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A platform for research: civil engineering, architecture and urbanism
Dual-torsion-spring cord rolling device for window blind without exposed pull cord
A dual-torsion-spring cord rolling device includes driving and transmission units. The driving unit has first and second torsion spring gears engaged with each other, a first torsion spring connecting the first and second torsion spring gears, a wheel adjacent to the first torsion spring gear, and a second torsion spring connecting the second torsion spring gear and the wheel. The transmission unit has first and second transmission gears rotatable synchronously by the driving of the second torsion spring gear, and two lift transmission cords attached to the first and second transmission gears respectively.
Dual-torsion-spring cord rolling device for window blind without exposed pull cord
A dual-torsion-spring cord rolling device includes driving and transmission units. The driving unit has first and second torsion spring gears engaged with each other, a first torsion spring connecting the first and second torsion spring gears, a wheel adjacent to the first torsion spring gear, and a second torsion spring connecting the second torsion spring gear and the wheel. The transmission unit has first and second transmission gears rotatable synchronously by the driving of the second torsion spring gear, and two lift transmission cords attached to the first and second transmission gears respectively.
Dual-torsion-spring cord rolling device for window blind without exposed pull cord
CHEN HUNG-HAO (author) / TSAI MING-CHE (author)
2021-04-20
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
/
B65H
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
,
Handhaben von dünnem oder fadenförmigem Gut, z.B. Folien, Bahnen, Kabeln
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