JP2576031Y2 - Vehicle airbag device - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates, the instrument panel of a motor vehicle, a vehicle for Airbus in particular, to place the air bag system in the instrument panel in the side of the passenger side of the passenger car
Related to a tag device .

[0002]

2. Description of the Related Art The structure of a conventional vehicle airbag device of this type is as shown in FIG. That is, 1
Is a steering member disposed 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.

On the outside of the airbag unit 4, a support arm 7 for supporting an airbag grid 6 for closing an airbag inflating opening 5 formed in the instrument panel 2, and closing the airbag grid 6 is provided. A locking portion 8 for holding a state is attached,
For example, upon detecting an abnormal impact force due to a collision or the like of the vehicle body, the priming agent in the airbag unit 4 explodes, inflating the airbag, and the inflated airbag pushes up the airbag grid 6 as shown by a chain line to open the airbag. The section is bulged (projected) toward the occupant from the section to secure the occupant.

[0004]

[Problem to be solved by the invention]
In the airbag device for a vehicle, an airbag grid 6 for closing the opening 5 for inflating the airbag is provided. The configuration of the airbag grid 6 is a metal airbag grid core. The air bag grid pad 9 is formed on the surface of the instrument panel 2. The air bag grid pad 10 is formed on the surface of the instrument panel 2. Instrument panel pad 11
Since this is a separate member, a boundary (parting line) 12 is formed between the air bag grid pad 10 and the instrument panel pad 11, and there is a problem that the appearance of the entire instrument panel is impaired. When the airbag lid 6 is manufactured, the gap width between the airbag lid 6 and the opening 5 becomes non-uniform due to variations in dimensional accuracy and the like, or the airbag lid 6 surface and the instrument panel 2 surface A step occurs between them, and the appearance is impaired. Furthermore, the conventional mounting structure of the airbag unit 4 has a problem that since the airbag unit 4 is mounted on the steering member 1 via the bracket 3, the mounting operation is troublesome and the workability is poor. .

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem. An instrument panel core, a skin, and a foam layer are integrally formed between the core and the skin. in the formation and the instrument panel comprising a part of the core, fixing with an opening for the airbag inflating in the opening, the airbag case formed by interior airbag unit to the internal together allowed to, by attaching to the steering member energy cushion for receiving the operation reaction force of the airbag unit during airbag inflating operation, airbag inflating with allowed to significantly improve mounting workability of the d a bag unit of time
The opening force of the lid is sufficiently obtained, and the airbag
The steering member receives the swelling reaction force,
The destruction of the torque panel can be effectively prevented
An object of the present invention is to provide a vehicle airbag device .

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in FIGS.

[0007] 21 is an instrument panel,
The instrument panel 21 is made of a resin core material 22.
And a foam layer 23 integrally formed on the upper side of the core material 22.
And a skin 24 attached to the surface of the foam layer 23, and an opening 25 for inflating the airbag is formed in a part of the core material 22. The airbag retainer 26 shown in FIG. 4 is attached to the opening 25. The structure of the airbag retainer 26 is such that the opening 28 is located at the edge of the opening 25 and corresponds to the opening 25. And an air bag grid 30 which is connected to one side of the frame member 27 via a curved hinge portion 29 and is positioned so as to close the opening 28, and is integrally formed. The rising edge 31 is formed on the periphery. The frame member 27 is provided with an implanted bolt 32 for fixing the airbag retainer 26 to the core member 22, and the air bag retainer 26 is connected to the core member 22 through the implant bolt 32. It is fixed to. The steering member 37 is provided with an energy buffer 36 for receiving an operation reaction force of an airbag incorporated in an airbag unit described later.

To form the instrument panel 21, the core member 22, to which the airbag retainer 26 is fixed via the studs 32, and the skin 24 are inserted into the opening 25 of the core member 22 by a predetermined foaming mold. After setting in
The instrument panel 21 is formed by pouring a foamed resin between the core material 22 and the skin 24 and performing foam molding. On the back side of the instrument panel 21 thus obtained, an airbag case 34 in which an airbag unit 33 is stored and set in advance by using the studs 32 is used to fix the airbag case for the vehicle.
This constitutes a device .

The above is the configuration of the present embodiment. Next, the operation will be described. When the airbag unit 33 set in the airbag case 34 is detonated by an impact force, the airbag inflated by the explosion force. The air bag grid 30 is pushed up with the hinge portion 29 as a boundary by the inflation force. The foam layer 23 and the skin 24 are cut by the blade 31 of the air bag grid 30 by the pushing force of the air bag grid 30, and the air bag grid 30 is opened as shown by a chain line in FIG.
The airbag in 4 inflates to the outside of the instrument panel 21 to provide passengers with safety. When the air butts unit 33 is operated, an operation reaction force is generated in the air bag case 34.
Since the energy buffer 36 is provided on the rear side of the airbag case 34 to receive the reaction of the airbag case 34, even if the airbag case 34 is displaced in the rear direction, the energy buffer 36 is received by the energy buffer 36, Since the displacement of the airbag case 34 is regulated, it is possible to prevent the various parts of the instrument panel 21, particularly, the mounting portion of the airbag case 34 or the airbag case 34 from being broken. Further, since the excessive displacement of the airbag case 34 can be prevented, an adverse effect on the airbag deployment operation or an adverse effect on the glove box, the air conditioner unit, the air conditioner duct, the harness, and the like can be prevented. Further, since the airbag lid 30 is locked to the airbag case 34, even if the airbag lid 30 is pressed from the upper part of the instrument panel 21, the airbag lid 3 is pressed.
0 does not change. Further, the lightening portion 35 of the foam layer is easily broken.

As described above, in the present embodiment, the airbag unit 33 is held in the airbag case 34 fixed to the core member 22 of the instrument panel 21. The workability of mounting on the vehicle body is greatly improved. Further, since the case 34 accommodating the airbag unit 33 is directly fixed to the instrument panel 21, the opening 25 of the airbag inflation opening provided in the instrument panel 21 is attached to the airbag unit. Position accuracy can be improved.

In this vehicle airbag device,
To the instrument panel side of the airbag case.
The fixing position is directly around the periphery of the airbag inflation opening, and
The airbag case is retained by bolts 32
Lid part when the airbag is inflated.
Opening force is sufficient, and the certainty of airbag inflation is high.
Can be In addition, the airbag is located on the back of the airbag case.
The steering member that receives the reaction force at the time of the bulge approach is close
The reaction force when the airbag is inflated
It can be received by a tearing member,
The instrument panel can be prevented from being broken.
Furthermore, the airbag case of the steering member
The shock absorber is provided at the corresponding position so that when the airbag is inflated,
Force between the airbag case and the steering member
Absorbs air and prevents the destruction of its airbag case
Can be.

[0012]

As described above, according to the first aspect of the present invention , the core
Around the opening on the back of the material,
The airbag case that houses the airbag unit
At the same time, on the back side of the airbag case,
Because the members are arranged close to each other,
Easy alignment with instrument panel opening
As a result, the workability of assembling the airbag device is improved.
The opening force of the lid when the airbag is inflated
As a result, the reliability of the inflation of the airbag is increased. Further airbag unit 33 a reaction force of the airbag case 34 at the time of initiation operation, can be received by the scan tearing member 37 instrument panel and air-conditioning units are provided in this installation near the instrument panel, each of such air-conditioning duct Interference force on members is reduced,
Damage to those members can be prevented .

[0013] In the configuration according to the second aspect , the energy
With cushioning material, it becomes an airbag case when the airbag is inflated
The impact force acting on the airbag is reduced.
This has the effect that breakage of the steel can be prevented .

[Brief description of the drawings]

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

FIG. 2 is an explanatory plan view of a conventional example.

FIG. 3 is a sectional view illustrating the configuration of the embodiment of the present invention.

FIG. 4 is a perspective view of a member according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 21 ... Instrument panel 22 ... Core material 23 ... Foam layer 24 ... Skin 25 ... Opening 26 ... Airbag retainer 27 ... Frame member 28 ... Opening 29 ... Curved hinge 30 ... Airbag grid 31 ... Blade 32 ... Bolt 33 ... Air Bag unit 34 ... Airbag case 35 ... Thickening part 36 ... Energy buffer 37 ... Steering member

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B60R 21/20 B60K 37/00

Claims (2)

(57) [Scope of request for utility model registration] 1. Instrument with skin and foam layer
Part of the instrument panel core that constitutes the panel
An airbag inflating opening, and the opening
An airbag lid part with a blade standing on the edge
In the airbag device for a vehicle, the airbag device is provided with an airbag around the opening on the back surface of the core material.
Secure the airbag case inside the bag unit.
To the back of the airbag case.
A car characterized in that ring members are arranged close to each other.
Dual-use airbag device . 2. The air bar of the steering member.
When the airbag is inflated,
Make sure that an energy buffer is
The vehicle airbag device according to claim 1, wherein: