EP2587959B1 - Procédé et dispositif de production de brosses - Google Patents

Procédé et dispositif de production de brosses Download PDF

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Publication number
EP2587959B1
EP2587959B1 EP11730582.1A EP11730582A EP2587959B1 EP 2587959 B1 EP2587959 B1 EP 2587959B1 EP 11730582 A EP11730582 A EP 11730582A EP 2587959 B1 EP2587959 B1 EP 2587959B1
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EP
European Patent Office
Prior art keywords
base component
base
bristle
bristles
injection moulding
Prior art date
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Active
Application number
EP11730582.1A
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German (de)
English (en)
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EP2587959A1 (fr
EP2587959B2 (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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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/005—Preparing, i.e. Manufacturing brush bodies by moulding or casting a body around bristles or tufts of bristles
    • 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 invention relates to a method and an apparatus for producing brushes.
  • a brush body is provided with an array of holes ("hole pattern” or “hole pattern”) corresponding to the desired arrangement of bristles.
  • Bundles or tufts of bristles are then inserted into the holes of the brush body and anchored therein by means of impressed small metallic anchors or by means of loops.
  • the bristle tufts become small Brush head plate (hereinafter referred to as "base part") attached without the use of loops or anchors, and the base part is then inserted or fixed in a brush body or a handle.
  • base part small Brush head plate
  • brush handles are made with a hole pattern that corresponds to the desired tuft pattern. Bristle tufts are then inserted into these holes and attached to the brush handles. The attachment ends of the tufts are then covered with a small plate.
  • This base part becomes part of the brush itself after the backside injection of plastic material.
  • the bristle and the injection molding tool are coupled via the support plates with respect to the flow of material and timed to each other.
  • the shows EP 1 864 588 A2 a method of making brushes using a prefabricated backing plate to which bristle tufts are attached.
  • This carrier plate later forms a portion of the finished brush.
  • the carrier plate is located during production in a perforated field plate and is used together with this perforated field plate in an injection mold to inject a brush portion on the back of the carrier plate.
  • the use-side ends of the bristle bundles lie in a mold cavity of the mold surface of the injection mold and the edge of the support plate rests on the edge of the perforated field plate.
  • the object of the invention is to provide a flexible and cost-effective production of brushes.
  • Injection molding tool is preferably fully automatic.
  • the device according to the invention for producing brushes in particular with a method according to the invention, is characterized by an injection mold having a mold half with at least one cavity for receiving a bristled base part, wherein the cavity has an opening for receiving a plurality, preferably all bristle tufts, and one the opening surrounding Abstützrand for supporting and supporting the base part. Since the base part rests on the side of the mold half and this has inwardly of the edge an opening, the base part is not in contrast to the prior art is supported over the entire surface, but is inward of the edge preferably completely or at least largely unsupported.
  • the effort required for the production of the carrier plates significantly reduced because the carrier plates no longer migrate to the injection molding tool, whereby the timing of injection molding and bristle machine no longer necessarily be coupled together.
  • the method according to the invention thus provides for a hole plate-free feeding, positioning and back-molding of the base part.
  • In the injection molding tool is no elaborate perforated plate with numerous openings whose number corresponds to the number of openings in the base part, more available. This perforated plate was previously used in the injection mold as a support for the relatively thin base plastic, to absorb the injection pressure.
  • an opening in the region of the cavity to be ejected is provided in a mold half of the injection molding tool into which the plurality of bristle tufts protrude.
  • the base part is preferably exclusively or almost exclusively only with its peripheral edge on the edge of the opening extending from the cavity and is preferably supported only at this edge.
  • a back-injection molding of a separate support layer is provided, which forms a prefabricated unit with the bristled base part and leads to an increased flexural rigidity.
  • the other alternative according to the invention provides for the bristle ends of the bristle tufts to first fuse together, which usually takes place in a perforated plate which is equipped with the bristle tufts and is expensive to produce. Subsequently, this perforated plate is transported in an injection mold to overmold the tufts. This results in a plate-like base part, in which the bristle tufts are positively and securely embedded at their point of fusion. In the state of the art, this base part has always also been, together with the carrier plate or perforated plate, in another injection molding tool or another station of an injection molding tool transported. The carrier plate served to support against the injection pressure during injection molding of the brush body (head and stem).
  • the present invention provides that these provided with the hole pattern of the brush carrier plates when making the brush body no longer provide as support plates in the injection mold.
  • the base part is now supported on the edge of an opening in a cavity of the mold half.
  • the tufts protrude into the opening, which is very easy to produce due to their size.
  • the encapsulation of the tufts results in a very stable plate (base part), which can withstand the injection pressure, although here too the base part inwards of the edge is not supported or at least largely unsupported.
  • the invention relates, as stated, a nontacky production of brushes.
  • the bristle tufts are not individually held in holes of a perforated plate by lateral interference fit in contrast to the perforated plate in injection molding, but protrude freely in the opening of the mold half and are held by the base part.
  • the base part is held on the edge in the cavity.
  • the base part lies with its edge closed circumferentially on the likewise closed circumferential edge of the opening, so that a sealing effect is achieved.
  • the injection molding of the support layer takes place in a separate device or station, which is passed through before the final injection molding in the aforementioned mold half.
  • the entire production and the entire apparatus can manage with significantly less perforated plates.
  • the bristled base parts can also be purchased.
  • the base parts remain support-free in the region of the opening during spraying.
  • punctiform or linear support projections may press in the opening against the base member to support it during injection molding.
  • One of the preferred embodiments provides in this case that the support extensions to the base part conical, preferably even tapered. This allows them to slide between adjacent bristles without damaging the bristles.
  • the tufts of the tufts projecting from the rear side are glued or melted, e.g. by hot air, heat radiation or contact heat (pressing a hot tool).
  • the contacting and flattening of the liquefied tuft ends is advantageous in that a dense, preferably closed surface of molten plastic is formed. This tightness is advantageous for the subsequent injection molding.
  • the support layer is preferably applied flat, that is, in the preferred embodiment, even over the entire surface. At most, the edge of the base part, with which it rests against the mold half, remains uncovered.
  • the support layer can also be formed in that the still unsecured bristle tufts are attached to the rear side by encapsulation by means of the support layer.
  • the step of applying the support layer simultaneously serves to attach the tufts to the base part.
  • the bristle tufts partially extend to near the edge of the base part, it may be advantageous to use a so-called insertion tool on To use injection molding tool.
  • This insertion tool pushes the bristles slightly inwardly and together to facilitate easier insertion of the bristles into the common opening of the mold half. As a result, no bristles can get stuck on the edge of the opening and bend.
  • the mold half with the at least one cavity can also, and this is preferably formed in several parts.
  • a first and a second molded part if appropriate also further molded parts with in particular a plurality of juxtaposed cavities or rows of cavities, can be used.
  • the cavity associated with a brush is then divided into several sections, for example into a section in the first and into a section in the second shaped part. These cavities merge into one another and form the total cavity of the mold half.
  • the first molded part is separable from the second molded part and serves as a means of transport for or sitting in it base parts.
  • the first molded part can be fitted independently of the second molded part first with the bristled base parts and only then be coupled to the second molded part, namely immediately prior to injection molding.
  • the first molded part is very easy to produce due to the lack of hole pattern, many first molded parts can be manufactured and used relatively inexpensively, which significantly improves the cycle time and flexibility of the entire device.
  • a separation station between the bristle machine and the injection molding tool can be provided to quickly clear the bristle machine again for equipping with base parts still to be bristled.
  • a coating tool which may also be embodied as a single station in the then multi-station injection molding tool, should be positioned between the bristle machine and the injection molding tool, that is, possibly the station where the aforementioned spattering of the coated, bristled base part occurs. In this Coating tool or in this coating station, the support layer is applied.
  • the so-called brush body is injection-molded in the injection molding tool, which can be designed in one or more parts.
  • This brush body is usually the brush handle, the brush neck and a part of the brush head.
  • the other part of the brush head is formed by the base part.
  • FIG. 1 a so-called perforated plate 10 of a device consisting of several tools and stations for the production of brushes is shown.
  • the perforated plate 10 is made of metal and preferably has a plurality of very precisely produced cavities 12, in which prefabricated base parts 14 of brushes, here toothbrushes, are inserted.
  • the base parts 14 are used for anchorless attachment of bristle tufts.
  • the base parts 14 have a peripheral, parked up edge and a hole pattern for filling by the bristle tufts.
  • the cavity 12 has a corresponding hole pattern. The production of such a cavity with hole pattern is very complicated and usually takes place by wire erosion or jig grinding.
  • the base parts are then filled with the bristle tufts, as for example in the EP 0 972 465 B1 is shown.
  • the perforated plate 10 serves as a transport body and also for storage and guidance of the bristle tufts, which protrude into the corresponding holes in the perforated plate.
  • the portion of the bristle tufts protruding into the holes is the part of the bristles that later protrudes from the brush.
  • FIG. 2 the hole pattern of the perforated plate 10 can be seen from above.
  • FIG. 3 shows the base parts 14 inserted into the corresponding cavities 12, wherein it can be clearly seen that the base parts 14 are received exactly and accurately in the cavities 12.
  • There are numerous perforated plates are provided in the bristle machine, which are preferably equipped in or outside the bristle machine with the base parts and then beborstet. The perforated plates 10 are finally transferred after the bristle machine in another machine or in another station, including the bristled base parts contained therein, in order to carry out a further processing step can.
  • FIG. 4 shows the bristled base parts 14 in the perforated plate 10, wherein the bristle tufts 16 protrude with its rear end relative to the base member 14 upwards.
  • the bristles are fastened together at their protruding ends 16 and also connected to the base part 4. This is done for example by means of thermal bonding of the protruding ends of the tufts 16 by hot air, radiant heat and / or by contact heat.
  • an electrically heated tool with a plurality of heated punches 18 is provided, which are connected to a power source 20.
  • the cross section of the punches 18 is adapted to the circumscribed by the edge of the corresponding base part 14 cross section.
  • the bristle ends 14 may also first be brought to temperature and fused without the punches contacting them. Only then are the rams 18 moved down to flatten the liquid plastic mass of the molten ends, so that a possible closed plastic layer 22 results from the molten material of the tufts. Although it is advantageous that a flat, closed layer 22 results on the back of the base member 14, but this is not mandatory. There could just as well be individual thickenings of bristle tufts 16, which result from the fusing of the individual bristles of a bristle tuft.
  • FIG. 6 shows another tool that can also be designed as a station of a larger device. This is a so-called coating tool.
  • the bristled base parts 14 located in the perforated plate 10 are preferably still in the perforated plate 10 to the in FIG. 6 Transported coating tool shown and inserted there in a lower part 24 of an injection molding tool.
  • An upper 26 with adapted cavities 28 on its underside may be moved downwardly against the base 24 to close the cavity 28 downwardly through the corresponding base 14 so as to provide a cavity.
  • a plastic compound is then injected, which covers the back of the bristled base member 14 preferably completely, if necessary, except for the peripheral edge.
  • This applied layer is a support layer 30, which gives the unit of base part 14 and bristle tufts 16 a higher rigidity.
  • the support layer 30 is in FIG. 7 to recognize.
  • the intermediates produced are removed from the perforated plates 10 in a separation station.
  • These intermediates can be stored in a store or stored unsorted, or they can immediately after their removal from the perforated plate 10 to a another machine, namely the below-explained injection molding tool to be transported.
  • the injection mold is in FIG. 14 to recognize. It essentially comprises a lower mold half 40 and an upper mold half 42, each having cavities which merge into each other in the closed state of the tool and form a cavity to be ejected.
  • the lower mold half 40 comprises at least two parts, namely a first mold part 44, which the aforementioned and in FIG. 8 and a second mold part 46.
  • the first mold part 44 is shown in FIG FIG. 9 good to see from above. It has a plurality of cavities 46, from each of which an opening 48 extends, which serves to receive the bristle tufts 16 of a base part 14.
  • the edge 50 which is recessed and part of the cavity 46, surrounds the respective opening 48. This edge 50 serves as a supporting and supporting surface for the bristled base part 14.
  • the cavity 46 also has a neck portion 52 as a transition between brush head and later still shown brush handle.
  • This neck portion 52 is how FIG. 14 shows, in the stem of the brush defining portion 56 of the cavity in the second mold part 46 via.
  • the first molded part 44 is fitted with the prefabricated intermediate products by using an insertion tool 58, which can consist of a plurality of plates to be moved on one another.
  • This insertion tool 58 may also be provided in the form of a funnel.
  • the insertion tool 58 serves to push the bristle tufts 16 inwardly towards each other to prevent abutment of the marginal bristles on the edge 50.
  • the insertion tool 58 is removed prior to complete introduction of the intermediates into the corresponding cavity and opening 46, 48.
  • the assembly of the first molded part 44 can preferably be done outside the injection molding tool or in a lying before the injection molding station in the injection mold, as for example in the so-called helicopter tools according to eg DE 195 15 294 A or dice tools according to eg WO 2007/085063 the case is. With such tools, the assembly can take place during the injection process, with the tool closed. Alternatively, the assembly can take place in an open tool between two injection cycles. In this case, you lose some cycle time, as the tool must remain open a little longer after an injection cycle, until the assembly is completed.
  • FIG. 12 is the assembled first molded part 44 to be seen from above, in FIG. 13 from underneath. It can also be seen that the tufts 16 hang freely cantilevered in the opening 48.
  • the first mold parts 44 form transport parts for the bristled base parts 14 and transport them corresponding to the associated second mold parts 46. These mold parts 46 have a recess 60 into which the molded part 44 is inserted accurately. Subsequently, the injection mold is closed, and the injection molding process can take place.
  • the first mold part 44 with the molded-on brush body 62 is removed from the injection mold, and the finished brushes are separated from the first mold part 44.
  • the injection molding machine has even more stations for the other components.
  • the first mold part 44 serve as a means of transport between the stations.
  • support extensions 70 projecting from a bottom of the opening 48 or starting from the second shaped part 46 in the region of the recess 60, projecting upwards into the opening in the direction of the base part 14.
  • the support extensions 70 are linear or, as shown, selective support points and preferably run conically towards the base member 14 in order to push between bristles can.
  • the base part is not made before the welding of the bristle ends, but afterwards.
  • a bristle tool bristle tufts 16 are inserted into holes of a perforated plate 10 with a corresponding cavity 80 for the later to be produced base part ( FIG. 16 ).
  • the upwardly projecting bristle ends of the bristle tufts 16 are first fused together.
  • this perforated plate 10 is transported in an injection mold to overmold the tufts 16. If the bristle ends are fused to a flat plastic plate and not to a ball-like thickening, the base member 14 is essentially only sprayed on, but should also fall under "encapsulation".
  • the bristled base parts 14 are rather separated from the perforated plates 10 ( FIG. 19 ) and either fed to a previously described storage / buffer and later or immediately according to the FIGS. 9 to 15 further processed.
  • the bristled base parts 14 must therefore be inserted into the first mold parts 44 (eg fully automatically), in order then to be transported to the injection molding tool.
  • the injection molding process is carried out as described in the firstticiansbeipiel.
  • the base part is supported at the edge of an opening 48 in a cavity 46 of the mold half.
  • the brush 16 protrude into the opening 48, which is very easy to produce due to their size.
  • the device for producing brushes may consist only of the injection molding tool or alternatively also from other tools such as the bristle tool and / or in the FIGS. 6 and 7 shown coating tool. Separation stations and placement stations between individual tools or stations can be provided in which intermediate products of tool parts or carrier parts are removed or inserted into them.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Coating Apparatus (AREA)

Claims (14)

  1. Procédé de fabrication de brosses au moyen d'un dispositif, caractérisé par les étapes suivantes :
    a) au moins une pièce de base (14) préfabriquée est prévue, sur laquelle des touffes de poils (16) sont fixées et qui forme un tronçon de la brosse finie, une couche de soutien séparée (30) étant appliquée sur la pièce de base (14) du côté arrière, ou au moins une pièce de base (14) préfabriquée est prévue, laquelle est réalisée par enrobage par injection de plusieurs touffes de poils (16) qui présentent des extrémités de poils préalablement fondues les unes sur les autres,
    b) la pièce de base (14) empoilée est amenée vers et positionnée sur un outil de moulage par injection, chaque pièce de base (14) reposant dans une cavité (46) d'un demi-moule de l'outil de moulage par injection avec son bord sur le bord (50) d'une ouverture (48) partant de la cavité (46) associée, et les touffes de poils (16) faisant saillie dans l'ouverture, et
    c) un tronçon de brosse est moulé par injection sur la pièce de base du côté arrière.
  2. Procédé selon la revendication 1, caractérisé en ce que les pièces de base sont extraites d'un stock pour pièces de base empoilées et sont amenées vers l'outil de moulage par injection.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les pièces de base restent sans support dans la zone de l'ouverture lors du moulage par injection.
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que des saillies de support ponctuelles ou linéaires dans l'ouverture poussent entre des poils contre la pièce de base pour la soutenir lors du moulage par injection.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que des touffes de poils sont enfichées dans des trous de réception de la pièce de base préfabriquée dans une machine d'empoilage, et en ce que les touffes de poils sont ensuite fixées sans ancrage sur la pièce de base du côté arrière, en particulier par fusion des poils, par collage ou par enrobage par injection, les pièces de base étant empoilées en étant agencées sur des plaques perforées de la machine d'empoilage, les plaques perforées présentant une configuration de perçage qui correspond à la configuration de perçage des pièces de base.
  6. Procédé selon la revendication 5, caractérisé en ce qu'après l'empoilage et la fixation des touffes de poils sur la pièce de base du côté arrière, la couche de soutien est appliquée de manière plane, en particulier par moulage par injection, au maximum un tronçon de bord de la pièce de base restant de préférence non recouvert par la couche de soutien.
  7. Procédé selon la revendication 5 ou 6, caractérisé en ce que l'application de la couche de soutien est réalisée à l'extérieur de la machine d'empoilage et après ou avant le retrait des pièces de base empoilées hors des plaques perforées.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu un outil d'insertion qui comprime les poils avant ou pendant l'introduction de la pièce de base dans l'outil de moulage par injection pour les insérer dans l'ouverture du demi-moule.
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que les touffes de poils sont introduites dans une plaque perforée qui présente la configuration de perçage de la brosse à fabriquer et en ce que les poils des touffes sont fondus du côté arrière et ensuite, en étant encore agencés dans la plaque perforée, sont enrobés par injection de manière à former la pièce de base, la pièce de base empoilée étant retirée de la plaque perforée avant l'injection du corps de brosse sur la pièce de base.
  10. Dispositif de fabrication de brosses au moyen d'un procédé selon l'une des revendications précédentes, caractérisé par un outil de moulage par injection qui comprend un demi-moule présentant au moins une cavité (46) pour la réception d'une pièce de base (14) empoilée, la cavité (46) présentant une ouverture (48) pour la réception de plusieurs, de préférence de toutes les touffes de poils et un bord de support qui entoure l'ouverture (48) pour l'appui et le support de la pièce de base.
  11. Dispositif selon la revendication 10, caractérisé en ce qu'il est prévu plusieurs cavités dans le demi-moule.
  12. Dispositif selon la revendication 10 ou 11, caractérisé en ce que le demi-moule présentant ladite au moins une cavité est réalisé en plusieurs pièces et comprend une première et une deuxième pièce de moule qui présentent toutes les deux des tronçons de ladite au moins une cavité qui se confondent, et la première pièce de moule étant apte à être séparée de la deuxième et étant réalisée sous forme de pièce de transport pour ladite au moins une pièce de base.
  13. Dispositif selon l'une des revendications 10 à 12, caractérisé par une machine d'empoilage dans laquelle des plaques perforées et des pièces de base sont couplées les unes aux autres, un poste de séparation étant prévu devant l'outil de moulage par injection, dans lequel les pièces de base empoilées sont séparées de leurs plaques perforées associées.
  14. Dispositif selon l'une des revendications 10 à 13, caractérisé par un outil de revêtement qui est positionné entre la machine d'empoilage et l'outil de moulage par injection et applique une couche de soutien du côté arrière sur la pièce de base empoilée.
EP11730582.1A 2010-07-02 2011-07-04 Procédé et dispositif de production de brosses Active EP2587959B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010025852A DE102010025852A1 (de) 2010-07-02 2010-07-02 Verfahren und Vorrichtung zum Herstellen von Bürsten
PCT/EP2011/003310 WO2012000689A1 (fr) 2010-07-02 2011-07-04 Procédé et dispositif de production de brosses

Publications (3)

Publication Number Publication Date
EP2587959A1 EP2587959A1 (fr) 2013-05-08
EP2587959B1 true EP2587959B1 (fr) 2017-10-25
EP2587959B2 EP2587959B2 (fr) 2020-05-27

Family

ID=44628263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11730582.1A Active EP2587959B2 (fr) 2010-07-02 2011-07-04 Procédé et dispositif de production de brosses

Country Status (5)

Country Link
EP (1) EP2587959B2 (fr)
CN (1) CN103037734B (fr)
DE (1) DE102010025852A1 (fr)
ES (1) ES2657248T3 (fr)
WO (1) WO2012000689A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013186674A1 (fr) * 2012-06-12 2013-12-19 Braun Gmbh Tête de brosse et procédé et outil de production de celle-ci
EP2674061B1 (fr) 2012-06-12 2017-07-19 Braun GmbH Procédé et outil de production d'une tête de brosse
IES20160032A2 (en) * 2016-01-25 2017-07-26 Glaxosmithkline Consumer Healthcare (Uk) Ip Ltd A method of moulding a turfed body with a curved outer surface
CA3021605A1 (fr) 2016-04-20 2017-10-26 Trisa Holding Ag Produit de type brosse et procede de fabrication
EP3700386A1 (fr) 2017-10-24 2020-09-02 Koninklijke Philips N.V. Procédés de fabrication de tête de brosse utilisant un support de touffes moulé et une plaque de base
WO2019091603A1 (fr) * 2017-11-07 2019-05-16 Koninklijke Philips N.V. Procédé de fabrication de tête de brosse, et tête de brosse
CN109330178A (zh) * 2018-11-23 2019-02-15 幸福草(上海)口腔护理用品有限公司 一种牙刷制造用模具及牙刷制造方法
WO2024007571A1 (fr) * 2023-01-17 2024-01-11 赫比（厦门）精密塑胶制品有限公司 Dispositif de fixation de tête de brosse pour la production de tête de brosse à dents et procédé de fabrication de tête de brosse à dents

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4311186A1 (de) 1993-04-06 1994-10-13 Schiffer Fa M & C Verfahren und Vorrichtung zur Herstellung von Bürstenwaren
DE19515294A1 (de) 1995-04-26 1996-10-31 Zahoransky Formenbau Gmbh Bürstenherstellungsmaschine
DE19542393A1 (de) 1995-11-14 1997-05-15 Zahoransky Anton Gmbh & Co Verfahren zum Herstellen von Bürsten sowie Bürstenherstellungsmaschine
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
EP1110478A1 (fr) 1999-12-22 2001-06-27 M + C Schiffer GmbH Procédé pour la fabrication d'une tête à brosse par moulage par injection
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WO2006005216A1 (fr) 2004-07-12 2006-01-19 Trisa Holding Ag Procede et dispositif pour produire une brosse a dents en moulage par injection bimatiere ou multimatiere
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CN103037734B (zh) 2015-11-25
ES2657248T3 (es) 2018-03-02
EP2587959A1 (fr) 2013-05-08
DE102010025852A1 (de) 2012-03-29
CN103037734A (zh) 2013-04-10
EP2587959B2 (fr) 2020-05-27
WO2012000689A1 (fr) 2012-01-05

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