EP0830075A1 - Resilient toothbrush - Google Patents

Resilient toothbrush

Info

Publication number
EP0830075A1
EP0830075A1 EP96919603A EP96919603A EP0830075A1 EP 0830075 A1 EP0830075 A1 EP 0830075A1 EP 96919603 A EP96919603 A EP 96919603A EP 96919603 A EP96919603 A EP 96919603A EP 0830075 A1 EP0830075 A1 EP 0830075A1
Authority
EP
European Patent Office
Prior art keywords
handle
bristle
connection
toothbrush
joints
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.)
Granted
Application number
EP96919603A
Other languages
German (de)
French (fr)
Other versions
EP0830075B1 (en
Inventor
Uwe Heuler
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0830075A1 publication Critical patent/EP0830075A1/en
Application granted granted Critical
Publication of EP0830075B1 publication Critical patent/EP0830075B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
    • A46B5/0066—Flexible resilience by elastic deformation of the material
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the invention relates to a toothbrush with a bristle carrier equipped with bristle bundles on one side, with a handle and with a resilient connection between the handle and
  • Bristle holder which, when pressure is exerted on the surface formed by the free ends of the bristle bundles, enables the bristle holder to deflect relative to the handle.
  • the toothbrush is still the most essential and most reliable tool for essential dental hygiene.
  • the bristles When cleaning the teeth with a brush, however, the bristles always exert pressure on the teeth and thus inevitably also on the gums. This pressure is very difficult to meter due to human feeling and the hand, so that on the one hand sufficient cleaning of the teeth and their spaces is achieved, but on the other hand the gums are not injured by excessive pressure.
  • toothbrushes with a resilient brush head do not provide a remedy here, since they are designed so that the brush head yields when pressure is exerted, but the bristle surface is inclined away from the handle. This means that when pressure is exerted on the bristle head, the end-side bristles are inclined away from the cleaning surface, but the bristles on the handle side now exert an undiminished equal pressure on a substantially smaller brush surface.
  • These toothbrushes are therefore not to be regarded as an improvement, but rather to be assessed disadvantageously, since the risk of injury to the Gums are not reduced, but are even enlarged by the smaller effective area of the bristle tips.
  • EP 0 339 350 A1 describes a toothbrush whose brush head can be moved by a two-part handle, consisting of an upper part and a lower part, in such a way that the surface of the brush head can assume different angles to the handle.
  • the disadvantage of this brush is that the inclination must be adjusted by hand and it can therefore not be avoided that either the bristles close to the handle or the brush tip are pressed more on the teeth and therefore there is no even pressure distribution over the entire Bristle surface there. Furthermore, to change the angle of inclination, a considerable effort of the hand is required, which cannot be controlled and metered for the desired purpose.
  • the object of the invention is therefore the construction of a toothbrush, which has a resilient bristle head, such that when the brush head is deflected, the surface formed by the free bristle ends of the bristle bundles is not inclined away from the handle, but maintains the parallel alignment with the handle or against the handle tends to ensure that the full cleaning effect of the entire bristle surface is always used and that there are no pressure peaks against the gums.
  • connection is formed by a quadrilateral joint, the axes of rotation of which extend transversely to the longitudinal extent of the handle and the bristles, and in that the distance between the two joints facing the bristle holder is less than or equal to the distance between the two joints facing the handle is.
  • Fig. 1 a preferred form of toothbrush in Side view with a two-pronged connection between the handle and the brush head.
  • Fig. 2 shows a preferred form of the toothbrush in supervision, in which a three-pronged connection is present between the handle and the brush head.
  • FIG. 3 shows a sectional view of the toothbrush according to FIG. 2 along the section line A-B in a side view.
  • FIG. 4 shows a sectional view of the toothbrush according to FIG. 2 along the section line C-D in a side view.
  • FIG. 5 describes the mode of operation of a toothbrush according to FIG. 1 with two struts which are arranged parallel to one another.
  • FIG. 6 describes the mode of operation of a toothbrush according to FIG. 1 with two struts which are arranged in a trapezoidal manner, i. H. on the handle part have a greater distance from each other than on the brush head.
  • the invention relates to a toothbrush with a bristle carrier (1) which is resiliently connected to the handle (9) and has bristle bundles (10) arranged therein on one side and which can be moved in this way by exerting pressure on the surface of the bristle bundle (10) is that the bristle surface always runs parallel to the handle (9) or is inclined against it.
  • connection points of the struts (4, 5) with the handle (9) or the bristle holder (1) Have the function of joints (2, 3, 6, 7).
  • Tension struts (4) and push struts (5) are preferably tapered at these points to increase the resilient articulation.
  • a spring effect can also be achieved by using a more elastic material in the area of the connection points.
  • the toothbrush according to FIG. 1 has a tension strut (4) and a push strut (5), in which the respective distances between the joints (2) and (3) and (6) and (7) are the same.

Abstract

The invention concerns a toothbrush comprising a handle (9) and a brush head (1), which is equipped on one side with clusters of bristles (10), a resilient connection being provided between the handle (9) and brush head (1). When pressure is exerted on the surface formed by the free ends of the clusters of bristles (10), the connection allows the brush head (1) to be deflected relative to the handle (9). This is achieved in that the connection is formed by a hinged rectangle (2; 3; 6; 7) whose axes of rotation extend transversely to the longitudinal extension of the handle (9) and the bristles (10), and in that the distance between the two hinges (2; 3) closest to the brush head (1) is less than or equal to the distance between the two hinges (6; 7) closest to the handle (9).

Description

Federnde Zahnbürste Spring toothbrush
Beschreibungdescription
Die Erfindung betrifft eine Zahnbürste mit einem einseitig mit Borstenbündeln bestückten Borstenträger, mit einem Handgriff und mit einer federnden Verbindung zwischen Handgriff undThe invention relates to a toothbrush with a bristle carrier equipped with bristle bundles on one side, with a handle and with a resilient connection between the handle and
Borstenträger, die bei Ausübung von Druck auf die durch die freien Enden der Borstenbündel gebildete Oberfläche ein Auslenken des Borstenträgers gegenüber dem Handgriff ermöglicht.Bristle holder which, when pressure is exerted on the surface formed by the free ends of the bristle bundles, enables the bristle holder to deflect relative to the handle.
Die Zahnbürste ist immer noch das wesentliche und zuverlässigste Hilfsmittel für eine unerläßlich notwendige Zahnhygiene. Bei einer Reinigung der Zähne mittels einer Bürste wird jedoch mit den Borsten immer Druck auf die Zähne und damit unvermeidbar auch auf das Zahnfleisch ausgeübt. Dieser Druck ist durch das menschliche Gefühl und die Hand nur sehr schwer so zu dosieren, daß einerseits eine ausreichende Reinigung der Zähne und deren Zwischenräume bewirkt wird, andererseits aber durch zu hohen Druck das Zahnfleisch nicht verletzt wird.The toothbrush is still the most essential and most reliable tool for essential dental hygiene. When cleaning the teeth with a brush, however, the bristles always exert pressure on the teeth and thus inevitably also on the gums. This pressure is very difficult to meter due to human feeling and the hand, so that on the one hand sufficient cleaning of the teeth and their spaces is achieved, but on the other hand the gums are not injured by excessive pressure.
Im Handel verfügbare Zahnbürsten mit federndem Bürstenkopf und wie z. B. in EP 0 371 293 A2 beschrieben, schaffen hier keine Abhilfe, da sie so konstruiert sind, daß der Bürstenkopf zwar bei ausgeübtem Druck nachgibt, hierbei jedoch die Borstenfläche vom Handgriff hinweg geneigt wird. Das heißt, bei Druckausübung auf den Borstenkopf werden zwar die endseitigen Borsten von der Putzfläche weg geneigt, über die griffseitigen Borsten wird jedoch nun auf einer wesentlich kleineren Bürstenfläche ein unvermindert gleicher Druck ausgeübt. Diese Zahnbürsten sind daher nicht als Verbesserung zu betrachten sondern eher nachteilig zu beurteilen, da die Verletzungsgefahr des Zahnfleisches nicht vermindert wird, sondern durch kleinere Wirkfläche der Borstenspitzen sogar vergrößert wird.Commercially available toothbrushes with a resilient brush head and such. B. described in EP 0 371 293 A2, do not provide a remedy here, since they are designed so that the brush head yields when pressure is exerted, but the bristle surface is inclined away from the handle. This means that when pressure is exerted on the bristle head, the end-side bristles are inclined away from the cleaning surface, but the bristles on the handle side now exert an undiminished equal pressure on a substantially smaller brush surface. These toothbrushes are therefore not to be regarded as an improvement, but rather to be assessed disadvantageously, since the risk of injury to the Gums are not reduced, but are even enlarged by the smaller effective area of the bristle tips.
In der EP 0 339 350 AI ist eine Zahnbürste beschrieben, deren Bürstenkopf durch einen zweiteiligen Handgriff, bestehend aus einem Oberteil und einem Unterteil, so bewegbar ist, daß die Oberfläche des Bürstenkopfes unterschiedliche Winkel zum Handgriff einnehmen kann. Der Nachteil dieser Bürste besteht darin, daß die Neigung von Hand justiert werden muß und es sich daher nicht vermeiden läßt, daß entweder doch die dem Handgriff nahestehenden Borsten oder die der Bürstenspitze mehr auf die Zähne gedrückt werden und es daher keine gleichmäßige Druckverteilung über die gesamte Borstenoberfläche gibt. Weiterhin ist zur Veränderung des Neigungswinkels ein erheblicher Kraftaufwand der Hand erforderlich, der nicht für den gewünschten Zweck kontrollierbar und dosierbar ist.EP 0 339 350 A1 describes a toothbrush whose brush head can be moved by a two-part handle, consisting of an upper part and a lower part, in such a way that the surface of the brush head can assume different angles to the handle. The disadvantage of this brush is that the inclination must be adjusted by hand and it can therefore not be avoided that either the bristles close to the handle or the brush tip are pressed more on the teeth and therefore there is no even pressure distribution over the entire Bristle surface there. Furthermore, to change the angle of inclination, a considerable effort of the hand is required, which cannot be controlled and metered for the desired purpose.
Aufgabe der Erfindung ist daher die Konstruktion einer Zahnbürste, die einen federnden Borstenkopf besitzt, dergestalt daß beim Auslenken des Bürstenkopfes die durch die freien Borstenenden der Borstenbündel gebildete Oberfläche nicht vom Handgriff weg geneigt wird, sondern die parallele Ausrichtung zum Handgriff beibehält oder sich gegen den Handgriff neigt, damit immer gewährleistet ist, daß die volle Reinigungswirkung der gesamten Borstenoberfläche zum Einsatz kommt und keine Druckspitzen gegenüber dem Zahnfleisch auftreten.The object of the invention is therefore the construction of a toothbrush, which has a resilient bristle head, such that when the brush head is deflected, the surface formed by the free bristle ends of the bristle bundles is not inclined away from the handle, but maintains the parallel alignment with the handle or against the handle tends to ensure that the full cleaning effect of the entire bristle surface is always used and that there are no pressure peaks against the gums.
Die Aufgabe wird dadurch gelöst, daß die Verbindung durch ein Gelenkviereck gebildet ist, dessen Drehachsen quer zur Längserstreckung des Handgriffs und der Borsten verlaufen, und daß der Abstand der beiden dem Borstenträger zugewandten Gelenke voneinander kleiner oder gleich dem Abstand der beiden dem Handgriff zugewandten Gelenke voneinander ist.The object is achieved in that the connection is formed by a quadrilateral joint, the axes of rotation of which extend transversely to the longitudinal extent of the handle and the bristles, and in that the distance between the two joints facing the bristle holder is less than or equal to the distance between the two joints facing the handle is.
Die erfindungsge äße Konstruktion der Zahnbürste wird in den Abbildungen beispielhaft veranschaulicht. Die Abbildungen zeigen im einzelnen:The inventive design of the toothbrush is exemplified in the figures. The pictures show in detail:
Fig. 1, eine bevorzugte Form der Zahnbürste in Seitenansicht, bei der zwischen Handgriff und Bürstenkopf eine zweistrebige Verbindung vorhanden ist.Fig. 1, a preferred form of toothbrush in Side view with a two-pronged connection between the handle and the brush head.
Fig. 2 zeigt eine bevorzugte Form der Zahnbürste in Aufsicht, bei der zwischen Handgriff und Bürstenkopf eine dreistrebige Verbindung vorhanden ist.Fig. 2 shows a preferred form of the toothbrush in supervision, in which a three-pronged connection is present between the handle and the brush head.
Fig. 3 zeigt ein Schnittbild der Zahnbürste gemäß Fig. 2 entlang der Schnittline A-B in Seitenansicht.FIG. 3 shows a sectional view of the toothbrush according to FIG. 2 along the section line A-B in a side view.
Fig. 4 zeigt ein Schnittbild der Zahnbürste gemäß Fig. 2 entlang der Schnittline C-D in Seitenansicht.FIG. 4 shows a sectional view of the toothbrush according to FIG. 2 along the section line C-D in a side view.
Fig. 5 beschreibt die Funktionsweise einer Zahnbürste gemäß Fig. 1 mit zwei Streben, die parallel zueinander angeordnet sind.FIG. 5 describes the mode of operation of a toothbrush according to FIG. 1 with two struts which are arranged parallel to one another.
Fig. 6 beschreibt die Funktionsweise einer Zahnbürste gemäß Fig. 1 mit zwei Streben, die trapezförmig zueinander angeordnet sind, d. h. am Griffteil einen größeren Abstand voneinander haben als am Bürstenkopf.FIG. 6 describes the mode of operation of a toothbrush according to FIG. 1 with two struts which are arranged in a trapezoidal manner, i. H. on the handle part have a greater distance from each other than on the brush head.
Die in den Abbildungen gegebenen Bezugszeichen haben folgende Bedeutung:The reference symbols given in the figures have the following meaning:
1 Borstenträger1 bristle holder
2 Gelenk2 joint
3 Gelenk3 joint
4 Zugstrebe4 tension strut
5 Schubstrebe5 push strut
6 Gelenk6 joint
7 Gelenk7 joint
8 Schlitz8 slot
9 Handgriff9 handle
10 Borsten10 bristles
Die Erfindung betrifft eine Zahnbürste mit einem federnd mit dem Handgriff (9) verbundenen Borstenträger (1) mit einseitig darin angeordneten Borstenbundeln (10) , der durch Ausübung von Druck auf die Oberfläche der Borstenbundel (10) derart bewegbar ist, daß die Borstenoberflache stets parallel zum Handgriff (9) verläuft oder gegen diesen geneigt ist.The invention relates to a toothbrush with a bristle carrier (1) which is resiliently connected to the handle (9) and has bristle bundles (10) arranged therein on one side and which can be moved in this way by exerting pressure on the surface of the bristle bundle (10) is that the bristle surface always runs parallel to the handle (9) or is inclined against it.
Dieses wird erreicht durch eine mehrstrebige, bevorzugt 2- oder 3-strebige Verbindung zwischen Handgriff (9) und Borstenträger (1), wobei die Verbindungsstellen der Streben (4, 5) mit dem Handgriff (9) bzw. dem Borstenträger (1) die Funktion von Gelenken (2, 3, 6, 7) haben. Bevorzugt werden Zugstreben (4) und Schubstreben (5) an diesen Punkten verjüngt zur Erhöhung der federnden Gelenkwirkung. Eine Federwirkung kann aber auch durch die Verwendung eines elastischeren Werkstoffs im Bereich der Verbindungspunkte erzielt werden.This is achieved by a multi-braced, preferably 2- or 3-braced connection between the handle (9) and bristle holder (1), the connection points of the struts (4, 5) with the handle (9) or the bristle holder (1) Have the function of joints (2, 3, 6, 7). Tension struts (4) and push struts (5) are preferably tapered at these points to increase the resilient articulation. A spring effect can also be achieved by using a more elastic material in the area of the connection points.
In bevorzugter Ausführungsform hat die Zahnbürste gemäß Fig. 1 eine Zugstrebe (4) und eine Schubstrebe (5) , bei der die jeweiligen Abstände zwischen den Gelenken (2) und (3) sowie (6) und (7) gleich sind. Bei Ausübung von Druck auf dieIn a preferred embodiment, the toothbrush according to FIG. 1 has a tension strut (4) and a push strut (5), in which the respective distances between the joints (2) and (3) and (6) and (7) are the same. When applying pressure on the
Borstenbündel (10) wird die Borstenflache parallel zum Handgriff (9) verschoben, wie in Fig. 5 dargestellt.Bristle bundle (10) the bristle surface is moved parallel to the handle (9), as shown in Fig. 5.
Wird die erfindungsgemäße Zahnbürste gemäß Fig. 1 derart gestaltet, daß der Handgriff (9) gegenüber dem Borstenträger (1) dicker ausgeführt ist, dann ist der Abstand zwischen den1 designed such that the handle (9) is thicker than the bristle holder (1), then the distance between the
Gelenken (6) und (7) größer als derjenige zwischen (2) und (3) . Druck auf die Borstenfläche führt dann zu einer federnden Bewegung derart, daß die Borstenfläche gegen den Handgriff (9) geneigt wird, wie in Fig. 6 schematisch dargestellt ist. Joints (6) and (7) larger than those between (2) and (3). Pressure on the bristle surface then leads to a resilient movement such that the bristle surface is inclined against the handle (9), as is shown schematically in FIG. 6.

Claims

Patentansprüche claims
1. Zahnbürste mit einem einseitig mit Borstenbündeln (10) bestückten Borstenträger (1) , mit einem Handgriff (9) und mit einer federnden Verbindung zwischen Handgriff (9) und Borstenträger (1) , die bei Ausübung von Druck auf die durch die freien Enden der Borstenbündel (10) gebildete Oberfläche ein Auslenken des Borstenträgers (1) gegenüber dem Handgriff (9) ermöglicht, dadurch gekennzeichnet, daß die Verbindung durch ein Gelenkviereck (2; 3; 6; 7) gebildet ist, dessen Drehachsen quer zur Längserstreckung des Handgriffs (9) und der Borsten (10) verlaufen, und daß der Abstand der beiden dem Borstenträger (1) zugewandten Gelenke (2; 3) voneinander kleiner oder gleich dem Abstand der beiden dem Handgriff (9) zugewandten Gelenke (6; 7) voneinander ist.1. Toothbrush with a bristle bundle (1) equipped with bristle bundles (10) on one side, with a handle (9) and with a resilient connection between the handle (9) and bristle carrier (1), which when pressure is exerted on by the free ends the bristle bundle (10) formed surface allows the bristle carrier (1) to deflect relative to the handle (9), characterized in that the connection is formed by a four-bar linkage (2; 3; 6; 7) whose axes of rotation are transverse to the longitudinal extension of the handle (9) and the bristles (10), and that the distance between the two joints (2; 3) facing the bristle holder (1) is less than or equal to the distance between the two joints (6; 7) facing the handle (9) is.
2. Zahnbürste gemäß Anspruch 1, dadurch gekennzeichnet, daß die durch ein Gelenkviereck (2; 3; 6; 7) gebildete Verbindung zwischen Handgriff (9) und Borstenträger (1) mehrstrebig ist.2. Toothbrush according to claim 1, characterized in that the connection formed by a four-bar linkage (2; 3; 6; 7) between the handle (9) and bristle holder (1) is multi-braced.
3. Zahnbürste gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß die durch ein Gelenkviereck (2; 3; 6; 7) gebildete Verbindung zwischen Handgriff (9) und Borstenträger (1) zweistrebig ist.3. Toothbrush according to claim 1 or 2, characterized in that the connection formed by a four-bar linkage (2; 3; 6; 7) between the handle (9) and bristle carrier (1) is two-pronged.
4. Zahnbürste gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß die durch ein Gelenkviereck (2; 3; 6; 7) gebildete Verbindung zwischen Handgriff (9) und Borstenträger (1) dreistrebig ist.4. Toothbrush according to claim 1 or 2, characterized in that the connection between the handle (9) and bristle carrier (1) formed by a quadrilateral joint (2; 3; 6; 7) is three-braced.
5. Zahnbürste gemäß Anspruch 1 bis 4, dadurch gekennzeichnet, daß die Federwirkung durch Verjüngung der Streben (4, 5) an den Gelenken (2; 3; 6; 7) bewirkt wird. 5. Toothbrush according to claim 1 to 4, characterized in that the spring action is effected by tapering the struts (4, 5) on the joints (2; 3; 6; 7).
6. Zahnbürste gemäß Anspruch 1 bis 4, dadurch gekennzeichnet, daß die Federwirkung durch Verwendung flexibleren Werkstoffs an den Gelenken (2; 3; 6; 7) bewirkt wird. 6. Toothbrush according to claim 1 to 4, characterized in that the spring action is effected by using more flexible material on the joints (2; 3; 6; 7).
EP96919603A 1995-05-30 1996-05-29 Resilient toothbrush Expired - Lifetime EP0830075B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19519674 1995-05-30
DE19519674A DE19519674C1 (en) 1995-05-30 1995-05-30 Toothbrush with handle and bristle tuft holder
PCT/DE1996/000937 WO1996038067A1 (en) 1995-05-30 1996-05-29 Resilient toothbrush

Publications (2)

Publication Number Publication Date
EP0830075A1 true EP0830075A1 (en) 1998-03-25
EP0830075B1 EP0830075B1 (en) 1999-09-08

Family

ID=7763145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96919603A Expired - Lifetime EP0830075B1 (en) 1995-05-30 1996-05-29 Resilient toothbrush

Country Status (5)

Country Link
US (1) US5987690A (en)
EP (1) EP0830075B1 (en)
AU (1) AU5810996A (en)
DE (2) DE19519674C1 (en)
WO (1) WO1996038067A1 (en)

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Also Published As

Publication number Publication date
EP0830075B1 (en) 1999-09-08
DE59603013D1 (en) 1999-10-14
US5987690A (en) 1999-11-23
DE19519674C1 (en) 1996-07-25
WO1996038067A1 (en) 1996-12-05
AU5810996A (en) 1996-12-18

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