GOLF CLUB SHAFT
    4.
    发明公开
    GOLF CLUB SHAFT 审中-公开

    公开(公告)号:US20240335712A1

    公开(公告)日:2024-10-10

    申请号:US18606418

    申请日:2024-03-15

    Abstract: A golf club shaft includes a plurality of fiber reinforced resin layers, a tip end, and a butt end. The golf club shaft also includes a plurality of extending portions each having an axial directional length of greater than 25 mm, and a plurality of transition portions each having an axial directional length of less than or equal to 25 mm and each having an outer diameter changing by 0.3 mm or more. Each of the transition portions connects two of the extending portions. The extending portions include at least one intermediate portion connecting two of the transition portions. The number of the transition portions is greater than or equal to 2, and may be greater than or equal to 3. The extending portions may include a tip extending portion and a butt extending portion.

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