EP0700259A1 - Head for a toothbrush - Google Patents

Head for a toothbrush

Info

Publication number
EP0700259A1
EP0700259A1 EP94915131A EP94915131A EP0700259A1 EP 0700259 A1 EP0700259 A1 EP 0700259A1 EP 94915131 A EP94915131 A EP 94915131A EP 94915131 A EP94915131 A EP 94915131A EP 0700259 A1 EP0700259 A1 EP 0700259A1
Authority
EP
European Patent Office
Prior art keywords
silver
bristles
separate means
toothbrush
toothbrush 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.)
Granted
Application number
EP94915131A
Other languages
German (de)
French (fr)
Other versions
EP0700259B1 (en
Inventor
Georges Driesen
Peter Hilfinger
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 EP0700259A1 publication Critical patent/EP0700259A1/en
Application granted granted Critical
Publication of EP0700259B1 publication Critical patent/EP0700259B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B15/00Other brushes; Brushes with additional arrangements
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B3/00Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/16Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by wires or other anchoring means, specially for U-shaped bristle tufts
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures

Definitions

  • the invention is based on a toothbrush with a brush part which has a bristle holder and bristles fixed thereon, the brush part being provided with components as a material with an oligodynamic effect.
  • Such a brush part is already known from DE 31 05 544 AI.
  • the bristle carrier of this brush part is coated with a silver layer by means of an electro-galvanic process.
  • the silvering of the bristle carrier is intended to prevent dirt from adhering and, above all, the formation of bacteria.
  • the disadvantage here is that the surface coating of the bristle carrier does not give rise to the desired germicidal effect of the silver in any case in the bristle section which is arranged in the bristle carrier. Due to the capillary action, moisture is practically always present there, which is very difficult to dry. In addition, silvering of the entire bristle carrier is costly and labor-intensive.
  • a toothbrush is also known from EP 0 357 852, in which the attachment area of the bristles is designed in such a way that an ion flow can take place in this area.
  • the ion flow is generated by means of a battery housed in the toothbrush.
  • the invention is therefore based on the problem of further developing the known toothbrush in such a way that the toothbrush is essentially free of bacteria / germs and remains in use without additional manufacturing outlay.
  • Oligodynamics is generally understood to mean the effectiveness of the smallest amounts of metal ions, especially a growth-inhibiting or killing effect of heavy metal traces on microorganisms, the oligodynamic effect of the metals decreasing correspondingly according to the following series: cadmium - silver - brass - copper - mercury. Cadmium has the greatest, mercury the least oligodynamic effect. This oligodynamic effect is and was mainly used for the disinfection and preservation of liquids, especially for the disinfection of drinking, bathing and process water. Silver and its compounds are particularly suitable. The silver ions, which are relatively difficult to dissolve on contact with water, attach themselves to the negative charge carriers of the bacterial cells as positive ions.
  • the separate centers for fixing the bristles in bores of the bristle carrier are advantageously designed as anchor plates, in particular arranged approximately centrally between the bristles of a bristle tuft and anchored in regions of the bristle carrier adjacent to the bores.
  • the bristles are fixed in the bores by the anchor plates using a method known per se. In this method (see, for example, EP 0 289 059 B1), the bristle carriers of the toothbrushes are equipped with bristles using a tamping machine. The tufts of bristles are introduced into the bore in a U-shape / curve and are held in the bores by inserting (inserting) the anchor plate.
  • the bristles in the Bristle carriers can be fixed with anchor plates.
  • the material the anchor plate acts directly in the particularly critical area of the toothbrush, in which the bacteria accumulate and multiply particularly easily, ie between the individual bristles in the bore. Due to the capillary action, the bristles in the area of the bore are completely wetted with water after and after use of the toothbrush, which can only dry slowly between uses, so that this area acts as a source for the development of germs or applies to the accumulation and multiplication of bacteria.
  • the oligodynamic effect of the material of the anchor plate kills the bacteria in this area and thus ensures a germ-free brush.
  • the separate means consist of a material enriched with silver, preferably of a silver alloy with a silver content of more than about 70%.
  • the separate agents particularly advantageously consist of a silver-copper alloy with a silver content of approximately 90 to 97% and a copper content of approximately 10% to 3%, or a silver-titanium alloy with an upper content of approximately 70% and one Titanium content of about 30%.
  • These alloys can be used without any problems for the production process and, in addition to the required addition of 500 m / mm 500 s / mm, also have a sufficient oligodynamic effect.
  • the separate means are provided with a coating of essentially pure silver.
  • the separate means for example the armature wire, are galvanically provided with the silver coating, so that the procedural strength values of the material for the anchor plates are ensured by the base material of the anchor wire and the oligodynamic effect by the silver coating. Because the silver coating has a thickness of 5 to 50, in particular 5 to 20, micrometers, the desired oligodynamic effect of the silver is achieved, taking into account the economical use of materials.
  • the separate agents advantageously consist of silver with a degree of purity of more than about 99%, which ensures an extremely high oligodynamic effect.
  • special treatment of the silver material e.g.
  • the strength values and processing properties required for the process are achieved by cooling with nitrogen and the fixing of the bristles in the bristle carrier is made possible with an anchor plate made of silver.
  • the required strength values can also be achieved by cold working the anchor material.
  • the separate means consist of stainless steel or titanium. In addition to the required strength values, these materials also have an albeit weaker fungicidal and bactericidal action.
  • FIG. 1 shows a brush part according to the invention in longitudinal section.
  • Fig. 2 shows the brush part of FIG. 1 1m cross section.
  • a brush part 20 for toothbrushes has bristles 24 which are arranged in a bristle carrier 22 individually or in the form of tufts of bristles 26.
  • the bristles of the bristle tufts 26 are each bent into a U-shape and inserted into a bore 32.
  • the bristle tufts 26 are fixed in the bores 32 by means of ready means 28, which at least partially consist of silver and are preferably designed as anchor plates 30.
  • These anchor plates 30 are each arranged centrally in the U-shaped region 36 of the bristle tufts 26 and anchored, in particular clamped, in regions 34 which in each case adjoin the bores 32. The bristle tufts 26 are thus secured in their position against slipping out or being pulled out.
  • the bristles 24 are inserted into the bores 32 in the bristle carrier 22 in a U-shaped manner by means of a tamping machine. Then the anchor plate 30 is inserted centrally into the bent bristle 24 or the bristle tuft 26. Areas 38 remain between the bristles 24 or the bristles 24 and the bore 32 and are not completely filled by the bristles 24 or tufts 26. Since, due to the capillary action between the individual bristles 24 or between the bristles 24 and the bores 32 in the areas 38, water collects during use, which rarely dries from one use of the toothbrush for the next use, these areas 38 are a source of bacteria.
  • the anchor plates 30 Due to the material of the anchor plates 30, which is at least partially made of silver, silver ions dissolve on contact with the water during and after use of the toothbrush. These silver ions impair the metabolism of the bacteria and lead to the death of the bacteria with the breakdown of the metabolism. In addition, these silver ions also have a fungicidal action, ie they also destroy molds which could possibly accumulate in the area of the bores 32 between or on the bristles 24. Due to the properties of the silver that it is difficult to release ions in solution, there is a natural limitation of the number of ions in the solution, but this is sufficient for a bactericidal effect.
  • the solution does not have a detrimental effect on the flora of useful bacteria present in the oral cavity, since the positive silver ions react almost completely with the negative ions of toothpaste or saliva.
  • the positive silver ions combine in part with the negative ions of the toothpaste or saliva to form silver salts, which precipitate out of the solution and are rinsed out of the oral cavity with the rinsing water while brushing the teeth.
  • the brush part 20 of the toothbrush is germ-free through the use of anchor plates 30 made of a material with an oligodynamic effect, for example an anchor wire provided with a silver coating, and remains in the critical area between the bristles 24 or in despite the persistent moisture the areas 38 between the bristles 24 and the bores 32.

Abstract

PCT No. PCT/EP94/01326 Sec. 371 Date Nov. 14, 1995 Sec. 102(e) Date Nov. 14, 1995 PCT Filed Apr. 27, 1996 PCT Pub. No. WO94/27467 PCT Pub. Date Dec. 8, 1994The invention is directed to a toothbrush having a brush section 20 comprising a bristle carrier 22 and bristles 24 fixedly secured thereto, with the brush section 20 being provided with components made of silver. Separate structures 28 are provided for fixedly securing the bristles 24 in their proper location in the bristle carrier 22, which separate structures 28 are made of a material with oligodynamic action.

Description

Bürstenteil für eine Zahnbürste Brush part for a toothbrush
Die Erfindung geht aus von einer Zahnbürste mit einem Bürsten¬ teil, welches einen Borstenträger und daran festgelegte Borsten aufweist, wobei das Bürstenteil mit Bestandteilen a s einem Ma¬ terial mit oligodynamischer Wirkung versehen ist.The invention is based on a toothbrush with a brush part which has a bristle holder and bristles fixed thereon, the brush part being provided with components as a material with an oligodynamic effect.
Ein derartiges Bürstenteil ist bereits aus der DE 31 05 544 AI bekannt. Der Borstenträger dieses Bürstenteiles wird vor dem Ein¬ setzen der Borsten mittels eines elektrogalvanischen Verfahrens mit einer Silberschicht überzogen. Die Versilberung des Borsten¬ trägers soll das Anhaften von Schmutz und vor allem die Bildung von Bakterien verhindern. Nachteilig ist hierbei, daß durch die Oberflächenbeschichtung des Borstenträgers die erwünschte keim¬ tötende Wirkung des Silbers jedenfalls in dem Borstenabschnitt, der in dem Borstenträger angeordnet ist, nicht eintritt. Dort ist bedingt durch die Kapillarwirkung praktisch ständig Feuchtigkeit vorhanden, welche nur sehr schlecht abtrocknen kann. Darüber- hinaus ist eine Versilberung des gesamten Borstenträgers kosten- und arbeitsaufwendig.Such a brush part is already known from DE 31 05 544 AI. Before the bristles are inserted, the bristle carrier of this brush part is coated with a silver layer by means of an electro-galvanic process. The silvering of the bristle carrier is intended to prevent dirt from adhering and, above all, the formation of bacteria. The disadvantage here is that the surface coating of the bristle carrier does not give rise to the desired germicidal effect of the silver in any case in the bristle section which is arranged in the bristle carrier. Due to the capillary action, moisture is practically always present there, which is very difficult to dry. In addition, silvering of the entire bristle carrier is costly and labor-intensive.
Andere Techniken zur Vermeidung der Entstehung bzw. Verminderung einer bereits vorhandenen Bakterienflora am Bürstenteil, insbe¬ sondere zwischen den einzelnen Borsten, bestehen z. B. in der Be¬ strahlung der Bürste mit UV-Licht. Dieses Verfahren ist mit einem zusätzlichen Aufwand für den Benutzer verbunden, benötigt Zeit und verursacht auch zusätzliche Kosten für das Bestrahlungsgerät.Other techniques for avoiding the formation or reduction of an already existing bacterial flora on the brush part, in particular between the individual bristles, exist e.g. B. in the irradiation of the brush with UV light. This method involves additional effort for the user, takes time and also causes additional costs for the radiation device.
Aus der EP 0 357 852 ist des weiteren eine Zahnbürste bekannt, bei der der Befestigungsbereich der Borsten derart gestaltet ist, daß in diesem Bereich ein lonenfluß erfolgen kann. Der lonenfluß wird mittels einer in der Zahnbürste untergebrachten Batterie er¬ zeugt. Der Erfindung liegt daher das Problem zugrunde, die bekannte Zahnbürste dahingehend weiterzubilden, daß ohne zusätzlichen Her¬ stellungsaufwand die Zahnbürste im wesentlichen frei ist von Bak¬ terien/Keimen und während der Benutzung auch bleibt.A toothbrush is also known from EP 0 357 852, in which the attachment area of the bristles is designed in such a way that an ion flow can take place in this area. The ion flow is generated by means of a battery housed in the toothbrush. The invention is therefore based on the problem of further developing the known toothbrush in such a way that the toothbrush is essentially free of bacteria / germs and remains in use without additional manufacturing outlay.
Gelöst wird dieses Problem dadurch, daß zur Festlegung der Bor¬ sten im Borstenträger separate Mittel vorgesehen sind und diese separaten Mittel aus dem Material mit oligodynamischer Wirkung bestehen.This problem is solved in that separate means are provided for fixing the bristles in the bristle carrier and these separate means consist of the material with an oligodynamic effect.
Als Oligodynamie wird allgemein die Wirksamkeit kleinster Mengen von Metallionen, speziell eine wachstumshemmende oder abtötende Wirkung von Schwermetallspuren auf Mikroorganismen, verstanden, wobei der oligodynamisehe Effekt der Metalle entsprechend nach¬ folgender Reihe abnimmt: Cadmium - Silber - Messing - Kupfer - Quecksilber. Cadmium hat dabei die größte, Quecksilber die ge¬ ringste oligodynamisehe Wirkung. Dieser oligodynamisehe Effekt wird und wurde vor allem zur Desinfektion und Konservierung von Flüssigkeiten, insbesondere zur Entkeimung von Trink-, Bade- und Brauchwasser genutzt. Besonders geeignet sind hierbei Silber und seine Verbindungen. Die Silber-Ionen, die bei Kontakt mit Wasser relativ schwer in Lösung gehen, lagern sich als positive Ionen an den negativen Ladungsträgern der Bakterienzellen an. Dieser Anla¬ gerung folgt eine irreversible Schädigung der Bakterienzelle, d.h. es kommt zu einer bakteriziden Wirkung. Ursache hierfür ist die Blockierung von bestimmten Enzymen durch die Metall-Ionen, die zur Störung des Stoffwechsels der Bakterien führt und den Tod der Bakterienzelle zur Folge hat. Ebenso bedeutsam ist die fungi- zide, z.B. für Schimmelpilze tödliche Wirkung des Silbers. Diese Reaktionen beginnen bereits bei einer Silber-Konzentration ab ca. 5 Mikrogramm/1 Wasser, die weit unterhalb der Gefährdungsschwelle für den menschlichen Organismus liegt. Unterhalb dieser Grenze wird ein bakteriostatischer bzw. fungistatischer Zustand er¬ reicht, d.h. vorhandene Bakterien oder Pilze können sich nicht vermehren. Bedingt durch die Verwendung von einem Material mit oligodynamischer Wirkung als separates Mittel zur Festlegung der Borsten im Borstenträger wird die Keimbildung, gerade in diesem schlecht trocknenden und damit problematischen Bereich verhin¬ dert. Aufgrund der chemischen Diffusion ensteht auch in einem Borstenabschnitt oberhalb des Borstenträgers eine im wesentlichen keimfreie Zone. Durch diese Maßnahme wird ohne zusätzliche Ver¬ wendung chemischer oder sonstiger Substanzen eine keimfreie Zahn¬ bürste geschaffen. Infektionen, z.B. im Zahnfleischbereich, die bei Verwendung einer mit Bakterien befallenen Zahnbürste entste¬ hen können, werden praktisch ausgeschlossen. Auf das Herstel¬ lungsverfahren oder die einzusetzenden Werkzeuge hat der erfin¬ dungsgemäße Einsatz dieser separaten Mittel, bestehend aus einem Material mit oligodynamischer Wirkung keinen Einfluß, so daß die Technologie der bisherigen Herstellungsverfahren unverändert bei¬ behalten werden kann.Oligodynamics is generally understood to mean the effectiveness of the smallest amounts of metal ions, especially a growth-inhibiting or killing effect of heavy metal traces on microorganisms, the oligodynamic effect of the metals decreasing correspondingly according to the following series: cadmium - silver - brass - copper - mercury. Cadmium has the greatest, mercury the least oligodynamic effect. This oligodynamic effect is and was mainly used for the disinfection and preservation of liquids, especially for the disinfection of drinking, bathing and process water. Silver and its compounds are particularly suitable. The silver ions, which are relatively difficult to dissolve on contact with water, attach themselves to the negative charge carriers of the bacterial cells as positive ions. This attachment is followed by irreversible damage to the bacterial cell, ie there is a bactericidal effect. The reason for this is the blocking of certain enzymes by the metal ions, which leads to a disruption of the metabolism of the bacteria and the death of the bacterial cell. The fungicidal effect of the silver, which is fatal for mold, is just as important. These reactions start at a silver concentration of approx. 5 micrograms / 1 water, which is far below the hazard threshold for the human organism. Below this limit a bacteriostatic or fungistatic state is reached, ie existing bacteria or fungi cannot multiply. Due to the use of a material with an oligodynamic effect as a separate means for fixing the bristles in the bristle carrier, nucleation is prevented, particularly in this poorly drying and thus problematic area. Due to the chemical diffusion, an essentially germ-free zone also arises in a bristle section above the bristle carrier. This measure creates a germ-free toothbrush without the additional use of chemical or other substances. Infections, for example in the gum area, which can arise when using a toothbrush infested with bacteria, are practically excluded. The inventive use of these separate means, consisting of a material with an oligodynamic effect, has no influence on the manufacturing process or the tools to be used, so that the technology of the previous manufacturing processes can be retained unchanged.
Von Vorteil sind die separaten Mittet zur Festlegung der Borsten in Bohrungen des Borstenträgers als Ankerplättchen ausgebildet, insbesondere in etwa mittig zwischen den Borsten eines Borsten¬ büschels angeordnet und in an die Bohrungen jeweils angrenzenden Bereichen des Borstenträgers verankert. Die Festlegung der Bor¬ sten in den Bohrungen durch die Ankerplättchen erfolgt mit einem an sich bekannten Verfahren. Bei diesem Verfahren (siehe z.B. EP 0 289 059 Bl) werden die Borstenträger der Zahnbürsten mittels einer Stopfmaschine mit Borsten bestückt. Die Borstenbüschel wer¬ den U-förmig/ gebogen in die Bohrung eingebracht und durch Ein¬ fügen (Einschießen) des Ankerplättchens in den Bohrungen gehal¬ ten. Damit ist der Einsatz eines Materials mit oligodynamischer Wirkung bei allen Zahnbürsten möglich, bei denen die Borsten im Borstenträger mit Ankerplättchen festgelegt werden. Das Material der Ankerplättchen wirkt unmittelbar in dem besonders kritischen Bereich der Zahnbürste, in dem sich die Bakterien besonders leicht ansammeln und vermehren, d.h. zwischen den einzelnen Bor¬ sten in der Bohrung. Aufgrund der Kapillarwirkung sind die Bor¬ sten im Bereich der Bohrung bei und nach dem Gebrauch der Zahn¬ bürste vollständig mit Wasser benetzt, welches zwischen den Be¬ nutzungen nur langsam abtrocknen kann, so daß dieser Bereich als Herd für die Entstehung von Keimen bzw. für die Ansammlung und Vermehrung von Bakterien gilt. Die oligodynamisehe Wirkung des Materiales des Ankerplättchens bewirkt die Abtötung der Bakterien in diesem Bereich und sorgt somit für eine keimfreie Bürste.The separate centers for fixing the bristles in bores of the bristle carrier are advantageously designed as anchor plates, in particular arranged approximately centrally between the bristles of a bristle tuft and anchored in regions of the bristle carrier adjacent to the bores. The bristles are fixed in the bores by the anchor plates using a method known per se. In this method (see, for example, EP 0 289 059 B1), the bristle carriers of the toothbrushes are equipped with bristles using a tamping machine. The tufts of bristles are introduced into the bore in a U-shape / curve and are held in the bores by inserting (inserting) the anchor plate. This makes it possible to use a material with an oligodynamic effect in all toothbrushes in which the bristles in the Bristle carriers can be fixed with anchor plates. The material the anchor plate acts directly in the particularly critical area of the toothbrush, in which the bacteria accumulate and multiply particularly easily, ie between the individual bristles in the bore. Due to the capillary action, the bristles in the area of the bore are completely wetted with water after and after use of the toothbrush, which can only dry slowly between uses, so that this area acts as a source for the development of germs or applies to the accumulation and multiplication of bacteria. The oligodynamic effect of the material of the anchor plate kills the bacteria in this area and thus ensures a germ-free brush.
In einer vorteilhaften Ausbildung der Erfindung bestehen die se¬ paraten Mittel aus einem mit Silber angereichertem Material, vor¬ zugsweise aus einer Silber-Legierung mit einem Silberanteil von über etwa 70%.In an advantageous embodiment of the invention, the separate means consist of a material enriched with silver, preferably of a silver alloy with a silver content of more than about 70%.
Besonders vorteilhaft bestehen die separaten Mittel aus einer Silber-Kupfer-Legierung mit einem Silberanteil von etwa 90 bis 97% und einem Kupferanteil von etwa 10% bis 3% oder einer Sil¬ ber-Titan-Legierung mit einem SUberanteil von etwa 70% und einem Titananteil von etwa 30%. Diese Legierungen sind für das Herstel¬ lungsverfahren problemlos verwendbar und weisen neben der erfor¬ ddeerrlliicchheenn ZZuuggffeessttiiggkkeeiitt vvoonn mmeehhrr aall:s 500 N/mm auch eine aus¬ reichende oligodynamisehe Wirkung auf.The separate agents particularly advantageously consist of a silver-copper alloy with a silver content of approximately 90 to 97% and a copper content of approximately 10% to 3%, or a silver-titanium alloy with an upper content of approximately 70% and one Titanium content of about 30%. These alloys can be used without any problems for the production process and, in addition to the required addition of 500 m / mm 500 s / mm, also have a sufficient oligodynamic effect.
in einer vorteilhaften Weiterbildung sind die separaten Mittel mit einem Überzug aus im wesentlichen reinem Silber versehen. Die separaten Mittel, z.B. der Ankerdraht, werden galvanisch mit dem Silberüberzug versehen, so daß die verfahrenstechnisch erforder¬ lichen Festigkeitswerte des Materials für die Ankerplättchen durch das Grundmaterial des Ankerdrahtes und der oligodynamisehe Effekt durch den Silberüberzug gewährleistet werden. Dadurch, daß der Silberüberzug eine Dicke von 5 bis 50, insbeson¬ dere 5 bis 20 Mikrometer aufweist, wird die gewünschte oligodyna¬ misehe Wirkung des Silbers unter Berücksichtigung eines ökonomi¬ schen Materialeinsatzes erzielt.In an advantageous development, the separate means are provided with a coating of essentially pure silver. The separate means, for example the armature wire, are galvanically provided with the silver coating, so that the procedural strength values of the material for the anchor plates are ensured by the base material of the anchor wire and the oligodynamic effect by the silver coating. Because the silver coating has a thickness of 5 to 50, in particular 5 to 20, micrometers, the desired oligodynamic effect of the silver is achieved, taking into account the economical use of materials.
Von Vorteil bestehen die separaten Mittel aus Silber mit einem Reinheitsgrad von mehr als etwa 99%, wodurch eine äußerst hohe oligodynamisehe Wirkung gewährleistet wird. Durch spezielle Be¬ handlung des Silbermaterials, z.B. durch Kühlung mit Stickstoff werden die für das Verfahren erforderlichen Festigkeitswerte und Verarbeitungseigenschaften erreicht und die Festlegung der Bor¬ sten im Borstenträger mit einem Ankerplättchen aus Silber ermög¬ licht. Die erforderlichen Festigkeitswerte können auch durch Kaltverformung des Ankermaterials erreicht werden.The separate agents advantageously consist of silver with a degree of purity of more than about 99%, which ensures an extremely high oligodynamic effect. By special treatment of the silver material, e.g. The strength values and processing properties required for the process are achieved by cooling with nitrogen and the fixing of the bristles in the bristle carrier is made possible with an anchor plate made of silver. The required strength values can also be achieved by cold working the anchor material.
In einer vorteilhaften Ausgestaltung der Erfindung bestehen die separaten Mittel aus rostfreiem Stahl oder Titan. Diese Materia¬ lien weisen neben den erforderlichen Festigkeitswerten ebenfalls eine, wenn auch schachere fungizide und bakterizide Wirkung auf.In an advantageous embodiment of the invention, the separate means consist of stainless steel or titanium. In addition to the required strength values, these materials also have an albeit weaker fungicidal and bactericidal action.
Weitere Vorteile und Anwendungsmöglichkelten der Erfindung erge¬ ben sich aus nachfolgenden Beschreibungen des Ausführungsbei¬ spieles, das in den Zeichnungen näher dargestellt ist.Further advantages and possible applications of the invention result from the following descriptions of the exemplary embodiment which is shown in more detail in the drawings.
Es zeigen:Show it:
Fig. 1 ein Bürstenteil gemäß der Erfindung im Längsschnitt;1 shows a brush part according to the invention in longitudinal section.
Fig. 2 das Bürstenteil gemäß Fig. 1 1m Querschnitt.Fig. 2 shows the brush part of FIG. 1 1m cross section.
Ein Bürstenteil 20 für Zahnbürsten weist Borsten 24 auf, die in einem Borstenträger 22 einzeln oder in Form von Borstenbüscheln 26 angeordnet sind. Dabei sind die Borsten der Borstenbüschel 26 jeweils U-förmig gebogen in eine Bohrung 32 eingefügt. Die Fest¬ legung der Borstenbüschel 26 in den Bohrungen 32 erfolgt über se- parate Mittel 28, die zumindest teilweise aus Silber bestehen und vorzugsweise als Ankerplättchen 30 ausgebildet sind. Diese Anker¬ plättchen 30 sind jeweils mittig im U-förmig gebogenen Bereich 36 der Borstenbüschel 26 angeordnet und in Bereichen 34, die jeweils an die Bohrungen 32 angrenzen, verankert, insbesondere verklemmt. Damit sind die Borstenbüschel 26 in ihrer Position gegen Heraus¬ rutschen oder Herausziehen gesichert.A brush part 20 for toothbrushes has bristles 24 which are arranged in a bristle carrier 22 individually or in the form of tufts of bristles 26. The bristles of the bristle tufts 26 are each bent into a U-shape and inserted into a bore 32. The bristle tufts 26 are fixed in the bores 32 by means of ready means 28, which at least partially consist of silver and are preferably designed as anchor plates 30. These anchor plates 30 are each arranged centrally in the U-shaped region 36 of the bristle tufts 26 and anchored, in particular clamped, in regions 34 which in each case adjoin the bores 32. The bristle tufts 26 are thus secured in their position against slipping out or being pulled out.
Die Borsten 24 werden zur Festlegung mittels einer Stopfmaschine U-förmig gebogen in die Bohrungen 32 im Borstenträger 22 einge¬ bracht. Danach-wird das Ankerplättchen 30 mittig in die gebogene Borste 24 oder das Borstenbüschel 26 eingesetzt. Zwischen den Borsten 24 bzw. den Borsten 24 und der Bohrung 32 verbleiben Be¬ reiche 38, die durch die Borsten 24 bzw. Borstenbüschel 26 nicht gänzlich ausgefüllt werden. Da sich bedingt durch die Kapillar¬ wirkung zwischen den einzelnen Borsten 24 bzw. zwischen den Bor¬ sten 24 und den Bohrungen 32 in den Bereichen 38 während der Be¬ nutzung Wasser sammelt, welches nur selten von einer Benutzung der Zahnbürste zur nächstfolgenden Benutzung abtrocknet, sind diese Bereiche 38 eine Quelle für Bakterien. Durch das Material der Ankerplättchen 30, welches zumindest teilweise aus Silber be¬ steht, gehen bei Kontakt mit dem Wasser während und nach der Be¬ nutzung der Zahnbürste Silber-Ionen in Lösung. Diese Silber-Ionen beeinträchtigen den Stoffwechsel der Bakterien und führen mit dem Zusammenbruch des Stoffwechsels zum Absterben der Bakterien. Da- rüberhinaus wirken diese Silber-Ionen auch fungizid, d.h. sie vernichten ebenfalls Schimmelpilze, die sich gegebenenfalls im Bereich der Bohrungen 32 zwischen oder an den Borsten 24 anlagern könnten. Bedingt durch die Eigenschaften des Silbers, nur schwer Ionen in Lösung abzugeben, erfolgt eine natürliche Begrenzung der Ionenzahl in der Lösung, die jedoch ausreichend für eine bakteri¬ zide Wirkung ist. Auf die in der Mundhöhle vorhandene Flora nütz¬ licher Bakterien wirkt die Lösung jedoch nicht schädlich, da die positiven Silber-Ionen fast vollständig mit den negativen Ionen der Zahnpasta oder des Speichels reagieren. Die positiven Sil¬ ber-Ionen verbinden sich zum Teil mit den negativen Ionen der Zahnpasta oder des Speichels zu Silbersalzen, welche atis der Lö¬ sung ausfallen und mit dem Spülwasser während des Zähneputzens aus der Mundhöhle gespült werden. Das Bürstenteil 20 der Zahnbür¬ ste wird durch die Verwendung von Ankerplättchen 30 aus einem Ma¬ terial mit oligodynamischer Wirkung, z.B. aus einem mit einem Silberüberzug versehenen Ankerdraht, keimfrei und bleibt es trotz der anhaltenden Feuchtigkeit im kritischen Bereich zwischen den Borsten 24 bzw. in den Bereichen 38 zwischen den Borsten 24 und den Bohrungen 32. The bristles 24 are inserted into the bores 32 in the bristle carrier 22 in a U-shaped manner by means of a tamping machine. Then the anchor plate 30 is inserted centrally into the bent bristle 24 or the bristle tuft 26. Areas 38 remain between the bristles 24 or the bristles 24 and the bore 32 and are not completely filled by the bristles 24 or tufts 26. Since, due to the capillary action between the individual bristles 24 or between the bristles 24 and the bores 32 in the areas 38, water collects during use, which rarely dries from one use of the toothbrush for the next use, these areas 38 are a source of bacteria. Due to the material of the anchor plates 30, which is at least partially made of silver, silver ions dissolve on contact with the water during and after use of the toothbrush. These silver ions impair the metabolism of the bacteria and lead to the death of the bacteria with the breakdown of the metabolism. In addition, these silver ions also have a fungicidal action, ie they also destroy molds which could possibly accumulate in the area of the bores 32 between or on the bristles 24. Due to the properties of the silver that it is difficult to release ions in solution, there is a natural limitation of the number of ions in the solution, but this is sufficient for a bactericidal effect. However, the solution does not have a detrimental effect on the flora of useful bacteria present in the oral cavity, since the positive silver ions react almost completely with the negative ions of toothpaste or saliva. The positive silver ions combine in part with the negative ions of the toothpaste or saliva to form silver salts, which precipitate out of the solution and are rinsed out of the oral cavity with the rinsing water while brushing the teeth. The brush part 20 of the toothbrush is germ-free through the use of anchor plates 30 made of a material with an oligodynamic effect, for example an anchor wire provided with a silver coating, and remains in the critical area between the bristles 24 or in despite the persistent moisture the areas 38 between the bristles 24 and the bores 32.

Claims

Patentansprüche Claims
1. Zahnbürste mit einem Bürstenteil (20), welches einen Bor¬ stenträger (22) und daran festgelegte Borsten (24) aufweist, wobei das Bürstenteil (20) mit Bestandteilen aus einem Mate¬ rial mit oligodynamischer Wirkung versehen ist, dadurch gekennzeichnet, daß zur Festlegung der Borsten (24) im Borstenträger (22) separate Mittel (28) vorgesehen sind und diese separaten Mittel (28) aus dem Material mit oligo¬ dynamischer Wirkung bestehen.1. Toothbrush with a brush part (20) which has a bristle carrier (22) and bristles (24) fixed thereon, the brush part (20) being provided with components made of a material with an oligodynamic effect, characterized in that separate means (28) are provided for fixing the bristles (24) in the bristle carrier (22) and these separate means (28) consist of the material with an oligodynamic effect.
2. Zahnbürste nach Anspruch 1, dadurch gekennzeichnet, daß die separaten Mittel (28) zur Festlegung der Borsten (24) in Bohrungen (32) des Borstenträgers (22) als Ankerplättchen (30) ausgebildet, insbesondere in etwa mittig zwischen den Borsten (24) eines Borstenbüschels (26) angeordnet und in an die Bohrungen (32) jeweils angrenzenden Bereichen (34) des Borstenträgers (22) verankert sind.2. Toothbrush according to claim 1, characterized in that the separate means (28) for fixing the bristles (24) in bores (32) of the bristle carrier (22) as an anchor plate (30), in particular approximately in the center between the bristles (24 ) of a bristle tuft (26) and are anchored in areas (34) of the bristle carrier (22) adjacent to the bores (32).
3. Zahnbürste nach Anspruch 1 oder 2, dadurch gekennzeich¬ net, daß die separaten Mittel (28) aus einem mit Silber angereicherten Material, vorzugsweise einer Silber-Legierung mit einem Silberanteil von über etwa 70%, bestehen.3. Toothbrush according to claim 1 or 2, characterized gekennzeich¬ net that the separate means (28) consist of a material enriched with silver, preferably a silver alloy with a silver content of about 70%.
4. Zahnbürste nach einem der vorhergehenden Ansprüche, da¬ durch gekennzeichnet, daß die separaten Mittel (28) aus einer Silber-Kupfer-Legierung mit einem Silberanteil von et¬ wa 90% bis 97% und einem Kupferanteil von etwa 10% bis 3% oder einer Silber-Titan-Legierung mit einem Silberanteil von etwa 70% und einem Titananteil von etwa 30% bestehen.4. Toothbrush according to one of the preceding claims, characterized in that the separate means (28) made of a silver-copper alloy with a silver content of approximately 90% to 97% and a copper content of approximately 10% to 3% or a silver-titanium alloy with a silver content of approximately 70% and a titanium content of approximately 30%.
5. Zahnbürste nach Anspruch 1 oder 2, dadurch gekennzeich¬ net, daß die separaten Mittel (28) mit einem Überzug aus im wesentlichen reinem Silber versehen sind. 5. Toothbrush according to claim 1 or 2, characterized gekennzeich¬ net that the separate means (28) are provided with a coating of substantially pure silver.
6. Zahnbürste nach Anspruch 5, dadurch gekennzeichnet, daß der Silberüberzug eine Dicke von 5 bis 50, insbesondere 5 bis 20 Mikrometer aufweist.6. Toothbrush according to claim 5, characterized in that the silver coating has a thickness of 5 to 50, in particular 5 to 20 microns.
7. Zahnbürste nach Anspruch 1 oder 2, dadurch gekennzeich¬ net, daß die separaten Mittel (28) aus Silber mit einem Reinheitsgrad von mehr als etwa 99% bestehen.7. Toothbrush according to claim 1 or 2, characterized gekennzeich¬ net that the separate means (28) consist of silver with a degree of purity of more than about 99%.
8. Zahnbürste nach Anspruch 1 oder 2, dadurch gekennzeich¬ net, daß die separaten Mittel (28) aus rostfreiem Stahl oder Titan bestehen.8. Toothbrush according to claim 1 or 2, characterized gekennzeich¬ net that the separate means (28) consist of stainless steel or titanium.
9. Zahnbürste nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die separaten Mittel (28) eine Zug-9. Toothbrush according to one of the preceding claims, characterized in that the separate means (28) a pull
2 festigkeit von ungefähr 500 N/mm oder mehr aufweisen. 2 have strength of approximately 500 N / mm or more.
EP94915131A 1993-05-26 1994-04-27 Head for a toothbrush Expired - Lifetime EP0700259B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4317407A DE4317407C1 (en) 1993-05-26 1993-05-26 Brush part for a toothbrush
DE4317407 1993-05-26
PCT/EP1994/001326 WO1994027467A1 (en) 1993-05-26 1994-04-27 Head for a toothbrush

Publications (2)

Publication Number Publication Date
EP0700259A1 true EP0700259A1 (en) 1996-03-13
EP0700259B1 EP0700259B1 (en) 1997-06-11

Family

ID=6488885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94915131A Expired - Lifetime EP0700259B1 (en) 1993-05-26 1994-04-27 Head for a toothbrush

Country Status (11)

Country Link
US (1) US6009589A (en)
EP (1) EP0700259B1 (en)
JP (1) JPH08511180A (en)
AT (1) ATE154212T1 (en)
AU (1) AU6649394A (en)
CA (1) CA2163367C (en)
DE (2) DE4317407C1 (en)
DK (1) DK0700259T3 (en)
ES (1) ES2105709T3 (en)
HK (1) HK1000345A1 (en)
WO (1) WO1994027467A1 (en)

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Also Published As

Publication number Publication date
JPH08511180A (en) 1996-11-26
ES2105709T3 (en) 1997-10-16
EP0700259B1 (en) 1997-06-11
DE4317407C1 (en) 1994-08-18
DE59403128D1 (en) 1997-07-17
AU6649394A (en) 1994-12-20
ATE154212T1 (en) 1997-06-15
US6009589A (en) 2000-01-04
CA2163367A1 (en) 1994-12-08
DK0700259T3 (en) 1998-01-05
CA2163367C (en) 2000-01-18
WO1994027467A1 (en) 1994-12-08
HK1000345A1 (en) 1998-03-06

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