EP2482691B1 - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
EP2482691B1
EP2482691B1 EP10795906.6A EP10795906A EP2482691B1 EP 2482691 B1 EP2482691 B1 EP 2482691B1 EP 10795906 A EP10795906 A EP 10795906A EP 2482691 B1 EP2482691 B1 EP 2482691B1
Authority
EP
European Patent Office
Prior art keywords
brush
flexurally rigid
brush according
articulation
channel
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.)
Not-in-force
Application number
EP10795906.6A
Other languages
German (de)
French (fr)
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EP2482691A2 (en
Inventor
René HABINGER
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Individual
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Individual
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Publication date
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Publication of EP2482691A2 publication Critical patent/EP2482691A2/en
Application granted granted Critical
Publication of EP2482691B1 publication Critical patent/EP2482691B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • 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
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0041—Flexible or deformable reservoirs, e.g. resilient bulbs, compressible tubes
    • 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 brush, in particular toothbrush, with the features of the preamble of claim 1.
  • Such a toothbrush is from the EP 0 933 044 A2 known.
  • a disadvantage of this toothbrush is that it consists of relatively many parts and therefore is expensive to manufacture.
  • the invention is therefore based on the object to provide such a toothbrush, which consists of a few parts and therefore is easier and cheaper to produce. This object is achieved with a brush having the features of claim 1.
  • a preferred embodiment of the invention is characterized in that the storage space on the side opposite the upper part is limited by a bottom part movable only towards the upper part and that the channel is always open from the storage space to the brush head and that in the channel a cross-sectional constriction is provided, which generates a flow resistance which is greater than the movement resistance of the bottom part in the direction of the brush head. In this way, the back flow of the agent is inhibited in the pantry.
  • the pumping process is, as in itself from the EP 0 933 044 A2 is known, carried out by pivoting the upper part relative to the lower part, by the pivoting of the upper part relative to the lower part of the storage space is reduced in the region of the elastic wall portion, so that the agent is pressed through the channel to the brush head.
  • the channel only has to have such a narrow channel at least in sections that, given the viscosity of the agent used, sufficient flow resistance is present prevents excessive back flow of the agent when after a pumping operation, the upper part is raised or stretched relative to the lower part again.
  • a volume compensation must be created by suitable measures, for example by the fact that the storage space is limited on the side opposite the upper part of a bottom part movable only towards the upper part, otherwise the agent would be sucked back out of the canal.
  • the upper part and the lower part have rigid wall sections, which are connected to one another via the joint and between which the elastic wall section is arranged.
  • the rigid wall sections and the hinge are formed from a one-piece part. They can therefore be produced in a single injection process, wherein the joint can be carried out in a known per se, for example as a film hinge.
  • the channel is bounded directly by the rigid wall sections and the elastic wall section. That is, there are no further protective or separating layers between the rigid wall sections and the elastic wall section, which further simplifies the production.
  • the lower part and the upper part can be formed with their rigid portions of one-piece parts and limit the reservoir or the channel.
  • the entire brush apart from the movable bottom part and the bristles on the brush head, can be made in a simple embodiment of a single part, on which only the elastic wall portion must be attached, which can be done by a second injection process in a simple manner.
  • the width of the joint is among other things of the diameters of the upper part and the lower part and their length and, of course, also dependent on the desired stability of the joint against lateral kinking. Preferred in the invention, when the width of the joint is between 1/6 and 1/2, preferably about 1/3, of the diameter of the lower part and / or if the width of the joint between 1/5 and 2/3, preferably about 1/2, the diameter of the shell is. These dimensions ensure in the usual dimensions of such brushes sufficient stability of the joint and functionality of the brush.
  • the brush according to the invention has an upper part 1 and a lower part 2, which are connected to each other via a hinge 3 on.
  • the upper part 1 and the lower part 2 are made of a hard and rigid material, such as polypropylene, and preferably made in one piece with the hinge 3, which may be in the form of a film hinge.
  • a brush head 4 with bristles 5 At the upper end of the upper part 1 is a brush head 4 with bristles 5, the number and length of each desired application depends.
  • the lower part 2 is cylindrical and encloses a storage space 6 which is delimited on the side opposite the upper part 1 by a bottom part or piston 7.
  • the bottom part 7 is ideally a sliding on the inner surface 8 of the wall of the lower part 2, which is movable for example by suitably shaped ribs on the inner surface 8 and / or claws 9 or the like only in the direction of arrow 10 to the upper part 1, whereas a movement in the other direction is prevented by the ribs and / or claws 9.
  • the upper part 1 delimits a brush head 4 towards narrowing channel 11, which extends from the storage space 6 to the brush head 4 and at the end 18 has its smallest cross-section.
  • an extension in the form of an elastic tube 12 can be arranged at the end of the channel 11, on the one hand, in order to adjust the flow resistance in addition to the channel 11 in addition, on the other hand, in order to promote the agent further towards the end of the bristles 5 can.
  • the tube can also perform a similar function as a valve if it is elastic enough to fold together.
  • an elastic wall portion 13 is arranged in the region of the joint 3, on the one hand to the edges 14, 15 of the rigid wall sections 16 and 17 of the upper part 1 and the lower part 2 and on the other hand to the joint 13 connects.
  • the elastic wall section 13, which consists for example of a thermoplastic elastomer, can be injection-molded directly onto the wall sections 16 and 17 by means of a per se known injection molding method and thus be permanently connected thereto.
  • the upper part 1 is bent relative to the lower part 2, as in Fig. 5 and 6 is shown.
  • the upper part 1 buckles at the joint 3 with respect to the lower part 2 and a part of the elastic wall portion 13 and to a certain extent also the bending-resistant portion 16 adjoining the edge 14 are pressed slightly into the storage space 6. Since the bottom part 7 can not escape downwards, the agent is forced through the channel 11 and the tube 12 to and between the bristles 5.
  • the upper part 1 is released, it is moved back into its starting position by the elastic wall section 13, with the elastic wall section 13 simultaneously moving outwards again and thus increasing the volume in the storage space 6.
  • the flow resistance in channel 11, in the illustrated embodiment primarily the flow resistance in the region of the brush head 4, is so great that the agent is not sucked back through the channel 11. Rather, the flow resistance and the movement resistance of the bottom part 7 are set to one another such that the bottom part 7 is sucked a small distance in the direction of the arrow 10.
  • the flow resistance of the channel 11 is determined primarily by the flow cross-section in the region of the brush head 4. It is of course possible, alternatively or additionally at other locations of the channel 11, to take measures, e.g. a valve, which influence the flow resistance in channel 11.
  • the channel 11 can be filled by pressing on the bottom part 7 until the backflow resistance in the channel 11 is so large that not the agent sucked back from the channel 11 but the bottom part 7 is sucked in the direction of the arrow.

Landscapes

  • Brushes (AREA)

Description

Die Erfindung betrifft eine BĂ¼rste, insbesondere ZahnbĂ¼rste, mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a brush, in particular toothbrush, with the features of the preamble of claim 1.

Eine derartige ZahnbĂ¼rste ist aus der EP 0 933 044 A2 bekannt. Nachteilig bei dieser ZahnbĂ¼rste ist, dass sie aus relativ vielen Teilen besteht und daher in der Herstellung teuer ist. Der Erfindung liegt daher die Aufgabe zu Grunde, eine derartige ZahnbĂ¼rste zu schaffen, welche aus wenigen Teilen besteht und daher einfacher und gĂ¼nstiger herzustellen ist.
Gelöst wird diese Aufgabe mit einer BĂ¼rste mit den Merkmalen des Anspruchs 1.Such a toothbrush is from the EP 0 933 044 A2 known. A disadvantage of this toothbrush is that it consists of relatively many parts and therefore is expensive to manufacture. The invention is therefore based on the object to provide such a toothbrush, which consists of a few parts and therefore is easier and cheaper to produce.
This object is achieved with a brush having the features of claim 1.

Eine bevorzugte AusfĂ¼hrungsform der Erfindung ist dadurch gekennzeichnet, dass der Vorratsraum auf der dem Oberteil gegenĂ¼ber liegenden Seite von einem nur in Richtung zum Oberteil hin beweglichen Bodenteil begrenzt wird und dass der Kanal vom Vorratsraum bis zum BĂ¼rstenkopf durchgehend immer offen ist und dass im Kanal eine Querschnittsverengung vorgesehen ist, welche einen Strömungswiderstand erzeugt, der grĂ¶ĂŸer als der Bewegungswiderstand des Bodenteils In Richtung zum BĂ¼rstenkopf ist. Auf diese Weise wird das zurĂ¼ck Strömen des Mittels in den Vorratsraum behindert.A preferred embodiment of the invention is characterized in that the storage space on the side opposite the upper part is limited by a bottom part movable only towards the upper part and that the channel is always open from the storage space to the brush head and that in the channel a cross-sectional constriction is provided, which generates a flow resistance which is greater than the movement resistance of the bottom part in the direction of the brush head. In this way, the back flow of the agent is inhibited in the pantry.

Der Pumpvorgang wird, wie dies an sich aus der EP 0 933 044 A2 bekannt ist, durch Verschwenken des Oberteils gegenĂ¼ber dem Unterteil durchgefĂ¼hrt, Durch das Verschwenken des Oberteils gegenĂ¼ber dem Unterteil wird der Vorratsraum im Bereich des elastischen Wandabschnitts verkleinert, so dass das Mittel durch den Kanal zum BĂ¼rstenkopf hin gedrĂ¼ckt wird.The pumping process is, as in itself from the EP 0 933 044 A2 is known, carried out by pivoting the upper part relative to the lower part, by the pivoting of the upper part relative to the lower part of the storage space is reduced in the region of the elastic wall portion, so that the agent is pressed through the channel to the brush head.

Es hat sich herausgestellt, dass bei einer geeigneten Dimensionierung des Kanals, der den Vorratsraum mit dem BĂ¼rstenkopf verbindet, auf Ventile oder dergleichen Einbauten gänzlich verzichtet werden kann. Der Kanal muss nur zumindest abschnittsweise einen so engen Kanal aufweisen, dass bei gegebener Viskosität des verwendeten Mittels ein ausreichender Strömungswiderstand vorhanden ist, der ein Ă¼bermĂ¤ĂŸiges zurĂ¼ck Strömen des Mittels verhindert, wenn nach einem Pumpvorgang der Oberteil gegenĂ¼ber dem Unterteil wieder aufgerichtet bzw. gestreckt wird.It has been found that with a suitable dimensioning of the channel, which connects the storage space with the brush head, can be dispensed with valves or the like internals altogether. The channel only has to have such a narrow channel at least in sections that, given the viscosity of the agent used, sufficient flow resistance is present prevents excessive back flow of the agent when after a pumping operation, the upper part is raised or stretched relative to the lower part again.

Alternativ ist es auch möglich, im Oberteil ein Ventil einzubauen.Alternatively, it is also possible to install a valve in the upper part.

Da sich das Volumen des Vorratsraums beim Aufrichten des Oberteils wieder vergrĂ¶ĂŸern wĂ¼rde, muss durch geeignete MaĂŸnahmen, beispielsweise dadurch, dass der Vorratsraum auf der dem Oberteil gegenĂ¼ber liegenden Seite von einem nur in Richtung zum Oberteil hin beweglichen Bodenteil begrenzt wird, ein Volumsausgleich geschaffen werden, da sonst das Mittel wieder aus dem Kanal zurĂ¼ck gesaugt wĂ¼rde.Since the volume of the storage space would increase again when erecting the upper part, a volume compensation must be created by suitable measures, for example by the fact that the storage space is limited on the side opposite the upper part of a bottom part movable only towards the upper part, otherwise the agent would be sucked back out of the canal.

Damit eine zuverlässige Pumpwirkung gewährleistet ist, weisen der Oberteil und der Unterteil biegesteife Wandabschnitte auf, die Ă¼ber das Gelenk miteinander verbunden sind und zwischen denen der elastische Wandabschnitt angeordnet ist.So that a reliable pumping action is ensured, the upper part and the lower part have rigid wall sections, which are connected to one another via the joint and between which the elastic wall section is arranged.

In einer konstruktiv einfachen und leicht herzustellenden AusfĂ¼hrungsform der Erfindung sind die biegesteifen Wandabschnitte und das Gelenk aus einem einstĂ¼ckigen Teil gebildet. Sie können daher in einem einzigen Spritzvorgang hergestellt werden, wobei das Gelenk auf an sich bekannte Weise zum Beispiel als Filmscharnier ausgefĂ¼hrt werden kann.In a structurally simple and easy to manufacture embodiment of the invention, the rigid wall sections and the hinge are formed from a one-piece part. They can therefore be produced in a single injection process, wherein the joint can be carried out in a known per se, for example as a film hinge.

In einer bevorzugten AusfĂ¼hrungsform der Erfindung wird der Kanal direkt von den biegesteifen Wandabschnitten und dem elastischen Wandabschnitt begrenzt. Das heiĂŸt es sind zwischen den biegesteifen Wandabschnitten und dem elastischen Wandabschnitt keine weiteren Schutz- oder Trennschichten vorhanden, was die Herstellung weiter vereinfacht.In a preferred embodiment of the invention, the channel is bounded directly by the rigid wall sections and the elastic wall section. That is, there are no further protective or separating layers between the rigid wall sections and the elastic wall section, which further simplifies the production.

In einer besonders bevorzugten AusfĂ¼hrungsform können der Unterteil und der Oberteil mit ihren biegesteifen Abschnitten aus einstĂ¼ckigen Teilen gebildet sein und den Vorratsraum bzw. den Kanal begrenzen.In a particularly preferred embodiment, the lower part and the upper part can be formed with their rigid portions of one-piece parts and limit the reservoir or the channel.

Wenn der Unterteil und der Oberteil und auch das Gelenk aus einem einstĂ¼ckigen Teil gebildet sind, kann die gesamte BĂ¼rste, abgesehen vom beweglichen Bodenteil und den Borsten am BĂ¼rstenkopf, in einer einfachsten AusfĂ¼hrungsform aus einem einzigen Teil hergestellt werden, an dem nur noch der elastische Wandabschnitt angebracht werden muss, was durch einen zweiten Spritzvorgang auf einfache Weise durchgefĂ¼hrt werden kann.If the lower part and the upper part and also the joint are formed from a one-piece part, the entire brush, apart from the movable bottom part and the bristles on the brush head, can be made in a simple embodiment of a single part, on which only the elastic wall portion must be attached, which can be done by a second injection process in a simple manner.

Die Breite des Gelenks ist unter anderem von den Durchmessern des Oberteils und des Unterteils sowie deren Länge und in weiterer Folge natĂ¼rlich auch von der gewĂ¼nschten Stabilität des Gelenks gegen seitliches Abknicken abhängig. Bevorzugt ist bei der Erfindung, wenn die Breite des Gelenks zwischen 1/6 und 1/2, vorzugsweise etwa 1/3, des Durchmessers des Unterteils beträgt und/oder wenn die Breite des Gelenks zwischen 1/5 und 2/3, vorzugsweise etwa 1/2, des Durchmessers des Oberteils beträgt. Diese Dimensionen gewährleisten bei den Ă¼blichen Dimensionen derartiger BĂ¼rsten eine ausreichende Stabilität des Gelenks und Funktionalität der BĂ¼rste.The width of the joint is among other things of the diameters of the upper part and the lower part and their length and, of course, also dependent on the desired stability of the joint against lateral kinking. Preferred in the invention, when the width of the joint is between 1/6 and 1/2, preferably about 1/3, of the diameter of the lower part and / or if the width of the joint between 1/5 and 2/3, preferably about 1/2, the diameter of the shell is. These dimensions ensure in the usual dimensions of such brushes sufficient stability of the joint and functionality of the brush.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter AusfĂ¼hrungsbeispiele der Erfindung unter Bezugnahme auf die Zeichnungen. Es zeigt:

Fig. 1
eine erfindungsgemĂ¤ĂŸe BĂ¼rste im Schnitt,
Fig. 2
den Mittelbereich der BĂ¼rste im Bereich des Gelenks von hinten,
Fig. 3
den Mittelbereich der BĂ¼rste im Bereich des Gelenks von der Seite,
Fig. 4
den Mittelbereich der BĂ¼rste im Bereich des Gelenks von oben,
Fig. 5
die BĂ¼rste, während sie fĂ¼r einen Pumpvorgang abgeknickt wird und
Fig. 6
einen Schnitt durch die BĂ¼rste, während sie fĂ¼r einen Pumpvorgang abgeknickt wird.
Further features and advantages of the invention will become apparent from the following description of preferred embodiments of the invention with reference to the drawings. It shows:
Fig. 1
a brush according to the invention in section,
Fig. 2
the middle area of the brush in the area of the joint from behind,
Fig. 3
the middle area of the brush in the area of the joint from the side,
Fig. 4
the middle area of the brush in the region of the joint from above,
Fig. 5
the brush while it is bent for a pumping operation and
Fig. 6
a cut through the brush while it is bent for a pumping operation.

Die erfindungsgemĂ¤ĂŸe BĂ¼rste weist einen Oberteil 1 und einen Unterteil 2, die Ă¼ber ein Gelenk 3 miteinander verbunden sind, auf. Der Oberteil 1 und der Unterteil 2 sind aus einem harten und biegesteifen Material, beispielsweise Polypropylen, hergestellt und vorzugsweise mit dem Gelenk 3, dass in der Art eines Filmscharniers ausgefĂ¼hrt sein kann, einstĂ¼ckig hergestellt. Am oberen Ende des Oberteils 1 befindet sich ein BĂ¼rstenkopf 4 mit Borsten 5, deren Anzahl und Länge von jeweils gewĂ¼nschten Einsatzzweck abhängig sind.The brush according to the invention has an upper part 1 and a lower part 2, which are connected to each other via a hinge 3 on. The upper part 1 and the lower part 2 are made of a hard and rigid material, such as polypropylene, and preferably made in one piece with the hinge 3, which may be in the form of a film hinge. At the upper end of the upper part 1 is a brush head 4 with bristles 5, the number and length of each desired application depends.

Der Unterteil 2 ist zylindrisch und umschlieĂŸt einen Vorratsraum 6, der auf der dem Oberteil 1 gegenĂ¼berliegenden Seite von einem Bodenteil oder Kolben 7 begrenzt wird. Der Bodenteil 7 ist idealerweise ein an der Innenfläche 8 der Wand des Unterteils 2 gleitender Teil, der beispielsweise durch geeignet ausgeformte Rippen an der Innenfläche 8 und/oder Krallen 9 oder dergleichen nur in Pfeilrichtung 10 zum Oberteil 1 hin bewegbar ist, wogegen eine Bewegung in die andere Richtung durch die Rippen und/oder Krallen 9 verhindert wird.The lower part 2 is cylindrical and encloses a storage space 6 which is delimited on the side opposite the upper part 1 by a bottom part or piston 7. The bottom part 7 is ideally a sliding on the inner surface 8 of the wall of the lower part 2, which is movable for example by suitably shaped ribs on the inner surface 8 and / or claws 9 or the like only in the direction of arrow 10 to the upper part 1, whereas a movement in the other direction is prevented by the ribs and / or claws 9.

Der Oberteil 1 begrenzt einen sich zum BĂ¼rstenkopf 4 hin verengenden Kanal 11, der sich vom Vorratsraum 6 bis zum BĂ¼rstenkopf 4 erstreckt und am Ende 18 seinen kleinsten Querschnitt aufweist. Am Ende des Kanals 11 kann bei Bedarf noch eine Verlängerung in Form eines elastischen Röhrchens 12 angeordnet sein, einerseits, um den Strömungswiderstand im Anschluss an den Kanal 11 zusätzlich einstellen zu können, andererseits, um das Mittel weiter zum Ende der Borsten 5 hin fördern zu können. Das Röhrchen kann auch eine ähnliche Funktion wie ein Ventil Ă¼bernehmen, wenn es elastisch genug ist, um zusammen klappen zu können.The upper part 1 delimits a brush head 4 towards narrowing channel 11, which extends from the storage space 6 to the brush head 4 and at the end 18 has its smallest cross-section. If necessary, an extension in the form of an elastic tube 12 can be arranged at the end of the channel 11, on the one hand, in order to adjust the flow resistance in addition to the channel 11 in addition, on the other hand, in order to promote the agent further towards the end of the bristles 5 can. The tube can also perform a similar function as a valve if it is elastic enough to fold together.

Zwischen den harten und biegesteifen Ober- und Unterteilen 1, 2 ist im Bereich des Gelenks 3 ein elastischer Wandabschnitt 13 angeordnet, der einerseits an die Ränder 14, 15 der biegesteifen Wandabschnitte 16 und 17 des Oberteils 1 und des Unterteils 2 und andererseits an das Gelenk 13 anschlieĂŸt. Der elastische Wandabschnitt 13, der beispielsweise aus einem thermoplastischen Elastomer besteht, kann durch ein an sich bekanntes SpritzgieĂŸverfahren unmittelbar an die Wandabschnitte 16 und 17 angespritzt und somit unlösbar damit verbunden werden.Between the hard and rigid upper and lower parts 1, 2, an elastic wall portion 13 is arranged in the region of the joint 3, on the one hand to the edges 14, 15 of the rigid wall sections 16 and 17 of the upper part 1 and the lower part 2 and on the other hand to the joint 13 connects. The elastic wall section 13, which consists for example of a thermoplastic elastomer, can be injection-molded directly onto the wall sections 16 and 17 by means of a per se known injection molding method and thus be permanently connected thereto.

Um eine bestimmte Menge eines Mittels, beispielsweise Zahnpasta, vom Vorratsraum 6 zum BĂ¼rstenkopf 4 bzw. zu den Borsten 5 zu fördern, wird der Oberteil 1 gegenĂ¼ber dem Unterteil 2 abgeknickt, wie dies in Fig. 5 und 6 dargestellt ist. Dabei knickt der Oberteil 1 am Gelenk 3 gegenĂ¼ber dem Unterteil 2 ab und ein Teil des elastischen Wandabschnitts 13 sowie bis zu einem gewissen AusmaĂŸ auch der and den Rand 14 anschlieĂŸende biegesteife Abschnitt 16 werden etwas in den Vorratsraum 6 hinein gedrĂ¼ckt. Da der Bodenteil 7 nicht nach unten ausweichen kann, wird das Mittel durch den Kanal 11 und das Röhrchen 12 zu den bzw. zwischen die Borsten 5 gedrĂ¼ckt. Lässt man den Oberteil 1 los, wird dieser durch den elastischen Wandabschnitt 13 zurĂ¼ck in seine Ausgangslage bewegt, wobei sich der elastische Wandabschnitt 13 gleichzeitig wieder nach auĂŸen bewegt und somit das Volumen in Vorratsraum 6 vergrĂ¶ĂŸern wĂ¼rde. Der Strömungswiderstand in Kanal 11, im dargestellten AusfĂ¼hrungsbeispiel in erster Linie der Strömungswiderstand im Bereich des BĂ¼rstenkopfes 4, ist so groĂŸ, dass das Mittel nicht durch den Kanal 11 zurĂ¼ck gesaugt wird. Vielmehr sind der Strömungswiderstand und der Bewegungswiderstand des Bodenteils 7 so zueinander eingestellt, dass der Bodenteil 7 ein kleines StĂ¼ck in Richtung des Pfeils 10 gesaugt wird.To promote a certain amount of an agent, such as toothpaste, from the reservoir 6 to the brush head 4 and the bristles 5, the upper part 1 is bent relative to the lower part 2, as in Fig. 5 and 6 is shown. In this case, the upper part 1 buckles at the joint 3 with respect to the lower part 2 and a part of the elastic wall portion 13 and to a certain extent also the bending-resistant portion 16 adjoining the edge 14 are pressed slightly into the storage space 6. Since the bottom part 7 can not escape downwards, the agent is forced through the channel 11 and the tube 12 to and between the bristles 5. When the upper part 1 is released, it is moved back into its starting position by the elastic wall section 13, with the elastic wall section 13 simultaneously moving outwards again and thus increasing the volume in the storage space 6. The flow resistance in channel 11, in the illustrated embodiment primarily the flow resistance in the region of the brush head 4, is so great that the agent is not sucked back through the channel 11. Rather, the flow resistance and the movement resistance of the bottom part 7 are set to one another such that the bottom part 7 is sucked a small distance in the direction of the arrow 10.

In den Fig. 1, 3 und 6 ist nicht zu sehen, dass die an das Gelenk 3 anschlieĂŸenden biegesteifen Wandabschnitt des Oberteils 1 und des Unterteils 2 etwa um die Wandstärke der Wandabschnitte zueinander versetzt sind. Diese Anordnung verbessert die Pumpwirkung der erfindungsgemĂ¤ĂŸen BĂ¼rste. Es ist aber denkbar, dass die Wandabschnitte noch weiter oder weniger weit als in den Zeichnungen dargestellt zueinander versetzt sind. Es ist auch möglich, dass die Wandabschnitte im Bereich des Gelenks 3 zueinander fluchtend ausgerichtet sind.In the Fig. 1 . 3 and 6 can not be seen that the adjoining the hinge 3 rigid wall portion of the upper part 1 and the lower part 2 are offset by about the wall thickness of the wall sections to each other. This arrangement improves the pumping action of the brush according to the invention. However, it is conceivable that the wall sections are offset even further or less than shown in the drawings to each other. It is also possible for the wall sections in the area of the joint 3 to be aligned with one another.

Im dargestellten AusfĂ¼hrungsbeispiel wird der Strömungswiderstand des Kanals 11 in erster Linie durch den Strömungsquerschnitt im Bereich des BĂ¼rstenkopfes 4 bestimmt. Es ist selbstverständlich möglich, alternativ oder zusätzlich an anderen Stellen des Kanals 11 MaĂŸnahmen, z.B. ein Ventil, zusetzen, welche den Strömungswiderstand in Kanal 11 beeinflussen.In the illustrated embodiment, the flow resistance of the channel 11 is determined primarily by the flow cross-section in the region of the brush head 4. It is of course possible, alternatively or additionally at other locations of the channel 11, to take measures, e.g. a valve, which influence the flow resistance in channel 11.

Falls es bei einer z.B. neuen BĂ¼rste mit leerem Kanal 11 Probleme beim erstmaligen Pumpen des Mittels gibt, kann der Kanal 11 durch DrĂ¼cken auf den Bodenteil 7 so weit gefĂ¼llt werden, bis der RĂ¼ckströmwiderstand im Kanal 11 so groĂŸ wird, dass nicht das Mittel aus dem Kanal 11 zurĂ¼ck gesaugt sondern der Bodenteil 7 in Richtung des Pfeils gesaugt wird.If it is at a e.g. new channel with empty channel 11 problems when first pumping the agent there, the channel 11 can be filled by pressing on the bottom part 7 until the backflow resistance in the channel 11 is so large that not the agent sucked back from the channel 11 but the bottom part 7 is sucked in the direction of the arrow.

Claims (14)

  1. Brush, in particular toothbrush, comprising an upper part (1) and a lower part (2) which are interconnected to each other, wherein a storage chamber (6) for a liquid or pasty medium, in particular toothpaste, is provided in the lower part (2) and a brush head (4) is disposed on the upper part (1), and wherein a channel (11) extends between the storage chamber (6) and the brush head (4), wherein a device is disposed in the channel (11) which impedes or prevents a flow of the medium from the brush head (4) to the storage chamber (6), and wherein the upper part (1) and the lower part (2) have flexurally rigid wall sections (16, 17) and a flexible wall section (13) is positioned between them, which forms a wail section (13) of the storage chamber (6), characterized in that the flexurally rigid wall sections (16, 17) on the upper part (1) and the lower part (2) are connected to each other by an articulation (3) and that the elastic wall section (13) adjoins on the one hand to edges (14, 15) of the flexurally rigid wall sections (16, 17) of the upper part (1) and the lower part (2) and on the other hand adjoins the articulation (3).
  2. The brush according to claim 1, characterized in that the storage chamber (6) on the side opposite the upper part (1) is delimited by a base part (7) which is only movable in the direction of the upper part (1).
  3. The brush according to claim 2, characterized In that the channel (11) from the storage chamber (6) to the brush head (4) is continuously always open and that a cross-sectional narrowing is provided in the channel which produces a flow resistance that is greater than the movement resistance of the base part in the direction of the brush head (4).
  4. The brush according to any one of claims 1 to 3, characterized in that the flexurally rigid wall sections (16, 17) and the articulation (3) are formed from a one-piece part.
  5. The brush according to any one of claims 1 to 4, characterized in that the channel (11) is delimited directly by the flexurally rigid wall sections (16, 17) and the elastic wall section (13).
  6. The brush according to any one of claims 1 to 5, characterized in that the lower part (2) with its flexurally rigid section (17) is formed from a one-piece part and delimits the storage chamber (6).
  7. The brush according to any one of claims 1 to 6, characterized in that the upper part (1) with its flexurally rigid section (16) is formed from a one-piece part.
  8. The brush according to any one of claims 1 to 7, characterized in that the flexurally rigid wall sections (16, 17), the articulation (3) and the elastic wall section (13) are non-detachably interconnected by an injection moulding process.
  9. The brush according to any one of claims 1 to 8, characterized in that the flexurally rigid wall sections (16, 17) are substantially in alignment with one another in the area of the articulation (3).
  10. The brush according to any one of claims 1 to 8, characterized In that the flexurally rigid wall section (16) of the upper part (1) is offset with respect to the flexurally rigid wall section (17) of the lower part (2) in the area of the articulation (3) towards the longitudinal axis of the lower part (2),
  11. The brush according to claim 10, characterized in that the flexurally rigid wall section (16) of the upper part (1) is offset with respect to the flexurally rigid wall section (17) of the lower part (2) in the area of the articulation (3) by approximately the wall thickness of the wall sections (16, 17) towards the centre of the brush.
  12. The brush according to any one of claims 1 to 11, characterized in that the width of the articulation (3) is between 1/6 and 1/2, preferably about 1/3 of the diameter of the lower part (2).
  13. The brush according to any one of claims 1 to 12, characterized in that the width of the articulation (3) is between 1/5 and 2/3. preferably about 1/2 of the diameter of the upper part (1).
  14. The brush according to any one of claims 1, 2 or 4 to 13, characterized in that a valve (11) is disposed in the channel.
EP10795906.6A 2009-09-28 2010-09-28 Toothbrush Not-in-force EP2482691B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT15242009A AT508350B1 (en) 2009-09-28 2009-09-28 TOOTHBRUSH
PCT/AT2010/000352 WO2011035359A2 (en) 2009-09-28 2010-09-28 Toothbrush

Publications (2)

Publication Number Publication Date
EP2482691A2 EP2482691A2 (en) 2012-08-08
EP2482691B1 true EP2482691B1 (en) 2018-07-11

Family

ID=43426043

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10795906.6A Not-in-force EP2482691B1 (en) 2009-09-28 2010-09-28 Toothbrush

Country Status (10)

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US (1) US9498052B2 (en)
EP (1) EP2482691B1 (en)
JP (1) JP2013505742A (en)
CN (1) CN102573562A (en)
AT (1) AT508350B1 (en)
AU (1) AU2010300065B2 (en)
BR (1) BR212012009026U2 (en)
RU (1) RU2560265C2 (en)
WO (1) WO2011035359A2 (en)
ZA (1) ZA201203017B (en)

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Publication number Priority date Publication date Assignee Title
US9339104B2 (en) * 2012-07-22 2016-05-17 Dennis L. O'Neill Flexible handle liquid dispenser with rotating brush head
US10258205B2 (en) 2014-07-10 2019-04-16 Unger Marketing International, Llc Cleaning devices with selectively flexible or rigid handles
USD772580S1 (en) 2014-07-10 2016-11-29 Unger Marketing International Llc Toilet brush handle
US11458515B2 (en) 2017-01-26 2022-10-04 Unger Marketing International, Llc Cleaning devices for cleaning of difficult to reach locations
US11006738B2 (en) 2017-01-26 2021-05-18 Unger Marketing International, Llc Cleaning devices having selectively flexible or rigid handles
USD851410S1 (en) 2018-01-24 2019-06-18 Unger Marketing International, Llc Adjustable brush handle
USD852510S1 (en) 2018-01-24 2019-07-02 Unger Marketing International, Llc Adjustable brush handle
USD851409S1 (en) 2018-01-24 2019-06-18 Unger Marketing International, Llc Detail brush handle
USD851408S1 (en) 2018-01-24 2019-06-18 Unger Marketing International, Llc Cartridge brush
USD882963S1 (en) 2018-07-24 2020-05-05 Unger Marketing International, Llc Cartridge brush

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US3300099A (en) * 1965-05-18 1967-01-24 Gen Foods Corp Metering dispenser for liquids
US4088412A (en) * 1976-08-24 1978-05-09 Luigi Del Bon Fountain brush
DE3042285A1 (en) * 1980-11-08 1982-06-09 Bramlage Gmbh, 2842 Lohne MEASURE DONOR FOR PASTOESE
JPS59209309A (en) * 1982-10-22 1984-11-27 å¾³æ°¸ă€€æ´‹ä¸€ Brush with flowable substance flowing-out apparatus
GB2194728A (en) * 1985-12-23 1988-03-16 Gary Martin Foy Handpump mouthwash/toothbrush unit
FR2629322B1 (en) * 1988-03-29 1992-01-03 Morin Philippe TOOTHBRUSH WITH INCORPORATED PASTE TANK
US5346324A (en) * 1991-09-19 1994-09-13 Youti Kuo Dentifrice dispensing toothbrush with replaceable cartridge
RU2048135C1 (en) * 1992-06-02 1995-11-20 Đ˜Đ³Đ¾Ñ€ÑŒ Đ¡ĐµÑ€Đ°Ñ„Đ¸Đ¼Đ¾Đ²Đ¸Ñ‡ Đ˜Đ²Đ°Đ½Đ¾Đ² Tooth brush
RU2039493C1 (en) * 1992-06-02 1995-07-20 Đ˜Đ³Đ¾Ñ€ÑŒ Đ¡ĐµÑ€Đ°Ñ„Đ¸Đ¼Đ¾Đ²Đ¸Ñ‡ Đ˜Đ²Đ°Đ½Đ¾Đ² Tooth brush
GB9319686D0 (en) * 1993-09-23 1993-11-10 Taghavi Said Toothbrush with toothpaste reservoir and bristle adapters
CN2187389Y (en) * 1994-01-07 1995-01-18 郭有迪 Toothpaste distributing toothbrush with spring compressing pump brake
GB9717429D0 (en) * 1997-08-19 1997-10-22 Veresk Biosystems Ltd Brush
AT3162U1 (en) * 1998-02-03 1999-11-25 Habinger Rene Ing TOOTHPASTE ADDING BRUSH
US7789583B2 (en) * 2005-08-19 2010-09-07 Youti Kuo Manual and electrical pump toothbrushes for dispensing liquid and paste dentifrices
FR2893091B1 (en) * 2005-11-10 2007-12-21 Rexam Dispensing Smt Soc Par A TILTING CHECK PUMP

Also Published As

Publication number Publication date
EP2482691A2 (en) 2012-08-08
AT508350B1 (en) 2011-01-15
WO2011035359A3 (en) 2011-06-16
JP2013505742A (en) 2013-02-21
ZA201203017B (en) 2013-01-30
WO2011035359A2 (en) 2011-03-31
AU2010300065A1 (en) 2012-06-21
BR212012009026U2 (en) 2015-11-17
US20120183344A1 (en) 2012-07-19
RU2560265C2 (en) 2015-08-20
AT508350A4 (en) 2011-01-15
RU2012117464A (en) 2013-11-10
AU2010300065B2 (en) 2016-07-14
CN102573562A (en) 2012-07-11
US9498052B2 (en) 2016-11-22

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