JPH0536184U - Clamp device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a clamp device that has a simple structure and does not easily come off. [Structure] A clip 22 elastically engaged with a hole 30 of a panel P is provided on an inner plate 3 of a protector body 2 so as to project therefrom. This clip 22 is provided so as to project on a flexibly deformable tongue piece 7 formed by inserting a U-shaped slit 5 in the inner plate 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a clamp device in which a clip that elastically engages with a hole of an attachment target member is provided on a base plate on the attachment member side.

[0002]

[Prior Art]

 This type of clamping device is often used for wire harness protectors and the like. FIG. 4 shows an example of a protector provided with the clamp device. As shown in FIG. 4 (a), the protector body 20 for protecting the bent portion of the wire harness W is formed by bending a gutter-shaped body into an L-shape with its bottom wall inside, and An inner plate (substrate) 21 corresponding to the bottom wall of the gutter is integrally provided with a clip 22 that elastically engages with a hole 30 of a panel P that is an attachment target member.

As shown in FIG. 2B, the clip 22 includes a head portion 23 that engages with the hole 30 of the panel P and a shaft portion 24 that projects from the inner plate 21 and supports the head portion 23. . The head portion 23 is provided with elastic blades 26 having a locking step 25, and the locking step 25 engages with the peripheral edge of the hole 30 in a state where the head 23 is inserted into the hole 30 of the panel P. Thus, the clip 22 is fixed.

When using this protector, first, the wire harness W is housed in the protector body 20, and a tape T is wound around the end of the protector body 20 to fix it. Then, the clip 22 is inserted into the hole 30 of the panel P, and the locking step 25 is elastically engaged with the peripheral edge of the hole 30 by the elastic force of the elastic blade 26, thereby completing the attachment.

By the way, in the conventional clamp device, since the clip 22 is directly provided on the inner plate 21 and has a structure that does not allow bending, a force as indicated by an arrow F in FIG. 5 acts on the wire harness W. In this case, the clip 22 that is elastically engaged with the hole 30 of the panel P is easily disengaged, and if it is not disengaged, excessive force is applied to the shaft portion 24 of the clip 22 and the clip 22 is easily damaged. was there.

On the other hand, as an example of a clamp device similarly having a clip, those described in Japanese Utility Model Publication No. 1-69322 and Japanese Utility Model Publication No. 64-20021 are known. The former is one in which a clip is attached to a substrate via a movable plate, and the clip is movable in the direction along the surface of the substrate. However, since this structure does not allow bending, it is weak against the force in the pulling direction. The latter is one in which a clip is provided on the substrate via a flexible supporting portion. Although this allows flexing, it is not weak enough to flex in the pull-out direction, so it is similarly weak against pull-out force. Moreover, the structure is extremely complicated.

Separately from that, Japanese Utility Model Laid-Open No. 60419/1990 discloses a technique for holding a branch line by an elastic holding piece which can be flexibly deformed. However, since it does not have a clip, there is no problem of the clip coming off or breaking.

[0008]

[Problems to be solved by the device]

 As described above, the conventional clamp device has a structure that does not allow the clip to bend in the pull-out direction, and thus there is a problem in that the clip is easily removed from the panel hole or damaged. Further, the technique described in the conventional publication could not be expected to sufficiently contribute to the solution of such a problem.

Therefore, the present invention has an object to provide a clamp device which surely absorbs a force in the pulling-out direction to solve the problem of detachment and breakage of a clip and which can be realized with a simple structure. And

[0010]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a clamping device, in which a clip that elastically engages with a hole of a member to be mounted is projected on a substrate on the side of the mounting member. It is characterized in that a flexibly deformable tongue surrounded by the slit is formed by inserting a slit, and the clip is projected on the tongue.

[0011]

[Action]

 In the clamp device of the present invention, when a force in the relative direction of removal acts between the base plate and the clip, the tongue bends to absorb the force. Therefore, the pulling force is less likely to act on the clip, which prevents the clip from coming off, and also reduces the risk of breakage by not applying excessive force.

[0012]

【Example】

 An 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. This protector 1 has a protector body 2 that protects the L-shaped bent portion of the wire harness W. The protector body 2 is formed by bending a gutter-shaped body into an L-shape with its bottom wall inside, and an inner plate (substrate) 3 corresponding to the bottom wall of the gutter is a member to be attached. A clip 22 that elastically engages with a hole 30 of a certain panel P is integrally projected.

The clip 22 has the same structure as that described above, and as shown in FIG. 2B, the clip 23 projects from the head 23 that engages with the hole 30 of the panel P and the inner plate 21. And a shaft portion 24 that supports the head portion 23 of the. The head 23 is provided with elastic blades 26 having a locking step 25, and the locking step 25 engages with the peripheral edge of the hole 30 when the head 23 is inserted into the hole 30 of the panel P. As a result, the clip 22 is fixed.

As shown in detail in FIGS. 2A and 2B, the inner plate 3 of the protector body 2 is provided with a U-shaped slit 5 so as to surround the clip 22. The slit 5 is formed so that the lower side faces the L-shaped corner portion 4 of the protector body 2, that is, the U-shaped opening side faces the direction opposite to the corner portion 4. The portion surrounded by the slits 5 is configured as a tongue piece 7 that is flexibly deformed with a portion 6 that does not form the slit 5 (hereinafter, this portion is referred to as a "connecting portion") as a fulcrum. The clip 22 is provided on the tongue piece 7.

When using this protector, the wire harness W is housed in the protector body 2 and the tape T is wound and fixed, as in the conventional example described above. Then, the clip 22 is inserted into the hole 30 of the panel P, and the locking step 25 is elastically engaged with the peripheral edge of the hole 30 by the elastic force of the elastic blade 26, thereby completing the attachment.

In this state, when a force F (a force in the direction of pulling out the clip 22 from the hole 30 of the panel P) is applied as shown in FIG. 3, the protector main body 2 side receives the force and is removed from the panel P. Although separated, the tongue 7 bends around the connecting portion 6 as a fulcrum, so that the clip 22 does not receive the force. Therefore, the clip 22 is less likely to come off the hole 30, and the risk of damage is reduced.

Although the present invention is applied to the protector in the above embodiment, the clamp device of the present invention can of course be applied to the fixing of other components.

[0019]

[Effect of the device]

 As described above, according to the present invention, the bending of the tongue absorbs the pulling force of the clip. Therefore, it is possible to effectively prevent the clip from coming off or being damaged. Further, since this can be achieved by simply inserting 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 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, (a) is a front view and (b) is a perspective view.

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

FIG. 4 is a diagram showing an example of a protector including a conventional clamp device, (a) is an external view, and (b) is a side sectional view.

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

[Explanation of symbols]

 1 protector 2 protector body 3 inner plate (substrate) 5 slit 7 tongue

Claims (1)

[Scope of utility model registration request] 1. A clamp device comprising a mounting member-side board provided with a clip that elastically engages a hole of a mounting target member, and a U-shaped slit is formed in the board to form a slit. A clamping device, characterized in that an enclosed flexibly deformable tongue is formed and the clip is projected on the tongue.