Patent attributes
In the present invention, a plurality of panel members are supportingly retained in a first holding plate, with each of the panel members being arcuately pivotable relative to the holding plate. In addition, a second, movable plate is cooperatively associated with the panel members for being longitudinally movable along the length of the panel members while securely retaining and being cooperatively associated with each panel member. In this way, the second, movable plate is quickly advanced from a first position in direct association or engagement with the first holding plate into a second position wherein the second, movable plate is extended away from the first holding plate substantially the full length of each panel member. When in this second position, each panel member is fixed in a locked and fully erect position.