Dust collector bag e.g. flat bag, for use in vacuum cleaner, has air-permeable dust trap inserts loosely arranged in bag inner space such that inserts are not permanently connected with bag walls or component of bag at any location

摘要

The bag (1) has single- or multi-layered bag walls (2o, 2u) forming an outer side of the bag and sectionally made from an air-permeable filter material. A bag inner space is directly or indirectly enclosed by the bag walls. An intake port (3) is formed in the bag walls, and air-permeable dust trap inserts (7) are loosely arranged in the bag inner space such that the inserts are not permanently connected with the bag walls or a component of the bag, and connected with the walls, at any location. A three-dimensional (3D) structure is designed as knitted fabrics, fabric or non-woven fabric. The insert is designed as a single- or multi-layered flexible and/or resilient 3D structure flat in a stretched state or as a rigid flat 3D structure.