EP0827702B1 - Filtre pour sèche-cheveux - Google Patents

Filtre pour sèche-cheveux Download PDF

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Publication number
EP0827702B1
EP0827702B1 EP97111454A EP97111454A EP0827702B1 EP 0827702 B1 EP0827702 B1 EP 0827702B1 EP 97111454 A EP97111454 A EP 97111454A EP 97111454 A EP97111454 A EP 97111454A EP 0827702 B1 EP0827702 B1 EP 0827702B1
Authority
EP
European Patent Office
Prior art keywords
filter element
filter device
filter
hair
fabric
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.)
Expired - Lifetime
Application number
EP97111454A
Other languages
German (de)
English (en)
Other versions
EP0827702A2 (fr
EP0827702A3 (fr
Inventor
Jürgen BEHRENDT
Hans-Jürgen Golob
Robert Jung
Wilfried Rolf
Boris Wonka
Björn Kling
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.)
Braun GmbH
Original Assignee
Braun 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 Braun GmbH filed Critical Braun GmbH
Publication of EP0827702A2 publication Critical patent/EP0827702A2/fr
Publication of EP0827702A3 publication Critical patent/EP0827702A3/fr
Application granted granted Critical
Publication of EP0827702B1 publication Critical patent/EP0827702B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands

Definitions

  • the present invention relates to a filter device and a method for cleaning Such a filter device for an electrically operated air flow Hair care device, in particular for a hairdryer, a hot air curling brush or the like with a filter element which has an inside and an outside and wherein the inside of the filter element in the region of an air inlet opening of the Device is arranged.
  • Such a filter device is known from EP 0 518 035 B1. This shows you Hair suction filter, which is firmly connected to the device housing Air inlet grille and a removable grille cap is arranged.
  • the filter element itself is made from a woven fabric. To clean the filter element must first removed the mesh cap and then removed the filter element and cleaned or exchanged.
  • Filter devices for air flow devices, especially for hair dryers, are intended to prevent unwanted intrusion Impurities such as hair, fluff, dust or the like, to avoid in the interior of the hair dryer and thus contamination and to prevent possible damage to the hair dryer.
  • a hair dryer is known from US 5,490,336, which is in the air inlet area has a washable foam to keep hair and lint from penetrating to hold in the hair dryer.
  • the object of the present invention is therefore to provide a filter device for an electrical operated air flow hair care device, in particular for one Specify hair dryer, which initially contains a clogging indicator and signals to the user that the filter device is at the earliest possible time to clean. Furthermore, the filter device should be designed so that the cleaning is easy to carry out even by the user.
  • the object is achieved in a filter device described above essentially solved by the characterizing features of claim 1.
  • the filter element as a kind of tissue, perforated film or the like is formed with a relatively small thickness and that of the filter element retained contaminants such as hair, lint or dust essentially be deposited on the outside of the filter element and that the outside of the filter element for the user essentially freely accessible on the Hair care device is arranged.
  • the filter element has a single-layer fabric a ratio of the mesh size to the thread diameter of 80 ⁇ m / 55 ⁇ m to 1200 ⁇ m / 400 ⁇ m. According to the invention, the open air can flow through Area of the filter element approx.
  • Thread thickness or web width less than or equal to 400 ⁇ m. So the required Air flow through the device, especially through a hair dryer as great chosen so that the hair dryer does not overheat.
  • thread thickness or web width an opening size of the filter element specified, which fluff and effectively holds back hair; The smallest dust particles, however, can be the filter element pass and flow through the hair dryer.
  • Contaminants such as hair and lint
  • An additional contamination indicator is therefore advantageous not mandatory. The user recognizes each time the hair dryer is used immediately and clearly the respective degree of contamination of the filter and attention is thus drawn to regular cleaning of the filter element.
  • the filter element is as Screen fabric formed, which consists of threads with a particularly round cross-sectional area consists. On the one hand, this creates a streamlined cross-section of the fabric threads and, on the other hand, easy removal of the impurities made possible by the filter element or the screen fabric without the contaminants can get caught in the filter element.
  • the screen fabric be made of a thermoplastic, such as polypropylene or polyacrylic manufacture.
  • a thermoplastic such as polypropylene or polyacrylic manufacture.
  • PET polyester
  • the use of polyester (PES) has proven particularly advantageous which is a very easy-care, tear-resistant and non-hygroscopic material represent.
  • the screen fabric has a ratio of the mesh size to the thread diameter of approx. 400 ⁇ m / 200 ⁇ m. It can therefore advantageously a single-layer screen fabric can be used, which for example is similar to a hosiery.
  • this consists of a thermosetting Plastic, from natural yarns, metal or from a glass fabric.
  • This can for example, a particularly durable screen mesh or a soft or hard surface for a screen mesh.
  • the filter element is attached to the by a holding means Device housing attachable, with the holding means on the outer, the air inlet opening surrounding edge of the filter element attacks. Since the filter element mostly made a material that is not dimensionally stable on its own, in particular a screen fabric, one Perforated film or the like, which is insufficient on the device housing without holding means can be fastened, this is advantageously carried out by a separate holding means attached to the device housing.
  • the holding means which in particular on the outer Edge of the filter element thus does not reduce the cross-sectional area of the Air inlet opening or does not hinder the air flow through the device.
  • the holding device itself is designed as a clamping ring and / or as a carrier element, which in particular is shaped as a support grid.
  • the filter element can thus advantageously by a clamping ring or a carrier element, in particular a carrier grid to be attached to the device housing alone.
  • it can also be a holder of the Filter element done by a clamping ring and a support grid, these parts together form a filter device. This is particularly advantageous because the Carrier grid is located on the inside of the filter element and thus the filter element is supported by the support grid.
  • the screen fabric between the clamping ring and the Support element in particular the support grid held.
  • a screen mesh can also be replaced individually and between the clamping ring and the support grid a new screen mesh is inserted and held.
  • the screen fabric is over the carrier element, in particular stretched over the outside of the carrier grid and on its outer Edge fastened with the clamping ring.
  • This will be a simple effective attachment of the screen fabric is proposed, which a tight fit of the screen fabric above the support grid and a stable attachment of the fabric on its outer edge between the clamping ring and the support grid.
  • the clamping ring and / or the carrier grid Fasteners which in particular as a bayonet lock, snap hooks, Detents or similar means formed and a releasable connection with the device housing are provided.
  • a device housing for example a hair dryer
  • This is, for example, for wet cleaning or for an exchange a defective filter element is advantageous for the user.
  • clamping ring and / or the carrier grid made of plastic and are inextricably linked to the screen fabric, for example clipped, welded, sprayed or the like.
  • a shedding of the Screen fabric proposed with the clamping ring and the support grid, which a durable, permanent unit of a filter device enables.
  • Filter element consists of a perforated film, which essentially the same already above described functional and structural features, such as Hole size and surface structure as well as free access to the outside of the filter having.
  • the following essentially applies to such a filter element made of a perforated film the same advantages as for the one already described in detail above Mesh.
  • a perforated film it is particularly advantageous if it is made of Metal exists because metal is used for production, for example in an etching or photoresist process of perforated films in large quantities is particularly suitable.
  • a filter device is in a particularly advantageous embodiment of the invention with the aforementioned features with an electrically operated hair care device, in particular a hair dryer, a hot air brush or the like releasable connected.
  • an electrically operated hair care device in particular a hair dryer, a hot air brush or the like releasable connected.
  • Such a filter device can thus be used on a hairdryer attached and by this, for example for the purpose of cleaning or replacement, just be removed.
  • a filter device according to the invention is proposed in one piece with a hair care device, in particular with a hairdryer, connect to.
  • a filter device is advantageously specified, which is permanently connected to a hair dryer and thus the hair dryer during the entire lifespan is safe from the ingress of unwanted contaminants, for example hair or lint, dust or the like in the interior of the hair dryer, successfully protects.
  • a further advantageous embodiment of the invention which also has its own Invention may represent a method for cleaning one described above Filter device proposed.
  • a user will see the impurities deposited on the outside of the filter element in particular due to the color contrast between the outside of the filter element and the contaminants even early displayed after their deposits.
  • the user is thus particularly advantageous As early as possible visually pointed out the pollution.
  • the surface structure of the filter element according to the invention then becomes the user by wiping the contaminants on the outside of the filter element easy way to remove.
  • the contaminants can advantageously be added without additional Tool can be removed by the user, for example wiping with the bare hand, especially with the fingers of one hand of the user.
  • a hair dryer 1 (FIG. 1) essentially consists of a cylindrical housing 2 and a handle part 3 provided thereon.
  • the housing 2 has an air inlet opening 4 and an air outlet opening 5 with mostly round opening cross section and is essentially in the main flow direction 6 from one in the hair dryer flows through generated air flow.
  • a heater 7 In the housing 2 are a heater 7 and Motor 8 is provided for driving a fan wheel 9.
  • a filter device 10 which consists essentially of a support grid 11 1 and a filter element 12, which is a screen or can be designed as a perforated film.
  • the carrier grid 11 has a plurality of grid bars 13 on, a chamber 14 being formed between different bars 13.
  • a heating tube 15 is provided, which its air inlet side is delimited by an air inlet grille 16 with bars 17.
  • a The filter device 10 according to the invention consists of a carrier grid 11 with bars 13, wherein the grid pattern of the carrier grid 11 with the grid pattern of the Air inlet grille 16 substantially coincides.
  • a filter element for example a screen fabric or a perforated film provided which which or which stretched over the bars 13 and to the in Surfaces of the outer side of the carrier grid 11 by a clamping ring 18 is held.
  • a circumferential groove 24 is provided, into which a circumferential nose 19 of the clamping ring 18 engages.
  • the filter element 12 is through the nose 19 in the Fixed groove 24.
  • the air inlet end of a housing 2 for a hair dryer is with a Annular surface 20 provided, on which a filter device according to the invention is placed and can be attached.
  • a locking means 22 is provided, which is arranged in an opening 21 and at his one end is freely movable, so that this in a corresponding opening the filter device can snap.
  • an air inlet grille 16 is provided with grille bars 17, these being star-shaped arranged, radially extending rods run in concentrically arranged rings. Individual bars 14 are formed by these bars 17 and rings, which are flowed through by the air flow.
  • In the middle of the air inlet grille 16 is one Washer 23 provided.
  • a filter element for example, in the form of a sieve mesh, can be applied directly placed the outside of the air inlet grille 16 and through on its outer surface a clamping ring can be held.
  • the thickness of the filter element is dimensioned so small that impurities deposited essentially on the outside of the filter element and especially because of the small thickness not in the filter element can get caught.
  • the mesh size of the screen fabric is advantageously between 80 and 1200 microns and the thread diameter between 55 and 400 microns, but especially in the dimensions mentioned below, so that the Ratios of mesh size to thread diameter already given.
  • a particularly preferred embodiment of a filter device according to the invention is also known a sieve made of polyester (PES), which has a ratio of mesh size to thread diameter of 400 ⁇ m / 200 ⁇ m and an open air flow Area of 44%.
  • the fabric thickness is 370 ⁇ m, so that the surface structure, in particular the surface roughness of the fabric is such that those retained by the filter element and on the outside of the filter element adhering contamination, such as hair or lint visually by the user easily recognizable and by simply wiping without effort and without additional Tool easily by a user from the outside of the filter element are removable.
  • the webs of such a perforated film preferably having a width of greater than or equal to 180 microns and the film a thickness of greater than or equal to 580 microns having.

Claims (21)

  1. Dispositif de filtre pour un appareil de traitement et de soin des cheveux fonctionnant électriquement et pouvant être traversé par de l'air, notamment pour un sèche-cheveux, une brosse de bouclage à air chaud ou analogue, comportant un élément filtrant possédant une face intérieure et une face extérieure, le côté intérieur de l'élément filtrant étant disposé dans la zone d'une ouverture d'entrée d'air de l'appareil, caractérisé en ce que l'élément filtrant (12) en tant que tissu formé d'une seule couche possédant un rapport largeur de maille/diamètre du fil compris entre 80 µm/55 µm et 1200 µm/400 µm ou en tant que feuille perforée, dont la surface, qui peut être traversée par l'air, est comprise entre environ 30 et 60 % de la totalité de la surface, atteinte par l'écoulement, de l'élément filtrant (12) ou dont les barrettes possèdent une largeur ≤ 400 µm, est réalisé avec une faible épaisseur de sorte que les saletés, qui sont retenues par l'élément filtrant, telles que des cheveux, des floques ou des peluches, de la poussière et analogues, se déposent essentiellement sur la face extérieure de l'élément filtrant et que la face extérieure de l'élément filtrant est disposée, pour l'utilisateur, de manière à être essentiellement librement accessible sur l'appareil de traitement des cheveux.
  2. Dispositif de filtre selon la revendication 1, caractérisé en ce que l'élément filtrant est agencé sous la forme d'un tissu de tamisage (12) et est constitué par des fils, qui possèdent notamment une surface circulaire en coupe transversale.
  3. Dispositif de filtre selon la revendication 1 ou 2, caractérisé en ce que le tissu de tamisage est constitué par une matière thermoplastique, comme par exemple du polypropylène PP, une résine polyacrylique PA, notamment du polyester PES ou analogue.
  4. Dispositif de filtre selon l'une des revendications précédentes, caractérisé en ce que le tissu de tamisage (12) possède un rapport de la largeur de maille au diamètre du fil égal à 400 µm/200 µm.
  5. Dispositif de filtre selon la revendication 1, 2 ou 4, caractérisé en ce que le tissu de tamisage (12) est formé d'une matière plastique durcissable, des fils naturels, un métal ou tissu de verre.
  6. Dispositif de filtre selon l'une des revendications précédentes, caractérisé en ce que l'élément de filtre (12) comporte, au moins sur la face extérieure (26), une couleur sombre, notamment noire ou anthracite.
  7. Dispositif de filtre selon l'une des revendications précédentes, caractérisé en ce que l'élément de filtre (2) peut être fixé par un moyen de retenue sur le boítier (2) de l'appareil et que le moyen de retenue s'applique sur le bord extérieur, qui entoure l'ouverture d'entrée d'air (4), de l'élément de filtre (12).
  8. Dispositif de filtre selon l'une des revendications précédentes, caractérisé en ce que le moyen de retenue est une bague de serrage (18) et/ou un élément de support, notamment une grille de support.
  9. Dispositif de filtre selon l'une des revendications précédentes, caractérisé en ce que le tissu de tamisage (12) est retenu entre la bague de serrage (18) et l'élément de support, notamment la grille de support (11).
  10. Dispositif de filtre selon l'une des revendications précédentes, caractérisé en ce que le tissu de tamisage (12) est tendu au-dessus de l'élément de support, notamment sur la face extérieure de la grille de support (11) et est fixé sur son bord extérieur avec la bague de serrage (18).
  11. Dispositif de filtre selon l'une des revendications précédentes, caractérisé en ce que la bague de serrage (18) et/ou la grille de support (11) comportent des moyens de fixation, notamment un système de fermeture à baïonnette, des crochets d'encliquetage, des becs d'encliquetage ou analogues, pour établir une liaison amovible avec le boítier (2) de l'appareil.
  12. Dispositif de filtre selon l'une des revendications précédentes, caractérisé en ce que la bague de serrage (18) et/ou la grille de support (11) sont réalisées en matière plastique qui sont reliées d'une manière inamovible au tissu de tamisage (12), par exemple par agrafage, soudage, moulage par injection ou analogue.
  13. Dispositif de filtre selon l'une des revendications précédentes, caractérisé en ce que l'élément de filtre est agencé sous la forme d'une feuille perforée (12) et est constitué par des barrettes, qui possèdent notamment une surface en coupe transversale essentiellement circulaire.
  14. Dispositif de filtre selon la revendication 13, caractérisé en ce que la feuille perforée (12) et réalisée en un métal.
  15. Dispositif de filtre selon la revendication 13, caractérisé en ce que la feuille perforée (12) est formé par une matière plastique ou un tissu de verre.
  16. Dispositif de filtre selon la revendication 13, 14 ou 15, caractérisé en ce que la feuille perforée possède une épaisseur inférieure ou égale à 600 µm.
  17. Appareil de traitement et de soin des cheveux fonctionnant électriquement et pouvant être traversé par de l'air, notamment sèche-cheveux, brosse de bouclage à air chaud ou analogue, caractérisé en ce qu'un dispositif de filtre (10) selon l'une des revendications précédentes est relié de façon amovible au boítier (2) de l'appareil.
  18. Appareil de traitement et de soin des cheveux fonctionnant électriquement et pouvant être traversé par de l'air, notamment sèche-cheveux, brosse de bouclage à air chaud ou analogue, caractérisé en ce que le dispositif de filtre (10) selon l'une des revendication précédentes est relié d'un seul tenant au boítier de l'appareil;
  19. Procédé pour nettoyer un dispositif de filtre selon l'une des revendications précédentes, caractérisé en ce que les saletés déposées sur la face extérieure de l'élément filtrant, telles que des cheveux, des floques ou peluches, de la poussière ou analogue, sont indiquées de façon précoce à l'utilisateur après leur dépôt par le contraste de couleur entre la face extérieure de l'élément filtrant et les saletés, et les saletés sont éliminées de façon simple par l'utilisateur par essuyage de la face extérieure (26) de l'élément filtrant (12).
  20. Procédé selon la revendication 19, caractérisé en ce que le saletés sont éliminées par l'utilisateur sans outil supplémentaire.
  21. Procédé selon la revendication 19 ou 20, caractérisé en ce que l'essuyage et effectué par l'utilisateur simplement avec sa main, notamment avec les doigts.
EP97111454A 1996-09-05 1997-07-07 Filtre pour sèche-cheveux Expired - Lifetime EP0827702B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19635933A DE19635933B4 (de) 1996-09-05 1996-09-05 Haarpflegegerät
DE19635933 1996-09-05

Publications (3)

Publication Number Publication Date
EP0827702A2 EP0827702A2 (fr) 1998-03-11
EP0827702A3 EP0827702A3 (fr) 2000-07-05
EP0827702B1 true EP0827702B1 (fr) 2002-09-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97111454A Expired - Lifetime EP0827702B1 (fr) 1996-09-05 1997-07-07 Filtre pour sèche-cheveux

Country Status (6)

Country Link
US (1) US5810911A (fr)
EP (1) EP0827702B1 (fr)
AT (1) ATE223167T1 (fr)
DE (2) DE19635933B4 (fr)
ES (1) ES2183054T3 (fr)
GB (1) GB2316868B (fr)

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DE9309013U1 (de) * 1993-06-17 1994-11-03 Ermila Friseurgeraete Gmbh Luftdusche, insbesondere zum Trocknen von Haaren
US5490336A (en) * 1994-01-10 1996-02-13 Smick; Gary L. Air intake filter for electric appliances
US5394620A (en) * 1994-04-20 1995-03-07 Chimera; Carmen R. Body dryer
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Also Published As

Publication number Publication date
US5810911A (en) 1998-09-22
DE19635933B4 (de) 2007-11-29
EP0827702A2 (fr) 1998-03-11
DE59708112D1 (de) 2002-10-10
ATE223167T1 (de) 2002-09-15
GB2316868B (en) 1998-09-02
ES2183054T3 (es) 2003-03-16
GB2316868A (en) 1998-03-11
GB9624370D0 (en) 1997-01-08
DE19635933A1 (de) 1998-03-12
EP0827702A3 (fr) 2000-07-05

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