A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BALANCED FOLDING/UNFOLDING DEVICE FOR A SHADE UNIT OF A WINDOW SHADE WITHOUT A PULL CORD
A balanced folding/unfolding 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 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 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 the shade unit.
BALANCED FOLDING/UNFOLDING DEVICE FOR A SHADE UNIT OF A WINDOW SHADE WITHOUT A PULL CORD
A balanced folding/unfolding 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 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 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 the shade unit.
BALANCED FOLDING/UNFOLDING DEVICE FOR A SHADE UNIT OF A WINDOW SHADE WITHOUT A PULL CORD
HUNG SHIH-MIN (author)
2016-10-06
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
Control Device for a Shade Unit of a Window Shade without a Pull Cord
| European Patent Office | 2018
STRING COILING UNIT FOR A WINDOW SHADE WITHOUT A PULL CORD
| European Patent Office | 2017