Impact-safe motor-vehicle door latch

Abstract

A motor-vehicle door latch has a latch housing formed with a recess open in an acceleration direction the latch is displaced in during a collision and, immediately adjacent the recess, with a blocking formation directed in the direction. A latching element is displaceable on the housing between a position retaining a door bolt and a position releasing the door bolt and a retaining pawl displaceable engageable with the latching element is pivotal on the housing between a retaining position holding the latching element in its retaining position and a freeing position releasing the latching element. An actuating lever pivotal on the housing is engageable with the pawl to move same into the freeing position. The actuating lever extends transversely of the acceleration. An L-shaped blocking lever has a pair of arms and is pivotal on the actuating lever between a nonblocking position with one of the arms aligned generally in the direction with the recess and engageable and the other arm extending transversely of the direction and a blocking position with the one arm aligned in the direction with the blocking formation. The blocking lever when in the blocking position prevents pivoting of the actuating lever into the freeing position. A spring urges the blocking lever into the nonblocking position. This blocking lever is constructed to pivot against the spring into the blocking position on acceleration of the lever in the direction.