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Resin airbag

An airbag and resin technology, which is applied in vehicle safety arrangement, pedestrian/passenger safety arrangement, transportation and packaging, etc. It can solve the problems of easy deviation of the depth and position of folds, thickness and dimension deviation, etc.

Inactive Publication Date: 2011-04-27
TOYODA GOSEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the resin airbag is likely to cause the following situation, that is, the opening on the bent portion causes air leakage.
[0006] In addition, in the case of wrinkling, the depth and position of the wrinkle tend to shift, and as a result, the thickness dimension of the resin airbag after inflation may be shifted for each airbag, which is not preferable.

Method used

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  • Resin airbag
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Examples

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Embodiment Construction

[0070] With reference to the drawings, preferred embodiments of the present invention are described below. However, the present invention is not limited to the described embodiments. All changes and equivalent forms of the appended claims are included in the scope of the claims.

[0071] The airbag device S1 using the resin airbag (hereinafter referred to as the airbag) 20 of the first embodiment is as figure 1 As shown, it is mounted in the seat portion 3 of the vehicle seat 1 having the backrest portion 2 and the seat portion 3. In addition, the airbag device S1 is an airbag device for preventing sliding down. When the front of the vehicle collides, the front portion 3a of the seat portion 3 is raised upward, even if the passenger M sitting on the seat portion 3 of the seat 1 slides down. Phenomenon and sliding forward on the seat part 3, and also receive the front side back of the thigh part T through the raised front part 3a side, thereby restricting the forward sliding on t...

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PUM

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Abstract

The invention provides a resin airbag and the circumferential wall of the airbag is made of sheet-shaped synthetic resin.When inflation gas flows into the airbag, the upper wall portion and the lower wall portion of the airbag expand in a separation mode.The three sides surrounded the expansion area are surrounded with outer peripheries.The upper and lower wall portions are connected with each other in a semi-circular arc shape by the section of the airbag along the thickness direction.A continuous curve shape expanding outwardly is formed when viewed downwardly.In the expansion area, foldingportions are concentrically configured toward the inner side thereof, which are in a curve shape surrounding the outer peripheries in three sides and expanding toward the outer peripheries.Each folding portion is in a V shape with two inclined parts along the section of the airbag in the thickness direction.The two inclined parts extend from the bottom of a recess.When inflation gas flows into the airbag, the width of the opening is enlarged due to the plastic deformation of the folding portions, so that the air bag expands.The wall thickness is set within a predetermined range, so that the turning of the wall toward the outer surface thereof is avoided.

Description

Technical field [0001] The present invention relates to an airbag, which is used in an airbag device mounted on a vehicle and inflates by flowing inflating gas. In detail, the present invention relates to a resin airbag, which is not formed of a fibrous material such as cloth or non-woven fabric, but a peripheral wall formed of a sheet-like synthetic resin which is blow-molded, injection-molded, etc. And formed. Background technique [0002] Currently, as a resin airbag, a resin airbag used in an airbag device for knee protection is known (for example, refer to Japanese Patent Application Publication No. 2002-522286). The resin airbag is formed in a rectangular plate shape, is arranged so that the short sides face each other in the left-right direction, and is arranged in front of the driver's knees. In addition, in this resin airbag, a plurality of folded portions recessed in a U-shape in cross section are arranged side by side on the wall portion on the inflated side, that is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/23B60R21/235
Inventor 北泽司铃木滋幸青木雅司足立裕一冈田靖
Owner TOYODA GOSEI CO LTD
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