One way brake for a cordless blind

Details One way brake for a cordless blind One way brake for a cordless blind

E - Fixed Constructions

06

B

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

Patent

CA 2480068

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 une couverture de fenêtre comprenant une traverse supérieure, une traverse inférieure, un matériau de couverture de fenêtre s'étendant entre la traverse supérieure et la traverse inférieure, un premier et un second cordon de levage s'étendant entre la traverse supérieure et la traverse inférieure, un moteur à ressort monté dans la traverse inférieure et couplé opérationnellement avec le premier et le second cordon de levage, conçu pour exercer une contrainte sur la traverse inférieure en direction de la traverse supérieure, et un frein monté dans la traverse inférieure et conçu pour venir se coupler temporairement avec le premier cordon de levage de manière à empêcher le moteur à ressort d'enrouler le premier cordon de levage, et à empêcher ainsi le levage ou l'abaissement de la traverse inférieure

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