| 摘要 |
PROBLEM TO BE SOLVED: To partially wash an object to be washed by reducing the danger of damaging its raw material, and to improve operability. SOLUTION: This washing machine is provided with an ultrasonic oscillator 22 supplied with driving power to be ultrasonic-vibrated, a vibration horn 23 mechanically connected to the ultrasonic oscillator 22 to be ultrasonic-vibrated, and abutted for its tip part on an object 100 to be washed to apply ultrasonic vibration to the same, and an ultrasonic washing device 9 having a liquid feeding port to feed water to the tip part surface of the vibration horn 23.
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