JPH08170451A - Connected structure of plastic fence - Google Patents

Abstract

PURPOSE: To enhance workability in assembling and dismantling a plastic fence and to enhance its appearance by preventing fouling of the fence due to construction work. CONSTITUTION: To connect the hollow pole 1 and the hollow horizontal member 2 of a plastic fence together, the hollow pole 1 is provided with a slot 6 for the hollow horizontal member 2, at least one pair of locking holes 7 are provided near the open end of the hollow horizontal member 2, a clip member 9 having recessed locking portions 8 at both ends is inserted into the hollow horizontal member 2, and the recessed locking portions 8 are projected from the locking holes 7 of the hollow horizontal member 2. The edges of the slot 6 of the hollow pole 1 are locked to the recessed locking portions 8 of the clip member 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for a plastic fence, and more particularly to a connecting structure which is detachable and which allows disassembling and assembling of a plastic fence in a high workability.

[0002]

2. Description of the Related Art As shown in FIG. 5, a pillar a and a horizontal member b of a conventional plastic fence are connected by inserting a horizontal member b into a hole c formed in one side of the pillar a and joining the joints. Has been adopted mechanically using a steel member d such as bolts and nuts, and as shown in FIG. 6, a method of physically connecting similar joints with an adhesive or resin welding e. It was

[0003]

However, the former method has the drawback that it takes time to construct it, and the rust impairs the appearance and weakens the bonding force. The latter method disassembles or reassembles the plastic fence once constructed. During construction, it is difficult to remove the joined joint members, stains due to dripping or adhesion of the adhesive, poor appearance due to traces of resin welding, etc. Furthermore, it takes time for the adhesive to become strong. Therefore, a reinforcing member was required to maintain the bonded state. Therefore, an object of the present invention is to improve the workability in assembling and disassembling a plastic fence, and to prevent stains due to the work and enhance the appearance.
It is to provide the connection structure of plastic fence.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a method for connecting a hollow pillar of a plastic fence to a hollow horizontal member,
An insertion port for the hollow horizontal member is provided on the hollow column, at least one pair of locking ports is provided near the opening end of the hollow horizontal member, and a clip member having concave locking portions at both ends is inserted into the hollow horizontal member. The concave locking portion is projected from the locking opening of the hollow horizontal member, and the edge of the insertion opening of the hollow strut is locked to the concave locking portion of the clip member.

The present invention will be described in detail below with reference to FIGS. 1A and 1B show the entire plastic fence to which the present invention is applied. FIG. 1A is a front view and FIG. 1B is a side view. FIG. 2 shows the details of the connecting portion between the hollow pillar and the hollow horizontal member of the plastic fence shown in FIG. 1, and FIG. 2 (a) is a cross section taken along the line AA of FIG. 1 (b). A plan view, FIG. 2B is a partial vertical cross-sectional front view of the same taken along the line BB, and FIG. 2C is a partial vertical cross-sectional side view taken along the line C-C of FIG. 1A. FIG. 3 relates to the clip member shown in FIG.
FIG. 3A is a plan view and FIG. 3B is a side view. FIG. 4 is a plan view of a clip member of another mode. In each of these figures, 1 is a hollow pillar, 2 is a hollow horizontal member, 3
Is a panel, 4 is a cap, 5 is a leg, 6 is an insertion opening, 7 is a locking opening, 8 and 18 are concave locking portions, 9 and 19 are arm portions, 10 and 20.
Is a clip member, 11 and 12 are a side wall and a vertical groove of the concave locking portion, 21 is a hinge, and 22 is a spring.

As shown in FIGS. 1 to 3, a plastic fence to which the present invention is applied includes a hollow pillar 1, a hollow horizontal member 2 which is removably attached to the hollow pillar 1, and a hollow horizontal member on the hollow pillar 1. It comprises a clip member 10 for locking and fixing both when the member 2 is mounted. There is an insertion port 6 having a shape corresponding to the cross-sectional shape of the hollow horizontal member 2 on one side or both sides of the hollow column 1, and at least one pair of locking ports 7 on both sides near the opening end of the hollow horizontal member 2. It is provided. On the other hand, the clip member 10 has a U-shaped arm portion 9 having an elastic repulsive force to the outside, and a concave locking portion 8 having a size corresponding to the pair of locking holes 7 provided at both ends thereof. The concave locking portion 8 is provided with a vertical groove 12 having a width corresponding to the end edge of the insertion opening 6 of the hollow strut 1 while the side wall 11 on the arm 9 side is inclined outward by 20 to 60 °. ing.

In assembling the fence, first, when the clip member 10 is inserted from the open end of the hollow horizontal member 2, the concave locking portion 8 is fitted into the locking opening 7 and locked. Next, when the hollow horizontal member 2 to which the clip member 10 is locked is inserted into the hollow column 1 through the insertion port 6, the concave locking portion 8
The inclined side wall 11 hits the edge of the insertion opening 6 to push the concave locking portion 8 inward once, and then the vertical groove of the concave locking portion 8 is formed.
At the time when the edge of the insertion opening 6 approaches the arm 12,
The recessed locking portion 8 is pushed outward by the elastic repulsion and the edge of the insertion opening 6 is locked in this vertical groove 12, whereby the locking and fixing of the hollow horizontal member 2 to the hollow strut 1 is achieved. . The radius R of the arm portion 9 of the clip member 10 is equal to the arm portion 9
It is appropriate to set the pressing force of the concave locking portion 8 to about 1/4 of the total length. On the other hand, when disassembling the fence,
After the concave locking portion 8 protruding from the locking opening 7 of the hollow horizontal member 2 is pushed into the hollow horizontal member 2 with a nail or the like, and is detached from the edge of the insertion opening 6 of the hollow strut 1 and temporarily fixed. It can be easily performed by pulling out the hollow horizontal member 2 from the insertion port 6 of the hollow column 1.

The connection structure of the plastic fence according to the present invention is not limited to the illustrated shape, but various modifications or additions can be adopted without departing from the spirit of the present invention. For example, the cross-sectional shape of the hollow pillar 1 and the hollow horizontal member 2 may be a polygon such as a triangle, a quadrangle, and a pentagon, a circle, an ellipse, a semicircle, and the like. preferable. As shown in FIG. 2, one or more pairs of upper and lower locking ports 7 may be provided near the opening end of the hollow horizontal member 2, and clip members may be attached to each of them, whereby the hollow horizontal member 2 may be hollow. The locking / fixing to the column 1 can be made stronger. In addition to the above-mentioned shape, the clip member may be of any shape as long as it has an elastic repulsive force capable of pressing the concave locking portion to the outside. For example, as shown in FIG. The arm 19 provided with the stopper 18 may be connected by a hinge 21 and the spring 22 may be interposed between the arms 19.

The material of the clip member is, for example, polypropylene resin, polyethylene terephthalate resin,
Hard thermoplastic resins such as polycarbonate resins and hard thermosetting resins such as phenolic resins, melamine resins and unsaturated polyester resins that have spring function, that is, elastic recovery performance, and Rockwell hardness of the resin. And R80 or more is preferable. In addition, there is no problem in terms of material as long as it is a general material other than the above and has a spring function and satisfies the above hardness, such as spring steel.

[0010]

A clip member having concave locking portions at both ends is inserted into the locking opening near the opening end of the hollow horizontal member so that the concave locking portion projects from the locking opening of the hollow horizontal member. The hollow pillar of the plastic fence and the hollow horizontal member are connected to each other by inserting the hollow pillar into the insertion opening of the hollow pillar and locking the edge of the insertion hole of the hollow pillar into the concave locking portion.

[0011]

EXAMPLE Next, the connection structure of the plastic fence of the present invention will be described by way of examples. As a material for a plastic fence, hollow stanchions of 75 mm x 75 mm and a thickness of 3 mm obtained by extruding hard vinyl chloride resin, and 50
A hollow horizontal member having a size of 30 mm and a thickness of 3 mm was prepared. The ratio of the outer width of the concave locking portion of the clip member to the inner width of the locking opening of the hollow horizontal member, and the ratio of the width of the insertion port end edge of the hollow strut to the inner width of the concave locking portion of the clip member, Respectively
It was set to 0.1 mm or more and 0.2 mm or less. When the movable plastic fence shown in FIG. 1 was assembled, the total assembly time was 30 minutes when using members such as metal bolts and nuts, but when the connection structure of the present invention was used, It was 3 minutes. Further, the assembly time when the synthetic rubber adhesive was used was 10 minutes, but it took 3 hours before the fence could be used after the adhesive was solidified. Also, the time taken to disassemble and store these plastic fences is
3 minutes with this connection structure, 30 minutes with a metal member,
When the synthetic rubber adhesive was used, the plastic fence was damaged and became unusable. Regarding the strength and rattling state of the plastic fence after assembly, this connection structure and other connection structures were the same.

[0012]

Since the plastic fence connection structure of the present invention uses the clip member having the spring function to connect the hollow support and the horizontal member, the hollow support and the horizontal member can be attached and detached easily. It will be easier, and the time required for assembling and disassembling the plastic fence will be greatly reduced, leading to a reduction in labor costs. Moreover, since a metal bolt or the like is not used, a good fence appearance can be maintained.

[Brief description of drawings]

1A and 1B show an example of a plastic fence to which the present invention is applied. FIG. 1A is a front view and FIG. 1B is a side view.

FIG. 2 shows details of a connecting portion between a hollow column and a hollow horizontal member of the plastic fence shown in FIG. 1, and FIG. 2 (a) is a cross section taken along the line AA of FIG. 1 (b). FIG. 2 (b) is a partial vertical sectional front view taken along the line BB, and FIG. 2 (c) is a partial vertical sectional side view taken along the line CC of FIG. 1 (a). .

3 is related to the clip member shown in FIG. 2, FIG.
Is a plan view, and FIG. 3B is a side view.

FIG. 4 is a plan view of a clip member of another mode.

FIG. 5 is a perspective view showing a connection structure using a conventional bolt or the like.

FIG. 6 is a perspective view showing a connection structure using a conventional adhesive.

[Explanation of symbols]

1 ... Hollow column, 2 ... Hollow horizontal member,
3 ... Panel, 4 ... Cap, 5 ... Leg,
6 ... insertion port, 7 ... locking port,
8, 18 ... Recessed locking part, 9, 19 ... Arm part, 10, 2
0 ... Clip member 11 ... Side wall, 12
Vertical groove, 21 hinge, 22 spring. a
・ ・ ・ Posts, b ・ ・ ・ Horizontal members,
c ... Hole, d ... Steel member, e ... Adhesive, resin welding, etc.

Claims (1)

[Claims] 1. When connecting a hollow post of a plastic fence to a hollow horizontal member, the hollow post is provided with an insertion port for the hollow horizontal member, and at least 1 is provided near the opening end of the hollow horizontal member.
A clip member having a pair of locking openings and concave locking portions at both ends is inserted into the hollow horizontal member so that the concave locking portion protrudes from the locking opening of the hollow horizontal member, and the concave locking member of the clip member is inserted. A connection structure for a plastic fence, characterized in that an end edge of an insertion port of a hollow strut is locked to a stop portion.