LONGITUDINAL ADJUSTER AND VEHICLE SEAT

A longitudinal adjuster () for a vehicle seat () includes at least one rail pair (), which is formed from a first seat rail (), for connecting to a seat frame side part (), and a second seat rail (), for connecting to a vehicle structure, that slid relative to each other in a longitudinal direction (x) and engage each other and form an inner channel (). A reinforcing profiled element () is fastened to the second seat rail () and is arranged in the inner channel (). The reinforcing profiled element () has a connection section (), which is led out of the inner channel () toward a rear and is connectable to a rear end surface () of a seat frame side part (). The vehicle seat with the longitudinal adjuster, has a seat frame side part () connected to a first seat rail ().