PROBLEM TO BE SOLVED: To easily and firmly support a support structure of a main transmission lever, in a working vehicle including a tilt type steering handle.SOLUTION: In the structure of the working vehicle, the steering handle is structured to be adjustable in a front-rear direction by a tilt shaft in a lateral direction and a transmission operation groove is arranged to a side (right/left) of the operation handle along the front-rear direction. A main transmission lever for operating a main transmission is supported by the tilt shaft and is movably configured along the transmission operation groove. In the tilt shaft, an advance arm part for advance transmission of the main transmission operable by the main transmission lever and a retreat arm part for retreat transmission of the main transmission are respectively pivoted. A main transmission advance cable for transmitting the main transmission is connected to the advance arm part and a main transmission retreat cable for transmitting the main transmission is connected to the retreat arm part.COPYRIGHT: (C)2011,JPO&INPIT【課題】チルト式のステアリングハンドルを備えた作業車両において、主変速レバーの支持構成を簡単にして強固に支持する。【解決手段】左右方向のチルト軸により操縦ハンドルを前後に調節可能に構成し、該操縦ハンドルの左右一側には変速操作溝を前後方向に沿うように設ける。主変速装置操作用の主変速レバーを前記チルト軸に支持し前記変速操作溝に沿って移動可能に構成し、前記チルト軸には、前記主変速レバーで作動できる主変速装置の前進変速用の前進アーム部、及び、主変速装置の後進変速用の後進アーム部をそれぞれ軸支し、前記前進アーム部には主変速装置変速用の主変速前進ケーブルを連結し、前記後進アーム部には主変速装置変速用の主変速後進ケーブルを連結することを特徴とする作業車両の構成とする。【選択図】図4
