EP0901329A1 - Brosse a dents - Google Patents

Brosse a dents

Info

Publication number
EP0901329A1
EP0901329A1 EP97915250A EP97915250A EP0901329A1 EP 0901329 A1 EP0901329 A1 EP 0901329A1 EP 97915250 A EP97915250 A EP 97915250A EP 97915250 A EP97915250 A EP 97915250A EP 0901329 A1 EP0901329 A1 EP 0901329A1
Authority
EP
European Patent Office
Prior art keywords
brush
toothbrush
bristle
brush heads
toothbrush according
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.)
Granted
Application number
EP97915250A
Other languages
German (de)
English (en)
Other versions
EP0901329B1 (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

Links

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.
  • a toothbrush of this type is shown and described in FR-A-2,622,089.
  • the axes of rotation of the two rotatably mounted brush heads are inclined to the side in opposite directions in such a way that the two brush heads are rotated in use by a reciprocating movement of the toothbrush.
  • the present invention has for its object to provide such a toothbrush, which allows a more effective cleaning of the teeth and the interdental spaces than conventional toothbrushes in a gentle manner.
  • the bristle part consists of two (or more) brush heads, which are angled so that the brush surfaces are inclined towards each other, a better adaptation of the cleaning-effective overall brush surface to the shape of the teeth and the individual teeth is achieved. The result of this is that the tooth surfaces are cleaned thoroughly on the one hand and on the other hand the bristles between the teeth and the gum line are better reached.
  • Fig. 7 is a side view of another embodiment of the brush heads.
  • Fig. 8 u. 9 in longitudinal section a brush head with exchangeable bristle holder.
  • FIGS. 1-4 A first embodiment of the toothbrush according to the invention will now be described with reference to FIGS. 1-4.
  • 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 FIGS. 3 and 4, is formed by two round brush heads 4, 5.
  • Each bristle head consists of a bristle carrier 6, from which bristles protrude, which are combined into bristle tufts 7 and anchored in the bristle carrier 6 at one end.
  • the free-standing ends of the bristles form the brush surface 8.
  • the bristle carriers 6 have a flat base surface 9.
  • the longitudinal axes of the brush heads 4, 5 running at right angles to this base area 9 are designated 4a and 5a, respectively.
  • the two brush heads 4, • 5 are arranged one behind the other as seen in the direction of the longitudinal axis A of the toothbrush (FIGS. 2 and 4).
  • the two brush heads 4, 5 are angled relative to one another by an angle ⁇ about an axis B (FIG. 4) which runs approximately at right angles to the longitudinal axis A of the toothbrush, in such a way that the brush surfaces 8 of the two brush heads 4, 5 are inclined towards each other.
  • the two longitudinal axes 4a, 5a of the brush heads 4, 5 converge upwards in the illustration according to FIG. 3.
  • the angle ⁇ is preferably between approximately 2 ° and 10 °, but can be between approximately 1 ° and 45 °.
  • the bristles are cut at their free ends in such a way that a concavely curved brush surface 8 can be seen in the side view.
  • the curvature or curvature runs in the direction of the toothbrush longitudinal axis A.
  • the brushing surfaces 8 are preferably formed by the outer surface of a cylinder or another rotational surface, the axis of rotation of which 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 penetrate the interdental spaces even better.
  • Toothbrush occurs during the cleaning of the teeth because of the concave Curvature of the brush surface 8 depending on the direction of movement different bristles of the brush heads 4, 5 in the interdental spaces. Due to the curved design of the brush surfaces 8, an even more perfect adaptation to the individual shape of the individual teeth is achieved.
  • the contour defined by the two brushing surfaces 8 corresponds approximately to the course of the gum line, ie the rounding of the gum line. All this means that the cleaning effect is increased.
  • the two brush heads 4, 5 may also be useful to mount the two brush heads 4, 5 so that they can rotate about their longitudinal axis 4a or 5a by a certain angle ⁇ .
  • Such mobility of the brush heads 4, 5 allows a quick adaptation to the teeth and tooth shape when cleaning teeth.
  • FIG. 3 another embodiment is shown, which differs from the embodiment according to FIGS. 1-4 only in that the two brush heads 4 and 5 are not rigid, but only by means of one schematically indicated elastic bending joint 10 are interconnected.
  • This elastic joint 10, which can have, for example, one or more connecting webs, allows the brush head 5 to have a certain elastic deflection about a deflection axis (not shown) running at right angles to the longitudinal axis A of the toothbrush.
  • the brush head 5 can therefore be deflected from the position shown in FIG. 5 in the direction of arrow C, which results in a reduction in the inclination angle ⁇ . 6, the brush head 5 is shown in such a deflected position.
  • the angle ⁇ 'between the two 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 to better adapt the brush surfaces 8 to the shape of the dentition and the individual teeth. In this way, it is also avoided that too much pressure is exerted on the teeth when cleaning them. If the bristle part 2 is pressed too hard on the teeth, the brush head 5 can yield elastically. The deflectability of the brush head 5 also facilitates cleaning of the teeth on the inside of the bit (adaptation to the curved course of the bit).
  • the resilient deflection movement of the brush head 5 can be damped by the provision of rubber-elastic material in the area of the joint 10.
  • the manufacture of such a joint can e.g. in the two-component injection molding process.
  • FIG. 7 shows, in a representation corresponding to FIG. 3, a variant of the toothbrush according to FIGS. 1-4, in which flat brush surfaces 8 'are provided instead of curved brush surfaces 8.
  • the brush heads 4, 5 can also be designed such that the bristle carrier 6 together with the bristles can be replaced.
  • a base body 11 is provided with a holding part 12, which is provided with a circumferential groove 13.
  • the bristle carrier 6 is provided on its underside with a recess 14, the edge of which carries an inwardly projecting bead 15.
  • the bead 15 engages in the groove 13 (FIG. 8).
  • the bead 15 is brought out of engagement with the groove 13, as shown in Fig. 9.
  • the bristle carrier 6 is thus releasably connected to the base body 11 in the manner of a snap connection. It goes without saying that other types of detachable connections are also possible.
  • the bristle carrier 6 with the used bristles can thus be exchanged for a bristle carrier 6 with new bristles without any problem, without the entire toothbrush having to be thrown away. This obviously brings economic advantages for the user and contributes to the reduction of the waste to be disposed of.
  • Round brush heads 4, 5 with a cylindrical bristle field also have the advantage that this prompts the user to move the toothbrush in a circular motion when cleaning. Such a circular motion contributes to more effective tooth cleaning.
  • the bristle field a shape other than circular in plan view, e.g. a rectangular, in particular square, or hexagonal shape in plan view.
  • a good cleaning effect is also achieved with a toothbrush with two (or more) brush heads 4, 5 arranged one behind the other in the direction of the toothbrush longitudinal axis A, in which the brush heads 4, 5 are not angled toward one another as shown in the figures, i.e. in which, in the case of flat base surfaces 9 of the bristle carriers, these base surfaces 9 lie in the same plane or in mutually parallel planes.
  • the brush heads 4, 5 and their parts are preferably designed as described with reference to the figures and defined in claims 4-11.

Landscapes

  • Brushes (AREA)

Abstract

La partie portant les soies (2) de la brosse à dents, qui est reliée à un manche comporte deux têtes de brossage (4, 5) placées l'une derrière l'autre dans le sens longitudinal de la brosse à dents. Chaque tête de brossage comporte un porte-soies (6) muni de soies en saillie de celui-ci. Les deux têtes de brossage (4, 5) sont coudées l'une par rapport à l'autre autour d'un axe transversal à l'axe longitudinal de la brosse à dents, les deux surfaces de la brosse (8) étant inclinées l'une par rapport à l'autre. Cette configuration coudée des deux têtes de brossage (4, 5) permet de parvenir à une bonne adaptation à la courbure de la dentition. De plus, cette configuration permet de mieux accéder aux espaces interdentaires et au bord de la gencive. Les deux têtes de brossage (4, 5) disposées l'une derrière l'autre forment une surface globale de brossage, comparable à la surface de brossage de brosses à dents traditionnelles équipées d'une tête de brossage, à zone de soies rectangulaire, vue de dessus.
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 true EP0901329A1 (fr) 1999-03-17
EP0901329B1 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) NO985165L (fr)
WO (1) WO1997041753A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7774885B2 (en) 2002-02-27 2010-08-17 Braun Gmbh Brush head for a toothbrush
DE202015002650U1 (de) 2014-05-22 2015-05-06 Felix Checa Ayet Chirurgische Prothese zur Behandlung von Leistenbrüchen

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10044031A1 (de) * 2000-09-06 2002-03-21 Braun Gmbh Motorisch angetriebene Zahnbürste und Bürstenkopf hierfür
BR112014009989B1 (pt) 2011-10-27 2021-01-12 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg escova de dentes manual
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9741753A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7774885B2 (en) 2002-02-27 2010-08-17 Braun Gmbh Brush head for a toothbrush
US8453287B2 (en) 2002-02-27 2013-06-04 Braun Gmbh Brush head for a toothbrush
DE202015002650U1 (de) 2014-05-22 2015-05-06 Felix Checa Ayet Chirurgische Prothese zur Behandlung von Leistenbrüchen

Also Published As

Publication number Publication date
NO985165D0 (no) 1998-11-05
WO1997041753A1 (fr) 1997-11-13
EP0901329B1 (fr) 2001-12-05
AU2285497A (en) 1997-11-26
BR9708914A (pt) 1999-08-03
NO985165L (no) 1998-11-05
ID17846A (id) 1998-01-29
DE59705673D1 (de) 2002-01-17
MY132633A (en) 2007-10-31

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