A seat assembly for a vehicle, in particular a public transport vehicle such as a bus or train, comprises a transversely positioned bench seat in front of which there is a wheelchair space. In front of the transversely positioned bench seat in the travel direction of the vehicle is arranged a barrier device comprising at least one barrier element and a rotation axis, about which the barrier element can be moved between a tilted-down position extending in front of the transversely positioned bench seat and a tilted-up position which leaves the wheelchair space free.
