US20170165529A1 - Two-piece golf ball - Google Patents

Two-piece golf ball Download PDF

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Publication number
US20170165529A1
US20170165529A1 US15/292,559 US201615292559A US2017165529A1 US 20170165529 A1 US20170165529 A1 US 20170165529A1 US 201615292559 A US201615292559 A US 201615292559A US 2017165529 A1 US2017165529 A1 US 2017165529A1
Authority
US
United States
Prior art keywords
golf ball
equal
core
less
preferably equal
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
US15/292,559
Other languages
English (en)
Inventor
Hironori Takihara
Takahiro Sajima
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.)
Sumitomo Rubber Industries Ltd
Original Assignee
Dunlop Sports 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
Application filed by Dunlop Sports Co Ltd filed Critical Dunlop Sports Co Ltd
Assigned to DUNLOP SPORTS CO. LTD. reassignment DUNLOP SPORTS CO. LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SAJIMA, TAKAHIRO, TAKIHARA, HIRONORI
Publication of US20170165529A1 publication Critical patent/US20170165529A1/en
Assigned to SUMITOMO RUBBER INDUSTRIES, LTD. reassignment SUMITOMO RUBBER INDUSTRIES, LTD. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: DUNLOP SPORTS CO. LTD.
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/007—Characteristics of the ball as a whole
    • A63B37/0077—Physical properties
    • A63B37/0088—Frequency
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/0023—Covers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/0023—Covers
    • A63B37/0029—Physical properties
    • A63B37/0031—Hardness
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/0023—Covers
    • A63B37/0029—Physical properties
    • A63B37/0033—Thickness
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/005—Cores
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/005—Cores
    • A63B37/0051—Materials other than polybutadienes; Constructional details
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/005—Cores
    • A63B37/006—Physical properties
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/005—Cores
    • A63B37/006—Physical properties
    • A63B37/0061—Coefficient of restitution
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/005—Cores
    • A63B37/006—Physical properties
    • A63B37/0062—Hardness
    • A63B37/0063—Hardness gradient
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/005—Cores
    • A63B37/006—Physical properties
    • A63B37/0065—Deflection or compression
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/007—Characteristics of the ball as a whole
    • A63B37/0072—Characteristics of the ball as a whole with a specified number of layers
    • A63B37/0074—Two piece balls, i.e. cover and core
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/007—Characteristics of the ball as a whole
    • A63B37/0077—Physical properties
    • A63B37/008—Diameter
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/007—Characteristics of the ball as a whole
    • A63B37/0077—Physical properties
    • A63B37/0083—Weight; Mass
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/007—Characteristics of the ball as a whole
    • A63B37/0077—Physical properties
    • A63B37/0087—Deflection or compression
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/007—Characteristics of the ball as a whole
    • A63B37/0077—Physical properties
    • A63B37/009—Coefficient of lift
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/007—Characteristics of the ball as a whole
    • A63B37/0077—Physical properties
    • A63B37/0094—Rebound resilience
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0003—Golf balls
    • A63B37/007—Characteristics of the ball as a whole
    • A63B37/0077—Physical properties
    • A63B37/0096—Spin rate
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/02—Special cores
    • A63B37/06—Elastic cores
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/32—Golf

Definitions

  • FIG. 1 is a cross-sectional view of a golf ball according to one embodiment of the present invention.
  • FIG. 2 is a conceptual diagram showing a device for measuring a natural frequency of the golf ball in FIG. 1 ;
  • styrene block-containing thermoplastic elastomers examples include styrene-butadiene-styrene block copolymers (SBS), styrene-isoprene-styrene block copolymers (SIS), styrene-isoprene-butadiene-styrene block copolymers (SIBS), hydrogenated SBS, hydrogenated SIS, and hydrogenated SIBS.
  • hydrogenated SBS include styrene-ethylene-butylene-styrene block copolymers (SEBS).
  • hydrogenated SIS examples include styrene-ethylene-propylene-styrene block copolymers (SEPS).
  • SIBS styrene-ethylene-ethylene-propylene-styrene block copolymers
  • polymer alloys include trade names “RABALON T3221C”, “RABALON T3339C”, “RABALON SJ4400N”, “RABALON SJ5400N”, “RABALON SJ6400N”, “RABALON SJ7400N”, “RABALON SJ8400N”, “RABALON SJ9400N”, and “RABALON SR04”, manufactured by Mitsubishi Chemical Corporation.
  • styrene block-containing thermoplastic elastomers include trade name “Epofriend A1010” manufactured by Daicel Chemical Industries, Ltd., and trade name “SEPTON HG-252” manufactured by Kuraray Co., Ltd.
  • the resin composition of the cover 6 may include a coloring agent, a filler, a dispersant, an antioxidant, an ultraviolet absorber, a light stabilizer, a fluorescent material, a fluorescent brightener, and the like in an adequate amount.
  • a typical coloring agent is titanium dioxide.
  • FIG. 3 is a graph showing a relationship between the secondary natural frequency NF(2)1 of the core 4 and the secondary natural frequency NF(2)2 of the golf ball 2 .
  • the horizontal axis indicates the secondary natural frequency NF(2)1 of the core
  • the vertical axis indicates the secondary natural frequency NF(2)2 of the golf ball.
  • a straight line indicated by reference sign L1 in this graph is represented by the following mathematical formula.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
US15/292,559 2015-12-14 2016-10-13 Two-piece golf ball Abandoned US20170165529A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-242909 2015-12-14
JP2015242909A JP6631224B2 (ja) 2015-12-14 2015-12-14 ツーピースゴルフボール

Publications (1)

Publication Number Publication Date
US20170165529A1 true US20170165529A1 (en) 2017-06-15

Family

ID=57136760

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/292,559 Abandoned US20170165529A1 (en) 2015-12-14 2016-10-13 Two-piece golf ball

Country Status (5)

Country Link
US (1) US20170165529A1 (fr)
EP (1) EP3181199B1 (fr)
JP (1) JP6631224B2 (fr)
KR (1) KR102602817B1 (fr)
CN (1) CN106938134B (fr)

Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6123629A (en) * 1997-09-02 2000-09-26 Sumitomo Rubber Industries Limited Method of making a golf ball with improved flight distance and shot feeling
US20020045500A1 (en) * 2000-08-30 2002-04-18 Kazuhisa Fushihara Light weight golf ball
US20020142863A1 (en) * 1999-04-01 2002-10-03 Bridgestone Sports Co., Ltd. Solid golf ball
US20030064830A1 (en) * 2000-07-17 2003-04-03 Sumitomo Rubber Industries, Ltd. Golf ball
US6589124B1 (en) * 1997-10-30 2003-07-08 Sumitomo Rubber Industries, Ltd. Hollow golf ball
US20030228936A1 (en) * 2002-06-11 2003-12-11 Keiji Moriyama Three-piece golf ball
US6743124B2 (en) * 2001-03-08 2004-06-01 Sumitomo Rubber Industries, Ltd. Golf ball
US20080045360A1 (en) * 2006-08-16 2008-02-21 Sri Sports Limited Golf ball
US20100167846A1 (en) * 2008-12-29 2010-07-01 Tsutomu Hirau Golf ball
US7838584B2 (en) * 2006-08-11 2010-11-23 Bridgestone Sports Co., Ltd. Golf ball
US20110250991A1 (en) * 2010-04-07 2011-10-13 Kazuhiko Isogawa Golf ball
US20120010024A1 (en) * 2010-07-08 2012-01-12 Hirotaka Nakamura Golf ball
US20130017905A1 (en) * 2011-07-11 2013-01-17 Shindo Ayaka Golf ball
US20130053181A1 (en) * 2011-08-24 2013-02-28 Dunlop Sports Co., Ltd. Golf ball
US20130123044A1 (en) * 2011-11-15 2013-05-16 Dunlop Sports Co., Ltd. Golf ball
US20130172111A1 (en) * 2011-12-28 2013-07-04 Dunlop Sports Co., Ltd. Golf ball
US20130244810A1 (en) * 2012-03-19 2013-09-19 Dunlop Sports Co., Ltd. Golf ball
US20130310196A1 (en) * 2012-05-17 2013-11-21 Dunlop Sports Co., Ltd. Golf ball
US20130324312A1 (en) * 2012-06-01 2013-12-05 Dunlop Sports Co., Ltd. Golf ball and method for manufacturing the same
US20140100058A1 (en) * 2012-10-04 2014-04-10 Dunlop Sprorts Co., Ltd. Golf ball
US20140295994A1 (en) * 2013-03-29 2014-10-02 Dunlop Sports Co., Ltd. Golf ball
US20140357407A1 (en) * 2013-05-31 2014-12-04 Dunlop Sports Co., Ltd. Golf ball
US20140357406A1 (en) * 2013-05-31 2014-12-04 Dunlop Sports Co., Ltd. Golf ball
US20140357408A1 (en) * 2013-05-31 2014-12-04 Dunlop Sports Co., Ltd. Golf ball and method for manufacturing the same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US123629A (en) 1872-02-13 Improvement in steering apparatus for vessels
US5971870A (en) 1997-11-21 1999-10-26 Sullivan Michael J Golf ball with soft core
US6325730B1 (en) * 1992-04-24 2001-12-04 Spalding Sports Worldwide, Inc. Golf ball with soft core
JPH11333025A (ja) * 1998-05-25 1999-12-07 Sumitomo Rubber Ind Ltd 糸巻きゴルフボール
JP2000051400A (ja) * 1998-06-02 2000-02-22 Sumitomo Rubber Ind Ltd 糸巻きゴルフボ―ル
JP3485488B2 (ja) * 1999-02-24 2004-01-13 住友ゴム工業株式会社 印刷用ブランケット
JP2002126129A (ja) * 2000-08-15 2002-05-08 Bridgestone Sports Co Ltd ツーピースゴルフボール
JP2003070936A (ja) * 2001-06-21 2003-03-11 Bridgestone Sports Co Ltd ツーピースソリッドゴルフボール
JP2005261754A (ja) * 2004-03-19 2005-09-29 Sri Sports Ltd ゴルフボール
JP5538402B2 (ja) * 2009-08-27 2014-07-02 美津濃株式会社 ゴルフボール
JP5601955B2 (ja) * 2010-10-07 2014-10-08 ダンロップスポーツ株式会社 ゴルフボール
US9006344B2 (en) * 2012-07-02 2015-04-14 Acushnet Company Golf balls having cores made of polybutadiene rubber blends
US20140045622A1 (en) * 2012-08-13 2014-02-13 Nike, Inc. Golf Ball With Two Soft Layers And One Hard Layer
JP6265660B2 (ja) * 2013-09-02 2018-01-24 ダンロップスポーツ株式会社 ゴルフボール

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6123629A (en) * 1997-09-02 2000-09-26 Sumitomo Rubber Industries Limited Method of making a golf ball with improved flight distance and shot feeling
US6589124B1 (en) * 1997-10-30 2003-07-08 Sumitomo Rubber Industries, Ltd. Hollow golf ball
US20020142863A1 (en) * 1999-04-01 2002-10-03 Bridgestone Sports Co., Ltd. Solid golf ball
US20030064830A1 (en) * 2000-07-17 2003-04-03 Sumitomo Rubber Industries, Ltd. Golf ball
US20020045500A1 (en) * 2000-08-30 2002-04-18 Kazuhisa Fushihara Light weight golf ball
US6743124B2 (en) * 2001-03-08 2004-06-01 Sumitomo Rubber Industries, Ltd. Golf ball
US20030228936A1 (en) * 2002-06-11 2003-12-11 Keiji Moriyama Three-piece golf ball
US7838584B2 (en) * 2006-08-11 2010-11-23 Bridgestone Sports Co., Ltd. Golf ball
US20080045360A1 (en) * 2006-08-16 2008-02-21 Sri Sports Limited Golf ball
US20100167846A1 (en) * 2008-12-29 2010-07-01 Tsutomu Hirau Golf ball
US20110250991A1 (en) * 2010-04-07 2011-10-13 Kazuhiko Isogawa Golf ball
US20120010024A1 (en) * 2010-07-08 2012-01-12 Hirotaka Nakamura Golf ball
US20130017905A1 (en) * 2011-07-11 2013-01-17 Shindo Ayaka Golf ball
US20130053181A1 (en) * 2011-08-24 2013-02-28 Dunlop Sports Co., Ltd. Golf ball
US20130123044A1 (en) * 2011-11-15 2013-05-16 Dunlop Sports Co., Ltd. Golf ball
US20130172111A1 (en) * 2011-12-28 2013-07-04 Dunlop Sports Co., Ltd. Golf ball
US20130244810A1 (en) * 2012-03-19 2013-09-19 Dunlop Sports Co., Ltd. Golf ball
US20130310196A1 (en) * 2012-05-17 2013-11-21 Dunlop Sports Co., Ltd. Golf ball
US20130324312A1 (en) * 2012-06-01 2013-12-05 Dunlop Sports Co., Ltd. Golf ball and method for manufacturing the same
US20140100058A1 (en) * 2012-10-04 2014-04-10 Dunlop Sprorts Co., Ltd. Golf ball
US20140295994A1 (en) * 2013-03-29 2014-10-02 Dunlop Sports Co., Ltd. Golf ball
US20140357407A1 (en) * 2013-05-31 2014-12-04 Dunlop Sports Co., Ltd. Golf ball
US20140357406A1 (en) * 2013-05-31 2014-12-04 Dunlop Sports Co., Ltd. Golf ball
US20140357408A1 (en) * 2013-05-31 2014-12-04 Dunlop Sports Co., Ltd. Golf ball and method for manufacturing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DuPont, Hardness Conversion, uploaded 7/11/17, DuPont, 1 page *

Also Published As

Publication number Publication date
KR20170070798A (ko) 2017-06-22
EP3181199A3 (fr) 2017-07-19
JP2017108762A (ja) 2017-06-22
KR102602817B1 (ko) 2023-11-15
CN106938134A (zh) 2017-07-11
EP3181199A2 (fr) 2017-06-21
EP3181199B1 (fr) 2018-12-12
JP6631224B2 (ja) 2020-01-15
CN106938134B (zh) 2020-05-05

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