Brake for a cordless blind

E - Fixed Constructions – 06 – B

Patent

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Details

E06B 9/322 (2006.01) E06B 9/60 (2006.01) E06B 9/90 (2006.01)

Patent

CA 2470497

A window covering including a head rail, a bottom rail, a window covering material extending between the head rail and bottom rail, a first and second lift cords extending between the head rail and the bottom rail, a spring motor configured to bias the bottom rail toward the head rail, mounted in the bottom rail, and operatively coupled to the first and second lift cords, and a brake mounted in the bottom rail and configured to releasably couple to the first lift cord to prohibit the spring motor from taking up the first cord, prohibiting the bottom rail from being raised or lowered.

L'invention concerne un habillage de fenêtre comprenant un caisson, une lame inférieure, un matériau d'habillage de fenêtre s'étendant entre le caisson et la lame inférieure, des premier et second cordons de tirage s'étendant entre le caisson et la lame inférieure, un moteur à ressort conçu pour solliciter la lame inférieure et l'entraîner vers le caisson; lequel moteur à ressort est monté dans la lame inférieure et il est couplé de manière fonctionnelle aux premier et second cordons de tirage, et un dispositif de blocage monté dans la lame inférieure et conçu pour être couplé de manière détachable au premier cordon de tirage afin d'empêcher que le moteur à ressort ne remonte le premier cordon, ce qui empêche également le mouvement ascendant ou descendant de la lame inférieure..

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