1. A vehicle seat comprising:a seat part having a seat surface for a seat occupant, said seat part comprising two side parts between which a cross tube extends along a pivot axis; and
an adjustment mechanism comprising a plurality of rockers which are pivotably coupled to said seat part,
said cross tube being divided into a long tube element and at least a first short tube element,
said long tube element having a tube section extending along a longitudinal direction between said two side parts of said seat part and being inserted into first and second openings of said side parts,
said first short tube element having a tube section extending along a longitudinal direction and two bead sections formed on the short tube element at a certain axial distance to each other and radially protruding with respect to the tube section,
said first short tube element being connected in a torsionally locked manner both to a first end of said long tube element and to a first rocker of the plurality of rockers,
said first rocker having a planar section and a first opening formed in the planar section, wherein the first short tube element extends through the first opening with the bead sections abutting the planar section of the first rocker for axially fixing the first short tube element to the first rocker, which is arranged between said two bead sections, and
a front end of said first short tube element, which faces a first side part of said two side parts and abuts said first side part, forming a spacer between said first side part and said first rocker.