| 摘要 |
PROBLEM TO BE SOLVED: To provide a clod crush levelling roller device capable of adjusting crush working width in an extending/contracting manner and thereby securing a crop space according to the growth of a crop.SOLUTION: In a clod crush levelling roller, crushing roller frame bodies between left and right roller support brackets are configured as a pair of left and right divided crushing units which have crushing rod groups arranged radially from around left and right bases respectively with free ends thereof directed toward inside in the width direction. Each roller support bracket to which each divided crushing unit is rotatably attached has a joint base member which is attached to a main body stay in the rear end of a beam with the attached position being horizontally movable. Then, an enforcement ring member is used to integrally couple near the middle portion of the clod rod group of the divided crushing unit. Further, one is selected from among a plurality of pin holes formed in the axial direction of the main body stay and is coupled to a pin hole of the joint base member of the roller support bracket, then a lock pin is engaged to the coupled position by a lever. |
