JPH06247251A - Air bag lid mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] The air bag grid can be easily attached and detached, the structure is simple, and the freedom of molding of the instrument panel can be increased. [Structure] An opening (5) for airbag deployment provided in the instrument panel (1) is closed above the glove box (57) and deployed from the inside of the instrument panel (1) to the passenger side in the passenger compartment. In the airbag mounting structure for mounting the airbag bag (17) opened by the airbag to the instrument panel (1), the mounting surface (36) is provided on the upper edge side of the opening (5).
Is provided with a lid mounting portion (35) facing the glove box (57) side below, and the air bag grid (17) is provided.
Is provided with a lid support portion (25) fastened to the lid attachment portion (25), the lid support portion (25) of the air bag grid (17) is aligned with the attachment surface (36), and the glove box (57). ) Side is fastened and fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air bag grid mounting structure for closing an opening for deploying an air bag.

[0002]

2. Description of the Related Art A conventional air bag grid mounting structure is shown, for example, in FIGS. 4 and 5 (see JP-A-62-198547 for a similar structure).

As shown in FIG. 4, an air bag grid 101 is provided.
Is applied when the airbag module 105 is arranged on the passenger seat side of the passenger compartment. That is, the airbag module 105 is attached to the strength member in the instrument panel 103. Airbag module 10
In No. 5, the airbag is designed to be deployed toward passengers in the passenger compartment. The deployment of the air bag is performed by the high pressure gas generated by the ignition of the inflator. The ignition of the inflator is performed when the collision sensor detects a vehicle collision.

The air bag grid 1 is normally operated.
The opening 109 is closed by 01, and the front surface of the airbag module 105 is covered.

The attachment of the air bag grid 101 to the instrument panel 103 is as shown in FIG. 5 (a) is a sectional view showing only the upper part of the line V-V line in FIG. 4, and FIG. 5 (b) is an enlarged view of the main part.

First, a mounting bracket 111 is provided in the opening 109 of the instrument panel 103.

On the other hand, in the air bag grid 101,
A lid support portion 119 is provided on the back surface thereof. The lid support portion 119 is formed by integrally projecting the core material 121 of the air bag grid 101. Lid support 11
Further, a seat surface panel 127 which constitutes a seat surface 125 of the weld bolt 123 is fixed to the seat 9.
The weld bolt 123 is welded and fixed to the seat surface 125 of 27. Then, the lid support portion 119 is aligned with the mounting bracket 111, the weld bolt 123 penetrates the through hole 111 a of the mounting bracket 111, and is fastened with the nut 131 via the reinforcing plate 129. A guide 133 is provided below the mounting bracket 111 and the lid support portion 119.

As shown in FIG. 6, which is a cross section at a position different from that of FIG. 5, the mounting bracket 111 is fastened and fixed to the bracket mounting portion 115 of the instrument panel 103 with a screw 117 via a bracket supporting portion 113. Has been done. The bracket support portions 113 are provided at predetermined intervals in the vehicle width direction of the instrument panel 103.

Therefore, the air bag grid 101 is normally operated.
Can cover the opening 109 and the front surface of the airbag module 105. When the airbag deploys, the portion A in FIG.
1 is opened to the passenger compartment side. The guide 133 serves as a guide for the airbag below the mounting bracket 111 and the lid support portion 119 when the airbag is deployed.

[0010]

However, in the structure as described above, the nut 131 must be fastened in the direction of the arrow B inside the instrument panel 103 when the air bag grid 101 is attached. Therefore, at the time of inspection, repair, etc., the nut 131 must be removed from the direction of the arrow B, and there is a problem that the duct 135 is always removed as a work order.

Further, a separate guide 133 for guiding the deployed airbag is required below the mounting bracket 111 and the lid support portion 119, which causes a problem of cost increase.

Further, since it is necessary to fasten the nut 131 from the direction of the arrow B, the mounting bracket 111 must be set at a relatively vertical angle, and the guide 133 is provided below the mounting bracket 111.
Is provided, the upper edge portion 1 of the air bag grid 101
There is a risk that the distance S between the guide 37 and the extension 139 of the guide 133 becomes large, which impairs the molding flexibility of the instrument panel 103.

Therefore, the present invention provides an air bag grid mounting structure which allows the air bag grid to be easily removed at the time of repair, inspection, etc., is inexpensive, and can increase the degree of freedom in molding the instrument panel. To aim.

[0014]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention closes an airbag deployment opening provided in an instrument panel above a glove box, so that the vehicle is removed from the inside of the instrument panel. In the air bag grid mounting structure for mounting the air bag grid that is opened by the air bag that is deployed to the passenger inside the vehicle to the instrument panel, a lid mounting portion whose mounting surface faces the glove box side below is provided on the upper edge side of the opening. A lid support portion that is fastened to the lid attachment portion is provided on the air bag grid, and the lid support portion of the air bag grid is aligned with the attachment surface and fastened and fixed from the glove box side.

[0015]

When mounting the air bag grid, the lid support portion can be aligned with the mounting surface of the lid mounting portion and fastened from the glove box side. To remove the air bag grid, the glove box can be opened and the lid support portion can be unfastened to the lid mounting portion from the glove box side.

[0016]

Embodiments of the present invention will be described below.

FIG. 1 is a sectional view of the same position as FIG. 5, in which an airbag module 3 is arranged on the passenger seat side of the passenger compartment. The airbag module 3 is attached to a strength member (not shown) in the instrument panel 1 as described above. The instrument panel 1 is provided with an opening 5 at a position corresponding to the airbag module 3. The opening 5 is for the airbag of the airbag module 3 to pass through when the airbag is deployed from the inside of the instrument panel 1 to the passenger side in the passenger compartment.

The instrument panel 1 is composed of a panel body 7, an instrument pad 8 and an outer skin 9 provided on the surface thereof. The instrument pad 8 is thinly formed at the periphery of the opening 5, and the fitting portion 11 is formed. Are configured.
Further, bracket mounting portions 13 and 15 for fastening are provided inwardly at both upper and lower edges of the opening 5 in the panel body 7,
A plurality of them are provided in the vehicle width direction. The opening 5 is closed by the air bag grid 17.

The air bag grid 17 is a pad material 19
And a skin 21 and a core member 23, and the peripheral edge 17a is formed in a shape corresponding to the fitting portion 11. The thickness of the air bag grid 17 is formed so as to substantially match the height of the fitting portion 11. A part of the core material 23 is formed so as to project into the opening 5 and serves as a lid support portion 25. A support hole 27 is provided in the lid support portion 25. Also, in the upper and lower central part of the back surface of the air bag grid 17,
Locking pins 29 project from the left and right sides, and
29a has a slightly enlarged spherical shape. The air bag grid 17 is attached to the panel body 7 via a mounting bracket 31.

The mounting bracket 31 has a window 39 through which the airbag passes, and the window 39 is provided in the vertical plate 3.
3, the upper lid mounting portion 35, and the lower guide plate 3
7 and 7. The window 39 is configured to face the opening 5, and the lid mounting portion 35 and the guide plate 37 are configured to extend in the airbag deployment direction. The lower surface of the lid mounting portion 35 has a mounting surface 36.
Has become. The mounting surface 36 is configured to face the glove box 57 side below. Lid mounting part 35
A bracket support portion 41 is provided at the tip of the, and a seat surface plate 43 is disposed on the upper surface side. A weld nut 45 is welded to the seat plate 43. The seat plate 43 reaches the bracket support portion 41 and is fastened and fixed to the bracket mounting portion 13 together with the bracket support portion 41 by the screw 47. The weld nuts 45 are provided on both sides of the airbag module 3 in the vehicle width direction so as to be displaced from each other, and are also displaced from the bracket mounting portion 13 in position.

A bracket support portion 49 is provided on the guide plate 37 in the same manner as described above, and is fastened and fixed to the bracket mounting portion 15 with screws 51.

The lid supporting portion 25 is inserted from the window 39 of the mounting bracket 31, is aligned with the mounting surface 36 on the lower surface of the lid mounting portion 35, and the bolt 53 is welded to the weld nut 4.
It is fixed by fastening to 5.

A lid lock 53 is provided in the middle of the vertical plate 33 of the mounting bracket 31.
The lid lock 53 has a lock recess 55, and the tip 29a of the pin 29 is fitted and locked by a predetermined pressing force with a feeling of moderation.

Next, the operation will be described.

First, the air bag grid 17 is attached as follows. That is, the bracket support portion 41 on the upper side of the mounting bracket 31 is fastened and fixed to the bracket mounting portion 13 together with the seat plate 43 by the screw 47.
Further, the lower bracket support portion 49 is fastened and fixed to the bracket mounting portion 15 with a screw 51.

Next, the lid support portion 25 of the air bag grid 17 is aligned with the attachment surface 36 of the lower surface of the lid attachment portion 35,
The bolt 53 is fastened to the weld nut 45. This fastening and fixing can be performed in the arrow C direction from the opening 59 of the instrument panel 1 by opening the glove box 57.

The tip 29a of the pin 29 of the air bag grid 17 is locked in the lock recess 55 of the lid lock 53.

Therefore, the air bag grid 17 has the fitting portion 1
1 to be in a state of being substantially flush with the instrument panel 1.

In order to remove such an air bag grid 17 at the time of inspection and repair, contrary to the above, open the opening 59 of the instrument panel 1 by the glove box 57 and remove the fastening of the bolt 53 from the direction of arrow C. Can be done easily by. Accordingly, even when the air bag grid 17 is removed, the work can be remarkably easily performed without removing the duct 135 or the like.

Further, in such a structure, the lid support portion 25 of the air bag grid 17 is in a substantially horizontal state in the mounted state, and the deployment locus of the airbag is determined by the air bag grid 17.
The dimension S of the air bag grid 17 becomes extremely small above the point 61 where the air bag grid 17 intersects the surface. Therefore, the degree of freedom in molding the instrument panel 1 can be significantly increased.

If the glove compartment is of a type that does not have an opening communicating with the instrument panel even when the glove compartment is opened, a part of the glove compartment may be easily removed. This makes the task much easier than with duct removal.

2 and 3 show the movement of the air bag grid 17 with respect to the deployment of the air bag 3a.

That is, when the collision sensor detects a vehicle collision, the inflator is ignited and the airbag 3a of the airbag module 3 is inflated by the high pressure gas as shown in FIG. At this time, the air bag grid 17 is in a state of being smoothly opened with the point A as the center of rotation. Airbag 3a
At the time of deployment, the lower surface of the lid support portion 25 guides the deployment as it is, and the guide plate 37 guides the deployment on the lower side. Therefore, the structure can be simplified without the need for a separate guide.

[0034]

As is apparent from the above, according to the structure of the present invention, the lid support portion of the air bag grid can be fastened or unfastened from the glove box side. You can work by simply opening it. Therefore, the repair or inspection of the air bag grid can be performed without removing the duct or the like in the instrument panel. For this reason,
Workability can be significantly improved.

Further, since the length of the air bag grid above the lid supporting portion can be shortened, the degree of freedom in molding the instrument panel can be significantly increased.

Further, since the lid supporting portion itself can be used as a guide for the airbag, it is not necessary to provide a separate guide, and the manufacturing can be performed at low cost.

[Brief description of drawings]

FIG. 1 is a sectional view according to an embodiment of the present invention.

FIG. 2 is an operation explanatory view.

FIG. 3 is an operation explanatory view.

FIG. 4 is a perspective view of a front portion of a vehicle compartment showing an arrangement of an air bag grid according to a conventional example.

5A is a sectional view of a main part taken along the line V-V in FIG. 4, and FIG. 5B is an enlarged sectional view of the same.

FIG. 6 is a cross-sectional view showing support of a mounting bracket.

[Explanation of symbols]

 1 Instrument panel 5 Opening 17 Air bag grid 25 Lid support 35 Lid mounting 36 Mounting surface 57 Glove box

Claims (1)

[Claims] 1. An air bag grid which is closed by an airbag deployment opening provided in an instrument panel above a glove box and which is opened by an airbag which is deployed from the inside of the instrument panel to a passenger in a vehicle compartment. In an air bag grid mounting structure for mounting on an instrument panel, a lid mounting portion having a mounting surface facing a glove box side below is provided on an upper edge side of the opening, and the air bag grid is fastened to the lid mounting portion. An air bag grid mounting structure, wherein a lid support part is provided, the lid support part of the air bag grid is aligned with the mounting surface, and the air bag grid is fastened and fixed from the glove box side.