JP2015105054A - Door device for railway vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrict breakdown of a direct-acting actuator.SOLUTION: A mobile device 3 includes a drive device 20, a first mobile part 30, a second mobile part 40, a first guide part 70, and a first regulation part 90, in order to move a sliding door 2a between a closed position and an open position using drive of the drive device 20. The first mobile part 30 is connected to a rod 21a of an air cylinder 21 of the drive device 20. The first guide part 70 guides the sliding door 2a in a longitudinal direction and also in a width direction orthogonal to the longitudinal direction. The second mobile part 40 links the first mobile part 30 to the sliding door 2a and moves in the longitudinal direction accompanying movement of the first mobile part 30. Further, the second mobile part 40 moves in the width direction relative to the first mobile part 30 by accompanying movement of the sliding door 2a in the width direction. The first regulation part 90 regulates movement of the first mobile part 30 in the width direction.

Description

  The present invention relates to a railcar door device for opening and closing a gate for a railcar.

  Patent Document 1 includes an air cylinder (direct acting actuator), and a rail vehicle including an open / close drive mechanism that opens and closes the entrance / exit by moving the left and right sliding doors in opposite directions by driving the air cylinder. A slide-push type door device is described. The open / close drive mechanism of the slide push type door device for a railway vehicle is configured such that when the sliding door is moved toward the closed state by driving the air cylinder, the sliding door is moved outwardly in the sleeper direction immediately before the sliding door reaches the closed state. It has a sleeper direction guide mechanism for guiding. Each of the sliding door and the piston rod of the air cylinder and the rod that moves in the opposite direction to the movement of the other sliding door and the piston rod are connected by a connecting mechanism. Each connecting mechanism has two connecting members that slide relative to each other as the sliding door moves in the sleeper direction. With this configuration, when the left and right sliding doors are closed, the left and right sliding doors can be moved outward in the sleeper direction.

JP 2012-218690 A

  In the connection mechanism in the slide push type door device for a railway vehicle described in Patent Document 1, one connection member is fixed to the piston rod, the other connection member is fixed to the sliding door, and these connection members are relatively in the sleeper direction. It is configured to be slidable. However, since one of the connecting members is suspended from the piston rod, if the connecting members do not smoothly move relative to each other as the sliding door moves in the sleeper direction, the force in the sleeper direction is directly applied to the piston rod. Act on. When the force in the sleeper direction acts on the piston rod in this way, there arises a problem that the air cylinder is damaged, for example, a seal between the piston and the cylinder in the air cylinder is damaged.

  Accordingly, an object of the present invention is to provide a railcar door device capable of suppressing damage to a direct acting actuator.

  The door device for a railway vehicle of the present invention has a door suspension metal that engages with an upper rail provided along an upper edge of a boarding gate provided on a side wall extending in the longitudinal direction of the railway vehicle, A sliding door supported movably along the upper rail; and a moving device for moving the sliding door between a closed position for closing the entrance and an opening position for opening the entrance. The moving device includes a driving device having a direct acting actuator capable of expanding and contracting the rod along the longitudinal direction, and a first movement connected to the rod and moving in the longitudinal direction as the rod expands and contracts. A second moving part that connects the first moving part and the sliding door, moves in the longitudinal direction together with the sliding door as the first moving part moves, and directs the sliding door toward the closed position And a first guide that guides the sliding door in the width direction of the railway vehicle perpendicular to the longitudinal direction immediately before the sliding door reaches the closed position when moved. The second moving unit moves in the width direction with respect to the first moving unit together with the sliding door as the width direction is guided by the first guide unit, and the moving device further includes the first moving unit. It has the 1st control part which controls the movement to the said width direction of a moving part.

  According to this, the rod of the direct acting actuator is connected to the second moving part and the sliding door via the first moving part whose movement in the width direction is restricted by the first restricting part. For this reason, even when the sliding door is moved in the width direction by the first guide when the rod of the direct acting actuator of the drive device is expanded and contracted to open and close, the force in the width direction does not easily act on the rod. . For this reason, it becomes possible to suppress damage to the direct acting actuator. Furthermore, since it is not necessary to change the structure of the drive device itself, an existing drive device can be adopted, and an increase in manufacturing cost can be suppressed.

  In the present invention, it is preferable that the first restricting portion restricts movement of the first moving portion in the vertical direction. As a result, even when the sliding door is opened and closed by expanding and contracting the rod of the direct acting actuator of the driving device, even if the movement of the sliding door in the longitudinal direction is obstructed (for example, when an object is caught in the sliding door), the rod It becomes difficult for the force in the vertical direction to act. For this reason, it becomes possible to suppress that a direct acting actuator is damaged more.

  In the present invention, the first restricting portion includes a fixed rail that is fixed to the upper rail and extends in the longitudinal direction, and the first moving portion is disposed in the longitudinal direction with respect to the fixed rail. It is preferable to have a slider that is movably supported. Thereby, the movement control in the width direction and the vertical direction of the first moving unit can be realized with a simple configuration.

  Further, in the present invention, two sliding doors are provided, and the moving device is configured such that the door tips are brought into contact with each other in the closed position, and the door tips are separated from each other in the open position. It is preferable to move the two sliding doors in opposite directions between the closed position and the open position so as to achieve a closed state. Thereby, it becomes the structure by which opening / closing of a passenger door is performed by the movement of two sliding doors.

  In the present invention, the driving device further includes a moving body that moves in a direction opposite to the rod as the rod expands and contracts, and the second moving portion is one of the first moving portion and the one moving portion. And the first guide part guides the one sliding door. And the said movement apparatus is connected with the said mobile body, connects the 3rd moving part which moves to the said longitudinal direction with the movement of the said mobile body, the said 3rd moving part, and the said other sliding door, A fourth moving part that moves in the longitudinal direction together with the other sliding door as the third moving part moves, and the other sliding door is closed when the other sliding door is moved toward the closed position. The second guide portion further guides the other sliding door in the same direction as the one sliding door in the width direction immediately before reaching the position. The fourth moving part moves in the width direction with respect to the third moving part together with the other sliding door in accordance with the guide in the width direction by the second guide part, and the moving device further includes: It is preferable to have the 2nd control part which controls the movement to the said width direction of a 3rd moving part. Thereby, the moving body is connected with the 4th moving part and the other sliding door via the 3rd moving part by which the movement to the width direction was controlled by the 2nd restricting part. For this reason, when opening and closing both sliding doors, even if the other sliding door moves in the width direction by the second guide portion, the force in the width direction does not easily act on the moving body. For this reason, it becomes possible to suppress that a drive device is damaged.

  According to the railway vehicle door device of the present invention, the rod of the direct acting actuator is connected to the second moving portion and the sliding door via the first moving portion whose movement in the width direction is restricted by the first restricting portion. ing. For this reason, even when the sliding door is moved in the width direction by the first guide when the rod of the direct acting actuator of the drive device is expanded and contracted to open and close, the force in the width direction does not easily act on the rod. . For this reason, it becomes possible to suppress damage to the direct acting actuator. Furthermore, since it is not necessary to change the structure of the drive device itself, an existing drive device can be adopted, and an increase in manufacturing cost can be suppressed.

It is a principal part front view of the railcar door device which is one Embodiment of this invention, and is a figure which shows the condition when a sliding door exists in a closed position. It is a principal part front view which shows the condition when the sliding door of the door apparatus shown in FIG. 1 exists in an open position. It is a fragmentary perspective view of the door apparatus shown in FIG. (A) is the enlarged view which abbreviate | omitted a part of moving apparatus in the area | region A shown in FIG. 2, (b) is a side view when the sliding door and 1st guide part of FIG. 4 (a) are seen from the left. is there. (A) is an enlarged view of the region B shown in FIG. 2, (b) is a side view when the sliding door and the first guide part of FIG. 5 (a) are viewed from the right side. (A) is an enlarged view of the area A shown in FIG. 2, and (b) is a side view when the door device shown in FIG. 6 (a) is viewed from the right side. (A) is a side view of a slider, (b) is an arrow view along the VII-VII line shown to Fig.7 (a). It is a top view of a 1st guide part, (a) shows the arrangement condition of a roller group when a sliding door exists in an open position, (b) shows the arrangement condition of a roller group when a sliding door exists in a closed position. (A) is an enlarged view of a region C shown in FIG. 2, and (b) is a side view when the door device shown in FIG. 9 (a) is viewed from the right side. (A) is a side view when the door device shown in FIG. 1 is viewed from the left side, and (b) is a side view when the door device shown in FIG. 1 is viewed from the right side.

  Hereinafter, a railcar door device according to an embodiment of the present invention will be described with reference to FIGS.

  The railway vehicle door device 1 according to the present embodiment opens and closes an entrance / exit 102 formed on a side wall 101 extending in the longitudinal direction of the railway vehicle 100 (that is, the traveling direction of the railway vehicle and in the left-right direction in FIG. 1). This is a double-open door device. 1 to 3 are views when viewed from inside the vehicle with the interior material around the entrance 102 being removed.

  As shown in FIGS. 1 to 3, the door device 1 includes two sliding doors 2 a and 2 b and a moving device 3 that moves the two sliding doors 2 a and 2 b in opposite directions along the longitudinal direction. The moving device 3 moves the two sliding doors 2a and 2b between a closed position where the entrance 102 is closed and an open position where the entrance 102 is opened. In the closed position, the two sliding doors 2a and 2b are arranged in a state where the door ends of each other face each other (see FIGS. 1 and 3). In the open position, the two sliding doors 2a and 2b are arranged in a state where the door tips are separated from each other (see FIG. 2). Thereby, it becomes the structure of the door apparatus 1 in which opening / closing of the entrance / exit 102 is performed by movement of the two sliding doors 2a and 2b.

  Each sliding door 2a, 2b has two door suspensions 10a, 10b that respectively engage with a long upper rail 103 provided along the upper end of the entrance 102. In addition, since the door suspension metal 10a, 10b of each sliding door 2a, 2b is the same structure, the door suspension metal 10a, 10b of one sliding door 2a will be described, and the door suspension metal 10a, 10b of the other sliding door 2b will be described. Is omitted.

  As shown in FIG. 2, the door suspension 10 a of the sliding door 2 a is provided at the upper end of the sliding door 2 a on the door bottom (end farthest from the sliding door 2 b in the longitudinal direction) side. In FIG. 4, in order to make the configuration of the door suspension 10 a easy to understand, it is a part of the components of the moving device 3 shown in FIG. 2 and is in the width direction of the railway vehicle (direction perpendicular to the longitudinal direction). The member which overlaps with the door hanging metal 10a is omitted.

  As shown in FIG. 4, the door hanging metal 10 a includes a support portion 11 and a roller 12. As shown in FIG. 4B, the support portion 11 has an L-shaped cross section, and the lower end horizontal portion 11 a is connected to the sliding door 2 a via a pin 13. The support portion 11 is connected to the sliding door 2 a so as to be rotatable about the vertical axis of the pin 13. A shaft portion 11 c is formed on the vertical portion 11 b of the support portion 11. The shaft portion 11 c protrudes toward the upper rail 103 in the width direction. The roller 12 is supported by the shaft portion 11c so as to be rotatable about the shaft of the shaft portion 11c. As shown in FIG. 4B, the upper rail 103 has an L-shaped cross section, and the roller 12 is disposed on the lower end horizontal portion 103a.

  As shown in FIG. 2, the door suspension 10b of the sliding door 2a is provided at the upper end of the sliding door 2a on the side of the door tip (the end closest to the sliding door 2b in the longitudinal direction). As shown in FIG. 5, the door suspension 10b has the same configuration as the door suspension 10a. In other words, the door suspension 10 b also has the support portion 11 and the roller 12, and the support portion 11 is rotatably connected by the pin 13. With this configuration, the sliding door 2a is disposed so as to be hung from the upper rail 103 by the two door suspensions 10a and 10b. In addition, the sliding door 2b is also arrange | positioned so that it may hang from the upper rail 103 with the two door suspension metal 10a, 10b.

  As shown in FIG. 3, the moving device 3 includes a driving device 20, a first moving unit 30, a second moving unit 40, a third moving unit 50, a fourth moving unit 60, and a first guide unit 70. And a second guide part 80, a first restricting part 90, and a second restricting part 95. The drive device 20 includes an air cylinder 21 that is long along the longitudinal direction, two rack gears 22 and 23, and two pinion gears 24 and 25. The air cylinder 21 is fixed to the side wall 101 above the upper rail 103. Moreover, the air cylinder 21 is arrange | positioned so that the rod 21a can be expanded-contracted along a longitudinal direction.

  The rack gears 22 and 23 extend along the longitudinal direction and are arranged with the air cylinder 21 interposed therebetween in the vertical direction. More specifically, as shown in FIG. 1, the rack gear 22 is disposed above the air cylinder 21 and is longer in the longitudinal direction than the rack gear 23. These rack gears 22 and 23 are slidably arranged along the longitudinal direction. Further, the rack gear 22 is fixed to the first moving part 30 to which the left end in FIG. 1 (door end side end of the sliding door 2a) is connected to the tip of the rod 21a. The pinion gear 24 is disposed on one end side (the tip end side of the rod 21a) of the cylinder case 21b of the air cylinder 21, and the pinion gear 25 is disposed on the other end side of the cylinder case 21b. These pinion gears 24 and 25 mesh with the rack gear 22. The pinion gear 25 is also meshed with the rack gear 23. Thereby, when the rod 21a of the air cylinder 21 expands and contracts, the rack gear 22 moves in the same direction together with the rod 21a. As the rack gear 22 moves at this time, the pinion gears 24 and 25 rotate. As the pinion gear 25 rotates, the rack gear 23 moves in the opposite direction to the rack gear 22.

  As shown in FIG. 6, the first moving unit 30 includes a connection unit 31 connected to the tip of the rod 21 a and two sliders 32. As shown in FIG. 6B, the connecting portion 31 has a substantially L-shaped cross section. A bracket 33 protruding in the width direction is formed on the vertical portion 31a of the connecting portion 31. A hole penetrating in the longitudinal direction is formed in the bracket 33, and the tip of the rod 21 is passed through the hole, and the bracket 33, that is, the connecting portion 31 and the tip of the rod 21a are connected by a plurality of nuts. Yes. A protruding portion 31 c that protrudes upward is formed at the tip of the horizontal portion 31 b of the connecting portion 31. As shown in FIGS. 3 and 6, two protrusions 34 protruding in the width direction are formed on the protrusion 31c. These protrusions 34 are spaced apart from each other in the longitudinal direction. A retaining plate 35 as a retaining plate for a slide plate 41 (described later) is fixed to the tip of each projection 34 with a bolt.

  As shown in FIG. 7A, the two sliders 32 are arranged apart from each other in the longitudinal direction. As shown in FIG. 6B, these sliders 32 are fixed to the connecting portion 31 with bolts in a state where the upper surface thereof is in contact with the lower surface of the horizontal portion 31b. The slider 32 in the present embodiment is a known slider supported by a fixed rail 92 described later so as to be movable only in the longitudinal direction. As shown in FIG. 7B, a concave groove 32 a extending in the longitudinal direction is formed on the lower surface of each slider 32. A plurality of steel balls 32b are provided along the longitudinal direction on both side surfaces of the concave groove 32a. Note that the plurality of steel balls may be annularly connected to each other on each side surface. In this case, as the slider 32 moves in the longitudinal direction, the plurality of steel balls circulate. For this reason, the degree of wear of the steel balls is made uniform, and the life of the slider is prolonged.

  The 1st control part 90 has the support part 91 and the fixed rail 92, as shown in FIG.6 (b). The support portion 91 has an L-shaped cross-sectional shape, and the vertical portion 91 b is fixed to the vertical portion 103 b of the upper rail 103. As shown in FIG. 1, the support portion 91 has substantially the same length as the upper rail 103 in the longitudinal direction. As shown in FIG. 6, the fixed rail 92 is fixed on the horizontal portion 91 a of the support portion 91, and is fixed to the upper rail 103 via the support portion 91. The fixed rail 92 is formed such that the upper half of the fixed rail 92 can be disposed in the recessed groove 32a. As shown in FIGS. 1 and 2, the fixed rail 92 extends from the approximate center of the support portion 91 to the left end portion in the longitudinal direction. That is, the fixed rail 92 has such a length that the slider 32 does not come off from the fixed rail 92 when the sliding door 2a moves between the closed position and the open position. As shown in FIG. 7A, the fixed rail 92 has grooves 92a formed on both side surfaces along the longitudinal direction. These grooves 92 a are formed over the entire length of the fixed rail 92. Each groove 92a is formed in a curved surface shape corresponding to a substantially semicircular portion of the steel ball 32b. Thus, by attaching the slider 32 to the fixed rail 92, the fixed rail 92 supports the slider 32 so as to be movable along the longitudinal direction while restricting the movement of the slider 32 in the width direction and the vertical direction. As described above, the first moving unit 30 is configured to be movable in the longitudinal direction by driving the air cylinder 21 (extension and contraction of the rod 21a) in a state where movement in the width direction and the vertical direction is regulated by the first regulating unit 90. Has been.

  As illustrated in FIG. 6, the second moving unit 40 includes a slide plate 41 and a fixing unit 42. As shown in FIG. 6, the slide plate 41 is a plate-like member formed such that the thickness of the upper end portion is thicker than other portions. In the upper end portion of the slide plate 41, two holes 41a penetrating in the thickness direction are formed. Since the projections 34 are inserted into the holes 41a and the retaining plate 35 is provided, even if the slide plate 41 slides in the width direction with respect to the projection 34 (first moving unit 30), the slide plate 41 has the projection 34. It is supported without coming off. As shown in FIG. 6, the lower end portion of the fixing portion 42 is fixed to the upper end of the sliding door 2a, and the upper end portion is fixed to the lower end portion of the slide plate 41 by bolts. Thus, even if the sliding door 2a moves not only in the longitudinal direction but also in the width direction, the second moving unit 40 is configured to be movable along with the movement. Further, the second moving unit 40 moves the sliding door 2a in the same direction as the first moving unit 30 moves in the longitudinal direction.

  As shown in FIG. 4, the first guide unit 70 supports two guide rails 71 and 72, a support unit 73 that supports the guide rail 71, two roller sets 74 and 75, and a roller set 74. It has a roller support portion 76 and a roller support portion 77 that supports the roller set 75. The support portion 73 has an L-shaped cross-sectional shape, and the vertical portion 73b is fixed to the vertical portion 103b of the upper rail 103 via the vertical portion 91b. As shown in FIG. 1, the support portion 73 has substantially the same length as the guide rail 71 in the longitudinal direction and is arranged in substantially the same positional relationship. As shown in FIG. 4, the guide rail 71 is fixed on the horizontal portion 73 a of the support portion 73. As shown in FIGS. 4 and 8, the guide rail 71 has a groove 71 a that opens upward. As shown in FIG. 8, the groove 71 a extends in the longitudinal direction from the door-end side end portion (left side end portion in the figure) toward the door tip side, and in the vicinity of the door tip side end portion (right side end portion in the drawing). In FIG. 5, the upper rail 103 is bent in the width direction (vehicle outer side).

  As shown in FIG. 4, the roller support portion 76 has an L-shaped cross-sectional shape, and the vertical portion 76 b is fixed to the support portion 11 of the door suspension 10 a on the sliding door 2 a side. The roller set 74 has two rollers 74a partially disposed in the groove 71a. As a result, the roller set 74 moves along the groove 71 a of the guide rail 71. These rollers 74a are spaced apart from each other along the longitudinal direction, and are rotatably supported by each shaft member 74b. The shaft member 74b is fixed to the horizontal portion 76a of the roller support portion 76 and extends in the vertical direction. Each roller 74 a is configured to be rotatable about the vertical axis of the shaft member 74 b on the lower surface side of the horizontal portion 76 a of the roller support portion 76.

  As shown in FIGS. 4B and 5, the guide rail 72 is fixed to the lower surface of the horizontal portion 91 a of the support portion 91. The guide rail 72 has a groove 72a that opens downward. As shown in FIG. 8, the groove 72a also extends in the longitudinal direction from the door-end side end portion (left end portion in the figure) toward the door-end side in the same manner as the groove 71a. In the vicinity of the middle right end), it is bent in the width direction toward the upper rail 103 (vehicle outer side). As shown in FIG. 8, the guide rails 71 and 72 are partially overlapped in the vertical direction. That is, the door end side portion of the guide rail 71 overlaps the door bottom side portion of the guide rail 72.

  As shown in FIG. 5, the roller support portion 77 has an L-shaped cross-sectional shape, and the vertical portion 77b is fixed to the support portion 11 of the door hanging metal 10b on the sliding door 2a side. The roller set 75 has two rollers 75a partially disposed in the groove 72a. As a result, the roller set 75 moves along the groove 72 a of the guide rail 72. These rollers 75a are spaced apart from each other along the longitudinal direction, and are rotatably supported by each shaft member 75b. The shaft member 75b is fixed to the horizontal portion 77a of the roller support portion 77 and extends in the vertical direction. Each roller 75 a is configured to be rotatable about the vertical axis of the shaft member 75 b on the upper surface side of the horizontal portion 77 a of the roller support portion 77.

  As shown in FIG. 9, the third moving unit 50 includes a connecting portion 51 that is connected to an end portion of the rack gear 23 (a door-end side end portion of the sliding door 2 b), and two sliders 52. As shown in FIG. 9B, the connecting portion 51 has a substantially L-shaped cross section. An end portion of the rack gear 23 is connected to the vertical portion 51 a of the connection portion 51. At the upper end of the vertical portion 51a, a pressing member 56 extending in the longitudinal direction from the door bottom of the sliding door 2b toward the door tip is provided. As shown in FIG. 1, the door device 1 is provided with a detection unit 9 that detects an open / closed state of the door device 1. The detection unit 9 is disposed at a position overlapping the pinion gear 25 in the width direction. The pressing member 56 moves in the longitudinal direction along with the movement of the rack gear 23, that is, the sliding door 2b, and presses the switch of the detecting unit 9 when the sliding doors 2a and 2b are in the closed position. Thereby, it is possible to detect the opening / closing state of the entrance 102 by the door device 1.

  As shown in FIG. 9B, a protruding portion 51c protruding downward is formed at the tip of the horizontal portion 51b of the connecting portion 51. As shown in FIGS. 3 and 9, two protrusions 54 are formed on the protrusion 51c. These protrusions 54 have the same configuration as the protrusion 34 described above, and a retaining plate 55 is fixed to the tip by bolts.

  The two sliders 52 have the same configuration as the slider 32 described above. As shown in FIG. 9B, the two sliders 52 are connected to the connecting portion 51 by bolts in contact with the lower surface of the horizontal portion 51b of the connecting portion 51. It is fixed. The groove 52a and the steel ball 52b of the slider 52 are the same as the groove 32a and the steel ball 32b as shown in FIG.

  As shown in FIG. 9B, the second restricting portion 95 includes a support portion 96 and a fixed rail 97. The second restricting portion 95 is disposed symmetrically with the first restricting portion 90 with respect to a vertical line passing through the center of the entrance 102. That is, the support portion 96 has the same configuration as the support portion 91 and the fixed rail 97 has the same configuration as the fixed rail 92. The support portion 96 has a vertical portion 96b fixed to the vertical portion 103b of the upper rail 103, and has substantially the same length as the upper rail 103 in the longitudinal direction. The fixed rail 97 is fixed on the horizontal portion 96a, and has an upper half that can be disposed in the concave groove 52a. The fixed rail 97 has such a length that the slider 52 does not come off the fixed rail 97 when the sliding door 2b moves between the closed position and the open position. The groove 97a of the fixed rail 97 corresponds to the groove 92a as shown in FIG. Accordingly, the fixed rail 97 can be moved along the longitudinal direction while the fixed rail 97 restricts the movement of the slider 52 in the width direction and the vertical direction by attaching the slider 52 similarly to the fixed rail 92. To support. As described above, the third moving unit 50 is moved in the longitudinal direction in accordance with the movement of the rack gear 23 that moves as the air cylinder 21 is driven in a state where the movement in the width direction and the vertical direction is restricted by the second restricting unit 95. It is configured to be movable.

  As illustrated in FIG. 9, the fourth moving unit 60 includes a slide plate 61 and a fixing unit 62. As shown in FIG. 9, the slide plate 61 is a plate-like member formed in such a manner that the thickness of the upper end portion is thicker than other portions, like the slide plate 41. In the upper end portion of the slide plate 61, two holes 61a penetrating in the thickness direction are formed. Since the projections 54 are inserted into the holes 61a and the retaining plate 55 is provided, even if the slide plate 61 slides in the width direction with respect to the projection 54 (the third moving portion 50), the slide plate 61 has the projection 54. It is supported without coming off. As shown in FIG. 9, the fixed portion 62 has a lower end portion fixed to the upper end of the sliding door 2 b and an upper end portion fixed to the lower end portion of the slide plate 61 by a bolt. Thus, the 4th moving part 60 is comprised so that a movement is possible with the movement of the width direction of the sliding door 2b. Further, the fourth moving unit 60 moves the sliding door 2b in the same direction as the third moving unit 50 moves in the longitudinal direction.

  As shown in FIG. 9, the second guide portion 80 supports two guide rails 81 and 82, a support portion 83 that supports the guide rail 81, two roller sets 84 and 85, and the roller set 84. It has a roller support portion 86 and a roller support portion 87 that supports the roller set 85. The second guide part 80 is arranged symmetrically with the first guide part 70 with respect to a vertical line passing through the center of the entrance 102. That is, the support portion 83 has the same configuration as the support portion 73, and the vertical portion 83b is fixed to the vertical portion 103b of the upper rail 103 via the vertical portion 96b. As shown in FIG. 1, the support portion 83 has substantially the same length as the guide rail 81 in the longitudinal direction and is arranged in the same positional relationship. The guide rail 81 is fixed on the horizontal portion 83 a of the support portion 83. The guide rail 81 has the same configuration as the guide rail 71. That is, the groove 81a of the guide rail 81 extends in the longitudinal direction from the door butt side end portion of the sliding door 2b toward the door tip side, and in the vicinity of the door tip side end portion, in the width direction and on the upper rail 103 side ( It is bent to the outside of the vehicle.

  The roller support portion 86 has the same configuration as the roller support portion 76, and the vertical portion 86b is fixed to the support portion 11 of the door suspension metal 10a on the sliding door 2b side. The roller set 84 also has two rollers 84a partially disposed in the groove 81a. Like the roller set 74, these rollers 84a are rotatably supported by the shaft member 84b on the lower surface side of the horizontal portion 86a of the roller support portion 86, as shown in FIG. Thereby, the roller set 84 moves along the groove 81 a of the guide rail 81.

  As illustrated in FIG. 9B, the guide rail 82 is fixed to the lower surface of the horizontal portion 96 a of the support portion 96. The guide rail 82 has the same configuration as the guide rail 72. That is, the groove 82a of the guide rail 82 extends in the longitudinal direction from the door butt side end portion of the sliding door 2b toward the door tip side, and is in the width direction near the door tip side end portion and on the upper rail 103 side ( It is bent to the outside of the vehicle. In the guide rails 81 and 82, similarly to the guide rails 71 and 72, the door end side portion of the guide rail 81 overlaps the door bottom side portion of the guide rail 82.

  The roller support portion 87 has the same configuration as the roller support portion 77, and the vertical portion 87b is fixed to the support portion (not shown: the same configuration as the support portion 11) of the door hanging metal 10b on the sliding door 2b side. The roller set 85 also includes two rollers 85a partially disposed in the groove 82a. As in the roller set 75, these rollers 85a are provided as shaft members (not shown: similar to the shaft member 75b) on the upper surface side of the horizontal portion 87a of the roller support portion 87, as shown in FIG. 9B. It is rotatably supported. As a result, the roller set 85 moves along the groove 82 a of the guide rail 82.

  Then, the opening / closing operation | movement of the sliding doors 2a and 2b of the door apparatus 1 is demonstrated below. The door device 1 opens and closes the sliding doors 2 a and 2 b by driving the driving device 20 of the moving device 3. First, the operation when the sliding doors 2a and 2b are moved from the opened state to the closed state (from the open position to the closed position) will be described.

  When the sliding doors 2a and 2b are arranged at the open position, the roller sets 74 and 75 are arranged at the door-side end of the sliding door 2a of the corresponding guide rails 71 and 72 as shown in FIG. The sliding door 2a is disposed at a position slightly separated from the inner surface of the side wall 101 via the door hanging metal 10a, 10b (see FIGS. 4B and 5B). At this time, the slide plate 41 of the second moving unit 40 connected to the sliding door 2a is disposed at a position close to the retaining plate 35 as shown in FIG. The roller sets 84 and 85 are also arranged at the end of the sliding edge 2b of the guide rails 81 and 82 on the door bottom side. And the sliding door 2b is arrange | positioned in the position slightly away from the inner surface of the side wall 101 similarly to the sliding door 2a, as shown in FIG.9 (b). At this time, the slide plate 61 of the fourth moving unit 60 is disposed at a position close to the retaining plate 55.

  When the air cylinder 21 of the driving device 20 is driven and the rod 21a shown in FIG. 2 is contracted as shown in FIG. 1, the rack gear 22 moves in the same direction as the movement direction of the rod 21a and the rack gear 23 moves in this movement direction. Move in the opposite direction. Along with the movement of the rod 21a, the first moving unit 30 moves in the same direction as the movement direction of the rod 21a. At this time, since the two sliders 32 are restricted from moving in the width direction and the vertical direction by the fixed rail 92, the first moving unit 30 moves only in the longitudinal direction. The sliding door 2 a connected via the first moving unit 30 and the second moving unit 40 also moves together with the first moving unit 30. At this time, the roller sets 74 and 75 are first guided in the grooves 71a and 72a of the guide rails 71 and 72 and moved in the longitudinal direction. Then, immediately before the sliding door 2a reaches the closed position, as shown in FIG. 8B, the roller sets 74 and 75 are tilted and moved to the outside of the vehicle by the guides of the grooves 71a and 72a. The sliding door 2a reaches the closed position by 40 sliding movements. As the roller sets 74 and 75 move to the outside of the vehicle, the door suspensions 10a and 10b of the sliding door 2a are inclined and moved to the outside of the vehicle as shown in FIG. Thereby, the sliding door 2a is arranged closer to the side wall 101 in the closed position than in the open position. For this reason, the peripheral part of the sliding door 2a is pressed by the elastic member (not shown) provided in the side wall 101 around the entrance / exit 102.

  As the sliding door 2a moves to the vehicle outer side, the second moving unit 40 also moves in the same direction. At this time, as shown in FIG. 10A, the slide plate 41 slides with respect to the protrusion 34 (first moving unit 30) and moves to the outside of the vehicle. In other words, the sliding door 2a can also move to the vehicle outer side by the sliding movement of the second moving unit 40 as the roller sets 74, 75 move to the vehicle outer side. At this time, the slider 32 is restricted from moving in the width direction by the fixed rail 92. For this reason, the slider 32 does not move in the width direction, but the slide plate 41 moves in the width direction together with the sliding door 2a.

  Further, with the movement of the rack gear 23, the third moving unit 50 moves in the same direction as the movement direction of the rack gear 23. At this time, like the first moving unit 30, the third moving unit 50 moves only in the longitudinal direction because the two sliders 52 are restricted from moving in the width direction and the vertical direction by the fixed rail 97. The sliding door 2 b connected via the third moving unit 50 and the fourth moving unit 60 also moves together with the third moving unit 50. At this time, the roller sets 84 and 85 are first guided in the grooves 81a and 82a of the guide rails 81 and 82 and moved in the longitudinal direction, similarly to the roller sets 74 and 75 described above. Then, immediately before the sliding door 2b reaches the closed position, the roller sets 84 and 85 are moved to the outside of the vehicle by the guidance of the grooves 81a and 82a, and the sliding door 2b is moved to the closed position by the sliding movement of the fourth moving unit 60. To reach. With the movement of the roller sets 84 and 85 to the outside of the vehicle, the door latches 10a and 10b of the sliding door 2b are inclined and moved to the outside of the vehicle as shown in FIG. Thereby, like the sliding door 2a, the sliding door 2b is arrange | positioned closer to the side wall 101 in the closed position than in the open position. For this reason, the peripheral part of the sliding door 2b is pressed against the elastic member (not shown) provided in the side wall 101 around the entrance / exit 102. The sliding doors 2a and 2b are arranged with their door ends facing each other.

  As the sliding door 2b moves to the outside of the vehicle, the fourth moving unit 60 also moves in the same direction. At this time, as shown in FIG. 10B, the slide plate 61 slides with respect to the protrusion 54 (the third moving unit 50) and moves to the outside of the vehicle. In other words, the sliding door 2b can also move to the vehicle outer side by the sliding movement of the fourth moving unit 60 as the roller sets 84 and 85 move to the vehicle outer side. At this time, the slider 52 is restricted from moving in the width direction by the fixed rail 97. Therefore, like the slider 32, the slider 52 does not move in the width direction, and the slide plate 61 moves in the width direction together with the sliding door 2b. Thus, the sliding doors 2a and 2b are closed from the opened state.

  Since the movement in the width direction is restricted by the first moving part 30 by the first restricting part 90 and the third moving part 50 by the second restricting part 95 in this way, the rod 21a of the air cylinder 21 is contracted. Even when the second moving unit 40 does not move smoothly with respect to the first moving unit 30 and the fourth moving unit 60 does not move smoothly with respect to the third moving unit 50 when closing the sliding doors 2 a and 2 b, the rod 21 a and the rack gear 23. This makes it difficult for a force to the outside of the vehicle to act on the front end of the door butt, and it is possible to suppress damage to the air cylinder 21 and deformation of the rod 21a and the rack gear 23.

  If the movement of the sliding doors 2a, 2b is hindered, such as when an object is caught between the sliding doors 2a, 2b when the sliding doors 2a, 2b are closed, the movement of the rod 21a and the rack gear 23 by driving the air cylinder 21 The force toward the door tip side acts on the upper end of the door bottom of the sliding doors 2a and 2b. At this time, since the movement of the sliding doors 2a and 2b is hindered, the door bottom side of the sliding doors 2a and 2b tends to float upward. Here, if the sliders 32 and 52 are not provided, or if a slider in which the movement in the vertical direction is not restricted is provided, the first and third moving parts are accompanied by the floating of the sliding doors 2a and 2b. Moves upward, and an upward force acts on the rod 21a and the front end of the rack gear 23 on the door bottom side. When an upward force acts on the rod 21a in this way, the air cylinder may be damaged, for example, the seal between the piston in the air cylinder 21 and the cylinder case may be damaged. Furthermore, the rod 21a and the rack gear 23 itself may be deformed. However, in the present embodiment, since the sliders 32 and 52 are also restricted from moving in the vertical direction by the fixed rails 92 and 97, the first moving unit 30 and the third moving unit 50 hardly move upward. For this reason, it is difficult for an upward force to act on the front end of the rod 21a and the rack gear 23, and damage to the air cylinder 21 and deformation of the rod 21a and the rack gear 23 can be suppressed.

  Next, the operation when the sliding doors 2a and 2b are moved from the closed state to the open state (from the closed position to the open position) will be described. Also when the sliding doors 2a and 2b are opened, the air cylinder 21 of the driving device 20 is driven, and the rod 21a shown in FIG. 1 is extended as shown in FIG. Then, the rack gears 22 and 23 move in the opposite direction to the closing time. The first moving unit 30 moves in the same direction as the moving direction of the rod 21 a, and the sliding door 2 a connected via the first moving unit 30 and the second moving unit 40 also moves together with the first moving unit 30. . At this time, since the two sliders 32 are restricted from moving in the width direction and the vertical direction by the fixed rail 92, the first moving unit 30 moves only in the longitudinal direction. At this time, the roller sets 74 and 75 are first guided by the grooves 71a and 72a to move toward the inside of the vehicle, and then move along the longitudinal direction so that the sliding door 2a reaches the open position. As the roller sets 74 and 75 move toward the inside of the vehicle, the door suspensions 10a and 10b of the sliding door 2a move toward the inside of the vehicle as shown in FIGS. 4 (b) and 5 (b). Thereby, the sliding door 2a is arrange | positioned away from the side wall 101 in the open position rather than the time in the closed position. Thereby, the sliding door 2a can be moved smoothly, without receiving the frictional resistance of an elastic member.

  As the sliding door 2a moves inward of the vehicle, the second moving unit 40 also moves in the same direction. At this time, as shown in FIG. 6B, the slide plate 41 slides relative to the protrusion 34 (first moving unit 30) and moves to the inside of the vehicle. In other words, the sliding door 2a can also move to the vehicle inner side as the second moving unit 40 slides along with the movement of the roller sets 74 and 75 to the vehicle inner side. Also at this time, the slider 32 is restricted from moving in the width direction by the fixed rail 92. For this reason, the slider 32 does not move in the width direction, but the slide plate 41 moves in the width direction together with the sliding door 2a.

  Further, the third moving unit 50 moves in the same direction as the movement direction of the rack gear 23, and the sliding door 2 b connected through the third moving unit 50 and the fourth moving unit 60 also moves together with the third moving unit 50. . At this time, since the two sliders 52 are restricted from moving in the width direction and the vertical direction by the fixed rail 97, the third moving unit 50 moves only in the longitudinal direction. At this time, as with the roller sets 74 and 75 described above, the roller sets 84 and 85 are first guided by the grooves 81a and 82a to move toward the inside of the vehicle, and then move along the longitudinal direction. The sliding door 2b reaches the open position. As the roller sets 84 and 85 move toward the inside of the vehicle, the door suspensions 10a and 10b of the sliding door 2b move toward the outside of the vehicle as shown in FIG. 9B. Thereby, the sliding door 2b is arrange | positioned away from the side wall 101 in the open position rather than the time in the closed position. Thereby, the sliding door 2b can be moved smoothly, without receiving the frictional resistance of an elastic member.

  As the sliding door 2b moves inward of the vehicle, the fourth moving unit 60 also moves in the same direction. At this time, as shown in FIG. 9B, the slide plate 61 slides with respect to the protrusion 54 (the third moving unit 50) and moves to the inside of the vehicle. In other words, the sliding door 2b can also move to the vehicle inner side as the fourth moving unit 60 slides along with the movement of the roller sets 84 and 85 to the vehicle inner side. Also at this time, the slider 52 is restricted from moving in the width direction by the fixed rail 97. Therefore, like the slider 32, the slider 52 does not move in the width direction, and the slide plate 61 moves in the width direction together with the sliding door 2b. Thus, the sliding doors 2a and 2b are opened from the closed state.

  As described above, the movement in the width direction is restricted by the first restricting portion 90 for the first moving portion 30 and the second restricting portion 95 for the third moving portion 50, so that the rod 21 a of the air cylinder 21 is extended and the sliding door is extended. Even when the second moving part 40 does not move smoothly with respect to the first moving part 30 and the fourth moving part 60 does not move smoothly with respect to the third moving part 50 when opening 2a and 2b, the rod 21a and the rack gear 23 It becomes difficult for the force toward the inside of the vehicle to act on the front end of the door bottom, and it is possible to suppress damage to the air cylinder 21 and deformation of the rod 21a and the rack gear 23.

  When the sliding doors 2a and 2b are opened, if some force acts on the sliding doors 2a and 2b and the movement of the sliding doors 2a and 2b is obstructed, the movement of the rod 21a and the rack gear 23 by driving the air cylinder 21 A force directed to the opposite side of the door tip side acts on the upper ends of the sliding doors 2a and 2b. At this time, since the movement of the sliding doors 2a and 2b is hindered, the door bottom side of the sliding doors 2a and 2b tends to sink downward. Even in this case, since the sliders 32 and 52 are restricted from moving in the vertical direction by the fixed rails 92 and 97, the first moving unit 30 and the third moving unit 50 hardly move downward. For this reason, it becomes difficult for the downward force to act on the door butt side tip of the rod 21a and the rack gear 23, and it is possible to suppress the breakage of the air cylinder 21 and the deformation of the rod 21a and the rack gear 23.

  As described above, according to the railcar door apparatus 1 of the present embodiment, the rod 21a of the air cylinder 21 is also regulated as a linear motion actuator by the fixed rail 92 in the width direction. The second moving part 40 and the sliding door 2a are connected via the part 30. Therefore, when the rod 21a of the air cylinder 21 of the drive device 20 is expanded and contracted to open and close the sliding door 2a, even if the sliding door 2a is moved in the width direction by the first guide portion 70, the force in the width direction is applied to the rod 21a. Becomes difficult to act. For this reason, it becomes possible to suppress that the air cylinder 21 is damaged. Furthermore, since it is not necessary to change the structure of the drive device 20 itself, an existing drive device can be employed, and an increase in manufacturing cost can be suppressed.

  Since the first restricting portion 90 includes the fixed rail 92 and the first moving portion 30 includes the slider 32, the movement restriction in the width direction and the vertical direction of the first moving portion 30 can be realized with a simple configuration.

  The rack gear 23 is connected to the fourth moving unit 60 and the sliding door 2b through the third moving unit 50 whose movement in the width direction is restricted by the fixed rail 97. For this reason, when opening / closing both the sliding doors 2a and 2b, even if the other sliding door 2b moves in the width direction by the second guide portion 80, the force in the width direction does not easily act on the rack gear 23. For this reason, it becomes possible to suppress damage to the drive device 20 such as deformation of the rack gear 23.

  Although the door device 1 in the above-described embodiment is a double-open door device, the door device may be a single-open as a modification. In this case, it is not necessary to provide the rack gears 22 and 23, the pinions 24 and 25, the third moving unit 50, the fourth moving unit 60, the second guide unit 80, the second regulating unit 95, the sliding door 2b, etc., and the configuration is simple. Become. In addition, even if it is a single door apparatus, if it has the above-mentioned 1st moving part 30 and the 1st control part 90, the effect similar to the above-mentioned embodiment can be acquired.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. For example, in the above-described embodiment and modification, the first restricting unit 90 restricts the movement of the first moving unit 30 in the vertical direction. The movement may not be restricted. Moreover, although the 1st moving part 30 and the 1st control part 90 have controlled the movement of the width direction and the perpendicular direction by the slider 32 and the fixed rail 92, it is not restricted to the structure of a slider and a fixed rail especially. The first moving unit may be realized in any configuration as long as movement in the width direction is restricted at least by the first restricting unit. Further, a direct acting actuator can be adopted even if it has a configuration other than the air cylinder 21. Further, in the drive device adopted in the double door device, any configuration can be used as long as it has a moving body that moves in the opposite direction to the rod by expanding and contracting the rod by the direct acting actuator. There may be. That is, the moving body is not particularly limited to the rack gear 23.

DESCRIPTION OF SYMBOLS 1 Door apparatus 2a, 2b Sliding door 3 Moving apparatus 10a, 10b Door hanging metal 20 Drive apparatus 21 Air cylinder (direct acting actuator)
21a Rod 23 Rack gear (moving body)
DESCRIPTION OF SYMBOLS 30 1st moving part 32 Slider 40 2nd moving part 50 3rd moving part 60 4th moving part 70 1st guide part 80 2nd guide part 90 1st control part 92 Fixed rail 95 2nd control part 100 Railway vehicle 101 Side wall 102 Entrance 103 Upper rail

Claims (5)

A door suspension metal that engages with the upper rail provided along the upper edge of the entrance provided in the side wall extending in the longitudinal direction of the railway vehicle, and is supported so as to be movable along the upper rail. Sliding doors,
A moving device that moves the sliding door between a closed position that closes the gate and an open position that opens the gate;
The mobile device is
A drive device having a direct acting actuator capable of expanding and contracting the rod along the longitudinal direction;
A first moving part connected to the rod and moving in the longitudinal direction as the rod expands and contracts;
A second moving part that connects the first moving part and the sliding door, and moves in the longitudinal direction together with the sliding door as the first moving part moves;
When the sliding door is moved toward the closed position, the first guide portion guides the sliding door in the width direction of the railway vehicle perpendicular to the longitudinal direction immediately before the sliding door reaches the closed position. And
The second moving unit moves in the width direction with respect to the first moving unit together with the sliding door with guidance in the width direction by the first guide unit,
Furthermore, the said moving apparatus has a 1st control part which controls the movement to the said width direction of the said 1st moving part, The railcar door apparatus characterized by the above-mentioned.   The railway vehicle door device according to claim 1, wherein the first restricting portion restricts movement of the first moving portion in a vertical direction. The first restricting portion has a fixed rail that is fixed to the upper rail and extends in the longitudinal direction,
The railway vehicle door device according to claim 2, wherein the first moving unit includes a slider supported to be movable in the longitudinal direction with respect to the fixed rail. There are two sliding doors,
The moving device is configured so that the door tips are in contact with each other in the closed position, and the door positions are separated from each other in the open position. The railway vehicle door device according to any one of claims 1 to 3, wherein the two sliding doors are moved in opposite directions to each other. The drive device further includes a moving body that moves in a direction opposite to the rod as the rod expands and contracts,
The second moving unit connects the first moving unit and one of the sliding doors,
The first guide portion guides the one sliding door,
The mobile device is
A third moving unit connected to the moving body and moving in the longitudinal direction as the moving body moves;
A fourth moving part that connects the third moving part and the other sliding door, and moves in the longitudinal direction together with the other sliding door as the third moving part moves;
When the other sliding door is moved toward the closed position, immediately before the other sliding door reaches the closed position, the other sliding door is in the width direction and in the same direction as the one sliding door. And a second guiding part for guiding,
The fourth moving part moves in the width direction with respect to the third moving part together with the other sliding door in accordance with the guide in the width direction by the second guide part,
Furthermore, the said moving apparatus has a 2nd control part which controls the movement to the said width direction of the said 3rd moving part, The railcar door apparatus of Claim 4 characterized by the above-mentioned.