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Fixed plate with centering device

A technology for centering devices and fixing plates, which can be used in household appliances, vacuum cleaners, cleaning equipment, etc., and can solve problems such as negative effects on sealing properties

Active Publication Date: 2022-02-11
EUROLIFTERS HLDG NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This in turn causes a radial displacement of the vacuum cleaner nozzle and the channel opening relative to each other when the vacuum cleaner is switched off, thus negatively affecting the above-mentioned sealing properties

Method used

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  • Fixed plate with centering device
  • Fixed plate with centering device
  • Fixed plate with centering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] figure 1 (a) schematically shows a conventional fixing plate 1 in top view with a passage opening 2 and a sealing element 3 attached to the fixing plate 1 . The vacuum cleaner nozzle 4 is inserted into the channel opening 2 .

[0045] figure 1 (b) shows a sectional view of the fixed plate 1 with the cleaner nozzle 4 at the reference position. It can be seen that the sealing element 3 completely seals off the vacuum cleaner nozzle 4 .

[0046] figure 1 (c) shows the fixed plate 1 in which the inserted vacuum cleaner nozzle 4 has been displaced radially, for example due to the gravity of the aspirated material contained in the vacuum cleaner bag (shown by the arrow pointing downwards). This displacement creates a gap 5 between the sealing element 3 and the cleaner nozzle 4 through which dust can escape from the cleaner bag to the interior of the cleaner.

[0047] figure 2 A schematic structure of an exemplary vacuum cleaner filter bag is shown. The filter bag comp...

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PUM

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Abstract

The invention relates to a fixing plate (7) for a vacuum cleaner filter bag, comprising: at least one sealing element (16); a base plate in which a passage opening (8) is formed; and a centering device (9), which Extending at least partly along the circumference of the passage opening (8), the centering device (9) has at least one first spring element (10) which, under deformation in the radial direction, exerts and The deformation opposes the restoring force.

Description

technical field [0001] The invention relates to a fixing plate for a vacuum cleaner bag. Background technique [0002] Such fastening plates are known in many different forms and have channels or filling openings through which the connection nozzle of the vacuum cleaner can be inserted into the vacuum cleaner bag. Such vacuum cleaner nozzles can have very different diameters. In order to be able to use one fastening plate for different nozzle diameters, elastic seals or sealing rings are usually used. Such seals are usually made of rubber or thermoplastic elastomer (TPE). They can be formed integrally with the retaining plate, or as separate components on or below the retaining plate or in the filter bag. Fixing plates made of cardboard are also known, in which pre-cut sections can be cut out to adapt the diameter of the opening to the vacuum cleaner nozzle. [0003] In particular, a vacuum cleaner bag is known from DE 20 2008 004 025, in which an elastic rubber layer is...

Claims

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Application Information

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