Lock assembly
AssigneeSchlage Lock Company LLC
InventorsLohithaswa Thimmappa, Evan E. Evans, Vinod Kumar Rajan, Aravinda Mahabaleshwara, Ravindra K. Pandey, Roger Kanaan
Life of this patent
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Abstract
A method of manufacturing a lock assembly for enabling use of a key-in-knob lock cylinder assembly in different types of lock assemblies. The method includes providing a key-in-knob lock assembly having a key-in-knob housing and a plug rotatably engaged within the key-in-knob housing, providing an interchangeable core lock assembly having an interchangeable core housing, and inserting the key-in-knob housing into the interchangeable core housing such that the key-in-knob housing is universally exchangeable between the key-in-knob lock assembly and the interchangeable core lock assembly.
Claims29
A method of manufacturing a lock assembly for enabling use of a key-in-knob lock cylinder assembly in different types of lock assemblies, the method comprising:
- providing a key-in-knob lock assembly including a key-in-knob housing having a pin portion defining at least two outer pin chambers receiving outer pins, the lock assembly further including a plug rotatably engaged within the key-in-knob housing;
- providing an interchangeable core lock assembly including an interchangeable core housing defining a figure-eight-shaped cavity;
- providing an adapter including a curved profile conforming to an upper portion of the figure-eight-shaped cavity and a pin supported by the adapter;
- removably attaching the adapter to the key-in-knob housing over the pin portion;
- inserting the key-in-knob housing into the interchangeable core housing so that the pin portion and the adapter are disposed in the upper portion of the figure-eight shaped cavity and the plug is disposed in a lower portion of the figure-eight shaped cavity such that the key-in-knob housing is universally exchangeable between the key-in-knob lock assembly and the interchangeable core lock assembly;
- and
- removably securing the key-in-knob housing in the interchangeable core housing by engaging and disengaging the pin relative to a locking hole of the interchangeable core housing.
A key-in-knob lock cylinder assembly comprising:
- a key-in-knob housing defining a cylindrical cavity and having a pin portion defining an outer pin chamber communicating with the cavity, the outer pin chamber being adapted to house an outer pin;
- a plug disposed in the cavity and being rotatable within the cavity between a locked position and an unlocked position, the plug having an inner pin chamber aligned with the outer pin chamber when the plug is in the locked position;
- an adapter removably attachable to the pin portion and including a curved profile;
- and
- a pin supported by the adapter,
- wherein at least one of the key-in-knob housing and the plug is exchangeable between a key-in-knob lock assembly and at least one of an interchangeable core lock assembly and a mortise lock assembly, the interchangeable core lock assembly including an interchangeable core housing defining a locking hole, and
- wherein the pin is engageable and disengageable relative to the locking hole to removably secure at least one of the key-in-knob housing and the plug in the interchangeable core housing.
An interchangeable core lock assembly comprising:
- an interchangeable core housing having a housing body defining cavity with a figure-eight cross section, and a locking hole extending into the housing body from adjacent an upper portion of the cavity;
- an interchangeable core lock cylinder assembly including
- a key-in-knob housing having a wall defining a hollow portion, and a pin portion defining at least two outer pin chambers receiving outer pins,
- a plug having a body rotatably housed within the hollow portion of the housing, a key slot disposed at least partially through the body, at least two inner pin chambers disposed within the body and in communication with the key slot, the at least two inner pin chambers receiving inner pins, the plug further having a pin receiving chamber receiving a control pin, and
- an actuating mechanism engageable by the control pin and having an actuating pin holder, an actuating ring, an actuating pin engageable with the locking hole, and a connector pin, the actuating pin holder having a holder body, an insertion guide, and an insertion channel extending partially through the holder body, the actuating pin holder removably engaged with the pin portion via the insertion channel such that the actuating pin holder is removably secured to the key-in-knob housing.
Dependencies are inferred from the claim text.