| 摘要 |
<p>PROBLEM TO BE SOLVED: To permit the switching of purifying operation into a plurality of stages with a simple constitution, provide child lock function and permit the stopping of the purifying operation quickly upon child lock. SOLUTION: When two temperature setting switches 12 are pushed simultaneously, the mode of operation is switched and when a purifying operation switch 14 is pushed, it is decided whether the operation is lock mode or not. When the mode of operation is not lock mode, the operation is switched and circulated upon every pushing operations of the purifying operation switch 14 in the sequence of 'weak' or the starting of operation, 'medium', 'strong' and stop of operation. In the case of lock mode, switching operation is not accepted when purifying operation is not effected and operation stopping condition is retained as it is. When it is during the purifying operation, the operation is stopped in spite of the set capacity of the purifying operation. The purifying operation can be switched into a plurality of stages and careless starting of operation can be prevented by child lock function while the operation can be stopped quickly even upon locking.</p> |
