Anti-Backlash Gear Drive.

摘要

In a gear train where there is backlash, the backlash is prevented by a gear drive which includes an anti-backlash driven pinion which is mounted on, or is otherwise connected to, a torsion spring shaft that is adjustable for twisting, and thereby, loading the anti-backlash driven gear. This invention pertains to an anti-backlash gear drive that is adapted for use with a gear train which includes a rotatable first driver gear (such as the drive pinion of an elevation actuator assembly in a tracking system), a movable toothed driven member (such as the elevation sector gear of such a tracking system) that is engaged with the first driver gear, and a source of rotary motion driving power (such as an electric drive motor) to which is connected a rotatable second driver gear, where the source of rotary motion driving power can be selectively activated (such as with a switch intermediate the motor and the source of electric power) and, when activated, rotates the second driver gear.