Waterproof control knob assembly with integral switch

摘要

A rotatable control with an integral switch comprises conductive inner and outer shaft in a concentric configuration. The inner and outer shaft are electrically insulated from one another and frictionally coupled to allow concentric simultaneous rotation. The assembly is covered with a flexible insulating shroud which has a switch contact located on the upper interior surface thereof. Conductive spring members are clipped around the lower portion of the inner and outer shaft to allow electrical connection to a circuit board.