| 摘要 |
Stool for dental use, having a seat (4) with a rear portion (10) fixed to a upper end of a supporting post (3) and a front portion (11) rotatably coupled to rear portion (10) to rotate between a lifted position and a lowered position under the thrust of a wedge element (20), which is rotatably coupled to rear portion (10) to rotate around a first vertical rotation axis (22), has a upper face (23) inclined according to an angle different from 90° relative to first axis (22), and supports front portion (11) at its bottom. |
