BLADE UNIT FOR ROOT REMOVAL， AND ATTACHMENT FOR ROOT REMOVAL USING THE SAME

PROBLEM TO BE SOLVED: To provide a blade unit for root removal specialized in a root removal work comprising two works that are root cutting and root digging， and an attachment for root removal using the same. SOLUTION: In a blade unit 3 for root removal， two pieces of blade plates 31 with a same shape erected from a base 2 at a prescribed interval in a face-to-face state face-joined at a tip portion， and multiple sharp corner portions 33 are formed in the whole or a part including the tip portion of marginal edges configured to be an excavation side of each blade plate. A surface shape of the blade plate is configured so that the tip portion has an acute angle， a marginal edge at an opposite side to the excavation side is formed to be a convex curved line shape toward the tip portion， and a center of an attaching side to the base and a tip center of the blade plate are offset. An attachment 1 for root removal is configured with respect to the base configured so as to be mounted to a tip portion of an arm of a hydraulic shovel in a state that the marginal edges of each blade plate of a plurality of the blade units 3 that are the excavation side face in the same direction， and face sides of the blade plates face with each other. SELECTED DRAWING: Figure 1