Rail guide for a longitudinal adjustment of a motor vehicle seat and method for producing such a rail guide

A motor vehicle seat comprising:

• a seat frame;
• a seat region;
• a backrest;
• and
• a rail guide comprising at least one pair of rails having a floor rail and a seat rail and guiding means disposed between the rails of the pair of rails, the rails of the pair of rails being displaceable relative to each other along a displacement path in a longitudinal direction, which is substantially parallel to an x-axis, the seat rail comprising fastening means for fastening to the seat frame, the seat frame being disposed above the pair of rails, wherein the floor rail and the seat rail are each curved with the same circular radius of curvature, and the radius of curvature is between 1,500 and 3,000 mm and a center of curvature is located on a side of the pair of rails facing away from the seat frame, the seat frame being connected to the fastening means.

A motor vehicle comprising:

• a floor assembly;
• and
• a seat comprising:
• a seat frame;
• a seat region;
• a backrest;
• and
• a rail guide comprising at least one pair of rails having a floor rail and a seat rail and guiding means disposed between the rails of the pair of rails, the rails of the pair of rails being displaceable relative to each other along a displacement path in a longitudinal direction, which is substantially parallel to an x-axis, the seat rail comprising fastening means for fastening to the seat frame, the seat frame being disposed above the pair of rails, wherein the floor rail and the seat rail are each curved with the same circular radius of curvature, and the radius of curvature is between 1,500 and 3,000 mm and a center of curvature is located on a side of the pair of rails facing away from the seat frame, the seat frame being connected to the fastening means, wherein:
• the floor rail is connected to the floor assembly, and, in relation to a vehicle located in a horizontal plane, the backrest, in a rearmost position of the seat frame relative to the rail guide, is inclined rearwards at an angle of 10° to 15° measured from the vertical, and, in the foremost position of the seat frame relative to the rail guide, is inclined rearwards at an angle of 5° to 10° measured from the vertical, with the change of angle between the two positions being at least 4°.