公开(公告)号：US20170173408A1

公开(公告)日：2017-06-22

申请号：US15452386

申请日：2017-03-07

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takashi NAKAMURA

IPC: A63B53/00 ,  A63B53/14 ,  A63B53/10 ,  A63B53/04

Abstract: A club 2 includes a head 4, a shaft 6 and a grip 8. A club length L1 is 45 inches or greater and 48 inches or less. A ratio (Wh/Wc) of a head weight Wh to a club weight Wc is equal to or greater than 0.71. A moment of inertia Ix about an axis of a swing is equal to or less than 6.90×103 (kg·cm2). However, when the club weight is defined as Wc (kg); an axial-directional distance between a grip end and a center of gravity of the club is defined as Lc (cm); and a moment of inertia about the center of gravity of the club is defined as Ic (kg·cm2), the moment of inertia Ix (kg·cm2) is calculated by the following formula (1). Ix=Wc×(Lc+60)2+Ic  (1)

公开(公告)号：US20160067566A1

公开(公告)日：2016-03-10

申请号：US14849130

申请日：2015-09-09

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Naoyoshi UEDA ,  Masahiko UEDA ,  Yasushi SUGIMOTO ,  Takashi NAKAMURA ,  Seiji HAYASE ,  Wataru KIMIZUKA

IPC: A63B53/04 ,  A63B53/14

CPC classification number: A63B53/0466 ,  A63B53/00 ,  A63B53/14 ,  A63B60/02 ,  A63B60/42

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 2760(kg·cm2) or greater and less than 2820(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2760（kg·cm2）以上且小于2820（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）

公开(公告)号：US20150360092A1

公开(公告)日：2015-12-17

申请号：US14736688

申请日：2015-06-11

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takashi NAKAMURA

IPC: A63B53/04 ,  A63B53/14 ,  A63B53/10

Abstract: A club 2 includes a head 4, a shaft 6, and a grip 8. A club length L1 is 43 inches or greater and 48 inches or less. A ratio (Wh/Wc) of a head weight Wh to a club weight Wc is equal to or greater than 0.66. An inertia moment Ix about a swing axis is 7.20×103 (kg·cm2) or greater and 7.50×103 (kg·cm2) or less. A static moment Mt (kg·cm) of the club is equal to or greater than 16.0 (kg·cm). The inertia moment Ix (kg·cm2) is calculated by the following formula (1). Lc is an axial-directional distance between a grip end and a center of gravity of the club. Ix=Wc×(Lc+60)2+Ic  (1)

Abstract translation: 球杆2包括头部4，轴6和手柄8.球杆长度L1为43英寸或更大且48英寸或更小。 头部重量Wh与俱乐部重量Wc的比（Wh / Wc）等于或大于0.66。 绕摆动轴的惯性矩Ix为7.20×10 3（kg·cm 2）以上，7.50×10 3（kg·cm 2）以下。 球杆的静态力矩（kg·cm）等于或大于16.0（kg·cm）。 惯性矩Ix（kg·cm2）由下式（1）计算。 Lc是握杆端和球杆的重心之间的轴向距离。 Ix = Wc×（Lc + 60）2 + Ic（1）

公开(公告)号：US20150087436A1

公开(公告)日：2015-03-26

申请号：US14492834

申请日：2014-09-22

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takashi NAKAMURA

IPC: A63B53/00

CPC classification number: A63B60/00 ,  A63B53/00 ,  A63B53/10 ,  A63B60/42 ,  A63B2209/023

Abstract: A club length L1 of a golf club 2 is equal to or greater than 43 inches and equal to or less than 48 inches. A ratio Iss/Ix is equal to or greater than 0.070 and equal to or less than 0.100. A club inertia moment Ix about a swing axis is equal to or less than 6.90×103 (kg·cm2). The inertia moment Ix (kg·cm2) is calculated by the following formula (1). The shaft inertia moment Iss (kg·cm2) is calculated by the following formula (2). Ix=Wc×(Lc+60)2+Ic  (1) Iss=Ws×(Ls+60)2+Is  (2)

Abstract translation: 高尔夫球杆2的球杆长度L1等于或大于43英寸，等于或小于48英寸。 比率Iss / Ix等于或大于0.070且等于或小于0.100。 围绕摆动轴的球杆惯性力矩Ix等于或小于6.90×10 3（kg·cm 2）。 惯性矩Ix（kg·cm2）由下式（1）计算。 轴惯性矩Iss（kg·cm2）由下式（2）计算。 Ix = Wc×（Lc + 60）2 + Ic（1）Iss = Ws×（Ls + 60）2 + Is（2）

公开(公告)号：US20130288816A1

公开(公告)日：2013-10-31

申请号：US13860737

申请日：2013-04-11

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takashi NAKAMURA

IPC: A63B53/02

CPC classification number: A63B53/02 ,  A63B2053/023

Abstract: A golf club 2 includes a head 4, a shaft 6, and a fixing member Fx1. The head 4 has a hosel part 4h capable of swingably supporting the shaft 6. The shaft 6 has a tip connecting part 6t capable of being connected to the fixing member Fx1. The fixing member Fx1 has a connector 12 capable of being connected to the shaft 6, a first sliding member S1 capable of engaging the connector 12 with a plurality of positions in a first direction D1, and a second sliding member S2 capable of engaging the first sliding member S1 with a plurality of positions in a second direction D2. A movement of the connector 12 in the first direction D1 and a movement of the connector 12 in the second direction D2 are independent of each other.

Abstract translation: 高尔夫球杆2包括头部4，轴6和固定构件Fx1。 头部4具有能够可摆动地支撑轴6的插鞘部分4h。轴6具有能够连接到固定构件Fx1的末端连接部6t。 固定构件Fx1具有能够连接到轴6的连接器12，能够使连接器12沿第一方向D1与多个位置接合的第一滑动构件S1和能够接合第一方向的第二滑动构件S2 滑动构件S1具有沿第二方向D2的多个位置。 连接器12沿第一方向D1的移动和连接器12沿第二方向D2的移动是彼此独立的。

公开(公告)号：US20170173410A1

公开(公告)日：2017-06-22

申请号：US15385267

申请日：2016-12-20

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takashi NAKAMURA ,  Takahiro NORIMURA ,  Naruhiro MIZUTANI ,  Daisuke KOHNO

IPC: A63B53/04

CPC classification number: A63B53/047 ,  A63B53/04 ,  A63B2053/0408 ,  A63B2053/0416 ,  A63B2053/0445

Abstract: A head 2 includes a head body h1 and a face plate p1. The face plate p1 includes a plate front surface f1 having a hitting face 4, and a plate back surface b1. The plate front surface f1 has, on a peripheral edge part thereof, a step surface t1 positioned at a rear with respect to the hitting face 4. The head body h1 has a receipt surface u1 positioned at a rear of the plate back surface b1, a front disposition part z1 positioned at a front of the step surface t1, and a hosel 6. The front disposition part z1 includes a plastically deformed part d1 and a non-plastically deformed part n1. A clearance between the non-plastically deformed part n1 and the receipt surface u1 forms an engaging part E1 engaging a peripheral edge part of the face plate p1.

公开(公告)号：US20170113103A1

公开(公告)日：2017-04-27

申请号：US15299890

申请日：2016-10-21

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takashi NAKAMURA ,  Daisuke KOHNO

IPC: A63B53/04

CPC classification number: A63B53/047 ,  A63B2053/0408 ,  A63B2053/0416 ,  A63B2053/0433 ,  A63B2053/0458 ,  A63B2053/0491

Abstract: A head includes a head body and a face plate fixed to the head body. The face plate includes a plate front surface, a plate back surface, and a plate side surface. The plate back surface includes a center of figure. The head body includes a receiving surface which supports the plate back surface from rear. An outer peripheral edge part of the plate back surface includes a projection part which abuts on the receiving surface. If a toe-side region, a top-side region, and a sole-side region of the projection part are defined as a first section, and a heel-side region of the projection part is defined as a second section, then a width of the projection part is varied in the first section.

公开(公告)号：US20160059092A1

公开(公告)日：2016-03-03

申请号：US14937664

申请日：2015-11-10

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takashi NAKAMURA

IPC: A63B53/04 ,  A63B53/14

CPC classification number: A63B53/0466 ,  A63B53/00 ,  A63B53/10 ,  A63B53/14 ,  A63B60/42 ,  A63B2209/023

Abstract: The club length of a golf club is 43 inches or greater and 48 inches or less. A club inertia moment Ix about a swing axis is equal to or less than 6.90×103 (kg·cm2). A ratio (Ihs/Ix) is equal to or greater than 0.88, if a head inertia moment about the swing axis is defined as Ihs (kg·cm2). The inertia moment Ix (kg·cm2) is calculated by Equation (1) below, and the inertia moment Ihs (kg·cm2) is calculated by Equation (2) below: Ix=Wc×(Lc+60)2+Ic  (1) Ihs=Wh×(Lh+60)2+Ih  (2).

公开(公告)号：US20170312590A1

公开(公告)日：2017-11-02

申请号：US15498668

申请日：2017-04-27

Applicant: Dunlop Sports Co. Ltd.

Inventor： Takashi NAKAMURA ,  Daisuke KOHNO

IPC: A63B53/04

CPC classification number: A63B53/047 ,  A63B60/50 ,  A63B2053/0416 ,  A63B2053/0433 ,  A63B2053/0491

Abstract: A golf club head comprises a head main body, a weight member and a fixing member. The head main body is provided with a concave portion concaved from an outer surface of a finished shape of the golf club head. A specific gravity of the weight member is larger than a specific gravity of the head main body and larger than a specific gravity of the fixing member. The weight member is at least partially disposed in the concave portion. The fixing member is fixed to the concave portion so as to cover at least a part of the weight member from outside of the golf club head. The fixing member is provided with a through hole having an opening located in the above-said outer surface, and a part of the weight member is disposed in the through hole.

公开(公告)号：US20160074718A1

公开(公告)日：2016-03-17

申请号：US14950988

申请日：2015-11-24

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takashi NAKAMURA

IPC: A63B53/04 ,  A63B53/14

CPC classification number: A63B53/0466 ,  A63B53/00 ,  A63B53/10 ,  A63B53/14 ,  A63B60/00 ,  A63B60/42 ,  A63B2209/023

Abstract: A club includes a head, a shaft, and a grip. A club length L1 is 43 inches or greater and 48 inches or less. A ratio (Wh/Wc) between a head weight Wh and a club weight Wc is equal to or greater than 0.70. An inertia moment Ix about swing axis is 6.90×103 (kg·cm2) or greater and 7.50×103 (kg·cm2) or less. A static moment Mt (kg·cm) of the club is equal to or greater than 16.3 (kg·cm). The frequency of vibration of club is 240 (cpm) or greater and 280 (cpm) or less. The inertia moment Ix (kg·cm2) is calculated by Equation (1): Ix=Wc×(Lc+60)2+Ic  (1).

Abstract translation: 俱乐部包括一个头部，一个轴和一个手柄。 球杆长度L1为43英寸或更大且48英寸或更小。 头部重量Wh和球杆重量Wc之间的比（Wh / Wc）等于或大于0.70。 关于摆动轴的惯性矩Ix为6.90×10 3（kg·cm 2）以上且7.50×10 3（kg·cm 2）以下。 球杆的静态力矩（kg·cm）等于或大于16.3（kg·cm）。 俱乐部的振动次数为240（cpm）以上，280（cpm）以下。 通过等式（1）计算惯性力矩Ix（kg·cm2）：Ix = Wc×（Lc + 60）2 + Ic（1）。