PROBLEM TO BE SOLVED: To hardly generate inconvenience that a front/rear one edge side of a side wall body located at an opening position deforms downward by self weight at a maintenance time from an opening while suppressing steep rise in costs.SOLUTION: A combine includes: a threshing frame 12 including an opening 17 in a left side part, the opening having a receiving net 16 and the like face a left outer part of a machine body a side wall body 14 capable of oscillating vertically between a lower side closing position closing the opening 17 and an upper side opening position opening the opening 17 an assist mechanism 25 assisting a manual opening/closing operation of the side wall body 14 and a holding member 26 capable of being switched between a use state fixing and holding the side wall body 14 at the opening position and a non-use state not fixing and holding the side wall body. The assist mechanism 25 is arranged from the threshing frame 12 to a rear edge side part of the side wall body 14 at a rear side position of the machine body with respect to the opening 17. The holding member 26 fixes and holds a front edge side part of the side wall body 14 to the threshing frame 12 at a front side position of the machine body with respect to the opening 17.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2018,JPO&INPIT【課題】コストの高騰を抑制しながら、開口からのメンテナンス時に、開き位置に位置する側壁体の前後一端側が自重で下方に撓む不都合を生じ難くする。【解決手段】コンバインは、受網16などを機体の左外方に臨ませる開口17を左側部に有する脱穀フレーム12と、開口17を閉じる下側の閉じ位置と開口17を開く上側の開き位置とにわたって上下揺動可能な側壁体14と、側壁体14の人為開閉操作をアシストするアシスト機構25と、側壁体14を開き位置に固定保持する使用状態と固定保持しない非使用状態とに切り替え可能な保持部材26とを備え、アシスト機構25は、開口17よりも機体の後側の位置において脱穀フレーム12と側壁体14の後端側部分とにわたって架設され、保持部材26は、使用状態では、開口17よりも機体の前側の位置において側壁体14の前端側部分を脱穀フレーム12に連結して固定保持している。【選択図】図8
