| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a miniaturized lightweight stapler which can cope widely with the thickenss and material of an object. SOLUTION: A stapler is equipped with an ultrasonic oscillator 2, a horn part 3 which contacts the oscillator 2, amplifies the oscillation, and has a machined surface 31 at its end, an upper frame 4 which holds the oscillator 2 and the horn 3 integrally at its one end part, and a lower frame 5 which can move toward/backward the frame 4. A chip 51 having a press surface 51A opposite the surface 31 of the horn 3 is attached to the frame 5, and the surface 31 of the horn 3 is coated with a rigid alumite 31A.</p> |
