To provide a fuel tank and a fuel tank manufacturing method which prevent occurrence of voids in a joint part and can increase a joint strength.SOLUTION: A resin-made fuel tank in which a tank lower 2 and a tank upper 3 formed by injection molding are joined to each other in a circumferential direction has a joint part 12 that is formed so as to be wider in a plate thickness direction than a side wall 11 and extends outward, a flange part 13 extending outward from the joint part 12, and a recess 14 formed between an outer surface 11b of the side wall 11 and the flange part 13, on each ends of side wall 11 of the tank lower 2 and the tank upper 3, in which the opposite joint parts 12 are joined to each other, and a cross-sectional area of a part S corresponding to the recess 14 in the joint part 12 is smaller than a cross-sectional area of the flange part 13.SELECTED DRAWING: Figure 2

    【課題】接合部にボイドが発生するのを防ぐとともに、接合強度を高めることができる燃料タンク及び燃料タンクの製造方法を提供する。【解決手段】射出成形で形成されたタンクロア2とタンクアッパー3とが周方向に接合された樹脂製の燃料タンクであって、タンクロア2及びタンクアッパー3の側壁11の端部同士において、側壁11よりも板厚方向に幅広に形成されるとともに外方に張り出す接合部12と、接合部12からさらに外方に張り出すフランジ部13と、側壁11の外面11bとフランジ部13との間に形成される凹部14と、をそれぞれ有し、対向する接合部12同士が接合されているとともに、接合部12のうち凹部14に対応する部位Sの断面積が、フランジ部13の断面積よりも小さいことを特徴とする。【選択図】図2


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    Title :

    FUEL TANK AND FUEL TANK MANUFACTURING METHOD


    Additional title:

    燃料タンク及び燃料タンクの製造方法


    Contributors:

    Publication date :

    2022-03-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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