JP2000185618A - Air bag installing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air bag installing structure capable of ensuring a installing stiffness and a visual quality with a small number of parts. SOLUTION: In an air bag installing structure, an air bag 10 installed to a vehicular ceiling 2 is covered with a garnish 11 and a covering element 12. The garnish 11 comprises housing part 14 having an opening 13 and formed in an opposite position of the air bag 10 so as to surround the air bag 10, and a ceiling installing part 15 extending from the housing 14 and mounted to the ceiling 2. The covering element 12 is attached to the garnish 11 to cover the opening 13 so as to open/close, and conceals the ceiling installing part 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an airbag mounting structure, and more particularly to an airbag mounting structure suitable for mounting an airbag for a rear passenger.

[0002]

2. Description of the Related Art Airbags for vehicles are rapidly becoming widespread, and airbags for driver's seats and passenger's seats are already mounted on vehicles at a considerable rate. Also,
An airbag is also being considered for the central seat of a seat that can be seated by three in the front of the vehicle compartment. For example, Japanese Patent Laid-Open Publication No. There is disclosed an airbag unit in which an airbag is inflated and deployed toward a center seat occupant in the event of a vehicle collision to protect the center seat occupant inside a front header having a closed cross-section structure extending toward the center. On the other hand, as a technique for improving the efficiency of maintenance and inspection or replacement of an airbag, for example, Japanese Utility Model Laid-Open No. 5-5616 discloses an airbag inflation window formed on an upper surface of an instrument at a front portion of a vehicle compartment. An airbag door provided with a door that can be opened and closed by hinge means is disclosed.

Further, airbags for rear passengers have been studied. Since the rear seat of the vehicle does not have a steering wheel or an instrument panel like the front seat, the mounting position of the airbag for the rear occupant may be, for example, a ceiling in the passenger compartment. In this case, it is necessary not to impair the appearance of the ceiling.Therefore, an airbag grid is provided at the lower part of the airbag, and a garnish is provided at the outer periphery of the airbag, so that the airbag body is normally invisible. You. The airbag is mounted directly on a reinforced ceiling because it receives a reaction force when deployed. The garnish is fixed to the ceiling by clips or screws after the airbag is attached.

[0004]

As described above, an airbag for a rear occupant is provided with an air bag grid and a garnish, each of which is independently mounted on a ceiling. For this reason, the relative position between the air bag grid and the garnish is likely to vary, and in such a case, there is a problem that it is difficult to adjust the gap between the two and to align the surfaces, resulting in poor workability. In addition, the energization check of the airbag is performed at the end of the outfitting process to prevent malfunction during the installation work, but at that time, a work hole for connecting the airbag and the wiring for energization with a connector is required separately. However, if this work hole is exposed, the appearance will deteriorate. It is conceivable to attach a lid to the work hole in order to improve the appearance, but this method has a problem that the cost increases due to an increase in the number of parts. In addition, when the garnish is fixed to the ceiling using a clip, there is a problem that the garnish is likely to come off the ceiling when a load is applied during deployment of the airbag. In order to avoid this problem, when the garnish is fixed to the ceiling using a screw, it is necessary to hide the screw head with a cap or the like in order to improve the appearance.
In this method, the number of parts increases and a cap attaching operation occurs, which is a problem in terms of cost.

Accordingly, an object of the present invention is to provide an airbag mounting structure capable of securing mounting strength and appearance quality with a small number of parts.

[0006]

An airbag mounting structure according to the present invention comprises: an airbag mounted on a ceiling of a vehicle;
A garnish having an opening at a position facing the airbag and formed to surround the airbag, a garnish extending from the housing and being attached to the ceiling, and a garnish attached to the garnish. A lid for closing the opening so as to be openable and closable, and for covering the ceiling mounting portion.

In the present invention, the lid is not provided in the airbag itself, but an opening is provided at a position facing the airbag in the housing portion of the garnish and the lid is provided therein. The problem of the variation in the relative position with respect to is solved. Also,
By opening the lid, the opening of the garnish can be used as a working hole, so there is no need to separately set a working hole for connecting the airbag and the wiring for energization with a connector. Furthermore, since the garnish is fixed to the ceiling by, for example, a screw at a ceiling mounting portion extending from the housing portion, the mounting strength is secured. The ceiling mounting portion is hidden by the lid that closes the opening, so that it cannot be seen from the outside. This eliminates the need for a conventional screw-hiding cap, and ensures the appearance quality with a small number of parts.

[0008]

FIG. 1 is a view showing one embodiment of an airbag mounting structure according to the present invention. In the present embodiment, two airbags 10 for rear passengers are provided side by side in the vehicle width direction on a ceiling 2 near a center pillar 1 in a vehicle interior, as shown in the figure. Normally, the airbag 10 is covered with a garnish 11 and a lid 12 so as to be invisible from the outside. The garnish 11 includes a housing part 14 having an opening 13 at a position facing the airbag 10 and surrounding the airbag 10. The housing part 14 is connected to a ceiling mounting part 15 protruding from the ceiling side of the opening 13 so that a worker can fix the garnish by the screw to the ceiling 2 through the opening 13. Has been. The lid 12 is provided so as to be openable and closable in the opening 13 of the housing portion, and is normally closed, but can be manually opened at the time of work, and is opened by the load when the airbag 10 is deployed. Adjusted to cover.

FIG. 2 is a view showing a cross section taken along line AA ′ of FIG. In the figure, each part is exploded and shown for easy understanding of the mutual system. The ceiling 2 is, as shown in the figure, a ceiling body 2
0 and a ceiling auxiliary member 21, and the airbag 10 and the garnish 11 are attached to the ceiling auxiliary member 21. In the figure, the ceiling auxiliary member 21 of the airbag 10
The garnish 11 is attached to the ceiling auxiliary member 21 at a position near the back of the paper, and the garnish 11 is set so that the two attachment positions do not overlap. The airbag 10 includes an airbag body 22.
And an airbag holding member 23 for holding the same, and a ceiling fixing member 24 connected to the airbag holding member 23. The ceiling fixing member 24 is fixed to the ceiling auxiliary member 21 with a screw 25. To attach the airbag 10 to the ceiling. The garnish 11 includes the housing portion 14 as described above, and the housing portion 14 is connected to the ceiling mounting portion 15. The ceiling mounting portion 15 is provided to protrude toward the ceiling 2 side of the opening 13 as shown in the figure. With the lid 12 opened, the worker attaches the garnish 11 to the ceiling 2 by fixing the ceiling mounting portion 15 to the ceiling auxiliary member 21 with the screw 26 from the opening 13 using a screwdriver or the like. After the installation is completed, the lid 12 is closed, and the ceiling mounting portion 15 of the garnish 11 and the screw 26 are closed.
Can be hidden from view and the appearance quality of the airbag mounting structure can be kept good.

FIG. 3 is a view showing a section taken along line BB 'of FIG. In this drawing, the same reference numerals as those in FIG. 2 denote the same components. In this figure, a structure for attaching the lid 12 to the garnish 11 will be particularly described. Lid 12
Is attached to the garnish 11 before the garnish 11 is attached to the ceiling 2. Garnish 1
As shown in FIG. 1, protrusions 30 and 31 are formed inside at the boundary between the housing portion 14 and the opening 13 as shown in the figure. One end of the lid 12 is fixed to one projection 30 by a screw 32, and the other end of the lid 12 is fixed to the other projection 31 by a clip 33. This is a state where the opening 13 is closed by the lid 12. As a material of the lid 12, for example, polypropylene (PP) is used. A PP hinge structure 34 is formed in the vicinity of the end of the lid 12 on the side of the protrusion 30. When an outward force acts on the lid 12 artificially or due to a load when the airbag 10 is deployed, the clip is clipped. 33
Are forcibly opened, and the lid 12 is opened outward with the PP hinge structure 34 as a fulcrum.

FIG. 4 is a diagram showing another example of a structure for attaching the lid to the garnish. In the example of FIG. 3 described above, one end is fixed to the garnish, and the lid is opened and closed by a hinge structure. In this example, the lid is configured to be detachable from the garnish. In this example, as shown in the figure,
At the boundary between the housing portion 40 and the opening 41, the protrusion 4
2 and 43 are formed. One end of a lid 44 is fixed to one projection 42 by a clip 45, and the other end of the lid 44 is fixed to the other projection 43 by a clip 46. This is a state in which the opening 41 is closed by the lid 44. In such a state, when an outward force acts on the lid 44 artificially or by a load when the airbag 10 is deployed, the clips 45 and 46 are forcibly opened, and the lid 4
4 comes off the garnish 11. Therefore,
To prevent the lid body 44 from falling, for example, one of the clips 4
It is preferable to connect a string 47 between the garnish 11 and the ceiling attachment portion 15 or the ceiling auxiliary member 21 of the garnish 11.

In the present invention, by adopting such a configuration, the problem of variation in the relative position between the air bag grid and the garnish can be solved, so that the gap adjustment and surface matching between the two can be facilitated and the workability can be improved. Further, since the opening of the garnish can be used as a working hole, there is no need to separately provide a dedicated working hole for connecting the airbag and the wiring for energization. Furthermore, the garnish is firmly fixed to the ceiling using screws etc.,
The mounting strength is sufficiently secured. In this case, since the ceiling mounting portion of the garnish is provided on the ceiling side of the opening, when the opening is closed by the lid, it is obstructed and cannot be seen. Therefore, the conventional cap for hiding the screw is not required, and the appearance quality can be ensured with a small number of parts.

[0013]

According to the present invention, it is possible to provide an airbag mounting structure capable of securing mounting strength and appearance quality with a small number of parts.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of an airbag mounting structure according to the present invention.

FIG. 2 is a view showing a cross section taken along line A-A ′ of FIG. 1;

FIG. 3 is a view showing a B-B ′ section of FIG. 1;

FIG. 4 is a diagram showing an example of a structure for attaching a lid to a garnish.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Center pillar 2 Ceiling 10 Air bag 11 Garnish 12 Lid 13 Opening 14 Housing part 15 Ceiling mounting part

Claims (1)

[Claims] 1. An airbag mounted on a ceiling of a vehicle, a housing having an opening at a position facing the airbag and formed to surround the airbag, and an airbag extending from the housing and mounted on the ceiling. An airbag mounting structure, comprising: a garnish having a ceiling mounting portion to be mounted; and a lid attached to the garnish to close the opening so that the opening can be opened and closed and to cover the ceiling mounting portion.