| 摘要 |
a) Suction (vacuum) device for roadworks, for sweeping and suction of waste. b) Suction device, characterised by a set of five nozzles (21-25) comprising a central nozzle (21) bordered on each side by two side nozzles (22, 23), themselves bordered by two outer nozzles (24, 25) which can be telescopically adjusted in the direction transverse to the direction of advance (A) of the suction device, - the set of nozzles (21-25) is carried by a support (30) connected to lifting means (68), - each nozzle (21-25) is mounted independently of the others on its support. <IMAGE>
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