Plug door device

Abstract

To provide a plug door device capable of being downsized in the height direction.SOLUTION: A plug door device includes a fixed base, a slide base 4 sliding in the width direction with respect to the fixed base by the driving force from a driving source, and a movement coinciding mechanism 100 for making the direction and the amount of the movement in the width direction on both sides in the longitudinal direction of the slide base 4 coincide with each other. The movement coinciding mechanism 100 includes two fixed shaft members 101 arranged apart from each other in the longitudinal direction and extended in the height direction, a contact arm 111 contacting with the slide base 4, and a transmission arm 113 having a transmission shaft member 112 arranged apart from the fixed shaft members 101, respectively. The movement coinciding mechanism includes two rotation members 102 integrally rotating the contact arm 111 and the transmission arm 113 around the fixed shaft members 101 as rotation centers, and a shaft 103 with longitudinal both ends connected to the transmission shaft members 112 respectively included in the two rotation members 102.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a plug door device. [Background technology]

[0002] Conventionally, there is known a plug door device that moves a door in the width direction while moving it in the front-rear direction of a railway vehicle, i.e., a plug operation. For example, Patent Document 1 discloses a configuration including an upper guide rail that is provided at the top of the door opening of the car body and guides the upper part of the door, a lower guide rail that is provided at the bottom of the door opening and guides the lower part of the door, and a door engine that drives the upper part of the door. In such a plug door device, the upper part of the door is connected to the door engine, and only the upper part of the door is moved by the door engine, and the lower part of the door follows the movement of the upper part of the door, thereby moving the door along the inner surface and the outer surface of the car body. On the other hand, a known plug door device has a configuration that includes a fixed base that is fixed to the vehicle body, and a slide base to which a door is attached that slides in the width direction of the vehicle relative to the fixed base by the driving force from a driving source. In the case of such a plug door device, depending on the number and installation positions of the driving sources, a force (e.g., a motor reaction force) that opposes the driving force from the driving source may be generated in the slide base, and the direction and amount of widthwise movement at both ends of the front-rear direction of the vehicle may differ from each other in the slide base. On the other hand, as a configuration for matching the amount of widthwise movement of one end of the slide base in the fore-and-aft direction with the amount of widthwise movement of the other end, a configuration is known which includes an interlocking shaft extending in the fore-and-aft direction and a connecting mechanism having links connecting the interlocking shaft to each of the fore-and-aft ends of the slide base and the other end. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-168089 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the links rotate around the interlocking shafts extending in the front-rear direction, a space in the height direction is required to allow the links to rotate, so there is room for improvement in terms of making the device smaller in height.

[0005] The present invention has been made to solve the above-mentioned problems, and aims to provide a plug door device that can be made smaller in height. [Means for solving the problem]

[0006] As a means for solving the above problems, the present invention has the following configuration. (1) A plug door device according to an aspect of the present invention includes a fixed base fixed to a vehicle body, a slide base to which a door of the vehicle is attached and which slides in the width direction of the vehicle relative to the fixed base by a driving force from a driving source, and a movement matching mechanism for matching the direction and amount of movement in the width direction at both ends of the front-rear direction of the vehicle on the slide base, wherein the movement matching mechanism includes two fixed shaft members provided on one of the vehicle body or the slide base and arranged at a distance from each other in the front-rear direction and extending in the height direction of the vehicle, a contact arm that contacts the other of the vehicle body or the slide base, and a transmission arm having a transmission shaft member arranged at a distance from the fixed shaft members, and includes two rotating members that rotate together with the contact arm and the transmission arm around the fixed shaft member as a rotation center, and a shaft whose both ends in the front-rear direction are connected to the transmission shaft member of each of the two rotating members. Each of the two fixed shaft members is fixed to the fixed base, each of the two rotating members has a contact arm that contacts the slide base, and the slide base is provided with a guide member that guides the movement of the contact arm in the forward and backward directions. . The term "match" is intended to include not only a perfect match, but also a deviation within a range that does not impede movement in the vehicle's width direction.

[0007] According to this configuration, the rotation member rotates around the fixed shaft member extending in the height direction as the slide base moves in the width direction, so no space is required in the height direction to allow the rotation of the rotation member, and therefore the device can be made smaller in the height direction. In addition, since the shaft is connected at both front and rear ends to the transmission shaft members of each of the two rotating members, the shaft can be preferably positioned between the transmission shaft members of each of the two rotating members and the range of movement of the shaft can be made wider, compared to when the shaft is connected midway.

[0010] ( 2 )the above( 1 In the plug door device described in the above, the guide member may have a rail extending along the front-to-rear direction, and the contact arm may be provided with a rotating body that rolls along the rail.

[0011] ( 3 )(1) above Or (2) In the plug door device described in the above, the contact arm and the transmission arm may extend in directions perpendicular to each other when viewed from the height direction.

[0012] ( 4A plug door device according to an aspect of the present invention includes a fixed base fixed to a vehicle body, a slide base to which a door of the vehicle is attached and which slides in the width direction of the vehicle relative to the fixed base by a driving force from a drive source, and a movement matching mechanism for matching the direction and amount of movement in the width direction at both ends of the slide base in the front-rear direction of the vehicle, the movement matching mechanism being provided on the fixed base and including two fixed shaft members disposed at a distance from each other in the front-rear direction and extending in the height direction of the vehicle, a contact arm that contacts the slide base, and a contact arm that is disposed at a distance from the fixed shaft members. and a transmission arm having a transmission shaft member placed on the contact arm, wherein the contact arm and the transmission arm rotate together with the fixed shaft member as a rotation center, and a shaft whose both ends in the front-rear direction are connected to the transmission shaft member of each of the two rotating members, the slide base is provided with a guide member that guides the movement of the contact arm in the front-rear direction, the guide member has a rail extending along the front-rear direction, the contact arm has a rotor that rolls along the rail, and the contact arm and the transmission arm extend in directions perpendicular to each other when viewed in the height direction.

[0013] According to this configuration, the rotation member rotates around the fixed shaft member extending in the height direction as the slide base moves in the width direction, so no space is required in the height direction to allow the rotation of the rotation member, and therefore the device can be made smaller in the height direction. In addition, by fixing each of the two fixed shaft members to the fixed base, the two fixed shaft members can be fixed to fixed positions on the vehicle body via the fixed base. In addition, a guide member is provided on the slide base to guide the movement of the contact arm in the forward and backward directions, and by guiding the movement of the contact arm in the forward and backward directions by the guide member, the movement of the slide base in the width direction can be converted into rotation of the rotating member. In addition, since the guide member has a rail extending along the front-to-rear direction and the contact arm is equipped with a rotating body that rolls along the rail, the rotating body reduces friction between the contact arm and the rail, so that the widthwise movement of the slide base can be smoothly converted into rotation of the rotating member. In addition, since the shaft is connected at both front and rear ends to the transmission shaft members of each of the two rotating members, the shaft can be preferably positioned between the transmission shaft members of each of the two rotating members and the range of movement of the shaft can be made wider, compared to when the shaft is connected midway. In addition, since the contact arm and the transmission arm extend in directions perpendicular to each other when viewed from the height direction, when a straight line passing through the axis of the fixed shaft member and the center of the contact portion of the contact arm is taken as a virtual line when viewed from the height direction, the distance between the virtual line and the axis of the transmission shaft member is maximized when viewed from the height direction, thereby maximizing the amount of movement that can be aligned.

[0016] ( 5 )From (1) above ( 4 ) To The described plug door device further includes a swing arm mechanism that guides movement of the door in the width direction and the fore-and-aft direction, the swing arm mechanism being provided on the vehicle body and arranged at a distance in the fore-and-aft direction and including two pillars extending in the height direction of the vehicle, two upper arms that support an upper part of the door and rotate together with the pillar as a center of rotation, and two lower arms that support a lower part of the door and rotate together with the pillar as a center of rotation, and the movement matching mechanism may include the two pillars as the two fixed shaft members, the two rotating members including the two upper arms, and the shaft whose both ends in the fore-and-aft direction are connected to each of the two pillars via the transmission shaft members each of the two rotating members has.

[0017] ( 6 ) According to an aspect of the present invention The plug door device is a fixed base fixed to a body of a vehicle; a slide base to which a door of the vehicle is attached and which slides in a width direction of the vehicle relative to the fixed base by a driving force from a driving source; and a movement matching mechanism for matching a direction and an amount of movement in the width direction at both ends of the slide base in a front-rear direction of the vehicle by using a rotational force that rotates within a plane perpendicular to a height direction of the vehicle. a swing arm mechanism that guides movement of the door in the width direction and the front-rear direction; ,of the swing arm mechanism is provided on the vehicle body and comprises two pillars that are disposed at a distance from each other in the front-rear direction and extend in a height direction of the vehicle, two upper arms that support an upper part of the door and rotate integrally with the pillar as a rotation center, and two lower arms that support a lower part of the door and rotate integrally with the pillar as a rotation center, and the movement matching mechanism comprises the two pillars that apply a rotational force that rotates within the plane, two pillar side bevel gears that rotate integrally with the pillar as a rotation center, two link side bevel gears that mesh with the two pillar side bevel gears, respectively, and a link shaft member whose both ends in the front-rear direction are connected to the two link side bevel gears. R .

[0018] ( 7 ) According to an aspect of the present invention The plug door device is a fixed base fixed to a body of a vehicle; a slide base to which a door of the vehicle is attached and which slides in a width direction of the vehicle relative to the fixed base by a driving force from a driving source; and a movement matching mechanism for matching a direction and an amount of movement in the width direction at both ends of the slide base in a front-rear direction of the vehicle by using a rotational force that rotates within a plane perpendicular to a height direction of the vehicle. a swing arm mechanism that guides movement of the door in the width direction and the front-rear direction; ,of the swing arm mechanism is provided on the vehicle body, and comprises two pillars that are disposed at a distance from each other in the front-rear direction and extend in a height direction of the vehicle, two upper arms that support an upper part of the door and rotate integrally with the pillar as a rotation center, and two lower arms that support a lower part of the door and rotate integrally with the pillar as a rotation center, and the movement matching mechanism comprises the two pillars that apply a rotational force that rotates within the plane, two pillar-side gears that rotate integrally with the pillar as a rotation center, an intermediate gear that meshes with one of the two pillar-side gears, and a toothed belt that meshes with the other of the two pillar-side gears and the intermediate gear. R . Effect of the Invention

[0019] According to the present invention, a plug door device can be provided that can be made smaller in height. [Brief description of the drawings]

[0020] [Figure 1]FIG. 1 is a perspective view of a plug door device according to a first embodiment. [Diagram 2] FIG. 2 is a perspective view of the periphery including the movement matching mechanism of the first embodiment. [Diagram 3] FIG. 2 is a perspective view of the periphery including one side in the front-rear direction of the movement matching mechanism of the first embodiment. [Figure 4] FIG. 11 is a perspective view of the other of the movement matching mechanisms in the front-rear direction of the first embodiment and its surroundings. [Diagram 5] FIG. 2 is a top view of the periphery including one side in the front-rear direction of the movement matching mechanism of the first embodiment. [Figure 6] 13 is a top view of the periphery including the other of the front-rear direction of the movement matching mechanism of the first embodiment. FIG. [Figure 7] 5A to 5C are explanatory diagrams illustrating the operation of the movement matching mechanism according to the first embodiment. [Figure 8] 5A to 5C are explanatory diagrams illustrating the effect of the movement matching mechanism according to the first embodiment. [Figure 9] FIG. [Figure 10] FIG. 11 is a bottom view of the plug door device of the second embodiment. [Figure 11] FIG. 11 is a front view of the periphery including a swing arm mechanism according to a second embodiment. [Figure 12] FIG. 11 is a perspective view of the periphery including an upper portion of a swing arm mechanism according to a second embodiment. [Figure 13] FIG. 11 is a perspective view of the periphery including the lower part of a swing arm mechanism according to a second embodiment. [Figure 14] FIG. 11 is a perspective view of one side of a swing arm mechanism in a front-rear direction according to a second embodiment. [Figure 15] 13 is a bottom view of the periphery including one side in the front-rear direction of the movement matching mechanism of the second embodiment. FIG. [Figure 16] 13 is a bottom view of the periphery including the other side in the front-rear direction of the movement matching mechanism of the second embodiment. FIG. [Figure 17] 13A to 13C are explanatory diagrams illustrating the operation of the movement matching mechanism of the second embodiment. [Figure 18] FIG. 13 is a bottom view of the periphery including the shafts that configure the movement matching mechanism of the third embodiment. [Figure 19]FIG. 11 is a front view of the periphery including the shaft of the third embodiment. [Figure 20] FIG. 13 is a schematic diagram of a movement matching mechanism according to a fourth embodiment. [Figure 21] FIG. 13 is a schematic diagram of a movement matching mechanism according to a fifth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following embodiment, an example will be described in which a pair of doors that open and close the entrance and exit of a railway vehicle (car) are provided as a plug door device. In the following description, expressions indicating relative or absolute arrangements, such as "parallel," "orthogonal," "center," and "coaxial," do not only mean such arrangements strictly, but also include a state in which the components are relatively displaced with a tolerance or an angle or distance that provides the same function. In the drawings used in the following description, the scale of each component has been appropriately changed to make each component recognizable in size.

[0022] First Embodiment Fig. 1 is a perspective view of a plug door device according to a first embodiment of the present invention, and Fig. 2 is a perspective view of the periphery including a movement matching mechanism according to the first embodiment of the present invention. 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 drive source 6, and a movement matching mechanism 100. In Fig. 1, the pair of doors 2 are indicated by two-dot chain lines. Figs. 1 and 2 each show the movement matching mechanism 100 in a state in which the doors 2 are positioned in a fully closed position.

[0023] In the following explanation, an X, Y, Z Cartesian coordinate system 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 the height direction of the vehicle (gravity direction) perpendicular to the X and Y directions. In the following explanation, among the X, Y, and Z directions, the arrow side in the figure is the plus (+) side, and the opposite side to the arrow is the minus (-) side. 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 gravity direction, and the -Z side corresponds to the lower side in the gravity direction.

[0024] The plug door device 1 supports the door 2 so that when the door 2 is in a fully closed position, the outer surface of the vehicle body side wall and the outer surface of the door 2 are flush with each other. The door 2 includes a door leaf 10 and a door hanger 11 connected to the door leaf 10. The door 2 is attached to a slide base 4. The door hanger 11 is supported by the slide base 4 in a state in which it can move in the front-rear direction relative to the slide base 4. It should be noted that the plug door device 1 of the first embodiment does not have a swing arm mechanism that guides the movement of the door 2 in the width direction and the front-rear direction.

[0025] The fixed base 3 is fixed to the body of the vehicle. The body is a frame that forms the skeleton of the vehicle. The fixed base 3 is provided above the boarding / alighting entrance 15 of the vehicle. The fixed base 3 extends in the front-rear direction so as to straddle the upper edge of the boarding / alighting entrance 15. A rail base 9 extending in the width direction is connected to each of both ends of the fixed base 3 in the front-rear direction.

[0026] The slide base 4 slides in the width direction relative to the fixed base 3 by the driving force from the drive source 6, thereby moving the door 2 in the width direction. The slide base 4 is provided below the fixed base 3. The slide base 4 extends in the front-rear direction so as to follow the upper edge of the boarding / alighting opening 15. Both ends of the slide base 4 in the front-rear direction are movable in the width direction along the rail base 9.

[0027] The driving source 6 outputs a driving force for moving the door 2. For example, the driving source 6 is a motor. The output shaft of the motor rotates around an axis along the front-rear direction. For example, the output shaft of the motor is rotatable in one direction and the other direction around an axis along the front-rear direction (forward and reverse rotation is possible). The driving source 6 is connected to a movable power cable 29, a so-called Cableveyor (registered trademark). The driving source 6 is supported by the slide base 4 via a power transmission mechanism 30. The driving source 6 is movable in the width direction together with the movement of the slide base 4 in the width direction.

[0028] The power transmission mechanism 30 includes a power conversion mechanism 31 that converts the direction of the driving force from the drive source 6, and an endless belt 32 that extends along the front-rear direction. The power conversion mechanism 31 converts the rotation of the motor's output shaft about an axis along the front-rear direction into rotation about an axis along the width direction. The power conversion mechanism 31 includes a gear 33 that rotates about an axis along the width direction. A pulley 34 is provided at a position separated from the gear 33 in the front-rear direction, the pulley 34 being rotatable about an axis parallel to the rotation axis of the gear 33 (axis along the width direction).

[0029] The belt 32 is stretched across a gear 33 and a pulley 34. The belt 32 moves (circulates) around the gear 33 and the pulley 34 in conjunction with the rotation of the gear 33. The door hanger 11 is connected to the belt 32. The door hanger 11 moves in the front-rear direction together with the movement of the belt 32.

[0030] A connecting member 35 that moves together with the movement of the belt 32 is attached to the belt 32. A rotating body (not shown) that rolls along an opening / closing path (not shown) of the door 2 while being guided by a guide rail (not shown) when the door 2 is opened or closed is supported by the connecting member 35. In Fig. 1, reference numeral 7 denotes a restraining member that restrains the rotating body when the door 2 is in the fully closed position, and reference numeral 8 denotes a locking mechanism that holds the restraining member 7 in a position where the restraining member 7 restrains the rotating body. An example of the operation of moving the door in the width direction while moving it in the front-rear direction, that is, the so-called plug operation, will be described below.

[0031] Of the pair of doors 2, the -X side door 2 is connected to the upper part of the belt 32 together with the connecting member 35 via the door hanger 11. In contrast, the +X side door 2 is connected to the lower part of the belt 32 via the door hanger 11. As described above, the belt 32 is stretched across the gear 33 and the pulley 34 that are spaced apart from each other in the front-rear direction, so the upper and lower parts of the belt 32 move in opposite directions to each other in the front-rear direction. Therefore, when the belt 32 moves, the -X side door 2 and connecting member 35 and the +X side door 2 move in opposite directions to each other in the front-rear direction.

[0032] The pair of doors 2 move from the fully closed position shown in FIG. 1 (where the outer surface of the vehicle body side wall and the outer surface of the door 2 are flush) to the fully open position by transmitting the driving force from the driving source 6 to the belt 32, and moving the door hanger 11 and the connecting member 35 connected to the belt 32. Here, the fully open position means a position where the pair of doors 2 open the boarding / alighting door 15 (fully open) and the pair of doors 2 are outside the vehicle. In the example of FIG. 1, the door 2 on the -X side first moves outward in the width direction (specifically, diagonally including the width direction) from the fully closed position, 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 first moves outward in the width direction (specifically, diagonally including the width direction) from the fully closed position, and then moves straight in the +X direction to reach the fully open position.

[0033] Although not shown, the opening / closing path of the guide rail has a straight portion along the front-rear direction and an inclined portion inclined relative to the straight portion. When the door is closed from the fully open position, the rotating body first moves straight along the straight portion, and then moves inward in the width direction (specifically, diagonally including the width direction) along the inclined portion. As described above, since the rotating body is supported by the slide base 4 via the connecting member 35, the belt 32, etc., the slide base 4 moves in the width direction when the rotating body moves along the inclined portion. In addition, since the door leaf 10 is supported by the slide base 4 via the door hanger 11, etc., the door leaf 10 moves in the width direction when the slide base 4 moves in the width direction.

[0034] The door drive system is not limited to the so-called belt system in which the power transmission mechanism 30 is equipped with the above-mentioned belt 32. For example, the door drive system may be the so-called screw system 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 drive system may be the 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 door drive system can be changed according to the required specifications.

[0035] The movement matching mechanism 100 matches the direction and amount of widthwise movement at both front and rear ends of the slide base 4. Note that "the direction and amount of widthwise movement" means the amount of movement on the same side in the width direction. As shown in FIG. 2, the movement matching mechanism 100 includes two fixed shaft members 101 arranged spaced apart in the front-to-rear direction and extending in the height direction, two rotating members 102 that can rotate around the fixed shaft members 101 as the center of rotation, and a rod-shaped shaft 103.

[0036] The following description focuses on the peripheral configuration including one side (-X side) in the front-rear direction of the movement matching mechanism 100. The peripheral configuration including the other side (+X side) in the front-rear direction of the movement matching mechanism 100 is common to the peripheral configuration including the one side (-X side) except for the arrangement positions of the components and the movement direction (rotation direction), so a detailed description will be omitted. FIG. 3 is a perspective view of the periphery including one side (-X side) in the front-rear direction of the moving matching mechanism 100 of the first embodiment. FIG. 4 is a perspective view of the periphery including the other side (+X side) in the front-rear direction of the moving matching mechanism 100 of the first embodiment. FIG. 5 is a top view of the periphery including one side (-X side) in the front-rear direction of the moving matching mechanism 100 of the first embodiment. FIG. 6 is a top view of the periphery including the other side (+X side) in the front-rear direction of the moving matching mechanism 100 of the first embodiment. FIGS. 3 to 6 each show the moving matching mechanism 100 in a state where the door is located at the fully closed position. In each drawing, the symbol A is added to the end of the components on one side (-X side) in the front-rear direction of the moving matching mechanism 100, and the symbol B is added to the end of the components on the other side (+X side), but when there is no particular need to distinguish them, the symbols at the end will be omitted in the description.

[0037] 1, the fixed shaft member 101 is provided on a fixed base 3. The fixed shaft member 101 is connected to the fixed base 3 via a fixed member 104 extending in the front-rear direction. The fixed member 104 is attached to the fixed base 3 by a plurality of bolts 105 (for example, two in this embodiment) arranged in the front-rear direction with the fixed shaft member 101 in between.

[0038] 5, the rotating member 102 is L-shaped when viewed in the height direction. The rotating member 102 includes an arm base 110 arranged coaxially with the fixed shaft member 101, a contact arm 111 that contacts the slide base 4, and a transmission arm 113 having a transmission shaft member 112 arranged spaced apart from the fixed shaft member 101. For example, the arm base 110, the contact arm 111, and the transmission arm 113 may be integrally formed from the same member.

[0039] The arm base 110 is cylindrical and extends in the height direction along the fixed shaft member 101. As shown in Fig. 3, the arm base 110 is disposed below the fixed member 104. The arm base 110 surrounds the periphery of the fixed shaft member 101. For example, a bearing that rotatably supports the fixed shaft member 101 may be provided between the inner periphery of the arm base 110 and the fixed shaft member 101.

[0040] The contact arm 111 extends radially outward (outward in a direction perpendicular to the arm base 110) from the lower portion of the arm base 110. As shown in Fig. 5, the contact arm 111 gradually tapers from the arm base 110 radially outward when viewed in the height direction.

[0041] The slide base 4 is provided with a guide member 120 that guides the movement of the contact arm 111 in the front-rear direction. The guide member 120 has a rectangular shape extending in the width direction when viewed in the height direction. The +Y side end of the guide member 120 is attached to the upper end of the slide base 4 by multiple bolts 121 (for example, two in this embodiment) aligned in the front-rear direction.

[0042] A long hole 122 that opens in the height direction and extends along the front-rear direction is formed on the -Y side of the guide member 120. The long hole 122 has an elliptical shape when viewed from the height direction. The guide member 120 has a rail 123 that extends along the front-rear direction. The rail 123 constitutes a pair of inner wall surfaces in the width direction of the long hole 122. The pair of inner wall surfaces extend parallel to each other in the front-rear direction when viewed from the height direction. The length of the inner wall surface in the front-rear direction is greater than the outer diameter of the rotating body 115.

[0043] The guide member 120 is not limited to having the long hole 122 formed therein. For example, the guide member 120 may have a groove extending along the front-rear direction. The long hole 122 is not limited to having an elliptical shape when viewed from the height direction. For example, the long hole 122 may have a rectangular shape when viewed from the height direction. For example, the shape of the holes and grooves formed in the guide member 120 can be changed according to required specifications.

[0044] The contact arm 111 includes a rotor 115 that rolls along a rail 123. As shown in Fig. 3, the rotor 115 is disposed below the contact arm 111. The rotor 115 is connected to the tip of the contact arm 111 (the part farthest from the arm base 110) so as to be rotatable about an axis extending in the height direction. The shape of the rotor 115 is circular when viewed from the height direction.

[0045] The transmission arm 113 extends radially outward from a portion different from the portion from which the contact arm 111 extends at the lower portion of the arm base 110. As shown in Fig. 5, the transmission arm 113 gradually tapers radially outward from the arm base 110 when viewed in the height direction.

[0046] The contact arm 111 and the transmission arm 113 extend in directions perpendicular to each other when viewed from the height direction. For example, the angle Aa formed by the contact arm 111 and the transmission arm 113 when viewed from the height direction is approximately 90 degrees. Here, the angle Aa means the angle formed by an imaginary line passing through the axis of the fixed shaft member 101 and the center of rotation of the rotating body 115 (the center of the tip of the contact arm 111) and an imaginary line passing through the axis of the fixed shaft member 101 and the axis of the transmission shaft member 112 when viewed from the height direction.

[0047] The transmission shaft member 112 extends in a direction (height direction) parallel to the fixed shaft member 101. The lower end of the transmission shaft member 112 is connected to the tip end (the portion farthest from the arm base portion 110) of the transmission arm 113 (see FIG. 4).

[0048] As shown in Fig. 2, both ends of the shaft 103 in the front-rear direction are connected to the transmission shaft members 112 (see Figs. 5 and 6) of the two rotating members 102. The shaft 103 extends linearly so as to connect between the transmission shaft members 112 of the two rotating members 102. Both ends of the shaft 103 are rotatable around the transmission shaft members 112 as the center of rotation. For example, the shaft 103 may be provided with an adjustment member 116 (see Fig. 5) that can adjust the distance between the transmission shaft members 112 of the two rotating members 102.

[0049] The shaft 103 has enough rigidity to transmit the rotational force of one of the two rotating members 102 to the other. For example, the shaft 103 may be a metal shaft member. For example, the shaft 103 is preferably a member that can be regarded as a rigid body. Note that the shaft 103 may not be a member that does not deform no matter what force is applied to it, but may be a member that deforms slightly when a certain force or more is applied to it.

[0050] The fixed shaft members 101 of the two rotating members 102 are disposed at the same widthwise position when viewed from the height direction (see FIGS. 5 and 6). Rotating body 115 of each of two rotating members 102 is disposed on the -Y side of fixed shaft member 101 as viewed in the height direction when the door is in the fully closed position (see Figs. 5 and 6). Rotating body 115 of one rotating member 102A is disposed on the +X side of fixed shaft member 101 as viewed in the height direction when the door is in the fully closed position (see Fig. 5). In contrast, rotating body 115 of the other rotating member 102B is disposed on the -X side of fixed shaft member 101 as viewed in the height direction when the door is in the fully closed position (see Fig. 6). When the door is in the fully closed position, the transmission shaft member 112 of one rotating member 102A is disposed on the +Y side of the fixed shaft member 101 as viewed in the height direction (see FIG. 5). In contrast, when the door is in the fully closed position, the transmission shaft member 112 of the other rotating member 102B is disposed on the -Y side of the fixed shaft member 101 as viewed in the height direction (see FIG. 6).

[0051] Fig. 7 is an explanatory diagram of the operation of the movement matching mechanism 100 of the first embodiment. Fig. 7 shows a top view of the movement matching mechanism 100 of the embodiment. Fig. 7 shows an example in which the slide base 4 moves outward in the width direction (plug-out direction) in accordance with the opening operation of the door from a state in which the door is positioned at a fully closed position (an example of moving in the direction of the arrow Wd in Fig. 7). For example, Fig. 7 corresponds to a state in which the door moves outward in the width direction so as to go outside the vehicle from a state in which the door is positioned at a fully closed position.

[0052] 7, when the slide base 4 moves outward in the width direction, the rotating bodies 115 of the two rotating members 102 are pushed toward the +Y side by the inner wall surface on the -Y side of the rail 123 of the guide member 120. Then, one rotating member 102A rotates counterclockwise (in the direction of the arrow Ra) around the fixed shaft member 101A as the center of rotation in a top view, and the other rotating member 102B rotates clockwise (in the direction of the arrow Rb) around the fixed shaft member 101B as the center of rotation in a top view. That is, one rotating member 102A and the other rotating member 102B rotate in opposite directions to each other around the fixed shaft members 101A and 101B as the centers of rotation.

[0053] Specifically, when the slide base 4 moves outward in the width direction, a case will be described in which the rotating body 115 of one rotating member 102A is first pushed toward the +Y side by the inner wall surface on the -Y side of the rail 123 of the guide member 120A. In this case, the one rotating member 102A rotates counterclockwise (in the direction of the arrow Ra) around the fixed shaft member 101A as the center of rotation in a top view. Then, the transmission shaft member 112 of the one rotating member 102A pulls the shaft 103 toward the -X side. As a result, the transmission shaft member 112 of the other rotating member 102B is pulled toward the -X side by the shaft 103. Then, the other rotating member 102B rotates clockwise (in the direction of the arrow Rb) around the fixed shaft member 101B as the center of rotation in a top view. In other words, if the rotating body 115 of one rotating member 102A is pushed toward the +Y side before the rotating body 115 of the other rotating member 102B, the one rotating member 102A and the other rotating member 102B rotate in opposite directions with their respective fixed shaft members 101A, 101B as their rotation centers.

[0054] When the slide base 4 moves outward in the width direction as viewed from another side, a case will be described in which the rotating body 115 of the other rotating member 102B is first pushed toward the +Y side by the inner wall surface on the -Y side of the rail 123 of the guide member 120B. In this case, the other rotating member 102B rotates clockwise (in the direction of the arrow Rb) around the fixed shaft member 101B as the center of rotation as viewed from above. Then, the transmission shaft member 112 of the other rotating member 102B pushes the shaft 103 toward the -X side. As a result, the transmission shaft member 112 of one rotating member 102A is pushed toward the -X side by the shaft 103. Then, the one rotating member 102A rotates counterclockwise (in the direction of the arrow Ra) around the fixed shaft member 101A as the center of rotation as viewed from above. In other words, if the rotating body 115 of the other rotating member 102B is pushed toward the +Y side before the rotating body 115 of one rotating member 102A, the one rotating member 102A and the other rotating member 102B rotate in opposite directions with their respective fixed shaft members 101A, 101B as their rotation centers.

[0055] Next, as an example of a plug operation opposite to the example in Figure 7, we will explain an example in which the slide base 4 moves inward in the width direction (plug-in direction) in accordance with the closing operation of the door from a state in which the door is in the fully open position (an example in which it moves in the opposite direction to the direction of the arrow Wd in Figure 7).

[0056] When the slide base 4 moves inward in the width direction, the rotating bodies 115 of the two rotating members 102 are pushed toward the -Y side by the inner wall surface on the +Y side of the rail 123 of the guide member 120. Then, one rotating member 102A rotates clockwise (opposite to the direction of arrow Ra in FIG. 7) around the fixed shaft member 101A as a rotation center in top view, and the other rotating member 102B rotates counterclockwise (opposite to the direction of arrow Rb in FIG. 7) around the fixed shaft member 101B as a rotation center in top view. That is, one rotating member 102A and the other rotating member 102B rotate in opposite directions to each other around the fixed shaft members 101A and 101B as a rotation center.

[0057] Specifically, when the slide base 4 moves inward in the width direction, a case will be described in which the rotating body 115 of one rotating member 102A is first pushed toward the -Y side by the inner wall surface on the +Y side of the rail 123 of the guide member 120A. In this case, the one rotating member 102A rotates clockwise (opposite to the direction of the arrow Ra in FIG. 7) around the fixed shaft member 101A as the center of rotation in a top view. Then, the transmission shaft member 112 of the one rotating member 102A pushes the shaft 103 toward the +X side. As a result, the transmission shaft member 112 of the other rotating member 102B is pushed toward the +X side by the shaft 103. Then, the other rotating member 102B rotates counterclockwise (opposite to the direction of the arrow Rb in FIG. 7) around the fixed shaft member 101B as the center of rotation in a top view. In other words, if the rotating body 115 of one rotating member 102A is pushed toward the -Y side before the rotating body 115 of the other rotating member 102B, the one rotating member 102A and the other rotating member 102B rotate in opposite directions with their respective fixed shaft members 101A, 101B as their rotation centers.

[0058] When the slide base 4 moves inward in the width direction as viewed from another side, a case will be described in which the rotating body 115 of the other rotating member 102B is first pushed toward the -Y side by the inner wall surface on the +Y side of the rail 123 of the guide member 120B. In this case, the other rotating member 102B rotates counterclockwise (opposite to the direction of the arrow Rb in FIG. 7) around the fixed shaft member 101B as the center of rotation as viewed from above. Then, the transmission shaft member 112 of the other rotating member 102B pulls the shaft 103 toward the +X side. As a result, the transmission shaft member 112 of one rotating member 102A is pulled toward the +X side by the shaft 103. Then, the one rotating member 102A rotates clockwise (opposite to the direction of the arrow Ra in FIG. 7) around the fixed shaft member 101A as the center of rotation as viewed from above. In other words, if the rotating body 115 of the other rotating member 102B is pushed toward the -Y side before the rotating body 115 of one rotating member 102A, the one rotating member 102A and the other rotating member 102B rotate in opposite directions with their respective fixed shaft members 101A, 101B as rotation centers.

[0059] Thus, in this embodiment, when the slide base 4 moves in the width direction during the plug operation (both plug-out and plug-in operations), one rotating member 102A and the other rotating member 102B rotate in opposite directions with their respective fixed shaft members 101A, 101B as the rotation center.

[0060] Fig. 8 is an explanatory diagram of the effect of the movement matching mechanism 100 of the first embodiment. Fig. 9 is an explanatory diagram of a comparative example. Figs. 8 and 9 show an example in which the slide base moves outward in the width direction (plug-out direction) in accordance with the opening operation of the door from a state in which the door is positioned at the fully closed position. Note that Fig. 9 also shows the movement matching mechanism 100 of the embodiment.

[0061] As shown in Fig. 9, if a delay Dy (stroke delay) occurs in the movement of the -X side end of the slide base 4 in the plug-out direction compared to the +X side end, the slide base 4 will tilt by the angle Ad in Fig. 9. If the slide base 4 tilts in the front-rear direction when it moves in the width direction during plug operation in this way, there is a possibility that the slide base 4 and the rail base 9 (see Fig. 1) will become stuck. Here, sticking means that a movable part such as a slide part becomes stuck and its smooth movement is hindered.

[0062] In contrast, in the embodiment, when the slide base 4 moves in the width direction in the plugging operation as described above, the one rotating member 102A and the other rotating member 102B rotate in opposite directions with the fixed shaft members 101A and 101B as the rotation center, so that the direction and amount of the widthwise movement at both ends of the front-rear direction of the slide base 4 match each other, as shown in Fig. 8. According to the embodiment, the operation delay Md shown in Fig. 9 is corrected, so that the inclination angle Ad of the slide base 4 can be set to zero. Thus, in the embodiment, when the slide base 4 moves in the width direction in the plugging operation, the slide base 4 is prevented from inclining with respect to the front-rear direction, and does not become stuck.

[0063] As described above, the plug door device 1 according to this embodiment includes the fixed base 3 fixed to the vehicle body, the slide base 4 to which the vehicle door 2 is attached and which slides in the width direction of the vehicle relative to the fixed base 3 by the driving force from the drive source 6, and a movement matching mechanism 100 for matching the direction and amount of widthwise movement at both ends in the front-rear direction of the vehicle on the slide base 4. The movement matching mechanism 100 includes two fixed shaft members 101 provided on the fixed base 3 and arranged spaced apart in the front-rear direction and extending in the height direction of the vehicle, a contact arm 111 that contacts the slide base 4, and a transmission arm 113 having a transmission shaft member 112 arranged spaced apart from the fixed shaft member 101, two rotating members 102 in which the contact arm 111 and the transmission arm 113 rotate together with the fixed shaft member 101 as the rotation center, and a shaft 103 whose both ends in the front-rear direction are connected to the transmission shaft member 112 of each of the two rotating members 102. The slide base is provided with a guide member 120 that guides the movement of the contact arm 111 in the front-rear direction. The guide member 120 has a rail 123 that extends along the front-rear direction. The contact arm 111 is equipped with a rotor 115 that rolls along the rail 123. The contact arm 111 and the transmission arm 113 extend in directions perpendicular to each other when viewed in the height direction.

[0064] According to this configuration, the rotation member 102 rotates around the fixed shaft member 101 extending in the height direction as the center of rotation by the movement of the slide base 4 in the width direction, so that no space is required in the height direction to allow the rotation of the rotation member 102. Therefore, the size in the height direction can be reduced. In addition, by fixing each of the two fixed shaft members 101 to the fixed base 3, the two fixed shaft members 101 can be fixed to fixed positions on the vehicle body via the fixed base 3. In addition, the slide base 4 is provided with a guide member 120 that guides the movement of the contact arm 111 in the forward and backward directions. By guiding the movement of the contact arm 111 in the forward and backward directions by the guide member 120, the movement of the slide base 4 in the width direction can be converted into rotation of the rotating member 102. In addition, the guide member 120 has a rail 123 extending along the front-to-rear direction, and the contact arm 111 is equipped with a rotating body 115 that rolls along the rail 123, so that the friction between the contact arm 111 and the rail 123 is reduced by the rotating body 115, thereby enabling the widthwise movement of the slide base 4 to be smoothly converted into rotation of the rotating member 102. In addition, since both ends of the shaft 103 in the front-to-rear direction are connected to the transmission shaft members 112 of each of the two rotating members 102, the shaft 103 can be preferably positioned between the transmission shaft members 112 of each of the two rotating members 102 and the range of movement of the shaft 103 can be made wider, compared to when the shaft 103 is connected midway. In addition, since the contact arm 111 and the transmission arm 113 extend in directions perpendicular to each other when viewed from the height direction, when a straight line passing through the axis of the fixed shaft member 101 and the center of the contact portion of the contact arm 111 is taken as a virtual line when viewed from the height direction, the distance between the virtual line and the axis of the transmission shaft member 112 is maximized when viewed from the height direction, thereby maximizing the amount of movement to be aligned. In addition, when the slide base 4 moves in the width direction and the rotating member 102 rotates around the fixed shaft member 101 extending in the height direction as the center of rotation, tension or compression is applied to the shaft 103, thereby preventing twisting of the shaft 103.

[0065] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0066] In the above-described embodiment, an example has been described in which each of the two fixed shaft members 101 is fixed to the fixed base 3 and each of the two rotating members 102 has a contact arm 111 that contacts the slide base 4, but this is not limiting. For example, each of the two fixed shaft members 101 may be fixed to the slide base 4 and each of the two rotating members 102 may have a contact arm 111 that contacts the fixed base 3. For example, the installation mode of the two fixed shaft members 101 and the two rotating members 102 can be changed according to required specifications.

[0067] In the above-described embodiment, an example has been described in which the slide base 4 is provided with the guide member 120 that guides the movement of the contact arm 111 in the front-rear direction (see FIG. 3), but this is not limiting. For example, the slide base 4 does not necessarily have to be provided with the guide member 120. For example, the contact arm 111 may be in direct contact with the slide base 4.

[0068] In the above-described embodiment, an example has been described in which the guide member 120 has the rail 123 extending along the front-rear direction, and the contact arm 111 has the rotating body 115 that rolls along the rail 123 (see FIG. 5 ), but this is not limiting. For example, the contact arm 111 does not have to have the rotating body 115. For example, the contact arm 111 may have a pin fixed to the tip of the contact arm 111 so as not to rotate. For example, the configuration of the contact arm 111 can be changed according to required specifications.

[0069] In the above-described embodiment, an example (see FIG. 5) in which the contact arm 111 and the transmission arm 113 extend in directions perpendicular to each other as viewed in the height direction has been described, but the present invention is not limited thereto. For example, the contact arm 111 and the transmission arm 113 may extend in directions that cross each other obliquely as viewed in the height direction. For example, the angle Aa formed by the contact arm 111 and the transmission arm 113 as viewed in the height direction may be 10 degrees or more and 80 degrees or less, or 100 degrees or more and 170 degrees or less. For example, the angle Aa formed by the contact arm 111 and the transmission arm 113 as viewed in the height direction may be within a range not exceeding 180 degrees. For example, the angle Aa formed by the contact arm 111 and the transmission arm 113 as viewed in the height direction can be changed according to the required specifications within a range in which the above-mentioned effects can be obtained by the movement matching mechanism 100.

[0070] In the above-mentioned embodiment, the movement matching mechanism 100 is provided on the fixed base 3, and includes two fixed shaft members 101 arranged at a distance from each other in the front-rear direction and extending in the height direction of the vehicle, a contact arm 111 that contacts the slide base 4, and a transmission arm 113 having a transmission shaft member 112 arranged at a distance from the fixed shaft member 101, and the contact arm 111 and the transmission arm 113 rotate together with the fixed shaft member 101 as a rotation center, and a shaft 103 that extends so as to span the transmission shaft members 112 of each of the two rotation members 102 and has both ends in the front-rear direction connected to the transmission shaft members 112 of each of the two rotation members 102, but is not limited thereto. For example, the movement matching mechanism may be configured by connecting two swing arms arranged at a distance from each other in the front-rear direction with a belt, a link, a gear, or the like. For example, a plug door device may include a fixed base fixed to the body of a vehicle, a sliding base to which the vehicle door is attached and which slides in the width direction of the vehicle relative to the fixed base by a driving force from a driving source, and a movement matching mechanism for matching the direction and amount of widthwise movement of the sliding base at both fore-and-aft ends of the vehicle using a rotational force that rotates within a plane perpendicular to the height direction of the vehicle. According to this configuration, the movement coincidence mechanism uses a rotational force that rotates in a plane perpendicular to the height direction, so no space is required in the height direction to use the rotational force, and therefore the device can be made compact in the height direction.

[0071] <Second embodiment> In the above-mentioned first embodiment, an example was described in which the plug door device does not have a swing arm mechanism, but this is not limited to this. The second embodiment differs from the first embodiment in that the plug door device has a swing arm mechanism, and components of the movement matching mechanism are provided on the swing arm mechanism. In the second embodiment, the same components as those in the above-mentioned first embodiment are given the same reference numerals, and detailed descriptions thereof will be omitted.

[0072] FIG. 10 is a bottom view of the plug door device of the second embodiment. As shown in Fig. 10, the plug door device 2001 includes a pair of doors 2, a fixed base 3, a slide base 4, a power transmission mechanism 230, a swing arm mechanism 250, and a movement matching mechanism 200. Fig. 10 shows the movement matching mechanism 200 in a state where the doors 2 are located in a fully closed position.

[0073] The power transmission mechanism 230 includes a power conversion mechanism 231 that converts the direction of a driving force from a driving source (not shown), and an endless belt 232 that extends along the front-rear direction. The power conversion mechanism 231 converts rotation about the output shaft of the motor into rotation about an axis along the height direction. The power conversion mechanism 231 includes a gear 233 that rotates about an axis along the height direction. A pulley 234 is provided at a position spaced from the gear 233 in the front-rear direction, the pulley 234 being rotatable about an axis parallel to the rotation axis of the gear 233 (axis along the height direction).

[0074] The belt 232 is stretched across a gear 233 and a pulley 234. The belt 232 moves (circulates) around the gear 233 and the pulley 234 in conjunction with the rotation of the gear 233. The door hanger 11 is connected to the belt 232. The door hanger 11 moves in the front-rear direction together with the movement of the belt 232. An example of the operation of moving the door in the width direction while moving it in the front-rear direction, that is, the so-called plug operation, will be described below.

[0075] Of the pair of doors 2, the -X side door 2 is connected to the -Y side portion of belt 232 via door hanger 11. In contrast, the +X side door 2 is connected to the +Y side portion of belt 232 via door hanger 11. As described above, belt 232 is stretched across gear 233 and pulley 234 that are spaced apart from each other in the front-rear direction, so the -Y side portion and the +Y side portion of belt 232 move in opposite directions to each other in the front-rear direction. Therefore, when belt 232 moves, the -X side door 2 and the +X side door 2 move in opposite directions to each other in the front-rear direction.

[0076] The pair of doors 2 move from the fully closed position shown in Fig. 10 (where the outer surface of the vehicle body side wall and the outer surface of the door 2 are flush) to the fully open position as a result of a driving force from a driving source (not shown) being transmitted to the belt 232, and the door hanger 11 connected to the belt 232 moving. In the example of Fig. 10, the door 2 on the -X side first moves outward in the width direction (specifically, diagonally including the width direction) from the fully closed position, 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 first moves outward in the width direction (specifically, diagonally including the width direction) from the fully closed position, and then moves straight in the +X direction to reach the fully open position.

[0077] Fig. 11 is a front view of the vicinity including the swing arm mechanism 250 of the second embodiment. Fig. 12 is a perspective view of the vicinity including the upper part of the swing arm mechanism 250 of the second embodiment. Fig. 13 is a perspective view of the vicinity including the lower part of the swing arm mechanism 250 of the second embodiment. Fig. 14 is a perspective view of one side in the front-rear direction of the swing arm mechanism 250 of the second embodiment. In each drawing, the symbol A is added to the end of the components on one side (-X side) in the front-rear direction of the swing arm mechanism 250, and the symbol B is added to the end of the components on the other side (+X side), but when there is no particular need to distinguish between them, the symbols at the end will be omitted in the description.

[0078] As shown in FIG. 11, the swing arm mechanism 250 includes two pillars 251 that are mounted on the vehicle body and spaced apart in the fore-and-aft direction and extend in the vertical direction, two upper arms 252 that support an upper portion of the door 2 and rotate integrally with the pillars 251 as the center of rotation, and two lower arms 253 that support a lower portion of the door 2 and rotate integrally with the pillars 251 as the center of rotation.

[0079] The pillar 251 is an axial member that extends linearly in the height direction. The pillar 251 is disposed outboard of the entrance in the front-rear direction. As shown in FIG. 12, the upper end of the pillar 251 is attached to the upper part of the vehicle body via an upper bracket 258. As shown in FIG. 13, the lower end of the pillar 251 is attached to the lower part of the vehicle body via a lower bracket 259. The pillar 251 is supported by the brackets 258, 259 so as to be rotatable about an axis that extends in the height direction.

[0080] 14, the upper arm 252 is attached in a non-rotatable state to the upper part of the pillar 251. The upper arm 252 includes an arm base 210 arranged coaxially with the pillar 251, and a contact arm 211 arranged on the upper end side of the door 2. For example, the arm base 210 and the contact arm 211 may be integrally formed from the same member.

[0081] The arm base 210 is annular and coaxial with the pillar 251. The arm base 210 is disposed in the vicinity of a lower portion of the upper bracket 258 that is connected to the pillar 251. The arm base 210 surrounds the periphery of the pillar 251. For example, a bearing that rotatably supports the pillar 251 may be provided between the inner periphery of the arm base 210 and the pillar 251.

[0082] The contact arm 211 extends radially outward (outward in a direction perpendicular to the central axis of the arm base 210) from the arm base 210. The contact arm 211 includes a first extension portion 211a extending radially outward from the arm base 210 with a uniform width, a second extension portion 211b extending upward from the tip of the first extension portion 211a, and a third extension portion 211c gradually tapering from the tip of the second extension portion 211b toward the radially outward (specifically, toward the radially outward along an extension line of the first extension portion 211a when viewed from the height direction).

[0083] The lower arm 253 is attached in a non-rotatable manner to the lower part of the pillar 251. The lower arm 253 is connected to a lower bracket 259 above and in the vicinity of the part to which the pillar 251 is connected.

[0084] The lower arm 253 extends radially outward (outward in a direction perpendicular to the central axis of the pillar 251) from the pillar 251. The lower arm 253 includes a first arm portion 253a extending radially outward from the pillar 251, a second arm portion 253b extending downward from a tip of the first arm portion 253a, a third arm portion 253c extending radially outward from a tip of the second arm portion 253b (specifically, radially outward along an extension line of the first arm portion 253a when viewed from the height direction), and a fourth arm portion 253d extending obliquely radially outward from a tip of the third arm portion 253c (specifically, radially outward along an extension line of the third arm portion 253c when viewed from the height direction).

[0085] As shown in Fig. 13, a lower guide rail 260 that guides the movement of the lower arm 253 in the front-rear direction is provided at the lower end of the door 2. The lower guide rail 260 extends in the front-rear direction. The lower guide rail 260 is formed in a U-shape that opens downward when viewed from the front-rear direction. The lower guide rail 260 includes an outer wall portion 261 fixed to the door 2, an inner wall portion 262 disposed on the inner side of the outer wall portion 261 in the width direction, and an upper wall portion 263 that connects an upper end of the outer wall portion 261 and an upper end of the inner wall portion 262.

[0086] The lower arm 253 includes a roller 255 that rolls along the lower guide rail 260. The roller 255 is attached to the tip of the fourth arm portion 253d of the lower arm 253. The roller 255 is attached to the tip of the fourth arm portion 253d in a state in which it can rotate about an axis extending in the height direction. The roller 255 is disposed above the tip of the fourth arm portion 253d. The roller 255 is disposed between the outer wall portion 261 and the inner wall portion 262 in the width direction.

[0087] The roller 255 moves along the guide surface (the inner wall surface on the +Y side or the inner wall surface on the −Y side) of the lower guide rail 260 in association with the plugging operation of the door 2. For example, when the door 2 moves from the fully closed position outward in the width direction (specifically, diagonally including the width direction), the roller 255 is pushed toward the +Y side by the guide surface (the inner wall surface on the +Y side) of the inner wall portion 262. Then, one lower arm 253A rotates clockwise (in the direction of arrow E1 in FIG. 13) around the pillar 251A as the center of rotation when viewed from below, and the other lower arm 253B rotates counterclockwise (in the direction of arrow E2 in FIG. 13) around the pillar 251B as the center of rotation when viewed from below. Thereafter, when the door 2 moves straight outward in the front-rear direction, the rollers 255 of each of the two lower arms 253 roll along the guide surfaces of the lower guide rails 260. As a result, the door 2 moves outward in the front-rear direction relative to the rollers 255 and the lower arms 253, and reaches the fully open position.

[0088] For example, when the door 2 moves straight inward in the front-rear direction from the fully open position, the rollers 255 of the two lower arms 253 roll along the guide surface of the lower guide rail 260. Thereafter, when the door 2 moves inward in the width direction (specifically, diagonally including the width direction), the rollers 255 are pushed toward the -Y side by the guide surface (the inner wall surface on the -Y side) of the outer wall portion 261. Then, one lower arm 253A rotates counterclockwise (opposite to the direction of the arrow E1 in FIG. 13) around the pillar 251A as a rotation center in a bottom view, and the other lower arm 253B rotates clockwise (opposite to the direction of the arrow E2 in FIG. 13) around the pillar 251B as a rotation center in a bottom view. As a result, the door 2 moves toward the -Y side with the rotation of the lower arm 253, and reaches the fully closed position.

[0089] As shown in FIG. 10, the movement matching mechanism 200 includes two pillars 251 as two fixed shaft members, two rotating members 202 including two upper arms 252, and a shaft 203 whose both ends in the forward / rearward direction are connected to each of the two pillars 251 via transmission shaft members 212 provided on each of the two rotating members 202.

[0090] The following description focuses on the peripheral configuration including one side (-X side) in the front-rear direction of the movement matching mechanism 200. The peripheral configuration including the other side (+X side) in the front-rear direction of the movement matching mechanism 200 is common to the peripheral configuration including the one side (-X side) except for the arrangement positions of the components and the movement direction (rotation direction), so a detailed description will be omitted. Fig. 15 is a bottom view of the periphery including one side in the front-rear direction (-X side) of the moving matching mechanism 200 of the second embodiment. Fig. 16 is a bottom view of the periphery including the other side in the front-rear direction (+X side) of the moving matching mechanism 200 of the second embodiment. Figs. 15 and 16 each show the moving matching mechanism 200 in a state where the door is located in the fully closed position. In each drawing, the components on one side in the front-rear direction (-X side) of the moving matching mechanism 200 are suffixed with the symbol A, and the components on the other side (+X side) are suffixed with the symbol B, but when there is no particular need to distinguish between them, the suffix symbols will be omitted in the description.

[0091] 15, the rotating member 202 is L-shaped when viewed in the height direction. The rotating member 202 includes the above-mentioned upper arm 252 (specifically, a configuration including an arm base 210 arranged coaxially with the pillar 251 and a contact arm 211 arranged on the upper end side of the door 2) and a transmission arm 213 having a transmission shaft member 212 arranged away from the rotation center of the pillar 251. For example, the upper arm 252 and the transmission arm 213 may be integrally formed from the same member.

[0092] The slide base 4 is provided with a guide member 220 that guides the movement of the contact arm 211 in the front-rear direction. The guide member 220 has a rectangular shape extending in the front-rear direction when viewed from the height direction. The +Y side end of the guide member 220 is attached to the lower end of the slide base 4 by multiple bolts 121 (for example, three in this embodiment) aligned in the front-rear direction.

[0093] The guide member 220 has a long hole 222 that opens in the height direction and extends along the front-rear direction. The guide member 220 has a rail 223 that extends along the front-rear direction. The rail 223 constitutes a pair of inner wall surfaces in the width direction of the long hole 222. The pair of inner wall surfaces extend parallel to each other in the front-rear direction when viewed from the height direction. The length of the inner wall surfaces in the front-rear direction is greater than the outer diameter of the rotating body 215.

[0094] The contact arm 211 includes a rotor 215 that rolls along the rail 223. The rotor 215 is disposed above the contact arm 211. The rotor 215 is rotatably connected to the tip end (the portion furthest from the arm base 210) of the third extension part 211c of the contact arm 211 about an axis extending in the height direction. The rotor 215 has a circular shape when viewed from the height direction.

[0095] The transmission arm 213 extends radially outward from a portion of the arm base 210 different from the portion from which the contact arm 211 extends. When viewed in the height direction, the transmission arm 213 gradually tapers from the arm base 210 radially outward and then bulges outward to form a circular shape. The circular bulging portion of the transmission arm 213 is disposed at a position overlapping with annular portions provided at both ends of the shaft 203 when viewed in the height direction.

[0096] The contact arm 211 and the transmission arm 213 extend in directions perpendicular to each other when viewed from the height direction. For example, the angle Am between the contact arm 211 and the transmission arm 213 when viewed from the height direction is about 90 degrees. Here, the angle Am means the angle between an imaginary line passing through the rotation center of the pillar 251 and the rotation center of the rotating body 215 (the center of the tip of the contact arm 211) and an imaginary line passing through the rotation center of the pillar 251 and the axis of the transmission shaft member 212 when viewed from the height direction.

[0097] The transmission shaft member 212 extends in a direction (height direction) parallel to the pillar 251. A lower end of the transmission shaft member 212 is connected to a tip end (a portion furthest from the arm base portion 210) of the transmission arm 213. The transmission shaft member 212 is provided at a position overlapping with the center of a circular bulge portion of the transmission arm 213 when viewed in the height direction.

[0098] As shown in Fig. 10, both ends of the shaft 203 in the front-rear direction are connected to the transmission shaft members 212 (see Figs. 15 and 16) of the two rotating members 202. The shaft 203 extends linearly so as to span the transmission shaft members 212 of the two rotating members 202. Both ends of the shaft 203 are rotatable around the transmission shaft members 212 as the center of rotation. For example, the shaft 203 may be provided with an adjustment member capable of adjusting the distance between the transmission shaft members 212 of the two rotating members 202.

[0099] The shaft 203 has enough rigidity to sufficiently transmit the rotational force of one of the two rotating members 202 to the other. For example, the shaft 203 may be a metal shaft member. For example, the shaft 203 is preferably a member that can be regarded as a rigid body. Note that the shaft 203 may not be a member that does not deform no matter what force is applied to it, but may be a member that deforms somewhat when a certain force or more is applied to it.

[0100] The two pillars 251 are disposed at the same widthwise position as each other when viewed in the height direction. Rotating body 215 of each of two rotating members 202 is disposed inside pillar 251 in the front-rear direction when viewed from the height direction (see Figs. 15 and 16). Rotating body 215 of one rotating member 202A is disposed on the +X side of one pillar 251A when viewed from the height direction when the door is in the fully closed position (see Fig. 15). In contrast, rotating body 215 of the other rotating member 202B is disposed on the -X side of the other pillar 251B when viewed from the height direction when the door is in the fully closed position (see Fig. 16). The transmission shaft members 212 of the two rotating members 202 are disposed at different widthwise positions as viewed in the height direction (see Figs. 15 and 16). The transmission shaft member 212 of one rotating member 202A is disposed on the -Y side of the pillar 251 as viewed in the height direction when the door is in the fully closed position (see Fig. 15). In contrast, the transmission shaft member 212 of the other rotating member 202B is disposed on the +Y side of the pillar 251 as viewed in the height direction when the door is in the fully closed position (see Fig. 16).

[0101] FIG. 17 is an explanatory diagram of the operation of the movement matching mechanism 200 of the second embodiment. FIG. 17 shows a bottom view of the periphery including the movement matching mechanism 200 of the second embodiment. FIG. 17 shows the side (the side moving in the direction of the arrow Wd in FIG. 17) where the slide base 4 moves outward in the width direction (plug-out direction) in accordance with the door opening operation from a state where the door is positioned at the fully closed position. For example, FIG. 17 corresponds to a state where the door moves outward in the width direction so as to go out of the vehicle from a state where the door is positioned at the fully closed position. Note that the door, the power transmission mechanism, and the like are not shown in FIG. 17.

[0102] 17, when the door is opened, the rotating bodies 215 of the two rotating members 202 are pushed toward the +Y side by the rails 223 on the -Y side of the guide member 220. Then, the rotating member 202A rotates clockwise (in the direction of the arrow R1) around the pillar 251A as a rotation center in a bottom view, and the other rotating member 202B rotates counterclockwise (in the direction of the arrow R2) around the pillar 251B as a rotation center in a bottom view. That is, the rotating member 202A and the other rotating member 202B rotate in opposite directions to each other around the pillars 251A and 251B as a rotation center.

[0103] Specifically, when the door is opened, a case will be described in which the rotating body 215 of one rotating member 202A is first pushed toward the +Y side by the rail 223 on the -Y side of the guide member 220A. In this case, the one rotating member 202A rotates clockwise (in the direction of the arrow R1) around the pillar 251A as the center of rotation when viewed from below. Then, the transmission shaft member 212 of the one rotating member 202A pushes the shaft 203 toward the +X side. As a result, the transmission shaft member 212 of the other rotating member 202B is pushed toward the +X side by the shaft 203. Then, the other rotating member 202B rotates counterclockwise (in the direction of the arrow R2) around the pillar 251B as the center of rotation when viewed from below. In other words, when the rotating body 215 of one rotating member 202A is pushed toward the +Y side before the guide roller of the other rotating member 202B, the one rotating member 202A and the other rotating member 202B rotate in opposite directions with their respective pillars 251A, 251B as their rotation centers.

[0104] When viewed from another side, a case will be described in which, when the door is opened, the rotating body 215 of the other rotating member 202B is first pushed toward the +Y side by the rail 223 on the -Y side of the guide member 220B. In this case, the other rotating member 202B rotates counterclockwise (in the direction of the arrow R2) around the pillar 251B as the center of rotation when viewed from below. Then, the transmission shaft member 212 of the other rotating member 202B pulls the shaft 203 toward the +X side. As a result, the transmission shaft member 212 of one rotating member 202A is pulled toward the +X side by the shaft 203. Then, the one rotating member 202A rotates clockwise (in the direction of the arrow R1) around the pillar 251A as the center of rotation when viewed from below. In other words, if the rotating body 215 of the other rotating member 202B is pushed toward the +Y side before the rotating body 215 of one rotating member 202A, the one rotating member 202A and the other rotating member 202B rotate in opposite directions with each pillar 251A, 251B as the rotation center.

[0105] Next, as an example of a plug operation opposite to the example in Figure 17, we will explain the side in which the slide base 4 moves inward in the width direction (plug-in direction) in accordance with the door closing operation from a state in which the door is in the fully open position (the side in which it moves in the opposite direction to the arrow Wd direction in Figure 17).

[0106] When the door is closed, the rotating bodies 215 of the two rotating members 202 are pushed toward the -Y side by the rail 223 on the +Y side of the guide member 220. Then, one rotating member 202A rotates counterclockwise (opposite to the direction of arrow R1 in FIG. 17) around the pillar 251A as the center of rotation when viewed from below, and the other rotating member 202B rotates clockwise (opposite to the direction of arrow R2 in FIG. 17) around the pillar 251B as the center of rotation when viewed from below. That is, one rotating member 202A and the other rotating member 202B rotate in opposite directions to each other around the pillars 251A, 251B as the center of rotation.

[0107] Specifically, when the door is closed, a case will be described in which the rotating body 215 of one rotating member 202A is first pushed toward the -Y side by the rail 223 on the +Y side of the guide member 220A. In this case, the one rotating member 202A rotates counterclockwise (opposite to the direction of the arrow R1 in FIG. 17) around the pillar 251A as the center of rotation when viewed from below. Then, the transmission shaft member 212 of the one rotating member 202A pulls the shaft 203 toward the -X side. As a result, the transmission shaft member 212 of the other rotating member 202B is pulled toward the -X side by the shaft 203. Then, the other rotating member 202B rotates clockwise (opposite to the direction of the arrow R2 in FIG. 17) around the pillar 251B as the center of rotation when viewed from below. In other words, if the rotating body 215 of one rotating member 202A is pushed toward the -Y side before the rotating body 215 of the other rotating member 202B, the one rotating member 202A and the other rotating member 202B rotate in opposite directions with their respective pillars 251A, 251B as their rotation centers.

[0108] When viewed from another side, a case will be described in which, when the door is closed, the rotating body 215 of the other rotating member 202B is first pushed toward the -Y side by the rail 223 on the +Y side of the guide member 220B. In this case, the other rotating member 202B rotates clockwise (opposite to the direction of the arrow R2 in FIG. 17) around the pillar 251B as the center of rotation when viewed from below. Then, the transmission shaft member 212 of the other rotating member 202B pushes the shaft 203 toward the -X side. As a result, the transmission shaft member 212 of one rotating member 202A is pushed toward the -X side by the shaft 203. Then, the one rotating member 202A rotates counterclockwise (opposite to the direction of the arrow R1 in FIG. 17) around the pillar 251A as the center of rotation when viewed from below. In other words, if the rotating body 215 of the other rotating member 202B is pushed toward the -Y side before the rotating body 215 of one rotating member 202A, the one rotating member 202A and the other rotating member 202B rotate in opposite directions with each pillar 251A, 251B as the rotation center.

[0109] In this manner, in the second embodiment, when the door is opened or closed in a plug operation (both plug-out and plug-in operations), one rotating member 202A and the other rotating member 202B rotate in opposite directions about the respective pillars 251A, 251B as rotation centers. Although detailed description is omitted, when the door is opened or closed, the lower arm 253A on one side and the lower arm 253B on the other side rotate in opposite directions about the respective pillars 251A, 251B.

[0110] As described above, the plug door device 2001 according to this embodiment further includes a swing arm mechanism 250 that guides the movement of the door 2 in the width direction and the front-rear direction. The swing arm mechanism 250 is provided on the vehicle body, and includes two pillars 251 that are arranged at a distance in the front-rear direction and extend in the height direction of the vehicle, two upper arms 252 that support the upper part of the door 2 and rotate integrally with the pillar 251 as the rotation center, and two lower arms 253 that support the lower part of the door 2 and rotate integrally with the pillar 251 as the rotation center. The movement matching mechanism 200 includes the two pillars 251 as two fixed shaft members, two rotating members 202 including the two upper arms 252, and a shaft 203 whose both ends in the front-rear direction are connected to each of the two pillars 251 via the transmission shaft members 212 that each of the two rotating members 202 has. The slide base 4 is provided with a guide member 220 that guides the movement of the upper arm 252 in the front-rear direction. The guide member 220 has a rail 223 extending along the front-rear direction. The upper arm 252 has a rotating body 215 that rolls along the rail 223. A lower guide rail 260 that guides the movement of the lower arm 253 in the front-rear direction is provided at the lower end of the door 2. The lower guide rail 260 extends in the front-rear direction. The lower arm 253 has a roller 255 that rolls along the lower guide rail 260.

[0111] According to this configuration, when the door 2 opens and closes, the one rotating member 202A and the other rotating member 202B rotate in opposite directions together with the respective pillars 251 as the rotation center, so that the direction and amount of widthwise movement at both ends in the front-rear direction of the slide base 4 to which the door 2 is attached coincide with each other. Therefore, when the slide base 4 moves in the width direction during the plug operation, the slide base 4 is prevented from tilting in the front-rear direction, and does not become stuck. In addition, the slide base 4 is provided with a guide member 220 that guides the movement of the upper arm 252 in the forward and backward directions. By guiding the movement of the upper arm 252 in the forward and backward directions by the guide member 220, the movement of the slide base 4 in the width direction can be converted into rotation of the rotating member 202. In addition, the guide member 220 has a rail 223 extending along the front-rear direction, and the upper arm 252 is equipped with a rotating body 215 that rolls along the rail 223. As a result, friction between the upper arm 252 and the rail 223 is reduced by the rotating body 215, and the widthwise movement of the slide base 4 can be smoothly converted into rotation of the rotating member 202. In addition, a lower guide rail 260 that guides the movement of the lower arm 253 in the forward and backward directions is provided at the lower end of the door 2. By guiding the movement of the lower arm 253 in the forward and backward directions by the lower guide rail 260, the movement of the door in the width direction can be converted into rotation of the lower arm 253. In addition, the lower guide rail 260 extends in the front-to-rear direction, and the lower arm 253 is equipped with a roller 255 that rolls along the lower guide rail 260. The roller 255 reduces friction between the lower arm 253 and the lower guide rail 260, thereby enabling the movement of the door in the width direction to be smoothly converted into rotation of the lower arm 253. In addition, the upper arm 252 and the lower arm 253 rotate together around the pillar 251 as a rotation center, so that the plug operations of the upper part of the door 2 and the lower part of the door 2 can be synchronized. In addition, since the components of the movement matching mechanism 200 are provided in the swing arm mechanism 250, the existing swing arm mechanism 250 can be utilized, thereby reducing the number of parts compared to the case where new dedicated parts are provided.

[0112] <Third embodiment> In the above-mentioned first embodiment, an example has been described in which the shaft extends in a direction intersecting the front-rear direction when viewed from the vehicle height direction, but this is not limited thereto. In the third embodiment, the arrangement of the shaft is different from that of the first embodiment. In the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0113] Fig. 18 is a bottom view of the periphery including the shaft 303 constituting the movement matching mechanism 300 of the third embodiment. Fig. 19 is a front view of the periphery including the shaft 300 of the third embodiment. Note that in Figs. 18 and 19, the components on one side (-X side) in the front-rear direction of the movement matching mechanism 300 are suffixed with the symbol A, and the components on the other side (+X side) are suffixed with the symbol B, but when there is no particular need to distinguish between them, the suffix symbols will be omitted in the description.

[0114] As shown in FIG. 18, the shaft 303 extends parallel to the front-rear direction when viewed from the height direction. The rotating member 302 is L-shaped when viewed from the height direction. One rotating member 302A and the other rotating member 302B are formed in the same shape when viewed from the height direction. The rotating member 302 includes an arm base 310 arranged coaxially with the fixed shaft member 301, a contact arm 311 that contacts a slide base (not shown), and a transmission arm 313 having a transmission shaft member 312 arranged away from the rotation center of the fixed shaft member 301. A guide member 320 that guides the movement of the contact arm 311 in the front-rear direction is provided on the slide base (not shown).

[0115] The transmission arm 313 extends radially outward from a portion of the arm base 310 that is different from the portion from which the contact arm 311 extends. The transmission arms 313 of the two rotating members 302 extend in the same direction when viewed in the height direction.

[0116] As shown in Fig. 19, the transmission shaft member 312 extends in a direction (height direction) parallel to the fixed shaft member 301. As shown in Fig. 18, the upper end of the transmission shaft member 312 is connected to the tip end (the portion farthest from the arm base portion 310) of the transmission arm 313. The transmission shaft members 312 of the two rotating members 302 are disposed at the same widthwise position as each other when viewed from the height direction.

[0117] The shaft 303 has both ends in the front-rear direction connected to the transmission shaft members 312 of the two rotating members 302. The shaft 303 extends linearly in the front-rear direction so as to connect between the transmission shaft members 312 of the two rotating members 302. Both ends of the shaft 303 are rotatable around the transmission shaft members 312 as the center of rotation. For example, the shaft 303 may be provided with an adjustment member capable of adjusting the distance between the transmission shaft members 312 of the two rotating members 302.

[0118] As described above, the shaft 303 according to this embodiment extends parallel to the front-rear direction when viewed in the height direction. With this configuration, the installation space required in the width direction of shaft 303 can be reduced compared to when shaft 303 extends in a direction intersecting the front-to-rear direction when viewed from the height direction, thereby making it possible to realize a compact plug door device.

[0119] <Fourth embodiment> In the above-mentioned second embodiment, the movement matching mechanism is described as having a shaft whose both ends in the front-rear direction are connected to the two pillars via the transmission shaft members of the two rotating members, but is not limited to this. In the fourth embodiment, the configuration of the movement matching mechanism is different from that of the second embodiment. In the fourth embodiment, the same components as those in the above-mentioned second embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0120] Fig. 20 is a schematic diagram of the movement matching mechanism 400 of the fourth embodiment. In Fig. 20, the components on one side (-X side) in the front-rear direction of the movement matching mechanism 400 are suffixed with the symbol A, and the components on the other side (+X side) are suffixed with the symbol B, but when there is no particular need to distinguish between them, the suffix symbols will be omitted in the description.

[0121] 20, the movement matching mechanism 400 includes two pillars 451 that apply rotational power to rotate within a plane perpendicular to the vehicle height direction, two pillar-side bevel gears 401 that rotate integrally with the pillar 451 as the center of rotation, two link-side bevel gears 402 that mesh with the two pillar-side bevel gears 401, respectively, and a link shaft member 403 whose both ends in the front-rear direction are connected to the two link-side bevel gears 402. An upper arm 452 that supports an upper part of the door 2 is connected to an upper part of the pillar 451. A lower arm (not shown) that supports a lower part of the door 2 is connected to a lower part of the pillar 451.

[0122] The pillar side bevel gear 401 is disposed coaxially with the rotation center of the pillar 451. The pillar side bevel gear 401 rotates integrally with the pillar 451 around the pillar 451 as the rotation center. The pillar side bevel gear 401 is provided on the upper end portion of the pillar 451.

[0123] The two pillar side bevel gears 401 have bevel gears whose diameter gradually decreases toward the upper side. One pillar side bevel gear 401A and the other pillar side bevel gear 401B have the same shape.

[0124] The link side bevel gear 402 is provided at a position where it meshes with the pillar side bevel gear 401. The two link side bevel gears 402 have bevel gears whose diameter gradually decreases toward the outside in the front-to-rear direction. One link side bevel gear 402A has a bevel gear whose diameter gradually decreases toward the -X side. In contrast, the other link side bevel gear 402B has a bevel gear whose diameter gradually decreases toward the +X side.

[0125] The link shaft member 403 has both ends in the front-rear direction connected to the two link side bevel gears 402. The link shaft member 403 extends linearly in the front-rear direction so as to connect the two link side bevel gears 402. The link shaft member 403 is provided rotatable about an axis extending in the front-rear direction. The two link side bevel gears 402 rotate integrally with the link shaft member 403, with the link shaft member 403 as the center of rotation.

[0126] In this embodiment, one end of the link shaft member 403 in the front-rear direction is connected to a link side bevel gear 402A that meshes with one pillar side bevel gear 401A, and the other end of the link shaft member 403 in the front-rear direction is connected to a link side bevel gear 402B that meshes with the other pillar side bevel gear 401B. For example, when one pillar side bevel gear 401A rotates in the direction of arrow G1 in Fig. 20, the link shaft member 403 rotates in the direction of arrow G2 in Fig. 20, and the other pillar side bevel gear 401B rotates in the direction of arrow G3 in Fig. 20. That is, one pillar side bevel gear 401A and the other pillar side bevel gear 401B rotate in opposite directions with each pillar 451A, 451B as the rotation center.

[0127] As described above, the movement matching mechanism 400 of this embodiment comprises two pillars 451 that apply rotational power to rotate within a plane perpendicular to the vehicle height direction, two pillar side bevel gears 401 that rotate together with the pillar 451 as the center of rotation, two link side bevel gears 402 that mesh with each of the two pillar side bevel gears 401, and a link shaft member 403 whose both front-rear ends are connected to the two link side bevel gears 402.

[0128] According to this configuration, when the door 2 is opened or closed, one pillar side bevel gear 401 and the other pillar side bevel gear 401 rotate in opposite directions together with each pillar 451 as the rotation center, so that the direction and amount of widthwise movement at both ends in the front-rear direction of the slide base 4 to which the door 2 is attached coincide with each other. Therefore, when the slide base 4 moves in the width direction during the plug operation, the slide base 4 is prevented from tilting in the front-rear direction, and does not become stuck. In addition, the pillar side bevel gear 401 and the lower arm rotate together with the pillar 451 as the center of rotation, so that the plug operations of the upper part of the door 2 and the lower part of the door 2 can be synchronized. In addition, since the components of the movement matching mechanism 400 are provided in the swing arm mechanism, the existing swing arm mechanism can be utilized, thereby reducing the number of parts compared to the case where new dedicated parts are provided.

[0129] <Fifth embodiment> In the above-mentioned second embodiment, the movement matching mechanism is described as having a shaft whose both ends in the front-rear direction are connected to the two pillars via the transmission shaft members of the two rotating members, but is not limited to this. In the fifth embodiment, the configuration of the movement matching mechanism is different from that of the second embodiment. In the fifth embodiment, the same components as those in the second embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0130] Fig. 21 is a schematic diagram of the movement matching mechanism 500 of the fifth embodiment. In Fig. 21, the components on one side (-X side) in the front-rear direction of the movement matching mechanism 500 are suffixed with the symbol A, and the components on the other side (+X side) are suffixed with the symbol B, but unless there is a particular need to distinguish between them, the suffix symbols will be omitted in the description.

[0131] 21, the movement matching mechanism 500 includes two pillars 551 that apply rotational power to rotate in a plane perpendicular to the vehicle height direction, two pillar-side gears 501 that rotate integrally with the pillars 551 as the center of rotation, an intermediate gear 502 that meshes with one of the two pillar-side gears 501, and a toothed belt 503 that meshes with the other of the two pillar-side gears 501 and the intermediate gear 502. An upper arm 552 that supports an upper part of the door 2 is connected to an upper part of the pillar 551. A lower arm (not shown) that supports a lower part of the door 2 is connected to a lower part of the pillar 551.

[0132] The pillar side gear 501 is disposed coaxially with the center of rotation of the pillar 551. The pillar side gear 501 rotates integrally with the pillar 551 with the pillar 551 as the center of rotation. The pillar side gear 501 is provided at the upper end of the pillar 551. The two pillar side gears 501 are disposed at different positions from each other in the height direction. In this embodiment, one pillar side gear 501A is disposed lower than the other pillar side gear 501B.

[0133] The intermediate gear 502 is provided at a position where it meshes with one of the pillar side gears 501A. The intermediate gear 502 is provided rotatably around an axis extending in the height direction. The length of the intermediate gear 502 in the height direction is greater than the length of the one of the pillar side gears 501A in the height direction. For example, the lower end of the intermediate gear 502 may be provided at a height equal to or lower than the lower end of the one of the pillar side gears 501A. For example, the upper end of the intermediate gear 502 may be provided at a height equal to or higher than the upper end of the other pillar side gear 501B.

[0134] The toothed belt 503 is provided at a position where it meshes with the other pillar side gear 501B and the intermediate gear 502. The toothed belt 503 is an endless belt. A plurality of teeth are arranged in the circumferential direction of the toothed belt 503 on the inner circumference of the toothed belt 503. The length of the toothed belt 503 in the height direction is smaller than the length of the other pillar side gear 501B in the height direction. The toothed belt 503 is arranged within the range of the other pillar side gear 501B in the height direction. The toothed belt 503 is arranged within the range of the upper part of the intermediate gear 502 in the height direction. The lower end of the toothed belt 503 is arranged above the upper end of one pillar side gear 501A. The other pillar side gear 501B and the intermediate gear 502 rotate together with the toothed belt 503.

[0135] In this embodiment, the toothed belt 503 is stretched over the intermediate gear 502 and the other pillar side gear 501B. The intermediate gear 502 located at one end side of the toothed belt 503 in the front-rear direction meshes with one pillar side gear 501A, and the other end side of the toothed belt 503 in the front-rear direction meshes with the other pillar side gear 501B. For example, when one pillar side gear 501A rotates in the direction of arrow J1 in FIG. 21, the intermediate gear 502 rotates in the direction of arrow J2 in FIG. 21. Then, the toothed belt 503 moves (circulates) in the direction of arrow J3 in FIG. 21, and the other pillar side gear 501B rotates in the direction of arrow J4 in FIG. 21. That is, one pillar side gear 501A and the other pillar side gear 501B rotate in opposite directions with the pillars 551A and 551B as the rotation centers.

[0136] As described above, the movement matching mechanism 500 of this embodiment comprises two pillars 551 that apply rotational power to rotate within a plane perpendicular to the height direction of the vehicle, two pillar side gears 501 that rotate together with the pillar 551 as the center of rotation, an intermediate gear 502 that meshes with one of the two pillar side gears 501, and a toothed belt 503 that meshes with the other of the two pillar side gears 501 and the intermediate gear 502.

[0137] According to this configuration, when the door 2 is opened or closed, one pillar side gear 501 and the other pillar side gear 501 rotate in opposite directions integrally with each pillar 551 around the respective pillar 551 as the rotation center, so that the direction and amount of widthwise movement at both ends in the front-rear direction of the slide base 4 to which the door 2 is attached coincide with each other. Therefore, when the slide base 4 moves in the width direction during the plug operation, the slide base 4 is prevented from tilting in the front-rear direction, and does not become stuck. In addition, the pillar side gear 501 and the lower arm rotate together with the pillar 551 as the center of rotation, so that the plug operations of the upper part of the door 2 and the lower part of the door 2 can be synchronized. In addition, since the components of the movement matching mechanism 500 are provided in the swing arm mechanism, the existing swing arm mechanism can be utilized, thereby reducing the number of parts compared to the case where new dedicated parts are provided.

[0138] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0139] For example, in the above-described embodiment, an example has been described in which the plug door device is provided with a pair of doors that open and close the boarding and alighting entrance of a railroad vehicle, but the present invention is not limited to this. For example, the plug door device may be provided on a vehicle other than a railroad vehicle. For example, the plug door device may be provided with a single-sliding door.

[0140] In addition, the components in the above-described embodiment may be replaced with well-known components without departing from the spirit of the present invention. Also, the above-described modified examples may be combined. Among the embodiments disclosed in this specification, those that are composed of multiple objects may be integrated, and conversely, those that are composed of one object may be divided into multiple objects. Regardless of whether they are integrated or not, it is sufficient that they are configured to achieve the object of the invention. [Explanation of symbols]

[0141] 1...plug door device, 2...door, 3...fixed base, 4...slide base, 6...driving source, 100...moving and matching mechanism, 101...fixed shaft member, 102...rotating member, 103...shaft, 111...contact arm, 112...transmission shaft member, 113...transmission arm, 120...guide member, 123...rail, 200...moving and matching mechanism, 202...rotating member, 203...shaft, 211...contact arm, 212...transmission shaft member, 213...transmission arm, 220...guide member, 223...rail, 250...swing arm mechanism, 251...pillar, 252... Upper arm, 253...lower arm, 300...moving and matching mechanism, 302...rotating member, 303...shaft, 311...contact arm, 312...transmission shaft member, 313...transmission arm, 320...guide member, 301...fixed shaft member, 400...moving and matching mechanism, 401...pillar side bevel gear, 402...link side bevel gear, 403...link shaft member, 451...pillar, 452...upper arm, 500...moving and matching mechanism, 501...pillar side gear, 502...intermediate gear, 503...toothed belt, 551...pillar, 552...upper arm, 2001...plug door device

Claims

1. A fixed base that is fixed to a body of a vehicle; a slide base to which a door of the vehicle is attached and which slides in a width direction of the vehicle relative to the fixed base by a driving force from a driving source; a movement matching mechanism for matching the direction and amount of movement in the width direction at both ends of the slide base in the front-rear direction of the vehicle with each other, The movement matching mechanism includes: two fixed shaft members provided on one of the vehicle body or the slide base, arranged to be spaced apart in the front-rear direction, and extending in a height direction of the vehicle; two rotating members each including a contact arm that contacts the other of the vehicle body or the slide base, and a transmission arm having a transmission shaft member that is spaced apart from the fixed shaft member, the contact arm and the transmission arm rotating together with the fixed shaft member as a rotation center; a shaft having both ends in the front-rear direction connected to the transmission shaft member of each of the two rotating members; Equipped with Each of the two fixed shaft members is fixed to the fixed base, Each of the two rotating members has a contact arm that contacts the slide base, A plug door device in which a guide member is provided on the slide base to guide the movement of the contact arm in the forward and backward directions.

2. The guide member has a rail extending along the front-rear direction, The contact arm includes a rotor that rolls along the rail. The plug door apparatus according to claim 1 .

3. The contact arm and the transmission arm extend in directions perpendicular to each other when viewed from the height direction. A plug door device according to claim 1 or 2.

4. A fixed base that is fixed to a body of a vehicle; a slide base to which a door of the vehicle is attached and which slides in a width direction of the vehicle relative to the fixed base by a driving force from a driving source; a movement matching mechanism for matching the direction and amount of movement in the width direction at both ends of the slide base in the front-rear direction of the vehicle with each other, The movement matching mechanism includes: two fixed shaft members provided on the fixed base, arranged to be spaced apart in the front-rear direction, and extending in a height direction of the vehicle; two rotating members each including a contact arm that contacts the slide base and a transmission arm having a transmission shaft member that is spaced apart from the fixed shaft member, the contact arm and the transmission arm rotating together with the fixed shaft member as a rotation center; a shaft having both ends in the front-rear direction connected to the transmission shaft members of the two rotating members, a guide member that guides the movement of the contact arm in the front-rear direction is provided on the slide base, The guide member has a rail extending along the front-rear direction, the contact arm includes a rotor that rolls along the rail; The contact arm and the transmission arm extend in directions perpendicular to each other when viewed from the height direction. Plug door device.

5. The vehicle further includes a swing arm mechanism for guiding movement of the door in the width direction and the front-rear direction, The swing arm mechanism includes: Two pillars are provided on the vehicle body, arranged to be spaced apart in the front-rear direction, and extending in a height direction of the vehicle; Two upper arms support an upper portion of the door and rotate integrally with the door about the pillar; two lower arms supporting a lower portion of the door and rotating together with the pillar as a rotation center; The movement matching mechanism includes: The two pillars as the two fixed shaft members; the two rotating members including the two upper arms; the shaft having both ends in the front-rear direction connected to the two pillars via the transmission shaft members of the two rotating members, respectively; A plug door device according to any one of claims 1 to 4.

6. A fixed base fixed to a vehicle body; a slide base to which a door of the vehicle is attached and which slides in a width direction of the vehicle relative to the fixed base by a driving force from a driving source; a movement matching mechanism for matching the direction and amount of movement in the width direction at both ends of the slide base in the front-rear direction of the vehicle with each other by using a rotational power that rotates within a plane perpendicular to the height direction of the vehicle; a swing arm mechanism that guides movement of the door in the width direction and the front-rear direction, The swing arm mechanism includes: Two pillars are provided on the vehicle body, arranged to be spaced apart in the front-rear direction, and extending in a height direction of the vehicle; Two upper arms support an upper portion of the door and rotate integrally with the door about the pillar; two lower arms supporting a lower portion of the door and rotating together with the pillar as a rotation center; The movement matching mechanism includes: The two pillars apply a rotational force to rotate within the plane; Two pillar-side bevel gears that rotate together with the pillar as a rotation center; two link side bevel gears meshing with the two pillar side bevel gears, respectively; a link shaft member having both ends in the front-rear direction connected to the two link side bevel gears. Plug door device.

7. A fixed base fixed to a vehicle body; a slide base to which a door of the vehicle is attached and which slides in a width direction of the vehicle relative to the fixed base by a driving force from a driving source; a movement matching mechanism for matching the direction and amount of movement in the width direction at both ends of the slide base in the front-rear direction of the vehicle with each other by using a rotational force that rotates within a plane perpendicular to the height direction of the vehicle; a swing arm mechanism that guides movement of the door in the width direction and the front-rear direction, The swing arm mechanism includes: Two pillars are provided on the vehicle body, arranged to be spaced apart in the front-rear direction, and extending in a height direction of the vehicle; Two upper arms support an upper portion of the door and rotate integrally with the door about the pillar; two lower arms supporting a lower portion of the door and rotating together with the pillar as a rotation center; The movement matching mechanism includes: The two pillars apply a rotational force to rotate within the plane; Two pillar-side gears that rotate together with the pillar as a rotation center; an intermediate gear that meshes with one of the two pillar-side gears; a toothed belt that meshes with the other of the two pillar-side gears and the intermediate gear. Plug door device.

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