JP7235570B2 - clamp - Google Patents

Description

The present invention relates to clamps.

2. Description of the Related Art A wire harness that is routed in a vehicle such as an automobile is routed while being supported by a vehicle body panel by a resin clamp. This type of clamp has a locking portion that is inserted into a mounting hole formed in the panel, and locking blades formed in this locking portion lock the edge of the mounting hole to lock the panel. (See Patent Documents 1 to 3, for example).

JP-A-11-303826 JP-A-50-121655 Japanese Utility Model Laid-Open No. 3-100610

By the way, a slight clearance is provided between the engaging portion of the clamp inserted into the mounting hole and the inner circumference of the mounting hole in order to absorb dimensional variations. Therefore, even if the mounting hole has an oval shape, rattling in the rotational direction occurs due to the clearance. As a result, the wiring route of the wire harness supported by the panel by the clamps is regulated differently, and the wire harness interferes with surrounding parts and structures, and it becomes difficult for the wire harness to pass through the preset route. something happened.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a clamp that can be fixed to a panel without rattling.

In order to achieve the above object, a clamp according to the present invention is characterized by the following (1) to ( 2 ).
(1) A clamp assembled in an oblong mounting hole formed in a panel to support an object to be mounted on the panel,
a base portion to which the object to be attached is fixed;
a locking portion projecting from the base portion and fitted into the mounting hole;
a locking blade that is formed in the locking portion and locks a front edge portion of the locking portion in the mounting hole in the fitting direction;
an elastic portion that is formed in the locking portion and presses the inner peripheral surface of the long side portion of the mounting hole;
with
The elastic portion is continuously provided on the front side of the engaging portion in the fitting direction to the mounting hole and protrudes outward from the engaging portion.
A clamp characterized by:

( 2 ) an end of the elastic portion opposite to a connection end with the locking portion is passed through an opening formed in the base;
The end of the elastic portion opposite to the connection end with the locking portion is bent and folded back on the side opposite to the mounting side of the base portion to the panel, and is opposite to the direction of elastic deformation of the elastic portion. The clamp according to ( 1 ), characterized in that a connecting band portion is formed continuously with the base portion on the side thereof.

According to the clamp having the configuration (1) above, when the locking portion is fitted into the oblong mounting hole of the panel, the locking blade engages the front edge of the locking portion in the mounting hole in the fitting direction. stop. Thereby, the clamp is fixed to the panel, and the mounting object fixed to the base portion is supported by the panel. At this time, the elastic portion formed in the engaging portion presses the inner peripheral surface of the long side portion of the mounting hole, so that the engaging portion is pressed against the inner peripheral surface of the other long side portion. As a result, rattling of the engaging portion with respect to the mounting hole in the rotational direction can be suppressed, and the object to be mounted can be supported on the panel without wobbling. For example, if the object to be installed is a wire harness, the problem of the wire harness wobbling against the panel and interfering with surrounding parts and structures, or making it difficult to pass through the preset route is eliminated. , can be satisfactorily routed along the set route.

Furthermore, according to the clamp having the configuration ( 1 ), when the locking portion is fitted into the mounting hole, the locking portion is continuously provided forward in the fitting direction of the locking portion into the mounting hole, and extends outward from the locking portion. The projecting elastic portion is pushed by the inner peripheral surface of the mounting hole and elastically deformed. As a result, the elastically deformed elastic portion presses the inner peripheral surface of the mounting hole by its elastic force. Therefore, the side opposite to the elastic portion of the locking portion is pressed against the inner peripheral surface of the mounting hole, and is supported without rattling on the panel.

According to the clamp having the configuration ( 2 ) above, the elastic portion pressed by the inner peripheral surface of the mounting hole can be prevented from becoming saggy by the connecting belt portion. As a result, it is possible to maintain an appropriate pressing force of the elastic portion against the inner peripheral surface of the mounting hole.

ADVANTAGE OF THE INVENTION According to this invention, the clamp which can be fixed with respect to a panel can be provided.

The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following detailed description of the invention (hereinafter referred to as "embodiment") with reference to the accompanying drawings. .

FIG. 1 is a perspective view of a clamp according to the present embodiment fixed to a panel. FIG. 2 is a perspective view of a clamp according to this embodiment. FIG. 3 is a perspective view of the clamp according to the present embodiment as viewed from the back side. 4A and 4B are views showing the clamp according to the present embodiment, FIG. 4A being a plan view, FIG. 4B being a front view, and FIG. 4C being a side view. FIG. 5 is a sectional view taken along the line AA in FIG. 4(b). FIG. 6 is a sectional view taken along the line AA in FIG. 4(b), showing the state before the clamp is attached to the panel. FIG. 7 is a cross-sectional view taken along the line AA in FIG. 4(b) showing how the clamp is attached to the panel. FIG. 8 is a plan view showing how the clamp is attached to the panel. FIG. 9 is a plan view showing how a clamp according to a reference example is attached to a panel.

Specific embodiments relating to the present invention will be described below with reference to each drawing.

FIG. 1 is a perspective view of a clamp 10 according to the present embodiment fixed to a panel. FIG. 2 is a perspective view of the clamp 10 according to this embodiment. FIG. 3 is a perspective view of the clamp 10 according to this embodiment as viewed from the back side.

As shown in FIGS. 1 to 3, a clamp 10 according to this embodiment is attached to a panel P that constitutes the body of a vehicle such as an automobile. The clamp 10 is molded from a synthetic resin such as polypropylene, and is attached to the panel P so that the wire harness W is supported by the vehicle body and routed along a preset route. . The panel P is formed with an oblong mounting hole H in plan view, and the clamp 10 is fitted into the mounting hole H of the panel P to be mounted.

4A and 4B are views showing the clamp 10 according to the present embodiment, in which FIG. 4A is a plan view, FIG. 4B is a front view, and FIG. 4C is a side view. FIG. 5 is a sectional view taken along the line AA in FIG. 4(b).

As shown in FIGS. 4A to 4C and 5, the clamp 10 has a base portion 20 and a locking portion 30. As shown in FIG. The base portion 20 is formed in a plate shape, and has a fixed surface 21 on one side and a supporting surface 23 on the other side. The base portion 20 is fixed to the panel P on the fixing surface 21 side, and the wire harness W is supported on the supporting surface 23 side. The wire harness W is supported on the support surface 23 of the base portion 20 by, for example, wrapping it with tape or tying it with a binding band. In addition, the support structure of the wire harness W to the support surface 23 of the base part 20 is not specifically limited.

The locking portion 30 protrudes from the fixed surface 21 of the base portion 20 . The engaging portion 30 has an oval engaging protrusion 31 in plan view. A distal end portion 33 of the locking projection 31 has a tapered shape that gradually narrows. The locking projection 31 has a column portion 35 erected from the base portion 20 and an outer wall portion 37 surrounding the column portion 35. The column portion 35 and the outer wall portion 37 are tapered. They are integrally connected at the leading end portion 33 that is formed. The locking projection 31 has an oval shape that is slightly smaller than the mounting hole H of the panel P in plan view.

The locking portion 30 has locking blades 41 at both ends of the locking protrusion 31 . These locking blades 41 are connected to the locking projection 31 at the tip portion 33 and gradually protrude outward toward the base portion 20 . As a result, the locking blade 41 protrudes from the contour of the locking projection 31 in plan view. These locking blades 41 have locking claws 43 on the outer edge portion on the base portion 20 side. Further, the locking blade 41 has a contact plate portion 45 projecting toward the base portion 20 at the end on the base portion 20 side. The contact plate portion 45 is formed on the inner side of the locking portion 30 with respect to the locking claw 43 . As a result, the locking blade 41 has a step formed between the locking claw 43 and the contact plate portion 45 . The interval between the locking claw 43 of the locking portion 30 and the fixing surface 21 of the base portion 20 is approximately the same as the thickness of the panel P. As shown in FIG.

The locking portion 30 has an elastic portion 51 on one side thereof. The elastic portion 51 is connected to the locking projection 31 at the distal end portion 33 of the locking portion 30 . The elastic portion 51 gradually protrudes outward toward the base portion 20 . As a result, the elastic portion 51 protrudes from the outer shape of the locking projection 31 in plan view. The elastic portion 51 is elastically deformable toward the inside of the locking portion 30 . The elastic portion 51 is passed through an opening 53 formed in the base portion 20 on the side opposite to the connection end with the locking projection 31 . A connecting belt portion 55 is formed on the elastic portion 51 passed through the opening portion 53 . The connecting band portion 55 is bent and folded back on the side of the support surface 23 of the base portion 20, and its end portion is connected to the edge portion of the opening portion 53 in the base portion 20 on the side opposite to the direction of elastic deformation of the elastic portion 51. It is

Next, the case of attaching the clamp 10 to the panel P will be described.
FIG. 6 is a cross-sectional view taken along line AA in FIG. 4B, showing the clamp 10 before being attached to the panel P. FIG. FIG. 7 is a cross-sectional view taken along the line AA in FIG. 4(b) showing how the clamp 10 is attached to the panel P. 8 is a plan view showing how the clamp 10 is attached to the panel P. FIG.

As shown in FIG. 6, the engaging portion 30 of the clamp 10 is brought closer to the mounting hole H of the panel P. Then, as shown in FIG. Then, as shown in FIG. 7, the engaging portion 30 of the clamp 10 is fitted into the mounting hole H. Then, as shown in FIG. Then, the locking blade 41 is once pushed inward by the inner peripheral surface of the mounting hole H and is elastically deformed, and then the locking claw 43 goes over the panel P and restores to the outside. As a result, the edge of the mounting hole H of the panel P enters between the base portion 20 and the locking claw 43, and the clamp 10 locks the panel P. As shown in FIG. Also, the contact plate portion 45 of the locking blade 41 contacts the inner peripheral surface of the mounting hole H. As shown in FIG. Thereby, the clamp 10 is fixed to the panel P without rattling in the longitudinal direction of the mounting hole H. By fixing the clamp 10 to the panel P, the wire harness W supported by the support surface 23 of the base portion 20 is routed along a preset route.

At this time, as shown in FIGS. 7 and 8, the elastic portion 51 of the locking portion 30 is pushed inward by the inner peripheral surface of the mounting hole H and is elastically deformed. As a result, the elastically deformed elastic portion 51 presses the inner peripheral surface of one of the long sides of the mounting hole H by its elastic force. Therefore, the locking portion 30 is pressed against the inner peripheral surface of the other long side portion of the mounting hole H on the side opposite to the elastic portion 51 . As a result, the locking protrusion 31 of the locking portion 30 and the mounting hole H are formed with a gap G only on one long side, and the other long side is brought into close contact with each other.

Here, the clamp according to the reference example will be described.
FIG. 9 is a plan view showing how the clamp 100 according to the reference example is attached to the panel.

As shown in FIG. 9 , in the clamp 100 according to the reference example, the locking portion 30 is not provided with the elastic portion 51 . In this clamp 100, when the locking portion 30 is fitted into the mounting hole H of the panel P, a gap G is formed on both sides of the long side portion between the mounting hole H and the locking projection 31. . Then, the gap G between the locking portion 30 and the mounting hole H causes rattling in the rotational direction (see arrow B in FIG. 9). Therefore, in this clamp 100, the regulation of the wiring route of the supported wire harness W is uneven, and the wire harness W interferes with surrounding parts and structures, and it is difficult for the wire harness W to pass through the preset route. There is a possibility that it will be.

On the other hand, according to the clamp 10 according to the present embodiment, the elastic portion 51 formed in the locking portion 30 presses the inner peripheral surface of the long side portion of the mounting hole H, so that the locking portion 30 is reversed. It is pressed against the inner peripheral surface of the long side portion of the side. As a result, rattling of the engaging portion 30 with respect to the mounting hole H in the rotational direction can be suppressed, and the wire harness W can be supported on the panel P without wobbling. As a result, problems such as interference with peripheral parts and structures caused by the wire harness W wobbled with respect to the panel P, and difficulty in passing through the preset route are eliminated, and the set routing route is prevented. can be routed well.

In addition, the elastic portion 51 has an end portion passed through the opening portion 53 that is bent and folded back on the side opposite to the mounting side of the base portion 20 to the panel P, and the elastic portion 51 is bent and folded back on the side opposite to the elastic deformation direction of the elastic portion 51 . A connecting belt portion 55 is formed continuously with the base portion 20 . Therefore, the connecting band portion 55 can suppress the elastic portion 51 pressed by the inner peripheral surface of the mounting hole H from becoming sag. As a result, the elastic portion 51 can maintain an appropriate pressing force against the inner peripheral surface of the mounting hole H. As shown in FIG.

It should be noted that the present invention is not limited to the above-described embodiments, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, number, location, etc. of each component in the above-described embodiment are arbitrary and not limited as long as the present invention can be achieved.

For example, in the above-described embodiment, the case where the wire harness W is supported on the panel P by the clamp 10 was illustrated, but the object to be mounted on the panel P by the clamp 10 is not limited to the wire harness W.

Here, the features of the clamps according to the embodiments of the present invention described above are briefly summarized in [1] to [3] below.
[1] A clamp (10) assembled in an oblong mounting hole (H) formed in a panel (P) to support an object to be mounted (wire harness W) on the panel P,
a base portion (20) to which the mounting object (wire harness W) is fixed;
a locking portion (30) projecting from the base portion (20) and fitted into the mounting hole (H);
a locking blade (41) formed in the locking portion (30) for locking the front edge of the locking portion (30) in the fitting hole (H) in the fitting direction;
an elastic portion (51) that is formed in the locking portion (30) and presses the inner peripheral surface of the long side portion of the mounting hole (H);
A clamp comprising:

[2] The elastic portion (51) is continuously provided on the front side of the engaging portion (30) in the fitting direction to the mounting hole (H) and protrudes outward from the engaging portion (30). The clamp according to [1], characterized in that

[3] The end of the elastic portion (51) opposite to the connection end with the locking portion (30) is passed through an opening (53) formed in the base portion (20),
The end of the elastic portion (51) opposite to the connection end with the locking portion (30) is bent on the side opposite to the mounting side of the base portion (20) to the panel (P). [2], characterized in that a connecting belt portion (55) is formed which is folded back and connected to the base portion (20) on the side opposite to the direction of elastic deformation of the elastic portion (51). clamp.

REFERENCE SIGNS LIST 10 clamp 20 base portion 30 locking portion 41 locking blade 51 elastic portion 53 opening 55 connecting belt portion H attachment hole P panel W wire harness (object to be attached)

Claims (2)

A clamp assembled in an oblong mounting hole formed in a panel to support an object to be mounted on the panel,
a base portion to which the object to be attached is fixed;
a locking portion projecting from the base portion and fitted into the mounting hole;
a locking blade that is formed in the locking portion and locks a front edge portion of the locking portion in the mounting hole in the fitting direction;
an elastic portion that is formed in the locking portion and presses the inner peripheral surface of the long side portion of the mounting hole;
with
The elastic portion is continuously provided on the front side of the engaging portion in the fitting direction to the mounting hole and protrudes outward from the engaging portion.
A clamp characterized by: the end of the elastic portion opposite to the connection end with the locking portion is passed through an opening formed in the base portion;
The end of the elastic portion opposite to the connection end with the locking portion is bent and folded back on the side opposite to the mounting side of the base portion to the panel, and is opposite to the direction of elastic deformation of the elastic portion. 2. The clamp according to claim 1 , wherein a connecting band portion is formed so as to be continuous with the base portion on the side thereof.

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