Storage unit installation structure

Abstract

To provide a storage unit installation structure capable of improving the strength of a fixing part on a wooden skeleton.SOLUTION: In a storage unit installation structure for fixing a storage unit 20 for storing an opening and closing body 10 to a wooden skeleton X, the storage unit 20 includes: a winding shaft 21 for winding and unwinding the storage part 20; a winding shaft case 23 that covers the winding shaft 21 and the opening and closing body 10 wound on the winding shaft 21 in the width direction; and a suspension reinforcement 25 in which the lower end side thereof receives the winding shaft case 23 at the center in the width direction and the upper end is connected to the wooden skeleton X.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a storage unit installation structure in which a storage unit for storing an opening / closing body is supported on a wooden framework. [Background technology]

[0002] A typical shutter device comprises an opening / closing body that operates to close the space, a guide rail that guides the opening / closing body in the vertical direction, and a storage section (shutter box) that stores the opening / closing body above it. Incidentally, in recent years, there are cases where a large building skeleton is constructed from wood, and a large shutter device such as a heavy shutter is installed on the wooden skeleton (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-031930 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned conventional shutter device, the storage section is relatively heavy and long in the width direction, so that the portion of the storage section near the center in the width direction may bend downward due to its own weight. Therefore, it is proposed to fix the central part of the storage unit to a fixed location, but because it is heavy, some ingenuity is required to ensure that the attachment part to the wooden structure is strong enough. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention has the following configuration. A storage unit installation structure in which a storage unit for storing an opening / closing body is fixed to a wooden structure, the storage unit comprising: a winding shaft for winding up and unwinding the opening / closing body; a winding shaft case for covering the winding shaft and the opening / closing body wound around the winding shaft across the width; and a hanging reinforcement section whose lower end side receives the winding shaft case near the center in the width direction and whose upper end side is connected to the wooden structure. Effect of the Invention

[0006] Since the present invention is configured as described above, it is possible to improve the strength of the fastening portion for the wooden structure near the center of the width of the storage section and suppress deflection of the storage section. [Brief description of the drawings]

[0007]

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[0008] Next, an embodiment of the present invention will be described in detail with reference to the drawings.

[0009] <First embodiment> FIG. 1 shows an opening and closing device to which an example of a storage section installation structure according to the present invention is applied. The opening / closing device 1 includes an opening / closing body 10 that performs a closing operation so as to partition a space, a storage section 20 that advances the opening / closing body 10 in the closing direction and stores it in the opening direction, and a guide rail 40 that guides the opening / closing body 10 in the closing direction and the opening direction.

[0010] This opening / closing device 1 has a storage section 20 fixed to a wall surface Xa of a wooden structure X above an opening so that the opening of the wooden structure X can be opened and closed by an opening / closing body 10, and a storage section installation structure A is applied to part of the fixing structure.

[0011] Wooden structure X is a large building whose main material is wood. This wooden structure X is integrally provided with a wooden base x1 and a fire-resistant member x2 that covers the wooden base x1 (see FIG. 2).

[0012] More specifically, the wooden structure X forms a wall surface Xa that continues in the width direction (left and right direction in FIG. 1) above the opening that is opened and closed by the opening / closing body 10 and behind the storage section 20 (to the right according to FIG. 2). This wall surface Xa is, for example, a hanging wall that is installed so as to hang down from the ceiling or a substantially vertical surface of a beam or the like. A wall-side fastening portion x3 is fixed to the wall surface Xa so as to protrude toward the front side.

[0013] The wooden base x1 is made of wooden building materials (eg, structural plywood or other wood materials) and constitutes the basic framework of the wooden structure X.

[0014] The fire-resistant member x2 is a plate-shaped building material having fire resistance and heat insulation properties (e.g., gypsum board, calcium silicate board, etc.). This fire-resistant member x2 is layered on the surface of the wooden base x1 in one or more pieces (two sheets in the illustrated example) to prevent external heat and flames from being transmitted to the wooden base x1 inside.

[0015] The wall-side fastening portion x3 is integrally formed in a substantially rectangular column shape by a core material x31 extending in the vertical direction and a fire-resistant member x32 covering the core material x31 in multiple layers (two layers in the illustrated example).

[0016] The core material x31 is a wooden block, and in the illustrated example, is configured in the shape of a rectangular column that is long in the vertical direction. Other examples of the material of the core material x31 include metal, ceramic, and flame-retardant resin. The core material x31 is fixed to the wooden structure X by fasteners x33 (for example, screws or the like) in a direction intersecting the vertical direction (approximately horizontal in the illustrated example). The fastener x33 has its head engaged with the core material x31, and is screwed through the core material x31 into the wooden base x1.

[0017] The fire-resistant member x32 is a plate-shaped building material made of the same material as the above-mentioned fire-resistant member x2. The fire-resistant member x32 covers the head of the fastener x33 and the upper surface, front surface, and both side surfaces of the core material x31. The lower surface of the core material x31 is in contact with the surface of the fire-resistant member x2 that covers the upper end surface of the reinforcing frame 30 (see Figs. 2 and 5).

[0018] 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, the slats being formed by bending a horizontally elongated, generally rectangular metal plate. This opening / closing body 10 is sometimes called a slat shutter curtain. Other examples of this opening / closing body 10 include a structure made of a flexible sheet such as a fire-resistant 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.

[0019] The storage section 20 comprises 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 that is the driving source that drives and rotates the winding shaft 21, and a hanging reinforcement section 25 that supports, suspends, and reinforces the pivot brackets 22, 22 and the winding shaft case 23 from below (see Figures 1 and 2).

[0020] 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.

[0021] Two journal support brackets 22 are provided spaced apart in the width direction so as to be located on both sides of the winding shaft 21. These two journal support brackets 22, 22 are each fastened to the reinforcing frame 30 on the rear side.

[0022] The reinforcing frame 30 is formed by connecting a plurality of long rigid members (square steel pipes in the illustrated example) to have a generally rectangular frame shape when viewed from the front, spanning generally the entire length of the storage section 20 in the width direction. This reinforcing frame 30 is fixed to the wooden skeleton X before the storage section 20, and reinforces the wall surface Xa of the wooden skeleton X.

[0023] The reinforcing frame 30 attached to the wooden structure X supports the reinforcing frame 30 from the rear side and receives the wall-side fastening portion x3 from below.

[0024] The reinforcing frame 30 illustrated in Figure 3 is integrally constructed of two horizontal frame members 32, 35 spaced apart in the vertical direction, connecting members 33, 33 that connect these horizontal frame members 32, 35 at both ends in the width direction, and a connecting member 34 that connects these horizontal frame members 32, 35 at the center in the width direction. The upper and lower end faces and both side faces of this reinforcing frame 30 are covered with a multi-layer fire-resistant member x2 so as to prevent exposure to the outside (see Figs. 2 and 3).

[0025] Each member constituting the reinforcing frame 30 (in the illustrated example, the horizontal frame members 32, 35, the connecting members 33, 34, etc.) is made of a hard metal material (e.g., iron, aluminum alloy, stainless steel, etc.). These members are integrally connected by appropriate connecting means (e.g., welding, screwing, riveting, fitting, etc.).

[0026] The reinforcing frame 30 having the above-mentioned configuration is fastened to the wooden structure X by fasteners 36, 36 which are inserted into the horizontal frame members 32, 35, and is immovably fixed to the wall surface Xa (see FIG. 2). The reinforcing frame 30 supports the storage section 20 from the rear side, and receives the lower ends of the wall-side fastening portions x3 from below.

[0027] The winding shaft case 23 is formed in an elongated shape with a generally U-shaped or arc-shaped vertical cross section continuing in the opening / closing width direction. The winding shaft case 23 covers 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), and its lower end side is supported by the receiving member 25a of the hanging reinforcement part 25.

[0028] 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).

[0029] The hanging reinforcement portion 25 is formed by connecting a plurality of long rigid members (for example, various steel materials such as angle iron, channel iron, and C-shaped steel). The lower end side of the hanging reinforcement portion 25 receives the center of the width direction of the winding shaft case 23 via a receiving member 25a. The upper end side of the hanging reinforcement portion 25 is connected to the wall surface Xa of the wooden structure X on the rear side of the storage portion 20 via a fastening bracket 25b5 and a wall-side fastening portion x3, etc.

[0030] More specifically, as shown in FIG. 2, the hanging reinforcement portion 25 comprises a horizontally elongated receiving member 25a that receives the left and right journal brackets 22, 22 and the winding shaft case 23 from below, a lower piece 25b1 that is connected to the receiving member 25a on the lower side of the winding shaft case 23 and extends toward the front, a front piece 25b2 that is connected to the lower piece 25b1 on the front side of the winding shaft case 23 and extends upward, and an upper end side of the front piece 25b2 that is connected to the upper end side of the front piece 25b2. The two upper pieces 25b3 are extended rearward from the upper side of the winding shaft case 23, reinforcing pieces 25b4 reinforcing the intersections of these pieces (in the illustrated example, the intersections of the lower piece 25b1 and the front piece 25b2, and the intersections of the front piece 25b2 and the upper piece 25b3, etc.), and a fastening bracket 25b5 connecting the two upper pieces 25b3, 25b3 at their rear ends are integrally formed by a joining means such as welding, and have a laterally concave shape in a side view.

[0031] The receiving member 25a is a C-beam shaped member with an opening facing upward, and the lower end side of the winding shaft case 23 fits into the opening of the receiving member 25a (see FIG. 2). The lower piece 25b1, the front piece 25b2, the upper piece 25b3, the reinforcing piece 25b4 and the fastening bracket 25b5 are each an angle-shaped member. Each of the receiving member 25a, the lower piece 25b1, the front piece 25b2, the upper piece 25b3, the reinforcing piece 25b4 and the fastening bracket 25b5 may be a member having a cross-sectional shape other than that shown in the figure.

[0032] The hanging reinforcement portion 25 configured as described above surrounds the winding shaft 21 and the winding shaft case 23 from the front side in a generally concave shape, and receives the winding shaft case 23 by the receiving member 25a on the lower end side.

[0033] The hanging reinforcement portion 25 has an upper rear end attachment bracket 25b5 attached to a wall surface Xa of the wooden structure X via a wall-side attachment portion x3. More specifically, the fastening bracket 25b5 is overlapped with the side surface of the wall-side fastening portion x3, and is fastened to the side surface of the wall-side fastening portion x3 by a plurality of fasteners 51, 52 that are inserted into this overlapping portion.

[0034] The fasteners 51, 52 are screws made of the same material (for example, steel or stainless steel). The threaded portions are inserted through the fastening bracket 25b5 and the fire-resistant member x32, and the heads of the fasteners 51, 52 are engaged with the fastening bracket 25b5 and screwed into the core material x31 (see FIG. 4). Of these two fasteners 51, 52, the upper fastener 51 is thicker and stronger than the lower fastener 52.

[0035] The upper fastening tool 51 is inserted through the fastening bracket 25b5 so as to intersect with the vertical direction above the upper piece 25b3, and fastens the fastening bracket 25b5 to the wall-side fastening portion x3. The lower fastening tool 52 is inserted through the fastening bracket 25b5 between the upper and lower upper pieces 25b3, 25b3 so as to intersect with the vertical direction (substantially horizontal in the illustrated example), and fastens the fastening bracket 25b5 to the wall-side fastening portion x3.

[0036] According to these configurations, the fastening strength of the hanging reinforcement portion 25 to the wall-side fastening portion x3 can be favorably maintained. That is, the weight of the storage section 20 acts as a shear force on each of the fasteners 51, 52. Therefore, compared to a case in which the weight acts on each fastener in the removal direction, the strength and durability of the fastening points by the fasteners 51, 52 can be maintained high.

[0037] Furthermore, a moment acts on the hanging reinforcement portion 25 due to the weight of the storage portion 20, causing the tip end side of the upper piece 25b3 to rotate downward with the fastening bracket 25b5 side as a fulcrum. However, according to the above configuration, the strength of the upper side of each of the multiple fastening devices 51, 52 is greater than that of the lower side, so that the fastening points between the fastening bracket 25b5 and the wall side fastening portion x3 can be effectively prevented from being damaged due to the moment.

[0038] A lintel portion 26 is provided below the hanging reinforcement portion 25 so as to surround the opening and closing path of the opening and closing body 10 at the height position of the ceiling portion 2. This lintel portion 26 is fixed to an immovable portion near the ceiling portion 2 (for example, the receiving member 25a, the reinforcing frame 30, or other immovable members on the ceiling side, etc.).

[0039] The guide rails 40 are long members that continue in the vertical direction on both ends of the opening / closing body 10 in the width direction. The guide rails 40 are disposed on both sides of the opening that is opened and closed by the opening / closing body 10 so as to guide the widthwise ends of the opening / closing body 10 in the opening / closing direction. The guide rail 40 is formed from a hard metal material (such as steel, stainless steel, or an aluminum alloy) and is fixed to the wooden structure X by fasteners (such as screws, bolts, or rivets) not shown.

[0040] In addition, the lower end of the guide rail 40 is fixed to a fixed part on the lower side (e.g., the floor surface, the bottom frame, the door sill, etc.) via a bracket 47 (see Figure 1), and the upper end of the guide rail 40 is fixed to a fixed part on the upper side (e.g., the lintel portion 26, the ceiling portion 2, the steel material on the upper side, the beam material, etc.) via a bracket (not shown).

[0041] <Action and effect> According to the storage unit installation structure A having the above-mentioned configuration, the fastening strength of the storage unit 20 to the wooden structure X can be improved, and in particular, the central portion of the storage unit 20 in the width direction can be fixed to the wooden structure X with high strength, thereby preventing the central portion of the winding shaft case 23 from bending downward.

[0042] According to the above embodiment, each fastener 51, 52 is screwed into the core material x31 substantially horizontally. However, as an example other than the illustrated example, each fastener 51, 52 may be inclined with respect to the horizontal direction. In this case, it is preferable in terms of fastening strength to incline the tip side of the fastener 51, 52 downward.

[0043] According to the above embodiment, as a specific means for making upper fastener 51 stronger than lower fastener 52, fasteners 51 and 52 made of the same material have different thicknesses. However, as another example, fasteners 51 and 52 may be made the same in thickness and fastener 51 may be made of a material stronger than fastener 52 (for example, fastener 51 may be made of stainless steel and fastener 52 may be made of steel).

[0044] According to the above embodiment, a single hanging reinforcement part 25 of the above configuration is provided at approximately the center position in the width direction of the storage section 20, but as another example, it is also possible to provide the hanging reinforcement part 25 at a position biased to one side in the width direction, or to provide multiple hanging reinforcement parts 25 in the width direction.

[0045] In addition, according to the above embodiment, the rear ends of the left and right pivot brackets 22, 22 are fastened to the wooden structure X via the reinforcing frame. However, as another example, it is also possible to omit the reinforcing frame and fasten the rear ends of the pivot brackets 22, 22 directly to the wooden structure X using the fasteners 36 or the like.

[0046] <Second embodiment> Next, another example of the storage section installation structure according to the present invention will be described. In addition, since the storage unit installation structure described below is a modified version of the storage unit installation structure A described above, the modified parts will be mainly described in detail, and the same symbols will be used for parts that function in the same way as the storage unit installation structure A described above.

[0047] 7(a) and 7(b), a storage unit installation structure B is configured such that the core material x31 of the wall-side fastening portion x3 in the storage unit installation structure A is in direct contact with the wooden base x1 of the wooden structure X. This storage unit installation structure B is useful for installing the storage unit 20 at a stage before the wooden base x1 is covered with the fire-resistant member x2 during the manufacturing stage of the wooden structure X.

[0048] In the storage section installation structure B, the core material x31 is fastened by a plurality of fasteners x33 to predetermined positions on the surface of the wooden base x1 before it is covered with the fire-resistant member x2.

[0049] The wooden base x1 with the core material x31 attached thereto is covered in multiple layers with the fire-resistant material x2. The surface of the core material x31 is covered in a multi-layer manner with fire-resistant members x32 made of the same material as the fire-resistant members x2.

[0050] The fastening bracket 25b5 of the hanging reinforcement part 25 is overlapped on the side surface of the wall-side fastening part x3 configured as described above, in the same manner as in the storage part installation structure A. The fastening bracket 25b5 is fastened to the wall-side fastening part x3 by the fastening tools 51 and 52 which are inserted substantially horizontally.

[0051] Therefore, according to the storage unit installation structure B having the above-mentioned configuration, similarly to the storage unit installation structure A, the fastening strength of the storage unit 20 to the wooden structure X can be well maintained, and the central portion of the winding shaft case 23 can be prevented from bending downward.

[0052] <Third embodiment> The storage section installation structure C, the main parts of which are shown in Figures 8 to 10, is configured by omitting the wall side fastening portion x3 in the above-mentioned storage section installation structure A, replacing the reinforcing frame 30 with a reinforcing frame 30C, and replacing the hanging reinforcement portion 25 with a hanging reinforcement portion 25', and fastening the upper rear end side of this hanging reinforcement portion 25' to the reinforcing frame 30C.

[0053] The reinforcing frame 30C is attached to a wall surface Xa of the wooden structure X to reinforce the wall surface Xa and to support the storage section 20 from the rear side. In contrast to the reinforcing frame 30, the reinforcing frame 30C has an upwardly protruding portion 37 integrally formed at approximately the center of the upper horizontal frame member 32 (see FIG. 9).

[0054] The protrusions 37 are formed in a columnar shape from the same metal material as the other members constituting the reinforcing frame 30C, and are fixed to the upper end surface of the horizontal frame material 32 by a fixing means such as welding. The upper rear end side of the hanging reinforcement part 25' is connected to the front side surface of this protrusion 37. This connection part and the outer surface of the protrusion 37 are covered with a multi-layered fire-resistant member 37a. The fire-resistant member 37a is a member similar to the fire-resistant member x2.

[0055] The hanging reinforcement portion 25' replaces the fastening bracket 25b5 with a fastening bracket 25b5', and this fastening bracket 25b5' is connected to the protruding portion 37 of the reinforcing frame 30C.

[0056] The fastening bracket 25b5' is formed of an angle-shaped steel material or the like, similar to the fastening bracket 25b5. This fastening bracket 25b5' is fastened to the protruding portion 37 by a plurality of fasteners 25b6 (two in the illustrated example) arranged vertically. In the illustrated example, the fastening bracket 25b5' is fastened to the front side of the protrusion 37. However, as another example, the fastening bracket 25b5' may be fastened to the left or right side surface of the protrusion 37.

[0057] The fastening device 25b6 may be a bolt that penetrates the peripheral wall of the protrusion 37 and is fastened to a nut inside the protrusion 37, a bolt that screws into a female threaded hole provided in the peripheral wall of the protrusion 37, a rivet that penetrates the peripheral wall of the protrusion 37, or the like.

[0058] Therefore, according to the storage unit installation structure C shown in Figures 8 to 10, similarly to the various storage unit installation structures described above, the fastening strength of the storage unit 20 to the wooden structure X can be well maintained and the central portion of the winding shaft case 23 can be prevented from bending downward. Moreover, the protrusions 37 for fastening the hanging reinforcement parts 25' can be installed simultaneously with the installation of the reinforcing frame 30C on the wooden skeleton X, and this workability is excellent.

[0059] <Fourth embodiment> A storage section installation structure D shown in Figs. 11 to 13 is obtained by omitting the wall-side fastening portion x3 from the storage section installation structure A and replacing the hanging reinforcement portion 25 with a hanging reinforcement portion 25D.

[0060] The lower end of the hanging reinforcement portion 25D receives the center of the winding shaft case 23 in the width direction, and the upper end of the hanging reinforcement portion 25D is connected to the top portion Xb of the wooden structure X above the storage portion 20.

[0061] In more detail, this suspension reinforcement section 25D comprises a receiving member 25a that receives the left and right support brackets 22, 22 and the winding shaft case 23 from below, a lower piece 25b1 that is connected to the receiving member 25a on the lower side of the winding shaft case 23 and extends toward the front, a front piece 25b2 that is connected to the lower piece 25b1 on the front side of the winding shaft case and extends upward, and an attachment bracket 25b7 connected to the upper end of the front piece 25b2, and the attachment bracket 25b7 is attached to the top section Xb above the storage section 20.

[0062] The top portion Xb is a surface extending substantially horizontally from the top side of the wall surface Xa toward the front, and is configured by covering the surface of a wooden base x1 with multiple layers of fire-resistant members x2.

[0063] The fastening bracket 25b7 is a steel material (for example, an angle material) that extends in the front-rear direction, and is fastened to the top portion Xb by a plurality of fasteners 25b8 (two in the illustrated example) that are aligned in the front-rear direction.

[0064] Each fastening device 25b8 is a screw made of a hard metal material (e.g., steel or stainless steel), with the threaded portion at the tip end penetrating the fastening bracket 25b7 and the fire-resistant material x2 and screwed into the wooden base x1, and the head of the fastening device 25b8 is engaged with the surface of the fastening bracket 25b7.

[0065] In the storage unit installation structure D, the reinforcing frame 30 is the same member as that in the storage unit installation structure A. This reinforcing frame 30 does not receive the wall-side fastening portion x3 or the like (see Figs. 12 and 13).

[0066] Therefore, according to the storage unit installation structure D shown in Figures 11 to 13, similarly to the various storage unit installation structures described above, the fastening strength of the storage unit 20 to the wooden structure X can be well maintained and the central portion of the winding shaft case 23 can be prevented from bending downward.

[0067] <Fifth embodiment> The storage unit installation structure E shown in Figures 14 and 15 is the storage unit installation structure D configured as described above, in which a top-side fastening portion x4 that protrudes downward from the top portion Xb of the wooden structure X is provided on the upper side of the storage unit 20, and the hanging reinforcement portion 25D is replaced with a hanging reinforcement portion 25E.

[0068] The top fastening portion x4 is made up of a wooden core material x41 extending in the front-to-back direction and a fire-resistant material x42 covering this core material x41 in multiple layers (two layers in the illustrated example), and is formed in a long shape extending in the front-to-back direction along the top portion Xb.

[0069] The core material x41 and the fire-resistant member x42 may be made of the same materials as the core material x31 and the fire-resistant member x32 described above. The core material x41 is fixed to the top portion Xb by a plurality of fasteners 36 arranged in the front-rear direction. The surface of the core material x41 is covered with a fire-resistant member x42 so as to prevent it from coming into contact with the outside air.

[0070] The lower end of the hanging reinforcement portion 25E is supported near the center of the width of the winding shaft case 23, and the upper end is overlapped on the side of the top-side fastening portion x4 and fastened to the top-side fastening portion x4 by a plurality of fastening devices 25b9 inserted through this overlapping portion.

[0071] In more detail, this suspension reinforcement portion 25E comprises a receiving member 25a that supports the left and right support brackets 22, 22 and the winding shaft case 23 from below, a lower piece 25b1 that is connected to the receiving member 25a on the lower side of the winding shaft case 23 and extends toward the front, a front piece 25b2 that is connected to the lower piece 25b1 on the front side of the winding shaft case and extends upward, and a fastening bracket 25b8 connected to the upper end of the front piece 25b2.

[0072] The fastening bracket 25b8 is a steel material (for example, an angle bar) extending in the front-to-rear direction, and is fastened to the side surface extending in the front-to-rear direction at the top fastening portion x4 by multiple (two in the illustrated example) fasteners 25b9 lined up in the front-to-rear direction.

[0073] Each fastener 25b9 is a screw made of a hard metal material (e.g., steel, stainless steel, etc.). The fastener 25b9 is used in a direction intersecting the vertical direction (approximately horizontal in the illustrated example), and the threaded portion on the tip side of the fastener 25b9 penetrates the fastener bracket 25b8 and the fire-resistant member x42, and is screwed into the core material x41, and the head of the fastener 25b9 is engaged with the surface of the fastener bracket 25b8. According to the fasteners 25b9, the strength and durability of the fastening points can be kept high, compared to a case in which weight is applied to each fastener in the removal direction.

[0074] Therefore, according to the storage unit installation structure E shown in Figures 14 to 15, similarly to the various storage unit installation structures described above, the fastening strength of the storage unit 20 to the wooden structure X can be well maintained and the central portion of the winding shaft case 23 can be prevented from bending downward.

[0075] Sixth embodiment A storage section installation structure F, the main part of which is shown in FIG. 16, is configured such that in the storage section installation structure E configured as described above, two front side pieces 25b2 are provided so as to be fastened to both the left and right side surfaces of the top fastening portion x4.

[0076] Although not shown in the drawings, the lower ends of the two front pieces 25b2 are connected to the two lower pieces 25b1, respectively. The rear ends of these two lower pieces 25b1 are connected to the receiving member 25a.

[0077] Therefore, according to the storage unit installation structure F, the main part of which is shown in Figure 16, similarly to the various storage unit installation structures described above, the fastening strength of the storage unit 20 to the wooden structure X can be well maintained and the central portion of the winding shaft case 23 can be prevented from bending downward.

[0078] 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.

[0079] <Summary> As described above, the above embodiments disclose the following inventions. (1) A storage unit installation structure in which a storage unit for storing an opening / closing body is fixed to a wooden structure, the storage unit comprising: a winding shaft for winding up and unwinding the opening / closing body; a winding shaft case for covering the winding shaft and the opening / closing body wound around the winding shaft across the width; and a hanging reinforcement section whose lower end receives the center of the winding shaft case in the width direction and whose upper end is connected to the wooden structure (see Figures 1 to 16). (2) A storage unit installation structure as described in (1) (see FIG. 2), characterized in that the upper end side of the hanging reinforcement part is connected to the wooden structure on the rear side of the storage unit. (3) The storage section is provided with left and right support brackets that support the winding shaft on both sides, and the suspension reinforcement section is provided with a support member that receives the left and right support brackets and the winding shaft case from below (see Figures 1, 2, 8, 11, 12 and 14). (4) the hanging reinforcement portion includes a lower piece connected to the receiving member below the winding shaft case and extending toward the front side, a front piece connected to the lower piece at the front side of the winding shaft case and extending upward, and an upper piece connected to an upper end side of the front piece and extending rearward above the winding shaft case, A storage unit installation structure as described in (3) (see Figures 2 and 8) characterized in that the upper piece is connected to the wall surface of the wooden structure on the rear side of the storage unit. (5) The storage section installation structure described in (4) (see Figs. 2, 8, etc.) is characterized in that the upper pieces are provided in a plurality of pieces aligned in the vertical direction. (6) A storage unit installation structure described in any one of (1) to (5) (see Figures 1, 2, etc.), characterized in that a wall-side fastening portion is provided on the rear side of the storage unit, protruding from the wall surface of the wooden structure toward the front, and the upper end side of the hanging reinforcement portion is overlapped with the side surface of the wall-side fastening portion and fastened to the wall-side fastening portion by a fastening device inserted into this overlapping portion. (7) The storage section installation structure described in (6) is characterized in that the fasteners are provided in two in the vertical direction, and of these two fasteners, the upper fastener is configured to be stronger than the lower fastener (see Figures 2, 4, etc.). (8) The storage section installation structure according to (6) or (7) (see Figures 1, 2, 4 to 6, etc.) is characterized in that the wall-side fastening portion is integrally formed of a core material and a fire-resistant member covering the core material. (9) A storage unit installation structure described in any one of (6) to (8) (see Figure 2), characterized in that a reinforcing frame is provided on the rear side of the storage unit to support the storage unit and to be fastened to a wall surface of the wooden structure to reinforce the wall surface, and this reinforcing frame receives the wall-side fastening portion from below. (10) A storage unit installation structure described in any one of (1) to (5) (see Figures 8 to 10), characterized in that a reinforcing frame is provided on the rear side of the storage unit to support the storage unit and to be attached to a wall surface of the wooden structure to reinforce the wall surface, the reinforcing frame having an integral protrusion that protrudes upward toward the center in the width direction, and the upper end side of the hanging reinforcement part is connected to the protrusion. [Explanation of symbols]

[0080] 1: Switchgear 10: Opening and closing body 20: Storage area 25,25',25D,25E: Hanging reinforcement part 25a: Receiving member 25b1: Lower piece 25b2: Front side 25b3: Upper piece 25b4: Reinforcement piece 25b5: Fastening bracket 30: Reinforcement frame 37:Protrusion 40: Guide rail 36, 51, 52: Fasteners A to F: Storage unit installation structure X: Wooden frame Xa: Wall x1: Wooden base x2: Fireproof material x3: Wall side attached part x31:Core material x32: Fireproof materials

Claims

1. In a storage unit installation structure in which a storage unit for storing an opening / closing body is fixed to a wooden structure, A storage unit installation structure characterized in that the storage unit comprises a winding shaft that winds up and unwinds the opening and closing body, a winding shaft case that covers the winding shaft and the opening and closing body wound around the winding shaft in the width direction, and a hanging reinforcement section whose lower end side receives the center of the winding shaft case in the width direction and whose upper end side is connected to the wooden structure.

2. 2. The storage unit installation structure according to claim 1, wherein an upper end side of the hanging reinforcement part is connected to the wooden structure on the rear side of the storage unit.

3. The storage section includes left and right support brackets that support the winding shaft on both sides thereof, 2. The storage section installation structure according to claim 1, wherein the suspension reinforcement portion includes a receiving member that receives the left and right shaft support brackets and the winding shaft case from below.

4. the hanging reinforcement portion includes a lower piece connected to the receiving member below the winding shaft case and extending toward the front side, a front piece connected to the lower piece at the front side of the winding shaft case and extending upward, and an upper piece connected to an upper end side of the front piece and extending rearward above the winding shaft case, 4. The storage unit installation structure according to claim 3, wherein the upper piece is connected to a wall surface of the wooden structure at a rear side of the storage unit.

5. 5. The storage section installation structure according to claim 4, wherein the upper piece is provided in a plurality of pieces aligned in the vertical direction.

6. A wall-side fastening portion protruding from the wall surface of the wooden structure toward the front side is provided on the rear side of the storage portion, A storage section installation structure as described in claim 1, characterized in that the upper end side of the hanging reinforcement portion is overlapped with the side surface of the wall side fastening portion and is fastened to the wall side fastening portion by a fastener inserted through this overlapping portion.

7. The storage section installation structure according to claim 6, characterized in that the fasteners are provided in two in the vertical direction, and of these two fasteners, the upper fastener is configured to be stronger than the lower fastener.

8. 7. The storage section installation structure according to claim 6, wherein the wall-side fastening portion is integrally formed of a core material and a fire-resistant member covering the core material.

9. A storage unit installation structure as described in claim 6, characterized in that a reinforcing frame is provided on the rear side of the storage unit to support the storage unit and to be attached to the wall surface of the wooden structure to reinforce the wall surface, and this reinforcing frame supports the wall side attachment portion from below.

10. A reinforcing frame is provided on the rear side of the storage section to support the storage section and to be fastened to a wall surface of the wooden structure to reinforce the wall surface, The reinforcing frame has a protruding portion integrally protruding upward toward the center in the width direction, 6. The storage section installation structure according to claim 1, wherein an upper end side of the hanging reinforcement portion is connected to the protrusion portion.

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