| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of the remarkable decrease in injection efficiency through increase in an opening area of the nozzles and the arm in a conventional dish washer in which the area corresponding to that for the reverse injection is additionally required in an injecting hole for rotating an arm nozzle for reversely injecting water in the direction opposite to the rotational direction so as to obtain the thrust in the rotative direction. SOLUTION: The injection hole for injecting cleaning liquid or rinsing liquid in the direction which is the same direction as that of the rotation of the nozzle arm, is formed. COPYRIGHT: (C)2003,JPO
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