PROBLEM TO BE SOLVED: To provide a combine harvester in which the contact of a transmission belt that performs the synchronization connection of an engine side and a transmission case side, and the body frame can be avoided by a simple structure.SOLUTION: The combine harvester is characterized as follows. A relay shaft of relay pulleys 63a and 63b is provided at a position biased at an upper side from a virtual line L1 that connects an output shaft of an engine 60 and an input shaft of a transmission case 7, a belt transmission mechanism 62 including a first transmission belt 62a hung between an output pulley 61a provided at the output shaft and the relay pulley 63a, and a second transmission belt 62b hung between an input pulley 70a provided at the input shaft and the relay pulley 63b is hung over the input pulley 70a and the output pulley 61a exceeding a front end position of a body frame, and a tension pulley 66 is performed with pressure welding at an upper side of the first transmission belt 62a and the second transmission belt 62b.COPYRIGHT: (C)2013,JPO&INPIT【課題】エンジン側とミッションケース側との連動連結を行う伝動ベルトと車体フレームとの接触を簡単な構造で避けられるようにする。【解決手段】エンジン60の出力軸とミッションケース7の入力軸とを結ぶ仮想線分L1よりも上側に偏倚した位置に中継プーリ63a,63bの中継軸を設けて、出力軸に設けた出力プーリ61aと中継プーリ63aとに掛張される第1伝動ベルト62aと、入力軸に設けた入力プーリ70aと中継プーリ63bとの間に掛張した第2伝動ベルト62bとによって構成されるベルト伝動機構62を、車体フレームの前端位置を越えて入力プーリ70aと出力プーリ61aとに亘って掛張し、テンションプーリ66を第1伝動ベルト62aと第2伝動ベルト62bとの上側に圧接してある。【選択図】 図9
