JP2528532Y2 - Clamping device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp device in which a clip which resiliently engages a hole of a member to be mounted protrudes from a substrate on the side of the mounting member.

[0002]

2. Description of the Related Art This type of clamp device is widely used for a wire harness protector or the like. FIG. 4 shows an example of a protector provided with the clamp device. Protector body 20 for protecting bent portion of wire harness W
As shown in FIG. 4 (a), a gutter-like body is formed in an L-shape with its bottom wall inward, and is formed on an inner plate (substrate) 21 corresponding to the bottom wall of the gutter. In the figure, a clip 22 that resiliently engages with a hole 30 of a panel P, which is a member to be attached, is integrally protruded.

As shown in FIG. 1B, a clip 22 has a head 23 which engages with a hole 30 of a panel P, and an inner plate 21.
And a shaft portion 24 protruding from the shaft portion and supporting the head portion 23. An elastic blade 26 having a locking step 25 is provided on the head 23.
When the head 23 is inserted into the hole 30 of the panel P, the clip 22 is fixed by engaging the locking step 25 with the periphery of the hole 30.

When using this protector, first, the wire harness W is housed in the protector main body 20, and a tape T is wound around the end and fixed. Then, clip 22
Is inserted into the hole 30 of the panel P, and the locking step 25 is resiliently engaged with the periphery of the hole 30 by the elastic force of the elastic blade 26.
This completes the installation.

The conventional clamping device has a structure in which the clip 22 is provided directly on the inner plate 21 and is not allowed to bend.
When the force shown in FIG. 7 is exerted, the clip 22 resiliently engaged with the hole 30 of the panel P is likely to come off, and if it does not come off, an excessive force is applied to the shaft portion 24 of the clip 22 to break it. There was a problem that it was easy to do.

On the other hand, as examples of a clamp device having a clip similarly, those described in Japanese Utility Model Laid-Open No. 1-69322 and Japanese Utility Model Laid-Open No. 64-20021 are known. In the former, a clip is attached to a substrate via a movable plate, and the clip is movable in a direction along the surface of the substrate. However, since this does not have a structure that allows bending, it is weak against a force in the pull-out direction. In the latter, a clip is provided on a substrate via a flexible support. Although this allows bending, it is not made to bend in the pull-out direction, and is similarly weak against the force in the pull-out direction. Moreover, the structure is very complicated.

[0007] Separately, Japanese Utility Model Application Laid-Open No. 2-6041
No. 9 describes a technique for holding a branch line with an elastic holding piece that can be flexibly deformed. However, since this does not have a clip, there is no problem of detachment or breakage of the clip.

[0008]

As described above, the conventional clamping device has a structure that does not allow the clip to bend in the direction in which the clip is pulled out. There was a problem. Also,
The technology described in the conventional publication could not be expected to contribute sufficiently to solving such a problem.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a clamp device which can reliably absorb a force in a detaching direction to solve the problem of detachment or breakage of a clip, and can realize the problem with a simple structure. And

[0010]

According to the present invention, in order to achieve the above object, a clip which resiliently engages with a hole of a member to be mounted is protruded from a flat substrate on the side of the mounting member. In the clamp device, a U-shaped slit is formed in the substrate to form a tongue that can be bent and deformed at the same level as the substrate while being surrounded by the slit, and the clip is projected on the tongue. It is characterized by.

[0011]

In the clamp device according to the present invention, when a force is applied between the substrate and the clip in the direction of relative removal, the tongue is bent to absorb the force. Therefore, the force in the pulling-out direction does not act much on the clip, so that the clip is prevented from coming off, and furthermore, no excessive force is applied and the risk of breakage is reduced.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a protector 1 to which the present invention is applied. The protector 1 has a protector body 2 for protecting the L-shaped bent portion of the wire harness W. The protector body 2 is formed in a shape in which a gutter-like body is bent into an L-shape with its bottom wall inside, and an inner plate (substrate) 3 corresponding to the bottom wall of the gutter is provided with a member to be attached. Hole 3 of a certain panel P
A clip 22 that resiliently engages with the projection 0 is integrally provided.

The clip 22 has the same structure as that described above. As shown in FIG. 2B, the clip 22 protrudes from the inner plate 21 and the head 23 engaging with the hole 30 of the panel P. The shaft 23 supports the head 23. Head 2
3 is provided with an elastic blade 26 having a locking step 25, and the locking step 25 engages with the peripheral edge of the hole 30 while the head 23 is inserted into the hole 30 of the panel P. The clip 22 is fixed.

FIG. 2 shows an inner plate 3 of the protector body 2.
As shown in detail in FIGS.
U-shaped slit 5 is formed so as to surround. The slit 5 is formed so that the lower side faces the L-shaped corner portion 4 of the protector main body 2, that is, the U-shaped opening side faces the opposite direction to the corner portion 4. The portion surrounded by the slit 5 is a portion 6 not forming the slit 5 (hereinafter, this portion is referred to as a “connection portion”).
The tongue 7 is configured to bend and deform around the fulcrum, and the clip 22 is provided on the tongue 7. In this case, the tongue piece 7 is flush with the inner plate 3,
The clip 22 protrudes from the inner plate 3.

When this protector is used, the wire harness W is housed in the protector body 2 and the tape T is wound and fixed in the same manner as in the conventional example described above. Next, the clip 22 is inserted into the hole 30 of the panel P, and the locking step 25 is resiliently engaged with the periphery of the hole 30 by the elastic force of the elastic blade 26, thereby completing the mounting.

In this state, when a force F (a force in a direction in which the clip 22 is pulled out of the hole 30 of the panel P) acts as shown in FIG. 3, the protector body 2 receives the force and separates from the panel P. When the tongue piece 7 is bent with the connecting portion 6 as a fulcrum, the clip 22 does not reach the clip 22. Therefore, the clip 22 does not easily come off the hole 30,
Moreover, the risk of damage is reduced.

In the above embodiment, the case where the present invention is applied to a protector is shown. However, the clamp device of the present invention can of course be applied to fixing other parts.

[0019]

[Effects of the Invention] As described above, according to the present invention,
The bending of the tongue piece absorbs the force in the direction in which the clip comes off. Therefore, detachment and breakage of the clip can be effectively prevented. Further, since this can be realized only by forming a U-shaped slit in the substrate, the structure is simple and it can be put to practical use at low cost.

[Brief description of the drawings]

FIG. 1 is an external view of an embodiment of the present invention.

FIG. 2 is a detailed view of a main part of the embodiment, in which (a) is a front view and (b) is a perspective view.

FIG. 3 is an explanatory diagram of an operation in a use state of the embodiment.

FIG. 4 is a view showing an example of a protector provided with a conventional clamping device, wherein (a) is an external view and (b) is a side sectional view.

FIG. 5 is a diagram for explaining a problem of the conventional clamping device.

[Explanation of symbols]

 Reference Signs List 1 protector 2 protector body 3 inner plate (substrate) 5 slit 7 tongue piece

Claims (1)

(57) [Scope of request for utility model registration] 1. A clamp device in which a clip that resiliently engages with a hole of an object to be mounted protrudes from a flat substrate on the mounting member side, wherein a U-shaped slit is formed in the substrate. Wherein the tongue is surrounded by a slit and is capable of being bent and deformed flush with the substrate, and the clip is projected on the tongue.