Patent ID: 6077171
Filing Date: 2000-06-20
Classification: A63B

Abstract:
An iron golf club head comprising:a head body made of light metal and having a front surface, a rear surface, a cavity disposed at said rear surface, and at least four holes disposed in the rear surface between a lower side wall of said cavity and a sole of said head body,said at least four holes forming groups of holes, each of said groups including two or more holes located at a toe part and at a heel part of said head body, respectively, and said holes in each of said groups being spaced at predetermined intervals;a plurality of weight members fitted into said holes, respectively, wherein each of said weight members extends into said respective hole to a predetermined depth and is oriented in a direction toward the front surface of said head body, and each of said weight members is formed of a material having a specific weight that is heavier than a specific weight of the light metal forming said head body, thereby adjusting the location of the center of gravity between the toe part and the heel part of said head body,wherein the weight percentage of said weight members does not exceed forty percent of the total weight of the club head, andwherein each of said weight members has a diameter that is larger than a diameter of the respective hole in said head body and is press-inserted into the respective hole to a predetermined length so far as the length is within the depth provided by the respective hole.