JPH071746U - Structure of tunnel sheet in agricultural heat insulation device - Google Patents

Abstract

(57) [Abstract] [Purpose] To make a tunnel sheet in an agricultural heat insulation device strong in connection with each component and having good air permeability. [Structure] It is composed of a synthetic resin four member consisting of a top ventilation sheet, two side sheets, and an opening / closing sheet. Each side sheet is connected to the long side of the top ventilation sheet, and one long side of the opening / closing sheet is connected to the top ventilation. In a tunnel seat structure in which a seat and a side sheet are overlapped with each other and adhered to each other, and an opening / closing sheet is detachably provided on the upper surface ventilation sheet, a connection between the upper surface ventilation sheet and the side surface sheet and an upper surface ventilation sheet The side sheet and the opening / closing sheet were connected to each other by applying a reinforcing resin film tape to the upper surface ventilation sheet and integrating them by heat fusion. The top air-permeable sheet may be formed of agricultural cloth, and the side sheet and the opening / closing sheet may be formed of agricultural olefin film and tape by agricultural vinyl acetate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a seat used for a tunnel type heat insulating device which is one of the heat insulating devices for agriculture.

[0002]

[Prior art]

 The tunnel type, which is one of the heat insulation devices for agriculture, is constructed by installing aggregates in arches at appropriate intervals on the ridges of fields and then applying a tunnel sheet on them.

The tunnel seat is composed of an upper ventilation sheet, two side sheets, and four synthetic resin members of an opening / closing sheet. Each side sheet is connected to the longitudinal side of the upper ventilation sheet to open / close the opening / closing sheet. One longitudinal side is overlapped and attached to the connecting portion of the upper surface ventilation sheet and the side surface sheet, and the opening / closing sheet is detachably provided on the upper surface ventilation sheet.

By opening and closing the opening / closing sheet, it is attached / detached to / from the upper ventilation sheet, and ventilation is performed from the texture of the upper ventilation sheet. Each sheet member is formed of an agricultural olefin film, and the side sheet and the opening / closing sheet are The film and the top ventilation sheet are made of a plain weave thread, and the members are integrally joined by heat fusion.

As described above, the side sheet and the upper surface ventilation sheet are integrally connected by heat fusion, and the upper surface ventilation sheet can be expected to have its action and effect for the purpose of ventilation. However, when the eyes are coarse, there are fewer fusion-bonded parts with the side sheets, the binding strength is weak, the durability is poor due to tearing or separation, and there is the problem that if the eyes are tight, ventilation is poor.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention is to provide a seat for a tunnel in which each member is strongly connected and has good air permeability.

[0007]

[Means for Solving the Problems]

 The present invention is composed of a synthetic resin four member including a top ventilation sheet, two side sheets and an opening / closing sheet. Each side sheet is connected to the long side of the top ventilation sheet, and one long side of the opening / closing sheet is connected to the top side. In the tunnel seat structure in which the ventilation sheet and the side sheet are superposed and attached to the connecting portion, and the opening / closing sheet is detachably installed on the top ventilation sheet, the connection between the top ventilation sheet and the side sheet is The upper ventilation sheet, the side sheet, and the opening / closing sheet are connected to each other by applying a reinforcing resin film tape to the upper ventilation sheet and integrating them by heat fusion. Further, it is preferable that the top ventilation sheet is made of agricultural cloth, and the side sheet and the opening / closing sheet are made of agricultural olefin film and tape made of agricultural vinyl acetate.

[0008]

[Action]

 In the present invention, since the reinforcing resin film tape is applied to the upper surface ventilation sheet and heat-bonded to the side surface sheet, the upper surface ventilation sheet is sandwiched between the side surface sheet and the opening / closing sheet and the tape and bonded. Therefore, in the fusion-bonded portion, a sufficiently melted resin is fused and solidified to be integrated, and in combination with the clinging force, a strong fusion-bonding force is obtained.

[0009] Furthermore, if the tape is molded with agricultural vinyl acetate, it is easy to melt and has excellent adhesiveness. The upper ventilation sheet is molded with agricultural brown cloth, and the side sheet and the opening / closing sheet are the conventional agricultural olefin film. It is possible to obtain sufficient fusing strength even when used, and by forming the top ventilation sheet with agricultural broth, it has excellent durability and the effect that a wide range of coarseness and fineness can be selected.

[0010]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional side view, in which an upper surface ventilation sheet 3 is positioned in the middle of the side surface sheets 1 and 2, and an opening / closing sheet 4 is positioned so as to cover the upper surface ventilation sheet 3.

The side sheets 1 and 2 and the opening / closing sheet 4 are made of an olefinic film for agriculture, and the top ventilation sheet 3 is a coarse cotton cloth woven from vinylon yarn for agriculture. The side sheet 1 and the top ventilation sheet are 3 is a tape 5 made of vinyl acetate film for agriculture applied to the inner surface of the top ventilation sheet 3 and integrally connected by heat fusion.

On the other side of the top ventilation sheet 3, the tape 5 similar to the above is applied to the inner surface side, the end portion of the side sheet 2 is applied to the inner surface side of the tape 5, and the outer surface side of the top ventilation sheet 3 is applied. It is heat-fused together with the end of the opened / closed sheet 4 and is integrally connected.

Therefore, the upper surface ventilation sheet 3 is fused with the side sheet 1 or the opening / closing sheet 4 with the tape 5 as desired, and the tape 5 made of vinyl acetate, which is easy to melt and has a strong adhesive force, is used to firmly bond the sheet. I will wear it.

Further, if the tape 5 is made of a material having a strong fusion property, it can be bonded to the side sheets 1 and 2 and the opening / closing sheet 4 through the eyes of the top ventilation sheet 3, so that the top ventilation sheet 3 and the side surface can be bonded together. The sheets 1 and 2 and the opening / closing sheet 4 can be freely formed and combined with different materials.

[0015]

[Effect of device]

 As described above, in the present invention, since the reinforcing resin film tape is applied to the upper surface ventilation sheet and integrated with the side sheet and the opening / closing sheet by heat fusion, it is possible to reinforce the fusion portion and strengthen the fusion force. , Has the effect of increasing durability.

Further, the strengthening of the fusion-bonded portion has the effect of enabling the selection of a coarsely woven material that serves as the ventilation holes of the upper surface ventilation sheet, and also enables the use of a different and tough resin sheet.

[Brief description of drawings]

FIG. 1 is a cross-sectional side view showing an embodiment of the present invention.

[Explanation of symbols]

 1 Side sheet 2 Side sheet 3 Top ventilation sheet 4 Open / close sheet 5 Tape

Claims (2)

[Scope of utility model registration request] 1. An upper ventilation sheet, two side sheets, and an opening / closing sheet, which are composed of four synthetic resin members. Each side sheet is connected to the longitudinal side of the upper ventilation sheet, and one longitudinal side of the opening / closing sheet is In a tunnel seat structure in which the connection between the top ventilation sheet and the side sheet is overlapped and attached, and the opening / closing sheet is detachably installed on the top ventilation sheet, the connection between the top ventilation sheet and the side sheet and the top surface The structure of the tunnel sheet in the agricultural heat insulation device, characterized in that the ventilation sheet, the side sheet and the opening / closing sheet are connected by integrating the reinforcing resin film tape to the top ventilation sheet to form a single piece by heat fusion. . 2. The agricultural heat insulating device according to claim 1, wherein the top ventilation sheet is made of agricultural cloth, and the side sheet and opening / closing sheet are made of agricultural olefin film and tape made of agricultural vinyl acetate. The structure of the tunnel seat.