JPH08275343A - Clip structure for distributing harness wiring - Google Patents

Abstract

PURPOSE: To provide a clip structure capable of reducing the number of parts and improve the efficiency of the work for distributing harnesses wiring, while securing the degree of freedom of the layout of the harnesses. CONSTITUTION: A clip structure fixed in the position under a grommet mounted engage-wise on a dash lower for separating the inside of a compartment from an engine room which binds harnesses U-turn-wise. A clip 11 is provided with a long-plate form base portion 12 fastened to a stud bolt 16 of a sidewall 1b of the dash lower and a fold forming portion 13 fixed on the upper portion of the base portion 12 which using a fastening piece 19 and a lower end portion 12b of the base portion 12 as guides, winds the harness U-turn shape around a cylindrical portion 18 and forms the fold of the harness. Also, the clip 11 has on an upper end portion 12c of the base portion 12 a binding band 14 for binding the double bundle of the harnesses folded U-turn shape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clip structure for holding a harness arranged in, for example, an engine room and a vehicle compartment and positioning and fixing the harness in a predetermined position.

[0002]

2. Description of the Related Art As is well known, a plurality of converged harnesses are arranged between an engine room and a vehicle compartment of a vehicle, and it is necessary to arrange the harnesses efficiently in terms of space and work. Various proposals have been made in the past. As an example, there is a harness wiring structure described in Japanese Patent Application No. 4-8470 (Japanese Utility Model Application No. 5-62133) filed earlier by the present applicant.

That is, as shown in FIG. 7, a cowl box 3 composed of a dash upper 2 and the like is provided at an upper end portion of a dash lower 1 which separates a vehicle compartment R and an engine room E. And cowl box 3
A plurality of converged harnesses 4 are routed via.

This harness 4 has one end housed in a flexible tube 5 and is fixed to the lower surface of the dash upper 2 by a clip 7, and the hanging portion A on the other end side hung from the clip 7 is hard. It is inserted into the tube 8.

The lower end of the hard tube 8 is fixed to the tail 10a of the grommet 10 with an adhesive tape 9, and a drain port 8a is formed on the lower end of the hanging portion A where the lower end is exposed. . Further, in this hard tube 8, the hanging portion A is bent as the grommet 10 fitted in the assembly hole 1a of the dash lower 1 is rotated, and the bending of the hanging portion A causes the draining portion 4a of the harness 4 to move. When it is displaced upward, the drainage part 4a is changed to the grommet 10.
It has a length L capable of restricting the bending of the hanging portion A over a range below the height of the insertion hole 10b. Thereby, even if the grommet 10 is carelessly rotated and the flexible tube 5 is bent, the drainage part 4a is inserted into the insertion hole 10a.
It is designed not to be displaced above the height of b.

[0006]

However, in the above-mentioned conventional harness wiring structure, the rigid tube 8 for restricting the bending is disposed in the hanging portion A of the harness 4 for positioning, and Since the lower end of 8 is fixed to the grommet 10 with the adhesive tape 9,
The degree of freedom of layout is restricted due to the free bending of the harness 4. As a result, efficient wiring of the harness 4 according to the shape in the engine room E cannot be obtained.

Further, in order to position the water draining portion 4a downward, the upper end of the harness 4 must be fixed to the dash upper 2 by using the clip 7, and the water draining portion 4a is positioned downward. The hard tube 8 and the like are required, so that the number of parts is increased, and the manufacturing work efficiency is lowered and the cost is increased.

In addition, when arranging, the grommet 10 must be rotated each time to align the harness 4 and the like, and the hard tube 8 must be attached to the harness 4, which complicates the arranging work. Become.

Further, the exposed harness 4 of the hanging portion A
Since the drainage part 4a is not bound, variations easily occur.

The present invention has been made in view of such conventional problems, and has a clip structure capable of reducing the number of parts and improving the efficiency of wiring work while ensuring a free layout of a harness. Is intended to provide.

[0011]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a clip structure for positioning and fixing a lowermost portion of a harness, which is bent in a U-turn shape, to a panel. The clip is a base that is fixed to the panel, and a bending-molding part that is fixed to the upper part of the base and bends a plurality of converged harnesses into a U-turn shape.
A tubular shape provided with an end portion of the base portion and a binding belt for binding a double bundle of the harness bent into the U-turn shape, and the bending portion being wound around a drainage portion of the harness. And a locking piece for holding the water draining portion with the lower end portion of the base portion.

[0012]

In order to route the harness, first, the water draining portion of the harness is wound around the bend forming portion of the clip and bent in a U-turn shape, and the folded double bundle is formed in parallel. Bundling various harness bundles together with a binding belt. After that, the base portion of the clip is fixed to the vehicle body panel, for example, below the grommet mounting position of the dash lower.
Therefore, since the lower end portion of the harness is positioned and fixed to the vehicle body panel by the clip, the drainage portion can be formed here, and the conventional hard tube or the like becomes unnecessary. Therefore, the harness can be freely bent, and the degree of freedom in layout is improved.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of a clip structure of the present invention applied to a harness arranged between a vehicle compartment and an engine compartment of a vehicle as in the conventional case.

That is, the clip 11 is a plate-shaped base portion 12 fixed to the side wall 1b of the dash lower 1 which is a vehicle body panel, and a bending molding integrally fixed to a substantially central position of an upper surface 12a of the base portion 12. It is composed of a portion 13 and a band-shaped binding band 14 provided on the upper end portion of the base portion 12.

On the other hand, the dash lower 1 is provided with an assembling hole 15a into which the grommet 15 is fitted at a predetermined lower position, and the side wall 1b has a shaft portion at a position below the assembling hole 15a. Is fixed to a stud bolt 16 protruding from the engine room. The grommet 15 has a funnel shape, and an insertion hole 15b through which the harness 4 is inserted is formed in the inner central axial direction.

The base 12 of the clip 11 is
As shown in FIG. 1, a synthetic resin material is formed in a rectangular shape that is long in the vertical direction, and a first press-fitting hole 17a into which the stud bolt 16 is press-fitted is formed at a substantially central position.

The bending portion 13 is made of a synthetic resin material and is formed into a substantially L shape, and the lower end portion thereof is the upper surface 1 of the base portion 12.
The cylindrical portion 18 is integrally fixed to the 2a, and the locking piece 19 is integrally provided on the upper end of the cylindrical portion 18. The tubular portion 18 is formed in a substantially elliptical cross section along the longitudinal direction of the base portion 12, and the second press-fitting hole 17b is continuous with the first press-fitting hole 17a of the base portion 12 in the inner axial direction. Are formed through.

The locking piece 19 has a substantially rectangular plate shape, the base end of which is integrally connected to the upper end edge of the tubular portion 18, and the front end 19a is parallel to the lower end 12b of the base 12. And the length thereof is set to be substantially the same as that of the lower end portion 12b. Therefore, the locking piece 19 and the lower end portion 12b of the base portion hold the drainage portion 4a of the harness wound around the tubular portion 18 inside.

The binding band 14 is made of a flexible resin material and formed into a substantially circular ring shape, and one end portion 14a has an upper end portion 1 of the base portion 12.
2c is fixed to one side, and the other end 14b is free.
Locking hole 2 formed by penetrating in the width direction inside the upper end 12c
The upper end portion 12c is inserted into 0 from the other side portion side. In addition, a plurality of locking claws 14c are formed on the outer surface of the binding band 14 to prevent the locking band 14 from coming off.

The harness 4 is covered with flexible tubes 21 and 22 other than the water draining portion 4a which is bent into a U-shape by the clip 11, and is provided on one side of the dash upper side. The flexible tube 21 has a drain port 21a at the lower end.

In the present embodiment having the above-described structure, when the harness 4 is routed, the other flexible tube 22 is previously inserted into the insertion hole 15b of the grommet 15 and exposed as shown in FIGS. The water draining portion 4a is wound around the tubular portion 18 of the clip 11 and bent in a U-turn shape.

Subsequently, the root portions of the parallel water draining portions 4a which are folded into a double bundle are wound around the binding band 14 and tightened. That is, the binding band 14 is wound while pressing the double bundle draining portion 4a against the upper surface 12a of the base portion 12, and at the same time, the other end portion 14b is engaged from one end in the locking hole 20 and the other The other end 14 protruding from the end
If b is pulled hard, the root of the drainage part 4a will be the base 12
It can be firmly tightened and fixed on the upper surface 12a.
As a result, the wiring unit U of the harness 4 before being assembled can be manufactured in advance. Therefore, the routing unit U can be transported as a unit, and the transport workability is improved.

Then, in the assembling step, the wiring unit U is assembled into the engine room E from the inside of the vehicle compartment R by the assembling hole 15a.
, And then the worker pulls in the grommet 15 from the engine room E side to remove the assembly hole 15
It is fitted and fixed to the hole edge of a.

Further, the clip 11 is attached to the stud bolt 1
Fix at 6. That is, as shown in FIG. 3, if the first and second press-fitting holes 17a and 17b of the base portion 12 and the tubular portion 18 are pushed into the shaft portion of the stud bolt 16, the clip 11 is securely positioned below the grommet 15 of the side wall 1b. And it is firmly fixed. Therefore, in the harness 4, as shown in FIG. 2, the drainage portion 4a can be arranged and fixed at a position lower than the insertion hole 15b of the grommet 15.

After that, one end side (the flexible tube 21 side) of the harness 4 can be routed while being freely bent and deformed in the engine room E.

As described above, in this embodiment, the clip 11 is used.
Since the draining portion 4a of the harness 4 bent and held in a U-turn shape can be reliably positioned and fixed to a position below the insertion hole 15b of the grommet 15 without using a hard tube or the like unlike the conventional case. The one end side of the harness 4 can be freely bent and deformed. Therefore, the degree of freedom of layout is improved.

During installation, the clip 11 is simply attached to the stud bolt 1 without rotating the grommet 15.
Since the harness 4 can be aligned, that is, the harness 4 can be arranged at a position below the water draining portion 4a and the grommet insertion hole 15b by simply fixing the harness 4 to the harness 6, the wiring work becomes easy.

Moreover, as described above, the conventional hard tube or the clip for fixing to the dash upper can be eliminated, so that the number of parts can be reduced, the manufacturing work efficiency can be improved, and the cost can be reduced.

Further, the drainage portion 4a is clipped to the clip 11
Since it is bound by the binding band 14, the conventional adhesive tape is not required, and the binding strength is improved and the reliability is increased.

Further, when the harness 4 is wound around the tubular portion 18 of the clip 11, the lower end portion 12b of the base portion 12 and the locking piece 19 function as a positioning guide, which facilitates the winding work and drains water. It is possible to prevent variations in the portion 4a. In particular, when the locking piece 19 of the clip 11 is formed in an expanded shape as shown in FIG. 6, the work of winding the harness 4 around the tubular portion 18 becomes easier.

4 and 5 show the case where the wiring direction of the harness 4 is changed, and the stud bolt 16 is attached to the dash lower 1.
Fix the grommet 15 in the lower position, and clip 1 here.
1 is fixed. With this configuration, the harness 4 can be arranged perpendicularly to the axial direction of the grommet 15.

The present invention is not limited to the construction of the above-mentioned embodiment, and an appropriate number of steps may be used for fixing the clip 11 to the panel. Further, the places to which the harness wiring is applied are not limited to the engine room and the vehicle compartment.

[0034]

As described above, according to the present invention,
The clip allows the bent portion of the harness to be positioned and fixed at a predetermined position on the panel without using a hard tube or adhesive tape as in the past, so that the harness can be flexibly deformed and the flexibility of layout can be secured. Is improved.

Further, since the conventional hard tube or the clip for positioning the upper part of the harness can be eliminated, the number of parts can be reduced, the manufacturing work efficiency can be improved, and the cost can be reduced.

Further, the positioning of the harness is not performed by rotating the grommet as in the prior art, but the positioning is completed simply by fixing the clip, so that the routing work efficiency can be improved.

Moreover, since the wiring direction of the harness can be changed by changing the fixing position of the clip, the wiring workability is also improved in this respect.

Further, since the double bundle of the harness bent in the U-turn shape can be firmly tightened with the binding band, the harness is prevented from coming off and the reliability is improved as compared with the case of using the conventional adhesive tape. Becomes higher.

Further, since the harness can be securely bound by the base portion of the clip and the bending portion in addition to the binding band, it is possible to reliably prevent the occurrence of variations.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a clip structure of the present invention.

FIG. 2 is a schematic view showing a state in which a harness is held by the clip of this embodiment.

FIG. 3 is an explanatory view showing a state in which the clip of this embodiment is fixed to a stud bolt.

FIG. 4 is a schematic view showing a state in which the wiring direction of the harness is changed.

FIG. 5 is an explanatory view showing a state where the clip is fixed to a stud bolt.

FIG. 6 is a side view showing another example of the clip.

FIG. 7 is a cross-sectional view showing a conventional harness wiring structure.

[Explanation of symbols]

 1 Dash lower (panel) 1b Side wall (panel) 4 Harness 4a Draining part 11 Clip 12 Base part 13 Bending forming part 14 Binding band

Claims (1)

[Claims] 1. A clip structure for positioning and fixing a lowermost position of a harness, which is bent in a U-turn shape, to a panel, wherein the clip includes a base fixed to the panel and an upper part of the base. A bend forming part for bending and forming a plurality of fixed and converged harnesses in a U-turn shape, and a double bundle of harnesses formed at the end of the base part and bent in the U-turn shape. And a binding belt that binds the harness, and the bending portion is composed of a tubular portion around which the drainage portion of the harness is wound, and a locking piece that holds the drainage portion at the lower end portion of the base portion. A clip structure for harness wiring, which is characterized in that