RETENTION SYSTEM FOR OPERABLE FLEXIBLE SHADES

摘要

A retention system for operable flexible shades. The system includes a flexible sheet of a size which substantially covers a wall opening, and which is connected at its top edge to an operable roller. A side casing having a channel is mounted at each side edge of the wall opening. A plurality of generally parallel stays is applied to one of the opposing surfaces of the sheet for providing rigidity to the sheet, and to assist in keeping the edges of the sheet within the channels when a positive pressure is applied to the sheet. A grommet sized to remain within a channel during the rolling and unrolling of the sheet is affixed at each end of at least some of the stays.