Actuator drive and display mechanism

摘要

The present invention relates to a mechanism for rotatably coupling two coaxial shafts while allowing relative movement of the shafts in the X, Y, Z directions. The mechanism includes a female socket and a male fitting. The female socket is attached to one shaft and contains channels. The male fitting is attached to the other shaft and has arms that fit into the channels of the female socket. The mechanism also drives an external visual indicator. The present invention allows an operator to separate the external visual indicator from the mechanism and then reassemble it without losing rotational position readout of the indicator through the action of two axially aligned cams.