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    Adjustable golf club
    2.
    发明授权
    Adjustable golf club 有权
    可调高尔夫球杆

    公开(公告)号：US09308430B2

    公开(公告)日：2016-04-12

    申请号：US13665237

    申请日：2012-10-31

    Applicant: DUNLOP SPORTS CO., LTD.

    Inventor： Dan S. Nivanh

    IPC: A63B53/02 ,  A63B71/06 ,  A63B53/00 ,  A63B53/04

    CPC classification number: A63B53/00 ,  A63B53/02 ,  A63B53/0466 ,  A63B60/00 ,  A63B71/06 ,  A63B2053/023 ,  A63B2053/027

    Abstract: In an embodiment, a golf club includes a striking face, a top portion, a sole portion opposite the top portion, and a shaft assembly. The shaft assembly can include a shaft having a butt end and a tip end, and a shaft sleeve located at the tip end, the shaft sleeve including indicia, and a hosel extending from the top portion. The hosel can include a sidewall, an internal bore for receiving the shaft assembly, and an aperture extending through, and circumscribed by, the sidewall such that the indicia of the shaft sleeve corresponds with the aperture.

    Abstract translation: 在一个实施例中，高尔夫球杆包括击打面，顶部，与顶部相对的鞋底部分和轴组件。 轴组件可以包括具有对接端和尖端的轴，以及位于尖端的轴套，轴套包括标记，以及从顶部延伸的插鞘。 插鞘可以包括侧壁，用于接收轴组件的内孔，以及延伸穿过侧壁并由侧壁限定的孔，使得轴套的标记对应于孔。

    Golf club head and method of manufacturing the same
    3.
    发明授权
    Golf club head and method of manufacturing the same 有权

    公开(公告)号：US10406409B2

    公开(公告)日：2019-09-10

    申请号：US15431004

    申请日：2017-02-13

    Applicant: DUNLOP SPORTS CO. LTD.

    Inventor： Patrick Ripp ,  Dan S. Nivanh ,  Mika Becktor ,  Jesse D. Sukman

    IPC: A63B53/04

    Abstract: A method comprising, in a striking face of a golf club head, the striking face being formed of a first material having a first hardness, creating a plurality of initial grooves, the initial grooves having a first cross-sectional area (A1) and a first pitch (P1) such that A1/P1>0.0030 in. The method continues with modifying the initial grooves at least by positioning a second material in each of the plurality of initial grooves, the second material having a second hardness that is less than the first hardness, such that the first material and the second material form a plurality of final grooves each having a second cross-sectional area (A2) and a second pitch (P2) such that A2/P2

    Adjustable golf club
    4.
    发明授权
    Adjustable golf club 有权

    公开(公告)号：US10549160B2

    公开(公告)日：2020-02-04

    申请号：US15061040

    申请日：2016-03-04

    Applicant: DUNLOP SPORTS CO. LTD.

    Inventor： Dan S. Nivanh

    IPC: A63B53/00 ,  A63B60/00 ,  A63B53/04 ,  A63B71/06 ,  A63B53/02

    Abstract: A golf club includes a striking face, a top portion, a sole portion opposite the top portion, and a shaft assembly. The shaft assembly can include a shaft having a butt end and a tip end, and a shaft sleeve located at the tip end, the shaft sleeve including indicia. The golf club may further include a hosel extending from the top portion, and the hosel can include a sidewall, a tip end, an internal bore for receiving the shaft assembly, a hosel axis, and an aperture extending through, and circumscribed by, the sidewall such that the indicia of the shaft sleeve corresponds with the aperture. The sidewall circumscribing the aperture may include an inner surface having a first thickness T1 in a radial direction relative the hosel axis and a chamfered edge having a second thickness T2 in the radial direction, T1/T2 being between approximately 3 and 7.33.

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