Abstract: The present invention is concerned with a safety device for a motor vehicle ystem. According to the invention, a yieldable structure able to yield under a certain force and essentially in the direction of its application is located between the steering column and the motor vehicle body; moreover, the steering column includes universal joints permitting its deformation, by which the structure can yield in the above-mentioned direction.

Abstract: A safety steering wheel for motor vehicles comprising a central structure ich is fixed to the steering column, a steering wheel rim, a plurality of spokes which connect the central structure to the steering wheel rim and a rigid cover disposed between the rim and the central structure and fixed to the periphery of the latter; the central structure being arranged to yield by flexure and the spokes being arranged to yield during compression of the steering wheel, and a second structure yieldable on compression being fixed to the periphery of the rigid cover.

Abstract: This invention relates to a slack adjustment and take-up device for kinemc couplings of the rack and pinion type, particularly for the steering box of motor vehicles, in which a rotatably supported pinion engages with a rack guided in a translatory manner in the box. The main feature of this invention consists in that a threaded member is screwed into the box to thrust the rack on to the pinion, said threaded member being provided with circumferential markings which form a vernier system with corresponding markings on the box.