GB2445071A - Wood club head - Google Patents
Wood club head Download PDFInfo
- Publication number
- GB2445071A GB2445071A GB0723802A GB0723802A GB2445071A GB 2445071 A GB2445071 A GB 2445071A GB 0723802 A GB0723802 A GB 0723802A GB 0723802 A GB0723802 A GB 0723802A GB 2445071 A GB2445071 A GB 2445071A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hosel
- club head
- ball
- less
- range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000002023 wood Substances 0.000 title claims abstract description 16
- 238000011156 evaluation Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0466—Heads wood-type
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/02—Joint structures between the head and the shaft
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0408—Heads characterised by specific dimensions, e.g. thickness
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Golf Clubs (AREA)
Abstract
A wood club head having a loft angle of not less than 13{, the hosel length is not less than 20 mm, the face progression FP is set to fall within a range of 12 mm to 16 mm (both exclusive) the barycenter depth ZG is set to fall within a range of 20 mm to 25 mm (both exclusive). Alternatively a wood club head having a loft angle of not less than 13{, the hosel length is not less than 20 mm, the face progression is set to fall within a range of 16 mm to 20 mm (both exclusive) the barycenter depth is set to fall within a range of 25 mm to 30 mm (both exclusive) is also described.
Description
TITLE OF THE INVENTION
BACKGROUND OF THE INVENTION
Field of the Invention
(0001] The present invention relates to a wood club head having a loft angle of 13 or more, or a head of so-called fairway wood.
Description of the Related Art
(0002] In a conventional fairway wood, the amount of spin, the impact feeling, and the like are designed by variously changing the values of a barycenter depth (ZG) representing the distance from the face to the barycenter, a face progression (FP) representing the distance from the shaft axis to the leading edge of the face, and a hosel length representing the length of the cylindrical portion of the hosel. When the value ZG is large, the face tends to be directed more upward upon impact, and the ball can spin and rise higher more easily. The larger the FP value, the more easily the ball tends to rise high, but the worse ball grippability becomes. A loft angle is the measurement value of an angle formed by the shaft and face when the face is set in a square state, and represents the upward angle of the face. For an ordinary golfer whose head speed is not high, a fairway wood is generally designed to grip and spin the ball well so the ball rises high easily.
(0003] As a golf club head that is focused on the FP value, one with an FP vale falling within a range of 7 mm to 20 mm (both inclusive) is known (for example, see Japanese Patent Laid-Open No. 11-178958) . Another golf club head that is focused on the barycenter depth (ZG) is also known (for example, Japanese Patent Laid-Open No. 2002-21004 5) (0004] None of Japanese Patent Laid-Open Nos. 11- 178958 and 2002-210045 provides a golf club head which is designed by combining the ZG and FP values and the hosel length of the fairway wood so that a golfer having a high head speed can hit a ball with it easily.
If only the ZG and FP values are so designed that the ball can rise high easily, when the golfer having a high head speed hits a ball with the golf club head, the ball rises too high. Such a ball tends to yield to the wind and lose its traveling distance.
SUMMARY OF THE INVENTION
(0005] The present invention is made by taking also the hosel length into account, and has as its object to provide a wood club head which can be adapted to different hosel lengths so that when a golfer having a high head speed hits a ball with it, the ball can rise high easily but does not rise too high, providing a strong trajectory and a long traveling distance.
(0006] According to the present invention, there is provided a wood club head having a loft angle of not less than 13 , characterized in that a hosel length is of not less than 20 mm, a face progression (FP value) is set to fall within a range of 12 mm to 16 mm (both exclusive), and a barycenter depth is set to fall within a range of 20 mm to 25 mm (both exclusive).
(0007] According to the present invention, since the hosel length is of not less than 20 mm, the club head tends to draw a sweep (obtuse) trajectory upon impact and the loft tends to be at a high angle so that the ball tends to rise high easily. By decreasing the ZG value and FP value, the ball does not rise too high, so that a strong trajectory can be obtained. The traveling distance also increases.
8] According to the present invention, there is provided a wood club head having a loft angle of not less than 13 , characterized in that a hosel length is of not more than 20 mm, a face progression (FP value) is set to fall within a range of 16 mm to 20 mm (both exclusive), and a barycenter depth is set to fall within a range of 25 mm to 30 mm (both exclusive).
(0009] According to the present invention, since the hosel length is of not more than 20 mm, the club head tends to draw a down blow (acute) trajectory upon impact and the loft tends to be at a low angle so that the ball does not rise high easily. By increasing the FP value, the face tends to be opened upon impact and by increasing the ZG so the ball spin easily, the ball is prevented from rising too high. Then, a strong ball flight and a long traveling distance can be obtained.
0] Further features of the present invention will become apparent from the following description of exemplary embodiments (with reference to the attached drawings).
BRIEF DESCRIPTION OF THE DRAWINGS
1] Fig. 1 is a side view showing an embodiment of the present invention; and (0012] Fig. 2 is a front view showing the embodiment of the present invention.
DESCRIPTION OF THE EMBODIMENT
(0013] A preferred embodiment of the present invention will be described with reference to the accompanying drawings.
(0014] Figs. 1 and 2 are a side view and front view, respectively, of a wood club head having a loft angle of 13 or less. A head main body 1 is provided with a hosel 2. A shaft (not shown) is fixed into the hosel 2. The distance from a face 3 of the head main body 1 to the barycenter is defined as a barycenter depth ZG. A length I-IL of the hosel 2 represents the length of the cylindrical portion. The distance from a shaft axis S to a leading edge 4 is defined as a face progression (FP).
5] As the head main body 1, the embodiment used one which was made by casting stainless steel and had a volume falling within a range of 150 cm3 to 250 cm3 and a head weight falling within a range of 200 g to 250 g. When the vertical distance from a sole S of the head main body 1 to a barycenter position CG was defined as a barycenter height, the barycenter height was designed to 18 mm or less. The club length was 43 inches or less, and the total weight was 300 g or more.
In such a fairway wood, the FP value (mm), ZG value (mm), and hosel length (mm) were changed to provide Examples 1 and 2 and Comparative Examples 1 to 6. A golfer having a head speed of 45 rn/sec to 50 rn/sec actually hit a ball with the manufactured fairway woods. The respective launch angles and amounts of spin were measured.
(0016] ____ Table 1 ________ ______________ FP ZG Hosel Launch-Spin Evaluation Length ing Amount _________ ____ ____ _______ Angle _______ Compar-14 23 10 8 2700 Not high ative enough
Example
1 _____ _____ _________ ___________ __________ Example 14 23 30 10 3500 Good Compar-14 27 10 9 3900 Slightly too ative high
Example
2 _____ _____ __________ ___________ __________ __________________ Cornpar-14 27 30 11 4200 Too high ative
Example
3 __ __ ____ ____ ____ Compar-18 23 10 10 2500 Too strong ative
Example
4 ______ _____ ___________ _____________ ___________ Compar-18 23 30 12 4100 Too high ative
Example
_____ _____ __________ ___________ __________ __________________
Example 18 27 10 11 3300 Good 2 _____ _____ __________ ___________ __________ __________________ Compar-18 27 30 13 4800 Considerably ative too high
Example
6 _____ _____ __________ ___________ __________ _________________ [0017] In Table 1, short-hosel (10 mm) fairway woods were made with a large FP and large ZG. Table 2 shows this group. Long-hosel (30 mm) fairway woods were made with a small FP and small ZG. Table 3 shows this group.
(0018] ____ ____ Table 2 ________ _____________ FP ZG Hosel Launch-Spin Evaluation Length ing rnount _________ ____ ____ _______ Angle _______ _____________ Compar-14 23 10 8 2700 Not high ative enough
Example
Compar-14 27 10 9 3900 Slightly too ative high
Example
2 _____ _____ __________ ___________ __________ __________________ Compar-18 23 10 10 2500 Too strong ative
Example
4 _____ _____ ___________ _____________ ___________ ____________________ Example 18 27 10 11 3300 Good 2 _____ _____ __________ ___________ __________ __________________ (0019] __________ ____ ____ Table 3 ________ ______________ FP ZG Hosel Launch-Spin Evaluation Length ing Amount _________ ___ ___ _______ Angle _______ _____________ Example 14 23 30 10 3500 Good Compar-14 27 30 11 4200 Too high ative
Example
3 _____ _____ ___________ ____________ ___________ ___________________ Compar-18 23 30 12 4100 Too high ative
Example
_____ _____ ___________ ____________ ___________ ___________________
Compar-18 27 30 13 4800 Considerably ative too high
Example
6 _____ _____ ___________ ____________ ___________ ___________________ (0020] This embodiment studies the fact that when the hosel length HL exceeds 20 mm, the FP value (mm) may be set to satisfy 12 < FP < 16 and the ZG value (mm) may be set to satisfy 20 < ZG < 25, so that a resultant fairway wood is suitable for a golfer having a high head speed (45 m/sec). When setting the barycenter height to 18 mm or less, it is desirable to set the hosel length HL to fall within a range of 35 nun to 40 mm (inclusive) at a maximum. In this case, if forming the hosel 2 from titanium having a small specific gravity, or its alloy, the barycenter height can be decreased even if the hosel length HL is large.
1] When a short hosel with a hosel length of mm or less (0 < HL < 20) is designed, 16 < FT < 20 and 25 < ZG < 30 must be satisfied. With a short hosel that satisfies 0 < HL < 20, the club head tends to draw a down blow trajectory upon impact and the loft tends to be at a low angle, so the ball does not rise high easily. By increasing the FT value and ZG value, the ball rises high but does not rise too high, providing a strong ball flight. As a result, a long traveling distance can also be obtained.
(0022] The head weight desirably includes a main body weight of 190 g or more and an additional weight (a tungsten weight or the like is added to an appropriate portion) of 30 g or more. Desirably, the volume is 150 cm3 to 250 cm3, the barycenter height is 18 mm or less, and the head main body 1 is made by casting stainless steel. The head volumes, club lengths, and total weights of #3 to #5 fairway woods were set as follow. The FT value and ZG value of each short hosel and each long hosel were set to fall within the ranges described above.
#3.. .168 cm3.. .42.5 inches. . .329 g -10 - #4.. .160 cm3.. .42.25 inches.. .331g #5.. .155 cm3.. .42 inches. . . 333g (0023] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
-11 -
Claims (2)
- WHAT IS CLAIMED IS: 1. A wood club head having a loft angle of not lessthan 13 , characterized in that: a hosel length is of not less than 20 mm; a face progression is set to fall within a range of 12 mm to 16 mm (both exclusive); and a barycenter depth is set to fall within a range of 20 mm to 25 mm (both exclusive)
- 2. A wood club head having a loft angle of not less than 13 , characterized in that: a hosel length is of not more than 20 mm; a face progression is set to fall within a range of 16 mm to 20 mm (both exclusive); and a barycenter depth is set to fall within a range of 25 mm to 30 mm (both exclusive).-12 -
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006344484A JP5087781B2 (en) | 2006-12-21 | 2006-12-21 | Wood club head |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0723802D0 GB0723802D0 (en) | 2008-01-16 |
GB2445071A true GB2445071A (en) | 2008-06-25 |
Family
ID=38983036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0723802A Withdrawn GB2445071A (en) | 2006-12-21 | 2007-12-05 | Wood club head |
Country Status (5)
Country | Link |
---|---|
US (2) | US20080153624A1 (en) |
JP (1) | JP5087781B2 (en) |
KR (1) | KR20080058153A (en) |
CN (1) | CN101204621A (en) |
GB (1) | GB2445071A (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8900069B2 (en) | 2010-12-28 | 2014-12-02 | Taylor Made Golf Company, Inc. | Fairway wood center of gravity projection |
US10639524B2 (en) | 2010-12-28 | 2020-05-05 | Taylor Made Golf Company, Inc. | Golf club head |
US10016662B1 (en) | 2014-05-21 | 2018-07-10 | Taylor Made Golf Company, Inc. | Golf club |
US9975011B1 (en) | 2014-05-21 | 2018-05-22 | Taylor Made Golf Company, Inc. | Golf club |
JP5852756B1 (en) * | 2015-02-26 | 2016-02-03 | ダンロップスポーツ株式会社 | Golf club head |
US9914027B1 (en) | 2015-08-14 | 2018-03-13 | Taylor Made Golf Company, Inc. | Golf club head |
US10207160B2 (en) | 2016-12-30 | 2019-02-19 | Taylor Made Golf Company, Inc. | Golf club heads |
US20180345099A1 (en) | 2017-06-05 | 2018-12-06 | Taylor Made Golf Company, Inc. | Golf club heads |
US10653926B2 (en) | 2018-07-23 | 2020-05-19 | Taylor Made Golf Company, Inc. | Golf club heads |
JP2021180776A (en) * | 2020-05-19 | 2021-11-25 | 住友ゴム工業株式会社 | Golf club |
US11759685B2 (en) | 2020-12-28 | 2023-09-19 | Taylor Made Golf Company, Inc. | Golf club heads |
US11406881B2 (en) | 2020-12-28 | 2022-08-09 | Taylor Made Golf Company, Inc. | Golf club heads |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2170719A (en) * | 1984-12-25 | 1986-08-13 | Bridgestone Corp | Golf club set |
GB2178326A (en) * | 1985-08-05 | 1987-02-11 | Spalding & Evenflo | Golf club construction |
US5795240A (en) * | 1992-10-22 | 1998-08-18 | Dunlop Maxfli Sports Corporation | Mechanical locking device for attaching a shaft to a golf club head |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2588878B2 (en) * | 1986-07-21 | 1997-03-12 | 征一郎 寺本 | Golf club set |
JP2615052B2 (en) * | 1987-06-05 | 1997-05-28 | ブリヂストンスポーツ株式会社 | Golf club set |
US5141231A (en) * | 1990-12-14 | 1992-08-25 | Elizabeth Ann Martin | Golf club face shield |
JPH09253241A (en) * | 1996-03-18 | 1997-09-30 | Bridgestone Sports Co Ltd | Golf club |
US5916038A (en) * | 1996-10-29 | 1999-06-29 | Mitsuko Uchiyama | Golf wood club |
US5888148A (en) * | 1997-05-19 | 1999-03-30 | Vardon Golf Company, Inc. | Golf club head with power shaft and method of making |
US5888149A (en) * | 1997-09-08 | 1999-03-30 | Allen; Dillis V. | Golf club head with shortened hosel and ferrule |
US6254494B1 (en) * | 1998-01-30 | 2001-07-03 | Bridgestone Sports Co., Ltd. | Golf club head |
US5935020A (en) * | 1998-09-16 | 1999-08-10 | Tom Stites & Associates, Inc. | Golf club head |
JP2000084124A (en) * | 1998-09-16 | 2000-03-28 | Bridgestone Sports Co Ltd | Wood club head |
JP2001137396A (en) * | 1999-11-12 | 2001-05-22 | Bridgestone Sports Co Ltd | Golf club head |
JP2001170221A (en) * | 1999-12-16 | 2001-06-26 | Bridgestone Sports Co Ltd | Golf club set |
JP2001286583A (en) * | 2000-02-02 | 2001-10-16 | Sumitomo Rubber Ind Ltd | Golf club set |
US6524194B2 (en) * | 2001-01-18 | 2003-02-25 | Acushnet Company | Golf club head construction |
JP4044363B2 (en) * | 2002-05-01 | 2008-02-06 | Sriスポーツ株式会社 | Wood type golf club head |
US6776723B2 (en) * | 2002-06-17 | 2004-08-17 | Karsten Manufacturing Corporation | Metal wood golf club with progressive weighting |
US6939247B1 (en) * | 2004-03-29 | 2005-09-06 | Karsten Manufacturing Corporation | Golf club head with high center of gravity |
-
2006
- 2006-12-21 JP JP2006344484A patent/JP5087781B2/en not_active Expired - Fee Related
-
2007
- 2007-08-31 CN CNA2007101462775A patent/CN101204621A/en active Pending
- 2007-09-10 KR KR1020070091372A patent/KR20080058153A/en not_active Application Discontinuation
- 2007-12-05 GB GB0723802A patent/GB2445071A/en not_active Withdrawn
- 2007-12-19 US US11/959,870 patent/US20080153624A1/en not_active Abandoned
-
2009
- 2009-05-08 US US12/437,898 patent/US20090221383A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2170719A (en) * | 1984-12-25 | 1986-08-13 | Bridgestone Corp | Golf club set |
GB2178326A (en) * | 1985-08-05 | 1987-02-11 | Spalding & Evenflo | Golf club construction |
US5795240A (en) * | 1992-10-22 | 1998-08-18 | Dunlop Maxfli Sports Corporation | Mechanical locking device for attaching a shaft to a golf club head |
Also Published As
Publication number | Publication date |
---|---|
US20090221383A1 (en) | 2009-09-03 |
KR20080058153A (en) | 2008-06-25 |
GB0723802D0 (en) | 2008-01-16 |
CN101204621A (en) | 2008-06-25 |
JP2008154674A (en) | 2008-07-10 |
US20080153624A1 (en) | 2008-06-26 |
JP5087781B2 (en) | 2012-12-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |