Implement connecting coupling mechanism

Claim 1

A coupler for connecting a prime mover to an implement, comprising a coupling frame adapted to be mounted on a part of said prime mover, said frame having side rails and top and bottom beams; bearing sleeves, oriented substantially parallel to said beams, supported by said side rails; latch pins journaled for reciprocation in said bearing sleeves, said latch pins having tapered outer ends directed outboardly of the side rails and adapted to project beyond said side rails in one position of their reciprocal travel; a prong mounted in the center of said top beam, said prong having a rounded top surface and a shank, and means for selectively adjusting the height of said rounded top surface of the prong with respect to axis of travel of the latch pins; and an implement assembly mounted on said implement and including an implement frame having side wings each carrying a socket with a bore tapered complementarily to and positioned to receive one of the latch pins of the coupling frame, and a receptacle mounted on said implement frame in a position to receive the prong of the coupling frame, said receptacle having a central seat, shaped complementarily to seat said rounded top surface of the prong, and divergently sloping front and side walls.