(57) A bucket (10), particularly for crushing and screening rubble or similar stony material,
comprising a box-like structure (11) which can be articulated to movement arms of
self-propelled vehicles and is open at a first side (12), which is arranged frontally
with respect to the advancement direction when picking up the rubble, and at a second
side (13), being aligned with the first side, for the exit of the crushed and screened
rubble. A crushing and screening unit (14) is supported inside the box-like (11) structure
and comprises a movable crushing plate (15) being pivoted to a region which is arranged
at the first side (12) and is free to oscillate under the control of actuation/vibration
means (16), the plate forming, together with a wall (17) of the structure (11) which
lies opposite thereto, a hopper whose oputput section can be adjusted, at the second
side, so as to allow the screening of the rubble while it is being crushed, motor
means (18) being provided which are suitable to drive the actuation/vibration means
(16), the arms being suitable to change the box-like structure from a configuration
for picking up the rubble, in which the first side is arranged frontally with respect
to the advancement direction, to a crushing/screening configuration, in which the
first and second sides (12,13) are arranged vertically, the second side (13) being
arranged below so as to allow the rubble being crushed to fall by gravity, and vice
versa.
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