Head protection air bag device
First Claim
1. A head protection air bag device having an air bag which is stored, while being folded, along the upper fringe of an opening on the cabin-inside or indoor side of a vehicle, when receiving inflation gas, said air bag developing and inflating to cover the opening, wherein said air bag includes a gas-inflow section which inflates so as to separate a cabin-inside side wall and a cabin-outside side wall one from the other, and a non gas-inflow section which rejects inflation gas, said gas-inflow section includes a plurality of inflatable protective shielding parts being disposed such that said inflatable protective shielding parts are longitudinally spaced from one another and cover said opening, and inflation communicating parts, each said inflatable protective shielding part includes a plurality of inflating parts which are arranged in the longitudinal direction and vertically expand able so as to generate a tension in the longitudinal direction, said non gas-inflow section includes a periphery part surrounding said non gas-inflow section, a plate-like portion disposed between said inflatable protective shielding parts, and partitioning parts being vertically disposed and defining said inflation parts in said inflatable protective shielding parts, said inflation communicating parts are disposed in the lower fringe side of said air bag under said plate-like portion and along the lower fringe of said air bag, said inflatable protective shielding parts, which are adjacently located with said plate-like portion being interposed therebetween, are communicated with each other by said inflation communicating part, and the lower ends of said inflation parts are closed at the lower-edge side parts of the periphery parts.
1 Assignment
0 Petitions
Accused Products
Abstract
In a head protection air bag device, a folded air bag receives inflation gas, and when its inflating operation is completed, inflation parts of front and rear inflatable protective shielding parts as partitioned by partitioning parts generate tensions in the longitudinal direction in the front and rear inflatable protective shielding parts per se. The front and rear inflatable protective shielding parts are interconnected to each other by inflation communicating part under a plate-like portion which blocks the inflow of the inflation gas, at the lower fringe side of the air bag. The inflation communication parts are longitudinally disposed along the lower fringe side of the air bag. Therefore, the front and rear inflatable protective shielding parts are interconnected without reducing the tensions in those parts. As a result, a high tension having the longitudinal direction is generated in the entire lower fringe of the air bag.
-
Citations
7 Claims
-
1. A head protection air bag device having an air bag which is stored, while being folded, along the upper fringe of an opening on the cabin-inside or indoor side of a vehicle, when receiving inflation gas, said air bag developing and inflating to cover the opening,
wherein said air bag includes a gas-inflow section which inflates so as to separate a cabin-inside side wall and a cabin-outside side wall one from the other, and a non gas-inflow section which rejects inflation gas, said gas-inflow section includes a plurality of inflatable protective shielding parts being disposed such that said inflatable protective shielding parts are longitudinally spaced from one another and cover said opening, and inflation communicating parts, each said inflatable protective shielding part includes a plurality of inflating parts which are arranged in the longitudinal direction and vertically expand able so as to generate a tension in the longitudinal direction, said non gas-inflow section includes a periphery part surrounding said non gas-inflow section, a plate-like portion disposed between said inflatable protective shielding parts, and partitioning parts being vertically disposed and defining said inflation parts in said inflatable protective shielding parts, said inflation communicating parts are disposed in the lower fringe side of said air bag under said plate-like portion and along the lower fringe of said air bag, said inflatable protective shielding parts, which are adjacently located with said plate-like portion being interposed therebetween, are communicated with each other by said inflation communicating part, and the lower ends of said inflation parts are closed at the lower-edge side parts of the periphery parts.
-
4. A head protection air bag device having an air bag which is stored, while being folded, along the upper fringe of an opening on the cabin-inside or indoor side and on the side of seat recliners, and when receiving inflation gas, said air bag develops and inflates to cover the opening,
wherein said air bag includes a gas-inflow section through which said inflation gas is introduced into said air bag, and a periphery part surrounding said gas-inflow section, said gas-inflow section is partitioned, by partitioning/coupling parts coupling the cabin-inside side wall with the cabin-outside side wall, into a plurality of inflation parts, which are arranged side by side in the longitudinal direction, and inflate when receiving said inflation gas so as to separate said cabin-inside side wall and the cabin-outside side wall one from the other, and said inflation parts located on the side of said seat recliners serve as lower-end displacement inflation parts located such that the lower ends thereof are higher than the lower ends of said other inflation parts, thereby preventing it from interfering with the upper ends of said seat recliners.
Specification