VEHICLE SEAT BELT BUCKLE Russian patent published in 1997 - IPC

FIELD: transport engineering; passive safety devices. SUBSTANCE: seat belt buckle has lock tongue to be fitted into body accommodating paired plates interconnected by rod secured in vehicle body and by spring-loaded three-teeth latch installed with its extreme teeth in holes of plates square to their plane. With buckle in closed state central tooth of latch is placed in hole of lock tongue exposed to action of spring loaded pusher. Buckle release member is made in form of slider whose end face wall is pressure surface and side walls are provided with inner longitudinal slots for moving in paired plates. Owing to the fact that buckle release member has wedge lugs with inclined and straight-line sections located at side of lock tongue and longitudinal shanks at opposite side whose parts are arranged on inner surface of member, possibility is provided for smooth release of extreme teeth of latch from engagement and for reliably locking side surface of latch in closed and open positions of buckle. EFFECT: improved safety, enhanced reliability. 7 cl, 5 dwg