Inverted blocker rack & pinion
Assigneedormakaba USA Inc.
InventorMichael Hans Viklund
Life of this patent
Estimating the term…
Abstract
An interchangeable lock core for use with a key and having a locked state and an unlocked state is disclosed. The lock core may include a shell, a plug, and a lock. The plug may be positioned within and rotatable relative to the shell between a first plug position and a second plug position about a longitudinal axis of the plug. The plug may include a keyway adapted to receive the key. The lock may be rotatable about a lock axis between a first wherein a rotation of the plug is restricted and a second position wherein the plug is rotatable from the first plug position to the second plug position. The lock axis may be positioned outside of an envelope of the plug.
Claims20
A lock system comprising:
- a lock core comprising:
- a shell;
- a plug positioned within and rotatable relative to the shell between a first plug position and a second plug position about a longitudinal axis of the plug, the plug comprising a keyway and a lock passage;
- a lock rotatable about a lock axis between a first position wherein a rotation of the plug is restricted and a second position wherein the plug is rotatable from the first plug position to the second plug position, the lock being rotatable within an envelope of the shell and the lock axis positioned outside of an envelope of the plug, wherein the lock is rotatable from the second position to a third position wherein a rotation of the plug is restricted;
- and
- a lock actuator positioned within the lock passage of the plug;
- and
- a key for use with the lock core and adapted to be received in the keyway, the key comprising:
- a key bow;
- and
- a key shank including a groove along at least a portion of a side of the key shank, the groove defining a length terminating at a shoulder, the shoulder including a profile to match a profile of the lock actuator and, upon contact of the shoulder with the lock actuator, the lock actuator is operable to rotate the lock about the lock axis between the first position and the second position.
A lock system comprising:
- a lock core comprising:
- a shell;
- a plug positioned within and rotatable relative to the shell between a first plug position and a second plug position about a longitudinal axis of the plug, the plug including a keyway;
- a blocker movable between a first position restricting rotation of the plug,
- a second position allowing rotation of the plug, and a third position restricting rotation of the plug;
- and
- a gear assembly positioned within the plug and configured to cause movement of the blocker between the first position, the second position, and the third position;
- and
- a key for use with the lock core and adapted to be received in the keyway, the key comprising:
- a key bow;
- and
- a key shank including a groove along at least a portion of a side of the key shank, the groove defining a length terminating at a shoulder, the shoulder including a profile to match a profile of the gear assembly and, upon contact of the shoulder with the gear assembly, the gear assembly is operable to cause movement of the blocker between the first position, the second position, and the third position.
Dependencies are inferred from the claim text.