PROBLEM TO BE SOLVED: To provide a simple coupling structure for coupling an output shaft and an input shaft of power, and to couple them appropriately.SOLUTION: In a work device coupling structure, a power transmission coupling mechanism D is configured independently from a link coupling mechanism C and comprises a suspension supporting member 74 which suspends and supports an output part 70 disposed on a front part of a second universal joint 54 with respect to a vehicle frame 1. The suspension supporting member 74 is configured to, during over-riding advance traveling in which a pair of right and left wheels 4 are caused to ride over the work device 21 from a rear part of the work device 21, position the output part 70 at a fitting position where the output part 70 is fitted with an input shaft 47 upon advance traveling after the front wheels 4 over-rides the work device 21.COPYRIGHT: (C)2014,JPO&INPIT【課題】動力取出軸と入力軸との連結を行うための連結構造を簡易なものとしながら、その連結を適切に行うこと。【解決手段】動力伝達用連結機構Dは、リンク用連結機構Cとは独立して構成されており、車体フレーム1に対して、第2自在継手54の前部に備えられた出力部70を吊り下げ支持する吊り下げ支持部材74を備え、吊り下げ支持部材74は、左右一対の前輪4を作業装置21の後方から作業装置21を乗り越えさせる乗り越え前進走行において前輪4が作業装置21を乗り越えた後の前進走行時に出力部70を入力軸47に嵌合させる嵌合位置に位置させるように構成されている。【選択図】図4
