Multi-panel display project board whose panels pivot between fully folded and fully deployed orientations and whose header panel pivots between fold-in and fold-out orientations

摘要

A multi-panel display project board with a center panel between two side panels and with a header panel movable between a fold-in position and a fold-out position. Each panel has a medium sandwiched between two linerboards. Creases between the panels are formed by slitting linerboard beneath the creases. The side panels may be spread apart to define obtuse angles relative to the central panel and yet retain their position on their own when erected on a flat surface. The header panel has a long segment separated from two shorter segments by segment creases. When the header panel is in the fold-in position after pivoting from a fully folded orientation about panel creases, the shorter segments define respective obtuse angles with the long segment. In the fold-out position after pivoting the header panel about additional creases, the shorter segments define respective reflex angles instead.