JPH0620802U - Membrane fastening structure of membrane structure - Google Patents

Abstract

(57) [Summary] [Purpose] To simplify the sealing structure of the membrane fastening part of the membrane structure. [Structure] The end portion of the membrane 38 is folded back so as to extend to one side of the support portion 30. Of the folded-back portion, the extended end is the extended film 36a and the folded-back starting point is the bag-shaped portion 38a.
And the portion Q1 excluding 38a is bonded to the portion of the membrane 38 facing this portion Q1. Similarly, the other film 40 is extended to the film 36b and the bag portion.
Forming 40a. The rope 40 is inserted through the bag portions 38a and 40a to form roped edges on the membranes 38 and 40. The membrane 38 is locked between the retainer 32 and the support 30 and the membrane 40 is retained between the retainer 34 and the support 30 via the roped edge. Then, one end and the other end of the covering film 36c are connected to the extending films 36a and 36b. The purpose can be achieved by covering the pressers 32 and 34 with these films 36a to 36c.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a membrane fastening structure for a membrane structure.

[0002]

[Prior art]

 Conventionally, a membrane structure has been proposed in which a membrane is fixed to a membrane supporting portion such as a steel frame and constructed. FIG. 6 is a sectional view schematically showing a conventional membrane fastening structure in a membrane structure.

The membrane fastening structure shown in FIG. 1 includes a membrane support portion 10, membrane retainers 12 and 14, and a cover portion 16. A membrane retainer 12 and a membrane retainer 14 are provided in parallel with the membrane supporting portion 10, and one membrane 18 arranged on one side of the membrane supporting portion 10 is locked between the membrane supporting portion 10 and the membrane retainer 12. At the same time, the other membrane 20 arranged on the other side of the membrane support 10 is locked between the membrane support 10 and the membrane retainer 14.

In locking the membrane 18, the end of the membrane 18 is folded back to form a bag-shaped portion 18a, and the rope 22 is inserted into the bag-shaped portion 18a. Make up a roped edge. With the rope 18 of the membrane 18 engaged with the membrane retainer 12 and the membrane 18 sandwiched between the membrane retainer 12 and the membrane support portion 10, the membrane retainer 12 is fixed by the bolts 24 and the nuts 26. To conclude. Thereby, the membrane 18 is locked between the membrane retainer 12 and the membrane supporting portion 10.

When locking the membrane 20, as in the case of the membrane 18, the end of the membrane 20 is folded back to form the bag-shaped portion 20a, and the rope 22 is inserted into the bag-shaped portion 20a. The bag-shaped portion 20a and the rope 22 form a roped edge. Then, while the rolled edge of the membrane 20 is engaged with the membrane retainer 14 and the membrane 20 is sandwiched between the membrane retainer 14 and the membrane supporting portion 10, the membrane retainer 14 is fixed by the bolt 24 and the nut 26. To conclude. A cushioning material 28 is provided between the locked membranes 18 and 20 and the membrane supporting portion 10.

The cover portion 16 includes a mounting portion 16a, a gasket 16b, and cover films 16c and 16d. The attachment portion 16a is fixed to the membrane support portion 10 between the membrane retainers 12 and 14, and the gasket 16b is fitted and fixed to the attachment portion 16a. Then, one end side of the covering film 16c is sandwiched between the film 18 and the film retainer 12 and locked, and the other end side of the covering film 16c is fitted into the gasket 16b and locked. Further, one end side of the covering film 16d is sandwiched between the film 20 and the film retainer 14 and locked, and the other end side of the covering film 16d is fitted into the gasket 16b and locked. By covering the membrane retainers 12 and 14 with the cover portion 16 in this manner, it is possible to prevent rain and wind from entering the inside of the membrane structure from the membrane retainers 12 and 14.

[0007]

[Problems to be solved by the device]

 However, in the above-described conventional membrane fastening structure, the number of constituent parts of the cover portion 16 is large, so that the cost is high and the mounting work is troublesome.

An object of the present invention is to provide a membrane fastening structure in which the structure of the cover portion is further simplified in order to solve the above-mentioned conventional problems.

[0009]

[Means for Solving the Problems]

 In order to achieve this object, the membrane fastening structure of the membrane structure of the first invention is a membrane supporting part, a first and a second membrane retainer provided in parallel with the membrane supporting part, and these membrane retainers. A membrane, which is disposed on one side of the membrane supporting portion and is locked between the membrane supporting portion and the first membrane retainer, and the other membrane disposed on the other side of the membrane supporting portion. Is locked between the membrane support part and the second membrane retainer, and the cover part is extended to one side of the membrane support part and locked between the first membrane retainer and one of the membranes. The first extension film, the second extension film extended to the other side of the membrane support part and locked between the second membrane retainer and the other membrane, and one end of the first extension film A covering film connected to the film and having the other end connected to the second extending film.

Further, the membrane fastening structure of the membrane structure of the second invention comprises a membrane supporting portion, a membrane retainer provided on the membrane supporting portion, and a covering portion of the membrane retainer, and the membrane end of the membrane is attached to the membrane supporting portion. And the membrane is extended from the membrane supporting portion by being locked between the membrane retainer and the covering portion fixes one portion to the membrane supporting portion on the side where the membrane is locked and the other portion to the membrane supporting portion. A cover plate extending toward the extended side of the membrane and facing the extended portion of the membrane, and a seal provided between the other portion of the cover plate and the extended portion of the membrane. Is characterized by.

[0011]

[Action]

 According to the first and second inventions having such a configuration, the number of constituent parts of the cover portion is smaller than in the conventional case.

[0012]

【Example】

 Hereinafter, embodiments of the invention will be described with reference to the drawings. It should be noted that the drawings are only schematically shown so that the device can be understood, and therefore the device is not limited to the illustrated examples.

FIG. 1 and FIG. 2 are a sectional view and a plan view schematically showing a main part configuration of an embodiment of the first invention. In FIG. 2, in order to facilitate understanding of the drawing, a part of the configuration is cut out and the cover film 36c and the cushioning material 48 (see FIG. 1) are omitted.

As also shown in these figures, the membrane fastening structure of this embodiment comprises a membrane support portion 30, first and second membrane retainers 32 and 34, and a cover portion 36.

The first and second membrane retainers 32 and 34 are provided in parallel with the membrane supporting portion 30, and the one membrane 38 disposed on one side of the membrane supporting portion 30 is provided with the membrane supporting portion 30 and the first membrane 38. It is locked between the membrane support 32 and the other membrane 40 disposed on the other side of the membrane support 30 between the membrane support 30 and the second membrane support 34. The cover portion 36 has first and second extension films 36a and 36b and a cover film 36c. The first extending membrane 36a is extended to one side of the membrane supporting portion 30 and is locked between the first membrane retainer 32 and the one membrane 38, and the second extending membrane 36b is formed. It extends to the other side of the support portion 30 and is locked between the second membrane retainer 34 and the other membrane 40. Then, one end of the covering film 36c is connected to the first extending film 36a, and the other end of the covering film 36c is connected to the second extending film 36b.

In this embodiment, in order to simplify the assembling work of the cover portion 16, one membrane 38 and the first extension membrane 36a are integrally formed in advance, and the other membrane 40 and the second extension membrane 36a are formed. The extension film 36b is previously integrally formed.

Separately separated one membrane 38 and the first extension membrane 36a are prepared, and these membranes 38 and 36a are integrated by heat welding, sewing, adhesive or any other suitable connecting means. Although it may be bonded, the first extension film 36a is formed by utilizing a part of the one film 38 here. Specifically, one of the membranes 38 is a glass fiber cloth whose surface is coated with Teflon (trade name of DuPont), and the end portion of the membrane 38 is extended to one side of the membrane supporting portion 30. Fold it back to let it out. Of the folded-back portion, the portion extended to one side of the membrane supporting portion 30 is used as the first extending membrane 36a, and the corner portion of the folded-back starting point is a bag-like portion 38a for forming a roped edge. Used as. Then, the portion Q1 excluding the portions to be the first extending film 36a and the bag-shaped portion 38a and the film 38 portion facing the portion Q1 are joined by any suitable joining means such as heat welding. With this configuration, the first extension film 36a integrated with the one film 38 and the bag-shaped portion 38a can be simply formed. Similarly, the other membrane 40 is a glass fiber cloth whose surface is coated with Teflon (trade name of DuPont), and the end portion of this membrane 40 is extended to the other side of the membrane supporting portion 30. To wrap. Of the folded-back portion, the portion extended to the other side of the membrane supporting portion 30 is used as the second extending membrane 36b, and the corner portion of the folded-back starting point is used as the bag-like portion 40a for forming the roped edge. To use. Then, the portion Q2 excluding the portion to be the second extending film 36b and the bag-shaped portion 40a and the portion of the film 40 facing the portion Q2 are joined by any suitable joining means such as heat welding. The ropes 42 are inserted through the bag-shaped portions 38a and 40a of the one and the other membranes 38 and 40, respectively, and roped edges are formed in these membranes 38 and 40, respectively.

Further, in this embodiment, the membrane support portion 30 is a steel material having an I-shaped cross section, and the first and second membrane retainers 32 and 34 are metal plates having a rectangular planar shape.

A plurality of first membrane retainers 32 are arranged at predetermined intervals along the extending direction P of the membrane supporting portion 30, and each first membrane retainer 32 is provided on the upper surface of the membrane supporting portion 30 in one direction. It is provided close to the side. Further, a plurality of second membrane retainers 34 are arranged at a predetermined interval along the extending direction P, and each second membrane retainer 34 is provided on the upper surface of the membrane supporting portion 30 so as to be closer to the other side.

In locking one of the membranes 38, the roped edge of the one membrane 38 is engaged with the first membrane retainer 32 while being interposed between the first membrane retainer 32 and the membrane supporting portion 30. The first membrane retainer 32 and the membrane supporting portion 30 are fastened with the bolt 44 and the nut 46 with the one membrane 38 being sandwiched. As a result, one of the membranes 38 is locked between the first membrane retainer 32 and the membrane supporting portion 30. When the one film 38 and the first extension film 36a are not integrally formed in advance, the bolt 44 needs to be sequentially penetrated through the first extension film 36a and the one film 38, which is a troublesome work twice. However, if these films 38 and 36a are integrally formed in advance, it is easy and easy to work without twice. Similar to the case of the one membrane 38, in locking the other membrane 40, the second membrane retainer 34 is engaged while the roped edge of the other membrane 40 is engaged with the second membrane retainer 34. The second membrane retainer 34 and the membrane support portion 30 are fastened with the bolt 44 and the nut 46 with the other membrane 40 sandwiched between the membrane support portion 30 and the membrane support portion 30. A cushioning material is provided between the one membrane 38 and the first membrane retainer 32 and the membrane support portion 30, and between the other membrane 40 and the second membrane retainer 34 and the membrane support portion 30, respectively. 48 For example, a rubber sheet is provided. The cushioning material 48 is for preventing the membranes 38 and 40 from being damaged.

Further, the covering film 36c is a glass fiber cloth having a surface coated with Teflon (trade name of DuPont). After locking the one and the other membranes 38 and 40, one and the other side portions of the covering membrane 36c are attached to the first and second extending membranes 36a and 36b by using any suitable coupling means such as heat welding. And the assembly of the cover portion 36 is completed.

The covering film 36c is provided so as to extend in the extending direction P of the film supporting portion 30, and the first and second film retainers 32 and 34 provided on the film supporting portion 30 are covered with the covering film 36c. . The covering portion 36 seals the portion of the membrane supporting portion 30 where the first and second membrane retainers 32 and 34 are provided in a watertight or airtight manner.

In this embodiment, the one and the other membranes 38 and 40 are separately separated, but the membranes 38 and 40 may be a single membrane, or the membranes 38 and 40 may be separated from each other. As means for locking 40 between the membrane retainers 32 and 34 and the membrane supporting portion 30, a rolled edge, a bolt and a nut may be used, and any suitable locking means other than these may be used.

Next, an embodiment of the second invention will be described. FIG. 3 is a cross-sectional view schematically showing a main part configuration of an embodiment of the second invention. The components corresponding to those of the embodiment of the first invention described above are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 3 as well, the membrane fastening structure of this embodiment is one in which the membrane retainers 30 and 34 are provided side by side on the membrane supporting portion 30, and The membrane retainers 32 and 34 and the covering portions 50 of the membrane retainers 32 and 34 are provided.

The membrane end of the membrane 52 is locked between the membrane supporting portion 30 and the membrane retainer 32 to extend the membrane 52 from the membrane supporting portion 30. Similarly, the membrane end of the other membrane 54 is locked between the membrane supporting portion 30 and the membrane retainer 34 to extend the other membrane 54 from the membrane supporting portion 30. The cover portion 50 has cover plates 50a and 50b and seals 50c and 50d. One portion A of the covering plate 50a is fixed to the membrane supporting portion 30 on the side where the membrane 52 is locked, and the other portion B is extended to the side where the membrane 52 is extended to extend the membrane 52. Face the part. Then, a seal 50c is provided between the other portion B of the cover plate 50a and the extending portion of the film 52. Similarly, one portion A of the cover plate 50b is fixed to the membrane supporting portion 30 on the side where the membrane 54 is locked, and the other portion C is extended to the side where the membrane 54 is extended to form the membrane 54. Face the extended part of. Then, a seal 50d is provided between the other portion C of the cover plate 50b and the extended portion of the film 54.

In this example, the membranes 52 and 54 are glass fiber cloth having a surface coated with Teflon (trade name of DuPont). The end portion of the membrane 52 is folded back, and among the folded portions of the membrane 52, the corner portion of the folding start point is used as a bag-shaped portion 52a for forming a roped edge. Then, of the folded-back portion, the portion excluding the portion to be the bag-shaped portion 52a and the membrane 52 portion facing this portion are joined by any suitable joining means, for example, heat welding. Similarly, the bag-shaped portion 54a is formed on the other film 54. The rope 42 is inserted through the bag-shaped portions 52a and 54a, respectively, and roped edges are formed on the membranes 52 and 54. Then, the rope 52, the bolt 44, and the nut 46 are used to lock the membrane 52 between the membrane support portion 30 and the membrane retainer 32 and the membrane 54 between the membrane support portion 30 and the membrane retainer 34. . A cushioning material 48 is provided between the membrane 52 and the membrane retainer 32 and the membrane supporting portion 30, and between the other membrane 54 and the membrane retainer 34 and the membrane supporting portion 30, respectively.

FIG. 4 is a perspective view schematically showing the structure of the cover plate in this embodiment. As shown in FIGS. 1 and 4, in this embodiment, the cover plates 50a and 50b are integrally connected at the common portion A to form the cover plate L (see FIG. 4). The cover plate L is formed by bending a single metal plate.

The portion A of the cover plate L is fixed to the portion of the membrane supporting portion 30 exposed between the membrane ends of the membranes 52 and 54. Welding, screws, adhesives or any other suitable means may be used for this fixing. The extending portion B of the fixed cover plate 50a is extended to the side where the membrane 52 extends, so that the portion A to the portion B of the cover plate 50a covers the membrane retainer 32 like a canopy. Similarly, the extending portion C of the fixed cover plate 50b is extended to the side opposite to the cover plate 50a, and the portions A to C of the cover plate 50b cover the membrane retainer 34 like eaves.

Then, a seal 50c is provided between the extending portion B of the cover plate 50a and the film 52, and a seal 50d is provided between the extending portion C of the cover plate 50b and the film 54. A sealant (liquid sealing material) or any other suitable seal is used as the seals 50c and 50d. The covering portion 50 seals the portion of the membrane supporting portion 30 where the membrane retainers 32 and 34 are provided in a watertight or airtight manner. If there is a concern about leakage of rain from the portion A of the fixed cover plate L 1, a seal may be provided also on this fixed portion. Further, the cover plates 50a and 50b may not be integrally formed.

FIG. 5 is a cross-sectional view of an essential part schematically showing the configuration of another embodiment of the second invention. The constituent components corresponding to those of the embodiment of the second invention described above are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown also in FIG. 5, the membrane fastening structure of this embodiment is one in which one membrane retainer 32 is provided on the membrane supporting portion 30 and the other membrane retainer 34 is not provided, It is provided with a membrane supporting portion 30, a membrane retainer 32, and a cover portion 56 of the membrane retainer 32.

The membrane end of the membrane 52 is locked between the membrane supporting portion 30 and the membrane retainer 32 to extend the membrane 52 from the membrane supporting portion 30. The other membrane 54 does not engage with the membrane support 30. The cover portion 56 includes the cover plate 50a and the seal material 50c, and does not include the cover plate 50b and the seal 50d. An extension portion of the membrane 52 is fixed by fixing one portion A of the cover plate 50a to the membrane supporting portion 30 on the side where the membrane 52 is locked and extending the other portion B to the side where the membrane 52 is extended. To face. Then, a seal 50c is provided between the other portion B of the cover plate 50a and the extending portion of the film 52.

The invention is not limited to the above-described embodiment, and therefore, the shape, the arrangement position, the arrangement number, the forming material and the like of each component can be arbitrarily changed.

[0035]

As is apparent from the above description, according to the first and second inventions, the number of constituent parts of the cover portion is smaller than in the conventional case, so that the sealing work of the membrane fastening portion of the membrane structure portion can be performed. The cost required for sealing can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an essential part schematically showing the configuration of an embodiment of the first invention.

FIG. 2 is a main part plan view schematically showing the configuration of an embodiment of the first invention.

FIG. 3 is a cross-sectional view of a main part schematically showing the configuration of an embodiment of the second invention.

FIG. 4 is a perspective view schematically showing a configuration example of a cover plate.

FIG. 5 is a cross-sectional view of essential parts schematically showing the configuration of another embodiment of the second invention.

FIG. 6 is a cross-sectional view of a main part schematically showing the configuration of a conventional membrane fastening structure.

[Explanation of symbols]

 30: Membrane supporting part 32, 34: Membrane retainer 36, 50: Cover part 36a, 36b: Extending film 36c: Covering film 38, 40, 52, 54: Membrane 50a, 50b: Covering plate 50c, 50d: Seal

Claims (4)

[Scope of utility model registration request] 1. A membrane supporting portion, first and second membrane retainers provided in parallel with the membrane supporting portion, and a cover portion for these membrane retainers, one arranged on one side of the membrane supporting portion. Of the membrane is locked between the membrane support and the first membrane retainer, and the other membrane disposed on the other side of the membrane support is retained between the membrane support and the second membrane retainer. In the membrane fastening structure of the membrane structure, the cover portion extends to one side of the membrane supporting portion, and the first membrane retainer and the first extending membrane locked between the one membrane, A second extension film extended to the other side of the membrane support part and locked between the second membrane retainer and the other membrane, and one end is connected to the first extension film and the other end is connected to the first extension film. A membrane fastening structure for a membrane structure, comprising: a covering film connected to the second extending film. 2. The one film and the first extending film are integrally formed in advance, and the other film and the second extending film are integrally formed in advance. Membrane fastening structure of the membrane structure. 3. A membrane supporting section, a membrane retainer provided on the membrane supporting section, and a covering section for the membrane retaining section, wherein the membrane edge of the membrane is locked between the membrane supporting section and the membrane retaining section. In the membrane fastening structure of the membrane structure formed by extending from the support portion, the cover portion fixes one portion to the membrane support portion on the side where the membrane is locked and the other portion extends the membrane. A cover plate extending toward the open side and facing the extended portion of the membrane, and a seal provided between the other portion of the cover plate and the extended portion of the membrane. Membrane fastening structure of membrane structure. 4. The membrane fastening structure for a membrane structure according to claim 3, wherein the cover plate is a metal plate.