JPH07136193A - Interdental space-cleaning device and its manufacture - Google Patents
Interdental space-cleaning device and its manufactureInfo
- Publication number
- JPH07136193A JPH07136193A JP28527693A JP28527693A JPH07136193A JP H07136193 A JPH07136193 A JP H07136193A JP 28527693 A JP28527693 A JP 28527693A JP 28527693 A JP28527693 A JP 28527693A JP H07136193 A JPH07136193 A JP H07136193A
- Authority
- JP
- Japan
- Prior art keywords
- arcuate base
- base portion
- vicinity
- end regions
- molds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Brushes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、歯列の間に付着する
歯垢等を除去するための歯列間清掃用具と、その製造方
法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interdental cleaning tool for removing plaque and the like adhering between dentitions, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】歯列の間に付着する歯垢等を除去するた
めの歯列間清掃用具が知られている。図７に示すよう
に、従来この歯列間清掃用具は合成樹脂材より成る弓状
基部１、及び前記弓状基部１から延在する把持部２とを
具備する。そして、前記弓状基部１の両端域３近傍に
は、歯垢等を除去するための糸状体４の両端部が埋設固
定されている。使用の際は、前記把持部２を握って前記
糸状体４を歯列間の隙間に挿入し歯垢をかき落とすよう
にして動かすことにより、そこに付着する食後の歯垢等
を除去する。2. Description of the Related Art An interdental cleaning tool for removing plaque and the like adhering between dentitions is known. As shown in FIG. 7, this interdental cleaning tool conventionally has an arcuate base 1 made of a synthetic resin material and a grip 2 extending from the arcuate base 1. In the vicinity of both end regions 3 of the arcuate base 1, both ends of a thread-like body 4 for removing plaque and the like are embedded and fixed. At the time of use, the gripping portion 2 is grasped and the filamentous body 4 is inserted into the gap between the dentition and moved by scraping off the plaque, thereby removing postprandial plaque and the like adhering thereto.
【０００３】これを使用すると、歯ブラシを用いた歯磨
きのみでは困難である歯列間の歯垢の除去に非常に有効
という利点がある。しかし、歯垢等の除去時に力がかか
る糸状体４はその端部が埋設固定された前記弓状基部１
から抜けてしまいやすいという問題があった。一方、従
来は前記歯列間清掃用具を次のようにして製造してい
た。図８に示すように、金型50における弓状基部１の両
端域３近傍の樹脂充填域７相互間に糸状体４を張り渡し
た状態で金型50を閉鎖し、合成樹脂を射出して成型して
いた。弓状基部１の外方の不要の糸状体４は、成型後に
切断して除去する。The use of this has the advantage that it is very effective in removing plaque between the dentition, which is difficult only by brushing the teeth with a toothbrush. However, the filamentous body 4 to which force is applied when removing dental plaque or the like has the arcuate base 1 with its end portion embedded and fixed.
There was a problem that it was easy to get out of. On the other hand, conventionally, the interdental cleaning tool has been manufactured as follows. As shown in FIG. 8, the mold 50 is closed while the filamentous body 4 is stretched between the resin-filled areas 7 in the vicinity of both end areas 3 of the arcuate base 1 of the mold 50, and the synthetic resin is injected. It was molded. The unnecessary filaments 4 outside the arcuate base 1 are cut and removed after molding.
【０００４】しかし、この方法で製造すると上記と同
様、歯垢等の除去時に力がかかる糸状体４はその端部が
埋設固定された前記弓状基部１から抜けてしまいやすい
という問題があった。However, when manufactured by this method, similarly to the above, there is a problem that the thread-like body 4 to which a force is applied at the time of removing plaque and the like is likely to come off from the arcuate base 1 whose end is embedded and fixed. .
【０００５】[0005]
【発明が解決しようとする課題】そこで、この発明は従
来よりも糸状体が抜けにくい歯間清掃具とその製造方法
を提供しようとするものである。SUMMARY OF THE INVENTION Therefore, the present invention aims to provide an interdental cleaning tool in which a filament is less likely to come off than in the prior art, and a manufacturing method thereof.
【０００６】[0006]
【課題を解決するための手段】前記課題を解決するため
この発明では次のような技術的手段を講じている。この
発明の歯列間清掃用具は、合成樹脂材より成る弓状基部
１、及び前記弓状基部１から延在する把持部２とを具備
し、前記弓状基部１の両端域３近傍には歯垢等を除去す
るための糸状体４の両端部が埋設固定されるとともに、
前記糸状体４の両端部は弓状基部１の両端域３近傍に埋
設された領域のうちで、その外方側の糸の撚りが緩んで
いることを特徴とする。In order to solve the above problems, the present invention takes the following technical means. The interdental cleaning tool of the present invention comprises an arcuate base portion 1 made of a synthetic resin material and a grip portion 2 extending from the arcuate base portion 1, and the arcuate base portion 1 is provided in the vicinity of both end regions 3 thereof. Both ends of the filamentous body 4 for removing plaque and the like are embedded and fixed, and
Both ends of the filamentous body 4 are characterized in that, in a region buried near both end regions 3 of the arcuate base 1, the twist of the yarn on the outer side is loose.
【０００７】また、この発明の歯列間清掃用具の製造方
法は、合成樹脂材より成る弓状基部１、及び前記弓状基
部１から延在する把持部２とを具備し、前記弓状基部１
の両端域３近傍には歯垢等を除去するための糸状体４の
両端部が埋設固定される歯列間清掃用具の製造方法であ
って、金型５，６における弓状基部１の両端域３近傍の
樹脂充填域７相互間に糸状体４を張り渡した後に、金型
５，６相互が閉鎖されると、糸状体４の両端部であって
前記弓状基部１の両端域３近傍の外側が前記金型５，６
相互により圧潰され、その後に合成樹脂が射出されるこ
とを特徴とする。Further, the method for manufacturing an interdental cleaning tool according to the present invention comprises an arcuate base portion 1 made of a synthetic resin material and a grip portion 2 extending from the arcuate base portion 1, and the arcuate base portion. 1
Is a method for manufacturing an interdental cleaning tool in which both ends of a filamentous body 4 for removing dental plaque and the like are embedded and fixed in the vicinity of both end regions 3 of the mold. When the molds 5 and 6 are closed after the filament 4 is stretched between the resin-filled regions 7 near the region 3, both ends of the filament 4 and both regions 3 of the arcuate base 1 are closed. The outside of the vicinity is the mold 5, 6
It is characterized in that they are crushed by each other and then a synthetic resin is injected.
【０００８】また、金型５，６相互が閉鎖されると、前
記金型５，６相互により前記糸状体４の圧潰された箇所
の外方が切断されることとしてもよい。When the molds 5 and 6 are closed, the molds 5 and 6 may cut the outside of the crushed portion of the filamentous body 4.
【０００９】[0009]
【作用】この発明は、以下のような作用を有する。この
発明の歯列間清掃用具は上記手段を採用したため、糸状
体４の両端部は合成樹脂材より成る弓状基部１の両端域
３近傍に埋設された領域のうちで、その外方側の糸の撚
りが緩んでいる。つまり、合成樹脂材は糸の撚りが緩ん
だ繊維間にも存している状態であるので、合成樹脂材よ
り成る弓状基部１の両端域３近傍とここに埋設固定され
る糸状体４の端部との間の接触面積が従来よりも増大し
ている。すなわち、弓状基部１の両端域３近傍とここに
埋設固定される糸状体４との間の固着性が向上してい
る。The present invention has the following actions. Since the interdental cleaning tool of the present invention employs the above-described means, both ends of the filamentous body 4 are located on the outer side of the region embedded in the vicinity of both end regions 3 of the arcuate base 1 made of a synthetic resin material. The twist of the thread is loose. In other words, since the synthetic resin material exists between the fibers in which the twist of the yarn is loose, the synthetic resin material is formed in the vicinity of both end regions 3 of the arcuate base 1 and the filaments 4 embedded and fixed therein. The contact area between the ends is larger than before. That is, the adhesiveness between the vicinity of both end regions 3 of the arcuate base 1 and the filaments 4 embedded and fixed therein is improved.
【００１０】また、この発明の歯列間清掃用具の製造方
法は上記手段を採用したため、金型５，６相互が閉鎖さ
れると糸状体４の両端部であって前記弓状基部１の両端
域３の外側が前記金型５，６相互により圧潰され、糸の
撚りが緩んだ状態に変形しており、この糸の撚りが緩ん
だ状態で合成樹脂が射出される。つまり、成型後には合
成樹脂材は糸の撚りが緩んだ繊維間にも存している状態
となるので、合成樹脂材より成る弓状基部１の両端域３
近傍とここに埋設固定される糸状体４の端部との間の接
触面積が従来よりも増大している。すなわち、弓状基部
１の両端域３近傍とここに埋設固定される糸状体４との
間の固着性が向上している。Further, since the method for manufacturing the interdental cleaning tool of the present invention employs the above-mentioned means, both ends of the thread-like body 4 and both ends of the arcuate base 1 when the molds 5 and 6 are closed. The outside of the region 3 is crushed by the molds 5 and 6 and deformed into a loose twist of the yarn, and the synthetic resin is injected in the loose twist of the yarn. In other words, after molding, the synthetic resin material remains in the state where the twisted yarns are loose, so that both end regions 3 of the arcuate base 1 made of the synthetic resin material.
The contact area between the vicinity and the end of the filamentous body 4 which is embedded and fixed therein is larger than in the conventional case. That is, the adhesiveness between the vicinity of both end regions 3 of the arcuate base 1 and the filaments 4 embedded and fixed therein is improved.
【００１１】[0011]
【実施例】以下、この発明の構成を実施例として示した
図面を参照して説明する。図１及び図２に示すように、
この実施例の歯列間清掃用具は合成樹脂材より成る弓状
基部１、及び前記弓状基部１から延在する把持部２とを
具備し、前記弓状基部１の両端域３近傍には歯垢等を除
去するための糸状体４の両端部が埋設固定されている。
そして、前記糸状体４の両端部は弓状基部１の両端域３
近傍に埋設された領域のうちで、その外方側の糸の撚り
を前記両端域３の幅の半分強くらい（図２参照）緩ませ
ている。糸の撚りを緩ませる方法としては、例えば後に
詳述する手段を採用することができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 and 2,
The interdental cleaning tool of this embodiment includes an arcuate base portion 1 made of a synthetic resin material and a grip portion 2 extending from the arcuate base portion 1, and the arcuate base portion 1 is provided in the vicinity of both end regions 3 thereof. Both ends of the filamentous body 4 for removing dental plaque and the like are embedded and fixed.
Further, both ends of the filamentous body 4 are provided at both end regions 3 of the arcuate base 1.
Of the region buried in the vicinity, the twist of the yarn on the outer side is loosened by about a half of the width of the both end regions 3 (see FIG. 2). As a method for loosening the twist of the yarn, for example, the means described in detail later can be adopted.
【００１２】前記合成樹脂材としてこの実施例では熱可
塑性樹脂たるポリスチレン樹脂を、前記糸状体４として
ナイロン繊維の撚り糸を採用した。この撚り糸４は径が
約２／１，０００mmのナイロン繊維を約１３０本撚り合
わせたものである。前記合成樹脂材と糸状体４とは相互
間の接着性に富むものが好ましい。合成樹脂材より成る
弓状基部１から糸状体４が抜ける不具合ができるだけ生
じにくくするためである。また、この実施例では後述の
ように弓状基部１と把持部２とをポリスチレン樹脂の射
出成型により一体的に形成したが、把持部２は合成樹脂
材ではなく他の材質でもよい。さらに、把持部２側の端
部は奥歯の裏側や歯と歯肉のポケットの間の取りにくい
歯垢や食べかすをかき出し易くするために鉤形形状とし
ている。In this embodiment, a polystyrene resin, which is a thermoplastic resin, is used as the synthetic resin material, and a nylon fiber twisted yarn is used as the thread member 4. The twisted yarn 4 is formed by twisting about 130 nylon fibers having a diameter of about 2 / 1,000 mm. It is preferable that the synthetic resin material and the filamentous body 4 have excellent adhesiveness to each other. This is because the problem of the filamentous body 4 coming off from the arcuate base portion 1 made of a synthetic resin material is made as difficult as possible. Further, in this embodiment, the arcuate base portion 1 and the grip portion 2 are integrally formed by injection molding of polystyrene resin as will be described later, but the grip portion 2 may be made of another material instead of a synthetic resin material. Further, the end portion on the side of the grip portion 2 has a hook shape in order to easily scrape off plaque and food waste that are difficult to remove between the back side of the back teeth and between the teeth and the gingival pocket.
【００１３】次に、この実施例の歯列間清掃用具の使用
状態を説明する。使用の際、前記把持部２を握ってナイ
ロン繊維の撚り糸４を歯列間に挿入するとナイロン繊維
の撚り糸４の繊維が略一直線上となるように撚りの配列
が変位して、前記間隙に対応した厚みとなるように変形
する。したがって、歯列間の間隔を押し拡げることなく
ナイロン繊維の撚り糸４が狭い隙間に入り込み、歯ブラ
シによる歯磨きでは除去しにくい汚れを効果的に取り除
くことができるという利点がある。Next, the use state of the interdental cleaning tool of this embodiment will be described. In use, when the nylon fiber twisted yarn 4 is inserted between the dentition while grasping the grip portion 2, the twisted array is displaced so that the fibers of the nylon fiber twisted yarn 4 are substantially in line, and correspond to the gap. It deforms so that it has the specified thickness. Therefore, there is an advantage that the twisted yarn 4 of the nylon fiber enters the narrow gap without expanding the gap between the tooth rows, and stains that are difficult to remove by toothbrushing with a toothbrush can be effectively removed.
【００１４】また、ナイロン繊維の撚り糸４の両端部は
ポリスチレン樹脂より成る弓状基部１の両端域３近傍に
埋設された領域のうちで、その外方側の糸の撚りが緩ん
でいる。つまり、ポリスチレン樹脂は糸の撚りが緩んだ
繊維間にも存している状態であるので、ポリスチレン樹
脂より成る弓状基部１の両端域３近傍とここに埋設固定
されるナイロン繊維の撚り糸４の端部との間の接触面積
が従来よりも増大している。すなわち、弓状基部１の両
端域３近傍とここに埋設固定されるナイロン繊維の撚り
糸４との間の固着性が向上しているので、使用の際、前
記把持部２を握って前記ナイロン繊維の撚り糸４を歯列
間の隙間に挿入し歯垢をかき落とすようにして前後や上
下に動かすことによりそこに付着する食後の歯垢等を除
去するときに、従来よりもナイロン繊維の撚り糸４が弓
状基部１から抜けにくいという利点がある。Further, both ends of the twisted yarn 4 of nylon fiber are loose in the outer side of the region embedded in the vicinity of both end regions 3 of the arcuate base 1 made of polystyrene resin. That is, since the polystyrene resin exists between the fibers in which the twist of the yarn is loose, the vicinity of both end regions 3 of the bow-shaped base portion 1 made of the polystyrene resin and the twisted yarn 4 of the nylon fiber embedded and fixed in this area are fixed. The contact area between the ends is larger than before. That is, since the adhesiveness between the vicinity of both end regions 3 of the arcuate base portion 1 and the twisted yarn 4 of the nylon fiber embedded and fixed therein is improved, the nylon fiber is grasped by the grip portion 2 during use. Twisted yarn 4 of nylon fiber is inserted more than before when removing plaque after eating adhered there by inserting the twisted yarn 4 of No. 4 into the gap between the dentition and moving it back and forth or up and down so as to scrape off the plaque. Has an advantage that it is hard to come off from the arcuate base 1.
【００１５】次に、上記の歯列間清掃用具の製造方法を
説明する。図３及び図４に示すようなキャビティ金型５
とコア金型６とを用い、双方の樹脂充填域７にポリスチ
レン樹脂をゲート８から充填する射出成型により製造し
た。図示したものでは１サイクルで２個の製品を取れる
ような金型５，６にしており、弓状基部１の両端域３近
傍の樹脂充填域７相互間にはナイロン繊維の撚り糸４を
張り渡すようにしている。また、９はナイロン繊維の撚
り糸４が存するべき域を確保するために金型５，６に形
成した凹部、10は同様に断面Ｖ字状の凹条である。Next, a method for manufacturing the above interdental cleaning tool will be described. Cavity mold 5 as shown in FIGS. 3 and 4.
The core mold 6 and the core mold 6 were used for injection molding in which both resin-filled areas 7 were filled with polystyrene resin from the gate 8. In the illustrated example, the dies 5 and 6 are formed so that two products can be taken in one cycle, and the twisted yarn 4 of nylon fiber is stretched between the resin-filled areas 7 near both end areas 3 of the arcuate base 1. I am trying. Further, 9 is a recess formed in the molds 5 and 6 to secure the region where the twisted yarn 4 of nylon fiber should exist, and 10 is a recess with a V-shaped cross section.
【００１６】この実施例では、ナイロン繊維の撚り糸４
を張り渡した箇所であってそれぞれの弓状基部１の外方
側にもポリスチレン樹脂をゲート11から射出するように
している。この箇所のナイロン繊維の撚り糸４は不要と
なるのであるが、この不要糸部分をここに射出したポリ
スチレン樹脂と一体的に成型終了後に金型５，６から公
知の方法で突き出すことにより金型５，６内への糸残り
を防止するためである。In this embodiment, a nylon fiber strand 4
The polystyrene resin is also injected from the gates 11 to the outer sides of the arcuate bases 1 at the places where they are stretched. The twisted yarn 4 of nylon fiber at this portion is unnecessary, but the unnecessary yarn portion is integrally molded with the polystyrene resin injected here by ejecting it from the molds 5 and 6 by a known method after the molding is completed and the mold 5 is formed. This is to prevent the thread remaining in the inside of the cords 6, 6.
【００１７】図５に示すように、成型工程として先ず前
記両金型５，６における弓状基部の両端域近傍の樹脂充
填域７相互間にナイロン繊維の撚り糸４を張り渡す。次
に、図６に示すように金型５，６相互を閉鎖する。この
際、ナイロン繊維の撚り糸４の両端部であって前記弓状
基部の両端域近傍の外側が前記金型５，６相互（突部1
2）により圧潰されて糸の撚りが緩んだ状態となる。そ
の後にポリスチレン樹脂がゲートから樹脂充填域７に射
出される。また、金型５，６相互が閉鎖されると、前記
金型５，６相互（突部12）により前記ナイロン繊維の撚
り糸４の圧潰された箇所の外方がカット刃13により切断
されるようにしている。そして、成型が終了すると金型
５，６から公知の方法で突き出して製品を得る。As shown in FIG. 5, as a molding step, first, a twisted yarn 4 of nylon fiber is stretched between the resin-filled regions 7 in the vicinity of both end regions of the arcuate base portions of the molds 5 and 6. Next, as shown in FIG. 6, the molds 5 and 6 are closed. At this time, the outsides of both ends of the twisted yarn 4 of nylon fiber near both end regions of the arcuate base are the molds 5 and 6 (projection 1).
It is crushed by 2) and the twist of the yarn becomes loose. After that, polystyrene resin is injected from the gate into the resin filling area 7. Further, when the molds 5 and 6 are closed, the outside of the crushed portion of the twisted yarn 4 of the nylon fiber is cut off by the cutting blade 13 by the molds 5 and 6 (projection 12). I have to. When the molding is finished, the product is obtained by protruding from the molds 5 and 6 by a known method.
【００１８】上記製造方法によると、金型５，６相互
（突部12）が閉鎖されると、ナイロン繊維の撚り糸４の
両端部であって前記弓状基部１の両端域３の外側が前記
金型５，６相互（突部12）により圧潰され、当初の糸撚
りの状態を維持しえずに平面状に潰れ、その結果、糸の
撚りが緩んだ状態に変形している。そして、この糸の撚
りが緩んだ状態で溶融したポリスチレン樹脂が射出され
る。つまり、成型後の製品にはポリスチレン樹脂は糸の
撚りが緩んだ繊維間にも存している状態となるので、ポ
リスチレン樹脂より成る弓状基部１の両端域３近傍とこ
こに埋設固定されるナイロン繊維の撚り糸４の端部との
間の接触面積が従来よりも増大している。すなわち、弓
状基部１の両端域３近傍とここに埋設固定されるナイロ
ン繊維の撚り糸４との間の固着性が向上しているので、
従来よりもナイロン繊維の撚り糸４が抜けにくいという
利点がある。According to the above manufacturing method, when the molds 5 and 6 (projections 12) are closed, both ends of the nylon fiber twisted yarn 4 and the outsides of both end regions 3 of the arcuate base 1 are closed. The dies are crushed by the molds 5 and 6 (projections 12) and crushed into a flat shape without maintaining the initial twisted state, and as a result, the twisted yarn is deformed. Then, the molten polystyrene resin is injected with the twist of the yarn loose. That is, in the molded product, the polystyrene resin exists between the fibers in which the twist of the yarn is loose, so that the polystyrene resin is embedded and fixed in the vicinity of both end regions 3 of the arcuate base 1 made of polystyrene resin. The contact area between the ends of the nylon fiber twisted yarn 4 is larger than in the conventional case. That is, since the adhesiveness between the vicinity of both end regions 3 of the arcuate base 1 and the twisted yarn 4 of nylon fiber embedded and fixed therein is improved,
There is an advantage that the twisted yarn 4 of nylon fiber is less likely to come off than in the past.
【００１９】また、従来技術の欄に記載の製造方法によ
ると、射出成型時の流動ポリスチレン樹脂の押圧力によ
りナイロン繊維の撚り糸４が適正位置から変位せしめら
れ、その結果、ナイロン繊維の撚り糸４が弛んだ状態で
弓状基部１に埋設固化されていることがあるという問題
があったが、上記実施例のようにナイロン繊維の撚り糸
４の両端部であって前記弓状基部１の両端域３の外側を
前記金型５，６相互（突部12）により圧潰すると、この
部分が樹脂の流入の際に金型５，６により強固に挟持さ
れているので流動樹脂圧による撚り糸４の変位を効果的
に回避することができ、前記のような糸の弛みの問題が
解消されるという利点もある。 （糸状体の抜け易さの評価）上記実施例の歯列間清掃用
具を用い、ナイロン繊維の撚り糸４の弓状基部１からの
抜け易さを次の方法で評価した。なお比較例として、ナ
イロン繊維の撚り糸４の両端部であって弓状基部１の両
端域３近傍の外側を金型５，６相互により圧潰しない従
来の方法に従って射出成型法で製造したものを用いた。 （試験方法）引張試験機を用い、弓状基部１に渡された
ナイロン繊維の撚り糸４の中央部を４０mm／分で引張
り、弓状基部１のいずれかの端部から撚り糸４が抜けた
際の強度を測定した。 （結果）実施例のものの強度は４．６８Ｋｇ（ｎ数＝
５）であったのに対し、比較例のものの強度は２．５４
Ｋｇ（ｎ数＝５）であった。つまり、実施例のものは比
較例と比較して非常にナイロン繊維の撚り糸４が抜けに
くくなっいることが分かる。Further, according to the manufacturing method described in the section of the prior art, the twisting yarn 4 of nylon fiber is displaced from the proper position by the pressing force of the fluid polystyrene resin at the time of injection molding, and as a result, the twisting yarn 4 of nylon fiber is formed. There is a problem that it is embedded and solidified in the arcuate base portion 1 in a loose state, but as in the above-mentioned embodiment, it is at both end portions of the nylon fiber twisted yarn 4 and both end regions 3 of the arcuate base portion 1. When the outside of the mold is crushed by the molds 5 and 6 (projection 12), this part is firmly clamped by the molds 5 and 6 when the resin flows in, so that the twisted yarn 4 is displaced by the flow resin pressure. There is also an advantage that it can be effectively avoided and the above-mentioned problem of yarn slack is solved. (Evaluation of Ease of Detachment of Filament) Using the interdental cleaning tool of the above example, the easiness of detachment of the twisted yarn 4 of nylon fiber from the arcuate base 1 was evaluated by the following method. In addition, as a comparative example, the one manufactured by injection molding according to a conventional method in which the outer sides of both ends of the twisted yarn 4 of nylon fiber and the vicinity of both end regions 3 of the arcuate base 1 are not crushed by the molds 5 and 6 is used. I was there. (Test method) Using a tensile tester, the central portion of the nylon fiber twisted yarn 4 passed over the bow-shaped base 1 was pulled at 40 mm / min, and the twisted yarn 4 was pulled out from either end of the bow-shaped base 1. Was measured. (Result) The strength of the example is 4.68 Kg (n number =
5), the strength of the comparative example is 2.54.
It was Kg (n = 5). That is, it is understood that the twisted yarn 4 of the nylon fiber is much less likely to come off in the example than in the comparative example.
【００２０】[0020]
【発明の効果】この発明は上述のような構成を有するも
のであり、次の効果を奏する。弓状基部１の両端域３近
傍とここに埋設固定される糸状体４との間の固着性が向
上しているので、従来よりも糸状体４が抜けにくい歯間
清掃具とその製造方法を提供することができる。The present invention has the above-mentioned structure and has the following effects. Since the adhesiveness between the vicinity of both end regions 3 of the arcuate base portion 1 and the filaments 4 embedded and fixed therein is improved, the interdental cleaning tool and the manufacturing method therefor, in which the filaments 4 are less likely to come off than in the prior art. Can be provided.
【図１】この発明の歯列間清掃用具の実施例を説明する
全体斜視図。FIG. 1 is an overall perspective view illustrating an embodiment of an interdental cleaning tool according to the present invention.
【図２】図１の歯列間清掃用具の弓状基部近傍の断面
図。2 is a cross-sectional view of the interdental cleaning tool of FIG. 1 in the vicinity of an arcuate base.
【図３】この発明の歯列間清掃用具の製造方法の実施例
を説明するキャビティ金型の正面図。FIG. 3 is a front view of a cavity mold for explaining an embodiment of a method for manufacturing an interdental cleaning tool according to the present invention.
【図４】この発明の歯列間清掃用具の製造方法の実施例
を説明するコア金型の正面図。FIG. 4 is a front view of a core mold for explaining an embodiment of a method for manufacturing an interdental cleaning tool according to the present invention.
【図５】図３及び図４の金型相互のＸ部分の閉鎖前の状
態を説明する縦断面図。5 is a vertical cross-sectional view for explaining a state before closing the X portions of the molds of FIGS. 3 and 4;
【図６】図３及び図４の金型相互のＸ部分の閉鎖した状
態を説明する縦断面図。FIG. 6 is a vertical cross-sectional view illustrating a closed state of the X portions of the molds of FIGS. 3 and 4;
【図７】従来の歯列間清掃用具を説明する全体斜視図。FIG. 7 is an overall perspective view illustrating a conventional interdental cleaning tool.
【図８】従来の歯列間清掃用具の製造方法を説明する金
型の弓状基部近傍の正面概略図。FIG. 8 is a schematic front view of the vicinity of an arcuate base of a mold for explaining a conventional method for manufacturing an interdental cleaning tool.
１ 弓状基部 ２ 把持部 ３ 両端域 ４ 糸状体 ５ 金型 ６ 金型 ７ 樹脂充填域 1 Bow-shaped base 2 Gripping part 3 Both end areas 4 Filament 5 Mold 6 Mold 7 Resin filling area
Claims (3)
び前記弓状基部（１）から延在する把持部（２）とを具
備し、前記弓状基部（１）の両端域（３）近傍には歯垢
等を除去するための糸状体（４）の両端部が埋設固定さ
れるとともに、 前記糸状体（４）の両端部は弓状基部（１）の両端域
（３）近傍に埋設された領域のうちで、その外方側の糸
の撚りが緩んでいることを特徴とする歯列間清掃用具。1. An arcuate base portion (1) made of a synthetic resin material, and a grip portion (2) extending from the arcuate base portion (1), wherein both end regions of the arcuate base portion (1) ( 3) Both ends of the filamentous body (4) for removing plaque and the like are embedded and fixed in the vicinity, and both ends of the filamentous body (4) are both end regions (3) of the arcuate base (1). An interdental cleaning tool characterized in that the twist of the yarn on the outer side of the region buried in the vicinity is loose.
び前記弓状基部（１）から延在する把持部（２）とを具
備し、前記弓状基部（１）の両端域（３）近傍には歯垢
等を除去するための糸状体（４）の両端部が埋設固定さ
れる歯列間清掃用具の製造方法であって、 金型（５）（６）における弓状基部（１）の両端域
（３）近傍の樹脂充填域７相互間に糸状体（４）を張り
渡した後に、金型（５）（６）相互が閉鎖されると、糸
状体（４）の両端部であって前記弓状基部（１）の両端
域（３）近傍の外側が前記金型（５）（６）相互により
圧潰され、その後に合成樹脂が射出されることを特徴と
する歯列間清掃用具の製造方法。2. An arcuate base portion (1) made of a synthetic resin material, and a grip portion (2) extending from the arcuate base portion (1), wherein both end regions of the arcuate base portion (1) ( 3) A method for manufacturing an interdental cleaning tool, in which both ends of a filamentous body (4) for removing dental plaque and the like are embedded and fixed in the vicinity, and an arcuate base portion of a mold (5) (6). When the molds (5) and (6) are closed after the filaments (4) are stretched between the resin-filled regions 7 near both end regions (3) of (1), the filaments (4) A tooth characterized in that the outer sides of both end portions in the vicinity of both end regions (3) of the arcuate base portion (1) are crushed by the molds (5) and (6), and then a synthetic resin is injected. Method for manufacturing inter-row cleaning tool.
前記金型（５）（６）相互により前記糸状体（４）の圧
潰された箇所の外方が切断されることを特徴とする請求
項２記載の歯列間清掃用具の製造方法。3. When the molds (5) (6) are closed,
The method for manufacturing an interdental cleaning tool according to claim 2, wherein an outer side of the crushed portion of the filamentous body (4) is cut by the molds (5) (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28527693A JP2843962B2 (en) | 1993-11-15 | 1993-11-15 | Interdental cleaning tool and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28527693A JP2843962B2 (en) | 1993-11-15 | 1993-11-15 | Interdental cleaning tool and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07136193A true JPH07136193A (en) | 1995-05-30 |
| JP2843962B2 JP2843962B2 (en) | 1999-01-06 |
Family
ID=17689421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28527693A Expired - Lifetime JP2843962B2 (en) | 1993-11-15 | 1993-11-15 | Interdental cleaning tool and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2843962B2 (en) |
-
1993
- 1993-11-15 JP JP28527693A patent/JP2843962B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2843962B2 (en) | 1999-01-06 |
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