EP0714247B1 - Small brush, in particular interdental brush - Google Patents
Small brush, in particular interdental brush Download PDFInfo
- Publication number
- EP0714247B1 EP0714247B1 EP94926837A EP94926837A EP0714247B1 EP 0714247 B1 EP0714247 B1 EP 0714247B1 EP 94926837 A EP94926837 A EP 94926837A EP 94926837 A EP94926837 A EP 94926837A EP 0714247 B1 EP0714247 B1 EP 0714247B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibers
- brush
- small brush
- wire
- brush according
- 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
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
- A46B3/18—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed on or between belts or wires
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B7/00—Bristle carriers arranged in the brush body
- A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
- A46B2200/108—Inter-dental toothbrush, i.e. for cleaning interdental spaces specifically
Definitions
- the invention relates to a brush, in particular an interdental brush, comprising a plurality of fibers. Bristles that are fixed radially projecting between two wire-like sections by twisting them.
- the wire-like sections consist of a metal wire or of a metal wire coated with plastic (see for example document GB-A-2 085 718).
- the wire breaks off the twisted wire sections, the user can be injured in the mouth and throat area during use and there is a risk of broken pieces being swallowed.
- the fiber sections that protrude radially are held by the clamping tension of the twisted wire and can come loose. These loose fiber sections can either be in the interdental spaces or gaps getting caught or getting caught, which is very uncomfortable.
- the wire sections conventionally used can cause galvanic effects when these wires come into contact with tooth fillings. Even with a plastic coating, such effects cannot be completely avoided, since the plastic coating can receive cracks during the manufacturing process or during further processing, which are not mechanically large, but are at least sufficient to enable a certain electrical conductivity in connection with the mouth saliva and to make unpleasant galvanic reactions noticeable.
- the object of the invention is to further develop a brush of the type in question in such a way that the usage properties and the dental care properties are further improved.
- the wire-like sections consist of at least one plastic fiber.
- plastic fibers with a suitable selection, can have very similar properties with regard to their twisting behavior as are known from conventionally used wires, i.e. the twisted plastic fiber sections remain in the twisted state without unscrewing again, so that they are able to hold the fibers or bristles or bundles of fibers or bristles in between in such a way that they protrude radially outward.
- Polyamide, polyacrylic, polypropylene, polyester, polycarbonate, PBT, PEEK and plastic fiber, which are reinforced with the aid of glass fibers or spherulites or the like, are preferably suitable as plastics for the fiber sections to be twisted here.
- the cross section of the plastic fiber is between 0.025 and 1.5 mm.
- Fillers can also be added to the fibers, e.g. Glass fibers or talc.
- These fillers can also include abrasive materials such as silicon carbide or the like.
- abrasive materials such as silicon carbide or the like.
- Such fibers are known as such from abrasive brushes, and in addition to silicon carbide, the more resistant aluminum oxide also comes into consideration.
- Teynex which contain silicon carbide with grain sizes between 46 and 500 and aluminum oxide with grain sizes between 80 and 500 with a grain content of 30%.
- brushes designed in this way have the advantage that, both when new and when used for a long time, it is absolutely ensured that the brush's core, which is made of all-plastic, does not cause any galvanic effect that the radially projecting bristles are held reliably , and that by the fillers for the twisted fibers an additional effect, for example an abrasive effect can be achieved.
- the resilience and the rigidity of the plastic can also be adjusted, so that the twisted fibers can be adjusted in such a way that they behave similarly to a conventionally used metal wire.
- the behavior of the fibers can also be controlled by selecting the cross-section and the cross-sectional geometry.
- the radially projecting fibers can be selected so that they spread out under mechanical or chemical influences, so that after twisting, fiber bundles can be created from relatively fine fibers.
- the radially projecting fibers are corrugated, for example in order to achieve a statistical distribution of the fiber tips along the circumference in this way.
Landscapes
- Brushes (AREA)
- Cosmetics (AREA)
Abstract
Description
Die Erfindung betrifft ein Bürstchen, insbesondere Interdentalbürstchen, umfassend eine Mehrzahl von Fasern bwz. Borsten, die radial abstehend zwischen zwei drahtartigen Abschnitten durch Verdrillen derselben festgelegt sind.The invention relates to a brush, in particular an interdental brush, comprising a plurality of fibers. Bristles that are fixed radially projecting between two wire-like sections by twisting them.
Bei bekannten derartigen Bürstchen bestehen die drahtartigen Abschnitte aus einem Metalldraht oder aus einem mit Kunststoff überzogenen Metalldraht (siehe zum Beispiel Dokument GB-A-2 085 718).In known brushes of this type, the wire-like sections consist of a metal wire or of a metal wire coated with plastic (see for example document GB-A-2 085 718).
Diese bekannten Bürstchen weisen den Nachteil auf, daß bei Biegewechselbelastungen, d.h. beim wiederholten Hin- und Herbiegen, die Gefahr besteht, daß der Draht bricht. In der Regel ist eine solche Bruchgefahr im Schnitt bereits bei ca. 20 Biegewechselbelastungen gegeben, wobei selbst Drähte mit Durchmessern von 0,20 bis 0,50 mm trotz sorgfältigster Auswahl nicht mehr als 50 bis 60 derartige Belastungen zulassen.These known brushes have the disadvantage that with alternating bending loads, i.e. repeated bending back and forth, there is a risk that the wire breaks. As a rule, such an average risk of breakage already exists with approx. 20 alternating bending loads, whereby even wires with a diameter of 0.20 to 0.50 mm, despite the most careful selection, do not allow more than 50 to 60 such loads.
Bricht der Draht der verdrillten Drahtabschnitte ab, kann sich der Anwender während der Anwendung im Mund und Rachenraum verletzen und es besteht die Gefahr des Verschluckens von abgebrochenen Stücken.If the wire breaks off the twisted wire sections, the user can be injured in the mouth and throat area during use and there is a risk of broken pieces being swallowed.
Die Faserabschnitte, die radial abstehen, werden durch die Klemmspannung des verdrillten Drahtes gehalten und können sich lösen. Diese losen Faserabschnitte können entweder in Zahnzwischenräumen oder -spalten hängenbleiben oder eingeklemmt werden, was als sehr unangenehm empfunden wird.The fiber sections that protrude radially are held by the clamping tension of the twisted wire and can come loose. These loose fiber sections can either be in the interdental spaces or gaps getting caught or getting caught, which is very uncomfortable.
Schließlich können durch die herkömmlicherweise verwendeten Drahtabschnitte galvanische Effekte bedingt sein, wenn diese Drähte in Kontakt mit Zahnfüllungen gelangen. Selbst durch eine Kunststoffbeschichtung können solche Effekte nicht vollständig vermieden werden, da die Kunststoffbeschichtung während des Herstellungsprozesses oder bei der Weiterverarbeitung Risse erhalten kann, welche zwar mechanisch nicht groß sind, immerhin aber ausreichen, um eine gewisse elektrische Leitfähigkeit in Verbindung mit dem Mundspeichel zu ermöglichen und unangenehme galvanische Reaktionen fühlbar zu machen.Finally, the wire sections conventionally used can cause galvanic effects when these wires come into contact with tooth fillings. Even with a plastic coating, such effects cannot be completely avoided, since the plastic coating can receive cracks during the manufacturing process or during further processing, which are not mechanically large, but are at least sufficient to enable a certain electrical conductivity in connection with the mouth saliva and to make unpleasant galvanic reactions noticeable.
Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, ein Bürstchen der in Betracht stehenden Art so weiterzubilden, daß die Gebrauchseigenschaften und die Zahnpflegeeigenschaften weiter verbessert werden.Proceeding from this, the object of the invention is to further develop a brush of the type in question in such a way that the usage properties and the dental care properties are further improved.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die drahtartigen Abschnitte aus wenigstens einer Kunststoffaser bestehen. Überraschenderweise wurde festgestellt, daß Kunststoffasern bei geeigneter Auswahl hinsichtlich ihres Verdrillverhaltens ganz ähnliche Eigenschaften aufweisen können, wie sie von herkömmlicherweise verwendeten Drähten bekannt sind, d.h. die verdrillten Kunststoffaserabschnitte verbleiben im verdrillten Zustand, ohne sich selbständig wieder aufzudrehen, so daß sie in der Lage sind, die dazwischen befindlichen Fasern bzw. Borsten bzw. Bündel von Fasern oder Borsten festzuhalten, und zwar derart, daß diese nach außen radial abstehen.This object is achieved in that the wire-like sections consist of at least one plastic fiber. Surprisingly, it was found that plastic fibers, with a suitable selection, can have very similar properties with regard to their twisting behavior as are known from conventionally used wires, i.e. the twisted plastic fiber sections remain in the twisted state without unscrewing again, so that they are able to hold the fibers or bristles or bundles of fibers or bristles in between in such a way that they protrude radially outward.
Als Kunststoffe für die hier in Betracht stehenden zu verdrillenden Faserabschnitte kommen vorzusweise Polyamid, Polyacryl, Polypropylen, Polyester, Polycarbonat, PBT, PEEK und Kunststoffaser in Betracht, welche mit Hilfe von Glasfasern oder Sphäroliten oder dergleichen verstärkt sind.Polyamide, polyacrylic, polypropylene, polyester, polycarbonate, PBT, PEEK and plastic fiber, which are reinforced with the aid of glass fibers or spherulites or the like, are preferably suitable as plastics for the fiber sections to be twisted here.
In weiterer Ausgestaltung der Erfindung kann vorgesehen sein, daß der Querschnitt der Kunststoffaser zwischen 0,025 und 1,5 mm liegt.In a further embodiment of the invention it can be provided that the cross section of the plastic fiber is between 0.025 and 1.5 mm.
Weiterhin können den Fasern Füllstoffe zugesetzt werden., z.B. Glasfasern oder Talkum.Fillers can also be added to the fibers, e.g. Glass fibers or talc.
Diese Füllstoffe können auch abrassive Stoffe, wie Siliciumcarbid oder dergleichen umfassen. Derartige Fasern sind als solche von Schleifbürsten her bekannt, wobei neben Siliciumcarbid auch das widerstandsfähigere Aluminiumoxyd in Betracht kommt. Auf dem Markt sind Produkte unter dem Handelsnamen "Tynex", die Siliciumcarbid mit Korngrößen zwischen 46 und 500 und Aluminiumoxyd mit Korngrößen zwischen 80 und 500 bei einem Kornanteil von 30 % enthalten.These fillers can also include abrasive materials such as silicon carbide or the like. Such fibers are known as such from abrasive brushes, and in addition to silicon carbide, the more resistant aluminum oxide also comes into consideration. There are products on the market under the trade name "Tynex", which contain silicon carbide with grain sizes between 46 and 500 and aluminum oxide with grain sizes between 80 and 500 with a grain content of 30%.
Bei der Verwendung im Dentalbereich wird mit derart ausgestalteten Bürstchen der Vorteil erreicht, daß sowohl im Neuzustand als auch bei längerem Gebrauch absolut sichergestellt ist, daß durch die aus Vollkunststoff hergestellte Seele des Bürstchens keinerlei galvanische Effekt bedingt ist, daß die radial abstehenden Borsten zuverlässig gehalten werden, und daß durch die Füllstoffe für die verdrillten Fasern ein zusätzlicher Effekt, z.B. ein abrassiver Effekt, erzielt werden kann.When used in the dental field, brushes designed in this way have the advantage that, both when new and when used for a long time, it is absolutely ensured that the brush's core, which is made of all-plastic, does not cause any galvanic effect that the radially projecting bristles are held reliably , and that by the fillers for the twisted fibers an additional effect, for example an abrasive effect can be achieved.
Darüber hinaus kann mit Hilfe von Füllstoffen gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung auch das Rückstellvermögen und die Steifigkeit des Kunststoffes eingestellt werden, so daß auf diese Weise die verdrillten Fasern so eingestellt werden können, daß es sich ähnlich einem herkömmlicherweise verwendeten Metalldraht verhalten. Auch durch Auswahl des Querschnitts und der Querschnittsgeometrie kann das Verhalten der Fasern gesteuert werden.In addition, with the aid of fillers, according to a further advantageous embodiment of the invention, the resilience and the rigidity of the plastic can also be adjusted, so that the twisted fibers can be adjusted in such a way that they behave similarly to a conventionally used metal wire. The behavior of the fibers can also be controlled by selecting the cross-section and the cross-sectional geometry.
Die radial abstehenden Fasern können so ausgewählt werden, daß sie sich unter mechanischen oder chemischen Einflüssen aufspreizen, so daß nach dem Verdrillen Faserbündel aus relativ feinen Fasern geschaffen werden können.The radially projecting fibers can be selected so that they spread out under mechanical or chemical influences, so that after twisting, fiber bundles can be created from relatively fine fibers.
Weiterhin kann vorgesehen sein, daß die radial abstehenden Fasern gewellt sind, beispielsweise um auf diese Weise eine möglichst statistische Verteilung der Faserspitzen längs des Umfanges zu erreichen.Furthermore, it can be provided that the radially projecting fibers are corrugated, for example in order to achieve a statistical distribution of the fiber tips along the circumference in this way.
Nachfolgend wird die Erfindung anhand eines bevorzugten Ausführungsbeispieles in Verbindung mit der Zeichnung näher erläutert. Dabei zeigen
- Fig. 1
- eine schematische Seitenansicht eines erfindungsgemäßen Bürstchens und
- Fig. 2
- eine Seitenansicht vor dem Verdrillen der Faserabschnitte.
- Fig. 1
- is a schematic side view of a brush according to the invention and
- Fig. 2
- a side view before twisting the fiber sections.
In der Zeichnung sind zwei Abschnitte 1, 2 einer U-förmig umgebogenen Kunststoffaser 3 dargestellt. Zwischen die Abschnitte 1, 2 sind Borsten 4 eingelegt, wie dies aus Fig. 2 ersichtlich ist. Die Abschnitte 1, 2 werden dann in an sich bekannter Weise verdrillt, so daß die Borsten 4 radial nach allen Seiten wegstehen. Sie bilden eine äußere Hüllkurve 5 aus, die auch durch nachträgliches Beschneiden gebildet oder korrigiert werden kann. Die Enden der Abschnitte 1, 2 sind im Ausführungsbeispiel in einer Griffhülse 6 festgelegt, können aber auch, wie dies von Interdental-Bürstchen bekannt ist, abgeknickt und in einem speziellen Halter auswechselbar festgelegt werden.In the drawing, two sections 1, 2 of a U-shaped
Claims (7)
- A small brush, in particular an interdental brush, comprising a plurality of fibers or bristles, respectively, which are secured so as to protrude radially between two wire-type segments by the latter being twisted, characterized in that the wire-type segments (1, 2) consist of at least one plastic fiber (3).
- A small brush according to claim 1, characterized in that the cross-section of the fiber (3) ranges between 0.025 and 1.5 mm.
- A small brush according to claim 1, characterized in that fillers are added to the fibers (3).
- A small brush according to claim 3, characterized in that the fillers include abrasives, such as silicon carbide or the like.
- A small brush according to claim 3, characterized in that the fillers are selected to increase the rigidity.
- A small brush according to claim 1, characterized in that the radially protruding fibers (1, 2) are formed as fibers fanning out under mechanical or chemical influences.
- A small brush according to claim 1, characterized in that the radially protruding fibers (1, 2) are wavy.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9312577U | 1993-08-21 | ||
| DE9312577U DE9312577U1 (en) | 1993-08-21 | 1993-08-21 | Brushes, especially interdental brushes |
| PCT/EP1994/002714 WO1995005762A1 (en) | 1993-08-21 | 1994-08-13 | Small brush, in particular interdental brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0714247A1 EP0714247A1 (en) | 1996-06-05 |
| EP0714247B1 true EP0714247B1 (en) | 1997-01-15 |
Family
ID=6897094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94926837A Expired - Lifetime EP0714247B1 (en) | 1993-08-21 | 1994-08-13 | Small brush, in particular interdental brush |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5638568A (en) |
| EP (1) | EP0714247B1 (en) |
| DE (2) | DE9312577U1 (en) |
| ES (1) | ES2097060T3 (en) |
| WO (1) | WO1995005762A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005027982A1 (en) * | 2005-06-16 | 2006-12-28 | Braun Gmbh | Interdental brush for use in e.g. electrical vibration cleaner, has bristles-like filaments oriented in longitudinal direction of bristles body and comprising outer contour different from cylinder form and/or structured surface |
| DE102012022996A1 (en) | 2012-11-24 | 2014-05-28 | Robert Dieter Neeb | Interdental brush has one or two brush bodies, which are arranged on finger cot, where brush bodies are connected with finger cot in form-fit, force-fit and integral manner, and finger cot is made of elastic plastic material |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1003771C2 (en) * | 1996-08-09 | 1998-02-12 | Mirjam De Wilde | Interdental toothbrush. |
| DE19830488B4 (en) * | 1997-12-10 | 2006-09-07 | Heidelberger Druckmaschinen Ag | Cleaning device for cylinders of printing machines |
| DE19847733A1 (en) * | 1998-10-16 | 2000-04-20 | Geka Brush Georg Karl Gmbh | Mascara brush with improved application characteristics |
| DE10042446A1 (en) * | 2000-08-29 | 2002-03-14 | Coronet Werke Gmbh | bristle article |
| US20020120995A1 (en) * | 2000-10-02 | 2002-09-05 | Brezler Russel A. | Low friction toothbrush |
| KR100840437B1 (en) * | 2000-10-02 | 2008-06-20 | 이 아이 듀폰 디 네모아 앤드 캄파니 | Low friction toothbrush |
| KR200295540Y1 (en) * | 2002-08-08 | 2002-11-22 | 문명진 | A tooth brush of three dimensions structure |
| GB2401782A (en) * | 2003-05-21 | 2004-11-24 | Welters Co Ltd | Interdental brush |
| JP3615752B1 (en) * | 2003-11-18 | 2005-02-02 | 淳 高橋 | Small diameter resin twist brush |
| JP5083932B2 (en) * | 2005-02-18 | 2012-11-28 | ユニチカトレーディング株式会社 | Method for producing brushes such as interdental brushes |
| US8001980B2 (en) * | 2006-01-11 | 2011-08-23 | Alcan Packaging Beauty Services | Multi-helicoidal applicator brush |
| DE102012015663A1 (en) * | 2012-08-09 | 2014-05-15 | Interbros Gmbh | Interdental cleaners |
| FR3059527B1 (en) * | 2016-12-02 | 2019-01-25 | L'oreal | APPLICATOR OF MASCARA |
| EP3510889A1 (en) * | 2018-01-10 | 2019-07-17 | SOLO-MED GmbH | Interdental brush |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3124823A (en) * | 1964-03-17 | Stem brush and method for making same | ||
| US2580378A (en) * | 1945-08-06 | 1951-12-25 | Osborn Mfg Co | Brush manufacture |
| US2972157A (en) * | 1957-05-08 | 1961-02-21 | Osborn Mfg Co | Twisted stem tufted brush |
| US3878580A (en) * | 1969-02-06 | 1975-04-22 | Rayette Faberge | Brush |
| JPS535007A (en) * | 1976-07-05 | 1978-01-18 | Kawasaki Steel Co | Method of recovering energy from staving exhaust steam |
| JPS5317123A (en) * | 1976-07-23 | 1978-02-16 | Kagome Kk | Plant come under new kind of tomato |
| CH648465A5 (en) * | 1980-10-22 | 1985-03-29 | Esro Ag | BRUSH. |
| DE4022890A1 (en) * | 1990-07-18 | 1992-01-23 | Geka Brush Georg Karl Gmbh | BRUSH, ESPECIALLY MASCARA BRUSH |
| US5161555A (en) * | 1991-07-25 | 1992-11-10 | Ketema | Cosmetic brush |
-
1993
- 1993-08-21 DE DE9312577U patent/DE9312577U1/en not_active Expired - Lifetime
-
1994
- 1994-08-13 US US08/591,678 patent/US5638568A/en not_active Expired - Fee Related
- 1994-08-13 WO PCT/EP1994/002714 patent/WO1995005762A1/en active IP Right Grant
- 1994-08-13 DE DE59401620T patent/DE59401620D1/en not_active Expired - Fee Related
- 1994-08-13 EP EP94926837A patent/EP0714247B1/en not_active Expired - Lifetime
- 1994-08-13 ES ES94926837T patent/ES2097060T3/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005027982A1 (en) * | 2005-06-16 | 2006-12-28 | Braun Gmbh | Interdental brush for use in e.g. electrical vibration cleaner, has bristles-like filaments oriented in longitudinal direction of bristles body and comprising outer contour different from cylinder form and/or structured surface |
| DE102005027982B4 (en) * | 2005-06-16 | 2007-09-06 | Braun Gmbh | Interdental brush and interdental cleaner |
| DE102012022996A1 (en) | 2012-11-24 | 2014-05-28 | Robert Dieter Neeb | Interdental brush has one or two brush bodies, which are arranged on finger cot, where brush bodies are connected with finger cot in form-fit, force-fit and integral manner, and finger cot is made of elastic plastic material |
Also Published As
| Publication number | Publication date |
|---|---|
| DE9312577U1 (en) | 1993-11-18 |
| DE59401620D1 (en) | 1997-02-27 |
| EP0714247A1 (en) | 1996-06-05 |
| ES2097060T3 (en) | 1997-03-16 |
| US5638568A (en) | 1997-06-17 |
| WO1995005762A1 (en) | 1995-03-02 |
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