PROBLEM TO BE SOLVED: To prevent an unintended on-operation of operation clutch, in a working vehicle capable of practicing the mode changeover between an interlocking mode for interlocking the on-off operation of a working machine clutch with the lifting or lowering operation of the working machine or the on-off operation of a traveling clutch, and an independent mode for carrying out the on-off operation of the working machine clutch by the on-off operation of a clutch operation tool.SOLUTION: A controlling apparatus of the working vehicle, capable of practicing the mode changeover between an interlocking mode for interlocking the on-off operation of a working machine clutch with the lifting or lowering operation of the working machine or the on-off operation of the traveling clutch based on the detection of on-off detection means or the detection of a lifting or lowering detection means 53 by detecting the mode changeover operation by a changeover operation tool 56, and an independent mode for carrying out the on-off operation of the working machine clutch by the on-off operation of a clutch operation tool 57, controls the on-operation of the working machine clutch only when the clutch operation tool 57 is kept in an on-operation state and the working machine clutch is changed from an off-state of the working machine clutch to an on-state of the clutch when the mode changeover operation is detected.COPYRIGHT: (C)2010,JPO&INPIT【課題】作業機の昇降作動又は走行クラッチの入切作動に作業機クラッチの入切作動を連動させる連動モードと、クラッチ操作具の入切操作によって作業機クラッチを入切作動させる独立モードとのモード切替を実行できる作業車両において、意図しない作業クラッチの入作動を防止する。【解決手段】切替操作具56によるモード切替操作を検出し、入切検出手段の検出結果又は昇降検出手段53の検出結果に基づき作業機の昇降作動又は走行クラッチの入切作動に作業機クラッチの入切作動を連動させる連動モードと、クラッチ操作具57の入切操作によって作業機クラッチを入切作動させる独立モードとのモード切替を実行できる作業車両の制御装置であって、前記モード切替操作の検出時、クラッチ操作具57が入操作状態であるとともに前記モード切替により作業機クラッチが切状態から入状態になる場合にのみ、作業機クラッチの入作動を規制する。【選択図】図3
