Interchangeable electronic lock

An electronic lock operating between a locked position and an unlocked position, for locking and unlocking a storage unit, the electronic lock comprising:

• A lock housing for secure engagement with the storage unit;
• A driver for operating engagement with a locking assembly in the storage unit;
• A drive shaft assembly in the housing for selective operational engagement with the driver;
• An electronic access control to operate a gear segment assembly between a first gear segment position and a second gear segment position;
• in the first gear segment position the drive shaft assembly is operationally disengaged from the driver when the electronic lock is in the locked position;
• and in the second gear segment position, the drive shaft assembly is operationally engaged with the driver when the electronic lock is in the unlocked position;
• and
• A manual activation assembly operationally connected to the driver when the gear segment assembly is in the second gear segment position, for manual operation of the driver between the first driver position and the second driver position.

An electronic lock operating between a locked position and an unlocked position, for locking and unlocking a locking assembly in a storage unit, the electronic lock comprising:

• A lock housing for secure releasable engagement with the storage unit;
• A drive shaft in the housing, the drive shaft comprising:
• A first shaft segment secured to a removable driver for engagement with the locking assembly;
• A second shaft segment, is operationally disconnected from the first shaft segment in a first mode, and operationally connected to the first shaft segment in a second mode;
• An electronic access control to operate a gear segment assembly between a first gear segment position and a second gear segment position;
• in the first gear segment position, the second shaft segment is operationally disconnected from the first shaft segment;
• in the second gear segment position, the second shaft segment is operationally connected to the first shaft segment;
• The electronic access control comprising:
• a programmable keypad or a security scanner to activate a battery powered motor for operation of the gear segment assembly between the first gear segment position and the second gear segment position;
• and
• A third shaft segment in a manual activation assembly for manual rotational operation of the drive shaft when (a) the gear segment assembly is in the second gear segment position, or (b) the manual activation assembly is in a bypass mode to operationally connect the second shaft segment to the first shaft segment without activating the battery powered motor.