Cushioning insert

A cushioning insert, formed of a unitary blank of foldable paperboard, for providing an air cell to protect articles packaged within an outer container having bottom, side and end walls, comprising:

• (a) a pair of co-planar, main panels aligned with each other in side by side relation, and adapted to be positioned within an outer container in spaced parallel relation with an end wall thereof;
• (b) a pair of relatively narrow side panels foldably joined at their inboard side edges to adjacent outer side edges of respective main panels and adapted to be positioned within an outer container adjacent respective side walls thereof between said insert main panels and a related end wall of an outer container;
• (c) a pair of relatively narrow center panels foldably joined at their outboard edges to each other and at their inboard side edges to adjacent inner side edges of respective main panels;
• (d) an integral support member for maintaining said center panels in parallel relation with said side panels and in normal relation with said main panels, comprising:
• (i) a pair of generally triangular, vertical, flange elements foldably joined at lower side edges to lower edges of respective main panels along downwardly diverging fold lines;
• (ii) a pair of generally rectangular, horizontal flange elements foldably joined at inboard side edges to upper edges of respective vertical flange elements and foldably joined at other adjacent side edges to lower edges of respective center panels.