JP2003018727A - Clamp for corrugated tube for wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a clamp for a corrugated tube for a wiring harness capable of positioning and fixing the corrugated tube to a prescribed position on the harness only by performing a simple mounting operation. SOLUTION: The clamp 1 for the corrugated tube for the wiring harness comprises a tube-fixing part 2 fixed to the external surface of the end of the corrugated tube 30 and a harness-fixing part 3 capable of tightly fixing the wiring harness W/H exposed from the end of the tube. The clamp is also configured such that the harness-fixing part 3 is connected to the tube-fixing part 2 and integrated therewith.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated tube clamp for a wire harness which can be attached to an end portion of a corrugated tube for inserting and protecting a wire harness so that the corrugated tube can be positioned and fixed at a predetermined position on the harness.

[0002]

2. Description of the Related Art In automobiles and the like, a corrugated tube configured as a flexible tube is used for focusing and protecting wiring and piping. This corrugated tube 30
As shown in FIG. 5, for example, the wire harness W / H is sheathed on the wire harness W / H for the purpose of protecting the wire harness W / H over a predetermined area, and the end of the wire harness W / H is covered.
By winding the vinyl tape 32 together with the vinyl tape 32, the position is regulated at a predetermined position. In addition, the actual development Sho 62-14542
No. 6 discloses a corrugated tube end locking device. The terminal locking device of this corrugated tube will be described with reference to FIG. 6. In this terminal locking device 40, two locking members 44, which are connected to each other by a hinge 42, are provided at their free ends. It is provided so as to be attached to the outer periphery of the corrugated tube 30 by engaging 46 with each other. When the terminal locking device 40 is attached to the corrugated tube 30, the rib 48 projects from the inner wall of the half-split member 44 and fits into the annular recess 32 of the corrugated tube, and a predetermined distance from the rib 48. It is provided with a plurality of anti-rotation protrusions 50 that protrude inward at the separated outer positions and contact the outer periphery of the wire harness W / H. By attaching such a terminal locking member 40, it is possible to prevent the mouth opening of the two half members 44 and the rotation of the corrugated tube 30 around the harness.

[0003]

However, in the former case of winding the tape to regulate the position of the corrugated tube, there is a problem that it takes labor and labor because the winding of the tape is performed manually. Furthermore, when the outer diameter of the wire harness is thin enough to have a gap with respect to the inner diameter of the corrugated tube, for example, the corrugated tube must be attached after winding the tape to an appropriate thickness. At the same time, it took more time, and at the same time, the amount of tape used increased and the manufacturing cost increased.
Further, in the latter terminal locking device, as described above, although it is possible to prevent the mouth opening of the half-split member and the rotation of the corrugated tube around the harness, the axial direction of the corrugated tube on the harness is prevented. Was not sufficient as a position control means for preventing the movement of the. Therefore, in the wiring work of the wire harness, for example, the corrugated tube that should be externally mounted to prevent contact with other components may be displaced from a predetermined position, and the desired function may not be exhibited.

The present invention has been made in view of the above circumstances.
The corrugated tube can be positioned and fixed at a predetermined position on the wire harness by a simple operation, and the cost of parts does not increase, and it can be applied to wire harnesses of any thickness and has versatility. It is intended to provide a clamp for tubes.

[0005]

A clamp for a corrugated tube for a wire harness according to the present invention for achieving the above object is a corrugate for a wire harness for positioning and fixing a corrugated tube through which a wire harness is inserted at a predetermined position on the harness. In a tube clamp, a tube fixing portion fitted to an outer peripheral surface of an end portion of the corrugated tube, and a harness fixing portion capable of tightening the wire harness exposed from the tube end portion, the harness fixing portion being the tube It is characterized in that it is provided integrally with the fixed portion.

Further, according to the above construction, the harness fixing portion is connected to and integrated with the tube fixing portion.
The corrugated tube through which the wire harness is inserted can be positioned and fixed at a predetermined position on the harness simply by attaching the tube fixing portion to the outer peripheral surface of the corrugated tube and winding the harness fixing portion around the wire harness and tightening the wire harness.

According to a second aspect of the present invention, there is provided a wire harness corrugated tube clamp comprising two half-divided members in which the tube fixing portion and the harness fixing portion are openably and closably connected to each other through thin hinge portions, and The tube fixing portion is provided with an engaging means for connecting the half-divided members to each other in a locked state, while the harness fixing portion is provided on one of opposite edges of the half-divided member and is a band portion wound around the outer periphery of the wire harness. It is characterized by comprising a band clip for inserting and fixing the tip into a band lock portion provided on the other opposing edge of the half-split member.

Further, according to the above construction, the harness fixing portion is provided with the band clip for inserting and fixing the tip of the band portion wound around the outer periphery of the wire harness into the band lock portion. Even if the wire harness is thin, the wire harness can be fixed by winding the band part.

The clamp of the corrugated tube for a wire harness according to claim 3 is formed on the inner wall surface of the half member of the tube fixing portion and on the outer peripheral surface of the tube when the half members are locked together. It is characterized in that a rib or a locking groove that fits in the annular recess or protrusion is formed.

Further, according to the above construction, the tube fixing portion is formed with a rib or a locking groove which fits into the annular recess or projection of the corrugated tube, and for example the rib is fitted into the recess. It is possible to firmly prevent the clamp from separating from the corrugated tube and the lateral displacement of the clamp on the tube in the axial direction.

According to a fourth aspect of the present invention, there is provided a wire harness corrugated tube clamp, wherein the harness is axially attached to the inner wall surface of the half-divided member of the harness fixing portion when the wire clip is tightened by the band clip. It is characterized in that a plurality of harness pressing protrusions that are bent are formed to project.

Further, according to the above construction, since the harness fixing portion is formed with the plurality of harness pressing projections for bending the wire harness in a protruding state, the harness fixing portion functions as a band clip for tightening the wire harness, and Movement can be prevented. In other words, the clamp prevents displacement of the wire harness in the axial direction, so that the corrugated tube can be positioned and fixed at a predetermined position on the harness.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a clamp for a corrugated tube for a wire harness according to the present invention will be described in detail below with reference to the accompanying drawings. 1 and 2 show an embodiment of a clamp for a corrugated tube for a wire harness according to the present invention. FIG. 1 is a perspective view of the clamp before use, and FIG. 2 is a clamp in the state of FIG. FIG. A clamp (hereinafter, simply referred to as a clamp) 1 for a corrugated tube for a wire harness according to the present embodiment is formed of a synthetic resin material and has an end of a corrugated tube 30 (both refer to FIG. 3) through which a wire harness W / H is inserted. The corrugated tube 30 can be positioned and fixed at a predetermined position on the wire harness W / H by mounting it on the outer peripheral surface of the part. The corrugated tube 30 has the same structure as the conventional one as shown in FIG.
An annular irregular portion is provided in a bellows shape continuous in the longitudinal direction, and the slit 32 formed extending in the longitudinal direction can be spread to be mounted on the wire harness W / H.

The clamp 1 is integrally connected to the tube fixing portion 2 fitted to the outer peripheral surface of the tube 30 and the tube fixing portion 2 and tightens the wire harness W / H exposed from the end portion of the tube 30. It is the structure provided with the harness fixing | fixed part 3 bound in a state.

Tube fixing part 2 and harness fixing part 3
Is a thin-walled hinge portion 2 provided along the axial direction of the wire harness W / H when mounted on the wire harness W / H.
It is formed of arcuate half-divided members 24 and 34 which are openably and closably connected via 2, 32.

The tube fixing portion 2 includes half members 24, 24.
The engaging claws 26 and the engaging holes 27 formed on the opposing edges of the half members 24, 24 are provided as engaging means for attaching the two to the wire harness W / H and connecting them in a locked state.

On the inner wall surfaces of the half members 24, 24 of the tube fixing portion 2, when the tube fixing portion 2 is connected in a locked state, an annular concave portion 32 formed on the outer peripheral surface of the corrugated tube 30 (see FIG. One rib 28 which is fitted into the protrusion 28 is formed to project. The recess 32 and the rib 2
Since the relationship of 8 is relative, the tube fixing part 2
The annular projection 3 of the corrugated tube 30 on the inner wall surface of the
It may have a configuration in which a locking groove that fits in 4 is formed.

The harness fixing portion 3 is a wire harness W /
In order to bring H into a tightened state, a band portion 36 that extends from one opposing edge of the half-split member 34 and is wound around the outer periphery of the wire harness 30 and a band portion 36 that is formed on the other opposing edge of the half-split member 34. A band clip 40 including a band lock portion 38 into which the tip is inserted and fixed is provided.

The harness fixing portion 3 is provided with the band portion 36 so that the amount of deformation of the flexible band portion 36 can be increased to sufficiently cope with, for example, tightening of a wire harness W / H having a small diameter. A slit 42 is formed between the extended half-split member 34 and the tube fixing portion 2 adjacent to the half-split member 34 to separate them from each other. That is, the band portion 36 is the half member 3 in which the band portion 36 is extended.
In cooperation with 4, it is possible to largely deform around the hinge portion 32.

On the outer surface of the band portion 36 wound around the wire harness 30, there is provided a locking groove 37 having a sawtooth cross section which is continuous from the vicinity of the front end to the base end side. On the other hand, in the band lock portion 38, a tongue-shaped member (not shown) that is flexibly provided and that engages with the engagement groove 37 is provided inside the insertion hole 39 into which the band portion 36 is inserted.

On the inner wall surfaces of the half members 34, 34 of the harness fixing portion 3, a plurality (three in this example) are arranged orthogonal to the axial direction of the wire harness W / H and displaced in the axial direction. The harness pressing protrusion 44 is formed to project.
These harness pressing protrusions 44 are attached to the band clip 40.
When the wire harness W / H is tightened by the
H is bent along its axial direction.

Next, with reference to FIGS. 3 and 4, the mounting method and operation of the clamp 1 will be described. Clamp 1
First, as shown in Fig. 3 (a), open the
The end portion of the corrugated tube 30 is arranged on the half member 24 of the tube fixing portion 2. And the half member 2
The ribs 4 and 24 are fitted into the annular recess 32 of the corrugated tube 30 so as to cover the other half member 24 which is hinge-connected, and then the locking claw 26 is inserted into the locking hole 27. To connect the half members 24, 24 to each other in a locked state. Thereby, the clamp 1 is attached to the outer peripheral surface of the end portion of the corrugated tube 30. Moreover, the clamp 1 is separated from the corrugated tube 30 and the clamp 1
Lateral deviation in the axial direction on the tube is firmly prevented.

After mounting the clamp 1, as shown in FIG. 3B, the wire harness W / H is inserted into the corrugated tube 30 to be exposed from the tube end. Next, as shown in FIG. 3C, the harness fixing portion 3 winds the band portion 36 of the band clip 40 around the outer circumference of the wire harness W / H.
With the tip of the wire harness inserted into the insertion hole 39 of the band lock portion 38, the wire harness W / H is tightened and fixed.

As a result, the clamp 1 clamps the wire harness W / H into a bent state, as shown in FIG. 4, so that the movement of the wire harness W / H (left and right in the plane of the drawing) can be prevented. . In other words, since the clamp 1 is prevented from being displaced on the wire harness W / H, the corrugated tube 30 connected to the clamp 1 is also prevented from moving, and is positioned and fixed at a predetermined position on the harness. To be done.

In the above-described embodiment, the clamp can only position and fix the corrugated tube at a predetermined position on the wire harness. However, an anchor is provided on the outer peripheral surface of the clamp so that the anchor is attached to a panel or the like. It is also possible to fix the corrugated tube in a state in which the wire harness is inserted and held to the mounted body by inserting and locking the locking hole formed in the mounted body.

[0026]

As described above, according to the clamp of the corrugated tube for a wire harness of the present invention, the tube fixing portion fitted to the outer peripheral surface of the end portion of the corrugated tube and the harness fixing portion capable of tightening the wire harness. Since it is provided in an integrated structure with and, the tube fixing part is attached to the corrugated tube, while the harness fixing part is wrapped around the wire harness and tightened in a tight state. It can be positioned and fixed at a predetermined position above. Therefore, the tube fixing work can be performed more easily and the work efficiency can be improved as compared with the case where the corrugate tube is wound around the conventional corrugated tube and the corrugated tube is fixed at a predetermined position on the harness.

Further, according to the second aspect of the present invention, the harness fixing portion is provided with the band clip capable of tightening and fixing the wire harness. Therefore, even if the wire harness has a small outer diameter, the band portion is formed. The wire harness can be fixed by winding. Therefore, the work efficiency can be improved and the versatility of the clamp can be achieved at the same time.

According to the third aspect of the present invention, since the tube fixing portion is provided with the rib or the locking groove that fits into the annular recess or protrusion of the corrugated tube, for example, the rib is fitted into the recess. By doing so, it is possible to firmly prevent the clamp from deviating from the corrugated tube and the lateral displacement of the clamp on the tube in the axial direction.

Further, according to the structure of claim 4, since the harness fixing portion is formed with a plurality of ribs projectingly configured to bend the wire harness, the movement of the wire harness can be prevented. In other words, the clamp can prevent the positional displacement of the wire harness in the axial direction, and can position and fix the corrugated tube at a predetermined position on the harness.

[Brief description of drawings]

FIG. 1 is a perspective view of a clamp of a corrugated tube for a wire harness according to the present invention before use.

FIG. 2 is a plan view in the state of FIG.

3A and 3B are diagrams illustrating a procedure for attaching a clamp, wherein FIG. 3A is a diagram showing a state before attachment, FIG. 3B is a state during attachment, and FIG.

FIG. 4 is a partial cross-sectional view showing a state where the clamp is completely attached.

FIG. 5 is a perspective view showing a terminal processing unit of a corrugated tube for a wire harness according to a conventional method.

FIG. 6 is a diagram showing another conventional example.

[Explanation of symbols]

1 Clamp (clamp) for corrugated tube for wire harness 2 Tube fixing part 3 Harness fixing parts 22, 32 Hinge parts 24, 34 Half member 26 Locking claw (engaging means) 27 Locking hole (engaging means) 28 Rib 30 Corrugated tube 36 Hand part 38 Band lock part 40 Band clip 44 Harness pressing protrusion W / H Wire harness

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H02G 3/04 H02G 3/26 E 3/38 3/28 FF term (reference) 3H023 AA04 AB01 AC31 AD08 AD54 3J022 DA12 EA42 EB14 EC14 EC22 FA05 FB12 GA03 GA24 GB45 GB75 GB77 5G357 DA06 DB03 DC12 DD01 DD05 DD10 DG01 5G363 AA16 BA02 DA16 DC02

Claims (4)

[Claims] 1. A clamp for a corrugated tube for a wire harness, which positions and fixes a corrugated tube inserted through a wire harness at a predetermined position on the harness, comprising: a tube fixing portion fitted to an outer peripheral surface of an end portion of the corrugated tube; and a tube end. And a harness fixing portion for tightening the wire harness exposed from the portion, wherein the harness fixing portion is continuous with and integrated with the tube fixing portion. . 2. The tube fixing portion and the harness fixing portion are formed by two half-divided members which are openably and closably connected to each other via thin hinges, and the tube fixing portion locks the half-divided members. On the other hand, the harness fixing portion is provided at one of opposite edges of the half-divided member, and the tip of the band portion wound around the outer periphery of the wire harness is provided at the other opposite edge of the half-divided member. The clamp for a corrugated tube for a wire harness according to claim 1, further comprising a band clip inserted into and fixed to the band lock portion. 3. A rib that fits into an annular concave portion or convex portion formed on the outer peripheral surface of the tube when the half members are locked to each other on the inner wall surface of the half member of the tube fixing portion. The corrugated tube clamp for a wire harness according to claim 2, wherein a locking groove is formed. 4. A plurality of harness pressing protrusions are provided on an inner wall surface of the half-divided member of the harness fixing portion to bend the harness along the axial direction when the wire harness is tightened by the band clip. The clamp for a corrugated tube for a wire harness according to claim 2, wherein the clamp is formed.