Patent ID: 7958657

Claim:
A structure for connecting a work machine to a working vehicle, comprising: an insertion-target member of one of the working vehicle and the work machine, the insertion-target member having a hole; a guide member of the other of the working vehicle and the work machine, the guide member having a hole to be placed to coincide to the hole of the insertion-target member, and having a surface surrounding the hole of the guide member; a connection pin having first and second axial ends opposite to each other in the axial direction thereof, wherein the first axial end of the connection pin is adapted to be inserted into the hole of the insertion-target member through the hole of the guide member for connecting the work machine to the working vehicle; and a U-shape bent member having a pair of tips, a middle portion defined as a curved portion of the U-shape thereof, and a pair of parallel linear portions extending between the middle portion and the respective tips, wherein the parallel linear portions are fixed on an outer peripheral side surface of the connection pin so as to extend in the axial direction of the connection pin, so that the tips are disposed on the outer peripheral surface of the connection pin between the first and second axial ends of the connection pin, and so that the middle portion is disposed outward from the second axial end of the connection pin, whereby, when the first axial end of the connection pin is inserted into the insertion-target member, the tips of the U-shape bent member come into contact with the surface of the guide member so as to axially locate the connection pin.