PLASTIC-INTEGRATED HINGE AND MOLDING THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a plastic-integrated hinge requiring no high surface pressure in the molding of the hinge and capable of being molded even by a molding machine lower in mold clamping force and a method for molding the same. SOLUTION: In a plastic-integrated hinge 21 and a method for molding the same, a groove part having an almost U-shaped cross section is formed so as to protrude from the predetermined molding surface 23 of the plasticized plastic molded product 22 arranged toward the surface of a mold 31 and at least one vertical side surface 25 of this groove part is formed into a thin-walled state. In the molding method, one mold 31 having a groove line 31a with predetermined width and depth provided thereto and other mold 32 having a projected insert part 32a provided thereto so as to be inserted in the groove line 31a are provided and a contact part 23a pushed in toward the groove line 31a of the predetermined molding surface 23 of the molded plasticized plastic molded product 22 to perform molding so that the part between the molding surface 23 and the contact part 23a is stretched to be reduced in its wall thickness.