公开(公告)号：US10039966B2

公开(公告)日：2018-08-07

申请号：US15279920

申请日：2016-09-29

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Daisuke Kohno ,  Kazuhiro Hayashi

IPC: A63B53/04 ,  A63B60/54

Abstract: A head 2 includes a head body h1 and a face plate p1 fixed to the head body h1. The face plate p1 includes a plate front surface f1 having a hitting face, a plate back surface b1 which is a surface opposite to the plate front surface f1, and a plate side surface s1. The head body h1 includes an opening part to which the face plate is disposed, and a receiving surface u1 which supports the face plate p1 from back. The plate back surface b1 includes an outer peripheral edge part 16 having a circular shape. The outer peripheral edge part 16 includes a first portion x1 which abuts on the receiving surface u1, and a second portion which does not abut on the receiving surface u1 and forms a gap gp between the second portion and the receiving surface u1.

公开(公告)号：US09457242B2

公开(公告)日：2016-10-04

申请号：US14446659

申请日：2014-07-30

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Kazuhiro Hayashi

IPC: A63B53/04 ,  A63B53/00

CPC classification number: A63B53/0466 ,  A63B53/04 ,  A63B2053/005 ,  A63B2053/0408 ,  A63B2053/0412 ,  A63B2053/0462 ,  A63B2209/00

Abstract: A golf club includes a hollow head 6, a shaft 8, and a grip 10. The head 6 includes a face f6. The face f6 includes a thick portion T1. The thick portion T1 includes a thick portion center point Ec. A face height at the position of the thick portion center point Ec is defined as H1, and the height of the thick portion center point Ec is defined as H2. H2/H1 is equal to or greater than 0.55. The face f6 preferably further includes secondary thick portions T2 and T3 thinner than the thick portion T1, and thin portions T4 and T5 thinner than the secondary thick portions T2 and T3. The thick portion T1 and the secondary thick portions T2 and T3 preferably form a sloped thick portion Ts extending from the upper side of a heel to the lower side of a toe.

Abstract translation: 高尔夫球杆包括中空头部6，轴8和手柄10.头部6包括面部f6。 面f6包括厚部T1。 厚部T1包括厚部中心点Ec。 将厚部中心点Ec的位置处的面高度定义为H1，将厚部中心点Ec的高度定义为H2。 H2 / H1等于或大于0.55。 面f6优选还包括比厚部T1薄的次级厚部T2和T3，以及比第二厚部T2和T3更薄的薄部T4和T5。 厚部T1和次厚部T2以及T3优选形成从脚跟的上侧延伸到脚趾的下侧的倾斜的厚部Ts。

公开(公告)号：US09387372B2

公开(公告)日：2016-07-12

申请号：US14495599

申请日：2014-09-24

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Kazuhiro Hayashi

IPC: A63B53/04 ,  A63B53/00 ,  A63B53/02

CPC classification number: A63B53/04 ,  A63B53/02 ,  A63B53/0466 ,  A63B60/00 ,  A63B2053/005 ,  A63B2053/0408 ,  A63B2053/0412 ,  A63B2053/042 ,  A63B2053/0437 ,  A63B2053/0454 ,  A63B2053/0458

Abstract: A golf club set 2 includes a plurality of golf clubs 41 to 45 having different club lengths. Each of the golf clubs 41 to 45 includes a head 6, a shaft 8, and a grip 10. The club length of each of the clubs 41 to 45 is 38.5 inches or greater and 42 inches or less. Face progression of the head 6 is substantially constant. If a moment of inertia of the head about an axis line of the shaft is defined as MI, an MI difference ratio between the adjacent clubs is equal to or less than 3%. Preferably, a loft angle is equal to or greater than 17 degrees in each of all the clubs 41 to 45.

Abstract translation: 高尔夫球杆组2包括具有不同球杆长度的多个高尔夫球杆41至45。 每个高尔夫球杆41至45包括头部6，轴8和手柄10.每个球杆41至45的球棒长度为38.5英寸或更大且42英寸或更小。 头部6的面部进展基本上是恒定的。 如果将头围绕轴的轴线的惯性力矩定义为MI，则相邻球杆之间的MI差值比例等于或小于3％。 优选地，在所有俱乐部41至45中的每一个中，顶角等于或大于17度。

公开(公告)号：US09724574B2

公开(公告)日：2017-08-08

申请号：US14649110

申请日：2013-10-18

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Kazuhiro Hayashi

IPC: A63B53/04

CPC classification number: A63B53/0466 ,  A63B53/04 ,  A63B60/00 ,  A63B2053/0433

Abstract: A sole surface f8 of a head 2 includes a first sole region R1. An outer edge of the region R1 includes a first edge line Eg1, a second edge line Eg2, a third edge line Eg3, and a fourth edge line Eg4. The line Eg1 is inclined so as to come closer to a face surface toward a toe side. The line Eg2 is inclined so as to come closer to the face surface toward a heel side. The line Eg3 is inclined so as to come closer to the face surface toward the heel side. The line Eg4 is inclined so as to come closer to the face surface toward the toe side. The lines Eg1 to Eg4 are joined to form a single line.

公开(公告)号：US10293219B2

公开(公告)日：2019-05-21

申请号：US15855190

申请日：2017-12-27

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Kazuhiro Hayashi

IPC: A63B53/04 ,  B21K17/00

Abstract: A golf club head according to the present invention is provided with a face portion, a crown portion and a sole portion, the crown portion including a first area extending in a toe-heel direction along at least part of the face portion and a second area arranged further to a back side than the first area, a sloped surface that extends in the toe-heel direction and slopes downward approaching the back side being formed between the first area and the second area, and a transfer sheet that is formed in a shape corresponding to the sloped surface and is a different color from the first area and the second area being stuck to the sloped surface.