PROBLEM TO BE SOLVED: To provide a method for manufacturing a filler tube having a flange that enhances joint strength of a weld surface.SOLUTION: In a flange 31c, a first end surface 31c1 to be welded to a fuel tank 10, an outer circumferential surface 31c2 and a second end surface 31c3 are formed of a material for an outermost layer 55 of a cylindrical material. A moving speed of split molds 123 and 124 when the cylindrical material is brought into close contact with a portion where a cylindrical body 31b is molded in the split molds 123 and 124, is set at a first speed to allow the cylindrical body 31b to have a desired thickness in the radial direction. While a moving speed of the split molds 123 and 124 is set at a second speed slower than the first speed, when the cylindrical material is brought into close contact with a portion where the flange 31c is molded in the split molds 123 and 124, to allow the thickness of the flange 31c in the radial direction to be thicker than the thickness of the cylindrical body 31b in the radial direction, an area Q in the radial direction to be welded to the fuel tank 10 is filled with the material for forming the flange 31c in the flange 31c.SELECTED DRAWING: Figure 3

    【課題】溶着面の接合強度を高くすることができるフランジを有するフィラーチューブの製造方法を提供する。【解決手段】フランジ31cにおいて、燃料タンク10に溶着される第一端面31c1と、外周面31c2と、第二端面31c3とは、筒状素材の最外層55の材料により形成される。分割金型123,124における筒状本体31bを成形する部位に筒状素材を密着させる際の分割金型123,124の移動速度を第一速度とすることにより、筒状本体31bを所定の径方向厚みとしている。分割金型123,124におけるフランジ31cを成形する部位に筒状素材を密着させる際の分割金型123,124の移動速度を第一速度より遅い第二速度とすることにより、フランジ31cの径方向厚みを筒状本体31bの径方向厚みより厚くしつつ、フランジ31cにおいて、燃料タンク10に溶着される径方向範囲Qが、フランジ31cを形成する材料により充填されている。【選択図】図3


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    Title :

    METHOD FOR MANUFACTURING FILLER TUBE, AND FILLER TUBE


    Additional title:

    フィラーチューブの製造方法およびフィラーチューブ


    Contributors:

    Publication date :

    2018-08-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16L PIPES , Rohre



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