Patent ID: 8032993

Claim:
An adjustment mechanism, comprising: a generally cylindrical dial comprising an inner wall defining a hole passing through the dial, the inner wall comprising a ledge having one or more cutouts; a base comprising a first set of teeth; an actuator comprising a second set of teeth, the second set of teeth configured to engage the first set of teeth and allow the actuator to be rotated in a first direction but not in a second opposite direction; the actuator further comprising one or more drive-dogs, each drive-dog configured to engage a cutout on the inner wall of the dial, each drive-dog comprising a ramped edge configured to disengage the drive-dog from the cutout and to lift the second set of teeth of the actuator from the first set of teeth of the base when the dial is rotated in the second direction; and wherein the actuator is configured to tighten an adjusted mechanism when the dial is rotated in the first direction and loosen the adjusted mechanism when the dial is rotated in the second direction.