PROBLEM TO BE SOLVED: To solve problems that the posture of a land grading carrier is destabilized during dumping operation.SOLUTION: The land grading carrier is composed as follows: An L-shaped mounting frame 6 is mounted through a top link 2 and lower links 3 to the rear of a four-wheeled type tractor and the land grading carrier 8 is freely dumpably mounted on the L-shaped mounting frame 6. An engaging hook 22 for engaging with an engaging shaft 21 of the land grading carrier 8 is installed in the L-shaped mounting frame 6 between the L-shaped mounting frame 6 and the land grading carrier 8 to compose a linking mechanism 20. An operation lever 35 for performing engaging and disengaging operation of the engaging hook 22 is mounted on a mounting member 36 which is deviated from the right and the left center of an upper frame 40 of the L-shaped mounting frame 6 to either of the right and the left sides and freely demountably installed. The mounting position of the operation lever 35 can be changed to a position deviated from the right and the left center of the upper frame 40 to the other of the right and the left sides.COPYRIGHT: (C)2009,JPO&INPIT【課題】整地キャリアのダンプ操作時の姿勢が不安定となる。【解決手段】四輪型トラクタの後部に、トップリンク2およびロワーリンク3を介してL型取付枠6を取付け、該L型取付枠6にダンプ自在に整地キャリア8を取付け、L型取付枠6と整地キャリア8との間に、整地キャリア8の係合軸21に係合する係合フック22をL型取付枠6に設けて連結機構20を構成し、係合フック22の係脱操作する操作レバー35はL型取付枠6の上部フレーム40の左右中央より左右いずれか一側に片寄って着脱自在に設けた取付部材36に取付けると共に、操作レバー35の取付位置は、上部フレーム40の左右中央より左右いずれか他側に片寄った位置に変更可能に構成した整地キャリア。【選択図】図4
