| 摘要 |
A practitioner's chair (10), in particular for a dentist, has a foot (11), a vertically adjustable seat (12) and at least a first articulation (13) between the foot (11) and the seat (12) arranged in a front area of the seat (12) and by means of which the seat (12) is pivotably held with respect to the foot (11). In order to ensure an ergonomically favourable individual relaxed posture of the practicioner, independently from his body size, while maintaining the desired treatment position, at least one second articulation (15) is provided between the foot (11) and the seat (12) whose relative displacement is adjustably coupled to the relative displacement of the first articulation (13), so that the level of the eyes of the seated practicioner remains at least approximately constant when he swivels and/or when the treatment requires a swivelling movement. The articulations have length adjustment means (14 and 16), and a mechanism, a hydraulic forced control or an articulation displacement coupled to an electric motor and controlled by a control unit ensure the coupled relative displacement between the articulations. |
