WO1999065358A1 - Brosse a dents a partie de poils remplaçable - Google Patents

Brosse a dents a partie de poils remplaçable Download PDF

Info

Publication number
WO1999065358A1
WO1999065358A1 PCT/EP1999/004128 EP9904128W WO9965358A1 WO 1999065358 A1 WO1999065358 A1 WO 1999065358A1 EP 9904128 W EP9904128 W EP 9904128W WO 9965358 A1 WO9965358 A1 WO 9965358A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
housing
bristles
brush part
toothbrush according
Prior art date
Application number
PCT/EP1999/004128
Other languages
German (de)
English (en)
Inventor
Georg Weihrauch
Original Assignee
Coronet-Werke 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
Application filed by Coronet-Werke Gmbh filed Critical Coronet-Werke Gmbh
Priority to JP2000554246A priority Critical patent/JP2002518072A/ja
Priority to BR9911271-0A priority patent/BR9911271A/pt
Priority to EP99929218A priority patent/EP1087681B1/fr
Priority to PL99344869A priority patent/PL344869A1/xx
Priority to CA002334841A priority patent/CA2334841A1/fr
Priority to DE59900988T priority patent/DE59900988D1/de
Priority to AU46104/99A priority patent/AU749354B2/en
Priority to AT99929218T priority patent/ATE214244T1/de
Publication of WO1999065358A1 publication Critical patent/WO1999065358A1/fr
Priority to NO20006361A priority patent/NO20006361D0/no

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers

Definitions

  • the invention relates to a toothbrush with a handle, a head designed as a one-sided open, elongated housing, a brush part interchangeably inserted into the housing with a carrier and bristles attached to it, the carrier having an attachment on its rear side, which extends into an opening on Back of the housing engages, and the brush part can be ejected from the housing by pressure on the neck.
  • the bristles are primarily subject to wear.
  • the bristle ends should be rounded like a dome to avoid damage to the tooth enamel and injuries to the gingiva. Even if it is now possible to round off the bristle ends properly using appropriate manufacturing measures, however, they wear out quickly during use and lose their rounded shape.
  • a toothbrush that is used three times a day in the dentistically recommended manner should therefore be replaced with a new one after a few weeks.
  • toothbrushes with replaceable brush parts are becoming increasingly important.
  • only the part that is subject to wear and tear needs to be thrown away, on the other hand, it also encourages the user to carry out the replacement regularly.
  • there is a considerable cost saving for the user since the larger part of the toothbrush can still be used.
  • the interchangeable brush part must be attached to the head of the toothbrush in such a way that it does not come loose in time.
  • the brush part should be detachable from the head with comparatively little effort, in particular without the aid of tools.
  • a number of versions meet these conditions.
  • the carrier has a sealing edge that overlaps the open underside of the housing.
  • a pin-like projection is provided on the back of the carrier, which engages in a correspondingly shaped opening in the back of the housing and on which pressure can be exerted from the back of the head, in order to Eject the brush part.
  • the carrier consists of a rubber-elastic material and is non-positively inserted into the head.
  • the head is designed as an annular frame that is open at the top and bottom of the head.
  • the rubber elastic Carrier is pressed into the ring and pushed out from the back for replacement. Since the circular head inevitably can only have a relatively small diameter and the ring-shaped housing must not be less than a certain wall thickness for reasons of stability, on the one hand there is only a small bristle field, and on the other hand the deformable volume of the carrier is only small, so that a Sealing the carrier against the housing is only possible to a limited extent. If the carrier is appropriately oversized to achieve sufficient tightness, the resistance to deformation when pressing in and pushing out is correspondingly high, making insertion and ejection difficult. In the known embodiment, the carrier forms a trough on the back and inevitably collects dirt there.
  • Toothbrushes depend on the thickness of the head essentially according to this length of attachment.
  • the thickness of the head inevitably increases, since in addition to the thickness of the carrier, which must be adapted to the necessary fastening length, the wall thickness of the back of the housing is added.
  • the height in the area of the head increases in an undesirable manner for use.
  • the head should be as slender as possible, so that even with a narrow mouth, especially in children, and especially in the outside
  • the invention has for its object to provide a toothbrush with an interchangeable brush part while avoiding the aforementioned disadvantages.
  • the carrier with the approach consists of a rubber-elastic material and seals against the housing and with its approach against the opening rubber-elastic, and that the brush part can be ejected from the housing by pressure on the approach by rubber-elastic deformation of the carrier is, wherein the bristles are attached to the carrier by welding or injection.
  • the carrier consists of a rubber-elastic material which must meet the requirement that the brush part can be ejected solely by rubber-elastic deformation of the carrier when pressure is exerted on the back of the carrier. Conversely, this means that the brush part is fixed in the carrier primarily by means of rubber-elastic restoring forces of the carrier material.
  • the holding forces, as well as the forces during ejection, are thus largely absorbed by the rubber-elastic material of the carrier and act far less on the brush head, so that permanent deformations cannot occur there.
  • the rubber-elastic design of the carrier also gives the possibility of taking the necessary precautions for applying the holding forces at any point above the overall height of the carrier, but in particular the Deformability of the carrier and the approach to use directly for elastic sealing of the housing on all open sides.
  • an adequate anchorage of the bristles must be ensured despite the rubber-elastic design of the carrier. In the embodiment according to the invention, this is achieved by fastening techniques known per se, namely by welding or injecting the bristle ends.
  • This type of fastening has the advantage over the conventional punching technique, in which the looped bristle bundles are fastened with anchors in the bristle holder, that the fastening length can be reduced to a minimum, so that the holder can be made thin and the overall height is thereby reduced of the head reduced.
  • the bristles are adequately anchored despite the elastic deformation of the carrier, in particular when the brush part is ejected.
  • a pull-out strength of 25N can be achieved without difficulty, which is not possible with conventional stamping technology.
  • the carrier has on the side carrying the bristles a circumferential edge strip which tightly covers the housing on its underside and which, due to the rubber-elastic properties of the carrier material, fits tightly in the manner of a sealing lip and additionally prevents the formation of gaps.
  • This sealing lip can also overlap the head as far as possible to the side faces thereof and thereby at the same time form a covering of the outside of the hard brush head which protects the mucous membrane.
  • the attachment of the bristles to the carrier which is provided according to the invention, also enables the sealing lip to be filled with bristles, so that compared to all other known designs, in which the bristle trimmings are arranged at a noticeable distance from the peripheral edge of the head, the entire width of the head is used or vice versa, the width of the head can be reduced accordingly.
  • the bristles can be attached by welding or welding. However, they are preferably embedded by injection, so they have a melted thickening on their fastening-side ends, by means of which they are embedded in the carrier by extrusion coating with the carrier material. It has proven to be advantageous if the thickening has a protrusion on all sides of 0.1 to 0.2 mm above the coat of the bristles.
  • the aforementioned measures ensure that, despite the elastic deformation of the carrier when inserting or ejecting, the bristles are held with sufficient pull-out strength.
  • the brush part can be fixed in the housing in a purely frictional manner, that is to say solely by the rubber-elastic deformation, for example in the manner of a press fit.
  • the housing which forms the head can be open on one side and / or the opening on the surfaces facing the carrier to have projections which engage in a form-fitting manner in the carrier.
  • the carrier has depressions corresponding to the projections on the housing and / or the opening.
  • the opening at the back of the head is covered by a flexible disc on which the wearer or his neck rests.
  • Figure 1 is a partial view of a toothbrush in a top view of the back
  • Figure 2 shows a section II-II of Figure 1
  • Figure 3 is a plan view of the bristle set of the toothbrush
  • FIG. 4 shows a section IV-IV according to FIG. 3;
  • FIG. 5 one corresponding to FIG. 4
  • FIG. 6 one corresponding to FIG. 4
  • the toothbrush shown in FIGS. 1 to 3 consists of a broken-off elongated handle 1, a head 2 and an exchangeable brush part 3, which has a carrier 4 with the bristle stocking 5 made of individual bristle bundles 6.
  • the head 2 of the toothbrush is designed as a housing 7, in which the brush part 3 with its carrier 4 is interchangeably inserted.
  • the carrier consists of a rubber-elastic material, preferably an elastomer with high compressibility.
  • the housing 7 has a peripheral cheek 8 as a lateral boundary, which is closed towards the handle 1 by a wall 9 (FIGS. 2 and 4).
  • the circumferential cheek 8 forms with the wall 9 a kind of shaped frame, which together with the back 10 forms a downwardly open receptacle for the carrier 4.
  • the housing also has an opening 11.
  • the support 4, which is flat on the side of the bristle stock 5, consists of a plate-shaped part 13, the outline of which corresponds to the outline formed by the inside of the cheek 8 and the wall 9, and a peg-shaped extension 14, which passes through the opening 11 and at the same time in this is fitted elastically.
  • the projection 14 has an exposed end face which does not protrude the back 10 of the housing 7 and which forms a pressure surface 15. As shown in FIG. 1, this printing area can be optically highlighted, optionally also profiled on the surface.
  • the opening 11 can also be closed by a flexible disk made of an elastomer, via which can be acted on the printing surface 15.
  • the cross section of the housing 7 can be rectangular box-shaped. Then the elastic deformation of the carrier is sufficient to fix the brush part as well as for sealing.
  • the carriages 8 are inclined slightly inwards. In this case, 8 locking lugs 12 are arranged on the inside of the cheeks, to which correspondingly shaped locking recesses 16 in the plate-shaped part 13 of the carrier 4 are assigned.
  • the brush part 3 can be replaced in a simple manner and replaced by a new brush part by exerting pressure on the pressure surface 15 with a finger, acting in the direction of the bristle stocking 5, under which the pressure surface 15 bulges inwards and the deformation that continues in the carrier leads to the release of the locking recesses 16 from the locking lugs 12, so that the brush part 3 can be pressed out.
  • the bundles 5 spread outwards without detaching from the carrier 4.
  • the bristles 6 of the brush part 3 are welded onto the carrier 4 (bundle 20) or welded into the carrier (bundle 21) or provided with thickenings 17 which are extrusion-coated with the carrier material (bundle 22).
  • the plate-shaped part 13 of the carrier 4 has a circumferential one
  • edge strip 23 which overlaps the open side of the housing 7 to the outside and forms a sealing lip, which performs additional sealing functions and also the edges of the housing 7 with the formation of a skin protection covers.
  • a cylindrical wall 18 is attached to the opening 11 on the back 10 of the housing 7, which on its end face lying in the housing has inwardly directed latching lugs 19 or a circumferential latching bead which extends into a correspondingly shaped recess (en) 19 at the transition of the approach 14 in the 'plate-shaped part 13 of the carrier 4 engages in addition to the rubber-elastic deformation of the carrier.

Landscapes

  • Brushes (AREA)
  • Pens And Brushes (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne une brosse à dents comportant un manchon, une tête sous forme de boîtier allongé ouvert d'un côté, une partie de poils introduite dans le boîtier de manière remplaçable et munie d'un support et de poils fixés dessus. Sur l'arrière du support, cette brosse à dents présente une partie saillante qui entre dans un passage pratiqué à l'arrière du boîtier. Le support conjointement avec la pièce rapportée se composent d'un matériau caoutchouteux et assurent l'étanchéité contre le boîtier et de manière caoutchouteuse contre le passage, avec la partie saillante. La partie de poils peut être éjectée du boîtier, par pression sur la partie saillante par déformation caoutchouteuse du support. Les poils sont fixés sur le support par soudage ou injection.
PCT/EP1999/004128 1998-06-17 1999-06-15 Brosse a dents a partie de poils remplaçable WO1999065358A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP2000554246A JP2002518072A (ja) 1998-06-17 1999-06-15 交換可能な部分を有する歯ブラシ
BR9911271-0A BR9911271A (pt) 1998-06-17 1999-06-15 Escova de dente com uma parte de escova substituìvel
EP99929218A EP1087681B1 (fr) 1998-06-17 1999-06-15 Brosse a dents a partie de poils remplacable
PL99344869A PL344869A1 (en) 1998-06-17 1999-06-15 Toothbrush with an exchangeable part
CA002334841A CA2334841A1 (fr) 1998-06-17 1999-06-15 Brosse a dents a partie de poils remplacable
DE59900988T DE59900988D1 (de) 1998-06-17 1999-06-15 Zahnbürste mit einem auswechselbaren bürstenteil
AU46104/99A AU749354B2 (en) 1998-06-17 1999-06-15 Toothbrush with an exchangeable part
AT99929218T ATE214244T1 (de) 1998-06-17 1999-06-15 Zahnbürste mit einem auswechselbaren bürstenteil
NO20006361A NO20006361D0 (no) 1998-06-17 2000-12-13 Tannbörste med utskiftbar börstehårdel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19827009.7 1998-06-17
DE19827009A DE19827009A1 (de) 1998-06-17 1998-06-17 Zahnbürste mit einem auswechselbaren Bürstenteil

Publications (1)

Publication Number Publication Date
WO1999065358A1 true WO1999065358A1 (fr) 1999-12-23

Family

ID=7871176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/004128 WO1999065358A1 (fr) 1998-06-17 1999-06-15 Brosse a dents a partie de poils remplaçable

Country Status (15)

Country Link
EP (1) EP1087681B1 (fr)
JP (1) JP2002518072A (fr)
KR (1) KR100596253B1 (fr)
CN (1) CN1111374C (fr)
AT (1) ATE214244T1 (fr)
AU (1) AU749354B2 (fr)
BR (1) BR9911271A (fr)
CA (1) CA2334841A1 (fr)
DE (2) DE19827009A1 (fr)
ES (1) ES2172335T3 (fr)
NO (1) NO20006361D0 (fr)
PL (1) PL344869A1 (fr)
PT (1) PT1087681E (fr)
RU (1) RU2210967C2 (fr)
WO (1) WO1999065358A1 (fr)

Cited By (22)

* Cited by examiner, † Cited by third party
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USD749855S1 (en) 2013-11-05 2016-02-23 Colgate-Palmolive Company Oral care implement
USD751295S1 (en) 2013-11-05 2016-03-15 Colgate-Palmolive Company Oral care implement
USD764804S1 (en) 2013-11-05 2016-08-30 Colgate-Palmolive Company Oral care implement
USD780457S1 (en) 2014-12-23 2017-03-07 Colgate-Palmolive Company Oral care implement
US10021959B2 (en) 2014-12-23 2018-07-17 Colgate-Palmolive Company Oral care implement having multi-component handle
US10039370B2 (en) 2013-11-05 2018-08-07 Colgate-Palmolive Company Oral care implement
US10182644B2 (en) 2014-12-23 2019-01-22 Colgate-Palmolive Company Oral care implement
US10226118B2 (en) 2014-12-23 2019-03-12 Colgate-Palmolive Company Oral care implement having multi-component handle
US10238204B2 (en) 2013-11-05 2019-03-26 Colgate-Palmolive Company Oral care implement
US10426250B2 (en) 2014-12-23 2019-10-01 Colgate-Palmolive Company Oral care implement
US10455931B2 (en) 2014-12-23 2019-10-29 Colgate-Palmolive Company Oral care implement
US10595628B2 (en) 2014-12-23 2020-03-24 Colgate-Palmolive Company Oral care implement
US10660430B2 (en) 2014-12-23 2020-05-26 Colgate-Palmolive Company Oral care implement having multi-component handle
US10687610B2 (en) 2014-12-23 2020-06-23 Colgate-Palmolive Company Oral care implement
US10743646B2 (en) 2014-12-23 2020-08-18 Colgate-Palmolive Company Oral care implement
US10743645B2 (en) 2013-11-05 2020-08-18 Colgate-Palmolive Company Oral care implement
US11229281B2 (en) 2014-12-23 2022-01-25 Colgate-Palmolive Company Oral care implement
US11291293B2 (en) 2014-12-23 2022-04-05 Colgate-Palmolive Company Oral care implement
USD960582S1 (en) 2020-12-10 2022-08-16 Colgate-Palmolive Company Oral care refill head
US11517412B2 (en) 2017-12-12 2022-12-06 Colgate-Palmolive Company Oral care implement
USD997567S1 (en) 2018-12-18 2023-09-05 Colgate-Palmolive Company Electric toothbrush
US11833004B2 (en) 2017-12-12 2023-12-05 Colgate-Palmolive Company Oral care implement and handle and refill head thereof

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002034656A (ja) * 2000-07-19 2002-02-05 Temuko Kk 歯ブラシ
KR200354838Y1 (ko) * 2004-03-22 2004-06-30 이상호 칫솔
KR200462621Y1 (ko) 2010-08-09 2012-09-24 이팔형 칫솔
USD726418S1 (en) 2011-04-20 2015-04-14 Gruber, Llc Dental cleaning device
USD756121S1 (en) 2011-04-20 2016-05-17 Gruber, Llc Dental cleaning head
US8549693B2 (en) 2011-04-20 2013-10-08 Gruber, Llc Tooth cleaning device
US8997299B2 (en) 2011-04-20 2015-04-07 Gruber, Llc Tooth cleaning device
USD740033S1 (en) 2011-04-20 2015-10-06 Gruber, Llc Dental cleaning head
JP6544003B2 (ja) * 2015-03-31 2019-07-17 サンスター株式会社 歯ブラシ

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2311043A1 (de) 1973-03-06 1974-09-12 Erich Beiter Zahnbuerste
FR2544597A1 (fr) * 1983-04-19 1984-10-26 Azzoug Haoussine Brosse a dents a poils interchangeables
DE3724640A1 (de) * 1987-07-25 1989-02-02 Nitzsche International Gmbh Zahnbuerste
US5396679A (en) * 1994-02-07 1995-03-14 Steven R. Brown Toothbrush with replaceable brush insert
DE4434617A1 (de) 1994-09-28 1996-04-04 Fuchs Gmbh Zahnbürste
DE19600767C1 (de) 1996-01-11 1996-12-05 Fritz Alfons Rueb Zahnbürste mit einem auswechselbarem Borstenfeld
DE19624962A1 (de) 1996-06-22 1998-01-02 Coronet Werke Gmbh Zahnbürste mit auswechselbarem Bürstenteil

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DE4027108A1 (de) * 1990-08-28 1992-03-05 Schlerf Coronet Werke Verfahren zum verbinden von borstenbuendeln mit einem borstentraeger aus kunststoff und vorrichtung hierfuer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2311043A1 (de) 1973-03-06 1974-09-12 Erich Beiter Zahnbuerste
FR2544597A1 (fr) * 1983-04-19 1984-10-26 Azzoug Haoussine Brosse a dents a poils interchangeables
DE3724640A1 (de) * 1987-07-25 1989-02-02 Nitzsche International Gmbh Zahnbuerste
DE3724640C2 (fr) 1987-07-25 1990-01-11 Nitzsche International Gmbh, 6100 Darmstadt, De
US5396679A (en) * 1994-02-07 1995-03-14 Steven R. Brown Toothbrush with replaceable brush insert
DE4434617A1 (de) 1994-09-28 1996-04-04 Fuchs Gmbh Zahnbürste
DE19600767C1 (de) 1996-01-11 1996-12-05 Fritz Alfons Rueb Zahnbürste mit einem auswechselbarem Borstenfeld
DE19624962A1 (de) 1996-06-22 1998-01-02 Coronet Werke Gmbh Zahnbürste mit auswechselbarem Bürstenteil

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10238204B2 (en) 2013-11-05 2019-03-26 Colgate-Palmolive Company Oral care implement
USD751295S1 (en) 2013-11-05 2016-03-15 Colgate-Palmolive Company Oral care implement
USD764804S1 (en) 2013-11-05 2016-08-30 Colgate-Palmolive Company Oral care implement
US10743645B2 (en) 2013-11-05 2020-08-18 Colgate-Palmolive Company Oral care implement
USD783290S1 (en) 2013-11-05 2017-04-11 Colgate-Palmolive Company Oral care implement
USD749855S1 (en) 2013-11-05 2016-02-23 Colgate-Palmolive Company Oral care implement
US10039370B2 (en) 2013-11-05 2018-08-07 Colgate-Palmolive Company Oral care implement
US10595628B2 (en) 2014-12-23 2020-03-24 Colgate-Palmolive Company Oral care implement
US10743646B2 (en) 2014-12-23 2020-08-18 Colgate-Palmolive Company Oral care implement
US10182644B2 (en) 2014-12-23 2019-01-22 Colgate-Palmolive Company Oral care implement
US10426250B2 (en) 2014-12-23 2019-10-01 Colgate-Palmolive Company Oral care implement
US10455931B2 (en) 2014-12-23 2019-10-29 Colgate-Palmolive Company Oral care implement
US10021959B2 (en) 2014-12-23 2018-07-17 Colgate-Palmolive Company Oral care implement having multi-component handle
USD883676S1 (en) 2014-12-23 2020-05-12 Colgate-Palmolive Company Oral care implement and portions thereof
US10660430B2 (en) 2014-12-23 2020-05-26 Colgate-Palmolive Company Oral care implement having multi-component handle
US10687610B2 (en) 2014-12-23 2020-06-23 Colgate-Palmolive Company Oral care implement
US10226118B2 (en) 2014-12-23 2019-03-12 Colgate-Palmolive Company Oral care implement having multi-component handle
USD780457S1 (en) 2014-12-23 2017-03-07 Colgate-Palmolive Company Oral care implement
US10835026B2 (en) 2014-12-23 2020-11-17 Colgate-Palmolive Company Oral care implement
US11229281B2 (en) 2014-12-23 2022-01-25 Colgate-Palmolive Company Oral care implement
US11291293B2 (en) 2014-12-23 2022-04-05 Colgate-Palmolive Company Oral care implement
USD1004980S1 (en) 2014-12-23 2023-11-21 Colgate-Palmolive Company Oral care implement
US11779102B2 (en) 2014-12-23 2023-10-10 Colgate-Palmolive Company Oral care implement
US11517412B2 (en) 2017-12-12 2022-12-06 Colgate-Palmolive Company Oral care implement
US11833004B2 (en) 2017-12-12 2023-12-05 Colgate-Palmolive Company Oral care implement and handle and refill head thereof
USD997567S1 (en) 2018-12-18 2023-09-05 Colgate-Palmolive Company Electric toothbrush
USD960582S1 (en) 2020-12-10 2022-08-16 Colgate-Palmolive Company Oral care refill head

Also Published As

Publication number Publication date
NO20006361L (no) 2000-12-13
KR20010052779A (ko) 2001-06-25
BR9911271A (pt) 2001-03-13
ATE214244T1 (de) 2002-03-15
JP2002518072A (ja) 2002-06-25
CA2334841A1 (fr) 1999-12-23
RU2210967C2 (ru) 2003-08-27
EP1087681A1 (fr) 2001-04-04
ES2172335T3 (es) 2002-09-16
CN1111374C (zh) 2003-06-18
PL344869A1 (en) 2001-11-19
DE59900988D1 (de) 2002-04-18
KR100596253B1 (ko) 2006-07-03
PT1087681E (pt) 2002-09-30
DE19827009A1 (de) 1999-12-23
EP1087681B1 (fr) 2002-03-13
AU4610499A (en) 2000-01-05
CN1305352A (zh) 2001-07-25
NO20006361D0 (no) 2000-12-13
AU749354B2 (en) 2002-06-27

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