Abstract: An actuator has a rotatable input member coupled to a drive member such that rotation of the rotatable input member under an input load causes rotation of the drive member on a first axis. The drive member is coupled to a driven member such that rotation of the drive member causes rotation of the driven member on a second axis which is laterally offset from the first axis. A coupling between the drive member and the driven member is arranged to provide a rotational reduction from the drive member to the driven member. The driven member is arranged for connection to a wire of a Bowden cable having a sleeve seatable in relation to a housing for the actuator such that rotation of the driven member causes extension or retraction of the cable.

Abstract: An actuator for use in adjusting a device by means of a Bowden cable includes a housing and an input shaft mounted in the housing and rotatable on a first axis. The shaft has an eccentric portion centered on a second axis laterally offset from the first axis, while a gear track defined by, or fixed in relation to, the housing is concentric with the first axis. A gear is rotatable on the eccentric portion and drivingly engaged with teeth of the gear track. A pulley member rotatably mounted on the input shaft is rotatable with rotation of the gear and is adapted for securing an end of a wire of a Bowden cable. With rotation of the input shaft on the first axis, the gear is caused by the eccentric to orbit around the first axis. In so orbiting the gear is caused by its engagement with the gear track to rotate on the second axis and thereby rotate the pulley member for longitudinally advancing or retracting the wire of the Bowden cable relative to the sheath of a Bowden cable.

Abstract: The actuator has a housing with a longitudinal passage between a first end and an opening at a second end. A spindle, supported and moveable in the passage, has oppositely handed, first and second threaded portions each nearer a respective end of the housing. A first nut fixed relative to the housing is engaged with the first threaded portion. The spindle is rotated and moved relative to the first nut by a handle at the housing first end. A second nut fixed against rotation relative to the housing and engaged with the second threaded portion moves relative to and in the same direction as the spindle as the spindle rotates. The second nut is connectable through the opening to a device, and the spindle is rotatable by the handle for adjusting the device by movement of the spindle and the second nut.