Air bag with tether

Details Air bag with tether Air bag with tether

Filed on

1997-09-22

Date issued

1999-12-07

Examiner

English, Peter C.

Patent Class

Land vehicles

SubClass

Wheeled

SubSubClass

Attachment

Other Related Categories

2807281, B60R 2116

Type

Patent

Status

active

Patent number

059970375

Description

ABSTRACT:
An air bag (30) has a base portion (40) and has a body portion (42) connected with the base portion and inflatable in a direction away from the base portion into an inflated condition. The air bag (30) includes first and second tethers (60, 70) which are sewn between the base portion (40) of the air bag and the body portion (42) of the air bag. The first tether (60) has a predetermined weakened portion (100 or 102). The second tether (70) has substantially higher elongation than the first tether (60). The second tether (70) has an effective length which is at least about the same as the effective length of the first tether (60). The air bag (30) has a partially inflated condition in which the first tether (60) is extended to its effective length and resist movements of the body portion (42) of the air bag away from the base portion (40). The first tether (60) is rupturable at the predetermined weakened portion (100 or 102) under the force of the inflating air bag (30) to enable movement of the air bag from the partially inflated condition to a fully inflated condition. The second tether (70) stretches during movement of the air bag (30) from the partially inflated condition to the fully inflated condition.

REFERENCES:
patent: 5078423 (1992-01-01), Fujita
patent: 5308113 (1994-05-01), Moriset
patent: 5362101 (1994-11-01), Sugiura et al.
patent: 5452913 (1995-09-01), Hansen et al.
patent: 5568938 (1996-10-01), Lindstrom
patent: 5613698 (1997-03-01), Patercsak et al.
patent: 5678858 (1997-10-01), Nakayama et al.
patent: 5813696 (1998-09-01), Hill

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