Bellows for protection of transmission joint

Abstract

Bellows (10) for the protection of parts of a transmission joint (40), wherein the bellows (10) is in the form of a hollow tubular body that is open at each of its ends and has a fastening region (21;22) at each of its open ends. The two fastening regions (21;22) have cross-sections with different outer diameters and run essentially in parallel to a longitudinal axis (X) of the bellows (10), and these end side fastening regions (21;22) are interconnected by a deformable wall (30) that runs transverse to the longitudinal axis (X) of the bellows (10), wherein the deformable wall (30) forms at least one fold (32) between the two fastening regions (21;22). Thereby, a first fastening region (21) with the larger outer diameter D is extended in the direction of a second fastening region (22) with the smaller outer diameter d by means of a circumferential extension section (50) with a circular free edge (51) and the deformable wall (30) is connected to this extension section (50) at a first connection line (60) which is located before the free edge (51) of the extension section (50). The outer surface of the extension section (50) is straight at least between the first connection line (60) and the free edge (51).

Dependencies are inferred from the claim text.