Dimple patterns for golf balls
The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball. The control points include the center of a polyhedral face, a vertex of the polyhedron, a midpoint or other point on an edge of the polyhedron and others. The method ensures that the symmetry of the underlying polyhedron is preserved while minimizing or eliminating great circles due to parting lines.
1. A golf ball having an outer surface comprising a plurality of dimples disposed thereon, wherein the dimples are arranged in multiple copies of a first domain and a second domain, the first domain and the second domain being tessellated to cover the outer surface of the golf ball in a uniform pattern having no great circles and consisting of eight first domains and six second domains, and wherein:
the dimple pattern within the first domain is different from the dimple pattern within the second domain;
the plurality of dimples comprises dimples having at least two different diameters including a minimum dimple diameter, a maximum dimple diameter, and, optionally, one or more additional dimple diameters;
the first domain consists of perimeter dimples and interior dimples, wherein the perimeter dimples of the first domain consist of dimples having at least two different diameters;
the second domain consists of perimeter dimples and interior dimples, wherein the perimeter dimples of the second domain consist of dimples having no more than two different diameters; and
the diameter of at least one perimeter dimple is the maximum dimple diameter.
2. The golf ball of claim 1 , wherein the first domain has three-way rotational symmetry about the central point of the first domain, and the second domain has four-way rotational symmetry about the central point of the second domain.
3. The golf ball of claim 1 , wherein the diameter of at least one perimeter dimple of the first domain is the maximum dimple diameter, and the diameter of at least one perimeter dimple of the second domain is the minimum dimple diameter.
4. The golf ball of claim 3 , wherein none of the perimeter dimples of the first domain have a diameter that is the minimum dimple diameter, and wherein none of the perimeter dimples of the second domain have a diameter that is the maximum dimple diameter.
5. The golf ball of claim 1 , wherein the diameter of at least one interior dimple is the maximum dimple diameter.
6. The golf ball of claim 5 , wherein none of the interior dimples of the first domain have a diameter that is the maximum dimple diameter.
7. The golf ball of claim 1 , wherein the diameter of at least one interior dimple of the first domain is the minimum dimple diameter, and the diameter of at least one interior dimple of the second domain is the maximum dimple diameter.
8. The golf ball of claim 1 , wherein the plurality of dimples comprises dimples having at least three different diameters.
9. The golf ball of claim 1 , wherein the plurality of dimples comprises dimples having at least four different diameters.
10. The golf ball of claim 1 , wherein the plurality of dimples comprises dimples having at least five different diameters.
11. A golf ball having an outer surface comprising a plurality of dimples disposed thereon, wherein the dimples are arranged in multiple copies of a first domain and a second domain, the first domain and the second domain being tessellated to cover the outer surface of the golf ball in a uniform pattern having no great circles and consisting of eight first domains and six second domains, and wherein:
the dimple pattern within the first domain is different from the dimple pattern within the second domain;
the plurality of dimples comprises dimples having at least three different diameters including a minimum dimple diameter, a maximum dimple diameter, and at least one additional dimple diameter;
the first domain consists of perimeter dimples and interior dimples, wherein the interior dimples of the first domain consist of dimples having no more than two different diameters;
the second domain consists of perimeter dimples and interior dimples, wherein the interior dimples of the second domain consist of dimples having at least three different diameters;
the diameter of at least one dimple in the first domain is the minimum dimple diameter; and
the diameter of at least one dimple in the second domain is the minimum dimple diameter.
12. The golf ball of claim 11 , wherein the first domain has three-way rotational symmetry about the central point of the first domain, and the second domain has four-way rotational symmetry about the central point of the second domain.
13. The golf ball of claim 11 , wherein the plurality of dimples comprises dimples having at least four different diameters.
14. The golf ball of claim 11 , wherein the plurality of dimples comprises dimples having at least five different diameters.
15. The golf ball of claim 11 , wherein the plurality of dimples comprises dimples having at least six different diameters.
16. The golf ball of claim 11 , wherein none of the perimeter dimples of the first domain has a diameter that is the maximum dimple diameter, and wherein the diameter of at least one of the interior dimples of the second domain is the maximum dimple diameter.
17. The golf ball of claim 16 , wherein the diameter of at least one of the perimeter dimples of the second domain is the minimum dimple diameter, and wherein none of the interior dimples of the second domain have a diameter that is the minimum dimple diameter.