Exhaust hood with automatically switches, the safety clutch moment of rotation of the tender

摘要

The present invention relates to an exhaust device for sucking off fumes, vapour or the like, comprising a housing, wherein the housing has a plurality of openings, through which the vapor, vapour or the like in the housing can be sucked, covers, wherein each opening is associated with a cover, with which the opening is closable, a drive (1) for opening and closing of the openings with the covers and a mechanism (2 to 8) for coupling of the drive (1) with the covers.The mechanism (2 to 8) has at least an automatically torque-switched clutch (c), which is suitable and adapted in the case of a blocking of the covers in the case of the opening or closing of the covers of the drive (1), to decouple.