System for exhausting and collecting gases, in particular motor vehicle exhaust gases in assembly or factory halls

Abstract

A system serves for exhausting and collecting gases, in particular motor vehicle exhaust gases in an assembly or factory hall. A stationary slotted exhaust conduit (18) is provided on one face with an elastic, axial lip seal for guiding in sealed relationship a suction nozzle of at least one carriage (16) which can be moved in the axial direction along guide sections (41). The suction nozzle is connected to a hose and a vacuum is generated in the slotted exhaust conduit (18) through an exhauster. In order to avoid excessively high tensile stresses in the hose and to facilitate the return movement of carriages along a path parallel to an assembly belt, the carriage (16) is provided with a drive motor (94) whose power take-off shaft (95) carries a friction wheel (96) which can be brought into engagement with the guide section (41), and the flux of force between the drive motor (94) and the guide section (41) can be separated and closed, respectively, by an electrically switchable coupling element in the form of an electromagnet ( 100).

Dependencies are inferred from the claim text.