Abstract: Self-locking belt wind-up device for safety belts including rotatable cylinder means whereon a safety belt is windable, and a unitary assembly of a bearing block, a pendulum pendulously supported by the bearing block, and a locking lever pivotally supported on the bearing block and engageable by the pendulum for pivoting into a position wherein it is in engagement with the cylinder means and locks the latter against rotation.

Abstract: Buckle assembly for motor vehicle safety belts including a buckle member and an insert tongue secured to a belt, the insert tongue being insertable in a given insertion direction into the buckle member so as to be secured in a locking position therein, the buckle member including a base plate, a latch member pivotally mounted on the base plate transversely to the given insertion direction, a spring-biased key depressible so as to pivot the latch member about the insert tongue in the locking position, the latch member being formed with a latch nose which, in the locking position of the insert tongue, engages in a recess formed in the insert tongue, the base plate being formed with a recess in a substantially central region thereof that is longer and wider than the latch member, the recess in the base plate being partly defined by a forward edge formed with ears having an open gap therebetween and bent at an angle initially outwardly and, in a free marginal region thereof, in the given insertion direction of th