EP0888072B1 - Brosses et leur procede de fabrication - Google Patents

Brosses et leur procede de fabrication Download PDF

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Publication number
EP0888072B1
EP0888072B1 EP96923964A EP96923964A EP0888072B1 EP 0888072 B1 EP0888072 B1 EP 0888072B1 EP 96923964 A EP96923964 A EP 96923964A EP 96923964 A EP96923964 A EP 96923964A EP 0888072 B1 EP0888072 B1 EP 0888072B1
Authority
EP
European Patent Office
Prior art keywords
bristles
brush
bundles
brush body
supporting
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
EP96923964A
Other languages
German (de)
English (en)
Other versions
EP0888072A1 (fr
Inventor
Andreas Lanvers
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.)
M&C Schiffer GmbH
Original Assignee
M&C Schiffer 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
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Application filed by M&C Schiffer GmbH filed Critical M&C Schiffer GmbH
Publication of EP0888072A1 publication Critical patent/EP0888072A1/fr
Application granted granted Critical
Publication of EP0888072B1 publication Critical patent/EP0888072B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/16—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by wires or other anchoring means, specially for U-shaped bristle tufts
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/08—Supports or guides for bristles
    • A46B9/12—Non-adjustable supports
    • 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 method for producing a brush, in particular Toothbrush with a bristle bundle carrying brush body, the bristle bundle consist of plastic bristles.
  • the present invention further relates to a Brush, in particular toothbrush, with a brush body carrying bristle bundles, the bristle bundles consisting of plastic bristles at least in part are each surrounded by sleeve-shaped support elements.
  • a brush of the type mentioned is known from DE-PS 538 075.
  • Toothbrushes are bundles of bristles in rubber sleeves that are housed in a body are used and include tufts of natural bristles or animal hair.
  • the rubber sleeves in one Basic body used To produce the previously known toothbrush is therefore a considerable one Effort required.
  • the previously known toothbrush has the Disadvantage that dirt and / or bacteria between the body and the can stick in the rubber sleeves used. The previously known toothbrush Accordingly, it does not meet today's hygienic requirements.
  • the object of the present invention is a method To create a brush with brushes, especially toothbrushes can be economically manufactured to meet today's hygienic requirements are enough.
  • the present invention is also based on the object of a brush, and in particular to create a toothbrush of the type mentioned that is economical is producible and spreading the bristle bundles on their usage side Ends, which leads to a reduced usability of the brush, and at Toothbrushes are not medically recommended to oppose resistance.
  • the solution according to the invention therefore allows softer bristles or bundles of bristles to be used as before. Especially can now thinner bristles or softer bristle materials, or a combination of both become. This will be a gentler and above all very allows much more thorough brushing of the teeth and the danger injuries to the oral cavity, and especially the gums, decreased.
  • the one that is clearly perceptible to the user Deformation of the bristles during cleaning also reduces too high contact pressure when cleaning, because too much Deformation of the bristle bundles involuntarily by the user will be recognized as wrong and will be corrected immediately.
  • the brush thus supports a medically correct one Brush your teeth. It will also make cleaning more effective achieved because by using thinner bristles the number the bristles per bundle can be increased and thus more bristle ends are effectively engaged. This is preferably done Side support of the bristle bundles elastic.
  • the invention can be used for brushes with a bristle bundle as well as with brushes with a multitude of bristle bundles be used.
  • the use of the brush according to the invention is not on the dental field or limited the cosmetics area. Rather, such Brushing in all areas of everyday life and technology be used, preferably where a particular gentle cleaning of relief-like surface formations is required and / or a particularly long service life of the Bristles is desired.
  • each bristle bundle There is preferably a separate support element for each bristle bundle intended. This enables, with appropriate Selection of the support element in terms of its shape and Deformation capacity, the bending characteristic of individual bristle bundles individually set. For example on a toothbrush with several rows of bristles Bristle bundle or the front bristle bundle supported by higher rigidity than the remaining. It is also conceivable that only a part to support the bristle bundle by means of supporting elements which remaining, however, remain unsupported.
  • the support elements become integral with one another connected and attached as a support unit on the brush body.
  • the shape and the Deformation capacity of the respective support element of a bristle bundle can be set individually the integral design simpler manufacture of the support elements, since these are produced according to the invention using an injection molding process become.
  • the support element preferably has an elastic sleeve section in which a bristle receiving opening extends, and a base portion over which the sleeve portion is connected to the brush body.
  • a support of the bristle bundles in a solid material body for example a support plate of constant thickness
  • Support areas around the individual bristle bundles can through the formation of sleeve-like support elements more precise setting of direction-dependent deformation properties of the respective support element and a higher degree of deformation be achieved. Due to a flange-like expansion of the base section of the support element can be the contact surface between the brush body and the support element be enlarged to loosen the support element even better to prevent.
  • the bristle bundles are preferably fastened in the bristle body, whereby the individual bristle bundles are characterized by the respective Extend support elements through. Alternatively, you can the bundles of bristles are only attached to the support elements be, between the bristle bundles and the support elements Group liability is achieved.
  • the sleeve section or its outer contour be formed essentially cylindrical.
  • the necessary Apply bevels and bends In the preparation of of the support element or elements in a form Specialist for easier removal from the mold the necessary Apply bevels and bends.
  • the sleeve section can also be designed in this way be that its wall thickness at the end of use Bristles tapered.
  • the bending characteristic of the Systems bristle bundle / support element influenced in the desired manner become.
  • the shape of the outer sleeve can meet the requirements a desired bend line of the bristle bundle or individual bristles can be adjusted.
  • an integral support element interconnected.
  • the brush body can completely on the bristle side Integral support element are covered, resulting in a homogeneous Appearance and a high peel strength of the support elements leads.
  • Such an integral support element can also be used manufacture in a particularly efficient manner.
  • the support element can have a surface formation for enlargement the interface between the two are provided to to improve the peel strength.
  • a corresponding increase in surface area can for example by corrugation on one or both parts.
  • the attachment of Grooves, ribs, hole patterns or the like can be given.
  • One way is to fold a bundle of bristles and then the folded end by means of an anchor in the brush body to fix.
  • the anchor for example a plate-like one Metal or plastic part, can with that looped bristle bundle in a provided on the brush body Opening used, for example, punched.
  • the bristles can also be made by that the ends of the bristle bundles to be fastened are melted be so that thickenings form. The thickening are then with brush body material or with support element material overmolded, so that the bristle bundles form-fitting being held.
  • the brush can be used in a two-component injection molding process are produced, the brush body made of a hard plastic component and the support elements as a bristle border preferably made of a plastic soft component, for example consist of a thermoplastic elastomer, however can also be made from a hard component. Ideally, between the hard component of the brush body and the support element or the support elements composite adhesion realized. With appropriate material management can brush body and support elements in successive Manufacturing steps made in a single mold become.
  • a brush body that can be formed in one piece with the handle of the brush 10 is with a variety of in any way producible blind holes 11 provided.
  • Each of them serves Blind holes 11 for receiving a bundle of bristles 20 that a variety of, preferably thin, flexible bristles is made of plastic.
  • This bundle of bristles 20 is folded or looped around an anchor 40, see that all bristle ends point in one direction.
  • Each Bristle bundle is clawed in the brush body 11
  • Anchor 40 clamped in its blind hole 11.
  • the anchor is formed as a flat plate, which with respect to the Blind hole 11 essentially upright in the brush body 10 is stamped.
  • the support element 30 On the bristle side of the brush body is for each bundle of bristles 20 attached a support member 30.
  • the one in the figures 2a to 2c shown embodiment of the support element 30 has a bristle receiving opening 31 for lateral support of the bristle bundle 20.
  • the bristle bundles are preferably supported up to about half their length.
  • the Support element 30 has one in particular in the radial direction elastically deformable sleeve section 32 and one itself flange-like in the radial direction over the sleeve section 32 extending base portion 33. About this base section 33 is the respective support element 30 with the Brush body 10 connected. In the case of FIGS.
  • 2a to 2c shown embodiment extends the bristle receiving opening 31 through the sleeve portion 32 and the base portion 33 through.
  • the support element 30 or its base portion 33 and the brush body 10 shows a surface formation for enlarging the contact area provided between the two to ensure the peel strength of the respective support element to improve further. This can for example by corrugation or the attachment of grooves, ribs, hole patterns or similar on one or both contact surfaces respectively.
  • Group liability can be achieved between the support elements 30 or their Base sections 33 and the brush body can with appropriate Material selection and suitable manufacturing parameters Group liability can be achieved.
  • the individual support elements are mutually by their base sections 33 Connected to an integral support element and cover the brush body on the bristle side in the area of the bristles completely.
  • the sleeve section 32 is essentially cylindrical, so that the bristle bundle the bending behavior is the same in all directions.
  • the wall thickness of the sleeve section accordingly 32 and the arrangement of the bristle bundle 20 in the bristle receiving opening 31 allows the bending behavior of the bristle bundle / support element system in the desired manner and influence as needed.
  • the outer bundles of bristles, and especially their outer bristles, more supported are called the inner bristles or bristle bundles, so that the durability of the most stressed bristles is further improved.
  • the bending behavior of the bristle bundle 20 can the embodiment shown in Figures 2a to 2c also one only partial side support through the bristle receiving opening 31 be made, as is the case with the right Bristle bundle is shown in Fig.4.
  • FIG Fig.3 Another embodiment of the support element 30 is shown in FIG Fig.3 shown.
  • This support element differs from that shown in Figure 2a mainly by its essentially frustoconical formation.
  • By decreasing the Wall thickness towards the end of the bristles can change the bending behavior of the bristle bundle / support element system is even more homogeneous than in the embodiment described above can be designed. In particular, this can stress the individual bristles further reduced in the exit area from the support element 30 become.
  • the conical design results in the transition area of the sleeve section 32 to the base section 33 a lower notch effect, so that the Stability of the support member 30 is further improved.
  • a separate support element can also be provided for each bundle of bristles 30, which is separated from the support elements of the other bristle bundles is to be provided.
  • FIG Fig.4 Another embodiment of the support elements 30 is shown in FIG Fig.4 shown, which is integral with a solid body are trained. This results from the outside the impression of a conventional brush, but that already described advantages of the preferably elastic Has side support of the bristle bundle 20. How exemplary in the bristle bundle shown on the right in FIG. 4 this is only partially supported laterally to form a to achieve directional bending characteristics.
  • blind holes 11 provided brush body 10, which preferably is injected from a hard plastic component the support elements 30 attached, for example by injection or also by an adhesive process or a Similar procedure, so that a deeper blind hole is created.
  • the support element is preferably a two-component injection molding process used.
  • the support elements 30 will make them out made of a plastic soft component. This gives a blind hole, the upper wall section one for the side support of the bristles has greater elasticity, and its lower part has sufficient strength for clawing of the armature 40.
  • the bristle of the already is carried out with the support elements connected brush body 10 then by driving in the anchor 40 with the folds around it Bristles or bundles of bristles through the respective support element 30 through into the brush body 10 and there Clawing or jamming of the anchor and thus the bristle bundle 20th
  • the bristle bundle 20 instructs its end to be anchored a thickening of melted Bristle material for sufficient bundle extraction worries.
  • the thickened ends of the bristle bundles 20 in the brush body 10 attached.
  • the individual Bristle bundle 20 introduced into prefabricated support elements 30, so that the thickenings 25 of the individual bristle bundles 20 protrude from the support members 30.
  • the thickening are then made with a plastic hard component overmolded, which forms the brush body 10.
  • the elastic side support of the bristle bundle 20 through the support elements 30 can also be through a plastic hard component (Material), their elasticity achieved by the shape of the individual support elements 30 becomes.
  • plastic hard components are preferred for this, which have a Shore A hardness of less than 70, used.
  • two-component process is not related to use limited by different materials but also includes the possibility of using the same material, for example with different colors.

Landscapes

  • Brushes (AREA)

Claims (23)

  1. Procédé pour fabriquer une brosse, en particulier une brosse à dents, comportant un corps de brosse (10) qui porte des faisceaux de poils (20), lesquels se composent de poils en matière plastique, caractérisé en ce que lors d'une opération de moulage par injection, des éléments de support (30) en matière plastique en forme de douilles qui entourent les faisceaux de poils (20) individuels sont fabriqués pour une partie au moins des faisceaux de poils (20), d'une seule pièce avec le corps de brosse (10).
  2. Procédé selon la revendication 1, caractérisé en ce que les éléments de support (30) sont rapportés par moulage par injection sur le support de brosse (10), puis les faisceaux de poils (20) sont introduits par les éléments de support (30) dans le corps de brosse (10) et ancrés dans celui-ci.
  3. Procédé selon la revendication 1, caractérisé en ce que les faisceaux de poils (20), avec leurs extrémités situées côté fixation, sont entourés par le matériau des éléments de support (30) ou sont encastrés dans le corps de brosse (10) environnant.
  4. Procédé selon l'une au moins des revendications 1 à 3 précédentes, caractérisé en ce que les éléments de support (30) et le corps de brosse (20) sont fabriqués lors d'un procédé de moulage par injection à deux composants.
  5. Procédé selon la revendication 4, caractérisé en ce que le corps de support (30) est moulé par injection à partir d'une matière plastique souple élastique, et le corps de brosse (10) à partir d'une matière plastique dure.
  6. Procédé selon l'une au moins des revendications 1 à 5 précédentes, caractérisé en ce que les corps de support (30) sont fabriqués d'une seule pièce et sous la forme d'un élément composite plat avec le corps de brosse (10), à l'aide d'une technique de moulage par injection.
  7. Procédé selon l'une au moins des revendications 1 à 6 précédentes, caractérisé en ce que le corps de brosse (10) est rapporté par moulage par injection sur les corps de support (30).
  8. Procédé selon la revendication 1, caractérisé en ce que les corps de support (30) et le corps de brosse (10) sont moulés par injection lors d'un procédé de moulage par injection à partir d'une matière plastique dure, en particulier en plusieurs couleurs.
  9. Procédé selon l'une au moins des revendications 1 à 8 précédentes, caractérisé en ce que les faisceaux de poils (20), à leurs extrémités situées côté fixation, sont pourvus d'un épaississement, par fusion, puis sont encastrés dans un élément de support en forme de douille (30) en étant couverts par injection par celui-ci.
  10. Procédé selon l'une au moins des revendications 1 à 8 précédentes, caractérisé en ce que les faisceaux de poils (20), à leurs extrémités situées côté fixation, sont pourvus d'un épaississement, par fusion, puis sont encastrés dans le corps de brosse (10) en étant couverts par injection par celui-ci.
  11. Procédé selon la revendication 10, caractérisé en ce que les faisceaux de poils (20) sont entourés au-dessus de l'épaississement par les éléments de support (30), en particulier par injection.
  12. Brosse, en particulier brosse à dents, comportant un corps de brosse (10) qui porte des faisceaux de poils (20), étant précisé que chaque faisceau, composé de poils en matière plastique, est entouré au moins en partie par un élément de support en forme de douille (30), caractérisée en ce que les éléments de support (30) sont en matière plastique et sont formés d'une seule pièce, par moulage par injection, sur le corps de brosse (10).
  13. Brosse selon la revendication 12, caractérisée en ce que les faisceaux de poils (20) sont supportés élastiquement par les éléments de support (30).
  14. Brosse selon la revendication 12 ou 13, caractérisée en ce qu'il est prévu un élément de support (30) propre pour chaque faisceau de poils (20).
  15. Brosse selon l'une au moins des revendications 2 à 14 précédentes, caractérisée en ce que plusieurs éléments de support (30) ou tous les éléments de support (30) sont reliés d'une seule pièce et sont prévus sous la forme d'une unité sur le corps de brosse (10).
  16. Brosse selon l'une au moins des revendications 12 à 15 précédentes, caractérisée en ce que l'élément de support (30) comprend une section formant douille (32) apte à se déformer élastiquement, dans laquelle s'étend une ouverture de réception de poils (31) destinée à recevoir un faisceau de poils, et une section de base (33) par l'intermédiaire de laquelle la section formant douille (32) est reliée au corps de brosse (10).
  17. Brosse selon l'une au moins des revendications 12 à 16 précédentes, caractérisée en ce que les faisceaux de poils sont fixés au corps de brosse (10) et traversent l'élément de support.
  18. Brosse selon l'une au moins des revendications 12 à 17 précédentes, caractérisée en ce que les faisceaux de poils sont fixés, à une extrémité, à l'élément de support (30).
  19. Brosse selon l'une au moins des revendications 12 à 18 précédentes, caractérisée en ce que le contour extérieur de la section formant douille (32) a une forme globalement cylindrique.
  20. Brosse selon l'une au moins des revendications 12 à 19 précédentes, caractérisée en ce que le contour extérieur de la section formant douille (32) va en s'effilant vers l'extrémité utilisée des faisceaux de poils (20).
  21. Brosse selon l'une au moins des revendications 12 à 20 précédentes, caractérisée en ce que plusieurs éléments de support ou tous les éléments de support sont reliés entre eux par leurs sections de base (33).
  22. Brosse selon l'une au moins des revendications 12 à 21 précédentes, caractérisée en ce qu'il est prévu entre le corps de brosse (10) et l'élément de support (30) une structure superficielle (12) destinée à augmenter la surface de contact entre le corps de brosse (10) et l'élément de support (30).
  23. Brosse selon l'une au moins des revendications 12 à 22 précédentes, caractérisée en ce que chaque élément de support (30) est fabriqué sous la forme d'une pièce moulée par injection.
EP96923964A 1996-06-27 1996-06-27 Brosses et leur procede de fabrication Expired - Lifetime EP0888072B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1996/002822 WO1998000047A1 (fr) 1996-06-27 1996-06-27 Brosses et leur procede de fabrication

Publications (2)

Publication Number Publication Date
EP0888072A1 EP0888072A1 (fr) 1999-01-07
EP0888072B1 true EP0888072B1 (fr) 1999-12-08

Family

ID=8166253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96923964A Expired - Lifetime EP0888072B1 (fr) 1996-06-27 1996-06-27 Brosses et leur procede de fabrication

Country Status (4)

Country Link
US (1) US6311360B1 (fr)
EP (1) EP0888072B1 (fr)
DE (1) DE59603890D1 (fr)
WO (2) WO1998000047A1 (fr)

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EP2210521A2 (fr) 2009-01-22 2010-07-28 M+C Schiffer GmbH Procédé de fabrication d'une brosse, notamment une brosse à dents
DE102011017099A1 (de) 2011-04-14 2012-10-18 M + C Schiffer Gmbh Verfahren zur Herstellung von Zahnbürsten
EP2632293B1 (fr) 2010-10-25 2016-09-28 Zahoransky Formenbau Gmbh Brosse et procédé pour fabriquer une brosse

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CN105188468B (zh) * 2012-12-20 2017-05-10 高露洁-棕榄公司 口腔护理器具
US20150209634A1 (en) * 2014-01-28 2015-07-30 William R. McMahon Golf club face wipe
EP3122208B1 (fr) * 2014-03-25 2024-02-07 Koninklijke Philips N.V. Agencements de tête de brosse
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JP6802809B2 (ja) * 2015-05-14 2020-12-23 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． ブラシヘッド構成
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Publication number Priority date Publication date Assignee Title
EP2210521A2 (fr) 2009-01-22 2010-07-28 M+C Schiffer GmbH Procédé de fabrication d'une brosse, notamment une brosse à dents
DE102009005708A1 (de) 2009-01-22 2010-07-29 M + C Schiffer Gmbh Verfahren zum Herstellen einer Bürste, insbesondere einer Zahnbürste
EP2632293B1 (fr) 2010-10-25 2016-09-28 Zahoransky Formenbau Gmbh Brosse et procédé pour fabriquer une brosse
DE102011017099A1 (de) 2011-04-14 2012-10-18 M + C Schiffer Gmbh Verfahren zur Herstellung von Zahnbürsten

Also Published As

Publication number Publication date
EP0888072A1 (fr) 1999-01-07
WO1998000047A1 (fr) 1998-01-08
DE59603890D1 (de) 2000-01-13
US6311360B1 (en) 2001-11-06
WO1997049313A1 (fr) 1997-12-31

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