Putter head

Abstract

A putter head includes a head main body having a recess portion in a face surface of the putter head, and a face insert disposed in the recess portion. The face insert has a slit extending upward from a bottom face thereof In the bottom face, the slit may extend from the vicinity of a toe-side end thereof to the vicinity of a heel-side end thereof A bottom end of the slit may be located on a rear edge of the face insert. A ceiling face of the slit may be in a shape of an arch from the toe side to the heel side. The slit may be filled with a viscoelastic material.

1 . A putter head having a face surface, comprising:
 a head main body; and   a face insert disposed on the head main body as the face surface, wherein the face insert has a slit extending upward from a bottom surface thereof, and wherein the face insert has a front face portion positioned on a face-surface side relative to the slit and a rear face portion on a backward side relative to the slit, the front and rear face portions being connected to each other through toe and heel sides of the face insert.   
     
     
         2 . The putter head according to  claim 1 , wherein in the bottom face of the face insert, the slit extends from the vicinity of a toe-side end thereof up to the vicinity of a heel-side end thereof. 
     
     
         3 . The putter according to  claim 1 , wherein the slit is deepest at a central portion in a toe-to-heel direction of the face insert, and the slit becomes shallower gradually or step by step toward the toe side and the heel side from the central portion thereof. 
     
     
         4 . The putter head according to  claim 1 , further comprising a viscoelastic material disposed in the slit of the face insert.