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US 5,474,230 AGranted
Folding box
AssigneesHitachi Kasei Shoji Co., Ltd., Masakatu Yotukura
InventorMasakatu Yotukura
Life of this patent
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Abstract
A folding box includes a pair of opposed first side walls each foldable along a vertical direction, a pair of opposed second side walls, and a pair of bottom plates. Each bottom plates includes a central trapezoidal portion and a pair of triangular portions hingedly connected respectively to opposite sides of the trapezoidal portion. With this construction, the box made, for example, of a corrugated board can be folded into a compact size, so that the area of the folded box is small.
Claims4
A folding box comprising:
- first side walls each inwardly foldable at a vertically-extending hinge provided at a central portion thereof;
- second side walls connected to said first side walls, said second side walls having end portions disposed generally perpendicularly to a remainder of said second side walls, so that said second side walls have a generally U-shaped cross-section;
- and
- two bottom plates each including a trapezoidal portion and a pair of triangular portions hingedly connected at respective folding lines to opposite side edges of said trapezoidal portion, said trapezoidal portions being hingedly connected respectively to a lower edge of said second wall portions, said triangular portions of each of said bottom plates being hingedly connected respectively to lower edges of said first side walls, and a boundary between said two bottom plates being disposed in registry with said central hinges of said first wall portions.
1 more element
Dependencies are inferred from the claim text.