JP2006167027A - Toothbrush production method - Google Patents

Toothbrush production method Download PDF

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JP2006167027A
JP2006167027A JP2004361499A JP2004361499A JP2006167027A JP 2006167027 A JP2006167027 A JP 2006167027A JP 2004361499 A JP2004361499 A JP 2004361499A JP 2004361499 A JP2004361499 A JP 2004361499A JP 2006167027 A JP2006167027 A JP 2006167027A
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hair
bundle
bristle
hole
toothbrush
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Kaiji Kobayashi
海之 小林
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Lion Corp
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Lion Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for efficiently and stably producing a high-quality tapered bristle toothbrush without unevenness in the distal end of tapered bristles by implanting without a flat line. <P>SOLUTION: One end tapered bristle piece 1 is set on a bristle plate 11 so that its untapered end side comes into contact with a bristle plate bottom plate, the one end tapered bristle piece is pushed out from the untapered end side using a bristle pushing out pin 12b, thereby the bristle is cut out and at the same time the cut out bristle is inserted into a through hole for the bristle bundle of a bristle bundle cassette C, then the bristle is inserted into a head portion bristle inserting hole by pushing out the bristle bundle 6 in the through hole for the bundle of the bristle from the back side of the head portion 4 using a bundle of bristle pushing out pin 16b, then the untapered end portion is fused to the head portion back face by heating and melting the untapered end portion the bristle bundle 6 inserted into the bristle implanting hole from the head portion back face side using a melting heating unit 18 to obtain the tapered bristle toothbrush by covering the head portion back face side with a head portion constituting resin. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ヘッド部に片端テーパー用毛からなる刷毛を植設した歯ブラシの製造方法に関するものである。   The present invention relates to a method for manufacturing a toothbrush in which a brush composed of one end taper bristles is implanted in a head portion.

歯ブラシの製造方法は、大別して平線式植毛と平線なし植毛の2種類に分けられる。刷毛として先の尖ったテーパー用毛を用いたいわゆるテーパー用毛歯ブラシに関しては平線式植毛が主流であり、平線なし植毛では実用化に至っていない。この理由としては、平線なしでは、テーパー用毛ピースから歯ブラシ毛束に相当する本数の用毛を安定的に切り出すことが難しいこと、また毛束の搬送・挿入工程で毛先が乱れやすく、毛先不揃いなどの不良発生を抑えることが難しいことなどが挙げられる。以下、従来技術について特許文献を挙げて説明する。   The manufacturing method of toothbrushes is roughly divided into two types: flocking with a flat line and flocking without a flat line. Regarding so-called taper toothbrushes using a tapered taper as a brush, flat-line type flocking is the mainstream, and flat line-type flocking has not been put to practical use. The reason for this is that without the flat wire, it is difficult to stably cut out the number of hairs corresponding to the toothbrush hair bundle from the taper bristle piece, and the tip of the hair tends to be disturbed in the process of conveying and inserting the hair bundle, For example, it is difficult to suppress the occurrence of defects such as irregular hair ends. The prior art will be described below with reference to patent documents.

1.特許文献1(特開昭56−20005号公報)
上下方向に貫通する植毛穴を備えた歯ブラシヘッド部に瞬間衝撃を連続的に繰り返し与えることにより、ヘッド部背面側から用毛を植毛穴内に嵌装させ、ヘッド部に固定するようにしたブラシの植毛方法が示されている。しかし、テーパー用毛に関する最適な毛束切り出し方法、歯ブラシへの挿入・固定方法などは研究されていない。
1. Patent Document 1 (Japanese Patent Laid-Open No. 56-20005)
A brush designed to fit hairs into the flocked hole from the back side of the head part and fix it to the head part by repeatedly applying a momentary impact to the toothbrush head part having a flocked hole penetrating vertically. The method of flocking is shown. However, the optimum method for cutting out the hair bundle for taper hair and the method for inserting and fixing the toothbrush have not been studied.

2.特許文献2(特開2004−181215号公報)
針状テー毛の非テーパー部分を歯ブラシヘッドの通孔に押し入れた後、熱溶着するようにした歯ブラシ製造方法が示されている。この製造方法の場合、テーパー用毛先端側をピンで押すため、挿入工程で毛先が曲がりやすく、毛先折れや毛先不揃いなどの不良多発が避けられない。また、非テーパー端部側が挿入抵抗となって用毛充填率を挙げることができず、毛束密度が「疎」となり、刷毛耐久性の低い歯ブラシとなる。また、製造効率を上げるためにスピードアップを図ると、更に毛先が傷つき易くなり、不良発生率は顕著に増加する。また、毛束自由端側を斜めカット形状に形成する場合も、毛束挿入時に押し込みピン先端でテーパー毛先が滑るか、曲がるため、複雑な刷毛プロファイルを形成することは困難である。また、挿入される用毛は各工程においてカセット部、歯ブラシヘッド部の貫通孔に緩く入っているだけであるため、搬送工程中に穴内で毛束が乱れやすく、毛先の不揃いなどの不良発生原因となる。
2. Patent Document 2 (Japanese Patent Laid-Open No. 2004-181215)
A toothbrush manufacturing method is shown in which a non-tapered portion of a needle-like tape is pressed into a through-hole of a toothbrush head and then heat-welded. In the case of this manufacturing method, since the tip of the taper hair is pushed with a pin, the tip of the hair tends to be bent in the insertion process, and frequent defects such as broken tips and uneven tips cannot be avoided. Further, the non-tapered end side becomes an insertion resistance, so that the bristle filling rate cannot be increased, the hair bundle density becomes “sparse”, and the toothbrush with low brush durability is obtained. Further, if the speed is increased in order to increase the production efficiency, the hair ends are more easily damaged, and the defect occurrence rate is remarkably increased. In addition, when the hair bundle free end side is formed in an oblique cut shape, it is difficult to form a complicated brush profile because the tip of the tapered hair slips or bends at the tip of the pushing pin when the hair bundle is inserted. In addition, since the hair to be inserted is only loosely inserted in the through holes of the cassette part and toothbrush head part in each process, the hair bundle tends to be disturbed in the hole during the transport process, and defects such as uneven hair tips occur. Cause.

3.特許文献3(特開2002−136341号公報)
植毛穴の断面形状および断面積に対応した個別のスリーブを用意し、スリーブに用毛を導入した後、スリーブ内の押出しピンによって歯ブラシヘッドの植毛穴に毛束を個別に挿入するようにした歯ブラシ製造方法が示されている。この方法の場合、構造上、テーパー用毛をスリーブに導入する方向は非テーパー部側からとなるが、非テーパー部のエッジが邪魔になり、安定的にスリーブへの導入ができない。また、テーパー部側も導入抵抗によって押し潰されるため、毛先不良が発生しやすい。さらに、個別スリーブのため、一度に刷毛の切り出しおよび全植毛穴への挿入ができないため、生産性に劣るばかりか、毛束断面積の異なる複数の毛束で構成された歯ブラシを製造する場合は、個別スリーブをその数だけ準備する必要があり、設備の大型化、メンテナンス性の低下などの問題も避けられない。
3. Patent Document 3 (Japanese Patent Laid-Open No. 2002-136341)
A toothbrush that prepares individual sleeves corresponding to the cross-sectional shape and cross-sectional area of the flocked hole, introduces the bristles into the sleeve, and then inserts the hair bundles individually into the flocked holes of the toothbrush head by the push pins in the sleeve The manufacturing method is shown. In the case of this method, the direction in which the taper bristles are introduced into the sleeve is structurally from the non-tapered portion side, but the edge of the non-tapered portion becomes an obstacle and cannot be stably introduced into the sleeve. Moreover, since the taper portion side is also crushed by the introduction resistance, defective hair ends are likely to occur. Furthermore, because it is an individual sleeve, it is not possible to cut out the brush at once and insert it into all the flock holes, so it is not only inferior in productivity, but also when manufacturing a toothbrush composed of a plurality of hair bundles with different hair bundle cross-sectional areas. Therefore, it is necessary to prepare the number of individual sleeves, and problems such as an increase in equipment size and a decrease in maintainability are unavoidable.

4.特許文献4(特開2002−136340号公報)
フィラメントの一端を固着した毛束と貫通孔を有する歯ブラシヘッドと、毛束固定部材、毛束抜止部材からなる歯ブラシが示されている。実施例中にはテーパー用毛歯ブラシも示されているが、毛束の切り出し方法、挿入方法などのテーパー用毛歯ブラシの製造方法として重要な工程については何らの記載もない。
4). Patent Document 4 (Japanese Patent Laid-Open No. 2002-136340)
There is shown a toothbrush comprising a toothbrush head having a bristle bundle having one end of a filament fixed thereto and a through hole, a bristle bundle fixing member, and a bristle bundle removal member. In the examples, a taper toothbrush is also shown, but there is no description of steps important as a method for manufacturing a taper toothbrush such as a method for cutting out and inserting a hair bundle.

5.特許文献5(実開平6−50532号公報)
先端にテーパー部を有する複数本の刷毛を束ねて毛束とし、該毛束の基端部を溶融して刷毛を一体化し、この基端部を溶融一体化された毛束をヘッド部の植毛面に固着した歯ブラシが示されている。 この歯ブラシは、毛束の一端を固着した後にヘッド部に固着したものである。
5. Patent Document 5 (Japanese Utility Model Publication No. 6-50532)
A plurality of brushes having a tapered portion at the tip are bundled to form a hair bundle, the proximal end portion of the hair bundle is melted to integrate the brush, and the hair bundle obtained by melting and integrating the proximal end portion is implanted into the head portion. A toothbrush secured to the surface is shown. This toothbrush is fixed to the head portion after fixing one end of the bristle bundle.

特開昭56−20005号公報(全文、全図)Japanese Patent Laid-Open No. 56-20005 (full text, full figure) 特開2004−181215号公報(全文、全図)Japanese Unexamined Patent Application Publication No. 2004-181215 (full text, full figure) 特開2002−136341号公報(全文、全図)Japanese Patent Laid-Open No. 2002-136341 (full text, full figure) 特開2002−136340号公報(全文、全図)Japanese Patent Laid-Open No. 2002-136340 (full text, full figure) 実開平6−50532号公報(全文、全図)Japanese Utility Model Publication No. 6-50532 (full text, all figures)

1.テーパー用毛歯ブラシを平線なし植毛で製造する場合、テーパー用毛ピースから歯ブラシ毛束に対応する複数本の用毛を傷つけることなく切り出すことが困難であった。すなわち、
(1)個別スリーブによる切り出しの場合、テーパー用毛先端側からスリーブ内に用毛を導入すると、スリーブ先端で毛先を潰したり、曲げたりするため、不良が発生しやすい。また、毛先は基部よりも断面積が小さいため、取り出す本数がばらつき、安定した品質の歯ブラシを製造できない。一方、用毛基端部側からスリーブ内に導入する場合、用毛基端部のエッジが邪魔になり、毛束外周部の用毛がスリーブ先端に当たって潰されるため、不良発生の原因となる。また、複数サイズの毛束を有する歯ブラシを製造する場合には、複数のスリーブを必要とするため、設備投資が大きくなり、コストアップの原因になるとともに、工程が複雑となるため、生産性も低下する。
1. When manufacturing a taper toothbrush by flocking without a flat wire, it was difficult to cut out a plurality of hairs corresponding to a toothbrush hair bundle from a taper bristle piece without damaging it. That is,
(1) In the case of cutting out with an individual sleeve, if the hair is introduced into the sleeve from the taper hair tip side, the hair tip is crushed or bent at the sleeve tip, so that a defect tends to occur. In addition, since the bristle tip has a smaller cross-sectional area than the base, the number of hairs to be taken out varies, and a toothbrush with stable quality cannot be manufactured. On the other hand, when the hair is introduced into the sleeve from the hair proximal end side, the edge of the hair proximal end becomes an obstacle, and the hair on the outer peripheral portion of the hair bundle hits the tip of the sleeve and is crushed. In addition, when manufacturing a toothbrush having a plurality of sizes of hair bundles, a plurality of sleeves are required, which increases capital investment, increases costs, and complicates the process. descend.

(2)平線式ピッカーによる切り出しの場合、複数サイズの毛束を有する歯ブラシを製造するには、複数の植毛ヘッドが必要となるため、設備投資が大きくなり、コストアップの原因となるとともに、工程が複雑となるため、生産性も低下する。また、ピッキング中に毛先が乱れやすい。
(3)押出しピンによるテーパー先端側からの切り出しの場合、毛先が潰れやすく、安定した本数での切り出しも困難である。
(2) In the case of cutting with a flat wire type picker, in order to produce a toothbrush having a plurality of sizes of hair bundles, a plurality of flocking heads are required, which increases capital investment and causes a cost increase. Since the process becomes complicated, productivity is also reduced. Further, the tip of the hair tends to be disturbed during picking.
(3) In the case of cutting out from the tip end side of the taper by the extrusion pin, the hair tip is easily crushed and it is difficult to cut out with a stable number.

2.テーパー用毛歯ブラシを平線なし植毛で製造する場合、安定した本数での切り出しができないと、毛束挿入時の毛詰まりトラブルの原因となるため、植毛穴または毛束移動カセットの貫通孔の断面サイズに余裕を持たせる必要があった。このため、穴(孔)内の用毛は搬送中に位置ずれを起こしやすい状態となり、毛先不揃いなどの不良発生の原因となっていた。 2. When manufacturing a taper toothbrush with flocking without a flat wire, if it is not possible to cut with a stable number, it may cause clogging problems when inserting the hair bundle. It was necessary to have a margin in size. For this reason, the hair in the hole (hole) is in a state in which it is likely to be displaced during conveyance, and causes defects such as uneven hair tips.

3.テーパー用毛歯ブラシを平線なし植毛で製造する場合、歯ブラシヘッドの植毛穴または毛束移動カセットの貫通孔に毛束を挿入する際に、毛先が乱れて不良発生の原因となっていた。 3. In the case of manufacturing a tapered bristle toothbrush by flocking without a flat line, when the bristles are inserted into the flocking holes of the toothbrush head or the through holes of the bundling movement cassette, the bristles are disturbed and cause defects.

4.テーパー用毛歯ブラシを平線なし植毛で製造する場合、山形形状や波形形状などの複雑な刷毛プロファイリングは困難であった。平線式植毛においても、用毛ピース長を予め正確に揃えて毛皿にセットしても、ピッカーでの搬送時や植毛穴への用毛打ち込み時に毛先が乱れるため、ある程度の毛先ばらつきは避けられず、細かな刷毛プロファイリングも実現困難であった。 4). When manufacturing a taper toothbrush by flocking without a flat wire, complicated brush profiling such as a chevron shape and a corrugated shape has been difficult. Even with flat-line type flocking, even if the hair piece length is precisely aligned in advance and set on the hair plate, the tip of the hair is disturbed when transporting with a picker or driving the hair into the flocking hole, so there is some variation in the hair tip Was inevitable, and fine brush profiling was difficult to achieve.

本発明は、上記問題を解決するためになされたもので、毛先に不揃いのない高品質なテーパー用毛歯ブラシを平線なし植毛によって効率よく、かつ、安定的に製造する方法を提供することを目的とするものである。   The present invention has been made to solve the above problems, and provides a method for efficiently and stably producing a high-quality taper toothbrush having no irregularities in the bristles by flocking without a flat wire. It is intended.

上記目的を達成するため、本発明では次のような手段を採用した。
すなわち、請求項1記載の歯ブラシ製造方法は、片端テーパー用毛ピースをその非テーパー端側が毛皿底面板に接するように毛皿上にセットするとともに、該片端テーパー用毛ピースの上に歯ブラシヘッド部の植毛穴に対応した毛束用貫通孔を形成された用毛移動カセットを配置し、用毛押出しピンによって非テーパー端側から片端テーパー用毛を押し出すことにより、毛束に対応する本数の用毛を切り出すと同時に該切り出した毛束を用毛移動カセットの毛束用貫通孔に挿入し、次いで、該用毛移動カセットの上に歯ブラシハンドルをそのヘッド部背面が用毛移動カセットと向き合うようにセットした後、毛束押出しピンによって毛束用貫通孔内の毛束をヘッド部背面側から押し出すことにより、毛束をヘッド部背面側からヘッド部の植毛穴に挿入し、次いで、前記植毛穴に挿入された毛束の非テーパー端部をヘッド部背面側から加熱して溶融することにより、非テーパー端部をヘッド部背面に溶着し、次いで、ヘッド部背面側をヘッド部構成樹脂によって覆うことにより、テーパー用毛歯ブラシを得るようにしたものである。
In order to achieve the above object, the present invention employs the following means.
That is, the toothbrush manufacturing method according to claim 1 sets the bristle piece for one end taper on the bristle so that the non-taper end side is in contact with the bottom plate of the dish, and the toothbrush head on the one end taper bristle piece The hair movement cassette in which the through hole for the hair bundle corresponding to the flock hole of the part is formed is arranged, and the number of hairs corresponding to the hair bundle is pushed out by extruding the one end taper hair from the non-tapered end side by the hair pushing pin. At the same time as cutting out the hair, the cut hair bundle is inserted into the hair bundle through hole of the hair movement cassette, and then the toothbrush handle is placed on the hair movement cassette and the back of the head part faces the hair movement cassette. After the hair bundle is pushed out, the hair bundle in the through hole for hair bundle is pushed out from the back side of the head part by the hair bundle push pin, so that the hair bundle is implanted from the back side of the head part. Then, the non-tapered end of the hair bundle inserted into the flock hole is heated and melted from the back side of the head part to weld the non-tapered end part to the back of the head part, and then the head part A taper toothbrush is obtained by covering the back side with a head portion constituting resin.

また、請求項2記載の歯ブラシ製造方法は、片端テーパー用毛を用毛移動カセットの毛束用貫通孔に挿入するときの用毛充填率(用毛基部径総断面積/貫通穴面積×100%)を60%以上、70%未満とし、用毛移動カセットから歯ブラシヘッド部の植毛穴に毛束を挿入するときの用毛充填率を70%以上、80%未満とし、用毛移動カセットの毛束用貫通孔への毛束の挿入、歯ブラシヘッド部の植毛穴への毛束の挿入の順に毛束を順次圧縮しながら植毛するようにしたものである。   Further, the toothbrush manufacturing method according to claim 2 is characterized in that the bristle filling rate when the one end taper bristles are inserted into the bristles through holes of the bristles moving cassette (total bristle diameter cross-sectional area / through hole area × 100 %) Is set to 60% or more and less than 70%, and the bristle filling rate when inserting the hair bundle from the bristle moving cassette into the flock hole of the toothbrush head is set to 70% or more and less than 80%. The hair bundle is planted while sequentially compressing the hair bundle in the order of insertion of the hair bundle into the hair bundle through hole and insertion of the hair bundle into the flock hole of the toothbrush head portion.

また、請求項3記載の歯ブラシ製造方法は、用毛移動カセットの毛束用貫通孔と同一断面形状からなる毛叩きピンを備えた振動毛叩き装置を毛束用貫通孔の用毛挿入側と反対側の開口部に配置し、毛叩きピンを毛束に連動して毛束用貫通孔内に進退させ、毛束の先端を振動する毛叩きピンの先端で叩いて整毛しながら毛束を毛束用貫通孔に挿入していくようにしたものである。   According to a third aspect of the present invention, there is provided a toothbrush manufacturing method comprising: a vibrating hair tapping device having a hair tapping pin having the same cross-sectional shape as a hair bundle through hole of a hair moving cassette; The hair bundle is placed in the opening on the opposite side, the hair tapping pin is moved forward and backward in the hair bundle through hole in conjunction with the hair bundle, and the tip of the hair tapping pin vibrates to strike the hair bundle while adjusting the hair. Are inserted into the hair bundle through-holes.

また、請求項4記載の歯ブラシ製造方法は、同一長さの片端テーパー用毛を用い、毛束押出しピンの先端部形状および/またはピンの長さを刷毛プロファイルに合わせて変えるようにしたものである。   According to a fourth aspect of the present invention, there is provided a toothbrush manufacturing method using one end taper bristles having the same length, and changing the shape of the tip of the hair bundle extrusion pin and / or the length of the pin in accordance with the brush profile. is there.

以下、上記本発明の歯ブラシ製造方法についてさらに詳しく説明する。
1.テーパー用毛
本発明で用いる用毛(フィラメント)は、毛先の一端がテーパー化(先鋭化)された、いわゆる片端テーパー用毛である。用毛材質に特に制限はないが、先鋭化加工を薬液処理で行なう場合、ポリエチレンテレフタレート、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などのポリエステルモノフィラメントを用いることが好ましい。薬液としては、有機溶剤でも構わないが、酸またはアルカリ溶液を用いる方が処理が比較的容易で望ましい。
Hereinafter, the toothbrush manufacturing method of the present invention will be described in more detail.
1. Tapered hair The filament (filament) used in the present invention is a so-called one-end tapered hair in which one end of the hair tip is tapered (sharpened). Although there is no restriction | limiting in particular in hair material, When sharpening process is performed by a chemical | medical solution process, it is preferable to use polyester monofilaments, such as a polyethylene terephthalate, a polybutylene terephthalate, a polytrimethylene terephthalate. The chemical solution may be an organic solvent, but it is desirable to use an acid or alkali solution because the treatment is relatively easy.

片端テーパー用毛ピース群から毛束に対応する用毛を安定的に切り出すためには、予め正確に用毛長を仕分けした用毛ピースを毛皿にセットし、適度なプッシャー圧でこれを保持した後、用毛押出しピンで非テーパー端部側を押すことが望ましい。これによって、テーパー毛先を損傷することなしに毛束に相当する用毛を正確に切り出すことができる。   In order to stably cut out the hair corresponding to the hair bundle from the hair piece group for one end taper, set the hair piece with the hair length accurately sorted in advance on the hair plate and hold it with an appropriate pusher pressure. After that, it is desirable to push the non-tapered end side with a hair extrusion pin. As a result, the hair corresponding to the hair bundle can be accurately cut out without damaging the tapered hair tips.

用毛径や用毛長の制限も特にないが、歯ブラシの場合、用毛最大径は直径0.1〜0.3mm、毛先径は0.005〜0.5mm、用毛長は7〜20mm程度の範囲が望ましい。用毛ピースは毛皿にセットする前に、用毛長を設定値±0.25〜0.5mm程度の範囲で選定することが好ましい。用毛長のばらつきが大きい用毛ピースを用いると、毛先が不揃いとなり、使用感の悪い歯ブラシとなる。   Although there is no particular limitation on the hair diameter or hair length, in the case of a toothbrush, the hair maximum diameter is 0.1 to 0.3 mm, the tip diameter is 0.005 to 0.5 mm, and the hair length is 7 to A range of about 20 mm is desirable. Prior to setting the hair piece on the hair plate, it is preferable to select the hair length in a range of about a set value ± 0.25 to 0.5 mm. When a bristle piece having a large variation in bristle length is used, the hair ends become uneven, resulting in a toothbrush with a poor feeling of use.

2.歯ブラシハンドル
歯ブラシハンドルは、一般の歯ブラシと同様であり、刷毛を植毛されたヘッド部と、首部と、握り部を有する。ヘッド部の背面側には、毛束を溶着するためのスペースとして、所定深さにえぐられた部分を有し、この部分を貫通して植毛穴を所定個形成する。このとき、植毛部の厚さは、0.5〜3.5mm程度とする。0.5mmより薄いと毛立ちが悪くなり、3.5mmより厚いと仕上げ後のヘッド厚みが厚くなりすぎ、口腔内での操作性が悪化する。植毛穴の形状並びにサイズに関しては、従来の平線なし植毛歯ブラシと同様、特に制限はない。
2. Toothbrush handle The toothbrush handle is the same as a general toothbrush, and has a head portion in which a brush is implanted, a neck portion, and a grip portion. On the back side of the head portion, as a space for welding the hair bundle, the head portion has a portion drilled to a predetermined depth, and a predetermined number of flock holes are formed through this portion. At this time, the thickness of the flocked portion is about 0.5 to 3.5 mm. When the thickness is less than 0.5 mm, the fuzzing is worsened. When the thickness is more than 3.5 mm, the head thickness after finishing becomes too thick, and the operability in the oral cavity is deteriorated. There is no restriction | limiting in particular regarding the shape and size of a flocking hole similarly to the conventional flocking toothbrush without a flat line.

歯ブラシハンドルは、一色または多色成形品のいずれでもよい。多色成形品とする場合、1次側の硬質材料としては、ポリプロピレン(PP)、ポリエチレンテレフタレート(PET)、アクリル樹脂、ABS樹脂、AS(アクリルスルホネート)樹脂、ポリシクロヘキシレンジメチレンテレフタレート(PCT)樹脂などを用いることができ、2次側の軟質材料としては、ポリエステル系熱可塑性エラストマー、スチレン系熱可塑性エラストマー、オレフィン系熱可塑性エラストマーなどを用いることができる。   The toothbrush handle may be either a single color or multicolor molded product. In the case of a multicolor molded product, the hard material on the primary side is polypropylene (PP), polyethylene terephthalate (PET), acrylic resin, ABS resin, AS (acrylic sulfonate) resin, polycyclohexylene dimethylene terephthalate (PCT). Resin or the like can be used, and as the secondary-side soft material, polyester thermoplastic elastomer, styrene thermoplastic elastomer, olefin thermoplastic elastomer, or the like can be used.

3.毛皿
テーパー用毛の供給、毛束の切り出しは、用毛ステーションで行なう。用毛ピースは、その非テーパー側を毛皿底板に接するようにセットする。毛束切り出し部の反対側から用毛を供給し、テーパー用毛の毛先全体を振動毛叩き装置で叩き、用毛に振動を与えて整毛しながら切り出し部まで送り込む。用毛供給部後端には、エアー圧などを用いた用毛プッシャーを設け、用毛側面から0.5〜3.0kg/cm程度の圧力をかけることで用毛を適度に整え、安定的な用毛供給を補助する。
3. Hair plate Taper hair supply and hair bundle cutting are performed at the hair station. The hair piece is set so that the non-tapered side is in contact with the hair plate bottom plate. The hair is supplied from the opposite side of the hair bundle cut-out portion, the entire tip of the taper hair is beaten with a vibrating bristle device, and the hair is vibrated and sent to the cut-out portion while adjusting the hair. A hair pusher using air pressure or the like is provided at the rear end of the hair supply section, and the hair is properly adjusted and stable by applying a pressure of about 0.5 to 3.0 kg / cm 2 from the side of the hair. Assists in supplying natural hair.

4.毛束の切り出し
用毛ピースからの毛束の切り出しは、毛皿先端部で行なう。毛皿先端部には、毛束に相当する大きさの用毛押出しピンを備えた用毛押出し装置を設ける。また、これらの上側には切り出す毛束に対応する毛束用貫通孔を備えた用毛移動カセットをセットする。
4). Cutting out the hair bundle from the hair piece for cutting out the hair bundle is performed at the tip of the hair dish. A hair extruding device provided with a hair extruding pin having a size corresponding to the hair bundle is provided at the tip of the hair plate. Moreover, the hair movement cassette provided with the through-hole for hair bundles corresponding to the hair bundle to cut out is set above these.

毛皿上の用毛は、用毛押出しピンがせり出すことで非テーパー端部が押され、必要な本数だけ毛皿から突き上げられることで行なわれる。用毛押出しピンは毛束が完全に用毛移動カセットの毛束用貫通孔に収まるまで押し出され、その後、元の位置に戻る。毛皿上の用毛にはプッシャーがかかっているため、押出しピンが戻ると同時に、用毛押出しピン上に次の用毛が満たされることになる。用毛押出しピンは、先端面をヤスリ目状として用毛を確実に押し出せるようにするとともに、更にフラットであることが好ましく、金属製あるいは耐摩耗性に優れたナイロンやフッ素樹脂などの合成樹脂でコーティングすることが好ましい。   The hair on the hair plate is performed by pushing out the non-tapered end by protruding the hair pushing pin and pushing it up from the hair plate by the required number. The hair pushing pin is pushed out until the hair bundle is completely accommodated in the hair bundle through hole of the hair moving cassette, and then returns to the original position. Since the pusher is applied to the hair on the hair plate, the push pin returns and, at the same time, the next hair is filled on the push pin. The hair extruding pin has a file-like tip surface so that the hair can be reliably pushed out, and is preferably flat, and is made of metal or synthetic resin such as nylon or fluororesin having excellent wear resistance. It is preferable to coat with.

用毛移動カセットの毛束用貫通孔に挿入する用毛の用毛充填率は、60%以上、70%未満が好ましい。60%未満の場合、搬送中に用毛が動いて毛先が不揃いになったり、カセットから用毛が落下しやすくなる。70%以上の場合、毛束が圧縮されず、カセットへの毛束の挿入工程で無理な負荷がかかる可能性があり、好ましくない。   The hair filling rate of the hair to be inserted into the hair bundle through hole of the hair moving cassette is preferably 60% or more and less than 70%. If it is less than 60%, the hair moves during conveyance and the hair ends become uneven, or the hair easily falls from the cassette. When it is 70% or more, the hair bundle is not compressed, and an excessive load may be applied in the step of inserting the hair bundle into the cassette, which is not preferable.

用毛移動カセットの厚みは、用毛ピースとほぼ同じ寸法とすることが好ましい。1つの歯ブラシに複数種類の用毛からなる毛束を植毛する場合は、用毛の種類ごとに対応する用毛押出しピンを備えた用毛押出し装置を用意し、用毛移動カセットの対応する毛束用貫通孔に順次異なる毛束群を挿入充填した後、次工程へカセットを搬送する。   It is preferable that the thickness of the bristle moving cassette is approximately the same size as the bristle piece. When planting a bundle of hairs of a plurality of types on one toothbrush, prepare a hair extruding device equipped with a hair extruding pin corresponding to each type of hair and use the corresponding hair of the hair moving cassette. After inserting and filling different bundles of hairs sequentially into the bundle through holes, the cassette is transported to the next process.

5.用毛移カセットの搬送
毛束用貫通孔に毛束を挿入後、用毛移動カセットは、毛皿ステーションから植毛ステーションまで搬送する。搬送時の用毛落下や乱れのリスクを軽減するため、毛束用貫通孔の両側には用毛ガイド板を設置することが好ましい。また、次工程への搬送距離は可能な限り短く設定する。
5. Carrying the hair transfer cassette After inserting the hair bundle into the hair bundle through-hole, the hair moving cassette is carried from the hair dish station to the flocking station. In order to reduce the risk of hair fall or disturbance during transportation, it is preferable to install hair guide plates on both sides of the hair bundle through-hole. The transport distance to the next process is set as short as possible.

6.歯ブラシヘッド部への植毛
用毛移動カセットを植毛ステーションの毛束押出し装置上にセットした後、歯ブラシハンドルをヘッド部背面が用毛移動カセットの毛束用貫通孔の開口部に向き合うようにセットする。その後、毛束押出しピンをせり出し、ヘッド部背面側から片端テーパー用毛を植毛穴に挿入する。
6). After setting the hair movement cassette for flocking to the toothbrush head part on the hair bundle extrusion device of the flocking station, set the toothbrush handle so that the back of the head part faces the opening of the hair bundle through hole of the hair movement cassette. . Thereafter, the hair bundle push-out pin is pushed out, and one end taper hair is inserted into the flock hole from the back side of the head part.

テーパー用毛を用いた刷毛の複雑なプロファイリングに対応するためには、毛束押出しピンの先端面形状を刷毛プロファイルに対応した形状(例えば、平切り形状、山切り形状など)とし、また、毛束押出しピンの長さも刷毛プロファイルの各毛束の毛丈に対応した長さ(例えば、階段状、凸面状、凹面状など)に設定する。複雑な刷毛プロファイルの場合、毛束が毛束断面方向に位置ずれを起こすことを防ぐために、その先端面を#100〜#1000程度のヤスリ目状とすることが好ましい。   In order to cope with the complex profiling of brushes using taper hair, the tip surface shape of the hair bundle push-out pin should be a shape corresponding to the brush profile (for example, flat cut shape, mountain cut shape, etc.) The length of the bundle pushing pin is also set to a length (for example, stepped shape, convex shape, concave shape, etc.) corresponding to the hair length of each hair bundle of the brush profile. In the case of a complex brush profile, it is preferable that the tip end face has a file-like shape of about # 100 to # 1000 in order to prevent the hair bundle from being displaced in the hair bundle cross-sectional direction.

また、毛束のヘッド部植毛穴への用毛充填率は70%以上、80%未満の範囲とする。70%未満の場合、ヘッド部への圧縮固定が緩すぎ、次工程への搬送中や用毛の溶融固定工程で毛先が不揃いになる可能性があり、好ましくない。80%以上の場合、植毛穴に挿入される毛束が圧縮されすぎるため、毛束の挿入工程で毛束が座屈するなど、工程トラブルになるリスクが増す。毛束の毛腰が強く、歯ブラシハンドルが柔らかい素材の場合には、用毛充填率90%程度でも製造可能なケースもあるが、一般的には好ましくない。毛束の挿入工程では、用毛の非テーパー端側を1〜3mm程度の範囲でヘッド部背面側から突出させ、毛束の溶融固定工程における溶融部分とする。   Further, the filling rate of the hair in the head portion flocking hole of the hair bundle is in the range of 70% or more and less than 80%. If it is less than 70%, the compression and fixing to the head portion is too loose, and the tips of the hair may become uneven during conveyance to the next step or in the melting and fixing step of the hair, which is not preferable. In the case of 80% or more, since the hair bundle inserted into the flock hole is compressed too much, there is an increased risk of process trouble such as the hair bundle buckling in the hair bundle insertion process. In the case where the bristles of the bristles are strong and the toothbrush handle is a soft material, there are cases where it can be produced even with a bristle filling rate of about 90%, but it is generally not preferable. In the hair bundle insertion process, the non-tapered end side of the hair is protruded from the back side of the head part within a range of about 1 to 3 mm, and is used as a melting portion in the hair bundle melting and fixing process.

7.毛束の溶融固定と仕上げ
ヘッド部植毛穴に植毛した毛束を確実に固定するためには、用毛の非テーパー端側を熱や超音波によって溶融し、溶着することが好ましい。用毛は毛束毎に溶融するか、毛束全体をつなぐように溶融し、その後、合成樹脂をヘッド部背面側に射出成形してヘッド部背面を覆うか、あるいは、合成樹脂製の蓋をヘッド部背面側に取り付けて超音波などで接着してヘッド部背面を覆うことにより、完成品としての歯ブラシとして仕上げる。
7). Fusion fixing and finishing of hair bundle In order to securely fix the hair bundle planted in the head part flocking hole, it is preferable to melt and weld the non-tapered end side of the hair by heat or ultrasonic waves. The hair is melted for each hair bundle, or melted so as to connect the whole hair bundle, and then synthetic resin is injection-molded on the back side of the head part to cover the back part of the head part, or a lid made of synthetic resin is used. Attached to the back side of the head part and bonded with ultrasonic waves to cover the back side of the head part, the finished product is finished as a toothbrush.

8.毛束の整毛
テーパー用毛歯ブラシは、テーパー用毛の毛先を先鋭化させたものほど製造しにくいが、不良発生抑制のために植毛した後にカッターなどで毛先をトリミングしてしまうと、先鋭な毛先が消失し、テーパー用毛独特の使用感を失ってしまう。したがって、歯ブラシの製造工程においては、植毛後に毛先加工の必要がないように、毛束の乱れを極力起こさない工夫が重要である。毛先の乱れをコントロールしにくい工程は、毛束の切り出し工程、挿入工程および用毛溶着工程であるため、これらの工程には振動毛叩き装置設け、用毛先端に振動を与えながら整毛することが好ましい。用毛の切り出し部には、用毛移動カセットの毛束用貫通孔のと孔形状と同一断面形状からなる毛叩きピンを毛束数だけ備えた振動毛叩き装置を配置し、振動幅0.5〜1mm程度の上下振動で用束先端を毛叩きすることが望ましい。
8). Trimming the hair bundle The taper toothbrush for taper is harder to manufacture as the tip of the taper hair is sharpened, but if you trim the hair tip with a cutter etc. after planting to prevent defects, The sharp hair ends disappear and the unique feel of taper hair is lost. Therefore, in the manufacturing process of the toothbrush, it is important to devise a technique that prevents the hair bundle from being disturbed as much as possible so that the hair tip processing is not necessary after the flocking. The processes that make it difficult to control the hair tip disorder are the hair bundle cutting process, insertion process, and hair fusing process. In these processes, a vibrating hair tapping device is provided, and hair is adjusted while applying vibration to the hair tips. It is preferable. In the cut-out portion of the hair, a vibrating hair tapping device having a number of hair tapping pins having the same cross-sectional shape as the hole shape of the hair bundle through-hole of the hair moving cassette is arranged. It is desirable to tap the tip of the bundle with vertical vibration of about 5 to 1 mm.

毛束の切り出しに際しては、初めに前記毛叩きピンを用毛移動カセットの毛束用貫通孔の中間位置程度まで挿入し、用毛押出しピンのせり出しと同期して上昇させ、用毛を潰さないようにテーパー先端側を叩いて整えながら毛束貫通孔から抜き出して停止する。こうすることで、毛束用貫通孔内の毛束は押出しピンと毛叩きピンに挟まれ、先端面と下端面が平らに整毛される。毛叩きの振動幅が0.5mmよりも小さいと整毛能力が低くなり、1mmよりも大きいと逆に用毛毛束を乱す原因になる。歯ブラシのヘッド部植毛穴への毛束の挿入工程および用毛溶着工程においては、刷毛プロファイルに対応した形状からなる毛叩き振動板を設け、毛束の毛先をこの毛叩き振動板で押さえながらそれぞれの加工を行なう。   When cutting out the hair bundle, firstly insert the flapping pin to the middle position of the hair bundle through hole of the hair moving cassette and raise it in synchronism with the protrusion of the hair pushing pin so as not to crush the hair. In this manner, the taper is pulled out from the hair bundle through hole while stopping by tapping the tip end of the taper and stopped. By doing so, the hair bundle in the hair bundle through-hole is sandwiched between the pushing pin and the hair tapping pin, and the front end surface and the lower end surface are flattened. If the vibration width of the tapping is smaller than 0.5 mm, the hair shaping ability is lowered, and if it is larger than 1 mm, the hair bundle for hair is disturbed. In the step of inserting the hair bundle into the head flocking hole of the toothbrush and the hair welding step, a flapping vibration plate having a shape corresponding to the brush profile is provided, and the bristles of the bristles are pressed with the flapping vibration plate. Perform each processing.

本発明の歯ブラシ製造方法によるときは、以下のような優れた効果を奏することができる。
(1)毛先に不揃いのない高品質なテーパー用毛歯ブラシを平線なし植毛によって効率よく、かつ、安定的に製造することができる。
(2)非テーパー端部側を用毛押出しピンと毛束押出しピンを用いて押すことにより、正確かつ容易に毛束相当分のテーパー用毛を切り出して植毛穴に植毛することができる。
(3)用毛移動カセットの毛束用貫通孔およびヘッド部植毛穴への用毛の挿入を先の尖ったテーパー先端側から行なうので、毛束を適度に圧縮固定することができ、搬送中の用毛乱れを防止することができる。
(4)毛束押出しピンに連動する振動毛叩き装置により、毛束の挿入工程での用毛乱れを防止することができる。
(5)刷毛プロファイルに対応した先端面形状、ピン長さからなる毛束押出しピンを用い、非テーパー端部側を押し出すことにより、複雑な刷毛プロファイルを容易に形成することができる。
(6)毛皿と用毛押出しピンのセットを追加するだけで、簡単に複数種類のテーパー用毛を導入することができ、また、ヘッド部植毛穴への毛束押出しピンの形状や長さを変更するだけで容易に多様な刷毛プロファイルの歯ブラシを製造することができる。
When the toothbrush manufacturing method of the present invention is used, the following excellent effects can be obtained.
(1) It is possible to efficiently and stably manufacture a high-quality taper toothbrush having no irregularities on the hair tips by flocking without a flat wire.
(2) By pressing the non-tapered end side with a hair pushing pin and a hair bundle pushing pin, it is possible to cut out the taper hair corresponding to the hair bundle accurately and easily and plant it in the flock hole.
(3) Since the hair is inserted into the hair bundle through hole of the hair movement cassette and the head flocking hole from the pointed end of the taper, the hair bundle can be appropriately compressed and fixed and is being conveyed. Can prevent hair turbulence.
(4) By the vibrating hair tapping device interlocked with the hair bundle push-out pin, it is possible to prevent hair turbulence in the hair bundle insertion process.
(5) A complex brush profile can be easily formed by extruding the non-tapered end side using a hair bundle extrusion pin having a tip surface shape and a pin length corresponding to the brush profile.
(6) Simply by adding a set of hair plates and hair extrusion pins, it is possible to easily introduce multiple types of taper hair, and the shape and length of the hair bundle extrusion pins into the head flocking hole. It is possible to easily manufacture toothbrushes with various brush profiles simply by changing the above.

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。
図1〜図6に、本発明の第1の実施の形態を示す。
図1は歯ブラシ製造ラインの全体構成を示す図、図2〜図6は各処理工程の動作説明図である。この第1の実施の形態の歯ブラシ製造ラインは、毛皿ステーション、植毛ステーション、毛束固定ステーション、ヘッド背面被覆ステーションの4つのステーションから構成されている。
Embodiments of the present invention will be described below with reference to the drawings.
1 to 6 show a first embodiment of the present invention.
FIG. 1 is a diagram showing an overall configuration of a toothbrush production line, and FIGS. 2 to 6 are operation explanatory views of each processing step. The toothbrush production line of the first embodiment is composed of four stations: a hair dish station, a flocking station, a hair bundle fixing station, and a head back coating station.

毛皿ステーションは、用毛ピース供給用の毛皿11、用毛ピース押出し装置12、用毛プッシャー13、第1の振動毛叩き装置14、第2の振動毛叩き装置15から構成されている。用毛押出し装置12の押出し板12aの上面部には、用毛移動カセットCの毛束用貫通孔2(図5参照)に対応して押出しピン12bが立設されている。また、第2の振動毛叩き装置15の振動板15aの下面部には、用毛移動カセットCの毛束用貫通孔2内に挿入可能な毛叩きピン15bが垂設されている。   The hair dish station comprises a hair dish 11 for supplying hair pieces, a hair piece pushing device 12, a hair pusher 13, a first vibrating hair tapping device 14, and a second vibrating hair tapping device 15. Extrusion pins 12b are erected on the upper surface of the extrusion plate 12a of the bristle pushing device 12 so as to correspond to the hair bundle through holes 2 of the bristle moving cassette C (see FIG. 5). Further, on the lower surface portion of the vibration plate 15a of the second vibrating hair tapping device 15, a hair tapping pin 15b that can be inserted into the hair bundle through hole 2 of the hair moving cassette C is suspended.

植毛ステーションは、毛束押出し装置16、第3の振動毛叩き装置17から構成されている。毛束押出し装置16の押出し板16aの上面部には、用毛移動カセットCの毛束用貫通孔2に対応して毛束押出しピン16bが立設されている。   The flocking station includes a hair bundle pushing device 16 and a third vibrating hair tapping device 17. On the upper surface of the extrusion plate 16a of the hair bundle pushing device 16, a hair bundle pushing pin 16b is erected corresponding to the hair bundle through-hole 2 of the hair movement cassette C.

毛束固定ステーションは、非接触熱板18aを備えた毛束溶融装置18、平面状の振動板19aを備えた第4の振動毛叩き装置19から構成されている。また、ヘッド背面被覆ステーションは、成形金型20、射出成形装置21から構成されている。   The hair bundle fixing station includes a hair bundle melting device 18 provided with a non-contact hot plate 18a and a fourth vibrating hair tapping device 19 provided with a planar vibration plate 19a. The head back surface coating station is composed of a molding die 20 and an injection molding device 21.

第1の実施の形態は、上記構成になる歯ブラシ製造ラインにおいて次のようにして実施される。   1st Embodiment is implemented as follows in the toothbrush manufacturing line which becomes the said structure.

[1] 用毛移動カセットへの毛束の供給工程(図2参照)
片端テーパー用毛ピース1(ポリブチレンテレフタレート、用毛最大径=0.19μm、テーパー毛先径=0.01mm、用毛長=15±0.5mm)を準備する。この片端テーパー用毛ピース群を非テーパー端側が毛皿底面板に接するように整えて毛皿11上にセットする。そして、テーパー毛先側を第1の振動毛叩き装置14によって随時整えながら、毛皿11の用毛供給側から用毛プッシャー13により1.5kg/cm程度の圧力を加えて用毛ピース押出し装置12側へ向けて押し込む。
[1] Hair bundle supply process to the hair moving cassette (see FIG. 2)
One end taper hair piece 1 (polybutylene terephthalate, maximum hair diameter = 0.19 μm, taper tip diameter = 0.01 mm, hair length = 15 ± 0.5 mm) is prepared. The hair piece group for one end taper is arranged on the hair plate 11 so that the non-taper end side is in contact with the hair plate bottom plate. Then, while adjusting the tapered hair end side with the first vibrating hair tapping device 14 at any time, a hair pusher 13 applies a pressure of about 1.5 kg / cm 2 from the hair supply side of the hair plate 11 to push out the hair piece. Push toward the device 12 side.

これと同時に、歯ブラシヘッド部の植毛穴に対応した毛束用貫通孔2(図5参照)を備えた用毛移動カセットC(厚さ=15mm)を毛皿先端部の用毛ピース上にセットし、毛皿底面側から非テーパー端部を用毛押出しピン12aで押し上げ、毛束を用毛移動カセットCの各毛束用貫通孔2に挿入する。このとき、各貫通孔2に挿入される毛束の用毛充填率は65%に設定する。用毛押出しピン12bの先端面は、用毛が毛束断面方向に位置ずれを起こすことを防ぐため、ヤスリ目状とされている。   At the same time, the bristle movement cassette C (thickness = 15 mm) provided with the bristle through hole 2 (see FIG. 5) corresponding to the flock hole of the toothbrush head is set on the bristle piece at the tip of the hair dish. Then, the non-tapered end portion is pushed up by the hair pushing pin 12a from the hair dish bottom surface side, and the hair bundle is inserted into each hair bundle through hole 2 of the hair moving cassette C. At this time, the hair filling rate of the hair bundle inserted into each through-hole 2 is set to 65%. The front end surface of the hair pushing pin 12b has a file shape in order to prevent the hair from being displaced in the hair bundle cross-sectional direction.

上記毛束の挿入時、第2の振動毛叩き装置15(上下振動幅=0.5mm)の毛叩きピン15bを用毛押出し装置12の用毛押出しピン12bに連動して毛束用貫通孔内に進退させ、毛束の先端を毛叩きピン15bの先端面で叩いて整毛しながら、毛束を毛束用貫通孔2内に挿入する。   When the hair bundle is inserted, the hair tapping pin 15b of the second vibrating hair tapping device 15 (vertical vibration width = 0.5 mm) is linked with the hair pushing pin 12b of the hair pushing device 12, and the hair bundle through-hole The hair bundle is inserted into the hair bundle through hole 2 while adjusting the hair by striking the tip of the hair bundle with the tip surface of the hair tapping pin 15b.

[2] 歯ブラシハンドルのセット工程(図3参照)
次いで、用毛移動カセットCを毛束押出し装置16の毛束押出しピン16bの上までスライドして移動させるとともに、歯ブラシハンドル3(ヘッド部厚み=3mm)を用毛移動カセットCの上にセットし、用毛移動カセットCの貫通孔2群と歯ブラシヘッド部4の各植毛穴5の位置が一致するように設定する。
[2] Toothbrush handle setting process (see Fig. 3)
Next, the bristle movement cassette C is slid and moved onto the bristle bundle pushing pin 16b of the bristle bundle pushing device 16, and the toothbrush handle 3 (head thickness = 3 mm) is set on the bristle movement cassette C. The through hole 2 group of the bristle moving cassette C is set so that the positions of the flock holes 5 of the toothbrush head portion 4 coincide.

[3] ヘッド部植毛穴への植毛工程(図4参照)
次いで、第3の振動毛叩き装置17の平板状の振動板17aによってテーパー毛先を叩いて整毛しながら、各毛束用貫通孔2内の毛束6を毛束押出し装置16の押出しピン16bによって押し出し、各毛束6の先端が平切り形状(毛丈=10mm、非テーパー端側はヘッド部4背面側から2mm下方へ突出)となるように、歯ブラシヘッド部4の各植毛穴5に挿入する。なお、このときの用毛充填率は75%である。また、毛束押出しピン16bの先端面は、押し出される毛束が毛束断面方向に位置ずれを起こすことを防ぐため、ヤスリ目状とされている。
[3] Flocking process to head flocking hole (see Fig. 4)
Next, the hair bundle 6 in each of the hair bundle through-holes 2 is pushed out by the push pin of the hair bundle pushing device 16 while adjusting the hair by hitting the taper hair tip with the flat vibration plate 17a of the third vibrating hair tapping device 17. Each follicle hole 5 of the toothbrush head portion 4 is extruded by 16b so that the tips of the bristles 6 have a flat-cut shape (hair length = 10 mm, the non-tapered end protrudes 2 mm downward from the back side of the head portion 4). Insert into. In addition, the bristle filling rate at this time is 75%. Further, the front end surface of the hair bundle push-out pin 16b has a file shape in order to prevent the extruded hair bundle from being displaced in the hair bundle cross-sectional direction.

[4] 毛束の溶融固定工程(図5参照)
次いで、前記毛束植毛済みの歯ブラシハンドル3を毛束固定ステーションへ搬送し、第4の振動毛叩き装置19の振動板19aで毛先を叩いて整毛しながら、ヘッド部に植毛された各毛束6の非テーパー側端部を加熱溶融装置18の非接触熱板18aによって溶融(800℃、2秒)し、毛束6の基端部をヘッド部背面に溶着する。
[4] Step of melting and fixing the hair bundle (see FIG. 5)
Next, the toothbrush handle 3 with the hair bundle planted is conveyed to the hair bundle fixing station, and each hair planted on the head portion is struck by striking the hair tips with the vibration plate 19a of the fourth vibrating hair tapping device 19 The non-tapered end portion of the hair bundle 6 is melted (800 ° C., 2 seconds) by the non-contact hot plate 18a of the heating and melting device 18, and the base end portion of the hair bundle 6 is welded to the back surface of the head portion.

[5] ヘッド部背面の被覆工程(図6参照)
最後に、金型20と射出成形装置21を用いてヘッド部4の背面側にヘッド部構成樹脂(例えばポリプロピレン)を流し込んでヘッド部背面を覆うか、あるいは、ヘッド部背面側に合成樹脂製の蓋を被せ、該蓋を超音波などで接着してヘッド部背面を覆うことにより、刷毛プロファイルが平切り形状になるテーパー用毛歯ブラシを完成させる。
[5] Covering process on the back of the head (see FIG. 6)
Finally, the mold part 20 and the injection molding device 21 are used to pour the head part constituent resin (for example, polypropylene) into the back side of the head part 4 to cover the back of the head part, or the head part back side is made of synthetic resin. A taper toothbrush having a flat brush profile is completed by covering the lid and covering the back of the head portion by covering the lid with ultrasonic waves or the like.

図7に、本発明の第2の実施の形態を示す。
この第2の実施の形態は、刷毛径の異なる2種類のテーパー毛を植毛するとともに、植毛された毛束の先端を山切りカットに形成する場合の例を示すものである。2種類のテーパー毛に対応するために、それぞれのテーパー毛に対応する2つの毛皿ステーション1,2を用意するとともに、植毛ステーションの毛束押出し装置16の毛束押出しピン16b、振動毛叩き装置17の振動板17a、毛束固定ステーションの振動毛叩き装置19の振動板19aの先端面を、それぞれ刷毛プロファイルに合わせて山切り形状としている。他の部分の構成は前記第1の実施の形態と同様である。
FIG. 7 shows a second embodiment of the present invention.
This second embodiment shows an example in which two types of tapered hairs having different brush diameters are planted, and the tip of the planted hair bundle is formed into a mountain cut. In order to cope with two kinds of tapered hairs, two hair plate stations 1 and 2 corresponding to the respective tapered hairs are prepared, the hair bundle pushing pin 16b of the hair bundle pushing device 16 of the flocking station, and the vibrating hair tapping device. The front end surface of the vibration plate 17a of the 17 and the vibration plate 19a of the vibration bristle tapping device 19 of the hair bundle fixing station are formed in a mountain shape according to the brush profile. The configuration of other parts is the same as that of the first embodiment.

[1] 用毛移動カセットへの毛束の供給工程
2種類の片端テーパー用毛ピース1A,1B(用毛ピース1A:ポリブチレンテレフタレート、用毛最大径=0.19mm、テーパー毛先径=0.01mm、用毛長=17±0.5mm、用毛ピース1B:ポリブチレンテレフタレート、用毛最大径=0.22mm、テーパー毛先径=0.08mm、用毛長=17±0.5mm)を準備する。
[1] Step of supplying hair bundle to hair moving cassette Two kinds of one-end tapered hair pieces 1A, 1B (hair piece 1A: polybutylene terephthalate, hair maximum diameter = 0.19 mm, taper tip diameter = 0 .01 mm, hair length = 17 ± 0.5 mm, hair piece 1B: polybutylene terephthalate, hair maximum diameter = 0.22 mm, taper tip diameter = 0.08 mm, hair length = 17 ± 0.5 mm) Prepare.

片端テーパー用毛ピース1Aは、毛皿ステーション1の毛皿11A上に非テーパー端側が毛皿底面板に接するように整えてセットし、毛皿の用毛供給側から用毛プッシャー13Aにより2.0kg/cmの圧力を加えて押し込む。一方、片端テーパー用毛ピース1Bは、毛皿ステーション2の毛皿11B上に非テーパー端側が毛皿底面板に接するように整えてセットし、毛皿の用毛供給側から用毛プッシャー13Bにより2.0kg/cmの圧力を加えて押し込む。 The one-end tapered hair piece 1A is set on the hair plate 11A of the hair plate station 1 so that the non-tapered end side is in contact with the bottom plate of the hair plate, and 2. Apply pressure of 0 kg / cm 2 and push in. On the other hand, the one-side tapered hair piece 1B is set on the hair plate 11B of the hair plate station 2 so that the non-tapered end side is in contact with the bottom plate of the hair plate, and the hair pusher 13B is used from the hair supply side of the hair plate. Apply a pressure of 2.0 kg / cm 2 and push in.

これと同時に、歯ブラシヘッド部の植毛穴に対応した毛束用貫通孔を備えた用毛移動カセットC(厚さ=17mm)を毛皿ステーション1の毛皿先端部の用毛上にセットし、毛皿底面側から非テーパー端部を用毛押出し装置12Aの用毛押出しピン12Abで押し上げ、用毛をカセットの中央部に位置する毛束貫通孔に挿入する。このとき、用毛ピース1Aからなる各毛束の用毛充填率を65%に設定する。また、用毛押出しピン12Abの先端面は、用毛が毛束断面方向に位置ずれを起こすことを防ぐため、ヤスリ目状とされている。   At the same time, a bristle movement cassette C (thickness = 17 mm) provided with a bristle through hole corresponding to the flock hole of the toothbrush head portion is set on the hair at the tip of the hair plate of the hair plate station 1, The non-tapered end portion is pushed up from the bottom surface side of the hair plate by the hair push-out pin 12Ab of the hair push-out device 12A, and the hair is inserted into the hair bundle through-hole located at the center of the cassette. At this time, the hair filling rate of each hair bundle composed of the hair piece 1A is set to 65%. Further, the front end surface of the hair push-out pin 12Ab has a file shape in order to prevent the hair from being displaced in the hair bundle cross-sectional direction.

上記毛束の挿入時、振動毛叩き装置15A)の毛叩きピン15Abを用毛押出し装置12Aの用毛押出しピン12Abに連動して毛束用貫通孔内に進退させ、毛束の先端を毛叩きピン15Abの先端面で叩いて整毛しながら、毛束を毛束用貫通孔内に挿入する。   At the time of inserting the above-mentioned hair bundle, the hair tapping pin 15Ab of the vibrating hair tapping device 15A) is moved back and forth in the hair bundle through-hole in conjunction with the hair pushing pin 12Ab of the hair pushing device 12A, and the tip of the hair bundle is moved. The hair bundle is inserted into the hair bundle through-hole while adjusting the hair by hitting with the tip surface of the tapping pin 15Ab.

上記用毛1Aの挿入が終了したら、用毛移動カセットCを隣接する毛皿ステーション2までスライドして移動させ、同様な方法で用毛ピース1Bを残りの毛束貫通孔に整毛しながら挿入する。なお、用毛ピース1Bからなる各毛束の用毛充填率も65%に設定する。   When the insertion of the hair 1A is finished, the hair moving cassette C is slid to the adjacent hair plate station 2 and moved, and the hair piece 1B is inserted into the remaining hair bundle through-holes in the same manner while inserting the hair. To do. In addition, the hair filling rate of each hair bundle composed of the hair piece 1B is also set to 65%.

[2] 歯ブラシハンドルのセット工程
次いで、用毛移動カセットCを毛束押出し装置16の毛束押出しピン16bの上までスライドして移動させるとともに、歯ブラシハンドル3(ヘッド部厚み=3mm)を用毛移動カセットCの上にセットし、用毛移動カセットCの貫通孔2群と歯ブラシヘッド部4の各植毛穴の位置が一致するように設定する。
[2] Toothbrush handle setting step Next, the bristle moving cassette C is slid and moved onto the bristle bundle pushing pin 16b of the bristle bundle pushing device 16, and the toothbrush handle 3 (head portion thickness = 3 mm) is used. It sets on the movement cassette C, and it sets so that the position of each flock hole of the through-hole 2 group of the bristle movement cassette C and the toothbrush head part 4 may correspond.

[3] ヘッド部植毛穴への植毛工程
次いで、振動毛叩き装置17の山形をした振動板17aによってテーパー毛先を叩いて山形に整毛しながら、各毛束用貫通孔2内の毛束6を毛束押出し装置16の山形をした押出しピン16bによって押し出し、各毛束6の先端が山切り形状(毛丈=12mm、山谷差=2mm、非テーパー端側はヘッド部4の背面側から3mm下方へ突出)となるように、歯ブラシヘッド部4の各植毛穴に挿入する。なお、このときの用毛充填率は75%である。また、毛束押出しピン16bの山形をした先端面は、押し出される毛束が位置ずれを起こすことを防ぐため、ヤスリ目状とされている。
[3] Step of planting into the head planting hole Next, the hair bundles in the through-holes 2 for each of the hair bundles are adjusted while the tapered bristle plate 17a of the vibrating bristle hitting device 17 is used to strike the taper hair tips to adjust the hair shape. 6 is extruded by an extrusion pin 16b having a mountain shape of the hair bundle extrusion device 16, and the tip of each hair bundle 6 is cut into a mountain shape (hair length = 12 mm, difference between peaks and valleys = 2 mm, the non-tapered end side from the back side of the head portion 4 It is inserted into each flocked hole of the toothbrush head part 4 so as to project 3 mm downward). In addition, the bristle filling rate at this time is 75%. Further, the chevron-shaped tip surface of the hair bundle push-out pin 16b has a file shape to prevent the hair bundle to be pushed out from being displaced.

[4] 毛束の溶融固定工程
次いで、前記毛束植毛済みの歯ブラシハンドル3を毛束固定ステーションへ搬送し、第4の振動毛叩き装置19の振動板19aで毛先を叩いて整毛しながら、ヘッド部に植毛された各毛束6の非テーパー側端部を加熱溶融装置18の非接触熱板18aによって溶融(800℃、2秒)し、毛束6の基端部をヘッド部背面に溶着する。
[4] Step of melting and fixing the hair bundle Next, the toothbrush handle 3 on which the hair bundle has been implanted is transported to the hair bundle fixing station, and the hair is beaten with the vibration plate 19a of the fourth vibrating hair tapping device 19 to adjust the hair. However, the non-tapered end of each hair bundle 6 planted in the head part is melted (800 ° C., 2 seconds) by the non-contact hot plate 18a of the heating and melting device 18, and the base end part of the hair bundle 6 is moved to the head part. Weld on the back.

[5] ヘッド部背面の被覆工程
最後に、金型20と射出成形装置21を用いてヘッド部4の背面側にヘッド部構成樹脂(例えばポリプロピレン)を流し込んでヘッド部背面を覆うか、あるいは、ヘッド部背面側に合成樹脂製の蓋を被せ、該蓋を超音波などで接着してヘッド部背面を覆うことにより、刷毛プロファイルが山切りカットのテーパー用毛歯ブラシを完成させる。
[5] Covering process on the back of the head part Finally, the mold part 20 and the injection molding apparatus 21 are used to cover the back of the head part by pouring a head part constituent resin (for example, polypropylene) into the back side of the head part 4, or A cover made of synthetic resin is put on the back side of the head part, and the cover is adhered with ultrasonic waves to cover the back side of the head part, thereby completing a taper toothbrush with a brush profile cut in a mountain cut.

本発明の第1の実施の形態を示すもので、歯ブラシ製造ラインの全体構成を示す図である。BRIEF DESCRIPTION OF THE DRAWINGS The 1st Embodiment of this invention is shown and it is a figure which shows the whole structure of a toothbrush production line. 第1の実施の毛位置における用毛移動カセットへの毛束の供給工程の説明図である。It is explanatory drawing of the supply process of the hair | bristle bundle to the hair movement cassette in the hair position of 1st implementation. 第1の実施の毛位置における歯ブラシハンドルのセット工程の説明図である。It is explanatory drawing of the setting process of the toothbrush handle in the bristle position of 1st implementation. 第1の実施の毛位置におけるヘッド部植毛穴への植毛工程の説明図である。It is explanatory drawing of the flocking process to the head part flocking hole in the hair position of 1st implementation. 第1の実施の毛位置における毛束の溶融固定工程の説明図である。It is explanatory drawing of the fusion | melting fixing process of the hair | bristle bundle in the hair position of 1st implementation. 第1の実施の毛位置におけるヘッド部背面の被覆工程の説明図である。It is explanatory drawing of the covering process of the head part back surface in the hair position of 1st implementation. 本発明の第2の実施の形態を示すもので、歯ブラシ製造ラインの全体構成を示す図である。The 2nd Embodiment of this invention is shown and it is a figure which shows the whole structure of a toothbrush production line.

符号の説明Explanation of symbols

1,1A,1B 片端テーパー用毛ピース
2 毛束用貫通孔
3 歯ブラシハンドル
4 ヘッド部
5 植毛穴
6 毛束
11 毛皿
12 用毛押出し装置
12c 用毛押出しピン
13 用毛プッシャー
14, 振動毛叩き装置
15 振動毛叩き装置
15a 振動板
15b 毛叩きピン
16 毛束押出し装置
16a 押出し板
16b 毛束押出しピン
17 振動毛叩き装置
17a 振動板
18 溶融加熱装置
18a 非接触加熱板
19 振動毛叩き装置
19a 振動板
20 成形金型
21 射出成形装置
11A,11B 毛皿
12A,12B 用毛押出し装置
12Aa,12Ba 押出し板
12Ab,12Bb 用毛押出しピン
13A,13B 用毛プッシャー
15A,15B 振動毛叩き装置
15Aa,15Ba 振動板
15Ab,15Bb 毛叩きピン
C 用毛移動カセット
1, 1A, 1B One end taper bristle piece 2 Hair bundle through-hole 3 Toothbrush handle 4 Head part 5 Planting hole 6 Hair bundle 11 Hair plate 12 Hair pusher 12c Hair pusher pin 13 Hair pusher 14 Vibration vibrator Device 15 Vibrating hair tapping device 15a Vibration plate 15b Hair tapping pin 16 Hair bundle pushing device 16a Pushing plate 16b Hair bundle pushing pin 17 Vibrating hair tapping device 17a Vibrating plate 18 Melting heating device 18a Non-contact heating plate 19 Vibrating hair tapping device 19a Vibration Plate 20 Mold 21 Injection molding device 11A, 11B Hair extrusion device 12A, 12B Hair extrusion device 12Aa, 12Ba Extrusion plate 12Ab, 12Bb Hair extrusion pin 13A, 13B Hair pusher 15A, 15B Vibrating tapping device 15Aa, 15Ba Vibration Board 15Ab, 15Bb Hair tapping pin C Hair moving cassette The

Claims (4)

ヘッド部に片端テーパー用毛からなる刷毛を植設した歯ブラシの製造方法であって、
片端テーパー用毛ピースをその非テーパー端側が毛皿底面板に接するように毛皿上にセットするとともに、該片端テーパー用毛ピースの上に歯ブラシヘッド部の植毛穴に対応した毛束用貫通孔を形成された用毛移動カセットを配置し、
用毛押出しピンによって非テーパー端側から片端テーパー用毛を押し出すことにより、毛束に対応する本数の用毛を切り出すと同時に該切り出した毛束を用毛移動カセットの毛束用貫通孔に挿入し、
次いで、該用毛移動カセットの上に歯ブラシハンドルをそのヘッド部背面が用毛移動カセットと向き合うようにセットした後、毛束押出しピンによって毛束用貫通孔内の毛束をヘッド部背面側から押し出すことにより、毛束をヘッド部背面側からヘッド部の植毛穴に挿入し、
次いで、前記植毛穴に挿入された毛束の非テーパー端部をヘッド部背面側から加熱して溶融することにより、非テーパー端部をヘッド部背面に溶着し、
次いで、ヘッド部背面側をヘッド部構成樹脂によって覆うことにより、テーパー用毛歯ブラシを得ることを特徴とする歯ブラシ製造方法。
A method for producing a toothbrush in which a brush composed of one end taper bristles is implanted in the head part,
Set the hair piece for one end taper on the hair plate so that the non-tapered end side is in contact with the bottom plate of the hair plate, and on the hair piece for one end taper, the hair bundle through hole corresponding to the flock hole of the toothbrush head portion Place the formed hair moving cassette,
By extruding one end tapered bristles from the non-tapered end side with a hair extruding pin, the number of bristles corresponding to the hair bundle is cut out and the cut hair bundle is inserted into the hair bundle through hole of the hair moving cassette And
Next, after setting the toothbrush handle on the bristle movement cassette so that the back of the head part faces the bristle movement cassette, the bristle bundle in the through hole for the bristle bundle is moved from the back side of the head part by the bristle bundle pushing pin. By pushing out, the hair bundle is inserted from the back side of the head part into the flock hole of the head part,
Next, by heating and melting the non-tapered end of the hair bundle inserted into the flocking hole from the back side of the head part, the non-tapered end part is welded to the back of the head part,
Next, the toothbrush manufacturing method, wherein a taper toothbrush is obtained by covering the back surface side of the head portion with the resin constituting the head portion.
片端テーパー用毛を用毛移動カセットの毛束用貫通孔に挿入するときの用毛充填率(用毛基部径総断面積/貫通穴面積×100%)を60%以上、70%未満とし、用毛移動カセットから歯ブラシヘッド部の植毛穴に毛束を挿入するときの用毛充填率を70%以上、80%未満とし、用毛移動カセットの毛束用貫通孔への毛束の挿入、歯ブラシヘッド部の植毛穴への毛束の挿入の順に毛束を順次圧縮しながら植毛することを特徴とする請求項1記載の歯ブラシ製造方法。   The hair filling rate (the hair base diameter total cross-sectional area / through hole area × 100%) when inserting one end taper bristles into the hair bundle through hole of the hair moving cassette is 60% or more and less than 70%, Insertion of the hair bundle into the hair bundle through-hole of the hair movement cassette, wherein the hair filling rate when inserting the hair bundle from the hair movement cassette into the flock hole of the toothbrush head portion is 70% or more and less than 80%; The toothbrush manufacturing method according to claim 1, wherein the bristles are planted while sequentially compressing the bristles in the order of insertion of the bristles into the bristles of the toothbrush head portion. 用毛移動カセットの毛束用貫通孔と同一断面形状からなる毛叩きピンを備えた振動毛叩き装置を毛束用貫通孔の用毛挿入側と反対側の開口部に配置し、毛叩きピンを毛束に連動して毛束用貫通孔内に進退させ、毛束の先端を振動する毛叩きピンの先端で叩いて整毛しながら毛束を毛束用貫通孔に挿入していくことを特徴とする請求項1または2記載の歯ブラシ製造方法。   A vibrating hair tapping device having a hair tapping pin having the same cross-sectional shape as the hair bundle through hole of the hair moving cassette is disposed at the opening on the opposite side to the hair insertion side of the hair bundle through hole, and the hair tapping pin The hair bundle is inserted into the hair bundle through-hole while adjusting the hair by striking with the tip of the hair tapping pin that vibrates the tip of the hair bundle in conjunction with the hair bundle. The toothbrush manufacturing method of Claim 1 or 2 characterized by these. 同一長さの片端テーパー用毛を用い、毛束押出しピンの先端部形状および/またはピンの長さを刷毛プロファイルに対応させて変えることを特徴とする請求項1〜3のいずれかに記載の歯ブラシ製造方法。   The tip end shape of the hair bundle extrusion pin and / or the length of the pin are changed in accordance with the brush profile using single-end tapered bristles of the same length. Toothbrush manufacturing method.
JP2004361499A 2004-12-14 2004-12-14 Toothbrush production method Pending JP2006167027A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008036300A (en) * 2006-08-09 2008-02-21 Kao Corp Bristle supplying apparatus
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
US20110109149A1 (en) * 2008-06-07 2011-05-12 Trisa Holding Ag Method for producing toothbrushes bristled in an anchorless manner
USRE47468E1 (en) 2001-12-28 2019-07-02 Trisa Holding Ag Toothbrush and process for producing such a toothbrush
US10405642B2 (en) 2002-12-19 2019-09-10 Trisa Holding Ag Toothbrush and process for producing the same
KR102214841B1 (en) * 2019-12-19 2021-02-09 임상호 Manufacturing apparatus for multi-fine toothbrush hairs
US11219303B2 (en) 2016-04-20 2022-01-11 Trisa Holding Ag Brush product and method for the production thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE47468E1 (en) 2001-12-28 2019-07-02 Trisa Holding Ag Toothbrush and process for producing such a toothbrush
US10405642B2 (en) 2002-12-19 2019-09-10 Trisa Holding Ag Toothbrush and process for producing the same
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
JP2008036300A (en) * 2006-08-09 2008-02-21 Kao Corp Bristle supplying apparatus
US20110109149A1 (en) * 2008-06-07 2011-05-12 Trisa Holding Ag Method for producing toothbrushes bristled in an anchorless manner
US8534769B2 (en) * 2008-06-07 2013-09-17 Trisa Holding Ag Method for producing toothbrushes bristled in an anchorless manner
US9173480B2 (en) 2008-06-07 2015-11-03 Trisa Holding Ag Method for producing toothbrushes covered with bristles in an anchor-free manner
US11219303B2 (en) 2016-04-20 2022-01-11 Trisa Holding Ag Brush product and method for the production thereof
KR102214841B1 (en) * 2019-12-19 2021-02-09 임상호 Manufacturing apparatus for multi-fine toothbrush hairs

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