| 摘要 |
A motorized window blind includes a mounting frame stretched in a longitudinal direction, a blind screen including a mounted end mounted on the mounting frame, a liftable end opposite to the mounted end in a transverse direction relative to the longitudinal direction, and a flexible intermediate portion interposed therebetween. A motor has an output shaft and is mounted in the vicinity of the mounting frame so as to drive a drive transmitting member to move a distal end of the drive transmitting member in the transverse direction between retracted and extended positions where the distal end is proximate and distal to the mounting frame, respectively. A plurality of tubes are telescopically fitted to each other, and extend in the transverse direction. The tubes include a tail end fixedly mounted relative to the mounting frame, and a lead end opposite to the tail end in the transverse direction and disposed to associate the liftable end with the distal end to move the liftable end when the lead end is driven by the distal end.
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