JPH0932973A - Mounting structure of bracket on harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fix a bracket to a harness easily and reliably at a low cost by a method wherein a mounting member wound togetherwith a wire group and mounted integrally with a harness is arranged at the base end of a bracket and a pressure contact surface brought into press contact with the mounting member along the outer periphery of the mounting member is provided. SOLUTION: Since a press contact surface 10 is brought into firm pressure contact with the outer periphery of a wire group 3 by a covering material 4, high rigidity of a harness 1 against a bracket 5 is provided. Namely, drag of a pressure contact surface 10 is against the stress of the upper component of a mounting part 6, drag of the upper surface of the mounting part 6 is against the stress of the lower component of the mounting part 6, and a friction force between the press contact surface 10 and the outer peripheral surface of the wire group 3 and between the upper surface of the mounting part 6 and a covering material 4 is against the stress of the axial component of the harness 1 for being offset thereby. Besides, since the whole of the press contact surface 10 of the mounting part 6 is positioned facing a wire group 3 and forced into pressure contact therewith, a friction force exerted between the press contact surface 10 and the outer periphery of the wire group 3 is further increased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness in which a plurality of wires such as electric wires and cables are wound and bundled with a tape-like covering material, and more specifically, a harness is wound with a covering material together with a plurality of wires. The present invention relates to a mounting structure of a rotated bracket.

[0002]

2. Description of the Related Art Conventionally, a mounting structure of a bracket wound with a tape-like covering material together with a plurality of wirings of this type is
For example, Japanese Utility Model Publication No. 57-73984 (Fig. 4 of the same publication).
The following are known. The mounting structure of this bracket is as follows. That is, a reinforcing wire is bundled together with a plurality of wirings in the harness, and a part of the reinforcing wire is exposed to the outside of the harness. On the other hand, a through hole is formed at the base end of the bracket. The bracket is attached to the harness by inserting the through hole of the bracket into the exposed reinforcing wire.

[0003]

However, in the bracket mounting structure in the above-mentioned prior art, since the through hole of the bracket is inserted through the reinforcing wire, the harness and the bracket rotate relatively around the reinforcing wire. It will move.
Therefore, when the vibration from the engine is transmitted to the bracket while the tip of the bracket is attached to the vehicle body of an automobile or the like, the harness sways against the bracket to cause abnormal noise, or the harness hits the vehicle body and is damaged. However, there is a problem that the life of the harness is shortened.

Therefore, in order to solve such a problem and securely fix the harness to the vehicle body, there is a conventional technique shown in FIG. That is, the brackets 15 have gripping portions 16, 17
Is provided, the harness 18 is inserted between the grips 16 and 17, and then bent in the direction of the harness 18. Therefore, the bracket 15 is fixed to the harness 18, and the bracket 15
The problem due to the above-mentioned vibration can be solved by fixing the to the vehicle body with bolts or the like.

However, this conventional technique still has the following problems. When bending the grips 16 and 17 manually, the workability is poor, and if the bending is insufficient, the grips 16 and 17 cannot be securely fixed. On the other hand, when machining is performed, the equipment cost becomes very expensive.

The present invention solves the problems described above, and an object thereof is to fix a bracket to a harness easily and reliably at low cost.

[0007]

The invention according to claim 1 is directed to a harness in which a tape-like covering material is wound around the outer periphery of a wire group in which a plurality of wires such as electric wires and cables are arranged. In a mounting structure of a bracket to be mounted, a mounting member is provided at the base end of the bracket, which is wound together with the wire group by the covering material and is mounted integrally with the harness. The gist of the invention is to provide a pressure contact surface that is pressure contacted along at least a part of the surface. According to this structure, since the mounting member is wound with the wire group by the covering material, the stress generated between the harness and the bracket when an external force such as vibration is applied to the bracket is the stress of the upper component of the mounting member. Is the resistance force of the pressure contact surface, the stress of the lower component of the mounting member is the reaction force of the upper surface of the mounting member, and the stress of the axial component of the harness is both between the pressure contact surface and the wire group and between the upper surface of the mounting member and the covering material. Are offset by the frictional forces of. Further, the harness of the bracket is attached by winding the wire group and the attaching member together with a covering material.

The invention according to claim 2 is characterized in that the entire pressure contact surface faces the line group. According to this configuration, in addition to the function of the invention described in claim 1,
The frictional force between the pressure contact surface and the line group is further increased.

The invention according to claim 3 is characterized in that the pressure contact surface is curved in a part of the inner surface of a cylinder and extends from the base end of the bracket toward the outer peripheral surface of the wire group. Is. According to this configuration, in addition to the action of the invention described in claim 1 or 2, the cross-sectional shape of the portion of the wire group to which the mounting member is attached is maintained in a substantially circular shape, so that the pressure contact surface is uniform and reliable. Pressed. Then, both the drag forces between the pressure contact surface and the upper surface of the mounting member and the frictional force between the pressure contact surface and the line group and between the upper surface of the mounting member and the covering material are further increased.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A bracket mounting structure for a harness according to an embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the harness 1 includes a wire group 3 in which a plurality of electric wires 2 are arranged, and a tape-shaped covering material tightly wound around the wire group 3. 4 and. The outer circumference of the wire group 3 has a substantially circular shape, and the electric wires 2 of the wire group 3 are in close contact with each other by a covering material 4.

A mounting portion 6 as a mounting member is provided at the base end of the bracket 5, and the bracket 5 and the mounting portion 6 are integrally formed. The mounting portion 6 is wound around the covering material 4 together with the wire group 3 and is mounted integrally with the harness 1. That is, the harness 1 and the bracket 5 are attached to the mounting portion 6.
Are integrated through. An insertion hole 7 is formed at the tip of the bracket 5. The bracket 5 is fastened and fixed to a vehicle body 8 such as a forklift truck by a bolt 9 inserted through the insertion hole 7. And harness 1
Is pressed against the vehicle body 8 by the elastic force of the bracket 5.

The lower surface of the mounting portion 6 is a pressure contact surface 10 which is in pressure contact with a part of the outer periphery of the wire group 3. The mounting portion 6 has, for example, a substantially rectangular shape when viewed from above, and has the pressure contact surface 10 described above.
Is formed so as to be curved in a part of the inner surface of a cylinder, and the radius of curvature of the pressure contact surface 10 is substantially the same as the outer diameter of the line group 3. Therefore, the entire press-contact surface 10 of the mounting portion 6 faces the outer periphery of the line group 3 and is press-contacted uniformly and surely. The base end of the bracket 5 is located substantially at the center of the mounting portion 6, and the mounting portion 6 projects from the peripheral edge of the base end of the bracket 5 toward the outer peripheral surface of the wire group 3. Particularly, in the present embodiment, the inner diameter of the wire group 3 is about 1.5 cm, and the mounting portion 6 projects from the base end peripheral edge of the bracket 5 by about 1.0 cm.

Next, the harness 1 constructed as described above
The operation and effect of the mounting structure of the bracket 5 with respect to will be described. Vibration from the car body 8 causes the bracket 5
Is transmitted, the bracket 5 and the harness 1 move integrally. That is, since the press contact surface 10 is firmly pressed against the outer circumference of the wire group 3 by the covering material 4, the harness 1 has high rigidity with respect to the bracket 5. Specifically, the stress of the pressure contact surface 10 is applied to the stress of the upper component of the mounting portion 6, the resistance of the upper surface of the same mounting portion 6 is applied to the stress of the lower component of the mounting portion 6, and the stress of the axial component of the harness 1 is used. Pressure contact surface 10
Between the outer peripheral surface of the wire group 3 and the upper surface of the mounting portion 6 and the covering member 4
Both frictional forces between and resist each other and are offset. Moreover, since the entire press contact surface 10 of the mounting portion 6 is pressed against the line group 3 in a pressure contact manner, the frictional force acting between the press contact surface 10 and the outer periphery of the line group 3 is further increased.

Further, since the radius of curvature of the pressure contact surface 10 is curved and overhangs so as to be substantially the same as the outer diameter of the wire group 3, the frictional force acting between the pressure contact surface 10 and the outer periphery of the wire group 3 is generated. It is further enhanced. Further, the bracket 5 is attached to the harness 1 only by winding the covering material 4 in a state in which the pressure contact surface 10 is in contact with the wire group 3, and it is extremely inexpensive without requiring any special equipment or means. And easily. It is easy to attach the bracket 5 to the vehicle body 8 because it is tightened with the bolt 9.

As described above, in the present embodiment, since the mounting portion 6 is provided at the base end of the bracket 5 and the lower surface of the mounting portion 6 is the pressure contact surface 10 that press-contacts the wire group 3, It is possible to prevent the position of the harness 1 from moving with respect to the bracket 5. Moreover, the elastic force of the bracket 5 allows the harness 1 to be held in a state of being pressed against the vehicle body 8. Therefore, it is possible to prevent the harness 1 from swinging with respect to the bracket 5, prevent the harness 1 from hitting the vehicle body 8 and generate an abnormal noise, and at the same time prevent the harness 1 from being damaged, thereby extending the life of the harness 1. be able to. Further, the bracket 5 can be easily attached to the harness 1 at low cost.

The present invention may be configured as follows in addition to the above-described embodiment. (1) Although the harness 1 is attached to the vehicle body 8 of the forklift truck via the bracket 5 in the above-described embodiment, it can be applied to vehicles such as automobiles, vehicles such as trains, ships, airplanes, power distribution devices such as switches, and buildings. It is also possible to apply.

(2) In the above embodiment, the electric wire 2 is applied, but the present invention is not limited to this, and a harness having a covering material can be applied. (3) The bracket 5 and the mounting portion 6 are made of synthetic resin,
It may be manufactured using any material such as metal.

(4) Although the bracket 5 is provided at the center of the mounting portion 6 in the above embodiment, it is provided at a position eccentric with respect to the circumferential direction of the mounting portion 6 as shown in FIG. 3 (a). Good. (5) In the above embodiment, the mounting portion 6 is provided on the upper portion of the wire group 3, but as shown in FIG. 3B, the mounting portion 6a is formed so as to extend to the lower portion of the wire group 3. Good. According to this configuration, since the pressure contact surface 10 increases, it is possible to further prevent the line group 3 from moving with respect to the mounting portion 6a. Further, as shown in FIG. 3 (c), it is possible to leave the opening slightly and use the mounting portion 6b formed in a substantially cylindrical shape. According to this configuration, since the pressure contact surface 10 increases, it is possible to further prevent the line group 3 from moving with respect to the mounting portion 6b. In addition, the mounting portions 6a and 6b are connected to the wire group 3
On the other hand, since it can be temporarily fixed, the work of winding the covering material 4 becomes easier.

(6) In the above-described embodiment, the entire pressure contact surface 10 has a flush structure. However, as shown in FIG. 3D, the pressure contact surface 10 has a ridge extending at the center of the cross section of the wire group 3. 12 may be formed. According to this structure, the ridge portion 12 is used for each electric wire 2
Since the space between the wire group 3 and the pressure contact surface 10 is increased because of entering the gap between them, an anchor effect is also obtained, and thus the wire group 3 can be further prevented from moving with respect to the mounting portion 6. .

(7) In the above-described embodiment, the pressure contact surface 10 formed in the shape of a part of the inner surface of the cylinder is used, but as shown in FIG. 3 (e), it is possible to provide a mounting portion 6c formed in a flat shape. Is. Further, as shown in FIG. 3 (g), it is possible to provide a mounting portion 6d having a cross shape when viewed from above and form the pressure contact surface 10 in a curved cross shape.

(8) In the above embodiment, the mounting portion 6 does not have elasticity, but as shown in FIG. 3 (f), the mounting portion 6e is biased toward the center of the cross section of the wire group 3. It is also possible to sandwich the wire group 3 between the mounting portions 6 by configuring the above. With this configuration, the pressure contact force of the pressure contact surface 10 with respect to the line group 3 can be further increased. Further, since the attachment portion 6e can be temporarily fixed to the wire group 3, the work of winding the covering material 4 becomes easier.

(9) The bracket mounting portion does not necessarily have to be an integral type, but may be a split fixed type such as a bolt. Next, technical ideas other than the claims that can be understood from the embodiment will be described together with their effects.

(A) The bracket mounting structure for a harness according to any one of claims 1 to 3, wherein a base end of the bracket is arranged at a center of the press contact surface. With this configuration, when an external force such as vibration is applied to the bracket, the action of preventing the line group from moving with respect to the attachment portion is not biased by the direction of the external force.

[0025]

According to the first aspect of the invention, the bracket can be easily and reliably fixed to the harness at low cost.

According to the invention described in claim 2, according to claim 1
In addition to the effects of the invention described in (1), the frictional force between the pressure contact surface and the wire group can be increased, and the harness 1 can be attached to the bracket 5
The position of can be prevented from moving.

According to the invention described in claim 3, according to claim 1
Alternatively, in addition to the effect of the invention described in claim 2, the frictional force acting between the press contact surface and the outer circumference of the wire group can be further increased, and the position of the harness with respect to the bracket is reliably prevented. be able to.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a bracket and a mounting portion showing an embodiment of the present invention.

FIG. 2 is a perspective view of a bracket and a mounting portion.

FIG. 3 is a side view of various mounting portions having different shapes according to another embodiment.

FIG. 4 is a perspective view of a bracket showing a conventional technique.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Harness, 2 ... Electric wire (wiring), 3 ... Wire group, 4 ... Covering material, 6 ... Attachment part (attachment member), 10 ... Pressure contact surface.

Claims (3)

[Claims] 1. A bracket mounting structure for mounting on a harness formed by winding a tape-shaped covering material around an outer periphery of a wire group in which wirings such as a plurality of electric wires and cables are arranged. A mounting member that is wound together with the wire group by the covering material and is mounted integrally with the harness, and the mounting member is provided with a pressure contact surface that is pressure-contacted along at least a part of the outer periphery of the wire group. Bracket mounting structure for the harness. 2. The bracket mounting structure for a harness according to claim 1, wherein the entire pressure contact surface faces the wire group. 3. The pressure contact surface is curved in a part of a cylindrical inner surface,
The bracket mounting structure for a harness according to claim 1 or 2, which projects from the base end of the bracket toward the outer peripheral surface of the wire group.