| 摘要 |
<P>PROBLEM TO BE SOLVED: To eliminate a water supply/discharge device and piping or the like without using liquids such as water, to lower a cost and to improve a vibration performance silently. <P>SOLUTION: The washing machine includes damping means 41 for reducing the vibration of an outer tub 33, and the damping means 41 includes a cylinder 42 for forming an orifice 44 through which air can flow in and out and a weight 43 reciprocating inside the cylinder 42. The natural vibration frequency determined by the weight of the weight 43 and the resilient coefficient inside the cylinder 42 by the reciprocation of the weight 43 is set to the natural vibration frequency of the outer tub 33 changed by the rotation speed of a washing and dewatering tub. <P>COPYRIGHT: (C)2011,JPO&INPIT |
