Golf club

Abstract

Provided is a golf club which allows for hitting a golf ball long distance and enhancing the durability of the golf club. The golf club has: a body portion welded and integrally attached with a face portion made of a rolled material. A back surface of the face portion has at least one groove provided at a location lower than a center of gravity on a striking face of the face portion. The at least one groove is extending from a proximity of a toe portion to a proximity of a heel portion. Moreover, three grooves can be provided evenly spaced apart along a direction intersecting with a direction heading from the toe portion to the heel portion.

1 . An iron type golf club, comprising:
 a body portion, having: a sole portion at a bottom section to be put on a ground, a topline portion at an upper section, a toe portion at a front section, a heel portion at a rear section, and a hosel portion configured to attach the body portion to a shaft; and   a face portion, being welded with the body portion and having a striking face for hitting a golf ball,   wherein   a back surface of the face portion has a plurality of grooves being provided at a location lower than a center of gravity on the striking face of the face portion to extend in lines parallel to each other and evenly spaced apart from a proximity of the toe portion to a proximity of the heel portion.   
     
     
         2 - 3 . (canceled) 
     
     
         4 . The iron type golf club according to  claim 1 , wherein
 the plural grooves are provided through a stamping operation.   
     
     
         5 . The iron type golf club according to  claim 4 , wherein
 the face portion is made of a rolled material rolled along a direction heading from the topline portion to the sole portion in a rolling operation.   
     
     
         6 . The iron type golf club according to  claim 5 , wherein the body portion is made of a low-carbon forged steel. 
     
     
         7 . The iron type golf club according to  claim 6 , wherein
 each of the plural grooves has 0.4 mm in depth and a semi-arc shape in cross-section, and   the face portion has a thickness to be less than or equal to 2.1 mm.