Lehneneinstellbeschlag für Sitze mit verstellbarer Rückenlehne, insbesondere Kraftfahrzeugsitze

摘要

Articulated fitting for seats having an adjustable backrest, in particular motor vehicle seats. The articulated fitting has an articulated part which is stationary with respect to the seat part and a swivelable articulated part associated with the backrest, these articulated parts being connected with one another via a swivel axle. The position of the two articulated parts relative to one another is determined by an adjusting and fixing device constructed as a gear unit. The swivel axle has an eccentric portion which is formed by two wedge segments which embrace a driver of the swivel axle, by a driver arm engaging between the narrow sides of the wedge segments, by an energy accumulator which presses apart the wide sides of the wedge segments and possibly by a centering segment arranged adjacent to the latter. The swivel axle has a central receptacle serving to connect with a transmission rod so as to be fixed with respect to rotation relative thereto. In order to achieve a reduction in structural component parts and an angular movability between the swivel axles of the articulated fittings on both sides and the transmission rod so as to compensate for alignment defects, the driver is constructed as a bushing which is connected with the driver arm integrated in the driver and with a cover disk covering the outer side of the articulated region and has a torque-transmitting receptacle for the transmission rod, this receptacle being constructed as a conical bore hole.