FOLD STRUCTURE FOR CORRUGATED FIBERBOARD AND THE CORRUGATED FIBERBOARD FOR FORMING LAMINATE

摘要

PURPOSE: To provide a fold structure formed at a corrugated fiberboard by accurately mechanically processing a V-shaped fold to be bent in a V shape along the design and to provide the corrugated fiberboard for forming a laminate to form the laminate along the design. CONSTITUTION: V-shaped folds 12 so formed at a corrugated fiberboard 1 as to cross perpendicularly to corrugations 10 or at an angle except the perpendicular angle are alternately disposed along the fold direction, formed of hinges 12a of a predetermined length partly collapsed at the fiberboard 1 and cut parts 12b of a predetermined length passed through the fiberboard 1, and auxiliary cut parts 12c passed through the fiberboard 1 substantially in a crest state or a one side arrow state planely directed toward the adjacent hinges 12a and passed through the fiberboard 1 continued to the cut parts 12c are formed at the ends of the parts 12b.