JPH08310335A - Air bag device - Google Patents

Abstract

PURPOSE: To primarily protect a head part against side collision of a car. CONSTITUTION: In an air bag device, a weather strip 1 which is provided with a hollow seal part 2 brought in contact elastically with a closed door glass G is installed on the inner periphery of a door opening part P of a body panel of a car, and an air bag 6 is installed under contraction in a space 5 between the weather strip and welts 4 installed in parallel with each other so that they are brought in contact with the top end of the cabin side lip 3 of the weather strip 1. Also the contracted air bag 6 is expanded downward pushing back the cabin side lip 3 of the weather strip 1 by an impact given to the side of the car. Then the expanded air bag is provided between the head part of an occupant and a door glass G or body panel P for protection of the head part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air bag device for an automobile, and more particularly to a case where a side portion of a vehicle body has a collision.

[0002]

2. Description of the Related Art As a conventional air bag device of this type, there is one in which an air bag is provided below a waist line on a side portion of a vehicle body such as a door body.

[0003]

However, there is a problem that even if the airbag is inflated at the time of a collision, it can be protected mainly below the waist line of a person, but the head cannot be sufficiently protected. Therefore, in view of the above conventional problems, it is an object of the present invention to provide an airbag device capable of mainly protecting the head against a collision with a side part of a vehicle body.

[0004]

In order to achieve the above object, the structure of the present invention is, as shown in FIGS. 1 and 2, a door closed at the inner periphery of a door opening P of an automobile body panel. A weather strip 1 having a hollow seal portion 2 elastically contacting the glass G is attached, and the weather strip 1
1. An airbag device in which an airbag 6 is compressed in a space 5 between a welt 4 and the welts 4, which are arranged side by side so as to contact the tip of the indoor lip 3 of the airbag 6.
Is pushed to the side lip 3 of the weather strip 1 by an impact received on the side of the vehicle and inflated downward, and the inflated airbag 6 is between the occupant's head H and the door glass G or body panel P. It is designed to protect the head H by interposing on the above.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1, 1 is a weather strip,
As shown in FIG. 4, the mounting base portion 1a is fixed by being fitted into the retainer R provided on the outer side of the inner periphery of the door opening portion P of the body panel of the hard top vehicle. The weather strip 1 forms a hollow seal portion 2 and an indoor-side lip 3 which elastically contact with a closed door glass G shown by a phantom line. A welt 4 is sandwiched by a flange F projecting on the inner side of the inner periphery of the door opening P, and the welt 4 is juxtaposed such that the tip of the inner lip 3 abuts on the top thereof. ing. In the space 5 formed between the weather strip 1 and the welt 4, a bag-shaped airbag 6 is folded and contracted as shown in a stitch pattern. The airbag 6 is disposed along the inner circumference of the door opening P as shown in FIG.

[0006] The airbag 6 is connected to a shock sensing device (not shown) and a gas generator for instantly enclosing a large amount of gas in the bag. Therefore, when a collision occurs on the side of the vehicle, the impact sensing device and the gas generating device operate,
Gas is instantly enclosed in the airbag 6, and the airbag 6 pushes away the indoor lip 3 of the weather strip 1 and expands downward. As a result, the inflated airbag 6 ′ as shown in FIG. 3 can be interposed between the occupant's head H and the door glass G or the body panel P to protect the head H. Further, the weather strip 1 and the welt 4 may be integrally molded or separately formed.

[0007]

As described above, in the airbag device of the present invention, the airbag is disposed between the weather strip and the welt along the inner circumference of the door opening of the vehicle, so that the side portion of the vehicle is provided. When a collision occurs in the vehicle, the airbag is instantly inflated downward, and mainly the head of the occupant can be protected against the door glass and the body panel.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of the airbag device of the present invention taken along the line AA of FIG.

FIG. 2 is a side view of the same.

FIG. 3 is a cross-sectional view showing an operating state of the above.

FIG. 4 is a side view of the hardtop vehicle to which the same airbag is mounted.

[Explanation of symbols]

 1 Weather Strip 1a Mounting Base 2 Hollow Seal 3 Indoor Lip 4 Welt 5 Space 6 Airbag P Door Opening G Door Glass H Head

Claims (1)

[Claims] 1. A weather strip having a hollow seal portion elastically contacting a closed door glass is attached to an inner periphery of a door opening of a body panel of an automobile, and the weather strip is arranged so as to be in contact with a tip of an indoor side lip of the weather strip. An air bag device in which an air bag is compressed in a space between the installed welt and the inside of the weather strip due to the impact of the compressed air bag laterally received by the automobile. An airbag device characterized in that the lip is pushed away and inflated downward, and the inflated airbag is interposed between the occupant's head and the door glass or body panel to protect the head.