JPS647731B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for stretching a double film when constructing a vinyl house using double films in order to improve the heat retention effect of the greenhouse.

In general, greenhouses were completed by pre-constructing a base frame of iron pipes or steel frames, and then forming the roof and side walls with single-layer film. Vinyl greenhouses with roofs and side walls made of double film are also appearing.

However, conventional double-film vinyl greenhouses are unsuitable for tensioning the film and have disadvantages such as difficulty in tensioning the greenhouse.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for stretching a double film that eliminates the above-mentioned disadvantages.

Next, the present invention will be described with reference to the embodiments shown in the drawings. In the drawings, reference numeral 1 denotes a base frame made of a steel frame or the like, and on the outer wall surface of this base frame 1, an inner fixing member is formed of a frame whose side surface is approximately trapezoidal. 2 is fixed with screws It is fixed by y etc.

The proximal end surface 3a of this spacer member has a bulging arc shape, and this proximal end surface 3a is connected to the inner film A.
The opening edge 2b of the inner fixing member 2 is in contact with the opening edge 2b of the inner fixing member 2 via. A partition plate 4 for fixing screws is provided at a predetermined position of the spacer member 3 (a position closer to the base end surface than the opening edge), and the screw y is screwed into the partition plate 4 from above, and the tip of the screw y is screwed into the partition plate 4. is screwed so as to pass through the proximal end surface 3a of the spacer member.

Furthermore, the tip of the spacer member 3 is formed into a forked tip opening 3b, and both sides of the tip opening 3b are formed with opening edges 3c. An outer film B is applied to the opening edge 3c, and an outer fixing member 5 is fixed to the outer surface of the outer film B with screws z or the like. Since this outer fixing member 5 is formed of a hollow pipe-shaped frame with a substantially leaf-shaped cross section, at least its base end surface 5a has a bulging arc shape, and this base end surface 5a is connected to the spacer through the outer film B. It is in contact with the opening edge 3c of the member 3. The screw z that fixes the outer fixing member 5 is screwed through the outer fixing member 5 from above the outer fixing member 5, and the tip of the screw z is screwed so as to pass through the partition plate 4 of the spacer member 3. be done. Reference numeral 6 is a mounting member provided as necessary, and is attached to the base frame 1.
and the inner fixing member 2.

Next, to explain the method for stretching the double film according to the present invention, first, a base frame 1 is erected at the house construction position, and approximately trapezoidal frames are formed at a predetermined interval on the outer wall surface of the base frame 1. Several inner fixing members 2 are fixed with screws x, and then the inner film A is applied under tension to the opening edge 2b of each inner fixing member 2, and the spacer member 3 is applied from the outer surface of the inner film A. Then, fix the spacer member by screwing the screw y so that it reaches the base end surface of the inner fixing member from the partition plate 4 of the spacer member 3, and then attach the outer film B to the opening edge 3c of the spacer member 3. The outer fixing member 5 is attached from the outer surface of the outer film B, and the screw Z reaching the partition plate 4 of the spacer member 3 is screwed from the outer surface of the outer fixing member 5 to fix the outer fixing member 5.

The present invention has the above configuration, and the inner film A
is held under clamping pressure between the proximal end surface 3a of the spacer member 3 and the opening edge 2b of the inner fixing member 2, and since the proximal end surface 3a has a bulging arc shape, the screw y
When tightened, the inner film A becomes even more tense.

Furthermore, the outer film B is held in a pinched state by the proximal end surface 5a of the outer fixing member 5 and the opening edge 3c of the spacer member 3, and since the proximal end surface 5a has a bulging arc shape, tightening the screw z will further increase the pressure. The outer film B becomes tense. Here, both films A and B are stably clamped by surface contact with each base end surface and each opening edge, so the films are made of a hard material and through holes are formed with fixing screws. Also, there is a feature that the tear does not spread outward from the position of the through hole.

In addition, since the partition plate 4 is provided on the spacer member, the axes of the screws x, y, and z are arranged neatly on parallel lines (on the same line as the longitudinal direction of the inner fixing member 2), so that the axes are randomly positioned. The tightening and fixing strength using screws is much superior compared to the conventional method.

Furthermore, the outer fixing member is formed into a hollow pipe shape in order to have strength against pressing force, and has greater strength than the outer fixing member which is formed in a single plate shape with the same overall weight. As a result, the strength of the greenhouse is improved.

Therefore, in the present invention, if the height dimension of the spacer member is previously formed to a desired dimension, a vinyl house having a desired inter-film dimension can be formed extremely easily and reliably, and the film of the finished vinyl house will be in a taut state. The strength of the greenhouse is significantly superior to that of conventional greenhouses.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of a part of a vinyl greenhouse formed according to the present invention, and FIG. 2 is an exploded perspective view of the main parts. DESCRIPTION OF SYMBOLS 1...Base frame, 2...Inner fixing member, 2a...Distal opening, 2b...Opening edge, 3...Spacer member, 3a...Proximal end surface, 3b...Distal opening, 3
c... Opening edge, 4... Partition plate, 5... Outer fixing member, 5a... Base end surface, x, y, z... Screw, A
...Inner film, B...Outer film.

Claims (1)

[Scope of Claims] 1. Several inner fixing members formed from a frame having a tip opening and an opening edge at the upper end and having substantially trapezoidal side surfaces are attached to the outside of the base frame at predetermined intervals. It is fixed to a wall surface, and then the inner film is applied under tension to the opening edge of each inner fixing member, and a distal opening and an opening edge are formed at the upper end, and a partition plate is placed at a position closer to the proximal end surface than the opening edge. A spacer member whose proximal end surface has a bulging arc shape is fixed such that the proximal end surface abuts the opening edge of the inner fixing member via the inner film, and then the opening edge of each spacer member is fixed. The outer film is applied under tension to the outer fixing member, which is formed of a hollow pipe-shaped frame with a generally leaf-like cross section, and whose proximal end surface has a bulging arc shape. A method for tensioning a double film in a vinyl greenhouse, which is fixed so as to come into contact with the opening edge of the spacer member.