DISQUE DE COMMANDE DE MINUTERIE

IL COMPORTE DES TAQUETS DE CONTACT 12 A CRANTAGE RADIAL A SA PERIPHERIE. CEUX-CI COMPORTENT DES DOIGTS DE CONTACT 22 PAR LESQUELS UN ORGANE DE COMMUTATION 31 PEUT ETRE ACTIONNE. POUR DIMINUER LA COURSE H DES TAQUETS 12 EN MAINTENANT L'EXACTITUDE DE L'INSTANT DE COUPURE, L'ORGANE DE COMMUTATION 31 TOUCHE RADIALEMENT L'ARETE DE CONTACT 23 DU DOIGT DE CONTACT 22. LE DOIGT DE CONTACT 22 EST GUIDE ENTRE DES PAROIS DE GUIDAGE 26 DU DISQUE 1. SES ARETES MARGINALES 27 AFFLEURENT AVEC LES DOIGTS DE CONTACT 22 EN POSITION DE REPOS ET SOUTIENNENT LES DOIGTS DE CONTACT 22 EN POSITION DE CONTACT. An indexing plate for a time switch including slide contacts at the circumference of the indexing plate which are radially displaceable from an inoperative position to latch into at least one switching position, which incorporate an actuating projection and a switching finger opposite thereto, and which are conducted between the projection and the finger through slots in the indexing plate. The switching fingers are spaced from each other at the circumference of the indexing plate and evidence a rim area and a switching edge, in whose path of movement there is located a switching element of a switch contact in the actuated or switching position. Guide walls are formed on the indexing plate for each switching finger, in that rim edges are provided on the guide wall which, in the inoperative position of every switching finger align essentially planar with the switch edges thereof, and that in the switched-on position of every switching finger, the switch edge thereof will radially overhang the rim edges, and of which the rim region is located intermediate the guide walls. Inasmuch as the switch element radially contacts the switch edge, the lift of the slide contacts can be small from their inoperative position into a switching position.