Side air bag with directional expansion belt
AssigneeToyoda Gosei Co., Ltd.
InventorsKoji Shibayama, Yuji Sato, Motoaki Naruse, Satoshi Mabuchi
Life of this patent
Estimating the term…
Abstract
A side air bag is expanded by gas discharged from an inflator between a side body of a vehicle and a vehicle front seat. The air bag is fixed with a case in a seat back of the front seat, and expands in a vehicle frontward direction. A belt is sewn to the air bag at a portion where the air bag is fixed to the case and at a seamed front portion of the air bag. The belt creates a tensile force on the air bag that restricts frontward directional deviation of the air bag during expansion.
Claims15
A side air bag device for expanding an air bag beside a passenger of a vehicle, comprising:
- an air bag case for mounting in a vehicle seat back;
- an air bag that is fixed in the case at a fixing portion and that is expandable in a frontward direction between a body side of the vehicle and the vehicle passenger seat, wherein the air bag includes a seamed belt portion located at one seamed front portion of the air bag;
- and
- a belt sewn on the air bag at both the seamed belt portion and the air bag case,
- wherein the belt is for creating a tensile force to pull back the seamed belt portion toward the fixing portion when the air bag is expanded.
A vehicle passenger side air bag device, comprising:
- an air bag case for mounting in a vehicle seat back;
- a gas generator housed in the air bag case;
- an air bag affixed to and housed in the air bag case, the air bag having at least one of an upwardly protruding shape and a downwardly protruding shape when the air bag is expanded and being expandable in a vehicle frontward from direction the vehicle seat back by gas discharged from the gas generator;
- and
- a belt sewn on a portion of the air bag where the air bag is fixed and on a seamed front portion of the air bag, wherein the belt restricts frontward deviation from an intended direction of expansion of the air bag by a tensile force caused by the belt during expansion of the air bag.
A vehicle passenger side air bag device, comprising:
- an air bag case for mounting in a vehicle seat back;
- a gas generator housed in the air bag case;
- an air bag affixed to and housed in the air bag case, the air bag having at least one of an upwardly protruding shape and a downwardly protruding shape when the air bag is expanded and being expandable in a vehicle frontward direction from the vehicle seat back by gas discharged from the gas generator;
- and
- expansion restricting means for restricting frontward deviation from an intended direction of expansion of the air bag during air bag expansion.
Dependencies are inferred from the claim text.