JPS59137696A - Bundling instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a binder used to connect two members.

Conventionally, for example, when connecting a hose to a hose wire and tightening it to prevent the hose from coming off, (1) wrap a thin wire around the end of the hose an appropriate number of times, align both ends of the thin wire, and use pliers to tighten the hose. (2) A tightening band is attached to the end of the hose, and a machine screw is rotated with a tool such as a screwdriver to press the tightening band onto the outer circumferential surface of the hose. However, in the tightening method (1), the thin twisted wire may break, and if women and children are not used to it, it is difficult to obtain an appropriate adhesion strength, and it is time-consuming. Next, in the tightening method (2), since each tightening band has a width, it is not possible to obtain the adhesion strength that can be achieved by tightening each band one by one with thin wire, and there are disadvantages such as the possibility of loosening during long-term use. .

SUMMARY OF THE INVENTION In view of the above drawbacks, it is an object of the present invention to provide a binding device that can connect two members relatively easily.

The gist of the invention is to form a ratchet portion that meshes with the inner periphery of first and second annular fastening fittings that fit together, insert a coil spring into both fittings, and connect one end of the coil spring to the first annular tightening fitting. The other end of the annular tightening fitting is connected to the second annular tightening fitting, and the first and second annular tightening fittings are rotated in opposite directions to connect the two members by the elastic action of the coil spring. It is composed of

Embodiments of the present invention will be described below with reference to FIGS. 1 to 7.

In FIG. 1, 1 is a plastic pipe, and 2 is a rubber hose connected to the plastic pipe 1. 3, as shown in FIG. 3, the inner diameter of the intermediate part 3A is slightly larger than the outer diameter of the rubber hose 2, and the inner diameter of both end parts 3B and 3C is made considerably larger than the inner diameter of the intermediate part 6A, so that a circular tube is formed. It is a tension coil spring formed by winding into a shape, and bent portions 3D and 3E facing in opposite directions are formed at both ends 3B and 3C, respectively. Reference numeral 6 shown in FIGS. 1 and 4 is a first annular fastening fitting having a hexagonal outer shape. A circular groove 8 is formed, and a ratchet portion 8A having an appropriate number of teeth is carved at the bottom of the groove 8. Further, annular grooves 9 and 10 are formed at both ends of the inner cylinder portion 12, respectively.

Reference numeral 11 denotes a partition wall portion, and the outer cylinder portion 7 is separated by the partition wall 11.
and the inner cylinder portion 12 are integrally formed. Reference numeral 13 denotes a through hole bored in the partition wall 11 and communicates with the grooves 9 and 10.

Reference numeral 16 shown in FIGS. 1 and 6 is a second annular fastening fitting having a hexagonal outer shape. A ratchet portion 18A that meshes with the ratchet portion 8A is carved. Furthermore, annular grooves 19 and 20 are formed at both ends of the inner cylinder portion 22, respectively. 21 is the partition wall part,
The outer cylinder part 17 and the inner cylinder part 22 are integrally constituted by the partition wall part 11. Reference numeral 23 denotes a through hole bored in the partition wall 21, which communicates with the grooves 19 and 20.

Next, the procedure for assembling the first and second fastening fittings 6, 16, tension coil spring 3, etc. will be explained. First, the bent portion 3D of the tension coil spring is inserted into the through hole 13 of the first annular tightening fitting 6, and then the end portion 3B of the tension coil spring 3 is brought into contact with the bottom surface of the groove 9. The outwardly protruding bent portion 3D is fixed using a suitable tool (for example, flattened or bent). Next, the bent portion 3E of the tension coil spring 3 is inserted into the through hole 23 of the second annular tightening fitting 16, and then the end portion 3C of the tension coil spring 3 is brought into contact with the bottom surface of the groove 19, and then removed. The circumferential tip of the cylindrical portion 17 is inserted into the groove 8 of the first fastening fitting 6 to engage the ratchet portions 8A and 18A. Next, the bent portion 3E protruding outward from the through hole 23 is processed to prevent it from coming out (for example, flattened or bent) using a suitable tool, and then attached.

Next, the operation (tightening procedure) of the binder of the present invention having the above-mentioned configuration will be explained.

First, after inserting the rubber hose 2 into the plastic pipe, attach the binder to a predetermined position on the rubber hose 2, support the first annular tightening fitting 6 with a wrench (not shown) held in one hand, and use the other hand to support the first annular tightening fitting 6. When the first and second clamping brackets 6.16 are rotated in opposite directions while supporting the second annular clamping bracket 16 with a gripped wrench (not shown), the tension coil spring 3 is moved to the end 3B. , 3C toward the intermediate portion 3A, and the rubber hose 2 is tightly connected to the plastic pipe 1 so that the rubber hose 2 is tightened. After tightening the rubber hose 2 with the required tightening force,
A wrench (not shown) is attached to the first and second annular fasteners 6.
, 16, these two metal fittings 6, 16 try to rotate in the opposite direction to the tightening direction due to the restoring action of the tension coil spring 3, but the ratchets 8A, 1 in the two metal fittings 6.16
Since 8A is engaged, rotation is prevented. The rubber hose 2 thus remains firmly connected to the plastic 1.

After that, when replacing the rubber hose 2 due to aging, for example, use a suitable tool (for example, a flat head screwdriver)
When it is inserted into the space U formed between the annular tightening fitting 6 and the second annular tightening fitting 16 and rotated by about 90 degrees, the space U is expanded and the engagement between the ratchets 8A and 18A is released. Ru.

In this way, both metal fittings 6 mentioned above are removed by the restoring action of the tension coil spring 3
, 16 are rotated in the opposite direction to that during tightening, and the tension coil spring 3 is also returned to its original state, so that the rubber hose 2 can be easily removed from the plastic pipe 1. Therefore, after purchasing a renewed rubber hose 2 to the plastic pipe 1, the rubber hose 2 and the plastic pipe 1 can be firmly connected using the binder according to the tightening procedure described above.

As described above, the binder according to the present invention is composed of the first and second annular fastening fittings and the coil spring, which have a relatively simple structure, and the elastic force of the coil spring always strengthens the two members. Since it acts to tighten, it is possible to connect safely and reliably for a long period of time, and it is also easy to attach and detach.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a sectional view showing a state in which two members are connected, Fig. 2 is a view taken in the direction of arrow A shown in Fig. 1, and Fig. 3 is a front view of the tension coil spring. 4 is a sectional view of the first annular fastening fitting, FIG. 5 is a view taken in the direction of arrow B shown in FIG. 4, FIG.
It is a view taken along arrow C shown in the figure. 5... Coil spring (tension coil spring), 6... First annular tightening fitting, 8A... Ratchet part, 16... Second annular tightening fitting, 18A... Ratchet part.

Claims (1)

[Claims] a first annular tightening tool having a ratchet portion formed on the inner periphery;
A second annular fastening fitting having a ratchet portion formed on a circumferential portion of the distal end thereof to engage with a ratchet portion of the first annular fastening fitting, the first annular fastening fitting and the first annular fastening fitting being fitted together. A binding device characterized in that a coil spring is inserted into the interior of two annular fastening fittings, one end of the coil spring is attached to the first annular fastening fitting, and the other end is attached to the second annular tightening fitting.