EP0901329B1 - Brosse a dents - Google Patents

Brosse a dents Download PDF

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Publication number
EP0901329B1
EP0901329B1 EP97915250A EP97915250A EP0901329B1 EP 0901329 B1 EP0901329 B1 EP 0901329B1 EP 97915250 A EP97915250 A EP 97915250A EP 97915250 A EP97915250 A EP 97915250A EP 0901329 B1 EP0901329 B1 EP 0901329B1
Authority
EP
European Patent Office
Prior art keywords
toothbrush
brush heads
bristle
toothbrush according
bristles
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
EP97915250A
Other languages
German (de)
English (en)
Other versions
EP0901329A1 (fr
Inventor
Alfred Jurt
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.)
Trisa Buerstenfabrik AG Triengen
Original Assignee
Trisa Buerstenfabrik AG Triengen
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 Trisa Buerstenfabrik AG Triengen filed Critical Trisa Buerstenfabrik AG Triengen
Publication of EP0901329A1 publication Critical patent/EP0901329A1/fr
Application granted granted Critical
Publication of EP0901329B1 publication Critical patent/EP0901329B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/06—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
    • A46B7/08—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement as a rotating disc
    • 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 with a handle and a bristle part.
  • the unpublished WO-A-97/07707 which according to prior art Article 54 (3) EPC applies, shows a toothbrush, the bristle part of two towards the toothbrush longitudinal axis arranged one behind the other via a Flexurally elastic joint connection interconnected brush heads having.
  • Each brush head has a bristle holder with protruding bristles.
  • One of the two brush heads essentially has a top view triangular bristle holders with a rounded tip.
  • This brush head is equipped with a central tuft of bristles and with other surrounding this central tuft of bristles in a circular or polygonal shape Tufts of bristles.
  • the other brush head is essentially trapezoidal (Fig. 30).
  • the brush heads are so one across Toothbrush longitudinal axis angled axis that the two brush surfaces each formed by the ends of the bristles are inclined towards each other (Fig. 32).
  • EPC either Pre-published WO 97/24048, which also has a toothbrush with two in Arranged one behind the other in the direction of the longitudinal axis of the toothbrush Has brush heads.
  • Each brush head is through a bristle holder and protruding bristles.
  • the two bristle carriers are flexibly connected to each other and essentially in plan view trapezoidal (Fig. 2).
  • the two brush heads are one Axis running perpendicular to the longitudinal axis of the toothbrush against one another angled so that the two are each formed by the ends of the bristles Brush surfaces are inclined towards each other.
  • the present invention has for its object to a toothbrush create the gently cleaning the teeth and more effective The interdental spaces are also possible than conventional toothbrushes.
  • the bristle part consists of two brush heads that connected to each other via a flexible joint connection and so are angled towards each other so that the brush surfaces face each other are inclined, better adaptation of the cleaning effective Total brushing area achieved on the shape of the dentition and the individual teeth. As a result, the tooth surfaces are thoroughly cleaned and on the other hand with the bristles the interdental spaces and also the gum line can be better reached.
  • Round brush heads have that The advantage is that it prompts the user to clean the toothbrush to move in a circle. Such a circular movement contributes more effective teeth cleaning.
  • FIGS A first embodiment of FIGS described toothbrush according to the invention.
  • the toothbrush consists of a handle 1 and a bristle part 2, which is connected to the handle 1 via a neck part 3.
  • the Bristle part 2 which is shown enlarged in Figures 3 and 4, by two round brush heads 4, 5 formed.
  • Each brush head consists of one Bristle carrier 6, from which bristles project to form bristle tufts 7 are summarized and anchored at one end in the bristle carrier 6.
  • the free-standing ends of the bristles form the brush surface 8.
  • the bristle carriers 6 have a flat base surface 9 on. In FIGS. 3 and 4, they are 9 at right angles to this base area extending longitudinal axes of the brush heads 4, 5 with 4a and 5a respectively.
  • the two brush heads 4, 5 are in the direction of the longitudinal axis A Toothbrush (Fig. 2 and 4) seen one behind the other. How special 3, the two brush heads 4, 5 are approximately one Axis B perpendicular to the longitudinal axis A of the toothbrush (Fig. 4) angled towards each other by the angle ⁇ , in such a way that the Brush surfaces 8 of the two brush heads 4, 5 are inclined towards each other. In other words, the two longitudinal axes 4a, 5a of the brush heads run 4, 5 in the illustration according to FIG. 3 viewed upwards together.
  • the angle ⁇ is preferably between approximately 2 ° and 10 °, but can are between about 1 ° and 45 °.
  • the bristles are at their free ends cut so that a concave arch can be seen in the side view Brush surface 8 is created.
  • the curvature or curvature runs in the direction of the Longitudinal toothbrush axis A.
  • the brushing surfaces 8 are preferably by the Shell surface of a cylinder or another surface of revolution is formed, wherein whose axis of rotation is perpendicular to the longitudinal axis A of the toothbrush.
  • the shape of this concave brush surface 8 corresponds approximately to the tooth shape.
  • the bristle ends can do even better penetrate between the teeth.
  • the back and forth Toothbrush occurs during the cleaning of the teeth because of the concave Curvature of the brush surface 8 depending on the direction of movement other bristles Brush heads 4, 5 in the interdental spaces.
  • the two Brush surfaces 8 defined contour corresponds approximately to the course of the Gumline, i.e. the rounding of the gum line. all of this means that the cleaning effect is increased.
  • Such mobility of the brush heads 4, 5 allows the Teeth cleaning a quick adaptation to the teeth and tooth shape.
  • FIG. 5 and 6 is in a representation corresponding to FIG. 3 shown another embodiment, which is different from the embodiment 1-4 only differs in that the two brush heads 4 and 5 not rigid, but by means of an only schematically indicated elastic bending joint 10 are interconnected.
  • This elastic Hinge 10 which e.g. can have one or more connecting webs, allows the brush head 5 a certain elastic deflection by one Deflection axis perpendicular to the toothbrush longitudinal axis A (not shown).
  • the brush head 5 can therefore be moved from the position shown in FIG Direction of arrow C are deflected, reducing the Inclination angle ⁇ results. 6, the brush head 5 is in shown such a deflected position.
  • the angle ⁇ 'between the both brush heads 4 and 5 is less than the angle ⁇ shown in FIG. 5 in the undeflected state of the brush head 5.
  • This spring-elastic deflectability of the brush head 5 also serves improved adaptation of the brush surfaces 8 to the shape of the dentition and of individual teeth. It also prevents in this way that Cleaning the teeth on which too much pressure is exerted. If the bristle part 2 is pressed too hard on the teeth, the Give up brush head 5 elastically. The deflectability of the brush head 5 also makes it easier to clean the teeth on the inside of the bit (adjustment to the curved course of the bit).
  • the resilient deflection movement of the brush head 5 can by Providing rubber-elastic material in the area of the joint 10 be dampened.
  • the manufacture of such a joint can e.g. in the Two-component injection molding process.
  • FIG. 7 shows a variant of FIG. 3 corresponding representation Toothbrush according to FIGS. 1-4, with 8 instead of curved brushing surfaces Brush surfaces 8 'are provided. Due to the statements in In connection with FIGS. 1-4 it can be easily understood that a slightly less good one for a toothbrush with flat brushing surfaces 8 ' Cleaning effect is to be expected than with a toothbrush Brush surfaces are curved as shown in Fig. 3.
  • the brush heads 4, 5 can also be so be designed so that the bristle carrier 6 including bristles can be replaced.
  • a base body 11 with a holding part 12, which is provided with a circumferential groove 13.
  • the bristle carrier 6 is on its underside provided with a recess 14, the edge of which after inside protruding bead 15 carries.
  • the bristle carrier 6 engages the bead 15 in the groove 13 (FIG. 8).
  • the bead 15 is disengaged from the groove 13 brought, as shown in Fig. 9.
  • the bristle carrier 6 is thus in the Kind of a snap connection with the base body 11 releasably connected. It it goes without saying that other types of detachable connections are also possible are.
  • the bristle carrier 6 with the used bristles can be easily can be replaced with a bristle holder 6 with new bristles without that the whole toothbrush has to be thrown away. This brings for the User obvious economic benefits and helps reduce the waste to be disposed of.
  • Round brush heads 4, 5 with a cylindrical bristle field still have that Advantage that the user is prompted to use the toothbrush Clean moving circularly. Such a circular movement contributes more effective teeth cleaning.
  • top view circular shape e.g. a rectangular in plan view, in particular square or hexagonal shape.

Landscapes

  • Brushes (AREA)

Claims (11)

  1. Brosse à dents comportant un manche (1) et une partie dotée de poils (2), qui présente deux rondes têtes de brosse (4, 5) disposées l'une derrière l'autre dans la direction de l'axe longitudinal de la brosse à dents, reliées l'une à l'autre par une liaison articulée élastique flexible, dont chacune dispose d'un support de poils (6) avec des poils saillants, qui forment chacune un ensemble de poils essentiellement cylindrique, les deux têtes de brosse étant orientées selon un angle tel l'une par rapport à l'autre, autour d'un axe (B) s'étendant transversalement à l'axe longitudinal de la brosse à dents (A), que les deux surfaces de brosse (8, 8') formées chacune par les extrémités des poils sont inclinées l'une vers l'autre.
  2. Brosse à dents selon la revendication 1, caractérisée en ce que les supports de poils (6) présentent une surface de base (9) plane, de laquelle partent les poils, les deux surfaces de base (9) formant l'une avec l'autre un angle (α) dont la grandeur correspond à l'inclinaison des deux têtes de brosse (4, 5).
  3. Brosse à dents selon la revendication 1 ou 2, caractérisée en ce que les têtes de brosse (4, 5) sont inclinées l'une vers l'autre selon un angle (α) d'environ 1 à 45°, de préférence d'environ 2 à 10°.
  4. Brosse à dents selon l'une des revendications 1 à 3, caractérisée en ce que les surfaces de brosse (8) ont une courbure concave dans la direction de l'axe longitudinal (A) de la brosse à dents.
  5. Brosse à dents selon la revendication 4, caractérisée en ce que les surfaces de brosse (8) sont formées par des surfaces de révolution, de préférence des surfaces cylindriques, leur axe de révolution s'étendant transversalement, de préférence sensiblement perpendiculairement, à l'axe longitudinal (A) de la brosse à dents.
  6. Brosse à dents selon l'une des revendications 1 à 5, caractérisée en ce que les têtes de brosse (4, 5) ou leurs supports de poils (6) sont mobiles en rotation autour de leur axe de symétrie (4a, 5a) perpendiculaire à la surface de base (9) des supports de poils (6).
  7. Brosse à dents selon l'une des revendications 1 à 6, caractérisée en ce que les têtes de brosse (4, 5) sont capables de pivoter élastiquement l'une par rapport à l'autre par la liaison articulée (10) élastique flexible autour d'un axe s'étendant transversalement, de préférence perpendiculairement, à l'axe longitudinal (A) de la brosse à dents.
  8. Brosse à dents selon la revendication 7, caractérisée en ce que du matériau élastique caoutchouteux est prévu dans la zone de la liaison articulée (10) pour amortir le mouvement de pivotement élastique.
  9. Brosse à dents selon l'une des revendications 1 à 8, caractérisée en ce que la liaison articulée (10) élastique flexible est constituée par au moins une barrette de liaison.
  10. Brosse à dents selon l'une des revendications 1 à 9, caractérisée en ce que les têtes de brosse (4, 5) ou leurs supports de poils (6), poils compris, sont remplaçables.
  11. Brosse à dents selon l'une des revendications 1 à 10, caractérisée par des supports de poils (6) ronds.
EP97915250A 1996-05-06 1997-04-15 Brosse a dents Expired - Lifetime EP0901329B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH114596 1996-05-06
CH114596 1996-05-06
CH1145/96 1996-05-06
PCT/CH1997/000150 WO1997041753A1 (fr) 1996-05-06 1997-04-15 Brosse a dents

Publications (2)

Publication Number Publication Date
EP0901329A1 EP0901329A1 (fr) 1999-03-17
EP0901329B1 true EP0901329B1 (fr) 2001-12-05

Family

ID=4203543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97915250A Expired - Lifetime EP0901329B1 (fr) 1996-05-06 1997-04-15 Brosse a dents

Country Status (8)

Country Link
EP (1) EP0901329B1 (fr)
AU (1) AU2285497A (fr)
BR (1) BR9708914A (fr)
DE (1) DE59705673D1 (fr)
ID (1) ID17846A (fr)
MY (1) MY132633A (fr)
NO (1) NO985165D0 (fr)
WO (1) WO1997041753A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7392562B2 (en) 2000-09-06 2008-07-01 Braun Gmbh Motor-driven toothbrush and brush head for it

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10208528A1 (de) 2002-02-27 2003-09-11 Braun Gmbh Bürstenkopf für eine Zahnbürste
USD536876S1 (en) 2003-02-03 2007-02-20 Church & Dwight Co., Inc. Head portion of a toothbrush
USD579664S1 (en) * 2005-09-15 2008-11-04 Ranir, Llc Toothbrush
AU308408S (en) * 2006-04-21 2006-08-07 Barros Laboratories Pty Ltd A toothbrush
JP6363505B2 (ja) * 2011-10-27 2018-07-25 グラクソスミスクライン・コンシューマー・ヘルスケア・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コムパニー・コマンディットゲゼルシャフトＧｌａｘｏＳｍｉｔｈＫｌｉｎｅ Ｃｏｎｓｕｍｅｒ Ｈｅａｌｔｈｃａｒｅ ＧｍｂＨ ＆ Ｃｏ． ＫＧ 歯ブラシ
ES1111981Y (es) 2014-05-22 2014-09-03 Ayet Félix Checa Protesis quirurgica para el tratamiento de hernias inguinales
EP3381404B1 (fr) * 2017-03-31 2020-10-14 Trisa Holding AG Brosse de soin corporelle électrique
EP4111907A1 (fr) 2021-06-28 2023-01-04 Universität Basel Tête de nettoyage d'une brosse à dents, agencement et brosse à dents manuelle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608968A (en) * 1982-02-19 1986-09-02 Oral Ease Inc. Gum massaging device with internal dispenser
DE3428860A1 (de) * 1984-08-04 1986-02-13 Horst 4800 Bielefeld Wiethölter Zahnbuerste
GB9106511D0 (en) * 1991-03-27 1991-05-15 Lingner & Fischer Gmbh Novel article
GB9517450D0 (en) * 1995-08-25 1995-10-25 Lingner & Fischer Gmbh Toothbrush
US5373602A (en) * 1993-12-15 1994-12-20 Bang; Kook B. Toothbrush

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7392562B2 (en) 2000-09-06 2008-07-01 Braun Gmbh Motor-driven toothbrush and brush head for it

Also Published As

Publication number Publication date
NO985165L (no) 1998-11-05
EP0901329A1 (fr) 1999-03-17
NO985165D0 (no) 1998-11-05
MY132633A (en) 2007-10-31
DE59705673D1 (de) 2002-01-17
AU2285497A (en) 1997-11-26
ID17846A (id) 1998-01-29
BR9708914A (pt) 1999-08-03
WO1997041753A1 (fr) 1997-11-13

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