Ligature resistant door lock interface
AssigneeSecuritech Group, Inc.
InventorsMark J. Berger, David Mate
Life of this patent
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Abstract
A ligature resistant door lock interface is disclosed herein. In some embodiments the interface may include a pushbutton configured to lock an associated door lock. In some embodiments, the door lock may be a mortise lock. The interface may have sloped exterior surfaces and have a relatively large diameter. In some embodiments, the interface may be overridden, which allows an operator to unlock the door from an exterior side, regardless of whether the pushbutton is held in a depressed position.
Claims26
A ligature resistant door lock interface comprising:
- an escutcheon having a proximal end configured to lie closest to a door when mounted thereto and a distal end opposite the proximal end;
- and
- a pushbutton at least partially disposed within the escutcheon, the pushbutton having a distal tip, wherein the pushbutton is configured to lock a corresponding door lock when the pushbutton is depressed, wherein the door lock interface has dimensions comprising:
- a height of the escutcheon between the proximal end and distal end of approximately 0.6 inches;
- a pushbutton protruding distance defined as the distance between the distal end of the escutcheon and the distal tip of the pushbutton, the pushbutton protruding distance being approximately 0.3 inches when the pushbutton is in an extended configuration;
- a diameter of the pushbutton at the distal end of the escutcheon being approximately 1.25 inches when the pushbutton is in the extended configuration;
- and
- a diameter of the escutcheon at the proximal end of the escutcheon being approximately 2.1 inches.
A ligature resistant door lock interface comprising:
- a pushbutton rotationally fixed relative to an escutcheon and configured to be disposed on an interior side of a door, wherein the pushbutton is configured to lock a corresponding door lock when the pushbutton is moved to a depressed configuration;
- and
- a door lock override configured to allow unlocking of the door lock from an exterior side despite the pushbutton remaining in the depressed configuration.
A mortise lock comprising:
- a lock body;
- a ligature resistant door lock interface coupled to the lock body, the interface comprising:
- an escutcheon having a proximal end configured to lie closest to a door when mounted thereto and a distal end opposite the proximal end;
- a pushbutton at least partially disposed within the escutcheon;
- a cam connected to the pushbutton configured to be depressed and convert linear movement of the pushbutton into rotation movement of a locking actuator;
- and
- wherein the mortise lock is configured to be locked and unlocked by at least partial rotation of the locking actuator caused by depressing the pushbutton.
Dependencies are inferred from the claim text.