Patent ID: 9738321
Date: 2017-08-22
CPC Classifications: A01G,B60G,B60P,B60Y,B62D

Claim:
1. An arrangement for enabling rotation movement between a tandem or caterpillar axle and a body of a vehicle, wherein the vehicle comprises at least two body parts connected to each other by a body joint, a body part is provided with a tandem or caterpillar axle, at least one body part comprises a main body and an auxiliary body connected to it to rotate around the longitudinal axis of the vehicle or an essentially parallel axis thereto, whereby the auxiliary body is arranged to the main body with a rotating joint, and the tandem or caterpillar axle is connected substantially rigidly to said main body, and the body part has at least one actuator to control the relative rotation movement of the main body and auxiliary body in such a manner that changes in the position and motion status of the auxiliary body especially in relation to the rotation around the longitudinal axis of the vehicle are arranged to cause in the actuator a pushing or pulling motion that steers the auxiliary body to a rotation movement for the purpose of arranging the auxiliary body to a substantially horizontal position, wherein the auxiliary body is arranged to the main body via substantially parallel crosswise structures in them such that at least two flanges extend from the auxiliary body against crosswise walls in the main body, wherein said crosswise walls and flanges are attached to each other by bearing systems forming rotating joints, whereby wherein the bearing systems are at a distance from each other in the direction of the longitudinal axis of the vehicle to permit their relative rotation in relation to this longitudinal axis, and wherein the rotation axis of the rotating joint is arranged to be substantially congruent with the rotation axis of the body joint.