JP2008093449A - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
JP2008093449A
JP2008093449A JP2007264749A JP2007264749A JP2008093449A JP 2008093449 A JP2008093449 A JP 2008093449A JP 2007264749 A JP2007264749 A JP 2007264749A JP 2007264749 A JP2007264749 A JP 2007264749A JP 2008093449 A JP2008093449 A JP 2008093449A
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Japan
Prior art keywords
head
tuft
tufts
toothbrush
handle
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Pending
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JP2007264749A
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Japanese (ja)
Inventor
Donna Beals
ドンナ、ビールズ
Maisie Wong-Paredes
メイジ、ウォング‐パレデス
Thomas Craig Masterman
トーマス．クレイグ、マスターマン
Michael Roberts
マイケル、ロバーツ
Bradley Castillo
ブラッドリー、カスティーロ
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Gillette Canada Inc
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Gillette Canada Inc
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26873851&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JP2008093449(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US09/177,991 external-priority patent/US6308367B1/en
Application filed by Gillette Canada Inc filed Critical Gillette Canada Inc
Publication of JP2008093449A publication Critical patent/JP2008093449A/en
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    • 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
    • A46B9/045—Arranged like in or for toothbrushes specially adapted for cleaning a plurality of tooth surfaces simultaneously
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • A46B5/026—Grips or handles having a nonslip section
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • 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

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Brushes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toothbrush which provides improved cleaning of round flat plaque around the gum, debris, interproximal areas, lingual surfaces and other hard to reach areas of the mouth. <P>SOLUTION: This toothbrush comprises a handle, a head extending from the handle, and a plurality of tufts of bristles secured to the head. One of the tufts is secured to the head at a location such that no other tuft is secured to the head at a location which is more distal from the handle than the location where the one tuft is secured to the head. The one tuft is angled by about 81 degrees or less relative to an imaginary line which is tangent to or co-planar with a surface of the head through which the one tuft is secured to the head. The one tuft is tilted away from the handle towards a direction along which the head extends from the handle. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、全般的に口腔の手入れ分野に関し、特に歯ブラシに係る。更に本発明は、歯の根元間と歯茎の縁の部分の改善したクリーニングを提供するため三次元的な毛の外形を持つ歯ブラシに関する。   The present invention relates generally to the field of oral care, and in particular to toothbrushes. The invention further relates to a toothbrush having a three-dimensional bristle profile to provide improved cleaning of the roots of the teeth and the edges of the gums.

歯磨き及びフロッシング（flossing)は良好な口腔衛生を成すための基本的なステップである。フロッシングを実施することは、フロッシングが良好な口腔衛生の一部として行うべきだと言うことを一般の人々が理解しているとはいえ、不幸にも一般の人々の間に広く受け入れられていなかった。更に時々フロスをする人であっても、口全域に達するよう適切にフロッシングすることは困難でできなかった。不幸にも多くの商用的に有用な歯ブラシが歯の外側の頬側の面を綺麗にできるとはいえ、歯茎の縁の丸い平らなできもの(plaque)や破損した跡(debris)、根元の間の部分、舌に面する面及び他の口の中の到達することが困難な部分に改善されたクリーニングを行うことはできなかった。   Tooth brushing and flossing are the basic steps for good oral hygiene. Unfortunately, although the general public understands that flossing should be done as part of good oral hygiene, it is unfortunately not widely accepted by the general public It was. Furthermore, even a person who flosses occasionally cannot properly floss to reach the entire mouth. Unfortunately, many commercially useful toothbrushes can clean the buccal surface on the outside of the tooth, but the plague, debris, and root Improved cleaning could not be performed on the middle part, the face facing the tongue and the other difficult to reach parts in the mouth.

かかる歯ブラシが最も後方の臼歯（例えば親不知又は第２の臼歯）を適切に綺麗にできない一つの理由は、歯ブラシの柄から最も末端に配置された歯ブラシヘッドに取り付けられた一つ以上の房(tufts)が、柄から延びるヘッドに沿う方向に角度付けられていない、即ち曲がっていないからである。このようにこの房は、口の後方の臼歯を十分に綺麗にするため、歯ブラシのへッドの端部を超えて充分延長していない。   One reason that such toothbrushes cannot properly clean the rearmost molars (eg, wisdom or second molars) is that one or more tufts attached to the toothbrush head located distally from the toothbrush handle. ) Is not angled in the direction along the head extending from the handle, i.e. not bent. Thus, the tuft is not sufficiently extended beyond the end of the toothbrush head to sufficiently clean the molars behind the mouth.

更に柄に対して角度付けられている即ち曲がっている毛の房を持ち、他の房は柄から離れる方向に曲がっている前記ブラシにおいては、かかる全ての房は本質的に同じ長さで、同じ断面をしている。その結果かかる曲がった房は歯の一部分を満足する方法で綺麗にできるが、歯の他の部分は房が均一な長さ、間隔且つ断面をしている理由から十分に綺麗にすることができなかった。   Furthermore, in the brush, which has a tuft of hair that is angled or bent with respect to the handle and the other tufts are bent away from the handle, all such tufts are essentially the same length, Have the same cross section. As a result, such bent tresses can be cleaned in a way that satisfies part of the teeth, but other parts of the teeth can be cleaned sufficiently because the tresses have a uniform length, spacing and cross-section. There wasn't.

更に従来の歯ブラシはせいぜい３つの異なる型の断面を有する毛の房を備えているものがあった。しかしながらブラシによりクリーニングするに必要な歯の部分は３個より以上（例えば外側の頬に面する面、歯茎の縁、根元の間、舌に面する面及び最も後方の臼歯）ある。このように従来のブラシは歯の全ての部分を綺麗にするように特別に設計された十分に変化する断面の房を備えていなかった。   In addition, some conventional toothbrushes have at most three tufts of bristle with different types of cross-sections. However, there are more than three parts of the tooth that need to be cleaned with a brush (for example, the outer cheek-facing surface, the gum rim, the root, the tongue-facing surface, and the rearmost molar). Thus, conventional brushes did not have fully varying cross-section tufts specially designed to clean all parts of the teeth.

本発明は前述の問題点の一つ以上を克服することを意図する。   The present invention is intended to overcome one or more of the problems set forth above.

本発明の一つの見地を簡潔に要約すれば、歯ブラシは、柄、該柄から延びるヘッド、及び該ヘッドに固定即ち取り付けられた毛の複数の房を備える。前記房の一つは、一つの房がヘッドに固着される位置より柄のより末端の位置で、他の何れの房も固着されない位置に固着される。一つの房は、ヘッドに固着される一つの房を介してヘッドの面に対して正接又は同一平面にある仮想線に対して約８１°以下に角度付けられ、即ち曲がっている。一つの房はヘッドが柄から延びるヘッドに沿う方向に対して柄から離れるように傾斜している。   Briefly summarizing one aspect of the present invention, a toothbrush comprises a handle, a head extending from the handle, and a plurality of tufts of bristles fixed or attached to the head. One of the tufts is secured at a position that is more distal to the handle than a position at which one tuft is secured to the head and at a position where no other tuft is secured. One tuft is angled or bent about 81 ° or less with respect to an imaginary line that is tangent to or coplanar with the surface of the head via one tuft secured to the head. One tuft is inclined so that the head is away from the handle relative to the direction along the head extending from the handle.

上述のように一つの房を曲げることにより、房は歯ブラシのヘッドの端部を超えて延びることができ、これにより口の後方の臼歯を十分に綺麗にすることができる。   By bending a single tuft as described above, the tuft can extend beyond the end of the head of the toothbrush, thereby making the molars behind the mouth sufficiently clean.

本発明の他の見地によれば、歯ブラシは、柄と、該柄から延びるヘッドと、ヘツドに固着された複数の毛の房を具備する。房の２つは、ヘッドに固着される２つの房を介してヘッドの面に対して正接又は同一平面にある仮想線に対してそれぞれ鋭角を成している。前記２つの房は、長さ、断面、色、材料及びその結合から成る特性の群から選択された互いに異なる特徴をしている。   According to another aspect of the invention, the toothbrush includes a handle, a head extending from the handle, and a plurality of tufts of hair secured to the head. Two of the tufts each form an acute angle with respect to a virtual line that is tangent to or coplanar with the surface of the head via the two tufts fixed to the head. The two tufts have different characteristics selected from the group of properties consisting of length, cross-section, color, material, and combinations thereof.

長さ、断面、色、材料及びその結合において変化する曲がった房を提供することは、歯の一部より以上の部分をこの曲がった房で綺麗にすることができる。例えば一つの型の曲がった房は、歯の頬側の面を綺麗にし、他の型の曲がった房は歯の根元間を綺麗にすることができる。   Providing a bent tuft that varies in length, cross-section, color, material, and combination can clean more than a portion of the tooth with this bent tuft. For example, one type of bent tress can clean the buccal surface of the teeth, and the other type of bent tress can clean the roots of the teeth.

本発明の第３の見地は、柄と、該柄から延びるヘッドと、該ヘッドに固着された毛の多様な房を具備する歯ブラシを提供することにある。房の多様性は少なくとも５個の異なる型の断面を持つ房を備える。   A third aspect of the present invention is to provide a toothbrush comprising a handle, a head extending from the handle, and various tufts of hairs secured to the head. Tuft diversity comprises tufts with at least five different types of cross sections.

少なくとも５個の型の断面を有する房を提供することによって、かかる房は適切に歯の全ての部分（例えば頬に面する外側の面、歯茎の縁、根元間の部分、舌に面する面及び最も後方の臼歯）を綺麗にできる。   By providing a tuft having at least five types of cross-sections, such tuft is suitably suitable for all parts of the tooth (eg, the outer face facing the cheek, the rim of the gums, the part between the roots, the face facing the tongue). And the rearmost molar).

本発明のこれら並びに他の見地、目的、特徴並びに利点は、以下の本発明の好ましい実施形態の詳細な説明及び特許請求の範囲の記載、並びに添付図面に基づく説明から明確に理解されるであろう。   These and other aspects, objects, features and advantages of the present invention will be clearly understood from the following detailed description of the preferred embodiments of the invention, the appended claims, and the description based on the accompanying drawings. Let's go.

図１乃至３において、歯ブラシ１０は柄部分１２と柄からＤ方向に延びるヘッド部分１４を有する。歯ブラシ１０の全長は約１９．５６ｃｍ（７．７インチ）が好ましく、ヘッド１４の幅は最も広い部分で約１．２７ｃｍ（０．５インチ）であることが好ましい。柄１２の主部分１６とヘッド１４はポリプロピレンの一体から成る片から構成される。親指握り部分１８、随意の商標２４（好ましくは長さ約２．１１ｃｍ（０．８３インチ））及び指握り部分２０を含む他の部分は好ましくは熱可塑性エラストマー、好ましくはクレートンゴム(kraton rubber)（約５と約７０の間のショアＡ硬さを有するスチレン及びブタジエン又はイソプレン水素添加又は水素非添加オイル充填ブロック共重合体）から構成される。親指握り部分１８と指握り部分２０は、柄の握り力の助けになる一連の１７個の立ち上がったリブ２２を有している。リブ２２は幅１．２７ｍｍ（０．０５インチ）であることが好ましい。   1 to 3, the toothbrush 10 has a handle portion 12 and a head portion 14 extending in the D direction from the handle. The overall length of the toothbrush 10 is preferably about 7.7 inches, and the width of the head 14 is preferably about 0.5 inches at the widest portion. The main portion 16 and the head 14 of the handle 12 are composed of a single piece of polypropylene. The thumb grip portion 18, optional trademark 24 (preferably about 0.83 inches long) and other portions including the finger grip portion 20 are preferably thermoplastic elastomers, preferably kraton rubber ( Styrene and butadiene or isoprene hydrogenated or non-hydrogenated oil-filled block copolymers having a Shore A hardness of between about 5 and about 70). The thumb grip portion 18 and the finger grip portion 20 have a series of 17 raised ribs 22 that aid in gripping the handle. The ribs 22 are preferably 1.27 mm (0.05 inches) wide.

図３乃至７において、毛の複数の房２６は歯ブラシのヘッド１４に固着即ち取り付けられる。各房は多数の毛から作り上げられ、全ての毛は端が丸くなっていることが好ましい。５つの異なる型の房がヘツドに固着され、房の各型は他の型の房とは面積並びに形状が異なる断面を有している。   3-7, the plurality of tufts 26 of hair are secured or attached to the head 14 of the toothbrush. Each tress is made up of a number of hairs, preferably all hairs are rounded at the ends. Five different types of tufts are affixed to the head and each tuft has a cross-section that differs in area and shape from the other tufts.

房の第１の型２８はポリブチレンテレフタレート（ＰＢＴ）全体に亘り混合されたカオリン粘土分子のような研磨剤を備えるＰＢＴから成る毛で構成される。かかる毛は直径０．１２７ｍｍ乃至０．２２９ｍｍ（０．００５〜０．００９インチ）の間、好ましくは直径０．１７８ｍｍ（０．００７インチ）である。ヘッド１４の面３０から計った毛の長さは約１１．１８ｍｍ（０．４４０インチ）である。房２８の房を付けられた断面積は約２４．０６ｍｍ２（０．０３７３平方インチ）であり、ヘッド面から計った房の体積は約０．２６９ｍ３（０．０１６４立方インチ）（この体積は好ましくは約０．２４６ｃｍ３乃至０．２９５ｃｍ３（０．０１５〜０．０１８立方インチ）の間にある）である。唯一つの型２８の房がヘッド１４に取り付けられ、これはその他の房より柄１４から最も末端にある。 The first mold 28 of the tuft is composed of hair made of PBT with an abrasive such as kaolin clay molecules mixed throughout polybutylene terephthalate (PBT). Such bristles are between 0.127 mm and 0.229 mm (0.005 to 0.009 inches) in diameter, preferably 0.178 mm (0.007 inches) in diameter. The length of the hair measured from the face 30 of the head 14 is about 0.440 inches. The tufted cross section of tuft 28 is about 24.06 mm 2 (0.0373 square inch), and the tuft volume measured from the head surface is about 0.269 m 3 (0.0164 cubic inch) (this volume). Is preferably between about 0.246 cm 3 and 0.295 cm 3 (0.015 to 0.018 cubic inches). Only one mold 28 tuft is attached to the head 14, which is farthest from the handle 14 than the other tufts.

房の第２の型３２はナイロンインジケータ（商標）の型の毛から作られ、６．１２ナイロンから成り外面は青に色付けされている。当業者では周知のように、かかる毛の青色の着色は、ブラシが長時間使用されたとき次第にすり減り歯ブラシの消耗限度を示す。該毛は直径０．１２７ｍｍ乃至０．２２９ｍｍ、好ましくは直径０．１７８ｍｍである。ヘッド１４の面３０から計った毛の長さは約８．８９ｍｍ（０．３５０インチ）である。各房３２の断面積は約２．９０ｍｍ２（０．００４５平方インチ）である。図６に示すように型３２の房は丸い断面をしている。８乃至１２の間の本数の型３２の房がヘッド１４に取り付けられている。 The second mold 32 of the tuft is made from the hair of the nylon indicator ™ mold and is made of 6.12 nylon and the outer surface is colored blue. As is well known to those skilled in the art, the blue coloration of such bristles will gradually wear out when the brush is used for extended periods of time, indicating the wear limit of the toothbrush. The bristles have a diameter of 0.127 mm to 0.229 mm, preferably a diameter of 0.178 mm. The length of the hair measured from the face 30 of the head 14 is about 0.350 inches. Cross-sectional area of each tuft 32 is about 2.90 mm 2 (0.0045 square inches). As shown in FIG. 6, the tuft of the mold 32 has a round cross section. Between eight and twelve mold 32 tufts are attached to the head 14.

第３の型３４の房は、ＰＢＴ全体に亘り混合されたカオリン粘土分子のような研磨剤を備えるＰＢＴから成る毛で構成される。該毛は直径０．１２７ｍｍ乃至０．２２９ｍｍ、好ましくは直径０．１７８ｍｍである。ヘッド１４の面３０から計った毛の長さは約１１．１８ｍｍである。各房３４の断面積は約１．７４ｍｍ２（０．００２７平方インチ）である。８乃至１２の間の本数の型３２の房がヘッド１４に取り付けられる。図６に示すように型３４の房は長方形状で丸い端をしている。 The tufts of the third mold 34 are composed of hair made of PBT with an abrasive such as kaolin clay molecules mixed throughout the PBT. The bristles have a diameter of 0.127 mm to 0.229 mm, preferably a diameter of 0.178 mm. The length of the hair measured from the surface 30 of the head 14 is about 11.18 mm. The cross-sectional area of each tuft 34 is about 1.74 mm 2 (0.0027 square inches). Between eight and twelve mold 32 tufts are attached to the head 14. As shown in FIG. 6, the tuft of the mold 34 is rectangular and rounded.

第４の型３６の房は、ＰＢＴ全体に亘り混合されたカオリン粘土分子のような研磨剤を備えるＰＢＴから成る毛で構成される。該毛は直径０．１２７ｍ乃至０．２２９ｍｍ、好ましくは直径０．１７８ｍｍである。ヘッド１４の面３０から計った毛の長さは約１１．１８ｍｍである。各房３６の断面積は約２．５８ｍｍ２（０．００４０平方インチ）である。４乃至６の間の本数の型３６の房がヘッド１４に取り付けられる。図６に示すように型３６の房は丸い端を持つ長方形状で、型３４の房よりヘッドの横方向に幅広い。 The tufts of the fourth mold 36 are composed of hair made of PBT with an abrasive such as kaolin clay molecules mixed throughout the PBT. The bristles have a diameter of 0.127 m to 0.229 mm, preferably a diameter of 0.178 mm. The length of the hair measured from the surface 30 of the head 14 is about 11.18 mm. Cross-sectional area of each tuft 36 is about 2.58 mm 2 (0.0040 square inches). Four to six tufts of mold 36 are attached to the head 14. As shown in FIG. 6, the tuft of the mold 36 has a rectangular shape with round ends, and is wider than the tuft of the mold 34 in the lateral direction of the head.

第５且つ最後の型３８の房は、ＰＢＴ全体に亘り混合されたカオリン粘土分子のような研磨剤を備えるＰＢＴから成る毛で構成される。該毛は直径０．１３ｍｍ乃至０．２３ｍｍ、好ましくは直径０．１５２ｍｍ（０．００６インチ）である。ヘッド１４の面３０から計った毛の長さは約８．８９ｍｍ（０．３５０インチ）である。各房３８の断面積は約５．４２ｍｍ２（０．００８４平方インチ）である。４乃至６の間の本数の型３８の房がヘッド１４に取り付けられる。図６に示すように型３８の房は丸い端を持つ長方形状で、型３６の房より幅広い。 The fifth and last mold 38 tufts are composed of bristles made of PBT with an abrasive such as kaolin clay molecules mixed throughout the PBT. The bristles have a diameter of 0.13 mm to 0.23 mm, preferably 0.152 mm (0.006 inch). The length of the hair measured from the face 30 of the head 14 is about 0.350 inches. Cross-sectional area of each tuft 38 is about 5.42mm 2 (0.0084 square inches). Four to six tufts of mold 38 are attached to the head 14. As shown in FIG. 6, the tufts of the mold 38 are rectangular with rounded ends and are wider than the tufts of the mold 36.

前述したように各房の断面積についてみると、型２８の房はヘッド１４に取り付けられた他の何れの房より４倍以上の大きな断面を有する。各房の毛が前述のように特定な材料から構成されることについて述べたが、他の材料も使用できる。ヘッド１１に取り付けられる何れの毛も、通常例えばカオリン粘土のような研磨剤を用いるか又は用いないＰＢＴ、研磨剤を用いるか又は用いない６．１２ナイロン、又は研磨剤を用いるか又は用いないナイロンインジケータ（商標）から構成される。   As described above, regarding the cross-sectional area of each tuft, the tuft of the mold 28 has a cross section that is four times larger than any other tuft attached to the head 14. Although each tuft has been described as being made of a specific material as described above, other materials can be used. Any hair attached to the head 11 is typically PBT with or without abrasives such as kaolin clay, 6.12 nylon with or without abrasives, or nylon with or without abrasives It consists of an indicator (trademark).

更に房の中及び房の間の毛は、長さ、直径、断面形状、断面積、色を変更でき且つ異なる材料から構成される。   Furthermore, the hairs in and between the tufts can be varied in length, diameter, cross-sectional shape, cross-sectional area, color and are composed of different materials.

図２，４，５と７に示すように、ヘッド１４の全ての房は方向Ｄ又は方向Ｄの反対の方向に対し、ヘッド１４の面３０に正接している仮想線に対し、好ましくは８１°以下、より好ましくは約６９°乃至約８１°の間、更に最も好ましくは７５°の角度を成す（当該角度だけ傾斜する）。面３０がカーブしておらずむしろ平坦で有れば、線４０は面３０に対し同一平面になる。房の２つの外側列４２は方向Ｄに対し柄１２から離れる方向に角度付けられている（当該方向に傾斜している）。房の内側列４４は、方向Ｄに対し柄１２から離れるように傾斜している大きな房２８を除いて、方向Ｄと反対方向に柄１２に向けて傾斜されている。   As shown in FIGS. 2, 4, 5 and 7, all tufts of the head 14 are preferably 81 relative to the imaginary line tangent to the face 30 of the head 14 with respect to the direction D or the opposite direction of the direction D An angle of less than or equal to °, more preferably between about 69 ° and about 81 °, and most preferably 75 ° (inclined by that angle). If the surface 30 is not curved but rather flat, the line 40 is coplanar with the surface 30. The two outer rows 42 of tufts are angled away from the handle 12 with respect to the direction D (inclined in that direction). The inner tuft 44 of the tufts is tilted toward the handle 12 in the opposite direction to the direction D, except for the large tuft 28 which is tilted away from the handle 12 with respect to the direction D.

歯ブラシ１０は当業者が周知のように次の方法で製造される。房の毛の各々は選択された材料、長さ且つ直径を有しており、この毛を所望の量一体に集めることにより房が形成される。次いで房は射出成型機のモールドの一部の開口に挿入される。モールド凹所にある又は挿入された房の端部は溶融され、房の端部で溶融した固まり又はボールができるように毛が互いに接合される。房を支持するモールド部分は、歯ブラシの主部分１６を形成するのに使用される凹所を一体に画定するモールドの他の部分と接合される。房の溶融した集まりは凹所内に配置される。   The toothbrush 10 is manufactured by the following method as is well known to those skilled in the art. Each tuft of hair has a selected material, length and diameter, and a tuft is formed by collecting the desired amount of hair together. The tuft is then inserted into a partial opening in the mold of the injection molding machine. The ends of the tufts in or inserted into the mold recess are melted and the hairs are joined together so that a molten mass or ball is formed at the tuft ends. The mold part that supports the tuft is joined with the other part of the mold that integrally defines the recess used to form the main part 16 of the toothbrush. The molten mass of tufts is placed in the recess.

次いでポリプロピレンが凹所に射出され歯ブラシ１０の部分１６を成型する。部分的に完成した歯ブラシが第２の射出成型ステーションに移動される位置で、ポリプロピレンは冷却される。冷却され固化したポリプロピレンは歯ブラシのヘッド１４に房の溶融した集まりを固着する。第２の射出成型ステーションにおいて、部分的に完成したブラシは凹所を有する第２のモールドに押し込まれ親指握り部分１８、商標２４及び指握り部分２０を成型する。熱可塑性エラストマーはモールドに射出され、該エラストマーが冷却され歯ブラシ１０が完成した後、歯ブラシ１０はモールドから取り出される。次いで歯ブラシは包装される。   Polypropylene is then injected into the recess to mold the portion 16 of the toothbrush 10. The polypropylene is cooled at the location where the partially completed toothbrush is moved to the second injection molding station. The cooled and solidified polypropylene adheres the molten mass of tufts to the head 14 of the toothbrush. At the second injection molding station, the partially completed brush is pressed into a second mold having a recess to mold the thumb grip portion 18, trademark 24 and finger grip portion 20. The thermoplastic elastomer is injected into the mold, and after cooling the elastomer and completing the toothbrush 10, the toothbrush 10 is removed from the mold. The toothbrush is then packaged.

本発明の実施形態の歯ブラシの斜視図である。It is a perspective view of a toothbrush of an embodiment of the present invention. 図１の歯ブラシの平面図である。It is a top view of the toothbrush of FIG. 図１の歯ブラシの側面図である。It is a side view of the toothbrush of FIG. 図１の歯ブラシの房のヘツド及び関連部分の部分的な側面図である。FIG. 2 is a partial side view of the head and associated portion of the toothbrush tuft of FIG. 1. 図１の歯ブラシの房のヘツド及び関連部分の部分的な側面図である。FIG. 2 is a partial side view of the head and associated portion of the toothbrush tuft of FIG. 1. 図３の線６―６に沿う歯ブラシのヘツドの部分的な断面図である。FIG. 6 is a partial cross-sectional view of the toothbrush head taken along line 6-6 of FIG. 3; 図１の歯ブラシのヘッド及び柄の一部分の斜視図である。It is a perspective view of a part of head and handle of the toothbrush of FIG.

Claims (30)

柄と、該柄から延びるヘッドと、該ヘッドに固着された複数の毛の房からなる歯ブラシであって、前記房の一つは、ある房がヘッドに固着される位置より柄からより末端の位置で何れの房もヘッドに固着されない位置で、ヘッドに固着され、前記一つの房は前記一つの房がヘッドに固着されるヘッドの面に対し正接又は同一平面にある仮想線に対して約８１°以下に角度付けられ、前記一つの房はヘッドが柄から延びる方向に対し柄から遠ざかる方向に傾斜している歯ブラシ。   A toothbrush comprising a handle, a head extending from the handle, and a plurality of tufts of hairs secured to the head, wherein one of the tufts is more distal from the handle than the position where the tuft is secured to the head At the position where no tuft is secured to the head, the tuft is secured to the head, and the one tuft is approximately tangential to or coplanar with the surface of the head to which the one tuft is secured to the head. A toothbrush that is angled to 81 ° or less, and the one tuft is inclined in a direction away from the handle relative to a direction in which the head extends from the handle. 前記房の一つは仮想線に対して約６９°乃至約８１°角度付けらている請求項１記載の歯ブラシ。   The toothbrush of claim 1, wherein one of the tufts is angled between about 69 ° and about 81 ° with respect to an imaginary line. 前記一つの房は前記仮想線に対して約７５°角度付けられている請求項２記載の歯ブラシ。   The toothbrush of claim 2, wherein the one tuft is angled approximately 75 ° with respect to the phantom line. 前記複数の房は１つの房と少なくとも２つの他の房を備え、該２つの他の房は前記仮想線に対し共に角度を成しており、該２つの他の房はヘッドの面から計って互いに異なる長さをしている請求項１記載の歯ブラシ。   The plurality of tufts comprise one tuft and at least two other tufts, the two other tufts being angled together with respect to the imaginary line, the two other tufts being measured from the face of the head. The toothbrushes according to claim 1, which have different lengths. 前記２つの他の房は長さが約２．３mm互いに異なる請求項４記載の歯ブラシ。   The toothbrush according to claim 4, wherein the two other tufts differ from each other in length by about 2.3 mm. 前記複数の房は前記１つの房と前記２つの他の房を備え、該２つの他の房は前記仮想線に対し共に角度を成しており、前記２つの他の房は互いに異なる断面をしている請求項１記載の歯ブラシ。   The plurality of tufts include the one tuft and the two other tufts, the two other tufts being angled together with respect to the imaginary line, and the two other tufts having different cross sections. The toothbrush according to claim 1. 前記断面は互いに異なる形状をしている請求項６記載の歯ブラシ。   The toothbrush according to claim 6, wherein the cross sections have different shapes. 前記断面は互いに異なる面積をしている請求項６記載の歯ブラシ。   The toothbrush according to claim 6, wherein the cross sections have different areas. 前記１つの房の断面積はヘッドに固着される他の何れの房より少なくとも４倍の断面積である請求項１記載の歯ブラシ。   The toothbrush according to claim 1, wherein the cross-sectional area of the one tuft is at least four times the cross-sectional area of any other tuft fixed to the head. 前記１つの房がヘッドに固着される柄から末端の位置には他の房がヘッドに固着されていない請求項１記載の歯ブラシ。   The toothbrush according to claim 1, wherein another tuft is not secured to the head at a position from a handle to which the one tuft is secured to the head. 柄と、該柄から延びるヘッドと、該ヘッドに固着された毛の複数の房とからなる歯ブラシであって、前記房の２つはそれぞれが、２つの房がヘッドに固着されていヘッド面に対して正接又は同一平面にある仮想線に対して鋭角であり、前記２つの房が、長さ、断面、色、材料及びその組み合わせから成る特性の群から互いに選択された互いに異なる特性を有する歯ブラシ。   A toothbrush comprising a handle, a head extending from the handle, and a plurality of tufts of bristles secured to the head, each of the tufts having two tufts secured to the head and A toothbrush that is acute with respect to a tangent or coplanar line with respect to each other, and wherein the two tufts have mutually different characteristics selected from the group of characteristics consisting of length, cross section, color, material and combinations thereof . 特性は長さであり且つ２つの房間の長さの差は約２．３mmである請求項１１記載の歯ブラシ。   The toothbrush of claim 11, wherein the characteristic is length and the difference in length between the two tufts is about 2.3 mm. 特性は断面であり且つ断面積が異なる請求項１１記載の歯ブラシ。   The toothbrush according to claim 11, wherein the characteristic is a cross section and a cross-sectional area is different. 特性は断面であり且つ断面形状が異なる請求項１１記載の歯ブラシ。   The toothbrush according to claim 11, wherein the characteristic is a cross-section and the cross-sectional shape is different. 第３の房を更に有し、該第３の房は、その第３の房がヘッドに固着される位置よりも柄からより末端の位置ではヘッドに固着される他の房が無い位置で、ヘッドに固着されている請求項１１記載の歯ブラシ。   A third tuft, wherein the third tuft is at a position where there is no other tuft secured to the head at a position farther from the handle than the position where the third tuft is secured to the head; The toothbrush according to claim 11, which is fixed to the head. 前記第３の房は前記仮想線に対して約６９°乃至約８１°に角度付けられている請求項１５記載の歯ブラシ。   The toothbrush of claim 15, wherein the third tuft is angled from about 69 ° to about 81 ° with respect to the phantom line. 前記第３の房は前記仮想線に対して約７５°に角度付けられている請求項１６記載の歯ブラシ。   The toothbrush of claim 16, wherein the third tuft is angled at approximately 75 degrees with respect to the phantom line. 前記第３の房の断面積は、ヘッドに固着された他の何れの房より少なくとも４倍の断面積である請求項１５記載の歯ブラシ。   The toothbrush according to claim 15, wherein the cross-sectional area of the third tuft is at least four times that of any other tuft fixed to the head. 他の何れの房も、前記第３の房がヘッドに固着される位置より柄から末端にある位置でヘッドに固着されていない請求項１５記載の歯ブラシ。   The toothbrush according to claim 15, wherein none of the other tufts are fixed to the head at a position that is further from the handle than the position at which the third tuft is fixed to the head. 前記２つの房はほぼ反対方向に傾斜され、１つの房は柄方向に傾斜され、他の房は柄から離れるように傾斜されている請求項１５記載の歯ブラシ。   The toothbrush according to claim 15, wherein the two tresses are inclined in substantially opposite directions, one tress is inclined in a handle direction, and the other tress is inclined away from the handle. 柄と、該柄から延びるヘッドと、該ヘッドに固着された毛の多様な房とを備えた歯ブラシであって、前記多様な房は、少なくとも５つの異なる断面の房を含む歯ブラシ。   A toothbrush comprising a handle, a head extending from the handle, and various tufts of bristles secured to the head, wherein the various tufts include at least five tufts of different cross-sections. 前記房の断面は、互いに断面積が異なる請求項２１記載の歯ブラシ。   The toothbrush according to claim 21, wherein cross sections of the tufts are different from each other. 前記房の断面は、互いに断面形状が異なる請求項２１記載の歯ブラシ。   The toothbrush according to claim 21, wherein cross sections of the tufts are different from each other. 前記第３の房は前記仮想線に対し約８１°以下に角度付けられ、柄から延びるヘッドの全体的な方向に対し柄から離れるように傾斜している請求項１５記載の歯ブラシ。   The toothbrush according to claim 15, wherein the third tuft is angled at about 81 ° or less with respect to the imaginary line, and is inclined away from the handle relative to the general direction of the head extending from the handle. １本以上の毛は他の毛とは異なる特性を有し、特性は長さ、直径、断面積、断面形状、色、材料及びその結合からなる群から選択される請求項１記載の歯ブラシ。   The toothbrush according to claim 1, wherein the one or more bristles have different characteristics from the other bristles, and the characteristics are selected from the group consisting of length, diameter, cross-sectional area, cross-sectional shape, color, material, and combinations thereof. １本以上の毛は他の毛とは異なる特性を有し、特性は長さ、直径、断面積、断面形状、色、材料及びその結合からなる群から選択される請求項１１記載の歯ブラシ。   The toothbrush according to claim 11, wherein the one or more bristles have different characteristics from the other bristles, and the characteristics are selected from the group consisting of length, diameter, cross-sectional area, cross-sectional shape, color, material, and combinations thereof. １つの房は約０．２４６cm3乃至０．２９５cm3の間のヘッド面から計った房体積を有している請求項１記載の歯ブラシ。 The toothbrush of claim 1, wherein one tuft has a tuft volume measured from the head face of between about 0.246 cm 3 and 0.295 cm 3 . ２つの房はほぼ同じ方向に傾斜されている請求項１１記載の歯ブラシ。   The toothbrush according to claim 11, wherein the two tresses are inclined in substantially the same direction. ２つの房は前記仮想線に対して約６９°乃至約８１°に角度付けられている請求項１１記載の歯ブラシ。   The toothbrush of claim 11, wherein the two tufts are angled from about 69 ° to about 81 ° with respect to the phantom line. 前記２つの房は前記仮想線に対して約７５°に角度付けられている請求項２９記載の歯ブラシ。   30. The toothbrush of claim 29, wherein the two tufts are angled at about 75 degrees relative to the phantom line.
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