Seat rail

Seat rail (1) for connecting a vehicle seat (100) to a body of a vehicle, the seat rail (1) having a seat rail profile which is produced by roll-forming of sheet metal, the seat rail profile of the seat rail (1) having an accommodation cavity (11) for a sliding element (20) which is able to be displaced within the accommodation cavity (11) of the seat rail (1), in a longitudinal direction of the seat rail, within the seat rail (1), the sliding element (20) being connected directly or indirectly to the vehicle seat (100), the seat rail profile having, in addition to sheet-metal portions (11A, 11B, 11C, 11D, 11E, 11F) of the accommodation cavity (11) which form a first material layer, at least one upper and/or lateral reinforcing portion (12, 13) which is formed as at least one further second material layer which is produced by roll-forming and reinforces the accommodation cavity (11), characterised in that the sheet-metal portions (11A, 11B, 11C, 11D, 11E, 11F) of the first material layer forming the accommodation cavity (11) have an inner contour which is adapted to an outer contour of the sliding element (20), wherein the sliding element (20) has a central web (21) which, in an assembled state, engages through a guide slot (1A) of the seat rail (1), wherein cantilever arms (211A) and cantilever legs (211E) project from the central web (21), which are arranged at end sides in sheet-metal portions (11B, 11D) provided for this purpose in the accommodation cavity (11), the cantilever arms (211A) and the cantilever legs (211E) each having projections (211B, 211D) at end sides, wherein the projections (211B) of the cantilever arms (211A) engage in semicircular sheet-metal portions (11B) of the accommodation cavity (11), while the projections (211D) of the cantilever legs (211E) engage in U-shaped sheet-metal portions (11B) of the accommodation cavity (11).