Toyota Jidosha Kogyo Kabushiki Kaisha

Toyoda Gosei Co., Ltd.

Yutaka Kondo

Shuho Nishina

Tetsushi Hiramitsu

Akira Yamanaka

Satoshi Ohno

Yutaka Tanaka

Iichi Shingu

Takashi Usugi

Disclosed is a steering wheel equipped with an air bag system. The steering wheel has a controller having a processor which outputs a trigger signal for actuating an air bag in accordance with the strength of an impact arising from a collision of a car, upon sensing the impact, and a memory which stores a process by this processor; an inflator which generates a gas in accordance with a signal outputted from the controller; and an air bag which is inflated with the gas supplied from the inflator. Between the opposite surfaces of a controller case and an inflator case, there is provided a heat-insulating layer. This heat-insulating layer serves to reduce heat passing from the inflator to the controller when the air bag is inflated. Consequently, contents stored in the memory mounted in the controller will never be destroyed by heat, and it is possible to analyze the process of operation of the processor after a collision of a car body.

Steering wheel equipped with an air bag system

Rollers are opposingly disposed at a drawing-out port for a seat belt webbing which is drawn out from a retractor. When an impact load has occurred, both the rollers are turned to tightly hold the seat webbing therebetween. Thus, a surplus length which is ascribable to the elongation and tight winding of the webbing is prevented from being drawn out.

Device for preventing the drawing-out of a seat belt webbing at the lock

A seat belt retractor wherein in normal use the seat belt is completely extended from the retractor. The seat belt retractor including a base, a retractor shaft rotatably coupled to the base and having a belt passageway formed therein, a means for applying a retractor force to the retractor shaft and a belt passing through the passageway at an intermediate point of the belt whereby one portion of the belt serves as a lap restraining belt and the other portion of the belt serves as a shoulder restraining belt and both the lap and shoulder belts are simultaneously and equally taken up on a single take-up shaft of retractor one over the other shaft by the retracting force.

Seat belt system

A first slip joint and a second slip joint are respectively arranged on a member mounted within an upper part of a car and a member mounted within a lower part of a car, a retractor is mounted on a side wall inside the car body (upon, for example, a center pillar) between the first and second slip joints, and a shoulder belt and a lap belt are respectively conducted from the retractor to a tongue plate through the first slip joint and through the second slip joint. A load which is exerted on a mounting portion of the retractor when the car body is suddenly decelerated can be confined to below approximately 50 Kg.

An electrically activated ignition circuit system for a gas generator to be used to inflate a gas bag in a motor vehicle.The system includes a bridge circuit including a first ignition filament for igniting gas-producing substances disposed in a gas generating bomb and a second ignition filament for exploding a detonator to break a seal for the bomb; a source to supply current to the bridge circuit; and a collision sensor to couple the current from the source to the bridge circuit when a collision occurs. The current first heats the second filament to explode the detonator and then heats the first filament to ignite the gas-producing substances.

Electrical ignition circuit for gas generator

A gas bag safety apparatus comprises an inflatable torso bag installed within the compartment of a vehicle, a gas-diffuser assembled within the torso bag and having a number of jet holes to supply pressurized gas fluid into the torso bag from an external gas pressure source, and an inflatable knee bag housed within the torso bag and mounted on a portion of the diffuser through a check valve to be inflated by the pressurized gas fluid supplied from the diffuser, the check valve being provided on the opening end of the knee bag to be opened into the knee bag. The valve seat portion of the check valve is at least double-layered to reinforce a portion of the knee bag exposed to the jet holes.

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Toyota, Japan

Yutaka Kondo