Pull down, push up, shade assembly

E - Fixed Constructions – 06 – B

Patent

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Details

E06B 9/322 (2006.01) E06B 9/262 (2006.01)

Patent

CA 2549110

A collapsible window covering capable of height adjustment, comprising, in combination, an upper elongated support, a lower elongated member that is adjustable up and down, and control lines extending downwardly to suspend said lower elongated member. A primary rotor structure at the upper elongated support entrains the lines. Dual rotary members act on the lines to exert a counterbalancing suspension force on the lines at different window covering height adjusted levels. One dual rotary member exerts tensioning force on the lines and there is an S-shaped spring coupled to the dual rotary member acting to urge the one rotary members in a direction for winding the lines on the one rotary member. The upper elongated support includes a straight channel with a receptacle in the channel in which the dual rotary members and the spring are protectively carried. The channel orients the receptacle so that the lines in the channel remain substantially aligned with the one rotary member in the receptacle.

Il s'agit d'un couvre fenêtre à déroulement à hauteur réglable, qui comprend, en combinaison, un support allongé supérieur, un élément allongé inférieur réglable en haut et en bas, et des cordes de commande allant vers le bas pour suspendre ledit élément allongé inférieur. Une structure de rotor primaire au support allongé supérieur entraîne les cordes. Des éléments rotatifs jumelés agissent sur les cordes pour exercer une force de suspension équilibrante sur les cordes, aux différents niveaux de réglage en hauteur du couvre fenêtre. Un élément rotatif jumelé exerce une force de tension sur les cordes, et un ressort en S accouplé à l'élément rotatif jumelé agit pour que l'un des éléments rotatifs tourne dans un sens pour enrouler les cordes sur l'élément rotatif concerné. Le support allongé supérieur comprend une glissière avec un réceptacle dans lequel les éléments rotatifs jumelés et le ressort sont portés et protégés. La glissière oriente le réceptacle, de sorte que les cordes dans les glissières restent sensiblement alignées avec l'élément rotatif dans le réceptacle.

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