Ligature resistant push-pull latch handle
AssigneeArchitectural Builders Hardware Mfg., Inc.
InventorsAnkit Kirti Shah, Daniel Quijano, Kirti Shah
Life of this patent
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Abstract
A push-pull door handle assembly is provided for use with a door having a latch mechanism. The assembly includes a base plate, an actuator linkage associated with the base plate and configured for actuating the latch, a door handle having a working end pivotally connected to the base plate and a free end opposite of the working end configured for manipulation by an operator such that a pushing action on the working end actuates the latch. The door handle is connected to the base plate such that a pulling action on the handle activates an alarm upon the free end reaching a predetermined position.
Claims13
A push-pull door handle assembly for use with a door having a latch mechanism, said assembly comprising:
- a base plate;
- an actuator linkage associated with said base plate and configured for actuating the latch;
- a door handle having a working end pivotally connected to said base plate and a free end opposite of said working end configured for manipulation by an operator such that a pushing action on the working end actuates the latch;
- said door handle being connected to said base plate such that a pulling action on said handle activates an alarm upon said free end being moved from a rest position below said base plate to a predetermined position at or above said base plate;
- said assembly further comprising:
- a cover constructed and arranged for mounting to said base plate, having a slot for accommodating said door handle and including a flap mounted to said cover and configured for pivoting relative to said cover upon said door handle moving to said predetermined position;
- wherein said flap has a free edge partially defining said slot;
- said free edge contacting said door handle as said door handle moves to said predetermined position.
A push-pull door handle assembly for use with a door having a latch mechanism, comprising:
- a first handle assembly configured for mounting to a first side of the door and operating upon a pulling action of a first handle relative to a first linkage mechanism;
- a second handle assembly configured for mounting to a second side of the door and operating upon a pushing action of a second handle relative to a second linkage mechanism;
- and
- an alarm circuit connected to said second handle and at least partially mounted to said base plate, said alarm circuit constructed and arranged for including at least one alarm being activated upon said second handle moving to a predetermined position from a rest position,
- said second handle assembly constructed and arranged such that upon a pulling action upon said second handle, said handle being constructed and arranged to pivot upwardly, so that a free end of said second handle moves from a rest position below said second linkage mechanism to a predetermined position above said second linkage mechanism;
- said assembly further comprising:
- a base plate for mounting said second handle assembly to said second side of said door;
- a cover constructed and arranged for mounting to said base plate, having a slot for accommodating said second handle and including a flap mounted to said cover and configured for pivoting relative to said cover upon said second handle moving to said predetermined position;
- wherein said flap has a free edge partially defining said slot;
- said free edge contacting said second handle as said second handle moves to said predetermined position.
A push-pull door handle assembly for use with a door having a latch mechanism, said assembly comprising:
- a base plate;
- an actuator linkage associated with said base plate and configured for actuating the latch;
- a door handle having a working end pivotally connected to said base plate and a free end opposite of said working end configured for manipulation by an operator such that a pushing action on the working end actuates the latch;
- said door handle being connected to said base plate such that a pulling action on said handle causes said handle to pivot to an upward position so that said free end moves to a predetermined position at or above said base plate from a rest position below said base plate;
- a cover constructed and arranged for mounting to said base plate, having a slot for accommodating said handle and including a flap pivotably mounted to said cover and configured for pivoting relative to said cover upon said handle moving to said predetermined position;
- an alarm circuit connected to said handle and at least partially mounted to said base plate, said alarm circuit constructed and arranged for being activated upon said handle reaching said predetermined position;
- and
- wherein said flap has a free edge partially defining said slot;
- said free edge contacting said door handle as said door handle moves to said predetermined position.
Dependencies are inferred from the claim text.