Patent ID: 8267425
Filing Date: 2012-09-18
Classification: B60R

Abstract:
1. An air bag system for a vehicle comprising an air bag in a folded state and installed in a vehicle, the air bag inflating and expanding by a gas supply, and an inflator introducing gas into the air bag, the air bag system further comprising: a vent hole provided on one base fabric piece of the air bag so as to establish a communication path between an inside and an outside of the air bag through which gas may be discharged from the inside toward the outside of the air bag; an inflator insertion hole defined in a center of said one base fabric piece and through which said inflator extends so as to introduce gas into the air bag, said vent hole being spaced in a radial direction outwardly from said inflator insertion hole; a blocking member spaced from said inflator insertion hole and supported on the base fabric piece to block up the vent hole, said blocking member having a length direction extending generally transverse to the radial direction and laterally away from said the vent hole, whereby a center portion of said blocking member overlies said vent hole on a first side of said base fabric piece while first and second opposed ends of said blocking member are spaced from said vent hole and said inflator insertion hole and disposed on a second, opposite side of said base fabric piece; at least one guide portion for slidably supporting the blocking member and restricting a position of the blocking member relative to the vent hole; and at least one sliding resistance increasing portion provided on at least one of the guide portion and the blocking member, so as to increase a sliding resistance between the guide portion and the blocking member when the blocking member slides.