Abstract: Safety device for a vehicle seat which is fixed inside a vehicle including lateral guides. The safety device consists of at least one safety rail fixed in the vehicle, in the region between the guides, and comprises associated securing mechanisms which are connected to the vehicle seat, and co-operate with the safety rail in a non-contact manner for regular loads applied to the seat, and in the event of irregular, especially accident-related deformations and/or movements in the region of the vehicle seat, engage with the safety rail in such a way that they block further deformation/displacements. The securing mechanisms and the safety rail are embodied in such a way that, during the engagement, reaction forces which act in the direction of axes (X, Y, Z) of a standard vehicle co-ordinates system are applied in a distributed manner to at least two different engagement regions of the safety rail.

Abstract: The invention relates to a safety device (1) for a vehicle seat which is fixed inside a vehicle by means of lateral guides. Said safety device consists of at least one safety rail (8) which is to be fixed in the vehicle, in the region between the guides, and comprises associated safety means (10) which are connected to, or are to be connected to, the vehicle seat, and co-operate with the safety rail (8) in such a way that they (10) are arranged in a non-contact manner in relation thereto (8) for regular loads applied to the seat, and in the event of irregular, especially accident-related deformations and/or movements in the region of the vehicle seat, engage with the safety rail (8) in such a way that they block further deformations/displacements.