ARTICLES OF UNITARY MOULDED-PLASTICS SHEET CONSTRUCTION

摘要

A foldable-box container is formed by injection moulding to have its side-walls (1,2) joined to one another and to its base (3) by integrally-formed membrane hinges (21-23). Membranes (24) divide the sides (2) to enable hinging of halves (2a,2b) of the side (2) onto one another back to back between the sides (1). The base (3) folds outwardly on diagonal membranes (26, 29) and inwardly on membranes (28) bringing parts (3a) back to back between parts (3b); the folding of the base (3) may be inverted to fold it inside the sides 81). A hinged lid (31) with hinged-down rim (34) may be formed integrally with the box.