Abstract

A rotary actuator has a rotatable platform rotatably supported on a base. The rotatable platform has a friction surface. An actuator band is operated by a band clamp so as to be selectively frictionally engageable with the friction surface. A motion actuator is coupled between the base and the actuator band such that change in length of the motion actuator causes corresponding movement of the actuator band. A brake band is operated by a brake band actuator so as to be selectively frictionally engageable with the friction surface, the brake band anchored to the base.

IPC Classes  ?

• F16H 31/00 - Other gearings with freewheeling members or other intermittently-driving members
• F24S 50/20 - Arrangements for controlling solar heat collectors for tracking
• F16D 49/10 - Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as an encircling band extending over approximately 360° mechanically actuated
• F24S 30/455 - Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes with horizontal primary axis
• H02S 20/32 - Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
• F15B 11/18 - Servomotor systems without provision for follow-up action with two or more servomotors used in combination for obtaining stepwise operation of a single controlled member
• F24S 30/00 - Arrangements for moving or orienting solar heat collector modules