JP2001046176A - Wire harness protection structure of vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent damage to the harnesses of a heater and a sensor drawn outside of a through hole bored in a panel frame. SOLUTION: A projection 10 which projects outside of a through hole 20 in a panel frame 2 is provided on a seat pad 1 made of foam supported against the panel frame 2, and a wire harness 3 is passed through the projection 10 to prevent the wire harness 3 from making contact with the edge of the through hole 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness protection structure for a vehicle seat (seat) having a wire harness such as a sensor / heater.

[0002]

2. Description of the Related Art As shown in FIG. 4, a sensor for detecting the presence of a occupant and a vehicle seat having a built-in heater for heating include a sensor and a heater (30) mounted on a foam seat pad (1). Has been laid. Then, the wire harness (3) such as a sensor is pulled out from the inside of the seat pad (1) to the outside from the bottom side, and the seat pad (1)
Is drawn out of the sheet through a through hole (20) provided in a panel-made frame (2) for supporting the sheet.

Since the edge of the through hole (20) provided in the frame (2) has an acute angle, the wire harness (3) drawn out of the through hole (20) is not connected to the through hole (20). There is a risk of breakage and cutting due to contact with the edge of the hole.

In order to eliminate such a defect, as shown in FIG. 5, the through hole (20) of the wire harness (3) is used.
The wire harness (3) is protected by attaching a resin protector (5) to a portion corresponding to the edge of (1).

As shown in FIG. 6, a frame (2)
The edge of the through hole (20) is curled (21).

Further, the drawback is solved by pulling out the wire harness (3) from the outer peripheral end of the frame (2) without pulling out the wire harness (3) from the through hole (20). There is also.

[0007]

When the protector (5) is mounted on the wire harness (3), a general-purpose protector (5) must be manufactured and mounted on the wire harness (3). There is a defect that requires installation man-hours.

In the case of performing the curling process (21) on the frame (2), a press die for curling is required, or man-hours are required for manufacturing the frame (2).

Further, in the case where the wire harness (3) is pulled out from the outer peripheral edge of the frame (2), the frame (2) and the wire harness (3) do not need to be separately formed and processed separately. The harness (3) is exposed to the outside from the outer periphery of the sheet, the appearance quality of the sheet is impaired, the length of the wire harness increases, and the cost increases,
Man-hours are required for the covering operation of the skin covering the seat pad (1).

Therefore, an object of the present invention is to eliminate the disadvantages of the conventional product as described above.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the gist of the present invention is to provide a structure in which the seat pad is provided with a projection protruding from the through hole of the frame to the outside of the frame and a surface extending from the sheet surface to the back surface. A slit that penetrates is provided integrally, and the wire harness is inserted into the projecting portion, or the seat pad is divided into a main body and a sensor attaching portion, and the wire harness is inserted from the mating portion to protect the wire harness. I do.

[0012] With the above configuration, the convex portion of the seat pad serves as a protection member for the wire harness, and the contact of the wire harness with the edge can be prevented.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described.
A description will be given based on FIGS. In the figure, (1) is a molded foam seat pad, (2) is a frame made of a metal panel, (3) is a sensor or heater (30) wire harness, and (4) is a seat pad (1). ) Are shown respectively.

At the time of molding, the seat pad (1) has two parts, the main body (1A) and the sensor attaching portion (1B).
It is formed by division.

After forming the main body (1A) and the sensor attaching portion (1B) of the seat pad (1), a sensor or a heater (30) is attached to the sensor attaching portion (1B), and the wire harness (3) has a convex portion. As shown in (10), fit the sensor attachment part (1B) into the main body (1A).

In the drawing, (33) indicates a connector.

The through hole (2) provided in the frame (2)
0) is obtained by stamping and forming a panel, and is not subjected to curling or the like.

The shape of the convex portion (10) may be any shape such as a conical shape, a trapezoidal shape, or a cylindrical shape which is thin in the direction of the tip.

Thus, as shown in FIG. 2, the projection (10) integral with the seat pad (1) protrudes from the through hole (20) of the frame (2) to the outside, and is formed inside the projection (10). Through the wire harness (3), the wire harness (3) does not come into contact with the edge of the through hole (20) provided in the frame (2).

Then, the convex portion (10) of the seat pad (1) is inserted into the through hole (20) of the frame (2) together with the wire harness (3), and is projected to the outside, so that the seat pad (1) is projected. ) Is accurately positioned with respect to the frame (2).

[0021]

According to the present invention, the convex portion can be foam-molded simultaneously with the foam molding of the seat pad, and the contact of the wire harness with the edge of the through hole of the frame can be prevented.

Therefore, there is no need to provide a protective member separate from the wire harness on the wire harness itself or the frame side, as in the above-described conventional product, or to perform any protection processing. Therefore, the disadvantage of the conventional product can be eliminated with a simple structure.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a structure according to the present invention.

FIG. 2 is an enlarged view of a portion A in FIG.

FIG. 3 is an exploded rear perspective view.

FIG. 4 is an exploded sectional view of a conventional product.

FIG. 5 is a partially cutaway enlarged view of a portion B in FIG. 4;

6 is a partially cutaway enlarged view of a portion C in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat pad 2 Frame 3 Wire harness 10 Convex part 30 Sensor or heater

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hitoshi Yoshimura 3-2-112 Matsubara-cho, Akishima-shi, Tokyo Inside Tachi-S Co., Ltd. (72) Inventor Toshihisa 3-2-1-2 Matsubara-cho, Akishima-shi, Tokyo Tachi-S Co., Ltd. F-term (reference) 3B084 JA05 JC00 JF00

Claims (1)

[Claims] 1. A vehicle seat in which a foam seat pad is supported by a panel frame, a heater or a sensor is incorporated, and a wire harness of the heater or the sensor is drawn out from a through hole formed in the frame. The seat pad is provided integrally with a projection projecting from the through hole of the frame to the outside of the frame and a slit penetrating from the sheet surface to the back surface, and the wire harness is inserted into the projection or the sheet pad is attached to the main body and the sensor. A harness protection structure for a vehicle seat, wherein the wiring harness is protected by inserting a wire harness from the mating portion as a two-part portion.