JPS6131794A - Hose band - 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 hose band, and more specifically, the present invention relates to a hose band, and more particularly, a band plate curved in a ring shape is provided with branched portions at both ends thereof, and when the band plate is reduced in diameter, The present invention relates to a hose band in which the branch portions overlap and the hook portions of the respective branch portions engage, thereby reliably and quickly tightening a rubber hose or the like to a pipe as appropriate.

Conventionally, a tightening ring is known that tightens the vicinity of the end of a rubber hose from the outside in order to reliably connect the rubber hose or the like. These rings include those using wire or a plate-shaped metal band of a constant width. Those using wires have the disadvantage that the tightening force is concentrated in a line, and although the tightening effect is great, the hose etc. are easily damaged. In this point,
In the case of a plate-shaped metal band with a constant width, the clamping force is distributed over a plane, so there is little harm to the hose, but the clamping force tends to be weak. In particular, when tightening with the elastic force of the band itself, the tightening force is weak, and in order to increase the tightening force, it is necessary to apply external force such as tightening the ends with bolts. Although it can be done, it becomes structurally complex and requires a large number of parts.

The purpose of the present invention is to eliminate the drawbacks of the above-mentioned tightening ring, to form it integrally by homing a metal plate material, to eliminate the need for hardening, to have a simple structure, and to be able to be attached to the outer periphery of a hose, etc. It is easy to reduce the diameter with a jig, tighten the hose, etc., and reliably hold it at the same diameter, and it is possible to obtain uniform sealing properties on the circumferential surface of the hose, etc., and furthermore, it is possible to reduce the diameter of the hose etc. with a jig. The purpose is to sweep the hose hand without causing any adverse effects on the boss etc. due to pressure. Its characteristics are:
In a hose band that tightens a hose by bending an elastic band-like plate into a ring shape and using both ends of the elastic band-like plate as hooking parts, the hooking parts are formed by slotting each end of the elastic band-like plate in the longitudinal direction. The plurality of branched parts at one end are formed so that there are steps approximately equal to the thickness above and below, and each branched part at the other end is formed by reducing the diameter of the elastic band-shaped plate. The thickness of the elastic band-like plate is approximately the same as that of each branch of the one end so that when A step is formed on the sliding side wall surface between the branching part at one end and the branching part at the other end, and the elastic band plate is dislocated in the direction in which the diameter of the elastic band-shaped plate decreases, and in the direction in which the elastic band-shaped plate increases in diameter. (This is where the hook is formed.)

The overall reference numeral 10 indicates a hose band, and the hose band 10 is formed by curving an elastic band-shaped plate 12 into a ring shape and configuring hook parts at both ends of the band-shaped plate 12.

At both ends of the band-shaped plate 12, branched portions 14 are formed which are branched into two in the width direction. One of these two branch parts 14 is used as a hanging piece 14a, and the other is used as a holding piece 14b,
The holding piece 14b is shifted in the outer circumferential direction by the thickness of the strip plate 12 to form a step, and the latching pieces 14a and the holding part 14b at both ends are positioned opposite to each other. In addition, the strip plate 12
When the diameter of the strip plate 12 is reduced, the hooks 14a and 14a at both ends of the band plate 12 slide onto the side wall surfaces 14c and 14c where they slide against each other, and the hooks that are attached to the strip plate 12 in the diameter expansion direction are disposed. A plurality of stop portions are formed to constitute a sawtooth row 16. Furthermore, the tip of the outer surface of the hooking piece 14a is provided with the hooking piece 14a.
In the tip portion of the outer surface of a, the hooking portion is such that both ends of the elastic band-shaped plate are bifurcated into at least two parts by making slots in the longitudinal direction, and the plurality of branched portions on one end portion are It is formed so that there is a step approximately equal to the thickness above and below, and each branch part at the other end is formed so that when the diameter of the elastic band-shaped plate is reduced, each branch part at the other end is opposite to the one end part. The respective branch parts of the one end are formed in steps that are offset by approximately the thickness of the elastic band plate in opposite directions, and the branch parts of the one end and the other end are overlapped with each other. The side wall surface Q that slides with the branching part of the elastic band-shaped plate is a lug formed like a latch part that slips off in the direction in which the elastic band-shaped plate decreases in diameter and latches in the direction in which the elastic band-shaped plate increases in diameter. This makes it easy to reduce the diameter of 12. Further, 20 is a long hole bored in the ring-shaped strip plate 12, and the hose is sometimes tightened by using the hose hand 1.
It is formed to maintain zero roundness. In other words, if the elongated hole 2o is not drilled, there is a problem that the part where the elongated hole 20 is formed is stronger than other parts and has poor springiness.To solve this problem, the elongated hole 2o is formed and the It is designed so that it is easy to tighten, has an average overall curvature ratio, and can exert a uniform tightening force on the entire circumferential surface of the bow.

This embodiment is configured as described above. Next, its effect will be explained. Fit the hose band 1o onto the hose, connect the hose to a pipe as appropriate, place the hose hand 10 at a predetermined position on the hose, and then attach the hose band 1o.
Reduce the diameter. At this time, the sawtooth rows 16 of the hooking pieces 14a move slightly in the width direction of the strip plate 12 and engage with each other,
Holding pieces 14 facing the hooking pieces 14a at both ends of the strip plate 12
b is slidably positioned along the outer peripheral surface of the opposing latching piece L4a, and even if a force in the radial direction is applied, the latching parts at both ends of the hose hand 1° do not shift in the radial direction.

On the other hand, each time the sawtooth rows 16 of the locking pieces 14a and 14b move over a mountain along the gentle slope of the sawtooth row 16, they move in the width direction and in the hooking direction. Even if a concave groove is formed in the latching piece 14a, since the taber 15 is formed on the outer surface of the latching piece 14a, the movement of the latching piece 14a in the width direction is not blocked and diameter reduction is prevented. Never. In addition, in the final stage of tightening the hose, there is no taper 15.15 and the hose is fixed at a position that has the same width as the strip plate 12, so the tightened state is maintained and the hose remains in pressure contact with the wall of the recessed groove. movement in the direction is prevented.

In addition, when connecting a hose to a pipe, a groove is provided in the pipe, and the hose is connected so as to cover this groove.
It is effective to tighten the hose hand along the concave groove from the outer circumferential surface of the hose to further enhance the tightening effect. Although it moves in the width direction of 10, the latching piece 14a
Since a taper 15 is provided on the outer surface of the tip, it can be tightened in a limited space by following the concave groove of the pipe.

In addition, in the above embodiment, the branch portions 14 at both ends of the strip plate 12
Although two are formed, three, four, etc. may be formed in the same way, and the same effect will be achieved.

It is also suitable for wide hose hands.

Since the present invention is formed as described above, it is possible to combine the tape-shaped metal material with other members by simply homing it, or to form it integrally without adding any welding process. Since it can be automatically mass-produced and does not require elasticity, it does not require quenching after processing, and manufacturing costs can be kept low.

In addition, since it can be attached to a hose in the form of a ring with a sufficiently large diameter, it is easy to attach, and the diameter can be easily reduced using a jig to tighten the hose, etc., and the serrations on the latching pieces at both ends. As the rows engage with each other, the retaining pieces prevent the retaining pieces from shifting due to outward deformation in the radial direction and are securely engaged, making it possible to reliably hold the hose at its original diameter and tightening the hose with strong force. Because it is possible to attach the band to a certain width, it is possible to press the hose, etc. evenly with a large force, and it has great effects such as being able to stably hold the hose without damaging it or loosening for a long period of time. play.

Although the present invention has been variously explained above with reference to preferred embodiments, it goes without saying that the present invention is not limited to the above-mentioned embodiments. It goes without saying that many modifications may be made without departing from the spirit of the invention.

[Brief explanation of drawings]

The drawings show preferred embodiments of the invention, with FIG. 1 being a developed view;
FIG. 2 shows a front view, and FIG. 3 shows a plan view. 10... Horse hand, 12... Strip plate. 14... Branch part, 14a... Latching piece, 14
b... Pressing piece, 14c... Side wall surface, 15.
...Theba, 16...Sawtooth row, 18...
Ear piece, 20...long hole.

Claims (1)

[Scope of Claims] 1. A hose band that tightens a hose by bending an elastic band-like plate into a ring shape and using both ends of the elastic band-like plate as hooking portions, wherein the hooking portions are provided at both ends of the elastic band-like plate. Each section is divided into at least two parts with slots in the longitudinal direction, and the plurality of branched parts at one end are formed so that there are steps approximately equal to the thickness above and below, and each branched part at the other end is is such that when the elastic band-shaped plate is reduced in diameter, each branch part of the other end overlaps with the opposing branch part of the one end part,
The respective branch portions at the one end are formed in steps that are offset by approximately the thickness of the elastic band plate in opposite directions to each other, and on the sliding side wall surface of the branch portion at the one end and the branch portion at the other end. , a hose band formed with a hook part that slips off in the direction in which the diameter of the elastic band-shaped plate decreases, and that catches in the direction in which the elastic band-shaped plate increases in diameter.