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Airbag and airbag apparatus

An airbag and gas technology, applied in the directions of transportation and packaging, pedestrian/occupant safety arrangement, vehicle safety arrangement, etc., can solve the problem of the airbag against the steering wheel, etc., and achieve the effect of inhibiting forward movement

Inactive Publication Date: 2010-05-12
TAKATA CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the above-mentioned Japanese Patent Application Laid-Open No. 1-311930, since only the rear panel side of the inner panel is provided with a communication port, there is a problem that the airbag will withstand the steering wheel when the airbag is inflated.

Method used

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  • Airbag and airbag apparatus

Examples

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Embodiment Construction

[0033] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0034] figure 1 It is a cross-sectional view of an airbag for a driver's seat and an airbag device of an automobile in an embodiment of the present invention; figure 2 is an exploded perspective view of the airbag and the airbag device.

[0035] The airbag 10 includes a front panel 12, a rear panel 14, a first inner panel 22A, and a second inner panel 22B each formed of circular woven cloth. The front panel 12 and the rear panel 14 have the same diameter, and their outer peripheries are sewn together with a seam 15 formed of thread or the like to form a bag shape. The stitched portion is formed in an annular shape surrounding the outer peripheries of the front panel 12 and the rear panel 14 .

[0036] The rear panel 14 is provided with an inflator (gas generator) setting opening 16 and one or more vent holes 18 . The inflator installation opening 16 is arranged at ...

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Abstract

An airbag includes a first and a second inner panel that partition the internal part of the airbag into a first chamber, and a second chamber surrounding the first chamber. Rear-side openings that allow the first chamber to communicate with the second chamber are provided in the second inner panel. Front-side openings are provided in the first inner panel. A sum of the opening areas of the rear-side openings is greater than a sum of the opening areas of the front-side openings. The sum of the opening areas of each of the rear-side openings and the front-side openings is greater than a sum of the opening areas of vent holes.

Description

technical field [0001] The present invention relates to an airbag installed on a high-speed moving body such as a vehicle and inflated to protect a human body in an emergency such as a collision. Background technique [0002] In order to protect occupants in an emergency such as a car collision, various airbag devices such as an airbag device for a driver's seat are used. The airbag device for a driver's seat includes an airbag formed by sewing the peripheries of the front panel on the passenger side and the rear panel on the opposite side. In the center of the rear panel, there is provided an inflator installation opening for accommodating the front end side of the inflator. The periphery of the installation port is attached to the retainer with bolts, pins, rivets, and the like. Ventilation holes are provided in the rear panel for absorbing impact by releasing gas in the airbag when the driver's seat occupant sinks into the airbag. [0003] Japanese Unexamined Publicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R21/233B60R21/239B60R21/203
CPCB60R2021/23324B60R21/239B60R21/233B29C48/51
Inventor 安部和宏
Owner TAKATA CORPORATION
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