PUSH-BUTTON TYPE PULSE GENERATING SWITCH

摘要

The pulse generating switching device of a push-button switch provides a number of pulses during the returning stroke of an actuating shaft. A second switching device, electrically in parallel to the pulse generating switching device, provides an end pulse. The two switching devices are series connected to an interrupting resetting switching device. The pulses and the end pulse are generated when the resetting switching device closes during the back stroke of the actuating shaft. The pulse generating switching device contains the actuating shaft axially displaceable in a housing. The side surface of the actuating shaft lower part carries a common contact, while the remaining side surfaces of the shaft carry interrupting contact groups in connection with the common contact.