JPH05338468A - Instrument panel - Google Patents

Abstract

PURPOSE:To provide an instrument panel which can ensure the bulging out of an air bag at the time of air bag unit action. CONSTITUTION:At the time of forming, an instrument panel is composed by using a core material integrally composed of an instrument panel core material and an air bag lid core material 26, and an outer skin 24 in which an instrument panel outer skin and an air bag lid outer skin are integral to each other, and assembly workability and the quality of economy due to the reduction of the number of components are drastically improved. In addition, stiches 28 to facilitate the break of the outer skin 24 are administered at portions opposite to the above instrument panel surface and air bag bulging out opening portion 25 side edges as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an instrument panel in which an air bag device is installed in an instrument panel of an automobile, particularly in an instrument panel on the passenger side of a passenger car.

[0002]

2. Description of the Related Art A conventional instrument panel structure of this type is shown in FIG. Ie 1
Is a steering member arranged on the back side of the instrument panel 2, a bracket 3 is fixed to the steering member 1 by welding means, and the bracket 3 is housed inside the instrument panel 2. The airbag unit 4 is held.

Outside the air bag unit 4, a support arm 7 for supporting an air bag grid 6 that closes an air bag inflation opening 5 formed in the instrument panel 2 and the air bag grid 6 are closed. A locking portion 8 for holding the state is attached,
For example, when an abnormal impact force is detected due to a collision of the vehicle body or the like, the detonating agent in the airbag unit 4 explodes to inflate the airbag. The bulges (jumps) toward the occupant more toward the safety of the occupant.

[0004]

However, in the instrument panel having such a structure, the air bag grid 6 for closing the opening 5 for inflating the airbag is provided. The grid 6 is composed of an air bag grid core material 9 made of metal and an air bag grid pad 10 attached to the surface of the air bag grid core material 9. The air bag grid pad 10 is an instrument. Instrument panel pad 1 attached to the surface of instrument panel 2
Since it is a member different from 1, due to variations in dimensions, accuracy, etc., when manufacturing the air bag grid 6,
The gap width between the air bag grid 6 and the opening 5 becomes non-uniform, or a step 12 is formed between the surface of the air bag grid 6 and the surface of the instrument panel 2 to impair the appearance. Furthermore, the air bag grid 6
Since this is a separate component, there is a problem in that the number of components increases, and problems occur in terms of economy and productivity.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the related art, and an instrument panel core material and an air bag grid core material are integrally formed during molding of an instrument panel. By configuring the instrument panel using a core material and a skin that is a combination of the instrument panel skin and the air bag grid skin, assembly workability and economic efficiency have been greatly improved by reducing the number of component parts. Stitches are provided on the surface of the instrument panel and at the edge of the airbag bulging opening to ensure that the airbag swells when the airbag unit is in operation The aim is to provide an instrument panel that can be used.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in FIGS. 3 to 7. The airbag unit and the structure for supporting the airbag unit are the same as those shown in the conventional example. Therefore, the same reference numerals are given and the description of the same structural parts will be omitted.

Reference numeral 21 denotes an instrument panel according to the present embodiment. The instrument panel 21 is
The core 22 made of resin, the foam layer 23 formed on the upper side of the core 22, and the skin 24 adhered to the surface of the foam layer 23. An opening 25 for inflating the airbag is formed,
An air bag grid core member 26 is attached and positioned in the opening 25 by a plurality of resin clips 27. Further, the clip 27 is preset to have a strength to be broken by the inflation output of the airbag.

The skin 24 is formed into a sheet by, for example, powder slush molding means. In the sheet skin 24, stitches 28 are formed along the position corresponding to the edge of the opening 25. Is applied by a sewing machine treatment, and when the airbag is inflated, its outer skin 2
4 is easily broken along the perforations (stitch), and the airbag is formed so as to be surely inflated to the outside of the instrument panel.

As described above, the core material 22 in which the air bag grid core material 26 is previously attached to the opening 25 and the skin 24 having the stitch 28 are set in a predetermined foaming mold (not shown). Then, after that, the core material 22 and the outer skin 24
The desired instrument panel 21 is created by injecting and foaming a foaming agent between and to integrally form the foam layer 23.

Therefore, according to the instrument panel of this embodiment, the skin 24 is provided with the stitch 28 correspondingly formed along the rim of the opening portion 25 for inflating the airbag to provide the fragile portion of the skin. Therefore, due to the stitching action, when the airbag is inflated, the outer skin 24 is surely ruptured along the stitch 28 to ensure the inflation operation of the airbag. The inflating reliability of the airbag in is improved.

Further, in the instrument panel of this embodiment, a parting line which is the boundary of the air bag grid as shown in the conventional example does not occur on the surface of the skin, and it is a simple stitch pattern. In addition, it is possible to provide an instrument panel of good quality that does not feel strange in terms of design.

In the above embodiment, the stitches 28 are applied to the skin 24 having a constant thickness. For example, in order to further reduce the breaking stress of the skin, as shown in FIG. If the groove 29 is previously formed in the stitched portion and the stitch 28 is formed along the groove 29, the rupture action of the skin when the airbag is inflated is further enhanced.

[0013]

As described above, according to the present invention, the opening 25 for forming the air bag grid core member 26 is formed,
An instrument panel core member 22 in which the air bag grid core member 26 is previously attached and locked in the opening 25.
A foam layer 23 formed on the upper surface of the instrument panel core 22; and stitches 28 formed on the upper surface of the foam layer 23 and facing each other along the edges of the opening 25. According to this, since the instrument panel is composed of the outer skin 21, the outer skin 24
Since the stitches 28 are formed correspondingly along the rim of the opening portion 25 for inflating the airbag to provide the fragile portion of the epidermis, when the airbag is inflated due to the stitching action of this stitch. In the above, the outer skin 24 is stitch 2
8, the airbag is surely ruptured to ensure the inflating operation of the airbag, and the inflating reliability of the airbag during the operation of the airbag device is enhanced.

Further, in the instrument panel of this embodiment, since the parting line which is the boundary of the air bag grid as shown in the conventional example does not occur on the surface of the skin, and it is a simple stitch pattern, the appearance is improved. The effect is that it is possible to provide an instrument panel of good quality that does not feel strange in terms of design.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of a conventional example.

FIG. 2 is an explanatory plan view of FIG.

FIG. 3 is a structural explanatory view of an embodiment of the present invention.

4 is an explanatory plan view of FIG.

5 is an enlarged cross-sectional view of a main part in FIG.

6 is a cross-sectional view taken along the line AA in FIG.

FIG. 7 is an enlarged cross-sectional view of a main part showing another embodiment of the present invention.

[Explanation of symbols]

21 ... Instrument panel 2 ... Core material 23 ... Foam layer 24 ... Skin 25 ... Opening 26 ... Air bag grid core material 27 ... Clip 28 ... Stitch

Claims (1)

[Claims] 1. An opening (25) for depositing an air bag grid core (26) is formed, and the opening (2) is formed.
5) An instrument panel core member (22) obtained by previously attaching and locking the above air bag grid core member (26).
A foam layer (23) adhered and formed on the upper surface of the instrument panel core (22), and the foam layer (23)
A skin (2) which is formed on the upper surface of the substrate and has opposing stitches (28) along the edges of the opening (25).
An instrument panel comprising: 1) and