Putter head

Abstract

A putter head includes a head main body and a face insert which is mounted in a face surface of the head main body and formed of viscoelastic body, the face insert having a plurality of slits extending in a direction of toe to heel on a front surface thereof. The face insert is formed of a layered body in which first viscolastic bodies and second viscoelastic bodies having a lower hardness than the first viscoelastic bodies are placed on one another alternately in a direction intersecting the face surface. The slits are formed by eluting the face surface side of the second viscolastic body. The slits are inclined upward in a depth direction from the front face of the face insert to the rear side.

1 . A putter head comprising:
 a head main body; and   a face insert which is mounted in a face surface of the head main body and formed of a viscoelastic body, the face insert having a plurality of slits extending in the direction of toe to heel on a front surface thereof,   wherein the face insert is formed of the layered body in which first viscolastic bodies and second viscoelastic bodies having a lower hardness than the first viscoelastic bodies are placed on one another alternately in a direction intersecting the face surface,   wherein the slits are formed by eluting the face surface side of the second viscolastic body.   
     
     
         2 . The putter head according to  claim 1 , wherein the slit is inclined upward in a depth direction from the front face to the rear face of the face insert. 
     
     
         3 . The putter head according to  claim 1 , wherein the edge between the front face of the face insert and an inside face of the slit is provided with a roundness. 
     
     
         4 . The putter head according to  claim 1 , wherein the hardness (Shore hardness) of the first viscolastic body is D50 to 75 and the hardness of the second viscolastic body is A20 to 50. 
     
     
         5 . The putter head according to  claim 1 , wherein the width of the slit is 0.3 to 0.7 mm and an interval between the slits adjacent to each other is 1.1 to 1.5 mm.