Japanese Patent JPS5112529

A

In an emergency locking safety belt retractor, a locking bar is operated by inertia responsive means which includes an inertia responsive mass and a locking bar for locking with teeth of the ratchet wheel associated with the belt winding wheel of the retractor. The inertia responsive means has been improved by the provision of having resilient means in force transmitting relation between the lock bar and the mass for receiving and storing energy imparted thereto by movement of the mass and for thereby urging the lock bar toward locking engagement with the ratchet wheel through a pawl bounce condition. The pawl bounce condition is defined as the condition that occurs when the lock bar initially bounces off the tooth of the lock wheel before attaining a locking engagement with the wheel. The resilient means may take the form of several different embodiments. In one embodiment, an actuator is mounted between the mass and the lock bar. A resilient stem is connected between the mass and the actuator, and the resilient stem may either be a spring wire or a coil spring. In another embodiment, the resilient means is mounted between the actuator and the lock bar and may either take the form of a diaphragm or a elastomeric material which absorbs energy in either stretching or compressing, or it may comprise a spring mounted on the lock bar for engagement with the actuator to absorb energy from the lock bar to the actuator.

JPH1148911

CAR BODY ACCELERATION SENSOR FOR SEAT BELT

AKIRA TANAKA
ABURAHAMU JIBU

JP7185275A

January 31, 1976

June 13, 1975

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AMERICAN SAFETY EQUIP

B60R22/40; B64D25/06; (IPC1-7): A62B35/02

JPS5112887A

1976-01-31

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