EP0291522B1 - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
EP0291522B1
EP0291522B1 EP87907737A EP87907737A EP0291522B1 EP 0291522 B1 EP0291522 B1 EP 0291522B1 EP 87907737 A EP87907737 A EP 87907737A EP 87907737 A EP87907737 A EP 87907737A EP 0291522 B1 EP0291522 B1 EP 0291522B1
Authority
EP
European Patent Office
Prior art keywords
handle
bristle
plane
brush head
fact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87907737A
Other languages
German (de)
French (fr)
Other versions
EP0291522A1 (en
Inventor
Windi Winderlich
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.)
Colgate Palmolive Co
Original Assignee
Menadier Heilmittel GmbH
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 Menadier Heilmittel GmbH filed Critical Menadier Heilmittel GmbH
Priority to AT87907737T priority Critical patent/ATE69543T1/en
Publication of EP0291522A1 publication Critical patent/EP0291522A1/en
Application granted granted Critical
Publication of EP0291522B1 publication Critical patent/EP0291522B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • 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 according to the preamble of the main claim.
  • the toothbrushes In order to avoid damage to the tooth enamel in the tooth neck area and the gingival margin when brushing the teeth, the toothbrushes have either been provided with more resilient or softer bristles, but their overall cleaning effect is inadequate, or an elastic connecting part has been provided between the brush head and the handle in accordance with US Pat. No. 4,520,526. which was designed so that the brush head diverts relative to the handle in a plane perpendicular to the bristle bed under load, namely with a load of 100 to 300 g by about 6 mm or with a higher load by a larger amount corresponding to an angle up to about 30 °.
  • the connecting part between the brush head and the handle has either been reduced in thickness with the same width, or a slot or elongated opening in the connecting part a plane arranged parallel to the bristle bed is provided so as to allow evasion in a plane existing perpendicular to the bristle bed.
  • Toothbrushes with a slotted or perforated connecting part can only be produced by spraying in relation to conventional toothbrushes in a relatively complex manner; furthermore, toothpaste residues accumulate in the slot, which after a week lead to unsanitary deposits and dirt accumulation or can only be cleaned in a laborious manner.
  • such toothbrushes are not suitable for modern toothbrushing techniques.
  • the invention is based on the object of proposing a toothbrush which, even when the bristles are inclined in the direction of the gingival margin, compensates for force peaks when the brush head is loaded and thus in particular for the above-mentioned modern toothbrushing technique but also for the vibrating technique according to Dr. Bass or according to the Charters technique.
  • the bristles penetrate into the interdental niches and into the sulcus by means of the small circular movement and contribute to a good cleaning of particularly endangered denture sections.
  • the toothbrushes provided according to the invention are particularly advantageous because they compensate for the force peaks at a load of 300 to 500 pond or more through the bristle part which elastically deflects in each plane and ensure a much more even force distribution.
  • the toothbrush according to the invention is advantageous because it compensates for a given sequence of movements designed.
  • the toothbrush according to the invention is easy to manufacture by injection molding and can be permanently loaded in the connecting part between the bristle bed and the handle.
  • the toothbrush consists of a brush head 2, which is connected to the handle 4 via the flexible connecting piece 6. Because the connecting part 6 has a smaller cross-section than the handle and the latter preferably has a square cross-section with drawn-in sides, the handle 4 is rigid, so that the flexibility or the evasion ⁇ . ⁇ of the brush head is achieved by the elastic intermediate part.
  • the deviation in the respective plane is determined as the distance that the middle part of the bristle bed has from the starting position. It is in a range of about 0.6 to 2.5 cm and preferably 1.0 to 2.0 cm.
  • the special cross-sectional shape of the handle 4 according to FIGS. 3a and 3b is particularly advantageous in the case of a resilient brush head in order to keep the brush head in the desired position and is ergonomically expedient, a cross-section according to FIG Bristle surface is made possible, both according to Dr. Bass as well as the Stillmann technique is required.
  • the outside bristle bundle 3 is colored differently from the other bristle bundles, in order to make it particularly clear to children, when brushing their teeth, to avoid evading, at least in the plane lying parallel to the bristle bed.

Landscapes

  • Brushes (AREA)

Abstract

Toothbrush comprising a bristle head (2) provided with bundles of bristles which are set perpendicularly into a flat bristle mounting, and a handle (4), connected to the head (2) by an elastically deformable connecting section, which permits the head (2) to bend under pressure in a plane perpendicular to the bristle mounting. The brush is characterized by the fact that the flexible connecting section (6) is so formed that the head (2), when subjected to a pressure of 300 g, is deflected laterally between 0.6 and 2.5 cm in any plane in relation to the handle (4).

Description

Die Erfindung betrifft eine Zahnbürste gemäß Oberbegriff des Hauptanspruchs.The invention relates to a toothbrush according to the preamble of the main claim.

Um beim Zähneputzen eine Schädigung des Zahnschmelzes im Zahnhalsbereich und des Gingivasaumes zu vermeiden, hat man die Zahnbürsten entweder mit nachgiebigeren oder weicheren Borsten versehen, die in ihrer Gesamtreinigungswirkung allerdings unzureichend sind, oder gemäß US-PS 4,520,526 zwischen Bürstenkopf und Handgriff einen elastischen Verbindungsteil vorgesehen, der so ausgebildet war, daß der Bürstenkopf gegenüber dem Handgriff in einer senkrecht zu dem Borstenbett liegenden Ebene bei Belastung ausweicht, und zwar bei Belastung von 100 bis 300 g um etwa 6 mm bzw. bei höherer Belastung um einen größeren Betrag entsprechend einem Winkel bis zu etwa 30°. Um diese Biegsamkeit in der senkrechten Ebene zu ermöglichen und insbesondere um eine völlige Steifigkeit in der zum Bürstenbett waagerechten Ebene zu erhalten, hat man den Verbindungsteil zwischen Bürstenkopf und Handgriff entweder in seiner Dicke bei gleichbleibender Breitenausdehnung verringert oder in dem Verbindungsteil einen Schlitz oder längliche Durchbrechung in einer parallel zu dem Borstenbett angeordneten Ebene vorgesehen, um so ein Ausweichen in einer senkrecht zum Borstenbett bestehenden Ebene zu ermöglichen.In order to avoid damage to the tooth enamel in the tooth neck area and the gingival margin when brushing the teeth, the toothbrushes have either been provided with more resilient or softer bristles, but their overall cleaning effect is inadequate, or an elastic connecting part has been provided between the brush head and the handle in accordance with US Pat. No. 4,520,526. which was designed so that the brush head diverts relative to the handle in a plane perpendicular to the bristle bed under load, namely with a load of 100 to 300 g by about 6 mm or with a higher load by a larger amount corresponding to an angle up to about 30 °. In order to enable this flexibility in the vertical plane and in particular in order to maintain complete rigidity in the plane horizontal to the brush bed, the connecting part between the brush head and the handle has either been reduced in thickness with the same width, or a slot or elongated opening in the connecting part a plane arranged parallel to the bristle bed is provided so as to allow evasion in a plane existing perpendicular to the bristle bed.

Derartige Zahnbürsten mit einem in der Dicke des Verbindungsteiles verringerten Bereich sind für längeren Gebrauch ungeeignet, weil dieser Bereich leicht bricht; Zahnbürsten mit einem geschlitzten oder durchbrochenen Verbindungsteil lassen sich spritztechnisch gegenüber herkömmlichen Zahnbürsten nur verhaltnismäßig aufwendig hertellen; ferner sammeln sich in dem Schlitz Zahnpastareste an, die bereits nach einer Woche zu ungygienischen Ablagerungen und Schmutzansammlungen führen bzw. nur auf umständliche Weise zu reinigen sind. Darüber hinaus sind derartige Zahnbürsten für die modernen Zahnputztechniken nicht geeignet.Such toothbrushes with an area reduced in thickness of the connecting part are unsuitable for prolonged use because this area breaks easily; Toothbrushes with a slotted or perforated connecting part can only be produced by spraying in relation to conventional toothbrushes in a relatively complex manner; furthermore, toothpaste residues accumulate in the slot, which after a week lead to unsanitary deposits and dirt accumulation or can only be cleaned in a laborious manner. In addition, such toothbrushes are not suitable for modern toothbrushing techniques.

In der moderen Zahnheilkunde wird empfohlen, den Burstenkopf mit den die Arbeitsflächen bildenden Borstenenden in der Nähe des Gingivasaumes auf der Zahnoberfläche anzusetzen und bei Schrägstellung der Borsten in Richtung auf den Gingivasaum eine im wesentlichen Kleinstkeise vibrierend ausführende aufund abgerichtete Bürstenbewegung durchzuführen, um so Ablagerungen im Zahnzwischenraum zu vermeiden und Entzündgen des Gingivasaumepithels vorzubeugen.In modern dentistry, it is recommended to place the brush head with the bristle ends forming the working surfaces near the gingival margin on the tooth surface and, when the bristles are inclined towards the gingival margin, to perform a brushing motion that is essentially vibrating and performing a very small amount of movement, so as to create deposits in the interdental space to avoid and prevent inflammation of the gingival epithelium.

Der Erfindung liegt die Aufgabe zugrunde, eine Zahnbürste vorzuschlagen, die auch bei Schrägstellung der Borsten in Richtung Gingivasaum Kraftspitzen bei Belastung des Bürstenkopfes ausgleicht und somit insbesondere für die oben erwähnte moderne Zahnputztechnik aber auch für die Rütteltechnik nach Dr. Bass oder nach Charters-Technik geeignet ist.The invention is based on the object of proposing a toothbrush which, even when the bristles are inclined in the direction of the gingival margin, compensates for force peaks when the brush head is loaded and thus in particular for the above-mentioned modern toothbrushing technique but also for the vibrating technique according to Dr. Bass or according to the Charters technique.

Zur lösung dieser Aufgabe wird daher eine Zahnbürste gemäß Kennzeichen des Hauptanspruchs vorgeschlagen, wobei besonders geeignete Ausführungsformen in den Unteransprüchen erwähnt sind.To achieve this object, a toothbrush according to the characterizing part of the main claim is therefore proposed, particularly suitable embodiments being mentioned in the subclaims.

Überraschenderweise hat sich gezeigt, daß mit einem in jeder Ebene flexibel ausweichenden Bürstenkopf insbesondere bei einer Flexibilität entsprechend einem Ausweichgrad von 1 bis 2 cm bzw. etwa 20° eine überaus gleichmäßige Säuberung der Zähne ohne Irritationen des Gingivasaumes ermöglicht wird und daß dem Benutzer die Durchführung einer gering kreisförmigen Bewegung erleichtert wird und ferner der für Rechts- bzw. Links-Händer weniger gründlich geputzte Bereich des rechten bzw. linken Eckzahnbereichs sich leichter und demzufolge auch gründlicher erreichen läßt; gleiches gilt für den distalen Bereich der jeweilig letzten Molaren sowie für die Lingualflächen aller Zähne unter besonderer Berücksichtigung des extrem schwer zu erreichenden Unterkiefer-Frontzahnbereiches, der besonders zahnsteinanfällig ist.Surprisingly, it has been shown that with a brush head that is flexible in every plane, in particular with a flexibility corresponding to a degree of evasion of 1 to 2 cm or approximately 20 °, an extremely uniform cleaning of the teeth is possible without irritation of the gingival margin and that the user can carry out a slight circular movement is facilitated and furthermore the area of the right and left canine area, which is less thoroughly cleaned for right-handers and left-handers, can be reached more easily and consequently also more thoroughly; The same applies to the distal area of the last molars as well as to the lingual surfaces of all teeth, with special attention to the extremely difficult to reach lower jaw front area, which is particularly susceptible to tartar.

Durch den insbesondere durch die bevorzugte Handgriffausbildung erleichterten Anstellwinkel der Borsten von etwa 45° dringen die Borsten vermittels der kleinen kreisenden Bewegung in die interdentalen Nischen und in den Sulkus ein und tragen zu einer guten Reinigung besonders gefährdeter Gebißabschnitte bei.As a result of the angle of attack of the bristles of approximately 45 °, which is facilitated in particular by the preferred handle design, the bristles penetrate into the interdental niches and into the sulcus by means of the small circular movement and contribute to a good cleaning of particularly endangered denture sections.

Auch bei der neuerdings vorgeschlagenen Rütteltechnik nach Dr. Bass sind die erfindungsgemäß vorgesehenen Zahnbürsten besonders vorteilhaft, weil sie durch den in jeder Ebene elastisch ausweichenden Borstenteil die Kraftspitzen bei einer Belastung von 300 bis 500 pond oder nehr ausgleichen und für eine sehr viel gleichmäßigere Kraftverteilung sorgen.Also with the recently proposed vibration technology according to Dr. Bass, the toothbrushes provided according to the invention are particularly advantageous because they compensate for the force peaks at a load of 300 to 500 pond or more through the bristle part which elastically deflects in each plane and ensure a much more even force distribution.

Selbst bei der Stillmann-Technik, die eine vertikalrotatorische Bewegung der Borstenarbeitsfläche von der Gingiva zum Zahn (Rot/Weiß-Verfahren) bei gleichzeitiger Drehung der Bürste um ihre Längsachse fordert, zeigt sich die erfindungsgemäße Zahnbürste von Vorteil, da sie einen jeweils vorgegebenen Bewegungsablauf ausgleichend gestaltet.Even with the Stillmann technique, which requires a vertical rotary movement of the bristle work surface from the gingiva to the tooth (red / white method) while simultaneously rotating the brush about its longitudinal axis, the toothbrush according to the invention is advantageous because it compensates for a given sequence of movements designed.

Die erfindungsgemäße Zahnbürste läßt sich spritztechnisch einfach herstellen und ist im Verbindungsteil zwischen Borstenbett und Handgriff dauerhaft belastbar.The toothbrush according to the invention is easy to manufacture by injection molding and can be permanently loaded in the connecting part between the bristle bed and the handle.

Im folgenden soll die Erfindung anhand der beiliegenden Zeichnung näher erläutert werden. Es zeigen:

  • Figur 1: eine Seitenansicht der erfindungsgemäßen Zahnbürste,
  • Figur 2: eine Draufsicht auf die erfindungsgemäße Zahnbürste,
  • Figur 3a und b: jeweils einen Schnitt in der Ebene III-III durch den Handgriff der erfindungsgemäßen Zahnbürste.
The invention will be explained in more detail below with reference to the accompanying drawing. Show it:
  • FIG. 1: a side view of the toothbrush according to the invention,
  • FIG. 2: a top view of the toothbrush according to the invention,
  • 3a and b: a section in the plane III-III through the handle of the toothbrush according to the invention.

Die Zahnbürste besteht aus einem Bürstenkopf 2, der über das flexible Verbindungsstück 6 mit dem Handgriff 4 verbunden ist. Dadurch, daß der Verbindungsteil 6 einen geringeren Querschnitt als der Handgriff hat und letzterer vorzugsweise einen quadratischen Querschnitt mit eingezogenen Seiten besitzt, ist der Handgriff 4 starr, so daß die Flexibilität bzw. das Ausweichen α.β des Bürstenkopfes durch den elastischen Zwischenteil erreicht wird. Die Ausweichung wird in der jeweiligen Ebene als der Abstand bestimmt, den der Mittelteil des Borstenbettes gegenüber der Ausgangslage hat. Sie liegt in einem Bereich von etwa 0,6 bis 2,5 cm und vorzugsweise bei 1,0 bis 2,0 cm.The toothbrush consists of a brush head 2, which is connected to the handle 4 via the flexible connecting piece 6. Because the connecting part 6 has a smaller cross-section than the handle and the latter preferably has a square cross-section with drawn-in sides, the handle 4 is rigid, so that the flexibility or the evasion α.β of the brush head is achieved by the elastic intermediate part. The deviation in the respective plane is determined as the distance that the middle part of the bristle bed has from the starting position. It is in a range of about 0.6 to 2.5 cm and preferably 1.0 to 2.0 cm.

Die besondere Querschnittform des Handgriffs 4 gemäß Figur 3a bzw. 3b ist bei einem federnden Bürstenkopf von besonderem Vorteil, um den Bürstenkopf in der gewunschten Stellung und ergonometrisch zweckmäßig zu halten, wobei ein Querschnitt gemäß Figur 3b deswegen bevorzugt wird, weil dadurch ein schräges Aufsetzen der Borstenfläche ermöglicht wird, das sowohl nach Rütteltechnik von Dr. Bass als auch nach der Stillmann-Technik gefordert wird.The special cross-sectional shape of the handle 4 according to FIGS. 3a and 3b is particularly advantageous in the case of a resilient brush head in order to keep the brush head in the desired position and is ergonomically expedient, a cross-section according to FIG Bristle surface is made possible, both according to Dr. Bass as well as the Stillmann technique is required.

Bei einer weiteren bevorzugten Ausführungsform ist das außenstehende Borstenbündel 3 gegenüber den übrigen Borstenbündeln anders gefärbt, um insbesondere Kindern beim Zähneputzen das Ausweichen wenigstens in der parallel zum Borstenbett liegenden Ebene anregend zu verdeutlichen.In a further preferred embodiment, the outside bristle bundle 3 is colored differently from the other bristle bundles, in order to make it particularly clear to children, when brushing their teeth, to avoid evading, at least in the plane lying parallel to the bristle bed.

Claims (3)

1. A toothbrush consisting of a brush head (2) with bristle bundles arranged perpendicular to a flat bristle mounting and to a handle (4) which in its axial length merges into an elastically deformable coupling component (6) having a smaller cross section than the handle which in turn merges into the bristle mounting and exhibits an elasticity such that under a pressure of 300g the brush head bends to 0.6 to 2.5 cm perpendicular to the plane of the bristle mounting, characterised by the fact that the elastic coupling component (6) exhibits a round cross section so that the brush head, under pressure, bends laterally in all planes relative to the handle (4).
2. A toothbrush according to claim 1, characterised by the fact that one or more of the bristle bundles (3) arranged at the remote end of the bristle mounting are coloured differently from the bristle bundles lying adjacent to the handle (4).
3. A toothbrush according to claims 1 and 2, characterised by the fact that the cross section of the handle (4) is formed in the shape of a square with concave sides and that the planes connecting the corner points of the square lie parallel and perpendicular to the plane of the bristle mounting (Figure 3a) or exhibit an angle of 45 degrees to that plane (Figure 3b).
EP87907737A 1986-11-29 1987-11-25 Toothbrush Expired - Lifetime EP0291522B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87907737T ATE69543T1 (en) 1986-11-29 1987-11-25 TOOTHBRUSH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3640898 1986-11-29
DE3640898A DE3640898C1 (en) 1986-11-29 1986-11-29 Toothbrush

Publications (2)

Publication Number Publication Date
EP0291522A1 EP0291522A1 (en) 1988-11-23
EP0291522B1 true EP0291522B1 (en) 1991-11-21

Family

ID=6315138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87907737A Expired - Lifetime EP0291522B1 (en) 1986-11-29 1987-11-25 Toothbrush

Country Status (6)

Country Link
EP (1) EP0291522B1 (en)
JP (1) JPH01501448A (en)
AT (1) ATE69543T1 (en)
DE (2) DE3640898C1 (en)
DK (1) DK171071B1 (en)
WO (1) WO1988003772A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8807673D0 (en) * 1988-03-31 1988-05-05 Lingner & Fischer Gmbh Novel article
AU582098B3 (en) * 1988-11-04 1989-02-10 Robert Martin McCusker Toothbrush with deformable handle
DE3923495C1 (en) * 1989-07-15 1991-01-24 M + C Schiffer Gmbh, 5466 Neustadt, De
US5138737A (en) * 1989-10-16 1992-08-18 Thomas Martha M Toothbrush
GB9106511D0 (en) 1991-03-27 1991-05-15 Lingner & Fischer Gmbh Novel article
DE69230340T2 (en) 1991-03-27 2000-03-30 Smithkline Beecham Consumer Healthcare Gmbh Toothbrush with springy connection zone between brush head and handle
JPH05111409A (en) * 1991-10-19 1993-05-07 Hiroshi Fukuba Toothbrush
DE4211811A1 (en) * 1992-04-08 1993-10-14 Jovica Vukosavljevic Toothbrush with indicator for cleaning pressure on teeth - has brush head, which turns, when contact pressures exceeds certain level
DE4223697C2 (en) * 1992-07-18 1993-10-07 Jovica Vukosavljevic toothbrush
GB9223214D0 (en) * 1992-11-05 1992-12-16 Sanderson J & W Ltd Toothbrush
GB2282959B (en) * 1993-10-19 1998-06-17 Addis Ltd Improvements in or relating to toothbrushes
DE4442001C2 (en) * 1994-11-28 1998-04-16 Hahn Rainer Device for cleaning tooth or denture surfaces
DE19530057A1 (en) * 1995-08-16 1997-02-20 Coronet Werke Gmbh Brush and process for making it
US5765254A (en) * 1995-11-29 1998-06-16 Radius Inc. Toothbrush with flexible neck
DE19643019C1 (en) * 1996-10-18 1998-04-16 Georg Wiegner toothbrush
US5735012A (en) * 1997-04-01 1998-04-07 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Resiliently flexible toothbrush
WO1999017915A1 (en) 1997-10-06 1999-04-15 Colgate-Palmolive Company Multi-component injection molded toothbrush and manufacture thereof
DE29820734U1 (en) * 1998-11-20 2000-03-23 M + C Schiffer GmbH, 53577 Neustadt Brush, especially toothbrush
DE10003536A1 (en) * 2000-01-27 2001-08-09 Meyer Rolf Toothbrush has head which is at right angles to handle and which is slightly curved and has lines of weakness across it to assist bending
JP4522803B2 (en) * 2004-09-16 2010-08-11 株式会社ジーシー toothbrush
EP2124674B1 (en) 2007-02-02 2018-03-14 The Gillette Company LLC Oral hygiene implements having flexible elements, and methods of making the same
USD628389S1 (en) 2009-12-23 2010-12-07 Colgate-Palmolive Company Tissue cleaner
DE102011012536A1 (en) 2011-02-26 2012-08-30 Sensoom Gmbh Damping system for filling toothbrush, has disc-shaped segments with preset geometry and material thickness that are formed around inner region of connecting portion at specific angle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1327807A (en) * 1918-10-26 1920-01-13 Paul B Burleigh Toothbrush
US2304319A (en) * 1940-05-31 1942-12-08 Bristol Myers Co Toothbrush
US4280518A (en) * 1979-04-09 1981-07-28 Gambaro Susan M Tooth cleaning implement
US4373541A (en) * 1979-08-07 1983-02-15 Nishioka Gary J Bristle structure for brushes and brush assembly
AR220648A1 (en) * 1980-02-22 1980-11-14 Rosario M TOOTHBRUSH
US4520526A (en) * 1984-06-22 1985-06-04 Peters Charles W Resiliently flexible toothbrush

Also Published As

Publication number Publication date
WO1988003772A1 (en) 1988-06-02
DE3640898C1 (en) 1988-01-21
DE3774702D1 (en) 1992-01-02
DK423288D0 (en) 1988-07-28
DK423288A (en) 1988-07-28
JPH01501448A (en) 1989-05-25
EP0291522A1 (en) 1988-11-23
DK171071B1 (en) 1996-05-28
ATE69543T1 (en) 1991-12-15

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