| 摘要 |
PROBLEM TO BE SOLVED: To reduce the loading space of an oral cavity cleaning device, to lessen pressure drop and to facilitate piping. SOLUTION: A pump 14 is arranged above a motor 12 on an internal one side of a cylindrical body case 10 of a device body. A waste liquid tank 18 is arranged side by side with the motor 12 on another side. A liquid feed tank 16 is arranged above the waste liquid tank. As a result, the motor 12 and the pump 14 are adjacently arranged within a main body case 10 of 1 and the liquid feed tank 16 and the waste liquid tank 18 are adjacently arranged in parallel thereto.
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