| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a blow molding method of a plastic bottle capable of molding the plastic bottle having durability even in a profile shape having a recessed part depressed in an axial direction formed to one side part thereof and having a handle in the recessed part. <P>SOLUTION: The mouth part (10b) of a primary molded product (10) molded into a bottomed cylindrical shape is connected to the air blowoff part (13) of a mold and, after the whole region excepting the mouth part (10b) of the primary molded product (10) is heated to a molding temperature, a cooling body (15) is brought into contact with the peripheral wall (10d) of the primary molded product (10) becoming the handle holding part (2b) of a product to lower the temperature of the peripheral wall (10d) by predetermined quantity. A mold (16), which has a recessed part molding part (16a) protruded in the axial direction of the mold provided to one side thereof and has a rod-shaped handle 4 arranged to the base part of the recessed part molding part (16a), is provided to be fitted to the primary molded product (10) while the recessed part molding part (16a) is opposed to the peripheral wall of the primary molded product (10) of which the temperature is lowered and compressed air is supplied to the primary molded product (10) while heating the protruded end part in the axial direction of the recessed part molding part (16a) to expand the primary molded product (10). <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
