ES272495U - Control device for motorcycle-reducer electrical. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Contrl device for electric motor-reducer, intended for the rotation drive of a rotating shutter winding bar, spring curtain or the like, comprising at least two cams arranged side by side on the same axis in which they are susceptible of freely pivoting, cams whose respective outer profiles each comprise a single notch, all the notches being able to cooperate at the same time with a control element of a motor switch, the first cam being linked cenematically to the motor by a reducer, means to rotate constantly at a speed that is relatively fast, and which supports at least two transport teeth susceptible, in each of its turns, to drive in a fraction of a turn the indentation of a toothed pinion pivoted on an axis parallel to that of the cams, this pinion being toothed pinned constantly to the second cam, characterized in that it comprises a second toothed pinion laterally secured to the idler sprocket, which cooperates constantly with a sprocket secured laterally of the second cam, this second toothed pinion and this sprocket having tooth numbers such as the respective notches of the first continuously rotating cam and the second cam that rotates step by step only cooperate again with the control element of the switch at the same time, when the second cam has performed step by step a number n of whole turns, at least equal to two, during which it has effected n whole steps, not n being a multiple of n, while the first cam made n whole turns. (Machine-translation by Google Translate, not legally binding)