Cylindrical lock with a clutching and a non-clutching configuration
AssigneeSchlage Lock Company LLC
InventorsKenton H. Barker, David J. Hurlbert
Life of this patent
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Abstract
The present disclosure is directed to a lock assembly that can be converted between a clutching and non-clutching orientation by rotating an outer housing 180 degrees relative to an outside drive assembly. The outer housing includes a notch and an elongate arcuate slot formed in the inner surface of the outer housing adjacent a through aperture and across from one another. A lock control lug is moveably coupled with the outside drive assembly and is selectively engageable with the notch or the arcuate slot of the outer housing. An outer lever is placed in a non-clutching configuration when the lock control lug is engaged with the notch and in a clutching configuration when the lock control lug is engaged with the arcuate slot.
Claims23
A lock assembly having an unlocked state that permits retraction of a latchbolt and a locked state that prevents retraction of the latchbolt, the lock assembly comprising:
- an outer housing positionable adjacent an outer surface of a door;
- an aperture formed through the outer housing;
- a notch formed in an inner surface of the outer housing adjacent the aperture;
- an arcuate slot formed in the inner surface of the outer housing adjacent the aperture, wherein the arcuate slot faces the notch and is positioned at an opposing location of the housing;
- an outer drive assembly coupled to the outer housing with a portion of the outer drive assembly extending through the aperture;
- an outer lever connected to the outer drive assembly;
- and
- a lock control lug slidably coupled with the outer drive assembly to define an element of a clutch, the lock control lug is selectively positionable in the notch of the outer housing to define a non-clutching configuration of the outer lever, and the lock control lug is selectively positionable in the arcuate slot of the outer housing to define a clutching configuration of the outer lever;
- and
- wherein the outer lever is in the non-clutching configuration when the lock control lug is positioned in the notch and is captured in the notch to prevent pivoting of the outer lever relative to the outer housing, and the outer lever is in the clutching configuration when the lock control lug is positioned in the arcuate slot and is free to move along the arcuate slot to permit pivoting of the outer lever relative to the outer housing.
A lock assembly having an unlocked state that permits retraction of a latchbolt and a locked state that prevents retraction of the latchbolt, the lock assembly comprising:
- an outer housing positionable adjacent an outer surface of a door;
- an aperture formed through the outer housing;
- a notch formed in the outer housing adjacent the aperture;
- an arcuate slot formed in the outer housing adjacent the aperture, wherein the arcuate slot faces the notch and is positioned at an opposing location of the housing;
- an outer drive assembly coupled to the outer housing with a portion of the outer drive assembly extending through the aperture;
- an outer lever connected to the outer drive assembly;
- and
- a lock control lug slidably coupled with the outer drive assembly to define an element of a clutch, the lock control lug is selectively positionable in the notch of the outer housing to define a non-clutching configuration of the outer lever, and the lock control lug is selectively positionable in the arcuate slot of the outer housing to define a clutching configuration of the outer lever;
- and
- wherein the outer lever is in the non-clutching configuration when the lock control lug is positioned in the notch to prevent pivoting of the outer lever relative to the outer housing, and the outer lever is in the clutching configuration when the lock control lug is positioned in the arcuate slot and is free to move along the arcuate slot to permit pivoting of the outer lever relative to the outer housing.
Dependencies are inferred from the claim text.