CN114482760A

CN114482760A - Plug door device

Info

Publication number: CN114482760A
Application number: CN202111180352.6A
Authority: CN
Inventors: 榊源太; 渡边启佑
Original assignee: Nabtesco Corp
Current assignee: Nabtesco Corp
Priority date: 2020-11-13
Filing date: 2021-10-11
Publication date: 2022-05-13
Also published as: EP4001562A1

Abstract

The invention provides a sliding plug door device. The plug door device of the embodiment comprises: a fixed base; a slide base that slides in a width direction with respect to the fixed base by a driving force from a driving source; and a movement matching mechanism for matching a direction and a movement amount of movement in the width direction at both ends in the front-rear direction in the slide base with each other. The movement matching mechanism includes: two fixed shaft members that are disposed apart in the front-rear direction and extend in the height direction; two rotating members each having: a contact arm that contacts the slide base; and a transmission arm having a transmission shaft member disposed separately from the fixed shaft member, the contact arm and the transmission arm integrally rotating with the fixed shaft member as a rotation center; and a shaft, both ends of which in the front-rear direction are connected with transmission shaft components respectively provided by the two rotating components.

Description

Plug door device

Technical Field

The invention relates to a plug door device.

Background

Conventionally, a plug door device for plugging and pulling a door is known. The sliding operation is an operation of moving the door in the width direction of the railway vehicle while moving the door in the front-rear direction of the railway vehicle. For example, patent document 1 discloses a configuration including: an upper rail provided at an upper portion of a door opening of a vehicle body; a lower guide rail provided at a lower portion of the door opening; and a door motor which drives the door upper portion. The upper guide rail guides the upper portion of the door. The lower guide rail guides the lower portion of the door. The door engine connects the upper part of the door with the door engine. In such a sliding door apparatus, only the upper door portion is moved by the door engine, and the lower door portion follows the movement of the upper door portion. The plug door device thereby moves the door along the inner and outer surfaces of the vehicle body.

On the other hand, as a plug door device, a device including: a fixed base fixed to a vehicle body; and a slide base that slides in a width direction of the vehicle with respect to the fixed base by a driving force from the driving source. A door is mounted on the slide base. In the case of such a plug door device, a force (for example, a motor reaction force) opposing the driving force from the driving source is generated in the slide base. Therefore, due to the difference in the number of driving sources and the positions at which the driving sources are disposed, the directions and amounts of movement in the width direction at both ends in the front-rear direction of the vehicle in the slide base sometimes deviate from each other.

On the other hand, as a structure for matching a moving amount in a width direction of one end and a moving amount in a width direction of the other end in a front-rear direction in the slide base, a structure including a linkage shaft extending in the front-rear direction and a coupling mechanism having a link is known. The linkage mechanism enables the linkage shaft and one end and the other end in the front-back direction in the sliding base to be respectively connected.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2004-168089

Disclosure of Invention

Problems to be solved by the invention

However, when the link rotates about the interlinking shaft extending in the front-rear direction as a rotation center, a space in the height direction is required to allow the rotation of the link. Therefore, the conventional plug door device has room for improvement in terms of downsizing in the height direction.

The present invention has been made to solve the above-described problems, and an object thereof is to provide a plug door device that can be downsized in the height direction.

Means for solving the problems

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

(1) The plug door device according to an aspect of the present invention includes: a fixed base fixed to a vehicle body of a vehicle; a slide base to which a door of the vehicle is attached, the slide base being slid in a width direction of the vehicle with respect to the fixed base by a driving force from a driving source; and a movement matching mechanism for matching a direction and a movement amount of movement of both ends of the slide base in a front-rear direction of the vehicle in the width direction of the vehicle with each other, the movement matching mechanism including: two fixed shaft members that are provided to one of the vehicle body and the slide base, that are disposed apart in the front-rear direction of the vehicle, and that extend in the height direction of the vehicle; two rotating members each having: a contact arm that contacts the other of the vehicle body and the slide base; and a transmission arm having a transmission shaft member disposed separately from the fixed shaft member, the contact arm and the transmission arm integrally rotating about the fixed shaft member as a rotation center; and a shaft having a 1 st end to which the transmission shaft member of one of the two rotary members is connected and a 2 nd end to which the transmission shaft member of the other rotary member is connected, the shaft extending in the front-rear direction of the vehicle.

"consistent" is the following concept: in addition to the case of perfect agreement, the deviation amount in the range where the movement in the width direction of the vehicle is not hindered is included.

According to this structure, the rotating member rotates about the fixed shaft member extending in the height direction as a rotation center due to the movement of the slide base in the width direction, so that it is not necessary to provide a space in the height direction in order to allow the rotation of the rotating member. Therefore, the plug door device can be downsized in the height direction.

Both ends of the shaft in the front-rear direction are connected to transmission shaft members respectively provided in the two rotary members. Thus, the shaft can be appropriately disposed between the transmission shaft members provided in the two rotary members, and the movement range of the shaft can be obtained more widely than when the shaft is connected to the transmission shaft member in the middle.

(2) In the sliding plug door apparatus according to the above (1), the two fixed shaft members may be fixed to the vehicle body via the fixed base, respectively, and the contact arm may be in contact with the slide base.

(3) In the plug door device according to the above (2), a guide member that guides movement of the contact arm in the front-rear direction of the vehicle may be provided on the slide base.

(4) In the plug door device according to the above (3), the guide member may have a rail extending in the front-rear direction of the vehicle, and the contact arm may include a rotating body that rolls along the rail.

(5) In the plug door device according to any one of (1) to (4), the contact arm and the transmission arm may extend in directions orthogonal to each other as viewed in the height direction of the vehicle.

(6) The plug door device according to an aspect of the present invention includes: a fixed base fixed to a vehicle body of a vehicle; a slide base to which a door of the vehicle is attached, the slide base being slid in a width direction of the vehicle with respect to the fixed base by a driving force from a driving source; and a movement matching mechanism for matching a direction and a movement amount of movement of both ends of the slide base in a front-rear direction of the vehicle in the width direction of the vehicle with each other, the movement matching mechanism including: two fixed shaft members that are provided on the fixed base, that are disposed apart in the front-rear direction of the vehicle, and that extend in the height direction of the vehicle; two rotating members each having: a contact arm that contacts the slide base; and a transmission arm having a transmission shaft member disposed separately from the fixed shaft member, the contact arm and the transmission arm integrally rotating about the fixed shaft member as a rotation center; and a shaft having a 1 st end to which the transmission shaft member of one of the two rotary members is connected and a 2 nd end to which the transmission shaft member of the other rotary member is connected, the shaft extending in the front-rear direction of the vehicle, a guide member provided on the slide base to guide movement of the contact arm in the front-rear direction of the vehicle, the guide member having a rail extending in the front-rear direction of the vehicle, the contact arm including a rotary body that rolls along the rail, the contact arm and the transmission arm extending in directions orthogonal to each other as viewed in the height direction of the vehicle.

According to this structure, the rotating member rotates about the fixed shaft member extending in the height direction as a rotation center due to the movement of the slide base in the width direction, so that it is not necessary to provide a space in the height direction in order to allow the rotation of the rotating member. Thus, the size can be reduced in the height direction.

Further, the two fixed shaft members are fixed to the fixed base, respectively, so that the two fixed shaft members can be fixed to a constant position of the vehicle body via the fixed base.

Further, a guide member that guides the movement of the contact arm in the front-rear direction is provided to the slide base, so that the movement of the contact arm in the front-rear direction is guided by the guide member, whereby the movement in the width direction of the slide base can be converted into the rotation of the rotating member.

Further, the guide member has a rail extending in the front-rear direction, and the contact arm includes a rotating body that rolls along the rail, so that friction between the contact arm and the rail is reduced by the rotating body, and therefore, the movement of the slide base in the width direction can be smoothly converted into the rotation of the rotating member.

Further, both ends of the shaft in the front-rear direction are connected to the transmission shaft members provided in the two rotary members, respectively, so that the shaft can be appropriately disposed between the transmission shaft members provided in the two rotary members, respectively, and the movement range of the shaft can be obtained more widely than in the case where the shaft is connected halfway.

Further, the contact arm and the transmission arm extend in directions orthogonal to each other as viewed in the height direction, and when a straight line passing through the center of the fixed shaft member and the center of the contact portion of the contact arm as viewed in the height direction is taken as a virtual straight line, the distance between the virtual straight line and the center of the transmission shaft member as viewed in the height direction is maximized, and therefore, the uniform amount of movement can be maximized.

(7) The plug door device according to an aspect of the present invention includes: a fixed base fixed to a vehicle body of a vehicle; a slide base to which a door of the vehicle is attached, the slide base being slid in a width direction of the vehicle with respect to the fixed base by a driving force from a driving source; and a movement matching mechanism for matching a direction and a movement amount of movement in the width direction of the vehicle at both ends of the slide base in the front-rear direction of the vehicle with each other, the movement matching mechanism using rotational power that rotates in a plane orthogonal to the height direction of the vehicle.

According to this configuration, the movement matching mechanism uses the rotational power that rotates in the plane orthogonal to the height direction, and thus it is not necessary to provide a space in the height direction in order to use the rotational power. Thus, the size can be reduced in the height direction.

(8) In the plug door device according to any one of the above (1) to (6), the plug door device may include a swing arm mechanism that guides movement of the door that moves in the width direction and the front-rear direction of the vehicle via the slide base, the swing arm mechanism including: two pillars provided in the vehicle body, disposed so as to be separated in the front-rear direction of the vehicle, and extending in the height direction of the vehicle; two upper arms supporting an upper portion of the door and integrally rotating around the pillar as a rotation center; and two lower arms that support a lower portion of the door and integrally rotate around the pillar as a rotation center, the movement matching mechanism including: the strut as the fixed shaft member; the rotating member comprising the upper arm; and the shaft having a 1 st end connected to one of the two pillars and a 2 nd end connected to the other pillar, the shaft extending in the front-rear direction of the vehicle.

(9) In the plug door device described in the above (7), the plug door device may include a swing arm mechanism that guides movement of the door that moves in the width direction and the front-rear direction of the vehicle via the slide base, wherein the swing arm mechanism includes: two pillars provided in the vehicle body, disposed to be spaced apart in the front-rear direction of the vehicle, and extending in a height direction of the vehicle; two upper arms supporting an upper portion of the door and integrally rotating around the pillar as a rotation center; and two lower arms that support a lower portion of the door and integrally rotate around the pillar as a rotation center, the movement matching mechanism including: the two struts acting on rotational power rotating in the plane; two pillar-side bevel gears that rotate integrally about the pillar as a rotation center; two link-side bevel gears which are engaged with the two strut-side bevel gears, respectively; and a link shaft member having a 1 st end connected to one of the two link-side bevel gears and a 2 nd end connected to the other link-side bevel gear, the link shaft member extending in the front-rear direction of the vehicle.

(10) In the plug door device described in the above (7), the plug door device may include a swing arm mechanism that guides movement of the door that moves in the width direction and the front-rear direction of the vehicle via the slide base, the swing arm mechanism including: two pillars provided in the vehicle body, disposed to be spaced apart in the front-rear direction of the vehicle, and extending in a height direction of the vehicle; two upper arms supporting an upper portion of the door and integrally rotating around the pillar as a rotation center; and two lower arms that support a lower portion of the door and integrally rotate around the pillar as a rotation center, the movement matching mechanism including: the two struts acting on rotational power rotating in the plane; two column-side gears that rotate integrally around the column 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.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, a plug door device that can be downsized in the height direction can be provided.

Drawings

Fig. 1 is a perspective view of a plug door device according to embodiment 1.

Fig. 2 is a perspective view of the periphery including the movement matching mechanism of embodiment 1.

Fig. 3 is a perspective view of the periphery including one of the movement matching mechanisms in the front-rear direction according to embodiment 1.

Fig. 4 is a perspective view of the periphery of the movement matching mechanism according to embodiment 1 including the other side in the front-rear direction.

Fig. 5 is a plan view of the periphery including one of the movement matching mechanisms in the front-rear direction according to embodiment 1.

Fig. 6 is a plan view of the periphery of embodiment 1 including the other side in the front-rear direction of the movement matching mechanism.

Fig. 7 is an explanatory diagram of the operation of the movement matching mechanism according to embodiment 1.

Fig. 8 is an explanatory diagram of an effect of the movement matching mechanism according to embodiment 1.

Fig. 9 is an explanatory view of a comparative example.

Fig. 10 is a bottom view of the plug door device of embodiment 2.

Fig. 11 is a front view of the periphery including the swing arm mechanism of embodiment 2.

Fig. 12 is a perspective view of the periphery including the upper portion of the swing arm mechanism of embodiment 2.

Fig. 13 is a perspective view of the periphery including the lower portion of the swing arm mechanism of embodiment 2.

Fig. 14 is a perspective view of one of the swing arm mechanisms of embodiment 2 in the front-rear direction.

Fig. 15 is a bottom view of the periphery including one of the front-rear direction of the movement matching mechanism of embodiment 2.

Fig. 16 is a bottom view of the periphery including the other of the movement matching mechanism in the front-rear direction according to embodiment 2.

Fig. 17 is an explanatory diagram of the operation of the movement matching mechanism according to embodiment 2.

Fig. 18 is a bottom view of the periphery including the shaft constituting the movement matching mechanism of embodiment 3.

Fig. 19 is a front view of the periphery including the shaft of embodiment 3.

Fig. 20 is a schematic view of the movement matching mechanism of embodiment 4.

Fig. 21 is a schematic view of the movement matching mechanism of embodiment 5.

Description of the reference numerals

1. A plug door device; 2. a door; 3. a fixed base; 4. a slide base; 6. a drive source; 100. a movement conforming mechanism; 101. a fixed shaft member; 102. a rotating member; 103. a shaft; 111. a contact arm; 112. a transmission shaft member; 113. a transfer arm; 120. a guide member; 123. a track; 200. a movement conforming mechanism; 202. a rotating member; 203. a shaft; 211. a contact arm; 212. a drive shaft member; 213. a drive arm; 220. a guide member; 223. a track; 250. a swing arm mechanism; 251. a support post; 252. an upper arm; 253. a lower arm; 300. a movement conforming mechanism; 302. a rotating member; 303. a shaft; 311. a contact arm; 312. a transmission shaft member; 313. a transfer arm; 320. a guide member; 301. a fixed shaft member; 400. a movement conforming mechanism; 401. a pillar-side bevel gear; 402. a connecting rod side bevel gear; 403. a connecting rod component; 451. a pillar; 452. an upper arm; 500. a movement conforming mechanism; 501. a pillar-side gear; 502. an intermediate gear; 503. a toothed belt; 551. a pillar; 552. an upper arm; 2001. a sliding plug door device.

Detailed Description

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

< embodiment 1 >

Fig. 1 is a perspective view of a plug door device according to embodiment 1. Fig. 2 is a perspective view of the periphery including the movement matching mechanism of embodiment 1.

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, a pair of doors 2 is shown by a two-dot chain line. Fig. 1 and 2 each show a movement matching mechanism 100 in a state where the door 2 is at the fully closed position.

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

The plug door device 1 supports the door 2 such that an outer surface of a sidewall of a vehicle body is flush with an outer surface of the door 2 when the door 2 is at the fully closed position. The door 2 includes a door leaf 10 and a door hanger 11 connected to the door leaf 10. The door 2 is mounted on the slide base 4. The door hanger 11 is supported by the slide base 4 in a state movable in the front-rear direction (X direction) with respect to the slide base 4. The plug door device 1 of embodiment 1 does not have a swing arm mechanism that guides the movement of the door 2 in the width direction (Y direction) and the front-rear direction.

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

The slide base 4 slides in the width direction with respect to the fixed base 3 by a driving force from the driving 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 extend along the upper end edge of the entrance 15. Both ends of the slide base 4 in the front-rear direction are provided to be movable in the width direction along the rail base 9.

The driving source 6 outputs a driving force for moving the door 2. The drive source 6 is, for example, a motor. The output shaft of the motor rotates about an axis in the front-rear direction. For example, the output shaft of the motor is rotatable (rotatable in the forward and reverse directions) about one and the other of the axes along the forward and reverse directions. The drive source 6 is connected to a movable power cable 29, a so-called cable tow chain (registered trademark). The drive source 6 is supported by the slide base 4 via a power transmission mechanism 30. The driving source 6 is provided to be movable in the width direction of the slide base 4 and movable in the width direction.

The power transmission mechanism 30 includes a power conversion mechanism 31 that converts the direction of the driving force from the driving source 6, and an endless belt 32 that extends in the front-rear direction. The power conversion mechanism 31 converts rotation of the output shaft of the motor about an axis line along the front-rear direction into rotation about an axis line 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 rotatable about an axis parallel to the rotation axis of the gear 33 (an axis in the width direction) is provided at a position apart from the gear 33 in the front-rear direction.

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

The belt 32 is mounted with a coupling member 35 that moves together with the movement of the belt 32. A rotator (not shown) is supported by the coupling member 35. The rotating body 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. In fig. 1, reference numeral 7 denotes a restricting member that restricts the rotating body at the fully closed position of the door 2. Reference numeral 8 denotes a lock mechanism that holds the binding member 7 at a position where the binding member 7 binds the rotating body.

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

The door 2 on the-X side of the pair of doors 2 is connected to the upper portion of the belt 32 together with the coupling member 35 by the door hanger 11. In contrast, the door 2 on the + X side is connected to the lower portion of the belt 32 via the door hanger 11. The belt 32 is mounted on a gear 33 and a pulley 34 located at positions spaced apart from each other in the front-rear direction. The upper side portion and the lower side portion of the belt 32 move in opposite directions to each other in the front-rear direction. Therefore, when the belt 32 moves, the door 2 and the coupling member 35 on the-X side and the door 2 on the + X side move in the opposite directions to each other in the front-rear direction.

The driving force from the driving source 6 is transmitted to the belt 32, and the door hanger 11 and the coupling member 35 connected to the belt 32 move, so that the pair of doors 2 move from the fully closed position (the position where the outer surface of the vehicle body side wall is flush with the outer surface of the door 2) shown in fig. 1 to the fully open position. The fully open position means a position where the pair of doors 2 open the entrance 15 (fully open) and the pair of doors 2 come outside the vehicle. In the example of fig. 1, the door 2 on the-X side first moves from the fully closed position to the outer side in the width direction (specifically, an inclination including the width direction), and then moves straight to the-X side 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, includes an inclination in the width direction) from the fully closed position, and then moves straight to the + X side, thereby reaching the fully open position.

Although not shown, the opening/closing path of the guide rail includes a straight portion extending in the front-rear direction and an inclined portion inclined with respect 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, an inclination including the width direction) along the inclined portion. Since the rotating body is supported by the slide base 4 via the coupling member 35, the belt 32, and the like, when the rotating body moves along the inclined portion, the slide base 4 moves in the width direction. Since the door 10 is supported by the slide base 4 via the door hanger 11 and the like, when the slide base 4 moves in the width direction, the door 10 moves in the width direction.

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

The movement matching mechanism 100 matches (similarly) the direction (movement direction) and the amount of movement of the movement in the width direction at both ends in the front-rear direction of the slide base 4 with each other. The "direction and amount of movement along the width direction" refer to an 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 that are disposed apart in the front-rear direction and extend in the height direction (Z direction); two rotary members 102 rotatable about the fixed shaft member 101 as a rotation center; and a rod-shaped shaft 103.

Hereinafter, the following description will be made centering on the structure of the periphery including one side (the "X side") in the front-rear direction of the movement matching mechanism 100. The configuration of the periphery including the other side (+ X side) in the front-rear direction of the movement matching mechanism 100 is common to the configuration of the periphery including the one side (-X side) except for the arrangement position and the movement direction (rotation direction) of the constituent elements, and therefore, detailed description thereof is omitted.

Fig. 3 is a perspective view of the periphery including one side (the "X side") in the front-rear direction of the movement matching mechanism 100 according to embodiment 1. Fig. 4 is a perspective view of the periphery including the other side (+ X side) in the front-rear direction of the movement matching mechanism 100 according to embodiment 1. Fig. 5 is a plan view of the periphery including one side (the "X side") in the front-rear direction of the movement matching mechanism 100 according to embodiment 1. Fig. 6 is a plan view of the periphery including the other side (+ X side) in the front-rear direction of the movement matching mechanism 100 according to embodiment 1. Fig. 3 to 6 show the movement matching mechanism 100 in a state where the doors are at the fully closed position. In each drawing, a symbol a is given to the end of one component (-X side) in the front-rear direction of the movement matching mechanism 100, and a symbol B is given to the end of the other component (+ X side), and when no particular distinction is required, the description will be omitted with the end symbol.

As shown in fig. 1, the fixed shaft member 101 is provided to the vehicle body via the fixed base 3. The fixed shaft member 101 is coupled to the fixed base 3 via a fixing member 104 extending in the front-rear direction. The fixing member 104 is attached to the fixed base 3 by a plurality of (for example, two in the present embodiment) bolts 105 arranged in the front-rear direction with the fixing shaft member 101 interposed therebetween.

As shown in fig. 5, the rotary member 102 has an L-shape as viewed in the height direction. The rotating member 102 includes: an arm base 110 disposed 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 disposed separately 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 of the same member.

The arm base 110 is cylindrical extending in the height direction along the fixed shaft member 101. As shown in fig. 3, the arm base 110 is disposed below the fixing member 104. The arm base 110 surrounds 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.

The contact arm 111 extends radially outward (outward in a direction orthogonal to the arm base portion 110) from a lower portion of the arm base portion 110. As shown in fig. 5, the contact arm 111 is tapered as it goes radially outward from the arm base 110 in the height direction.

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 as viewed from the height direction. The + Y-side end of the guide member 120 is attached to the upper end of the slide base 4 by a plurality of (for example, two in the present embodiment) bolts 121 arranged in the front-rear direction.

A long hole 122 that opens in the height direction and extends in the front-rear direction is formed in the-Y side portion of the guide member 120. The long hole 122 is oblong in shape as viewed in the height direction. The guide member 120 has a rail 123 extending in the front-rear direction. The rails 123 constitute a pair of inner wall surfaces in the width direction of the long hole 122. The pair of inner wall surfaces extend in parallel with each other in the front-rear direction when viewed in the height direction. The length of the inner wall surface in the front-rear direction is larger than the outer diameter of the rotator 115.

The guide member 120 is not limited to the case where the elongated hole 122 is formed. For example, the guide member 120 may be formed with a groove extending in the front-rear direction. The long hole 122 is not limited to the case where it is oblong in the height direction. For example, the long hole 122 may have a rectangular shape as viewed in the height direction. For example, the form of the hole or groove formed in the guide member 120 can be changed according to the required specifications.

The contact arm 111 includes a rotating body 115 that rolls along a rail 123. As shown in fig. 3, the rotating body 115 is disposed below the contact arm 111. The rotating body 115 is coupled to the distal end portion (the portion farthest from the arm base portion 110) of the contact arm 111 so as to be rotatable about an axis extending in the height direction with respect to the distal end portion (the portion farthest from the arm base portion 110) of the contact arm 111. The shape of the rotating body 115 is circular in a height direction.

The transmission arm 113 extends radially outward from a portion different from the portion where the contact arm 111 extends, at the lower portion of the arm base 110. As shown in fig. 5, the transmission arm 113 is tapered as it goes radially outward from the arm base 110 in the height direction.

The contact arm 111 and the transfer arm 113 extend in mutually orthogonal directions as viewed in the height direction. For example, an angle Aa formed by the contact arm 111 and the transmission arm 113 is about 90 degrees in the height direction. The angle Aa is an angle formed by an imaginary straight line passing through the axial center of the fixed shaft member 101 and the rotation center of the rotating body 115 (the center of the distal end portion of the contact arm 111) and an imaginary straight line passing through the axial center of the fixed shaft member 101 and the axial center of the transmission shaft member 112, as viewed in the height direction.

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 coupled to the distal end (the portion farthest from the arm base 110) of the transmission arm 113 (see fig. 4).

As shown in fig. 2, the shaft 103 extends in the front-rear direction. The 1 st end in the front-rear direction of the shaft 103 is connected to one transmission shaft member 112 (see fig. 5 and 6) of the two rotary members 102. The 2 nd end in the front-rear direction of the shaft 103 is connected to the other transmission shaft member 112 of the two rotary members 102. The shaft 103 linearly extends across transmission shaft members 112 provided in the two rotary members 102, respectively. Both ends of the shaft 103 are provided to be rotatable around the transmission shaft member 112 as a rotation center. 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 included in the two rotary members 102.

The shaft 103 has rigidity that can sufficiently transmit the rotational force of one 102 of the two rotational members 102 to the other rotational member 102. For example, the shaft 103 may be a metal shaft member. For example, the shaft 103 is preferably a member that can be ideally regarded as a rigid body. The shaft 103 is not a member that does not deform even with a certain force applied, but may be a member that slightly deforms when a force greater than a certain value is applied.

The fixed shaft members 101 of the two rotary members 102 are arranged at the same width-direction position as viewed in the height direction (see fig. 5 and 6).

The rotating bodies 115 of the two rotating members 102 are disposed on the-Y side of the fixed shaft member 101 in the height direction when the door is at the fully closed position (see fig. 5 and 6). When the door is at the fully closed position, the rotating body 115 of the one rotating member 102A is disposed at a position + X relative to the stationary shaft member 101 in the height direction (see fig. 5). On the other hand, when the door is at the fully closed position, the rotating body 115 of the other rotating member 102B is disposed at a position closer to the-X side than the fixed shaft member 101 in the height direction (see fig. 6).

The transmission shaft member 112 of the one rotary member 102A is disposed at a position on the + Y side of the fixed shaft member 101 in the height direction when the door is at the fully closed position (see fig. 5). On the other hand, when the door is at the fully closed position, the transmission shaft member 112 of the other rotary member 102B is disposed at the-Y side with respect to the fixed shaft member 101 in the height direction (see fig. 6).

Fig. 7 is an explanatory diagram of the operation of the movement matching mechanism 100 according to embodiment 1. Fig. 7 is a plan view of the movement matching mechanism 100 according to the embodiment. Fig. 7 shows an example in which the slide base 4 is moved to the outer side in the width direction (+ Y side: pull-out direction) in accordance with the operation of opening the door from the state in which the door is at the fully closed position (an example of movement in the direction of 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 to the outside of the vehicle from the state in which the door is at the fully closed position.

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

shaft members

101A and 101B as rotation centers.

Specifically, the following cases are mentioned: when the slide base 4 moves to the widthwise outer side, first, the rotating body 115 of one rotating member 102A is pushed toward the + Y side by the inner wall surface of the rail 123 of the guide member 120A on the-Y side. In this case, the one rotary member 102A rotates counterclockwise (in the direction of arrow Ra) about the fixed shaft member 101A as a rotation center in a plan view. Then, the transmission shaft member 112 included in the one rotary member 102A pulls the shaft 103 to the-X side. Thereby, the transmission shaft member 112 of the other rotary member 102B is pulled toward the-X side by the shaft 103. Then, the other rotary member 102B rotates clockwise (in the arrow Rb direction) about the fixed shaft member 101B as a rotation center in a plan view. That is, when the rotating body 115 of the one rotating member 102A is pressed toward the + Y side earlier than 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 respect to the respective fixed

shaft members

101A and 101B as the rotation centers.

Otherwise, the following is exemplified: when the slide base 4 moves to the widthwise outer side, first, the rotating body 115 of the other rotating member 102B is pushed toward the + Y side by the inner wall surface of the guide member 120B on the-Y side of the rail 123. In this case, the other rotary member 102B rotates clockwise (in the direction of arrow Rb) about the fixed shaft member 101B as a rotation center in a plan view. Then, the transmission shaft member 112 included in the other rotational member 102B presses the shaft 103 toward the-X side. Thereby, the transmission shaft member 112 of the one rotary member 102A is pressed toward the-X side by the shaft 103. Then, the one rotary member 102A rotates counterclockwise (in the direction of arrow Ra) about the fixed shaft member 101A as a rotation center in a plan view. That is, when the rotating body 115 of the other rotating member 102B is pressed toward the + Y side earlier than the rotating body 115 of the one rotating member 102A, the one rotating member 102A and the other rotating member 102B rotate in opposite directions with respect to the respective fixed

shaft members

101A and 101B as the rotation centers.

Next, as an example of the plugging operation contrary to the example of fig. 7, an example (an example of moving in a direction opposite to the arrow Wd direction of fig. 7) will be described in which the slide base 4 moves inward in the width direction (-Y side: plugging direction) in accordance with the closing operation of the door from the state in which the door is at the full open position.

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

shaft members

101A and 101B as rotation centers.

Specifically, the following cases are mentioned: when the slide base 4 moves to the width direction inner side, first, the rotating body 115 of one rotating member 102A is pushed toward the-Y side by the inner wall surface of the track 123 of the guide member 120A on the + Y side. In this case, the one rotary member 102A rotates clockwise (in the direction opposite to the arrow Ra direction in fig. 7) about the fixed shaft member 101A as a rotation center in a plan view. Then, the transmission shaft member 112 included in the one rotary member 102A presses the shaft 103 to the + X side. Thereby, the transmission shaft member 112 of the other rotation member 102B is pressed by the shaft 103 to the + X side. Then, the other rotary member 102B rotates counterclockwise (in the direction opposite to the arrow Rb direction in fig. 7) about the fixed shaft member 101B as the rotation center in a plan view. That is, when the rotating body 115 of the one rotating member 102A is pressed toward the-Y side earlier than 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 respect to the respective fixed

shaft members

101A and 101B as the rotation centers.

Otherwise, the following is exemplified: when the slide base 4 moves to the width direction inner side, first, the rotating body 115 of the other rotating member 102B is pushed toward the-Y side by the inner wall surface of the track 123 of the guide member 120B on the + Y side. In this case, the other rotary member 102B rotates counterclockwise (in the direction opposite to the arrow Rb direction in fig. 7) about the fixed shaft member 101B as the rotation center in a plan view. Then, the transmission shaft member 112 included in the other rotation member 102B pulls the shaft 103 to the + X side. Thereby, the transmission shaft member 112 included in the one rotary member 102A is pulled toward the + X side by the shaft 103. Then, the one rotary member 102A rotates clockwise (in the direction opposite to the arrow Ra direction in fig. 7) about the fixed shaft member 101A as a rotation center in a plan view. That is, when the rotating body 115 of the other rotating member 102B is pressed toward the-Y side earlier than the rotating body 115 of the one rotating member 102A, the one rotating member 102A and the other rotating member 102B rotate in opposite directions with respect to the respective fixed

shaft members

101A and 101B as the rotation centers.

As described above, in the embodiment, in the plugging operation (both of the drawing and the plugging), when the slide base 4 moves in the width direction, the one rotational member 102A and the other rotational member 102B rotate in the opposite directions to each other with the respective fixed

shaft members

101A, 101B as the rotational centers.

Fig. 8 is an explanatory diagram of effects of the movement matching mechanism 100 according to embodiment 1. Fig. 9 is an explanatory view of a comparative example. Fig. 8 and 9 show an example in which the slide base moves outward in the width direction (pull-out direction) in response to the door being opened from the state in which the door is at the fully closed position. Fig. 9 also shows a movement matching mechanism 100 according to the embodiment.

As shown in fig. 9, if it is assumed that the-X side end of the slide base 4 is shifted in the pull-out direction by a delay Dy (slip delay) from the + X side end, the slide base 4 is tilted by an angle Ad of fig. 9. In this manner, in the plugging operation, if the slide base 4 is inclined with respect to the front-rear direction when the slide base 4 moves in the width direction, the slide base 4 and the rail base 9 (see fig. 1) may stick to each other. Here, sticking means a state in which a movable portion such as a sliding portion is fixed and smooth movement of the movable portion such as the sliding portion is hindered.

In contrast, in the embodiment, when the slide base 4 moves in the width direction during the plugging operation as described above, the one rotary member 102A and the other rotary member 102B rotate in the opposite directions to each other around the respective fixed

shaft members

101A and 101B as the rotation centers. Thereby, as shown in fig. 8, the direction and amount of movement in the width direction at both ends of the slide base 4 in the front-rear direction coincide with each other. According to the embodiment, the inclination angle Ad of the slide base 4 can be made zero by correcting the operation delay Md shown in fig. 9. As described above, in the embodiment, in the plugging operation, the slide base 4 can be prevented from being inclined with respect to the front-rear direction when the slide base 4 moves in the width direction, and the sticking can be prevented.

As described above, the plug door device 1 according to the present embodiment includes: a fixed base 3 fixed to a vehicle body of a vehicle; a slide base 4 to which a door 2 of the vehicle is attached, and which slides in a width direction of the vehicle relative to a fixed base 3 by a driving force from a driving source 6; and a movement matching mechanism 100 for matching the direction and amount of movement in the width direction at both ends of the vehicle in the front-rear direction in the slide base 4 with each other. The movement matching mechanism 100 includes: two fixed shaft members 101 provided on the fixed base 3, disposed apart in the front-rear direction, and extending in the height direction of the vehicle; two rotating members 102 each having: a contact arm 111 that contacts the slide base 4; and a transmission arm 113 having a transmission shaft member 112 disposed separately from the fixed shaft member 101, the contact arm 111 and the transmission arm 113 integrally rotating around the fixed shaft member 101 as a rotation center; and a shaft 103 having both ends in the front-rear direction connected to transmission shaft members 112 provided in the two rotary members 102, respectively. 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 rail 123 extending in the front-rear direction. The contact arm 111 includes a rotating body 115 that rolls along a rail 123. The contact arm 111 and the transfer arm 113 extend in mutually orthogonal directions as viewed in the height direction.

According to this configuration, since the rotating member 102 rotates around the fixed shaft member 101 extending in the height direction as the rotation center due to the movement of the slide base 4 in the width direction, it is not necessary to provide a space in the height direction in order to allow the rotation of the rotating member 102. Therefore, the plug door device 1 can be downsized in the height direction.

The two fixed shaft members 101 are fixed to the fixed base 3, respectively, so that the two fixed shaft members 101 can be fixed to a constant position of the vehicle body via the fixed base 3.

A guide member 120 that guides the movement of the contact arm 111 in the front-rear direction is provided on the slide base 4, so that the movement of the contact arm 111 in the front-rear direction is guided by the guide member 120. Thereby, the movement of the slide base 4 in the width direction is converted into the rotation of the rotation member 102.

The guide member 120 has a rail 123 extending in the front-rear direction, and the contact arm 111 includes a rotating body 115 rolling along the rail 123, so that friction between the contact arm 111 and the rail 123 is reduced by the rotating body 115. Therefore, the movement in the width direction of the slide base 4 is smoothly converted into the rotation of the rotation member 102.

Both ends of the shaft 103 in the front-rear direction are connected to transmission shaft members 112 provided in the two rotary members 102, respectively. Accordingly, the shaft 103 can be appropriately disposed between the transmission shaft members 112 provided in the two rotary members 102, as compared to the case where the shaft 103 is connected to the transmission shaft members at a middle portion thereof, and the movement range of the shaft 103 can be obtained widely.

The contact arm 111 and the transmission arm 113 extend in directions orthogonal to each other in a height direction, and when a straight line passing through the center of the axis of the fixed shaft member 101 and the center of the contact portion of the contact arm 111 in the height direction is defined as a virtual straight line, a distance between the virtual straight line and the axis of the transmission shaft member 112 in the height direction is maximized. Therefore, the amount of movement in the slide base 4 that matches the front and rear ends can be maximized.

When the rotating member 102 rotates about the fixed shaft member 101 extending in the height direction as a rotation center due to the movement of the slide base 4 in the width direction, the shaft 103 is stretched or compressed, and thus the application of torsion to the shaft 103 can be suppressed.

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

In the above embodiment, the following examples are given: the two fixed shaft members 101 are fixed to the fixed base 3, respectively, and the two rotary members 102 have contact arms 111 that contact the slide base 4, respectively, but the present invention is not limited thereto. For example, the two fixed shaft members 101 may be fixed to the slide base 4, and the two rotary members 102 may have contact arms 111 that contact the fixed base 3. For example, the arrangement form of the two fixed shaft members 101 and the two rotary members 102 can be changed according to the required specifications.

In the above-described embodiment, the example (see fig. 3) in which the guide member 120 for guiding the movement of the contact arm 111 in the front-rear direction is provided on the slide base 4 has been described, but the present invention is not limited thereto. For example, the slide base 4 may not be provided with the guide member 120. For example, the contact arm 111 may be in direct contact with the slide base 4.

In the above-described embodiment, the following example (see fig. 5) is given: the guide member 120 has a rail 123 extending in the front-rear direction, and the contact arm 111 includes a rotating body 115 rolling along the rail 123, but is not limited thereto. For example, the contact arm 111 may not include the rotating body 115. For example, the contact arm 111 may include a pin fixed to be non-rotatable with respect to the distal end portion of the contact arm 111. For example, the form of the contact arm 111 can be changed according to the required specification.

In the above-described embodiment, the example in which the contact arm 111 and the transmission arm 113 extend in the mutually orthogonal directions as viewed in the height direction (see fig. 5) has been described, but the present invention is not limited to this. For example, the contact arm 111 and the transfer arm 113 may extend in directions obliquely crossing each other as viewed in the height direction. For example, the angle Aa formed by the contact arm 111 and the transmission arm 113 may be 10 degrees or more and 80 degrees or less, or 100 degrees or more and 170 degrees or less, as viewed from the height direction. For example, the angle Aa formed by the contact arm 111 and the transfer arm 113 in the height direction may be in a range of not more than 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 in accordance with the required specifications within the range in which the above-described effects are obtained by the movement matching mechanism 100.

In the above embodiment, the following examples are given: the movement matching mechanism 100 includes: two fixed shaft members 101 provided on the fixed base 3, disposed apart in the front-rear direction, and extending in the height direction of the vehicle; two rotating members 102 each having: a contact arm 111 that contacts the slide base 4; and a transmission arm 113 having a transmission shaft member 112 disposed separately from the fixed shaft member 101, the contact arm 111 and the transmission arm 113 integrally rotating around the fixed shaft member 101 as a rotation center; and a shaft 103 extending so as to straddle the transmission shaft members 112 provided in the two rotary members 102, respectively, and having both ends in the front-rear direction connected to the transmission shaft members 112 provided in the two rotary members 102, respectively, but the present invention is not limited thereto. For example, the movement matching mechanism may be configured by connecting two swing arms disposed apart in the front-rear direction by a belt, a link, a gear, or the like.

For example, the plug door device may include: a fixed base fixed to a vehicle body of a vehicle; a slide base to which a door of a vehicle is attached, the slide base being slid in a width direction of the vehicle with respect to a fixed base by a driving force from a driving source; and a movement matching mechanism for matching a direction and a movement amount of movement in a width direction at both ends in a front-rear direction of the vehicle in the slide base with each other using rotational power that rotates in a plane orthogonal to a height direction of the vehicle.

< embodiment 2 >

In embodiment 1 described above, an example in which the plug door device does not have a swing arm mechanism is described, but the present invention is not limited to this. In embodiment 2, the plug door device is different from embodiment 1 in that components including a swing arm mechanism and a movement matching mechanism are provided in the swing arm mechanism. In embodiment 2, the same components as those in embodiment 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

Fig. 10 is a bottom view of the plug door device of embodiment 2.

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 door 2 is at the fully closed position.

The power transmission mechanism 230 includes a power conversion mechanism 231 that converts the direction of driving force from a drive source, not shown, and an endless belt 232 extending in 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 rotatable about an axis parallel to the rotation axis of the gear 233 (an axis in the height direction) is provided at a position apart from the gear 233 in the front-rear direction.

The belt 232 is mounted on a gear 233 and a pulley 234. The belt 232 moves (revolves) around the gear 233 and the pulley 234 in conjunction with the rotation of the gear 233. A door hanger 11 is attached to the belt 232. The door hanger 11 moves in the front and rear direction together with the movement of the belt 232.

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

the-X side door 2 of the pair of doors 2 is connected to the-Y side portion of the belt 232 by means of the door hanger 11. On the other hand, the + X-side door 2 is connected to the + Y-side portion of the belt 232 via the door hanger 11. The belt 232 is bridged over a gear 233 and a pulley 234 which are located at positions apart from each other in the front-rear direction. the-Y side portion and the + Y side portion of the belt 232 move in opposite directions to each other in the front-rear direction. Therefore, if the belt 232 moves, the door 2 on the-X side and the door 2 on the + X side move in the opposite directions to each other in the front-rear direction.

A driving force from a driving source (not shown) is transmitted to the belt 232, and the door hanger 11 connected to the belt 232 moves, so that the pair of doors 2 moves from the fully closed position (a position where the outer surface of the side wall of the vehicle body is flush with the outer surface of the door 2) shown in fig. 10 to the fully open position. In the example of fig. 10, the door 2 on the-X side first moves outward in the width direction (specifically, inclines in the width direction) from the fully closed position, and then moves straight toward the-X side to reach the fully open position. On the other hand, the door 2 on the + X side moves from the fully closed position to the outside in the width direction (specifically, to include the inclination in the width direction), and then moves straight to the + X side to reach the fully open position.

Fig. 11 is a front view of the periphery including the swing arm mechanism 250 of embodiment 2. Fig. 12 is a perspective view of the periphery including the upper portion of the swing arm mechanism 250 of embodiment 2. Fig. 13 is a perspective view of the periphery including the lower portion of the swing arm mechanism 250 of embodiment 2. Fig. 14 is a perspective view of one of the swing arm mechanisms 250 according to embodiment 2 in the front-rear direction. In each figure, a symbol a is given to the end of one component (-X side) in the front-rear direction of the swing arm mechanism 250, and a symbol B is given to the end of the other component (+ X side), and when no particular distinction is required, the description of the symbol at the end will be omitted.

As shown in fig. 11, the swing arm mechanism 250 includes: two pillars 251 provided in the vehicle body, arranged to be spaced apart in the front-rear direction, and extending in the height direction; two upper arms 252 supporting the upper portion of the door 2 and integrally rotating around the column 251 as a rotation center; and two lower arms 253 that support the lower portion of the door 2 and integrally rotate around the column 251 as a rotation center.

The strut 251 is a shaft member linearly extending in the height direction. The column 251 is disposed at a position further outward than the entrance in the front-rear direction. As shown in fig. 12, the upper end of the column 251 is attached to the upper portion of the vehicle body via an upper bracket 258. As shown in fig. 13, the lower end portion of the strut 251 is attached to the lower portion of the vehicle body via a lower bracket 259. The support 251 is supported by each

bracket

258, 259 so as to be rotatable about an axis extending in the height direction with respect to each

bracket

258, 259.

As shown in fig. 14, the upper arm 252 is attached to the upper portion of the column 251 so as not to be rotatable. The upper arm 252 includes: an arm base 210 disposed coaxially with the column 251; and a contact arm 211 disposed on the upper end side of the door 2. For example, the arm base 210 and the contact arm 211 may be integrally formed of the same member.

The arm base 210 is ring-shaped coaxial with the column 251. The arm base 210 is disposed in the upper bracket 258 in the vicinity below the portion connected to the column 251. The arm base 210 surrounds the circumference of the column 251. For example, a bearing may be provided between the inner periphery of the arm base 210 and the column 251 to rotatably support the column 251.

The contact arm 211 extends radially outward (outward in a direction orthogonal to the center axis of the arm base 210) from the arm base 210. The contact arm 211 includes: a 1 st extending portion 211a extending from the arm base portion 210 toward the radial outside with a uniform width; a 2 nd extending part 211b extending upward from the tip of the 1 st extending part 211 a; and a 3 rd extending portion 211c that gradually tapers from the tip of the 2 nd extending portion 211b toward the radially outer side (specifically, toward the radially outer side along the extension line of the 1 st extending portion 211a in the height direction).

The lower arm 253 is attached to the lower portion of the column 251 so as not to be rotatable. The lower arm 253 is connected near above a portion where the stay 251 is connected in the lower bracket 259.

The lower arm 253 extends radially outward from the column 251 (outward in a direction orthogonal to the central axis of the column 251). The lower arm 253 includes a 1 st arm 253a, a 2 nd arm 253b, a 3 rd arm 253c, and a 4 th arm 253 d. The 1 st arm 253a extends radially outward from the column 251. The 2 nd arm 253b extends downward from the tip of the 1 st arm 253 a. The 3 rd arm portion 253c extends radially outward from the distal end of the 2 nd arm portion 253b (specifically, radially outward along an extension of the 1 st arm portion 253a in the height direction). The 4 th arm portion 253d extends from the tip of the 3 rd arm portion 253c obliquely with respect to the radial direction outward (specifically, radially outward along an extension line of the 3 rd arm portion 253c as viewed in the height direction).

As shown in fig. 13, a lower guide 260 for guiding the movement of the lower arm 253 in the front-rear direction is provided at the lower end of the door 2. The lower rail 260 extends in the front-rear direction. The lower rail 260 is formed in a U shape that is open downward when viewed from the front-rear direction. The lower rail 260 includes: an outer wall portion 261 fixed to the door 2; an inner wall portion 262 disposed at a position further inward in the width direction than the outer wall portion 261; and an upper wall portion 263 connecting an upper end of the outer wall portion 261 and an upper end of the inner wall portion 262.

The lower arm 253 includes a roller 255 that rolls along the lower rail 260. The roller 255 is mounted on the tip of the 4 th arm portion 253d of the lower arm 253. The roller 255 is attached to the tip of the 4 th arm 253d in a rotatable state around an axis extending in the height direction. The roller 255 is disposed above the tip of the 4 th arm 253 d. The roller 255 is disposed between the outer wall portion 261 and the inner wall portion 262 in the width direction.

The roller 255 moves along the guide surface of the lower rail 260 (the inner wall surface on the + Y side or the inner wall surface on the-Y side) in accordance with the sliding movement of the door 2.

For example, when the door 2 moves from the fully closed position to the outside in the width direction (specifically, includes moving obliquely in the width direction), the roller 255 is pressed to the + Y side by the guide surface (+ 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) about the column 251A as a rotation center in a bottom view, and the other lower arm 253B rotates counterclockwise (in the direction of arrow E2 in fig. 13) about the column 251B as a rotation center in a bottom view.

After that, when the door 2 moves straight outward in the front-rear direction, the rollers 255 of the two lower arms 253 roll along the guide surfaces of the lower guide rails 260. Thereby, the door 2 moves outward in the front-rear direction with respect to the roller 255 and the lower arm 253, and reaches the fully open position.

For example, when the door 2 moves straight inward in the front-rear direction from the fully open position, the rollers 255 of the two lower arms 253 roll along the guide surfaces of the lower guide rails 260. When the door 2 is moved inward in the width direction (specifically, when it is inclined in the width direction), the roller 255 is pressed toward the-Y side by the guide surface (inner wall surface on the Y side) of the outer wall 261. Then, one lower arm 253A rotates counterclockwise (in the direction opposite to the arrow E1 in fig. 13) about the column 251A as a rotation center in a bottom view, and the other lower arm 253B rotates clockwise (in the direction opposite to the arrow E2 in fig. 13) about the column 251B as a rotation center in a bottom view. Thereby, the door 2 moves to the-Y side with the rotation of the lower arm 253, and reaches the fully closed position.

As shown in fig. 10, the movement matching mechanism 200 includes: two posts 251 as two fixed shaft members; two rotating members 202 comprising two upper arms 252; and a shaft 203 having both ends in the front-rear direction connected to the two columns 251 via transmission shaft members 212 provided in the two rotary members 202, respectively.

Hereinafter, the structure of the periphery including one side (the "X side") in the front-rear direction of the movement matching mechanism 200 will be described as the center. The configuration of the periphery including the other side (+ X side) in the front-rear direction of the movement matching mechanism 200 is common to the configuration of the periphery including the one side (-X side) except for the arrangement position and the movement direction (rotation direction) of the constituent elements, and therefore, detailed description thereof is omitted.

Fig. 15 is a bottom view of the periphery including one side (the "X side") in the front-rear direction of the movement matching mechanism 200 according to embodiment 2. Fig. 16 is a bottom view of the periphery including the other side (+ X side) in the front-rear direction of the movement matching mechanism 200 according to embodiment 2. Fig. 15 and 16 show the movement matching mechanism 200 in a state where the door is at the fully closed position. In the drawings, a symbol a is given to the end of one component (-X side) in the front-rear direction of the movement matching mechanism 200, and a symbol B is given to the end of the other component (+ X side), and in the case where no particular distinction is required, the description of the symbol at the end is omitted.

As shown in fig. 15, the rotary member 202 has an L-shape as viewed in the height direction. The rotating member 202 includes: an upper arm 252 (specifically, a structure including an arm base 210 disposed coaxially with the support 251 and a contact arm 211 disposed on the upper end side of the door 2); and a driving arm 213 having a driving shaft member 212 disposed separately from the rotation center of the column 251. For example, the upper arm 252 and the actuator arm 213 may be integrally formed of the same member.

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 as viewed in the height direction. The + Y-side end of the guide member 220 is attached to the lower end of the slide base 4 by a plurality of (for example, 3 in the present embodiment) bolts 121 arranged in the front-rear direction.

The guide member 220 has a long hole 222 that is open in the height direction and extends in the front-rear direction. The guide member 220 has a rail 223 extending in the front-rear direction. The rails 223 constitute a pair of inner wall surfaces in the width direction of the long hole 222. The pair of inner wall surfaces extend in parallel with each other in the front-rear direction when viewed in the height direction. The length of the inner wall surface in the front-rear direction is larger than the outer diameter of the rotor 215.

The contact arm 211 includes a rotating body 215 that rolls along a rail 223. The rotating body 215 is disposed above the contact arm 211. The rotating body 215 is coupled to the tip end portion (the portion farthest from the arm base portion 210) of the 3 rd extending portion 211c of the contact arm 211 so as to be rotatable about an axis extending in the height direction with respect to the tip end portion (the portion farthest from the arm base portion 210) of the 3 rd extending portion 211c of the contact arm 211. The shape of the rotating body 215 is a circular shape as viewed in the height direction.

The transmission arm 213 extends radially outward from a portion of the arm base portion 210 different from the portion from which the contact arm 211 extends. The transmission arm 213 is tapered and then rounded as it goes radially outward from the arm base 210 in the height direction. In the transmission arm 213, a circular-shaped bulging portion is disposed at a position overlapping with annular portions provided to both ends of the shaft 203 as viewed in the height direction.

The contact arm 211 and the transmission arm 213 extend in mutually orthogonal directions as viewed in the height direction. For example, the angle Am formed by the contact arm 211 and the transmission arm 213 is about 90 degrees when viewed in the height direction. Here, the angle Am is an angle formed by an imaginary straight line passing through the rotation center of the support 251 and the rotation center of the rotating body 215 (the center of the distal end portion of the contact arm 211) and an imaginary straight line passing through the rotation center of the support 251 and the shaft center of the transmission shaft member 212, as viewed in the height direction.

The transmission shaft member 212 extends in a direction (height direction) parallel to the column 251. The lower end of the transmission shaft member 212 is coupled to the distal end (the portion farthest from the arm base 210) of the transmission arm 213. The transmission shaft member 212 is provided at a position overlapping the center of the circular-shaped bulging portion of the transmission arm 213 when viewed in the height direction.

As shown in fig. 10, the shaft 203 is connected to two columns 251 via transmission shaft members 212 (see fig. 15 and 16) provided in the two rotary members 202. The shaft 203 has a 1 st end connected to one 251 of the two posts 251 and a 2 nd end connected to the other 251. The shaft 203 linearly extends across the transmission shaft members 212 provided in the two rotary members 202. Both ends of the shaft 203 are rotatable around the propeller shaft member 212. For example, the shaft 203 may be provided with an adjustment member that can adjust the distance between the transmission shaft members 212 included in the two rotary members 202.

The shaft 203 has rigidity that can sufficiently transmit the rotational force of one of the two rotational 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 ideally regarded as a rigid body. The shaft 203 is not a member that does not deform even with a certain force applied, but may be a member that slightly deforms when a force greater than a certain value is applied.

The two columns 251 are arranged at the same width position as each other when viewed in the height direction. The rotary bodies 215 included in the two rotary members 202 are disposed inside the posts 251 in the front-rear direction when viewed in the height direction (see fig. 15 and 16). The rotating body 215 of the one rotating member 202A is disposed at a position on the + X side of the one column 251A when viewed from the height direction when the door is at the fully closed position (see fig. 15). On the other hand, when the door is at the fully closed position, the rotating body 215 of the other rotating member 202B is disposed at a position on the-X side of the other column 251B in the height direction (see fig. 16).

The transmission shaft members 212 included in the two rotary members 202 are arranged at different widthwise positions from each other when viewed in the height direction (see fig. 15 and 16). The transmission shaft member 212 of the one rotary member 202A is disposed on the-Y side of the column 251 in the height direction when the door is at the fully closed position (see fig. 15). In contrast, when the door is at the fully closed position, the transmission shaft member 212 of the other rotating member 202B is disposed at the position on the + Y side of the column 251 in the height direction (see fig. 16).

Fig. 17 is an explanatory diagram of the operation of the movement matching mechanism 200 according to embodiment 2. Fig. 17 is a bottom view of the periphery including the movement conforming mechanism 200 of embodiment 2. Fig. 17 shows a side where the slide base 4 moves outward in the width direction (pull-out direction) in response to the door opening operation from the state where the door is at the fully closed position (a side where the slide base moves in the direction of arrow Wd in fig. 17). For example, fig. 17 corresponds to a state in which the door moves outward in the width direction so as to go to the outside of the vehicle from a state in which the door is at the fully closed position. In fig. 17, the door, the power transmission mechanism, and the like are not illustrated.

As shown in fig. 17, when the door is opened, the rotating bodies 215 of the two rotating members 202 are pushed to the + Y side by the rail 223 on the-Y side of the guide member 220. Then, one rotary member 202A rotates clockwise (in the direction of arrow R1) about the column 251A as a rotation center in a bottom view, and the other rotary member 202B rotates counterclockwise (in the direction of arrow R2) about the column 251B as a rotation center in a bottom view. That is, the one rotation member 202A and the other rotation member 202B rotate in opposite directions with the

columns

251A and 251B as rotation centers, respectively.

Specifically, the following cases are mentioned: when the door is operated, first, the rotating body 215 of one rotating member 202A is pushed to the + Y side by the track 223 on the-Y side of the guide member 220A. In this case, the one rotary member 202A rotates clockwise (in the direction of arrow R1) about the column 251A as a rotation center in a bottom view. Then, the transmission shaft member 212 included in the one rotary member 202A presses the shaft 203 toward the + X side. Thereby, the transmission shaft member 212 of the other rotation member 202B is pressed by the shaft 203 toward the + X side. Then, the other rotating member 202B rotates counterclockwise (in the direction of arrow R2) about the column 251B as the center of rotation in the bottom view. That is, when the rotating body 215 of the one rotating member 202A is pressed 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 the support posts 251A and 251B as the rotation centers, respectively.

Otherwise, the following is exemplified: when the door is operated, the rotating body 215 of the other rotating member 202B is initially pushed to the + Y side by the track 223 on the-Y side of the guide member 220B. In this case, the other rotating member 202B rotates counterclockwise (in the direction of arrow R2) with the column 251B as the center of rotation in a bottom view. Then, the transmission shaft member 212 included in the other rotation member 202B pulls the shaft 203 toward the + X side. Thereby, the transmission shaft member 212 included in the one rotary member 202A is pulled by the shaft 203 toward the + X side. Then, one rotary member 202A rotates clockwise (in the direction of arrow R1) about the column 251A as a rotation center in a bottom view. That is, when the rotating body 215 of the other rotating member 202B is pressed toward the + Y side earlier than the rotating body 215 of the one rotating member 202A, the one rotating member 202A and the other rotating member 202B rotate in opposite directions with the support posts 251A and 251B as the rotation centers, respectively.

Next, as an example of the plugging operation opposite to the plugging operation in the example of fig. 17, a side (a side moving in a direction opposite to an arrow Wd direction in fig. 17) on which the slide base 4 moves to the inside in the width direction (a plugging direction) in accordance with the closing operation of the door from the state in which the door is at the full open position will be described.

When the door is closed, the rotating bodies 215 of the two rotating members 202 are pushed to the-Y side by the rail 223 on the + Y side of the guide member 220. Then, one rotary member 202A rotates counterclockwise (in the direction opposite to the arrow R1 in fig. 17) about the column 251A as a rotation center in a bottom view, and the other rotary member 202B rotates clockwise (in the direction opposite to the arrow R2 in fig. 17) about the column 251B as a rotation center in a bottom view. That is, the one rotation member 202A and the other rotation member 202B rotate in opposite directions with the

columns

251A and 251B as rotation centers, respectively.

Specifically, the following cases are mentioned: when the door is closed, first, the rotating body 215 of one rotating member 202A is pushed to the-Y side by the track 223 on the + Y side of the guide member 220A. In this case, the one rotary member 202A rotates counterclockwise (in the direction opposite to the arrow R1 in fig. 17) with the column 251A as the rotation center in a bottom view. Then, the transmission shaft member 212 included in the one rotary member 202A pulls the shaft 203 toward the-X side. Thereby, the transmission shaft member 212 of the other rotation member 202B is pulled toward the-X side by the shaft 203. Then, the other rotating member 202B rotates clockwise (in the direction opposite to the direction of arrow R2 in fig. 17) about the column 251B as the rotation center in a bottom view. That is, when the rotating body 215 of the one rotating member 202A is pressed toward the-Y side earlier than 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 the support posts 251A and 251B as the rotation centers, respectively.

Otherwise, the following is exemplified: when the door is closed, first, the rotating body 215 of the other rotating member 202B is pushed to the-Y side by the track 223 on the + Y side of the guide member 220B. In this case, the other rotating member 202B rotates clockwise (in the direction opposite to the direction of arrow R2 in fig. 17) about the column 251B as the rotation center in a bottom view. Then, the transmission shaft member 212 included in the other rotation member 202B presses the shaft 203 toward the-X side. Thereby, the transmission shaft member 212 included in the one rotary member 202A is pressed toward the-X side by the shaft 203. Then, the one rotary member 202A rotates counterclockwise (in the direction opposite to the arrow R1 in fig. 17) about the column 251A as the rotation center in the bottom view. That is, when the rotating body 215 of the other rotating member 202B is pressed toward the-Y side earlier than the rotating body 215 of the one rotating member 202A, the one rotating member 202A and the other rotating member 202B rotate in opposite directions with the support posts 251A and 251B as the rotation centers, respectively.

As described above, in embodiment 2, in the plugging operation (both of the drawing and the plugging), the one rotary member 202A and the other rotary member 202B rotate in the opposite directions to each other around the

columns

251A and 251B as the rotation centers, respectively, at the time of the door opening and closing operation. Although detailed description is omitted, during the door opening and closing operation, the one lower arm 253A and the other lower arm 253B rotate in opposite directions with respect to the

pillars

251A and 251B as rotation centers.

As described above, the plug door device 2001 of the present embodiment includes the 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 includes: two pillars 251 provided in the vehicle body, arranged to be spaced apart in the front-rear direction, and extending in the height direction of the vehicle; two upper arms 252 supporting the upper portion of the door 2 and integrally rotating around the column 251 as a rotation center; and two lower arms 253 that support the lower portion of the door 2 and integrally rotate around the column 251 as a rotation center. The movement matching mechanism 200 includes: two posts 251 as two fixed shaft members; two rotating members 202 comprising two upper arms 252; and a shaft 203 having both ends in the front-rear direction connected to the two posts 251 via transmission shaft members 212 provided in the two rotary members 202, respectively. 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 in the front-rear direction. The upper arm 252 includes a rotating body 215 that rolls along a rail 223. A lower guide 260 for guiding the movement of the lower arm 253 in the front-rear direction is provided at the lower end portion of the door 2. The lower rail 260 extends in the front-rear direction. The lower arm 253 includes a roller 255 that rolls along the lower rail 260.

According to this configuration, when the door 2 is opened and closed, the one rotary member 202A and the other rotary member 202B rotate in the opposite directions to each other integrally with the respective support columns 251 around the respective support columns 251 as the rotation centers, and the direction and the amount of movement in the width direction 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, in the plugging operation, the slide base 4 can be suppressed from being inclined with respect to the front-rear direction when the slide base 4 moves in the width direction, and the sticking can be suppressed.

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, so that the movement of the upper arm 252 in the front-rear direction is guided by the guide member 220, whereby the movement in the width direction of the slide base 4 can be converted into the rotation of the rotation member 202.

Since the guide member 220 has the rail 223 extending in the front-rear direction and the upper arm 252 includes the rotating body 215 rolling along the rail 223, friction between the upper arm 252 and the rail 223 is reduced by the rotating body 215, and thus, the movement in the width direction of the slide base 4 can be smoothly converted into the rotation of the rotating member 202.

A lower guide 260 for guiding the movement of the lower arm 253 in the front-rear direction is provided at the lower end portion of the door 2, and the movement of the lower arm 253 in the front-rear direction is guided by the lower guide 260, whereby the movement in the width direction of the door can be converted into the rotation of the lower arm 253.

The lower rail 260 extends in the front-rear direction, and the lower arm 253 includes a roller 255 that rolls along the lower rail 260, so that friction between the lower arm 253 and the lower rail 260 is reduced by the roller 255, and thus, the movement of the door in the width direction can be smoothly converted into the rotation of the lower arm 253.

The upper arm 252 and the lower arm 253 integrally rotate around the column 251 as a rotation center, so that the plugging operation of the upper portion of the door 2 can be synchronized with the plugging operation of the lower portion of the door 2.

Since the components of the movement matching mechanism 200 are provided in the swing arm mechanism 250, the swing arm mechanism 250 in the related art can be used flexibly, and therefore, the number of components can be reduced as compared with the case where a new dedicated component is provided.

< embodiment 3 >

In embodiment 1 described above, an example is described in which the shaft extends in a direction intersecting the front-rear direction as viewed in the height direction of the vehicle, but the present invention is not limited to this. In embodiment 3, the arrangement of the shafts is different from that of embodiment 1. In embodiment 3, the same components as those in embodiment 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

Fig. 18 is a bottom view of the periphery including the shaft 303 constituting the movement matching mechanism 300 of embodiment 3. Fig. 19 is a front view of the periphery including the shaft 300 of embodiment 3. In fig. 18 and 19, a symbol a is given to the end of one component (-X side) in the front-rear direction of the movement matching mechanism 300, a symbol B is given to the end of the other component (+ X side), and the description of the symbol at the end is omitted when no particular distinction is necessary.

As shown in fig. 18, the shaft 303 extends in parallel with the front-rear direction as viewed in the height direction. The rotary member 302 has an L-shape as viewed in the height direction. The one rotation member 302A and the other rotation member 302B are formed in the same shape as each other as viewed in the height direction. The rotating member 302 includes: an arm base 310 disposed 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 disposed apart from the rotation center of the fixed shaft member 301. A guide member 320 for guiding the movement of the contact arm 311 in the front-rear direction is provided on the slide base not shown.

The transmission arm 313 extends radially outward from a portion of the arm base 310 that is different from a portion from which the contact arm 311 extends. The transmission arms 313 respectively provided to the two rotating members 302 extend in the same direction as each other as viewed in the height direction.

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 coupled to the distal end (the portion farthest from the arm base 310) of the transmission arm 313. The transmission shaft members 312 provided in the two rotary members 302 are arranged at the same width direction position as viewed in the height direction.

Both ends (1 st end and 2 nd end) of the shaft 303 in the front-rear direction are connected to transmission shaft members 312 provided in the two rotary members 302, respectively. The shaft 303 linearly extends in the front-rear direction so as to straddle the transmission shaft members 312 provided in the two rotary members 302. Both ends of the shaft 303 are provided to be rotatable around the transmission shaft member 312 as a rotation center. For example, the shaft 303 may be provided with an adjustment member that can adjust the distance between the transmission shaft members 312 provided in the two rotary members 302.

As described above, the shaft 303 of the present embodiment extends in parallel with the front-rear direction when viewed from the height direction.

According to this configuration, the installation space in the width direction of the shaft 303 can be reduced compared to a case where the shaft 303 extends in the direction intersecting the front-rear direction as viewed from the height direction, and therefore, a compact plug door device can be realized.

< embodiment 4 >

In the above-described embodiment 2, the following example is given: the movement matching mechanism includes shafts that are connected to the two pillars via transmission shaft members provided at both ends in the front-rear direction of the two rotary members, respectively, but is not limited thereto. In embodiment 4, the configuration of the movement matching mechanism is different from that of embodiment 2. In embodiment 4, the same components as those in embodiment 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

Fig. 20 is a schematic diagram of the movement matching mechanism 400 according to embodiment 4. In fig. 20, a symbol a is given to the end of one component (-X side) in the front-rear direction of the movement matching mechanism 400, and a symbol B is given to the end of the other component (+ X side), and when no particular distinction is required, the description will be omitted from the end symbols.

As shown in fig. 20, the movement matching mechanism 400 includes: two pillars 451 that act on rotational power that rotates in a plane orthogonal to the height direction of the vehicle; two support-side bevel gears 401 that rotate integrally around the support 451 as a rotation center; two link-side bevel gears 402 that mesh with the two strut-side bevel gears 401, respectively; and a link shaft member 403 having both ends in the front-rear direction connected to the two link-side bevel gears 402. An upper arm 452 for supporting the upper portion of the door 2 is connected to the upper portion of the support 451. A lower arm (not shown) for supporting the lower portion of the door 2 is connected to the lower portion of the support 451.

The support-side bevel gear 401 is disposed coaxially with the rotation center of the support 451. The column-side bevel gear 401 rotates integrally with the column 451 around the column 451 as a rotation center. The column-side bevel gear 401 is provided at the upper end of the column 451.

The two pillar-side bevel gears 401 have bevel gears gradually decreasing in diameter toward the upper side. One of the column-side bevel gears 401A and the other column-side bevel gear 401B have the same shape as each other.

The link-side bevel gear 402 is provided at a position meshing with the column-side bevel gear 401. The two link-side bevel gears 402 have bevel gears whose diameters gradually decrease toward the outer sides in the front-rear direction. One link-side bevel gear 402A has a bevel gear gradually decreasing in diameter toward the-X side. On the other hand, the other link-side bevel gear 402B has a bevel gear gradually decreasing in diameter toward the + X side.

The link member 403 extends in the front-rear direction. The 1 st end in the front-rear direction in the link shaft member 403 is connected to one 402 of the two link-side bevel gears 402. The 2 nd end in the front-rear direction in the link shaft member 403 is connected to the other 402 of the two link-side bevel gears 402. The link shaft member 403 linearly extends in the front-rear direction so as to straddle the two link-side bevel gears 402. The link shaft member 403 is provided rotatably around an axis extending in the front-rear direction. The two link-side bevel gears 402 rotate integrally with the link shaft member 403 around the link shaft member 403 as a rotation center.

In the present embodiment, one end portion in the front-rear direction of the link shaft member 403 is connected to the link-side bevel gear 402A that meshes with one of the strut-side bevel gears 401A, and the other end portion in the front-rear direction of the link shaft member 403 is connected to the link-side bevel gear 402B that meshes with the other strut-side bevel gear 401B. For example, when one of the column-side bevel gears 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 column-side bevel gear 401B rotates in the direction of arrow G3 in fig. 20. That is, the one pole-side bevel gear 401A and the other pole-side bevel gear 401B rotate in opposite directions with the

poles

451A and 451B as rotation centers, respectively.

As described above, the movement matching mechanism 400 of the present embodiment includes: two pillars 451 that act on rotational power that rotates in a plane orthogonal to the height direction of the vehicle; two support-side bevel gears 401 that rotate integrally around the support 451 as a rotation center; two link-side bevel gears 402 that mesh with the two strut-side bevel gears 401, respectively; and a link shaft member 403 having both ends in the front-rear direction connected to the two link-side bevel gears 402.

According to this configuration, when the door 2 is opened and closed, the one support-side bevel gear 401 and the other support-side bevel gear 401 rotate in opposite directions to each other integrally with each support 451 around each support 451 as a rotation center, and the direction and amount of movement in the width direction 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, in the plugging operation, the slide base 4 can be suppressed from being inclined with respect to the front-rear direction when the slide base 4 moves in the width direction, and the sticking can be suppressed.

The pillar-side bevel gear 401 and the lower arm rotate integrally around the pillar 451 as a rotation center, and the plugging operation of the upper portion of the door 2 can be synchronized with the plugging operation of the lower portion of the door 2.

Since the components of the movement matching mechanism 400 are provided in the swing arm mechanism, the existing swing arm mechanism can be used flexibly, and therefore, the number of components can be reduced as compared with the case where a new dedicated component is provided.

< embodiment 5 >

In the above-described embodiment 2, the following example is given: the movement matching mechanism includes shafts that are connected to the two pillars via transmission shaft members that are provided at both ends in the front-rear direction, respectively, of the two rotating members, respectively, but is not limited to this. In embodiment 5, the configuration of the movement matching mechanism is different from that of embodiment 2. In embodiment 5, the same components as those in embodiment 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

Fig. 21 is a schematic view of the movement matching mechanism 500 according to embodiment 5. In fig. 21, a symbol a is given to the end of one component (-X side) in the front-rear direction of the movement matching mechanism 500, and a symbol B is given to the end of the other component (+ X side), and when no particular distinction is required, the description will be omitted from the end symbols.

As shown in fig. 21, the movement matching mechanism 500 includes: two support columns 551 that act on rotational power that rotates in a plane orthogonal to the height direction of the vehicle; two column-side gears 501 that rotate integrally around the column 551 as a rotation center; an intermediate gear 502 that meshes with one of the two column-side gears 501; and a toothed belt 503 that meshes with the other of the two column-side gears 501 and the intermediate gear 502. An upper arm 552 supporting the upper portion of the door 2 is connected to the upper portion of the support post 551. A lower arm (not shown) for supporting the lower portion of the door 2 is connected to the lower portion of the support post 551.

The column-side gear 501 is disposed coaxially with the rotation center of the column 551. The column-side gear 501 rotates integrally with the column 551 about the column 551 as a rotation center. The support-column-side gear 501 is provided at the upper end of the support column 551. The two column-side gears 501 are disposed at different positions in the height direction. In the present embodiment, one of the column-side gears 501A is disposed below the other column-side gear 501B.

The intermediate gear 502 is provided at a position meshing with one of the column-side gears 501A. The intermediate gear 502 is provided rotatably about an axis extending in the height direction. The length of the intermediate gear 502 in the height direction is larger than the length of the one column-side gear 501A in the height direction. For example, the lower end of the intermediate gear 502 is preferably disposed at a height not higher than the lower end of the one column-side gear 501A. For example, the upper end of the intermediate gear 502 is preferably set to a height equal to or higher than the upper end of the other column-side gear 501B.

The toothed belt 503 is provided at a position where it meshes with the other column-side gear 501B and the intermediate gear 502. The toothed belt 503 is an endless belt. A plurality of teeth are provided in a row along 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 column-side gear 501B in the height direction. The toothed belt 503 is disposed within the range of the other column-side gear 501B in the height direction. The toothed belt 503 is disposed within a range of an upper portion of the intermediate gear 502 in the height direction. The lower end of the toothed belt 503 is disposed above the upper end of one of the column-side gears 501A. The other column-side gear 501B and the intermediate gear 502 rotate integrally with the toothed belt 503.

In the present embodiment, the toothed belt 503 is mounted on the intermediate gear 502 and the other column-side gear 501B. The intermediate gear 502 located on one end side in the front-rear direction of the toothed belt 503 meshes with one of the column-side gears 501A, and the other end side in the front-rear direction of the toothed belt 503 meshes with the other column-side gear 501B. For example, when one of the column-side gears 501A rotates in the direction of arrow J1 in fig. 21, the idler gear 502 rotates in the direction of arrow J2 in fig. 21. Then, the toothed belt 503 moves (revolves) in the direction of arrow J3 in fig. 21, and the other column-side gear 501B rotates in the direction of arrow J4 in fig. 21. That is, the one support side gear 501A and the other support side gear 501B rotate in opposite directions around the

supports

551A and 551B, respectively.

As described above, the movement matching mechanism 500 of the present embodiment includes: two support columns 551 that act on rotational power that rotates in a plane orthogonal to the height direction of the vehicle; two column-side gears 501 that rotate integrally around the column 551 as a rotation center; an intermediate gear 502 that meshes with one of the two pillar side gears 501; and a toothed belt 503 that meshes with the intermediate gear 502 and the other of the two column-side gears 501.

According to this configuration, when the door 2 is opened and closed, the one column-side gear 501 and the other column-side gear 501 rotate in opposite directions to each other integrally with the respective columns 551 about the respective columns 551 as the rotation centers, and the direction and the amount of movement in the width direction 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, in the plugging operation, the slide base 4 can be suppressed from being inclined with respect to the front-rear direction when the slide base 4 moves in the width direction, and the sticking can be suppressed.

The column-side gear 501 and the lower arm rotate integrally around the column 551 as a rotation center, and thereby the plugging operation of the upper portion of the door 2 can be synchronized with the plugging operation of the lower portion of the door 2.

Since the components of the movement matching mechanism 500 are provided in the swing arm mechanism, the existing swing arm mechanism can be used flexibly, and therefore, the number of components can be reduced as compared with the case where a new dedicated component is provided.

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

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

In addition, the components in the above-described embodiments may be replaced with well-known components without departing from the scope of the present invention. Further, the above modifications may be combined.

In the embodiments disclosed in the present specification, a member made of a plurality of objects may integrate the plurality of objects, and conversely, a member made of one object may be divided into a plurality of objects. The object of the present invention can be achieved by the above-described structure, regardless of whether they are integrated or not.

Claims

1. A plug door device is provided with:

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

a slide base to which a door of the vehicle is attached, the slide base being slid in a width direction of the vehicle with respect to the fixed base by a driving force from a driving source; and

a movement matching mechanism for matching a direction and a movement amount of movement in the width direction of the vehicle of both ends in the front-rear direction of the vehicle of the slide base with each other,

the movement matching mechanism includes:

two fixed shaft members that are provided to one of the vehicle body and the slide base, that are disposed apart in the front-rear direction of the vehicle, and that extend in the height direction of the vehicle;

two rotating members each having: a contact arm that contacts the other of the vehicle body and the slide base; and a transmission arm having a transmission shaft member disposed separately from the fixed shaft member, the contact arm and the transmission arm integrally rotating about the fixed shaft member as a rotation center; and

a shaft having a 1 st end to which the transmission shaft member of one of the two rotary members is connected and a 2 nd end to which the transmission shaft member of the other rotary member is connected, the shaft extending in the front-rear direction of the vehicle.

2. The plug door apparatus according to claim 1,

the two fixed shaft members are respectively fixed to the vehicle body by the fixed base,

the contact arm is in contact with the slide base.

3. The plug door apparatus according to claim 2,

a guide member that guides movement of the contact arm in the front-rear direction of the vehicle is provided at the slide base.

4. The plug door apparatus according to claim 3,

the guide member has a rail extending in the front-rear direction of the vehicle,

the contact arm includes a rotating body that rolls along the rail.

5. Plug door arrangement according to one of claims 1 to 4,

the contact arm and the transfer arm extend in mutually orthogonal directions as viewed from the height direction of the vehicle.

6. A plug door device is provided with:

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

the movement matching mechanism includes:

two fixed shaft members that are provided on the fixed base, that are disposed apart in the front-rear direction of the vehicle, and that extend in the height direction of the vehicle;

two rotating members each having: a contact arm that contacts the slide base; and a transmission arm having a transmission shaft member disposed separately from the fixed shaft member, the contact arm and the transmission arm integrally rotating about the fixed shaft member as a rotation center; and

a shaft having a 1 st end to which the transmission shaft member of one of the two rotary members is connected and a 2 nd end to which the transmission shaft member of the other rotary member is connected, the shaft extending in the front-rear direction of the vehicle,

a guide member that guides movement of the contact arm in the front-rear direction of the vehicle is provided at the slide base,

the contact arm is provided with a rotating body that rolls along the rail,

7. A plug door device is provided with:

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

a movement matching mechanism for matching a direction and a movement amount of movement in the width direction of the vehicle of both ends in a front-rear direction of the vehicle of the slide base with each other,

the movement matching mechanism uses rotational power that rotates in a plane orthogonal to the height direction of the vehicle.

8. Plug door arrangement according to one of claims 1 to 6,

the plug door device includes a swing arm mechanism for guiding movement of the door moving in the width direction and the front-rear direction of the vehicle via the slide base,

the swing arm mechanism includes:

two pillars provided in the vehicle body, disposed to be spaced apart in the front-rear direction of the vehicle, and extending in a height direction of the vehicle;

two upper arms supporting an upper portion of the door and integrally rotating around the pillar as a rotation center; and

two lower arms supporting a lower portion of the door and integrally rotating around the pillar as a rotation center,

the movement matching mechanism includes:

the strut as the fixed shaft member;

the rotating member comprising the upper arm; and

the shaft has a 1 st end connected to one of the two pillars and a 2 nd end connected to the other pillar, and extends in the front-rear direction of the vehicle.

9. The plug door apparatus according to claim 7,

the swing arm mechanism includes:

the movement matching mechanism includes:

the two struts acting on rotational power rotating in the plane;

two pillar-side bevel gears that rotate integrally about the pillar as a rotation center;

two link-side bevel gears which are engaged with the two strut-side bevel gears, respectively; and

a link shaft member having a 1 st end connected to one of the two link-side bevel gears and a 2 nd end connected to the other link-side bevel gear, the link shaft member extending in the front-rear direction of the vehicle.

10. The plug door apparatus according to claim 7,

the plug door device is provided with a swing arm mechanism for guiding the movement of the door moving in the width direction and the front-rear direction of the vehicle via the slide base,

the swing arm mechanism includes:

the movement matching mechanism includes:

the two struts acting on rotational power rotating in the plane;

two column-side gears that rotate integrally around the column 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.