US Patent 10259497 Joint system

A joint system for controlling maneuvering of the front wheels of a road vehicle. The joint system has a hollow joint body suitable for connecting to the chassis of a road vehicle and a body opening on a side surface thereof. A rod arm is connected to the joint body such that it is rotationally moved on a first rotation axis and has a rod arm body in the form of a ring, an arm and a rod arm gear in the form of a ring gear. An eccentric bearing member bears the rod arm body in the joint body. An axle is connected to at least one wheel shaft extending outward from the body opening and has an axle body located in the joint body and rotates on a second rotation axis parallel to the said first rotation axis.