| 摘要 |
PROBLEM TO BE SOLVED: To provide bucket claws for an excavation machine capable of efficiently excavating even a soil lump of sand stone, conglomerate, or the like having an extremelely large excavating resistance and excellent in durability and productivity. SOLUTION: Tapered-off quadrangular pyramidal projections 14, 14 are bifurcately formed at the tips of the bucket claws for an excavation machine, and a groove 17 is longitudinally formed on each side face of each projection 14, 14. The edge 21 of each projection 14, 14 is chamfered flat or curvedly. The angle made by a pair of inside side faces of the projections 14, 14 is more acute than the angle made by a pair of outside side faces of the projections and the outside edges 21b, 21b have a part overhanging the outermost side at the rear end.
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