Lockset with external clutching assembly
AssigneeSchlage Lock Company LLC
InventorTroy A. Dalsing
Life of this patent
Estimating the term…
Abstract
A lockset assembly having an external clutching assembly. The external clutch assembly includes a first spindle connected to a door lever. The door lever rotates to move a latch assembly between a locked and an unlocked position. A clutching torsion spring inter connects the first spindle to a hub. A clock spring inter connects the hub to a cage fixedly attached to a door. A second spindle inserts through the cage inter connects the hub and the latch assembly. Rotation of the door lever with the second spindle moves the latch assembly between an unlocked and locked position. The clutch assembly allows the lever and first spindle to rotate when the second spindle is constrained by the latch assembly in the locked position.
Claims27
A clutching assembly, comprising:
- a first spindle and a second spindle;
- a hub having a first recess on a top side and a second recess on a bottom side, the first recess for receiving the first spindle and the second recess for receiving the second spindle;
- a cage having an opening for receiving the second spindle;
- a clutching torsion spring having a first end and a second end, the first end of the clutching torsion spring connected to the first spindle and the second end of the clutching torsion spring connected to the hub;
- and
- a clocking spring having a first end and a second end, the first end of the clocking spring connected to the hub and the second end of the clocking spring connected to the cage
- wherein the first spindle rotates when the second spindle is constrained with respect to the cage.
A lockset assembly for a door, the lockset assembly comprising:
- a door lever;
- a latch assembly having a latch that retracts to a unlocked position and extends to a locked position;
- a first spindle having a first end connected to the door lever and an opposing second end;
- a second spindle having a first end connected to the latch assembly and an opposing second end;
- a hub that abuts between the second end of the first spindle and the second end of the second spindle;
- a cage fixedly attached to a door;
- a clutching torsion spring that interconnects the first spindle and the hub;
- and
- a clock spring that interconnects the hub and the cage;
- wherein the door lever and connected first spindle rotates when the second spindle is constrained by the latch assembly.
A lockset assembly for a door, the lockset assembly comprising:
- a door lever;
- a latch assembly having a latch that retracts to a unlocked position and extends to a locked position;
- a first spindle having one end connected to the door lever;
- a second spindle having one end connected to the latch assembly;
- a hub that abuts between the other end of the first spindle and the other end of the second spindle;
- a cage fixedly attached to a door and including a slot;
- a clutching torsion spring that interconnects the first spindle and the hub;
- and
- a clock spring that interconnects the hub and the cage, the spring having first and second ends, the second end being attached to the cage slot;
- wherein the door lever and connected first spindle rotates when the second spindle is constrained by the latch assembly.
A lockset assembly for a door, the lockset assembly comprising:
- a door lever;
- a latch assembly having a latch that retracts to a unlocked position and extends to a locked position;
- a first spindle having one end connected to the door lever;
- a second spindle having one end connected to the latch assembly;
- a hub that abuts between the other end of the first spindle and the other end of the second spindle, the hub including a first slot and a second slot;
- a cage fixedly attached to a door;
- a clutching torsion spring that interconnects the first spindle and the hub, the spring having an end connected to the first slot of the hub;
- and
- a clock spring that interconnects the hub and the cage, the clocking spring having an end connected to the second slot of the hub;
- wherein the door lever and connected first spindle rotates when the second spindle is constrained by the latch assembly.
A lockset assembly for a door, the lockset assembly comprising:
- a door lever;
- a latch assembly having a latch that retracts to a unlocked position and extends to a locked position;
- a first spindle having one end connected to the door lever;
- a second spindle having one end connected to the latch assembly;
- a hub that abuts between the other end of the first spindle and the other end of the second spindle, the hub having an extension and a recess positioned in the extension;
- a cage fixedly attached to a door and including a cage opening for receiving the extension of the hub;
- a clutching torsion spring that interconnects the first spindle and the hub;
- and
- a clock spring that interconnects the hub and the cage;
- wherein the door lever and connected first spindle rotates when the second spindle is constrained by the latch assembly.
Dependencies are inferred from the claim text.