A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A control device comprises an upper fixing plate, a lower fixing plate, a coil spring, and a first gear and a second gear which are arranged between the upper and lower fixing plates. The first and second gears are engaged with each other. Each of the first and second gears has a coil spring fixing portion and a coil fixing portion arranged thereon. When the window blind is pulled up, one end of the coil spring is connected with the coil spring fixing portion of the first gear and the other end of the coil spring is winded around the coil spring fixing portion of the second gear. The gear structure may simplify the structure of the control device. The structure and the driving relation are easier and hard to malfunction and further to reduce the occupied space for being suitable for the window blinds with specific sizes.
A control device comprises an upper fixing plate, a lower fixing plate, a coil spring, and a first gear and a second gear which are arranged between the upper and lower fixing plates. The first and second gears are engaged with each other. Each of the first and second gears has a coil spring fixing portion and a coil fixing portion arranged thereon. When the window blind is pulled up, one end of the coil spring is connected with the coil spring fixing portion of the first gear and the other end of the coil spring is winded around the coil spring fixing portion of the second gear. The gear structure may simplify the structure of the control device. The structure and the driving relation are easier and hard to malfunction and further to reduce the occupied space for being suitable for the window blinds with specific sizes.
CONTROL DEVICE FOR WINDOW BLIND
ZHENG SONG-LI (author)
2018-10-11
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
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FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES