WO1988006417A1 - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
WO1988006417A1
WO1988006417A1 PCT/EP1988/000137 EP8800137W WO8806417A1 WO 1988006417 A1 WO1988006417 A1 WO 1988006417A1 EP 8800137 W EP8800137 W EP 8800137W WO 8806417 A1 WO8806417 A1 WO 8806417A1
Authority
WO
WIPO (PCT)
Prior art keywords
toothbrush
teeth
brushing
shaft
brush
Prior art date
Application number
PCT/EP1988/000137
Other languages
German (de)
French (fr)
Inventor
Hans-Dieter Mierau
Ingeborg Tegtmeier
Original Assignee
Blendax-Werke R. Schneider Gmbh & Co.
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 Blendax-Werke R. Schneider Gmbh & Co. filed Critical Blendax-Werke R. Schneider Gmbh & Co.
Publication of WO1988006417A1 publication Critical patent/WO1988006417A1/en
Priority to NO884777A priority Critical patent/NO167492C/en
Priority to KR1019880701371A priority patent/KR890700326A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B17/00—Accessories for brushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0004—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means
    • A46B15/0012—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means with a pressure controlling device
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0038—Arrangements for enhancing monitoring or controlling the brushing process with signalling means
    • A46B15/004—Arrangements for enhancing monitoring or controlling the brushing process with signalling means with an acoustic signalling means, e.g. noise
    • 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
    • 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
    • A46B5/007—Inserts made of different material, e.g. springs, plates
    • 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 for manual or mechanical actuation.
  • Optimal oral hygiene means removal of existing dental plaque (microbial plague) and food residues and prevention of these pathogenic plaque.
  • a pleasing increase in oral hygiene awareness is offset by well-meaning, but primarily too force-intensive brushing measures, which are increasingly frightening damage on a scale of acute and chronic brush trauma: exposed tooth necks (gingival recessions), stab injuries from toothbrush bristles in the gums (acute brush lesions), gaps in the gums (gaps in the breasts) Gaps), wedge-shaped loss of substance in the area of the root near the crown of the tooth (wedge-shaped defects), whereby the rate of loss of tooth substance can be increased by the usual increasing consumption of acidic food and drinks with subsequent brushing measures (erosions).
  • the principle of action of this pathological is the principle of action of this pathological.
  • Appearance is based on the transfer of excessive forces when brushing over the gums (gingiva) to the bones of the tooth holder (limbal alveolar bone), which is then reabsorbed. To the loss of its bony surface on the tooth root atrophies the gums and the exposed tooth neck is created. In extensive, computer-assisted examinations, excessive force transmission as the main etiological factor of these described acute and chronic brush injuries was clearly identified.
  • the invention is therefore based on the object of providing a toothbrush which enables the user to achieve the optimum contact pressure for brushing teeth in a simple manner without additional electrical or electronic aids.
  • the brush shaft is formed at a suitable location with a special profile cross-section, which allows a preferably sudden mechanical deflection of the brush head when a certain contact pressure is reached, the prerequisite is created in a particularly simple and advantageous manner for the brushing force applied by the patient only up to a specified maximum limit to take effect. If this maximum limit is reached, it deforms beforehand curved deflection profile of the brush shaft suddenly becomes an elongated profile with a correspondingly changed stiffness, the characteristic of this change in stiffness being variable within wide limits due to the curvature, the material properties and the material thickness of the deflection profile. With a thin, strongly arched profile cross section, high forces can be achieved up to the deformation limit with the subsequent greatly reduced transmission possibility.
  • the deflection profile of the brush shaft is formed only with a slight curvature, but with a larger profile cross-section, this effect is weakened, so that any transfer characteristic of the brushing force can be achieved by varying the curvature, the profile cross-section and / or the material used. It is also possible to link the transmission characteristic with different stages by coupling two or more different deflection profiles in order to e.g. to achieve two "sticking points" with different forces. This makes it easy to display an excessively low or too high contact pressure with any desired bandwidth.
  • Toothbrushes with this technological innovation are to be widespread among patients, especially among young adults; Because epidemiological studies on a representative number of 18 to 22 year old young people prove that they can be enticed into force-intensive brushing by a commitment to dental health that is in itself to be welcomed, and that damage is set at a significantly higher rate compared to the same age groups decades ago . These new toothbrushes therefore serve an etiological purpose oriented and thus successful dentistry, save the patient expensive operations to cover exposed tooth necks with dubious long-term success and help to reduce costs.
  • Fig. 8 show the toothbrush in a third end position.
  • the brush shaft 1 in a deflection section 2 following the brush head 3 is in each case similar over a part of its length similar to a leaf spring according to the crack frog principle shaped that when brushing teeth until the deflection of the brush head 3, an optimal or maximum contact pressure can not be exceeded.
  • the brush head 3 is arranged on the brush shaft 1 so that it is suddenly deflected when a certain contact pressure is reached so that an optimal contact pressure can be maintained while brushing the teeth.
  • the mechanical deflection or the audible exceeding of the cracking point in the deflecting section 2 of the brush shaft 1 designed according to the cracking frog principle thus provides an acoustic and / or tactile indication when the optimum contact pressure on the brush shaft is reached.
  • FIGS. 3 to 5 Various examples of suitable deflection profiles 4 on the brush shaft 1 are shown in FIGS. 3 to 5, in each case in accordance with the section lines III-III of FIGS. 1 and 2.
  • FIG. 3 shows a deflection profile 4 which is curved approximately in the shape of an arc in the transverse direction to its longitudinal extent transition area between brush head 3 and brush shaft 1.
  • two profile strips 4a, 4b running in the longitudinal direction of the brush shank 1 are approximately angled towards one another for the longitudinal extension of the outer profile and appropriately separated from one another by a central longitudinal slot 4c, that when the contact pressure is exceeded, as well as the curved deflection profile 4 of FIG. 3, they come into a common stretched position transverse to the longitudinal extension of the brush shaft 1, so that the brush head 3, as indicated in FIGS stretched position can reach a deflection or kinking position 5 which is angled upwards with respect to the longitudinal axis of the brush shaft, in which the brush head 3 assumes an essentially unstable position and no further brushing of teeth is permitted.
  • the third exemplary embodiment shown in FIG. 5 for the deflection profile 4 between the brush shaft 1 and the brush head 3 has a corrugated shape transversely to the longitudinal extension of the brush shaft 1, but functions practically in the same way as that described above in connection with the two exemplary embodiments of FIGS. 3 and 4 has been set out.
  • the thickness of the material cross section and the curvature or the inclination of the legs 4a, 4b of the deflection profile 4 play an important role in determining the optimal or maximum contact pressure, but can be selected and shaped as required.
  • Brush shaft 1, brush head 3 and deflection section 2 can each be formed in one piece from a suitable plastic or composite material with corresponding suspension properties.
  • two different profile cross sections 4 corresponding to FIGS. 3 and 4 or 5 can be connected in succession such that the brush head 3 relative to the brush shaft 1 in the pressure-relieved initial position of FIG is angled below in order to use a sufficient optimal contact pressure after overcoming a first sticking point to reach the stretched intermediate position shown in FIG. 7 and if this optimum contact pressure is exceeded after overcoming a second sticking point in the third deflection position shown in FIG. 8, in which the brush head 3 bends away from the longitudinal axis of the brush shaft 1, similar to the two exemplary embodiments of FIGS. 1 and 2, is angled upward and is in an unstable position in which brushing teeth is no longer possible.

Abstract

While brushing the teeth with known toothbrushes, whether manually or mechanically operated, the user can involuntarily apply too much pressure, which may cause damage with far-reaching consequences to the gums, teeth and dental fixing devices. Such damage may be avoided by using a toothbrush which enables the user to achieve optimum pressure for brushing the teeth by simple means, and without using additional electrical or electronic aid. The head (3) of the toothbrush is so disposed on the shaft (1) of the toothbrush, that it flexes when a certain level of pressure is reached, enabling optimum pressure to be maintained while the teeth are brushed. An acoustic and/or tangible sign may be given when optimum pressure on the shaft (1) of the toothbrush is reached, or the shaft (1) may be formed at certain points like a leaf spring, in such a way that the flexible design of the toothbrush head ensures that an optimum or maximum pressure while brushing the teeth is not exceeded.

Description

Zahnbürste toothbrush
Die Erfindung betrifft eine Zahnbürste für manuelle oder mechanische Betätigung.The invention relates to a toothbrush for manual or mechanical actuation.
Optimale Mundhygiene bedeutet Entfernung bestehender Zahnbeläge (mikrobielle Plague) und Nahrungsreste sowie Verhinderung dieser pathogenen Beläge. Einer erfreulichen Zunahme des Mundhygienebewußtseins stehen durch gutgemeinte, jedoch vornehmlich zu kraftintensive Bürstmaßnahmen in steigendem Maße erschreckende Schäden in einer Skala akuter und chronischer Bürsttraumata gegenüber: freiliegende Zahnhälse (Gingivarezessionen), Stichverletzungen durch Zahnbürstenborsten im Zahnfleisch (akute Bürstläsionen), Spaltbildungen im Zahnfleisch (Stillman-Spalten), keilförmige Substanzverluste im kronennahen Wurzelbereich des Zahnes (keilförmige Defekte), wobei durch den heute üblichen, ansteigenden Genuß saurer Speisen und Getränke mit nachfolgenden Bürstmaßnahmen die Zahnsubstanzverlustquote noch erhöht werden kann (Erosionen). Das Wirkungsprinzip dieser pathologischer. Erscheinungsformen beruht auf der Übertragung zu starker Kräfte beim Bürsten über das Zahnfleisch (Gingiva) auf den Knochen des Zahnhalteapparates (limbaler Alveolarknochen), der dann resorbiert wird. Nach dem Verlust seiner knöchernen Unterlage auf der Zahnwurzel atrophiert das Zahnfleisch, und der freiliegende Zahnhals ist entstanden. In aufwendigen, computergestützten Untersuchungen, konnte eine überhöhte Kraftübertragung als ätiologischer Hauptfaktor dieser geschilderten akuten und chronischen Bürsttraumata eindeutig festgestellt werden.Optimal oral hygiene means removal of existing dental plaque (microbial plague) and food residues and prevention of these pathogenic plaque. A pleasing increase in oral hygiene awareness is offset by well-meaning, but primarily too force-intensive brushing measures, which are increasingly frightening damage on a scale of acute and chronic brush trauma: exposed tooth necks (gingival recessions), stab injuries from toothbrush bristles in the gums (acute brush lesions), gaps in the gums (gaps in the breasts) Gaps), wedge-shaped loss of substance in the area of the root near the crown of the tooth (wedge-shaped defects), whereby the rate of loss of tooth substance can be increased by the usual increasing consumption of acidic food and drinks with subsequent brushing measures (erosions). The principle of action of this pathological. Appearance is based on the transfer of excessive forces when brushing over the gums (gingiva) to the bones of the tooth holder (limbal alveolar bone), which is then reabsorbed. To the loss of its bony surface on the tooth root atrophies the gums and the exposed tooth neck is created. In extensive, computer-assisted examinations, excessive force transmission as the main etiological factor of these described acute and chronic brush injuries was clearly identified.
Aus der DE-PS 34 14 623 ist bereits eine Elektrozahnbürste bekannt, die dem Benutzer eine Kontrolle des Anpreßdruckes mittels einer integrierten elektronischen Vorrichtung gestattet. Eine Handhabung ohne elektrische Energieversorgung oder eine Nachrüstung bereits vorhandener Geräte ist damit aber nicht möglich.From DE-PS 34 14 623 an electric toothbrush is already known, which allows the user to control the contact pressure by means of an integrated electronic device. However, handling without electrical power supply or retrofitting existing devices is not possible.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Zahnbürste zu schaffen, mit der es dem Benutzer ermöglicht wird, den für das Zähneputzen optimalen Anpreßdruck in einfacher Weise ohne zusätzliche elektrische oder elektronische Hilfsmittel zu erreichen.The invention is therefore based on the object of providing a toothbrush which enables the user to achieve the optimum contact pressure for brushing teeth in a simple manner without additional electrical or electronic aids.
Diese Aufgabe wird erfindungsgemäß durch den Kennzeichnungsteil des Anspruches 1 gelöst, während in den Ansprüchen 2 bis 4 besonders vorteilhafte Weiterbildungen der Erfindung gekennzeichnet sind.This object is achieved according to the invention by the characterizing part of claim 1, while particularly advantageous developments of the invention are characterized in claims 2 to 4.
Dadurch, daß der Bürstenschaft an geeigneter Stelle mit einem besonderen Profilquerschnitt ausgebildet ist, der bei Erreichen eines bestimmten Anpreßdruckes eine vorzugsweise plötzliche mechanische Auslenkung des Bürstenkopfes ermöglicht, wird in besonders einfacher und vorteilhafter Weise die Voraussetzung dafür geschaffen, die vom Patienten angewandte Bürstkraft nur bis zu einer vorgegebenen Höchstgrenze wirksam werden zu lassen. Wird diese Höchstgrenze erreicht, so verformt sich das vorher gewölbte Auslenkprofil des Bürstenschaftes plötzlich zu einem gestreckten Profil mit einer entsprechend veränderten Steifigkeit, wobei die Charakteristik dieser Änderung der Steifigkeit durch die Wölbung, die Materialeigenschaften und die Materialdicke des Auslenkprofils in weiten Grenzen variierbar ist. Mit einem dünnen, stark gewölbten Profilguerschnitt können bis zur Verformungsgrenze hohe Kräfte mit nachfolgender stark verringerter Obertragungs- möglichkeit erreicht werden.Characterized in that the brush shaft is formed at a suitable location with a special profile cross-section, which allows a preferably sudden mechanical deflection of the brush head when a certain contact pressure is reached, the prerequisite is created in a particularly simple and advantageous manner for the brushing force applied by the patient only up to a specified maximum limit to take effect. If this maximum limit is reached, it deforms beforehand curved deflection profile of the brush shaft suddenly becomes an elongated profile with a correspondingly changed stiffness, the characteristic of this change in stiffness being variable within wide limits due to the curvature, the material properties and the material thickness of the deflection profile. With a thin, strongly arched profile cross section, high forces can be achieved up to the deformation limit with the subsequent greatly reduced transmission possibility.
Bildet man das Auslenkprofil deε Bürstenschaftes hingegen nur mit einer geringen Wölbung, aber einem größeren Profilguerschnitt aus, so wird dieser Effekt abgeschwächt, so daß durch Variation der Wölbung, des Profilguerschnittes und/ oder des verwendeten Materials jede Ubertragungskennlinie der Bürstkraft zu erreichen ist. Es ist auch möglich, durch Kopplung zweier oder mehrerer unterschiedlicher Auslenkprofile die übertragungεkennlinie mit verschiedenen Stufen zu verεehen, um so z.B. zwei "Knackpunkte" bei unterechiedlichen Kräften zu erreichen. Damit ist dann leicht eine Anzeige eines zu niedrigen oder zu hohen Anpreßdruckes mit jeder gewünschten Bandbreite zu ermöglichen.If, however, the deflection profile of the brush shaft is formed only with a slight curvature, but with a larger profile cross-section, this effect is weakened, so that any transfer characteristic of the brushing force can be achieved by varying the curvature, the profile cross-section and / or the material used. It is also possible to link the transmission characteristic with different stages by coupling two or more different deflection profiles in order to e.g. to achieve two "sticking points" with different forces. This makes it easy to display an excessively low or too high contact pressure with any desired bandwidth.
Zahnbürsten mit dieser bahnbrechenden Neuerung ist eine große Verbreitung unter den Patienten zu wünschen, besonders unter den jungen Erwachsenen; denn epidemiologische Untersuchungen an einer repräsentativen Anzahl von 18- bis 22jährigen jungen Menschen beweisen, daß diese sich durch ein an und für sich begrüßenswertes Engagement für Zahngesundheit zu kraftintensivem Bürsten hinreißen lassen und sich, verglichen mit gleichen Altersgruppen vor Jahrzehnten, Schäden in signifikant höherer Quote setzen. Diese neuen Zahnbürsten dienen somit einer ätiologisch orientierten und damit erfolgreichen Zahnheilkunde, ersparen dem Patienten kostspielige Operationen zur Deckung freiliegender Zahnhälse mit zweifelhaftem Dauererfolg und tragen zur Koεtendämpfung bei.Toothbrushes with this groundbreaking innovation are to be widespread among patients, especially among young adults; Because epidemiological studies on a representative number of 18 to 22 year old young people prove that they can be enticed into force-intensive brushing by a commitment to dental health that is in itself to be welcomed, and that damage is set at a significantly higher rate compared to the same age groups decades ago . These new toothbrushes therefore serve an etiological purpose oriented and thus successful dentistry, save the patient expensive operations to cover exposed tooth necks with dubious long-term success and help to reduce costs.
Bevorzugte Auεführungsbeispiele der Erfindung sind in der Zeichnung Schematisch dargestellt. Es zeigenPreferred exemplary embodiments of the invention are shown schematically in the drawing. Show it
Fig. 1 eine Handzahnbürste,1 is a manual toothbrush,
Fig. 2 eine Aufsteckbürste für einen vorzugsweise elektromechanischen Antrieb,2 a brush head for a preferably electromechanical drive,
Fig. 3 bis 5 verschiedene mögliche Profilguerschnitte des3 to 5 different possible Profilguerschnitte the
Bürstenschaftes gemäß Schnittlinie III - III bei jedem der beiden Ausführungsbeispiele von Fig. 1 und 2,Brush shaft according to section line III - III in each of the two exemplary embodiments of FIGS. 1 and 2,
Fig. 6 bis 8 ein weiteres, gegenüber den Ausführungsbeispieien von Fig. 1 und 2 abgewandeltes Ausführungsbeispiel einer Handzahnbürste, die aber auch für eine entsprechende Aufεteckbürste geeignet ist, mit zwei nacheinander anεprechenden6 to 8 a further embodiment of a manual toothbrush, modified from the embodiment examples of FIGS. 1 and 2, but which is also suitable for a corresponding plug-on brush, with two successive ones
"Knackpunkten", wobei"Sticking points", being
Fig. 6 die Zahnbürste in einer ersten Ausgangsstellung,6 shows the toothbrush in a first starting position,
Fig. 7 die Zahnbürste in einer zweiten Mittelstellung undFig. 7, the toothbrush in a second middle position and
Fig. 8 die Zahnbürste in einer dritten Endstellung zeigen. Bei den in Fig. 1 und 2 gezeigten beiden Ausführungsbeispielen einer Handzahnbürste und einer Aufsteckbürste für einen vorzugsweise elektromechanischen Antrieb ist der Bürstenschaft 1 in einem Auslenkabschnitt 2 im Anschluß an den Bürstenkopf 3 jeweils über einen Teil seiner Länge ähnlich einer Blattfeder nach dem Knackfrosch-Prinzip derart ausgeformt, daß beim Zähneputzen bis zur Auslenkung des Bürstenkopfes 3 ein optimaler oder maximaler Anpreßdruck nicht überschritten werden kann. Der Bürstenkopf 3 ist dabei am Bürstenschaft 1 so angeordnet, daß er bei Erreichen eines bestimmten Anpreßdruckes derart plötzlich ausgelenkt wird, daß ein optimaler Anpreßdruck während des Zähneputzens eingehalten werden kann. Durch die mechanische Auslenkung bzw. durch daε hörbare Uberεchreiten des Knackpunktes bei dem nach dem Knackfrosch-Prinzip ausgestalteten Auεlenkabschnitt 2 deε Bürstenschaftes 1 ist somit eine akustische und/oder fühlbare Anzeige bei Erreichen des optimalen Anpreßdruckes am Bürstenschaft gegeben.Fig. 8 show the toothbrush in a third end position. In the two exemplary embodiments of a manual toothbrush and a push-on brush for a preferably electromechanical drive shown in FIGS. 1 and 2, the brush shaft 1 in a deflection section 2 following the brush head 3 is in each case similar over a part of its length similar to a leaf spring according to the crack frog principle shaped that when brushing teeth until the deflection of the brush head 3, an optimal or maximum contact pressure can not be exceeded. The brush head 3 is arranged on the brush shaft 1 so that it is suddenly deflected when a certain contact pressure is reached so that an optimal contact pressure can be maintained while brushing the teeth. The mechanical deflection or the audible exceeding of the cracking point in the deflecting section 2 of the brush shaft 1 designed according to the cracking frog principle thus provides an acoustic and / or tactile indication when the optimum contact pressure on the brush shaft is reached.
Verschiedene Beispiele für geeignete Auεlenkprofile 4 am Bürstenschaft 1 sind in Fig. 3 bis 5 gezeigt, und zwar jeweils entsprechend den Schnittlinien III - III von Fig. 1 und 2. So zeigt Fig. 3 ein quer zu seiner Längserstreckung etwa kreisbogenförmig gewölbtes Auslenkprofil 4 im übergangsbereich zwischen Bürstenkopf 3 und Bürstenschaft 1.Various examples of suitable deflection profiles 4 on the brush shaft 1 are shown in FIGS. 3 to 5, in each case in accordance with the section lines III-III of FIGS. 1 and 2. Thus, FIG. 3 shows a deflection profile 4 which is curved approximately in the shape of an arc in the transverse direction to its longitudinal extent transition area between brush head 3 and brush shaft 1.
Bei dem Auεführungsbeispiel von Fig. 4 εind zwei in Längsrichtung des Bürstenschaftes 1 verlaufende Profilstreifen 4a, 4b etwa entsprechend der Wölbung deε Auslenkprofils 4 von Fig. 3 guer zur Längserstreckung des Ausienkprofils gegeneinander angewinkelt und durch einen mittigen Längsschlitz 4c zweckmäßigerweise derart voneinander getrennt, daß sie bei Uberschreiten deε Anpreßdruckes ebenso wie das gewölbte Auslenkprofil 4 von Fig. 3 in eine gemeinsame gestreckte Lage quer zur Längserstreckung des Bürstenschaftes 1 kommen, εo daß der Bürstenkopf 3, wie in Fig. 1 Und 2 jeweils strichpunktiert angedeutet iεt, aus seiner zuvor gestreckten Lage in eine gegenüber der Längsachse des Bürstenschaftes nach oben abgewinkelte Auslenk- bzw. Abknickstellung 5 gelangen kann, in der der Bürstenkopf 3 eine im wesentlichen labile Lage einnimmt und ein weiteres zähneputzen nicht mehr erlaubt.In the embodiment of FIG. 4, two profile strips 4a, 4b running in the longitudinal direction of the brush shank 1 are approximately angled towards one another for the longitudinal extension of the outer profile and appropriately separated from one another by a central longitudinal slot 4c, that when the contact pressure is exceeded, as well as the curved deflection profile 4 of FIG. 3, they come into a common stretched position transverse to the longitudinal extension of the brush shaft 1, so that the brush head 3, as indicated in FIGS stretched position can reach a deflection or kinking position 5 which is angled upwards with respect to the longitudinal axis of the brush shaft, in which the brush head 3 assumes an essentially unstable position and no further brushing of teeth is permitted.
Das in Fig. 5 gezeigte dritte Auεführungsbeispiel für das Auslenkprofil 4 zwischen Bürstenschaft 1 und Bürstenkopf 3 hat eine quer zur Längserstreckung deε Bürstenschaftes 1 gewellte Form, funktioniert aber praktisch in gleicher Weise, wie dies vorstehend in Verbindung mit den beiden Ausführungsbeispielen von Fig. 3 und 4 dargelegt worden iεt. Bei allen drei gezeigten Auεführungsbeispielen spielen natürlich die Dicke des Materialquerschnittes und die Wölbung bzw. die gegenseite Schrägstellung der Schenkel 4a, 4b deε Auslenkprofils 4 für die Bestimmung des optimalen bzw. maximalen Anpreßdruckes eine wesentliehe Rolle, können jedoch ganz nach Bedarf ausgewählt und geformt werden. Bürstenschaft 1, Bürstenkopf 3 und Auslenkabschnitt 2 können jeweils einstückig aus einem geeigneten Kunststoff oder Verbundwerkstoffen mit entsprechenden Federungseigenεchaften ausgebildet sein.The third exemplary embodiment shown in FIG. 5 for the deflection profile 4 between the brush shaft 1 and the brush head 3 has a corrugated shape transversely to the longitudinal extension of the brush shaft 1, but functions practically in the same way as that described above in connection with the two exemplary embodiments of FIGS. 3 and 4 has been set out. In all three exemplary embodiments shown, the thickness of the material cross section and the curvature or the inclination of the legs 4a, 4b of the deflection profile 4 play an important role in determining the optimal or maximum contact pressure, but can be selected and shaped as required. Brush shaft 1, brush head 3 and deflection section 2 can each be formed in one piece from a suitable plastic or composite material with corresponding suspension properties.
Bei dem in Fig. 6 bis 8 gezeigten abgewandelten Ausführungsbeispiel können beispielweise zwei unterschiedliche Profilquerschnitte 4 entsprechend Fig. 3 und 4 bzw. Fig. 5 derart nacheinander geschaltet sein, daß der Bürstenkopf 3 gegenüber dem Bürstenεchaft 1 in der druckentlasteten Ausgangsstellung von Fig. 6 nach unten abgewinkelt ist, um bei Anwendung eines ausreichenden optimalen Anpreßdruckes nach Überwindung eines erεten Knackpunktes in die in Fig. 7 gezeigte gestreckte Zwischenεtellung zu gelangen und bei Uberschreiten dieses optimalen Anpreßdruckeε nach Überwindung eines zweiten Knackpunktes in die in Fig. 8 gezeigte dritte Auslenkstellung nach oben wegzuknicken, in der der Bürstenkopf 3 gegenüber der Längsachse deε Bürstenschaftes 1 ähnlich den beiden Ausführungsbeispielen von Fig. 1 und 2 nach oben abgewinkelt iεt und sich in einer labilen Stellung befindet, in der ein Zähneputzen nicht mehr möglich iεt. In the modified embodiment shown in FIGS. 6 to 8, for example, two different profile cross sections 4 corresponding to FIGS. 3 and 4 or 5 can be connected in succession such that the brush head 3 relative to the brush shaft 1 in the pressure-relieved initial position of FIG is angled below in order to use a sufficient optimal contact pressure after overcoming a first sticking point to reach the stretched intermediate position shown in FIG. 7 and if this optimum contact pressure is exceeded after overcoming a second sticking point in the third deflection position shown in FIG. 8, in which the brush head 3 bends away from the longitudinal axis of the brush shaft 1, similar to the two exemplary embodiments of FIGS. 1 and 2, is angled upward and is in an unstable position in which brushing teeth is no longer possible.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Zahnbürεte für manuelle oder mechanische Betätigung, d a d u r c h g e k e n n z e i c h n e t , daß ihr Bürstenkopf (3) am Bürstenεchaft (1) bei Erreichen eines bestimmten Anpreßdruckes derart auslenkbar angeordnet ist, daß ein optimaler Anpreßdruck während des Zähneputzens einzuhalten ist.1. Toothbrush for manual or mechanical actuation, so that your brush head (3) on the brush shaft (1) is arranged such that it can be deflected when a certain contact pressure is reached so that an optimal contact pressure is maintained during brushing.
2. Zahnbürste nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , daß eine akustische und/ oder fühlbare Anzeige bei Erre
Figure imgf000010_0001
ichung deε optimalen Anpreßdruckes am Bürstenschaft (1) vorgesehen iεt.2. Toothbrush according to claim 1, characterized in that an acoustic and / or tactile display at Erre
Figure imgf000010_0001
The optimum contact pressure on the brush shaft (1) is provided.
3. Zahnbürste nach Anεpruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , daß der Bürstenschaft (1) stellenweise ähnlich einer Blattfeder derart ausgeformt ist, daß beim Zähneputzen bis zur Auslenkung des Bürstenkopfes (3) ein optimaler oder maximaler Anpreßdruck nicht überschritten werden kann. 3. Toothbrush according to claim 1 or 2, characterized in that the brush shaft (1) is shaped in places similar to a leaf spring in such a way that when brushing teeth until the brush head (3) deflects, an optimal or maximum contact pressure cannot be exceeded.
Zahnbürste nach einem oder mehreren der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t , daß durch Kopplung zweier oder mehrerer unterschiedlicher Auslenkprofile (4) am Bürstenschaft (1) eine stufenweise Auslenkung des Bürstenkopfes (3) derart vorgesehen ist, daß aufeinanderfolgende Auslenkungen bei unterschiedlichen Anpreßdrücken bzw. Auslenkkräften erfolgen. Toothbrush according to one or more of claims 1 to 3, characterized in that by coupling two or more different deflection profiles (4) on the brush shaft (1) a stepwise deflection of the brush head (3) is provided in such a way that successive deflections at different contact pressures or deflection forces respectively.
PCT/EP1988/000137 1987-02-27 1988-02-25 Toothbrush WO1988006417A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO884777A NO167492C (en) 1987-02-27 1988-10-26 TANNBOERSTE.
KR1019880701371A KR890700326A (en) 1987-02-27 1988-10-27 toothbrush

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3706345.6 1987-02-27
DE3706345 1987-02-27

Publications (1)

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WO1988006417A1 true WO1988006417A1 (en) 1988-09-07

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EP (1) EP0281017B1 (en)
JP (1) JPH02501446A (en)
KR (1) KR890700326A (en)
AT (1) ATE80982T1 (en)
AU (1) AU618528B2 (en)
DE (1) DE3874912D1 (en)
ES (1) ES2035121T3 (en)
GR (1) GR3006252T3 (en)
WO (1) WO1988006417A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054154A (en) * 1989-07-15 1991-10-08 M & C Schiffer Gmbh Toothbrush with flexible head
US5191671A (en) * 1991-08-22 1993-03-09 Rudnick Martin E Toothbrush handle
US5323504A (en) * 1988-11-04 1994-06-28 Mccusker Robert M Deformable toothbrush
WO1997019616A1 (en) * 1995-11-29 1997-06-05 Radius Inc. Toothbrush with flexible neck and method for making the same
US5735012A (en) * 1997-04-01 1998-04-07 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Resiliently flexible toothbrush
US6003189A (en) * 1995-02-01 1999-12-21 Falleiros; Alexandre Petrocini Toothbrush
US6108849A (en) * 1995-09-08 2000-08-29 Coronet-Werke Gmbh Toothbrush having a resilient neck and conical brush bundles
WO2006073218A1 (en) * 2005-01-04 2006-07-13 Jong Sung Kim Tooth brush
US8631534B2 (en) 2006-06-08 2014-01-21 Dr. Fresh, Llc Toothbrush
CN110403345A (en) * 2016-08-30 2019-11-05 北京易得道科技有限公司 Toothbrush system

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US5146645A (en) * 1991-03-01 1992-09-15 The Procter & Gamble Company Toothbrush employing resiliently buckling arch to indicate excessive brushing pressure
GB9223214D0 (en) * 1992-11-05 1992-12-16 Sanderson J & W Ltd Toothbrush
DE4242355C1 (en) * 1992-12-15 1994-02-17 Johnson & Johnson Ag Spreitenb toothbrush
BE1007374A3 (en) * 1993-07-30 1995-05-30 Philips Electronics Nv Toothbrush.
IT1271530B (en) * 1993-10-14 1997-05-30 Ponzini Spa TOOTHBRUSH WITH VARIABLE ANGLE HEAD
DE4435888A1 (en) 1994-10-07 1996-04-11 Coronet Werke Gmbh toothbrush
GB2299264B (en) * 1995-03-27 1999-10-20 Naresh Gathani A toothbrush to reduce tooth abrasion and improve efficiency
DE19643019C1 (en) * 1996-10-18 1998-04-16 Georg Wiegner toothbrush
JP4118067B2 (en) * 2002-03-18 2008-07-16 範人 中原 Proper pressure toothbrush
NO322158B1 (en) * 2002-07-26 2006-08-21 Jordan As Toothbrush
GB2413268A (en) * 2004-04-21 2005-10-26 Igor Vasilev Toothbrush with pivotal force sensing mechanism
AU2008100507A4 (en) * 2008-06-03 2008-07-03 McCusker, Robert Martin Mr Toothbrush
US8496670B2 (en) 2008-09-01 2013-07-30 Koninklijke Philips N.V. Tilting prevention for depilating devices
EP2361528A1 (en) * 2010-02-26 2011-08-31 Trisa Holding AG Oral hygiene device, in particular toothbrush, and method for its production
ES2379170B1 (en) 2011-06-17 2012-12-18 Fernando Miñano Fernández BUCO-DENTAL SELF CLEANER BY MASCADA.
TW202034818A (en) * 2018-12-27 2020-10-01 日商獅子股份有限公司 toothbrush

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US2083217A (en) * 1934-07-14 1937-06-08 Edwin I Brothers Prophylactic device for the oral cavity
FR1247433A (en) * 1959-10-21 1960-12-02 Improvements to toothbrushes
US4520526A (en) * 1984-06-22 1985-06-04 Peters Charles W Resiliently flexible toothbrush

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2083217A (en) * 1934-07-14 1937-06-08 Edwin I Brothers Prophylactic device for the oral cavity
FR1247433A (en) * 1959-10-21 1960-12-02 Improvements to toothbrushes
US4520526A (en) * 1984-06-22 1985-06-04 Peters Charles W Resiliently flexible toothbrush

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323504A (en) * 1988-11-04 1994-06-28 Mccusker Robert M Deformable toothbrush
US5054154A (en) * 1989-07-15 1991-10-08 M & C Schiffer Gmbh Toothbrush with flexible head
US5191671A (en) * 1991-08-22 1993-03-09 Rudnick Martin E Toothbrush handle
US6003189A (en) * 1995-02-01 1999-12-21 Falleiros; Alexandre Petrocini Toothbrush
US6108849A (en) * 1995-09-08 2000-08-29 Coronet-Werke Gmbh Toothbrush having a resilient neck and conical brush bundles
WO1997019616A1 (en) * 1995-11-29 1997-06-05 Radius Inc. Toothbrush with flexible neck and method for making the same
US5765254A (en) * 1995-11-29 1998-06-16 Radius Inc. Toothbrush with flexible neck
US5735012A (en) * 1997-04-01 1998-04-07 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Resiliently flexible toothbrush
WO2006073218A1 (en) * 2005-01-04 2006-07-13 Jong Sung Kim Tooth brush
US8631534B2 (en) 2006-06-08 2014-01-21 Dr. Fresh, Llc Toothbrush
CN110403345A (en) * 2016-08-30 2019-11-05 北京易得道科技有限公司 Toothbrush system

Also Published As

Publication number Publication date
AU618528B2 (en) 1992-01-02
EP0281017B1 (en) 1992-09-30
KR890700326A (en) 1989-04-24
ATE80982T1 (en) 1992-10-15
AU1366588A (en) 1988-09-26
ES2035121T3 (en) 1993-04-16
JPH02501446A (en) 1990-05-24
DE3874912D1 (en) 1992-11-05
GR3006252T3 (en) 1993-06-21
EP0281017A1 (en) 1988-09-07

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