Golf ball

Abstract

The present invention relates to a golf ball including one or more non-dimple areas that do not have dimples are provided in relation to a dimple area having a plurality of dimples arranged on the entire outer surface of the golf ball. The non-dimple areas are two non-dimple areas which are positioned to face opposite directions from each other on an axial central line that passes through an axial center of the golf ball, and which are surrounded by other dimples, and recessed circular arcs of dimples in the dimple area are distributed with variable diameter sizes so as to compensate for the whole volume of the golf ball which is reduced by the provision of the non-dimple areas.

1 . A golf ball including one or more non-dimple areas that do not have dimples are provided in relation to a dimple area having a plurality of dimples arranged on the entire outer surface of the golf ball,
 wherein the non-dimple areas are two non-dimple areas which are positioned to face opposite directions from each other on an axial central line that passes through an axial center of the golf ball, and which are surrounded by other dimples, and   recessed circular arcs of dimples in the dimple area are distributed with variable diameter sizes so as to compensate for the whole volume of the golf ball which is reduced by the provision of the non-dimple areas.   
     
     
         2 . The golf ball of  claim 1 , wherein the pair of non-dimple areas are positioned on an equator line formed by a seam line which is formed when outer covers are bonded to each other within a mold when manufacturing the golf ball, and pole parts which face opposite directions from each other on an axial center line passing through the axial center of the golf ball and which are perpendicular to the axial center line. 
     
     
         3 . The golf ball of  claim 1 , wherein the dimples of the dimple area are arranged symmetrically with reference to the equator line which is a center line of an outer surface of the golf ball which is perpendicular to the axial center line which connects the non-dimple areas and passes through the axial center of the golf ball. 
     
     
         4 . The golf ball of  claim 1 , wherein in order to compensate for the entire volume of the golf ball which is reduced by providing the non-dimple area, the diameter sizes of the dimples are variably and symmetrically distributed to be symmetrical with reference to the equator line which is the center line of the outer surface of the golf ball and is perpendicular to the axial center line passing through the axial center of the golf ball while connecting the non-dimple areas. 
     
     
         5 . The golf ball of  claim 1 , wherein the diameter of the non-dimple areas formed by being surrounded by the dimple area is in a range of 7 mm to 20 mm. 
     
     
         6 . The golf ball of  claim 1 , further comprising a visible mark having high visibility such as a maker's logo, sign, or symbol which is printed on the non-dimple areas. 
     
     
         7 . The golf ball of  claim 1 , further comprising a striking direction indication mark printed on the outer surface of the golf ball so as to allow a user to recognize a striking direction, such as a symbol or a straight line on the straight line visually connecting the non-dimple areas. 
     
     
         8 . The golf ball of  claim 6 , further comprising a striking direction indication mark printed on the outer surface of the golf ball so as to allow a user to recognize a striking direction, such as a symbol or a straight line on the straight line visually connecting the non-dimple areas. 
     
     
         9 . The golf ball of  claim 5 , further comprising a visible mark having high visibility such as a maker's logo, sign, or symbol which is printed on the non-dimple areas. 
     
     
         10 . The golf ball of  claim 5 , further comprising a striking direction indication mark printed on the outer surface of the golf ball so as to allow a user to recognize a striking direction, such as a symbol or a straight line on the straight line visually connecting the non-dimple areas.