EP2394530B1 - Corps de brosse, procédé de sa fabrication et brosse à dents comportant ce corps de brosse - Google Patents

Corps de brosse, procédé de sa fabrication et brosse à dents comportant ce corps de brosse Download PDF

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Publication number
EP2394530B1
EP2394530B1 EP11168341.3A EP11168341A EP2394530B1 EP 2394530 B1 EP2394530 B1 EP 2394530B1 EP 11168341 A EP11168341 A EP 11168341A EP 2394530 B1 EP2394530 B1 EP 2394530B1
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EP
European Patent Office
Prior art keywords
basal
bristle
brush body
core
bristle bundle
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.)
Not-in-force
Application number
EP11168341.3A
Other languages
German (de)
English (en)
Other versions
EP2394530A2 (fr
EP2394530A3 (fr
Inventor
Satoshi Uchida
Masayoshi Nagayama
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Publication of EP2394530A2 publication Critical patent/EP2394530A2/fr
Publication of EP2394530A3 publication Critical patent/EP2394530A3/fr
Application granted granted Critical
Publication of EP2394530B1 publication Critical patent/EP2394530B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0016—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means
    • A46B15/0022—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means with an electrical means
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/023—Bristles with at least a core and at least a partial sheath
    • 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

  • the present invention relates to a brush body and a toothbrush including the brush body.
  • Japanese Laid-Open Patent Publication No. 63-249507 discloses a motor-driven electric toothbrush.
  • the electric toothbrush forms an electric circuit with the teeth and toothbrush bristles to generate a direct current (DC) pulse that improves the oral cleaning effect when brushing the teeth.
  • DC direct current
  • Patent document 2 describes an arrangement in which an N-type semiconductor is connected to a positive electrode of the DC power supply.
  • the N-type semiconductor comes into contact with moisture, such as saliva, in the mouth at either one of or both head and grip of the toothbrush.
  • the electric toothbrush described in this patent includes bristles, each obtained by vapor-depositing metallic titanium on the surface of a filament and oxidizing the surface of the metallic titanium to form a thin anatase titanium dioxide layer.
  • Japan National Phase Laid-Open Patent Publication No. 2000-504605 discloses a device that detects plaque on the surface of a tooth or artificial tooth when brushing the teeth.
  • This device includes an electrode, which includes an insulative outer surface and a conductive distal end placed on the surface of a tooth.
  • the electrode is a filament formed from an elastic insulative material.
  • the filament includes a core formed from a flexible conductive material.
  • Japanese Laid-Open Patent Publication Nos. 2006-102095 and 2006-180953 each disclose a toothbrush including a head.
  • An electrode is arranged on the head.
  • chloride ions in the mouth are transformed to effective chlorine to sterilize and clean the mouth.
  • JP-A-2006 102 095 discloses the arrangement of the electrode on the outer surface of the head near the bristles and the embedment of the electrode in the head in contact with the conductive bristles.
  • JP-A-2006 180 953 suggests the use of a conductive brush.
  • Japanese Laid-Open Patent Publication No. 2003-9947 describes a method for manufacturing a toothbrush.
  • the method includes bundling filaments, which are formed from an insulative material such as nylon, to form bristle bundles, fusing and solidifying basal ends of the filaments in each bristle bundle to form a fused ball, and embedding the fused balls in the bristle embedment base.
  • Toothpaste and mouthwash containing effective sterilizing medicinal components such as cetylpyridinium chloride (CPC) are known to sterilize such gaps from bacteria.
  • the medicinal components such as CPC are electrolytes, they are ionized when brushing the teeth and spread out over the entire mouth. However, it is preferable that the medicinal components be concentrated at an inflammation or lesion. Accordingly, as described in JP-A-2006 101 095 , it is preferable for the bristles that directly contact desired locations in the mouth to be conductive and have current flow to the bristles.
  • DE-A-31 14 324 describes a brush body comprising a bristle bundle including a plurality of filaments.
  • Each filament includes a core, which contains a conductive material, and an insulating sheath, which covers a side of the core.
  • the core includes a distal end and a basal end projecting out of the sheath in a longitudinal direction.
  • the bristle bundle includes a basal portion, at which the basal ends of the cores in the filaments are connected to an electrode.
  • the bristle bundle includes a distal portion, which is formed by the distal end of each core of the filaments.
  • the ratio of the conductive material at the basal portion of the bristle bundle is equal to the ratio of the conductive material at the distal portion of the bristle bundle.
  • Filaments having a so-called core-in-sheath structure may form a conductive bristle bundle.
  • a filament having a core-in-sheath structure includes a conductive core and an insulative sheath, which entirely covers the side of the core.
  • An object of the present invention is to provide a brush body that suppresses the lowering of electrical conductivity of a bristle bundle including core-in-sheath filaments.
  • a further aspect of the present invention is a method for manufacturing a brush body.
  • the method includes preparing a bristle bundle by bundling a plurality of filaments, wherein each filament includes a conductive core, which includes a distal projection and a basal projection, and an insulative sheath, which covers a portion of the core excluding the distal projection and the basal projection.
  • the method also includes fusing and integrating the basal projections of the cores of the filaments without fusing the insulative sheaths to form a fused resin terminal of the bristle bundle.
  • the method includes electrically connecting the fused resin terminal of the bristle bundle to a head of the brush body.
  • an electric toothbrush 1 includes a grip 10 and a brush body 20 attached to a grip 10.
  • the brush body 20 is vibrated by a vibration actuator 14 arranged in the grip 10.
  • the brush body 20 is detachable from the grip 10.
  • the grip 10 may be cylindrical for easy grasping by a user.
  • a grip electrode 11 that comes into contact with the user's hand is arranged on the surface of the grip 10.
  • the vibration actuator 14 includes a conductive output shaft 14a.
  • the vibration actuator 14 vibrates the output shaft 14a when power is supplied from the power supply unit 12.
  • the output shaft 14a includes a distal end, which projects from the grip 10 towards the brush body 20, and a basal end, which is electrically connected to the power supply unit 12. The distal end of the output shaft 14a is inserted into the brush body 20 when the brush body 20 is attached to the grip 10.
  • a lead plate 21 is arranged in the brush stem 20a.
  • the lead plate 21 is conductive and formed from a conductive metal material.
  • the lead plate 21 is connected to the output shaft 14a when the brush body 20 is coupled to the grip 10.
  • the head 20b includes a bristle embedment base 22 and a pad 23.
  • the bristle bundles 30 are embedded in the bristle embedment base 22.
  • the pad 23 applies elastic force to the bristle bundles 30 of the bristle embedment base 22.
  • the head 20b is formed from an insulative material. Holes 20c extend through the head 20b.
  • the bristle bundles 30 are respectively inserted into the holes 20c. Each bristle bundle 30 projects out of the brush body 20.
  • the bristle embedment base 22, which receives the bristle bundles 30, is formed from a conductive metal material.
  • the bristle embedment base 22 includes holes 22a (refer to Fig. 1 (b) ), which respectively receive the bristle bundles 30.
  • the pad 23 is elastic and may be formed by a sponge or the like. The pad 23 forces the bristle bundles 30 against the bristle embedment base 22.
  • the brush body 20 includes a cover 24, which covers the lead plate 21, the bristle embedment base 22, and the pad 23.
  • the cover 24 is preferably non-detachable from the brush stem 20a and the head 20b.
  • the cover 24 is preferably waterproof and seals the interior of the brush stem 20a and the head 20b.
  • Each filament 40 is a single thin fiber, namely, a monofilament, and has a core-in-sheath structure.
  • Each bristle bundle 30 is formed by, for example, forty filaments 40.
  • the filament 40 which has the core-in-sheath structure, includes a core 41, which contains conductive material, and an insulative sheath 42, which covers the side of the core 41.
  • the core 41 includes basal and distal ends, which project out opposite ends of the sheath 42 in a longitudinal direction of the sheath 42. In other words, the core 41 projects out of the two ends of the sheath 42 in the longitudinal direction of the filament 40.
  • the basal and distal ends of the core 41 are also referred to as basal and distal projections.
  • the sheath 42 of the filament 40 is formed from an insulative material.
  • the insulative material may be a resin such as polyamide resin or saturated polyester resin (polybutylene terephthalate).
  • the sheath 42 preferably does not contain any conductive material.
  • the core 41 contains conductive material.
  • the sheath 42 of the filament 40 is formed from nylon 6, which is a polyamide resin.
  • the sheath 42 has a volume specific resistance value of 1 ⁇ 10 7 to 1 ⁇ 10 13 ( ⁇ cm).
  • the core 41 has carbon grains, which form the conductive material, kneaded to the nylon 6, which is the main material.
  • the mass ratio of the carbon grains in the core 41 is 30%. Accordingly, the conductive material ratio of the core 41 is 30%, and the insulative material ratio of the core 41 is 70%.
  • the volume specific resistance value of the core 41 is 1 ⁇ 10 2 to 1 ⁇ 10 6 ( ⁇ cm), and the core 41 has higher conductivity than the sheath 42.
  • the volume specific resistance value indicates the volume specific resistance of an object.
  • the volume specific resistance is not the electrical resistivity at the surface of the object and is the electrical resistivity inside the object.
  • filaments 40 each having a core 41 projecting out over a relatively long length from one end of the sheath 42, is prepared.
  • each core 41 includes a distal projection and a basal projection respectively projecting out of the distal end and the basal end of the sheath 42 in the longitudinal direction.
  • the basal projection of the core 41 is longer than the distal projection of the core 41.
  • the distal projection of the core 41 projects out over two millimeters from the distal end of the sheath 42.
  • the basal projection of the core 41 projects out over five millimeters from the basal end of the sheath 42.
  • the core 41 may be cylindrical and have a diameter of 0.05 mm.
  • the sheath 42 may be cylindrical and have an outer diameter of 0.18 mm.
  • the filaments 40 are bundled together, and the cores 41 projecting out of the basal ends of the sheaths 42 are forced against a hot plate, which is heated to a predetermined temperature.
  • the hot plate 9 is heated to the fusing temperature of the resin or insulative material forming the filaments 40.
  • the hot plate 9 is heated to 260°C.
  • the cores 41 in the bundle of filaments 40 are forced against the hot plate 9, the cores 41 are fused and integrated with one another.
  • the integrated cores 41 are solidified to obtain the basal portion 31 of the bristle bundle 30.
  • the basal portion 31 of the bristle bundle 30 is obtained by fusing and solidifying the integrated cores 41.
  • the basal portion 31 may be referred to as a fused resin terminal.
  • the distal end of the core 41 in each filament 40 forms the distal portion 32 of the bristle bundle 30.
  • the distal portion 32 is the entire distal projection of each core 41.
  • the bristle bundle 30 has a diameter that is largest at the basal portion 31, namely, a maximum diameter R1.
  • the diameter R1 at the basal portion 31 of the bristle bundle 30 is larger than the diameter R2 at a bundle portion 30A corresponding to the sheaths 42, that is, at a portion of the bristle bundle 30 excluding the basal portion 31 and the distal portion 32.
  • the sheaths 42 are not fused when forming the basal portion 31 of the bristle bundle 30. Accordingly, the conductive material ratio at the basal portion 31 is equal to the conductive material ratio at the distal portions 32.
  • the number of filaments 40 forming each bristle bundle 30, the diameter of each core 41, and the length of the basal projection in each core 41 are adjusted in advance so that the basal portion 31 is formed from only the cores 41.
  • core-in-sheath filaments 140 each include a conductive core 141 and an insulative sheath 142.
  • Each core 141 includes a basal end that does not project out of or projects only slightly out of the sheath 142.
  • the cores 141 and the sheaths 142 are fused as shown in Fig. 13(b) to form an integrated basal portion 131 (see Fig. 13(c) ).
  • the conductive material ratio of the integrated basal portion 131 is lower than the conductive material ratio of a distal portion 132 due to the mixing of the insulative sheath 142.
  • the volume specific resistance of the integrated basal portion 131 is larger than the volume specific resistance of the cores 141.
  • the fusion of the sheaths 142 causes uneven distribution of the conductive material in the integrated basal portion 131.
  • the current that flows to the filaments 140 may vary between the filaments 140.
  • the bristle embedment base 22 is first arranged on the head 20b with the holes 20c of the head 20b in communication with the holes 22a of the bristle embedment base 22.
  • the bristle bundles 30 are then inserted into the holes 22a and 20c from the bristle embedment base 22.
  • the diameter R1 of the basal portion 31 of each bristle bundle 30 is greater than the diameter of the holes 22a and 20c.
  • the lead plate 21 is fixed to the bristle embedment base 22.
  • projections 22b (refer to Fig. 4(b) ), which project from one end of the bristle embedment base 22, are inserted apertures 21 a (refer to Fig. 1(b) ) extending through the lead plate 21.
  • distal ends of the projection 22b are melted and deformed to fix the lead plate 21 to the bristle embedment base 22.
  • the pad 23 is arranged on the basal portion 31. Then, referring to Fig. 4(d) , ultrasonic welding or the like is performed to integrate the cover 24 with the head 20b and the brush stem 20a. In this manner, the brush body 20 is obtained.
  • the circuit unit 13 When a user operates the switch (not shown) of the toothbrush 1 to brush his or her teeth, the circuit unit 13 electrically connects the grip electrode 11 and the bristle bundle 30 through the power supply unit 12.
  • an electric circuit, or closed circuit is formed connecting the power supply unit 12, the grip electrode 11, the user's hand, the user's gum, the bristle bundles 30, the bristle embedment base 22, the lead plate 21, and the output shaft 14a.
  • the lead plate 21 and the bristle embedment base 22 are formed from the conductive material (e.g., silver) contained in the core 41 to increase the conduction efficiency between the power supply unit 12 to the bristle bundle 30 in the electric circuit.
  • the volume specific resistance value of the lead plate 21 and the bristle embedment base 22 is smaller than the volume specific resistance value of the basal portion 31.
  • the present embodiment has the advantages described below.
  • the bristle bundles 30 are fixed to the bristle embedment base 22 without the pad 23. More specifically, the fused and solidified basal portions 31 are integrated and fixed with the bristle embedment base 22.
  • FIG. 7 A third embodiment of the present invention will now be described with reference to Figs. 7 and 10 .
  • Like or same reference numerals are given to those components that are the same as the corresponding components of the first embodiment. Such components will not be described in detail.
  • the bristle bundles 30 are fixed without using the pad 23 and the bristle embedment base 22. More specifically, basal portions 31 are integrated with one another. The lead plate 21 forces the basal portion 31 against the head 20b.
  • the head 20b functions as a base, which receives the bristle bundles 30.
  • the basal portions 31 of the bristle bundles 30 are fused and integrated with one another.
  • the distal portions 32 of the bristle bundles 30 are electrically connected with the single basal portion 31.
  • the brush body 20 which does not include the bristle embedment base 22, is prepared.
  • the bristle bundles 30 are respectively inserted into the holes 20c of the brush body 20.
  • the basal portions 31 are heated and pressurized with a heat plate (not shown) to refuse the basal portions 31. This mixes and integrates the basal portions 31 with one another. Subsequent to solidification, the single integrated basal portion 31 is obtained.
  • the lead plate 21 is arranged on the integrated basal portion 31. Ultrasonic welding is performed to integrate the cover 24 with the head 20b and the brush stem 20a and obtain the brush body 20 shown in Fig. 7 .
  • the lead plate 21 is preferably forced against the basal portion 31 by the cover 24.
  • the present embodiment has the following advantage.
  • the bristle bundles 30 are inserted into the holes 20c in the same manner as in the third embodiment. Then, the lead plate 21 is arranged on the basal portion 31. The pad 23 is arranged on the lead plate 21. Further, ultrasonic welding is performed to integrate the cover 24 with the head 20b and the brush stem 20a by ultrasonic welding. This obtains the brush body 20 shown in Fig. 11 .
  • the lead plate 21 may include a pad for elastically holding the basal portion 31.
  • the pad may be discrete from the lead plate 21.
  • the bristle bundles 30 do not have to be fixed to the base 22 or head 20b as described above.
  • the cover 24 may force the basal portions 31 against the bristle embedment base 22 in the first and fourth embodiments.
  • the material forming the filaments 40 and the conductive material contained in the core 41 are not limited to those described in the embodiments.
  • the materials for forming the head 20b, the lead plate 21, the bristle embedment base 22, which are included in the brush body 20, are also not limited to those described in the above embodiments.
  • the lead plate 21 may be formed from a metal material such as stainless alloy, which differs from the conductive material contained in the core 41.
  • the bristle embedment base 22 may be formed from a conductive resin material containing a conductive material.
  • the brush body 20 is attachable to the grip 10. Instead, the brush body 20 may be integrated with the grip 10.
  • the head 20b of the brush body 20 vibrates in the toothbrush 1 of the above embodiments.
  • the vibration function of the brush body 20 may be eliminated.

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  • Brushes (AREA)

Claims (12)

  1. Corps de brosse (20) comprenant une touffe de poils (30) comprenant une pluralité de filaments (40), dans lequel:
    chaque filament comprend une âme (41) qui contient un matériau conducteur, et une gaine isolante (42) qui recouvre un côté de l'âme,
    l'âme (41) comprend une extrémité distale et une extrémité de base faisant saillie hors de la gaine (42) dans une direction longitudinale ;
    la touffe de poils (30) comprend une partie de base (31) à laquelle les extrémités de base des âmes (41) dans les filaments sont fondues, solidifiées et intégrées les unes aux autres; et
    la touffe de poils (30) comprend une partie distale (32) qui est formée par l'extrémité distale de chaque âme (41) des filaments; dans lequel:
    le rapport du matériau conducteur au niveau de la partie de base (31) de la touffe de poils (30) est égal au rapport du matériau conducteur au niveau de la partie distale (32) de la touffe de poils (30).
  2. Corps de brosse selon la revendication 1, dans lequel la partie de base (31) de la touffe de poils (30) a un plus grand diamètre (R1) qu'une partie (30A) de la touffe de poils (30) correspondant aux gaines (42).
  3. Corps de brosse selon la revendication 1 ou 2, dans lequel la touffe de poils (30) est l'une d'une pluralité de touffes de poils, et les parties de base (31) des touffes de poils (30) sont intégrées et raccordées entre elles.
  4. Corps de brosse selon l'une quelconque des revendications 1 à 3, dans lequel la touffe de poils (30) est l'une d'une pluralité de touffes de poils, le corps de brosse (20) comprend en outre un élément conducteur (22) qui raccorde les parties de base (31) des touffes de poils (30) les unes aux autres, dans lequel l'élément conducteur (22) a une résistance spécifique au volume inférieure aux parties de base (31).
  5. Corps de brosse selon la revendication 4, dans lequel l'élément conducteur est une base (22) qui reçoit les touffes de poils (30).
  6. Corps de brosse selon la revendication 5, dans lequel les parties de base (31) des touffes de poils (30) sont intégrées avec la base (22).
  7. Corps de brosse selon la revendication 1, dans lequel la partie de base (31) de la touffe de poils (30) où seules les extrémités de base des âmes (41) sont fondues et intégrées entre elles.
  8. Corps de brosse selon la revendication 7, dans lequel les âmes (41) sont formées à partir d'un mélange de matériau conducteur et d'un matériau isolant, et le rapport est le rapport du matériau conducteur dans le mélange.
  9. Brosse à dents comprenant le corps de brosse (20) selon l'une quelconque des revendications 1 à 8.
  10. Brosse à dents selon la revendication 9, comprenant en outre un actionneur vibratoire (14) pour faire vibrer le corps de brosse (20).
  11. Procédé pour fabriquer un corps de brosse comprenant les étapes consistant à:
    préparer une touffe de poils (30) pour mettre en paquet une pluralité de filaments (40), dans lequel chaque filament comprend un âme conductrice (41) qui comprend une saillie distale et une saillie de base, et une gaine isolante (42) qui recouvre une partie de l'âme (41) sans la saillie distale et la saillie de base;
    faire fondre et intégrer les saillies de base des âmes (41) des filaments (40) sans faire fondre les gaines isolantes (42) afin de former une extrémité de résine fondue (31) de la touffe de poils (30); et
    raccorder électriquement l'extrémité de résine fondue (31) de la touffe de poils (30) à une tête du corps de brosse (20).
  12. Procédé de fabrication selon la revendication 11, dans lequel la saillie de base de l'âme (41) est plus longue que la saillie distale.
EP11168341.3A 2010-06-14 2011-06-01 Corps de brosse, procédé de sa fabrication et brosse à dents comportant ce corps de brosse Not-in-force EP2394530B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010135323A JP2012000148A (ja) 2010-06-14 2010-06-14 ブラシ体およびこれを備えた歯ブラシ

Publications (3)

Publication Number Publication Date
EP2394530A2 EP2394530A2 (fr) 2011-12-14
EP2394530A3 EP2394530A3 (fr) 2012-09-26
EP2394530B1 true EP2394530B1 (fr) 2013-07-24

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EP11168341.3A Not-in-force EP2394530B1 (fr) 2010-06-14 2011-06-01 Corps de brosse, procédé de sa fabrication et brosse à dents comportant ce corps de brosse

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Country Link
US (1) US20110304194A1 (fr)
EP (1) EP2394530B1 (fr)
JP (1) JP2012000148A (fr)
CN (1) CN102273812A (fr)

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AU2015401762B2 (en) 2015-07-07 2019-03-14 Colgate-Palmolive Company Oral care implement and monofilament bristle for use with the same
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EP3262975B1 (fr) * 2016-06-28 2019-02-20 The Procter and Gamble Company Procédé de fabrication d'une brosse
JP2018157876A (ja) * 2017-03-22 2018-10-11 ルネサスエレクトロニクス株式会社 心拍計測システム及び心拍計測方法
US11723453B2 (en) 2017-12-12 2023-08-15 Koninklijke Philips N.V. Brush head assembly and methods of manufacture
AU2019286260B2 (en) * 2018-06-11 2022-05-12 Colgate-Palmolive Company Oral care device
EP3753448A1 (fr) 2019-06-21 2020-12-23 The Procter & Gamble Company Procédé de production d'une tête de brosse à dents
EP3753449A1 (fr) 2019-06-21 2020-12-23 The Procter & Gamble Company Plaque de perforation de trous pour la fabrication d'une tête de brosse à dents et pièce associée
EP3753447A1 (fr) 2019-06-21 2020-12-23 The Procter & Gamble Company Procédé de production d'une tête de brosse à dents ou d'une partie de celui-ci
EP3753446A1 (fr) 2019-06-21 2020-12-23 The Procter & Gamble Company Support d'élément de nettoyage et tête de brosse à dents le comprenant
USD956426S1 (en) * 2019-11-25 2022-07-05 Colgate-Palmolive Company Refill head for a toothbrush
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JP2006180953A (ja) 2004-12-27 2006-07-13 Lion Corp 電動歯刷子
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JP4859916B2 (ja) * 2006-03-10 2012-01-25 株式会社クラレ 導電性複合繊維及びその製造方法
DE102006012004A1 (de) * 2006-03-16 2007-09-20 Braun Gmbh Mehrfilamentige Borsten für Zahnbürsten
JP2008161271A (ja) * 2006-12-27 2008-07-17 Lion Corp 歯ブラシ及びその製造方法
DE602009000006D1 (de) * 2008-01-10 2010-04-08 Gb Boucherie Nv Stempel zum Pressen von Faserbündeln
JPWO2011078128A1 (ja) * 2009-12-22 2013-05-09 パナソニック株式会社 ブラシ体及び歯ブラシ

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JP2012000148A (ja) 2012-01-05
CN102273812A (zh) 2011-12-14
EP2394530A2 (fr) 2011-12-14
US20110304194A1 (en) 2011-12-15
EP2394530A3 (fr) 2012-09-26

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