JPH03279570A - Membranous structure using frame and air concurrently - Google Patents

Abstract

PURPOSE:To improve working efficiency and to reduce the cost by arranging supporting members continuously or intermittently in the inner direction of a scheduled surface of extending membranous materials to compose a foundation, holding the membranous materials on the foundation, and giving a tension to the membranous materials with the air pressure. CONSTITUTION:In a superstructure 2, a foundation 5 in which plural frames 4 in a horizontal posture along the peripheral direction, of the directions in the surface of a scheduled surface of extending membranous materials, are installed in normally-crossing directions, and the membranous materials 6 supported on the foundation 5 by binding with cords (a) are formed on a framework 3 of iron frames. Then, cushion materials 7 which consist of a foam urethane or the like are stuck on the surface to support the membranous materials 6. Then, after the foundation 5 is constructed, the membranous materials 6 are held on the foundation 5, the air is blown in the the room to give a tension to the membranous materials 6, and the membranous structure is constructed. Consequently, the working efficiency is improved, and it can be manufactured at a low cost.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a membrane structure constituting a roof or the like.

[Conventional technology]

Conventionally, membrane structures have been constructed in such a way that the membrane is supported by frames dispersed along the surface where the membrane is to be stretched, and tension is applied to the membrane by pulling the membrane with the frames.
A frame membrane structure and a so-called air membrane structure in which the membrane material is supported by increasing the air pressure in a room covered with the membrane material and tension is applied to the membrane material are known.

[Problem to be solved by the invention]

However, the conventional technology has the following drawbacks.

In the case of the former frame membrane structure, when pulling each part of the membrane material to the frame, it will be difficult to pull it with appropriate tension.
The membrane material may become sagging or wrinkled, making it impossible to apply the membrane material in a desired shape along the surface on which the membrane material is to be applied, making installation difficult and complicated, and lacking in workability.

Moreover, since the membrane material is strongly pressed against the frame in the stretched state, the shape of the frame clearly stands out on the outer surface of the membrane material, making it difficult to create a rounded and smooth appearance.

On the other hand, when using the latter air membrane structure, the air pressure is used to support the membrane material and apply tension to the membrane material, so a large air pressure is required and air supply equipment such as a blower becomes large-scale. , the cost was high in terms of both initials and running. Moreover, contrary to the frame membrane structure, it was not possible to create an angular appearance.

An object of the present invention is to provide a membrane structure that can eliminate the above-mentioned drawbacks.

[Means to solve the problem]

The membrane structure according to the present invention is a frame/air combination membrane structure, and its characteristic configuration is that supporting portions are arranged continuously or intermittently in the in-plane direction of the surface on which the membrane material is to be stretched to form a base; A membrane material is supported on the base, and tension is applied to the membrane material using air pressure.

[For production]

While the membrane material is supported by the base, air pressure is used to apply tension to the membrane material.The support of the membrane material and the application of tension to the membrane material are shared between the base and the air pressure, so the air pressure does not apply tension. This means that only a small amount of air pressure is needed, and on the other hand, the membrane material can be stretched without causing sagging or wrinkles, with simple and easy operations that simply supply air to the room covered with the membrane material. The membrane material can be stretched in a desired shape along the surface.

Furthermore, since a supporting portion such as a frame is used to stretch the membrane material, it is possible to easily create an angular appearance by stretching the membrane material so as to press it against the supporting portion. On the other hand, since air pressure is also used to tension the membrane material, a rounded appearance can be easily achieved.

〔Effect of the invention〕

Therefore, according to the present invention, it can be manufactured with good workability and at low cost.
In addition, the running cost is low, and it is now possible to provide a frame/air membrane structure that can be configured into a variety of shapes.

〔Example〕

Examples of the present invention are shown below.

As shown in FIG. 1, the structure includes a lower structure (1),
It consists of a frame shaped like a plant bud extending from the earth toward the sky, and an upper structure (2) with an air-membrane structure.

The upper structure (2) has a steel frame (3) and a plurality of frames (4) (an example of a support part) in a horizontal position along the circumferential direction of the in-plane direction of the surface on which the membrane material is to be installed. As shown in FIG. 4, it is tied with a string (a) as shown in FIG. Underlying (5)
It consists of a membrane material (6) supported by.

The membrane material (6) is an air supply device (
The tension is applied by the air pressure caused by blowing air through the tube (not shown), that is, the differential pressure between the indoor air pressure and the outdoor air pressure.

As shown in FIG. 2, a cushioning material (7) made of urethane foam or the like is attached to the surface of the frame (4) that receives and stops the membrane material (6).

In addition, at acute angles such as the top of the upper structure (2), as shown in Figure 3, the membrane material (6) is placed so as to press against the frame (4) to create a less rounded acute angle. It is supposed to be done.

Next, to briefly explain the procedure for manufacturing the upper structure (2), a base (5) is constructed, and then a membrane material (6) is applied to the base (5).
), and then air is blown into the room to support the membrane material (6
) to apply tension. Incidentally, an example of an actual numerical value of air pressure is 1.5 to 5 kg/rr1'.

[Another example]

Another embodiment of the invention is shown below.

In the above embodiment, the structure is shaped like a plant bud, but the shape of the frame/air membrane structure of the present invention can be freely selected.

It should be noted that the present invention is not limited to the structure shown in the accompanying drawings due to the addition of reference numerals in the claims for convenience of comparison with the drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway front view, FIGS. 2 and 3 are sectional views of the main parts, and FIG. 4 is a perspective view of the main parts. (4)...Frame, (5)...Base, (6)...Membrane material.

Claims (1)

[Claims] A base (5) is constructed by arranging support parts (4) continuously or intermittently in the in-plane direction of the surface on which the membrane material is to be stretched;
A frame/air membrane structure in which the membrane material (6) is supported by the membrane material (6) and tension is applied to the membrane material (6) by air pressure.