JP6164852B2 - Switchgear and switchgear connecting structure - Google Patents

Description

The present invention relates to an opening / closing device with a closing prevention device that prevents the opening / closing body from closing unexpectedly, and more particularly to an opening / closing device suitable for an overhead door and a switching device connecting structure .

Conventionally, in this kind of invention, as disclosed in Patent Document 1, the opening / closing body (10) that opens and closes in the vertical direction, and projects from the opening / closing body in the lateral width direction and is rotatable to the opening / closing body. A supported roller member (12), a guide rail (20) that receives the roller member in a rollable manner and continues in the vertical direction, and is provided integrally with the opening / closing body and is movable relative to the guide rail ( 42: A closing prevention device (40) configured to engage and disengage the movable engagement member), a torsion coil spring (43) for urging the movable member (42) in the engagement direction, and attachment of the urging means There is an open / close device provided with a pulling member (33: wire or the like) that pulls the movable member (42) upward against a force and pulls it away from the guide rail.
According to this opening / closing device, in the unlikely event that the pulling member (33) is cut or detached, or the tension of the pulling member is reduced due to a failure of the mechanism for winding the pulling member, the torsion coil spring ( 43), the movable member (42: movable engagement member) is rotated upward, and the blade (42c) of the movable engagement member is bitten into the guide rail (20) to open and close the opening / closing body (10). Prevent falling.

However, according to the prior art, since the movable member (42: movable engagement member) is configured to rotate upward against its own weight, the movable member (42: movable engagement member) is rotated. A torsion coil spring (43) is essential. If the urging force of the torsion coil spring (43) is not appropriate, the blade (42c) is repelled by contact with the guide rail (42) and does not bite into the guide rail (42) or the opening / closing body (10 ) May be delayed.
In addition, when installing a plurality of conventional opening / closing devices connected in the lateral direction of the opening / closing body, a central pillar for connecting adjacent guide rails and columns is required. Since the pulling member (33: wire or the like) is disposed on the side of (20) in the vertical direction, the pulling member may be in the way and it may be difficult to connect the opening / closing devices.

JP 2007-211411 A

  This invention makes it an example of a subject to cope with the said conventional situation. That is, making the movable member turn more smoothly in the engagement direction, improving the engagement of the movable member with respect to the engaged portion, improving the connectivity of the opening / closing devices, and the like. Is the purpose.

One means for solving the above problems is an opening / closing body that performs a downward closing operation in a partitioned manner, a roller member that protrudes from the opening / closing body in the lateral width direction of the opening / closing body and is rotatably supported by the opening / closing body, A guide rail that guides the roller member in the opening / closing body opening / closing direction, a closing prevention device configured to engage / disengage the movable member with respect to the guide rail, and the movable member being pulled and held in the opening / closing body opening direction A cord-like member that engages the movable member of the closing prevention device with the engaged portion of the guide rail when the tension of the cord-like member is loosened, and brakes the closing operation of the opening / closing body. In the opening / closing device configured to do so, the closing prevention device rotates the movable member in its own weight direction to engage with the engaged portion and rotate in the reverse direction so as to be detached from the engaged portion. And the rotation of the movable member The central part is arranged along the opening / closing body surface, and the center of gravity of the movable member is arranged away from the rotation center part to the side opposite to the opening / closing body surface side in the opening / closing body thickness direction, Is fixed so as to pull the portion of the movable member closer to the center of gravity than the center of rotation in the opening / closing body opening direction, and the fixing position of the string member and the movable member is opened / closed from the guide rail. It is a position away from the body thickness direction and a position away from the guide rail in the lateral direction of the opening / closing body .

  Since the present invention is configured as described above, the rotation of the movable member in the engagement direction is made smoother, the engagement of the movable member with the engaged portion is improved, and the opening / closing device The object of the present invention, such as improving the connectivity between each other, can be achieved.

It is a perspective view which shows an example of the switchgear concerning this invention. It is principal part sectional drawing which shows an example of the switchgear connection structure which connected the same switchgear. It is operation | movement explanatory drawing of a closure prevention apparatus, (a) shows the state before a movable member engages with a to-be-engaged part, (b) shows the state with which the movable member was engaged with to-be-engaged part. It is principal part sectional drawing which shows the other example of a to-be-engaged part. It is another example of the said engaged part, (a) is the figure seen from the indoor side, (b) shows the side view with respect to (a).

The first feature of the present embodiment is that the opening / closing body that is closed downward as a partition, a roller member that protrudes from the opening / closing body in the lateral width direction of the opening / closing body and is rotatably supported by the opening / closing body, A guide rail that guides the roller member in the opening / closing body opening / closing direction, a closing prevention device configured to engage / disengage the movable member with respect to the guide rail, and the movable member being pulled and held in the opening / closing body opening direction A cord-like member that engages the movable member of the closing prevention device with the engaged portion of the guide rail when the tension of the cord-like member is loosened, and brakes the closing operation of the opening / closing body. In the opening / closing device configured to do so, the closing prevention device rotates the movable member in its own weight direction to engage with the engaged portion and rotate in the reverse direction so as to be detached from the engaged portion. The center of rotation of the movable member Is disposed along the opening / closing body surface, and the center of gravity of the movable member is disposed away from the rotation center portion on the opposite side to the opening / closing body surface side in the opening / closing body thickness direction, The movable member is fixed so as to pull the portion on the side of the center of gravity relative to the rotation center portion in the movable member in the opening / closing body opening direction.
According to this structure, the rotational force by the dead weight acts on the movable member. For this reason, when the string-like member is loosened or cut, the movable member is smoothly rotated by its own weight and engaged with the engaged portion. At this time, the movable member is repelled by the engaged portion. Can be reduced, and the engagement is good.
Moreover, since the movable engaging portion is pulled by the string-like member at a position away from the opening / closing body surface in the opening / closing body thickness direction, when connecting a plurality of opening / closing devices in the lateral width direction, The possibility that the fastening part of the string-like member interferes with the middle pillar or the like can be reduced.

As a second feature, the fastening position of the string-like member and the movable member is a position away from the guide rail in the opening / closing body thickness direction.
According to this configuration, when connecting a plurality of opening and closing devices in the width direction, it is possible to effectively prevent the middle pillar and the like from interfering with the string-like member, and the connectivity between the opening and closing devices is good. is there.

As a third feature, the fastening position of the string-like member and the movable member is a position away from the guide rail in the lateral direction of the opening / closing body.
According to this configuration, the fastening position of the string-like member and the movable member is a position away from the guide rail in the opening / closing body thickness direction and a position away from the guide rail to the outside in the opening / closing body lateral width direction. Therefore, in the case of connecting a plurality of switchgear in the lateral direction, that center post or the like can be prevented from so as to interfere with the cord-like member more effectively, to further improve the connectivity between the switchgear it can.

As a fourth feature, the path of the string-like member in the opening / closing body opening / closing direction is a position away from the guide rail in the opening / closing body thickness direction, and the outside of the opening / closing body lateral width direction from the guide rail. The position was far away.
According to this configuration, when connecting a plurality of opening and closing devices in the width direction, it is possible to more effectively prevent the middle pillar and the like from interfering with the string-like member, and the connectivity between the opening and closing devices can be further increased. Can be improved.

Further, as a further feature, the opening / closing device connecting structure is formed by connecting a plurality of the opening / closing devices in the lateral width direction of the opening / closing body, and includes a middle pillar between adjacent opening / closing devices, and the string-like member The fastening position with respect to the movable member is arranged at a position away from the middle pillar in the opening / closing body thickness direction.
According to this configuration, it is possible to obtain an opening / closing device coupling structure having good connectivity in the lateral width direction of the opening / closing body.

  In the present specification, the “opening / closing body opening / closing direction” means a direction in which the opening / closing body slides in order to partition or open the space in the opening that is opened and closed by the opening / closing device. Further, in the present specification, the “opening / closing body thickness direction” means the thickness direction of the opening / closing body in the fully closed state. Further, in this specification, the “opening / closing body width direction” or “opening / closing body width direction” means a direction that is substantially orthogonal to the opening / closing body opening / closing direction but not the thickness direction of the opening / closing body.

Next, a preferred specific example of the present embodiment having the above features will be described in detail with reference to the drawings.
The opening / closing device 1 opens the opening / closing body 10 by sliding the opening / closing body 10 in the opening direction side (upward in the illustrated example), and further opens the opening / closing body 10 in a direction intersecting the opening direction (in the illustrated example, An example applied to an overhead door that is slid upward and obliquely stored will be described.

  As shown in FIG. 1, the opening / closing device 1 includes an opening / closing body 10 that performs a downward closing operation so as to partition a space, and protrudes from the opening / closing body 10 in the lateral width direction and is rotatably supported by the opening / closing body 10. The roller member 20, the guide rail 30 that guides the roller member 20 in the opening / closing body opening / closing direction (vertical direction) and the storage direction (diagonally upward), and the closure configured to engage and disengage the movable member 42 with respect to the guide rail 30 And a traction mechanism 50 that pulls the movable member 42 in the opening / closing body opening direction by the string-like member 53 and holds the movable member 42 in the disengaged state. When the tension of the string-like member 53 is loosened, the movable member 42 is not moved. The closing operation of the opening / closing body 10 is braked by engaging with the engaged portion 30c.

The opening / closing body 10 includes a plurality of substantially rectangular panel-like members 11 that are long in the lateral direction (substantially horizontal in the illustrated example) arranged in the opening-and-closing direction, and are rotated between adjacent panel-like members 11 and 11. Connected to move.
The opening / closing body 10 opens and closes along the guide rail 30 via the roller members 20 supported at both ends in the width direction.

A plurality of roller members 20 are disposed at predetermined intervals across the opening / closing body opening / closing direction on the end side in the lateral width direction of the opening / closing body 10 and are rotatably supported.
Of the plurality of roller members 20 arranged in the opening / closing body opening / closing direction, the lowermost roller member 20 is rotatably supported by a closing prevention device 40 described later (see FIG. 2).
Each roller member 20 is configured to support a substantially donut-shaped wheel 22 on the distal end side of the shaft portion 21 extending in the lateral direction of the opening / closing body. According to the illustrated example, the roller member 20 is configured to rotate the shaft portion 21 and the wheel 22 integrally. However, as another example, the roller member 20 is rotatably supported by the shaft portion 21. It is also possible to adopt the mode described above.

  In addition, according to the illustrated example, the roller member 20 directly supported by the widthwise end of the opening / closing body 10 and the roller member 20 supported by the closing prevention device 40 are provided. It is also possible to omit the roller member 20 supported by 40 or to provide the roller member 20 in a portion other than the illustrated example.

The guide rail 30 includes an opening / closing rail portion 31 extending in the opening / closing body opening / closing direction (vertical direction in the illustrated example) and a storage rail portion 32 extending in a direction intersecting the opening / closing body opening / closing direction (inclined upward direction in the illustrated example). And a corner rail portion 33 that connects the open / close rail portion 31 and the storage rail portion 32 in a smooth curved shape, and the rail portions 31, 33, and 32 extend in the direction of extension of the roller. The wheel 20 of the member 20 is formed in a substantially concave shape (see FIG. 2) that covers the wheel 22 in a rotatable manner.
The surface on the outdoor side (upper side in FIG. 2) in the opening / closing body thickness direction inside the guide rail 30 is a flat receiving surface 30a that receives the wheel 22 of the roller member 20 so as to be able to roll. Moreover, the indoor side (lower side in FIG. 2) of the opening / closing body thickness direction on the inner side of the guide rail 30 covers the outer peripheral side of the wheel 22 in a substantially concave curved shape to prevent the wheel 22 from falling off. It is a concavely curved portion 30b.
Further, the indoor side outer surface of the guide rail 30 (the outer surface of the concavely curved portion 30b) is an engaged portion 30c having a convex cross section that is engaged and disengaged by the brake engaging portion 42b of the closing prevention device 40.
And this guide rail 30 is fixedly supported by the center pillar 60 etc. which are mentioned later by fixing means, such as welding and riveting.

  Note that the indoor side and the outdoor side described above are expressions for convenience of explanation, and the indoor side means that the closing prevention device 40 is fixed to the opening / closing body 10 in the opening / closing body thickness direction. The outdoor side means the side opposite to the indoor side in the opening / closing body thickness direction. Of course, the position where the closing prevention device 40 is provided is not limited to the indoor side, and the closing prevention device 40 can be arranged outside the room or house depending on the purpose of use of the opening / closing device 1 or the like. Furthermore, the closure prevention device 40 is not provided in a room or a house, but can be provided in a place where there is no concept of a room, such as a simple passage partition or a gate in an external space.

  The closing prevention device 40 includes a fixed member 41 fixed to the surface of the opening / closing body 10 and a movable member 42 supported so as to be rotatable with respect to the fixed member 41. From the opening direction side to the closing direction side to engage with the engaged portion 30c on the surface of the guide rail 30 and rotate in the reverse direction. It supports so that it may detach | leave from the to-be-engaged part 30c (refer FIG.2 and FIG.3).

  The fixing member 41 is a U-shaped frame member fixed and fixed to the opening / closing body 10, and is inserted through the cylindrical portion 41 a along the lateral width direction of the surface of the opening / closing body 10. The shaft portion 21 of the roller member 20 is rotatably supported inside the cylindrical portion 41a. In addition, a biasing member 41b (a torsion coil spring according to the illustrated example) that biases a movable member 42, which will be described later, downward in its own weight direction, is annularly mounted outside the cylindrical portion 41a.

The movable member 42 protrudes from the opening / closing body 10 to the indoor side (lower side in FIG. 2), is pivotally supported by the cylindrical portion 41 a (rotation center portion) of the fixed member 41, and is pulled by the string-like member 53. In FIG. 2, the center of gravity of the movable member 42 is disposed away from the center of rotation toward the side opposite to the opening / closing body surface side in the opening / closing body thickness direction (the indoor side which is the lower side according to FIG. 2). .
The movable member 42 has a normal position where the movable member 42 is not engaged with the engaged portion 30c (see FIG. 3A) and a fall prevention position where the movable member 42 is engaged with the engaged portion 30c (see FIG. 3B). ) With a predetermined angle. In addition, the said normal position is a position which made the movable member 42 substantially orthogonal with respect to the opening-closing body 10 surface according to the example of illustration.

  Further, each part of the movable member 42 will be described in detail. The movable member 42 includes a rotating main body 42a that is rotatably supported, and a brake engaging portion 42b that is engaged with and disengaged from the engaged portion 30c. And a fastening piece portion 42c, which is positioned closer to the centrifugal direction of the rotating main body portion 42a and to which the string-like member 53 is fastened.

The rotation main body 42a is formed so as to increase in volume as it moves away from the rotation center part (cylinder part 41a) and the opening / closing body surface in the opening / closing body thickness direction so that the rotational force due to its own weight increases. According to the illustrated example, it is configured in a triangular shape (see FIG. 3) in a side view with the rotation center side as an apex (see FIG. 3) and a substantially U-shaped frame shape (see FIG. 2) in a plan view. It rotates between the normal position and the fall prevention position about the center.
The center of gravity of the rotation main body 42a is basically arranged on the indoor side of the rotation center (tube portion 41a) so that the rotation main body 42a rotates to the fall prevention position side by its own weight. In the illustrated example, the urging member 41b (torsion coil spring) is also urged toward the fall prevention position so as to supplement the rotational force in the engagement direction.

  The brake engaging portion 42b is a rectangular plate-like member having a blade portion facing the engaged portion 30c, and is fixed to the rotating main body portion 42a so as to rotate integrally with the rotating main body portion 42a. ing.

The fastening piece portion 42c is fixed toward the centrifugal direction of the rotating main body portion 42a, and is on the outside in the lateral width direction of the opening / closing body (in other words, on the middle pillar 60 side in FIG. 2) and outside the guide rail 30. It has a to-be-attached part 42c1 to which the lower end of the string-like member 53 is attached on the protruding end side.
The to-be-fixed part 42c1 is arranged away from the guide rail 30 in the opening / closing body thickness direction and also away from the outside in the opening / closing body lateral width direction, and is formed in a shaft shape according to the illustrated example.

  As shown in FIG. 1, the traction mechanism 50 is supported on the left and right shaft portions 51, 51 disposed in the lateral width direction of the opening / closing body on the upper side of the opening / closing body 10 and on both ends of these shaft portions 51, 51. Reel portions 52, 52, a string-like member 53 that is wound or unwound by each reel portion 52, and a traction source that biases the shaft portion 51 so as to wind the string-like member 53 by the reel portion 52. 54, 54.

  The shaft portion 51 is arranged across the opening / closing body width direction so as to be positioned on the upper extension line of the fully-closed opening / closing body 10, and a stationary part (for example, a casing or the like on which the opening / closing device 1 is installed). On the other hand, it is rotatably supported via a bearing bracket or the like.

  Each reel portion 52 is a substantially cylindrical member capable of winding and unwinding the string-like member 53, and a central portion thereof is fixed to one end side of the shaft portion 51.

The string-like member 53 is a metal wire, is located slightly away from the guide rail 30 to the indoor side in the opening / closing body thickness direction, and slightly separated from the guide rail 30 to the outside in the opening / closing body lateral width direction. The position is arranged so as to extend in the opening / closing direction of the opening / closing body.
The upper end of the string-like member 53 is fixed to the outer peripheral surface of the reel unit 52, and the lower end of the string-shaped member 53 is fixed to the movable member 42 in the closing prevention device 40 and wound around the reel unit 52. Then, the movable member 42 is pulled upward and held at the normal position (see FIG. 3A).

  According to the illustrated example, the traction source 54 is a coil spring that fastens one end side to the shaft portion 51 and fastens the other end side to the immovable portion, thereby urging the shaft portion 51 in the winding direction. is there. As another example of the traction source 54, a mechanism in which the shaft portion 51 is rotated in the winding rotation direction by the weight of the weight member, and the shaft portion 51 is rotated in the winding rotation direction by the power of an electric motor or the like. It is also possible to use a mechanism or the like.

The opening / closing device 1 having the above configuration may be used alone, but as shown in FIG. 2, a plurality of opening / closing devices can be connected in the lateral width direction of the opening / closing body by the opening / closing device connection structure A.
The switchgear connection structure A includes a middle column 60 between the switchgears 1 and 1 adjacent to each other in the widthwise direction of the switchgear, and the fastening position of the string-like member 53 with respect to the movable member 42 (fixed part 42c1). In addition, it is arranged at a position away from the middle pillar 60 to the indoor side in the opening / closing body thickness direction.

  The middle column 60 is a prismatic member extending in the vertical direction, and is fixed to a stationary part such as the ground or a building.

In FIG. 2, reference numeral 61 denotes a cover member provided between the middle column 60 and the guide rail 30. The cover member 61 is a member having an L-shaped cross section extending in the vertical direction, and is provided so as to cover the gap between the opening / closing body 10 and the guide rail 30.
In addition, for both of the adjacent opening and closing devices 1 and 1, the protruding amounts of both the fixing portions 42c1 and 42c1 and the fixing positions of the string-like members 53 and 53 can be arbitrary as long as they do not interfere with each other. However, particularly preferably, as in the specific example shown in FIG. 2, the protruding amount of the to-be-fixed portions 42 c 1 and 42 c 1 is preferably smaller than half of the dimension of the middle column 60 in the opening / closing body thickness direction. The respective protruding ends of the to-be-fixed portions 42c1 and 42c1 and the respective fixing positions of the two string-like members 53 are outside the central portion in the opening / closing body width direction of the middle pillar 60 (for example, in the right-side opening / closing device 1 in FIG. The to-be-fixed part 42c1 and the string-like member 53 are preferably arranged on the right side of the center part of the middle pillar 60.

Next, characteristic operation and effects of the switchgear 1 and the switchgear connecting structure A having the above-described configuration will be described in detail.
During the normal opening / closing operation of the opening / closing body 10, the movable member 42 of the closing prevention device 40 is always pulled by the string-like member 53, as shown in FIG. Therefore, the movable member 42 does not engage with the guide rail 30 and the opening / closing operation of the opening / closing body 10 is not hindered. The opening operation of the opening / closing body 10 is assisted by the tensile force of the string-like member 53.

  When the string-like member 53 is broken or loosened due to a malfunction or the like of the traction mechanism 50, the movable member 42 of the closing prevention device 40 is rotated downward by its own weight as shown in FIG. Then, the brake engaging portion 42b fixed to the movable member 42 engages with the surface of the guide rail 30 (the engaged portion 30c) so as to bite. Therefore, it is possible to prevent the opening / closing body 10 integrated with the closing prevention device 40 from falling.

  Further, when a plurality of the opening / closing devices 1 having the above configuration are connected in the opening / closing body width direction by the opening / closing device connection structure A, the string-like member 53 is located closer to the inside than the guide rail 30 and does not interfere with the middle pillar 60. The connecting operation can be easily performed.

  In addition, according to the specific example, the braking engagement portion 42b of the closing prevention device 40 is directly bitten and locked on the outer surface (the engaged portion 30c) of the guide rail 30, but as another example, As shown in FIGS. 4 and 5, the brake engaging portion 42 b may be locked to the engaged portion 34 that is separate from the guide rail 30.

  The engaged portion 34 is a long member that is integrally fixed along the guide rail 30, and has a plurality of convex portions 34 a at intervals in the vertical direction. The convex part 34a protrudes so as to face the braking engagement part 42b.

  Therefore, when the engaged portion 34 shown in FIGS. 4 and 5 is used, the braking engagement portion 42b is locked between the convex portions 34a adjacent to each other in the vertical direction, so that the braking ability can be further improved. .

  In the above specific example, the urging member 41b is provided to rotate the movable member 42 of the closing prevention device 40 in the engagement direction by its own weight and assist the rotation. However, as another example, the urging member 41b is provided. May be omitted, and the movable member 42 may be rotated in the engagement direction only by its own weight.

  In the above specific example, the state in which the movable member 42 is held substantially perpendicular to the surface of the opening / closing body 10 is the normal position where the movable member 42 is not engaged with the engaged portion 30c (FIG. 3A). However, as another example, the normal position may be a state in which the movable member 42 is inclined upward or downward with respect to the surface of the opening / closing body 10.

  Further, in the above specific example, the opening / closing body 10 is accommodated in the crossing direction (obliquely upward direction) with respect to the opening direction. However, as another example, the opening / closing body 10 may be accommodated substantially directly above. .

  Further, in the above specific example, as a particularly preferable aspect, the closure prevention device 40 having the above structure is provided for the overhead door. However, as another example, the closure prevention device having substantially the same structure is used as a shutter device or the like other than the overhead door. It can also be provided in the switchgear.

  Moreover, in the said specific example, although the string-like member 53 and the to-be-attached part 42c1 are arrange | positioned on the outer side (in other words, the middle pillar 60 side of FIG. 2) of the opening / closing body horizontal direction, as another example, the opening / closing body 10 If the guide rail 30 and the movable member 42 are not interfered during the opening / closing operation or the closing prevention device 40, the string-like member 53 and the attachment portion 42c1 are fixed to the attachment piece portion 42c in the opening / closing body width direction. It may be arranged inside (rotating main body 42a side).

DESCRIPTION OF SYMBOLS 1: Opening / closing device 10: Opening / closing body 20: Roller member 30: Guide rail 30c: Engagement part 40: Closure prevention device 41: Fixing member 41a: Cylindrical part (rotation center part)
42: movable member 50: traction mechanism 53: string-like member 60: middle pillar A: switchgear connecting structure

Claims (6)

An opening / closing body that closes downward as a partition, a roller member that protrudes from the opening / closing body in the lateral width direction and is rotatably supported by the opening / closing body, and a guide that guides the roller member in the opening / closing body opening / closing direction A string, a closure preventing device configured to engage and disengage a movable member with respect to the guide rail, and a string-like member that pulls the movable member in the opening / closing body opening direction and holds the movable member in a detached state. In the opening / closing device configured to engage the movable member of the guide rail with the engaged portion of the guide rail when the tension of the member is loosened, and brake the closing operation of the opening / closing body,
The closure preventing device rotates the movable member so that the movable member rotates in the direction of its own weight, engages with the engaged portion, rotates in the opposite direction, and disengages from the engaged portion. A central portion is disposed along the opening / closing body surface, and the center of gravity of the movable member is disposed away from the rotation center portion on the opposite side to the opening / closing body surface side in the opening / closing body thickness direction,
The string-like member is fastened so as to pull the portion on the center of gravity side of the movable member in the movable member in the opening / closing body opening direction ,
The fastening position of the string-like member and the movable member is a position away from the guide rail in the opening / closing body thickness direction and a position away from the guide rail to the outside in the opening / closing body lateral width direction. Opening and closing device characterized. The path of the string-like member in the opening / closing body opening / closing direction is a position away from the guide rail in the opening / closing body thickness direction and a position away from the guide rail to the outside in the opening / closing body lateral width direction. The switchgear according to claim 1 . The movable member is provided with a braking engagement portion that engages with and disengages from the engaged portion,
The opening / closing apparatus according to claim 1, wherein the fastening position is located at a position away from the braking engagement portion in the lateral direction of the opening / closing body . A switchgear connecting structure in which a plurality of switchgears according to any one of claims 1 to 3 are connected in the lateral width direction of the switchgear,
An opening / closing device connection characterized by comprising a middle column between the opening / closing devices adjacent in the lateral width direction of the opening / closing body and disposing the fastening position away from the middle column in the thickness direction of the opening / closing body. Structure . The switchgear connecting structure according to claim 4, wherein both of the switchgears adjacent to each other in the lateral direction of the switchgear are arranged so as not to interfere with the fastening position on one side and the fastening position on the other side. .   With respect to both of the opening / closing devices adjacent in the opening / closing body lateral width direction, the fastening position and the string-like member are disposed closer to the opening / closing body than the central portion of the middle pillar in the opening / closing body lateral width direction. The switchgear connecting structure according to claim 4 or 5.

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