JP2560663Y2 - Hose clip - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a hose clip. Further, the present invention relates to a so-called holderless type hose clip which can be held in an expanded state without using a holder.

[0002]

2. Description of the Related Art Various hoses such as hoses for supplying and discharging brake oil are arranged in an engine room of an automobile. Conventionally, metal hose clips have been used to connect these hoses, and a simple tightening operation utilizing the spring property has been performed. Here, in the natural state, the diameter of the hoeslip is reduced by its own spring action. Therefore, if the hoeslip is transported to the site as it is, the diameter must be increased on the spot, and the workability is poor. In view of this, it is required to set the diameter of the hose to be large enough to be fitted directly into the hose. Conventionally, there are two methods to hold the expanded diameter, one of which is called a holder type using a separate holder,
The other is a so-called holderless system in which the clip itself has a holding function. As a prior art of the holderless type, for example, Japanese Unexamined Utility Model Publication No. 64-29591 can be mentioned. In this device, one end of the hose clip is erected slightly lower to the outside, and the other end is provided with an opening enough to pass through the erected part, and is erected high, and is hooked on the upper edge of the opening. The piece is hung down and locked in the upright portion on the shorter side to maintain the diameter in an enlarged state.

[0003]

However, the above-mentioned publication requires a special tool regardless of whether the diameter is increased or the diameter is released. That is,
In order to expand the diameter of the hose clip, it is necessary to grasp the corresponding upright portions of the hose clip and perform the operation of expanding the diameter, and at the same time, lock the hook piece to the upright portion. For this purpose, it is necessary to perform an operation of moving the hook piece over the upright portion while performing the diameter-increasing operation, that is, an operation of causing relative displacement of both ends of the hose clip in the radial direction. It is extremely difficult to perform such an operation in a different direction with a normal commercially available tool (for example, a plier), and it is necessary to use a special tool. In order to release the enlarged diameter state, the upright portion on the side provided with the hook pieces is pulled upward to forcibly release the engagement of the hook pieces. In order to obtain a gripping force, the tool must be held with a considerable force, which is not suitable for repetitive work. Therefore,
A dedicated tool with a long handle that can obtain a large gripping force is required.

[0004] Various types of hose clips are selected according to the type of hose, for example, the magnitude of the fluid pressure flowing inside, and considering that a plurality of types are used in actual automobiles, Dealing with a dedicated tool for each hose clip complicates on-site work. Further, a tool having a large handle is not easy to use in an engine room where the insertion space is small.

In addition to the above problems, the following problems are pointed out. When canceling the expanded state, as described above, the upstanding portion on the side where the hook piece is formed is pulled up, but the forced deformation at this time may exceed the elastic limit. As a result, the roundness of the hose clip is impaired, and the sealing performance may be impaired due to a partial decrease in the tightening force of the hose.

[0006] The present invention has been devised in view of the above points, and has as its object to provide a hose clip that can use a general-purpose tool and maintains a sealing property.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the structure of the present invention is to tighten a mouth portion of a hose.
A hose clip in which a band-shaped leaf spring material is formed by being bent in an annular shape, and first and second knob pieces for diameter increasing operation are formed on both ends thereof in the radial direction. An opening is formed at the tip of the second knob piece, and a locking piece is formed by bending the first knob piece toward the opening, and the first and second knob pieces are brought closer to each other. When the hose clip is pinched in the direction to expand the diameter of the hose clip, the locking piece is detachably locked to the opening edge of the opening while the tip end portion passes through the opening, and the diameter of the hose clip is increased. A release portion for releasing the expanded state of the hose clip is formed at a tip portion where the locking piece passes through the opening, and the release portion and the second knob piece are provided. The locking piece is bent in the lifting direction by the knob operation with the tip. Is characterized in that by shape engagement between the opening edge portion of the opening portion has a releasable configuration.

[0008]

When the diameter of the hose clip is increased, the leading ends of the first and second knob pieces are pinched and approached, so that the locking piece penetrates the opening of the second knob piece. Engage with the opening edge of the opening. As a result, the hose clip is held in the expanded state. To release the expanded state, the release section and the tip of the second knob piece are pinched. Then, the locking piece is lifted, and the engagement between the locking piece and the opening edge of the opening is released, so that the hose clip returns to a reduced diameter state by its own spring force and tightens the hose. it can.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an entire hose clip C in an expanded state. It is bent into an annular shape, and a triangular window 1 is opened at a plurality of locations on the peripheral surface. The triangular window 1 is a device for uniformly clamping the entire circumference of the hose H, but the description thereof is omitted because it is a well-known technique.

[0010] One end of the hose clip C is narrow over a predetermined length range, and the tip is bent outward at a substantially right angle as a first knob piece 2. At the tip of the first knob piece 2, the inside is cut in a U-shape, and then the cut portion is bent substantially at a right angle to form a locking piece 3, and the portion left by the folding is formed. As shown in FIG. 2, the knob T protrudes as the knob operation unit 4 when performing the diameter expanding operation with the tool T. In the expanded state shown in FIG. 1, the locking piece 3 is set to have a length such that a part of the tip protrudes from an opening of a knob piece 5 on the other side, which will be described later. A release portion 6 for release operation is formed to be slightly upwardly curved so that the knob operation of T can be easily performed. Further, a locking claw 8 is formed to protrude obliquely downward from the opening 7 of the locking piece 3 at the edge of the release portion 6 side. The locking claw 8 plays a role of further strengthening the engagement relationship when engaging with the locking protrusion 9 on the second knob piece 5 side described later.
Therefore, the locking claw 8 can be omitted.

The other end of the hose clip C has a receiving groove 10 opened over a predetermined range so as to receive the above-described narrow portion and form the same peripheral surface as the whole hose clip C. . The distal end of the portion where the receiving groove 10 is formed is substantially perpendicular to the outside so as to be almost the same height as the first knob piece 2 (the height up to the knob operation section 4). Folded second knob piece 5
It has become. The connecting piece 11 is laid horizontally at a position approximately half the height of the second knob piece 5, whereby the connecting piece 1
An opening 7 is formed on the upper side of 1 to allow the leading end side (release portion 6 side) of the locking piece 3 to pass therethrough. The above-mentioned locking projection 9 is formed upward at the center of the connecting piece 11.

[0012] The hose clip C of the present embodiment configured as described above is carried to the connection site of the hose H in an expanded state.
In order to obtain such a configuration, as shown in FIG. 2, a commercially available tool T such as a pliers is used to sandwich the upper end of the knob operating portion 4 of the first knob 2 and the upper end of the second knob 5 and hold it firmly. And bring both knob pieces 2 and 5 closer together. Thereby, the locking piece 3
Release portion 6 gradually enters the opening portion 7 while flexing upward, climbs over the locking projection 9, and the locking projection 9 and the locking claw 8 are engaged (the states of FIGS. 1, 3, and 4). As a result, the hose clip C is held in the expanded state.

At the connection work site, the above-mentioned hose clip C in an expanded state is inserted into the mouth of the hose H, and is fitted into a pipe (not shown) to be connected as it is. Then, as shown in FIG. 3, when the release portion 6 and the upper end portion of the second knob piece 5 are pinched and firmly gripped by the commercially available tool T, the locking piece 3 is forcibly bent upward and deformed, and The engagement between the projection 9 and the locking claw 8 is released. This allows
The hose clip C is reduced in diameter by its own spring force, and the hose H is automatically tightened.

As described above, in the hose clip C of this embodiment, the commercially available tool T can be used in either the case where the temporary fixing is performed or the case where the temporary fixing is performed. Therefore, versatility that can cope with different types of hose clips C is obtained, and smooth work can be performed even in a narrow work space such as in an engine room. Further, when the temporary fixing is released, only the locking piece 3 may be deformed flexibly, which does not lead to the deformation of the entire hose clip. Therefore, the sealing property with respect to the hose H is maintained, and the hose can be reused. Also excellent in nature. Further, in this embodiment, since the engagement state with the engagement protrusion 9 is strengthened by providing the engagement claw 8, the situation where the temporary fastening is released during the transportation of the hose clip C is avoided beforehand. There is also an effect that can be done.

FIG. 5 shows a second embodiment of the present invention. This embodiment shows a modification of the temporary fixing means. That is, a pair of locking recesses 12 are formed in the locking piece 3 on both side edges on the distal end side, while the second knob piece 5 is formed.
A pair of locking projections 13 project in parallel from the connection piece 11 on the side corresponding to the both locking recesses 12.

Also in the second embodiment, the engagement or disengagement of the hose clip C can be performed by the engagement and disengagement of the locking concave portion 12 and the locking convex portion 13, and thus the same as in the first embodiment. The function and effect can be exhibited.

FIG. 6 shows a third embodiment of the present invention, in which a connecting piece 1 is used instead of the locking projection 13 in the second embodiment.
A hooking concave portion 14 is formed on the upper edge of the locking member 3 so as to be detachable from the locking piece 3 and is temporarily fixed. In the third embodiment configured as described above, the same operation and effect as those of the first and second embodiments can be exhibited.

[0018]

[Effects of the Invention] The effects of the present invention are as follows. Since the hose clip can be operated by a gripping operation in both cases of expanding the diameter and releasing the hose clip, operation with a commercially available tool is possible. Therefore, there is no need to set a dedicated tool for each type of hose clip. Further, when the temporary fixing is released, only the locking piece is flexed and deformed, which does not accompany the deformation of the entire hose clip, so that the sealing property is maintained and the hose clip can be reused, which is economical. Can be used for

[Brief description of the drawings]

FIG. 1 is a perspective view of a hose clip in an expanded state.

FIG. 2 is a front view showing a diameter expanding operation of a hose clip.

FIG. 3 is a front view showing a diameter reduction operation of the hose clip.

FIG. 4 is an enlarged sectional view showing a temporary fixing portion.

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

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

[Explanation of symbols]

 2 1st knob piece 3 ... lock piece 5 ... 2nd knob piece 6 ... release part 7 ... opening 8 ... locking claw 9 ... locking protrusion C ... hose clip H ... hose T ... tool

Claims (1)

(57) [Scope of request for utility model registration] 1. A band-shaped leaf spring material is formed to be bent in an annular shape in order to tighten a mouth portion of a hose, and both ends thereof are erected in a radial direction so as to be used for a first diameter-enlarging operation. In the hose clip formed with the second knob piece, an opening is formed at the tip of the second knob piece, and the locking piece is formed by bending the first knob piece toward the opening. When the hose clip is expanded in a direction in which the first and second knob pieces are brought closer to each other, and the hose clip is in an expanded state, the locking piece is opened while the distal end portion of the hose clip passes through the opening. The hose clip can be detachably locked to the edge to hold the expanded state of the hose clip, and the distal end where the locking piece passes through the opening is a release for releasing the expanded state of the hose clip. A knob is formed between the release portion and the tip of the second knob piece. Hose clip, characterized in that created by the engagement between the opening edge portion of the opening portion by deforming the flexure in a direction lifting the locking piece has a releasable configuration.