JP6439246B2 - Sheet transport device - Google Patents

Description

  The present invention relates to a sheet conveying apparatus including a discharge tray that can support sheets of different sizes.

  An image recording apparatus such as a printer includes a sheet conveying apparatus that conveys a sheet on which an image is recorded. The sheet conveying apparatus includes a conveying unit that conveys a sheet and a discharge tray that supports the sheet conveyed by the conveying unit. A sheet conveying device mounted on an image recording apparatus is desired to be able to convey a large size sheet and to be small in size.

  Thus, for example, Patent Document 1 describes a discharge tray that includes a plurality of trays. The discharge tray described in Patent Document 1 is used in a state where a plurality of trays are overlapped when supporting a small size sheet, and is extended by sequentially pulling out the plurality of trays when supporting a large size sheet. It is used in the state that was done. There is also a discharge tray that can support a medium-sized sheet by pulling out only a part of the plurality of trays.

JP 2011-235986 A

  Sliding friction is generated between a plurality of overlapping trays. Therefore, when trying to extend the discharge tray, the tray may not be pulled out in a predetermined order. As a result, there is a problem that it takes time and effort to expand and contract the discharge tray to a length suitable for supporting a sheet of a desired size.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sheet conveying apparatus including a discharge tray that can be easily expanded and contracted to a length suitable for supporting a sheet of a desired size. Is to provide.

  (1) A sheet conveying apparatus according to the present invention includes a conveying unit that conveys a sheet, and a discharge tray that supports the sheet conveyed by the conveying unit on an upper surface. The discharge tray includes a main tray and a first storage position overlapping with the main body tray on a lower surface side of the main body tray and a first exposure position where the overlapping area with the main body tray is smaller than the first storage position. A first engagement portion that is supported by the main body tray so as to be movable in a first direction along the discharge direction of the sheet discharged to the discharge tray, and is engaged with the main body tray at the first storage position. A second storage position that overlaps with the first intermediate tray, and a second exposure position where the overlapping area between the first intermediate tray and the first intermediate tray is smaller than the second storage position on the lower surface side of the first intermediate tray. A second intermediate tray supported by the first intermediate tray so as to be movable in the first direction between positions, and having a second engaging portion engaged with the main body tray at the second storage position; On the lower surface side of the second intermediate tray, the third storage position that overlaps with the second intermediate tray and the third exposure position where the overlapping area with the second intermediate tray is smaller than the third storage position are the first storage position. A third intermediate tray supported by the second intermediate tray so as to be movable in a direction and having a third engagement portion engaged with the main body tray or the second intermediate tray at the third storage position; The first exposure position is rotatable between a superposition position overlapping the upper surface of the third intermediate tray exposed from the second intermediate tray at a third exposure position and a protrusion position protruding in the discharge direction from the third intermediate tray. 3 having a rotating tray supported by the intermediate tray.

  According to the above configuration, for example, when the discharge tray is extended by gripping the third intermediate tray, one of the second intermediate tray and the third intermediate tray is first drawn from the storage position to the exposure position, The other of the third intermediate trays is then pulled from the storage position to the exposure position, and the first intermediate tray is finally pulled from the storage position to the exposure position. That is, the intermediate trays are pulled out in a predetermined order. As a result, the discharge tray can be easily expanded and contracted to a length suitable for supporting a sheet of a desired size.

  (2) Preferably, the third engagement portion is engaged with the second intermediate tray at the third storage position. The engaging force of the third engaging portion with respect to the second intermediate tray is weaker than the engaging force of the second engaging portion with respect to the main body tray.

  According to the above configuration, for example, when the third intermediate tray is held and the discharge tray is extended, the third intermediate tray, the second intermediate tray, and the first intermediate tray are pulled out in this order. The operation to extend the length becomes even easier. Note that “engagement force” in the present specification refers to a force necessary to release engagement.

  (3) Preferably, the third engagement portion is disposed inside the discharge tray from the first engagement portion and the second engagement portion in a second direction orthogonal to the first direction. .

  According to the above configuration, since the engagement of the first engagement portion and the second engagement portion is more stable than that of the third engagement portion, the order of pulling out each intermediate tray is further stabilized.

  (4) Preferably, the sheet conveying apparatus further includes a feeding tray that supports the sheet conveyed by the conveying unit. The feeding tray has a first tray having a first support surface for supporting the sheet formed on the upper surface and a second support surface for supporting the sheet connected to the first support surface on the upper surface. The first size at which the first size sheet can be supported by the first support surface and the second support surface, and the second size sheet larger than the first size by the first support surface and the second support surface. And a second tray that moves in the first direction with respect to the first tray between the second positions that can be supported. The discharge tray is supported by the feeding tray so as to be rotatable between a lying position that covers at least a part of the second support surface and a standing position that stands up from the lying position. The feeding tray moves from the second storage position to the second exposure position in a state where the second tray is located at the first position and the discharge tray is located at the lying position. The second intermediate tray has a locking portion that locks the intermediate tray at a midway position between the second storage position and the second exposure position.

  According to the above configuration, when the first size sheet is supported on the feeding tray, it is possible to prevent the discharge tray from being extended more than necessary. That is, the sheet conveying apparatus can be used in a compact state.

  (5) Preferably, the feeding tray is configured so that the second tray moves from the first position to the second position in a state where the discharge tray is located at the lying position. A third interlocking portion for moving the intermediate tray from the third storage position to the third exposure position;

  According to the above configuration, the discharge tray is extended in conjunction with the feeding tray being pulled from the first position to the second position, so the second size sheet conveyed from the feeding tray by the conveying unit. Can be properly supported.

  (6) Preferably, the second tray has a substantially rectangular bottom wall on which the second support surface is formed on an upper surface, and a first standing on the downstream end of the bottom wall in the discharge direction. A second side wall and a third side wall, each of which is erected at both ends of the bottom wall in a second direction orthogonal to the first direction, each connected to the first side wall; and the second support And a reinforcing member disposed at a position overlapping the surface. The reinforcing member includes a first reinforcing portion that can simultaneously contact the inner surface of the first side wall and the inner surface of the second side wall, and a first reinforcing portion that can simultaneously contact the inner surface of the first side wall and the inner surface of the third side wall. 2 reinforcement parts.

  According to the said structure, even if it is a case where the 1st side wall, the 2nd side wall, and the 3rd side wall are formed with a resin-made thin plate, a deformation | transformation of a 2nd tray can be suppressed, for example.

  (7) Preferably, the second tray supports the end portion of the main body tray on the side opposite to the side from which the first intermediate tray is pulled out by the second side wall and the third side wall. And in the position which overlaps with the said 1st reinforcement part and the said 2nd reinforcement part, the said discharge tray of the said fall position is supported by the upper end of a said 1st side wall, a said 2nd side wall, and a said 3rd side wall.

  According to the said structure, the reinforcement member superimposed on a 2nd support surface is further covered with a discharge tray. On the other hand, since the upper surface of the first tray is released, the sheet can be inserted into the feeding tray from the first tray side. That is, the reinforcing member superimposed on the second support surface does not hinder insertion of the sheet.

  (8) For example, each of the second intermediate tray and the third intermediate tray has a rib projecting on the lower surface side and extending in the second direction, from each storage position to each exposure position. Is moved toward the discharge direction. The locking portion is a protrusion protruding from the upper surface of the reinforcing member, and abuts on a downstream wall surface in the discharge direction of the rib provided on the second intermediate tray. The interlocking portion is a protrusion protruding on the upper surface of the reinforcing member on a virtual straight line that passes through the locking portion and extends in the first direction, and the rib of the rib provided on the third intermediate tray It contacts the upstream wall surface in the discharge direction.

  (9) Preferably, on the first side wall, a receding wall that recedes toward the inner surface side in the central portion in the second direction is continuously formed. The reinforcing member further includes a connecting portion that connects the first reinforcing portion and the second reinforcing portion and is fixed to the receding wall.

  According to the above configuration, the deformation of the second tray can be further suppressed. Note that the portion where the receding wall is configured may function as a gripping portion gripped by the user from the outside of the second tray when operating the feeding tray.

  (10) Preferably, the transport unit feeds the sheet from the second tray side to the first tray side by rotating in contact with the sheet supported by the feed tray. The roller attached in the direction and the upstream end in the feeding direction as a rotation base end, and the downstream end in the feeding direction as a rotation tip, and the roller attached to the rotation tip And an arm that rotates in a direction to bring the roller in contact with and away from the sheet supported by the feeding tray. And the said reinforcement member is provided along the inner surface of the said 1st side wall, and the inclination which the surface which faces the upstream of the said feed direction inclines in the direction which approaches the said 1st side wall toward the said bottom wall side. It further has a wall.

  As the number of sheets stacked on the feeding tray increases, the roller configured as described above comes into contact with the sheet on the downstream side in the feeding direction. Therefore, by aligning the sheets stacked on the feeding tray with the inclined wall configured as described above so that the upper sheet is positioned on the downstream side in the feeding direction, the sheets are brought into contact with the roller at an appropriate position. be able to.

  (11) For example, in the discharge tray, the first intermediate tray is positioned at the first storage position, the second intermediate tray is positioned at the midway position, and the third intermediate tray is positioned at the third exposed position. The first size sheet can be supported in a state in which the rotating tray is positioned at the protruding position. In the discharge tray, the first intermediate tray is located at the first exposure position, the second intermediate tray is located at the second exposure position, and the third intermediate tray is located at the third exposure position. In addition, the second size sheet can be supported in a state where the rotating tray is located at the protruding position.

  (12) Preferably, the feeding tray and the discharge tray can be inserted into and removed from the sheet conveying apparatus. The sheet conveying apparatus includes a regulating unit that regulates the rotation of the inserted discharge tray from the lying position to the standing position.

  According to the above configuration, it is possible to further effectively prevent the discharge tray from being extended more than necessary in a state where the feeding tray and the discharge tray are inserted.

  According to the present invention, since each intermediate tray is pulled out in a predetermined order, the discharge tray can be easily expanded and contracted to a length suitable for supporting a sheet of a desired size.

FIG. 1 is a perspective view of the multifunction machine 10. FIG. 2 is a schematic diagram showing the internal structure of the printer unit 11. FIG. 3 is an exploded perspective view of the feeding tray 20. 4A and 4B are perspective views of the feeding tray 20 and the discharge tray 21, in which FIG. 4A is a state in which the discharge tray 21 is positioned at the lying position, and FIG. 4B is a state in which the discharge tray 21 is positioned at the standing position. Indicates. FIG. 5 is a perspective view of the feeding tray 20 and the discharge tray 21, in which the second tray 72 is located at the first position, the first intermediate tray 110 is located at the first storage position, and the second intermediate tray 130. Is located in the middle position, the third intermediate tray 150 is located in the third exposure position, and the rotating tray 160 is located in the protruding position. FIG. 6 is a perspective view of the feed tray 20 and the discharge tray 21, in which the second tray 72 is located at the second position, the first intermediate tray 110 is located at the first storage position, and the second intermediate tray 130. Is located at the second exposure position, the third intermediate tray 150 is located at the third exposure position, and the rotating tray 160 is located at the protruding position. FIG. 7 is a perspective view of the feed tray 20 and the discharge tray 21, in which the second tray 72 is located at the third position, the first intermediate tray 110 is located at the first exposure position, and the second intermediate tray 130. Is located at the second exposure position, the third intermediate tray 150 is located at the third exposure position, and the rotating tray 160 is located at the protruding position. FIG. 8 is a plan view of the feeding tray 20 when the second tray 72 is located at the third position. 9A and 9B are diagrams for explaining a lock mechanism 90 that restricts the movement of the second tray 72 relative to the first tray 71. FIG. 9A is a rear view of the first tray 71, and FIG. It is BB sectional drawing of. 10A and 10B are diagrams for explaining a lock mechanism 90 that allows the movement of the second tray 72 relative to the first tray 71. FIG. 10A is a rear view of the first tray 71, and FIG. It is BB sectional drawing of. FIG. 11 is a perspective view of the lower surface side of the main body tray 100. 12A and 12B are perspective views of the first intermediate tray 110, where FIG. 12A is a perspective view of the upper surface side, and FIG. 12B is a perspective view of the lower surface side. 13A and 13B are perspective views of the second intermediate tray 130, in which FIG. 13A is a top perspective view and FIG. 13B is a bottom perspective view. 14A and 14B are perspective views of the third intermediate tray 150, where FIG. 14A is a top perspective view and FIG. 14B is a bottom perspective view. FIG. 15 is a perspective view of the upper surface side of the rotating tray 160. FIG. 16 is a perspective view of the lower surface side of the discharge tray 21, in which the first intermediate tray 110 is located at the first storage position, the second intermediate tray 130 is located at the second storage position, and the third intermediate tray 150. Is located at the third storage position, and the rotation tray 160 is located at the overlapping position. FIG. 17 is a perspective view of the lower surface side of the discharge tray 21, where the first intermediate tray 110 is located at the first storage position, the second intermediate tray 130 is located at the midway position, and the third intermediate tray 150 is the first intermediate tray 150. 3 shows a state in which the rotation tray 160 is located at the protruding position. 18 is a longitudinal sectional view of the feeding tray 20 and the discharge tray 21, wherein (A) is a sectional view taken along line AA in FIG. 5, (B) is a sectional view taken along line BB in FIG. 6, and (C) is FIG. It is a CC cross section. FIG. 19 is a longitudinal sectional view of the housing 14 at the position of the facing portion 14A.

  Hereinafter, embodiments of the present invention will be described. The embodiment described below is merely an example of the present invention, and it is needless to say that the embodiment of the present invention can be changed as appropriate without departing from the gist of the present invention. In the following description, the vertical direction 7 is defined with reference to the state in which the multifunction machine 10 is installed (the state in FIG. 1), and the side where the opening 13 is provided is the front side (front side). A direction 8 is defined, and a left-right direction 9 is defined when the multifunction machine 10 is viewed from the front side (front). The front-rear direction 8 is an example of the first direction, and the left-right direction 9 is an example of the second direction.

[Overall configuration of MFP 10]
As shown in FIG. 1, the multifunction machine 10 is formed in a substantially rectangular parallelepiped shape, and includes a printer unit 11 that records an image on a sheet such as a recording sheet by an inkjet recording method. The multifunction machine 10 has various functions such as a facsimile function and a print function. The printer unit 11 corresponds to an image recording apparatus.

  The printer unit 11 includes a housing 14 having an opening 13 formed on the front surface. In addition, a feeding tray 20 and a discharge tray 21 that can accommodate recording sheets of various sizes can be inserted and removed from the opening 13 in the front-rear direction 8. The bottom surface of the housing 14 abuts on the placement surface on which the multifunction machine 10 is installed. As shown in FIG. 2, the printer unit 11 includes a feeding unit 15 that feeds recording paper from the feeding tray 20, a recording unit 24 that records an image on the recording paper, a first transport roller pair 54, and a second transport. A roller pair 55 and a bypass tray 50 are provided.

  As shown in FIG. 1, a scanner unit 12 is provided above the printer unit 11. The dimensions of the casing 16 of the scanner unit 12 in the front-rear direction 8 and the left-right direction 9 are the same as those of the casing 14 of the printer unit 11. Accordingly, the casing 14 of the printer unit 11 and the casing 16 of the scanner unit 12 are integrated to form a substantially rectangular parallelepiped outer shape of the multifunction machine 10. The scanner unit 12 is a flat bed scanner. In addition, since the structure of a flat bed scanner is well-known, detailed description is abbreviate | omitted here. The scanner unit 12 may be provided with an automatic document feeder (ADF) that separates and conveys a plurality of documents one by one.

[Printer 11]
Hereinafter, the detailed structure of the printer unit 11 will be described. The printer unit 11 corresponds to an image recording apparatus. A mechanism for conveying a sheet such as recording paper in the printer unit 11 corresponds to a sheet conveying apparatus. Further, the feeding unit 15, the first conveyance roller pair 54, and the second conveyance roller pair 55 correspond to the conveyance unit.

[Feeding tray 20]
The feeding tray 20 has an outer shape in which the lengths in the front-rear direction 8 and the left-right direction 9 are longer than the length in the up-down direction 7, and has a box shape with an open upper surface. A discharge tray 21 is provided on the front side of the upper surface of the feeding tray 20. The feeding tray 20 can accommodate a recording sheet by supporting recording sheets of various sizes such as an A4 size according to Japanese Industrial Standards and an L plate used for photographic recording on a supporting surface. The feeding tray 20 is detachably mounted in an internal space that communicates with the opening 13 of the housing 14. The feeding tray 20 can advance and retreat along the front-rear direction 8 with respect to the housing 14 through the opening 13. The bypass tray 50 is provided on the rear side of the multifunction machine 10 and stores recording paper independently of the feeding tray 20. Details of the bypass tray 50 are omitted.

  As shown in FIGS. 4 to 7, the feeding tray 20 is configured to be able to extend and contract in the front-rear direction 8. The feeding tray 20 in the most contracted state is accommodated in the housing 14 as shown in FIG. On the other hand, a part of the feeding tray 20 in an extended state (more specifically, a part of the second tray 72 described later) is exposed from the housing 14. The direction in which the recording paper supported by the feeding tray 20 is fed by the feeding unit 15 is defined as a feeding direction 17 in particular. That is, the feeding direction 17 in FIG. 2 is a direction from front to back along the front-rear direction 8. The detailed configuration of the feeding tray 20 will be described later.

  As shown in FIG. 1, the discharge tray 21 is provided on the upper side of the feeding tray 20. The discharge tray 21 is integrated with the feeding tray 20 and can advance and retreat with respect to the housing 14. The discharge tray 21 can support the recording paper discharged by the second transport roller pair 55. As shown in FIG. 4, the discharge tray 21 is supported by the feeding tray 20 so as to be rotatable about a rotation axis extending in the left-right direction 9. More specifically, the discharge tray 21 has a lying position (see FIG. 4A) that covers a portion above the feeding tray 20 and a standing position that stands up from the lying position (see FIG. 4B). Rotate between. Moreover, the discharge tray 21 is configured to be able to extend and contract in the front-rear direction 8 as shown in FIGS. The direction in which the recording paper is discharged to the discharge tray 21 by the second conveyance roller pair 55 is defined as a discharge direction 18 in particular. That is, the discharge direction 18 in FIG. 2 is a direction from the rear to the front along the front-rear direction 8. The detailed configuration of the discharge tray 21 will be described later.

[Feeding unit 15]
As shown in FIG. 2, the feeding unit 15 includes a feeding roller 25, a feeding arm 26, a drive transmission mechanism 27, and a separation pad 23. The feeding unit 15 is provided above the feeding tray 20 and below the recording unit 24. The feed roller 25 is pivotally supported at the rotation tip of the feed arm 26 (the end on the downstream side of the feed direction 17) so as to be rotatable. The feeding arm 26 brings the feeding roller 25 into and out of contact with the recording paper supported by the feeding tray 20 around a shaft 28 provided at the rotation base end (upstream end in the feeding direction). It rotates in the direction (direction of arrow 29). Thereby, the feed roller 25 can be brought into contact with and separated from the support surface of the feed tray 20.

  Therefore, when the feeding tray 20 containing the recording paper is mounted in the housing 14, the feeding roller 25 can come into contact with the recording paper stored in the feeding tray 20. A separation pad 23 is provided at a position where the feed roller 25 contacts the support surface of the feed tray 20 when the feed tray 20 that does not contain recording paper is mounted in the housing 14. The separation pad 23 is formed of a material having a friction coefficient larger than that of the support surface of the feeding tray 20 with respect to the recording paper.

  A driving force of a motor (not shown) is transmitted to the feeding roller 25 through a drive transmission mechanism 27. The drive transmission mechanism 27 transmits the rotation transmitted to the shaft 28 to the shaft of the feeding roller 25 by an endless belt. When the feeding roller 25 rotates while being in contact with the uppermost recording sheet among the recording sheets supported on the support surface of the feeding tray 20, the recording sheet is fed to the conveyance path 65. Is done. When the recording sheet is fed to the conveyance path 65, the leading end of the recording sheet comes into contact with a rear plate 76 provided on the rear side in the front-rear direction 8 of the feeding tray 20. As a result, only the uppermost recording paper is separated from the lower recording paper and conveyed. Then, the lower recording paper than the uppermost recording paper is held while being accommodated in the feeding tray 20 without being dragged by the uppermost recording paper.

[Conveyance path 65]
As shown in FIG. 2, the conveyance path 65 provided in the internal space of the housing 14 extends in a curved manner so as to make a U-turn upward from the rear side of the feed tray 20, and further on the rear side of the printer unit 11. After being bent from the front side to the front side, it extends almost straight toward the front side and reaches the discharge tray 21. The conveyance path 65 is roughly divided into a curved path 65A that makes a U-turn and a straight path 65B that is straight. The curved path 65A is defined by the outer guide member 30 and the inner guide member 31 that face each other with a space through which the recording paper can pass. The straight path 65B is defined by the recording unit 24, the platen 40, and the like that face each other with a space through which the recording sheet can pass.

  The recording paper fed along the conveyance path 65 by the feeding roller 25 of the feeding tray 20 is reversed in the conveyance direction from below to above along the curved path 65A, and is conveyed along the straight path 65B. Is conveyed from the rear to the front without being inverted. The outer guide member 30 is a member that constitutes an outer guide surface when the recording paper is conveyed along the curved path 65A. The inner guide member 31 is a member that forms an inner guide surface when the recording sheet is conveyed along the curved path 65A. In addition, each guide surface may be comprised by one surface, and may be comprised as a group of the front end surface of a some rib.

[First Conveying Roller Pair 54 and Second Conveying Roller Pair 55]
As shown in FIG. 2, a first transport roller pair 54 is provided on the upstream side of the transport path 65 upstream of the recording unit 24 in the transport direction (frontward in the front-rear direction 8). The first transport roller pair 54 includes a first transport roller 60 and a pinch roller 61. In the conveyance path 65, a second conveyance roller pair 55 is provided on the downstream side of the recording unit 24 in the conveyance direction. The second transport roller pair 55 includes a second transport roller 62 and a spur roller 63. The first transport roller 60 and the second transport roller 62 are rotated by the rotation of a motor (not shown). The first conveyance roller pair 54 and the second conveyance roller pair 55 perform recording by rotating the first conveyance roller 60 and the second conveyance roller 62 in a state where the recording paper is sandwiched between the respective rollers constituting the first conveyance roller pair 54 and the second conveyance roller pair 55. Transport the paper.

[Recording unit 24]
As shown in FIG. 2, the recording unit 24 is provided between the first conveyance roller pair 54 and the second conveyance roller pair 55. The recording unit 24 includes a carriage 38 and a recording head 39. The carriage 38 is supported by guide rails 33 and 34 provided on the rear side and the front side of the platen 40 so as to reciprocate in the left-right direction 9. The guide rail 34 is provided with a known belt mechanism. The carriage 38 is connected to an endless belt of a belt mechanism, and reciprocates in the left-right direction 9 along the guide rails 33 and 34 by the rotation of the endless belt. When the carriage 38 and the recording head 39 are opposed to the platen 40 across a space, the carriage 38, the recording head 39, and the platen 40 define a part of the straight path 65B.

  The recording head 39 is mounted on the carriage 38. A plurality of nozzles (not shown) are formed on the lower surface of the recording head 39. Ink is supplied to the recording head 39 from an ink cartridge (not shown). The recording head 39 selectively ejects ink from a plurality of nozzles as fine ink droplets. When the carriage 38 moves in the left-right direction 9, ink droplets are ejected from the nozzles onto the recording paper supported on the platen 40. As the ejected ink droplets adhere to the recording paper on the platen 40, an image is recorded on the recording paper. Note that the method by which the recording unit 24 records an image on a recording sheet is not limited to the ink jet recording method, and may be, for example, an electrophotographic method.

[Feeding tray 20]
As shown in FIG. 3, the feeding tray 20 includes a first tray 71, a second tray 72, a pair of connecting members 73, and a reinforcing member 80. As shown in FIGS. 4 to 7, the feeding tray 20 can support recording sheets of various sizes by moving the second tray 72 in the front-rear direction 8 with respect to the first tray 71. It is configured as follows. Further, as shown in FIGS. 8 to 10, the feeding tray 20 is provided with a lock mechanism 90 that restricts the movement of the second tray 72 relative to the first tray 71.

[First tray 71]
The first tray 71 includes a substantially rectangular bottom plate 74, a pair of side plates 75 erected upward from both ends in the left-right direction 9 of the bottom plate 74, and a rear plate 76 erected upward from the rear end of the bottom plate 74. Is provided. The bottom plate 74, the pair of side plates 75, and the rear plate 76 constituting the first tray 71 are integrally molded by, for example, a resin material. That is, the bottom plate 74, the pair of side plates 75, and the rear plate 76 in the present embodiment are resin thin plates. Guide members 41 and 42 and contact members 43 and 44 are provided on the upper surface of the bottom plate 74.

  The guide members 41, 42 position the recording paper in the left-right direction 9 by abutting against the ends of the recording paper supported by the bottom plate 74 on one side and the other side in the left-right direction 9. As shown in FIGS. 5 and 6, the guide members 41 and 42 are configured to be movable in the left-right direction 9 in conjunction with each other by a pinion gear (not shown). Thereby, the guide members 41 and 42 can position recording sheets of various sizes in the left-right direction 9.

  The abutting members 43 and 44 are disposed substantially at the center in the left-right direction 9 on the upper surface of the bottom plate 74. The abutting members 43 and 44 are rotatable between a lying position shown in FIG. 5 and an upright position erected upward with the front end as a rotation base end and the rear end as a rotation tip. It is configured. The contact members 43 and 44 are in contact with the front end of the recording paper supported on the upper surface of the bottom plate 74 (the upstream end of the feeding direction 17), and position the recording paper in the front-rear direction 8. By providing a plurality of contact members 43 and 44 on the bottom plate 74, it is possible to position sheets of various sizes in the front-rear direction 8.

[Second tray 72]
The second tray 72 includes a substantially rectangular bottom plate 77, a pair of side plates 78 erected upward from both ends in the left-right direction 9 of the bottom plate 77, and a front plate 79 erected upward from the front end of the bottom plate 77. Prepare. The pair of side plates 78 is connected to the front plate 79 at the front end thereof. The pair of side plates 78 and the front plate 79 supports the discharge tray 21 at the fall position at the upper ends thereof. The bottom plate 77, the pair of side plates 78, and the front plate 79 constituting the second tray 72 are integrally molded by, for example, a resin material. That is, the bottom plate 77, the pair of side plates 78, and the front plate 79 in the present embodiment are resin thin plates.

  The outer surface of the front plate 79 (the surface on the front side in the front-rear direction 8) is exposed to the outside of the multifunction machine 10 as shown in FIG. Further, the outer surface of the front plate 79 is substantially flush with the front surface of the housing 14 in a state where the feeding tray 20 is most contracted. Further, on the outer surface of the front plate 79, a gripping portion 79 </ b> A that is gripped by the user when the feeding tray 20 is pulled out from the multi-function device 10 is provided in the lower portion in the vertical direction 7 and in the central portion in the left-right direction 9. .

  The gripping portion 79 </ b> A is a portion in which a part of the front plate 79 at the lower portion in the vertical direction 7 and the central portion in the left-right direction 9 is retracted to the rear side in the front-rear direction 8. Specifically, as shown in FIG. 3, the front plate 79 at the position of the gripping portion 79A includes a receding wall 79B that recedes to the inner surface side of the front plate 79, an upper end of the receding wall 79B, and the front plate 79. An upper wall 79C to be connected is formed. That is, the receding wall 79B is continuous with the front plate 79 via the upper wall 79C at its upper end. The receding wall 79B is continuous with the front plate 79 at both ends in the left-right direction 9.

  The upper surface of the bottom plate 74 of the first tray 71 and the upper surface of the bottom plate 77 of the second tray 72 constitute a support surface that supports the recording paper in a row. That is, the feeding tray 20 supports the recording paper in a stacked state on the upper surfaces of the bottom plates 74 and 77. The upper surface of the bottom plate 74 is an example of a first support surface, and the upper surface of the bottom plate 77 is an example of a second support surface. The front plate 79 is an example of a first side wall, and the pair of side plates 78 is an example of a second side wall and a third side wall.

[Connecting member 73]
The connecting member 73 is a so-called angle that includes a vertical plate 73A and a horizontal plate 73B that extend in the front-rear direction 8 and are orthogonal to each other. The inner surface of the vertical plate 73A faces the outer surface of the side plate 75 of the first tray 71, and the outer surface of the vertical plate 73A faces the inner surface of the side plate 78 of the second tray 72. The horizontal plate 73B has an upper surface facing the lower surface of the bottom plate 74 of the first tray 71, and a lower surface facing the upper surface of the bottom plate 77 of the second tray 72. For example, ribs and grooves extending in the front-rear direction 8 are provided on the surfaces of the first tray 71 and the second tray 72 and the connecting member 73 facing each other. The first tray 71, the second tray 72, and the connecting member 73 move relative to each other in the front-rear direction 8 with each rib entering the corresponding groove. Thereby, the feeding tray 20 is contracted or extended.

  As shown in FIGS. 4 and 5, the feeding tray 20 has an A4 size recording sheet on the upper surface of the bottom plate 74 in a state where the overlapping area of the upper surface of the first tray 71 and the upper surface of the second tray 72 is the largest. Can be supported. The feed tray 20 shown in FIGS. 4 and 5 can support A4 size recording paper whose longitudinal direction is the left-right direction 9. The position of the second tray 72 with respect to the first tray 71 shown in FIGS. 4 and 5 is an example of the first position. The A4 size is an example of the first size. In the present embodiment, the recording sheet is supported only by the upper surface of the bottom plate 74 in a state where the second tray 72 is positioned at the first position. However, the present invention is not limited to this, and the upper surface of the bottom plate 74 and the upper surface of the bottom plate 77 The recording paper may be supported by.

  Further, as shown in FIG. 6, the feeding tray 20 supports B4 size recording paper on the upper surfaces of the bottom plates 74 and 77 in a state where the second tray 72 is pulled forward with respect to the first tray 71. can do. The feeding tray 20 shown in FIG. 6 can support a B4 size recording sheet whose longitudinal direction faces the front-rear direction 8. The overlapping area of the upper surface of the first tray 71 and the upper surface of the second tray 72 in FIG. 6 is smaller than the overlapping area of the upper surface of the first tray 71 and the upper surface of the second tray 72 in FIGS. The position of the second tray 72 with respect to the first tray 71 shown in FIG. 6 is an example of the second position. The B4 size is an example of the second size.

  Further, as shown in FIG. 7, the feeding tray 20 allows A3 size recording paper to be placed on the upper surfaces of the bottom plates 74 and 77 in a state where the second tray 72 is further pulled forward with respect to the first tray 71. Can be supported. The feeding tray 20 shown in FIG. 7 can support A3 size recording paper whose longitudinal direction is the front-rear direction 8. The overlapping area of the upper surface of the first tray 71 and the upper surface of the second tray 72 in FIG. 7 is smaller than the overlapping area of the upper surface of the first tray 71 and the upper surface of the second tray 72 in FIG. The position of the second tray 72 relative to the first tray 71 is an example of the third position (another example of the second position). The A3 size is an example of the third size (another example of the second size).

[Reinforcing member 80]
As shown in FIG. 3, the reinforcing member 80 includes a first reinforcing portion 81, a second reinforcing portion 82, and a connecting portion 83. The reinforcing member 80 ensures the rigidity of the second tray 72 including the bottom plate 77, the pair of side plates 78, and the front plate 79. As shown in FIG. 4B, the reinforcing member 80 is disposed at a position facing the upper surface of the bottom plate 77 (that is, the second support surface) and the inner surfaces of the pair of side plates 78 and the front plate 79. That is, the reinforcing member 80 is disposed in a position overlapping with the recording paper supported on the upper surface of the bottom plate 77 in the vertical direction 7. Further, the reinforcing member 80 is provided at a position overlapping the discharge tray 21 at the lying down position in the vertical direction 7.

  The first reinforcing portion 81 has a reinforcing wall 81 </ b> A that extends in the front-rear direction 8 and the left-right direction 9. The reinforcing wall 81A includes at least a virtual triangular region in plan view from the vertical direction 7, as indicated by a broken line in FIG. As shown in FIG. 4B, the reinforcing wall 81A has one side of the triangle (the right end surface of the reinforcing wall 81A) facing the inner surface of the right side plate 78, and the other side of the triangle (the reinforcing wall 81A). (Front end surface) faces the inner surface of the front plate 79. That is, when the right side plate 78 or the front plate 79 is about to be deformed so as to fall inward, the reinforcing wall 81A can simultaneously contact the right side plate 78 and the front plate 79.

  The second reinforcing portion 82 has a reinforcing wall 82 </ b> A that extends in the front-rear direction 8 and the left-right direction 9. The reinforcing wall 82A includes at least a virtual triangular region in a plan view from the up-down direction 7, as indicated by a broken line in FIG. As shown in FIG. 4B, the reinforcing wall 82A has one side of the triangle (the left end surface of the reinforcing wall 81A) facing the inner surface of the left side plate 78, and the other side of the triangle (the reinforcing wall 81A). (Front end surface) faces the inner surface of the front plate 79. That is, when the left side plate 78 or the front plate 79 is about to be deformed so as to fall inward, the reinforcing wall 82A can simultaneously contact the left side plate 78 and the front plate 79.

  The reinforcing walls 81A and 82A may have a rectangular shape including a triangle indicated by a broken line as shown in FIG. That is, the reinforcing walls 81A and 82A may have any shape as long as they include a virtual triangle indicated by a broken line in FIG. Each end surface of the reinforcing wall 81 </ b> A preferably faces the upper end portions of the right side plate 78 and the front plate 79. Similarly, each end surface of the reinforcing wall 82A preferably faces the upper end portions of the left side plate 78 and the front plate 79.

  In addition, a first protrusion 84 and a second protrusion 85 project from the upper surfaces of the reinforcing walls 81A and 82A. The pair of first protrusions 84 provided on the reinforcing walls 81 </ b> A and 82 </ b> A are provided on a virtual straight line extending in the left-right direction 9. Similarly, the pair of second protrusions 85 provided on the reinforcing walls 81 </ b> A and 82 </ b> A are provided on an imaginary straight line extending in the left-right direction 9. Further, the first protrusion 84 and the second protrusion 85 provided on the reinforcing wall 81 </ b> A are arranged on a virtual straight line extending in the front-rear direction 8. Similarly, the first protrusion 84 and the second protrusion 85 provided on the reinforcing wall 82 </ b> A are arranged on a virtual straight line extending in the front-rear direction 8. The first protrusion 84 is an example of a locking part, and the second protrusion 85 is an example of an interlocking part.

  The connecting portion 83 is connected to the first reinforcing portion 81 and the second reinforcing portion 82 at both ends in the left-right direction 9. Further, the connecting portion 83 is fixed to the upper surface of the bottom plate 77 and the upper surface of the upper wall 79C on the lower surface side. Although the fixing method of the connection part 83 is not specifically limited, It may be fastened with a volt | bolt etc. and may mutually be engaged. Moreover, the connection part 83 has the inclination wall 83A, as FIG. 18 shows. The inclined wall 83 </ b> A is provided along the inner surface of the front plate 79. Further, the surface facing the downstream side of the feeding direction 17 of the inclined wall 83A (that is, the surface facing the front side in the front-rear direction 8) is inclined toward the front plate 79 toward the bottom plate 77 of the second tray 72. ing. That is, the inclined wall 83A is inclined forward. The inclined wall 83A abuts on the front end (upstream end of the feeding direction 17) of the recording paper supported by the feeding tray 20.

[Lock mechanism 90]
The lock mechanism 90 restricts the movement of the second tray 72 relative to the first tray 71 or cancels the restriction. As shown in FIGS. 8 to 10, the lock mechanism 90 includes an engagement member 91, an operation member 92, a link member 93, and an urging member 94. In the present embodiment, the engaging member 91, the operation member 92, the link member 93, and the urging member 94 are supported by the first tray 71.

  The engaging member 91 is provided at a position where the first tray 71 and the second tray 72 overlap in a state where the second tray 72 is most pulled out with respect to the first tray 71 (that is, the state shown in FIG. 7). It has been. That is, the position where the engaging member 91 is provided is a position where the first tray 71 and the second tray 72 always overlap. Moreover, the engaging member 91 is arrange | positioned in the position covered with the discharge tray 21 of a fall position as FIG. 4-7 shows. Further, the engaging member 91 is provided in the approximate center of the feeding tray 20 in the left-right direction 9.

  The engaging member 91 is movable in the left-right direction 9 with respect to the feeding tray 20. As shown in FIGS. 9 and 10, the engaging member 91 includes a main body 95 and an engaging portion 96 protruding from the back surface of the main body 95. The main body 95 is always engaged (supported) with the first tray 71. The engaging portion 96 protrudes from the lower surface of the bottom plate 74 through an opening 74 </ b> A provided in the bottom plate 74 of the first tray 71 and extends to a position where it can contact the second tray 72.

  As shown in FIG. 9B, the engaging portion 96 is engaged with the bottom plate 77 of the second tray 72 when the main body 95 is located at the position shown in FIGS. Engaged with the joint 77A. That is, the engaging member 91 shown in FIGS. 8 and 9 is engaged with both the first tray 71 and the second tray 72. Thereby, the movement of the second tray 72 relative to the first tray 71 is restricted. The position of the engaging member 91 shown in FIGS. 8 and 9 is an example of the engaging position.

  On the other hand, the engagement portion 96 is disengaged from the engaged portion 77A as shown in FIG. 10B when the main body 95 is located at the position shown in FIG. That is, the engaging member 91 shown in FIG. 10 is engaged with the first tray 71 and is not engaged with the second tray 72. Thereby, the movement of the second tray 72 relative to the first tray 71 is allowed (that is, the restriction is released). The position of the engagement member 91 shown in FIG. 10 (that is, the position moved to the left from the engagement position) is an example of the engagement release position.

  As shown by broken line frames in FIG. 8, the engaged portions 77 </ b> A are provided at two positions separated in the left-right direction 9 at a plurality of positions separated in the front-rear direction 8. Specifically, the engaged portion 77A engages with the engaging portion 96 in a state where the second tray 72 is pushed most into the first tray 71 (first position shown in FIGS. 4 and 5). Engageable with the engaging portion 96 in a possible position (a position of a broken line frame on the front side) and a state in which the second tray 72 is pulled out partway from the first tray 71 (second position shown in FIG. 6). The position (the position of the broken line frame in the center) and the position (rearward) that can be engaged with the engaging portion 96 in the state where the second tray 72 is pulled out from the first tray 71 to the maximum (the third position shown in FIG. 7). Side broken frame position).

  Although the specific configuration of the engaged portion 77A is not particularly limited, for example, the engaged portion 77A may have a pair of wall surfaces facing each other in the front-rear direction 8. Then, when the engaging portion 96 enters between the pair of wall surfaces, the engaging portion 96 and the engaged portion 77A are engaged. On the other hand, when the engaging portion 96 is retracted from between the pair of wall surfaces, the engagement between the engaging portion 96 and the engaged portion 77A is released.

  As shown in FIG. 4, the operation member 92 is provided at a position (directly below the rotation axis of the discharge tray 21) that overlaps the rotation axis of the discharge tray 21. The operation member 92 is provided at a position shifted from the center of the feeding tray 20 in the left-right direction 9 to one side (left side in the example of FIG. 8). The operation member 92 is provided at a position adjacent to the contact member 43 in the left-right direction 9. Further, the operation member 92 is provided at a position separated from the engagement member 91 in the front-rear direction 8 (rear side in the example of FIG. 8). The operation member 92 is exposed on both the upper surface side and the lower surface side of the bottom plate 74 through an opening 74 </ b> B provided in the bottom plate 74 of the first tray 71.

  The operation member 92 is movable in the left-right direction 9 with respect to the feeding tray 20. The position of the operation member 92 shown in FIGS. 8 and 9 is an example of a lock position. The position of the operation member 92 shown in FIG. 10 (that is, the position moved to the right from the lock position) is an example of the lock release position. The operation member 92 is urged by the urging member 94 toward the lock position. Although the specific example of the biasing member 94 is not specifically limited, For example, it is a coil spring.

  The link member 93 is rotatably supported on the lower surface of the bottom plate 74 of the first tray 71 between the engagement member 91 and the operation member 92 in the front-rear direction 8. The link member 93 is a long plate-like member, and one end thereof is connected to the engagement member 91 and the other end is connected to the operation member 92. By the movement of the operation member 92 from one of the lock position and the lock release position to the other, the link member 93 rotates in a direction to move the engagement member 91 from one of the engagement position and the engagement release position to the other. The engaging member 91 is moved in the direction opposite to the moving direction of the operation member 92 by the link member 93.

  More specifically, as the operation member 92 moves from the lock position to the lock release position, the link member 93 rotates in the first direction (counterclockwise in the examples of FIGS. 9 and 10), and the engagement member 91 Is moved from the engagement position to the engagement release position. As a result, when the operation member 92 is positioned at the lock release position, the engagement member 91 is positioned at the engagement release position. That is, the operation member 92 is moved to the right against the urging force of the urging member 94, thereby allowing the second tray 72 to move with respect to the first tray 71.

  Further, the movement of the operation member 92 from the unlocked position to the locked position causes the link member 93 to rotate in the second direction opposite to the first direction (clockwise in the examples of FIGS. 9 and 10) and engage. The member 91 is moved from the engagement release position to the engagement position. As a result, when the operation member 92 is located at the lock position, the engagement member 91 is located at the engagement position. That is, when the force for moving the operation member 92 to the right is lost, the operation member 92 is moved to the left by the urging member 94, thereby restricting the movement of the second tray 72 relative to the first tray 71.

[Discharge tray 21]
As shown in FIG. 7, the discharge tray 21 includes a main body tray 100, a first intermediate tray 110, a second intermediate tray 130, a third intermediate tray 150, and a rotating tray 160. The main body tray 100, the first intermediate tray 110, the second intermediate tray 130, the third intermediate tray 150, and the rotating tray 160 support the recording paper discharged by the discharge roller pair 66 on the respective upper surfaces. Hereinafter, the positional relationship of each component will be described on the assumption that the discharge tray 21 is lying down.

  The main body tray 100 is rotatably supported by the feeding tray 20 (more specifically, the pair of side plates 78 of the second tray 72). The first intermediate tray 110 is supported on the lower surface side of the main body tray 100 so as to be movable in the front-rear direction 8 with respect to the main body tray 100. The second intermediate tray 130 is supported on the lower surface side of the first intermediate tray 110 so as to be movable in the front-rear direction 8 with respect to the first intermediate tray 110. The third intermediate tray 150 is supported on the lower surface side of the second intermediate tray 130 so as to be movable in the front-rear direction 8 with respect to the second intermediate tray 130. The rotating tray 160 is rotatably supported by the third intermediate tray 150.

[Main body tray 100]
As shown in FIG. 11, the main body tray 100 has a rectangular flat plate shape whose outer dimension in the left-right direction 9 is longer than the outer dimension in the front-rear direction 8. The outer dimension of the main body tray 100 in the left-right direction 9 is substantially the same as the distance between the pair of side plates 75 of the second tray 72. The upper surface of the main body tray 100 is a plane along the front-rear direction 8 and the left-right direction 9 as shown in FIGS. In addition, a pair of ribs 109 are provided on the upper surface of the main body tray 100 at both ends in the left-right direction 9. The pair of ribs 109 protrude from the upper surface of the main body tray 100 and extend in the front-rear direction 8.

  A pair of support shafts projecting outward in the left-right direction 9 on the rear side of the main body tray 100 in the lying down position (that is, the side opposite to the side from which the first intermediate tray 110 is pulled out) and in the left-right direction 9 101 is provided. By supporting the pair of support shafts 101 on the upper ends of the pair of side plates 75, the main body tray 100 can rotate with respect to the feed tray 20 around a rotation axis extending in the left-right direction 9. A rectangular notch 102 is formed at the front end of the main body tray 100 in the front-rear direction 8 and at the center in the left-right direction 9.

  On the lower surface of the main body tray 100, a first rail portion 103, a second rail portion 104, a third rail portion 105, and a fourth rail portion 106, each extending along the front-rear direction 8, are provided. The first rail portion 103, the second rail portion 104, the third rail portion 105, and the fourth rail portion 106 are provided at positions separated in the left-right direction 9 on the lower surface of the main body tray 100. The first rail portion 103 and the second rail portion 104 are arranged outside the main body tray 100 in the left-right direction 9 from the third rail portion 105 and the fourth rail portion 106. The center position of the first rail portion 103 and the second rail portion 104 in the left-right direction 9, the center position of the third rail portion 105 and the fourth rail portion 106 in the left-right direction 9, and the position of the main body tray 100 in the left-right direction 9 It coincides with the center position (the chain line in FIG. 11).

  The first rail portion 103 has a first rib 103A and a first protrusion 103B. The first rib 103 </ b> A protrudes downward from the lower surface of the main body tray 100 and extends in the front-rear direction 8. The first protrusion 103 </ b> B protrudes leftward from the left surface of the first rib 103 </ b> A in the left-right direction 9 and extends in the front-rear direction 8. The lower surface of the main body tray 100 and the upper surface of the first protrusion 103 </ b> B are spaced apart in the vertical direction 7. That is, a space is formed between the lower surface of the main body tray 100 and the upper surface of the first protrusion 103B.

  The second rail portion 104 has a second rib 104A and a second protrusion 104B. The second rib 104 </ b> A protrudes downward from the lower surface of the main body tray 100 and extends in the front-rear direction 8. The second projecting portion 104B projects rightward from the right surface of the second rib 104A in the left-right direction 9 and extends in the front-rear direction 8. The lower surface of the main body tray 100 and the upper surface of the second protrusion 104B are spaced apart in the vertical direction 7. That is, a space is formed between the lower surface of the main body tray 100 and the upper surface of the second protrusion 104B.

  The third rail portion 105 includes a third rib 105A and a third protruding portion 105B. The third rib 105 </ b> A protrudes downward from the lower surface of the main body tray 100 and extends in the front-rear direction 8. The third projecting portion 105 </ b> B projects rightward from the right surface of the third rib 105 </ b> A in the left-right direction 9 and extends in the front-rear direction 8. The lower surface of the main body tray 100 and the upper surface of the third protrusion 105B are spaced apart in the vertical direction 7. That is, a space is formed between the lower surface of the main body tray 100 and the upper surface of the third protrusion 105B. Furthermore, a pair of convex portions 105C projecting downward is provided on the lower surface of the third projecting portion 105B. The pair of convex portions 105 </ b> C are provided adjacent to the front-rear direction 8. That is, the space between the pair of convex portions 105 </ b> C in the front-rear direction 8 is recessed.

  The fourth rail portion 106 includes a fourth rib 106A and a fourth protrusion 106B. The fourth rib 106 </ b> A protrudes downward from the lower surface of the main body tray 100 and extends in the front-rear direction 8. The fourth protrusion 106 </ b> B protrudes leftward from the left surface of the fourth rib 106 </ b> A in the left-right direction 9 and extends in the front-rear direction 8. The lower surface of the main body tray 100 and the upper surface of the fourth protrusion 106B are spaced apart in the vertical direction 7. That is, a space is formed between the lower surface of the main body tray 100 and the upper surface of the fourth protrusion 106B. Furthermore, a pair of convex portions 106C projecting downward are provided on the lower surface of the fourth projecting portion 106B. The pair of convex portions 106 </ b> C are provided adjacent to the front-rear direction 8. That is, the space between the pair of convex portions 106 </ b> C in the front-rear direction 8 is recessed.

  Engaged portions 107 and 108 are provided at the rear end portion of the lower surface side of the main body tray 100. The engaged portions 107 and 108 are arranged outside the main body tray 100 from the first rail portion 103 and the second rail portion 104 in the left-right direction 9. That is, the engaged portion 107 is disposed on the right side of the main body tray 100 from the first rail portion 103, and the engaged portion 108 is disposed on the left side of the main body tray 100 from the second rail portion 104.

  The engaged portion 107 has a pair of inclined surfaces 107A and 107B that face the first rail portion 103 in the left-right direction 9 and are adjacent to each other in the front-rear direction 8. The inclined surface 107A and the inclined surface 107B are inclined in directions opposite to each other. More specifically, the engaged portion 107 in the left-right direction 9 is a first rail at a connection position between the inclined surface 107A and the inclined surface 107B (hereinafter referred to as “the top position of the engaged portion 107”). It is configured to be closest to the portion 103 and away from the first rail portion 103 as it is separated from the top position in the front-rear direction 8 along the inclined surfaces 107A and 107B.

  The engaged portion 108 has a pair of inclined surfaces 108 </ b> A and 108 </ b> B that face the second rail portion 104 in the left-right direction 9 and are adjacent to each other in the front-rear direction 8. The inclined surface 108A and the inclined surface 108B are inclined in directions opposite to each other. More specifically, the engaged portion 108 in the left-right direction 9 is a second rail at a connection position between the inclined surface 108A and the inclined surface 108B (hereinafter referred to as “the top position of the engaged portion 108”). It is configured to be closest to the portion 104 and away from the second rail portion 104 as it is separated from the top position in the front-rear direction 8 along the inclined surface 108A and the inclined surface 108B.

[First intermediate tray 110]
As shown in FIG. 12, the first intermediate tray 110 has a rectangular flat plate shape whose outer dimension in the left-right direction 9 is longer than the outer dimension in the front-rear direction 8. The outer dimension of the first intermediate tray 110 in the left-right direction 9 is substantially the same as the outer dimension of the main body tray 100 in the left-right direction 9. However, strictly speaking, the outer dimension in the left-right direction 9 of the first intermediate tray 110 is slightly shorter than the outer dimension in the left-right direction 9 of the main body tray 100. The upper surface of the first intermediate tray 110 is a substantially flat surface along the front-rear direction 8 and the left-right direction 9. A rectangular notch 112 is formed at the front end of the first intermediate tray 110 in the front-rear direction 8 and at the center in the left-right direction 9. The notch 112 is provided at a position overlapping the notch 102 of the main body tray 100 in the vertical direction 7 in a state where the first intermediate tray 110 is stored below the main body tray 100.

  The first intermediate tray 110 has a central portion 110A located at the center in the left-right direction 9, and a right end portion 110B and a left end portion 110C located on both sides in the left-right direction 9. The right end portion 110B and the left end portion 110C are unevenly distributed in the vertical direction 7 below the center portion 110A. That is, a step in the vertical direction 7 is formed at the boundary portion between the central portion 110A and the right end portion 110B. Similarly, a step in the vertical direction 7 is formed at the boundary portion between the central portion 110A and the left end portion 110C. Further, the length in the front-rear direction 8 of the right end part 110B and the left end part 110C is shorter than the length of the center part 110A in the front-rear direction 8. More specifically, the rear ends of the right end portion 110B and the left end portion 110C are located on the front side of the rear end of the central portion 110A.

  A first engagement portion 117 is provided at the right end portion 110B. The first engagement portion 117 includes an elastic portion 117A that extends rearward in the front-rear direction 8 from the rear end of the right end portion 110B, and an outer side in the left-right direction 9 from the tip of the elastic portion 117A (the end on the rear side in the front-rear direction 8). And a projecting portion 117B projecting to the surface. Similarly, a first engagement portion 118 is provided at the left end portion 110C. The first engagement portion 118 includes an elastic portion 118A that extends rearward in the front-rear direction 8 from the rear end of the left end portion 110C, and an outer side in the left-right direction 9 from the tip of the elastic portion 118A (the end portion on the rear side in the front-rear direction 8). And a projecting portion 118B projecting to the end.

  The elastic portion 117A is elastically deformed in a direction in which the protruding portion 117B is displaced in the left-right direction 9 with a connection end (an end portion on the front side in the front-rear direction 8) with the right end portion 110B as a base point. The protruding portion 117 </ b> B is engaged with the engaged portion 107 of the main body tray 100 in a state where the first intermediate tray 110 is stored in the main body tray 100. Similarly, the elastic portion 118A is elastically deformed in a direction in which the protruding portion 118B is displaced in the left-right direction 9 with the connection end (the end on the front side in the front-rear direction 8) with the left end portion 110C as a base point. The protruding portion 118 </ b> B is engaged with the engaged portion 108 of the main body tray 100 in a state where the first intermediate tray 110 is stored in the main body tray 100. The position of the first intermediate tray 110 when the protruding portion 117B is engaged with the engaged portion 107 and the protruding portion 118B is engaged with the engaged portion 108 is an example of a first storage position.

  The protruding portion 117 </ b> B of the first intermediate tray 110 located at the first storage position is located on the rear side from the top position of the engaged portion 107. Then, in the process in which the first intermediate tray 110 is pulled out from the main body tray 100 (that is, moved toward the first exposure position described later), the protruding portion 117B is formed on the inclined surface 107A by the elastic deformation of the elastic portion 117A. Along the leftward and rightward direction 9. Then, when the protruding portion 117 </ b> B gets over the top position of the engaged portion 107, the engagement between the first engaging portion 117 and the engaged portion 107 is released. Similarly, the protruding portion 118 </ b> B of the first intermediate tray 110 located at the first storage position is located on the rear side from the top position of the engaged portion 108. Then, in the process in which the first intermediate tray 110 is pulled out from the main body tray 100, the protruding portion 118B is displaced inward in the left-right direction 9 along the inclined surface 108A by elastic deformation of the elastic portion 118A. Then, when the protruding portion 118B gets over the top position of the engaged portion 108, the engagement between the first engaging portion 118 and the engaged portion 108 is released.

  On the other hand, the protruding portion 117 </ b> B of the first intermediate tray 110 that is pulled out from the main body tray 100 is located on the front side of the top position of the engaged portion 107. Then, in the process in which the first intermediate tray 110 is stored in the main body tray 100 (that is, moved toward the first storage position), the protrusion 117B moves along the inclined surface 107B by the elastic deformation of the elastic portion 117A. It is displaced inward in the left-right direction 9. Then, when the protruding portion 117B gets over the top position of the engaged portion 107, the first engaging portion 117 and the engaged portion 107 are engaged. Similarly, the protruding portion 118 </ b> B of the first intermediate tray 110 in a state pulled out from the main body tray 100 is located on the front side from the top position of the engaged portion 108. In the process in which the first intermediate tray 110 is housed in the main body tray 100, the protruding portion 118B is displaced inward in the left-right direction 9 along the inclined surface 108B by elastic deformation of the elastic portion 118A. Then, when the protruding portion 118B gets over the top position of the engaged portion 108, the first engaging portion 118 and the engaged portion 108 are engaged.

  At the right end of the central portion 110A, a protruding piece 113 that protrudes outward in the left-right direction 9 and extends in the front-rear direction 8 is provided. The protruding piece 113 is separated from the right end portion 110 </ b> B in the vertical direction 7. That is, a space is formed between the lower surface of the protruding piece 113 and the upper surface of the right end portion 110B. The first protrusion 103B of the main body tray 100 enters a space between the lower surface of the protruding piece 113 and the upper surface of the right end portion 110B. In other words, the protruding piece 113 enters the space between the lower surface of the main body tray 100 and the upper surface of the first protruding portion 103B.

  At the left end of the central portion 110A, a projecting piece 114 that protrudes outward in the left-right direction 9 and extends in the front-rear direction 8 is provided. The protruding piece 114 is separated from the left end portion 110 </ b> C in the vertical direction 7. That is, a space is formed between the lower surface of the protruding piece 114 and the upper surface of the left end portion 110C. The second protrusion 104B of the main body tray 100 enters a space between the lower surface of the protruding piece 114 and the upper surface of the left end portion 110C. In other words, the protruding piece 114 enters the space between the lower surface of the main body tray 100 and the upper surface of the second protruding portion 104B.

  On the upper surface of the first intermediate tray 110, slits 115 and 116 are formed, each extending in the front-rear direction 8 and spaced apart from each other in the left-right direction 9. The slits 115 and 116 are disposed at positions that are symmetrical with respect to the center of the first intermediate tray 110 in the left-right direction 9 (one-dot chain line in FIG. 12A). A wall surface defining the right end of the slit 115 is provided with a flange portion 115 </ b> A that protrudes inward (leftward) in the left-right direction 9 from the wall surface and extends in the front-rear direction 8. The flange portion 115 </ b> A covers a part above the slit 115. Similarly, a wall surface defining the left end of the slit 116 is provided with a flange portion 116A that protrudes inward (rightward) in the left-right direction 9 from the wall surface and extends in the front-rear direction 8. The flange portion 116 </ b> A covers a part above the slit 116.

  The flange portion 115A covers the region on the right side of the slit 115 from above. That is, when the cross section of the slit 115 including the vertical direction 7 and the horizontal direction 9 is viewed from the front side, it is L-shaped. The third rail portion 105 of the main body tray 100 is inserted into the slit 115. More specifically, the third rib 105A of the third rail portion 105 enters the space of the slit 115 that is not covered with the flange portion 115A, and the third rail portion 105 enters the space of the slit 115 covered with the flange portion 115A. The 3rd protrusion part 105B approachs. In other words, the flange 115A enters the space between the lower surface of the main body tray 100 and the upper surface of the third protrusion 105B.

  The flange portion 116A covers the left region of the slit 116 from above. That is, when the cross section of the slit 116 including the vertical direction 7 and the horizontal direction 9 is viewed from the front side, it is an inverted L shape. The fourth rail portion 106 of the main body tray 100 is inserted through the slit 116. More specifically, the fourth rib 106A of the fourth rail portion 106 enters the space of the slit 116 not covered with the flange portion 116A, and the fourth rail portion 106 enters the space of the slit 116 covered with the flange portion 116A. The fourth protrusion 106B enters. In other words, the flange portion 116A enters the space between the lower surface of the main body tray 100 and the upper surface of the fourth protrusion 106B.

  A part of the rear end side of the slit 115 is not covered with the flange 115A. And in the area | region of the rear end side of the slit 115 which is not covered with the collar part 115A, the convex part 115B which protrudes upwards in the up-down direction 7 is provided in the wall surface which demarcates the back surface (bottom surface) of the slit 115. Yes. The convex portion 115B has a substantially triangular cross section including the up-down direction 7 and the front-rear direction 8, and has a shape that tapers upward. The convex portions 115 </ b> B are disposed at positions corresponding to the pair of convex portions 105 </ b> C of the main body tray 100 in the left-right direction 9. Similarly, a part of the rear end side of the slit 116 is not covered with the flange portion 116A. And in the area | region of the rear end side of the slit 116 which is not covered with the collar part 116A, the convex part 116B which protrudes upwards in the up-down direction 7 is provided in the wall surface which demarcates the back surface (bottom surface) of the slit 116. Yes. The cross section including the up-down direction 7 and the front-rear direction 8 is substantially triangular, and the convex portion 116B has a shape that tapers upward. The convex portions 116 </ b> B are disposed at positions corresponding to the pair of convex portions 106 </ b> C of the main body tray 100 in the left-right direction 9.

  When the first intermediate tray 110 is pulled out to the maximum extent from the main body tray 100, the convex portion 115B enters a recess between the pair of convex portions 105C of the main body tray 100, and connects the main body tray 100 and the first intermediate tray 110. Position in the front-rear direction 8. Similarly, the convex portion 116B enters the recess between the pair of convex portions 106C of the main body tray 100 when the first intermediate tray 110 is pulled out to the maximum extent from the main body tray 100, and the main tray 100 and the first intermediate tray. 110 is positioned in the front-rear direction 8. The position of the first intermediate tray 110 when the protrusion 115B enters the recess between the pair of protrusions 105C of the main body tray 100 and the protrusion 116B enters the recess between the pair of protrusions 106C of the main body tray 100 is as follows. It is an example of a 1st exposure position. The overlapping area of the main body tray 100 and the first intermediate tray 110 at the first exposure position is smaller than the overlapping area of the main body tray 100 and the first intermediate tray 110 at the first storage position.

  As in the above configuration, the protrusion 113 is the first protrusion 103B, the protrusion 114 is the second protrusion 104B, the flange 115A is the third protrusion 105B, and the flange 116A is the fourth protrusion 106B. By being supported so as to be movable in the front-rear direction 8, the first intermediate tray 110 is movable with respect to the main body tray 100 between the first storage position and the first exposure position. That is, the first intermediate tray 110 is supported by the main body tray 100 so as to be movable between a first storage position and a first exposure position separated in the front-rear direction 8.

  A lower surface of the first intermediate tray 110 is provided with a fifth rail portion 123, a sixth rail portion 124, a seventh rail portion 125, and an eighth rail portion 126, each extending along the front-rear direction 8. The fifth rail portion 123, the sixth rail portion 124, the seventh rail portion 125, and the eighth rail portion 126 are provided at positions separated in the left-right direction 9 on the lower surface of the first intermediate tray 110. The fifth rail portion 123 and the sixth rail portion 124 are disposed outside the first intermediate tray 110 in the left-right direction 9 with respect to the seventh rail portion 125 and the eighth rail portion 126. The center position of the fifth rail portion 123 and the sixth rail portion 124 in the left-right direction 9, the center position of the seventh rail portion 125 and the eighth rail portion 126 in the left-right direction 9, and the first intermediate tray in the left-right direction 9 The center position of 110 coincides with the one-dot chain line in FIG.

  The fifth rail portion 123 has a fifth protruding portion 123B that protrudes leftward from the left end of the right end portion 110B and extends in the front-rear direction 8 on the lower surface side of the first intermediate tray 110. The lower surface of the first intermediate tray 110 (more specifically, the central portion 110A) and the upper surface of the fifth protruding portion 123B are spaced apart in the vertical direction 7. That is, a space is formed between the lower surface of the first intermediate tray 110 and the upper surface of the fifth protrusion 123B.

  The sixth rail portion 124 has a sixth projecting portion 124B that projects rightward from the right end of the left end portion 110C and extends in the front-rear direction 8 on the lower surface side of the first intermediate tray 110. The lower surface of the first intermediate tray 110 (more specifically, the central portion 110A) and the upper surface of the sixth projecting portion 124B are spaced apart in the vertical direction 7. That is, a space is formed between the lower surface of the first intermediate tray 110 and the upper surface of the sixth protrusion 124B.

  The seventh rail portion 125 includes a seventh rib 125A and a seventh projecting portion 125B. The seventh rib 125 </ b> A protrudes downward from the lower surface of the first intermediate tray 110 and extends in the front-rear direction 8. The seventh projecting portion 125 </ b> B projects rightward from the right surface of the seventh rib 125 </ b> A in the left-right direction 9 and extends in the front-rear direction 8. The lower surface of the first intermediate tray 110 and the upper surface of the seventh protrusion 125B are spaced apart in the vertical direction 7. That is, a space is formed between the lower surface of the first intermediate tray 110 and the upper surface of the seventh protrusion 125B. Furthermore, a convex portion 125C that projects downward is provided on the lower surface of the seventh projecting portion 125B.

  The eighth rail portion 126 includes an eighth rib 126A and an eighth protrusion 126B. The eighth rib 126A protrudes downward from the lower surface of the first intermediate tray 110 and extends in the front-rear direction 8. The eighth protrusion 126 </ b> B protrudes leftward from the left surface of the eighth rib 126 </ b> A in the left-right direction 9 and extends in the front-rear direction 8. The lower surface of the first intermediate tray 110 and the upper surface of the eighth protrusion 126 </ b> B are spaced apart in the vertical direction 7. That is, a space is formed between the lower surface of the first intermediate tray 110 and the upper surface of the eighth protrusion 126B. Furthermore, a convex portion 126C that projects downward is provided on the lower surface of the eighth projecting portion 126B.

[Second intermediate tray 130]
As shown in FIG. 13, the second intermediate tray 130 has a rectangular flat plate shape whose outer dimension in the left-right direction 9 is longer than the outer dimension in the front-rear direction 8. The external dimensions of the second intermediate tray 130 in the left-right direction 9 are substantially the same as the external dimensions of the main body tray 100 and the first intermediate tray 110 in the left-right direction 9. However, strictly speaking, the outer dimension of the second intermediate tray 130 in the left-right direction 9 is slightly shorter than the outer dimension of the main body tray 100 in the left-right direction 9 and is substantially the same as the outer dimension of the first intermediate tray 110 in the left-right direction 9. It is. The upper surface of the second intermediate tray 130 is a substantially flat surface along the front-rear direction 8 and the left-right direction 9. A rectangular notch 132 is formed at the front end of the second intermediate tray 130 in the front-rear direction 8 and at the center in the left-right direction 9. The notch 132 is provided at a position that overlaps the notch 112 of the first intermediate tray 110 in the vertical direction 7 in a state where the second intermediate tray 130 is stored below the first intermediate tray 110.

  The second intermediate tray 130 has a central portion 130A located at the center in the left-right direction 9, and a right end portion 130B and a left end portion 130C located on both sides in the left-right direction 9. The right end portion 130B and the left end portion 130C are unevenly distributed downward in the vertical direction 7 from the central portion 130A. That is, a step in the vertical direction 7 is formed at the boundary portion between the central portion 130A and the left end portion 130C. Similarly, a step in the vertical direction 7 is formed at the boundary between the central portion 130A and the left end portion 130C. The length in the front-rear direction 8 of the right end portion 130B and the left end portion 130C is shorter than the length in the front-rear direction 8 of the central portion 130A. More specifically, the rear ends of the right end portion 130B and the left end portion 130C are located in front of the rear end of the central portion 130A.

  A second engagement portion 137 is provided at the right end portion 130B. The second engagement portion 137 includes an elastic portion 137A extending rearward in the front-rear direction 8 from the rear end of the right end portion 130B, and outward in the left-right direction 9 from the tip of the elastic portion 137A (the end portion on the rear side in the front-rear direction 8). And a projecting portion 137B projecting to the back. Similarly, a second engagement portion 138 is provided at the left end portion 130C. The second engaging portion 138 includes an elastic portion 138A extending rearward in the front-rear direction 8 from the rear end of the left end portion 130C, and an outer side in the left-right direction 9 from the tip of the elastic portion 138A (end on the rear side in the front-rear direction 8). And a projecting portion 138B projecting to the back.

  The elastic portion 137A is elastically deformed in a direction in which the protruding portion 137B is displaced in the left-right direction 9 with a connection end (an end portion on the front side in the front-rear direction 8) with the right end portion 130B as a base point. The protruding portion 137 </ b> B is engaged with the engaged portion 107 of the main body tray 100 in a state where the second intermediate tray 130 is stored in the main body tray 100 and the first intermediate tray 110. Similarly, the elastic portion 138A elastically deforms in a direction in which the protruding portion 138B is displaced in the left-right direction 9 with the connection end (the end portion on the front side in the front-rear direction 8) with the left end portion 130C as a base point. The protruding portion 138 </ b> B is engaged with the engaged portion 108 of the main body tray 100 in a state where the second intermediate tray 130 is stored in the main body tray 100 and the first intermediate tray 110. The position of the second intermediate tray 130 when the protruding portion 137B is engaged with the engaged portion 107 and the protruding portion 138B is engaged with the engaged portion 108 is an example of a second storage position.

  The protruding portion 137B of the second intermediate tray 130 located at the second storage position is located on the rear side from the top position of the engaged portion 107. Then, in the process in which the second intermediate tray 130 is pulled out from the main body tray 100 and the first intermediate tray 110 (that is, moved toward the second exposure position described later), the protruding portion 137B is elastic of the elastic portion 137A. Due to the deformation, it is displaced inward in the left-right direction 9 along the inclined surface 107A. Then, when the protruding portion 137B gets over the top position of the engaged portion 107, the engagement between the second engaging portion 137 and the engaged portion 107 is released. Similarly, the protruding portion 138 </ b> B of the second intermediate tray 130 located at the second storage position is located on the rear side from the top position of the engaged portion 108. Then, in the process in which the second intermediate tray 130 is pulled out from the main body tray 100 and the first intermediate tray 110, the protruding portion 138B is displaced inward in the left-right direction 9 along the inclined surface 108A by elastic deformation of the elastic portion 138A. . Then, when the protruding portion 138B gets over the top position of the engaged portion 108, the engagement between the second engaging portion 138 and the engaged portion 108 is released.

  On the other hand, the protruding portion 137 </ b> B of the second intermediate tray 130 that is pulled out from the main body tray 100 and the first intermediate tray 110 is positioned on the front side from the top position of the engaged portion 107. In the process in which the second intermediate tray 130 is stored in the main tray 100 and the first intermediate tray 110 (that is, moved toward the second storage position), the protruding portion 137B is caused by elastic deformation of the elastic portion 137A. It is displaced inward in the left-right direction 9 along the inclined surface 107A. Then, when the protruding portion 137B gets over the top position of the engaged portion 107, the second engaging portion 137 and the engaged portion 107 are engaged. Similarly, the protrusion 138 </ b> B of the second intermediate tray 130 that is pulled out from the main body tray 100 and the first intermediate tray 110 is located on the front side of the top position of the engaged portion 108. Then, in the process in which the second intermediate tray 130 is housed in the main tray 100 and the first intermediate tray 110, the protrusion 138B is displaced inward in the left-right direction 9 along the inclined surface 108A by elastic deformation of the elastic portion 138A. To do. Then, when the protruding portion 138B gets over the top position of the engaged portion 108, the second engaging portion 138 and the engaged portion 108 are engaged.

  At the right end of the central portion 130 </ b> A, a protruding piece 133 that protrudes outward (rightward) in the left-right direction 9 and extends in the front-rear direction 8 is provided. The protruding piece 133 is separated from the right end portion 130 </ b> B in the vertical direction 7. That is, a space is formed between the lower surface of the projecting piece 133 and the upper surface of the right end portion 130B. The fifth protruding portion 123B of the first intermediate tray 110 enters a space between the lower surface of the protruding piece 133 and the upper surface of the right end portion 130B. In other words, the protruding piece 133 enters the space between the lower surface of the first intermediate tray 110 and the upper surface of the fifth protrusion 123B.

  At the left end of the central portion 130 </ b> A, a protruding piece 134 that protrudes outward (leftward) in the left-right direction 9 and extends in the front-rear direction 8 is provided. The projecting piece 134 is separated from the left end portion 130 </ b> C in the vertical direction 7. That is, a space is formed between the lower surface of the projecting piece 134 and the upper surface of the left end portion 130C. The sixth projecting portion 124B of the first intermediate tray 110 enters a space between the lower surface of the projecting piece 134 and the upper surface of the left end portion 130C. In other words, the protruding piece 134 enters the space between the lower surface of the first intermediate tray 110 and the upper surface of the sixth projecting portion 124B.

  On the upper surface of the second intermediate tray 130, slits 135 and 136 are formed, each extending in the front-rear direction 8 and spaced apart from each other in the left-right direction 9. The slits 135 and 136 are disposed at positions that are symmetrical with respect to the center of the second intermediate tray 130 in the left-right direction 9 (one-dot chain line in FIG. 13A). A wall surface defining the right end of the slit 135 is provided with a flange portion 135A that protrudes inward (leftward) in the left-right direction 9 and extends in the front-rear direction 8 from the wall surface. The flange portion 135 </ b> A covers a part above the slit 135. Similarly, a wall surface defining the left end of the slit 136 is provided with a flange 136A that protrudes inward (rightward) in the left-right direction 9 from the wall surface and extends in the front-rear direction 8. The flange portion 136A covers a part of the slit 136 above.

  The flange portion 135A covers the region on the right side of the slit 135 from above. That is, when the cross section of the slit 135 including the vertical direction 7 and the horizontal direction 9 is viewed from the front side, it is L-shaped. The seventh rail portion 125 of the second intermediate tray 130 is inserted into the slit 135. More specifically, the seventh rib 125A of the seventh rail portion 125 enters the space of the slit 135 not covered with the flange portion 135A, and the seventh rail portion 125 enters the space of the slit 135 covered with the flange portion 135A. The seventh protrusion 125B enters. In other words, the collar portion 135A enters the space between the lower surface of the first intermediate tray 110 and the upper surface of the seventh protrusion 125B.

  The collar portion 136A covers the region on the left side of the slit 136 from above. That is, when the cross section of the slit 136 including the vertical direction 7 and the horizontal direction 9 is viewed from the front side, it is an inverted L shape. The eighth rail portion 126 of the first intermediate tray 110 is inserted through the slit 136. More specifically, the eighth rib 126A of the eighth rail portion 126 enters the space of the slit 136 not covered with the flange portion 136A, and the eighth rail portion 126 enters the space of the slit 136 covered with the flange portion 136A. The eighth protrusion 126B enters. In other words, the flange 136A enters the space between the lower surface of the first intermediate tray 110 and the upper surface of the eighth protrusion 126B.

  A part of the rear end side of the slit 135 is not covered with the flange portion 135A. And in the area | region of the rear-end side of the slit 135 which is not covered with the collar part 135A, the convex part 135B which protrudes upwards in the up-down direction 7 is provided in the wall surface which demarcates the back surface (bottom surface) of the slit 135. Yes. The cross section including the up-down direction 7 and the front-rear direction 8 is substantially triangular, and the convex portion 135B has a shape that tapers upward. The convex portion 135B is disposed at a position corresponding to the convex portion 125C of the first intermediate tray 110 in the left-right direction 9. Similarly, a part of the rear end side of the slit 136 is not covered with the flange portion 136A. And in the area | region of the rear-end side of the slit 136 which is not covered with the collar part 136A, the convex part 136B which protrudes upwards in the up-down direction 7 is provided in the wall surface which demarcates the back surface (bottom surface) of the slit 136. Yes. The cross section including the up-down direction 7 and the front-rear direction 8 is substantially triangular, and the convex portion 136B has a shape that tapers upward. The convex portion 136B is disposed at a position corresponding to the convex portion 126C of the first intermediate tray 110 in the left-right direction 9.

  The convex portion 135B is engaged with the convex portion 125C of the first intermediate tray 110 when the second intermediate tray 130 is pulled out from the first intermediate tray 110 to the maximum, so that the first intermediate tray 110 and the second intermediate tray 130 are engaged. Are positioned in the front-rear direction 8. Similarly, the convex portion 136B is engaged with the convex portion 126C of the first intermediate tray 110 when the second intermediate tray 130 is pulled out from the first intermediate tray 110 to the maximum, and the first intermediate tray 110 and the second intermediate tray 110 are engaged with each other. The intermediate tray 130 is positioned in the front-rear direction 8. The position of the second intermediate tray 130 when the convex portion 135B is engaged with the convex portion 125C of the first intermediate tray 110 and the convex portion 136B is engaged with the convex portion 126C of the first intermediate tray 110 is the second exposure. It is an example of a position. The overlapping area of the first intermediate tray 110 and the second intermediate tray 130 at the second exposure position is smaller than the overlapping area of the first intermediate tray 110 and the second intermediate tray 130 at the second storage position.

  As in the above configuration, the protrusion 133 is the fifth protrusion 123B, the protrusion 134 is the sixth protrusion 124B, the flange 135A is the seventh protrusion 125B, and the flange 136A is the eighth protrusion 126B. By being supported so as to be movable in the front-rear direction 8, the second intermediate tray 130 is movable with respect to the first intermediate tray 110 between the second storage position and the second exposure position. That is, the second intermediate tray 130 is supported by the first intermediate tray 110 so as to be movable between a second storage position and a second exposure position separated in the front-rear direction 8.

  Engaged portions 143 and 144 are provided on the lower surface of the second intermediate tray 130. The engaged portion 143 is provided at a step portion at the boundary between the central portion 130A and the right end portion 130B. That is, the engaged portion 143 is provided at a position adjacent to both the lower surface of the central portion 130A and the left surface of the right end portion 130B. In a state in which the main body tray 100, the first intermediate tray 110, and the second intermediate tray 130 are assembled, the engaged portion 143 of the second intermediate tray 130 is more in the left-right direction 9 than the engaged portion 107 of the main body tray 100. It is provided on the center side. Similarly, the engaged portion 144 is provided at a step portion at the boundary between the central portion 130A and the left end portion 130C. That is, the engaged portion 144 is provided at a position adjacent to both the lower surface of the central portion 130A and the left end portion 130C. In a state in which the main body tray 100, the first intermediate tray 110, and the second intermediate tray 130 are assembled, the engaged portion 144 of the second intermediate tray 130 is more in the left-right direction 9 than the engaged portion 108 of the main body tray 100. It is provided on the center side.

  The engaged portion 143 includes a guide surface 143A, a first inclined surface 143B, a second inclined surface 143C, and a locking piece 143D. Similarly, the engaged portion 144 includes a guide surface 144A, a first inclined surface 144B, a second inclined surface 144C, and a locking piece 144D. The guide surface 143 </ b> A and the guide surface 144 </ b> A are surfaces facing the inside of the second intermediate tray 130 in the left-right direction 9. That is, the guide surface 143 </ b> A and the guide surface 144 </ b> A are surfaces that face each other in the left-right direction 9. The first inclined surface 143 </ b> B and the first inclined surface 144 </ b> B are surfaces facing the inside of the second intermediate tray 130 in the left-right direction 9. That is, the first inclined surface 143 </ b> B and the first inclined surface 144 </ b> B are surfaces that face each other in the left-right direction 9. Furthermore, the second inclined surface 143 </ b> C and the second inclined surface 144 </ b> C are surfaces facing the inside of the second intermediate tray 130 in the left-right direction 9. That is, the second inclined surface 143 </ b> C and the second inclined surface 144 </ b> C are surfaces that face each other in the left-right direction 9.

  The guide surfaces 143 </ b> A and 144 </ b> A are surfaces that extend along the front-rear direction 8. That is, the distance between the guide surface 143A and the guide surface 144A in the left-right direction 9 is substantially constant in the front-rear direction 8. The first inclined surface 143B is a surface extending rearward from the rear end of the guide surface 143A. Similarly, the first inclined surface 144B is a surface extending rearward from the rear end of the guide surface 144A. Further, the first inclined surface 143B and the first inclined surface 144B are surfaces inclined in a direction away from each other toward the rear in the front-rear direction 8 (that is, outside the second intermediate tray 130 in the left-right direction 9).

  The second inclined surface 143C is a surface extending forward from the front end of the guide surface 143A. Similarly, the second inclined surface 144C is a surface extending forward from the front end of the guide surface 144A. The second inclined surface 143 </ b> C and the second inclined surface 144 </ b> C are surfaces that are inclined in directions away from each other toward the front in the front-rear direction 8. The locking piece 143D is a portion that protrudes from the front end of the second inclined surface 143C to the inside of the second intermediate tray 130. Similarly, the engagement piece 144D is a portion that protrudes from the front end of the second inclined surface 144C to the inside of the second intermediate tray 130. That is, the locking piece 143D and the locking piece 144D protrude in a direction approaching each other (that is, inside the second intermediate tray 130 in the left-right direction 9).

  A ninth rail portion 145 and a tenth rail portion 146 each extending along the front-rear direction 8 are provided on the lower surface of the second intermediate tray 130. The ninth rail portion 145 and the tenth rail portion 146 are provided at positions spaced apart in the left-right direction 9 on the lower surface of the second intermediate tray 130. The center positions of the ninth rail portion 145 and the tenth rail portion 146 in the left-right direction 9 coincide with the center position of the second intermediate tray 130 in the left-right direction 9 (the chain line in FIG. 13B). Further, the second intermediate tray 130 is provided with ribs 147 that protrude downward from the rear end thereof and extend in the left-right direction 9.

  The ninth rail portion 145 includes a ninth rib 145A and a ninth protruding portion 145B. The ninth rib 145 </ b> A protrudes downward from the lower surface of the second intermediate tray 130 and extends in the front-rear direction 8. The ninth protruding portion 145B protrudes rightward from the right surface of the ninth rib 145A in the left-right direction 9 and extends in the front-rear direction 8. The lower surface of the second intermediate tray 130 and the upper surface of the ninth projecting portion 145B are spaced apart in the vertical direction 7. That is, a space is formed between the lower surface of the second intermediate tray 130 and the upper surface of the ninth protrusion 145B. Further, a convex portion 145C projecting downward is provided on the lower surface of the ninth projecting portion 145B.

  The tenth rail portion 146 includes a tenth rib 146A and a tenth protruding portion 146B. The tenth rib 146A protrudes downward from the lower surface of the second intermediate tray 130 and extends in the front-rear direction 8. The tenth protrusion 146 </ b> B protrudes leftward from the left surface of the tenth rib 146 </ b> A in the left-right direction 9 and extends in the front-rear direction 8. The lower surface of the second intermediate tray 130 and the upper surface of the tenth protrusion 146 </ b> B are spaced apart in the vertical direction 7. That is, a space is formed between the lower surface of the second intermediate tray 130 and the upper surface of the tenth protrusion 146B. Furthermore, a convex portion 146C projecting downward is provided on the lower surface of the tenth projecting portion 146B.

[Third intermediate tray 150]
As shown in FIG. 14, the third intermediate tray 150 has a rectangular flat plate shape whose outer dimension in the left-right direction 9 is longer than the outer dimension in the front-rear direction 8. The outer dimension in the left-right direction 9 of the third intermediate tray 150 is substantially the same as the outer dimension in the left-right direction 9 of the central portion 130 </ b> A of the second intermediate tray 130. That is, the outer dimension in the left-right direction 9 of the third intermediate tray 150 is smaller than the outer dimension in the left-right direction 9 of the second intermediate tray 130. The upper surface of the third intermediate tray 150 is a substantially flat surface along the front-rear direction 8 and the left-right direction 9.

  On the upper surface of the third intermediate tray 150, a substantially rectangular recess 151 is provided at the front end in the front-rear direction 8 and at the center in the left-right direction 9. The recess 151 is exposed from the second intermediate tray 130 in a state where the third intermediate tray 150 is pulled out from the second intermediate tray 130 (that is, the third intermediate tray 150 is positioned at a third exposure position described later). It is provided at a position. The recess 151 is a space in which the rotating tray 160 is accommodated. Therefore, the recess 151 is slightly larger than the outer shape of the rotating tray 160 and slightly deeper than the thickness of the rotating tray 160 in the vertical direction 7. In addition, a pair of bearing portions 152 are provided at the front end portion of the third intermediate tray 150 in the front-rear direction 8 and outside the recessed portion 151 in the left-right direction 9. The pair of bearing portions 152 rotatably supports a pair of support shafts 161 of a rotation tray 160 described later.

  On the lower surface of the third intermediate tray 150, a pair of slits 153 extending in the front-rear direction 8 at both ends in the left-right direction 9 are provided. The third intermediate tray 150 is provided with a rib 154 that protrudes downward from the front end and extends in the left-right direction 9. The front ends of the pair of slits 153 are closed by ribs 154. On the other hand, the rear ends of the pair of slits 153 are open. In a state where the discharge tray 21 is positioned at the lying down position, the pair of slits 153 are arranged at positions facing the first protrusion 84 and the second protrusion 85. That is, the first protrusion 84 and the second protrusion are disposed inside the slit 153 of the discharge tray 21 in the lying position. Then, when one of the feeding tray 20 and the discharge tray 21 is extended or contracted in a state where the discharge tray 21 is located at the lying position, the first protrusion 84 and the second protrusion 85 cause the inside of the slit 153 to move in the front-rear direction. Move to 8.

  Third engaging portions 157 and 158 are provided at both ends in the left-right direction 9 of the third intermediate tray 150. In the left-right direction 9, the third engagement portion 157 is provided inside the discharge tray 21 from the first engagement portion 117 of the first intermediate tray 110 and the second engagement portion 137 of the second intermediate tray. Similarly, in the left-right direction 9, the third engagement portion 158 is provided inside the discharge tray 21 from the first engagement portion 118 of the first intermediate tray 110 and the second engagement portion 138 of the second intermediate tray. Yes.

  The third engagement portion 157 protrudes outward in the left-right direction 9 from the elastic portion 157A extending forward and outward of the third intermediate tray 150 and the tip of the elastic portion 157A (the front end portion in the front-rear direction 8). And a projecting portion 157B. The elastic portion 157A elastically deforms in the direction in which the protruding portion 157B is displaced in the left-right direction 9 with the end on the rear side in the front-rear direction 8 as a base point. The protruding portion 157B is engaged with the engaged portion 143 of the second intermediate tray 130. Similarly, the third engagement portion 158 includes an elastic portion 158A that extends forward and outward from the third intermediate tray 150, and an outer end in the left-right direction 9 from the tip of the elastic portion 158A (the front end in the front-rear direction 8). And a projecting portion 158B projecting in the direction. The elastic portion 158A elastically deforms in the direction in which the protruding portion 158B is displaced in the left-right direction 9 with the end on the rear side in the front-rear direction 8 as a base point. The protruding portion 158B is engaged with the engaged portion 144 of the second intermediate tray 130.

  The protruding portion 157B of the third intermediate tray 150 accommodated in the second intermediate tray 130 faces the first inclined surface 143B of the engaged portion 143 in the left-right direction 9. That is, in the above state, the protrusion 157B and the first inclined surface 143B are engaged. The engaging force between the protruding portion 157B and the first inclined surface 143B is set to be weaker than the engaging force between the second engaging portion 137 and the engaged portion 107. Similarly, the protruding portion 158B of the third intermediate tray 150 housed in the second intermediate tray 130 faces the first inclined surface 144B of the engaged portion 144 in the left-right direction 9. That is, in the above state, the protrusion 158B and the first inclined surface 144B are engaged. The engaging force between the protruding portion 158B and the first inclined surface 144B is set to be weaker than the engaging force between the second engaging portion 138 and the engaged portion 108. The “engagement force” in the present specification refers to a force necessary for releasing the engagement. The position of the third intermediate tray 150 when the protrusion 157B is engaged with the first inclined surface 143B and the protrusion 158B is engaged with the first inclined surface 144B is an example of a third storage position.

  When the third intermediate tray 150 in the third storage position is pulled out from the second intermediate tray 130, the protruding portion 157B is displaced inward in the left-right direction 9 along the first inclined surface 143B by elastic deformation of the elastic portion 157A. It is guided to the guide surface 143A in a displaced state. Further, when the third intermediate tray 150 is pulled out from the second intermediate tray 130, the protruding portion 157B is displaced outward in the left-right direction 9 along the second inclined surface 143C, so that the elastic portion 157A is elastically returned to the original position. To do. Similarly, when the third intermediate tray 150 in the third storage position is pulled out from the second intermediate tray 130, the protruding portion 158B moves inward in the left-right direction 9 along the first inclined surface 144B due to elastic deformation of the elastic portion 158A. It is displaced and guided to the guide surface 144A in a displaced state. When the third intermediate tray 150 is further pulled out from the second intermediate tray 130, the protruding portion 158B is displaced outward in the left-right direction 9 along the second inclined surface 144C, so that the elastic portion 158A is elastically returned to the original position. To do. Further, in the position where the protruding portion 157B is locked to the locking piece 143D and the protruding portion 158B is locked to the locking piece 144D, further pulling of the third intermediate tray 150 from the second intermediate tray 130 is restricted. Is done.

  On the upper surface of the third intermediate tray 150, concave grooves 155 and 156 extending from the rear end of the front-rear direction 8 along the front-rear direction 8 are formed. The concave grooves 155 and 156 are arranged at positions symmetrical with respect to the center of the third intermediate tray 150 in the left-right direction 9. A wall surface defining the right end of the groove 155 is provided with a flange portion 155A that protrudes inward (leftward) in the left-right direction 9 from the wall surface and extends in the front-rear direction 8. Similarly, a wall surface that defines the left end of the groove 156 is provided with a flange portion 156A that protrudes inward (rightward) in the left-right direction 9 from the wall surface and extends in the front-rear direction 8.

  The flange portion 155A covers the region on the right side of the groove 155 from above. That is, when the cross section of the concave groove 155 including the vertical direction 7 and the horizontal direction 9 is viewed from the front side, it is L-shaped. The ninth rail portion 145 of the second intermediate tray 130 is inserted into the concave groove 155. More specifically, the ninth rib 145A of the ninth rail portion 145 enters the space of the concave groove 155 not covered with the flange portion 155A, and the ninth rail portion enters the space of the concave groove 155 covered with the flange portion 155A. 145 of 9th protrusion part 145B approachs. In other words, the flange portion 155A enters the space between the lower surface of the second intermediate tray 130 and the upper surface of the ninth protrusion 145B.

  The flange portion 156A covers the region on the left side of the groove 156 from above. That is, when the cross section of the groove 156 including the up-down direction 7 and the left-right direction 9 is viewed from the front side, it is an inverted L-shape. The tenth rail portion 146 of the second intermediate tray 130 is inserted into the concave groove 156. More specifically, the tenth rib 146A of the tenth rail portion 146 enters the space of the concave groove 156 not covered with the flange portion 156A, and the tenth rail portion is inserted into the space of the concave groove 156 covered with the flange portion 156A. The tenth protrusion 146B of 146 enters. In other words, the flange portion 156A enters the space between the lower surface of the first intermediate tray 110 and the upper surface of the tenth protrusion 146B.

  A part of the rear end side of the concave groove 155 is not covered with the flange portion 155A. And in the area | region of the rear-end side of the ditch | groove 155 which is not covered with the collar part 155A, the convex part 155B which protrudes upwards in the up-down direction 7 is provided in the wall surface which demarcates the back surface (bottom face) of the ditch | groove 155. It has been. The convex portion 155B has a substantially triangular cross section including the up-down direction 7 and the front-rear direction 8, and has a shape that tapers upward. Similarly, a part of the rear end side of the groove 156 is not covered with the flange portion 156A. And in the area | region of the rear-end side of the ditch | groove 156 which is not covered with the collar part 156A, the convex part 156B which protrudes upwards in the up-down direction 7 is provided in the wall surface which demarcates the back surface (bottom face) of the ditch | groove 156. It has been. The convex portion 156B has a substantially triangular cross section including the up-down direction 7 and the front-rear direction 8, and has a shape that tapers upward. In the left-right direction 9, the convex portion 155B is disposed at a position corresponding to the convex portion 145C of the second intermediate tray 130, and the convex portion 156B is disposed at a position corresponding to the convex portion 146C of the second intermediate tray 130.

  The convex portion 135 </ b> B is engaged with the convex portion 145 </ b> C of the second intermediate tray 130 when the third intermediate tray 150 is pulled out from the second intermediate tray 130 to the maximum, so that the second intermediate tray 130 and the third intermediate tray 150 are engaged. Are positioned in the front-rear direction 8. Similarly, the convex portion 135B is engaged with the convex portion 146C of the second intermediate tray 130 when the third intermediate tray 150 is pulled out from the second intermediate tray 130 to the maximum, so that the second intermediate tray 130 and the third intermediate tray 130 The intermediate tray 150 is positioned in the front-rear direction 8. The position of the third intermediate tray 150 when the convex portion 155B is engaged with the convex portion 145C of the second intermediate tray 130 and the convex portion 156B is engaged with the convex portion 146C of the second intermediate tray 130 is the third exposure. It is an example of a position. The overlapping area of the second intermediate tray 130 and the third intermediate tray 150 at the third exposure position is smaller than the overlapping area of the second intermediate tray 130 and the third intermediate tray 150 at the third storage position.

[Rotating tray 160]
As shown in FIG. 15, the rotating tray 160 has a rectangular flat plate shape whose outer dimension in the left-right direction 9 is longer than the outer dimension in the front-rear direction 8. The outer dimension in the left-right direction 9 of the rotating tray 160 is shorter than the outer dimension in the left-right direction 9 of the third intermediate tray 150 and slightly shorter than the outer dimension in the left-right direction 9 of the recess 151 of the third intermediate tray 150. A pair of support shafts 161 projecting outward in the left-right direction 9 are provided on both sides of the rotating tray 160 in the left-right direction 9. The pair of support shafts 161 are respectively supported by the pair of bearing portions 152 of the third intermediate tray 150, so that the rotation tray 160 can rotate with respect to the third intermediate tray 150.

  The rotating tray 160 rotates between an overlapping position that overlaps the upper surface of the third intermediate tray 150 and a protruding position that protrudes from the third intermediate tray 150 toward the discharge direction 18. Note that the rotation tray 160 at the protruding position does not have to be strictly parallel to the discharge direction 18. For example, the rotating tray 160 at the protruding position may protrude forward and upward of the third intermediate tray 150, as shown in FIG. That is, the rotation tray 160 at the overlapping position only needs to be positioned upstream of the rotation direction from the rotation base end in the discharge direction 18. On the other hand, the rotation tray 160 at the protruding position only needs to be located at the downstream end of the discharge direction 18 from the rotation base end.

  In the discharge tray 21 configured as described above, the first intermediate tray 110 is positioned at the first storage position, the second intermediate tray 130 is positioned at the second storage position, the third intermediate tray 150 is positioned at the third storage position, When the rotating tray 160 is positioned at the overlapping position, as shown in FIG. 16, the first engaging portion 118 and the second engaging portion 138 are engaged with the engaged portion 108 in a state adjacent to the vertical direction 7. Combined. In addition, although illustration is abbreviate | omitted, the 1st engaging part 117 and the 2nd engaging part 137 are also engaged with the to-be-engaged part 107 in the state adjacent to the up-down direction 7. FIG. On the other hand, the third engaging portion 158 is engaged with the first inclined surface 144B of the engaged portion 144. Although illustration is omitted, the third engagement portion 157 is also engaged with the first inclined surface 143B of the engaged portion 143. That is, the first intermediate tray 110 and the second intermediate tray 130 are engaged with the main body tray 100, and the third intermediate tray 150 is engaged with the second intermediate tray 130.

  Next, when the user grasps the third intermediate tray 150 and pulls it out from the second intermediate tray 130, the engagement between the third engaging portion 157 and the first inclined surface 143B is released as shown in FIG. The third engaging portion 157 is locked to the locking piece 143D at the third exposed position. In addition, although illustration is abbreviate | omitted, engagement with the 3rd engaging part 158 and the 1st inclined surface 144B is also cancelled | released, and the 3rd engaging part 158 is latched by the locking piece 144D in a 3rd exposure position. When the third intermediate tray 150 is further pulled out in this state, the engagement between the second engaging portion 137 and the engaged portion 107 is released. Although illustration is omitted, the engagement between the second engaging portion 138 and the engaged portion 108 is also released. As a result, the second intermediate tray 130 is pulled out from the first intermediate tray 110.

  When the above operation is performed in a state where the second tray 72 is located at the first position and the discharge tray 21 is located at the lying position, the ribs of the second intermediate tray 130 are shown in FIG. 147 is locked to the first protrusion 84, and further drawing of the second intermediate tray 130 is restricted. The position of the second intermediate tray when the wall surface on the downstream side of the discharge direction 18 of the rib 147 contacts the first protrusion 84 is an example of a midway position. The midway position is located between the second storage position and the second exposure position in the front-rear direction 8.

  The second tray 72 is located at the first position, the first intermediate tray 110 is located at the first storage position, the second intermediate tray 130 is located at the midway position, and the third intermediate tray 150 is located at the third exposed position. Then, the discharge tray 21 when the rotating tray 160 is located at the protruding position is in the state shown in FIGS. 5 and 18A. The discharge tray 21 can support A4 size recording paper in the state shown in FIGS. 5 and 18A. More specifically, the discharge tray 21 shown in FIGS. 5 and 18A can support A4 size recording paper whose longitudinal direction is in the left-right direction 9.

  On the other hand, when the second tray 72 is pulled out from the first tray 71 in the state shown in FIG. 4A, the rib 154 of the third intermediate tray 150 is locked to the second protrusion 85. That is, the wall surface on the upstream side of the discharge direction 18 of the rib 154 comes into contact with the second protrusion 85. When the second tray 72 is further pulled out in this state, the third intermediate tray 150, the second intermediate tray 130, and the first intermediate tray 110 are moved from the respective storage positions in this order in conjunction with the movement of the second tray 72. Moved to the exposure position.

  The second tray 72 is located at the second position, the first intermediate tray 110 is located at the first storage position, the second intermediate tray 130 is located at the second exposure position, and the third intermediate tray 150 is located at the third exposure position. The discharge tray 21 when the rotating tray 160 is located at the protruding position is in the state shown in FIGS. 6 and 18B. The discharge tray 21 can support B4 size recording paper in the state shown in FIGS. 6 and 18B. More specifically, the discharge tray 21 shown in FIGS. 6 and 18B can support a B4 size recording sheet whose longitudinal direction faces the front-rear direction 8.

  The second tray 72 is located at the third position, the first intermediate tray 110 is located at the first exposure position, the second intermediate tray 130 is located at the second exposure position, and the third intermediate tray 150 is the third position. When the rotating tray 160 is located at the exposed position and the protruding tray 160 is located at the protruding position, the discharge tray 21 is in the state shown in FIGS. 7 and 18C. The discharge tray 21 can support A3 size recording paper in the state shown in FIGS. 7 and 18C. More specifically, the discharge tray 21 shown in FIGS. 7 and 18C can support A3 size recording paper whose longitudinal direction is the front-rear direction 8.

  Note that the upper wall defining the upper end of the space for accommodating the feeding tray 20 and the discharge tray 21 inside the housing 14 is arranged on the upper surface of the main body tray 100 in the vertical direction 7 as shown in FIG. A facing portion 14A facing the pair of provided ribs 109 is provided. The facing portion 14A is spaced apart from the pair of ribs 109 of the discharge tray 21 in the lying position in the vertical direction 7. On the other hand, in a state where the feed tray 20 and the discharge tray 21 are mounted on the casing 14 through the opening 13, if the discharge tray 21 is rotated from the lying position to the standing position, the pair of ribs 109 and the opposing portion 14A Abut. That is, the facing portion 14A is an example of a restricting portion that restricts the rotation of the discharge tray 21 from the lying position to the standing position.

  In other words, as described above, the discharge tray 21 mounted on the housing 14 reaches the position shown in FIGS. 5 and 18A in a state where the second tray 72 is located at the first position. It can only be pulled out. Further, the discharge tray 21 is shown in FIGS. 6 and 18B or in FIGS. 7 and 18C in conjunction with the second tray 72 being pulled out from the first tray 71. It is pulled out to the state.

[Operational effects of this embodiment]
According to this embodiment, for example, when the third intermediate tray 150 is held and the discharge tray 21 is extended, the third intermediate tray 150 is first pulled out from the third storage position to the third exposure position, and then the second The intermediate tray 130 is pulled out from the second storage position to the second exposure position, and finally the first intermediate tray 110 is pulled out from the first storage position to the first exposure position. That is, the intermediate trays are pulled out in a predetermined order. As a result, the discharge tray 21 can be easily expanded and contracted to a length suitable for supporting the paper 15 having a desired size.

  In the present embodiment, the engagement force between the third engagement portion 157 and the first inclined surface 143B and the engagement force between the third engagement portion 158 and the first inclined surface 144B are determined as the second engagement portion 137 and the first engagement surface 143B. Although the example in which the engaging force with the engaging portion 107 and the engaging force between the second engaging portion 138 and the engaged portion 108 are set weaker has been described, the present invention is not limited to this. For example, the engaging force between the third engaging portion 157 and the first inclined surface 143B and the engaging force between the third engaging portion 158 and the first inclined surface 144B are represented by the second engaging portion 137 and the engaged portion 107. Or an engagement force between the second engagement portion 138 and the engaged portion 108 may be set. In this case, the second intermediate tray 130, the third intermediate tray 150, and the first intermediate tray 110 are sequentially drawn from the storage positions to the exposure positions.

  In the present embodiment, the third engaging portion 157 of the third intermediate tray 150 in the third storage position is engaged with the engaged portion 143 of the second intermediate tray 130 and the third engaging portion 158 is engaged. Although the example engaged with the joint part 144 was demonstrated, it is not limited to this. For example, the third engaging portions 157 and 158 may be engaged with the main body tray 100. That is, the third engaging portions 157 and 158 of the third intermediate tray 150 in the third storage position may be engaged with the main body tray 100 or the second intermediate tray 130.

  Further, in the present embodiment, the third engagement portion is located at the center side of the discharge tray 21 in the left-right direction 9 from the engagement position with the main body tray 100 of the first engagement portions 117 and 118 and the second engagement portions 137 and 138. Although the example which engaged 143,144 with the 2nd intermediate | middle tray 130 was demonstrated, it is not limited to this. That is, the first engaging portions 117 and 118, the second engaging portions 137 and 138, and the third engaging portions 143 and 144 can be provided at arbitrary positions in the left-right direction 9.

  Further, according to the present embodiment, the rib 147 is engaged with the first protrusion 84 in the process of extending the discharge tray 21 in a state where the second tray 72 is positioned at the first position and the discharge tray 21 is positioned at the lying position. Since it is stopped, it is possible to prevent the discharge tray 21 from being extended more than necessary. That is, the multifunction machine 10 can be used in a compact state. Further, since the rotation of the discharge tray 21 inserted into the printer casing 14 from the lying down position to the standing position is restricted by the facing portion 14A, the discharge tray 21 is inserted into the printer casing 14. Further, it is possible to more effectively suppress the discharge tray 21 from being extended more than necessary.

  Further, according to the present embodiment, the ribs 154 are brought into contact with the second protrusions 84 so that the discharge tray 21 is extended in conjunction with the second tray 72 being pulled out. As a result, the discharge tray 21 is extended to a length suitable for supporting the paper 15 of a size that can be placed on the feeding tray 20. That is, the discharge tray 21 can be set to an appropriate length by a simple operation.

  Note that the discharge tray 21 inserted into the printer housing 14 does not necessarily need to be completely rotated, and may be rotated to a position where the rib 109 and the facing portion 14A abut. However, even if the rib 109 and the facing portion 14A are rotated to a position where they are in contact with each other, the protruding amount of the first protrusion 84 and the rib 147 is adjusted so that the rib 147 is locked to the first protrusion 84. Is desirable. Similarly, even if the rib 109 and the facing portion 14 </ b> A are rotated to a position where they are in contact with each other, the protruding amounts of the second protrusion 85 and the rib 154 are adjusted so that the rib 154 contacts the second protrusion 85. It is desirable.

  Further, according to the present embodiment, since the second tray 72 is reinforced by the reinforcing member 80, even if the pair of side plates 78 and the front plate 79 are formed of a thin resin plate, the deformation of the second tray 72 is suppressed. be able to. 5-7, according to the said structure, the reinforcement member 80 superimposed on a 2nd support surface is further covered with the discharge tray 21. As shown in FIG. On the other hand, since the upper surface of the first tray 72 is released, the paper 15 can be inserted into the feeding tray 20 from the first tray 71 side. That is, the reinforcing member 80 superimposed on the second support surface does not hinder the insertion of the paper 15.

  In addition, according to the present embodiment, the plurality of sheets 15 stacked on the feeding tray 20 by the inclined wall 83 </ b> A provided on the reinforcing member 80 is further downstream in the feeding direction 17 as the uppermost sheet 15 is located. It can be aligned to be on the side. Thereby, the feeding roller 25 can be brought into contact with the paper 15 at an appropriate position.

DESCRIPTION OF SYMBOLS 10 ... Multifunctional device 14 ... Printer housing 14A ... Opposite part 18 ... Discharge direction 20 ... Feed tray 21 ... Discharge tray 25 ... Feed roller 26 ... Feed Feed arm 43, 44 ... Contact member 63 ... Conveying roller pair 66 ... Discharge roller pair 71 ... First tray 72 ... Second tray 77 ... Bottom plate 77A ... Engagement Joint part 78 ... Side plate 79 ... Front plate 79B ... Retreat wall 80 ... Reinforcing member 81 ... First reinforcing part 82 ... Second reinforcing part 83 ... Connecting part 83A ... · Inclined wall 84 ··· first projection 85 ··· second projection 100 ··· body tray 107, 108, 143, 144 ··· engaged portion 110 ··· first intermediate tray 117, 118 ··· First engaging portion 130 ... second intermediate tray 137,137 ... second engaging portion 147,154 ... Ribs 157, 158... The third engaging portion

Claims (12)

A sheet conveying apparatus comprising: a conveying unit that conveys a sheet; and a discharge tray that supports a sheet conveyed by the conveying unit on an upper surface thereof,
The discharge tray is
The main unit tray,
On the lower surface side of the main body tray, the sheet discharged to the discharge tray is between a first storage position overlapping with the main body tray and a first exposure position where the overlapping area with the main body tray is smaller than the first storage position. A first intermediate tray that is supported by the main body tray so as to be movable in a first direction along a discharge direction, and has a first engaging portion that is engaged with the main body tray at the first storage position;
On the lower surface side of the first intermediate tray, the second storage position overlapping the first intermediate tray and the second exposure position where the overlapping area with the first intermediate tray is smaller than the second storage position are the first storage position. A second intermediate tray supported by the first intermediate tray so as to be movable in a direction, and having a second engaging portion engaged with the main body tray at the second storage position;
On the lower surface side of the second intermediate tray, the third storage position that overlaps with the second intermediate tray and the third exposure position in which the overlap area with the second intermediate tray is smaller than the third storage position are the first storage position. A third intermediate tray supported by the second intermediate tray so as to be movable in a direction and having a third engagement portion engaged with the main body tray at the third storage position;
The first exposure position is rotatable between a superposition position overlapping the upper surface of the third intermediate tray exposed from the second intermediate tray and a projection position protruding from the third intermediate tray toward the discharge direction at the third exposure position. And a rotation tray supported by the third intermediate tray. A sheet conveying apparatus comprising: a conveying unit that conveys a sheet; and a discharge tray that supports a sheet conveyed by the conveying unit on an upper surface thereof,
The discharge tray is
The main unit tray,
On the lower surface side of the main body tray, the sheet discharged to the discharge tray is between a first storage position overlapping with the main body tray and a first exposure position where the overlapping area with the main body tray is smaller than the first storage position. A first intermediate tray that is supported by the main body tray so as to be movable in a first direction along a discharge direction, and has a first engaging portion that is engaged with the main body tray at the first storage position;
On the lower surface side of the first intermediate tray, the second storage position overlapping the first intermediate tray and the second exposure position where the overlapping area with the first intermediate tray is smaller than the second storage position are the first storage position. A second intermediate tray supported by the first intermediate tray so as to be movable in a direction, and having a second engaging portion engaged with the main body tray at the second storage position;
On the lower surface side of the second intermediate tray, the third storage position that overlaps with the second intermediate tray and the third exposure position in which the overlap area with the second intermediate tray is smaller than the third storage position are the first storage position. direction is supported to be able to in the second intermediate tray moved to a third intermediate tray having a third engagement portion to be engaged with the upper Symbol second intermediate tray Te the third storage position smell,
The first exposure position is rotatable between a superposition position overlapping the upper surface of the third intermediate tray exposed from the second intermediate tray and a projection position protruding from the third intermediate tray toward the discharge direction at the third exposure position. A rotating tray supported by a third intermediate tray;
A feeding tray that supports a sheet conveyed by the conveying unit,
The feeding tray is
A first tray having a first support surface for supporting a sheet formed on the upper surface;
A second support surface that supports the sheet in a row with the first support surface is formed on an upper surface, and a first position where the first size sheet can be supported by the first support surface and the second support surface; A second tray that moves in the first direction with respect to the first tray between a second position where a sheet of a second size larger than the first size can be supported by the first support surface and the second support surface. And
The discharge tray is supported by the feeding tray so as to be rotatable between a lying position that covers at least a part of the second support surface and a standing position that stands up from the lying position,
The feeding tray is configured to move from the second storage position to the second exposure position in a state where the second tray is located at the first position and the discharge tray is located at the lying position. the tray has have a locking portion for locking the intermediate position between the second storage position and the second exposure position,
The sheet conveying apparatus, wherein an engagement force of the third engagement portion with respect to the second intermediate tray is weaker than an engagement force of the second engagement portion with respect to the main body tray . The third engagement portion, in the second direction perpendicular to the first direction, according to claim 2 which is arranged inside said discharge tray than the first engagement portion and the second engagement portion Sheet conveying device. A feeding tray that supports the sheet conveyed by the conveying unit;
The feeding tray is
A first tray having a first support surface for supporting a sheet formed on the upper surface;
A second support surface that supports the sheet in a row with the first support surface is formed on an upper surface, and a first position where the first size sheet can be supported by the first support surface and the second support surface; A second tray that moves in the first direction with respect to the first tray between a second position where a sheet of a second size larger than the first size can be supported by the first support surface and the second support surface. And
The discharge tray is supported by the feeding tray so as to be rotatable between a lying position that covers at least a part of the second support surface and a standing position that stands up from the lying position,
The feeding tray is configured to move from the second storage position to the second exposure position in a state where the second tray is located at the first position and the discharge tray is located at the lying position. The sheet conveying apparatus according to claim 1, further comprising a locking portion that locks the tray at a midway position between the second storage position and the second exposure position. The feeding tray moves the third intermediate tray to the second position in conjunction with the movement of the second tray from the first position to the second position in a state where the discharge tray is located at the lying position. 3 the sheet conveying device according to any one of claims 2 4 from the retracted position with the interlocking portion to move to the third exposure position. The second tray is
A substantially rectangular bottom wall having the second support surface formed on the upper surface;
A first side wall erected on the downstream end of the bottom wall in the discharge direction;
A second side wall and a third side wall that are erected at both ends of the bottom wall in a second direction orthogonal to the first direction, each connected to the first side wall;
A reinforcing member disposed at a position overlapping the second support surface,
The reinforcing member is
A first reinforcing portion capable of simultaneously contacting the inner surface of the first side wall and the inner surface of the second side wall;
The sheet conveying apparatus according to claim 5 , further comprising: a second reinforcing portion capable of simultaneously contacting the inner surface of the first side wall and the inner surface of the third side wall. The second tray rotatably supports an end portion of the main body tray on the side opposite to the side from which the first intermediate tray is pulled out by the second side wall and the third side wall, and the first reinforcement The sheet conveying apparatus according to claim 6 , wherein the discharge tray in the lying position is supported by upper ends of the first side wall, the second side wall, and the third side wall at a position overlapping with the second reinforcing part and the second reinforcing part. . Each of the second intermediate tray and the third intermediate tray has a rib projecting on the lower surface side and extending in the second direction, and the discharge direction from each storage position toward each exposure position. To be moved to
The locking portion is a protrusion protruding from the upper surface of the reinforcing member, and is in contact with the downstream wall surface in the discharge direction of the rib provided in the second intermediate tray,
The interlocking portion is a protrusion protruding on the upper surface of the reinforcing member on a virtual straight line that passes through the locking portion and extends in the first direction, and the rib of the rib provided on the third intermediate tray The sheet conveying apparatus according to claim 7 , wherein the sheet conveying apparatus is in contact with an upstream wall surface in a discharge direction. The first side wall is continuously formed with a receding wall that recedes toward the inner surface side at the center in the second direction,
The sheet conveying device according to any one of claims 6 to 8 , wherein the reinforcing member further includes a connecting portion that connects the first reinforcing portion and the second reinforcing portion and is fixed to the receding wall. The transport unit is
A roller for feeding the sheet in a feeding direction from the second tray side to the first tray side by rotating in a state of being in contact with the sheet supported by the feeding tray;
The upstream end of the feed direction is a rotation base end, and the downstream end of the feed direction is a rotation tip, and the roller attached to the rotation tip is supported by the feed tray. An arm that rotates in a direction to make contact with and separated from the formed sheet,
The reinforcing member is provided along an inner surface of the first side wall, and has an inclined wall inclined so that a surface facing the downstream side in the feeding direction is closer to the first side wall toward the bottom wall side. Furthermore, the sheet conveying apparatus in any one of Claim 6 to 9 . The discharge tray is
The first intermediate tray is positioned at the first storage position, the second intermediate tray is positioned at the midway position, the third intermediate tray is positioned at the third exposure position, and the rotating tray is protruded In the state located at the position, the sheet of the first size can be supported,
The first intermediate tray is located at the first exposure position, the second intermediate tray is located at the second exposure position, the third intermediate tray is located at the third exposure position, and the rotating tray is The sheet conveying apparatus according to any one of claims 2 to 10 , wherein the sheet of the second size can be supported in a state of being positioned at the protruding position. The feeding tray and the discharge tray can be inserted into and removed from the sheet conveying device,
The sheet conveying apparatus according to any one of claims 2 to 11 , wherein the sheet conveying apparatus includes a restricting portion that restricts rotation of the inserted discharge tray from the lying position to the standing position.

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