Seat-supporting slides

Claim 1

A seat slide comprising a lower channel section intended to be fixed to the floor of a vehicle, an upper channel section intended to be fixed to the sitting portion of the seat, intermediate members such as balls placed between these two channel sections, and a locking mechanism actuatable by the person sitting in the seat and comprising a toothed belt mounted on the upper channel section and adapted to coact with a series of equidistant catches of the lower channel section, characterized in that it comprises, on the one hand, on one of the two channel sections, a series of equidistant teeth of identical widths whose free end is orientated vertically or at least in a direction very little inclined from the vertical and, on the other hand, on the other channel section, a series of closed apertures adapted to receive the above teeth and which, for the locked positions of the upper channel section, are disposed vertically opposite said teeth in a direction such that any vertical movement upwards of the upper channel section tends to make the teeth go into the apertures, the series of teeth or apertures with which the toothed bolt of the locking mechanism cooperates being that one, of the two series of teeth and apertures considered, which is on the lower channel section or else a series of catches associated with the teeth or apertures of this latter series, the bolt in question being mounted so as to ensure automatically the above mentioned vertical registering between teeth and apertures during each locking.