| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a synthetic resin container (4), with a grip connected with a predetermined region, which can certainly avoid the excess stretching of a preform (40) in a region with which the grip(2) is connected. SOLUTION: A stretching rod (46) of such a slender cylindrical shape that a plurality of jet holes (50) are arranged at an interval axially and also, circumferentially, is used. The molded part (44) of a preform is blown by feeding a high pressure gas into the stretching rod (46) and jetting the high pressure gas from the jet holes (50). COPYRIGHT: (C)2009,JPO&INPIT |
