PROBLEM TO BE SOLVED: To provide a manufacturing method of a fuel oil feed pipe for an automobile which has a large strength of a pouring part of the fuel oil feed pipe for an automobile and can be easily manufactured, and to provide the fuel oil feed pipe for the automobile.SOLUTION: A process for forming an inlet part 12 of a fuel oil feed pipe 10 for an automobile includes a process of expanding a diameter of a tip part of a metallic pipe and a process of folding and entering the tip part of the pipe of which the diameter is expanded by a prescribed length with a folding jig formed in a curved shape with a curved inner surface and forming a fuel oil feed pipe inlet part inside wall 15 for an automobile on the inside of the pipe. Further, a process of adhering the fuel oil feed pipe inlet part inside wall 15 for the automobile onto the fuel oil feed pipe inlet part outside wall 16 for the automobile on the tip part of the pipe of which the diameter is expanded and a process of forming a screw part 13 on an overlapped part of the fuel oil feed pipe inlet part inside wall 15 for the automobile and the fuel oil feed pipe inlet part outside wall 16 for the automobile are provided.SELECTED DRAWING: Figure 1
【課題】自動車用燃料給油管の注入口の強度が大きく、製造も容易な自動車用燃料給油管の製造方法と自動車用燃料給油管を提供する。【解決手段】自動車用燃料給油管10の入口部12を形成する工程は、金属製のパイプの先端部分を拡径する工程と、拡径されたパイプの先端部分を、内面が湾曲した曲面状に形成された折り曲げ治具で、パイプの内側に所定の長さを折り曲げて入れてパイプの内側に自動車用燃料給油管入口部内側壁15を形成する工程を有する。さらに、パイプの拡径された先端部分で、自動車用燃料給油管入口部外側壁16に、自動車用燃料給油管入口部内側壁15を密着させる工程と、密着した自動車用燃料給油管入口部内側壁15と自動車用燃料給油管入口部外側壁16の重なる部分に、ねじ部13を形成する工程を有する。【選択図】図1
MANUFACTURING METHOD OF FUEL OIL FEED PIPE FOR AUTOMOBILE AND FUEL OIL FEED PIPE FOR AUTOMOBILE
自動車用燃料給油管の製造方法と自動車用燃料給油管
2016-05-19
Patent
Electronic Resource
Japanese
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 / B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |
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