| 摘要 |
A machine (10) such as an articulated loading shovel, has a working arm (25), the machine (10) including a body part (11) to which a first end (26) of the arm (23) is attached for relative pivotal movement about a first generally horizontal axis (B) and the arm (25) having a second end (32) adapted to mount a working implement (33) for movement relative to the arm (25) about a second generally horizontal axis (D) characterised in that the arm (25) is substantially straight between the first and second ends (26, 32), and is of substantially inverted channel configuration having a top part (40) and a pair of side walls (41, 42) integrally formed, and the arm (25) over at least a major portion of its length between the first and second ends (26, 32) including a strengthening member (80) which extends between and is connected to the side walls (41, 42). <IMAGE> |
