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公开(公告)号：US09776055B2
公开(公告)日：2017-10-03
申请号：US14848999
申请日：2015-09-09
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Naoyoshi Ueda , Masahiko Ueda , Yasushi Sugimoto , Takashi Nakamura , Seiji Hayase , Wataru Kimizuka
Abstract: A golf club 2 includes a head 4, a shaft 6, and a grip 8. A club inertia moment about a swing axis is defined as Isw. A club inertia moment about a grip end is defined as Ige. Ige is 2870 (kg·cm2) or greater and less than 2920 (kg·cm2). Isw/Ige is equal to or less than 2.46. A club weight is defined as Wc (kg), an axial direction distance from the grip end to a center of gravity of the club is defined as Lc (cm), and a club inertia moment about the center of gravity of the club is defined as Ic (kg·cm2). Isw is calculated by Equation (1) below. Ige is calculated by Equation (2) below. Isw=Wc×(Lc+60)2+Ic (1) Ige=Wc×(Lc)2+Ic (2)
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公开(公告)号：US09220955B2
公开(公告)日：2015-12-29
申请号：US13905240
申请日：2013-05-30
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Seiji Hayase , Masahide Onuki
CPC classification number: A63B60/00 , A63B53/0466 , A63B53/047 , A63B2053/0437 , A63B2209/00 , A63B2209/023 , B29C65/16 , B29C65/1616 , B29C65/1635 , B29C65/1654 , B29C65/44 , B29C66/00141 , B29C66/1142 , B29C66/1162 , B29C66/1222 , B29C66/1224 , B29C66/12463 , B29C66/12862 , B29C66/14 , B29C66/242 , B29C66/244 , B29C66/30321 , B29C66/30325 , B29C66/53461 , B29C66/542 , B29C66/71 , B29C66/721 , B29C66/7212 , B29C66/7392 , B29C66/742 , B29C66/7428 , B29C66/74283 , B29C66/919 , B29C66/939 , B29L2031/5227 , B32B37/06 , Y10T156/10 , B29K2077/00 , B29K2069/00 , B29K2067/003 , B29K2307/04 , B29K2309/08
Abstract: A golf club head comprises a metal member made of at least one kind of metal material and a resin member made of a resin material welded to the metal member. A method for manufacturing the golf club head comprises a step of welding the resin member to the metal member.
Abstract translation: 高尔夫球棒头包括由至少一种金属材料制成的金属构件和由与金属构件焊接的树脂材料制成的树脂构件。 制造高尔夫球杆头的方法包括将树脂构件焊接到金属构件的步骤。
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Patent Agency Ranking
公开(公告)号：US09795841B2
公开(公告)日：2017-10-24
申请号：US14849148
申请日：2015-09-09
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Naoyoshi Ueda , Masahiko Ueda , Yasushi Sugimoto , Takashi Nakamura , Seiji Hayase , Wataru Kimizuka
Abstract: A golf club 2 includes a head 4, a shaft 6, and a grip 8. A club inertia moment about a swing axis is defined as Isw. A club inertia moment about a grip end is defined as Ige. Ige is 2920 (kg·cm2) or greater and less than 2970 (kg·cm2). Isw/Ige is equal to or less than 2.48. A club weight is defined as Wc (kg), an axial direction distance from the grip end to a center of gravity of the club is defined as Lc (cm), and a club inertia moment about the center of gravity of the club is defined as Ic (kg·cm2). Isw is calculated by Equation (1) below. Ige is calculated by Equation (2) below. Isw=Wc×(Lc+60)2+Ic (1) Ige=Wc×(Lc)2+Ic (2)
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公开(公告)号：US20160184656A1
公开(公告)日：2016-06-30
申请号：US14979079
申请日：2015-12-22
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Takahiro Shigemitsu , Hidetaka Inoue , Seiji Hayase
IPC: A63B37/00
CPC classification number: A63B37/0092 , A63B37/0031 , A63B37/0035 , A63B37/0043 , A63B37/0047 , A63B37/0062 , A63B37/0066 , A63B37/0069 , A63B37/0076
Abstract: An object of the present invention is to provide a golf ball showing a small ratio of a spin rate on driver shots to a spin rate on approach shots. The present invention provides a multi-piece golf ball comprising a spherical center, three or more envelope layers covering the spherical center, and a cover covering the envelope layers, wherein adjacent two envelope layers are formed so as to include a region composed of elements having a hitting deformation ratio of 30% or more, the hitting deformation ratio being obtained by analyzing a specified golf ball model by a finite element method; and the envelope layer which is radially outwardly positioned of the adjacent two envelope layers has a lowest hardness among all the envelope layers.
Abstract translation: 本发明的目的是提供一种高尔夫球，其显示驾驶员镜头上的旋转速率与接近镜头上的旋转速率的小比率。 本发明提供一种多片高尔夫球，其包括球面中心，三个或更多个覆盖球面中心的包络层，以及覆盖包封层的盖，其中相邻的两个包络层形成为包括由具有 打击变形率为30％以上，通过有限元法分析规定的高尔夫球模型获得的打击变形率; 并且相邻的两个包层的径向向外定位的包层具有在所有包层中的最低硬度。
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公开(公告)号：US09174098B2
公开(公告)日：2015-11-03
申请号：US13644997
申请日：2012-10-04
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Seiji Hayase , Masahide Onuki , Akio Yamamoto
CPC classification number: A63B60/00 , A63B53/0466 , A63B2053/0408 , A63B2053/0433 , A63B2053/0437 , A63B2060/002 , A63B2071/0633 , A63B2209/023 , A63B2225/01
Abstract: A golf club head 2 is provided with a head body h1 and a CFRP member 16. The CFRP member 16 constitutes at least a part of a crown 6 or at least a part of a sole 8. The CFRP member 16 has a UD lamination part 18 having laminated UD layers. Orientation of a fiber is substantially set to three directions in the UD lamination part 18. When the three directions are a first direction, a second direction, and a third direction, preferably, an angle of the second direction to the first direction is substantially +60 degrees, and an angle of the third direction to the first direction is substantially −60 degrees. Preferably, the UD lamination part 18 has a lamination symmetrical property in a fiber orientation angle. Preferably, the number of layers of the UD lamination part 18 is 5 or greater and 12 or less.
Abstract translation: 高尔夫球杆头2设置有头主体h1和CFRP构件16.CFRP构件16构成冠部6或鞋底8的至少一部分的至少一部分.CFRP构件16具有UD层压部分 18层叠了UD层。 在UD层叠部18中，纤维的取向基本上设定为三个方向。当三个方向为第一方向，第二方向和第三方向时，优选地，第二方向与第一方向的角度基本上为+ 60度，第三方向与第一方向的角度基本上为-60度。 优选地，UD层压部18在纤维取向角度具有层叠对称性。 优选地，UD层压部18的层数为5以上且12以下。
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公开(公告)号：US10427009B2
公开(公告)日：2019-10-01
申请号：US14979079
申请日：2015-12-22
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Takahiro Shigemitsu , Hidetaka Inoue , Seiji Hayase
Abstract: An object of the present invention is to provide a golf ball showing a small ratio of a spin rate on driver shots to a spin rate on approach shots. The present invention provides a multi-piece golf ball comprising a spherical center, three or more envelope layers covering the spherical center, and a cover covering the envelope layers, wherein adjacent two envelope layers are formed so as to include a region composed of elements having a hitting deformation ratio of 30% or more, the hitting deformation ratio being obtained by analyzing a specified golf ball model by a finite element method; and the envelope layer which is radially outwardly positioned of the adjacent two envelope layers has a lowest hardness among all the envelope layers.
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公开(公告)号：US09586107B2
公开(公告)日：2017-03-07
申请号：US14848857
申请日：2015-09-09
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Naoyoshi Ueda , Masahiko Ueda , Yasushi Sugimoto , Takashi Nakamura , Seiji Hayase , Wataru Kimizuka
CPC classification number: A63B53/14 , A63B53/00 , A63B53/10 , A63B2209/023
Abstract: A golf club 2 includes a head 4, a shaft 6, and a grip 8. A club inertia moment about a swing axis is defined as Isw. A club inertia moment about a grip end is defined as Ige. Ige is 2820 (kg·cm2) or greater and less than 2870 (kg·cm2). Isw/Ige is equal to or less than 2.42. A club weight is defined as Wc (kg), an axial direction distance from the grip end to a center of gravity of the club is defined as Lc (cm), and a club inertia moment about the center of gravity of the club is defined as Ic (kg·cm2). Isw is calculated by Equation (1) below. Ige is calculated by Equation (2) below. Isw=Wc×(Lc+60)2+Ic (1) Ige=Wc×(Lc)2+Ic (2)
Abstract translation: 高尔夫球杆2包括头部4，轴6和把手8.围绕摆动轴线的球杆惯性矩被定义为Isw。 关于握柄端的球杆惯性力矩定义为Ige。 Ige为2820（kg·cm2）以上且小于2870（kg·cm2）。 Isw / Ige等于或小于2.42。 球杆重量被定义为Wc（kg），从球杆的抓握端到重心的轴向距离定义为Lc（cm），并且围绕球杆的重心定义球杆惯性力矩 作为Ic（kg·cm 2）。 Isw由下面的等式（1）计算。 Ige由下式（2）计算。 Isw = Wc×（Lc + 60）2 + Ic（1）Ige = Wc×（Lc）2 + Ic（2）
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