| 简介 |
PROBLEM TO BE SOLVED : To provide a device which surely laterally vibrates a tip end of a long member even when vibrating means is arranged on a position which is distant from the tip end of the long member.
SOLUTION : The device includes a long member of which a vibration part is changed the traveling direction of a vertical elastic wave delivering from rear to front within a range to generate lateral vibration provided on a tip end, and a vibrating means which performs application of the vertical elastic wave on a rare end of the long member.
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