Patent ID: 7288045

Claim:
A swivel arm for a separate accessory unit in an internal combustion engine equipped with belt-driven auxiliary units, comprising: a friction wheel arranged to be in continuous or controlled drive connection with a belt of a belt drive driving a drive wheel of the accessory unit; and a swivel arm coupled on an engine side by a control device which is arranged to hold the friction wheel, the swivel arm being provided with a protective device which is connected to the swivel arm in parts, wherein the swivel arm is formed as a hollow profile, having at a first end a protective housing with a one-piece, integrally molded flat-cylindrical portion providing an essentially closed friction wheel protective device which houses the friction wheel rotationally mounted therein between housing end walls, and at a second end having a one-piece, integrally molded coupling point, and the swivel arm formed as a single unit with the protective housing and the coupling point, is arranged to be assembled over at least one longitudinal partition.