JP2009000281A - Metal wood club head - Google Patents

Metal wood club head Download PDF

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Publication number
JP2009000281A
JP2009000281A JP2007163774A JP2007163774A JP2009000281A JP 2009000281 A JP2009000281 A JP 2009000281A JP 2007163774 A JP2007163774 A JP 2007163774A JP 2007163774 A JP2007163774 A JP 2007163774A JP 2009000281 A JP2009000281 A JP 2009000281A
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JP
Japan
Prior art keywords
head
crown
plurality
club head
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.)
Withdrawn
Application number
JP2007163774A
Other languages
Japanese (ja)
Inventor
Yutaka Kawada
Mitsuhiro Saso
Tomohiko Sato
Sunao Umemura
光廣 佐想
友彦 佐藤
裕 川田
直 梅村
Original Assignee
Yutaka Kawada
Mitsuhiro Saso
Tomohiko Sato
Sunao Umemura
光廣 佐想
友彦 佐藤
裕 川田
直 梅村
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yutaka Kawada, Mitsuhiro Saso, Tomohiko Sato, Sunao Umemura, 光廣 佐想, 友彦 佐藤, 裕 川田, 直 梅村 filed Critical Yutaka Kawada
Priority to JP2007163774A priority Critical patent/JP2009000281A/en
Publication of JP2009000281A publication Critical patent/JP2009000281A/en
Application status is Withdrawn legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00Other characteristics of sports equipment
    • A63B2225/01Special aerodynamic features, e.g. airfoil shapes, wings or air passages

Abstract

<P>PROBLEM TO BE SOLVED: To provide a club head for considerably extending distance of a golf ball. <P>SOLUTION: In a metal wood type club head 10, a plurality of dimple rows 20 are formed in parallel to one another at a part on the side of a hit face 11 on the crown 12 surface and a plurality of circle dimples along a crown 12 front edge are placed to form the respective plurality of dimple rows 20. Moreover, the plurality of dimple rows 21 are preferably formed in parallel to one another at a part on the side of a head back surface 13 on the crown 12 surface. A flat surface 13A is preferably formed via a step part on the head back surface 13 and the head back surface 13 are formed into a roof shape projected backward. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a metal wood type club head, and more particularly to a club head which can greatly extend the flight distance of a golf ball.

  If the flight distance of a golf ball greatly increases during a golf competition, the next shot can be easily performed, leading to an increase in score.

  By the way, an air flow is generated along the head surface from the striking face during the downswing, but the air flow becomes a turbulent flow with a vortex in the crown, sole, hosel, etc., and the fluid resistance acting on the head is large, and the head speed is increased. It is known to reduce.

  Therefore, a club head (Patent Document 1) in which dimples are provided on the entire outer surface of the head excluding the striking face to reduce air resistance, and dimples having different sizes are formed on the crown of the head so as to reduce air resistance. The proposed club head (Patent Document 2) and the club head (Patent Document 3) in which dimples are provided behind the separation point of the crown airflow to reduce the air resistance.

JP 2001-259089 A JP 2002-272883 A Japanese Patent Laid-Open No. 06-7484

  However, in the club heads described in Patent Documents 1 to 3, the air flow was not suppressed or reduced as expected, and the head speed was not increased so much.

  In such a situation, an object of the present invention is to provide a metal wood type club head that can significantly increase or decrease the head speed by largely suppressing or reducing the disturbance of the air flow on the head surface.

  Therefore, the metal wood type club head according to the present invention is a metal wood type club head in which the head outer surface is composed of a striking face, a crown, a head back surface and a sole, and a plurality of dimples are provided on the striking face side of the crown surface. The rows are formed in parallel to each other, and each of the plurality of dimple rows is configured by arranging a plurality of circular dimples (dents) along the front edge of the crown.

Now calculate the head speed. 1) First, the head speed V0 is assumed. 2) Assume drag coefficient. The drag coefficient is determined by the Cd type. 3) Calculate the drag force using the formula Ff = 0.5 * ρ * V ^ 2 * Area * Cd. 4) Assume a swing-down force Fg. 5) Assume a swing-down force minus aerodynamic force. Fag = Fg-0,5 * Ff. Assuming average fluid force in all swing-down processes. 6) Calculate the speed. Kinetic energy = work of gravity + work by force applied to the head,
0.5 * (W / G) * √2 = WH + ∫ (Fm−Ff) dΘ = WH + Faq * Θf
V = (2G) ^ 0.5 * (H + Faq * Θf / W) ^ 0.5
If the first V0 is the same as the formed V0, it is appropriate to obtain the fluid force.

  Here, since the resistance of the head is proportional to the square of the head speed, the first power of the resistance coefficient, and the first power of the projected area, it is effective to reduce the head resistance.

  One of the features of the present invention is that a dimple row is formed at the front portion of the crown surface. As a result, separation of the air flow at the front part of the crown surface is suppressed, air flows smoothly along the crown, and generation of vortices is suppressed and reduced, so that the fluid resistance acting on the head is small and the head speed is ensured. Can be up.

  In order to reduce the generation of vortices behind the head in the present invention, it is preferable to form a dimple row at the rear portion of the crown surface. That is, according to the present invention, in the metal wood type club head, a plurality of dimple rows are formed in parallel to each other on the striking face side portion of the crown surface and on the back side of the head, and the dimple row on the striking face side is Metal wood characterized in that a plurality of circular dimples are arranged along the front edge of the crown, and a dimple row on the back side of the head is formed by arranging a plurality of circular dimples along the rear edge of the crown. A mold club head can be provided.

  In addition, the air flow smoothly flows backward along the head surface without generating vortices and goes around the back of the head, so that a flat surface is formed on the back of the head via a step portion, and the back of the head protrudes backward. When the roof is formed, the air flow around the back surface of the head can push the flat surface of the back surface of the head forward to generate a driving force.

  Hereinafter, the present invention will be described in detail based on specific examples. 1 to 3 show a preferred embodiment of a metal wood type club head according to the present invention. In the figure, the club head 10 is manufactured by assembling a metal material, for example, a cast part or forged part such as titanium into a hollow shape and bonding them together by welding.

  The club head 10 includes a striking face 11, a crown 12, a head back surface 13, and a sole 14. The crown 13 extends from the upper end edge of the striking face 11 toward the head back surface 13, and the sole 14 extends from the lower end edge of the striking face 11. It extends toward the head back surface 13. Further, the hitting face 11 is a true spherical surface.

  Further, one side portion of the striking face 11 of the club head 10 is a toe, and the other side portion is a heel, and the heel side of the crown 12 is integrally formed with a hosel 15 having a plane streamline shape and a side face of a triangular shape. Is formed. The hosel 15 is connected with a tip portion of a shaft inserted therein, and a grip is provided at an upper end portion of the shaft.

  Further, two dimple rows 20 are formed in parallel to each other on the striking face 11 side of the crown 12, and this dimple row 20 is formed by arranging a plurality of circular dimples along the front edge of the crown 12. Yes.

  Further, three dimple rows 21 are formed in parallel to each other on the head rear surface 13 side of the crown 12, and this dimple row 21 is formed by arranging a plurality of circular dimples along the rear end edge of the crown 12. ing.

  Further, a flat surface 13A is formed at a lower portion of the head back surface 13 through a step portion, and the head back surface 13 has a roof shape protruding rearward.

  When the player holds the grip, puts the golf ball forward, addresses the square to the target, backswings the golf club, and downswings from the state toward the golf ball, the club head 10 is guided by the shaft. The golf ball moves toward the golf ball, the hitting face 11 hits the golf ball, and the golf ball flies.

  At this time, an air flow is generated around the club head 10, but since the dimple row 20 is formed at the front portion of the crown 12, the air flow smoothly flows along the crown 12 and the rear portion of the crown 12. Since the dimple row 21 is formed at the rear part of the crown 12, the air flow flows behind the club head 10 without being separated from the rear part of the crown 12.

  As a result, the turbulence of the air flow on the surface of the club head 10 is greatly suppressed or reduced, and the air resistance to the club head 10 is reduced, so that the head speed can be increased reliably.

  Further, since the flat surface 13A is formed on the head back surface 13 through the step portion, a part of the air flow reaching the back of the club head 10 goes around the flat surface 13A and pushes the flat surface 13A forward. As a result, a forward driving force is generated, and the head speed can be further improved.

1 is a perspective view showing a preferred embodiment of a metal wood type club head according to the present invention. It is a top view which shows the said embodiment. It is a side view which shows the said embodiment.

Explanation of symbols

10 Club head 11 Strike face 12 Crown 13 Head back 14 Sole 15 Hosel 20, 21 Dimple row

Claims (3)

  1. In metal wood type club head,
    The head outer surface is composed of a striking face, crown, head back and sole,
    A plurality of dimple rows are formed in parallel to each other on the striking face side of the crown surface, and each of the plurality of dimple rows is configured by arranging a plurality of circular dimples along the front edge of the crown. Metal wood type club head.
  2. In metal wood type club head,
    The head outer surface is composed of a striking face, crown, head back and sole,
    A plurality of dimple rows are formed in parallel to each other on the striking face side portion of the crown surface and on the back side of the head, and the dimple rows on the striking face side are configured by arranging a plurality of circular dimples along the front edge of the crown. The dimple row on the back side of the head is configured by arranging a plurality of circular dimples along the rear edge of the crown.
  3.   3. The metal wood type club head according to claim 1, wherein a flat surface is formed on the back surface of the head through a step portion so that the head is formed in a roof shape protruding rearward.
JP2007163774A 2007-06-21 2007-06-21 Metal wood club head Withdrawn JP2009000281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007163774A JP2009000281A (en) 2007-06-21 2007-06-21 Metal wood club head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007163774A JP2009000281A (en) 2007-06-21 2007-06-21 Metal wood club head

Publications (1)

Publication Number Publication Date
JP2009000281A true JP2009000281A (en) 2009-01-08

Family

ID=40317338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007163774A Withdrawn JP2009000281A (en) 2007-06-21 2007-06-21 Metal wood club head

Country Status (1)

Country Link
JP (1) JP2009000281A (en)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011094189A1 (en) * 2010-01-27 2011-08-04 Nike International Ltd. Golf club assembly and golf club with aerodynamic hosel
US8162775B2 (en) 2009-05-13 2012-04-24 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8366565B2 (en) 2009-05-13 2013-02-05 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8430763B2 (en) 2010-12-28 2013-04-30 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
JP2013517893A (en) * 2010-01-27 2013-05-20 ナイキ インターナショナル リミテッド Golf club assembly and golf club having aerodynamic characteristics consisting of a specific shape of the club head
US8517860B2 (en) 2010-06-01 2013-08-27 Taylor Made Golf Company, Inc. Hollow golf club head having sole stress reducing feature
US8678946B2 (en) 2011-06-14 2014-03-25 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8821312B2 (en) 2010-06-01 2014-09-02 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature with aperture
US8821309B2 (en) 2009-05-13 2014-09-02 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8827831B2 (en) 2010-06-01 2014-09-09 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature
US8870679B2 (en) 2012-05-31 2014-10-28 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8888607B2 (en) 2010-12-28 2014-11-18 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US8932149B2 (en) 2012-05-31 2015-01-13 Nike, Inc. Golf club assembly and golf club with aerodynamic features
USD731606S1 (en) 2014-06-23 2015-06-09 Taylor Made Golf Company, Inc. Iron club head
US9089749B2 (en) 2010-06-01 2015-07-28 Taylor Made Golf Company, Inc. Golf club head having a shielded stress reducing feature
USD735284S1 (en) 2014-06-23 2015-07-28 Taylor Made Golf Company, Inc. Iron club head
USD737913S1 (en) 2014-06-23 2015-09-01 Taylor Made Golf Company, Inc. Iron club head
USD737912S1 (en) 2014-06-23 2015-09-01 Taylor Made Golf Company, Inc. Iron club head
US9168431B2 (en) 2008-01-10 2015-10-27 Taylor Made Golf Company, Inc. Fairway wood golf club head
US9220953B2 (en) 2010-12-28 2015-12-29 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US9220956B2 (en) 2007-12-31 2015-12-29 Taylor Made Golf Company, Inc. Golf club
US20160166891A1 (en) * 2014-12-10 2016-06-16 Bridgestone Sports Co., Ltd. Golf club head
USD772996S1 (en) 2015-07-16 2016-11-29 Taylor Made Golf Company, Inc. Golf club head
US9707457B2 (en) 2010-12-28 2017-07-18 Taylor Made Golf Company, Inc. Golf club
US9943734B2 (en) 2004-11-08 2018-04-17 Taylor Made Golf Company, Inc. Golf club
US10065082B2 (en) 2014-07-22 2018-09-04 Taylor Made Golf Company, Inc. Golf club
US10213660B1 (en) 2017-01-13 2019-02-26 Cobra Golf Incorporated Golf club with aerodynamic features on club face
US10245481B1 (en) * 2017-12-21 2019-04-02 Acushnet Compnay Golf club head

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* Cited by examiner, † Cited by third party
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US9943734B2 (en) 2004-11-08 2018-04-17 Taylor Made Golf Company, Inc. Golf club
US9220956B2 (en) 2007-12-31 2015-12-29 Taylor Made Golf Company, Inc. Golf club
US10058747B2 (en) 2008-01-10 2018-08-28 Taylor Made Golf Company, Inc Golf club
US10335649B2 (en) 2008-01-10 2019-07-02 Taylor Made Golf Company, Inc. Golf club
US9687700B2 (en) 2008-01-10 2017-06-27 Taylor Made Golf Company, Inc. Golf club head
US9586103B2 (en) 2008-01-10 2017-03-07 Taylor Made Golf Company, Inc. Golf club head and golf club
US9168431B2 (en) 2008-01-10 2015-10-27 Taylor Made Golf Company, Inc. Fairway wood golf club head
US8485917B2 (en) 2009-05-13 2013-07-16 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US9802085B2 (en) 2009-05-13 2017-10-31 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8398505B2 (en) 2009-05-13 2013-03-19 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8366565B2 (en) 2009-05-13 2013-02-05 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8721470B2 (en) 2009-05-13 2014-05-13 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US9375617B2 (en) 2009-05-13 2016-06-28 Nike, Inc Golf club assembly and golf club with aerodynamic features
US9370696B2 (en) 2009-05-13 2016-06-21 Nike, Inc Golf club assembly and golf club with aerodynamic features
US9314677B2 (en) 2009-05-13 2016-04-19 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8758156B2 (en) 2009-05-13 2014-06-24 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8821311B2 (en) 2009-05-13 2014-09-02 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8821309B2 (en) 2009-05-13 2014-09-02 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8162775B2 (en) 2009-05-13 2012-04-24 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8702531B2 (en) 2009-05-13 2014-04-22 Nike, Inc. Golf club assembly and golf club with aerodynamic hosel
US9956459B2 (en) 2009-05-13 2018-05-01 Nike, Inc. Golf club assembly and golf club with aerodynamic features
JP2013517893A (en) * 2010-01-27 2013-05-20 ナイキ インターナショナル リミテッド Golf club assembly and golf club having aerodynamic characteristics consisting of a specific shape of the club head
WO2011094189A1 (en) * 2010-01-27 2011-08-04 Nike International Ltd. Golf club assembly and golf club with aerodynamic hosel
US9656131B2 (en) 2010-06-01 2017-05-23 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature and shaft connection system socket
US9950223B2 (en) 2010-06-01 2018-04-24 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature with aperture
US9950222B2 (en) 2010-06-01 2018-04-24 Taylor Made Golf Company, Inc. Golf club having sole stress reducing feature
US9089749B2 (en) 2010-06-01 2015-07-28 Taylor Made Golf Company, Inc. Golf club head having a shielded stress reducing feature
US10369429B2 (en) 2010-06-01 2019-08-06 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature and shaft connection system socket
US8591351B2 (en) 2010-06-01 2013-11-26 Taylor Made Golf Company, Inc. Hollow golf club head having crown stress reducing feature
US9011267B2 (en) 2010-06-01 2015-04-21 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature and shaft connection system socket
US9168428B2 (en) 2010-06-01 2015-10-27 Taylor Made Golf Company, Inc. Hollow golf club head having sole stress reducing feature
US9956460B2 (en) 2010-06-01 2018-05-01 Taylor Made Golf Company, Inc Golf club head having a stress reducing feature and shaft connection system socket
US9168434B2 (en) 2010-06-01 2015-10-27 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature with aperture
US9174101B2 (en) 2010-06-01 2015-11-03 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature
US9610482B2 (en) 2010-06-01 2017-04-04 Taylor Made Golf Company, Inc Golf club head having a stress reducing feature with aperture
US9610483B2 (en) 2010-06-01 2017-04-04 Taylor Made Golf Company, Inc Iron-type golf club head having a sole stress reducing feature
US10245485B2 (en) 2010-06-01 2019-04-02 Taylor Made Golf Company Inc. Golf club head having a stress reducing feature with aperture
US8827831B2 (en) 2010-06-01 2014-09-09 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature
US9265993B2 (en) 2010-06-01 2016-02-23 Taylor Made Golf Company, Inc Hollow golf club head having crown stress reducing feature
US8721471B2 (en) 2010-06-01 2014-05-13 Taylor Made Golf Company, Inc. Hollow golf club head having sole stress reducing feature
US8517860B2 (en) 2010-06-01 2013-08-27 Taylor Made Golf Company, Inc. Hollow golf club head having sole stress reducing feature
US10300350B2 (en) 2010-06-01 2019-05-28 Taylor Made Golf Company, Inc. Golf club having sole stress reducing feature
US9566479B2 (en) 2010-06-01 2017-02-14 Taylor Made Golf Company, Inc. Golf club head having sole stress reducing feature
US8821312B2 (en) 2010-06-01 2014-09-02 Taylor Made Golf Company, Inc. Golf club head having a stress reducing feature with aperture
US10434384B2 (en) 2010-12-28 2019-10-08 Taylor Made Golf Company, Inc. Golf club head
US9220953B2 (en) 2010-12-28 2015-12-29 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US10478679B2 (en) 2010-12-28 2019-11-19 Taylor Made Golf Company, Inc. Golf club head
US10252119B2 (en) 2010-12-28 2019-04-09 Taylor Made Golf Company, Inc. Golf club
US9707457B2 (en) 2010-12-28 2017-07-18 Taylor Made Golf Company, Inc. Golf club
US9211447B2 (en) 2010-12-28 2015-12-15 Taylor Made Golf Company, Inc. Golf club
US9186560B2 (en) 2010-12-28 2015-11-17 Taylor Made Golf Company, Inc. Golf club
US8900069B2 (en) 2010-12-28 2014-12-02 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US8888607B2 (en) 2010-12-28 2014-11-18 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US8956240B2 (en) 2010-12-28 2015-02-17 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US9700763B2 (en) 2010-12-28 2017-07-11 Taylor Made Golf Company, Inc. Golf club
US8430763B2 (en) 2010-12-28 2013-04-30 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US9700769B2 (en) 2010-12-28 2017-07-11 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US8753222B2 (en) 2010-12-28 2014-06-17 Taylor Made Golf Company, Inc. Fairway wood center of gravity projection
US8678946B2 (en) 2011-06-14 2014-03-25 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US9770634B2 (en) 2012-05-31 2017-09-26 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US8870679B2 (en) 2012-05-31 2014-10-28 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US9272194B2 (en) 2012-05-31 2016-03-01 Nike, Inc Golf club assembly and golf club with aerodynamic features
US8932149B2 (en) 2012-05-31 2015-01-13 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US9526954B2 (en) 2012-05-31 2016-12-27 Nike, Inc. Golf club assembly and golf club with aerodynamic features
US10195500B2 (en) 2012-05-31 2019-02-05 Nike, Inc. Golf club assembly and golf club with aerodynamic features
USD737913S1 (en) 2014-06-23 2015-09-01 Taylor Made Golf Company, Inc. Iron club head
USD735284S1 (en) 2014-06-23 2015-07-28 Taylor Made Golf Company, Inc. Iron club head
USD731606S1 (en) 2014-06-23 2015-06-09 Taylor Made Golf Company, Inc. Iron club head
USD737912S1 (en) 2014-06-23 2015-09-01 Taylor Made Golf Company, Inc. Iron club head
US10065082B2 (en) 2014-07-22 2018-09-04 Taylor Made Golf Company, Inc. Golf club
JP2016107022A (en) * 2014-12-10 2016-06-20 ブリヂストンスポーツ株式会社 Golf club head
US20160166891A1 (en) * 2014-12-10 2016-06-16 Bridgestone Sports Co., Ltd. Golf club head
USD772996S1 (en) 2015-07-16 2016-11-29 Taylor Made Golf Company, Inc. Golf club head
US10213660B1 (en) 2017-01-13 2019-02-26 Cobra Golf Incorporated Golf club with aerodynamic features on club face
US10245481B1 (en) * 2017-12-21 2019-04-02 Acushnet Compnay Golf club head

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