US Patent 8016098 Snowthrower belt-driven chute rotation system

Embodiments of the invention provide a belt-driven chute rotation system for a snowthrower having a chute and an engine. The chute rotation system includes a chute rotation mechanism rotating the chute around a first axis of rotation. The chute rotation system includes an actuation mechanism having a belt and at least one pulley. The belt moves substantially continuously when the engine is running. The at least one pulley moves from a first position adjacent to the belt to a second position engaging the belt. The at least one pulley is coupled to the chute rotation mechanism.