JPH0436233B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a membrane surface bonding device for an air membrane structure in which reinforcing cables are provided in one or two directions.

(Conventional technology) As the scale of air membrane structures increases,
The required strength cannot be maintained only by the membrane surface, and reinforcement with wire rope is required. Furthermore, from the viewpoint of ease of manufacturing the membrane surface, on-site construction, and maintenance, it is common to construct the membrane surface into small panels.

In this case, there are joints between the membrane panels and between the wire rope and the membrane panel, and it is necessary to ensure the strength, airtightness, and waterproofness of the joints, and to ensure ease of construction.

FIG. 15 shows a conventional joint structure of this type,
Upper and lower joint plates f, g sandwich the bolt c inserted through the mounting bracket b that holds the cable a, together with the joint end of the opposing membrane panel d and the end of the neoprene rubber e for watertight maintenance. It is constructed by inserting it into the hole and tightening it.

(Problems to be Solved by the Invention) In the conventional device, the number of parts at the joint increases, the weight increases, and water leaks from between the upper surface of the membrane panel d and the neoprene rubber e as shown by the arrow. In addition, during bonding work, membrane panel d
It is difficult to pull the end into the joint.

(Means for Solving the Problems) The present invention has been proposed to solve these problems, and includes a membrane end plate wrapped along the joint edge, and a membrane end plate wrapped along the joint edge. The base end edge of the auxiliary membrane for fluid tightness is welded to the upper and lower joint plates that sandwich the membrane end plates of the pair of opposing membrane panels, and the cable is inserted from the cable fitting that holds the cable. An air membrane structure characterized in that the tips of each of the auxiliary membranes are joined in a fluid-tight manner so as to insert and tighten an upright joint plate mounting bolt and cover the upper part of the tightening part. This relates to a membrane bonding device for products.

(Function) Since the present invention is configured as described above,
Using the membrane end plates wrapped along the joining edges of the membrane panels, pull the joining ends of the membrane panels to be joined to the joining position, and then attach each membrane end plate of each membrane panel to the upper and lower joint plates. At the same time, the membrane panels are joined by inserting and tightening the joint plate mounting bolts, which are set up from the cable fittings that hold the cables, across each joint plate, and further Each tip of a fluid-tight auxiliary membrane whose proximal edge is welded to the upper surface of the joint end of each membrane panel is welded, and the upper part of the membrane panel joint is covered by each auxiliary membrane. It is something to do.

(Effects of the Invention) According to the present invention, the structure is divided into a structural membrane joint between the joint plate mounting bolt and the joint plate, and a liquid-tight membrane joint using the auxiliary membrane. This simplifies the structure of the joint, reduces the number of assembly elements, reduces weight, and reduces assembly time.

Further, the joint plate mounting bolts are installed from cable fittings that hold the cables, and a pair of upper and lower joint plates that sandwich the membrane end plates wrapped around each joining edge of the opposing pair of membrane panels. By being inserted and tightened over the entire length, the cable fitting serves both as a cable wrapping member and as a bolt mounting member for joining the membrane end plates, further simplifying the structure of the device of the present invention. It is something.

In addition, the tip of the fluid-tight auxiliary membrane whose base end is welded to the upper surface of the joint end of the pair of membrane panels to be joined is welded, and the membrane panel joint is covered by each of the auxiliary films. This prevents water from leaking from the joints.

Furthermore, according to the present invention, a membrane end plate with bending rigidity is wrapped along the joint edge of the membrane panel, so it is easy to pull in the end of the membrane panel when constructing the joint, improving workability. It is something that will be done.

(Example) The present invention will be described below with reference to the illustrated embodiments.

Reference numeral A denotes a membrane panel, and a bag-shaped portion 3 having notches 1 at predetermined positions and bolt holes 2 arranged in rows is formed on the joint edge thereof. 4 in the figure is a welded portion on the proximal edge side of the bag-like portion 3.

A membrane end plate 6 having a row of bolt holes 5 is inserted into the bag-shaped portion 3 through a notch 1 .

The membrane end plate 6 is divided into appropriate lengths so as to follow the deformation of the cable during inflation and deflation of the air membrane structure.

Furthermore, the proximal edge of the watertight and security-keeping auxiliary membrane 7 is integrally welded to the upper surface of the joint end of the membrane panel A, and a slip-out prevention material is provided on the distal edge to prevent it from coming off after being inserted into the gasket 23. A fluororesin plate 8 or a torn film material 8a is welded thereto. (See FIGS. 16 and 17) B is a cable, and cable attachment fittings are fixed at predetermined intervals. The cable mounting bracket is composed of a pair of upper and lower mounting pieces 9 and 10 that hold the cable B, and a bolt 11 is inserted and tightened between the end flanges of each of the mounting pieces 9 and 10. Further, a joint plate mounting bolt 12 is vertically provided on the top surface of the upper mounting piece 9.

Then, upper and lower joint plates 13,
Temporarily fasten 14. (See FIG. 4) Each of the joint plates 13 and 14 has a shape having an angle that matches the shape of the membrane during inflation.

Next, the membrane end plate 6 is inserted into the bag-shaped part 3 at the end of the membrane panel A, and the membrane material protection rubber sheets 15 and 16 are sandwiched between the upper and lower parts, and the rubber sheet, the plate 6, and the bag-shaped part 3 are inserted. Pre-drilled through hole 1
7, insert the retraction rope 18 into
Then, the joint end of the membrane panel A is pulled in between the upper and lower joint plates 13 and 14 (see FIG. 10), and the joint end is joined with the membrane end plate mounting bolt 19 (see FIG. 10). (See FIG. 5) Next, the gasket holder 20 is joined onto the upper joint plate 13 by the joint plate mounting bolts 12. At this point, the same bolt 1
2 is finally tightened. (See FIG. 6) Next, the gasket fitting 21 is joined to the gasket holder 20. (See Fig. 7) The gasket fitting 21 is divided into appropriate lengths so as to follow the deformation of the cable B during inflation and deflation.
0 through bolts 22.
(See Figure 2) Next, a gasket 23 made of neoprene or the like is attached to the gasket mounting hardware 21,
Insert the fluororesin plate 8 at the tip of the auxiliary membrane 7 into the gasket 23 (see Fig. 8), fit the zipper 24 into the gasket 23, and make the auxiliary membrane 7 of the adjacent pair of membrane panels A watertight. , and then airtightly join them to complete the joining work of the membrane panel A. (See FIG. 9) When the joining work of the membrane panel A is completed in this way, air is sealed inside the membrane panel A and pressurized. At this time, the force acting on the membrane surface is the upper and lower joint plates 1
3 and 14, and this vertical component is transmitted from the joint plate mounting bolt 12 to the cable B. Also, the horizontal components cancel each other out.

Note that FIG. 3 shows the state of the air membrane structure at the time of deflation.

In this way, according to the illustrated embodiment, the joint plate mounting bolt 12 and the upper and lower joint plates 13 and 14 are used as a structural joining means, and the auxiliary membrane 7 is used as a watertight and airtight joining means. Since the membrane panels A are joined together using the same method, the structure of the joining part is simplified, the number of elements to be assembled is reduced, and the joining work time is shortened.

In addition, by fluid-tightly attaching the fluororesin plate 8 at the tip of the auxiliary membrane 7 whose base end is welded to the upper surface of the joint end of the membrane panel A to the gasket 23, the auxiliary membrane 7 can be used to connect the membrane panel A. The upper surface of the joint is covered in a fluid-tight manner to prevent water from leaking from the joint.

Furthermore, since the membrane end plate 6 having the bending rigidity of the end pouch-shaped part 3 of the membrane panel A is inserted, it is easy to pull in the end of the membrane panel A when constructing the joint, and a retraction jig is attached to the end of the membrane panel. The workability is significantly improved compared to the conventional method, in which the ropes are attached at appropriate intervals and the rope is tied to the same jig.

FIG. 14 shows another embodiment of the present invention, in which the opposite ends of each auxiliary membrane 7 of adjacent membrane panels A have a welded portion 25.
are fluid-tightly joined by

In the drawings, parts equivalent to those of the above embodiments are given the same reference numerals.

Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and can be modified in various ways without departing from the spirit of the present invention. .

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the membrane surface bonding device in an air membrane structure according to the present invention, and FIG.
3 is a vertical cross-sectional view showing the deflated state, FIGS. 4 to 9 are vertical cross-sectional views showing the assembly process of the joining device, and FIG. 10 is the end of the membrane panel. Fig. 11 is a plan view showing the joining end of the membrane panel with the auxiliary membrane omitted, Fig. 12 is a longitudinal sectional view of the same part, and Fig. 13 is a plan view of the membrane end plate. 14 is a longitudinal sectional view showing another embodiment of the present invention, FIG. 15 is a longitudinal sectional view of a membrane surface coupling device in a conventional air membrane structure, and FIGS. 16 and 17 are longitudinal sectional views showing another embodiment of the present invention. FIG. 3 is a longitudinal cross-sectional view showing an embodiment of the leading edge of the auxiliary membrane. A...Membrane panel, B...Cable, 6...Membrane end plate, 7...Auxiliary membrane, 12...Joint plate mounting bolt, 13, 14...Joint plate, 23...Gasket, 25... Welded area of auxiliary membrane.

Claims (1)

[Claims] 1 A membrane end plate is wrapped along the joint edge,
In addition, the cable is held between the upper and lower joint plates that sandwich the membrane end plates of the pair of opposing membrane panels to which the proximal edge of the auxiliary membrane for fluid tightness is welded to the upper surface of the joint end. The tip of each of the auxiliary membranes is fluid-tightly joined so as to insert and tighten the joint plate mounting bolt that is erected from the cable fitting, and to cover the upper part of the tightened part. Membrane surface bonding device for air membrane structures.