TOWED VEHICLE Russian patent published in 2008 - IPC B62D53/08 

FIELD: transportation.

SUBSTANCE: towed vehicle contains body, frame, dolly with pivotally connected towing beam and rolling circle consisting of upper fixed and lower movable rings. Towing beam at one end is pivotally connected to two rods spring-loaded by compression springs relative to dolly frame. At the other end the towing beam is connected via ball bearing to link moving in support rigidly connected to the frame of the said dolly. Dolly contacts with cam surfaces of bracket rigidly connected to internal generating surface of rolling circle ring.

EFFECT: increase in dynamical stability of combination vehicle towed units.

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