Putter-type golf club head

Abstract

A putter-type golf club head includes a body and a hosel coupled to the body. The hosel includes a beam coupled directly to and extending along the top of the body. The hosel also includes a first strut, at a first oblique angle relative to the beam, including a first-strut lower end coupled directly to the heelward end of the beam, and including a first-strut upper end. The hosel further includes a second strut, at a second oblique angle relative to the beam, including a second-strut lower end coupled directly to the toeward end of the beam, and including a second-strut upper end coupled directly to the first-strut upper end. The hosel additionally includes a forward recess and a rearward recess. The hosel also includes a socket, coupled directly to the first-strut upper end and to the second-strut upper end, and configured to mate with a golf club shaft.

1 . A putter-type golf club head, comprising:
 a body, comprising a toe, a heel, a top, a sole, a rear, and a front, wherein the toe is opposite the heel, the top is opposite the sole, the rear is opposite the front, and the front comprises a strike face; and   a hosel, coupled to the top of the body, wherein the hosel comprises:
 a beam, comprising a heelward end and a toeward end, and coupled directly to and extending along the top of the body in a heel-to-toe direction from the heelward end to the toeward end; 
 a first strut, at a first oblique angle relative to the beam, comprising a first-strut lower end coupled directly to the heelward end of the beam, and comprising a first-strut upper end; 
 a second strut, at a second oblique angle relative to the beam, comprising a second-strut lower end coupled directly to the toeward end of the beam, and comprising a second-strut upper end coupled directly to the first-strut upper end; 
 a forward recess and a rearward recess defined between the beam, the first strut, and the second strut; and 
 a socket, coupled directly to the first-strut upper end and to the second-strut upper end, and configured to mate with a golf club shaft; 
   wherein:
 the beam, the first strut, and the second strut of the hosel and at least the top of the body form a one-piece monolithic seamless construction; 
 the beam, the first strut, and the second strut of the hosel, and at least the top of the body are made of the same material; 
 the beam extends along only a portion of a length of the front of the body; 
 the strike face comprises milled surface features; 
 the front comprises an insert recess and a face insert seated within the insert recess; 
 the face insert defines the strike face; 
 a material of the face insert is different than a material of the front that defines the insert recess; 
 the front comprises a portion that surrounds the insert recess; 
 the strike face defined by the face insert has a color that contrasts with a color of the portion of the front that surrounds the insert recess; 
 the body further comprises a weight receptacle formed in the sole; 
 the body further comprises a weight seated in the weight receptacle; and 
 a central axis of the weight receptacle is non-parallel relative to a hosel axis defined by the socket. 
   
     
     
         2 . (canceled) 
     
     
         3 . The putter-type golf club head according to  claim 1 , wherein the hosel axis is forward of the strike face. 
     
     
         4 .- 21 . (canceled) 
     
     
         22 . The putter-type golf club head according to  claim 1 , wherein the material of the face insert comprises a two-part polyurethane material. 
     
     
         23 . (canceled) 
     
     
         24 . The putter-type golf club head according to  claim 1 , wherein the color of the face insert is white. 
     
     
         25 . The putter-type golf club head according to  claim 1 , wherein:
 the front comprises a portion that surrounds the insert recess; and   the strike face defined by the face insert has a surface texture that is different than a surface texture of the portion of the front that surrounds the insert recess.   
     
     
         26 . The putter-type golf club head according to  claim 1 , wherein the strike face, defined by the face insert, is grooveless. 
     
     
         27 . (canceled) 
     
     
         28 . (canceled) 
     
     
         29 . The putter-type golf club head according to  claim 1 , wherein a ratio of a blade length of the body to a length of the face insert is between, and inclusive of, 1.1 and 1.9. 
     
     
         30 . The putter-type golf club head according to  claim 1 , wherein a ratio of a length of the hosel to a length of the face insert is between, and inclusive of, 0.5 and 1.2. 
     
     
         31 . The putter-type golf club head according to  claim 1 , wherein a ratio of a length of the hosel to a thickness of the face insert is between, and inclusive of, 12 and 26. 
     
     
         32 . The putter-type golf club head according to  claim 1 , wherein a ratio of a length of the hosel to a height of the face insert is between, and inclusive of, 2 and 5. 
     
     
         33 .- 39 . (canceled) 
     
     
         40 . The putter-type golf club head according to  claim 1 , wherein a thickness of the beam changes along a length of the beam. 
     
     
         41 . (canceled) 
     
     
         42 . The putter-type golf club head according to  claim 1 , wherein the first oblique angle and the second oblique angle are different. 
     
     
         43 . The putter-type golf club head according to  claim 42 , wherein:
 the first oblique angle is between, and inclusive of, 102° and 143°; and   the second oblique angle is between, and inclusive of, 105° and 160°.   
     
     
         44 - 47 . (canceled) 
     
     
         48 . The putter-type golf club head according to  claim 1 , wherein a ratio of a Zup value of the putter-type golf club head to a coordinate of a center-of-gravity of the putter-type golf club head, on a positive y-axis of a golf club head origin coordinate system originating at a geometric center of the strike face, is between, and inclusive of, 0.6 and 1.8. 
     
     
         49 .- 55 . (canceled) 
     
     
         56 . The putter-type golf club head according to  claim 1 , wherein a ratio of a length of the hosel to a Zup value of the putter-type golf club head is between, and inclusive of, 2.2 and 6.14. 
     
     
         57 . (canceled) 
     
     
         58 . The putter-type golf club head according to  claim 1 , wherein a ratio of a Zup value of the putter-type golf club head to a moment of inertia about an x-axis of a golf club head coordinate system originating at a center of gravity of the putter-type golf club head is between, and inclusive of, 0.00028 per g-cm and 0.0043 per g-cm. 
     
     
         59 . The putter-type golf club head according to  claim 1 , wherein a ratio of a height of the hosel to a Zup value of the putter-type golf club head is between, and inclusive of, 1.6 and 4.7. 
     
     
         60 .- 68 . (canceled) 
     
     
         69 . The putter-type golf club head according to  claim 1 , wherein:
 the body further comprises a sole-plate recess formed in the sole; and   the body further comprises a sole-plate insert seated in the sole-plate recess.   
     
     
         70 . The putter-type golf club head according to  claim 69 , wherein a ratio of a blade length of the body to a length of the sole-plate insert is between, and inclusive of, 1.09 and 1.9. 
     
     
         71 . The putter-type golf club head according to  claim 70 , wherein a ratio of a depth of the body to a depth of the sole-plate insert is between, and inclusive of, 1.2 and 2.4. 
     
     
         72 . (canceled) 
     
     
         73 . A putter-type golf club head, comprising:
 a body, comprising a toe, a heel, a top, a sole, a rear, and a front, wherein the toe is opposite the heel, the top is opposite the sole, the rear is opposite the front, and the front comprises a strike face, wherein:
 the body has blade length and a body depth; 
 a ratio of the body depth to the blade length is between, and inclusive of, 0.6 and 0.9; 
 the body comprises a sole-plate recess and a sole-plate insert seated in the sole-plate recess; 
 the sole-plate insert defines at least 50% of a total surface area of the sole; 
 the body further comprises a heel weight receptacle and a toe weight receptacle; 
   a heel weight retained within the heel weight receptacle;   a toe weight retained within the toe weight receptacle; and   a hosel, coupled to the top of the body, wherein the hosel comprises:
 a beam, comprising a heelward end and a toeward end, and coupled directly to and extending along the top of the body in a heel-to-toe direction from the heelward end to the toeward end; 
 a first strut, at a first oblique angle relative to the beam, comprising a first-strut lower end coupled directly to the heelward end of the beam, and comprising a first-strut upper end; 
 a second strut, at a second oblique angle relative to the beam, comprising a second-strut lower end coupled directly to the toeward end of the beam, and comprising a second-strut upper end coupled directly to the first-strut upper end; 
 a forward recess and a rearward recess defined between the beam, the first strut, and the second strut; and 
 a socket, coupled directly to the first-strut upper end and to the second-strut upper end, and configured to mate with a golf club shaft. 
   
     
     
         74 . The putter-type golf club head according to  claim 73 , wherein:
 the heel weight is interposed between the sole-plate insert and the strike face;   the toe weight is interposed between the sole-plate insert and the strike face; and   the sole-plate insert is interposed between the heel weight and the toe weight.   
     
     
         75 . A putter-type golf club head, comprising:
 a body, comprising a toe, a heel, a top, a sole, a rear, and a front, wherein the toe is opposite the heel, the top is opposite the sole, the rear is opposite the front, and the front comprises a strike face, wherein:
 the body has blade length and a body depth; 
 a ratio of the body depth to the blade length is between, and inclusive of, 0.2 and 0.3; 
 the body further comprises a heel weight receptacle and a toe weight receptacle; 
   a heel weight threadably retained within the heel weight receptacle;   a toe weight threadably retained within the toe weight receptacle; and   a hosel, coupled to the top of the body, wherein the hosel comprises:
 a beam, comprising a heelward end and a toeward end, and coupled directly to and extending along the top of the body in a heel-to-toe direction from the heelward end to the toeward end; 
 a first strut, at a first oblique angle relative to the beam, comprising a first-strut lower end coupled directly to the heelward end of the beam, and comprising a first-strut upper end; 
 a second strut, at a second oblique angle relative to the beam, comprising a second-strut lower end coupled directly to the toeward end of the beam, and comprising a second-strut upper end coupled directly to the first-strut upper end; 
 a forward recess and a rearward recess defined between the beam, the first strut, and the second strut; and 
 a socket, coupled directly to the first-strut upper end and to the second-strut upper end, and configured to mate with a golf club shaft.