| 摘要 |
A tool for frictionally welding and binding art overlapped part of thermoplastic strap wound about an object by an vibrator. In order to horizontally vibrate the vibrator, an upper part of flange of the vibrator is abutted to a lower part of needle holder, a lower part of the flange is engaged with an elastic member, and the vibrator is lowered by direct pressure of needle holder, and lifted by the elastic member. Thus, by the leading end of vibrator that is horizontally vibrated, an upper strap is vibrated in the direction of width against a lower strap, while applying a pressure to the overlapped strap part, and the overlapped strap part is frictionally welded. In addition, a rutting blade is elastically moved in the vertical direction by the elastic member, and applied with an appropriate pressure of such level that the upper strap cannot be cut only with the pressure, so that the succeeding excess part of upper strap is cut apart by the cutting blade due to the vibration, when the upper strap of overlapped strap part is vibrated.
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