Importance

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Abstract

A bolt assembly (21) including a movable bolt (34) and a user manipulatable bolt displacement assembly is disclosed. The bolt displacement assembly moves the bolt (34) between a locked and an unlocked position. The bolt displacement assembly includes a user manipulated handle (37), a torque transfer assembly (b 38) and an electromagnet (39). Handle (37) is mounted on an exterior side (36) of the bolt assembly (21) and is freely movable without coupling of the handle (37) to displace the bolt (34). Torque transfer assembly (38) in the form of a rocker arm (63) is mounted for movement in response to movement of the handle (37) and moves to and from a torque transmitting position during at least part of the movement cycle of the handle (37). Additionally, electromagnet (39) is reponsive to user input for energization thereof and is positioned to magnetically hold the torque transfer assembly (38) in the torque's transmitting position upon the simultaneous occurrence of energization of the electromagnet (39 ) and movement of the torque transfer assembly (38) to the torque transmitting position by the handle (37). Handle (37) is further movable by the user while the torque transfer assembly (38) is held in the torque's transmitting position to couple the handle (37) to bolt (34) to move the bolt (34) between the locked position and the unlocked position. Additionally, an optic link (29, 32) coupling dead bolt assembly (21) to an electronic door lock assembly (23) is provided so that input to the door lock assembly (23) automatically energizes the electromagnet (39) in the dead bolt assembly (21) to permit opening of the dead bolt assembly (21).

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First Claim