JP4854280B2 - toothbrush - Google Patents

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JP4854280B2
JP4854280B2 JP2005343247A JP2005343247A JP4854280B2 JP 4854280 B2 JP4854280 B2 JP 4854280B2 JP 2005343247 A JP2005343247 A JP 2005343247A JP 2005343247 A JP2005343247 A JP 2005343247A JP 4854280 B2 JP4854280 B2 JP 4854280B2
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flocked
toothbrush
longitudinal direction
flock
holes
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JP2007143908A (en
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明 鈴木
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Kao Corp
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Description

本発明は、歯ブラシに関し、特にブリッスルを束ねてなるタフトが植毛台の複数の植毛孔に各々植設されている歯ブラシに関する。   The present invention relates to a toothbrush, and more particularly to a toothbrush in which tufts formed by bundling bristles are respectively implanted in a plurality of flock holes of a flocking table.

歯ブラシは、複数本のブリッスルを束ねてなるタフトを、植毛台に形成した複数の植毛孔に例えば平線を打ち込んだり熱で融着させる方法等によって植設固定することにより、複数のタフトからなるブラシ部を形成して得られるものである。また、歯ブラシは、歯面部、歯間部、歯頸部等の歯の部位や、前歯、奥歯等の歯の種類に応じた適切な刷掃を効率良く行うことができるようにすると共に、使用感を向上させるために、タフトの配置やブラシ部の全体の形状等に種々の工夫がなされている。   The toothbrush is composed of a plurality of tufts by, for example, implanting and fixing a tuft formed by bundling a plurality of bristles into a plurality of flock holes formed on the flocking table by, for example, driving a flat wire or fusing with heat. It is obtained by forming a brush part. In addition, the toothbrush can efficiently perform appropriate brushing according to the tooth part such as the tooth surface part, the interdental part, the tooth neck part, and the tooth type such as the front tooth and the back tooth. In order to improve the feeling, various ideas have been made on the arrangement of tufts, the overall shape of the brush portion, and the like.

例えば、植毛穴の短手方向の間隔を通常より狭くし、隣合う毛束の刷毛先端が連続一体的に連なるように毛束を植毛することによって、歯間部や歯ぐき部の狭いすき間の清掃効果を向上させた歯ブラシが開示されている(例えば、特許文献1参照)。
特開平11−113634号公報
For example, by narrowing the gap in the short direction of the flocked holes than usual and implanting the hair bundle so that the brush tips of adjacent hair bundles are connected continuously and continuously, cleaning the narrow gaps between the teeth and gums A toothbrush with an improved effect is disclosed (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 11-11634

しかしながら、上記従来の歯ブラシは、植毛穴の短手方向の間隔を通常より狭くしたことにより短手方向の植毛密度が過度に高くなり、ブリッスル同士が干渉し合い撓みづらいため磨いたときの感触が硬くなる。また刷毛先端が短手方向に連続一体的に連なる毛束が植毛台の長手方向に相当の間隔をおいて複数配置されていることから、植毛部全体から見ると植毛密度の高い部分と低い部分とが混在して、ブリッスルの植毛密度に部分的な偏りを生じることになる。   However, the above-mentioned conventional toothbrushes have a narrower spacing in the short direction of the flock holes than usual, so that the flocking density in the short direction becomes excessively high, and the bristles interfere with each other and are difficult to bend. It becomes hard. In addition, since a plurality of hair bundles in which the brush tips are continuously and continuously connected in the short direction are arranged at considerable intervals in the longitudinal direction of the flocking table, a portion where the flocking density is high and a portion where the flocking density is low Will cause a partial bias in bristle flocking density.

このため、上記従来の歯ブラシによれば、植毛密度の高い部分による歯面の清掃効果は比較的高いものの、ブリッスルの植毛密度の部分的な偏りによって、歯の隙間の清掃効果は十分とはいえなかった。   For this reason, according to the conventional toothbrush, although the effect of cleaning the tooth surface due to the portion having a high flocking density is relatively high, the effect of cleaning the tooth gap is not sufficient due to the partial deviation of the flocking density of the bristle. There wasn't.

本発明は、ブラシ部の全体に亘って偏りなくブリッスルの植毛密度を高くすることで歯ぐきへの負担等を軽減し、かつ、優れた歯垢の掻き取り効果や歯面やすき間の清掃効果、刷掃感等を得ることのできる歯ブラシを提供することを目的とする。   The present invention reduces the burden on the gums by increasing the flocking density of the bristle without unevenness over the entire brush part, and has an excellent plaque scraping effect and tooth surface clearance cleaning effect, An object of the present invention is to provide a toothbrush capable of obtaining a wiping feeling.

本発明は、ブリッスルを束ねてなるタフトが植毛台の複数の植毛孔に各々植設されている歯ブラシであって、前記植毛台の先端から長手方向に沿って少なくとも植毛台の長さの30〜80%の範囲にある植毛部について、
(イ)前記植毛孔は、略正方形、略菱形又は略正六角形の平面形状を有し、
(ロ)前記植毛部の最外周に配置される前記植毛孔の外縁を結んだ環状線によって囲まれる領域を前記植毛部の植毛領域として、該植毛領域の面積に対する該植毛領域内の前記植毛孔の面積の総和の割合が40%以上であり、
(ハ)隣接する前記植毛孔の縁部間には前記植毛台の長手方向と垂直な短手方向に1mm以上の間隔が保持されており、
(ニ)前記植毛台の長手方向に沿って形成される前記植毛孔の列の外縁を結んだ環状線と前記列と隣接した植毛孔の列の外縁を結んだ環状線の最短距離は1mm以下であり、
(ホ)且つ前記植毛台の長手方向と垂直な短手方向の前記植毛領域の最大幅に対する、前記長手方向の任意の位置における短手方向の1又は2以上の前記植毛孔の切欠き幅の占有率が70%以下となっている歯ブラシを提供することにより、上記目的を達成したものである。
The present invention is a toothbrush in which tufts formed by bundling bristles are respectively planted in a plurality of flock holes of a flocking table, and at least 30 to the length of the flocking table along the longitudinal direction from the tip of the flocking table. About flocked part in the range of 80%
(A) The flock hole has a planar shape of a substantially square, a substantially rhombus or a substantially regular hexagon,
(B) The flocked hole in the flocked region with respect to the area of the flocked region with a region surrounded by an annular line connecting the outer edges of the flocked hole arranged on the outermost periphery of the flocked portion as the flocked region of the flocked portion The ratio of the sum of the areas is 40% or more,
(C) A gap of 1 mm or more is maintained between the edges of the adjacent flock holes in the short direction perpendicular to the longitudinal direction of the flocking table,
(D) The shortest distance between the annular line connecting the outer edge of the row of flock holes formed along the longitudinal direction of the flocking table and the annular line connecting the outer edge of the row of flock holes adjacent to the row is 1 mm or less. And
(E) Notch width of one or more flocked holes in the short direction at an arbitrary position in the longitudinal direction with respect to the maximum width of the flocked region in the short direction perpendicular to the longitudinal direction of the flocking table The above object is achieved by providing a toothbrush having an occupation ratio of 70% or less.

本発明の歯ブラシによれば、ブラシ部の全体に亘って偏りなくブリッスルの植毛密度を高くすることで歯ぐきへの負担等を軽減し、かつ、優れた歯垢の欠き取り効果や歯面やすき間の清掃効果、刷掃感等を得ることができる。   According to the toothbrush of the present invention, it is possible to reduce the burden on the gums by increasing the flocking density of the bristle without unevenness over the entire brush part, and also has an excellent plaque removal effect and tooth surface clearance. The cleaning effect, brushing feeling and the like can be obtained.

図1及び図2(a),(b)に示す本発明の好ましい第1実施形態に係る歯ブラシ10は、把持部(図示せず)と植毛台11とこれらを連結する首部12とからなる歯ブラシ本体17の植毛台11に形成した複数の植毛孔13に、複数本のブリッスル14を束ねてなる毛束(タフト)15を各々植毛(植設)してブラシ部16を形成することにより構成される。   A toothbrush 10 according to a first preferred embodiment of the present invention shown in FIG. 1 and FIGS. 2 (a) and 2 (b) is a toothbrush comprising a gripping part (not shown), a flocking table 11, and a neck part 12 connecting them. A plurality of flock holes 13 formed on the flock base 11 of the main body 17 are respectively planted (planted) with a hair bundle (tuft) 15 formed by bundling a plurality of bristles 14 to form a brush portion 16. The

すなわち、本第1実施形態の歯ブラシ10は、ブリッスル14を束ねてなるタフト15が歯ブラシ本体17の植毛台11の複数の植毛孔13に各々植設されている歯ブラシであって、前記植毛台11の先端から長手方向Xに沿って少なくとも植毛台11の長さNの30〜80%の範囲にある植毛部Aについて、
(イ)前記植毛孔13は、略正方形、略菱形又は略正六角形の平面形状を有し、
(ロ)前記植毛部Aの最外周に配置される前記植毛孔13の外縁を結んだ環状線18A(図2(a)参照)によって囲まれる領域を前記植毛部Aの植毛領域19Aとして、該植毛領域19Aの面積に対する前記植毛孔13の面積の総和の割合が40%以上であり、
(ハ)隣接する前記植毛孔13の縁部間には前記植毛台11の長手方向Xと垂直な短手方向Yに1mm以上の間隔sが保持されており、
(ニ)前記植毛台11の長手方向Xに沿って形成される前記植毛孔13の列Lの外縁を結んだ環状線18Lと前記列Lと隣接した別の植毛孔13の列Lの外縁を結んだ環状線18Lの最短距離dは1mm以下であり(図2(b)参照)、
(ホ)且つ前記植毛台11の長手方向Xと垂直な短手方向Yの前記植毛領域19Aの最大幅W(図2(a)参照)に対する、前記長手方向Xの任意の位置における短手方向Yの1又は2以上の前記植毛孔13の切欠き幅wの占有率が70%以下となっている。
That is, the toothbrush 10 of the first embodiment is a toothbrush in which tufts 15 formed by bundling bristles 14 are respectively implanted in a plurality of flock holes 13 of a flock base 11 of a toothbrush body 17, and the flock base 11 About the flocked part A in the range of 30 to 80% of the length N of the flocked table 11 along the longitudinal direction X from the tip of
(A) The flock hole 13 has a planar shape of a substantially square, a substantially rhombus or a substantially regular hexagon,
(B) A region surrounded by an annular line 18A (see FIG. 2A) connecting the outer edges of the flocked hole 13 arranged on the outermost periphery of the flocked portion A is defined as a flocked region 19A of the flocked portion A, The ratio of the total area of the flock holes 13 to the area of the flocked region 19A is 40% or more,
(C) A gap s of 1 mm or more is held between the edges of the adjacent flock holes 13 in the short direction Y perpendicular to the longitudinal direction X of the flocking table 11.
(D) An annular line 18L formed along the longitudinal direction X of the flocking table 11 and connecting the outer edge of the row L of the flocked hole 13 and the outer edge of the row L of another flocked hole 13 adjacent to the row L The shortest distance d of the connected annular line 18L is 1 mm or less (see FIG. 2B),
(E) The short direction at an arbitrary position in the longitudinal direction X with respect to the maximum width W (see FIG. 2A) of the flocked region 19A in the short direction Y perpendicular to the longitudinal direction X of the flocking table 11. The occupation ratio of the notch width w of one or two or more flock holes 13 of Y is 70% or less.

本第1実施形態では、歯ブラシ本体17は、例えばポリプロピレン、ABS樹脂等の合成樹脂からなり、その植毛台11の平坦な表面には、各タフト15の配設位置に対応させて、後述する所定の配設ピッチで略正方形の平面形状を備える多数(複数)の植毛孔13が、例えば2〜5mmの深さで開口形成されている。各植毛孔13には、タフト15が、好ましくは平線30を打ち込む方法によって、植毛台11の表面からの高さである毛丈が好ましくは5〜15mmとなるように各々植設されて、略平坦な先端ブラシ面を形成するようになっている。   In the first embodiment, the toothbrush body 17 is made of a synthetic resin such as polypropylene or ABS resin, and the flat surface of the flocking table 11 corresponds to the arrangement positions of the tufts 15 and is described later. A large number (a plurality) of flock holes 13 having a substantially square planar shape with an arrangement pitch of, for example, are formed with a depth of 2 to 5 mm. In each flock hole 13, tufts 15 are preferably implanted by a method of driving a flat wire 30 so that the hair height which is the height from the surface of the flocking table 11 is preferably 5 to 15 mm, A substantially flat tip brush surface is formed.

各タフト15を構成するブリッスル14は、例えばナイロン等の合成樹脂や、豚毛などの天然素材からなる、例えば6〜10mil(0.15〜0.25mm)の太さを有するフィラメント材であって、これを例えば十数本〜数十本束ねることによってタフト15が形成される。本第1実施形態では、ブリッスル14の先端部分は、好ましくはテーパー加工を施すことによって、テーパー形状となっている。   The bristle 14 constituting each tuft 15 is a filament material having a thickness of, for example, 6 to 10 mil (0.15 to 0.25 mm) made of a synthetic material such as nylon or a natural material such as pig hair. The tuft 15 is formed by bundling, for example, dozens to dozens. In the first embodiment, the tip portion of the bristle 14 has a tapered shape, preferably by performing a taper process.

本第1実施形態では、各タフト15が植設される植毛孔13は、各々、例えば縦横1〜3.5mm、好ましくは縦横1.5〜3mm、さらに好ましくは縦横2〜2.5mmの大きさの、角部が円弧状に面取りされた略正方形の形状を備えており、その一方の対角線が植毛台11の長手方向Xに沿うように配置され、当該長手方向Xに連設して3列、合計16箇所に形成されている。また各列の植毛孔13は、隣接する列の隣り合う植毛孔13間に位置するように各々配置されて、千鳥状に配設されている。   In the first embodiment, the flock holes 13 in which the tufts 15 are implanted each have a size of, for example, 1 to 3.5 mm in length and width, preferably 1.5 to 3 mm in length and width, and more preferably 2 to 2.5 mm in length and width. The corner portion has a substantially square shape chamfered in an arc shape, and one of the diagonal lines is arranged along the longitudinal direction X of the flocking table 11, and is connected to the longitudinal direction X so as to be 3 A total of 16 columns are formed. Moreover, the flock holes 13 in each row are arranged so as to be positioned between adjacent flock holes 13 in adjacent rows, and are arranged in a staggered manner.

そして、本第1実施形態では、植毛台11の先端から長手方向Xに沿って植毛台11の長さN(先端から首部12の変極点までの長さ)の30〜80%の範囲にある、植毛台11の先端3箇所の植毛孔13を除いた残り13箇所の植毛孔13から構成される植毛部Aについて、当該植毛部Aの最外周に配置される植毛孔13の外縁を結んだ環状線18Aによって囲まれる植毛領域19Aの面積に対する前記植毛孔13の面積の総和の割合が40%以上となっており、好ましくは40〜60%、さらに好ましくは40〜55%となっている。植毛領域19Aの面積に対する植毛孔13の面積の総和の割合を40%以上とすることにより、優れた歯垢の掻き取り効果や歯面の清掃効果、刷掃感等が得られる。また60%以下とすることにより、さらにブリッスル14が自由に動ける空間ができ、優れたすき間の清掃効果が得られる点で有利である。   And in this 1st Embodiment, it exists in the range of 30 to 80% of the length N (length from a front-end | tip to the inflection point of the neck part 12) of the flocking base 11 along the longitudinal direction X from the front-end | tip of the flocking base 11. The flocked portion A composed of the remaining 13 flocked holes 13 excluding the flocked holes 13 at the tip 3 of the flocked table 11 is tied to the outer edge of the flocked hole 13 arranged on the outermost periphery of the flocked portion A. The ratio of the total area of the flock holes 13 to the area of the flocked region 19A surrounded by the annular line 18A is 40% or more, preferably 40 to 60%, and more preferably 40 to 55%. By setting the ratio of the total area of the flock holes 13 to the area of the flocked region 19A to be 40% or more, an excellent plaque scraping effect, tooth surface cleaning effect, brushing feeling, and the like can be obtained. Moreover, by setting it as 60% or less, the space which the bristle 14 can move freely further is made, and it is advantageous at the point from which the cleaning effect of the outstanding clearance gap is acquired.

また、本第1実施形態では、植毛部Aについて隣接する植毛孔13の縁部間には、どの位置においても短手方向Yに1mm以上の間隔sが保持されている。ここで、隣接する植毛孔13の縁部間の短手方向Yの間隔sは、長手方向Xの任意の位置において、これと垂直な短手方向Yに仮想の直線z−zを描いた際に、この直線z−zに沿った、隣接する植毛孔13の縁部間の長さである。隣接する植毛孔13の縁部間にどの位置においても短手方向Yに1mm以上の間隔sが保持されていることにより、短手方向Yの植毛孔13間にブリッスル14が動けるスペースを確保でき、刷掃時に隙間部分にブリッスル14が届き易くなる。   Moreover, in this 1st Embodiment, the space | interval s of 1 mm or more is hold | maintained in the transversal direction Y between the edge parts of the flock hole 13 adjacent about the flock part A at any position. Here, the interval s in the short direction Y between the edges of the adjacent flock holes 13 is drawn at an arbitrary position in the long direction X when a virtual straight line zz is drawn in the short direction Y perpendicular thereto. And the length between the edges of the adjacent flock holes 13 along the straight line zz. Since the space s of 1 mm or more is maintained in the short direction Y at any position between the edges of the adjacent flock holes 13, a space where the bristle 14 can move between the flock holes 13 in the short direction Y can be secured. The bristle 14 can easily reach the gap portion during the cleaning.

更に本第1実施形態では、植毛台11の長手方向Xに沿って形成される植毛孔13の列Lの外縁を結んだ環状線18Lと、当該列Lと隣接した別の植毛孔13の列Lの外縁を結んだ環状線18Lの最短距離dが1mm以下になっていることにより、磨き残しの発生を効果的に回避することができる。なお、環状線18Lと隣接する環状線18Lはその一部が重なり合っていてもよく、環状線18Lと隣接する環状線18Lの重なっている領域の短手方向Yの最短距離d(重なっている領域の最大幅)を負の値で表現した場合、最短距離dは−1.5〜1mmであってもよい。   Furthermore, in the first embodiment, an annular line 18L connecting the outer edges of the row L of the flock holes 13 formed along the longitudinal direction X of the flock base 11 and a row of another flock hole 13 adjacent to the row L. Since the shortest distance d of the annular line 18L connecting the outer edges of L is 1 mm or less, it is possible to effectively avoid occurrence of unpolished. The annular line 18L and the adjacent annular line 18L may partially overlap each other, and the shortest distance d in the short direction Y (the overlapping area) of the area where the annular line 18L and the adjacent annular line 18L overlap. In the case where the maximum width is expressed by a negative value, the shortest distance d may be -1.5 to 1 mm.

更にまた、本第1実施形態では、植毛台11の長手方向Xと垂直な短手方向Yの前記植毛領域19Aの最大幅Wに対する、前記長手方向Xの任意の位置における短手方向Yの1又は2以上の前記植毛孔13の切欠き幅wの占有率が70%以下となっている。ここで、短手方向Yの1又は2以上の植毛孔13の切欠き幅wは、長手方向Xの任意の位置において、短手方向Yに仮想の直線Z−Zを描いた際に、この直線Z−Zが植毛孔13と重なる部分の長さwである(直線Z−Zが複数の植毛孔13と重なる場合には、各重なる部分の長さwを加算した長さである)。また短手方向Yの植毛領域19Aの最大幅Wに対する短手方向Yの切欠き幅wの占有率は、当該最大幅Wに対する、短手方向Yに描いた仮想の直線Z−Zが1又は2以上の植毛孔13と重なる部分の長さwの割合である。   Furthermore, in the first embodiment, 1 in the short direction Y at an arbitrary position in the longitudinal direction X with respect to the maximum width W of the flocked region 19A in the short direction Y perpendicular to the longitudinal direction X of the flocking table 11. Or the occupation rate of the notch width w of the two or more flock holes 13 is 70% or less. Here, the notch width w of one or two or more flock holes 13 in the short direction Y is obtained when an imaginary straight line ZZ is drawn in the short direction Y at an arbitrary position in the long direction X. The straight line ZZ is the length w of the portion that overlaps the flocked hole 13 (when the straight line ZZ overlaps the plurality of flocked holes 13, it is the length obtained by adding the length w of each overlapping portion). The occupation ratio of the notch width w in the short direction Y with respect to the maximum width W of the flocked region 19A in the short direction Y is 1 or a virtual straight line ZZ drawn in the short direction Y with respect to the maximum width W is 1 or It is the ratio of the length w of the part which overlaps with the two or more flock holes 13.

短手方向Yの植毛領域19Aの最大幅Wに対する、長手方向Xの任意の位置における短手方向Yの1又は2以上の植毛孔13の切欠き幅wの占有率が70%以下となっていることにより、短手方向Yの植毛孔13間にブリッスル14が動けるスペースを十分に確保でき、さらに、刷掃時にタフト15が支え合って隙間部分にブリッスル14が届き易くなる。   The occupation ratio of the notch width w of one or more flocked holes 13 in the short direction Y at an arbitrary position in the longitudinal direction X with respect to the maximum width W of the flocked region 19A in the short direction Y is 70% or less. As a result, a sufficient space for the bristle 14 to move between the flock holes 13 in the short direction Y can be secured, and the tuft 15 can support each other at the time of brushing so that the bristle 14 can easily reach the gap portion.

また、植毛台11の各列における長手方向Xに隣接する植毛孔13間の中心配設ピッチは、例えば2〜4mm、好ましくは2.5〜3.5mmとなっている。   Moreover, the center arrangement | positioning pitch between the flock holes 13 adjacent to the longitudinal direction X in each row | line | column of the flocking table 11 is 2-4 mm, for example, Preferably it is 2.5-3.5 mm.

したがって、本第1実施形態の歯ブラシ10は、ブラシ部16の先端3箇所のタフト15を除いた全体に亘ってブリッスル14の偏りがなく、略均一にブリッスル14の植毛密度が高くなっているため、例えば歯ぐきや歯面等に対するブラシ面のあたり具合がばらつくことによる歯ぐきへの負担等を軽減し、かつ、歯面を磨き残すことなくすき間まで磨くことができる歯ブラシを構成することになる。   Therefore, the toothbrush 10 according to the first embodiment has no unevenness of the bristle 14 throughout the entire portion excluding the tufts 15 at the three ends of the brush portion 16, and the flocking density of the bristle 14 is substantially uniform. Thus, for example, a toothbrush that can reduce the burden on the gums due to variations in the degree of contact of the brush surface with the gums, tooth surfaces, etc., and that can polish to the gap without leaving the tooth surfaces to be polished is formed.

また、本第1実施形態によれば、植毛孔13は、略正方形の形状を有しており、略正方形の対角線を植毛台11の長手方向Xと平行に配置することにより、上述のようなブラシ部16の先端3箇所のタフト15を除いた全体に亘ってブリッスル14の偏りがなく、略均一にブリッスル14の植毛密度が高くなった歯ブラシ10の形成が容易になる。   In addition, according to the first embodiment, the flock hole 13 has a substantially square shape, and by arranging the diagonal of the substantially square in parallel with the longitudinal direction X of the flocking table 11, The bristle 14 is not biased over the entire portion excluding the tufts 15 at the three ends of the brush portion 16, and the toothbrush 10 in which the bristles 14 have a high flocking density can be easily formed.

さらに、本第1実施形態によれば、タフト15を構成するブリッスル14は、先端がテーパー形状となっているので、ブリッスル14の植毛密度が高くなったブラシ部16の刷掃時における感触をソフトにすることが可能になり、更に歯ぐきが弱くなった中高年の使用者に対して好適な歯ブラシを構成することになる。   Furthermore, according to the first embodiment, since the bristle 14 constituting the tuft 15 has a tapered tip, the feel of the brush portion 16 having a high flocking density of the bristle 14 is softened. Therefore, a toothbrush suitable for middle-aged and older users who have weakened gums can be constructed.

なお、植毛部A以外の植毛部Bの植毛仕様、例えば本第1実施形態における植毛台11の先端3箇所の植毛孔13の配置やその平面形状、及び当該植毛孔13に植設されるブリッスル14の形状等の植毛仕様については、特に限定されるものではないが、歯ぐきへの負担等の軽減の観点から、植毛部Aの植毛仕様に準じた、植毛密度の偏りのない刷掃時の感触がソフトな仕様であることが好ましい。   In addition, the flocking specification of the flocked part B other than the flocked part A, for example, the arrangement and the planar shape of the flocked holes 13 at the three tips of the flocked table 11 in the first embodiment, and the bristle planted in the flocked hole 13 Although there are no particular limitations on the flocking specifications such as the shape of 14, from the viewpoint of reducing the burden on the gums, etc., at the time of wiping without unevenness of flocking density according to the flocking specifications of the flocked part A It is preferable that the feel is a soft specification.

図3及び図4は、本発明の好ましい第2実施形態に係る歯ブラシ20を示すものである。本第2実施形態の歯ブラシ20は、上記第1実施形態の歯ブラシ10と略同様の構成を備える一方で、タフト15を構成するブリッスル14の先端を連ねたブラシ面21は、植毛台11の短手方向Yと対向する側面側から見た際に、両端部分を頂部として、好ましくは20〜40mmの曲率半径で弧状に湾曲する扁平なμ字状の凹形状となっており(図3参照)、且つ植毛台11の長手方向Xと対向する先端側から見た際に、中央部分を頂部とする好ましくは25〜35度の頂角の山状の凸形状となっている。   3 and 4 show a toothbrush 20 according to a second preferred embodiment of the present invention. The toothbrush 20 of the second embodiment has substantially the same configuration as the toothbrush 10 of the first embodiment, while the brush surface 21 connecting the tips of the bristles 14 constituting the tuft 15 is short of the flocking table 11. When viewed from the side facing the hand direction Y, it has a flat μ-shaped concave shape that is curved in an arc shape with a radius of curvature of preferably 20 to 40 mm, with both ends being the top (see FIG. 3). And when it sees from the front end side which opposes the longitudinal direction X of the flocking table 11, Preferably it becomes the mountain-shaped convex shape of the top angle of 25-35 degree | times which makes a center part a top part.

本第2実施形態の歯ブラシ10によっても、上記第1実施形態の歯ブラシ10と略同様の作用効果が奏される。また、ブリッスル14の先端を連ねたブラシ面21が、側面側から見た際に、両端部分を頂部として弧状に湾曲する凹形状となっており、且つ先端側から見た際に、中央部分を頂部とする凸形状となっているので、ブラシ部16にブリッスル14が高い密度で植設されていることと相俟って、山切りカットの如くブラシ面に小さな凹凸を設けた場合と比較して、ブラシ面21を密着させつつくまなく磨ける感触が得られると共に、歯列や歯ぐきの境目にフィットする感触が得られる。さらに、ブリッスル14の先端をテーパー形状とすることにより、歯ぐきにやさしい感じが得られると共に、上述のくまなく磨ける感触、或いは歯列や歯ぐきの境目にフィットする感触をさらに向上させることが可能になる。   The toothbrush 10 according to the second embodiment also provides substantially the same operational effects as the toothbrush 10 according to the first embodiment. Further, the brush surface 21 connecting the tip ends of the bristle 14 has a concave shape that is curved in an arc shape with the both end portions as tops when viewed from the side surface side, and the center portion when viewed from the tip side. Since it has a convex shape at the top, combined with the high density density of bristles 14 on the brush part 16, compared with the case where small irregularities are provided on the brush surface like a mountain cut. As a result, it is possible to obtain a feeling that the brush surface 21 can be fully polished while closely contacting the brush surface 21, and a feeling that fits the boundary between the dentition and the gums. Further, by making the tip of the bristle 14 have a tapered shape, it is possible to obtain a feeling that is easy on the gums, and to further improve the feeling that it can be polished all over, or the feeling that fits the boundary between the dentition and the gums. .

なお、本発明は上記各実施形態に限定されることなく種々の変更が可能である。例えば、タフトは、平線を介して植毛孔に植設されるものである必要は必ずしもなく、融着植毛等によって植設されるものであっても良い。また、タフトを構成するブリッスルをテーパー形状のブリッスルとする必要は必ずしもない。   The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the tuft does not necessarily need to be planted in the flock hole through a flat wire, and may be planted by fusion flocking or the like. Further, it is not always necessary that the bristle constituting the tuft be a tapered bristle.

以下、実施例及び比較例により、本発明の歯ブラシをさらに詳細に説明するが、本発明はこれらに限定されるものではない。   Hereinafter, although the toothbrush of this invention is demonstrated in detail by an Example and a comparative example, this invention is not limited to these.

〔実施例1,比較例1〜3〕
上記第2実施形態の歯ブラシ20と同様の構成を有する歯ブラシを実施例1の歯ブラシとした。植毛孔が表1のように配置された市販の歯ブラシ(商品名「チェックいたわりソフト」花王(株)製、商品名「ビトイーン」ライオン社製、商品名「ドゥーパワー」サンスター社製)を比較例1〜3の歯ブラシとした。実施例1、及び比較例1〜3の歯ブラシに対して、植毛台の先端から長手方向に沿って少なくとも植毛台の長さの30〜80%の範囲にある植毛部について、植毛部の植毛領域の面積に対する植毛孔の面積の総和の割合(平均植毛密度)、短手方向の孔間距離、長手方向に沿った植毛孔の列の外縁を結んだ環状線と隣接する列の外縁を結んだ環状線との最短距離、及び植毛台の短手方向の植毛領域の最大幅に対する、植毛孔の短手方向の切欠き幅の最大占有率(短手方向の最大密度)を算定すると共に、以下の方法によって、モデル評価を行った。
[Example 1, Comparative Examples 1-3]
A toothbrush having the same configuration as the toothbrush 20 of the second embodiment was used as the toothbrush of Example 1. Comparison of commercially available toothbrushes with the flock holes arranged as shown in Table 1 (trade name “Check Wari Soft” manufactured by Kao Corporation, product name “Bitoine” Lion, and product name “Dow Power” manufactured by Sunstar) It was set as the toothbrush of Examples 1-3. With respect to the toothbrushes of Example 1 and Comparative Examples 1 to 3, with respect to the flocked portion in the range of at least 30 to 80% of the length of the flocked table along the longitudinal direction from the tip of the flocked table, the flocked region of the flocked portion The ratio of the total area of flock holes to the area of the flock (average flocking density), the distance between holes in the short direction, and the annular line connecting the outer edges of the rows of flock holes along the longitudinal direction and the outer edges of adjacent rows Calculate the maximum occupation ratio (maximum density in the short direction) of the notch width in the short direction of the flocked hole with respect to the shortest distance from the annular line and the maximum width of the flocked region in the short direction of the flocking table, and The model was evaluated by this method.

Figure 0004854280
Figure 0004854280

〔モデル評価方法〕
図5に示すように、R4の曲面同士を向き合わせたアルミブロックによる歯間部モデル40を作成し、この歯間部モデル40の表面に歯垢モデルとしてビデオテープ磁性層41を取り付ける。ビデオテープとしては、西友プライベートブランドの「S‘RIBBON」スタンダードタイプ(120分、型番3T−120SR)」を使用する。作成した歯間部モデル40に対して、ブラッシングマシーンを用いて各歯ブラシによる刷掃を行い、刷掃後にビデオテープ磁性層41を展開して、デジタルカメラで撮影すると共に画像解析する。刷掃条件は、荷重200g、速度60rpm、振幅30mm、回数300回とし、ハミガキとして研磨促進剤であるアパガードMプラス(商品名、サンギ社製)を使用する。画像解析ソフトは、WinROOFを使用し、グレー画像化後、磁性層が剥がれて白くなった部分を歯垢が除去された部分として評価した。評価結果を図6(a)〜(d)に示す。
[Model evaluation method]
As shown in FIG. 5, an interdental model 40 made of aluminum blocks in which the curved surfaces of R4 face each other is created, and a video tape magnetic layer 41 is attached to the surface of the interdental model 40 as a plaque model. As the video tape, Seiyu Private Brand's “S'RIBBON” standard type (120 minutes, model number 3T-120SR) ”is used. The created interdental model 40 is brushed by each toothbrush using a brushing machine, and after the brushing, the video tape magnetic layer 41 is developed and photographed with a digital camera and image analysis is performed. The cleaning conditions are a load of 200 g, a speed of 60 rpm, an amplitude of 30 mm, and a frequency of 300 times, and Apaguard M Plus (trade name, manufactured by Sangi) as a polishing accelerator is used as a toothpaste. As the image analysis software, WinROOF was used, and after forming a gray image, a portion where the magnetic layer was peeled off and whitened was evaluated as a portion where plaque was removed. An evaluation result is shown in Drawing 6 (a)-(d).

図6(a)〜(d)に示す評価結果によれば、本発明に係る実施例1の歯ブラシは、ブリッスルの平均密度も高く、密度に偏りがないので、万遍なく磨け、歯間にもよく届いていることが判明する。また、比較例1の歯ブラシは、平均植毛密度が低いので、全体的に磨き残しが多いことが判明する。さらに、比較例2の歯ブラシは、短手方向の密度が高すぎるので、歯間にブリッスルが入り込み難いことが判明する。さらにまた、比較例3の歯ブラシは、長手方向に植毛されていない空間が多いため、後端側で内側に磨き残し多いことが判明する。   According to the evaluation results shown in FIGS. 6 (a) to 6 (d), the toothbrush of Example 1 according to the present invention has a high average density of bristles, and the density is not biased. It turns out that well delivered. Moreover, since the toothbrush of the comparative example 1 has a low average flocking density, it turns out that there is much unpolished as a whole. Furthermore, since the toothbrush of the comparative example 2 has the density of a transversal direction too high, it turns out that a bristle does not enter between teeth easily. Furthermore, since the toothbrush of the comparative example 3 has many spaces which are not flocked to the longitudinal direction, it turns out that there are much unpolished inside on the rear end side.

本発明の好ましい第1実施形態に係る歯ブラシの要部斜視図である。It is a principal part perspective view of the toothbrush which concerns on preferable 1st Embodiment of this invention. (a)は本発明の好ましい第1実施形態に係る歯ブラシの要部平面図、(b)は長手方向に沿った植毛孔の列の外縁を結んだ環状線を説明する要部平面図である。(A) is a principal part top view of the toothbrush which concerns on preferable 1st Embodiment of this invention, (b) is a principal part top view explaining the cyclic | annular line which tied the outer edge of the row of flock holes along a longitudinal direction. . 本発明の好ましい第2実施形態に係る歯ブラシの要部側面図である。It is a principal part side view of the toothbrush which concerns on preferable 2nd Embodiment of this invention. 本発明の好ましい第2実施形態に係る歯ブラシの要部正面図である。It is a principal part front view of the toothbrush which concerns on preferable 2nd Embodiment of this invention. モデル評価方法の説明図である。It is explanatory drawing of a model evaluation method. (a)〜(d)はモデル評価方法の評価結果を画像解析した解析図である。(A)-(d) is the analysis figure which image-analyzed the evaluation result of the model evaluation method.

符号の説明Explanation of symbols

10,20 歯ブラシ
11 植毛台
12 首部
13 植毛孔
14 ブリッスル
15 タフト(毛束)
16 ブラシ部
17 歯ブラシ本体
18A 植毛部Aにおける最外周に配置される植毛孔の外縁を結んだ環状線
18L 植毛孔の列の外縁を結んだ環状線
19A 植毛部Aの植毛領域
21 ブラシ面
A,B 植毛部
X 植毛台の長手方向
Y 植毛台の短手方向
10,20 Toothbrush 11 Flocking table 12 Neck part 13 Flocking hole 14 Bristle 15 Tuft (hair bundle)
16 Brush part 17 Toothbrush main body 18A Annular line 18L which tied the outer edge of the flock hole arranged in the outermost periphery in the flocked part A An annular line 19A which tied the outer edge of the row of flocked holes A flocked area 21 of the flocked part A Brush surface A, B Flocking part X Longitudinal direction Y of flocking table Y Short direction of flocking table

Claims (4)

ブリッスルを束ねてなるタフトが植毛台の複数の植毛孔に各々植設されている歯ブラシであって、前記植毛台の先端から長手方向に沿って少なくとも植毛台の長さの30〜80%の範囲にある植毛部について、
(イ)前記植毛孔は、略正方形、略菱形又は略正六角形の平面形状を有し、
(ロ)前記植毛部の最外周に配置される前記植毛孔の外縁を結んだ環状線によって囲まれる領域を前記植毛部の植毛領域として、該植毛領域の面積に対する前記植毛孔の面積の総和の割合が40〜60%であり、
(ハ)隣接する前記植毛孔の縁部間には前記植毛台の長手方向と垂直な短手方向に1mm以上の間隔が保持されており、
(ニ)前記植毛台の長手方向に沿って形成される前記植毛孔の列の外縁を結んだ環状線と前記列と隣接した植毛孔の列の外縁を結んだ環状線の最短距離は1mm以下であり、
(ホ)且つ前記植毛台の長手方向と垂直な短手方向の前記植毛領域の最大幅に対する、前記長手方向の任意の位置における短手方向の1又は2以上の前記植毛孔の切欠き幅の占有率が70%以下となっている歯ブラシ。
A tuft formed by bundling bristles is a toothbrush that is implanted in each of a plurality of flock holes of a flocking table, and ranges from 30 to 80% of the length of the flocking table along the longitudinal direction from the tip of the flocking table About the flocked part in
(A) The flock hole has a planar shape of a substantially square, a substantially rhombus or a substantially regular hexagon,
(B) A region surrounded by an annular line connecting the outer edges of the flocked hole arranged on the outermost periphery of the flocked portion is defined as a flocked region of the flocked portion, and the total area of the flocked holes with respect to the area of the flocked region The percentage is 40-60% ,
(C) A gap of 1 mm or more is maintained between the edges of the adjacent flock holes in the short direction perpendicular to the longitudinal direction of the flocking table,
(D) The shortest distance between the annular line connecting the outer edge of the row of flock holes formed along the longitudinal direction of the flocking table and the annular line connecting the outer edge of the row of flock holes adjacent to the row is 1 mm or less. And
(E) Notch width of one or more flocked holes in the short direction at an arbitrary position in the longitudinal direction with respect to the maximum width of the flocked region in the short direction perpendicular to the longitudinal direction of the flocking table A toothbrush with an occupancy of 70% or less.
前記植毛孔は、略正方形又は略菱形の平面形状を有しており、略正方形又は略菱形の対角線が前記長手方向と平行に配置される請求項1に記載の歯ブラシ。   The toothbrush according to claim 1, wherein the flock hole has a substantially square or approximately rhombic planar shape, and diagonal lines of the approximately square or approximately rhombus are arranged in parallel to the longitudinal direction. 前記タフトを構成するブリッスルが、テーパー形状となっている請求項1又は2に記載の歯ブラシ。   The toothbrush according to claim 1, wherein the bristle that forms the tuft has a tapered shape. 前記タフトを構成するブリッスルの先端を連ねたブラシ面は、前記植毛台の短手方向と対向する側面側から見た際に両端部分を頂部として弧状に湾曲するμ字状又はU字状の凹形状となっており、且つ前記植毛台の長手方向と対向する先端側から見た際に中央部分を頂部とする山状又は弧状の凸形状となっている請求項1〜3のいずれか1項に記載の歯ブラシ。 The brush surface connecting the tips of the bristles constituting the tuft is a μ-shaped or U-shaped concave that curves in an arc shape with both ends as tops when viewed from the side facing the short direction of the flocking table. has a shape, and the bristles stand longitudinally opposite to any one of the mountain-shaped or claims 1-3 which is the arcuate convex shape to the top portion of the central portion when viewed from the tip side Toothbrush as described in.
JP2005343247A 2005-11-29 2005-11-29 toothbrush Expired - Fee Related JP4854280B2 (en)

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Cited By (1)

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USD754443S1 (en) 2014-06-11 2016-04-26 Colgate-Palmolive Company Oral care implement

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EP2184032A1 (en) * 2008-11-05 2010-05-12 Braun Gmbh Electric toothbrush and brush head therefor
AU2011268270B2 (en) 2010-06-17 2015-06-11 Lg Household & Health Care Ltd. Bristle configuration
EP2965654B1 (en) * 2014-07-11 2021-04-28 The Procter & Gamble Company Head for an oral care implement
JP2016198651A (en) * 2016-09-07 2016-12-01 花王株式会社 toothbrush

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DE3404150A1 (en) * 1984-02-07 1985-08-08 Blendax-Werke R. Schneider Gmbh & Co, 6500 Mainz TOOTHBRUSH
JPH0715205Y2 (en) * 1988-11-02 1995-04-10 ティーディーケイ株式会社 Non-reciprocal circuit element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD754443S1 (en) 2014-06-11 2016-04-26 Colgate-Palmolive Company Oral care implement

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