PROBLEM TO BE SOLVED: To provide a single mounting type vehicle wheel disk capable of achieving weight saving of a disk as compared with a conventional one, and to provide a manufacturing method thereof.SOLUTION: A vehicle wheel disk is manufactured from plate-shaped disk material. The vehicle wheel disk 10 and a manufacturing method thereof include a hub mounting portion 12, a disk flange portion 13, and a hat portion 14. The hat portion 14 includes a hat top portion 15 protruding outwardly in an axial direction of the disk, a hat inner circumference portion 16 connecting the hat top portion 15 and the hub mounting portion 12, and a hat outer circumference portion 17 connecting the hat top portion 15 and the disk flange portion 13. In the vehicle wheel disk, a first thickness-reduced portion 18a which has a thickness smaller than that of the disk material is formed at the hat outer circumference portion 17.SELECTED DRAWING: Figure 2

    【課題】従来に比べてディスクの軽量化を図ることができる、シングル取り付けタイプの自動車用ホイールディスクとその製造方法の提供。【解決手段】平板状のディスク素材から製造されており、ハブ取付け部12と、ディスクフランジ部13と、ハット部14と、を有し、ハット部14が、ディスク軸方向外側に突出するハット頂部15と、ハット頂部15とハブ取付け部12とをつなぐハット内周部16と、ハット頂部15とディスクフランジ部13とをつなぐハット外周部17と、を有する、自動車用ホイールディスク10とその製造方法であって、ハット外周部17に、ディスク素材の板厚より板厚が小の第1の板厚減少部18aが設けられている。【選択図】図2


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    Title :

    VEHICLE WHEEL DISK AND MANUFACTURING METHOD THEREOF


    Additional title:

    自動車用ホイールディスクとその製造方法


    Contributors:

    Publication date :

    2018-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / 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



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