Patent ID: 6579486
Filing Date: 2003-06-17
Classification: B29C,B29L,F02M,F05C

Abstract:
A manufacturing method for a resin product comprised of a plurality of separate pieces and having a flange, the plurality of separate pieces including one as a separate piece having a flange corresponding to the flange of the resin product, comprising:primary-injection-molding the plurality of separate pieces, including the separate piece having the flange, by a primary injection of a resin; and having respective separate planes of the plurality of separate pieces in abutment, joining the separate pieces together to mold the resin product having the flange by a secondary injection of a welding resin, wherein when molding the plurality of separate pieces, including the separate piece having the flange, by primary injection of the resin, a gate part, to which molding material is injected to mold the flange of the separate piece having the flange, is positioned inside the flange to be part of the flange.