| 摘要 |
PURPOSE:To constitute the title method so that a sink is not generated in a designed surface by obtaining sufficient adhesive strength between a main body part and terminal part of a decorative molding, by a method wherein the terminal part is injection- molded by inserting a member expanding a tip surface of a decorative molding main body outwardly into a rear side of a position close to a tip part of the main body part of the decorative molding. CONSTITUTION:A protrusion 10a pressing a tip surface 1a of a decorative molding main body part 1 by inserting into the rear of the decorative molding main body 1 is provided on a bottom force 10A. The protrusion 10a of the bottom force 10a of the bottom force 10A is inserted into the decorative molding part 1, a fixed synthetic resin material is cast through a fixed injection molding pressure into a cavity 11 of a terminal part 2 formed of the bottom force 10A, a bottom force 10B and the tip surface 1a and the terminal part 2 is formed on the side end surface 1a of the decorative molding main body part 1. The terminal part 2 becomes moldable without bending the tip surface 1a of the decorative molding main body part 1 inward of the decorative molding main body part 1. A joint area 2a of the terminal part 2 becomes a smooth vertical plane free from unevenness, a change in volume in the vicinity of the joint area 2a of the terminal part 2 is almost unified and it does not happen that a sink is generated in a designed surface side of the terminal part 2. |
