Lock capable of automatically locking a door after closing
AssigneeI-Tek Metal Mfg. Co., Ltd.
InventorTsung-Yu Huang
Life of this patent
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Abstract
A lock capable of automatically locking a door after closing includes a latch, an anti-theft latch, and a stop-latch. When the door is in an open position, the stop-latch is in an extended position to prevent the anti-theft latch from moving to an anti-theft position. When the door pivots to a closed position, the stop-latch moves to a retracted position, and the anti-theft latch moves to the anti-theft position. When the latch is moved to an unlatching position through normal operation, the anti-theft latch moves to a non-anti-theft position. Thus, the anti-theft latch will be in the anti-theft position when the door is in the closed position, and the anti-theft latch will move to the non-anti-theft position when the door is opened through normal operation.
Claims9
A lock comprising:
- a case body;
- a latch movably coupled to the case body and movable between a latching position and an unlatching position;
- a connecting member pivotably connected to the case body, wherein the connecting member includes a push end operatively connected to the latch, wherein pivotal movement of the connecting member actuates the latch to move from the latching position to the unlatching position;
- an anti-theft latch movably coupled to the case body and movable between an anti-theft position and a non-anti-theft position;
- a stop rod pivotably connected to the case body, wherein movement of the anti-theft latch causes pivotal movement of the stop rod, and wherein when the stop rod is not pivotable, the anti-theft latch is prevented from moving from the non-anti-theft position to the anti-theft position;
- a stop-latch movably coupled to the case body, wherein the stop-latch is movable between an extended position and a retracted position, wherein when the stop-latch is in the extended position, pivotal movement of the stop rod is prevented, and wherein when the stop-latch is in the retracted position, the stop rod is pivotable, and the anti-theft latch is movable from the non-anti-theft position to the anti-theft position.
Dependencies are inferred from the claim text.