PROBLEM TO BE SOLVED: To effectively cushion and absorb vibration transmitted from a drive type ground implement to a tractor body, and to improve comfortableness of an operator.SOLUTION: The drive type ground implement is mounted through a connecting device 3 to the rear of the tractor body 2, and a vibration absorbing member 51 having the grounded lower end thereof is provided in the connecting device 3 so as to cushion the transmission of the vibration by the ground reaction force of the drive type ground implement through the connecting device 3 to the tractor body 2. The vibration absorbing member 51 is provided with an elastic plate 54 in which the ground contact part side thereof is composed of spring steel and curved and formed into a downward protruding ridge from the front end to the rear end.COPYRIGHT: (C)2011,JPO&INPIT【課題】 駆動型対地作業装置からトラクタ車体に伝達される振動を効果的に緩和吸収することができて、オペレータの居住性を良好になし得るようにする。【解決手段】 トラクタ車体2の後部に連結装置3を介して駆動型対地作業装置を装着しており、駆動型対地作業装置の対地反力による振動がトラクタ車体2に前記連結装置3を介して伝達されるのを緩和するように、前記連結装置3に、下端部が接地される振動吸収部材51が設けられ、該振動吸収部材51はその接地部側にバネ鋼で構成されかつ前端から後端にかけて下向き凸条に湾曲形成された弾性板54を有している。【選択図】図1
