Abstract: A lock assembly (1) comprises a rotary latch member (3) rotatable between a first, locking, position and a second, released, position, an actuator (23) for effecting rotation of the rotary latch member, and a rotary-drive mechanism between the actuator (23) and the rotary latch member (3) for transmitting a rotary drive to the rotary latch member. The rotary drive mechanism includes first and second members (3, 5) mounted for rotation about substantially parallel axes and having overlapping peripheral portions with sets of interengaging formations (19A, 20A and 19B, 20B), each set of interengaging formations comprising a recess (19A, 19B) extending radially inwardly from a peripheral portion of one of the first and second members and a post (20A, 20B) projecting in a direction generally parallel to the axes of rotation of the members and engagable in the recess.

Abstract: A lock assembly (1) comprises a rotary latch member (3) rotatable between a first, locking, position and a second, released, position, an actuator (23) for effecting rotation of the rotary latch member, and a rotary-drive mechanism between the actuator (23) and the rotary latch member (3) for transmitting a rotary drive to the rotary latch member. The rotary drive mechanism includes first and second members (3, 5) mounted for rotation about substantially parallel axes and having overlapping peripheral portions with sets of interengaging formations (19A, 20A and 19B, 20B), each set of interengaging formations comprising a recess (19A, 19B) extending radially inwardly from a peripheral portion of one of the first and second members and a post (20A, 20B) projecting in a direction generally parallel to the axes of rotation of the members and engagable in the recess.