| 摘要 |
<p>Device (1) for suction and collection of the exhaust gases of a vehicle (5), comprising a slotted suction duct (2), at least one carriage (3) which is mobile along guide rails (2a, 2b), with which there is integral one end of a flexible tube (4), by means of which the exhaust gases are sucked from the exhaust pipe (5a) of the vehicle (5); which device is characterised in that there are associated with the drive device (15) of the carriage (3) selective means (18) for locking the drive wheel (14) onto a shaft (21a) which is rotated by the drive device (15), and in that in all the operating steps, the drive wheel (14) is always in purely rolling contact with the relative track (13). <IMAGE></p> |
