Contitech Luftfedersysteme Gmbh

Contitech Deutschland Gmbh

Reinhard Stahmer

Siegfried Reck

Claus-Lüder Mahnken

Boris Balachonzew

Henrik Einhorn

Martin Meiburg

A roll-off piston is made of plastic for an air spring rolling-lobe flexible member. The roll-off piston and the air spring rolling-lobe flexible member are arranged between a sprung mass and an unsprung mass. The roll-off piston includes a first piston part; a second piston part connected to the first piston part; and, the first and second piston parts being made of a layered composite material of alternating layers of plastic and elastomeric material.

Roll-off piston for an air spring rolling-lobe flexible member

An air spring for commercial vehicles includes a rolling-lobe flexible member which is made of an elastomeric material and which at one end thereof is fastened to a first attachment part and at the other end thereof is fastened to a second attachment part in the form of a roll-off piston. The ends of the rolling-lobe flexible member each have a fastening bead which is reinforced in each case by a bead core. At least one of the two bead cores consists of plastic material. In order to achieve greater strength of the fastening bead, the bead core or the bead cores include a multiply-wound, flat profile strip made of glass-fiber-reinforced plastic material.

Air spring for a commercial vehicle including a rolling-lobe flexible member of elastomeric material having ends provided with respective fastening beads

The invention relates to an air spring damper module including a shock absorber () and a roll-off piston () which is pushed over the upper end of the shock absorber with an opening in the piston base with the piston base being supported on the outer tube () of the shock absorber via an annular flange (). A pipe () is centrally fixed to the inner surface of the piston cover () and engages around the shock absorber () in the mounted state and also is supported on the annular flange () of the shock absorber (). The inner surface of the piston cover and the upper closure of the shock absorber are spaced apart by a gap.

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Garbsen, Germany

Reinhard Stahmer