JPH0197770A - Cable fixture for air dome - Google Patents

Abstract

PURPOSE: To prevent slackening of a roof film fixed to a structure main body by fixing the roof membrane by means of cables extended therebelow, and expandably coupling the cables to cable fixtures vertically rotatably attached to a structure. CONSTITUTION: A roof membrane 3 has its ends attached to a structure main body 9 and is fixed at fixing points 10 to cables 6 extended over the lower surface therof. Cable fixtures 8 are vertically rotatably attached to the structure main body 9 below the fixed positions of the roof membrane 3 and the cables 6 are coupled to the cable fixtures 8 via expansion means 7. During inflation (A condition), the roof membrane 3 expands without slackening, and during deflation (B condition) it tends to slacken, in which case the expansion means 7 are contracted to prevent slackening of the roof membrane 3. Therefore, slackening of the roof membrane 3 can be prevented using a very simple method of adding only the expansion means 7.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cable attachment device for an air dome.

(Prior art) In conventional air domes, the roof membrane moves up and down during inflation and deflation, but this is due to the difference in the amount of expansion and contraction due to the geometrical position of the roof membrane and the cables stretched under the membrane. This was accompanied by the problem of the membrane becoming wet.

(Problems to be Solved by the Invention) It is an object of the present invention to provide an air dome cable attachment device that solves the above-mentioned conventional problems and prevents the roof membrane from sagging.

(Means for Solving the Problems) In order to achieve the above objects, the present invention provides a roof membrane whose ends are fixed to the structure body, and a roof membrane which is stretched over the lower surface of the roof membrane and fixed to the roof membrane. An air dome cable attachment device comprising a cable, a cable attachment body attached to the structure body below the fixing position of the roof membrane so as to be movable up and down, and an extensible means for connecting the cable attachment body and the cable. This is a proposal.

(Function) The mounting device of the present invention has the structure described in the claims, and in particular, since the cable attachment body and the cable are connected by the expansion and contraction means, the roof membrane is prevented from sagging by the expansion and contraction of the expansion and contraction means.

The mounting device of the present invention has the same structure as above, and is extremely simple, especially since it only requires the addition of a telescoping means.

(Example) The air dome cable attachment device of the present invention will be described below according to an example shown in the drawings.

1 and 2 show an attachment device according to the invention - which has a roof membrane (3) fixed at its ends to the structure body (9).

The roof membrane (3) is fixed (anchoring points (10)) to a cable (6) stretched on its underside.

On the other hand, the structure body (9) below the fixed position of the roof membrane (3)
) is attached with a cable attachment body (8) movable up and down.

The cable attachment body (8) and the cable (6) are connected by a telescoping means (7).

The expansion/contraction means (7) allows expansion and contraction adjustment of the length of the connection, and although a screw is used in the illustrated embodiment, a method using a spring coil is also conceivable.

The operation of the air dome cable attachment device of the present invention shown in the above embodiments is as follows.

In other words, if the roof membrane (3) is taut without sagging during inflation (the state shown in Figure 2 A), then when the roof membrane (3) is deflated (the state shown in Figure 2 B), the roof membrane (3) is moved from the fixed position to the fixed point. Ku! 0) and cable attachment body (
The roof membrane (3) tends to sag because there is a difference in the distance from the center of rotation (8) to the fixed point (10).

At this time, the expansion/contraction means (7) is contracted to prevent the roof membrane (3) from sagging.

(Effects of the Invention) The embodiments of the air dome cable attachment device of the present invention are as described above, and the effects thereof are listed below.

(1) The mounting device of the present invention has the structure described in the claims, and in particular, since the cable attachment body and the cable are connected by the expansion and contraction means, the roof membrane is prevented from sagging by the expansion and contraction of the expansion and contraction means.

(2) The mounting device of the present invention has the same structure as the above, and is extremely simple, especially since it only requires the addition of a telescoping means.

[Brief explanation of the drawing]

Fig. 1 is a conceptual diagram of an air dome using the mounting device of the present invention. Fig. 2 is a front view showing details of section A in Fig. 1. 1: Air dome 3: Roof membrane 6: Cable 7: Expanding means 8: Cable attachment body 9: Structure body lO: Fixing point applicant Daiwa House Industry Co., Ltd.

Claims (1)

[Claims] 1. A roof membrane whose ends are fixed to the structure body, a cable stretched on the lower surface of the roof membrane and to which the roof membrane is fixed, and a cable that moves vertically to the structure body below the fixed position of the roof membrane. A cable attachment device for an air dome, comprising a removably attached cable attachment body and telescoping means for connecting the cable attachment body and the cable.