JPH0793956B2 - Golf club head - Google Patents
Golf club headInfo
- Publication number
- JPH0793956B2 JPH0793956B2 JP2307094A JP30709490A JPH0793956B2 JP H0793956 B2 JPH0793956 B2 JP H0793956B2 JP 2307094 A JP2307094 A JP 2307094A JP 30709490 A JP30709490 A JP 30709490A JP H0793956 B2 JPH0793956 B2 JP H0793956B2
- Authority
- JP
- Japan
- Prior art keywords
- head
- golf club
- club head
- air
- top surface
- 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.)
- Expired - Lifetime
Links
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
- A63B53/04—Heads
- A63B53/0437—Heads with special crown configurations
-
- 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
- A63B53/0441—Heads with visual indicators for aligning the golf club
-
- 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
- A63B60/52—Details or accessories of golf clubs, bats, rackets or the like with slits
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/01—Special aerodynamic features, e.g. airfoil shapes, wings or air passages
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)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ウッドタイプのゴルフクラブヘッドに関する
ものであり、特に、スイング時の空気抵抗が少なくボー
ルの飛距離を増大することが出来るものである。Description: TECHNICAL FIELD The present invention relates to a wood type golf club head, and in particular, to a golf ball head having a low air resistance during a swing and capable of increasing a flight distance of a ball. is there.
ゴルフボールの飛距離を増大するにはウッドタイプのゴ
ルフクラブのスイング速度を増大させることが必要であ
り、そのためには、高速度で移動するゴルフクラブヘッ
ドに生じる空気抵抗ができるだけ減少しなければならな
い。In order to increase the flight distance of a golf ball, it is necessary to increase the swing speed of a wood type golf club, and for that purpose, the air resistance generated in a golf club head moving at a high speed must be reduced as much as possible. .
ウッドタイプのゴルフクラブヘッドの空気抵抗を減少さ
せる従来技術としては、実開昭60−128664号公報記載の
技術などがある。As a conventional technique for reducing the air resistance of a wood type golf club head, there is a technique disclosed in Japanese Utility Model Laid-Open No. 60-128664.
同技術によれば、ヘッド本体のトップ部の形状及びソー
ス部の形状を二等辺三角形状とし、更にヘッド本体全体
の形状を偏平な砲弾形状とし、ヘッド本体の空気抵抗を
減少させ、更にヒール部にネック部を設けたものであ
る。According to this technology, the shape of the top portion and the source portion of the head body is an isosceles triangle shape, and the shape of the entire head body is a flat shell shape, which reduces the air resistance of the head body and further the heel portion. It has a neck part.
然し、ヘッド形状を偏平形状としてヘッドの厚みを薄く
するには限度があり、空気抵抗を減少させる効果はあま
り期待できない。However, there is a limit to reducing the thickness of the head by making the head shape flat, and the effect of reducing the air resistance cannot be expected so much.
ウッドタイプのゴルフクラブヘッドによって生じる空気
抵抗の大きさを、ゴルフクラブヘッドの前後の空気圧の
差で間接的に知ることができ、目視で観察する場合には
風洞内に置いたクラブヘッドの周辺の空気の流れによっ
て知ることが出来る。The amount of air resistance generated by a wood-type golf club head can be indirectly known by the difference in air pressure between the front and back of the golf club head. It can be known by the flow of air.
第６図は、従来例におけるフッドタイプのゴルフクラブ
のヘッド１を矢印Ｆで示すスイング方向に切断した縦断
面図であり、ヘッド１の輪郭は、ボール打撃面であるほ
ぼ平面状のフェース面２と、打撃時に上面となり後端部
３につながる曲面状のトップ面４と、トップ面４の反対
側のほぼ平面状の下面５と、下面５から後端部３につな
がる曲面状の後部下面６とによって構成される。FIG. 6 is a vertical cross-sectional view of the head 1 of the conventional hood type golf club cut in the swing direction indicated by arrow F. The outline of the head 1 is a substantially flat face surface 2 which is a ball striking surface. And a curved top surface 4 which becomes an upper surface upon hitting and is connected to the rear end portion 3, a substantially flat lower surface 5 opposite to the top surface 4, and a curved rear surface lower surface 6 which connects the lower surface 5 to the rear end portion 3. Composed of and.
このヘッド１と同形状のモデル１′を風洞内に設置し、
矢印Ｆの反対方向に空気を整流状態にして送風すると、
第７図に示すように、トップ面４の頂部Ｐ′を過ぎた位
置で空気流がトップ面４から剥離を起こし、その後方で
空気が乱れて渦巻き状態を生じる。A model 1'having the same shape as this head 1 is installed in the wind tunnel,
When air is rectified and blown in the opposite direction of arrow F,
As shown in FIG. 7, the air flow separates from the top surface 4 at a position past the top P'of the top surface 4, and the air is turbulent behind the top surface 4 to create a spiral state.
下面５は平面状であるので、下面５の先端のリーディン
グエッジＱから空気の剥離を生じ、大きな抵抗になって
いる。Since the lower surface 5 is flat, air is separated from the leading edge Q at the tip of the lower surface 5, and the resistance is large.
これらの空気の乱れを減少させればヘッド１の空気抵抗
を減少させることが出来る。If the turbulence of the air is reduced, the air resistance of the head 1 can be reduced.
本発明は、トップ面４の頂部Ｐ′から後方の空気の流れ
の乱れを減少させることにより、ヘッド１の速度を増大
させることを目的としたものである。The present invention aims to increase the speed of the head 1 by reducing the turbulence of the air flow rearward from the top P'of the top surface 4.
上記目的を達成するために、ウッドタイプのゴルフクラ
ブヘッドにおいて、ヘッドのトップ面に形成された曲面
のほぼ頂部に、ゴルフクラブヘッドの打撃用のフェース
面にほぼ平行な方向に長い凹溝を形成し、下面の形状を
中央部が膨出した曲面形状とした。In order to achieve the above object, in a wood type golf club head, a long groove is formed in a direction substantially parallel to the striking face surface of the golf club head, almost at the top of the curved surface formed on the top surface of the head. Then, the shape of the lower surface is a curved surface shape with a bulged central portion.
上記のように構成されたウッドタイプのゴルフクラブヘ
ッドは、スイングしたときに、ヘッドのトップ面を流れ
る空気流は、ヘッドのトップ面のほぼ頂部に設けられた
凹溝に空気が入り、この空気がトップ面に沿って流れる
空気流の抵抗を減少し、ヘッドの後方の空気の乱れを減
少する。With the wood-type golf club head configured as described above, when swinging, the air flow that flows on the top surface of the head is such that air enters the concave groove provided almost at the top of the top surface of the head. Reduces the resistance of the air flow along the top surface and reduces the air turbulence behind the head.
一方、ヘッドの下面を流れる空気流は、下面の形状が、
中央部が膨出した曲面形状であるので、下面の空気抵抗
も減少し、ゴルフクラグ全体の空気抵抗を更に減少する
ことができる。On the other hand, the airflow flowing under the head has
Since the center portion has a bulged curved surface shape, the air resistance of the lower surface is also reduced, and the air resistance of the entire golf crag can be further reduced.
本発明の実施例について図面を参照しながら説明する。 Embodiments of the present invention will be described with reference to the drawings.
第１図は、ヘッドのトップ面に凹溝を設けた場合の効果
を確認するために使用されるヘッド７を矢印Ｆで示すス
イング方向に切断した縦断面図であり、ヘッド７の輪郭
は、従来例のヘッド１の輪郭と同一形状であり、平面状
のフェース面２と、後端部３につながる曲面状のトップ
面４と、ほぼ平面状の下面５と、下面５から後端部３に
つながる曲面状の後部下面６を有するが、トップ面４の
ほぼ頂部Ｐに、フェース面にほぼ平行な方向に長い凹溝
８を形成した（第２図参照）。FIG. 1 is a vertical cross-sectional view of the head 7 used for confirming the effect of providing a groove on the top surface of the head, taken in the swing direction indicated by arrow F. The outline of the head 7 is It has the same shape as the contour of the head 1 of the conventional example, a flat face surface 2, a curved top surface 4 connected to the rear end portion 3, a substantially flat lower surface 5, and the lower surface 5 to the rear end portion 3. Although it has a curved rear lower surface 6 connected to, a long groove 8 is formed substantially in the top portion P of the top surface 4 in a direction substantially parallel to the face surface (see FIG. 2).
ヘッド７と同形状のモデル７′を風洞実験すると、第３
図に示すように、トップ面４に沿って流れる空気がトッ
プ面４より剥離する位置が従来のものに比較して後方
（左側）に移動する。A wind tunnel test of a model 7'having the same shape as the head 7 shows that
As shown in the figure, the position where the air flowing along the top surface 4 separates from the top surface 4 moves rearward (left side) as compared with the conventional one.
この理由としては、第１図の鎖線で示すように、凹溝８
の後部（左側）に入った空気が凹溝８に沿って渦巻き、
凹溝８の前部から上方の空気流に合流するので空気流の
流れが増加し、剥離位置が後方（左側）に移動し、空気
抵抗が減少するものと考えられる。The reason for this is as shown by the chain line in FIG.
The air entering the rear part (left side) swirls along the concave groove 8,
It is conceivable that the air flow is increased from the front part of the concave groove 8 so that the air flow is increased, the separation position is moved rearward (left side), and the air resistance is decreased.
モデル１′及びモデル７′の手前の点Ａの空気圧力をP1
とし、背後の点Ｂの空気圧力をP2とし、粘性係数をρと
し、風速をｖとした場合の圧力係数Cpは、 となる。Set the air pressure at point A in front of model 1'and model 7'to P 1
When the air pressure at the point B behind is P 2 , the viscosity coefficient is ρ, and the wind speed is v, the pressure coefficient Cp is Becomes
各風速ｖにおけるモデル１′の圧力係数Cpを第１表に、
モデル７′の圧力係数Cpを第２表に示す。 Table 1 shows the pressure coefficient Cp of the model 1'at each wind speed v.
Table 2 shows the pressure coefficient Cp of the model 7 '.
第１表及び第２表を対比してみると、凹溝８を有するモ
デル７′の方が圧力係数Cpが約10％向上することが判
る。By comparing Tables 1 and 2, it can be seen that the pressure coefficient Cp of the model 7'having the concave groove 8 is improved by about 10%.
第４図はゴルフクラブヘッド７の下面を、中央部が膨出
した曲面形状としたウッドタイプのゴルフクラブのヘッ
ド９を矢印Ｆで示すスイング方向に切断した縦断面図で
あり、下面５及び後部下面６の形状を中央部が膨出した
なだらかな曲面を有する下面１とした他は第一実施例の
ゴルフクラブのヘッド７と同様である。FIG. 4 is a vertical cross-sectional view of the lower surface of the golf club head 7, which is obtained by cutting the head 9 of a wood type golf club having a curved shape with a central portion bulging in the swing direction indicated by arrow F. The lower surface 6 is the same as the head 7 of the golf club of the first embodiment, except that the lower surface 1 has the shape of a gentle curved surface with a bulged central portion.
ヘッド９と同形状のモデル９′を風洞実験すると、第５
図に示すように、トップ面４のみならず下面10に沿って
流れる空気も整流状態となって流れるので、第３表に示
すように、モデル１′に対して圧力係数Cpが約35％、モ
デル７′に対して約20％も向上する。A wind tunnel test of a model 9'having the same shape as the head 9 shows
As shown in the figure, since the air flowing not only along the top surface 4 but also along the lower surface 10 flows in a rectified state, as shown in Table 3, the pressure coefficient Cp is about 35% for the model 1 ', It is about 20% better than the model 7 '.
〔発明の効果〕 本発明は、以上説明したように構成されているので、以
下に示すような効果を奏する。 [Advantages of the Invention] Since the present invention is configured as described above, it has the following effects.
（１） ウッドタイプのゴルフクラブヘッドのトップ面
に形成された曲面のほぼ頂部に、ゴルフクラブヘッドの
打撃用のフェース面にほぼ平行な方向に長い凹溝を形成
することにより、ヘッドの空気抵抗を減少しヘッドのス
イング速度を上昇することが出来るので、ボールの飛距
離を増大出来る。(1) The air resistance of the head is formed by forming a long groove in a direction substantially parallel to the striking face surface of the golf club head almost at the top of the curved surface formed on the top surface of the wood type golf club head. Can be reduced and the swing speed of the head can be increased, so that the flight distance of the ball can be increased.
（２） トップ面に形成された曲面のほぼ頂部に、ゴル
フクラブヘッドの打撃用のフェース面にほぼ平行な方向
に長い凹溝を形成するだけでなく、下面の形状を中央部
が膨出した曲面形状とすると、ヘッド下面の空気抵抗も
減少出来るので、更にボールの飛距離を増大出来る。(2) In addition to forming a long groove substantially parallel to the striking face surface of the golf club head at the top of the curved surface formed on the top surface, the shape of the bottom surface bulges in the central portion. When the curved surface is used, the air resistance on the lower surface of the head can be reduced, and the flight distance of the ball can be further increased.
第１図は、ヘッドのトップ面に凹溝を設けた場合の効果
を確認するために使用されるヘッドをスイング方向に切
断した縦断面図、 第２図は第１図のヘッドの斜視図、 第３図は第１図の同形状のヘッドのモデルの風洞実験に
おける空気の流れを示す正面図、 第４図は第１図のヘッドの下面を、中央部が膨出した曲
面形状とした本発明のゴルフクラブヘッドの縦断面図、 第５図は第４図の同形状のヘッドのモデルの風洞実験に
おける空気の流れを示す正面図、 第６図は従来のウッドタイプのゴルフクラブヘッドの縦
断面図、 第７図は第６図の同形状のヘッドのモデルの風洞実験に
おける空気の流れを示す正面図である。 ２……フェース面、４……トップ面、５……下面、６…
…後部下面、７……ヘッド、７′……モデル、８……凹
溝、９……ヘッド、９′……モデル、P,P′……頂部。1 is a vertical cross-sectional view of the head used in order to confirm the effect of providing a groove on the top surface of the head in the swing direction, and FIG. 2 is a perspective view of the head of FIG. FIG. 3 is a front view showing the air flow in a wind tunnel experiment of the head model of the same shape shown in FIG. 1, and FIG. 4 is a book in which the lower surface of the head shown in FIG. FIG. 5 is a vertical sectional view of the golf club head of the invention, FIG. 5 is a front view showing the air flow in the wind tunnel experiment of the head model of the same shape shown in FIG. 4, and FIG. 6 is a longitudinal section of a conventional wood type golf club head. FIG. 7 is a front view showing an air flow in a wind tunnel experiment of the head model of the same shape shown in FIG. 2 ... face surface, 4 ... top surface, 5 ... bottom surface, 6 ...
... rear bottom surface, 7 ... head, 7 '... model, 8 ... concave groove, 9 ... head, 9' ... model, P, P '... top.
Claims (1)
て、ヘッドのトップ面に形成された曲面のほぼ頂部に、
ゴルフクラブヘッドの打撃用のフェース面にほぼ平行な
方向に長い凹溝を形成し、下面の形状を中央部が膨出し
た曲面形状としたことを特徴とするゴルフクラブヘッ
ド。1. In a wood type golf club head, substantially at the top of a curved surface formed on the top surface of the head,
A golf club head, characterized in that a long groove is formed in a direction substantially parallel to the striking face surface of the golf club head, and the lower surface has a curved shape with a bulged central portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2307094A JPH0793956B2 (en) | 1990-11-15 | 1990-11-15 | Golf club head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2307094A JPH0793956B2 (en) | 1990-11-15 | 1990-11-15 | Golf club head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04180778A JPH04180778A (en) | 1992-06-26 |
| JPH0793956B2 true JPH0793956B2 (en) | 1995-10-11 |
Family
ID=17964955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2307094A Expired - Lifetime JPH0793956B2 (en) | 1990-11-15 | 1990-11-15 | Golf club head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0793956B2 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4784027B2 (en) * | 2001-09-20 | 2011-09-28 | ブリヂストンスポーツ株式会社 | Golf club head |
| US8235844B2 (en) | 2010-06-01 | 2012-08-07 | Adams Golf Ip, Lp | Hollow golf club head |
| US8900069B2 (en) | 2010-12-28 | 2014-12-02 | Taylor Made Golf Company, Inc. | Fairway wood center of gravity projection |
| US9943734B2 (en) | 2004-11-08 | 2018-04-17 | Taylor Made Golf Company, Inc. | Golf club |
| US8206244B2 (en) | 2008-01-10 | 2012-06-26 | Adams Golf Ip, Lp | Fairway wood type golf club |
| US8632419B2 (en) * | 2010-03-05 | 2014-01-21 | Callaway Golf Company | Golf club head |
| US8821312B2 (en) | 2010-06-01 | 2014-09-02 | Taylor Made Golf Company, Inc. | Golf club head having a stress reducing feature with aperture |
| US9089749B2 (en) | 2010-06-01 | 2015-07-28 | Taylor Made Golf Company, Inc. | Golf club head having a shielded stress reducing feature |
| US8827831B2 (en) | 2010-06-01 | 2014-09-09 | Taylor Made Golf Company, Inc. | Golf club head having a stress reducing feature |
| US8602910B2 (en) * | 2010-08-06 | 2013-12-10 | Karsten Manufacturing Corporation | Golf club heads with edge configuration and methods to manufacture golf club heads |
| US9707457B2 (en) | 2010-12-28 | 2017-07-18 | Taylor Made Golf Company, Inc. | Golf club |
| US8888607B2 (en) | 2010-12-28 | 2014-11-18 | 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 |
| US10065082B2 (en) | 2014-07-22 | 2018-09-04 | Taylor Made Golf Company, Inc. | Golf club |
| JP6708393B2 (en) * | 2015-11-06 | 2020-06-10 | ブリヂストンスポーツ株式会社 | Golf club head |
| JP6749132B2 (en) * | 2016-04-20 | 2020-09-02 | ブリヂストンスポーツ株式会社 | Golf club head |
| JP6815097B2 (en) * | 2016-05-19 | 2021-01-20 | ブリヂストンスポーツ株式会社 | Golf club head |
| US10653926B2 (en) | 2018-07-23 | 2020-05-19 | Taylor Made Golf Company, Inc. | Golf club heads |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03114477A (en) * | 1989-09-29 | 1991-05-15 | Yokohama Rubber Co Ltd:The | Head of wood golf club |
| JP2532650Y2 (en) * | 1989-04-20 | 1997-04-16 | 横浜ゴム株式会社 | Wood Golf Club Head |
-
1990
- 1990-11-15 JP JP2307094A patent/JPH0793956B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04180778A (en) | 1992-06-26 |
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