Abstract: A resilient seat back return device used in two-door vehicles is provided. Between the mobile flange of the articulation and the fixed flange of the same articulation a connection link is pivotally mounted to the sitting portion flange whereby, the connection link is connected by a small helical spring to the module flange of the seat back so that, when the seat back is lowered over the sitting portion, the spring is in an unstressed state while the spring is normally under tension when the seat back occupies an intermediate position and is sufficiently stressed when the seat back is placed in the prolongation of the sitting portion to form a berth, the spring then occupying a position in which it is sufficiently powerful to move up the seat back from the seat. Due to its fixation points a spring of small volume and of short elongation but with a very high pulling force is used.

Abstract: A dish is placed in a circular opening about a spindle comprising a central collar. The dish comprises a ball bearing retained by a cage. There is placed inside the dish, concentrically with respect to the spindle, two half-cams separated at the upper ends thereof by an arcuate spiral spring, while the two half cams have lower portions defining a space in which can move a finger rigidly connected to said central spindle containing an articulation control shaft so to form an assembly. The assembly enables, when mounted, passing over hard points by a displacement of the two half-cams one toward the other while compressing the spring under effect of a thrust imparted by the finger of one of the two half-cams. A casing is rigidly connected to the mobile flange for retaining the aforementioned member assembly while a lower and hollow guide rigidly connected to the fixed flange maintains a lower portion of the casing.

Abstract: A platen is fixed onto an armature of a vehicle door and carries a shaft for rotation of a toothed sector about a first pin. A lower portion of the toothed sector extends in the form of a first toothed half-moon cooperating with a second half-moon mounted on a second pin. The first and second pins support a set of arms and a spindle is rigidly connected to each of the half-moons for driving in rotation each of the arms. The pins have a front face which is inclined and forms an angle with respect to a vertical surface of the platen. The arms are arranged in planes enabling an appropriate guiding in height (lifting and lowering) of a curved glass of the vehicle door.