ROTATIONAL CONTROL APPARATUS WITH VARIABLE ACTUATION METHODS

摘要

Apparatus (10) for controlling rotation of an input (12) in the most preferred form of a brake includes a housing (50) which can be positioned in either first or second positions. In the first position, a piston (66) moves out of its cavity (64) in the housing (50) and forces a plate (76a) including the piston (66) and an interface facing (80) toward an interface disc (20) while a release spring (92) located in a countersink (74) acts on a fastener (98) to move the first plate (76a) away from the interface disc (20). When flipped to the second position, the piston (66) moves out of its cavity (64) in the housing (50) and forces a second plate (76b) interconnected to the first plate (76a) away from the interface disc (20) while engaging springs (90) sandwiched in cavities (70) between the housing (50) and the first plate (76a) including the interface facing (80) force the first plate (76a) toward the interface disc (20). Thus, apparatus (10) can be assembled to be either fluid engaged or fluid released from the same components, with the use of the same components to construct rotational control apparatus (10) with different actuation methods resulting in lower component fabrication and inventory costs.