INJECTION MOLDING, MANUFACTURING METHOD THEREFOR AND MOLD FOR INJECTION MOLDING

摘要

PROBLEM TO BE SOLVED: To eliminate a work for after-attaching an electric bulb 3 and a terminal 7 with the use of a socket when a turn signal 1 is molded by a die slide injection system. SOLUTION: The step to build the electric bulb 3 and the terminal 7 in a housing 4 is set up before the step to slide a die and injection-form the lens part 2 and the housing 4 butted to each other following the step to separate a first mold 9 and a second mold 10 by which the lens part 2 and the housing part 4 are injection-molded as semi-finished products. Thus it is possible to eliminate the work for after-attaching the electric bulb 3 and the terminal 7 and mold the turn signal 1 in which the electric bulb 3 and the terminal 7 are inserted.