JPH0956476A - Brush and its manufacture - Google Patents
Brush and its manufactureInfo
- Publication number
- JPH0956476A JPH0956476A JP24230095A JP24230095A JPH0956476A JP H0956476 A JPH0956476 A JP H0956476A JP 24230095 A JP24230095 A JP 24230095A JP 24230095 A JP24230095 A JP 24230095A JP H0956476 A JPH0956476 A JP H0956476A
- Authority
- JP
- Japan
- Prior art keywords
- fused
- brush
- substrate
- hair bundle
- hair
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/42—Brushes
- B29L2031/425—Toothbrush
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、歯ブラシ、ヘアー
ブラシなどプラスチック製刷毛部と柄部とを互に一体化
した形態のブラシの製造法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a brush such as a toothbrush or a hairbrush in which a plastic brush portion and a handle portion are integrated with each other.
【０００２】[0002]
【従来の技術】最近、柄部にある植毛孔に毛束が金属小
片、金属線材を用いて固定されているブラシに代って、
プラスチックからなる刷毛と柄部とを互に溶着して一体
化することが提案されている。従来、この種の溶着ブラ
シでは、熱融着（特開昭６０−２４１４０４、特開平２
−９９００２、特開平４−２２６１０号公報）のほかに
集束された刷毛の一端部を溶融し、かつヘッドまたはプ
レート状の肥大部若しくは融合塊に成形して、この集束
された刷毛の肥大部を柄部成形用金型中に導入し、柄部
のプラスチック材料を射出充填してのち、プラスチック
の硬化によって、それぞれの毛束が柄部中に一体固定化
するインモールドタイプが知られている（特公昭６１−
２６８２０８号公報、特表平２−５０３１５０号公
報）。さらに、毛束を１束づつ固定するのではなく、毛
束全体の端部を融合させて基板とし、ブラシ台に接合す
る方法（特公昭４２−５７９７）も提案されている。2. Description of the Related Art Recently, instead of a brush in which a bunch of hair is fixed to a hair-implanting hole in a handle using a metal piece or a metal wire,
It has been proposed that a brush made of plastic and a handle be welded together to be integrated. Conventionally, in this kind of welding brush, heat fusion (Japanese Patent Application Laid-Open No. 60-241404, Japanese Patent Application Laid-Open No. 2-212058).
No. 99002, Japanese Patent Laid-Open No. 4-22610), one end of the bristles that have been bundled is melted and formed into a head- or plate-shaped thickened portion or a fused mass, and the thickened portion of the bristled brushes is An in-mold type is known in which a hair material is introduced into a handle mold, injection-filled with a plastic material for the handle portion, and then each hair bundle is integrally fixed in the handle portion by curing the plastic ( Japanese Patent Publication 61-
No. 268208, and Japanese Patent Laid-Open No. 2-503150). Further, instead of fixing the hair bundles one by one, a method has been proposed in which the ends of the whole hair bundle are fused to form a substrate, and the hair bundle is joined to a brush base (Japanese Patent Publication No. 42-5797).
【０００３】[0003]
【発明が解決しようとする課題】従来法の毛束の端部に
融合塊をつくり、熱融着したりインモールドする方法で
は、植毛強度（成形体からの毛束の抜けにくさ）を高め
るためには、毛束融合塊を金型内へ深く挿入した状態で
成形材料を金型内に射出することが好ましいが、融着が
強固にできなかったり、射出成形時の圧力で成形材料
が、貫通孔から流出してバリが生じるといった欠点があ
り、植毛面から飛び出たバリは、製品外観を損ない、か
つ、大きいバリは口腔内を傷つける恐れがあるほか、植
毛強度が低く毛束抜けによる支障が多く信頼性の上で問
題であるし、金型システムが複雑となるし、毛束の融合
塊がハンドル表面近くにあるため、植毛強度を十分満足
できるものでもなく、毛束の植毛根元部から外方に広が
りやすく毛立が悪い欠点もあった。これら欠点を解決で
きるブラシ台に毛束基板を接着するものでは、毛束全体
の端部を融合させて１つの基板とするために、大変効率
的であるが、ハンドル側面に、接着部が露出するため、
接着剤のはみ出しによる汚れの発生といった問題があっ
た。本発明は、これら従来の欠点を容易に排除しようと
するもので、毛束全体の端部を融合させて基板とし、該
基板をブラシ台に接合する方法において、接合部からの
接着剤のはみ出しによる汚れの発生がなく、かつ、接合
強度の高いブラシを製造するのに簡単な金型構造で、特
別な金型システムを必要とせずに、植毛強度も高い、毛
立ちの良い植毛状態が得られる有効な方法を提供しよう
とすることにある。SUMMARY OF THE INVENTION In the conventional method of forming a fused mass at the end of a hair bundle, heat-sealing or in-molding the hair, the strength of hair transplant (hardness of the hair bundle from the molded body) is increased. In order to do so, it is preferable to inject the molding material into the mold while the hair bundle fusion mass is deeply inserted into the mold, but it is not possible to firmly bond the molding material, or the molding material is pressed by the pressure during injection molding. However, there is a defect that burr flows out from the through hole, and burr jumping from the flocked surface impairs the appearance of the product, and large burr may damage the oral cavity, and the flocking strength is low and hair bristles may come out. There are many obstacles and it is a problem on reliability, the mold system is complicated, and the fused mass of the hair bundle is near the handle surface, so the hair transplant strength is not sufficiently satisfied, and the root of the hair transplant of the hair bundle is not satisfied. It is easy to spread from the outer part and the hair is bad There was also a point. Bonding the bristle bundle substrate to the brush stand that can solve these drawbacks is very efficient because the ends of the entire bristle bundle are fused to form a single substrate, but the adhesive portion is exposed on the side surface of the handle. In order to
There was a problem that stains were generated due to the protrusion of the adhesive. The present invention is intended to easily eliminate these conventional drawbacks. In the method of fusing the ends of the entire hair bundle to form a substrate, and bonding the substrate to a brush base, the adhesive is extruded from the bonding part. It is a mold structure that is easy to produce a brush with high bonding strength, without the generation of dirt due to, and without the need for a special mold system, it has a high bristle strength and a flocked state with good bristling. It is to try to provide an effective method that can be done.
【０００４】[0004]
【課題を解決するための手段】本発明は、熱可塑性合成
樹脂よりなる刷毛を金型に多数形成した毛束貫通孔に挿
通し、該貫通孔より突出する複数の毛束端を加熱手段で
互いに融合して基板とすると共に、該融合基板をハンド
ルヘッド部に備えた凹部に嵌合収納して、接着手段或い
は該凹部の外周部を加熱加圧して内側に折曲げ若しくは
押圧する接合手段で一体化することで、植毛強度の高い
毛立ちの良好なブラシとするものである。According to the present invention, a brush made of a thermoplastic synthetic resin is inserted into a hair bundle through hole formed in a mold, and a plurality of hair bundle ends projecting from the through hole are heated by a heating means. The substrates are fused with each other, and the fused substrates are fitted and housed in a recess provided in the handle head portion, and the bonding means or a joining means for bending or pressing the outer periphery of the recess by heating or pressing the recess inward. By integrating the brushes, a brush with high bristle strength and good bristling is obtained.
【０００５】[0005]
【発明の実施の形態】このブラシ製造方法では、熱可塑
性合成樹脂よりなる刷毛の毛束多数を配列して金型の毛
束貫通孔に挿通し、該貫通孔より突出する毛束端を加熱
手段で加熱溶融圧着して毛束相互を融合し基板とすると
共に、あらかじめ毛束融合基板が入る大きさの凹部を有
する刷子ヘッド部に、毛束融合基板を収納してこれらを
接着手段で接合することにより、ハンドル側面に、接合
部が露出せず、接着剤のはみ出しによる汚れの発生を防
止でき、またヘッド部凹部の外周部を加熱により可塑性
にした後、加圧して外周部を内側に押し倒すことによ
り、接合強度の高いブラシとすることとなり、特別な金
型システムを必要とせずに、植毛強度が高く、毛立ちの
良い植毛状態が得られ、外観品位良好なブラシを得るこ
とができる。BEST MODE FOR CARRYING OUT THE INVENTION In this brush manufacturing method, a large number of hair bundles of a brush made of a thermoplastic synthetic resin are arranged and inserted into the hair bundle through holes of a mold, and the hair bundle ends protruding from the through holes are heated. By means of heating, melting and pressing, the hair bundles are fused together to form a substrate, and the hair bundle fusion substrate is housed in the brush head part that has a recess large enough to receive the hair bundle fusion substrate in advance, and these are bonded by the adhesive means. By doing so, the joint part is not exposed on the side surface of the handle, it is possible to prevent the occurrence of dirt due to the adhesive squeezing out, and after heating the outer peripheral portion of the head recessed portion to make it plastic, pressurize the outer peripheral portion to the inner side. By pushing it down, it becomes a brush with high bonding strength, and it is possible to obtain a brush with high appearance quality with high flocking strength, flocking state with good bristling, without requiring a special mold system. .
【０００６】[0006]
【実施例】本発明の実施例を図１乃至図５の例で説明す
ると、ハンドル成形用金型１０に備えられた毛束挿入用
の貫通孔１１に毛束１を導入して加熱手段のヒーター１
２で複数の毛束の一端をそろえて突出させ、該突出端部
を熱源１２1 による加熱で互いに溶融圧着して融合基板
２を形成し、該融合基板２をハンドルヘッド部３に備え
た凹部４に嵌合収納して、これらを接着剤、ホットメル
ト、粘着剤、加熱溶着、超音波による接着手段などで接
着するか、或いは接着したのち若しくは接着しないで該
凹部４の外周部５を加熱加圧して外周部を内側に折曲げ
若しくは押圧して、前記融合基板２を挟持接合させて植
毛強度の高い品質良好なブラシとしてある。EXAMPLE An example of the present invention will be described with reference to the examples of FIGS. 1 to 5. The hair bundle 1 is introduced into the hair bundle insertion through hole 11 provided in the handle molding die 10 to form the heating means. Heater 1
2, the ends of a plurality of hair bundles are aligned and protruded, and the protruding ends are melted and pressure-bonded to each other by heating by a heat source 12 1 to form a fused substrate 2, and the fused substrate 2 is a recess provided in the handle head portion 3. 4 are fitted and housed, and these are adhered by an adhesive, a hot melt, a pressure sensitive adhesive, a heat welding, an ultrasonic wave adhering means, or the like, or the outer peripheral portion 5 of the concave portion 4 is heated after or not adhered. By pressing and bending or pressing the outer peripheral portion inward, the fused substrate 2 is sandwiched and joined to form a brush with high flocking strength and good quality.
【０００７】この場合、前記融合基板２としては、凹陥
部１３のあるヒータを金型１０に圧接し、該凹陥部２に
挿入された毛束端１1 を溶融しつつ互に融合させて板状
に成形されるものであって、該融合基板２の外周部に段
部２1 、傾斜面部２2 或いは凹凸部２3 のいずれかを成
形したものをハンドルヘッド部３に埋設してある。ま
た、融合基板２は、加熱板で溶融圧着成形するもの或い
は加熱して融合塊を作ったのちに、成形板で成形する形
態で毛束相互を一体化したものが用いられるが、接着手
段を採用する場合には前記ハンドルヘッド部の凹部４の
深さは融合基板２の厚さと略等しくし接合手段を採用す
る際には凹部４の深さをやや深くして外周部が折曲げや
すくすることが配慮されている。In this case, as the fusion substrate 2, a heater having a concave portion 13 is pressed against the mold 10 and the hair bundle ends 1 1 inserted in the concave portion 2 are melted and fused together to form a plate. be one that is molded into Jo, are embedded stepped portion 2 1 to the outer peripheral portion of the fusion substrate 2, a material obtained by molding one of the inclined surface portion 2 2 or uneven portion 2 3 to the handle head portion 3. The fusion substrate 2 may be one that is melt-compression-molded with a heating plate, or one that is formed by molding a fusion lump after heating to integrate the hair bundles. When adopted, the depth of the recessed portion 4 of the handle head portion is approximately equal to the thickness of the fusion substrate 2, and when adopted the joining means, the depth of the recessed portion 4 is made slightly deep to facilitate bending of the outer peripheral portion. Is taken into consideration.
【０００８】図６の具体例では、前記融合基板２の外周
部に段部２1 を成形したもの（図７ａ）を用いたもの
で、ハンドルヘッド部３にある凹部４の外周部５を内側
に押し倒すことで、該段部２1 に沿って接合させ接着強
度をより一層高めてある。In the specific example shown in FIG. 6, a stepped portion 2 1 is formed on the outer peripheral portion of the fused board 2 (FIG. 7a), and the outer peripheral portion 5 of the recess 4 in the handle head portion 3 is placed inside. by pushing down on, are further enhanced bonding strength is joined along the stepped section 2 1.
【０００９】なお、前記融合基板２の成形には、ハンド
ルヘッド部との接合強度を高めるため図７に示す如く、
特定の形成にすることが配慮するが、段部２1 とするこ
と（図７ａ）に限らず、傾斜面部２2 とすること（図７
ｂ）で、外周部５の押し倒し加圧作業を容易にしつつ接
合強度も高めたり、凹凸部２3 を基板外周側面に形成し
たもの（図７ｃ）や、基板上面に形成したもの（図７
ｄ）で、外周部５との接合に強度を高めて毛束融合基板
２とハンドルヘッド部３との一体化に役立ててある。In order to increase the bonding strength with the handle head portion, the fused substrate 2 is molded as shown in FIG.
Although it is considered to form a specific shape, it is not limited to the stepped portion 2 1 (FIG. 7a) but the inclined surface portion 2 2 (FIG. 7A).
In b), the bonding strength is increased while facilitating the work of pushing down the outer peripheral portion 5 and the concavo-convex portion 2 3 is formed on the outer peripheral side surface of the substrate (FIG. 7c), or formed on the upper surface of the substrate (FIG. 7c).
In d), the strength of the joint with the outer peripheral portion 5 is increased, which is useful for the integration of the hair bundle fusion substrate 2 and the handle head portion 3.
【００１０】なお、本発明では、次に示す特徴的な構成
も含まれている。 熱可塑性合成樹脂よりなる刷毛の毛束を金型に多数
形成した毛束貫通孔に挿通し、該貫通孔より突出する毛
束端を加熱手段で融合して基板とすると共に、該融合基
板をハンドルヘッド部に備えた凹部に嵌合収納して、該
凹部の外周部を加熱加圧して内側に折曲げ若しくは押圧
して前記融合基板に被覆接合することを特徴とするブラ
シ製造方法。 前記融合基板が、凹陥部のあるヒータを金型に圧接
し、該凹陥部に挿入された毛束端を溶融しつつ互に融合
させて成形されるものであって、該融合基板の外周部に
段部、傾斜面部或いは凹凸部を成形する前項記載のブラ
シ製造方法。The present invention also includes the following characteristic configurations. A bunch of brushes made of a thermoplastic synthetic resin is inserted into a bunch of through holes formed in a mold, and ends of the bunch protruding from the through holes are fused by a heating means to form a substrate. A method for manufacturing a brush, characterized in that the brush head is fitted and stored in a recess provided in a handle head portion, and the outer peripheral portion of the recess is heated and pressed to be bent or pressed inward to cover and bond the fused substrate. The fused substrate is formed by pressing a heater having a recessed portion against a mold to fuse the ends of the hair bundles inserted in the recessed portion to each other while melting them, and the outer peripheral portion of the fused substrate. The method for manufacturing a brush as recited in the aforementioned Item, wherein a step portion, an inclined surface portion or an uneven portion is formed on the surface.
【００１１】[0011]
【発明の効果】本発明は、熱可塑性合成樹脂よりなる刷
毛の毛束を金型に多数形成した毛束貫通孔に挿通し、該
貫通孔より突出する複数の毛束端を加熱手段で互いに融
合して基板とすると共に、該融合基板をハンドルヘッド
部に備えた凹部に嵌合収納して、接着手段或いは接合手
段で一体化することによって、毛束融合基板をヘッド部
内に収納出来るため、刷子側面から見ても、接合部が露
出せず、外観が良く、また、接着剤のはみ出しもないの
で、口腔内で使用しても違和感がないし、また、ヘッド
部凹部の外周部を内側（毛束側）に折曲げる接合手段に
よって、接着強度を個々の毛束ごとに融着させた場合、
より一層高くすることができ、簡単な金型構造で十分な
植毛強度が得られ、かつ、毛立ちの良い植毛とすること
ができ、しかも品質良好で外観品位も信頼性も高いもの
とすることができるほか、生産性を大幅に向上させるこ
ともできる効果がある。According to the present invention, a hair bundle of a brush made of a thermoplastic synthetic resin is inserted into a hair bundle through hole formed in a mold, and a plurality of hair bundle ends protruding from the through hole are mutually heated by a heating means. Since the substrate is fused and the fused substrate is fitted and stored in the recess provided in the handle head portion and integrated by the bonding means or the joining means, the hair bundle fused substrate can be stored in the head portion. Even when viewed from the side of the brush, the joint is not exposed, the appearance is good, and the adhesive does not stick out, so it does not feel uncomfortable when used in the oral cavity. When the adhesive strength is fused for each individual hair bundle by the joining means that bends to the hair bundle side),
It is possible to make it even higher, to obtain sufficient flocking strength with a simple mold structure, and to achieve flocking with good fluffing, and also to have good quality, high appearance quality and high reliability. In addition to being able to improve productivity, there is an effect that productivity can be significantly improved.
【図１】本発明の実施例製法の工程説明図で、（ａ）は
毛束挿入工程、（ｂ）は融合基板成形工程程、（ｃ）は
離型工程を示す。FIG. 1 is a process explanatory view of a manufacturing method according to an embodiment of the present invention, in which (a) shows a hair bundle inserting step, (b) shows a fused substrate forming step, and (c) shows a releasing step.
【図２】図１の例で成形された毛束の拡大平面図及び縦
断面図である。2A and 2B are an enlarged plan view and a vertical sectional view of a hair bundle formed in the example of FIG.
【図３】成形時での分離状態の縦断面図である。FIG. 3 is a vertical cross-sectional view of a separated state at the time of molding.
【図４】図３の例の平面図である。FIG. 4 is a plan view of the example of FIG.
【図５】本発明の接合工程を示すヘッド部の拡大縦断面
図で、成形直前と成形直後を示す。FIG. 5 is an enlarged vertical cross-sectional view of the head part showing the joining step of the present invention, showing just before and just after molding.
【図６】本発明の他の実施例の接合工程の一部の拡大縦
断面図で、成形直前と成形直後を示す。FIG. 6 is an enlarged vertical sectional view of a part of the joining process of another embodiment of the present invention, showing immediately before and immediately after molding.
【図７】毛束の例のそれぞれ他の実施例の平面図及び縦
断面図である。7A and 7B are a plan view and a vertical sectional view, respectively, of another example of the hair bundle.
１ 毛束 １1 毛束端 ２ 融合基板 ２1 段部 ２2 傾斜面図 ３3 凹凸部 ３ ハンドルヘッド部 ４ 凹部 ５ 外周部 １０ 成形用金型 １１ 貫通孔 １２1 熱源 １２ ヒーター １３ 凹陥部1 Hair bundle 1 1 Motabatan 2 fusion substrate 2 first step portion 2 second inclined plane view 3 3 uneven portion 3 handle head 4 recess 5 the outer peripheral portion 10 mold 11 through holes 12 1 heat source 12 heater 13 recess
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【手続補正書】[Procedure amendment]
【提出日】平成７年１１月１６日[Submission date] November 16, 1995
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 ブラシおよびその製造方法Title: Brush and method of manufacturing the same
【特許請求の範囲】[Claims]
【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、歯ブラシ、ヘアー
ブラシなどプラスチック製刷毛部と柄部とを互に一体化
した形態のブラシおよびその製造法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush, such as a toothbrush or a hair brush, in which a plastic brush portion and a handle portion are integrated with each other, and a method for producing the brush.
【０００２】[0002]
【従来の技術】最近、柄部にある植毛孔に毛束が金属小
片、金属線材を用いて固定されているブラシに代って、
プラスチックからなる刷毛と柄部とを互に溶着して一体
化することが提案されている。従来、この種の溶着ブラ
シでは、熱融着（特開昭６０−２４１４０４、特開平２
−９９００２、特開平４−２２６１０号公報）のほかに
集束された刷毛の一端部を溶融し、かつヘッドまたはプ
レート状の肥大部若しくは融合塊に成形して、この集束
された刷毛の肥大部を柄部成形用金型中に導入し、柄部
のプラスチック材料を射出充填してのち、プラスチック
の硬化によって、それぞれの毛束が柄部中に一体固定化
するインモールドタイプが知られている（特公昭６１−
２６８２０８号公報、特表平２−５０３１５０号公
報）。さらに、毛束を１束づつ固定するのではなく、毛
束全体の端部を融合させて基板とし、ブラシ台に接合す
る方法（特公昭４２−５７９７）も提案されている。2. Description of the Related Art Recently, instead of a brush in which a bunch of hair is fixed to a hair-implanting hole in a handle using a metal piece or a metal wire,
It has been proposed that a brush made of plastic and a handle be welded together to be integrated. Conventionally, in this kind of welding brush, heat fusion (Japanese Patent Application Laid-Open No. 60-241404, Japanese Patent Application Laid-Open No. 2-212058).
No. 99002, Japanese Patent Laid-Open No. 4-22610), one end of the bristles that have been bundled is melted and formed into a head- or plate-shaped thickened portion or a fused mass, and the thickened portion of the bristled brushes is An in-mold type is known in which a hair material is introduced into a handle mold, injection-filled with a plastic material for the handle portion, and then each hair bundle is integrally fixed in the handle portion by curing the plastic ( Japanese Patent Publication 61-
No. 268208, and Japanese Patent Laid-Open No. 2-503150). Further, instead of fixing the hair bundles one by one, a method has been proposed in which the ends of the whole hair bundle are fused to form a substrate, and the hair bundle is joined to a brush base (Japanese Patent Publication No. 42-5797).
【０００３】[0003]
【発明が解決しようとする課題】従来法の毛束の端部に
融合塊をつくり、熱融着したりインモールドする方法で
は、植毛強度（成形体からの毛束の抜けにくさ）を高め
るためには、毛束融合塊を金型内へ深く挿入した状態で
成形材料を金型内に射出することが好ましいが、融着が
強固にできなかったり、射出成形時の圧力で成形材料
が、貫通孔から流出してバリが生じるといった欠点があ
り、植毛面から飛び出たバリは、製品外観を損ない、か
つ、大きいバリは口腔内を傷つける恐れがあるほか、植
毛強度が低く毛束抜けによる支障が多く信頼性の上で問
題であるし、金型システムが複雑となるし、毛束の融合
塊がハンドル表面近くにあるため、植毛強度を十分満足
できるものでもなく、毛束の植毛根元部から外方に広が
りやすく毛立が悪い欠点もあった。これら欠点を解決で
きるブラシ台に毛束基板を接着するものでは、毛束全体
の端部を融合させて１つの基板とするために、大変効率
的であるが、ハンドル側面に、接着部が露出するため、
接着剤のはみ出しによる汚れの発生といった問題があっ
た。本発明は、これら従来の欠点を容易に排除しようと
するもので、毛束全体の端部を融合させて基板とし、該
基板をブラシ台に接合する方法において、接合部からの
接着剤のはみ出しによる汚れの発生がなく、かつ、接合
強度の高いブラシを製造するのに簡単な金型構造で、特
別な金型システムを必要とせずに、植毛強度も高い、毛
立ちの良い植毛状態のブラシ、およびその有用な製造方
法を提供しようとすることにある。SUMMARY OF THE INVENTION In the conventional method of forming a fused mass at the end of a hair bundle, heat-sealing or in-molding the hair, the strength of hair transplant (hardness of the hair bundle from the molded body) is increased. In order to do so, it is preferable to inject the molding material into the mold while the hair bundle fusion mass is deeply inserted into the mold, but it is not possible to firmly bond the molding material, or the molding material is pressed by the pressure during injection molding. However, there is a defect that burr flows out from the through hole, and burr jumping from the flocked surface impairs the appearance of the product, and large burr may damage the oral cavity, and the flocking strength is low and hair bristles may come out. There are many obstacles and it is a problem on reliability, the mold system is complicated, and the fused mass of the hair bundle is near the handle surface, so the hair transplant strength is not sufficiently satisfied, and the root of the hair transplant of the hair bundle is not satisfied. It is easy to spread from the outer part and the hair is bad There was also a point. Bonding the bristle bundle substrate to the brush stand that can solve these drawbacks is very efficient because the ends of the entire bristle bundle are fused to form a single substrate, but the adhesive portion is exposed on the side surface of the handle. In order to
There was a problem that stains were generated due to the protrusion of the adhesive. The present invention is intended to easily eliminate these conventional drawbacks. In the method of fusing the ends of the entire hair bundle to form a substrate, and bonding the substrate to a brush base, the adhesive is extruded from the bonding part. A brush structure that is easy to fabricate and has a simple mold structure to produce a brush with high bonding strength, does not require a special mold system, and has a high bristle strength and has a good bristle transplanting condition. , And its useful manufacturing method.
【０００４】[0004]
【課題を解決するための手段】本発明は、集束された刷
毛をハンドルヘッド部に多数配列植設したブラシにおい
て、各毛束端部をそれぞれ溶融して基板とし、該基板を
ハンドルヘッド部の凹部に嵌合固着したものである。ま
た、本発明は、熱可塑性合成樹脂よりなる刷毛を金型に
多数形成した毛束貫通孔に挿通し、該貫通孔より突出す
る複数の毛束端を加熱手段で互いに融合して基板とする
と共に、該融合基板をハンドルヘッド部に備えた凹部に
嵌合収納して、接着手段或いは該凹部の外周部を加熱加
圧して、内側に折曲げ若しくは押圧する接合手段で一体
化することで、植毛強度の高い毛立ちの良好なブラシと
するものである。SUMMARY OF THE INVENTION According to the present invention, in a brush in which a large number of bundled brushes are arranged and planted in a handle head portion, each end portion of each hair bundle is melted to form a substrate, and the substrate is used for the handle head portion. It is fitted and fixed in the recess. Further, according to the present invention, a brush made of a thermoplastic synthetic resin is inserted into a hair bundle through hole formed in a large number of molds, and a plurality of hair bundle ends projecting from the through hole are fused together by a heating means to form a substrate. At the same time, the fused board is fitted and housed in the recess provided in the handle head portion, and the bonding means or the outer peripheral portion of the recess is heated and pressed, and integrated by the joining means that bends or presses inward. This is a brush with high flocking strength and good bristling.
【０００５】[0005]
【発明の実施の形態】本発明の実施形態では、熱可塑性
合成樹脂よりなる刷毛の毛束多数を配列して金型の毛束
貫通孔に挿通し、該貫通孔より突出する毛束端を加熱手
段で加熱溶融圧着して毛束相互を融合し基板とすると共
に、あらかじめ毛束融合基板が入る大きさの凹部を有す
る刷子ヘッド部に、毛束融合基板を収納してこれらを接
着手段で接合することにより、ハンドル側面に、接合部
が露出せず、接着剤のはみ出しによる汚れの発生を防止
でき、またヘッド部凹部の外周部を加熱により可塑性に
した後、加圧して外周部を内側に押し倒すことにより、
接合強度の高いブラシとすることとなり、特別な金型シ
ステムを必要とせずに、植毛強度が高く、毛立ちの良い
植毛状態が得られ、外観品位良好なブラシを得ることが
できる。BEST MODE FOR CARRYING OUT THE INVENTION In the embodiment of the present invention, a large number of hair bundles of a brush made of a thermoplastic synthetic resin are arranged and inserted into a hair bundle through hole of a mold, and a hair bundle end protruding from the through hole is provided. The hair bundles are fused and pressed by a heating means to fuse the hair bundles to each other to form a substrate, and the hair bundle fused board is housed in a brush head part having a concave portion having a size for accommodating the hair bundle fused board in advance, and these are bonded by an adhesive means. By joining, the joint part is not exposed on the side surface of the handle, it is possible to prevent the occurrence of dirt due to the adhesive squeeze out, and after heating the outer peripheral portion of the head recess to plasticize it, pressurize the outer peripheral portion to the inside. By pushing it down,
Since the brush has a high bonding strength, it is possible to obtain a brush having a high hair transplant strength, a hair transplant condition with good hair raising, and a good appearance quality without requiring a special mold system.
【０００６】[0006]
【実施例】本発明の実施例を図１乃至図５の例で説明す
ると、ハンドル成形用金型１０に備えられた毛束挿入用
の貫通孔１１に毛束１を導入して、加熱手段のヒーター
１２で複数の毛束の一端をそろえて突出させ、該突出端
部を熱源１２１による加熱で互いに溶融圧着して融合基
板２を形成し、該融合基板２をハンドルヘッド部３に備
えた凹部４に嵌合収納して、これらを接着剤、ホットメ
ルト、粘着剤、加熱溶着、超音波による接着手段などで
接着するか、或いは接着したのち若しくは接着しないで
該凹部４の外周部５を加熱加圧して外周部を内側に折曲
げ若しくは押圧して、前記融合基板２を挟持接合させて
植毛強度の高い品質良好なブラシとしてある。EXAMPLE An example of the present invention will be described with reference to the examples of FIGS. 1 to 5. The hair bundle 1 is introduced into the hair bundle insertion through hole 11 provided in the handle forming die 10 to heat the hair. projecting align the end of the plurality of tufts in the heater 12, the projecting end portion by melting crimped together by heating with a heat source 12 1 to form a fused substrate 2, with the hybrid circuit board 2 on the handle head portion 3 The external peripheral portion 5 of the concave portion 4 is fitted and stored in the concave portion 4 and is adhered by an adhesive, a hot melt, a pressure sensitive adhesive, a heat welding, an ultrasonic bonding means, or the like, with or without being adhered. Is heated and pressed to bend or press the outer peripheral portion inward, and the fused substrate 2 is sandwiched and joined to form a brush with high flocking strength and good quality.
【０００７】この場合、前記融合基板２としては、凹陥
部１３のあるヒータを金型１０に圧接し、該凹陥部２に
挿入された毛束端１１を溶融しつつ互に融合させて板状
に成形されるものであって、該融合基板２の外周部に段
部２１、傾斜面部２２或いは凹凸部２３のいずれかを成
形したものをハンドルヘッド部３に埋設してある。ま
た、融合基板２は、加熱板で溶融圧着成形するもの或い
は加熱して融合塊を作ったのちに、成形板で成形する形
態で毛束相互を一体化したものが用いられるが、接着手
段を採用する場合には前記ハンドルヘッド部の凹部４の
深さは融合基板２の厚さと略等しくし接合手段を採用す
る際には凹部４の深さをやや深くして外周部が折曲げや
すくすることが配慮されている。[0007] In this case, as the hybrid circuit board 2, pressed against the heater with a recessed portion 13 in the mold 10, with each other and fused with melted bristle bundle ends 1 1 inserted into the recessed portion 2 plate be one that is molded into Jo, are embedded stepped portion 2 1 to the outer peripheral portion of the fusion substrate 2, a material obtained by molding one of the inclined surface portion 2 2 or uneven portion 2 3 to the handle head portion 3. The fusion substrate 2 may be one that is melt-compression-molded with a heating plate, or one that is formed by molding a fusion lump after heating to integrate the hair bundles. When adopted, the depth of the recessed portion 4 of the handle head portion is approximately equal to the thickness of the fusion substrate 2, and when adopted the joining means, the depth of the recessed portion 4 is made slightly deep to facilitate bending of the outer peripheral portion. Is taken into consideration.
【０００８】図６の具体例では、前記融合基板２の外周
部に段部２１を成形したもの（図７ａ）を用いたもの
で、ハンドルヘッド部３にある凹部４の外周部５を内側
に押し倒すことで、該段部２１に沿って接合させ接着強
度をより一層高めてある。[0008] In the specific example of FIG. 6, which was molded stepped portion 2 1 to the outer peripheral portion of the hybrid circuit board 2 which was used (Fig. 7a), the inner and outer wall 5 of the recess 4 in the handle head portion 3 by pushing down on, are further enhanced bonding strength is joined along the stepped section 2 1.
【０００９】なお、前記融合基板２の成形には、ハンド
ルヘッド部との接合強度を高めるため図７に示す如く、
特定の形成にすることが配慮するが、段部２１とするこ
と（図７ａ）に限らず、傾斜面部２２とすること（図７
ｂ）で、外周部５の押し倒し加圧作業を容易にしつつ接
合強度も高めたり、凹凸部２３を基板外周側面に形成し
たもの（図７ｃ）や、基板上面に形成したもの（図７
ｄ）で、外周部５との接合に強度を高めて毛束融合基板
２とハンドルヘッド部３との一体化に役立ててある。In order to increase the bonding strength with the handle head portion, the fused substrate 2 is molded as shown in FIG.
While consideration may be given formation, not limited to (Figure 7a) to the step portion 2 1, to an inclined surface portion 2 2 (Fig. 7
In b), pushing or joining strength increase while facilitating pressurized compaction operation of the peripheral unit 5, which an uneven portion 2 3 formed on the substrate periphery side (those formed in FIG. 7c) and, the upper surface of the substrate (FIG. 7
In d), the strength of the joint with the outer peripheral portion 5 is increased, which is useful for the integration of the hair bundle fusion substrate 2 and the handle head portion 3.
【００１０】なお、本発明では、次に示す特徴的な構成
も含まれている。 熱可塑性合成樹脂よりなる刷毛の毛束を金型に多数
形成した毛束貫通孔に挿通し、該貫通孔より突出する毛
束端を加熱手段で融合して基板とすると共に、該融合基
板をハンドルヘッド部に備えた凹部に嵌合収納して、該
凹部の外周部を加熱加圧して内側に折曲げ若しくは押圧
して前記融合基板に被覆接合することを特徴とするブラ
シ製造方法。 前記融合基板が、凹陥部のあるヒータを金型に圧接
し、該凹陥部に挿入された毛束端を溶融しつつ互に融合
させて成形されるものであって、該融合基板の外周部に
段部、傾斜面部或いは凹凸部を成形する前項記載のブラ
シ製造方法。 前記基板がその周囲をハンドルヘッド部の凹部の外
周部位を折曲して包持されているブラシ。 前記基板が、その外周部に凹凸部を備えたものであ
って、前記ハンドルヘッド部の凹部外周部位を前記凹凸
部に接合配備したブラシ。The present invention also includes the following characteristic configurations. A bunch of brushes made of a thermoplastic synthetic resin is inserted into a bunch of through holes formed in a mold, and ends of the bunch protruding from the through holes are fused by a heating means to form a substrate. A method for manufacturing a brush, characterized in that the brush head is fitted and stored in a recess provided in a handle head portion, and the outer peripheral portion of the recess is heated and pressed to be bent or pressed inward to cover and bond the fused substrate. The fused substrate is formed by pressing a heater having a recessed portion against a mold to fuse the ends of the hair bundles inserted in the recessed portion to each other while melting them, and the outer peripheral portion of the fused substrate. The method for manufacturing a brush as recited in the aforementioned Item, wherein a step portion, an inclined surface portion or an uneven portion is formed on the surface. A brush in which the substrate is wrapped around its periphery by bending the outer peripheral portion of the recess of the handle head portion. A brush in which the substrate is provided with an uneven portion on the outer peripheral portion thereof, and the outer peripheral portion of the concave portion of the handle head portion is bonded and arranged on the uneven portion.
【００１１】[0011]
【発明の効果】本発明は、熱可塑性合成樹脂よりなる刷
毛の毛束を金型に多数形成した毛束貫通孔に挿通し、該
貫通孔より突出する複数の毛束端を加熱手段で互いに融
合して基板とすると共に、該融合基板をハンドルヘッド
部に備えた凹部に嵌合収納して、接着手段或いは接合手
段で一体化することによって、毛束融合基板をヘッド部
内に収納出来るため、刷子側面から見ても、接合部が露
出せず、外観が良く、また、接着剤のはみ出しもないの
で、口腔内で使用しても違和感がないし、また、ヘッド
部凹部の外周部を内側（毛束側）に折曲げる接合手段に
よって、接着強度を個々の毛束ごとに融着させた場合、
より一層高くすることができ、簡単な金型構造で十分な
植毛強度が得られ、かつ、毛立ちの良い植毛とすること
ができ、しかも品質良好で外観品位も信頼性も高いもの
とすることができるほか、生産性を大幅に向上させるこ
ともできる効果がある。According to the present invention, a hair bundle of a brush made of a thermoplastic synthetic resin is inserted into a hair bundle through hole formed in a mold, and a plurality of hair bundle ends protruding from the through hole are mutually heated by a heating means. Since the substrate is fused and the fused substrate is fitted and stored in the recess provided in the handle head portion and integrated by the bonding means or the joining means, the hair bundle fused substrate can be stored in the head portion. Even when viewed from the side of the brush, the joint is not exposed, the appearance is good, and the adhesive does not stick out, so it does not feel uncomfortable when used in the oral cavity. When the adhesive strength is fused for each individual hair bundle by the joining means that bends to the hair bundle side),
It is possible to make it even higher, to obtain sufficient flocking strength with a simple mold structure, and to achieve flocking with good fluffing, and also to have good quality, high appearance quality and high reliability. In addition to being able to improve productivity, there is an effect that productivity can be significantly improved.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の実施例製法の工程説明図で、（ａ）は
毛束挿入工程、（ｂ）は融合基板成形工程程、（ｃ）は
離型工程を示す。FIG. 1 is a process explanatory view of a manufacturing method according to an embodiment of the present invention, in which (a) shows a hair bundle inserting step, (b) shows a fused substrate forming step, and (c) shows a releasing step.
【図２】図１の例で成形された毛束の拡大平面図及び縦
断面図である。2A and 2B are an enlarged plan view and a vertical sectional view of a hair bundle formed in the example of FIG.
【図３】成形時での分離状態の縦断面図である。FIG. 3 is a vertical cross-sectional view of a separated state at the time of molding.
【図４】図３の例の平面図である。FIG. 4 is a plan view of the example of FIG.
【図５】本発明の接合工程を示すヘッド部の拡大縦断面
図で、成形直前と成形直後を示す。FIG. 5 is an enlarged vertical cross-sectional view of the head part showing the joining step of the present invention, showing just before and just after molding.
【図６】本発明の他の実施例の接合工程の一部の拡大縦
断面図で、成形直前と成形直後を示す。FIG. 6 is an enlarged vertical sectional view of a part of the joining process of another embodiment of the present invention, showing immediately before and immediately after molding.
【図７】毛束の例のそれぞれ他の実施例の平面図及び縦
断面図である。7A and 7B are a plan view and a vertical sectional view, respectively, of another example of the hair bundle.
【符号の説明】 １ 毛束 １１ 毛束端 ２ 融合基板 ２１ 段部 ２２ 傾斜面図 ３３ 凹凸部 ３ ハンドルヘッド部 ４ 凹部 ５ 外周部 １０ 成形用金型 １１ 貫通孔 １２１ 熱源 １２ ヒーター １３ 凹陥部[EXPLANATION OF SYMBOLS] 1 hair bundle 1 1 Motabatan 2 fusion substrate 2 first step portion 2 second inclined plane view 3 3 uneven portion 3 handle head 4 recess 5 the outer peripheral portion 10 mold 11 through holes 12 1 heat source 12 Heater 13 recess
Claims (1)
金型に多数形成した毛束貫通孔に挿通し、該貫通孔より
突出する複数の毛束端を加熱手段で互いに融合して基板
とすると共に、該融合基板をハンドルヘッド部に備えた
凹部に嵌合収納して接着手段または接合手段で一体化す
ることを特徴とするブラシ製造方法。1. A substrate in which a hair bundle of a brush made of a thermoplastic synthetic resin is inserted into a hair bundle through hole formed in a mold and a plurality of hair bundle ends projecting from the through hole are fused together by a heating means. And a method of manufacturing a brush, characterized in that the fused substrate is fitted and housed in a recess provided in a handle head portion and integrated by an adhesive means or a joining means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24230095A JPH0956476A (en) | 1995-08-29 | 1995-08-29 | Brush and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24230095A JPH0956476A (en) | 1995-08-29 | 1995-08-29 | Brush and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0956476A true JPH0956476A (en) | 1997-03-04 |
Family
ID=17087184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24230095A Pending JPH0956476A (en) | 1995-08-29 | 1995-08-29 | Brush and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0956476A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007289725A (en) * | 2002-12-03 | 2007-11-08 | Young-Jun Kwon | Toothbrush implanted with needle-shaped bristles tapered only one side |
| US20190298048A1 (en) * | 2016-05-17 | 2019-10-03 | Pesitro Healthcare Products Co., Ltd | Toothbrush And Method Of Making The Same |
| US11723453B2 (en) | 2017-12-12 | 2023-08-15 | Koninklijke Philips N.V. | Brush head assembly and methods of manufacture |
-
1995
- 1995-08-29 JP JP24230095A patent/JPH0956476A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007289725A (en) * | 2002-12-03 | 2007-11-08 | Young-Jun Kwon | Toothbrush implanted with needle-shaped bristles tapered only one side |
| US20190298048A1 (en) * | 2016-05-17 | 2019-10-03 | Pesitro Healthcare Products Co., Ltd | Toothbrush And Method Of Making The Same |
| US11723453B2 (en) | 2017-12-12 | 2023-08-15 | Koninklijke Philips N.V. | Brush head assembly and methods of manufacture |
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