JPH06156176A - Air bag equipment for seat next to drivers seat - Google Patents

Abstract

PURPOSE:To provide an air bag equipment for the seat next driver's seat where a folded air bag can be easily inserted into a holding member. CONSTITUTION:A module cover 14 is mounted on the front surface of a main container 12, and a back plate 16 is mounted on the rear surface. An inflator 18, an air bag 20 and a wrapping cloth 22 are provided on the back plate. The wrapping cloth is positioned on the rear side of the back plate so as to surround the back plate first. In this condition, the air bag is folded on the back plate. The wrapping cloth is pulled to the front surface side of the back plate so as to wrap this air bag. Then, a tongue-shaped part 26 is laminated to the front surface of the folded air bag, and the tongue-shaped part 24 is laminated on this tongue-shaped part 26. The wrapped air bag is inserted into a main container together with the back plate, and a flange part 34 of the main container is fixed by a bolt 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger airbag device which is provided in a vehicle and is deployed in the event of a vehicle collision to protect an occupant in the passenger seat.

[0002]

2. Description of the Related Art In this type of passenger airbag device, an airbag and an inflator are attached to a holding member (for example, a container), and a module cover is attached so as to cover the airbag. When a vehicle collides, the inflator operates and the airbag deploys. The module cover is pushed toward the inside of the room by being pushed by the expanding airbag, and the airbag is greatly expanded toward the inside of the room to protect the occupant.

[0003]

This type of passenger airbag device must be firmly fixed to the vehicle, and the container must be constructed so as not to be deformed by the gas pressure of the inflator. , Containers are often made of thick metal. Further, since the passenger airbag has a large airbag capacity, a large amount of labor is required at the time of assembling the airbag device (particularly, putting the folded airbag into the container).

That is, when the folded airbag is to be stored in the container, the airbag is completely delivered into the container by changing the direction of the container many times, and the work of moving a heavy container by hand is performed. There are many. For this reason, a large amount of labor is required when the airbag is loaded, and there are problems such as severe work fatigue and low assembly efficiency.

An object of the present invention is to provide an airbag device for a passenger seat, into which a folded airbag can be easily inserted inside a holding member.

Another object of the present invention is to improve the durability of the airbag.

[0007]

According to the airbag apparatus for a passenger seat of the present invention, a folded airbag is held by a holding member, and a module cover covering the airbag is attached to the holding member. In the passenger seat airbag apparatus, the holding member has a main container having a front surface and a rear surface opened and the module cover attached to the front surface, and a back plate attached to the rear surface of the main container. The back plate is provided with the folded airbag and a covering cloth for covering the airbag, and the covering cloth has a base end side fixed to the back plate. , On the tip side,
When the airbag is in a folded state, it is interposed between the airbag and the module cover, and when the airbag is deployed, a tongue-shaped portion is provided which expands in front of the holding member together with the airbag. It is what

[0008]

In the passenger airbag device of the present invention,
After folding the airbag attached to the back plate, the airbag is wrapped with a wrapping cloth, and then the wrapped airbag can be put into the main container for assembly. Therefore, the folded airbag does not lose its shape, and it is not necessary to move the heavy main container many times, so that the work effort can be reduced.

Further, in the main container, since the wrapping cloth is present between the inner surface of the module cover and between the inner surface of the main container and the airbag, direct rubbing between the airbag and the main container or the module cover is prevented. It This surely prevents the airbag from being worn out, and the durability of the airbag is significantly improved.

[0010]

Embodiments will be described below with reference to the drawings. 1 to 5 show an airbag device according to a first embodiment of the present invention, FIG. 2 is a schematic perspective view showing the entire configuration before deployment of an airbag, and FIG. Second
Sectional drawing which shows the detailed structure which follows the II line of a figure, FIG. 3,
4 and 5 are assembled perspective views.

In this airbag device 10, a module cover 14 is attached to the front surface of a main container 12 which constitutes a part of a holding member.

A back plate 16 is attached to the back surface of the main container 12. The back plate 16 is provided with an inflator 18, an airbag 20, and a covering cloth 22. When the inflator 18 is actuated, the airbag 20 starts to deploy and the module cover 14 opens forward as indicated by an arrow 100 in FIG. Then, the airbag 20 is largely deployed in the vehicle compartment.

As shown in FIGS. 3 and 4, the covering cloth 22 has a tubular portion 2
4 and tongues 26 and 28. One end side of the tubular portion 24 is fixed to the back plate 16 via the mounting frame 30, and tongue-shaped portions 26 and 28 are provided on the other end side. The airbag 20 is also fixed to the back plate 16 by the mounting frame 30. Reference numeral 32 is a rivet for fixing the mounting frame 30 to the back plate 16.

As shown in FIG. 3, the encapsulating cloth 22 is initially positioned behind the back plate 16 so as to surround the back plate 16. In this state, the airbag 20 is folded on the back plate 16. An envelope cloth 22 is pulled out to the front side of the back plate 16 as shown by an arrow 200 so as to enclose the folded airbag 20.
Then, the tongue portion 26 is overlapped with the front surface of the folded airbag 20 as indicated by an arrow 300, and then the arrow 400 is indicated.
The tongue 28 is superposed on the tongue 26 as described above.

The air bag 20 thus wrapped with the wrapping cloth 22 is inserted into the main container 12 together with the back plate 16 as indicated by an arrow 500 in FIG. Then, the flange portion 34 of the back plate 16 is fixed to the bolt 36.
And fix it to the main container 12.

In this passenger seat airbag device 10, the folded airbag 20 is covered with the covering cloth 22, so that when the airbag 20 is inserted into the main container 12, the airbag 20 is not covered. The airbag 20 can be inserted into the main container 12 very easily without losing its shape. Moreover, when the airbag 20 is folded, the airbag 20 is connected only to the back plate 16 and not to the heavy main container 12, so that the work effort for changing the direction of the back plate 16 is extremely small. . Therefore, the airbag 20 can be folded very easily.

In the passenger airbag apparatus 10 completed by inserting the airbag 20 into the main container 12, a wrapping cloth 22 is provided between the airbag 20 and the inner surface of the main container 12 and the inner surface of the module cover 14. Because of the interposition, the airbag 20 does not directly rub against the main container 12 and the module cover 14, the abrasion of the airbag 20 is prevented, and the durability of the airbag 20 becomes high.

In the above embodiment, two pieces of tongue portions 26 and 28 are provided on the wrapping cloth 22, but one piece, three pieces, four pieces or more of tongue-like portions are provided on the wrapping cloth. May be.

It should be noted that the airbag 20 is the inflator 18
When the air bag 20 is expanded by the gas ejected from the air bag 20, the air bag 20 spreads forward by pushing away the tongue-like portion. It is preferable that the two pieces of tongue portions 26 and 28 extend from the opposite sides of the tubular portion 24 of the packaging cloth 22.

[0020]

As described above, the airbag apparatus for a passenger seat according to the present invention can be assembled quickly, the labor required for folding the airbag is reduced, and the assembling efficiency is significantly improved.

In the assembled passenger airbag device, there is no rubbing between the main container or module cover and the airbag, and the durability of the airbag is extremely high.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a passenger seat airbag device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a passenger seat airbag apparatus according to the embodiment.

FIG. 3 is a perspective view illustrating a method of wrapping an airbag.

FIG. 4 is a perspective view illustrating a method of wrapping an airbag.

FIG. 5 is an assembled perspective view of an airbag device for a passenger seat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Air bag apparatus 12 Main container 14 Module cover 16 Back plate 18 Inflator 20 Air bag 22 Enveloping cloth 24 Cylindrical part 26,28 Tongue-shaped part

Claims (1)

[Claims] 1. A passenger seat airbag apparatus in which a folded airbag is held by a holding member, and a module cover for covering the airbag is attached to the holding member. And a main container having a rear surface opened and having the module cover attached to the front surface, and a back plate attached to the rear surface of the main container, the airbag being folded on the back plate. When,
A covering cloth for covering the air bag is attached, and the covering cloth has a base end side fixed to the back plate and a tip end side in which the air bag is folded when the air bag is folded. Interposed between the bag and the module cover,
An airbag device for a passenger seat, characterized in that a tongue-shaped portion is provided in front of the holding member together with the airbag when the airbag is deployed.