JP2022078791A - Plug door device - Google Patents

Abstract

To provide a plug door device capable of saving energy.SOLUTION: A plug door device 1 includes a guide rail 5 regulating an opening/closing route 20 of a door for opening/closing a doorway of a vehicle, a driving source for moving the door, a rotary body moving integrally with the door by the driving force from the driving source and rolling along the opening/closing route 20 while being guided by the guide rail 5 when the door is opened/closed, a restraint member 7 moving to a restraint position at which the rotary body is restrained at a fully closed position of the door from a non-restraint position at which the door is not restrained by being pressed with the rotary body when the rotary body is moved in a closing direction Vc along the opening/closing route 20, and a lock mechanism 8 holding the restraint member 7 positioned at the restraint position.SELECTED DRAWING: Figure 2

Description

The present invention relates to a plug door device.

Conventionally, there is known a plug door device that moves a door in the width direction while moving it in the front-rear direction of a railway vehicle, that is, a so-called plug operation. The plug door device includes a guide rail that defines an opening / closing path of the door for opening / closing the entrance / exit of the vehicle, and a lock mechanism that locks the door at the fully closed position of the door. The movement of the door and the operation of the lock mechanism are performed by the driving force from the driving source.
For example, Patent Document 1 discloses a configuration including a motor for moving a door and a solenoid device for driving a door locking device.

Japanese Unexamined Patent Publication No. 200-100397

However, since the drive source for the door and the drive source for the door lock are separately provided, there is room for improvement in terms of energy saving.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a plug door device capable of saving energy.

As a means for solving the above problems, the aspect of the present invention has the following configuration.
(1) The plug door device according to the aspect of the present invention includes a guide rail that defines an opening / closing path of a door for opening / closing a vehicle entrance / exit, a drive source for moving the door, and a drive from the drive source. A moving member that moves integrally with the door by force and moves along the opening / closing path while being guided by the guide rail when the door opens / closes, and the moving member moves in the closing direction along the opening / closing path. A restraining member that moves from an unconstrained position that does not restrain the door to a restraining position that restrains the moving member at the fully closed position of the door by being pushed by the moving member when moving, and a position at the restraining position. It is provided with a lock mechanism for holding the restraining member.

According to this configuration, the restraint member can be moved to the restraint position (the position where the door is locked in the fully closed position) by utilizing the driving force of the drive source (door drive source) for moving the door. Therefore, an actuator other than the door drive source is not required to move the restraining member. Therefore, energy saving can be achieved.

(2) In the plug door device according to (1) above, the restraining member may be arranged so as to be offset from the guide rail in the height direction of the vehicle.

(3) In the plug door device according to (2) above, when the restraining member includes a first arm and a second arm arranged in order in the closing direction, and the restraining member is located at the non-constraining position. When the first arm does not cross the opening / closing path, the second arm crosses the opening / closing path, and the restraining member is located at the restraining position, the first arm and the second arm are said. You may cross the open / close path.

(4) In the plug door device according to (3) above, the opening / closing path includes a straight portion along the front-rear direction of the vehicle and an inclined portion inclined with respect to the straight portion, and the second arm includes the second arm. When the restraint member is located in the non-constrained position, the first surface is perpendicular to the inclined portion, and when the restraint member is located in the restraint position, the second surface is perpendicular to the inclined portion. And may include.

(5) In the plug door device according to (1) above, at least a part of the restraining member may be arranged within the height range of the guide rail of the vehicle.

(6) In the plug door device according to (5) above, even if the restraining member is provided with a guide wall that comes into contact with the moving member at the non-constraining position and guides the movement of the moving member along the opening / closing path. good.

(7) In the plug door device according to any one of (1) to (6) above, the restraint member may be rotatably provided about an axis extending in the height direction of the vehicle.

(8) In the plug door device according to (7) above, the restraint member is provided on the side opposite to the portion that restrains the moving member across the shaft, and has a held portion held by the lock mechanism. You may prepare.

(9) In the plug door device according to (8) above, the held portion may be integrally formed of the same member as the restraining member.

(10) In the plug door device according to any one of (1) to (9) above, the restraint member is provided with a push member that pushes a switch when the restraint member is located at the restraint position. You may.

(11) In the plug door device according to any one of (1) to (10) above, the moving member is made rotatable about an axis extending in the height direction of the vehicle and is provided in the opening / closing path. It is a rotating body that rolls along, and the shape of the rotating body may be a circular shape when viewed from the height direction.

(12) In the plug door device according to any one of (1) to (11) above, an elastic member that applies an elastic force to the restraining member so that the restraining member is kept in the non-constraining position is provided. You may also prepare further.

(13) In the plug door device according to (12) above, the restraining member is rotatably provided about a shaft extending in the height direction of the vehicle, and the elastic member is a torsion spring wound around the shaft. There may be.

(14) In the plug door device according to (12) above, the restraint member is rotatably provided about an axis extending in the height direction of the vehicle, and the elastic member is in a direction intersecting the axis. One end of the compression spring is connected to the guide rail, the other end of the compression spring is connected to the restraining member, and the central axis of the compression spring is the same. When the moving member moves in the non-constrained position, the central axis is located on the side opposite to the closed direction from the boundary position where the central axis overlaps with the axis when viewed from the height direction, and the moving member is constrained. When it is located at the position, it may be located closer to the closed direction than the boundary position when viewed from the height direction.

(15) In the plug door device according to any one of (1) to (14) above, the plug door device moves integrally with the door by the driving force from the drive source, and the guide rail is opened and closed when the door is opened and closed. A second moving member provided apart from the moving member so as not to come into contact with the door is further provided, and the restraining member is inclined toward the closing direction when viewed from the height direction of the vehicle and the door. It may have a restraint wall that restrains the second moving member in the fully closed position.

(16) The plug door device according to the aspect of the present invention has a guide rail that defines an opening / closing path of a door for opening / closing a vehicle entrance / exit, a drive source for moving the door, and a drive from the drive source. A rotating body that moves integrally with the door by force and rolls along the opening / closing path while being guided by the guide rail when the door opens / closes, and the rotating body moves in the closing direction along the opening / closing path. A restraining member that moves from an unconstrained position that does not restrain the door to a restraining position that restrains the rotating body at the fully closed position of the door by being pushed by the rotating body, and a restraining member located at the restraining position. The rotating body is provided with a locking mechanism for holding the restraining member, and the rotating body can rotate around an axis extending in the height direction of the vehicle, and the shape of the rotating body is circular when viewed from the height direction. The restraining member is arranged so as to be offset in the height direction with respect to the guide rail, and the restraining member includes a first arm and a second arm sequentially arranged in the closing direction, and the restraining member is provided. Is located in the non-constrained position, the first arm does not cross the opening / closing path, the second arm crosses the opening / closing path, and the restraining member is located in the restraining position. The first arm and the second arm cross the opening / closing path, and the opening / closing path includes a straight portion along the front-rear direction of the vehicle and an inclined portion inclined with respect to the straight portion, and the second arm. The arm is perpendicular to the tilted portion when the restraining member is located in the non-constrained position and to the first surface perpendicular to the tilted portion when the restraining member is located in the restrained position. The restraining member includes a second surface, and the restraining member is rotatably provided about an axis extending in the height direction, and the restraining member is opposite to a portion that sandwiches the shaft and restrains the rotating body. A held portion provided on the side and held by the lock mechanism is provided, and the held portion is integrally formed of the same member as the restraining member, and the restraining member is provided in the restraining member at the restraining position. A push member that pushes the switch when located in is provided, further provided with a torsion spring that is wound around the shaft and exerts an elastic force on the restraining member so that the restraining member is held in the non-constraining position. A second moving member is further provided so as to move integrally with the door by a driving force from the driving source and to be separated from the rotating body so as not to come into contact with the guide rail when the door opens and closes. The restraining member has a restraining wall that is inclined toward the closing direction when viewed from the height direction and restrains the second moving member at the fully closed position of the door.

According to this configuration, the restraint member can be moved to the restraint position (the position where the door is locked in the fully closed position) by utilizing the driving force of the drive source (door drive source) for moving the door. Therefore, an actuator other than the door drive source is not required to move the restraining member. Therefore, energy saving can be achieved.
In addition, it is equipped with a rotating body that rolls along the opening / closing path while being guided by a guide rail when the door opens and closes, and the rotating body can rotate around an axis extending in the height direction of the vehicle, and the shape of the rotating body is high. Since the rotating body has a circular shape when viewed from the vertical direction, the rotating body reduces friction with respect to the guide rail, so that the rotating body can be smoothly moved from the non-constrained position to the restrained position.
In addition, since the restraint member is rotatably provided around an axis extending in the height direction of the vehicle, no space is required in the height direction to allow the restraint member to rotate, so that the height is high. It can be miniaturized in the direction.
In addition, the restraining member is provided on the side opposite to the portion that restrains the rotating body across the shaft, and is provided with a held portion that is held by the lock mechanism, so that the held portion and the rotating body are restrained. Since they are separated from each other across the shaft, a sufficient space for arranging the lock mechanism can be taken, and the degree of freedom in arranging the lock mechanism is improved.
In addition, since the held portion is integrally formed of the same member as the restraining member, the number of parts is increased as compared with the case where the held member held by the lock mechanism is provided separately from the restraining member. It is possible to reduce the cost and reduce the cost.
In addition, since the restraint member is provided with a push member that pushes the switch when the restraint member is located at the restraint position, the position where the restraint member pushes the switch can be adjusted according to the installation position of the push member. ..
In addition, it is provided with a second moving member that moves integrally with the door by the driving force from the drive source and is provided apart from the rotating body so as not to come into contact with the guide rail when the door opens and closes. Has a restraining wall that inclines toward the closing direction when viewed from the height direction of the vehicle and restrains the second moving member at the fully closed position of the door, so that even if the rotating body comes off, the restraining wall As a result, the second moving member is restrained, so that the door can be held in the locked state.
In addition, since the restraining member is arranged so as to be offset from the guide rail in the height direction of the vehicle, the shape of the guide rail can be freely formed, so that the degree of freedom in designing the guide rail is improved.
In addition, the restraining member includes a first arm and a second arm arranged in order in the closing direction, and when the restraining member is located in the non-constraining position, the first arm does not cross the opening / closing path and the second arm is second. By crossing the opening / closing path, the arm can move the rotating body from the non-constraining position to the restraining position by pushing the second arm by the rotating body when the restraining member is located in the non-constraining position. .. On the other hand, when the restraint member is located at the restraint position, the first arm and the second arm cross the opening / closing path, and when the restraint member is located at the restraint position, the rotating body is formed by the first arm and the second arm. Can be restrained.
In addition, the opening / closing path includes a straight portion along the front-rear direction of the vehicle and an inclined portion inclined with respect to the straight portion, and the second arm is set to the inclined portion when the restraining member is located in the non-constraining position. When the restraining member is located in the non-constraining position by including the first surface perpendicular to the object, the first surface of the second arm is pushed by the rotating body to move the rotating body from the non-constraining position to the restraining position. Can be moved towards. On the other hand, the second arm includes a second surface perpendicular to the inclined portion when the restraint member is located at the restraint position, and the second arm of the second arm when the restraint member is located at the restraint position. The surface of the rotating body can be restrained.
In addition, by providing a torsion spring that applies an elastic force to the restraint member so that the restraint member is held in the non-constrained position, the restraint member can be kept in the non-restraint position by utilizing the elastic force of the torsion spring. Therefore, the rotating body can smoothly push the restraining member located at the non-constraining position.
In addition, since the torsion spring is wound around the shaft, it is possible to prevent the arrangement space of the torsion spring from becoming excessive.

(17) The plug door device according to the aspect of the present invention has a guide rail that defines an opening / closing path of a door for opening / closing the entrance / exit of a vehicle, a drive source for moving the door, and a drive from the drive source. A rotating body that moves integrally with the door by force and rolls along the opening / closing path while being guided by the guide rail when the door opens / closes, and the rotating body moves in the closing direction along the opening / closing path. A restraining member that moves from an unconstrained position that does not restrain the door to a restraining position that restrains the rotating body at the fully closed position of the door and a restraining member that is located at the restraining position by being pushed by the rotating body. The rotating body is provided with a locking mechanism for holding the restraining member, and the rotating body can be rotated around an axis extending in the height direction of the vehicle, and the shape of the rotating body is circular when viewed from the height direction. The restraining member is arranged so as to be offset in the height direction with respect to the guide rail, and the restraining member includes a first arm and a second arm sequentially arranged in the closing direction, and the restraining member is provided. Is located in the non-constrained position, the first arm does not cross the opening / closing path, the second arm crosses the opening / closing path, and the restraining member is located in the restraining position. The first arm and the second arm cross the opening / closing path, and the opening / closing path includes a straight portion along the front-rear direction of the vehicle and an inclined portion inclined with respect to the straight portion, and the second arm. The arm is perpendicular to the tilted portion when the restraining member is located in the non-constrained position and to the first surface perpendicular to the tilted portion when the restraining member is located in the restrained position. The restraining member includes a second surface, and the restraining member is rotatably provided about an axis extending in the height direction, and the restraining member is opposite to a portion that sandwiches the shaft and restrains the rotating body. A held portion provided on the side and held by the lock mechanism is provided, and the held portion is integrally formed of the same member as the restraining member, and the restraining member is provided in the restraining member at the restraining position. A pushing member for pushing a switch when located at is further provided with a compression spring provided to be compressible in a direction intersecting the axis, one end of the compression spring being connected to the guide rail and said to be said. The other end of the compression spring is connected to the restraining member, and the central axis of the compression spring overlaps the axis when the rotating body moves in the unconstrained position when viewed from the height direction. The closed position rather than the boundary position It is located on the opposite side of the direction, and when the rotating body is located at the restraint position, it is located on the closed direction side of the boundary position when viewed from the height direction, and is driven from the drive source. A second moving member is further provided so as to move integrally with the door by force and to be separated from the rotating body so as not to come into contact with the guide rail when the door opens and closes. It has a restraining wall that inclines toward the closing direction when viewed from the height direction and restrains the second moving member at the fully closed position of the door.

According to this configuration, the restraint member can be moved to the restraint position (the position where the door is locked in the fully closed position) by utilizing the driving force of the drive source (door drive source) for moving the door. Therefore, an actuator other than the door drive source is not required to move the restraining member. Therefore, energy saving can be achieved.
In addition, it is equipped with a rotating body that rolls along the opening / closing path while being guided by a guide rail when the door opens and closes, and the rotating body can rotate around an axis extending in the height direction of the vehicle, and the shape of the rotating body is high. Since the rotating body has a circular shape when viewed from the vertical direction, the rotating body reduces friction with respect to the guide rail, so that the rotating body can be smoothly moved from the non-constrained position to the restrained position.
In addition, since the restraint member is rotatably provided around an axis extending in the height direction of the vehicle, no space is required in the height direction to allow the restraint member to rotate, so that the height is high. It can be miniaturized in the direction.
In addition, the restraining member is provided on the side opposite to the portion that restrains the rotating body across the shaft, and is provided with a held portion that is held by the lock mechanism, so that the held portion and the rotating body are restrained. Since they are separated from each other across the shaft, a sufficient space for arranging the lock mechanism can be taken, and the degree of freedom in arranging the lock mechanism is improved.
In addition, since the held portion is integrally formed of the same member as the restraining member, the number of parts is increased as compared with the case where the held member held by the lock mechanism is provided separately from the restraining member. It is possible to reduce the cost and reduce the cost.
In addition, since the restraint member is provided with a push member that pushes the switch when the restraint member is located at the restraint position, the position where the restraint member pushes the switch can be adjusted according to the installation position of the push member. ..
In addition, it is provided with a second moving member that moves integrally with the door by the driving force from the drive source and is provided apart from the rotating body so as not to come into contact with the guide rail when the door opens and closes. Has a restraining wall that inclines toward the closing direction when viewed from the height direction of the vehicle and restrains the second moving member at the fully closed position of the door, so that even if the rotating body comes off, the restraining wall As a result, the second moving member is restrained, so that the door can be held in the locked state.
In addition, since the restraining member is arranged so as to be offset from the guide rail in the height direction of the vehicle, the shape of the guide rail can be freely formed, so that the degree of freedom in designing the guide rail is improved.
In addition, the restraining member includes a first arm and a second arm arranged in order in the closing direction, and when the restraining member is located in the non-constraining position, the first arm does not cross the opening / closing path and the second arm is second. By crossing the opening / closing path, the arm can move the rotating body from the non-constraining position to the restraining position by pushing the second arm by the rotating body when the restraining member is located in the non-constraining position. .. On the other hand, when the restraint member is located at the restraint position, the first arm and the second arm cross the opening / closing path, and when the restraint member is located at the restraint position, the rotating body is formed by the first arm and the second arm. Can be restrained.
In addition, the opening / closing path includes a straight portion along the front-rear direction of the vehicle and an inclined portion inclined with respect to the straight portion, and the second arm is set to the inclined portion when the restraining member is located in the non-constraining position. When the restraining member is located in the non-constraining position by including the first surface perpendicular to the object, the first surface of the second arm is pushed by the rotating body to move the rotating body from the non-constraining position to the restraining position. Can be moved towards. On the other hand, the second arm includes a second surface perpendicular to the inclined portion when the restraint member is located at the restraint position, and the second arm of the second arm when the restraint member is located at the restraint position. The surface of the rotating body can be restrained.
In addition, it comprises a compression spring that is compressible in a direction intersecting the axis, with one end of the compression spring connected to a guide rail and the other end of the compression spring connected to a restraint member of the compression spring. When the rotating body moves in the unconstrained position, the central axis is located on the side opposite to the closed direction from the boundary position where the central axis overlaps the axis when viewed from the height direction, and the rotating body is located in the restrained position. When doing so, the direction in which the spring force of the compression spring is applied to the restraining member can be changed depending on the moving position of the rotating body by being located on the side in the closing direction from the boundary position when viewed from the height direction.

(18) The plug door device according to the aspect of the present invention has a guide rail that defines an opening / closing path of a door for opening / closing a vehicle entrance / exit, a drive source for moving the door, and a drive from the drive source. A rotating body that moves integrally with the door by force and rolls along the opening / closing path while being guided by the guide rail when the door opens / closes, and the rotating body moves in the closing direction along the opening / closing path. A restraining member that moves from an unconstrained position that does not restrain the door to a restraining position that restrains the rotating body at the fully closed position of the door by being pushed by the rotating body, and is located at the restraining position. The rotating body is provided with a locking mechanism for holding the restraining member, and the rotating body can be rotated around an axis extending in the height direction of the vehicle, and the shape of the rotating body is circular when viewed from the height direction. At least a part of the restraint member is arranged within the height range of the guide rail, and the restraint member comes into contact with the rotating body at the non-constraint position and follows the opening / closing path. A guide wall for guiding the movement of the rotating body is provided, the restraining member is rotatably provided around an axis extending in the height direction, and the restraining member is a portion that restrains the rotating body across the shaft. A held portion is provided on the opposite side of the door and is held by the lock mechanism. The held portion is integrally formed of the same member as the restraining member, and the restraining member has the restraining member. A torsion spring that is provided with a push member that pushes the switch when located in the restraint position, is wound around the shaft, and applies an elastic force to the restraint member so that the restraint member is held in the non-constrained position. Further, a second moving member is provided so as to move integrally with the door by a driving force from the driving source and to be separated from the rotating body so as not to come into contact with the guide rail when the door opens and closes. Further, the restraining member has a restraining wall that is inclined toward the closing direction when viewed from the height direction and restrains the second moving member at the fully closed position of the door.

According to this configuration, the restraint member can be moved to the restraint position (the position where the door is locked in the fully closed position) by utilizing the driving force of the drive source (door drive source) for moving the door. Therefore, an actuator other than the door drive source is not required to move the restraining member. Therefore, energy saving can be achieved.
In addition, it is equipped with a rotating body that rolls along the opening / closing path while being guided by a guide rail when the door opens and closes, and the rotating body can rotate around an axis extending in the height direction of the vehicle, and the shape of the rotating body is high. Since the rotating body has a circular shape when viewed from the vertical direction, the rotating body reduces friction with respect to the guide rail, so that the rotating body can be smoothly moved from the non-constrained position to the restrained position.
In addition, since the restraint member is rotatably provided around an axis extending in the height direction of the vehicle, no space is required in the height direction to allow the restraint member to rotate, so that the height is high. It can be miniaturized in the direction.
In addition, the restraining member is provided on the side opposite to the portion that restrains the rotating body across the shaft, and is provided with a held portion that is held by the lock mechanism, so that the held portion and the rotating body are restrained. Since they are separated from each other across the shaft, a sufficient space for arranging the lock mechanism can be taken, and the degree of freedom in arranging the lock mechanism is improved.
In addition, since the held portion is integrally formed of the same member as the restraining member, the number of parts is increased as compared with the case where the held member held by the lock mechanism is provided separately from the restraining member. It is possible to reduce the cost and reduce the cost.
In addition, since the restraint member is provided with a push member that pushes the switch when the restraint member is located at the restraint position, the position where the restraint member pushes the switch can be adjusted according to the installation position of the push member. ..
In addition, it is provided with a second moving member that moves integrally with the door by the driving force from the drive source and is provided apart from the rotating body so as not to come into contact with the guide rail when the door opens and closes. Has a restraining wall that inclines toward the closing direction when viewed from the height direction of the vehicle and restrains the second moving member at the fully closed position of the door, so that even if the rotating body comes off, the restraining wall As a result, the second moving member is restrained, so that the door can be held in the locked state.
In addition, by providing a torsion spring that applies an elastic force to the restraint member so that the restraint member is held in the non-constrained position, the restraint member can be kept in the non-restraint position by utilizing the elastic force of the torsion spring. Therefore, the rotating body can smoothly push the restraining member located at the non-constraining position.
In addition, since the torsion spring is wound around the shaft, it is possible to prevent the arrangement space of the torsion spring from becoming excessive.
In addition, at least a part of the restraint member is arranged within the height range of the vehicle of the guide rail, so that the space in the height direction is not required for arranging the restraint member, and thus the height. It can be miniaturized in the direction.
In addition, the restraining member is provided with a guide wall that comes into contact with the rotating body at an unrestrained position and guides the movement of the rotating body along the opening / closing path, so that the rotating body is moved along the opening / closing path by the guide rail or the guide wall. Therefore, the rotating body can be smoothly moved from the non-constrained position to the restrained position.

According to the present invention, it is possible to provide a plug door device capable of saving energy.

It is a perspective view of the plug door device of 1st Embodiment. It is an enlarged view of the II part of FIG. It is a perspective view of the periphery including the rotating body and the support of 1st Embodiment. It is operation explanatory drawing of the restraint member of 1st Embodiment. It is a bottom view of the plug door device of the 2nd Embodiment. It is a perspective view of the plug door device of 3rd Embodiment. It is a bottom view of the plug door device of 3rd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiment, an example will be described in which a pair of double-drawn doors for opening and closing the entrance / exit of a railway vehicle (vehicle) is provided as a plug door device. In the following description, expressions indicating relative or absolute arrangements such as "parallel", "orthogonal", "center", and "coaxial" not only strictly mean such arrangements, but also. It also includes the state of relative displacement with tolerances and angles and distances to the extent that the same function can be obtained. In the drawings used in the following description, the scale of each member is appropriately changed in order to make each member recognizable.

<First Embodiment>
FIG. 1 is a perspective view of the plug door device of the first embodiment. FIG. 2 is an enlarged view of the II portion of FIG. FIG. 3 is a perspective view of the periphery including the rotating body and the support of the first embodiment.
As shown in FIG. 1, the plug door device 1 includes a pair of doors 2, a fixed base 3, a slide base 4, a guide rail 5 (see FIG. 2), a drive source 6, a restraining member 7, and a locking mechanism. 8 and. In FIG. 1, the pair of doors 2 are shown by a two-dot chain line. FIG. 1 shows a state in which the door 2 is located at the fully closed position.

In the following description, the X, Y, and Z orthogonal coordinate systems 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 the height direction (gravity direction) of the vehicle orthogonal to the X direction and the Y direction. In the following description, of the X direction, the Y direction, and the Z direction, the arrow side in the figure will be referred to as a plus (+) side, and the side opposite to the arrow will be referred to as a minus (−) side. The + Y side corresponds to the outside in the width direction, and the −Y side corresponds to the inside 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 includes a swing arm mechanism (not shown) that guides the movement of the door 2 in the width direction and the front-rear direction. The plug door device 1 supports the door 2 so that the outer surface of the side wall of the vehicle body and the outer surface of the door 2 are flush with each other when the door 2 is in 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 attached to the slide base 4. The door hanger 11 is supported by the slide base 4 in a state of being movable in the front-rear direction with respect to the slide base 4.

The fixed base 3 is fixed to the vehicle body of the vehicle. The vehicle body is a frame that forms the skeleton of the vehicle. The fixed base 3 is provided above the entrance / exit 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 / exit 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 the driving force from the drive source 6, thereby moving the door 2 in the width direction. The slide base 4 is provided below the fixed base 3. The slide base 4 extends in the front-rear direction along the upper end edge of the entrance / exit 15. Both ends of the slide base 4 in the front-rear direction are movable in the width direction along the rail base 9.

As shown in FIG. 2, the guide rail 5 defines an opening / closing path 20 of the door 2 for opening / closing the entrance / exit 15 (see FIG. 1) of the vehicle. The guide rail 5 is provided above the entrance / exit 15. The guide rail 5 is supported by the fixed base 3 (see FIG. 1). The guide rail 5 is attached to the fixed base 3 by fastening members such as a plurality of bolts.

The opening / closing path 20 includes a straight line portion 21 along the front-rear direction and an inclined portion 22 inclined with respect to the straight line portion 21. The connecting portion 23 between the straight portion 21 and the inclined portion 22 is curved in an arc shape. In FIG. 2, a part of the straight line portion 21 is shown by a two-dot chain line.

As shown in FIG. 1, the drive source 6 outputs a driving force for moving the door 2. For example, the drive source 6 is a motor. The output shaft of the motor rotates around an axis along the front-rear direction. For example, the output shaft of the motor can rotate (forward and reverse rotation) on one side and the other side around the axis along the front-rear direction. The drive source 6 is connected to a movable power cable 29, a so-called cable carrier (registered trademark). The drive source 6 is supported by the slide base 4 via the power transmission mechanism 30. The drive source 6 is movable in the width direction as the slide base 4 moves 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 drive source 6, and an endless belt 32 that extends in the front-rear direction. The power conversion mechanism 31 converts the rotation around the axis along the front-rear direction of the output shaft of the motor into the rotation around the axis along the width direction. The power conversion mechanism 31 includes a gear 33 that rotates around an axis along the width direction. A pulley 34 that can rotate around an axis parallel to the rotation axis of the gear 33 (an axis along the width direction) is provided at a position separated from the gear 33 in the front-rear direction.

The belt 32 is bridged between the gear 33 and the pulley 34. The belt 32 moves (circulates) around the gear 33 and the pulley 34 in conjunction with the rotation of the gear 33. A door hanger 11 is connected to the belt 32. The door hanger 11 moves in the front-rear direction with the movement of the belt 32. A connecting member 35 that moves with the movement of the belt 32 is attached to the belt 32. As shown in FIG. 3, a rotating body 36 (moving member) and a support 37 (second moving member) are supported by the connecting member 35.

For example, the rotating body 36 is a roller that rolls along the opening / closing path 20. The rotating body 36 moves integrally with the door 2 (see FIG. 1) by the driving force from the drive source 6 (see FIG. 1). The rotating body 36 rolls along the opening / closing path 20 while being guided by the guide rail 5 when the door 2 opens / closes. The rotating body 36 is rotatably connected to the connecting member 35 around an axis extending in the height direction. The shape of the rotating body 36 is formed in a circular shape when viewed from the height direction.

Of the pair of doors 2, the door 2 on the −X side is connected to the upper portion of the belt 32 together with the connecting member 35 via the door hanger 11. On the other hand, the door 2 on the + X side is connected to the lower portion of the belt 32 via the door hanger 11. As described above, since the belt 32 is bridged between the gear 33 and the pulley 34 which are separated from each other in the front-rear direction, the upper portion and the lower portion of the belt 32 move in opposite directions in the front-rear direction. do. Therefore, when the belt 32 moves, the door 2 and the connecting member 35 on the −X side and the door 2 on the + X side move in opposite directions in the front-rear direction.

In the pair of doors 2, the driving force from the drive source 6 is transmitted to the belt 32 from the fully closed position (position where the outer surface of the side wall of the vehicle body and the outer surface of the door 2 are flush with each other) shown in FIG. By moving the connected door hanger 11 and the connecting member 35, the door hanger 11 and the connecting member 35 move to the fully open position. Here, the fully open position means a position where the pair of doors 2 opens (fully opens) the entrance / exit 15 and the pair of doors 2 goes out of the vehicle. In the example of FIG. 1, the door 2 on the −X side first moves outward in the width direction (specifically, diagonally including the width direction) from the fully closed position, and then moves straight in the −X direction to fully open. Reach the position. On the other hand, the door 2 on the + X side first moves outward in the width direction (specifically, diagonally including the width direction) from the fully closed position, and then moves straight in the + X direction to reach the fully open position.

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

For example, the support 37 is a pin extending in the height direction. The support 37 extends upward from the connecting member 35. The support 37 moves integrally with the door 2 (see FIG. 1) by the driving force from the drive source 6 (see FIG. 1). The support 37 is provided apart from the rotating body 36 so as not to come into contact with the guide rail 5 when the door 2 opens and closes.

The restraining member 7 restrains the rotating body 36 at the fully closed position of the door 2 (see FIG. 1). The restraint member 7 is arranged so as to be offset in the height direction with respect to the guide rail 5. The restraint member 7 is provided below the guide rail 5. The restraint member 7 is rotatably provided about a shaft 39 extending in the height direction.

The upper portion of the shaft 39 is fixed to the guide rail 5. As shown in FIG. 2, a torsion spring 40 (elastic member) is wound around the shaft 39. Hereinafter, the position where the door is not restrained is referred to as a “non-constrained position”, and the position where the rotating body 36 is restrained at the fully closed position of the door is referred to as a “constrained position”. The restraint position is the same as the fully closed position of the door. The position of the restraint member 7 shown in FIGS. 1 to 3 and the position of the restraint member 7 shown by the solid line in FIG. 4 indicate the restraint position. The position of the restraint member 7 shown by the alternate long and short dash line in FIG. 4 indicates an unconstrained position. The torsion spring 40 applies an elastic force to the restraining member 7 so that the restraining member 7 is held in the non-constraining position (the position of the alternate long and short dash line in FIG. 4).

The restraining member 7 is held in an unconstrained position (position of the alternate long and short dash line in FIG. 4) by the elastic force from the torsion spring 40 in a state where no external force acts. Hereinafter, the direction in which the door 2 closes is referred to as a "closing direction".

Here, the closing direction means the moving direction from the fully open position to the fully closed position of the door 2. When the door 2 is closed from the fully open position, the door 2 first moves straight along the front-rear direction, and then moves inward in the width direction (specifically, diagonally including the width direction). In this way, the moving direction of the door 2 changes between the early stage and the final stage of the movement in the closing direction. In each figure, the closing direction of the door on the −X side of the pair of doors 2 is the closing direction, which is indicated by the arrow Vc direction (specifically, the component along the front-rear direction of the closing direction).

The restraining member 7 is pushed by the rotating body 36 when the rotating body 36 moves in the closing direction Vc along the opening / closing path 20, so that the restraining member 7 is pushed from the non-constraining position (the position of the alternate long and short dash line in FIG. 4) to the restraining position (FIG. 4). Move to the position of the solid line of 4).

As shown in FIG. 2, the restraint member 7 includes a first arm 41 and a second arm 42 arranged in order in the closing direction Vc. The first arm 41 and the second arm 42 are integrally connected so as to form a U shape when viewed from the height direction. When the restraining member 7 is located at the non-constraining position (the position of the alternate long and short dash line in FIG. 4), the first arm 41 does not cross the opening / closing path 20, and the second arm 42 crosses the opening / closing path 20. When the restraint member 7 is located at the restraint position (the position of the solid line in FIG. 4), the first arm 41 and the second arm 42 cross the opening / closing path 20.

As shown in FIG. 4, when the restraining member 7 is located at the non-constraining position, the first arm 41 is arranged at a position avoiding the opening / closing path 20 (the position of the alternate long and short dash line in FIG. 4). When the restraining member 7 is located in the non-constraining position, the + Y side end of the first arm 41 is arranged on the −Y side of the opening / closing path 20. The first arm 41 has a restraining wall 43 that is inclined toward the closing direction Vc when viewed from the height direction when the restraining member 7 is located in the non-constraining position. The restraint wall 43 is a portion that restrains the support 37 (see FIG. 3) at the fully closed position of the door. The restraint wall 43 constitutes the inner surface of the groove 44 formed in the first arm 41.

The second arm 42 is arranged apart from the first arm 41 in the closing direction Vc. When the restraining member 7 is located at the non-constraining position (the position of the alternate long and short dash line in FIG. 4), the second arm 42 has a first surface 45 perpendicular to the inclined portion 22 and the restraining member 7 at the restraining position (restricted position). When it is located at the position of the solid line in FIG. 4, it has a second surface 46 perpendicular to the inclined portion 22.

The first surface 45 is connected so as to be inclined in the + X direction with respect to the second surface 46 when viewed from the height direction. The first surface 45 crosses the + Y side portion (the portion that the second surface 46 does not cross) of the inclined portion 22 when the restraining member 7 is located at the non-constraining position (the position of the alternate long and short dash line in FIG. 4). do. The first surface 45 does not cross the inclined portion 22 when the restraining member 7 is located at the restraining position (the position of the solid line in FIG. 4). When the restraining member 7 is located at the restraining position, the first surface 45 is arranged on the + X side of the inclined portion 22.

The second surface 46 constitutes the inner surface of the U-shaped opening 47 formed in the restraint member 7. The second surface 46 covers the portion on the −Y side of the inclined portion 22 (the portion that the first surface 45 does not cross) when the restraining member 7 is located at the non-constraining position (the position of the alternate long and short dash line in FIG. 4). cross. The second surface 46 crosses the inclined portion 22 as a whole when the restraining member 7 is located at the restraining position (the position of the solid line in FIG. 4).

The restraint member 7 includes a held portion 48 held by the lock mechanism 8. The held portion 48 is provided on the side opposite to the portion that restrains the rotating body 36 with the shaft 39 interposed therebetween (for example, the portion where the second arm 42 is provided). The held portion 48 extends along a direction orthogonal to the axis 39 when viewed from the height direction. When the restraint member 7 is located at the restraint position (the position of the solid line in FIG. 4), the held portion 48 extends from the portion closer to the shaft 39 in the −X direction. The held portion 48 is integrally formed of the same member as the restraining member 7.

The restraint member 7 is provided with a push member 50 that pushes the switch 51 when the restraint member 7 is located at the restraint position. For example, the switch 51 is a switch that detects that the door is locked in the fully closed position. The pushing member 50 is provided on the side of the shaft 39 in the closing direction Vc. The pushing member 50 is provided on the side opposite to the held portion 48 with the shaft 39 interposed therebetween.

The push member 50 is detachably attached to the restraint member 7. The push member 50 has an elongated hole 52 along the rotation direction of the restraint member 7 (circumferential direction of the shaft 39). The push member 50 is attached to the restraint member 7 by a plurality of bolts 53 (for example, two in this embodiment) arranged along the elongated hole 52.

The lock mechanism 8 holds the restraint member 7 located at the restraint position (the position of the solid line in FIG. 4). As shown in FIG. 2, the lock mechanism 8 includes a lever 59 that swings by a driving force from a driving source 6 (see FIG. 1). The lever 59 is connected to the drive source 6 via a link mechanism 60 including an arm 61 and a rod 62 (see FIG. 1).

When the restraining member 7 moves to the restraining position, the lever 59 is pushed by the held portion 48 (specifically, the portion extending upward from the tip end portion of the held portion 48) of the restraining member 7, and the lever 59 is moved by the arrow in FIG. Move in the Lm direction. Then, the internal latch (not shown) of the lock mechanism 8 is locked, and the held portion 48 of the restraining member 7 is supported by the lever 59. As a result, the rotating body 36 and the support 37 are restrained by the restraining member 7 at the fully closed position of the door, and the door is locked (locked state).

On the other hand, when the arm 61 is pulled by the driving force from the drive source 6, the latch inside the lock mechanism 8 is unlocked, and the lever 59 moves in the direction opposite to the arrow Lm direction in FIG. Then, the held portion 48 of the restraining member 7 is released from the support by the lever 59. As a result, the restraining member 7 returns to the non-constraining position (the position of the alternate long and short dash line in FIG. 4) due to the elastic force (restoring force) of the torsion spring 40. As a result, the restraint of the rotating body 36 and the support 37 by the restraining member 7 is released, and the door is unlocked (unlocked state).

FIG. 4 is an operation explanatory view of the restraint member 7 of the first embodiment. In FIG. 4, the restraint member 7 located at the restrained position is shown by a solid line, and the restraint member 7 located at the non-constrained position is shown by a two-dot chain line.
An elastic force from the torsion spring 40 is constantly applied to the restraining member 7. Therefore, in a state where no external force acts on the restraint member 7, the restraint member 7 is held at the non-constrained position (the position of the alternate long and short dash line in FIG. 4). When the restraining member 7 is located in the non-constraining position, the rotating body 36 and the support 37 are made movable integrally with the door by the driving force from the driving source 6 (see FIG. 1).

The rotating body 36 (see FIG. 3) rolls along the opening / closing path 20 while being guided by the guide rail 5 when the door is opened / closed. Specifically, when the rotating body 36 closes the door 2 from the fully open position, it first moves straight along the straight line portion 21 (see FIG. 2), but then moves inward in the width direction along the inclined portion 22. Move (specifically, diagonally including the width direction). In this way, the moving direction of the rotating body 36 changes between the early stage and the final stage of the movement in the closing direction.
On the other hand, the support 37 (see FIG. 3) moves along a path separated below the opening / closing path 20 so as not to come into contact with the guide rail 5 when the door opens / closes.

When the rotating body 36 moves in the closing direction Vc along the opening / closing path 20, the rotating body 36 first comes into contact with the second arm 42 (the second arm 42 of the alternate long and short dash line in FIG. 4) that crosses the opening / closing path 20. Then, when the rotating body 36 further moves in the closing direction Vc along the opening / closing direction, the rotating body 36 pushes the second arm 42 toward the closing direction Vc against the elastic force of the torsion spring 40. When the second arm 42 is pushed in the closing direction Vc by the rotating body 36, the restraining member 7 moves (rotates) from the non-constraining position (the position of the alternate long and short dash line in FIG. 4) to the restraining position (the position of the solid line in FIG. 4). )do.

When the restraint member 7 moves to the restraint position (the position of the solid line in FIG. 4), the lever 59 is pushed by the held portion 48 of the restraint member 7. As a result, the lever 59 moves in the direction of the arrow Lm in FIG. Then, the latch inside the lock mechanism 8 is locked. By locking the latch, the locking mechanism 8 holds the held portion 48 of the restraining member 7 located at the fully closed position (constraining position) of the door by the lever 59 (see FIG. 2).

When the restraint member 7 is located at the restraint position, each of the first arm 41 and the second arm 42 crosses the opening / closing path 20. As shown in FIG. 3, when the restraint member 7 is located at the restraint position, the first arm 41 causes the rotating body 36 and the support 37 to move along the opening / closing path 20 in the direction opposite to the closing direction Vc. regulate. The second arm 42 restricts the rotating body 36 from further moving in the arrow Vc direction along the opening / closing direction when the restraining member 7 is located at the restraining position.
The restraint wall 43 of the first arm 41 restricts the support 37 from moving in the direction opposite to the arrow Vc when the restraint member 7 is located at the restraint position.

In this way, the rotating body 36 and the support 37 are restrained by the restraining member 7 at the fully closed position of the door. The door is locked (locked state) by restraining the rotating body 36 and the support 37 by the restraining member 7. When the restraint member 7 is located at the restraint position, the switch 51 is pushed by the push member 50 (see FIG. 4). As a result, it is detected that the door is locked in the fully closed position.

On the other hand, when the door is changed from the locked state to the unlocked state, the arm 61 (see FIG. 2) is pulled by the driving force from the driving source 6. Then, the latch inside the lock mechanism 8 is unlocked, and the lever 59 moves in the direction opposite to the arrow Lm direction in FIG. Then, the held portion 48 of the restraining member 7 is released from the support by the lever 59. As a result, the restraining member 7 returns to the non-constraining position (the position of the alternate long and short dash line in FIG. 4) due to the elastic force (restoring force) of the torsion spring 40. The rotating body 36 and the support 37 (see FIG. 3) can move in the direction opposite to the closing direction Vc along the opening / closing path 20 by releasing the restraint by the restraining member 7. As a result, the door is unlocked (unlocked state).

As described above, the plug door device 1 according to the present embodiment has a guide rail 5 that defines an opening / closing path 20 of the door 2 for opening / closing the entrance / exit 15 of the vehicle, and a drive source 6 for moving the door 2. The rotating body 36, which moves integrally with the door 2 by the driving force from the driving source 6, and rolls along the opening / closing path 20 while being guided by the guide rail 5 when the door 2 opens / closes, and the rotating body 36 open / close. By being pushed by the rotating body 36 when moving in the closing direction Vc along the path 20, the door 2 moves from an unconstrained position that does not restrain the door 2 to a restrained position that restrains the rotating body 36 at the fully closed position of the door 2. A restraint member 7 and a lock mechanism 8 for holding the restraint member 7 located at the restraint position are provided. The restraint member 7 is arranged so as to be offset from the guide rail 5 in the height direction of the vehicle. The restraint member 7 includes a first arm 41 and a second arm 42 arranged in order in the closing direction Vc. When the restraining member 7 is located in the non-constraining position, the first arm 41 does not cross the opening / closing path 20, and the second arm 42 crosses the opening / closing path 20. When the restraint member 7 is located at the restraint position, the first arm 41 and the second arm 42 cross the opening / closing path 20. The opening / closing path 20 includes a straight portion 21 along the front-rear direction of the vehicle and an inclined portion 22 inclined with respect to the straight portion 21. The second arm 42 has a first surface 45 perpendicular to the inclined portion 22 when the restraining member 7 is located in the non-constrained position, and the second arm 42 with respect to the inclined portion 22 when the restraining member 7 is located in the restraining position. Includes a vertical second surface 46. The restraint member 7 is rotatably provided about a shaft 39 extending in the height direction of the vehicle. The restraining member 7 includes a held portion 48 that is provided on the side opposite to the portion that restrains the rotating body 36 with the shaft 39 interposed therebetween and is held by the lock mechanism 8. The held portion 48 is integrally formed of the same member as the restraining member 7. The restraint member 7 is provided with a push member 50 that pushes the switch 51 when the restraint member 7 is located at the restraint position. The plug door device 1 includes a torsion spring 40 that is wound around a shaft 39 and applies an elastic force to the restraining member 7 so that the restraining member 7 is held in an unconstrained position. The plug door device moves integrally with the door 2 by the driving force from the drive source 6, and the support 37 provided apart from the rotating body 36 so as not to come into contact with the guide rail 5 when the door 2 opens and closes. To prepare for. The restraining member 7 has a restraining wall 43 that is inclined toward the closing direction Vc when viewed from the height direction of the vehicle and restrains the support 37 at the fully closed position of the door.

According to this configuration, the restraint member 7 is moved to the restraint position (the position where the door 2 is locked in the fully closed position) by using the driving force of the drive source 6 (door drive source) for moving the door 2. Can be done. Therefore, an actuator other than the door drive source is not required to move the restraint member 7. Therefore, energy saving can be achieved. An actuator (not shown) for locking the movement of the restraint member 7 is required.
In addition, by providing the rotating body 36 that rolls along the opening / closing path 20 while being guided by the guide rail 5 when the door 2 opens and closes, the rotating body 36 reduces friction with the guide rail 5, so that the rotating body 36 is provided. Can be smoothly moved from the non-constrained position to the restrained position.
In addition, since the restraint member 7 is rotatably provided around a shaft 39 extending in the height direction of the vehicle, no space is required in the height direction to allow the restraint member 7 to rotate. , Can be miniaturized in the height direction.
In addition, the restraining member 7 is provided on the side opposite to the portion that restrains the rotating body 36 with the shaft 39 interposed therebetween, and is provided with the held portion 48 held by the lock mechanism 8 to rotate with the held portion 48. Since the portions that restrain the body 36 are separated from each other with the shaft 39 in between, a sufficient space for arranging the lock mechanism 8 can be secured, and the degree of freedom in arranging the lock mechanism 8 is improved.
In addition, since the held portion 48 is integrally formed of the same member as the restraining member 7, the held portion 48 is held by the lock mechanism 8 as compared with the case where the held member is provided separately from the restraining member 7. , The number of parts can be reduced and the cost can be reduced.
In addition, the restraint member 7 is provided with a push member 50 that pushes the switch 51 when the restraint member 7 is located at the restraint position, so that the restraint member 7 pushes the switch 51 depending on the installation position of the push member 50. The position can be adjusted.
In addition, the support 37 is provided so as to move integrally with the door by the driving force from the drive source 6 and to be separated from the rotating body 36 so as not to come into contact with the guide rail 5 when the door opens and closes. The restraining member 7 is inclined toward the closing direction Vc when viewed from the height direction of the vehicle, and has a restraining wall 43 that restrains the support 37 at the fully closed position of the door 2, so that the rotating body 36 may come off by any chance. Even in such a case, since the support 37 is restrained by the restraint wall 43, the door 2 can be held in the locked state.
In addition, since the restraining member 7 is arranged so as to be offset from the guide rail 5 in the height direction of the vehicle, the shape of the guide rail 5 can be freely formed, so that the degree of freedom in designing the guide rail 5 is high. Is improved.
In addition, the restraint member 7 includes a first arm 41 and a second arm 42 arranged in order in the closing direction Vc, and when the restraint member 7 is located in an unconstrained position, the first arm 41 crosses the opening / closing path 20. When the restraining member 7 is located in the non-constraining position by crossing the opening / closing path 20 by the second arm 42, the second arm 42 is pushed by the rotating body 36 to prevent the rotating body 36. It can be moved from the restraint position to the restraint position. On the other hand, when the restraint member 7 is located at the restraint position, the first arm 41 and the second arm 42 cross the opening / closing path 20, and when the restraint member 7 is located at the restraint position, the first arm 41 and the first arm 41 and the second arm 42 are crossed. The rotating body 36 can be restrained by the two arms 42.
In addition, the opening / closing path 20 includes a straight portion 21 along the front-rear direction of the vehicle and an inclined portion 22 inclined with respect to the straight portion 21, and the second arm 42 has a restraining member 7 located at an unconstrained position. In this case, the first surface 45 perpendicular to the inclined portion 22 is included, and when the restraining member 7 is located in the non-constraining position, the first surface 45 of the second arm 42 is pushed by the rotating body 36. By doing so, the rotating body 36 can be moved from the non-constrained position to the restrained position. On the other hand, the second arm 42 includes a second surface 46 perpendicular to the inclined portion 22 when the restraint member 7 is located at the restraint position, and the second arm 42 is second when the restraint member 7 is located at the restraint position. The rotating body 36 can be restrained by the second surface 46 of the two arms 42.
In addition, by providing a torsion spring 40 that applies an elastic force to the constraint member 7 so that the constraint member 7 is held in the unconstrained position, the constraint member 7 is not constrained by utilizing the elastic force of the torsion spring 40. Since the position can be maintained, the rotating body 36 can smoothly push the restraining member 7 located at the non-constraining position.
In addition, since the torsion spring 40 is wound around the shaft 39, it is possible to prevent the arrangement space of the torsion spring 40 from becoming excessive.

<Second Embodiment>
FIG. 5 is a bottom view of the plug door device 201 of the second embodiment. FIG. 5 is a bottom view corresponding to FIG. In FIG. 5, the restraint member 7 located at the restrained position is shown by a solid line, and the restraint member 7 located at the non-constrained position is shown by a two-dot chain line.
In the first embodiment described above, an example (see FIG. 2) in which the elastic member is a torsion spring 40 wound around the shaft 39 has been described, but the present invention is not limited to this. For example, as shown in FIG. 5, the elastic member may be a compression spring 240 provided so as to be compressible in a direction intersecting the shaft 39. In FIG. 5, the same configurations as those of the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 5, the guide rail 5 is provided with a first pin 241 extending in the height direction. The restraint member 7 is provided with a second pin 242 extending in parallel with the first pin 241. One end of the compression spring 240 is connected to the guide rail 5 via the first pin 241. The other end of the compression spring 240 is connected to the restraint member 7 via the second pin 242. Hereinafter, the position where the central axis Ac of the compression spring 240 overlaps with the center (axis center) of the axis 39 when viewed from the height direction is also referred to as “boundary position Bp”. The boundary position Bp corresponds to a virtual straight line passing through the center of the first pin 241 and the axis of the axis 39 when viewed from the height direction.

The central axis Ac of the compression spring 240 is closer to the boundary position Bp than the boundary position Bp when viewed from the height direction when the rotating body 36 moves in the unconstrained position (when the rotating body 36 can move along the opening / closing path 20). It is located on the opposite side of Vc (position of the alternate long and short dash line in FIG. 5). On the other hand, the central axis Ac of the compression spring 240 is located closer to the closing direction Vc than the boundary position Bp when viewed from the height direction when the rotating body 36 is located at the restraint position (the position of the solid line in FIG. 5).

According to this configuration, a compression spring 240 is provided so as to be compressible in a direction intersecting the shaft 39, one end of the compression spring 240 is connected to the guide rail 5, and the other end of the compression spring 240 is restrained. The central axis Ac of the compression spring 240 connected to the member 7 has a closing direction Vc rather than the boundary position Bp where the central axis Ac overlaps the axis 39 when viewed from the height direction when the rotating body 36 moves in the unconstrained position. Is located on the opposite side, and when the rotating body 36 is located in the restraint position, it is located on the side of the closing direction Vc from the boundary position Bp when viewed from the height direction, so that it is constrained by the moving position of the rotating body 36. The direction in which the spring force of the compression spring 240 is applied to the member 7 can be changed.

<Third Embodiment>
FIG. 6 is a perspective view of the plug door device of the third embodiment. FIG. 7 is a bottom view of the plug door device of the third embodiment. In FIG. 7, the restraint member 307 located at the restraint position is shown by a solid line, and the restraint member 307 located at the non-restraint position is shown by a two-dot chain line.
In the first embodiment described above, an example (see FIG. 2) in which the restraint member 7 is arranged so as to be displaced in the height direction with respect to the guide rail 5 has been described, but the present invention is not limited to this. For example, as shown in FIG. 6, at least a part of the restraint member 307 may be arranged within the height range of the guide rail 5. Here, the range in the height direction of the guide rail 5 means the range between the uppermost end and the lowermost end of the guide rail 5. In FIGS. 6 and 7, the same configurations as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 7, the restraining member 307 contacts the rotating body 36 at the non-constraining position (the position of the alternate long and short dash line in FIG. 7) and guides the movement of the rotating body 36 along the opening / closing path 20 with the guide wall 371. Be prepared. When the restraining member 307 is located in the non-constraining position, the guide wall 371 is curved in an arc shape along the inclined portion 22 of the opening / closing path 20 when viewed from the height direction.
On the other hand, the guide wall 371 restricts the rotating body 36 from moving along the opening / closing path 20 in the direction opposite to the closing direction Vc when the restraining member 307 is located at the restraining position (the position of the solid line in FIG. 7). Functions as a regulatory wall.

As shown in FIG. 6, the restraint member 307 includes a push portion 372 that pushes the switch 51 when the restraint member 307 is located at the restraint position. The push portion 372 is integrally formed of the same member as the restraint member 307.

The plug door device 301 of the present embodiment does not include the support 37 (see FIG. 3). Therefore, the restraint member 307 does not have a restraint wall 43 (see FIG. 3) that restrains the support 37.

According to this configuration, at least a part of the restraint member 307 is arranged within the height range of the vehicle of the guide rail 5, so that a space in the height direction is required for arranging the restraint member 307. Therefore, it can be miniaturized in the height direction.
In addition, the restraining member 307 is provided with a guide wall 371 that comes into contact with the rotating body 36 at an unrestrained position and guides the movement of the rotating body 36 along the opening / closing path 20, so that the rotating body is provided with the guide rail 5 or the guide wall 371. Since the 36 can be moved along the opening / closing path 20, the rotating body 36 can be smoothly moved from the non-constrained position to the restrained position.
In addition, the restraint member 307 includes a push portion 372 that pushes the switch 51 when the restraint member 307 is located at the restraint position, and the push portion 372 is integrally formed of the same member as the restraint member 307. As compared with the case where the pushing member for pushing the switch 51 is provided separately from the restraining member 307, the number of parts can be reduced and the cost can be reduced.
In addition, since the plug door device 301 is not provided with the support 37, the number of parts can be reduced and the cost can be reduced.
In addition, since the restraining member 307 does not have the restraining wall 43 that restrains the support 37, the shape of the restraining member 307 can be freely formed, so that the degree of freedom in designing the restraining member 307 is improved. In this embodiment, instead of the support 37, a member capable of holding the door 2 in the locked state may be provided even if the rotating body 36 should come off.

The portion of the restraint member 307 within the height range of the guide rail 5 of the third embodiment is not particularly limited, but from the viewpoint of miniaturization in the height direction, all of the restraint members 307 are the height of the guide rail 5. It is preferably arranged within the range in the vertical direction.

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

In the above-described embodiment, the restraint member 7 (307) has been described with reference to an example in which the restraint member 7 (307) is rotatably provided about a shaft 39 extending in the height direction of the vehicle, but the present invention is not limited to this. For example, the restraint member may be provided so as to be movable in each of the front-rear direction and the width direction of the vehicle. For example, the moving direction of the restraint member can be changed according to the required specifications.

In the above-described embodiment, there is an example (see FIG. 2) in which the restraining member 7 is provided on the side opposite to the portion that restrains the rotating body 36 with the shaft 39 interposed therebetween and is provided with the held portion 48 held by the lock mechanism 8. Although explained above, it is not limited to this. For example, the held portion 48 may be provided on the same side as the portion of the restraining member 7 that restrains the rotating body 36. For example, the installation position of the held portion 48 can be changed according to the required specifications.

In the above-described embodiment, an example (see FIG. 2) in which the held portion 48 is integrally formed of the same member as the restraining member 7 has been described, but the present invention is not limited to this. For example, the held portion 48 may be formed of a member different from the restraining member 7. For example, the mode of the held portion 48 can be changed according to the required specifications.

In the above-described embodiment, the restraint member 7 is provided with a push member 50 that pushes the switch 51 when the restraint member 7 is located at the restraint position (see FIG. 2), but the present invention is limited to this. do not have. For example, the restraining member 7 may not be provided with the pushing member 50. For example, the push member 50 may be provided on a member different from the restraint member 7. For example, the installation position of the push member 50 can be changed according to the required specifications.

In the above-described embodiment, an example (see FIG. 3) in which the moving member is a rotating body 36 that rolls along the opening / closing path 20 has been described, but the present invention is not limited to this. For example, the moving member does not have to be a rotating body 36 (roller). For example, the moving member may be a pin that is non-rotatably fixed to the connecting member 35. For example, the mode of the moving member can be changed according to the required specifications.

In the above-described embodiment, the plug door device has been described with reference to an example including an elastic member that applies an elastic force to the restraint member so that the restraint member is kept in an unconstrained position, but the present invention is not limited to this. For example, the plug door device may not be provided with elastic members. For example, the restraint member may be kept in an unconstrained position by the weight of the restraint member. For example, the restraint member may be kept in an unconstrained position due to the weight of the weight connected to the restraint member. For example, the mode of keeping the restraining member in the non-constraining position can be changed according to the required specifications.

In the above-described embodiment, the example in which the plug door device includes a pair of double-drawing doors for opening and closing the entrance / exit of a railroad vehicle has been described, but the present invention is not limited to this. For example, the plug door device may be provided in a vehicle other than a railroad vehicle. For example, the plug door device may include a single door.

In addition, it is possible to replace the components in the above-described embodiment with well-known components without departing from the spirit of the present invention. Further, each of the above-mentioned modification examples may be combined.

1,201,301 ... Plug door device, 2 ... Door, 5 ... Guide rail, 6 ... Drive source, 7,307 ... Restraint member, 8 ... Lock mechanism, 15 ... Entrance / exit, 20 ... Open / close path, 21 ... Straight part, 22 ... inclined portion, 36 ... rotating body (moving member), 39 ... shaft, 40 ... torsion spring (elastic member), 41 ... first arm, 42 ... second arm, 45 ... first surface, 46 ... second Surface, 48 ... held part, 50 ... pushing member, 51 ... switch, 240 ... compression spring (elastic member), 371 ... guide wall, Ac ... central axis, Bp ... boundary position, Vc ... closing direction

Claims (18)

A guide rail that defines the door opening / closing route for opening / closing the vehicle entrance / exit, and
A drive source for moving the door and
A moving member that moves integrally with the door by a driving force from the drive source and moves along the opening / closing path while being guided by the guide rail when the door opens / closes.
When the moving member moves in the closing direction along the opening / closing path, it is pushed by the moving member to restrain the moving member from an unconstrained position that does not restrain the door to a fully closed position of the door. The restraint member that moves to the position and
A locking mechanism for holding the restraining member located at the restraining position, and
A plug door device equipped with. The plug door device according to claim 1, wherein the restraining member is arranged so as to be displaced from the guide rail in the height direction of the vehicle. The restraining member includes a first arm and a second arm arranged in order in the closing direction.
When the restraining member is located in the non-constraining position, the first arm does not cross the opening / closing path, and the second arm crosses the opening / closing path.
The plug door device according to claim 2, wherein when the restraining member is located at the restraining position, the first arm and the second arm cross the opening / closing path. The opening / closing path includes a straight line portion along the front-rear direction of the vehicle and an inclined portion inclined with respect to the straight line portion.
The second arm has a first surface perpendicular to the inclined portion when the restraining member is located in the non-constrained position, and the second arm with respect to the inclined portion when the restraining member is located in the restrained position. The plug door device according to claim 3, comprising a second surface perpendicular to the surface. The plug door device according to claim 1, wherein at least a part of the restraining member is arranged within a range of the guide rail in the height direction of the vehicle. The plug door device according to claim 5, wherein the restraining member is provided with a guide wall that comes into contact with the moving member at the non-constraining position and guides the movement of the moving member along the opening / closing path. The plug door device according to any one of claims 1 to 6, wherein the restraining member is rotatably provided about an axis extending in the height direction of the vehicle. The plug door device according to claim 7, wherein the restraining member is provided on a side opposite to a portion that restrains the moving member with the shaft interposed therebetween, and is provided with a held portion held by the locking mechanism. The plug door device according to claim 8, wherein the held portion is integrally formed of the same member as the restraining member. The plug door device according to any one of claims 1 to 9, wherein the restraint member is provided with a push member that pushes a switch when the restraint member is located at the restraint position. The moving member is a rotating body that can rotate around an axis extending in the height direction of the vehicle and that rolls along the opening / closing path.
The plug door device according to any one of claims 1 to 10, wherein the shape of the rotating body is a circular shape when viewed from the height direction. The plug door device according to any one of claims 1 to 11, further comprising an elastic member that applies an elastic force to the restraining member so that the restraining member is held in the non-constraining position. The restraining member is rotatably provided around an axis extending in the height direction of the vehicle.
The plug door device according to claim 12, wherein the elastic member is a torsion spring wound around the shaft. The restraining member is rotatably provided around an axis extending in the height direction of the vehicle.
The elastic member is a compression spring provided so as to be compressible in a direction intersecting the axis.
One end of the compression spring is connected to the guide rail and
The other end of the compression spring is connected to the restraining member and
When the moving member moves in the unconstrained position, the central axis of the compression spring is located on the side opposite to the closing direction from the boundary position where the central axis overlaps the axis when viewed from the height direction. The plug door device according to claim 12, wherein when the moving member is located at the restraint position, the moving member is located on the closed direction side of the boundary position when viewed from the height direction. A second moving member is further provided so as to move integrally with the door by a driving force from the driving source and to be separated from the moving member so as not to come into contact with the guide rail when the door opens and closes. ,
Any of claims 1 to 14, wherein the restraining member is inclined toward the closing direction when viewed from the height direction of the vehicle, and has a restraining wall for restraining the second moving member at the fully closed position of the door. The plug door device according to one item. A guide rail that defines the door opening / closing route for opening / closing the vehicle entrance / exit, and
A drive source for moving the door and
A rotating body that moves integrally with the door by the driving force from the drive source and rolls along the opening / closing path while being guided by the guide rail when the door opens / closes.
When the rotating body moves in the closing direction along the opening / closing path, it is pushed by the rotating body to restrain the rotating body from an unconstrained position that does not restrain the door to a fully closed position of the door. The restraint member that moves to the position and
A lock mechanism for holding the restraint member located at the restraint position is provided.
The rotating body is made rotatable around an axis extending in the height direction of the vehicle.
The shape of the rotating body is a circular shape when viewed from the height direction.
The restraining member is arranged so as to be offset in the height direction with respect to the guide rail.
The restraining member includes a first arm and a second arm arranged in order in the closing direction.
When the restraint member is located in the non-constrained position, the first arm does not cross the opening / closing path, the second arm crosses the opening / closing path, and the restraint member is located in the restraint position. In the case, the first arm and the second arm cross the opening / closing path, and the first arm and the second arm cross the opening / closing path.
The opening / closing path includes a straight line portion along the front-rear direction of the vehicle and an inclined portion inclined with respect to the straight line portion.
The second arm has a first surface perpendicular to the inclined portion when the restraining member is located in the non-constraining position, and the second arm with respect to the inclined portion when the restraining member is located in the restraining position. Includes a second surface that is perpendicular to
The restraining member is provided so as to be rotatable about an axis extending in the height direction.
The restraining member includes a held portion that is provided on the side opposite to the portion that restrains the rotating body across the shaft and is held by the locking mechanism.
The held portion is integrally formed of the same member as the restraining member.
The restraint member is provided with a push member that pushes a switch when the restraint member is located at the restraint position.
Further provided with a torsion spring that is wound around the shaft and exerts an elastic force on the restraining member so that the restraining member is held in the non-constraining position.
A second moving member is further provided so as to move integrally with the door by the driving force from the driving source and to be separated from the rotating body so as not to come into contact with the guide rail when the door opens and closes. ,
The restraining member is a plug door device having a restraining wall that is inclined toward the closing direction when viewed from the height direction and restrains the second moving member at the fully closed position of the door. A guide rail that defines the door opening / closing route for opening / closing the vehicle entrance / exit, and
A drive source for moving the door and
A rotating body that moves integrally with the door by the driving force from the drive source and rolls along the opening / closing path while being guided by the guide rail when the door opens / closes.
When the rotating body moves in the closing direction along the opening / closing path, it is pushed by the rotating body to restrain the rotating body from an unconstrained position that does not restrain the door to a fully closed position of the door. The restraint member that moves to the position and
A lock mechanism for holding the restraint member located at the restraint position is provided.
The rotating body is made rotatable around an axis extending in the height direction of the vehicle.
The shape of the rotating body is a circular shape when viewed from the height direction.
The restraining member is arranged so as to be offset in the height direction with respect to the guide rail.
The restraining member includes a first arm and a second arm arranged in order in the closing direction.
When the restraint member is located in the non-constrained position, the first arm does not cross the opening / closing path, the second arm crosses the opening / closing path, and the restraint member is located in the restraint position. In the case, the first arm and the second arm cross the opening / closing path, and the first arm and the second arm cross the opening / closing path.
The opening / closing path includes a straight line portion along the front-rear direction of the vehicle and an inclined portion inclined with respect to the straight line portion.
The second arm has a first surface perpendicular to the inclined portion when the restraining member is located in the non-constraining position, and the second arm with respect to the inclined portion when the restraining member is located in the restraining position. Includes a second surface that is perpendicular to
The restraining member is provided so as to be rotatable about an axis extending in the height direction.
The restraining member includes a held portion that is provided on the side opposite to the portion that restrains the rotating body across the shaft and is held by the locking mechanism.
The held portion is integrally formed of the same member as the restraining member.
The restraint member is provided with a push member that pushes a switch when the restraint member is located at the restraint position.
Further, a compression spring provided so as to be compressible in a direction intersecting the axis is further provided.
One end of the compression spring is connected to the guide rail and
The other end of the compression spring is connected to the restraining member and
When the rotating body moves in the unconstrained position, the central axis of the compression spring is located on the side opposite to the closing direction from the boundary position where the central axis overlaps the axis when viewed from the height direction. Moreover, when the rotating body is located at the restraint position, it is located on the side in the closing direction with respect to the boundary position when viewed from the height direction.
A second moving member is further provided so as to move integrally with the door by the driving force from the driving source and to be separated from the rotating body so as not to come into contact with the guide rail when the door opens and closes. ,
The restraining member is a plug door device having a restraining wall that is inclined toward the closing direction when viewed from the height direction and restrains the second moving member at the fully closed position of the door. A guide rail that defines the door opening / closing route for opening / closing the vehicle entrance / exit, and
A drive source for moving the door and
A rotating body that moves integrally with the door by the driving force from the drive source and rolls along the opening / closing path while being guided by the guide rail when the door opens / closes.
When the rotating body moves in the closing direction along the opening / closing path, it is pushed by the rotating body to restrain the rotating body from an unconstrained position that does not restrain the door to a fully closed position of the door. The restraint member that moves to the position and
A lock mechanism for holding the restraint member located at the restraint position is provided.
The rotating body is made rotatable around an axis extending in the height direction of the vehicle.
The shape of the rotating body is a circular shape when viewed from the height direction.
At least a part of the restraining member is arranged within the height range of the guide rail.
The restraining member includes a guide wall that comes into contact with the rotating body at the non-constraining position and guides the movement of the rotating body along the opening / closing path.
The restraining member is provided so as to be rotatable about an axis extending in the height direction.
The restraining member includes a held portion that is provided on the side opposite to the portion that restrains the rotating body across the shaft and is held by the locking mechanism.
The held portion is integrally formed of the same member as the restraining member.
The restraint member is provided with a push member that pushes a switch when the restraint member is located at the restraint position.
Further provided with a torsion spring that is wound around the shaft and exerts an elastic force on the restraining member so that the restraining member is held in the non-constraining position.
A second moving member is further provided so as to move integrally with the door by the driving force from the driving source and to be separated from the rotating body so as not to come into contact with the guide rail when the door opens and closes. ,
The restraining member is a plug door device having a restraining wall that is inclined toward the closing direction when viewed from the height direction and restrains the second moving member at the fully closed position of the door.

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