Roman Shade Window Curtain Having Rolling Spool For Multi-Step Retracting/Unfolding Control

A Roman shade window curtain having rolling spool retraction means providing multi-step engagement between the Roman shade and the rolling spool, comprising:

• a. a Roman shade having a rolling spool curtain serving as the retracting and expanding control at the back side, where each of the fold lines on the Roman shade is formed by a delineating rod horizontally clipping a horizontal strip of the fabric to a double-pronged hook, which connects to an auxiliary rod that extends from either side of the window curtain and does not go the full horizontal length of the window curtain;
• and,
• b. a slidable locking mechanism at the bottom end of said rolling spool curtain wherein a round tube is wrapped around the horizontal rigid piece that forms the bottom beam of said rolling spool curtain, and two sliding tubes are placed outside the surface of said round tube, providing the changeable engaging positions for the bottom beam of the rolling spool to the fold lines of Roman shade fabric, when the two sliding tubes are moved towards the center of round tube, allowing the bottom beam to go to a desired pair of auxiliary rods and then moving the sliding tube towards two sides of said window curtain, to engage the sliding tubes to the pair of auxiliary rods, for purpose of controlling how much the Roman shade will be retracting up.