EP1773154A2 - Brosse à dents - Google Patents

Brosse à dents

Info

Publication number
EP1773154A2
EP1773154A2 EP05753924A EP05753924A EP1773154A2 EP 1773154 A2 EP1773154 A2 EP 1773154A2 EP 05753924 A EP05753924 A EP 05753924A EP 05753924 A EP05753924 A EP 05753924A EP 1773154 A2 EP1773154 A2 EP 1773154A2
Authority
EP
European Patent Office
Prior art keywords
head
rigid
receptacles
bristle
base
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Withdrawn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
EP05753924A
Other languages
German (de)
English (en)
Inventor
Richard Huw Davies
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever 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 Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to EP05753924A priority Critical patent/EP1773154A2/fr
Publication of EP1773154A2 publication Critical patent/EP1773154A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0025—Brushes with elastically deformable heads that change shape during use
    • A46B5/0029—Head made of soft plastics, rubber or rubber inserts in plastics matrix
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/06—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes

Definitions

  • the present invention relates to a toothbrush comprising a head which has a chamber between a bristle-bearing surface and a base.
  • the present invention also relates to a method for making such a brush.
  • WO 2004/19801 discloses a toothbrush comprising a handle, a head secured to the handle, the head having a movable portion and a fixed portion surrounding the movable portion, cleaning elements mounted in the fixed and movable portions, a resilient membrane extending between at least a portion of the area between the fixed and movable portions and the membrane being capable of flexing to alter its original orientation during use of said toothbrush and then recovering to assume its original orientation randomly during use of said toothbrush.
  • WO 2004/14181 discloses a toothbrush comprising a handle, a head secured to said handle, said head being in the form of a base having an upstanding wall to create a peripheral frame, a thin resilient membrane mounted to said frame, an open space between said membrane and said base' said membrane having an initial condition of non-use, said membrane in said initial condition being convex to have an original dome-like shape, at least one cleaning element on said membrane extending away from head, and said membrane being capable of flexing to alter said original shape during use of said toothbrush and then recovering to said original shape randomly driving use of said toothbrush.
  • DE-U-201 19 808 Javanbakhsh discloses a toothbrush comprising a pair of inflatable sections. One of these is located beneath the bristle-bearing surface.
  • the present invention relates to a toothbrush comprising a handle and a head attached thereto, the head having a chamber defined by a deformable bristle-bearing surface at its top and opposite thereto a base, the sides of the chamber being defined by a perimeter of the brush head, the base comprising a cap which is independent from and attachable to the rest of the base.
  • the head comprises a perimeter which supports the bristle- bearing face and also presents a recess to form the chamber underneath said face. It is preferred that the perimeter is in the form of a wall which extends around the brush head and has upper and lower edges. A part of the bristle-bearing face is preferably attached to the upper edge of the perimeter and/or its inner surface.
  • the bristle-bearing surface comprises a flexible member.
  • This may be in the form of rigid elements which are flexibly and resiliently linked to one another, for example, by a thinning in the rigid material between lands of rigidity or by way of an elastomeric material such as the thermoplastic elastomers.
  • the bristles may be affixed to the head directly within the elastomer or, instead, and preferably, by anchoring into rigid receptacles which themselves float within the elastomer.
  • the rigid receptacles may be linked to one another to provide improved rigidity or may be completely separate from one another to maximise flexibility.
  • the bristle-bearing surface comprises a flexible membrane which supports the bristle tufts.
  • the flexible membrane spans the head of the brush and is attached thereto at a rigid head periphery. Underneath the membrane is a chamber which is closed at its base by the cap.
  • the cap is attachable to the remainder of the head and by way of such attachment closes -the chamber at its base.
  • the attachment of the cap may be by mechanical means, e.g. a friction fit or click-fit. It may also be by chemical means, e.g. an adhesive. It may also be welded onto the head, e.g. by heat or sonic welding.
  • the cap is transparent.
  • the bristle-bearing surface of the brush comprises a flexible element since it permits the user to visually experience the flexibility of the head from underneath, and so without visual hindrance by the bristles but it also allows for improved processing since the bristles may be anchored by applying support underneath rigid floating blocks as the bristle tufts are anchored therein by a bristling machine.
  • the bristle-bearing surface comprises bristle tufts fixed thereto by anchor technology.
  • the bristle tufts are embedded in rigid receptacles which themselves are embedded in the membrane.
  • these rigid receptacles protrude through the membrane in order to maximise their bonding to the membrane.
  • this arrangement within the membrane also allows for the rigid receptacles to rock within the membrane without the interface between the receptacle and the membrane being compromised and the receptacle coming loose.
  • the rigid receptacles are shaped such that they have a greater surface area underneath the membrane than above it. This also assists in stabilising the receptacle within the membrane during rocking. When the receptacle is rocked, one side of it is forced upwards. This applied pressure to the membrane from below in such a way that the membrane is less likely to split from the receptacle when being pulled away from the membrane.
  • the bristle-bearing surface is domed away from the chamber.
  • the chamber may possible be defined by the dome shape and that there is no recess formed by the reminder of the head.
  • the chamber in the brush head may be filled with any fluid such as air, water, gel, etc. Further, the chamber may be pressurised to above or below atmospheric pressure in order to impart certain flexibility profiles to the head.
  • the invention provides a method for making a toothbrush comprising the steps of:
  • Figure 1 is a cross-sectional view of an embodiment of the invention
  • Figure 2 is a perspective view of a toothbrush and cap
  • Figure 3 is a plan view of the cap in a toothbrush embodiment
  • Figure 4 is a cross-sectional end on view of an embodiment according to the invention.
  • Figure 5 is a cross-sectional end on view of an embodiment according to the invention.
  • figure 1 shows a toothbrush head (1) comprising a bristle-bearing surface made of an elastomeric membrane (2) with bristles (3) fixed therein by way of rigid receptacles (4) .
  • a chamber (5) Beneath the bristle-bearing surface is a chamber (5) which is filled with air.
  • an aperture (6) which can be closed with the cap (7) .
  • the cap (7) is transparent enabling the user to see the flexibility of the brush segments from underneath.
  • Figure 2 shows a brush head (1) defined by a perimeter wall (8) and having bristle-bearing surface (2) seen from underneath.
  • the cap (7) is shown detached from the head but is fixable to the head as shown.
  • Figure 3 shows a brush head as described in figures 1 and 2 but seen from below and with the cap (7) attached.
  • the bottom surfaces of the rigid receptacles (4) can be seen " ' through the cap (7) :
  • Figure 4 shows a cross-sectional end-on view of an embodiment of the invention.
  • the bristle-bearing surface (2) is a flexible membrane spanning the brush head and being attached to the side walls (8) of the rigid perimeter of the head.
  • the flexible member (2) is domed. Beneath the flexible member (2) is a chamber (5) .
  • the base of the head is also pierced to allow for attachment of a cap (not shown) with which to fully define the chamber (5) .
  • FIG. 5 shows an alternative embodiment to that shown in Figure 4.
  • the flexible bristle-bearing surface (2) comprises an array of rigid bristle support members (9) located between grooves (10) which provide flexibility.
  • Figure 6 shows a rigid receptacle (4) suspended in a flexible membrane (2) . Also shown is a bristle tuft (11) formed from stapling an anchor (12) within a rigid receptacle.
  • Figure 7 shows how a rigid receptacle such as that shown in figure 6 rocks about its axis when the brush is used. Further, the rigid receptacle comprises a supporting flange (13) beneath the membrane.
  • Figures 8-12 show the steps involved in making a toothbrush according to the second aspect of the invention.
  • a perimeter frame (8) defining the outer limits of the brush head.
  • the head is shown in cross-section looking end-on.
  • the handle is not shown but it contiguous with the head.
  • the perimeter (8) provides a support for the bristle- bear-ing -surface and also-for the cap, both of which are - applied later.
  • Figure 9 is shown the rigid receptacles (4) after being moulded. These may have been moulded individually or in a group with the receptacles being separated if moulded in a group.
  • Figure 10 is shown a flexible membrane (2) moulded around the receptacles and fixing them to the perimeter (8) .
  • This forms a trampoline-like structure where the receptacles can be depressed into the chamber underneath the membrane during brushing.
  • FIG 11 a support (14) supporting a rigid receptacle (4) during affixing of a bristle tuft (11) with an anchor (12) .
  • Each receptacle may be tufted in turn or in groups depending on the size of the support (14) .
  • Figure 12 shows the cap (7) being applied to the base of the head thereby closing off the chamber which is formed beneath the membrane (2) and above the cap (7) .

Landscapes

  • Brushes (AREA)

Abstract

La présente invention concerne une brosse à dents comprenant un manche et une tête fixée sur ce manche, cette tête possédant une chambre définie par une surface porteuse de poils déformables sur le dessus et, à l'opposé de cette surface une base, les côtés de la chambre étant définis par un périmètre de la tête de la brosse, la base comprenant un capuchon indépendant du reste de la base et fixable sur celle-ci.
EP05753924A 2004-08-03 2005-06-29 Brosse à dents Withdrawn EP1773154A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05753924A EP1773154A2 (fr) 2004-08-03 2005-06-29 Brosse à dents

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04077218 2004-08-03
EP05753924A EP1773154A2 (fr) 2004-08-03 2005-06-29 Brosse à dents
PCT/EP2005/007071 WO2006012956A2 (fr) 2004-08-03 2005-06-29 Brosse a dents

Publications (1)

Publication Number Publication Date
EP1773154A2 true EP1773154A2 (fr) 2007-04-18

Family

ID=34928429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05753924A Withdrawn EP1773154A2 (fr) 2004-08-03 2005-06-29 Brosse à dents

Country Status (4)

Country Link
EP (1) EP1773154A2 (fr)
CN (1) CN1993066B (fr)
BR (1) BRPI0514025A (fr)
WO (1) WO2006012956A2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8695148B2 (en) 2002-08-09 2014-04-15 Colgate-Palmolive Company Toothbrush
US7841041B2 (en) 2002-08-09 2010-11-30 Colgate-Palmolive Company Oral care implement
JP4356902B2 (ja) * 2006-12-28 2009-11-04 信広 益子 歯ブラシ
RU2428907C2 (ru) 2007-02-02 2011-09-20 Дзе Жиллетт Компани Принадлежности для гигиены полости рта, имеющие гибкие элементы, и способы их изготовления
EP1958534A1 (fr) * 2007-02-14 2008-08-20 Trisa Holding AG Brosse à dents
US8156599B2 (en) 2007-10-03 2012-04-17 Colgate-Palmolive Company Oral care implement having a head insert
JP5970540B2 (ja) * 2011-05-09 2016-08-17 ネオブ カンパニー，リミテッド 歯ブラシ
USD764804S1 (en) 2013-11-05 2016-08-30 Colgate-Palmolive Company Oral care implement
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
BR112016021812A2 (pt) 2014-03-25 2017-08-15 Koninklijke Philips Nv Cabeça da escova
US10750847B2 (en) * 2015-05-14 2020-08-25 Koninklijke Philips N.V. Brush head arrangements
DE102016215288A1 (de) * 2016-08-16 2018-02-22 Thomas-Maximilian Böhm Vorrichtung zum Auftragen eines flüssigen Mediums
WO2021012073A1 (fr) * 2019-07-19 2021-01-28 龙昌兄弟股份有限公司 Amélioration de la tête de brosse d'une brosse à dents et son procédé de formation
JP7833887B2 (ja) * 2021-12-28 2026-03-23 ライオン株式会社 歯間ブラシ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1957363A (en) * 1932-07-27 1934-05-01 British Xylonite Co Ltd Brush
DE3927728A1 (de) * 1989-08-23 1991-02-28 Ver Buerstenfabriken Gmbh Kopfmassagebuerste mit halteplatte fuer massageborsten und verfahren zum herstellen einer kopfmassagebuerste
US5839149A (en) * 1996-08-26 1998-11-24 Scheier; Paul A. Toothbrush with resilient flexible bristle support
US5813855A (en) * 1997-09-23 1998-09-29 Crisio, Jr.; Raymond A. Illuminated toothbrush
IL144053A0 (en) * 2001-06-28 2002-12-01 Medic Nrg Ltd Improved toothbrush
DE10153369B4 (de) 2001-10-29 2005-10-06 Javanbakhsh, Hassan / Auch: Hasan Luft- und Wasserbettzahnbürstensystem
AU2003259079B2 (en) 2002-08-09 2010-09-23 Colgate-Palmolive Company Flexible dome toothbrush
BR0313875B1 (pt) 2002-08-27 2013-01-22 escova de dentes.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006012956A2 *

Also Published As

Publication number Publication date
WO2006012956A3 (fr) 2006-06-15
CN1993066B (zh) 2010-07-21
WO2006012956A2 (fr) 2006-02-09
CN1993066A (zh) 2007-07-04
BRPI0514025A (pt) 2008-05-27

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Owner name: UNILEVER PLC

Owner name: UNILEVER N.V.

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