Stützvorrichtung für eine Sitzlehnenanordnung eines Fahrzeuginnenraums

The invention relates to a supporting device comprising a bearing arrangement attached to a vehicle in the mounted state, and a support structure which is used to support a seat back section and is pivotably connected to the bearing arrangement in an articulated manner such that it can pivot between a functional position in which the support structure extends substantially in the interior vertical direction and the seat back section forms a backrest, and a supporting position in which the support structure extends substantially in the interior longitudinal direction and the seat back section forms an armrest, an abutment being provided on which the support structure, in the supporting position, is non-rotatably supported in the direction of a position extending beyond the supporting position. According to the invention, the bearing arrangement comprises a non-rotatably mounted bearing shaft extending substantially in the interior transverse direction in the mounted state, to which the support structure is pivotably connected in an articulated manner, and the abutment is formed by means of at least one abutment element that is arranged and non-rotatably connected to the bearing shaft in such a way that the support structure, in the supporting position, comes into contact with an abutment surface of the abutment element and is thereby supported on the bearing shaft in a non-rotatable manner on one side. The invention is applicable in passenger vehicles.