EP1726237A1 - Brosse et son procédé de fabrication - Google Patents

Brosse et son procédé de fabrication Download PDF

Info

Publication number: EP1726237A1
Authority: EP; European Patent Office
Prior art keywords: brush; brush head; layer; top layer; functional elements
Prior art date: 2005-05-25
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

EP06010811A

Other languages

German (de)

English (en)

Other versions

EP1726237B1 (fr

Inventor

Thomas Clos

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.)

2005-05-25

Filing date

2006-05-26

Publication date

2006-11-29

2006-05-26 Application filed by M&C Schiffer GmbH filed Critical M&C Schiffer GmbH

2006-11-29 Publication of EP1726237A1 publication Critical patent/EP1726237A1/fr

2011-03-23 Application granted granted Critical

2011-03-23 Publication of EP1726237B1 publication Critical patent/EP1726237B1/fr

Status Not-in-force legal-status Critical Current

2026-05-26 Anticipated expiration legal-status Critical

Links

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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
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0055—Brushes combined with other articles normally separate from the brushing process, e.g. combs, razors, mirrors
- A46B15/0075—Brushes with an additional massage device
- 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

Definitions

the present invention relates to a brush, in particular toothbrush with a brush handle, which is connected via a brush neck with a brush head, which is equipped with bristle bundles, which are provided at their fastening side ends with a thickening, which between a brush handle, the brush neck and the brush head head formed base body and a rear side of this molded Bürstenkopf Wegen Mrs are arranged.
the present invention further relates to a method for producing a brush, in particular a toothbrush, in which a basic body comprising a brush handle, a brush neck and a top layer of a brush body is produced by injection molding, bristle bundles are inserted through recesses recessed on the top layer and secured against the top layer, and On the back of the upper layer, including the attachment-side ends of the bristle bundles a Bürstenkop Wegücken is molded.
a generic brush is, for example, from the date of the present applicant EP-0 623 298 known.
a base body is formed as a plastic injection molded part with recesses recessed therein for receiving bristle bundles. Through these recesses bristle bundles are inserted, which are provided at its mounting end by melting with a thickening forming melt droplets. Thereafter, the bundles of bristles are secured by extension in the direction of the use-side top of the brush head.
the brush head is finally completed by molding a plastic compound on the back of the brush head top layer, which is firmly bonded to the brush head during curing and which holds the mounting side ends of the bristle bundles between them and the upper brush head layer.
the upper brush head layer is formed in the known from this prior art brush as a one-piece component together with the brush neck and the brush handle, so that the previously known method for producing a low-cost and simply trained toothbrush, which has the advantages of an anchorless attachment of the bristle bundle brings the brush head with it.
These advantages include in particular a relatively small thickness of the brush head, with regard to a use of the toothbrush in the relatively narrow mouth is significant.
the upper brush head layer is accordingly made relatively thin, but thicker than a film and the dimensioning of the upper brush head layer is particularly in view of the fact that the bristle bundles can not be pulled out through the upper brush head layer in a conventional use of the brush.
a brush is known in which the brush head consists of meandering intermeshing, extending at right angles to the bristle bundles brush head areas.
the use-side surface of the brush head is formed by a film which forms a multiplicity of underside closed outlets for receiving in each case a bundle of bristles.
On the back of this plastic film is a soft elastic molded plastic.
This embodiment is intended to allow better pivotability of individual bristle bundles in the brush head.
the method for producing such a brush head is relatively expensive.
the relatively complicated injection mold leads to an increase in the manufacturing cost of the brush.
Another, at least two-layer construction of the brush head is from the DE 102 21 716 known to the present applicant.
the attachment-side ends of the bundles of bristles are received in a soft elastic plastic material, whereby the pull-out strength of the bristle bundles is impaired.
the present invention is based on the problem arising from the EP-0 623 298 to improve known brush in terms of their performance characteristics. Furthermore, the present invention is based on the problem of specifying a method for producing such a brush.
the present invention provides a brush having the features of claim 1.
This differs from the generic brush in that the brush head top layer is surmounted by injection molded functional elements arranged on the brush head.
functional elements in the context of the present invention, all elements are to be understood which increase the usefulness or improve the functionality of the brush.
These functional elements include, in particular, soft-elastic functional elements which serve for the additional cleaning and / or massage of the teeth or of the gums. These include in particular the brush head superior massage fingers or pillows.
the lateral edge of the plastic top layer superior coatings can be provided, which serve as impact protection for the regularly formed on grounds of a sufficient pullout strength of a hard plastic plastic top layer.
the functional elements may also be parts of a joint. If provided by the functional elements cleaning or massage elements of the brush, this leads to a brush with increased usability.
the brush has improved functionality.
the injection-molded functional elements of the invention which project beyond the brush head top layer, can be provided, in particular in one piece, together with other functional elements which do not necessarily project beyond the brush head top layer.
a different requirements sufficient brush can be produced in a simple manner, which has a sufficient flexibility, for example, in the neck area and also includes functional elements, such as massage or cleaning element in addition to conventional bristle bundles.
these are preferably injection-molded onto the brush head top layer and thus materially connected to the main body.
the main body As a relatively simple embodiment of the brush according to the invention and accordingly with regard to the cost of producing the brush, it is preferable to form the main body as a one-piece injection molded part with recesses for the functional elements recessed therein.
the inclusion of functional elements in the recesses also improves the connection between the main body and the functional elements, which may be particularly advantageous in the formation of the functional elements of a flexible plastic in view of the sometimes poor adhesion properties of the soft elastic plastic to the component of the body.
the functional elements and the brush-head back-layer in an identical manner.
the functional elements are preferably designed as cleaning elements extending substantially parallel to the bundles of bristles, for example in the form of massage fingers or wipers.
the cleaning elements are characterized in particular by the fact that they are formed approximately with the same length as the bristle bundles and thus when cleaning the brush, for example when using the brush as a toothbrush in a mouth, substantially simultaneously with the bristle bundles are active in cleaning.
the functional elements comprise rings.
Each of the rings comprises a bundle of bristles, wherein the individual rings are injection-molded through in each case a recess and are connected by injection-molding to the brush head upper layer.
the guide length formed by the recess of the brush head top layer is extended for the bristle bundles and so also the Wiederaufrichtrich the bristle bundles and in particular the service life of the brush improves.
the advantageous development therefore offers the possibility of forming the brush head top layer with a minimum thickness which is still tolerable with regard to the pull-out strength, without having to forego the advantages of a sufficient guide length of the bristle bundles.
the rings may be provided in combination with the above-mentioned cleaning members, and may preferably project beyond the top brush head layer by 1/5 to 3/5 of their axial length.
the other side of the rings preferably reaches at most up to the back of the brush head top layer.
the rings can also terminate at a certain distance from this rear side in the brush head top layer and between the front end of the rings and the rear side, the material of the brush head top layer may have an up to the bristle bundles protruding to the bristle bundles with higher pullout strength on the body to back up.
the present invention provides a manufacturing method for manufacturing a brush in which the aforementioned base body is produced by injection molding. By recesses which are recessed on the upper layer, a bundle of bristles is then introduced in each case.
a perforated field plate is preferably first provided with bundles of bristles whose hole pattern corresponds to the pattern of the recesses of the base body to be provided with bristle bundles. These bristle bundles are then, after the perforated field plate has been aligned with their holes in alignment with the corresponding recesses, transferred simultaneously into the recesses of the body.
the method according to the invention comprises a step in which the functional elements, which project the upper layer, are formed by injection molding and connected to the brush head.
the functional elements can also initially be produced as separate components, for example as a structural unit comprising the bundles of bristles, which as such is connected to the basic body.
the functional elements are preferably formed for the reasons already discussed above by molding the top layer with a thermoplastic elastomer, preferably by spraying through selected recesses.
a thermoplastic elastomer preferably by spraying through selected recesses.
only predetermined recesses can be injected, in particular those which serve to receive bundles of bristles, whereas other recesses can be injected during encapsulation of the brush head back layer to form further functional elements, in particular in the form of cleaning elements.
An improved attachment of the functional elements to the upper layer is created according to a preferred development of the present invention, characterized in that the functional elements are formed with a voltage applied to the back of the upper layer and a plurality of functional elements functional element base as a one-piece functional element injection molded part.
the functional element injection-molded part preferably forms the basis for all functional elements formed by encapsulation of the upper layer. This composite is connected with high security inextricably linked to the body.
the base body is preferably produced as a one-piece injection-molded part, preferably of a hard component, wherein the through-cut recesses in the injection molding are recessed at the top layer.
the main body can be known per se
These encapsulations are preferably formed when forming the functional elements on the brush head, wherein the at least one encapsulation is not necessarily formed, but preferably material identical to the functional elements, ie the encapsulation is performed with the same soft elastic plastic component.
the brush head 8 comprises an integrally formed as part of the base body 2 upper layer 10, which is formed as a substantially flat, plate-shaped member having a plurality of recesses 12.
the recesses 12 are - as Figure 2 can be seen - partially equipped with bristle bundles 14.
These bristle bundles 14 have at their fastening-side end a thickening 16 formed by melting of the bristle bundles 14. This thickening projects beyond the recess 12 in the radial direction and thus secures the bundles of bristles 14 against being pulled out in the direction of the utilization-side upper side of the upper layer 10.
a Bürstenkopf Wegen Mrs 18 which consists of a thermoplastic elastomer and is formed by molding the thermoplastic elastomer against the back side of the upper layer 10, as for example from EP-0 623 298 is known.
the brush head back layer 18 has cleaning elements 20 integrally formed on this layer 18, which extend substantially parallel to the bristle bundles 14 and are formed approximately at the same height, ie, length, above the upper side of the upper layer 10.
the cleaning elements 20 may be rod-shaped with a round or rectangular cross section and with a diameter which corresponds approximately to the diameter of the bristle bundles, be formed. Alternatively, the cleaning elements 20 may extend over almost the entire width or length of the brush head 8.
the base body 2 is produced in a conventional manner by injection molding. Thereafter, the transfer of bristle bundles 14 takes place without thickening in selected recesses 12. Then, the thickenings 16 are formed by melting. The attachment-side ends of the bristle bundles 14 may be at a distance from the upper layer 10 may be provided and applied to the back of the body 2 after creating the thickening.
the base body provided with bristle bundle is then inserted into a second injection mold, which has the upper side of the upper layer 10 surrounding mold cavities for the cleaning elements 20, but otherwise there preferably funnel-shaped recesses for receiving the bristle bundles.
thermoplastic elastomer is injected into the cavity, preferably between the injection mold and the back of the topsheet 10. Thereafter, substantially initially the brushhead backsheet 18 is formed. With increasing mold filling, the thermoplastic elastomer exits through the free recesses 12 and fills the mold cavities for the cleaning elements 10. In this mold filling the thickenings 16 of the bristle bundles 14 compress the remaining recesses 12 from. In this case, a one-piece functional element injection molded part 21 comprising the cleaning elements 20 and the brush head back part 18 is formed, the functional element base of which the cleaning elements 20 connect to one another at the bottom being formed by the back part 18. After the thermoplastic elastomer has cooled sufficiently, the finished brush is removed from the mold.
the embodiment shown in Figures 3 to 5 has the same body, as the previously discussed embodiment. Identical features are accordingly marked with the same reference numerals.
the finished brush shown in Figure 5 has a plurality of rings 22, which over a partial axial length with its outer peripheral surface to the inner periphery of the recesses 12 fitting.
the rings 20 are presently designed as cylindrical components with a round cross-sectional area. About half of the axial length of the rings 22 projects beyond the upper layer 10.
the rings 22 are penetrated by the bristle bundles 14.
the thickening 16 is located at the mouth of the rings 22.
the attachment-side end side of the rings 22 is aligned with the back of the top layer 10.
the brush head back layer 18 is made of a thermoplastic elastomer and, accordingly, allows a certain spring back of the bristle bundles 14 at excessive axial compressive stress of the bristle bundles.
the base body 4 is first inserted into a further injection mold. This has in the recesses 14 projecting cylindrical pin, which together with the rest Formed walls of the tool halves form an annular gap whose outer peripheral surface is aligned with the outer peripheral surface of the recesses 12.
Thermoplastic material is injected into these spaces. This may be a hard plastic or a soft elastic plastic.
10 flow channels are formed on the back of the upper layer, through which at the back of the upper layer 10 molded melt can reach the individual recesses 14.
the solidifying melt forms the rings 22.
bristle bundles 14 are inserted and thickened in the manner described above with reference to the first embodiment. Thereafter, the back of the topsheet 10 is overmolded and the brushhead backsheet 18 is formed.

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Brushes (AREA)
Polishing Bodies And Polishing Tools (AREA)

EP06010811A 2005-05-25 2006-05-26 Brosse et son procédé de fabrication Not-in-force EP1726237B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102005024082A DE102005024082A1 (de)	2005-05-25	2005-05-25	Bürste und Verfahren zu deren Herstellung

Publications (2)

Publication Number	Publication Date
EP1726237A1 true EP1726237A1 (fr)	2006-11-29
EP1726237B1 EP1726237B1 (fr)	2011-03-23

Family

ID=37000143

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP06010811A Not-in-force EP1726237B1 (fr)	2005-05-25	2006-05-26	Brosse et son procédé de fabrication

Country Status (3)

Country	Link
EP (1)	EP1726237B1 (fr)
AT (1)	ATE502540T1 (fr)
DE (2)	DE102005024082A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2010025820A2 (fr) *	2008-08-26	2010-03-11	Firma G.B. Boucherie N.V.	Procédé pour produire des brosses, en particulier des brosses à dents
CN101999798A (zh) *	2009-08-31	2011-04-06	Gb保捷利公众有限公司	用于制造刷子尤其是牙刷的方法
EP2345342A1 (fr) *	2010-01-18	2011-07-20	Alcan Packaging Beauty Services	Applicateur cosmétique
US8845034B2 (en)	2011-06-15	2014-09-30	The Braun GmbH	Brush head and method and tool for producing same
EP2632293B1 (fr)	2010-10-25	2016-09-28	Zahoransky Formenbau Gmbh	Brosse et procédé pour fabriquer une brosse
EP4154761A1 (fr) *	2021-09-27	2023-03-29	Braun GmbH	Tête pour un dispositif de soins personnels
US11832717B2 (en)	2019-06-21	2023-12-05	The Procter & Gamble Company	Method for producing a toothbrush head
US11844419B2 (en)	2019-06-21	2023-12-19	The Procter & Gamble Company	Cleaning element carrier and toothbrush head comprising it
US11944189B2 (en)	2019-06-21	2024-04-02	The Procter & Gamble Company	Method for producing a toothbrush head or a part thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102009009034A1 (de)	2009-02-16	2010-08-19	M + C Schiffer Gmbh	Bürste, insbesondere Zahnbürste und Verfahren zu deren Herstellung
DE102016011477B4 (de)	2016-09-22	2022-03-31	M + C Schiffer Gmbh	Bürstenkopf für eine elektrisch angetriebene Zahnbürste und Verfahren zu deren Herstellung
JP7384790B2 (ja) *	2017-10-24	2023-11-21	コーニンクレッカフィリップスエヌヴェ	ブラシヘッド製造方法及び装置

Citations (9)

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EP0360766A1 (fr) *	1988-09-19	1990-03-28	Antonio Marino	Brosse à dents
EP0623298A1 (fr)	1993-04-06	1994-11-09	M + C SCHIFFER GmbH	Procédé et dispositif de fabrication de brosses à dents
DE20013862U1 (de)	2000-08-11	2000-11-23	Zahoransky Formenbau Gmbh	Bürste, insbesondere Zahnbürste
WO2001003546A1 (fr) *	1999-07-13	2001-01-18	Proemm Hans	Tete de brosse, en particulier tete de brosse a dents, et procede et dispositif pour la fabrication de cette tete de brosse
US20020017003A1 (en) *	1992-03-25	2002-02-14	Smithkline Beecham Consumer Healthcare Gmbh.	Toothbrush Comprising a resilieent flex region
DE10164336A1 (de)	2001-12-28	2003-07-17	Trisa Holding Ag Triengen	Zahnbürste und Verfahren zur Herstellung einer solchen Zahnbürste
DE10221716A1 (de)	2002-05-16	2003-11-27	Bayerische Motoren Werke Ag	Regelsystem für ein Kraftfahrzeug mit Wankstabilisierung
WO2003097324A2 (fr) *	2002-05-15	2003-11-27	Coronet-Werke Gmbh	Procede pour la production d'une structure de poils sur un support
US6886207B1 (en) *	1999-06-14	2005-05-03	The Procter & Gamble Company	Toothbrush

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Publication number	Priority date	Publication date	Assignee	Title
FR2773962B1 (fr) *	1998-01-26	2000-03-03	Synthelabo	Brosse a dents comportant des tiges de massage des gencives
EP1171014A1 (fr) *	1999-04-22	2002-01-16	Kao Corporation	Brosse a dents
DE10221786A1 (de) *	2002-05-15	2003-11-27	Schiffer Fa M & C	Bürste und Verfahren zu deren Herstellung
EP1593321B1 (fr) *	2004-05-07	2007-01-24	GlaxoSmithKline Consumer Healthcare GmbH & Co KG	Tête de brosse

2005
- 2005-05-25 DE DE102005024082A patent/DE102005024082A1/de not_active Ceased
2006
- 2006-05-26 EP EP06010811A patent/EP1726237B1/fr not_active Not-in-force
- 2006-05-26 DE DE502006009137T patent/DE502006009137D1/de active Active
- 2006-05-26 AT AT06010811T patent/ATE502540T1/de active

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0360766A1 (fr) *	1988-09-19	1990-03-28	Antonio Marino	Brosse à dents
US20020017003A1 (en) *	1992-03-25	2002-02-14	Smithkline Beecham Consumer Healthcare Gmbh.	Toothbrush Comprising a resilieent flex region
EP0623298A1 (fr)	1993-04-06	1994-11-09	M + C SCHIFFER GmbH	Procédé et dispositif de fabrication de brosses à dents
US6886207B1 (en) *	1999-06-14	2005-05-03	The Procter & Gamble Company	Toothbrush
WO2001003546A1 (fr) *	1999-07-13	2001-01-18	Proemm Hans	Tete de brosse, en particulier tete de brosse a dents, et procede et dispositif pour la fabrication de cette tete de brosse
DE20013862U1 (de)	2000-08-11	2000-11-23	Zahoransky Formenbau Gmbh	Bürste, insbesondere Zahnbürste
DE10164336A1 (de)	2001-12-28	2003-07-17	Trisa Holding Ag Triengen	Zahnbürste und Verfahren zur Herstellung einer solchen Zahnbürste
WO2003097324A2 (fr) *	2002-05-15	2003-11-27	Coronet-Werke Gmbh	Procede pour la production d'une structure de poils sur un support
DE10221716A1 (de)	2002-05-16	2003-11-27	Bayerische Motoren Werke Ag	Regelsystem für ein Kraftfahrzeug mit Wankstabilisierung

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN102159115B (zh) *	2008-08-26	2014-12-24	Gb保捷利公众有限公司	用于制造刷子尤其是牙刷的方法
WO2010025820A3 (fr) *	2008-08-26	2010-05-27	Firma G.B. Boucherie N.V.	Procédé pour produire des brosses, en particulier des brosses à dents
WO2010025820A2 (fr) *	2008-08-26	2010-03-11	Firma G.B. Boucherie N.V.	Procédé pour produire des brosses, en particulier des brosses à dents
CN102159115A (zh) *	2008-08-26	2011-08-17	Gb保捷利公众有限公司	用于制造刷子尤其是牙刷的方法
EP2298122A3 (fr) *	2009-08-31	2012-06-06	G.B. Boucherie, N.V.	Procédé de fabrication de brosses, notamment de brosses à dents
CN101999798B (zh) *	2009-08-31	2015-02-18	Gb保捷利公众有限公司	用于制造刷子尤其是牙刷的方法
CN101999798A (zh) *	2009-08-31	2011-04-06	Gb保捷利公众有限公司	用于制造刷子尤其是牙刷的方法
US8627831B2 (en)	2010-01-18	2014-01-14	Albea Services	Cosmetic applicator assembly
US9161614B2 (en)	2010-01-18	2015-10-20	Albea Services	Cosmetic applicator assembly
EP2345342A1 (fr) *	2010-01-18	2011-07-20	Alcan Packaging Beauty Services	Applicateur cosmétique
EP2632293B1 (fr)	2010-10-25	2016-09-28	Zahoransky Formenbau Gmbh	Brosse et procédé pour fabriquer une brosse
US8845034B2 (en)	2011-06-15	2014-09-30	The Braun GmbH	Brush head and method and tool for producing same
US11832717B2 (en)	2019-06-21	2023-12-05	The Procter & Gamble Company	Method for producing a toothbrush head
US11844419B2 (en)	2019-06-21	2023-12-19	The Procter & Gamble Company	Cleaning element carrier and toothbrush head comprising it
US11944189B2 (en)	2019-06-21	2024-04-02	The Procter & Gamble Company	Method for producing a toothbrush head or a part thereof
EP4154761A1 (fr) *	2021-09-27	2023-03-29	Braun GmbH	Tête pour un dispositif de soins personnels
WO2023047231A1 (fr) *	2021-09-27	2023-03-30	Braun Gmbh	Tête pour dispositif de soins personnels

Also Published As

Publication number	Publication date
DE502006009137D1 (de)	2011-05-05
DE102005024082A1 (de)	2006-11-30
ATE502540T1 (de)	2011-04-15
EP1726237B1 (fr)	2011-03-23

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