Roller blind for window of parallelogram form - has screw and ball nut to move blind roller axially as it is rotated

摘要

A window in the form of a parallelogram is provided with a roller blind of corresponding shape. The blind (1) is wound onto a roller (6) which has its axis parallel to the horizontal edges of the blind. The roller is supported at one end on a bush (8) which can slide axially on its supporting shaft (33). The other end of the roller (6) is supported on a bush (7) in the form of a ball nut which engages a screw thread (21) on the shaft (16). This screw thread causes the roller to move axially when it is rotated in order to wind up the blind. USE - Roller blinds for windows of parallelogram shape.