EP2215923A1 - Procédé pour la production de brosses dépourvues de moyens de fixation, en particulier des brosses à dents dépourvues de moyens de fixation - Google Patents

Procédé pour la production de brosses dépourvues de moyens de fixation, en particulier des brosses à dents dépourvues de moyens de fixation Download PDF

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Publication number
EP2215923A1
EP2215923A1 EP10000457A EP10000457A EP2215923A1 EP 2215923 A1 EP2215923 A1 EP 2215923A1 EP 10000457 A EP10000457 A EP 10000457A EP 10000457 A EP10000457 A EP 10000457A EP 2215923 A1 EP2215923 A1 EP 2215923A1
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EP
European Patent Office
Prior art keywords
fiber mass
carrier element
fibers
inspection
happens
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
EP10000457A
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German (de)
English (en)
Other versions
EP2215923B1 (fr
Inventor
Bart Gerard Boucherie
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.)
GB Boucherie NV
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GB Boucherie NV
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Publication date
Application filed by GB Boucherie NV filed Critical GB Boucherie NV
Publication of EP2215923A1 publication Critical patent/EP2215923A1/fr
Application granted granted Critical
Publication of EP2215923B1 publication Critical patent/EP2215923B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A46B3/06—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by welding together bristles made of metal wires or plastic materials
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/04—Machines for inserting or fixing bristles in bodies
    • A46D3/045—Machines for inserting or fixing bristles in bodies for fixing bristles by fusing or gluing to a body

Definitions

  • the present invention relates to a method for the production of anchorless brushes, more in particular toothbrushes.
  • toothbrushes are made of a handle to which a carrier element is provided with holes throughout in which fibers are introduced that on one side of the carrier element are attached to the carrier element using metallic fixation means referred to as anchors, which are covered afterwards by a cover part.
  • One method for producing such brushes without metallic fixation means consists of making use of a carrier element with openings throughout, in which fibers can be shoved. These fibers are linked to each other on one side of the carrier element by fusing the extremities of the fibers by means of heat.
  • the carrier element with the fibers can be linked in a non detachable fashion with a toothbrush body, or a toothbrush body can be created onto the carrier element, for instance by injection moulding.
  • the toothbrush body will then at least partly cover that side of the carrier element where the fibers are linked to one another.
  • a disadvantage of this known method is that it destroys the products that have been tested and does not assure an even distribution of the force needed to detach the fibers from the toothbrushes that have not been tested.
  • One way of inspecting such a toothbrush after the injection moulding step would be to visually inspect every toothbrush produced to verify that the molten plastic does not protrude on the opposite side of the toothbrush holder.
  • a disadvantage of such a visual inspection method is that it is not only tedious and laborious, but also unreliable since human observation is not always consistent.
  • Another disadvantage of such a visual inspection is that it does not guarantee the quality of the fusion of the fibers since the extremities of the fibers that are fused together are not visible since they are covered by the covering part.
  • the present invention provides a method for the production of anchorless brushes, more in particular toothbrushes, made out of a carrier element provided with holes throughout in which fibers are introduced which are fused together on one side of the carrier element and are at least partly covered by a covering part whereby the method comprises the following steps:
  • Another advantage of this non-destructive inspection is that it enables the inspection of all the fused extremities of the fibers without destroying them.
  • the inspection of the molten fiber mass can happen in a contactless way, or in a way that makes contact with the molten material. It is clear that a contactless inspection protects the inspection instruments against contaminations from the inspected materials, preventing that these instruments need to be cleaned.
  • An advantage of contact making inspection means is that they are generally less complex and less costly.
  • figure 1 represents a first step of the method for producing toothbrushes starting from a carrier element 1 in the form of a plate provided with openings 2 throughout the plate, wherein fibers 3 or fiber bundles have been shoved through the openings 2 in such a way that the fibers protrude from either side of the plate, respectively with a short part 4 and a long part 5.
  • the extremities 6 of the short part are fused together by applying heat to these extremities so that these extremities 6 are fused into a molten fiber mass 7.
  • the molten fiber mass 7 has the shape of one continuous film 8.
  • the molten fiber mass 7 can have the shape of discrete islands 9 as represented in figure 3 , or can have a defined topography 10 as represented in figure 4 .
  • the carrier element 1 can in an alternative embodiment be covered by a covering part 11 that is part of a handle 12 as represented in figure 5 and 6 , where the covering part 11 in the case of figure 5 is a preformed platelet which is fixed on the carrier element 1 and which in the case of figure 6 is a platelet which has been obtained by injection moulding.
  • the fused extremities 6 can be covered by a part of the handle 12 which acts as a covering part 11, whereby the handle 12 can either be of a preformed type as represented in figure 7 , or can be obtained by injection moulding as in figure 8 .
  • a further step of the method is the non-destructive inspection of the molten fiber mass 7, while this mass 7 is still in a molten condition.
  • FIG. 9 One way of executing such a non-destructive inspection is shown in figure 9 .
  • Figures 9 and 10 show a contactless inspection of the molten fiber mass 3 by means of an image recorder 13 which records an image of the molten fiber mass by means of triangulation techniques, whereby a recorder 13 registers a cloud of digital measuring points of the surface of the molten figure mass, and compares them with a reference image in a digital processing unit 15, as illustrated in figure 9 for three-dimensional images 14 and in figure 10 for two-dimensional images 16
  • the carrier element with the fused fibers can be accepted or refused and removed from the production process.
  • Another contactless way is the inspection by means of a camera which records an image of the molten fiber mass and compares it with a reference image in a digital way by a processing unit 15, as illustrated in figure 10 .
  • the image may comprise the colors of molten fiber mass, or may be a heat image which shows the heat distribution in the molten fiber mass, which can be a measure of the quantity of molten fiber mass and of its distribution.
  • the inspection of the molten fiber mass 7 can also happen through contact with the surface, for instance by means of one or more measuring rods 17, which make contact with the surface of the molten fiber mass 7.
  • the position 18 of each measuring rod 10 can then be compared with a reference position in a processing unit 15, as illustrated in figure 12 .
  • the carrier elements with fibers may also be sold as loose parts, with the intention for the end user to mount it onto a handle 12 so as to cover the molten fiber mass 7.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)
EP20100000457 2009-02-04 2010-01-19 Procédé pour la production de brosses sans moyens de fixation, en particulier des brosses à dents Active EP2215923B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2009/0059A BE1018439A3 (nl) 2009-02-04 2009-02-04 Methode voor het produceren van ankerloze borstels, meer bepaald tandenborstels.

Publications (2)

Publication Number Publication Date
EP2215923A1 true EP2215923A1 (fr) 2010-08-11
EP2215923B1 EP2215923B1 (fr) 2014-05-21

Family

ID=40941843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100000457 Active EP2215923B1 (fr) 2009-02-04 2010-01-19 Procédé pour la production de brosses sans moyens de fixation, en particulier des brosses à dents

Country Status (2)

Country Link
EP (1) EP2215923B1 (fr)
BE (1) BE1018439A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016008576A1 (fr) * 2014-07-15 2016-01-21 Zahoransky Ag Plaque de support et brosse, notamment brosse à dents, équipée d'une plaque de support

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635313A (en) * 1983-11-16 1987-01-13 North American Philips Corporation Brush with self retaining bristles
EP0405204A2 (fr) * 1989-06-24 1991-01-02 Frisetta GmbH Dispositif et procédé pour façonner une répartition de soies ou une touffe de soies
DE4302870A1 (de) * 1993-02-02 1994-08-04 Zahoransky Anton Fa Verfahren zum Herstellen von Bürsten und Bürstenherstellungsmaschine
DE19738256A1 (de) * 1997-09-02 1999-03-11 Rueb F A Holding Gmbh Verfahren und Vorrichtung zum Herstellen von Borstenfeldern sowie damit hergestelltes Borstenfeld
EP0972464A1 (fr) 1998-07-14 2000-01-19 Firma G.B. BOUCHERIE, naamloze vennootschap Procédé de fabrication de brosses et machine de fabrication de brosses pour l'application de ce procédé
EP1136016A1 (fr) * 2000-03-21 2001-09-26 G.B. Boucherie, N.V. Procédé et dispositif pour la fusion des extrêmités de poils
WO2003017801A1 (fr) * 2001-08-24 2003-03-06 Kao Corporation Procede de fabrication d'une brosse a dents
US20040117934A1 (en) * 2002-12-19 2004-06-24 Trisa Holding Ag Toothbrush and process for producing the same
EP2078472A1 (fr) * 2008-01-10 2009-07-15 G.B. Boucherie, N.V. Tampon pour presser des faisceaux de fibres

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635313A (en) * 1983-11-16 1987-01-13 North American Philips Corporation Brush with self retaining bristles
EP0405204A2 (fr) * 1989-06-24 1991-01-02 Frisetta GmbH Dispositif et procédé pour façonner une répartition de soies ou une touffe de soies
DE4302870A1 (de) * 1993-02-02 1994-08-04 Zahoransky Anton Fa Verfahren zum Herstellen von Bürsten und Bürstenherstellungsmaschine
DE19738256A1 (de) * 1997-09-02 1999-03-11 Rueb F A Holding Gmbh Verfahren und Vorrichtung zum Herstellen von Borstenfeldern sowie damit hergestelltes Borstenfeld
EP0972464A1 (fr) 1998-07-14 2000-01-19 Firma G.B. BOUCHERIE, naamloze vennootschap Procédé de fabrication de brosses et machine de fabrication de brosses pour l'application de ce procédé
EP0972465A1 (fr) 1998-07-14 2000-01-19 Firma G.B. BOUCHERIE, naamloze vennootschap Procédé de fabrication de brosses et machine de fabrication de brosses pour l'application de ce procédé
EP1136016A1 (fr) * 2000-03-21 2001-09-26 G.B. Boucherie, N.V. Procédé et dispositif pour la fusion des extrêmités de poils
WO2003017801A1 (fr) * 2001-08-24 2003-03-06 Kao Corporation Procede de fabrication d'une brosse a dents
US20040117934A1 (en) * 2002-12-19 2004-06-24 Trisa Holding Ag Toothbrush and process for producing the same
EP2078472A1 (fr) * 2008-01-10 2009-07-15 G.B. Boucherie, N.V. Tampon pour presser des faisceaux de fibres

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016008576A1 (fr) * 2014-07-15 2016-01-21 Zahoransky Ag Plaque de support et brosse, notamment brosse à dents, équipée d'une plaque de support
CN106455806A (zh) * 2014-07-15 2017-02-22 沙郎斯基股份公司 小支承板和刷子、尤其是具有小支承板的牙刷
CN106455806B (zh) * 2014-07-15 2019-01-01 沙郎斯基股份公司 支承板和刷子、尤其是具有支承板的牙刷
EP3169191B1 (fr) * 2014-07-15 2023-05-03 Zahoransky AG Procédé de fixation de faisceaux de poils constitués de filaments de poils sur une plaquette de support

Also Published As

Publication number Publication date
BE1018439A3 (nl) 2010-11-09
EP2215923B1 (fr) 2014-05-21

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