| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a golf swing training instrument capable of strengthening the swing shot. <P>SOLUTION: The golf swing training instrument is used in a golf club with a metal neck part used for inserting a shaft in contact. The training instrument 10 comprises an axial hole 11 and a slit 12 which communicates with the axial hole 11 from the outside of the training instrument and the cross-sectional inner wall face of which along the axial hole 11 of the training instrument 10 is approximately C-shaped. The inner diameter of the axial hole 11 is equal to or slightly larger than the outer diameter of the neck part of the club head. The width of the slit 12 is larger than the outer diameter of the contact-insertion end of the shaft and smaller than the outer diameter of the neck part of the club head. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
