JPH09183372A - Leather-upholstered air bag cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve an appearance in terms of design and to facilitate leather upholstering so as to improve workability. SOLUTION: In an air bag cover in which a leather 50 is stuck on the surface of the air bag cover provided with a breakage line to be broken according to the air bag inflation, a cover main body 4, which is provided with a thin breakage line consisting of a recess part, 46 formed on the inside of the air bag cover main body 4 and a projection part 47 formed on the outside of the breakage line, and the leather 50, which is provided with a thin part consisting of a recess part, 51 formed on the inside, are provided, and the cover main body 4 is covered by the leather 50 so as to be jointed with it while matching the projection part 47 in the cover main body 4 with the recess part 51 in the leather 50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airbag cover of an airbag device mounted on a steering wheel of an automobile, and more particularly to a leather-covered airbag cover in which the surface side of the airbag cover is covered with leather. .

[0002]

2. Description of the Related Art An airbag device for a driver's seat of an automobile is installed at a central portion of a steering wheel. The airbag device for a driver's seat has an airbag mounted on a mounting plate generally called a retainer. An airbag cover is attached so as to cover them. And
Generally, a rib (vertical wall) for fixing to a retainer is formed on the back side of the airbag cover, and the airbag cover is configured to be able to accommodate the bag inside the rib.

[0003] The airbag cover is provided with a slit as a break line so that the airbag cover is cut along a predetermined line when the airbag is activated. It is known that the slit is formed such that a groove is continuously formed in a portion of a line to be cleaved, formed in a perforated shape, or formed by increasing the depth of the groove at intervals. When the airbag cover has a two-layer structure of a hard layer and a soft layer,
Some hard layers also have slits formed along the planned cleavage line.

In any case, the airbag cover is made of synthetic resin or the like, and the leather is also attached to the airbag cover in order to luxuriously decorate the surface or in accordance with the leather winding of the steering wheel. There is a request. However, if leather is simply attached to the airbag cover, there is a problem in that the break line is covered and the bag is unfolded.

For this reason, there has been proposed a technique in which a plurality of pieces of leather are separately prepared, and they are superposed on each other at the breaking line and joined by an adhesive or the like. If a separate leather is attached along such a break line, not only the appearance is inconvenient but also the work of laminating the leather is troublesome.

The present invention has been made in view of the above problems, and its purpose is to provide a leather-applied air that has a good appearance in terms of design, is easy to attach leather, and can improve workability. To provide a bag cover.

[0007]

A leather-covered airbag cover according to the present invention is an airbag cover in which leather is bonded to the surface of the airbag cover having a break line that splits as the airbag expands. A cover body having a thin break line formed of a recess formed inside the airbag cover body and a convex portion formed outside the thin break line, and a thin portion formed of a recess formed inside And a cover having a convex portion of the cover main body and a concave portion of the leather that are joined together by covering the cover main body with the leather.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Slits 43 and 44 are formed on the inside of an airbag cover body 4 of this embodiment, and the slits 43 and 44 are thin break lines composed of recesses 46. On the outside of this thin break line, the convex portion 4
7 are formed. The leather 50 is attached to the upper surface of the airbag cover body 4.

The inside of the leather 50 of this example is located at the same position as the breaking line, and the convex portion 4 of the airbag cover body 4 is provided.
A concave portion 51 arranged on the upper surface 7 is formed.

The convex portion 4 of the airbag cover body 4
7 and the recess 51 of the leather 50 are aligned and the airbag cover body 4 is covered with the leather 50 and joined. The airbag cover body 4 and the leather 50 are joined together by using an adhesive or the like.
In the joining operation, since the convex portion 47 formed on the upper surface of the airbag cover body 4 can be used as a guide while being positioned with the concave portion 51 of the leather 50, the sticking can be performed efficiently. Workability is improved.

Further, since the portion where the concave portion 51 of the leather 50 is formed is thin and coincides with the breaking line, the airbag 50 can be torn open without hindering the leather 50 when the airbag is deployed.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention, and can be variously modified within the scope of the present invention.

1 to 6 show an embodiment of a leather-covered airbag cover according to the present invention. FIG. 1 is a front view of a steering wheel, and FIG. 2 is a cover showing a state before leather is stuck. FIG. 3 is a perspective view of the main body, FIG. 3 is a front view of the cover main body showing a state in which leather is attached, FIG. 4 is a sectional view taken along line AA of FIG. 3, FIG. 5 is a sectional view taken along line BB of FIG. 1, and FIG. It is CC sectional drawing of FIG.

As shown in FIG. 1, the steering wheel S of this embodiment has an annular grip portion 10a and three extended grip portions 10b extending inward from the annular grip portion 10a. The airbag device E is disposed inside the extended grip portion 10b. The airbag device E of this example includes a bag 1, an inflator 2, a retainer 3, and an airbag cover body 4 as main components.

As shown in FIGS. 5 and 6, the retainer 3 of this embodiment has a central hole 3 for mounting the inflator 2 in the central portion.
2 is formed, and the peripheral edge of the opening of the bag 1 is clamped by the retainer 3 and the back ring 35, and is attached together with the inflator 2 and the retainer 3 by a fastener such as a screw, so that the retainer 3, the inflator 2, and the bag 1 are integrated. It is assembled. The bag 1 of this example is housed and preserved by a known means.

Further, the retainer 3 of this embodiment is formed with a bent portion 33 which is bent toward the boss portion 5 on both end sides, and the bent portion 33 is a rib formed on the airbag cover body 4 at a predetermined position. 42 and the boss plate 7 attached to the boss portion 5
And a screw or the like, which are integrally fixed by a fixing tool 8 of a mounting screw.

The airbag cover body 4 of this embodiment is made of synthetic resin and has an upper surface 41 and a rib 42 extending downward from the upper surface 41. The rib 42 covers the bag 1, the inflator 2 and the like. It is formed so as to surround the range.

A first slit 43 in the vehicle width direction (horizontal direction: left-right direction in FIG. 1) is formed at the center position on the back surface side of the airbag cover body 4 of this example, and the end of this first slit 43 is formed. At 43a, a second slit 44 is formed in the first slit 43 at right angles to the first slit 43, and an H-shaped break line is formed by the first slit 43 and the second slits 44, 44. Therefore, the initial cleavage portion is used as the central portion of the cover of the first slit 43, and is configured to continuously propagate from the second slit 44 to the final cleavage position in the vicinity of the formation position of the hinge portion 45.

The slits 43 and 44 formed on the inside of the airbag cover body 4 of the present example are thin break lines consisting of the recesses 46, and the convex portions 47 are provided outside the thin break lines. Are formed. The recess 4
The break line is formed between 6 and the convex portion 47 by being thinner than the other portions. The leather 50 is attached to the upper surface of the airbag cover body 4.

The inside of the leather 50 of this example is located at the same position as the breaking line, and the convex portion 4 of the airbag cover body 4 is provided.
A concave portion 51 arranged on the upper surface 7 is formed. Therefore, in the leather 50, the concave portion 51 formed on the inner side makes the portion where the concave portion 51 is formed thin.

The convex portion 4 of the airbag cover body 4
7 and the recess 51 of the leather 50 are aligned and the airbag cover body 4 is covered with the leather 50 and joined. The airbag cover body 4 and the leather 50 are joined together by using an adhesive or the like.
In the joining work, since the convex portion 47 formed on the upper surface of the airbag cover body 4 can be used as a guide while being positioned with the concave portion 51 of the leather 50, the bonding can be performed efficiently. Workability is improved.

Further, since the portion where the recess 51 of the leather 50 is formed is thin and coincides with the breaking line of the airbag cover body 4, the leather 50 is torn open without any obstacle when the airbag is deployed. Can be made. Needless to say, leather includes synthetic leather and the like.

[0023]

As described above, according to the present invention, since the recessed portion of the leather becomes thin and coincides with the breaking line of the airbag cover body, the leather is obstructed when the airbag is deployed. The air bag cover can be torn open without becoming. In the joining work, the convex portion formed on the upper surface of the airbag cover body can be used as a guide for the bonding while performing the positioning, so that the bonding can be efficiently performed and the workability is improved.

[Brief description of the drawings]

FIG. 1 is a front view of a steering wheel according to the present invention.

FIG. 2 is a perspective view of the cover body showing a state before the leather is attached.

FIG. 3 is a front view of the cover body showing a state in which leather is attached.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a sectional view taken along line BB of FIG. 1;

FIG. 6 is a sectional view taken along line CC of FIG. 1;

[Explanation of symbols]

 4 Airbag cover main body 43,44 Slit 46 Recessed portion 47 Convex portion 50 Leather 51 Recessed portion

Claims (1)

[Claims] 1. An airbag cover formed by laminating leather on a surface of an airbag cover having a rupture line that is split when an airbag is inflated, the thin wall including a recess formed inside an airbag cover body. Of the cover body, and a leather having a thin portion made of a concave portion formed inside, and a convex portion of the cover body, A leather-covered airbag cover, characterized in that the cover body is covered with leather and joined together with the recess of the leather.