Press-molded product with reinforcing ribs and a method of manufacturing the same

摘要

Without increasing the thickness, strength, to improve the rigidity, to provide a press-molded article to have a method and reinforcing ribs readily form ribs as reinforcing material to the press molded product. Method for producing a press-molded product having a reinforcing rib according to the present invention, wherein the press molding step of co-pressing a respectively arranged reinforcing ribs and sheet-like thermoplastic substrate in a press mold, the reinforcing ribs , and a fibrous sheet material which thermoplastic substrate and a plurality of fiber ribs are coupled integrated are stacked, it is integrally formed to have a junction portion bonded to the reinforcing rib body portion and a sheet-like thermoplastic substrate made, fibrous sheet material, having a gap between the adjacent fibers, in the press molding step, enters the voids of the fibrous sheet material portion of heat softened sheet-like thermoplastic substrate is positioned at the joining portion fixed is is that and said.