PROBLEM TO BE SOLVED: To provide an apparatus for bundling waste straws of a combine harvester, which unloads bundled straws with maintaining fixed intervals even when increasing the treated amount of unloaded straws per unit time of a waste straw release apparatus and rotates a guide rod even without using a complicated electric apparatus.SOLUTION: In the apparatus 10 for bundling waste straws of a combine harvester 1, which bundles and unloads each fixed amount of waste straws conveyed backward by a waste straw conveying apparatus 2 after threshing at the rear part of a machine body, the apparatus 10 includes a bundling rod 11 for receiving waste straws, the guide rod 12 that is arranged above the bundling rod 11 and guides waste straws toward the bundling rod 11 and an opening and closing drive means 13 for opening and closing the guide rod 12 and/or the bundling rod 11. The opening and closing drive means 13 includes a power takeout part 24 that is arranged in the vicinity of the side part of the waste straw conveying apparatus 2 and changes power to convey waste straws to rotation, a reduction mechanism 26 for reducing rotation from the power takeout part 24 and a cam mechanism 50 for rotating the bundling rod 11 and/or the guide rod 12 by the rotation from the reduction mechanism 26.COPYRIGHT: (C)2010,JPO&INPIT【課題】排藁放出装置の単位時間当りの排藁処理量が増加した場合であっても所定間隔を保って集束藁が排出され、複雑な電気機器を用いなくても案内杆の回動が行われるコンバインの排藁集束装置を提供する。【解決手段】脱穀後に排藁搬送装置2によって後方に搬送される排藁を、機体後部で所定量ずつ集束し排出するコンバイン1の排藁集束装置10において、該排藁集束装置10は、排藁を受け止める集束杆11と、該集束杆11の上方に配置されて排藁を集束杆11に向かって案内する案内杆12と、前記案内杆12又は/及び集束杆11を開閉させる開閉駆動手段13とを備え、該開閉駆動手段13は、排藁搬送装置2の側部近傍に配置して、排藁が搬送される力を回転に変換する動力取出部24と、該動力取出部24からの回転を減速する減速機構26と、前記減速機構26からの回転を、前記集束杆11又は/及び前記案内杆12を回転させるカム機構50とを備える。【選択図】図1
