EP2471408B1 - Brosse à dents - Google Patents

Brosse à dents Download PDF

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Publication number
EP2471408B1
EP2471408B1 EP12001077.2A EP12001077A EP2471408B1 EP 2471408 B1 EP2471408 B1 EP 2471408B1 EP 12001077 A EP12001077 A EP 12001077A EP 2471408 B1 EP2471408 B1 EP 2471408B1
Authority
EP
European Patent Office
Prior art keywords
carrier body
brush head
toothbrush according
aperture
recess
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.)
Active
Application number
EP12001077.2A
Other languages
German (de)
English (en)
Other versions
EP2471408A3 (fr
EP2471408A2 (fr
Inventor
Jürgen Butz
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.)
Interbros GmbH
Original Assignee
Interbros 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 Interbros GmbH filed Critical Interbros GmbH
Publication of EP2471408A2 publication Critical patent/EP2471408A2/fr
Publication of EP2471408A3 publication Critical patent/EP2471408A3/fr
Application granted granted Critical
Publication of EP2471408B1 publication Critical patent/EP2471408B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • A46B5/0025—Brushes with elastically deformable heads that change shape 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
    • A46B5/0091—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body promoting relative motion 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 invention relates to a toothbrush having a brush head consisting of a first plastic, to which a carrier body is arranged from a plastic which is softer than the first plastic. 2.
  • a bristle stocking in the form of bristle bundles and / or individual bristles is arranged at least on the carrier body ,
  • a plastic toothbrush of conventional construction has a plate-like brush head, which carries on its upper side a bristle stocking consisting of bristle bundles and / or individual bristles and is usually formed integrally with a handle-like extension which forms a handle.
  • the handle facing portion of the brush head consists of a first relatively rigid rigid plastic, on which at the front, the handle facing away from the tip portion of a brush head from a relative to the 1st Plastic deformation-softening 2.
  • Plastic is molded.
  • Bristle bundles and / or single bristles are mounted in both sections so that the user is preferably to use the bristles of the easily deformable softer tip section to clean the interdental spaces, and the bristles of the relatively rigid rear brush head section to clean the tooth surfaces.
  • this change between the use of different brush head sections when using the toothbrush is cumbersome and sometimes annoying for the user.
  • the invention has for its object to provide a toothbrush of the type mentioned, with which it can be achieved both a gentle cleaning of the interdental spaces and an effective cleaning of the tooth surfaces in a simple manner.
  • a toothbrush with the features of claim 1. It is provided that in the brush head consisting of a first plastic at least one circumferentially completely closed recess is formed, in which a carrier body is arranged from a comparison with the 1st plastic deformation softer 2nd plastic. At least on the carrier body, but preferably both on the carrier body and on the surrounding brush head, a bristle lining in the form of bristle bundles and / or individual bristles is arranged.
  • the bristle bundles and / or individual bristles are subject to a different deformation behavior when using the toothbrush.
  • the carrier body is deformed in the bristle facing away from the direction, whereby the fixed to the carrier body bristle bundles and / or individual bristles are withdrawn and the further cleaning operation is preferably carried out with the bristle bundles and single bristles attached to the relatively rigid brush head without the toothbrush having to be used by the user for this purpose.
  • the deformation stiffness or softness of the carrier body results on the one hand from the second plastic material forming the carrier body and its material properties.
  • the nature and geometry of the mounting or attachment of the carrier body to the surrounding brush head also determines the deformation occurring during use of the toothbrush.
  • the recess formed in the brush head is completely closed in the circumferential direction, i. the recess does not open to either side of the brush head and the inner wall of the recess completely revolves.
  • the carrier body is connected in connection portions with the surrounding inner wall of the recess. If the carrier body is connected over its entire outer circumference with the inner wall of the recess, the deformation stiffness of the carrier body is determined essentially by its material properties. According to the invention, however, it is provided that the connection between the carrier body and the surrounding inner wall of the recess comprises only a part of the outer circumference of the carrier body. The smaller the connecting surface between the carrier body and the inner wall of the recess, the greater is the deformation of the carrier body occurring during use of the toothbrush.
  • the carrier body is connected only on one side of its outer periphery with the surrounding inner wall of the recess.
  • the support body thus has the storage of a one-sided held or clamped component, such as a cantilevered plate, which is already at relatively low Querbelastept especially deformed at its end facing away from the clamping.
  • a desired deformation behavior of the carrier body can be achieved in particular if the carrier body is attached to the inner wall of the recess via relatively small, precisely defined surfaces. This is for example given when the support body via connecting webs parallel to the deformation direction, i. the bristle longitudinal direction, or can also extend transversely to the deformation direction, is connected to the surrounding inner wall of the recess.
  • the carrier body is integrally connected to the inner wall of the recess. This is possible if the first plastic of the brush head and the second plastic of the carrier body enter into an intimate, sufficiently reliable connection.
  • the carrier body is positively connected to the inner wall of the recess.
  • the carrier body for this purpose, for example, be formed on the inner wall head-like projections which are embraced by the material of the carrier body positively.
  • the carrier body extends over the entire height of the recess.
  • the carrier body may extend only over a portion of the height of the recess, in which case preferably provided is that the carrier body is arranged in the upper, the bristle facing facing region of the recess.
  • the carrier body can perform a deformation within the recess, without emerging on the side facing away from the bristle facing from the recess or the brush head.
  • the recess may be formed as the brush head completely penetrating opening, so that the carrier body can emerge on application of large forces on the side facing away from the bristle facing from the recess or opening.
  • longer bristle bundles and / or individual bristles are arranged on the carrier body than on the brush head.
  • Such a configuration has the advantage that in use of the toothbrush and applying very low cleaning forces essentially only come on the support body arranged longer bristle bundles and / or individual bristles come into contact with the surfaces to be cleaned.
  • the carrier body deforms in the direction away from the bristle facing, whereby the arranged on the carrier body bristle bundles and / or single bristles are pressed into the bristle trim, so that in the further use of the toothbrush on the Arranged brush head Bristle bundles and / or single bristles come with the surfaces to be cleaned in plant.
  • bristle bundles and / or individual bristles of different lengths are arranged on the carrier body. It is preferably provided, then in those areas of the carrier body, which are subject to relatively large deformation in use, longer bristle bundles are arranged than in those areas which are subject to only a small deformation. In this way it can be achieved that the ends of the bristle bundles and / or individual bristles held on the carrier body lie substantially at a height or in a surface on a deformed carrier body.
  • the first plastic of the brush head is preferably a relatively dimensionally stable hard plastic and in particular a semi-crystalline or amorphous thermoplastic, for example polypropylene (PP) or polyethylene terephthalate (PET).
  • the second plastic of the carrier body is a deformation-soft elastomer and in particular a thermoplastic elastomer.
  • a carrier body is arranged in the brush head.
  • a plurality of recesses of the same or different shape are formed in the brush head, in each of which a carrier body mentioned construction is added.
  • FIGS. 1, 2 and 3 show a first embodiment of a toothbrush 10 according to the invention, of which only a brush head 11 is shown, to which a in accordance with FIG. 1 right-side connecting portion 11a connects a stalk-like handle in the usual way.
  • the brush head 11 consists of a first plastic, which is relatively rigid.
  • two recesses 12 are formed, which completely penetrate the brush head 11 and are completely closed over its circumference, i. Surrounded on all sides by the brush head 11.
  • a support body 13 is arranged, which consists of a second plastic material, which is deformation-soft compared to the first plastic material of the brush head 11.
  • a bristle trim 17 which can be formed from bristle bundles 18 and / or from individual bristles, is fastened both to the carrier bodies 13 and to the brush head 11.
  • connection portions 13a which comprise only a part of the outer periphery of the respective support body 12, while in the remaining portions of the outer periphery of the support body 13, a gap 19 is formed between this and the inner wall 14 of the recess 12.
  • the handle facing away from the portion of the brush head 11 of the local support body 13 is connected only at its rear, the handle end facing via a connecting portion 13 a with the adjacent inner wall 14 of the recess 12.
  • the arranged on the associated carrier body 13 bristle bundles 18 are also axially displaced and pulled into the bristle 17.
  • support body 13 is connected at its front, facing the head connecting portion 13a and on its opposite side to a handle facing connecting portion 13b cohesively to the inner wall 14 of the associated recess 12, while at its other sides of the wall 14 of the recess 12 below Forming each of a gap 19 is spaced.
  • the carrier body 13 in static terms is a held on opposite sides plate, which leads to deformation of the carrier body 13 in the central region in the direction facing the edge trim 17 upon application of a compressive force at the free ends of the bristle bundles 18, as in FIG. 3 is shown.
  • FIGS. 4 and 5 illustrated embodiment differs from the aforementioned embodiment only by the length of the bristle bundles 18 of the bristle trim 17. While in the embodiment according to the FIGS. 1 to 3 all bristle bundles 18 have an equal length and thus arranged on the support bodies 13 bristle bundles 18 are drawn in deformation of the support body 13 in the bristle trim 17 and thus by a lesser extent from the top of the bristle head 11 protrude (see FIG. 3 ), is in the execution according to the FIGS. 4 and 5 provided that the bristle bundles arranged on the carrier bodies 13 have a greater axial length than the bristle bundles 18 arranged on the bristle head 11.
  • the length of the carrier bodies 13 arranged bristle bundles adapted to the deformation behavior of the carrier body 13.
  • the bristle bundles are at the near the connecting portion 13a lying end shorter than the bristle bundles, which lie at the free, the connecting portion 13a opposite end.
  • the bristle bundles 18 in the other support body 13, which is a double-sided held plate are shorter near the connecting portions 13a and 13b than in the middle portion where the largest deformation occurs.
  • all the bundles of bristles 18 project with their ends approximately the same extent from the brush head 11 when the carrier body 13 is deformed, as is shown in FIG FIG. 5 is shown.
  • the carrier bodies 13 were connected in their connecting sections 13a and 13b over the entire height of the recess 12 and thus of the brush head 11 to the surrounding inner wall 14 of the recess 12.
  • front support body 13 only in the upper third of its height cohesively connected to the inner wall 14 of the recess 12, below this connection portion 13 a gap 15 between the support body 13 and the inner wall 14 is formed, which additionally supports the deformation of the support body 13, such as it in FIG. 7 is shown.
  • the other carrier body 13 which is connected on two opposite sides via connecting portions 13a and 13b with the inner wall 14 of the recess 12, also connected only in the upper third of its height to the inner wall 14, wherein below the connecting portions in each case a gap 15 remains which reduces the deformation stiffness of the carrier body 13 and thus leads to a larger deformation of the carrier body 13 in use of the toothbrush.
  • the connecting portions 13a and 13b are formed only in the upper third of the height of the recess, modifications thereof are also possible, in particular a formation of the connecting portions in the upper half of the height of the recess, in the two upper thirds of the height of the recess or only in the middle third of the recess.
  • FIGS. 8 to 11 show a further alternative embodiment of the toothbrush according to the invention, wherein the comparison with the previous embodiments similar parts are provided with the same reference numerals. While in the previous embodiments, the connecting portions between the support body 13 and the surrounding inner wall 14 of the recess 12 were relatively large-area areas, the connecting portions in the embodiment according to FIG. 8 formed by narrow, linear connecting webs 13c.
  • Left carrier body 13 is provided on the handle side facing each in the corner regions and the central region extending into the recess 12 into the connecting web 13c, so that the Carrier body 13 is held by three linear, relatively thin connecting portions on the brush head 11.
  • the connecting webs 13c extend parallel to the longitudinal direction of the bristle bundles 18 and extend in the illustrated embodiment only over half the height of the recess 12.
  • Wie FIG. 10 shows, the thickness of the carrier body 13 is significantly smaller than the depth of the recess 12 and includes about half thereof, wherein the carrier body 13 is connected in the upper, the bristle facing 17 facing region of the recess 12.
  • middle carrier body 13 is connected only at the two lateral, located at the longitudinal edges of the brush head 11 ends via two corner-side connecting webs 13c and is also only in the upper half of the recess 12 (see FIG. 10 ).
  • Right support body 13 differs from the left support body substantially in that the connection surface is again substantially reduced by the connecting webs 13c are smaller than the height of the support body 13. Die Stefansstege 13c ist in Fig. 1 classroom.
  • the arrangement of the carrier body 13 in the upper half of the recess 12 causes the carrier body 13 in its deformed state, as in FIG. 11 is shown, remain within the recess 12 and not or only by a small amount on the side facing away from the bristle facing out of the recess 12.
  • FIGS. 12 and 13 correspond to the representations in FIGS. 10 and 11 and are complemented by the recesses 12 on the bristle facing away from the side are closed with a cover plate 16, which is either formed integrally with the brush head 11 or subsequently attached thereto. Due to the cover plate 16 is reliably avoided that the support body 13 in its deformed state on the bristle facing 17 side facing away from the recess 12 emerge.
  • FIGS. 14, 15 and 16 show possible attachment geometries for a carrier body 13 to the surrounding inner wall 14 of the recess 12.
  • middle support body 13 is fitted under close fit in the associated recess 12 and secured over its entire circumference at this.
  • an all-sided held plate is given.
  • this support body is connected only at its the longitudinal edges of the brush head 11 facing side surfaces with the recess 12, while on the two other sides in each case a gap 19 between the support body 13 and the recess 12 is formed.
  • FIG. 16 the same carrier body is held only at the two opposite, pointing to the longitudinal sides of the brush head ends 11, but there is in contrast to the embodiment according to FIG. 15 now only a relatively thin, central connecting web 13c is provided, which makes it possible that the carrier body 13 performs deformation movements in different directions.
  • the according to FIG. 14 left carrier body is connected on all its side surfaces via a connecting web 13c with the surrounding inner wall 14 of the recess 12.
  • this carrier body is only on the side facing the handle with the recess 12 via a large-area connecting portion 13a, while the other sides are spaced to form the gap 19 from the recess.
  • the left support body is only connected in two corner regions via an elongated connecting web 13c.
  • the right support body 13 according to FIG. 14 is only on its the middle of the brush head 11 facing side via a central, vertically extending connecting web 13c with the inner wall 14 of the recess 12 in connection, so that the carrier body 13 can perform relatively large deformations.
  • the same carrier body is in accordance with the embodiment FIG. 15 on its entire, the center of the brush head 11 facing side connected to the recess 12.
  • the embodiment of this support body according to FIG. 16 differs from the embodiment according to FIG. 14 essentially in that in addition to the central connecting web 13c on the middle of the brush head 11 side facing also in the corner regions in each case a connecting web 13c is formed, which, however, is connected to the longitudinal sides of the brush head 11 facing ends with the recess.
  • the second plastic material of the carrier body 13 can be materially connected to the first plastic material of the brush head 11. If this is not the case, a positive connection between the support body 13 and the brush head 11 may be provided, as in the FIGS. 17 to 19 is shown.
  • FIG. 17 is on the inside of the left recess 12, a so-called mushroom head 20 is formed, which forms an undercut.
  • the carrier body 13 engages behind the mushroom head 20 so that the carrier body 13 is held in a form-fitting manner on the brush head 11.
  • the deformation behavior of the carrier body 13 can be set in the desired manner.
  • only a single mushroom head 20 is provided, so that the carrier body 13 can perform relatively large deformations.
  • the carrier body 13 surrounds the flanges 22 of the profile strips 21 and is thus positively connected thereto.
  • a gap 19 is formed between the outside of the carrier body 13 and the inner wall 14 of the recess 12, ie the carrier body 13 is only on the profile strips 21 with the brush head 11 in abutment. This allows relatively large deformations, as in FIG. 19 is shown.

Landscapes

  • Brushes (AREA)

Claims (14)

  1. Brosse à dents avec une tête de brosse (11) réalisée à partir d'une 1ère matière plastique, dans laquelle au moins un évidement (12) entièrement fermé est réalisé dans la direction périphérique et dans lequel est disposé un corps de support (13) composé d'une 2ème matière plastique davantage déformable que la 1ère matière plastique, un garnissage de soies (17) sous forme de paquets de soies (18) et/ou de soies individuelles étant disposé au moins sur le corps de support (13), caractérisée en ce que le corps de support (13) est relié dans des sections de jonction (13a, 13b, 13c) avec la paroi intérieure (14) périphérique de l'évidement (12), les sections de jonction (13a, 13b, 13c) ne comprenant qu'une partie du périmètre extérieur du corps de support (13) et en ce que le corps de support (13) n'est relié que sur un côté de son périmètre extérieur avec la paroi intérieure (14) périphérique de l'évidement (12).
  2. Brosse à dents selon la revendication 1, caractérisée en ce que le corps de support (13) est relié à la paroi intérieure (14) périphérique de l'évidement (12) via des étais de jonction (13c).
  3. Brosse à dents selon la revendication 1 ou 2, caractérisée en ce que le corps de support (13) est relié à la paroi intérieure (14) de l'évidement (12) par complémentarité de matières.
  4. Brosse à dents selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le corps de support (13) est relié à la paroi intérieure (14) de l'évidement (12) par complémentarité de formes.
  5. Brosse à dents selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le corps de support (13) s'étend sur la totalité de la hauteur de l'évidement (12).
  6. Brosse à dents selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le corps de support (13) ne s'étend que sur une zone partielle de la hauteur de l'évidement (12).
  7. Brosse à dents selon la revendication 6, caractérisée en ce que le corps de support (13) est disposé dans la zone supérieure de l'évidement (12).
  8. Brosse à dents selon l'une quelconque des revendications 1 à 7, caractérisée en ce que l'évidement (12) prend la forme d'un détouré traversant entièrement la tête de brosse (11).
  9. Brosse à dents selon l'une quelconque des revendications 1 à 8, caractérisée en ce que l'évidement (12) est fermé sur son côté opposé au garnissage de soies (17).
  10. Brosse à dents selon l'une quelconque des revendications 1 à 9, caractérisée en ce que les paquets de soies (18) et/ou les soies individuelles sont plus longs sur le corps de support (13) que sur la tête de brosse (11).
  11. Brosse à dents selon l'une quelconque des revendications 1 à 10, caractérisée en ce que des paquets de soies (18) et/ou des soies individuelles de longueur différente sont disposés sur le corps de support (13).
  12. Brosse à dents selon l'une quelconque des revendications 1 à 11, caractérisée en ce que la 1ère matière plastique est une matière plastique thermoplastique en partie cristalline ou amorphe.
  13. Brosse à dents selon la revendication 12, caractérisée en ce que la 1ère matière plastique est un polypropylène ou un poly(téréphtalate d'éthylène) (PET).
  14. Brosse à dents selon l'une quelconque des revendications 1 à 13, caractérisée en ce que la 2ème matière plastique est un élastomère et notamment un élastomère thermoplastique.
EP12001077.2A 2007-05-07 2008-05-05 Brosse à dents Active EP2471408B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710021314 DE102007021314A1 (de) 2007-05-07 2007-05-07 Zahnbürste
EP08758381A EP2144528B1 (fr) 2007-05-07 2008-05-05 Brosse à dents

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP08758381.1 Division 2008-05-05

Publications (3)

Publication Number Publication Date
EP2471408A2 EP2471408A2 (fr) 2012-07-04
EP2471408A3 EP2471408A3 (fr) 2012-10-10
EP2471408B1 true EP2471408B1 (fr) 2013-11-13

Family

ID=39829219

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08758381A Active EP2144528B1 (fr) 2007-05-07 2008-05-05 Brosse à dents
EP12001077.2A Active EP2471408B1 (fr) 2007-05-07 2008-05-05 Brosse à dents

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08758381A Active EP2144528B1 (fr) 2007-05-07 2008-05-05 Brosse à dents

Country Status (4)

Country Link
EP (2) EP2144528B1 (fr)
DE (1) DE102007021314A1 (fr)
ES (1) ES2446380T3 (fr)
WO (1) WO2008135258A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102125353B (zh) * 2010-01-20 2015-03-11 李宗鸿 多片刷毛组合更换牙刷
WO2012080919A1 (fr) 2010-12-13 2012-06-21 Koninklijke Philips Electronics N.V. Appareil d'hygiène buccale avec substrat déformable

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1233821B (de) * 1964-10-02 1967-02-09 Du Pont Zahnbuerste
US4240452A (en) * 1979-09-13 1980-12-23 Jean San Bau Elastic base toothbrush
FR2616306B1 (fr) * 1987-06-15 1990-04-20 Bois Jean Brosse a dents mecanisee
ATE200960T1 (de) * 1991-03-27 2001-05-15 Smithkline Beecham Consumer Zahnbürste mit federnder zone zwischen dem zahnbürstenkopf und einem umliegenden rahmen
US5398366A (en) * 1991-03-29 1995-03-21 Bradley; Terry Rocker toothbrush
DE4122524A1 (de) 1991-07-08 1992-02-06 Jens Pagel Buerste mit flexiblen reibkoerpern, insbesondere borsten, die in ihren jeweiligen fussbereichen in elastischen lagern befestigt sind
GB9414140D0 (en) 1994-07-13 1994-08-31 Procter & Gamble Toothbrush
DE19816098A1 (de) 1998-04-09 1999-10-14 Coronet Werke Gmbh Reinigungsbürste, insbesondere Zahnbürste
DE10259723A1 (de) * 2002-12-19 2004-07-01 Trisa Holding Ag Zahnbürste und Verfahren zu deren Herstellung
GB0317539D0 (en) * 2003-07-25 2003-08-27 Glaxosmithkline Consumer Healt Toothbrush
ATE534314T1 (de) * 2004-09-22 2011-12-15 Trisa Holding Ag Bürste, insbesondere zahnbürste, und verfahren zu deren herstellung

Also Published As

Publication number Publication date
EP2144528A2 (fr) 2010-01-20
EP2144528B1 (fr) 2012-08-08
ES2446380T3 (es) 2014-03-07
WO2008135258A3 (fr) 2009-01-22
EP2471408A3 (fr) 2012-10-10
DE102007021314A1 (de) 2008-11-13
EP2471408A2 (fr) 2012-07-04
WO2008135258A2 (fr) 2008-11-13

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