WO2011118538A1 - Brosse à dents - Google Patents

Brosse à dents Download PDF

Info

Publication number
WO2011118538A1
WO2011118538A1 PCT/JP2011/056644 JP2011056644W WO2011118538A1 WO 2011118538 A1 WO2011118538 A1 WO 2011118538A1 JP 2011056644 W JP2011056644 W JP 2011056644W WO 2011118538 A1 WO2011118538 A1 WO 2011118538A1
Authority
WO
WIPO (PCT)
Prior art keywords
toothbrush
head portion
hole
resin
implanting
Prior art date
Application number
PCT/JP2011/056644
Other languages
English (en)
Japanese (ja)
Inventor
幸子 中山
良祐 蜂須賀
海之 小林
Original Assignee
ライオン株式会社
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 ライオン株式会社 filed Critical ライオン株式会社
Priority to MYPI2012003966A priority Critical patent/MY183865A/en
Priority to CN201180014818.3A priority patent/CN102821648B/zh
Priority to KR1020177027933A priority patent/KR102031473B1/ko
Priority to KR1020127024423A priority patent/KR20130004299A/ko
Publication of WO2011118538A1 publication Critical patent/WO2011118538A1/fr

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/16—Brushes 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
    • 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
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/02—Bristles details
    • A46D1/0207—Bristles characterised by the choice of material, e.g. metal
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/04—Preparing bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/04—Machines for inserting or fixing bristles in bodies
    • 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 an improvement in a toothbrush.
  • This application claims priority on March 24, 2010 based on Japanese Patent Application No. 2010-068132 filed in Japan, the contents of which are incorporated herein by reference.
  • a toothbrush is manufactured by fixing a bunch of brushes of nylon or polybutylene terephthalate (PBT) with a flat wire in a flock hole provided in the head part of the handle body in advance. Since the hair bundle planted using the flat wire is folded in half, it is difficult to come out from the flock hole.
  • PBT polybutylene terephthalate
  • PP polypropylene
  • Patent Document 1 proposes a toothbrush having a handle body made of polyacetal resin and a thin head portion of 3 to 4 mm for the purpose of improving operability in the oral cavity.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a toothbrush in which a hair bundle is difficult to come out of a flock hole, is excellent in intraoral operability, and has sufficient strength.
  • the first aspect of the present invention comprises a substantially plate-like head portion provided with a plurality of flocked holes on the flocked surface, and the bristles of the brush are folded in half, and a flat wire sandwiched between them is formed in the flocked hole.
  • a toothbrush in which the shortest distance between the flocked hole and the edge is 0.4 to 0.9 mm.
  • the head portion is a toothbrush made of polybutylene terephthalate resin.
  • the toothbrush of the present invention has a bristle bundle that is difficult to come out of the flock hole, is excellent in intraoral operability, and has sufficient strength.
  • the toothbrush 1 of the present embodiment includes a handle body 1a including a head portion 10 and a bristle bundle 1b implanted in a flock hole 11 of the head portion 10.
  • the handle body 1 a includes a head portion 10, a grip portion 20 that is gripped during use, and a neck portion 30 that is disposed between the head portion 10 and the grip portion 20.
  • the head portion 10, the grip portion 20, and the neck portion 30 are made of the same resin.
  • the resin constituting the handle body 1a include polybutylene terephthalate resin (PBT), polypropylene resin (PP), polyacetal resin (POM), and resin in which a part of polycyclohexanedimethylene terephthalate is substituted with isophthalic acid (PCTA). Etc. can be used.
  • steering-wheel body 1a resin which has moderate rigidity and toughness is preferable, and resin whose bending elastic modulus is 1900 MPa or more and tensile fracture strain is 80% or more is preferable.
  • the “flexural modulus” is a value measured according to ISO 178
  • the “tensile fracture strain” is a value measured according to ISO 527-1,2. If the flexural modulus is 1900 MPa or more and the tensile fracture strain is 80% or more, the toughness of the handle body 1a is sufficiently high, and even if the head portion 10 is thinned, it is difficult to break against impact, and the fracture surface Can be prevented from becoming an acute angle.
  • the upper limits of the flexural modulus and the tensile fracture strain are not particularly limited. However, in the case of a commonly used resin, the flexural modulus is 5000 MPa or less and the tensile fracture strain is 500% or less.
  • a polybutylene terephthalate resin is preferable in that the above-described bending elastic modulus and tensile fracture strain can be easily satisfied. Polybutylene terephthalate resin is excellent in chemical resistance and heat resistance.
  • the toothbrush 1 using the polybutylene terephthalate resin for the handle body 1a is less deteriorated even if it is used for a long time, and even if the bristle bundle 1b is firmly fixed by a flat wire, it is difficult to break, so that the quality becomes higher.
  • the polybutylene terephthalate resin is a thermoplastic polyester produced by a polycondensation reaction using terephthalic acid or dimethyl terephthalate and 1,4 butanediol as raw materials.
  • Juranex manufactured by Polyplastics, Mitsubishi Engineering Plastics Examples include NOVADURAN made by Toray Industries, and Toraycon made by Toray Industries.
  • the head part 10 is a substantially flat part, and the hair bundle 1b is implanted in a plurality of flock holes 11 provided on the flocked surface 10a.
  • the flocked surface 10a of the head portion 10 has a substantially rectangular shape, both end edges 12 in the width direction are parallel to each other and along the longitudinal direction of the handle body 1a, and the end edge 13 on the most distal side is curved. Has been.
  • the thickness T of the head portion 10 is 2.0 to 4.0 mm, and preferably 2.5 to 3.5 mm. If the thickness T of the head portion 10 is less than 2 mm, the bending strength of the head portion is lowered, so that the head portion 10 may break during tooth brushing, and the hair bundle 1b is held with a flat wire. It is impossible to ensure a sufficient depth of the flock hole 11. On the other hand, when the thickness T of the head part 10 exceeds 4 mm, the intraoral operability becomes insufficient.
  • the shortest distance W between the outermost flock hole 11a in the width direction (direction perpendicular to the longitudinal direction) of the head portion 10 and the end edge 12 hereinafter, this distance W is referred to as “the edge width W”).
  • the edge width W of the head portion 10 is less than 0.4 mm, the head portion bending strength is insufficient, and the edge portion of the head portion 10 may be deformed due to stress caused by flocking.
  • the edge width W exceeds 0.9 mm, the edge width W becomes wider with respect to the thickness T of the head portion 10, and when the final molar is polished, the head portion 10 comes into contact with the gingiva or cheek mucosa and the operability is improved. It decreases and becomes uncomfortable.
  • the shortest distance between the flock hole 11b on the most distal side in the longitudinal direction of the head part 10 and the edge 13 on the tip side is 0.4 to 0.9 mm. If the shortest distance between the flock hole 11b and the edge 13 on the distal end side is less than 0.4 mm, the bending resistance of the head part may be insufficient, and if it exceeds 0.9 mm, the operability in the oral cavity may be reduced. There is.
  • the grip 20 is a rod-shaped part having a length that can be gripped by the user.
  • the soft resin may be partially or wholly covered in order to improve gripping properties.
  • the soft resin is preferably a soft resin having a hardness (JISK6253 hardness test, test condition JIS A) of 5 to 100, and more preferably 20 to 60. If the hardness of the soft resin is 5 or more, it has sufficient softness and gripping properties are further improved.
  • the soft resin examples include polyolefin-based thermoplastic elastomer, polystyrene-based thermoplastic elastomer, polyurethane-based thermoplastic elastomer, polyester-based thermoplastic elastomer, 1,2-polybutadiene-based thermoplastic elastomer, ethylene-vinyl acetate-based thermoplastic.
  • examples thereof include elastomers, polyvinyl chloride thermoplastic elastomers, natural rubber thermoplastic elastomers, fluorine thermoplastic elastomers, and trans-polyisoprene thermoplastic elastomers.
  • polyester-based thermoplastic elastomer examples include Hytrel manufactured by Toray DuPont and Primalloy manufactured by Mitsubishi Chemical Corporation.
  • the neck portion 30 is a portion that connects between the head portion 10 and the grip portion 20.
  • the width of the neck portion 30 is smaller than the width of the head portion 10. When the width of the neck portion 30 is smaller than the width of the head portion 10, the head portion 10 can be easily inserted into the oral cavity.
  • the bristle bundle 1b is constituted by a brush folded in half, and is fixed to the head portion 10 by driving a flat wire sandwiched between the brush folded in half into the flocked hole 11.
  • the material of the brush include polyamide (for example, nylon 6-12, nylon 6-10, 12 nylon, etc.), polyester (for example, polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, etc.), polypropylene, elastomer, natural Examples include materials. Moreover, these materials may be combined.
  • the cross-sectional shape of the brush is not particularly limited, and examples thereof include a circular shape, a triangular shape, a quadrangular shape, a hexagonal shape, a petal shape, and an arc shape. Moreover, you may combine these shapes. Further, the brush may be previously processed into a wave shape, a twist shape, a zigzag shape, or the like.
  • each brush may be normal hair having substantially the same diameter except for a rounded-end portion that is normally formed at the tip of the brush, or may be tapered hair whose outer diameter gradually decreases toward the tip. May be. These normal hairs and tapered hairs may be mixed, or may be changed for each flocked hole 11. Tapered hair has good penetration of the hair tip into a narrow gap, can realize soft contact feeling, and is suitable for brushing and massaging the tooth neck.
  • tapered hair examples include a tapered hair having both ends tapered as described in JP-A-6-141923, and a taper processing only at one end as described in JP-A-57-50220.
  • Examples thereof include tapered hair having a structure, and tapered hair having a core-sheath structure as described in JP-A-2001-178542.
  • the length of the brush is preferably 7 to 15 mm, and more preferably 8 to 13 mm. Further, the lengths of the brushes may all be the same or not.
  • the brushing surface formed by the tips of the whole hair bundle 1b is, for example, a plane parallel to the flocked surface 10a; a plane inclined with respect to the flocked surface 10a; and gradually separated from the flocked surface 10a along the longitudinal direction. Alternatively, it can be a gradually approaching curved surface, convex surface, concave surface, or wavy uneven surface. From the viewpoint of ease of wiping, a flat or curved surface inclined so as to gradually approach the flocked surface 10a from the front end toward the rear end is preferable.
  • the length of the flat wire is preferably a length that can fix the brush reliably and does not cause cracking and whitening of the head portion 10.
  • a flat wire longer by 0.3 to 0.5 mm than the flock hole 11 is preferable.
  • the height of the flat wire is not particularly limited, but is preferably in the range of 0.9 to 2.0 mm in order to ensure flocking aptitude while ensuring sufficient driving strength.
  • the thickness of the flat wire is preferably 0.20 to 0.25 mm.
  • the driving angle of the flat wire is appropriately selected, and in order to avoid the occurrence of cracking and whitening, a range of 5 to 80 ° with respect to the longitudinal direction of the handle body 1a is preferable, and a range of 15 to 30 ° is more preferable. preferable.
  • the driving angle of the flat line may be the same for all the flat lines or may be different.
  • material of the flat wire metal, plastic, or the like can be used, but metal is preferable and brass or aluminum is more preferable from the viewpoint of strength, productivity, and cost. Grooves and fine irregularities may be formed on the surface of the flat wire in order to make it difficult to remove from the flock hole 11.
  • the flocked holes 11 are circular and are arranged in a grid pattern on the flocked surface 10 a of the head portion 10.
  • the shape of the flocked hole 11 in the depth direction may be a cylindrical shape whose shape does not change with respect to the depth direction, may be tapered such that the hole diameter decreases toward the bottom,
  • step difference was formed in the middle may be sufficient.
  • step difference and the taper were each formed may be sufficient.
  • a chamfering process of about 0.3 mm may be performed on the bottom of the flock hole 11.
  • the diameter of the opening of the flocking hole 11 is preferably 1.0 to 2.0 mm (that is, the area is 0.75 to 3.1 mm 2 ).
  • the thickness T of the head part 10 is 2.0 mm or more and the edge width W is 0.4 mm or more, sufficient strength can be secured, and as a result, the head part bending strength is reduced. And appearance defects can be prevented. Moreover, in the toothbrush 1, since the thickness T of the head part 10 is 4.0 mm or less and the edge width W is 0.9 mm or less, the contact of the head part 10 with the oral cavity can be prevented. Excellent operability. Moreover, in the toothbrush 1, since the hair
  • the head part 10, the grip part 20, and the neck part 30 do not need to be comprised with the same resin.
  • the head portion 10 is preferably within the above-mentioned range with the same thickness as in the above embodiment, but a part on the neck portion 30 side, preferably 1 of the length of the head portion 10. / 3 or less may be thick.
  • the neck portion 30 side of the head portion 10 may be abbreviate
  • the flocked surface 10a may not be substantially rectangular shape, for example, the head part 10 may be circular shape, elliptical shape, etc.
  • the shape of the opening of the flocking hole 11 may be, for example, a polygon such as a circle, a triangle, or a rectangle, or other shapes. Moreover, all the flock holes 11 may have the same opening shape, or two or more opening shapes may be combined.
  • the arrangement pattern of the flock holes 11 may be a staggered pattern, or a pattern in which an arc-shaped flock hole group that is curved toward the center side of the head portion 10 is formed at both ends in the width direction of the head portion 10. Good. In the case of having the arc-shaped flock hole group as described above, the hair bundle 1b tends to be in close contact with the tooth neck.
  • the hair bundle 1b planted in the arc-shaped flock hole group is longer than the hair bundle 1b planted in the flock hole other than the flock hole group.
  • the difference in average brush length is preferably 0.3 to 2.0 mm, and more preferably 0.5 to 1.5 mm.
  • the hair bundle 1b itself can be formed in an arc shape, but in that case also, the hair bundle 1b is provided at both ends of the head portion 10 in the width direction, and the arc-shaped hair bundle 1b is used as the other hair bundle. It is preferable to make it longer than 1b.
  • Examples 1 to 8, Comparative Examples 1 to 3 By injection molding using the resin shown in Table 1, the hole diameter of the flocked hole is 1.55 mm, and the distance between the flocked holes is 0.725 mm.
  • the thickness W, width L, and edge width W shown in Table 1 are as follows. A handle body having a head portion, a grip portion, and a neck portion was prepared. Next, a hair bundle of a brush made of nylon (hair: 8 mil, length: 9.0 mm, flat cut) is folded in two, and a flat wire (width: 1.3 mm, length: 2.1 mm, (Thickness: 0.25 mm) was inserted and inserted into the flock holes formed in the head portion to plant hair bundles. Thereby, a toothbrush was obtained. The oral operability, head part bending strength, bristle bundle holding strength and appearance of each obtained toothbrush were evaluated as follows. The evaluation results are shown in Table 1.
  • the toothbrushes of Examples 1 to 8 in which the thickness T of the head part was 2.0 to 4.0 mm and the edge width W was 0.4 to 0.9 mm were excellent in intraoral operability.
  • the toothbrushes of Examples 1 to 5 in which the handle body resin was polybutylene terephthalate resin had excellent appearance and had sufficient head part bending resistance.
  • the toothbrushes of Examples 1 to 6 and 8 other than Example 7 in which the resin of the handle body was polypropylene resin had high bristle bundle holding strength.
  • the toothbrush of Comparative Example 1 in which the line width W of the head portion was less than 0.4 mm had a low head portion bending strength and an appearance defect.
  • the toothbrush of Comparative Example 2 in which the thickness T of the head part exceeded 4.0 mm and the toothbrush of Comparative Example 3 in which the line width W of the head part exceeded 0.9 had low oral operability.
  • the present invention is extremely useful industrially because it can provide a toothbrush in which the hair bundle is difficult to come out of the flock hole, is excellent in intraoral operability, and has sufficient strength.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)

Abstract

La présente invention concerne une brosse à dents conçue de sorte qu'un faisceau de poils soit moins susceptible de sortir de trous d'implantation. Ladite brosse à dents peut être facilement actionnée dans la cavité buccale et possède une résistance suffisante. L'invention porte plus précisément sur une brosse à dents pourvue d'une section de tête de type plaque sensiblement plate (10) dotée d'une surface d'implantation (10a), et d'un grand élément de trous d'implantation (11). Les faisceaux de poils (1b) sont pliés en deux chacun, et une ligne plate intercalée entre les deux parties pliées du faisceau de poils (1b) est entraînée dans chaque trou d'implantation (11) pour implanter le faisceau de poils (1b) dans le trou d'implantation (11). La section de tête présente une épaisseur comprise entre 2,0 et 4,0 mm, et la distance minimale (W) entre des trous d'implantation les plus à l'extérieur (11a) dans la direction de la largeur de la section de tête et un rebord correspondant (12) de la section de la tête est comprise entre 0,4 et 0,9 mm.
PCT/JP2011/056644 2010-03-24 2011-03-18 Brosse à dents WO2011118538A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
MYPI2012003966A MY183865A (en) 2010-03-24 2011-03-18 Toothbrush
CN201180014818.3A CN102821648B (zh) 2010-03-24 2011-03-18 牙刷
KR1020177027933A KR102031473B1 (ko) 2010-03-24 2011-03-18 칫솔
KR1020127024423A KR20130004299A (ko) 2010-03-24 2011-03-18 칫솔

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010068132A JP5530776B2 (ja) 2010-03-24 2010-03-24 歯ブラシ
JP2010-068132 2010-03-24

Publications (1)

Publication Number Publication Date
WO2011118538A1 true WO2011118538A1 (fr) 2011-09-29

Family

ID=44673092

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/056644 WO2011118538A1 (fr) 2010-03-24 2011-03-18 Brosse à dents

Country Status (6)

Country Link
JP (1) JP5530776B2 (fr)
KR (2) KR102031473B1 (fr)
CN (1) CN102821648B (fr)
MY (1) MY183865A (fr)
TW (1) TWI520698B (fr)
WO (1) WO2011118538A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6170802B2 (ja) * 2013-10-02 2017-07-26 ライオン株式会社 歯ブラシ用のハンドル体及びその製造方法ならびに歯ブラシ
JP6943541B2 (ja) * 2014-06-27 2021-10-06 小林製薬株式会社 歯ブラシ
ES2646278T3 (es) * 2015-02-19 2017-12-13 The Procter & Gamble Company Cabezal para un utensilio de cuidado bucal y utensilio de cuidado bucal
JP6598352B2 (ja) * 2015-03-31 2019-10-30 ライオン株式会社 歯ブラシ
SG11201807607XA (en) * 2016-03-09 2018-10-30 Lion Corp Toothbrush
CN108778049B (zh) 2016-03-09 2020-03-24 狮王株式会社 牙刷
KR102384895B1 (ko) 2016-03-09 2022-04-11 라이온 가부시키가이샤 칫솔
JP2017176224A (ja) * 2016-03-28 2017-10-05 ライオン株式会社 歯ブラシ
SG10202104233SA (en) 2016-10-28 2021-06-29 Lion Corp Toothbrush
CN109890249B (zh) 2016-10-28 2021-05-11 狮王株式会社 牙刷
KR20200051640A (ko) * 2017-09-13 2020-05-13 라이온 가부시키가이샤 칫솔
KR102059506B1 (ko) 2017-11-03 2019-12-26 최만오 세척기능이 마련된 칫솔
SG11202004600XA (en) * 2017-11-30 2020-06-29 Lion Corp Replacement brush for electric toothbrush, and electric toothbrush
KR20190137620A (ko) 2018-06-02 2019-12-11 장주연 간편 칫솔
KR20200090421A (ko) 2019-01-21 2020-07-29 이지영 치약 장착 형 칫솔
US20220395082A1 (en) * 2019-11-04 2022-12-15 Colgate-Palmolive Company Oral Care Implement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215306A (ja) * 1984-04-11 1985-10-28 ライオン株式会社 歯刷子
JPS63128826U (fr) * 1987-02-16 1988-08-23
JPH07143914A (ja) * 1993-11-22 1995-06-06 Johnson & Johnson Kk 歯ブラシ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004121823A (ja) * 2002-07-31 2004-04-22 Lion Corp 歯ブラシ
WO2005039355A1 (fr) * 2003-10-29 2005-05-06 Lion Corporation Brosse a dents
WO2005060788A1 (fr) * 2003-12-24 2005-07-07 Lion Corporation Brosse a dents
JP3129537U (ja) * 2006-09-19 2007-03-01 ライオン株式会社 歯ブラシ
JP5178529B2 (ja) * 2006-12-28 2013-04-10 ライオン株式会社 歯ブラシ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215306A (ja) * 1984-04-11 1985-10-28 ライオン株式会社 歯刷子
JPS63128826U (fr) * 1987-02-16 1988-08-23
JPH07143914A (ja) * 1993-11-22 1995-06-06 Johnson & Johnson Kk 歯ブラシ

Also Published As

Publication number Publication date
CN102821648B (zh) 2015-06-10
CN102821648A (zh) 2012-12-12
TWI520698B (zh) 2016-02-11
MY183865A (en) 2021-03-17
KR20130004299A (ko) 2013-01-09
JP2011200296A (ja) 2011-10-13
KR102031473B1 (ko) 2019-10-11
TW201143675A (en) 2011-12-16
KR20170116245A (ko) 2017-10-18
JP5530776B2 (ja) 2014-06-25

Similar Documents

Publication Publication Date Title
WO2011118538A1 (fr) Brosse à dents
JP5427486B2 (ja) 歯ブラシ
CN109890247B (zh) 牙刷
WO2016199853A1 (fr) Brosse à dents
WO2020095867A1 (fr) Brosse à dents
JP2007006937A (ja) 歯ブラシ
JP2007006938A (ja) 歯ブラシ
TW202216007A (zh) 牙刷
JP7433310B2 (ja) 歯ブラシ
US11464323B2 (en) Toothbrush
WO2020262346A1 (fr) Brosse à dents
WO2019230845A1 (fr) Brosse à dents
CN114025643B (zh) 牙刷
WO2017170126A1 (fr) Brosse à dents
WO2021131553A1 (fr) Brosse à dents
JP7378472B2 (ja) 歯ブラシ
WO2019230838A1 (fr) Brosse à dents
JP5412234B2 (ja) 歯ブラシ
JP6452220B2 (ja) 歯ブラシ
JP2024021493A (ja) 歯ブラシ
JPH0515411A (ja) 歯ブラシ
WO2016121961A1 (fr) Brosse à dents
WO2011048949A1 (fr) Brosse à dents

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180014818.3

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11759344

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 12012501839

Country of ref document: PH

ENP Entry into the national phase

Ref document number: 20127024423

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 1201004828

Country of ref document: TH

122 Ep: pct application non-entry in european phase

Ref document number: 11759344

Country of ref document: EP

Kind code of ref document: A1