WO2021181908A1

WO2021181908A1 - Door-closing device and method for attaching door-closing device

Info

Publication number: WO2021181908A1
Application number: PCT/JP2021/002179
Authority: WO
Inventors: 泉齋藤; 貴浩城間
Original assignee: 富士電機株式会社
Priority date: 2020-03-12
Filing date: 2021-01-22
Publication date: 2021-09-16
Also published as: CN114341455B; JP2021143521A; JP7371539B2; CN114341455A

Abstract

This door-closing device is provided with: a drive source; and a conversion section that comprises a pinion gear and a rack section which is disposed so as to engage with the pinion gear and which moves linearly due to rotation of the pinion gear, and that converts rotational drive force from the drive source into linear movement in an opening/closing direction of a door body. The conversion section is configured so that one end section of the conversion section in the opening/closing direction and/or another end section of the conversion section in the opening/closing direction can be separated.

Description

How to install the door closing device and the door closing device

The present invention relates to a door closing device and a method of mounting the door closing device, and more particularly to a method of mounting the door closing device and the door closing device including a conversion unit including a pinion gear and a rack portion.

Conventionally, a door closing device including a conversion unit including a pinion gear and a rack unit is known. Such a door closing device is disclosed in Japanese Patent Application Laid-Open No. 2007-297996.

The above-mentioned Japanese Patent Application Laid-Open No. 2007-297996 discloses a mobile body driving device (door closing device) including a pinion (pinion gear) and a direction changing device including a left rack and a right rack (rack portion). The mobile body drive device is installed at an internal installation position such as a vehicle. Specifically, the moving body drive device is fixed at an internal installation position of the vehicle or the like after being inserted through an insertion port provided in the vehicle or the like.

The mobile body driving device of Japanese Patent Application Laid-Open No. 2007-297996 includes a motor including an output shaft. The motor is configured to transmit the driving force for opening and closing the left and right doors to the direction changing device. The pinion is connected to the output shaft of the motor. The left and right racks are engaged to the pinion. The left rack and the left door are connected. The right rack and the right door are connected.

In the moving body driving device of JP-A-2007-297996, both the left rack and the right rack move in the opening direction by rotating the pinion in the clockwise direction by a motor. As a result, the left door moves in the opening direction as the left rack moves, and the right door moves in the opening direction as the right rack moves, so that the left door and the right door are in the open state. Further, in the mobile body driving device, both the left rack and the right rack move in the closed direction by rotating the pinion in the counterclockwise direction by the motor. As a result, the left door moves in the closing direction as the left rack moves, and the right door moves in the opening direction as the right rack moves, so that the left door and the right door are closed.

Japanese Unexamined Patent Publication No. 2007-297996

However, in the mobile body driving device of JP-A-2007-297996, in order to open and close the left door, the length of the left rack in the opening and closing direction is required by the moving distance of the left door. Further, in the direction changing device, since the left rack moves together with the left door, the left rack also moves by the moving distance of the left door. This point is the same for the right rack. That is, the direction changing device needs a dimension obtained by adding the length of the left rack in the opening / closing direction and the moving distance of the left rack. Therefore, in the mobile body driving device of JP-A-2007-297996, the direction changing device becomes large in the opening / closing direction. Here, the dimension of the insertion port opening / closing direction inserted when the moving body driving device is installed at the installation position is relatively small with respect to the direction changing device due to other structures (pillars or walls). In this case, it is considered that it becomes difficult for the moving body driving device to pass through the insertion slot. Therefore, in the mobile body driving device of JP-A-2007-297996, the dimension of the opening / closing direction of the insertion port into which the moving body driving device (door closing device) is inserted is set with respect to the direction changing device (converting unit). Even if it is relatively small, it is desired that the moving body driving device (door closing device) easily passes through the insertion slot and is installed at the installation position.

The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to compare the dimensions of the insertion slot into which the door closing device is inserted in the opening / closing direction with respect to the conversion unit. It is an object of the present invention to provide a door closing device and a method of mounting the door closing device so that the door closing device can be easily installed at an installation position by passing through an insertion port even when the size is small.

The door closing device according to the first aspect of the present invention includes a rotating shaft, is arranged so as to engage with a drive source for opening and closing the door body, a pinion gear connected to the rotating shaft, and the pinion gear, and by rotating the pinion gear. It includes a rack portion that moves linearly, and includes a conversion unit that converts the rotational driving force of the drive source into linear movement in the opening / closing direction of the door body. At least one of the portions with the other end in the opening / closing direction is separable.

In the conversion unit of the door closing device according to the first aspect of the present invention, at least one of one end in the opening / closing direction of the conversion unit and the other end in the opening / closing direction of the conversion unit are divided as described above. Configure to be possible. As a result, by dividing at least one end of the conversion unit in the opening / closing direction and at least one of the other ends, the dimensions of the conversion unit in the opening / closing direction can be adjusted when the door closing device is installed at the installation position. It can be made smaller temporarily. Therefore, even if the opening / closing dimension of the insertion slot inserted when the door closing device is installed at the installation position is relatively small with respect to the conversion part due to other structures (pillars or walls). The door closing device can pass through the insertion slot. Then, after the door closing device has passed through the insertion port, the door closing device is installed by passing at least one of one end and the other end of the divided conversion unit in the opening / closing direction through the insertion port. Can be installed in position. As a result, even if the opening / closing dimension of the insertion port into which the door closing device is inserted is relatively small with respect to the conversion unit, the door closing device can easily pass through the insertion port and be installed at the installation position. can.

Further, in the door closing device according to the first aspect, preferably, the conversion unit includes a housing for accommodating the pinion gear and the rack portion so as to be linearly movable, and the housing includes the housing main body and the housing. By dividing at least one end of the conversion unit in the opening / closing direction of the housing and the other end of the conversion unit in the opening / closing direction of the housing with respect to the housing body, the housing body It has an end-side housing portion that is provided separately from the portion. With this configuration, the housing having a larger opening / closing direction than the rack portion for accommodating the rack portion is temporarily divided into a housing main body portion and an end side housing portion. Since the dimension of the conversion unit in the opening / closing direction can be made smaller than that of the insertion slot, the door closing device can be easily passed through the insertion slot.

In this case, preferably, in the opening / closing direction, the housing main body portion has a length that allows the housing body portion to pass through the insertion opening inserted when the door closing device is installed at the installation position in a state where the end side housing portion is divided. have. With this configuration, it is possible to install the housing body, which has a larger opening and closing direction than the end-side housing, at the installation position through the insertion slot. Even when the size of the body in the opening / closing direction becomes large, the housing body and the end-side housing can be reliably passed through the insertion slot and installed at the installation position.

In a door closing device including a housing having an end side housing portion and a housing main body portion, preferably, a housing mounting member for fixing the housing is further provided, and the housing main body portion and the end side housing portion are further provided. The portion is fixed to the housing mounting member separately from the housing main body portion in a state where the end side housing portion is connected to the housing main body portion without being divided. With this configuration, the housing body and the end-side housing can be easily fixed in a connected state.

In the door closing device including the housing mounting member, preferably, the end-side housing portion has an internal space having a size capable of inserting the end-side portion of the housing body in the opening / closing direction into the inside, and the end portion. It has a mounting portion for fixing the side housing portion to the housing mounting member, and the end side housing portion has a mounting portion in a state where the end side portion of the housing body portion is inserted into the internal space. It is fixed to the housing mounting member via. With this configuration, the rack portion protrudes from the housing main body when the rack portion moves linearly due to the end side housing portion in which the end side portion of the housing main body is inserted into the internal space. Since the portion can be covered without a gap, it is possible to prevent foreign matter such as dust from adhering to the rack portion.

In a door closing device having the end-side housing portion having the mounting portion, preferably, the conversion portion further includes a screw member for fixing the mounting portion to the housing mounting member, and the mounting portion includes the head of the screw member. The size is such that the first hole portion having a size that allows the portion to be inserted and the leg portion of the screw member can be inserted and the head portion of the screw member cannot be inserted while communicating with the first hole portion. A long hole for fixing having a second hole portion having the hole is formed. With this configuration, after inserting the head of the screw member into the first hole of the long fixing hole, the mounting portion is slid to move and the leg of the screw member is inserted into the second hole. Since the screw member fixed to the housing mounting member engages with the second hole portion of the mounting portion, the mounting portion having the fixing elongated hole can be temporarily held by the screw member.

In the door closing device including the housing mounting member, preferably, the housing main body is fixed to the housing mounting member, and a plurality of fixing members arranged side by side in the opening / closing direction are further provided, and the end side is provided. The housing portion is arranged closer to the end portion side of the housing in the opening / closing direction than the fixing member arranged on the most end side in the opening / closing direction among the plurality of fixing members. With this configuration, the configuration other than the housing that configures the door closing device on the center side of the door closing device in the opening / closing direction is more than the fixing member arranged on the most end side in the opening / closing direction among the plurality of fixing members. When the elements are arranged, the components constituting the door closing device shall be collected and attached to the housing body, and the components constituting the door closing device shall not be attached to the end side housing. Can be done. Therefore, since the components other than the housing that constitutes the door closing device can be prevented from being divided, the components other than the housing that constitutes the door closing device can be installed at the mounting work place (installation place of the door closing device). No need to assemble. As a result, it is not necessary to adjust the components other than the housing that constitutes the door closing device (adjustment of gear meshing, clearance adjustment, etc.) at the installation work place, so that the work of assembling the door closing device is easy. Can be done.

In the door closing device including the housing having the end side housing portion and the housing main body portion, preferably, a locking device for restricting the movement of the door body in the opening direction by the conversion portion is further provided, and the end side housing is provided. The body portion is provided on the end side of the housing with respect to the drive source and the locking device in the opening / closing direction. With this configuration, the drive source and lock device can be attached to the housing body, and the drive source and lock device can be prevented from being attached to the end-side housing. Therefore, the drive source and lock device can be attached. Can be prevented from being split. Therefore, since the drive source and the locking device are not separated, it is not necessary to assemble the drive source and the locking device at the mounting work place. As a result, it is not necessary to make adjustments (adjustment of gear meshing, clearance adjustment, etc.) necessary for the drive source and the locking device at the mounting work place, so that the door closing device can be easily assembled.

The door closing device according to the first aspect is preferably configured to open and close the door body for a railroad vehicle. With this configuration, even if the insertion slot into which the door closing device is inserted is relatively small with respect to the conversion unit, the door closing device can easily pass through the insertion slot and be installed at the installation position. It is possible to obtain a door closing device for railway vehicles.

In this case, preferably, the conversion unit includes a housing that accommodates the pinion gear and the rack portion so as to be linearly movable, and the housing is a conversion unit with respect to the housing main body and the housing main body. By dividing at least one end of the housing in the opening / closing direction and the other end of the housing in the opening / closing direction of the conversion unit, the end-side housing portion provided separately is provided. However, the end-side housing is at least a plurality of pillars provided along the vertical direction on both ends of the entrance / exit where the door body of the railroad vehicle is provided, with the conversion portion attached to the railroad car. One of them overlaps when viewed from the inside of the car. With this configuration, the end side of the housing body is closer to the end than at least one of the plurality of pillars on both ends of the entrance / exit, as compared with the case where the end side housing portion is arranged on the back side in the opening / closing direction. Since the housing portion on the side of the portion can be easily assembled, the work of assembling the door closing device to the railway vehicle can be easily performed.

The method of attaching the door closing device according to the second aspect is the housing main body portion of the housing provided in the conversion portion including the pinion gear and the rack portion at the insertion port inserted when the door closing device is installed at the installation position. At least one of a step of inserting the housing, a step of fixing the housing body inserted at the installation position, one end of the housing in the opening / closing direction, and the other end of the housing in the opening / closing direction. In a state where the end-side housing portion is divided from the housing main body portion, the step of inserting the housing portion into the insertion slot separately from the housing main body portion and the end-side housing portion inserted at the installation position are inserted. It has a step to fix it.

In the method of attaching the door closing device according to the second aspect, as described above, at least one of one end in the opening / closing direction of the housing and the other end in the opening / closing direction of the housing is divided. A step is provided in which the housing portion on the portion side is inserted into the insertion slot separately from the housing main body portion in a state of being separated from the housing main body portion. As a result, by dividing at least one end of the conversion unit in the opening / closing direction and at least one of the other ends, the dimensions of the conversion unit in the opening / closing direction can be adjusted when the door closing device is installed at the installation position. It can be made smaller temporarily. Therefore, even if the opening / closing dimension of the insertion slot inserted when the door closing device is installed at the installation position is relatively small with respect to the conversion part due to other structures (pillars or walls). The door closing device can pass through the insertion slot. Then, after the door closing device has passed through the insertion port, the door closing device is installed by passing at least one of one end and the other end of the divided conversion unit in the opening / closing direction through the insertion port. Can be installed in position. As a result, even if the opening / closing dimension of the insertion port into which the door closing device is inserted is relatively small with respect to the conversion unit, the door closing device can easily pass through the insertion port and be installed at the installation position. A possible method of mounting the door closing device can be obtained.

In the method of attaching the door closing device according to the second aspect, preferably, the step of fixing is the step of connecting the end side housing portion to the housing main body portion without dividing the housing, and the housing is fixed. The housing mounting member includes a step of fixing the end-side housing portion separately from the housing main body portion. With such a configuration, it is possible to obtain a method of attaching a door closing device that can be easily fixed in a state where the housing main body portion and the end side housing portion are connected.

According to the present invention, as described above, even when the dimension of the insertion port into which the door closing device is inserted in the opening / closing direction is relatively small with respect to the conversion unit, the door closing device easily passes through the insertion port. It can be installed at the installation position.

It is a perspective view of the door closing device of this embodiment. FIG. 2A is a front view showing a state in which the housing of the direction changing device is removed in the door closed state. FIG. 2B is a front view showing a state in which the housing of the direction changing device is removed in the door open state. It is a front view which showed the state which the door closing device of this embodiment was attached to the body body of a railroad vehicle. It is a side view which showed the state which the door closing device of this embodiment was attached to the body body of a railroad vehicle. It is a top view which showed the state which the door closing device of this embodiment was attached to the body body of a railroad vehicle. It is a front view which showed the state which the end side housing part was removed in the door closing device of this embodiment. It is a partially enlarged view of the K portion of FIG. It is a partially enlarged view of the state in which the rack portion is exposed in the K portion of FIG. It is a flowchart which showed the mounting method of the door closing device of this embodiment. It is a top view which showed the state which fixed the 1st housing mounting member and the 2nd housing mounting member of the door closing device of this embodiment to the body frame of a railroad vehicle. It is a top view which showed the state which the housing main body part of the door closing device of this embodiment is inserted into the insertion opening of a railroad vehicle. FIG. 5 is a plan view showing a state in which the housing main body of the door closing device of the present embodiment is tilted and inserted into the insertion port of a railway vehicle. It is a top view which showed the state which the end side housing part of the door closing device of this embodiment was inserted into an insertion opening. It is a top view which showed the state which the door closing device of this embodiment was installed at the installation position of a railroad vehicle. It is a top view which showed the door closing device of the modification of this embodiment.

Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.

The configuration of the door closing device 100 according to the present embodiment will be described with reference to FIGS. 1 to 8. As shown in FIGS. 1 and 2, the door closing device 100 is a door closing device 100 for a single door that opens and closes the door body 6 of a railway vehicle. Further, the door closing device 100 is an electric device mounted on a railway vehicle. The door closing device 100 includes a drive source 1, a locking device 2, a housing mounting member 3 (see FIG. 3), a plurality of fixing members 4 (see FIG. 3), and a direction changing device 5. The direction changing device 5 is an example of a "converting unit" in the claims.

In the following description, the opening / closing direction of the door body 6 is the X direction, the opening direction of the X direction is the X1 direction, and the closing direction of the X direction is the X2 direction. Further, the vertical direction is the Z direction, one of the Z directions is the Z1 direction (upward direction), and the other of the Z directions is the Z2 direction (downward direction). The direction orthogonal to the X and Z directions is the Y direction, one of the Y directions is the Y1 direction (inside the vehicle), and the other of the Y directions is the Y2 direction (outside the vehicle). Further, the state in which the door body 6 is moved in the X2 direction and closed is the door closed state (see FIG. 2 (A)), and the state in which the door body 6 is moved in the X1 direction and opened is the door open state (FIG. 2 (FIG. 2)). B) Refer to). The Z direction is an example of the "vertical direction" of the claims.

The drive source 1 is configured to generate a driving force for opening and closing the door body 6. Specifically, the drive source 1 is composed of an electric motor having a rotation shaft 11 that rotates around a rotation center axis extending in a direction along the Y direction.

As shown in FIGS. 2A and 2B, the locking device 2 regulates the movement of the door body 6 in the X direction in order to prevent the railroad vehicle or the like from opening the door while traveling. It is configured to (lock). Specifically, the lock device 2 includes a mounting plate 21, a solenoid 22, a slide portion 23, a holding portion 24, and a regulating portion 25.

The mounting plate 21 is a plate-shaped member to which the solenoid 22 and the slide portion 23 are mounted. The solenoid 22 has a plunger 22a that moves forward and backward in the Z direction. The plunger 22a is configured to come into contact with the holding portion 24. The holding portion 24 is attached to the slide portion 23 so as to be slidable in the Z direction.

The regulation unit 25 is configured to regulate the movement of the door body 6 in the X1 direction by the drive source 1. Here, the state in which the movement of the door body 6 is restricted by the regulation unit 25 is defined as the regulated state.

Specifically, the regulation unit 25 has a compression spring (not shown) and a lock pin 25a. The compression spring urges the lock pin 25a toward the Z2 direction. Since the protruding portion of the lock pin 25a on the Z2 direction side abuts on the engaging body 55, the lock pin 25a and the engaging body 55, which will be described later, engage with each other, the movement of the door body 6 in the X1 direction is restricted. It is possible to put it in a regulated state.

The lock pin 25a is configured to move in the Z1 direction against the urging force of the compression spring by moving the plunger 22a in the Z1 direction. That is, when the plunger 22a is set in the Z1 direction, the regulated state is released. Further, the lock pin 25a is configured to move the plunger 22a in the Z2 direction according to the urging force of the compression spring. That is, when the plunger 22a moves in the Z2 direction, it returns to the regulated state.

As shown in FIGS. 3 and 4, the housing mounting member 3 is a member for mounting the door closing device 100 on the frame (framework) of a railway vehicle. The housing mounting member 3 is a plate-shaped member. The housing mounting member 3 has a substantially rectangular shape when viewed from the Y1 direction side. The housing mounting member 3 is fixed to the vehicle body frame 101 fixed to the frame (framework) of the railway vehicle. A housing 56, which will be described later, is fixed to the housing mounting member 3. A plurality (two) of the housing mounting members 3 are arranged in the X direction. Of the plurality of housing mounting members 3, the member on the X1 direction side is the first housing mounting member 31. Of the plurality of housing mounting members 3, the member on the X2 direction side is the second housing mounting member 32. The housing mounting members 3 may be arranged in one or three or more in the X direction instead of two.

The plurality (three) fixing members 4 are members for fixing the direction changing device 5 to the housing mounting member 3. Each of the plurality of fixing members 4 is a screw member. The plurality of fixing members 4 are arranged side by side along the X direction. The plurality of fixing members 4 are arranged at substantially the same height position in the Z direction. The fixing members 4 may be arranged side by side in 1, 2, or 4 or more instead of 3 in the X direction.

Specifically, the plurality of fixing members 4 fix the housing body portion 56a, which will be described later, to the housing mounting member 3. Here, the drive source 1 and the lock device 2 are fixed to the housing main body portion 56a. In this way, the drive source 1 and the lock device 2 are attached to the housing mounting member 3 via the housing main body portion 56a which is fixed to the housing mounting member 3 by the plurality of fixing members 4.

As shown in FIGS. 2A and 2B, the direction changing device 5 is configured to convert the rotational driving force of the driving source 1 into linear movement in the X direction. Specifically, the direction changing device 5 includes a pinion gear 51, a rack portion 52, a guide rail 53, a connecting arm 54, an engaging body 55, a housing 56 (see FIG. 1), and a screw member 57 (FIG. 1). 1) and is included.

The pinion gear 51 is connected to the rotating shaft 11 of the drive source 1. The pinion gear 51 rotates with the rotation of the rotating shaft 11. The rack portion 52 is arranged so as to engage with the pinion gear 51, and is configured to move linearly by the rotation of the pinion gear 51. That is, a gear portion 52a that engages with the pinion gear 51 is formed on the surface of the rack portion 52 on the Z1 direction side. The rack portion 52 is arranged on the X2 direction side in the closed state. The rack portion 52 extends in the X direction. The guide rail 53 is attached to the inner surface of the housing 56 on the Z2 direction side of the housing body 56a, which will be described later. The guide rail 53 extends in the X direction. A rack portion 52 is attached to the guide rail 53 so as to be slidable in the X direction. The rack portion 52 moves in the X direction along the guide rail 53 due to the rotation of the pinion gear 51.

The connecting arm 54 connects the door body 6 and the rack portion 52. That is, the end portion of the connecting arm 54 on the Z2 direction side is fixed to the door body 6. The end of the connecting arm 54 on the Z1 direction side is fixed to the rack portion 52. As a result, the connecting arm 54 moves integrally with the rack portion 52 in the X direction.

The rack portion 52 moves in the X2 direction along the guide rail 53 by rotating the pinion gear 51 in the R1 direction (counterclockwise direction). At this time, the door body 6 moves in the X2 direction by the connecting arm 54 moving in the X2 direction together with the rack portion 52. As a result, the door body 6 is closed. The rack portion 52 moves in the X1 direction along the guide rail 53 due to the rotation of the pinion gear 51 in the R2 direction (clockwise direction). At this time, the door body 6 moves in the X1 direction by the connecting arm 54 moving in the X1 direction together with the rack portion 52. As a result, the door body 6 opens.

The engaging body 55 has a portion that engages with the lock pin 25a of the locking device 2. The engaging body 55 is a member extending in the X direction. The end of the engaging body 55 on the X2 direction side is fixed to the connecting arm 54. As a result, the engaging body 55 moves integrally with the connecting arm 54 in the X direction.

As shown in FIGS. 3 and 4, the housing 56 has an elongated box shape extending along the X direction. The housing 56 contains a pinion gear 51, a rack portion 52, a guide rail 53, and a connecting arm 54. Here, the rack portion 52 is housed in the housing 56 so as to be linearly movable.

(Case body and end side housing)
Further, the direction changing device 5 of the present embodiment is configured so that the end portion of the direction changing device 5 in the X2 direction can be divided. Specifically, the housing 56 has a housing main body portion 56a and an end side housing portion 56b. In this way, the housing 56 is divided into a housing main body portion 56a and an end side housing portion 56b.

The housing body 56a has an elongated box shape extending along the X direction. The housing body portion 56a is a portion of the housing 56 other than the end-side housing portion 56b. In the X direction, the housing body portion 56a has a larger dimension than the end side housing portion 56b. The housing body portion 56a has an internal space that can accommodate the guide rail 53 and the rack portion 52 that has moved in the X1 direction. The internal space of the housing body 56a is larger than the internal space 356 of the end-side housing 56b.

As shown in FIG. 5, in the X direction, the housing body portion 56a is inserted into the insertion port 102 when the door closing device 100 is installed at the installation position 103 in a state where the end side housing portion 56b is divided. Has a length L that can pass through. Specifically, the length L is the length of the housing body portion 56a in the X direction. The length L is a length that allows the housing body 56a to pass through the insertion slot 102 in a state of being tilted with respect to the X direction (see the dotted line portion in FIG. 5). The length L may be a length that allows the housing body 56a to pass through the insertion slot 102 in a straight line in the direction along the X direction.

As shown in FIGS. 6 to 8, the end-side housing portion 56b is formed by dividing the end portion of the housing 56 in the direction changing device 5 in the X2 direction with respect to the housing main body portion 56a. It is provided separately from the main body portion 56a. The end-side housing portion 56b is detachably provided on the housing main body portion 56a. Specifically, the end-side housing portion 56b has an accommodating portion 156 and a mounting portion 256.

The accommodating portion 156 has an elongated box shape extending along the X direction. The accommodating portion 156 is a part of the housing 56 other than the housing main body portion 56a. In the X direction, the accommodating portion 156 has a size smaller than that of the housing main body portion 56a.

The accommodating portion 156 has an internal space 356 capable of accommodating a part of the rack portion 52 arranged on the X2 direction side. That is, the internal space 356 of the end side housing portion 56b is configured to accommodate a portion of the rack portion 52 that protrudes from the housing main body portion 56a in the X2 direction. In the X direction, the internal space 356 of the end side housing portion 56b is smaller than the internal space of the housing main body portion 56a.

The internal space 356 of the end side housing portion 56b has a size that allows the end side portion of the housing body portion 56a in the X2 direction to be inserted inside. Specifically, in the Y direction, the total length of the internal space 356 of the end side housing portion 56b is larger than the total length of the end side portion of the housing body portion 56a (see FIG. 4). Further, in the Z direction, the total length of the internal space 356 of the end side portion of the end side housing portion 56b is larger than the total length of the housing main body portion 56a (see FIG. 4). As a result, when viewed from the Y1 direction side, the end portion of the end side housing portion 56b on the X1 direction side overlaps with the portion of the housing body portion 56a on the X2 direction side (see the dotted line portion in FIG. 7). ing.

The housing body portion 56a and the end side housing portion 56b are separately connected to the second housing mounting member 32 in a state where the end side housing portion 56b is connected to the housing body portion 56a without being divided. It is fixed. Here, since the housing body portion 56a is arranged on the Y1 direction side of the second housing mounting member 32, it is directly fixed by the fixing member 4. The accommodating portion 156 is arranged at a position displaced in the X2 direction with respect to the second housing mounting member 32. Therefore, the accommodating portion 156 is fixed to the second housing mounting member 32 via the mounting portion 256.

The mounting portion 256 is configured to fix the end side housing portion 56b to the housing mounting member 3. The mounting portion 256 extends in the X direction. The mounting portion 256 has a substantially L-shape (see FIG. 4) when viewed from the X2 direction side. The mounting portion 256 has an upper surface portion 256a and a side surface portion 256b. The upper surface portion 256a is provided at the end portion of the side surface portion 256b on the Z1 direction side. An accommodating portion 156 is fixed to the upper surface portion 256a. The side surface portion 256b is provided at the end portion of the upper surface portion 256a on the Y2 direction side. The side surface portion 256b is fixed to the second housing mounting member 32 by the screw member 57. In this way, the screw member 57 fixes the mounting portion 256 to the second housing mounting member 32. Further, the mounting portion 256 connects the accommodating portion 156 and the second housing mounting member 32.

In this way, the end-side housing portion 56b is fixed to the second housing mounting member 32 via the mounting portion 256 in a state where the end-side portion of the housing body portion 56a is inserted into the internal space 356. ing. Here, the mounting portion 256 is formed with a fixing elongated hole 132 having a first hole portion 132a and a second hole portion 132b. The first hole portion 132a has a size into which the head of the screw member 57 can be inserted. The first hole portion 132a is a through hole that penetrates the side surface portion 256b of the mounting portion 256 in the Y direction. The second hole portion 132b communicates with the first hole portion 132a, has a size in which the leg portion of the screw member 57 can be inserted, and the head portion of the screw member 57 cannot be inserted. The second hole portion 132b is an elongated hole that penetrates the side surface portion 256b of the mounting portion 256 in the Y direction and extends in the X direction.

The end side housing portion 56b is provided at a position avoiding the drive source 1 and the lock device 2. That is, the end side housing portion 56b is provided on the end side (X2 direction side) of the housing 56 with respect to the drive source 1 and the lock device 2 in the X direction. Specifically, the end-side housing portion 56b is located on the end side (X2) of the housing 56 in the X direction with respect to the fixing member 4 arranged on the most end side in the X direction among the plurality of fixing members 4. It is located on the directional side). Then, the end side housing portion 56b is provided along the Z direction on the X2 direction side of the entrance / exit 104 where the door body 6 of the railway vehicle is provided in a state where the direction changing device 5 is attached to the railway vehicle. The pillar 105 overlaps with the pillar 105 when viewed from the Y1 direction side (see the two-dot chain line portion in FIG. 7).

(How to install the door closing device)
Hereinafter, a method of attaching the door closing device 100 will be described with reference to FIGS. 9 to 14. By this mounting method, the door closing device 100 having the rack portion 52 is mounted (installed) at the installation position 103 of the vehicle body.

First, in step S1, the operator fixes the housing mounting member 3 to the vehicle body frame 101. That is, as shown in FIG. 10, the operator fixes the first housing mounting member 31 and the second housing mounting member 32 to the vehicle body frame 101.

In step S2, the operator inserts the housing body 56a into the insertion slot 102. That is, as shown in FIG. 11, the insertion port 102 inserted when the operator installs the door closing device 100 at the installation position 103 is provided in the direction changing device 5 including the pinion gear 51 and the rack portion 52. The housing body portion 56a of the housing 56 is inserted. At this time, the end-side housing portion 56b is removed (divided) from the housing main body portion 56a.

Specifically, as shown in FIG. 12, the operator tilts the housing body 56a with respect to the X direction via the insertion port 102, moves the housing body 56a toward the X2 direction, and communicates with the insertion port 102. Insert into space 106.

In step S3, the operator fixes the housing body portion 56a inserted from the insertion port 102. That is, as shown in FIG. 13, the operator inserts the housing body 56a into the installation space 106 while moving it toward the X2 direction, and then inserts the housing body 56a inserted into the installation space 106 in the X1 direction. It is positioned while being moved to the side, and is fixed to the first housing mounting member 31 and the second housing mounting member 32 by the fixing member 4.

In step S4, the operator inserts the end side housing portion 56b into the insertion port 102. That is, as shown in FIG. 13, the operator divides the end portion of the housing 56 on the X2 direction side into the end side housing portion 56b, and divides the end side housing portion 56b from the housing main body portion 56a. It is inserted into the insertion slot 102 separately from the 56a.

In step S5, the operator connects the end side housing portion 56b to the housing main body portion 56a. That is, as shown in FIG. 14, the operator connects the end side housing portion 56b to the housing main body portion 56a without dividing it. Specifically, the operator attaches the end side housing portion 56b to the end side portion on the X2 direction side of the housing body portion 56a fixed to the first housing mounting member 31 and the second housing mounting member 32. Insert it so that it covers.

Then, in step S6, the operator fixes the end side housing portion 56b to the second housing mounting member 32. That is, the housing main body portion 56a and the end side housing portion 56b are separately fixed to the second housing mounting member 32 to which the housing 56 is fixed. Specifically, the operator uses the screw member 57 to attach the end-side housing portion 56b to the second housing mounting member in a state where the leg portion of the screw member 57 is inserted into the second hole portion 132b of the fixing elongated hole 132. It is fixed to 32. After step S6, the method of attaching the door closing device 100 ends.

(Effect of this embodiment)
In this embodiment, the following effects can be obtained.

In the present embodiment, as described above, the direction changing device 5 is configured so that one end of the direction changing device 5 in the X2 direction can be divided. As a result, when the door closing device 100 is installed at the installation position 103, the dimension of the direction changing device 5 in the X direction can be temporarily reduced. Therefore, the X-direction dimension of the insertion port 102 inserted when the door closing device 100 is installed at the installation position 103 is compared with that of the direction changing device 5 due to other structures (pillars or walls). Even if the size is small, the door closing device 100 can pass through the insertion port 102. Then, after the door closing device 100 has passed through the insertion port 102, the door closing device 100 is installed at the installation position 103 by passing the end portion of the divided direction changing device 5 in the X2 direction through the insertion port 102. Can be done. As a result, even when the dimension of the insertion port 102 into which the door closing device 100 is inserted in the X direction is relatively small with respect to the direction changing device 5, the door closing device 100 easily passes through the insertion port 102 and is installed at the installation position. It can be installed at 103.

Further, in the present embodiment, as described above, the housing 56 is provided with the housing body 56a and one end of the housing 56 in the direction changing device 5 in the X2 direction with respect to the housing body 56a. By dividing, an end side housing portion 56b provided separately from the housing main body portion 56a is provided. As a result, the housing 56 having a larger dimension in the X direction than the rack portion 52 for accommodating the rack portion 52 is temporarily divided into a housing main body portion 56a and an end side housing portion 56b. Since the dimension of the direction changing device 5 in the X direction can be made smaller than that of the insertion port 102, the door closing device 100 can be easily passed through the insertion port 102.

Further, in the present embodiment, as described above, the door closing device 100 is inserted when the door closing device 100 is installed at the installation position 103 in a state where the end side housing portion 56b is divided into the housing main body portion 56a in the X direction. The insertion port 102 is provided with a length that allows it to pass through. As a result, the housing body portion 56a having a larger dimension in the X direction than the end side housing portion 56b can be installed at the installation position 103 by passing through the insertion port 102, which is caused by the rack portion 52. Even when the dimension of the housing 56 in the X direction becomes large, the housing main body portion 56a and the end side housing portion 56b can be reliably passed through the insertion port 102 and installed at the installation position 103.

Further, in the present embodiment, as described above, the housing body portion 56a and the end side housing portion 56b are connected to the housing body portion 56a without dividing the end side housing portion 56b. Then, it is fixed to the second housing mounting member 32 separately from the housing main body portion 56a. As a result, the housing body portion 56a and the end side housing portion 56b can be easily fixed in a connected state.

Further, in the present embodiment, as described above, the end side housing portion 56b is inserted into the internal space 356 with the end side portion of the housing body portion 56a inserted into the internal space 356, and the second end side housing portion 56b is inserted via the mounting portion 256. It is fixed to the housing mounting member 32. As a result, when the rack portion 52 is linearly moved by the end side housing portion 56b in which the end side portion of the housing main body portion 56a is inserted into the internal space 356, the rack portion 52 is moved from the housing main body portion 56a. Since the protruding portion can be covered without a gap, it is possible to prevent foreign matter such as dust from adhering to the rack portion 52.

Further, in the present embodiment, as described above, the first hole portion 132a having a size capable of inserting the head of the screw member 57 into the mounting portion 256 and the first hole portion 132a are communicated with each other and the screw member. A long hole 132 for fixing is formed, in which the leg portion of 57 can be inserted and the head portion of the screw member 57 has a second hole portion 132b having a size that cannot be inserted. As a result, after inserting the head of the screw member 57 into the first hole 132a of the long hole 132 for fixing, the mounting portion 256 is slid and moved to insert the leg of the screw member 57 into the second hole 132b. As a result, the screw member 57 fixed to the second housing mounting member 32 engages with the second hole 132b of the mounting portion 256, so that the screw member 57 temporarily holds the mounting portion 256 having the fixing elongated hole 132. be able to.

Further, in the present embodiment, as described above, the end-side housing portion 56b is housing in the X direction with respect to the fixing member 4 arranged on the most end side in the X direction among the plurality of fixing members 4. It is arranged on the end side of the body 56. As a result, other than the housing 56 that constitutes the door closing device 100 on the center side in the X direction of the door closing device 100, rather than the fixing member 4 arranged on the most end side in the X direction among the plurality of fixing members 4. When the components are arranged, the components constituting the door closing device 100 are collected and attached to the housing body portion 56a, and the components constituting the door closing device 100 are attached to the end side housing portion 56b. Can be avoided. Therefore, since the components other than the housing 56 constituting the door closing device 100 can be prevented from being divided, the components other than the housing 56 constituting the door closing device 100 can be attached to the mounting work place (door closing device 100). There is no need to assemble at the installation location). As a result, it is not necessary to adjust the components other than the housing 56 constituting the door closing device 100 (adjustment of gear meshing, clearance adjustment, etc.) at the mounting work place, so that the door closing device 100 can be assembled. The work can be done easily.

Further, in the present embodiment, as described above, the end side housing portion 56b is provided on the end side of the housing 56 with respect to the drive source 1 and the lock device 2 in the X direction. As a result, the drive source 1 and the lock device 2 can be attached to the housing body portion 56a, and the drive source 1 and the lock device 2 can be prevented from being attached to the end side housing portion 56b. And the locking device 2 can be prevented from being split. Therefore, since the drive source 1 and the lock device 2 are not divided, it is not necessary to assemble the drive source 1 and the lock device 2 at the mounting work place. As a result, it is not necessary to make adjustments (gear meshing adjustment, clearance adjustment, etc.) necessary for the drive source 1 and the lock device 2 at the mounting work place, so that the door closing device 100 can be easily assembled. Can be done.

Further, in the present embodiment, as described above, the door closing device 100 is configured to open and close the door body 6 for a railroad vehicle. As a result, even if the insertion port 102 into which the door closing device 100 is inserted is relatively small with respect to the direction changing device 5, the door closing device 100 easily passes through the insertion port 102 and is installed at the installation position 103. It is possible to obtain a door closing device 100 for a railroad vehicle capable of this.

Further, in the present embodiment, as described above, the end side housing portion 56b is attached to both ends of the entrance / exit 104 on which the door body 6 of the railway vehicle is provided with the direction changing device 5 attached to the railway vehicle. , At least one of the plurality of pillars 105 provided along the Z direction is overlapped when viewed from the Y1 direction side. As a result, as compared with the case where the end side housing portion 56b is arranged on the back side in the X direction from the pillar 105 on the X2 direction side of the entrance / exit 104, the end side housing portion is placed on the housing body portion 56a. Since the 56b can be easily assembled, the work of assembling the door closing device 100 to the railroad vehicle can be easily performed.

Further, in the present embodiment, as described above, in the mounting method of the door closing device 100, the end side housing portion 56b obtained by dividing one end of the housing 56 in the X2 direction is provided from the housing main body portion 56a. In the divided state, step S2 for inserting into the insertion port 102 is provided separately from the housing main body portion 56a. As a result, by dividing one end of the direction changing device 5 in the X2 direction, the dimension of the direction changing device 5 in the X direction is temporarily reduced when the door closing device 100 is installed at the installation position 103. be able to. Therefore, the X-direction dimension of the insertion port 102 inserted when the door closing device 100 is installed at the installation position 103 is compared with that of the direction changing device 5 due to other structures (pillars or walls). Even if the size is small, the door closing device 100 can pass through the insertion port 102. Then, after the door closing device 100 has passed through the insertion port 102, the door closing device 100 is installed at the installation position 103 by passing the end portion of the divided direction changing device 5 in the X2 direction through the insertion port 102. Can be done. As a result, even when the dimension of the insertion port 102 into which the door closing device 100 is inserted in the X direction is relatively small with respect to the direction changing device 5, the door closing device 100 easily passes through the insertion port 102 and is installed at the installation position. It is possible to obtain a mounting method of the door closing device 100 that can be installed in 103.

Further, in the present embodiment, as described above, in the mounting method of the door closing device 100, the second housing mounting member 32 to which the housing 56 is fixed is attached to the end side housing separately from the housing main body 56a. Step S5 for fixing the portion 56b is provided. As a result, it is possible to obtain a method of attaching the door closing device 100 that can be easily fixed in a state where the housing main body portion 56a and the end side housing portion 56b are connected to each other.

[Modification example]
It should be noted that the embodiments disclosed this time are exemplary in all respects and are not considered to be restrictive. The scope of the present invention is shown by the claims rather than the description of the above-described embodiment, and further includes all modifications (modifications) within the meaning and scope equivalent to the claims.

For example, in the above embodiment, the door closing device 100 is configured to open and close the door body 6 of the railway vehicle, but the present invention is not limited to this. In the present invention, the door closing device may be used for an automatic door of a vehicle such as a bus, an automatic door provided in an elevator or the like, and the like.

Further, in the above embodiment, the door closing device 100 is an example of a door closing device 100 for a single door that opens and closes the door body 6 of a railway vehicle, but the present invention is not limited to this. In the present invention, the door closing device 400 for both doors may be used as in the modified example shown in FIG.

Further, in the above embodiment, the end side housing portion 56b is an example in which the end side housing portion 56b is the end portion of the housing 56 in the direction changing device 5 in the X2 direction with respect to the housing main body portion 56a. Not limited to this. In the present invention, as in the modified example shown in FIG. 15, the end side housing portion 456b may be the end portion of the housing 456 in the direction changing device 405 on the X1 direction side and the X2 direction side. Further, the end side housing portion may be the end portion of the housing in the direction changing device on the X1 direction side.

Further, in the above embodiment, the housing body portion 56a and the end side housing portion 56b are separately connected to the housing body portion 56a without being divided. 2 An example of being fixed to a housing mounting member 32 (housing mounting member) has been shown, but the present invention is not limited to this. In the present invention, the end side housing portion may be fixed to the housing main body portion, and the housing main body portion may be fixed to the housing mounting member.

Further, in the above-described embodiment, the end-side housing portion 56b has an example in which the end-side housing portion 56b has a mounting portion 256 for fixing the end-side housing portion 56b to the second housing mounting member 32. The present invention is not limited to this. In the present invention, the end-side housing portion does not have to have a mounting portion.

Further, in the above embodiment, the end side housing portion 56b is a second housing mounting member 32 via the mounting portion 256 in a state where the end side portion of the housing body portion 56a is inserted into the internal space 356. Although an example of being fixed to (housing mounting member) has been shown, the present invention is not limited to this. In the present invention, the end-side housing portion may be fixed to the housing mounting member via the mounting portion in a state of being in contact with the end-side portion of the housing main body portion.

Further, in the above embodiment, the second housing mounting member 32 (housing mounting member 3) is formed with a fixing elongated hole 132 having a first hole portion 132a and a second hole portion 132b. However, the present invention is not limited to this. In the present invention, the housing mounting member may be formed with a fixing hole as a through hole instead of a long hole.

Further, in the above embodiment, the end side housing portion 56b is attached to the pillar 105 on the X2 direction side of the entrance / exit 104 in the Y1 direction side (in a state where the direction changing device 5 (converting portion) is attached to the railway vehicle). An example of overlapping when viewed from the inside of the vehicle) is shown, but the present invention is not limited to this. In the present invention, the end-side housing portion may overlap the pillar on the X1 direction side of the entrance / exit with the conversion portion attached to the railway vehicle. Further, the end-side housing portion may overlap the pillars on both the X1 direction side and the X2 direction side of the entrance / exit when viewed from the inside of the vehicle.

1 Drive source 2 Lock device 3 Housing mounting member 4 Fixing member 5,405 Direction conversion device (conversion unit)
6 Door 11 Rotating shaft 21 Mounting plate 22 Solenoid 22a Plunger 23 Sliding part 24 Holding part 25 Restricting part 25a Lock pin 51 Pinion gear 52 Rack part 53 Guide rail 54 Connecting arm 55

Engaging body

56, 456 Housing 56a Housing body 56b 456b End side housing part 57

Screw member

100, 400 Door closing device 101 Body frame 102 Insertion space 103 Installation position 104 Entrance / exit 105 Pillar 132 Fixing slot 132a First hole 132b Second hole 256 Mounting part 356 Interior space L length

Claims

A drive source that opens and closes the door, including a rotating shaft,
A pinion gear connected to the rotating shaft and a rack portion arranged so as to engage with the pinion gear and linearly moving by rotation of the pinion gear are included, and the rotational driving force of the driving source is applied to the opening / closing direction of the door body. Equipped with a conversion unit that converts to linear movement,
The conversion unit is a door closing device capable of dividing at least one of one end of the conversion unit in the opening / closing direction and the other end of the conversion unit in the opening / closing direction.
The conversion unit includes a housing for accommodating the pinion gear and accommodating the rack unit so as to be linearly movable.
The housing is
With the main body of the housing
At least one of the one end of the housing in the opening / closing direction of the conversion unit and the other end of the housing in the opening / closing direction of the conversion unit is divided with respect to the housing body. The door closing device according to claim 1, further comprising an end-side housing portion provided separately from the housing main body portion.
In the opening / closing direction, the housing body has a length that allows it to pass through an insertion slot that is inserted when the door closing device is installed at the installation position in a state where the end-side housing is divided. The door closing device according to claim 2.
Further provided with a housing mounting member to which the housing is fixed,
The housing body and the end-side housing are connected to the housing body without dividing the end-side housing, and the housing is separated from the housing body. The door closing device according to claim 2 or 3, which is fixed to a body mounting member.
The end side housing portion
An internal space having a size that allows the end side portion of the housing body portion to be inserted inside in the opening / closing direction.
It has a mounting portion for fixing the end-side housing portion to the housing mounting member.
4. The end-side housing portion is fixed to the housing mounting member via the mounting portion in a state where the end-side portion of the housing body portion is inserted into the internal space. The door closing device described in.
The conversion unit further includes a screw member that fixes the mounting unit to the housing mounting member.
In the mounting portion, a first hole portion having a size capable of inserting the head of the screw member and a leg portion of the screw member can be inserted while communicating with the first hole portion. The door closing device according to claim 5, wherein a fixing elongated hole having a second hole portion having a size such that the head of the screw member cannot be inserted is formed.
The housing main body is fixed to the housing mounting member, and a plurality of fixing members arranged side by side in the opening / closing direction are further provided.
The end-side housing is arranged closer to the end of the housing in the opening / closing direction than the fixing member arranged at the end of the plurality of fixing members in the opening / closing direction. , The door closing device according to any one of claims 4 to 6.
Further provided with a lock device for restricting the movement of the door body in the opening direction by the conversion unit.
The door according to any one of claims 2 to 7, wherein the end-side housing is provided on the end side of the housing with respect to the drive source and the lock device in the opening / closing direction. Closing device.
The door closing device according to any one of claims 1 to 8, which is configured to open and close the door body for a railroad vehicle.
The conversion unit includes a housing for accommodating the pinion gear and accommodating the rack unit so as to be linearly movable.
The housing is
With the main body of the housing
At least one of the one end of the housing in the opening / closing direction of the conversion unit and the other end of the housing in the opening / closing direction of the conversion unit is divided with respect to the housing main body. By doing so, it has an end-side housing portion that is provided separately.
A plurality of housing portions on the end side are provided along the vertical direction on both ends of the entrance / exit on which the door body of the railroad vehicle is provided, with the conversion portion attached to the railroad vehicle. The door closing device according to claim 9, wherein at least one of the pillars overlaps when viewed from the inside of the vehicle.
A step of inserting the housing body of the housing provided in the conversion part including the pinion gear and the rack part into the insertion port inserted when the door closing device is installed at the installation position.
At least one of a step of fixing the housing body inserted at the installation position, one end of the housing in the opening / closing direction, and the other end of the housing in the opening / closing direction is divided. A step of inserting the end-side housing portion into the insertion slot separately from the housing main body portion in a state of being separated from the housing main body portion.
A method of mounting a door closing device, comprising a step of fixing the end-side housing portion inserted at the installation position.
The fixing step is
A step of connecting the end-side housing to the housing body without dividing the housing,
The method for mounting a door closing device according to claim 11, wherein the housing mounting member to which the housing is fixed includes a step of fixing the end-side housing portion separately from the housing main body portion.