Patent ID: 6641104
Filing Date: 2003-11-04
Classification: B60N

Abstract:
A longitudinal seat adjustment for a seat of a motor vehicle, the seat adjustment comprising:two pairs (10) of rails arranged a certain distance apart from one another, wherein the two pairs (10) are comprised of an upper rail (11) and a lower rail (12), respectively, wherein the upper rail (11) is adapted to be connected to the seat and the lower rail (12) is adapted to be connected to a floor of the vehicle; wherein the two pairs (10) comprise at least one spring-loaded, movable, plate-shaped locking part (21), respectively, wherein the at least one locking part (21) is supported with freedom to tilt and/or to rotate on the upper rail (11), respectively; wherein the at least one locking part (21), when in the locked position, prevents the upper rail (11) from moving relative to the lower rail (12), respectively; wherein the lower rail (12) has tooth-shaped slots (14) and the upper rail (11) is provided with slit-shaped openings (16), respectively, wherein at least one of the slit-shaped openings and the tooth-shaped slots (14) are wedge-shaped; wherein the at least one locking part (21) has two opposite long sides provided with tooth-shaped projections (15); wherein the at least one locking part (21) has a spring (25), respectively; wherein the tooth-shaped projections (15) are moved by the spring (25) into the slit-shaped openings (16) and the tooth-shaped slots (14) into a locking position such that a first one of the tooth-shaped projections (15â€²1) contacts an edge area (44) of a first one of the tooth-shaped slots (14) and a second one of the tooth-shaped projections (15) contacts an edge area (45) of a first one of the slit-shaped openings (16) wherein the at least one locking part (21) executes an angular movement to reach the locked position, wherein in the locked position the upper and lower rails (11, 12) are held in a position without play.