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Vacuum cleaner filter bag with film in the region of the holding plate

A technology for vacuum cleaners and holding plates, which is applied in the direction of vacuum cleaners, suction filters, household appliances, etc. It can solve the problems of mutual alignment, achieve the effect of improving positioning and improving manufacturing efficiency

Active Publication Date: 2020-12-18
EUROLIFTERS HLDG NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this solution is that several components must be aligned with each other

Method used

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  • Vacuum cleaner filter bag with film in the region of the holding plate
  • Vacuum cleaner filter bag with film in the region of the holding plate
  • Vacuum cleaner filter bag with film in the region of the holding plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] figure 1 A first step of an exemplary method for manufacturing a vacuum cleaner filter bag according to the invention is shown. In this step, for example, two through-holes 1, 2 are punched into the nonwoven sheet, which during the process is machine direction ( figure 1 indicated by the arrow in ) to move step by step. as from figure 1 As can be seen in , the nonwoven element 3 extending in the machine direction remains between the two through holes 1 , 2 . Here, the two through-holes 1 , 2 form a nonwoven-free region comprising the two through-holes 1 , 2 as discontinuous sub-regions. The edges of the area without fleece are formed by the two edges of the through-holes 1 , 2 . The nonwoven element 3 is arranged between two opposite edge portions A, B of the edges of the nonwoven-free region. The nonwoven element 3 is spaced apart from the edges A, B in each case by a subregion of the nonwoven-free region, ie by a through-opening 1 and 2 respectively.

[0070] Af...

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PUM

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Abstract

The invention relates to a vacuum cleaner filter bag comprising a bag wall and a holding plate which is connected to the bag wall. The bag wall has a film region in which a plastic film is arranged, and the film region comprises a first sub-region in which the bag wall is formed solely by the plastic film or in which the plastic film forms the outermost layer of the bag wall. The film region comprises a second sub-region in which the plastic film is overlapped by a nonwoven fabric element (3). The holding plate is connected to the plastic film and the nonwoven fabric element (3), in particularthe holding plate is welded thereto, and the nonwoven fabric element (3) has at least one part (11, 12) which is connected to the bag wall part surrounding the film region.

Description

technical field [0001] The invention relates to a vacuum cleaner filter bag comprising a bag wall comprising a film region provided with a plastic film and a retaining plate connected to the bag wall. Background technique [0002] Such a vacuum cleaner filter bag is known, for example, from EP 3 066 968 . Typically, the plastic film is a transparent film. Thus, the membrane area is transparent, making it possible to visually determine how full the vacuum cleaner filter bag is. It is also known, for example, from DE 20 2005 007 503 and DE 102 24 561 to arrange viewing windows in the form of transparent films in other regions of the bag wall. However, in many vacuum cleaner models, the viewing window in the region of the holding plate has the advantage that it is particularly easy to see through. [0003] In addition to forming transparent areas, membranes are used, for example, to prevent accumulation of filter residue or to reduce wear of the filter material inside the ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47L9/14
CPCA47L9/1436A47L9/1481
Inventor 拉尔夫·赛耶简·舒尔廷克
Owner EUROLIFTERS HLDG NV