US20090270199A1 - Golf club head - Google Patents

Golf club head Download PDF

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Publication number
US20090270199A1
US20090270199A1 US12108528 US10852808A US2009270199A1 US 20090270199 A1 US20090270199 A1 US 20090270199A1 US 12108528 US12108528 US 12108528 US 10852808 A US10852808 A US 10852808A US 2009270199 A1 US2009270199 A1 US 2009270199A1
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US
Grant status
Application
Patent type
Prior art keywords
piece
side
front
rear
intermediate
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.)
Abandoned
Application number
US12108528
Inventor
Yung-Hsiung Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Well Jet International Co Ltd
Original Assignee
Well Jet International Co Ltd
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

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • A63B53/0466Heads wood-type
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/02Ballast means for adjusting the centre of mass
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • A63B2053/0416Heads with an impact surface provided by a face insert
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • A63B2053/0433Heads with special sole configurations
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • A63B2053/0433Heads with special sole configurations
    • A63B2053/0437Heads with special sole configurations with special crown configurations
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • A63B2053/0491Heads with added weights, e.g. changeable, replaceable
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00Characteristics of used materials
    • A63B2209/02Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres

Abstract

A golf club head has a three-piece construction, including a front piece, an intermediate piece and a rear piece. The front and rear pieces are made of metal, while the intermediate piece is made of fiber-reinforced plastic, composite material or metal. The intermediate piece is jointed to the front and rear pieces by means of adhesives or welding. Bolts are provided in a lower portion of the rear piece to threadingly engage the front piece to securely fix all the pieces together to form the golf club head, which has a lowered gravity center and enhanced striking stability.

Description

    BACKGROUND OF THE INVENTION
  • (a) Technical Field of the Invention
  • The present invention relates to a golf club head, and in particular to a golf club head having lowered gravity center to enhance striking stability and performance of playing golf.
  • (b) Description of the Prior Art
  • Golf has been a very popular sports game for social relationship between people can be improved during the driving from one hole to another hole in the golf field. To have an excellent performance of playing golf, practice is the most important way. However, good and appropriate golf clubs also play an important role in playing the game. For different striking, different clubs may be selected. For example, for long distance driving, a wooden club is used. For a currently available wooden club, a club head is often made of metals or composite materials. FIG. 1 of the attached drawings shows a metal club head, designated at 1. The manufacturing of the metal club head 1 is first forming respectively a body 11 that has a top opening and a lid 12. The lid 12 is then mounted to the body 11 to close the top opening by welding. During the welding process, the lid 12 must be first retained to the body 11 by spot welding, and then a hard welding process can be carried out. This complicates the manufacturing process and often suffers undesired displacement of the lids 12, which leads to flaw products. Further to lower the gravity center of the club head 1, adjustment of weight must be carried out on the bottom or other portions of the club head 1. Thus, it is desired to provide a golf club head that can be manufactured with a simplified process, while effectively lowering the gravity center thereof at the same time.
  • SUMMARY OF THE INVENTION
  • The primary purpose of the present invention is to provide a golf club head, which, without adversely affecting the structural strength of a golf club head, enhances the efficiency of manufacturing of the golf club head, shortening the manufacturing time, and also lowers the gravity center of the golf club head to enhance striking stability and performance of golf playing.
  • To achieve the above objective, in accordance with the present invention, a golf club head is provided, comprising a three-piece construction, of which a front piece and a rear piece are made of metal, while an intermediate piece is made of fiber-reinforced plastic, composite material or metal. The intermediate piece is jointed to the front and rear pieces by means of adhesives or welding. Bolts are provided in a lower portion of the rear piece to threadingly engage the front piece to securely fix all the pieces together to form the golf club head, which has a lowered gravity center and enhanced striking stability.
  • The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
  • Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an exploded view of a conventional golf club head;
  • FIG. 2 is an exploded view of a golf club head constructed in accordance with an embodiment of the present invention;
  • FIG. 3 is a top view of FIG. 2;
  • FIG. 4 is an exploded view of a golf club head constructed in accordance with another embodiment of the present invention; and
  • FIG. 5 is a top view of FIG. 4.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
  • With reference to the drawings and in particular to FIGS. 2 and 3, a golf club head constructed in accordance with the present invention comprises a front piece 2, an intermediate piece 3, and a rear piece 4, which are respectively shaped or molded and are combined together to form a golf club head. The front piece 2 and the rear piece 4 are made of metal, while the intermediate piece 3 can be made of a composite material, such as fiber-reinforced plastics (FRP), or metal. The front piece 2 and the rear piece 4 each have one side jointed to the intermediate piece 3. The jointing side of each of the front and rear pieces 2, 4 forms a circumferential step-like recess 21, 41 for fitting into the opposite sides of the intermediate piece 3 and fixing thereto by means of for example adhesives or welding. In a lower portion of the front piece 2, two internally-threaded fastening members 22 are formed on opposite side portions thereof. The rear piece 4 forms projections in which bores or through holes 42 are defined to correspond to the internally-threaded fastening members 22. When the front, intermediate, and rear pieces 2, 3, 4 are fixed together, bolts 31 are further extended through the holes 42 of the rear piece 4 to engage the internally-threaded fastening members 22 of the front piece 2 to further secure the pieces 2, 3, 4 together and also to lower the overall gravity center of the golf club head due to the weights of the bolts 31. Since the front piece 2 is made of metal, a striking face can be directly formed on an end or side face of the front piece, or alternatively, a striking face formed of a plate of different material can be mounted to the front piece 2.
  • In a preferred embodiment of the present invention, the golf club head of the present invention is of a three-piece structure with front and rear pieces being made of metal and intermediate piece of composite material, which are jointed together by means of adhesives and further secured by bolts. In this way, as compared to the conventional technology of simply welding, the manufacturing process has reduced steps and the manufacturing time is shortened. Further, both application of adhesives and tightening of bolts can be easily done by any operator who is not an experienced or skilled operator. The flaw rate of product can be effectively lowered to further reduce the manufacturing costs and enhance market competitively. Further, arranging the bolts 31 in the lower portion to enhance the fixing or securing force can also realize lowering of the overall gravity center of the golf club head, which leads to stability of ball hitting and enhance the performance of playing golf.
  • Referring now to FIGS. 4 and 5, another embodiment of the present invention is illustrated. In accordance with the another embodiment of the present invention, a golf club head is made up of three pieces, including a left-side piece 5, an intermediate piece 6, and a right-side piece 7, which are respectively shaped or molded. The left-side piece 5 and the right-side piece 7 are made of metal, while the intermediate piece 6 can be made of a composite material, such as fiber-reinforced plastics (FRP), or metal. The left-side piece 5 and the right-side piece 7 each have one side jointed to the intermediate piece 6. The jointing side of each of the left-side piece 5 and right-side piece 7 forms a circumferential step-like recess 51, 71 for fitting into the opposite sides of the intermediate piece 6 and fixing thereto by means of for example adhesives or welding. In a lower portion of the left-side piece 5, two internally-threaded fastening members 52 are formed on opposite side portions thereof. The right-side piece 7 forms projections in which bores or through holes 72 are defined to correspond to the internally-threaded fastening members 52. When the left-side, intermediate, and right-side pieces 5, 6, 7 are fixed together, bolts 61 are extended through the holes 72 of the right-side piece 7 to engage the internally-threaded fastening members 52 of the left-side piece 5 to more securely fix the pieces 5, 6, 7 together. Further, a striking plate 8 is provided to a front side of the combined left-side, intermediate, and the right-side pieces.
  • The manufacturing process of the golf club head, as compared to the conventional technology of simply welding, can be carried out with reduced steps and the manufacturing time is shortened. Further, both application of adhesives and tightening of bolts can be easily done by any operator who is not an experienced or skilled operator. The flaw rate of product can be effectively lowered to further reduce the manufacturing costs and enhance market competitively. Further, using the bolts 61 to enhance the fixing or securing force can also lower the overall gravity center of the golf club head, which leads to stability of ball hitting and enhances the performance of playing golf.
  • It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
  • While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.

Claims (2)

  1. 1. A golf club head comprising a front piece, an intermediate piece, and a rear piece, which are respectively shaped and are combined together to form the golf club head, wherein the front piece and the rear piece are made of metal, while the intermediate piece is made of a material selected from a group consisting of composite material, fiber-reinforced plastics, and metal, the front piece and the rear piece each having a jointing side jointed to the intermediate piece, each jointing side of the front and rear pieces forming a circumferential recess for fitting to opposite sides of the intermediate piece and fixing thereto by means of adhesives or welding, a lower portion of the front piece forming two internally-threaded fastening members on opposite side portions thereof, the rear piece forming through holes corresponding to the internally-threaded fastening members, whereby when the front, intermediate, and rear pieces are fixed together, bolts are further extended through the holes of the rear piece to engage the internally-threaded fastening members of the front piece.
  2. 2. A golf club head comprising a left-side piece, an intermediate piece, and a right-side piece, which are respectively shaped and are combined together to form the golf club head, wherein the left-side piece and the right-side piece are made of metal, while the intermediate piece is made of a material selected from a group consisting of composite material, fiber-reinforced plastics, and metal, the left-side piece and the right-side piece each having a jointing side jointed to the intermediate piece, each jointing side of the front and rear pieces forming a circumferential recess for fitting to opposite sides of the intermediate piece and fixing thereto by means of adhesives or welding, a lower portion of the left-side piece forming two internally-threaded fastening members on opposite side portions thereof, the right-side piece forming through holes corresponding to the internally-threaded fastening members, whereby when the left-side, intermediate, and right-side pieces are fixed together to form a combined body, bolts are further extended through the holes of the rear piece to engage the internally-threaded fastening members of the front piece, a metal striking plate being further mounted to a front side of the combined body.
US12108528 2008-04-24 2008-04-24 Golf club head Abandoned US20090270199A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12108528 US20090270199A1 (en) 2008-04-24 2008-04-24 Golf club head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12108528 US20090270199A1 (en) 2008-04-24 2008-04-24 Golf club head

Publications (1)

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US20090270199A1 true true US20090270199A1 (en) 2009-10-29

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US12108528 Abandoned US20090270199A1 (en) 2008-04-24 2008-04-24 Golf club head

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090221380A1 (en) * 2006-11-27 2009-09-03 Breier Joshua G Golf club having removable sole weight using custom and interchangeable panels
US20100041494A1 (en) * 2008-08-15 2010-02-18 Nike, Inc. Golf club head and system
US20100041490A1 (en) * 2008-08-15 2010-02-18 Nike, Inc. Golf club head and system
US20100304888A1 (en) * 2009-05-27 2010-12-02 Tomoya Hirano Golf club head
US20110111885A1 (en) * 2009-11-11 2011-05-12 Golden Charles E Golf club head with replaceable face
US20110294589A1 (en) * 2010-05-28 2011-12-01 Nike, Inc. GOLF CLUB HEAD OR OTHER BALL STRIKING DEVICE HAVING REMOVABLE or INTERCHANGEABLE BODY MEMBER
US20120071258A1 (en) * 2010-09-17 2012-03-22 Sri Sports Limited Golf club
US20170246518A1 (en) * 2012-06-08 2017-08-31 Callaway Golf Company Golf Club Head With Center of Gravity Adjustability

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421577A (en) * 1993-04-15 1995-06-06 Kobayashi; Kenji Metallic golf clubhead
US5720674A (en) * 1996-04-30 1998-02-24 Taylor Made Golf Co. Golf club head
US6332848B1 (en) * 1999-01-28 2001-12-25 Cobra Golf Incorporated Metal wood golf club head
US6471604B2 (en) * 1999-11-01 2002-10-29 Callaway Golf Company Multiple material golf head
US6565452B2 (en) * 1999-11-01 2003-05-20 Callaway Golf Company Multiple material golf club head with face insert
US6648773B1 (en) * 2002-07-12 2003-11-18 Callaway Golf Company Golf club head with metal striking plate insert
US6860824B2 (en) * 2002-07-12 2005-03-01 Callaway Golf Company Golf club head with metal striking plate insert
US6875129B2 (en) * 2003-06-04 2005-04-05 Callaway Golf Company Golf club head
US7070517B2 (en) * 2003-05-27 2006-07-04 Callaway Golf Company Golf club head (Corporate Docket PU2150)
US7156750B2 (en) * 2003-01-29 2007-01-02 Bridgestone Sports Co., Ltd. Golf club head
US7258631B2 (en) * 2004-06-25 2007-08-21 Callaway Golf Company Golf club head
US7347796B2 (en) * 2004-06-09 2008-03-25 K.K. Endo Seisakusho Golf club
US7410428B1 (en) * 2007-03-09 2008-08-12 Callaway Golf Company Golf club head with high moment of inertia
US7448960B2 (en) * 2004-10-07 2008-11-11 Callaway Golf Company Golf club head with variable face thickness
US7549935B2 (en) * 2005-01-03 2009-06-23 Callaway Golf Company Golf club head

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5421577A (en) * 1993-04-15 1995-06-06 Kobayashi; Kenji Metallic golf clubhead
US5720674A (en) * 1996-04-30 1998-02-24 Taylor Made Golf Co. Golf club head
US6217461B1 (en) * 1996-04-30 2001-04-17 Taylor Made Golf Company, Inc. Golf club head
US6332848B1 (en) * 1999-01-28 2001-12-25 Cobra Golf Incorporated Metal wood golf club head
US6471604B2 (en) * 1999-11-01 2002-10-29 Callaway Golf Company Multiple material golf head
US6565452B2 (en) * 1999-11-01 2003-05-20 Callaway Golf Company Multiple material golf club head with face insert
US6648773B1 (en) * 2002-07-12 2003-11-18 Callaway Golf Company Golf club head with metal striking plate insert
US6669578B1 (en) * 2002-07-12 2003-12-30 Callaway Golf Company Golf club head with metal striking plate insert
US6860824B2 (en) * 2002-07-12 2005-03-01 Callaway Golf Company Golf club head with metal striking plate insert
US7156750B2 (en) * 2003-01-29 2007-01-02 Bridgestone Sports Co., Ltd. Golf club head
US7070517B2 (en) * 2003-05-27 2006-07-04 Callaway Golf Company Golf club head (Corporate Docket PU2150)
US6875129B2 (en) * 2003-06-04 2005-04-05 Callaway Golf Company Golf club head
US7347796B2 (en) * 2004-06-09 2008-03-25 K.K. Endo Seisakusho Golf club
US7314418B2 (en) * 2004-06-25 2008-01-01 Callaway Golf Company Golf club head
US7503854B2 (en) * 2004-06-25 2009-03-17 Callaway Golf Company Golf club head
US7258631B2 (en) * 2004-06-25 2007-08-21 Callaway Golf Company Golf club head
US7448960B2 (en) * 2004-10-07 2008-11-11 Callaway Golf Company Golf club head with variable face thickness
US7549935B2 (en) * 2005-01-03 2009-06-23 Callaway Golf Company Golf club head
US7413520B1 (en) * 2007-03-09 2008-08-19 Callaway Golf Company Golf club head with high moment of inertia
US7419442B1 (en) * 2007-03-09 2008-09-02 Callaway Golf Company Golf club head with high moment of inertia
US7431666B2 (en) * 2007-03-09 2008-10-07 Callaway Golf Company Golf club head with high moment of inertia
US7431667B2 (en) * 2007-03-09 2008-10-07 Callaway Golf Company Golf club head with high moment of inertia
US7410428B1 (en) * 2007-03-09 2008-08-12 Callaway Golf Company Golf club head with high moment of inertia
US7413519B1 (en) * 2007-03-09 2008-08-19 Callaway Golf Company Golf club head with high moment of inertia

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090221380A1 (en) * 2006-11-27 2009-09-03 Breier Joshua G Golf club having removable sole weight using custom and interchangeable panels
US8105175B2 (en) * 2006-11-27 2012-01-31 Acushnet Company Golf club having removable sole weight using custom and interchangeable panels
US20100041494A1 (en) * 2008-08-15 2010-02-18 Nike, Inc. Golf club head and system
US20100173723A1 (en) * 2008-08-15 2010-07-08 Nike, Inc. Golf club head and system
US8876623B2 (en) 2008-08-15 2014-11-04 Nike, Inc. Golf club head and system
US8585514B2 (en) * 2008-08-15 2013-11-19 Nike, Inc. Golf club head and system
US8062151B2 (en) * 2008-08-15 2011-11-22 Nike, Inc. Golf club head and system
US8162776B2 (en) * 2008-08-15 2012-04-24 Nike, Inc. Golf club head and system
US20100041490A1 (en) * 2008-08-15 2010-02-18 Nike, Inc. Golf club head and system
US20120034999A1 (en) * 2008-08-15 2012-02-09 Nike, Inc. Golf club head and system
US8133128B2 (en) 2008-08-15 2012-03-13 Nike, Inc. Golf club head and system
US20100304888A1 (en) * 2009-05-27 2010-12-02 Tomoya Hirano Golf club head
US8435137B2 (en) * 2009-05-27 2013-05-07 Sri Sports Limited Golf club head
US8376873B2 (en) * 2009-11-11 2013-02-19 Acushnet Company Golf club head with replaceable face
US20110111885A1 (en) * 2009-11-11 2011-05-12 Golden Charles E Golf club head with replaceable face
US20110294589A1 (en) * 2010-05-28 2011-12-01 Nike, Inc. GOLF CLUB HEAD OR OTHER BALL STRIKING DEVICE HAVING REMOVABLE or INTERCHANGEABLE BODY MEMBER
US8435135B2 (en) * 2010-05-28 2013-05-07 Nike, Inc. Golf club head or other ball striking device having removable or interchangeable body member
US20120071258A1 (en) * 2010-09-17 2012-03-22 Sri Sports Limited Golf club
US20170128788A1 (en) * 2010-09-17 2017-05-11 Dunlop Sports Co., Ltd. Golf club
US20170246518A1 (en) * 2012-06-08 2017-08-31 Callaway Golf Company Golf Club Head With Center of Gravity Adjustability
US10004958B2 (en) * 2012-06-08 2018-06-26 Callaway Golf Company Golf club head with center of gravity adjustability

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WELL JET INTERNATIONAL CO., LTD.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHEN, YUNG-HSIUNG;REEL/FRAME:020848/0014

Effective date: 20080423