System for operating top down / bottom up covering for architectural openings

摘要

OF A DISCLOSURE A control system (50) for a top down/bottom up covering (52) for an architectural opening includes a common drive shaft (74) for raising and lowering a middle rail (60) and a bottom rail (62) between which a flexible shade material (64) extends. A control element (56) operates a spool lift system (76) and a roller lift system (78) with the spool lift system (76) being associated with the middle rail (60) and the roller lift system (78) being associated with the bottom rail (62). The lift systems are sequentially operated when the drive shaft (74) is driven in either direction by the control element (56). - - - - - - - - - - * 62 66 Fig. 3 7