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公开(公告)号：US5975869A
公开(公告)日：1999-11-02
申请号：US931835
申请日：1997-09-17
CPC分类号： B29C45/376 , B29L2031/54
摘要： A golf ball mold includes a pair of split mold sections which are removably mated to define a spherical cavity. The cavity surfaces are provided with a plurality of dimple-forming protrusions. Some of the dimple-forming protrusions are constructed by dimple-forming pins whose inner end has substantially the same shape as the protrusions. The dimple-forming pins are axially or radially movable so that the projection distance of the pins into the cavity is adjustable. With a single mold, golf balls having dimples of different shapes can be produced. Golf balls of quality including symmetry and flight performance can be manufactured at low cost.
摘要翻译： 高尔夫球模具包括一对分开的模具部分，它们可拆卸地配合以限定球形腔。 空腔表面设置有多个凹坑形成突起。 一些凹坑形成突起由凹陷形成销构成，其内端具有与突起基本相同的形状。 凹坑形成销轴向或可径向移动，使得销进入空腔的突出距离是可调节的。 使用单个模具，可以制造具有不同形状的凹坑的高尔夫球。 可以以低成本制造具有对称性和飞行性能的高品质球。
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公开(公告)号：US5961401A
公开(公告)日：1999-10-05
申请号：US964199
申请日：1997-11-04
CPC分类号： B29C70/603 , A63B37/0003 , A63B37/0043 , A63B37/0075
摘要： A golf ball is composed of at least a pair of adjacent concentric solid layers or three adjacent concentric solid layers. In the former case, the outer solid layer is composed of a matrix and non-metallic high-hardness grains having hardness higher than that of the matrix which has a Shore D range of 36-40. In the later case, the intermediate solid layer is composed of a matrix and high-hardness grains having hardness higher than that of the matrix. The high-hardness grains have a Shore D hardness in the range of 50-70 and penetrate the corresponding solid layer in normal directions. The golf ball can provide a player with different feels on impact depending on the direction of an external force applied thereto when the golf ball is hit.
摘要翻译： 高尔夫球由至少一对相邻的同心实心层或三个相邻的同心固体层组成。 在前一种情况下，外固体层由硬度高于肖氏D范围36-40的基体的基体和非金属高硬度晶粒构成。 在后一种情况下，中间固体层由具有高于基体硬度的基体和高硬度晶粒构成。 高硬度颗粒的肖氏D硬度在50-70的范围内，并且在正常方向上穿透相应的固体层。 当打高尔夫球时，高尔夫球可以根据施加到其上的外力的方向为玩家提供不同的冲击感。
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公开(公告)号：US5906551A
公开(公告)日：1999-05-25
申请号：US954085
申请日：1997-10-20
CPC分类号： A63B37/0004 , A63B37/0006 , A63B37/0012 , A63B37/0018 , A63B37/0019 , A63B37/002
摘要： In a golf ball having a parting line formed at the junction between a pair of mold sections and a plurality of dimples some of which lie across the parting line and being free of a great circle which does not intersect with the dimples, the crossing dimples lying across the parting line have a greater edge angle than those dimples of the same diameter as the crossing dimples disposed near the poles. The ball is improved in symmetry in that the flight distance is substantially equal between seam hitting and pole hitting.
摘要翻译： 在具有形成在一对模具部分和多个凹坑之间的连接处的分型线的高尔夫球中，其中一些凹坑位于分隔线上并且没有与凹坑不相交的大圆，所述交叉凹坑位于 横跨分型线具有比设置在极附近的交叉凹坑相同直径的凹坑更大的边缘角度。 球的对称性得到改善，因为飞行距离在接缝击球和杆击之间基本相等。
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公开(公告)号：US5902190A
公开(公告)日：1999-05-11
申请号：US840754
申请日：1997-04-16
CPC分类号： A63B37/12 , A63B37/0003 , A63B37/04 , A63B37/0022 , A63B37/0053 , A63B37/0076
摘要： A golf ball includes a coating layer which has a thickness of 50-700 .mu.m and is formed at the surface portion of the golf ball. When a three-piece golf ball, for example, is prepared, a solid core is enclosed with a cover material having a two-layer structure composed of inner and outer cover layers, and mark stamping is then performed on the cover material. Subsequently, a transparent coating layer having a thickness of 50-700 .mu.m and made of a thermoplastic resin is formed as an outermost layer. It is possible to impart a desired surface hardness and surface friction coefficient to the golf ball without taking account of the overall structure of the golf ball and the relationship between the hardness of the core and the hardness of the cover, thereby increasing the degree of freedom in designing of the golf ball, especially, in designing of the surface hardness and the surface friction coefficient. The coating layer is formed by dispersion coating using a water system emulsion prepared by dispersing a thermoplastic urethane resin powder in water.
摘要翻译： 高尔夫球包括厚度为50-700μm并形成在高尔夫球的表面部分的涂层。 例如，当制备三件式高尔夫球时，实心芯由具有由内盖层和外盖层构成的双层结构的覆盖材料包围，然后在覆盖材料上进行标记冲压。 随后，形成厚度为50-700μm，由热塑性树脂制成的透明涂层作为最外层。 可以在不考虑高尔夫球的整体结构以及芯的硬度与盖的硬度之间的关系的情况下赋予高尔夫球所需的表面硬度和表面摩擦系数，从而增加自由度 在设计高尔夫球时，特别是在设计表面硬度和表面摩擦系数时。 通过使用通过将热塑性聚氨酯树脂粉末分散在水中制备的水系乳液的分散涂布形成涂层。
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公开(公告)号：US5874038A
公开(公告)日：1999-02-23
申请号：US961016
申请日：1997-10-30
CPC分类号： B29C45/14819
摘要： An injection mold for golf balls includes a pair of separable mold segments (1a, 1b). The mold segments (1a, 1b) are mated at their peripheral surfaces (12) along a parting line so that their inner surfaces (2a) define a spherical cavity (2). A plurality of dimple-forming projections (11) are formed on the inner surfaces (2a). At least four tubular gates (7) are disposed in the peripheral surfaces (12) and in fluid communication with the cavity (2). The peripheral surfaces (12) are furrowed except for the areas where the gates are disposed. Dimple-forming pins (14) are received in furrows (13) so as to lie across the parting line (PL). A molten stock material is injected into the cavity (2) through the gates (7) to mold a golf ball having dimples lying across the parting line.
摘要翻译： 一种用于高尔夫球的注射模具包括一对可分离的模具段（1a，1b）。 模具段（1a，1b）沿着分隔线在它们的周边表面（12）处配合，使得其内表面（2a）限定球形腔（2）。 在内表面（2a）上形成多个凹坑形成突起（11）。 至少四个管状门（7）设置在周边表面（12）中并与空腔（2）流体连通。 除了设置门的区域外，外围表面（12）是沟槽的。 凹槽形成销（14）被接纳在沟（13）中，以跨越分型线（PL）。 通过浇口（7）将熔融原料注入空腔（2），以模制一个具有位于分型线上的凹坑的高尔夫球。
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