Patent ID: 7971741
Filing Date: 2011-07-05
Classification: B29C,B65D

Abstract:
1. A folding box made of a synthetic resin which turns into a hexahedral box when it is assembled into a box form, said folding box comprising: a rectangular-tube shaped side wall configuration member which becomes a rectangular or square shape in a plan view in a state where the folding box is assembled into a box form, said rectangular-tube shaped side wall configuration member being comprised of four side panels made of hard synthetic resin for constructing front/rear/left/right side surfaces, and adjacent side ends of said four side panels being foldably connected to each other through side panel connecting hinge parts, said rectangular-tube shaped side wall configuration member being configured to be able to be folded flatly by folding said side panels into an approximate parallelogram form in such a way that each corner of one pair of diagonal corners becomes an acute angle and each corner of the other pair of diagonal corners becomes an obtuse angle; a bottom plate configuration member which is to be a bottom of the folding box when the folding box is assembled into the box form, said bottom plate configuration member being comprised of connecting bottom pieces made of hard synthetic resin which are foldably connected to bottom ends of the plurality of side panels through bottom piece connecting hinge parts, a lid configuration member which is to be a lid of an upper surface of the folding box when the folding box is assembled into the box form, said lid configuration member being comprised of lid pieces made of hard synthetic resin which are foldably connected to upper ends of the plurality of side panels through lid piece connecting hinge parts, wherein said side panel connecting hinge part, said bottom piece connecting hinge part, and said lid piece connecting hinge part are made of soft synthetic resin, both ends of each hinge part being integrated, in overlapping relation, with outer surfaces of said side panel, said bottom piece, or said lid piece, which are made of the hard synthetic resin, by using two-color molding of synthetic resins so that they are flush with the outer surfaces or they jut out from the outer surfaces, said soft synthetic resin of each hinge part which is integrated, in overlapping relation, with the outer surfaces of said side panel, said bottom piece, or said lid piece which are made of the hard synthetic resin being exposed to the outside in neighborhood of an edge of the hexahedral box on either or both of the surfaces of the hexahedral box which are adjacent to each other at right angles through the edge of the hexahedral box when the folding box is assembled into the hexahedral box so as to form a nonslip part, said nonslip parts being formed in neighborhood of every edge of the hexahedral box.