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EP0910258B1 - Toothbrush and brush head for said toothbrush - Google Patents

Toothbrush and brush head for said toothbrush Download PDF

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Publication number
EP0910258B1
EP0910258B1 EP97921573A EP97921573A EP0910258B1 EP 0910258 B1 EP0910258 B1 EP 0910258B1 EP 97921573 A EP97921573 A EP 97921573A EP 97921573 A EP97921573 A EP 97921573A EP 0910258 B1 EP0910258 B1 EP 0910258B1
Authority
EP
European Patent Office
Prior art keywords
handle
centring
bristle carrier
toothbrush
longitudinal
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
EP97921573A
Other languages
German (de)
French (fr)
Other versions
EP0910258A1 (en
Inventor
Franz Fischer
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 Buerstenfabrik AG Triengen
Original Assignee
Trisa Buerstenfabrik AG Triengen
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 Trisa Buerstenfabrik AG Triengen filed Critical Trisa Buerstenfabrik AG Triengen
Publication of EP0910258A1 publication Critical patent/EP0910258A1/en
Application granted granted Critical
Publication of EP0910258B1 publication Critical patent/EP0910258B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers

Definitions

  • the invention relates to a toothbrush according to the Preamble of claim 1 and a brush head for the toothbrush.
  • Toothbrushes and brush heads of this type are known and available in different versions on the market.
  • GB-A-2 067 894 discloses a toothbrush with the features of the preamble of claim 1.
  • the snap connection by barbs on the free end of elastically deflectable arms are arranged at the end of the handle, formed. Reach behind the barbs in the end position of the brush head shoulders on the brush head.
  • an expansion part with diverging side surfaces available is used to spread apart the elastic Arms of the handle, so the barbs from the shoulders of the brush head to solve.
  • the toothbrush known from EP-A-0 199 849 has a handle and one exchangeable attached bristle part, one below his bristles Cross-sectionally closed on all sides, with an insertion opening on one end provided cavity for inserting a face from the handle protruding plug part.
  • the cavity has at the insertion opening an undercut on the side opposite to the direction of insertion open edge notch and the handle has the in the functional position area of the plug-in part located in the area of this latching recess a positive fit in the undercuts with which Help in addition to the plug connection also a latching between the handle and Bristle part is achieved so that good power transmission is achieved and an unwanted Loosening the connection is avoided.
  • the present invention is based on the object to create a toothbrush as well as a brush head that in addition to easy interchangeability Brush heads safe when using the toothbrush Ensure attachment of the brush head.
  • this object is achieved by a toothbrush and a brush head with those in claim 1 and claim 10 specified features solved.
  • a toothbrush 1 has one Handle 2 with an interchangeable, on a front Part 3 of the handle 2 attached brush head 4.
  • the brush head 4 consists of a bristle carrier 5 and from bristles 6 anchored in the bristle carrier 5, the free-standing ends form a brush surface 7 (Fig. 1).
  • the bristle carrier 5 has bristles up to its edge equipped, as can be seen from FIGS. 3 and 6.
  • the Longitudinal toothbrush axis is in Fig. 2 and 3 with 1a designated; a symmetry plane E runs through them Toothbrush 1.
  • the bristle carrier 5 and also the brush surface 7 have preferably an oval plan shape, as in FIG. 2 and 3; also the front part 3 of the handle 2 is adapted to this shape in the floor plan.
  • a footprint the bristle carrier 5, from which the bristles 6 project, is designated by 9 in FIG.
  • the brush head 4 in the front part 3 of the Handle 2 is held removable, is in particular from 5 to 7, in which the brush head 4th and the handle 2 are shown apart from each other.
  • the inner surfaces 12 ', 13' of the side walls 12, 13 run slightly inclined to the plane of symmetry E, and run towards the rear towards wall 10.
  • the inner surfaces 12 ', 13' of the side walls 12, 13 are each with one in Longitudinal toothbrush direction (arrow direction S according to FIG. 2 and 4) extending longitudinal groove 14, 15 and each with a locking groove 16, 17 provided.
  • the locking grooves 16, 17 are in the rear area, near the rear wall 10.
  • the top Areas of the side walls 12, 13 form in FIGS. 6 and 7 18, 19 designated guide surfaces.
  • a rounded heel area between the front, spoon-shaped part 3 and the remaining part of the Handle 2 is designated by 20 in FIGS. 4 to 6.
  • the Heel surface 20 is parallel to the floor 11 Centering recess 22 equipped, the side surfaces 23, 24 are inclined to the plane of symmetry E such that the centering recess 22 tapers to the rear.
  • the bristle carrier 5 of the brush head 4 has one front part 30, a handle-side rear part 31 and one on the lower side of the rear part 31 attached holding part 32.
  • the holding part 32 is closed both sides with a toothbrush longitudinal direction S extending guide bar 34, 35 provided, the Shape and width of the holding part 32 or the guide strips 34, 35 corresponds to the longitudinal grooves 14, 15.
  • the Holding part 32 with two resilient, transverse to Longitudinal direction S elastically deformable locking tongues 37, 38 provided that parallel to the base 9 and a lower guide surface 33 of the rear part 31 are arranged and one on their outer sides
  • the locking cams 39, 40 correspond in their shape and arrangement to the locking grooves 16, 17th
  • the front part 30 of the bristle carrier 5 has a rear rounded lower heel surface 45 (see FIGS. 5 and 6), the opposite of a rounded end face 46 of the front handle part 3 is designed.
  • a rear one Stop surface 47 of the rear bristle carrier part 31, the provided with the centering projection 42 already mentioned is also rounded in such a way that it is the Heel area 20 of the handle 2 corresponds.
  • the heel surface 45 of the bristle carrier 5 arrives the end face 46 of the handle 2 and the stop surface 47 to rest on the heel surface 20, with the Centering projection 42 in the centering recess 22nd is introduced and wedged with it.
  • a used up brush head 4 becomes the bristle holder 5 by hand in the longitudinal direction of the toothbrush (opposite direction Arrow S of Fig. 4) pushed forward - for example by acting on the slightly protruding one Stop surface 47.
  • This will wedge the Centering elements (centering recess 22, centering projection 42) overcome, and the locking tongues 37, 38 transverse to Longitudinal direction S elastically compressed; the locking cams 39, 40 disengage from the locking grooves 16, 17, and the Bristle head 5 is pushed out of the recess 8.
  • Longitudinal guide for the replaceable brush head could also through guide strips in the handle, in the engage opposing longitudinal grooves in the bristle carrier, be educated.
  • the embodiment of the toothbrush and the replaceable brush head is not only aesthetically, but also ecologically advantageous because for the parts to be discarded relatively little material is needed.

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  • Brushes (AREA)

Description

Die Erfindung betrifft eine Zahnbürste gemäss dem Oberbegriff des Anspruches 1 sowie einen Bürstenkopf für die Zahnbürste.The invention relates to a toothbrush according to the Preamble of claim 1 and a brush head for the toothbrush.

Zahnbürsten und Bürstenköpfe dieser Art sind bekannt und in verschiedenen Ausführungen auf dem Markt erhältlich.Toothbrushes and brush heads of this type are known and available in different versions on the market.

Die GB-A-2 067 894 offenbart beispielsweise eine Zahnbürste mit den Merkmalen des Oberbegriffes des Anspruchs 1. Bei dieser Zahnbürste wird die Schnappverbindung durch Widerhaken, die am freien Ende von elastisch auslenkbaren Armen am Ende des Handgriffes angeordnet sind, gebildet. Die Widerhaken hintergreifen in der Endstellung des Bürstenkopfes Schultern am Bürstenkopf. Zum Lösen des Bürstenkopfes vom Handgriff ist in einer Entladekammer des die neuen Bürstenköpfe enthaltenden Behälters ein Spreizteil mit auseinanderlaufenden Seitenflächen vorhanden. Dieser Spreizteil dient zum Auseinanderspreizen der elastischen Arme des Handgriffes, um so die Widerhaken von den Schultern des Bürstenkopfes zu lösen.For example, GB-A-2 067 894 discloses a toothbrush with the features of the preamble of claim 1. With this toothbrush, the snap connection by barbs on the free end of elastically deflectable arms are arranged at the end of the handle, formed. Reach behind the barbs in the end position of the brush head shoulders on the brush head. To solve the The brush head from the handle is in an unloading chamber of the new brush heads Containing container an expansion part with diverging side surfaces available. This expansion part is used to spread apart the elastic Arms of the handle, so the barbs from the shoulders of the brush head to solve.

Weitere Ausbildungsformen von Zahnbürsten ähnlicher Art sind aus der US-A-5,224,234 bekannt.Further designs of toothbrushes of a similar type are known from US-A-5,224,234 known.

Die aus der EP-A-0 199 849 bekannte Zahnbürste hat einen Handgriff und einen daran auswechselbaren befestigten Borstenteil, der unterhalb seiner Borsten einen im Querschnitt allseitig geschlossenen, an einer Stirnseite mit einer Einstecköffnung versehenen Hohlraum zum Einstecken eines stirnseitig aus dem Griff vorstehenden Steckteiles aufweist. Der Hohlraum hat dabei an der Einstecköffnung eine gegenüber der Einsteckrichtung seitliche Hinterschneidungen aufweisende randoffene Rastausnehmung und der Griff hat an dem in Funktionsstellung im Bereich dieser Rastausnehmung befindlichen Bereich des Steckteiles einen formschlüssig in die Hinterschneidungen passenden Vorsprung, mit dessen Hilfe neben der Steckverbindung auch eine Verrastung zwischen Griff und Borstenteil erzielt wird, so dass eine gute Kraftübertragung erreicht und ein ungewolltes Lösen der Verbindung vermieden wird.The toothbrush known from EP-A-0 199 849 has a handle and one exchangeable attached bristle part, one below his bristles Cross-sectionally closed on all sides, with an insertion opening on one end provided cavity for inserting a face from the handle protruding plug part. The cavity has at the insertion opening an undercut on the side opposite to the direction of insertion open edge notch and the handle has the in the functional position area of the plug-in part located in the area of this latching recess a positive fit in the undercuts with which Help in addition to the plug connection also a latching between the handle and Bristle part is achieved so that good power transmission is achieved and an unwanted Loosening the connection is avoided.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Zahnbürste sowie einen Bürstenkopf zu schaffen, die neben einfacher Auswechselbarkeit verbrauchter Bürstenköpfe eine beim Gebrauch der Zahnbürste sichere Befestigung des Bürstenkopfes gewährleisten.The present invention is based on the object to create a toothbrush as well as a brush head that in addition to easy interchangeability Brush heads safe when using the toothbrush Ensure attachment of the brush head.

Diese Aufgabe wird erfindungsgemäss durch eine Zahnbürste und einen Bürstenkopf mit den im Anspruch 1 und Anspruch 10 angegebenen Merkmalen gelöst.According to the invention, this object is achieved by a toothbrush and a brush head with those in claim 1 and claim 10 specified features solved.

Bevorzugte Weiterausgestaltungen der erfindungsgemässen Zahnbürste und des Bürstenkopfes bilden Gegenstand der abhängigen Ansprüche.Preferred further developments of the inventive Toothbrush and the brush head form the subject of dependent claims.

Ein Ausführungsbeispiel der erfindungsgemässen Zahnbürste sowie des erfindungsgemässen Bürstenkopfes ist in der Zeichnung dargestellt und im folgenden näher beschrieben.An embodiment of the toothbrush according to the invention as well as the brush head according to the invention is in the Drawing shown and described in more detail below.

Es zeigen:

Fig. 1
in Seitenansicht eine Zahnbürste mit einem Handgriff und einem aufgesetzten Bürstenkopf;
Fig. 2
die Zahnbürste nach Fig. 1 in Pfeilrichtung A gesehen;
Fig. 3
in Draufsicht den Bürstenkopf sowie den Handgriff der Zahnbürste nach Fig. 1 getrennt;
Fig. 4
in Seitenansicht den Bürstenkopf sowie den vorderen Teil des Handgriffes getrennt in einem gegenüber der Fig. 1 vergrösserten Massstab;
Fig. 5
den Bürstenkopf sowie den vorderen Teil des Handgriffes gemäss Fig. 4 in Pfeilrichtung A gesehen;
Fig. 6
den Bürstenkopf sowie den vorderen Teil des Handgriffes gemäss Fig. 4 in Draufsicht; und
Fig. 7
den Bürstenkopf nach Fig. 6 in Pfeilrichtung B gesehen.
Show it:
Fig. 1
in side view a toothbrush with a handle and an attached brush head;
Fig. 2
seen the toothbrush of Figure 1 in the direction of arrow A;
Fig. 3
in plan view the brush head and the handle of the toothbrush according to Fig. 1 separately;
Fig. 4
in side view the brush head and the front part of the handle separately on an enlarged scale compared to Figure 1;
Fig. 5
seen the brush head and the front part of the handle according to Figure 4 in the direction of arrow A;
Fig. 6
the brush head and the front part of the handle according to Figure 4 in plan view. and
Fig. 7
seen the brush head of FIG. 6 in the direction of arrow B.

Gemäss Fig. 1 bis 3 weist eine Zahnbürste 1 einen Handgriff 2 mit einem auswechselbaren, auf einen vorderen Teil 3 des Handgriffes 2 aufgesetzten Bürstenkopf 4 auf. Der Bürstenkopf 4 besteht aus einem Borstenträger 5 sowie aus im Borstenträger 5 verankerten Borsten 6, deren freistehenden Enden eine Bürstfläche 7 bilden (Fig. 1). Der Borstenträger 5 ist bis zu seinem Rand hin mit Borsten bestückt, wie das aus den Fig. 3 und 6 hervorgeht. Die Zahnbürstenlängsachse ist in Fig. 2 und 3 mit 1a bezeichnet; durch sie verläuft eine Symmetrieebene E der Zahnbürste 1. 1 to 3, a toothbrush 1 has one Handle 2 with an interchangeable, on a front Part 3 of the handle 2 attached brush head 4. The brush head 4 consists of a bristle carrier 5 and from bristles 6 anchored in the bristle carrier 5, the free-standing ends form a brush surface 7 (Fig. 1). The bristle carrier 5 has bristles up to its edge equipped, as can be seen from FIGS. 3 and 6. The Longitudinal toothbrush axis is in Fig. 2 and 3 with 1a designated; a symmetry plane E runs through them Toothbrush 1.

Der Borstenträger 5 sowie auch die Bürstfläche 7 weisen vorzugsweise eine ovale Grundrissform auf, wie in Fig. 2 und 3 dargestellt; auch der vordere Teil 3 des Handgriffes 2 ist im Grundriss dieser Form angepasst. Eine Grundfläche des Borstenträgers 5, von welcher die Borsten 6 wegragen, ist in Fig. 1 mit 9 bezeichnet.The bristle carrier 5 and also the brush surface 7 have preferably an oval plan shape, as in FIG. 2 and 3; also the front part 3 of the handle 2 is adapted to this shape in the floor plan. A footprint the bristle carrier 5, from which the bristles 6 project, is designated by 9 in FIG.

In welcher Weise der Bürstenkopf 4 im vorderen Teil 3 des Handgriffes 2 wegnehmbar gehalten ist, ist insbesodere aus Fig. 5 bis 7 gut ersichtlich, in denen der Bürstenkopf 4 sowie der Handgriff 2 voneinander entfernt gezeigt werden.In what way the brush head 4 in the front part 3 of the Handle 2 is held removable, is in particular from 5 to 7, in which the brush head 4th and the handle 2 are shown apart from each other.

Der vordere, gegenüber dem übrigen Teil des Handgriffes 2 abgesetzte Teil 3 des Handgriffes 2 (vgl. Fig. 4) weist eine Ausnehmung 8 auf, die durch einen Boden 11, eine hintere Wand 10 sowie zwei Seitenwände 12, 13 festgelegt ist. Die inneren Flächen 12', 13' der Seitenwände 12, 13 verlaufen leicht geneigt zur Symmetrieebene E, und laufen nach hinten zur Wand 10 hin zusammen. Die inneren Flächen 12', 13' der Seitenwände 12, 13 sind mit je einer in Zahnbürstenlängsrichtung (Pfeilrichtung S nach Fig. 2 und 4) verlaufenden Längsnut 14, 15 sowie mit je einer Rastnut 16, 17 versehen. Die Rastnuten 16, 17 befinden sich im hinteren Bereich, nahe der hinteren Wand 10. Die oberen Flächen der Seitenwände 12, 13 bilden in Fig. 6 und 7 mit 18, 19 bezeichnete Führungsflächen.The front, in relation to the rest of the handle 2 offset part 3 of the handle 2 (see. Fig. 4) a recess 8 through a bottom 11, a rear wall 10 and two side walls 12, 13 set is. The inner surfaces 12 ', 13' of the side walls 12, 13 run slightly inclined to the plane of symmetry E, and run towards the rear towards wall 10. The inner surfaces 12 ', 13' of the side walls 12, 13 are each with one in Longitudinal toothbrush direction (arrow direction S according to FIG. 2 and 4) extending longitudinal groove 14, 15 and each with a locking groove 16, 17 provided. The locking grooves 16, 17 are in the rear area, near the rear wall 10. The top Areas of the side walls 12, 13 form in FIGS. 6 and 7 18, 19 designated guide surfaces.

Eine gerundete Absatzfläche zwischen dem vorderen, löffelartig ausgebildeten Teil 3 und dem übrigen Teil des Handgriffes 2 ist in Fig. 4 bis 6 mit 20 bezeichnet. Die Absatzfläche 20 ist mit einer zum Boden 11 parallelen Zentrierausnehmung 22 ausgestattet, deren Seitenflächen 23, 24 zur Symmetrieebene E geneigt sind, derart, dass sich die Zentrierausnehmung 22 nach hinten verjüngt.A rounded heel area between the front, spoon-shaped part 3 and the remaining part of the Handle 2 is designated by 20 in FIGS. 4 to 6. The Heel surface 20 is parallel to the floor 11 Centering recess 22 equipped, the side surfaces 23, 24 are inclined to the plane of symmetry E such that the centering recess 22 tapers to the rear.

Der Borstenträger 5 des Bürstenkopfes 4 weist einen vorderen Teil 30, einen handgriffseitigen hinteren Teil 31 und einen auf der unteren Seite des hinteren Teils 31 angebrachten Halteteil 32 auf. Der Halteteil 32 ist zu beiden Seiten mit einer in Zahnbürstenlängsrichtung S verlaufenden Führungsleiste 34, 35 versehen, wobei die Form und Breite des Halteteils 32 bzw. der Führungsleisten 34, 35 den Längsnuten 14, 15 entspricht.The bristle carrier 5 of the brush head 4 has one front part 30, a handle-side rear part 31 and one on the lower side of the rear part 31 attached holding part 32. The holding part 32 is closed both sides with a toothbrush longitudinal direction S extending guide bar 34, 35 provided, the Shape and width of the holding part 32 or the guide strips 34, 35 corresponds to the longitudinal grooves 14, 15.

Am handgriffseitigen hinteren, freien Ende ist der Halteteil 32 mit zwei federelastischen, quer zur Längsrichtung S elastisch deformierbaren Rastzungen 37, 38 versehen, die parallel zur Grundfläche 9 sowie zu einer unteren Führungsfläche 33 des hinteren Teiles 31 angeordnet sind und auf ihren Aussenseiten je einen Rastnocken 39, 40 aufweisen. Die Rastnocken 39, 40 entsprechen in ihrer Form und Anordnung den Rastnuten 16, 17.At the rear free end of the handle is the Holding part 32 with two resilient, transverse to Longitudinal direction S elastically deformable locking tongues 37, 38 provided that parallel to the base 9 and a lower guide surface 33 of the rear part 31 are arranged and one on their outer sides Have locking cams 39, 40. The locking cams 39, 40 correspond in their shape and arrangement to the locking grooves 16, 17th

Am hinteren Teil 31 des Borstenträgers 5 ist ein Zentriervorsprung 42 angebracht, der gegengleich zur im Handgriff 22 vorhandenen Zentrierausnehmung 22 ausgebildet ist und zwei zur Symmetrieebene E geneigte, nach hinten zusammenlaufende Seitenflächen 43, 44 aufweist.At the rear part 31 of the bristle carrier 5 is a Centering projection 42 attached, which is opposite to the im Handle 22 existing centering recess 22 is formed and two inclined to the plane of symmetry E, to the rear has converging side surfaces 43, 44.

Der vordere Teil 30 des Borstenträgers 5 weist hinten eine gerundete untere Absatzfläche 45 (vgl. Fig. 5 und 6) auf, die gegengleich zu einer gerundeten Stirnfläche 46 des vorderen Handgriffteils 3 ausgestaltet ist. Eine hintere Anschlagfläche 47 des hinteren Borstenträgerteils 31, die mit dem bereits erwähnten Zentriervorprung 42 versehen ist, ist ebenfalls derart gerundet, dass sie der Absatzfläche 20 des Handgriffes 2 entspricht.The front part 30 of the bristle carrier 5 has a rear rounded lower heel surface 45 (see FIGS. 5 and 6), the opposite of a rounded end face 46 of the front handle part 3 is designed. A rear one Stop surface 47 of the rear bristle carrier part 31, the provided with the centering projection 42 already mentioned is also rounded in such a way that it is the Heel area 20 of the handle 2 corresponds.

Beim Aufsetzen eines neuen Bürstenkopfes 4 auf den Handgriff 2 wird der Borstenträger 5 in Zahnbürstenlängsrichtung (Pfeilrichtung S nach Fig. 4) mit seiner Führungsfläche 33 auf die oberen Führungsflächenflächen 18, 19 des vorderen Handgriffteils 3 aufgeschoben, wobei der Halteteil 32 in die Ausnehmung 8 eingefügt wird. Die Führungsleisten 34. 35 gelangen in die gegengleichen Längsnuten 14, 15 und verkeilen sich leicht mit denselben, die Rastzungen 37, 38 rasten am Ende dieser Schubbewegung in einer Endstellung des Borstenträgers 5 mit ihren Rastnocken 39, 40 in die Rastnuten 16, 17 ein. Dabei kommt die Absatzfläche 45 des Borstenträgers 5 an der Stirnfläche 46 des Handgriffs 2 und die Anschlagfläche 47 an der Absatzfläche 20 zum Anliegen, wobei auch der Zentriervorprung 42 in die Zentrierausnehmung 22 eingeführt wird und sich mit dieser verkeilt. Zum Abnehmen eines verbrauchten Bürstenkopfes 4 wird der Borstenträger 5 von Hand in Zahnbürstenlängsrichtung (Gegenrichtung zu Pfeil S nach Fig. 4) nach vorne gedrückt - beispielsweise durch Einwirkung auf die leicht nach oben vorstehende Anschlagfläche 47. Dadurch wird die Keilwirkung der Zentrierelemente (Zentrierausnehmung 22, Zentriervorsprung 42) überwunden, und die Rastzungen 37, 38 quer zur Längsrichtung S elastisch zusammengedrückt; die Rastnocken 39, 40 rasten aus den Rastnuten 16, 17 aus, und der Borstenkopf 5 wird aus der Ausnehmung 8 hinausgeschoben.When placing a new brush head 4 on the Handle 2, the bristle holder 5 in Toothbrush longitudinal direction (arrow direction S according to Fig. 4) with its guide surface 33 on the upper Guide surface surfaces 18, 19 of the front handle part 3 pushed on, the holding part 32 in the recess 8 is inserted. The guide strips 34, 35 get into the opposite longitudinal grooves 14, 15 and wedge easily with the same, the locking tongues 37, 38 snap at the end of this Thrust movement in an end position of the bristle carrier 5 with their locking cams 39, 40 in the locking grooves 16, 17. The heel surface 45 of the bristle carrier 5 arrives the end face 46 of the handle 2 and the stop surface 47 to rest on the heel surface 20, with the Centering projection 42 in the centering recess 22nd is introduced and wedged with it. To lose weight a used up brush head 4 becomes the bristle holder 5 by hand in the longitudinal direction of the toothbrush (opposite direction Arrow S of Fig. 4) pushed forward - for example by acting on the slightly protruding one Stop surface 47. This will wedge the Centering elements (centering recess 22, centering projection 42) overcome, and the locking tongues 37, 38 transverse to Longitudinal direction S elastically compressed; the locking cams 39, 40 disengage from the locking grooves 16, 17, and the Bristle head 5 is pushed out of the recess 8.

In dieser Art und Weise wird in einfacher Weise eine von Hand - ohne Verwendung eines zusätzlichen Werkzeuges - leicht lösbare, dennoch sichere Befestigung des auswechselbaren Bürstenkopfes 4 realisiert. Die durch den Zentriervorsprung 42 und die Zentrierausnehmung 22 gewährleistete zusätzliche Verriegelung beider Zahnbürstenteile verbessert den Halt des Bürstenkopfes 4 im Handgriff 2 beim Zähneputzen, d. h. sie verhindert, dass der Bürstenkopf 4 wackelt oder sich gar ungewollt vom Handgriff 2 löst. Dadurch wird jegliche Verletzungsgefähr beim Gebrauch der Zahnbürste eliminiert. Ausserdem werden bei der erfindungsgemässen Ausführung des Bürstenkopfes 5 und des Handgriffes 2 vorteilhafterweise Zwischenräume, in welche Wasser und Fremdpartikel eindringen könnten, beim Zusammenfügen beider Zahnbürstenteile gut abgedichtet; eine Schmutzablagerung in der Ausnehmung 8 wird weitgehend verhindert, was die Wartung der Zahnbürste erleichtert und aus hygienischen Gründen von grossem Vorteil ist.In this way, one of Hand - without using an additional tool - easily detachable, yet secure attachment of the interchangeable brush head 4 realized. The through the Centering projection 42 and the centering recess 22nd guaranteed additional locking of both Toothbrush parts improve the hold of the brush head 4 in handle 2 when brushing teeth, d. H. it prevents that the brush head 4 wobbles or even unwanted from Handle 2 releases. This will result in any risk of injury eliminated when using the toothbrush. Also be in the embodiment of the brush head 5 according to the invention and the handle 2 advantageously spaces, in which water and foreign particles could penetrate when Joining both toothbrush parts well sealed; a dirt deposit in the recess 8 is largely prevents what facilitates the maintenance of the toothbrush and is of great advantage for hygienic reasons.

Es wäre an sich möglich, die Steckverbindung des Bürstenkopfes mit dem Handgriff derart durchzuführen, dass der Handgriff mit deformierbaren Rastzungen mit Rastnocken und der Borstenträger mit Rastausnehmungen ausgestattet ist. Es kann allerdings sinnvoller sein, Teile wie beispielsweise die Rastzungen, die mit der Zeit Abnützungserscheinungen aufweisen dürften, dem nach Verbrauch wegzuwerfenden Zahnbürstenteil zuzuordnen. Eine umgekehrte Ausgestaltung der zusätzlichen Zentrierung (Zentriervorsprung am Handgriff, Zentrierausnehmung im Borstenträger) ist ebenfalls durchaus denkbar.It would be possible in itself, the connector of the Brush head with the handle so that the handle with deformable locking tongues with locking cams and the bristle holder is equipped with notches is. However, it can make more sense to use parts like for example the latches that change over time Signs of wear are likely to show, according to Allocate consumption of the toothbrush part to be disposed of. A reverse configuration of the additional centering (Centering projection on the handle, centering recess in the Bristle holder) is also quite conceivable.

Die sich in der Zahbürstenlängsrichtung S erstreckende Längsführung für den auswechselbaren Bürstenkopf könnte auch durch Führungsleisten im Handgriff, in die gegengleiche Längsnuten im Borstenträger eingreifen, gebildet sein.The one extending in the toothbrush longitudinal direction S. Longitudinal guide for the replaceable brush head could also through guide strips in the handle, in the engage opposing longitudinal grooves in the bristle carrier, be educated.

Die erfindungsgemässe Ausführungsform der Zahnbürste und des auswechselbaren Bürstenkopfes ist nicht nur ästhetisch, sondern auch ökologisch vorteilhaft, da für die wegzuwerfenden Teile verhältnismässig wenig Material benötigt wird.The embodiment of the toothbrush and the replaceable brush head is not only aesthetically, but also ecologically advantageous because for the parts to be discarded relatively little material is needed.

Claims (13)

  1. Toothbrush with a handle (2), on the front part (3) of which there is attached in an exchangeable manner a brush head (4) which has a bristle carrier (5) with projecting bristles (6), which bristle carrier is retained in a longitudinal guide in the front part (3) of the handle (2), said longitudinal guide extending in the longitudinal direction (S) of the toothbrush, and can be displaced along said longitudinal guide in order to be exchanged, and which, in its end position, is fixed against displacement in the longitudinal direction (S) by means of a releasable snap-action connection (16, 17, 37, 38), characterized in that the snap-action connection has two latching tongues (37, 38) which can be deformed elastically transversely with respect to the longitudinal direction (S), are located on the bristle carrier (5) or on the front part (3) of the handle (2) and are provided with latching protuberances (39, 40) which can be latched in latching grooves (16, 17) on the front part (3) of the handle (2) or on the bristle carrier (5); and in that, in order to improve the hold of the brush head (4) in the handle (2), the bristle carrier (5) and the handle (2) are assigned centring elements (22, 42) which wedge with respect to one another in the end position of the bristle carrier (5), it being the case that one centring element is formed by a centring protrusion (42), which extends in the longitudinal direction (S) of the toothbrush, and the other centring element is formed by a mating centring recess (22).
  2. Toothbrush according to Claim 1, characterized in that the longitudinal guide is formed by two mutually opposite longitudinal grooves (14, 15), in which in each case one guide strip (34, 35) on the bristle carrier (5) engages.
  3. Toothbrush according to Claim 1, characterized in that the longitudinal guide is formed by two mutually opposite guide strips which each engage in a groove on the bristle carrier (5).
  4. Toothbrush according to Claim 2 or 3, characterized in that the front part (3) of the handle (2) is provided with a recess (8) which has the longitudinal grooves (14, 15) or the guide strips, and the bristle carrier (5) is provided with a retaining part (32) which has the guide strips (34, 35) or the grooves, respectively.
  5. Toothbrush according to one of Claims 2 to 4, characterized in that the guide strips (34, 35) and the longitudinal grooves (14, 15) are designed to converge slightly in the pushing-on direction.
  6. Toothbrush according to Claim 1, characterized in that the side surfaces (23, 24; 43, 44) of the centring recess (22) and of the centring protrusion (42) are designed to converge in the pushing-on direction.
  7. Toothbrush according to Claim 1 or 6, characterized in that the centring recess (22) is arranged in the handle (2) and the centring protrusion (42) is arranged on a rear part (31) of the bristle carrier (5).
  8. Toothbrush according to Claim 1 or 6, characterized in that the centring recess is arranged on a rear part (31) of the bristle carrier (5) and the centring protrusion is arranged in the handle (2).
  9. Toothbrush according to one of Claims 1-8, characterized in that the bristle carrier (5) is provided with bristles up to its border.
  10. Brush head for a toothbrush according to Claims 1 to 9, having a bristle carrier (5) with projecting bristles (6), having two guide elements (34, 35) which are spaced apart parallel to one another and extend in the longitudinal direction (S), having a centring element (42) and having a latching arrangement (37-40), characterized in that the latching arrangement has two latching tongues (37, 38) which can be deformed elastically transversely with respect to the longitudinal direction (S) and are provided with latching protuberances (39, 40) which can be latched in latching grooves (16, 17) on the front part (3) of the handle (2), or the latching arrangement has two latching grooves which are located opposite one another in relation to the longitudinal axis (S) and in which latching protuberances, which are arranged on elastically deformable latching tongues on the handle (2), can be latched, and in that the centring element is designed as a centring protrusion (42) or a centring recess, which is intended to interact respectively with a mating centring recess (22) or a mating centring protrusion in the handle (2).
  11. Brush head according to Claim 10, characterized in that the guide elements are formed by guide strips (34, 35).
  12. Brush head according to Claim 10, characterized in that the guide elements are formed by longitudinal grooves.
  13. Brush head according to one of Claims 10-12, characterized in that the bristle carrier (5) is provided with bristles up to its border.
EP97921573A 1996-07-08 1997-05-26 Toothbrush and brush head for said toothbrush Expired - Lifetime EP0910258B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH1705/96 1996-07-08
CH170596 1996-07-08
CH170596 1996-07-08
PCT/CH1997/000209 WO1998001055A1 (en) 1996-07-08 1997-05-26 Toothbrush and brush head for said toothbrush

Publications (2)

Publication Number Publication Date
EP0910258A1 EP0910258A1 (en) 1999-04-28
EP0910258B1 true EP0910258B1 (en) 2001-12-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97921573A Expired - Lifetime EP0910258B1 (en) 1996-07-08 1997-05-26 Toothbrush and brush head for said toothbrush

Country Status (6)

Country Link
US (1) US6237183B1 (en)
EP (1) EP0910258B1 (en)
BR (1) BR9710249A (en)
DE (1) DE59705675D1 (en)
NO (1) NO990092D0 (en)
WO (1) WO1998001055A1 (en)

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US7240390B2 (en) 2002-09-27 2007-07-10 Trisa Holding Ag Personal hygiene device
EP2085205A1 (en) 2002-09-27 2009-08-05 Trisa Holding AG Method for the production of a toothbrush comprising an electric functional component
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US8307488B2 (en) 2002-09-27 2012-11-13 Trisa Holding Ag Oral hygiene device
USD1025611S1 (en) 2022-09-14 2024-05-07 Ranir, Llc Toothbrush

Also Published As

Publication number Publication date
NO990092L (en) 1999-01-08
BR9710249A (en) 1999-08-10
DE59705675D1 (en) 2002-01-17
US6237183B1 (en) 2001-05-29
EP0910258A1 (en) 1999-04-28
WO1998001055A1 (en) 1998-01-15
NO990092D0 (en) 1999-01-08

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