JP4648729B2 - Home door device - Google Patents

Description

  The present invention relates to a platform door device installed on a platform.

  2. Description of the Related Art Conventionally, a platform door device installed along a track-side edge of a platform for the purpose of ensuring passenger safety is known (see, for example, Patent Document 1). For example, as shown in FIG. 7, the platform door device holds the door body 95 in a closed state when the train is not in the line, and when the train enters the door, the sliding door type door is operated according to the opening / closing operation of the entrance / exit door. The body 95 is configured to open and close. The door body 95 is supported by the guide box 91 so as to be able to reciprocate. The guide box 91 is arranged with a space through a wall body (not shown) so that the platform is divided into the track side and the inside thereof. It is done.

In the guide box 91, an opening / closing control panel 96 for the door body 95, a guide rail 92, a motor 94, and a belt 93 that travels by the motor 94 are arranged. A hanger 97 is fixed to the door body 95, and the hanger 97 moves along the guide rail 92 as the belt 93 travels, so that the door body 95 moves in the opening / closing direction. .
JP 2001-164833 A

  By the way, when the width of the guide box is made shorter than the width of the door body, and the door body is configured to project between adjacent guide boxes when the door body opens the entrance / exit passage, the guide rail is moved to the door body side. In addition to mounting, it is necessary to arrange a guide portion supporting the guide rail on the guide box side. In this case, since the guide rail is exposed, it is necessary to cover the guide rail with a rail cover in order to prevent foreign matter from adhering to the guide rail and improve the appearance. Further, in order to increase the opening / closing movement width by the door body, the guide rail and the rail cover are protruded from the door bottom end of the door body, and when the door body is in the closed position, the protruding portion is supported by the guide portion. The configuration is effective.

  However, if the guide rail is covered with the rail cover, the rail cover becomes an obstacle and it becomes difficult to support the guide rail by the guide portion. Further, if the guide rail and the rail cover are configured to protrude to the door bottom side, there is a problem of interference between the guide rail and the rail cover between the adjacent guide boxes. There is a problem that needs to be widened.

  The present invention has been made in view of such points, and the object of the present invention is to prevent the rail cover from interfering with the support of the guide rail by the guide portion, and the door body has moved between the guide boxes. Sometimes it is possible to avoid the interference between the guide rail and the rail cover.

  In order to achieve the above object, according to the present invention, a pair of guide boxes are installed on a platform at a distance from each other, and a door body is movable in each guide box so as to advance between the two guide boxes. On the premise of the supported home door device, each door body is arranged so as to extend in the moving direction, and is provided so as to protrude toward the other door body from the door butt of the door body. A linear rail, and a long member that is disposed on each door body so as to extend in the moving direction thereof, and is provided so that one end thereof is positioned closer to the door body on the other side than the door bottom of the door body; A drive member that is disposed in each guide box and transmits a driving force for moving the door body in the moving direction to the elongate member, and each door body is provided, A rail cover that covers the upper and side of the linear rail, and a guide portion that is installed in each guide box and that slidably supports the linear rail in the rail cover. And a support member that supports the rail cover from below, the portions of the rail covers that protrude from the door butt differ so that they do not interfere with each other even if the door bodies move between the guide boxes. The two long members are set to different heights so that they do not interfere with each other even if the doors move between the guide boxes.

  In the present invention, the guide portion is supported from below the rail cover by the support member, and the linear rail is supported by this guide portion, so that the foreign matter is prevented from adhering to the linear rail while maintaining the linear rail support state. And can improve the appearance. In addition, since both rail covers are arranged at different height positions, and the long members are arranged at different height positions, both door bodies are also moved between the guide boxes. Do not interfere with each other. As a result, when both door bodies move between the guide boxes, it becomes possible to arrange both guide boxes so that both rail covers overlap vertically. It can also be installed on platforms where narrow vehicles enter.

  The rail cover and the long member are arranged so as to be displaced in the thickness direction of the door body, the rail cover provided on the one door body, and the long member provided on the other door body Is preferably set at a height position where an overlapping portion is seen in the horizontal direction when both doors move between the guide boxes.

  In this configuration, the vertical width of the area required for the installation of both rail covers and both long members can be compressed as compared to the configuration in which both rail covers and both long members are shifted up and down so as not to overlap. .

  Of the two rail covers, a rail cover in which a portion protruding from the door butt is arranged above the other rail cover is provided with a notch at the lower end thereof, and one of the other rail covers. The rail covers may be set at a height position where overlapping portions are seen in the horizontal direction when the doors are moved between the guide boxes so that the portion enters the notch. .

  In this configuration, since the two rail covers can be set in an arrangement relationship such that they overlap when viewed in the horizontal direction, the difference in installation height between the two rail covers can be further reduced.

  The long member is preferably configured in a shape that fits within the thickness range of the door body. If it carries out like this, compared with the structure by which a elongate member is arrange | positioned on the thickness direction outer side of a door body, the thickness of a guide box can be made thin.

  The long member is constituted by a belt member whose both ends are fixed to the door body, and the drive member is constituted by a drive pulley provided on a drive shaft of a motor, and the drive pulley is provided on both sides of the drive pulley. A pair of idler pulleys may be provided at the same height as the pulleys, and the belt member may be wound around the drive pulleys so as to pass between the drive pulleys and the respective idler pulleys.

  With this configuration, it is possible to efficiently transmit the driving force of the driving pulley to the belt member, and it is possible to suppress an increase in the vertical width of a region necessary for installing the driving pulley and the idler pulley.

  Moreover, each said elongate member is comprised by the belt member by which both ends were fixed to the said door body, and the said belt member is good also as a structure set to the arrangement | positioning protruded below the said rail cover.

  In this configuration, it is possible to prevent the maintenance from being difficult due to the cover.

  As described above, according to the present invention, it is possible to prevent the rail cover from interfering with the support of the guide rail by the guide portion, and even if the distance between the guide boxes is narrowed, the door body is between the guide boxes. It is possible to avoid the guide rail and the rail cover from interfering with each other when moving so as to protrude.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a front view of a platform door device 10 according to an embodiment of the present invention as viewed from the platform side toward the track side. As shown in the figure, the platform door device 10 includes a pair of guide boxes 12 and 12 arranged at predetermined intervals along the track-side end of the platform P, and a space between the guide boxes 12 and 12. The partition panel 14 to be disposed and a pair of sliding door type door bodies 16 and 16 disposed in a state of penetrating the guide boxes 12 and 12 are provided. The platform P is partitioned into a track side and a home side inside the platform P by connecting a large number of the platform door devices 10. Opening and closing the door bodies 16 and 16 in this state opens and closes the getting-on / off passages 20 and 20 through which train passengers pass.

  Each guide box 12 is erected on the platform P. The guide box 12 is formed in a vertically long shape vertically and has a cylindrical shape through which the door body 16 can penetrate in a direction along the track (left-right direction in FIG. 1). The width of the guide box 12 in the direction along the track is shorter than the width of the door body 16.

  The door body 16 reciprocates between the open position and the closed position in a direction along the track. The open position means that the door end 16a of the door body 16 is positioned in the vicinity of the passage-side end portion 12a of the guide box 12, and the door bottom 16b of the door body 16 protrudes from the partition-side end portion 12b of the guide box 12. The position which opens the boarding / alighting passage 20 located in the door-end side rather than 12 is said. On the other hand, the closed position refers to a position where the door bottom 16b of the door body 16 enters the guide box 12 and the door tip 16a of the door body 16 protrudes outside the guide box 12 to close the entrance / exit passage 20.

  In the left guide box 12 shown in FIG. 1, the left getting-on / off passage 20 is closed by the door body 16 moving leftward from the left end portion as the passage-side end portion 12a. On the other hand, in the right guide box 12, the right getting-on / off passage 20 is closed by the door body 16 moving rightward from the right end portion as the passage-side end portion 12a. In the left door body 16, the right end portion is a door butt 16 b, and in the right door body 16, the left end portion is a door butt 16 b.

  Both the guide boxes 12 and 12 are set at an interval such that the door bottoms 16b and 16b in the door body 25 do not interfere with each other when the door bodies 16 and 16 open the entrance / exit passage 20, respectively.

  The partition panel 14 consists of a rectangular panel, and is arrange | positioned so that the partition side edge parts 12b and 12b of both guide boxes 12 and 12 may be connected. Thereby, the platform P is divided into the track side and the home side as a waiting place for passengers.

  Next, the structure of the door body 16 and the guide box 12 is demonstrated, referring FIG. 2 (a) (b) and FIG. 2A shows the left guide box (hereinafter referred to as the left guide box) 12 in FIG. 1, and FIG. 2B shows the right guide box (hereinafter referred to as the right guide box) in FIG. ) 12. These are the guide boxes 12 viewed in the direction along the track. Hereinafter, the door that penetrates the left guide box 12 is referred to as a left door 16, and the door that penetrates the right guide box 12 is referred to as a right door 16. FIG. 3 is an enlarged view of the lower part in the left guide box 12 and is a view seen from the home side.

  Each guide box 12 is formed in a cylindrical shape in which both end portions 12a and 12b are opened in a direction along the track (door opening / closing direction). The guide box 12 is formed such that the home side wall portion 12e is formed in a flat plate shape, and the track side wall portion 12f is formed by being bent in a step shape at an intermediate portion in the height direction thereof, so that the upper side of the step portion is formed. The portion 12c and the lower portion 12d of the stepped portion have different shapes in the door thickness direction. In this way, the upper portion 12c of the guide box 12 is formed in a shape recessed toward the home side with respect to the lower portion 12d, so that the platform can secure a thickness that can accommodate a predetermined device in the guide box 12. It can be installed closer to the construction limit of P.

  The door body 16 is disposed in a range extending from the upper side portion 12c to the lower side portion 12d of the guide box 12, and as shown in FIGS. A support bracket 26 attached to the body body 25, a linear rail 27 fixed to the support bracket 26, and a rail cover 28 attached to the door body body 25 are provided. Note that FIG. 3 is drawn with the rail cover 28 omitted.

  The door body 25 includes a frame body portion formed by combining a vertical frame 25a extending vertically and a horizontal frame 25b extending horizontally, and an intermediate frame 25c extending horizontally at an intermediate height position of the vertical frame 25a. Yes. A glass panel 25d is fixed to the upper portion of the frame portion, that is, the upper portion of the intermediate frame 25c. The door body 16 is supported at the upper end portion thereof by a guide roller (not shown).

  As shown in FIGS. 2A and 2B, the horizontal frame 25 b constituting the lower end portion of the door body 25 has a different arrangement height between the left door body 16 and the right door body 16. Specifically, the lower horizontal frame 25 b in the right door body 16 is disposed above the lower horizontal frame 25 b in the left door body 16. In the right door body 16, the lower horizontal frame 25b is joined not to the lower end portion of the vertical frame 25a but to the intermediate portion above it (see FIG. 4, but viewed from the track side). .

  A metal panel 32 is fixed so as to block the space between the lower horizontal frame 25b, the vertical frames 25a, and the intermediate frame 25c. A decorative panel 34 is detachably attached to the home side of the metal panel 32 in a range extending from the intermediate frame 25c to the lower horizontal frame 25b.

  The support bracket 26 has a long and narrow shape disposed so as to extend along the opening / closing direction of the door body 16, and is superimposed on the metal panel 32 as shown in FIGS. 2 (a) and 2 (b). A flat plate-like vertical portion 26a fastened in a state of being fixed, and a flat plate-like horizontal portion 26b fixed to an intermediate height portion of the vertical portion 26a. The vertical portion 26a is superposed on the track side surface of the metal panel 32, and the horizontal portion 26b is disposed so as to protrude horizontally from the vertical portion 26a toward the track side. In the right door body 16, the metal panel 32 is configured to have a height that allows the vertical portion 26 a to be disposed, while the metal panel 32 provided in the left door body 16 is configured to have a height that is approximately twice that of the metal panel 32. ing. The support bracket 26 attached to the metal panel 32 of the left door body 16 is disposed at a position lower than the support bracket 26 of the right door body 16.

  The linear rail 27 is fastened and fixed to the lower surface of the lateral portion 26 b and is disposed so as to extend in the opening and closing direction over the entire length of the support bracket 26. As for the linear rail 27, the guide groove is formed in the intermediate part of the up-down direction in a side surface. The guide grooves are provided on the left and right side surfaces, respectively, and are formed horizontally over the entire length of the linear rail 27.

  The rail cover 28 is fastened to the intermediate frame 25c at its upper end. That is, the rail cover 28 has an upper end attached to the upper side of the support bracket 26 in the door body 25. The rail cover 28 includes a vertical surface portion 28a extending along the intermediate frame 25c in the vertical surface, an upper surface portion 28b projecting from the lower end portion of the vertical surface portion 28a toward the track, and an upper surface portion 28b. And a side surface portion 28c extending downward from the lower end portion. Further, the rail cover 28 is provided with end surface portions 28d at both ends of the upper surface portion 28b and the side surface portion 28c (see FIGS. 5 and 6). The rail cover 28 covers the upper side, the side, and both sides in the length direction of the linear rail 27 and the support bracket 26.

  Both the rail covers 28 have different vertical widths 28a. For this reason, the height position of the upper surface portion 28b continuing to the lower end portion of the vertical surface portion 28a, and the side surface portion 28c and the end surface portion 28d continuing to the upper surface portion 28b are different between the rail covers 28. Specifically, in the rail cover (right rail cover) 28 of the right door body 16, the upper surface portion 28b extends obliquely downward from just below the intermediate frame 25c (FIG. 2B), whereas the left door body. In the sixteen rail covers (left rail cover) 28, the upper surface portion 28b extends obliquely downward from a lower position than the lower end portion of the side surface portion 28c of the right rail cover 28. 2 (a)). For this reason, the upper surface portion 28b of the left rail cover 28 and the side surface portion 28c and the end surface portion 28d of the right rail cover 28 have a height relationship in which a portion that partially overlaps when viewed in the horizontal direction is generated.

  Each door body 16 is provided with a belt member 38 as an example of a long member. The belt member 38 is disposed in a posture extending in the moving direction of the door body, and is fixed to the lower lateral frame 25b via belt brackets 30 (see FIG. 3) at both ends thereof.

  As shown in FIG. 4, the lower horizontal frame 25 b protrudes toward the mating door body 16 from the door frame 16 b side vertical frame 25 a that constitutes the door bottom end of the door body 25. As a result, the end of the belt member 38 on the door bottom side is positioned closer to the mating door body 16 than the door bottom of the door body 25.

  The belt member 38 is formed of a toothed belt, and is arranged in such a posture that the teeth face upward. The belt member 38 is fixed to the lower surface of the lower horizontal frame 25b via the belt bracket 30 at both ends, and is disposed apart from the horizontal frame 25b. Each belt member 38 is disposed below the rail cover 28 of the door body 16.

  Both belt members 38 have different arrangement heights between the left door body 16 and the right door body 16. Specifically, the belt member 38 of the left door 16 shown in FIG. 2A is arranged below the belt member 38 of the right door 16 shown in FIG.

  The belt member 38 is configured to have a width thinner than the thickness of the door body main body 25, and the belt member 38 is provided so as not to protrude from the door body main body 25. In other words, the belt member 38 is displaced in the thickness direction of the door body 16 from the rail cover 28 protruding from the door body main body 25 toward the track side.

  As shown in FIG. 3, the belt bracket 30 on one side (door bottom side in the example) is provided with an adjusting means 42 for adjusting the tension of the belt member 38.

  A maintenance door 40 is provided at a lower portion of the home side wall portion 12e of the guide box 12 at a height corresponding to the belt member 38 to open the belt member 38 and expose the belt member 38 during maintenance of the belt member 38 and the like. .

  Each guide box 12 accommodates a drive device 44 for opening and closing the door body 16 and a support member 48 for supporting a slide block 46 as an example of a guide portion.

  The drive device 44 includes a drive motor 50 as a drive source. The drive motor 50 is driven and controlled by a controller (not shown). The controller is configured to perform drive control of the drive motor 50 based on a control signal transmitted from a centralized control panel or the like of the station according to the train line.

  A drive pulley 52 as an example of a drive member is provided on the output shaft of the drive motor 50. The drive pulley 52 is disposed in a posture that rotates around a horizontal axis and is engaged with the belt member 38.

  The support member 48 includes a leg portion 48a disposed on the bottom plate 54 at an interval in the door opening / closing direction, a mounting plate 48b installed between the leg portions 48a, and a receiving plate fixed to the mounting plate 48b. 48c and a mounting plate 48d fixed on the receiving plate 48c.

  The leg portion 48a is arranged in the vicinity of the track side wall portion 12f in the guide box 12, and a plurality of the leg portions 48a are arranged at a predetermined interval in the door opening / closing direction. These leg portions 48 a are set to a height corresponding to the arrangement height of the lower end portion of the rail cover 28. And the leg part 48a provided in the right guide box 12 shown in FIG.2 (b) is formed higher than the leg part 48a provided in the left guide box 12 shown to Fig.2 (a).

  The receiving plates 48c are arranged at intervals in the door opening / closing direction, and the placing plate 48d is installed on these receiving plates 48c. The slide block 46 is fixed on the mounting plate 48d. In other words, the slide block 46 is supported from below by the mounting plate 48d disposed below it.

  The slide block 46 is for guiding the linear rail 27, and is arranged in parallel at a predetermined interval in the door opening / closing direction in the guide box 12.

  A guide groove extending in the door opening / closing direction is formed on the upper surface of each slide block 46. The guide groove is a groove for guiding the linear rail 27, is formed in a cross-sectional shape corresponding to the linear rail, and is slidable in the length direction without the linear rail 27 being detached.

  The mounting plate 48d and the slide block 46 are disposed above the lower end portion of the rail cover 28, and these are disposed in the rail cover 28. On the other hand, the leg portion 48a, the mounting plate 48b, and the receiving plate 48c are disposed below the lower end portion of the rail cover 28, and these protrude from the rail cover 28 when viewed from the horizontal direction.

  The drive motor 50 is fixed to the mounting plate 48 b via a motor bracket 56. The drive motor 50 arranged in the left guide box 12 shown in FIG. 2A is arranged so that its drive shaft is below the door body 25, while the right side shown in FIG. The drive motor 50 disposed in the guide box 12 is disposed such that its drive shaft is above the lower end of the door body 25.

  A pulley bracket 58 is fixed to the mounting plate 48b and the receiving plate 48c. The pulley bracket 58 is provided so as to stand from the flat plate portion 58a on both sides of the drive pulley 52 by being fastened to the flat plate portion 58a and being attached to the flat plate portion 58a between the lower surfaces of the receiving plates 48c. And a support portion 58b. As shown in FIG. 3, idler pulleys 60 are rotatably supported on the respective support portions 58b.

  Both idler pulleys 60 are disposed on both sides of the drive pulley 52 so as to sandwich the drive pulley 52, and are disposed at the same height as the drive pulley 52. A belt member 38 that passes under the drive pulley 52 is bent upward from both sides of the drive pulley 52 and wound around the idler pulley 60 from above. Therefore, the back side of the belt member 38 is wound around the idler pulley 60, and the belt member 38 is bent along the drive pulley 52 by the idler pulley 60, so that the belt member 38 meshes with the drive pulley 52. The range has been expanded.

  As shown in FIG. 4, one end of the lower horizontal frame 25 b is coupled to the vertical frame 25 a on the door end 16 a side that constitutes the door tip of the door body 25, while the other end is the door body main body. It is provided in a state of projecting in the closing direction from the vertical frame 25a on the side of the door butt 16b constituting the door butt end of 25. In other words, the lower horizontal frame 25b is fixed in a state of protruding toward the mating door body 16. 4 is viewed from the track side, and the left door body 16 shown in FIG. 2A is drawn on the right side of FIG. 4, and the right door body 16 shown in FIG. It is drawn on the left side of 4. In the drawing, a part of the belt member 38 is drawn so as to bulge downward, and this shows a portion wound around the drive pulley 52.

  As shown in FIG. 4, one end of each support bracket 26 is coupled to the vertical frame 25 a on the door end 16 a side that constitutes the door tip of the door body 25, while the other end is connected to the door body 25. It is provided in a state of protruding in the closing direction from the vertical frame 25a on the side of the door bottom 16b constituting the door edge. Both support brackets 26 are arranged at different height positions so as not to interfere with each other.

  As shown in FIGS. 5 and 6, both rail covers 28 are also arranged such that the upper surface portion 28 b, the side surface portion 28 c and the end surface portion 28 d are at different height positions. However, the upper surface portion 28b of the rail cover 28 of the left door body 16 disposed on the lower side is partially included in the height range occupied by the side surface portion 28c of the rail cover 28 of the right door body 16 disposed on the upper side. ing. For this reason, the end face portion 28d of the rail cover 28 of the right door body 16 is formed with a notch 28e at the lower corner portion thereof, thereby preventing the rail covers 28 from interfering with each other. Yes.

  The lower horizontal frame 25b and the belt member 38 of the right door body 16 shown on the left side of FIG. 4 are included in the height range in the vertical direction of the rail cover 28 and the support bracket 26 of the left door body 16 shown on the right side of FIG. It is. However, since the lower horizontal frame 25b and the belt member 38, the rail cover 28, and the support bracket 26 are displaced in the thickness direction of the door body 16, they interfere with each other when the door body 16 is opened and closed. There is no.

  Next, operation | movement of the platform door apparatus 10 which concerns on this embodiment is demonstrated.

  First, in the normal time when the train does not enter, the door bodies 16 and 16 are in the closed position, and the boarding passages 20 and 20 are closed. Specifically, the left door 16 in FIG. 1 is positioned to the left, while the right door 16 in FIG. 1 is positioned to the right. Thereby, the passenger of a platform cannot go out to the track side, and the safety of the passenger is ensured.

  When the train enters, a control signal transmitted from the central control panel or the like is input to the controller in each guide box 12 to drive the drive motor 50. Thereby, the drive pulley 52 rotates forward, for example, and the belt member 38 that meshes with the drive pulley 52 travels. And both door bodies 16 and 16 move to the direction which mutually approaches, and it moves until door bottom 16b mutually adjoins between the guide boxes 12, and the boarding / alighting passage 20 is open | released. At this time, both rail covers 28 are at different height positions, and within the overlapping range, the other rail cover 28 passes through the notch 28e formed in the end face 28d. Both rail covers 28 do not interfere with each other. Moreover, since the lower side frame 25b and the belt member 38 are at different height positions in the left door body 16 and the right door body 16, they do not interfere with each other. Furthermore, since the rail cover 28, the lower horizontal frame 25b, and the belt member 38 are displaced in the thickness direction of the door body 16, they do not interfere with each other.

  As described above, according to this embodiment, the slider block 46 is supported from below the rail cover 28 by the support member 48, and the linear rail 27 is supported by the slider block 46. While maintaining the support state, it is possible to prevent foreign matter from adhering to the linear rail 27 and to improve the appearance. In addition, since both the rail covers 28 are arranged at different height positions and the both belt members 38 are arranged at different height positions, both the door bodies 16 move between the guide boxes 12. It is possible to place both guide boxes 12 close to each other so that the rail covers 28 and the like overlap each other, and the platform door device 10 can also be installed on the platform P where a vehicle with a narrow entrance / exit entrance enters. It becomes possible.

  In the present embodiment, the belt member 38 and the rail cover 28 are shifted in the thickness direction of the door body 16, and the belt member 38 of the right door body 16 is connected to the upper surface portion 28 b and the side surface of the rail cover 28 of the left door body 16. Since the two belt members 38 and the rail covers 28 are vertically displaced so that they do not overlap each other, the area required for the installation is reduced. The vertical width can be compressed. In addition, in the present embodiment, the drive pulley 52 and the idler pulley 60 are arranged side by side in the horizontal direction, and the belt member 38 is arranged horizontally except for the portion around which the drive pulley 52 is wound. The vertical width of the necessary area can be reduced. As a result, the height position of the intermediate frame 25c of the door body 25 can be set to a low position, and the area to which the glass panel 25d is attached can be expanded in the vertical direction. Thereby, it can be made more visible and excellent in daylighting.

  In this embodiment, since the belt member 38 is disposed within the thickness range of the door body 25, the thickness of the door body 16 can be reduced correspondingly, and the lower side of the guide box 12 can be reduced. The thickness of the portion 12d can be reduced. As a result, the space occupied by the guide box 12 on the platform P can be further reduced.

  In this embodiment, since the belt member 38 protrudes downward from the rail cover 28, the rail cover 28 may interfere with maintenance even when the belt member 38 requiring maintenance is used. Can be suppressed.

  In the above embodiment, the belt member 38 is caused to travel by the drive motor 50 and the door body 16 is opened and closed. Instead, the long member is configured by a rack and the drive motor 50 is driven. A configuration may be adopted in which a pinion (drive member) is provided on the shaft and the rack and the pinion mesh with each other so that the drive force is transmitted from the pinion to the rack and the door body 16 is opened and closed. In the configuration arranged in a straight line like a rack, an idler is unnecessary, so that a simpler configuration can be achieved. Further, the long member may be constituted by a chain member instead of the belt member 38, and the drive member may be constituted by a sprocket instead of the drive pulley 52.

  In the above-described embodiment, the linear rail 27 is attached to the lower surface of the lateral portion 26b of the support bracket 26, while the slider block 46 is disposed in a posture in which the guide groove is formed on the upper surface. The horizontal portion 26b may be omitted, the linear rail 27 may be fixed to the vertical portion 26a of the support bracket 26, and the slider block 46 may be disposed in a posture in which the guide groove is formed on the side surface. Even in this case, the slide block 46 is arranged on the placement plate 48d and fastened.

It is the front view which looked at the embodiment of the platform door device by the present invention from the platform side. It is sectional drawing which looked at the said platform door apparatus in the direction along a track | orbit, (a) shows the left guide box of FIG. 1, (b) has shown the right guide box of FIG. It is a figure which expands and shows the inside of the left guide box of FIG. It is the schematic which looked at the platform door device of Drawing 1 from the track side, and shows the attachment state of a belt member, a support bracket, and a linear rail. It is the perspective view which looked at the platform door device of Drawing 1 from the track side, (a) shows the whole, (b) shows the rail cover provided in the door of the left side of Drawing 1, (c) is a figure. The rail cover provided in the door body of the right side of 1 is shown. It is a figure which shows a mode that a rail cover is overlapping. It is the schematic which shows the conventional platform door apparatus.

Explanation of symbols

12 Guide Box 16 Door 27 Linear Rail 28 Rail Cover 28e Notch 38 Belt Member 46 Slide Block (Example of Guide)
48 support member 50 drive motor 52 drive pulley 60 idler pulley

Claims (6)

A pair of guide boxes are installed on the platform at a distance from each other, and each of the guide boxes is a home door device in which a door body is supported so as to move between the two guide boxes so as to move forward.
A linear rail that is disposed so as to extend in the moving direction of each door body, and is provided so as to protrude toward the door body on the other side from the door bottom of the door body,
A long member that is disposed so as to extend in the moving direction of each door body, and that one end is positioned closer to the door body on the other side than the door butt of the door body,
A driving member that is arranged in each guide box and transmits a driving force for moving the door in the moving direction to the long member;
A rail cover that is provided on each of the door bodies, and that covers the top and sides of the linear rail;
Each of the guide boxes is provided with a guide portion that slidably supports the linear rail in the rail cover, and a support member that supports the guide portion from below the rail cover.
The portions protruding from the door butt in the rail covers are set at different heights so that they do not interfere with each other even if the door bodies move between the guide boxes,
The both long members are set to different heights so that they do not interfere with each other even if the door bodies move between the guide boxes. The rail cover and the long member are arranged to be displaced in the thickness direction of the door body,
The rail cover provided on the one door body and the long member provided on the other door body are overlapped when viewed in the horizontal direction when both door bodies move between the guide boxes. The platform door device according to claim 1, wherein the platform door device is set at a height position. The rail cover in which the part protruding from the door butt of the both rail covers is arranged above the counterpart rail cover is provided with a notch at the lower end thereof.
Both rail covers are set to a height position where overlapping portions are seen when viewed in the horizontal direction when both door bodies are moved between the guide boxes so that part of the other rail cover enters the notch. The platform door device according to claim 1, wherein the platform door device is provided.   The platform door device according to any one of claims 1 to 3, wherein the long member is configured to fit within a thickness range of the door body. The long member is constituted by a belt member whose both ends are fixed to the door body,
The drive member is constituted by a drive pulley provided on a drive shaft of a motor,
On both sides of the drive pulley, a pair of idler pulleys are provided at the same height as the drive pulley,
5. The platform door device according to claim 1, wherein the belt member is wound around the drive pulley so as to pass between the drive pulley and each of the idler pulleys. . The long member is constituted by a belt member whose both ends are fixed to the door body,
The platform door device according to any one of claims 1 to 4, wherein the belt member is set so as to protrude downward from the rail cover.

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