Air bag for side air bag device
First Claim
1. An air bag for a side air bag device adapted to be mounted on the peripheral edge of a door opening inside of the compartment of a vehicular body, comprising:
- an air bag having a generally rectangular bag shape having a gas inlet for introducing an inflating gas so as to cover said door opening when inflated, and a tensing joint partially jointing an inner side wall and an outer side wall is arranged to form a tension line for establishing a tension from a lower side to an obliquely upper side of said door opening peripheral edge at the time of expansion,such that a plurality of said tensing joints are juxtaposed along the direction of said tension line so as to cross said tension line,such that said individual tensing joints are arranged generally at vertical middle portions so as to form one expansion chamber having upper and lower spaces for said inflating gas to flow therethrough, andsuch that said individual tensing joints are shaped to have curved bulges bulging toward said gas inlet.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
94 Citations
26 Claims
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1. An air bag for a side air bag device adapted to be mounted on the peripheral edge of a door opening inside of the compartment of a vehicular body, comprising:
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an air bag having a generally rectangular bag shape having a gas inlet for introducing an inflating gas so as to cover said door opening when inflated, and a tensing joint partially jointing an inner side wall and an outer side wall is arranged to form a tension line for establishing a tension from a lower side to an obliquely upper side of said door opening peripheral edge at the time of expansion, such that a plurality of said tensing joints are juxtaposed along the direction of said tension line so as to cross said tension line, such that said individual tensing joints are arranged generally at vertical middle portions so as to form one expansion chamber having upper and lower spaces for said inflating gas to flow therethrough, and such that said individual tensing joints are shaped to have curved bulges bulging toward said gas inlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An air bag for a side air bag device adapted to be mounted on the peripheral edge of a door opening inside of the compartment of a vehicular body, comprising:
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an air bag having a generally rectangular bag shape having a gas inlet for introducing an inflating gas so as to cover said door opening when inflated, and having a tensing joint partially jointing an inner side wall and an outer side wall is arranged to form a tension line for establishing a tension at the time of expansion, such that a plurality of said tensing joints are juxtaposed along the direction of said tension line so as to cross said tension line, such that said individual tension joints are arranged generally at vertical middle portions so as to form one expansion such that said air bag is so arranged that its expansion area includes, when inflated, a portion of a center pillar so as to be supported by said center pillar when expanded, and such that said portion to be supported by the center pillar at the time of inflation is expanded such that said portion is thicker than the remaining ordinary expansion thickness. - View Dependent Claims (14)
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15. A side air bag device for installation in a vehicular body, comprising:
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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; and wherein 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. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A side air bag device for installation in a vehicular body, comprising:
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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 expanding 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 join 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 a lower space for an inflating gas to flow therethrough is defined in said lower side; and wherein 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. - View Dependent Claims (24)
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25. A side air bag device for installation in a vehicular body, comprising:
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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 expanding 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 join 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 of said air bag and a lower space for said inflating gas to flow therethrough is defined in said lower side; and wherein 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. - View Dependent Claims (26)
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Specification