EP0923326B1 - Toothbrush head - Google Patents

Toothbrush head Download PDF

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Publication number
EP0923326B1
EP0923326B1 EP98903981A EP98903981A EP0923326B1 EP 0923326 B1 EP0923326 B1 EP 0923326B1 EP 98903981 A EP98903981 A EP 98903981A EP 98903981 A EP98903981 A EP 98903981A EP 0923326 B1 EP0923326 B1 EP 0923326B1
Authority
EP
European Patent Office
Prior art keywords
bristles
bristle
brush head
bristle carrier
clusters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98903981A
Other languages
German (de)
French (fr)
Other versions
EP0923326A1 (en
Inventor
Peter Gross
Beat Huber
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.)
Trisa Holding AG
Original Assignee
Trisa Holding AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4194244&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0923326(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Trisa Holding AG filed Critical Trisa Holding AG
Publication of EP0923326A1 publication Critical patent/EP0923326A1/en
Application granted granted Critical
Publication of EP0923326B1 publication Critical patent/EP0923326B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/20—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed or joined in rubber bodies, e.g. in soft rubber

Definitions

  • the present invention relates to a brush head for a toothbrush according to the preamble of claim 1.
  • a brush head of this type is in WO-A-96/02165 shown and described.
  • this known brush head are the bristle bundles at the anchoring end directly in the soft elastic material of the Bristle holder anchored. The bundles of bristles are thus melted directly into the rubber-elastic material.
  • anchoring the bristle bundle in the soft elastic material it can happen that when using the brush head due to tensile forces, that act on the bristles or bristle bundles, certain Bristles or bristle bundles from the soft elastic Material to be torn out.
  • the known Brush head is also a thin, curved one Extension part available, made of the same hard Material like the handle is made of and soft elastic material in which the bristle bundle are embedded, surrounded. The extension part has some flexibility to use the To be able to bend toothbrush back.
  • EPC forms are embodiments of Brush heads revealed in those Bristle bundles, which form lateral rows of bristles, at the anchoring end in the soft elastic material of a lateral holding part are embedded.
  • the soft elastic material of these holding parts is in the range each bundle of bristles pulled up into a cuff that surrounds the associated bundle of bristles. The connection between the bristle bundles and the cuff directly by merging.
  • the bristle bundles of the lateral rows of bristles each held in a sleeve-like anchoring part.
  • These anchoring parts are in the soft elastic Material of the side holding part embedded and with each other via a connecting part, the one Continuation of the handle forms and from the same hard material, like the latter, exists firmly together connected.
  • the object of the present invention is now based on a brush head of the type mentioned create that with a more secure anchoring of the Bristle bundle an even better adaptation of the same the shape of the bit to be cleaned and the individual Teeth allowed.
  • the bristle bundles in sleeves or as a holding part serving connecting parts is a good one Anchoring of the bristle bundles ensured.
  • the spaced sleeves or connecting parts are in the soft elastic material of the bristle carrier embedded that the connection between the sleeves or Produces connecting parts. This will Bristle carriers give increased flexibility to what when cleaning the teeth a better adjustment of the Bristle bundle to the tooth and bit shape allows.
  • Fig. 1 is a plan view and in Fig. 2 in section along the line II-II of Fig. 1, a brush head 1 and shown part of the handle 2 of a toothbrush.
  • the Brush head 1 has a bristle holder 3 in which protruding bristle bundles 4, each of which is a There are a large number of bristles that are anchored. At the each end of the bristle bundle is 4 in a sleeve 5 attached.
  • the sleeves 5 with the Bristle bundles 4 are spaced apart and in present embodiment example in rows arranged which are parallel and perpendicular to Extend toothbrush longitudinal axis A.
  • the bristle holder 3 consists of a soft elastic material that is elastically compressible and stretchable, e.g. from a Elastomer.
  • the sleeves 5 are elastic in this Embedded material that on the one hand connects the Manufactures sleeves 5 with each other and the other Bristle holder gives a certain flexibility.
  • FIGS. 3 and 4 are variants of the first Embodiment according to FIGS. 1 and 2 in plan view shown. These are the two variants Bristle bundle 4 not individually in the soft elastic Material of the bristle carrier 3 used, but too Groups 6 summarized.
  • the bristle bundle 4 each Group 6 are used as holding parts Connecting parts 7 connected to each other.
  • everybody Connecting part 7 has holes 7a into which the Bristle bundles 4 are used.
  • the connecting parts 7 are wholly or partly made of flexible material the bristle carrier 3 surrounded.
  • the Connecting parts 7 transversely, preferably approximately at right angles to the toothbrush longitudinal axis A.
  • Each group 6 thus exists from a number of side by side in the connecting part 7 arranged bristle bundles 4.
  • the configuration for the variant is according to 4 more versatile, since the connecting parts 7 have different shape.
  • FIG. 4 it is also possible in the same bristle carrier 3 both individually bristle bundles 4 anchored in sleeves 5 as well as groups Arrange 6 bundled bristle bundles 4.

Description

Die vorliegende Erfindung betrifft einen Bürstenkopf für eine Zahnbürste gemäss Oberbegriff des Anspruches 1.The present invention relates to a brush head for a toothbrush according to the preamble of claim 1.

Ein Bürstenkopf dieser Art ist in der WO-A-96/02165 gezeigt und beschrieben. Bei diesem bekannten Bürstenkopf sind die Borstenbündel am verankerungsseitigen Ende unmittelbar im weichelastischen Material des Borstenträgers verankert. Die Borstenbündel sind somit direkt in das gummielastische Material eingeschmolzen. Bei dieser Art von Verankerung der Borstenbündel im weichelastischen Material kann es nun vorkommen, dass beim Gebrauch des Bürstenkopfes infolge von Zugkräften, die auf die Borsten bzw. Borstenbündel einwirken, gewisse Borsten bzw. Borstenbündel aus dem weichelastischen Material herausgerissen werden. Beim bekannten Bürstenkopf ist ferner ein dünner, gekrümmter Verlängerungsteil vorhanden, der aus demselben harten Werkstoff wie der Handgriff besteht und der vom weichelastischen Werkstoff, in den die Borstenbündel eingebettet sind, umgeben ist. Der Verlängerungsteil hat eine gewisse Flexibilität, um beim Gebrauch der Zahnbürste zurückgebogen werden zu können.A brush head of this type is in WO-A-96/02165 shown and described. In this known brush head are the bristle bundles at the anchoring end directly in the soft elastic material of the Bristle holder anchored. The bundles of bristles are thus melted directly into the rubber-elastic material. With this type of anchoring the bristle bundle in the soft elastic material it can happen that when using the brush head due to tensile forces, that act on the bristles or bristle bundles, certain Bristles or bristle bundles from the soft elastic Material to be torn out. With the known Brush head is also a thin, curved one Extension part available, made of the same hard Material like the handle is made of and soft elastic material in which the bristle bundle are embedded, surrounded. The extension part has some flexibility to use the To be able to bend toothbrush back.

In der WO-A-97/20484, die einen Stand der Technik gemäss Art. 54(3) EPÜ bildet, sind Ausführungsformen von Bürstenköpfen offenbart, bei denen diejenigen Borstenbündel, die seitliche Borstenbündelreihen bilden, am verankerungsseitigen Ende im weichelastischen Material eines seitlichen Halteteils eingebettet sind. Das weichelastische Material dieser Halteteile ist im Bereich jedes Borstenbündels zu einer Manschette hochgezogen, die das zugeordnete Borstenbündel umgibt. Die Verbindung zwischen den Borstenbündeln und der Manschette erfolgt direkt mittels Verschmelzen. Bei einer Variante werden die Borstenbündel der seitlichen Borstenbündelreihen jeweils in einem hülsenartigen Verankerungsteil gehalten. Diese Verankerungsteile sind in das weichelastische Material der seitlichen Halteteil eingebettet und untereinander über einen Verbindungsteil, der eine Fortsetzung des Handgriffes bildet und aus demselben harten Material besteht wie letzterer, fest miteinander verbunden.In WO-A-97/20484, which according to a prior art Art. 54 (3) EPC forms are embodiments of Brush heads revealed in those Bristle bundles, which form lateral rows of bristles, at the anchoring end in the soft elastic material of a lateral holding part are embedded. The soft elastic material of these holding parts is in the range each bundle of bristles pulled up into a cuff that surrounds the associated bundle of bristles. The connection between the bristle bundles and the cuff directly by merging. In a variant the bristle bundles of the lateral rows of bristles each held in a sleeve-like anchoring part. These anchoring parts are in the soft elastic Material of the side holding part embedded and with each other via a connecting part, the one Continuation of the handle forms and from the same hard material, like the latter, exists firmly together connected.

Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, einen Bürstenkopf der eingangs genannten Art zu schaffen, der bei einer sichereren Verankerung der Borstenbündel eine noch bessere Anpassung derselben an die Form des zu reinigenden Gebisses und der einzelnen Zähne erlaubt.The object of the present invention is now based on a brush head of the type mentioned create that with a more secure anchoring of the Bristle bundle an even better adaptation of the same the shape of the bit to be cleaned and the individual Teeth allowed.

Diese Aufgabe wird erfindungsgemäss durch einen Bürstenkopf mit den Merkmalen des Anspruches 1 gelöst.According to the invention, this object is achieved by a Brush head solved with the features of claim 1.

Da die Borstenbündel in Hülsen bzw. als Halteteil dienenden Verbindungsteilen gehalten sind, ist eine gute Verankerung der Borstenbündel sichergestellt. Die voneinander beabstandeten Hülsen bzw. Verbindungsteile sind in den weichelastischen Werkstoff des Borstenträgers eingebettet, der die Verbindung zwischen den Hülsen bzw. Verbindungsteilen herstellt. Dadurch wird dem Borstenträger eine erhöhte Flexibilität verliehen, was beim Reinigen der Zähne eine bessere Anpassung der Borstenbündel an die Zahn- und Gebissform ermöglicht.Because the bristle bundles in sleeves or as a holding part serving connecting parts is a good one Anchoring of the bristle bundles ensured. The spaced sleeves or connecting parts are in the soft elastic material of the bristle carrier embedded that the connection between the sleeves or Produces connecting parts. This will Bristle carriers give increased flexibility to what when cleaning the teeth a better adjustment of the Bristle bundle to the tooth and bit shape allows.

Eine bevorzugte Weiterausgestaltung des erfindungsgemässen Bürstenkopfes ist im Anspruch 2 umschrieben.A preferred further development of the The brush head according to the invention is in claim 2 circumscribed.

Im folgenden werden Ausführungsbeispiele des Erfindungsgegenstandes näher erläutert. Es zeigen rein schematisch:

Fig. 1 u. 2
in Draufsicht bzw. im Schnitt entlang der Linie II-II in Fig. 1 eine erste Ausführungsform eines Bürstenkopfes, und
Fig. 3 u. 4
in Draufsicht zwei Varianten des ersten Ausführungsbeispieles.
Exemplary embodiments of the subject matter of the invention are explained in more detail below. It shows purely schematically:
Fig. 1 u. 2
in plan view or in section along the line II-II in Fig. 1, a first embodiment of a brush head, and
Fig. 3 u. 4
in plan view two variants of the first embodiment.

In der Fig. 1 ist in Draufsicht und in Fig. 2 im Schnitt entlang der Linie II-II der Fig. 1 ein Bürstenkopf 1 und ein Teil des Handgriffes 2 einer Zahnbürste gezeigt. Der Bürstenkopf 1 weist einen Borstenträger 3 auf, in dem wegragende Borstenbündel 4, von denen jedes aus einer Vielzahl von Borsten besteht, verankert sind. Am verankerungsseitigen Ende ist jedes Borstenbündel 4 in einer Hülse 5 befestigt. Die Hülsen 5 mit den Borstenbündeln 4 sind voneinander beabstandet und im vorliegenden Ausführungsbeispiel beispielsweise in Reihen angeordnet, die sich parallel und rechtwinklig zur Zahnbürstenlängsachse A erstrecken. Der Borstenträger 3 besteht aus einem weichelastischen Werkstoff, der elastisch zusammendrückbar und dehnbar ist, z.B. aus einem Elastomer. Die Hülsen 5 sind in dieses gummielastische Material eingebettet, das einerseits die Verbindung der Hülsen 5 untereinander herstellt und andererseits dem Borstenträger eine gewisse Flexibilität verleiht.In Fig. 1 is a plan view and in Fig. 2 in section along the line II-II of Fig. 1, a brush head 1 and shown part of the handle 2 of a toothbrush. The Brush head 1 has a bristle holder 3 in which protruding bristle bundles 4, each of which is a There are a large number of bristles that are anchored. At the each end of the bristle bundle is 4 in a sleeve 5 attached. The sleeves 5 with the Bristle bundles 4 are spaced apart and in present embodiment example in rows arranged which are parallel and perpendicular to Extend toothbrush longitudinal axis A. The bristle holder 3 consists of a soft elastic material that is elastically compressible and stretchable, e.g. from a Elastomer. The sleeves 5 are elastic in this Embedded material that on the one hand connects the Manufactures sleeves 5 with each other and the other Bristle holder gives a certain flexibility.

In den Fig. 3 und 4 sind Varianten des ersten Ausführungsbeispiels gemäss den Fig. 1 und 2 in Draufsicht dargestellt. Bei diesen beiden Varianten sind die Borstenbündel 4 nicht einzeln in das weichelastische Material des Borstenträgers 3 eingesetzt, sondern zu Gruppen 6 zusammengefasst. Die Borstenbündel 4 jeder Gruppe 6 sind mittels als Halteteile dienenden Verbindungsteilen 7 miteinander verbunden. Jeder Verbindungsteil 7 weist Löcher 7a auf, in die die Borstenbündel 4 eingesetzt sind. Die Verbindungsteile 7 sind ganz oder teilweise vom weichelastischen Werkstoff des Borstenträgers 3 umgeben. 3 and 4 are variants of the first Embodiment according to FIGS. 1 and 2 in plan view shown. These are the two variants Bristle bundle 4 not individually in the soft elastic Material of the bristle carrier 3 used, but too Groups 6 summarized. The bristle bundle 4 each Group 6 are used as holding parts Connecting parts 7 connected to each other. Everyone Connecting part 7 has holes 7a into which the Bristle bundles 4 are used. The connecting parts 7 are wholly or partly made of flexible material the bristle carrier 3 surrounded.

Bei der Ausführungsform gemäss Fig. 3 erstrecken sich die Verbindungsteile 7 quer, vorzugsweise etwa rechtwinklig zur Zahnbürstenlängsachse A. Jede Gruppe 6 besteht somit aus einer Anzahl von nebeneinander im Verbindungsteil 7 angeordneten Borstenbündeln 4.In the embodiment according to FIG. 3, the Connecting parts 7 transversely, preferably approximately at right angles to the toothbrush longitudinal axis A. Each group 6 thus exists from a number of side by side in the connecting part 7 arranged bristle bundles 4.

Demgegenüber ist die Konfiguration bei der Variante gemäss Fig. 4 vielseitiger, da die Verbindungsteile 7 unterschiedliche Form haben. Wie in der Fig. 4 gezeigt ist es auch möglich, im selben Borstenträger 3 sowohl einzeln in Hülsen 5 verankerte Borstenbündel 4 wie auch zu Gruppen 6 zusammengefasste Borstenbündel 4 anzuordnen.In contrast, the configuration for the variant is according to 4 more versatile, since the connecting parts 7 have different shape. As shown in FIG. 4 it is also possible in the same bristle carrier 3 both individually bristle bundles 4 anchored in sleeves 5 as well as groups Arrange 6 bundled bristle bundles 4.

Es versteht sich, dass noch andere Anordnungen von Einzelborstenbündeln 4 und Gruppen von Borstenbündeln 4 sowie andere Formen von Verbindungsteilen 7 möglich sind als wie in den Fig. 3 und 4 gezeigt.It is understood that other arrangements of Single bristle bundles 4 and groups of bristle bundles 4 as well as other forms of connecting parts 7 are possible than as shown in Figs. 3 and 4.

Claims (2)

  1. Brush head for a toothbrush, having a bristle carrier (3) and clusters of bristles (4) which are anchored in the bristle carrier, comprise projecting bristles and, at the anchoring end, are enclosed by a soft/resilient material of the bristle carrier (3), characterized in that the clusters of bristles (4) are retained individually in sleeves (5), which are embedded at a distance apart from one another in the soft/resilient material of the bristle carrier (3) and are connected to one another by this material, or, combined to form groups, are retained in each case in a connecting part (7) serving as a retaining part, and the connecting parts (7) are spaced apart from one another and enclosed by the soft/resilient material of the bristle carrier (3).
  2. Brush head according to Claim 1, characterized in that the connecting parts (7), which combine the clusters of bristles (4) to form groups (6) in each case, have a number of holes (7a) into which the clusters of bristles (4) are inserted.
EP98903981A 1997-03-27 1998-03-03 Toothbrush head Expired - Lifetime EP0923326B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH74697 1997-03-27
CH74697 1997-03-27
PCT/CH1998/000084 WO1998043514A1 (en) 1997-03-27 1998-03-03 Toothbrush tip

Publications (2)

Publication Number Publication Date
EP0923326A1 EP0923326A1 (en) 1999-06-23
EP0923326B1 true EP0923326B1 (en) 2003-06-25

Family

ID=4194244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98903981A Expired - Lifetime EP0923326B1 (en) 1997-03-27 1998-03-03 Toothbrush head

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EP (1) EP0923326B1 (en)
AU (1) AU6203498A (en)
DE (3) DE59808808D1 (en)
WO (1) WO1998043514A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7921499B2 (en) 2004-07-12 2011-04-12 Trisa Holding Ag Method and device for producing a toothbrush by the two-component or multi-component injection-molding process
US8069524B2 (en) * 2004-05-07 2011-12-06 Glaxosmithkline Consumer Healthcare Gmbh & Co. Toothbrush
US8220102B2 (en) 2004-03-09 2012-07-17 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Toothbrush
US9185967B2 (en) 2005-06-09 2015-11-17 Glaxosmithkline Consumer Healthcare Gmbh & Co Toothbrush

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10164336A1 (en) 2001-12-28 2003-07-17 Trisa Holding Ag Triengen Toothbrush and method of making such a toothbrush
DE10259723A1 (en) * 2002-12-19 2004-07-01 Trisa Holding Ag Toothbrush and process for making it
GB0317539D0 (en) 2003-07-25 2003-08-27 Glaxosmithkline Consumer Healt Toothbrush
CN103717111A (en) 2011-07-23 2014-04-09 博朗有限公司 Oral cleaning implement having a plastic staple with cavity
WO2015145340A1 (en) * 2014-03-25 2015-10-01 Koninklijke Philips N.V. Brush head assembly and methods of manufacture
MX2018012073A (en) 2016-04-20 2019-05-22 Trisa Holding Ag Brush product and method for the production thereof.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112040A (en) * 1976-09-07 1978-09-05 Norman Orentreich Method of making fibers containing hair particles
CH645005A5 (en) * 1981-12-30 1984-09-14 Sylvain Nahum TOOTHBRUSH.
GB9106511D0 (en) * 1991-03-27 1991-05-15 Lingner & Fischer Gmbh Novel article
GB9414140D0 (en) * 1994-07-13 1994-08-31 Procter & Gamble Toothbrush
GB9524580D0 (en) * 1995-12-01 1996-01-31 Unilever Plc A toothbrush with flexibly mounted bristles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8220102B2 (en) 2004-03-09 2012-07-17 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Toothbrush
US8069524B2 (en) * 2004-05-07 2011-12-06 Glaxosmithkline Consumer Healthcare Gmbh & Co. Toothbrush
US7921499B2 (en) 2004-07-12 2011-04-12 Trisa Holding Ag Method and device for producing a toothbrush by the two-component or multi-component injection-molding process
US9185967B2 (en) 2005-06-09 2015-11-17 Glaxosmithkline Consumer Healthcare Gmbh & Co Toothbrush

Also Published As

Publication number Publication date
DE19880376D2 (en) 1999-08-05
DE19880376B4 (en) 2004-08-12
DE59808808D1 (en) 2003-07-31
WO1998043514A1 (en) 1998-10-08
AU6203498A (en) 1998-10-22
EP0923326A1 (en) 1999-06-23

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