WO2012017785A1 - 媒体重送防止機構および媒体送出装置 - Google Patents
媒体重送防止機構および媒体送出装置 Download PDFInfo
- Publication number
- WO2012017785A1 WO2012017785A1 PCT/JP2011/065883 JP2011065883W WO2012017785A1 WO 2012017785 A1 WO2012017785 A1 WO 2012017785A1 JP 2011065883 W JP2011065883 W JP 2011065883W WO 2012017785 A1 WO2012017785 A1 WO 2012017785A1
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- WIPO (PCT)
- Prior art keywords
- gate
- information recording
- gate portion
- roller
- medium
- Prior art date
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- 230000002265 prevention Effects 0.000 title claims abstract description 37
- 238000000926 separation method Methods 0.000 claims abstract description 108
- 230000032258 transport Effects 0.000 description 53
- 210000000078 claw Anatomy 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical group ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/36—Article guides or smoothers, e.g. movable in operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/063—Rollers or like rotary separators separating from the bottom of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/52—Friction retainers acting on under or rear side of article being separated
- B65H3/5246—Driven retainers, i.e. the motion thereof being provided by a dedicated drive
- B65H3/5276—Driven retainers, i.e. the motion thereof being provided by a dedicated drive the retainers positioned over articles separated from the bottom of the pile
- B65H3/5284—Retainers of the roller type, e.g. rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/56—Elements, e.g. scrapers, fingers, needles, brushes, acting on separated article or on edge of the pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/1914—Cards, e.g. telephone, credit and identity cards
Definitions
- the present invention relates to a medium multi-feed prevention mechanism for feeding a plurality of information recording media in a stacked state one by one, and a medium delivery device including the medium multi-feed prevention mechanism.
- Patent Document 1 there is known a medium separation mechanism for separating and transporting a plurality of stacked media one by one (see, for example, Patent Document 1).
- the drawing roller and the feed roller for transporting the medium from the upstream side to the downstream side in the medium transport direction are spaced below the transport path with a predetermined interval in the transport direction.
- a tension roller is opposed to the pull-in roller and the feed roller from above.
- a reversing roller that rotates in the same direction as the drawing roller and the feeding roller is disposed above the conveying path between the drawing roller and the feeding roller in the conveying direction.
- a fixed block having a facing surface facing the reverse rotation roller is disposed below the reverse rotation roller. Between the opposed surface of the fixed block and the reverse rotation roller, a gap is formed in which one medium can pass but two media cannot pass.
- the medium separation mechanism described in Patent Document 1 when the two media conveyed in the state of being overlapped in the vertical direction reach between the reverse rotation roller and the opposite surface, the upper medium has its tip abutting against the reverse rotation roller. Because of the contact, the force returned from the reverse rotation roller to the upstream side is received, and the conveyance to the downstream side is prevented. On the other hand, the lower medium is conveyed downstream by the conveying force of the drawing roller. As described above, the medium separation mechanism described in Patent Document 1 uses the clearance formed between the opposing surface of the fixed block and the reverse rotation roller and the rotational force of the reverse rotation roller to transfer the media to be double fed. It is separated.
- the medium separation mechanism described in Patent Document 1 when the thickness of the medium to be used is relatively thick, the upper medium of the two media to be fed is appropriately brought into contact with the reverse rotation roller, It is possible to separate.
- this medium separation mechanism when the medium to be used is thin, unless the gap between the opposed surface of the fixed block and the reverse rotation roller is set with high accuracy, the upper medium is brought into contact with the reverse rotation roller. However, there is a risk of passing between the opposing surface of the fixed block and the reverse rotation roller together with the lower medium.
- the thickness of the medium used when the thickness of the medium used is reduced, the gap between the opposite surface of the fixed block and the reverse rotation roller should be accurately set so that one medium can pass but two sheets cannot pass. It is difficult. Therefore, in the medium separation mechanism described in Patent Document 1, if the thickness of the medium used is thin, there may be a case where the medium to be fed cannot be separated.
- the medium multi-feed prevention mechanism of the present invention is a medium multi-feed prevention mechanism for feeding a plurality of stacked information recording media one by one.
- the gate portion connects the rotation center of the transport roller and the rotation center of the separation roller.
- the information recording medium is disposed downstream of the virtual line in the information recording medium sending direction.
- the separation roller for separating the information recording medium to be double fed is disposed opposite to the conveyance roller and is urged toward the conveyance roller. Therefore, when the information recording medium passes between the conveyance roller and the separation roller, the separation roller moves in a direction approaching the conveyance roller and a direction away from the conveyance roller according to the thickness of the information recording medium used. . Therefore, the separation roller can be brought into contact with the information recording medium regardless of the thickness of the information recording medium used. As a result, in the present invention, regardless of the thickness of the information recording medium used, it is possible to separate the information recording medium to be fed by using the frictional force generated between the separation roller and the information recording medium. become.
- the gate portion where one information recording medium can pass but two overlapping information recording media cannot pass is represented by a virtual line connecting the rotation center of the transport roller and the rotation center of the separation roller.
- the information recording medium is disposed downstream of the information recording medium in the sending direction, even if the information recording medium to be fed cannot be separated by the separation roller, the information recording medium to be fed is brought into contact with the gate portion. Thus, it becomes possible to separate the information recording media to be double fed.
- the gate portion is disposed downstream of the virtual line in the sending direction, the force in the separating direction is applied using the frictional force between the separation roller and the information recording medium.
- the information recording medium to be fed is brought into contact with the gate portion in a state where it is applied to the information recording medium to be fed or after a force in the separating direction is applied to the information recording medium to be fed. be able to. Therefore, even if the attractive force acting between the information recording media is large, it becomes easy to separate the information recording media to be fed at the gate portion.
- the medium double feed prevention mechanism according to the present invention is based on the separation roller that is disposed opposite to the conveyance roller and is biased toward the conveyance roller, and the virtual line that connects the rotation center of the conveyance roller and the rotation center of the separation roller. Since it also includes a gate portion disposed on the downstream side in the sending direction, it is possible to appropriately separate the information recording medium to be fed by the separation roller and the gate portion.
- the gate portion is arranged at a position where the front end of the information recording medium in the sending direction reaches the gate portion before the rear end of the information recording medium in the sending direction comes out between the conveying roller and the separation roller.
- the information recording medium that is double-fed in a state where the force in the separating direction is applied to the multi-fed information recording medium using the frictional force between the separation roller and the information recording medium.
- the medium can be brought into contact with the gate portion. Therefore, even if the adsorption force acting between the information recording media is large, it becomes easier to separate the information recording media to be fed at the gate portion.
- the distance between the virtual line and the gate portion in the sending direction is shorter than the radius of the transport roller and the radius of the separation roller.
- the gate portion is disposed in the vicinity of the virtual line.
- At least the surfaces of the transport roller and the separation roller are made of an elastic member, and the front end of the information recording medium in the sending direction sandwiched between the transport roller and the separation roller is directed radially inward. It is preferable that the front end of the information recording medium in the sending direction is disposed at a position that reaches the gate portion before leaving the elastically deformed conveyance roller and separation roller. With this configuration, even when the front end side of the information recording medium is bent or warped in the sending direction of the information recording medium, the information recording medium to be double fed can be appropriately separated by the gate unit. Is possible.
- the gate portion is disposed adjacent to the conveying roller and the separation roller in the width direction of the information recording medium orthogonal to the sending direction.
- the gate portion can swing with the direction substantially parallel to the axial direction of the rotation axis of the transport roller as the axial direction. If comprised in this way, it will become possible to rock
- the gate mechanism includes a gap adjusting mechanism for adjusting a gap of the gate portion through which the information recording medium passes. If comprised in this way, it will become possible to adjust the clearance gap between gate parts according to the thickness of the information recording medium used.
- the gate portion is constituted by a first gate portion and a second gate portion that are arranged to face each other in the thickness direction of the information recording medium, and the gate mechanism is a first gate on which the first gate portion is formed.
- a gap between the gate portions is adjusted by rotating the second gate member relative to the first gate member.
- the gate portion is constituted by a first gate portion and a second gate portion which are arranged to face each other in the thickness direction of the information recording medium, and the first gate portion is arranged on the separation roller side, and the second gate portion Is arranged on the conveying roller side, and the rear end of the first gate portion in the delivery direction is preferably an inclined surface that inclines toward the delivery direction toward the second gate portion.
- the gate portion is constituted by a first gate portion and a second gate portion which are arranged to face each other in the thickness direction of the information recording medium, and the first gate portion is arranged on the separation roller side, and the second gate portion Is arranged on the conveying roller side, and the second gate part is preferably formed to extend in the counter-feeding direction which is opposite to the sending direction than the first gate part. If comprised in this way, it will become possible to guide an information recording medium appropriately to the clearance gap between gate parts using a 2nd gate part.
- the separation roller is connected to the drive mechanism of the transport roller via a torque limiter. If comprised in this way, when sending the information recording medium which passes the clearance gap between gate parts, it will become possible to reduce the conveyance resistance resulting from the frictional force between a separation roller and an information recording medium.
- the medium multi-feed prevention mechanism of the present invention includes a medium storage unit in which information recording media are stacked and stored, and a medium feed mechanism for sending the information recording medium stored in the medium storage unit toward the transport roller and the separation roller. It can be used for a medium sending device provided with. With this medium delivery device, it is possible to appropriately separate the information recording media to be double fed.
- the medium double feeding prevention mechanism and the medium sending apparatus As described above, in the medium double feeding prevention mechanism and the medium sending apparatus according to the present invention, it is possible to appropriately separate the information recording media to be double fed.
- FIG. 1 is a perspective view of a medium delivery device according to an embodiment of the present invention. It is a figure for demonstrating schematic structure of the principal part of the medium delivery apparatus shown in FIG. 1 from a side surface.
- FIG. 3 is a perspective view showing the delivery roller and the medium double feed prevention mechanism shown in FIG. 2 extracted from the back side of the medium delivery device. It is an enlarged view of the E section of FIG.
- FIG. 4 is an exploded perspective view of the gate mechanism shown in FIG. 3.
- FIG. 1 is a perspective view of a medium delivery device 1 according to an embodiment of the present invention.
- FIG. 2 is a diagram for explaining a schematic configuration of a main part of the medium delivery device 1 shown in FIG. 1 from the side.
- FIG. 3 is a perspective view showing the delivery rollers 4 and 5 and the medium double feed prevention mechanism 6 shown in FIG.
- the medium sending device 1 of this embodiment is a device for sending a card 2 as an information recording medium in a predetermined direction.
- the card 2 is sent to the X1 direction side in FIGS. That is, the X1 direction is the card 2 delivery direction.
- the X2 direction which is the opposite direction to the X1 direction, is the counter-sending direction.
- the X1 direction side in FIG. 1 or the like is the “front (front)” side of the medium delivery apparatus 1
- the X2 direction side is the “back (rear)” side of the medium delivery apparatus 1.
- the medium delivery device 1 includes a card storage unit 3 as a medium storage unit in which a plurality of cards 2 are stacked and stored in the vertical direction, and the bottom of the plurality of cards 2 stored in the card storage unit 3.
- a delivery roller 4 as a medium delivery mechanism for delivering the stored card 2 to the front side of the medium delivery device 1; and a delivery roller 5 for further delivering the card 2 delivered by the delivery roller 4 to the front side of the media delivery device 1.
- a medium double feed prevention mechanism 6 for sending out the cards 2 in a stacked state in the card storage unit 3 one by one.
- the card 2 used in the medium delivery device 1 of this embodiment is a vinyl chloride card having a thickness of about 0.7 to 0.8 mm, and a PET (polyethylene terephthalate) having a thickness of about 0.18 to 0.36 mm.
- a card or a paper card of a predetermined thickness that is, in the medium delivery device 1 of the present embodiment, cards 2 having various thicknesses can be used. Further, in the medium delivery device 1 of this embodiment, it is possible to use a card 2 having various rigidity from a relatively soft card 2 to a relatively hard card 2.
- the card 2 is, for example, a non-contact type IC card, and the card 2 has a built-in communication antenna. A magnetic stripe may be formed on the surface of the card 2 or an IC chip may be fixed.
- the card storage unit 3 is formed in a rectangular parallelepiped box shape in which a part of the side surface and the upper surface are open. As shown in FIG. 2, an opening 3c through which the card 2 stored in the card storage unit 3 passes toward the front side is formed between the bottom surface 3a of the card storage unit 3 and the lower end of the front side wall 3b. ing. The opening 3c is formed so that a plurality of cards 2 can pass through.
- the delivery roller 4 is an eccentric roller.
- the upper end side of the delivery roller 4 is disposed in a through hole formed in the bottom surface portion 3a.
- a motor (not shown) is connected to the delivery roller 4.
- Support rollers 7 and 8 for supporting the card 2 stored in the card storage unit 3 from below are arranged below the card storage unit 3.
- the support roller 7 is arranged coaxially with the feed roller 4.
- the support roller 8 is disposed in front of the support roller 7.
- the delivery roller 5 is disposed below the transport path of the card 2 so as to contact the lower surface of the card 2.
- a motor (not shown) is connected to the delivery roller 5.
- a pad roller 9 is disposed on the upper side of the delivery roller 5 so as to face each other. The pad roller 9 is urged toward the delivery roller 5.
- the medium double feed prevention mechanism 6 is disposed between the feed roller 5 and the pad roller 9 and the card storage unit 3. Hereinafter, the configuration of the medium double feed prevention mechanism 6 will be described.
- FIG. 4 is an enlarged view of a portion E in FIG.
- FIG. 5 is an exploded perspective view of the gate mechanism 13 shown in FIG.
- the medium double feed prevention mechanism 6 includes a transport roller 11 that contacts the card 2 and transports the card 2, and a card 2 that is transported in a state of being overlapped toward the delivery roller 5 (that is, multi-feed).
- a separation roller 12 for separation, and a conveyance roller 11 and a gate mechanism 13 disposed on the front side of the separation roller 12 are provided.
- the conveyance roller 11 is a rubber roller in which a rubber ring is arranged on the outer peripheral side. That is, the surface of the transport roller 11 is made of rubber that is an elastic member.
- the transport roller 11 is disposed below the transport path of the card 2 so as to contact the lower surface of the card 2.
- a motor (not shown) is connected to the transport roller 11 via a gear train including a gear 14 (see FIG. 3).
- the gear train, the motor, and the like constitute a drive mechanism for the transport roller 11.
- the separation roller 12 is a rubber roller in which rubber rings are arranged on the outer peripheral side, like the transport roller 11. That is, the surface of the separation roller 12 is made of rubber that is an elastic member.
- the separation roller 12 is disposed to face the conveyance roller 11 from above the conveyance roller 11. Further, the separation roller 12 is urged toward the conveying roller 11 by the urging force of the urging member 15 (see FIG. 1).
- the biasing member 15 is, for example, a tension coil spring.
- a gear 17 that meshes with a gear 19 fixed to the rotation shaft of the transport roller 11 is fixed to the rotation shaft 16 of the separation roller 12.
- the separation roller 12 is attached to the rotary shaft 16 via a torque limiter 18 (see FIG. 3). That is, the separation roller 12 is connected to the drive mechanism of the transport roller 11 via the torque limiter 18, the rotating shaft 16, the gear 17 and the like.
- the separation roller 12 of this embodiment rotates in the same direction as the conveyance roller 11 in order to separate the card 2 to be fed. That is, when the card 2 is sent out from the card storage unit 3, the transport roller 11 rotates in the clockwise direction in FIGS. 2 and 4, and the separation roller 12 also rotates in the clockwise direction in FIGS. Therefore, when a plurality of cards 2 are sent out from the card storage unit 3 in an overlapped state, the card 2 whose lower surface abuts on the transport roller 11 is transported to the near side and its upper surface abuts on the separation roller 12. The card 2 is returned to the card storage unit 3 side (that is, the back side).
- the conveyance roller 11 and the separation roller 12 are rubber rollers, and the separation roller 12 is urged toward the conveyance roller 11.
- the conveyance roller 11 and the separation roller 12 are elastically deformed radially inward, and the conveyance roller 11 and the card 2 is in surface contact, and the separation roller 12 and the card 2 are in surface contact.
- the gate mechanism 13 has a gate portion 20 having a gap G through which the card 2 passes.
- the gap G between the gate portions 20 is set so that one card 2 can pass but two overlapping cards 2 cannot pass.
- the gap G is the same gap as the thickness of about 1.5 cards 2.
- the gate part 20 is comprised by the 1st gate part 21a and the 2nd gate part 22a which oppose in the thickness direction of the card
- the gap G of the gate portion 20 is between the first gate portion 21a and the second gate member 22a.
- the first gate portion 21a is disposed on the separation roller 12 side (that is, the upper side)
- the second gate portion 22a is disposed on the conveying roller 11 side (that is, the lower side).
- the 1st gate part 21a is formed in the 1st gate member 21 formed in flat form, as shown in FIG.
- the first gate member 21 includes a rear end side portion 21b formed so as to extend toward the front direction, and a front end side portion 21c formed so as to extend obliquely upward from the front end side of the rear end side portion 21b.
- the rear end portion of the rear end side portion 21b is the first gate portion 21a.
- the lower end surface of the first gate portion 21a protrudes below the lower end surface of the other portion of the rear end side portion 21b.
- the rear end of the first gate portion 21a is an inclined surface 21d that is inclined upward as it goes to the back side.
- An angle ⁇ (see FIG. 4) of the inclined surface 21d with respect to the vertical direction is set to be slightly larger than a friction angle between the inclined surface 21d and the front end surface of the card 2.
- the card 2 is guided by the inclined surface 21d and enters the gate portion 20 when the front end surface of one card 2 conveyed toward the gate portion 20 without being overlapped contacts the inclined surface 21d. This is because the upper card 2 of the two cards 2 transported to the gate unit 20 in an overlapped state is prevented from entering the gate unit 20.
- the angle ⁇ is, for example, about 16 ° to 30 °.
- a round hole-shaped through hole 21 e is formed at the approximate center of the first gate member 21.
- a round hole-shaped through hole 21 f is also formed on the upper end side of the first gate member 21.
- the 2nd gate part 22a is formed in the 2nd gate member 22 formed by bending a flat member as shown in FIG.
- the second gate member 22 has a side surface portion 22b that is disposed substantially in parallel with the first gate member 21 at a predetermined interval, and extends from the lower end side of the side surface portion 22b toward the first gate member 21. It is comprised by the bottom face part 22c formed.
- the side surface portion 22 b is formed in substantially the same shape as the first gate member 21. However, the rear end side of the side surface portion 22b extends from the rear end side of the first gate member 21 toward the back side.
- a round hole-like through hole 22e is formed at the approximate center of the side surface portion 22b, and a long hole-like through hole 22f is formed at the upper end side of the side surface portion 22b.
- the bottom surface portion 22c is formed in a substantially planar shape extending from the rear end side portion of the side surface portion 22b toward the first gate member 21.
- a portion of the bottom surface portion 22c on the first gate member 21 side is a second gate portion 22a, and the lower surface of the first gate portion 21a and the upper surface of the second gate portion 22a are arranged in the vertical direction via a gap G. Opposite.
- the upper surface of the second gate portion 22a protrudes above the upper surface of the other portion of the bottom surface portion 22c.
- the rear end side of the bottom surface portion 22c is bent so as to incline downward as it goes toward the back side. As described above, the rear end side of the side surface portion 22b extends toward the back side rather than the rear end side of the first gate member 21, and the second gate portion 22a is farther from the first gate portion 21a. It extends toward.
- a hexagonal columnar shaft member 23 is disposed between the first gate member 21 and the side surface portion 22b of the second gate member 22.
- a female screw is formed at each of both ends of the shaft member 23, and a screw 25 inserted into the through hole 21 f of the first gate member 21 and a screw 26 inserted into the through hole 22 f of the second gate member 22. Are engaged.
- the first gate member 21 and the second gate member 22 are fixed to each other by the shaft member 23 and screws 25 and 26.
- a substantially cylindrical tube member 24 is disposed between the first gate member 21 and the side surface portion 22b of the second gate member 22.
- One end of the cylindrical member 24 is fixed to the side surface portion 22b while being inserted into the through hole 22e.
- the other end of the cylindrical member 24 is inserted into the through hole 21 e but is not fixed to the first gate member 21.
- a fixed shaft (not shown) that is fixed to the frame of the medium feeding device 1 is inserted through the inner peripheral side of the cylindrical member 24.
- the fixed shaft is disposed substantially parallel to the axial direction of the rotation shaft of the transport roller 11.
- the first gate member 21 and the second gate member 22 can be slightly swung around the fixed shaft while being fixed to each other. That is, the gate portion 20 can be slightly swung in the vertical direction around the central axis of the cylindrical member 24.
- the gap G of the gate portion 20 can be adjusted by loosening the screw 26 and rotating the second gate member 22 relative to the first gate member 21 around the cylindrical member 24. It has become. That is, in this embodiment, a gap adjusting mechanism that adjusts the gap of the gate portion 20 is configured by the shaft member 23, the cylindrical member 24, the screw 26, and the like.
- the cylindrical member 24 of this embodiment is an engaging member that engages with the first gate member 21 and the second gate member 22 so that the second gate member 22 can be rotated relative to the first gate member 21.
- the gate unit 20 is disposed in front of an imaginary line L that connects the rotation center of the transport roller 11 and the rotation center of the separation roller 12.
- the gate unit 20 is arranged at a position where the front end of the card 2 reaches the gate unit 20 before the rear end of the card 2 comes out from between the transport roller 11 and the separation roller 12.
- the gate unit 20 is arranged in the vicinity of the virtual line L (more specifically, slightly in front of the virtual line L), and the distance between the virtual line L and the gate unit 20 in the front-rear direction is The radius of the conveying roller 11 and the radius of the separation roller 12 are shorter.
- the card 2 in a state sandwiched between the transport roller 11 and the separation roller 12 is separated from the transport roller 11 and the separation roller 12 that are elastically deformed radially inwardly before the card 2 is separated from the card.
- the gate part 20 is arranged at a position where the front end of the second part reaches the gate part 20. That is, when the front end of the card 2 reaches the gate portion 20, the front end of the card 2 is sandwiched between the conveying roller 11 and the separation roller 12 that are elastically deformed. In contact.
- the first gate member 21 and the second gate member 22 are arranged on the front side of the paper surface of FIG. 3 (the front side of the paper surface of FIG. 2) with respect to the conveying roller 11 and the separation roller 12. .
- the first gate member 21 and the first gate member 21 A second gate member 22 is disposed.
- the gate unit 20 is disposed adjacent to the transport roller 11 and the separation roller 12 through a slight gap in the width direction of the card 2.
- the back end of the first gate portion 21a is disposed on the front side of the virtual line L
- the back end of the second gate portion 22a is disposed on the back side of the virtual line L.
- the front end of the card 2B may pass through the virtual line L.
- the front end of the card 2B that has passed through the virtual line L immediately comes into contact with the inclined surface 21d of the first gate portion 21a constituting the gate portion 20, and the card 2A and the card 2B are separated.
- action of the separation roller 12 is returned to the back
- the separation roller 12 for separating the card 2 that is rotated in the same direction as the transport roller 11 and is double-fed is biased toward the transport roller 11. Therefore, when the card 2 passes between the transport roller 11 and the separation roller 12, the separation roller 12 moves in the vertical direction according to the thickness of the card 2 to be used. Therefore, in this embodiment, the separation roller 12 can be brought into contact with the card 2 regardless of the thickness of the card 2 used. As a result, in this embodiment, regardless of the thickness of the card 2 to be used, it is possible to separate the cards 2 to be fed using the frictional force generated between the separation roller 12 and the card 2. .
- the gate portion 20 is disposed in front of the imaginary line L that connects the rotation center of the transport roller 11 and the rotation center of the separation roller 12, the suction acting between the cards 2 that are double-fed. Even if the force is greater than the frictional force between the card 2 that contacts the separation roller 12 and the separation roller 12, and the card 2 to be fed cannot be separated by the separation roller 12, the force is double fed.
- the card 2 is brought into contact with the inclined surface 21d of the first gate portion 21a, so that the cards 2 to be double fed can be separated.
- the front end of the card 2 reaches the gate portion 20 before the rear end of the card 2 comes out from between the transport roller 11 and the separation roller 12, so that the friction between the separation roller 12 and the card 2 is reached.
- the card 2 to be double fed can be brought into contact with the inclined surface 21d of the first gate portion 21a in a state where the force in the separating direction is applied to the card 2 to be double fed. Therefore, in this embodiment, even if the suction force acting between the cards 2 is large, the gates 20 can more easily separate the cards 2 to be fed.
- the medium double feed prevention mechanism 6 of the present embodiment is based on the separation roller 12 biased toward the transport roller 11 and the imaginary line L connecting the rotation center of the transport roller 11 and the rotation center of the separation roller 12. Since the gate portion 20 is also provided on the front side, the card 2 to be double fed can be appropriately separated by the separation roller 12 and the gate portion 20.
- the gate portion 20 is disposed at a position where the front end reaches the gate portion 20. Therefore, when the double-fed card 2 comes into contact with the gate portion 20, the front end of the card 2 is sandwiched between the transport roller 11 and the separation roller 12. Therefore, even when the card 2 to be used has low rigidity and the card 2 is soft, it is possible to prevent the card 2 from buckling when the double-fed card 2 comes into contact with the gate portion 20.
- the gate portion 20 can be slightly swung around the central axis of the cylindrical member 24.
- the gate portion 20 Therefore, even if the card 2 is soft, it is possible to prevent the card 2 from buckling when passing through the gate portion 20.
- the gate portion 20 is disposed at a position where the front end reaches the gate portion 20. Therefore, even if the front end side of the card 2 is bent or warped in the longitudinal direction (front-rear direction) of the card 2, the card 2 is interposed between the separation roller 12 and the first gate member 21 in the vertical direction. It becomes possible to prevent the front end from entering, and as a result, the card 2 to be double fed can be properly separated by the gate unit 20.
- the gate portion 20 is disposed adjacent to the transport roller 11 and the separation roller 12 in the width direction of the card 2, the front end side of the card 2 is bent in the width direction of the card 2. Even when the card 2 is warped or warped, it is possible to prevent the front end of the card 2 from entering between the separation roller 12 and the first gate member 21 in the width direction of the card 2.
- the unit 20 makes it possible to properly separate the cards 2 to be double fed.
- the gap G of the gate portion 20 can be adjusted by loosening the screw 26 and rotating the second gate member 22 relative to the first gate member 21 around the cylindrical member 24. It has become. Therefore, the gap G of the gate portion 20 can be adjusted according to the thickness of the card 2 to be used.
- the angle ⁇ with respect to the vertical direction of the inclined surface 21d is set to be slightly larger than the friction angle between the inclined surface 21d and the front end surface of the card 2. Therefore, even when the card 2 is soft, it is possible to guide one card 2 conveyed toward the gate unit 20 in a state where the cards 2 do not overlap to the gap G of the gate unit 20 by the inclined surface 21d. . In addition, it is possible to prevent the upper card 2 of the two cards 2 conveyed to the gate unit 20 in an overlapping state from entering the gate unit 20.
- the second gate portion 22a extends toward the back side from the first gate portion 21a. Therefore, it is possible to appropriately guide the card 2 to the gap G of the gate portion 20 using the second gate portion 22a.
- the second gate since the rear end side of the bottom surface portion 22c is bent so as to incline downward as it goes toward the back side, the second gate is utilized by using the rear end side of the bottom surface portion 22c. It is possible to appropriately guide the card 2 to the upper surface of the portion 22a.
- the separation roller 12 is connected to the drive mechanism of the transport roller 11 via the torque limiter 18, the rotating shaft 16, the gear 17 and the like. Therefore, when the card 2 passing through the gap G of the gate portion 20 is sent out, it is possible to reduce the conveyance resistance caused by the frictional force between the separation roller 12 and the card 2.
- the card 2 in a state of being sandwiched between the transport roller 11 and the separation roller 12 is separated from the transport roller 11 and the separation roller 12 that are elastically deformed radially inward before the card 2.
- the gate portion 20 is disposed at a position where the front end of the gate reaches the gate portion 20. In addition to this, for example, after the front end of the card 2 sandwiched between the transport roller 11 and the separation roller 12 is separated from the transport roller 11 and the separation roller 12, the front end of the card 2 reaches the gate portion 20.
- the gate unit 20 may be disposed.
- the gate unit 20 may be arranged not in the vicinity of the virtual line L but in a position away from the virtual line L. In this case, the gate unit 20 may be disposed at a position where the front end of the card 2 reaches the gate unit 20 after the rear end of the card 2 has come out between the transport roller 11 and the separation roller 12.
- the gate part 20 can be rock
- the medium delivery mechanism that sends out the card 2 to the front side of the medium delivery device 1 is the delivery roller 4, but the claw member that contacts the rear end surface of the card 2 and the claw member drive mechanism that drives this claw member.
- the medium delivery mechanism may be configured by, for example.
- the configuration of the medium double feed prevention mechanism 6 according to the embodiment of the present invention has been described by taking the medium delivery device 1 as an example.
- the medium double feed prevention mechanism 6 prevents double feeding of media. It can be used for various devices that require the above.
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Abstract
Description
図1は、本発明の実施の形態にかかる媒体送出装置1の斜視図である。図2は、図1に示す媒体送出装置1の要部の概略構成を側面から説明するための図である。図3は、図2に示す送出ローラ4、5および媒体重送防止機構6等を抜き出して媒体送出装置1の奥側から示す斜視図である。
図4は、図2のE部の拡大図である。図5は、図3に示すゲート機構13の分解斜視図である。
以上のように構成された媒体送出装置1では、送出ローラ4によってカード収納部3から1枚のカード2が送出されると、カード2は、ゲート部20を通過して、送出ローラ5によって、さらに前側へ送出される。ゲート部20は、筒部材24の中心軸を中心に上下方向に揺動可能となっているため、カード2がゲート部20を通過する際には、ゲート部20は、カード2の形状や動きに倣って揺動する。なお、カード収納部3から1枚のカード2が送出される場合に、カード2の前端面が傾斜面21dに当接しても、カード2の前端面は、傾斜面21dによってゲート部20へ案内される。
以上説明したように、本形態では、搬送ローラ11と同方向に回転して重送されるカード2を分離するための分離ローラ12が搬送ローラ11に向かって付勢されている。そのため、搬送ローラ11と分離ローラ12との間をカード2が通過する際には、使用されるカード2の厚みに応じて、上下方向へ分離ローラ12が移動する。したがって、本形態では、使用されるカード2の厚みにかかわらず、分離ローラ12をカード2に当接させることができる。その結果、本形態では、使用されるカード2の厚みにかかわらず、分離ローラ12とカード2との間に生じる摩擦力を利用して、重送されるカード2を分離することが可能になる。
上述した形態は、本発明の好適な形態の一例ではあるが、これに限定されるものではなく本発明の要旨を変更しない範囲において種々変形実施が可能である。
2 カード(情報記録媒体)
3 カード収納部(媒体収納部)
4 送出ローラ(媒体送出機構)
6 媒体重送防止機構
11 搬送ローラ
12 分離ローラ
13 ゲート機構
18 トルクリミッタ
20 ゲート部
21 第1ゲート部材
21a 第1ゲート部
21d 傾斜面
22 第2ゲート部材
22a 第2ゲート部
23 軸部材(隙間調整機構の一部)
24 筒部材(隙間調整機構の一部、係合部材)
26 ネジ(隙間調整機構の一部)
G 隙間
L 仮想線
X1 送出方向
X2 反送出方向
Claims (13)
- 複数枚重なった状態の情報記録媒体を1枚ずつ送り出すための媒体重送防止機構において、
前記情報記録媒体に当接して前記情報記録媒体を搬送する搬送ローラと、前記搬送ローラに対向配置され前記搬送ローラに向かって付勢されるとともに前記搬送ローラと同方向に回転して重送される前記情報記録媒体を分離するための分離ローラと、1枚の前記情報記録媒体は通過できるが重なった状態の2枚の前記情報記録媒体が通過できないゲート部を有するゲート機構とを備え、
前記ゲート部は、前記搬送ローラの回転中心と前記分離ローラの回転中心とを結ぶ仮想線よりも前記情報記録媒体の送出方向の下流側に配置されていることを特徴とする媒体重送防止機構。 - 前記ゲート部は、前記送出方向における前記情報記録媒体の後端が前記搬送ローラと前記分離ローラとの間から抜ける前に、前記送出方向における前記情報記録媒体の前端が前記ゲート部に到達する位置に配置されていることを特徴とする請求項1記載の媒体重送防止機構。
- 前記仮想線と前記ゲート部との前記送出方向における距離は、前記搬送ローラの半径および前記分離ローラの半径よりも短いことを特徴とする請求項2記載の媒体重送防止機構。
- 前記ゲート部は、前記仮想線の近傍に配置されていることを特徴とする請求項3記載の媒体重送防止機構。
- 前記搬送ローラおよび前記分離ローラの少なくとも表面は、弾性部材で構成され、
前記ゲート部は、前記搬送ローラと前記分離ローラとに挟まれた前記送出方向における前記情報記録媒体の前端が、径方向内側に向かって弾性変形している前記搬送ローラおよび前記分離ローラから離れる前に、前記送出方向における前記情報記録媒体の前端が前記ゲート部に到達する位置に配置されていることを特徴とする請求項3または4記載の媒体重送防止機構。 - 前記ゲート部は、前記送出方向に直交する前記情報記録媒体の幅方向において、前記搬送ローラおよび前記分離ローラに隣接配置されていることを特徴とする請求項3から5のいずれかに記載の媒体重送防止機構。
- 前記ゲート部は、前記搬送ローラの回転軸の軸方向と略平行な方向を軸方向として揺動可能であることを特徴とする請求項1から6のいずれかに記載の媒体重送防止機構。
- 前記ゲート機構は、前記情報記録媒体が通過する前記ゲート部の隙間を調整する隙間調整機構を備えることを特徴とする請求項1から7のいずれかに記載の媒体重送防止機構。
- 前記ゲート部は、前記情報記録媒体の厚み方向で対向配置される第1ゲート部と第2ゲート部とによって構成され、
前記ゲート機構は、前記第1ゲート部が形成される第1ゲート部材と、前記第2ゲート部が形成される第2ゲート部材と、前記第1ゲート部材に対する前記第2ゲート部材の相対回動が可能となるように前記第1ゲート部材および前記第2ゲート部材に係合する係合部材とを備え、
前記第1ゲート部材に対して前記第2ゲート部材を相対回動させることで前記ゲート部の隙間が調整されることを特徴とする請求項8記載の媒体重送防止機構。 - 前記ゲート部は、前記情報記録媒体の厚み方向で対向配置される第1ゲート部と第2ゲート部とによって構成され、
前記第1ゲート部は、前記分離ローラ側に配置され、前記第2ゲート部は、前記搬送ローラ側に配置され、
前記送出方向における前記第1ゲート部の後端は、前記第2ゲート部に向かうにしたがって前記送出方向へ向かって傾斜する傾斜面となっていることを特徴とする請求項1から9のいずれかに記載の媒体重送防止機構。 - 前記ゲート部は、前記情報記録媒体の厚み方向で対向配置される第1ゲート部と第2ゲート部とによって構成され、
前記第1ゲート部は、前記分離ローラ側に配置され、前記第2ゲート部は、前記搬送ローラ側に配置され、
前記第2ゲート部は、前記第1ゲート部よりも前記送出方向の反対方向となる反送出方向に向かって延びるように形成されていることを特徴とする請求項1から10のいずれかに記載の媒体重送防止機構。 - 前記分離ローラは、トルクリミッタを介して前記搬送ローラの駆動機構に連結されていることを特徴とする請求項1から11のいずれかに記載の媒体重送防止機構。
- 請求項1から12のいずれかに記載の媒体重送防止機構と、前記情報記録媒体が積層されて収納される媒体収納部と、前記媒体収納部に収納される前記情報記録媒体を前記搬送ローラおよび前記分離ローラに向かって送出する媒体送出機構とを備えることを特徴とする媒体送出装置。
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US13/756,965 US9085432B2 (en) | 2010-08-04 | 2011-07-12 | Medium overlapped-feed preventing mechanism and medium sending-out device |
CN201180037629.8A CN103052578B (zh) | 2010-08-04 | 2011-07-12 | 介质重叠运送防止机构及介质送出装置 |
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JP2010175108A JP5563400B2 (ja) | 2010-08-04 | 2010-08-04 | 媒体重送防止機構および媒体送出装置 |
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JP6264033B2 (ja) * | 2013-12-27 | 2018-01-24 | ブラザー工業株式会社 | シート搬送装置 |
JP6424650B2 (ja) * | 2015-01-29 | 2018-11-21 | ブラザー工業株式会社 | シート搬送装置 |
JP6545028B2 (ja) * | 2015-07-27 | 2019-07-17 | キヤノン株式会社 | シート搬送装置及び画像形成装置 |
JP2021104882A (ja) * | 2019-12-27 | 2021-07-26 | グローリー株式会社 | 紙葉類繰出装置、及び、紙葉類処理装置 |
CN111924464A (zh) * | 2020-08-11 | 2020-11-13 | 安徽长青建筑制品有限公司 | 一种下料定位机构 |
CN112249743B (zh) * | 2020-12-16 | 2021-06-08 | 佛山市金页盈信智能机械有限公司 | 一种出纸装置 |
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JPH06166446A (ja) * | 1992-11-30 | 1994-06-14 | Canon Inc | シート分離給送装置 |
JPH0687348U (ja) * | 1994-01-19 | 1994-12-22 | 株式会社精工舎 | 紙送り装置 |
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US5599011A (en) * | 1993-07-26 | 1997-02-04 | Uarco Incorporated | Sheet feeder |
JP3328528B2 (ja) | 1996-12-24 | 2002-09-24 | 日本信号株式会社 | 複数枚媒体の分離機構 |
JP4587777B2 (ja) * | 2004-10-29 | 2010-11-24 | 京セラミタ株式会社 | 画像形成装置 |
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2010
- 2010-08-04 JP JP2010175108A patent/JP5563400B2/ja active Active
-
2011
- 2011-07-12 WO PCT/JP2011/065883 patent/WO2012017785A1/ja active Application Filing
- 2011-07-12 US US13/756,965 patent/US9085432B2/en not_active Expired - Fee Related
- 2011-07-12 CN CN201180037629.8A patent/CN103052578B/zh not_active Expired - Fee Related
Patent Citations (6)
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JPS62285832A (ja) * | 1987-04-24 | 1987-12-11 | Hitachi Ltd | 媒体繰出し機構 |
JPS6443036U (ja) * | 1987-09-09 | 1989-03-15 | ||
JPH0328136U (ja) * | 1989-07-31 | 1991-03-20 | ||
JPH04106688A (ja) * | 1990-08-27 | 1992-04-08 | Mitsubishi Heavy Ind Ltd | カード取出装置 |
JPH06166446A (ja) * | 1992-11-30 | 1994-06-14 | Canon Inc | シート分離給送装置 |
JPH0687348U (ja) * | 1994-01-19 | 1994-12-22 | 株式会社精工舎 | 紙送り装置 |
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US9085432B2 (en) | 2015-07-21 |
JP5563400B2 (ja) | 2014-07-30 |
US20130175140A1 (en) | 2013-07-11 |
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