EP1088495A1 - Brosse, procédé et dispositif pour fabriquer une telle brosse - Google Patents

Brosse, procédé et dispositif pour fabriquer une telle brosse Download PDF

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Publication number
EP1088495A1
EP1088495A1 EP00203118A EP00203118A EP1088495A1 EP 1088495 A1 EP1088495 A1 EP 1088495A1 EP 00203118 A EP00203118 A EP 00203118A EP 00203118 A EP00203118 A EP 00203118A EP 1088495 A1 EP1088495 A1 EP 1088495A1
Authority
EP
European Patent Office
Prior art keywords
brush
anchoring
wire
narrowing
filling tool
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.)
Withdrawn
Application number
EP00203118A
Other languages
German (de)
English (en)
Inventor
Bart Georges 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
Original Assignee
GB Boucherie NV
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 GB Boucherie NV filed Critical GB Boucherie NV
Publication of EP1088495A1 publication Critical patent/EP1088495A1/fr
Withdrawn legal-status Critical Current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
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/04—Machines for inserting or fixing bristles in bodies
    • A46D3/042—Machines for inserting or fixing bristles in bodies for fixing bristles using an anchor or staple

Definitions

  • This invention relates to a brush, as well as to a method and a device for manufacturing such brush.
  • the present invention relates to brushes of the last-mentioned type, in other words, wherein the fixation of the fiber bundles is performed by means of anchoring plates.
  • the aim of the invention consists in providing an improved brush of this type.
  • the invention in the first place relates to a brush comprising a brush body which is provided with openings, as well as with fiber bundles fixed in these openings by means of anchoring plates, with as a characteristic that this brush comprises anchoring plates which are provided with at least one portion narrowing towards the underside.
  • a first advantage consists in that they can be brought into the pertaining openings in an easier manner.
  • a second advantage consists in that during the penetration of the anchoring plates into the material of the brush body, the risk of forming chips or wire edges is excluded, if not the formation thereof is minimized. As a consequence thereof, it is avoided that material particles of the brush body get into the openings and between the brush fibers which, up to the present, forms a problem with the known embodiments, as such material particles can hamper the correct position of the brush fibers and/or anchoring plates, which may result in a faulty implantation of the fiber bundles, in respect to the positioning of the fibers as well as to the quality of the fixation.
  • a third advantage of the invention consists in that the material of the brush body, in any case if the latter consists of a relatively flexible material, such as synthetic material, is not scraped away during the penetration of the anchoring plates, but is pushed sideward in order to, so to speak, close again behind the anchoring plate, as a result of which the anchoring plate is prevented to move back, which provides in a better fixation of the anchoring plate in the respective opening and therefore also in a better fixation of the fiber bundles.
  • a fourth advantage of the invention consists in that the risk of the occurence of cracks and fractures in the brush body as a result of the application of the anchoring plates is minimized.
  • tapering portion preferably is realized in such a manner that the creation of chips and/or wire edges during the penetration of the anchoring plate is avoided.
  • the tapering portion is realized such that a cutting effect of the anchoring plate during penetration is obtained.
  • such portion will be formed by one or more inclined portions, preferably at the location of the bottom edge of such anchoring plate, in other words, the edge fo the anchoring plate which is directed towards the bottom of the pertaining opening.
  • the tapering portion is formed in that the respective anchoring plates, at least at one of the two major lateral surfaces, are provided with at least one deformation, more particularly an inclined portion or such.
  • an inclined portion is provided at both major lateral surfaces of such anchoring plate, which inclined portions come together at the bottom edge of the anchoring plate.
  • such tapering portion and more particularly the inclined portion, is realized such that the anchoring plate, at least at the locations where it comes into contact with the material of which the brush body is made, tapers to a point.
  • the bottom edge of the anchoring plate or anyhow at least the portion of the bottom edge coming into contact with the fiber bundles, can be realized such that it is free of acute edges, to which end the bottom edge, for example, can be rounded or flattened. As a result thereof, it is excluded that the fiber bundles are damaged by the insertion of the anchoring plates.
  • the anchoring plate is provided at the upper side, either at one or both of the longitudinal edges, or at one or both of the narrow edges, or at the longitudinal as well as the narrow edges, with a design counteracting the forcing back of the anchoring plate.
  • the anchoring plate can be provided with a classical flat upper side.
  • the anchoring plate can be provided at the upper side with one or more edge portions showing in cross-section an acute angle, in other words, an angle which is smaller than 90°.
  • the invention also relates to a method for manufacturing such brush, whereby the brush hair is implanted into a brush body by placing fiber bundles by means of a filling tool into openings in the brush body and fixing them by means of anchoring plates, with as a characteristic that anchoring plates are applied which, at the edge with which they are pressed into the aforementioned openings, are provided with a narrowed portion, more particularly an inclined portion.
  • the aforementioned method either or not can be realized on a classical device for manufacturing brushes.
  • the first possibility for realizing the anchoring plates, one starts with a wire supply with wire in which the aforementioned narrowed portion already is provided.
  • the narrowing portion is formed partially or completely at the location of the brush manufacturing machine itself.
  • the invention thus also relates to a device for manufacturing brushes which is composed of at least a filling tool; means for positioning brush bodies and the filling tool opposite each other; means for supplying fiber bundles to the filling tool; and means for supplying wire to the filling tool in order to form anchoring plates therefrom, with as a characteristic that this device is also equipped with means for providing a narrowing portion, more particularly one or more inclined portions, at the wire and/or the anchoring plates.
  • FIG 1 schematically a known device 1 is represented which allows to attach fiber bundles 2 in openings 3 in brush bodies 4, such by means of anchoring plates 5, as represented in figure 2.
  • This device 1 comprises a filling tool 6; means 7 for positioning brush bodies 4 and the filling tool 6 opposite each other; means 8 for supplying fiber bundles 2 to the filling tool 6; and means 9 for supplying a wire 10 to the filling tool 6 in order to form anchoring plates 5 therefrom.
  • the filling tool 6 comprises a guide 11 by means of which a fiber bundle 2, by means of an anchoring plate 5, can be pressed into an opening 3, such by means of a rod 12 moving to and fro.
  • the means 8 for supplying fiber bundles 2 to the filling tool 6 consist of a to-and-fro rotating bundle-take up device 13 which is provided with a recess 14 cooperating with at least one fiber magazine 15 in which a quantity of loose fibers 16 is provided, in such a manner that in every cycle of the fiber bundle-take up device 13, a quantity of fibers 16 is taken up in the recess 14 and is brought into the prolongation of the guide 11.
  • the aforementioned means 9 consist of a spool 17 with wire 10 which is supplied to the filling tool 6, from which wire 10 the anchoring plates 5 are cut off by means of the rod 12.
  • the means 7 for positioning the brush bodies 4 and the filling tool 6 opposite each other can be of any kind. In the represented example, they consist of a movable brush body holder 18.
  • the method followed herein for manufacturing the brushes 19 consists in that the brush bodies 4, one after the other, are presented with their openings 3 in front of the filling tool 6, and that each time, by means of the bundle-take up device 13, a fiber bundle 2 is brought into the prolongation of the guide 11. By moving the rod 12 to and fro, a piece of material is cut off from the extremity of the wire 10, which then forms the anchoring plate 5, and the fiber bundle 2 is taken along with the movement of the anchoring plate 5 out of the recess 20 up into the brush body 4.
  • the known anchoring plates 5 have a prismatically rectangular shape, such as represented in figure 2, during implantation in the brush body 4 an effect is created, as represented schematically in figures 3 and 4, according to which material particles 21, in the form of chips or such, are formed.
  • material particles 21 may disturb the good positioning of the fibers 16, as well as of the anchoring plates 5, as explained in the introduction.
  • a number of fibers 16, for example, as represented in figure 3, may become skew, as a result of which the brush hair obtain a " drifted" appearance.
  • this is remedied, or the aforementioned effect at least is minimized, by making use of anchoring plates 22 which are provided with at least one portion 23 narrowing towards the bottom side, in such a manner that the anchoring plates 22 can penetrate into the openings 3 more easily, without thereby creating a chipping effect.
  • the anchoring plate 22 is provided with a narrowing portion 23 in that inclined portions 24-25 are provided at opposite sides of the bottom edge 26, in this case, at the major lateral surfaces 27-28.
  • bottom edge according to the invention the edge of the anchoring plate 22 has to be understood which is directed towards the bottom of the respective opening 3.
  • the inclined portions 24-25 extend over the entire length of the bottom edge 26 and render the anchoring plate 22 in cross-section tapering to a point.
  • the aforementioned narrowing portion 23 can be realized in different ways. A number of variants thereof is represented in figures 10 to 22.
  • Figure 10 shows an anchoring plate 22 whereby the narrowing portion 23 is formed by an inclined portion 24 on one side.
  • the inclined portions 24 and 25 extend over the entire height of the anchoring plate 22, which means that the aforementioned portion 23 in fact consists of the entire anchoring plate 22.
  • the inclined portions do not necessarily have to be realized at the lateral surfaces 27-28, but may also be provided at the narrow sides 31-32, as indicated by references 33 and 34 in figures 12 and 13.
  • Figures 14 and 15 show a combination in which inclined portions 24 and 25, as well as 33 and 34 are applied.
  • the narrowing portion 23 can be realized by any shape alteration.
  • any alteration of shape in the cross-section of the anchoring plate 22 which contributes to the exclusion of the creation of material particles 21 and/or contributes to that the anchoring plate 22 can be brought more optimally into the pertaining opening 3.
  • Figure 17 shows another variant, whereby the narrowing portion 23 is situated at a distance from the bottom edge 26.
  • the anchoring plate 22 consists of a bottom part with a width B1 which preferably is smaller than the diameter of the opening 3, and of a top part with a width B2 which is larger than the aforementioned diameter.
  • anchoring plates 22 are represented, the bottom edge of which does not show an acute edge, so as to prevent that the anchoring plate 22, when being inserted into the brush body 4, damages the fiber bundles 2.
  • the bottom edge 26 is flatted, at least that portion coming into contact with the fiber bundles 2, or, in a second possibility, this bottom edge 26 is rounded, as represented in figures 19 and 20.
  • the anchoring plate 22 at its upper side is provided with a design which counteracts the forcing back of this anchoring plate 22. More particularly, such anchoring plate 22 to this end, as represented in figures 21 and 22, will be provided with one or more edge portions 37 which, in cross-section, define an acute angle, in other words, an angle H which is smaller than 90°, and even better is smaller than 45°.
  • the invention relates to brushes 19, the fiber bundles 2 of which are attached by means of such anchoring plates 22, as well as to such anchoring plates 22 themselves.
  • the invention is not restricted to tooth brushes but can be applied to any kind of brush 19.
  • the manufacturing of brushes 19 can take place by means of a device known in itself, more particularly a device 1 as has been described by means of figure 1. According to the process of the invention, hereby, then, anchoring plates 22 are applied which, as aforementioned, are provided with a narrowing portion 23.
  • a wire 10 is supplied, at which the aforementioned narrowing portion 23 already is formed, for example, by supplying a wire 10 to this entry which wire has a cross-section as represented in figure 23.
  • a wire supply more particular a wire 10 wound up in the shape of a spool 17, and the wire 10 is deformed during its feeding from this wire supply towards the filling tool 6 in order to create the aforementioned narrowing portion 23, for example, such as represented schematically in figure 24, according to which a wire 10 with a rectangular cross-section is re-shaped to a wire with a cross-section according to figure 23.
  • means 38 are provided between the spool 17 and the filling tool 6 for providing a narrowed portion, more particular an inclined portion 24-25 at the wire 10.
  • These means 38 can be of any kind and may, for example, consist of a rolling device or similar.
  • the inclined portions 33 and 34 can be realized by providing in the filling tool 6 for a flattening of the edges of the anchoring plates 22.
  • anchoring plates 22 can easily be realized by starting with a wire 10 with an appropriate shape, without having to perform a shape alteration when manufacturing the brushes 19.
  • the narrow sides 31 and 32 then also remain parallel over their entire height, as a result of which at least the same clamping height H1 remains maintained as with classical anchoring plates 5.
  • the classical anchoring plates made of metal possibly can be replaced by anchoring plates made of synthetic material.
  • the force required to drive plates according to the invention into the brush body is smaller than with classical rectangular plates, in fact plates of a material which is less solid than metal can be applied, which was a problem up to the present.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)
EP00203118A 1999-09-28 2000-09-08 Brosse, procédé et dispositif pour fabriquer une telle brosse Withdrawn EP1088495A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9900646 1999-09-28
BE9900646A BE1012911A3 (nl) 1999-09-28 1999-09-28 Borstel, alsmede werkwijze en inrichting voor het vervaardigen van dergelijke borstel.

Publications (1)

Publication Number Publication Date
EP1088495A1 true EP1088495A1 (fr) 2001-04-04

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EP00203118A Withdrawn EP1088495A1 (fr) 1999-09-28 2000-09-08 Brosse, procédé et dispositif pour fabriquer une telle brosse

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EP (1) EP1088495A1 (fr)
BE (1) BE1012911A3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004089157A1 (fr) 2003-04-12 2004-10-21 Braun Gmbh Poussoir pour un outil de bourrage servant a enfoncer un element de retenue en forme de bande dans un trou, recevant une touffe de poils, d'une tete de brosse a dents
BE1015263A3 (fr) 2001-12-21 2004-12-07 Zahoransky Anton Gmbh & Co Procede et dispositif pour la fabrication de brosses.
EP2550893A1 (fr) * 2011-07-23 2013-01-30 Braun GmbH Instrument de nettoyage buccal ayant une agrafe en plastique comprenant une cavité
WO2021253261A1 (fr) * 2020-06-17 2021-12-23 Colgate-Palmolive Company Brosse à dents et fil d'ancrage associé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237653A2 (fr) * 1985-12-20 1987-09-23 G.B. Boucherie, N.V. Brosse, procédé et appareil pour la production d'une telle brosse
DE4418854A1 (de) * 1994-05-30 1995-12-07 Zahoransky Anton Gmbh & Co Bürste sowie Spritzgußform sowie Verfahren zum Herstellen eines zugehörigen Bürstenkörpers
DE19519291A1 (de) * 1995-05-26 1996-11-28 Zahoransky Anton Gmbh & Co Bürste
US5724697A (en) * 1996-08-02 1998-03-10 Colgate-Palmolive Company Toothbrush construction
DE19650543A1 (de) * 1995-08-04 1998-06-10 Richard Prof Dr Ing Zahoransky Bürstenstopfmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237653A2 (fr) * 1985-12-20 1987-09-23 G.B. Boucherie, N.V. Brosse, procédé et appareil pour la production d'une telle brosse
DE4418854A1 (de) * 1994-05-30 1995-12-07 Zahoransky Anton Gmbh & Co Bürste sowie Spritzgußform sowie Verfahren zum Herstellen eines zugehörigen Bürstenkörpers
DE19519291A1 (de) * 1995-05-26 1996-11-28 Zahoransky Anton Gmbh & Co Bürste
DE19650543A1 (de) * 1995-08-04 1998-06-10 Richard Prof Dr Ing Zahoransky Bürstenstopfmaschine
US5724697A (en) * 1996-08-02 1998-03-10 Colgate-Palmolive Company Toothbrush construction

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1015263A3 (fr) 2001-12-21 2004-12-07 Zahoransky Anton Gmbh & Co Procede et dispositif pour la fabrication de brosses.
WO2004089157A1 (fr) 2003-04-12 2004-10-21 Braun Gmbh Poussoir pour un outil de bourrage servant a enfoncer un element de retenue en forme de bande dans un trou, recevant une touffe de poils, d'une tete de brosse a dents
DE10316963A1 (de) * 2003-04-12 2004-11-04 Braun Gmbh Stößel für ein Stopfwerkzeug zum Eintreiben eines streifenförmigen Halteelements in ein Borstenbüschel aufnehmendes Bohrloch eines Zahnbürstenkopfes
CN100464669C (zh) * 2003-04-12 2009-03-04 布劳恩股份有限公司 推杆
US8052222B2 (en) 2003-04-12 2011-11-08 The Procter & Gamble Company Bristle cluster stuffing tool ram and method of use
EP2550893A1 (fr) * 2011-07-23 2013-01-30 Braun GmbH Instrument de nettoyage buccal ayant une agrafe en plastique comprenant une cavité
WO2013014600A1 (fr) * 2011-07-23 2013-01-31 Braun Gmbh Instrument de soin buccal qui comporte une agrafe en plastique présentant une cavité
US9119462B2 (en) 2011-07-23 2015-09-01 Braun Gmbh Oral cleaning implement having a plastic staple comprising a cavity
WO2021253261A1 (fr) * 2020-06-17 2021-12-23 Colgate-Palmolive Company Brosse à dents et fil d'ancrage associé

Also Published As

Publication number Publication date
BE1012911A3 (nl) 2001-05-08

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