JPS5820109Y2 - Hard film attachment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for fixing agricultural rigid films used when installing agricultural greenhouses.

Conventionally, soft plastic films such as vinyl chloride have been used when constructing so-called greenhouses for agriculture, but when soft films are used, their useful life is not long.

Therefore, in recent years, hard films for greenhouses have been developed to extend the service life of agricultural greenhouses, but conventional fastening devices for soft films cannot be used to fasten these hard films. There is a need for the development of effective fastening devices for rigid films.

The present invention was devised by focusing on the above points, and a long tube with support side walls formed at both ends and a clamping groove formed in the center can be inserted into the clamping groove. It is composed of a pair of symmetrically formed elongated holding members each having a hanging insertion wall at one end and a joining side wall which can be joined to the tip of the supporting side wall at the other end, A hard film is placed between the slope and the pair of elongated holding members, and the short tube is inserted into the holding groove with the pair of hanging insertion walls facing each other, and the hard film is inserted into the hanging groove. By cutting at the tip of the wall and simultaneously joining the joint side walls to the support side walls, the hard film is fixed uniformly and beautifully between the long tube and the pair of long holding members. To provide a hard film fixing device which does not cause wrinkles in the hard film and does not require the use of fixing devices such as nails, so that rainwater does not enter and even if cracks occur in the film, they do not propagate. The purpose is to

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a long tube, which has a concave groove base 3 having an upwardly wide opening 2 and an approximately C-shaped side surface.

The base body 3 is composed of a bottom wall 3a and supporting side walls 3b and 3c bent upward from both sides of the bottom wall 3a.

A pair of upright walls 5a and 5b protruding from substantially the center of the groove of the base body 3 are opposed to each other and form a narrow clamping groove 4.

Reinforcement walls 6a and 6b support and reinforce the upright walls 5a and 5b, and are connected to the tops of the upright walls 5a and 5b and the upper surfaces of the bottom walls, respectively.

7at7b is a pair of symmetrically formed elongated holding members, including main walls 8a, 8b, and a hanging insertion wall 9a that hangs downward from one end of 8a+8b and can be inserted into the holding groove 4. *9b, and the supporting side wall 3b that is bent upward from the other end of the main walls 8a and 8b.

The joint side wall 10a can be joined to the tip of the joint 3c.

10b.

With such a configuration, in order to fix the hard film F, the hard film F is placed in tension on the upper surface of the long tube material 1, and the hanging insertion walls 9 a p of the pair of long holding members 7 a and 7 b are attached. 9
b facing each other into the clamping groove 4, the hard film F is pressed and cut by the tip portions of the hanging insertion walls 9a and 9b, and at the same time the joining side walls 10 and 10b are connected to the supporting side wall 3b.

3c (Fig. 2).

The hard film F is stretched uniformly and beautifully in the fixed state, but as shown in FIG.
, 10b.

In other words, the hard films F are each attached separately via the attachment portions.

Therefore, even if a crack occurs in the two parts of the hard film F, it will not propagate to the entire hard film, and the crack will be limited to only the fixed part.

Furthermore, even if a part of the hard film is damaged, it becomes possible to replace it accordingly.

In addition, since no fasteners such as nails are used to fasten the hard film F, wrinkles around nail holes etc. do not occur.
Also, water will not enter through nail holes, etc.

In the embodiment shown in FIGS. 1 and 2, the long tube has vertical walls 5a, 5b and a reinforcing wall 6a in the groove base 3 of the material 1.
, 6b are integrally formed, but the concave groove base 3
It is also possible to form the upright walls 5a, 5b and the reinforcing walls 6a, 6b as separate bodies and make the long pipe the material 1. For example, as shown in FIG. The long tube material 1 can also be formed by integrally forming the walls 6a and 6b into a substantially triangular shape and fitting this into the groove base 3 formed separately.

Additionally, the reinforcing walls 6a, 6b and the bottom wall 3a do not necessarily have to take the shapes shown in FIGS. 1 and 2; for example, the reinforcing walls 6a as shown in FIG.

It is also possible to omit a part of the bottom wall 6b, while it is also possible to omit a part of the bottom wall 3a, as shown in FIG.

Furthermore, since the material 1 of the long pipe is long, it is easy to bend vertically, but in order to prevent this vertical bending, the long pipe is placed at the center of the bottom surface of the material, as shown in Figure 6. By hanging the elongated reinforcing material 11 on the part, it is possible to prevent the vertical bending of the reinforcing material 11.

In the figure, 12 is a mounting piece provided at the lower end of the elongated reinforcing member.

The agricultural rigid film referred to here includes rigid PVC film,
This refers to hard plastic films such as polyester films.

As described above, the present invention provides a long tube having support side walls at both ends and a clamping groove in the center, and a hanging insertion wall at one end that can be inserted into the clamping groove. The long tube is composed of a pair of symmetrically formed elongated holding members, each having a joining side wall at the other end that can be joined to the tip of the supporting side wall. A hard film is placed between the holding member and the pair of hanging insertion walls facing each other and inserted into the clamping groove, and at the same time, the joining side walls are joined to the supporting side walls. Since the long tube is a hard film fastening device that fastens between the material and the pair of long holding members, the hard film is fastened uniformly and beautifully, and no wrinkles occur. In addition, even if a crack occurs in the hard film, the crack will not propagate to the entire hard film, and if a part of the hard film is damaged, only the damaged part of the hard film can be replaced. This has the practical effect of being able to do the same thing.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 2 is a perspective view showing a fixed state of the hard film, Fig. 3 is a sectional view showing another embodiment of the invention, and Fig. 4 is a perspective view showing an embodiment of the present invention. FIG. 5 is a cross-sectional view showing still another embodiment of the present invention, and FIG. 6 is a cross-sectional view showing another embodiment of the present invention. 1...Long tubes are materials, 3b, 3c...
Supporting side wall, 4... clamping groove, 7a, 7b...
Long pressing material, 9a. 9b...Drooping insertion wall, 10a, 10b...
・Joining side wall.

Claims (1)

[Scope of utility model registration request] A long tube having supporting side walls formed at both ends and a clamping groove formed in the central part has a material, a hanging insertion wall that can be inserted into the clamping groove at one end, and a tip of the supporting side wall. a pair of symmetrically formed elongate holding members having a weldable joint side wall formed at the other end; A film is placed and inserted into the holding groove with the pair of hanging insertion walls facing each other, and the hard film is cut by the tip of the hanging insertion walls, and at the same time, the joining side wall is attached to the supporting side wall. 1. A hard film fixing device, characterized in that the hard film is fixed between the elongated tube and the pair of elongated holding members by joining each other.