| 摘要 |
A ladder drum for selectively positioning the slats of a horizontal blind assembly of the type incorporating tape ladders and string ladders and mounting to a control rod having a non-circular cross-sectional configuration comprises an elongated body having an exterior wall defining a substantially hollow interior. The exterior wall further defines a top body portion and a bottom body portion. The top body portion has one end open and an opposite end closed by a pin wall. The body further defines a longitudinal axis therethrough. The exterior wall of the body defines a longitudinal slot therealong in the top body portion wherein the slot has an open end at the open end of the top body portion for receiving the tape ladder and the string ladder. The exterior wall also defines a notch for receiving the string ladder. The bottom body portion defines a longitudinal recess for receiving the control rod therein.
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