JPH08108819A - Front passenger seat side air bag module - Google Patents

Abstract

PURPOSE: To provide an air bag module whose structure is simple and which is light in weight, excellent in shock absorbing performance and exhibits an impression of high quality. CONSTITUTION: A front passenger seat side air bag module 1 has an air bag 2, inflator 3, inflator case 4, which contains the inflator 3 therein and is fixed to a car body component member 7 through a bracket 4a, door member 5 comprising an external surface 5a and extension section 5b and separation member 9 which separates the air bag 2 and inflator 3. The air bag 2 contained folded in the space comprising the external surface section 5a and extension section 5b presses the back face of the external surface 5a.

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 air bag on a passenger side of an automobile.

[0002]

2. Description of the Related Art Conventionally, a structure shown in FIG. 4 is known as a structure of an airbag on the passenger side of an automobile. In the same figure, the airbag module 51 includes an airbag 5
2, inflator 53, inflator case 54,
The door member 55 is mainly configured, and is attached to the vehicle body component member 57 by a bolt 56. In the airbag module 51, when the vehicle receives an impact, the inflator 53 generates high-pressure gas, and the airbag 52 receiving the high-pressure gas rotates the door member 55 in the arrow direction to the right in the figure. It is configured to inflate and deploy toward the passenger seat.

In the conventional door member 55, an outer surface portion 55a facing the passenger seat is made of PVC, and an aluminum plate 58 and a urethane 59 are incorporated inside. With this configuration, when the outer surface portion 55a is pushed from the passenger side, the urethane 59 provides a high-class soft feeling, and the aluminum plate 59 absorbs the impact when performing the impact test. ing.

[0004]

However, in the above-mentioned airbag module, there are problems that the cost is increased and the weight is increased because the number of parts is large and the structure is complicated. Therefore, as shown in FIG. 5, an airbag module mainly composed of an airbag 62, an inflator 63, an inflator case 64, and a door member 65, and a space 69 provided between the back surface of the door member 65 and the airbag 62. 61 have been proposed. In this airbag module 61, the door member 65 is made of a resin material such as an olefin elastomer, and a notch 65b is formed on the back surface side of the door member 65, and the door member 65 is broken from the notch 65b to assist the airbag 62. It is configured to inflate and deploy to seats. In the airbag module 61 configured in this way, the structure is simple and the weight can be reduced, but when the outer surface portion 65a of the door member 65 is pushed from the passenger side, the door member 65 is easily deformed due to the space 69. However, there is a problem that the luxury feel is impaired.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems, to provide an airbag module having a simple structure, a light weight, excellent shock absorption and a high-grade feeling.

[0006]

According to the first aspect of the present invention,
An airbag that is deployed when a vehicle collides and protects an occupant, an inflator that injects high-pressure gas to inflate and deploy the airbag, the inflator is housed inside, and is fixed to a vehicle body component through a bracket. An inflator case, and an outer surface part that constitutes a part of the passenger seat side instrument panel by engaging the peripheral edge of the opening formed in the passenger seat side instrument panel, and the back surface of the outer surface part. Is integrally formed with, and has an extending portion fixed to the inflator case,
In a passenger side airbag module including a door member that stores the airbag in a space formed by the outer surface portion and the extension portion, the airbag and the inflator are provided inside the inflator case. It is characterized in that a separating member is provided for separating, and the airbag accommodated by being folded in the space presses the back surface of the outer surface portion.

According to a second aspect of the present invention, in the passenger side airbag module according to the first aspect, the separating member is formed so as to support the airbag during normal use, and the separating member is provided on the outer surface portion. It is characterized in that it is formed so as to be able to absorb the impact force transmitted through the airbag when the impact force is applied.

According to a third aspect of the invention, in the passenger side airbag module according to the first aspect, the separating member further has an outlet for the high pressure gas.

According to a fourth aspect of the present invention, in the passenger side airbag module according to the first aspect, the separating member further comprises a sheet metal member.

According to a fifth aspect of the present invention, in the passenger side airbag module according to the first aspect, the folded airbag further includes the airbag when the impact force acts on the outer surface portion. Is configured to be able to absorb the impact force acting on the door member by being compressed and deformed.

[0011]

According to the invention described in claim 1, since the separating member for separating the airbag and the inflator presses the airbag against the back surface of the outer front portion of the door member with a predetermined pressure, the passenger seat Even if the outer surface of the door member is pressed from the side, the door member is not easily deformed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a passenger side airbag module adopting an embodiment of the present invention. In the figure,
The airbag module 1 provided inside the passenger side dashboard of the vehicle includes an airbag 2, an inflator 3, an inflator case 4, a door member 5, and a separating member 9.
Etc., and is fixed to the vehicle body constituent member 7 with bolts 6, 6 and pins 8.

The airbag 2 has a well-known structure in which fibers or the like are woven into a resin and is reinforced, and is housed inside a door member 5 described later. An inflator 3 that inflates and deploys the high-pressure gas to the airbag 2 to inflate and deploy the high-pressure gas is disposed on the vehicle body inner side of the airbag 2. The inflator 3 has a well-known configuration that generates high-pressure gas based on a signal from a sensor (not shown) that detects an impact on the vehicle, and is fixed to the inflator case 4.

The inflator case 4 is open on the front side of the vehicle, and the inflator 3 is fixedly installed on the closed rear side of the vehicle. A bracket 4a for attaching the inflator case 4 to the vehicle body component 7 is fixed to the outside of the inflator case 4 on the vehicle rear side, and the inflator case 4 is fixed by bolts 6, 6 and pins 8 via the bracket 4a. It is fixed to the vehicle body component 7.

A door member 5 having an airbag 2 housed therein is attached to the outside of the opening of the inflator case 4 on the front side of the vehicle. The door member 5 is composed of an outer surface portion 5a and an extension portion 5b, and the outer surface portion 5a is formed of a resin material such as an olefin elastomer having a good feel and elasticity. The peripheral portions 5d and 5d of the outer surface portion 5a are the peripheral portions 10a and 10a of the passenger side instrument panel 10.
5b that engages with the outer surface 5a and is formed integrally with the outer surface 5a.
Are attached to the inflator case 4 with bolts 11 and 11. A cutout portion 5c for breaking the outer surface portion 5a when the airbag 2 is inflated and deployed toward the passenger seat is formed in a lower portion of the back surface of the outer surface portion 5a.

Inside the inflator case 4,
A separating member 9 that separates the airbag 2 from the inflator 3 on the front side of the vehicle with respect to the installation position of the inflator 3.
Is attached. As shown in FIG. 2, the separating member 9 is a plate material in which a plurality of vertically extending air outlets 9a are formed, and the side members in the longitudinal direction and the peripheral edges of the air outlets 9a in the longitudinal direction are bent vertically. Each part 9b is formed.
Further, mounting portions 9c and 9d are integrally formed with the separating member 9 above and below the separating member 9, respectively.
Are attached by screws, adhesives, welding, etc.
d is fixed inside the inflator case 4.

In the airbag module 1 described above, the door member 5 is attached to the inflator case 4 by the bolts 11,
When fixing with 11, the outer surface portion 5a having elasticity is fixed with a predetermined pressure by the airbag 2 housed in the space between the back surface of the outer surface portion 5a and the separating member 9. . With such a configuration, the outer surface portion 5
Since a receives the pressure of the airbag 2 from its rear surface and the outer surface portion 5a is not easily deformed even if the outer surface portion 5a is pushed from the passenger side, the high-class feeling is not impaired.

Further, even when performing an impact test,
Since the standing member 9b is formed on the separating member 9, the applied impact is absorbed by the outer surface portion 5a, the airbag 2 and the separating member 9 as shown in FIG.

[0019]

According to the first aspect of the present invention, the separating member for separating the airbag and the inflator presses the airbag against the back surface of the outer front portion of the door member with a predetermined pressure, and the passenger seat side. Even if the outer surface of the door member is pressed by the door member, the door member is not easily deformed, so that it is possible to reduce the weight and the cost without impairing the sense of quality.

[Brief description of drawings]

FIG. 1 is a side sectional view of an airbag module that employs an embodiment of the present invention.

FIG. 2 is a perspective view of a separating member illustrating an embodiment of the present invention.

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

FIG. 4 is a side sectional view showing a conventional airbag module.

FIG. 5 is a side sectional view showing another conventional airbag module.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Airbag module 2 Airbag 3 Inflator 4 Inflator case 4a Bracket 5 Door member 5a Outer surface part 5b Extending part 7 Car body constituent member 9 Separation member 9a Air outlet 10 Passenger side instrument panel

Claims (5)

[Claims] 1. An airbag that is deployed when a vehicle collides and protects an occupant, an inflator that injects high-pressure gas to inflate and deploy the airbag, an inflator housed inside, and a vehicle body through a bracket. An inflator case fixed to the component member, and an outer surface portion that constitutes a part of the passenger seat side instrument panel by engaging the peripheral edge with the peripheral edge of the opening formed in the passenger seat side instrument panel, The airbag is housed integrally in the back surface of the outer surface portion, has an extension portion fixed to the inflator case, and stores the airbag in a space formed by the outer surface portion and the extension portion. In a passenger side airbag module including a door member, the airbag and the inflator are separated from each other inside the inflator case. A passenger seat side airbag module, characterized in that a separating member is provided, and the airbag accommodated by being folded in the space presses the back surface of the outer surface portion. 2. The separating member is formed so as to support the airbag during normal use, and is transmitted through the airbag when an impact force is applied to the outer surface portion. The passenger side airbag module according to claim 1, wherein the airbag module is formed so as to absorb air. 3. The passenger side airbag module according to claim 1, wherein the separating member has an outlet for the high-pressure gas. 4. The passenger side airbag module according to claim 1, wherein the separating member is a sheet metal member. 5. The folded airbag can absorb the impact force acting on the door member due to the compressive deformation of the airbag when the impact force acts on the outer surface portion. It is constituted, It is characterized by the above-mentioned.
Airbag module on the passenger side as described.