Umschaltvorrichtung,insbesondere fuer Tarifgeraete und Schaltuhren

摘要

1387204 Counting apparatus SIEMENS AG 23 March 1972 [23 March 1971] 13753/72 Heading G4D [Also in Divisions F2 and H1] A drive is engaged or disengaged by means of a flexible piezo-electric actuator 9. In Fig. 1 two counters 1, 2 displaying two tariffs are alternatively connected to a drive gear 5 mounted on a pivoted lever 6. Flexing of the actuator 9 by applying a voltage at 11 causes it to tilt lever 6 against spring 12. In Fig. 2 (not shown), the actuator is used to disengage a maximum demand drive allowing the pointer to reset under spring action. In Fig. 3 (not shown) application of voltage to the actuator causes a clock drive to be transferred from a spring reserve to a synchronous motor drive in a time switch.