Patent ID: 6575421
Filing Date: 2003-06-10
Classification: B60N

Abstract:
An adjusting device for an adjustable vehicle seat, said adjusting device arranged between a first adjusting element and a second adjusting element, said adjusting device being capable of adjusting said first adjusting element relative to said second adjusting element, said adjusting device comprising:a threaded spindle and an associated spindle nut, the spindle nut encompassing the spindle, the spindle being fixed to the first adjusting element of the adjusting device whereby the spindle is non-rotatable; wherein the spindle nut: a) is carried by the second adjusting element so that the spindle nut can be rotated, b) has an outer case and defines a worm wheel on said outer case that engages a worm which is connectable to a multi-turn actuation device; c) is made of a synthetic material; and d) has two axial end areas and is encompassed on each of these two axial end areas by a reinforcing barrel that encircles the corresponding axial end area of the spindle nut and is non-rotatably linked to the spindle nut.