WINDOW SHADE AND SPRING DRIVE SYSTEM THEREOF

A spring drive system for a window shade includes a housing, a first and a second gear engaged with each other and respectively assembled about a first and a second pivot axis, two springs respectively assembled at two opposite sides of the second gear and respectively connected with two take-up ree...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	HUANG, Chin-Tien
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES LADDERS
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