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Control Device for a Shade Unit of a Window Shade without a Pull Cord
A control device includes a top housing having a first string hole and a second string hole. A reverse winding portion and forward winding portion are mounted in the top housing. A vortex spring unit is mounted in 5 the top housing and includes a first spring mechanism directly or indirectly connected to a first end of a first driving string and a first end of a second driving string. The first driving string and the second driving string extend in the same function. A second end of the first driving string extends around the forward winding portion and then passes downwards through the first 10 cord hole for connection with a shade unit of a window shade without a pull cord. A second end of the second driving string extends around the reverse winding portion and then passes downwards through the second cord hole for connection with thes hade unit.
Control Device for a Shade Unit of a Window Shade without a Pull Cord
A control device includes a top housing having a first string hole and a second string hole. A reverse winding portion and forward winding portion are mounted in the top housing. A vortex spring unit is mounted in 5 the top housing and includes a first spring mechanism directly or indirectly connected to a first end of a first driving string and a first end of a second driving string. The first driving string and the second driving string extend in the same function. A second end of the first driving string extends around the forward winding portion and then passes downwards through the first 10 cord hole for connection with a shade unit of a window shade without a pull cord. A second end of the second driving string extends around the reverse winding portion and then passes downwards through the second cord hole for connection with thes hade unit.
Control Device for a Shade Unit of a Window Shade without a Pull Cord
HSU SHENG-YING (author) / HSU CHUN JAN (author)
2018-11-01
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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