AUTOMATIC VEHICLE MOUNTING AND DISMOUNTING DEVICE OF SNOW PLOW

PURPOSE:To simplify the operation of a tightening maintain means and hold connection of plow support body of vehicle and snow plow even if oil leaks in an expansion cylinder which tightens mounting body of snow plow on plow support body due to its action. CONSTITUTION:A clamp member 7 is mounted at both ends of an upper shaft body 9 and a lower shaft body 10 which are supported by a plow support body 4 in which a receive section 5 is provided. It is turned due to elongation of an expansion cylinder 8 which is mounted over both shaft bodies 9, 10, and it tightens mounting body of snow plow. On the other hand, a tightening maintain means 15 is provided over both shaft bodies 9, 10. As a result, turn of both shaft bodies 9, 10 is regulated due to the action of tightening maintain means and tightening of mounting body is maintained, even if oil leaks in the hydraulic system of the expansion cylinder 8.