EP1142505A2 - Method of brush manufacture - Google Patents

Method of brush manufacture Download PDF

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Publication number
EP1142505A2
EP1142505A2 EP01107718A EP01107718A EP1142505A2 EP 1142505 A2 EP1142505 A2 EP 1142505A2 EP 01107718 A EP01107718 A EP 01107718A EP 01107718 A EP01107718 A EP 01107718A EP 1142505 A2 EP1142505 A2 EP 1142505A2
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EP
European Patent Office
Prior art keywords
brush body
plate
recess
platelet
ultrasonic welding
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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
EP01107718A
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German (de)
French (fr)
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EP1142505A3 (en
EP1142505B1 (en
Inventor
Bart Gerard Boucherie
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GB Boucherie NV
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GB Boucherie NV
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Publication date
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Publication of EP1142505A2 publication Critical patent/EP1142505A2/en
Publication of EP1142505A3 publication Critical patent/EP1142505A3/en
Application granted granted Critical
Publication of EP1142505B1 publication Critical patent/EP1142505B1/en
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    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/04—Machines for inserting or fixing bristles in bodies

Definitions

  • the invention relates to a method for connecting tufts of bristles provided plastic plates with brush bodies from, in particular the same, plastic by means of ultrasonic welding or gluing.
  • the invention provides a method with a reliable connection between the carrier plate and the brush body is guaranteed without an undesirably large gap remains between carrier plate and brush body.
  • the connection is made between the plastics of the plate and the brush body Ultrasonic welding.
  • the plate On the peripheral edge of the plate, one becomes that Brush body shaped edge shaped during ultrasonic welding acts as an energy concentrator.
  • the welding is therefore done with high precision, so that the plate also in mass production, such as For example, with toothbrushes, attached to the brush body with a precise fit can be.
  • the edge is preferably formed such that it tapers towards the brush body.
  • the edge is at her brought tapered end at the bottom of the recess so that the welded joint is created at the bottom of the recess.
  • the welding process is the plate against the bottom of the recess of the brush body pressed.
  • This Approach can extend over the entire circumference of the plate or only over part of the same, preferably over that Part of a toothbrush up to the neck of the brush body reaches in. At this point, bending stresses occur which is a gap remaining approximately between the plate and the brush body is opened when the toothbrush head is bent back in use becomes.
  • This approach is also preferred with one against the brush body facing, tapered edge provided during ultrasonic welding acts as an energy concentrator.
  • An approximately remaining between the plate and the brush body Gap can be closed by post-processing, in particular by filling with a suitable plastic mass.
  • the brush body already equipped with the plate in an injection mold can be introduced with which an overmolding the gap is placed in order to completely fill it and to conclude.
  • the plate fits snugly into a recess in the brush body used and fixed there with an adhesive. Also at this embodiment of the method can be approximately between platelets and brush body remaining gap by injection molding in one Injection mold to be closed.
  • the platelets through a combination of ultrasonic welding and gluing to the Brush body attached.
  • the load-bearing attachment the plate by welding to the bottom of the recess of the Brush body done while the glue is in between platelets and brush body remaining gap is introduced and this fills.
  • a recess 12 is formed in the head area of a toothbrush body 10, a recess 12 is formed.
  • a carrier plate 14 is inserted appropriately.
  • the carrier plate 14 is provided with a number of through holes, wherein tufts of bristles 16 are inserted and attached.
  • an edge 18 is formed, which is to Bottom of the recess 12 tapers.
  • the brush body 10 and that Platelets 14 are preferably made of the same plastic, for example Polypropylene.
  • the welding takes place with high precision, so that a very precise fit arrangement of the plate 14 on the brush body 10 guaranteed is.
  • the plate is attached 14 a peripheral edge 14c is formed, which over the main body of the Plate protrudes and has a tapered edge on the the recess 12 surrounding surface of the brush body 10 for Edition is brought.
  • ultrasonic welding takes place also over the entire circumference of the plate 14.
  • the recess 12 with a converging towards the interior of the brush body 10 provided oblique peripheral wall.
  • the plate 14 is with a matching inclined peripheral wall, so that a gap-free Ensure the seat of the plate in the recess of the brush body is.
  • the plate for additional welding at the bottom of the recess 12 can be provided with a tapered edge.
  • an approximately between the gap and the brush body remaining gap by filling be closed with a plastic mass.
  • Particularly useful is to have this gap by injection molding in an injection mold Fill in plastic mass. If an elastomer as a plastic mass is selected, the plate on the brush body receives an all-round elastic support that can be used to prevent wear and tear Dampen vibrations.
  • connection of the Plate 14 with the brush body 10 alternatively or additionally done by an adhesive.
  • the adhesive can also or additionally Function, one remaining between the plate and the brush body Fill in the gap and remove it.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Abstract

To bond bristles to the heads of brushes, where the bristle tufts (16) are mounted on platelets (14) of plastics and the same material as the brush body (10), an edge is formed around the platelets. As the platelet is bonded to the brush head by ultrasonic welding, the shaped edge acts as an energy concentrator. The shaped edge tapers (18) towards the brush body, to lie at the base of the opening (12) formed in the brush body to hold the platelet with the bristles in a shaped fit. The outer contour of the bristle platelet is shaped to form a shoulder over the rim of the opening in the brush body to hold the bristle platelet, and lie on the surface surrounding the opening. Or the peripheral shoulder around the platelet can lie within a recess around the opening, to lie flush with the brush body surface. The platelet peripheral shoulder extends as far as the transit zone of the brush body, forming the neck piece of a toothbrush. A press unit holds the platelet of bristle tufts against the brush body during ultrasonic welding. The gap between the bristle platelet and the brush body is filled with a plastics mass in an injection mold, where the plastics mass is injected into the gap. The ultrasonic welding unit is combined with an adhesive applicator. The opening in the brush body, to accommodate the platelet with the bristle tufts, has a peripheral wall which converges inwards. The peripheral wall of the bristle platelet is angled to fit into the opening wall, and is bonded in place by ultrasonic welding or an adhesive.

Description

Die Erfindung betrifft ein Verfahren zum Verbinden von mit Borstenbüscheln versehenen Plättchen aus Kunststoff mit Bürstenkörpern aus, insbesondere demselben, Kunststoff mittels Ultraschallschweißen oder Verklebung.The invention relates to a method for connecting tufts of bristles provided plastic plates with brush bodies from, in particular the same, plastic by means of ultrasonic welding or gluing.

Bei der Bürstenherstellung ist es bekannt, Borstenbüschel an Trägerplättchen zu befestigen, die dann an einem Bürstenkörper befestigt werden. Die Befestigung der Trägerplättchen an den Bürstenkörpern kann durch Verschweißen erfolgen, insbesondere dann, wenn Trägerplättchen und Bürstenkörper aus demselben Kunststoff bestehen. Am Übergang zwischen dem Trägerplättchen und der Oberfläche des Bürstenkörpers kann ein Spalt entstehen, der aus ästhetischen, aber auch aus hygienischen Gründen unerwünscht ist.In brush production, it is known to have tufts of bristles on carrier plates to attach, which is then attached to a brush body become. The carrier plates can be attached to the brush bodies done by welding, especially when carrier plates and brush body made of the same plastic. At the transition between the carrier plate and the surface of the brush body can create a gap that is aesthetic, but also hygienic Reasons is undesirable.

Durch die Erfindung wird ein Verfahren zur Verfügung gestellt, mit dem eine zuverlässige Verbindung zwischen Trägerplättchen und Bürstenkörper gewährleistet wird, ohne daß ein unerwünscht großer Spalt zwischen Trägerplättchen und Bürstenkörper verbleibt.The invention provides a method with a reliable connection between the carrier plate and the brush body is guaranteed without an undesirably large gap remains between carrier plate and brush body.

Gemäß einer ersten Lösung der Erfindung erfolgt die Verbindung zwischen den Kunststoffen des Plättchens und des Bürstenkörpers durch Ultraschallschweißen. Am Umfangsrand des Plättchens wird eine zu dem Bürstenkörper weisende Kante geformt, die beim Ultraschallschweißen als Energie-Konzentrator wirkt. Die Verschweißung erfolgt daher mit hoher Präzision, so daß das Plättchen auch bei Massenfertigung, wie beispielsweise bei Zahnbürsten, paßgenau an dem Bürstenkörper befestigt werden kann. Vorzugsweise wird die Kante derart ausgebildet, dass sie sich zum Bürstenkörper hin verjüngt. Vorteilhaft ist eine Ausführungsform des Verfahrens, bei der der Bürstenkörper mit einer Ausnehmung versehen wird, in die das Plättchen paßgenau eingesetzt werden kann. Der zwischen dem Außenrand des Plättchens und der Berandung der Ausnehmung verbleibende Spalt ist dann sehr klein und kaum wahrnehmbar.According to a first solution of the invention, the connection is made between the plastics of the plate and the brush body Ultrasonic welding. On the peripheral edge of the plate, one becomes that Brush body shaped edge shaped during ultrasonic welding acts as an energy concentrator. The welding is therefore done with high precision, so that the plate also in mass production, such as For example, with toothbrushes, attached to the brush body with a precise fit can be. The edge is preferably formed such that it tapers towards the brush body. An embodiment is advantageous of the method in which the brush body with a recess is provided, in which the plate is inserted with a perfect fit can. The between the outer edge of the plate and the edge of the The gap remaining is then very small and hardly noticeable.

Bei dieser Ausführungsform des Verfahrens wird die Kante an ihrem verjüngten Ende am Boden der Ausnehmung zur Auflage gebracht, so daß die Schweißverbindung am Boden der Ausnehmung entsteht. Beim Schweißprozeß wird das Plättchen gegen den Boden der Ausnehmung des Bürstenkörpers gedrückt.In this embodiment of the method, the edge is at her brought tapered end at the bottom of the recess so that the welded joint is created at the bottom of the recess. During the welding process is the plate against the bottom of the recess of the brush body pressed.

Am Umfangsrand des Plättchens wird vorzugsweise ein über die Ausnehmung des Bürstenkörpers hinausstehender Ansatz gebildet. Dieser Ansatz kann sich über den gesamten Umfang des Plättchens erstrecken oder auch nur über einen Teil desselben, vorzugsweise über denjenigen Teil, der bei einer Zahnbürste bis in das Halsstück des Bürstenkörpers hineinreicht. An dieser Stelle treten Biegebeanspruchungen auf, durch die ein etwa zwischen Plättchen und Bürstenkörper verbleibender Spalt geöffnet wird, wenn der Kopf der Zahnbürste im Gebrauch zurückgebogen wird. Auch dieser Ansatz wird vorzugsweise mit einer gegen den Bürstenkörper weisenden, sich verjüngenden Kante versehen, die beim Ultraschallschweißen als Energie-Konzentrator wirkt.At the peripheral edge of the plate is preferably one over the recess of the brush body protruding approach formed. This Approach can extend over the entire circumference of the plate or only over part of the same, preferably over that Part of a toothbrush up to the neck of the brush body reaches in. At this point, bending stresses occur which is a gap remaining approximately between the plate and the brush body is opened when the toothbrush head is bent back in use becomes. This approach is also preferred with one against the brush body facing, tapered edge provided during ultrasonic welding acts as an energy concentrator.

Ein etwa noch zwischen dem Plättchen und dem Bürstenkörper verbleibender Spalt kann durch Nachbearbeitung geschlossen werden, insbesondere durch Ausfüllen mit einer geeigneten Kunststoffmasse. Insbesondere kann der schon mit dem Plättchen bestückte Bürstenkörper in eine Spritzgußform eingebracht werden, mit der eine Umspritzung über den Spalt gelegt wird, um diesen vollständig auszufüllen und zu schließen. An approximately remaining between the plate and the brush body Gap can be closed by post-processing, in particular by filling with a suitable plastic mass. In particular can the brush body already equipped with the plate in an injection mold can be introduced with which an overmolding the gap is placed in order to completely fill it and to conclude.

Bei einer alternativen Ausführungform des erfindungsgemäßen Verfahrens wird das Plättchen paßgenau in eine Ausnehmung des Bürstenkörpers eingesetzt und dort mittels eines Klebers befestigt. Auch bei dieser Ausführungsform des Verfahrens kann ein etwa zwischen Plättchen und Bürstenkörper verbleibender Spalt durch Umspritzen in einer Spritzgußform geschlossen werden.In an alternative embodiment of the method according to the invention the plate fits snugly into a recess in the brush body used and fixed there with an adhesive. Also at this embodiment of the method can be approximately between platelets and brush body remaining gap by injection molding in one Injection mold to be closed.

Bei einer weiteren Ausführungform der Erfindung werden die Plättchen durch eine Kombination von Ultraschallschweißen und Kleben an dem Bürstenkörper befestigt. Insbesondere kann die lasttragende Befestigung des Plättchens durch Verschweißung am Boden der Ausnehmung des Bürstenkörpers erfolgen, während der Kleber in den zwischen Plättchen und Bürstenkörper verbleibenden Spalt eingebracht wird und diesen ausfüllt.In a further embodiment of the invention, the platelets through a combination of ultrasonic welding and gluing to the Brush body attached. In particular, the load-bearing attachment the plate by welding to the bottom of the recess of the Brush body done while the glue is in between platelets and brush body remaining gap is introduced and this fills.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung mehrerer Ausführungsformen des Verfahrens und aus der Zeichnung, auf die Bezug genommen wird. In der Zeichnung zeigen:

  • Figur 1 schematisch eine Schnittansicht durch den Kopfbereich einer in dem erfindungsgemäßen Verfahren hergestellten Zahnbürste;
  • Figur 2 eine Draufsicht auf den Kopfbereich der Zahnbürste nach Fig. 1;
  • Figur 3 eine schematische Schnittansicht einer im Gebrauch durch Biegebeanspruchung verformten Zahnbürste;
  • Figur 4 eine vergrößerte Schnittansicht durch den Kopfbereich einer Zahnbürste, die in einer bevorzugten Ausführungsform des Verfahrens hergestellt wird;
  • Figur 5 eine Detailansicht des in Fig. 4 gezeigten Plättchens;
  • Figur 6 eine Draufsicht auf den Kopf einer Zahnbürste nach Figur 4; und
  • Figuren 7 bis 12 Schnitt- bzw. Teilansichten von Zahnbürsten, die in mehreren Ausführungsvarianten des Verfahrens herstellbar sind.
    • Further features and advantages of the invention result from the following description of several embodiments of the method and from the drawing, to which reference is made. The drawing shows:
  • 1 schematically shows a sectional view through the head region of a toothbrush produced in the method according to the invention;
  • FIG. 2 shows a top view of the head region of the toothbrush according to FIG. 1;
  • FIG. 3 shows a schematic sectional view of a toothbrush deformed in use by bending stress;
  • FIG. 4 shows an enlarged sectional view through the head region of a toothbrush which is produced in a preferred embodiment of the method;
  • FIG. 5 shows a detailed view of the plate shown in FIG. 4;
  • FIG. 6 shows a top view of the head of a toothbrush according to FIG. 4; and
  • Figures 7 to 12 sectional or partial views of toothbrushes that can be produced in several variants of the method.

    • Bei der in Figur 1 gezeigten Ausführungsform wird im Kopfbereich eines Zahnbürstenkörpers 10 eine Ausnehmung 12 gebildet. In diese Ausnehmung 12 wird ein Trägerplättchen 14 passend eingesetzt. Das Trägerplättchen 14 wird mit einer Anzahl von Durchgangslöchern versehen, worin Borstenbüschel 16 eingesetzt und befestigt werden. Am Umfangsrand des Trägerplättchens 14 wird eine Kante 18 gebildet, die sich zum Boden der Ausnehmung 12 hin verjüngt. Der Bürstenkörper 10 und das Plättchen 14 bestehen vorzugsweise aus demselben Kunststoff, beispielsweise Polypropylen.In the embodiment shown in Figure 1 is in the head area of a toothbrush body 10, a recess 12 is formed. In this recess 12, a carrier plate 14 is inserted appropriately. The carrier plate 14 is provided with a number of through holes, wherein tufts of bristles 16 are inserted and attached. On the perimeter of the carrier plate 14, an edge 18 is formed, which is to Bottom of the recess 12 tapers. The brush body 10 and that Platelets 14 are preferably made of the same plastic, for example Polypropylene.

    Die Verschweißung erfolgt mit hoher Präzision, so daß eine sehr paßgenaue Anordnung des Plättchens 14 am Bürstenkörper 10 gewährleistet ist.The welding takes place with high precision, so that a very precise fit arrangement of the plate 14 on the brush body 10 guaranteed is.

    Dennoch kann ein geringfügiger Spalt zwischen dem Umfangsrand des Plättchens 14 und der dieses umgebenden Oberfläche des Bürstenkörpers 10 verbleiben.Nevertheless, there may be a slight gap between the peripheral edge of the Plate 14 and the surrounding surface of the brush body 10 remain.

    Wie in Figur 3 veranschaulicht ist, kann sich dieser Spalt im Gebrauch einer Zahnbürste durch die dabei auftretende Biegebeanspruchung vergrößern.As illustrated in Figure 3, this gap in the Use of a toothbrush due to the resulting bending stress enlarge.

    Dem wird bei der in Figur 4 gezeigten Ausführungsform des Verfahrens vorgebeugt, indem das Plättchen 14 mit einem Ansatz 14a versehen wird, der sich bis in den Halsbereich des Bürstenkörpers erstreckt. Um eine sichere Verschweißung dieses Ansatzes 14a mit dem Bürstenkörper 10 zu gewährleisten, wird auch der Ansatz 14a auf seiner dem Bürstenkörper zugewandten Seite mit einer sich verjüngende Kante 14b versehen, die beim Ultraschallschweißen als Energie-Konzentrator wirkt.This is the case with the embodiment of the method shown in FIG prevented by providing the plate 14 with a shoulder 14a that extends into the neck area of the brush body. To securely weld this approach 14a to the To ensure brush body 10, the approach 14a on his the side facing the brush body with a tapered edge 14b provided as an energy concentrator in ultrasonic welding works.

    Bei der in Figur 7 gezeigten Ausführungsform wird die Ausnehmung 12 mit einer am Umfangsrand gestuften Form und das Plättchen 14 mit einem dazu passend ausgebildeten Umfangsrand versehen. In the embodiment shown in Figure 7, the recess 12 with a stepped shape on the peripheral edge and the plate 14 with a matching peripheral edge.

    Bei der in Figur 8 gezeigten Ausführungsform wird an das Plättchen 14 ein Umfangsrand 14c angeformt, der über den Hauptkörper des Plättchens hinaussteht und mit einer sich verjüngenden Kante an der die Ausnehmung 12 umgebenden Oberfläche des Bürstenkörpers 10 zur Auflage gebracht wird. Bei dieser Ausführungsform erfolgt eine Ultraschallverschweißung auch über den gesamten Umfang des Plättchens 14.In the embodiment shown in FIG. 8, the plate is attached 14 a peripheral edge 14c is formed, which over the main body of the Plate protrudes and has a tapered edge on the the recess 12 surrounding surface of the brush body 10 for Edition is brought. In this embodiment, ultrasonic welding takes place also over the entire circumference of the plate 14.

    Bei der in Figur 9 gezeigten Ausführungform des Verfahrens wird das Plättchen 14 nach dem Schweißprozeß an den Bürstenkörper 10 herangedrückt und mit diesem über den gesamten Umfang in enge Verbindung gebracht, so daß am Übergang zwischen Plättchen 14 und Bürstenkörper 10 kein Spalt entsteht.In the embodiment of the method shown in FIG the plate 14 pressed against the brush body 10 after the welding process and in close connection with it over the entire scope brought so that at the transition between plate 14 and brush body 10 no gap arises.

    Bei der in Figur 10 gezeigten Ausführungsform des Verfahrens wird die Ausnehmung 12 mit einer zum Inneren des Bürstenkörpers 10 konvergierenden schrägen Umfangswand versehen. Das Plättchen 14 wird mit einer dazu passenden schrägen Umfangswand versehen, so daß ein spaltfreier Sitz des Plättchens in der Ausnehmung des Bürstenkörpers gewährleistet ist. Wie bei den zuvor gezeigten Ausführungsformen kann das Plättchen zusätzlich für die Festschweißung am Boden der Ausnehmung 12 mit einer sich verjüngenden Kante versehen werden.In the embodiment of the method shown in FIG the recess 12 with a converging towards the interior of the brush body 10 provided oblique peripheral wall. The plate 14 is with a matching inclined peripheral wall, so that a gap-free Ensure the seat of the plate in the recess of the brush body is. As with the previously shown embodiments the plate for additional welding at the bottom of the recess 12 can be provided with a tapered edge.

    Wie in den Figuren 11 und 12 gezeigt ist, kann ein etwa zwischen dem Plättchen und dem Bürstenkörper verbleibender Spalt durch Ausfüllen mit einer Kunststoffmasse verschlossen werden. Besonders zweckmäßig ist es, diesen Spalt durch Spritzgießen in einer Spritzgußform mit Kunststoffmasse auszufüllen. Wenn als Kunststoffmasse ein Elastomer gewählt wird, erhält das Plättchen am Bürstenkörper eine allseitige elastische Abstützung, die genutzt werden kann, um im Gebrauch auftretende Schwingungen zu bedämpfen.As shown in FIGS. 11 and 12, an approximately between the gap and the brush body remaining gap by filling be closed with a plastic mass. Particularly useful is to have this gap by injection molding in an injection mold Fill in plastic mass. If an elastomer as a plastic mass is selected, the plate on the brush body receives an all-round elastic support that can be used to prevent wear and tear Dampen vibrations.

    Bei allen gezeigten Ausführungsformen kann die Verbindung des Plättchens 14 mit dem Bürstenkörper 10 alternativ oder zusätzlich durch einen Kleber erfolgen. Der Kleber kann auch oder zusätzlich die Funktion haben, einen zwischen Plättchen und Bürstenkörper verbleibenden Spalt auszufüllen und damit zu beseitigen.In all the embodiments shown, the connection of the Plate 14 with the brush body 10 alternatively or additionally done by an adhesive. The adhesive can also or additionally Function, one remaining between the plate and the brush body Fill in the gap and remove it.

    Claims (16)

    Verfahren zum Verbinden von mit Borstenbüscheln (16) versehenen Plättchen (14) aus Kunststoff mit Bürstenkörpern (10) aus, insbesondere demselben, Kunststoff mittels Ultraschallschweißen, dadurch gekennzeichnet, daß jeweils an einem zum Bürstenkörper (10) weisenden Umfangsrand (14c) des Plättchens (14) eine Kante (18) geformt wird, die beim Ultraschallschweißen als Energie-Konzentrator wirkt.Process for connecting plastic plates (14) provided with bristle tufts (16) with brush bodies (10) made of, in particular the same, plastic by means of ultrasonic welding, characterized in that in each case on a peripheral edge (14c) of the plate (facing the brush body (10)) 14) an edge (18) is formed, which acts as an energy concentrator during ultrasonic welding. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß sich die Kante (18) zum Bürstenkörper (10) hin verjüngt.Method according to claim 1, characterized in that the edge (18) tapers towards the brush body (10). Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Bürstenkörper (10) jeweils mit einer Ausnehmung (12) versehen wird, in die ein Plättchen (14) passend eingesetzt wird.Method according to claim 1 or 2, characterized in that the brush body (10) is each provided with a recess (12) into which a small plate (14) is inserted in a suitable manner. Verfahren nach den Ansprüchen 2 und 3, dadurch gekennzeichnet, daß die Kante (18) an ihrem verjüngten Ende am Boden der Ausnehmung (12) anliegt und die Schweißverbindung am Boden der Ausnehmung (12) gebildet wird.Method according to claims 2 and 3, characterized in that the edge (18) lies at its tapered end on the bottom of the recess (12) and the welded connection is formed on the bottom of the recess (12). Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß am Umfangsrand (14c) des Plättchens (14) ein über die Ausnehmung (12) des Bürstenkörpers (10) hinausstehender Ansatz (14a) gebildet wird.Method according to claim 4, characterized in that an extension (14a) projecting beyond the recess (12) of the brush body (10) is formed on the peripheral edge (14c) of the plate (14). Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß der Ansatz (14a) auf der die Ausnehmung (12) umgebenden Fläche des Bürstenkörpers (10) zur Auflage gebracht wird.Method according to claim 5, characterized in that the attachment (14a) is brought to rest on the surface of the brush body (10) surrounding the recess (12). Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß der Ansatz (14a) mit einer sich zum Bürstenkörper (10) hin verjüngenden Kante (14b) versehen wird, die beim Ultraschallschweißen als Energie-Konzentrator wirkt. Method according to Claim 6, characterized in that the attachment (14a) is provided with an edge (14b) which tapers towards the brush body (10) and which acts as an energy concentrator during ultrasonic welding. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß der Ansatz (14a) in eine abgestufte Erweiterung der Ausnehmung (12) des Bürstenkörpers (10) eingesetzt wird.Method according to claim 5, characterized in that the extension (14a) is inserted into a stepped extension of the recess (12) in the brush body (10). Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß der Ansatz (14a) so ausgebildet wird, dass er bis in einen Übergangsbereich des Bürstenkörpers (10) hineinragt, der dem Halsstück einer Zahnbürste entspricht.Method according to Claim 6, characterized in that the extension (14a) is designed such that it projects into a transition region of the brush body (10) which corresponds to the neck piece of a toothbrush. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Plättchen (14) während des Ultraschallschweißens gegen den Bürstenkörper (10) angedrückt wird.Method according to one of the preceding claims, characterized in that the plate (14) is pressed against the brush body (10) during the ultrasonic welding. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß ein zwischen Plättchen (14) und Bürstenkörper (10) verbliebener Spalt durch eine Kunststoffmasse geschlossen wird.Method according to one of the preceding claims, characterized in that a gap remaining between the plate (14) and the brush body (10) is closed by a plastic compound. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß ein zwischen Plättchen (14) und Bürstenkörper (10) verbliebener Spalt durch Umspritzen in einer Spritzgußform geschlossen wird.Method according to one of the preceding claims, characterized in that a gap remaining between the plate (14) and the brush body (10) is closed by extrusion coating in an injection mold. Verfahren zum Verbinden von mit Borstenbüscheln (16) versehenen Plättchen (14) aus Kunststoff mit Bürstenkörpern (10) aus, insbesondere demselben, Kunststoff, dadurch gekennzeichnet, daß der Bürstenkörper (10) mit einer Ausnehmung (12) versehen wird, in die das Plättchen (14) passend eingesetzt wird, und daß ein Kleber zur Befestigung des Plättchens (14) am Bürstenkörper (10) aufgebracht wird.Method for connecting bristle tufts (16) made of plastic plates (14) with brush bodies (10) made of, in particular the same, plastic, characterized in that the brush body (10) is provided with a recess (12) into which the plate (14) is used appropriately, and that an adhesive for attaching the plate (14) to the brush body (10) is applied. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß ein Teil des Bürstenkörpers (10) mit darin eingesetztem Plättchen (14) zum Umspritzen wenigstens des Umfangsbereiches des Plättchens (14) in eine Spritzgußform eingebracht wird. Method according to one of the preceding claims, characterized in that a part of the brush body (10) with a plate (14) inserted therein is inserted into an injection mold in order to encapsulate at least the peripheral region of the plate (14). Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Plättchen (14) am Bürstenkörper (10) durch Ultraschallschweißen in Kombination mit einer Klebeverbindung befestigt wird.Method according to one of the preceding claims, characterized in that the plate (14) is attached to the brush body (10) by ultrasonic welding in combination with an adhesive connection. Verfahren zum Verbinden von mit Borstenbüscheln (16) versehenen Plättchen (14) aus Kunststoff mit Bürstenkörpern (10) aus, insbesondere demselben, Kunststoff, dadurch gekennzeichnet, daß der Bürstenkörper (10) mit einer Ausnehmung (12) mit einer schräg zum Inneren konvergierenden Umfangswandung versehen wird, daß das Plättchen mit einer nur zur Umfangswand der Ausnehmung (12) passenden Umfangswand versehen wird und passend in die Ausnehmung (12) eingesetzt wird, und daß das Plättchen (14) in der Ausnehmung (12) durch Ultraschallschweißen oder mittels eines Klebers befestigt wird.Method for connecting plastic plates (14) provided with bristle tufts (16) with brush bodies (10) made of, in particular the same, plastic, characterized in that the brush body (10) has a recess (12) with a peripheral wall which converges obliquely towards the inside it is provided that the plate is provided with a peripheral wall which only matches the peripheral wall of the recess (12) and is inserted appropriately into the recess (12), and that the plate (14) in the recess (12) by ultrasonic welding or by means of an adhesive is attached.
    EP01107718A 2000-04-06 2001-03-30 Method of brush manufacture Expired - Lifetime EP1142505B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE20006311U DE20006311U1 (en) 2000-04-06 2000-04-06 Device for attaching tufts of bristles to brush bodies
    DE20006311U 2000-04-06

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    EP1142505A2 true EP1142505A2 (en) 2001-10-10
    EP1142505A3 EP1142505A3 (en) 2003-06-11
    EP1142505B1 EP1142505B1 (en) 2006-12-06

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    EP (1) EP1142505B1 (en)
    AT (1) ATE347290T1 (en)
    DE (2) DE20006311U1 (en)
    ES (1) ES2275577T3 (en)

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    DE102008029499A1 (en) 2008-06-20 2009-12-24 M + C Schiffer Gmbh Brush, in particular toothbrush and method for its manufacture
    EP3753448A1 (en) 2019-06-21 2020-12-23 The Procter & Gamble Company Method for producing a toothbrush head
    EP3753446A1 (en) 2019-06-21 2020-12-23 The Procter & Gamble Company Cleaning element carrier and toothbrush head comprising it
    EP3753445A1 (en) 2019-06-21 2020-12-23 The Procter & Gamble Company Tootbrush head and part thereof
    EP3753449A1 (en) 2019-06-21 2020-12-23 The Procter & Gamble Company Hole perforation plate for manufacturing of a toothbrush head and part thereof
    EP3753447A1 (en) 2019-06-21 2020-12-23 The Procter & Gamble Company Method for producing a toothbrush head or a part thereof

    Also Published As

    Publication number Publication date
    EP1142505A3 (en) 2003-06-11
    US20010050507A1 (en) 2001-12-13
    DE50111577D1 (en) 2007-01-18
    US6779851B2 (en) 2004-08-24
    ES2275577T3 (en) 2007-06-16
    EP1142505B1 (en) 2006-12-06
    ATE347290T1 (en) 2006-12-15
    DE20006311U1 (en) 2001-08-09

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