Manufacturing method and golf club head

Abstract

A manufacturing method includes a measurement step of measuring a spring effect of a face portion of a hollow golf club head, and a selection step of selecting, based on a measurement result of the measurement step, an adjustment device, out of a plurality of adjustment devices, to be attached to an attachment portion of the golf club head. The plurality of adjustment devices have different degrees of suppression to the spring effect of the face portion from each other.

What is claimed is: 
     
         1 . A manufacturing method comprising:
 a measurement step of measuring a spring effect of a face portion of a hollow golf club head; and   a selection step of selecting, based on a measurement result of the measurement step, an adjustment device, out of a plurality of adjustment devices, to be attached to an attachment portion of the golf club head,   wherein the plurality of adjustment devices have different degrees of suppression to the spring effect of the face portion from each other.   
     
     
         2 . The method according to  claim 1 , wherein each of the plurality of adjustment devices has an abutment portion that abuts against a rear surface of the face portion, and
 the plurality of adjustment devices have different abutment portion shapes from each other.   
     
     
         3 . The method according to  claim 1 , wherein each of the plurality of adjustment devices has an abutment portion that abuts against a rear surface of the face portion, and
 the plurality of adjustment devices have different positions where the abutment portions abut against the rear surfaces from each other.   
     
     
         4 . The method according to  claim 1 , wherein each of the plurality of adjustment devices has a distal end portion that faces a rear surface of the face portion, and
 the plurality of adjustment devices include an adjustment device having the distal end portion that abuts against the rear surface and an adjustment device having the distal end portion that is spaced apart from the rear surface.   
     
     
         5 . A hollow golf club head comprising:
 a head body;   a support member selected out of a plurality of support members, each of which is attachable to an attachment portion provided in the head body; and   an abutment member attached to the attachment portion through the support member and abuts against a rear surface of a face portion of the head body,   wherein the plurality of support members support the abutment member so that positions where the abutment members abut against the rear surfaces are different from each other.   
     
     
         6 . A hollow golf club head comprising:
 a head body; and   an abutment member selected out of a plurality of abutment members, each of which is attachable to an attachment portion provided in the head body,   wherein each of the plurality of abutment members has an abutment portion that abut against rear surface of face portion, and   the plurality of abutment members include a plurality of abutment members having different abutment portion shapes from each other.