Bearing means fixing structure

Abstract

To provide a fixing structure of bearing means capable of enhancing installation property of the bearing means.SOLUTION: A fixing structure of bearing means fixes the bearing means rotatably supporting a winding shaft 40 for opening and closing a closing body 30 opening and closing an opening provided at a skeleton of a building to a wooden support member 2d with an external surface covered with a support side fireproof covering material 73 among members configuring the skeleton, and it comprises a substrate member 80 provided between the bearing means and the support side fireproof covering material 73. The bearing means is fitted to the substrate member 80, and the bearing means is fixed to the support member 2d by a support side fastener 91 inserted into the support member 2d so as to penetrate the substrate member 80 and the support side fireproof covering material 73.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a fixing structure for a bearing means. [Background technology]

[0002] Conventionally, one technique for fixing a support bracket that constitutes a shutter device installed at an opening in a building and that supports both the left and right ends of a winding drum that winds up a shutter curtain to a main body has been disclosed, in which an angle bar attached to the support bracket is brought into direct contact with the main body and the angle bar is fixed to the main body via a bolt (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-206815 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, there has been an increasing need to install shutter devices in wooden buildings with a specified fire resistance. However, when the above-mentioned conventional technology is used to fasten a support bracket to a wooden component of such a wooden building whose outer surface is covered with a fire-resistant covering, the fire-resistant covering comes into direct contact with the angle iron, which can easily damage the fire-resistant covering, for example, by directly receiving bearing pressure from the angle iron. Therefore, there is room for improvement in terms of the ease of installation of bearing means such as a support bracket.

[0005] The present invention has been made to solve the problems in the prior art described above, and has an object to provide a fixing structure for a bearing means that makes it possible to improve the ease of installation of the bearing means. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the object, the fixing structure for a bearing means according to claim 1 is a fixing structure for fixing a bearing means, which rotatably supports a winding shaft for opening and closing an opening / closing body that opens and closes an opening provided in the skeleton of a building, to a wooden support member whose outer surface is covered with a fire-resistant covering material among members that constitute the skeleton, the fixing structure comprising a base member that is provided between the bearing means and the fire-resistant covering material, the base member to which the bearing means is attached, and the bearing means is fixed to the support member by a fixing device that is inserted into the support member so as to penetrate the base member and the fire-resistant covering material The device further includes a suppression means for suppressing the heat of a fire from being conducted to the fixing device in the event of a fire occurring around the opening, and the suppression means is arranged to cover the outer surface of the base member.

[0007] The fixing structure of the bearing means according to claim 2 is the fixing structure of the bearing means according to claim 1, The suppression means is provided so as to cover the exposed surface of the outer surface of the base member.

[0008] The fixing structure of the bearing means according to claim 3 is the fixing structure of the bearing means according to claim 1 or 2, The base member is constructed by combining a plurality of frame materials each having an accommodation space, and the fixing tool is provided so that the head portion of the fixing tool is accommodated within the accommodation space.

[0009] The fixing structure of the bearing means according to claim 4 comprises: Any one of claims 1 to 3 In the fixing structure of the bearing means described above, the restraining means is provided on the base member so that the head portion of the fixing tool and / or the portion in the vicinity thereof is not exposed to the outside.

[0010] The fixing structure for a bearing means described in claim 5 is the fixing structure for a bearing means described in any one of claims 1 to 4, and is provided with a reinforcing means for supporting the base member and thereby reducing the load acting on the fixing device. [Effects of the Invention]

[0011] According to the fixing structure for the bearing means described in claim 1, the bearing means is fixed to the support member by a fixing device that is inserted into the support member so as to penetrate the base member and the fire-resistant covering material, and is a base member that is provided between the bearing means and the fire-resistant covering material.Therefore, compared to when the bearing means is fixed to the support member without using a base member, the bearing means can be firmly fixed to the support member while suppressing the occurrence of damage to the fire-resistant covering material (for example, the occurrence of cracks in the fire-resistant covering material), and the installability of the bearing means can be improved. In addition, when a fire breaks out around the opening, a suppression means is provided to suppress the heat of the fire from being conducted to the fixing device, thereby suppressing the heat of the fire from being conducted to the fixing device and preventing the support member from falling off due to the heat of the fire being conducted to the support member.

[0012] Claim 3 According to the fixing structure of the bearing means described above, the base member is constructed by combining multiple frame materials each having an accommodation space, and the fixing device is arranged so that the head portion of the fixing device is accommodated within the accommodation space, thereby preventing the fixing device from being exposed to the outside, and reducing the transfer of heat from a fire occurring around the opening to the fixing device while maintaining the design around the base member.

[0013] Claim 4 According to the fixing structure of the bearing means described in The suppression means is provided on the base member so that the head portion of the fixing device and / or its surrounding area is not exposed to the outside, so that the head portion of the fixing device and / or its surrounding area can be prevented from being exposed to the outside, and the heat of the fire can be suppressed from being conducted to the fixing device.

[0014] Claim 5 According to the fixing structure of the bearing means described in By supporting the base member, a reinforcing means is provided to reduce the load acting on the fixing device, and the load acting on the fixing device due to, for example, the weight of the opening / closing body and the winding shaft can be reduced. This prevents the fixing device from being pulled out of the support member, and improves the stability of the installation of the base member. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a front view of an opening and closing device according to an embodiment of the present invention; [Figure 2] FIG. 2 is a rear view of the opening and closing device, and is an enlarged view of the periphery of a storage section (partially omitted and partially cross-sectional). [Figure 3] 3 is a cross-sectional view taken along the line AA in FIG. 2 (partially omitted). [Figure 4] 3 is a cross-sectional view taken along the line BB in FIG. 2 (partially omitted). DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, embodiments of the fixing structure for bearing means according to the present invention will be described in detail with reference to the accompanying drawings. First, [I] the basic concept of the embodiment will be explained, then [II] specific contents of the embodiment will be explained, and finally, [III] modifications to the embodiment will be explained. However, the present invention is not limited to the embodiment.

[0018] [I] Basic Concept of the Embodiment First, the basic concept of the embodiment will be described. The embodiment generally relates to a fixing structure for fixing a bearing means for rotatably supporting a winding shaft for moving an opening / closing body that opens and closes an opening provided in the skeleton of a building to a wooden support member whose outer surface is covered with a fire-resistant covering material among the members that make up the skeleton.

[0019] Here, the specific structure and type of "building" are arbitrary, but the concept includes, for example, public facilities, commercial facilities, detached houses, and collective housing such as apartments and condominiums.

[0020] Furthermore, an "opening" is an opening formed in a part of the building frame (for example, a wall material, a floor material, a ceiling material, etc.) for installing an entrance or a window.

[0021] Furthermore, the term "opening / closing body" is a concept that includes shutter curtains for all types of shutter devices (for example, heavy shutters, lightweight shutters, etc.). The opening and closing directions of an opening / closing device equipped with this opening / closing body include, for example, up and down, left and right, and front and back. The drive method of the opening / closing device is arbitrary, and examples of such include a "manual opening / closing device" and an "electric opening / closing device." More specifically, such concepts include a "manual opening / closing device" (so-called manual fire shutter) and an "electric opening / closing device" (so-called electric fire shutter) that can be lowered by its own weight based on a signal from a fire detector or an operating device.

[0022] Furthermore, the "open / closed state of the opening / closing body" is a concept that includes, for example, a "fully closed state," a "fully open state," and a "half-open state." Of these, the "fully closed state" is a state in which the opening is fully closed by the opening / closing body, and in the embodiment, the position of the opening / closing body in the fully closed state is referred to as the "fully closed position." Furthermore, the "fully open state" is a state in which the opening is fully opened by the opening / closing body, and in the embodiment, the position of the opening / closing body in the fully open state is referred to as the "fully open position." Furthermore, the "half-open state" is a state in which the opening / closing body is positioned between the fully closed position and the fully open position.

[0023] Furthermore, the specific structure and type of the "members constituting the framework" are arbitrary, but the concept includes, for example, wall materials, pillar materials, beam materials, floor materials, ceiling materials, etc. Furthermore, the specific structure and type of the "wooden support member" are arbitrary, but the concept includes, for example, wooden beam materials, wooden wall materials, wooden pillar materials, etc.

[0024] In the following embodiments, we will explain the case where the opening and closing device is a vertically opening and closing type, electrically operated heavy-duty shutter (specifically, an electrically operated fire shutter) that is installed in an opening in an interior wall material that divides rooms inside a building such as a public facility (e.g., a city hall).

[0025] [II] Specific details of the embodiment Next, specific details of the embodiment will be described.

[0026] (composition) First, the configuration of an opening and closing device to which the fixing structure of the bearing means according to the embodiment is applied will be described.

[0027] In the following description, the X direction in FIG. 1 is referred to as the left-right direction of the opening and closing device (the -X direction is the left direction of the opening and closing device, and the +X direction is the right direction of the opening and closing device), the Y direction in FIG. 3 is referred to as the front-to-back direction of the opening and closing device (the +Y direction is the front direction of the opening and closing device (toward the outside of the room) and the -Y direction is the rear direction of the opening and closing device (toward the inside of the room)), and the Z direction in FIG. 1 is referred to as the up-down direction of the opening and closing device (the +Z direction is the up direction of the opening and closing device, and the -Z direction is the down direction of the opening and closing device).

[0028] 1 and 2, the opening and closing device 1 generally includes a storage section 10, a guide rail 20, an opening and closing body 30, a winding shaft 40, an opening and closing machine 60, an operating device (not shown), and a control device (not shown). However, unless otherwise specified, the configuration of the opening and closing device 1 is the same as that of the conventional device, and therefore description thereof will be omitted.

[0029] The method of attaching (or connecting) the various components that make up the opening and closing device 1 to each other is arbitrary, but for example, a method is used in which the attachment side component is attached (or connected) to the attachment side component via an attachment hole (for example, a rivet hole, a screw hole, a screw hole, etc.) formed in the attachment side component or the component to which it is attached using a fastener (for example, a rivet, an attachment screw (for example, an anchor screw, etc.), a screw, etc.), welding, an adhesive, double-sided tape, etc.

[0030] As for the connection of the devices constituting this switchgear 1, specifically, the control device is electrically connected to each of the switchgear 60 and the operating device via wiring (not shown), which allows communication or power supply between the control device and the switchgear 60 and the operating device directly or indirectly.

[0031] (Configuration - Storage section) The storage unit 10 is a storage means for storing the opening-closing body 30. This storage unit 10 is configured using, for example, a ceiling-mounted storage case (or may be an exposed-mounted storage case), and specifically, is formed of a hollow steel body. As shown in FIGS. 1 to 4 , the storage unit 10 is installed above the upper end of an opening 3 provided in a building frame 2 (specifically, a wooden interior wall material 2a). (In FIG. 1, the storage unit 10 is installed between a wooden ceiling material 2b and a wooden floor material 2c (hereinafter referred to as the "upper floor material 2c") located above the ceiling material 2b.) A winding shaft 40 is also stored inside the storage unit 10, and when the opening-closing body 30 is wound up by the winding shaft 40, at least a portion of the opening-closing body 30 is also stored inside the storage unit 10.

[0032] 2 and 3, the storage section 10 includes a drive-side bearing plate 11, a drive-side mounting portion 12, and a drive-side mounting portion 13. 12, a driven-side bearing plate 13, a driven-side mounting portion 14, and a case plate 15.

[0033] Here, the specific configuration of the ceiling material 2b is arbitrary, but in this embodiment, it is configured with a known ceiling decorative panel. However, without being limited to this, for example, it may be configured by stacking multiple fire-retardant members 71a (as an example, two stacks) described below.

[0034] Furthermore, the specific configuration of the upper floor material 2c is arbitrary, but in this embodiment, the upper and lower surfaces of the upper floor material 2c are each provided with a floor-side fire-resistant covering material 72. Specifically, as shown in Fig. 2, the floor-side fire-resistant covering material 72 is made up of multiple layers (two layers in Fig. 2) of fire-stopping members 71a that can suppress combustion of the upper floor material 2c, and is arranged so as to cover almost the entire upper and lower surfaces of the upper floor material 2c, and is fixed to the upper floor material 2c with fixings, adhesive, or the like.

[0035] Furthermore, the material of each fire-retardant member 71a is optional, and although in the embodiment it is formed from gypsum board, it is not limited to this and may be formed from, for example, gypsum plaster, calcium silicate board, glass wool material, urethane material, or a combination of these (the same applies to the materials of the other fire-retardant members 71a).

[0036] Furthermore, the thickness of each fire-retardant member 71a is arbitrary, but in this embodiment, it is set to a thickness according to the fire resistance performance of the ceiling material 2b, specifically, it is set to a thickness according to the performance of the fire-resistant structure (performance required to prevent the support member 2d from falling off and the fire from spreading due to the fire until the fire is extinguished) or the quasi-fire-resistant structure (performance required to suppress the spread of the fire). However, it is not limited to this, and for example, it may be set to a thickness thicker than the thickness according to the performance of the fire-resistant structure or the quasi-fire-resistant structure (note that the same applies to the thickness of the other fire-retardant members 71a).

[0037] (Configuration - Storage section - Drive side bearing plate, Drive side mounting section) The drive side bearing plate 11 is a plate material for covering the left end of the storage space of the storage section 10, and as shown in Figures 2 and 3, it is arranged approximately vertically so as to cover the left end of the storage space, and is connected to the drive side mounting section 12 by a fixing device or the like.

[0038] The drive-side mounting portion 12 is used to mount the drive-side bearing plate 11 to the support member 2d via a base member 80, which will be described later. This drive-side mounting portion 12 is made up of, for example, a combination of multiple known steel plates (one example being an L-shaped metal bracket and a base member that connects the L-shaped metal bracket and the base member 80), and is provided between the drive-side bearing plate 11 and the base member 80, as shown in FIG. 3. The above-mentioned "drive-side bearing plate 11" and "drive-side mounting portion 12" together correspond to the "bearing means" in the claims.

[0039] Here, the "support member 2d" refers to a wooden member of the components constituting the skeleton 2, the outer surface of which is covered with a fire-resistant covering material 73 (hereinafter referred to as the "support-side fire-resistant covering material 73"). In the embodiment, this support member 2d is described as a wooden beam attached to the upper floor member 2c, having a substantially rectangular cross section along the YZ plane, and the outer surface of which is covered with the support-side fire-resistant covering material 73. However, the present invention is not limited to this, and may be, for example, a member other than a beam (for example, a wall material, a pillar material, or the like).

[0040] Furthermore, the specific configuration of the support side fire-resistant covering material 73 is arbitrary, but in the embodiment, as shown in Figures 3 and 4, it is configured by stacking multiple fire-stopping members 71a (two stacks in Figures 3 and 4) that can suppress the combustion of the support member 2d, and is arranged so as to cover almost the entire front, rear, and bottom surfaces of the support member 2d, and is connected to the support member 2d by fasteners, adhesives, etc.

[0041] (Configuration - Storage section - Driven side bearing plate, Driven side mounting section) Returning to Figure 2, the driven side bearing plate 13 is a plate material for covering the right end of the storage space, and as shown in Figures 2 and 3, it is arranged approximately vertically so as to cover the right end of the storage space, and is connected to the driven side mounting part 14 by a fixing device or the like.

[0042] The driven-side mounting portion 14 is used to mount the driven-side bearing plate 13 to the support member 2d via a base member 80, which will be described later. This driven-side mounting portion 14 is made up of, for example, a combination of a plurality of known steel plates (one example being an L-shaped metal fitting and a base member that connects the L-shaped metal fitting and the base member 80), and is provided between the driven-side bearing plate 13 and the base member 80. The "driven-side bearing plate 13" and "driven-side mounting portion 14" together correspond to the "bearing means" in the claims.

[0043] (Configuration - Storage section - Case plate) Returning to Figure 2, the case plate 15 is a curved plate material for covering the rear, top, and bottom surfaces of the storage space, and as shown in Figures 2 to 4, is arranged to cover the rear, top, and bottom surfaces of the storage space, and is connected to the base member 80, etc., described later, by fixing devices, etc.

[0044] (Configuration - Storage section - Other configurations) 4, ceiling material 2b located below storage section 10 is provided with lintels 10a on both the outside and inside of the room centered around opening / closing body 30. Between these lintels 10a, lintel openings 10b are formed over the entire length of opening 3 in the left-right direction, and opening / closing body 30 is taken in and out through these lintel openings 10b.

[0045] (Configuration - Guide rail) Returning to Fig. 1, the guide rail 20 guides the opening / closing body 30 to move along the opening / closing direction (vertical direction) of the opening 3. The guide rail 20 is an elongated body formed, for example, so that its cross section is substantially U-shaped, and as shown in Fig. 1, it is arranged in a direction substantially along the vertical direction at each of the left and right ends of the opening / closing device 1, and is fixed directly to the pillar material 2f or indirectly via a base material (not shown).

[0046] (Configuration - Opening and closing body) The opening / closing body 30 opens and closes the opening 3, and specifically, the opening / closing body 30 can be moved to a fully open state, a fully closed state, or a half open state by being moved to a closed state or an open state by the rotational drive of the winding shaft 40. The opening / closing body 30 is configured using, for example, a known shutter curtain. Specifically, as shown in FIG. 1, the opening / closing body 30 has a plurality of slats 31, and the plurality of slats 31 are fitted and connected to each other via fitting portions (not shown) formed on both the upper and lower ends of each slat 31.

[0047] In addition, each of the left and right ends of this opening / closing body 30 is inserted into the inside of the guide rail 20 through the U-shaped open end of the guide rail 20, and is able to slide inside the guide rail 20 in the vertical direction, and is restricted from falling out of the guide rail 20 in the front-to-back direction.

[0048] A seat plate 32 is connected to the lower end of the opening / closing body 30. The seat plate 32 is disposed so as to be adjacent to or in contact with a wooden floor material 2e (hereinafter referred to as the "lower floor material 2e") located below the ceiling material 2b in the fully closed state, and is formed over the entire length of the lower end of the opening / closing body 30 in the left-right direction.

[0049] (Configuration - Winding shaft) The winding shaft 40 is used to move the opening-closing body 30 between opening and closing positions (note that in FIG. 4, the maximum winding diameter M of the winding shaft 40 is shown by an imaginary line). The winding shaft 40 is configured using, for example, a known winding shaft or the like, and is installed along the left-right direction. A connecting slat (not shown) that is connected to the upper end of the opening-closing body 30 is connected to the winding shaft 40, and by rotating the winding shaft 40, the opening-closing body 30 can be moved between opening and closing positions via the connecting slat.

[0050] As shown in FIGS. 2 and 3, the take-up shaft 40 is provided with a drive-side shaft portion 41, a take-up shaft-side sprocket portion 42, and a driven-side shaft portion 43.

[0051] Of these, the drive side shaft portion 41 is a connecting means for connecting the winding shaft 40 and the drive side bearing plate 11, and is formed of a long rod-shaped body. As shown in Figures 2 and 3, the axial direction of the drive side shaft portion is arranged along the left-right direction (in Figure 3, the tip of the drive side shaft portion 41 is arranged to be located to the left of the drive side bearing plate 11), and it is rotatably inserted into the drive side bearing plate 11 via a drive side bearing material (not shown).

[0052] The take-up shaft sprocket 42 transmits the rotational driving force from the opening / closing device 60 to the drive-side shaft 41 via a transmission member 52 (for example, a circular roller chain or the like). The take-up shaft sprocket 42 is configured using, for example, a known sprocket, and as shown in Fig. 3, is provided at or near the tip of the drive-side shaft 41 and is fixed to the drive-side shaft 41 by a fixture or the like.

[0053] The driven side shaft portion 43 is a connecting means for connecting the winding shaft 40 and the driven side bearing plate 13, and is formed of a long rod-shaped body. As shown in Figures 2 and 3, the axial direction of the driven side shaft portion 43 is arranged along the left-right direction (in Figure 3, the tip of the driven side shaft portion 43 is arranged to be located to the right of the driven side bearing plate 13), and is rotatably inserted into the driven side bearing plate 13 via a driven side bearing material (not shown).

[0054] (Configuration - Opening and closing mechanism) Returning to Fig. 2, the opening / closing device 60 is a driving means that electrically opens and closes the opening / closing body 30 by controlling the rotation of the winding shaft 40. This opening / closing device 60 is configured, for example, by a known opening / closing device, and as shown in Figs. 2 to 4, is provided outside the storage unit 10, closer to the interior of the room than the storage unit 10, and is fixed by a fixing device or the like to a connecting plate 61 connected to the drive-side bearing plate 11.

[0055] (Configuration - Operating device) The operating device is an operating means that accepts operating inputs regarding the closing or opening movement of the opening / closing body 30, and is configured, for example, using a known operating means for a shutter device (for example, a wired or wireless operating device, etc.), and is provided outside the storage section 10 in a position near the opening 3.

[0056] (Configuration-Controller) The control device is a device that interconnects the various parts of the opening and closing device 1. This control device is configured using, for example, a known shutter control device, is electrically connected to the opening and closing machine 60 via wiring (not shown), and includes a communication unit, a power supply unit, a control unit, and a memory unit (all not shown).

[0057] Of these, the communication unit is a communication means for communicating between the control device and the operating device or an external device. The power supply unit is a power supply means that supplies power supplied from a commercial power source or a battery (e.g., a battery, etc.) (not shown) to each part of the control device and also to the opening / closing device 60. The control unit is a control means that controls each part of the control device. The memory unit is a memory means that stores programs and various data required for the operation of the control device.

[0058] (Configuration - Bearing Means Fixing Structure) Returning to FIG. 2, the fixing structure of the bearing means will now be described.

[0059] This opening and closing device 1 is provided with a fixing structure for fixing the bearing means of the storage section 10 (specifically, the bearing means consisting of the "drive side bearing plate 11" and the "drive side mounting section 12", and the bearing means consisting of the "driven side bearing plate 13" and the "driven side mounting section 14") to the support member 2d. The features of this fixing structure are as follows in this embodiment.

[0060] (Configuration - Fixing structure of bearing means - First feature) First, as a first feature of the fixing structure according to the embodiment, the fixing structure includes a base member 80 .

[0061] The base member 80 is a member that supports the bearing means, and in this embodiment is made up of a combination of multiple frame members 81 (specifically, steel pipe members) each having multiple storage spaces 81a.

[0062] 2 to 4, the base member 80 is configured by combining a plurality of frame members 81 (vertical frame members that are long in the up-down direction and horizontal frame members that are long in the left-right direction in FIG. 2) using welding or fasteners, etc., so that the front shape of the base member 80 is ladder-shaped (in the figure, in addition to this configuration, two vertical frame members are arranged side by side at both the left and right ends of the base member 80). However, without being limited to this, the base member 80 may also be configured by combining a plurality of frame members 81 so that the front shape of the base member 80 is, for example, lattice-shaped or circular (for example, rectangular circular).

[0063] In the following, as necessary, of the frame materials 81 (vertical frame materials) of the base member 80, the vertical frame material 82 located on the drive-side mounting portion 12 side will be referred to as the "drive-side vertical frame material 82," the vertical frame material 83 located on the driven-side mounting portion 14 side will be referred to as the "driven-side vertical frame material 83," and the vertical frame material 84 located between the drive-side vertical frame material 82 and the driven-side vertical frame material 83 will be referred to as the "intermediate vertical frame material 84." Also, of the frame materials (horizontal frame materials) of the base member 80, the horizontal frame material 85 located on the upper floor material 2c side will be referred to as the "upper floor-side horizontal frame material 85," and the horizontal frame material 86 located on the ceiling material 2b side will be referred to as the "ceiling-side horizontal frame material 86."

[0064] The base member 80 is provided between the bearing means and the support-side fire-resistant covering material 73, and is provided so that the bearing means is attached to the base member 80.

[0065] 2 to 4, each frame member 81 of the base member 80 is positioned so as to abut against the support-side fire-resistant covering material 73. The drive-side vertical frame member 82 is positioned so as to abut against the drive-side mounting portion 12, and is connected to the drive-side mounting portion 12 via a fastener 90 (hereinafter referred to as the "base-side fastener 90") (or, if the base member 80 is pre-assembled at a factory, the connection may be by welding). The driven-side vertical frame member 83 is positioned so as to abut against the driven-side mounting portion 14, and is connected to the driven-side mounting portion 14 via the base-side fastener 90 (or, if the base member 80 is pre-assembled at a factory, the connection may be by welding).

[0066] Furthermore, the method of fixing the bearing means using the base member 80 is arbitrary, but in this embodiment, the bearing means is fixed to the support member 2d by a fixing device 91 (hereinafter referred to as the "support side fixing device 91") that is inserted into the support member 2d so as to penetrate the base member 80 and the support side fire-resistant coating material 73.

[0067] 2 to 4, the drive-side mounting portion 12 is fixed to the support member 2d by a plurality of support-side fasteners 91 inserted into the support member 2d so as to penetrate the drive-side vertical frame member 82 and the support-side fire-resistant covering material 73. The driven-side mounting portion 14 is fixed to the support member 2d by a plurality of support-side fasteners 91 inserted into the support member 2d so as to penetrate the driven-side vertical frame member 83 and the support-side fire-resistant covering material 73. The upper floor-side horizontal frame member 85 is fixed to the support member 2d by a plurality of support-side fasteners 91 inserted into the support member 2d so as to penetrate the upper floor-side horizontal frame member 85 and the support-side fire-resistant covering material 73. The ceiling-side horizontal frame member 86 is fixed to the support member 2d by a plurality of support-side fasteners 91 inserted into the support member 2d so as to penetrate the ceiling-side horizontal frame member 86 and the support-side fire-resistant covering material 73.

[0068] In this case, the method of installing each support side fixing device 91 is arbitrary, but in the embodiment, each support side fixing device 91 is arranged so that the head portion 91a of each support side fixing device 91 is accommodated within the accommodation space 81a of each frame material 81 of the base member 80.

[0069] Specifically, as shown in Figures 3 and 4, each support side fixing device 91 is inserted through a base side insertion hole (not shown) formed in each frame material 81 of the base member 80, and the head portion 91a of each support side fixing device 91 is positioned within the above-mentioned storage space 81a, thereby providing each support side fixing device 91.

[0070] This prevents each support side fixing device 91 from being exposed to the outside, and reduces the transfer of heat from a fire that occurs around the opening 3 to each support side fixing device 91 while maintaining the design around the base member 80.

[0071] Due to this first feature, the bearing means can be firmly fixed to the support member 2d while suppressing damage to the support side fire-resistant covering material 73 (for example, the occurrence of cracks in the support side fire-resistant covering material 73) compared to when the bearing means is fixed to the support member 2d without using the base member 80, thereby improving the installability of the bearing means.

[0072] (Configuration - Fixing structure of bearing means - Second feature) Next, as a second feature of the fixing structure according to the embodiment, the fixing structure further includes a suppressing portion 100.

[0073] The suppression unit 100 is a suppression means for suppressing the heat of a fire from being transmitted to the support-side fixing device 91 when a fire breaks out around the opening 3. The suppression unit 100 is configured with, for example, a known fire-resistant covering material (one example is a fire-resistant covering material in which multiple fire-stopping members 71a are laminated), and is provided on the base member 80, and more specifically, as shown in FIG. 4, is provided on the upper floor-side horizontal frame member 85 and the ceiling-side horizontal frame member 86.

[0074] In the following, where necessary, the suppression section 101 of the suppression section 100 located on the upper floor-side horizontal frame member 85 side will be referred to as the "upper suppression section 101," and the suppression section 102 located on the ceiling-side horizontal frame member 86 side will be referred to as the "lower suppression section 102."

[0075] Furthermore, the method of installing the suppression unit 100 is arbitrary, but in the embodiment, the suppression unit 100 is provided on the base member 80 so that the head portion 91a and / or its surrounding portions of each support side fixing device 91 are not exposed to the outside.

[0076] 3 and 4, the upper restraining portion 101 is disposed on the rear surface of the upper floor-side horizontal frame member 85 so as to directly block the base-side insertion hole formed on the rear surface of the upper floor-side horizontal frame member 85, and is connected to the upper floor-side horizontal frame member 85 with a fastener, adhesive, or the like. The lower restraining portion 102 does not directly block the base-side insertion hole formed on the rear surface of the ceiling-side horizontal frame member 86, but is disposed on the underside of the ceiling-side horizontal frame member 86 so that the entire ceiling-side horizontal frame member 86 cannot be seen from below, and is connected to the ceiling-side horizontal frame member 86 with a fastener, adhesive, or the like.

[0077] However, this is not limited to this, and for example, a suppression section 100 may be provided (or filled) in at least the portion of the storage space 81a of each frame material 81 of the base member 80 that corresponds to the base-side insertion hole, and connected to the base member 80 using a fixing device, adhesive, etc.

[0078] This makes it possible to prevent the head portion 91a of the support-side fixture 91 and / or its vicinity from being exposed to the outside, and to suppress the heat of the fire from being conducted to the support-side fixture 91.

[0079] The second feature described above makes it possible to suppress the heat of the fire from being conducted to the support-side fixing device 91, and to prevent the support member 2d from falling off due to the heat of the fire being conducted to the support member 2d.

[0080] (Configuration - Bearing Means Fixing Structure - Third Feature) Next, as a third feature of the fixing structure according to the embodiment, the fixing structure further includes a reinforcing portion 110.

[0081] The reinforcing portion 110 is a reinforcing means for reducing the load acting on the support-side fixing device 91 by supporting the base member 80. This reinforcing portion 110 is formed, for example, from a steel plate, and as shown in Fig. 4, is provided below the base member 80 and fixed to the support member 2d and base member 80 (specifically, the ceiling-side horizontal frame member 86) by fixing devices 92 (hereinafter referred to as "reinforcing fixing devices 92").

[0082] Furthermore, the specific shape and size of the reinforcing portion 110 are arbitrary, but in this embodiment they are set as follows.

[0083] That is, the cross-sectional shape of the reinforcing part 110 along the YZ plane is set to a shape that generally follows the base member 80 and the support member 2d, and as one example, is set to a generally Z-shape. Specifically, as shown in Fig. 4, the reinforcing part 110 includes a first reinforcing piece 111 located on the underside of the support member 2d, a second reinforcing piece 112 located on the rear side of the support member 2d, and a third reinforcing piece 113 located on the base member 80 side.

[0084] Furthermore, the length of the reinforcing portion 110 in the left-right direction is set to be approximately the same as the length of the base member 80 in the left-right direction. However, this is not limiting, and for example, the length may be set to be shorter or longer than the length of the base member 80 in the left-right direction.

[0085] The length of the reinforcing portion 110 in the front-rear direction is set to be longer than the length of the base member 80 in the front-rear direction and shorter than the length of the support member 2d in the front-rear direction.

[0086] Furthermore, the vertical length of the reinforcing portion 110 is set to be shorter than the vertical length of the base member 80 .

[0087] The thickness of the reinforcing portion 110 is set to a thickness that can support the base member 80, and is set to about 1 mm to 3 mm, for example.

[0088] This third feature can reduce the load acting on the support-side fixing device 91 due to, for example, the weight of the opening / closing body 30 and the winding shaft 40. This can prevent the support-side fixing device 91 from being pulled out of the support member 2d, thereby improving the stability of the installation of the base member 80.

[0089] (Operation of the switching device) Next, the operation of the opening and closing device 1 configured as above will be explained. The operation of the opening and closing device 1 can be broadly divided into an operation under normal circumstances (hereinafter referred to as a "first operation"), an operation when a fire breaks out on the outside of the room (hereinafter referred to as a "second operation"), and an operation when a fire breaks out on the inside of the room (hereinafter referred to as a "third operation"), and each operation will be explained below. Note that the second operation and the third operation are substantially the same, and therefore an explanation of the third operation will be omitted.

[0090] (Operation of Switchgear - First Operation) 4, a base member 80 is provided between the bearing means and the support-side fire-resistant covering material 73, and the bearing means is fixed to the support member 2d by a support-side fixture 91 that is inserted into the support member 2d so as to penetrate the base member 80 and the support-side fire-resistant covering material 73. This prevents the support-side fire-resistant covering material 73 from directly contacting the bearing means (specifically, the drive-side mounting portion 12 and the driven-side mounting portion 14). As a result, for example, the support-side fire-resistant covering material 73 is not directly subjected to bearing pressure or the like from the bearing means, and the bearing means can be firmly fixed to the support member 2d while suppressing damage to the support-side fire-resistant covering material 73 (for example, cracking of the support-side fire-resistant covering material 73).

[0091] Furthermore, because the base member 80 is supported by the reinforcing portion 110, the load acting on the support-side fixture 91 due to, for example, the weight of the opening / closing body 30 and the winding shaft 40 is reduced. This prevents the support-side fixture 91 from being pulled out of the support member 2d, and improves the stability of the installation of the base member 80.

[0092] (Operation of Switchgear - Second Action) For example, if a fire breaks out outside the room in the fully closed state, the support member 2d will be exposed to the flames of the fire.

[0093] In this case, the support member 2d is prevented from burning by the support-side fire-resistant covering material 73. As a result, the fire can be prevented from spreading from the outside to the inside of the room via the support member 2d due to the combustion of at least a portion of the support member 2d.

[0094] Furthermore, since suppression unit 100 is provided on base member 80 so as to prevent head portion 91a of support-side fixture 91 and / or its surrounding area from being exposed to the outside, head portion 91a of support-side fixture 91 and / or its surrounding area can be prevented from being exposed to the outside. This makes it possible to suppress the heat of the fire from being conducted to support-side fixture 91, and to prevent support member 2d from falling off due to the heat of the fire being conducted to support member 2d.

[0095] (Effects of the embodiment) Thus, according to this embodiment, the base member 80 is provided between the bearing means and the support side fire-resistant covering material 73, and the base member 80 is provided with the bearing means attached thereto, and the bearing means is fixed to the support member 2d by the support side fixing device 91 which is inserted into the support member 2d so as to penetrate the base member 80 and the support side fire-resistant covering material 73.Therefore, compared to when the bearing means is fixed to the support member 2d without using the base member 80, the bearing means can be firmly fixed to the support member 2d while suppressing the occurrence of damage to the support side fire-resistant covering material 73 (for example, the occurrence of cracks in the support side fire-resistant covering material 73), thereby improving the installability of the bearing means.

[0096] Furthermore, the base member 80 is constructed by combining multiple frame materials 81 each having a storage space 81a, and the support side fixing device 91 is arranged so that the head portion 91a of the support side fixing device 91 is stored within the storage space 81a. This prevents the support side fixing device 91 from being exposed to the outside, and reduces the transfer of heat from a fire occurring around the opening 3 to the support side fixing device 91 while maintaining the design around the base member 80.

[0097] In addition, when a fire breaks out around the opening 3, a suppression section 100 is provided to suppress the heat of the fire from being conducted to the support side fixing device 91, so that the heat of the fire can be suppressed from being conducted to the support side fixing device 91, and the heat of the fire can be prevented from being conducted to the support member 2d, which would cause the support member 2d to fall off.

[0098] Furthermore, since the suppression section 100 is provided on the base member 80 so that the head portion 91a of the support side fixing device 91 and / or its surrounding portions are not exposed to the outside, it is possible to prevent the head portion 91a of the support side fixing device 91 and / or its surrounding portions from being exposed to the outside, and to suppress the heat of the fire from being conducted to the support side fixing device 91.

[0099] Furthermore, since the base member 80 is supported by the reinforcing portion 110 for reducing the load acting on the support-side fixing device 91, it is possible to reduce the load acting on the support-side fixing device 91 due to, for example, the weight of the opening / closing body 30 and the winding shaft 40. This makes it possible to prevent the support-side fixing device 91 from being pulled out of the support member 2d, thereby improving the stability of the installation of the base member 80.

[0100] [III] Modifications to the embodiment Although the embodiments of the present invention have been described above, the specific configurations and means of the present invention can be modified and improved as desired within the scope of the technical ideas of the inventions set forth in the claims. Such modifications will be described below.

[0101] (About the problem to be solved and the effects of the invention) First, the problems that the invention aims to solve and the effects of the invention are not limited to those described above, and the present invention may solve problems that are not described above or achieve effects that are not described above, or may solve only some of the problems that are described or achieve only some of the effects that are described.

[0102] (shape, numbers, structure, time series) The components illustrated in the embodiments and drawings may be modified and improved as desired within the scope of the technical concept of the present invention in terms of shape, numerical value, or the structure or chronological relationship of multiple components.

[0103] (Various fire-resistant coating materials) In the above embodiment, it has been described that the various fire-resistant covering materials (specifically, the floor-side fire-resistant covering material 72, the support-side fire-resistant covering material 73, and the fire-resistant covering material of the suppression section 100) are configured by stacking a plurality of fire-stopping members 71a, but this is not limited thereto. For example, they may be configured with fire-stopping members 71a and a substitute fire member (for example, a wooden laminated lumber, a wooden laminated material, or a combination thereof) that is positioned outside the fire-stopping members 71a and that suppresses the progression of combustion or carbonization of the support members 2d. Alternatively, they may be configured with a single layer of fire-stopping member 71a.

[0104] (About the base material) In the above embodiment, the base member 80 has been described as including the intermediate vertical frame member 84, the upper floor-side horizontal frame member 85, and the ceiling-side horizontal frame member 86, but this is not limiting, and for example, at least one of the intermediate vertical frame member 84, the upper floor-side horizontal frame member 85, and the ceiling-side horizontal frame member 86 may be omitted. Note that, if the intermediate vertical frame member 84, the upper floor-side horizontal frame member 85, and the ceiling-side horizontal frame member 86 are omitted, the driving-side vertical frame member 82 and the driven-side vertical frame member 83 may be provided separately without being connected to each other.

[0105] In the above embodiment, the frame material 81 of the base member 80 is described as being made of steel pipe material, but this is not limited thereto. For example, it may be made of H-shaped steel material or U-shaped steel material. Alternatively, it may be made of frame material 81 without the accommodation space 81a (for example, flat steel material or steel angle bar).

[0106] (Regarding the fixing structure of the bearing means) In the above embodiment, it has been described that the support-side fixture 91 is provided so that the head portion 91a of the support-side fixture 91 is accommodated in the accommodation space 81a of each frame material 81 of the base member 80, but this is not limiting. For example, the head portion 91a of the support-side fixture 91 may be provided so as to be located outside the base member 80.

[0107] Furthermore, in the above embodiment, the fixing structure is described as having a suppression portion 100 and a reinforcing portion 110, but this is not limited thereto, and for example, at least one of the suppression portion 100 or the reinforcing portion 110 may be omitted.

[0108] Furthermore, in the above embodiment, the reinforcing portion 110 is described as being provided below the base member 80, but this is not limiting, and for example, the reinforcing portion 110 may be provided above the base member 80. In this case, the reinforcing portion 110 may be fixed to the support member 2d and / or the upper floor member 2c by a reinforcing fastener 92. Alternatively, the reinforcing portion 110 may be provided both above and below the base member 80.

[0109] (Addendum) The fixing structure of the bearing means in Appendix 1 is a fixing structure for fixing a bearing means that rotatably supports a winding shaft for moving an opening / closing body that opens and closes an opening provided in the building's skeleton to a wooden support member whose outer surface is covered with a fire-resistant covering material among the members that make up the skeleton, and is a base member that is provided between the bearing means and the fire-resistant covering material, and includes a base member to which the bearing means is attached, and the bearing means is fixed to the support member by a fixing device that is inserted into the support member so as to penetrate the base member and the fire-resistant covering material.

[0110] The fixing structure of the bearing means in Appendix 2 is the fixing structure of the bearing means described in Appendix 1, in which the base member is constructed by combining multiple frame materials each having an accommodation space, and the fixing device is arranged so that the head portion of the fixing device is accommodated within the accommodation space.

[0111] The fixing structure of the bearing means of Supplementary Note 3 is the fixing structure of the bearing means of Supplementary Note 1 or 2, and further comprises suppression means for suppressing the heat of the fire from being conducted to the fixing device when a fire breaks out around the opening.

[0112] The fixing structure of the bearing means in Appendix 4 is the fixing structure of the bearing means described in Appendix 3, in which the suppression means is provided on the base member so that the head portion of the fixing device and / or its surrounding portion is not exposed to the outside.

[0113] The fixing structure for bearing means of Supplementary Note 5 is the fixing structure for bearing means described in any one of Supplementary Notes 1 to 4, and is provided with reinforcing means for supporting the base member and thereby reducing the load acting on the fixing device.

[0114] (Effect of supplementary notes) According to the fixing structure of the bearing means described in Appendix 1, the bearing means is fixed to the support member by a fixing device that is inserted into the support member so as to penetrate the base member and the fire-resistant covering material, and is a base member that is provided between the bearing means and the fire-resistant covering material.Therefore, compared to when the bearing means is fixed to the support member without using a base member, the bearing means can be firmly fixed to the support member while suppressing the occurrence of damage to the fire-resistant covering material (for example, the occurrence of cracks in the fire-resistant covering material), and the installability of the bearing means can be improved.

[0115] According to the fixing structure of the bearing means described in Appendix 2, the base member is constructed by combining multiple frame materials each having an accommodation space, and the fixing device is arranged so that the head portion of the fixing device is accommodated within the accommodation space. This prevents the fixing device from being exposed to the outside, and reduces the transfer of heat from a fire occurring around the opening to the fixing device while maintaining the design around the base member.

[0116] According to the fixing structure of the bearing means described in Appendix 3, when a fire breaks out around the opening, a suppression means is provided to suppress the heat of the fire from being conducted to the fixing device, so that the heat of the fire can be suppressed from being conducted to the fixing device, and it is possible to prevent the support member from falling off due to the heat of the fire being conducted to the support member.

[0117] According to the fixing structure of the bearing means described in Appendix 4, the restraining means is provided on the base member so that the head portion of the fixing device and / or its surrounding area is not exposed to the outside, so that the head portion of the fixing device and / or its surrounding area can be prevented from being exposed to the outside and the heat of the fire can be prevented from being conducted to the fixing device.

[0118] According to the fixing structure of the bearing means described in Supplementary Note 5, by supporting the base member, a reinforcing means is provided for reducing the load acting on the fixing device, so that the load acting on the fixing device due to, for example, the weight of the opening / closing body and the winding shaft can be reduced. This makes it possible to prevent the fixing device from being pulled out of the support member, and improves the stability of the installation of the base member. [Explanation of symbols]

[0119] 1 Switchgear 2 skeleton 2a inner wall 2b Ceiling material 2c Upper floor material 2d Support member 2e Lower floor material 2f pillar material 3 Opening 10 Storage area 10a Lintel 10b Lintel opening 11 Drive side bearing plate 12 Drive side mounting part 13 Driven side bearing plate 14 Driven side mounting part 15 Case board 20 Guide rail 30 Opening and closing body 31 Slats 32 Seat board 40 Winding shaft 41 Drive side shaft 42 Winding shaft side sprocket 43 Driven side shaft 52 Transmission member 60 Opening and Closing Machine 61 Connection plate 71a Fire-retardant material 72 Floor side fireproof covering material 73 Support side fireproof covering material 80 Base material 81 Frame material 81a Containment Space 82 Driving side vertical frame member 83 Follower side vertical frame member 84 Intermediate vertical frame material 85 Upper floor horizontal frame 86 Ceiling side horizontal frame material 90 Base fixing device 91 Support side fixture 91a Head part 92 Reinforcement Fixtures 100 Suppression part 101 Upper restraint part 102 Lower suppression part 110 Reinforcement 111 1st reinforcement piece 112 Second reinforcement piece 113 Third reinforcement piece M Maximum winding diameter

Claims

1. A fixing structure for fixing a bearing means for rotatably supporting a winding shaft for moving an opening / closing body that opens and closes an opening provided in a building skeleton to a wooden support member whose outer surface is covered with a fire-resistant covering material among members that constitute the skeleton, a base member provided between the bearing means and the fire-resistant covering material, the base member having the bearing means attached thereto; fixing the bearing means to the support member by a fastener inserted into the support member so as to penetrate the base member and the fire-resistant covering material; Further provided is a suppression means for suppressing the heat of a fire from being conducted to the fixing device when a fire occurs around the opening, The suppression means is provided so as to cover the outer surface of the base member. A fixing structure for the bearing means.

2. The suppression means is provided so as to cover the exposed surface of the outer surface of the base member.

2. The fixing structure of the bearing means according to claim 1.

3. The base member is constructed by combining a plurality of frame materials each having a storage space, The fixture is provided so that a head portion of the fixture is accommodated in the accommodation space.

3. The fixing structure of the bearing means according to claim 1 or 2.

4. The suppression means is provided on the base member so that the head portion of the fixing tool and / or its vicinity are not exposed to the outside. The fixing structure of the bearing means according to any one of claims 1 to 3.

5. a reinforcing means for supporting the base member to reduce the load acting on the fastener; The fixing structure of the bearing means according to any one of claims 1 to 4.

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