-
公开(公告)号：US09855475B2
公开(公告)日：2018-01-02
申请号：US15387257
申请日：2016-12-21
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Yuki Motokawa
IPC: A63B53/04
CPC classification number: A63B53/0466 , A63B60/50 , A63B2053/0408 , A63B2053/0433 , A63B2053/045 , A63B2053/0454 , A63B2060/002
Abstract: Provided is a golf club head including a head body that has a hollow structure, a rib, and a welding bead. The head body has a first region. The rib stands upright from an inner surface of the first region. The welding bead fixes the first region and the rib to each other. An opening is formed in side faces of the rib. The welding bead extends from a first position on the inner surface of the first region, passes through the opening, and reaches a second position on the inner surface of the first region.
-
公开(公告)号：US09770635B2
公开(公告)日：2017-09-26
申请号：US15053759
申请日：2016-02-25
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Yuki Motokawa , Kota Yamasawa
CPC classification number: A63B53/0466 , A63B53/04 , A63B60/02 , A63B60/04 , A63B60/52 , A63B2053/0408 , A63B2053/0433 , A63B2053/0491
Abstract: A golf club head is composed of a head main body comprising a face portion, a crown portion and a sole portion, and having a hollow, and a weight member disposed in the hollow of the head main body. The weight member is fixed to a toe side of the head main body at a toe side end portion and fixed to a heel side of the head main body at a heel side end portion so as not to contact with the inner surface of the head main body between the toe side end portion and heel side end portion. The cross-sectional area of the weight member is decreased in a central portion in the toe-heel direction than its heel side and toe side.
-
公开(公告)号：US10729944B2
公开(公告)日：2020-08-04
申请号：US14796037
申请日：2015-07-10
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Yuki Motokawa
IPC: A63B53/04
Abstract: A wood golf club head is provided. The wood golf club head includes a hollow structure body having a face surface for hitting a ball. The hollow structure body has an inner surface and a thick portion in a predetermined region on the inner surface excluding a rear surface of the face surface. The thick portion is located outward of a virtual curved surface and has an outer surface extending along the virtual curved surface. The virtual curved surface is (a) a curved surface centered about a predetermined reference point located inside the hollow structure body or (b) a curved surface having a central axis that is a straight line passing through a reference point located inside the hollow structure body.
-
4.发明授权公开(公告)号：US10335659B2
公开(公告)日：2019-07-02
申请号：US15643247
申请日：2017-07-06
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Yuki Motokawa , Naruhiro Mizutani , Jacob Lambeth
IPC: A63B53/04 , A63B69/36 , A63B60/42 , A63B60/46 , A63B102/32
Abstract: A golf club head having a striking face configured to impact a golf ball comprises the striking face comprising an effective striking area, the effective striking area having an expected COR value, defined by the following expression, not less than 0.810, Expected COR = ∑ i = 1 n ∑ j = 1 m p ij * c ij wherein pij is an impact probability at location or region (i, j) within the effective striking area, and cij is a COR value of the location or region (i, j).
-
公开(公告)号：US09889348B2
公开(公告)日：2018-02-13
申请号：US14438075
申请日：2013-11-22
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Yuki Motokawa
CPC classification number: A63B53/0466 , A63B60/54 , A63B2053/0408 , A63B2053/0433 , A63B2053/045 , A63B2053/0458 , A63B2060/002
Abstract: Provided is a golf club head which produces an improved hitting sound obtained without impairing the appearance of the sole section. A golf club head having a hollow portion (i) formed therein has a sole portion (5) which forms the bottom surface of the head. The sole portion (5) includes a thin-wall portion (8) and a thick-wall portion (9) which has a greater thickness than the thin-wall portion (8). The golf club head is characterized in that a portion of the inner surface of the thick-wall portion (9), the portion facing the hollow section, has a rib (10) secured to the portion by welding.
-
Patent Agency Ranking
公开(公告)号：US09814943B2
公开(公告)日：2017-11-14
申请号：US15359268
申请日：2016-11-22
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Masahide Onuki , Yuki Motokawa , Naruhiro Mizutani
CPC classification number: A63B53/02 , A63B53/0466
Abstract: A golf club 100 includes a head 200 having a hosel part 202, a shaft 300, and an engaging part 600 disposed at a tip part of the shaft 300. The engaging part 600 includes a sleeve 400 which has an oppositely tapered shape and is fixed to the tip part of the shaft 300. The hosel part 202 includes a hosel hole 204, and a hosel slit 206 which is provided on a side of the hosel hole 204 and enables the shaft 300 to pass through the hosel slit 206. The hosel hole 204 has an oppositely tapered hole having a shape corresponding to a shape of an outer surface of the engaging part 600. The engaging part 600 is fitted into the oppositely tapered hole.
-
公开(公告)号：US10369428B2
公开(公告)日：2019-08-06
申请号：US15854279
申请日：2017-12-26
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Yuki Motokawa , Daisuke Kohno
IPC: A63B53/04
Abstract: A golf club head with a hollow therein includes a head main body and a crown member. The head main body includes a face portion having a hitting face, a crown portion provided with an opening and a peripheral region forming around the opening, wherein the opening is covered with the crown member. The peripheral region of the opening includes a mounting portion for mounting the crown member with an interior surface and an exterior surface thereof. The mounting portion, at least, includes a face-side mounting portion, a toe-side mounting portion and a heel-side mounting portion. The crown member includes a face-side peripheral portion fixed to the interior surface of the face-side mounting portion, a toe-side peripheral portion fixed to the exterior surface of the toe-side mounting portion and a heel-side peripheral portion fixed to the exterior surface of the heel-side mounting portion.
-
公开(公告)号：US09616300B2
公开(公告)日：2017-04-11
申请号：US14500117
申请日：2014-09-29
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Yuki Motokawa
CPC classification number: A63B53/0466 , A63B53/04 , A63B53/06 , A63B2053/0433
Abstract: A hollow golf club head comprises a face portion having a club face for hitting a ball, and a club face's perimeter region extending backwards from the face portion. The perimeter region is provided with at least one set of a front part extending backwards from the face portion to have a free rear end, and a rear part extending forwards to have a free front end. The front part and the rear part are overlapped with each other without being fixed to each other so that, relatively to the rear part, the front part is movable in the front-back direction of the club head when hitting a ball.
-
公开(公告)号：US09498684B2
公开(公告)日：2016-11-22
申请号：US14843348
申请日：2015-09-02
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Yuki Motokawa
IPC: A63B53/04
CPC classification number: A63B53/0466 , A63B53/04 , A63B2053/045
Abstract: Provided is a golf club head having a reduced weight while also preventing degradation in the ball hitting sound. The golf club head includes a head body that is a hollow structure, and a rib that rises from an inner surface of the head body. An opening having a non-circular shape is formed in a side surface of the rib. Note that the opening referred to here may be a through-hole or an opening that has a bottom.
Abstract translation: 提供一种具有减轻重量的高尔夫球杆头，同时还防止球击球声音的劣化。 高尔夫球杆头包括头部本体，其是中空结构，以及从头部本体的内表面上升的肋。 在肋的侧面形成具有非圆形形状的开口。 注意，这里提及的开口可以是具有底部的通孔或开口。
-
公开(公告)号：US09283446B2
公开(公告)日：2016-03-15
申请号：US14312257
申请日：2014-06-23
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Yuki Motokawa
CPC classification number: A63B53/02 , A63B53/0466 , A63B2102/32
Abstract: A golf club includes a golf club head and a shaft attached to the golf club head, the golf club including the golf club head provided with a shaft insertion hole having an upper opening and a lower opening, the shaft insertion hole having an internal surface provided with an undercut groove, the shaft having a tip end, a shaft sleeve adaptor attached to the tip end of the shaft, the shaft sleeve adaptor inserted into the shaft insertion hole through the upper opening and having a first thread portion, a fastener comprising a second thread portion engaging with the first thread portion of the shaft sleeve adaptor through the lower opening of the shaft insertion hole, and a washer held in the undercut groove of the shaft insertion hole and disposed between the fastener and the shaft sleeve adaptor.
Abstract translation: 一种高尔夫球杆包括高尔夫球杆头和连接到高尔夫球杆头上的轴，该高尔夫球杆包括设置有具有上开口和下开口的轴插孔的高尔夫球杆头，该轴插入孔具有内表面， 具有底切槽，所述轴具有尖端，连接到所述轴的末端的轴套适配器，所述轴套适配器通过所述上开口插入到所述轴插入孔中，并具有第一螺纹部分，所述紧固件包括： 第二螺纹部分通过轴插入孔的下开口与轴套适配器的第一螺纹部分接合，以及垫圈，其保持在轴插入孔的底切槽中并且设置在紧固件和轴套适配器之间。
-
-
-
-
-
-
-
-
-
Search Results
16
records
(took 0.015 seconds)
