sash

Abstract

To provide a sash having a porous elastic member which can be attached to its mating member without being restricted by the shape thereof and which can suppress internal dew condensation of a building.SOLUTION: A sash has a metal frame to be attached within an opening of a building, and a porous elastic member to be placed in contact with the indoor side of the metal frame in such a manner of being invisible from the outside, in which the porous elastic member has a sheet-like shape with a thickness of 1 mm or more and a 25% compressive hardness measured in accordance with JIS K 6767:1999 of 3.9 kPa to 62 kPa or less. An adhesive layer is preferably formed on at least one surface of the porous elastic member.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a sash.

Background Art

[0002] As a fitting attached to an opening of a building, a sash having a metal frame such as an aluminum frame is known. In order to enhance the heat insulation property of the sash, a configuration has been proposed in which a separate resin member is disposed at a location where the aluminum frame contacts a member disposed inside the building (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The technique disclosed in Patent Document 1 connects a shoji opening / closing member provided on the indoor side to an aluminum profile on the outdoor side via a support member made of a resin material. By the above, the heat insulation property can be enhanced and the occurrence of dew condensation can be suppressed. However, the support member is a hard synthetic resin formed by extrusion molding according to the shape of the member to be connected. For this reason, it is necessary to hold a plurality of support members according to the shape of the member to be connected, and it is also necessary to consider a new shape every time the specification is changed. In addition to the above, there has also been a problem that internal dew condensation occurs due to contact between the aluminum frame and the building frame body made of wood or the like at a location where they are not visually recognizable from the outside, which causes corrosion of the building.

[0005] The present disclosure has been made in view of the above, and an object thereof is to provide a sash having a porous elastic member that can be attached without being restricted by the shape of the member to be attached and that can suppress internal dew condensation in a building.

Means for Solving the Problems

[0006] A sash having a metal frame attached to an opening of a building and a porous elastic member that abuts against the indoor-side surface of the metal frame and is arranged so as not to be visible from the outside. The porous elastic member has a sheet-like shape with a thickness of 1 mm or more, and the porous elastic member has a 25% compression hardness measured in accordance with JIS K 6767:1999 of 3.9 kPa or more and 62 kPa or less.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Mode for Carrying Out the Invention

[0008] The sash according to the present embodiment is a frame that constitutes a part of a fitting attached to an opening of a building. The sash has a metal frame and a porous elastic member that abuts against the indoor-side surface of the metal frame and is arranged so as not to be visible from the outside.

[0009] <Fitting> FIG. 1 is a front view of a fitting 100 as seen from the indoor side of a building. As shown in FIG. 1, the fitting 100 has a lower frame 10a, an upper frame 10b, a sash 10 formed by framing left and right vertical frames 10c and 10d in a rectangle, and a pair of inner shutters 21 and outer shutters 22. In this specification, the “looking direction” means the surface direction of the inner shutters 21 and the outer shutters 22, and the “looking-in direction” means the thickness direction of the inner shutters 21 and the outer shutters 22.

[0010] The sash 10 is attached to an opening of a building. The sash 10 is fixed to the vertical frames 10c and 10d by butting the ends of the upper frame 10b and the lower frame 10a against them with a fixture such as a screw. The sash 10 has a metal frame 110 made of a metal such as aluminum. The detailed configuration of the sash 10 will be described in detail later by taking the lower frame 10a as an example.

[0011] The sash 10 holds the inner shutter 21 and the outer shutter 22 within the frame. The inner shutter 21 and the outer shutter 22 are a two - layer sliding window that can slide left and right in the finding direction with respect to the sash 10. The shutter located on the indoor side is called the inner shutter 21, and the shutter located on the outdoor side is called the outer shutter 22. The inner shutter 21 and the outer shutter 22 can be locked by a crescent lock 31. In the present embodiment, on the outdoor side of the outer shutter 22, a screen door 23 having an optional net 23a is provided. The screen door 23 is held within the sash 10 so as to be slidable left and right in the finding direction.

[0012] The configurations of the inner shutter 21 and the outer shutter 22 will be described below with reference to FIG. 2. FIG. 2 is a view showing an enlarged view of the vicinity of the lower frame 10a in the cross - sectional view taken along line A - A of FIG. 1. As shown in FIGS. 1 and 2, the inner shutter 21 has a lower frame 21a and a multilayer glass 21c housed in a rectangular - framed body formed by an upper frame, vertical frames, and a mating frame 30. The outer shutter 22, similar to the inner shutter 21, has a multilayer glass 22c housed in a rectangular - framed body including a lower frame 22a. The inner shutter 21 and the outer shutter 22 are engaged by a smoke - return portion 32 formed on the mating surface of the mating frame 30.

[0013] At the lower ends of the inner shutter 21 and the outer shutter 22, door wheels 21b and 22b are respectively provided. The door wheels 21b and 22b are, for example, resin - made door wheels. The door wheels 21b and 22b are rotatably attached to the inner shutter 21 and the outer shutter 22. The door wheels 21b and 22b can respectively run on inner rail portions 112 and outer rail portions 113 formed on the lower frame 10a, which will be described later.

[0014] (Sash) The sash 10 is, for example, an aluminum - resin composite sash having a metal frame 110 and a resin member 111. By using an aluminum - resin composite sash as the sash 10, the heat insulation performance and dew - proof performance of the fitting 100 can be improved. The sash 10 is not limited to the above - mentioned aluminum - resin composite sash 10, and depending on the use of the fitting 100, a sash having only the metal frame 110 may be used.

[0015] The details of the structure of the sash 10 will be described below by taking the lower frame 10a as an example. As shown in FIG. 2, on the upper part of the lower frame 10a, inner rail portions 112 and outer rail portions 113 on which the door wheels 21b and 22b can run are provided along the longitudinal direction of the lower frame 10a. The inner rail portions 112 and the outer rail portions 113 are formed, for example, by protruding a part of a metal frame 110 upward along the longitudinal direction of the lower frame 10a.

[0016] The metal frame 110 is formed, for example, by extrusion molding an aluminum material. The metal frame 110 has, for example, a plurality of engaging portions and is arranged in engagement with a resin member 111. A contact portion 110a that contacts the building body 3 is formed on a part of the metal frame 110.

[0017] The contact portion 110a is a surface formed along the finding direction on the indoor side of the lower frame 10a. The contact portion 110a is arranged to face the edge portion of the building body 3 that constitutes the opening of the building. Therefore, the contact portion 110a is arranged so as not to be visually recognized from the outside. The contact portion 110a is configured as a part of the metal frame 110, and a part of the metal frame 110 is arranged outdoors. For this reason, when the outside air temperature is transmitted to the building body 3 through the contact portion 110a, depending on the temperature difference between the inside and outside, the air containing water vapor inside the building body 3 moves. Then, when the temperature of the moved air drops, internal condensation may occur inside the building body 3. When internal condensation occurs, it causes corrosion of the building. In the present embodiment, a porous elastic member 1 is arranged on the surface of the contact portion 110a that contacts the building body 3, which is the indoor side surface of the contact portion 110a, so as not to be visually recognized from the outside. Thereby, the transmission of the outside air temperature to the building body 3 through the contact portion 110a is suppressed. Therefore, the occurrence of internal condensation is suppressed. The configuration of the porous elastic member 1 will be described in detail later.

[0018] The resin member 111 is formed, for example, of a synthetic resin. As shown in FIG. 2, the resin member 111 is configured to have a plurality of hollow structures inside. Since the resin member 111 has a hollow structure, it becomes difficult for the outdoor temperature to be transmitted more into the room, and the heat insulation property of the fixture 100 can be improved.

[0019] As shown in FIG. 2, the resin member 111 has an angle portion 111a that extends along the upper surface of the housing 3 toward the indoor side of the lower frame 10a. The angle portion 111a is fixed to the housing 3 by a fixture such as a screw (not shown). The fixtures are provided at predetermined intervals in the longitudinal direction of the lower frame 10a. The end of the angle portion 111a is covered by the corner cap 11. By using a resin with a low thermal conductivity compared to metals such as aluminum as the angle portion 111a, the generation of dew condensation on the angle portion 111a is suppressed.

[0020] [Porous elastic member] The porous elastic member 1 is disposed on the indoor side surface of the metal frame 110. The porous elastic member 1 is disposed in contact with the indoor side surface of the contact portion 110a. The porous elastic member 1 only needs to be disposed in contact with the indoor side surface of the contact portion 110a and does not need to be in contact with the housing 3. The porous elastic member 1 is a member having a sheet-like shape with a thickness of 1 mm or more. The 25% compression hardness of the porous elastic member 1 measured in accordance with JIS K 6767:1999 is 3.9 kPa or more and 62 kPa or less. With the above configuration of the porous elastic member 1, internal dew condensation of the housing 3 can be prevented, and the porous elastic member 1 can be arbitrarily deformed and disposed in contact with the contact portion 110a regardless of the shape of the contact portion 110a.

[0021] As a member that contacts the contact portion 110a for the purpose of preventing internal dew condensation, it is also conceivable to use a resin member formed of a synthetic resin such as polyvinyl chloride. The resin member is formed into a shape that fits with the contact portion 110a according to the shape of the contact portion 110a, for example, and used. When using the above resin member, cutting to a specified dimension is required in advance, and it is necessary to have a plurality of resin members corresponding to the set length as work-in-progress items. In addition to the above, since it is necessary to make the resin member and the contact portion 110a have a complicated shape due to the fitting shape, the cost increases. Furthermore, when the shape of the contact portion 110a is changed, the resin member also needs to be changed according to the changed shape. The porous elastic member 1 according to the present embodiment has various advantages compared to the case of using a resin member such as the above-mentioned PVC.

[0022] The porous elastic member 1 is configured to have sponge-like fine pores. Since the porous elastic member 1 is porous with fine pores, preferable heat insulation properties can be obtained. Such a porous elastic member 1 is formed of, for example, a foamed resin. The foamed resin is not particularly limited, and examples thereof include polyolefin resins such as polyethylene resin and polypropylene resin, and foams of synthetic resins such as vinyl chloride. These foamed resins may be used alone or in combination of two or more. The foamed resin as the porous elastic member 1 has, for example, a thermal conductivity of about 0.03 W / m·K or less. This is a considerably lower value compared to about 0.17 W / m·K, which is the thermal conductivity of, for example, polyvinyl chloride, conventionally used for heat insulation. Therefore, the porous elastic member 1 formed of the foamed resin has preferable heat insulation properties, and can preferably suppress the transmission of the outdoor temperature to the housing 3 through the contact portion 110a.

[0023] The porous elastic member 1 is preferably deformable from a scroll-like shape as shown in FIG. 3 to a sheet-like shape when it is arranged in contact with the metal frame 110. Thereby, the porous elastic member 1 can be easily constructed by bringing the scroll-shaped porous elastic member 1 to the site and cutting it to an appropriate length. Also, setup such as pre-sizing cutting becomes unnecessary.

[0024] As shown in FIG. 3, it is preferable that the porous elastic member 1 has an adhesive layer formed on at least one surface, i.e., surface 1a. By bringing the surface 1a of the porous elastic member 1 having the adhesive layer into contact with the contact portion 110a, the porous elastic member 1 can be easily attached to the contact portion 110a for construction. The adhesive for forming the adhesive layer is not particularly limited, and a known adhesive for adhesive tape can be used. For example, acrylic resin adhesives, natural rubber or synthetic rubber adhesives, block copolymer adhesives such as styrene-butadiene-styrene block copolymers, styrene-isoprene-styrene block copolymers and hydrogenated products thereof, polyvinyl ether resin adhesives, silicone resin adhesives, etc. can be mentioned. These adhesives may be used alone or in combination of two or more.

[0025] The adhesive layer of the porous elastic member 1 may also be provided on another surface, for example, surface 1b in FIG. 3. The adhesive layer formed on the at least one surface is, for example, covered with a release material. Thereby, the porous elastic member 1 can be formed into a roll shape and easily peeled off and deformed into a sheet shape. The release material is not particularly limited, and a known release material having appropriate flexibility and followability can be used.

[0026] The 25% compression hardness of the porous elastic member 1 measured in accordance with JIS K 6767:1999 is 3.9 kPa or more and 62 kPa or less. By setting the 25% compression hardness of the porous elastic member 1 within the above range, the porous elastic member 1 can be arbitrarily deformed according to the shape of the contact portion 110a. Thereby, the porous elastic member 1 can be arranged regardless of the shape of the contact portion 110a. In addition to the above, it is not necessary to provide a special shape such as a fitting shape on the contact portion 110a, and for example, it can be made into a planar shape, so that the manufacturing cost of the fixture 100 can be reduced.

[0027] When the 25% compression hardness of the porous elastic member 1 is less than 3.9 kPa, the preferable heat insulation property of the porous elastic member 1 cannot be obtained. In addition to the above, it is difficult to linearly attach the porous elastic member 1, and the workability is deteriorated. When the 25% compression hardness exceeds 62 kPa, it is difficult to deform the porous elastic member 1 into a roll shape.

[0028] [25% compression hardness] The 25% compression hardness of the porous elastic member 1 is measured as follows, for example. First, a test piece is formed into a rectangular parallelepiped with a length of 50 mm × a width of 50 mm × a thickness of 25 mm. The number of test pieces is three. A test device that can smoothly move two parallel plates larger than each side of the test piece in a direction perpendicular to the surface by a motor or manually and can measure the displacement amount and the load is used for the measurement. The maximum load during the test is within the range of 15 to 85% of the measurable load. Using the above test device, the test piece is placed between the parallel plates, compressed by 25% of the initial thickness at a speed of 10 mm / min, stopped, and the load after 20 seconds is measured. Using the measured load (P), the 25% compression hardness is calculated by the following formula (1). The average value measured by three test pieces is used as the value of the 25% compression hardness. H (compression hardness) = P (load) / W (width of test piece: mm) × l (length of test piece: mm) ···(1)

[0029] The thickness of the porous elastic member 1 is 1 mm or more. Thereby, the effect of preventing internal condensation of the lower frame 10a is preferably obtained. In addition to the above, appropriate rigidity of the porous elastic member 1 is obtained, and the workability is improved.

[0030] As the porous elastic member 1, commercially available products can be used. For example, Softlon IF35 (manufactured by Sekisui Chemical Co., Ltd.), Softlon FR-ND #3002 (manufactured by Sekisui Chemical Co., Ltd.), Softlon (IF) SX15 (manufactured by Sekisui Chemical Co., Ltd.), Epot Sealer (manufactured by Nitto Denko Corporation), Kanelite Foam (manufactured by Kaneka Corporation), etc. can be mentioned.

[0031] <Sash construction method> The construction method of the sash 10 according to this embodiment includes a step of deforming the porous elastic member 1 from the scroll-like shape shown in FIG. 3 into a sheet-like shape, a step of cutting the porous elastic member 1 deformed into the sheet-like shape to a predetermined length, and a step of bringing the porous elastic member 1 into contact with and attaching it to the contact portion 110a of the metal frame 110.

[0032] The step of deforming the porous elastic member 1 from the scroll-like shape into the sheet-like shape may be performed independently. In addition to the above, while deforming a part of the porous elastic member 1 from the scroll-like shape into the sheet-like shape, the surface on which the adhesive layer of the porous elastic member 1 is formed may be brought into contact with and attached to the metal frame 110.

[0033] The step of cutting the porous elastic member 1 deformed into the sheet-like shape to a predetermined length is a step of cutting the porous elastic member 1 according to the size of the contact portion 110a with which the porous elastic member 1 comes into contact. In this step, the size of the contact portion 110a may be measured in advance, and the porous elastic member 1 may be cut to a predetermined length according to the measured length. In addition to the above, the end of the porous elastic member 1 partially attached to the contact portion 110a may be cut to a predetermined length according to the size of the contact portion 110a.

[0034] The step of bringing the porous elastic member 1 into contact with and attaching it to the metal frame 110 is a step of bringing the porous elastic member 1 into contact with and attaching it to the indoor-side surface of the contact portion 110a of the metal frame 110. This step may be performed simultaneously with the step of deforming the porous elastic member 1 from the scroll-like shape into the sheet-like shape as described above. In addition to the above, the porous elastic member 1 cut according to the size of the contact portion 110a may be brought into contact with and attached to the indoor-side surface of the contact portion 110a.

[0035] The present disclosure is not limited to the above embodiment, and deformations, improvements, etc. are included in the present disclosure. In the above embodiment, the fitting 100 is described as a sliding window having an inner shutter 21 and an outer shutter 22. It is not limited to the above. The porous elastic member of the present disclosure can also be applied to windows and doors other than sliding windows, such as fixed windows.

[0036] In the above embodiment, the porous elastic member 1 has been described as being disposed between the metal frame 110 and the housing 3 in the lower frame 10a. However, the present invention is not limited to the above. The porous elastic member may be disposed in contact with the indoor-side surface of the metal frame in the upper frame 10b, the vertical frames 10c and 10d.

[0037] In the above embodiment, the porous elastic member 1 has been described as having an adhesive layer formed on at least one surface. However, the present invention is not limited to the above. The method of disposing the porous elastic member 1 in contact with the contact portion 110a is not limited to the one using the adhesive layer. For example, an adhesive may be separately applied to the porous elastic member 1 for adhesion, or the porous elastic member 1 may be fixed to the contact portion 110a by a fixture or the like.

Explanation of Reference Numerals

[0038] 1 Porous elastic member, 10 Sash, 110 Metal frame

Claims

1. A metal frame mounted on an opening of a building, and a porous elastic member that abuts against the indoor-side surface of the metal frame and is arranged so as not to be visible from the outside. The porous elastic member has a sheet-like shape with a thickness of 1 mm or more. The porous elastic member is a sash in which the 25% compression hardness measured in accordance with JIS K 6767:1999 is 3.9 kPa or more and 62 kPa or less.

2. The sash according to claim 1, wherein an adhesive layer is formed on the surface of the porous elastic member that abuts against the metal frame.

3. The sash according to claim 1 or 2, wherein the porous elastic member is formed of a foamed resin.

4. A porous elastic member used for the sash according to any one of claims 1 to 3.

5. A step of deforming the porous elastic member from a roll shape to the sheet-like shape, A step of cutting the porous elastic member to a predetermined length, A method for installing the sash according to any one of claims 1 to 3, including a step of bringing the porous elastic member into contact with the metal frame and attaching it.

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