COVERING FOR AN ARCHITECTURAL OPENING HAVING NESTED ROLLERS

摘要

A covering for an architectural opening is provided. The covering may include an outer roller, an inner roller received within the outer roller, a first shade secured to and adapted to be wrapped around the outer roller, and a second shade secured to and adapted to be wrapped around the inner roller. The outer roller may define an elongated slot through which the second shade extends and retracts. Opposite ends of the inner roller may be aligned with corresponding ends of the outer roller. A mounting system may support the inner and outer rollers for rotative movement about a central longitudinal axis of the inner roller. A bottom rail of the second shade may engage the outer roller when the second shade is in the fully retracted position. Rotation of the inner roller when the second shade is in a retracted position may cause rotation of the outer roller.

主权项

1. A covering for an architectural opening, comprising:
an outer roller having a central longitudinal axis and an elongated slot formed through a sidewall, the elongated slot extending between ends of the outer roller; an inner roller having a central longitudinal axis and received within the outer roller, the inner roller having ends that are aligned with the ends of the outer roller; a first shade secured to and adapted to be wrapped around the outer roller; a second shade defining a bottom rail and secured to and adapted to be wrapped around the inner roller; a mounting system supporting the inner and outer rollers for rotative movement about the central longitudinal axis of the inner roller; the second shade extending through the elongated slot and being retractable onto and extendable from the inner roller there through, the bottom rail engaging the outer roller when the second shade is in the fully retracted position; an operating mechanism for selectively rotating the inner roller; and the rotation of the inner roller when in the retracted position causing the rotation of the outer roller.