WO2001082741A1 - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
WO2001082741A1
WO2001082741A1 PCT/JP2001/001819 JP0101819W WO0182741A1 WO 2001082741 A1 WO2001082741 A1 WO 2001082741A1 JP 0101819 W JP0101819 W JP 0101819W WO 0182741 A1 WO0182741 A1 WO 0182741A1
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WO
WIPO (PCT)
Prior art keywords
brush
tip
cut
bristle
bundles
Prior art date
Application number
PCT/JP2001/001819
Other languages
French (fr)
Japanese (ja)
Inventor
Takao Kato
Original Assignee
Lion Corporation
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 Lion Corporation filed Critical Lion Corporation
Priority to AU41070/01A priority Critical patent/AU4107001A/en
Publication of WO2001082741A1 publication Critical patent/WO2001082741A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/06—Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber
    • 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

Definitions

  • the present invention relates to a toothbrush excellent in reachability of a bristle tip to an interdental portion and also excellent in brushing feeling.
  • the tip surface of the brush bundle has a mountain shape having a predetermined inclination angle when viewed from the side.
  • a brush provided with a so-called mountain-cut brush bundle in which the brush tip is cut.
  • the interdental reach of the brush depends on the thickness (diameter) of the implanted brush (monofilament). Is easy to penetrate, and dirt and plaque can be removed.
  • a toothbrush with a tapered brush having a cross-sectional area that continuously decreases from the brush base toward the bristle tip Japanese Utility Model Publication No. 56-15555628, Kaihei 6-154
  • the tip of the brush is tapered, so that the thickness of the brush tip can be reduced to about 0.02 mm, so that the brush has excellent reach to the interdental area and has excellent brushability. It is possible to maintain the thickness at the proximal end of the hair at a certain thickness of 6 to 8 mils (0.152 to 0.23 mm), which improves the durability of the planted portion due to long-term brushing.
  • the feeling of brushing was a little weak.
  • the present invention has been made to solve the above-mentioned problems, and hairs to interdental regions are provided. It is an object of the present invention to provide a toothbrush which is excellent in reachability at the tip and also has excellent feeling of brushing. Disclosure of the invention
  • a toothbrush of the present invention includes a head portion provided with a flocked surface, and a plurality of brush bundles fixed to the flocked surface of the head portion, wherein each of the brush bundles comprises a plurality of brushes.
  • each of the brush bundles comprises a plurality of brushes.
  • at least a part of the plurality of brush bundles is arranged such that a brush tip has a mountain shape when viewed from the side for each brush bundle or each brush bundle group including a predetermined number of brush bundles.
  • the brush is cut, and each of the brushes of the cut bundle of brushes is tapered so that the cross-sectional area decreases from the base toward the bristle tip.
  • the brush tips of the predetermined number of brush bundles are cut so as to have a mountain shape, and the brush tips of the mountain-cut bundle of brushes have a taper shape.
  • the tip easily penetrates deep into the interdental area, and dirt and plaque can be removed effectively.
  • the base side of the brush can be as thick as the brush used in a normal toothbrush. I can give a real feeling.
  • the brush bundle that has been cut into the mountain cuts is formed such that the closer to the top of the chevron formed by the brush tip, the tip of the brush has a sharper tapered shape, so that the bristle penetrates deeper into the interdental portion. And remove dirt and plaque more effectively.
  • the plurality of brush bundles may be arranged such that the brush tips of each pair of adjacent brush bundles form a mountain shape.
  • the tapered brush is, for example, disclosed in Japanese Laid-Open Utility Model Publication No. 56-155556 / 98, Japanese Utility Model Laid-Open No. 154/1994, Japanese Patent Application Laid-Open No. 6-141923 / 1994.
  • the cross-sectional area from the brush base toward the bristle tip Refers to a brush that continuously decreases in size, but the cross-sectional area does not necessarily need to change continuously, but may change intermittently.
  • the cross-sectional shape of the tapered brush need not be circular, for example, Japanese Patent No. 58-15812, Japanese Patent No. 60-818110, Alternatively, as shown in Japanese Utility Model Laid-Open No. 11-95421, other cross-sectional shapes other than a circle, such as an ellipse and a polygon, may be used.
  • the degree of taper (inclination angle) of the tapered portion is uniform in all brushes, but may be irregular and is not particularly limited.
  • a tapered brush for example, it can be obtained by polishing nylon monofilament using a grinder, or by dissolving polyester monofilament (for example, PBT) using an acid or alkali solution. Obtainable.
  • the resin constituting the toothbrush handle provided with the head is not particularly limited.
  • polypropylene, polyethylene, polyethylene terephthalate, polybutylene terephthalate, methyl methyl acrylate, cellulose propionate, etc. Polyurethane, polyamide, ABS and the like can be used.
  • polypropylene is preferred in terms of cost.
  • FIG. 1 is a schematic enlarged side view of a head portion of a toothbrush according to one embodiment of the present invention.
  • FIG. 2 is a partially enlarged view of a brush bundle on which hair is implanted.
  • FIG. 3 is a schematic enlarged side view of a head portion of a toothbrush according to another embodiment of the present invention.
  • FIG. 1 1 is a head portion
  • 2 is a neck portion following the head portion
  • 3 is a grip portion
  • a large number of brush bundles 5 are planted on the flocked surface 4 of the head portion 1.
  • Each brush bundle 5 is formed by bundling a plurality of brushes (monofilaments) 6, and two adjacent brushes
  • the bundles 5 and 5 form a set, and the tips of the brushes are cut into ridges, and the end faces of the brush bundles 5 and 5 are formed in a mountain shape having a predetermined inclination angle when viewed from the side.
  • each of the brushes 6 constituting the mountain-cut brush bundle 5 has a continuously decreasing cross-sectional area from the base side toward the bristle tip.
  • the brush is a tapered brush having a tapered portion 7.
  • the brush 6 that is closer to the top of the chevron of the mountain-cut brush bundle 5, 5 has a taper shape with a sharper tip.
  • adjacent pairs of brush bundles 5 and 5 have a mountain-cutting force, and each of the brushes 6 constituting the mountain-cut brush bundles 5 and 5 has a tapered shape.
  • the tip of the brush 6 can easily penetrate deep into the interdental portion, and dirt and plaque attached to the deep portion between the interdental portions can be effectively removed.
  • the brush 6 closer to the top of the chevron of the pair of chevron cuts 5 and 5 has a taper shape with a sharper tip, so that it is located near the top of the chevron. The more brushes, the sharper the brushes, the deeper the brush can penetrate.
  • each brush 6 has a tapered shape
  • the base side thickness of the brush 6 can be set to the same thickness as a brush used in a normal toothbrush. For this reason, while using a brush having a tapered shape, a sufficient bristle can be secured, and an appropriate feeling of brushing can be obtained.
  • a required number of tapered brushes are bundled into a bundle of brushes, and the toothbrush is implanted on the implanted surface of the head portion so that the end surface of the brush bundle has a desired shape.
  • the end of the brush bundle is cut by a ridge, and if necessary, the end of the brush which constitutes the cut bundle of ridges is rounded, or one or both ends of the brush are tapered. Further grinding may be performed.
  • a pair of adjacent brush bundles 5 implanted on the implanted surface 4 of the head portion 1 is subjected to mountain cutting force as a unit.
  • the method is not limited to this.For example, as shown in Fig. 3, brush bundles may be cut individually by a single slash, or three or more brush bundles may be slashed and cut. It may be. Alternatively, cut the bunch of brushes across the planted area You may cut it.
  • all the brush bundles 5 planted on the flocked surface 4 of the head portion 1 are cut by a mountain cut.
  • the position of the mountain cut is not limited to this. Cut off only the brush bundle at the front half or rear half (neck side) of section 1 or cut off only the brush bundles arranged along the outer periphery of the head section 1. Can be set freely.

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

Abstract

A toothbrush excellent in accessibility of bristle tips to interdental portions and also in brushing response. A plurality of brushing bristle tufts (5) are fixed to the block head (4) of a head unit (1). The bristle tufts (5) are cut on a tuft basis or specified-number-of-tufts basis so that the tip faces of the tufts (5) give mountain shapes. Each bristle (6) in the cut tufts (5) is tapered so as to be gradually reduced in section area from its base toward its tip; the closer to the top of a mountain shape formed by bristle tips a bristle (6) is, the sharper its tapered tip is.

Description

明 細 書 歯ブラシ 技術分野  Description Toothbrush Technical field
本発明は、 歯間部への毛先の到達性に優れるとともに、 刷掃実感にも優れた歯 ブラシに関する。  TECHNICAL FIELD The present invention relates to a toothbrush excellent in reachability of a bristle tip to an interdental portion and also excellent in brushing feeling.
背景技 Background technique
従来、 口腔内の細かい隙間の汚れ、 例えば、 歯間部の汚れや歯垢を除去するた めの歯ブラシとして、 刷毛束の先端面が側方から見て所定の傾斜角からなる山形 を呈するように刷毛先端をカツトしたいわゆる山切りカツトした刷毛束を備えた ものが知られている。 この山切り力ットされた刷毛束を有する歯ブラシの場合、 刷毛の歯間到達性は植毛された刷毛 （モノフィラメント） の太さ （直径） に依存 し、 細いほど歯間部の奥まで毛先が侵入しやすくなり、 汚れや歯垢を除去するこ とが可能となる。 しかし、 径の細い刷毛ほどしないやすく、 毛腰が弱いため、 長 期ブラッシングによる植毛部の耐久性が低く、 また、 刷掃実感も低いといった問 題がある。 そのため、 実際に使用する歯ブラシでは、 刷毛の太さを余り細くする ことができず、 通常は 6〜 1 0ミル （0 . 1 5 2〜0 . 2 5 4 mm) といった適 度の太さの刷毛を使用していた。  Conventionally, as a toothbrush for removing dirt from small gaps in the oral cavity, for example, dirt and plaque in the interdental area, the tip surface of the brush bundle has a mountain shape having a predetermined inclination angle when viewed from the side. There is also known a brush provided with a so-called mountain-cut brush bundle in which the brush tip is cut. In the case of a toothbrush having a brush bundle with a mountain cutting force, the interdental reach of the brush depends on the thickness (diameter) of the implanted brush (monofilament). Is easy to penetrate, and dirt and plaque can be removed. However, there is a problem in that the durability of the flocked portion due to long-term brushing is low, and the feeling of actual brushing is low, because brushes with smaller diameters are easier to perform than brushes with smaller diameters. For this reason, the toothbrush that is actually used cannot make the thickness of the brush very thin, and usually has a moderate thickness of 6 to 10 mils (0.152 to 0.254 mm). I was using a brush.
これに対し、 刷毛基部側から毛先に向かって断面積が連続的に小さくなるテ一 パー形状の刷毛を植毛した歯ブラシ （日本国実開昭 5 6 - 1 5 5 6 2 8号公報、 実開平 6— 1 5 4号公報参照） も知られている。 この歯ブラシの場合、 刷毛先端 がテーパー形状をしているため、 刷毛の先端太さを 0 . 0 2 mm程度まで細くす ることが可能であり、 歯間部への到達性に優れるとともに、 刷毛の基端側の太さ を 6〜8ミル （0 . 1 5 2〜0 . 2 0 3 mm) といったある程度の太さに維持す ることが可能なため、 長期ブラッシングによる植毛部の耐久性にも優れたものと することができるが、 刷掃実感がやや弱いといつた問題があつた。  On the other hand, a toothbrush with a tapered brush having a cross-sectional area that continuously decreases from the brush base toward the bristle tip (Japanese Utility Model Publication No. 56-15555628, Kaihei 6-154) is also known. In the case of this toothbrush, the tip of the brush is tapered, so that the thickness of the brush tip can be reduced to about 0.02 mm, so that the brush has excellent reach to the interdental area and has excellent brushability. It is possible to maintain the thickness at the proximal end of the hair at a certain thickness of 6 to 8 mils (0.152 to 0.23 mm), which improves the durability of the planted portion due to long-term brushing. However, there was a problem that the feeling of brushing was a little weak.
本発明は、 上記のような問題を解決するためになされたもので、 歯間部への毛 先の到達性に優れ、 しかも、 刷掃実感にも優れた歯ブラシを提供することを目的 とする。 発明の開示 SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and hairs to interdental regions are provided. It is an object of the present invention to provide a toothbrush which is excellent in reachability at the tip and also has excellent feeling of brushing. Disclosure of the invention
上記目的を達成するため、 本発明の歯ブラシは、 植毛面を備えたヘッド部と、 該へッド部の植毛面に固定された複数の刷毛束とを含み、 各刷毛束が複数の刷毛 からなる歯ブラシにおいて、 前記複数の刷毛束の少なくとも一部は、 刷毛束毎ま たは所定数の刷毛束からなる刷毛束群毎に刷毛先端が側方から見て山形状を呈す るように刷毛先端がカツトされているとともに、 このカツトされた刷毛束の各刷 毛は、 基部側から毛先に向かってその断面積が小さくなるテーパー形状とされて いることを特徴とする。  In order to achieve the above object, a toothbrush of the present invention includes a head portion provided with a flocked surface, and a plurality of brush bundles fixed to the flocked surface of the head portion, wherein each of the brush bundles comprises a plurality of brushes. In a toothbrush, at least a part of the plurality of brush bundles is arranged such that a brush tip has a mountain shape when viewed from the side for each brush bundle or each brush bundle group including a predetermined number of brush bundles. The brush is cut, and each of the brushes of the cut bundle of brushes is tapered so that the cross-sectional area decreases from the base toward the bristle tip.
このような構成とした場合、 所定数の刷毛束の刷毛先端が山形状となるように カットされているとともに、 山切りカツトされた刷毛束の各刷毛先端がテ一パー 形状であるため、 刷毛先端が歯間部の奥まで侵入しやすくなり、 汚れや歯垢を効 果的に除去することができる。 また、 テーパー形状の刷毛であるため、 刷毛の基 部側太さを通常の歯ブラシで用いられている刷毛と同じ程度の太さとすることが でき、 毛腰も十分に確保して適度な刷掃実感を与えることができる。  In such a configuration, the brush tips of the predetermined number of brush bundles are cut so as to have a mountain shape, and the brush tips of the mountain-cut bundle of brushes have a taper shape. The tip easily penetrates deep into the interdental area, and dirt and plaque can be removed effectively. In addition, since the brush has a tapered shape, the base side of the brush can be as thick as the brush used in a normal toothbrush. I can give a real feeling.
なお、 前記山切りカットされた刷毛束は、 刷毛先端が形成する山形の頂上に近 い刷毛ほどその先端をより先鋭なテーパー形状とすることにより、'歯間部のより 奥深くまで毛先を侵入させることができ、 より効果的に汚れや歯垢を除去するこ とができる。  The brush bundle that has been cut into the mountain cuts is formed such that the closer to the top of the chevron formed by the brush tip, the tip of the brush has a sharper tapered shape, so that the bristle penetrates deeper into the interdental portion. And remove dirt and plaque more effectively.
また、 上記複数の刷毛束は、 隣接する各 1対の刷毛束の刷毛先端が山形を形成 するように配設してもよい。  Further, the plurality of brush bundles may be arranged such that the brush tips of each pair of adjacent brush bundles form a mountain shape.
なお、 テーパー形状の刷毛とは、 例えば、 日本国実開昭 5 6— 1 5 5 6 2 8号 公報、 実開平 6— 1 5 4号公報、 特開平 6— 1 4 1 9 2 3号公報、 特開 2 0 0 0 - 1 4 4 4 7号公報、 あるいは特開 2 0 0 0 - 2 3 7 4 6号公報などに示される ように、 刷毛基部側から毛先に向かってその断面積が連続的に小さくなつていく 刷毛を指すものであるが、 必ずしも断面積は連続的に変化する必要はなく、 不運 続的に変化してもよいものである。 また、 テーパー形状の刷毛の断面形状は、 円形である必要はなく、 例えば、 日 本国特開昭 5 8 - 1 5 8 1 2号公報、 特開昭 6 0 - 8 8 1 1 0号公報、 あるいは 実開平 1一 5 9 4 2 1号公報に示されるように、 楕円形や多角形など、 円形以外 の他の断面形状であってもよいものである。 The tapered brush is, for example, disclosed in Japanese Laid-Open Utility Model Publication No. 56-155556 / 98, Japanese Utility Model Laid-Open No. 154/1994, Japanese Patent Application Laid-Open No. 6-141923 / 1994. As shown in JP-A-2000-14447 or JP-A-200-34746, the cross-sectional area from the brush base toward the bristle tip Refers to a brush that continuously decreases in size, but the cross-sectional area does not necessarily need to change continuously, but may change intermittently. Also, the cross-sectional shape of the tapered brush need not be circular, for example, Japanese Patent No. 58-15812, Japanese Patent No. 60-818110, Alternatively, as shown in Japanese Utility Model Laid-Open No. 11-95421, other cross-sectional shapes other than a circle, such as an ellipse and a polygon, may be used.
また、 テーパー部分のテーパー度 （傾斜角度） は、 すべての刷毛において揃つ ているほうが好ましいが、 不揃いであってもよく、 特に限定されない。 テーパー 形状の刷毛を作るには、 例えば、 ナイロンモノフィラメントをグラインダーを用 いて研磨加工することによって得ることができるし、 ポリエステルモノフィラメ ント （例えば P B T ) を酸もしくはアルカリ溶液を用いて溶解することによって も得ることができる。  It is preferable that the degree of taper (inclination angle) of the tapered portion is uniform in all brushes, but may be irregular and is not particularly limited. To create a tapered brush, for example, it can be obtained by polishing nylon monofilament using a grinder, or by dissolving polyester monofilament (for example, PBT) using an acid or alkali solution. Obtainable.
なお、 へッド部を備えた歯ブラシハンドルを構成する樹脂にも特に限定はない が、 例えば、 ポリプロピレン、 ポリエチレン、 ポリエチレンテレフ夕レート、 ポ リブチレンテレフ夕レート、ポリメ夕クリル酸メチル、プロピオン酸セルロース、 ポリウレタン、 ポリアミ ド、 A B Sなどを用いることができる。 特に、 コストの 点でポリプロピレンが好ましい。 図面の簡単な説明  The resin constituting the toothbrush handle provided with the head is not particularly limited. For example, polypropylene, polyethylene, polyethylene terephthalate, polybutylene terephthalate, methyl methyl acrylate, cellulose propionate, etc. , Polyurethane, polyamide, ABS and the like can be used. In particular, polypropylene is preferred in terms of cost. BRIEF DESCRIPTION OF THE FIGURES
図 1は、 本発明の一実施の形態に係る歯ブラシのへッド部分の略示拡大側面図 である。  FIG. 1 is a schematic enlarged side view of a head portion of a toothbrush according to one embodiment of the present invention.
図 2は、 植毛された刷毛束の部分拡大図である。  FIG. 2 is a partially enlarged view of a brush bundle on which hair is implanted.
図 3は、 本発明の他の実施の形態に係る歯ブラシのへッド部分の略示拡大側面 図である。 発明を実施するための最良の形態  FIG. 3 is a schematic enlarged side view of a head portion of a toothbrush according to another embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明の実施の形態について図面を参照して説明する。  Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図 1および図 2に、 本発明に係る歯ブラシの一実施の形態を示す。 図 1におい て、 1はへヅド部、 2はへヅド部 1に続く首部、 3は把持部であって、 へヅド部 1の植毛面 4には刷毛束 5が多数植設されている。 各刷毛束 5は、 それぞれ複数 本の刷毛 （モノフィラメント） 6を束ねて構成されており、 隣り合う 2つの刷毛 束 5 , 5を一組として刷毛先端が山切りカットされ、 刷毛束 5 , 5の先端面が側 方から見て所定の傾斜角からなる山形に形成されている。 1 and 2 show an embodiment of a toothbrush according to the present invention. In FIG. 1, 1 is a head portion, 2 is a neck portion following the head portion 1, 3 is a grip portion, and a large number of brush bundles 5 are planted on the flocked surface 4 of the head portion 1. ing. Each brush bundle 5 is formed by bundling a plurality of brushes (monofilaments) 6, and two adjacent brushes The bundles 5 and 5 form a set, and the tips of the brushes are cut into ridges, and the end faces of the brush bundles 5 and 5 are formed in a mountain shape having a predetermined inclination angle when viewed from the side.
さらに、 本実施の形態の場合、 前記山切りカットされた刷毛束 5を構成する各 刷毛 6が、 図 2に示すように、 基部側から毛先に向けてその断面積が連続的に小 さくなるテーパー部 7を備えたテーパー形状の刷毛とされている。 しかも、 図示 例の歯ブラシの場合、 山切りカットされた刷毛束 5， 5の山形の頂上に近い刷毛 6ほど、 その先端がより尖ったテーパー形状としている。  Further, in the case of the present embodiment, as shown in FIG. 2, each of the brushes 6 constituting the mountain-cut brush bundle 5 has a continuously decreasing cross-sectional area from the base side toward the bristle tip. The brush is a tapered brush having a tapered portion 7. Moreover, in the case of the toothbrush in the illustrated example, the brush 6 that is closer to the top of the chevron of the mountain-cut brush bundle 5, 5 has a taper shape with a sharper tip.
このような構成の歯ブラシとした場合、 隣り合う対の刷毛束 5 , 5が山切り力 ットされている上、 この山切りカットされた刷毛束 5， 5を構成する各刷毛 6が テーパー形状をしているため、刷毛 6の先端が歯間部の奥まで侵入しやすくなり、 歯間部の奥に付着した汚れや歯垢を効果的に除去することができる。  In the case of the toothbrush having such a configuration, adjacent pairs of brush bundles 5 and 5 have a mountain-cutting force, and each of the brushes 6 constituting the mountain-cut brush bundles 5 and 5 has a tapered shape. As a result, the tip of the brush 6 can easily penetrate deep into the interdental portion, and dirt and plaque attached to the deep portion between the interdental portions can be effectively removed.
しかも、 上記実施の形態の場合、 山切りカットされた対の刷毛束 5 , 5の山形 の頂上に近い刷毛 6ほどその先端がより尖ったテーパー形状とされているため、 山形の頂付近に位置する刷毛 6ほどより先鋭な刷毛となり、 より奥深くまで侵入 することができる。  Moreover, in the case of the above-described embodiment, the brush 6 closer to the top of the chevron of the pair of chevron cuts 5 and 5 has a taper shape with a sharper tip, so that it is located near the top of the chevron. The more brushes, the sharper the brushes, the deeper the brush can penetrate.
さらに、 各刷毛 6がテーパー形状になるため、 刷毛 6の基部側太さを通常の歯 ブラシで用いられている刷毛と同じ程度の太さとすることができる。 このため、 テーパー形状をした刷毛を用いながら、 毛腰も十分に確保することができ、 適度 な刷掃実感を得ることができる。  Further, since each brush 6 has a tapered shape, the base side thickness of the brush 6 can be set to the same thickness as a brush used in a normal toothbrush. For this reason, while using a brush having a tapered shape, a sufficient bristle can be secured, and an appropriate feeling of brushing can be obtained.
上記構成の歯ブラシを製造するには、 テーパー形状をした刷毛を所要本数束ね た刷毛束を歯ブラシへッド部の植毛面に植毛した後、 刷毛束の先端面が所望の形 状となるように刷毛束の先端を山切りカットし、 さらに、 必要に応じて、 この山 切りカツトした刷毛束を構成する刷毛の先端を毛先丸め加工したり、 あるいは、 毛先の片面もしくは両面をテーパー状にさらにグラインド加工すればよい。  In order to manufacture the toothbrush having the above configuration, a required number of tapered brushes are bundled into a bundle of brushes, and the toothbrush is implanted on the implanted surface of the head portion so that the end surface of the brush bundle has a desired shape. The end of the brush bundle is cut by a ridge, and if necessary, the end of the brush which constitutes the cut bundle of ridges is rounded, or one or both ends of the brush are tapered. Further grinding may be performed.
なお、 前記実施の形態に係る歯ブラシの場合、 ヘッド部 1の植毛面 4に植毛さ れた刷毛束 5の隣接する 2個 1対を単位として山切り力ットしたが、 山切りカツ トの方法はこれに限られるものではなく、 例えば、 図 3に示すように刷毛束 1個 ずつ単独で山切りカツトしてもよいし、 3個もしくはそれ以上の数の刷毛束単位 で山切りカットしてもよいものである。 あるいは、 植毛部全体で刷毛束を山切り カットしてもよい。 In addition, in the case of the toothbrush according to the above-described embodiment, a pair of adjacent brush bundles 5 implanted on the implanted surface 4 of the head portion 1 is subjected to mountain cutting force as a unit. The method is not limited to this.For example, as shown in Fig. 3, brush bundles may be cut individually by a single slash, or three or more brush bundles may be slashed and cut. It may be. Alternatively, cut the bunch of brushes across the planted area You may cut it.
また、 実施の形態では、 ヘッド部 1の植毛面 4に植毛されたすベての刷毛束 5 を山切りカットしたが、 山切りカットの位置はこれに限られるものではなく、 例 えば、 ヘッド部 1の先端側半部または後端側 （首部側） 半部の刷毛束のみを山切 りカットし、 あるいはへッド部 1の外周縁に沿って並んだ刷毛束のみを山切り力 ットするなど、 自由に設定できるものである。  Further, in the embodiment, all the brush bundles 5 planted on the flocked surface 4 of the head portion 1 are cut by a mountain cut. However, the position of the mountain cut is not limited to this. Cut off only the brush bundle at the front half or rear half (neck side) of section 1 or cut off only the brush bundles arranged along the outer periphery of the head section 1. Can be set freely.

Claims

請 求 の 範 囲 The scope of the claims
1 . 植毛面を備えたヘッド部と、 1. A head with a flocked surface,
該へッド部の植毛面に固定された複数の刷毛束とを含み、 各刷毛束が複数の刷 毛からなる歯ブラシにおいて、  A plurality of brush bundles fixed to the flocked surface of the head portion, wherein each brush bundle comprises a plurality of brushes,
前記複数の刷毛束の少なくとも一部は、 刷毛束毎または所定数の刷毛束からな る刷毛束群毎に刷毛先端が側方から見て山形状を呈するように刷毛先端がカツト されているとともに、  At least a part of the plurality of brush bundles has a brush tip cut so that the brush tip has a mountain shape when viewed from the side for each brush bundle or each brush bundle group including a predetermined number of brush bundles. ,
このカツトされた刷毛束の各刷毛は、 基部側から毛先に向かってその断面積が 小さくなるテーパー形状とされていることを特徴とする歯ブラシ。  A toothbrush characterized in that each of the brushes of the cut brush bundle has a tapered shape in which the cross-sectional area decreases from the base side toward the bristle tip.
2 . 前記力ットされた刷毛束は、 刷毛先端が形成する山形の頂上に近い刷毛ほ どその先端がより先鋭なテーパー形状とされている請求項 1記載の歯ブラシ。 2. The toothbrush according to claim 1, wherein the brush bundle that has been urged has a sharper tapered tip at the tip of the brush near the top of the mountain formed by the tip of the brush.
3 . 前記複数の刷毛束は、 隣接する各 1対の刷毛束の刷毛先端が山形を形成す るように配設されている請求項 1または 2記載の歯ブラシ。 3. The toothbrush according to claim 1, wherein the plurality of brush bundles are arranged such that brush tips of each pair of adjacent brush bundles form a mountain shape.
PCT/JP2001/001819 2000-04-27 2001-03-08 Toothbrush WO2001082741A1 (en)

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CN1426283A (en) 2003-06-25
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JP2001299452A (en) 2001-10-30
AU4107001A (en) 2001-11-12

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