Articles of unitary moulded-plastics sheet construction
OwnerStephen Michael Kuesterinventor
Life of this patent
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Abstract
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 (1). A hinged lid (31) with hinged-down rim (34) may be formed integrally with the box.
Claims11
An article of unitary moulded-plastics sheet construction which is convertible between a three-dimensional erect state and a substantially-flat, folded state, the sheet incorporating a multiplicity of flexible membrane portions located between and integral with spaced parts of the sheet to define hinges for enabling those parts to be deflected angularly with respect to one another in conversion between the two states.
Dependencies are inferred from the claim text.