JP7371539B2 - Door closing device and how to install the door closing device - Google Patents

Description

The present invention relates to a door closing device and a method for attaching the door closing device, and more particularly to a door closing device including a converting portion including a pinion gear and a rack portion, and a method for attaching the door closing device.

BACKGROUND ART Conventionally, a door closing device including a converting section including a pinion gear and a rack section is known (for example, see Patent Document 1).

The above Patent Document 1 discloses a moving body drive device (door closing device) including a direction changing device including a pinion (pinion gear), and a left rack and a right rack (rack portion). The mobile body drive device is installed at an installation position inside a vehicle or the like. Specifically, after being inserted through an insertion port provided in a vehicle or the like, the mobile body drive device is fixed at an installation position inside the vehicle or the like.

The movable body drive device of Patent Document 1 includes a motor including an output shaft. The motor is configured to transmit driving force for opening and closing the left door and the right door to the direction changing device. The pinion is connected to the output shaft of the motor. The left and right racks are engaged with the pinion. The left rack and left door are connected. The right rack and right door are connected.

In the movable body drive device of Patent Document 1, both the left rack and the right rack move in the opening direction by rotating the pinion in the clockwise direction by the 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 the left door and the right door are in the open state. Further, in the mobile body drive device, both the left rack and the right rack move in the closing 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 the left door and the right door are in the closed state.

Japanese Patent Application Publication No. 2007-297796

However, in the movable body drive device of Patent Document 1, in order to open and close the left door, the length of the left rack in the opening/closing direction is required to correspond to the moving distance of the left door. Furthermore, in the direction changing device, since the left rack moves together with the left door, the left rack also moves by the distance the left door moves. This point also applies to the right rack. That is, the direction changing device requires a dimension that is the sum of the length of the left rack in the opening/closing direction and the moving distance of the left rack. Therefore, in the movable body drive device of Patent Document 1, the direction changing device becomes large in size in the opening/closing direction. Here, the dimensions of the insertion opening in the opening/closing direction that are inserted when installing the moving body drive device at the installation position are relatively small compared to the direction changing device due to other structures (pillars or walls). In this case, it is thought that it becomes difficult for the movable body drive device to pass through the insertion port. Therefore, in the movable body drive device of Patent Document 1, when the dimension in the opening/closing direction of the insertion opening into which the movable body drive device (door closing device) is inserted is relatively small with respect to the direction change device (conversion unit). However, it is desired that the movable body drive device (door closing device) be easily passed through the insertion port and installed at the installation position.

This invention has been made to solve the above-mentioned problems, and one object of the invention is to make the dimensions of the insertion opening into which the door closing device is inserted in the opening/closing direction smaller than that of the conversion part. To provide a door closing device and a method for attaching the door closing device, in which the door closing device can easily pass through an insertion opening and be installed at an installation position even if the door closing device is small.

A door closing device according to a first aspect of the present invention includes a rotating shaft, a drive source for opening and closing a door body, a pinion gear connected to the rotating shaft, and a door closing device arranged to engage with the pinion gear, which is arranged to engage with the pinion gear, and is arranged to engage with the pinion gear. a converting section that converts the rotational driving force of the drive source into linear movement in the opening/closing direction of the door body; the converting section includes one end of the converting section in the opening/closing direction; At least one of the other ends in the opening/closing direction of the opening/closing direction can be divided.

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

Further, in the door closing device according to the first aspect, preferably, the conversion section includes a housing that accommodates the pinion gear and accommodates the rack section so as to be linearly movable, and the housing includes a housing body section, By dividing at least one of the ends of the converting section in the opening/closing direction of the housing and the other end of the converting section in the opening/closing direction of the housing, the housing main body can be separated. and an end-side housing section provided separately from the end section. With this configuration, by dividing the casing, which has larger dimensions in the opening/closing direction than the rack part in order to accommodate the rack part, into the main body part and the end-side casing part, the above-mentioned temporary arrangement can be temporarily achieved. Since the dimensions of the converting portion in the opening/closing direction can be made smaller than the insertion opening, the door closing device can be easily passed through the insertion opening.

In this case, preferably, in the opening/closing direction, the housing main body part has a length that allows it to pass through the insertion opening into which the door closing device is inserted when installing the door closing device at the installation position, with the end side housing part divided. have. With this configuration, it is possible to pass through the insertion port and install the housing main body section, which has a larger dimension in the opening/closing direction than the end side housing section, at the installation position. Even if the dimensions of the body in the opening/closing direction become large, the housing main body portion and the end side housing portion can be reliably passed through the insertion opening and installed at the installation position.

Preferably, the door closing device includes a casing having an end-side casing and a casing main body, further comprising a casing mounting member to which the casing is fixed, and which includes a casing main body and an end-side casing. The part is fixed to the housing mounting member separately from the housing body with the end side housing connected to the housing body without being divided. With this configuration, the casing main body and the end casing can be easily fixed in a connected state.

In the door closing device including the above-mentioned case mounting member, preferably, the end-side case has an internal space large enough to allow insertion of the end-side portion of the case main body in the opening/closing direction, and an end-side case. and a mounting part for fixing the side housing part to the housing mounting member, and the end side housing part has a mounting part for fixing the side housing part to the housing mounting member. It is fixed to the housing mounting member via. With this configuration, when the rack moves in a straight line, the rack protrudes from the housing body due to the end-side housing portion in which the end side portion of the housing body is inserted into the internal space. Since the rack portion can be covered without any gaps, it is possible to prevent foreign matter such as dust from adhering to the rack portion.

In the door closing device including the end-side housing portion having the mounting portion, preferably, the converting portion further includes a screw member for fixing the mounting portion to the housing mounting member, and the mounting portion includes a head of the screw member. a first hole that communicates with the first hole and has a size that allows the screw member to be inserted therein; A fixing elongated hole having a second hole portion is formed. With this configuration, after inserting the head of the screw member into the first hole of the fixing elongated hole, by sliding the mounting portion and inserting the leg of the screw member into the second hole, Since the screw member fixed to the housing attachment member engages with the second hole of the attachment portion, the attachment portion having the elongated fixing hole can be temporarily held by the screw member.

In the door closing device including the above-mentioned case mounting member, preferably, the case main body is fixed to the case mounting member, and further includes a plurality of fixing members arranged in line along the opening/closing direction, and the end side The housing portion is arranged closer to the end of the housing in the opening/closing direction than the fixing member located closest to the end in the opening/closing direction among the plurality of fixing members. With this configuration, the structure other than the casing that constitutes the door closing device is located closer to the center of the door closing device in the opening/closing direction than the fixing member disposed closest to the end in the opening/closing direction among the plurality of fixing members. When the elements are arranged, the components constituting the door closing device are assembled and attached to the main body of the casing, and the components constituting the door closing device are not attached to the end side casing. I can do it. Therefore, components other than the casing that make up the door closing device can be prevented from being split, so components other than the casing that make up the door closing device can be installed at the installation work site (the installation location of the door closing device). No assembly required. As a result, there is no need to adjust the components other than the casing that make up the door closing device (adjustment of gear engagement, clearance adjustment, etc.) at the installation work site, making it easier to assemble the door closing device. can be done.

Preferably, the door closing device includes a casing having an end casing and a casing main body, further comprising a locking device that restricts movement of the door in the opening direction by the converting section, and The body portion is provided closer to the end of the housing than the drive source and the locking device in the opening/closing direction. With this configuration, the drive source and the lock device can be attached to the main body of the casing, and the drive source and the lock device can be prevented from being attached to the end side of the casing. can be prevented from being split. Therefore, since the drive source and lock device are not separated, there is no need to assemble the drive source and lock device at the installation work site. As a result, it is not necessary to make necessary adjustments to the drive source and the locking device (such as gear engagement adjustment and clearance adjustment) at the installation work site, so that the door closing device can be assembled easily.

The door closing device according to the first aspect is preferably configured to open and close a door for a railway vehicle. With this configuration, even if the insertion opening into which the door closing device is inserted is relatively small compared to the conversion part, the door closing device can easily pass through the insertion opening and be installed at the installation position. A door closing device for a railway vehicle can be obtained.

In this case, preferably, the converter includes a housing that accommodates the pinion gear and also accommodates the rack unit in a linearly movable manner, and the housing includes a housing body and a housing body that is connected to the converting unit with respect to the housing body. By dividing at least one of one end in the opening/closing direction of the casing in the converting section and the other end in the opening/closing direction of the casing in the conversion section, the converter has an end-side casing section provided separately. However, when the converting section is attached to the railway vehicle, the end-side housing section is configured to support at least one of the plurality of pillars provided along the vertical direction on both ends of the entrance/exit where the door body of the railway vehicle is provided. Either one overlaps when viewed from inside the car. With this configuration, compared to the case where the end-side casing is located further back in the opening/closing direction than at least one of the plurality of pillars on both ends of the entrance/exit, the casing body has an edge. Since the side housing portion can be easily assembled, the door closing device can be easily assembled to the railway vehicle.

The method for installing a door closing device according to the second aspect is such that a main body portion of the casing provided in the conversion portion including the pinion gear and the rack portion is inserted into the insertion slot inserted when installing the door closing device at the installation position. a step of fixing the casing main body inserted into the installation position, one end of the casing in the opening/closing direction, and at least one of the other end of the casing in the opening/closing direction. The step of inserting the end-side casing section into the insertion slot separately from the casing main body section with the end-side casing section divided from the casing main body section, and the step of inserting the end-side casing section inserted into the installation position and a fixing step.

In the method for mounting a door closing device according to the second aspect, as described above, at least one end of the housing in the opening/closing direction and the other end of the housing in the opening/closing direction are divided. The method further includes a step of inserting the side housing part into the insertion port separately from the housing main body part in a state where the side housing part is divided from the housing main body part. As a result, by dividing at least one end of the converting section in the opening/closing direction and the other end, the dimensions of the converting section in the opening/closing direction can be reduced when installing the door closing device at the installation position. It can be made smaller temporarily. Therefore, even if the dimensions in the opening/closing direction of the insertion slot inserted when installing the door closing device at the installation location are relatively small compared to the conversion part due to other structures (pillars or walls), The door closing device can pass through the insertion opening. After the door closing device has passed through the insertion port, the door closing device is installed by passing at least one end and the other end of the divided conversion section in the opening/closing direction through the insertion port. It can be installed in any position. As a result, even if the dimensions of the insertion slot into which the door closing device is inserted in the opening/closing direction are relatively small compared to the conversion part, the door closing device can easily pass through the insertion opening and be installed at the installation position. Possible door closing device installation methods can be obtained.

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

According to the present invention, as described above, even if the dimension in the opening/closing direction of the insertion slot into which the door closing device is inserted is relatively small with respect to the conversion part, the door closing device can easily pass through the insertion opening. Can be installed in the installation position.

It is a perspective view of the door closing device of this embodiment. FIG. 2(A) is a front view showing a state in which the casing of the direction changing device is removed with the door closed. FIG. 2(B) is a front view showing a state in which the casing of the direction changing device is removed with the door open. It is a front view showing the state where the door closing device of this embodiment was attached to the body of a railroad vehicle. It is a side view showing the state where the door closing device of this embodiment was attached to the body of a railroad vehicle. FIG. 2 is a plan view showing a state in which the door closing device of the present embodiment is attached to the body of a railway vehicle. FIG. 2 is a front view showing the door closing device of the present embodiment with the end-side casing section removed. 4 is a partially enlarged view of portion K in FIG. 3. FIG. FIG. 4 is a partially enlarged view of the rack part exposed in part K of FIG. 3; It is a flowchart which showed the attachment method of the door closing device of this embodiment. It is a top view showing the state where the 1st case attachment member and the 2nd case attachment member of the door closing device of this embodiment were fixed to the car body frame of a railroad vehicle. FIG. 2 is a plan view showing a state in which the main body of the door closing device according to the present embodiment is inserted into an insertion slot of a railway vehicle. FIG. 2 is a plan view showing a state in which the main body of the door closing device of the present embodiment is tilted and inserted into an insertion slot of a railway vehicle. It is a top view showing the state where the end side housing part of the door closing device of this embodiment was inserted into the insertion slot. FIG. 2 is a plan view showing a state in which the door closing device of the present embodiment is installed at an installation position of a railway vehicle. It is a top view showing the door closing device of the modification of this embodiment.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments embodying the present invention will be described based on the drawings.

The configuration of the door closing device 100 according to this embodiment will be described with reference to FIGS. 1 to 7. 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 a door body 6 of a railway vehicle. Moreover, 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. Note that the direction conversion device 5 is an example of a "conversion unit" in the claims.

In the following description, the opening/closing direction of the door body 6 is referred to as the X direction, the opening direction in the X direction is referred to as the X1 direction, and the closing direction in the X direction is referred to as the X2 direction. Further, the vertical direction is defined as the Z direction, one of the Z directions is defined as the Z1 direction (upward direction), and the other of the Z directions is defined as the Z2 direction (downward direction). A direction perpendicular to the X direction and the Z direction is defined as a Y direction, one of the Y directions is defined as a Y1 direction (vehicle inward direction), and the other Y direction is defined as a Y2 direction (vehicle outward direction). Furthermore, the state in which the door body 6 is moved in the X2 direction and closed is defined as 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 defined as the door open state (see FIG. 2(A)). (see B)). Note that the Z direction is an example of the "vertical direction" in the claims.

The drive source 1 is configured to generate a drive force for opening and closing the door body 6. Specifically, the drive source 1 is constituted by 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. 2(A) and 2(B), the locking device 2 restricts the movement of the door body 6 in the X direction to prevent the door from being opened while the railway vehicle is running. (locked). Specifically, the locking device 2 includes a mounting plate 21 , a solenoid 22 , a sliding portion 23 , a holding portion 24 , and a regulating portion 25 .

The attachment plate 21 is a plate-shaped member to which the solenoid 22 and the slide portion 23 are attached. The solenoid 22 has a plunger 22a that moves forward and backward in the Z direction. The plunger 22a is configured to abut against the holding portion 24. The holding part 24 is attached to the sliding part 23 so as to be slidable in the Z direction.

The regulating portion 25 is configured to regulate movement of the door body 6 in the X1 direction by the drive source 1. Here, a state in which movement of the door body 6 is restricted by the restriction section 25 is defined as a restriction state.

Specifically, the restriction portion 25 includes a compression spring (not shown) and a lock pin 25a. The compression spring urges the lock pin 25a in the Z2 direction. The protruding portion of the lock pin 25a in the Z2 direction comes into contact with the engaging body 55, whereby the lock pin 25a and the engaging body 55, which will be described later, engage with each other, thereby restricting the movement of the door body 6 in the X1 direction. 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 when the plunger 22a moves in the Z1 direction. That is, by moving the plunger 22a in the Z1 direction, the restricted 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, the plunger 22a moves in the Z2 direction to return to the restricted state.

As shown in FIGS. 3 and 4, the housing attachment member 3 is a member for attaching the door closing device 100 to the frame (body) 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 attachment member 3 is fixed to a car body frame 101 fixed to a frame (body) of a railway vehicle. A casing 56, which will be described later, is fixed to the casing mounting member 3. A plurality of (two) housing mounting members 3 are arranged in the X direction. Among the plurality of case attachment members 3, the member on the X1 direction side is the first case attachment member 31. Among the plurality of housing attachment members 3, the member on the X2 direction side is the second housing attachment member 32. Note that instead of two housing mounting members 3, one or three or more housing mounting members 3 may be arranged in the X direction.

The plurality of (three) fixing members 4 are members for fixing the direction changing device 5 to the housing attachment 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. Note that instead of three fixing members 4, one, two, or four or more fixing members 4 may be arranged in a line in the X direction.

Specifically, the plurality of fixing members 4 fix a case main body portion 56a, which will be described later, to the case 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 locking device 2 are attached to the housing attachment member 3 via the housing body portion 56 a that is fixed to the housing attachment member 3 by the plurality of fixing members 4 .

As shown in FIGS. 2A and 2B, the direction conversion device 5 is configured to convert the rotational driving force of the drive 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 (see FIG. 1)).

The pinion gear 51 is connected to the rotating shaft 11 of the drive source 1. The pinion gear 51 rotates as the rotating shaft 11 rotates. The rack portion 52 is arranged to engage with the pinion gear 51 and is configured to move linearly as the pinion gear 51 rotates. 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 part 52 is arranged on the X2 direction side in the door closed state. The rack portion 52 extends in the X direction. The guide rail 53 is attached to the inner surface of a case main body portion 56a of the case 56 on the Z2 direction side, 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 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 section 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 due to rotation of the pinion gear 51 in the R1 direction (counterclockwise direction). At this time, the door body 6 moves in the X2 direction as the connecting arm 54 moves in the X2 direction together with the rack portion 52. This closes the door body 6. The rack portion 52 moves in the X1 direction along the guide rail 53 due to rotation of the pinion gear 51 in the R2 direction (clockwise direction). At this time, the door body 6 moves in the X1 direction as the connecting arm 54 moves in the X1 direction together with the rack portion 52. This opens the door body 6.

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 in the X direction. The housing 56 accommodates a pinion gear 51, a rack portion 52, a guide rail 53, and a connecting arm 54 therein. Here, the rack section 52 is housed in a housing 56 so as to be linearly movable.

(The main body of the housing and the end side of the housing)
Moreover, the direction changing device 5 of this 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 casing 56 is divided into a casing main body part 56a and an end-side casing part 56b.

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

As shown in FIG. 5, in the X direction, the housing main body part 56a has an insertion opening 102 inserted when installing the door closing device 100 at the installation position 103, with the end side housing part 56b divided. It has a length L that allows it to pass through. Specifically, the length L is the length of the housing main body portion 56a in the X direction. The length L is a length that allows the main body portion 56a to pass through the insertion port 102 with the housing main body portion 56a tilted with respect to the X direction (see the dotted line portion in FIG. 5). Note that the length L may be a length that allows the housing main body portion 56a to pass through the insertion port 102 while being linear 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 X2 direction in the direction changing device 5 from 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 to the housing body portion 56a. Specifically, the end-side housing portion 56b includes a housing portion 156 and a mounting portion 256.

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

The storage section 156 has an internal space 356 that can accommodate a part of the rack section 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 body portion 56a in the X2 direction. In the X direction, the internal space 356 of the end-side housing section 56b is smaller than the internal space of the housing main body section 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 therein. Specifically, in the Y direction, the total length of the internal space 356 of the end-side housing portion 56b is greater 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 at the end side portion of the end side housing portion 56b is longer than the total length of the housing 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 main body part 56a and the end-side housing part 56b are separately attached to the second housing mounting member 32, with the end-side housing part 56b being connected to the housing main body part 56a without being divided. Fixed. Here, since the housing main body portion 56a is disposed on the Y1 direction side of the second housing attachment member 32, it is directly fixed by the fixing member 4. The accommodating portion 156 is disposed at a position shifted in the X2 direction with respect to the second housing attachment member 32. Therefore, the housing portion 156 is fixed to the second housing attachment member 32 via the attachment portion 256.

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

In this way, the end-side housing portion 56b is fixed to the second housing attachment member 32 via the attachment portion 256 with the end-side portion of the housing body portion 56a inserted into the internal space 356. ing. Here, a long fixing hole 132 having a first hole 132a and a second hole 132b is formed in the attachment portion 256. The first hole 132a has a size that allows the head of the screw member 57 to be inserted therein. The first hole portion 132a is a through hole that penetrates the side surface portion 256b of the attachment portion 256 in the Y direction. The second hole portion 132b communicates with the first hole portion 132a, and has a size that allows the leg portion of the screw member 57 to be inserted therein, but does not allow the head portion of the screw member 57 to be inserted thereinto. The second hole portion 132b is a long hole that penetrates the side surface portion 256b of the attachment portion 256 in the Y direction and extends in the X direction.

The end-side housing portion 56b is provided at a position away from the drive source 1 and the lock device 2. That is, the end-side housing portion 56b is provided closer to the end of the housing 56 (on the X2 direction side) than the drive source 1 and the lock device 2 in the X direction. Specifically, the end-side casing 56b is located closer to the end of the casing 56 (X2 direction). 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 with the direction change device 5 attached to the railway vehicle. When viewed from the Y1 direction side, it overlaps the pillar 105 (see the chain double-dashed line in FIG. 7).

(How to install door closing device)
A method of attaching the door closing device 100 will be described below with reference to FIGS. 9 to 14. With this attachment method, the door closing device 100 having the rack portion 52 is equipped (installed) at the installation position 103 of the vehicle body.

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

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

Specifically, as shown in FIG. 12, the operator tilts the main body part 56a of the casing 56a with respect to the X direction through the insertion port 102, and installs the main body part 56a to communicate with the insertion port 102 while moving it in the X2 direction. Insert into space 106.

In step S3, the operator fixes the housing main body portion 56a inserted through the insertion opening 102. That is, as shown in FIG. 13, the operator inserts the housing main body 56a into the installation space 106 while moving it in the X2 direction, and then moves the housing main body 56a inserted into the installation space 106 in the X1 direction. While moving it to the side, it is positioned and fixed to the first housing attachment member 31 and the second housing attachment 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 separates the end-side housing part 56b, which is obtained by dividing the end of the housing 56 in the X2 direction, from the housing main body part 56a, and 56a and is inserted into the insertion port 102 separately.

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

Then, in step S6, the operator fixes the end-side housing section 56b to the second housing attachment member 32. That is, the housing main body portion 56a and the end side housing portion 56b are separately fixed to the second housing attachment member 32 to which the housing 56 is fixed. Specifically, with the leg of the screw member 57 inserted into the second hole 132b of the long fixing hole 132, the operator uses the screw member 57 to attach the end-side housing portion 56b to the second housing mounting member. Fixed at 32. After step S6, the method for installing the door closing device 100 ends.

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

In this embodiment, as described above, the direction changing device 5 is configured such that one end of the direction changing device 5 in the X2 direction can be divided. Thereby, when installing the door closing device 100 at the installation position 103, the dimension of the direction changing device 5 in the X direction can be temporarily reduced. Therefore, the dimension in the X direction of the insertion slot 102 inserted when installing the door closing device 100 at the installation position 103 is compared to the direction changing device 5 due to other structures (pillars or walls). Even if the target is small, the door closing device 100 can pass through the insertion opening 102. After the door closing device 100 passes through the insertion port 102, the end of the divided direction changing device 5 in the X2 direction is passed through the insertion port 102, thereby installing the door closing device 100 at the installation position 103. I can do it. As a result, even if the dimension in the X direction of the insertion opening 102 into which the door closing device 100 is inserted is relatively small compared to the direction changing device 5, the door closing device 100 can easily pass through the insertion opening 102 and reach the installation position. 103.

In addition, in the present embodiment, as described above, the housing 56 includes the housing main body 56a, and one end of the housing 56 in the X2 direction in the direction changing device 5 with respect to the housing main 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 casing 56, which has a larger dimension in the X direction than the rack part 52 in order to accommodate the rack part 52, can be temporarily divided into the casing main body part 56a and the end-side casing part 56b. Since the dimension of the direction changing device 5 in the X direction can be made smaller than the insertion port 102, the door closing device 100 can be easily passed through the insertion port 102.

In addition, in this embodiment, as described above, when installing the door closing device 100 at the installation position 103, the end-side housing portion 56b is inserted into the housing main body portion 56a in a divided state in the X direction. The insertion opening 102 is provided with a length that allows the insertion port 102 to pass through. As a result, it is possible to pass through the insertion port 102 and install the housing main body part 56a, which has a larger dimension in the X direction than the end side housing part 56b, at the installation position 103. Even if the dimension of the housing 56 in the X direction increases, 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 main body part 56a and the end-side housing part 56b are connected to each other without dividing the end-side housing part 56b to the housing main body part 56a. Then, it is fixed to the second housing attachment member 32 separately from the housing main body part 56a. Thereby, the housing main body portion 56a and the end side housing portion 56b can be easily fixed in a connected state.

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

Further, in this embodiment, as described above, the first hole 132a having a size that allows the head of the screw member 57 to be inserted into the mounting portion 256 communicates with the first hole 132a, and the screw member A fixing elongated hole 132 is formed, which has a second hole 132b into which the leg of the screw member 57 can be inserted, and a second hole 132b having a size that does not allow the head of the screw member 57 to be inserted. Thereby, after inserting the head of the screw member 57 into the first hole 132a of the fixing elongated hole 132, the mounting portion 256 can be slid and the leg of the screw member 57 can be inserted into the second hole 132b. As a result, the screw member 57 fixed to the second housing attachment member 32 engages with the second hole 132b of the attachment portion 256, so that the attachment portion 256 having the elongated fixing hole 132 is temporarily held by the screw member 57. be able to.

Further, in the present embodiment, as described above, the end-side housing portion 56b is placed closer to the housing in the X direction than the fixing member 4 disposed closest to the end 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, the fixing member 4 other than the housing 56 constituting the door closing device 100 is located closer to the center of the door closing device 100 in the X direction than the fixing member 4 disposed on the end side in the X direction among the plurality of fixing members 4. In the case where the components are arranged, the components constituting the door closing device 100 are assembled and attached to the housing main body portion 56a, and the components constituting the door closing device 100 are attached to the end side housing portion 56b. You can avoid it. Therefore, components other than the casing 56 constituting the door closing device 100 can be prevented from being split, so the components other than the casing 56 constituting the door closing device 100 can be installed at the installation work site (the door closing device 100 There is no need to assemble the product at the installation location. As a result, there is no need to adjust the components other than the casing 56 constituting the door closing device 100 (adjustment of gear engagement, clearance adjustment, etc.) at the installation work site, so that the door closing device 100 can be assembled. Work can be done easily.

Further, in this embodiment, as described above, the end-side housing portion 56b is provided closer to the end of the housing 56 than the drive source 1 and the locking device 2 in the X direction. Thereby, it is possible to attach the drive source 1 and the lock device 2 to the housing main body portion 56a, and to prevent the drive source 1 and the lock device 2 from being attached to the end side housing portion 56b. And the locking device 2 can be prevented from being divided. Therefore, since the drive source 1 and the lock device 2 are not separated, there is no need to assemble the drive source 1 and the lock device 2 at the installation work site. As a result, it is not necessary to make necessary adjustments to the drive source 1 and the locking device 2 (adjustment of gear engagement, clearance adjustment, etc.) at the installation work site, making it easy to assemble the door closing device 100. I can do it.

Further, in this embodiment, as described above, the door closing device 100 is configured to open and close the door body 6 for a railway vehicle. Thereby, even if the insertion opening 102 into which the door closing device 100 is inserted is relatively small compared to the direction changing device 5, the door closing device 100 can easily pass through the insertion opening 102 and be installed at the installation position 103. It is possible to obtain a door closing device 100 for a railway vehicle that is capable of closing the door.

In addition, in this embodiment, as described above, the end-side housing portion 56b is attached to both ends of the entrance/exit 104 where the door body 6 of the railway vehicle is provided, with the direction change device 5 attached to the railway vehicle. In addition, 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, compared to the case where the end-side casing 56b is arranged further back in the X direction than the pillar 105 on the X2-direction side of the entrance/exit 104, the end-side casing 56b is attached to the casing main body 56a. 56b can be easily assembled, the work of assembling the door closing device 100 to a railway vehicle can be easily performed.

In addition, in this embodiment, as described above, in the method of attaching the door closing device 100, the end side housing portion 56b, which is obtained by dividing one end of the housing 56 in the X2 direction, is attached from the housing main body portion 56a. A step S2 is provided in which the divided state is inserted into the insertion opening 102 separately from the housing main body 56a. By dividing one end of the direction change device 5 in the X2 direction, the dimension of the direction change 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 dimension in the X direction of the insertion slot 102 inserted when installing the door closing device 100 at the installation position 103 is compared to the direction changing device 5 due to other structures (pillars or walls). Even if the target is small, the door closing device 100 can pass through the insertion opening 102. After the door closing device 100 passes through the insertion port 102, the end of the divided direction changing device 5 in the X2 direction is passed through the insertion port 102, thereby installing the door closing device 100 at the installation position 103. I can do it. As a result, even if the dimension in the X direction of the insertion opening 102 into which the door closing device 100 is inserted is relatively small compared to the direction changing device 5, the door closing device 100 can easily pass through the insertion opening 102 and reach the installation position. 103 can be obtained.

In addition, in the present embodiment, as described above, in the mounting method of the door closing device 100, an end-side casing is attached to the second casing mounting member 32 to which the casing 56 is fixed, separately from the casing main body 56a. A step S5 for fixing the portion 56b is provided. Thereby, it is possible to obtain a method for attaching the door closing device 100 that allows the housing main body portion 56a and the end side housing portion 56b to be easily fixed in a connected state.

[Modified example]
Note that the embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims rather than the description of the embodiments described above, and further includes all changes (modifications) within the meaning and range 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 a railway vehicle, but the present invention is not limited to this. In the present invention, the door closing device may be used for automatic doors of vehicles such as buses, automatic doors provided in elevators, and the like.

Further, in the above embodiment, the door closing device 100 is a single door door closing device 100 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, a door closing device 400 for both doors may be used, as shown in a modification shown in FIG.

Further, in the above embodiment, the end-side housing portion 56b is the end portion of the housing 56 in the direction changing direction X2 in the direction changing device 5 with respect to the housing main body portion 56a. It is not limited to this. In the present invention, as in the modification shown in FIG. 15, the end-side housing portion 456b may be the end portions 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 an end portion on the X1 direction side of the housing in the direction changing device.

Further, in the above embodiment, the housing main body part 56a and the end-side housing part 56b are connected separately to the housing main body part 56a, with the end-side housing part 56b being connected to the housing main body part 56a without being divided. Although an example is shown in which it is fixed to two housing mounting members 32 (casing mounting members), the present invention is not limited to this. In the present invention, the end-side housing portion may be fixed to the housing body portion, and the housing body portion may be fixed to the housing mounting member.

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

Further, in the above embodiment, the end-side housing portion 56b is attached to the second housing attachment member 32 via the attachment 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 is shown in which the device is fixed to the housing mounting member, the present invention is not limited thereto. In the present invention, the end-side housing portion may be fixed to the housing mounting member via the mounting portion while being in contact with the end-side portion of the housing main body.

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

In the embodiment described above, the end-side housing portion 56b is attached to the pillar 105 on the X2 direction side of the entrance/exit 104 on the Y1 direction side ( Although an example has been shown in which they overlap when viewed from inside the vehicle, 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 both the pillars on the X1 direction side and the X2 direction side of the entrance/exit when viewed from inside the vehicle.

1 Drive source 2 Locking device 3 Housing mounting member 4 Fixing member 5, 405 Direction changing device (converting unit)
6 Door body 11 Rotating shaft 21 Mounting plate 22 Solenoid 22a Plunger 23 Slide part 24 Holding part 25 Regulating part 25a Lock pin 51 Pinion gear 52 Rack part 53 Guide rail 54 Connection arm 55 Engagement body 56, 456 Housing 56a Housing main body part 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 Long hole for fixing 132a First hole part 132b Second hole part 256 Mounting part 356 Internal space L length

Claims (12)

A drive source that includes a rotating shaft and opens and closes the door body;
It includes a pinion gear connected to the rotating shaft, and a rack part that is arranged to engage with the pinion gear and moves linearly by the rotation of the pinion gear, and uses the rotational driving force of the drive source in the opening/closing direction of the door body. Equipped with a conversion unit that converts into linear movement,
The converting unit is a door closing device configured to be able to divide at least one of one end of the converting unit in the opening/closing direction and the other end of the converting unit in the opening/closing direction. The conversion section includes a housing that accommodates the pinion gear and accommodates the rack section so as to be linearly movable;
The casing is
A main body of the casing;
The housing body is divided into at least one of one end of the housing in the converting section in the opening/closing direction and the other end of the housing in the converting section in the opening/closing direction. The door closing device according to claim 1, wherein the door closing device has an end-side casing section provided separately from the casing main body section. In the opening/closing direction, the casing main body has a length that allows it to pass through an insertion opening into which the door closing device is inserted when installing the door closing device at the installation position, with the end casing being divided. 3. The door closing device according to claim 2. further comprising a housing mounting member to which the housing is fixed;
The casing main body and the end casing are connected to the casing separately from the casing main body while the end casing is connected to the casing main body without being divided. The door closing device according to claim 2 or 3, wherein the door closing device is fixed to a body attachment member. The end side housing portion is
an internal space large enough to allow insertion of an end side portion of the housing main body in the opening/closing direction;
a mounting portion for fixing the end-side casing portion to the casing mounting member;
Claim 4: The end-side housing part is fixed to the housing mounting member via the mounting part in a state where the end-side portion of the housing main body part is inserted into the internal space. The door closing device described in . The converting section further includes a screw member that fixes the mounting section to the housing mounting member,
The mounting portion has a first hole having a size that allows the head of the screw member to be inserted therein, and a first hole that communicates with the first hole and into which the leg of the screw member can be inserted, and The door closing device according to claim 5, wherein a fixing elongated hole is formed that has a second hole portion having a size that makes it impossible for the head of the screw member to be inserted. Further comprising a plurality of fixing members arranged in line along the opening/closing direction, the housing main body being fixed to the housing mounting member,
The end-side casing section is arranged closer to the end of the casing in the opening/closing direction than a fixing member disposed closest to the end in the opening/closing direction among the plurality of fixing members. , the door closing device according to any one of claims 4 to 6. further comprising a locking device that restricts movement of the door body in an opening direction by the conversion unit,
The door according to any one of claims 2 to 7, wherein the end-side casing is provided closer to the end of the casing than the drive source and the locking device in the opening/closing direction. Closing device. The door closing device according to any one of claims 1 to 8, configured to open and close the door body for a railway vehicle. The conversion section includes a housing that accommodates the pinion gear and accommodates the rack section so as to be linearly movable;
The casing is
A main body of the casing;
The housing body is divided into at least one of one end of the housing in the converting section in the opening/closing direction and the other end of the housing in the converting section in the opening/closing direction. By doing so, it has a separately provided end side housing part,
The end-side housing part includes a plurality of housings provided along the vertical direction on both ends of the entrance/exit where the door body of the railway vehicle is provided in a state where the conversion part is attached to the railway vehicle. The door closing device according to claim 9, which overlaps at least one of the pillars when viewed from inside the vehicle. a step of inserting a main body of a case of a case provided in the converter including the pinion gear and the rack into the insertion slot inserted when installing the door closing device at the installation position;
fixing the casing body inserted into the installation position; and dividing at least one of one end of the casing in the opening/closing direction and the other end of the casing in the opening/closing direction. inserting the end-side casing section separated from the casing main body section into the insertion opening separately from the casing main body section;
A method for attaching a door closing device, comprising the step of fixing the end-side housing portion inserted into the installation position. The fixing step includes:
connecting the end-side casing to the casing main body without dividing it;
12. The method for attaching a door closing device according to claim 11, comprising the step of fixing the end-side casing section separately from the casing main body section to a casing attachment member to which the casing is fixed.

Images