Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
POSITIONING STRUCTURE FOR CORDLESS WINDOW BLIND
A positioning structure for cordless window blind comprise a lower case, a driving gear wheel, a driven gear wheel, a coil spring, two pull-cord gear wheels, two one-way resistance wheels, and an upper case. The two one-way resistance wheels are arranged on the lower case and respectively adjacent to the two pull-cord gear wheels. Each one-way resistance wheel has a resistance block and an elastic member. The resistance block has two polygonal holes. One end of the elastic member is fastened to the resistance block. The two pull cords are respectively fastened to the two pull-cord gear wheels and respectively winded around the two one-way resistance wheels at least one loop. The upper case has two polygonal posts which are respectively inserted into the two polygonal holes.
POSITIONING STRUCTURE FOR CORDLESS WINDOW BLIND
A positioning structure for cordless window blind comprise a lower case, a driving gear wheel, a driven gear wheel, a coil spring, two pull-cord gear wheels, two one-way resistance wheels, and an upper case. The two one-way resistance wheels are arranged on the lower case and respectively adjacent to the two pull-cord gear wheels. Each one-way resistance wheel has a resistance block and an elastic member. The resistance block has two polygonal holes. One end of the elastic member is fastened to the resistance block. The two pull cords are respectively fastened to the two pull-cord gear wheels and respectively winded around the two one-way resistance wheels at least one loop. The upper case has two polygonal posts which are respectively inserted into the two polygonal holes.
POSITIONING STRUCTURE FOR CORDLESS WINDOW BLIND
CHENG SUNG-PO (Autor:in)
28.02.2019
Patent
Elektronische Ressource
Englisch
IPC:
B65H
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
,
Handhaben von dünnem oder fadenförmigem Gut, z.B. Folien, Bahnen, Kabeln
/
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