| 摘要 |
PURPOSE: A structure of a putter head for a golf for minimizing air resistance by inserting and building in a hollow pipe in a through hole passing through the front surface and back side of the putter head is provided to increase the control ability of the golf putter and minimize the air resistance. CONSTITUTION: A putter for a golf head structure is formed in a plurality of penetration holes(35) passing through the front surface and back side of a putter head(30) is formed are combined with the hollow pipe. A plurality of projections is projected from the front surface. The tip-end part of the hollow pipe roundly stops with curling. The tip-end part of the hollow pipe forms into the material having the strength which the hollow pipe lows than the intensity of the putter head. |
