JPS6339733B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an exterior structure for a simple building such as an agricultural or horticultural greenhouse or a garage.

As shown in FIG. 7, conventional simple buildings of this kind generally first assemble a roof and four-wall framework using frame materials 101 having various cross-sectional shapes, and then a plurality of synthetic resin corrugated plates, etc. are mounted on top of this. The exterior plate 102 of
As shown in FIG. 8, the frame material 101 is
Most of the products are made by attaching and fixing them to the surface.

However, simple buildings with such exterior structures have the following problems. One of the problems is the lift force generated on the exterior plate 102 when exposed to wind. That is, in Fig. 7, when the wind blows in the direction of arrow A, a pressing force due to the wind pressure acts on the windward side a of the building that receives the wind at right angles, but the remaining three sides b and c of the building act on the windward side a. , d and the slopes of the roof e, f
In both cases, the pressure will be reduced and a lift force will be generated outward as shown by the arrow. The magnitude of this lift force is determined by the angle of inclination θ when the wind pressure is 1, even in the case of the slope e on the windward side of the roof where the lift force is the smallest.
If is 17 degrees (so-called 3-inch slope), the lift force is 0.12
Therefore, if the inclination angle θ is 22 degrees (so-called 4-dimensional slope), the lift force will be 0.013. Therefore, the leeward slope f of the roof and the other three side surfaces b, c, d
It is clear that an even greater lift force will be generated. When such a large lifting force is generated, as shown in FIG.
Since the exterior board 102 fixed to 01 expands outward from the building as shown by the broken line, a tensile force in the direction of arrow B acts on both ends of the exterior board 102, and this tensile force causes the exterior board 102 to stopper hole 104
Since the exterior plate 102 is torn from that point, the exterior plate 102 comes off from the frame material 101.

Another problem is that when the exterior plate 102, which has a large surface area such as this synthetic resin corrugated plate, is attached to the roof of a building or the frame material 101 of the four walls, there is a large amount of heat radiated at night, so there is insufficient heat retention. This means that no effect can be obtained. Although this problem is not so important in the case of a garage or the like, it is an extremely important problem in the case of an agricultural or horticultural greenhouse, and cannot be taken lightly.

The main purpose of the present invention is to solve the above-mentioned problem of peeling off of the exterior plate due to lifting force and the problem of poor heat retention at once.
Exterior of a simple building, characterized in that a transparent or translucent exterior board having rigidity is fixed to the frame materials of the simple building by curving inward between the frame materials of the simple building. It is related to the structure.

Hereinafter, the exterior structure of the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention, FIG. 2 is a schematic sectional view taken along the line -- in FIG.
The figure is a perspective view of the exterior plate used in the same embodiment. In the embodiment shown in FIG. At the same time, a plurality of column frame members 12 supporting the roof frame are erected at equal intervals, and a plurality of horizontal frame members 13 are attached at intervals inside them to form four walls. The skeleton has been assembled. The spacing between the rafter frame members 11 in this roof frame and the spacing between the column frame members 12 in the four-wall frame are both set equally to about 30 to 50 cm.

As shown in FIG. 3, the exterior plate 20 that is attached and fixed to the roof and four-wall framework is a transparent or semi-transparent rigid plate with chevron-shaped connecting edges 201, 201' formed at both ends in the width direction. It is a certain concave curved plate,
Synthetic resins such as polycarbonate, methyl methacrylate, and polyvinyl chloride are obtained by various known molding methods. The width dimension W of this exterior board 20 (dimension from one connecting edge 201 to the other connecting edge 201') is 30 to 50 cm, which is equal to the spacing between the rafter frame materials 11 and column frame materials 13.
The depth of the deepest part of the center is d.
It is set fairly flat, about 2 to 4 cm.

As shown in FIG.
1′ are overlapped and connected to the adjacent exterior plate 20, and the overlapped connection part is connected to the stopper 30.
By fixing it to each rafter frame member 11, it is attached and fixed to the frame of the roof. Then,
This pasted and fixed exterior board 20 is in a state of being curved toward the inside of the building between both rafter frame members 11, 11. In the case of attaching and fixing to the framework of the four walls, similarly, the connection edges are overlapped on each column frame material 13, and the exterior plates are connected and fixed to the column frame material 13 with fasteners. Therefore,
The exterior plate 20 includes the column frame material 13 and the column frame material 1
3, it is also curved towards the inside of the building.

If the exterior plate 20 is curved inward between the frame members in this way, even if the exterior plate 20 bulges slightly outward due to the lifting force generated on the exterior plate 20 as shown by the broken line in FIG. , the connecting edges 201, 201' of the exterior plate 20 are only subjected to a stretching force in the direction of the arrow C, and no tensile force in the direction of the arrow B as in the conventional case is generated.
This eliminates the problem of the material being torn and peeling off from the stopper hole 40. When the exterior plate 20 is such a concave curved plate, the surface area is much smaller than that of a conventional corrugated synthetic resin plate, so the amount of heat dissipated at night is reduced and heat retention is improved. In this case, the width W of the exterior plate 20 is approximately 30 to 50 cm as described above, and the depth d of the deepest part in the center is 2 to 4 cm.
If it is set to a certain degree, the bulge of the exterior plate 20 due to lifting force can be suppressed to a small extent, and the surface area is almost the same as that of a flat plate, which has the advantage of greatly improving heat retention. Moreover, if the depth of the deepest part of the center is small in this way, the exterior board 20 will be in a non-contact state with the main building frame material 10 when it is attached to the roof frame, so that condensed water will flow to the deepest part of the center of the exterior board 20. It also has the advantage of flowing down to the edge without dripping along the back surface.

In the embodiment described above, the exterior plate 20 shown in FIG.
1,201' with a flat W-shaped cross section, and a concave curved exterior plate 22 with reinforcing bands 202, 202 attached to both longitudinal ends to prevent deformation as shown in Fig. 5 are also used. It is possible, and in some cases, a flat exterior plate can also be used.

When using a flat exterior plate, as shown in FIG. The end portions of the flat exterior plates 23 on both sides are brought into contact with each other, and a substantially semi-cylindrical holding strip member 50 is placed over the abutting end portions and fixed to each frame member 11 with the fasteners 30.

As can be understood from the above description, the exterior structure of the present invention has a rigid transparent or semi-transparent exterior plate that is curved inward between the frame materials and fixed to the frame materials. By doing so, when a lifting force is generated on the exterior plate, a stretching force in the direction of arrow C is applied to both ends of the exterior plate, so that tearing of both ends of the exterior plate and the resulting peeling of the exterior plate can be prevented. Moreover, since the exterior plate has a much smaller surface area than conventional corrugated synthetic resin plates, the amount of heat radiated at night is reduced and sufficient heat retention can be achieved. It is effective.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention, FIG. 2 is a schematic sectional view taken along the line -- in FIG.
4 and 5 are all perspective views of the exterior plate used in the present invention, FIG. 6 is an explanatory diagram of the state in which the flat exterior plate is pasted, FIG. 7 is a partially cutaway perspective view of the conventional example, and FIG. The figure is a schematic partial sectional view of a conventional example. Explanation of main symbols in the drawings, 10...Purlin frame material, 11...Rafter frame material, 12...Column frame material, 13...Horizontal frame material, 20, 21, 2
2, 23...exterior plate, 30...stop.

Claims (1)

[Claims] 1 A transparent or semi-transparent exterior plate with rigidity,
An exterior structure for a simple building, which is curved inward of the simple building between the frame materials of the simple building and fixed to the frame materials.