Air bag assembly for a motor vehicle
AssigneeFaurecia Industries
InventorsEtienne Galmiche, Frédéric Vannelli
Life of this patent
Estimating the term…
Abstract
A motor vehicle equipment assembly includes an air bag support, an air bag fixed to the support, a force spreader plate for spreading the force of the impact of a passenger against the air bag, and frangible fixing device fixing the plate to the support. The air bag includes the force spreader plate and a sheath of substantially closed cross-section. The sheath is fixed to the force spreader plate along one end—in such a manner that the inside volume of the air bag is defined by the sheath and by the force spreader plate.
Claims15
A motor vehicle equipment assembly, comprising:
- an air bag support;
- a gas generator;
- an air bag fixed to the support by first fixing means;
- a force spreader plate for spreading the impact force from a passenger over the air bag, said plate having an inside surface;
- and
- frangible second fixing means fixing said plate relative to the support when the air bag is in a rest configuration, which means are broken under the force for deploying the air bag;
- wherein the air bag comprises the force spreader plate and a sheath of substantially closed cross-section,
- wherein the sheath has an inside surface and a first end,
- wherein the sheath has a second end formed by an edge of closed outline,
- wherein the sheath is fixed to the force spreader plate along said second end by second fixing means in such a manner that an inside volume of the air bag is defined in a portion adjacent to the second end of the sheath by the inside surface of the sheath and by a portion of the inside surface of the force spreader plate, and
- wherein said inside surface of the sheath and said portion of the inside surface of the force spreader plate are exposed to a gas introduced into the air bag by said gas generator during deployment of the air bag.
A motor vehicle equipment assembly, comprising:
- an air bag support;
- a gas generator;
- an air bag fixed to the support;
- a force spreader plate for spreading the impact force from a passenger over the air bag, said plate having an inside surface;
- and
- frangible fixing element fixing said plate relative to the support when the air bag is in a rest configuration, said fixing element being broken under the force for deploying the air bag;
- wherein the air bag comprises the force spreader plate and a sheath of substantially closed cross-section,
- wherein the sheath has an inside surface and a first end,
- wherein the sheath has a second end formed by an edge of closed outline,
- wherein an inside volume of the air bag is defined in a portion adjacent to the second end of the sheath by the inside surface of the sheath and by a portion of the inside surface of the force spreader plate,
- wherein said inside surface of the sheath and said portion of the inside surface of the force spreader plate are exposed to a gas introduced into the air bag by said gas generator during deployment of the air bag, and
- wherein a cross-section of the sheath in a plane perpendicular to a deployment direction of the air bag is substantially constant, when the air bag is in a deployed state.
An airbag assembly of a motor vehicle, comprising:
- an air bag support;
- an air bag fixed to the support;
- a force spreader plate for spreading the impact force from a passenger over the air bag, said plate comprising one wall of said air bag such that an inside surface of the force spreader plate is exposed to a gas introduced into the air bag by a gas generator during deployment of the air bag;
- and
- frangible member connecting said plate to the support when the air bag is in a rest configuration, said member braking under a force for deploying the air bag.
Dependencies are inferred from the claim text.