JP4160479B2 - Switchgear installation structure - Google Patents

Description

  The present invention relates to an installation structure of an opening / closing device for partitioning or opening a space on the front side of an elevator door, and in particular, intrusion of flames or smoke into an indoor side via an elevator shaft in the event of an emergency such as a fire. The present invention relates to an installation structure of a switchgear suitable for blocking.

  The elevator shaft that secures the passage in the vertical direction of the elevator car is formed in the vertical direction in the building where the elevator is installed and in structures such as underground shopping centers, so it becomes a passage for flames and smoke in the event of a fire. There is a fear. For this reason, in order to prevent flames and smoke from entering the upper and lower floors through the elevator shaft, the opening in the frame member on the front side of the elevator door is closed in the event of a fire. There is a switchgear designed to do this.

  For example, in the prior art described in Patent Document 1, an opening outer frame (15) that surrounds the space on the near side of the elevator door 7 from three sides by an upper frame member (13) and left and right side frame members (14). ) And vertical movement means (33) for extending and winding the shutter curtain (30) by the winding shaft (34) so as to partition and open the space in the outer frame (15) for the opening. The vertical movement means (33) is configured to be accommodated within the dimension of the upper frame member (13) in the opening / closing body thickness direction (the direction in and out of the elevator car), so that the elevator hall side Enough space is secured.

However, according to the above prior art, when performing maintenance work on the take-up shaft (34), the vertical movement means (33), etc., an operator who rides on the upper surface of the elevator car is on the elevator shaft (2) side. It was necessary to work from.
In the prior art as described above, although not shown in Patent Document 1, the bracket (38) and the holding member (21) are not continuous in the axial direction of the take-up shaft (34). (2) Maintenance work from the side was possible.
However, during maintenance work on the opening / closing machine (36) and the brake device (37), the bracket (38), the holding member (21), etc. may be in the way, making it difficult to perform the work.
JP 2003-89490 A

  The present invention has been made in view of the above-described conventional circumstances, and a problem to be solved by the present invention is to provide a switchgear installation structure with improved workability such as maintenance work.

In order to solve the above-mentioned problem, the first means includes a frame member that surrounds the space on the front side of the elevator door from at least the upper frame part and the left and right side frame parts, and the space in the frame member in the vertical direction. In the installation structure of the opening / closing device provided with a feeding storage device that feeds and opens the opening / closing body from within the upper frame to be partitioned or opened, the feeding storage device is substantially all or a part thereof. Is disposed in the upper frame portion, and the frame member has an opening portion that is opened and closed by a door member at a portion closer to the front side of the upper frame portion and corresponding to the payout storage device in the upper frame portion. It is characterized by having.

Here, the frame member may be a member that surrounds the space on the front side of the elevator door from at least three sides by the upper frame portion and the left and right side frame portions, that is, the space is surrounded by the upper frame portion and the left and right sides. It may be a member surrounded from four sides by the frame part and the lower frame part.
The frame member includes a general three-way frame including an upper frame portion and left and right side frame portions.
Further, the “front side of the elevator door” means the side opposite to the elevator car with respect to the elevator door.
Further, the above-mentioned “part closer to the upper frame part” may be a part on the opposite side of the elevator car with respect to the elevator door.

In addition, as a preferable aspect in which the feeding and storing device is small and excellent in workability, a winding device that winds or feeds the opening / closing body by a winding shaft is exemplified.
As other modes of the feeding and storing device, a mode of storing the opening / closing body above the upper frame portion without winding up, a mode of storing the opening / closing body above the upper frame portion by folding, and a plurality of plate members An embodiment in which the opening / closing body made of, for example, is slid and overlapped so as to be accommodated above the upper frame portion.
The feeding and storing device may be supported in the frame member as long as substantially all or a part thereof is provided in the upper frame part, or a member other than the frame member (for example, It may be supported by a structure side portion where the frame member is installed.
In addition, the drive source of the feeding and storing apparatus includes an electrical configuration using an electric motor, a configuration using a biasing member such as a spring, a configuration using the weight of the opening / closing body and the weight member, and a combination of these configurations. Any of these configurations may be used.

Specific examples of the opening / closing body include an opening / closing body in which a plurality of slats are continuously provided in the opening / closing direction, a panel in which one or a plurality of slats are continuously provided, an opening / closing body formed of a sheet-like material, or a slat, a panel, and a sheet. An open / close body or the like obtained by appropriately combining a shape or the like.
As a particularly preferred embodiment of the opening / closing body, a fire-resistant cloth such as silica cloth is used. According to this aspect, the installation structure of the switchgear can be a structure having fireproof smokeproof performance, and since the lightweight fabric-type switchgear is used, the opening / closing operation of the switchgear is speeded up. be able to.

Further, the opening is arranged at a position closer to the front side of the upper frame part, and specific examples of the opening part include an aspect formed only on the front side of the upper frame part, The aspect formed only in the lower surface part of the upper frame part, the aspect formed from the hand front surface part of the said upper frame part to the lower surface part, etc. are included.
In addition, the opening may be anything that can be opened and closed by the door member, but from the viewpoint of improving maintainability, an opening having a size that allows at least a hand to be inserted by an operator who performs maintenance or the like is preferable. More preferably, the opening is of a size that can pass through all of the above-described feeding storage device or parts constituting the feeding storage device.

  Moreover, the said door member should just be what can open and close the said opening part, and this door member is the above-mentioned aspect which opens and closes the said opening part by rotating to a fulcrum, or the above-mentioned by sliding. A mode for opening and closing the opening, a mode for opening and closing the opening in a single-opening manner, a mode for opening and closing the opening in a double-opening manner, a mode for opening and closing the opening by being attached to and detached from the upper frame portion, etc. .

In the present specification, the “opening / closing body thickness direction” means the thickness direction of the opening / closing body in the closed state.
Further, in this specification, the “opening / closing body opening / closing direction” means a direction in which the opening / closing body opens / closes and is not a width direction or a thickness direction of the opening / closing body.
Further, in this specification, the “opening / closing body width direction” means a direction that is substantially orthogonal to the opening / closing direction of the opening / closing body and not the thickness direction of the opening / closing body.

The second means is characterized in that the opening is provided from the front side of the upper frame to the lower side of the upper frame.

Further, the third means is characterized in that the opening is formed to have a length substantially equal to or longer than the length in the opening / closing body width direction in the feeding and storing apparatus .

Since the above means is configured as described above , the following effects can be obtained.
According to the first means , it is possible to perform a maintenance operation or the like for the feeding and storing device from the front side of the frame member through the opening.
In addition, it is possible to perform maintenance work or the like on the elevator door, the upper side of the elevator car or the like through the opening.
Therefore, it is possible to provide an installation structure of the switchgear with improved workability such as maintenance work.

Furthermore, according to the second means , since the upper frame portion can be widely opened from the front side of the hand to the lower side, workability such as maintenance work can be further improved.

Furthermore, according to the third means , maintenance work or the like can be performed from the front side of the frame member over the substantially entire length in the opening / closing body width direction with respect to the feeding and storing device.
In addition, after the frame member is installed, it is also possible to install the payout storage device from the opening, which is excellent in response to on-site conditions during maintenance work and installation work.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, the structure 90 to which the switchgear installation structure A according to the present invention is applied will be described. The structure 90 is an elevator shaft that is a passage through which the elevator car 1 ascends and descends as shown in FIGS. A wall 93 is provided between 91 and the elevator hall 92.
The wall 93 has a substantially rectangular opening 94 that allows the elevator shaft 91 and the elevator hall 92 to communicate with each other, and a substantially hanging wall 93 a is formed above the opening 94. .
In addition, on the side of the elevator shaft 91 in the opening 94, a hanging door type elevator door 2 is disposed so as to open and close in the lateral width direction (left-right direction in FIG. 2).

The switchgear installation structure A according to the present invention is configured in a space closer to the elevator hall 92 than the elevator door 2 and within a substantially wall thickness of the falling wall 93a.
The installation structure A includes a frame member 10 that surrounds the space from at least three sides of the upper side and the left and right sides, and is disposed in the upper frame portion 11 of the frame member 10 and the opening / closing body 21 is moved downward from the upper frame portion 11. A feeding and storing device 20 is provided for feeding and storing in the same frame portion 11.

The frame member 10 is configured in a substantially U-shape including an upper frame portion 11 and left and right side frame portions 12 and 13, and is a passage surrounded by the upper frame portion 11 and the side frame portions 12 and 13 and the floor surface 95. Space S is secured.
The upper frame portion 11, the left side frame portion 12, and the right side frame portion 13 are made of a metal material such as stainless steel or a steel plate, and are joined by welding means or the like so that they can be easily attached to the opening 94 of the wall 93. It is framed integrally in advance.
In addition, each part of the upper frame part 11, the left side frame part 12, and the right side frame part 13 is formed separately in advance, and is configured in a substantially U-shape when attached to the opening 94. It is also possible to do.

According to a preferred example of the present embodiment, the upper frame portion 11 has a substantially cross-sectional shape L formed by connecting a hand front surface portion 11a that is substantially upright on the elevator hall 92 side and a lower surface portion 11c that is a top surface of the passage space S. It is formed in a letter shape.
Note that the cross-sectional shape of the upper frame portion 11 is not limited to the L-shaped cross section, and may be a shape in which substantially all or a part of the feeding and storing apparatus 20 can be disposed inside.

  An opening 11c3 (see FIG. 3) that is opened and closed by the door member 11c2 passes through a portion of the upper frame portion 11 that is closer to the front (leftward in FIGS. 1 and 3) and that corresponds to the feeding storage device 20. Is formed.

The opening portion 11c3 has a substantially L shape extending from the front surface portion 11a to the lower surface portion 11c, and is formed to have a length substantially equal to the length in the opening / closing body width direction of the feeding and storing device 20.
The height of the opening 11c3 is set to be substantially the same as or slightly larger than the height of the entire payout storage device 20.

  In addition, from the viewpoint of improving maintainability, the opening 11c3 is preferably formed to have a length substantially equal to or longer than the length in the opening / closing body width direction of the feeding and storing device 20, The apparatus 20 may be provided with a single or a plurality in the width direction of the opening / closing body in correspondence with a main part (for example, a shaft support part at both ends of the drive source 25 and the winding shaft 22) having a relatively large number of inspections. .

  In addition, from the viewpoint of improving maintainability, the opening portion 11c3 is preferably formed to have a height dimension substantially equal to the entire height dimension of the payout storage device 20, or a height dimension larger than the total height dimension. In the feeding and storing apparatus 20, a single or a plurality of parts may be provided in the height direction corresponding to a main part (for example, a shaft support part at both ends of the drive source 25 and the winding shaft 22) that has a relatively large number of inspections. Good.

  Further, the door member 11c2 has a substantially L-shaped cross section, and is supported by a pivotal support member such as a hinge disposed substantially horizontally near the upper end of the front hand portion 11a in the upper frame portion 11, and the pivotal support member is The opening 11c3 is opened and closed by rotating around the fulcrum.

  Between the shaft support member side of the door member 11c2 and the front front surface portion 11a of the upper frame portion 11, by maintaining the open state of the door member 11c2, the maintenance work for the payout storage device 20 is made favorable. A support device 11d is provided.

  According to the illustrated example, the supporting device 11d is configured such that the one piece portion 11d1 and the other piece portion 11d2 are rotatably joined to each other, and the substantially straight arrangement of the one piece portion 11d1 and the other piece portion 11d2 is in the longitudinal direction. The distal end portion of the one piece portion 11d1 is pivotally supported by the door member 11c2, and the distal end portion of the other piece portion 11d2 is pivoted to the front front surface portion 11a of the upper frame portion 11. It is installed by supporting.

  The support device 11d may be replaced with another mode as long as the open state of the door member 11c2 can be maintained. For example, one end side of the support device 11d is pivotally supported by the hand front surface portion 11a of the upper frame portion 11 and others. A projecting bar-like form in which the end side is engaged with the door member 11c2 in an open state, or a plurality of cylindrical bodies are configured to be telescopically extended and configured to resist a predetermined compressive force in the extended state. The mode etc. which were arrange | positioned between the hand front part 11a and the door member 11c2 of the open state may be sufficient.

Further, an engagement / disengagement member 11e such as a latch or a magnet is provided between the free end portion (tip portion) of the door member 11c2 and the lower surface portion 11c.
Therefore, the door member 11c2 is locked to the lower surface portion 11c when the door member 11c2 is closed by the engagement / disengagement member 11e, and the lock is released when the door member 11c2 is opened.

Each of the side frame portion 12 and the side frame portion 13 is made of a metal material such as stainless steel or a steel plate, has a substantially U-shaped cross section following the side surface of the opening 94 of the wall 93, and spreads toward the elevator hall 92 side. It is formed in a shape with good design properties, such as providing an inclined surface.
The side frame 12 is provided with a guide rail 12a for guiding the opening / closing body 21 in the opening / closing direction (vertical direction according to the illustrated example), and the side frame 13 is also provided with a similar guide rail 13a. .

Each guide rail 12a (13a) is processed integrally with the side frame portion 12 (13), so that the cross-section of the opening / closing body 21 in the width direction (left and right direction according to FIG. 2) is substantially concave. Is formed.
And between each guide rail 12a (13a) and the edge part of the opening-and-closing body 21 in the width direction, the opening-and-closing body 21 escapes in the direction away from each guide rail 12a (13a) in the opening-and-closing body width direction. A structure for a disaster prevention function is provided, such as a structure for blocking or a structure for blocking the passage of flames and smoke from the inside and the outside through the gap between the end of the opening / closing body 21 in the width direction and each guide rail 12a (13a). ing.

  In addition, each guide rail 12a (13a) of this Embodiment is reinforce | strengthened for the intensity | strength of each guide rail 12a (13a) with a simple structure by being integrally processed by the side frame part 12 (13). However, the guide rail 12a (13a) is configured separately from the side frame 12 (13) and the side frame 12 ( It is also possible to adopt a configuration fixed to the surface of 13).

  Further, the feeding storage device 20 includes an opening / closing body 21 for partitioning and opening the passage space S in the frame member 10 in the vertical direction, a winding shaft 22 for winding and unwinding the opening / closing body 21, and the winding Support brackets 23 and 24 (see FIG. 2) for rotatably supporting the shaft 22 at both ends, a drive source 25 for rotating the take-up shaft 22 via a transmission means 26, and the like.

  The opening / closing body 21 has a substantially rectangular sheet-like main body portion 21a capable of shielding the passage space S in a state where the upper end portion is suspended from the outer peripheral surface of the winding shaft 22, and an end portion of the main body portion 21a in the closing direction. It consists of a seat plate part 21b fastened substantially horizontally (at the lower end according to the illustrated example).

According to a preferred example of the present embodiment, the main body portion 21a is made of a silica cloth fabric that is excellent in fire resistance and is lightweight, and a plurality of substantially rectangular belt-like sheet materials that are long in the opening / closing body width direction are provided in the opening / closing body opening / closing direction. It may be configured to be connected, or may be configured from a single sheet material.
The material of the main body portion 21a is not limited to the above-described embodiment, and may be a glass cloth, a vinyl chloride resin sheet material subjected to fluorine processing, a synthetic resin sheet material including glass fibers, or the like. is there.

When the opening / closing body 21 is closed, the seat plate portion 21b abuts against the floor surface 95 of the structure 90 in the opening / closing body width direction, and when the opening / closing body 21 is opened, the opening / closing in the upper frame portion 11 is performed. It is a member that contacts the outer surface side of the body insertion hole 11c1, and is formed, for example, in a substantially inverted T shape in cross section.
And this seat board part 21b is comprised from the material which has fire resistance, such as a metal material, and when the opening / closing body 21 is closed, while extending the wrinkles and slack of the main-body part 21a with dead weight, it is a closed state opening / closing body. Smoke, flame, or the like is prevented from passing between 21 and the floor surface 95.

  The take-up shaft 22 is a shaft member provided over substantially the entire length of the upper frame portion 11 in the opening / closing body width direction, and is supported by support brackets 23 and 24 via rotation assisting members such as bearings at both ends thereof. It is supported substantially horizontally.

  Each of the support brackets 23 and 24 is a metal member having a substantially U-shaped cross section, and supports the end side of the take-up shaft 22 by its substantially vertical surface. It is fixed to the inner surface or the inner surfaces of the left and right side frame portions 12 and 13.

The drive source 25 includes an opening / closing machine 25a composed of an electric motor, a brake device 25b, and the like, and the rotational power is transmitted to the take-up shaft 22 through a transmission means 26 on the drive shaft of the opening / closing machine 25a.
And this drive source 25 is arrange | positioned above the winding shaft 22 by being fixed to the inner surface of the upper frame part 11 via the substantially L-shaped attachment bracket 25c.

The drive source 25 is electrically connected to a control unit (not shown), and is controlled based on signals from various disaster prevention sensors installed at appropriate positions of the structure 90 such as a smoke detection sensor and a flame detection sensor. Then, the brake device 25b is released. At that time, the opening / closing body 21 is drawn out in the closing direction by its own weight.
In addition, the drive source 25 is electrically connected to a manual operation switch (not shown) provided at an appropriate position on the frame member 10 side. In an emergency or the like, the drive source 25 is opened and closed by operating the manual operation switch. Has been made possible.
The means that triggers the opening / closing operation of the opening / closing body 21 is an electrical configuration or mechanical configuration other than the above (for example, a configuration in which the opening / closing body opens and closes in conjunction with a wire that is manually pulled). Etc.

  The transmission means 26 is a power transmission mechanism including a sprocket and a chain, a belt and a pulley, a plurality of gears, or a combination thereof, and the rotational power of the drive source 25 is converted to rotational power at a predetermined number of rotations. It is converted and transmitted to the winding shaft 22.

In the figure, reference numeral 30 denotes a ceiling portion constituting the ceiling surface of the elevator hall 92.
The ceiling portion 30 is disposed on the front side (elevator hall 92 side) of the upper frame portion 11 on the near side (the elevator hall 92 side), in proximity to or in contact with the front surface portion 11a, and a suspension member such as a suspension bolt (not shown) It is fixed to the structure 90 or the like by a bracket or the like.

An opening 31 that can be opened and closed by a door member 32 is formed in the ceiling 30 so as to penetrate in the vertical direction.
The opening 31 is arranged at a position appropriately separated from the front side 11a of the upper frame 11 to the front side (left side according to FIG. 1), and is sized so that a person can enter from the head side for maintenance or the like. More preferably, in order to improve maintainability to the upper side of the payout storage device 20, the width is approximately equal to or longer than the length in the opening / closing body width direction of the payout storage device 20. .

The door member 32 is a substantially rectangular plate-like member attached to the ceiling portion 30 so as to close the opening 31.
The door member 32 is supported at one end by the ceiling 30 via a hinge member such as a hinge, so that the opening 31 can be opened and closed, and between the other end and the ceiling 30. The other end side is engaged with and disengaged from the ceiling portion 30 through an engagement member (not shown) such as a latch or a magnet.

And the opening part 31 of the said structure enables inspection of the upper sides, such as the feeding storage apparatus 20, the door 2 for elevators, and the elevator cage | basket 1. FIG.
That is, from the opening 31 of the ceiling portion 30, for example, via the space above the payout storage device 20 in the opening 94 of the wall 93, the upper side of the payout storage device 20, the elevator door 2, the elevator rod 1, etc. Can be inspected.

Thus, according to the installation structure A having the above-described configuration, it is possible to perform maintenance work or the like on the feeding and storing apparatus 20 from the front side of the upper frame portion 11 through the opening 11c3 of the upper frame portion 11.
Moreover, for example, if the seat plate 21b of the opening / closing body 21 is removed from the opening 11c3 and all the main body 21a is wound on the winding shaft 22, the space below the wound main body 21a is interposed. Thus, the upper side of the elevator door 2 and the elevator car 1 can be inspected. In addition, in order to acquire this effect, it is preferable to set it as the aspect which connected the baseplate part 21b with respect to the main-body part 21a so that attachment or detachment was possible.

In addition, the opening 11c3 of the upper frame portion 11 is formed over substantially the entire length in the opening / closing body width direction of the feeding and storing device 20, and the opening 11c3 is formed to have a height dimension larger than the total height of the feeding and storing device 20. Therefore, the maintenance work for the payout storage device 20 can be easily performed over the entire width of the opening / closing body and in the vertical direction, the parts of the payout storage device 20 can be replaced, the entire payout storage device 20 can be replaced, or When installing the frame member 10 and the payout storage device 20, it is also possible to install the payout storage device 20 from the opening 11c3 after the frame member 10 is set.
Moreover, since the opening portion 11c3 is also opened on the lower surface portion 11c side, maintenance work for the lower portion of the feeding and storing apparatus 20 can be easily performed.

  Note that, according to a preferred example of the above-described embodiment, substantially all of the payout storage device 20 is inspected from the opening 11c3 of the upper frame portion 11 so that substantially the entire vertical storage device 20 can be inspected. And the vertical dimension of the opening 11c3 of the upper frame portion 11 is larger than the overall height of the payout storage device 20, but a part of the payout storage device 20 is disposed in the upper frame portion 11. It is also possible to inspect a part of the opening 11c3.

  Further, according to a preferred example of the above-described embodiment, the feeding storage device 20 and the frame member 10 are fixed by fixing the feeding storage device 20 in the upper frame portion 11 and integrating the feeding storage device 20 and the frame member 10. Although the workability at the time of installing in the opening part 94 of the structure 90 is improved, as for this delivery storage apparatus 20, the substantially whole or one part is arrange | positioned corresponding to the opening part 11c3 of the upper frame part 11. FIG. If it does in this way, you may suspend and fix to the falling wall 93a with suspension members, such as a suspension bolt.

Further, according to a preferred example of the above-described embodiment, the door member 11c2 is rotated along the vertical direction with the substantially horizontal shaft stop member as a fulcrum. However, as in the installation structure B shown in FIG. In addition, the door member 11c2 ′ may be rotated in the front-rear direction using a substantially vertical shaft stop member as a fulcrum.
According to this installation structure B, since it is not necessary to support the door member 11c2 ′ at the open position, the support device 11d in the installation structure A can be omitted, and the productivity of the frame member 10 can be improved.

Further, according to the above embodiment, the door member 11c2 and the door member 11c2 ′ are opened and closed, and the door member 11c2 ″ is moved in the vertical direction as in the installation structure C shown in FIG. You may make it open and close by sliding.
According to this installation structure C, the opening 11c3 ″ that is opened and closed by the door member 11c2 ″ is formed only in the hand front surface portion 11a of the upper frame portion 11.
The door member 11c2 ″ is guided by guide rails 11c4 ″ provided at the left and right ends of the opening 11c3 ″ and slides in the vertical direction. At the closed position, the door member 11c2 ″ is moved by an engaging / disengaging member 11c5 ″ such as a magnet or a latch. It is comprised so that it may engage with the hand front surface part 11a.

  In addition, since parts other than the above-described structure in the installation structure B and the installation structure C have substantially the same structure as the installation structure A, the same detailed description as that of the installation structure A will be omitted. To do.

The longitudinal cross-sectional view which shows an example of the installation structure of the switchgear concerning this invention. The front view of the installation structure of the switchgear. The principal part longitudinal cross-sectional view of the installation structure of the switchgear. The principal part longitudinal cross-sectional view which shows the other examples of the installation structure of the switchgear concerning this invention. The principal part sectional drawing which shows the other example of the installation structure of the switchgear concerning this invention from the upper side.

Explanation of symbols

2: Elevator door 10: Frame member 11: Upper frame portion 11a: Hand front surface portion 11c: Lower surface portion 11c2: Door member 11c3: Opening portion 12, 13: Side frame portion 21: Opening and closing body 20: Feeding storage device A: Installation structure

Claims (8)

A frame member that encloses the space on the front side of the elevator door in at least the upper frame part and the left and right side frame parts in a substantially U-shape from three sides, and opens and closes so as to partition and open the space in the frame member in the vertical direction. A feeding and storing device that feeds the body from the upper frame portion and stores the body in the upper frame portion, and is integrally processed or fixed to each side frame portion so as to surround the end in the width direction of the opening and closing body In the installation structure of the switchgear comprising a guide rail that leads in the direction,
The feeding and storing device includes a winding shaft that winds and unwinds the opening and closing body, and a drive source that rotates the winding shaft, and substantially all or a part of the winding shaft is disposed in the upper frame portion. ,
The frame member has an opening portion that is opened and closed by a door member at a portion closer to the front side of the upper frame portion and corresponding to the feeding and storing device in the upper frame portion,
The closing body includes a shieldable body portion passing path space while being suspended to an upper end portion on the outer peripheral surface of the winding shaft, Ru is fastened detachably on the end of the closing direction of the body portion And a seat plate portion provided so as to contact the outer surface side of the opening and closing body insertion hole in the upper frame portion ,
The winding shaft is rotatably supported by support brackets on both ends thereof , and the opening is formed on the lower side of the main body when the seat plate portion is removed and all of the winding shaft is wound around the winding shaft. installation switchgear which the upper side and the elevator shaft of an elevator door in communication and a space to allow inspection of the upper side of the elevator door and elevator cage from the opening has to be ensured and Construction.   2. The switchgear installation structure according to claim 1, wherein the opening is provided from the front side of the upper frame to the lower side of the upper frame.   3. The installation of the opening / closing device according to claim 2, wherein the door member opens and closes the opening by rotating about a pivotal support member disposed on the front face portion of the upper frame portion as a fulcrum. Construction.   2. The opening / closing device installation structure according to claim 1, wherein the door member is opened and closed by sliding in a vertical direction. A ceiling part is disposed on the front side of the front surface part of the upper frame part, and an opening part penetrating in the vertical direction is formed in the ceiling part,
The opening / closing device according to any one of claims 1 to 4, wherein a space is provided for communicating the upper side of the opening, the upper side of the feeding storage device, the upper side of the elevator door, and the elevator shaft. Installation structure.   6. The opening / closing device according to claim 1, further comprising a device for maintaining the open state of the door member. A support device for maintaining the open state of the door member is provided,
This support device is a device in which the one piece portion and the other piece portion are rotatably joined and the substantially linear arrangement of the one piece portion and the other piece portion is maintained by the compressive force in the longitudinal direction. The tip of the one piece is pivotally supported on the door member, and the tip of the other piece is pivotally supported on the front surface of the upper frame portion. The installation structure of the switchgear of claim | item 3.   The opening / closing device according to any one of claims 1 to 7, wherein the opening is formed to have a length substantially equal to or longer than a length in a width direction of the opening / closing body in the feeding and storing device. Installation structure.

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