JPH0345799Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a synthetic resin covering material suitably used as a covering material for agricultural and horticultural greenhouses, particularly as a replacement covering material.

In conventional small-scale agricultural and horticultural greenhouses, vinyl chloride resin film, generally referred to as "agricultural plastic film," is often used as a covering material. As an example of such a film is shown in FIG.
It has the advantage that it can be easily pasted by pressing from above with the film 2, but on the other hand, it has the disadvantage that it has poor weather resistance and must be replaced with a new film after only one to two years.

To overcome these drawbacks, it would be possible to replace the sheathing with a material such as synthetic resin corrugated sheeting, which has a long service life, but if the existing house frame is used as is and the corrugated sheeting is pasted on it, As shown in FIG. 5, the upper end of the groove-shaped frame material 100
03, and the stopper 104
Since the washer 105 may become distorted when it is fixed, there is a problem that it is difficult to firmly attach the corrugated sheet 103 without wobbling.

The present invention was devised in view of these circumstances, and its purpose is to provide a structure that has a much longer service life than agricultural biofilm, can be firmly attached to the existing house frame, and is To provide a convenient synthetic resin covering material whose width can be adjusted according to the mutual spacing between frame members of a skeleton.

That is, in order to achieve the above object, the present invention is a plate-like body having a horizontal flat plate part and a corrugated plate part, and has a thickness small enough to allow the corrugated plate part to elastically expand and contract in the wavelength direction, The flat plate portion has a width that is approximately the same as or greater than the wavelength dimension of the corrugated plate portion, and is formed along at least both side edges of the plate-like body, and the flat plate portion along one side edge is wider than the flat plate portion along the other side edge. This is a synthetic resin covering material that is narrow in width and has continuous end ends that are approximately V-shaped in cross section. In this way, by making the plate-shaped body of synthetic resin, it has a longer service life than conventional film, and by making the corrugated plate part thin enough to expand and contract, it can be adjusted according to the frame spacing. Furthermore, the width of the flat plate part is made to be approximately the same as or larger than the wavelength dimension of the corrugated plate part at least along both sides of the plate-like body, and the flat plate part along one side edge is By making the width narrower than the flat plate part along the other side edge and providing a continuous edge with a roughly V-shaped cross section, the flat plate part connects the covering materials to each other and is stable without rattling and without fear of leakage. I would like to be able to attach it to the frame material.

Hereinafter, the synthetic resin covering material of the present invention will be explained in detail with reference to the drawings.

Fig. 1 is a perspective view of an embodiment of the present invention, and Fig. 2 is an explanatory diagram of its usage state. The thickness is determined in the wavelength direction of the corrugated plate portion 2, that is, the arrow A
The thickness is small enough that the corrugated plate portion 2 can elastically expand and contract in the same direction when an external force is applied in the same direction.

The specific value for the thickness varies slightly depending on the type of synthetic resin used, but for example, when using relatively tough synthetic resins such as methyl methacrylate, polycarbonate, polyethylene, and glass fiber reinforced acrylic resin, It is set to approximately 0.5mm or less.

As shown in FIGS. 1 and 2, the flat plate portion 1 has
It has a width that is approximately the same as or larger than the wavelength dimension of the corrugated plate portion 2, and in this embodiment, it is formed at three locations along both side edges of the plate-like body and at the center.
The width of the flat plate portion 1a along one side edge (the flat plate portion along the left side edge in the figure) is slightly narrower than the other flat plate portions. Edges 11a and 11b each having a substantially V-shaped cross section are connected to the flat plate portion 1a along one side edge and the flat plate portion 1b along the other side edge, respectively.

As described later, this covering material is one in which each flat plate part 1 is pasted on top of the frame material constituting the house skeleton, so the mutual spacing of the flat plate parts 1 is equal to the mutual spacing of normal frame materials. It is desirable to set the total length to about 50cm.

Note that the flat plate portions 1a and 1b along both side edges are essential for connecting the covering materials, but the central flat plate portion 1c can be omitted.

Such coating materials can be easily and inexpensively continuously produced using synthetic resins such as those described above by extrusion molding or casting methods, but especially when using methyl methacrylate or glass fiber reinforced acrylic resin, This is desirable because it significantly improves the weather resistance, strength, toughness, etc. of the material.

When attaching this covering material to the house frame,
As shown in FIG. 2, each flat plate part 1a, 1b, 1c is connected by overlapping the flat plate part 1b along the other side edge of the next covering material on the flat plate part 1a along one side edge.
is placed on each frame material 3, and then fixed to the frame material 3 from above with screws or other fasteners 6 via a hat-shaped holding piece 5 having a gasket 4 as shown in FIG. .

As described above, since the covering material of the present invention is fixed to the frame material 3 by the horizontal flat plate part 1 having a width that is approximately the same as or larger than the wavelength dimension of the corrugated plate part 2, the upper end of the frame material 3 is fixed to the flat plate part 1. It makes perfect contact with the lower surface of the part 1, and the packing 4 and the presser piece 5 sit well, so that it can be firmly attached without wobbling or leaking. Moreover, since the thickness of the covering material is small enough that the corrugated plate portion 2 can expand and contract in the wavelength direction, even if the mutual spacing between the frame members 3 is not constant, the width of the covering material can be adjusted with a slight force. It is possible to match the mutual spacing between the frame members 3, and therefore the pasting work can be carried out easily and with high efficiency. Furthermore, with such a small thickness, even if the corrugated plate portion 2 is expanded and contracted considerably, no large stress remains, so even if the covering material deteriorates to some extent, there is no risk of cracking, etc., and the plate-like structure can be used. Together, the useful life is significantly extended to more than five years. Further, the flat plate portion 1a along one side edge is narrower than the flat plate portion 1b along the other side edge, and the edge 11 has a substantially V-shaped cross section.
When the edges 11a are connected, as shown in FIG.
Since a large space 7 is created between the flat plate part 1a and the flat plate part 1b, even if rainwater enters the minute gap between the flat plate part 1a and the flat plate part 1b by capillary phenomenon, the infiltration can be stopped in this space 7. Even if it is not possible to stop the drain, the water can be drained by catching it with the edge 11a, which has a substantially V-shaped cross section. Therefore, rain leakage can be reliably prevented.

As described above, the present invention is highly effective and has great practicality.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the same embodiment in use, Fig. 3 is a partially enlarged sectional view of Fig. 2, and Fig. 4 is a conventional method of pasting agricultural film. A perspective view showing the state, and FIG. 5 is an explanatory diagram showing a state in which a conventional corrugated sheet is attached. 1, 1a, 1b, 1c... flat plate part, 2... corrugated plate part.

Claims (1)

[Scope of utility model registration request] It is a plate-like body having a horizontal flat plate part and a corrugated plate part, and has a small thickness that allows the corrugated plate part to elastically expand and contract in the wavelength direction, and the flat plate part has a wavelength dimension that is approximately the same as or equal to the wavelength dimension of the corrugated plate part. The flat plate part along one side edge is narrower in width than the flat plate part along the other side edge, and has a substantially V-shaped cross section. Continuously installed synthetic resin covering material.