Abstract: A vehicle seat backrest suitable for allowing the attachment of a child seat, the backrest comprising a rigid structure and an anchoring system comprising an anchor rod to permit to a coupling member belonging to the child seat to be anchored on the anchor rod via the rear face of the rigid structure. The anchoring system comprises a rigid plate comprising retention means suitable for retaining the anchor rod by abutment contact when the coupling member of the child seat exerts forces on the said anchor rod.

Abstract: A method of processing measurement signals output from a detection array comprising at least one sensor, for characterizing the state of occupancy of a motor vehicle seat. The method includes a classification operation for classifying the state of occupancy of the seat. The method also includes a correction operation, during which the measurement signal output by the detection array is corrected at least in part for environmental drift relating to temperature and to humidity prior to being analyzed in the classification operation for classifying the state of occupancy.

Abstract: A runner for a vehicle seat, the runner being of the type comprising a male rail (7) and a female rail (6) which define between them at least a first compartment (8) in which rolling bearing elements are disposed to enable said male and female rails to move relative to each other along a longitudinal axis. The runner further comprises at least one shoe (10) received in the first compartment (8) and mounted to slide relative to one of the rails, namely the male rail or the female rail, the shoe comprising at least a first rigid portion (11) having a shape substantially complementary to the shape of the first compartment in order to offer contact zones for contact with the male rail and with the female rail when the runner is subjected to deformation in a first direction.

Abstract: A hinge mechanism comprises a moving cheek-plate having a circular set of teeth and a stationary cheek-plate carrying first and second toothed slugs that slide radially in order to engage the set of teeth. The first slug normally slides without circumferential clearance over the stationary cheek-plate while the second slug slides with clearance between two guides that diverge towards the set of teeth so as to co-operate with them to form two wedge-shaped spaces that receive two wedges projecting from either side of the second slug.