WO2016121961A1 - Brosse à dents - Google Patents

Brosse à dents Download PDF

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Publication number
WO2016121961A1
WO2016121961A1 PCT/JP2016/052747 JP2016052747W WO2016121961A1 WO 2016121961 A1 WO2016121961 A1 WO 2016121961A1 JP 2016052747 W JP2016052747 W JP 2016052747W WO 2016121961 A1 WO2016121961 A1 WO 2016121961A1
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WO
WIPO (PCT)
Prior art keywords
hair
region
hair bundle
toothbrush
bundle
Prior art date
Application number
PCT/JP2016/052747
Other languages
English (en)
Japanese (ja)
Inventor
奥田　靖
洋子 明間
祐貴 猪谷
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 KR1020167036093A priority Critical patent/KR102622532B1/ko
Priority to CN201680003305.5A priority patent/CN107205541A/zh
Priority to SG11201705074UA priority patent/SG11201705074UA/en
Priority to JP2016572202A priority patent/JP6598383B2/ja
Priority to MYPI2017702471A priority patent/MY191767A/en
Publication of WO2016121961A1 publication Critical patent/WO2016121961A1/fr

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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
    • A46B9/028—Bristle 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
    • 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
    • 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 a toothbrush.
  • This application claims priority based on Japanese Patent Application No. 2015-015466 filed in Japan on January 29, 2015, the contents of which are incorporated herein by reference.
  • a toothbrush is made by implanting a bunch of bristles by bundling a plurality of bristles by a method of driving a flat wire into a plurality of flock holes provided on the flocking surface of the head portion or fusing with heat. It is composed by.
  • a toothbrush it is desired that a toothbrush be used to firmly polish the interdental, cervical region (between teeth and gums), tooth surface, and back teeth with a single toothbrush. Therefore, various ideas have been made on the arrangement of the hair bundles, the shape of the ends of the hairs, and the like from the viewpoint of realizing effective cleaning and a good feel at the time of cleaning.
  • a first hair bundle group is arranged at the tip of the flocked surface of the flocking table (head portion), and a second hair bundle group arranged at the center of the flocked surface excluding the tip portion; And having a third hair bundle group arranged outside the second hair bundle group so as to sandwich the second hair bundle group from the width direction of the flocking table,
  • a toothbrush configured such that the plurality of hair bundles constituting the second hair bundle group has the highest height and the plurality of hair bundles constituting the third hair bundle group has the lowest height is disclosed. Yes.
  • Patent Document 2 includes a flocking surface having a tip end region, a central band-like region of the rear portion, and a pair of outer band-like regions, a tip hair bundle group in the tip end region, and a center in the center strip-like region.
  • a hair bundle group is planted in each outer belt-like region, and the tip hair bundle group, the central hair bundle group, and each outer hair bundle group have different unified characteristics.
  • Patent Document 2 discloses forming a profile of a mountain shape on the surface of a brush part.
  • the height of the plurality of hair bundles constituting the second hair bundle group is higher than the height of the plurality of hair bundles constituting the third hair bundle group. Therefore, it is difficult to apply a hair bundle to the tooth neck, and it is difficult to sufficiently secure the cleaning power of the tooth neck.
  • bristle bundle group arrange
  • This invention is made
  • a toothbrush according to one aspect of the present invention is a toothbrush in which a plurality of hair bundles are implanted on a flocked surface of a head portion, and the flocked surface is formed on a distal end portion of the head portion.
  • a first region disposed; a second region disposed between the first region and a rear end of the head portion; and a central portion in a width direction of the head portion; and the second region A pair of third regions arranged outside the region and sandwiching the second region from the width direction of the head portion, and at least the second region in the length direction of the head portion.
  • the bristles constituting the first to fourth hair bundles may be tapered hairs.
  • the diameters of the tips of the bristles constituting the second hair bundle are the first hair bundle, the third hair bundle, and the fourth hair. You may be larger than the diameter of the front-end
  • the shape of the hair constituting the first and fourth hair bundles may be a spiral shape.
  • the fourth region is disposed so as to divide the pair of third regions, and in the length direction of the head portion, the fourth region You may arrange
  • the total area of the first region is A1
  • the total area of the second region is A2
  • the total area of the third region is A3
  • a single toothbrush can sufficiently ensure the cleaning power of each part of the interdental region, the neck portion, the tooth surface, and the back teeth.
  • FIG. 1 is a front view of a toothbrush according to a first embodiment of the present invention.
  • FIG. 2 is a side view of the toothbrush shown in FIG.
  • FIG. 3 is a rear view of the toothbrush shown in FIG. 1 to 3, the same reference numerals are given to the same components.
  • a plan view of the toothbrush 10 from the side on which the brush part 16 is formed is referred to as a front view, and a view in plan view of the toothbrush 10 from the side opposite to the side on which the brush part 16 is formed. It is called a figure.
  • the X1 and X2 directions shown in FIGS. 1 and 3 indicate the width direction of the head portion 11.
  • the Y1 and Y2 directions shown in FIGS. 1 to 3 indicate the length direction of the head portion 11.
  • the Z1 and Z2 directions shown in FIG. 2 indicate the height direction of the first to fourth hair bundles 31 to 34 constituting the brush portion 16.
  • the toothbrush 10 includes a head part 11, a neck part 13, a handle part 14, and a brush part 16.
  • FIG. 4 is an enlarged view of a portion surrounded by a region A shown in FIG. 4, the same components as those shown in FIGS. 1 to 3 are denoted by the same reference numerals.
  • the head unit 11 includes a head unit body 18 and a plurality of first to fourth flocking holes 21 to 24.
  • the rear end portion of the head portion main body 18 is configured integrally with one end of the neck portion 13.
  • the head body 18 has a flocked surface 26 on the front side.
  • the flocked surface 26 includes one first region 26-1, two second regions 26-2, and a pair of third regions 26-3A and 26-3B (two pairs of third regions). And one fourth region 26-4.
  • the first region 26-1 is disposed at the tip of the head unit 11.
  • the first region 26-1 is a region partitioned by surrounding the plurality of first flocking holes 21.
  • the first region 26-1 can be C-shaped in a plan view.
  • the first region 26-1 having a C-shape in plan view is shown as an example, but the first region 26-1 may be disposed at the tip of the head unit 11.
  • it is not limited to the shape shown in FIG.
  • the two second regions 26-2 are provided between the first region 26-1 and the rear end of the head portion 11 and in the central portion.
  • the two second regions 26-2 are arranged to face each other in the Y1 and Y2 directions via a fourth region 26-4 extending in the X1 and X2 directions.
  • the second region 26-2 is a region partitioned by surrounding the plurality of second flocking holes 22. Note that the shape of the second region 26-2 illustrated in FIG. 4 is an example, and is not limited to the shape illustrated in FIG.
  • the pair of third regions 26-3A has two third regions 28 and 29.
  • the third regions 28 and 29 are provided outside the second region 26-2 disposed on the first region 26-1 side.
  • the third regions 28 and 29 are arranged so as to sandwich the second region 26-2 from the X1 and X2 directions.
  • the third regions 28 and 29 are regions partitioned by surrounding the plurality of third flocking holes 23.
  • the third regions 28 and 29 constituting the pair of third regions 26-3A are arranged to face each other in the X1 and X2 directions via the second region 26-2.
  • the pair of third regions 26-3B has the same configuration as the pair of third regions 26-3A except that the arrangement positions thereof are different, and includes two third regions 28 and 29. .
  • the third regions 28 and 29 constituting the pair of third regions 26-3B are provided outside the second region 26-2 disposed on the rear end side of the head portion 11.
  • the third regions 28 and 29 constituting the pair of third regions 26-3B are arranged so as to sandwich the second region 26-2 from the X1 and X2 directions.
  • the shape of the third regions 28 and 29 shown in FIG. 4 is an example, and is not limited to the shape shown in FIG.
  • the fourth region 26-4 is a region partitioned by surrounding the plurality of fourth flocking holes 24.
  • the fourth region 26-4 includes two third regions 28 arranged in the Y1 and Y2 directions, two second regions 26-2 arranged in the Y1 and Y2 directions, and the Y1 and Y2 directions. It is arranged between the two arranged third regions 29 and extends in the X1 and X2 directions.
  • the fourth region 26-4 includes two third regions 28 arranged in the Y1, Y2 directions, two second regions 26-2 arranged in the Y1, Y2 directions, and Y1,
  • the two third regions 29 arranged in the Y2 direction are separated from each other.
  • the length (the length in the Y1, Y2 direction) of the head unit body 18 configured as described above is not particularly limited, but is preferably in the range of 10 mm to 30 mm, and more preferably in the range of 12 mm to 28 mm. . If the length of the head portion main body 18 is shorter than 10 mm, it may be difficult to ensure a sufficient area of the flocked surface 26 on which a plurality of first to fourth hair bundles 31 to 34 described later are implanted. is there. On the other hand, if the length of the head portion main body 18 is longer than 30 mm, it may be difficult to improve the operability of the toothbrush 10 in the oral cavity. Therefore, by setting the length of the head portion main body 18 to 10 mm or more and 30 mm or less, the area of the flocked surface 26 can be sufficiently secured and the operability of the toothbrush 10 in the oral cavity can be improved.
  • the width (width in the X1 and X2 directions) of the head unit body 18 configured as described above is not particularly limited, but is preferably in the range of 7 mm to 13 mm, and more preferably in the range of 8 mm to 12 mm. If the width of the head portion main body 18 is narrower than 7 mm, it may be difficult to secure a sufficient area of the flocked surface 26 on which a plurality of first to fourth hair bundles 31 to 34 to be described later are flocked. . On the other hand, if the width of the head portion main body 18 is wider than 13 mm, it may be difficult to improve the operability of the toothbrush 10 in the oral cavity.
  • the width (X1, X2 direction width) of the head portion main body 18 is set to 7 mm or more and 13 mm or less, the area of the flocked surface 26 can be sufficiently secured and the operability of the toothbrush 10 in the oral cavity is improved. Can do.
  • a hard resin can be used as the material of the head main body 18 having the above-described configuration.
  • a resin having a flexural modulus (JIS K7203) in the range of 500 to 3000 MPa can be used.
  • the hard resin include polypropylene (PP), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycyclohexylenedimethylene terephthalate (PCT), polyacetal (POM), polystyrene (PS), acrylonitrile butadiene, and the like.
  • ABS Styrene resin
  • CP cellulose propionate
  • AS acrylonitrile / styrene copolymer resin
  • a soft resin for example, a resin having a hardness of JIS K 7215 Shore A of 90 or less can be used.
  • an elastomer resin such as a polyolefin-based elastomer, a styrene-based elastomer, or a polyester-based elastomer can be used.
  • PP polypropylene
  • the plurality of first flocking holes 21 are provided in the head body 18 corresponding to the first region 26-1 at predetermined intervals in the X1, X2 direction and the Y1, Y2 direction. The upper ends of the plurality of first flocking holes 21 are exposed from the flocking surface 26.
  • the plurality of first flocking holes 21 are holes for flocking a first hair bundle 31 (described later) used when brushing the back teeth.
  • FIG. 4 although the case where the seven 1st flocking holes 21 were provided was illustrated as an example, the number of the some 1st flocking holes 21 should just be two or more, and is shown in FIG. It is not limited to the configuration.
  • the plurality of second flock holes 22 are provided in the head body 18 corresponding to the second region 26-2 at predetermined intervals in the X1, X2 direction and the Y1, Y2 direction. The upper ends of the plurality of second flocking holes 22 are exposed from the flocking surface 26.
  • the plurality of second flocking holes 21 are holes for flocking a second hair bundle 32 (described later) used when brushing the tooth surface.
  • FIG. 4 as an example, the case where six second flock holes 22 are provided for one second region 26-2 is illustrated, but it is arranged in one second region 26-2.
  • the number of the second flock holes 22 to be used may be two or more, and is not limited to the configuration shown in FIG.
  • the plurality of third flock holes 23 are provided in the head body 18 corresponding to the third regions 28 and 29 at a predetermined interval.
  • the plurality of third flocking holes 23 are generally arranged in the Y1 and Y2 directions.
  • the upper ends of the plurality of third flocking holes 23 are exposed from the flocking surface 26.
  • the plurality of third flocking holes 23 are holes for flocking a third hair bundle 33 (described later) used when the tooth neck is polished.
  • FIG. 4 as an example, the case where three third flock holes 23 are provided for the third regions 28 and 29, respectively, but the third regions 28 and 29 are arranged in the third region 28 and 29.
  • the number of the flock holes 23 may be two or more, and is not limited to the configuration shown in FIG.
  • the plurality of fourth flock holes 24 are provided at predetermined intervals in the X1 and X2 directions in the head portion main body 18 corresponding to the fourth region 26-4. The upper ends of the plurality of fourth flocking holes 24 are exposed from the flocking surface 26.
  • the plurality of fourth flocking holes 24 are holes for flocking a fourth hair bundle 34, which will be described later, used when brushing the teeth.
  • FIG. 4 as an example, the case where five fourth flock holes 24 are provided in the fourth region 26-4 is illustrated, but the fourth region 26-4 disposed in the fourth region 26-4 is illustrated.
  • the number of the flock holes 24 is not limited to the configuration shown in FIG.
  • the inner diameters of the first and second flocking holes 21 and 22 are preferably larger than the inner diameters of the third and fourth flocking holes 23 and 24. This makes it possible to increase the outer diameter of the first hair bundle 31 used when brushing the back teeth and the outer diameter of the second hair bundle 32 used when brushing the tooth surface. The cleaning power of the tooth surface can be improved.
  • the inner diameters of the first and second flocking holes 21 and 22 can be set as appropriate within a range of 1.8 to 3.0 mm, for example.
  • the inner diameters of the third and fourth flocking holes 23 and 24 can be set as appropriate within a range of 1.0 to 1.6 mm, for example.
  • the area of the first region 26-1 where the plurality of first flocking holes 21 are arranged is larger than the total area of the two second regions 26-2 where the plurality of second flocking holes 22 are arranged.
  • the fourth region 26-4 is smaller and larger than the total area of the third regions 28 and 29 where the plurality of third flocking holes 23 are arranged, and the fourth region 26-4 where the plurality of fourth flocking holes 24 are arranged.
  • the area may be smaller than the total area of the third regions 28 and 29. In order to satisfy such conditions, the cleaning ability of the first to fourth hair bundles 31 to 34 to be implanted in the first to fourth regions 26-1 to 26-4 can be maximized. .
  • the neck portion 13 has one end integrated with the head portion 11 and the other end integrated with the distal end portion of the handle portion 14.
  • the neck portion 13 is a member that extends in the Y1 and Y2 directions while being curved toward the brush portion 16 side.
  • the width of the neck portion 13 is configured to be narrower than the width of the head portion 11 and the handle portion 14 in the X1 and X2 directions.
  • the neck portion 13 is a portion for improving the operability of the toothbrush 10 in the oral cavity.
  • the neck part 13 can be comprised with the hard resin mentioned above applicable to the material of the head part main body 18, for example. Moreover, the neck part 13 is good also as a structure which comprises the part used as a base with the said hard resin, and coat
  • the length of the neck portion 13 (the length in the Y1, Y2 direction) can be selected as appropriate, and can be selected as appropriate within a range of 20 mm or more and 60 mm or less, for example.
  • the shape and size of the neck portion 13 may be any shape and size applicable to the toothbrush 10 and are not particularly limited.
  • the handle portion 14 is a portion that the user grips with his / her hand when brushing teeth.
  • the handle portion 14 extends in the Y1 and Y2 directions.
  • the handle portion 14 has a partially recessed shape so that it can be easily grasped by hand.
  • the handle part 14 can be comprised with the hard resin mentioned above applicable to the material of the head part main body 18, for example.
  • steering-wheel part 14 is good also as a structure which comprises the part used as a base with the said hard resin, and coat
  • the length of the handle portion 14 (the length in the Y1, Y2 direction) can be selected as appropriate.
  • the neck portion 13 is in the range of 20 mm to 60 mm
  • the total length of the handle portion 14 can be set to be 40 mm or more and 80 mm or less.
  • steering-wheel part 14 should just be a shape and magnitude
  • FIG. 5 is an enlarged view of a portion surrounded by a region B shown in FIG. 5, the same components as those shown in FIGS. 1 to 4 are denoted by the same reference numerals.
  • the brush portion 16 is composed of a plurality of first to fourth hair bundles 31 to 34.
  • bristle bundle 31 is comprised by the some hair, and is a hair
  • aligning the hair lengths of the hair bundles means aligning the hair lengths of the plurality of hairs constituting the hair bundle by visual observation. That is, “aligning the hair lengths of the hair bundles” includes not only the hair lengths of the hairs constituting the hair bundles being completely the same, but also those having slightly different hair lengths between the hair bundles.
  • the error of the hair length between the plurality of hairs constituting the hair bundle having the same hair length is preferably ⁇ 10% or less, more preferably ⁇ 5% or less.
  • the first hair bundle 31 is implanted in the first flocking hole 21.
  • the first hair bundle 31 is a hair bundle having a larger outer diameter than the third and fourth hair bundles 33 and 34.
  • the hair constituting the first hair bundle 31 for example, tapered hair which is a hair whose diameter is gradually reduced toward the hair tip and whose tip is sharpened, gradually reduced in diameter toward the hair tip, and It is possible to use semi-taper hair, which is a hair having a tip diameter larger than that of the taper hair, round hair having substantially the same outer diameter except for the rounded portion of the hair tip.
  • the first hair bundle 31 may be composed only of tapered hair, may be composed only of semi-tapered hair, may be composed only of straight hair, tapered hair, straight hair, Of the semi-tapered hair, two or more types may be combined, but it is preferable that the semi-tapered hair is composed of only the tapered hair.
  • the tapered hair for example, a hair having an outer diameter of 10 ⁇ m or more and 30 ⁇ m or less at a position moved by 0.1 mm from the distal end to the proximal end side may be used.
  • standard can be suitably set according to the objective,
  • the inside of the range of 10 mm or more and 13 mm or less is preferable.
  • bristle bundle 31 has the preferable range of 0.15 mm or more and 0.25 mm or less, for example.
  • Examples of the hair material constituting the first hair bundle 31 include polyamides such as 6-12 nylon and 6-10 nylon, PET, polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT), polyethylene naphthalate. Resin materials such as polyesters such as phthalate (PEN) and polybutylene naphthalate (PBN), polyolefins such as PP, olefin elastomers, and styrene elastomers can be used.
  • polyamides such as 6-12 nylon and 6-10 nylon
  • PET polybutylene terephthalate
  • PBT polytrimethylene terephthalate
  • PTT polyethylene naphthalate
  • Resin materials such as polyesters such as phthalate (PEN) and polybutylene naphthalate (PBN), polyolefins such as PP, olefin elastomers, and styrene elastomers can be used.
  • the cross-sectional shape of the hair constituting the first hair bundle 31 (specifically, the shape when the hair is cut in a virtual plane passing through the X1, X2 direction and the Y1, Y2 direction) is, for example, A circular shape is preferable, but the cross-sectional shape is not limited to a circular shape.
  • the cross-sectional shape of the hair constituting the first hair bundle 31 is, for example, an ellipse, a polygon (for example, a triangle, a quadrangle, a pentagon, a hexagon, etc.), an irregular shape (for example, a star shape, a three-leaf clover shape, It may be a four-leaf clover shape or the like.
  • the second hair bundle 32 is implanted in the second flocking hole 22.
  • bristle bundle 32 is comprised by the some hair, and is the hair
  • the height of the second hair bundle 32 with respect to the flocked surface 26 is the height of the first hair bundle 31, the third hair bundle 33, and the fourth hair bundle 34 with respect to the flocked surface 26. It is comprised so that it may become lower than this. That is, the second hair bundle 32 is the lowest hair bundle.
  • the outer diameter of the second hair bundle 32 is configured to be thicker than the outer diameters of the third and fourth hair bundles 33 and 34.
  • the second hair bundle 32 may be composed only of tapered hair, may be composed only of semi-tapered hair, may be composed only of straight hair, tapered hair, straight hair, Of the semi-tapered hair, two or more types may be combined, but it is preferable that the semi-tapered hair be composed of only semi-tapered hair.
  • the cleaning power of a tooth surface can be improved by comprising the 2nd hair
  • the semi-tapered hair constituting the second hair bundle 32 for example, one having a diameter of 30 ⁇ m or more and 90 ⁇ m or less at a position moved by 0.1 mm from the distal end to the proximal end side may be used.
  • standard can be set suitably according to the objective, For example, the inside of the range of 8 mm or more and 11 mm or less is preferable.
  • bristle bundle 32 has the preferable range of 0.12 mm or more and 0.20 mm or less, for example.
  • the hair material and the cross-sectional shape of the hair constituting the second hair bundle 32 can be appropriately selected. For example, the hair material and the cross-sectional shape constituting the first hair bundle 31 are the same. Can be used.
  • the third hair bundle 33 is implanted in the third flock hole 23.
  • bristle bundle 33 is comprised by the some hair, and is the hair
  • the height of the third hair bundle 33 when the flocked surface 26 is used as a reference is configured to be lower than the height of the first hair bundle 31 and higher than the height of the second hair bundle 32. Yes.
  • the outer diameter of the third hair bundle 33 is configured to be smaller than the outer diameters of the first and second hair bundles 31 and 32.
  • the third hair bundle 33 is inserted between the teeth and gums (tooth neck). Since it becomes easy to insert the hair bundle 33, the cleaning power for the tooth neck can be improved.
  • the third hair bundle 33 may be composed only of tapered hair, may be composed only of semi-tapered hair, may be composed only of straight hair, tapered hair, straight hair, Of the semi-tapered hair, two or more types may be combined, but it is preferable that the semi-tapered hair is composed of only the tapered hair.
  • the insertion property of the third hair bundle 33 between the teeth and the gums (tooth neck portion) is further improved.
  • the cleaning power of the part can be further improved.
  • the tapered hair for example, a hair having an outer diameter of 10 ⁇ m or more and 30 ⁇ m or less at a position moved by 0.1 mm from the distal end to the proximal end side may be used.
  • standard can be set suitably according to the objective, For example, the inside of the range of 9 mm or more and 12 mm or less is preferable. Moreover, the thickness of the base part of the hair which comprises the 3rd hair
  • the fourth hair bundle 34 is implanted in the fourth flocking hole 24.
  • bristle bundle 34 is comprised by the some hair, and is a hair
  • the height of the fourth hair bundle 34 when the flocked surface 26 is used as a reference is configured to be equal to or higher than the height of the first hair bundle 31.
  • the outer diameter of the fourth hair bundle 34 is configured to be smaller than the outer diameters of the first and second hair bundles 31 and 32. In this way, the outer diameter of the fourth hair bundle 34 is made smaller than that of the first and second hair bundles 31 and 32, so that the fourth hair bundle 34 is provided between the teeth (the gap between the teeth). Since it becomes easy to insert the hair
  • the fourth hair bundle 34 may be composed only of tapered hair, may be composed only of semi-tapered hair, may be composed only of straight hair, tapered hair, straight hair, Of the semi-tapered hair, two or more types may be combined, but it is preferable that the semi-tapered hair is composed of only the tapered hair.
  • bristle bundle 34 is comprised only with a taper hair, since the insertability between teeth further improves, the cleaning power between teeth can further be improved.
  • the tapered hair for example, a hair having an outer diameter of 10 ⁇ m or more and 30 ⁇ m or less at a position moved by 0.1 mm from the distal end to the proximal end side may be used.
  • standard can be set suitably according to the objective, For example, the inside of the range of 10 mm or more and 13 mm or less is preferable. Moreover, the thickness of the base part of the hair which comprises the 4th hair
  • the difference between the height of the first hair bundle 31 and the height of the fourth hair bundle 34 can be set to, for example, 0 mm or more and 1 mm or less.
  • the toothbrush 10 of the first embodiment includes a first hair bundle 31 planted in the plurality of first planting holes 21 provided in the first region 26-1, and a second region 26-2.
  • a plurality of third plantings provided in the second hair bundle 32 having the lowest height from the planted surface 26 and the third regions 28 and 29 are planted in the plurality of second planting holes 22 provided.
  • the inner diameters of the first and second flocking holes 21 and 22 are larger than the inner diameters of the third and fourth flocking holes 33 and 34.
  • the single toothbrush 10 can sufficiently ensure the cleaning power of each part of the interdental region, the neck portion, the tooth surface, and the back teeth.
  • FIG. 6 is an enlarged front view of the main parts (head part and brush part) of the toothbrush according to the second embodiment of the present invention.
  • the same components as those shown in FIGS. 1 to 5 are denoted by the same reference numerals.
  • the toothbrush 40 of the second embodiment has a head portion 41 and a brush portion 42 instead of the head portion 11 and the brush portion 16 constituting the toothbrush 10 of the first embodiment. Except for this, the configuration is the same as that of the toothbrush 10.
  • the head portion 41 has a head portion main body 45 and a plurality of first to fourth flocking holes 21 to 24.
  • the rear end portion of the head portion main body 45 is configured integrally with one end of the neck portion 13.
  • the head portion main body 45 has a flocked surface 47 on the front side thereof.
  • the flocked surface 47 includes a pair of third regions 26-3A and 26-3B (two pairs of third regions) that constitute the flocked surface 26 described in the first embodiment, and a fourth region 26.
  • the configuration is the same as that of the flocked surface 26 except that it has a pair of third region 51 and fourth region 52 instead of -4.
  • the pair of third regions 51 includes two third regions 55 and 56.
  • the third regions 55 and 56 are provided outside a part of the two second regions 26-2 and outside the fourth region 52.
  • the third regions 55 and 56 are arranged so as to sandwich a part of the two second regions 26-2 and the fourth region 52 from the X1 and X2 directions.
  • the third regions 55 and 56 are regions partitioned by surrounding the plurality of third flocking holes 23.
  • the third regions 55 and 56 are provided with more third flock holes 23 than the third regions 28 and 29 described in the first embodiment.
  • the third regions 55 and 56 are arranged to extend in the Y1 and Y2 directions while being bent.
  • the third regions 55 and 56 are disposed so as to face each other in the Y1 and Y2 directions via a part of the two second regions 26-2 and the fourth region 52.
  • the fourth area 52 is an area defined by the third areas 55 and 56 and the two second areas 26-2.
  • the fourth region 52 is configured to have a shorter length in the X1 and X2 directions and a wider width in the Y1 and Y2 directions than the fourth region 26-4 described in the first embodiment. Yes.
  • there are a plurality of flocking hole groups each composed of a plurality of fourth flocking holes 24 arranged in a row in the X1 and X2 directions (in the case of FIG. 6, as an example, 2 One) has been placed.
  • the brush portion 42 is composed of a plurality of first to fourth hair bundles 31 to 34, and the first embodiment is different except that the number and arrangement of the third and fourth hair bundles 33 and 34 are different. It is comprised similarly to the brush part 16 demonstrated by the form.
  • the toothbrush 40 of the second embodiment configured as described above can obtain the same effects as the toothbrush 10 of the first embodiment.
  • toothbrushes C1 to C6 of Examples 1 to 6 and toothbrushes D1 to D3 of Comparative Examples 1 to 3 were produced as the toothbrushes shown in FIGS.
  • taper hair made of PBT (polybutylene terephthalate) resin was used as the taper hair.
  • spiral taper hair a spiral taper hair made of PBT resin was used as the spiral taper hair.
  • a semi-tapered hair made of PBT resin was used as the semi-tapered hair.
  • nylon round hair was used.
  • the height of the fourth hair bundle was the same as that of the first hair bundle.
  • the height of the fourth hair bundle was 1 mm higher than the height of the first hair bundle.
  • the height of the fourth hair bundle was 1 mm lower than the height of the first hair bundle.
  • the inner diameters of the third and fourth flocked holes were made smaller than the inner diameters of the first and second flocked holes.
  • the inner diameters of the third and fourth flock holes were the same as the inner diameters of the first and second flock holes.
  • Plaque removal rate (%) ((Plate occupation area before back model cleaning ability test-Plaque occupation area after back tooth model cleaning ability test) / (Plate occupation area before back model cleaning ability test) )) X 100 ...
  • the evaluation is ⁇ when the plaque removal rate is 70% or more, ⁇ when the plaque removal rate is 50% or more and less than 70%, and when the plaque removal rate is 30% or more and less than 50%. It was set as ⁇ , and when the plaque removal rate was less than 30%, it was set as x. The results are shown in Table 1.
  • the evaluation is ⁇ when the plaque removal rate is 70% or more, ⁇ when the plaque removal rate is 50% or more and less than 70%, and when the plaque removal rate is 30% or more and less than 50%. It was set as ⁇ , and when the plaque removal rate was less than 30%, it was set as x. The results are shown in Table 1.
  • the height of the hair constituting the fourth hair bundle (the height of the fourth hair bundle) is the height of the hair constituting the first hair bundle. It was confirmed that when the height was lower than (the height of the first hair bundle), the cleaning power between the teeth deteriorated.
  • the height of the hair constituting the fourth hair bundle is set to It was confirmed that it was necessary to make the hair height higher than that of the hair constituting one hair bundle.
  • the first and second flock holes It was confirmed that when the inner diameter and the inner diameter of the third and fourth flock holes were made the same size, the cleaning power of the tooth neck and the tooth surface decreased. From the results of Examples 1 and 2 and Comparative Examples 2 and 3, the inner diameters of the third and fourth flock holes are the first and second in order to sufficiently secure the cleaning power of the tooth neck and the tooth surface. It was confirmed that it was necessary to make it smaller than the inner diameter of the flocking hole.
  • the height of the hair constituting the fourth hair bundle It is necessary to make the inner diameter of the third and fourth flock holes smaller than the inner diameter of the first and second flock holes while making the height of the hairs constituting the first hair bundle higher than It could be confirmed.
  • the present invention can be applied to a toothbrush.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Brushes (AREA)

Abstract

La présente invention a pour objet de fournir au moyen d'une brosse à dents unique, une brosse à dents permettant d'assurer une puissance de nettoyage suffisante pour les endroits suivants: les espaces interdentaires; le collet; les surfaces des dents; et les molaires. La brosse à dents est dotée des éléments suivants: des premiers faisceaux de poils (31) qui sont implantés dans une pluralité de premiers trous d'implantation de poils (21) disposés dans une première région (26-1); des deuxièmes faisceaux de poils (32), la hauteur de chacun d'entre eux étant la plus basse parmi tous les faisceaux de poils, et qui sont implantés dans une pluralité de deuxièmes trous d'implantation de poils (22) disposés dans des deuxièmes régions (26-2); des troisièmes faisceaux de poils (33), la hauteur de chacun d'entre eux étant inférieure à celle des premiers faisceaux de poils (31) et supérieure à celle des deuxièmes faisceaux de poils (32), et qui sont implantés dans une pluralité de troisièmes trous d'implantation de poils (23) disposés dans des troisièmes régions (28, 29); et des quatrièmes faisceaux de poils (34), la hauteur de chacun d'entre eux, à partir d'une surface d'implantation de poils (26), étant au moins égale à la hauteur des premiers faisceaux de poils (31), et qui sont implantés dans une pluralité de quatrièmes trous d'implantation de poils (24) disposés dans une quatrième région (26-4). Le diamètre interne des premiers et deuxièmes trous d'implantation de poils (21, 22) est supérieur au diamètre interne des troisièmes et quatrièmes trous d'implantation de poils (23, 24).
PCT/JP2016/052747 2015-01-29 2016-01-29 Brosse à dents WO2016121961A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020167036093A KR102622532B1 (ko) 2015-01-29 2016-01-29 칫솔
CN201680003305.5A CN107205541A (zh) 2015-01-29 2016-01-29 牙刷
SG11201705074UA SG11201705074UA (en) 2015-01-29 2016-01-29 Toothbrush
JP2016572202A JP6598383B2 (ja) 2015-01-29 2016-01-29 歯ブラシ
MYPI2017702471A MY191767A (en) 2015-01-29 2016-01-29 Toothbrush

Applications Claiming Priority (2)

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JP2015015466 2015-01-29
JP2015-015466 2015-01-29

Publications (1)

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WO2016121961A1 true WO2016121961A1 (fr) 2016-08-04

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KR (1) KR102622532B1 (fr)
CN (1) CN107205541A (fr)
MY (1) MY191767A (fr)
SG (1) SG11201705074UA (fr)
WO (1) WO2016121961A1 (fr)

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Publication number Priority date Publication date Assignee Title
KR20240072985A (ko) 2021-10-08 2024-05-24 라이온 가부시키가이샤 칫솔

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JPH08154740A (ja) * 1994-12-05 1996-06-18 Lion Corp 歯ブラシ
JPH08164024A (ja) * 1994-12-12 1996-06-25 Lion Corp 歯ブラシ
JPH1042957A (ja) * 1996-08-06 1998-02-17 Lion Corp 歯ブラシ
JP2003009948A (ja) * 2001-05-23 2003-01-14 Mcneil Ppc Inc 個々に植設されたブリッスルを備える歯ブラシ
JP2006181190A (ja) * 2004-12-28 2006-07-13 Lion Corp 歯ブラシ
JP2008068109A (ja) * 1997-11-12 2008-03-27 Gillette Canada Co 歯ブラシ

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CA2392591A1 (fr) * 1999-12-15 2001-06-21 Mcneil-Ppc, Inc. Brosse a dents a poils incorpores individuellement
JP4076412B2 (ja) 2002-09-17 2008-04-16 花王株式会社 歯ブラシ
JP5297722B2 (ja) * 2008-08-28 2013-09-25 ライオン株式会社 歯ブラシ用毛材の製造方法、歯ブラシ用毛材、歯ブラシ
CA2784176C (fr) * 2009-12-10 2016-02-02 Braun Gmbh Configuration de tete de brosse a dents
JP5922439B2 (ja) 2011-02-28 2016-05-24 花王株式会社 歯ブラシ
JPWO2014162944A1 (ja) * 2013-04-01 2017-02-16 ライオン株式会社 歯ブラシ

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JPH08154740A (ja) * 1994-12-05 1996-06-18 Lion Corp 歯ブラシ
JPH08164024A (ja) * 1994-12-12 1996-06-25 Lion Corp 歯ブラシ
JPH1042957A (ja) * 1996-08-06 1998-02-17 Lion Corp 歯ブラシ
JP2008068109A (ja) * 1997-11-12 2008-03-27 Gillette Canada Co 歯ブラシ
JP2003009948A (ja) * 2001-05-23 2003-01-14 Mcneil Ppc Inc 個々に植設されたブリッスルを備える歯ブラシ
JP2006181190A (ja) * 2004-12-28 2006-07-13 Lion Corp 歯ブラシ

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240072985A (ko) 2021-10-08 2024-05-24 라이온 가부시키가이샤 칫솔

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CN107205541A (zh) 2017-09-26
KR102622532B1 (ko) 2024-01-09
JPWO2016121961A1 (ja) 2017-11-09
JP6598383B2 (ja) 2019-10-30
KR20170113002A (ko) 2017-10-12
SG11201705074UA (en) 2017-07-28
MY191767A (en) 2022-07-14

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