Nacam

Lemforder Nacam Sa

Bernard Sevault

Laurent Fevre

Bernard Haldric

Gregorio Benedi

Sylvie Baudon Nee Chardon

Jean-Christophe Bodin

Amar Bouguerra

Jean R-Rene Blais

Gerard Le Du

A homokinetic joint for linking a driving shaft and a driven shaft of an automotive steering column for transmission of rotation between the driving shaft and the driven shaft. The joint has two opposite end yokes with a coupling yoke intermediate the two end yokes. The end yokes each have an end hub for linking a respective one of the shafts thereto and branched arms defining a yoke or fork opposite the hub for linking the end yoke to the coupling yoke. Two pivotable cross-pieces link the two end yokes respectively to the coupling yoke for positioning the axes of the shafts for homokinetic transmission of torque. A center ball joint unit has a ball stud and spherical ball fixed on one of the end yokes and a guide carried by the other of the end yokes. A sleeve is disposed in the guide and the ball is disposed in the sleeve. The spherical ball is angularly movable in the sleeve for angular offset variation between the shafts during transmission of torque.

Homokinetic joint having a center ball unit and tubular sleeve with

A steering-column body tube for a motor vehicle is provided from a blank cut-out of a single metal sheet with which is formed two front fixing lugs, two rear fixing lugs, and a tube. The elements of the blank cut-out are rolled over in such a manner as to bring the edges of the tube together to form a tube possessing a front opening and a rear opening at the location of the front and rear fixing lugs. The fixing lugs, together with the tube, are a single part made as one piece. A linkage arm connects a front element of the tube with a rear element of the tube.

Steering-column body tube for a motor vehicle

The lock keeper intended to be mounted on the periphery (11) of a shaft (10) comprises discs (21), each pierced through with a central orifice (210) intended for receiving this shaft (10) in order to stack them on it, and is made integral in terms of rotation with this shaft (10) by means of an interlock (30) consisting of at least one projection (31)/notch (32) pair, of which one is formed in this central orifice (210) and the other is formed on the periphery (11) of this shaft (10), some of these discs (21) being equipped at their edge (211) with at least one indentation (212), these indentations (212) being intended to be aligned longitudinally so as to produce a receptacle (23) for receiving a bolt (12). The invention is used in the motor-vehicle industry.

Keeper for a lock for the rotational blocking of a shaft and its use on

Growing community of inventors

Vendome, France

Bernard Sevault