Abstract: A seat comprising: cushioning made from flexible material comprising a blind cavity, an instrumented unit made from flexible material received inside the cavity, this instrumented unit comprising: an oblong housing, this oblong housing comprising sidewalls that extend mainly toward the inside of the instrumented unit from an entrance situated on one of the side faces of the instrumented unit, this entrance being suitable for allowing an electric device to be inserted into the housing, and the electric device received in its entirety inside this housing.

Abstract: A seat comprising: cushioning made from flexible material comprising a blind cavity, an instrumented unit made from flexible material received inside the cavity, this instrumented unit comprising: an oblong housing, this oblong housing comprising sidewalls that extend mainly toward the inside of the instrumented unit from an entrance situated on one of the side faces of the instrumented unit, this entrance being suitable for allowing an electric device to be inserted into the housing, and the electric device received in its entirety inside this housing.

Abstract: An illustrative device capable of detecting a bearing force includes a support rigid by tension and at least one plate that is elastically deformable by the bearing force from a bent conformation in which the plate exhibits a convex bearing face on which the bearing force to be detected is directly exerted and to a more flattened conformation in which the convex bearing face is more flattened. The illustrative device further includes a spring capable of permanently straining the plate to its bent conformation, a guiding mechanism mounted on the support and capable of guiding the free distal end of the plate in translation along a translation axis at right angles to the direction of indentation, and a sensor capable of detecting a displacement of the free distal end along the translation axis to detect the bearing force.