公开(公告)号：US20130288820A1

公开(公告)日：2013-10-31

申请号：US13872533

申请日：2013-04-29

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Yuki SHIMAHARA

IPC: A63B53/04

CPC classification number: A63B60/00 ,  A63B53/04 ,  A63B53/0466 ,  A63B53/047 ,  A63B53/0487 ,  A63B2053/0408 ,  A63B2053/0445 ,  A63B2225/60

Abstract: A head 2 has a face 4. The face 4 has a plurality of score line grooves 8 and a plurality of fine grooves 10. A depth of fine groove 10 is less than 0.03 mm. A width of the fine groove 10 is 0.1 mm or greater and 0.3 mm or less. A pitch of the fine groove 10 is 0.3 mm or greater and 0.8 mm or less. The fine groove 10 has a first direction extending part d1 extending in a first direction and a second direction extending part d2 extending in a second direction. The first direction is a direction directed to a top blade side toward a heel side. The second direction is a direction directed to the top blade side toward a toe side. The score line groove 8 and the fine groove 10 do not cross each other.

Abstract translation: 头部2具有面4.面部4具有多个刻痕线槽8和多个细槽10.细槽10的深度小于0.03mm。 细槽10的宽度为0.1mm以上且0.3mm以下。 细槽10的间距为0.3mm以上且0.8mm以下。 细槽10具有沿第一方向延伸的第一方向延伸部d1和沿第二方向延伸的第二方向延伸部d2。 第一方向是指向顶叶侧朝向跟部侧的方向。 第二方向是指向顶叶侧朝向趾侧的方向。 刻痕线槽8和细槽10不交叉。

公开(公告)号：US20170259131A1

公开(公告)日：2017-09-14

申请号：US15443633

申请日：2017-02-27

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Yuki SHIMAHARA

IPC: A63B53/04

CPC classification number: A63B53/047 ,  A63B2053/005 ,  A63B2053/0408 ,  A63B2053/0433

Abstract: A golf club 4 includes a head hd and a sole surface 12. The sole surface 12 includes a ridgeline RL extending from a toe side toward a heel side, a leading surface Si positioned on a face side of the ridgeline RL and inclined upward toward the face side, and a trailing surface S2 positioned on a back side of the ridgeline RL and inclined upward toward the back side. Inclination angles at respective positions of the trailing surface S2 are defined as θ2c at a central position, θ2t at a toe reference position, and θ2h at a heel reference position. Then, the head hd satisfies at least one of the following (a) and (b): (a) The inclination angle θ2t is greater than the inclination angle θ2c (b) The inclination angle θ2h is greater than the inclination angle θ2c.

公开(公告)号：US20170050091A1

公开(公告)日：2017-02-23

申请号：US15239181

申请日：2016-08-17

Applicant: Dunlop Sports Co. Ltd.

Inventor： Yuki SHIMAHARA ,  Naruhiro MIZUTANI

IPC: A63B53/04

CPC classification number: A63B53/04 ,  A63B53/0466 ,  A63B2053/0416 ,  A63B2053/0433 ,  A63B2053/0491

Abstract: A golf club head comprises: a head main body having a hollow therein; a weight member disposed in the hollow and extending from its first end to its second end; a first end side portion of the weight member is secured to a first position of the head main body rotatably around a first axis at the first position so that a second end side portion of the weight member is movable to at least a second position and a third position of the head main body which positions are on a locus described by the first end side portion of the weight member during rotating about said first axis; and a fastener for fixing the second end side portion of the weight member to any of said at least second and third positions of the head main body.

Abstract translation: 高尔夫球杆头包括：头主体，其中具有中空; 配重构件，其设置在所述中空部中并从其第一端延伸到其第二端; 配重构件的第一端侧部分在第一位置处围绕第一轴线可旋转地固定到头主体的第一位置，使得配重构件的第二端侧部分可移动到至少第二位置，并且 所述头主体的第三位置，在所述第一轴线旋转期间，所述位置位于由所述配重构件的第一端侧部分描述的轨迹上; 以及用于将所述配重构件的第二端侧部分固定到所述头主体的所述至少第二和第三位置中的任何一个的紧固件。

公开(公告)号：US20150290502A1

公开(公告)日：2015-10-15

申请号：US14646460

申请日：2013-11-22

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Yuki SHIMAHARA

IPC: A63B53/04

CPC classification number: A63B53/047 ,  A63B2053/0408 ,  A63B2053/0479

Abstract: Provided is an iron type golf club head having an undercut cavity. The iron type golf club head comprises a face portion (2) for hitting a ball; a peripheral edge (2e) of the face portion (2) is provided with a flange portion (7) protruding backward of the head; a rear surface (5) of the face portion (2) is provided with a cavity (C) surrounded by the flange portion (7). The flange portion (7) includes a first flange part (8). The first flange part (8) is provided in its inner surface (8i) side facing to the cavity (C) with a first concave part (10) dented toward the outside of the head so as to form an undercut cavity (c2) extending along the peripheral edge (2e). The cross-section of the first concave part (10) comprises a front wall surface (11) positioned frontward of the head, a rear wall surface (12) positioned backward of the head, and a bottom surface (13) smoothly connecting therebetween, and the cross-section is tapered toward the bottom surface (13). The angle (θ1) formed between the front wall surface (11) and the rear wall surface (12) is not less than 10 degrees and less than 30 degrees, and the bottom surface (13) is formed of a circular arc having a radius (R1) of curvature of not less than 1 mm and less than 2 mm.

Abstract translation: 提供具有底切腔的铁型高尔夫球杆头。 铁型高尔夫球杆头包括用于击球的面部（2）; 面部（2）的周缘（2e）设置有从头部向后突出的凸缘部（7） 面部（2）的后表面（5）设置有由凸缘部（7）包围的空腔（C）。 凸缘部分（7）包括第一凸缘部分（8）。 第一凸缘部分（8）设置在其面向空腔（C）的内表面（8i）侧，具有朝向头部外侧凹陷的第一凹部（10），以形成延伸的底切腔（c2） 沿着周缘（2e）。 第一凹部（10）的截面包括位于头部前方的前壁面（11），位于头部后方的后壁面（12）以及与其平滑连接的底面（13） 并且横截面朝向底面（13）逐渐变细。 形成在前壁面（11）与后壁面（12）之间的角度（＆amp; a; 1）不小于10度且小于30度，并且底面（13）由圆弧形成， 曲率半径（R1）不小于1mm且小于2mm。

公开(公告)号：US20170259133A1

公开(公告)日：2017-09-14

申请号：US15455973

申请日：2017-03-10

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Yuki SHIMAHARA ,  Daisuke KOHNO

IPC: A63B53/04

CPC classification number: A63B53/047 ,  A63B2053/005 ,  A63B2053/0408 ,  A63B2053/0433

Abstract: A set 2 includes two or more iron type golf clubs 4 having loft angles different from each other. Each club 4 includes a shaft sf, a head hd, and a grip gp. The head hd includes a top surface 10, a sole surface 12, and a face surface 14 having a face line gv. The sole surface 12 includes a leading edge E1 and a trailing edge E2. In a planar view of the sole surface 12, the trailing edge E2 is curved so as to project toward a face side. A sole width WSc at a middle position of the face line gv is increased as the loft angle is increased.

公开(公告)号：US20170259132A1

公开(公告)日：2017-09-14

申请号：US15455921

申请日：2017-03-10

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Yuki SHIMAHARA ,  Daisuke KOHNO

IPC: A63B53/04

CPC classification number: A63B53/047 ,  A63B53/04 ,  A63B2053/005 ,  A63B2053/0408 ,  A63B2053/0433

Abstract: A set 2 includes two or more iron type golf clubs 4 having loft angles different from each other. Each club 4 includes a shaft sf, a head hd, and a grip gp. The head hd includes a top surface 10, a sole surface 12, and a face surface 14 having a face line gv. The sole surface 12 includes a leading edge E1 and a trailing edge E2. In a planar view of the sole surface 12, the trailing edge E2 is curved so as to project toward a face side. A sole width WSt at a toe reference position is decreased as the loft angle is increased. A sole width WSh at a heel reference position is decreased as the loft angle is increased.

公开(公告)号：US20160199704A1

公开(公告)日：2016-07-14

申请号：US14915010

申请日：2014-06-09

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Yuki SHIMAHARA

IPC: A63B53/04

CPC classification number: A63B53/00 ,  A63B53/04 ,  A63B53/047 ,  A63B2053/005 ,  A63B2053/0433

Abstract: The present invention provides an iron-type golf club head that is able to increase the amount of backspin while reducing resistance against the ground, and a golf club set. In an iron-type golf club head having a top surface, a sole surface, a toe surface that connects therebetween, and a face surface that hits a ball, the sole surface is provided with a leading surface sloping to a face side and a trailing surface sloping to a back side in a face-back direction, with a visible boundary line extending in a toe-heel direction as an apex.

Abstract translation: 本发明提供一种铁型高尔夫球杆头，其能够在减小对地面的阻力的同时增加反向旋转量，以及高尔夫球杆组。 在具有顶面，鞋底表面，连接在其间的脚趾表面和撞击球的表面的铁型高尔夫球杆头中，鞋底表面设置有倾斜到面侧的前缘面和尾部 表面朝向背面方向倾斜到后侧，具有以趾部方向延伸的可视边界线作为顶点。

公开(公告)号：US20150367199A1

公开(公告)日：2015-12-24

申请号：US14744436

申请日：2015-06-19

Applicant: DUNLOP SPORTS CO., LTD.

Inventor： Yuki SHIMAHARA

IPC: A63B53/04 ,  B23K26/36

CPC classification number: A63B53/047 ,  A63B2053/0445

Abstract: A golf club head including a face surface for hitting a ball is provided. The face surface has a plurality of score lines, a first groove pattern, and a second groove pattern. The score lines extend in a toe-heel direction. The first groove pattern is made up of first micro grooves extending along a plurality of first virtual lines. The second groove pattern is made up of second micro grooves extending along a plurality of second virtual lines intersecting the first virtual lines. At least one out of the first micro grooves and the second micro grooves extend as dashed lines interrupted in a vicinity of intersections between the first virtual lines and the second virtual lines, such that the first micro grooves and the second micro grooves do not overlap each other.

Abstract translation: 提供一种包括用于击球的表面的高尔夫球杆头。 面表面具有多个刻痕线，第一凹槽图案和第二凹槽图案。 刻痕线在脚跟方向延伸。 第一凹槽图案由沿着多个第一虚拟线延伸的第一微槽组成。 第二凹槽图案由沿着与第一虚拟线相交的多个第二虚拟线延伸的第二微槽组成。 第一微槽和第二微槽中的至少一个在第一虚线与第二虚线之间的交叉点附近以虚线延伸，使得第一微槽和第二微槽不重叠 其他。