Guide rail installation structure

Abstract

To guard a guide rail from the heat or the flame of a fire.SOLUTION: A guide rail installation structure has a guide rail 40A, which is for guiding an opening / closing body 10 to the closing direction, fixed to a wooden skeleton X. At least a part of the guide rail 40A is covered with a fire-resistant member x2.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a guide rail installation structure in which a guide rail for guiding an opening / closing body in a closing direction is installed on a wooden frame. [Background technology]

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

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

[0004] Incidentally, in recent years, there are cases where a large building framework is constructed from wood and a large shutter device such as a heavy-duty shutter is installed on the wooden framework. In such an installation structure, if a fire were to break out and the guide rail were to be exposed to flames or heat, the heat could be transferred from the guide rail to the wooden structure, causing thermal deterioration of the wooden structure or even causing the guide rail to fall off. [Means for solving the problem]

[0005] In view of the above problems, one aspect of the present invention has the following configuration. In a guide rail installation structure in which a guide rail for guiding an opening / closing body in a closing direction is fixed to a wooden structure, at least a portion of the guide rail is covered with a fire-resistant member. Effect of the Invention

[0006] Since the present invention is configured as described above, it is possible to prevent the guide rail from being exposed to heat and flames caused by a fire or the like. [Brief description of the drawings]

[0007] [Figure 1] 1 is a front view showing an example of an opening and closing device to which a guide rail installation structure according to the present invention is applied; [Diagram 2] FIG. 2 is a longitudinal sectional view taken along line (II)-(II) in FIG. [Diagram 3] FIG. 2 is a cross-sectional view taken along line (III)-(III) in FIG. [Figure 4] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Diagram 5] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 6] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 7] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 8] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 9] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 10] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 11] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 12] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 13] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 14] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 15] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. [Figure 16] 4 is a cross-sectional view of a main portion showing another example of a guide rail installation structure according to the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Next, an embodiment of the present invention will be described in detail with reference to the drawings. In this specification, the term "width direction of the opening / closing body" refers to a direction that is approximately perpendicular to the opening / closing direction of the opening / closing body and is not the thickness direction of the opening / closing body. In addition, the term "outer side in the width direction of the opening / closing body" refers to the direction toward the outside of the opening / closing body along the width direction of the opening / closing body. For example, when the guide rail on the right side is used as a reference, the outer side in the width direction of the opening / closing body is the right side. In addition, the term "inner side in the width direction of the opening / closing body" refers to the direction toward the inside of the opening / closing body along the width direction of the opening / closing body. For example, when the guide rail on the right side is used as a reference, the inner side in the width direction of the opening / closing body is the left side.

[0009] <First embodiment> FIG. 1 shows an opening and closing device to which an example of a guide rail installation structure according to the present invention is applied. The opening and closing device 1 includes an opening and closing body 10 that performs a closing operation to partition a space, a storage section 20 that extends the opening and closing body 10 in a closing direction and stores it in an opening direction, a fixed base frame 30 that fixes the storage section 20 to a wooden structure X, and a guide rail 40A that guides the opening and closing body 10 in the closing direction and the opening direction. This opening and closing device 1 employs a guide rail installation structure A as a structure for fixing a guide rail 40A to a wooden skeleton X.

[0010] Wooden structure X is a large building whose main material is wood. This wooden structure X comprises a wooden base x1 and a fire-resistant member x2 that covers the wooden base x1 (see Figs. 2 and 3).

[0011] The wooden base x1 is a wooden building material that constitutes the basic framework of the wooden structure X, such as rectangular prism-shaped wooden pieces that constitute pillars and beams, or flat structural plywood that constitutes the walls. The wooden base x1 in the illustrated example is erected from the floor surface below the opening and closing device 1 to the ceiling part 2 above the opening and closing device 1.

[0012] The fire-resistant member x2 is a plate-shaped building material having fire resistance and heat insulation properties (e.g., gypsum board, calcium silicate board, etc.), and one or more pieces (two sheets in the illustrated example) are laminated on the surface of the wooden base x1.

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

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

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

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

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

[0018] The support base frame 25 is formed by connecting a plurality of long hard members (for example, various steel materials such as angle iron and channel iron). The support base frame 25 in the illustrated example is integrally formed with a horizontally long connecting portion 25a that connects the left and right pivot support brackets 22, 22 at their lower ends, and a support portion 25b that supports a substantially central portion in the width direction of the connecting portion 25a and is fastened to the fixed base frame 30 at the rear.

[0019] The fixed base frame 30 is configured as a generally rectangular frame in front view spanning substantially the entire width of the storage section 20 by connecting a plurality of long rigid members (square steel pipes in the illustrated example). A protrusion 31 that protrudes upward is provided on the center side in the width direction of the fixed base frame 30. The upper rear end side portion of the above-mentioned support section 25b is fastened to the protrusion 31. The fixed base frame 30 is immovably fixed to the wooden structure X by fasteners (not shown) (for example, screws, bolts, anchor members, etc.).

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

[0021] The guide rail 40A in the illustrated example is integrally equipped with a rail body 41 having a hollow L-shaped cross section that protrudes forward from the visible surface Xa of the wooden structure X and has its tip bent inward in the width direction of the opening / closing body (to the left in FIG. 3), a fastening bracket 42 for fastening this rail body 41 to the visible surface Xa of the wooden structure X, and an insulating member support part 43 for supporting an insulating member 45 within the rail body 41. The rail body 41, the fastening bracket 42, and the heat insulating member support portion 43 are each formed from a hard metal material (for example, steel, stainless steel, aluminum alloy, etc.).

[0022] The fastening bracket 42 has a generally concave cross section that is elongated in the vertical direction and has a plate-shaped portion 42a that contacts the visible surface Xa of the wooden structure X and protruding pieces 42b, 42b that protrude forward from both the left and right ends of the plate-shaped portion 42a. The fastening bracket 42 is fastened to the visible surface Xa of the wooden structure X by a fastening tool M1 that is inserted through the plate-shaped portion 42a.

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

[0024] The closed space within the support portion 41b is partitioned by the heat insulating member support portion 43 to form two air layers a1 and a2, one at the front and one at the rear. The heat insulating member support portion 43 is formed in a plate shape that is continuous in the vertical direction and is located rearward of the head m12 of the fastener M1. Both left and right ends are joined to the inner surface of the support portion 41b by, for example, welding. The heat insulating member support portion 43 functions both as a support member for stably supporting the rear side heat insulating portion 45a and as a reinforcing member for reinforcing the rail main body 41.

[0025] Of the front and rear spaces separated by the heat insulating member support portion 43, the front space adjacent to the wooden structure X is provided with a head m12 of the fastening device M1 that fastens the fastening bracket 42 to the wooden structure X, and a heat insulating member 45 that covers this head m12 from behind, and an air layer a2 is provided between the fastening device M2 and the heat insulating member 45.

[0026] The fastener M1 is a screw member (for example, a screw or a bolt) having a threaded portion m11 at its front end and a head portion m12 at its rear end, and a plurality of fasteners M1 are provided at intervals in the vertical direction. In the illustrated example, each fastener M1 has a screw portion m11 that penetrates the fastener bracket 42, and a head portion m12 that is engaged with the edge of the through hole. The screw portion m11 penetrates the fire-resistant members x2, x2 and is screwed into the wooden base x1.

[0027] The insulating member 45 is a fire-resistant insulating material made of a material with lower thermal conductivity than the guide rail 40A, and in the illustrated example, uses the same building material as the fire-resistant member x2 (e.g., gypsum board, calcium silicate board, etc.). Other examples of the insulating material 45 that can be used include fiber-based insulating materials such as glass wool, rock wool, cellulose fiber, and insulation boards, foamed plastic insulating materials such as urethane foam and expanded polyethylene foam, natural material insulating materials such as carbonized cork, and wood.

[0028] This heat insulating member 45 is fixed to the surface of the heat insulating member support part 43 facing the wooden skeleton X and to the inner wall surface of the rail main body 41. This fixing means may be adhesion, fitting, or fastening devices (for example, screws, bolts, rivets, etc.).

[0029] The insulating member 45 in the illustrated example has a rear side insulating portion 45a that is supported by the insulating member support portion 43 and is located rearward of the fastener M1, and a lateral side insulating portion 45b that protrudes forward from this rear side insulating portion 45a and is close to the side of the head m12 of the fastener M1.

[0030] The inner surface of the guide rail 40A in the width direction of the opening / closing body (the left side in FIG. 3) is covered with double fire-resistant members x2, x2. These fire-resistant members x2, x2 continuously cover the wooden base x1 to the support portion 41b of the rail body 41. The fire-resistant member x2 may have a single layer structure or a multi-layer structure of three or more layers.

[0031] The guide rail 40A having the above-mentioned configuration is also fixed to immovable portions at the upper and lower parts. More specifically, the lower end of guide rail 40A is fixed to a fixed portion on the lower side via bracket 47 (see FIG. 1). In the illustrated example, bracket 47 is an L-shaped angle member made of a rigid material, one side of which is fixed to guide rail 40A, and the other side of which is fixed to a fixed portion on the lower side, such as the floor surface, a door frame, or a bottom frame.

[0032] The upper end side of the guide rail 40A is inserted into the lintel 26 and fixed to the ceiling 2 or an immovable portion near the ceiling 2 (for example, the lintel 26, the fixed base frame 30, a beam-like member not shown, etc.).

[0033] Therefore, according to the guide rail installation structure A having the above configuration, the heat caused by a fire or the like that is received by the guide rail 40A can be reduced by the fire-resistant member x2. In other words, when the guide rail 40A receives heat from the inside in the width direction of the opening / closing body (the left side in FIG. 3), the transfer of the heat to the guide rail 40A can be reduced by the multi-layer fire-resistant members x2, x2 covering the guide rail 40A.

[0034] Furthermore, the heat received by the guide rail 40A can be prevented from being transmitted to the wooden base x1 by the fire-resistant members x2, x2 disposed between the guide rail 40A and the wooden base x1.

[0035] In addition, the air layers a1, a2 in the support portion 41b and the insulating member 45, etc., can prevent the heat received by the guide rail 40A from being transmitted to the head m12 of the fastening device M1 (see Figure 3), thereby preventing deterioration of the wooden base x1 due to the heat transmitted through the fastening device M1.

[0036] <Second embodiment> Next, an opening and closing device to which another example of the guide rail installation structure according to the present invention is applied will be described. In addition, since the guide rail installation structure described below is a modified version of the above-mentioned guide rail installation structure A, parts that have approximately the same functions as the above-mentioned guide rail installation structure A are given the same symbols, and duplicate detailed explanations will be omitted as appropriate.

[0037] In the guide rail installation structure B shown in FIG. 4, a wooden structure X is integrally formed by a wooden base x1, a fuel portion x3 connected to the wooden base x1 and protruding forward from the wooden base x1, and a fire-resistant member x2 covering the wooden base x1 and the fuel portion x3, and a guide rail 40B is attached to this wooden structure X (see FIG. 4).

[0038] The guide rail 40B is configured to be hollow and integrally includes a rail body 41 that guides the opening / closing body 10 in the up and down direction and a fastening bracket 42 that fastens the rail body 41 to the flame portion x3. Each member constituting this guide rail 40B is formed from a hard metal material (for example, steel, stainless steel, aluminum alloy, etc.).

[0039] The rail main body 41 is a long, continuous member in the vertical direction, and is integral with a guide portion 41a that surrounds the widthwise end of the opening / closing body 10 with a concave cross section and guides it in the vertical direction, and a support portion 41b that supports this guide portion 41a on the outside in the widthwise direction of the opening / closing body (the right side in Figure 3) and connects it to the fastening bracket 42.

[0040] The fastening bracket 42 has a generally concave cross section that is continuous in a long shape in the vertical direction, and has a plate-shaped portion 42a that contacts the fire-resistant member x2 on the front side of the burning portion x3, and protrusions 42b, 42b that protrude forward from both the left and right ends of the plate-shaped portion 42a. The fastening bracket 42 is immovably fixed to the fuel portion x3 by a fastening tool M1.

[0041] The support portion 41b of the rail main body 41 is overlapped with the protruding pieces 42b, 42b on both sides of the previously fixed fastening bracket 42, and is fixed by fastening devices M2 (for example, screws, bolts, etc.).

[0042] The fastener M1 is a screw member (for example, a screw) having a threaded portion m11 at its front end and a head portion m12 at its rear end, and a plurality of fasteners M1 are provided at intervals in the vertical direction. Each fastener M1 has a head m12 at its rear end engaged with the fastener bracket 42 of the guide rail 40B, and a screw portion m11 at its tip end passed through the fastener bracket 42 and the fire-resistant members x2, x2 and screwed into the burn portion x3. The head m12 is covered by a closed air space a1 inside the guide rail 40B. This air space a1 prevents heat from outside the guide rail 40B from being transmitted to the fastener M1. The fastener M1 for fastening the guide rail 40B and the fastener M3 for fastening the burner portion x3 are located at different heights so as not to interfere with each other. The guide rail 40B is also fixed to immovable portions at the upper and lower parts.

[0043] The outer surface of the guide rail 40B on the outer side in the width direction of the opening / closing body (the right side in FIG. 4) is covered with multi-layer fire-resistant members x2, x2. These fire-resistant members x2, x2 continuously cover the area from the burning fuel portion x3 to the guide rail 40B.

[0044] Therefore, according to the guide rail installation structure B shown in FIG. 4, similarly to the above-described embodiment, the transmission of heat from a fire or the like to the guide rail 40B can be reduced by the fire-resistant members x2, x2 covering the guide rail 40B. Furthermore, the heat of the guide rail 40B can be prevented from being transmitted to the fuel portion x3 by the fire-resistant members x2, x2 between the guide rail 40B and the fuel portion x3.

[0045] In addition, the air layer a1 covering the head m12 of the fastener M1 and the like can prevent heat from being transmitted from the outside of the guide rail 40B to the burn portion x3 via the fastener M1. Furthermore, if heat outside the guide rail 40B is transmitted to the fuel portion x3 and the fuel portion x3 is carbonized, the insulating effect of the carbonized layer can prevent further heat from being transmitted to the wooden base x1, thereby preventing thermal deterioration of the wooden base x1.

[0046] <Third embodiment> A guide rail installation structure C shown in FIG. 5 is the same as the guide rail installation structure B (see FIG. 4) except that the fire-resistant members x2, x2 between the fuel portion x3 and the wooden base x1 are omitted. According to this guide rail installation structure C, similarly to the above-mentioned guide rail installation structure B, the transmission of heat from a fire or the like to the guide rail 40C can be reduced by the fire-resistant members x2, x2 covering the guide rail 40C. Further, in substantially the same manner as the guide rail installation structure B, it is possible to prevent heat from being transferred to the fuel portion x3 and the wooden base x1.

[0047] <Fourth embodiment> The guide rail installation structure D shown in Figure 6 is the above-mentioned guide rail installation structure B (see Figure 4) in which the guide rail 40B is replaced with a guide rail 40D, and the connection portion of this guide rail 40D to the wooden structure X (in the illustrated example, the burning portion x3) is covered via an air layer a2.

[0048] The guide rail 40D integrally comprises a rail body 41 that guides the opening / closing body 10 in the vertical direction and a fastening bracket 42 for fastening the rail body 41 to the flame portion x3, and each of these parts is formed from a hard metal material (e.g., steel, stainless steel, aluminum alloy, etc.).

[0049] The rail body 41 of the guide rail 40D has a guide portion 41a for inserting the width direction end of the opening / closing body 10 and guiding it in the closing direction. The guide portion 41a in the illustrated example is formed of a flat plate-shaped member adjacent to both sides of the opening / closing body 10 on the width direction end side.

[0050] The fastening bracket 42 in the guide rail 40D is an angle-shaped member with an L-shaped cross section that is continued in the vertical direction, and one end of the bracket 42 is fastened to the rail main body 41 by a fastening device M2, and the other end of the bracket 42 is fastened to a burn portion x3 covered with fire-resistant members x2, x2 by a fastening device M1. The fastening bracket 42 is located in an air space a2 sealed by the surrounding fire-resistant member x2 and the guide rail 40D (see FIG. 6).

[0051] In the guide rail 40D having the above-described configuration, the portion other than the guide portion 41a is covered by the air layer a2 and the fire-resistant member x2. In more detail, most of the guide rail 40D, except for the end portion of the guide portion 41a on the inner side in the width direction of the opening / closing body, is covered with the fire-resistant material x2, and in particular, almost the entire fastening bracket 42 and the connection portion to the burn portion x3, such as the head m12, are surrounded by the fire-resistant material x2 and covered with a sealed air layer a2.

[0052] The guide portion 41a has an open end portion, into which the opening / closing body 10 is inserted, penetrating the fire-resistant member x2 and exposed to the outside.

[0053] The guide rail 40D having the above-mentioned configuration is provided to extend in the vertical direction, and its upper end side and lower end side are each connected to a fixed portion.

[0054] In the figure, reference symbol x5 denotes a support member that supports some of the fire-resistant members x2 from the inside, and is formed, for example, from a long rectangular columnar piece of wood that is continuous in the vertical direction.

[0055] Therefore, according to the guide rail installation structure D shown in FIG. 6, the heat transfer from a fire or the like to the guide rail 40D can be reduced by the fire-resistant members x2, x2 and the air layer a2 covering the guide rail 40D. In addition, the transfer of heat from the guide rail 40D to the fuel portion x3 and the wooden base x1 can be reduced by the fire-resistant members x2, x2 between the guide rail 40D and the fuel portion x3, and the fire-resistant members x2, x2 between the fuel portion x3 and the wooden base x1, etc.

[0056] <Fifth embodiment> The guide rail installation structure E shown in Figure 7 is the same as the guide rail installation structure B (see Figure 4) except that the guide rail 40B is replaced with a guide rail 40E, and the fastening portion of this guide rail 40E is disposed in an air layer a2 covered by a fire-resistant member x2.

[0057] The guide rail 40E integrally comprises a rail body 41 and a fastening bracket 42 for fastening the rail body 41 to the flame portion x3, and each of these parts is formed from a hard metal material (e.g., steel, stainless steel, aluminum alloy, etc.).

[0058] The rail body 41 of the guide rail 40E has a concave cross section that surrounds the widthwise end of the opening / closing body 10 and is continuous in the up-down direction. The fastening bracket 42 in the guide rail 40E is an angle-shaped member with an L-shaped cross section that is continued in the vertical direction, and one end of the bracket 42 is fastened to the rail main body 41 by a fastening device M2, and the other end of the bracket 42 is fastened to a burnt portion x3 covered with fire-resistant members x2, x2 by a fastening device M1.

[0059] The fastening bracket 42 and the head m12 of the fastening tool M1 are covered by a closed air space a2, and this air space a2 is further enclosed in a hermetic manner by the guide rail 40E and the fire-resistant member x2, etc. (see FIG. 7). The air layer a2 and the surrounding fire-resistant member x2 and the like prevent heat from outside the guide rail 40E from being transmitted to the fastening bracket 42 and the head m12.

[0060] The guide rail 40E having the above-mentioned configuration is provided to extend in the vertical direction, and its upper end side and lower end side are each connected to a fixed portion.

[0061] Therefore, according to the guide rail installation structure E shown in FIG. 7, the heat from a fire or the like can be reduced by the fire-resistant member x2, the air layer a2, and the like from being transmitted to the guide rail 40E and the connection portion of the guide rail 40E.

[0062] Sixth embodiment A guide rail installation structure F shown in FIG. 8 is obtained by omitting the burnt portion x3 from the above-mentioned guide rail installation structure E (see FIG. 7) and by replacing the guide rail 40E with a guide rail 40F.

[0063] The guide rail 40F integrally comprises a rail body 41 and a fastening bracket 42 for fastening the rail body 41 to a wooden structure X, and each of these parts is formed from a hard metal material (e.g., steel, stainless steel, aluminum alloy, etc.).

[0064] The fastening bracket 42 in the guide rail 40F is an angle-shaped member with an L-shaped cross section that is continued in the vertical direction, and one end of the bracket 42 is fastened to the rail main body 41 by fastening device M2, and the other end of the bracket 42 is fastened to a wooden base x1 covered with fire-resistant members x2, x2 by fastening device M1.

[0065] In the guide rail 40F, the fastening bracket 42 and the head m12 of the fastening tool M1 are covered by a closed air layer a2, and this air layer a2 is further enclosed in a hermetic manner by the guide rail 40F and the fire-resistant member x2, etc. The air layer a2 and the surrounding fire-resistant material x2 and the like prevent heat from outside the guide rail 40F from being transmitted to the fastening bracket 42 and the head m12.

[0066] The guide rail 40F having the above-mentioned configuration is provided to extend in the vertical direction, and its upper end side and lower end side are each connected to a fixed portion.

[0067] Therefore, according to the guide rail installation structure F shown in FIG. 8, the heat from a fire or the like can be reduced by the fire-resistant member x2, the air layer a2, and the like from being transmitted to the guide rail 40F and the connection portion of the guide rail 40F.

[0068] Seventh embodiment A guide rail installation structure F shown in FIG. 9 is obtained by replacing the guide rail 40D in the guide rail installation structure D (see FIG. 6) with a guide rail 40G.

[0069] The guide rail 40G integrally comprises a rail body 41 that guides the opening / closing body 10 in the vertical direction and a fastening bracket 42 for fastening the rail body 41 to the burner portion x3, and each of these parts is formed from a hard metal material (e.g., steel, stainless steel, aluminum alloy, etc.).

[0070] The rail body 41 of the guide rail 40G has an opening end for vertically guiding the widthwise end of the opening / closing body 10 formed in a hemmed shape.

[0071] The fastening bracket 42 in the guide rail 40G has the same configuration as that in the guide rail 40D. This fastening bracket 42 is located between the surrounding fire-resistant member x2 and the sealed air layer a2 (see FIG. 9).

[0072] The guide rail 40G having the above-mentioned configuration is provided to extend in the vertical direction, and its upper and lower ends are each connected to immovable portions.

[0073] Therefore, according to the guide rail installation structure G shown in FIG. 9, the heat from a fire or the like can be reduced by the fire-resistant member x2, the air layer a2, and the like from being transmitted to the guide rail 40G and the connection portion of the guide rail 40G.

[0074] <Eighth embodiment> In the guide rail installation structure H shown in FIG. 10, a guide rail 40H is fixed to a wooden fuel portion x4.

[0075] The guide rail 40H is configured by replacing the fastening bracket 42 with a burn-in portion x4 of the guide rail 40A (see FIG. 3), eliminating the rear side insulation portion 45a and the side side insulation portion 45b, and making the insulation member support portion 43 function simply as a reinforcing member.

[0076] The burnt portion x4 has a rectangular cross section that fits into the inner surface of the rail body 41 and extends vertically along the visible surface Xa of the wooden structure X in a long shape. The burning portion x4 is made of wood. The burning portion x4 is fastened to the wooden structure X by a fastener M1 that is inserted through the burning portion x4.

[0077] The rail body 41 of this guide rail 40H is overlapped on both side ends of the previously attached fuel portion x4, and is integrally joined to the fuel portion x4 by fasteners M2 (e.g., screws, bolts, rivets, etc.) (see FIG. 10).

[0078] The burner portion x4 functions as a fastening bracket for fastening the rail main body 41 to the wooden structure X, as an insulating member for protecting the rear end side of the fastening device M1 (more specifically, the rear end side of the screw portion m11 and the part forward of the head m12) from heat, and as a burner member for preventing flames from spreading to the wooden base x1.

[0079] In the guide rail installation structure H, the outer surfaces on one side and the other side in the width direction of the opening / closing body are covered with fire-resistant members x2, x2, respectively. The guide rail 40H having the above-mentioned structure is extended in the vertical direction, and its upper and lower ends are each connected to immovable portions.

[0080] Therefore, according to the guide rail installation structure H shown in FIG. 10, the heat caused by a fire or the like that is received by the guide rail 40H can be reduced by the fire-resistant member x2. Furthermore, even if the guide rail 40H is subjected to heat from a fire or the like, the heat can be prevented from being transmitted to the wooden base x1 by the fire-resistant members x2, x2 between the fire-resistant members x4 and the wooden base x1.

[0081] <Ninth embodiment> 11, a guide rail installation structure I is provided with a guide rail 40I on the visible surface Xb of the frame opening. The guide rail 40I constitutes an opening / closing device (not shown) in a manner substantially similar to that of the above embodiment, and surrounds the width direction end of the opening / closing body 10 extended from the upper storage section 20 in a concave shape to guide it in the vertical direction.

[0082] The guide rail 40I is integrally equipped with a rail body 41 that protrudes inward in the width direction of the opening / closing body (to the left in Figure 11) from the visible surface Xb of the wooden structure X, and a fastening bracket 42 for fastening this rail body 41 to the visible surface Xb. A heat insulating member 46 having lower thermal conductivity than the guide rail 40I is provided inside the guide rail 40I so as to cover the rear end side (specifically, the head m12) of the fastener M1.

[0083] The rail body 41 of the guide rail 40I has, integrally, a guide portion 41a that guides the opening / closing body 10 in the vertical direction and a support portion 41b that protrudes inward in the width direction of the opening / closing body from the visible surface Xb of the wooden structure X and supports the guide portion 41a, and is continuous in a long shape extending in the vertical direction.

[0084] The support portion 41b of the guide rail 40I forms a closed air layer a3 between the guide portion 41a and the wooden structure X. A flat heat insulating member support portion 43 is provided in the support portion 41b near the guide portion 41a so as to support the heat insulating member 46. The heat insulating member support portion 43 also has the function of reinforcing the rail main body 41 as a whole.

[0085] The rail body 41 of the guide rail 40I is joined integrally to the previously attached fastening bracket 42 by overlapping the inner surface of the support portion 41b with the fastening device M2 (for example, a screw, a bolt, a rivet, or the like).

[0086] The heat insulating member 46 is a fire-resistant fiber member made of a fiber-based heat insulating material (for example, glass wool, rock wool, cellulose fiber, insulation board, etc.). The heat insulating member 46 is disposed with a concave cross section, with an air layer a3 between it and the head m12 of the fastener M1 (see FIG. 5). As another example, the insulating member 46 can also be an insulating material other than a fiber-based insulating material (for example, gypsum board, calcium silicate board, the foamed plastic insulating material, the natural material insulating material, wood, etc.).

[0087] The front and rear outer surfaces of the guide rail 40I are covered with a single-layer or multi-layer (two-layer in the illustrated example) fire-resistant member x2. The upper and lower ends of the guide rail 40I are fixed to immovable portions.

[0088] 11, the heat of fire received by the guide rail 40I can be reduced by the fire-resistant member x2 covering the guide rail 40I. When the guide rail 40I is subjected to heat from a fire, the heat is prevented from being transmitted to the fastener M1 by the heat insulating member 46 and the air layer a3, etc.

[0089] <Tenth embodiment> In the guide rail installation structure J shown in Fig. 12, a guide rail 40J is installed on the visible surface Xb of the opening of the structure via a burner portion x3. The guide rail 40J surrounds the width direction end of the opening / closing body 10 extended from the upper storage section 20 in a concave shape to guide it in the vertical direction.

[0090] A heat insulating member 46 having lower thermal conductivity than the guide rail 40J is provided inside the guide rail 40J so as to cover the head m12 of the fastener M1.

[0091] The guide rail 40J having the above-mentioned structure is substantially covered with multi-layer fire-resistant members x2, x2 except for the inner end face in the opening / closing body width direction (the left end face in FIG. 10). The lower and upper ends of this guide rail 40J are fixed to immovable portions on the lower and upper sides, respectively.

[0092] The outer surfaces of the guide rail 40J and the front and rear of the fuel portion x3 (on both sides in the thickness direction of the opening / closing body) are covered with multi-layer fire-resistant members x2, x2.

[0093] Therefore, according to the guide rail installation structure J shown in FIG. 12, the heat received by the guide rail 40J and the fuel portion x3 due to a fire can be reduced by the front and rear fire-resistant members x2, x2. Even if the guide rail 40J is heated, the heat can be prevented from being transmitted to the fuel portion x3 by the heat insulating member 46. Furthermore, if the fuel portion x3 is carbonized by the heat during a fire, the carbonized layer can reduce the heat transmission to the wooden base x1.

[0094] <Eleventh embodiment> 13 shows a guide rail installation structure K in which the fire-resistant members x2, x2 between the fuel portion x3 and the wooden base x1 are omitted from the guide rail installation structure J. A guide rail 40K in this guide rail installation structure K has the same configuration as the guide rail 40J.

[0095] According to the guide rail installation structure K shown in FIG. 13, like the guide rail installation structure J, it is possible to reduce the heat caused by a fire from being received by the guide rail 40K and the heat from being transmitted to the wooden base x1. <Twelfth embodiment> In the guide rail installation structure L shown in Figure 14, the wooden structure X is composed of a wooden base x1, a fire-resistant member x2, and a burning portion x3, etc., and the guide rail 40L is connected to the fire-resistant member x2 that covers the burning portion x3, and further, the connection portion of the guide rail 40L is covered by the fire-resistant member x2 via an air layer a2.

[0096] The guide rail 40L is integrally provided with a rail body 41 that guides the opening / closing body 10 in the up-down direction, and a fastening bracket 42 that fastens the rail body 41 to the flame portion x3.

[0097] The rail body 41 of the guide rail 40L is made of a plurality of metal members and has a horizontal H-shaped cross section as shown in Fig. 14. The guide portions 41a of the rail body 41 are formed of flat plate-shaped members adjacent to the front and back surfaces of the opening / closing body 10.

[0098] The fastening bracket 42 of the guide rail 40L is a member having a U-shape in cross section with its opening facing inward in the width direction of the opening / closing body (leftward in FIG. 14), and is fastened to the burner portion x3 by fastening tool M1. The rail body 41 fits inside the fastening bracket 42 that was previously fixed, and is fixed by fastening tool M2.

[0099] Between the rail body 41 and the fastening bracket 42, a closed air space a1 is provided so as to cover the head m12 of the fastening tool M1.

[0100] In addition, air layers a2, a2 ​​covered with fire-resistant members x2 are provided on both outer sides of the rail body 41 in the thickness direction of the opening / closing body. The portion of the rail body 41 that is attached to the burning fuel portion x3 is disposed in the air layer a2.

[0101] The fire-resistant member x2 around the air layer a2 exposes the tip side of the guide portion 41a and covers the other portions. In addition, the symbol x5 in the figure denotes a support member that supports some of the fire-resistant members x2 from the inside, and is formed, for example, from a long rectangular column-shaped piece of wood that is continuous in the vertical direction.

[0102] The lower and upper ends of the guide rail 40L are fixed to immovable portions on the lower and upper sides, respectively.

[0103] Therefore, according to the guide rail installation structure L shown in FIG. 14, the transmission of heat from a fire to the guide rail 40L and its fastening portion can be reduced by the fire-resistant material x2 around the guide rail 40L and the air layers a2, a2, etc. Even if heat during a fire is transmitted to the guide rail 40L, the air layer a1 can prevent the heat from being transmitted to the fastener M1. Furthermore, even if the fuel portion x3 is carbonized, the carbonized layer can prevent the heat from being transmitted to the wooden base x1.

[0104] <Thirteenth embodiment> A guide rail installation structure N shown in FIG. 15 is obtained by replacing the guide rail 40L in the guide rail installation structure L (see FIG. 14) with a guide rail 40N.

[0105] The guide rail 40N is integrally formed with a rail body 41 that guides the opening / closing body 10 in the up and down direction and a fastening bracket 42 that fastens the rail body 41 to the flame portion x3.

[0106] The rail body 41 of the guide rail 40N has a guide portion 41a and a support portion 41b, and is configured to have a generally horizontal H-shaped cross section as shown in Fig. 15. The end of the opening of the guide portion 41a is formed in a hemmed shape.

[0107] The fastening bracket 42 of the guide rail 40N is a member having a U-shape in cross section with its opening facing inward in the width direction of the opening / closing body (leftward in FIG. 15), and is fastened to the burner portion x3 by fastening tool M1. The rail body 41 fits inside the fastening bracket 42 that was previously fixed, and is fixed by fastening tool M2.

[0108] In the guide rail 40N, the fastening portion (more specifically, the fastening bracket 42 and the like) for the fuel portion x3 has an outer surface covered by an air layer a2 surrounded by the fire-resistant member x2.

[0109] The lower and upper ends of the guide rail 40N are fixed to immovable portions on the lower and upper sides, respectively.

[0110] Therefore, according to the guide rail installation structure N shown in FIG. 15, the transmission of heat from a fire to the guide rail 40N and its fastening portion can be reduced by the fire-resistant material x2 around the guide rail 40N and the air layers a2, a2, etc. Even if heat during a fire is transmitted to the guide rail 40N, the air layer a1 can prevent the heat from being transmitted to the fastener M1. Furthermore, even if the fuel portion x3 is carbonized, the carbonized layer can prevent the heat from being transmitted to the wooden base x1.

[0111] <Fourteenth embodiment> In the guide rail installation structure P shown in FIG. 16, a hollow guide rail 40P is connected to a fuel portion x4 therein.

[0112] The guide rail 40P includes a rail body 41 that guides the opening / closing body 10 in the up-down direction. The rail body 41 is integral with a guide portion 41a that surrounds the widthwise end of the opening / closing body 10 in a concave cross section and guides it in the up-down direction, and a support portion 41b that supports the guide portion 41a on the outer side in the widthwise direction of the opening / closing body (the right side in FIG. 16).

[0113] The support portion 41b of the guide rail 40P is formed with a cross section that faces the wooden structure X in a concave shape, and the combustion portion x4 is fitted into the inside of the cross section.

[0114] The burnable portion x4 is fixed to the wooden base x1 by a fastener M3. This burnable portion x4 functions as a fastening bracket for fastening the rail main body 41 to the wooden structure X, as an insulating member for protecting the rear end side of the screw portion m31 of the fastening device M3 from heat, and as a burnable member for preventing the flame from spreading to the wooden base x1.

[0115] The support portion 41b of the guide rail 40P is overlapped with the burnt portion x4 that has been fixed in the above manner. Then, this overlapping portion is joined by the fastener M2. Within the support portion 41b, a closed air layer a1 is formed around the threaded portion m31 of the fastener M3. This air layer a1 prevents heat from outside the guide rail 40P from being transmitted to the head portion m32.

[0116] The upper and lower ends of the guide rail 40P are each connected to an immovable portion.

[0117] Further, in the guide rail 40P, most of the outer surface except for the tip end portion on the inner side in the width direction of the opening / closing body (the left end side in FIG. 16) is covered with multiple layers of fire-resistant members x2, x2.

[0118] Therefore, according to the guide rail 40P shown in FIG. 16, the heat of a fire can be reduced by the fire-resistant members x2, x2 on the outer surface of the guide rail 40P. Even if heat during a fire is transmitted to the guide rail 40P, the air layer a1 can prevent the heat from being transmitted to the fastener M3. Furthermore, even if the wooden fuel part x4 is carbonized, the carbonized layer can prevent the heat from being transmitted to the wooden base x1.

[0119] 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.

[0120] <Summary> As described above, the above embodiments disclose the following inventions. (1) A guide rail installation structure in which a guide rail for guiding an opening / closing body in a closing direction is fixed to a wooden structure, characterized in that at least a portion of the guide rail is covered with a fire-resistant material (see Figures 1 to 16). (2) The guide rail installation structure according to (1) (see Figs. 1 to 16), characterized in that the fire-resistant member covers the wooden framework and the guide rail. (3) The guide rail installation structure according to (1) or (2) (see Figs. 1 to 16), wherein the fire-resistant member has a portion that is sandwiched between the wooden framework and the guide rail. (4) The guide rail installation structure described in any one of (1) to (3) is characterized in that the wooden structure is integrally provided with a wooden base and a fuel burner portion connected to the wooden base and protruding from the wooden base, the guide rail is fixed to the fuel burner portion, and the fire-resistant member covers the fuel burner portion and the guide rail (see Figures 4 to 7, 9, 10, and 12 to 16). (5) A guide rail installation structure described in any one of (1) to (4) (see Figures 6 to 9 and 15), characterized in that the fire-resistant member covers the connection portion of the guide rail to the wooden structure via an air layer. (6) The guide rail installation structure described in (5) is characterized in that the connection portion includes a fastening bracket that connects the guide rail to the wooden structure, and the fire-resistant member covers the fastening bracket via an air layer (see Figures 6 to 9 and 15). (7) A guide rail installation structure described in any one of (1) to (6) (Figures 6, 9, 12 to 16), characterized in that the guide rail has a guide portion into which the widthwise end of the opening / closing body is inserted and guided in the closing direction, and the fire-resistant member covers parts of the guide rail other than the guide portion. [Explanation of symbols]

[0121] 10. Opening and closing body 20: Storage area 40A~40L, 40N, 40P: Guide rail 41: Rail body 41a: Guide section 41b: Support part 42: Fastening bracket A~L, N, P: Guide rail installation structure M1,M2,M3: Fastening tool X: Wooden frame a1, a2: air layer x1: Wooden base x2: Fireproof material x3, x4: Burning part

Claims

1. In a guide rail installation structure in which a guide rail for guiding an opening / closing body in a closing direction is fixed to a wooden structure, A guide rail installation structure, characterized in that at least a portion of the guide rail is covered with a fire-resistant material.

2. 2. The guide rail installation structure according to claim 1, wherein the fire-resistant member covers the wooden structure and the guide rail.

3. 2. The guide rail installation structure according to claim 1, wherein the fire-resistant member has a portion that is sandwiched between the wooden structure and the guide rail.

4. The guide rail installation structure described in claim 1, characterized in that the wooden structure integrally comprises a wooden base and a fire-stove portion connected to the wooden base and protruding from the wooden base, the guide rail is fixed to the fire-stove portion, and the fire-resistant member covers the fire-stove portion and the guide rail.

5. 2. The guide rail installation structure according to claim 1, wherein the fire-resistant member covers a connection portion of the guide rail to the wooden structure via an air layer.

6. The guide rail installation structure described in claim 5, characterized in that the connection portion includes a fastening bracket that connects the guide rail to the wooden structure, and the fire-resistant member covers the fastening bracket via an air layer.

7. The guide rail has a guide portion into which a width direction end portion of the opening / closing body is inserted and into which the opening / closing body is guided in a closing direction, 7. The guide rail installation structure according to claim 1, wherein the fire-resistant member covers a portion of the guide rail other than the guide portion.

Images