Abstract: A seat having a bucket and a supporting structure on which the bucket is fixed. The height of the bucket on the supporting structure is adjustable. A lower sub-assembly of the supporting structure forms a seat subframe and of which at least one bucket support is mounted movable in height following at least one lower guide rail. An upper sub-assembly of the supporting structure is assembled movable in rotation relative to the lower sub-assembly around a pivot axis which is situated close to a lower end of the lower guide rails and situated close to a lower end of the upper sub-assembly. The bucket is fixed to the bucket support in an articulated manner at the seat base and has at least one guide element fixed to the backrest and sliding in an upper guide rail of the upper sub-assembly situated above the lower guide rails.

Abstract: A seat having a bucket and a supporting structure on which the bucket is fixed. The height of the bucket on the supporting structure is adjustable. A lower sub-assembly of the supporting structure forms a seat subframe and of which at least one bucket support is mounted movable in height following at least one lower guide rail. An upper sub-assembly of the supporting structure is assembled movable in rotation relative to the lower sub-assembly around a pivot axis which is situated close to a lower end of the lower guide rails and situated close to a lower end of the upper sub-assembly. The bucket is fixed to the bucket support in an articulated manner at the seat base and has at least one guide element fixed to the backrest and sliding in an upper guide rail of the upper sub-assembly situated above the lower guide rails.