JPH061021U - Automotive airbag device support structure - Google Patents

Abstract

(57) [Summary] [Purpose] In vehicles equipped with airbag devices,
The assembling workability and the assembling accuracy of the passenger seat airbag device are improved, and the variation in the positional accuracy between the airbag device and the beam which is the vehicle body side member can be absorbed. [Structure] An instrument panel 1 having a hollow portion inside is configured by a pad member 2 and an instrument panel body 3, and an air bag device 4 is fixed to the instrument panel body 3 and assembled in the hollow portion of the instrument panel 1, On the beam bracket 5a fixed to the beam 5, the airbag device fixing portion of the instrument panel body 3 was floatingly supported via an elastic material 5b such as foam rubber.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for supporting an air bag device of an automobile, particularly a structure for supporting an air bag device for a passenger.

[0002]

[Prior art]

 As one of the safety measures against a collision of a car, an airbag device has been conventionally used in which the inflator is actuated during a collision to inflate the airbag, and the inflated airbag receives the head of an occupant who is leaning forward due to the collision. More developed.

An airbag device for a passenger seat is generally attached to an instrument panel portion in front of a passenger seat. Conventionally, as shown in FIG. 3, a large hole is formed in a pad / instrument panel body a. The seat surface b is opened, and the seat surface b has a structure in which an airbag device c (an inflator and a folded airbag are housed in the air bag housing and the upper portion of the air bag housing is covered with a lid. Is temporarily fixed, and the main fixing is carried out via an adjustable bracket f to a bracket e of a beam d passing through the lower part of the instrument panel in the left and right directions. At the time of a collision, the inflator of the airbag device is actuated, the generated gas flows into the airbag, and the airbag pushes the lid c'open to inflate and project above the instrument panel. The beam d receives a reaction force such as an airbag inflation due to the above (see, for example, Japanese Utility Model Laid-Open No. 2-25347). In FIG. 3, g is a ventilation duct and h is a defroster duct.

[0004]

[Problems to be solved by the device]

 As described above, in the conventional one in which the airbag device is temporarily fixed to the instrument panel and then permanently fixed to the beam which is the vehicle body side member, the parting line between the instrument panel and the lid of the airbag device is separated. It requires a very high degree of accuracy in the adjustment, and the fixing position of the airbag device to the beam is adjusted by providing a complex bracket f that can be adjusted vertically, horizontally, and back and forth. There is a problem that it is difficult to secure the position accuracy. Further, the fixing of the airbag device c to the beam d is a work of adjusting and fixing in the main line of vehicle manufacturing, which has a problem that workability is poor and inefficient.

The present invention mainly aims to address the above-mentioned conventional problems.

[0006]

[Means for Solving the Problems]

 According to the present invention, an instrument panel having a hollow portion inside is constructed by a pad member and an instrument panel main body, and an airbag device for a passenger seat is fixed to the instrument panel main body, assembled in the hollow portion, and fixed to a vehicle body member. It is characterized in that the airbag device fixing portion of the instrument panel body is floatingly supported via an elastic material such as rubber on a beam passing through the lower portion of the instrument panel body in the vehicle width direction.

[0007]

[Action]

 As described above, by fixing the passenger airbag device to the instrument panel body and assembling it in the hollow part of the instrument panel, the assembling workability and the assembling accuracy of the airbag device are improved, and the instrument device is installed. The quality of the instrument panel assembly can be improved, and the floating support of the beam and instrument panel body makes it possible to easily absorb variations in relative position and also to absorb instrument panel vibration. .

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

In FIGS. 1 and 2, reference numeral 1 denotes an instrument panel, and the instrument panel 1 is configured to have an inner hollow by connecting a front and rear portion of a pad member 2 forming a front surface and an instrument panel body 3 forming a bottom surface. To be done. An opening 2a is formed in the pad member 2, and a seating surface 2b for mounting the airbag device 4 is formed on the peripheral edge of the opening 2a. A rib 2c is provided so as to project downward at the front of the opening 2a of the pad member 2, and the lower end edge of the rib 2c abuts the instrument panel body 3 via an elastic material so that the hollow portion of the instrument panel is moved forward. The defroster duct 1a and the ventilation duct 1b at the rear are partitioned and formed. The airbag device 4 is similar to a conventionally known one, in which an inflator 42 and a folded airbag 43 are housed in an airbag storage body 41 having an opening at an upper side, and an upper opening of the airbag storage body 41 is closed by a lid 44. The structure is closed by. The airbag device 4 is a bracket in which the periphery of the lid 44 is joined to the seat surface 2b formed on the periphery of the opening 2a of the pad member 2 through an elastic seal member and fixed near the bottom of the airbag container 41. By mounting 45 on the instrument panel body 3 and tightening and fixing it with bolts or the like, it is mounted in the ventilating duct 1b.

Reference numeral 5 denotes a beam having both left and right ends fixed to the vehicle body member and passing through the lower portion of the instrument panel body 3 in the vehicle width direction. The beam 5 substantially conforms to the shape of the instrument panel body 3 near the airbag device fixing portion. A beam bracket 5a having a shape to be fixed is fixed, and the operating reaction force axis of the airbag device 4 is fixed to the air bag device fixing portion of the instrument panel body 3 via the elastic material 5b such as foam rubber on the beam bracket 5a. The beam 5 is mounted and supported so as to substantially coincide with the center of the airbag, and the beam 5 receives the reaction force when the airbag device is activated, via the instrument panel body 3 and the elastic member 5b while absorbing the shock.

Reference numeral 6 is a pocket portion provided in the lower portion of the instrument panel 1, 7 is a pocket door, 8 is a latch device for the pocket door 7 including a hook 8a and a striker 8b, and 9 is a striker fixed to the instrument panel body 3. It is for mounting the striker 8b with a bracket.

As described above, a structure in which the pad member 2 and the instrument panel body 3 constitute the instrument panel 1 having a hollow interior, and the air bag device 4 is fixed in the ventilation duct 1b formed in the hollow portion. Since the airbag device 4 can be assembled to the instrument panel 1 in advance, the assembly workability and the assembly accuracy of the airbag device can be improved, and the opening 2a of the pad member 2 and the airbag can be improved. The accuracy of the relationship with the lid 44 of the bag device is improved, and the quality of the instrument panel assembly can be improved.

Further, since the instrument panel body 3 has a structure in which it is floatingly supported by the beam 5 via the elastic member 5a, the positional accuracy variation between the airbag device fixing portion of the instrument panel body 3 and the beam bracket 5a is elastic. It can be absorbed by the material 5b and can also absorb the vibration of the instrument panel 1. Furthermore, it is possible to absorb the reaction force shock at the time of operating the airbag device 4 and to transmit it softly to the beam 5, which is also advantageous in terms of beam intensity.

Since the operation mode of the airbag device 4 is the same as that of the conventional device, detailed description thereof will be omitted.

In the present invention, the specific configuration of the airbag device 4 itself is not limited to that shown in the illustrated embodiment, and any conventionally known structure can be adopted.

[0016]

[Effect of device]

 As described above, according to the present invention, the assembling workability and the assembling accuracy of the passenger airbag device can be improved, and the quality of the instrument panel assembly can be improved, and the instrument panel body can be improved. Variations in the positional accuracy between the air bag device fixed part and the beam, which is the vehicle body side member, are absorbed by the floating support through the elastic material, which absorbs the vibration of the instrument panel and the reaction force shock when the air bag device is activated. It is also possible to reduce the absorption of water, and since the adjustment bracket with a complicated structure as in the past is not required, the space under the instrument panel can be increased and the volume of the pocket can be expanded. Therefore, in combination with the cost reduction, it can bring great effects in practical use.

[Brief description of drawings]

FIG. 1 is an external perspective view showing an example of an instrument panel to which the present invention is applied.

2 is a sectional view taken along the line AA of FIG. 1, showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing an example of a conventional airbag support structure.

[Explanation of symbols]

 1 Instrument Panel 1a Defroster Duct 1b Ventilation Duct 2 Pad Member 2a Opening 2b Seat Surface 3 Instrument Panel Main Body 4 Airbag Device 5 Beam 5a Beam Bracket 5b Elastic Material 41 Airbag Storage 44 Lid 45 Bracket

Claims (1)

[Scope of utility model registration request] 1. An instrument panel having a hollow inside is formed by a pad member that is a surface of an instrument panel and an instrument panel body that is a bottom surface of the instrument panel. Attached to the main body and assembled in the hollow portion, fixed to the vehicle body member, on the beam passing through the lower portion of the instrument panel body in the vehicle width direction, the airbag device fixing portion of the instrument panel body is interposed via an elastic material such as rubber. A structure for supporting an air bag device of an automobile, which is supported in a floating manner.