Truck tire washing

An apparatus for washing tires mounted on a vehicle, the tires having tread faces and side walls comprising

• a vehicle supporting frame to support a vehicle as it passes over said frame including a right portion to support right-side tires on a vehicle and a left portion to support left-side tires on a vehicle,
• a plurality of nozzles connected to a pressurized supply of a cleaning liquid and oriented to direct pressurized cleaning liquid toward the tires of the vehicle as the vehicle passes over said frame, said plurality including
• right-side and left-side, upwardly-directed nozzles to direct cleaning liquid upward at a tread faces of right and left tires, respectively as the vehicle passes over said frame, said upwardly directed nozzles being also forwardly directed in the direction of motion of the vehicle as the vehicle passes over said frame and mounted in said frame for reciprocation fore-and-aft in the direction of motion of the vehicle as the vehicle passes over said frame,
• inner and outer laterally-directed nozzles mounted inwardly and outwardly of the left and right tires, respectively, for reciprocation fore-and-aft in the direction of motion of the vehicle as the vehicle passes over said frame, said inner and outer laterally-directed nozzles also being directed toward the respective inner and outer sidewalls of the tire and forward in the direction of motion of the vehicle as the vehicle passes over said frame,
• final rinse nozzles downstream of said upwardly directed nozzles and said laterally-directed nozzles in the direction of motion of the vehicle mounted for pivoting oscillation to spray cleaning liquid against outer sidewalls of the tires, and
• at least one oscillator attached to said upwardly-directed nozzles and said laterally directed nozzle to oscillate said nozzles fore-and-aft in the direction of motion of the vehicle.