초록 ▼

An air bag (11) for a side air bag device capable of reducing the size and weight of the device (M1) while retaining a tension line (L--L) when expanded is mounted on the peripheral edge of a door opening (W) at the inside of a compartment, and is formed into a generally rectangular bag shape for co

An air bag (11) for a side air bag device capable of reducing the size and weight of the device (M1) while retaining a tension line (L--L) when expanded is mounted on the peripheral edge of a door opening (W) at the inside of a compartment, and is formed into a generally rectangular bag shape for covering the door opening when expanded, while being equipped with a gas inlet (19) for introducing an expanding gas. The air bag is provided with joints (22) jointing an inner side wall (12) and an outer side wall (13) partially so as to form a tension line L--L when expanded. The individual joints (22) are juxtaposed in plurality along the tension line so as to cross the tension line, and are arranged generally at vertically middle portions so as to form one expansion chamber (18) having upper and lower spaces (18a and 18b) for the expanding gas to flow therethrough.

대표청구항 ▼

[ What is claimed is:] [15.] A side air bag device for installation in a vehicular body, comprising:an air bag having an inner wall and an outer wall adapted to be mounted on a peripheral edge of a door opening on an inside of the vehicular body, and folded and accommodated along a roof side rail su

[ What is claimed is:] [15.] A side air bag device for installation in a vehicular body, comprising:an air bag having an inner wall and an outer wall adapted to be mounted on a peripheral edge of a door opening on an inside of the vehicular body, and folded and accommodated along a roof side rail such that said air bag is capable of inflating to cover the door opening;wherein said air bag includes an upper side mounted on said roof side rail of said vehicular body and a lower side extending in a front and a rear of the air bag and arranged to face said upper side and a free end of the air bag;wherein a plurality of joints joint the inner wall and the outer wall in a position between said upper side and said lower side and restrict expansion of said air bag, said plurality of joints divide said upper side from said lower side;wherein an upper space for an inflating gas to flow therethrough is defined in said upper side; andwherein the air bag is folded in a bellows shape with said inner wall and said outer wall collapsed together and overlapping each other such that folded overlapping faces are generally at a right angle with respect to a door inside face of said vehicular body.