DISPOSITIVO DI POSIZIONAMENTO PER POLTRONCINE E FINESTRINI, IN PARTICOLARE DI AUTOVEICOLI.

摘要

Position adjuster for the angular or vertical adjustment of a motor vehicle seat or for lifting a window, includes two mount levers connected respectively to a pair of wobble gears controlled by an eccentric; the eccentric is formed of a carrier disk rigidly connected to a rotary shaft and defining a concentric circumferential portion limited by two radially directed abutment surfaces and forming with the center of the shaft an angle of more than 180 DEG ; the eccentric part is formed of two circumferentially movable wedge-like segments urged one from the other by a pressure spring so that during the rest position of the adjuster the segments are in their locking position, in which radial play in bearings and backlash in the teeth of wobble gears is eliminated; during the rotation of the shaft, one of the segments is displaced against the biasing spring and radial play facilitating the manipulation is introduced between the wobble gears.