WO2005087046A1 - Brosse a dents fonctionnelle - Google Patents

Brosse a dents fonctionnelle Download PDF

Info

Publication number
WO2005087046A1
WO2005087046A1 PCT/KR2004/000799 KR2004000799W WO2005087046A1 WO 2005087046 A1 WO2005087046 A1 WO 2005087046A1 KR 2004000799 W KR2004000799 W KR 2004000799W WO 2005087046 A1 WO2005087046 A1 WO 2005087046A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
bristles
toothbrush
head part
shaped
Prior art date
Application number
PCT/KR2004/000799
Other languages
English (en)
Inventor
Young-Jun Kwon
Original Assignee
Best Whasung Co. Ltd.
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 Best Whasung Co. Ltd. filed Critical Best Whasung Co. Ltd.
Priority to US10/598,497 priority Critical patent/US20080028558A1/en
Priority to JP2007503811A priority patent/JP2007529263A/ja
Publication of WO2005087046A1 publication Critical patent/WO2005087046A1/fr

Links

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00Roller skates; Skate-boards
    • A63C17/04Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
    • A63C17/06Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
    • A63C17/068Production or mounting thereof
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46DMANUFACTURE OF BRUSHES
    • A46D1/00Bristles; Selection of materials for bristles
    • A46D1/02Bristles details
    • A46D1/0276Bristles having pointed ends
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/028Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B3/00Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/16Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by wires or other anchoring means, specially for U-shaped bristle tufts
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46DMANUFACTURE OF BRUSHES
    • A46D1/00Bristles; Selection of materials for bristles

Definitions

  • the present invention relates, in general, to functional toothbrushes and, more particularly, to a functional toothbrush in which bristles easily penetrate into gaps between teeth and the efficiency of brushing tooth surfaces is superior.
  • the toothbrush having a superior appearance makes favorable impressions on consumers, thus being popular with the consumers.
  • the toothbrush of the first prior art cannot be manufactured by existing equipment.
  • a method for manufacturing the typical toothbrushes is that a plurality of bristles is set in each small circular groove having a diameter of approximately 1. ⁇ mm and, thereafter, one support pin fastens the bristles in the small circular groove.
  • the equipment used for manufacturing the typical toothbrush cannot manufacture the toothbrush of the first prior art having grooves larger than those of typical toothbrushes .
  • the bristles of each row are longitudinally arranged in each elongated-rectangular groove.
  • a correct tooth brushing method is to vertically brush teeth.
  • a method for manufacturing the toothbrush of the first prior art is as follows. Great numbers of monofilaments each having a length of several thousand meters, which correspond to the number of grooves formed on a toothbrush body and are wound around rolls, are arranged in an injection mold.
  • the monofilaments are set in the grooves to form the bristles similar to how a spinning machine weaves cloth and, simultaneously, the set bristles are integrated with the toothbrush body, while a toothbrush is manufactured through an injection molding process. Therefore, the method for manufacturing the toothbrush of the first prior art is problematic in that it is impossible to form bristles below 35mm or less in length. Moreover, the toothbrush of the first prior art uses typical bristles, but does not use a needle-shaped bristle of which an end is sharp. Hence, the bristles of the toothbrush of the first prior art cannot easily penetrate gaps between teeth or periodontal pockets which are formed on junctions between the teeth and gingivae. In an effort to overcome the above-mentioned problems, another toothbrush was proposed in Korean Patent Application No.
  • second prior art 2001-24978 (hereinafter, referred to simply as "second prior art") , which was filed by the inventor of the present invention.
  • needle-shaped bristles 3 are set in a plurality of longitudinally elongate grooves 1 which are longitudinally arranged along an outer edge of a head part 11 of a toothbrush body 10.
  • needle- shaped bristles 3 are set in a plurality of latitudinally elongate grooves 1' which are longitudinally arranged on a central portion of the head part 11 of the toothbrush body 10.
  • a method for manufacturing the toothbrush of the second prior art will be described as follows.
  • the longitudinally elongated-rectangular grooves 1 are formed on the outer edge of the head part 11 of the toothbrush body 10.
  • the latitudinally elongated-rectangular grooves V are formed on the central portion of the head part 11 of the toothbrush body 10. Thereafter, the needle-shaped bristles 3 are inserted into the longitudinally and latitudinally elongated- rectangular grooves 1 and 1' . An extended support pin 2 thereafter fastens the needle-shaped bristles 3 in each of the longitudinally and latitudinally elongated-rectangular grooves 1 and 1' . Thereafter, irregular end parts of the needle-shaped bristles 3 are cut off. Ends of remaining parts of the needle-shaped bristles 3 are treated through a grinding process.
  • the toothbrush of the second prior art has relatively large elongated- rectangular grooves, lengths of the needle-shaped bristles set in the elongated-rectangular grooves are irregularly formed. Therefore, the toothbrush of the second prior art requires a separate after-treatment, such as cutting and grinding processes. As well, the toothbrush of the second prior art lacks brushing efficiency and penetration and cleaning abilities.
  • FIG. 1 is a plan view of a conventional toothbrush having circular grooves
  • FIG. 2 is a plan view of another conventional toothbrush having rectangular grooves
  • FIG. 3 is a plan view of a further conventional toothbrush having latitudinally and longitudinally elongate grooves in which bristles are set
  • FIG. 4 is a sectional view showing a state of a bristle fastened in an elongate groove by a support pin
  • FIG. 5 is a plan view showing an elongate groove formed on a toothbrush according to a preferred embodiment of the present invention
  • FIG. 6 is a plan view of the toothbrush of the present invention
  • FIG. 7 is a perspective view of the toothbrush of the present invention
  • FIG. 8 illustrates that a needle-shaped bristle is set in the toothbrush such that a height difference between both ends of a needle-shaped bristle exists
  • FIGS. 9 through 11 are plan views of toothbrushes, according to other embodiments of the present invention.'
  • an object of the present invention is to provide a toothbrush in which a plurality of needle-shaped bristles that does not require a separate after-treatment is set in a crisscross manner.
  • Another object of the present invention is to provide a toothbrush which " has needle-shaped bristles set in a crisscross manner, thus enhancing brushing efficiency and penetration into gaps between teeth or periodontal pockets which are formed on junctions between the teeth and gingivae, and ability of cleaning the surfaces of the teeth.
  • a further object of the present invention is to provide a method for manufacturing the toothbrush having needle-shaped bristles set in a crisscross manner which reduces the number of defective products and increases productivity.
  • the present invention provides a functional toothbrush, including: rows each having needle-shaped bristles (3) set in a longitudinally elongate groove (1) and longitudinally arranged along an outer edge of a head part (11) of a toothbrush body (10) ; and other rows each having needle-shaped bristles (3) set in a latitudinally elongate groove (1') and longitudinally arranged on a central portion of the head part (11) of the toothbrush body (10) .
  • a length of each of the needle-shaped bristles (3) set in the outer edge of the head part (11) is longer than a length of each of the needle-shaped bristles (3) set in the central portion of the head part (11) by 1.5-3.5mm, and each of the elongate grooves (1, 1') has an elliptical shape.
  • the present invention provides a method for manufacturing a toothbrush provided with rows each having needle-shaped bristles (3) set in a longitudinally elongate groove (1) and longitudinally arranged along an outer edge of a head part (11) of a toothbrush body (10), and other rows each having needle- shaped bristles (3) set in a latitudinally elongate groove (1' ) and longitudinally arranged on a central portion of the head part (11) of the toothbrush body (10) .
  • Each of the elongate grooves (1, 1' ) formed on the head part (11) has an elliptical shape, and the needle-shaped bristles (3) are set such that a length of each of the needle-shaped bristles (3) set in the elongate groove (1) placed on an outside part of the head part (11) is longer than a length of each of the needle-shaped bristles (3) set in the elongate groove (1' ) placed on an inside part of the head part (11) by 1.5-3.5mm.
  • the great number of needle-shaped bristles is set in each elongate groove, compared with conventional toothbrushes, thus increasing productivity of the toothbrush. Furthermore, the needle-shaped bristles are set in elongate grooves formed on a head part of the toothbrush in a crisscross manner, thus enhancing penetration and cleaning ability. As well, because the needle-shaped bristles are set in each of the elongate grooves such that a length difference exists between the needle-shaped bristles set in an outer edge and a central portion of the head part, a contact surface between the needle-shaped bristles and teeth is increased, thus enhancing the efficiency of brushing teeth.
  • the elongate grooves each have an elliptical shape, although great numbers of needle-shaped bristles are set in the elongate groove, the needle-shaped bristles have relatively even lengths. Therefore, the present invention does not require cutting and grinding processes which were executed to manufacture the conventional toothbrushes.
  • Molars, cuspids and wisdom teeth which have the probability of becoming decayed, have rounded outer surfaces. Therefore, if lengths of bristles set in an outer edge of a head part 11 are longer than those of bristles set in a central portion of the head part 11 as the present invention, the contact surface between the bristles and the teeth, each having a rounded shape is increased. As such, when the contact surface between the bristles and .the surface of each tooth is increased, brushing efficiency and ability to clean the surface of the tooth are also increased. In the case of vertically brushing the teeth, short bristles set in the toothbrush in latitudinal directions can readily penetrate between the teeth.
  • Long bristles set in the toothbrush in longitudinal directions can clean ,the surface of the teeth and, simultaneously, can smoothly penetrate into periodontal pockets which are formed in junctions between the teeth and gingivae. At this time, it is suitable that a length difference between each short bristle and each long bristle ranges from 1.5mm to 3.5mm. If the length difference is beyond the above-mentioned range of 1.5-3.5mm, the contact surface between the bristles and the teeth becomes reduced.
  • the term "bristles set in a crisscross manner" means that rows having bristles are arranged on the toothbrush in right longitudinal -and latitudinal directions and, in addition, the rows may be arranged on the toothbrush to be inclined relative to longitudinal and latitudinal lines of the toothbrush within 30 degrees, that is, in zigzag patterns. In the case that the rows are inclined within the above-mentioned angular range, the toothbrush can achieve the purpose of the present invention.
  • a needle-shaped bristle means a bristle which decreases in diameter from the bottom to the end, thus being soft, and having superior ability in penetration into gaps between the teeth or between the periodontal pockets formed at junctions between the teeth and gingivae.
  • the needle-shaped bristles have been popular with consumers .
  • methods for manufacturing the needle-shaped bristle there are a method of mechanically grinding an end of a bristle and a method of immersing a bristle in acid or alkali chemical to dissolve its end.
  • a thickness of an end point of each of the needle- shaped bristles used in the present invention ranges from 0.01mm to 0.03mm.
  • various needle-shaped bristles having end points of different thicknesses which fall within the above-mentioned range are used.
  • the length the tapered part of each of the needle-shaped bristles used in the present invention ranges from 5mm to 12mm.
  • various needle-shaped bristles having tapers of different lengths which fall within the above-mentioned range are used.
  • various needle-shaped bristles having end points of different thicknesses and tapers of different lengths 'are used appropriate penetration and superior cleaning ability are demonstrated and, in addition, the life span of the toothbrush is enhanced. If the thickness of the end point of each of the needle-shaped bristles is less than the above-mentioned thickness range, the cleaning ability is reduced. Otherwise, if the thickness of the end point is above the above-mentioned thickness range, the hardness of the needle-shaped bristle is increased. Thus, the gingivae of a user may be damaged due to the needle-shaped bristles while brushing the teeth.
  • a method for manufacturing a conventional toothbrush which is shown in FIG. 1 and has a plurality of small circular grooves in which a plurality of bristles is set, is very simple. That is, the bristles are set in each of circular grooves and, thereafter, are fastened by a support pin, as shown in FIG. 4. In the conventional toothbrush manufactured through the above-mentioned method, each circular groove has a diameter of about 1.6mm.
  • a method of setting bristles in grooves of a toothbrush of a second prior art is the same as that of the toothbrush of FIG. 1.
  • each groove formed on the toothbrush of a second prior art is relatively large (a length of a minor axis ranges from 1.0mm to 2.0mm, a length of a major axis ranges from 3.0mm to 4.5mm), an extended support pin having a similar shape as that of the groove must be used to fasten the bristles in the groove.
  • the lengths of the exposed parts of the bristles set in the toothbrush of the second prior art are different from each other, unlike the conventional toothbrush having the small circular grooves.
  • a separate cutting process is executed to even the uneven exposed parts of the bristles.
  • thicknesses of remaining ends of the bristles are increased.
  • a separate grinding process is required to taper the bristles. As such, because the separate processes are added, workability is reduced.
  • the second prior art is problematic in that the bristles of the toothbrush are rough.
  • a plurality of elongate grooves having elliptical shapes is formed in the head part of the toothbrush body.
  • the present invention solves the problems associated with the toothbrush of the second prior art.
  • the reason why the lengths of the bristles of the second prior art are irregularly formed when the bristles are set in the toothbrush is that the grooves of the second prior art are larger than the circular grooves of the conventional toothbrush.
  • each of the grooves of the second prior art has a rectangular shape. That is, although the elongate grooves of the present invention each have the same size as the groove of the second prior art, if the elongate groove has an elliptical shape or a predetermined shape similar to an elliptical shape, the problem of the irregular setting of the bristles is solved.
  • the predetermined shape similar to the elliptical shape means that a shape is oblong but each corner is rounded, as shown in FIG. 5.
  • the toothbrush of the present invention provided through the above-mentioned process is shown in FIGS. 6 and 7.
  • each of the needle-shaped bristles is set in each of the elongate grooves after being folded such that a height difference of 0.5-1.5mm exists between both ends of the folded needle- shaped bristle.
  • the needle-shape bristles which are set such that height differences exist between their ends have penetration ability superior to bristles which are set such that both of their ends are leveled.

Abstract

L'invention porte sur une brosse à dents fonctionnelle améliorant la pénétration des poils entre les dents et l'efficacité du brossage des surfaces. Ladite brosse à dents comporte: des rangées de poils très fins (3) posés dans des rainures longitudinales allongées (1) disposées le long des côtés de la tête (11) du corps de brosse (10); et d'autres rangées de poils fins (3 posés dans des rainures transversales allongées (1) disposées au centre de la tête (11) du corps de brosse (10). La longueur des poils (3) des rainures longitudinales dépasse celle des poils (3) des rainures transversales de 1,5 à 3,5 mm, et chacune des rainures allongées (1, 1') présente une forme elliptique.
PCT/KR2004/000799 2004-03-16 2004-04-07 Brosse a dents fonctionnelle WO2005087046A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/598,497 US20080028558A1 (en) 2004-03-16 2004-04-07 Functional Toothbrush
JP2007503811A JP2007529263A (ja) 2004-03-16 2004-04-07 機能性歯ブラシ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2004-0017571 2004-03-16
KR1020040017571A KR100577105B1 (ko) 2004-03-16 2004-03-16 기능성 칫솔

Publications (1)

Publication Number Publication Date
WO2005087046A1 true WO2005087046A1 (fr) 2005-09-22

Family

ID=35064509

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2004/000799 WO2005087046A1 (fr) 2004-03-16 2004-04-07 Brosse a dents fonctionnelle

Country Status (5)

Country Link
US (1) US20080028558A1 (fr)
JP (1) JP2007529263A (fr)
KR (1) KR100577105B1 (fr)
CN (1) CN100464667C (fr)
WO (1) WO2005087046A1 (fr)

Cited By (7)

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Publication number Priority date Publication date Assignee Title
US20110138559A1 (en) * 2009-12-10 2011-06-16 Ronald Plotka Toothbrush With Multi-Tiered Bristles
US8042217B2 (en) 2004-11-02 2011-10-25 Colgate-Palmolive Company Toothbrush and method of making the same
USD764176S1 (en) 2014-07-31 2016-08-23 Colgate-Palmolive Company Oral care implement
USD764177S1 (en) 2014-07-31 2016-08-23 Colgate-Palmolive Company Oral care implement
USD767281S1 (en) 2013-02-26 2016-09-27 Colgate-Palmolive Company Bristle bearing surface of a toothbrush head
USD961269S1 (en) 2020-07-31 2022-08-23 Colgate-Palmolive Company Oral care implement
US11622618B2 (en) 2018-12-13 2023-04-11 Colgate-Palmolive Company Oral care implement

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KR100666460B1 (ko) * 2005-04-08 2007-01-09 권영준 침상모가 식모된 칫솔의 제조방법 및 이 방법으로 제조된칫솔
EP2184032A1 (fr) * 2008-11-05 2010-05-12 Braun Gmbh Brosse à dents éléctrique et tête de brosse associée
KR100972388B1 (ko) * 2009-07-31 2010-07-27 주식회사 베스트화성 침투력과 쇄소성이 향상된 침상모가 식모된 칫솔 및 그 제조방법
US20110030160A1 (en) * 2009-08-06 2011-02-10 Mcneil-Ppc, Inc. Bristle configuration
US8529150B2 (en) 2009-09-23 2013-09-10 Richard Carl Olson Toothbrush device
USD654695S1 (en) 2009-12-18 2012-02-28 Colgate-Palmolive Company Toothbrush
USD654270S1 (en) 2009-12-18 2012-02-21 Colgate-Palmolive Company Toothbrush handle
USD654696S1 (en) 2009-12-18 2012-02-28 Colgate-Palmolive Company Toothbrush handle with tissue cleaner
USD675830S1 (en) 2009-12-18 2013-02-12 Colgate-Palmolive Company Toothbrush
AU2009357643B2 (en) * 2009-12-18 2014-02-27 Colgate-Palmolive Company Toothbrush having a closed-loop arrangement of cleaning elements
US8863345B2 (en) * 2009-12-18 2014-10-21 Colgate-Palmolive Company Oral care implement having a closed-loop arrangement of cleaning elements
ES2733926T3 (es) 2010-06-17 2019-12-03 Johnson & Johnson Consumer Inc Configuración de cerdas
USD712155S1 (en) * 2011-05-02 2014-09-02 Colgate-Palmolive Company Toothbrush
USD754443S1 (en) 2014-06-11 2016-04-26 Colgate-Palmolive Company Oral care implement
KR102377532B1 (ko) * 2015-04-22 2022-03-21 주식회사 엘지생활건강 칫솔
US10244857B2 (en) 2016-08-29 2019-04-02 Colgate-Palmolive Company Oral care implement and filament for the same
CA3021410C (fr) * 2017-10-27 2023-12-12 Sunstar Americas, Inc. Tete a soies destinee a une brosse a dents electrique
US10849419B2 (en) * 2018-03-08 2020-12-01 Olson Ip Technologies, Inc. Oral care device
USD895296S1 (en) * 2020-04-17 2020-09-08 Shenzhen Ya Bei Kang Technology Co., Ltd. Combination electric toothbrush and charging stand
KR20230087200A (ko) 2021-12-09 2023-06-16 김백윤 기능성 칫솔모가 구비된 칫솔

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US5926897A (en) * 1994-12-01 1999-07-27 The Procter & Gamble Company Toothbrush having bristles for interproximal cleaning
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8042217B2 (en) 2004-11-02 2011-10-25 Colgate-Palmolive Company Toothbrush and method of making the same
US20110138559A1 (en) * 2009-12-10 2011-06-16 Ronald Plotka Toothbrush With Multi-Tiered Bristles
USD767281S1 (en) 2013-02-26 2016-09-27 Colgate-Palmolive Company Bristle bearing surface of a toothbrush head
USD797459S1 (en) 2013-02-26 2017-09-19 Colgate-Palmolive Company Toothbrush head
USD764176S1 (en) 2014-07-31 2016-08-23 Colgate-Palmolive Company Oral care implement
USD764177S1 (en) 2014-07-31 2016-08-23 Colgate-Palmolive Company Oral care implement
USD813550S1 (en) 2014-07-31 2018-03-27 Colgate-Palmolive Company Oral care implement
USD814796S1 (en) 2014-07-31 2018-04-10 Colgate-Palmolive Company Oral care implement
USD860653S1 (en) 2014-07-31 2019-09-24 Colgate-Palmolive Company Toothbrush
USD886460S1 (en) 2014-07-31 2020-06-09 Colgate-Palmolive Company Toothbrush
US11622618B2 (en) 2018-12-13 2023-04-11 Colgate-Palmolive Company Oral care implement
USD961269S1 (en) 2020-07-31 2022-08-23 Colgate-Palmolive Company Oral care implement

Also Published As

Publication number Publication date
CN100464667C (zh) 2009-03-04
KR100577105B1 (ko) 2006-05-08
US20080028558A1 (en) 2008-02-07
JP2007529263A (ja) 2007-10-25
KR20050092506A (ko) 2005-09-22
CN1925769A (zh) 2007-03-07

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