CN115680415A - Plug door device and rocker arm mechanism - Google Patents

Abstract

The invention relates to a plug door device and a rocker arm mechanism. The plug door device according to an aspect of the present invention includes: a fixed base fixed to a vehicle body of a vehicle; a slide base provided on the fixed base so as to be movable in a vehicle width direction with respect to the fixed base; a door driving mechanism provided on the slide base and moving a door for opening and closing an entrance of a vehicle in a front-rear direction of the vehicle; and a rocker mechanism that guides movement of the door in a width direction of the vehicle and a front-rear direction of the vehicle, and moves an upper portion of the door and a lower portion of the door in conjunction with each other. The rocker arm mechanism includes: a pillar portion that extends in a height direction of the vehicle; a support portion that supports the column portion so as to be rotatable about a longitudinal direction of the column portion as a rotation center; and a fixing portion that engages with the support portion to fix the pillar portion to a vehicle body of the vehicle. The support portion has an engaging portion engageable with the fixing portion at different engaging positions in the longitudinal direction of the pillar portion.

Description

Plug door device and rocker arm mechanism

Technical Field

The invention relates to a plug door device and a rocker arm mechanism.

Background

Conventionally, there is known a plug door device that performs a so-called plug operation, which is an operation of moving a door in a width direction while moving the door in a front-rear direction of a railway vehicle. For example, patent document 1 discloses a swing arm mechanism that moves an upper portion of a door and a lower portion of the door in conjunction with each other.

On the other hand, the following structures are known: a height adjustment mechanism is additionally provided in the rocker mechanism to adjust the height of the strut constituting the rocker mechanism. For example, the height adjusting mechanism has a structure in which a part of the column is formed with a male screw structure and double nuts are provided.

Documents of the prior art

Patent document

Patent document 1: chinese utility model bulletin No. 201687303 specification

Disclosure of Invention

Problems to be solved by the invention

However, when the height adjustment mechanism is separately provided to the rocker mechanism, the number of components is large. Therefore, there is room for improvement in terms of reducing the number of components.

The present invention has been made to solve the above-described problems, and an object thereof is to provide a plug door device and a rocker arm mechanism capable of reducing the number of components.

Means for solving the problems

As a solution to the above problem, the present invention has the following configuration.

(1) The plug door device according to the present invention includes: a fixed base fixed to a vehicle body of a vehicle; a slide base provided on the fixed base so as to be movable in a width direction of the vehicle with respect to the fixed base; a door driving mechanism provided on the slide base and moving a door that opens and closes an entrance of the vehicle in a front-rear direction of the vehicle; and a rocker mechanism that guides movement of the door in a width direction of the vehicle and a front-rear direction of the vehicle and moves an upper portion of the door and a lower portion of the door in an interlocking manner, the rocker mechanism including: a pillar portion that extends in a height direction of the vehicle; a support portion that supports the column portion so as to be rotatable about a longitudinal direction of the column portion as a rotation center; and a fixing portion that engages with the support portion to fix the pillar portion to a vehicle body of the vehicle, the support portion having an engagement portion that is engageable with the fixing portion at different engagement positions in the longitudinal direction.

According to this configuration, the position of the pillar portion in the height direction of the vehicle (the height of the pillar portion) can be adjusted by changing the engagement position of the support portion with respect to the fixing portion. Therefore, it is not necessary to separately provide an adjusting mechanism for adjusting the height of the column section in the column section. That is, in order to adjust the height of the column portion, a member other than the support portion is not necessary. Therefore, the number of components can be reduced.

(2) In the plug door device according to the above (1), the support portion may have a cylindrical shape, and the engagement portion may be provided on an outer peripheral surface parallel to a longitudinal direction of the support portion.

(3) In the plug door device according to the above (2), the support portion may include: a bearing having an inner ring, an outer ring, and rolling elements rolling between the inner ring and the outer ring; and the cylindrical holder that supports the bearing, wherein the column portion is fixed to the inner ring, an inner periphery of the holder is fixed to the outer ring, and the engagement portion is provided on an outer peripheral surface of the holder.

(4) In the plug door device according to the above (2) or (3), the support portion may have an adjustment groove in which a tool can be fitted and the support portion can be rotated at a position different from the engagement portion on the outer peripheral surface of the support portion.

(5) In the plug door device according to the above (4), the fixing portion may have a cylindrical shape covering the support portion, the support portion may have a protruding portion protruding from one end or the other end of the fixing portion, and the adjustment groove may be provided at least in the protruding portion.

(6) In the plug door device according to any one of the above (2) to (5), the support portion may have an adjustment groove into which a tool can be fitted and the support portion may be rotated, at a position on an outer peripheral surface of the support portion different from the engagement portion, the fixing portion may have a through hole, and the support portion may further have a positioning member that is fitted into the adjustment groove through the through hole to determine the engagement position.

(7) In the plug door device according to any one of the above (2) to (6), the pillar portion may include an inner tube portion and an outer tube portion that houses the inner tube portion, and one of a convex portion and a concave portion into which the convex portion is fitted, which extend in a longitudinal direction of the pillar portion in a region where the inner tube portion and the outer tube portion overlap, may be formed in each of the inner tube portion and the outer tube portion.

(8) In the plug door device according to any one of the above (1) to (7), the plug door device may further include a connecting portion that connects a lower portion of the door and the pillar portion, the connecting portion including: a 1 st arm extending so as to connect a lower portion of the door and a 1 st shaft portion parallel to a longitudinal direction of the pillar portion, the 1 st arm being rotatable about the 1 st shaft portion; a 2 nd arm which extends so as to connect the 1 st shaft part and a 2 nd shaft part parallel to the 1 st shaft part and is rotatable about the 1 st shaft part and the 2 nd shaft part; and a 3 rd arm that extends so as to connect the 2 nd shaft portion and the pillar portion, and is rotatable about the 2 nd shaft portion and the pillar portion, the 3 rd arm being movable to a stop point at which movement of the door in the width direction is able to be restricted, the connecting portion being configured to transmit external force acting on the door to the pillar portion when the 3 rd arm is located at the stop point, the support portion including: a bearing that rotatably supports the column section; and a holder supporting the bearing and capable of withstanding the external force.

(9) In the plug door device according to any one of the above (1) to (8), the pillar portion may have a joint portion that is rotatable about a connection portion with the pillar portion at a position below an upper connection portion that connects the upper portion of the door and the pillar portion in the vertical direction and above a lower connection portion that connects the lower portion of the door and the pillar portion in the vertical direction.

(10) In the plug door device according to any one of the above (1) to (9), the engagement portion may be one of a male screw and a female screw, the fixing portion may have the other of the female screw and the male screw, and the one screw may be engaged with the other screw at different engagement positions in a longitudinal direction of the pillar portion.

(11) A rocker mechanism according to an aspect of the present invention is a rocker mechanism that guides movement of a door that opens and closes an entrance of a vehicle in a width direction of the vehicle and a front-rear direction of the vehicle, and moves an upper portion of the door and a lower portion of the door in conjunction with each other, the rocker mechanism including: a pillar portion that extends in a height direction of the vehicle; a support portion that supports the column portion so as to be rotatable about a longitudinal direction of the column portion as a rotation center; and a fixing portion that engages with the support portion to fix the pillar portion to a vehicle body of the vehicle, the support portion having an engagement portion that is engageable with the fixing portion at different engagement positions in the longitudinal direction.

According to this configuration, the position of the support portion in the height direction of the vehicle (the height of the support portion) can be adjusted by changing the engagement position of the support portion with respect to the fixing portion. Therefore, it is not necessary to separately provide an adjusting mechanism for adjusting the height of the column section in the column section. That is, in order to adjust the height of the column portion, a member other than the support portion is not necessary. Therefore, the number of components can be reduced.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, it is possible to provide a plug door device and a rocker mechanism that can reduce the number of components.

Drawings

Fig. 1 is a front view of a plug door device of an embodiment.

Fig. 2 is a perspective view of the periphery including the upper portion of the rocker mechanism of the embodiment.

Fig. 3 is a perspective view of the periphery including the lower portion of the rocker mechanism of the embodiment.

Fig. 4 is a perspective view of one of the front-rear directions of the rocker mechanism of the embodiment.

Fig. 5 is a perspective view of the periphery including the lower connecting portion of the rocker arm mechanism of the embodiment.

Fig. 6 is a perspective view of the periphery including a cross section obtained by cutting the lower coupling portion of the embodiment along the XZ plane.

Fig. 7 is a view including a cross section obtained by cutting the support portion and the fixing portion of the embodiment on the XY plane.

Fig. 8 is a view including a cross section obtained by cutting the inner tube portion and the outer tube portion of the strut portion of the embodiment along the XZ plane.

Description of the reference numerals

1. A plug door device; 2. a door; 3. a fixed base; 4. a slide base; 15. a lifting port; 30. a door drive mechanism; 50. a rocker arm mechanism; 51. a pillar section; 52. a support portion; 53. a fixed part; 54. an internal thread (another threaded portion); 55. a through hole; 56. a positioning member; 60. a bearing; 61. an inner ring; 62. an outer ring; 63. a rolling body; 70. a holder; 71. external threads (a meshed portion, a threaded portion); 72. an adjustment groove; 73. a protrusion; 80. an inner tube portion; 81. an outer tube portion; 82. a convex portion; 83. a recess; 85. a joint portion; 110. an upper connecting portion; 120. a lower coupling portion (coupling portion); 121. a 1 st arm; 122. a 2 nd arm; 123. a 3 rd arm; 124. 1 st shaft part; 125. the 2 nd shaft part.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, an example of a plug door device including a pair of doors that are double-leaf-push-and-pull for opening and closing an entrance of a railway vehicle (vehicle) will be described. In the following description, for example, expressions such as "parallel", "orthogonal", "central", "coaxial", etc., which indicate relative or absolute arrangements, refer not only to arrangements such as strictly, but also to arrangements which are relatively displaced by a tolerance, an angle or a distance to such an extent that the same function can be obtained. In the drawings used in the following description, the scale of each member is appropriately changed so that each member can be made into a recognizable size.

Fig. 1 is a front view of a plug door device of an embodiment. Fig. 2 is a perspective view of the periphery including the upper portion of the rocker mechanism of the embodiment.

As shown in fig. 1, the plug door device 1 includes a pair of doors 2, a fixed base 3, a slide base 4, a door drive mechanism 30, and a rocker mechanism 50. Fig. 1 and 2 show a state in which the door 2 is at the fully closed position.

In the following description, an orthogonal coordinate system of X, Y, and Z is used as necessary. The X direction coincides with the front-rear direction of the vehicle. The Y direction coincides with the width direction of the vehicle. The Z direction indicates a height direction (gravity direction) of the vehicle orthogonal to the X direction and the Y direction. In the following description, the arrow side in the figure is a plus (+) side, and the side opposite to the arrow is a minus (-) side among the X direction, the Y direction, and the Z direction. The + Y side corresponds to the outer side in the width direction, and the-Y side corresponds to the inner side in the width direction. The + Z side corresponds to the upper side in the direction of gravity, and the-Z side corresponds to the lower side in the direction of gravity.

The plug door device 1 supports the door 2 in such a manner that the outer surface of the vehicle body side wall is flush with the outer surface of the door 2 when the door 2 is at the fully closed position. The door 2 includes a door leaf 10 and a door hanger 11 connected to the door leaf 10. The door 2 is mounted on the slide base 4. The door hanger 11 is supported by the slide base 4 in a state of being movable in the front-rear direction relative to the slide base 4.

The fixed base 3 is fixed to a vehicle body of a vehicle. The vehicle body is a frame constituting a framework of the vehicle. The fixed base 3 is provided above a boarding/alighting port 15 of the vehicle. The fixed base 3 extends in the front-rear direction so as to straddle the upper edge of the entrance 15. Rail bases 9 extending in the width direction are connected to both ends of the fixed base 3 in the front-rear direction.

The slide base 4 is provided on the fixed base 3. The slide base 4 slides in the width direction with respect to the fixed base 3 by a driving force from a driving source (e.g., a motor), not shown, to move the door 2 in the width direction. For example, the output shaft of the motor is rotatable in one direction and the other direction (reversible) around the output shaft. The slide base 4 is provided below the fixed base 3. The slide base 4 extends in the front-rear direction so as to extend along the upper end edge of the entrance 15. Both ends of the slide base 4 in the front-rear direction are movable in the width direction along the rail base 9.

The door drive mechanism 30 is provided on the slide base 4. The door drive mechanism 30 moves the door 2 that opens and closes the entrance 15 of the vehicle in the front-rear direction of the vehicle. As shown in fig. 2, the door drive mechanism 30 includes: a motor output shaft 31 to which a driving force from a driving source (not shown) is transmitted; and an endless belt 32 extending in the front-rear direction. The motor output shaft 31 includes a gear 33 that rotates about an axis along the height direction. A pulley 34 rotatable about an axis parallel to the rotation axis of the gear 33 (an axis in the height direction) is provided at a position apart from the gear 33 in the front-rear direction.

The belt 32 is mounted on a gear 33 and a pulley 34. The belt 32 moves (revolves) around the gear 33 and the pulley 34 in conjunction with the rotation of the gear 33. The belt 32 is connected with the door hanger 11. The door hanger 11 moves in the front-rear direction together with the movement of the belt 32.

Hereinafter, an example of an operation of moving the door in the width direction while moving the door in the front-rear direction, that is, a so-called plug operation will be described.

the-X side door 2 of the pair of doors 2 is connected to the-Y side portion of the belt 32 by means of the door hanger 11. On the other hand, the + X-side door 2 is connected to the + Y-side portion of the belt 32 via the door hanger 11. As described above, the belt 32 is bridged over the gear 33 and the pulley 34 at positions spaced apart from each other in the front-rear direction, and therefore, the-Y-side portion and the + Y-side portion of the belt 32 move in opposite directions to each other in the front-rear direction. Therefore, when the belt 32 moves, the gate 2 on the-X side and the gate 2 on the + X side move in the opposite directions to each other in the front-rear direction.

A driving force from a driving source (not shown) is transmitted to the belt 32, and the door hanger 11 connected to the belt 32 moves, so that the pair of doors 2 moves from the fully closed position (a position where the outer surface of the side wall of the vehicle body is flush with the outer surface of the door 2) shown in fig. 2 to the fully open position. In the example of fig. 2, the door 2 on the-X side moves from the fully closed position to the outside in the width direction (specifically, to be specific, to be inclined including the width direction) and then moves straight in the-X direction to reach the fully open position. On the other hand, the door 2 on the + X side moves from the fully closed position to the outside in the width direction (specifically, an inclination including the width direction) and then moves straight in the + X direction to reach the fully open position.

The door driving method is not limited to a so-called belt type in which the door driving mechanism 30 includes the belt 32. For example, the door may be driven by a so-called screw type in which a screw shaft corresponding to a bolt is rotated by a motor to open and close a door attached to a ball nut corresponding to a nut. Alternatively, the door may be driven by a so-called rack-and-pinion system, in which a pinion of a rack-and-pinion mechanism is rotated by a motor to open and close a door attached to a rack rail. For example, the driving method of the door can be changed according to the required specification.

Fig. 1 is a front view of the periphery including the rocker mechanism 50 of the embodiment. Fig. 2 is a perspective view of the periphery including the upper portion of the rocker mechanism 50 of the embodiment. Fig. 3 is a perspective view of the periphery including the lower portion of the rocker mechanism 50 of the embodiment. Fig. 4 is a perspective view of one of the front-rear directions of the rocker mechanism 50 of the embodiment. In the drawings, a reference character a is given to the end of one component (-X side) of the rocker arm mechanism 50 in the front-rear direction, and a reference character B is given to the end of the other component (+ X side). However, when no particular distinction is required, the reference numerals at the end are omitted for explanation.

The rocker mechanism 50 guides the movement of the door 2 that opens and closes the entrance 15 of the vehicle in the width direction of the vehicle and the front-rear direction of the vehicle, and moves the upper portion of the door 2 and the lower portion of the door 2 in conjunction with each other.

As shown in fig. 3, the rocker arm mechanism 50 includes: a pillar portion 51 extending in the height direction of the vehicle; a support portion 52 that supports the column portion 51 so as to be rotatable about the longitudinal direction of the column portion 51 as a rotation center; and a fixing portion 53 that engages with support portion 52 to fix pillar portion 51 to the vehicle body.

As shown in fig. 1, the column portion 51 linearly extends in the height direction. The two support portions 51 are provided separately in the front-rear direction. The support column portion 51 is disposed outside the entrance 15 in the front-rear direction.

Fig. 5 is a perspective view of the periphery including the lower connecting portion 120 of the rocker mechanism 50 of the embodiment. Fig. 6 is a perspective view of the periphery including a cross section of the lower coupling portion 120 of the embodiment cut along the XZ plane.

As shown in fig. 5, the support portion 52 has a cylindrical shape parallel to the longitudinal direction of the pillar portion 51. The column portion 51 and the support portion 52 are arranged on the same axis. As shown in fig. 6, the support portion 52 includes a bearing 60 and a cylindrical holder 70 that supports the bearing 60.

The bearing 60 includes an inner race 61, an outer race 62, and rolling elements 63 rolling between the inner race 61 and the outer race 62. The lower portion of the pillar portion 51 is fixed to the inner race 61. The inner periphery of the holder 70 is fixed to the outer race 62. The outer race 62 is fixed to the inner peripheral surface of the upper portion of the holder 70.

The support portion 52 has an engaging portion 71 engageable with the fixing portion 53 at different engaging positions in the longitudinal direction of the pillar portion 51. The fixing portion 53 has a cylindrical shape covering the support portion 52. The engagement portion 71 is provided on the outer peripheral surface parallel to the longitudinal direction of the support portion 52. The engaging portion 71 is provided on the outer peripheral surface of the holder 70. The engagement portion 71 is a male screw 71 (an example of a screw portion) formed on the outer peripheral surface of the holder 70. The fixing portion 53 has an internal thread 54 (an example of another thread portion) to which the external thread 71 is engaged. The female screw 54 is formed on the inner circumferential surface of the fixing portion 53. The male screw 71 formed on the outer peripheral surface of the holder 70 can be engaged with the female screw 54 formed on the inner peripheral surface of the fixing portion 53 at different engagement positions in the longitudinal direction of the pillar portion 51.

Fig. 7 is a view including a cross section obtained by cutting support portion 52 and fixing portion 53 of the embodiment in the XY plane.

As shown in fig. 7, the holder 70 constituting the support portion 52 has an adjustment groove 72 into which a tool can be fitted and the holder 70 can be rotated, at a position different from the engagement portion 71 on the outer peripheral surface of the holder 70.

As shown in fig. 5, the support portion 52 has a protruding portion 73 protruding from the lower end of the fixing portion 53 (an example of one end of the fixing portion 53). The adjustment groove 72 is provided at least in the projection 73.

The adjustment groove 72 extends parallel to the longitudinal direction of the support portion 52. As shown in fig. 7, the plurality of adjustment grooves 72 (for example, 6 in the present embodiment) are provided on the outer peripheral surface of the holder 70. In the cross-section of fig. 7, the plurality of adjustment grooves 72 are arranged so as to be spaced apart from each other at the same interval in the circumferential direction of the outer peripheral surface of the holder 70. In the sectional view of fig. 7, the external thread 71 formed on the outer peripheral surface of the holder 70 corresponds to a portion between two adjacent adjustment grooves 72 in the circumferential direction of the outer peripheral surface of the holder 70.

The fixing portion 53 is formed with a through hole 55. The through hole 55 opens in the radial direction of the cylindrical fixing portion 53. The support portion 52 has a positioning member 56 that is fitted into the adjustment groove 72 through the through hole 55 to determine the engagement position. For example, the positioning member 56 is a bolt that can be fitted into the adjustment groove 72 through the through hole 55. For example, in a state where the positioning member 56 is fitted in the adjustment groove 72, the position of the support portion 52 with respect to the fixing portion 53 is restricted (rotation of the holder 70 about the longitudinal direction of the column portion 51). Thereby, the engagement position of the male screw 71 formed on the outer peripheral surface of the holder 70 with respect to the female screw 54 formed on the inner peripheral surface of the fixing portion 53 is determined.

Fig. 8 is a view including a cross section of the strut member 51 of the embodiment cut along the XZ plane by the inner tube portion 80 and the outer tube portion 81.

As shown in fig. 8, the column part 51 includes an inner tube part 80 and an outer tube part 81 that houses the inner tube part 80. The inner tube portion 80 and the outer tube portion 81 are formed with one of a convex portion 82 extending in the longitudinal direction of the pillar portion 51 in a region where the inner tube portion 80 and the outer tube portion 81 overlap, and a concave portion 83 into which the convex portion 82 is fitted, respectively.

The inner tube portion 80 has a cylindrical inner column portion 80a extending in the longitudinal direction of the column portion 51. A convex portion 82 extending in the longitudinal direction of the pillar portion 51 is formed on the outer peripheral surface of the inner pillar portion 80a.

The outer tube portion 81 has a cylindrical outer tube portion 81a that houses the inner column portion 80a. A recess 83 into which the protrusion 82 is fitted is formed on the upper end side of the outer tube 81a. The recess 83 extends in the longitudinal direction of the pillar portion 51. The length of the concave portion 83 in the longitudinal direction is longer than the length of the convex portion 82 in the longitudinal direction.

In a state where the convex portion 82 of the inner tube portion 80 is fitted in the concave portion 83 of the outer tube portion 81, the inner tube portion 80 and the outer tube portion 81 restrict movement in the circumferential direction (rotation with the longitudinal direction of the column portion 51 as the rotation center) and allow movement in the axial direction (movement in the longitudinal direction of the column portion 51) with respect to each other.

The lower portion of the outer tube 81 is supported by the support portion 52 (see fig. 5). For example, in the case where the support portion 52 is engaged with the fixing portion 53 at different engagement positions in the longitudinal direction, the outer tubular portion 81 is displaced to different positions in the longitudinal direction with respect to the inner tubular portion 80.

As shown in fig. 2, the upper end portion of the pillar portion 51 is attached to the upper portion of the vehicle body via the upper bracket 40. As shown in fig. 3, the lower end portion of the pillar portion 51 is attached to the vehicle body lower portion via the lower bracket 41. The column portion 51 is supported rotatably about an axis extending in the height direction with respect to the brackets 40 and 41. The fixing portion 53 corresponds to a portion of the lower holder 41 that engages with the support portion 52 (a cylindrical portion that covers the support portion 52).

As shown in fig. 4, the lower bracket 41 is formed with bolt holes 42 through which bolts for fixing the lower bracket 41 to the lower portion of the vehicle body are inserted. A plurality of bolt holes 42 (for example, 3 in the present embodiment) are arranged at intervals in the height direction of the vehicle. For example, the bolt hole 42 may have a long hole shape having a long side in the width direction of the vehicle. This enables the lower bracket 41 to be positioned with respect to the lower portion of the vehicle body in the width direction of the vehicle.

The plug door device is provided with: an upper connection portion 110 (see fig. 2) that connects an upper portion of the door 2 and an upper portion of the pillar portion 51; and a lower connection portion 120 that connects a lower portion of the door 2 and a lower portion of the pillar portion 51 (see fig. 3, an example of a connection portion that connects the lower portion of the door and the pillar portion 51).

As shown in fig. 2, the upper connection portion 110 is attached to the upper portion of the support portion 51 so as to be non-rotatable. The upper connection portion 110 supports the upper portion of the door 2, and rotates integrally with the pillar portion 51 about the pillar portion 51 as a rotation center. As shown in fig. 4, the upper coupling portion 110 includes: an arm base 111 disposed coaxially with the column portion 51; and an upper arm 112 extending from the arm base 111 toward the upper end of the door 2. For example, the arm base 111 and the upper arm 112 may be integrally formed of the same member.

The arm base 111 has a ring shape coaxial with the column portion 51. The arm base 111 is disposed in the vicinity of a portion of the upper bracket 40 connected to the column portion 51 below the portion. The arm base portion 111 surrounds the periphery of the pillar portion 51. For example, a bearing may be provided between the inner periphery of the arm base 111 and the support portion 51 to rotatably support the support portion 51.

The upper arm 112 extends radially outward (outward in a direction orthogonal to the center axis of the arm base 111) from the arm base 111. The upper arm 112 includes: a 1 st extending portion 113 extending from the arm base portion 111 radially outward with a uniform width; a 2 nd extending part 114 extending upward from the front end of the 1 st extending part 113; and a 3 rd extending portion 115 that tapers from the tip of the 2 nd extending portion 114 outward in the radial direction (specifically, outward in the radial direction along the extension of the 1 st extending portion 113 when viewed in the height direction). As shown in fig. 2, a guide member 20 that guides the movement of the upper arm 112 in the front-rear direction is provided on the slide base 4. As shown in fig. 4, the 3 rd extension 115 may also have a rotator 116 rolling along the track of the guide member 20.

As shown in fig. 5, the lower coupling portion 120 includes: a 1 st arm 121 extending so as to connect a lower portion of the door 2 and a 1 st shaft portion 124 parallel to the longitudinal direction of the pillar portion 51 and rotatable about the 1 st shaft portion 124; a 2 nd arm 122 extending to connect the 1 st shaft part 124 and a 2 nd shaft part 125 parallel to the 1 st shaft part 124 and rotatable about the 1 st shaft part 124 and the 2 nd shaft part 125; and a 3 rd arm 123 extending to connect the 2 nd shaft part 125 and the column part 51 and rotatable about the 2 nd shaft part 125 and the column part 51.

The 1 st arm 121 extends in a curved manner so as to connect the lower portion of the door 2 and the 1 st shaft portion 124. In the example of fig. 5, the 1 st arm 121 is bent after extending from the lower portion of the door 2 toward the width direction inner side and then extends in one direction (+ X side) in the front-rear direction. The 1 st arm 121 is connected to the 1 st shaft 124 so as to be rotatable with respect to the 1 st shaft 124 at a portion thereof on the side opposite to the door 2.

Further, the 1 st arm 121 on the side opposite to the door 2 may be connected to the other shaft portion 126 so as to be rotatable with respect to the other shaft portion 126 parallel to the longitudinal direction of the pillar portion 51. For example, the other shaft portion 126 may be provided on the distal end side of the shaft support portion 43 extending from the lower bracket 41 to the outer side in the width direction than the pillar portion 51.

The 2 nd arm 122 extends in a curved manner so as to connect the 1 st shaft part 124 and the 2 nd shaft part 125. In the example of fig. 5, the 2 nd arm 122 has a curved shape that curves radially outward of the column portion 51. The 1 st arm 121 sandwiches a portion of the 2 nd arm 122 on the 1 st shaft portion 124 side from both sides in the longitudinal direction of the column portion 51. The 1 st arm 121 and the 2 nd arm 122 are coupled to be rotatable with respect to each other about the 1 st shaft portion 124.

In the example of fig. 5, a bulging portion 122a bulging in the height direction is provided in the 2 nd arm 122. The bulge portion 122a is formed with a removed portion 122b for weight reduction. The removal portion 122b may not be formed in the projection portion 122a. In addition, the bulging portion 122a may not be provided in the 2 nd arm 122.

The 3 rd arm 123 is attached to the lower portion of the column portion 51 so as not to be rotatable about the longitudinal direction of the column portion 51. The 3 rd arm 123 is connected to the lower holder 41 near above the portion (fixed portion 53) to which the column portion 51 is connected.

The 3 rd arm 123 extends radially outward from the pillar portion 51 (outward in a direction orthogonal to the center axis of the pillar portion 51). The 3 rd arm 123 is coupled to the 2 nd shaft 125 so that the distal end thereof is rotatable with respect to the 2 nd shaft 125. The 2 nd arm 122 is sandwiched between the 3 rd arm 123 on both sides in the longitudinal direction of the column part 51 on the 2 nd shaft part 125 side. The 2 nd arm 122 and the 3 rd arm 123 are coupled to be rotatable with respect to each other about the 2 nd shaft 125.

As shown in fig. 3, a lower rail 90 for guiding the movement of the 1 st arm 121 in the front-rear direction is provided at a lower end side portion of the door 2. The lower rail 90 extends in the front-rear direction.

As shown in fig. 5, the 1 st arm 121 includes rollers 101, 102, and 103 that roll along the lower rail 90. A plurality of rollers 101, 102, and 103 (for example, 3 rollers in the present embodiment) are attached to the 1 st arm 121 on the door 2 side. The rollers 101, 102, and 103 are attached to the portion of the 1 st arm 121 on the door 2 side in a rotatable state around an axis extending in the height direction. The rollers 101, 102, and 103 are disposed above the portion of the 1 st arm 121 on the door 2 side. One (reference numeral 101) of the 3 rollers 101, 102, 103 is an outer roller 101 disposed outside the lower rail 90 in the width direction. The remaining two (reference numerals 102, 103) of the 3 rollers 101, 102, 103 are inner rollers 102, 103 arranged inside the lower guide rail 90 in the width direction.

The lower rail 90 is sandwiched by one outer roller 101 and two inner rollers 102 and 103. The lower guide 90 has a 1 st guide surface 91 (+ outer wall surface on Y side) for guiding the outer roller 101 and a 2 nd guide surface 92 (-inner wall surface on Y side) for guiding the inner rollers 102 and 103.

The rollers 101, 102, 103 move along the guide surfaces 91, 92 (+ Y side outer wall surface or-Y side inner wall surface) of the lower rail 90 in accordance with the sliding movement of the door 2.

For example, when the door 2 moves outward in the width direction (specifically, an inclination including the width direction) from the fully closed position, the outer roller 101 is pressed to the + Y side by the 1 st guide surface 91 of the lower rail 90 (+ Y side outer wall surface). Then, the 1 st arm 121 of the lower coupling portion 120A is pulled to the + Y side, and the 2 nd arm 122 is also pulled to the + Y side. Thus, the 3 rd arm 123 is pulled by the 2 nd arm 122 and rotates clockwise (in the direction of arrow E1 in fig. 3) about the column portion 51A as a rotation center in a bottom view. At this time, the 1 st arm 121 of the other lower coupling section 120B is pulled to the + Y side, and the 2 nd arm 122 is also pulled to the + Y side. Accordingly, the 3 rd arm 123 is pulled by the 2 nd arm 122, and rotates counterclockwise (in the direction of arrow E2 in fig. 3) about the column portion 51B as the rotation center in a bottom view.

After that, when the door 2 moves straight outward in the front-rear direction, the rollers 101, 102, 103 of the two 1 st arms 121 roll along the guide surfaces 91, 92 of the lower guide rail 90. Thereby, the door 2 moves outward in the front-rear direction with respect to the rollers 101, 102, 103 and the 1 st arm 121, and reaches the fully open position.

For example, when the door 2 moves straight inward in the front-rear direction from the fully open position, the rollers 101, 102, 103 of the two 1 st arms 121 roll along the guide surfaces 91, 92 of the lower guide rail 90. When the door 2 is moved inward in the width direction (specifically, when the door is inclined in the width direction), the inner rollers 102 and 103 are pressed to the-Y side by the 2 nd guide surface 92 (-Y side inner wall surface) of the lower guide rail 90. Then, the 3 rd arm 123 of the lower connecting portion 120A is pressed by the 2 nd arm 122, and rotates counterclockwise (in the direction opposite to the arrow E1 direction in fig. 3) with the column portion 51A as the rotation center in a bottom view.

At this time, the 3 rd arm 123 of the other lower coupling portion 120B is pressed by the 2 nd arm 122, and rotates clockwise (in a direction opposite to the direction of the arrow E2 in fig. 3) around the column portion 51B as a rotation center in a bottom view. Thereby, the door 2 moves to the-Y side with the rotation of the 3 rd arm 123, and reaches the fully closed position.

The 3 rd arm 123 can move to a dead point where the movement of the door 2 in the width direction can be restricted. The dead point is a position (position shown in fig. 5) where the lower connection portion 120 (so-called link mechanism) having the 1 st arm 121, the 2 nd arm 122, and the 3 rd arm 123 is completely bent. The lower connection portion 120 is configured to transmit an external force acting on the door 2 when the 3 rd arm 123 is positioned at the dead point to the pillar portion 51. When the 3 rd arm 123 is positioned at the dead center, the 1 st shaft portion 124 and the 2 nd shaft portion 125 are disposed on opposite sides of the pillar portion 51. When the 3 rd arm 123 is positioned at the dead point, the door 2 is in the locked state. As shown in fig. 6, the support portion 52 includes a bearing 60 that rotatably supports the column portion 51 and a holder 70 that supports the bearing 60. The holder 70 can endure an external force applied to the door 2 when the 3 rd arm 123 is positioned at the dead point.

For example, when the 3 rd arm 123 is positioned at the dead point, an external force (for example, an external force from one side in the width direction and an inclination including the width direction) acting on the door 2 is transmitted to the pillar portion 51 via the 1 st arm 121, the 2 nd arm 122, and the 3 rd arm 123. The external force transmitted to the column part 51 is transmitted to the holder 70 via the inner ring 61, the rolling elements 63, and the outer ring 62 of the bearing 60.

Thus, the holder 70 receives an external force applied to the door 2 when the 3 rd arm 123 is positioned at the dead point. The external force transmitted to the retainer 70 is transmitted to the vehicle body side via the fixing portion 53.

As shown in fig. 5, the pillar portion 51 has a joint portion 85 that is rotatable about a connection portion with the pillar portion 51 at a position below the upper portion of the coupling door 2 and the upper connection portion 110 of the pillar portion 51 in the vertical direction and above the lower portion of the coupling door 2 and the lower connection portion 120 of the pillar portion 51 in the vertical direction. The joint portion 85 has two pins 86, 87 intersecting with each other on the axis of the column portion 51. For example, the joint portion 85 is a universal joint.

The joint portion 85 is not limited to a universal joint, and may be a spherical bearing. For example, the joint portion 85 may also include at least one of a universal joint and a spherical bearing. For example, the configuration of the joint portion 85 can be changed according to the required specification.

An example of a method of adjusting the height of the column portion 51 constituting the rocker arm mechanism 50 will be described below.

For example, first, a tool is fitted into the adjustment groove 72. Specifically, a tool (e.g., a J-wrench) is fitted into an adjustment groove 72 provided in a projection 73 projecting downward from the lower end of the fixing portion 53. Next, the protrusion 73 (holder 70) is rotated by a tool. When the holder 70 is rotated, the holder 70 engages with the fixing portion 53 at different engagement positions in the longitudinal direction of the column portion 51.

Further, the tool for rotating the holder 70 is not limited to the example of the J-wrench. For example, the holder 70 may be rotated by engaging a hook wrench with the adjustment groove 72. For example, the holder 70 may be rotated by clamping the holder 70 (e.g., a portion different from the engagement portion 71) with an adjustable wrench. For example, when the holder 70 has a hole, the holder 70 may be rotated by fitting a screw into the hole. For example, in the case where the holder 70 has a hexagonal hole, the holder 70 may be rotated by fitting a hexagonal wrench into the hexagonal hole. For example, the form of the tool for rotating the holder 70 may be changed according to the required specifications.

For example, when the holder 70 is rotated in the direction of arrow R in fig. 5, the holder 70 moves in one direction of the longitudinal direction of the column part 51 and engages with the fixing part 53 at the 1 st engagement position. The lower portion of the pillar portion 51 is supported by the holder 70 via the bearing 60, and therefore moves in one direction of the longitudinal direction of the pillar portion 51 (one direction of the height direction of the vehicle) in conjunction with the movement of the holder 70. On the other hand, when the holder 70 is rotated in the direction opposite to the arrow R direction in fig. 5, the holder 70 moves in the other direction of the longitudinal direction of the column part 51 and engages with the fixing part 53 at the 2 nd engagement position different from the 1 st engagement position. The lower portion of the pillar portion 51 moves in the other direction in the longitudinal direction of the pillar portion 51 (the other direction in the height direction of the vehicle) in conjunction with the movement of the holder 70. By rotating the holder 70 in this manner, the height of the column portion 51 can be adjusted.

As described above, the plug door device 1 according to the present embodiment includes: a fixed base 3 fixed to a vehicle body of a vehicle; a slide base 4 provided on the fixed base 3 so as to be movable in the vehicle width direction with respect to the fixed base 3; a door drive mechanism 30 provided on the slide base 4 and moving the door 2 that opens and closes the entrance 15 of the vehicle in the front-rear direction of the vehicle; and a rocker mechanism 50 that guides movement of the door 2 in the width direction of the vehicle and the front-rear direction of the vehicle, and moves an upper portion of the door 2 and a lower portion of the door 2 in conjunction with each other. The rocker arm mechanism 50 includes: a pillar portion 51 extending in the height direction of the vehicle; a support portion 52 that supports the column portion 51 so as to be rotatable about the longitudinal direction of the column portion 51 as a rotation center; and a fixing portion 53 that engages with support portion 52 to fix pillar portion 51 to the vehicle body of the vehicle. The support portion 52 has an engagement portion 71 engageable with the fixing portion 53 at different engagement positions in the longitudinal direction of the pillar portion 51.

According to this configuration, the position of the support portion 51 in the height direction of the vehicle (the height of the support portion 51) can be adjusted by changing the engagement position of the support portion 52 with respect to the fixing portion 53. Therefore, it is not necessary to separately provide an adjustment mechanism for adjusting the height of the column section 51 in the column section 51. That is, in order to adjust the height of the support portion 51, a member other than the support portion 52 is not necessary. Therefore, the number of components can be reduced.

The support portion 52 of the present embodiment has a cylindrical shape. The engagement portion 71 is provided on the outer peripheral surface parallel to the longitudinal direction of the support portion 52.

According to this configuration, the vehicle can be downsized in the height direction compared to the case where the engagement portion 71 is provided at the end portion of the support portion 52 in the longitudinal direction. Further, since the engagement portion 71 is provided on the outer peripheral surface parallel to the longitudinal direction of the support portion 52, the function of the inner peripheral surface side of the support portion 52 (the side supporting the column portion 51 rotatably) is not easily damaged.

The support portion 52 of the present embodiment includes: a bearing 60 having an inner ring 61, an outer ring 62, and rolling elements 63 rolling between the inner ring 61 and the outer ring 62; and a cylindrical holder 70 supporting the bearing 60. The stay portion 51 is fixed to the inner race 61. The inner periphery of the holder 70 is fixed to the outer race 62. The engaging portion 71 is provided on the outer peripheral surface of the holder 70.

According to this structure, the engaging portion 71 is provided on the outer peripheral surface of the holder 70, so that it is not necessary to provide the engaging portion 71 on the bearing 60. Therefore, the function of the bearing 60 is not easily damaged. In addition, the processing load of the bearing 60 can be reduced.

In the support portion 52 of the present embodiment, an adjustment groove 72 into which a tool can be fitted and which can rotate the support portion 52 is provided at a position different from the engagement portion 71 on the outer peripheral surface of the support portion 52.

According to this configuration, since the height of the column part 51 can be adjusted by fitting a tool into the adjustment groove 72, it is not necessary to bring the tool into contact with the engagement part 71. Thus, the engaging portion 71 can be prevented from being damaged by the adjustment.

The fixing portion 53 of the present embodiment has a cylindrical shape covering the support portion 52. The support portion 52 has a protruding portion 73 protruding from one end of the fixing portion 53. The adjustment groove 72 is provided at least in the projection 73.

According to this configuration, since the tool can be easily fitted into the adjustment groove 72 as compared with the case where the support portion 52 does not protrude from one end or the other end of the fixing portion 53, the height of the column portion 51 can be easily adjusted.

The fixing portion 53 of the present embodiment is formed with a through hole 55. The support portion 52 has a positioning member 56 that is fitted into the adjustment groove 72 through the through hole 55 to determine the engagement position.

According to this configuration, since there is no need to provide a positioning structure separately from the adjustment groove 72, the processing load can be reduced.

The column part 51 of the present embodiment includes an inner tube part 80 and an outer tube part 81 that houses the inner tube part 80. The inner tube portion 80 and the outer tube portion 81 are formed with one of a convex portion 82 extending in the longitudinal direction of the pillar portion 51 in a region where the inner tube portion 80 and the outer tube portion 81 overlap, and a concave portion 83 into which the convex portion 82 is fitted, respectively.

According to this configuration, the height of the pillar portion 51 can be adjusted without changing the coupling position of the pillar portion 51 with respect to the upper portion and the lower portion of the door 2, and therefore, the adjustment load can be reduced.

The plug door device 1 of the present embodiment includes a lower connecting portion 120 that connects the lower portion of the door 2 and the pillar portion 51. The lower coupling portion 120 includes: a 1 st arm 121 extending so as to connect a lower portion of the door 2 and a 1 st shaft portion 124 parallel to the longitudinal direction of the pillar portion 51, and rotatable about the 1 st shaft portion 124; a 2 nd arm 122 extending to connect the 1 st shaft 124 and a 2 nd shaft 125 parallel to the 1 st shaft 124, and rotatable about the 1 st shaft 124 and the 2 nd shaft 125; and a 3 rd arm 123 extending to connect the 2 nd shaft part 125 and the column part 51 and rotatable about the 2 nd shaft part 125 and the column part 51. The 3 rd arm 123 can move to a dead point where the movement of the door 2 in the width direction can be restricted. The lower connection portion 120 is configured to transmit an external force acting on the door 2 when the 3 rd arm 123 is positioned at the dead point to the pillar portion 51. The support portion 52 includes: a bearing 60 rotatably supporting the column part 51; and a holder 70 supporting the bearing 60 and capable of withstanding the external force.

According to this configuration, when the 3 rd arm 123 is positioned at the dead point and an external force acts on the door 2, the load applied to the bearing 60 via the lower connection portion 120 and the support portion 51 can be received not only by the bearing 60 but also by the holder 70. Therefore, it is possible to contribute to the improvement of the rigidity of the support portion 52.

The column part 51 of the present embodiment has a joint part 85 rotatable about a connection part with the column part 51 at a position below the upper part of the coupling door 2 and the upper connection part 110 of the column part 51 in the vertical direction and above the lower part of the coupling door 2 and the lower connection part 120 of the column part 51 in the vertical direction.

According to this configuration, the displacement of the column part 51 with respect to the upper and lower parts of the door 2 can be absorbed by the joint part 85, and the transmission of force between the column part 51 and the upper or lower part of the door 2 can be prevented from being hindered by the oblique displacement of each connection part.

The engagement portion 71 of the present embodiment is a male screw 71. The fixing portion 53 has an internal thread 54. The male screw 71 may be engaged with the female screw 54 at different engagement positions in the length direction of the pillar portion 51.

With this structure, the height of the column part 51 can be adjusted by the male/female screw structure.

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

In the above-described embodiment, the example in which the engaging portion is provided on the outer peripheral surface parallel to the longitudinal direction of the support portion has been described, but the present invention is not limited thereto. For example, the engaging portion may be provided on the inner peripheral surface parallel to the longitudinal direction of the support portion. For example, the arrangement form of the engaging portion can be changed according to the required specification.

In the above-described embodiments, the description has been given by taking an example in which the support portion includes a bearing having an inner ring, an outer ring, and rolling elements that roll between the inner ring and the outer ring, and a cylindrical holder that supports the bearing. For example, the support portion may not include the holder. For example, the structural form of the support portion can be changed according to the required specification.

In the above-described embodiment, the example in which the engaging portion is provided on the outer peripheral surface of the holder has been described, but the present invention is not limited thereto. For example, in the case where the support portion does not have a retainer, the meshing portion may be provided on the outer peripheral surface of the outer ring of the bearing. For example, the arrangement form of the engaging portion can be changed according to the required specification.

In the above-described embodiment, the support portion has the adjustment groove in which the tool can be fitted and the support portion can be rotated at a position different from the engagement portion on the outer peripheral surface of the support portion. For example, the support portion may not have an adjustment groove. For example, the support portion may be rotated by sandwiching the support portion with a tool. For example, in the case where the support portion has a hole, the support portion may be rotated by inserting a screw into the hole. For example, the form for rotating the support portion can be changed according to the required specification.

In the above-described embodiment, the example in which the support portion has the protruding portion protruding from one end of the fixing portion has been described, but the present invention is not limited to this. For example, the support portion may have another protruding portion protruding from the other end of the fixing portion. For example, the support portion may have a protruding portion protruding from one end or the other end of the fixing portion. For example, the form of the protruding portion can be changed according to the required specification.

In the above-described embodiments, the example in which the adjustment groove is provided at least in the protruding portion has been described, but the present invention is not limited to this. For example, the adjustment groove may not be provided in the projection. For example, the adjustment groove may be provided on the bottom surface of the support portion. For example, when the bottom surface of the support portion has a hexagonal hole as the adjustment groove, the support portion may be rotated by fitting a hexagonal wrench into the hexagonal hole. For example, the arrangement form of the adjustment groove can be changed according to the required specification.

In the above-described embodiment, the example in which the fixing portion is formed with the through hole and the supporting portion is provided with the positioning member that is fitted into the adjustment groove via the through hole to determine the engagement position has been described, but the present invention is not limited thereto. For example, the fixing portion may not be formed with a through hole. For example, the support portion may not have a positioning member that is fitted into the adjustment groove through the through hole to determine the engagement position. For example, a positioning structure may be provided independently of the adjustment groove. For example, the configuration for determining the engagement position can be changed according to the required specification.

In the above-described embodiment, the example in which the column portion includes the inner tube portion and the outer tube portion that houses the inner tube portion has been described, but the present invention is not limited to this. For example, the column portion may not include the inner tubular portion and the outer tubular portion that houses the inner tubular portion. For example, the pillar portion may be a single member extending in the height direction of the vehicle. For example, the structural form of the column part can be changed according to the required specification.

In the above-described embodiment, the description has been given of the case where the inner tube portion and the outer tube portion are each formed with one of the convex portion extending in the longitudinal direction of the column portion in the region where the inner tube portion and the outer tube portion overlap and the concave portion into which the convex portion is fitted. For example, the inner tube and the outer tube may not be formed with one of a convex portion extending in the longitudinal direction of the column portion in a region where the inner tube and the outer tube overlap, and a concave portion into which the convex portion is fitted. For example, the inner tube portion and the outer tube portion may be formed with one of a plurality of protrusions and recesses into which the plurality of protrusions are fitted, the plurality of protrusions being disposed at intervals in a longitudinal direction of the column portion in a region where the inner tube portion and the outer tube portion overlap each other. For example, the configuration of the convex portion and the concave portion into which the convex portion is fitted can be changed according to the required specification.

In the above-described embodiment, the example in which the lower connection portion that connects the lower portion of the door and the pillar portion is provided and the lower connection portion is the link mechanism having the 1 st arm, the 2 nd arm, and the 3 rd arm is described, but the present invention is not limited thereto. For example, the lower connecting portion may be a link mechanism having two arms or 4 or more arms. For example, the lower coupling portion may not be a link mechanism. For example, the lower connecting portion may be formed of a single arm. For example, the structural form of the lower coupling portion can be changed according to the required specification.

In the above-described embodiment, the example in which the lower connection portion is the link mechanism having the 1 st arm, the 2 nd arm, and the 3 rd arm has been described, but the present invention is not limited thereto. For example, the upper connection portion that connects the upper portion of the door and the pillar portion may be a link mechanism having the 1 st arm, the 2 nd arm, and the 3 rd arm. For example, the structural form of each coupling portion can be changed according to the required specification.

In the above-described embodiment, the explanation has been given of an example in which the pillar portion has the joint portion rotatable about the connecting portion with the pillar portion at a position below the upper portion of the coupling door and the upper connecting portion of the pillar portion in the vertical direction and above the lower portion of the coupling door and the lower connecting portion of the pillar portion in the vertical direction, but the present invention is not limited to this. For example, the strut member may not have an articular portion. For example, the pillar portion may be a single member extending in the vehicle height direction between the upper connecting portion and the lower connecting portion. For example, the structural form of the column part can be changed according to the required specification.

In the above-described embodiment, the example in which the engaging portion is a male screw and the fixing portion has a female screw has been described, but the present invention is not limited thereto. For example, the engaging portion may be a female screw, and the fixing portion may have a male screw. For example, it is also possible that the engaging portion is one of a male screw and a female screw, the fixing portion has the other of the female screw and the male screw, and the one screw is engageable with the other screw at different engagement positions in the longitudinal direction of the pillar portion. For example, the structural form of the engaging portion and the fixing portion (the arrangement form of the male screw or the female screw) can be changed according to the required specification.

For example, in the above-described embodiment, an example in which the plug door device includes a pair of doors that are double-leaf sliding doors that open and close the entrance of the railway vehicle has been described, but the present invention is not limited thereto. For example, the plug door device may be installed in a vehicle other than a railway vehicle. For example, the plug door device may include a single-leaf sliding door.

It is to be noted that the components in the above-described embodiments may be replaced with known components without departing from the scope of the present invention. Further, the above modifications may be combined.

In the embodiments disclosed in the present specification, a member made of a plurality of objects may be formed by integrating the plurality of objects, and conversely, a member made of one object may be divided into a plurality of objects. Whether integrated or not, may be configured so as to achieve the object of the present invention.

Claims (11)

1. A plug door device, wherein,

the plug door device is provided with:

a fixed base fixed to a vehicle body of a vehicle;

a slide base provided on the fixed base so as to be movable in a width direction of the vehicle with respect to the fixed base;

a door driving mechanism provided on the slide base and moving a door that opens and closes an entrance of the vehicle in a front-rear direction of the vehicle; and

a rocker mechanism that guides movement of the door in a width direction of the vehicle and a front-rear direction of the vehicle and moves an upper portion of the door and a lower portion of the door in conjunction with each other,

the rocker arm mechanism includes:

a pillar portion that extends in a height direction of the vehicle;

a support portion that supports the column portion so as to be rotatable about a longitudinal direction of the column portion as a rotation center; and

a fixing portion that engages with the support portion to fix the pillar portion to a vehicle body of the vehicle,

the support portion has an engaging portion engageable with the fixing portion at different engaging positions in the length direction.

2. Plug door apparatus according to claim 1,

the support part is in the shape of a cylinder,

the engaging portion is provided on an outer peripheral surface parallel to the longitudinal direction of the support portion.

3. The plug door apparatus according to claim 2,

the support portion includes:

a bearing having an inner ring, an outer ring, and rolling elements rolling between the inner ring and the outer ring; and

the cylindrical holder supporting the bearing,

the strut part is fixed on the inner ring,

the inner periphery of the holder is fixed to the outer ring,

the engaging portion is provided on an outer peripheral surface of the holder.

4. Plug door arrangement according to claim 2 or 3,

the support portion has an adjustment groove in a position of an outer peripheral surface of the support portion different from the engagement portion, into which a tool can be fitted to rotate the support portion.

5. Plug door arrangement according to claim 4,

the fixing portion has a cylindrical shape covering the support portion,

the support portion has a protruding portion protruding from one end or the other end of the fixing portion,

the adjustment groove is at least arranged on the protruding part.

6. Plug door device according to any one of claims 2 to 5,

the support part has an adjustment groove in a position of an outer peripheral surface of the support part different from the engagement part, into which a tool can be fitted to rotate the support part,

a through hole is formed in the fixing portion,

the support portion further includes a positioning member that is fitted in the adjustment groove via the through hole to determine the engagement position.

7. Plug door arrangement according to one of claims 2 to 6,

the pillar part comprises an inner tube part and an outer tube part for accommodating the inner tube part,

one of a convex portion and a concave portion into which the convex portion is fitted is formed in each of the inner tube portion and the outer tube portion so as to extend in a longitudinal direction of the pillar portion in a region where the inner tube portion and the outer tube portion overlap.

8. Plug door arrangement according to one of claims 1 to 7,

the plug door device further includes a connecting portion for connecting a lower portion of the door and the pillar portion,

the joint portion includes:

a 1 st arm extending so as to connect a lower portion of the door and a 1 st shaft portion parallel to a longitudinal direction of the pillar portion, the 1 st arm being rotatable about the 1 st shaft portion;

a 2 nd arm extending so as to connect the 1 st shaft part and a 2 nd shaft part parallel to the 1 st shaft part, and rotatable about the 1 st shaft part and the 2 nd shaft part; and

a 3 rd arm extending to connect the 2 nd shaft portion and the column portion and rotatable about the 2 nd shaft portion and the column portion,

the 3 rd arm is movable to a dead point that can restrict the movement of the door in the width direction,

the connecting portion is configured to transmit an external force acting on the door to the pillar portion when the 3 rd arm is positioned at the dead point,

the support portion includes:

a bearing rotatably supporting the column part; and

and a holder supporting the bearing and capable of receiving the external force.

9. Plug door device according to any one of claims 1 to 8,

the pillar portion has a joint portion that is rotatable about a connection portion with the pillar portion at a position below an upper connection portion that connects an upper portion of the door and the pillar portion in the vertical direction and above a lower connection portion that connects a lower portion of the door and the pillar portion in the vertical direction.

10. Plug door arrangement according to one of claims 1 to 9,

the engaging portion is a threaded portion of the male thread and the female thread,

the fixing portion has the other of the internal thread and the external thread,

the one threaded portion is capable of meshing with the other threaded portion at different meshing positions in the longitudinal direction of the pillar portion.

11. A rocker mechanism that guides movement of a door that opens and closes an entrance of a vehicle in a width direction of the vehicle and a front-rear direction of the vehicle, and moves an upper portion of the door and a lower portion of the door in an interlocking manner,

the rocker arm mechanism includes:

a pillar portion that extends in a height direction of the vehicle;

a support portion that supports the column portion so as to be rotatable about a longitudinal direction of the column portion as a rotation center; and

a fixing portion that engages with the support portion to fix the pillar portion to a vehicle body of the vehicle,

the support portion has an engaging portion engageable with the fixing portion at different engaging positions in the length direction.

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