JP2003310355A - Manufacturing method for brush - Google Patents

Manufacturing method for brush

Info

Publication number
JP2003310355A
JP2003310355A JP2003048267A JP2003048267A JP2003310355A JP 2003310355 A JP2003310355 A JP 2003310355A JP 2003048267 A JP2003048267 A JP 2003048267A JP 2003048267 A JP2003048267 A JP 2003048267A JP 2003310355 A JP2003310355 A JP 2003310355A
Authority
JP
Japan
Prior art keywords
hair
bristle
flocked
holding jig
insertion portion
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2003048267A
Other languages
Japanese (ja)
Other versions
JP4173749B2 (en
Inventor
Sukenori Saito
祐紀 斎藤
Shunji Kimura
俊次 木村
Hirobumi Moriwaka
博文 森若
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
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 Kao Corp filed Critical Kao Corp
Priority to JP2003048267A priority Critical patent/JP4173749B2/en
Publication of JP2003310355A publication Critical patent/JP2003310355A/en
Application granted granted Critical
Publication of JP4173749B2 publication Critical patent/JP4173749B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method for a brush with low cost having bristle bundles with excellent aligning property and molding property, capable of reducing the thickness of a bristle implantation base part, complying with the production of many kinds in small quantities. <P>SOLUTION: The manufacturing method for the brush comprises a process of arranging an bristle implantation base part having a plurality of implantation holes to a bristle holding tool having a concave part formed into a shape almost similar to the contour of the external shape of the bristle implantation base part, and an insertion part formed into a shape almost similar to the bristle implantation hole; and a process of forming molten lumps by inserting the bristle into the insertion part through the bristle implantation hole by making the insertion part communicate with respective bristle implantation holes, and fusing the parts of respective bristles protruding from the bristle implantation hole in a state that the bristle is held at the inside of the bristle implantation hole and the insertion part. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、ブラシの製造方法
に関わり、特に、歯ブラシの製造に好適なブラシの製造
方法及びこれに用いる用毛束保持治具に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush manufacturing method, and more particularly to a brush manufacturing method suitable for manufacturing a toothbrush and a bristle bundle holding jig used for the method.

【0002】[0002]

【従来の技術及び発明が解決しようとする課題】ブラシ
の製造方法に関する従来技術としては、例えば、下記特
許文献1に記載の技術が知られている。この技術では、
キャビティを形成する金型の一部に用毛の植毛孔を形成
しておき、植毛孔に用毛を挿入し、該キャビティ内に樹
脂を充填して植毛するものである。
2. Description of the Related Art As a conventional technique relating to a brush manufacturing method, for example, a technique described in Patent Document 1 below is known. With this technology,
A hair-implanting hole for hairs is formed in a part of a mold that forms a cavity, the hairs are inserted into the hair-implanting hole, and resin is filled into the cavity for hair-implanting.

【0003】この技術は、金型に設けた植毛孔に直接用
毛を挿入して成形を行うため、溶融樹脂が用毛間に滲み
出してバリができて成形不良を起こしやすいものであっ
た。この問題を解決するために、用毛束の根元の部分を
囲繞するように環状凹部を形成することも試みられてい
るが、歯ブラシの最終形態として、植毛基部を薄くする
場合には強度低下を招くほか、該環状凹部に水等が溜ま
りやすくなるため、不衛生であった。また、成形に用い
る高価な金型(下記特許文献1においては、「インサー
ト」)を多数必要とするため、該技術は、多品種少量生
産を行うには不向きであった。
In this technique, since the hairs are directly inserted into the hair-implanting holes formed in the mold for molding, the molten resin exudes between the hairs to form burrs, which easily causes molding failure. . In order to solve this problem, it has also been attempted to form an annular recess so as to surround the root portion of the bristle bundle, but as the final form of the toothbrush, when the flocked base is thinned, the strength is reduced. In addition to this, water and the like tend to accumulate in the annular recess, which is unsanitary. In addition, since a large number of expensive dies used for molding (in the following Patent Document 1, "insert") are required, this technique is not suitable for high-mix low-volume production.

【0004】一方、下記特許文献2には、内部に空間を
有する受け型に、該空間を覆うように植毛孔を有する基
板を配しておき、該植毛孔に用毛を挿入して切断した後
に、用毛の切断端部を溶融させて溶融塊を形成し、該溶
融塊を覆うように裏蓋をはめ込んで植毛部を形成するも
のである。
On the other hand, in the following Patent Document 2, a receiving mold having a space inside is provided with a substrate having a hair-implanting hole so as to cover the space, and hair is inserted into the hair-implanting hole and cut. After that, the cut ends of the bristles are melted to form a molten mass, and the back cover is fitted so as to cover the molten mass to form the flocked portion.

【0005】しかしながら、この技術では、植毛孔の端
に用毛を挿入しているだけであるため、溶融塊の形成の
際に用毛束の毛先が広がり易く、特に植毛基部を薄くす
る場合にはこの傾向が強くなり、好ましくなかった。ま
た、受け型内の空間を覆うように基板を配しているた
め、前記溶融塊を覆うように射出成形によって植毛部を
成形する場合には、受け型をそのまま用いることは基板
の強度的にも不可能であり、溶融塊を形成した後に基板
を移し替える必要が生じ、生産効率が低くなる問題もあ
った。
However, in this technique, since the hairs are only inserted at the ends of the hair-implanting holes, the tips of the hair bundles tend to spread during the formation of the molten mass, and especially when the base of the hairs is thinned. This tendency became stronger, which was not preferable. Further, since the substrate is arranged so as to cover the space inside the receiving die, when the bristle portion is formed by injection molding so as to cover the molten mass, it is not necessary to use the receiving die as it is because of the strength of the substrate. However, there is also a problem that the production efficiency is lowered because it is necessary to transfer the substrate after forming the molten mass.

【0006】[0006]

【特許文献1】特表2001−513685号公報[Patent Document 1] Japanese Patent Publication No. 2001-513685

【特許文献2】特公昭50−14465号公報[Patent Document 2] Japanese Patent Publication No. 50-14465

【0007】従って、本発明の目的は、用毛束の整列
性、成形性に優れ、低コストで、植毛基部の薄型化や多
品種少量生産にも対応することができるブラシの製造方
法及び該方法に用いて好適な用毛束保持治具を提供する
ことにある。
Therefore, an object of the present invention is to provide a method for manufacturing a brush, which is excellent in alignment and moldability of a hair bundle, is low in cost, and can be applied to thinning of a bristle bristle base and small-lot production of various kinds, and It is to provide a suitable hair bundle holding jig for use in the method.

【0008】[0008]

【課題を解決するための手段】本発明は、植毛孔を複数
有する植毛基部を、該植毛基部の外形の輪郭と略同等形
状に形成された凹部及び該植毛孔と略同等形状に形成さ
れた挿入部を有する用毛保持治具に配し、前記挿入部と
前記各植毛孔とを通じさせて該植毛孔を介して該挿入部
に用毛を挿入し、該植毛孔及び該挿入部内に該用毛を保
持した状態で、該各用毛における該植毛孔から突出する
部分を溶融させて溶融塊を形成する工程を具備している
ブラシの製造方法を提供することにより、前記目的を達
成したものである。
According to the present invention, a hair-implanted base having a plurality of hair-implanted holes is formed in a recessed portion formed in a shape substantially equivalent to the contour of the outer shape of the hair-implanted base, and in a shape substantially equivalent to the hair-implanted hole. The hair is placed in a hair-holding jig having an insertion portion, and the hair is inserted into the insertion portion through the insertion portion and each of the hair-implanted holes, and the hair-implanted hole and the insertion portion are The above object was achieved by providing a method for manufacturing a brush, which comprises a step of melting a portion of each of the hairs protruding from the tufting hole while holding the hairs to form a molten mass. It is a thing.

【0009】また、本発明は、複数の植毛孔を有する植
毛基部が配される台座部と、前記台座部に配された前記
植毛基部を位置決めする位置決め手段とを備えており、
前記台座部は、前記植毛基部が該台座部に位置決めされ
たときに前記各植毛孔にそれぞれ連通する用毛の挿入部
を有しているとともに、前記各植毛孔を通じて前記各挿
入部に挿入された用毛を保持する用毛保持機構を備えて
いる用毛束保持治具を提供することにより、前記目的を
達成したものである。
Further, the present invention comprises a pedestal portion on which a flocked base portion having a plurality of flocked holes is arranged, and a positioning means for positioning the flocked base portion arranged on the pedestal portion,
The pedestal portion has an insertion portion for hair that communicates with each of the tufting holes when the tufting base portion is positioned on the pedestal portion, and is inserted into each of the insertion portions through the tufting holes. The above object is achieved by providing a hair bundle holding jig provided with a hair holding mechanism for holding hair.

【0010】[0010]

【発明の実施の形態】以下、本発明を、その好ましい実
施形態に基づいて、図面を参照しながら説明する。
BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described based on its preferred embodiments with reference to the drawings.

【0011】図1は、本発明の用毛束保持治具の一実施
形態を示すものである。図1において、符号1は用毛束
保持治具、11は歯ブラシ本体、12は植毛基部を示し
ている。
FIG. 1 shows an embodiment of a hair bundle holding jig for use in the present invention. In FIG. 1, reference numeral 1 is a bristle bundle holding jig, 11 is a toothbrush body, and 12 is a flocked base.

【0012】図1に示すように、用毛束保持治具1は、
複数の植毛孔12a(図2参照)を有する植毛基部12
が配される台座部2と、台座部2に配された植毛基部1
2を位置決めする位置決め手段3とを備えている。
As shown in FIG. 1, the hair bundle holding jig 1 for
Flocked base 12 having a plurality of flocked holes 12a (see FIG. 2)
And a flocking base 1 arranged on the base 2.
And a positioning means 3 for positioning 2.

【0013】図2に示すように、台座部2は、植毛基部
12が台座部2に位置決めされたときに前記各植毛孔1
2aにそれぞれ連通する用毛の挿入部20を複数有して
いるとともに、各植毛孔12aを通じて前記各挿入部2
0に挿入された用毛13を保持する用毛保持機構4を備
えている。
As shown in FIG. 2, the pedestal portion 2 has the above-mentioned flock holes 1 when the flocked base 12 is positioned on the pedestal portion 2.
2a includes a plurality of hair insertion portions 20 that communicate with each other, and the insertion portions 2 are inserted through the hair transplant holes 12a.
The hair-holding mechanism 4 for holding the hair 13 inserted in 0 is provided.

【0014】台座部2は、挿入部20を用毛13の挿入
方向において分断するように3分割可能に設けられてい
る。本実施形態では、台座部2は、上板部20aと、そ
の下方に配された中板部20bと、さらにその下方に固
定された下板部20cとが分割可能に設けられている。
The pedestal portion 2 is provided so as to be divided into three parts so as to divide the insertion portion 20 in the insertion direction of the bristle 13. In this embodiment, the pedestal portion 2 is provided with an upper plate portion 20a, an intermediate plate portion 20b arranged below the upper plate portion 20a, and a lower plate portion 20c fixed below the upper plate portion 20a so as to be separable.

【0015】上板部20aには、植毛基部12の外形に
対応した凹部30が設けられている。中板部20bは、
上板部20aと下板部20cとの間で所定範囲でスライ
ド可能に弾性部材(図示せず)を介して配されており、
通常は、この弾性部材の弾性力によって挿入部20が断
続されるように付勢されている。前記弾性部材には、ス
プリング、板バネ等の公知のものを用いることができ
る。下板部20c内には前記挿入部20の先端部が形成
されており、この部分を取り替えることによって、挿入
部20の挿入方向はそのままで、先端形状のみを変更で
きるようになっている。
The upper plate portion 20a is provided with a concave portion 30 corresponding to the outer shape of the flocked base portion 12. The middle plate portion 20b is
The upper plate portion 20a and the lower plate portion 20c are slidably arranged in a predetermined range via an elastic member (not shown),
Normally, the elastic force of this elastic member is urged so that the insertion portion 20 is intermittently connected. A known material such as a spring or a leaf spring can be used as the elastic member. A tip portion of the insertion portion 20 is formed in the lower plate portion 20c, and by replacing this portion, only the tip shape can be changed while the insertion direction of the insertion portion 20 remains unchanged.

【0016】前記挿入部20は、前記植毛基部12の植
毛孔12aに連通するように植毛孔12aの挿入方向と
同方向に挿入方向が設けられている。挿入部20の挿入
口は、上方に向けてテーパー状に漸次拡開するように設
けられており、植毛孔12aを通じて用毛13を挿入す
る際に、植毛孔12aと挿入部20の位置決めが正確に
なされていなくても用毛の挿入がスムーズに行え、また
その際の用毛の引っかかりも防止できるようになってい
る。
The insertion portion 20 is provided with an insertion direction in the same direction as the insertion direction of the flocked holes 12a so as to communicate with the flocked holes 12a of the flocked base portion 12. The insertion opening of the insertion portion 20 is provided so as to gradually expand upward in a tapered shape, and when the hair 13 is inserted through the hair implantation hole 12a, positioning of the hair implantation hole 12a and the insertion portion 20 is accurate. Even if it is not done, the hair can be inserted smoothly and the hair can be prevented from being caught at that time.

【0017】植毛基部12を位置決めする前記位置決め
用の凹部30は、植毛基部12を用毛束保持治具1に確
実に位置決めして固定を行うために、植毛基部12の外
形と相似形の形状を有していることが好ましく、大きさ
は植毛基部よりも0.05〜0.2mm大きくすること
が好ましい。前記位置決め用の前記凹部30は、植毛基
部12に対応して位置決め精度以上で立体的に形成され
ていること好ましいが、その他形態として、凸形状で位
置決め用の部分的な壁面で2点若しくは3点での固定、
又は凹部と凸部の組合せ等の形態を適且選択可能であ
る。
The positioning recess 30 for positioning the bristle bristle base 12 has a shape similar to that of the bristle bristle base 12 in order to reliably position and fix the bristle bristle base 12 to the bristle bundle holding jig 1. And the size is preferably 0.05 to 0.2 mm larger than the flocked base. It is preferable that the positioning concave portion 30 is formed three-dimensionally with a positioning accuracy or higher corresponding to the flocked base portion 12, but as another form, it is a convex shape and has two or three points on the positioning partial wall surface. Fixation at points,
Alternatively, a form such as a combination of a concave portion and a convex portion can be appropriately selected.

【0018】挿入部(先端部を除く)20の挿入方向に
直交する方向の断面形状は、植毛孔12aの挿入方向に
直交する方向の断面形状と相似形状に設けられている。
挿入部(テーパー部を除く)20は、その内周と植毛孔
12aの内周の間に0.05〜0.2mmの隙間を有す
るように植毛孔12aよりも広く設けることが好まし
い。0.05mm未満では、植毛基部の位置決め精度の
ふれによって実質的に挿入面積が狭くなりすぎてしま
い、用毛の挿入ミスや毛立ちの不良が発生する場合があ
る。また、0.2mmを超えると、用毛の保持力が不十
分となり、用毛先端部の整列形態が広がり易くなる。
The cross-sectional shape of the insertion portion (excluding the tip) 20 in the direction orthogonal to the insertion direction is similar to the cross-sectional shape in the direction orthogonal to the insertion direction of the hair-implanting holes 12a.
The insertion portion (excluding the taper portion) 20 is preferably provided wider than the flock hole 12a so as to have a gap of 0.05 to 0.2 mm between the inner circumference of the insertion part 20 and the inner circumference of the flock hole 12a. If the thickness is less than 0.05 mm, the insertion area may be substantially too small due to the deviation of the positioning accuracy of the bristle-implanting base, which may result in erroneous insertion of the bristle or defective hair raising. On the other hand, if it exceeds 0.2 mm, the holding force of the bristle becomes insufficient, and the alignment form of the bristle tip portion tends to spread.

【0019】また、挿入部20の中の用毛束密度は用毛
束の形状を保持する上で40〜75%にすることが好ま
しく、特に50〜70%にすることが好ましい。該用毛
束密度が40%未満であると、溶融塊の形成や射出成形
により溶融塊を被覆する工程において、用毛束先端が広
がる等の用毛の乱れが生じやすい。用毛束密度が75%
を超えると、用毛束の挿入時に用毛束の各用毛が長さ方
向に相対的にずれて用毛束先端の形態を正確に形成する
ことができなかったり、用毛の一部が折れ曲がり挿入時
の不具合が発生しやすい。なお、前記の用毛束密度は、
挿入部20の長さ方向に直交する断面積を、挿入部20
に挿入される各用毛の長さ方向に直交する断面積の総和
で除した値をいう。
The hair bundle density in the insertion portion 20 is preferably 40 to 75%, and particularly preferably 50 to 70%, in order to maintain the shape of the hair bundle. If the density of the hair bundle is less than 40%, the hair is likely to be disturbed such as the tip of the hair bundle being spread in the step of forming the molten mass or coating the molten mass by injection molding. Hair bundle density is 75%
When it exceeds the above, each hair of the hair bundle is relatively displaced in the length direction when the hair bundle is inserted, and the shape of the tip of the hair bundle cannot be accurately formed, or a part of the hair is It is easy to cause a problem when bending and inserting. The hair bundle density for the above is
The cross-sectional area orthogonal to the length direction of the insertion portion 20 is calculated as
The value is divided by the sum of the cross-sectional areas orthogonal to the length direction of each hair to be inserted into.

【0020】図3に示すように、一部の前記各挿入部2
0の前記用毛13の挿入方向における先端部20dは、
挿入される前記各用毛13の先端部を所定の整列形態に
整列させる形状に設けられている。
As shown in FIG. 3, a part of each of the insertion portions 2 is provided.
The tip portion 20d in the insertion direction of the bristles 13 of 0 is
The bristle 13 to be inserted is provided in a shape that aligns the tips of the bristles 13 into a predetermined alignment form.

【0021】前記位置決め手段3は、本実施形態では、
前記位置決め用の凹部30と、前記歯ブラシ本体11の
ネック部分を固定するロックアーム31とを備えてお
り、ブラシ本体11を確実に保持し、各挿入部20と各
植毛孔12aとを精度良く連結する。このロックアーム
31は、アーム31aと、アーム31aを支持するロッ
クピン31bとを備えており、ロックピン31bを中心
にアーム31aが回転する機構(図示せず)及びアーム
31aの上下動を可能とする上下動機構(図示せず)が
配置されている。
The positioning means 3 in this embodiment is
The positioning recess 30 and the lock arm 31 for fixing the neck portion of the toothbrush main body 11 are provided to securely hold the brush main body 11 and accurately connect the insertion portions 20 and the flock holes 12a. To do. The lock arm 31 includes an arm 31a and a lock pin 31b that supports the arm 31a, and a mechanism (not shown) for rotating the arm 31a around the lock pin 31b and the arm 31a can be moved up and down. A vertical movement mechanism (not shown) is arranged.

【0022】ブラシ本体11を用毛保持治具1に装着す
る場合は、ロックアーム31をブラシ本体11の装着に
支障が無いように回転移動させ、ブラシ本体11を装着
した後は、所定位置にロックアーム31を戻し、ブラシ
本体11をロックアーム31で固定する。前記固定は、
前記上下動機構によりアーム31aを降下させてブラシ
本体11を押さえつけて行う。
When the brush main body 11 is mounted on the bristle holding jig 1, the lock arm 31 is rotationally moved so as not to interfere with the mounting of the brush main body 11, and after the brush main body 11 is mounted, it is moved to a predetermined position. The lock arm 31 is returned and the brush body 11 is fixed by the lock arm 31. The fixing is
The vertical movement mechanism lowers the arm 31a and presses the brush body 11 to perform the operation.

【0023】前記用毛保持機構4は、分割された前記中
板部20bを前記各挿入部20に挿入された前記用毛1
3に対してせん断方向に移動させて各用毛13を保持す
るように設けられている。中板部20bの厚みは、挿入
された用毛の長さに対して、30〜60%であることが
好ましい。中板部20bが厚すぎると用毛の長手方向中
央の比較的自由度のある位置をせん断保持できず、保持
状態が不安定となる場合があり、薄すぎると用毛に対
し、大きな剪断力がかかり、用毛の変形や傷つきが発生
する場合がある。
The bristle holding mechanism 4 includes the bristle 1 in which the divided middle plate portion 20b is inserted into each of the insertion portions 20.
It is provided so as to move in the shear direction with respect to 3 and hold each hair 13. The thickness of the middle plate portion 20b is preferably 30 to 60% with respect to the length of the inserted hair. If the middle plate portion 20b is too thick, the position in the longitudinal center of the bristle having a relatively large degree of freedom cannot be held by shearing, and the holding state may become unstable. If it is too thin, a large shearing force is applied to the bristle. The hair may be deformed or scratched.

【0024】本実施形態では、前記中板部20bを弾性
部材(図示せず)の弾性力で付勢させることによって、
前記上板部20aとの間で前記挿入部20内に挿入され
た用毛13にせん断方向に挟持力を作用させて当該用毛
13を保持できるようになっている。中板部20bを付
勢させる弾性力は、1〜5N程度あれば十分である。ま
た、本実施形態では、用毛束保持治具の一部のパーツで
ある上板部20a、中板部20b、下板部20c及び後
述の先端部20dの一部またはすべてを変更すること
で、植毛基部12、植毛パターン、用毛束の長さや太
さ、用毛先端部の整列形態などを低コストで容易に変更
することができる。
In this embodiment, the middle plate portion 20b is urged by the elastic force of an elastic member (not shown),
Between the upper plate portion 20a and the bristle 13 inserted into the insertion portion 20, a clamping force is applied in the shearing direction to hold the bristle 13. It is sufficient that the elastic force for urging the middle plate portion 20b is about 1 to 5N. Further, in the present embodiment, by changing a part or all of the upper plate portion 20a, the middle plate portion 20b, the lower plate portion 20c, and the below-mentioned tip portion 20d, which are some parts of the hair bundle holding jig. The flocked base 12, the flocked pattern, the length and thickness of the bristle tufts, the arrangement of the bristle tips can be easily changed at low cost.

【0025】次に、本発明のブラシの製造方法を、その
好ましい実施形態として、前記用毛束保持治具1を用い
た歯ブラシの製造方法に基づいて説明する。
Next, a method for manufacturing a brush of the present invention will be described as a preferred embodiment based on a method for manufacturing a toothbrush using the above-mentioned bristle bundle holding jig 1.

【0026】先ず、図1及び図2に示すように、前記植
毛基部12を先端部に有する歯ブラシ本体11を、当該
植毛基部12を台座部2の上板部20aの上に配し、前
記位置決め手段のアーム31aで固定する。そして、前
記中板部20bを前記弾性部材の弾性力に対向して押圧
してスライドさせ、各挿入部20と前記各植毛孔12a
とを通じさせる。
First, as shown in FIGS. 1 and 2, the toothbrush main body 11 having the bristle-implanted base portion 12 at its tip portion is placed on the upper plate portion 20a of the pedestal portion 2 and the positioning is performed. It is fixed by the arm 31a of the means. Then, the middle plate portion 20b is pressed and slid against the elastic force of the elastic member, so that each insertion portion 20 and each hair implantation hole 12a.
Through.

【0027】次に、図2に示すように、所定長さに切断
された所定本数の用毛13を予めスリーブ14に(用毛
の導入部)に導入し、押出ピン15で用毛13を押し出
して植毛孔12a及び挿入部20に挿入する。このよう
に、用毛13を植毛基部12の植毛孔側から挿入するこ
とには、以下の(1)〜(3)点で好ましい。 (1)植毛孔の用毛束保持治具側にテーパーを設ける必
要がないので、水分等が溜まらないため衛生的で、肉厚
減少による植毛基部の強度低下や成形の際の樹脂漏れが
生じにくい。 (2)挿入部の挿入方向に直交する方向の断面と、植毛
孔の挿入方向に直交する方向の断面の大きさを最適な状
態に設定しやすいので、挿入時の挿入抵抗、溶融塊形成
工程や射出成形工程で用毛束に作用する力の影響による
用毛束の乱れが生じにくく、また挿入ミスも生じにく
い。 (3)本実施形態におけるスリーブによる用毛束挿入方
向と植毛孔及び挿入部の挿入方向が傾斜している場合に
は、挿入部内での用毛束が屈曲した状態で溶融塊形成工
程が行われることがないので、最終製品の用毛束の配向
状態と整列状態をより良くすることができる。
Next, as shown in FIG. 2, a predetermined number of bristles 13 cut to a predetermined length are introduced in advance into the sleeve 14 (introduction part of the bristles), and the bristles 13 are pushed by the push pin 15. It is pushed out and inserted into the hair-implanted hole 12a and the insertion portion 20. In this way, it is preferable to insert the bristles 13 from the flocked hole side of the flocked base 12 in the following points (1) to (3). (1) Since it is not necessary to provide a taper on the hair bundle holding jig side of the flocked hole, moisture is not accumulated, which is sanitary, and the flocked base part has a reduced strength due to a decrease in wall thickness and resin leakage during molding occurs. Hateful. (2) Since it is easy to set the size of the cross section in the direction orthogonal to the insertion direction of the insertion portion and the size of the cross section in the direction orthogonal to the insertion direction of the flocked holes to the optimum state, the insertion resistance at the time of insertion and the molten lump formation step Also, the hair bundle is less likely to be disturbed due to the influence of the force acting on the hair bundle in the injection molding process, and the insertion error is less likely to occur. (3) When the hair bundle insertion direction by the sleeve in this embodiment and the insertion direction of the tufting hole and the insertion portion are inclined, the molten mass forming step is performed with the hair bundle inside the insertion portion bent. Since it is not exposed, the orientation and alignment of the tuft of the final product can be improved.

【0028】用毛13には、従来から歯ブラシの用毛に
用いられている通常の材質、形態のものを特に制限なく
用いることができる。用毛13の材質としては、ナイロ
ン等のポリアミド、ポリブチレンテレフタレート、ポリ
トリメチレンテレフタレート等のポリエステルが挙げら
れる。用毛13の長さは、5〜20mmであることが好
ましく、8〜18mmであることがより好ましい。用毛
13の太さは、6〜10mil(127〜254μm)
であることが好ましく、7〜9mil(178〜229
μm)であることがより好ましい。
The bristle 13 may be made of the usual materials and forms conventionally used for toothbrush bristle, without any particular limitation. Examples of the material of the bristles 13 include polyamide such as nylon, polyester such as polybutylene terephthalate and polytrimethylene terephthalate. The length of the bristles 13 is preferably 5 to 20 mm, more preferably 8 to 18 mm. The thickness of the bristle 13 is 6 to 10 mil (127 to 254 μm)
Is preferable, and 7 to 9 mil (178 to 229)
μm) is more preferable.

【0029】本実施形態では、スリーブ14の外表面
は、当該ノズル部を用毛の集合に差し込む際の抵抗を抑
える点から、無電解メッキを施したり、ポリテトラフル
オロエチレン樹脂等で表面加工を施す等することによっ
て、表面を潤滑に仕上げることが好ましい。
In the present embodiment, the outer surface of the sleeve 14 is subjected to electroless plating or surface treatment with polytetrafluoroethylene resin or the like in order to suppress resistance when the nozzle portion is inserted into the bristle assembly. It is preferable to finish the surface by lubrication by applying it.

【0030】図3に示すように、押出ピン15には、そ
の先端部15aが、挿入部20の先端部の形状に対応し
た形状に設けられたものを用いることが好ましい。そし
て、この押出ピン15をスリーブ14内に挿入し用毛1
3を押し出すときに、押出ピン15の先端部15aによ
って用毛13の後端部を整列させ、用毛13の先端部を
予め整列させた上で前記植毛孔12aを通じて挿入部2
0に挿入する。このように用毛13を挿入部20に挿入
する前に予めその先端部の整列形態を整列させておくこ
とによって、用毛13の先端部の整列形態を挿入部20
の先端部20dに対応した所望の形態とすることができ
る。
As shown in FIG. 3, the extruding pin 15 is preferably provided with a tip portion 15a thereof having a shape corresponding to the shape of the tip portion of the insertion portion 20. Then, the push pin 15 is inserted into the sleeve 14 to insert the hair 1
When pushing out 3, the rear end of the hair 13 is aligned by the tip 15a of the push pin 15, the tip of the hair 13 is aligned in advance, and then the insertion portion 2 is inserted through the hair-implanting hole 12a.
Insert at 0. In this way, by aligning the alignment form of the tips of the hairs 13 before inserting the hairs 13 into the insertion part 20, the alignment form of the tips of the hairs 13 can be changed.
It can have a desired shape corresponding to the tip portion 20d of the.

【0031】一つの挿入部20についての用毛13の挿
入が完了した後、次に用毛13を挿入する挿入部20が
挿入位置に位置決め決めされるように前記用毛束保持治
具1を移動させた後、上記の手順で用毛13の挿入を行
う。そして、全ての挿入部20への用毛13の挿入を終
えたら、前記用毛保持機構4による前記中板部20bの
押圧を解き、各挿入部20に挿入された用毛13を保持
する。
After the insertion of the bristle 13 for one insertion portion 20 is completed, the bristle bundle holding jig 1 is set so that the insertion portion 20 for inserting the next bristle 13 is positioned at the insertion position. After moving, the hair 13 is inserted by the above procedure. Then, when the insertion of the bristle 13 into all the insertion portions 20 is completed, the pressing of the middle plate portion 20b by the bristle holding mechanism 4 is released, and the bristle 13 inserted into each insertion portion 20 is held.

【0032】次に、図4(a)に示すように、用毛束保
持治具1を歯ブラシ本体11とともに溶融魂を形成する
工程に移送して位置決めする。そして、前記用毛13に
おける前記植毛孔12aから突出する部分を熱源5によ
って溶融させ、図4(b)に示すように、植毛孔12a
を塞いで溶融塊130を形成する。熱源5の種類に特に
制限はないが、溶融塊を個々に形成できる点から、レー
ザー光、ハロゲン光源を用いたヒーター、超音波等を用
いることが好ましい。溶融塊130は、単独で形成して
もよいし、隣接する溶融塊どうしを連結させてもよい。
Next, as shown in FIG. 4A, the bristle bundle holding jig 1 is transferred together with the toothbrush body 11 to the step of forming a molten soul and positioned. Then, the portion of the bristle 13 protruding from the flock hole 12a is melted by the heat source 5, and as shown in FIG. 4 (b), the flock hole 12a.
To form a molten mass 130. The type of the heat source 5 is not particularly limited, but it is preferable to use laser light, a heater using a halogen light source, ultrasonic waves, or the like from the viewpoint that molten mass can be formed individually. The molten mass 130 may be formed alone, or adjacent molten masses may be connected to each other.

【0033】本実施形態では、植毛基部12を用いるた
め、溶融樹脂が仮にもれた場合でも植毛孔12a内で留
まり、製品の外観を損なうことがない。また、植毛孔1
2aの挿入口が上方に向けて漸次拡開されてテーパー状
に設けられているため、この部分を利用して溶融塊13
0を形成することで、植毛基部12を薄くした場合にも
用毛の毛立ちの安定性を得ることができる。また、溶融
塊130を形成する場合にも、前記用毛保持機構4によ
って用毛が挟持固定されているため、溶融塊130の形
成に伴う用毛のずれを抑えることができ、得られる用毛
先端部の整列形態を良好なものとすることができる。
In the present embodiment, since the flocked base portion 12 is used, even if the molten resin is temporarily lost, it stays in the flocked holes 12a and does not impair the appearance of the product. In addition, 1
Since the insertion port of 2a is gradually expanded upward and provided in a tapered shape, the molten mass 13 is utilized by utilizing this portion.
By forming 0, it is possible to obtain the stability of hair fluffing even when the hair-implanted base 12 is thin. Further, even when forming the molten mass 130, since the hair is clamped and fixed by the hair holding mechanism 4, it is possible to suppress the displacement of the hair due to the formation of the molten mass 130, and obtain the hair. The alignment form of the tip portion can be made favorable.

【0034】次に、形成された前記溶融塊130を被覆
して植毛部(ヘッド)を形成する。本実施形態では、図
5に示すように、ブラシ本体11を前記用毛束保持治具
1とともに成形装置6の金型60に対して位置決めす
る。この際、金型60で植毛基部12を押圧し、植毛基
部120を弾性変形若しくは塑性変形させて植毛基部と
金型60との間の密閉性を高めることで、高い射出圧力
で成形を行うことができる。この密閉性をより高める上
で、植毛基部12の背面の凹部12bの開口縁部は、フ
ラットに設けておくことが好ましい。
Next, the fused mass 130 thus formed is coated to form a flocked portion (head). In this embodiment, as shown in FIG. 5, the brush main body 11 is positioned with respect to the mold 60 of the molding apparatus 6 together with the bristle bundle holding jig 1. At this time, the flocked base 12 is pressed by the mold 60 to elastically or plastically deform the flocked base 120 to enhance the sealing property between the flocked base and the mold 60, thereby performing molding with a high injection pressure. You can In order to further improve the airtightness, it is preferable that the opening edge of the recess 12b on the back surface of the flocked base 12 be provided flat.

【0035】上述のように用毛束保持治具1を成形装置
6の金型60に対して位置決めした後、充填装置7から
注入口61を通じて植毛基部12と金型60との間に充
填材を射出する。そして、前記溶融塊130を被覆被覆
して植毛部(ヘッド)110を成形し、植毛基部12に
用毛13を固定化する。
After positioning the hair bundle holding jig 1 with respect to the mold 60 of the molding apparatus 6 as described above, the filling material is inserted between the flocking base 12 and the mold 60 from the filling apparatus 7 through the injection port 61. Inject. Then, the melted mass 130 is coated and coated to form a flocked part (head) 110, and the bristles 13 are fixed to the flocked base part 12.

【0036】、充填材には、前記植毛基部12と同種の
材料を用いることが好ましい。このような材料として
は、ポリエチレン樹脂、アクリロニトリル−スチレン共
重合体、アクリロニトリル−ブタジエン−スチレン重合
体、ポリカーボネート、ポリメチルメタアクリレート等
が挙げられる。
As the filling material, it is preferable to use the same material as that of the flocked base portion 12. Examples of such a material include polyethylene resin, acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene polymer, polycarbonate, polymethylmethacrylate and the like.

【0037】植毛基部12に対して所望の接着性が得ら
れる材料であれば、植毛基部12と充填材とを異なる材
料で成形するもできる。この場合には、充填材は、植毛
基部12や前記溶融塊130との間の接着性を考慮し、
これらの間との熱接着性や化学的接着性のよい材料を選
択することが好ましい。また、植毛基部12を温めた
り、金型を高温にして熱接着性を高めたり、充填材自体
の注入時の溶融温度を高めたりすることも接着性の向上
に有効である。さらに、植毛基部12の表面に、コロナ
放電処理やプラズマ放電処理を施したり、プライマー剤
を塗工する等の処理を施した後、充填材を注入する方法
も接着性の向上に有効である。
The flocked base 12 and the filling material can be formed of different materials as long as the material has a desired adhesiveness to the flocked base 12. In this case, the filler considers the adhesiveness between the flocked base 12 and the molten mass 130,
It is preferable to select a material having good thermal adhesiveness and chemical adhesiveness between these. It is also effective to improve the adhesiveness by warming the flocked base 12, raising the temperature of the mold to enhance the thermal adhesiveness, and raising the melting temperature at the time of injecting the filler itself. Further, it is also effective to improve the adhesiveness by injecting the filler after the surface of the flocked base 12 is subjected to a corona discharge treatment or a plasma discharge treatment or a treatment such as coating with a primer agent.

【0038】このようにして植毛基部12と異なる材料
の充填材を用いた場合には、得られる歯ブラシに種々の
特徴を付与することができる。例えば、植毛基部12に
ポリプロピレン樹脂を用い、充填材に熱可塑性エラスト
マーを用いることで、得られる歯ブラシに弾力性を付与
することもできる。また、植毛基部12と充填材とで着
色を変えることで、外観性に特徴を付与することもでき
る。
In this way, when the filler made of a material different from that of the flocked base 12 is used, various characteristics can be imparted to the obtained toothbrush. For example, by using polypropylene resin for the flocked base 12 and using a thermoplastic elastomer for the filler, elasticity can be imparted to the obtained toothbrush. Further, by changing the coloring between the flocked base 12 and the filler, it is possible to give the appearance a characteristic.

【0039】本実施形態では、前記溶融塊130によっ
て植毛孔12aが塞がれているため、溶融樹脂のもれが
防止され、溶融樹脂が仮にもれた場合でも植毛孔12a
内にとどめられ、製品の外観を損なうことがない。
In this embodiment, since the flocked holes 12a are closed by the molten mass 130, leakage of the molten resin is prevented, and even if the molten resin is temporarily leaked, the flocked holes 12a are prevented.
It is kept inside and does not spoil the appearance of the product.

【0040】また、本実施形態では、植毛基部12が用
毛保持治具1の台座部2の上面に設けた凹部30内に配
されて安定的に支持され、且つ、個々の用毛束を前記用
毛保持機構4に保持しているので、植毛基部12を薄く
した場合でも、植毛基部12を用毛保持治具1で保持可
能であり、射出圧力による植毛基部12の撓みなどを抑
えることができる。また、用毛束の整列性に対しても効
果がある。このため、植毛部のより薄い歯ブラシの製造
が可能である。
Further, in this embodiment, the bristle bristle base 12 is placed in the recess 30 provided on the upper surface of the pedestal 2 of the bristle holding jig 1 to be stably supported, and the individual bristle bundles are Since the bristle-holding mechanism 4 holds the bristle-holding mechanism 4, the bristle-holding base 12 can be held by the bristle-holding jig 1 even when the bristle-bristing base 12 is made thin, and bending of the bristle-fixing base 12 due to injection pressure can be suppressed. You can It is also effective for the alignment of the tufts. Therefore, it is possible to manufacture a toothbrush with a thinner bristle portion.

【0041】また、本実施形態では、植毛基部12と成
形装置の金型60との間に充填材を射出して前記溶融塊
を被覆するので、植毛基部、溶融塊に隙間無く充填材が
注入されて植毛基部及び溶融塊と固化一体化される。こ
のため、植毛基部に板状のプラスチック部材を貼り付け
て被覆する方法(図示せず)等に比べて、植毛部(ヘッ
ド)の内部に空間が発生せず、歯磨き時に水分がヘッド
内に入り込むことがないので、衛生的である。
Further, in this embodiment, since the filler is injected between the flocked base 12 and the mold 60 of the molding device to cover the molten mass, the filler is injected into the flocked base and the molten mass without any gap. Then, the flocked base and the molten mass are solidified and integrated. Therefore, compared to a method (not shown) in which a plate-shaped plastic member is attached to the flocked base to cover it, a space is not generated inside the flocked part (head), and moisture enters the head when brushing teeth. It is hygienic because it never happens.

【0042】射出成形の終了後、前記用毛保持機構4に
よる用毛13の保持を解き、前記金型を離型する。そし
て、前記位置決め手段3によるブラシ本体11の固定を
解いて、図6に示すように、歯ブラシ10を用毛保持治
具1から取り外す。必要に応じてトリミング等の後工程
の処理を行った後、歯ブラシの製造を完了する。
After the injection molding is completed, the holding of the bristle 13 by the bristle holding mechanism 4 is released, and the mold is released. Then, the fixing of the brush main body 11 by the positioning means 3 is released, and the toothbrush 10 is removed from the bristle holding jig 1 as shown in FIG. After performing post-processes such as trimming as necessary, the manufacturing of the toothbrush is completed.

【0043】また、用毛束保持治具1は、成形金型に比
べて厳しい精度を必要としないため、アルミニウム等の
素材で安価に製作が可能である。更に用毛束保持治具1
は成形金型よりも小型で軽量であるため、工程間の搬送
が成形金型よりも簡便である。よって用毛束保持治具1
を多数用い、各用毛束保持治具に植毛基部を配して固定
した状態で、用毛の挿入工程から植毛部の成形までの各
工程に応じた必要量を供給することで、設備全体の能力
を最大限に発揮させることができる。また、モデルチェ
ンジの際等において、各工程で生じた生産能力の違いを
吸収させることができるなどフレキシビリティに富んだ
生産システムを構築することができる。
Further, the hair bundle holding jig 1 does not require strict accuracy as compared with the molding die, and therefore can be manufactured at a low cost with a material such as aluminum. Further for hair bundle holding jig 1
Since is smaller and lighter than the molding die, it is easier to convey between steps than the molding die. Therefore, the hair bundle holding jig 1 for
By using a large number of, and fixing the hair transplant base to each hair bundle holding jig, by supplying the necessary amount according to each step from the hair inserting step to the hair transplant forming, the entire equipment can be You can maximize your ability. In addition, it is possible to build a flexible production system in which it is possible to absorb the difference in production capacity that has occurred in each process when the model is changed.

【0044】以上説明したように、本実施形態の用毛束
保持治具1及びこれを用いた歯ブラシの製造方法によれ
ば、用毛束の整列性、成形性に優れ、低コストで、植毛
基部の薄型化や多品種少量生産にも対応することができ
る。
As described above, according to the bristle bundle holding jig 1 of this embodiment and the method of manufacturing a toothbrush using the same, the bristle bundles are excellent in alignment and formability, and at low cost, the flocking is performed. It is possible to support thin base and high-mix low-volume production.

【0045】本発明は前記実施形態に制限されるもので
はなく、本発明の趣旨を逸脱しない範囲において適宜変
更することができる。
The present invention is not limited to the above-described embodiment, but can be modified as appropriate without departing from the spirit of the present invention.

【0046】また、本発明は、前記実施形態におけるよ
うに、スリーブによって用毛(束)を一束ずつ挿入する
ことが好ましいが、複数のスリーブを植毛パターンに対
応するよう集合させたものを用いて、複数の用毛束を一
度に挿入することもできる。
Further, according to the present invention, it is preferable to insert the bristles (bundles) one by one by the sleeve as in the above-mentioned embodiment, but a plurality of sleeves are assembled so as to correspond to the flocking pattern. Thus, a plurality of hair bundles can be inserted at one time.

【0047】本発明は、前記実施形態におけるように、
前記植毛基部を前記用毛束保持治具とともに成形装置に
配して該植毛基部と該成形装置の金型との間にキャビテ
ィを形成し、該キャビティ内に樹脂を射出して前記溶融
塊を被覆することによって、植毛部を形成することが好
ましいが、これ以外の手法、例えば、プラスチック板を
接着剤により接着する、プラスチック板を超音波や高周
波等により熱接着させる、又はプラスチック板をはめ合
わせる等の方法によって、前記溶融塊を被覆して植毛部
を形成することもできる。
The present invention, as in the previous embodiment,
The flocked base is placed in a molding device together with the hair bundle holding jig to form a cavity between the flocked base and a mold of the molding device, and a resin is injected into the cavity to form the molten mass. It is preferable to form the flocked portion by coating, but other methods, for example, a plastic plate is adhered with an adhesive, the plastic plate is thermally adhered by ultrasonic waves or high frequency, or a plastic plate is fitted together. It is also possible to form the flocked portion by coating the molten mass by the method described above.

【0048】本発明は、前記実施形態におけるように、
歯ブラシの製造に特に好適であるが、歯ブラシ以外のブ
ラシの製造、例えば、ヘアブラシ、マッサージブラシ、
洗浄ブラシその他の各種ブラシの製造にも適用すること
ができる。
The present invention is as in the above embodiment,
Particularly suitable for manufacturing toothbrushes, but for manufacturing brushes other than toothbrushes, such as hairbrushes, massage brushes,
It can also be applied to the production of cleaning brushes and various other brushes.

【0049】[0049]

【発明の効果】本発明によれば、用毛束の整列性、成形
性に優れ、低コストで、植毛基部の薄型化や多品種少量
生産にも対応することができる。
EFFECTS OF THE INVENTION According to the present invention, it is possible to achieve excellent alignment of hair bundles and moldability, low cost, thinning of the bristle bristle base, and production of small lots of various varieties.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の用毛束保持治具の一実施形態を模式的
に示す図であり、(a)は平面図、(b)は側面図であ
る。
FIG. 1 is a diagram schematically showing an embodiment of a hair bundle holding jig of the present invention, in which (a) is a plan view and (b) is a side view.

【図2】本発明のブラシの製造方法を歯ブラシの製造に
適用した一実施形態において、スリーブ内に導入された
用毛を押出ピンで押し出して用毛保持治具の挿入部に挿
入している状態を模式的に示す要部断面図である。
FIG. 2 is an embodiment in which the method for producing a brush of the present invention is applied to the production of a toothbrush, wherein the bristle introduced into the sleeve is pushed out by an extruding pin and inserted into the insertion portion of the bristle holding jig. It is a principal part sectional view which shows a state typically.

【図3】押出ピン、押し出された用毛及び用毛保持治具
の挿入部のそれぞれの先端形状の一例を模式的に示す図
である。
FIG. 3 is a diagram schematically showing an example of the tip shape of each of the push pin, the extruded bristle, and the insertion portion of the bristle holding jig.

【図4】溶融塊の形成工程を模式的に示す要部断面図で
あり、(a)は熱源で用毛の端部を溶融させている状態
を示す図、(b)は溶融塊が形成された状態を示す図で
ある。
FIG. 4 is a cross-sectional view of an essential part schematically showing a step of forming a molten mass, in which (a) shows a state in which the ends of the bristles are melted by a heat source, and (b) shows a molten mass formed. It is a figure which shows the state which was done.

【図5】充填材の充填工程を模式的に示す要部断面図で
ある。
FIG. 5 is a main-portion cross-sectional view schematically showing the step of filling the filling material.

【図6】歯ブラシを用毛束保持治具から分離した状態を
模式的に示す要部断面図である。
FIG. 6 is a cross-sectional view of essential parts schematically showing a state in which the toothbrush is separated from the bristle bundle holding jig.

【符号の説明】[Explanation of symbols]

1 用毛束保持治具 2 台座部 20 挿入部 3 位置決め手段 30 凹部 4 用毛保持機構 10 歯ブラシ 11 歯ブラシ本体 12 植毛基部 13 用毛 14 スリーブ 15 押出ピン Hair bundle holding jig for 1 2 pedestal 20 Insert 3 Positioning means 30 recess 4 Hair holding mechanism 10 toothbrush 11 Toothbrush body 12 Flocked base 13 hair 14 Sleeve 15 Extrusion pin

───────────────────────────────────────────────────── フロントページの続き (72)発明者 森若 博文 東京都墨田区文花2−1−3 花王株式会 社研究所内 Fターム(参考) 3B202 AA06 AB19 BA12 EA01 EB09 EG16 HA01    ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hirofumi Moriwaka             Kao Stock Association 2-1-3 Bunka, Sumida-ku, Tokyo             Company research institute F term (reference) 3B202 AA06 AB19 BA12 EA01 EB09                       EG16 HA01

Claims (13)

【特許請求の範囲】[Claims] 【請求項1】 植毛孔を複数有する植毛基部を、該植毛
基部の外形の輪郭と略同等形状に形成された凹部及び該
植毛孔と略同等形状に形成された挿入部を有する用毛保
持治具に配し、前記挿入部と前記各植毛孔とを通じさせ
て該植毛孔を介して該挿入部に用毛を挿入し、該植毛孔
及び該挿入部内に該用毛を保持した状態で、該各用毛に
おける該植毛孔から突出する部分を溶融させて溶融塊を
形成する工程を具備しているブラシの製造方法。
1. A hair-retaining treatment having a hair-implanted base having a plurality of hair-implanted holes, a recess having a shape substantially equivalent to the contour of the hair-implanted base, and an insertion portion having a shape substantially equivalent to the hair-implanted hole. Placed in a tool, insert the hair into the insertion portion through the hair insertion hole through the insertion portion and each of the hair implantation hole, in a state of holding the hair in the hair implantation hole and the insertion portion, A method for manufacturing a brush, comprising the step of melting a portion of each of the bristles protruding from the tufting hole to form a molten mass.
【請求項2】 形成された前記溶融塊を被覆して植毛部
を形成する工程を具備している請求項1記載のブラシの
製造方法。
2. The method for producing a brush according to claim 1, further comprising the step of coating the formed molten mass to form a flocked portion.
【請求項3】 前記植毛基部を前記用毛束保持治具とと
もに成形装置に配して該植毛基部と該成形装置の金型と
の間に樹脂を射出し、前記溶融塊を被覆する請求項1又
は2記載のブラシの製造方法。
3. The flocked base part is placed in a molding device together with the bristle bundle holding jig, and a resin is injected between the flocked base part and a mold of the molding device to coat the molten mass. The method for producing the brush according to 1 or 2.
【請求項4】 所定長さに切断された所定本数の前記用
毛を予め用毛の導入部に導入しておき、該導入部から前
記用毛を送出して前記挿入部に挿入する請求項1〜3の
何れかに記載のブラシの製造方法。
4. The hair of a predetermined number cut into a predetermined length is introduced into an introduction portion of the hair in advance, and the hair is fed from the introduction portion and inserted into the insertion portion. The manufacturing method of the brush in any one of 1-3.
【請求項5】 用毛を送出する送出手段の先端部が前記
挿入部の先端部の形態に対応した形状に設けられている
請求項4記載のブラシの製造方法。
5. The method for manufacturing a brush according to claim 4, wherein the tip of the feeding means for feeding the bristles is provided in a shape corresponding to the shape of the tip of the insertion portion.
【請求項6】 前記植毛基部側から前記植毛孔を通じて
前記挿入部に前記用毛を挿入する請求項1〜5記載のブ
ラシの製造方法。
6. The method for manufacturing a brush according to claim 1, wherein the bristles are inserted into the insertion portion from the side of the flocked base through the flocked hole.
【請求項7】 複数の植毛孔を有する植毛基部が配され
る台座部と、前記台座部に配された前記植毛基部を位置
決めする位置決め手段とを備えており、 前記台座部は、前記植毛基部が該台座部に位置決めされ
たときに前記各植毛孔にそれぞれ連通する用毛の挿入部
を有しているとともに、前記各植毛孔を通じて前記各挿
入部に挿入された用毛を保持する用毛保持機構を備えて
いる用毛束保持治具。
7. A pedestal part on which a flocked base part having a plurality of flocked holes is arranged, and a positioning means for positioning the flocked base part arranged on the pedestal part, wherein the pedestal part is the flocked base part. Has a hair insertion part that communicates with each of the hair transplant holes when positioned on the pedestal part, and holds the hair inserted into each of the insertion parts through each of the hair transplant holes. Hair bundle holding jig for hair that has a holding mechanism.
【請求項8】 前記台座部が、前記挿入部を前記用毛の
挿入方向において分断するように分割可能に設けられて
いる請求項7記載の用毛束保持治具。
8. The hair bundle holding jig according to claim 7, wherein the pedestal portion is provided so as to be divided so as to divide the insertion portion in the insertion direction of the hair.
【請求項9】 前記用毛保持機構が、分割された前記台
座部の一部を、前記各挿入部に挿入された前記用毛に対
してせん断方向に移動させて該各用毛を保持するように
設けられている請求項7又は8記載の用毛束保持治具。
9. The bristle holding mechanism holds a portion of the divided pedestal portion in the shearing direction with respect to the bristle inserted in each of the insertion portions to hold each bristle. 9. The hair bundle holding jig for hairs according to claim 7, which is provided as follows.
【請求項10】 前記挿入部における前記用毛の挿入方
向の先端部が、挿入される前記用毛の先端部を所定の整
列形態に整列させる形状に設けられている請求項7〜9
の何れかに記載の用毛束保持治具。
10. The tip of the insertion portion in the insertion direction of the bristle is provided in a shape that aligns the tip of the bristle to be inserted into a predetermined alignment form.
The hair bundle holding jig for hair according to any one of 1.
【請求項11】 前記台座部は、前記挿入部を前記用毛
の挿入方向における先端部の近傍において分断するよう
に分割可能に設けられている請求項7〜10の何れかに
記載の用毛束保持治具。
11. The hair according to any one of claims 7 to 10, wherein the pedestal portion is provided so as to be divided so as to divide the insertion portion near a tip end portion in the insertion direction of the hair. Bunch holding jig.
【請求項12】 複数の前記挿入部の一部又は全部が異
なる方向に配向されている請求項7〜11の何れかに記
載の用毛束保持治具。
12. The hair bundle holding jig according to claim 7, wherein some or all of the plurality of insertion portions are oriented in different directions.
【請求項13】 前記挿入部の挿入口が、外方に向けて
拡開するように設けられている請求項7〜12の何れか
に記載の用毛束保持治具。
13. The hair bundle holding jig for hair according to claim 7, wherein the insertion opening of the insertion portion is provided so as to widen outward.
JP2003048267A 2002-02-25 2003-02-25 Brush manufacturing method Expired - Lifetime JP4173749B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009525081A (en) * 2006-02-02 2009-07-09 ファーマ ジー.ビー. ボウシェリー,ナームローゼ フェンノートシャップ How to make a brush
KR101370281B1 (en) * 2013-05-22 2014-03-06 신예현 The apparatus and method of silicon cleaner
CN104379023A (en) * 2012-06-19 2015-02-25 博朗有限公司 Carrier for cleaning elements and method for producing such carriers for use in the production of toothbrush heads
JP2018174989A (en) * 2017-04-03 2018-11-15 サンスター株式会社 Toothbrush
CN109864435A (en) * 2019-04-15 2019-06-11 广州皓醒湾科技有限公司 A kind of toothbrush plant hair additional device
JP2020168465A (en) * 2020-07-07 2020-10-15 サンスター株式会社 toothbrush

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009525081A (en) * 2006-02-02 2009-07-09 ファーマ ジー.ビー. ボウシェリー,ナームローゼ フェンノートシャップ How to make a brush
CN104379023A (en) * 2012-06-19 2015-02-25 博朗有限公司 Carrier for cleaning elements and method for producing such carriers for use in the production of toothbrush heads
KR101370281B1 (en) * 2013-05-22 2014-03-06 신예현 The apparatus and method of silicon cleaner
JP2018174989A (en) * 2017-04-03 2018-11-15 サンスター株式会社 Toothbrush
CN109864435A (en) * 2019-04-15 2019-06-11 广州皓醒湾科技有限公司 A kind of toothbrush plant hair additional device
CN109864435B (en) * 2019-04-15 2024-04-12 广州星际悦动股份有限公司 Toothbrush bristle planting auxiliary device
JP2020168465A (en) * 2020-07-07 2020-10-15 サンスター株式会社 toothbrush

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