PROBLEM TO BE SOLVED: To provide a riding-type working vehicle equipped with a holding mechanism capable of holding an accelerator operation tool in a desired operation position that is configured so that a stop during travelling at a high speed, in particular, can be appropriately performed.SOLUTION: A riding-type working vehicle includes: an accelerator operation tool 37 that operates an accelerator of an engine and is operated artificially a holding mechanism 41 capable of holding the accelerator operation tool 37 in a desired operation position and a stop operation tool 38 that stops the travelling of a machine body and is operated artificially. So that an operation of the stop operation tool 38 to a stop side is mechanically transmitted to the accelerator of the engine to cause the accelerator of the engine to be operated to a low speed side by the operation of the stop operation tool 38 to a stop side, a linkage mechanism 57 is provided that mechanically links the stop operation tool 38 to the accelerator of the engine.COPYRIGHT: (C)2015,JPO&INPIT【課題】アクセル操作具を所望の操作位置に保持可能な保持機構を備えた乗用型作業車において、特に高速での走行時の停止が適切に行われるように構成する。【解決手段】エンジンのアクセルを操作するもので人為的に操作されるアクセル操作具37、アクセル操作具37を所望の操作位置に保持可能な保持機構41、機体の走行を停止させるもので人為的に操作される停止操作具38を備える。停止操作具38の停止側への操作をエンジンのアクセルに機械的に伝達して、停止操作具38の停止側への操作によりエンジンのアクセルが低速側に操作されるように、停止操作具38とエンジンのアクセルとを機械的に連係する連係機構57を備える。【選択図】図7
