公开(公告)号：US5048838A

公开(公告)日：1991-09-17

申请号：US493644

申请日：1990-03-15

申请人： Toshio Chikaraishi ,  Hidetoshi Ieiri ,  Kazuhiko Sugai ,  Kazuto Maehara

发明人： Toshio Chikaraishi ,  Hidetoshi Ieiri ,  Kazuhiko Sugai ,  Kazuto Maehara

IPC分类号： A63B37/00

CPC分类号： A63B37/0003 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0051 ,  A63B37/0062 ,  A63B37/0064 ,  A63B37/0066 ,  A63B37/0067 ,  A63B37/0075 ,  A63B37/0084 ,  A63B37/0091 ,  A63B37/008 ,  A63B37/0083

摘要： The inner layer of the core has a diameter of 15-25 mm, a weight of 2-14 grams, a specific gravity of 1.2-4, and a hardness of 55-80 JIS C. The outer layer has a specific gravity lower than that of the inner layer by 0.1-3.0. The cover has a radial thickness of 1.5-2.5 mm.A three-piece solid golf ball comprising a two-piece solid core consisting of inner and outer layers and a cover enclosing the core is improved in durability and flying performance through a proper choice of physical parameters of the core inner and outer layers and the cover.

摘要翻译： 芯的内层的直径为15-25mm，重量为2-14克，比重为1.2-4，硬度为55-80 JIS C。外层的比重低于 内层为0.1-3.0。 盖的径向厚度为1.5-2.5毫米。 包括由内层和外层组成的两件式实心芯和包围芯的盖的三件式实心高尔夫球通过适当选择芯内外层和外盖的物理参数来提高耐久性和飞行性能 。

公开(公告)号：US20120165143A1

公开(公告)日：2012-06-28

申请号：US13335190

申请日：2011-12-22

申请人： Akira Kanda ,  Toyotake Matsuoka ,  Hidetoshi Ieiri

发明人： Akira Kanda ,  Toyotake Matsuoka ,  Hidetoshi Ieiri

IPC分类号： A63B39/06 ,  D04H1/08

CPC分类号： A63B39/06 ,  A63B2102/02 ,  Y10T442/50

摘要： To provide a tennis ball felt which has less occurrence of creases at the time of forming a tennis ball. According to one embodiment, a tennis bass felt, which is covered on a core of a tennis ball, includes: a base fabric formed of stretchy material; and fibers fixed with the base fabric.

摘要翻译： 提供一种在形成网球时具有较少的折痕发生的网球毛毡。 根据一个实施例，网球低音毡被覆在网球的芯上，包括：由弹性材料形成的基底织物; 和纤维与基底织物固定。