Building material and shutter device

Abstract

To provide a building material provided in an opening of a building and capable of suppressing deformation of a member by a simple configuration.SOLUTION: The slat 42 is a building material provided in the opening 12 provided in the outer wall 11. The shutter device 3 includes a shutter curtain 41 that opens and closes the opening 12 and opens and closes in the vertical direction, and a reinforcing member 5 formed of fiber reinforced plastic. The shutter curtain 41 has a plurality of slats 42 formed in an elongated shape with the left-right direction as the longitudinal direction. The reinforcing member 5 is provided on at least one of the plurality of slats 42.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a building material and a shutter device. [Background technology]

[0002] Conventionally, there are building materials that are installed in openings of buildings such as buildings and houses. An example of such a building material is a shutter device that includes a shutter curtain made up of connected slats and a guide rail into which the ends of the slats are inserted and which guides the shutter curtain (Patent Document 1).

[0003] In such building materials, there is a concern that the slats may be deformed if strong wind pressure acts on the shutter curtain due to a typhoon or the like. Therefore, in the shutter device of Patent Document 1, wind-resistant hooks are provided at the longitudinal ends of the slats. The wind-resistant hooks are engaged with engaging portions provided on the guide rails. Furthermore, reinforcing bars are provided along the length of the slats on which the wind-resistant hooks are provided. The wind-resistant hooks and reinforcing bars are connected. This increases the wind pressure resistance of the slats. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 9-256751 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the shutter device of Patent Document 1, the mechanism for improving wind pressure resistance is relatively large-scale. This may result in, for example, an increase in the weight of the slats, which may reduce the ease of opening and closing the shutter curtain. Furthermore, if the number of wind-resistant hooks and reinforcing bars is reduced in order to prevent the slats from becoming too heavy, the wind pressure resistance of the slats will decrease. For this reason, the challenge is to suppress deformation of the components with a simple configuration.

[0006] Although the problems have been described using a shutter device as an example, there is a similar need for other building materials installed in openings in buildings to suppress deformation of components with a simple configuration.

[0007] An object of the present disclosure is to provide a building material and a shutter device that are installed in an opening of a building and that can suppress deformation of components with a simple configuration. [Means for solving the problem]

[0008] The building material disclosed herein is a building material to be installed in an opening provided in a building frame, and comprises an elongated member whose longitudinal direction is perpendicular to the indoor / outdoor direction, and a reinforcing member formed from fiber-reinforced plastic and installed on the elongated member.

[0009] The shutter device of the present disclosure is a shutter device equipped with a shutter curtain having slats as building materials of the present disclosure, and when the direction in which the shutter curtain opens and closes is defined as the opening and closing direction, the slats as building materials are arranged in the central area when the shutter curtain is divided into three equal parts in the opening and closing direction. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a view of the building material of the first embodiment as seen from the indoor side. [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 3] FIG. 2 is a cross-sectional view taken along the line III-III in FIG. [Figure 4] This is a view of the slats from inside the room. [Figure 5] 5 is a cross-sectional view taken along line VV in FIG. 4. FIG. [Figure 6] FIG. 10 is a view of the upper part of the building material of the second embodiment as seen from the indoor side. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 6. [Figure 8] FIG. 10 is a view of the left part of the building material of the third embodiment as seen from the indoor side. [Figure 9] 9 is a diagram showing the vicinity of the movable frame, specifically an enlarged view of part IX in FIG. 8. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] First Embodiment A first embodiment of the present disclosure will be described below with reference to FIGS. 1 to 5. A building material of the present disclosure is a building material to be installed in an opening provided in a building. As shown in FIG. 1, in this embodiment, the opening provided in the building is an opening 12 provided in an exterior wall 11 as a vehicle entrance / exit. The exterior wall 11 is the exterior wall of a garage where vehicles are stored. A fitting 1 is provided in the opening 12. The fitting 1 includes an opening frame 2 and a shutter device 3.

[0012] The shutter device 3 is, for example, a so-called internal shutter device, and is provided on the indoor side of the outer wall portion 11. As will be described in detail later, the shutter device 3 has a shutter curtain 41. In this embodiment, the opening and closing direction of the shutter curtain 41 is the up and down direction. The opening direction of the shutter curtain 41 is the up direction, and the closing direction of the shutter curtain 41 is the down direction.

[0013] In this specification, the "indoor / outdoor direction" refers to the indoor / outdoor direction at the opening 12. The "vertical direction" refers to the top-to-bottom direction. The "left-right direction" refers to the horizontal direction perpendicular to the indoor / outdoor direction, and refers to the left-to-right direction when the building material is viewed from inside the room. The indoor / outdoor direction, the vertical direction, and the left-to-right direction are perpendicular to each other. The "opening / closing direction" refers to the opening / closing direction of an opening / closing body (e.g., shutter curtain 41) that opens and closes the opening. The "tip" of an opening / closing body refers to the end in the opening direction of each end of the opening / closing body in the opening / closing direction, and the "base end" of an opening / closing body refers to the end opposite to the tip, among each end of the opening / closing body in the opening / closing direction.

[0014] 2 and 3, the opening frame 2 is a frame body provided on the periphery of the opening 12. The opening frame 2 is made of wood, for example. The opening frame 2 has an upper frame 21 and a pair of left and right vertical frames 22.

[0015] The upper frame 21 is an elongated member extending in the left-right direction above the opening 12. The upper frame 21 is formed, for example, in the shape of a rectangular plate. Each vertical frame 22 is an elongated member extending in the up-down direction at both ends of the left-right direction of the opening 12. Each vertical frame 22 is formed, for example, in the shape of a quadrangular prism. The upper frame 21 and each vertical frame 22 each correspond to an elongated member.

[0016] The shutter device 3 is provided in the opening 12. The shutter device 3 has a case 31, a winding shaft 32, a pair of left and right guide rails 33, and a shutter curtain 41.

[0017] The case 31 is a component that houses the shutter curtain 41. The case 31 is formed, for example, in the shape of a substantially rectangular parallelepiped box. The case 31 is provided above the opening of the opening 12. The case 31 is fixed, for example, to the upper frame 21, for example, by screws. The material of the case 31 is, for example, a metal such as iron, stainless steel, or aluminum. However, the material of the case 31 is not limited to this, and may be, for example, a resin.

[0018] The winding shaft 32 is a member around which the shutter curtain 41 is wound. The winding shaft 32 is provided inside the case 31. The winding shaft 32 is formed in a long cylindrical shape with its longitudinal direction perpendicular to the indoor / outdoor direction (more specifically, the left-right direction). The winding shaft 32 corresponds to a long member. The winding shaft 32 is provided so as to be rotatable about its central axis. The material of the winding shaft 32 is, for example, metal such as iron, stainless steel, or aluminum. However, the material of the winding shaft 32 is not limited to these and may be, for example, resin.

[0019] Each guide rail 33 is a member that guides the shutter curtain 41 when the shutter curtain 41 is opened or closed. Each guide rail 33 is fixed to each vertical frame 22, for example, by screws (not shown). Each guide rail 33 is formed in an elongated shape with the vertical direction as the longitudinal direction. Each guide rail 33 corresponds to an elongated member. The material of each guide rail 33 is, for example, metal such as iron, stainless steel, or aluminum. However, the material of each guide rail 33 is not limited to this and may be, for example, resin. Each guide rail 33 has a guide groove 34.

[0020] Each guide groove 34 is a portion into which each left-right end of the shutter curtain 41 is inserted. In a vertical cross-sectional view, each guide groove 34 opens in a direction away from the opening periphery of the opening 12 (see FIG. 3). Each guide groove 34 extends, for example, over the entire longitudinal area of ​​the guide rail 33.

[0021] The shutter curtain 41 is an opening / closing body that opens and closes the opening 12, and opens and closes in a direction perpendicular to the indoor / outdoor direction (specifically, the up-and-down direction). One of the ends of the shutter curtain 41 in the opening / closing direction is connected to the winding shaft 32. The shutter curtain 41 is sandwiched in the left-right direction by each guide rail 33. The shutter curtain 41 has a plurality of slats 42 and a baseboard 46.

[0022] Each slat 42 is formed in an elongated shape with its longitudinal direction being perpendicular to the indoor / outdoor direction (more specifically, the left-right direction). Each slat 42 corresponds to a long member. Each slat 42 is made of a metal such as iron, stainless steel, or aluminum, and is preferably made of aluminum. By making each slat 42 out of aluminum, the shutter curtain 41 can be made lighter. Reducing the weight of the shutter curtain 41 makes it easier to open and close the shutter curtain 41. However, the material of each slat 42 is not limited to this, and may be, for example, a metal other than aluminum or a resin. As shown in FIGS. 4 and 5 , each slat 42 has a slat main body 43 and a pair of slat connecting portions 44.

[0023] The slat main body 43 is formed in the shape of a long plate with the left-right direction as the longitudinal direction. The slat main body 43 corresponds to a long member. For example, the central part of the slat main body 43 in the up-down direction is curved in an arc shape that is convex in the indoor-outdoor direction (more specifically, toward the outdoor side) (see FIG. 5).

[0024] Each slat connector 44 is provided at each end in the vertical direction of the slat body 43. Each slat connector 44 is formed, for example, in the shape of a hook that curves in the indoor / outdoor direction.

[0025] In vertically adjacent slats 42, the lower slat connecting portion 44 of the upper slat 42 is connected to the upper slat connecting portion 44 of the lower slat 42. A plurality of slats 42 are connected in the vertical direction. The connected slats 42 form a curtain-like member.

[0026] Of the pair of slat connecting portions 44 provided on one slat 42, the upper slat connecting portion 44 curves in a direction opposite to the direction of the lower slat connecting portion 44. Therefore, when the slats 42 are connected, the slat main bodies 43 of the slats 42 all curve in the same direction (more specifically, toward the outside of the room).

[0027] The baseboard 46 is connected to the lower end of the lowest slat 42 among the plurality of slats 42 (see FIG. 2). When the shutter curtain 41 is fully closed, the baseboard 46 abuts or is close to the ground. The baseboard 46 is formed in an elongated shape with its longitudinal direction perpendicular to the indoor / outdoor direction (more specifically, the left-right direction). The baseboard 46 corresponds to a long member. The baseboard 46 is made of a metal such as aluminum. However, the material of the baseboard 46 is not limited to this and may be, for example, resin. The baseboard 46 has, for example, a water-receiving surface 47.

[0028] The water receiving surface 47 is a surface that extends in the indoor / outdoor direction and in the left-right direction. The water receiving surface 47 receives water that flows down along the slats 42 and allows the water to flow down in the left-right direction. Therefore, the baseboard 46 can prevent the ground around the shutter curtain 41 from becoming waterlogged.

[0029] The lower end of the shutter curtain 41 is the lower end of the baseboard 46. Therefore, the tip of the shutter curtain 41 is the lower end of the baseboard 46.

[0030] In addition, the base end of the shutter curtain 41 is connected to the winding shaft 32. When the winding shaft 32 rotates, the shutter curtain 41 is wound up around the winding shaft 32. When the shutter curtain 41 is in the open state, the shutter curtain 41 is housed inside the case 31 in a state where it is wound up around the winding shaft 32.

[0031] The portion of the shutter curtain 41 that is pulled out from the winding shaft 32 is positioned closer to the exterior wall portion 11 than the central axis of the winding shaft 32. When winding up the shutter curtain 41, the winding shaft 32 rotates in a direction away from the exterior wall portion 11. Each slat main body portion 43 is curved in an arc that convexly faces the exterior side of the room. Therefore, when the shutter curtain 41 is wound up around the winding shaft 32, the slat main body portion 43 is curved along the side surface of the winding shaft 32.

[0032] Both left and right end portions of the slats 42 (slat main body portions 43) are inserted into the respective guide rails 33, more specifically, into the guide grooves 34. Each left and right end portion of the baseboard 46 is inserted into each guide rail 33, more specifically, into the guide grooves 34. Each left and right end portion of the slats 42 and each left and right end portion of the baseboard 46 are movable inside each guide groove 34 along the longitudinal direction of each guide rail 33. The guide rails 33 can suppress shaking of the shutter curtain 41 in the indoor / outdoor direction when the shutter curtain 41 is opened or closed.

[0033] Here, the slat 42 includes a reinforcing member 5 formed from fiber-reinforced plastics (FRP) and provided on a slat main body 43. The reinforcing member 5 is provided on at least one slat main body 43 of the multiple slats 42 (slat main body 43). The reinforcing member 5 is formed in an elongated shape with its longitudinal direction coinciding with the longitudinal direction of the slat main body 43. The reinforcing member 5 has, for example, a rectangular plate shape. The slat 42 provided with the reinforcing member 5 corresponds to a building material. In other words, the slat 42 as a building material includes the slat main body 43 as an elongated member and the reinforcing member 5.

[0034] The dimension of the reinforcing member 5 in the indoor / outdoor direction (sometimes referred to as the "thickness of the reinforcing member") can be set appropriately within a range that does not prevent the shutter curtain 41 from being wound up around the winding shaft 32. The thickness of the reinforcing member 5 is preferably 0.5 mm or more and 4.5 mm or less, and more preferably 1 mm or more and 4 mm or less, so that the slats 42 can be suitably reinforced and the shutter curtain 41 can be smoothly wound up.

[0035] The fiber reinforced plastic forming the reinforcing member 5 is, for example, carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GFRP), etc. The fibers forming the fiber reinforced plastic are, for example, carbon fiber, glass fiber, etc., and may also be aramid fiber, boron fiber, etc. The fiber reinforced plastic may be any of isotropic and orthotropic fiber reinforced plastic, and unidirectional fiber reinforced plastic composite materials. However, the fiber reinforced plastic is not limited to these.

[0036] The reinforcing member 5 is preferably made of carbon fiber reinforced plastic. Carbon fiber reinforced plastic is formed, for example, by bundling a plurality of carbon fibers and impregnating the carbon fibers with a resin such as a thermosetting resin or a thermoplastic resin and then curing the resin. An example of the thermosetting resin is an epoxy resin. An example of the thermoplastic resin is a polyamide resin.

[0037] The carbon fibers that make up the carbon fiber reinforced plastic are preferably oriented in the longitudinal direction (specifically, the left-right direction) of the elongated member (specifically, the slat 42).

[0038] The tensile modulus of elasticity of the carbon fibers constituting the carbon fiber reinforced plastic is preferably 230 GPa or more.

[0039] In this specification, the tensile modulus refers to Young's modulus. The Young's modulus is measured based on the general rules prescribed in JIS K 7161 and in accordance with either JIS K 7164 (isotropic and orthotropic fiber reinforced plastics) or JIS K 7165 (unidirectional fiber reinforced plastic composites) depending on the type of fiber reinforced plastic.

[0040] The reinforcing member 5 is fixed via an adhesive layer 6, for example.

[0041] The adhesive layer 6 includes a cured adhesive. The adhesive is not particularly limited as long as it can bond the reinforcing member 5 to the elongated member (slat 42), and examples of the adhesive include elastic adhesives such as modified silicone adhesives, urethane adhesives, and acrylic adhesives.

[0042] The adhesive layer 6 preferably contains a cured product of an adhesive containing modified silicone, and more preferably contains a cured product of a two-component adhesive containing epoxy and modified silicone.

[0043] It is preferable that at least half of the longitudinal (more specifically, left-right) area of ​​the slat 42 be in contact with the adhesive layer 6. It is preferable that the left-right dimension of the portion of the adhesive layer 6 interposed between the slat 42 and the reinforcing member 5 be at least half the left-right dimension of the slat 42.

[0044] The region of the slat 42 that is in contact with the adhesive layer 6 does not have to be continuous in the left-right direction. One reinforcing member 5 and one slat 42 may be fixed by multiple adhesive layers 6 that are spaced apart in the left-right direction. For example, two reinforcing members 5, each one having a left-right dimension that is one-third of the left-right dimension of the slat 42, may be provided on one slat 42 and spaced apart in the left-right direction, and each reinforcing member 5 may be bonded to the slat 42 via the adhesive layer 6 over the entire left-right area of ​​the reinforcing member 5. In this case, two-thirds of the region of the slat 42 in the left-right direction is in contact with the adhesive layer 6.

[0045] The method for fixing the reinforcing member 5 to the slat 42 is not limited to fixing via the adhesive layer 6. For example, the reinforcing member 5 may be fixed to the slat 42 by crimping. It is preferable that the reinforcing member 5 is fixed to the slat 42 by at least one of fixing via the adhesive layer 6 and fixing by crimping.

[0046] The slats 42 are preferably provided with a cover member 7 that covers the reinforcing member 5 from the side facing the slats 42 (more specifically, the room side) with the reinforcing member 5 interposed therebetween (see FIG. 5).

[0047] The cover member 7 is fixed to the slats 42 by, for example, adhesive tape 8. However, the method for fixing the cover member 7 to the slats 42 is not particularly limited. The cover member 7 is formed, for example, in a sheet shape. The material of the cover member 7 is, for example, resin. The color of the cover member 7 is, for example, substantially the same as the color of the slats 42. One cover member 7 may cover only one slat 42, or may cover multiple slats 42. The dimensions, shape, and placement position of the cover member 7 can be set appropriately as long as it can suitably cover the slats 42 from the inside of the room and does not interfere with the winding of the shutter curtain 41. For convenience, the cover member 7 is not shown in Figures 1 to 4.

[0048] Furthermore, it is preferable that the slats 42 having the reinforcing members 5 are provided at least in the central region (sometimes referred to as the "central region") when the shutter curtain 41 is divided into three equal parts in the opening and closing direction (see FIG. 1).

[0049] In addition, as long as slats 42 equipped with reinforcing members 5 are provided at least in the central region, slats equipped with reinforcing members may be further provided in the region above the central region and the region below the central region.

[0050] If the dimension of the opening 12 in the opening / closing direction (more specifically, the up-and-down direction) is defined as the "opening dimension H1," it is more preferable that the slats 42 having the reinforcing member 5 are provided at least in one of the following positions: a position where the distance in the opening / closing direction to the tip of the shutter curtain 41 is 1 / 3 of the opening dimension H1; a position where the distance in the opening / closing direction to the tip of the shutter curtain 41 is 1 / 2 of the opening dimension H1; and a position where the distance in the opening / closing direction to the tip of the shutter curtain 41 is 2 / 3 of the opening dimension H1.

[0051] The reinforcing member 5 provided on the slat 42 whose distance to the tip of the shutter curtain 41 in the opening / closing direction is 1 / 3 of the opening dimension H1 is referred to as "reinforcing member 5A." The reinforcing member 5 provided on the slat 42 whose distance to the tip of the shutter curtain 41 in the opening / closing direction is 1 / 2 of the opening dimension H1 is referred to as "reinforcing member 5B." The reinforcing member 5 provided on the slat 42 whose distance to the tip of the shutter curtain 41 in the opening / closing direction is 2 / 3 of the opening dimension H1 is referred to as "reinforcing member 5C."

[0052] It is preferable that the slat main body portion 43 be provided with a reinforcing member 5 extending in the longitudinal direction of the slat main body portion 43 from a portion of the slat main body portion 43 that is inserted into one of the guide rails 33 to a distance of at least 1 / 3 of the longitudinal dimension of the slat main body portion 43, and a reinforcing member 5 extending in the longitudinal direction of the slat main body portion 43 from a portion of the slat main body portion 43 that is inserted into the other guide rail 33 to a distance of at least 1 / 3 of the longitudinal dimension of the slat main body portion 43.

[0053] In addition, the reinforcing member 5 extending in the longitudinal direction of the slat main body portion 43 from the portion of the slat main body portion 43 that is inserted into one of the guide rails 33 to a distance of at least 1 / 3 of the longitudinal dimension of the slat main body portion 43, and the reinforcing member 5 extending in the longitudinal direction of the slat main body portion 43 from the portion of the slat main body portion 43 that is inserted into the other guide rail 33 to a distance of at least 1 / 3 of the longitudinal dimension of the slat main body portion 43, do not need to be multiple independent reinforcing members 5, but may be a single continuous reinforcing member 5.

[0054] For example, the reinforcing member 5 extends continuously from the portion of the slat main body 43 that is inserted into one of the guide rails 33 to the portion that is inserted into the other guide rail 33. The left-right dimension of the reinforcing member 5 is approximately the same as the left-right dimension of the slat main body 43.

[0055] From the viewpoint of suppressing deformation of the slat 42, the reinforcing member 5 is preferably provided over the entire left-right area of ​​the slat main body 43. The longitudinal dimension of the reinforcing member 5 is preferably the same as the longitudinal dimension of the slat main body 43. The adhesive layer 6 preferably extends over the entire left-right area of ​​the slat main body 43.

[0056] On the other hand, from the viewpoint of reducing the amount of reinforcing member 5 used, it is preferable that the reinforcing member 5 is disposed only in a partial region in the left-right direction of the slat main body portion 43. In this case, if the reinforcing member 5 extends in the longitudinal direction of the slat main body portion 43 from each of the two end portions of the slat main body portion 43 that are inserted into the guide rail 33 by a distance of at least 1 / 3 of the longitudinal dimension of the slat main body portion 43, it is possible to reduce the cost of manufacturing the shutter device 3 and the effort required to attach the reinforcing member 5 to the slats 42 while sufficiently suppressing deformation of the shutter curtain 41.

[0057] From the viewpoint of reducing the amount of adhesive used, it is preferable that the adhesive layer 6 is disposed only on a partial region in the left-right direction of the slat main body portion 43. In this case, if at least half or more of the region of the slat 42 in the longitudinal direction of the slat 42 is in contact with the adhesive layer 6, it is possible to reduce the cost of manufacturing the shutter device 3 and the effort required to bond the reinforcing member 5 to the slat main body portion 43 while sufficiently suppressing deformation of the shutter curtain 41.

[0058] <Effects of the first embodiment> The building material of this embodiment has the following advantages.

[0059] The slats 42 of the shutter curtain 41 are building materials installed in an opening 12 provided in an exterior wall portion 11, and comprise an elongated slat main body portion 43 and a reinforcing member 5 formed from fiber-reinforced plastic and installed on the slat main body portion 43.

[0060] Because the slats 42 are long, they are likely to deform in the longitudinal direction of the slats 42. The longitudinal direction of the slats 42 is perpendicular to the indoor / outdoor direction. Therefore, when wind pressure acts on the shutter curtain 41 from the indoor / outdoor direction, there is a concern that the slats 42 may deform.

[0061] However, with this configuration, because fiber-reinforced plastic has high tensile strength, a small amount of material can be used to suitably suppress deformation of the slats 42. This makes it possible to provide a building material that can suppress deformation of components with a simple configuration.

[0062] Furthermore, because fiber reinforced plastic has a high specific strength (i.e., tensile strength per unit density), it is possible to reduce the weight of the reinforcing member 5 while sufficiently suppressing deformation of the slats 42. By reducing the weight of the reinforcing member 5, it is possible to prevent the shutter curtain 41 from becoming too heavy, and therefore to prevent a loss of operability when opening and closing the shutter curtain 41. Therefore, it is possible to suppress deformation of the slats 42 while ensuring operability when opening and closing.

[0063] Furthermore, it is possible to reduce the thickness of the reinforcing member 5 (in other words, reduce the dimension in the indoor / outdoor direction) while sufficiently suppressing deformation of the slats 42. This makes it easier to reduce the dimension in the indoor / outdoor direction of the slats 42 including the reinforcing member 5, so it is possible to suppress deformation of the slats 42 while maintaining the smart and flat design of the shutter curtain 41.

[0064] Furthermore, fiber reinforced plastic has high vibration damping properties, so the reinforcing member 5 can effectively suppress the vibration of the slats 42. This makes it possible to suppress the generation of noise and the like caused by the vibration of the slats 42.

[0065] The reinforcing member 5 is preferably made of carbon fiber reinforced plastic.

[0066] According to this configuration, carbon fiber reinforced plastic is particularly excellent among fiber reinforced plastics in strength, lightness, tensile modulus, vibration damping property, etc. Therefore, the desired effects can be more suitably obtained.

[0067] The carbon fibers that make up the carbon fiber reinforced plastic are preferably oriented along the longitudinal direction of the slat body portion 43.

[0068] According to this configuration, the longitudinal direction of the carbon fibers can be made to coincide with the direction in which the slats 42 tend to bend, so that bending of the slats 42 due to wind pressure or the like can be more suitably suppressed.

[0069] The tensile modulus of elasticity of the carbon fibers constituting the carbon fiber reinforced plastic is preferably 230 GPa or more.

[0070] According to this configuration, the deflection of the slats 42 can be more suitably suppressed.

[0071] The reinforcing member 5 is preferably fixed to the slat body portion 43 by at least one of fixing via an adhesive layer 6 and fixing by caulking.

[0072] According to this configuration, the reinforcing member 5 can be firmly fixed to the slat 42. This makes it possible to prevent the weight of the slat 42 including the reinforcing member 5 from becoming excessively large.

[0073] When the reinforcing member 5 is fixed to the slat 42 via an adhesive layer 6, the adhesive layer 6 preferably contains a cured product of an adhesive containing modified silicone.

[0074] According to this configuration, the modified silicone adhesive has excellent breaking elongation at low temperatures when cured and excellent durability against temperature changes, which allows the reinforcing member 5 and the slat 42 to be bonded together in an appropriate manner.

[0075] More preferably, the adhesive layer 6 contains a cured product of a two-component adhesive containing epoxy and modified silicone.

[0076] While epoxy adhesives have excellent adhesive strength and rigidity during bonding, they lack durability at low temperatures. Modified silicone adhesives are flexible at high and low temperatures. Therefore, a two-component adhesive containing epoxy and modified silicone can compensate for the brittleness of epoxy adhesives at low temperatures while ensuring rigidity and flexibility. This allows for more optimal bonding between the reinforcing member 5 and the slat 42.

[0077] Furthermore, if the reinforcing member 5 is made of fiber-reinforced plastic while the slats 42 are made of a metal such as aluminum, the difference in linear expansion between the slats 42 and the reinforcing member 5 is likely to be relatively large. However, an adhesive having such a configuration can suitably bond materials with a large difference in linear expansion, thereby more suitably bonding the slats 42 and the reinforcing member 5.

[0078] When the reinforcing member 5 is fixed to the slat 42 via the adhesive layer 6, it is preferable that an area of ​​the slat 42 that is equal to or greater than half of the slat 42 in the longitudinal direction be in contact with the adhesive layer 6.

[0079] According to this configuration, deformation of the shutter curtain 41 can be sufficiently suppressed.

[0080] The slat 42 is preferably provided with a cover member 7 that covers the reinforcing member 5 from the side facing the slat body 43 with the reinforcing member 5 sandwiched therebetween.

[0081] According to this configuration, the reinforcing member 5 can be hidden by the cover member 7, thereby improving the design.

[0082] The shutter device 3 includes a shutter curtain 1 having slats 42 provided with reinforcing members 5. The slats 42 provided with reinforcing members 5 are provided in the central region when the shutter curtain 41 is divided into three equal parts in the opening and closing direction.

[0083] According to this configuration, deformation of the shutter curtain 41 can be effectively suppressed, thereby reducing the amount of reinforcing member 5 used. This makes it possible to reduce the cost of manufacturing the shutter device 3 and save the effort of attaching the reinforcing member 5 to the slats 42.

[0084] The shutter device 3 has a pair of guide rails 33 that guide the movement of the shutter curtain 41. Both longitudinal ends of the slat body portion 43 are inserted into the respective guide rails 33 (respective guide grooves 34). The slat body portion 43 is preferably provided with a reinforcing member 5 extending in the longitudinal direction of the slat body portion 43 from a portion of the slat body portion 43 that is inserted into one of the guide rails 33 for a distance of at least one-third of the longitudinal dimension of the slat body portion 43, and with the reinforcing member extending in the longitudinal direction of the slat body portion 43 from a portion of the slat body portion 43 that is inserted into the other guide rail 33 for a distance of at least one-third of the longitudinal dimension of the slat body portion 43.

[0085] According to this configuration, the reinforcing member 5 can sufficiently suppress deformation of the shutter curtain 41 .

[0086] Furthermore, the longitudinal ends of the slats 42 are inserted into the guide rails 33 (guide grooves 34). If the shutter curtain 41 is significantly deformed due to wind pressure or the like, there is a risk that the slats 42 may come off the guide rails 33. However, with this configuration, the reinforcing member 5 can suppress deformation of the shutter curtain 41, and therefore the slats 42 can be prevented from coming off the guide rails 33.

[0087] Furthermore, with this configuration, the slat main body 43 is inserted into the guide groove 34 of the guide rail 33 together with the reinforcing member 5, and is therefore snugly housed in the guide groove 34. This makes it possible to prevent the ends of the slats 42 from shifting in the left-right direction, thereby preventing the slats 42 from bending and coming off the guide rail 33.

[0088] The slat body 43 is preferably made of aluminum.

[0089] According to this configuration, by using aluminum as the material for each slat body portion 43, it is possible to reduce the weight of the shutter curtain 41. By reducing the weight of the shutter curtain 41, it is possible to make it easier to open and close the shutter curtain 41.

[0090] On the other hand, because aluminum has a relatively low rigidity, if the slat main body 43 were made of aluminum, the slats 42 might be prone to bending due to wind pressure, etc. However, by reinforcing the slat main body 43 with the reinforcing member 5, it is possible to suppress bending of the slats 42.

[0091] Furthermore, the reinforcing member 5 of this embodiment is relatively lightweight. Therefore, the slat 42 can be reinforced while preventing the slat 42, including the reinforcing member 5, from becoming too heavy. In other words, the advantages of forming the slat main body 43 from aluminum can be maintained while minimizing the disadvantages of forming the slat main body 43 from aluminum.

[0092] <Modification of the first embodiment> A modification of the first embodiment will now be described.

[0093] In the first embodiment, the shutter device 3 is provided on the indoor side of the exterior wall portion 11, but this is not limited to this. The shutter device 3 may be provided on the outdoor side of the exterior wall portion 11, or may be provided inside the opening portion 12.

[0094] In the first embodiment, the opening and closing direction of the shutter curtain 41 is the vertical direction, but it may also be the left-right direction, for example. In this case, the longitudinal direction of the slats 42 is the vertical direction, and the longitudinal direction of the reinforcing members 5 provided on the slats 42 is the vertical direction.

[0095] In the first embodiment, the reinforcing member 5 is provided on the slat 42, but it may also be provided on an elongated member other than the slat 42. For example, the reinforcing member 5 may be provided on the baseboard 46, the winding shaft 32, etc. Furthermore, the reinforcing member 5 does not necessarily have to be provided on the opening / closing body. For example, the reinforcing member 5 may be provided on the guide rail 33, the upper frame 21 and the vertical frame 22 that constitute the opening frame 2, etc. Note that the elongated members provided with the reinforcing member 5 each correspond to a building material.

[0096] In the first embodiment, the vertical center of the slat 42's slat body 43 is curved in an arc shape that convexly faces the outside of the room, but the direction and shape of the curvature of the slat body 43 are not limited to this. The slat body 43 does not necessarily have to be curved. However, in order to make it easier to wind the shutter curtain 41 around the winding shaft 32, it is preferable that the curvature of the slat body 43 be the same as in the above embodiment.

[0097] In the first embodiment, the shutter device 3 includes the winding shaft 32, but the winding shaft 32 is not an essential component. When the opening 12 is in the open state, the shutter curtain 41 may be in a roll shape by itself or in a folded state.

[0098] In the above embodiment, the slat 42 having the reinforcing member 5 was provided at at least one of the following positions: a position where the distance in the opening / closing direction to the tip of the shutter curtain 41 is 1 / 3 of the opening dimension H1; a position where the distance in the opening / closing direction to the tip of the shutter curtain 41 is 1 / 2 of the opening dimension H1; and a position where the distance in the opening / closing direction to the tip of the shutter curtain 41 is 2 / 3 of the opening dimension H1; but the position in the opening / closing direction of the slat 42 having the reinforcing member 5 may be slightly deviated from these positions.

[0099] For example, a slat main body 43 whose distance to the tip of the shutter curtain 41 in the opening / closing direction is 1 / 3 of the opening dimension H1 and the slat main bodies 43 adjacent to the slat main body 43 in the opening / closing direction are collectively referred to as a "slat group G1," a slat main body 43 whose distance to the tip of the shutter curtain 41 in the opening / closing direction is 1 / 2 of the opening dimension H1 and the slat main bodies 43 adjacent to the slat main body 43 in the opening / closing direction are collectively referred to as a "slat group G2," and a slat main body 43 whose distance to the tip of the shutter curtain 41 in the opening / closing direction is 2 / 3 of the opening dimension H1 and the slat main bodies 43 adjacent to the slat main body 43 in the opening / closing direction are collectively referred to as a "slat group G3," in which case the reinforcing member 5 may be provided to a slat main body 43 belonging to any of the slat group G1, slat group G2, or slat group G3. In this case, the shutter curtain can be reinforced efficiently.

[0100] In the above embodiment, one slat 42 has one reinforcing member 5, but this is not limited to this. A plurality of reinforcing members 5 may be provided for one slat main body portion 43.

[0101] Second Embodiment A second embodiment of the present disclosure will be described below with reference to Figures 6 and 7. Differences from the first embodiment will be mainly described. Configurations similar to those in the first embodiment will be assigned the same reference numerals, and descriptions thereof may be omitted.

[0102] As shown in FIG. 6, in this embodiment, the opening provided in the building is an opening 112 provided in an exterior wall 111 as a large opening. The opening 112 is provided in the exterior wall 111, which is the exterior wall of a living room. A fitting 101 is provided in the opening 112. The fitting 101 includes an opening frame 102 and a roller blind device 103. Note that a "large opening" refers to an opening whose vertical dimension is at least 2400 mm or more, or whose horizontal dimension is at least 2700 mm or more.

[0103] The opening frame 102 is a frame body provided on the periphery of the opening 112. The opening frame 102 is made of wood, for example. The opening frame 102 has an upper frame 121 and a pair of left and right vertical frames 122.

[0104] The upper frame 121 is an elongated member extending in the left-right direction above the opening 112. The upper frame 121 is formed, for example, in the shape of a rectangular prism. Each vertical frame 122 is an elongated member extending in the up-down direction on both left-right end sides of the opening 112. Each vertical frame 122 is formed, for example, in the shape of a rectangular prism. The upper frame 121 and each vertical frame 122 each correspond to an elongated member.

[0105] The roller shade device 103 is provided in the opening 112. The roller shade device 103 has a case 137, a winding shaft 138 as a long member around which the screen 141 is wound, a pair of left and right guide rails 135, and the screen 141 as an opening / closing body. The opening direction of the screen 141 is upward. The closing direction of the screen 141 is downward. The opening and closing direction of the screen 141 is vertical.

[0106] The case 137 is a component that houses the screen 141. The case 137 is fixed to the upper frame 121, for example, by a single or multiple brackets B21 and a screw S21. The case 137 is formed, for example, in the shape of a substantially rectangular parallelepiped box. The material of the case 137 is, for example, a metal such as aluminum. However, the material of the case 137 is not limited to this and may be, for example, a resin.

[0107] The winding shaft 138 is a member around which the screen 141 is wound. The winding shaft 138 is provided inside the case 137. The winding shaft 138 is formed in a long cylindrical shape with its longitudinal direction perpendicular to the indoor / outdoor direction (more specifically, the left-right direction). The winding shaft 138 corresponds to a long member. The winding shaft 138 is provided so as to be rotatable about its central axis. The material of the winding shaft 138 is, for example, a metal such as aluminum. However, the material of the winding shaft 138 is not limited to this.

[0108] Each guide rail 135 is a member that guides the screen 141 when the screen 141 is opened or closed. Each guide rail 135 is fixed to each vertical frame 122, for example, by a single or multiple brackets B21. Each guide rail 135 is formed in an elongated shape with the vertical direction as the longitudinal direction. Each guide rail 135 corresponds to an elongated member. Each guide rail 135 is made of a metal such as aluminum. However, the material of each guide rail 135 is not limited to this. Each guide rail 135 has a guide groove 135a into which each left-right end of the screen 141 is inserted.

[0109] The screen 141 is an opening / closing body that opens and closes the opening 112 and opens and closes in a direction perpendicular to the indoor / outdoor direction (specifically, the up-and-down direction). One of the ends of the screen 141 in the opening / closing direction is connected to the winding shaft 138. The screen 141 is sandwiched in the left-right direction by each guide rail 135. The screen 141 has a sheet portion 142 and a weight bar 143.

[0110] The sheet portion 142 is a member that covers the opening. The sheet portion 142 is formed, for example, in the shape of a rectangular curtain. The sheet portion includes a fabric layer made of, for example, a woven or nonwoven fabric such as polyester resin, polyamide resin, cotton, or linen. However, the configuration of the sheet portion is not limited to this, and may be configured, for example, in a mesh shape. The sheet portion 142 may restrict or allow ventilation through the opening.

[0111] The weight bar 143 is connected to the lower end of the seat portion 142. The weight bar 143 is formed in an elongated shape with its longitudinal direction perpendicular to the indoor / outdoor direction (specifically, the left-right direction). The weight bar 143 corresponds to a long member. The material of the weight bar 143 is, for example, a metal such as aluminum. However, the material of the weight bar 143 is not limited to this. It is preferable that the density of the material of the weight bar 143 is greater than the density of the material of the seat portion 142.

[0112] The case 137, the winding shaft 138, and the screen 141 constitute roller shade units 137, 138, and 141. The roller shade units 137, 138, and 141 themselves have the function of covering the opening 112. In other words, the roller shade units 137, 138, and 141 are existing, completed products that can also be used by attaching them to the opening 112.

[0113] Here, a reinforcing member 5D is provided on the weight bar 143 (see FIG. 7). The reinforcing member 5D is provided, for example, on the outer surface of the weight bar 143. The reinforcing member 5D is fixed to the weight bar 143, for example, with an adhesive similar to that in the first embodiment.

[0114] Further, a reinforcing member 5E is provided on the winding shaft 138. The reinforcing member 5E is provided, for example, on the outer surface of the winding shaft 138. The reinforcing member 5E is fixed to the weight bar 143, for example, with an adhesive similar to that in the first embodiment. The weight bar 143 provided with the reinforcing member 5 and the winding shaft 138 provided with the reinforcing member 5 correspond to building materials.

[0115] Because the reinforcing member 5E is made of fiber-reinforced plastic, it is easy to make the reinforcing member 5E thin while maintaining the strength of the reinforcing member 5E. Therefore, by making the reinforcing member 5E thin, it is possible to prevent the reinforcing member 5E from interfering with the winding of the screen 141 around the winding shaft 138.

[0116] Furthermore, the reinforcing member 5D does not need to be provided over the entire left-right area of ​​the weight bar 143, but may be provided in only a partial left-right area of ​​the weight bar 143. The reinforcing member 5E does not need to be provided over the entire left-right area of ​​the winding shaft 138, but may be provided in only a partial left-right area of ​​the winding shaft 138.

[0117] Furthermore, the reinforcing member 5 does not need to be provided on both the weight bar 143 and the winding shaft 138. It is preferable that the reinforcing member 5 be provided on at least one of the weight bar 143 and the winding shaft 138.

[0118] <Effects of the second embodiment> The building material of this embodiment has the following advantages.

[0119] The roller shade device 103 has a screen 141 as an opening / closing body, and a winding shaft 138 as an elongated member around which the screen 141 is wound. The winding shaft 138 is provided with a reinforcing member 5E.

[0120] For example, when wind pressure acts on the screen 141, the screen 141 may deform in a wavy manner, and the winding shaft 138 may bend.

[0121] However, with this configuration, in the rolling screen device 103, deformation of the winding shaft 138 can be suppressed with a simple configuration.

[0122] Furthermore, in the roller shade device 103, the lightweight reinforcing member 5E can suitably suppress bending of the winding shaft 138. This prevents the weight of the reinforcing member 5E from interfering with the rotation of the winding shaft 138. This ensures stable operability when opening and closing the roller shade device 103.

[0123] The screen 141 has a sheet portion 142 and a weight bar 143 as a long member provided at the tip of the sheet portion 142, and the weight bar 143 is provided with a reinforcing member 5D.

[0124] If the sheet portion 142 is deformed by wind pressure or the like, there is a risk that the weight bar 143 will deform along with the sheet portion 142. However, with this configuration, the deformation of the weight bar 143 can be suitably suppressed with a simple configuration in the roller shade device. Furthermore, since the weight of the weight bar 143 including the reinforcing member 5D can be suppressed from becoming too heavy, it is possible to suppress a loss of operability when winding up the screen 141.

[0125] <Modification of the second embodiment>

[0126] In the second embodiment, the roller shade device 103 is provided inside the opening 112, but this is not limiting. The roller shade device 103 may be provided on the indoor side of the outer wall portion 111, or on the outdoor side of the outer wall portion 111.

[0127] In the second embodiment, the opening and closing direction of the screen 141 is the up-down direction, but it may be the left-right direction.

[0128] In the second embodiment, the reinforcing member 5 is provided on the winding shaft 138 and the weight bar 143, but it may also be provided on other long members. The reinforcing member 5 may be provided on, for example, the guide rail 135, the upper frame 121 and the vertical frame 122 that constitute the opening frame 102, etc. The long member provided with the reinforcing member 5 corresponds to a building material.

[0129] In the second embodiment, the roller shade device 103 has the winding shaft 138, but the winding shaft 138 is not an essential component. The roller shade device 103 is not limited to a winding type, and may be, for example, a folding type.

[0130] Third Embodiment A third embodiment of the present disclosure will be described below with reference to Figures 8 and 9. The description will focus on differences from the first embodiment. Configurations similar to those in the first embodiment will be given the same reference numerals, and descriptions thereof may be omitted.

[0131] As shown in FIG. 8, in this embodiment, the opening of the building is an opening 212 provided as a large opening in an exterior wall portion 211. The opening 212 is provided in the exterior wall portion 211, which is the outer wall portion of the living room. The vertical dimension of the opening 212 is, for example, 3000 mm. A fitting 201 is provided in the opening 12. The fitting 201 includes an opening frame 202, an opening / closing window 203, and a plurality of fixed windows 205.

[0132] The opening frame 202 is a frame body provided on the periphery of the opening 212. The opening frame 202 is configured, for example, by a framework of an upper frame 221 and a lower frame 223 that extend in the left-right direction, and a pair of vertical frames 222 that extend in the up-down direction. The opening frame 202 is formed, for example, from a metal such as aluminum. The upper frame 221, the vertical frames 222, and the lower frame 223 each correspond to an elongated member.

[0133] The opening / closing window 203 is disposed, for example, at the left end inside the opening frame 202. The multiple fixed windows 205 are disposed, for example, to the right of the opening / closing window 203 inside the opening frame 202. The number of fixed windows 205 is not particularly limited.

[0134] The opening frame 202 also has a long mullion 225 extending in the vertical direction. The mullion 225 corresponds to a long member. The mullion 225 is disposed, for example, between the opening / closing window 203 and the leftmost one of the multiple fixed windows 205. The right end of the mullion 225 is connected to the leftmost one of the multiple fixed windows 205. The upper end of the mullion 225 is connected to the upper frame 221. The lower end of the mullion 225 is connected to the lower frame 223.

[0135] The opening / closing window 203 has a shoji screen 231 and a screen door 235. The opening direction of the shoji screen 231 is to the right, and the closing direction of the shoji screen 231 is to the left. The opening and closing direction of the shoji screen 231 is to the left and right. The opening direction of the screen door 235 is to the left, and the closing direction of the screen door 235 is to the right. The opening and closing direction of the screen door 235 is to the left and right.

[0136] The shoji screen 231 is provided, for example, on the outside of the room relative to the screen door 235. The shoji screen 231 can be opened and closed in the left-right direction. The configuration of the shoji screen 231 is not particularly limited, but for example, it is made up of a rectangular glass panel (not shown) and a shoji frame (not shown) that is made up of a frame of long members and is provided on the periphery of the glass panel.

[0137] The screen door 235 is provided in a space surrounded by the upper frame 221, the lower frame 223, the left-hand one of the vertical frames 222 (sometimes referred to as the "left vertical frame 222A"), and the mullion 225. The screen door 235 is, for example, a pleated screen door. The screen door 235 has a mesh portion 236 and a movable frame 237.

[0138] The mesh portion 236 has, for example, a pleated shape. However, the shape of the mesh portion 236 is not limited to this and may have, for example, a roll shape. The left end of the mesh portion 236 is connected to the left vertical frame 222A, and the right end of the mesh portion 236 is connected to the movable frame 237.

[0139] The movable frame 237 has an elongated shape with the vertical direction as the longitudinal direction. The movable frame 237 corresponds to an elongated member. As shown in FIG. 9, the movable frame 237 has, for example, a storage frame 238 and a core material 239.

[0140] The storage frame 238 has an elongated shape with the vertical direction as the longitudinal direction. The storage frame 238 corresponds to an elongated member. The storage frame 238 is formed to have a hollow shape. The storage frame 238 is formed from a metal such as aluminum, for example.

[0141] The core material 239 is a member that reinforces the storage frame 238. The core material 239 is elongated with the vertical direction as the longitudinal direction. The core material 239 corresponds to an elongated member. The core material 239 is shaped like a rectangular plate. The core material 239 is housed inside the storage frame 238 and is fixed to the storage frame 238 by, for example, screws. The core material 239 is formed from a metal such as aluminum.

[0142] Additionally, an upper runner 241 is provided at the upper end of the mesh portion 236, and a lower runner 242 is provided at the lower end of the mesh portion 236. An upper screen rail 221a extending in the left-right direction is provided on the lower surface of the upper frame 221, and a lower screen rail 223a extending in the left-right direction is provided on the upper surface of the lower frame 223. The upper screen rail 221a is provided with a guide groove that opens downward and extends in the left-right direction, and the lower screen rail 223a is provided with a guide groove that opens upward and extends in the left-right direction. The upper runner 241 is inserted into the guide groove of the upper screen rail 221a, and the lower runner 242 is inserted into the guide groove of the lower screen rail 223a. The upper end of the mesh portion 236 engages with the upper screen rail 221a via the upper runner 241, and the lower end of the mesh portion 236 engages with the lower screen rail 223a via the lower runner 242. These allow the movable frame 237 to slide left and right relative to the opening frame 202.

[0143] When the movable frame 237 slides to the left, the mesh portion 236 is folded. When the movable frame 237 slides to the right, the mesh portion 236 is unfolded. The movable frame 237 can slide to the right until it contacts the mullion 225. This allows the screen door 235 to open and close the area of ​​the opening of the opening 212 to the left of the mullion 225.

[0144] Here, a reinforcing member 5F is provided on the movable frame 237 (see FIG. 9). The reinforcing member 5F is provided on, for example, a core material 239. The longitudinal direction of the reinforcing member 5F and the longitudinal direction of the movable frame 237 are approximately parallel. The reinforcing member 5F is housed inside a storage frame 238. This makes it possible to make the reinforcing member 5F less visible from the outside, thereby improving the design. The movable frame 237 on which the reinforcing member 5 is provided and the core material 239 on which the reinforcing member 5 is provided each correspond to building materials.

[0145] <Effects of the third embodiment> The building material of this embodiment has the following advantages.

[0146] The screen door 235 has a mesh part 236 and a movable frame 237 as a long member provided at the tip of the mesh part, and the movable frame 237 is provided with a reinforcing member 5F.

[0147] For example, if the mesh portion 236 is deformed by wind pressure or the like, the movable frame 237 may be deformed following the mesh portion 236.

[0148] However, with this configuration, deformation of the movable frame 237 in the screen door 235 can be suitably suppressed with a simple configuration.

[0149] Furthermore, the lightweight reinforcing member 5F can suitably suppress bending of the movable frame 237 of the screen door 235. Therefore, in the screen door 235, deformation of the movable frame 237 can be suppressed while ensuring operability when opening and closing.

[0150] The movable frame 237 has a storage frame 238 and a core member 239 as an elongated member stored inside the storage frame 238, and the core member 239 is provided with a reinforcing member 5F.

[0151] According to this configuration, the reinforcing member 5F can be hidden by the storage frame 238, so that the desired effect can be obtained while maintaining the design.

[0152] <Modification of the third embodiment> In the third embodiment, the opening and closing direction of the screen door 235 is the left-right direction, but it may also be, for example, the up-down direction.

[0153] In the third embodiment, the reinforcing member 5 is provided on the core member 239 of the movable frame 237, but it may be provided on an elongated member other than the core member 239.

[0154] For example, the reinforcing member 5 may be provided in the storage frame 238 of the movable frame 237. Alternatively, a long central crosspiece with its longitudinal direction extending in the up-down direction may be provided in the middle of the mesh section 236 in the opening / closing direction, and the reinforcing member 5 may be provided on the central crosspiece. This makes it possible to more effectively suppress bending of the mesh section 236 by the central crosspiece whose strength is increased by the reinforcing member 5. The storage frame 238 provided with the reinforcing member 5 and the central crosspiece each correspond to building materials.

[0155] When the screen door 235 is a roll type, a shaft may be provided which is connected to the base end of the mesh part 236, has a long shape with its longitudinal direction perpendicular to the opening / closing direction and the indoor / outdoor direction, and is for winding the mesh part 236, and the shaft may be provided with a reinforcing member 5. This makes it possible to prevent the roll shape of the mesh part 236 from collapsing due to the weight of the mesh part 236, etc. The shaft provided with the reinforcing member 5 corresponds to a building material.

[0156] Furthermore, the reinforcing member 5 does not necessarily have to be provided on the screen door 235. For example, the reinforcing member 5 may be provided on a long member that constitutes a shoji frame, or on the upper frame 221, vertical frame 222, lower frame 223, mullion 225, etc. that constitute the opening frame 202. Note that each of these long members on which the reinforcing member 5 is provided corresponds to a building material.

[0157] Although the embodiments of the building material of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments, and includes modifications, improvements, etc. within the scope of achieving the object of the present disclosure. Various modified examples and alterations that do not depart from the gist of the present disclosure are encompassed in the present disclosure.

[0158] For example, the types of buildings, openings, opening / closing bodies, etc. to which the building materials of the present disclosure are to be installed are not limited to those described in the above embodiments. For example, the building may be a house or a building. The openings are not limited to large openings. However, opening / closing bodies installed in large openings are easily bent by wind pressure, etc., and are therefore suitable as applications for the building materials of the present disclosure.

[0159] Furthermore, as described above, the reinforcing member does not necessarily have to be provided on the opening / closing body. The reinforcing member may be provided on a long member such as a guide rail, a frame material constituting an opening frame, or a stile material constituting a shoji screen. In particular, the opening frame provided at the opening of a large opening is suitable as a target for installing a reinforcing member because it is likely to deform along with the opening / closing body when the opening / closing body is deformed due to factors such as wind pressure during strong winds, load due to snow accumulation or load from upper floors, or earthquakes.

[0160] [Aspect 1] A building material to be installed in an opening in a building, comprising: a long elongated member; and a reinforcing member made of fiber-reinforced plastic and installed on the elongated member. [Aspect 2] 2. The building material according to claim 1, wherein the reinforcing member is made of carbon fiber reinforced plastic. [Aspect 3] 3. The building material according to aspect 2, wherein the carbon fibers constituting the carbon fiber reinforced plastic are oriented along the longitudinal direction of the elongated member. [Aspect 4] A building material according to aspect 2 or 3, wherein the carbon fiber that constitutes the carbon fiber reinforced plastic has a tensile modulus of elasticity of 230 GPa or more. [Aspect 5] 5. The building material according to any one of aspects 1 to 4, wherein the reinforcing member is fixed to the elongated member by at least one of fixing via an adhesive layer and fixing by caulking. [Aspect 6] 6. The building material of claim 5, wherein the reinforcing member is fixed to the elongated member via the adhesive layer, and the adhesive layer includes a cured product of an adhesive comprising a modified silicone. [Aspect 7] 7. The building material according to claim 6, wherein the adhesive layer comprises a cured product of a two-component adhesive comprising an epoxy and a modified silicone. [Aspect 8] A building material according to any one of aspects 5 to 7, wherein the reinforcing member is fixed to the elongated member via the adhesive layer, and an area of ​​the elongated member that is equal to or greater than half of the longitudinal direction of the elongated member is in contact with the adhesive layer. [Aspect 9] A building material according to any one of aspects 1 to 8, wherein the elongated member is provided with a cover member that covers the reinforcing member from the side facing the elongated member with the reinforcing member sandwiched therebetween. [Aspect 10] 10. The building material according to any one of aspects 1 to 9, wherein the building material is a slat of a shutter curtain and includes a slat body portion as an elongated member. [Aspect 11] A shutter device comprising a shutter curtain having the slats as a building material described in aspect 10, wherein, when the direction in which the shutter curtain opens and closes is defined as the opening and closing direction, the slats as the building material are arranged in at least the central region when the shutter curtain is divided into three equal parts in the opening and closing direction. [Aspect 12] Further, a pair of guide rails for guiding the movement of the shutter curtain are provided. The slat body portion has both longitudinal end portions inserted into the guide rails, A shutter device as described in aspect 11, wherein the slat main body portion is provided with a reinforcing member extending in the longitudinal direction of the slat main body portion from a portion of the slat main body portion that is inserted into one of the guide rails to a distance of at least 1 / 3 of the longitudinal dimension of the slat main body portion, and a reinforcing member extending in the longitudinal direction of the slat main body portion from a portion of the slat main body portion that is inserted into the other guide rail to a distance of at least 1 / 3 of the longitudinal dimension of the slat main body portion. [Explanation of symbols]

[0161] 3: shutter device, 5: reinforcing member, 6: adhesive layer, 7: cover member, 12, 112, 212: building opening, 21, 121, 221: upper frame (long member), 22, 122, 222: vertical frame (long member), 32, 138: winding shaft (building material and long member), 33: guide rail (long member), 41: shutter curtain, 42: slat (building material and long member), slat main body 43 (long member), 46: baseboard (long member), 143: weight bar (building material and long member), 223: lower frame (long member), 225: mullion (long member), 237: movable frame (building material and long member), 238: storage frame (long member), 239: core material (building material and long member).

Claims

1. A building material installed in an opening in a building, A long elongated member; a reinforcing member formed of fiber-reinforced plastic and provided on the elongated member; Building materials that include:

2. The building material according to claim 1 , wherein the reinforcing member is made of carbon fiber reinforced plastic.

3. The building material according to claim 2 , wherein the carbon fibers constituting the carbon fiber reinforced plastic are oriented along the longitudinal direction of the elongated member.

4. 4. The building material according to claim 2, wherein the carbon fiber that constitutes the carbon fiber reinforced plastic has a tensile modulus of elasticity of 230 GPa or more.

5. The building material according to any one of claims 1 to 3, wherein the reinforcing member is fixed to the elongated member by at least one of fixing via an adhesive layer and fixing by crimping.

6. the reinforcing member is fixed to the elongated member by the adhesive layer; The building material according to claim 5 , wherein the adhesive layer includes a cured product of an adhesive containing modified silicone.

7. The building material according to claim 6 , wherein the adhesive layer contains a cured product of a two-component adhesive comprising epoxy and modified silicone.

8. the reinforcing member is fixed to the elongated member by the adhesive layer; The building material according to claim 5 , wherein at least half of the longitudinal area of ​​the elongated member is in contact with the adhesive layer.

9. The building material according to any one of claims 1 to 3, wherein the elongated member is provided with a cover member that covers the reinforcing member from the side facing the elongated member with the reinforcing member sandwiched therebetween.

10. the building material is a slat of a shutter curtain, The building material according to any one of claims 1 to 3, comprising a slat body portion as an elongated member.

11. A shutter device comprising a shutter curtain having the slats as the building material according to claim 10, If the direction in which the shutter curtain opens and closes is defined as the opening and closing direction, The shutter device, wherein the slats are provided at least in a central region when the shutter curtain is divided into three equal parts in the opening and closing direction.

12. Further, a pair of guide rails for guiding the movement of the shutter curtain are provided. The slat body portion has both longitudinal end portions inserted into the guide rails, 12. The shutter device of claim 11, wherein the slat main body is provided with a reinforcing member extending in the longitudinal direction of the slat main body from a portion of the slat main body that is inserted into one of the guide rails, a distance of at least 1 / 3 of the longitudinal dimension of the slat main body, and a reinforcing member extending in the longitudinal direction of the slat main body from a portion of the slat main body that is inserted into the other guide rail, a distance of at least 1 / 3 of the longitudinal dimension of the slat main body.

Images