EP0342287A1 - Aerodynamischer Ball - Google Patents

Aerodynamischer Ball Download PDF

Info

Publication number
EP0342287A1
EP0342287A1 EP88304580A EP88304580A EP0342287A1 EP 0342287 A1 EP0342287 A1 EP 0342287A1 EP 88304580 A EP88304580 A EP 88304580A EP 88304580 A EP88304580 A EP 88304580A EP 0342287 A1 EP0342287 A1 EP 0342287A1
Authority
EP
European Patent Office
Prior art keywords
dimples
ball according
area
ball
dimple
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Withdrawn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
EP88304580A
Other languages
English (en)
French (fr)
Inventor
Johann Yip Loong Foo
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.)
DUNLOP MALAYSIAN INDUSTRIES BERHAD
Original Assignee
DUNLOP MALAYSIAN INDUSTRIES BERHAD
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 MALAYSIAN INDUSTRIES BERHAD filed Critical DUNLOP MALAYSIAN INDUSTRIES BERHAD
Priority to EP88304580A priority Critical patent/EP0342287A1/de
Publication of EP0342287A1 publication Critical patent/EP0342287A1/de
Withdrawn legal-status Critical Current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
    • A63B37/0004—Surface depressions or protrusions
    • 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
    • A63B37/0004—Surface depressions or protrusions
    • A63B37/0006—Arrangement or layout of dimples
    • A63B37/00065—Arrangement or layout of dimples located around the pole or the equator
    • 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
    • A63B37/0004—Surface depressions or protrusions
    • A63B37/0018—Specified number of dimples
    • 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
    • A63B37/0004—Surface depressions or protrusions
    • A63B37/0019—Specified dimple depth
    • 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
    • A63B37/0004—Surface depressions or protrusions
    • A63B37/002—Specified dimple 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
    • A63B37/0004—Surface depressions or protrusions
    • A63B37/0021—Occupation ratio, i.e. percentage surface occupied by dimples

Definitions

  • This invention relates to an aerodynamic spherical ball and in particular to a golf ball having a novel dimple configuration.
  • a spherical ball having a plurality of dimples on the surface thereof characterised in that the surface is divided into six identical areas by means of six equators, each area accommodates an identical number of dimples and each dimple is wholly contained within a single area.
  • the six equators further divide each area into four identical sub-areas, and each sub-area accommodates an identical number of dimples.
  • each dimple is wholly contained within a sub-area.
  • the dimples form a pattern which is repeated four times within a single area, the pattern being substantially triangular.
  • each area accommodates 76 dimples; it is preferred that these dimples should be made up from 68 large dimples and 8 small dimples.
  • the pattern comprises a triangle formed by 13 large dimples, 4 large dimples within the triangle and 1 small dimple at each of the apexes at either end of the longest side of the triangle.
  • the four large dimples within the triangle are positioned such that three of the dimples form a line parallel to the longest side of the triangle and the fourth dimple is equidistant from the ends of the line.
  • the large dimples preferably have a diameter of between 3mm and 4mm, most preferably 3.4mm, and the small dimples preferably have a diameter of between 1.5mm and 2.5mm, most preferably 2.0mm.
  • each dimple has a maximum depth which is approximately 5.4% of its diameter.
  • the surface area of the ball covered by dimples is maximised.
  • the joint between the hemispheres is one of the equators.
  • the ball is a golf ball.
  • the surface 3 of a golf ball 1 is divided into six identical areas 5a-5f by means of six equators 7a-7f.
  • Each of the areas 5a-5f is identical in both shape and size, and is divided into four identical sub-areas 9a-9d.
  • Each of the sub-areas 9a-9d has 19 dimples arranged in a predetermined pattern, as shown in Fig. 2.
  • the nineteen dimples are made up of seventeen large dimples 11 and two small dimples 13.
  • the large dimples 11 each have a diameter of substantially 3.43mm and the two small dimples 13 each have a diameter of substantially 2.03mm. All nineteen dimples are enclosed within the boundary of the sub-area 9 without any overlap into another sub-area.
  • the dimple configuration in each sub-area 9 comprises thirteen large dimples 11 formed into a triangle, four large dimples 11 within the triangle and one small dimple 13 at each of the apexes at either end of the longest side of the triangle.
  • the four large dimples 11 within the triangle are positioned such that three of the dimples 11 form a line parallel to the longest side of the triangle and the fourth dimple is equidistant from the ends of the line, as shown in Fig. 2.
  • This pattern is repeated in each of the sub-areas 9 over the complete golf ball, resulting in a golf ball having improved aerodynamics.
  • each dimple is approximately 5.4% of its diameter.
  • the golf ball is formed from two hemispheres joined together and the joint between the hemispheres coincides with one of the equators 7a-7f.
EP88304580A 1988-05-20 1988-05-20 Aerodynamischer Ball Withdrawn EP0342287A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP88304580A EP0342287A1 (de) 1988-05-20 1988-05-20 Aerodynamischer Ball

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88304580A EP0342287A1 (de) 1988-05-20 1988-05-20 Aerodynamischer Ball

Publications (1)

Publication Number Publication Date
EP0342287A1 true EP0342287A1 (de) 1989-11-23

Family

ID=8200077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88304580A Withdrawn EP0342287A1 (de) 1988-05-20 1988-05-20 Aerodynamischer Ball

Country Status (1)

Country Link
EP (1) EP0342287A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0464254A1 (de) * 1990-07-02 1992-01-08 Sumitomo Rubber Industries Limited Golfball
US6677257B2 (en) 1999-12-24 2004-01-13 Milliken Industrials Limited Fabric for tennis ball covering and method for manufacturing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555061A1 (fr) * 1983-11-21 1985-05-24 Sumitomo Rubber Ind Balle de golf
EP0159550A2 (de) * 1984-04-27 1985-10-30 Wilson Sporting Goods Company Muster von Vertiefungen an einem Golfball
EP0217483A2 (de) * 1985-09-30 1987-04-08 Sumitomo Rubber Industries Limited Golfball

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2555061A1 (fr) * 1983-11-21 1985-05-24 Sumitomo Rubber Ind Balle de golf
EP0159550A2 (de) * 1984-04-27 1985-10-30 Wilson Sporting Goods Company Muster von Vertiefungen an einem Golfball
EP0217483A2 (de) * 1985-09-30 1987-04-08 Sumitomo Rubber Industries Limited Golfball

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0464254A1 (de) * 1990-07-02 1992-01-08 Sumitomo Rubber Industries Limited Golfball
US6677257B2 (en) 1999-12-24 2004-01-13 Milliken Industrials Limited Fabric for tennis ball covering and method for manufacturing the same

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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Designated state(s): GB

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19900525