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US 12,297,659 B2Granted
Lock case with an anti-pick function
AssigneeI-Tek Metal Mfg. Co., Ltd.
InventorTsung-Yu Huang
Life of this patent
Estimating the term…
Abstract
A lock case with an anti-pick function is mounted on a door. The lock case includes a latch for retaining the door in a closed position. When the door is closed, an anti-pick latch of the lock case is in a retracted position to pivot an anti-pick member of the lock case to an anti-pick position, such that the latch cannot be picked to the latching position. When the door is not closed or a connecting member of the lock case is operated to actuate the latch, the latch can move to the latching position.
Claims6
A lock case comprising:
- a case body;
- a latch movably coupled to the lock case and movable between a latching position and an unlatching position;
- an interlocking member operatively coupled with the latch and including a push wall, wherein the push wall includes an upper end and a lower end;
- an anti-pick member pivotably mounted to the case body and including a first abutting portion, wherein the anti-pick member is pivotable between an anti-pick position and a non-anti-pick position;
- an anti-pick latch movably coupled to the case body and operatively connected to the anti-pick member, wherein the anti-pick latch is movable between an extended position and a retracted position, wherein when the anti-pick latch is in the extended position, the first abutting portion is spaced from the push wall of the interlocking member, and the anti-pick member remains in the non-anti-pick position, and wherein when the anti-pick latch is in the retracted position, the first abutting portion abuts against the push wall, and the anti-pick member is pivotable to the anti-pick position or the non-anti-pick position;
- and
- a connecting member pivotably connected to the case body and operatively connected to the interlocking member, wherein pivotal movement of the connecting member actuates the interlocking member and the latch to move jointly between the latching position and the unlatching position,
- wherein when the latch is in the latching position and the anti-pick latch is in the retracted position, the anti-pick member is in the anti-pick position and the first abutting portion abuts the lower end of the push wall,
- wherein when the latch is in the latching position and the anti-pick latch is in the retracted position, the anti-pick member is in the non-anti-pick position and the first abutting portion abuts the upper end of the push wall, and
- wherein with the anti-pick member in the anti-pick position and the connecting member not pivoted, the interlocking member remains unmoved when the latch is picked to move from the latching position towards the unlatching position, such that the anti-pick member remains in the anti-pick position, preventing the latch from moving from the latching position to the unlatching position.
7 more elements
Dependencies are inferred from the claim text.