PROBLEM TO BE SOLVED: To provide a manufacturing method of fuel tank which can reduce an amount of resin required for formation of an attachment unit to attach a fittings to the fuel tank.SOLUTION: A manufacturing method of a fuel tank includes: a first step of making a hollow molten resin projection 34 formed to a molten resin sheet 32 which is a tank constitutive member comprising a tank body and projects into a wall thickness direction penetrate to a mounting hole 30 of a fitting 27 arranged on the molten resin sheet 32; and a second step of making at least one part of the molten resin projection 34 extend to a perimeter part 28A of the mounting hole 30 of the fitting 27 by pressurizing the molten resin projection 34 from inside.SELECTED DRAWING: Figure 7
【課題】燃料タンクに取付部品を取り付けるための取付部の形成に必要な樹脂量を低減できる燃料タンクの製造方法を提供する。【解決手段】燃料タンクの製造方法は、タンク本体を構成するタンク構成部材となる溶融樹脂シート32に形成され、肉厚方向に突出する中空状の溶融樹脂突起34を溶融樹脂シート32上に配置された取付部品27の取付孔30に貫通させる第1工程と、溶融樹脂突起34を内側から加圧して少なくとも一部を取付部品27の取付孔30の周辺部28Aまで張り出させる第2工程と、を備えている。【選択図】図7
MANUFACTURING METHOD OF FUEL TANK AND FUEL TANK
燃料タンクの製造方法及び燃料タンク
2016-02-04
Patent
Electronic Resource
Japanese