| 摘要 |
The invention relates to a venetian blind device which can be integrated into a double glazing unit, including a hoist device (P) for driving a pull cord (F1) serving as both a guiding cord and a deployment cord for the venetian blind, said hoist device (P) comprising: first and second worms (V1, V2) interconnected by means (RT) for transmitting an axial rotation movement; and at least two carriages (Ch1, Ch2, Ch3), each carriage being respectively engaged with one of the worms (V1, V2) and designed to be moved irreversibly in translation by the rotation of said worm (V1, V2), whereby the second worm (V2) is provided to engage with a motorised (MO, RE; MOI) or manual drive device and the carriages (Ch1, Ch2) form therebetween a hoist for the above-mentioned pull cord (F1). |
