PROBLEM TO BE SOLVED: To integrate a cutting elevating cylinder with a spring for energizing the cutting elevation to decrease the number of parts and inexpensively achieve a combine harvester, and to facilitate installation onto a machine body.SOLUTION: A combine harvester includes: a cutting elevating cylinder (22) including a cylinder tube (20) and a piston rod (21), which is provided between a cutting part (4) capable of elevating to a vehicle body and the vehicle body (1) side wherein a spring (25) for energizing the cutting part (4) to the rising side is externally fitted to the outer peripheral part of the cutting elevating cylinder (22) the rear end of the spring (25) is held on the cylinder tube (20) side, and the front end of the spring (25) is held on the piston rod (21) side. The front end and the rear end of the spring (25) are respectively held by flange type holding plates (26a, 26b) each having a diameter larger than the outside diameter of the spring (25).COPYRIGHT: (C)2014,JPO&INPIT【課題】刈取昇降シリンダと刈取上昇付勢用のスプリングを一体化し、部品点数を少なくして安価に実施できると共に、機体に対する組み付けも容易に行なえるものとする。【解決手段】車体に対して昇降可能な刈取部(4)と車体(1)側との間に、シリンダチューブ(20)とピストンロッド(21)からなる刈取昇降シリンダ(22)を設けたコンバインにおいて、刈取昇降シリンダ(22)の外周部には、刈取部(4)を上昇側に付勢するスプリング(25)を外嵌し、スプリング(25)の後端側をシリンダチューブ(20)側に保持し、スプリング(25)の前端側はピストンロッド(21)側に保持する。また、スプリング(25)の前端側及び後端側を、スプリング(25)の外径よりも大径の鍔型の保持プレート(26a,26b)で夫々保持する。【選択図】 図2
