Collapsible covering for roller or Venetian blind

摘要

The covering comprises a front and back side with rectangular cells. Each cell contained in the covering has a folded side and an opposite facing supporting side. The folded side has folds defined by the material and remains folded. The support side is flat and coplanar with the support sides of the other cells when the covering is pulled out. The material of each cell elastically uses force to fold the support side away from the folded side when the covering is collapsed. Various folded sides press the front and rear sides.