| 摘要 |
The present invention relates to the improvement of a putter according to a prior invention patent US 06142884 (Korea patent 10-0584814). The hindering protrusion (321) of a rotating connection part (300) is elongated outward and fixing screws (205, 206) hinders the rotation of the rotating connection part (300) at a position far from the center of axial hole (311), thereby hindering the rotation of the rotating connection part (300) with high torque lest an adjusted lie angle change despite a long-term usage when a user does not want. The rotating connection part (300) has a semicylinder (322), which is a round protruding bearing part, in the middle of a lower part and the hindering protrusion (321) formed at both sides thereof so as to elongate fixing screw holes (203, 204), which are formed at the bottom part of a receiving space (210), by placing the hindering protrusion (321) above. The hindering protrusion is formed from the bottom part of the axial hole (311) of the hindering protrusion (321) to the upper end of the axial hole (311), and desirably from the center to the upper end of the axial hole (311). The receiving space of a head (200) for receiving the rotating connection part (300) has, at a bottom part, a concave receiving part (201) for receiving the semicylinder (322) of the rotating connection part (300). The fixing screw holes (203, 204) for combining the fixing screws (205, 206) can be elongated by forming, at both sides of the receiving part (201), an upward protruding protrusion part (202). |
