Patent ID: 6094761
Filing Date: 2000-08-01
Classification: A61G

Abstract:
A blank of a rigid and foldable sheet material for forming a rigid backboard, said blank comprising:a center panel having first and second longitudinal side edges extending from a first longitudinally facing edge to a second longitudinally facing edge;a first intermediate support panel having a first longitudinal side edge coupled to said first longitudinal side edge of said center panel by a first fold line, and having a second longitudinal side edge opposite said first longitudinal side edge;a second intermediate support panel having a first longitudinal side edge coupled to said second longitudinal side edge of said center panel by a second fold line and having a second longitudinal side edge opposite said first side edge;a first end panel having first and second longitudinal side edges, said first longitudinal side edge being coupled to said second longitudinal side edge of said first intermediate support panel by a third fold line;a second end panel having first and second longitudinal side edges, said first longitudinal side edge being coupled to said second longitudinal side edge of said second intermediate support panel by a fourth fold line;said first intermediate support panel having a longitudinal fifth fold line extending substantially parallel to said first and second longitudinal side edges to define first and second leg panels of said first intermediate support panel coupled together by said fifth fold line; andsaid second intermediate support panel having a longitudinal sixth fold line extending substantially parallel to said first and second longitudinal side edges of said second intermediate support panel to define first and second leg panels of said second intermediate support panel coupled together by said sixth fold line.