JPS629011A - 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 [Field of Industrial Application] The present invention relates to a hose band for fixing a hose in a tightened state.

[Conventional technology]

Traditionally used hose bands with open ends are
As typified by FIG. 12, the metal band member 2 constituting the hose band 1 is rolled into a ring shape, and with both ends of the band member 2 overlapped inside and outside, the claws 3 and holes 4 are
After fitting, as shown in FIG. 13, the hose is tightened by compressing and plastically deforming the ear portion 5 to reduce the ring diameter.

[Problem that the invention seeks to solve]

However, in the above conventional products, when tightening, a gap equivalent to the thickness of the plate is formed at part a on the tip side of the inner end 6, so the inner surface of the ring is not continuous in the circumferential direction, and part a In this case, the sealing performance deteriorates.

As a countermeasure against this problem, as shown in FIG. 14, there is also a structure in which a step 7 corresponding to the plate thickness is formed at the intermediate portion in the longitudinal direction of the strip member 2. However, in this case as well, it is unavoidable that a gap will be created in the b section due to dimensional variations and the sealing performance will be deteriorated.

Means for Solving Problem C] The present invention consists of a metal band-like member with both ends open, and the band-like member is formed into a ring shape, and the both ends are stacked on each other inside and outside. Applies to hose bands that are fixed. In the present invention, one end located on the inner side of the above-mentioned both ends is provided with a protrusion that protrudes toward the distal end side of the band member on a part of the end face in the width direction, and the other end with which this end overlaps is provided. A part of the strip member is divided into two or more rows in the width direction by forming a line 1- continuous in the longitudinal direction of the strip member on the surface.

[Effect]

In the hose band with the above configuration, the shape of one end located on the inside is non-linear in the board width direction, and the surface on the other side where this end overlaps is divided into two or more rows of divided parts. Even if a gap occurs on the tip side of the inner end of the strip member in each divided portion when tightened, the position where the gap occurs can be shifted in the circumferential direction of the hose for each divided portion. Therefore, the gaps created in each divided portion are tightened by complementing each other, and as a result, the hose is tightened in the circumferential direction without any gaps, resulting in good sealing performance.

〔Example〕

In one embodiment shown in FIGS. 1 to 6, the hose band 10 consists of a band-shaped member 11 made of metal, such as stainless steel. Both ends 11a of this strip member 11
, 11b are each open free ends. The band member 11 is rolled into a ring shape when in use, and both ends 1
1a and 11b are stacked on each other inside and outside, and a hole 2, which will be described later, is formed.
0 and the claw 22 are engaged with each other.

As shown in FIG. 2, one end 11a located inside the band has a strip member 11 attached to a part of the end face in the width direction.
A protrusion 12 is provided which protrudes stepwise in the longitudinal direction.

On the other hand, a mating surface 11C that overlaps the outside of the end portion 11a
, a slit 14 continuous in the longitudinal direction of the strip member 11 is provided.
is formed. A part of the band member 11 is divided into two in the width direction by the slit 14, and a pair of divided portions 16 and 17 are formed on both sides of the slit 14.

Moreover, at the other end 11b located on the outside of the band,
A plurality of holes 20 (two holes in the figure) are formed at intervals in the length direction of the strip member 11.

The planar shape of the hole 20 may be rectangular, circular, or any other shape.

A pawl 22 that removably fits into the hole 20 is provided. The claw 22 is formed by cutting and raising a portion of the longitudinally intermediate portion of the strip member 11 outward and bulging outward. That is, as shown in FIGS. 4 and 5, the claw 22 has a distal end protruding obliquely in a direction opposite to the direction in which the band is tightened, and has inclined surfaces 22a on both sides of the claw 22 in the width direction. . Furthermore, the claws 22 are squeezed into a bulging shape with a cross section in the width direction convex outward.

Furthermore, an ear portion 25 is attached to the middle portion of the belt-like member 11 in the direction of approx.
is formed. This ear portion 25 is connected to a pair of leg portions 26 .
27, and a connecting portion 28 that connects these leg portions 26 and 27. Both side edges of the communication portion 28 are reinforced by 729 or squeezed upward in the drawing.

After the bows band 10 having the above structure is attached to a hose with the claw 22 removed from the hole 20 and both ends 11a and 11b open, the claw 22 is fitted into the hole 20. Since the claw 22 projects diagonally, once it is fitted into the hole 20, it is difficult to come off and the fitted state can be maintained.

Then, using a jig, as shown in FIG.
．． 27 is plastically deformed. As a result, the belt-like member 11 is pulled in a direction in which its diameter is reduced, so that the hose A can be fixed in a strongly tightened state. In this way, the nail 22
When the band 10 is tightened while the is fitted into the hole 20,
When the inclined surface 22a of the claw 22 abuts against the inner surface of the hole 20, the two overlapping plates are brought into close contact with each other. Moreover, since the claw 22 is a squeezed bulge, it can sufficiently withstand the high tensile force during tightening.

In the hose band 10 having the above configuration, a protrusion 12 is formed on the inner end 11a of the band member 11, and the mating part 11C with which this end 11a overlaps has two rows of divided parts 1.
6.17, so the tightening is done at end 1 in the condition.
It is possible to shift the position of the gap 31.32 generated on the tip side of the hose A in the circumferential direction of the hose A for each divided portion 16.17.In other words, as shown in FIG.
If the stepped protrusion 12 is provided in the hose, even if a gap 31 is created in one of the divided parts 16, the hose cannot be tightened in this state, as shown in FIG. is in a state where it is tightened at a location of length λ1 of the other divided portion 17. Similarly, with respect to the gap 32 created in the other divided part 17, this part is tightened at a point of length λ2 of one divided part 16. Therefore, the hose A can be tightened without any gaps in the circumferential direction, and good sealing performance can be obtained. Moreover, the band member 11 has two divided parts 16 and 17.
Since each division 16, 17 tightens the hose individually, the tightening becomes more effective.

Note that the shape of the end portion 11a is not limited to the above embodiment. For example, as shown in Figure 9, two
Alternatively, as shown in FIG.
It may be.

Further, the number of slits 14 is not limited to one, and three or more divided portions may be formed, for example, by forming two or more slits parallel to each other.

In this case, a tapered end face shape as shown in FIG. 11 can be adopted.

〔Effect of the invention〕

According to the hose band of the present invention, the hose band can be tightened without any gaps in the circumferential direction of the hose, and good sealing performance can be exhibited.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention, in which FIG. 1 is a front view of the hose band, FIG. 2 is a left side view of the hose band, and FIG. 3 is a right side view of the hose band. 4 is a plan view of the claw portion, FIG. 5 is a side view of the claw portion, and FIG. 6 is a front view of the tightened state. FIG. 7 is a plan view showing an example of the end shape of the strip member;
This figure is a perspective view of the belt-like member having the end shape shown in FIG. 7 when it is being tightened, and FIGS. 9 to 11 are plan views showing modified examples of the end shape. Fig. 12 is a front view showing an example of a conventional hose band, Fig. 13 is a front view of the tightening shown in Fig. 12 with the ears deformed, and Fig. 14 is a front view showing another conventional example. It is. 10... Hose band, 11... Band-shaped member, 11a
...One end, 11b...The other @ part, 11c.
... Opposite surface, 12... Protrusion, 14... Slit, 16° 17... Divided part.

Claims (1)

[Claims] A hose band consisting of a metal band-like member with both ends open, the band-like member shaped into a ring, and fixed to each other with both ends overlapped inside and outside,
One end located on the inside of the above-mentioned both ends is provided with a protrusion that protrudes toward the distal end side of the band member on a part of the end face in the width direction, and a band-like member is provided on the other side where this end overlaps. A hose band characterized in that a part of a band-like member is divided into two or more rows in the width direction by forming continuous slits in the longitudinal direction of the member.