| 摘要 |
<p>Machine for cutting structural members such as legs, beams, I-beams or the like for supporting structures made of steel, concrete, steel and concrete, stone-like materials or the like, comprising an endless travelling wire (12) that has suitable cutting parts and at least one cutting segment (112) running around at least two pulleys (16, 16'), and a frame (2) arranged around a structural member (1) to be cut; this machine comprises, in this frame (2), longitudinal tracks (8, 9, 8', 9') on which carriages (17, 18) are positioned so as to be movable along these tracks by suitable actuating means (32, 42, 42', 27, 27', 29), each carriage having at least one of these guide pulleys (16, 16') carrying the cutting segment (112) of the travelling wire (12); these longitudinal tracks (8, 9, 8', 9') are attached at each end to plates (7, 71, T, 71') able to engage via motion means (6, 61) in arcuate guide slots (5, 5') formed in the transverse wall (102, 3, 3') and in the end walls (402, 31, 31') of the frame; and each of these plates (7, 71, T, 71') is provided with suitable actuating means (40, 41, 40', 41', 34, 34', 62) for moving them along these arcuate guide slots (5, 5') in such a way as to raise or lower at least one pair of these longitudinal tracks (8, 9, 8', 9').</p> |
