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

摘要

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.

主权项

1. An air spring for a commercial vehicle comprising:
a first attachment part; a second attachment part configured as a roll-off piston; a rolling-lobe flexible member made of an elastomeric material and having a first end and a second end and a first fastening bead disposed at said first end and a second fastening bead disposed at said second end; said first fastening bead having a first reinforcing bead core completely embedded therein; said second fastening bead having a second reinforcing bead core completely embedded therein; said first end of said rolling-lobe flexible member being arranged seal tight on said first attachment part; said second end of said rolling-lobe flexible member being arranged seal tight on said roll-off piston; and, at least one of said first and said second reinforcing bead cores being made of a multiply wound, flat profile strip made of glass-fiber-reinforced plastic with said at least one reinforcing bead core defining a coil of mutually adjacent flat turns.