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    GOLF BALL
    6.
    发明申请
    GOLF BALL 审中-公开
    高尔夫球

    公开(公告)号：US20150375053A1

    公开(公告)日：2015-12-31

    申请号：US14788311

    申请日：2015-06-30

    Applicant: DUNLOP SPORTS CO. LTD.

    Inventor： Kohei MIMURA ,  Takahiro SAJIMA

    IPC: A63B37/00

    CPC classification number: A63B37/0074 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0087 ,  A63B37/0089 ,  A63B37/009 ,  A63B37/0096

    Abstract: A golf ball 2 includes a center 8, a mid layer 10, a cover 6 and dimples 12. The cover 6 has a Shore D hardness of 30-50. The golf ball 2 has an amount of compressive deformation of 3.0-5.0 mm. The ball 2 meets a mathematical formula (I): 0.80≦((L1+L2)/2)≦0.95  (I). L1 represents a ratio of a lift coefficient CL1 relative to a drag coefficient CD1, the lift coefficient CL1 and the drag coefficient CD1 being measured under conditions of a Reynolds number of 1.290×105 and a spin rate of 2820 rpm. L2 represents a ratio of a lift coefficient CL2 relative to a drag coefficient CD2, the lift coefficient CL2 and the drag coefficient CD2 being measured under conditions of a Reynolds number of 1.771×105 and a spin rate of 2940 rpm.

    Abstract translation: 高尔夫球2包括中心8，中间层10，盖6和凹坑12.盖6的肖氏D硬度为30-50。 高尔夫球2的压缩变形量为3.0-5.0mm。 球2符合数学公式（I）：0.80＆nlE;（（L1 + L2）/ 2）＆nlE; 0.95（I）。 L1表示在雷诺数为1.290×105和旋转速度为2820rpm的条件下测量的升力系数CL1相对于阻力系数CD1，升力系数CL1和阻力系数CD1的比率。 L2表示在雷诺数为1.771×105和旋转速度为2940rpm的条件下测量的升力系数CL2相对于阻力系数CD2，升力系数CL2和阻力系数CD2的比率。

    GOLF BALL AND METHOD FOR PRODUCING THE SAME
    7.
    发明申请
    GOLF BALL AND METHOD FOR PRODUCING THE SAME 审中-公开
    高尔夫球及其制造方法

    公开(公告)号：US20150182806A1

    公开(公告)日：2015-07-02

    申请号：US14583326

    申请日：2014-12-26

    Applicant: DUNLOP SPORTS CO., LTD.

    Inventor： Takahiro SAJIMA ,  Kohei MIMURA

    IPC: A63B37/00 ,  B05D5/02 ,  A63B45/00

    CPC classification number: A63B37/0033 ,  A63B37/0004 ,  A63B37/0005 ,  A63B37/0022 ,  A63B37/0074 ,  A63B37/0075 ,  A63B37/0089 ,  A63B37/009 ,  A63B37/0096 ,  A63B45/00 ,  A63B45/02 ,  B05D5/02 ,  B05D2350/60

    Abstract: A golf ball that enhances flight performance is provided. A golf ball according to the present invention includes a spherical core, at least one cover member that covers the core, and a coating layer that covers the cover member configuring the outermost layer. A plurality of dimples are formed in the cover member configuring the outermost layer. Roughness is formed on a surface of the coating layer such that a relationship between a drag coefficient CD1 and a lift coefficient CL1 when a golf ball is hit with a Reynolds number of 1.771×105 and a spin amount of 2280 rpm satisfies CD1×CL1

    Abstract translation: 提供了一种提高飞行性能的高尔夫球。 根据本发明的高尔夫球包括球形芯，覆盖芯的至少一个盖构件和覆盖构成最外层的盖构件的涂层。 在构成最外层的盖构件中形成多个凹坑。 在涂层的表面上形成粗糙度，使得当雷诺数为1.771×105，旋转量为2280rpm的高尔夫球时，阻力系数CD1和升力系数CL1之间的关系满足CD1×CL1 < 0.0370。

    GOLF BALL ESTIMATE SIMULATION METHOD
    9.
    发明申请
    GOLF BALL ESTIMATE SIMULATION METHOD 有权
    高尔夫球估计模拟方法

    公开(公告)号：US20120065949A1

    公开(公告)日：2012-03-15

    申请号：US12881387

    申请日：2010-09-14

    Applicant: Katsunori Sato ,  Takuma Nakagawa

    Inventor： Katsunori Sato ,  Takuma Nakagawa

    IPC: G06F17/10

    CPC classification number: G06F17/5018 ,  A63B37/0004 ,  A63B37/0089 ,  A63B37/009 ,  A63B37/0096 ,  A63B47/008 ,  A63B2220/51 ,  G06F2217/16

    Abstract: When an air stream is made to flow into a virtual airflow space set up by computer and the velocity, direction and pressure of the air stream flowing around a rotating golf ball model are calculated for each cell of a grid, by setting an airflow stabilization time during which computation proceeds without rotation of the golf ball model until the air stream that flows into the virtual airflow space ceases to be influenced by the initial air stream and stabilizes, then rotating the golf ball model at a given spin rate once the airflow stabilization time has elapsed and calculating the velocity, direction and pressure of the air stream for each grid cell, the computational time can be greatly shortened without lowering accuracy, enabling coefficients of lift and coefficients of drag to be easily calculated from the velocity, direction and pressure of the air stream for each grid cell.

    Abstract translation: 当使气流流入由计算机设置的虚拟气流空间中时，通过设定气流稳定时间来计算围绕旋转高尔夫球模型流动的气流的速度，方向和压力 在此期间，不进行高尔夫球模型的旋转而进行计算，直到流入虚拟气流空间的空气流不再受到初始空气流的影响并稳定，然后一旦气流稳定时间以一定的旋转速度旋转高尔夫球模型 已经过去并计算了每个网格单元的气流的速度，方向和压力，可以大大缩短计算时间，而不会降低精度，从而可以从速度，方向和压力容易地计算电梯系数和阻力系数 每个电网的气流。

    Golf ball with improved flight performance
    10.
    发明授权
    Golf ball with improved flight performance 有权
    高尔夫球具有改善的飞行性能

    公开(公告)号：US08016695B2

    公开(公告)日：2011-09-13

    申请号：US12235067

    申请日：2008-09-22

    Applicant: Nicholas M. Nardacci ,  Laurent Bissonnette

    Inventor： Nicholas M. Nardacci ,  Laurent Bissonnette

    IPC: A63B37/06

    CPC classification number: A63B37/0039 ,  A63B37/0006 ,  A63B37/0016 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0047 ,  A63B37/0066 ,  A63B37/0075 ,  A63B37/0089 ,  A63B37/009 ,  A63B37/0091 ,  A63B37/0096 ,  A63B2037/085

    Abstract: A golf ball with aerodynamic coefficient magnitude and aerodynamic force angle, resulting in improved flight performance, such as increased carry and flight consistency regardless of ball orientation. In particular, the present invention is directed to a golf ball having increased flight distance as defined by a set of aerodynamic requirements, at particular spin ratios and Reynolds Numbers. The invention is also directed toward golf balls having high spin decay rates during the first second of flight that yields improved flight performance and longer ball flight.

    Abstract translation: 具有空气动力系数大小和空气动力角的高尔夫球，导致飞行性能的提高，例如增加的进位和飞行的一致性，而不管球的方位。 特别地，本发明涉及一种具有由一组空气动力学要求，特定旋转比和雷诺数定义的飞行距离增加的高尔夫球。 本发明还涉及在飞行的第一秒期间具有高自旋衰减速率的高尔夫球，其产生改进的飞行性能和更长的球飞行。

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