PROBLEM TO BE SOLVED: To easily remove a grain culm entangled in a threshing part conveyance device to enhance work efficiency of a combine.SOLUTION: The combine includes: a threshing part conveyance device 12 arranged on a side part of a threshing device 3 and conveying a reaped grain culm an upper cover 50D arranged in an upper part of the threshing device 3 and covering an upper side of a threshing cylinder 55 a lock mechanism locking the upper cover 50D at a closing position and a control device 85 which automatically stops an engine 62 and releases locking by the lock mechanism when an operation tool 6D is operated, the operation tool arranged in the periphery of the threshing part conveyance device 12. When the operation tool 6D is operated, driving of a feed chain 12B arranged in the threshing part conveyance device 12 is automatically stopped. Releasing the lock mechanism from being locked causes the upper cover 50D into a semi-opened state.SELECTED DRAWING: Figure 29
