A vehicle seat, particularly a commercial-vehicle seat is provided with a scissor-type stand (3) which is able to vibrate and which is provided with a top frame (7), two first rocker arms (8a) and two second rocker arms (8b), which intersect in pairs at a scissor axis (10) extending in a transverse seat direction (y). The first two rocker arms (8a) are connected with one another at one end via a transverse tube (18) which extends in the transverse seat direction (y) and are pivotably mounted on the top frame (7) and able to vibrate in the longitudinal seat direction (x) via a bearing mechanism (20). The transverse tube (18) can be locked with the top frame (7) via at least one locking device (31).