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 dimple-free great circles and consisting of an equal number of first domains and second domains, and wherein:
the first domain has three-way rotational symmetry about the central point of the first domain;
the second domain has three-way rotational symmetry about the central point of the second domain;
the dimple pattern within the first domain is different from the dimple pattern within the second domain;
the total number of dimples on the outer surface of the golf ball is from 500 to 1000;
the plurality of dimples includes a plurality of small diameter dimples and a plurality of large diameter dimples, wherein each small diameter dimple has a diameter of from 0.020 inches to 0.075 inches, and wherein each large diameter dimple has a diameter of from 0.100 inches to 0.200 inches; and
wherein the difference in diameter between any two small diameter dimples is less than 0.005 inches.
2. 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 dimple-free great circles and consisting of an equal number of first domains and second domains, and wherein:
the first domain has three-way rotational symmetry about the central point of the first domain;
the second domain has three-way rotational symmetry about the central point of the second domain;
the dimple pattern within the first domain is different from the dimple pattern within the second domain;
the total number of dimples on the outer surface of the golf ball is from 500 to 1000;
the plurality of dimples includes a plurality of small diameter dimples and a plurality of large diameter dimples, wherein each small diameter dimple has a diameter of from 0.020 inches to 0.075 inches, and wherein each large diameter dimple has a diameter of from 0.100 inches to 0.200 inches; and
wherein the number of different dimple diameters among all of the small diameter dimples is 2.
3. 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 dimple-free great circles and consisting of an equal number of first domains and second domains, and wherein:
the first domain has three-way rotational symmetry about the central point of the first domain;
the second domain has three-way rotational symmetry about the central point of the second domain;
the dimple pattern within the first domain is different from the dimple pattern within the second domain;
the total number of dimples on the outer surface of the golf ball is from 500 to 1000;
the plurality of dimples includes a plurality of small diameter dimples and a plurality of large diameter dimples, wherein each small diameter dimple has a diameter of from 0.020 inches to 0.075 inches, and wherein each large diameter dimple has a diameter of from 0.100 inches to 0.200 inches; and
wherein the number of different dimple diameters among all of the small diameter dimples is 3 or greater.
4. 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 dimple-free great circles and consisting of an equal number of first domains and second domains, and wherein:
the first domain has three-way rotational symmetry about the central point of the first domain;
the second domain has three-way rotational symmetry about the central point of the second domain;
the dimple pattern within the first domain is different from the dimple pattern within the second domain;
the total number of dimples on the outer surface of the golf ball is from 500 to 1000;
the plurality of dimples includes a plurality of small diameter dimples and a plurality of large diameter dimples, wherein each small diameter dimple has a diameter of from 0.020 inches to 0.075 inches, and wherein each large diameter dimple has a diameter of from 0.100 inches to 0.200 inches; and
wherein the difference in diameter between any two large diameter dimples is less than 0.005 inches.
5. 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 dimple-free great circles and consisting of an equal number of first domains and second domains, and wherein:
the first domain has three-way rotational symmetry about the central point of the first domain;
the second domain has three-way rotational symmetry about the central point of the second domain;
the dimple pattern within the first domain is different from the dimple pattern within the second domain;
the total number of dimples on the outer surface of the golf ball is from 500 to 1000;
the plurality of dimples includes a plurality of small diameter dimples and a plurality of large diameter dimples, wherein each small diameter dimple has a diameter of from 0.020 inches to 0.075 inches, and wherein each large diameter dimple has a diameter of from 0.100 inches to 0.200 inches; and
wherein at least 30% of the dimples located in the first domain are small diameter dimples.
6. 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 dimple-free great circles and consisting of an equal number of first domains and second domains, and wherein:
the first domain has three-way rotational symmetry about the central point of the first domain;
the second domain has three-way rotational symmetry about the central point of the second domain;
the dimple pattern within the first domain is different from the dimple pattern within the second domain;
the total number of dimples on the outer surface of the golf ball is from 500 to 1000;
the plurality of dimples includes a plurality of small diameter dimples and a plurality of large diameter dimples, wherein each small diameter dimple has a diameter of from 0.020 inches to 0.075 inches, and wherein each large diameter dimple has a diameter of from 0.100 inches to 0.200 inches; and
wherein at least 40% of the dimples located in the first domain are small diameter dimples.