| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a small component fixing part for a synthetic resin-made fuel tank capable of restraining the deterioration of accuracy of the small components fitting part and the reduction of strength against external forces, caused by the deterioration with the lapse of time, without inducing the deterioration of manufacturing property and the excessive increase in weight. SOLUTION: An engaging part mounted integrally on the opening of the blow-molded synthetic resin fuel tank (1) is installed as the structure for fixing a small component through the medium of a seal member between the engaging part and a fastening member paired with the engaging part in the cylindrical part (12) formed by burying the wall of the tank (1) inwardly. The fastening member is provided with an annular part (14) fitted into the inner periphery surface of the cylindrical part (12). Consequently, only the thickness of a part supporting the small component, where the seal member is installed, can be increased without increasing the thickness of the tank (1) because the part contacts the inner surface of a metallic mold early.
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