| CPC E05C 19/003 (2013.01) [E05C 1/02 (2013.01); E05Y 2900/132 (2013.01)] | 16 Claims |
|
1. A locking system for a door accessible safe zone for individuals or property inside the zone, comprising:
a vertically slidable lock rod movable with respect to a door of a door accessible safe zone, the lock rod having a plurality of grooves disposed longitudinally on an exterior surface thereof; wherein a top end of the lock rod includes a top member configured to receive a pushing force by a hand of human user, and a distal end of the lock rod being opposed to the top end, such that the distal end of the lock rod is engageable into a support structure responsive to said pushing force;
a pivot lever being rotatably mounted to a pin being disposed proximate to a distal tip of the pivot lever; wherein upon responsive to the locking rod downward movement from the pushing force, the distal tip becomes engageable with the grooves of the lock rod so as to prevent upward vertical movement of the lock rod, when the distal tip is lockingly engaged with the grooves of the lock rod thereby defining a locking state of the door accessible safe zone; wherein the distal tip of the pivot level has a rounded locking exterior surface configured to engage within the grooves of the lock rod;
a bushing disposed around the lock rod, and a coil spring disposed around the lock rod, and the coil spring being disposed underneath the bushing, the coil spring being compressed during the locking state; the coil spring being configured to urge the lock rod vertically by abutting engagement of the bushing and;
a wire member being connected to the pivot lever, and a handle of the door; the wire member being responsive to rotating movement of the handle for upwardly linearly movement of the wire member to rotate the pivot lever on the pin, such that the distal tip of the pivot lever rotates downwardly to disengage the pivot lever distal tip from the grooves of the lock rod for enabling the lock rod to slide vertically upward responsive to a resilient biasing force provided by said coil spring; and
a releasable cam shaped member being engageable with a bottom surface of the pivot lever; the cam member being rotatable to pivot the pivot lever downwardly to disengage the distal tip from the grooves of the lock rod for enabling the lock rod to slide vertically upward responsive to the resilient biasing force provided by said coil spring.
|