| 摘要 |
A method of manufacturing blow molded products, such as an illuminating globe and a packaging container of a synthetic resin, such as polyethylene terephthalate and polycarbonate by drawing and blow molding an injection molded preform. A gate (15) is set by forming a resin reservoir (17) of a required outer diameter annularly in a parting portion between a cavity mold (11) defining a cavity (14) and a neck mold (12), the gate (15) communicating with an injection passage (18) provided in the parting portion. This enables the injection of a molten resin from the resin reservoir (17) into the cavity (14) to be effected. An injection molded preform (16) having no gate mark on an outer bottom surface thereof is subjected to drawing and blow molding to obtain a blow molded product, such as a gateless illuminating globe (30). <IMAGE> |
