JP2571360Y2 - Hose clip - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose clip, and more particularly to a so-called holder type hose clip in which a clip body is held in an expanded state by a holder.

[0002]

2. Description of the Related Art Usually, in order to facilitate insertion of a hose clip into a hose, the clip body is carried to a work site while the diameter of the clip body is maintained in an enlarged state. As a conventional method of maintaining the expanded state, the both ends of the clip body are bent outward at substantially right angles to face each other, and these are formed as a pair of knob pieces for performing the diameter expanding operation. A so-called holder type in which a holder is attached across both knob pieces at the time of diameter is well known.

[0003] However, such knobs are provided solely for expanding the diameter of the clip body, and are often used after the hose is clamped, except when the hose is repaired or replaced. Instead, after the hose is clamped, the knob itself becomes a useless projection that is not normally used. Due to the presence of the projection, the surrounding space is always restricted.

[0004] Such a hose clip is also used for stopping the mouth of a dust-proof boot of a steering rack of an automobile.
Freezing may occur between the arm of the steering system disposed in the vicinity, and this may cause a problem such as breakage of the boot.

[0005] In order to solve such problems, a hose clip C 'without a knob as shown in FIG. 9 has been developed. This hose clip C 'has a projecting piece 20 protruding along the circumferential direction at the center of one end, and a concave groove 21 for receiving the same is formed at the other end.
In the natural state, they are fitted on the same peripheral surface.

[0006]

However, in the above-mentioned type, the expanded diameter cannot be maintained, and the expanding operation must be performed at a hose connection work site. Moreover, in order to perform the diameter increasing operation, a release tool T as shown in FIG. 9 is required. This tool T is a hose clip C
This is a dedicated product for each hose clip having a release leg piece 22 of a complicated shape that is applied to both shoulders of the protruding piece 20 or the opening edge of the concave groove 21, and cannot be diverted as it is to another kind of hose clip. is there. In addition, even if the diameter-expanding operation is actually performed, the operation of applying the release leg pieces 22 to the respective regular positions of the hose clips C 'is not easy, which makes the work difficult and delays.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a hose clip which can eliminate unnecessary projections from a clip body as much as possible and can easily release a diameter-expanded state.

[0008]

In order to achieve the above object, the structure of the present invention is such that a band-shaped leaf spring material is provided with a slot hole in the center portion thereof in the length direction at the center thereof. A bifurcated first locking portion, which is connected to each other, is formed so as to slightly project in the radial direction, and a second locking portion narrower than the slot hole is formed on the other end side in the radial direction. While the first locking portion is inserted into the slot hole, and the first and second locking portions are formed in a substantially annular shape so as to intersect with substantially the same peripheral surface. And a holder for holding the clip body in an expanded state. The holder engages with an operation portion for the clip body and straddles the both locking portions provided at a lower portion thereof. Engagement with both locking parts by twisting the entire holder An outer edge of the first locking portion, which is formed of a pair of releasable locking legs and has a width substantially equal to a width of the second locking portion, and has a forked shape; It is characterized in that it is formed smaller than the width dimension between them.

[0009]

The clip body is kept in the expanded state, and the first and second locking portions are engaged with both locking legs of the holder to hold the clip body in the expanded state. Then, a hose clip is inserted into the mouth of the hose. In this state, if the operating part is operated to forcibly release the engagement of the two locking leg pieces,
The holder is separated from the hose clip body. As a result, the clip body returns to the reduced diameter state by its own spring force, and the hose is tightened.

[0010]

[Effects of the Invention] The effects of the present invention are as follows. The width of the locking leg piece is approximately the same as the width of the second locking portion, which is a single leg, and is smaller than the width between the outer edges of the first locking portion, which is the two legs. . Therefore, when a twisting operation is performed on the operating portion of the holder in order to release the expanded diameter state, the twisting angle is small enough to release a slight hook to the second locking portion, which is a single leg. Is easy.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; The hose clip C of the present embodiment includes a clip body 1 and a holder 2.

The clip body 1 is formed by bending a band-like leaf spring material into an annular shape, and has a triangular window 3 at two locations on the peripheral surface. The triangular window 3 is a device for uniformly clamping the hose H, but the description thereof is omitted because it is a well-known technique.

A slot hole 4 is opened at one end of the clip body 1 over a predetermined length range. And
The leading end of the portion where the slot hole 4 is formed rises obliquely outward and then extends along the circumferential direction again to form the first locking portion 5. A narrow portion 6 is formed on the other end side of the clip body 1, and a distal end portion thereof is bent similarly to the first locking portion 5 to form a second locking portion 7. The second locking portion 7 is passed through the slot hole 4, and even if the clip body 1 is deformed from a natural state (the state shown in FIG. 1) to an expanded state (the state shown in FIG. 2), the two locking portions 5 are formed. The cross state is maintained.

However, the height at which the locking portions 5 and 7 protrude from the clip body 1 is determined by the locking leg 8 of the holder 2 described below.
The minimum necessary for fitting a and b is minimized, and care is taken to prevent useless projections from clip body 1 as much as possible. Next, the holder 2 will be described. The holder 2 is integrally formed of a synthetic resin material, and the whole is formed thinner than the width of the clip body 1. The upper portion of the holder 2 serves as an operation unit 9 for performing a detaching operation (twist operation by an operator) from the clip body 1. In this embodiment, the center of the operation section 9 is recessed except for the peripheral edge in consideration of slip prevention at the time of operation. A pair of locking leg pieces 8a and 8b are provided on the lower surface of the operation unit 9 as means for holding the clip body 1 in an expanded state. This two locking leg pieces 8
A hook claw 10a, b is formed at the lower end of each of the hook legs 10a, b so as to be opposed to each other.
Is held. When the holder 2 is attached to the clip body 1, for example, the side opening of the insertion groove 11 of the holder 2 from the side of both the locking portions 5 and 7 with respect to the clip body 1 held in an expanded state. If it is pushed into the groove after the fitting, the two locking leg pieces 8a and 8b
7 is releasably engaged on the lower surface side.

A reinforcing piece 13 for connecting the two locking leg pieces 8a and 8b is integrally provided on the upper surface in the insertion groove 11, and restricts the expansion deformation of the two locking leg pieces 8ab. I have.

The hose clip C of the present embodiment configured as described above is carried into the connection work site of the hose H while the diameter of the clip main body 1 is maintained by the holder 2. In order to make such a form, first, the clip body 1
(For example, performed by a dedicated device), and the both locking leg pieces 8a and 8b of the holder 2 are engaged with the corresponding first and second locking portions 5 and 7 in the manner described above. In this state, as shown in FIG. 3, the locking portions 5, 7 are pressed against the corresponding hook claws 10 a, 10 b by the spring force of the clip body 1.

At the connection work site, the above-mentioned hose clip C in the expanded state is inserted into the mouth of the hose H, and is fitted into the pipe P to be connected as it is. When the operating portion 9 of the holder 2 is pinched and twisted around the axis X shown in FIG. 2, the first and second locking portions 5, 7 are formed by the corresponding inner wall surfaces of the hook claws 10a, 10b. Under the force in the compression direction, they approach each other (see FIG. 4). As a result, the engagement of the holder 2 is temporarily released when the distance between the tips of the locking portions 5 and 7 becomes smaller than the groove width of the lower surface of the insertion groove 11. Thus, the holder 2 is separated from the clip body 1. Thereby, the clip body 1 returns to the reduced diameter state by its own spring force and tightens the hose H.

As described above, in this embodiment, the clip body 1
Can be transported to the connection work site of the hose H in an expanded state, so that the hose H can be directly inserted into the site at the site. Moreover, since the release of the expanded state can be performed by the twisting operation of the holder 2 by the operator's hand, the operability is improved and the working efficiency is improved, which is suitable for line work. Further, since the holder 2 is separated from the clip body 1, the first and second locking portions 5, 7 only slightly protrude when the hose H is tightened, and the surrounding space is not damaged. in this way,
Since the protrusions are not generated more than necessary, the above-described problem due to icing can be effectively eliminated.

If the hose H needs to be repaired or replaced, the first and second locking portions 5, 7 are slightly small, but project to an extent necessary to be gripped by a tool (pliers, etc.). Therefore, the operation of expanding the diameter is not made difficult.

Although not shown, the corner portions of the first and second locking portions 5, 7 may be formed in an arc shape in order to smoothly perform the twisting operation of the holder 2. FIG. 5 shows a second embodiment of the present invention.
Hereinafter, all of the examples up to the fifth embodiment up to FIG. 8 show modifications of the holder 2 of the hose clip C. In addition, any of the embodiments can be applied to the clip body 1 having the same configuration as the first embodiment.

The holder 2 according to the second embodiment is obtained by bending a metal plate into a symmetrical shape, that is, it is folded back into a U-shape to form an operating portion 9 and both end portions are extended right and left. Thus, the locking leg pieces 8a and 8b can be engaged with the corresponding locking portions.

With the holder 2 configured as described above, the clip body 1 can be held in an expanded state and released by a twisting operation.

FIG. 6 shows a holder 2 according to a third embodiment. In the holder 2 according to the second embodiment, the center of the left and right overhangs is cut downward to raise the locking leg pieces 8a, b is formed. The other configuration is the same as that of the second embodiment, and exhibits the same operation and effect.

FIG. 7 shows a holder 2 according to a fourth embodiment. In this embodiment, one end of a metal plate is bent at a right angle to form one locking leg 8a. The base of the operating portion 9 is cut and raised so as to face the locking leg 8a, and the other locking leg 8b is formed narrow. In the fourth embodiment configured as described above, the same operation and effect as those of the other embodiments can be exhibited.

[0025]

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a hose clip.

FIG. 2 is a perspective view of a hose clip in an expanded state.

FIG. 3 is a sectional view showing an engagement state of a holder.

FIG. 4 is a sectional view showing a release state of the holder.

FIG. 5 is a perspective view of a holder according to a second embodiment.

FIG. 6 is a perspective view of a holder according to a third embodiment.

FIG. 7 is a perspective view of a holder according to a fourth embodiment.

FIG. 8 is a perspective view showing a conventional hose clip and a special tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Clip main body 2 ... Holder 5, 7 ... Locking part 8a, b ... Locking leg piece 9 ... Operating part C ... Hose clip H ... Hose

Claims (1)

(57) [Scope of request for utility model registration] 1. A bifurcated first engaging portion having a leading end connected to one end side of a band-shaped leaf spring material by opening a slot hole in a central portion thereof in a longitudinal direction, the first engaging portion having a radial direction. On the other end side, a second locking portion narrower than the slot hole is formed while slightly protruding in the radial direction, and the first locking portion is formed to the slot hole. And a clip body formed by bending the entire body in an annular shape so that the first and second locking portions intersect with each other while forming substantially the same peripheral surface. The holder comprises: an operating portion for the clip body; and a lower portion of the operating portion, which straddles and engages with the locking portions, and can be disengaged from the locking portions by twisting the entire holder. And a pair of locking leg pieces Width is approximately the same as the width dimension of the second locking portion of the hose clip, characterized in that it is formed smaller than the width dimension between the outer edge of the first engagement portion which forms a bifurcated.