| 摘要 |
An earth-moving machine comprises an end arm (5) which includes a double slide (5j) for the sliding of a third additional arm (6) provided with an auxiliary thrust cylinder (9) and with rotation spindles (20, 21) for the deformable parallelogram (11, 12, 13). The jib (3) includes means which, on the one hand, provide the longitudinal displacement of the additional arm (6) with respect to the end arm (5) and, on the other hand, control the deformable parallelogram (11, 12, 13) to which the digger bucket (14) is secured. <IMAGE>
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