| 摘要 |
Device for adjusting a height of a seat, including at least one actuator connected to at least one source of power via at least one control valve having at least one control member for controlling the pressurizing of the actuator and at least one control member for controlling the exhausting of the actuator, the device including a cam associated, on the one hand, with at least one means of driving as a function of a variation in height of the seat, and, on the other hand, with the valve control members, the said cam being configured to have at least one neutral position in which it actuates no control member, and at least two active positions about the said neutral position, these respectively corresponding to a pressurizing of the actuator when the cam has pivoted about the neutral position in a direction corresponding to a reduction in the height of the seat and to an exhausting of the actuator when the cam is pivoted about the neutral position in a direction corresponding to a raising of the height of the seat, the means of driving also being mounted so that they can be disengaged in relation to the cam.
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