| 摘要 |
To adjust a component (17) of a seat (14), and particularly a seat (14) in a motor vehicle, use is made of an adjusting device (28, 29) which has a rotary drive (8) and a gearbox. The gearbox comprises a planetary gear train having a sunwheel (7) driven by the rotary drive (8), at least one planetary gear (4) mounted to rotate on a planetary gear carrier (6) and a fixed annular gear (1). The at least one planetary gear (4) meshes with the sunwheel (7) and the annular gear (1). The output of the gearbox is taken from the planetary gear carrier (6), which takes the particular form of a cable drum so that the adjustment of the component of the seat can be performed by means of a traction cable secured to the cable drum which can be wound up thereon. With the help of a gearbox of this form it is possible to achieve a particularly small size, which substantially simplifies the fitting of the adjusting device (28, 29) into a seat (14).
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