| 摘要 |
<p>The present invention relates to a lift mechanism for a Venetian blind of the type that comprises pairs of lift cords (5) for raising or lowering the slats (7) of the Venetian blind. The lift mechanism according to the invention comprises two cone or drum portions (2, 3), upon an outer circumferential surface of one (2) of these portions one lift cord of a given pair of lift cords is wound upon rotation in one direction of the drum portion (2) and from which the lift cord is unwound upon rotation in the opposite direction of the drum portion (2) and upon an outer circumferential surface of the other (3) cone or drum portion the other lift cord of a given pair of lift cords is wound upon rotation in one direction of this other drum portion (3) and from which the lift cord is unwound upon rotation in the opposite direction of this drum portion (3).</p> |
