Device for a vacuum cleaner and a dust bag.

摘要

This invention relates to a vacuum cleaner comprising a fan assembly which via a chamber enclosing a dust container communicates with an inlet sleeve (11) for dust laden air. The inlet sleeve is via a hose connected to the nozzle of the vacuum cleaner. The walls of the chamber are provided with guides (12) for a stiff collar (18) being a part of the dust container. The guides extend mainly perpendicular to the axial direction of the inlet sleeve. The vacuum cleaner comprises a flexible inflatable means (16) which is placed about the inlet sleeve (11). Then starting the fan the flexible means (16) is inflated by means of the pressure difference between atmostphere and the chamber thereby preventing dust laden air to flow outside the dust container. The invention also relates to a dust container being provided with a flexible means for the same purpose.