Dust filter bag for household vacuum cleaner, has impact device comprising impact surface, where wall section exhibiting impact surface has higher impact effect than wall section of bag wall that surrounds wall section exhibiting surface

摘要

The bag (1) has an outer bag (2) with an inlet opening (4a), retaining plate (4), and a bag wall, which is designed as a filter wall made of air- permeable filter material. An impact device (5) is arranged opposite to the inlet opening. The impact device has an impact surface, which is designed as part of a wall section of a bag wall of an inner bag (3) arranged in the outer bag. A wall section exhibiting the impact surface has a higher impact effect than the wall section of the bag wall that surrounds the wall section exhibiting the impact surface. The ball wall includes upper wall section, lower wall section of outer bag, separate wall section and a common wall section. The wall section exhibiting the impact surface consists of paper material, thermoplastic foil material and a fleece material.