AN AIR-BAG UNIT

摘要

An air-bag unit (1) is disclosed which comprises a housing (5), an air-bag (7) and an inflator (6) for inflating the air-bag. The air-bag is initially packed within the housing (5) so that, upon inflation of the air-bag, at least part of the upper region (24) of the air-bag inflates before substantial inflation of the lower region (26). A restraining tether (16) is provided within the air-bag and is secured, at a first anchor region (18), to a generally central region of a front panel of the air-bag. The tether is also secured, at a second anchor region (22), to another part of the air-bag unit (1) so that, at least during an initial stage of inflation of the air-bag, the restraining tether (16) is placed under tension, thereby restraining inflation of the central region of the front panel, in order to create a centrally-positioned recess in the inflating air-bag.