| 摘要 |
PROBLEM TO BE SOLVED: To provide a combine-harvester capable of suppressing a grain culm from falling from between a feed chain and a clamping lever even if a clogging grain culm is removed.SOLUTION: A combine harvester 1 is provided with a feed chain drive mechanism 9. The feed chain drive mechanism 9 is equipped with a drive sprocket, a rear end side support rail 107, a follower sprocket 95b and a stationary displacement portion 108. The drive sprocket drives a feed chain 96 rotationally. The rear end side support rail 107 supports the rear end portion of the feed chain 96, and is made rotatable on the turn of a front end portion 107a. The follower sprocket 95b meshes with the rear end portion of the feed chain 96, and is rotatably supported by the rear end side support rail 107. The stationary displacement portion 108 enables the rear end side support rail 107 to displace over the supporting position, at which the stationary displacement portion 108 supports the rear end portion of the feed chain 96, and the non-supported position, at which a rear end portion 107b drops from the supporting position. |
