PROBLEM TO BE SOLVED: To provide a sensitivity control mechanism of a gearshift tool in a rice transplanter, which can arbitrarily set the operation sensitivity of the gearshift tool to change the operation sensitivity, and can improve the operability of the rice transplanter.SOLUTION: The sensitivity control mechanism of the speed change pedal 16 (gearshift tool) in the rice transplanter 1 having an engine 5, a continuously variable transmission 21, the speed change pedal 16 (gearshift tool), and a speed change actuator 60 for the speed change control of the continuously variable transmission 21 on the basis of the operation quantity of the speed change pedal 16 (gearshift tool) is characterized by disposing a pedal sensitivity-setting device 89 capable of changing the operation sensitivity of the speed change pedal 16 (gearshift tool).COPYRIGHT: (C)2010,JPO&INPIT【課題】変速操作具の操作感度を任意に設定して操作感度を変更可能にし、田植機の操作性の向上を図ることができる田植機における変速操作具の感度制御機構を提供する。【解決手段】エンジン5と、無段変速装置21と、変速ペダル16(変速操作具)と、変速ペダル16(変速操作具)の操作量に基づいて無段変速装置21を変速制御する変速アクチュエータ60と、を備えた田植機2において、変速ペダル16(変速操作具)の操作感度を変更可能なペダル感度設定器89を備えて、田植機1における変速ペダル16(変速操作具)の感度制御機構を構成する。【選択図】図7
