JP3230820B2 - Harness wiring method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring method for a harness.

[0002]

2. Description of the Related Art Generally, a rear wiper,
Electric equipment such as a high-mount stop lamp is provided with electric power from the vehicle interior side through a harness wired through a through-hole formed in the vehicle body panel, to an electric device disposed outside the vehicle interior. Usually, a grommet holding the harness is mounted in a through hole formed in the vehicle body panel, so that the harness is passed from the outside of the vehicle body panel to the vehicle interior. Such a conventional grommet is generally formed in a substantially cylindrical shape, and a harness insertion hole is formed in the grommet so as to penetrate the grommet in the axial direction. And
After passing the harness through the harness insertion hole, the grommet holding the harness is attached to the through hole from the outside of the body panel, thereby passing the harness from the outside of the body panel to the vehicle interior side ( For example,
-124820).

[0003]

However, in the conventional wiring method of a harness using a grommet as disclosed in Japanese Utility Model Laid-Open No. 60-124820, the grommet protrudes considerably into the vehicle compartment. The bundle-shaped harness guided into the vehicle interior through the harness insertion hole of the grommet enters the interior of the vehicle interior further from the front end of the grommet, and is wired in a direction along the vehicle body panel while bending relatively slowly. You.

In general, a trim or a top sealing is attached to the inside of the vehicle body panel in close proximity to the body panel. However, according to the above-described conventional wiring method of a harness using a grommet, the harness is located near the grommet and inside the vehicle cabin. Since the harness and the trim interfere with each other considerably, there is a problem that the trim is deformed so as to swell toward the interior of the vehicle compartment, or a hitting sound is generated during driving.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. In a motor vehicle in which a harness is passed from the outside of a vehicle body panel to the interior of a vehicle using a grommet, a harness and a trim are provided. It is an object of the present invention to provide a wiring method for a harness, which can prevent interference between the harness and the trim, and can prevent the deformation of the trim and the generation of a tapping sound.

[0006]

In order to achieve the above object, the present invention provides a through hole in a vehicle body panel, passes a harness through a harness insertion hole formed in a grommet, and penetrates a grommet with this harness. In the wiring method of a harness in which the harness is passed from the outside of the vehicle body panel to the inside of the vehicle cabin by being attached to the hole, a portion disposed around the grommet body portion in the harness insertion hole formed in the grommet body portion. After passing the harness with the bundle separated, the harness assembly is formed by attaching the grommet cover member to the grommet body to guide the harness sideways outside the grommet while bending the harness almost at a right angle at the part where the bundle is separated and forming the harness assembly By attaching this harness assembly to a through hole formed in the vehicle body panel, the harness can be almost Is extended along the body panel, it provides a method of wiring harness, characterized in that to attach the trim to the following vehicle interior.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below.
As shown in FIG. 4, a rear wiper 3 is provided in a window 2 of a back door 1 of a vehicle WD.
Are driven by a wiper motor 4. And the wiper motor 4 and other electric devices outside the vehicle compartment.
(For example, a high-mount stop lamp) is supplied with power from a power supply device (not shown) on the vehicle body side via a harness 5. Here, harness 5
Are wired in the back door frame 6 on the back door 1 side, and are wired in the body panel 7 (pillar) on the vehicle body side.

Since the harness 5 is exposed to the outside at the portion where it moves from the back door frame 6 to the vehicle body panel 7, the harness 5 is enlarged as shown in FIG. 5 (see FIG. 4).
Are protected by a protection member R. Note that the opening and closing of the back door 1 (see FIG. 4) changes the distance between the back door frame 6 and the vehicle body panel 7. The protective member R has a flexible structure so as to absorb the increase or decrease in the distance. ing. The protective member R includes a frame-side cap 8 attached to the back door frame 6 side.
And a vehicle body side cap 9 attached to the vehicle body panel 7 side
And a protective tube 10 for connecting these two caps 8, 9 with each other.

The harness 5 (see FIG. 4) is passed from the outside of the vehicle body panel 7 to a vehicle interior through a through hole described later. As shown in FIGS. 1 to 3, the vehicle body panel 7 (pillar) includes an outer pillar 7a and an inner pillar 7b.
It is composed of three members. A grommet G including a grommet body 12 and a grommet cover member 13 is provided to pass the harness 5 from outside the vehicle body panel 7 to the vehicle interior. Here, the grommet body 12 is fitted into the vehicle body side cap 9, and the grommet cover member 13 is connected to the harness insertion hole 1 of the grommet body 12.
2a. The grommet G is mounted and fixed to the outer pillar 7a (vehicle body panel 7) by fitting the grommet cover member 13 into the outer pillar through hole 15. The lower end of the grommet cover member 13 passes through the inner pillar through hole 16 provided in the inner pillar 7b and projects slightly below the inner pillar 7b. Also, slightly below the inner pillar 7b (below the lower end of the grommet cover member 13).
, A trim 14 is arranged.

Here, the bundled harness 5 is basically
The bundle is scattered slightly below the vehicle body cap 9. Then, the harness 5 extending downward in a separated state.
Is in contact with the bottom surface 13b of the grommet cover member 13 and sharply bends by about 90 °, and in a state of being separated side by side,
It extends in the spreading direction of the bottom surface 13b, that is, in the direction along the lower surface of the inner pillar 7b. As described above, since the harness 5 is wired along the inner pillar 7b in the vehicle cabin at a position close to the inner pillar 7b, the harness 5 and the trim 14 are arranged regardless of the arrangement of the trim 14 close to the inner pillar 7b. Interference does not occur.

The procedure for wiring the harness 5 to the vehicle body will be described below. (1) The bundled harness 5 is separated by a predetermined length in a portion below the vehicle body side cap 9 to make it bend easily. (2) After passing the harness 5 through the harness insertion hole 12a of the grommet main body 12, the grommet main body 12 is fitted into the vehicle body side cap 9. (3) The grommet cover member 13 is inserted into the harness insertion hole 12a from below, and the lower surface of the ear portion 13a of the grommet cover member 13 is fitted to the flange portion 12b of the grommet body portion 12.
Grommet cover member 1
3 is fitted into the grommet body 12. At this time, since the harness 5 is dispersed at a predetermined position, the harness 5
Is curved almost 90 degrees immediately before the bottom surface 13b of the grommet cover member 13, and extends in the direction of the spread surface of the bottom surface 13b in a state where the grommet cover member 13 is separated and arranged side by side. Thus, a harness assembly including the harness 5, the vehicle body side cap 9, the grommet body 12, and the grommet cover member 13 is substantially formed.

(4) The grommet cover member 13 is fitted into the outer pillar through hole 15, and the harness assembly is mounted on the vehicle body panel 7. At this time, the grommet cover member 13
After passing through the inner pillar through hole 16, the inner pillar 7
Projects slightly below the lower surface of b. As described above, the harnesses 5 that are separated and arranged side by side are connected to the bottom surface 1.
Since the harness 5 extends in the direction of the expanding surface of the harness assembly 3b, the harness 5 extends substantially along the lower surface of the inner pillar 7b after leaving the grommet G after the harness assembly is mounted. Therefore, the harness 5 and the trim 14 do not interfere with each other, and the swelling deformation of the trim 14 and generation of a tapping sound are prevented. Further, the trim 14 can be arranged close to the inner pillar 7b.

[0013]

According to the present invention, in the cabin, in the vicinity of the grommet, the harness extends along the bottom surface of the vehicle body panel in a side-by-side state in which the harness is scattered, so that the interference between the harness and the trim or top sealing. Is prevented, and deformation of the trim or the top sealing and occurrence of a tapping sound are prevented.

[Brief description of the drawings]

FIG. 1 is an elevational sectional view of a wiring structure of a harness according to an embodiment of the present invention, as seen from the front side of an automobile.

FIG. 2 is an explanatory plan view of a wiring structure of the harness shown in FIG. 1;

3 is an elevational cross-sectional view of the wiring structure of the harness shown in FIG. 1, as viewed from the side of the automobile.

FIG. 4 is an explanatory perspective view of a rear portion of the automobile having the wiring structure of the harness shown in FIG. 1;

FIG. 5 is an enlarged perspective explanatory view of a harness protection member of the automobile shown in FIG. 4;

[Explanation of symbols]

 WD: Automobile G: Grommet R: Protective member 5: Harness 7: Body panel 7a: Outer pillar 7b: Inner pillar 9: Body side cap 12: Grommet body 13: Grommet cover member 14: Trim 15: Outer pillar through hole 16: Inner pillar penetration Hole

Claims (1)

(57) [Claims] 1. A harness is passed through a harness insertion hole formed in a grommet while a through hole is provided in a vehicle body panel.
In the wiring method of a harness in which the grommet with the harness is attached to the through hole by passing the harness from the outside of the vehicle body panel to the inside of the vehicle interior, the grommet is inserted into the harness insertion hole formed in the grommet main body. After passing through the harness where the bundle is separated in the part arranged around the main body, the grommet cover member that guides the harness sideways outside the grommet side by side while bending the harness at almost the right angle in the part where the bundle is separated is attached to the grommet main body A harness assembly is formed by attaching the harness assembly to a through hole formed in the vehicle body panel, thereby extending the harness substantially along the vehicle body panel on the vehicle interior side, and then trimming the vehicle interior side. A wiring method for a harness, wherein the wiring is attached.