PROBLEM TO BE SOLVED: To provide an agricultural machine that eliminates the need for the support of a worker to the rear cover in the replacement work of a gearshift, and has no such a trouble as a gear oil dropping in an unintentional place or is reduced therein.SOLUTION: An agricultural machine 1 includes: an input shaft 16 penetrating through a transmission case 3 in the fore-and-aft direction a gear storage part 11 mounted to the rearward of the transmission case 3, having a rear end of the input shaft 16 inserted from the front, and having an opening part provided at the rearward a rear cover 12 for covering the opening part of the gear storage part 11 and a gearshift 181 installed in the rear end of the input shaft 16 inserted into the gear storage part 11. The agricultural machine 1 also includes a hinge 22 and a turning regulation member 231. The hinge 22 is mounted in the opening part of the gear storage part 11 and below the rear cover 12. A shaft core 24 of the hinge 22 is parallel or substantially parallel to the horizontal direction, and the turning regulation member 231 regulates the turning of the rear cover 12.COPYRIGHT: (C)2015,JPO&INPIT【課題】チェンジギヤの交換作業時に、後部カバーに対する作業者の支持が不要で、ギヤオイルが意図しない箇所に滴下等することが無い又は少ない農作業機を提供すること。【解決手段】ミッションケース3を前後方向に貫通する入力軸16と、ミッションケース3の後部に装着され、入力軸16の後端部が前方から挿入され、後方に開口部を有するギヤ収容部11と、ギヤ収容部11の開口部を覆蓋する後部カバー12と、ギヤ収容部11に挿入された入力軸16の後端部に装着されるチェンジギヤ181と、を備える農作業機1であって、ヒンジ22と、回動規制部材231とを備え、ヒンジ22は、ギヤ収容部11の開口部及び後部カバー12の下方に装着され、ヒンジ22の軸芯24は、左右方向に対して平行又は略平行であり、回動規制部材231は、後部カバー12の回動を規制する、農作業機1。【選択図】図3
