Patent ID: 7487957
Filing Date: 2009-02-10
Classification: B60G,F16F

Abstract:
1. A pneumatic spring vibration damper assembly unit for the suspension of wheels and chassis components of motor vehicles, the pneumatic spring vibration damper assembly unit comprising: a roll bellows, with a variable air chamber delimited by said roll bellows; a first assembly unit; a second assembly unit, said roll bellows being arranged between said first assembly unit, which is fixed on the body side and is provided with a vibration damper system, and a second assembly unit, which is fixed to the chassis of the motor vehicle and is able to move together with same; a cylinder tube; a piston; a piston rod, which connects the first, body-side assembly unit and the second, chassis-side assembly unit, and which is accommodated at a body-side free end by means of said piston in an interior space of said cylinder tube of the vibration damper system in a longitudinally displaceable manner, said piston rod being guided longitudinally displaceably within said cylinder tube of said vibration damper system in a drag bearing arrangement, which makes possible angular deflections of the longitudinal axis of the piston rod in relation to said central longitudinal axis of said cylinder tube; and a connecting element fixed to said piston rod and to said piston by means of a ball-and-socket joint each, is arranged between said piston rod and said piston.