PROBLEM TO BE SOLVED: To provide a waste straw-treating structure capable of inhibiting locking failure, by performing a simple adaptation on a structure for locking a shredding device as an opened up attitude.SOLUTION: This waste straw-treating structure is provided, by constituting the shredding device for shredding the threshed stalk culms as capable of switching a working attitude for receiving the waste straw and the opening up posture of leaving from a threshing device a locking mechanism R1 for maintaining the device as the opened up posture by installing an engaging lever 17 an engaging recessed part 15a and a short spring 18 for energizing the engaging lever 17, in an engaging direction with the engaging recessed part 15a and the engaging lever 17 and engaging recessed part 15a, as jointly approaching the switching action of the shredding device 9 to the opened up attitude so as to engage the engaging lever 17 with the recessed part to be engaged 15a.COPYRIGHT: (C)2009,JPO&INPIT【課題】 細断処理装置を開放姿勢にロックする構造に簡単な改造を施して、ロック忘れを抑制することが可能な排ワラ処理構造を提供する。【解決手段】 脱穀済み茎稈を細断処理する細断処理装置を、排ワラを受ける作用姿勢と、脱穀装置から離間する開放姿勢とに切り換え可能に構成する。開放姿勢に維持するロック機構R1を、係合レバー17と係合凹部15a、及び、係合レバー17を係合凹部15aとの係合方向に付勢するトーションスプリング18とを設けて構成する。細断処理装置9の開放姿勢への切り換わり作動に連動して係合レバー17と係合凹部15aとが接近し係合レバー17が被係合凹部15aに係合すべく構成してある。【選択図】 図5
