JPS5921632Y2 - 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 agricultural 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. On the other hand, it would be uneconomical to discard the conventional fastening device and adopt a completely new fastening device.

Therefore, we used a long concave groove material with a wide opening and an approximately C-shaped side surface that was used in conventional flexible film fastening devices, and fitted an adapter made of synthetic resin, metal, etc. into the concave groove. A method was used to attach the hard film to the adapter using a presser edge, but this had the disadvantage that the adapter was expensive.

The present invention was devised by focusing on the above points, and is designed to provide a long groove material with a wide opening and an approximately C-shaped side surface. shaping a long holding material, placing a hard film between the long concave groove material and the long holding material;
By contacting and locking the fastening tool protruding downward from the long holding material with the facing inner surface of the side wall of the long concave groove material, the hard film can be fastened reliably and uniformly, and the fastening operation is also easy. It is an object of the present invention to provide a hard film fixing device that can be easily and inexpensively obtained.

An embodiment of the present invention will be described below based on the accompanying drawings.

In Fig. 1, reference numeral 1 denotes a long concave groove material having a substantially C-shaped side surface with a wide opening 2, and is the same as that constituting a part of a conventionally known fixing device for soft films. are available.

Reference numeral 3 denotes a plate-shaped elongated holding member, which has a width that is substantially the same as that of the elongated grooved groove member 1 .

4 a and 4 b are through holes, located near both ends of the plate-like elongated holding material 3 and corresponding to inner end edges 5 a and 5 b of both side walls 1 a and lb of the elongated grooved groove material 1, respectively. The holes are drilled at appropriate intervals.

The through holes 4 a and 4 b may be provided in a staggered manner as shown in FIG. 2, or may be provided at the same position on the left and right sides.

6 is a fastener such as a nail or screw, which is connected to the through holes 4a, 4
It is inserted from b by an insertion means such as driving, and its tip portion is the inner surface 2 a of the side wall 1 a, 1 b of the elongated groove material 1,
2 Contact and lock on b.

In order to improve this locking action, a locking groove such as an annular groove or a helical groove is formed at the tip of the fastener 6.

A large number of locking protrusions may be provided in place of this locking groove, or this locking groove may not be provided if the locking effect is not important.

The shape of the elongated presser material 3 is not particularly limited, and various shapes can be adopted.

In the example shown in FIG. 1, the central portion 3C of the elongated presser member 3 is curved upward to form an arc, thereby increasing the reinforcing effect.

Further, as shown in the figure, if both side edge portions 3 a and 3 b are formed into an arc shape, the contact surface with both side edge portions of the elongated groove material 1 will be widened, resulting in good bonding.

Further, in the example shown in FIG. 1, the through holes 4 a and 4 b are formed so as to be inclined in the same direction as the inclination direction of the side walls 1 a and lb, respectively.

The degree of this inclination is not particularly limited, but when the fastening tool 6 is inserted into the through holes 4a and 4b, it contacts and locks on the inner side surfaces 2a and 2b of the side walls of the elongated groove material 1 as shown in the figure. Alternatively, the inner side surfaces 2 a and 2 b of the side walls and the inserted fastening tool 6 may be parallel to each other, or the inclination may be made even larger so that only the tip of the fastening tool 6 is connected to the inner surface 2 of the side wall. a
, 2b.

In addition, the inclination can be made even smaller, and as described later, the through holes 4a and 4b are bored in the vertical direction, and the fastener 6 is inserted vertically downward to form the inside of the elongated groove material 1. Edge portion 5 a
, 5b may be contacted and locked.

In short, it is sufficient that the fastener 6 is brought into contact with and engaged with the facing inner surface of the side wall of the elongated groove material 1, which is comprised of the inner side surfaces 2a, 2b and the inner edge portions 5a, 5b.

With such a configuration, in order to fix the hard film F, the hard film F is placed on the upper surface of the long concave groove material 1, and then the long presser material 3 is placed on the hard film F, and the through hole is 4
The fasteners 6 may be driven in sequentially from a to 4b.

At this time, as shown in the figure, the through holes 4a,
4b, the fasteners 6 can be driven in an orderly manner, which improves the work procedure.

The hard film F fixed in this way has a pair of left and right fasteners 6 arranged on the inner side walls 2 a , 2 of the elongated groove material 1 .
By locking each other to b, a secure and uniform state of attachment is maintained.

As mentioned above, the shape of the long presser material 3 is not limited to the example shown in FIG. 1, and the center portion 3C of the long presser material 3 may be curved downward as shown in FIG. It is possible.

Furthermore, as shown in FIG. 4, the central portion 3C of the elongated presser member 3 can be made flat.

Furthermore, as shown in FIG. 5, the entire elongated presser member 3 may be made flat.

Further, as shown in FIG. 6, the central portion can be curved upward.

In FIG. 7, through-holes 4 a and 4 b are vertically drilled, and a fastener 6 is inserted vertically downward to contact and lock the inner end edges 5 a and 5 b of the side walls 1 a and lb. An example is shown.

Furthermore, when the through holes 4 a and 4 b are bored at the same position on the left and right and facing each other, the fastening tool 6 is made into a bifurcated fastening tool, and its two ends are connected to the respective through holes "JL4a, 4b
It can also be inserted and fixed.

In addition, although it has been described that the fastening tool 6 is driven into the through holes 4a and 4b after the hard film F is placed between the elongated concave groove material 1 and the elongated holding material 3, the fastening tool 6 is used in advance. The tools 6 are driven into the through holes 4 a and 4 b, and the long groove material 1 is passed through the hard film F placed on the long groove material 1.
The hard film F can also be fixed by pushing it into the opening 2 with a hand, foot, or the like.

In addition, without using the fastening tool 6 as a separate body, locking protrusions are provided on the bottom surface of the elongated presser member 3 at appropriate intervals, and as in the above-mentioned example, the elongated material can be inserted into the elongated shape by hand, foot, etc. The hard film F can also be fixed by pushing a locking protrusion into the opening 2 of the groove member 1.

The agricultural rigid film here means a rigid plastic film such as a rigid vinyl chloride film or a polyester film.

As described above, the present invention forms a long presser material corresponding to the long groove material for a long groove material having a substantially C-shaped side surface with a wide opening, and A hard film is placed between the concave groove material and the elongated holding material, and the fastening tool inserted through the through hole is brought into contact with the facing inner surface of the side wall of the elongated concave groove material to stop the hard film. Since it is a hard film fixing device that is designed to be attached, it can fix the hard film reliably and uniformly, and has practical effects such as easy fixing operation and low cost. It is something.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional perspective view showing one embodiment of the present invention, Fig. 2 is a plan view showing a long presser member, and Figs. 3 to 7 are sectional views showing various embodiments of the present invention. be. 1: Long concave groove material, 3: Long presser material, 4a, 4b: Through hole, 6: Fastener.

Claims (1)

[Scope of utility model registration request] A long concave groove material having a side surface substantially rolled C-shaped and having a wide opening, and an inner end edge of the inner wall of the long concave groove material having a width substantially the same as the width of the long concave groove material. It has a plate-like elongated holding material in which through holes are bored at appropriate intervals at corresponding positions, a hard film is placed between the elongated concave groove material and the elongated holding material, and the through holes are formed at appropriate intervals. A hard film fastening device that fastens a hard film by contacting and locking a fastening tool inserted through a hole with an inner facing surface of a side wall of a long groove material.