Patent ID: 8757677

Claim:
An electrically automated releasable locking assembly providing enhanced resistance against tampering, the electrically automated releasable locking assembly comprising: a lock housing; a lock element fixedly connected to a locker door and introduceable into the lock housing; a lock pawl disposed in the lock housing, comprising a linear member with a rotary bearing, and having a pivot axis, said lock pawl being rotably displaceable to a limited degree into a locking position, wherein the lock pawl either directly engages with the lock element or indirectly engages with the lock element via a displaceably mounted coupling element; and a drive element coupled with the lock pawl in displacement for moving the lock pawl in a controlled manner out of the locking position into a releasing position, the drive element comprising an electromagnet and a linearly displaceable armature having a first end and a second end, the linearly displaceable armature being connected at the second end to the electromagnet; wherein forces transmitted from the lock element due to an opening force on the locker door held locked run directly or indirectly via the at least one coupling element at a point of force transmission to the lock pawl in a radial direction with respect to the pivot axis and are transmitted from the pivot axis to the lock housing; wherein a section of the point of force transmission for the locking forces transmitted to the lock pawl is configured so that positively induced or abutment-induced forces and impulses transmitted directly or indirectly from the lock element to the lock pawl are directed radially with respect to the pivot axis and any occurring tangential force and impulse components are transmittable exclusively by frictional forces at the point of force transmission; wherein the lock pawl is a two-arm lever comprising a first lever arm and a second lever arm, wherein the first lever arm cooperates with the lock element or the coupling element respectively, and the second lever arm is connected to the second end of the linearly displaceable armature of the drive element; and wherein the lock pawl sits with the first lever arm and the second lever arm balanced about its pivot axis, so that a weight of the first lever arm equals at least approximately a weight of the second lever arm plus a weight of the linearly displaceable armature.