FIELD: transport.
SUBSTANCE: inventions group relates to the field of transport and is intended for effective road fencing and smooth return of the vehicle to the road in case of traffic accidents. The first version of the protective roller device contains two lines of protection. The first line of defense is formed by shock-absorbing roller elements coaxially mounted on vertically oriented racks. The second line of defense is formed by horizontally oriented safety beams fixed on racks. Cushioning roller elements are made with a clearance interval between them and with an external shape protruding beyond the outer boundaries of the surface of the safety beams. Safety beams are made with the possibility of deflection. Safety beams are made with the possibility of deflection. The device creates the formation of a tangential mode of motion of the vehicle. The second version of the protective roller device contains three lines of protection. The third line of protection is made under the lower safety beams and includes at least one additional safety beam fixed on each rack, and shock-absorbing roller elements made with a greater mass than the shock-absorbing roller elements of the first line of protection.
EFFECT: increased reliability, improved holding and returning functions, smooth return of the vehicle to the road, synergistic effect of the protective lines of the device, compensation of the impact of the vehicle and maximum braking of the vehicle, reduction of the possibility or elimination of the rebound of the vehicle from the device.
108 cl, 47 dwg, 4 tbl
