Patent ID: 6382662
Filing Date: 2002-05-07
Classification: B60R

Abstract:
An air bag to be attached to a steering wheel with a steering wheel plane extending through an upper surface of the steering wheel, comprising:an outer bag having a lower side close to a driver along a longitudinal direction of a vehicle, and an upper side opposite to the lower side, and an inner bag housed in the outer bag and having a lower gas flow-out port directed to the lower side to allow a gas ejected into the inner bag to flow out in a lower direction, and an upper gas flow-out port for allowing the gas ejected into the inner bag to flow out in an upper direction opposite to the lower direction, said lower and upper gas flow-out ports being located on a driver's side relative to the steering wheel plane in a state where the inner bag is expanded, said lower gas flow-out port having an opening area greater than that of the upper gas flow-out port to allow the gas flowing out through the lower gas flow-out port to be greater than that through the upper gas flow-out port, said inner bag being formed of two panels, each having an upper side, a lower side with a semicircular hole and two lateral sides, which are sewed together after laminating with each other to match shapes thereof such that the upper sides are completely sewed; the lower sides are sewed together except for the semicircular holes for forming a hole for an inflator; and the lateral sides are sewed together to have spaces with respect to the upper sides, one space for forming the lower gas flow-out port being greater than the other space for forming the upper gas flow-out port.