| 摘要 |
PROBLEM TO BE SOLVED: To perform efficiently in a small space by a simple constitution, a removal operation of clogged grain culms, when clogging occurs in a grain culm conveyance device of a pretreatment part.SOLUTION: A right conveyance chain 32B reduces a clogging pressure at a confluence part N with a middle conveyance chain 32C by one control lever 135. The right conveyance chain 32B releases clogging at a confluence part M with the right conveyance chain 32B by a release lever 122. The control lever 135 is extended in the conveyance direction downstream side of the right conveyance chain 32B, and is operable from the left lateral side of a pretreatment part, and the release lever 122 is also operable on the same standing position.SELECTED DRAWING: Figure 5 |
