Wire harness retention structure

Abstract

To improve productivity. [Solution] A wire harness holding structure for holding a wire harness within the holding portion, comprising: a clamp having a U-shaped holding portion and a main body portion extending from one end of the holding portion and including a bolt hole; a bolt having a shaft portion and a head portion provided at the tip of the shaft portion, the shaft portion being inserted through the bolt hole from the opening side of the holding portion to fix the clamp to the object to be fixed, wherein the bolt hole and bolt are formed such that the length of the gap between the other end of the holding portion of the clamp and the head of the bolt is shorter than the diameter of the wire harness.

Description

Technical Field

[0001] The present disclosure relates to a holding structure for a wire harness.

Background Art

[0002] Conventionally, as a holding structure for this type of wire harness, a clamp (bracket) having a holding portion for holding the wire harness in a U shape has been proposed (see, for example, Patent Document 1). The holding portion includes a horizontal portion extending in the horizontal direction, a spring portion having appropriate elasticity, and an arcuate portion connecting the horizontal portion and the spring portion. The spring portion has waves in a substantially S shape such that the opening width near the open end of the U shape of the holding portion is shorter than the diameter of the wire harness. Thereby, in the holding structure of the wire harness, unintentional detachment of the wire harness from the holding portion is suppressed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described holding structure for a wire harness, in order to prevent unintentional detachment of the wire harness from the holding portion, it is necessary to make the shape and opening tolerance of the holding portion strict. Therefore, in the above-described holding structure for a wire harness, productivity is reduced.

[0005] The main object of the holding structure for a wire harness of the present disclosure is to improve productivity.

Means for Solving the Problems

[0006] The holding structure for a wire harness of the present disclosure has taken the following means to achieve the above main object.

[0007] The wire harness retention structure of this disclosure is A clamp having a U-shaped holding portion and a main body portion extending from one end of the holding portion and including a bolt hole, A bolt having a shaft portion and a head portion provided at the tip of the shaft portion, wherein the shaft portion is inserted through the bolt hole from the opening side of the holding portion to fix the clamp to the object to be fixed, A wire harness holding structure comprising, which holds the wire harness within the holding portion, The bolt holes and bolts are formed such that the length of the gap between the other end of the holding portion of the clamp and the head of the bolt is shorter than the diameter of the wire harness. This is the gist of it.

[0008] In the wire harness holding structure of this disclosure, the bolt holes and bolts are formed such that the length of the gap between the other end of the clamp's holding portion and the bolt head is shorter than the diameter of the wire harness. This prevents the wire harness from detaching from the holding portion. Since this holding structure does not require strict tolerances for the shape of the holding portion or the opening, the wire harness holding structure of this disclosure can improve productivity.

[0009] In the wire harness holding structure of this disclosure, the head of the bolt may be formed in a cylindrical shape. This prevents damage to the wire harness from being caused by the bolt head. [Brief explanation of the drawing]

[0010] [Figure 1] This is a schematic diagram showing how a clamp for holding a wire harness, using the wire harness holding structure of the embodiment of this disclosure, is attached to an electric vehicle (object to be fixed). [Figure 2] This is a schematic side view showing the configuration of the clamp and bolt in the wire harness holding structure of the embodiment, as viewed from the side. [Figure 3]This is a schematic diagram showing how a clamp for holding a wire harness, using a wire harness holding structure from another embodiment, is attached to an electric vehicle. [Figure 4] This is a schematic side view showing the configuration of the clamp and bolt in the wire harness holding structure of another embodiment, as viewed from the side. [Modes for carrying out the invention]

[0011] Embodiments of this disclosure will be described with reference to the drawings. Figure 1 is a schematic diagram showing how a clamp 20 for holding a wire harness 10 using the wire harness holding structure of this embodiment is attached to an electric vehicle (object to be fixed). Figure 2 is a schematic side view showing the configuration of the clamp 20 and bolt 30 in the wire harness holding structure of the embodiment, viewed from the side. As shown in Figure 1, the wire harness holding structure of the embodiment is a structure used to hold a wire harness 10 from a motor 14 located in the motor room 12 of an electric vehicle using a clamp 20.

[0012] As shown in Figure 1, the clamp 20 is placed inside the motor room 12 together with the motor 14 and the resolver 16 that detects the rotational speed of the motor 14, and is attached inside the motor room 12 by bolts 30. As shown in Figures 1 and 2, the clamp 20 comprises a holding portion 22 and a main body portion 24. The holding portion 22 is formed in a U shape and holds a part of the wire harness 10 within the U shape. The main body portion 24 extends from one end of the holding portion 22. A bolt hole 24a is formed in the main body portion 24 near the holding portion 22. The bolt 30 comprises a shaft portion 30a with threads on its surface and a hexagonal prism-shaped head portion 30b provided at the tip of the shaft portion 30a. The shaft portion 30a of the bolt 30 is inserted through the bolt hole 24a from the opening side of the holding portion 22 and fixed to a bolt hole (not shown) provided in the motor room 12. Thus, in the wire harness holding structure of this embodiment, the clamp 20 is fixed to the motor room 12 using bolts 30.

[0013] In the wire harness holding structure of this embodiment, as shown in Figure 2, the bolt hole 24a of the main body 24 of the clamp 20 and the bolt 30 are formed such that the length Wg of the gap 30g between the other end 22e of the holding portion 22 of the clamp 20 and the head 30b of the bolt 30 is shorter than the diameter Rwh of the wire harness 10.

[0014] With these bolt holes 24a and bolts 30, when the wire harness 10 is held in the clamp 20, if the wire harness 10 is positioned within the U-shape of the holding portion 22 and then the bolts 30 are inserted through the bolt holes 24a of the clamp 20, the length Wg becomes shorter than the diameter Rwh, thereby preventing the wire harness 10 from detaching from the holding portion 22. In the wire harness holding structure of this embodiment, there is no need to tighten the tolerances of the shape of the holding portion 22 or the gap 30g, or to add parts to prevent the wire harness 10 from detaching from the holding portion 22, thus improving ease of assembly. As a result, productivity can be improved in the wire harness holding structure of this embodiment.

[0015] According to the wire harness holding structure of this embodiment described above, productivity can be improved by shaping the bolt hole 24a of the main body 24 of the clamp 20 and the bolt 30 such that the length Wg of the gap 30g between the other end 22e of the holding portion 22 of the clamp 20 and the head 30b of the bolt 30 is shorter than the diameter Rwh of the wire harness 10.

[0016] In the above-described embodiment, the head 30b of the bolt 30 has a hexagonal prism shape. However, instead of the bolt 30, a bolt 130 having a cylindrical head 130b may be used. FIG. 3 is a schematic view showing a state where a clamp that holds a wire harness by applying a wire harness holding structure of another embodiment is attached to an electric vehicle. FIG. 4 is a side schematic view showing a schematic configuration when the clamp and the bolt in the wire harness holding structure of another embodiment are viewed from the side. In another embodiment, by using the bolt 130 having a cylindrical head 130b, when the wire harness 10 comes into contact with the head 30b, it comes into contact with a curved surface, so that damage to the wire harness 10 by the head 30b of the bolt 130 can be suppressed.

[0017] In the above-described embodiment, the shaft portion 30a of the bolt 30 has threads on its surface. However, it is sufficient that at least a part of the shaft portion 30a of the bolt 30 has threads, and the shaft portion 30a may not have threads from the end from the head 30b to a predetermined position.

[0018] The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems will be described. In the embodiment, the holding portion 22 corresponds to the "holding portion", the main body portion 24 corresponds to the "main body portion", the clamp 20 corresponds to the "clamp", the shaft portion 30a corresponds to the "shaft portion", the head 30b corresponds to the "head", the bolt 30 corresponds to the "bolt", and the gap 30g corresponds to the "gap".

[0019] Note that the correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems is an example for specifically explaining the form for implementing the invention described in the column of means for solving the problems in the embodiment, and does not limit the elements of the invention described in the column of means for solving the problems. That is, the interpretation of the invention described in the column of means for solving the problems should be made based on the description in that column, and the embodiment is merely a specific example of the invention described in the column of means for solving the problems.

[0020] As described above, the embodiments for implementing the present disclosure have been described using embodiments. However, the present disclosure is not limited to such embodiments, and it is needless to say that the present disclosure can be implemented in various forms without departing from the gist of the present disclosure.

Industrial Applicability

[0021] The present disclosure can be used in the manufacturing industry of a holding device for a wire harness and the like.

Explanation of Signs

[0022] 10 Wire harness, 12 Motor room, 14 Motor, 16 Resolver, 20 Clamp, 22 Holding part, 22e End, 24 Body part, 24a Bolt hole, 30 Bolt, 30a Shaft part, 30b Head, 30g Gap, 130 Bolt, 130b Head.

Claims

1. A clamp having a U-shaped holding portion and a main body portion extending from one end of the holding portion and including a bolt hole, A bolt having a shaft portion and a head portion provided at the tip of the shaft portion, wherein the shaft portion is inserted through the bolt hole from the opening side of the holding portion to fix the clamp to the object to be fixed, A wire harness holding structure comprising, which holds the wire harness within the holding portion, The bolt holes and bolts are formed such that the length of the gap between the other end of the holding portion of the clamp and the head of the bolt is shorter than the diameter of the wire harness. Wire harness retention structure.

2. A wire harness holding structure according to claim 1, The head of the bolt is formed in a cylindrical shape. Wire harness retention structure.

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