| 摘要 |
<p>A locking assembly. A key has a key stem, the key stem defining a key-to-actuator contact surface. A lock sleeve defines an inner sleeve surface, the inner sleeve surface defining a substantially longitudinal sleeve longitudinal groove and a substantially circumferential sleeve circumferential groove. A substantially cylindrical lock core defines a core end surface and a key channel extending substantially longitudinally from the core end surface for allowing insertion thereinto of the key, the lock core being supported by the inner sleeve surface for selective rotation within the lock sleeve. A lock piece is slidably mounted to the lock core for slidable movement relative thereto between a retracted configuration and an unlocked configuration. The lock piece includes a lock piece tongue extending substantially outwardly from the core outer surface and a lock piece actuator extending substantially inwardly into the key channel for selective engagement with the key. The key and the lock piece actuator are complementarily configured and sized according to three independent directional parameters so that only a predetermined three dimensional configuration of the lock piece actuator allows for operational contact with the key-to-actuator contact surface upon insertion of the key into the key channel so as to enable the key to move the lock piece longitudinally relative to the lock core from the retracted to the unlocked configuration. In the retracted configuration, the lock core is substantially prevented from rotating relative to the lock sleeve by an abutting contact of the lock piece tongue against the sleeve circumferential groove, and in the unlocked configuration, the lock piece tongue is substantially in register with the sleeve circumferential groove to allow a rotation of the lock core relative to the lock sleeve.</p> |
