JP2019132010A - Plug door device - Google Patents

Abstract

To provide a plug door device that can open and close a door smoothly.SOLUTION: A plug door device 1 includes an upper swing arm 31 and a lower swing arm 32, an upper pinion 33 attached to the upper swing arm 31, an upper rack 35 engaging with the upper pinion 33, a lower pinion 34 attached to the lower swing arm 32, a lower rack 36 engaging with the lower pinion 34, an arm connecting shaft 40 connecting the upper swing arm 31 and the lower swing arm 32, and a pinion connecting shaft 50 connecting the upper pinion 33 and the lower pinion 34. The arm connecting shaft 40 has a first adjustable joint 44 and a second adjustable joint 45, and the pinion connecting shaft 50 has a third adjustable joint 54 and a fourth adjustable joint 55.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a plug door device.

  For example, a railroad vehicle is provided with a plug door device that opens and closes in the vehicle front-rear direction while moving a door provided at the entrance of the vehicle body in the vehicle width direction. As this type of plug door device, for example, as in the plug door device of Patent Document 1, a stabilizer that suppresses relative displacement of the upper and lower portions of the door in the vehicle width direction and the vehicle front-rear direction when the door is opened and closed is provided. What is known.

With reference to FIG. 14 and FIG. 15, an example of a plug door apparatus provided with a stabilizer is demonstrated.
As shown in FIG. 14, the plug door device 300 includes a feed screw type drive unit 310 serving as a drive source for opening and closing the one-sided door 400 and a stabilizer provided so as to connect an upper part and a lower part of the door 400. 320 and a rack and pinion mechanism 330 that guides the movement of the door 400 in the vehicle longitudinal direction.

  The stabilizer 320 is arranged at the upper part of the door 400 and is arranged at the lower part of the door 400 and rotated at the lower part of the door 400 in accordance with the movement of the door 400 in the vehicle width direction. A rotating lower swing arm 322 and a connecting shaft 323 connecting the upper swing arm 321 and the lower swing arm 322 are provided. The upper part of the connecting shaft 323 is inserted into the tip of the upper swing arm 321, and the lower part of the connecting shaft 323 is inserted into the tip of the lower swing arm 322. Thus, since the tip of the upper swing arm 321 and the tip of the lower swing arm 322 are connected by the connecting shaft 323, the upper swing arm 321 and the lower swing arm are moved when the door 400 moves in the vehicle width direction. 322 rotates synchronously. Therefore, the upper part and the lower part of the door 400 move in synchronization with the vehicle width direction.

  The rack and pinion mechanism 330 includes an upper rack 331 provided at the top of the door 400, an upper pinion 332 provided at the tip of the upper swing arm 321, a lower rack 333 provided at the lower part of the door 400, And a lower pinion 334 provided at the tip of the side swing arm 322. The upper rack 331 and the lower rack 333 have the same configuration, and the upper pinion 332 and the lower pinion 334 have the same configuration. Further, an upper pinion 332 is attached to an upper end portion of the connecting shaft 323 protruding upward from the upper swing arm 321, and a lower pinion is attached to the lower end portion of the connecting shaft 323 protruding downward from the lower swing arm 322. 334 is attached. That is, the connecting shaft 323 connects the upper pinion 332 and the lower pinion 334. According to such a configuration, when the door 400 moves in the vehicle front-rear direction, the rotation of the upper pinion 332 is transmitted to the lower pinion 334 via the connecting shaft 323, so that the upper pinion 332 and the lower pinion 334 are Rotate synchronously. Since the upper rack 331 and the upper pinion 332 and the lower rack 333 and the lower pinion 334 are similarly engaged with each other, the upper and lower portions of the door 400 move in synchronization with the vehicle longitudinal direction.

  As shown in FIG. 15, the door 400 has a structure inclined with respect to the vertical direction, and a lower part of the door 400 is curved. Thereby, the position in the vehicle width direction of the upper swing arm 321 of the stabilizer 320 and the position in the vehicle width direction of the lower swing arm 322 are different from each other. For this reason, each of the rotation shaft of the upper swing arm 321 and the rotation shaft of the lower swing arm 322 is inclined so as to become the outer side in the vehicle width direction as it goes downward with respect to the vertical direction.

JP-A-6-262945

  As shown in FIG. 15, when the door 400 moves outward in the vehicle width direction, the upper swing arm 321 and the lower swing arm 322 need to lift the door 400. For this reason, the dead weight of the door 400 becomes resistance to rotation of the upper swing arm 321 and the lower swing arm 322, and it may be difficult to open the door 400 smoothly.

  Such a problem is not limited to a single-open door, and may occur in a double-open door as well. In addition, when each of the rotation shaft of the upper swing arm and the rotation shaft of the lower swing arm is inclined to the inner side in the vehicle width direction as it goes downward with respect to the vertical direction, the door is in the fully closed position. When each swing arm is rotated, the weight of the door becomes resistance of each swing arm, and it may be difficult to close the door smoothly.

  An object of this invention is to provide the plug door apparatus which can open and close a door smoothly.

  [1] A plug door device according to an embodiment of the present invention includes a first swing arm and a second swing arm that are arranged at intervals in the height direction of the door, and rotation of the first swing arm in the first swing arm. A first pinion attached to a part different from the shaft, a first rack attached to the door and meshing with the first pinion, and attached to a part different from the rotation axis of the second swing arm in the second swing arm. A second pinion attached to the door and meshed with the second pinion, and a first arm shaft connected to the first swing arm so as to be coaxial with a rotation axis of the first swing arm. A second arm shaft coupled to the second swing arm so as to be coaxial with the rotation axis of the second swing arm; A third arm shaft that connects the first arm shaft and the second arm shaft, and rotates together with the first swing arm and the second swing arm to rotate the first swing arm and the second arm shaft. An arm coupling shaft that synchronizes the rotation of the swing arm, a first pinion shaft coupled to the first pinion so as to be coaxial with the rotational axis of the first pinion, and coaxial with the rotational axis of the second pinion A second pinion shaft connected to the second pinion, and a third pinion shaft connecting the first pinion shaft and the second pinion shaft, the first pinion and the second pinion, A pinion connecting shaft that rotates integrally to synchronize the rotation of the first pinion and the rotation of the second pinion; and the arm connecting shaft includes the first arm shaft and the third arm shaft. And a second universal joint for connecting the second arm shaft and the third arm shaft, and the pinion connecting shaft includes the first pinion shaft and the third pinion shaft. And a fourth universal joint for connecting the second pinion shaft and the third pinion shaft.

According to this configuration, the first arm shaft and the second arm shaft are inclined with respect to the first arm shaft and the second arm shaft by the first universal joint and the second universal joint. Can be adjusted vertically. Thus, for example, even when the position of the first swing arm in the vehicle width direction and the position of the second swing arm in the vehicle width direction are different from each other due to the door being formed in a curved shape, for example, By tilting with respect to the direction, it is possible to prevent the rotation axes of the first swing arm and the second swing arm from tilting with respect to the vertical direction. For this reason, since it is suppressed that the dead weight of a door becomes resistance of rotation of a 1st swing arm and a 2nd swing arm, the movement to the vehicle width direction of a door can be performed smoothly.
On the other hand, when the axial direction of the first pinion shaft is inclined with respect to the vertical direction, the vertical direction of the first pinion relative to the first rack due to processing errors and assembly errors of the first rack and the first pinion. If the position is different from the preset position, the position where the teeth of the first pinion and the teeth of the first rack mesh with each other in the direction in which the first pinion and the first rack face each other is not appropriate. As a result, the meshing force between the first rack and the first pinion becomes excessively large or small, and the first pinion does not rotate smoothly with respect to the first rack. Similarly, when the axial direction of the second pinion shaft is inclined with respect to the vertical direction, the second pinion does not rotate smoothly with respect to the second rack.
In this regard, according to the present plug door device, the first pinion shaft and the second pinion are made by inclining the third pinion shaft with respect to the first pinion shaft and the second pinion shaft by the third universal joint and the fourth universal joint. The axial direction of the shaft can be adjusted to the vertical direction. As a result, even if the vertical position of the first pinion relative to the first rack differs from the preset position due to processing errors and assembly errors of the first rack and the first pinion, the first pinion and the first pinion Since the position where the teeth of the first pinion and the teeth of the first rack are engaged is not changed in the direction in which the one rack faces, the first pinion and the first rack are engaged with each other with an appropriate force. Similarly, for the second rack and the second pinion, the second pinion and the second rack mesh with each other with an appropriate force. For this reason, for example, even if the position of the first pinion in the vehicle width direction and the position of the second pinion in the vehicle width direction are different from each other due to the door being formed in a curved shape, the first pinion is attached to the first rack. The second pinion rotates smoothly with respect to the second rack. Therefore, the door can be opened and closed smoothly.

  [2] According to one aspect dependent on the plug door device, an arm adjustment mechanism capable of adjusting a distance between the first swing arm and the second swing arm, the first pinion and the second pinion, And a pinion adjustment mechanism capable of adjusting the distance between the two.

According to this configuration, the position of the first swing arm and the position of the second swing arm that match the position of the door with respect to the vehicle body are adjusted by adjusting the distance between the first swing arm and the second swing arm by the arm adjustment mechanism. Can be adjusted to.
On the other hand, when the position of the door with respect to the vehicle body is changed, the positions of the first rack and the second rack attached to the door with respect to the vehicle body are changed. Therefore, by changing the distance between the first pinion and the second pinion by the pinion adjustment mechanism, the first pinion can be arranged at a position where the first pinion meshes with the first rack, and the second rack has the second pinion. The second pinion can be arranged at a position where the two pinions mesh.

  [3] According to one aspect dependent on the plug door device, the arm adjusting mechanism includes a first male screw portion provided on the first arm shaft, and a first nut screwed into the first male screw portion. The first nut can change the position of the first swing arm by moving in the axial direction of the first male screw portion.

  According to this configuration, the distance between the first swing arm and the second swing arm is changed according to the screwing amount of the first nut. For this reason, the distance between the first swing arm and the second swing arm can be adjusted steplessly.

  [4] According to one aspect dependent on the plug door device, the pinion adjusting mechanism includes a second male screw portion provided on the second pinion shaft, and a second nut screwed into the second male screw portion. The second nut can change the position of the second pinion by moving in the axial direction of the second male screw portion.

  According to this configuration, the distance between the first pinion and the second pinion is changed according to the screwing amount of the second nut. For this reason, the distance between the first pinion and the second pinion can be adjusted steplessly.

  [5] According to one aspect dependent on the plug door device, at least one of the first arm shaft and the first pinion shaft includes a first connection shaft and a second connection shaft formed separately, and the first It is connected to the first connecting shaft so that it cannot rotate with respect to the connecting shaft and can move with respect to the first connecting shaft, and cannot rotate with respect to the second connecting shaft and cannot move with respect to the second connecting shaft. And a connecting member connected to the second connecting shaft.

  According to this configuration, the relative rotation of the first connecting shaft and the second connecting shaft can be suppressed, and the axial length of the first arm shaft (first pinion shaft) can be easily changed.

  [6] According to an embodiment subordinate to the plug door device, the apparatus further includes an attachment member for attaching the first arm shaft to the vehicle body, and the attachment member is provided on the vehicle body and extends along the vertical direction. It can be attached to a fixing member having one longitudinal groove, and the attachment member is provided with a second longitudinal groove that can mesh with the first longitudinal groove.

  According to this structure, the inclination of the attachment member with respect to the fixing member is suppressed by engaging the second longitudinal groove of the attachment member with the first longitudinal groove of the fixation member. For this reason, it is suppressed that the arm connection shaft inserted in the attachment member inclines with respect to a fixed member. Therefore, it is possible to further suppress the rotation axes of the first swing arm and the second swing arm from being inclined with respect to the vertical direction.

  [7] According to one aspect dependent on the plug door device, the first pinion and the first rack are disposed at an upper portion of the door, and the second pinion and the second rack are disposed at a lower portion of the door. Be placed.

  For example, when there is a rack and pinion mechanism at the center in the height direction of the door, the aesthetics of the door is degraded. In that respect, according to the configuration of [7] above, since the rack and pinion mechanism is not arranged at the center of the door, it is possible to suppress a decrease in aesthetic appearance.

  According to the plug door device of the present invention, the door can be opened and closed smoothly.

(A) The front view of the plug door apparatus of one Embodiment, (b) The enlarged view of a door hanger. (A) The top view of the rail mechanism of the plug door apparatus of FIG. 1 when the door is in the fully closed position, (b) The top view of the rail mechanism when the door is in the fully open position. (A) Side view of plug door apparatus when position of door is fully closed position, (b) Side view of plug door apparatus when position of door is fully open position. (A) Top view of upper swing arm and its periphery, (b) Front view of upper swing arm and its periphery, (c) Side view of support arm, (d) Relationship between upper pinion and its periphery and door Side view. Sectional drawing of the 5-5 line | wire of Fig.4 (a). The disassembled perspective view which shows the attachment structure of an attachment member and an upper side fixing member. The front view which shows a part of arm connection shaft and pinion connection shaft. (A) Top view of lower swing arm and its periphery, (b) Front view of lower swing arm and its periphery, (c) Side view showing relationship between lower pinion and its periphery and door. Sectional drawing of the 9-9 line | wire of Fig.8 (a). (A) Plan view showing the relationship between the upper swing arm and the door, (b) Plan view showing the relationship between the lower swing arm and the door, (c) Plan view showing the relationship between the rolling element of the door and the rail of the vehicle body. . (A) The top view which shows the relationship between an upper drawing-in apparatus and a door, (b) The top view which shows the relationship between a lower drawing-in apparatus and a door. (A) Side view of the lock cylinder and the lower swing arm when the lock cylinder is in the locked state, (b) Side view of the lock cylinder and the lower swing arm when the lock cylinder is in the unlocked state. The flowchart which shows the procedure of the attachment method of a plug door apparatus. The front view of the conventional plug door apparatus. The side view of the plug door apparatus of FIG.

Hereinafter, an embodiment of a plug door device will be described with reference to the drawings.
As shown in FIG. 1, the plug door device 1 opens and closes double-drawing doors 220 </ b> R and 220 </ b> L provided on a vehicle body 210 of a railway vehicle 200. Rolling elements 230 are provided at two positions spaced apart in the front-rear direction of the vehicle 200 (hereinafter, “front-rear direction ZA”) at the lower end portions of the doors 220R, 220L. The number of rolling elements 230 can be set arbitrarily. The rolling element 230 is slidably accommodated in a rail 231 provided on the vehicle body 210. As shown by the two-dot chain line in FIG. 3, the door 220 </ b> R has a shape in which the lower portion of the door 220 </ b> R is curved toward the inside of the vehicle 200 in the vehicle width direction of the vehicle 200 (hereinafter, “vehicle width direction ZB”). . The configuration and shape of the door 220L are the same as the configuration and shape of the door 220R. The plug door device 1 can also be applied to a one-way door.

  As shown in FIG. 1, the plug door device 1 includes a drive mechanism 10 serving as a drive source for opening and closing the doors 220R and 220L. The drive mechanism 10 is provided on the upper part of the vehicle body 210. The drive mechanism 10 includes a pair of rods 11R, 11L extending in the front-rear direction ZA, a drive cylinder 12 that moves the rods 11R, 11L in the front-rear direction ZA by air pressure, and doors 220R, 220L in the vehicle width direction ZB and the front-rear direction ZA. A rail mechanism 16 for guiding the movement and a draw mechanism 20 for moving the rods 11R and 11L in opposite directions are provided. The drive mechanism 10 may be configured to move the pair of rods 11R and 11L by a feed screw mechanism driven by an electric motor instead of the drive cylinder 12.

  The pair of rods 11R and 11L are arranged at an interval in the vehicle width direction ZB. A door hanger 15R is connected to the rod 11R via a connecting member 13R and a slide member 14R. A door hanger 15L is connected to the rod 11L via a connecting member 13L and a slide member 14L.

  The connecting member 13R connects the rod 11R and the slide member 14R. The slide member 14R extends in the front-rear direction ZA. As shown in FIG. 1B, the door hanger 15R is attached to the slide member 14R so as to be rotatable around a rotation shaft 15A provided at a position different from the connecting member 13R (see FIG. 1A) in the front-rear direction ZA. It has been. The door hanger 15R is attached to the arm 15B supported by the rotary shaft 15A, the mounting portion 15C attached to the door 220R and movable horizontally in the vehicle width direction ZB, and rotatably connected to the arm 15B. And a connecting portion 15D that is swingably connected to the portion 15C. The attachment portion 15C is attached to the door 220R by, for example, a bolt (not shown). A long hole 15E into which a bolt is inserted is formed in the attachment portion 15C. In the long hole 15E, the height direction of the vehicle 200 (hereinafter, “height direction ZC”) is the longitudinal direction. In the present embodiment, the height direction ZC coincides with the vertical direction. A rolling element 15F that is rotatable around a rotation axis along the height direction ZC is attached to the upper surface of the attachment portion 15C. In addition, each structure and connection structure of 13 L of connecting members, the slide member 14L, and the door hanger 15L are the same as that of the connecting member 13R, the slide member 14R, and the door hanger 15R.

  As shown in FIG. 1A, the rail mechanism 16 includes a support member 17 attached to the vehicle body 210. The length of the support member 17 in the front-rear direction ZA is longer than the width of the entrance / exit 211 in the front-rear direction ZA. Linear first rails 18R, 18L extending in the front-rear direction ZA are attached to the front surface of the support member 17, and second rails 19R, 19L are attached to the lower surface of the support member 17.

  The first rails 18 </ b> R and 18 </ b> L are open on the front side of the support member 17. A slide member 14R is attached to the first rail 18R so as to be movable in the front-rear direction ZA, and a slide member 14L is attached to the first rail 18L so as to be movable in the front-rear direction ZA.

  The second rails 19R and 19L are open downward (see FIG. 3). As shown in FIG. 2, the second rails 19 </ b> R and 19 </ b> L include an inclined portion 19 </ b> A that inclines in a curved shape outward in the vehicle width direction ZB from the center of the entrance / exit 211 toward the end of the entrance / exit 211. And a straight line portion 19B extending from the end of the inclined portion 19A in the front-rear direction ZA toward the front-rear direction ZA. The rolling element 15F of the door hanger 15R is slidably accommodated in the second rail 19R, and the rolling element 15F of the door hanger 15L slides with respect to the second rail 19L. It is housed movably.

  The draw mechanism 20 is disposed between the pair of rods 11R and 11L in the vehicle width direction ZB. An example of the drawing mechanism 20 has pinion teeth (not shown) that mesh with rack teeth (not shown) provided on the pair of rods 11R and 11L. As the rod 11R is moved by the drive cylinder 12 in the drawing mechanism 20, the pinion teeth that mesh with the rack teeth of the rod 11R rotate, and the rod 11L that meshes with the pinion teeth moves in the opposite direction to the rod 11R.

  As shown in FIG. 1A, the plug door device 1 includes stabilizers 30R and 30L that suppress relative displacement of the upper and lower portions of the doors 220R and 220L when the doors 220R and 220L are opened and closed. Yes. The stabilizers 30R and 30L are provided on both sides of the entrance / exit 211 in the front-rear direction ZA.

  The stabilizer 30R includes an upper swing arm 31 that is an example of a first swing arm disposed above the door 220R, a lower swing arm 32 that is an example of a second swing arm disposed below the door 220R, and an upper side. An arm connecting shaft 40 that connects the swing arm 31 and the lower swing arm 32 is provided. The stabilizer 30 </ b> R includes an upper pinion 33 that is an example of a first pinion provided on the upper swing arm 31, a lower pinion 34 that is an example of a second pinion provided on the lower swing arm 32, and an upper pinion 33. And a lower pinion 34 are provided with a pinion connecting shaft 50.

  The arm connecting shaft 40 has a first arm shaft 41 connected to the upper swing arm 31 so as to be coaxial with the rotational axis of the upper swing arm 31 and a lower swing so as to be coaxial with the rotational axis of the lower swing arm 32. A second arm shaft 42 connected to the arm 32 and a third arm shaft 43 connecting the first arm shaft 41 and the second arm shaft 42 are provided. Further, the arm connecting shaft 40 rotates the first universal joint 44 that connects the first arm shaft 41 and the third arm shaft 43 so as to rotate together, and the second arm shaft 42 and the third arm shaft 43 that rotate together. And a second universal joint 45 that can be connected. An example of the first universal joint 44 and the second universal joint 45 is a cardan joint. The first universal joint 44 and the second universal joint 45 may be a Rzeppa joint or a constant velocity joint instead of the cardan joint.

  As shown in FIG. 3, the first arm shaft 41 includes a first connection shaft 41A connected to the first universal joint 44, and a second connection shaft 41B connected to the upper end of the first connection shaft 41A. Prepare. The first connecting shaft 41A and the second connecting shaft 41B can rotate together. Thus, since the first arm shaft 41, the second arm shaft 42, and the third arm shaft 43 can rotate integrally, the arm connecting shaft 40 can rotate the upper swing arm 31 and the lower swing arm. The rotation of 32 is synchronized.

  The upper swing arm 31 and the lower swing arm 32 are attached to the door 220R along the shape of the door 220R. For this reason, the lower swing arm 32 is disposed inside the upper swing arm 31 in the vehicle width direction ZB. The first arm shaft 41 and the second arm shaft 42 extend along the height direction ZC (vertical direction). The third arm shaft 43 can be tilted with respect to the first arm shaft 41 by the first universal joint 44, and can be tilted with respect to the second arm shaft 42 by the second universal joint 45. Inclined outward in the width direction ZB.

  As shown in FIG. 3B, the upper pinion 33 is attached to a portion of the upper swing arm 31 that is different from the rotation axis of the upper swing arm 31, for example, the tip of the upper swing arm 31. As shown in FIG. 1A, an upper rack 35 extending in the front-rear direction ZA is attached to the upper portion of the door 220R facing the upper pinion 33 in the vehicle width direction ZB. The upper pinion 33 and the upper rack 35 are meshed with each other.

  As shown in FIG. 3B, the lower pinion 34 is attached to a portion of the lower swing arm 32 that is different from the rotation axis of the lower swing arm 32, for example, the tip of the lower swing arm 32. . As shown in FIG. 1A, a lower rack 36 extending in the front-rear direction ZA is attached to the lower portion of the door 220R facing the lower pinion 34 in the vehicle width direction ZB. The lower pinion 34 and the lower rack 36 are meshed with each other. The upper pinion 33 and the lower pinion 34 have the same number of teeth and the same shape, and the upper rack 35 and the lower rack 36 have the same number of teeth and the same shape.

  The pinion connecting shaft 50 is connected to the lower pinion 34 so as to be coaxial with the first pinion shaft 51 connected to the upper pinion 33 so as to be coaxial with the rotational axis of the upper pinion 33 and the rotational axis of the lower pinion 34. And a third pinion shaft 53 that connects the first pinion shaft 51 and the second pinion shaft 52 to each other. Further, the pinion connecting shaft 50 integrally rotates the third universal joint 54 that rotatably connects the first pinion shaft 51 and the third pinion shaft 53, and the second pinion shaft 52 and the third pinion shaft 53. And a fourth universal joint 55 that can be connected. An example of the third universal joint 54 and the fourth universal joint 55 is a cardan joint. The third universal joint 54 and the fourth universal joint 55 may be a Rzeppa joint or a constant velocity joint instead of the cardan joint.

  As shown in FIG. 3B, the first pinion shaft 51 includes a first connection shaft 51A connected to the third universal joint 54, and a second connection connected to the upper end portion of the first connection shaft 51A. It has a shaft 51B. The first connecting shaft 51A and the second connecting shaft 51B can rotate together. Thus, since the first pinion shaft 51, the second pinion shaft 52, and the third pinion shaft 53 can rotate together, the pinion connecting shaft 50 can rotate the upper pinion 33 and the lower pinion 34. Synchronize with rotation.

  As shown in FIG. 1B and FIG. 3, the plug door device 1 includes retractors 21R, 21L, 22R, and 22L that pull the pinion connecting shaft 50 of the stabilizers 30R and 30L inside the vehicle width direction ZB. The plug door device 1 includes lock cylinders 23R and 23L (the lock cylinder 23L is not shown in FIG. 3; refer to FIG. 12) that locks rotation about the rotation axis of the lower swing arm 32 of the stabilizers 30R and 30L. The retracting devices 21R and 21L are attached to the vehicle body 210 above the upper pinion 33 and the upper rack 35. The retracting devices 22R and 22L are attached to the vehicle body 210 below the lower pinion 34 and the lower rack 36. The drawing-in devices 21R and 21L have an arm 21A for drawing the upper end of the pinion connecting shaft 50 of the stabilizers 30R and 30L into the vehicle width direction ZB. The drawing-in devices 22R and 22L have an arm 22A for drawing the lower end portion of the pinion connecting shaft 50 of the stabilizers 30R and 30L into the vehicle width direction ZB.

A detailed configuration of the stabilizer 30R will be described with reference to FIG. 1 and FIGS. The configuration of the stabilizer 30L is the same as the configuration of the stabilizer 30R.
4 and 5 show the configuration of the upper portion of the stabilizer 30R, particularly the configuration of the upper swing arm 31 and its periphery.

  As shown in FIG. 4B, the upper swing arm 31 includes an arm support portion 31 </ b> A that supports the first arm shaft 41 of the arm connecting shaft 40 in a non-rotatable manner and a first pinion shaft 51 of the pinion connecting shaft 50. A pinion support portion 31B that is rotatably supported, and a connecting portion 31C that connects the arm support portion 31A and the pinion support portion 31B are provided. The arm support portion 31A is formed in a cylindrical shape having an insertion hole 31D (see FIG. 5) into which the first arm shaft 41 can be inserted, and the pinion support portion 31B is inserted into an insertion hole 31E (FIG. 5) in which the first pinion shaft 51 can be inserted. It is formed in a cylindrical shape having a reference). The dimension of the pinion support part 31B in the height direction ZC is larger than the dimension of the arm support part 31A in the height direction ZC.

  The second connecting shaft 51B of the first pinion shaft 51 protrudes on both sides in the height direction ZC with respect to the pinion support portion 31B. The upper pinion 33 is non-rotatably attached to a portion of the second connecting shaft 51B above the pinion support portion 31B. A support arm 60 is attached to a portion of the second connecting shaft 51B between the pinion support portion 31B and the upper pinion 33 in the height direction ZC.

  As shown in FIG. 4A, the support arm 60 extends in a direction orthogonal to the second connecting shaft 51B. A pair of first rolling elements 61 disposed at intervals in the front-rear direction ZA and a second rolling element 62 disposed between the pair of first rolling elements 61 are attached to the distal end portion of the support arm 60. It has been. The pair of first rolling elements 61 can rotate around the rotation axis in the direction along the height direction ZC, and the second rolling elements 62 can rotate around the rotation axis in the direction orthogonal to the height direction ZC. . As shown in FIG. 4C, the upper end portion of the second rolling element 62 is located above the upper end portions of the pair of first rolling elements 61. As shown in FIG. 4D, the pair of first rolling elements 61 and second rolling elements 62 are provided on an upper rail 221 provided on the back side (outside in the vehicle width direction ZB) of the upper rack 35 of the door 220R. Contained. The upper rail 221 extends in the front-rear direction ZA and opens downward. The pair of first rolling elements 61 contacts one of both side walls of the upper rail 221 in the vehicle width direction ZB, and the second rolling element 62 contacts the upper wall of the upper rail 221 and supports the door 220R. ing.

  As shown in FIG. 5, the second connecting shaft 51 </ b> B of the first pinion shaft 51 is rotatably supported with respect to the upper swing arm 31 by the first rolling bearing 63 and the second rolling bearing 64. The first rolling bearing 63 is a bearing in which a thrust bearing 63A and a radial bearing 63B are combined together. The thrust bearing 63A is disposed on the upper surface of the pinion support portion 31B, and the radial bearing 63B is disposed on the upper end portion of the insertion hole 32E of the pinion support portion 31B. The 2nd rolling bearing 64 is attached to the lower end part of insertion hole 32E of pinion support part 31B. The support arm 60 is rotatably supported with respect to the first pinion shaft 51 by a third rolling bearing 65. The support arm 60 is supported in the height direction ZC by a thrust bearing 63A of the first rolling bearing 63. The first rolling bearing 63 may be formed with a thrust bearing 63A and a radial bearing 63B individually. Each of the thrust bearing 63A, the radial bearing 63B, the second rolling bearing 64, and the third rolling bearing 65 may be a ball bearing or a roller bearing.

  As shown in FIG. 4B, the lower part of the second connecting shaft 41B of the first arm shaft 41 than the arm support portion 31A of the upper swing arm 31 is an attachment member for attaching the stabilizer 30R to the vehicle body 210. 66 is inserted. In the second connecting shaft 41B, the portion above the portion where the mounting member 66 is inserted has a mounting shaft 41C to which the arm support portion 31A is mounted, and the diameter is smaller than that of the mounting shaft 41C below the mounting shaft 41C. A first male screw portion 41D is provided. The upper swing arm 31 is coupled to the first arm shaft 41 when the arm support portion 31A is sandwiched in the height direction ZC by the nut 69 attached to the attachment shaft 41C and the upper end surface of the first male screw portion 41D. Yes.

  The attachment member 66 includes an insertion portion 66A having an insertion hole 66C (see FIG. 5) into which the first connecting shaft 41A is inserted, and a plate-like attachment portion 66B extending outward from the insertion portion 66A. The attachment member 66 is fixed to the upper fixing member 212R fixed above the vehicle body 210 by, for example, a bolt B through a pair of long holes 66D formed in the attachment portion 66B and having the vehicle width direction ZB as the longitudinal direction. Yes. Thereby, the position of the attachment member 66 with respect to the upper side fixing member 212R in the vehicle width direction ZB can be adjusted.

  As shown in FIG. 5, the second connecting shaft 41 </ b> B of the first arm shaft 41 is rotatably supported with respect to the mounting member 66 by the fourth rolling bearing 67 and the fifth rolling bearing 68. The fourth rolling bearing 67 is a bearing in which a thrust bearing 67A and a radial bearing 67B are combined together. The thrust bearing 67A is disposed on the upper surface of the insertion portion 66A, and the radial bearing 67B is disposed on the upper end portion of the insertion hole 66C of the insertion portion 66A. The fifth rolling bearing 68 is attached to the lower end portion of the insertion hole 66C of the insertion portion 66A. In addition, as for the 4th rolling bearing 67, 67A of thrust bearings and the radial bearing 67B may be formed separately. The thrust bearing 67A, the radial bearing 67B, and the fifth rolling bearing 68 may be ball bearings or roller bearings.

  As shown in FIG. 6, the upper fixing member 212R is formed with a pair of holes 212A into which the bolts B are inserted. A plurality of first vertical grooves 212B extending in the vertical direction are formed in a portion of the upper fixing member 212R that faces the mounting portion 66B.

  A plurality of second vertical grooves 66E extending along the vertical direction are formed in a portion of the mounting portion 66B that faces the upper fixing member 212R. The second vertical groove 66E is engaged with the first vertical groove 212B.

  As shown in FIGS. 4B and 7, the stabilizer 30 </ b> R includes an arm adjustment mechanism 70 that can adjust the distance between the upper swing arm 31 and the lower swing arm 32 (see FIG. 3). As shown in FIG. 4B, the arm adjusting mechanism 70 includes a first male screw portion 41D provided on the second connecting shaft 41B of the first arm shaft 41, and a first nut screwed into the first male screw portion 41D. 71, and a lock nut 72 that restricts the rotation of the first nut 71 relative to the first male screw portion 41D.

  As shown in FIG. 7, the arm adjustment mechanism 70 includes a length adjustment unit 73 that adjusts the length of the first arm shaft 41 in the axial direction. The length adjusting unit 73 includes a cylindrical connecting member 46 that connects the first connecting shaft 41A and the second connecting shaft 41B of the first arm shaft 41. The second connecting shaft 41B is connected to the upper end of the connecting member 46 so as not to rotate and to move in the axial direction of the second connecting shaft 41B. The first connecting shaft 41A is connected to the lower portion of the connecting member 46 so as not to rotate and to be movable in the axial direction of the first connecting shaft 41A. Specifically, a spline 41E is formed on the first connecting shaft 41A, and a spline (not shown) that meshes with the spline 41E is formed on the inner peripheral portion of the connecting member 46. The first connection shaft 51 </ b> A and the third pinion shaft 53 of the first pinion shaft 51 have the same configuration as the first connection shaft 41 </ b> A and the third arm shaft 43 of the first arm shaft 41. For this reason, in FIG. 7, the code | symbol of the pinion connecting shaft 50 is attached | subjected with the parenthesis writing.

8 and 9 show the configuration of the lower portion of the stabilizer 30R, particularly the configuration of the lower swing arm 32 and its periphery.
As shown in FIG. 8B, the lower swing arm 32 includes an arm support portion 32 </ b> A that supports the second arm shaft 42 of the arm connecting shaft 40 so as not to rotate, and a second pinion shaft 52 of the pinion connecting shaft 50. A pinion support portion 32B that rotatably supports the arm support portion 32A, and a connection portion 32C that connects the pinion support portion 32B. The arm support portion 32A is formed in a cylindrical shape having an insertion hole 32D (see FIG. 9) into which the third arm shaft 43 can be inserted, and the pinion support portion 32B is an insertion hole 32E (see FIG. 9) into which the third pinion shaft 53 can be inserted. It is formed in a cylindrical shape having a reference). The dimension of the pinion support part 32B in the height direction ZC is larger than the dimension of the arm support part 32A in the height direction ZC. As shown in FIG. 8A, the pinion support portion 32B is provided with an extension portion 32F extending in the front-rear direction ZA. A hole 32G into which the lock pin 23A (see FIG. 12) of the lock cylinder 23R can be inserted is formed in the extension portion 32F.

  As shown in FIG. 8B, the portion of the second arm shaft 42 of the arm connecting shaft 40 that is below the arm support portion 32 </ b> A is inserted into an attachment member 66 for attaching the stabilizer 30 </ b> R to the vehicle body 210. . The attachment member 66 is fixed by, for example, a bolt B to a lower fixing member 213R that is fixed below the vehicle body 210 through a pair of long holes 66D of the attachment portion 66B. The lower fixing member 213R has the same configuration as the upper fixing member 212R, and a plurality of first vertical grooves 213A extending along the vertical direction are formed in a portion of the lower fixing member 213R facing the mounting portion 66B. ing. The second vertical groove 66E of the attachment portion 66B is engaged with the first vertical groove 213A.

  As shown in FIG. 9, the second arm shaft 42 is rotatably supported with respect to the mounting member 66 by the first rolling bearing 82 and the second rolling bearing 83. The first rolling bearing 82 is a bearing in which a thrust bearing 82A and a radial bearing 82B are combined together. The thrust bearing 82A is disposed on the upper surface of the insertion portion 66A, and the radial bearing 82B is disposed on the upper end portion of the insertion hole 66C of the insertion portion 66A. The second rolling bearing 83 is attached to the lower end portion of the insertion hole 66C of the insertion portion 66A. The first rolling bearing 82 may be formed with a thrust bearing 82A and a radial bearing 82B separately. The thrust bearing 82A, the radial bearing 82B, and the second rolling bearing 83 may be ball bearings or roller bearings.

  As shown in FIG. 8B, the second pinion shaft 52 protrudes on both sides in the height direction ZC with respect to the pinion support portion 32B. In the second pinion shaft 52, a lower pinion 34 is attached to a portion below the pinion support portion 32B so as not to rotate. A support arm 80 is attached to a portion of the second pinion shaft 52 below the lower pinion 34. As shown in FIG. 8A, the support arm 80 has substantially the same shape as the support arm 60. A pair of rolling elements 81 arranged at an interval in the front-rear direction ZA is attached to the distal end portion of the support arm 80. The pair of rolling elements 81 can rotate about a direction along the height direction ZC as a rotation axis. As shown in FIG. 8C, the pair of rolling elements 81 is accommodated in the lower rail 222 provided at the lower end portion of the door 220R. The lower rail 222 extends in the front-rear direction ZA, and the lower side is open. The pair of rolling elements 81 are in contact with one of both side walls of the lower rail 222 in the vehicle width direction ZB.

  As shown in FIG. 9, the second pinion shaft 52 is rotatably supported with respect to the lower swing arm 32 by a third rolling bearing 84 and a fourth rolling bearing 85. The third rolling bearing 84 is a bearing in which a thrust bearing 84A and a radial bearing 84B are combined together. The thrust bearing 84A is disposed on the upper surface of the pinion support portion 32B, and the radial bearing 84B is disposed on the upper end portion of the insertion hole 32E of the pinion support portion 32B. The 4th rolling bearing 85 is attached to the lower end part of insertion hole 32E of pinion support part 32B. The support arm 80 is supported by the fifth rolling bearing 86 so as to be rotatable with respect to the second pinion shaft 52. The third rolling bearing 84 may have a thrust bearing 84A and a radial bearing 84B formed separately. The thrust bearing 84A, the radial bearing 84B, the fourth rolling bearing 85, and the fifth rolling bearing 86 may be ball bearings or roller bearings.

  As shown in FIG. 8B, the stabilizer 30R includes a pinion adjusting mechanism 90 that can adjust the distance between the upper pinion 33 and the lower pinion 34 (see FIG. 1). The pinion adjusting mechanism 90 includes a second male screw portion 52A provided at a portion of the second pinion shaft 52 above the pinion support portion 32B, a second nut 91 screwed into the second male screw portion 52A, and a second male screw portion 52A. A lock nut 92 that restricts the rotation of the second nut 91 relative to.

  As shown in FIG. 7, the pinion adjusting mechanism 90 includes a length adjusting unit 93 that can adjust the length of the first pinion shaft 51. The length adjusting unit 93 includes a connecting member 56 as with the connecting member 46. The length adjusting unit 93 has the same configuration as the length adjusting unit 73 of the arm adjusting mechanism 70, and a spline 51 </ b> E is formed on the first connecting shaft 51 </ b> A of the first pinion shaft 51.

The adjustment of the stabilizer 30R by the arm adjustment mechanism 70 and the pinion adjustment mechanism 90 will be described.
As shown in FIG. 4B, the arm adjusting mechanism 70 changes the position of the first connecting shaft 41 </ b> A in the height direction ZC with respect to the mounting member 66 by adjusting the screwing amount of the first nut 71. To adjust the position of the upper swing arm 31 in the height direction ZC. Accordingly, since the length of the first arm shaft 41 in the axial direction is adjusted by the length adjusting unit 73 shown in FIG. 7, the position of the second arm shaft 42 (see FIG. 3) in the height direction ZC is adjusted. Not changed. At this time, the length of the first pinion shaft 51 in the pinion connecting shaft 50 is adjusted by the length adjusting portion 93 shown in FIG. 7, so that the height of the second pinion shaft 52 (see FIG. 3). The position in the direction ZC is not changed. For this reason, the distance in the height direction ZC between the upper swing arm 31 and the lower swing arm 32 is adjusted by the arm adjustment mechanism 70.

  As shown in FIG. 8B, the pinion adjusting mechanism 90 changes the position of the first connecting shaft 51 </ b> A in the height direction ZC with respect to the mounting member 66 by adjusting the screwing amount of the second nut 91. To adjust the position of the lower pinion 34 in the height direction ZC. Accordingly, the length of the first pinion shaft 51 is adjusted by the length adjusting unit 93 shown in FIG. 7, and the length of the first arm shaft 41 is adjusted by the length adjusting unit 73. Therefore, the positions of the upper pinion 33 and the upper swing arm 31 (both see FIG. 3) in the height direction ZC are not changed. Therefore, the distance in the height direction ZC between the upper pinion 33 and the lower pinion 34 is adjusted by the pinion adjustment mechanism 90.

  With reference to FIGS. 1-3 and FIGS. 11-12, operation | movement of the plug door apparatus 1 is demonstrated. The positions of the doors 220R and 220L indicated by the two-dot chain line in FIG. 10 are fully open positions.

First, the opening operation of the doors 220R and 220L will be described.
As shown in FIGS. 11A and 11B, when the positions of the doors 220R and 220L are in the fully closed position, the arms 21A (solid lines) of the retracting devices 21R and 21L cover the upper end of the pinion connecting shaft 50 with the vehicle width. The arm 22A (solid line) of the retracting devices 22R and 22L retracts the lower end portion of the pinion connecting shaft 50 to the inner side in the vehicle width direction ZB. Thereby, it is suppressed that the front-end | tip part of the upper side swing arm 31 and the lower side swing arm 32 (refer FIG. 10 (a) and (b)) rotates toward the outer side of the vehicle width direction ZB. 12A, when the doors 220R and 220L are in the fully closed position, the lock pins 23A of the lock cylinders 23R and 23L are inserted into the holes 32G of the lower swing arm 32. For this reason, the rotation of the lower swing arm 32 is restricted.

  When a command signal for opening the doors 220R and 220L is received from a control device (not shown) provided in the vehicle 200, as shown in FIGS. 11 (a) and 11 (b), the retracting devices 21R, 21L, The arms 21 </ b> A and 22 </ b> A (two-dot chain lines) of 22 </ b> R and 22 </ b> L are separated from the pinion connecting shaft 50. Further, as shown in FIG. 12B, the lock pins 23A of the lock cylinders 23R and 23L move upward and come out of the holes 32G of the lower swing arm 32. Thereby, the restriction | limiting of rotation of the upper side swing arm 31 and the lower side swing arm 32 is cancelled | released.

  Then, as shown in FIGS. 2A and 3A, the drive cylinder 12 moves so that the rods 11R and 11L move in opposite directions in the front-rear direction ZA from the fully closed position to the doors 220R and 220L. Drive. As a result, as shown in FIG. 1A, the slide members 14R and 14L connected to the rods 11R and 11L move in directions opposite to each other in the front-rear direction ZA. For this reason, the doors 220R and 220L move in opposite directions in the front-rear direction ZA through the door hangers 15R and 15L connected to the slide members 14R and 14L.

  At this time, as shown in FIG. 2, the rolling elements 15F move along the inclined portions 19A of the second rails 19R and 19L. Accordingly, as shown in FIGS. 10A and 10B, the upper swing arm 31 and the lower swing arm 32 of the stabilizers 30R and 30L rotate in synchronization. In addition, the upper pinion 33 and the lower pinion 34 of the stabilizers 30R and 30L also rotate in synchronization. Since the plug door device 1 operates in this way, the doors 220R and 220L move outside the vehicle width direction ZB while moving in the front-rear direction ZA. At this time, as shown in FIG. 10C, the pair of rolling elements 230 provided at the lower ends of the doors 220R and 220L are arranged on the inclined portion 231A of the rail 231 (two-dot chain line) provided on the vehicle body 210. Move along.

  As shown in FIG. 2, when the rolling element 15F moves along the linear portion 19B of the second rails 19R and 19L, as shown in FIGS. 10 (a) and 10 (b), the upper pinion 33 and The lower pinion 34 rotates synchronously, while the upper swing arm 31 and the lower swing arm 32 do not rotate. For this reason, the doors 220R and 220L move only in the front-rear direction ZA. At this time, as shown in FIG. 10C, the pair of rolling elements 230 moves along the straight portion 231 </ b> B of the rail 231.

Next, the closing operation of the doors 220R and 220L will be described.
When the positions of the doors 220R and 220L as shown in FIG. 2B and FIGS. 10A and 10B are fully opened, the plug door device 1 instructs the control device to close the doors 220R and 220L. When the signal is received, the drive cylinder 12 is controlled so that the rods 11R and 11L move in the direction opposite to that when the doors 220R and 220L are opened. Thereby, after the rolling element 15F moves the linear part 19B of 2nd rail 19R, 19L, it moves the inclination part 19A. Accordingly, the upper pinion 33 and the lower pinion 34 rotate synchronously while the rolling element 15F is moving on the linear portion 19B, and the upper side while the rolling element 15F is moving on the inclined portion 19A. The pinion 33 and the lower pinion 34 rotate synchronously, and the upper swing arm 31 and the lower swing arm 32 rotate synchronously. As shown in FIG. 10C, the pair of rolling elements 230 move along the inclined portion 231A after moving along the straight portion 231B of the rail 231.

  When the positions of the doors 220R and 220L are in the fully closed position, as shown in FIGS. 11A and 11B, the retractors 21R, 21L, 22R, and 22L have the arms 21A and 22A that are connected to the pinion connecting shaft. 50 is driven so as to be pulled in the vehicle width direction ZB. Further, as shown in FIG. 12A, the lock cylinders 23R and 23L are driven so that the lock pin 23A moves downward. As a result, the lock pin 23A is inserted into the hole 32G of the lower swing arm 32, so that the rotation of the lower swing arm 32 is restricted.

  With reference to FIG. 13, the attachment method to the vehicle 200 of the plug door apparatus 1 is demonstrated. In the following description, the constituent elements of the plug door apparatus 1 and the vehicle 200 to which the reference numerals are attached indicate the constituent elements of the plug door apparatus 1 and the vehicle 200 of FIGS.

  The method for attaching the plug door device 1 includes a device attachment step (step S1), a door temporary attachment step (step S2), a position adjustment step (step S3), and a door main attachment step (step S4).

  In the device attachment process, each of the drive mechanism 10 and the stabilizers 30R and 30L is attached to the vehicle body 210 before the doors 220R and 220L are attached. Here, the second vertical groove 66E of the upper mounting member 66 of the stabilizers 30R and 30L is engaged with the first vertical groove 212B of the upper fixing member 212R and 212L, and the second vertical groove 66E of the lower mounting member 66 is the lower side. The fixing members 213R and 213L mesh with the first vertical grooves 213A.

  Next, in the door temporary mounting step, the upper rails 221 of the doors 220R and 220L are placed on the second rolling elements 62 of the support arms 60 of the stabilizers 30R and 30L. Thereby, the doors 220R and 220L are supported by the stabilizers 30R and 30L. In addition, the upper rack 35, the lower rack 36, the upper rail 221, and the lower rail 222 are attached to the doors 220R and 220L in a step prior to the door temporary attachment step.

  Next, in the position adjustment step, the arm adjustment mechanism 70 and the pinion adjustment mechanism 90 cause the upper swing arm 31, the lower swing arm 32, the upper pinion 33, the lower pinion 34, the support arm 60, and The position of the support arm 80 is adjusted. Specifically, the position of the doors 220R and 220L with respect to the vehicle body 210 is adjusted by changing the position of the upper swing arm 31 in the height direction ZC with respect to the upper mounting member 66 by the arm adjustment mechanism 70. As a result of this adjustment, if the lower pinion 34 is displaced in the height direction ZC with respect to the lower rack 36, or the rolling element 81 of the support arm 80 is displaced in the height direction ZC with respect to the lower rail 222, the pinion The position of the lower swing arm 32 in the height direction ZC with respect to the lower attachment member 66 is changed by the adjustment mechanism 90. Thereby, the position of the lower pinion 34 is adjusted to the lower rack 36 in the height direction ZC, and the position of the rolling element 81 is adjusted to the lower rail 222 in the height direction ZC.

  Finally, in the door main attachment process, the doors 220R and 220L are attached to the door hangers 15R and 15L by bolts (not shown). Since the longitudinal direction of the long hole 15E into which the bolts of the door hangers 15R and 15L are inserted becomes the height direction ZC, even if the position of the doors 220R and 220L in the height direction ZC is changed with respect to the vehicle body 210, A bolt fixing hole (not shown) provided in 220L is within the range of the long hole 15E.

The plug door apparatus 1 of this embodiment has the following effects.
(1) The arm connecting shaft 40 is formed by inclining the third arm shaft 43 with respect to the first arm shaft 41 and the second arm shaft 42 by the first universal joint 44 and the second universal joint 45, thereby The axial direction of 41 and the second arm shaft 42 can be adjusted in the vertical direction. Further, the pinion connecting shaft 50 is configured such that the third pinion shaft 51 and the fourth universal joint 55 are inclined with respect to the first pinion shaft 51 and the second pinion shaft 52 by tilting the third pinion shaft 53 and the second pinion shaft 52. The second pinion shafts 52 can be connected in synchronization. Thus, even if the position of the upper swing arm 31 (upper pinion 33) in the vehicle width direction ZB and the position of the lower swing arm 32 (lower pinion 34) in the vehicle width direction ZB are different from each other, the upper swing arm It is possible to suppress the rotation axes of 31 and the lower swing arm 32 from being tilted with respect to the vertical direction. For this reason, it is possible to smoothly move the doors 220R and 220L by suppressing the own weight of the doors 220R and 220L from being a resistance to rotation of the upper swing arm 31 and the lower swing arm 32.
Further, when the axial direction of the first pinion shaft 51 is inclined with respect to the vertical direction, the vertical direction of the upper pinion 33 relative to the upper rack 35 due to processing errors and assembly errors of the upper pinion 33 and the upper rack 35. When the position in the direction is different from the preset position, the following problem occurs. That is, the position where the teeth of the upper pinion 33 and the teeth of the upper rack 35 mesh with each other in the direction in which the upper pinion 33 and the upper rack 35 face each other (the vehicle width direction ZB) is not an appropriate position. The engaging force of 33 becomes excessively large or small, and the upper pinion 33 does not rotate smoothly with respect to the upper rack 35. Similarly, when the axial direction of the second pinion shaft 52 is inclined with respect to the vertical direction, the lower pinion 34 does not rotate smoothly with respect to the lower rack 36.
In that regard, according to the plug door device 1 of the present embodiment, the third pinion shaft 53 is inclined with respect to the first pinion shaft 51 and the second pinion shaft 52 by the third universal joint 54 and the fourth universal joint 55. The axial directions of the first pinion shaft 51 and the second pinion shaft 52 can be adjusted in the vertical direction. Thereby, even if the vertical position of the upper pinion 33 relative to the upper rack 35 is different from the preset position due to processing errors and assembly errors of the upper pinion 33 and the upper rack 35, the upper pinion 33 and the upper rack 35 The position where the teeth of the upper pinion 33 and the teeth of the upper rack 35 mesh with each other in the direction (the vehicle width direction ZB) facing the rack 35 is not changed. As a result, the upper pinion 33 and the upper rack 35 are engaged with each other with an appropriate force. Even if the vertical position of the lower pinion 34 relative to the lower rack 36 is different from the preset position due to processing errors and assembly errors of the lower pinion 34 and the lower rack 36, the lower pinion 34 and the lower rack 36 are engaged with each other with an appropriate force. Therefore, even if the position of the upper pinion 33 in the vehicle width direction ZB and the position of the lower pinion 34 in the vehicle width direction ZB are different from each other, the upper pinion 33 rotates smoothly with respect to the upper rack 35, The side pinion 34 rotates smoothly with respect to the lower rack 36. Therefore, the doors 220R and 220L can be opened and closed smoothly.
Further, for example, in the configuration assuming that the arm connecting shaft 40 is omitted from the plug door device 1, the following problem occurs. That is, the pinion connecting shaft 50 needs to transmit the rotation of one of the upper swing arm 31 and the lower swing arm 32 to the other, but the third arm shaft 43 is connected to the first arm shaft 41 and the universal joints 44 and 45, respectively. Since it rotates with respect to the second arm shaft 42, one rotation of the upper swing arm 31 and the lower swing arm 32 is not properly transmitted to the other. For this reason, it becomes difficult for the pinion connecting shaft 50 to synchronize the rotations of the upper swing arm 31 and the lower swing arm 32.
In that regard, according to the plug door device 1 of the present embodiment, the arm connection shaft 40 that synchronizes the rotation of the upper swing arm 31 and the lower swing arm 32 and the pinion connection shaft that synchronizes the rotation of the upper pinion 33 and the lower pinion 34. 50 are provided separately. Therefore, it is possible to appropriately synchronize the rotations of the upper swing arm 31 and the lower swing arm 32 and the rotations of the upper pinion 33 and the lower pinion 34, respectively.

(2) The position of the doors 220R and 220L relative to the vehicle body 210 can be adjusted by the arm adjusting mechanism 70 of the stabilizers 30R and 30L adjusting the distance between the upper swing arm 31 and the lower swing arm 32.
On the other hand, when the position of the doors 220R and 220L with respect to the vehicle body 210 is changed, the position of the lower rack 36 attached to the doors 220R and 220L is changed. Therefore, by changing the distance between the upper pinion 33 and the lower pinion 34 by the pinion adjusting mechanism 90, the lower pinion 34 can be disposed at a position where the lower pinion 34 meshes with the lower rack 36.
Further, when the distance between the upper rack 35 and the lower rack 36 varies for each door 220R, 220L, the distance between the upper pinion 33 and the lower pinion 34 is changed by the pinion adjustment mechanism 90. The lower pinion 34 can be disposed at a position where the lower pinion 34 meshes with the side rack 36.

  (3) The upper swing arm 31 and the lower swing arm 32 are changed by changing the distance between the upper swing arm 31 and the lower swing arm 32 according to the screwing amount of the first nut 71 of the arm adjustment mechanism 70. Can be adjusted steplessly.

  (4) The distance between the upper pinion 33 and the lower pinion 34 is changed in accordance with the screwing amount of the second nut 91 of the pinion adjusting mechanism 90, so that the distance between the upper pinion 33 and the lower pinion 34 is changed. The distance can be adjusted steplessly.

  (5) Since the connecting member 46 of the arm connecting shaft 40 and the first connecting shaft 41A are spline-fitted, the first arm shaft 41 is restrained from rotating relative to the first connecting shaft 41A and the second connecting shaft 41B. The length in the axial direction can be easily changed. Further, by providing the connecting member 56 of the pinion connecting shaft 50, the same effect as that of the connecting member 46 can be obtained.

  (6) Since the second vertical groove 66E of the mounting member 66 is engaged with the first vertical groove 212B of the upper fixing members 212R and 212L, the inclination of the mounting member 66 with respect to the upper fixing members 212R and 212L is suppressed. For this reason, it is suppressed that the arm connection shaft 40 inserted in the attachment member 66 is inclined with respect to the upper fixing members 212R and 212L. Therefore, it is possible to further suppress the rotation axis of the upper swing arm 31 from being inclined with respect to the vertical direction. The second vertical groove 66E of the mounting member 66 is engaged with the first vertical groove 212B of the lower fixing members 213R and 213L, so that the rotation axis of the lower swing arm 32 is further inclined with respect to the vertical direction. Can be suppressed.

  (7) Since the upper pinion 33 and the upper rack 35 are arranged at the upper part of the doors 220R and 220L, and the lower pinion 34 and the lower rack 36 are arranged at the lower part of the doors 220R and 220L, clothes near the waist of the passenger It is avoided that the child is caught or the child puts his hands on the rack and pinion. Moreover, the fall of the aesthetics of the doors 220R and 220L can be suppressed.

(Modification)
The description related to the above embodiment is an exemplification of a form that the plug door device according to the present invention can take, and is not intended to limit the form. The plug door device according to the present invention may take a form in which, for example, a modification of the embodiment shown below and at least two modifications not contradicting each other are combined.

(Modification 1)
The 3rd arm axis | shaft 43 in the arm connection axis | shaft 40 may be comprised from the universal joint which connects these axes | shafts so that rotation is possible integrally. In short, the number of universal joints of the arm connecting shaft 40 may be three or more.

(Modification 2)
The third pinion shaft 53 in the pinion connecting shaft 50 may be composed of a plurality of shafts and a universal joint that connects these shafts so as to rotate together. In short, the number of universal joints of the pinion connecting shaft 50 may be three or more.

(Modification 3)
The arm adjustment mechanism 70 and the pinion adjustment mechanism 90 may be omitted from at least one of the stabilizers 30R and 30L.

(Modification 4)
The first vertical groove 212B may be omitted from at least one of the upper fixing members 212R and 212L. The second vertical groove 66E may be omitted from the attachment member 66 fixed to the upper fixing member from which the first vertical groove 212B is omitted.
Further, the first vertical groove 213A may be omitted from at least one of the lower fixing members 213R and 213L. The second vertical groove 66E may be omitted from the attachment member 66 fixed to the lower fixing member from which the first vertical groove 213A is omitted.

(Modification 5)
The third arm shaft 43 may be omitted from the arm connecting shaft 40. In this case, at least one of the first universal joint 44 and the second universal joint 45 extends toward the other of the first universal joint 44 and the second universal joint 45, and the first universal joint 44 and the second universal joint 45 are directly connected. Connected. Thereby, the first arm shaft 41 and the second arm shaft 42 are connected only by the first universal joint 44 and the second universal joint 45. In this case, at least one of the first universal joint 44 and the second universal joint 45 may have a shaft that replaces the third arm shaft 43. For example, when the first universal joint 44 has an axis extending toward the second universal joint 45 and the second universal joint 45 does not have an axis, the axis of the first universal joint 44 is the second axis. By being connected to the universal joint 45, the first universal joint 44 and the second universal joint 45 are directly connected. When both the first universal joint 44 and the second universal joint 45 have shafts, the first universal joint 44 and the second universal joint 44 are connected by connecting the shaft of the first universal joint 44 and the shaft of the second universal joint 45. The joint 45 is directly connected.

(Modification 6)
The third pinion shaft 53 may be omitted from the pinion connecting shaft 50. In this case, at least one of the third universal joint 54 and the fourth universal joint 55 extends toward the other of the third universal joint 54 and the fourth universal joint 55, and the third universal joint 54 and the fourth universal joint 55 are directly connected. Connected. Thus, the first pinion shaft 51 and the second pinion shaft 52 are connected only by the third universal joint 54 and the fourth universal joint 55. In this case, at least one of the third universal joint 54 and the fourth universal joint 55 may have a shaft that replaces the third pinion shaft 53. For example, when the third universal joint 54 has an axis extending toward the fourth universal joint 55 and the fourth universal joint 55 does not have an axis, the axis of the third universal joint 54 is the fourth. By being connected to the universal joint 55, the third universal joint 54 and the fourth universal joint 55 are directly connected. When both the third universal joint 54 and the fourth universal joint 55 have shafts, the third universal joint 54 and the fourth universal joint 54 are connected by connecting the shaft of the third universal joint 54 and the shaft of the fourth universal joint 55. The joint 55 is directly connected.

(Modification 7)
At least one of the third universal joint 54 and the fourth universal joint 55 may be omitted from the pinion connecting shaft 50. For example, when both the third universal joint 54 and the fourth universal joint 55 are omitted from the pinion connection shaft 50, the third pinion shaft 53 is directly connected to the first pinion shaft 51 and the second pinion shaft 52, respectively. The
In short, the plug door device can be implemented as the following configuration.
The plug door device is attached to a first swing arm and a second swing arm that are arranged at intervals in the height direction of the door, and a portion of the first swing arm that is different from the rotation axis of the first swing arm. A first pinion, a first rack that is attached to the door and meshes with the first pinion, a second pinion that is attached to a portion of the second swing arm that is different from the rotation axis of the second swing arm, and the door A second rack engaged with the second pinion, a first arm shaft coupled to the first swing arm so as to be coaxial with a rotation axis of the first swing arm, and a second swing arm A second arm shaft coupled to the second swing arm so as to be coaxial with the rotation shaft; the first arm shaft; and the second arm shaft. A first universal joint and a second universal joint that directly or indirectly connect the first swing arm and the first swing arm to rotate integrally with the first swing arm and the second swing arm. An arm connecting shaft that synchronizes the rotation of the second swing arm with the rotation of the second swing arm.
The plug door device further includes a third arm shaft that connects the first arm shaft and the second arm shaft, and the first universal joint connects the first arm shaft and the third arm shaft. The second universal joint may connect the second arm shaft and the third arm shaft.

(Modification 8)
At least one of the first universal joint 44 and the second universal joint 45 may be omitted from the arm connecting shaft 40. For example, when both the first universal joint 44 and the second universal joint 45 are omitted from the arm connection shaft 40, the third arm shaft 43 is directly connected to the first arm shaft 41 and the second arm shaft 42, respectively. The
In short, the plug door device can be implemented as the following configuration.
The plug door device is attached to a first swing arm and a second swing arm that are arranged at intervals in the height direction of the door, and a portion of the first swing arm that is different from the rotation axis of the first swing arm. A first pinion, a first rack that is attached to the door and meshes with the first pinion, a second pinion that is attached to a portion of the second swing arm that is different from the rotation axis of the second swing arm, and the door A second rack engaged with the second pinion, a first pinion shaft connected to the first pinion so as to be coaxial with a rotation shaft of the first pinion, and a rotation shaft of the second pinion A second pinion shaft connected to the second pinion so as to be coaxial, and the first pinion shaft and the second pinion shaft are directly connected to each other. Or a third universal joint and a fourth universal joint that are indirectly connected, and rotate integrally with the first pinion and the second pinion to rotate the first pinion and the second pinion. And a pinion connecting shaft for synchronizing them.
The plug door device further includes a third pinion shaft that connects the first pinion shaft and the second pinion shaft, and the third universal joint connects the first pinion shaft and the third pinion shaft. The fourth universal joint may be configured to connect the second pinion shaft and the third pinion shaft.
The subject corresponding to the plug door device of the modification 8 is as follows.
In Patent Document 1, when the position of the first pinion in the vehicle width direction and the position of the second pinion in the vehicle width direction are different due to the door being formed in a curved shape, the first pinion shaft and the second pinion shaft are It is provided in a state inclined with respect to the vertical direction. For this reason, the teeth of the first pinion and the teeth of the first rack in the direction in which the first pinion and the first rack face each other due to the positional displacement of each component and the vertical sinking of the door over time. There are cases where the meshing position is changed, and the position where the teeth of the second pinion and the teeth of the second rack mesh in the direction in which the second pinion and the second rack face each other. Thereby, there exists a possibility that the opening / closing operation | movement of a door may not be performed smoothly.
From the above, the problem with this plug door device is that the door can be opened and closed smoothly.

1 Plug door device 31 Upper swing arm (first swing arm)
32 Lower swing arm (second swing arm)
33 Upper pinion (first pinion)
34 Lower pinion (second pinion)
35 Upper rack (first rack)
36 Lower rack (second rack)
DESCRIPTION OF SYMBOLS 40 Arm connection shaft 41 1st arm shaft 41A 1st connection shaft 41B 2nd connection shaft 41D 1st external thread part 42 2nd arm shaft 43 3rd arm shaft 44 1st universal joint 45 2nd universal joint 46 Connection member 50 Pinion connection Shaft 51 1st pinion shaft 51A 1st connecting shaft 51B 2nd connecting shaft 52 2nd pinion shaft 52A 2nd male screw part 53 3rd pinion shaft 54 3rd universal joint 55 4th universal joint 56 Connecting member 66 Mounting member 66E 2nd Vertical groove 70 Arm adjustment mechanism 71 First nut 90 Pinion adjustment mechanism 91 Second nut 210 Vehicle body 212R Upper fixing member (fixing member)
212L Upper fixing member (fixing member)
212B 1st vertical groove 213R Lower side fixing member (fixing member)
213L Lower fixing member (fixing member)
213A First longitudinal groove 220R Door 220L Door ZA Front-rear direction ZB Vehicle width direction ZC Height direction

Claims (7)

A first swing arm and a second swing arm that are spaced apart in the height direction of the door;
A first pinion attached to a portion of the first swing arm that is different from the rotation axis of the first swing arm;
A first rack attached to the door and meshing with the first pinion;
A second pinion attached to a portion of the second swing arm that is different from the rotation axis of the second swing arm;
A second rack attached to the door and meshing with the second pinion;
A first arm shaft connected to the first swing arm so as to be coaxial with the rotation axis of the first swing arm, and a second arm connected so as to be coaxial with the rotation axis of the second swing arm. And a third arm shaft that connects the first arm shaft and the second arm shaft, and rotates together with the first swing arm and the second swing arm to rotate the first arm shaft. An arm connecting shaft for synchronizing the rotation of one swing arm and the rotation of the second swing arm;
A first pinion shaft connected to the first pinion so as to be coaxial with the rotation axis of the first pinion, and a second pinion connected to the second pinion so as to be coaxial with the rotation axis of the second pinion. A pinion shaft, and a third pinion shaft connecting the first pinion shaft and the second pinion shaft, and rotating together with the first pinion and the second pinion to rotate the first pinion and the A pinion connecting shaft that synchronizes with the rotation of the second pinion,
The arm connecting shaft includes a first universal joint for connecting the first arm shaft and the third arm shaft, and a second universal joint for connecting the second arm shaft and the third arm shaft,
The pinion connecting shaft includes a third universal joint for connecting the first pinion shaft and the third pinion shaft, and a fourth universal joint for connecting the second pinion shaft and the third pinion shaft. apparatus. An arm adjusting mechanism capable of adjusting a distance between the first swing arm and the second swing arm; and a pinion adjusting mechanism capable of adjusting a distance between the first pinion and the second pinion. The plug door device according to claim 1. The arm adjustment mechanism includes a first male screw portion provided on the first arm shaft, and a first nut screwed into the first male screw portion,
The plug door device according to claim 2, wherein the first nut is capable of changing a position of the first swing arm by moving in the axial direction of the first male screw portion. The pinion adjusting mechanism includes a second male screw portion provided on the second pinion shaft, and a second nut screwed into the second male screw portion,
The plug door device according to claim 2 or 3, wherein the second nut is capable of changing a position of the second pinion by moving in the axial direction of the second male screw portion. At least one of the first arm shaft and the first pinion shaft is individually formed with a first connecting shaft and a second connecting shaft, and is not rotatable with respect to the first connecting shaft and moves with respect to the first connecting shaft. A connecting member connected to the first connecting shaft so as to be capable of being connected to the second connecting shaft so as not to rotate with respect to the second connecting shaft and to move with respect to the second connecting shaft. The plug door device according to claim 3 or 4. An attachment member for attaching the first arm shaft to the vehicle body;
The attachment member is provided on the vehicle body and can be attached to a fixing member having a first vertical groove extending along a vertical direction,
The plug door device according to any one of claims 1 to 5, wherein the mounting member is provided with a second vertical groove that can mesh with the first vertical groove. The first pinion and the first rack are disposed on an upper portion of the door;
The plug door device according to any one of claims 1 to 6, wherein the second pinion and the second rack are disposed at a lower portion of the door.