Rotary steeping switch with axially stacked switching elements - has stationary contact pairs whose ends are angled to retain contact balls

摘要

The switch has stators formed by interengaging insulating rings with embedded stationary contacts, protruding radially inwards. Pairs of such contacts are mounted opposite each other and can be bridged by moving contacts in rotors formed by axially stacked insulating cylinders with central bore. The inwards pointing ends (53, 63, 73, 83) of each stationary contact pair (50, 60, 70, 80) form an angle retaining a contact ball (120, 130). - The rotors are positively interengaged, one being connected firmly to a drive shaft (140). The stators (10, 20, 30, 40) are clamped together by an assembly pin (90) in the central bore of the rotors. One pin end is rotatably mounted at the drive shaft, while its other end is connected to a disc (200) abutting the stators from outside.