| 摘要 |
PROBLEM TO BE SOLVED: To produce a kneeling chair preventing legs from being numbed with kneeling for a long period. SOLUTION: Since a support and leg part connecting a seat surface part and a foundation part is threaded in the manner of the combination of a male screw and a female screw, the height of the seat surface can be adjusted subtlety, thereby the pressure applied to the legs is minimized.
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