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    Iron golf club heads and golf club sets with variable weight distribution
    3.
    发明授权
    Iron golf club heads and golf club sets with variable weight distribution 有权
    铁质高尔夫球杆头和高尔夫球杆组，重量分布不均匀

    公开(公告)号：US08021246B2

    公开(公告)日：2011-09-20

    申请号：US12492784

    申请日：2009-06-26

    申请人： David Llewellyn ,  Tetsuya Kanayama ,  Isamu Toshinari ,  Kazuhiro Doi ,  Tomoaki Aoki

    发明人： David Llewellyn ,  Tetsuya Kanayama ,  Isamu Toshinari ,  Kazuhiro Doi ,  Tomoaki Aoki

    IPC分类号： A63B53/04

    CPC分类号： A63B53/047 ,  A63B2053/005 ,  A63B2053/0408 ,  A63B2053/0458

    摘要： Described herein are iron golf club heads and sets of iron golf clubs that have variable weight distribution. Each iron golf club head has a cavity and a y-shaped cavity pad disposed on at least a portion of a back wall of the cavity. The y-shaped cavity pad provide reduced vibrations within the cavity when the iron golf club head strikes a golf ball. The y-shaped cavity pad also provides an enlarged sweet spot to provide increased forgiveness for off-center hits. Other aspects, features, and embodiments are also claimed and described.

    摘要翻译： 这里描述的是具有可变重量分布的铁质高尔夫球杆头和铁质高尔夫球杆组。 每个铁高尔夫球杆头具有设置在空腔的后壁的至少一部分上的空腔和y形空腔垫。 当铁高尔夫球杆头撞击高尔夫球时，y形腔垫在腔内提供减少的振动。 y形空腔垫还提供了一个扩大的甜点，为偏心命中提供了更多的宽恕。 还要求和描述其它方面，特征和实施例。

    Iron golf club heads and golf club sets with variable weight distribution
    8.
    发明授权
    Iron golf club heads and golf club sets with variable weight distribution 有权
    铁质高尔夫球杆头和高尔夫球杆组，重量分布不均匀

    公开(公告)号：US07972222B2

    公开(公告)日：2011-07-05

    申请号：US12492701

    申请日：2009-06-26

    申请人： David Llewellyn ,  Tetsuya Kanayama ,  Kazuhiro Doi

    发明人： David Llewellyn ,  Tetsuya Kanayama ,  Kazuhiro Doi

    IPC分类号： A63B53/04

    CPC分类号： A63B53/0475 ,  A63B53/047 ,  A63B60/52 ,  A63B60/54 ,  A63B2053/0433

    摘要： Described herein are iron golf club heads and sets of iron golf clubs that have variable weight distribution. Each iron golf club head has a cavity and a groove with a raised portion disposed therein. The groove and the raised portion can deepen the center of mass depth and lengthen the effective face length of the iron golf club. The width of the groove may vary between each golf club in a set of iron golf clubs, such that the width of the groove of the long irons is greater that the width of the groove of the middle irons, and the width of the groove of the middle irons is greater than the width of the optional groove of the short irons. Other aspects, embodiments, and features are also claimed and discussed.

    摘要翻译： 这里描述的是具有可变重量分布的铁质高尔夫球杆头和铁质高尔夫球杆组。 每个铁质高尔夫球杆头具有一个空腔和一个设置在其中的凸起部分的槽。 凹槽和凸起部分可以加深质心深度并延长铁高尔夫球杆的有效面长度。 槽的宽度可以在一组铁高尔夫球杆中的每个高尔夫球杆之间变化，使得长铁杆的槽的宽度大于中间铁的槽的宽度，并且槽的宽度 中间铁杆大于短铁杆可选槽的宽度。 还要求和讨论其它方面，实施例和特征。

    IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRIBUTION
    10.
    发明申请
    IRON GOLF CLUB HEADS AND GOLF CLUB SETS WITH VARIABLE WEIGHT DISTRIBUTION 有权
    高尔夫俱乐部高尔夫俱乐部和高尔夫俱乐部设置可变重量分配

    公开(公告)号：US20100167834A1

    公开(公告)日：2010-07-01

    申请号：US12492701

    申请日：2009-06-26

    申请人： David Llewellyn ,  Tetsuya Kanayama ,  Kazuhiro Doi

    发明人： David Llewellyn ,  Tetsuya Kanayama ,  Kazuhiro Doi

    IPC分类号： A63B53/04 ,  A63B53/02

    CPC分类号： A63B53/0475 ,  A63B53/047 ,  A63B60/52 ,  A63B60/54 ,  A63B2053/0433

    摘要： Described herein are iron golf club heads and sets of iron golf clubs that have variable weight distribution. Each iron golf club head has a cavity and a groove with a raised portion disposed therein. The groove and the raised portion can deepen the center of mass depth and lengthen the effective face length of the iron golf club. The width of the groove may vary between each golf club in a set of iron golf clubs, such that the width of the groove of the long irons is greater that the width of the groove of the middle irons, and the width of the groove of the middle irons is greater than the width of the optional groove of the short irons. Other aspects, embodiments, and features are also claimed and discussed.

    摘要翻译： 这里描述的是具有可变重量分布的铁质高尔夫球杆头和铁质高尔夫球杆组。 每个铁质高尔夫球杆头具有一个空腔和一个设置在其中的凸起部分的槽。 凹槽和凸起部分可以加深质心深度并延长铁高尔夫球杆的有效面长度。 槽的宽度可以在一组铁高尔夫球杆中的每个高尔夫球杆之间变化，使得长铁杆的槽的宽度大于中间铁的槽的宽度，并且槽的宽度 中间铁杆大于短铁杆可选槽的宽度。 还要求和讨论其它方面，实施例和特征。