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Airbag apparatus

An airbag and airbag cover technology, which is applied in transportation and packaging, pedestrian/passenger safety arrangements, vehicle safety arrangements, etc., can solve the problems of large airbag protrusion resistance, increased airbag internal pressure, and high airbag internal pressure, and achieve the goal of suppressing excessive rise Effect

Inactive Publication Date: 2008-04-02
TOYODA GOSEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But in the existing airbag device, because utilize the airbag that expands to make the break plan portion around break off, simultaneously the structure that door part is pushed open, so, the resistance when the airbag protrudes is bigger, need to expand the initial stage of the airbag. Internal pressure is set higher
Therefore, the internal pressure of the airbag protruding from the storage area increases at the initial stage of inflation, and a large load may be applied to the occupants to be protected.

Method used

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Examples

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Embodiment Construction

[0032] Hereinafter, one embodiment of the present invention will be described based on the drawings. 1 and 2 show a steering wheel airbag device M1 as a first embodiment of the present invention.

[0033] In addition, the front-rear, up-down, and left-right directions in the first embodiment are based on the forward steering of the steering wheel W mounted on the vehicle, and are set along the steering axis SS to which the steering wheel W is attached (see FIG. The up and down of the axial extension of the double dotted line in 1) is the up and down direction, the front and rear of the vehicle as the direction perpendicular to the axial direction of the steering shaft SS is the front and rear direction, and the front and rear of the vehicle as the direction perpendicular to the axial direction of the steering shaft SS is defined as the front and rear directions. The left and right of the directions are the left and right directions, and the front and rear, up and down, and lef...

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PUM

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Abstract

The airbag apparatus includes an inflator supplying inflation gas to an airbag under control of a control device. The inflator has two modes of operation; a rapid discharge mode where the inflator discharges a great amount of inflation gas and a slow discharge mode where the amount of substance of inflation gas supplied into the airbag per unit time is less than in the rapid discharge mode. The airbag apparatus includes means for reducing the resistance which the airbag encounters upon protruding from the housing under control of the control device. The means assist the airbag with protrusion from the housing when the inflator operates in the slow discharge mode.

Description

technical field [0001] The present invention relates to an airbag device comprising: an airbag folded and accommodated in a storage part; an inflator which supplies inflation gas to the airbag; and an airbag cover arranged to cover the storage part. Background technique [0002] Conventionally, as an airbag device, there is a structure as shown in Japanese Patent Application Publication No. 2004-507402, that is, a door portion that can be pushed open by an airbag that is inflated by flowing inflation gas from an inflator at a predetermined position of the airbag cover. , the airbag protrudes from the opening for protrusion formed by opening the door and expands and inflates it. Usually, in such an airbag device, in order to improve the appearance of the airbag cover, a predetermined breaking portion is provided around the door portion which can be broken by being pressed by an inflated airbag, and the door portion is integrally formed with the surrounding airbag cover. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/26B60R21/0134B60R21/0136B60R21/16B60R21/261B60R21/274
CPCB60R21/272B60R21/203B60R21/216B60R21/21656B60R2021/21543B60R2021/2161B60R2021/26094B60R2021/21518
Inventor 浅冈道久
Owner TOYODA GOSEI CO LTD
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