Abstract: Provided are an airbag device and an airbag folding method capable of enhancing deployment performance of an airbag without using a separate component. An airbag includes a restraint portion to be located in front of an occupant upon inflation and deployment, a base portion connected to an inflator, a top portion to be located on a windshield W side upon inflation and deployment, and a bottom portion to be located between the occupant and an instrument panel I upon inflation and deployment. The restraint portion is folded in a belt shape with a contact surface of the restraint portion for contact with the occupant facing up to form a flap portion, and the flap portion is folded to move while turning toward the occupant upon inflation and deployment of the airbag.

Abstract: Provided are an airbag device and an airbag folding method capable of enhancing deployment performance of an airbag without using a separate component. An airbag includes a restraint portion to be located in front of an occupant upon inflation and deployment, a base portion connected to an inflator, a top portion to be located on a windshield W side upon inflation and deployment, and a bottom portion to be located between the occupant and an instrument panel I upon inflation and deployment. The restraint portion is folded in a belt shape with a contact surface of the restraint portion for contact with the occupant facing up to form a flap portion, and the flap portion is folded to move while turning toward the occupant upon inflation and deployment of the airbag.

Abstract: A side door for a vehicle includes a folded airbag which inflates upward in response to a side collision of the vehicle, and a cover member disposed above the airbag and covering the airbag. The cover member has a plurality of sections arranged in a fore-aft direction of the vehicle. The sections are defined by a hinge portion extending generally straight in the fore-aft direction of the vehicle and a plurality of lateral thin portions extending from the hinge portion generally in a lateral direction of the vehicle. When the airbag inflates, by means of inflation force of the airbag, the lateral thin portions rupture and the individual sections rotate about the hinge portion and open.

Abstract: An air bag system is provided with an air bag body, an inflator unit, and a sensor unit. The sensor unit is provided with a first sensor which detects an impact of a vehicle, a second sensor which detects a rolling-over of the vehicle, and a controller. When an impact of the vehicle is detected by the first sensor, the first inflator is actuated so that gas is supplied to the air bag body. Thereby, an internal pressure of the air bag body reaches a first pressure. When a rolling-over of the vehicle is detected by the second sensor, both the first and second inflators are actuated. Thereby, the internal pressure of the air bag body reaches a second pressure higher than the first pressure.

Abstract: A side door for a vehicle includes a folded airbag which inflates upward in response to a side collision of the vehicle, and a cover member disposed above the airbag and covering the airbag. The cover member has a plurality of sections arranged in a fore-aft direction of the vehicle. The sections are defined by a hinge portion extending generally straight in the fore-aft direction of the vehicle and a plurality of lateral thin portions extending from the hinge portion generally in a lateral direction of the vehicle. When the airbag inflates, by means of inflation force of the airbag, the lateral thin portions rupture and the individual sections rotate about the hinge portion and open.

Abstract: An air bag system is provided with an air bag body, an inflator unit, and a sensor unit. The sensor unit is provided with a first sensor which detects impact of a vehicle, a second sensor which detects rolling-over of the vehicle, and a controller. When impact of the vehicle is detected by the first sensor, the first inflator is actuated so that gas is supplied to the air bag body. Thereby, an internal pressure of the air bag body reaches a first pressure. When rolling-over of the vehicle is detected by the second sensor, both the first and second inflators are actuated. Thereby, the internal pressure of the air bag body reaches a second pressure higher than the first pressure.