| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem of breakage of a joined portion of a horn with a vibration transmission rod in a conventional practice, and to solve such a problem as the case where a chip is attached to a fore end of the vibration transmission rod. <P>SOLUTION: A vibration transmission rod 5 with its end faces 5a, 5b forming a vibration applying face and a pressure applying face has a polygonal shaft cross-section and vibrating with the horn 4 together, The vibration transmission rod 5 and a mass 8 are separate from each other, and the mass 8 presses with one of projections 6, 7 formed at nodal points in the vibration transmission rod 5. <P>COPYRIGHT: (C)2009,JPO&INPIT |
