Patent ID: 6971620

Claim:
An adjustment mechanism for a slide of a motor vehicle seat, the adjustment mechanism comprising: a drive worm screw extending in a longitudinal direction; a first nut and a second nut rotatably receiving the worm screw, the first and second nuts having respective first and second transverse faces perpendicular to the longitudinal direction of the worm screw and disposed facing each other; a support comprising a web from which first and second flanges extend that face each other and that co-operate with said web to form a housing for receiving the two nuts, the worm screw being mounted to turn relative to the support so as cause the screw and the support to move in translation relative to each other; and two resilient buffers received respectively between the first nut and the first flange of the support, and between the second nut and the second flange of the support; said adjustment mechanism further comprising a band forming a housing for receiving the two nuts and the two buffers and thereby forming a pre-assembled unit prior to being mounted in the recess of the support, the first and second transverse face of the first and second nuts being in abutment against each other prior to screwing the worm screw into the two nuts, and the first and second nuts have respective first and second tapped bores which, at the first and second transverse faces, have threads that start at different angular positions, so that screwing the worm screw into the nuts generates both a gap between the first and second nuts and elastic deformation of the two buffers, making it possible firstly to cause the threads of the first and second tapped bores to press against the worm screw, and secondly to cause the band to press against the first and second flanges of the support.