Folding seat part with integrated table

A folding seat part of a motor vehicle seat, comprising an integrated table with a base and a tabletop, said tabletop including a center leaf and at least one side leaf hinged to said center leaf, wherein said side leaf may be swung from a rest position against said base to a use position in a horizontal plane with said center leaf, said center leaf and said side leaf being mounted to said base for rotational movement about a vertical axis such that said rotational movement causes said side leaf to lock in a horizontal plane with said center leaf with said center leaf and said side leaf resting on said base.