Opening / closing device installation structure

Abstract

To reduce heat transfer to a fastener.SOLUTION: An installation structure of an opening / closing device 1 configured to fix the opening / closing device 1 for opening / closing an opening portion to a wooden skeleton X provided on a side of the opening portion includes a fastener M1 having a shaft portion m11 that can be inserted into the wooden skeleton X and a head portion m12 provided at a rear end of the shaft portion m11, and a fire-resistant covering material 50, in which the fastener M1 fixes the opening / closing device 1 to the wooden skeleton X by being inserted the shaft portion m11 into the wooden skeleton X while penetrating an attached portion that is a part of the opening / closing device 1, and the head portion m12 of the fastener M1 is covered with the fire-resistant covering material 50.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an installation structure for an opening and closing device that opens and closes an opening, and that fixes the opening and closing device to a wooden structure provided on the side of the opening. [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 a large building framework is constructed from wood and a large shutter device such as a heavy-duty shutter is installed on the wooden framework. In such cases, the relatively heavy guide rails are fastened to the wooden structure by fasteners such as screws and bolts. However, in the unlikely event of a fire, heat from the fire will be transferred to the fasteners, causing thermal deterioration of the fastening portions of the fasteners in the wooden structure, which may result in the fasteners becoming loose or falling 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 / closing device that fixes an opening / closing device that opens and closes an opening to a wooden structure provided to the side of the opening, the installation structure comprising: 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; and a fire-resistant fire-resistant covering material, wherein the fastener fixes the opening / closing device to the wooden structure by having the shaft portion pass through an attachment portion that is a part of the opening / closing device and being inserted into the wooden structure, and the head of the fastener is covered by the fire-resistant covering material. Effect of the Invention

[0006] Since the present invention is configured as described above, even in the unlikely event of a fire occurring, the transfer of heat due to the fire to the fastener can be reduced. [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. [Figure 4] FIG. 2 is an explanatory diagram illustrating an example of an installation structure of a switching device according to the present invention. [Diagram 5] 11 is an explanatory diagram illustrating another example of an installation structure of a switching device according to the present invention. FIG. [Figure 6] 11 is an explanatory diagram illustrating another example of an installation structure of a switching device according to the present invention. FIG. [Figure 7] 11 is an explanatory diagram illustrating another example of an installation structure of a switching device according to the present invention. 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. 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 "outer side in the width direction of the opening / closing body" refers to the direction toward the outside 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 outer side in the width direction of the opening / closing body is the right side. 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) FIG. 1 shows a switching device to which an example of an installation structure for a switching device according to the present invention is applied. 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 insulation properties (such as a gypsum board or a calcium silicate board), and one or more fire-resistant members x2 (two in the illustrated example) are layered on the surface of the wooden base x1.

[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. This winding shaft 21 may be configured in such a manner that the winding body is rotatably supported via a bearing on the outer periphery of a non-rotatable fixed shaft, or in such a manner that a shaft portion integral with the winding body is rotatably supported via a bearing on a support bracket 22.

[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 constructed integrally 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 structure X. 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 structure X by fasteners (not shown) (for example, screws, bolts, anchor members, etc.).

[0020] The guide rails 40A are long members that are continuous vertically on both ends of the opening / closing body 10 in the width direction. The guide rail 40A is fixed to the visible surface Xa of the wooden structure X so as to guide the widthwise end of the opening / closing body 10 in the opening / closing direction.

[0021] The guide rail 40A in the illustrated example integrally comprises a rail body 41 having a hollow L-shaped cross section that protrudes forward from the visible surface Xa of the wooden structure X and has its tip bent inward in the width direction of the opening / closing body (to the left in FIG. 3), a base member 42 for fastening the rail body 41 to the visible surface Xa of the wooden structure X, and a reinforcing member 43 arranged within the rail body 41 to reinforce the rail body 41. The rail body 41, the base member 42 and the reinforcing member 43 are each formed from a hard metal material (for example, steel, stainless steel, aluminum alloy, etc.).

[0022] As shown in FIG. 3, the base member 42 has a generally concave cross section that is continuous in an elongated shape in the vertical direction and has a plate-shaped portion 42a that contacts the visible surface Xa of the wooden structure X and protruding pieces 42b, 42b that protrude forward from both left and right end portions of the plate-shaped portion 42a. The base member 42 is fastened to the visible surface Xa of the wooden structure X by fasteners M1 which are inserted through the plate-shaped portions 42a.

[0023] The rail body 41 integrally includes a guide portion 41a that surrounds the widthwise end of the opening / closing body 10 in a concave cross section and guides it in the vertical direction, and a support portion 41b that protrudes forward from the visible surface Xa of the wooden structure X and supports the guide portion 41a. The rail body 41 has a rear end of the support portion 41b overlapped with both protruding pieces 42b, 42b of the previously attached base member 42. The overlapping portions are joined together by fasteners M2 (e.g., screws, bolts, rivets, etc.) that are inserted through the rail body 41. A closed space is formed within the support portion 41b (see FIG. 3).

[0024] The inner surface of the guide rail 40A in the width direction of the opening / closing body (the left side in FIG. 3) is covered with double fire-resistant members x2, x2. These fire-resistant members x2, x2 continuously cover the wooden base x1 to the support portion 41b of the rail body 41. The fire-resistant member x2 may have a single layer structure or a multi-layer structure of three or more layers.

[0025] 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).

[0026] 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.

[0027] (Guide rail installation structure) Next, a specific installation structure of the guide rail 40A will be described. Figures 4(a) and 4(b) are explanatory diagrams for explaining an example of the installation structure of the opening and closing device according to the present invention, and specifically, an installation structure in which the guide rail 40A is installed on a wooden skeleton X is shown.

[0028] The closed space within the support portion 41b of the guide rail 40A is partitioned by the reinforcing member 43 to form two air layers a1, a2, one at the front and one at the rear. The reinforcing member 43 is formed in a plate shape that is continuous in the vertical direction and is located rearward of the head m12 of the fastener M1. Both left and right ends are joined to the inner surface of the support portion 41b by, for example, welding. The reinforcing member 43 functions as a reinforcing member for reinforcing the rail main body 41 .

[0029] Of the front and rear spaces separated by the reinforcing member 43, the front space adjacent to the wooden structure X is provided with a head m12 of the fastener M1 that fastens the base member 42 to the wooden structure X, and a fixed-shape fire-resistant covering material 50 (described later) that covers the head m12 from behind.

[0030] The fastener M1 is a screw member (for example, a screw or a bolt) having a threaded portion m11 at its front end and a head portion m12 at its rear end, and a plurality of fasteners M1 are provided at intervals in the vertical direction. Each fastener M1 has a screw portion m11 that penetrates the base member 42, and a head portion m12 that is engaged with the edge of the through hole. The screw portion m11 penetrates the fire-resistant members x2, x2 and is screwed into the wooden base x1.

[0031] 3 and 4, a fixed-shape fire-resistant covering material 50 formed in a predetermined shape, such as a bottomed cylinder (cap-shaped), is provided on the head m12 of the fastener M1 as a fire-resistant and heat-insulating fire-resistant covering material. This fixed-shape fire-resistant covering material 50 is provided to prevent the fastener M1 from becoming too hot due to flames or heat in the event of a fire, and is made of fire-resistant and heat-insulating ceramics, such as silica, silicon carbide, or alumina. The shape (size) and thickness of the fixed-shape fire-resistant covering material 50 are set to an appropriate size (dimensions) that can ensure fire resistance and heat insulation.

[0032] The head m12 of the fastener M1 exposed outward from the plate-shaped portion 42a of the base member 42 is covered with this fixed fire-resistant covering material 50, thereby insulating it from flames and heat in the event of a fire and reducing the transmission of flames and heat to the fastener M1.

[0033] 4(a), an accommodating recess 51 capable of accommodating the head m12 of the fastener M1 is formed on the bottom surface 50a of the fixed fire-resistant covering material 50. The accommodating recess 51 is formed, for example, in a concave shape that accommodates the head m12 of the fastener M1 and abuts and fits with the outer peripheral surface of the head m12. When attaching the fixed-shaped fire-resistant covering material 50 to the fastener M1, the fixed-shaped fire-resistant covering material 50 can be easily attached by aligning the accommodation recess 51 of the fixed-shaped fire-resistant covering material 50 with the head m12 of the fastener M1 and pushing it in to fit it together.

[0034] In addition, the depth t of the accommodating recess 51 (the dimension from the bottom surface 50a to the bottom surface of the accommodating recess 51) may be set to be greater than the height h of the head m12 of the fastener M1, so that when the fixed fire-resistant covering material 50 is attached to the head m12 of the fastener M1, a predetermined space s (see FIG. 4(b)) is generated between the bottom of the accommodating recess 51 and the head m12 of the fastener M1. With this configuration, the space s functions as a heat insulating space, so that the transfer of heat to the fastener M1 during a fire can be further reduced.

[0035] [Guide rail installation procedure] Next, a procedure for installing the guide rail 40A will be described with reference to FIGS. <1. Installation of base material> First, as shown in Fig. 4(a), the base member 42 of the guide rail 40A is fastened to the visible surface Xa of the wooden skeleton X by the fastener M1. In this case, with the plate-shaped portion 42a of the base member 42 in contact with the surface of the fire-resistant member x2, the screw portion m11 of the fastener M1 is inserted through the plate-shaped portion 42a of the base member 42 and screwed in until the head m12 engages with the edge of the through hole. In this state, the screw portion m11 of the fastener M1 penetrates the fire-resistant members x2, x2 and screws into the wooden base x1, thereby fastening the base member 42 to the wooden skeleton X.

[0036] <2. Placement of standard fire-resistant covering material> After the base member 42 is fastened to the wooden structure X, the fixed fire-resistant covering material 50 is placed so as to cover the head m12 of the fastener M1. In this case, the fixed fire-resistant covering material 50 is pushed into and fitted into the head m12 of the fastener M1 with the accommodation recess 51 of the fixed fire-resistant covering material 50 aligned with the head m12 of the fastener M1. Since the accommodation recess 51 of the fixed fire-resistant covering material 50 is formed to abut and fit with the outer peripheral surface of the head m12 of the fastener M1, the fixed fire-resistant covering material 50 can be easily attached and fixed by simply pushing it into and fitting it into the head m12 of the fastener M1.

[0037] In this state, the bottom surface 50a of the fixed fire-resistant covering material 50 is in close contact with the plate-shaped portion 42a of the base member 42, and the head m12 of the fastener M1 is accommodated in the accommodating recess 51 of the fixed fire-resistant covering material 50, so that the fastener M1 is completely isolated from the outside (see Figure 4(b)).

[0038] When arranging the fixed fire-resistant covering material 50, for example, an epoxy-based or silicone-based adhesive having high heat resistance may be applied or injected onto the surface of the bottom surface 50a of the fixed fire-resistant covering material 50 and / or into the receiving recess 51, and then the fixed fire-resistant covering material 50 may be attached to the head m12 of the fastener M1. In this case, the fixed fire-resistant covering material 50 can be attached to the head m12 of the fastener M1 in a more stable state.

[0039] <3. Installation of the rail body> Next, the rail body 41 is attached to the base member 42 fastened to the visible surface Xa of the wooden structure X. In this case, the rear end of the support portion 41b of the rail body 41 is overlapped with both protruding pieces 42b, 42b of the base member 42, and they are integrally joined by fasteners M2 (e.g., screws, bolts, rivets, etc.). As a result, a closed space is formed inside the support portion 41b (see FIG. 3). This closed space inside the support portion 41b constitutes two air layers a1, a2, one at the front and one at the back, partitioned by the reinforcing member 43.

[0040] <4. Installation of fire-resistant materials> Finally, fire-resistant members x2, x2 are disposed on the inner side of the guide rail 40A in the width direction of the opening / closing body. These double fire-resistant members x2, x2 continuously cover the wooden base x1 to the support portion 41b of the rail main body 41 (see FIG. 3).

[0041] According to the above configuration, by disposing the fixed fire-resistant covering material 50 on the head m12 of the fastener M1, it is possible to prevent the fastener M1 from becoming too hot due to flames and heat in the event of a fire, which in turn prevents the wooden base x1 from being thermally deteriorated around the screw portion m11 of the fastener M1, and further prevents the fastener M1 from falling off or the guide rail 40A from becoming detached due to the fastener M1 falling off.

[0042] In addition, in this embodiment, when the guide rail 40A receives heat from the front side, the air layer a1 on the front side within the support portion 41b, the air layer a2 on the rear side within the support portion 41b, the fixed fire-resistant covering material 50, etc., can prevent the heat from being transmitted to the head m12 of the fastening device M1 (see Figure 3).

[0043] Furthermore, when the guide rail 40A receives heat from the outer side in the width direction of the opening / closing body (the right side in FIG. 3), the air layer a2 and the fixed fire-resistant covering material 50, etc., can prevent the heat from being transmitted to the head m12 of the fastener M1. In addition, when the guide rail 40A receives heat from the inside in the width direction of the opening / closing body (the left side in Figure 3), the fire-resistant members x2, x2 on the side of the guide rail 40A, the air layer a2, the fixed fire-resistant covering material 50, etc., can prevent the heat from being transmitted to the head m12 of the fastening device M1. This makes it possible to more effectively prevent the fastener M1 from becoming too hot due to flames or heat in the event of a fire.

[0044] Next, another embodiment of the opening and closing device installation structure according to the present invention will be described. Note that the opening and closing device installation structure shown below is a partial modification of the opening and closing device installation structure (first embodiment) described above, so that parts having the same functions and structures as those in the first embodiment are denoted by the same reference numerals and duplicated detailed descriptions will be omitted.

[0045] Second Embodiment The second embodiment shown in Figure 5 is configured such that, in the first embodiment shown in Figures 3 and 4, instead of the fixed fire-resistant coating material 50, a paste-like (putty-like) amorphous fire-resistant coating material 60 is used to cover the head of the fastener M1.

[0046] [Unshaped fireproof covering material] The amorphous fire-resistant covering material 60 as a fire-resistant covering material is disposed to prevent the fastener M1 from becoming hot due to flames and heat in the event of a fire, and is composed of an amorphous sealant having fire resistance and heat insulation, such as a paste-like (putty-like) material of silicon, modified silicon, polysulfide, etc. This amorphous fire-resistant covering material 60 can be molded into any shape that covers the head m12 of the fastener M1 during application, and after application, it hardens in a shape that completely covers the head m12, thereby exerting the desired function.

[0047] (Installation Procedure) Next, a procedure for installing the guide rail 40A will be described. <1. Installation of base material> 5(a), the base member 42 is fastened and fixed to the mounting surface Xa of the wooden skeleton X by the fastener M1. The mounting mode of this base member 42 is the same as that of the first embodiment described above.

[0048] <2. Placement of unshaped fireproof covering material> Next, the amorphous fire-resistant covering material 60 is arranged so as to cover the head m12 of the fastener M1. In this case, as shown in Fig. 5(a), the paste-like (putty-like) amorphous fire-resistant covering material 60 (60a) is applied so as to cover the entire head m12 of the fastener M1 using, for example, an injector 61 or a shape-retaining tool such as a trowel or spatula.

[0049] For example, a paste-like (putty-like) amorphous fire-resistant coating material 60 (60a) is injected (cast) onto the head m12 of the fastener M1 from the tip of a sealing nozzle 61a of an injector 61, and then formed into a shape (size, thickness) that completely covers the entire head m12 of the fastener M1 and ensures fire resistance using a shape-retaining tool such as a trowel or spatula (see FIG. 5(b)). Since the amorphous fire-resistant coating material 60 (60a) can be applied in a paste-like (putty-like) form, it can be easily applied on-site regardless of the shape or size of the head m12 of the fastener M1.

[0050] In addition, since the size and thickness of the molded amorphous fireproof covering material 60 may decrease due to drying, the amount of decrease after drying should be taken into consideration when applying. The molded amorphous fireproof covering material 60 hardens into the required shape (size, thickness) by drying and functions as a fireproof covering material.

[0051] <3. Installation of the rail body> Next, the rail body 41 is attached to the base member 42 fastened and fixed to the visible surface Xa of the wooden skeleton X. The manner in which the rail body 41 is attached is the same as in the first embodiment.

[0052] <4. Installation of fire-resistant materials> Finally, the fire-resistant members x2, x2 are disposed on the inner side of the guide rail 40A in the width direction of the opening / closing body. The manner in which the fire-resistant members x2, x2 are attached is the same as in the first embodiment.

[0053] In this embodiment, as in the first embodiment, it is possible to prevent the fastener M1 from becoming too hot due to flames or heat in the event of a fire, thereby preventing the wooden base x1 from being thermally deteriorated around the screw portion m11 of the fastener M1, and further preventing the fastener M1 from falling off or the guide rail 40A from becoming detached due to the fastener M1 falling off.

[0054] (Third embodiment) The third embodiment shown in Figures 6(a) and (b) is configured by modifying part of the structure of the guide rail 40A of the first embodiment shown in Figures 3 and 4, and by covering the head of the fastening device M1 with a paste-like (putty-like) amorphous fire-resistant covering material 60.

[0055] [Guide rail] The guide rail 40B is configured by omitting the base member 42 from the guide rail 40A of the above-mentioned first embodiment (see Figs. 3 and 4), and forming a fastening piece 41b1 fastened by a fastening device M1 on the support part 41b of the rail main body 41. Specifically, the fastening piece 41b1 extending approximately perpendicularly is integrally formed on the rear end edge of the support part 41b of the rail main body 41, and this fastening piece 41b1 contacts the visible surface Xa of the wooden structure X, and the guide rail 40B is fastened and fixed to the visible surface Xa of the wooden structure X by the fastening device M1 inserted through the fastening piece 41b1.

[0056] [Unshaped fireproof covering material] The amorphous fire-resistant covering material 60 is arranged to prevent the fastening device M1 from becoming too hot due to flames and heat in the event of a fire, and like the amorphous fire-resistant covering material 60 of the second embodiment, is composed of an amorphous sealant in a paste-like (putty-like) form such as a silicone-based, modified silicone-based, or polysulfide-based material having fire resistance and heat insulation properties.

[0057] (Installation Procedure) Next, a procedure for installing the guide rail 40B will be described. <1. Installation of the rail body> First, the rail body 41 is fastened to the visible surface Xa of the wooden structure X by the fastener M1. In this case, with the fastener piece 41b1 of the rail body 41 abutting against the surface of the fireproof member x2, the screw part m11 of the fastener M1 is inserted through the fastener piece 41b1 and screwed in until the head m12 engages with the edge of the through hole. In this state, the screw part m11 of the fastener M1 penetrates the fireproof members x2, x2 and screws into the wooden base x1, thereby fastening the rail body 41 to the wooden structure X.

[0058] <2. Placement of unshaped fireproof covering material> Next, the amorphous fire-resistant covering material 60 is arranged so as to cover the head m12 of the fastener M1. In this case, as shown in Fig. 6(a), the paste-like (putty-like) amorphous fire-resistant covering material 60 (60a) is applied so as to cover the entire head m12 of the fastener M1 using, for example, an injector 61 or a shape-retaining tool such as a trowel or spatula. The manner in which this amorphous fire-resistant covering material 60 is applied is the same as in the second embodiment described above.

[0059] <3. Installation of fire-resistant materials> Finally, the fire-resistant member x2 is disposed on the inner side of the guide rail 40B in the opening / closing body width direction. In this case, for example, the fire-resistant member x2 having a single layer structure may be disposed on the inner side of the guide rail 40A in the opening / closing body width direction. It is also possible to complete the construction with the installation structure in which the amorphous fire-resistant covering material 60 is arranged (the state shown in FIG. 6(b)) without disposing the single-layer fire-resistant member x2.

[0060] In this embodiment, as in the first embodiment, the amorphous fire-resistant coating material 60 is disposed on the head m12 of the fastener M1, thereby preventing the fastener M1 from becoming too hot due to flames or heat in the event of a fire, and thus preventing the wooden base x1 from being thermally deteriorated around the screw portion m11 of the fastener M1, and further preventing the fastener M1 from falling off or the guide rail 40B from becoming detached due to the fastener M1 falling off.

[0061] In the third embodiment, instead of the unshaped fire-resistant covering material 60, a fixed fire-resistant covering material 50 may be used for covering.

[0062] (Fourth embodiment) The fourth embodiment shown in Fig. 7(a) and (b) is an installation structure in which a pivot bracket 22 of an opening and closing device 1 is attached to a wooden skeleton X. Note that Fig. 7(b) is an explanatory diagram corresponding to a cross section taken along line (IV)-(IV) in Fig. 1.

[0063] [Support bracket] 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, 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. The mounting piece 22b of the pivot bracket 22 contacts the visible surface Xa of the wooden structure X, and the pivot bracket 22 is fastened and fixed to the visible surface Xa of the wooden structure X by a fastener M1 inserted into the mounting piece 22b.

[0064] [Shaped fireproof covering material] The fixed fire-resistant coating material 50 is arranged to prevent the fastening device M1 from becoming too hot due to flames and heat in the event of a fire, and like the fixed fire-resistant coating material 50 of the first embodiment, is made of ceramics such as silica-based, silicon carbide-based, or alumina-based ceramics having fire resistance and insulating properties.

[0065] (Installation Procedure) Next, a procedure for installing the pivot support bracket 22 will be described. <1. Installation of the pivot bracket> First, as shown in Fig. 7(a), the pivot bracket 22 is fastened to the visible surface Xa of the wooden structure X by the fastener M1. In this case, with the mounting piece 22b of the pivot bracket 22 abutting against the surface of the fire-resistant member x2, the screw portion m11 of the fastener M1 is inserted through the mounting piece 22b and screwed in until the head m12 engages with the edge of the through hole. In this state, the screw portion m11 of the fastener M1 penetrates the fire-resistant members x2, x2 and screws into the wooden base x1, thereby fastening the rail main body 41 to the wooden structure X.

[0066] <2. Placement of standard fire-resistant covering material> Next, the fixed fire-resistant covering material 50 is placed so as to cover the head m12 of the fastener M1. In this case, the fixed fire-resistant covering material 50 is pushed in and fitted in a state where the accommodation recess 51 of the fixed fire-resistant covering material 50 is aligned with the head m12 of the fastener M1. The manner in which this fixed fire-resistant covering material 50 is applied is the same as that of the first embodiment described above. The bottom surface 50a of the fixed fire-resistant covering material 50 is in close contact with the mounting piece 22b of the pivot bracket 22, and the head m12 of the fastener M1 is accommodated in the accommodation recess 51 of the fixed fire-resistant covering material 50, so that the fastener M1 is completely isolated from the outside (see FIG. 7(b)).

[0067] According to the above configuration, in this embodiment as well, as in the first embodiment, the fixed fire-resistant covering material 50 is disposed on the head m12 of the fastener M1, thereby preventing the fastener M1 from becoming too hot due to flames and heat in the event of a fire, thereby preventing the wooden base x1 from being thermally deteriorated around the screw portion m11 of the fastener M1, and further preventing the fastener M1 from falling off or the guide rail 40A from becoming detached due to the fastener M1 falling off.

[0068] In the fourth embodiment, instead of the fixed fire-resistant covering material 50, a non-fixed fire-resistant covering material 60 may be used for covering.

[0069] 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.

[0070] <Summary> As described above, the above embodiments disclose the following inventions. (1) An installation structure for an opening / closing device that fixes an opening / closing device that opens and closes an opening to a wooden structure provided to the side of the opening, the installation structure comprising: 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; and a fire-resistant fire-resistant covering material, wherein the fastener fixes the opening / closing device to the wooden structure by having the shaft portion pass through an attachment portion that is a part of the opening / closing device and being inserted into the wooden structure, and the head of the fastener is covered by the fire-resistant covering material. (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 structure by the fastener. (3) The installation structure for an opening / 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 / closing body in the width direction in the opening / closing direction, and a separate base member connected to the rail main body, the base member is fixed to the wooden structure by the fastener, and the fire-resistant covering material is configured to cover the head of the fastener and the portion of the base member that surrounds the head. (4) The installation structure of the opening and closing device described in (2) above, characterized in that the guide rail has a rail body that guides the end side of the opening and closing body in the width direction in the opening and closing direction, a fastening piece portion formed on the rail body is fixed to the wooden structure by the fastening device, and the fire-resistant covering material is configured to cover the head of the fastening device and the portion of the fastening piece portion surrounding the head. (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 installation structure for an opening and closing device described in (1) above, characterized in that the mounting portion is the pair of left and right support brackets, and the pair of left and right support brackets are fixed to the wooden structure by the fasteners. (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 connected approximately perpendicularly to the rear end edge of the support body, the attachment piece is fixed to the wooden structure by the fastener, and the fire-resistant covering material is configured to cover the head of the fastener and the portion of the attachment piece that surrounds the head. (7) The installation structure for an opening and closing device described in any one of (1) to (6) above, characterized in that the fire-resistant covering material is configured as a fixed-shape fire-resistant covering material formed into a predetermined shape capable of covering the head of the fastener. (8) The installation structure for an opening and closing device described in (7) above, characterized in that the fixed-shaped fire-resistant covering material is formed in a cylindrical shape with a bottom, and a concave accommodating recess is formed on the bottom surface of the fixed-shaped fire-resistant covering material to accommodate the head of the fastener and abut and fit against the outer peripheral surface of the head. (9) The installation structure for an opening and closing device according to any one of (1) to (6) above, characterized in that the fire-resistant coating material is made of a paste-like amorphous fire-resistant coating material capable of covering the head of the fastener. [Explanation of symbols]

[0071] 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: Shaped fireproof covering material (fireproof covering material) 51: Storage recess 60: Unshaped fireproof covering material (fireproof covering material) X: Wooden frame M1: Fastener m11: Shaft m12:head

Claims

1. An opening / closing device installation structure in which an opening / closing device that opens and closes an opening is fixed to a wooden structure provided on a side of the opening, 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 fire-resistant fire-resistant coating material; 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 head of the fastener is covered with the fire-resistant covering material. 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 is fixed to the wooden structure by the fastener, The fire-resistant covering material is configured to cover the head of the fastener and a portion of the base member surrounding the head.

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

4. The guide rail has a rail body that guides an end side of the opening / closing body in a width direction in an opening / closing direction, The fastening piece formed on the rail body is fixed to the wooden structure by the fastener, The fire-resistant covering material is configured to cover the head of the fastener and a portion of the fastening piece portion surrounding the head.

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

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 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.

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 mounting piece is fixed to the wooden structure by the fastener, The fire-resistant covering material is configured to cover the head of the fastener and a portion of the attachment piece surrounding the head.

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

7. The fire-resistant covering material is configured as a shaped fire-resistant covering material formed into a predetermined shape capable of covering the head of the fastener.

7. The installation structure of a switchgear according to claim 1.

8. The shaped fire-resistant coating material is formed into a cylindrical shape with a bottom, The bottom surface of the fixed-shaped fire-resistant covering material is formed with a concave-shaped accommodation recess that accommodates the head of the fastener and abuts and fits against the outer circumferential surface of the head.

8. The installation structure of a switchgear according to claim 7.

9. The fire-resistant coating material is made of a paste-like amorphous fire-resistant coating material capable of covering the head of the fastener.

7. The installation structure of a switchgear according to claim 1.

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