PROBLEM TO BE SOLVED: To reliably stop travelling by applying a parking brake to a travel device at the time of forward/backward neutral of a continuously variable transmission, in a work vehicle that transmits power from an engine to a travel device via the continuously variable transmission.SOLUTION: A transmission for a work vehicle capable of shifting a gear of a travel device 3 to forward/backward gears with a continuously variable transmission 2 is provided with neutral detection means 6 for detecting that main gear shifting means 4 for switching the continuously variable transmission 2 to the forward/backward gears is shifted to a neutral position, and activates a parking brake 8 when detecting neutral with the neutral detection means 6.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】本発明は、無段変速装置を介してエンジンの動力を走行装置に伝動する作業車両において、無段変速装置の前後進中立時に走行装置に駐車ブレーキを効かせて確実に走行を停止させることを課題とする。【解決手段】走行装置３を無段変速装置２で前後進変速可能にした作業車両の変速装置において、無段変速装置２を前後進変速に切り換える主変速手段４が中立位置に変速されたことを検出する中立検出手段６を設け、該中立検出手段６で中立を検出すると駐車ブレーキ８を作動させることを特徴とする作業車両の変速装置とする。【選択図】図１
