| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To easily manufacture a vibrating tip of a power scaler for a dentist at low cost. <P>SOLUTION: First of all, a tip intermediate product 24 with a straight rod- shaped operation part 22 is formed and a groove 26 is engraved in the outer circumferential surface of the operation part of the intermediate product into a programmed pattern using a laser beam machine, so that an operation edge 32 is formed of a grooved side wall 30 and the outer circumferential surface 28 of the operation part. Then, the operation part is bent into a prescribed last shape to provide the tip 10. <P>COPYRIGHT: (C)2003,JPO</p> |
