Cushion airbag device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKenichiro Koshizako, Jiro Ohachi, Takuma Kawai
Life of this patent
Estimating the term…
Abstract
A cushion airbag device is provided in a lower part of a seat cushion in a vehicle seat, and includes a cushion airbag inflated in a vertical direction by being supplied with gas from a pressure accumulation tank, a control valve provided in a first pipe communicating the cushion airbag and the pressure accumulation tank and adjusting an internal pressure of the cushion airbag, an exhaust valve provided in a first pipe between the control valve and the cushion airbag and exhausting gas from the inside of the cushion airbag, and a switching valve provided in a second pipe communicating the cushion airbag and the pressure accumulation tank and opened at the time of collision of the vehicle.
Claims7
A cushion airbag device comprising:
- a cushion airbag configured to be provided at a lower portion of a seat cushion in a vehicle seat of a vehicle, wherein the cushion airbag is configured to inflate in an up-down direction of the vehicle when gas is supplied from a pressure accumulation tank;
- a control valve that is provided in a first pipe communicating the cushion airbag with the pressure accumulation tank, wherein the control valve is configured to adjust an internal pressure of the cushion airbag;
- an exhaust valve that is provided in the first pipe between the control valve and the cushion airbag, wherein the exhaust valve is configured to exhaust the gas from an inside of the cushion airbag;
- and
- a switching valve that is provided in a second pipe communicating the cushion airbag with the pressure accumulation tank, wherein the switching valve is configured to open at a time of a collision of the vehicle.
A cushion airbag device comprising:
- a cushion airbag configured to be provided at a lower portion of a seat cushion in a vehicle seat of a vehicle, wherein the cushion airbag is configured to inflate in an up-down direction of the vehicle when gas is supplied from a pressure accumulation tank;
- a control valve that is provided in a first pipe communicating the cushion airbag with the pressure accumulation tank, wherein the control valve is configured to adjust an internal pressure of the cushion airbag;
- an exhaust valve that is provided in the first pipe between the control valve and the cushion airbag, wherein the exhaust valve is configured to exhaust the gas from an inside of the cushion airbag;
- and
- a switching valve that is provided in a second pipe communicating the cushion airbag with the pressure accumulation tank, wherein the switching valve is configured to open at a time of a collision of the vehicle,
- wherein when a vehicle body vertical acceleration exceeds a predetermined threshold during traveling of the vehicle, the control valve is opened for a predetermined time.
A cushion airbag device comprising:
- a cushion airbag that is provided at a lower portion of a seat cushion in a vehicle seat, and inflates in an up-down direction when gas is supplied from a pressure accumulation tank;
- a control valve that is provided in a pipe communicating the cushion airbag with the pressure accumulation tank and adjusts an internal pressure of the cushion airbag;
- an exhaust valve that is provided in the pipe between the control valve and the cushion airbag and exhausts the gas from an inside of the cushion airbag;
- and
- an inflator that operates at a time of a collision of a vehicle and supplies gas to the inside of the cushion airbag.
Dependencies are inferred from the claim text.