JPH0670646A - Conduit for vinyl plastic hothouse - Google Patents

Abstract

PURPOSE:To enable production of a low-cost conduit free from rust, to facilitate a work for setting a roof on the conduit and to improve lighting in the vinyl plastic hothouse. CONSTITUTION:In a vinyl plastic hothouse constructed by arranging two or more rows of half-cylinder-shaped roofs each formed by stretching a vinyl sheet over curved beams each having a circular arc shape in parallel, the joint part between both the lower end parts of the respective roofs constitutes a conduit 1 having a U-shaped cross section. The U-shaped cross section is composed of a horizontal bottom wall 21 and both the side walls existing on both the sides thereof and opened toward the upper direction. Rugged parts 6 for preventing slippage are formed on the inner surface of the bottom wall 21 and beam-fixture parts are formed on both the side walls. The above-mentioned structure is monolithically formed by using a transparent or translucent FRP.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gutter which is a constituent member of a greenhouse for cultivating vegetables and the like.

[0002]

2. Description of the Related Art Recently, so-called vinyl greenhouses for cultivating vegetables have been widely used. Of this greenhouse, there are two types of roofs that are formed by attaching vinyl sheets to a beam curved in an arc shape.
In a large-scale greenhouse formed by juxtaposing more than one row, lower ends of both sides of each roof are connected by a gutter having a U-shaped cross section, and the gutters are supported by columns at predetermined intervals. And this gutter is made of galvanized thin steel plate U
It is formed by bending it into a letter shape, and this gutter supports the lower ends of the roofs on both sides and also has the function of guiding the water from the roof to a predetermined place.

[0003]

In the above structure, it takes a lot of time and labor to form a trough into a shape in which locking portions for connecting and supporting the roofs on both sides are formed and a plating process. In addition, the manufacturing cost is high, and the worker needs to walk on the gutter when installing or relining the roof, but this has the drawback that it is slippery and that the gutter easily rusts after long-term use. In addition, the gutter has a certain width and extends from one end to the other end of the vinyl house, so even if the roof part is made of a transparent vinyl sheet to allow light to pass through, the gutter part will not There is also a problem that it is inevitable that a considerable amount of the area will not be exposed to the crops inside the greenhouse due to the gutter that does not pass through.

The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, can be manufactured at a low cost, does not cause rust, can be easily installed on a roof on a gutter, and has an internal structure. The purpose of the present invention is to provide a gutter for a greenhouse that can provide good lighting.

[0005]

DISCLOSURE OF THE INVENTION According to the present invention, in a vinyl house formed by arranging two or more rows of kamaboko type roofs formed by arranging vinyl sheets on beams curved in an arc shape, both sides of each roof are formed. A gutter having a U-shaped cross section connecting between the lower end portions, and having a U-shaped cross section formed from a horizontal bottom wall and both side walls of the upper opening on both sides thereof, and an inner surface of the bottom wall. The ruggedness has a non-slip surface.

It is preferable that the gutter is made of a transparent or semi-transparent FRP, and beam locking portions are integrally formed on both side walls. Further, a connecting portion is integrally formed at one end in the length direction of the gutter, and the bottom wall and both side walls are respectively guttered outward so that the ends of the adjacent gutters are butted and the inner surface of the gutter is flush. It is preferable that the connecting portion is configured so as to be expanded by the plate thickness and contact the outer surface of the end portion of the adjacent gutter.

[0007]

With the above construction, since the gutter is made of FRP, it does not rust even after long-term use and has excellent durability.
And it is lightweight. In addition, the gutter has multiple side walls bent to improve rigidity and form a locking portion,
Moreover, the bottom wall has a complicated shape with unevenness for preventing slippage, but it can be easily manufactured into a predetermined shape because it can be manufactured by FRP mold molding, and for roof installation. In addition, even when an operator walks on the gutter, there is an advantage that the work is easy to perform because the bottom wall is provided with a slip stopper.

When the gutter is made of transparent or translucent FRP, the portion corresponding to the gutter does not become shaded in the vinyl house, which is very preferable for the growth of crops. Furthermore, if a connection part is formed at one end of the gutter, even if the gutter is connected in the length direction, it is easy to make the inner surface flush by combining the gutters adjacent to this connection part. The connection work of the gutter can be performed very easily.

[0009]

EXAMPLE In FIG. 1, a gutter 2 having a U-shaped cross section is supported by columns 1 installed at predetermined intervals, and two or more rows of semi-cylindrical roofs are juxtaposed to form a gap between the lower end portions on both sides of each roof. Are connected and supported by the gutter 2 and are surrounded by side walls (not shown).
A vinyl house is formed surrounding the field where 00 is planted.

In the illustrated example, the gutters 2 are arranged in two rows, and the two gutters 2 are connected to each other by a main beam 11 curved in an arc shape of the roof. The main beams 11 are installed at a predetermined large interval to serve as a strength member, Auxiliary beams 12 are installed between the main beams 11 at a smaller pitch, and a reinforcing member 13 extending in the vertical direction is attached across the main beams 11 and the auxiliary beams 12 to form a roof frame. Then, a vinyl sheet 14 is stretched from the upper side with respect to this skeleton, and the vinyl sheet 14 is fixed by pressing the upper side with a tightening rope 15 along the auxiliary beam 12, thereby forming a chamfered roof. .

The gutter 2 is constructed as shown in FIGS. That is, the gutter 2 includes a horizontal bottom wall 21, an upwardly opening first side wall 22 rising from both sides thereof, an upper second side wall 23 thereof, an upper third side wall 24 thereof, and an outward horizontal direction from the upper side thereof. Is formed in a U-shaped cross section with a fourth side wall 25 extending to the upper side and a fifth side wall 26 on the upper side of the fourth side wall 25. In addition, the connecting portion 4 is integrally formed at one end portion in the length direction, and the end portions of the adjacent gutters 10 are abutted to each other as shown by an imaginary line in FIG. The bottom wall 21 and both side walls are spread outward so as to be flush with each other by the step thickness 40 by the plate thickness of the gutter 1, and the inner surface of the connecting portion 4 contacts the outer surface of the end portion of the adjacent gutter 10. The connecting portion 4 is configured to do so. Also the bottom wall 2
The inner surface of 1 is formed with an uneven portion 6 for preventing slippage, and is integrally formed by FRP in such a shape.

The gutter 1 may be made of an opaque FRP, but is preferably made of a transparent or semi-transparent FRP in order to improve the lighting in the greenhouse.

Through holes 5 are formed in the fourth side wall 25 at a predetermined interval. As shown in FIG.
I am trying to install 2. Further, a through hole 51 is also formed in the first side wall 22, an eye bolt 3 is attached to the through hole 51, a locking rod 30 is installed in parallel with the gutter 2 through the eye bolt 3, and the fastening rod 30 is tightened as described above. Rope 1
I am trying to stop the end of 5. Further, the second side wall 23
A bolt hole 52 for coupling with an adjacent gutter 10 is formed in the connecting portion 4 corresponding to.

In the above construction, since the gutter 1 is made of FRP, it is excellent in durability and light in weight without rusting even after long-term use. In addition, in the gutter 1, side walls are bent in multiple steps in order to improve rigidity and form a locking portion, and the bottom wall 21 has an uneven portion 6 for preventing slippage.
Although it has a complicated shape, it can be easily manufactured into a predetermined shape because it can be manufactured by FRP molding, and when an operator walks on the gutter 1 to install a roof. Further, since the bottom wall 21 is provided with the slip prevention, there is an advantage that the work can be easily performed. Further, it is possible to lock the auxiliary beam 12 by providing the through hole 5 and pushing the end portion of the auxiliary beam 12 into the through hole 5, and thereby preventing the position of the auxiliary beam 12 from being displaced due to wind and rain by a simple locking method. it can.

When the trough 1 is formed of transparent or translucent FRP, the portion corresponding to the trough 1 is also not very shaded in the vinyl house, which is very preferable for the growth of crops. Furthermore, when connecting the gutter 1 in the longitudinal direction, the gutter 1
When the connection part 4 is formed at one end of the, the gutter adjacent to this part as shown in FIG. 3 can be easily combined so that the inner surfaces are flush with each other by overlapping and combining the gutters. The connection work of the gutter can be easily performed.

[0016]

As described above, according to the present invention, since the gutter is made of FRP, it does not cause rust even after long-term use and has excellent durability and is lightweight. In addition, the gutter has a complicated shape in which side walls are bent in multiple steps to improve rigidity and to form a locking portion, and an uneven portion for preventing slippage is formed on the bottom wall. Since it can be manufactured by molding, it can be easily manufactured into a predetermined shape, and even when the worker walks on the gutter to install the roof, the bottom wall has a non-slip surface. There is an advantage that it is easy to work.

When the gutter is made of transparent or translucent FRP, the portion corresponding to the gutter does not become shaded in the vinyl house, which is very preferable for the growth of crops. Furthermore, if a connection part is formed at one end of the gutter, even if the gutter is connected in the length direction, it is easy to make the inner surface flush by combining the gutters adjacent to this connection part. The connection work of the gutter can be performed very easily.

[Brief description of drawings]

FIG. 1 is a perspective view of a vinyl house showing an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of a gutter.

FIG. 3 is a central longitudinal sectional view of FIG.

FIG. 4 is an enlarged cross-sectional view of the gutter mounting portion of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support 2, 10 Gutter 4 Connection part 5 Through hole for locking 6 Uneven part for slip prevention 11 Main beam 12 Auxiliary beam 21 Bottom wall 22 First side wall 23 Second side wall 24 Third side wall 25 Fourth side wall 26th 5 side walls

Front Page Continuation (72) Inventor Sada Kimoto Himeto-cho, Amakusa-gun, Kumamoto, Nigata 5995, Yamaha Amakusa Manufacturing Co.

Claims (3)

[Claims] 1. A semi-cylindrical roof formed by stretching a vinyl sheet on a beam curved in an arc shape.
In a vinyl house that is formed by arranging more than one row, it is a gutter with a U-shaped cross section that connects the lower ends of both sides of each roof, and crosses from a horizontal bottom wall and both side walls that are open upwards on both sides. A gutter for a greenhouse, characterized in that the surface is formed in a U-shape and the inner surface of the bottom wall is provided with unevenness for preventing slippage. 2. The gutter for a greenhouse as claimed in claim 1, wherein the gutter is made of transparent or semi-transparent FRP, and beam locking portions are integrally formed on both side walls. 3. A connection portion is integrally formed at one end portion in the length direction of the gutter, and the bottom wall and both side walls are formed so that the end portions of the adjacent gutters are abutted to each other so that the inner surface of the gutter becomes flush with each other. 3. The gutter for a greenhouse according to claim 1 or 2, wherein each of the connecting parts is expanded outwardly by the thickness of the gutter, and the connecting portion is configured to come into contact with an outer surface of an end part of an adjacent gutter. .