| 摘要 |
An air bag (32) adapted to be inflated comprising: an inlet portion (36) to receive inflation gas and a flexible walled portion (40) including at least one first vent hole (42) therein; a flexible member (50), joined at one end thereof to the walled portion on one side of the first vent hole and at another end thereof to the walled portion on an opposite side of the first vent hole, the flexible member including at least a second vent hole (56), expansion joints (60. 70), formed in the flexible member and the walled portion for maintaining the first and second vent holes aligned during an initial phase of inflation so as to provide exhaust port (44) through which inflation gas may exit and for permitting the first and second holes to move relatively to one another during continued inflation so as to close the exhaust port.
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