EP0704179B1 - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
EP0704179B1
EP0704179B1 EP95109184A EP95109184A EP0704179B1 EP 0704179 B1 EP0704179 B1 EP 0704179B1 EP 95109184 A EP95109184 A EP 95109184A EP 95109184 A EP95109184 A EP 95109184A EP 0704179 B1 EP0704179 B1 EP 0704179B1
Authority
EP
European Patent Office
Prior art keywords
holding recess
push button
insert
bristle insert
brush insert
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
EP95109184A
Other languages
German (de)
French (fr)
Other versions
EP0704179A1 (en
Inventor
Alwin Blum
Matthias Georgi
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.)
Fuchs GmbH
Original Assignee
Fuchs GmbH
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Filing date
Publication date
Application filed by Fuchs GmbH filed Critical Fuchs GmbH
Publication of EP0704179A1 publication Critical patent/EP0704179A1/en
Application granted granted Critical
Publication of EP0704179B1 publication Critical patent/EP0704179B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B7/00Bristle carriers arranged in the brush body
    • A46B7/04Bristle carriers arranged in the brush body interchangeably removable bristle carriers
    • A46B7/042Clip or snap connection for bristle carriers
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B7/00Bristle carriers arranged in the brush body
    • A46B7/04Bristle carriers arranged in the brush body interchangeably removable bristle carriers
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures

Definitions

  • the invention relates to a toothbrush with a interchangeable, in an elongated recess head part connected with a handle and a handle snap-in bristle insert and one with the Bristle insert connected push button, which is activated by a near the handle-side end of the holding recess arranged opening of the rear wall of the retaining recess protrudes, being on both sides of the pusher button and the front at the end of the Bristle insert on the circumferential surface of each Protruding ledges project into locking grooves on the inner wall the holding recess intervene that only in Area of the locking strips on the inner wall of the Retaining recess are arranged.
  • Toothbrushes are known in numerous embodiments. They have in common that the bristle insert is interchangeable is, the connection between the bristle insert and the headboard is done by a snap connection. On the one hand the bristle insert should be used when using the toothbrush be firmly anchored in the headboard so that it does not move can unintentionally solve. On the other hand, the Snap connection but so easy to release that the Bristle insert in a simple manner and without use of a tool can be replaced.
  • the object of the invention is therefore a toothbrush to create the type mentioned, in which the Advantages of an easy detachability of the bristle insert with the advantages of a safe and reliable operation backlash-free connection between bristle insert and Headboard to be connected.
  • the bristle insert extends over most of its length tapered to the end facing away from the push button and in the tapered area with smooth, uninterrupted portions of its peripheral surface on smooth, uninterrupted sections of the inner wall of the Retaining recess is present.
  • the peripheral surface of the Bristle insert and the inner wall of the holding recess in the substantially perpendicular to the bristle-side base of the Bristle insert. Therefore, the bristle insert occurs supporting wedge effect only in the longitudinal direction of the Bristle insert on; loosening the bristle insert will not affected, especially since the push button located in that area of the bristle insert in which the holding effect essentially only by the mutual locking bars is caused.
  • the bristle insert with his Push button at the handle end of the opening of the Support s the rear wall. This will make the bristle insert in its longitudinal direction clamped elastically, the Support on the one hand on the push button and on the other hand the tapered side surfaces. There these two support areas at a sufficiently large distance lie to each other, the elastic suspension of the material in between on the cheap Anchoring effect.
  • the Bristle insert is from his the push button having end in the wedge connection with the Headboard pressed.
  • the flat, not by strips or Grooves interrupted contact between the brush head and the head part in the tapered section secure support and connection.
  • the bristle insert in the floor plan semicircular section with a larger radius at its has handle-side end, of which essentially rectilinear peripheral sections to a semicircular Smaller radius section at the opposite end converge.
  • the toothbrush shown in FIG. 1 has a main part 1 on, which is molded in one piece from plastic and a Has handle 2, a handle 3 and a head part 4.
  • a bristle insert 5 is replaceable in the head part 4 added, the bristles 6 carries.
  • the bristle insert 5 is snapping into a holding recess 7 of the head part 4 used.
  • Bristle insert 5 is elongated and extends from a wider, handle-side end 8 to one narrower, opposite end 9.
  • the plastic bristle insert 5 is on its back with a button 10 provided in inserted state through an opening 11 in the rear wall 12 of the head part 4 protrudes.
  • the push button 10 and the associated opening 11 are opposite the longitudinal center of the Retaining recess 7 offset and are close to the handle side End of the holding recess 7 arranged.
  • the bristle insert 5 seen in plan - over the most of its length to that of the push button 10 opposite end 9.
  • the peripheral surface 13 of the bristle insert 5 lies flat, i.e. with a smooth, uninterrupted surface on one also smooth, uninterrupted section 21 of the Holding recess 7 on. This section 21 is also not interrupted by locking grooves.
  • the button knob 10 projects with its preferably curved surface 22 over the outside the head part 4, as can be seen from Fig. 1, so that the bristle insert 5 by a relatively light Pressure on the curved outer surface 22 of the push button 10 can be solved. Nevertheless, the bristle insert is 5 in the inserted state by the between the surfaces 20 and 21 occurring wedge or clamping action safely in Headboard 4 held. Instead, the pusher button also be designed so that it is flush with the outside of the head part or overall over this protrudes.
  • the bristle insert 5 in plan preferably one semicircular section with a larger radius at its handle end 8 on. Run from this section essentially rectilinear circumferential sections converging to a semicircular section with smaller radius at the opposite end 9. Deviating another of these can go towards one end tapered floor plan can be selected.
  • the bristle insert 5 is in the holding recess 7 of the Headboard fitted that the end 8 form-fitting and is free of play at the handle-side end of the inner wall 14.
  • the insertion takes place in such a way that the front locking bar 18 engages in the locking groove 19; then the end 8 is in the holding recess 7 swung in.

Description

Die Erfindung betrifft eine Zahnbürste mit einem auswechselbaren, in einer länglichen Halteaussparung eines mit einem Stiel und einem Griffstück verbundenen Kopfteils einrastbaren Borsteneinsatz und einem mit dem Borsteneinsatz verbundenen Drückerknopf, der durch eine nahe dem griffseitigen Ende der Halteaussparung angeordneten Öffnung der Rückwand der Halteaussparung ragt, wobei beiderseits des Drückerknopfes und stirnseitig an dem dem Drückerknopf abgekehrten Ende des Borsteneinsatzes an dessen Umfangsfläche jeweils Rastleisten vorspringen, die in Rastnuten an der Innenwand der Halteaussparung eingreifen, die nur im Bereich der Rastleisten an der Innenwand der Halteaussparung angeordnet sind.The invention relates to a toothbrush with a interchangeable, in an elongated recess head part connected with a handle and a handle snap-in bristle insert and one with the Bristle insert connected push button, which is activated by a near the handle-side end of the holding recess arranged opening of the rear wall of the retaining recess protrudes, being on both sides of the pusher button and the front at the end of the Bristle insert on the circumferential surface of each Protruding ledges project into locking grooves on the inner wall the holding recess intervene that only in Area of the locking strips on the inner wall of the Retaining recess are arranged.

Derartige, auch als Wechselkopf-Zahnbürsten bezeichnete Zahnbürsten sind in zahlreichen Ausführungsformen bekannt. Ihnen ist gemeinsam, daß der Borsteneinsatz auswechselbar ist, wobei die Verbindung zwischen dem Borsteneinsatz und dem Kopfteil durch eine Rastverbindung erfolgt. Zum einen soll der Borsteneinsatz bei der Benutzung der Zahnbürste fest im Kopfteil verankert sein, so daß er sich nicht unbeabsichtigt lösen kann. Zum anderen soll die Rastverbindung aber so leicht lösbar sein, daß der Borsteneinsatz in einfacher Weise und ohne Verwendung eines Werkzeugs ausgewechselt werden kann. Such, also referred to as interchangeable toothbrushes Toothbrushes are known in numerous embodiments. They have in common that the bristle insert is interchangeable is, the connection between the bristle insert and the headboard is done by a snap connection. On the one hand the bristle insert should be used when using the toothbrush be firmly anchored in the headboard so that it does not move can unintentionally solve. On the other hand, the Snap connection but so easy to release that the Bristle insert in a simple manner and without use of a tool can be replaced.

Bei einer bekannten Zahnbürste (DE-GM 91 09 625) ist der Borsteneinsatz so gestaltet, daß seine Seitenwände in Richtung der Borsten konvergieren. Diese Seitenwände und die jeweils zugeordneten Innenwände der Halteaussparung sind eben und frei von Nuten ausgeführt. Die von Rastleisten bzw. Rastvorsprüngen und zugeordneten Rastnuten gebildeten Rastverbindungen sind jeweils an den beiden Enden des Borsteneinsatzes vorgesehen. Da diese Rastverbindung an beiden Enden des Borsteneinsatzes nahe an dessen borstenseitiger Außenfläche angreift, besteht bei einer Durchbiegung des Kopfteils die Gefahr, daß die Rastverbindung an einem Ende des Borsteneinsatzes ausklinkt und sich der Borsteneinsatz vom Kopfteil löst. Um dies zu vermeiden, muß insbesondere an der griffseitigen Rastverbindung eine verhältnismäßig große Hinterschneidung vorgesehen sein, um einen formschlüssigen Halteeingriff zu gewährleisten. Dies hat andererseits aber zur Folge, daß zum Lösen des Borsteneinsatzes eine verhältnismäßig starke Verformung und damit große Kraft erforderlich ist.In a known toothbrush (DE-GM 91 09 625) Bristle insert designed so that its side walls in Converge towards the bristles. These sidewalls and the respective assigned inner walls of the holding recess are flat and free of grooves. The of Locking strips or locking projections and assigned Locking grooves formed locking connections are in each case on the provided at both ends of the bristle insert. This one Snap connection at both ends of the bristle insert close attacks on its bristle-side outer surface with a deflection of the head part, the risk that the Snap connection at one end of the bristle insert unlatches and the bristle insert detaches from the head part. To avoid this, the handle-side locking connection a relatively large Undercut can be provided to form a positive To ensure hold engagement. On the other hand, this has with the result that a to loosen the bristle insert relatively strong deformation and therefore great force is required.

Bei einer anderen bekannten Zahnbürste (DE-OS 30 38 895) sind die Rastleisten an den zueinander parallelen Seitenflächen des Borsteneinsatzes im Abstand zueinander angeordnet. Da die Umfangsfläche des Borsteneinsatzes am gesamten Umfang senkrecht zur borstenseitigen Grundfläche des Borsteneinsatzes verläuft, erfolgt die Verbindung zwischen dem Borsteneinsatz und dem Kopfteil ohne Klemmwirkung nur durch die an den Rastleisten aufgebrachten Rastkräfte.In another known toothbrush (DE-OS 30 38 895) are the locking bars on the parallel to each other Side surfaces of the bristle insert at a distance from each other arranged. Since the peripheral surface of the bristle insert on entire circumference perpendicular to the base surface on the bristle side of the bristle insert, the connection is made between the bristle insert and the headboard without Clamping effect only by the on the locking bars applied locking forces.

Auch bei einer Zahnbürste der eingangs genannten Gattung (DE-PS 37 24 640) verläuft die Umfangsfläche des Borsteneinsatzes senkrecht zur borstenseitigen Grundfläche des Borsteneinsatzes, und die Verankerung des Borsteneinsatzes erfolgt ausschließlich durch die Halteleisten, die sich hierbei über einen wesentlichen Teil der Länge der zueinander parallelen Seitenflächen des Borsteneinsatzes erstrecken. Die die Rastleisten aufnehmende Rastnut erstreckt sich über den gesamten inneren Umfang der Halteaussparung wodurch die Berührungsfläche zwischen der Umfangsfläche des Borsteneinsatzes und der Halteaussparung weiter verringert wird.Even with a toothbrush of the type mentioned at the beginning (DE-PS 37 24 640) runs the peripheral surface of the Bristle insert perpendicular to the base on the bristle side of the bristle insert, and the anchoring of the Bristle use is made exclusively by Retaining strips, which cover an essential part the length of the parallel side surfaces of the Extend bristle insert. The locking bars receiving locking groove extends over the entire inner circumference of the holding recess whereby the Contact surface between the peripheral surface of the Bristle insert and the holding recess further reduced becomes.

Aufgabe der Erfindung ist es daher, eine Zahnbürste der eingangs genannten Gattung zu schaffen, bei der die Vorteile einer leichten Lösbarkeit des Borsteneinsatzes mit den Vorteilen einer im Betrieb sicheren und spielfreien Verbindung zwischen Borsteneinsatz und Kopfteil verbunden werden.The object of the invention is therefore a toothbrush to create the type mentioned, in which the Advantages of an easy detachability of the bristle insert with the advantages of a safe and reliable operation backlash-free connection between bristle insert and Headboard to be connected.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß sich der Borsteneinsatz über den größten Teil seiner Länge zu dem dem Drückerknopf abgekehrten Ende verjüngt und in dem sich verjüngenden Bereich mit glatten, ununterbrochenen Abschnitten seiner Umfangsfläche flächig an glatten, ununterbrochenen Abschnitten der Innenwand der Halteaussparung anliegt.This object is achieved in that the bristle insert extends over most of its length tapered to the end facing away from the push button and in the tapered area with smooth, uninterrupted portions of its peripheral surface on smooth, uninterrupted sections of the inner wall of the Retaining recess is present.

Durch die sich zum kopfseitigen Ende hin verjüngende Grundrißgestalt des Borsteneinsatzes und der Halteaussparung wird eine Keil- oder Klemmwirkung erreicht, durch die der Borsteneinsatz sicher im Kopfteil gehalten wird. Diese Klemmwirkung tritt an verhältnismäßig großen, ununterbrochenen Flächenbereichen der Umfangsfläche des Borsteneinsatzes ein, so daß dieser auch bei einer Verformung des Kopfteils bei der Benutzung noch sicher gehalten wird. Due to the tapering towards the head end Floor plan of the bristle insert and Retaining recess becomes a wedge or clamping effect reached, through which the bristle insert securely in the head part is held. This clamping effect occurs proportionately large, uninterrupted areas of the Circumferential surface of the bristle insert, so that it too if the head section is deformed when still in use is kept safe.

Vorzugsweise verlaufen die Umfangsfläche des Borsteneinsatzes und die Innenwand der Halteaussparung im wesentlichen senkrecht zur borstenseitigen Grundfläche des Borsteneinsatzes. Deshalb tritt die den Borsteneinsatz abstützende Keilwirkung nur in Längsrichtung des Borsteneinsatzes auf; das Lösen des Borsteneinsatzes wird dadurch nicht beeinträchtigt, zumal sich der Drückerknopf in demjenigen Bereich des Borsteneinsatzes befindet, in dem die Haltewirkung im wesentlichen nur durch die beiderseitigen Rastleisten verursacht wird.Preferably, the peripheral surface of the Bristle insert and the inner wall of the holding recess in the substantially perpendicular to the bristle-side base of the Bristle insert. Therefore, the bristle insert occurs supporting wedge effect only in the longitudinal direction of the Bristle insert on; loosening the bristle insert will not affected, especially since the push button located in that area of the bristle insert in which the holding effect essentially only by the mutual locking bars is caused.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist vorgesehen, daß sich der Borsteneinsatz mit seinem Drückerknopf am griffseitigen Ende der Öffnung der Rückwand abstützt. Dadurch wird der Borsteneinsatz in seiner Längsrichtung elastisch eingespannt, wobei die Abstützung einerseits am Drückerknopf und andererseits an den sich keilförmig verjüngenden Seitenflächen erfolgt. Da diese beiden Abstützbereiche in ausreichend großem Abstand zueinander liegen, wirkt sich die elastische Federung des dazwischen befindlichen Materials günstig auf die Verankerungswirkung aus. Mit anderen Worten der Borsteneinsatz wird von seinem den Drückerknopf aufweisenden Ende her in die Keilverbindung mit dem Kopfteil gedrückt. Die flächige, nicht durch Leisten oder Nuten unterbrochene Berührung zwischen dem Bürstenkopf und dem Kopfteil in dem sich verjüngenden Abschnitt bewirkt eine sichere Abstützung und Verbindung.According to a preferred embodiment of the invention provided that the bristle insert with his Push button at the handle end of the opening of the Supports the rear wall. This will make the bristle insert in its longitudinal direction clamped elastically, the Support on the one hand on the push button and on the other hand the tapered side surfaces. There these two support areas at a sufficiently large distance lie to each other, the elastic suspension of the material in between on the cheap Anchoring effect. In other words the Bristle insert is from his the push button having end in the wedge connection with the Headboard pressed. The flat, not by strips or Grooves interrupted contact between the brush head and the head part in the tapered section secure support and connection.

Gemäß einer vorteilhaften Ausführungsform der Verbindung ist vorgesehen, daß der Borsteneinsatz im Grundriß einen halbkreisförmigen Abschnitt mit größerem Radius an seinem griffseitigen Ende aufweist, von dem im wesentlichen geradlinige Umfangsabschnitte zu einem halbkreisförmigem Abschnitt mit kleinerem Radius am entgegengesetzten Ende konvergieren. According to an advantageous embodiment of the connection it is provided that the bristle insert in the floor plan semicircular section with a larger radius at its has handle-side end, of which essentially rectilinear peripheral sections to a semicircular Smaller radius section at the opposite end converge.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung näher erläutert, das in der Zeichnung dargestellt ist. Es zeigt:

  • Fig. 1 eine Zahnbürste in einer Seitenansicht,
  • Fig. 2 eine Ansicht der Zahnbürste nach Fig. 1 in Richtung des Pfeiles II, jedoch mit abgenommenem Borsteneinsatz,
  • Fig. 3 einen vergrößerten Teil-Längsschnitt durch das Kopfteil der Zahnbürste nach Fig. 1 mit herausgenommenem Borsteneinsatz,
  • Fig. 4 eine Draufsicht auf den Borsteneinsatz in Richtung des Pfeiles IV in Fig. 3 und
  • Fig. 5 eine Stirnansicht des Borsteneinsatzes in Richtung des Pfeiles V in Fig. 4.
  • An exemplary embodiment of the invention is illustrated below, which is shown in the drawing. It shows:
  • 1 is a toothbrush in a side view,
  • 2 is a view of the toothbrush of FIG. 1 in the direction of arrow II, but with the bristle insert removed,
  • 3 shows an enlarged partial longitudinal section through the head part of the toothbrush according to FIG. 1 with the bristle insert removed,
  • Fig. 4 is a plan view of the bristle insert in the direction of arrow IV in Fig. 3 and
  • 5 shows an end view of the bristle insert in the direction of arrow V in FIG. 4.
  • Die in Fig. 1 gezeigte Zahnbürste weist ein Hauptteil 1 auf, das einstückig aus Kunststoff geformt ist und ein Griffstück 2, einen Stiel 3 und eine Kopfteil 4 aufweist. Im Kopfteil 4 ist ein Borsteneinsatz 5 auswechselbar aufgenommen, der Borsten 6 trägt. Der Borsteneinsatz 5 ist in eine Halteaussparung 7 des Kopfteils 4 einrastend eingesetzt.The toothbrush shown in FIG. 1 has a main part 1 on, which is molded in one piece from plastic and a Has handle 2, a handle 3 and a head part 4. A bristle insert 5 is replaceable in the head part 4 added, the bristles 6 carries. The bristle insert 5 is snapping into a holding recess 7 of the head part 4 used.

    Wie man in Einzelheiten in den Fig. 3-5 erkennt, ist der dort mit nur angedeuteten Borsten 6 dargestellte Borsteneinsatz 5 länglich ausgeführt und erstreckt sich von einem breiteren, griffseitigen Ende 8 zu einem schmaleren, entgegengesetzten Ende 9.3-5, is the shown there with only indicated bristles 6 Bristle insert 5 is elongated and extends from a wider, handle-side end 8 to one narrower, opposite end 9.

    Der aus Kunststoff bestehende Borsteneinsatz 5 ist an seiner Rückseite mit einem Drückerknopf 10 versehen, der im eingesetzten Zustand durch eine Öffnung 11 in der Rückwand 12 des Kopfteils 4 ragt. Der Drückerknopf 10 und die zugeordnete Öffnung 11 sind gegenüber der Längsmitte der Halteaussparung 7 versetzt und sind nahe dem griffseitigen Ende der Halteaussparung 7 angeordnet.The plastic bristle insert 5 is on its back with a button 10 provided in inserted state through an opening 11 in the rear wall 12 of the head part 4 protrudes. The push button 10 and the associated opening 11 are opposite the longitudinal center of the Retaining recess 7 offset and are close to the handle side End of the holding recess 7 arranged.

    Aus der Umfangsfläche 13 des Borsteneinsatzes 5, die ebenso wie die zugeordnete Innenwand 14 der Halteaussparung 7 im wesentlichen senkrecht zur borstenseitigen Grundfläche 15 des Borsteneinsatzes 5 verläuft, springen beiderseits des Drückerknopfes 10 Rastleisten 16 vor, die in gegenüberliegende Rastnuten 17 der Innenwand 14 der Rastaussparung 7 eingreifen Eine stirnseitige Rastleiste 18 an dem dem Drückerknopf 10 abgekehrten Ende des Borsteneinsatzes 5 greift in eine dort in der Innenwand 14 der Halteaussparung 7 vorgesehene Rastnut 19.From the peripheral surface 13 of the bristle insert 5, the same how the associated inner wall 14 of the holding recess 7 in substantially perpendicular to the base 15 on the bristle side the bristle insert 5 runs, jump on both sides of the Pusher button 10 locking bars 16 in front opposite locking grooves 17 of the inner wall 14 of the Engage locking recess 7 A front locking bar 18 at the end facing away from the push button 10 Bristle insert 5 engages there in the inner wall 14 the holding recess 7 provided locking groove 19th

    Wie man besonders deutlich aus Fig. 4 erkennt, verjüngt sich der Borsteneinsatz 5 - im Grundriß gesehen - über den größten Teil seiner Länge zu dem dem Drückerknopf 10 abgekehrten Ende 9. In dem sich verjüngenden Bereich 20 liegt die Umfangsfläche 13 des Borsteneinsatzes 5 flächig, d.h. mit einer glatten, ununterbrochenen Fläche an einem ebenfalls glatten, ununterbrochenen Abschnitt 21 der Halteaussparung 7 an. Dieser Abschnitt 21 ist auch nicht durch Rastnuten unterbrochen.As can be seen particularly clearly from FIG. 4, tapered the bristle insert 5 - seen in plan - over the most of its length to that of the push button 10 opposite end 9. In the tapered area 20 the peripheral surface 13 of the bristle insert 5 lies flat, i.e. with a smooth, uninterrupted surface on one also smooth, uninterrupted section 21 of the Holding recess 7 on. This section 21 is also not interrupted by locking grooves.

    Im eingesetzten Zustand ragt der Drückernopf 10 mit seiner vorzugsweise gewölbten Oberfläche 22 über die Außenseite des Kopfteils 4 hinaus, wie man aus Fig. 1 erkennt, so daß der Borsteneinsatz 5 durch einen verhältnismäßig leichten Druck auf die gewölbte Außenfläche 22 des Drückerknopfes 10 gelöst werden kann. Gleichwohl ist der Borsteneinsatz 5 im eingesetzten Zustand durch die zwischen den Flächen 20 und 21 auftretende Keil- bzw. Klemmwirkung sicher im Kopfteil 4 gehalten. Stattdessen kann der Drückerknopf auch so ausgeführt sein, daß er bündig mit der Außenseite des Kopfteils abschließt oder insgesamt über diese vorsteht.In the inserted state, the button knob 10 projects with its preferably curved surface 22 over the outside the head part 4, as can be seen from Fig. 1, so that the bristle insert 5 by a relatively light Pressure on the curved outer surface 22 of the push button 10 can be solved. Nevertheless, the bristle insert is 5 in the inserted state by the between the surfaces 20 and 21 occurring wedge or clamping action safely in Headboard 4 held. Instead, the pusher button also be designed so that it is flush with the outside of the head part or overall over this protrudes.

    Vorzugsweise sind die Abmessungen des Borsteneinsatzes 5 und des Kopfteils 4 so gewählt, daß sich der Borsteneinsatz 5 mit seinem Drückerknopf 10 am griffseitigen Ende 11a der Öffnung 11 der Rückwand 12 abstützt, so daß der Borsteneinsatz 5 von dort her in den Keil-Klemmsitz zwischen den Flächen 20 und 21 gedrückt wird. Die hierfür erforderliche Längsverschiebung des Borsteneinsatzes 5 beeinträchtigt die Rastwirkung zwischen den Rastleisten 16, 18 und den jeweils zugeordneten Rastnuten 17 bzw. 19 nicht. Wie man aus Fig. 4 erkennt, weist der Borsteneinsatz 5 im Grundriß vorzugsweise einen halbkreisförmigen Abschnitt mit größerem Radius an seinem griffseitigen Ende 8 auf. Von diesem Abschnitt verlaufen im wesentlichen geradlinige Umfangsabschnitte konvergierend zu einem halbkreisförmigem Abschnitt mit kleinerem Radius am entgegengesetzten Ende 9. Abweichend hiervon kann auch eine andere, sich zum einen Ende hin verjüngende Grundrißform gewählt werden.The dimensions of the bristle insert 5 are preferred and the head part 4 chosen so that the bristle insert 5 with its push button 10 at the handle-side end 11a the opening 11 of the rear wall 12 is supported so that the Bristle insert 5 from there into the wedge clamp seat between the surfaces 20 and 21 is pressed. The one for this required longitudinal displacement of the bristle insert 5 affects the locking effect between the locking strips 16, 18 and the respectively assigned locking grooves 17 and 19 Not. As can be seen from Fig. 4, the Bristle insert 5 in plan preferably one semicircular section with a larger radius at its handle end 8 on. Run from this section essentially rectilinear circumferential sections converging to a semicircular section with smaller radius at the opposite end 9. Deviating another of these can go towards one end tapered floor plan can be selected.

    Der Borsteneinsatz 5 ist so in die Halteaussparung 7 des Kopfteils eingepaßt, daß das Ende 8 formschlüssig und spielfrei am griffseitigen Ende der Innenwand 14 anliegt. Das Einsetzen erfolgt in der Weise, daß zuerst die stirnseitige Rastleiste 18 in die Rastnut 19 eingreift; sodann wird das Ende 8 in die Halteaussparung 7 eingeschwenkt.The bristle insert 5 is in the holding recess 7 of the Headboard fitted that the end 8 form-fitting and is free of play at the handle-side end of the inner wall 14. The insertion takes place in such a way that the front locking bar 18 engages in the locking groove 19; then the end 8 is in the holding recess 7 swung in.

    Claims (4)

    1. Toothbrush with a replaceable brush insert (5) that snaps into an oblong holding recess (7) in a head piece (4) connected to a handle (3) and a grip (2) and with a push button (10) connected to the brush insert (5), said push button protruding through a hole (11) in the rear wall (12) of the holding recess (7), close to the grip end of the holding recess (7) and on both sides of the push button (10) and at the front end of the brush insert (5) away from the push button (10) and around its circumferential surface (13) locking strips (16, 18) project, which engage in snap-in grooves (17, 19) on the inner wall (14) of the holding recess (7), which are only located in the area of the locking strips (16, 18) in the inner wall (14) of the holding recess (7), characterised in that the brush insert (5) tapers over most of its length towards the end (9) facing away from the push button (10) and the tapering part of the smooth, continuous sections (20) of its circumferential surface fits tightly against smooth, continuous sections (21) of the inner wall (14) of the holding recess (7).
    2. Toothbrush according to Claim 1, characterised in that the circumferential surface (13) of the brush insert (5) and the inner wall (14) of the holding recess (7), essentially run perpendicularly to the brush side of the base surface (15) of the brush insert (5).
    3. Toothbrush according to Claim 1, characterised in that the brush insert (5) and push button (10) are supported at the grip end (11a) of the hole (11) in the rear wall (12).
    4. Toothbrush according to Claim 1, characterised in that the brush insert (5) has a semi-circular outline with a larger radius at its grip end (8) from which essentially straight circumferential sections converge to form a semi-circular section with a smaller radius at the opposite end (9).
    EP95109184A 1994-09-28 1995-06-14 Toothbrush Expired - Lifetime EP0704179B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE4434617 1994-09-28
    DE4434617A DE4434617A1 (en) 1994-09-28 1994-09-28 toothbrush

    Publications (2)

    Publication Number Publication Date
    EP0704179A1 EP0704179A1 (en) 1996-04-03
    EP0704179B1 true EP0704179B1 (en) 1998-09-16

    Family

    ID=6529385

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95109184A Expired - Lifetime EP0704179B1 (en) 1994-09-28 1995-06-14 Toothbrush

    Country Status (5)

    Country Link
    US (1) US5555590A (en)
    EP (1) EP0704179B1 (en)
    CA (1) CA2159289A1 (en)
    DE (2) DE4434617A1 (en)
    ES (1) ES2123860T3 (en)

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    US8448287B2 (en) 2010-10-22 2013-05-28 Mcneil-Ppc, Inc. Replaceable toothbrush head
    USRE44819E1 (en) 2000-03-16 2014-04-01 Procter & Gamble Business Services Canada Company Toothbrush
    US8806695B2 (en) 2002-08-09 2014-08-19 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions

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    US6436094B1 (en) 2000-03-16 2002-08-20 Laserscope, Inc. Electromagnetic and laser treatment and cooling device
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    EP1374758B1 (en) * 2002-06-27 2004-03-10 SIS AG Surgical Instrument Systems Device for detecting measurement data of an eye
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    Publication number Priority date Publication date Assignee Title
    USRE44819E1 (en) 2000-03-16 2014-04-01 Procter & Gamble Business Services Canada Company Toothbrush
    US8806695B2 (en) 2002-08-09 2014-08-19 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
    US9167888B2 (en) 2002-08-09 2015-10-27 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
    US8448287B2 (en) 2010-10-22 2013-05-28 Mcneil-Ppc, Inc. Replaceable toothbrush head

    Also Published As

    Publication number Publication date
    CA2159289A1 (en) 1996-03-29
    US5555590A (en) 1996-09-17
    ES2123860T3 (en) 1999-01-16
    DE59503597D1 (en) 1998-10-22
    DE4434617A1 (en) 1996-04-04
    EP0704179A1 (en) 1996-04-03

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