Door leaf for use in building has flexible frame which can swing between open and closed position and can change shape with multiple leaves pivoted together at their edges

摘要

The door leaf assembly is flexible so that it may adopt a straight configuration or may be curved in either direction. There are flexible frame members (13) at the top and bottom with a central reinforcing layer (16) holding the top and bottom ends of vertical members. The vertical members are alternate circular rods and rectangular members with their edges shaped as semicircular grooves into which the rods can fit. The rectangular members can pivot on the rods. The door may be of tapered profile as seen from above and is covered on both sides with a flexible foil or fabric (15).