| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing apparatus of a connection part for a fuel tank capable of preventing the outflow of a synthetic resin material injected by secondary injection molding in two-color injection molding to improve the appearance of the connection part for the fuel tank. SOLUTION: This connection part for the fuel tank is attached to the fuel tank made of a synthetic resin and has a connection part body formed into a cylindrical shape from a synthetic resin material having gas barrier properties and a welding part 22 formed of an air permeable synthetic resin material and welded to the connection part body and the outer surface of the fuel tank under heating. The connection part is equipped with first and second molds 32 and 33 for forming a first cavity 31 for use in molding the welding part 22, the third mold 37 clamped to the first mold 32 for forming a second cavity 36 in order to mold the connection part body in place of the second mold 33 and the annular projection 39 provided to the third mold 37 and bitten in the welding part 22 at the vicinal position of the second cavity 36 when the third mold 37 is clamped to the first mold 32. COPYRIGHT: (C)2005,JPO&NCIPI |
