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Gasbag and device thereof

An airbag and air pressure technology, which is applied in transportation and packaging, pedestrian/passenger safety arrangements, vehicle safety arrangements, etc., can solve the problems of spraying on passengers, increasing costs, etc., and achieve the effect of cushioning impact

Inactive Publication Date: 2003-11-19
TAKATA CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the airbag disclosed above has a problem that the gas flowing out through the vent hole is discharged in a lateral direction, and thus may be sprayed directly onto the occupant.
This adds to the cost

Method used

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  • Gasbag and device thereof
  • Gasbag and device thereof
  • Gasbag and device thereof

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0025] figure 1 is a perspective view of an airbag in an inflated state according to an embodiment, figure 2 (a), 2(b) is along figure 1 The sectional view taken along the line II-II in which figure 2 (a) represents the state before the airbag is inflated, figure 2 (b) shows the state after the airbag is inflated.

[0026] The airbag 1 is an airbag for a driver's airbag device, and includes a circular front panel 2 and a circular rear panel 3 which are stacked on each other and then sewn together along their peripheries. The rear panel 3 is provided with a central opening 4 through which the inflator is inserted. The rear panel 3 is also provided with vent holes 5 . A nozzle 6 made of fabric and having a cylindrical shape is fixed to the periphery of the exhaust hole 5 by sewing. figure 2 Reference numeral 7 in (a), 2(b) denotes a sewing thread for sewing the...

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PUM

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Abstract

In order to ensure enough high inner pressure of an airbag at the initial stage of inflation even with a low-output inflator and to make gas flowing out from a vent hole of the airbag to disperse over a wide range, an airbag (1) is made by sewing together a front panel (2) and a rear panel (3). The rear panel (3) is provided with a vent hole (5). A nozzle (6) is disposed to extend from the periphery of the vent hole (5). The nozzle (6) is made of fabric into a cylindrical shape and is sewn to the rear panel (3). The nozzle (6) wags or moves during gas flows out through the nozzle (6), whereby the gas disperses over a wide range. The airbag (1) is folded in a state that the nozzle is arranged inside the airbag (1).

Description

technical field [0001] The present invention relates to an airbag of an airbag device mounted on a vehicle such as an automobile, and more particularly, to an airbag having a vent hole. Background technique [0002] In an airbag device for an automobile, an inflator is activated when an emergency such as a car crash or rollover occurs, and thus gas ejected from the inflator inflates the airbag, thereby protecting a passenger. [0003] If the airbag is provided with one or more vent holes, then when the occupant hits the inflated airbag, the gas in the airbag will flow out through the vent holes, thereby buffering the impact on the occupant. [0004] Such an airbag is disclosed in Japanese Patent Unexamined Publication No. H08-268213, which comprises two pieces of fabric which are superimposed on each other and then sewn together along their peripheries to form an envelope-shaped airbag; The tongues of the layers are sewn together along their sides to create tubular vents. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/276B60R21/16B60R21/239
CPCB60R21/239
Inventor 顾蔚新
Owner TAKATA CORPORATION