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A platform for research: civil engineering, architecture and urbanism
CORD WINDING STRUCTURE FOR CORDLESS BLIND
A cord winding structure for cordless blind is assembled in a cordless blind. A cord winder includes an upper case and a lower case which are respectively arranged a plurality of columns and posts and combined with each other by bolts. At least one winding wheel for winding a bearing rope, a driving wheel, and a driven wheel arranged corresponding to the driving wheel are assembled to the columns. The driving wheel, the driven wheel, and the winding wheel are respectively formed a gear-like driving portion. The gear-like driving portions of the wheels are engaged with one another. The driving wheel has a gradient coil spring which has different curvatures to result in a front end with weaker elasticity and a rear end with stronger elasticity. The front end of the gradient coil spring is winded on the driven wheel to make the cordless blind correctly be operated.
CORD WINDING STRUCTURE FOR CORDLESS BLIND
A cord winding structure for cordless blind is assembled in a cordless blind. A cord winder includes an upper case and a lower case which are respectively arranged a plurality of columns and posts and combined with each other by bolts. At least one winding wheel for winding a bearing rope, a driving wheel, and a driven wheel arranged corresponding to the driving wheel are assembled to the columns. The driving wheel, the driven wheel, and the winding wheel are respectively formed a gear-like driving portion. The gear-like driving portions of the wheels are engaged with one another. The driving wheel has a gradient coil spring which has different curvatures to result in a front end with weaker elasticity and a rear end with stronger elasticity. The front end of the gradient coil spring is winded on the driven wheel to make the cordless blind correctly be operated.
CORD WINDING STRUCTURE FOR CORDLESS BLIND
ZHENG SONG-LI (author)
2018-08-16
Patent
Electronic Resource
English
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
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