WO2018025751A1 - 歯ブラシ - Google Patents

歯ブラシ Download PDF

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Publication number
WO2018025751A1
WO2018025751A1 PCT/JP2017/027305 JP2017027305W WO2018025751A1 WO 2018025751 A1 WO2018025751 A1 WO 2018025751A1 JP 2017027305 W JP2017027305 W JP 2017027305W WO 2018025751 A1 WO2018025751 A1 WO 2018025751A1
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WO
WIPO (PCT)
Prior art keywords
central
hair
less
flocked
tip
Prior art date
Application number
PCT/JP2017/027305
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English (en)
French (fr)
Japanese (ja)
Inventor
高橋　純
祐輔 袴田
徹弥 阿部
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 KR1020197002761A priority Critical patent/KR102539341B1/ko
Priority to CN201780048929.3A priority patent/CN109561758B/zh
Publication of WO2018025751A1 publication Critical patent/WO2018025751A1/ja

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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
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/04—Preparing bristles
    • A46D1/05—Splitting; Pointing
    • 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 toothbrush.
  • This application claims priority based on Japanese Patent Application No. 2016-152499 for which it applied to Japan on August 3, 2016, and uses the content here.
  • Patent Document 1 discloses a toothbrush capable of shortening the hair bundle at the center to form a recess and holding a dentifrice in the recess. Moreover, as a toothbrush excellent in foaming, the technique (refer patent document 2) which restrict
  • the present invention has been made in consideration of the above points, and an object of the present invention is to provide a toothbrush that is excellent in retention and dispersibility of the preparation on the upper part of the brush and can realize good foaming.
  • the toothbrush includes a handle body provided with a head portion at the tip, and a hair bundle of hairs is implanted in a plurality of flocked holes formed on the flocked surface of the head portion.
  • the flocking surface is arranged in parallel in the axial direction of the handle body, a central flocking region in which a plurality of central flocks are flocked at the approximate center in the width direction orthogonal to the axis, and the central flock in the width direction
  • a value represented by a maximum spanning width of the leading end branching portion / a hair bundle diameter formed by the body portion at a base portion of the central hair bundle exceeds 1.0 and is 2.0 or less, and the branching portion
  • the flocking density obtained by dividing the total number of hairs constituting the hair by the area of the central flock
  • a value represented by the maximum length of the outer flocked region in the width direction / the maximum length of the central flocked region in the width direction is 1.0 or more. , 5.0 or less.
  • the maximum number of the outer hair bundles arranged in the width direction is 4 or more and 8 or less, and the number of the center hair bundles arranged in the width direction. Is 2 or more and 5 or less, and the diameter of the flocked hole in which the outer hair bundle is implanted is 1.4 mm or more and 2.0 mm or less, and the diameter of the flocked hole in which the central hair bundle is implanted is 1 0.0 mm or more and 1.5 mm or less.
  • the outer hair bundle has a length on the flocked surface that is longer than a length on the flocked surface of the central hair bundle.
  • the outer bristle bundle includes bristles whose diameter gradually decreases toward the bristle tip.
  • the maximum length of all the flocked regions in which the plurality of central hair bundles and the plurality of outer hair bundles are planted in the width direction is 9.0 mm or more, 15. It is 0 mm or less.
  • FIG. 2 is a cross-sectional view taken along line AA in the head portion of the toothbrush 1 shown in FIG. 1. It is a cross-sectional view of the trunk portion 13A of the central hair 13. It is a schematic block diagram of the front-end
  • FIGS. 1 to 4 show one aspect of the present invention and do not limit the present invention, and can be arbitrarily changed within the scope of the technical idea of the present invention. Moreover, in the following drawings, in order to make each configuration easy to understand, the actual structure is different from the scale and number of each structure.
  • FIG. 1 is a plan view showing a head portion 11 of a toothbrush 1 according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view taken along line AA in the head portion 11 of the toothbrush 1 shown in FIG. .
  • the toothbrush 1 includes a handle body 2, and the handle body 2 includes a long grip portion (not shown) and a head portion 4 provided at the tip of the grip portion. It is comprised roughly by.
  • symbol O is an axis of the handle body 2, that is, a line passing through the center of the handle body 2 in the length direction of the handle body 2.
  • the head portion 4 has a substantially rectangular shape in plan view with the axis O direction as a longitudinal direction, and an arbitrary surface is a flocking surface 5 for flocking hair bundles.
  • a plurality of central flocked holes 10 having a bottomed cylindrical shape (in FIG. 1, 12 as an example) having a bottom instead of a through hole are formed on and along the axis O in FIG. 1.
  • the plurality of central flocking holes 10 are arranged in a zigzag pattern in which the positions of the adjacent central flocking holes 10 in the axis O direction are shifted in the width direction of the head portion 4 which is a direction orthogonal to the axis O direction.
  • Central hair bundles 12 in which a plurality of central bristles 13 are bundled in a substantially cylindrical shape are respectively implanted in the plurality of central flock holes 10 to form a central hair bundle group 14.
  • the central bristles 13 are composed of columnar body portions 13A and front end branch hairs having front end branch portions 13B at the front ends of the body portions.
  • the distal branch portion 13B is branched into a plurality (for example, 2 to 8) from the distal end of the base portion 13A.
  • a conventionally known hair can be used, for example, a feather hair obtained by cutting the tip of a hollow filament, or a tapered branched hair whose diameter decreases as each branched portion approaches the tip. Among them, feather hair is preferred.
  • FIG. 3 shows an example in which the center hair 13 is a feather hair.
  • FIG. 3 is a cross-sectional view of the trunk portion 13A of the center hair 13.
  • the trunk portion 13A has a plurality (four in FIG. 3) of hollow portions 13C extending in the length direction.
  • Two or more tip branch portions 13B are formed by cutting the tip of the body portion 13A.
  • Examples of the feather hair include those described in JP-A-2005-131559.
  • FIG. 4 is a schematic configuration diagram of the distal end portion of the central hair bundle 12 having the central hair 13 described above.
  • the center hair bundle 12 includes a base portion 12 ⁇ / b> A formed by base portions 13 ⁇ / b> A of a plurality of center hairs 13, and a branch portion 12 ⁇ / b> B formed by expanding branch portions 13 ⁇ / b> B of the plurality of center hairs 13.
  • the value represented by W1 / W2 is preferably more than 1.0 and not more than 2.0, where W1 is the maximum distal end width of the branch portion 12B and W2 is the diameter of the base portion 12A.
  • the length L1 of the branch part 12B is preferably 1.5 mm or more and 2.5 mm or less.
  • the length L1 of the branch part 12B is preferably 12% or more and 35% or less of the bristle length (distance from the flocked surface 5 to the tip of the branch part 12B) L2 of the central hair bundle 12. If the length L1 of the branching portion 12B is less than 12%, the value represented by W1 / W2 described above does not easily exceed 1.0, and the ratio of the base portion 13A having a large strength is large, so that the gums and the cervix There is a possibility that the contact with the part etc. becomes too strong.
  • the length L1 of the branching portion 12B exceeds 35%, the ratio of the base portion 12A becomes small, so that the waist as the central hair bundle 12 becomes too low, and the cleaning performance of the tooth neck portion becomes low, Since the actual feeling when the head part 4 enters the tooth neck part becomes dilute, the length L1 of the branch part 12B is preferably 12% or more and 35% or less of the bristle length L2 of the central hair 12.
  • the flocked surface 5 has a plurality of outer flocked holes 20 that surround the central flocked hole 10 in the width direction and the lengthwise direction and have a bottomed cylindrical shape (31 in FIG. 1 as an example) along the axis O.
  • An outer hair bundle 22 formed by bundling a plurality of outer hairs 23 in a substantially columnar shape is implanted in the outer flock hole 20.
  • the flocked surface 5 has twelve outer hair bundles 22 arranged between the side edge 7 of the head portion 4 and the central hair bundle 12 in the width direction among the 31 outer hair bundles 22.
  • Two outer hair bundle groups 24b are formed.
  • the plurality of outer flocking holes 20 are arranged in a staggered manner in which the positions of the outer flocking holes 20 adjacent in the axis O direction are shifted in the width direction of the head portion 4.
  • the plurality of outer hair bundles 22 are arranged in a staggered manner in which the positions of the outer hair bundles 22 adjacent in the axis O direction are shifted in the width direction of the head portion 4.
  • the hair length which is the length on the flocked surface 5 of the central hair bundle 12
  • the head portion 4 is formed with a recess having a depth D surrounded by the outer hair bundle 22. Since the central hair bundle 12 has a hair length shorter than that of the outer hair bundle 22, a concave portion is formed, so that the retention and foamability of the preparation are improved.
  • a central flocked region 11 indicating a region where the central hair bundle group 14 is provided is formed on the flocked surface 5.
  • the central flocking region 11 is a region surrounded by an annular line connecting the outer edges of the central flocking hole 10 in which the central flock 12 located on the outermost periphery of the central flock group 14 is planted. This annular line constitutes a common tangent line between adjacent central flock holes 10.
  • a first outer flocked region 21a indicating a region where the first outer hair bundle group 24a is provided is formed on the flocked surface 5.
  • the first outer flocked region 21a is a region surrounded by an annular line connecting the outer edges of the outer flocked holes 20 in which the outer hair bundles 22 constituting the first outer hair bundle group 24a are planted. This annular line constitutes a common tangent line between the adjacent outer flock holes 20 in the first outer hair bundle group 24a.
  • a second outer flocked region 21b indicating a region in which the second outer hair bundle group 24b is provided is formed on the flocked surface 5.
  • the second outer flocked region 21b is a region surrounded by an annular line connecting the outer edges of the outer flocked holes 20 in which the outer hair bundles 22 constituting the second outer hair bundle group 24b are planted. This annular line constitutes a common tangent line between the adjacent outer flock holes 20 in the second outer hair bundle group 24b.
  • the first outer flocked region 21a and the second outer flocked region 21b constitute an outer flocked region 21 in which a plurality of outer flocks 22 are flocked with the central hair bundle 12 sandwiched in the width direction of the head portion 4.
  • the material of the handle body 2 can be determined in consideration of the rigidity and mechanical characteristics required for the toothbrush 1. For example, by using a high-hardness resin having a bending elastic modulus (JIS K7203) in the range of 500 to 3000 MPa, the toothbrush 1 The required mechanical properties can be obtained.
  • high-hardness resins include polypropylene (PP), polyethylene terephthalate (PET), polycyclohexylenedimethylene terephthalate (PCT), polystyrene (PS), acrylonitrile butadiene styrene (ABS), and cellulose propionate (CP). ), Polyarylate, polycarbonate, acrylonitrile styrene (AS) and the like, and one or more of them can be used.
  • PP polypropylene
  • PET polyethylene terephthalate
  • PCT polycyclohexylenedimethylene terephthalate
  • PS polystyrene
  • ABS acrylonitrile butadiene st
  • the size of the head part 4 can be determined in consideration of the maximum lengths of the central flocked region 11 and the outer flocked region 21 in the width direction of the head unit 4, the operability in the oral cavity, and the like.
  • the width (maximum width) W is 11 mm or more, for example, 11 to 17 mm, and thickness T is 4 to 8 mm.
  • the maximum length L in the width direction of the head portion 4 of all the flocked regions including the central flocked region 11 and the outer flocked region 21 is 9.0 mm or greater and 15.0 mm or less. If the maximum length L of the entire flocked region is less than 9.0 mm, there is a possibility that sufficient cleaning cannot be performed. When the maximum length L of the entire flocked region is more than 15.0 mm, the resistance when the head portion 4 is advanced into the oral cavity is increased, and the operability may be lowered. When the maximum length L is 9.0 mm or more and 15.0 mm or less, it becomes possible to ensure sufficient cleaning power and operability.
  • the maximum number of outer hair bundles 22 arranged in the width direction is preferably 4 or more and 8 or less, and the center arranged in the width direction is the center.
  • the number of hair bundles 12 is preferably 2 or more and 5 or less.
  • the diameter of the outer flock hole 20, that is, the diameter of the cross section perpendicular to the length direction of the outer follicle bundle 22 is preferably 1.4 mm or more and 2.0 mm or less, and the diameter of the central flock hole 10,
  • the diameter of the cross section perpendicular to the length direction of the central hair bundle 12 is preferably 1.0 mm or more and 1.5 mm or less.
  • the hair bundle diameter of the outer hair bundle 22 When the hair bundle diameter of the outer hair bundle 22 is less than 1.4 mm, the hair bundle becomes too soft and the cleaning effect is lowered.
  • the hair bundle diameter of the outer hair bundle 22 exceeds 2.0 mm, especially when the head portion 4 is widened, the interference of the outer hair bundle 22 becomes large and the hair does not bend. For this reason, the hair ends of the outer hair bundle 22 are less likely to enter the interdental portion or the tooth neck portion, and the cleaning effect is reduced. Therefore, if the hair bundle diameter of the outer hair bundle 22 is 1.4 mm or more and 2.0 mm or less, the hair bundle does not become too soft, and the hair tip easily enters the interdental part or the neck part. It becomes possible to ensure the cleaning effect.
  • the hair bundle diameter of the center hair bundle 12 When the hair bundle diameter of the center hair bundle 12 is less than 1.0 mm, the hair as the center hair bundle 12 becomes too low, and the retention of the preparation becomes low. When the hair bundle diameter of the center hair bundle 12 exceeds 1.5 mm, the entanglement between the branch portions increases, and the dispersibility may be lowered. Accordingly, when the hair bundle diameter of the central hair bundle 12 is 1.0 mm or more and 1.5 mm or less, it is possible to ensure the retainability and dispersibility of the preparation.
  • the flocking density of the branched portion (branched hair) 12B in the central hair bundle group 14, that is, the total number of the branched portions (branched hair) 12B in the central hair bundle 12 constituting the central hair bundle group 14 is the area of the central flocked region 11.
  • the divided value (central flocking density) is preferably 1000 / cm 2 or more and 5000 / cm 2 or less. If the flocking density of the branched part (branched hair) 12B is less than 1000 / cm 2 , the branching may be insufficient due to insufficient branching, and the flocked density of the branched part (branched hair) 12B is 5,000.
  • the flocking density of the branched portion (branched hair) 12B is 1000 / cm 2 or more and 5000 / cm 2 or less, the dispersibility is excellent and good foaming can be achieved. Moreover, even if the flocking density of the branch part (branch hair) 12B is in the above range, the flocking density of the base part 12A is smaller and easier to move, so that the tooth surface and the like can be firmly polished.
  • the outer hairs 23 are ST hairs (super tapered hairs) having a tapered tip.
  • the bristle diameter in ST hair is a diameter in a base part.
  • the central hair bundle 12 has the branch portion 12B, and the value represented by the maximum width W1 of the branch portion 12B1 / the diameter W2 of the base portion 12A is 1 Since it exceeds 0.0 and is 2.0 or less, it is possible to suppress clogging of the preparation and contribute to effective use of the preparation. Further, according to this embodiment, flocking density the total number was divided by the area of the central bristle region 11 of the branch portion 12B is, for 1000 / cm 2 or more and 5000 / cm 2 or less, excellent dispersibility , Good foaming can be achieved.
  • the formulation since the value obtained by dividing the maximum length of the outer flocked region 21 in the width direction by the maximum length of the central flocked region 11 is 1.0 or more and 5.0 or less, the formulation has excellent retention. And dispersibility can be ensured.
  • the hair bundle diameter of the outer hair bundle 22 is 1.4 mm or more and 2.0 mm or less, the hair bundle is not too soft and easily enters the interdental tooth neck, The cleaning effect is enhanced.
  • bristle bundle 12 is 1.0 mm or more and 1.5 mm or less, it becomes possible to ensure the retainability and dispersibility of a formulation.
  • the outer hair bundle 22 on the flocked surface 5 is longer than the length of the central hair bundle 12 on the flocked surface 5, the outer hair bundle 22 is surrounded by the outer hair bundle 22 on the central hair bundle 12.
  • a recessed part can be formed and the retainability and foaming property of a formulation can be improved.
  • the outer hair 23 is ST hair (supertapered hair), it is possible to improve the cleaning feeling on the tooth neck.
  • the central hair bundle 12 has a substantially cylindrical shape, but may be, for example, an elliptical columnar shape in a plan view, or a polygonal column shape such as a triangular shape, a quadrangle, or a pentagon in a plan view.
  • bristle bundle diameter is made into the diameter of the perfect circle circumscribed in the shape of planar view.
  • the outer hair bundle 22 may have an elliptical columnar shape in a plan view as in the case of the central hair bundle 12, or may have a polygonal column shape such as a triangular shape, a quadrangle, or a pentagon in a plan view.
  • the central flocking hole 10 has a bottomed cylindrical shape, but the shape of the central flocking hole 10 can be determined according to the shape of the central flock 12, for example, the central flocking hole 10 is viewed in plan view. It may be an elliptical bottomed cylindrical shape, or may be a bottomed polygonal cylindrical shape such as a triangle, a quadrangle, or a pentagon in plan view. Further, the outer flocking hole 20 may have a bottomed cylindrical shape with a plan view elliptical shape, or a bottomed polygonal cylindrical shape with a triangular shape, a quadrangle, a pentagon, etc. in a plan view, as with the central flocking hole 10.
  • the diameters of all the central flock holes 10 are substantially the same.
  • the present invention is not limited to this, and the diameters of all the central flock holes 10 may be different from each other.
  • the diameters of some central flock holes 10 may be different from the diameters of other central flock holes 10.
  • the diameter of all the outer flock holes 20 is made substantially equivalent, this invention is not limited to this, Even if the diameter of all the outer flock holes 20 is mutually different.
  • the diameters of some outer flock holes 20 may be different from the diameters of other outer flock holes 20.
  • the outer hairs 23 are ST hairs, but the present invention is not limited to this.
  • the outer hairs 23 may have a uniform diameter over the length direction.
  • the tip may be a hemispherical surface or a surface parallel to the flocked surface.
  • it is preferable that some of the outer hairs 23 of the outer hair bundle 22 are ST hairs or taper hairs. More preferably, the hair 23 is ST hair or tapered hair.
  • the hair length of the center hair bundle 12 is shorter than the hair length of the outer hair bundle 22.
  • the hair length of the center hair bundle 12 is the same as the hair length of the outer hair bundle 22. That is, the hair length difference may be 0 mm, and the hair length of the center hair bundle 12 may be longer than the hair length of the outer hair bundle 22.
  • the hair lengths of the central hair bundle 12 and the outer hair bundle 12 are set so that the shape of the ends of the main hair bundle is an uneven surface that repeats the peak and the valley in the axial direction of the handle body. Good.
  • it is preferable that the hair length of the central hair bundle 12 is shorter than the hair length of the outer hair bundle 22 from the viewpoint of enhancing the retention of the preparation.
  • the central hair bundle group 14 is composed of twelve central hair bundles 12, but the number of central hair bundles 12 constituting the central hair bundle group 14 may be 11 or less, It may be 13 or more.
  • the first or second outer hair bundle group 24a, 24b is configured by twelve outer hair bundles 22, but for example, the first or second outer hair bundle group 24a, 24b. 11 or less may be sufficient as the outer hair
  • ⁇ Evaluation of dispersibility of the preparation The dispersibility of the preparation was evaluated by a sensory test using 10 expert panels. After 1 g of a commercially available dentifrice was placed on the toothbrushes shown in the Examples and Comparative Examples and brushed for 3 minutes, the amount of the dentifrice remaining on the toothbrush was evaluated according to the following evaluation criteria.
  • the average score of 10 expert panels is 3.5 or more and 4.0 or less is “ ⁇ ”, the average score is 3.0 or more, and less than 3.5 is “ ⁇ ”, and the average score is 2.0.
  • Foaming was evaluated by a sensory test using 10 expert panels. Foaming in the oral cavity was evaluated according to the following evaluation criteria when 1 g of a commercially available dentifrice was placed on the toothbrush shown in each Example and Comparative Example and brushed for 3 minutes.
  • the average score of 10 expert panels is 3.5 or more and 4.0 or less is “ ⁇ ”, the average score is 3.0 or more, and less than 3.5 is “ ⁇ ”, and the average score is 2.0.
  • A Residual rate is 30% or more.
  • B Residual rate is 20% by mass or more and less than 30% by mass.
  • delta) A residual rate is 15 to 20 mass%.
  • X Remaining rate is less than 15 mass%.
  • Tooth neck cleaning actual feeling was evaluated by a sensory test using 10 expert panels.
  • the tooth neck cleaning actual feeling of the toothbrush shown in each example and comparative example was evaluated according to the following evaluation criteria.
  • the average score of 10 expert panels is 3.5 or more and 4.0 or less is “ ⁇ ”, the average score is 3.0 or more, and less than 3.5 is “ ⁇ ”, and the average score is 2.0.
  • ⁇ and ⁇ with an average score of less than 2.0 and an average score of less than 2.0 are marked with “X”.
  • the toothbrush was judged to have a cleaning feeling.
  • about the tooth neck part cleaning actual feeling it evaluated only when the outer side hair
  • Examples 1 to 10, Comparative Examples 1 to 5 In accordance with the specifications shown in Tables 1 to 3, the central hair bundle (shown by ⁇ ) was planted in the central flocked region and the outer hair bundle (shown by ⁇ ) was planted in the outer flocked region in the same manner as the toothbrush 1 in FIG. A toothbrush was prepared.
  • the “tip width” is the maximum tip width W1 of the branch portion 12B of the central hair bundle 12.
  • the “hole diameter” is the diameter of the central flock hole 10 in which the central follicle 12 is implanted, that is, the diameter of the cross section perpendicular to the length direction of the central follicle 12, and the base 12A of the central flock 12 The diameter is W2.
  • the “tip portion (vertical direction) / hole diameter” is a measured value of W1 / W2 in the width direction of the head portion 4.
  • “Tip (width direction) / hole diameter” is a measured value of W1 / W2 in the length direction of the head portion 4.
  • “Tip (diagonal direction) / hole diameter” means a measured value of W1 / W2 in a direction connecting the centers of two adjacent flock holes that exist in a direction that is parallel or not perpendicular to the axis O direction of the head portion 4 It is.
  • "dispersibility of formulation”, “foaming”, “retention property of formulation”, and “feeling of tooth neck cleaning” were evaluated.
  • the tip width (oblique or transverse direction) W1 / base diameter (center flock hole diameter) W2 value is 0.92
  • the tip width (vertical direction) W1 / base diameter (center flock hole diameter) W2 is In Comparative Example 3 in which the tip flocking density was 792 / cm 2 in the case of 0.55, the evaluation of the foam retention was “X”, while the evaluation of the retention of the preparation was “ ⁇ to ⁇ ”. The evaluation of dispersibility was “x”.
  • the value of the tip width (oblique or transverse direction) W1 / base diameter (center flock hole diameter) W2 is 2.32
  • the tip width (vertical direction) W1 / base diameter (center flock hole diameter) W2 is In Comparative Example 4, where the tip flocking density was 9503 / cm 2 , the evaluation of the retention of the preparation was “ ⁇ to ⁇ ”, but the evaluation of foaming was “ ⁇ ”. The evaluation of dispersibility was “x”.
  • the present invention can be applied to a toothbrush.

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PCT/JP2017/027305 2016-08-03 2017-07-27 歯ブラシ WO2018025751A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020197002761A KR102539341B1 (ko) 2016-08-03 2017-07-27 칫솔
CN201780048929.3A CN109561758B (zh) 2016-08-03 2017-07-27 牙刷

Applications Claiming Priority (2)

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JP2016-152499 2016-08-03
JP2016152499A JP7199139B2 (ja) 2016-08-03 2016-08-03 歯ブラシ

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US11388985B2 (en) 2018-02-09 2022-07-19 The Gillette Company Llc Connector for a manual oral care implement
US11388984B2 (en) 2017-12-20 2022-07-19 The Gillette Company Llc Oral care implement
US11400627B2 (en) 2018-02-09 2022-08-02 The Gillette Company Llc Method for manufacturing an oral care implement
US11399622B2 (en) 2017-12-20 2022-08-02 The Gillette Company Llc Oral care implement
US11553782B2 (en) 2018-02-09 2023-01-17 The Gillette Company Llc Manual oral care implement
US11553784B2 (en) 2019-03-29 2023-01-17 The Gillette Company Llc Head for an oral care implement and oral care implement
US11571060B2 (en) 2018-09-03 2023-02-07 The Gillette Company Llc Head for an oral-care implement and a kit comprising such head
US11653752B2 (en) 2017-12-20 2023-05-23 The Gillette Company, LLC. Oral care implement
US11659922B2 (en) 2018-09-03 2023-05-30 The Gillette Company, LLC. Head for an oral-care implement and a kit comprising such head
US11672633B2 (en) 2019-11-06 2023-06-13 The Gillette Company, LLC. Handle for an electrically operated personal care implement
US11865748B2 (en) 2018-02-09 2024-01-09 The Gillette Company Llc Connector

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CN111642892A (zh) * 2020-07-06 2020-09-11 幸福草(上海)口腔护理用品有限公司 一种牙刷头部结构
KR20230120629A (ko) 2020-12-24 2023-08-17 라이온 가부시키가이샤 칫솔

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JP7199139B2 (ja) 2023-01-05
CN109561758A (zh) 2019-04-02
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