| 摘要 |
An automatic lifting and lowering device for a toilet seat or a toilet cover usable for a toilet seat provided with a function of washing a body with hot water, which requires reduced size and weight, comprising a rotating shaft ( 40 ) rotated together with the toilet seat or the toilet cover, a drive motor ( 32 ) rotating the rotating shaft ( 40 ) in normal and reverse directions, and a speed reduction gear train ( 33 ), wherein the drive force of the drive motor ( 32 ) is transmitted to the rotating shaft ( 40 ) through the speed reduction gear train ( 33 ) to automatically lift and lower the toilet seat or toilet cover, whereby the automatic lifting and lowering device itself can be formed compact by using a planetary gear mechanism for the speed reduction gear train ( 33 ).
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