EP0201232A1 - Brosse à dents - Google Patents

Brosse à dents Download PDF

Info

Publication number
EP0201232A1
EP0201232A1 EP86302899A EP86302899A EP0201232A1 EP 0201232 A1 EP0201232 A1 EP 0201232A1 EP 86302899 A EP86302899 A EP 86302899A EP 86302899 A EP86302899 A EP 86302899A EP 0201232 A1 EP0201232 A1 EP 0201232A1
Authority
EP
European Patent Office
Prior art keywords
bristles
brushing surface
section
viewed
toothbrush
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Withdrawn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
EP86302899A
Other languages
German (de)
English (en)
Inventor
Joseph Lai Ming
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0201232A1 publication Critical patent/EP0201232A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • THIS INVENTION relates to improvements in or relating to toothbrushes.
  • Previously proposed toothbrush designs concerned either the shape of the handle or the hardness of the material(s) used for the bristles.
  • the brushing surface is conventionally flat and parallel to the plane of the handle so that the bristles present a uniformly rectangular transverse cross section. It has also been proposed to provide a tuft of relatively long bristles at the front end of the brush, that is to say, the end remote from the handle. However, the transverse cross-sectional shape of the brushing surface has not been varied.
  • U.K. Patent No. 542715 discloses a toothbrush in which the bristles on the outside of the brush are shorter than the central bristles, thus causing the height of the brush to decrease towards the edges of the brush.
  • the shorter outer bristles have the purpose of mutually reinforcing the central, longer bristles.
  • the tops of the central bristles form a flat brushing surface, but the outer shorter bristles do not engage the teeth and so are not involved in the brushing operation.
  • tooth-brushing The primary purpose of tooth-brushing is to get rid of organic matter between the gum and the teeth to avoid build-up of dental plaque.
  • a recommended brushing method is to brush at an angle to the tooth and gum junction whilst making horizontal movements.
  • a conventional brush having a flat surface one side of the brush meets with more pressure whilst the other side is left unused. Furthermore, cleaning is not very effective between the tooth and gum.
  • the brushing surface is set at an angle to the plane of the handle, as viewed in transverse cross-section.
  • a preferred aspect of the invention therefore provides a toothbrush having a generally convex brushing surface, as viewed in transverse cross section.
  • the brushing surface may either be curved or bevelled.
  • Figure I A shows a conventional toothbrush of uniformly rectangular transverse cross section. As can be seen in Figure IB, cleaning is not very effective at the junction between tooth and gum.
  • Figures 2 and 5 show a toothbrush in accordance with the invention in which the brushing surface is set at an angle to the plane of the handle 1, as viewed in transverse cross section.
  • a similar effect could be obtained by keeping the brushing surface parallel to the plane of the handle I but setting the bristles 2 at an angle other than 90° to the plane of the handle I so that the bristles present a uniformly parallelogrammatic transverse cross-section.
  • Figures 3, 4 and 6 show toothbrushes in accordance with the invention in which the brushing surface is generally convex as viewed in transverse cross section.
  • the brushing surface is curved
  • Figure 4 shows a toothbrush having an angled brushing surface made up of a number of smaller surfaces.
  • the bristles 2 in both cases are shown as of varied length. However, the bristles 2 could be of constant length and the convex brushing surface achieved by providing a correspondingly convex handle I. Also, although the bristles 2 are shown as parallel, they could be splayed so as to extend along radii of curvature of the brushing surface.
  • toothbrushes of the present invention improve cleaning at the tooth-gum junction.
  • the handle I may be a manually held handle or adapted to be connected to the vibrating mechanism of an electric toothbrush and can comprise any suitable material such as a tough moulded plastics material.
  • the bristles can comprise any suitable material such as bristle or a synthetic material such as nylon.

Landscapes

  • Brushes (AREA)
EP86302899A 1985-05-07 1986-04-17 Brosse à dents Withdrawn EP0201232A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8511478 1985-05-07
GB858511478A GB8511478D0 (en) 1985-05-07 1985-05-07 Toothbrushes

Publications (1)

Publication Number Publication Date
EP0201232A1 true EP0201232A1 (fr) 1986-11-12

Family

ID=10578732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86302899A Withdrawn EP0201232A1 (fr) 1985-05-07 1986-04-17 Brosse à dents

Country Status (3)

Country Link
EP (1) EP0201232A1 (fr)
JP (1) JPS61263407A (fr)
GB (2) GB8511478D0 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4766633A (en) * 1987-05-18 1988-08-30 Clark Quentin S Tooth and sulcus brush
DE4442001A1 (de) * 1994-11-28 1996-06-05 Hahn Rainer Vorrichtung zur Reinigung von Zahn- oder Zahnersatzoberflächen
DE4444243A1 (de) * 1994-12-13 1996-06-20 Joerg Koettgen Fa Borstenfeld für Zahnbürsten und andere Zahnreinigungsgeräte
CN106491231A (zh) * 2016-12-22 2017-03-15 刘贵增 牙刷和牙刷刷头

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO180145C (no) * 1993-09-10 1997-02-26 Harald Berge Tannbörste og tildannelse av samme
DE19533144C2 (de) * 1995-09-08 1999-09-16 Coronet Werke Gmbh Zahnbürste
US5564148A (en) * 1995-09-11 1996-10-15 Pr+E,Acu E+Ee Vost; Solange Dental prosthesis cleaning instrument
GB2321183A (en) * 1997-01-17 1998-07-22 Galpathage Amarasena Perera Toothbrush
JP2002303803A (ja) * 2001-01-30 2002-10-18 Olympus Optical Co Ltd 撮像装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR646729A (fr) * 1928-01-05 1928-11-15 Brosse à dents prothétique
FR686429A (fr) * 1929-12-11 1930-07-25 Brosse à dents
CH169650A (de) * 1933-05-30 1934-06-15 M Schmid Zahnbürste.
US2154352A (en) * 1937-05-17 1939-04-11 Howard C Peterson Tooth brush
USRE22938E (en) * 1947-11-25 Toothbrush
FR2301199A1 (fr) * 1975-02-21 1976-09-17 Nawara Jerzy Brosse a dents a contour profile de l'ensemble des touffes
US4033008A (en) * 1976-04-05 1977-07-05 Colgate-Palmolive Company Toothbrush

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB438858A (en) * 1935-05-24 1935-11-25 Johnson & Johnson Improvements in or relating to tooth brushes
GB542715A (en) * 1941-11-01 1942-01-23 Owens Staple Tied Brush Compan Improvements in or relating to tooth brushes
GB889104A (en) * 1960-10-03 1962-02-07 James Calogero Gambino Tooth brush
GB946283A (en) * 1962-11-22 1964-01-08 Laverne Marion Cowan Toothbrush
US4209871A (en) * 1978-05-30 1980-07-01 Raymond Ernest Toothbrush with improved interproximal and free gingival margin accessibility
US4351080A (en) * 1980-06-30 1982-09-28 Milton Grossman Toothbrush with curved bristles and handle
US4493125A (en) * 1980-08-05 1985-01-15 Collis George C Toothbrush with curved bristles
US4382309A (en) * 1980-08-05 1983-05-10 Collis George C Toothbrush
IT8136121V0 (it) * 1981-11-06 1981-11-06 Avantgarde Spa Spazzolino da denti munito di setole ad altezza differenziata
DE3378248D1 (en) * 1983-07-05 1988-11-24 Raymond Ernest Modular interproximal toothbrushes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22938E (en) * 1947-11-25 Toothbrush
FR646729A (fr) * 1928-01-05 1928-11-15 Brosse à dents prothétique
FR686429A (fr) * 1929-12-11 1930-07-25 Brosse à dents
CH169650A (de) * 1933-05-30 1934-06-15 M Schmid Zahnbürste.
US2154352A (en) * 1937-05-17 1939-04-11 Howard C Peterson Tooth brush
FR2301199A1 (fr) * 1975-02-21 1976-09-17 Nawara Jerzy Brosse a dents a contour profile de l'ensemble des touffes
US4033008A (en) * 1976-04-05 1977-07-05 Colgate-Palmolive Company Toothbrush

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4766633A (en) * 1987-05-18 1988-08-30 Clark Quentin S Tooth and sulcus brush
DE4442001A1 (de) * 1994-11-28 1996-06-05 Hahn Rainer Vorrichtung zur Reinigung von Zahn- oder Zahnersatzoberflächen
DE4442001C2 (de) * 1994-11-28 1998-04-16 Hahn Rainer Vorrichtung zur Reinigung von Zahn- oder Zahnersatzoberflächen
DE4444243A1 (de) * 1994-12-13 1996-06-20 Joerg Koettgen Fa Borstenfeld für Zahnbürsten und andere Zahnreinigungsgeräte
CN106491231A (zh) * 2016-12-22 2017-03-15 刘贵增 牙刷和牙刷刷头

Also Published As

Publication number Publication date
GB8609437D0 (en) 1986-05-21
GB8511478D0 (en) 1985-06-12
GB2178304A (en) 1987-02-11
JPS61263407A (ja) 1986-11-21

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19870513