JPS62224709A - 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 used for fixing a tenth or hose-like member.

[Conventional technology]

A conventionally used metal hose band with both ends open is made by rolling a metal band member 2 constituting a hose band 1 into a ring shape, as shown in Fig. M19, for example. The protrusion 4 is fitted into the locking hole 3 in a state where the two are overlapped on the inside and outside of each other. The tightening provided on a part of the band member 2 is performed by plastically deforming the ear portion 5 using a jig, thereby reducing the ring diameter and tightening the hose 7.

[Problem that the invention attempts to solve]

In the above conventional product, a step 8 corresponding to the plate thickness is created at the tip of the inner overlapping part of the band member 2, so sufficient tightening force cannot be obtained in this part, and leakage is likely to occur from part A etc. .

Therefore, as illustrated in FIG. 20, a step 9 corresponding to the plate thickness is provided at the outer overlapping portion of the strip member 2, and the end portion 2a of the inner overlapping portion is inserted into the inner surface of this step 9. There is also. However, also in the case of this hose band 1, when tightening the band-like member 2, that is, when reducing the diameter of the hose, a part of the hose 7 is pushed by the inner end 2a of the band-like member 2, and as a result, the hose 7 had wrinkles 7a, and the sealing performance was sometimes impaired at this location.

[Means for solving problems]

The present invention consists of a metal band member with both ends open,
This belt-shaped member is rolled into a ring shape and both ends are overlapped inside and outside of each other, and is applied to a hose band. 1. A locking hole is formed in the outer overlapping part of the belt-shaped member, a protrusion that engages with the locking hole is provided in the inner overlapping part, and a part of the belt-shaped member in the longitudinal direction is provided with a locking hole. Ears are provided.

The shape of the tip of the inner overlapping portion is a tapered shape in which the plate thickness on the tip side decreases, and the hose band has one or more punched holes or notches along the longitudinal direction in the tip. It is.

[Function] (To fix a member to be tightened, such as a hose, using a 1M-thick band, wrap the band-like member around the surface of the object to be tightened,
Both end portions of the band-like member are overlapped on the inside and outside of each other, and the protrusion provided in the inner overlapping portion is fitted into the locking hole provided in the outer overlapping portion. Then, when tightening with a jig, the ear part is deformed, thereby reducing the diameter of the ring and tightening the ring to the surface.

At the tip of the inner overlapping portion of the band member, the plate thickness gradually decreases toward the tip, and a punched hole or notch hole is provided in the longitudinal direction, so that the tightened object easily conforms to the curvature of the surface. In addition, since it has a pointed shape that is thinner on the tip side, there is no extreme step difference in the overlapping portions of the ends.

〔Example〕

In one embodiment shown in FIGS. 1 to 6, the hose band 10 consists of a single strip member 11 made of metal such as stainless steel. This band-shaped member 11
Both ends are open free ends. The band member 11 is rolled into a ring shape and is connected by fitting the protrusion 14 into the locking hole 13 with both ends overlapped inside and outside. The locking hole 13 is connected to the belt-shaped member 11
The protrusions 14 are provided on the outer overlapping portions, and the protrusions 14 are provided on the inner overlapping portions. These locking holes 13 and protrusions 1
One or more number 4 are provided.

The protrusion 14 is formed by cutting and raising a part of the band member 11 outward and protruding outward. That is, as illustrated in FIGS. 5 and 6, the tip side of the protrusion 14 projects obliquely, and the protrusion 14 is provided with inclined surfaces 14a on both sides in the width direction, and has an arched cross section. It is squeezed out into a convex shape on the outside. Protrusion 1 with this shape
4, the tightening can sufficiently withstand high tensile forces.

In addition, a portion of the strip member 11 in the longitudinal direction is tightened by an ear portion 15.
is provided. For this tightening, the ear portion 15 has a pair of leg portions 15a that stand up toward the outside.

15b, and the main part extending between these leg parts 15a and 15b,'
:K 15 C.

As shown in FIG. 2, the shape of the distal end portion 11a of the inner overlapping portion of the band-like member 11 is a tapered shape (approximately isosceles triangle) in which the end plate width decreases on the distal end side in the width direction. Further, in the thickness direction, as shown in FIG. 3, the plate is formed in a tapered shape in which the plate thickness on the tip side gradually decreases. Moreover, a punched hole 17 along the longitudinal direction is formed in this tip portion 11a.

This punched hole 17 is punched out by press working, and is formed into a tapered shape (approximately isosceles triangle) with a narrower groove width on the tip side, similar to the shape of the tip portion 11a.

In this way, the distal end portion 11a of the strip member 11 is formed in a shape in which the width and thickness of the strip gradually decrease toward the distal end side,
In addition, since the punched hole 17 is formed along the longitudinal direction, the tightened object can easily bend in an arc shape along the curvature of the surface, and the tightened object has good conformity to the surface. In addition, the tip 1
In addition to the plate width of 1a gradually decreasing, since a long hole-shaped punched hole 17 is provided, during the manufacturing process of the strip member 11, the tip P+; 11a is crushed in the thickness direction and formed into a tapered shape. The area required for processing is small. Therefore, rolling processing etc. for forming the tip portion 11a is easy,
This tip portion 11a is formed by, for example, press forming other than rolling.
It is also possible to finish it in a tapered shape.

In the hose band 10 having the above-described structure, a hose or the like to be tightened is wound around a surface with both ends of the band member 11 open, and then the protrusion 14 is fitted into the locking hole 13. Next, tightening using a jig causes the ear portion 15 to be plastically deformed. As a result, the belt-like member 11 is pulled in a direction in which its diameter is reduced, so that the object to be fastened can be fixed in a state where the surface is strongly fastened.

When the above-mentioned tightening is performed, that is, when the ear portion 15 is deformed, the inner overlapping portion and the outer molded portion of the band member 11 move relative to each other. However, since the inner tip 11a is tapered in its width direction and thickness direction,
The tip portion 11a can easily slide into the surface of the tightened object, and the tightened object does not cause wrinkles on the surface. Also, the above 7. A punched hole 17 along the longitudinal direction at the end Ill
Since the distal end portion 11a has a bifurcated shape, this portion is to be tightened at two separate locations, further improving sealing performance.

Since the thickness of the inner end portion 11a has a tapered shape, there is no difference in level (see FIG. 5) in the inner overlapping portion as in conventional products. Therefore, excellent sealing performance can be obtained over the entire circumference.

Note that FIGS. 7 to 9 show other embodiments of the tightening ear portion 15. In this case, the main portion 15C is pressed from both sides in the width direction of the plate, so that the cross section in the width direction (FIG. 8)
is plastically deformed in advance so that it becomes approximately U-shaped. By deforming the main portion 15c into such a shape,
Rib-shaped portions 20.21 are formed on both sides of the main portion 15c, and the rib-shaped portions 20.21 buckle to form dowel-shaped portions 22. Since the main portion 15c is thus reinforced, it can sufficiently withstand the force of strong tightening. Figure 9 shows that tightening is sometimes done with a jig, 1° 15a,
15b is shown in a deformed state.

Note that the punched hole 17 may have a single elongated shape as shown in FIGS. 10 to 13, or the punched hole 17 may be formed in a longitudinal direction as shown in FIGS. 14 and 15. Several pieces may be provided. Further, as shown in FIGS. 16 to 18, a cutout hole 27 may be provided in place of the punched hole 17. In each of these examples, the tip portion 11a has a tapered shape in which the plate thickness on the tip side decreases.

Furthermore, the hose band of the present invention can of course be used, for example, when fixing a bellows-shaped part such as a boot for a constant velocity joint.

〔Effect of the invention〕

According to the hose band of the present invention, the distal end of the band-like member easily conforms to the surface to be tightened, and good sealing performance is obtained over the entire circumference, and the distal end has one or more punched holes or notched holes. By providing this, it becomes easy to taper the thickness of the tip end, and it is also possible to reduce the weight. In addition, since the tip is divided into multiple parts in the width direction and the surface to be tightened contacts the surface, this is extremely effective in improving sealing performance.

[Brief explanation of drawings]

1 to 6 show one embodiment of the present invention, FIG. 1 is a front view of the hose band, FIG. 2 is a plan view showing the tip of the band member, and FIG. 4 is a sectional view taken along line 2-m, FIG. 4 is a sectional view of the hose attached to the hose, FIG. 5 is a plan view of the protruding portion, and FIG. 6 is a front view of the protruding portion. Fig. 7 is a front view of the lug portion showing another embodiment of the present invention, Fig. 8 is a sectional view taken along the line ■-■ in Fig. 7, and Fig. 9 is a tightening shown in Fig. 7. is a front view with the ears deformed, No. 10
18 are plan views of the distal end portions showing other embodiments of the present invention, respectively. FIG. 19 is a sectional view showing a conventional hose band, and FIG. 20 is a sectional view showing still another conventional example. DESCRIPTION OF SYMBOLS 10... Hose band, 11... Band-shaped member, lla
... Tip part, 13 ... Locking hole, 14 ... Protrusion, 1
5... Tighten at the ear part, 17... Punched hole, 27...
Notch hole. Applicant Attorney Patent Attorney Takehiko Suzue Figure 2 Figure 4 Figure 7 Figure 8 Figure 9 Figure 11a・l Figure 14 Figure 11a Figure 15 Figure 16 'i'+ 18 J Figure 19 Figure 20 figure

Claims (1)

[Scope of Claims] A hose band consisting of a metal band-like member with both ends open, the band-like member being rolled into a ring shape and used with both ends stacked on top of each other inside and outside, the hose band comprising: A locking hole provided in the outer overlapping part of the band-shaped member, a protrusion provided in the inner overlapping part of the band-shaped member and engaging with the locking hole, and a tightening hole provided in a part of the longitudinal direction of the band-shaped member. and the shape of the tip of the inner overlapping portion is tapered such that the plate thickness on the tip side decreases, and the tip has one or more punched holes or holes along the longitudinal direction. A hose band characterized by having a cutout hole formed therein.