EP0654231A1 - Process for producing a toothbrush - Google Patents

Process for producing a toothbrush Download PDF

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Publication number
EP0654231A1
EP0654231A1 EP94117968A EP94117968A EP0654231A1 EP 0654231 A1 EP0654231 A1 EP 0654231A1 EP 94117968 A EP94117968 A EP 94117968A EP 94117968 A EP94117968 A EP 94117968A EP 0654231 A1 EP0654231 A1 EP 0654231A1
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EP
European Patent Office
Prior art keywords
bristle
bristles
toothbrush
folded
bundles
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.)
Withdrawn
Application number
EP94117968A
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German (de)
French (fr)
Inventor
Berthold Meyer
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.)
M&C Schiffer GmbH
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M&C Schiffer GmbH
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Filing date
Publication date
Application filed by M&C Schiffer GmbH filed Critical M&C Schiffer GmbH
Publication of EP0654231A1 publication Critical patent/EP0654231A1/en
Withdrawn legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46DMANUFACTURE OF BRUSHES
    • A46D9/00Machines for finishing brushes
    • A46D9/02Cutting; Trimming
    • 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S47/00Plant husbandry
    • Y10S47/904Openwork container for a growing medium, e.g. wire basket

Definitions

  • the invention relates to a method for producing a bristle field of a toothbrush formed from a plurality of folded bristle bundles made of plastic bristles, in which the bristle bundle is first separated from a bristle pack with a predetermined length of the bristles, folded by means of a flat plunger and an anchor and successively into blind holes through these of the bristle field of the toothbrush are pressed in and firmly anchored there.
  • toothbrushes have required for dental reasons that they should ensure, in addition to optimal cleaning of the teeth, gentle treatment of the gums.
  • the bristles made of plastic must not have any sharp edges, fissures or the like at their free ends on the use side, since this can lead to injury to the gums.
  • the typical feature of a high quality toothbrush is that the ends of the individual bristles are rounded. This prevents injury to the gums and the desired massaging effect of the rounded bristle ends comes into its own on the gums.
  • the ends of the bristles on the usage side are preferably rounded off by a type of grinding process, it should always be ensured that all bristles of a bundle or an entire bristle field are rounded evenly.
  • the bristle bundles having a greater length are first all cut to the same length and only then are the free bristle ends rounded off.
  • the individual bristles of a bristle bundle are rounded off at the ends on the usage side before they are inserted into the toothbrush.
  • the aim today is that the individual bristle bundles and / or the individual bristles in the bristle bundles have a different length. This should increase the cleaning effect and improve the massage effect, especially in the critical interdental spaces.
  • High / low cuts that can run lengthways or crossways, wave cuts, V cuts and saw cuts are known.
  • This different length of the bristles can be easily achieved in the process in which the individual bristle bundles are cut off from an endless bristle strand, rounded on the usage side and then, if necessary after a fusion of the fastening-side ends, inserted or poured into a toothbrush.
  • the lower-lying bristle ends are either not or only insufficiently grasped by the processing tool, so that the lower-lying bristle ends can still have sharp edges, fissures or the like. This means that in this manufacturing process, the desired quality of a high-quality toothbrush - the individual bristle ends are optimally rounded - cannot be achieved through the profiled cut when cutting the bristles or bundles of bristles of a bristle field. It should also be taken into account that when rounding off the bristle ends of a bristle field of a toothbrush, dust is produced which can become lodged in the bristle field and which can no longer be completely removed even with great effort.
  • the invention is therefore based on the object of disclosing a method for producing a bristle field of a toothbrush formed from a plurality of folded bristle bundles made of plastic bristles, in which, even with conventional production of the bristle field - separation, folding and fastening of the bristle bundles by means of an anchor - when the bristle field is profiled with different bristle lengths an optimal rounding of the Bristle ends is possible.
  • bristle bundle 1 of the drawing shows the free end region of a bristle bundle 1, which consists of a plurality of bristles 2 made of plastic.
  • bristle bundle 1 For better clarity of the bristle bundle 1, only eight bristles 2 are drawn on a much larger scale.
  • the bristle bundle 1 was now produced in a manner known per se in such a way that bundles with the same number of bristles 2 are separated from a bristle pack, the number of bristles 2 of these bundles being exactly half of the bristles 2 of the finished bundle 1.
  • the length of the individual bristles 2 of the bristle pack corresponds to a precisely specified length.
  • all bristles 2 of the bristle pack are optimally rounded at both ends, this rounding being carried out either at the manufacturer of the bristle pack or when dressing the bristle packs. This rounding of the ends of the bristles 2 can take place either in the entire bristle pack or in individual bundles. It is advantageous if the brushes of a bristle bundle are rounded off on the way from the separation from the bristle bundle to the corresponding blind hole.
  • the isolated bundles of bristles are then folded using an anchor made of metal, so that the finished bundles 1 are formed. These finished bundles 1 are then pressed or stuffed over the anchor into blind holes in the bristle field of the toothbrush, the respective bristle bundle 1 being firmly secured in the respective blind hole by the metallic anchor. Conventional bristle machines can therefore be used to produce the bristle field of the toothbrush.
  • the ends of the bristles 2 are not necessarily in one plane, as can be seen particularly clearly in FIG. 1.
  • the deviation of the individual bristle ends from an imaginary plane can be between 0.5 and 2.0 mm.
  • FIG. 2 shows six bristle bundles 1, 1 a, preferably lying one behind the other in one plane, which corresponds in part to the longitudinal section through the bristle field of a toothbrush.
  • the two inner, shorter bristle bundles 1 correspond to the bristle bundle 1 of FIG. 1, in which the aim is for the ends of all bristles 2 to be in one plane if possible.
  • the two outer and the two middle bristle bundles 1 a which originate from another bristle pack with a larger bristle length, have an outwardly or inwardly rising contour of the individual bristles 2.
  • This contour can be achieved in a simple manner in that the bundles formed by individualization and forming the individual bristle bundles 1 a are folded slightly outside the center with a plurality of bristles. This folding depends on the position of the bristle bundle 1a in the bristle field either above or below the center of the bristle bundle 1a.
  • the ends of the individual bristles 2 can deviate by a measure of approximately 0.5 to 2.0 mm from a predetermined level or a predetermined profile, which may be desirable for the massage and cleaning effect sought.

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  • Brushes (AREA)

Abstract

The invention relates to a process for producing a bristle zone of a toothbrush, formed from a plurality of folded bristle tufts of synthetic bristles, in which the bristle tufts are firstly separated from a bristle stack with a predetermined bristle length, are folded by means of a flat ram and an anchor and are pressed by the latter one after the other into blind bores in the bristle zone of the toothbrush and are firmly anchored there. In order to allow optimum rounding of the bristle ends even in conventional production of the bristle zone - separating, folding and attaching the bristle tufts by means of an anchor - with a profiling of the bristle zone with different bristle lengths and to rule out the fact that the dust occuring during the rounding of the bristles can contact the toothbrush, the bristles are already rounded at both ends before they are folded and anchored. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines aus mehreren gefalteten Borstenbündeln aus Kunststoffborsten gebildeten Borstenfeldes einer Zahnbürste, bei dem die Borstenbündel zunächst aus einem Borstenpaket mit vorgegebener Länge der Borsten vereinzelt, mittels eines flachen Stößels und eines Ankers gefaltet und durch diese nacheinander in Sacklöcher des Borstenfeldes der Zahnbürste eingepreßt und dort fest verankert werden.The invention relates to a method for producing a bristle field of a toothbrush formed from a plurality of folded bristle bundles made of plastic bristles, in which the bristle bundle is first separated from a bristle pack with a predetermined length of the bristles, folded by means of a flat plunger and an anchor and successively into blind holes through these of the bristle field of the toothbrush are pressed in and firmly anchored there.

Bei Zahnbürsten wird aus zahnmedizinischen Gründen seit einiger Zeit gefordert, daß dieselben neben einer optimalen Reinigung der Zähne auch eine schonende Behandlung des Zahnfleisches sicherstellen sollen. Dazu dürfen die aus Kunststoff bestehenden Borsten an ihren nutzungsseitigen freien Enden keine scharfen Kanten, Aufspleißungen oder dergleichen aufweisen, da dies zu einer Verletzung des Zahnfleisches führen kann. Aus diesem Grunde besteht das typische Merkmal einer qualitativ hochwertigen Zahnbürste darin, daß die nutzungsseitigen Enden der einzelnen Borsten gerundet sind. Dadurch wird ein Verletzen des Zahnfleisches verhindert und die angestrebte massierende Wirkung der gerundeten Borstenenden kommt an dem Zahnfleisch voll zur Geltung.For some time now, toothbrushes have required for dental reasons that they should ensure, in addition to optimal cleaning of the teeth, gentle treatment of the gums. For this purpose, the bristles made of plastic must not have any sharp edges, fissures or the like at their free ends on the use side, since this can lead to injury to the gums. For this reason, the typical feature of a high quality toothbrush is that the ends of the individual bristles are rounded. This prevents injury to the gums and the desired massaging effect of the rounded bristle ends comes into its own on the gums.

Das Abrunden der nutzungsseitigen Enden von Borsten erfolgt vorzugsweise durch eine Art Schleifvorgang, wobei immer sichergestellt sein soll, daß alle Borsten eines Bündels bzw. eines gesamten Borstenfeldes gleichmäßig gerundet werden. Bei einer Zahnbürste, bei der die einzelnen Borstenbündel gefaltet und jeweils mittels eines Ankers im Borstenfeld der Zahnbürste gesichert sind, werden die eine größere Länge aufweisenden Borstenbündel zunächst alle auf eine gleiche Länge geschnitten und erst dann die freien Borstenenden abgerundet. Bei einer anderen Herstellung eines Borstenfeldes, bei dem die einzelnen Borstenbündel von einem Endlosborstenstrang abgetrennt werden, werden die einzelnen Borsten eines Borstenbündels bereits vor ihren Einsätzen in die Zahnbürste an den nutzungsseitigen Enden abgerundet.The ends of the bristles on the usage side are preferably rounded off by a type of grinding process, it should always be ensured that all bristles of a bundle or an entire bristle field are rounded evenly. In the case of a toothbrush in which the individual bristle bundles are folded and each secured by means of an anchor in the bristle area of the toothbrush, the bristle bundles having a greater length are first all cut to the same length and only then are the free bristle ends rounded off. In another production of a bristle field, in which the individual bristle bundles are separated from an endless bristle strand, the individual bristles of a bristle bundle are rounded off at the ends on the usage side before they are inserted into the toothbrush.

Aus zahnmedizinischer Sicht wird heute angestrebt, daß die einzelnen Borstenbündel und/oder die einzelnen Borsten in den Borstenbündeln eine unterschiedliche Länge aufweisen. Dadurch soll insbesondere in den kritischen Zahnzwischenräumen die Reinigungswirkung erhöht und die Massagewirkung verbessert werden. Dabei sind Hoch-/Tiefschnitte, die längs oder quer verlaufen können, Wellenschnitte, V-Schnitte und Sägeschnitte bekannt. Diese unterschiedliche Länge der Borsten läßt sich bei dem Verfahren, bei dem die einzelnen Borstenbündel von einem Endlosborstenstrang abgeschnitten, nutzungsseitig gerundet und dann, gegebenenfalls nach einem Verschmelzen der befestigungsseitigen Enden in eine Zahnbürste eingesetzt bzw. eingegossen werden, problemlos erreichen.From a dental point of view, the aim today is that the individual bristle bundles and / or the individual bristles in the bristle bundles have a different length. This should increase the cleaning effect and improve the massage effect, especially in the critical interdental spaces. High / low cuts that can run lengthways or crossways, wave cuts, V cuts and saw cuts are known. This different length of the bristles can be easily achieved in the process in which the individual bristle bundles are cut off from an endless bristle strand, rounded on the usage side and then, if necessary after a fusion of the fastening-side ends, inserted or poured into a toothbrush.

Bei einem Verfahren zur Herstellung einer Zahnbürste, bei dem die Borstenbündel zunächst aus einem Borstenpaket mit vorgegebener Länge der Borsten vereinzelt, mittels eines Ankers gefaltet und durch den Anker nacheinander in die Sacklöcher des Borstenfeldes der Zahnbürste eingepreßt und verankert werden, führt dies zu einer Beeinträchtigung der Abrundung. Bekanntlich werden bei diesem Verfahren die nutzungsseitigen Borstenenden der Borsten nach einem Schnitt in einem Arbeitsgang abgerundet. Verläuft dieser Schnitt nun nicht in einer einzigen Ebene, werden lediglich die längeren Borsten eines Borstenbündels bzw. des Borstenfeldes optimal gerundet. Die tiefer gelegenen Borstenenden werden von dem Bearbeitungswerkzeug entweder nicht oder nur unzureichend erfaßt, so daß die tieferliegenden Borstenenden noch scharfe Kanten, Aufspleißungen oder dgl. aufweisen können. Dies bedeutet, daß bei diesem Herstellungsverfahren durch den profilierten Schnitt bei dem Zuschnitt der Borsten oder Borstenbündel eines Borstenfeldes die angestrebte Qualität einer hochwertigen Zahnbürste - die einzelnen Borstenenden sind optimal abgerundet - nicht erreicht werden kann. Dabei ist auch zu berücksichtigen, daß beim Abrunden der Borstenenden eines Borstenfeldes einer Zahnbürste Staub anfällt, der sich im Borstenfeld festsetzen kann und der selbst mit großem Aufwand nicht mehr vollständig zu entfernen ist.In a method for producing a toothbrush, in which the bristle bundle is initially made up of a bristle pack Given the predetermined length of the bristles, folded by means of an anchor and pressed and anchored one after the other into the blind holes of the bristle field of the toothbrush by the anchor, this leads to an impairment of the rounding. It is known that in this method the bristle ends of the bristles on the use side are rounded off after a cut in one operation. If this cut does not run in a single plane, only the longer bristles of a bristle bundle or the bristle field are optimally rounded. The lower-lying bristle ends are either not or only insufficiently grasped by the processing tool, so that the lower-lying bristle ends can still have sharp edges, fissures or the like. This means that in this manufacturing process, the desired quality of a high-quality toothbrush - the individual bristle ends are optimally rounded - cannot be achieved through the profiled cut when cutting the bristles or bundles of bristles of a bristle field. It should also be taken into account that when rounding off the bristle ends of a bristle field of a toothbrush, dust is produced which can become lodged in the bristle field and which can no longer be completely removed even with great effort.

Der Erfindung liegt deshalb die Aufgabe zugrunde, ein Verfahren zur Herstellung eines aus mehreren gefalteten Borstenbündeln aus Kunststoffborsten gebildeten Borstenfeldes einer Zahnbürste aufzuzeigen, bei dem auch bei konventioneller Herstellung des Borstenfeldes - Vereinzelung, Faltung und Befestigung der Borstenbündel mittels eines Ankers - bei einer Profilierung des Borstenfeldes mit unterschiedlichen Borstenlängen eine optimale Abrundung der Borstenenden möglich ist. Darüber hinaus soll ausgeschlossen werden, daß der bei der Abrundung der Borsten anfallende Staub an die Zahnbürste gelangen kann.The invention is therefore based on the object of disclosing a method for producing a bristle field of a toothbrush formed from a plurality of folded bristle bundles made of plastic bristles, in which, even with conventional production of the bristle field - separation, folding and fastening of the bristle bundles by means of an anchor - when the bristle field is profiled with different bristle lengths an optimal rounding of the Bristle ends is possible. In addition, it is to be excluded that the dust accumulating when the bristles are rounded can reach the toothbrush.

Zur Lösung dieser Aufgabe wird gemäß der Erfindung bei einem Verfahren der eingangs beschriebenen Gattung vorgeschlagen, daß die Borsten bereits vor ihrer Faltung und Verankerung an beiden Enden abgerundet werden.To achieve this object, it is proposed according to the invention in a method of the type described in the introduction that the bristles are rounded off at both ends before they are folded and anchored.

Dies bedeutet, daß die Borstenenden nicht mehr nach der Bildung des Borstenfeldes der Zahnbürste, sondern bereits vorher an ihren Enden abgerundet werden. Dadurch ist es möglich, auch bei einem solchen Herstellungsverfahren einer Zahnbürste bei einer Profilierung der Nutzungsfläche des Borstenfeldes eine optimale Abrundung aller Borstenenden eines Borstenfeldes zu erreichen. Der bei dem Abrundungsvorgang anfallende Staub kann damit nicht mehr an die Zahnbürste gelangen.This means that the bristle ends are no longer rounded off at their ends after the bristle field of the toothbrush has formed. This makes it possible to achieve an optimal rounding of all bristle ends of a bristle field even with such a manufacturing method of a toothbrush when profiling the usable area of the bristle field. The dust generated during the rounding process can no longer reach the toothbrush.

Weitere Merkmale eines Verfahrens gemäß der Erfindung sind in den Ansprüchen 2 - 8 offenbart.Further features of a method according to the invention are disclosed in claims 2-8.

Die Erfindung wird nachfolgend anhand in einer Zeichnung dargestellter Ausführungsbeispiele näher erläutert. Dabei zeigen

Fig. 1
den Endbereich eines durch Faltung gebildeten und bereits in eine Zahnbürste eingesetzten Borstenbündels und
Fig. 2
den Endbereich von sechs in einer Ebene einer Zahnbürste eingesetzten und ebenfalls durch Faltung erzeugten Borstenbündel.
The invention is explained in more detail below with reference to exemplary embodiments shown in a drawing. Show
Fig. 1
the end region of a bristle bundle formed by folding and already inserted in a toothbrush and
Fig. 2
the end region of six bristle bundles inserted in a plane of a toothbrush and also produced by folding.

In der Fig. 1 der Zeichnung ist der freie Endbereich eines Borstenbündels 1 gezeigt, welches aus einer Vielzahl von Borsten 2 aus Kunststoff besteht. Dabei sind zur besseren Deutlichkeit des Borstenbündels 1 nur acht Borsten 2 in erheblich größerem Maßstab gezeichnet.1 of the drawing shows the free end region of a bristle bundle 1, which consists of a plurality of bristles 2 made of plastic. For better clarity of the bristle bundle 1, only eight bristles 2 are drawn on a much larger scale.

Das Borstenbündel 1 wurde nun in an sich bekannter Weise in der Weise hergestellt, daß von einem Borstenpaket nacheinander Bündel mit gleicher Anzahl von Borsten 2 vereinzelt werden, wobei die Anzahl der Borsten 2 dieser Bündel genau die Hälfte der Borsten 2 des fertigen Bündels 1 ist. Die Länge der einzelnen Borsten 2 des Borstenpaketes entspricht einer genau vorgegebenen Länge. Zusätzlich sind alle Borsten 2 des Borstenpaketes an ihren beiden Enden optimal abgerundet, wobei diese Abrundung wahlweise entweder beim Hersteller des Borstenpaketes oder beim Zurichten der Borstenpakte durchgeführt wird. Diese Abrundung der Enden der Borsten 2 kann dabei entweder im gesamten Borstenpaket oder in einzelnen Bündeln erfolgen. Es ist vorteilhaft, wenn die Bürsten eines Borstenbündels auf dem Weg desselben von der Separierung aus dem Borstenpaket zum entsprechenden Sackloch abgerundet werden.The bristle bundle 1 was now produced in a manner known per se in such a way that bundles with the same number of bristles 2 are separated from a bristle pack, the number of bristles 2 of these bundles being exactly half of the bristles 2 of the finished bundle 1. The length of the individual bristles 2 of the bristle pack corresponds to a precisely specified length. In addition, all bristles 2 of the bristle pack are optimally rounded at both ends, this rounding being carried out either at the manufacturer of the bristle pack or when dressing the bristle packs. This rounding of the ends of the bristles 2 can take place either in the entire bristle pack or in individual bundles. It is advantageous if the brushes of a bristle bundle are rounded off on the way from the separation from the bristle bundle to the corresponding blind hole.

Die vereinzelten Borstenbündel werden anschließend mittels eines aus Metall bestehenden Ankers gefaltet, so daß die fertigen Bündel 1 entstehen. Diese fertigen Bündel 1 werden dann über den Anker in Sacklöcher des Borstenfeldes der Zahnbürste gepreßt bzw. gestopft, wobei das jeweilige Borstenbündel 1 durch den metallischen Anker fest im jeweiligen Sackloch gesichert ist. Zur Herstellung des Borstenfeldes der Zahnbürste können somit konventionelle Beborstungsmaschinen eingesetzt werden.The isolated bundles of bristles are then folded using an anchor made of metal, so that the finished bundles 1 are formed. These finished bundles 1 are then pressed or stuffed over the anchor into blind holes in the bristle field of the toothbrush, the respective bristle bundle 1 being firmly secured in the respective blind hole by the metallic anchor. Conventional bristle machines can therefore be used to produce the bristle field of the toothbrush.

Durch die Faltung der Borsten bzw. der vereinzelten Bündel zu dem Borstenbündel 1 befinden sich zwangsläufig die Enden der Borsten 2 nicht in einer Ebene, wie dies die Figur 1 besonders deutlich erkennen läßt. Die Abweichung der einzelnen Borstenenden aus einer gedachten Ebene kann dabei zwischen 0,5 und 2,0 mm betragen. Diese unterschiedlich langen Borsten 2 des Borstenbündels 1 führen bereits zu der angestrebten, verbesserten Massage des Zahnfleisches und einer erhöhten Reinigung, insbesondere der Zahnzwischenräume. Die längeren Borsten 2 haben schon bei einem geringen Anpreßdruck die Möglichkeit, in die Zahnzwischräume zu gelangen, während die kürzeren Borsten 2 nur die Zahnoberfläche reinigen.Due to the folding of the bristles or the isolated bundles to form the bristle bundle 1, the ends of the bristles 2 are not necessarily in one plane, as can be seen particularly clearly in FIG. 1. The deviation of the individual bristle ends from an imaginary plane can be between 0.5 and 2.0 mm. These bristles 2 of the bristle bundle 1 of different lengths already lead to the desired, improved massage of the gums and increased cleaning, in particular of the interdental spaces. The longer bristles 2 have the possibility of entering the interdental spaces even at a low contact pressure, while the shorter bristles 2 only clean the tooth surface.

Auch bei dieser Art der Herstellung ist eine Profilierung des Borstenfeldes bzw. einzelner Borstenbündel 1 möglich, wie dies in Fig. 2 dargestellt ist. Dabei zeigt die Fig. 2 sechs vorzugsweise in einer Ebene hintereinanderliegende Borstenbündel 1, 1a, was auszugsweise dem Längsschnitt durch das Borstenfeld einer Zahnbürste entspricht. Jeweils die beiden inneren, kürzeren Borstenbündel 1 entsprechen dabei dem Borstenbündel 1 der Figur 1, bei dem angestrebt ist, daß sich die Enden aller Borsten 2 möglichst in einer Ebene befinden. Die beiden äußeren und die beiden mittleren Borstenbündel 1a, die aus einem anderen Borstenpaket mit größerer Borstenlänge stammen, weisen eine nach außen bzw. innen ansteigende Kontur der einzelnen Borsten 2 auf. Diese Kontur läßt sich in einfacher Weise dadurch erreichen, daß die die einzelnen Borstenbündel 1a bildenden, durch Vereinzelung hergestellten Bündel mit mehreren Borsten geringfügig außerhalb der Mitte gefaltet werden. Diese Faltung erfolgt in Abhängigkeit von der Lage der Borstenbündel 1a im Borstenfeld entweder oberhalb oder unterhalb der Mitte des Borstenbündels 1a. Auch hierbei können die Enden der einzelnen Borsten 2 um ein Maß von etwa 0,5 bis 2,0 mm von einer vorgegebenen Ebene bzw. einem vorgegebenen Profil abweichen, was für die angestrebte Massage- und Reinigungswirkung erwünscht sein kann.Profiling of the bristle field or individual bristle bundle 1 is also possible with this type of production, as shown in FIG. 2. 2 shows six bristle bundles 1, 1 a, preferably lying one behind the other in one plane, which corresponds in part to the longitudinal section through the bristle field of a toothbrush. In each case the two inner, shorter bristle bundles 1 correspond to the bristle bundle 1 of FIG. 1, in which the aim is for the ends of all bristles 2 to be in one plane if possible. The two outer and the two middle bristle bundles 1 a, which originate from another bristle pack with a larger bristle length, have an outwardly or inwardly rising contour of the individual bristles 2. This contour can be achieved in a simple manner in that the bundles formed by individualization and forming the individual bristle bundles 1 a are folded slightly outside the center with a plurality of bristles. This folding depends on the position of the bristle bundle 1a in the bristle field either above or below the center of the bristle bundle 1a. Here, too, the ends of the individual bristles 2 can deviate by a measure of approximately 0.5 to 2.0 mm from a predetermined level or a predetermined profile, which may be desirable for the massage and cleaning effect sought.

Claims (8)

Verfahren zur Herstellung eines aus mehreren gefalteten Borstenbündeln aus Kunststoffborsten gebildeten Borstenfeldes einer Zahnbürste, bei dem die Borstenbündel zunächst aus einem Borstenpaket mit vorgegebener Länge der Borsten vereinzelt, mittels eines flachen Stößels und eines Ankers gefaltet und durch diese nacheinander in Sacklöcher des Borstenfeldes der Zahnbürste eingepreßt und dort fest verankert werden,
dadurch gekennzeichnet,
daß die Borsten bereits vor ihrer Faltung und Verankerung an beiden Enden abgerundet werden.
Method for producing a bristle field of a toothbrush formed from a plurality of folded bristle bundles made of plastic bristles, in which the bristle bundle is first separated from a bristle bundle with a predetermined length of the bristles, folded by means of a flat plunger and an anchor and pressed through them successively into blind holes in the bristle field of the toothbrush and be firmly anchored there,
characterized,
that the bristles are rounded at both ends before they are folded and anchored.
Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß die Borsten eines Borstenbündels gemeinsam abgerundet werden.
Method according to claim 1,
characterized,
that the bristles of a bundle of bristles are rounded off together.
Verfahren nach Anspruch 2,
dadurch gekennzeichnet,
daß die Borsten eines Borstenbündels in der Beborstungsmaschine auf dem Transportweg desselben bis zum Einsetzen in das entsprechende Sackloch abgerundet werden.
Method according to claim 2,
characterized,
that the bristles of a bundle of bristles are rounded off in the bristling machine on the transport path thereof until they are inserted into the corresponding blind hole.
Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß die Borsten des Borstenpaketes gemeinsam abgerundet werden.
Method according to claim 1,
characterized,
that the bristles of the bristle pack are rounded off together.
Verfahren nach mindestens einem der Ansprüche 1 - 4,
dadurch gekennzeichnet,
daß zumindest ein Teil der Borstenbündel eines Borstenfeldes außermittig gefaltet werden.
Method according to at least one of claims 1-4,
characterized,
that at least part of the bristle bundles of a bristle field are folded off-center.
Verfahren nach Anspruch 5,
dadurch gekennzeichnet,
daß die Borstenbündel oberhalb oder unterhalb der Mitte gefaltet werden.
Method according to claim 5,
characterized,
that the bristle bundles are folded above or below the middle.
Verfahren nach mindestens einem der Ansprüche 1 - 6,
dadurch gekennzeichnet,
daß die zu faltenden Borstenbündel aus mindestens zwei Borstenpaketen mit unterschiedlicher Borstenlänge vereinzelt werden.
Method according to at least one of claims 1-6,
characterized,
that the bristle bundles to be folded are separated from at least two bristle packs with different bristle lengths.
Verfahren nach mindestens einem der Ansprüche 1 - 7,
dadurch gekennzeichnet,
daß ein Borstenfeld mit mehreren Borstenbündeln unterschiedlicher Faltung gestopft wird.
Method according to at least one of claims 1-7,
characterized,
that a bristle field with several bristle bundles of different folds is stuffed.
EP94117968A 1993-11-16 1994-11-15 Process for producing a toothbrush Withdrawn EP0654231A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4339040 1993-11-16
DE4339040A DE4339040A1 (en) 1993-11-16 1993-11-16 Method of making a toothbrush

Publications (1)

Publication Number Publication Date
EP0654231A1 true EP0654231A1 (en) 1995-05-24

Family

ID=6502678

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (3)

Country Link
US (1) US5518300A (en)
EP (1) EP0654231A1 (en)
DE (1) DE4339040A1 (en)

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DE19743556A1 (en) * 1997-10-01 1999-04-08 Schiffer Fa M & C Method and device for producing a toothbrush
DE19918959A1 (en) 1999-04-27 2000-11-02 Pedex & Co Gmbh Process for processing bristles and bristle products with such bristles
DE19924043A1 (en) * 1999-05-26 2000-11-30 Ludwig Gergel Toothbrush has suction openings in brush head connectable to underpressure through pipeline in handle to remove bacteria from mouth
AU2001272072A1 (en) * 2000-02-15 2001-08-27 Smithkline Beecham Gmbh & Co. Kg Brush part for an electric toothbrush
US6354911B1 (en) 2000-05-26 2002-03-12 Moll Industries, Inc. Method and apparatus for end-rounding bristles
DE10058915A1 (en) * 2000-11-20 2002-06-06 Attomol Gmbh Molekulare Diagno Determining nucleic acid sequence, useful for characterizing single-nucleotide polymorphisms, by incubating with probe in presence of phosphorothioate nucleotide and exonuclease
US6536979B1 (en) 2001-11-28 2003-03-25 Thomas A. Kenny Safe water toothbrush assembly
DE102005004661B4 (en) * 2005-02-02 2017-02-02 Zahoransky Ag Method and machine for making brushes
US9848959B2 (en) 2007-07-05 2017-12-26 Orthoaccel Technologies, Inc. Massaging or brushing bite plates
US8308246B2 (en) * 2010-03-19 2012-11-13 Chung Tae Sang Method for manufacturing toothbrush and toothbrush manufactured by the method

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Also Published As

Publication number Publication date
DE4339040A1 (en) 1995-05-18
US5518300A (en) 1996-05-21

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