JP2002316613A - Airbag, and cushioning tool for airbag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an airbag in which the shock of an inflation force during development is not burdened on an occupant body. SOLUTION: The airbag comprises a cushioning bag 1 for mitigating the shock of the inflation force during the development burdened on the occupant body, and a cushioning member 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airbag in which the impact of the inflation force during deployment does not burden the body. The present invention also relates to a cushioning device for an airbag which is used by being attached to an airbag so that the impact of the inflation force upon deployment does not burden the body.

[0002]

2. Description of the Related Art A conventional airbag is as shown in FIG. That is, the surface in contact with the human body at the time of deployment has a rounded surface without any irregularities. The force that pushes the human body forward in the event of a collision is eliminated by pressing the upper body with the deployed airbag. In some cases, the inflation rate of the airbag can be automatically adjusted to 100% or 70% according to the degree of impact due to the accident.

[0003]

A conventional airbag hits a human body in a large area without any irregularities which is hard and inflated instantaneously. Therefore, when the inflation force of the airbag has a more adverse effect on the body than an impact due to an accident. was there. In other countries, there have been accidents in which the child's neck is cut by the inflation force of the airbag. In addition, since the deployment speed of the airbag is faster than the speed at which a person reflexively closes the eyelids, the surface of the hard airbag may damage eye tissues such as the cornea and cause blindness. . Even in the case of a product having a function of automatically adjusting the expansion rate, the above-described problem occurs when the expansion rate is 10%.

[0004]

SUMMARY OF THE INVENTION An airbag and a cushioning device for an airbag according to the present invention solve the above-mentioned problems and are as follows. First, the airbag according to the present invention is provided with a cushioning bag 1 for reducing the impact on the body due to the inflation force during deployment. The buffer bag 1 is formed integrally with the airbag body 5, and the internal space is also continuous with the airbag body 5 through the plurality of ventilation holes 4.

[0005] Alternatively, there is provided a cushioning member 2 mainly composed of an elastic material for reducing the impact on the body.
The cushioning member 2 is rich in elasticity such as polyester cotton and wool,
A bag enclosing a material excellent in elastic recovery force may be provided at an optimum position on the airbag body 5 or the cushioning bag 1, or a non-scattering elastic material such as a sponge or foaming urethane may be used. It may be fixed on the bag body 5 or the buffer bag 1.

[0006] Next, the cushioning device for an airbag according to the present invention is used by being attached to the surface of a conventional airbag having no irregularities on its surface. It is composed of a cushioning member 2 made of a conductive material.

[0007]

The airbag according to the present invention is housed and installed in an airbag storage of an automobile in the same manner as a conventional airbag. The shock-absorbing bag 1 or the shock-absorbing member 2 provided in the airbag deployed by the impact of the accident prevents the impact of the inflation force of the airbag from directly reaching the body.

The cushioning device for an airbag according to the present invention is used by being attached to a conventional airbag having no irregularities on its surface. The operation in such a case is similar to that of the airbag according to the present invention.

[0008]

Embodiment 1 Embodiment 1 of the present invention will be described with reference to FIG. FIG. 1 is a perspective sectional view of a main part showing the first embodiment. An inverted U-shaped buffer bag 1 having an inner space continuous with the main body 5 is provided in two rows on a main body 5 having a thickness smaller than that of a conventional airbag. Inside the airbag, a shape-preventing member 3 provided with a plurality of ventilation holes 4 for inflow of gas for deploying the buffer bag 1 is provided. When the airbag is deployed, the shock applied to the body is reduced by bending the buffer bag 1. In addition, the cushioning member 2 formed of a bag enclosing polyester cotton provided beside the cushioning bag 1 absorbs impact and reduces the burden on the face. The cushioning member 2 is optimally made of a material having an excellent elastic recovery force capable of immediately restoring elasticity when the airbag is deployed even if the cushioning member 2 has been compressed and stored for a long time.

Embodiment 2 Embodiment 2 will be described with reference to FIG. FIG. 2 is a perspective sectional view of a main part showing the second embodiment. The present embodiment is an airbag intended to reduce the impact on the face, mainly the eyes. On the main body 5, a cushioning member 2 made of a lump of foamable urethane is provided. Even when the eye is opened when the airbag is deployed, the surface of the foamable urethane in a soft state has a very low possibility of damaging eye tissue such as the cornea.

Embodiment 3 Embodiment 3 will be described with reference to FIG. FIG. 3 is a perspective sectional view showing a main part of the third embodiment. This embodiment is an airbag intended to protect the body. On the main body 5 of the airbag, inverted U-shaped buffer bags 1 having different heights are provided in three rows in parallel. During deployment of the airbag, the body collides first with the tallest buffer bag 1 in the center and then with the two lower buffer bags 1. The shock-absorbing bag 1 absorbs an impact because of its easily bending shape, and does not give a strong impact to a human body.

Embodiment 4 Embodiment 4 will be described with reference to FIG. FIG. 4 is a perspective sectional view showing a main part of a fourth embodiment. This embodiment is intended to protect the body. On the main body 5 of the airbag, there is provided a buffer bag 1 whose cross section is formed in half the shape of a crescent moon. In the main body 5 at the position where the buffer bag 1 is provided,
A plurality of ventilation holes 4 are provided so that gas for inflating the main body 5 flows into the buffer bag 1.

Embodiment 5 Embodiment 5 will be described with reference to FIG. FIG. 5 is a perspective sectional view showing a main part of a fifth embodiment. This embodiment is intended to protect the entire upper body. On the main body 5 of the airbag, inverted U-shaped buffer bags 1 are provided in four rows in parallel. And
Above the buffer bag 1 is a buffer member 2 made of a bag in which wool is sealed.
Is stuck. The bag of the buffer member 2 is provided with a vent hole 4 through which air enters and exits.

Embodiment 6 Embodiment 6 will be described with reference to FIG. FIG. 6 is a perspective sectional view showing a main part of the sixth embodiment. This embodiment is intended to protect the entire upper body. A drum bridge-shaped buffer bag 1 is provided on the main body 5 of the airbag, and a foaming urethane buffer member 2 is fixed to the surface of the buffer bag 1.

Embodiment 7 Embodiment 7 will be described with reference to FIG. FIG. 7 is a perspective sectional view showing the seventh embodiment. In this embodiment, the cushioning member 2 is made of a bag in which wool is sealed. The bag is provided with a vent hole 4. It is used by being fixed to the conventional airbag shown in FIG.

Eighth Embodiment An eighth embodiment will be described with reference to FIG. FIG. 8 is a perspective sectional view showing the eighth embodiment. In this embodiment, the cushioning member 2 is made of a sponge having a wavy surface. Used by sticking to a conventional airbag.

[0016]

When the airbag according to the present invention is used, the inflation force generated when the airbag is deployed does not give a strong impact to the body. Therefore, the possibility of injury due to the inflation force is extremely low and safety is achieved. The same applies to the case where the airbag cushioning device according to the present invention is used by being attached to a conventional airbag.

[Brief description of the drawings]

FIG. 1 is a perspective sectional view showing a main part of a first embodiment.

FIG. 2 is a perspective sectional view showing a main part of a second embodiment.

FIG. 3 is a perspective sectional view showing a main part of a third embodiment.

FIG. 4 is a perspective sectional view showing a main part of a fourth embodiment.

FIG. 5 is a perspective sectional view showing a main part of a fifth embodiment.

FIG. 6 is a perspective sectional view showing a main part of a sixth embodiment.

FIG. 7 is a perspective sectional view showing a seventh embodiment.

FIG. 8 is a perspective sectional view showing an eighth embodiment.

FIG. 9 is a perspective sectional view showing a main part of a conventional airbag.

[Explanation of symbols]

 1 buffer bag 2 buffer member

Claims (3)

[Claims] 1. An airbag provided with a cushioning bag (1) for reducing the impact on the body due to the inflation force during deployment. 2. A cushioning member (2) mainly composed of an elastic material for mitigating a shock to a body due to an expansion force at the time of deployment.
The airbag provided with. 3. A cushioning device for an airbag, comprising a cushioning member (2) made of a resilient material for reducing the impact on the body due to the inflation force during deployment, which is used by being attached to the surface of a conventional airbag. .