JPH0246671Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a greenhouse that can be applied to agricultural greenhouses, drying greenhouses, etc. with dome-shaped roofs.

(Prior Art) Conventionally, tunnel-shaped greenhouses are generally referred to as vinyl greenhouses, and films such as soft vinyl chloride are used. However, such greenhouses suffer from severe deterioration, especially in the roof area, and it is necessary to replace the vinyl chloride film every year or every 2 to 3 years, which increases material and labor costs, resulting in high costs. It was hot.

Therefore, the present applicant has also proposed a tunnel-type greenhouse using thick arch-shaped resin plates (Utility Application No. 163528/1983). This is shown in Fig. 3. A plastic sheet 2 is stretched over a metal arch-shaped beam 1, and adjacent plastic sheets (not shown) are overlapped, and a presser is placed on the beam 1 at the overlapped portion. 3, and fix the sheet 2 and beams 1 and 3 together with bolts 4. In addition, 5 is a greenhouse frame.

However, in this conventionally proposed greenhouse, the holding material 3
In order to screw in the bolts 4, it was necessary to climb onto the arch-shaped roof and tighten a large number of bolts, which not only took time but also caused problems in terms of workability. Also, instead of using the holding members and bolts shown in Fig. 3, it may be possible to directly attach it to the frame 5 using hook bolts, screws, etc., but in this case, it would still be necessary to climb onto the arched roof.

In view of this situation, when considering a greenhouse that uses plastic materials and is cost-effective and easy to construct, it is conceivable to use a film for the wall portions and a resin plate for the roof portion. It is also desirable to provide rigidity to the resin plate so that it can be made as thin as possible.

Therefore, the applicant proposed a transparent plastic corrugated plate 6.
As shown in Figures 4 and 5, we have already proposed a greenhouse in which the roof is bent at least on the roof (Utility Application No. 599-109054); It is caused by sticking to
Since a continuous filament 9 such as a string is passed through the hole 8 and tightened, it is cumbersome in terms of workability.
In addition, there were drawbacks such as a slight lack of tightening force and the edges partially lifting. In the figure, 7 is a wave, 10 is a structural metal fitting, 11 is a film, and 12 is a bar.

In addition to this, for example, there is a device disclosed in Japanese Utility Model Publication No. 58-44837. According to this invention, the lower end of the roof board is intermittently held by a holder, but since the holder merely holds the bottom end of the roof board between them, the roof board is likely to lift up if left as is. There is a concern that it may come off due to the influence of wind pressure, etc.

(Problems to be Solved by the Invention) The present invention attempts to solve the conventional problems such as workability and partial floating.

(Means for Solving the Problems) Therefore, the present invention aims at bending a transparent plastic corrugated plate having appropriate flexibility in a direction perpendicular to the direction in which the waves continue, and applying it to at least the roof portion of the greenhouse frame. At the same time, the bent end is accommodated in the U-shaped groove of the structural fitting having a U-shaped groove extending in the longitudinal direction over the entire width, and has a fixing device capable of tightening the end. The plastic corrugated plate is fixed intermittently under tension, and this is a means to solve the problem.

(Function) In the above configuration, first, a plastic corrugated plate is stretched over at least the roof portion of the greenhouse frame while being bent in a direction perpendicular to the direction in which the waves continue, and on the other hand, it is made a part of the greenhouse frame, or The lower end of the plastic corrugated plate is accommodated over its entire width within the U-shaped groove of a structural metal fitting having a U-shaped groove that is separately stretched and fixed to the frame in the lateral direction, and the lower end of the plastic corrugated plate is placed along the width direction of the plastic corrugated plate. It is fixed to the structural fitting with intermittent fasteners. At this time, the fixing device is adjusted so that the plastic corrugated plate is stretched in a direction perpendicular to the direction in which the waves continue.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. Figs. 1 and 2 are perspective views of a part of a greenhouse where fasteners are attached as an example of the present invention. In the figure 6
is a plastic corrugated plate that is transparent and has appropriate flexibility, and is bent in a direction perpendicular to the direction X-Y in which the waves 7 continue, and the greenhouse frame 5 (shown in FIG. 4; (not shown).

1 and 2 use different fixing devices, respectively. FIG. 1 shows the first embodiment, and FIG. 2 shows the second embodiment. First, in FIG. 1, reference numeral 13 denotes a fixing tool for fixing the end of the corrugated plastic plate 6 to the structural fitting 14, which connects the bracket 15 fixed to the corrugated plastic plate 6 and the threaded part 16 to the bracket 15. It consists of a hooking rod 18 whose length is adjusted and fixed with a nut 17, and a hook portion 20 that is hooked into a hole 19 provided in a structural fitting 14 is formed at the tip of the hooking rod 18. In this case, the end of the plastic corrugated plate 6 is inserted into the U-shaped groove 21 of the structural fitting 14, and the fixing tool 13 is used to attach the hook part 20 to the hole 19 from above the folded part 22 of the fitting 14. Due to the elasticity of the folded portion 22, the fastener 13 is brought into close contact with the metal fitting 14, so that the hook portion 20 and the hole 19 are engaged without play.

The fixing tool 13a shown in FIG. 2 consists of a tooth main body 23a having a large number of teeth 23 fixed to the plastic corrugated plate 6, and a claw body 24 having a claw (not shown) that engages with the teeth 23. 24 is fixed to the upper surface of the structural fitting 14, and when the tabs 25 on both sides of the claw body 24 are moved inward, the claws (not shown) are unlocked from the teeth 23, and the bottom of the claw body 24 is released. The tooth main body 23a can be moved arbitrarily.

Also, in the case of the embodiments shown in FIGS. 1 and 2, the fourth
As shown in the figure, a film 11 made of vinyl chloride or the like may be stretched by means of struts 12 fixed to the wall surface of the frame 5. As shown in this example, if the plastic corrugated sheet 6 is stretched on the roof and the film 11 is stretched on the wall, a greenhouse can be obtained that takes advantage of the characteristics of both and is advantageous in terms of cost. It may be constructed from the roof part to the wall part. Note that as the plastic corrugated plate 6 used in the present invention, any material can be used as long as it is transparent and has appropriate flexibility; for example, acrylic resin modified with a rubber component, polycarbonate resin,
Vinyl chloride resin and the like are preferred.

(Effects of the Invention) As explained in detail above, the present invention involves bending a transparent plastic corrugated plate having appropriate flexibility in a direction perpendicular to the direction in which the waves continue, and stretching it over at least the roof portion of the greenhouse frame. In addition to establishing
Its lower end is accommodated in the U-shaped groove of the structural metal fitting, and the lower end is fixed to the structural metal fitting with fasteners intermittently attached to the lower end of the corrugated plastic plate, and at the same time, the fastener By adjusting the tension force applied to the corrugated plastic sheet, the corrugated plastic sheet can be easily and reliably fixed to the structural fittings, and the corrugated plastic sheet can be tightly attached to the roof of the greenhouse frame. Since it is fixed in place, it is possible to prevent it from lifting up due to wind pressure, etc., without using any special fixing equipment. Furthermore, according to the present invention, there is no need to climb on the arch-shaped roof to work, so the structure is simpler than conventional structures, and workability is significantly improved, resulting in the use of a large amount of materials. It is not necessary to do so, and costs can be reduced.

[Brief explanation of the drawing]

FIGS. 1 and 2 are perspective views showing the state of fixation of corrugated plastic sheets by greenhouse fixing devices showing different embodiments of the present invention, and FIG. 3 is a perspective view of a conventional greenhouse during installation of plastic sheets; FIG. 4 is a front view of the conventionally proposed greenhouse, and FIG. 5 is a perspective view showing how the plastic corrugated plates are fixed. Explanation of the main parts of the diagram, 6...Plastic corrugated plate, 7...Wave, 13...Fixing tool, 14...Structural metal fittings, 15...Bracket, 18...Hook bar, 1
9... Hole, 20... Hook, 23... Teeth, 23a...
...Tooth body, 24...Claw body.

Claims (1)

[Claims for Utility Model Registration] (1) A plastic corrugated plate that is transparent and has appropriate flexibility is stretched over at least the roof portion of the greenhouse frame while being bent in a direction perpendicular to the direction in which the waves continue, and The bent end portion is housed in the U-shaped groove of a structural fitting having a U-shaped groove extending in the longitudinal direction over the entire width, and the end portion is intermittently fitted with a fastener that can be tightened. Furthermore, this greenhouse is characterized by a plastic corrugated board that is fixed in a tensile state. (2) The greenhouse as set forth in claim 1 of the utility model registration claim, characterized in that a film is stretched over the wall portion.