CPC B60K 15/03177 (2013.01) [B60K 15/035 (2013.01); B60K 2015/03032 (2013.01)] | 2 Claims |
1. A fuel tank made of plastic resin and comprising a built-in component having a head portion, a neck portion, and a shoulder portion, the built-in component being anchored to a tank body by blowing air from outside a parison to cause the parison to wrap around the neck portion during molding of the tank body, wherein
a slit extending in one direction only is formed on a surface of the shoulder portion as an air vent path, the slit has a cross-sectional shape such that a width thereof becomes narrower in a depth direction, and the plastic resin enters the slit and a cavity is formed on a distal side of the slit in the depth direction; and
wherein the slit has a triangular cross-sectional shape, and an angle between a first wall portion and a second wall portion that constitute the slit is an acute angle.
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