| 摘要 |
A blade assembly (10) for an excavating apparatus comprising a front face (1 1), side walls (33, 34), a centre forward edge portion (12), side forward edge portions (13, 14) on either side of the centre forward edge and end forward edges (15, 16) at each distal side of the side forward edges, wherein the end forward edges have bottom edges which are lower that the bottom edge of the centre forward edge. In another aspect, each side wall has a front edge which is behind the forward most edge of the end forward edges and in front of the rearmost portion of the side forward edges. In another aspect the front face comprises a substantially concave centre section (18) and a side gusset portion (19, 20) on each side thereof for directing material outwardly toward the side walls. A method and controller for controlling the blade assembly is also disclosed. |
