Lost motion driver for interchangeable core lock assemblies

A locking assembly comprising:

• a housing including a front portion and a rear portion, the front portion including an aperture revealing an interior of the housing, the rear portion including a recess;
• an interchangeable core cylinder disposed through the aperture and mounted within the interior of the housing, the interchangeable core cylinder including a keyway;
• a locking bar received by the recess of the housing, the locking bar including a serrated edge;
• a spring configured such that, in an unbiased state, the spring selectively engages the serrated edge of the locking bar;
• a first driver including a first cam, the first driver coupled to the interchangeable core cylinder;
• a second driver including a first surface and a second surface, the first surface opposite to the second surface, the first surface including a groove configured to receive the first cam, the second surface including a second cam extending therefrom;
• and
• a bracket disposed in the recess adjacent to the second surface of the second driver and fixedly connected to the rear portion of the housing to secure the first driver and the second driver in the interior of the housing,
• wherein when an operating key is inserted into the keyway and rotated the first cam rides in the groove of the second driver to rotate the second driver and when the second driver is rotated, the second cam makes contact with the spring to bias the spring away from the serrated edge of the locking bar to allow the locking bar to be withdrawn from the housing.