| 摘要 |
The present invention relates to an extracting system for exhaust gases from motor vehicles (5), which is provided with a winch (16) for the transportation of a carriage (2) along an extraction channel (1) and the winding up of a hose (14) to a rest position. The winch has only one line (24) which is arranged to run freely through the extraction channel and through control means (26, 28) and coupling means (35)in the carriage. By this means it is possible to hoist up the hose (14) with the use of just one line for the winding and to secure the hose in its rest position and move the carriage (2) from an end position (6) to a start position (4) by means of said line. |
