Golf ball

• US 5,127,655 A
• Filed: 01/02/1991
• Issued: 07/07/1992
• Est. Priority Date: 07/27/1990
• Status: Expired due to Fees

• Current Assignee: Sumitomo Rubber Industries Limited
• Original Assignee: Sumitomo Rubber Industries Limited
• Inventors: Yamada, Mikio, Oka, Kengo
• Primary Examiner(s): Marlo, George J.
• Application Number:
  US07/636,583
• Time in Patent Office: 552 Days
• Field of Search: 273/232, 273/62, 273/220, 40/327
• US Class Current: 473/384
• CPC Class Codes: A63B 37/0004 Surface depressions or protrusions
• CPC Class Codes: A63B 37/00065 located around the pole or the equator
• CPC Class Codes: A63B 37/0016 Specified individual dimple volume
• CPC Class Codes: A63B 37/0017 Specified total dimple volume
• CPC Class Codes: A63B 37/0018 Specified number of dimples
• CPC Class Codes: A63B 37/002 Specified dimple diameter
• CPC Class Codes: A63B 37/0022 Coatings, e.g. paint films; Markings
• CPC Class Codes: A63B 37/0064 Diameter
• CPC Class Codes: A63B 37/0073 Solid, i.e. formed of a single piece
• CPC Class Codes: A63B 37/0074 Two piece balls, i.e. cover and core
• CPC Class Codes: A63B 37/0075 Three piece balls, i.e. cover, intermediate layer and core

Abstract

A golf ball with dimples disposed in a regular octahedral arrangement having a superior symmetrical property so as to arrange dimples symmetrically in each of numerously divided regions without deteriorating the symmetrical property of the golf ball and by varying volumes of dimples adjacent to each other at a specified ratio with diameters thereof equal to each other, thereby to provide a symmetrical property and uniformity for flying a long distance.

Claims

1. A golf ball comprising:

three great circles formed crossing at right angles with each other on the surface thereof; and

dimples of a uniform diameter arranged in each region divided by imaginary lines obtained by projecting a polyhedron consisting of 18 squares and eight equilateral triangles on a circumscribed surface about the polyhedron so that the dimples do not intersect with any of said imaginary lines;

in each region the volume of at least one of the dimples adjacent to a given dimple being differentiated from the volume thereof by more than 10%.

2. The golf ball as claimed in claim 1, wherein the dimples are symmetrically and uniformly arranged in each of said square and equilateral triangle regions and the dimples are symmetrical with respect to each of said three great circles.

3. The golf ball as claimed in claim 2, wherein the diameters of the dimples arranged in said squares are uniform and those of the dimples arranged in said equilateral triangles are uniform.

4. The golf ball as claimed in claim 2, wherein the diameters of the dimples arranged in said squares are uniform.

5. The golf ball as claimed in claim 2, wherein the diameters of the dimples arranged in said equilateral triangles are uniform.

6. The golf ball as claimed in claim 1, wherein the diameters of the dimples arranged in said squares are uniform and those of the dimples arranged in said equilateral triangles are uniform.

7. The golf ball as claimed in claim 1, wherein the diameters of the dimples arranged in said squares are uniform.

8. The golf ball as claimed in claim 1, wherein the diameters of the dimples arranged in said equilateral triangles are uniform.