| 摘要 |
An airbag module (30) comprises an airbag (50) and a tether (52) having a first end (56) of the tether (52) secured to and movable with a portion (58) of the airbag during inflation of the airbag (50). A housing (40) houses the airbag (50) and an inflator (60). The housing (40) has a vent (144) through which inflation gas supplied by the inflator (60) can be selectively diverted from inflating the airbag (50) by moving a door (82) that seals the vent (144) away from the vent (144). A housing member (170) has a passageway (150) through which the tether (52) moves during inflation of the airbag (50). A first end (56) of the tether (52) is located on one side of the housing member (170). The tether has a second end (54) that is disposed on an opposite side of the housing member (170). A tether length control mechanism (80) is movable from a disengaged position to an engaged position during airbag inflation for stopping movement of the tether (52) through the passageway (150) in the housing member (170) and hence limiting movement of that portion (58) of the airbag (50) secured to the first end (56) of the tether (52). |
