Switchgear installation structure and construction method therefor

Abstract

To prevent damage to a wooden base body, and consequently to prevent fasteners from loosening or falling off.SOLUTION: A switchgear installation structure includes a fastener M1 with a shaft part m11 that can be inserted into a wooden base body and a head part m12 provided at the rear end of the shaft part m11, a fire-resistant member x2 having fire resistance and heat insulation properties that covers a partial region of an outer surface of the wooden base body x1 to which the fastener M1 is fastened, and a flexible fire-resistant insulating material 50 having fire resistance, heat insulation properties, and flexibility; the fastener M1 fixes the switchgear to the wooden base body x1 by having the shaft part m11 penetrate an attachment portion that is a part of the switchgear and being inserted into the wooden base body x1, and the flexible fire-resistant insulating material 50 is arranged to cover at least other regions of the outer surface of the wooden base body x1 than a region not covered by the fire-resistant member x2.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an opening and closing device installation structure for installing an opening and closing device that opens and closes an opening on a wooden base, and a construction method thereof. [Background technology]

[0002] In a typical opening and closing device, as described in Patent Document 1, for example, a guide rail for guiding the opening and closing body in the closing direction is fastened to the steel material that constitutes the building structure by fastening devices such as screws and bolts. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-211257 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in recent years, there are cases where the framework of a large building is constructed from wood, and a large shutter device such as a heavy-duty shutter is installed on the wooden base. In such cases, the relatively heavy guide rail is fixed to the wooden base with fasteners such as screws and bolts, and a fire-resistant surface material is placed on the guide rail mounting surface of the wooden base. However, it is difficult to place a fire-resistant surface material without any gaps on the guide rail mounting surface of the wooden base to which the guide rail is fastened. In the unlikely event of a fire, flames and heat from the fire could be transmitted through such gaps, damaging the wooden base and causing the fasteners to loosen or fall off. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention has the following configuration. An installation structure for an opening and closing device that opens and closes an opening, comprising: a fastener having an axis that can be inserted into the wooden base and a head provided at the rear end of the axis; a fire-resistant member having fire resistance and heat insulation properties that covers a portion of an outer surface of the wooden base to which the fastener is fastened; and a flexible fire-resistant insulating material that has fire resistance, heat insulation properties and flexibility, wherein the fastener fixes the opening and closing device to the wooden base by having the axis penetrate an attachment portion that is a portion of the opening and closing device and being inserted into the wooden base, and the flexible fire-resistant insulating material is arranged to cover at least other areas of the outer surface of the wooden base other than the portion of the outer surface that is not covered by the fire-resistant member. Effect of the Invention

[0006] Since the present invention is configured as described above, even if flames or heat from a fire act on the outer surface of the wooden base to which the fastening devices are attached, damage to the wooden base can be prevented, and as a result, loosening or falling off of the fastening devices can be prevented. [Brief description of the drawings]

[0007] [Figure 1] 1 is a schematic front view showing a switching device to which a switching device installation structure according to the present invention is applied; [Diagram 2] FIG. 2 is a schematic vertical cross-sectional view taken along line (II)-(II) in FIG. [Diagram 3] FIG. 2 is a schematic cross-sectional view taken along line (III)-(III) in FIG. 1, showing an example of an installation structure for a switching device according to the present invention. [Figure 4] FIG. 2 is an explanatory diagram showing an example of the installation structure disassembled into its constituent parts. [Diagram 5] 11 is an explanatory diagram illustrating a construction procedure of the installation structure. FIG. [Figure 6] 11 is an explanatory diagram illustrating a construction procedure of the installation structure. FIG. [Figure 7] 11 is an explanatory diagram illustrating a construction procedure of the installation structure. FIG. [Figure 8] 11 is an explanatory diagram illustrating a construction procedure of the installation structure. FIG. [Figure 9] 11 is an explanatory diagram illustrating a construction procedure of the installation structure. FIG. [Figure 10] 4 is a schematic cross-sectional view of another example of the installation structure of a switching device according to the present invention, taken along line (IV)-(IV) in FIG. [Figure 11] FIG. 11 is an explanatory diagram showing another example of the same installation structure disassembled into its constituent parts. [Figure 12] 11 is a schematic cross-sectional view showing a modified example of the installation structure shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Next, an embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a schematic front view of a switchgear to which the installation structure of the switchgear according to the present invention is applied, Fig. 2 is a schematic vertical cross-sectional view taken along line (II)-(II) in Fig. 1, and Fig. 3 is a schematic cross-sectional view taken along line (III)-(III) in Fig. 1, showing an example of the installation structure of the switchgear according to the present invention. In this specification, the term "width direction of the opening / closing body" refers to a direction that is approximately perpendicular to the opening / closing direction of the opening / closing body and is not the thickness direction of the opening / closing body. In addition, the "inner side in the width direction of the opening / closing body" refers to the direction toward the inside of the opening / closing body along the width direction of the opening / closing body. For example, when the guide rail 40A on the right side in FIG. 1 is used as a reference, the inner side in the width direction of the opening / closing body is the left side.

[0009] (First embodiment) The opening / closing device 1 includes an opening / closing body 10 that performs a closing operation to partition a space, a storage section 20 that extends the opening / closing body 10 in the closing direction and 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-scale building made mainly of wood. The 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, such as rectangular prism-shaped wooden pieces that constitute pillars and beams, or flat structural plywood that constitutes the walls. The wooden base x1 in the illustrated example is erected from the floor surface below the opening and closing device 1 to the ceiling part 2 above the opening and closing device 1.

[0012] The fire-resistant member x2 is a plate-shaped building material having fire-resistance and heat-insulating properties (e.g., gypsum board, calcium silicate board, etc.), and is arranged to cover the front side (visible surface x1a) of the wooden base x1 and the inner side (visible surface x1b) in the width direction of the opening / closing body. In this embodiment, the guide rails 40A are installed on the wooden base x1, and then the fire-resistant members x2 are provided. 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 a plurality of layers on each surface to form a multi-layer structure.

[0013] The opening / closing body 10 is made up of a plurality of slats connected together so as to be able to rotate between the top and bottom, and is sometimes called a slat shutter curtain. The slats are made by bending a horizontally elongated, generally rectangular metal plate. Other examples of this opening / closing body 10 include a structure made of a flexible sheet, a structure made of multiple panels, a structure in which multiple pipes are arranged at intervals above and below, and a structure made of an appropriate combination of slats, flexible sheets, panels, pipes, etc.

[0014] The storage section 20 is equipped with a winding shaft 21 that winds up and unwinds the opening-closing body 10, pivot brackets 22, 22 that support the winding shaft 21 at both ends, a winding shaft case 23 that covers the winding shaft 21 and the opening-closing body 10 wound around the winding shaft 21, an opening / closing machine 24 which is a driving source that drives and rotates the winding shaft 21, and a support base frame 25 that supports the pivot brackets 22, 22, etc. (see Figures 1 and 2).

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

[0016] The winding shaft case 23 is formed in an elongated shape with a generally U-shaped or arc-shaped cross section continuing in the opening / closing width direction. The winding shaft case 23 is attached to the support base frame 25 so as to cover the winding shaft 21 and the opening / closing body 10 wound around the winding shaft 21 from the front side (the left side in FIG. 2).

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

[0018] The support base frame 25 is integrally formed by connecting a plurality of long hard members (for example, various steel materials such as angle iron and channel iron) to have a long connecting portion 25a that connects the left and right pivot brackets 22, 22 at their lower ends, and a support portion 25b that supports a substantially central portion in the width direction of the connecting portion 25a and is fastened to the rear wooden base x1. Note that, although Fig. 1 shows an example in which one support portion 25b is arranged in the width direction of the connecting portion 25a, the number of support portions 25b to be arranged may be multiple.

[0019] The left and right pivot brackets 22, 22 and the support portion 25b are immovably fixed to the wooden base x1 by fasteners (not shown) (for example, screws, bolts, anchor members, etc.).

[0020] The guide rails 40A are long members that continue vertically on both ends in the width direction of the opening-closing body 10. The guide rails 40A are fixed to a facing surface x1a of the wooden base x1 so as to guide the width direction ends of the opening-closing body 10 in the opening and closing direction.

[0021] (Guide rail structure) The specific structure of the guide rail 40A will be described below. Fig. 4 is an explanatory diagram in which an example of an installation structure for an opening and closing device according to the present invention is disassembled into its component parts, and specifically, an installation structure in which the guide rail 40A is installed on a wooden base x1 is shown.

[0022] As shown in Figures 3 and 4, the guide rail 40A is integrally provided with a rail main body 41 that protrudes forward from the viewing surface x1a of the wooden base x1, and a base member 42 for fastening the rail main body 41 to the wooden base x1. The rail body 41 and the base member 42 are each formed from a hard metal material (for example, steel, stainless steel, aluminum alloy, etc.).

[0023] The base member 42 has a generally concave cross section that is continuous in a long shape in the vertical direction and has a plate-shaped portion 42a that contacts the visible surface x1a of the wooden base x1 and protruding pieces 42b, 42b that protrude perpendicularly (forward) from both left and right end portions of the plate-shaped portion 42a. The base member 42 is fastened to the visible surface x1a of the wooden base x1 by a fastener M1.

[0024] The rail body 41 integrally comprises a guide portion 41a having a guide recess 41a1 that surrounds the width direction end of the opening / closing body 10 in a concave cross section and guides it in the up-down direction, and a support portion 41b that protrudes forward from the visible surface x1a side of the wooden base x1 and supports the guide portion 41a. The rear end of the guide portion 41a is formed with a step portion 41a2 that is bent in a crank shape, and the amorphous fire-resistant covering material 80 described later is installed (filled) in this step portion 41a2.

[0025] The rail main body 41 is joined together by a fastener M2 (e.g., a screw, a bolt, a rivet, or the like) that is inserted through the overlapping portion in a state where the rear end of the guide portion 41a (a part of the step portion 41a2) and the rear end of the support portion 41b are overlapped with both protruding pieces 42b, 42b of the previously attached base member 42. Then, in the guide rail 40A, a closed space a1 (air layer) is formed by the guide portion 41a, the support portion 41b, and the base member 42 (see FIG. 3).

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

[0027] As another example of the guide rail 40A, it is possible to use a configuration in which the guide rail 40A is configured in a hollow column shape by using a plurality of members other than those shown in the drawings, or a configuration in which the guide rail 40A is configured in an integrated hollow tube shape.

[0028] (Guide rail mounting structure) Next, a specific mounting structure for installing the guide rail 40A will be described. The guide rail 40A is attached to the wooden base x1 using mounting structures such as the fastener M1, the flexible fireproof insulation material 50, the receiving seat 60, and the amorphous fireproof covering material 80.

[0029] [Fastening device] The fastener M1 is a screw member (for example, a screw or a bolt) having a shaft portion with a threaded portion m11 at the tip end and a head portion m12 at the rear end, and a plurality of fasteners M1 are provided at intervals in the vertical direction. The screw portion m11 (shaft portion) of each fastener M1 penetrates the receiving seat 60, the base member 42, and the flexible fireproof insulating material 50, and is screwed into the wooden base x1.

[0030] [Flexible fireproof insulation material] 4, a flexible fireproof insulation material 50 having fire resistance and heat insulation properties, for example, made of silica cloth or glass cloth, is disposed on the visible surface x1a of the wooden base x1. This flexible fireproof insulation material 50 is interposed between the wooden base x1 and the base member 42 of the guide rail 40A, and is disposed so as to cover the visible surface x1a of the wooden base x1 that is not covered by the fireproof member x2, thereby preventing damage to the wooden base x1 due to flames and heat in the event of a fire.

[0031] In other words, when the fire-resistant member x2 is arranged after the guide rail 40A is installed, an exposed area is created on the visible surface x1a of the wooden base x1 that cannot be covered by the fire-resistant member x2, but this exposed area is covered by the flexible fire-resistant insulation material 50, thereby preventing thermal damage to the wooden base x1.

[0032] The flexible fireproof heat insulating material 50 is interposed between the wooden base x1 and the base member 42 of the guide rail 40A, and can be formed into any shape (size, thickness) that covers the visible surface x1a of the wooden base x1 and the area not covered by the fireproof member x2. For example, it can be formed into a long (strip-like) shape with a width larger than the left-right width of the visible surface x1a of the wooden base x1 and a length approximately equal to or larger than the vertical length of the guide rail 40A.

[0033] In the illustrated example, a single flexible fireproof insulating material 50 is provided to form a single-layer structure, but it is also possible to provide multiple layers to form a multi-layer structure. By forming such a multi-layer structure, it is possible to further improve the insulating properties of the flexible fireproof insulating material 50 (further improve the heat blocking performance).

[0034] Also, the flexible fireproof insulating material 50 may be configured to have an adhesive material on at least one surface thereof. In this case, during construction, the flexible fireproof insulating material 50 can be temporarily attached by being attached to the visible surface x1a of the wooden base x1 via the adhesive material.

[0035] [Receiving seat] The receiving seat 60 has a rising portion 61 extending approximately perpendicular to the plate-shaped portion 42a of the base member 42, and an inclined portion 62 connected to one end edge of the rising portion 61, and is formed, for example, by bending a flat rectangular metal plate.

[0036] A screw hole 62a for inserting the screw portion m11 of the fastener M1 is formed in approximately the center of the inclined portion 62, 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 approximately perpendicularly to the surface of the inclined portion 62, the screw portion m11 of the fastener M1 is inserted along this screw hole 62a, and as a result, the fastener M1 is driven obliquely into the visible surface x1a of the wooden base x1. Therefore, the guide rail 40A can be firmly fixed to the wooden base x1 (strongly fixed against external forces).

[0037] The inclination angle of the inclined portion 62 (the inclination angle with respect to the sight surface x1a) can be set to any angle that can firmly fix the guide rail 40A to the wooden base x1 (strongly fix it against external forces), and is not particularly limited. For example, by setting it to 10 to 30 degrees, workability during installation of the guide rail 40A (for example, when screwing in the fastener M1) can be improved. The receiving seat 60 may also be made of a non-metallic material such as silicone or plastic having fire resistance and heat insulation properties.

[0038] [Unshaped fireproof covering material] The amorphous fireproof covering material 80 is made of an amorphous sealing material having fire resistance and heat insulation properties, such as a paste-like (putty-like) material of silicon, modified silicon, polysulfide, etc. This amorphous fireproof covering material 80 is configured to cover one end 50a and the other end 50b in the left and right directions of the flexible fireproof insulating material 50, as shown in FIG.

[0039] (Guide rail installation method) Next, an example of a method (procedure) for installing the guide rail 40A will be described with reference to FIGS.

[0040] <Step 1: Placement of flexible fireproof insulation material> First, as shown in Fig. 5(a), the flexible fireproof heat insulating material 50 is arranged so as to cover a predetermined area (area where the guide rail 40A is arranged) of the visible surface x1a of the wooden base x1. Specifically, one left-right end 50a of the flexible fireproof heat insulating material 50 is arranged so as to reach the end surface of the fireproof member x2 (dotted line in Fig. 5(a)) to be arranged on the visible surface x1b of the wooden base x1, and the other left-right end 50b is arranged so as to reach a position partially overlapping with the inner surface of the fireproof member x2 (dotted line in Fig. 5(a)) to be arranged on the visible surface x1a of the wooden base x1.

[0041] The flexible fireproof insulating material 50 may be provided with an adhesive material such as double-sided tape on the back surface thereof so that it can be temporarily attached to the visible surface x1a of the wooden base x1.

[0042] <Step 2: Arrangement of base components> 5(b), the base member 42 of the guide rail 40A is placed on the visible surface x1a of the wooden base x1 covered with the flexible fireproof insulating material 50. In this case, the back surface of the plate-shaped portion 42a of the base member 42 is placed in contact with the visible surface x1a of the wooden base x1 covered with the flexible fireproof insulating material 50.

[0043] <Step 3: Placement of the receiving seat> 6(a), the receiving seat 60 is placed at a predetermined position on the base member 42. In this case, the receiving seat 60 can be easily positioned by abutting the outer surface of the rising portion 61 of the receiving seat 60 against the inner surface of the protruding piece portion 42b on one side of the base member 42. 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.

[0044] In addition, an adhesive material such as double-sided tape 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. Also, the receiving seat 60 may be configured in advance to be joined to a predetermined position on the base member 42 prior to construction.

[0045] <Step 4: Fixing the base material> 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 pass through the receiving seat 60, the base member 42, and the flexible fireproof thermal insulation 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 perpendicularly 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, the fastener M1 is obliquely driven into and screwed into the mounting surface x1a of the wooden base x1, so that the base member 42 is firmly fastened and fixed to the wooden base x1.

[0046] During construction, insertion holes for inserting the screw portions m11 can be drilled in the plate-shaped portion 42a of the base member 42 and the flexible fireproof insulating material 50 with a general-purpose tool such as an electric drill.

[0047] <Step 5: Attaching the rail body> Next, as shown in Fig. 7, the rail body 41 is attached to the base member 42 fastened to the visible surface x1a of the wooden base x1. In this case, the rear end of the guide portion 41a and the rear end of the support portion 41b of the rail body 41 are overlapped with the protruding pieces 42b, 42b of the base member 42, respectively, and are integrally joined by fasteners M2 (e.g., screws, bolts, rivets, etc.). As a result, a closed space a1 (air layer) is formed in the guide rail 40A, which is defined by the guide portion 41a, the support portion 41b, and the base member 42 (see Fig. 3).

[0048] In addition, in the base member 42, the rail main body 41, etc., an insertion hole for inserting the shaft portion (threaded portion) of the fastening portion M2 can be drilled with a general-purpose tool such as an electric drill during construction.

[0049] <Step 6: Arrangement of fire-resistant components> Next, as shown in Fig. 8, the fire-resistant members x2, x2 are arranged on the visible surface x1a and the invisible surface x1b of the wooden base x1, respectively. Each of the fire-resistant members x2, x2 is attached and fixed to the wooden base x1 by fixing means (not shown) such as screws or bolts.

[0050] When these fire-resistant members x2, x2 are arranged, one left-right end 50a of the flexible fire-resistant insulation 50 is arranged so as to extend in a straight line on the end face of the fire-resistant member x2 arranged on the visible surface x1b of the wooden base x1, and the other left-right end 50b of the flexible fire-resistant insulation 50 is arranged in a bent state so as to be positioned on the end face of the fire-resistant member x2 arranged on the visible surface x1a of the wooden base x1.

[0051] In addition, the other left-right end 50b of the flexible fire-resistant insulation material 50 does not need to be bent, but may be arranged in a straight line so as to be sandwiched between the visible surface x1a of the wooden base x1 and the inner surface of the fire-resistant member x2.

[0052] <Step 7: Placement of unshaped fireproof covering material> Next, as shown in Fig. 9, a non-formable fireproof covering material 80 having fire resistance and heat insulation is arranged (covered) on the surface of the flexible fireproof insulating material 50. Specifically, the flexible fireproof insulating material 50 has an intervening portion (sandwiched portion) interposed between the visible surface x1a of the wooden base x1 and the base member 42, and an exposed portion (one end portion 50a in the left-right direction and the other end portion 50b in the left-right direction) other than the intervening portion, and the exposed portion is covered with the non-formable fireproof covering material 80. In this case, the non-formable fireproof covering material 80 (80a) in a paste form (putty form) can be covered using, for example, a syringe 81 or a shape-retaining tool such as a trowel or spatula.

[0053] The coated amorphous fire-resistant covering material 80 (80a) dries and hardens to function as a fire-resistant covering material. The exposed surface x1a of the wooden base x1 can be more effectively protected from damage caused by flames and heat during a fire by the amorphous fire-resistant covering material 80 together with the flexible fire-resistant insulation material 50. In addition, this unshaped fire-resistant covering material 80 may be omitted.

[0054] According to the above configuration, areas of the visible surface x1a of the wooden base x1, such as gaps between the guide rail 40A and the fire-resistant member x2 (areas not covered by the fire-resistant member x2), are covered with the flexible fire-resistant insulating material 50, thereby preventing thermal damage to the wooden base x1. As a result, it is possible to prevent the fastener M1 from falling off or the guide rail 40A from becoming detached due to the fastener M1 falling off.

[0055] In addition, since the amorphous fire-resistant covering material 80 is arranged (covered) on one left-right end 50a and the other left-right end 50b of the flexible fire-resistant insulation material 50, damage to the wooden base x1 due to flames and heat in the event of a fire can be further effectively prevented.

[0056] In this embodiment, the head m12 and part of the shaft of the fastener M1 are located within the closed space a1 (air layer) of the guide rail 40A, so that when heat is received from the outside due to a fire, this space a1 (air layer) can prevent the heat from being transmitted to the fastener M1. Therefore, it is possible to prevent the wooden base x1 from being thermally deteriorated around the screw part m11 of the fastener M1, and as a result, it is possible to prevent the fastener M1 from falling off or the guide rail 40A from coming off due to the fastener M1 falling off.

[0057] Second embodiment Next, another embodiment of the installation structure for a switching device according to the present invention will be described. Fig. 10 is a schematic cross-sectional view taken along line (IV)-(IV) in Fig. 1, showing another example of the installation structure of the opening and closing device according to the present invention. Fig. 11 is an explanatory view showing the same installation structure disassembled into its components. Specifically, Fig. 10 and Fig. 11 show an installation structure in which the pivot bracket 22 of the opening and closing device 1 is installed on a wooden base x1.

[0058] The pivot bracket 22 is formed in a substantially L-shape in plan view and includes a flat support body 22a that rotatably supports the winding shaft 21 (see FIG. 2) and an attachment piece 22b that is connected substantially perpendicularly from the rear edge of the support body 22a toward the inside in the left-right direction. The pivot bracket 22 is formed integrally, for example, by bending a metal flat plate material or by welding each portion.

[0059] The wooden structure X includes a wooden base x1, a wooden partition x1' arranged adjacent to the wooden base x1, and fire-resistant members x2 and x3 arranged in front of the wooden base x1 and the partition x1'. The fire-resistant member x3 is made of a plate-shaped building material (such as a gypsum board or a calcium silicate board) having fire resistance and heat insulation properties, similar to the fire-resistant member x2.

[0060] In the illustrated example, a single fire-resistant member x2, x3 is provided to form a single layer structure, but it is also possible to provide a plurality of layers of each to form a multi-layer structure. In this embodiment, the support bracket 22 is installed on the wooden base x1, and then the fire-resistant members x2 and x3 are provided.

[0061] The pivot bracket 22 is fastened to the visible surface x1a of the wooden base x1 covered with the flexible fire-resistant insulating material 50' by a fastener M1 inserted into the mounting piece 22b of the pivot bracket 22. The flexible fire-resistant insulating material 50' is interposed between the wooden base x1 and the mounting piece 22b of the pivot bracket 22, and is disposed so as to cover the visible surface x1a of the wooden base x1 that is not covered with the fire-resistant member x2, thereby preventing damage to the wooden base x1 due to flames and heat in the event of a fire.

[0062] In other words, when the fire-resistant member x2 is arranged after the support bracket 22 is installed, an exposed area is created on the visible surface x1a of the wooden base x1 that cannot be covered by the fire-resistant member x2, but this exposed area is covered by the flexible fire-resistant insulation material 50', thereby preventing thermal damage to the wooden base x1.

[0063] The flexible fireproof insulating material 50' is interposed between the wooden base x1 and the mounting piece 22b of the pivot bracket 22, and can be formed into any shape (size, thickness) that covers the visible surface x1a of the wooden base x1 and the area not covered by the fireproof member x2. The configuration (function) of the flexible fireproof insulating material 50' is the same as that of the flexible fireproof insulating material 50 described above.

[0064] When attaching the pivot bracket 22 to the wooden base x1, first, similarly to step 1 of the first embodiment described above, the flexible fireproof insulation material 50' is arranged so as to cover a predetermined area (area where the pivot bracket 22 is arranged) of the visible surface x1a of the wooden base x1. Specifically, one left-right end 50a' of the flexible fireproof insulation material 50' is arranged so as to reach the end surface of the fireproof member x3 to be arranged on the visible surface (front surface) of the stud x3, and the other left-right end 50b is arranged so as to reach the end surface of the fireproof member x2 to be arranged on the visible surface x1a of the wooden base x1.

[0065] The flexible fireproof heat insulating material 50' may be provided on its back surface with an adhesive material such as double-sided tape so that it can be temporarily attached to the visible surface x1a of the wooden base x1.

[0066] Next, similar to step 2 in the first embodiment, the pivot bracket 22 is placed (the mounting piece 22b is brought into contact with) the visible surface x1a of the wooden base x1 covered with the flexible fireproof insulating material 50', and similar to step 4, a washer 70 is attached to the fastener M1, and the fastener M1 is screwed in so as to pass through the mounting piece 22b of the pivot bracket 22 and the flexible fireproof insulating material 50'. As a result, the screw portion m11 of the fastener M1 is inserted through the mounting piece 22b and the flexible fireproof insulating material 50' and screwed into the wooden base x1, thereby fastening and fixing the pivot bracket 22 to the wooden base x1.

[0067] Next, similarly to step 6 in the first embodiment described above, the fire-resistant members x2 and x3 are arranged in front of the wooden base x1 and the studs x1'. The fire-resistant members x2 and x3 are attached and fixed to the wooden base x1 by fixing means (not shown) such as screws or bolts.

[0068] When the fire-resistant members x2 and x3 are arranged, the left and right ends 50a' and 50b' of the flexible fire-resistant insulating material 50' are arranged in a bent state so as to be positioned on the end faces of the fire-resistant members x2 and x3, respectively.

[0069] In addition, the left and right ends 50a', 50b' of the flexible fire-resistant insulation material 50 do not need to be bent, but may be arranged in a straight line so as to be sandwiched between the partition wall x1' and the fire-resistant member X3, and between the wooden base x1 and the fire-resistant member x2, respectively.

[0070] According to the above configuration, areas of the visible surface x1a of the wooden base x1, such as gaps that occur between the support bracket 22 and the fire-resistant member x2 (areas that are not covered by the fire-resistant member x2), are covered by the flexible fire-resistant insulation material 50', thereby preventing thermal damage to the wooden base x1. As a result, it is possible to prevent the fastening device M1 from falling off and the support bracket 22 from becoming detached due to the fastening device M1 falling off.

[0071] Furthermore, in the installation structure of the support bracket 22 shown in Fig. 10, a shapeless fire-resistant covering material 80' having fire resistance and heat insulation properties may be arranged (covered) on the surface of the flexible fire-resistant insulation material 50' as shown in Fig. 12. In this case, similar to step 7 of the above-mentioned embodiment, the shapeless fire-resistant covering material may be arranged (covered) on the exposed portions of the left and right ends 50a', 50b' of the flexible fire-resistant insulation material 50'.

[0072] Specifically, the flexible fire-resistant insulation material 50' has an interposed portion (sandwiched portion) interposed between the visible surface x1a of the wooden base x1 and the mounting piece 22b, and also has exposed portions other than this interposed portion (one left-right end portion 50a' and the other left-right end portion 50b'), and the amorphous fire-resistant covering material 80' is positioned (covered) to cover these exposed portions.

[0073] The coated (filled) amorphous fire-resistant covering material 80' dries and hardens to function as a fire-resistant covering material. The exposed surface x1a of the wooden base x1 can be more effectively protected from damage caused by flames and heat during a fire by the amorphous fire-resistant covering material 80' together with the flexible fire-resistant insulation material 50'.

[0074] (Modification) In the above-mentioned embodiment, the surface of the head m12 of the fastener M1 (for example, only the top surface of the head, or the top surface of the head and the peripheral surface) may be configured to be covered with a fire-resistant coating material having fire resistance and heat insulation. As the fire-resistant coating material, for example, a known expandable fire-resistant paint or a sheet-shaped fire-resistant coating material containing ammonium polyphosphate, a carbonizing agent, and a foaming agent can be used. In this case, due to the temperature rise during a fire, the ammonium polyphosphate decomposes and bonds with 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, the transfer of heat to the fastener M1 in the event of a fire can be reduced.

[0075] In the first embodiment described above, when the base member 42 of the guide rail 40A is attached to the wooden base x1, the receiving seat 60 may be omitted.

[0076] The present invention is not limited to the above-mentioned specific configuration, and can be modified as appropriate without departing from the gist of the present invention.

[0077] <Summary> As described above, the above embodiments disclose the following inventions. (1) An installation structure for an opening and closing device that opens and closes an opening, comprising: a fastener having an axis that can be inserted into the wooden base and a head provided at the rear end of the axis; a fire-resistant member having fire resistance and heat insulation properties that covers a portion of an outer surface of the wooden base to which the fastener is fastened; and a flexible fire-resistant insulating material that has fire resistance, heat insulation properties and flexibility, wherein the fastener fixes the opening and closing device to the wooden base by having the axis penetrate an attachment portion that is a portion of the opening and closing device and being inserted into the wooden base, and the flexible fire-resistant insulating material is arranged to cover at least other areas of the outer surface of the wooden base other than the portion of the outer surface that is not covered by the fire-resistant member. (2) The opening and closing device comprises an opening and closing body that opens and closes in the vertical direction along the opening, and a guide rail that guides the end side of the opening and closing body in the opening and closing direction, the mounting portion being the guide rail, and the guide rail being fixed to the wooden base by the fastener. (3) The installation structure for an opening and closing device described in (2) above, characterized in that the guide rail comprises a rail main body that guides the end side of the opening and closing body in the width direction in the opening and closing direction, and a separate base member connected to the rail main body, and the base member is fixed to the wooden base by the fastening device. (4) The installation structure for the opening and closing device described in (3) above, characterized in that the flexible fire-resistant insulation material has an interposed portion interposed between the outer surface of the wooden base and the base member, and the portion of the flexible fire-resistant insulation material other than the interposed portion is covered with an amorphous fire-resistant covering material having fire resistance and insulation properties. (5) The opening and closing device comprises an opening and closing body that opens and closes in the vertical direction along the opening, a guide rail that guides the end side of the opening and closing body in the opening and closing direction in the lateral direction, a winding shaft that winds up the opening and closing body, and a pair of left and right support brackets that rotatably support the winding shaft, the mounting portion being the pair of left and right support brackets, and the pair of left and right support brackets being fixed to the wooden base by the fasteners, characterized in that the installation structure for the opening and closing device described above in (1). (6) The installation structure for the opening and closing device described in (5) above, characterized in that the support bracket has a support body that rotatably supports the winding shaft and an attachment piece that is connected approximately perpendicularly to the rear end edge of the support body, and the attachment piece is fixed to the wooden base by the fastener. (7) The installation structure for the opening and closing device described in (6) above, characterized in that the flexible fire-resistant insulation material has an interposed portion interposed between the outer surface of the wooden base and the mounting piece, and the portion of the flexible fire-resistant insulation material other than the interposed portion is covered with an amorphous fire-resistant covering material having fire resistance and insulation properties. (8) The opening and closing device installation structure according to any one of (1) to (7) above, characterized in that a surface of the head of the fastener is covered with a fire-resistant covering material having fire resistance and heat insulation properties. (9) A construction method for the installation structure of the opening and closing device described in (1) above, comprising the steps of: arranging the flexible fire-resistant insulation material so as to cover at least other areas of the outer surface of the wooden base other than the partial area not covered by the fire-resistant member; arranging the mounting portion of the opening and closing device on the outer surface of the wooden base covered with the flexible fire-resistant insulation material; fixing the opening and closing device to the wooden base by penetrating the fastener through the mounting portion of the opening and closing device and inserting it into the wooden base; and arranging a fire-resistant member having fire resistance and insulation properties so as to cover the partial area of ​​the outer surface of the wooden base. (10) The construction method described in (9) above, further comprising a step of covering the surface of the flexible fireproof insulation material with an amorphous fireproof covering material having fire resistance and insulation properties after the step of placing the fireproof member. [Explanation of symbols]

[0078] 1: Switchgear 10: Opening and closing body 21: Winding shaft 22: Axis support bracket (mounting part) 22a: Support body 22b: Mounting piece 40A: Guide rail (mounting part) 41: Rail body 42: Base material 50,50': Flexible fireproof insulation 80,80': Unshaped fireproof covering material x1: Wooden base x2,x3: Fireproof material M1: Fastener m11: Threaded part (shaft) m12: head

Claims

1. An opening and closing device installation structure in which an opening and closing device for opening and closing an opening is installed on a wooden base, a fastener having a shaft portion that can be inserted into the wooden base and a head portion provided at a rear end of the shaft portion; a fire-resistant member having fire resistance and heat insulation properties that covers a part of an outer surface area of ​​the wooden base to which the fastener is attached; 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 base 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 base, The flexible fire-resistant insulating material is disposed so as to cover at least the other area of ​​the outer surface of the wooden base other than the partial area not covered by the fire-resistant member. 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 base 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 is fixed to the wooden base by the fastener.

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

4. The flexible fireproof insulation material has an interposed portion interposed between the outer surface of the wooden substrate and the base member, and the portion of the flexible fireproof insulation material other than the interposed portion is covered with an unshaped fireproof covering material having fire resistance and heat insulation properties.

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

5. 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 portion is the pair of left and right pivot brackets, and the pair of left and right pivot brackets are fixed to the wooden base by the fasteners.

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

6. The shaft support bracket has a support body that rotatably supports the winding shaft, and an attachment piece that is connected to a rear end edge of the support body in a substantially perpendicular manner, The attachment piece is fixed to the wooden base by the fastener.

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

7. The flexible fireproof insulation material has an interposed portion interposed between the outer surface of the wooden base and the mounting piece, and the portion of the flexible fireproof insulation material other than the interposed portion is covered with an unshaped fireproof covering material having fire resistance and heat insulation properties.

7. The opening and closing device installation structure according to claim 6.

8. The surface of the head of the fastener is covered with a fire-resistant coating material having fire resistance and heat insulation properties. The installation structure of a switchgear according to any one of claims 1 to 7.

9. A construction method for the installation structure of the switchgear according to claim 1, A step of disposing the flexible fire-resistant insulation material so as to cover at least an area of ​​the outer surface of the wooden substrate other than the partial area not covered by the fire-resistant member; placing the mounting portion of the opening and closing device on the outer surface of the wooden base covered with the flexible fire-resistant insulating material; a step of fixing the opening and closing device to the wooden base by passing the fastener through the mounting portion of the opening and closing device and inserting the fastener into the wooden base; and arranging a fire-resistant member having fire resistance and heat insulation properties so as to cover the partial area of ​​the outer surface of the wooden base. A construction method characterized by the above.

10. After the step of arranging the fire-resistant member, the method further includes a step of covering the surface of the flexible fire-resistant insulation material with an unshaped fire-resistant covering material having fire resistance and insulation properties. The construction method according to claim 9 .

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