TRACTIVE COUPLER FOR TOWING VEHICLE Russian patent published in 2000 - IPC

FIELD: mechanical engineering; aircraft ground servicing. SUBSTANCE: proposed tractive coupler includes towing vehicle, tow bar connected with frame of towing vehicle with grip fitted on its free end; this grip is engaged with front leg of aircraft undercarriage. Device is provided with additional grip secured on two bar and engaged with front leg of aircraft undercarriage. Tow bar is made in form of frame and is connected with front leg of aircraft undercarriage at two points located at various heights by means of quickly connected grips; tow bar is connected with towing vehicle through guide whose movable part is provided with spherical support engaged with lever which is swivel in horizontal plane and is provided with controllable stops. Mounted in parallel with guide are hydraulic rams; additional hydraulic cylinder is mounted between tow bar and bumper of towing vehicle by means of ball joints. Additional loading of towing vehicle with additional coupling weight may be made within and without reference perimeter. EFFECT: improved tractive and coupling properties of working vehicle. 2 cl, 5 dwg