MX9705765A - Motorized reversible venetian blind. - Google Patents

Abstract

Motorized reversible venetian blind of the type constituted through a plurality of sheets linked between each other through a hook and a channel end that run by a labyrinthic travel channel conformed in the internal face of side path plates mounted in correspondence with the ends of the venetian blind box, each sheet including at its ends a piece with lateral appendixes and distants between them for the insertion between the same of the corresponding teeth giving piñons mounted in established points of the labrynthic travel channel, for the tow of the sheets which in their roaming by said labyrinthic travel channel show a face in a displacement direction and the opposite face in the other displacement direction, with which the reversability character of the same are found. Between both side plates a polygonal configuration tubular axis is placed which is worked in turn by means of an internal motor with the particularity in that in the ends of said tubular axis the crowns are welded which engage and work some piñons in which axis the tow piñons of the sheets are mounted, the crowns being situated and the piñons that engage with them in the external face of the side plates; having provided that the deactivation and corresponding ceasure of the running motor in the limit positions of closure and opening of the blind, is established from three placed micro-ruptors, two of them in the entrance of the labyrinthic trip channel and the other in the exit of the labyrinthic trip channel. The foreparts of the venetian blind box include subjection means for a special piece and of general prismatic configuration which constitutes in the lower part of each side, the vinculation means between the foreparts and the vertical guide profiles which roam the venetian blind beforehand and afterhand to the labyrinthic travel, constituting said piece furthermore, the immobilization means of the given plates of the labyrinthic travel; having been provided that the referred foreparts also count on its internal face with profile pairs, one upper and the other lower, in which the channels are conformed which allow the assembly by displacement in the interior of the box of the monoblock assembly formed by the venetian blind, side plates of the labyrinthic travel, operating axis and transmission means and corresponding tow.