Switchgear installation structure and construction method therefor

Abstract

To provide a switchgear installation structure and a construction method therefor, even if flames and heat from a fire act on an outer face fastened with a fastening device in a wooden frame, which can prevent the loosening, falling or the like of the fastening device.SOLUTION: A switchgear installation structure comprises a fastening device M1 and a flexible fireproof insulation material 50. A shaft part of the fastening device M1 passes through a part to be attached as a part of the switchgear 1, and is further inserted into a wooden frame X to fix the switchgear 1 to the wooden frame X. The part to be attached has a first face facing an attachment face of the wooden frame X and a second face other than the first face. The flexible fireproof insulation material 50 is arranged so as to interpose between the first face of the part to be attached and the wooden frame X, and so as to cover a required part of the second face of the part to be attached.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an installation structure of an opening / closing device for installing an opening / closing device that opens and closes an opening in a wooden structure, and a construction method thereof.

Background Art

[0002] As described in Patent Document 1, for example, a general opening / closing device attaches a guide rail for guiding an opening / closing body in a closing direction to a steel material constituting a building structure by a fastener such as a screw or a bolt.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in recent years, there are cases where a large building structure is made of wood, and a large shutter device such as a weight shutter is installed on the wooden structure. In such a case, a relatively heavy guide rail is attached to the wooden structure by a fastener such as a screw or a bolt. However, in the event of a fire, heat from the fire is transmitted to the fastener, and the fastening portion of the fastener in the wooden structure may be thermally deteriorated, resulting in loosening or falling off of the fastener.

Means for Solving the Problems

[0005] In view of such problems, one aspect of the present invention has the following configuration. An installation structure of an opening / closing device for opening and closing an opening, the installation structure being configured to install the opening / closing device on a wooden housing, the installation structure comprising: a fixing tool having a shaft portion that can be inserted into the wooden housing and a head portion provided at the rear end of the shaft portion; and a flexible fireproof and heat-insulating material having fire resistance, heat insulation, and flexibility. The fixing tool is configured to fix the opening / closing device to the wooden housing by inserting the shaft portion through a portion to be attached, which is a part of the opening / closing device, and inserting the shaft portion into the wooden housing. The portion to be attached has a first surface facing the mounting surface of the wooden housing and a second surface other than the first surface. The flexible fireproof and heat-insulating material is interposed between the first surface of the portion to be attached and the mounting surface of the wooden housing and is arranged to cover a required portion of the second surface of the portion to be attached.

Advantages of the Invention

[0006] Since the present invention is configured as described above, even if flames or heat due to a fire act on the outer surface of the wooden housing where the fixing tool is fixed, loosening or falling off of the fixing tool can be prevented.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Embodiments for Carrying Out the Invention

[0008] Next, embodiments according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic front view showing an opening / closing device to which the installation structure of the opening / closing device according to the present invention is applied, FIG. 2 is a schematic longitudinal sectional view along the line (II)-(II) of FIG. 1, and FIG. 3 is an example of the installation structure of the opening / closing device according to the present invention, and is a schematic cross-sectional view along the line (III)-(III) of FIG. 1. In this specification, the "width direction of the opening / closing body" means a direction substantially orthogonal to the opening / closing direction of the opening / closing body and not the thickness direction of the opening / closing body. Further, the "inner side in the width direction of the opening / closing body" means the direction side facing the inside of the opening / closing body along the width direction of the opening / closing body. For example, based on the guide rail 40A on the right side in FIG. 1, the inner side in the width direction of the opening / closing body is the left direction side. Further, the "outer side in the width direction of the opening / closing body" means the direction side facing the outside of the opening / closing body along the width direction of the opening / closing body. For example, based on the guide rail 40A on the right side in FIG. 1, the outer side in the width direction of the opening / closing body is the right direction side.

[0009] (First Embodiment) The opening / closing device 1 includes an opening / closing body 10 that closes in a manner of partitioning a space, a storage unit 20 that feeds out the opening / closing body 10 in the closing direction or stores it in the opening direction, and a guide rail 40A that guides the opening / closing body 10 in the closing direction and the opening direction.

[0010] The wooden structure X is a large building mainly made of wood. This wooden structure X includes a wooden base x1 and a fire-resistant member x2 that covers the wooden base x1 (see FIGS. 2 and 3).

[0011] The wooden base x1 is a wooden building material that constitutes the basic framework of the wooden structure X. For example, it is a square-columnar wood that constitutes columns and beams, or a flat structural plywood that constitutes a wall surface. In the illustrated example, the wooden base x1 stands from the floor surface below the opening / closing device 1 to the ceiling portion 2 above the opening / closing device 1.

[0012] The fire-resistant member x2 is a plate-shaped building material having fire resistance and heat insulation properties (for example, a gypsum board, a calcium silicate board, etc.). It is provided so as to cover the front side surface (the finding surface x1a) of the wooden base x1 and the inner side surface in the width direction of the opening / closing body (the prospective surface x1b). In this embodiment, after installing the guide rail 40A on the wooden base x1, the fire-resistant member x2 is provided. Also, in the illustrated example, a single fire-resistant member x2 is provided on each surface of the wooden base x1 to form a single-layer structure, but it is also possible to provide them in a plurality of layers to form a multi-layer structure.

[0013] The opening / closing body 10 is formed by connecting a plurality of slats formed by bending a horizontally long substantially rectangular metal plate so as to rotate between the upper and lower parts, and may be referred to as a slat shutter curtain. As another example of this opening / closing body 10, it can be a mode made of a flexible sheet, a mode made of a plurality of panels, a mode in which a plurality of pipes are arranged at intervals in the vertical direction, a mode formed by appropriately combining slats, flexible sheets, panels, pipes, etc.

[0014] The storage part 20 includes a winding shaft 21 for winding and unwinding the opening / closing body 10, shaft support brackets 22, 22 for supporting the winding shaft 21 at both ends thereof, a winding shaft case 23 that covers the periphery of the winding shaft 21 and the opening / closing body 10 wound around the winding shaft 21, an opening / closing machine 24 that is a drive source for driving the winding shaft 21 to rotate, a support base frame 25 for supporting the shaft support brackets 22, 22, etc. (see FIGS. 1 and 2).

[0015] The winding shaft 21 is configured in a long cylindrical shape extending in the width direction of the opening / closing body and is rotatably supported. The winding shaft 21 may be configured in a manner such that a winding body is rotatably supported via a bearing on the outer periphery of a non-rotatable fixed shaft, or a shaft portion integrated with the winding body is rotatably supported via a bearing with respect to the shaft support bracket 22.

[0016] The winding shaft case 23 is formed in a long shape with a longitudinal cross section such as a substantially U shape or an arc shape continuous in the opening / closing width direction. The winding shaft case 23 is fixed to the support base frame 25 so as to cover the periphery of the winding shaft 21 and the opening / closing body 10 wound around the winding shaft 21 from the front side (left side according to FIG. 2).

[0017] The opening / closing machine 24 is composed of an electric motor, gears, etc. The opening / closing machine 24 is supported by one (right side according to FIG. 1) of the shaft support brackets 22, and transmits its rotational force to the winding shaft 21 by means of a chain, sprocket, etc. not shown.

[0018] The support base frame 25 is integrally configured to have a long connecting portion 25a that connects the left and right shaft support brackets 22, 22 at their lower ends by connecting a plurality of long rigid members (for example, various steel materials such as angle steel and channel steel), and a support portion 25b that supports a substantially central portion in the lateral width direction of the connecting portion 25a and is fixed to the rear wooden base x1. In FIG. 1, an example in which one support portion 25b is arranged in the lateral width direction of the connecting portion 25a is shown, but the number of support portions 25b to be arranged may be plural.

[0019] Note that the left and right shaft support brackets 22, 22 and the support portion 25b are fixedly secured to the wooden base x1 by fastening tools (for example, screws, bolts, anchor members, etc.) (not shown).

[0020] The guide rail 40A is a long member that is continuous in the vertical direction at both ends in the width direction of the opening / closing body 10. This guide rail 40A guides the widthwise end portion of the opening / closing body 10 in the opening / closing direction and is fixed to the finding surface x1a of the wooden base x1.

[0021] (Structure of the guide rail) Hereinafter, the specific structure of the guide rail 40A will be described. FIG. 4 is an explanatory view showing an example of the installation structure of the opening / closing device according to the present invention, decomposed into components. Specifically, the installation structure for installing the guide rail 40A on the wooden base x1 is shown.

[0022] As shown in FIGS. 3 and 4, the guide rail 40A integrally includes a rail body 41 that protrudes forward from the finding surface x1a side of the wooden base x1, and a base member 42 for fastening this rail body 41 to the wooden base x1. These rail body 41 and base member 42 are each formed of a hard metal material (for example, steel, stainless steel, aluminum alloy, etc.).

[0023] The base member 42 has a substantially concave cross-section that is continuous in the longitudinal direction in the vertical direction, including a plate-shaped portion 42a that contacts the finding surface x1a side of the wooden base x1, and protruding pieces 42b, 42b that protrude orthogonally (forward) from both left and right end portions of this plate-shaped portion 42a. This base member 42 is fastened and fixed to the finding surface x1a of the wooden base x1 by a fastening tool M1.

[0024] The rail body 41 integrally includes a guide portion 41a having a guide recess 41a1 that surrounds the widthwise end portion of the opening / closing body 10 in a concave cross-sectional shape and guides it in the vertical direction, and a support portion 41b that protrudes forward from the finding surface x1a side of the wooden base x1 and supports the guide portion 41a. A stepped portion 41a2 that bends in a crank shape is formed at the rear end portion of the guide portion 41a, and an amorphous refractory coating material 80 described later is installed (filled) in this stepped portion 41a2.

[0025] The rail body 41 is integrally joined by a fastener M2 (for example, a screw, a bolt, a rivet, etc.) that is inserted through the overlapping portion in a state where the rear end portion of the guide portion 41a (a part of the stepped portion 41a2) and the rear end portion of the support portion 41b are overlapped with both protruding pieces 42b, 42b of the base member 42 fixed in advance. And a closed space a1 (air layer) defined by the guide portion 41a, the support portion 41b, and the base member 42 is formed in the guide rail 40A (see FIG. 3).

[0026] Also, the lower end portion of the guide rail 40A is fixed to a lower stationary part (for example, a floor surface, a lower frame, a sill, etc.) via a bracket (not shown). Also, the upper end portion is fixed to an upper stationary part (for example, the ceiling portion 2, the upper-side steel material, the beam material, etc.) via a bracket (not shown).

[0027] As another example of the guide rail 40A, it is possible to adopt a mode in which it is formed in a hollow column shape from a plurality of members other than the illustrated example, a mode in which it is formed in an integral hollow tubular shape, and the like.

[0028] (Mounting Structure of Guide Rail) Next, a specific mounting structure related to the installation of the guide rail 40A will be described. The guide rail 40A is attached to the wooden base x1 using mounting structures such as a fastener M1, a flexible refractory heat insulator 50, a receiving seat 60, and an amorphous refractory coating material 80.

[0029] [Fastener] The fastening member M1 is a shaft portion having a screw portion m11 on the tip side and a screwing member (for example, a screw, a bolt, etc.) having a head portion m12 on the rear end side, and a plurality of them are provided at intervals in the vertical direction. The screw portion m11 (shaft portion) of each fastening member M1 passes through the receiving seat 60, the base member 42, and the flexible refractory heat insulating material 50 and is screwed into the wooden base x1.

[0030] [Flexible refractory heat insulating material] As shown in FIG. 4, on the finding surface x1a of the wooden base x1, a flexible refractory heat insulating material 50 made of, for example, silica cloth, glass cloth, etc., which has fire resistance and heat insulation properties, is disposed. This flexible refractory heat insulating material 50 is interposed between the finding surface x1a of the wooden base x1 and the plate-like portion 42a of the base member 42, and between each projecting piece portion 42b of the base member 42 and the rear end portion of the rail body 41 (guide portion 41a, support portion 41b), and is arranged so as to exceed the end portion of each projecting piece portion 42b, and is disposed to prevent the fastening member M1 from becoming high temperature due to heat during a fire.

[0031] That is, the base member 42 has a facing surface (first surface) of the base member 42 facing the finding surface (finding surface x1a of the wooden base x1) of the wooden structure X and an outer surface (second surface) of the projecting piece portion 42b which is a surface other than this facing surface (first surface). However, since the flexible refractory heat insulating material 50 is interposed between the facing surface (first surface) of the base member 42 and the finding surface x1a of the wooden base x1 and is arranged so as to cover a required portion of the outer surface (second surface) of the projecting piece portion 42b, even when the guide rail 40A receives flames or heat from the inner side in the opening / closing body width direction (left side in FIG. 3) or the outer side in the opening / closing body width direction (right side in FIG. 3) during a fire, the installation of the flexible refractory heat insulating material 50 can prevent the heat from being transmitted to the fastening member M1, and further, can prevent the heat of the base member 42 from being directly transmitted to the wooden base x1.

[0032] Therefore, it is possible to prevent the wooden base x1 from being thermally deteriorated (damaged) around the screw portion m11 of the fastening member M1, and to prevent the fastening member M1 from falling off, or the guide rail 40A from becoming detached due to the falling off of the fastening member M1.

[0033] The flexible refractory heat insulation material 50 is interposed between the finding surface x1a of the wooden base x1 and the plate-like portion 42a of the base member 42, and between each projecting piece portion 42b of the base member 42 and the rear end portion of the rail body 41 (guide portion 41a, support portion 41b), and can be formed into an arbitrary shape (size, thickness) exceeding the end portion of each projecting piece portion 42b. For example, it can be formed into a long shape (strip shape) with a width larger than the outer peripheral length of the base member 42 and substantially the same as or larger than the vertical length of the guide rail 40A. Note that the outer peripheral length of the base member 42 is the length obtained by summing the length (dimension) of the plate-like portion 42a in the finding direction and the length (dimension) of each projecting piece portion 42b in the expected direction.

[0034] Also, in the illustrated example, a single flexible refractory heat insulation material 50 is provided to form a single-layer structure, but it is also possible to provide a plurality of layers to form a multi-layer structure. By adopting such a multi-layer structure, the heat insulation property of the flexible refractory heat insulation material 50 can be further improved (the heat blocking performance can be further improved).

[0035] Further, the flexible refractory heat insulation material 50 may be configured to include an adhesive material on at least one surface and / or the other surface. In this case, during construction, the flexible refractory heat insulation material 50 can be temporarily attached to the finding surface x1a of the wooden base x1 via the adhesive material, or temporarily attached to each projecting piece portion 42b of the base member 42.

[0036] [Receiving seat] The receiving seat 60 has a rising portion 61 extending substantially perpendicular to the plate-like portion 42a of the base member 42, and an inclined portion 62 connected to one edge of the rising portion 61, and is formed, for example, by bending a flat plate-shaped metal plate.

[0037] At approximately the center of the inclined portion 62, a screw hole 62a for inserting the screw portion m11 of the fastener M1 is formed, and the peripheral portion surrounding this screw hole 62a is configured to receive the head m12 of the fastener M1 via a washer 70. Since this screw hole 62a is formed to penetrate substantially perpendicular to the surface of the inclined portion 62, the screw portion m11 of the fastener M1 will be inserted along this screw hole 62a. As a result, the fastener M1 will be driven obliquely into the finding surface x1a of the wooden substrate x1. Therefore, the guide rail 40A can be firmly fixed to the wooden substrate x1 (strongly fixed against external forces).

[0038] Also, the inclination angle of the inclined portion 62 (the inclination angle with respect to the finding surface x1a) can be set to any angle that can firmly fix the guide rail 40A to the wooden substrate x1 (strongly fixed against external forces), and is not particularly limited. For example, by setting it to 10 to 30 degrees, the workability during the installation of the guide rail 40A (for example, when screwing in the fastener M1, etc.) can be improved. Note that this receiving seat 60 can also be formed of a non-metallic material such as silicon or plastic having fire resistance and heat insulation properties.

[0039] [Castable refractory coating material] The castable refractory coating material 80 is composed of a paste-like (putty-like) castable sealing material having fire resistance and heat insulation properties, such as a silicon-based, modified silicon-based, polysulfide-based, etc. As shown in FIG. 3, this castable refractory coating material 80 is arranged to cover (fill) the attachment location between the wooden structure X and the guide rail 40A.

[0040] Specifically, for example, the space sandwiched between the refractory member x2 disposed on the finding surface x1a of the wooden substrate x1 and the rail body 41 (the space where the castable refractory coating material 80 on the right side of FIG. 3 is arranged), or the space surrounded by the end face of the refractory portion x2 disposed on the prospective surface x1b of the wooden substrate x1 and the stepped portion 41a2 of the rail body 41 (the space where the castable refractory coating material 80 on the left side of FIG. 3 is arranged) is filled with the castable refractory coating material 80.

[0041] After construction, this amorphous refractory coating material 80 functions as a refractory coating material by drying and hardening. When it is arranged at the attachment location between the wooden structure X and the guide rail 40A, it can prevent the finding surface x1a, etc. on the wooden base x1 from being damaged by flames and heat during a fire. That is, after the installation of the guide rail 40A, when the fire-resistant member x2 is arranged, an exposed area that cannot be covered by the fire-resistant member x2 will occur on the finding surface x1a of the wooden base x1. However, since this exposed area is covered by the amorphous refractory coating material 80, heat damage to the wooden base x1 can be prevented. Note that this amorphous refractory coating material 80 may be omitted from the configuration.

[0042] (Construction method of guide rail) Next, an example of the construction method (construction procedure) of the guide rail 40A will be described with reference to FIGS. 5 to 9.

[0043] <Step 1: Arrangement of flexible refractory heat insulation material> First, as shown in FIG. 5(a), the flexible refractory heat insulation material 50 is arranged to cover a predetermined area (the area where the guide rail 40A is arranged) on the finding surface x1a of the wooden base x1. In the illustrated example, since the base member 42 of the guide rail 40A is arranged at a portion closer to the prospective surface x1b side (the left portion in FIG. 5(a)) on the finding surface x1a of the wooden base x1, one end portion 50a of the flexible refractory heat insulation material 50 in the left-right direction is arranged to protrude from the finding surface x1a of the wooden base x1. This protruding portion becomes a portion that covers the outer surface of one side protruding piece portion 42b (the left protruding piece portion 42b in FIG. 5(b)) of the base member 42.

[0044] Note that a heat-resistant / refractory adhesive or adhesive material may be provided on a part of the back surface of the flexible refractory heat insulation material 50 so that it can be temporarily attached to the finding surface x1a of the wooden base x1.

[0045] <Step 2: Arrangement of base member> Next, as shown in FIG. 5(b), the base member 42 of the guide rail 40A is disposed on the finding surface x1a of the wooden base x1 covered with the flexible refractory heat insulating material 50. In this case, the back surface of the plate-shaped portion 42a of the base member 42 is disposed so as to contact the finding surface x1a of the wooden base x1 covered with the flexible refractory heat insulating material 50.

[0046] <Step 3: Arrangement of the receiving seat> Next, as shown in FIG. 6(a), the receiving seat 60 is disposed at a predetermined position of the base member 42. In this case, the outer surface of the rising portion 61 of the receiving seat 60 is brought into contact with the inner surface of the protruding piece portion 42b on the other side of the base member 42, so that the receiving seat 60 can be easily positioned. In this state, the inclined portion 62 of the receiving seat 60 is inclined with respect to the plate-shaped portion 42a of the base member 42.

[0047] Note that an adhesive or an adhesive material may be provided on the outer surface of the rising portion 61 of the receiving seat 60 so that it can be temporarily attached to the base member 42. Further, the receiving seat 60 may be configured in a joined state in advance at a predetermined position of the base member 42 before construction.

[0048] <Step 4: Fixing of the base member> Next, as shown in FIG. 6(b), a washer 70 is attached to the fastener M1, and the fastener M1 is screwed in so as to penetrate the receiving seat 60, the base member 42, and the flexible refractory heat insulating material 50. In this case, since the screw hole 62a (see FIG. 6(a)) formed in the inclined portion 62 of the receiving seat 60 is formed to penetrate substantially perpendicular to the surface of the inclined portion 62, the screw portion m11 of the fastener M1 is inserted along this screw hole 62a. As a result, since the fastener M1 is driven obliquely and screwed into the finding surface x1a of the wooden base x1, the base member 42 is firmly fixed to the wooden base x1.

[0049] Note that insertion holes through which the screw portion m11 is inserted can be formed in the plate-shaped portion 42a of the base member 42 and the flexible refractory heat insulating material 50 by using a general-purpose tool such as an electric drill during construction.

[0050] <Step 5: Attachment of Rail Body> Next, as shown in Fig. 7, the rail body 41 is attached to the base member 42 fixed and adhered to the finding surface x1a of the wooden base x1. In this case, one end portion 50a and the other end portion 50b in the left - right direction of the flexible refractory heat - insulating material 50 are bent so as to contact the outer surfaces of the respective projecting pieces 42b of the base member 42. In this state, the rear end portion of the guide portion 41a and the rear end portion of the support portion 41b of the rail body 41 are overlapped with the respective projecting pieces 42b, 42b of the base member 42 so as to sandwich the flexible refractory heat - insulating material 50, and are integrally joined by a fastener M2 (for example, a screw, a bolt, a rivet, etc.). Thereby, a closed space a1 (air layer) defined by the guide portion 41a, the support portion 41b, and the base member 42 is formed in the guide rail 40A (see Fig. 8).

[0051] Note that in the base member 42, the rail body 41, etc., insertion holes through which the shaft portion (screw portion) of the fastener M2 is inserted by a general - purpose tool such as an electric drill during construction can be drilled.

[0052] <Step 6: Arrangement of Refractory Members> Next, as shown in Fig. 8, refractory members x2, x2 are arranged on the finding surface x1a and the prospective surface x1b of the wooden base x1, respectively. Each refractory member x2, x2 is attached and fixed to the wooden base x1 by fixing means (not shown) such as screws and nails.

[0053] <Step 7: Arrangement of Unshaped Refractory Coating Material> Next, as shown in Fig. 9, an unshaped refractory coating material 80 having fire - resistance and heat - insulation is arranged (coated) at the attachment location of the wooden structure X and the guide rail 40A. Specifically, the space sandwiched between the refractory member x2 disposed on the finding surface x1a of the wooden base x1 and the rail body 41, and the space surrounded by the end face of the refractory member x2 disposed on the prospective surface x1b of the wooden base x1 and the step portion 41a2 of the rail body 41 are coated (filled) with the unshaped refractory coating material 80 (80a). In this case, the paste - like (putty - like) unshaped refractory coating material 80 (80a) can be coated using, for example, an injector 81 or a shaping tool such as a trowel or a spatula.

[0054] The coated amorphous refractory coating material 80 (80a) dries and hardens and functions as a refractory coating material (see Fig. 3). By arranging this amorphous refractory coating material 80 at the attachment location between the wooden housing X and the guide rail 40A, it is possible to prevent the finding surface x1a etc. on the wooden base x1 from being damaged by flames and heat during a fire.

[0055] According to the above configuration, since the flexible refractory heat insulating material 50 is interposed between the finding surface x1a of the wooden base x1 and the plate-like portion 42a of the base member 42, during a fire, the heat of the base member 42 can be blocked from directly transferring to the wooden base x1.

[0056] In addition, since the flexible refractory heat insulating material 50 is interposed between each projecting piece portion 42b of the base member 42 and the rear end portion of the rail body 41 (guide portion 41a, support portion 41b) and is arranged so as to exceed the end portion of each projecting piece portion 42b, when the guide rail 40A receives flames and heat from the inner side in the width direction of the opening / closing body (left side in Fig. 3) or the outer side in the width direction of the opening / closing body (right side in Fig. 3) during a fire, the heat can be blocked from transferring to the fastener M1.

[0057] Therefore, it is possible to prevent the wooden base x1 from being thermally deteriorated (damaged) around the screw portion m11 of the fastener M1, and to prevent the fastener M1 from falling off or the guide rail 40A from becoming detached due to the falling off of the fastener M1.

[0058] In addition, by arranging the amorphous refractory coating material 80 at the attachment location between the wooden housing X and the guide rail 40A, it is possible to prevent the finding surface x1a etc. on the wooden base x1 from being damaged by flames and heat during a fire.

[0059] In addition, in the present embodiment, since a part of the head portion m12 and the shaft portion of the fastener M1 is located in the closed space a1 (air layer) of the guide rail 40A, when receiving heat from the outside of the guide rail 40A due to a fire, this space a1 (air layer) can also block the heat from transferring to the fastener M1.

[0060] (Second Embodiment) Next, another embodiment of the installation structure of the opening / closing device according to the present invention will be described. FIG. 10 is a schematic cross-sectional view along line (IV)-(IV) of FIG. 1, which is another example of the installation structure of the opening / closing device according to the present invention. FIG. 11 is an explanatory view showing another example of the installation structure disassembled into components. Specifically, FIGS. 10 and 11 show the installation structure in which the pivot bracket 22 of the opening / closing device 1 is installed on the wooden base x1.

[0061] The pivot bracket 22 includes a flat support body 22a that rotatably supports the winding shaft 21 (see FIG. 2), and a mounting piece 22b that is connected substantially orthogonally inward in the left-right direction from the rear edge portion of the support body 22a, and is formed in a substantially L-shape in plan view. This pivot bracket 22 is integrally formed, for example, by bending a flat metal plate material or welding each part.

[0062] The wooden housing X includes a wooden base x1, a wooden intermediate post x1' disposed adjacent to the wooden base x1, and fire-resistant members x2, x3 disposed on the front side of the wooden base x1 and the intermediate post x1'. The fire-resistant member x3 is composed of a plate-shaped building material (for example, a gypsum board or a calcium silicate board) having fire resistance and heat insulation, similar to the fire-resistant member x2.

[0063] In the illustrated example, the fire-resistant members x2, x3 are provided singly to form a single-layer structure, but it is also possible to provide them in a plurality of layers to form a multi-layer structure. Also, in the present embodiment, after installing the pivot bracket 22 on the wooden base x1, the fire-resistant members x2, x3 are configured to be provided.

[0064] The shaft support bracket 22 is fixedly attached to the finding surface x1a of the wooden base x1 covered by the flexible fireproof heat insulation material 100 by a fastener M1 inserted through the mounting piece 22b of the shaft support bracket 22. This flexible fireproof heat insulation material 100 is interposed between the finding surface x1a of the wooden base x1 and the mounting piece 22b of the shaft support bracket 22, and is arranged to cover the finding surface x1a of the wooden base x1 that is not covered by the fireproof member x2 and the outer surface of the mounting piece 22b. Thereby, during a fire, it is possible to prevent the wooden base x1 from suffering thermal deterioration (damage) around the screw portion m11 of the fastener M1, and to prevent the fastener M1 from falling off or the guide rail 40A from coming off due to the falling off of the fastener M1.

[0065] That is, the shaft support bracket 22 has a facing surface (the first surface) of the mounting piece 22b facing the finding surface (the finding surface x1a of the wooden base x1) of the wooden structure X, and the outer surface (the second surface) of the mounting piece 22b and the outer surface (the second surface) of the support body 22a, which are surfaces other than this facing surface (the first surface). However, since the flexible fireproof heat insulation material 100 is interposed between the facing surface (the first surface) of the mounting piece 22b and the finding surface x1a of the wooden base x1, and is arranged to cover the required portions of the outer surface (the second surface) of the mounting piece 22b and the outer surface (the second surface) of the support body 22a, which are surfaces other than this facing surface (the first surface), during a fire, the heat from the mounting piece 22b can be blocked from directly transferring to the wooden base x1. Furthermore, since the flame and heat during a fire do not directly act on the outer surface of the mounting piece 22b or the like, the heat transferred to the fastener M1 and the wooden base x1 side can be reduced.

[0066] Also, after the shaft support bracket 22 is installed, when the fireproof member x2 is arranged, an exposed area that cannot be covered by the fireproof member x2 will occur on the finding surface x1a of the wooden base x1. However, since this exposed area is covered by the flexible fireproof heat insulation material 100, it is possible to prevent the wooden base x1 from suffering thermal damage.

[0067] The flexible refractory heat insulation material 100 is interposed between the finding surface x1a of the wooden base x1 and the mounting piece 22b of the pivot bracket 22, and can be formed into any shape (size, thickness) that can cover the finding surface x1a of the wooden base x1 not covered by the refractory member x2 and the outer surface of the mounting piece 22b. Note that the configuration (function) of the flexible refractory heat insulation material 100 is the same as that of the flexible refractory heat insulation material 50 described above.

[0068] When attaching the pivot bracket 22 to the wooden base x1, first, similar to step 1 of the first embodiment described above, the flexible refractory heat insulation material 100 is arranged to cover a predetermined area (the area where the pivot bracket 22 is arranged) of the finding surface x1a of the wooden base x1. Note that a heat-resistant / refractory adhesive or adhesive material may be provided on a part of the back surface of the flexible refractory heat insulation material 100 so that it can be temporarily attached to the finding surface x1a of the wooden base x1.

[0069] Next, similar to step 2 of the first embodiment, the pivot bracket 22 is arranged (the mounting piece 22b is abutted) on the finding surface x1a of the wooden base x1 covered by the flexible refractory heat insulation material 100, and one end 100a side in the left-right direction of the flexible refractory heat insulation material 50 is folded back to cover the outer surface (front surface) of the mounting piece 22b. In the illustrated example, one end 100a side in the left-right direction of the flexible refractory heat insulation material 100 is provided to cover the outer surface (front surface) of the mounting piece 22b and a part of the inner surface of the base of the support body 22a.

[0070] Next, similar to step 4 of the first embodiment, a washer 70 is attached to the fastener M1, and the fastener M1 is screwed in so as to be inserted through the flexible refractory heat insulation material 100 and the mounting piece 22b of the pivot bracket 22. Thereby, the screw portion m11 of the fastener M1 is inserted through the flexible refractory heat insulation material 100 and the mounting piece 22b and screwed into the wooden base x1, so that the pivot bracket 22 is fixedly attached to the wooden base x1.

[0071] Note that an insertion hole through which the screw portion m11 can be inserted can be formed in the flexible refractory heat insulation material 100 by a general-purpose tool such as an electric drill during construction.

[0072] Next, in the same manner as in Step 6 of the first embodiment described above, refractory members x2 and x3 are arranged on the front side of the wooden base x1 and the intermediate column x1'. Each of the refractory members x2 and x3 is attached and fixed to the wooden base x1 by fixing means (not shown) such as screws and bolts.

[0073] In this case, the refractory member x3 arranged on the front side of the intermediate column x1' is arranged such that its end face abuts against the folded top of the flexible refractory heat insulation material 100.

[0074] Further, the refractory member x2 arranged on the front side of the wooden base x1 is arranged to abut against the other end 100b of the flexible refractory heat insulation material 100. In the illustrated example, the other end 100b of the flexible refractory heat insulation material 100 is arranged in a state of being bent so as to be located at the end face of the refractory member x2.

[0075] As a result, the finding surface x1a of the wooden base x1 is covered by the respective refractory members x2 and x3 together with the flexible refractory heat insulation material 100 so as not to be exposed.

[0076] Note that the left and right direction other ends 100b of the flexible refractory heat insulation material 100 may be arranged linearly so as to be sandwiched between the wooden base x1 and the refractory member x2 without being arranged in a bent state.

[0077] According to the above configuration, since the flexible refractory heat insulation material 100 is interposed between the finding surface x1a of the wooden base x1 and the attachment piece 22b of the pivot bracket 22, it is possible to prevent the heat of the attachment piece 22b from directly being transmitted to the wooden base x1.

[0078] Further, since this flexible refractory heat insulation material 100 is arranged so as to cover the outer surface of the attachment piece 22b of the pivot bracket 22, flames and heat during a fire do not directly act on the outer surface of the attachment piece 22b, so that the heat transmitted to the fastener M1 and the wooden base X1 side can be reduced.

[0079] Furthermore, after the installation of the shaft support bracket 22, when the fire-resistant member x2 is disposed, an exposed area that cannot be covered by the fire-resistant member x2 is formed on the finding surface x1a of the wooden base x1. However, since this exposed area is covered by the flexible fireproof heat insulating material 100, heat damage to the wooden base x1 can be prevented.

[0080] Therefore, it is possible to prevent heat deterioration (damage) of the wooden base x1 around the screw portion m11 of the fastener M1, and to prevent the fastener M1 from falling off or the shaft support bracket 22 from becoming detached due to the falling off of the fastener M1.

[0081] (Modification example) Next, a modification example of the above embodiment will be described. Note that the modification example described below is a modification of a part of the configuration of the above embodiment. Therefore, mainly the modified part will be described, and the same reference numerals will be given to the same configurations and duplicate descriptions will be omitted.

[0082] [Modification example 1] FIG. 12(a) shows a schematic cross-sectional view showing a modification example (modification example 1) of the above-described embodiment 2. This modification example 1 is configured by partially changing the arrangement structure of the flexible fireproof heat insulating material 100 and the fire-resistant member x2 of the above-described embodiment 2.

[0083] Specifically, the flexible fireproof heat insulating material 200 of the modification example 1 is interposed between the finding surface x1a of the wooden base x1 and the attachment piece 22b of the shaft support bracket 22, and is provided so as to cover the outer surface of the attachment piece 22b, the inner surface of the base portion of the support body 22a, and the outer surface of the base portion of the support body 22a.

[0084] In addition, the fire-resistant member x2 disposed on the finding surface x1a of the wooden base x1 is arranged such that its end face abuts against the folded other end portion 200b of the flexible fireproof heat insulating material 200. In the illustrated example, one end portion 200a in the left-right direction of the flexible fireproof heat insulating material 200 is provided so as to cover the outer surface (front surface) of the mounting piece 22b and a part of the inner surface of the base portion of the support body 22a. Further, a space s1 that allows deformation of the top portion is formed between the folded top portion of the flexible fireproof heat insulating material 200 and the end portion of the mounting piece 22b, and it is configured to improve the adhesion between the flexible fireproof heat insulating material 200 and the end surface of the fireproof member x3.

[0085] Also in this Modification 1, by arranging the flexible fireproof heat insulating material 200, it is possible to prevent the wooden base x1 from thermally deteriorating (being damaged) around the screw portion m11 of the fastener M1 during a fire, and to prevent the fastener M1 from falling off or the support bracket 22 from becoming detached due to the falling off of the fastener M1.

[0086] [Modification 2] FIG. 12(b) shows a schematic cross-sectional view showing another modification (Modification 2) of the above-described Embodiment 2. In this Modification 2, the support bracket 22 is configured to be attached from above a fireproof member x4 that covers the finding surface x1a of the wooden base x1. The fireproof member x4 is composed of a plate-shaped building material (for example, a gypsum board or a calcium silicate board) having fire resistance and heat insulation properties, similar to the fireproof members x2 and x3.

[0087] The flexible fireproof heat insulating material 300 is interposed between the outer surface (finding surface) of the fireproof member x4 and the mounting piece 22b of the support bracket 22, and is provided so as to cover the outer surface of the mounting piece 22b, the inner surface of the base portion of the support body 22a, and the outer surface of the base portion of the support body 22a. Specifically, one end portion 300a in the left-right direction of the flexible fireproof heat insulating material 300 is provided so as to cover the outer surface (front surface) of the mounting piece 22b and a part of the inner surface of the base portion of the support body 22a, and the other end portion 300b in the left-right direction is provided so as to cover a part of the outer surface of the base portion of the support body 22a.

[0088] This Modification Example 2 can be applied, for example, when attaching the pivot bracket 22 to an existing wooden structure including a wooden base x1 and a fire-resistant member x4 covering the wooden base x1.

[0089] Also in this Modification Example 2, by disposing the flexible fireproof heat insulating material 300, it is possible to prevent the wooden base x1 from being thermally deteriorated (damaged) around the screw portion m11 of the fastener M1 during a fire, and to prevent the fastener M1 from falling off or the pivot bracket 22 from coming off due to the falling off of the fastener M1.

[0090] [Modification Example 3] Fig. 13(a) shows a schematic cross-sectional view showing a modification (Modification Example 3) of the above-described Embodiment 2. This Modification Example 3 is configured by partially changing the arrangement structure of the flexible fireproof heat insulating material 200 of the above-described Modification Example 1.

[0091] Specifically, the flexible fireproof heat insulating material 400 of Modification Example 3 is interposed between the finding surface x1a of the wooden base x1 and the attachment piece 22b of the pivot bracket 22, surrounds the outer surface of the attachment piece 22b, the head m12 of the fastener M1, and the inner surface of the base portion of the support body 22a, and is provided so as to cover the outer surface of the base portion of the support body 22a.

[0092] Also, one end portion 400a in the left-right direction and the other end portion 400b in the left-right direction of the flexible fireproof heat insulating material 400 are arranged to face each other with the support body 22a interposed therebetween, and are fixed to the support body 22a by a fixing member M3 including, for example, bolts m3a and nuts m3b. Since the outer surface of the attachment piece 22b, the head m12 of the fastener M1, and the inner surface of the base portion of the support body 22a are arranged in the space s2 (air layer) surrounded by the flexible fireproof heat insulating material 400, it is possible to block the heat during a fire from being transmitted to the fastener M1 and the portion around the fastener M1 in the pivot bracket 22.

[0093] Also in this Modification 3, by disposing the flexible fireproof heat insulating material 400, it is possible to prevent the wooden base x1 from being thermally deteriorated (damaged) around the screw portion m11 of the fastener M1 during a fire, and to prevent the fastener M1 from falling off or the support bracket 22 from becoming detached due to the fall of the fastener M1.

[0094] [Modification 4] Fig. 13(b) shows a schematic cross-sectional view showing a modification (Modification 4) of the above-described Embodiment 2. This Modification 4 is configured by partially changing the arrangement structure of the flexible fireproof heat insulating material 300 of the above-described Modification 2.

[0095] Specifically, the flexible fireproof heat insulating material 500 of Modification 4 is interposed between the outer surface of the fireproof member x4 and the attachment piece 22b of the support bracket 22, and surrounds the outer surface of the attachment piece 22b, the head m12 of the fastener M1, and the inner surface of the base portion of the support body 22a, and is provided so as to cover the outer surface of the base portion of the support body 22a.

[0096] Also, one end portion 500a in the left-right direction and the other end portion 500b in the left-right direction of the flexible fireproof heat insulating material 500 are arranged to face each other with the support body 22a interposed therebetween, and are fixed to the support body 22a by a fixing member M3 including, for example, bolts m3a and nuts m3b. Since the outer surface of the attachment piece 22b, the head m12 of the fastener M1, and the inner surface of the base portion of the support body 22a are arranged in a space s3 (air layer) surrounded by the flexible fireproof heat insulating material 500, it is possible to block the heat during a fire from being transmitted to the fastener M1 and the portion around the fastener M1 in the support bracket 22.

[0097] Also in this Modification 4, by disposing the flexible fireproof heat insulating material 500, it is possible to prevent the wooden base x1 from being thermally deteriorated (damaged) around the screw portion m11 of the fastener M1 during a fire, and to prevent the fastener M1 from falling off or the support bracket 22 from becoming detached due to the fall of the fastener M1.

[0098] [Other Modifications] Further, in the above-described embodiments and modifications, the surface of the head m12 of the fastener M1 (for example, only the upper surface of the head, or the upper surface and the circumferential surface of the head) may be coated with a refractory coating material having fire resistance and heat insulation properties. As the refractory coating material, for example, a known foaming refractory paint or a sheet-shaped refractory coating material containing ammonium polyphosphate, a carbonizing agent, and a foaming agent can be used. In this case, as the temperature rises during a fire, ammonium polyphosphate decomposes and binds to the carbonizing agent, and a carbonized heat-insulating layer is formed on the surface of the head m12 by the gas generated from the foaming agent. Therefore, it is possible to reduce the transmission of heat to the fastener M1 during a fire.

[0099] Further, in the above-described first embodiment, when attaching the base member 42 of the guide rail 40A to the wooden base x1, it may be configured to be attached without providing the receiving seat 60.

[0100] Note that the present invention is not limited to the above-described specific configurations, and can be appropriately changed without changing the gist of the present invention.

[0101] <Summary> As described above, the following inventions are disclosed in the above embodiments. (1) An installation structure of an opening / closing device for installing an opening / closing device that opens and closes an opening in a wooden housing, the installation structure including a fastener having a shaft portion insertable into the wooden housing and a head provided at the rear end of the shaft portion, and a flexible refractory heat-insulating material having fire resistance, heat insulation properties, and flexibility. The fastener fixes the opening / closing device to the wooden housing by passing the shaft portion through a mounted portion that is a part of the opening / closing device and inserting the shaft portion into the wooden housing. The mounted portion has a first surface facing the mounting surface of the wooden housing and a second surface other than the first surface. The flexible refractory heat-insulating material is interposed between the first surface of the mounted portion and the mounting surface of the wooden housing and is arranged to cover a required portion of the second surface of the mounted portion. (2) The opening / closing device includes an opening / closing body that moves up and down along the opening in the vertical direction, and a guide rail that guides the end side in the lateral width direction of the opening / closing body in the opening / closing direction. The attached part is the guide rail, and the guide rail is fixed to the wooden housing by the fastener. The installation structure of the opening / closing device according to (1) above is characterized by this. (3) The guide rail includes a rail body that guides the end side in the lateral width direction of the opening / closing body in the opening / closing direction, and a separate base member connected to the rail body. The base member has a plate-shaped portion having a facing surface facing the mounting surface of the wooden housing, and protruding portions that protrude substantially orthogonally from both left and right end portions of the plate-shaped portion and form a connection portion connected to the rail body. The facing surface of the plate-shaped portion forms the first surface, and the outer surface of the protruding portion forms the second surface. The installation structure of the opening / closing device according to (2) above is characterized by this. (4) The opening / closing device includes an opening / closing body that moves up and down along the opening in the vertical direction, a guide rail that guides the end side in the lateral width direction of the opening / closing body in the opening / closing direction, a winding shaft around which the opening / closing body is wound, and a pair of left and right shaft support brackets that rotatably support the winding shaft. The attached part is the pair of left and right shaft support brackets, and the pair of left and right shaft support brackets are fixed to the wooden housing by the fastener. The installation structure of the opening / closing device according to (1) above is characterized by this. (5) The shaft support bracket has a support body that rotatably supports the winding shaft, and a mounting piece that is connected substantially orthogonally from the rear edge of the support body and has a facing surface facing the mounting surface of the wooden housing. The facing surface of the mounting piece forms the first surface, and the outer surface of the shaft support bracket other than the facing surface of the mounting piece forms the second surface. The installation structure of the opening / closing device according to (4) above is characterized by this. (6) The flexible fireproof heat insulating material is further arranged so as to cover the head of the fastener. The installation structure of the opening / closing device according to any one of claims (1) to (5) is characterized by this. (7) The installation structure of the opening / closing device according to any one of (1) to (6) above, wherein the surface of the head of the fixing member is coated with a refractory coating material having fire resistance and heat insulation properties. (8) A construction method of the installation structure of the opening / closing device according to any one of (1) to (7) above, including a step of interposing the flexible refractory heat insulating material between the first surface of the attached part and the attachment surface of the wooden housing, and arranging the flexible refractory heat insulating material to cover a required part of the second surface of the attached part.

Explanation of reference numerals

[0102] 1: Opening / closing device 10: Opening / closing body 21: Winding shaft 22: Shaft support bracket (attached part) 22a: Support body 22b: Attachment piece 40A: Guide rail (attached part) 41: Rail body 42: Base member 50: Flexible refractory heat insulating material 100: Flexible refractory heat insulating material 200: Flexible refractory heat insulating material 300: Flexible refractory heat insulating material 400: Flexible refractory heat insulating material 500: Flexible refractory heat insulating material X: Wooden housing x1: Wooden base x2, x3, x4: Fire-resistant members M1: Fixing member m11: Screw part (shaft part) m12: Head

Claims

1. An opening and closing device installation structure in which an opening and closing device that opens and closes an opening is installed on a wooden structure, A fastener having a shaft portion that can be inserted into the wooden structure and a head portion provided at a rear end of the shaft portion; A flexible fireproof and insulating material having fire resistance, heat insulation and flexibility; Equipped with the fastener is configured to fix the opening / closing device to the wooden structure by having the shaft portion pass through a mounting portion that is a part of the opening / closing device and being inserted into the wooden structure, The mounting portion has a first surface facing a mounting surface of the wooden structure and a second surface other than the first surface, The flexible fireproof insulation material is disposed between the first surface of the mounting portion and the mounting surface of the wooden structure, and is disposed so as to cover a required portion of the second surface of the mounting portion. A switching device installation structure comprising:

2. The opening and closing device includes an opening and closing body that opens and closes in a vertical direction along the opening, and a guide rail that guides an end side of the opening and closing body in a lateral width direction in the opening and closing direction, The mounting portion is the guide rail, and the guide rail is fixed to the wooden structure by the fastener.

2. The opening and closing device installation structure according to claim 1 .

3. the guide rail includes a rail body that guides an end side of the opening / closing body in a lateral width direction in an opening / closing direction, and a separate base member that is connected to the rail body; The base member has a plate-shaped portion having an opposing surface facing the mounting surface of the wooden structure, and protruding pieces protruding approximately perpendicularly from both left and right end portions of the plate-shaped portion and forming connection portions to be connected to the rail main body, The opposing surface of the plate-like portion forms the first surface, and an outer surface of the protruding piece forms the second surface.

3. The opening and closing device installation structure according to claim 2.

4. The opening and closing device includes an opening and closing body that opens and closes in the vertical direction along the opening, a guide rail that guides an end side of the opening and closing body in the lateral width direction in the opening and closing direction, a winding shaft that winds up the opening and closing body, and a pair of left and right shaft support brackets that rotatably support the winding shaft, The mounting portions are the pair of left and right pivot brackets, and the pair of left and right pivot brackets are fixed to the wooden structure by the fasteners.

2. The opening and closing device installation structure according to claim 1 .

5. The shaft support bracket has a support body that rotatably supports the winding shaft, and a mounting piece that is connected to a rear end edge of the support body in a substantially perpendicular manner and has an opposing surface that faces the mounting surface of the wooden structure, The opposing surface of the mounting piece forms the first surface, and an outer surface of the support bracket other than the opposing surface of the mounting piece forms the second surface.

5. The opening and closing device installation structure according to claim 4.

6. The flexible fire-resistant insulating material is further disposed so as to cover the head of the fastener.

6. An installation structure for a switching device according to claim 1.

7. The surface of the head of the fastener is covered with a fire-resistant coating material having fire resistance and heat insulation properties.

6. An installation structure for a switching device according to claim 1.

8. A construction method for the installation structure of the switchgear according to claim 1 or 2, comprising the steps of: The method includes a step of placing the flexible fireproof insulation material between the first surface of the mounting portion and the mounting surface of the wooden structure, and arranging the flexible fireproof insulation material so as to cover a required portion of the second surface of the mounting portion. A construction method characterized by the above.

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