Bucket seat with inclination-profile adjusting mechanism

A bucket seat, comprising a seat;

• a backrest extending substantially transverse to the seat and having a flexible support surface and a plurality of curved shaped vertical members for supporting the support surface, the support surface abutting the curved shaped vertical supporting members along their entire longitudinal extent, members for receiving respective shaped members and extends in a same direction as the shaped members;
• and means for rotating the shaped members and the receiving members about respective vertical axes in opposite direction upon changing of an inclination of the support surface, with an alignment of respective shaped members and the receiving members being maintained, whereby a shape of the backrest changes upon changing inclination of the support surface, wherein the support surface is formed of spaced side members and a flexible, in a predetermined direction, covering connected with the side members, wherein the side members are rigid in a direction toward the covering but are bendable in a longitudinal direction, and wherein the bucket seat further includes holders for uniformly distributing a tensioning force over the covering.