US 11,701,964 B2
Fuel tank
Kazunari Nakaya, Tochigi (JP); Takuya Shiraishi, Tochigi (JP); and Hiroya Mitsuhashi, Tochigi (JP)
Assigned to YACHIYO INDUSTRY CO., LTD., Saitama (JP)
Appl. No. 17/773,982
Filed by YACHIYO INDUSTRY CO., LTD., Saitama (JP)
PCT Filed Nov. 6, 2020, PCT No. PCT/JP2020/041608
§ 371(c)(1), (2) Date May 3, 2022,
PCT Pub. No. WO2021/090937, PCT Pub. Date May 14, 2021.
Claims priority of application No. 2019-203076 (JP), filed on Nov. 8, 2019.
Prior Publication US 2023/0001784 A1, Jan. 5, 2023
Int. Cl. B65D 6/34 (2006.01); B60K 15/03 (2006.01); B60K 15/035 (2006.01)
CPC B60K 15/03177 (2013.01) [B60K 15/035 (2013.01); B60K 2015/03032 (2013.01)] 2 Claims
OG exemplary drawing
 
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.