Single control system for top-down-bottom-up shades

Details Single control system for top-down-bottom-up shades Single control system for top-down-bottom-up shades

E - Fixed Constructions

06

B

E06B 9/48 (2006.01) E06B 9/262 (2006.01)

Patent

CA 2246617

A lift system for top-down, bottom-up window shades operated by a single control is provided. The preferred embodiment of the invention is compatible with, but not limited to, clutch operated shades whose cords are wound onto a shaft within the headrail. It will work with any shade that presently has top- down-bottom-up capability, using any method of lift. The system consists of a headrail (1) and a cord (3, 35, 37) which wraps on a shaft (11) located within the headrail (1). The cord (3, 35, 37) extends from shaft (11) and extends around a series of rollers (15, 17, 19, 21, 43, 45, 47). Rotation of the shaft (11) operates the cord (3, 35, 37) to move rails (5, 9, 27, 31, 47) thereby manipulating fabrics (7, 25, 29).

L'invention porte sur un système de persiennes haut en bas, bas en haut se manoeuvrant par une seule commande. La variante préférée de l'invention est compatible, mais pas exclusivement, avec des persiennes à embrayage dont les tirettes sont enroulées sur un arbre placé dans le rail de tête. Ledit système fonctionne avec toute persienne de type haut en bas, bas en haut, et tout type de dispositif de levage. Le système comporte un rail (1) de tête et une tirette (3, 35, 37) qui s'enroule sur un arbre (11) placé dans le rail (1) de tête. La tirette (3, 35, 37) qui part de l'arbre (11) passe par une série de poulies (15, 17, 19, 21, 43, 45, 47). La rotation de l'arbre (11) agissant sur la tirette (3, 35, 37) déplace les rails (5, 9, 27, 31, 47), ce qui manoeuvre les toiles (7, 25, 29).

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