DE1180905B - Display device for the degree of clogging of a vacuum cleaner filter - Google Patents

Display device for the degree of clogging of a vacuum cleaner filter

Info

Publication number
DE1180905B
DE1180905B DES79289A DES0079289A DE1180905B DE 1180905 B DE1180905 B DE 1180905B DE S79289 A DES79289 A DE S79289A DE S0079289 A DES0079289 A DE S0079289A DE 1180905 B DE1180905 B DE 1180905B
Authority
DE
Germany
Prior art keywords
membrane
display device
degree
clogging
vacuum cleaner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DES79289A
Other languages
German (de)
Inventor
Hugo Luederssen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEG Hausgeraete GmbH
Original Assignee
Siemens Elektrogaerate GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Elektrogaerate GmbH filed Critical Siemens Elektrogaerate GmbH
Priority to DES79289A priority Critical patent/DE1180905B/en
Publication of DE1180905B publication Critical patent/DE1180905B/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/19Means for monitoring filtering operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Description

Anzeigevorrichtung für den Verstopfungsgrad eines Staubsaugerfilters Es ist vor allem bei Handstaubsaugern mit verhältnismäßig kleinem Staubraum notwendig, diesen Staubraum oftmals zu entleeren, da die volle Saugleistung nur bei leerem bzw. nur wenig gefüllten Staubraum gewährleistet ist und auch die Kühlung des Motors von dieser Saugleistung, d. h. einem möglichst vollen Luftdurchgang, abhängt. Es sind aus diesem Grunde schon verschiedenartige Anzeigevorrichtungen für den Füllgrad des Stabraumes bzw. den Verstopfungsgrad des Filters vorgeschlagen worden. Eine verhältnismäßig einfache Vorrichtung besteht darin, eine Anzeigekugel in einem abgezweigten Teil des Blasluftstromes je nach Menge des Luftdurchganges mehr oder weniger hoch schweben zu lassen. Diese Anordnung gewährleistet jedoch keine unbedingt sichere Anzeige.Display device for the degree of clogging of a vacuum cleaner filter It is especially necessary for hand vacuum cleaners with a relatively small dust space, To often empty this dust space, as the full suction power is only available when it is empty or only a little filled dust space is guaranteed and also the cooling of the motor of this suction power, d. H. as full a passage of air as possible. It are for this reason different display devices for the degree of filling the rod space or the degree of clogging of the filter has been proposed. One relatively simple device consists in placing an indicator ball in a branched off Part of the blown air flow depending on the amount of air passage more or less high to float. However, this arrangement does not ensure that it is absolutely secure Advertisement.

Ferner sind Anzeigevorrichtungen bekannt, die eine auf den im Saugraum herrschenden Unterdruck ansprechende Membran verwenden. Da dabei Einspannelemente, Federn, Zeiger und sonstige Teile benötigt werden, sind diese Vorrichtungen recht aufwendig.Furthermore, display devices are known which have one on the in the suction chamber Use a membrane suitable for the prevailing negative pressure. Since clamping elements, Pens, pointers and other parts are needed, these devices are right laborious.

Die Erfindung bezweckt die Schaffung einer äußerst einfachen Anzeigevorrichtung unter Verwendung einer Membran und erreicht dies dadurch, daß die Membran als sich mit steigerndem Unterdruck fortlaufend formverändernde, das Anzeigeglied selbstbildende Hutmembran ausgebildet und unmittelbar in eine Ausnehmung im Saugraumgehäuse eingelassen ist. Zweckmäßig ist die Membran mit einem ringförmigen Kragen versehen und mittels dessen selbstdichtend in der Gehäuseausnehmung befestigt.The invention aims to provide an extremely simple display device using a membrane and achieves this by having the membrane as itself with increasing negative pressure continuously shape-changing, the display element self-forming Hat membrane formed and let directly into a recess in the suction chamber housing is. The membrane is expediently provided with an annular collar and means its self-sealing attached in the housing recess.

Es ist also lediglich eine entsprechende C)ffnung im Saugraumgehäuse und die genannte Hutmembran notwendig. Ist der Staubraum leer, das Filter also frei von Staub, dann herrscht ein freier Luftdurchgang durch das Gerät, und die Membran behält ihre normale Form. Mit zunehmender Filterverstopfung durch den eingesaugten Staub entsteht in dem hinter dem Filter, also auf der Gebläseseite befindlichen Teil des Saugraumes ein mit dem Grad der Filterverstopfung sich steigernder Unterdruck, da die angesaugte Luft immer geringer wird. Von diesem Unterdruck wird der Kopfteil der Membran mehr oder weniger nach innen gezogen, so daß man von außen bemerkt, daß der Staubraum gefüllt ist und entleert werden muß.So there is only a corresponding C) opening in the suction chamber housing and the aforementioned hat membrane necessary. If the dust compartment is empty, the filter is free of dust, then there is a free passage of air through the device and the membrane retains its normal shape. With increasing filter clogging by the sucked in Dust is created in the one behind the filter, i.e. on the fan side Part of the suction chamber a negative pressure that increases with the degree of filter clogging, because the sucked in air is getting less and less. The head section is created by this negative pressure the membrane more or less drawn inwards, so that one notices from the outside that that the dust compartment is filled and must be emptied.

Die Zeichnung zeigt ein Ausführungsbeispiel der erfindungsgemäßen Anzeigevorrichtung im Querschnitt. Mit 1 ist das Gehäuse des Staubsaugers, und zwar des Saugraumes desselben, bezeichnet. Dieses Gehäuse besitzt eine runde Ausnehmung, in welche gemäß der Erfindung eine Hutmembran 4 mittels eines ringförmigen Kragens 3 selbstdichtend eingesetzt ist. Diese Hutmembran 4 ändert mit sich steigerndem Unterdruck im Saugraum fortlaufend ihre Form, d. h., der Kopfteil 5 der Membran wird allmählich nach unten, d. h. nach dem Inneren des Saugraumes zu, gezogen. Auf diese Weise kann man an der Form der Membran den Füllgrad des Staubraumes ablesen.The drawing shows an embodiment of the display device according to the invention in cross section. 1 with the housing of the vacuum cleaner, specifically the suction chamber of the same, is referred to. This housing has a round recess into which, according to the invention, a hat membrane 4 is inserted in a self-sealing manner by means of an annular collar 3. This hat membrane 4 changes its shape continuously as the negative pressure in the suction chamber increases, ie the head part 5 of the membrane is gradually drawn downwards, ie towards the interior of the suction chamber. In this way you can read the degree of filling of the dust chamber from the shape of the membrane.

Claims (2)

Patentansprüche: 1. Anzeigevorrichtung für den Verstopfungsgrad eines Staubsaugerfilters unter Verwendung einer auf den im Saugraum herrschenden Unterdruck ansprechenden Membran, d a d u r c h g e -kennzeichnet, daß die Membran als sich mit steigerndem Unterdruck fortlaufend formverändernde, das Anzeigeglied selbstbildende Hutmembran (4) ausgebildet und unmittelbar in eine Ausnehmung im Saugraumgehäuse eingelassen ist. Claims: 1. Display device for the degree of clogging of a Vacuum cleaner filter using a negative pressure prevailing in the suction chamber appealing membrane, d a d u r c h g e - indicates that the membrane as itself with increasing negative pressure continuously shape-changing, the display element self-forming Hat membrane (4) formed and directly in a recess in the suction chamber housing is let in. 2. Anzeigevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Membran mit einem ringförmigen Kragen (3) versehen und mittels dessen selbstdichtend in der Gehäuseausnehmung befestigt ist. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 617 417; deutsches Gebrauchsmuster Nr. 1813 648.2. Display device according to claim 1, characterized in that the membrane is provided with an annular collar (3) and is fastened in the housing recess in a self-sealing manner by means of it. Documents considered: German Patent No. 617 417; German utility model No. 1813 648.
DES79289A 1962-05-04 1962-05-04 Display device for the degree of clogging of a vacuum cleaner filter Pending DE1180905B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES79289A DE1180905B (en) 1962-05-04 1962-05-04 Display device for the degree of clogging of a vacuum cleaner filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES79289A DE1180905B (en) 1962-05-04 1962-05-04 Display device for the degree of clogging of a vacuum cleaner filter

Publications (1)

Publication Number Publication Date
DE1180905B true DE1180905B (en) 1964-11-05

Family

ID=7508086

Family Applications (1)

Application Number Title Priority Date Filing Date
DES79289A Pending DE1180905B (en) 1962-05-04 1962-05-04 Display device for the degree of clogging of a vacuum cleaner filter

Country Status (1)

Country Link
DE (1) DE1180905B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813438A1 (en) * 1977-03-30 1978-10-19 Electrolux Ab VACUUM CLEANER WITH DEVICE TO DISPLAY THE FILLING LEVEL OF THE DUST BAG

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE617417C (en) * 1933-12-31 1935-08-19 Inventia Patent Verwert Ges Installation on vacuum cleaners provided with dust filters or dust bags and a display
DE1813648U (en) * 1959-09-30 1960-06-23 Siemens Elektrogeraete Gmbh DEVICE FOR INDICATING THE Clogged VACUUM CLEANER.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE617417C (en) * 1933-12-31 1935-08-19 Inventia Patent Verwert Ges Installation on vacuum cleaners provided with dust filters or dust bags and a display
DE1813648U (en) * 1959-09-30 1960-06-23 Siemens Elektrogeraete Gmbh DEVICE FOR INDICATING THE Clogged VACUUM CLEANER.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813438A1 (en) * 1977-03-30 1978-10-19 Electrolux Ab VACUUM CLEANER WITH DEVICE TO DISPLAY THE FILLING LEVEL OF THE DUST BAG

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