Abstract: A combined spring/damper system for the support of wheel suspensions or axles on a vehicle body, with a tubular concertina which is mounted between an outer bell and a rolling piston and the meniscus of which is guided on a cylindrical inner-wall region of the outer bell and a cylindrical outer-wall region of the rolling piston. The outer bell or the rolling piston of the displacer is supported between the vehicle body and the chassis in at least one articulated support. The concertina space is filled with a fluid and communicates with a hydraulic accumulator mounted on the chassis side or on the vehicle-body side. Thus, a combined spring/damper system is provided, which includes a low-friction and virtually maintenance-free displacer.

Abstract: A double rolling-lobe flexible member spring arrangement (2) includes two coaxial spring components (4a and 4b) which are arranged opposed to each other. The spring components essentially each include a rolling-lobe flexible member (6a and 6b) and respective roll-off pistons (8a and 8b). The two rolling-lobe flexible members (6 and 6b) define a common double rolling-lobe flexible member (6) and the two spring components (4a and 4b) have a common outer jacket (10). A reliable effective fixing of the flexible member (6) to the inner side of the outer jacket (10) is ensured. To provide this fixation, the double rolling-lobe flexible member (6) has a support ring (14) lying centrally on the inner side thereof and this support ring has a radial recess (16) on its periphery. The outer jacket (10) has a peripherally-extending raised portion at its inner periphery which engages into the recess (16) of the support ring (14) and defines a clamp contour.

Abstract: A combined spring-and-shock-absorber system for supporting wheel suspensions or axles on a vehicle body has a tubular roll bellows (U-bellows) arranged between a wheel-bearing or wheel-controlling connection and a connection on the vehicle body side, the bellows being arranged between an outer bell and a rolling piston, the outer bell and the rolling piston, in each case, having at least partially varying diameters over the height of the corresponding component, and having walls that contact the tubular roll bellows. Both ends of the tubular roll bellows being sealingly secured on the rolling piston at segments having different diameters, the lower mounting section having a larger diameter than the upper mounting section. For this purpose, a tubular roll bellows is used, which is configured as a differential roll bellows, whose interior is filled with a fluid and communicates with a hydraulic accumulator supported on the chassis and/or vehicle body.

Abstract: The sleeve-shaped rolling-lobe flexible member (4) of a rolling-lobe spring (2) is made of elastomeric material and is provided with a reinforcement layer. The ends of the sleeve-shaped rolling-lobe flexible member (4) include neither beads nor cores. The rolling-lobe flexible member (4) is attached pressure-tightly to a cover (8) functioning as a connecting part and/or to a roll-off piston (10) of the spring (2). This pressure-tight attachment is achieved in that each clamping region (18, 20) of the connecting part (cover 8 and/or roll-off piston 10) is provided with a drawn-in connecting surface having at least one peripherally-extending raised portion (22, 24). Clamp rings (12, 14) are assigned to corresponding clamping regions (18, 20) of the connecting parts (8, 10). The clamp rings (12, 14) have respective peripherally-extending recesses (26, 28).