Patent ID: 8083215

Claim:
An air spring damper module mountable on a chassis of a motor vehicle, the air spring damper module comprising: a shock absorber having, an upper end when in its mounted position in said damper module and including an outer tube having a closure at said upper end; said outer-tube having a lower end attachable to the chassis of the motor vehicle; an annular flange fixedly attached to said outer tube at a predetermined distance away from said upper end; and, a damper rod; a roll-off piston arranged at said upper end of said shock absorber; said roll-off piston including a piston cover having an inner surface facing toward said shock absorber and an outer surface defining a buffer stop surface; an air spring flexible member having an interior and being attached to said roll-off piston and imparting operating forces thereto during the operation of said air spring damper module; said air spring flexible member having a first opening assigned to said roll-off piston and a second opening facing away from said roll-off piston; a closure plate for closing off said air spring flexible member at said second opening thereof; a stop buffer made of elastomeric material and being arranged in said interior of said air spring flexible member above said buffer stop surface and imparting occasionally occurring impact force to said buffer stop surface during operation of said air spring damper module; said roll-off piston having a bottom defining a centric opening; said roll-off piston being pushed over said upper end of said shock absorber with said centric opening; a pipe fixed centrally on said inner surface of said piston cover so as to be disposed in surrounding relationship to said shock absorber and said pipe having a lower end; said bottom of said roll-off piston and said lower end of said pipe both being supported directly on said annular flange attached to said outer tube so as to cause all of said operating forces and said impact force to be transmitted directly into said outer tube and then directly into the chassis via said outer tube; and, said inner surface of said piston cover and said closure of said shock absorber conjointly defining a gap therebetween whereby said closure of said shock absorber remains free of said forces.