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 putter club face defined by a toe end, a heel end, a top rail and a sole; and the putter club face is planar and extends in a vertical orientation from a ground plane;  
 a plurality of grooves disposed on the putter club face between the top rail and the sole, each groove extending between the toe end and the heel end; 
 wherein each groove comprises a heel portion proximate to the heel end, a toe portion proximate to the toe end, and a center portion extending between the heel portion and the toe portion and including a deepest portion of the groove;  
 wherein depths of the grooves vary in a direction extending between the top rail and the sole and in a direction extending between the heel end and the toe end; 
 wherein a the deepest portion of at least one groove is defined by a generally planar bottom surface portion of the groove when viewed in a horizontal cross section extending from the heel end to the toe end; and 
 wherein the center portion includes a change in depth when viewed in the horizontal cross section extending from the heel end to the toe end. 
 
     
     
       2. The putter type golf club head of  claim 1 , wherein depths of the grooves increase in a direction from the sole to the top rail. 
     
     
       3. The putter type golf club head of  claim 1 , wherein depths of the grooves increase in a direction from the top rail to the sole. 
     
     
       4. The putter type golf club head of  claim 1 , wherein at least one of a cross sectional configuration of the grooves taken from a section extending from the top rail to the sole or a cross sectional configuration of the grooves taken from a section extending from the heel end to the toe end varies between the top rail and the sole. 
     
     
       5. The putter type golf club head of  claim 1 , wherein the grooves located between a generally center portion of the putter club face and the sole have a greater depth than the grooves located between the center portion and the top rail. 
     
     
       6. The putter type golf club head of  claim 1 , wherein the grooves located between a generally center portion of the putter club face and the top rail have a greater depth than the grooves located between the center portion and the sole. 
     
     
       7. The putter type golf club head of  claim 1 , further comprising a separate putter face portion attached to the putter club face, wherein the grooves are located on the putter face portion. 
     
     
       8. A putter type golf club head comprising:
 a putter club face defined by a toe end, a heel end, a top rail and a sole; the putter club face is planar and extends in a vertical orientation from a ground plane;  
 a plurality of grooves disposed on the putter club face, each groove having a heel portion proximate to the heel end and extending toward the toe end, a toe portion proximate to the toe end and extending toward the heel end, and a center portion, extending between the heel portion and the toe portion and including a deepest part portion, of the groove, a change in depth of each groove between the center portion and the heel portion being greater than a change in depth of the groove along the center portion, and a change in depth of each groove between the center portion and the toe portion being greater than a the change in depth of the groove along the center portion; and 
 wherein at least one of lengths or depths of the center portions of the plurality of grooves vary between the top rail and the sole; 
 wherein a the deepest portion of at least one groove is defined by a generally planar bottom surface portion of the groove when viewed in a horizontal cross section extending from the heel end to the toe end; and 
 wherein the change in depth of the groove along the center portion is viewed in the horizontal cross section extending from the heel end to the toe end. 
 
     
     
       9. The putter type golf club head of  claim 8 , wherein at least one of the lengths or the depths of the center portions increase in a direction from the sole to the top rail. 
     
     
       10. The putter type golf club head of  claim 8 , wherein at least one of the lengths or the depths of the center portions increase in a direction from the top rail to the sole. 
     
     
       11. The putter type golf club head of  claim 8 , wherein at least one of a cross sectional shape of the grooves taken from a section extending from the top rail to the sole or a cross sectional shape of the grooves taken from a section extending from the heel end to the toe end varies between the top rail and the sole. 
     
     
       12. The putter type golf club head of  claim 8 , wherein the grooves located between a generally center portion of the putter club face and the sole are generally deeper than the grooves located between the center portion and the top rail. 
     
     
       13. The putter type golf club head of  claim 8 , wherein the grooves located between a generally center portion of the putter club face and the top rail are generally deeper than the grooves located between the center portion and the sole. 
     
     
       14. The putter type golf club head of  claim 8 , further comprising a separate putter face portion attached to the putter club face, wherein the grooves are located on the putter face portion. 
     
     
       15. A method of manufacturing a putter type golf club head, the method comprising:
 forming a putter club face defined by a toe end, a heel end, a top rail and a sole; the putter club face is planar and extends in a vertical orientation from a ground plane;  
 forming a plurality of grooves on the putter club face between the top rail and the sole such that each groove extends between the toe end and the heel end and depths of the grooves vary in a direction extending between the top rail and the sole and in a direction extending between the heel end and the toe end; and 
 forming each groove with a heel portion proximate to the heel end, a toe portion proximate to the toe end, and a center portion extending between the heel portion and the toe portion and including a deepest portion of the groove;  
 forming the plurality of grooves such that a the deepest portion of at least one groove is defined by a generally planar bottom surface portion of the groove when viewed in a horizontal cross section extending from the heel end to the toe end; and 
 forming the center portion includes a change in depth when viewed in the horizontal cross section extending from the heel end to the toe end. 
 
     
     
       16. The method of  claim 15 , wherein forming the plurality of grooves on the putter club face comprises forming the plurality of grooves such that depths of the grooves increase in a direction from the sole to the top rail. 
     
     
       17. The method of  claim 15 , wherein forming the plurality of grooves on the putter club face comprises forming the plurality of grooves such that depths of the grooves increase in a direction from the top rail to the sole. 
     
     
       18. The method of  claim 15 , wherein forming the plurality of grooves on the putter club face comprises forming the plurality of grooves such that at least one of a cross sectional configuration of the grooves taken from a section extending from the top rail to the sole or a cross sectional configuration of the grooves taken from a section extending from the heel end to the toe end varies between the top rail and the sole. 
     
     
       19. The method of  claim 15 , wherein forming the plurality of grooves on the putter club face comprises forming the plurality of grooves such that the grooves located between a generally center portion of the putter club face and the sole have a greater depth than the grooves located between the center portion and the top rail. 
     
     
       20. The method of  claim 15 , wherein forming the plurality of grooves on the putter club face comprises forming the plurality of grooves such that the grooves located between a generally center portion of the putter club face and the top rail have a greater depth than the grooves located between the center portion and the sole. 
     
     
       21. The method of  claim 15 , further comprising forming a separate putter face portion and attaching the putter face portion to the putter club face, wherein forming the plurality of grooves on the putter club face comprises forming the plurality of grooves on the putter face portion.