Patent ID: 7677520

Claim:
A longitudinal guide for an automotive vehicle seat comprising: a surrounding rail defining a profile, a surrounded rail and roll bodies disposed between the rails; a free longitudinal channel being formed between the rails; a first lateral encompassing area and a second lateral encompassing area located diagonally opposite the first lateral encompassing area being provided, with the surrounding rail forming an outer grip around the surrounded rail and the roll bodies being disposed in a respective one of the areas; and guide channels for the roll bodies being formed between the rails in the encompassing areas, wherein one guide channel only is formed in the first encompassing area, two guide channels are formed in the second encompassing area, and in the mounted state, the second encompassing area is located lower than the first encompassing area, and the profile of the surrounding rail (i) forms at least one outer corner that is located in the second encompassing area, an inner curve mates with the outer corner formed on the inner side of the profile and the inner curve forms a guide groove for a roll body, and (ii) comprises an enclosing flange, a lower leg and a lower flange extending generally in the direction of the lower leg, the lower flange has a lower flange length and delimits a lower guide channel of the two guide channels of the second encompassing area and is in contact with a lower roll body of the second encompassing area, the lower roll body of the second encompassing area is realized as a roll, the roll has an axial length, the axial length of the roll is smaller than the lower flange length, the enclosing flange runs substantially parallel to the lower leg and has an inner surface, the inner surface delimits an upper guide channel of the two guide channels of the second encompassing area and the inner surface is in contact with an upper roll body of the second encompassing area, and the upper roll body of the second encompassing area is realized as a sphere.