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21. 发明专利

JPH09299510A MULTIPIECES SOLID GOLF BALL 失效
公开(公告)号：JPH09299510A
公开(公告)日：1997-11-25
申请号：JP14373596
申请日：1996-05-14
申请人： BRIDGESTONE SPORTS CO LTD
发明人： HAYASHI JUNJI , YAMAGISHI HISASHI , HIGUCHI HIROSHI
IPC分类号： A63B37/00 , B29D99/00 , C08L9/00 , C08L21/00
摘要： PROBLEM TO BE SOLVED: To obtain a multipieces solid golf ball which has a soft and good fitting feel and has less dependence on a head speed even when a ball is shot with any club from a driver to a putter. SOLUTION: This golf ball includes an inside core ball 1, multiple solid cores 3 consisting of at least >= layers of enclosing layers 2 covering this inside core ball 1 and a cover 6 consisting of an inside layer 4 covering these cores and an outside layer 5 covering this inside layer 4. The inside core ball 1 is formed to the hardness of 3.5 to 10mm in the deformation rate at the time of loading with 100kg load. In addition, the enclosure layers 2 are formed to the highest hardness of >=60 in Shore D hardness. The inside layer hardness of the cover 6 is

22. 发明专利

JPH09271534A THREAD WOUND GOLF BALL 失效
公开(公告)号：JPH09271534A
公开(公告)日：1997-10-21
申请号：JP10631496
申请日：1996-04-03
申请人： BRIDGESTONE SPORTS CO LTD
发明人： HAYASHI JUNJI , YAMAGISHI HISASHI
IPC分类号： A63B37/00 , A63B37/08
摘要： PROBLEM TO BE SOLVED: To provide a golf ball excellent in the spin performance, controllability and carry, while giving a soft driving feeling in driving the ball and the driving feeling excellent in a satisfactory click feeling. SOLUTION: In a thread wound golf ball having a center ball 1 wound around by a rubber thread and a cover covering the rubber thread, the center ball 1 having 33-38mm of the outer diameter consists of a center core 4 having 37mm or less of the outer diameter and 1-5mm of deformation amount under 100kg of a fixed load and the surrounding layer 5 covering the center core with 54 or less of Shore D hardness.

23. 发明专利

JPH09239067A TWO-PIECES SOLID GOLF BALL 失效
公开(公告)号：JPH09239067A
公开(公告)日：1997-09-16
申请号：JP7113596
申请日：1996-03-01
申请人： BRIDGESTONE SPORTS CO LTD
发明人： YAMAGISHI HISASHI , SHINDO JUN
IPC分类号： A63B37/00
摘要： PROBLEM TO BE SOLVED: To provide a golf ball which is good in a carry and controllability and excellent in hitting feel by consisting the golf ball of a core formed to such a hardness distribution in which the hardness of the core surface has a prescribed value or below, the hardness at the center of the core is softer than the surface and the hardness within the prescribed size from the surface is softer than the surface and a cover having the hardness softer than the surface hardness, a thickness of a prescribed size and a prescribed number of dimples. SOLUTION: This two-pieces solid golf ball is obtd. by coating the solid core with the cover and forming the many dimples 1 on the cover surface. The core has such hardness distribution that the hardness of the core Surface, measured by a JIS-C type hardness meter, is =8 to

24. 发明专利

JPH09140831A GOLF BALL MATERIAL 失效
公开(公告)号：JPH09140831A
公开(公告)日：1997-06-03
申请号：JP26796696
申请日：1996-09-18
申请人： BRIDGESTONE SPORTS CO LTD
发明人： EGASHIRA YOSHINORI , ICHIKAWA YASUSHI , KASHIWAGI SHUNICHI , YAMAGISHI HISASHI
IPC分类号： A63B37/00 , A63B37/04 , A63B37/06 , A63B37/08 , A63B37/12 , B29D99/00 , B29K23/00 , C08F210/16 , B29D31/00
摘要： PROBLEM TO BE SOLVED: To enhance impact resistance, resiliency and machinability by using a copolymer that is obtained by copolymerization of an ethylene with an α-olefin with a specific number of carbons and that has a specific value for its specific gravity and has a specific value obtained by division of its weight average molecular weight by its number average molecular weight. SOLUTION: An ethylene is copolymerized with an α-olefin having 4 or more carbons to obtain a copolymer as a golf ball material, which has a specific gravity of 0.86 to 0.92 and a value of 2.5 or less that is obtained by dividing its weight average molecular weight by its number average molecular weight. The copolymer serving as golf ball material is usable as a main polymer forming the core of a one-piece solid golf ball and those of solid golf balls of two pieces or more, intermediate layers covering the cores of solid golf balls of three pieces or more, covers for solid golf balls of two pieces or more, the solid center of a thread golf ball, the liquid center bag of a thread golf ball of the liquid center type, etc.

25. 发明专利

JPH08238337A GOLF BALL 失效
公开(公告)号：JPH08238337A
公开(公告)日：1996-09-17
申请号：JP7234895
申请日：1995-03-06
申请人： BRIDGESTONE SPORTS CO LTD
发明人： YAMAGISHI HISASHI , SHINDO JUN , NAKAMURA ATSUSHI
IPC分类号： A63B37/00 , A63B37/04 , A63B37/12
摘要： PURPOSE: To improve a carry and to enable a golfer to obtain good feeling with a golf ball having many dimples on the front surface of a cover for covering a core by specifying the sp. gr. of the ball to a specific value, forming the cover of an ionomer resin as an essential material and specifying the Shore D hardness of the material to a specific value. CONSTITUTION: The many dimples are formed on the front surface of the cover for covering the solid core. The sp. gr. of the ball is 1.05±0.05. The cover is formed of the ionomer resin as the essential material and is formed to the Shore D hardness of >=60 deg.. The thickness of the cover is specified to 1.4 to 2.4mm. The deflection quantity when the core is loaded with 100kg load is specified to 2.4 to 4.3mm. Further, a spherical surface 3 of a diameter smaller by 0.16mm than the ball diameter of the virtual spherical surface 2 is set. The volume VP of the dimple space 9 under a plane 8 enclosed by the edges 7 which are the stretch of the intersected points 6 of the tangent 5 and the virtual spherical surface 2 at the intersected point 4 of the circumference of the spherical surface 3 and the dimple 1 is determined. The value VO of the dimple space volume VP with respect to the volume VQ of the cylinder 10 is specified to >=0.470.

26. 发明专利

JPH08238335A GOLF BALL 失效
公开(公告)号：JPH08238335A
公开(公告)日：1996-09-17
申请号：JP7234995
申请日：1995-03-06
申请人： BRIDGESTONE SPORTS CO LTD
发明人： YAMAGISHI HISASHI , HIGUCHI HIROSHI , SHINDO JUN
IPC分类号： A63B37/00
摘要： PURPOSE: To enable a golfer to obtain a sufficient carry in the case of a shot with a driver, etc., by specifying the weight and outside diameter of a golf ball, the occupying rate of dimples on a ball surface and the value obtd. by dividing the dimple space volume under the plane enclosed by the edges of the respective dimples by specific cylindrical volume to specific values. CONSTITUTION: A virtual spherical surface 2 of a ball diameter is set on the dimple 1 and a spherical surface 3 of a diameter smaller by 0.16mm than the ball diameter is set. The stretch of the intersected points 6 of the tangent 5 and the virtual spherical surface 2 at the intersected point 4 of the circumference of the spherical surface 3 and the dimple 1 is determined as the edge 7 of the dimple. The volume VP of the dimple space 9 under the plane 8 enclosed by the edge 7 is determined. The volume VQ of the cylinder 10 having the plane 8 as its base and the max. depth Dp of the dimple from the plane 8 as its height is determined. The ratio VO of the space volume VP of the dimple to the cylinder volume VQ is specified to 0.35 to 0.60. The weight of the golf ball is specified to 40 to 45g, the outside diameter to 43 to 47mm and the occupying rate of the dimples on the ball surface is specified to >=60%.

27. 发明专利

JPH08164226A GOLF BALL 失效
公开(公告)号：JPH08164226A
公开(公告)日：1996-06-25
申请号：JP33302494
申请日：1994-12-14
申请人： BRIDGESTONE SPORTS CO LTD
发明人： YAMAGISHI HISASHI , EGASHIRA YOSHINORI , WATANABE HIDEO
IPC分类号： A63B37/00 , A63B37/06 , A63B37/12
摘要： PURPOSE: To provide a golf ball which is excellent in feeling ability and in a spin characteristic without deteriorating the carry thereof by setting the hardness of a core to a value higher than a specific value as to a degree of deformation at the time of applying a predetermined load, and the ratio between core hardness and ball hardness and the thickness of a cover to predetermined values, respectively. CONSTITUTION: The hardness of a core is such that a degree of deformation is greater than 2.2mm under a load of 100kg, the value obtained by dividing the core hardness with the hardness of a ball is in a range between 1.0 to 1.3 while the thickness of a cover is in a range between 1.3 to 1.8mm. In this case, if the degree of deformation is less than 2.2mm, the feeling ability deteriorates, but if it is larger, the repulsiveness deteriorates so that the carry is shortened, that is, soft feeling is sensed. If the ratio between core hardness and ball hardness is less than 1.0, the feeling deteriorates, but it is larger than 1.3, the stopping ability on the green tends to deteriorate. Further, if the thickness of the cover is less than 1.3mm, the top damaging ability deteriorates, resulting in possible breakage. But if it is greater than 1.8mm, the repulsiveness deteriorates, the carry is shortened, and the feeling ability lowers.

28. 发明专利

JP2012228470A Practice golf ball 有权
标题翻译：实践高尔夫球
公开(公告)号：JP2012228470A
公开(公告)日：2012-11-22
申请号：JP2011099969
申请日：2011-04-27
申请人： Bridgestone Sports Co Ltd , ブリヂストンスポーツ株式会社
发明人： HIGUCHI HIROSHI , YAMAGISHI HISASHI , ARAI DAISUKE , OZAWA YUICHIRO , OHIRA TAKASHI , SATO KATSUNORI
IPC分类号： A63B69/36 , A63B37/00 , A63B37/04 , A63B37/12
CPC分类号： A63B69/3655 , A63B37/0003 , A63B37/0012 , A63B37/0017 , A63B37/0021 , A63B37/0031 , A63B37/0033 , A63B37/0035 , A63B37/0051 , A63B37/0063 , A63B37/0064 , A63B37/0065 , A63B37/0066 , A63B37/0068 , A63B37/0074 , A63B37/0084 , A63B37/0087 , C08K5/09 , C08L9/00 , C08L9/06
摘要： PROBLEM TO BE SOLVED: To provide a practice golf ball which is endowed with the properties required of practice balls intended for long-term use, including better durability to cracking and durability of appearance than ordinary game balls and the ability to maintain a stable feel on impact and a stable carry performance over a long period of time, and which, moreover, by further limiting the carry of the ball, has a controlled carry for use at very small practice fields.SOLUTION: The practice golf ball has a core and a cover. The core is made of a rubber composition which includes a base rubber, a co-crosslinking agent, a crosslinking initiator and a metal oxide. The base rubber is a mixture of polybutadiene with styrene-butadiene rubber and/or isoprene rubber, and the co-crosslinking agent is methacrylic acid. The core has a specific deflection CH under a specific load, and the ball has a specific initial velocity. The dimples on the surface of the ball have a volume ratio (VR) of from 0.95 to 1.7. The practice golf ball is endowed with the properties required of practice balls intended for long-term use, includes better durability to cracking and durability of appearance than ordinary game balls and the ability to maintain a stable feel on impact and a stable carry performance over a long period of time, and moreover, by further limiting the carry of the ball, has a controlled carry for use at very small practice fields.
摘要翻译：要解决的问题：提供一种练习高尔夫球，其具有旨在长期使用的练习球所需的性能，包括比普通游戏球更好的耐破裂性和外观耐久性，以及维持一个长时间稳定的冲击感和稳定的携带性能，而且通过进一步限制球的进位，在非常小的实践领域具有可控制的使用。
解决方案：练习高尔夫球有一个核心和一个盖子。芯由橡胶组合物制成，其包括基础橡胶，共交联剂，交联引发剂和金属氧化物。基础橡胶是聚丁二烯与苯乙烯 - 丁二烯橡胶和/或异戊二烯橡胶的混合物，共交联剂是甲基丙烯酸。核心在特定负载下具有特定的偏转CH，并且球具有特定的初始速度。球表面上的凹坑的体积比（VR）为0.95至1.7。练习高尔夫球具有用于长期使用的练习球所需的性能，包括比普通游戏球更好的耐破裂性和耐久性，以及保持稳定的冲击感和稳定的携带性能此外，通过进一步限制球的进位，具有在非常小的练习领域使用的受控进位。版权所有（C）2013，JPO＆INPIT

29. 发明专利

JP2012228461A Practice golf ball 审中-公开
标题翻译：实践高尔夫球
公开(公告)号：JP2012228461A
公开(公告)日：2012-11-22
申请号：JP2011099905
申请日：2011-04-27
申请人： Bridgestone Sports Co Ltd , ブリヂストンスポーツ株式会社
发明人： HIGUCHI HIROSHI , YAMAGISHI HISASHI , ARAI DAISUKE , OZAWA YUICHIRO , SATO KATSUNORI , OHIRA TAKASHI
IPC分类号： A63B69/36 , A63B37/00 , A63B37/04 , A63B37/12
摘要： PROBLEM TO BE SOLVED: To provide a practice golf ball endowed with the properties required of practice balls intended for long-term use, including better durability to cracking than ordinary game balls, and also better durability to ball surface loss and durability of appearance than the one-piece golf balls which are commonly used as practice balls.SOLUTION: The practice golf ball has a core, a cover, and a transparent paint layer, the core is made of a rubber composition which includes a base rubber, a co-crosslinking agent, a crosslinking initiator and a metal oxide, the co-crosslinking agent being methacrylic acid, a resin material forming the cover has a breaking strength of 20 to 80 Mpa and an elongation of 150 to 600%, and the initial velocity (BV) of the ball is not more than 76 m/s. The practice golf ball for long-term use includes a much better durability to cracking than ordinarily used game balls, better durability to ball surface loss and durability of appearance than those of the one-piece golf balls which are commonly used as practice balls.
摘要翻译：要解决的问题：为了提供具有要长期使用的练习球所需的性能的实践高尔夫球，包括比普通游戏球更好的耐破裂性，以及更好的球表面损失和耐久性的耐久性外观比通常用作练习球的单件高尔夫球。解决方案：练习高尔夫球具有芯，盖和透明漆层，芯由橡胶组合物制成，该橡胶组合物包括基础橡胶，共交联剂，交联引发剂和金属氧化物，作为甲基丙烯酸的共交联剂，形成盖的树脂材料的断裂强度为20〜80Mpa，伸长率为150〜600％，球的初速度（BV）为76m / 秒。用于长期使用的练习高尔夫球包括比通常使用的游戏球更好的耐久性，比通常用作练习球的单件高尔夫球具有更好的球表面损失耐久性和外观耐久性。版权所有（C）2013，JPO＆INPIT

30. 发明专利

JP2012228452A Practice golf ball 审中-公开
标题翻译：实践高尔夫球
公开(公告)号：JP2012228452A
公开(公告)日：2012-11-22
申请号：JP2011099853
申请日：2011-04-27
申请人： Bridgestone Sports Co Ltd , ブリヂストンスポーツ株式会社
发明人： HIGUCHI HIROSHI , YAMAGISHI HISASHI , ARAI DAISUKE , OZAWA YUICHIRO , OHIRA TAKASHI , SATO KATSUNORI
IPC分类号： A63B69/36 , A63B37/00 , A63B37/04
CPC分类号： A63B37/0003 , A63B37/0006 , A63B37/0017 , A63B37/0019 , A63B37/0021 , A63B37/0023 , A63B37/0031 , A63B37/0033 , A63B37/0035 , A63B37/0051 , A63B37/0054 , A63B37/0063 , A63B37/0064 , A63B37/0065 , A63B37/0066 , A63B37/0074 , A63B37/008 , A63B37/0083 , A63B37/0084 , A63B37/0087 , A63B69/3655
摘要： PROBLEM TO BE SOLVED: To provide a practice golf ball endowed with the properties required of practice balls intended for long-term use, including better durability to cracking and durability of appearance than ordinary game balls, and also better durability to ball surface loss than the one-piece golf balls which are commonly used as practice balls.SOLUTION: The practice golf ball has a core and a cover, the core is made of a rubber composition which includes a base rubber, a co-crosslinking agent, a crosslinking initiator and a metal oxide, the co-crosslinking agent being methacrylic acid, a resin material of the cover has a breaking strength of 20 to 80 Mpa and an elongation of 150 to 600%. The ball is endowed with the properties required of practice balls intended for long-term use, including better durability to cracking and durability of appearance than ordinary game balls, and also better durability to ball surface loss than the one-piece golf balls which are commonly used as practice balls.
摘要翻译：要解决的问题：为了提供具有为长期使用所需的练习球所需的性能的实践高尔夫球，包括比普通游戏球更好的耐破裂性和外观耐久性，以及对球表面的更好的耐久性损失比通常用作练习球的单件高尔夫球。解决方案：练习高尔夫球具有芯和盖，芯由橡胶组合物制成，其包括基础橡胶，共交联剂，交联引发剂和金属氧化物，共交联剂为甲基丙烯酸，覆盖层的树脂材料的断裂强度为20〜80Mpa，伸长率为150〜600％。球具有旨在长期使用的练习球所需的性能，包括比普通游戏球更好的耐破裂性和外观耐久性，以及比通常的单件高尔夫球更好的球表面损伤耐久性用作练习球。版权所有（C）2013，JPO＆INPIT

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