Control device for electric motor reducer

H - Electricity – 01 – H

Patent

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306/300

H01H 3/42 (2006.01) E06B 9/88 (2006.01) E06B 9/80 (2006.01)

Patent

CA 1136185

ABSTRACT OF THE DISCLOSURE This control device for an electric motor reducer is designed to permit the accurate adjustment of the point at which it is desired to stop the rotation of the unit. For this purpose, it comprises a slide controlling during its movement in one direction and during a first time period the movement of beaks of a rocker in a direction in order to open the motor control switch when said beaks are engaged in notches of cam means. In a second time period, the slide causes a two-armed sliding lever supporting the notched-cam shaft to pivot in a direction, each notched cam being rigidly associated with a heart-shaped cam and with a toothed wheel adapted, when inoperative, to mesh with toothed drive pinions. In a third time period, the slide causes the beaks of the aligning lever to bear against the heart-shaped cams in order to align the notches with the beaks. The pinions remain radially fixed. This device is particularly suited for controlling electric motor reducers for driving rolling shutters, roller-blinds and the like.

350160

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