Invention Grant
US09127500B2 Cord-winding device for venetian blind 有权
用于百叶帘的绕线装置

Cord-winding device for venetian blind
Abstract:
A cord winding device for a Venetian blind includes a receiving unit, a resilient driving unit mounted in the receiving unit, a braking unit mounted in the receiving unit and adjacent to the resilient driving unit, and a unidirectional damping unit mounted in the receiving unit. Through cooperation between the braking unit and the resilient driving unit, during winding and unwinding of pull cords, a bottom rail can be descended slowly and stopped conveniently at any desired height.
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