Golf ball

A golf ball having a surface on which numerous dimples are arranged with any dimple being surrounded by a plurality of adjoining dimples, characterized in that mutually adjoining dimples, each defined by a peripheral edge, have disposed therebetween an edge element which has a circularly acurate cross-sectional shape rounded to a radius of curvature of 0.2 to 2.0 mm and forms part of the peripheral edge, and in that, when the golf ball is manufactured with a two-part mold having two halves, the edge elements on or near a ball equator coincident with a parting line between the mold halves are continuously interconnected along the equator and some of the edge elements intersect the equator.

A golf ball having a surface on which numerous dimples are arranged with any dimple being surrounded by a plurality of adjoining dimples, characterized in that mutually adjoining dimples, each defined by a peripheral edge, have disposed therebetween an edge element which has a cross-sectional shape having a constant height and a constant width with respect to a longitudinal axis of the edge element and forms part of the peripheral edge, and in that, when the golf ball is manufactured with a two-part mold having two halves, the edge elements on or near a ball equator coincident with a parting line between the mold halves are continuously interconnected along the equator and some of the edge elements extend at an angle to the equator from one hemisphere through an interconnection between the edge elements to another hemisphere, wherein the series of edge elements on or near the ball equator is composed of portions that extend parallel with the equator, portions that extend at an angle to the equator, and portions that extend on the equator.

A golf ball having a surface on which numerous dimples are arranged with any dimple being surrounded by a plurality of adjoining dimples, characterized in that mutually adjoining dimples, each defined by a peripheral edge, have disposed therebetween an edge element which has a cross-sectional shape having a constant height and a constant width with respect to a longitudinal axis of the edge element and forms part of the peripheral edge, and in that, when the golf ball is manufactured with a two-part mold having two halves, the edge elements on or near a ball equator coincident with a parting line between the mold halves are continuously interconnected along the equator and some of the edge elements extend at an angle to the equator from one hemisphere through an interconnection between the edge elements to another hemisphere, wherein the dimples are composed of pentagonal dimples and other polygonal shaped dimples and the pentagonal dimples account for 50 to 90% of all the dimples.

A golf ball having a surface on which numerous dimples are arranged with any dimple being surrounded by a plurality of adjoining dimples, characterized in that mutually adjoining dimples, each defined by a peripheral edge, have disposed therebetween an edge element which has a cross-sectional shape having a constant height and a constant width with respect to a longitudinal axis of the edge element and forms part of the peripheral edge, and in that, when the golf ball is manufactured with a two-part mold having two halves, the edge elements on or near a ball equator coincident with a parting line between the mold halves are continuously interconnected along the equator and some of the edge elements extend at an angle to the equator from one hemisphere through an interconnection between the edge elements to another hemisphere, wherein the dimples have a distance from the line passing through the apices of the edge elements to the deepest part of the dimple is in a range of 0.1 to 0.4 mm.

A golf ball having a surface on which numerous dimples are arranged with any dimple being surrounded by a plurality of adjoining dimples, characterized in that mutually adjoining dimples, each defined by a peripheral edge, have disposed therebetween an edge element which has a cross-sectional shape having a constant height and a constant width with respect to a longitudinal axis of the edge element and forms part of the peripheral edge, and in that, when the golf ball is manufactured with a two-part mold having two halves, the edge elements on or near a ball equator coincident with a parting line between the mold halves are continuously interconnected along the equator and some of the edge elements extend at an angle to the equator from one hemisphere through an interconnection between the edge elements to another hemisphere, wherein the series of the edge elements that extends circumferentially coincident with the parting line and nearby edge elements are formed to a height which is 0.005 to 0.1 mm higher than in other areas.

A golf ball having a surface on which numerous dimples are arranged with any dimple being surrounded by a plurality of adjoining dimples, characterized in that mutually adjoining dimples, each defined by a peripheral edge, have disposed therebetween an edge element which has a cross-sectional shape having a constant height and a constant width with respect to a longitudinal axis of the edge element and forms part of the peripheral edge, and in that, when the golf ball is manufactured with a two-part mold having two halves, the edge elements on or near a ball equator coincident with a parting line between the mold halves are continuously interconnected along the equator and some of the edge elements extend at an angle to the equator from one hemisphere through an interconnection between the edge elements to another hemisphere, wherein the dimples are disposed by a spherical dodecahedron arrangement wherein the dimples including pentagonal dimples are uniformly disposed within each unit pentagon constituting the spherical dodecahedron.