| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a head capable of enhancing an easiness of a change in a position of a center of gravity and reliably fixing a center-of-gravity adjusting member. <P>SOLUTION: This head 2 includes a head body 4, an additional member 6 in which a contour shape obtained by a projection onto a plane has a rotational symmetric axis z1, and a holding mechanism 28 for holding the additional member 6. The head body 4 has a recess portion 18 in which at least a part of the additional member 6 can be fitted. The holding mechanism 28 is constituted to enable a mutual transition of a holding state in which the additional member 6 is held in the recess portion 18 and a releasing state in which the hold is released. The recess portion 18 inhibits a rotation around the rotational symmetric axis z1 of the additional member 6 in the holding state. The additional member 6 is rotatable around the rotational symmetric axis z1 in the releasing state. A phase of the additional member 6 in the holding state is changed so that a position of a center of gravity of the head can be varied. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
