Self-contained lock assembly
AssigneeSchlage Lock Company LLC
InventorJonathan W. Furlong
Life of this patent
Estimating the term…
Abstract
A throw member having a first and second hub located along a blade that couples the rotation of the core cylinder with the rotation of the key cam of a lock chassis to lock and unlock a lock assembly. The two hubs are spaced apart to receive a catch. The catch constrains the throw member from releasing when the core cylinder or door lever is exchanged or modified. In addition, the two hubs enhance the throw member's ability to prevent unauthorized removal of the door lever. One of the two hubs includes a passage to release the throw member from the catch.
Claims19
A throw member for a lock assembly, the throw member comprising:
- a blade having a first end and a second end, the first end for engaging a key cam of a chassis operable in retracting a latch of the lock assembly;
- a first hub located at the second end of the lock assembly;
- a second hub located at a distance along the blade apart from the first hub;
- and
- an extension to the first hub for engaging a core cylinder having a key mechanism, wherein rotation of a key inside the key mechanism of the core cylinder rotates the throw member and the key cam of the chassis in retracting the latch of the lock assembly;
- and
- wherein the throw member is located in a drive spindle that rotates to extend and retract the latch.
A throw member for a lock assembly, the throw member comprising:
- a blade having a first end and a second end, the first end for engaging a key cam of a chassis operable in retracting a latch of the lock assembly;
- a first hub located at the second end of the lock assembly;
- a second hub located at a distance along the blade apart from the first hub;
- and
- an extension to the first hub for engaging a core cylinder having a key mechanism, wherein rotation of a key inside the key mechanism of the core cylinder rotates the throw member and the key cam of the chassis in retracting the latch of the lock assembly, and
- wherein the core cylinder is interchangeable without releasing the throw member from the catch.
A throw member for a lock assembly, the throw member comprising:
- a blade having a first end and a second end, the first end for engaging a key cam of a chassis operable in retracting a latch of the lock assembly;
- a first hub located at the second end of the lock assembly;
- a second hub located at a distance along the blade apart from the first hub;
- and
- an extension to the first hub for engaging a core cylinder having a key mechanism, wherein rotation of a key inside the key mechanism of the core cylinder rotates the throw member and the key cam of the chassis in retracting the latch of the lock assembly, and
- wherein the blade is square-shaped for engaging the lock assembly.
A lock assembly for a door, the lock assembly comprising:
- a latch assembly having a chassis with a key cam operable in locking and unlocking the lock assembly;
- a door lever having a core cylinder with a key mechanism;
- a drive spindle that connects the door lever to the latch assembly, wherein rotation of the lever and spindle extends and retracts the latch;
- a throw member positioned in the drive spindle, the throw member having a first and second hub positioned along a blade, wherein a first end of the throw member engages the core cylinder and a second end of the throw member engages the key cain, and wherein rotation of a key inside the key mechanism of the core cylinder is operable in rotating the throw member and key cam in locking and unlocking the lock assembly.
Dependencies are inferred from the claim text.