Installation structure of an opening / closing device, and its construction method.

Abstract

The present invention provides an installation structure for an opening / closing device that allows for easy installation of the device's components onto a wooden base of a fire-resistant-coated building structure, thereby improving the ease of installation. [Solution] An installation structure for installing a component 30 of an opening / closing device 1 that opens and closes an opening on a building frame X, wherein the building frame X comprises a wooden base 40 and a fire-resistant member 50 that covers the surface of the wooden base 40, the wooden base 40 is covered by the fire-resistant member 50 such that a recessed exposed portion 40d is formed, exposing a part of the wooden base 40 to the outside, and the recessed exposed portion 40d is covered by a fire-resistant cover member 60 fitted onto it, and the component 30 is fastened to the wooden base 40 together with the cover member 60 by a fastener M1 that can be screwed into the wooden base 40 while in contact with the cover member 60.

Description

Technical Field

[0001] The present invention relates to an installation structure of an opening / closing device for opening and closing an opening and a construction method thereof, which is installed on a building body having a wooden base body.

Background Art

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

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in recent years, there is a case where a large building body is composed of wood, and an opening / closing device such as a weight shutter is installed on a wooden base body made of the wood (for example, wooden columns, beams, etc.).

[0005] However, in such a case, there may already be a fireproof coating provided on the outer surface of the wooden base body, and since the constituent members of the opening / closing device (for example, guide rails, etc.) are to be fixed to the wooden base body in a state where the wooden base body cannot be visually observed, the workability is poor and there is room for improvement.

Means for Solving the Problems

[0006] In view of such problems, one aspect of the present invention has the following configuration.

[0007] An installation structure for installing components of an opening and closing device for opening and closing an opening on the building frame, wherein the building frame comprises a wooden base and a fire-resistant member covering the surface of the wooden base, the wooden base is covered by the fire-resistant member such that a recessed exposed portion is formed, exposing a part of the wooden base to the outside, and the recessed exposed portion is covered by a fire-resistant cover member fitted onto it, and the components are fastened to the wooden base together with the cover member by fasteners that can be screwed onto the wooden base while in contact with the cover member. [Effects of the Invention]

[0008] As described above, the present invention is configured such that the components of the opening and closing device can be easily installed on a wooden base of a fire-resistant-coated building frame, thereby improving the ease of installation. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic front view showing the installation structure of the opening / closing device according to the present invention. [Figure 2] This is a side view schematic (including a partial cross-section) showing the installation structure of the opening and closing device. [Figure 3] This is a schematic cross-sectional view showing an example of an installation structure for an opening and closing device according to the present invention, specifically illustrating an installation structure for a guide rail. [Figure 4] This is an explanatory diagram illustrating the installation procedure for the guide rail. [Figure 5] This is an explanatory diagram illustrating the installation procedure for the guide rail. [Figure 6] This is an explanatory diagram illustrating the installation procedure for the guide rail. [Figure 7] This is another example of the installation structure for an opening and closing device according to the present invention, and is a schematic cross-sectional view showing the installation structure of a pivot bracket. [Figure 8] This is an explanatory diagram illustrating the construction procedure for the installation structure of the coaxial support bracket. [Figure 9]It is an explanatory drawing for explaining the construction procedure of the installation structure of the coaxial support bracket. [Figure 10] It is an explanatory drawing for explaining the construction procedure of the installation structure of the coaxial support bracket.

Embodiments for Carrying out the Invention

[0010] Next, embodiments according to the present invention will be described in detail based on the drawings. In this specification, the "width direction of the opening / closing body" means a direction that is substantially orthogonal to the opening / closing direction of the opening / closing body and is not the thickness direction of the opening / closing body (the left - right direction in FIG. 1).

[0011] (First Embodiment) FIG. 1 is a front schematic view showing the installation structure of the opening / closing device according to the present invention, and FIG. 2 is a side schematic view (including a partial cross - section) showing the installation structure of the same opening / closing device.

[0012] The opening / closing device 1 includes an opening / closing body 10 that closes in a manner of partitioning a space, a storage portion 20 that extends the opening / closing body 10 in the closing direction or stores it in the opening direction, and a guide rail 30 that guides the opening / closing body 10 in the closing direction and the opening direction.

[0013] The building body X is a large - scale building mainly made of wood. As shown in FIG. 2, this building body X includes, for example, a wooden base 40 and a fire - resistant member 50 that covers the outer surface of the wooden base 40.

[0014] In the present embodiment, the fire - resistant member 50 is provided in a two - layer structure including a first - layer fire - resistant member arranged in contact with the vertically extending wooden base 40 and a second - layer fire - resistant member arranged to cover the first - layer fire - resistant member, and is arranged so that the outer surface of the wooden base 40 is not exposed to the outside.

[0015] Note that the fire - resistant member 50 can also be configured as a single layer (single - layer structure) or a multi - layer structure of three or more layers.

[0016] The wooden base body 40 is a wooden building material that constitutes the basic framework of the building body X. For example, it is a square-columnar wood that constitutes columns, beams, etc., or a flat structural plywood that constitutes wall surfaces. The wooden base body 40 shown in FIG. 2 is erected so as to extend vertically from the floor surface below the opening and closing device 1 to the ceiling portion 2 above the opening and closing device 1.

[0017] The fire-resistant member 50 is a plate-shaped building material having fire resistance and heat insulation properties (for example, a gypsum board, a calcium silicate board, etc.), and is provided so as to cover the outer surface of the wooden base body 40. The specific installation mode of the fire-resistant member 50 will be described later.

[0018] The opening and closing body 10 (for example, a shutter) is configured by connecting a plurality of slats 10a formed by bending a horizontally long substantially rectangular metal plate so as to rotate between the upper and lower sides. As another example of the opening and closing body 10, for example, a mode composed of a plurality of panels, a mode in which a plurality of pipes are arranged at intervals in the vertical direction, a mode composed of a flexible sheet, a mode in which slats, panels, pipes, etc. are appropriately combined, etc. are possible.

[0019] The storage part 20 includes a winding shaft 21 for winding and unwinding the opening and closing body 10, shaft support brackets 22, 22 that support the winding shaft 21 at both ends thereof, a winding shaft case 23 that covers the periphery of the winding shaft 21 and the opening and closing body 10 wound around the winding shaft 21, an opening and closing machine 24 that is a drive source for driving the winding shaft 21 to rotate, a support base frame 25 that supports the shaft support brackets 22, 22, the winding shaft case 23, etc.

[0020] The winding shaft 21 is configured in a long cylindrical shape extending in the width direction of the opening and closing body, and is rotatably supported. The winding shaft 21 may be in a mode in which a winding body is rotatably supported on the outer periphery of a non-rotatable fixed shaft via a bearing, or a mode in which a shaft portion integrated with the winding body is rotatably supported by the shaft support bracket 22 via a bearing.

[0021] The shaft support bracket 22 is for making both end portions of the winding shaft 21 rotatable, and is configured, for example, by appropriately processing a metal plate material (for example, press working, bending working, etc.).

[0022] The specific configuration of this pivot bracket 22 and its installation structure will be described later.

[0023] The winding shaft case 23 is formed in a long shape with a longitudinal cross-section that is roughly U-shaped or arc-shaped, continuing in the direction of opening and closing width. This winding shaft case 23 is fixed to the support base frame 25 so as to cover the winding shaft 21 and the opening and closing body 10 that is wound around the winding shaft 21 from the front side (left side according to Figure 2).

[0024] The opening / closing mechanism 24 is composed of an electric motor, gears, etc. This opening / closing mechanism 24 is supported by one of the shaft support brackets 22 (on the right side according to Figure 1), and its rotational force is transmitted to the winding shaft 21 by a chain and sprockets, etc. (not shown).

[0025] The support base frame 25 is constructed as a single unit comprising: a long connecting section 25a that supports the left and right pivot brackets 22, 22 and the winding shaft case 23 at their lower ends by connecting multiple long, rigid members (for example, various steel materials such as angle steel and channel steel); and a support section 25b that supports the approximately central portion of the connecting section 25a in the lateral direction and is fixedly secured to the rear building structure X by fasteners (not shown) (for example, screws, bolts, anchor members, etc.). Although Figure 1 shows an example in which one support section 25b is arranged in the lateral direction of the connecting section 25a, the number of support sections 25b installed may be multiple.

[0026] The guide rail 30 is a long, continuous member extending vertically at both ends of the opening / closing body 10 in the width direction. The guide rail 30 is fixed to the building structure X so as to guide the width direction ends of the opening / closing body 10 in the opening / closing direction.

[0027] (Guide rail structure) The specific structure of the guide rail 30 will be described below. Figure 3 is an example of the installation structure of the opening and closing device according to the present invention, and is a schematic cross-sectional view showing the installation structure of the guide rail. Figures 4 to 6 are explanatory diagrams illustrating the construction procedure of the guide rail.

[0028] As shown in Figures 3 and 6, the guide rail 30 integrally comprises a rail body 31 that protrudes forward from the visible surface of the building frame X, and a base member 32 for fastening the rail body 31 to the wooden base 40.

[0029] These rail bodies 31 and base members 32 are formed from, for example, metal materials (steel, stainless steel, aluminum alloy, etc.).

[0030] The base member 32 has a substantially concave cross-section that is continuous in a long length in the vertical direction, with a plate-like portion 32a that contacts the visible surface of the building frame X and projecting portions 32b, 32b that protrude perpendicularly (towards the front) from both the left and right ends of the plate-like portion 32a. This base member 32 is fastened and fixed to the wooden base 40 together with the cover members 60 (61, 62) described later by fasteners M1.

[0031] The rail body 31 integrally includes a guide portion 31a having a guide recess that surrounds the widthwise end of the opening / closing body 10 in a concave cross-section and guides it in the vertical direction, a support portion 31b that protrudes forward from the visible surface of the building frame X and supports the guide portion 31a, and a reinforcing portion 31c that is connected to the guide portion 31a and the support portion 31b and functions as a reinforcement portion of the rail body 31.

[0032] These guide portion 31a, support portion 31b, and reinforcing portion 31c are each integrally formed, for example, by bending a flat metal plate or by welding the respective parts, and are then fixed together by fastening means such as welding to form a single rail body 31.

[0033] Furthermore, the rail body 31 is integrally joined by fasteners M2 (for example, screws, bolts, rivets, etc.) that are inserted through the overlapping portion, with the rear end of the guide portion 31a and the rear end of the support portion 31b overlapping the respective protruding portions 32b, 32b of the base member 32 which has been fixed in place earlier. A closed space 30A (air layer) is then formed in the guide rail 30 by the guide portion 31a, the support portion 31b, the reinforcing portion 31c and the base member 32.

[0034] Furthermore, the lower end of the guide rail 30 is fixed to a fixed part below (for example, the floor, lower frame, threshold, etc.) via a bracket or the like (not shown). The upper end is fixed to a fixed part on the storage section 20 side, for example, via a bracket or the like (not shown).

[0035] Other examples of the guide rail 30 include configurations in which it is made up of multiple members other than those shown in the illustration, forming a hollow column, or configurations in which it is made up as a single hollow tube.

[0036] (Guide rail installation structure and construction method) Next, we will describe specific installation structures and construction methods for the guide rail 30. The guide rail 30 is attached and fixed to the wooden base 40 via fire-resistant cover members 60 (61, 62). In other words, the wooden base 40 is covered by fire-resistant members 50 (51, 52, 53) such that a concave exposed portion 40d (see Figures 4 and 5) is formed, exposing a part of the wooden base 40 to the outside, and this concave exposed portion 40d is covered by the fire-resistant cover members 60 (61, 62) fitted onto it. The guide rail 30 is then fixed to the wooden base 40 together with the cover members 60 by fasteners M1 that can be screwed into the wooden base 40, while in contact with the cover members 60.

[0037] This guide rail 30 can be installed, for example, by the following process (procedure).

[0038] <Step 1: Arrangement of fire-resistant components> First, as shown in Figure 4, the fire-resistant member 50 is placed on the wooden base 40. In this case, the fire-resistant member 50 is placed such that a concave exposed portion 40d is formed on a part of the surface of the wooden base 40 on the side where the guide rail 30 is attached (visible surface 40a), exposing it to the outside.

[0039] This fire-resistant member 50 is arranged to constitute the wall surface of the building frame X and includes, for example, a first fire-resistant member 51 that covers the back surface 40b (the surface opposite to the visible surface 40a) of the wooden base 40, a second fire-resistant member 52 that covers the visible surface 40c of the wooden base 40, and a third fire-resistant member 53 that covers the visible surface 40a of the wooden base 40. Each of these members includes a first layer 51a, 52a, 53a that abuts against the wooden base 40, and a second layer 51b, 52b, 53b that covers the first layer 51a, 52a, 53a from the outside.

[0040] Each of the first to third fire-resistant members 51, 52, and 53, the first layer 51a, 52a, and 53a, are formed in the shape of a plate with a predetermined thickness t1 and made of the same material, and each of the second layer 51b, 52b, and 53b, the second layer of the first to third fire-resistant members 51, 52, and 53, are formed in the shape of a plate with a predetermined thickness t2 and made of the same material.

[0041] The following will provide a detailed explanation of a specific example of the construction process for Step 1, with reference to the drawings.

[0042] [Process 1-1] First, as shown in Figure 4, the first fire-resistant member 51 is attached and fixed so as to cover the back surface 40b of the wooden base 40. In this case, first, the first layer 51a of the first fire-resistant member 51 is placed on the back surface 40b of the wooden base 40 and fixed in place with fasteners (not shown), such as screws or bolts. Next, the second layer 51b is attached to the surface of the fixed first layer 51a using adhesive or other fastening means.

[0043] [Step 1-2] Next, the second fire-resistant member 52 is attached and fixed so as to cover the visible surface 40c of the wooden base 40. In this case, first, the first layer 52a of the second fire-resistant member 52 is placed on the visible surface 40c of the wooden base 40 and fixed in place with fasteners (not shown), such as screws or bolts. Then, the second layer 52b is attached to the surface of the fixed first layer 52a using adhesive or other fixing means.

[0044] Furthermore, the leading edge 52a1 of the first layer 52a of the second fire-resistant member 52 is positioned to protrude by a predetermined dimension d1 from the visible surface 40a of the wooden base 40, and the leading edge 52b1 of the second layer 52b is positioned to protrude by a predetermined dimension d2 from the visible surface 40a of the wooden base 40.

[0045] The predetermined dimension d1 is set to the same dimension as the thickness t1 of the first layer 53a of the third fire-resistant member 53, and the predetermined dimension d2 is set to the same dimension as the sum (t1 + t2) of the thickness t1 of the first layer 53a and the thickness t2 of the second layer 53b of the third fire-resistant member 53.

[0046] Furthermore, when fastening the first layer 52a of the second fire-resistant member 52 to the wooden base 40 using fasteners (not shown), it is advisable to mark the fastening points (height positions) of the fasteners on the exposed surface 40a of the wooden base 40 with dots, lines, or other markers.

[0047] When attaching the cover member 60 in step 2, which will be described later, the fastener M1 can be screwed in while avoiding this mark, thus preventing the fastener M1 and the fastener (not shown) that fastens and fixes the first layer 52a of the second fire-resistant member 52 from intersecting and coming into contact (interfering) with each other.

[0048] [Step 1-3] Next, the third fire-resistant member 53 is positioned such that a portion of the visible surface 40a of the wooden base 40 is exposed to the outside. In this case, the first layer 53a of the third fire-resistant member 53 is positioned so that it overlaps a portion of the visible surface 40a of the wooden base 40 by a predetermined dimension d3. When positioning, the overlapping portion of the first layer 53a by the predetermined dimension d3 may be temporarily fixed to the wooden base 40 using fasteners such as small screws or bolts (not shown), or adhesive means such as adhesive material.

[0049] Next, the second layer 53b is bonded and fixed to the surface of the first layer 53a using a fixing means such as an adhesive. In this case, the leading edge 53b1 of the second layer 53b is positioned offset by a predetermined dimension d4 in the width direction of the opening / closing body from the leading edge 53a1 of the first layer 53a, so that a portion of the first layer 53a is exposed.

[0050] As a result of this step 1, the building frame X will have a concave exposed portion 40d where a part of the visible surface 40a of the wooden base 40 is exposed, and this exposed portion 40d will clearly indicate the mounting position of the guide rail 30. In other words, the installer can easily determine the mounting position of the guide rail 30 by visual inspection.

[0051] <Step 2: Arrangement of cover components> Next, as shown in Figure 5, the cover member 60 is placed on the exposed portion 40d of the wooden base 40. In this case, the cover member 60 is positioned vertically to cover the entire exposed portion 40d of the wooden base 40 that extends vertically.

[0052] The cover member 60 consists of, for example, a first cover member 61 that covers the exposed portion 40d of the wooden base 40 and is positioned in contact with the exposed surface 40a, and a second cover member 62 that is positioned to cover the surface of the first cover member 61.

[0053] The first cover member 61 is made of a fire-resistant member made of the same material having the same thickness t1 as the first layer 51a, 52a, 53a of the first to third fire-resistant members 51, 52, 53. The second cover member 62 is made of a fire-resistant member made of the same material having the same thickness t2 as the second layer 51b, 52b, 53b of the first to third fire-resistant members 51, 52, 53.

[0054] The first cover member 61 is positioned to cover the exposed portion 40d of the wooden base 40 and to abut against the exposed surface 40a. Specifically, the width w1 of the first cover member 61 is set to be slightly smaller than the distance L1 between the first layer 52a of the second fire-resistant member 52, which is positioned on the visible surface 40c side of the wooden base 40, and the first layer 53a of the third fire-resistant member 53, which is positioned on the visible surface 40a side, so that it fits between the second fire-resistant member 52 and the third fire-resistant member 53.

[0055] Furthermore, the second cover member 62 is positioned to cover the first cover member 61 from the outside. Specifically, the width w2 of the second cover member 62 is set to be slightly smaller than the distance L2 between the second layer 52b of the second fire-resistant member 52, which is positioned on the visible surface 40c side of the wooden base 40, and the second layer 53b of the third fire-resistant member 53, which is positioned on the visible surface 40a side, and is positioned to fit between the second fire-resistant member 52 and the third fire-resistant member 53.

[0056] When this cover member 60 is installed on the wooden base 40 side, as shown in Figure 6, left and right first boundaries z1 are formed between the first cover member 61 and the first layer 52a of the second fire-resistant member 52, and between the first cover member 61 and the first layer 53a of the third fire-resistant member 53, which serve as the boundaries (joints) between each member.

[0057] Furthermore, second boundaries z2 are formed on the left and right sides, which serve as the boundaries (joints) between each member, between the second cover member 62 and the second layer 52b of the second fire-resistant member 52, and between the second cover member 62 and the second layer 53b of the third fire-resistant member 53.

[0058] As shown in Figure 6, the first boundary z1 and the second boundary z2 are positioned offset in the width direction of the opening / closing body. Therefore, even if flames or heat enter through the second boundary z2 located on the outside during a fire, each second boundary z2 is positioned offset from each first boundary z1, thus preventing further penetration of flames or heat into the wooden base 40.

[0059] Furthermore, as described above, in step 1-2, the fastening points of the fasteners (not shown) that fasten the first layer 52a of the second fire-resistant member 52 are marked on the exposed surface 40a of the wooden base 40 at their height, so the installer should visually confirm their location in advance. In this case, the location may also be marked on the surface of the second cover member 62 or the second layer 53b of the third fire-resistant member 53, etc.

[0060] <Step 3: Arranging the fire-resistant sheet> Next, the fire-resistant sheet 100 is placed at the second boundary (joint) Z2. Specifically, between the second cover member 62 and the second layer 52b of the second fire-resistant member 52, and between the second cover member 62 and the second layer 53b of the third fire-resistant member 53, there are left and right second boundaries z2 that extend vertically at a predetermined distance in the width direction of the opening / closing body. Therefore, the left and right fire-resistant sheets 100a and 100b are placed so as to cover each of these second boundaries z2.

[0061] The fire-resistant sheet 100 can be made of, for example, silica cloth, glass cloth, or fiberglass tape, which have fire-resistant and heat-insulating properties, and is formed in a long, strip-like shape with a width that spans the second boundary Z2 and is approximately the same as the vertical length of the cover member 60.

[0062] Furthermore, the fire-resistant sheet 100 is attached to cover the second boundary z2 using, for example, a heat-resistant / fire-resistant adhesive or adhesive material. In this case, the fire-resistant sheet 100 may be constructed with a portion of its back surface already coated with a heat-resistant / fire-resistant adhesive or adhesive material.

[0063] By positioning the fire-resistant sheet 100 to cover the second boundary Z2, damage (such as chipping) to the second boundary Z2 can be prevented, and furthermore, flames and heat in the event of a fire can be prevented from penetrating from the second boundary Z2 to the wooden base 40.

[0064] In this embodiment, the fire-resistant sheet 100 is composed of left and right fire-resistant sheets 100a and 100b, and each of the left and right second boundary z2 is covered by each of the fire-resistant sheets 100a and 100b. However, the embodiment is not limited to this example. For example, the fire-resistant sheet 100 may be configured as a single fire-resistant sheet of a size that can cover both the left and right second boundary z2.

[0065] Furthermore, the placement of the fire-resistant sheet 100 is arbitrary, and the system may be configured to install the guide rail 30 in the next step 4 without providing the fire-resistant sheet 100 (by omitting step 3).

[0066] <Step 4: Installation of guide rails> Next, the guide rail 30 is installed. This step 4 consists of, for example, the following steps.

[0067] [Step 4-1: Arrangement of base components] The base member 32 of the guide rail 30 is placed on the second cover member 62. In this case, a portion of the back surface of the plate-shaped portion 32a of the base member 32 is positioned to overlap the left and right fire-resistant sheets 100a and 100b. By positioning them in this way, the fire-resistant sheets 100a and 100b are held down by the plate-shaped portion 32a, preventing them from peeling off.

[0068] [Step 4-2: Fixing the base component] Next, the fastener M1 is screwed in so that it passes through the plate-shaped portion 32a of the base member 32. In this case, multiple fasteners M1 are driven into the plate-shaped portion 32a of the base member 32 at predetermined intervals in the vertical direction and screwed in. As a result, the base member 32, together with the cover member 60, is firmly fixed to the wooden base 40.

[0069] Each fastener M1 is a screw-type fastener (such as a screw or bolt) having a shaft with a threaded portion m1 at its tip and a head m2 at its rear end, and multiple fasteners are provided at intervals in the vertical direction. The threaded portion m1 (shaft) of each fastener M1 passes through the base member 32 and the cover member 60 and is screwed into the wooden base 40.

[0070] During step 4-2, through holes can be drilled in the plate-shaped portion 32a of the base member 32 and the cover member 60 using a general-purpose tool such as an electric drill during installation, allowing the screw portion m1 to be inserted.

[0071] Furthermore, in the preceding step 2, the installer is aware of the fastening position (height of the fastening point) of the fastener (not shown) that fastens the first layer 52a of the second fire-resistant member 52 to the wooden base 40, or marks that position on the surface of the second cover member 62 or the second layer 53b of the third fire-resistant member 53, etc., so when installing the base member 32, the fastener M1 can be screwed in at a height offset from the height of this fastener (not shown).

[0072] Therefore, when screwing the fastener M1 into the wooden base 40, it is possible to prevent interference by intersecting the fastener (not shown) that fastens and fixes the first layer 52a of the second fire-resistant member 52.

[0073] [Step 3-4: Attaching the rail body] Next, the rail body 31 is attached to the base member 32. In this case, the rear end of the guide portion 31a and the rear end of the support portion 31b of the rail body 31 are overlapped with the respective protruding portions 32b, 32b of the base member 32 and integrally joined by fasteners M2 (for example, screws, bolts, rivets, etc.). Note that through holes can be drilled in the base member 32 and the rail body 31, etc., during installation using a general-purpose tool such as an electric drill to insert the shaft portion (threaded portion) of the fasteners M2. As a result, a closed space 30A (air layer) is formed in the guide rail 30 by the guide portion 31a, support portion 31b, reinforcing portion 31c, and base member 32 (see Figure 3).

[0074] In the above embodiment, the fire-resistant member 50 was configured as a two-layer structure, but it may also be configured as a single layer (single-layer structure) or a multi-layer structure of three or more layers.

[0075] With the above configuration, when installing the guide rail 30 of the opening / closing device 1 onto the wooden base 40 of the building frame X, the installation position can be visually confirmed by the exposed portion 40d, so the guide rail 30 can be easily installed on the building frame X, improving the ease of installation.

[0076] Furthermore, since the fastening position of the first layer 52a of the second fire-resistant member 52 can be determined by the mark attached to the exposed portion 40d of the wooden base 40, the fastener M1 can be screwed in while avoiding this mark when installing the guide rail 30. Therefore, it is possible to prevent the fasteners that are secured in each step from coming into contact (interfering) with each other during construction, thereby improving the ease of construction.

[0077] Furthermore, since the first boundary z1 and the second boundary z2, formed by the installation of the cover member 60, are positioned to be offset in the width direction of the opening / closing body, even if flames or heat enter through the second boundary z2 located on the outside during a fire, the flames or heat will not penetrate to the first boundary z1 on the inside, and consequently, it is possible to prevent flames or heat from entering the wooden base 40.

[0078] Furthermore, if the fire-resistant sheet 100 is placed to cover the second boundary z2, damage to the second boundary z2 can be prevented, and flames and heat in the event of a fire can be prevented from penetrating from the second boundary z2 to the wooden base 40.

[0079] Furthermore, in this embodiment, since the head m2 and a portion of the shaft of the fastener M1 are located within the closed space 30A (air layer) of the guide rail 30, even if the guide rail 30 is exposed to flames or heat from outside due to a fire, this space 30A (air layer) can prevent that heat from being transmitted to the fastener M1. Therefore, it is possible to prevent thermal deterioration (damage) of the wooden base 40 around the screw portion m1 of the fastener M1, and to prevent the fastener M1 from falling off or the guide rail 30 from coming off due to the fastener M1 falling off.

[0080] (Second embodiment) Next, as another embodiment of the installation structure of the opening / closing device 1 according to the present invention, an example of the installation structure and construction method of the pivot bracket 22 will be described. Figure 7 is a schematic cross-sectional view showing the installation structure of the pivot bracket, which is another example of the installation structure of the opening / closing device according to the present invention. Figures 8 to 10 are explanatory diagrams illustrating the construction procedure of the installation structure of the pivot bracket.

[0081] (Installation structure and construction method of pivot brackets) The pivot bracket 22 comprises a flat support body 22a that rotatably supports the winding shaft 21, and a mounting piece 22b connected substantially perpendicularly from the rear edge of the support body 22a inward in the width direction of the opening / closing body, and is formed in a substantially L-shape in plan view. This pivot bracket 22 is integrally formed, for example, by bending a flat metal plate or by welding each part.

[0082] The pivot bracket 22 is attached and fixed to the wooden base 70 via a fire-resistant cover member 90 (91, 92). In other words, the wooden base 70 is covered by the fire-resistant member 80 (81, 82, 83) such that a concave exposed portion 70c (see Figures 8 and 9) is formed, exposing a part of the wooden base 70 to the outside, and this concave exposed portion 70c is covered by the fire-resistant cover member 90 (91, 92) fitted onto it. The pivot bracket 22 is then fixed to the wooden base 70 together with the cover member 90 by a fastener M1 that can be screwed into the wooden base 70, while in contact with the cover member 90.

[0083] The wooden base 70 is a wooden building material that constitutes the basic framework of the building frame X, and is, for example, a rectangular column-shaped piece of wood that makes up columns and beams, or a flat structural plywood that makes up the walls. The fire-resistant members 80 (81, 82, 83) are plate-shaped building materials that have fire resistance and heat insulation properties (for example, gypsum board or calcium silicate board), and are provided to cover the outer surface of the wooden base 70.

[0084] This pivot bracket 22 can be installed, for example, by the following steps (procedures).

[0085] <Step 1: Arrangement of fire-resistant components> First, as shown in Figure 8, the fire-resistant member 80 is placed on the wooden base 70. In this case, the fire-resistant member 80 is placed such that a concave exposed portion 70c is formed on a part of the surface of the wooden base 70 on the side where the pivot bracket 22 is attached (visible surface 70a), exposing it to the outside.

[0086] This fire-resistant member 80 is arranged to constitute the wall surface of the building frame X and includes, for example, a first fire-resistant member 81 that covers the back surface 70b (the surface opposite to the visible surface 70a) of the wooden base 70, and a second fire-resistant member 82 and a third fire-resistant member 83 that cover the visible surface 70a of the wooden base 70. Each of these members includes a first layer 81a, 82a, 83a that abuts against the wooden base 70, and a second layer 81b, 82b, 83b that covers the first layer 81a, 82a, 83a from the outside.

[0087] Each of the first to third fire-resistant members 81, 82, and 83, the first layer 81a, 82a, and 83a, is formed in the shape of a plate with a predetermined thickness t1 made of the same material, and each of the second layer 81b, 82b, and 83b, the second layer of the first to third fire-resistant members 81, 82, and 83, is formed in the shape of a plate with a predetermined thickness t2 made of the same material.

[0088] The following will provide a detailed explanation of a specific example of the construction process for Step 1, with reference to the drawings.

[0089] [Process 1-1] First, as shown in Figure 8, the first fire-resistant member 81 is attached and fixed so as to cover the back surface 70b of the wooden base 70. In this case, first, the first layer 81a of the first fire-resistant member 81 is placed on the back surface 70b of the wooden base 70 and fixed in place with fasteners (not shown), such as screws or bolts. Next, the second layer 81b is attached to the surface of the fixed first layer 81a using adhesive or other fastening means.

[0090] [Step 1-2] Next, the first layers 82a and 83a of the second and third fire-resistant members 82 and 83 are arranged such that a portion of the visible surface 70a of the wooden base 70 is exposed to the outside. In this case, the first layers 82a and 83a are each spaced apart by a predetermined distance, and a portion of each adjacent layer overlaps a portion of the visible surface 70a of the wooden base 70 by a predetermined dimension d5. When arranging them, the overlapping portion of the first layers 82a and 83a by the predetermined dimension d5 may be temporarily fixed to the wooden base 70 using fasteners such as small screws or bolts (not shown), or adhesive means such as adhesive material.

[0091] Next, the second layers 82b and 83b are attached to the surfaces of the first layers 82a and 83a, respectively, using adhesive or other fixing means. In this case, the leading edges 82b1 and 83b1 of the second layers 82b and 83b are positioned so as to be offset by a predetermined dimension d6 in the width direction of the opening / closing body from the leading edges 82a1 and 83a1 of the first layers 82a and 83a, so that a portion of the first layers 82a and 83a is exposed.

[0092] As a result of this step 1, the building frame X will have a concave exposed portion 70c where a part of the visible surface 70a of the wooden base 70 is exposed, and this exposed portion 70c will clearly indicate the mounting position of the pivot bracket 22. In other words, the installer can easily determine the mounting position of the pivot bracket 22 by visual inspection.

[0093] <Step 2: Arrangement of cover components> Next, as shown in Figure 9, the cover member 90 is placed on the exposed portion 70c of the wooden base 70. In this case, the cover member 90 is positioned vertically to cover the entire exposed portion 70c of the wooden base 70 that extends vertically.

[0094] The cover member 90 consists of, for example, a first cover member 91 that covers the exposed portion 70c of the wooden base 70 and is positioned in contact with the exposed surface 70a, and a second cover member 92 that is positioned to cover the surface of the first cover member 91.

[0095] The first cover member 91 is made of a fire-resistant member made of the same material having the same thickness t1 as the first layer 81a, 82a, 83a of the first to third fire-resistant members 81, 82, 83. The second cover member 92 is made of a fire-resistant member made of the same material having the same thickness t2 as the second layer 81b, 82b, 83b of the first to third fire-resistant members 81, 82, 83.

[0096] The first cover member 91 is positioned to cover the exposed portion 70c of the wooden base 70 and to abut against the exposed surface 70a. Specifically, the width w3 of the first cover member 91 is set to be slightly smaller than the distance L3 between the edge of the first layer 82a of the second fire-resistant member 82 and the edge of the first layer 83a of the third fire-resistant member 83, and is positioned to fit between the second fire-resistant member 82 and the third fire-resistant member 83.

[0097] Furthermore, the second cover member 92 is positioned to cover the first cover member 91 from the outside. Specifically, the width w4 of the second cover member 92 is set to be slightly smaller than the distance L4 between the end of the second layer 82b of the second fire-resistant member 82 and the end of the second layer 83b of the third fire-resistant member 83, so that it fits between the second fire-resistant member 82 and the third fire-resistant member 83.

[0098] When this cover member 90 is installed on the wooden base 70 side, as shown in Figure 10, left and right first boundaries z3, which serve as the boundaries (joints) between each member, are formed between the first cover member 91 and the first layer 82a of the second fire-resistant member 82, and between the first cover member 91 and the first layer 83a of the third fire-resistant member 83.

[0099] Furthermore, second boundaries z4 are formed on the left and right sides, which serve as the boundaries (joints) between each member, between the second cover member 92 and the second layer 82b of the second fire-resistant member 82, and between the second cover member 92 and the second layer 83b of the third fire-resistant member 83.

[0100] As shown in Figure 10, the first boundary z3 and the second boundary z4 are positioned so as to be offset in the width direction of the opening / closing body. Therefore, even if flames and heat penetrate through each second boundary z4 located on the outside during a fire, each second boundary z4 is located at a position offset from each first boundary z3, thus preventing further penetration of flames and heat into the wooden base 70.

[0101] <Step 3: Arranging the fire-resistant sheet> Next, the fire-resistant sheet 110 is placed at the second boundary (joint) Z4. Specifically, between the second cover member 92 and the second layer 82b of the second fire-resistant member 82, and between the second cover member 92 and the second layer 83b of the third fire-resistant member 83, there are left and right second boundaries z4 that extend vertically at a predetermined distance in the width direction of the opening / closing body. Therefore, the left and right fire-resistant sheets 110a and 110b are placed so as to cover each of these second boundaries z4.

[0102] The fire-resistant sheet 110 can be made of, for example, silica cloth, glass cloth, or fiberglass tape, which have fire-resistant and heat-insulating properties, and is formed in a long, strip-like shape with a width that spans the second boundary Z4 and is approximately the same as the vertical length of the cover member 90.

[0103] Furthermore, the fire-resistant sheet 110 is attached to cover the second boundary z4 using, for example, a heat-resistant / fire-resistant adhesive or adhesive material. In this case, the fire-resistant sheet 110 may be constructed with a portion of its back surface pre-applied with a heat-resistant / fire-resistant adhesive or adhesive material.

[0104] By positioning the fire-resistant sheet 110 to cover the second boundary Z4, damage (such as chipping) to the second boundary Z4 can be prevented, and furthermore, flames and heat in the event of a fire can be prevented from penetrating from the second boundary Z4 to the wooden base 70.

[0105] In this embodiment, the fire-resistant sheet 110 is composed of left and right fire-resistant sheets 110a and 110b, and each of the left and right second boundary z4 is covered by each of the fire-resistant sheets 110a and 110b. However, the embodiment is not limited to this example. For example, the fire-resistant sheet 110 may be configured as a single fire-resistant sheet of a size that can cover both the left and right second boundary z4.

[0106] Furthermore, the placement of the fire-resistant sheet 110 is arbitrary, and the system may be configured to install the pivot bracket 22 in the next step 4 without providing the fire-resistant sheet 110 (by omitting step 3).

[0107] <Step 4: Installation of the support bracket> Next, the pivot bracket 22 is placed on the second cover member 92. In this case, a portion of the mounting piece 22b of the pivot bracket 22 is positioned so as to overlap the left and right fire-resistant sheets 110a and 110b. By positioning them in this way, the fire-resistant sheets 110a and 110b are held down by the mounting piece 22b, preventing them from peeling off.

[0108] Next, the fastener M1 is screwed in so that it passes through the mounting piece 22b. In this case, multiple fasteners M1 are driven in and screwed into the mounting piece 22b at predetermined intervals in the vertical direction. As a result, the pivot bracket 22 is firmly fixed to the wooden base 70 together with the cover member 90.

[0109] The fastener M1 is a screw-type component (such as a screw or bolt) having a shaft with a threaded portion m1 at the tip and a head m2 at the rear end. The threaded portion m1 (shaft) passes through the mounting piece 22b and the cover member 90 and is screwed into the wooden base 70. During step 4, through holes can be drilled in the mounting piece 22b and the cover member 90 using a general-purpose tool such as an electric drill during installation, allowing the screw portion m1 to be inserted.

[0110] In the above embodiment, the fire-resistant member 80 was configured as a two-layer structure, but it may also be configured as a single layer (single-layer structure) or a multi-layer structure of three or more layers.

[0111] With the above configuration, when installing the pivot bracket 22 of the opening / closing device 1 onto the wooden base 70 of the building frame X, the mounting position can be visually confirmed by the exposed portion 70c, so the pivot bracket 22 can be easily installed on the building frame X, thereby improving the ease of installation.

[0112] Furthermore, since the first boundary z3 and the second boundary z4, formed by the installation of the cover member 91, are positioned to be offset in the width direction of the opening / closing body, even if flames or heat enter through the second boundary z4 located on the outside during a fire, the flames or heat will not penetrate to the first boundary z3 on the inside, and consequently, it is possible to prevent flames or heat from entering the wooden base 70.

[0113] Furthermore, if the fire-resistant sheet 110 is placed to cover the second boundary z4, damage to the second boundary z4 can be prevented, and flames and heat in the event of a fire can be prevented from penetrating from the second boundary z4 to the wooden base 70.

[0114] Furthermore, the present invention is not limited to the specific configurations described above, and can be modified as appropriate without altering the essence of the invention.

[0115] For example, in the above embodiment, the configuration of the vertically extending wooden bases 40 and 70 is shown in cross-section, but it is also possible to apply this to a wooden base extending horizontally as an installation structure for the components of the opening / closing device 1. Furthermore, the same configuration can be applied not only to the guide rail 30 and pivot bracket 22, but also to other locations where components such as lintels and lower frames that make up the opening / closing device 1 are installed. In this case, it is mainly applied to wooden bases that extend in the width direction of the opening / closing body. Furthermore, the opening and closing mechanism is not limited to shutters; it can also be applied to the frames of sliding doors that open and close horizontally, the frames of their door pockets, and the mounting frames for water-stopping plates, etc.

[0116] <Summary> As described above, the above embodiment discloses the following invention. (1) An installation structure for installing components of an opening and closing device for opening and closing an opening on the building frame, wherein the building frame comprises a wooden base and a fire-resistant member covering the surface of the wooden base, the wooden base is covered by the fire-resistant member such that a recessed exposed portion is formed, exposing a part of the wooden base to the outside, and the recessed exposed portion is covered by a fire-resistant cover member fitted onto it, and the components are fastened to the wooden base together with the cover member by fasteners that can be screwed onto the wooden base while in contact with the cover member. (2) The opening and closing device comprises an opening and closing body that moves up and down along the opening, and a guide rail that guides the end of the opening and closing body in the width direction in the opening and closing direction, wherein the component is the guide rail, and the guide rail is fastened to the wooden base together with the cover member by the fastener, characterized in that the installation structure of the opening and closing device according to (1) above. (3) The installation structure for the opening and closing device described in (2) above, wherein the guide rail comprises a rail 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 body, and the base member is fastened and fixed to the wooden base body together with the cover member by the fastener. (4) The opening and closing device comprises an opening and closing body that moves up and down along the opening, a guide rail that guides the end of the opening and closing body in the width direction in the opening and closing direction, a winding shaft on which the opening and closing body is wound, and a pair of left and right pivot brackets that rotatably support the winding shaft, wherein the component is the pair of left and right pivot brackets, and the pair of left and right pivot brackets are fastened and fixed to the wooden base together with the cover member by the fastener, characterized in that the opening and closing device is as described in (1) above. (5) The installation structure for an opening and closing device according to any one of (1) to (4) above, characterized in that a fire-resistant sheet is provided at the boundary between the fire-resistant member and the cover member, which is formed when the cover member is fitted into the concave exposed portion, so as to cover the boundary. (6) The fire-resistant member is provided in a two-layer structure consisting of a first layer placed in contact with the wooden base and a second layer placed to cover the first layer, the concave exposed portion is composed of a first exposed portion formed by the arrangement of the first layer and a second exposed portion formed by the arrangement of the second layer, the exposed width of the first exposed portion in the width direction of the opening / closing body is smaller than the exposed width of the second exposed portion in the width direction of the opening / closing body, the cover member has a first cover member fitted to the first exposed portion and a second cover member fitted to the second exposed portion, the boundary between the first layer and the first cover member, which is formed by fitting the first cover member to the first exposed portion, and the boundary between the second layer and the second cover member, which is formed by fitting the second cover member to the second exposed portion, are each positioned offset in the width direction of the opening / closing body, as described in any of (1) to (4) above. (7) A method for constructing an installation structure for an opening and closing device as described in any of (1) to (4) above, comprising the steps of: covering the wooden base with the fire-resistant member so as to form the concave exposed portion that exposes a part of the wooden base to the outside; fitting the cover member into the concave exposed portion to cover the concave exposed portion; and fastening the component member to the wooden base together with the cover member using the fastener that can be screwed into the wooden base, while the component member is in contact with the cover member. [Explanation of symbols]

[0117] 1. Switching device 10 Opening / closing mechanism 20 Storage compartments 21 Reeling shaft 22. Support bracket (component) 30 Guide rail (component) 31 Rail body 32 Base member 40 Wooden base 40d exposed part 50 Fire-resistant material 51 First fire-resistant component 52 Second fire-resistant component 53 Third fire-resistant component 60 Cover component 61 First cover member 62 Second cover member 70 Wooden base 70c exposed part 80 Fire-resistant material 81. First fire-resistant component 82 Second fire-resistant component 83 Third Fire-Resistant Member 90 Cover component 91 First cover member 92 Second cover member 100 Fire-resistant sheet 110 Fire-resistant sheet M1 Fastener X Building structure

Claims

1. An installation structure for installing components of an opening and closing device that opens and closes an opening onto the building structure, The aforementioned building structure comprises a wooden base and a fire-resistant member covering the surface of the wooden base. The wooden base is covered by the fire-resistant member such that a recessed exposed portion is formed, exposing a part of the wooden base to the outside, and the recessed exposed portion is covered by fitting a fire-resistant cover member into it. The aforementioned component is fastened to the wooden base together with the cover member by fasteners that can be screwed into the wooden base, while in contact with the cover member. A distinctive installation structure.

2. The opening and closing device comprises an opening and closing body that moves up and down along the opening, and a guide rail that guides the end of the opening and closing body in the width direction in the opening and closing direction. The aforementioned component is the guide rail, The guide rail is fastened to the wooden base together with the cover member by the fastener. Installation structure for the opening and closing device according to feature 1.

3. The guide rail comprises a rail body that guides the end of the opening / closing body in the width direction in the opening / closing direction, and a separate base member connected to the rail body. The base member is fastened and secured to the wooden base together with the cover member by the fastener. The installation structure for the opening and closing device according to feature 2.

4. The opening and closing device comprises an opening and closing body that moves up and down along the opening, a guide rail that guides the end of the opening and closing body in the width direction in the opening and closing direction, a winding shaft on which the opening and closing body is wound, and a pair of left and right pivot brackets that rotatably support the winding shaft. The aforementioned component is the pair of left and right pivot brackets, which are fastened and secured to the wooden base together with the cover member by the fasteners. Installation structure for the opening and closing device according to feature 1.

5. At the boundary between the fire-resistant member and the cover member, where the boundary is formed by fitting the cover member into the concave exposed portion, a fire-resistant sheet is provided to cover this boundary. The installation structure for an opening and closing device according to any one of claims 1 to 4.

6. The fire-resistant member is provided with a two-layer structure consisting of a first layer that is in contact with the wooden base and a second layer that is positioned to cover the first layer. The aforementioned concave exposed portion is composed of a first exposed portion formed by the arrangement of the first layer and a second exposed portion formed by the arrangement of the second layer, and the exposed width of the first exposed portion in the width direction of the opening / closing body is smaller than the exposed width of the second exposed portion in the width direction of the opening / closing body. The cover member comprises a first cover member fitted to the first exposed portion and a second cover member fitted to the second exposed portion. The boundary between the first layer and the first cover member, which is formed when the first cover member is fitted to the first exposed portion, and the boundary between the second layer and the second cover member, which is formed when the second cover member is fitted to the second exposed portion, are each positioned so as to be offset in the width direction of the opening / closing body. The installation structure for an opening and closing device according to any one of claims 1 to 4.

7. A method for constructing the installation structure of an opening and closing device according to any one of claims 1 to 4, The process involves covering the wooden base with the fire-resistant member such that a recessed exposed portion is formed, exposing a part of the wooden base to the outside, The steps include fitting the cover member into the recessed exposed portion to cover the recessed exposed portion, The process includes the step of fastening the aforementioned component to the wooden base together with the cover member using the fastener that can be screwed into the wooden base, while the component is in contact with the cover member. A construction method characterized by the following features.

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