JP2022032648A - Composite film material - Google Patents

Abstract

To provide composite film material allowing adiabatic material to be accommodated between an outer film and an inner film to be difficult to shift from the outer film and the inner film.SOLUTION: A composite film material 1 is provided with: an outer film 2; an inner film 3 of which a peripheral edge part 3a is fixed on a peripheral edge part 2a of the outer film 2; adiabatic material 4 accommodated between the outer film 2 and the inner film 3; and a first mesh 5 of which at least a part is fixed on at least one of the inner film 3 and the outer film 2, which is placed between the adiabatic material 4 and the inner film 3 so as to contact the adiabatic material 4 and the inner film 3.SELECTED DRAWING: Figure 2

Description

The present invention relates to a composite membrane material.

Conventionally, composite membrane materials have been used for membrane-structured buildings such as air dome and tent. For example, the composite membrane material of Patent Document 1 includes an outer membrane, an inner membrane having a peripheral edge fixed to the peripheral edge of the outer membrane, and a heat insulating material accommodated between the outer membrane and the inner membrane. Have. The heat insulating material is adhered to the outer film and the inner film.

Special Table 2010-525188 Publication No.

However, for example, when the inner film or the outer film is made of a difficult-to-adhere material such as Teflon (registered trademark), the heat insulating material cannot be fixed to the inner film or the outer film. For example, when the intima and the outer membrane are greatly shaken due to wind and rain, the heat insulating material accommodated between the inner membrane and the outer membrane is displaced from the inner membrane and the outer membrane. In addition, there is a problem that the heat insulating material is displaced downward in the direction of gravity with respect to the inner film and the outer film due to the slope of the roof.

Therefore, the present invention has been made based on the above-mentioned problems, and an object thereof is a composite membrane material in which the heat insulating material accommodated between the outer membrane and the inner membrane is less likely to shift with respect to the inner membrane and the outer membrane. The purpose is to provide.

The composite membrane material according to the present invention includes an outer membrane, an inner membrane having a peripheral edge fixed to the peripheral edge of the outer membrane, a heat insulating material accommodated between the outer membrane and the inner membrane, and the inner inner membrane. A first, in which at least a part is fixed to at least one of the membrane and the outer membrane, and the heat insulating material and the inner membrane are arranged so as to be in contact with the heat insulating material and the inner membrane. Equipped with a mesh.

According to this configuration, at least a part of the first mesh is fixed to at least one of the intima and the outer membrane. Since this first mesh is placed between the heat insulating material and the inner membrane so as to be in contact with the heat insulating material and the inner membrane, the heat insulating material is housed between the outer membrane and the inner membrane. It gets caught in the hole of the first mesh. Therefore, even if the heat insulating material is not adhered to the inner film or the outer film, the heat insulating material is prevented from being displaced with respect to the inner film and the outer film.

In the above configuration, at least a part is fixed to at least one of the outer membrane and the inner membrane, and between the heat insulating material and the outer membrane so as to be in contact with the heat insulating material and the outer membrane. A second mesh may be further provided.

According to this configuration, at least a part of the second mesh is fixed to at least one of the outer membrane and the inner membrane. This second mesh is placed between the insulation and the outer membrane so that it is in contact with the insulation and the outer membrane, so that the insulation is housed between the outer and inner membranes. It also gets caught in the hole in the second mesh. Therefore, even if the heat insulating material is not adhered to the inner film or the outer film, the heat insulating material is further suppressed from being displaced with respect to the inner film and the outer film.

In the above configuration, the first mesh may be fixed to the endometrium by welding the peripheral edge portion to the peripheral edge portion of the inner membrane and the peripheral edge portion of the outer membrane.

According to this configuration, the melted inner and outer membranes are integrated through the holes in the first mesh, so that the first mesh can be easily fixed to the inner and outer membranes.

In the above configuration, the first mesh may be formed of a glass cloth.

According to this configuration, since the first mesh has heat resistance, the holes of the first mesh are less likely to be deformed when the first mesh is welded to the inner and outer films. Therefore, the first mesh can be reliably fixed to the intima and the outer membrane.

In the above configuration, the heat insulating material may be formed of glass wool.

According to this configuration, the fibers of glass wool are easily caught in the holes of the first and second meshes, so that the heat insulating material can be applied to the inner and outer films without fixing the heat insulating material to the inner and outer films. It is more suppressed from shifting.

According to the present invention, it is possible to provide a composite membrane material in which the heat insulating material accommodated between the outer membrane and the inner membrane is less likely to shift with respect to the inner membrane and the outer membrane.

It is a figure which shows typically the state which the composite film material which concerns on this embodiment is fixed to a support member. It is a partially enlarged view schematically enlarged by the composite membrane material which concerns on this embodiment.

Hereinafter, the composite membrane material according to the embodiment of the present invention will be described with reference to the drawings. However, each figure referred to below is for convenience of explanation, and shows simplified main components necessary for explaining the composite membrane material according to the embodiment of the present invention. Accordingly, the composite membrane material according to an embodiment of the present invention may include any component not shown in each of the figures referenced herein.

As shown in FIGS. 1 and 2, the composite membrane material 1 is fixed to a support member 10 of a membrane structure building such as an air dome or a tent, and includes an outer membrane 2, an inner membrane 3, and a heat insulating material 4. , A first mesh 5, a second mesh 6, and a long core material 38.

The outer film 2 and the inner film 3 are sheets in which at least one surface of a core material formed of a fiber fabric (fiber woven fabric, knitted fabric, etc.) is coated with a synthetic resin such as a fluororesin, a polyvinyl chloride resin, or a polyethylene resin. It is formed by, for example, a rectangular shape.

The outer film 2 and the inner film 3 may be formed of a resin film having no fiber woven fabric as a core material. In this case, the outer film 2 and the inner film 3 may be formed of, for example, the synthetic resin. Further, as the fluororesin, a tetrafluoroethylene-ethylene copolymer (ETFE) is used.

The outer membrane 2 is formed larger than the inner membrane 3. The end portion of the outer film 2 is folded back so as to include the core material 38. In this state, the peripheral edge portion 2a of the outer membrane 2 is fixed to the peripheral edge portion 3a of the inner membrane 3 by welding so that the space between the outer membrane 2 and the inner membrane 3 becomes airtight (see FIG. 2). As a result, the membrane body 21 composed of the outer membrane 2 and the inner membrane 3 has a peripheral portion 21a in which the outer membrane 2 and the inner membrane 3 are integrated, and a separated portion in which the outer membrane 2 and the inner membrane 3 are separated from each other. It consists of 21b. The separating portion 21b is filled with air. As a result, the film body 21 has a shape that bulges in the thickness direction of the outer film 2 and the inner film 3.

The method of fixing between the outer membrane 2 and the inner membrane 3 is not limited to welding. The method of fixing between the outer membrane 2 and the inner membrane 3 may be any method as long as the space between the outer membrane 2 and the inner membrane 3 can be made airtight. For example, when the outer film 2 and the inner film 3 are formed of a resin other than the difficult-to-adhere material, the outer film 2 and the inner film 3 may be fixed to each other by an adhesive.

The heat insulating material 4 is made of glass wool. The heat insulating material 4 is not limited to being formed of glass wool, and may be formed of any of the first mesh 5 and the second mesh 6 as long as they can be caught in the holes. The heat insulating material 4 may be formed of, for example, rock wool or cellulose fiber. The heat insulating material 4 is housed in the separating portion 21b of the film body 21.

The first mesh 5 and the second mesh 6 form a hole in which the heat insulating material 4 accommodated between the outer film 2 and the inner film 3 can be caught, and are formed of a heat-resistant material. Has been done. In this embodiment, the first mesh 5 and the second mesh 6 are formed of glass cloth. The first mesh 5 and the second mesh 6 are not limited to being formed by the glass cloth. The first mesh 5 and the second mesh 6 may be any as long as they form a hole in which the heat insulating material 4 can be hooked.

The first mesh 5 is arranged between the inner film 3 and the heat insulating material 4 so as to be in contact with the heat insulating material 4 and the inner film 3. The second mesh 6 is arranged between the outer film 2 and the heat insulating material 4 so as to be in contact with the heat insulating material 4 and the outer film 2. As a result, the heat insulating material 4 is accommodated in the separating portion 21b of the membrane body 21 in a state where the fibers of the glass wool are caught in the holes of the first mesh 5 and the holes of the second mesh 6.

The peripheral edges 5a and 6a of the first mesh 5 and the second mesh 6 are fixed to the peripheral edge 3a of the inner film 3 and the peripheral edge 2a of the outer film 2 by welding. Specifically, in the first mesh 5 and the second mesh 6, the outer membrane is in a state where the peripheral portions 5a and 6a are sandwiched between the peripheral portion 3a of the inner membrane 3 and the peripheral portion 2a of the outer membrane 2. By applying a hot press from the outside of the peripheral edge portion 2a of 2 and the peripheral edge portion 3a of the inner film 3, the peripheral edge portion 2a of the outer film 2 and the peripheral edge portion 3a of the inner film 3 are melted and fixed. In this state, the resin of the outer film 2 and the resin of the inner film 3 are integrated through the holes of the first mesh 5 and the holes of the second mesh 6. As a result, the first mesh 5 and the second mesh 6 are in a state of wrapping the heat insulating material 4.

In the example of FIG. 2, the peripheral edge portion 5a of the first mesh 5 and the peripheral edge portion 6a of the second mesh 6 are in the vicinity of the separated portion 21b between the peripheral edge portion 3a of the inner film 3 and the peripheral edge portion 2a of the outer film 2. However, it may be fixed to the entire peripheral edge portion 3a of the inner film 3 and the peripheral edge portion 2a of the outer film 2.

Further, the first mesh 5 may be fixed to the endometrium 3 at a position inside the peripheral edge portion 3a of the endometrium 3. In this case, the method for fixing the first mesh 5 is not limited to welding, and any method may be used as long as the first mesh 5 is prevented from moving with respect to the intima 3. For example, when the inner film 3 is made of a resin other than a difficult-to-adhere material, the first mesh 5 may be fixed to the inner film 3 by an adhesive. In this case, the first mesh 5 does not have to be made of a heat-resistant material. Further, the entire first mesh 5 may be fixed to the endometrium 3.

The second mesh 6 may be fixed to the outer membrane 2 at a position inside the peripheral edge portion 2a of the outer membrane 2. In this case, the method for fixing the second mesh 6 is not limited to welding, and any method may be used as long as the second mesh 6 is prevented from moving with respect to the outer film 2. For example, when the outer film 2 is made of a resin other than a difficult-to-adhere material, the second mesh 6 may be fixed to the outer film 2 by an adhesive. In this case, the second mesh 6 does not have to be made of a heat-resistant material. Further, the entire second mesh 6 may be fixed to the outer film 2. In the second mesh 6, for example, as shown in FIG. 1, when the composite membrane material 1 is used as a member constituting a part of the roof, the load of the heat insulating material 4 is likely to be applied to the inner membrane 3. If the composite membrane material 1 is used in the environment, it may be omitted.

As shown in FIG. 1, the composite film material 1 configured as described above is fixed to the support member 10 fixed to the structure 22 of the building.

In order to fix the composite film material 1 to the support member 10, first, a rectangular plate-shaped mounting plate 20 to which the peripheral edge portion 21a of the film body 21 is attached is provided at the upper end of the support member 10. A base rubber 26 for supporting the core material 38 contained by the end portion of the outer film 2 is fixed to the edge portion of the upper surface of the mounting plate 20.

Next, the peripheral edge portion 21a of the film body 21 is sandwiched between the mounting plate 20 and the substantially L-shaped cover rubber 25. In this state, the film fixing plate 28 is placed on the cover rubber 25, and the bolt 23 is inserted into the film fixing plate 28, the cover rubber 25, the peripheral edge portion 21a of the film body 21, and the mounting plate 20 and tightened with the nut 24. As a result, the peripheral edge portion 21a of the film body 21 is attached to the mounting plate 20, and the end portion of the outer film 2 containing the core material 38 is sandwiched between the cover rubber 25 and the base rubber 26. In this way, the composite film material 1 is fixed to the support member 10. The method of attaching the composite film material 1 to the mounting plate 20 is not particularly limited, and any method may be used as long as the composite film material 1 can be fixed to the support member 10.

Finally, the tension T is introduced into the inner membrane 3 and the outer membrane 2 by filling the space between the outer membrane 2 and the inner membrane 3 with air to inflate the composite membrane material 1.

In the composite film material 1, the peripheral edge portion 5a of the first mesh 5 is fixed to the inner film 3. Since the first mesh 5 is arranged between the heat insulating material 4 and the inner film 3 so as to be in contact with the heat insulating material 4 and the inner film 3, the heat insulating material 4 is arranged with the outer film 2 and the inner film 3. It is caught in the hole of the first mesh 5 while being accommodated between the two. Therefore, even if the heat insulating material 4 is not fixed to the inner film 3 or the outer film 2, the heat insulating material 4 is prevented from being displaced with respect to the inner film 3 and the outer film 2.

In the composite film material 1, the peripheral edge portion 6a of the second mesh 6 is fixed to the outer film 2. Since the second mesh 6 is arranged between the heat insulating material 4 and the outer film 2 so as to be in contact with the heat insulating material 4 and the outer film 2, the heat insulating material 4 is arranged with the outer film 2 and the inner film 3. It is also caught in the hole of the second mesh 6 while being accommodated between the two. Therefore, even if the heat insulating material 4 is not fixed to the inner film 3 or the outer film 2, the heat insulating material 4 is further suppressed from being displaced with respect to the inner film 3 and the outer film 2.

In the composite film material 1, the melted inner film 3 and outer film 2 are integrated through the holes of the first mesh 5 and the holes of the second mesh 6, so that the first mesh 5 and the second mesh 6 are combined. It can be easily fixed to the inner membrane 3 and the outer membrane 2.

In the composite film material 1, since the first mesh 5 and the second mesh 6 have heat resistance, the peripheral edge portion 5a of the first mesh 5 and the peripheral edge portion 6a of the second mesh 6 are used as the inner film 3. When welding to the peripheral edge portion 3a and the peripheral edge portion 2a of the outer film 2, the holes in the first mesh 5 and the holes in the second mesh 6 are less likely to be deformed. Therefore, the first mesh 5 and the second mesh 6 can be reliably fixed to the inner film 3 and the outer film 2.

In the composite film material 1, the fibers of glass wool are easily caught in the holes of the first mesh 5 and the holes of the second mesh 6, so that the heat insulating material 4 is heat-insulated without being fixed to the inner film 3 or the outer film 2. The material 4 is less likely to shift with respect to the inner film 3 and the outer film 2.

In the composite film material 1, the peripheral edge portion 5a of the first mesh 5 and the peripheral edge portion 6a of the second mesh 6 are fixed to both the peripheral edge portion 2a of the inner film 2 and the peripheral edge portion 3a of the outer film 3. (See FIG. 2), may be fixed to only one of the inner membrane 2 and the outer membrane 3. Specifically, the peripheral edge portion 5a of the first mesh 5 may be fixed only to the inner film 3, and the second mesh 6 may be fixed only to the outer film 2. Further, the peripheral edge portion 5a of the first mesh 5 and the peripheral edge portion 6a of the second mesh 6 may be fixed only to the inner film 3 or may be fixed only to the outer film 2.

1 Composite membrane 2 Outer membrane 2a Peripheral part 3 Inner membrane 3a Peripheral part 4 Insulation material 5 First mesh 5a Peripheral part 6 Second mesh

Claims (5)

With the adventitia
An intima in which the peripheral edge is fixed to the peripheral edge of the outer membrane,
A heat insulating material accommodated between the outer membrane and the inner membrane,
At least a part thereof is fixed to at least one of the inner membrane and the outer membrane, and the heat insulating material and the inner membrane are arranged so as to be in contact with the heat insulating material and the inner membrane. A composite membrane material comprising 1 mesh. At least a part thereof is fixed to at least one of the outer membrane and the inner membrane, and the heat insulating material and the outer membrane are arranged so as to be in contact with the heat insulating material and the outer membrane. Further equipped with 2 meshes,
The composite film material according to claim 1. The first mesh is fixed to the endometrium by welding the peripheral edge portion to the peripheral edge portion of the inner membrane and the peripheral edge portion of the outer membrane.
The composite film material according to claim 1. The first mesh is formed of a glass cloth.
The composite film material according to claim 3. The insulation is made of glass wool,
The composite film material according to any one of claims 1 to 4.

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