GOLF BALL DIMPLE PROFILE

摘要

The present invention concerns a golf ball having dimples with a cross-sectional profile comprising a conical top portion and a non-conical bottom portion. More particularly, the profiles of the present invention are defined by three independent parameters: dimple diameter (DD), edge angle (ΦEDGE), and saucer ratio (Sr). These parameters fully define the dimple shape and allow for greater flexibility in constructing a dimple profile versus conventional spherical dimples. Further, conical dimples provide a unique dimple cross-section which is visually distinct.

主权项

1. A golf ball having a generally spherical surface and comprising a plurality of dimples separated by a land area formed on the surface, wherein at least of portion of the dimples consist of a top conical sidewall and a bottom portion and have a saucer ratio (Sr), defined as the ratio of the bottom portion diameter (DS) to the dimple diameter (DD), of from about 0.05 to about 0.75, and an edge angle (ΦEDGE) defined by
1.33(Sr)2−0.39(Sr)+10.40≦ΦEDGE≦2.85(Sr)2−1.12(Sr)+13.49wherein the bottom portion is defined by a function rotated about a central axis, and wherein the function is selected from the group consisting of polynomial, trigonometric, hyperbolic, exponential functions, and the superposition of two or more thereof, excluding linear functions and functions that result in a cone or sphere.