Grooves of golf club heads and methods to manufacture grooves of golf club heads

Abstract

Embodiments of grooves of golf club heads and methods to manufacture grooves of golf club heads are generally described herein. Other embodiments may be described and claimed.

What is claimed is: 
     
       1. A putter-type golf club head comprising:
 a body portion having a body toe portion, a body heel portion, a body top rail portion and a body sole portion; 
 a putter club face on the body portion between the body toe portion and the body heel portion and between the body top rail portion and the body sole portion, wherein the putter club face is planar and extends in a vertical orientation from a ground plane; and 
 a plurality of grooves disposed on the putter club face, each groove comprising a groove heel portion proximate to the body heel portion and extending toward the body toe portion; a groove toe portion proximate to the body toe portion and extending toward the body heel portion, and a groove center portion extending between the groove heel portion and the groove toe portion and including a deepest part of the groove, the groove center portion of each groove having a length extending in a direction from the groove heel portion to the groove toe portion; 
 wherein the deepest part is defined by a planar bottom surface portion of the groove when viewed in a horizontal cross section extending from the groove heel portion to the groove toe portion;  
 wherein a depth of each groove increases from the groove heel portion to the deepest part of the groove; 
 wherein a depth of each groove increases from the groove toe portion to the deepest part of the groove; 
 wherein the groove center portion includes a change in depth when viewed in the horizontal cross section extending from the groove heel portion to the groove toe portion;  
 wherein the depths of the grooves increase in a direction from the body top rail portion to a generally central region on the putter club face between the body toe portion, the body heel portion, the body top rail portion and the body sole portion; 
 wherein the depths of the grooves increase in a direction from the body sole portion to the central region; 
 wherein the lengths of the groove center portions of at least two grooves of the plurality of grooves located between the body top rail portion and the central region increase in a direction from the body top rail portion to the central region; and 
 wherein the lengths of the groove center portions of at least two grooves of the plurality of grooves located between the body sole portion and the central region increase in a direction from the body sole portion to the central region. 
 
     
     
       2. The putter-type golf club head of  claim 1 , wherein cross sectional configurations of at least two of the grooves vary between at least one of the body heel portion and the body toe portion or the body top rail portion and the body sole portion. 
     
     
       3. The putter-type golf club head of  claim 1 , wherein the grooves located between the central region and the body sole portion have a greater depth than the grooves located between the central region and the body top rail portion. 
     
     
       4. The putter-type golf club head of  claim 1 , wherein the grooves located between the central region and the body top rail portion have a greater depth than the grooves located between the central region and the body sole portion. 
     
     
       5. The putter-type golf club head of  claim 1 , wherein the putter club face is detachably attached to the body portion. 
     
     
       6. The putter-type golf club head of  claim 1 , wherein a portion of the putter club face including the center groove portion of the plurality of grooves is visually distinguishable from the rest of the putter club face to an individual viewing the putter club face. 
     
     
       7. The putter-type golf club head of  claim 1 , wherein a portion of the putter club face including the center groove portion of the plurality of grooves visually resembles a circle, an oval, a square, a diamond or a polygon to an individual viewing the putter club face. 
     
     
       8. A method of manufacturing a putter-type golf club head comprising:
 forming a body portion having a body toe portion, a body heel portion, a body top rail portion and a body sole portion; 
 forming a putter club face on the body portion between the body toe portion and the body heel portion and between the body top rail portion and the body sole portion, wherein the putter club face is planar and extends in a vertical orientation from a ground plane; and 
 forming a plurality of grooves disposed on the putter club face, each groove comprising a groove heel portion proximate to the body heel portion and extending toward the body toe portion; a groove toe portion proximate to the body toe portion and extending toward the body heel portion, and a groove center portion extending between the groove heel portion and the groove toe portion and including a deepest part of the groove, the groove center portion of each groove having a length extending in a direction from the groove heel portion to the groove toe portion; 
 wherein forming the plurality of grooves comprises:
 forming each groove such that the deepest part is defined by a planar bottom surface portion of the groove when viewed in a horizontal cross section extending from the groove heel portion to the groove toe portion; 
 forming each groove such that a depth of each groove increases from the groove heel portion to the deepest part of the groove; 
 forming each groove such that each groove increases from the groove toe portion to the deepest part of the groove; 
 forming each groove such that the depths of the grooves increase in a direction from the body top rail portion to a generally central region on the putter club face between the body toe portion, the body heel portion, the body top rail portion and the body sole portion; 
 forming each groove such that the depths of the grooves increase in a direction from the body sole portion to the central region; 
 
 forming each groove such that the groove center portion includes a change in depth when viewed in the horizontal cross section extending from the groove heel portion to the groove toe portion;  forming each groove such that the lengths of the groove center portions of at least two grooves of the plurality of grooves located between the body top rail portion and the central region increase in a direction from the body top rail portion to the central region; and   forming each groove such that the lengths of the groove center portions of at least two grooves of the plurality of grooves located between the body sole portion and the central region increase in a direction from the body sole portion to the central region.   
 
     
     
       9. The method of  claim 8 , wherein forming the plurality of grooves comprises forming the grooves such that cross sectional configurations of at least two of the grooves vary between at least one of the body heel portion and the body toe portion or the body top rail portion and the body sole portion. 
     
     
       10. The method of  claim 8 , wherein forming the plurality of grooves comprises forming the grooves such that the grooves located between the central region and the body sole portion have a greater depth than the grooves located between the central region and the body top rail portion. 
     
     
       11. The method of  claim 8 , wherein forming the plurality of grooves comprises forming the grooves such that the grooves located between the central region and the body top rail portion have a greater depth than the grooves located between the central region and the body sole portion. 
     
     
       12. The method of  claim 8 , wherein forming the body portion and the putter club face comprising forming the body portion and the putter club face such that the putter club face is detachably attached to the body portion. 
     
     
       13. The method of  claim 8 , wherein forming the plurality of grooves comprises forming the grooves such that a portion of the putter club face including the center groove portion of the plurality of grooves is visually distinguishable from the rest of the putter club face to an individual viewing the putter club face. 
     
     
       14. The method of  claim 8 , wherein forming the plurality of grooves comprises forming the grooves such that a portion of the putter club face including the center groove portion of the plurality of grooves visually resembles a circle, an oval, a square, a diamond or a polygon to an individual viewing the putter club face.