Foldable card-board seat - has blank with two flat sides and two folding sides, interlocked by flaps and notches

摘要

The cardboard seat is lightweight and can be stored flat and easily assembled. The seat is from a cut-out piece of cardboard and consists of a circle with two flat sides (2,3) and two folding sides, alternating with each other, and forming the side of the seat. The flat surfaces support two flaps (12,13) each of which have a section (14,15) which folds back towards the inside of the seat. The folding sides have a notch (30,32) in the middle of their fold line (6,7), into which fit the two tabs.