A vehicle airbag device is provided, the vehicle airbag device including (1) an airbag that is folded and stowed inside an airbag case, the airbag being inflated and deployed on being supplied with gas, (2) a mid-collision gas supply section that supplies gas into the airbag during a vehicle collision, and (3) a pre-collision gas supply section that, in a case in which it has been determined prior to a vehicle collision that a vehicle collision is unavoidable, supplies gas into the airbag at a lower temperature than a temperature of gas supplied into the airbag from the mid-collision gas supply section.

Disclosed is an inflation gas deflector for an automotive airbag assembly. The inflation gas deflector includes at least one layer of inorganic platelets or a multiple layer composite of at least one support layer and at least one inorganic platelet layer carried by the support layer. Also disclosed is an airbag cushion incorporating the inflation gas deflector and an automotive airbag assembly including the inflatable airbag cushion, the inflation gas deflector, and an inflator.

An inflator includes an inflator body that produces an inflation gas by burning a gas generating agent and a sensor that is mounted on the inflator body and is capable of detecting a degradation of the gas generating agent. The sensor is preferably composed of at least either one of a gas sensor, a pressure sensor, or a temperature sensor.

An inflator includes an inflator body that produces an inflation gas by burning a gas generating agent and a sensor that is mounted on the inflator body and is capable of detecting a degradation of the gas generating agent. The sensor is preferably composed of at least either one of a gas sensor, a pressure sensor, or a temperature sensor.

The present invention provides a gas generator including an ignition device chamber provided with the ignition device, a gas inflow chamber provided with a gas discharge port, and a pressurized gas chamber being arranged in order from the first end; a closing member including a fixing portion and a rupturable plate fixed to the fixing portion and closing between the pressurized gas chamber and the gas inflow chamber; and a breaking device for the rupturable plate being arranged between the ignition device chamber and the gas inflow chamber, the breaking device including a base portion, which has an outer circumferential surface abutted against an inner circumferential wall surface of the cylindrical housing, and a rod extending from the base portion to the rupturable plate, the fixing portion of the closing member including an annular plate surface portion, extending radially inward from the inner circumferential wall surface of the cylindrical housing, and a cylindrical wall portion extending from an inner circumference of the annular plate surface portion towards the gas inflow chamber, the rupturable plate of the closing member being fixed by welding to the annular plate surface portion of the fixing portion from the pressurized gas chamber, the breaking device being disposed such that a tip end of the rod is enclosed by the cylindrical wall portion of the fixing portion of the closing member.

A vehicular safety restraint inflator device, the inflator device includes a tubular housing to provide inflation gas to inflate an associated inflatable restraint device and a toroidal clamp stop positioned on the tubular inflator housing. The clamp stop serves to provide a hard stop for an inflator attachment clamp to secure the inflator device within an airbag module and thus to minimize or avoid undesired lateral movement of the inflator device within a module assembly.

A vehicular safety restraint inflator device, the inflator device includes a tubular housing to provide inflation gas to inflate an associated inflatable restraint device and a toroidal clamp stop positioned on the tubular inflator housing. The clamp stop serves to provide a hard stop for an inflator attachment clamp to secure the inflator device within an airbag module and thus to minimize or avoid undesired lateral movement of the inflator device within a module assembly.

The present invention provides a gas generator including: a cylindrical housing having an ignition device which is fixed to an opening at a first end, and a second end which is closed, the inside of the cylindrical housing being provided with an ignition device chamber, a gas inflow chamber and a pressurized gas chamber, these chambers being arranged in the above order from the first end; a rupturable plate closing a gas outflow port between the pressurized gas chamber and the gas inflow chamber; and a breaking device arranged between the ignition device chamber and the gas inflow chamber, the breaking device including a base and a rod extending from the base towards the rupturable plate, the rod including a rod main body portion and a rod enlarged-diameter portion at a distal end portion thereof, the rod enlarged-diameter portion including a distal end surface portion facing the rupturable plate and a circumferential wall portion, the distal end surface portion of the rod enlarged-diameter portion including a breaking portion and a non-breaking portion for the rupturable plate, the non-breaking portion being a concave portion which is formed in a portion including a circumferential region of the distal end surface portion and concaved in a thickness direction, a circumferential extent in which the non-breaking portion is formed as the concave portion being in such a range that an angle around the center of the distal end surface portion is not more than 100 degrees.

The present invention provides a gas generator, including a housing having therein an ignition device chamber, which is provided with a gas discharge port and accommodates an ignition device, and a pressurized gas chamber filled with a pressurized gas, the ignition device chamber and the pressurized gas chamber being separated by a partition wall having a communication hole, the partition wall being in a cup-like shape which includes a bottom surface and a circumferential wall surface, projects toward the pressurized gas chamber and has a flange portion at a portion corresponding to an opening in the cup-like shape of the partition wall, only the circumferential wall surface having the communication hole, the flange portion being fixed to the housing, a disk closing member being disposed inside the partition wall to be movable in the axial direction of the housing with a distance from the bottom surface, prior to activation, the communication hole being closed by a circumferential surface of the disk closing member, and at the time of activation, the closing member being moved toward the bottom surface by combustion products generated by the ignition device, thereby opening the communication hole and making communication between the ignition device chamber and the pressurized gas chamber.

The present invention provides a gas generator, including a housing having therein an ignition device chamber, which is provided with a gas discharge port and accommodates an ignition device, and a pressurized gas chamber filled with a pressurized gas, the ignition device chamber and the pressurized gas chamber being separated by a partition wall having a communication hole, the partition wall being in a cup-like shape which includes a bottom surface and a circumferential wall surface, projects toward the pressurized gas chamber and has a flange portion at a portion corresponding to an opening in the cup-like shape of the partition wall, only the circumferential wall surface having the communication hole, the flange portion being fixed to the housing, a disk closing member being disposed inside the partition wall to be movable in the axial direction of the housing with a distance from the bottom surface, prior to activation, the communication hole being closed by a circumferential surface of the disk closing member, and at the time of activation, the closing member being moved toward the bottom surface by combustion products generated by the ignition device, thereby opening the communication hole and making communication between the ignition device chamber and the pressurized gas chamber.