Slides for vehicle seats, and to seats fitted with such slides

A vehicle seat slide comprising:

• a stationary longitudinal rail;
• a moving longitudinal rail slidably mounted on the stationary rail;
• a rack of notches carried by the stationary rail;
• a latch mounted to pivot about a first transverse horizontal axis tied to the moving rail and suitable for co-operating with the notches of the stationary rail under the control of a member that is easily accessible for a person sitting on the seat;
• resilient means for continuously urging the latch towards a notch-engaging locking position;
• a longitudinal notched bar secured to the stationary rail;
• a shoe slidably mounted to slide along the bar;
• a catch for locking the shoe and mounted to pivot about a second transverse horizontal axis tied to the shoe and suitable for optionally co-operating with the notches of the bar so as to optionally lock the shoe relative to the bar, said catch including a top hook open horizontally facing towards the front of the seat;
• a rocker pivotally mounted about a third transverse horizontal axis tied to the moving rail, the rocker including a first transverse finger organized to co-operate with a rear end of the shoe, a second transverse finger suitable for co-operating with the hook of the catch, and a heel suitable for co-operating with the latch;
• and
• resilient means for constantly urging the rocker in a first direction towards a first extreme angular position in which firstly the first finger is in a low position for horizontally entraining the shoe, secondly the second finger raises the hook of the locking catch of the shoe into a release position, and finally the heel permits cooperation of the latch with the notches of the stationary rail;
• the slide further comprising servo-control means for causing forward folding down of the seat back to urge the rocker angularly in a direction opposite to the first direction, the rear end of the shoe being suitable for co-operating with the first finger of the rocker and having a downwardly-open V-shaped profile in a longitudinal vertical plane, the V-shaped profile being rearwardly defined by an edge having a direction chosen between a vertical direction and a direction which slopes downwards in a forwards direction, and being forwardly defined by a sloping ramp extending downwards in a forwards direction.