Roller picture wall for use with projector has winding shafts movable from stowed position flush with/adjacent to pillar into operating position separate from vertical pillar in which picture wall is stretched between winding shafts

摘要

The device (2) has a picture wall that can be unwound from a stowed position into a operating position and a central vertical holding pillar for supporting two winding shafts on both sides of the pillar, whereby the winding shafts can be moved from a stowed position flush with or adjacent to the pillar into at least one operating position separate from the pillar in which the picture wall is stretched between the winding shafts.