Golf ball dimples with curvature continuity

Details Golf ball dimples with curvature continuity Golf ball dimples with curvature continuity

A - Human Necessities

63

B

A63B 37/14 (2006.01) A63B 37/00 (2006.01)

Patent

CA 2385068

A golf ball (20) having a surface (22) thereon with a plurality of dimples (34, 36, 38, 40, 42, 44 and 46) on the surface (22) is disclosed herein. The contour (199) of each of the dimples (34, 36, 38, 40, 42, 44 and 46) is continuous from a first edge (200a) of each of the dimples (34, 36, 38, 40, 42, 44 and 46) to a second opposing edge (200b) of each of the dimples (34, 36, 38, 40, 42, 44 and 46). The contour (199) at the first edge (200a) may be equal to the contour (199) of a sphere of the golf ball (20). The contour (199) of each of the dimples (34, 36, 38, 40, 42, 44 and 46) may be convex from the first edge (200a) to a first inlfection point (202a) and from the second edge (200a) to a second inflection point (202b), and the contour (199) may be concave between the first inflection point (202a) and the second inflection point (202b). The contour (199) may be defined by the following equation: P(t) = 3 BiJn,i(t) 0# t #1, wherein Jn,i(t) = (ni)ti (1-t)n-i, n is equal to at least five, and i = n + 1. The radius of each point from a bottom center (204) to the first edge (200a) may be different from any other point from the bottom center (204) to the first edge (200a).

L'invention concerne une balle de golf (20) dont la surface (22) comprend une pluralité d'alvéoles (34, 36, 38, 40, 42, 44 et 46). Le contour (199) de chacune de ces alvéoles (34, 36, 38, 40, 42, 44 et 46) est continu entre un premier bord (200a) et un second bord opposé (200b) de chacune de ces alvéoles (34, 36, 38, 40, 42, 44 et 46). Au niveau du premier bord (200a), ce contour (199) peut correspondre au contour (199) d'une sphère de la balle de golf (20). Ledit contour (199) de chacune de ces alvéoles (34, 36, 38, 40, 42, 44 et 46) peut être convexe à partir du premier bord (200a) jusqu'à un premier point d'inflexion (202a) et à partir du second bord (200a) jusqu'à un second point d'inflexion (202b), et peut être concave entre le premier point d'inflexion (202a) et le second point d'inflexion (202b). Le contour (199) en question peut être défini par l'équation suivante: P(t) = 3 B¿i?J¿n,i?(t) 0# t #1, dans laquelle J¿n,i?(t) = (n¿i?)t?I¿ (1-t)?n-i¿, n est supérieur ou égal à cinq, et i = n + 1. Le rayon de chaque point entre un centre inférieur (204) et le premier bord (200a) peut être différent de tout autre point entre ce centre inférieur (204) et ledit premier bord (200a).

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