JPH0219607Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a connector for connecting pipe bodies.

<Conventional Example and Problems> In order to increase heat retention or block light, curtains are sometimes installed in a greenhouse so that they can be opened and closed.

In particular, in order to improve heat retention, it is preferable to arrange a horizontal rod member made of a tube at the moving edge of the curtain so that the moving edge can be closed linearly when the curtain is closed.

It is preferable to make the horizontal rods in one piece to match the length of the greenhouse, but it is difficult to manufacture pipes according to the size, so transportation and
Management and construction work is not easy.

Therefore, horizontal rod members are formed by forming pipes of a predetermined length to fit the greenhouse.

A connector for connecting these tube bodies is shown in FIG. 4.

The one shown in FIG. 1A has a large diameter portion 101 formed in the center, and small diameter portions 102, 102 on both sides thereof.

In this case, the small diameter portions 102, 102 are connected to the tube body 10.
3, 103, and is configured so that both end surfaces of the large diameter portion 101 come into contact with the end surfaces of the tubes 103, 103. However, it lacked versatility and could easily come off.

FIG.
03 into the cylindrical body 104 from both sides and fix it by tightening the set screws 105, 105, or by forming a screw hole or the like into which the set screws 105, 105 are screwed into the tube bodies 103, 103, and tightening the setscrews. 105,
105 was screwed into the screw hole.

In the former case, the tubular bodies 103, 103 are locally pressed by the setscrews 105, 105, causing deformation of the tubular bodies 103, 103, and the workability is poor because two setscrews are tightened, and the connecting tool This resulted in large size and high cost.

In the latter case, the tubes 103, 103 are strong against the action of coming off from the connector, but the tubes 1
There were drawbacks such as a large amount of labor required to form screw holes in 03 and 103 and to match the screw holes with the screws during connection.

<Means for Solving the Problems> The present invention was proposed in order to eliminate the above-mentioned drawbacks of the conventional art, and provides a low-cost connecting device that has a simple structure, easy connection work, and safe connection strength. The purpose is to

The above purpose is to create a channel material with a screw insertion hole in the center of a substrate part that is formed in a U-shape in cross section and connects the bases of the opening pieces on both sides, and an opening in the channel material at both ends. A flat pressing material having a convex piece that can come into contact with the tip edge of the piece, a portion other than both ends formed with a width that allows entry between the opening pieces, and a female threaded hole provided in the center part. and a bolt that is inserted and screwed into a screw insertion hole and a female screw hole in the channel material and the pressing material to connect both parts, and connecting both ends of the channel material and the pressing material. When the bolt is inserted into the body and the bolt is tightened, the vicinity of the center of the pressing member approaches the base plate of the channel material, and both ends of the pressing member come into contact with the opening pieces of the channel material. This is achieved by forming a tubular body connector in which the channel material and the pressing member are configured to be able to press the inner peripheral surface of the tubular body by forming the channel member so as to be spaced apart from the distal end edge using the part as a fulcrum.

<Example> Hereinafter, the present invention will be explained based on the example shown in the drawings.

In the figure, reference numeral 1 denotes a channel material, which has a substantially U-shaped cross section.

Ribs 12, 12 protruding toward the distal end side of the opening pieces 11 are provided in the center of the opening pieces 11 on both sides, and the central part of the base plate 13 that connects the base ends of the opening pieces 11, 11 is provided. A screw insertion hole 14 is bored in the hole.

Reference numeral 2 denotes a pressing member, which has convex pieces 21 at both ends that abut against the tip edges of the opening pieces 11, 11 of the channel material.
21, 21, 21 are provided, and a female screw hole 22 is provided in the center.

The intermediate portion of the pressing member 2, that is, the portion excluding both ends, is formed to have a width that allows it to enter between the opening pieces 11, 11 of the channel member 1.

A bolt 3 is inserted through the threaded hole 14 of the channel material 1 and screwed into the female threaded hole 22 of the pressing material 2 to connect the two.

When this bolt 3 is installed and tightened, the part of the pressing member 2 where the female screw hole 22 is provided is pulled against the base plate 13, and conversely, the convex piece 2
The ends where 1... are provided are separated.

That is, when the bolt 3 is tightened, the convex piece 21
The end of the side where the female threaded hole 22 is provided contacts the tip edge of the opening pieces 11, 11 of the channel material 1, the female threaded hole 22 side approaches the base plate 13, and conversely, the end of the pressing material 2 Both edges of the substrate portion 13 are separated from the substrate portion 13.

When starting to tighten the bolt 3, the ribs 12, 12 provided on the channel material 1 are positioned between both sides of the intermediate portion of the pressing material 2, and the pressing material 2
is arranged so that it does not rotate as the bolt 3 rotates.

When installing the pipe bodies 4, 4, first, refer to Fig. 2a.
As shown in the figure, the channel material 1, the pressing material 2, and the bolt 3 are assembled, and both ends of the channel material 1 and the pressing material 2 are inserted inside the ends of the tube bodies 4, 4.

Next, the bolts 3 are tightened to press both ends of the pressing member 2 against the inner circumferential surfaces of the tubes 4, 4 (FIG. 2b).

Thus, the inner circumferential surfaces of the tubes 4, 4 receive a pressing force from the outer surface of the substrate portion 13 of the channel material 1 and both ends of the pressing member 2, and the two tubes 4, 4 are connected.

The tubes 4, 4 connected in this way are prevented from coming off by the above-mentioned pressing force, and are firmly connected.

FIG. 3 shows another embodiment of the pressing member 2, in which two pairs of notches 23, 23, 23, 23 are provided on both sides so that the pressing member 2 can be easily bent in the middle part.
It has been established.

This notch 23... is such that when the bolt 3 is tightened, the center part of the pressing member 2
3 side, but at this time it serves to bend the pressing member 2 around the female threaded hole 22 so that it does not deform.

If the pressing member 2 is formed of a spring plate, it will return to its original shape by loosening the bolt 3 and can be reused.

When the curtains of a greenhouse are gathered together and then opened, if the moving edge of the curtains gets under the gathered curtains, a portion remains behind and the curtains cannot be fully opened.

In order to prevent this, it is necessary to provide a residual prevention member on the moving edge.

In such a case, the bolt 3 may be used to fix the bolt to this, or a slightly longer bolt 3 may be used, and the protruding portion of the tip should be directed upward. It can also be used as a member to prevent leftovers.

<Effects> The present invention has the above-mentioned configuration and is composed of three parts: a channel material, a pressing material, and a bolt, and is extremely easy to manufacture and assemble because the number of parts is small.

Furthermore, since the channel material and the pressing material are large enough to be inserted into the inside of the pipe body, the connector itself is small, and materials can be saved and provided at low cost.

When connecting the pipe bodies, all you have to do is assemble the channel material, pressing material, and bolts in advance, inserting both ends of the channel material and pressing material into the inside of the pipe body, and tightening the bolts. This work is easy and can be done quickly.

Furthermore, by adjusting the degree of bending of the pressing member by tightening the bolts, it is possible to correspond to the diameter of the pipe bodies to be connected, so it is highly versatile.

[Brief explanation of the drawing]

Figure 1 shows an embodiment of the connector according to the present invention, a perspective view showing the state before assembly, Figures 2 a and b
3 is a front view showing the bolt before and after tightening, and FIG. 3 is a perspective view showing another embodiment of the pressing member.
FIGS. 4a and 4b are perspective views showing a conventional connector. 1... Channel material, 2... Pressing material, 3... Bolt, 4... Tube body.

Claims (1)

[Scope of Claim for Utility Model Registration] A channel material having a substantially U-shaped cross section and having a screw insertion hole in the center of a substrate part connecting the bases of the opening pieces on both sides, and the above-mentioned material at both ends. It has a convex piece that can come into contact with the tip edge of the opening piece of the channel material, and a portion other than both ends is formed to a width that allows it to enter between the opening pieces,
and a flat pressing member having a female threaded hole in the center thereof; and a bolt that is inserted and screwed into the screw insertion hole and the female threaded hole in the channel material and the pressing member to connect the two members, When both ends of the channel material and the pressing material are inserted into the connecting pipe body and the bolt is tightened,
The central portion of the pressing member approaches the substrate portion of the channel material, and both ends of the pressing member are spaced apart from the tip edge using the contact portion with the opening piece of the channel material as a fulcrum. A connector for a tube body, wherein the channel material and the pressing member are configured to be able to press the inner circumferential surface of the tube body.