Articulated fitting for seats with adjustable backrest, in particular motor vehicle seats

In an articulated fitting for seats having an adjustable backrest, in particular motor vehicle seats, in which a stationary articulated part associated with the seat part and a swivelable articulated part associated with the backrest are connected with one another via a swivel axle, wherein an adjusting and fixing device is provided which determines the position of both articulated parts relative to one another and is constructed as a gear unit and the swivel axle has an eccentric portion for supporting one articulated part, which eccentric portion is formed by two wedge segments which embrace a portion of a driver of the swivel axle and are inclined relative to one another, by a driver arm engaging between the narrow sides of the wedge segments, and by an energy accumulator which presses apart the wide sides of the wedge segments, wherein the swivel axle of said each articulated fitting has a central receptacle serving to connect with a transmission rod so as to be fixed with respect to rotation relative thereto, which said transmission rod couples the two articulated fittings of a seat with one another, said driver arm taking the form of a ring segment projecting between said wedge segments, said driver being constructed as a bushing having a center which is integrally connected with said driver arm integrated in the driver so as to form one part and is rigidly connected with a cover disk covering the outer side of the articulated region, a torque-transmitting receptacle for the transmission rod being provided in the center of the bushing.