| 摘要 |
PROBLEM TO BE SOLVED: To provide a moving seat capable of excellently performing the angle adjustment of a support arm. SOLUTION: The support arm 33 is supported capable of balance operation in the neighborhood of the upper end of a post 32, and an angle adjustment mechanism 4 for fixing the side of one rotation end 332 of the support arm 33 capable of angle adjustment by screw action is provided.
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