JP2020159019A - Sheet installation device, installation method of the sheet installation device, and temporary removal method of the sheet installation device - Google Patents

Abstract

To easily install and remove a sheet.SOLUTION: A sheet installation device comprises: a first sheet 10 vertically extended to partition a space; and a delivery storage mechanism 20 for deliverying the first sheet 10 downward and storing it upward. The first sheet 10 is integrally provided with a sheet main body 11 extended downward so as to partition a space, and an engaging/disengaging fixing part 13 fixed detachably to an immovable part on the lower end side of the sheet main body 11, and the delivery storage mechanism 20 is provided with an engaging/disengaging part 30 attachable/detachable to/from a structure P.SELECTED DRAWING: Figure 1

Description

The present invention relates to an installation device for installing a sheet so as to cover a structure such as a building or a scaffold, an installation method for the sheet installation device, and a method for temporarily removing the sheet installation device.

Conventionally, in this type of invention, for example, as described in Patent Document 1, a rectangular seat body, a large number of belts provided around the seat body, and a belt fastening body for fastening each belt are used. There is a curing sheet in which the belt is wound around a pipe or the like constituting a temporary scaffold and fastened by the belt fastening body.

Japanese Unexamined Patent Publication No. 2018-12979

However, according to the above-mentioned prior art, when the seat body is installed on the temporary scaffolding, it is necessary to wind a large number of belts around a pipe or the like and fasten them with a belt fastening body. Further, when removing the seat body, it is necessary to remove a large number of belts from pipes and the like, and to fold and store the seat body removed from the temporary scaffolding.
In particular, when a strong wind due to a typhoon or the like is expected after installation, it becomes necessary to temporarily remove the seat body, which takes time and effort.

In view of such problems, the present invention has the following configurations.
A first sheet extending in the vertical direction to partition the space and a feeding storage mechanism for feeding the first sheet downward and storing the first sheet upward are provided, and the first sheet partitions the space. A seat body that is fed downward and a engaging / disengaged fixing portion that is detachably fixed to an immovable portion on the lower end side of the seat body are integrally provided, and the feeding / storing mechanism is attached / detached to / from the structure. A seat installation device characterized by being provided with a possible engagement / disengagement section.

Since the present invention is configured as described above, the seat can be easily installed and removed.

It is a front side perspective view which shows an example of the seat installation apparatus which concerns on this invention. It is a back side perspective view which shows the seat installation device. It is a side view which shows the example of the feeding storage mechanism in an enlarged manner. It is a perspective view which shows an example of the engagement / disengagement fixing part. It is a front view which shows an example of the installation procedure of the sheet installation apparatus sequentially in (a) and (b). It is a front view which shows in order (a) (b) an example of the procedure for temporarily removing the sheet installation device. It is a side view which shows the other example of the sheet installation apparatus which concerns on this invention, (a) shows the state which the 1st sheet is unfolded, and (b) shows the state which the 1st sheet is housed upward.

In this embodiment, the following features are disclosed.
The first feature is that the first sheet is provided with a first sheet extending in the vertical direction to partition the space and a feeding storage mechanism for feeding the first sheet downward and storing the first sheet upward. Is integrally provided with a seat body that is fed downward so as to partition a space, and an engagement / disengagement fixing portion that is detachably fixed to an immovable portion on the lower end side of the seat body. , A detachable part is provided for the structure (see FIGS. 1 to 7).
Here, examples of the immovable portion include the structure itself, members such as scaffolding covering the structure, floor surface, ground, and the like.
In addition, examples of the structure include temporary scaffolding at a construction site, buildings, buildings, vehicles, ships, and the like.

As a second feature, in order to improve the sheet storability, the feeding and storing mechanism includes a winding shaft for winding and feeding the first sheet on the upper side thereof (see FIGS. 1 and 3). ..

As a third feature, in order to improve the seat storability by a simple structure, the feeding storage mechanism includes a string-shaped member whose lower end side is fastened to the lower end side of the first sheet, and the string-shaped member is provided. By pulling it upward, the first sheet is lifted up and stored (see FIG. 7).

As a fourth feature, in order to improve the detachability to the structure, the engaging / disengaging portion is formed in a hook shape that can be engaged / disengaged from the structure (see FIGS. 1 to 3).

As a fifth feature, in order to further improve the detachability to the structure, the engaging / disengaging portion is provided so as to be adjustable in position in the lateral width direction with respect to the feeding / retracting mechanism (see FIG. 2).

As a sixth feature, in order to improve workability at the time of temporary removal, the engagement / disengagement fixing portion of the first sheet is attached / detached to / detached from the fixing portion which is fixed and fixed in advance to the immovable portion. It is possible and includes a fitting / removing portion connected to the lower end side of the seat body (see FIG. 4).

As a seventh feature, in order to improve the workability of fixing the lower end side of the seat, the engagement / disengagement fixing portion of the first seat includes a weight body that is placed and fixed on a stationary portion on the lower side ( Not shown).

The eighth feature is that a second sheet is provided side by side on the side of the first sheet in order to further improve workability at the time of temporary removal, and the second sheet is the second sheet. A sheet attachment / detachment portion that can be attached / detached to the side end side of one sheet and a fastening portion that is fastened to the structure are integrally provided (see FIGS. 1 and 2).

As a ninth feature, in order to improve the fixing workability of the second seat, a plurality of the seat attachment / detachment portions are provided at intervals in the vertical direction (see FIG. 2).

The tenth feature is an installation method of the sheet installation device having good installation workability, in which two or more of the first sheets are installed at intervals in the width direction, and the adjacent first sheet is installed. It includes a step of fastening the second sheet to the structure between the sheets and a step of connecting the second sheet to the adjacent first sheet (see FIG. 5).

The eleventh feature is a temporary removal method of the sheet installation device having good temporary removal workability, in which the first sheet and the second sheet are left from the state where the second sheet is installed. A step of removing the first sheet is included (see FIG. 6).

<First embodiment>
Next, a specific embodiment having the above characteristics will be described in detail with reference to the drawings. In the following description, the "sheet thickness direction" means the thickness direction of the first sheet in the unfolded and unfolded state. Further, the "sheet width direction" means a direction substantially orthogonal to the direction in which the first sheet is fed, and not a sheet thickness direction.

The seat installation device A of the present embodiment includes a first sheet 10 extending in the vertical direction to partition a space, a feeding storage mechanism 20 for feeding out the first sheet 10 downward and storing the first sheet 10 upward, and a feeding and feeding mechanism 20. It includes a engaging / disengaged portion 30 for attaching / detaching the storage mechanism 20 to / from the structure P, and a second sheet 50 arranged side by side with the first sheet 10 (see FIG. 1).

According to the illustrated example, the structure P uses a plurality of vertical pipes P1, horizontal pipes P2, a plurality of scaffolding plates (not shown) substantially parallel to each other at intervals in the vertical direction, and the like to provide temporary scaffolding for a construction site or the like. It is configured. Then, the first sheet 10 and the feeding and storing mechanism 20 are used as a curing sheet for covering the structure P.

The first sheet 10 includes a seat body 11 that is extended downward so as to partition a space, a engagement / disengagement fixing portion 13 that is detachably fixed to an immovable portion on the lower end side of the sheet body 11, and a second sheet 50. A half portion 41 of the seat attachment / detachment portion 40 for attaching / detaching to / from the seat is integrally provided.

The sheet body 11 is a flexible strip-shaped or rectangular sheet material, and is formed in a long shape extending over the upper and lower ends of the structure P.
The sheet material constituting the sheet body 11 is a sheet material made of cloth or synthetic resin (for example, vinyl chloride resin sheet material, etc.), a flame-retardant cloth such as glass cloth or silica cloth, or a synthetic resin containing glass fiber. It can be a sheet material, other sheet material, or the like.

The engagement / disengagement fixing portion 13 includes a rod-shaped weight body 13c fixed to the lower end side of the seat body 11, a fixing portion 13a fixed in advance to the lower horizontal pipe P2 which is an immovable portion, and a fixing portion. It is provided with a fitting / removing portion 13b that can be fitted / removed to the 13a and is connected to the lower end side of the seat body 11.

The weight body 13c is a rod-shaped member that is continuous over substantially the entire length of the seat body 11 in the lateral width direction. The weight body 13c is formed of, for example, a pipe material or a shaft-shaped member made of a hard material such as metal.
The weight body 13c is continuously connected to the lower end side of the seat body 11 in the lateral width direction, and the seat body 11 is pulled downward by its own weight and the bending of the seat body 11 is suppressed.

According to an example shown in FIG. 4, the fixing portion 13a is composed of a locking member 13a1 that is locked to the horizontal pipe P2 and a fitting / removing member 13a2 that is connected to the upper end side of the locking member 13a1. ..

The locking member 13a1 is a flexible member that is bifurcated downward and is composed of, for example, a strip-shaped object or a string-shaped object.
In a preferable example of the locking member 13a1, one half and the other half of the velvet fastener (sometimes referred to as a hook-and-loop tape or a hook-and-loop fastener) are formed on one half and the other half, respectively. A part is provided. As shown in FIG. 4, these one piece and the other piece are detachably connected to each other on the lower side of the horizontal pipe P2.

As another example of the locking member 13a1, the velvet fastener can be replaced with another engaging / detaching tool such as a hook or a button. Further, as another example, the locking member 13a1 can be a string-like object tied under the lateral pipe P2.

Further, the fitting / removing portion 13b is composed of a fastening member 13b1 fastened to the lower end side of the seat body 11 and a fitting / removing member 13b2 fastened to the lower end side of the fastening member 13b1.

The fastening member 13b1 is composed of, for example, a flexible strip-shaped object or a string-shaped object, and is fastened to the first sheet 10 so as to penetrate the sheet body 11 of the first sheet 10. The fastening member 13b1 can also be fastened to the seat body 11 by other fastening means such as stitching, adhesion, and welding.

The fitting / removing member 13b2 is a member that is manually fitted / removed from the fitted / detached member 13a2 on the fixing portion 13a side. It is possible to use a detachable tool called a buckle for the fitting / removing member 13b2 and the fitted / detaching member 13a2. In addition, it is also possible to use velvet fasteners and attachment / detachment tools such as hooks, buttons, and magnets.

Further, the feeding and storing mechanism 20 includes a winding shaft 21 for winding and feeding the first sheet 10 on the upper side thereof, and a support 22 for supporting the winding shaft 21 (FIGS. 1 and 1). (See FIG. 3).

The take-up shaft 21 is a shaft-shaped member rotatably supported by the support body 22, and the upper end side of the first sheet 10 is fastened to the outer peripheral portion thereof.
A sprocket (not shown) is integrally provided on one end side of the take-up shaft 21, and the upper half side of the annular operating body 23 is hung around the sprocket.
The annular operating body 23 is, for example, a long endless ring-shaped member such as a chain, and its lower end side extends below the support 22 in a free hanging shape. The annular operating body 23 is pulled by an operator or the like to rotate, and the rotational force is transmitted to the sprocket and the take-up shaft 21.

Further, the take-up shaft 21 is provided with an engagement / disengagement mechanism for stopping and restarting the feeding of the first sheet 10 at an arbitrary position, if necessary. The engagement / disengagement mechanism may be configured to include, for example, a claw wheel coaxially provided on the take-up shaft 21 and a claw member that engages with the claw wheel so as to be engaged / disengaged.
Further, as another example of the winding shaft 21, one or both of the feeding operation and the winding operation may be electrically performed. In this case, an electric motor for rotating the take-up shaft 21 may be incorporated in the feeding and storing mechanism 20, or an electric rotary tool such as an electric screwdriver may be connected from the outside and the take-up shaft 21 is rotated by the electric rotary tool. It may be an aspect.

The support 22 is formed in a horizontally long frame shape (a U-shaped frame shape in a plan view according to the illustrated example) that rotatably supports both end sides of the take-up shaft 21.

The engaging / disengaging portion 30 is formed in a hook shape that can be hooked on the horizontal pipe P2. The engaging / disengaging portion 30 is provided with respect to the support 22 so as to move in the lateral width direction via the rail member 22a and adjust its position.

The rail member 22a, for example, fits in a concave-convex shape with respect to the base end side (lower end side in the drawing) of the engagement / disengagement portion 30, and supports the engagement / disengagement portion 30 so that it cannot be pulled out and can slide laterally.

The engagement / disengagement portion 30 is provided with a dropout prevention means as necessary so that the engagement / disengagement portion 30 is hung on the horizontal pipe P2 and does not easily come off upward. The fall-off preventing means may be, for example, a member that is close to the horizontal pipe P2 from the lower side after the engaging / disengaging portion 30 is hung on the horizontal pipe P2.

The second sheet 50 attaches / detaches the sheet main body 51 extending in the vertical direction, the fastening portion 52 fastened to the vertical pipe P1 of the structure P, and the sheet main body 51 to the side end side of the first sheet 10. It integrally has the other half 42 of the seat attachment / detachment portion 40 (see FIG. 2).

The sheet body 51 is formed in a long strip shape extending in the vertical direction from the same flexible sheet material as the sheet body 11 of the first sheet 10.
The vertical length of the seat body 51 is substantially the same as that of the seat body 11 of the first sheet 10.

A plurality of fastening portions 52 are fastened to the back surface of the seat body 51 at intervals in the vertical direction. Each fastening portion 52 is a long flexible member substantially similar to the locking member 13a1 (see FIG. 4) described above, and the central portion in the longitudinal direction thereof is fastened to the back surface of the seat body 51. ..
The fastening portion 52 is detachably fastened so as to be wound around the vertical pipe P1. The fastening means may be a mode using a velvet fastener like the locking member 13a1, a mode to be tied to the vertical pipe P1, a mode using other attachment / detachment tools, and the like.

The vertical spacing of the plurality of fastening portions 52 is set so as to correspond to the vertical spacing of the plurality of scaffolding plates (not shown) constituting the structure P as an example of good attachment / detachment workability. According to this configuration, an operator or the like can perform attachment / detachment work of the corresponding fastening portion 52 at each scaffold.

The seat attachment / detachment portion 40 is composed of one half portion 41 that is elongated in the vertical direction and the other half portion 42 that is attached / detached to / from the one half portion 41. For the seat attachment / detachment portion 40, for example, what is called a wire fastener, a zipper, or the like may be used.
A plurality of one-half portions 41 of the seat attachment / detachment portion 40 are fastened to the side end side of the first seat 10 at intervals in the vertical direction. A plurality of the other half portions 42 are fastened to the side end sides of the second sheet 50 so as to correspond to the plurality of one half portions 41, respectively.
As described above, in the illustrated example, a plurality of sheet attachment / detachment portions 40 are arranged intermittently in the vertical direction as a particularly preferable embodiment, but as another example, the plurality of sheet attachment / detachment portions 40 are replaced with the plurality of sheet attachment / detachment portions 40 in the vertical direction. It is also possible to use a single long sheet attachment / detachment portion that is continuous with the seat.

Next, a method of installing the seat installation device A having the above configuration on the structure P and a method of temporarily removing the seat installation device A will be described in detail.

The seat installation device A is installed by installing two or more (two according to the illustrated example) first sheets 10 at intervals w in the width direction, and two adjacent first sheets 10, It includes a step of fixing the second sheet 50 to the structure between 10 and a step of connecting the second sheet 50 between the adjacent first sheets 10 and 10.

More specifically, as shown in FIG. 5A, two first sheets 10 and 10 are arranged on both sides of the vertical pipe P1 with a vertical pipe P1 in between, and these two first sheets are arranged. The upper end sides of 10 and 10 are hooked to the upper horizontal pipe P2 via the engagement / disengagement portions 30, respectively.

Then, for each of the first seats 10, the seat main body 11 is extended downward, and the engagement / disengagement fixing portion 13 on the lower end side of the seat main body 11 is fixed to the horizontal pipe P2.
The distance w between these two first sheets 10 and 10 is appropriately adjusted so that the second sheet 50 is connected between the adjacent sheet bodies 11 and 11 in a later step. For this adjustment, each feeding and storing mechanism 20 may be slid laterally with respect to the engaging / disengaging portion 30.

Then, the lower end side of each first sheet 10 is connected to the lower horizontal pipe P2 via the engagement / disengagement fixing portion 13.

Next, the second seat 50 is installed so as to be located between the seat bodies 11 and 11 of the first seats 10 and 10 on both sides. The second sheet 50 is fastened to the vertical pipe P1 by the fastening portions 52 at a plurality of points in the vertical direction. Further, both ends of the second sheet 50 in the width direction are connected to the first sheets 10 and 10 on both sides by a plurality of sheet attachment / detachment portions 40 spaced in the vertical direction (see FIG. 5B). ).
The step of fastening the second sheet 50 to the vertical pipe P1 may be before the step of connecting the second sheet 50 to the first sheet 10, but it can also be performed after the step.

Further, as a method of temporarily moving out of the seat installation device A, the first sheet 10 is removed from the state in which the first sheet 10 and the second sheet 50 are installed, leaving the second sheet 50.

More specifically, first, as shown in FIG. 6, for each of the first sheets 10, the engagement / disengagement fixing portion 13 on the lower end side is separated into the fixing portion 13a and the fitting / detaching portion 13b, and the sheet body 11 is fed and stored. It is wound up by the mechanism 20. The separated fixing portion 13a is left in a state of being connected to the lower horizontal pipe P2 (see FIGS. 6A and 6B).

Next, the first sheets 10 and 10 on both sides are removed from the upper horizontal pipe P2, respectively, and the second sheet 50 is left in a state of being anchored to the vertical pipe P1 (FIG. 6 (FIG. 6). b) See).

Therefore, according to the installation method of the seat installation device A and the seat installation device A and the temporary removal method of the seat installation device A having the above configuration, there is less work of folding the sheet and work of storing the folded sheet, and the sheet can be used. There are few places to attach / detach to the structure P. Therefore, the sheet installation work, the sheet removal work, and the like can be easily performed.
In particular, when the first sheet 10 is temporarily removed due to strong wind or the like after installation, the second sheet 50 will be left, but the left and left second sheet 50 will be left. Since it has a relatively narrow band shape, it is less adversely affected by strong winds.

<Second embodiment>
Next, the seat installation device B shown in FIG. 7 will be described.
Since the seat installation device B is a modified version of the seat installation device A, the modified portion is mainly described in detail, and the configuration that functions substantially the same as the seat installation device A is the same reference numeral. Is added to omit the detailed description.

The seat installation device B is a sheet installation device A in which the feed-out storage mechanism 20 is replaced with the feed-out storage mechanism 60.

The feeding / retracting mechanism 60 includes a support 61 integrated with the engaging / disengaging portion 30, and a string-shaped member 62 extending downward from the support 61, and pulls the string-shaped member 62 upward. The first sheet 10 is configured to be lifted up and stored.

The support 61 is a long frame having substantially the same shape as the support 22. The upper end of the first sheet 10 is fastened to the support 61. Further, the take-up shaft 61a is supported on the support body 61 so as to take up and take out the string-shaped member 62.

The take-up shaft 61a is supported inside the support 61 so as to rotate in both directions, and the upper end portion of the string-shaped member 62 is fastened to the outer peripheral surface thereof.
The take-up shaft 61a may be rotated by the annular operating body 23 or may be rotated by an electric motor or the like, similarly to the seat installation device A.

The string-shaped member 62 may be a flexible long member. For the string-shaped member 62, for example, a metal wire, a synthetic resin wire, a wire of another material, a chain, a string, or the like is used.
As shown in FIG. 7, the string-shaped member 62 is provided in a substantially corrugated shape in which the first sheet 10 is inserted at a plurality of locations spaced apart from each other in the vertical direction. The upper end of the string-shaped member 62 is fastened to the outer peripheral surface of the take-up shaft 61a, and the lower end is fastened to the lower end side of the sheet body 11.

In the seat installation device B having the above configuration, if the string-shaped member 62 is wound and pulled by the winding shaft 61a in a state where the first sheet 10 is extended downward (see FIG. 7A), the first Sheet 10 is lifted up and stored so as to be brought closer to the support 61 side (see FIG. 7B).
On the contrary, if the string-shaped member 62 is unwound from the take-up shaft 61a, the first sheet 10 that has been tucked up is expanded downward and becomes flat (see FIG. 7A).
Therefore, according to the seat installation device B, the seat installation work, the seat removal work, and the like can be easily performed in the same manner as the seat installation device A described above.

In the seat installation device B, as a preferred embodiment of the first sheet 10, a plurality of creases extending in the lateral direction are provided at intervals in the vertical direction. In this way, the work of pulling up the first sheet 10 can be smoothly performed, and the raised first sheet 10 has a good design as shown in FIG. 7B. It can be stored in a bellows shape with a vertical cross section.

<Other variants>

According to the above embodiment, the engagement / disengagement fixing portion 13 on the lower end side of the first sheet 10 is fixed to the lower horizontal pipe P2 to be fixed, but as another example of the engagement / disengagement fixing portion 13. It is also possible to use a weight body that is placed and fixed on the immovable part on the lower side. In this configuration, for example, the fixing portion 13a and the fitting / removing portion 13b may be omitted from the seat installation device A, and the weight of the weight body 13c may be appropriately set.
According to this configuration, the lower end side of the first sheet 10 can be fixed by a simple operation of placing the weight body 13c on an immovable portion such as the ground or the floor surface.

Further, according to the above embodiment, the weight body 13c is a rod-shaped member continuous in the width direction, but as another example, the weight body 13c is replaced with a plurality of weight bodies divided and arranged in the width direction. It is also possible to do.

Further, according to the above embodiment, the first sheet 10 and the second sheet 50 are fixed to the vertical pipe P1 and the horizontal pipe P2 constituting the structure P, but as another example, The first sheet 10 and the second sheet 50 stop at a convex portion (sometimes called a receiving metal fitting, a receiving tool, etc.) (which may be called a receiving metal fitting, a receiving tool, etc.) that projects radially outward from the vertical pipe P1 and receives the scaffolding plate. You may wear it.
As yet another example, it is also possible to allow the first sheet 10 and the second sheet 50 to be anchored to the scaffolding plate constituting the structure P, the structure P itself, or other immovable parts. is there.

Further, in the seat installation device B shown in FIG. 7, the string-shaped member 62 is wound around the take-up shaft 61a and pulled, but as another example, the string-shaped member 62 is manually pulled and pulled. It is also possible to hang the string-shaped member 62 on a pulley and pull it.

Further, according to the above embodiment, the structure P is used as a scaffold for a construction site or the like, but as another example, the structure P is used as a structure other than the scaffold, and the seat installation device A or the seat is installed on this structure. It is also possible to have device B installed.
That is, the structure to which the seat installation devices A and B are installed can be a general house, a housing complex, an office building, a factory building, a public facility, or the like, a vehicle, a ship, or the like. ..

Further, according to the above embodiment, the seat installation device is used as the curing sheet installation device, but as another example, the seat installation device is used to prevent a bird fence or a play space for ball games from being covered. It can also be used as an installation device for ball nets, other sports nets, fences, seats, etc.

Further, according to the above embodiment, the first sheet 10 and the second sheet 50 are arranged in the same plane, but as another example, these sheets are arranged so as to sandwich the protruding corner corner portion, or It is also possible to arrange these sheets so as to sandwich the corners inside the corners. For example, in a mode in which a corner portion or a corner portion is sandwiched, a second sheet 50 is installed on the vertical pipe P1 at the corner portion or the corner portion, and the first sheet 10 is installed on both adjacent portions thereof. Just do it.

Further, the present invention is not limited to the above-described embodiment, and can be appropriately changed without changing the gist of the present invention.

10: First sheet 20: Feeding and storing mechanism 11: Seat body 13: Engagement and disengagement fixing part 13a: Fixed part 13b: Fitting and removing part 13c: Weight body 20,60: Feeding and storing mechanism 21,61a: Winding shaft 22, 61: Support 22a: Rail member 23: Ring operation body 30: Engagement / disengagement part 40: Seat attachment / detachment part 50: Second seat 51: Seat body 52: Fastening part 62: String-shaped member A, B: Seat installation device P: Structure P1: Vertical pipe P2: Horizontal pipe

Claims (11)

It is equipped with a first sheet extending in the vertical direction to partition the space, and a feeding storage mechanism for feeding the first sheet downward and storing it upward.
The first sheet integrally includes a seat body that is fed downward so as to partition a space, and an engagement / disengagement fixing portion that is detachably fixed to an immovable portion on the lower end side of the sheet body. A seat installation device characterized in that the feeding and storing mechanism is provided with a detachable portion that can be attached to and detached from the structure. The sheet installation device according to claim 1, wherein the feeding and storing mechanism includes a winding shaft for winding and feeding the first sheet on the upper side thereof. The feeding storage mechanism includes a string-shaped member whose lower end side is fastened to the lower end side of the first sheet, and by pulling the string-shaped member upward, the first sheet is lifted up and stored. The seat installation device according to claim 1. The seat installation device according to any one of claims 1 to 3, wherein the engaging / disengaging portion is formed in a hook shape that can be engaged / disengaged from a structure. The seat installation device according to any one of claims 1 to 4, wherein the engaging / disengaging portion is provided so as to be adjustable in position in the lateral width direction with respect to the feeding / storing mechanism. The engagement / disengagement fixing portion of the first sheet includes a fixing portion that is fixed and fixed to an immovable portion in advance, and a fitting / detaching portion that is removable from the fixing portion and is connected to the lower end side of the seat body. The seat installation device according to any one of claims 1 to 5, wherein the seat installation device is provided. The seat installation device according to any one of claims 1 to 5, wherein the engagement / disengagement / fixing portion of the first sheet includes a weight body that is placed and fixed on a stationary portion on the lower side. A second sheet arranged side by side with the first sheet is provided.
Claims 1 to 1, wherein the second sheet integrally has a removable sheet attachment / detachment portion on the side end side of the first sheet and a fastening portion to be fastened to a structure. 7. The seat installation device according to any one of the items. The seat installation device according to claim 8, wherein a plurality of the seat attachment / detachment portions are provided at intervals in the vertical direction. The method for installing the sheet installation device according to claim 8 or 9, wherein the two or more first sheets are installed at intervals in the width direction, and the first sheet adjacent to the first sheet. A method for installing a sheet installation device, which comprises a step of fixing the second sheet to a structure and a step of connecting the second sheet to the adjacent first sheet. The method for temporarily removing the sheet installation device according to claim 8 or 9, wherein the first sheet is removed from the state in which the first sheet and the second sheet are installed, leaving the second sheet. A method for temporarily removing a seat installation device, which comprises a step of performing.

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