Ultrasonic vibration welder
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United States of America Patent
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Sep 27, 2011
Grant Date -
Aug 19, 2010
app pub date -
Jul 23, 2008
filing date -
Jul 24, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention solves the problem that a connecting portion between a horn and a vibration transmission rod has a tendency to get damaged and the problem associated with the structure in which a chip is attached to an end of the vibration transmission rod, which occur with the known ultrasonic vibration welder. A vibration transmission rod has an end surface serving as a vibration-and-pressure application surface, and a polygonal cross section. The vibration transmission rod is disposed at an end of a horn in such a manner that they vibrate together. The vibration transmission rod and a mass are formed separately. The mass applies pressure to a projection formed at a nodal point of the vibration transmission rod.
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