PROBLEM TO BE SOLVED: To constitute a mechanism that surely returns a speed change operation implement of a continuous variable transmission to a neutral position when braking a parking brake.SOLUTION: The parking brake 40 operated by a parking brake pedal 16 is arranged in a transmission case 20, and the constitution variable transmission 21 operated by oscillation with an oscillating shaft 60 of a main speed change lever 14 as a center is arranged in the transmission case 20. There is provided a brake operation part 54 which transmits, to an operation arm 53 of the parking brake 40, a pulling operation force from the rear end 53R of the operation arm 53 which oscillates with a support axial core Y as a center at the operation of the parking brake pedal 16, and also there is provided a neutral operation member 64 which returns the main speed change lever 14 to the neutral position by a pulling operation force from the front end 53F of the operation arm 53.COPYRIGHT: (C)2012,JPO&INPIT【課題】駐車ブレーキの制動操作時には無段変速装置の変速操作具を確実に中立位置に戻す機構を構成する。【解決手段】駐車ブレーキペダル１６で操作される駐車ブレーキ４０を伝動ケース２０に備え、主変速レバー１４の揺動軸６０を中心とする揺動により操作される無段変速装置２１を伝動ケース２０に備えている。駐車ブレーキペダル１６の操作時に支持軸芯Ｙを中心にして揺動する作動アーム５３の後端部５３Ｒからの引き操作力を駐車ブレーキ４０の作動アーム５３に伝える制動操作部材５４を備え、作動アーム５３の前端部５３Ｆからの引き操作力で主変速レバー１４を中立位置に戻す中立操作部材６４を備えた。【選択図】図７
