EP0648448B1 - Brosse à dents dont la tête à un angle de pliage variable - Google Patents
Brosse à dents dont la tête à un angle de pliage variable Download PDFInfo
- Publication number
- EP0648448B1 EP0648448B1 EP94116102A EP94116102A EP0648448B1 EP 0648448 B1 EP0648448 B1 EP 0648448B1 EP 94116102 A EP94116102 A EP 94116102A EP 94116102 A EP94116102 A EP 94116102A EP 0648448 B1 EP0648448 B1 EP 0648448B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- head
- handle
- brush
- bridge
- pieces
- 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
Links
Images
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
- A46B5/007—Inserts made of different material, e.g. springs, plates
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
- A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
- A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
Definitions
- the present invention relates to a toothbrush provided with a bristle-carrying head mounted on the handle via a hinge which is flexible, i.e. capable of assuming any angle during use.
- Toothbrushes normally comprise a substantially straight handle part which extends into a head part which is also straight and on which the cleaning bristles are mounted. In the most well-known arrangements the head part is aligned with the handle part. This arrangement has been adopted with satisfactory results for very many years, despite the fact that it is not particularly suitable - since it creates a few problems during use - for cleaning the deep-lying zones located behind the molars of the teeth.
- toothbrushes In order to overcome this problem it is known that for some time so called “angular " toothbrushes have been available commercially, said toothbrushes having in fact a head which is bent at an angle with respect to the axes of the handle. This angle - which to a certain extent imitates the shape of a dental mirror - is intended to facilitate cleaning of the convex parts of the teeth and of the zones located behind the molars and the incisors. These toothbrushes, however, are less suitable for cleaning the front part of the teeth and in fact are generally unsuitable for cleaning the concave zones of the teeth.
- Toothbrushes having the handle, or at least a part of the handle, which is able to flex in the direction of its length. Toothbrushes of this type are described for example in DE-C1-39 23 495, DE-C2-42 23 697, DE-C1-42 22 931, DE-GM-89 03 911 and EP-A2-0.371.293. This flexibility, however, is intended - as clearly stated in DE-C1-39 23 495 - to allow the cleaning pressure on the teeth to be controlled more easily so as avoid damaging the latter.
- the flexing or hinging zone is located at a middle point along the handle and in particular in a zone where the thumb of the hand rests during use, i.e. in a zone situated outside the mouth during use of the brush: only in this way, in fact, is the user able to sense exactly how much the brush is flexing and consequently how great the cleaning pressure is.
- the aim of the present invention is to propose a toothbrush which overcomes the drawbacks of all the known brushes mentioned above and which, in particular, via a structure which is simple and economic to manufacture and practical and perfectly hygienic to use, makes it possible to perform cleaning of any part of the teeth, i.e. both the concave and convex front part and internal parts as well as the deeper-lying parts located behind the molars.
- This aim is achieved via the characteristic features indicated in the characterising part of Claim 1.
- said hinge is formed by an assembly of two flexible, thin, side bridge-pieces, made as one piece with the handle and the head and constituting the main element for joining and connecting together the latter, and by a mass of elastomeric filling material injected into the space between said bridge-pieces and constituting the secondary joining element.
- the brush comprises in a known manner a handle 1 and a head 2 on which the bristles 3 are mounted.
- the head 2 and the handle 1 are made of a relatively rigid plastic material and are joined together via a flexible hinge.
- the axis of this hinge is arranged in a plane parallel to the plane of the head on which the bristles are fixed and is oriented perpendicularly with respect to the longitudinal axis of the brush. In this way the head has in practice a variable angle with respect to the handle.
- Such a flexible hinge consists, according to the preferred embodiment shown in the drawings, of an assembly of two moderately flexible, thin, side bridge-pieces 1a - formed as one piece with the handle 1 and the head 2 and constituting the main element for joining and connecting together the latter - and of a mass 4 of elastomeric filling material injected into the space between the bridge-pieces (indicated by a broken line in the drawings).
- the assembly consisting of handle, head and bridge-pieces is made of a relatively rigid plastic material; consequently, the handle and the head are rigid and only the bridge-pieces, owing to their thin cross-section, are flexible. This flexibility is then controlled via the greater or lesser yielding capability of the mass 4 of elastomeric filling material.
- the head 2 of the brush is able to assume different angles I, II, III, with respect to the handle, during use, so as to facilitate cleaning of both the concave surfaces and convex surfaces of the teeth.
- the brush according to the invention is particularly suitable also for cleaning of the deep-lying zones located behind the molars.
- the handle 1 and the head 2, as well as the bridge-pieces 1a are made of a material having a chemical affinity with the material constituting the filling mass 4, such that it is possible to provide a lasting and stable bond between these elements by means of simple two-stage injection moulding, without the addition of any binder.
- a material having a chemical affinity with the material constituting the filling mass 4 such that it is possible to provide a lasting and stable bond between these elements by means of simple two-stage injection moulding, without the addition of any binder.
- polypropylene for the handle part 1, head 2 and bridge-pieces 1a
- the filling mass 4 will consist of a polyolefin-based elastomeric material.
- suitable materials may readily occur to a person skilled in the art.
- the hardness of the elastomeric material of the mass 4 it will be possible to grade the rigidity of the "hinge" according to the intended use of the brush (soft, medium or hard; for adults or for children).
Landscapes
- Brushes (AREA)
Claims (4)
- Brosse à dents du type comportant un manche rigide (1) de support et une tête (2) portant des soies sous la forme d'un corps plan duquel les soies (3) font saillie perpendiculairement, ladite tête (2) étant reliée à l'extrémité du manchon (1) par l'intermédiaire d'une articulation flexible, qui est formée en partie d'une matière plastique semi-rigide, élastique, et en partie d'une matière élastomérique molle,
caractérisée en ce que
ladite articulation flexible est formée par la combinaison dedeux pièces flexibles et minces (1a) formant ponts latéraux, constituées d'une matière plastique semi-rigide, réalisées d'une seule pièce avec le manche (1) et le corps plat de la tête (2) et constituant l'élément principal pour joindre et relier entre eux ces derniers, lesdites deux pièces (1a) formant ponts latéraux déterminant un axe d'oscillation situé dans un plan essentiellement parallèle au plan de la tête portant les soies et orienté perpendiculairement à l'axe longitudinal de la brosse, afin que la tête portant les soies cède élastiquement, sous un angle variable par rapport au manche, autour dudit axe d'articulation, tout en restant parfaitement rigide par rapport au manche dans une direction perpendiculaire audit axe, etune masse (4) de remplissage de matière élastomérique molle injectée dans l'espace entre lesdites pièces formant ponts latéraux en formant une liaison stable avec ces dernières, ladite masse de remplissage constituant un élément de jonction et de liaison secondaire. - Brosse à dents selon la revendication 1, dans laquelle le manche (1), la tête (2) et les pièces (10) formant ponts sont constitués d'une matière ayant une affinité chimique avec la matière constituant la masse (4) de remplissage en matière élastomérique.
- Brosse à dents selon la revendication 1, dans laquelle la rigidité de l'articulation, suivant l'utilisation prévue de la brosse (souple, médium ou dure) ; pour adultes ou pour enfants), est déterminée principalement par la dureté de la matière élastomérique de la masse (4) de remplissage.
- Brosse à dents selon l'une quelconque des revendications 1 à 3, dans laquelle l'ensemble constitué du manche (1), de la tête (2) et des pièces (1a) formant ponts est réalisé en polypropylène, tandis que la masse (4) de remplissage est constituée d'une matière élastomérique à base de polyoléfine.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI932179A IT1271530B (it) | 1993-10-14 | 1993-10-14 | Spazzolino da denti con testa ad angolazione variabile |
ITMI932179 | 1993-10-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0648448A1 EP0648448A1 (fr) | 1995-04-19 |
EP0648448B1 true EP0648448B1 (fr) | 1998-09-02 |
Family
ID=11367028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94116102A Expired - Lifetime EP0648448B1 (fr) | 1993-10-14 | 1994-10-12 | Brosse à dents dont la tête à un angle de pliage variable |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0648448B1 (fr) |
AT (1) | ATE170369T1 (fr) |
DE (1) | DE69412958T2 (fr) |
IT (1) | IT1271530B (fr) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009146498A1 (fr) * | 2008-06-03 | 2009-12-10 | Robert Martin Mccusker | Brosse a dents |
US7721376B2 (en) | 2002-09-20 | 2010-05-25 | Colgate-Palmolive Company | Oral care implement |
US7908699B2 (en) | 2001-07-03 | 2011-03-22 | Colgate-Palmolive Company | Oral care implement |
US7962992B2 (en) | 1996-01-18 | 2011-06-21 | The Procter & Gamble Company | Toothbrush with elastomer filled flexible head |
US8393042B2 (en) | 2002-08-09 | 2013-03-12 | Colgate-Palmolive Company | Oral care implement |
US8561247B2 (en) | 2002-08-09 | 2013-10-22 | Colgate-Palmolive Company | Oral care implement |
US8800093B2 (en) | 2002-08-09 | 2014-08-12 | Colgate-Palmolive Company | Oral care implement |
US8806695B2 (en) | 2002-08-09 | 2014-08-19 | Colgate-Palmolive Company | Oral care implement having flexibly supported cleaning elements extending in opposite directions |
US8857003B2 (en) | 1995-12-29 | 2014-10-14 | Colgate-Palmolive Company | Contouring toothbrush head |
US8876221B2 (en) | 2002-08-09 | 2014-11-04 | Colgate-Palmolive Company | Oral care implement |
US8990996B2 (en) | 2002-08-09 | 2015-03-31 | Colgate-Palmolive Company | Toothbrush |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW384214B (en) * | 1995-12-29 | 2000-03-11 | Colgate Palmolive Co | Contouring toothbrush head |
DE19608226A1 (de) * | 1996-03-04 | 1997-09-11 | Kurt Dipl Ing Kessler | Zahnbürste mit elastisch angelenkten wechselbarem Bürstenkopf |
GB9620092D0 (en) * | 1996-09-26 | 1996-11-13 | Unilever Plc | A brush and method for producing same |
AU737732B2 (en) | 1997-02-24 | 2001-08-30 | Smithkline Beecham Consumer Healthcare Gmbh | Toothbrush |
US5946758A (en) * | 1997-06-24 | 1999-09-07 | Colgate-Palmolive Company | Toothbrush having contouring multi-component head with peel-resistant joint and limited flexibility |
US5863102A (en) * | 1997-06-24 | 1999-01-26 | Colgate-Palmolive Company | Method and apparatus to permit attachment of bristles to toothbrushes with resiliently flexible heads and to thereafter permit the trimming and end rounding of such bristles |
TW200722006A (en) * | 2005-07-27 | 2007-06-16 | Colgate Palmolive Co | Oral care implement comprising an elastomeric polypropylene-ethylene copolymer |
ITMI20061617A1 (it) | 2006-08-10 | 2008-02-11 | Ponzini Spa | Spazzolino da debi con testina oscillante a torsione |
PL2229841T3 (pl) * | 2009-03-18 | 2015-08-31 | Braun Gmbh | Szczotka do zębów |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4520526A (en) * | 1984-06-22 | 1985-06-04 | Peters Charles W | Resiliently flexible toothbrush |
JPH02501446A (ja) * | 1987-02-27 | 1990-05-24 | ブレンダックス ゲゼルシャフト ミット ベシュレンクテル ハフツンク | 歯ブラシ |
DE3923495C1 (fr) * | 1989-07-15 | 1991-01-24 | M + C Schiffer Gmbh, 5466 Neustadt, De |
-
1993
- 1993-10-14 IT ITMI932179A patent/IT1271530B/it active IP Right Grant
-
1994
- 1994-10-12 AT AT94116102T patent/ATE170369T1/de active
- 1994-10-12 DE DE69412958T patent/DE69412958T2/de not_active Expired - Lifetime
- 1994-10-12 EP EP94116102A patent/EP0648448B1/fr not_active Expired - Lifetime
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8857003B2 (en) | 1995-12-29 | 2014-10-14 | Colgate-Palmolive Company | Contouring toothbrush head |
US8327492B2 (en) | 1996-01-18 | 2012-12-11 | The Procter & Gamble Company | Toothbrush with elastomer filled flexible head |
US7962992B2 (en) | 1996-01-18 | 2011-06-21 | The Procter & Gamble Company | Toothbrush with elastomer filled flexible head |
US7908699B2 (en) | 2001-07-03 | 2011-03-22 | Colgate-Palmolive Company | Oral care implement |
US8079110B2 (en) | 2001-07-03 | 2011-12-20 | Colgate-Palmolive Company | Oral care implement |
US8800093B2 (en) | 2002-08-09 | 2014-08-12 | Colgate-Palmolive Company | Oral care implement |
US8393042B2 (en) | 2002-08-09 | 2013-03-12 | Colgate-Palmolive Company | Oral care implement |
US8561247B2 (en) | 2002-08-09 | 2013-10-22 | Colgate-Palmolive Company | Oral care implement |
US8806695B2 (en) | 2002-08-09 | 2014-08-19 | Colgate-Palmolive Company | Oral care implement having flexibly supported cleaning elements extending in opposite directions |
US8839481B2 (en) | 2002-08-09 | 2014-09-23 | Colgate-Palmolive Company | Oral care implement |
US8876221B2 (en) | 2002-08-09 | 2014-11-04 | Colgate-Palmolive Company | Oral care implement |
US8990996B2 (en) | 2002-08-09 | 2015-03-31 | Colgate-Palmolive Company | Toothbrush |
US9167888B2 (en) | 2002-08-09 | 2015-10-27 | Colgate-Palmolive Company | Oral care implement having flexibly supported cleaning elements extending in opposite directions |
US9545148B2 (en) | 2002-08-09 | 2017-01-17 | Colgate-Palmolive Company | Oral care implement |
US7721376B2 (en) | 2002-09-20 | 2010-05-25 | Colgate-Palmolive Company | Oral care implement |
WO2009146498A1 (fr) * | 2008-06-03 | 2009-12-10 | Robert Martin Mccusker | Brosse a dents |
Also Published As
Publication number | Publication date |
---|---|
IT1271530B (it) | 1997-05-30 |
DE69412958D1 (de) | 1998-10-08 |
EP0648448A1 (fr) | 1995-04-19 |
ITMI932179A1 (it) | 1995-04-14 |
DE69412958T2 (de) | 1999-02-11 |
ATE170369T1 (de) | 1998-09-15 |
ITMI932179A0 (it) | 1993-10-14 |
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