PROBLEM TO BE SOLVED: To effectively reduce digging resistance to a respective component or a traveling vehicle in a tilling operation claw.SOLUTION: The tilling operation claw includes: a chisel 2 arranged at an edge of a digging direction side and a guide plate 3 arranged to be continuously at the edge of an opposite digging direction side of the chisel 2 for guiding the dug soil dug by the chisel 2 to a ground surface direction. The chisel 2 includes a space 2B for reducing digging resistance formed by notching both or either side of the edge of the direction merging with the digging direction toward the direction merging with the digging direction.COPYRIGHT: (C)2012,JPO&INPIT【課題】耕起作業爪における各構成要素及び走行車にかかる掘削抵抗を効果的に軽減する。【解決手段】掘削方向側の端部に配置されたチゼル2と、チゼル2の反掘削方向側の端部に連続するように配置され、チゼル2で掘削された掘削土を、地面方向に案内する案内板3とを備え、チゼル2は、掘削方向と交差する方向側の端部の両方又は一方を、この掘削方向と交差する方向に切り欠いてなる掘削抵抗軽減空間2Bを備えている。【選択図】図2
