Again, not really sure how to explain this verbally. But what I'm thinking is vaguely like the laser turret hinges you see out there a lot: one Support-Arm hinges

Basically, take the Rotor Hinge mesh - Cut one "arm" off so that it's asymmetrical. Now instead of putting the typical hinge body - use a rotor head, such that the conveyor face is point away from the support arm.