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公开(公告)号：US20180178086A1
公开(公告)日：2018-06-28
申请号：US15855445
申请日：2017-12-27
IPC分类号： A63B53/02
CPC分类号： A63B53/02 , A63B2053/023
摘要： A golf club includes a head 200, a shaft 300, and a tip engagement part RT having a reverse-tapered shape and being disposed at a tip end portion of the shaft 300. The tip engagement part RT includes a sleeve 400 having a reverse-tapered shape and being fixed to the tip end portion of the shaft 300, and a spacer 500 having a reverse-tapered shape and being externally fitted to the sleeve 400. The spacer 500 has a divided structure. The hosel part 202 includes a hosel hole 204. The hosel hole 204 includes a reverse-tapered hole 206 corresponding to the shape of the outer surface of the tip engagement part RT. The hosel hole 204 allows the sleeve 400 to pass through the hosel hole 204. The tip engagement part RT is fitted to the reverse-tapered hole 206, and the sleeve 400 is fitted inside the spacer 500.
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公开(公告)号：US20180178081A1
公开(公告)日：2018-06-28
申请号：US15854122
申请日：2017-12-26
发明人： Mami TANAKA , Toshiyuki TARAO
IPC分类号： A63B37/00
CPC分类号： A63B37/0074 , A63B37/0024 , A63B37/0031 , A63B37/0043 , A63B37/0062 , A63B37/0065 , A63B37/0067 , A63B37/0075 , A63B37/0083 , A63B37/0092 , C08L23/0876
摘要： An object of the present invention is to provide a golf ball exhibiting good shot feeling and excellent resilience. The present invention provides a golf ball comprising a spherical core and one or more cover layers disposed outside the spherical core, wherein at least one layer of the cover layers contains: (A) a base resin containing (a-1) an ionomer resin and having a material hardness of 59 or more in Shore D hardness; and (B) a polyrotaxane having a cyclodextrin with at least a part of hydroxyl groups of the cyclodextrin being modified with a caprolactone chain via —O—C3H6—O— group, a linear molecule piercing through a cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin.
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公开(公告)号：USD821511S1
公开(公告)日：2018-06-26
申请号：US29606990
申请日：2017-06-09
设计人： Keith F. Dolezel , Mika Becktor
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公开(公告)号：US20180169482A1
公开(公告)日：2018-06-21
申请号：US15814037
申请日：2017-11-15
发明人： Takahiro SAJIMA , Hironori TAKIHARA
IPC分类号： A63B37/00
CPC分类号： A63B37/0088 , A63B37/0031 , A63B37/0033 , A63B37/0065 , A63B37/0074 , A63B37/0087 , A63B2037/0079
摘要： A golf ball includes a core and a cover. A difference (FB2−FC2) between a secondary natural frequency FB2 of the golf ball and a secondary natural frequency FC2 of the core is not less than 80 Hz and not greater than 420 Hz. The golf ball having a sum (FB2+FC2) of not less than 4000 Hz is preferable. Preferably, the FC2 is not less than 1800 Hz and not greater than 2500 Hz. Preferably, the FB2 is not less than 2000 Hz and not greater than 2800 Hz. Preferably, an amount of compressive deformation Dc is 2.30 mm to 3.90 mm. Preferably, an amount of compressive deformation Db is 1.80 mm to 3.30 mm. Preferably, a thickness Tc is 0.80 mm to 2.10 mm. Preferably, a Shore D hardness Hc is not less than 52 and not greater than 65.
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公开(公告)号：USD820927S1
公开(公告)日：2018-06-19
申请号：US29606981
申请日：2017-06-09
设计人： Phillip C. Seagram , Mika Becktor
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公开(公告)号：US20180161629A1
公开(公告)日：2018-06-14
申请号：US15719006
申请日：2017-09-28
发明人： Kohei MIMURA , Takahiro SAJIMA
IPC分类号： A63B37/00
CPC分类号： A63B37/0004 , A63B37/0006 , A63B37/0012 , A63B37/0017 , A63B37/0018 , A63B37/0019 , A63B37/002 , A63B37/0033 , A63B37/0035 , A63B37/0045 , A63B37/0047 , A63B37/0064 , A63B37/008 , A63B45/00
摘要： A golf ball 2 has a large number of dimples 10 on a surface thereof. Fifteen axes are assumed for a phantom sphere of the golf ball 2. 30240 points on a predetermined region of the surface of the golf ball 2 during backspin about each axis are determined. A length L1 of a perpendicular line that extends from each point to the axis is calculated. A total length L2 is calculated by summing 21 lengths L1 calculated based on 21 perpendicular lines arranged in a direction of the axis. A transformed data constellation is obtained by performing Fourier transformation on a data constellation of 1440 total lengths L2 calculated along a direction of rotation about the axis. A peak value and an order of a maximum peak of the transformed data constellation are calculated. A minimum value of 15 peak values is not less than 95 mm.
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公开(公告)号：US09981164B2
公开(公告)日：2018-05-29
申请号：US15218746
申请日：2016-07-25
发明人： Akio Yamamoto
CPC分类号： A63B53/0466 , A63B2053/0408 , A63B2053/0412 , A63B2053/0437 , A63B2053/045 , B22D19/00 , B22D19/04 , B22D21/005 , B22D25/02 , C22C14/00
摘要： The present invention provides a golf club head that enables increasing the moment of inertia while also improving durability, and a manufacturing method for the same. The golf club head of the present invention includes a crown portion. The crown portion has a first region having a first thickness and multiple second regions having a second thickness that is smaller than the first thickness. The second regions are distributed in a radiating fashion so as to extend from an origin toward a peripheral portion of the crown portion excluding the face side, the origin being located within 15 mm of the center of gravity of the golf club head in the toe-heel direction and also being located in the vicinity of the face side in the face-back direction in a plan view.
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公开(公告)号：US09975005B2
公开(公告)日：2018-05-22
申请号：US15381966
申请日：2016-12-16
IPC分类号： A63B37/00 , C09D175/04 , C09D175/00
CPC分类号： A63B37/0022 , A63B37/0029 , A63B37/0031 , A63B37/0033 , A63B37/0043 , A63B37/0045 , A63B37/0062 , A63B37/0063 , A63B37/0075 , A63B37/0076 , A63B37/0092 , C09D175/00 , C09D175/04
摘要： An object of the present invention is to provide a golf ball travelling a great flight distance on driver shots, exhibiting an excellent spin performance on approach shots under a dry condition and a wet condition, and showing an excellent shot feeling and durability. The present invention provides a golf ball comprising a golf ball body having a spherical core, an intermediate layer and a cover, and a paint film composed of two or more layers, wherein a 10% elastic modulus difference (Min−Mout) between an innermost layer and an outermost layer of the paint film is 25 kgf/cm2 or more.
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公开(公告)号：US09956456B2
公开(公告)日：2018-05-01
申请号：US15138484
申请日：2016-04-26
发明人： Kazuya Kamino , Kosuke Tachibana
CPC分类号： A63B37/0092 , A63B37/0031 , A63B37/0033 , A63B37/0037 , A63B37/0039 , A63B37/004 , A63B37/0043 , A63B37/0044 , A63B37/0045 , A63B37/0049 , A63B37/006 , A63B37/0062 , A63B37/0063 , A63B37/0064 , A63B37/0076
摘要： Provided is a golf ball comprising a spherical core including an inner layer and an outer layer, an intermediate layer and a cover, wherein a difference (HX+1−HX−1) is 0 or more in Shore C hardness, a surface hardness (HX+Y) of the spherical core is more than 70 in Shore C hardness, an angle α of a hardness gradient of the inner layer is 0° or more, a difference (α−β) between the angle α and an angle β of a hardness gradient of the outer layer is 0° or more, the intermediate layer has a material hardness (Hm) ranging from 65 to 80 in Shore D hardness, and the intermediate layer has a highest hardness among the constituent members of the golf ball.
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