JP2008238345A - Cutting mechanism making safety and cutting property compatible in cutting tool for flexible and thin object - Google Patents
Cutting mechanism making safety and cutting property compatible in cutting tool for flexible and thin object Download PDFInfo
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Abstract
Description
本発明は柔軟な薄い紙や布、フィルム、アルミホイールあるいは粘着テープなどの切断具に関する。 The present invention relates to a cutting tool such as flexible thin paper, cloth, film, aluminum wheel, or adhesive tape.
消費者の保護をより充実するため製造物責任（ＰＬ）についての意識は近年益々高まってきている。今までは消費者の不注意として処理されてきたような事でも、製造者は製造物に絶対の安全を求められるようになってきている。粘着テープ、ラップフィルムあるいはアルミホイールなど家庭で使用するカッターの殆どは、ＰＬ意識の高まり以前からも安全性に配慮して刃付けをしていない鋸刃状の薄板鋼板やプラスティック等（以下「非鋭利刃」という）が切刃として採用されてきており、今後もこれらの観点に根ざした安全確保がより重要な位置を占めるものと思われる。しかし、被切断物が非鋭利刃上を滑って円滑な切断ができなかったことを多くの人が経験しているように、安全と切断性能との両立が課題となっている。この課題を解消するために、鋭利な刃の使用を可能にするための安全策が数多く提案がされている。 In recent years, awareness of product liability (PL) has increased more and more to further protect consumers. Even things that have been treated as carelessness by consumers until now, manufacturers are demanding absolute safety for their products. Most cutters used at home, such as adhesive tape, wrap film, and aluminum wheels, are saw blade-like thin steel plates and plastics that have not been bladed in consideration of safety even before the rise in PL awareness (hereinafter referred to as “non- "Sharp blades" have been adopted as cutting blades, and it seems that ensuring safety based on these viewpoints will occupy a more important position in the future. However, as many people have experienced that the object to be cut slipped on the non-sharp blade and could not be cut smoothly, it has become a challenge to achieve both safety and cutting performance. In order to solve this problem, many safety measures for enabling the use of a sharp blade have been proposed.
鋭利な刃の使用を可能にするための提案には、常時は鋭利な切刃を手の触れないところに格納しておき、切断時のみ露出させる方式のもの（例えば特許文献１、特許文献２、特許文献３、特許文献４、特許文献５、特許文献６）や、鋭利な切刃を指などが不用意に接触しない場所に置く方式のもの（例えば特許文献７、特許文献８、特許文献９、特許文献１０、特許文献１１、特許文献１２、特許文献１３、特許文献１４）などがある。 As a proposal for enabling the use of a sharp blade, a method in which a sharp cutting blade is always stored in a place not touched by the hand and exposed only at the time of cutting (for example, Patent Document 1 and Patent Document 2). , Patent Literature 3, Patent Literature 4, Patent Literature 5, Patent Literature 6), or a method in which a sharp cutting blade is placed in a place where a finger or the like does not touch carelessly (for example, Patent Literature 7, Patent Literature 8, Patent Literature) 9, Patent Document 10, Patent Document 11, Patent Document 12, Patent Document 13, and Patent Document 14).
切断時のみ鋭利な切刃を露出させる方式のものとしては、切断時にはレバーやボタンを押し下げるか（特許文献１、特許文献２、特許文献３）、あるいはテープを押し当てることにより格納されていた切刃が露出し切断するような方法（特許文献４、特許文献５、特許文献６）が提案されている。しかし、これらには切断時以外に幼児などが不用意にレバーを押し下げたり、テープを押し当てるべきところに指を押し当てたり、などする危険性が残っている。 As a method of exposing a sharp cutting edge only at the time of cutting, the lever or button is pushed down at the time of cutting (Patent Document 1, Patent Document 2, Patent Document 3), or the cutting that has been stored by pressing the tape Methods (Patent Document 4, Patent Document 5, Patent Document 6) in which the blade is exposed and cut are proposed. However, there remains a risk that an infant or the like inadvertently pushes down the lever or presses a finger where the tape should be pressed, other than at the time of cutting.
一方、鋭利な切刃に指などが不用意に接触しないような場所に置く方式のもの（特許文献７、特許文献８、特許文献９、特許文献１０、特許文献１１、特許文献１２、特許文献１３、特許文献１４）は、基本的に安全であるといえるが、特許文献７、特許文献８および特許文献９は確実に切刃が安全な場所に置かれているとは言い難い。対して、特許文献１０、特許文献１１、特許文献１２および特許文献１３は切刃が溝状の凹部に収められているので、寸法さえ吟味すれば安全性は確保できるものである。しかし、凹部に収めるために構造が複雑となったり、切刃などの損耗が懸念されたりするなどの課題を残している。特許文献１４は切刃を含む切断機構部全体が筐体に収められており安全ではあるが、動力駆動の切断装置であり簡易な切断具に装備される切断機能部分として採用するには無理がある。 On the other hand, a method in which a finger or the like is placed on a sharp cutting blade so that it does not inadvertently touch (Patent Document 7, Patent Document 8, Patent Document 9, Patent Document 10, Patent Document 11, Patent Document 12, Patent Document) 13 and Patent Document 14) are basically safe, but Patent Document 7, Patent Document 8 and Patent Document 9 cannot be said to be sure that the cutting edge is placed in a safe place. On the other hand, in Patent Document 10, Patent Document 11, Patent Document 12, and Patent Document 13, since the cutting edge is housed in the groove-shaped recess, safety can be ensured only by examining the dimensions. However, there are still problems such as the structure being complicated to fit in the recess and the fear of wear of the cutting edge. Patent Document 14 is safe because the entire cutting mechanism including the cutting blade is housed in the housing, but it is impossible to adopt it as a cutting function part equipped in a simple cutting tool that is a power-driven cutting device. is there.
特許文献１０は同特許文献中の図５あるいは図８に示されるように粘着テープを固定曲面凸部４の溝９を跨いで粘着保持し、切刃７が溝９に入り込むように押さえ付けることによって藁などの「押し切り」の要領で裁断するものである（以後これを「押し切り型」という）。切刃７は固定曲面凸部４に対応する可動テープカッティング部１に設けられた凹部３の中に収められており、指が入らない程度に凹部を狭くすることによって安全は確保できる。しかし、凹部を狭くすることによる切断性能とコストの問題など確認すべき課題も無いとは言えない。 In Patent Document 10, as shown in FIG. 5 or FIG. 8 in the same patent document, the adhesive tape is adhesively held across the groove 9 of the fixed curved convex portion 4 and pressed so that the cutting edge 7 enters the groove 9. Is cut in the manner of “push-cutting” such as 藁 (hereinafter referred to as “push-cut type”). The cutting edge 7 is housed in a concave portion 3 provided in the movable tape cutting portion 1 corresponding to the fixed curved surface convex portion 4, and safety can be ensured by narrowing the concave portion so that a finger does not enter. However, it cannot be said that there are no problems to be confirmed, such as cutting performance and cost problems caused by narrowing the recess.
特許文献１１はラップフィルムなどの切断具である。切断の仕方としては特許文献１０と同様、「押し切り型」の切断具である。特許文献１０は粘着テープを切断対象としているので、被切断物である粘着テープを同文献の固定曲面凸部４の溝９を跨いで粘着保持し、切刃７に押し付けることができる。対して、特許文献１３は粘着性のないラップフィルムを切断対象としているので、刃８の両側に設けたクッション９と凸１２とでラップフィルムを挟んで保持して刃８に押し付けて切断するようになっている。刃８は蓋２に掘られた溝状の凹部に設けられており、溝の幅や深さを配慮することにより指などの触れるおそれをなくし安全が確保できる。しかし、刃８が納められている溝状の凹部内に被切断物を保持するためのクッション９を配置しなければならず構造が複雑で製造コストの面で問題がある。 Patent Document 11 is a cutting tool such as a wrap film. The cutting method is a “push-cut” type cutting tool as in Patent Document 10. Since Patent Document 10 is intended for cutting an adhesive tape, the adhesive tape that is the object to be cut can be adhesively held across the groove 9 of the fixed curved convex portion 4 of the same document and pressed against the cutting blade 7. On the other hand, since Patent Document 13 is intended to cut a non-adhesive wrap film, the cushion 9 provided on both sides of the blade 8 and the projections 12 are held between the wrap film and pressed against the blade 8 for cutting. It has become. The blade 8 is provided in a groove-like concave portion dug in the lid 2, and by taking into consideration the width and depth of the groove, there is no fear of touching a finger or the like, and safety can be ensured. However, the cushion 9 for holding the object to be cut must be disposed in the groove-like recess in which the blade 8 is accommodated, and the structure is complicated and there is a problem in terms of manufacturing cost.
特許文献１２は、電線被覆絶縁テープの繰出具にカッターを設けたものである。刃部４と刃受け部５とで絶縁テープを押圧して切断するものである。刃部４を「包丁」、刃受け部５を「まな板」に例えることができる（以後これを「まな板・包丁型」という）。刃部４は溝状の凹部の底に置かれており指などが触れるおそれはなく安全が確保されている。ただし、切断後は刃部４と刃受け部５とが直接押圧されるので刃部４あるいは刃受け部５の損耗が懸念される。 In Patent Document 12, a cutter is provided on a feeding tool for an electric wire covering insulating tape. The insulating tape is pressed and cut by the blade portion 4 and the blade receiving portion 5. The blade 4 can be compared to a “knife” and the blade receiver 5 can be compared to a “chopping board” (hereinafter referred to as “cutting board / knife type”). The blade part 4 is placed on the bottom of the groove-shaped recess, and there is no fear of touching with a finger or the like, and safety is ensured. However, since the blade portion 4 and the blade receiving portion 5 are directly pressed after cutting, there is a concern about the wear of the blade portion 4 or the blade receiving portion 5.
特許文献１３はロール状に巻き取られた包帯などのテープカッターである。切断の仕方としては特許文献１２と同様であり、同文献の刃受け部５をローラに置き換えたものといえ、「まな板・包丁型」の切断具といえる。切刃であるブレード7は凹条溝５の底部に置かれており、溝の幅や深さを配慮することにより指などが触れるおそれをなくし安全が確保できる。ただし、これもブレード7とローラ１０とで包帯を押し切るので切断後はブレードとローラとが直接押圧されるので、ブレードあるいはローラの損耗が懸念される。 Patent Document 13 is a tape cutter such as a bandage wound up in a roll shape. The cutting method is the same as that of Patent Document 12, and it can be said that the blade receiving portion 5 of the same document is replaced with a roller, and can be said to be a “chopping board / knife type” cutting tool. The blade 7 which is a cutting blade is placed at the bottom of the groove 5, and by taking into consideration the width and depth of the groove, there is no risk of touching with a finger or the like, and safety can be ensured. However, since the bandage is pushed by the blade 7 and the roller 10 as well, since the blade and the roller are directly pressed after cutting, there is a concern that the blade or the roller is worn.
特許文献１４は プリンターや記録装置などに使用されている用紙（シート）の切断装置である。切断の仕方は、用紙（シート）供給側の通紙窓33の下側フレームに固定された固定刃18に逆Ｖ字型に窪んだ刃先を有する可動刃２０を駆動装置で摺動させ、鋏やペーパーカッターのように紙を裁断するものである。固定刃１８と可動刃２０は切断装置の筐体の中に収められているので通紙窓から指が入らない限りは安全であるが、駆動装置などを有する大掛かりな装置となる。 Patent Document 14 is a paper (sheet) cutting device used in printers, recording devices, and the like. For cutting, the movable blade 20 having an inverted V-shaped cutting edge is slid by a driving device on the fixed blade 18 fixed to the lower frame of the paper passing window 33 on the paper supply side. It cuts paper like a paper cutter. Since the fixed blade 18 and the movable blade 20 are housed in the casing of the cutting device, it is safe unless a finger enters from the paper passing window, but becomes a large-scale device having a drive device and the like.
つまり比較的簡易で安全な切断具として提供されているものは、切刃を溝状の凹所に収められたものであり、その切断方式は上述のように「押し切り型」や「まな板・包丁型」となっている。 In other words, what is offered as a relatively simple and safe cutting tool is that the cutting blade is housed in a groove-like recess, and the cutting method is “push-cut type” or “cutting board / knife” as described above. "Type".
切刃が溝状の凹所に設けられた「押し切り型」の切断具は図１９に示すように、押し切りの腕のように二股になった凸部で被切断物を保持して刃に押し付けるようになっている。被切断物が粘着テープであれば二股の凸部に粘着保持されるので構造は比較的簡易になるが、そうでない場合は被切断物を保持するための構造が複雑となり、溝を広くしなければならない。溝幅が広い分、安全のために切刃をより深く設置する必要が生じ、製造コストの増加要因となる。 As shown in FIG. 19, the “push-cut type” cutting tool in which the cutting blade is provided in the groove-like recess holds the object to be cut with a bifurcated convex portion like a push-cut arm and presses it against the blade. It is like that. If the object to be cut is an adhesive tape, the structure is relatively simple because it is held by the bifurcated convex part, but if not, the structure for holding the object to be cut becomes complicated and the groove must be widened. I must. Since the groove width is wide, it is necessary to install the cutting blade deeper for safety, which increases the manufacturing cost.
切刃が溝状の凹所に設けられた「まな板・包丁型」の切断具は、図２０に示すように、まな板に相当するローラや刃受け部で被切断物を溝の中の切刃に押圧する。安全のために溝幅を細くすると、それに応じてローラや刃受け部も細くする必要があり、切断のたびに切刃とローラや刃受け部の毎回同じところが押圧されるようになる。そのため切刃やローラなどのいずれかまたは双方に損傷・欠落などが生じやすいという弱点がさらに増幅される。 As shown in FIG. 20, a cutting tool of a “chopping board / knife type” with a cutting edge provided in a groove-shaped recess is a cutting blade in a groove with a roller or blade receiving portion corresponding to a cutting board. Press on. If the groove width is reduced for safety, it is necessary to reduce the roller and blade receiving portion accordingly, and the same portion of the cutting blade and the roller and blade receiving portion are pressed each time cutting is performed. Therefore, the weak point that damage or omission is likely to occur in either or both of the cutting blade and the roller is further amplified.
通常市販されている粘着テープカッターの殆どは紙の切りたいところに定規などを当てて縁からはみ出した部分を摘んで引き裂いたり、引きちぎったりする方法を応用したもの（以後「引き裂き・引きちぎり型」という）で、定規の縁に替えて非鋭利な刃を使用している。一方、安全性を無視して切断性能を追求したものも多数提案されている。それらの殆どは、「引き裂き・引きちぎり型」の切刃を非鋭利刃ではなく、鋭利な刃とすることによって切断性能を向上させたものであり（例えば特許文献６、特許文献１５、特許文献１６、特許文献１７、特許文献１８）、何れも切刃の部分が剥き出しになっているか、あるいは誤操作で切刃が剥き出しになる構造である。「引き裂き型・引きちぎり型」では切刃に指が当たらないように切刃の近傍に障壁を設けると、切断そのものができなくなるので安全障壁を施したものはまだ提案されていない。 Most of the commercially available adhesive tape cutters apply a method that applies a ruler etc. to the part of the paper that you want to cut and then picks and tears the part that protrudes from the edge (hereinafter referred to as "Tear / Tear Type") In this case, a non-sharp blade is used instead of the edge of the ruler. On the other hand, many have been proposed that pursue cutting performance while ignoring safety. Most of them have improved cutting performance by using a “tear / tear-type” cutting blade instead of a non-sharp blade instead of a sharp blade (for example, Patent Document 6, Patent Document 15, Patent Document). 16, Patent Document 17, and Patent Document 18), all have a structure in which the cutting blade is exposed or the cutting blade is exposed by an erroneous operation. In the “tear type / tear type”, if a barrier is provided in the vicinity of the cutting blade so that the finger does not hit the cutting blade, the cutting itself cannot be performed, so that a safety barrier is not yet proposed.
本発明の課題は、柔軟な薄い紙・布・フィルムあるいは粘着テープなどを切断対象とする切断具に装備するための、切刃に指などが絶対に触れないという意味で絶対安全な、かつ構造の簡易な切断機構部分を提供することである。 The object of the present invention is to provide a flexible thin paper, cloth, film or adhesive tape to a cutting tool to be cut, and is absolutely safe in the sense that a finger etc. will never touch the cutting blade. It is to provide a simple cutting mechanism part.
本発明は、二つの障壁面が形成する隅角部に切刃を配置することによって上記課題を解決したものである。これは被切断物を切刃に押し付ける役目をする挿入子の概念を導入することによって可能となった。さらに、挿入子の前縁形状を紙に定規を当てて紙の端を摘んで引き裂く時の紙の形状を模した形状とすることによって、被切断物が切刃の一点で接し、そこに応力が集中することになり、裂け目の起点を容易に生じさせることが可能となった。このような挿入子の前縁形状も課題を解決するための重要な要素である。また、挿入子を挿入する時に被切断物が弛んでいると力が掛からないので、被切断物を適当な力で引っ張れるようにするための保持子は切断機構部分の不可欠な要素である。従来のものは、安全のために切刃を溝状の凹所内に置いていたので、保持子も溝状の凹所内に収める必要があり、切断機構部分の構造が複雑になっていた。本発明では被切断物を前障壁面もしくは前障壁面アーム部と保持子とで挟み込む簡易な構造となっている。これは、安全のために「切刃を二つの障壁面の隅角部に置く」という、従来になかった発想から派生した成果である。 This invention solves the said subject by arrange | positioning a cutting blade in the corner part which two barrier surfaces form. This is made possible by introducing the concept of an inserter that serves to press the object to be cut against the cutting edge. Furthermore, by making the leading edge of the insert a shape that mimics the shape of the paper when a paper is applied to the paper and the edge of the paper is picked and torn, the object to be cut comes into contact with one point of the cutting edge and stress is applied to it. It becomes possible to easily generate the starting point of the tear. Such a leading edge shape of the inserter is also an important element for solving the problem. Further, since a force is not applied if the object to be cut is loose when the inserter is inserted, the retainer for allowing the object to be pulled with an appropriate force is an indispensable element of the cutting mechanism portion. In the prior art, the cutting blade is placed in the groove-like recess for safety, so the holder needs to be housed in the groove-like recess, and the structure of the cutting mechanism is complicated. The present invention has a simple structure in which the object to be cut is sandwiched between the front barrier surface or the front barrier surface arm portion and the retainer. This is a result derived from an unprecedented idea of “putting the cutting blade at the corner of the two barrier surfaces” for safety.
請求項１は、柔軟な薄ものを対象とする切断具の切断機構部であって、切刃１の一方の側には挿入子２が挿入できるだけの間隔を有する位置に切刃１と平行な平面状の、または切刃１の側に傾斜した平面状もしくは曲面状の奥障壁面３が配置され、切刃１の他方の側には切刃１に近接して前障壁面４が配置されること、および切刃１の刃先が前障壁面４と面一になるように、もしくは切刃1の刃先が前障壁面4を含む平面と奥障壁面3とで形成される隅角部に突き出すように配置され、かつ挿入子２の前縁の稜線部分の形状が一方の端において急勾配でその後勾配を緩めながら他端に至るような形状であることもしくは一定の勾配を持った形状であること、さらに前障壁面４もしくは前障壁面アーム部１１と共に被切断物を挟み込んで保持するための保持子５と挿入子２とが一体に、回転自在にもしくは摺動自在に結合されていることを特徴とする切断機構部である。 Claim 1 is a cutting mechanism portion of a cutting tool intended for a flexible thin object, and is parallel to the cutting blade 1 at a position where an inserter 2 can be inserted on one side of the cutting blade 1. A flat or curved rear barrier surface 3 that is flat or inclined toward the cutting edge 1 is disposed, and a front barrier surface 4 is disposed on the other side of the cutting blade 1 adjacent to the cutting edge 1. And the edge of the cutting edge 1 is flush with the front barrier surface 4 or the edge of the cutting edge 1 is at a corner formed by a plane including the front barrier surface 4 and the back barrier surface 3. The shape of the ridge line portion of the leading edge of the insert 2 is a steep slope at one end and then the other end while relaxing the slope, or a shape having a constant slope. In addition, the object to be cut is sandwiched and held together with the front barrier surface 4 or the front barrier surface arm 11. It is integral with the retainer 5 and the inserter 2 in a cutting mechanism, characterized in that it is rotatably or slidably coupled.
請求項２は、柔軟な薄ものを対象とする切断具の切断機構部であって、切刃１の一方の側には挿入子２が挿入できるだけの間隔を有する位置に切刃１の側に傾斜した平面状もしくは曲面状の奥障壁面３が配置され、切刃１の他方の側は切刃１に近接して前障壁面４が配置されること、および切刃１の刃先が前障壁面４を含む平面と奥障壁面３とで形成される隅角部に突き出すように配置され、かつ隅角部に突き出された切刃１の刃先の部分の形状が一方の端において急勾配でその後勾配を緩めながら他端に至るような形状もしくは一定の勾配を持った形状、もしくはＶ字型、逆Ｖ字型もしくは鋸刃状の形状であること、さらに被切断物を保持するための保持子５と挿入子２の前縁とが切刃１を挿入できるだけの間隔をあけて一体に形成されることを特徴とする切断機構部である。 Claim 2 is a cutting mechanism portion of a cutting tool for a flexible thin object, and on the side of the cutting blade 1 at a position where the inserter 2 can be inserted on one side of the cutting blade 1. An inclined flat or curved back barrier surface 3 is arranged, the other side of the cutting blade 1 is arranged close to the cutting blade 1 and a front barrier surface 4 is arranged, and the cutting edge of the cutting blade 1 is a front barrier. The shape of the portion of the cutting edge of the cutting blade 1 that is disposed so as to protrude from the corner formed by the plane including the surface 4 and the back barrier surface 3 and that protrudes from the corner is steep at one end. After that, the shape reaches the other end while loosening the gradient, or a shape with a certain gradient, or a V-shaped, inverted V-shaped or saw-blade shape, and holding to hold the workpiece The child 5 and the front edge of the insert 2 are integrally formed with a space sufficient to insert the cutting blade 1. A cutting mechanism, wherein the door.
本発明により、柔軟な薄い紙・布・フィルムあるいは粘着テープなどの切断具に装備するための、切刃に指などが絶対に触れないという意味で絶対安全かつ構造簡易な切断機構部分を提供することが可能となり、幼児や高齢者など予想外の使い方をする可能性のある家庭環境だけでなく、医療現場など汚染物や汚濁物を薄手の防護手袋で扱う作業環境においても安心して使える切断具を実現することができるようになった。 According to the present invention, there is provided a cutting mechanism portion that is absolutely safe and has a simple structure in the sense that a finger or the like never touches the cutting blade for mounting on a cutting tool such as flexible thin paper, cloth, film or adhesive tape. Cutting tool that can be used with peace of mind not only in the home environment where infants and elderly people may use it unexpectedly, but also in work environments where contaminants and contaminants are handled with thin protective gloves, such as in the medical field Can now be realized.
図１は請求項１の切断機構部分の構成要素の基本的な配置を示す代表図である。図の右下部は前障壁面４と保持子５とで被切断物を挟み込んだ状態で、被切断物の他端を引張って奥障壁面にあてがいながら挿入子を挿入し、丁度被切断物が切刃に接している状態を示す説明図である。円内は指などが切刃１に接するのを障壁面３、４が防いでいることを示す説明図である。図１は奥障壁面３が切刃１と平行な平面状で、切刃１の刃先が前障壁面４と面一に配置され、挿入子2の前縁の稜線が一方の端において急勾配でその後勾配を緩めて他端に至っている例を示している。図２は請求項２に関わる切断機構部を採用した切断具の例を示しており、奥障壁面３が切刃１を覆うような曲面状で、切刃１の刃先が前障壁面４を含む平面と奥障壁面３とで形成される隅角部に突き出すように配置された例を示している。この図では見難いが、隅角部に突き出た切刃1の刃先には一定の勾配を持たせてある。 FIG. 1 is a representative view showing a basic arrangement of components of a cutting mechanism portion of claim 1. In the lower right part of the figure, the object to be cut is sandwiched between the front barrier surface 4 and the retainer 5, and the inserter is inserted while pulling the other end of the object to be cut and applied to the back barrier surface. It is explanatory drawing which shows the state which is in contact with the cutting blade. It is explanatory drawing which shows that the barrier surfaces 3 and 4 prevent a finger etc. from contacting the cutting blade 1 in the inside of a circle. In FIG. 1, the rear barrier surface 3 is a flat surface parallel to the cutting edge 1, the cutting edge of the cutting edge 1 is arranged flush with the front barrier surface 4, and the ridgeline of the front edge of the insert 2 is steep at one end. Then, the example is shown in which the gradient is relaxed and the other end is reached. FIG. 2 shows an example of a cutting tool that employs a cutting mechanism section according to claim 2, wherein the back barrier surface 3 has a curved surface shape that covers the cutting blade 1, and the cutting edge of the cutting blade 1 has the front barrier surface 4. The example arrange | positioned so that it may protrude in the corner | angular part formed with the plane to include and the back barrier surface 3 is shown. Although it is difficult to see in this figure, the cutting edge of the cutting blade 1 protruding at the corner is given a certain gradient.
切刃１と障壁面３、４との具体的な寸法関係あるいは奥障壁面の傾斜の程度は、その安全対象として幼児のように小さな指を想定するのか、毒劇物防護の薄い手袋を想定するのか、皮膚の表皮に傷が付く程度は許容されるのかなど、要求される安全仕様に則って決めることができる。図３から図１４までは、請求項１の切断機構を有する切断具の実施例である。切刃１を前障壁面４より沈めると切断性が極端に失われるので面一ないし製造誤差を見込んで両障壁面が作る隅角部に突出すようにする。奥障壁面３を切刃１に近づけると安全であるが、挿入子２を挿入するための寸法によって制約を受ける。特に厳しい安全仕様が要求される場合は、例えば図３、図４や図５の挿入子回転軸１６や切刃ブロック回転軸１２を保持子５や前障壁面アーム部１１の先端に近づけて図６のようにすることによって、奥障壁面３が切刃1をより深く覆えるようになり安全性を高めることができる。図８、図９および図１０のように保持子５に支点１５を設けるタイプのものでは、支点１５を挿入子側に近づけることによって、挿入子２の回転の曲率半径を小さくでき奥障壁面３が切刃1をより深く覆うことができる。図１１のように挿入子２と保持子５が摺動自在に結合されている場合では、図１２のように挿入子２が摺動する角度を伏せることによって、切刃１を奥障壁面３がより深く覆うことができ安全性を増すことができる。図１３は保持子５と挿入子２とを切刃1に平行な面で回転自在に結合したものであるが、やはり挿入子２の回転する面を伏せることによって、切刃1を奥障壁面3がより深く覆うことができるようになり、安全性を高めることができる。 The specific dimensional relationship between the cutting edge 1 and the barrier surfaces 3 and 4 or the degree of inclination of the back barrier surface is assumed to be a small finger like an infant as a safety target, or a glove with a poisonous deleterious substance protection is assumed It can be determined according to the required safety specifications, such as whether or not the degree to which the skin epidermis is damaged is acceptable. FIGS. 3 to 14 show an embodiment of a cutting tool having the cutting mechanism of claim 1. If the cutting edge 1 is submerged from the front barrier surface 4, the cutting ability is extremely lost, so that it is projected from the corners formed by both barrier surfaces in consideration of flushness or manufacturing error. Although it is safe to bring the back barrier surface 3 close to the cutting blade 1, it is restricted by the dimensions for inserting the insert 2. When particularly strict safety specifications are required, for example, the inserter rotating shaft 16 and the cutting blade block rotating shaft 12 of FIGS. 3, 4, and 5 are brought close to the tips of the retainer 5 and the front barrier surface arm portion 11. By making it like 6, the back barrier surface 3 can cover the cutting blade 1 deeper, and safety can be improved. In the type in which the fulcrum 15 is provided on the retainer 5 as shown in FIGS. 8, 9, and 10, the radius of curvature of rotation of the insert 2 can be reduced by bringing the fulcrum 15 closer to the inserter side. Can cover the cutting blade 1 deeper. In the case where the inserter 2 and the retainer 5 are slidably coupled as shown in FIG. 11, the cutting blade 1 is moved to the back barrier surface 3 by reducing the angle at which the inserter 2 slides as shown in FIG. Can be covered deeper and safety can be increased. FIG. 13 shows the retainer 5 and the insert 2 that are rotatably coupled with a plane parallel to the cutting edge 1, but the cutting edge 1 is also moved to the back barrier surface by turning down the rotating surface of the insert 2. 3 can be covered more deeply, and can increase safety.
図１５、１６、１７、および１８は請求項２の切断機構部を有する切断具の実施例である。切刃１の刃先が前障壁面４を含む平面と奥障壁面３とで形成される隅角部に突き出し、突き出された刃先の部分の形状が一方の端において急勾配でその後勾配を緩めながら他端に至るような形状であることもしくは一定の勾配を持った形状またはＶ字型、逆Ｖ字型もしくは鋸刃状の形状になることが請求項２の特徴である。請求項１の場合と同様、特に厳しい安全仕様が要求される場合は、図１５や図１７に図１６のような切刃ブロック回転軸１２を設け、それをなるべく切刃１寄りに設けることにより奥障壁面３で切刃１を深く覆うことができるようにすることができる。図１８についても図１０と同様の方法で対応することができる。なお、切刃１の左右の両側端部にも障壁を設けるか、または図１、２で示すように切刃１の両側端部を障壁面３、４の充分内側になるようにすることによって切刃１の左右の側端部の安全対策とすることができる。 15, 16, 17, and 18 are examples of a cutting tool having the cutting mechanism of claim 2. The cutting edge of the cutting edge 1 protrudes into a corner formed by a plane including the front barrier surface 4 and the back barrier surface 3, and the shape of the protruding blade edge is steep at one end and then the inclination is relaxed. It is the feature of claim 2 that it is a shape that reaches the other end, or a shape having a certain gradient, or a V-shaped, inverted V-shaped or saw-tooth shape. As in the case of claim 1, when particularly strict safety specifications are required, a cutting blade block rotating shaft 12 as shown in FIG. 16 is provided in FIGS. 15 and 17 and is provided as close to the cutting blade 1 as possible. The cutting edge 1 can be deeply covered with the back barrier surface 3. FIG. 18 can also be handled by the same method as in FIG. In addition, by providing a barrier also in the right and left both ends of the cutting blade 1, or by making the both ends of the cutting blade 1 sufficiently inside the barrier surfaces 3 and 4 as shown in FIGS. This can be a safety measure for the left and right side edges of the cutting blade 1.
奥障壁面３は平滑な平面である必要はなく、障壁面に指が没入・貫入しなければ凹凸があっても、格子状であっても、防護柵のようなものであってもよい。前障壁面４も同様であるが、前障壁面は指を切刃１に近づけさせないためにある程度の奥行きが必要である。また、前障壁面４には保持子５とともに被切断物を挟んで保持する機能を担っている。図４、図５および図６のように切刃ブロック回転軸１２を設ける場合には、切刃ブロック回転軸１２の回転を支えるために前障壁面アーム部１１を伸ばして保持子５上に足場を確保できるようにすることも必要があるが、そうすることによって、前障壁面４に代わって前障壁面アーム部１１が保持子５とともに被切断物を挿入子２の挿入前に挟み込んで保持することができる。粘着性のテープが被切断物である場合は、保持子５に粘着し保持されるので挟み込む必要はない。 The back barrier surface 3 does not need to be a smooth flat surface, and may be uneven, latticed, or like a protective fence if a finger does not immerse or penetrate the barrier surface. The front barrier surface 4 is the same, but the front barrier surface needs a certain depth to prevent the finger from approaching the cutting blade 1. Further, the front barrier surface 4 has a function of holding the object to be cut together with the holder 5. When the cutting blade block rotating shaft 12 is provided as shown in FIGS. 4, 5 and 6, the front barrier surface arm portion 11 is extended to support the rotation of the cutting blade block rotating shaft 12, and the scaffold is placed on the holder 5. However, by doing so, the front barrier surface arm portion 11 holds the object to be cut together with the retainer 5 before inserting the inserter 2 in place of the front barrier surface 4. can do. In the case where the adhesive tape is an object to be cut, it is not necessary to be sandwiched because it is adhered to and held by the retainer 5.
挿入子２は切刃１に被切断物を押し付けて切断するためのものである。挿入子２の前縁の稜線と切刃１の刃先の稜線とは平行ではなく幾らかの勾配をつけることによって、被切断物を切刃１に一点で接触させて応力を集中し、容易に切断の起点を作ることができるようになる。前縁の一方の端の勾配が急勾配であれば、そこで切断の起点をつくることができるので後は他端に向かって勾配を緩めても亀裂は伝播する。充分な勾配を持たせることができるならば、全体に一定の勾配を持たせてもよい。請求項２では挿入子２にではなく切刃１に同様の形状を持たせている。図からは読み取りづらいが、図2では切刃1の先端に一定の勾配を持たせた形状としている。なお、挿入子は図１、図２に例示されているような板状である必要はなく、上述のような前縁形状を有しておれば棒状のものであっても所期の効果は達せられる。また、直な棒状の挿入子であっても、図１３の実施例１１のように挿入子２の一端を回転軸にして、切刃１と平行な面で回転させて奥障壁面３と切刃１との間に跳ね上げつるべを落とし込むように挿入すると、回転軸が切刃より低い場合は挿入子２は切刃の一端で急勾配で交わり、その後他端に至るまで勾配を緩めながら交わるので勾配を付けたのと同じ効果が得られる。 The insert 2 is for pressing an object to be cut against the cutting blade 1 for cutting. The ridgeline of the leading edge of the insert 2 and the ridgeline of the cutting edge of the cutting blade 1 are not parallel but have a certain gradient so that the object is brought into contact with the cutting blade 1 at one point and stress is concentrated easily. It becomes possible to make the starting point of cutting. If the slope of one end of the leading edge is steep, the starting point of cutting can be created there, and the crack propagates even if the slope is loosened toward the other end. If a sufficient gradient can be provided, the entire gradient may be provided. According to the second aspect, not the insert 2 but the cutting blade 1 has the same shape. Although it is difficult to read from the figure, in FIG. 2, the tip of the cutting blade 1 has a shape with a certain gradient. The inserter does not need to have a plate shape as illustrated in FIGS. 1 and 2, and the desired effect can be obtained even if it has a bar shape as long as it has the above-described leading edge shape. Reachable. Further, even in the case of a straight rod-like inserter, as shown in the eleventh embodiment of FIG. When the rotary shaft is lower than the cutting blade, the inserter 2 intersects with a steep slope at one end of the cutting blade and then relaxes until reaching the other end. Therefore, the same effect as the gradient can be obtained.
保持子５は定規を当てて紙を引き裂くときに、紙が動かないように机などに押し付ける定規の腹に相当するものである。請求項1の切断機構部の基本的な操作は、「まず、被切断物を前障壁面４又は前障壁面アーム部１１と保持子５で挟み込む、次に被切断物の他端を引っ張って適度の張力を与えながら挿入子２を切刃１と奥障壁面３との間に挿入する」という手順になる。したがって、切刃ブロック回転軸を設けないタイプの切断機構部では、保持子と挿入子を互いに回転自在あるいは摺動自在に結合しておけば、これらの操作をシーケンシャルに行うことが容易になる。また、保持子５は平面である必要はなく、図５のようなフォーク状でも、図８、図９あるいは図１０のように曲面や中折れの平面でもよい。粘着テープを切断対象とする請求項２の切断機構部分は、粘着テープを保持子と挿入子に橋渡すように粘着させるだけでよい。この場合、保持子の被切断物に当たる面と挿入子の前縁とが面一に形成されることが望ましい。 The retainer 5 corresponds to the ruler's belly pressed against a desk or the like so that the paper does not move when the ruler is applied to tear the paper. The basic operation of the cutting mechanism part of claim 1 is as follows: "First, the object to be cut is sandwiched between the front barrier surface 4 or the front barrier surface arm part 11 and the retainer 5, and then the other end of the object to be cut is pulled. The procedure is “insert the insert 2 between the cutting blade 1 and the back barrier surface 3 while applying an appropriate tension”. Therefore, in a cutting mechanism portion of a type not provided with a cutting blade block rotating shaft, if the holder and the inserter are coupled to each other so as to be rotatable or slidable, these operations can be easily performed sequentially. Further, the retainer 5 does not have to be a flat surface, and may be a fork as shown in FIG. 5 or a curved surface or a bent surface as shown in FIG. 8, FIG. 9, or FIG. The cutting mechanism portion of claim 2 that uses the adhesive tape as a cutting target only needs to adhere the adhesive tape so as to bridge the holder and the inserter. In this case, it is desirable that the surface of the retainer that contacts the workpiece and the front edge of the inserter be formed flush with each other.
図３は、請求項１の切断機構部が非粘着性のテープやリボンなど（以下この段落で「テープ」と総称する）の切断具に採り入れられた実施例1である。これは奥障壁面３が切刃１の側に傾斜した曲面で、切刃１の刃先は前障壁面４と面一で、挿入子２の前縁の勾配が一方の端において急勾配でその後勾配を緩めながら他端に至る形状で、かつ保持子５と挿入子２が回転自在に結合されているタイプの切断機構部である。この例の切断具本体３５はテープロール３１に廻動自在に取り付けられ、その切断機構部は切刃１、挿入子２、奥障壁面３、前障壁面４および保持子５で構成されている。挿入子２は挿入子回転軸１６を介して保持子５に、保持子５は保持子回転軸１４を介して切断具本体３５に回転自在に結合されている。前障壁面４、切刃１および奥障壁面３は切断具本体３５と一体に形成されている。これを最初に使用するときには、テープ３０を保持子回転軸１４の下を通して必要な長さ繰り出す。テープ３０を所要の長さだけ繰り出し、挿入子２を押さえ込む。挿入子回転軸１６には図示していない発条があり、この発条は保持子回転軸１４内の収められている発条（図示せず）よりも剛性が大きいので、指などで挿入子２を押さえ込むと保持子５が前障壁４に当たるまで回転し、テープ３０を押さえて保持する。テープ３０に適度の張力を掛けながら更に挿入子２を押し続けると、挿入子回転軸１６が回転しテープ３０は挿入子２で切刃１に押し付けられて切断される。挿入子２の前縁１３の稜線の形状はＡ−Ａ矢視示すように図の奥の方の勾配が急で手前に来るにしたがって勾配が緩くなるような形状をしているので、テープは奥の方から順次一点で切刃１に接触し、切断の起点となる亀裂が伝播して切断される。挿入子２の挿入子回転軸１６廻りの回転半径を小さくすれば、奥障壁面３が切刃１を覆う度合いを大きくすることができる。 FIG. 3 shows a first embodiment in which the cutting mechanism portion of claim 1 is incorporated in a cutting tool such as a non-adhesive tape or ribbon (hereinafter collectively referred to as “tape” in this paragraph). This is a curved surface in which the back barrier surface 3 is inclined toward the cutting edge 1, the cutting edge of the cutting blade 1 is flush with the front barrier surface 4, and the slope of the leading edge of the insert 2 is steep at one end and thereafter This is a cutting mechanism portion of a type in which the holder 5 and the inserter 2 are rotatably coupled with each other in a shape reaching the other end while relaxing the gradient. The cutting tool main body 35 of this example is attached to the tape roll 31 so as to be freely rotatable, and the cutting mechanism is composed of a cutting blade 1, an inserter 2, a back barrier surface 3, a front barrier surface 4 and a retainer 5. . The inserter 2 is rotatably coupled to the holder 5 via the inserter rotation shaft 16, and the retainer 5 is rotatably coupled to the cutting tool body 35 via the retainer rotation shaft 14. The front barrier surface 4, the cutting edge 1, and the back barrier surface 3 are formed integrally with the cutting tool main body 35. When this is used for the first time, the tape 30 is fed out under the holder rotating shaft 14 for a required length. The tape 30 is fed out for a required length, and the inserter 2 is pressed down. The insertion shaft 16 has a ridge (not shown), and this ridge has a higher rigidity than the ridge (not shown) housed in the holder rotation shaft 14, so that the insert 2 is pressed down with a finger or the like. And the retainer 5 rotates until it hits the front barrier 4 and presses and holds the tape 30. When the inserter 2 is further pushed while applying an appropriate tension to the tape 30, the inserter rotating shaft 16 rotates and the tape 30 is pressed against the cutting blade 1 by the inserter 2 and cut. The shape of the ridgeline of the leading edge 13 of the insert 2 is such that the gradient in the back of the figure is steep as shown in the arrow AA, and the gradient becomes gentler as it comes to the front. The cutting blade 1 is contacted at one point sequentially from the back, and the crack that becomes the starting point of cutting propagates and is cut. If the rotation radius of the insert 2 around the inserter rotation axis 16 is reduced, the degree to which the back barrier surface 3 covers the cutting blade 1 can be increased.
図４は請求項１の切断機構部が非粘着性または粘着性のテープやリボンなど（以下この段落で「テープ」と総称する）の切断具に採り入れられた実施例２である。これは奥障壁面３が切刃１の側に傾斜した平面で、切刃１の刃先は前障壁面４と面一で、挿入子の前縁が一定の勾配を持った形状で、かつ挿入子２と一体に形成された保持子５と前障壁面アーム部１１とで被切断物を挟み込むタイプの切断機構部である。この例の切断具本体３５はテープロール３１の円周上に廻動自在に取り付けられており、その切断機構部は切刃１、奥障壁面３および前障壁面４からなる切刃ブロック６、挿入子２、保持子５および前障壁面アーム部１１で構成されている。切刃ブロック６が切刃ブロック回転軸１２を介して前障壁面アーム部１１に、前障壁面アーム部１１は前障壁回転軸１７を介して切断具本体３５に回転自在に結合されている。挿入子２と保持子５は切断具本体３５と一体に形成されている。切刃ブロック回転軸１２および前障壁回転軸１７には図示していない発条が入っており、切刃ブロック回転軸１２の発条の方が前障壁回転軸１７の発条よりも強くしてあるので、非粘着性のテープの場合は、テープ切断のため切刃ブロック６を保持子５の方に押していくと図４で示すように先ず前障壁回転軸１７が回転し、前障壁面アーム部１１が保持子５に当たりテープを保持する。次に切刃ブロック６が挿入子２に向けて回転して、挿入子２が切刃１と奥障壁３の間にテープ３０を挿入して切断する。粘着テープの場合は、テープロール３１から必要長さ繰り出されたテープは保持子５と挿入子２に橋渡すように粘着保持される。テープ切断のために切刃ブロック６を押していくと前障壁面アーム部１１が保持子５に当たる前に粘着保持されたテープ３０に当たるので、切刃ブロック回転軸１２が回転を始め、挿入子２の最頂部に粘着保持されているテープ３０に切刃１が一点で接し応力集中により切断の起点となる亀裂が生じる。更に切刃ブロック６を押すことにより亀裂が伝播しテープが切断される。この実施例では、操作に便利なように切断具本体に指穴１５が設けられている。その他については実施例１と同様である。 FIG. 4 shows an embodiment 2 in which the cutting mechanism of claim 1 is incorporated in a cutting tool such as non-adhesive or adhesive tape or ribbon (hereinafter collectively referred to as “tape” in this paragraph). This is a plane in which the back barrier surface 3 is inclined toward the cutting edge 1, the cutting edge of the cutting blade 1 is flush with the front barrier surface 4, and the leading edge of the insert has a certain gradient and is inserted. This is a cutting mechanism portion of a type in which an object to be cut is sandwiched between a retainer 5 formed integrally with the child 2 and a front barrier surface arm portion 11. The cutting tool main body 35 of this example is rotatably mounted on the circumference of the tape roll 31, and the cutting mechanism part thereof is a cutting blade block 6 comprising a cutting blade 1, a back barrier surface 3 and a front barrier surface 4, The inserter 2, the retainer 5, and the front barrier surface arm portion 11 are configured. The cutting blade block 6 is rotatably coupled to the front barrier surface arm portion 11 via the cutting blade block rotating shaft 12, and the front barrier surface arm portion 11 is rotatably coupled to the cutting tool main body 35 via the front barrier rotating shaft 17. The inserter 2 and the holder 5 are formed integrally with the cutting tool main body 35. The cutting edge block rotating shaft 12 and the front barrier rotating shaft 17 have ridges (not shown), and the ridges of the cutting blade block rotating shaft 12 are stronger than the ridges of the front barrier rotating shaft 17. In the case of a non-adhesive tape, when the cutting blade block 6 is pushed toward the retainer 5 for cutting the tape, the front barrier rotating shaft 17 first rotates as shown in FIG. The tape hits the holder 5 and holds the tape. Next, the cutting blade block 6 rotates toward the insert 2, and the insert 2 inserts and cuts the tape 30 between the cutting blade 1 and the back barrier 3. In the case of an adhesive tape, the tape fed out from the tape roll 31 by the required length is adhesively held so as to bridge the holder 5 and the inserter 2. When the cutting blade block 6 is pushed for cutting the tape, the front barrier surface arm portion 11 comes into contact with the adhesively held tape 30 before it hits the retainer 5, so that the cutting blade block rotating shaft 12 starts to rotate, and the insert 2 The cutting blade 1 comes into contact with the tape 30 that is adhesively held at the topmost portion at one point, and a crack that becomes a starting point of cutting is generated by stress concentration. Further, by pushing the cutting blade block 6, the crack propagates and the tape is cut. In this embodiment, finger holes 15 are provided in the cutting tool body for convenient operation. Others are the same as in the first embodiment.
図５は請求項１の切断機構部が非粘着性または粘着性のテープやリボンなどの切断具に採り入れられた実施例３である。これは奥障壁面３が切刃１の側に傾斜した平面で、切刃１の刃先は前障壁面４と面一で、挿入子２の前縁が一定の勾配を持った形状で、かつ挿入子２と一体に形成された保持子５と前障壁面アーム部１１とで被切断物を挟み込むタイプの切断機構部である。この例の切断具はテープロールに取り付けられるものではなく、既に繰り出されたテープやリボンなどの途中から切断するための切断具を想定したものであり、その切断機構部は切刃１、奥障壁面３および前障壁面４からなる切刃ブロック６、挿入子２、保持子５および前障壁面アーム部１１で構成されている。この切断機構部は実施例２と全く同じタイプの切断機構部で、切断具本体３５および前障壁面４と前障壁面アーム部１１の形状が違う以外は変わらない。本切断具による切断の概念は、人差し指または中指を指穴３２に通しておき、親指で切刃ブロックを押して切断するというものである。繰り出された非粘着性のテープやリボンの切断したい部分を切断具本体３５に開けられた取入れ口３３から取り込み、保持子５と挿入子２に横たえるように載せ、切刃ブロック６を保持子５の方に倒す。以降は図４の実施例２と全く同じ手順であり、粘着テープを対象とするときも実施例２と同様である。 FIG. 5 shows a third embodiment in which the cutting mechanism of claim 1 is incorporated into a non-adhesive or adhesive tape or ribbon cutting tool. This is a plane in which the back barrier surface 3 is inclined toward the cutting edge 1, the cutting edge of the cutting edge 1 is flush with the front barrier surface 4, and the front edge of the insert 2 has a certain slope, and This is a cutting mechanism portion of a type in which an object to be cut is sandwiched between a retainer 5 and a front barrier surface arm portion 11 formed integrally with the inserter 2. The cutting tool of this example is not attached to the tape roll, but is assumed to be a cutting tool for cutting from the middle of a tape or ribbon that has already been fed, and the cutting mechanism is the cutting blade 1 and the back barrier. A cutting blade block 6 comprising a surface 3 and a front barrier surface 4, an inserter 2, a retainer 5, and a front barrier surface arm portion 11 are formed. This cutting mechanism is the same type of cutting mechanism as in the second embodiment, and is the same except that the shapes of the cutting tool main body 35, the front barrier surface 4 and the front barrier surface arm 11 are different. The concept of cutting with this cutting tool is that the index finger or the middle finger is passed through the finger hole 32 and the cutting blade block is pushed with the thumb to cut. A portion to be cut of the non-adhesive tape or ribbon that has been fed out is taken in from the inlet 33 opened in the cutting tool body 35 and placed so as to lie on the holder 5 and the inserter 2, and the cutting blade block 6 is placed on the holder 5. Defeat the person. The subsequent procedure is exactly the same as that of the second embodiment shown in FIG. 4 and is the same as that of the second embodiment when the adhesive tape is used.
図６は請求項１の切断機構部が非粘着性または粘着性のテープやリボンなど（以下この段落で「テープ」と総称する）の切断具に採り入れられた実施例４である。これは奥障壁面４が切刃１の側に傾斜した曲面で、切刃１の刃先が前障壁面４と面一で、挿入子２の前縁が一定の勾配を持った形状で、かつ挿入子２と一体に形成された保持子５と前障壁面アーム部１１とで被切断物を挟み込むタイプの切断機構部である。この例の切断具本体３５はテープロール３１の円周上に廻動自在に取り付けられており、その切断機構部は、切刃１、奥障壁面３および前障壁面４からなる切刃ブロック６、挿入子２、保持子５および前障壁面アーム部１１で構成されている。切刃ブロック６は切刃ブロック回転軸１２を介して前障壁面アーム部１１に、前障壁面アーム部１１は前障壁回転軸１７を介して切断具本体３５と回転自在に結合されている。挿入子２と保持子５は切断具本体３５と一体に形成されている。実施例２や実施例３の切刃ブロック回転軸１２を前障壁面アーム部１１の最前端までもっていき、切刃ブロック６の回転半径を極力小さくしたものである。こうすることによって実施例2などより奥障壁面３で切刃１をより深く覆うことができ、安全性を向上させるこができる。 FIG. 6 shows an embodiment 4 in which the cutting mechanism portion of claim 1 is incorporated in a cutting tool such as a non-adhesive or adhesive tape or ribbon (hereinafter collectively referred to as “tape” in this paragraph). This is a curved surface in which the back barrier surface 4 is inclined toward the cutting edge 1, the cutting edge of the cutting blade 1 is flush with the front barrier surface 4, and the leading edge of the insert 2 has a certain slope, and This is a cutting mechanism portion of a type in which an object to be cut is sandwiched between a retainer 5 and a front barrier surface arm portion 11 formed integrally with the inserter 2. The cutting tool main body 35 of this example is rotatably mounted on the circumference of the tape roll 31, and the cutting mechanism portion thereof is a cutting blade block 6 comprising a cutting blade 1, a back barrier surface 3 and a front barrier surface 4. , The inserter 2, the retainer 5, and the front barrier surface arm portion 11. The cutting blade block 6 is rotatably connected to the front barrier surface arm portion 11 via the cutting blade block rotating shaft 12, and the front barrier surface arm portion 11 is rotatably connected to the cutting tool main body 35 via the front barrier rotating shaft 17. The inserter 2 and the holder 5 are formed integrally with the cutting tool main body 35. The cutting blade block rotating shaft 12 of the second and third embodiments is brought to the foremost end of the front barrier surface arm portion 11, and the rotational radius of the cutting blade block 6 is made as small as possible. By doing so, the cutting edge 1 can be covered more deeply with the back barrier surface 3 than in the second embodiment and the safety can be improved.
図７は請求項１の切断機構部が非粘着性のテープやリボンなど（以下この段落で「テープ」と総称する）の切断具に採り入れられた実施例５である。これは奥障壁面３が切刃１の側に傾斜した平面で、切刃１が前障壁面４と面一で、挿入子２の前縁が一定の勾配を持った形状で、かつ挿入子２に回転自在に結合された保持子５と前障壁面４とで被切断物を挟み込むタイプの切断機構部である。この例の切断具本体３５はテープロール３１の円周上に廻動自在に取り付けられており、その切断機構部は、切刃１、奥障壁面３、前障壁面４および前障壁面アーム部１１からなる切刃ブロック６、挿入子２および保持子５で構成されている。切刃ブロック６は前障壁回転軸１７を介して切断具本体３５と結合され、保持子５は保持子回転軸１４を介して挿入子２に結合し、挿入子２は切断具本体３５と一体に形成されている。テープ３０を切断する時は、テープ３０を必要長さ繰り出して保持子５上に載せ切刃ブロック６を保持子５に押し当てて、前障壁面４と保持子５とでテープを挟み込んで保持する。テープに適当な張力をかけながら更に切刃ブロックを保持子５に押し当てる。保持子回転軸１４には図示してない発条があり、保持子５はテープ３０を保持しつつ後退し挿入子２がテープ３０を切刃１に押し付けて切断する構造となっている。 FIG. 7 shows a fifth embodiment in which the cutting mechanism of claim 1 is incorporated in a cutting tool such as a non-adhesive tape or ribbon (hereinafter collectively referred to as “tape” in this paragraph). This is a plane in which the back barrier surface 3 is inclined toward the cutting edge 1, the cutting edge 1 is flush with the front barrier surface 4, the front edge of the insert 2 has a certain slope, and the insert This is a cutting mechanism portion of a type in which an object to be cut is sandwiched between a retainer 5 and a front barrier surface 4 that are rotatably coupled to 2. The cutting tool main body 35 of this example is rotatably mounted on the circumference of the tape roll 31, and the cutting mechanism section includes the cutting blade 1, the back barrier surface 3, the front barrier surface 4, and the front barrier surface arm portion. 11 includes a cutting blade block 6, an inserter 2, and a holder 5. The cutting blade block 6 is coupled to the cutting tool main body 35 via the front barrier rotating shaft 17, the retainer 5 is coupled to the inserter 2 via the retainer rotating shaft 14, and the inserter 2 is integrated with the cutting tool main body 35. Is formed. When cutting the tape 30, the tape 30 is drawn out to the required length, placed on the holder 5, the cutting blade block 6 is pressed against the holder 5, and the tape is held between the front barrier surface 4 and the holder 5. To do. Further, the cutting blade block is pressed against the holder 5 while applying an appropriate tension to the tape. The retainer rotating shaft 14 has a not-shown ridge, and the retainer 5 moves backward while holding the tape 30 and the inserter 2 presses the tape 30 against the cutting blade 1 and cuts it.
図８は請求項１の切断機構部が非粘着性のテープやリボンなど（以下この段落で「テープ」と総称する）の切断具に採り入れられた実施例６である。これは奥障壁面３が切刃１の側に傾斜した平面で、切刃１が前障壁面４と面一で、挿入子の前縁が一定の勾配を持った形状で、かつ挿入子２と一体に形成された保持子５と前障壁面４とで被切断物を挟み込むタイプの切断機構部である。この例の切断具本体３５はテープロール３１に廻動自在に取り付けられており、その切断機構部は、切刃１、奥障壁面３、前障壁面４および前障壁面アーム部１１からなる切刃ブロック６、挿入子２および保持子５で構成されている。切刃ブロック６は前障壁回転軸１７を介して切断具本体３５に回転自在かつ摺動自在に結合されており、挿入子２と保持子５は切断具本体３５と一体に形成されている。実施例5の保持子５が挿入子２に回転自在に結合されているのに対して、本例の保持子５は挿入子２と一体に形成され、半円筒を伏せたような形状をしている。切刃ブロック６を回転し倒してくると保持子５の一点に当たり、そこでテープを保持する。更に押すとその点を支点にして切刃ブロックは回転し、接触する支点を順次挿入子の方に移し、切刃１と奥障壁面３の間に挿入子２が挿入される。この時、前障壁回転軸１７は跳ね上がる。このタイプのものは、実施例5のものよりも切刃１を奥障壁面で深く覆うことができる。半円筒を伏せたような形状を保持子５にではなく前障壁面４に付けても同様の効果が得られる。 FIG. 8 shows an embodiment 6 in which the cutting mechanism of claim 1 is incorporated in a cutting tool such as a non-adhesive tape or ribbon (hereinafter collectively referred to as “tape” in this paragraph). This is a plane in which the rear barrier surface 3 is inclined toward the cutting edge 1, the cutting edge 1 is flush with the front barrier surface 4, the front edge of the insert has a certain slope, and the insert 2 Is a cutting mechanism portion of a type in which an object to be cut is sandwiched between a retainer 5 and a front barrier surface 4 formed integrally with each other. The cutting tool main body 35 in this example is attached to the tape roll 31 so as to be freely rotatable, and the cutting mechanism section includes a cutting blade 1, a back barrier surface 3, a front barrier surface 4, and a front barrier surface arm section 11. The blade block 6, the inserter 2, and the holder 5 are configured. The cutting blade block 6 is rotatably and slidably coupled to the cutting tool body 35 via the front barrier rotating shaft 17, and the inserter 2 and the holder 5 are formed integrally with the cutting tool body 35. While the holder 5 of the fifth embodiment is rotatably coupled to the inserter 2, the retainer 5 of this example is formed integrally with the inserter 2 and has a shape like a half-cylinder. ing. When the cutting blade block 6 is rotated and turned down, it hits one point of the holder 5 and holds the tape there. When further pushed, the cutting blade block rotates with that point as a fulcrum, and the fulcrum to be contacted is sequentially moved toward the inserter, and the inserter 2 is inserted between the cutting blade 1 and the back barrier surface 3. At this time, the front barrier rotating shaft 17 jumps up. In this type, the cutting edge 1 can be covered more deeply with the back barrier surface than in the fifth embodiment. The same effect can be obtained even if a shape in which the semi-cylinder is turned down is formed not on the retainer 5 but on the front barrier surface 4.
図９は請求項１の切断機構部が非粘着性のテープやリボンなど（以下この段落で「テープ」という）の切断具に採り入れられた実施例７である。これは奥障壁面３が切刃１の側に傾斜した曲面で、切刃１が前障壁面４と面一で、挿入子２の前縁が一定の勾配を持った形状で、かつ挿入子２と一体に形成された保持子５と前障壁面４とで被切断物を挟み込むタイプの切断機構部である。この例の切断具本体３５はテープロール３１に廻動自在に取り付けられており、その切断機構部は、切刃１、挿入子２、奥障壁面３、前障壁面４および保持子５で構成されている。挿入子２は保持子５と一体に形成され、保持子５は保持子回転軸１４を介して切断具本体３５に回転自在かつ摺動自在に結合されている。奥障壁面３、切刃１および前障壁面４は切断具本体３５と一体に形成されている。実施例６は保持子５を半円筒状としたが、本実施例では保持子５の面を折って二つの平面としたものである。保持子５の面の折れ目が支点１５となって実施例６と同様の働きをする。また、実施例６では切刃ブロックの方を回転させたが、本例では保持子５の方を回転させている。保持子５の面ではなく、前障壁面４の方を折って支点を作っても同様の効果が得られる。 FIG. 9 shows a seventh embodiment in which the cutting mechanism of claim 1 is incorporated in a cutting tool such as a non-adhesive tape or ribbon (hereinafter referred to as “tape” in this paragraph). This is a curved surface in which the back barrier surface 3 is inclined toward the cutting edge 1, the cutting blade 1 is flush with the front barrier surface 4, and the front edge of the insert 2 has a certain slope, and the insert 2 is a cutting mechanism portion of a type in which an object to be cut is sandwiched between a retainer 5 and a front barrier surface 4 that are formed integrally with 2. The cutting tool main body 35 of this example is attached to the tape roll 31 so as to be freely rotatable, and the cutting mechanism portion includes a cutting blade 1, an inserter 2, a back barrier surface 3, a front barrier surface 4 and a retainer 5. Has been. The inserter 2 is formed integrally with the retainer 5, and the retainer 5 is rotatably and slidably coupled to the cutting tool body 35 via the retainer rotating shaft 14. The back barrier surface 3, the cutting edge 1 and the front barrier surface 4 are formed integrally with the cutting tool main body 35. In the sixth embodiment, the retainer 5 is semicylindrical, but in this embodiment, the surface of the retainer 5 is folded into two planes. The fold of the surface of the retainer 5 serves as a fulcrum 15 and functions in the same manner as in the sixth embodiment. In the sixth embodiment, the cutting blade block is rotated. In this example, the retainer 5 is rotated. The same effect can be obtained by folding the front barrier surface 4 instead of the surface of the retainer 5 to create a fulcrum.
図１０は請求項1の切断機構部が非粘着性のテープやリボンなど（以下この段落で「テープ」と総称する）の切断具に採り入れられた実施例８である。これは奥障壁面３が切刃１の側に傾斜した平面で、切刃１の刃先が前障壁面４と面一で、挿入子２の前縁が一定の勾配を持った形状で、かつ挿入子２と一体に形成された保持子５と前障壁面４とで被切断物を挟み込むタイプの切断機構部である。この例の切断具本体３５はテープロール・ホルダーを兼ねており、その切断機構部は、切刃１、挿入子２、奥障壁面３、前障壁面４および保持子５で構成されている。挿入子２は保持子５と一体に形成され、保持子５は保持子回転軸１４を介して切断具本体３５に回転自在かつ摺動自在に結合されている。切刃１、奥障壁面３および前障壁面４は切断具本体と一体に形成されている。これは実施例７と同様、保持子５の面を折って支点１５を形成している。切断の手順は、テープを適当な長さに繰り出した後、保持子のハンドル部７を押し下げて保持子の内側の面と前障壁面４とでテープを保持し、更に保持子ハンドル部７を押し下げると、保持子５は支点１５を軸に回転して挿入子２が切刃１と奥障壁面３との間に挿入され、切断が完了する。 FIG. 10 shows an embodiment 8 in which the cutting mechanism portion of claim 1 is incorporated in a cutting tool such as a non-adhesive tape or ribbon (hereinafter collectively referred to as “tape” in this paragraph). This is a plane in which the back barrier surface 3 is inclined toward the cutting edge 1, the cutting edge of the cutting edge 1 is flush with the front barrier surface 4, and the front edge of the insert 2 has a certain gradient, and This is a cutting mechanism portion of a type in which an object to be cut is sandwiched between a retainer 5 formed integrally with the inserter 2 and a front barrier surface 4. The cutting tool main body 35 of this example also serves as a tape roll holder, and its cutting mechanism is composed of a cutting blade 1, an inserter 2, a back barrier surface 3, a front barrier surface 4 and a retainer 5. The inserter 2 is formed integrally with the retainer 5, and the retainer 5 is rotatably and slidably coupled to the cutting tool body 35 via the retainer rotating shaft 14. The cutting blade 1, the back barrier surface 3, and the front barrier surface 4 are formed integrally with the cutting tool body. In the same manner as in Example 7, the fulcrum 15 is formed by folding the surface of the retainer 5. In the cutting procedure, after feeding the tape to an appropriate length, the handle portion 7 of the retainer is pushed down to hold the tape between the inner surface of the retainer and the front barrier surface 4. When pushed down, the retainer 5 rotates about the fulcrum 15 and the inserter 2 is inserted between the cutting blade 1 and the back barrier surface 3 to complete the cutting.
図１１は請求項１の切断機構部が非粘着性のテープやリボンなど（以下この段落で「テープ」と総称する）の切断具に採り入れられた実施例９である。これは奥障壁面３が切刃１の側に傾斜した平面で、切刃１の刃先が前障壁面４と面一で、挿入子の前縁が一定の勾配を持った形状で、挿入子２と保持子５が摺動自在に結合され、かつ保持子５と前障壁面４とで被切断物を挟み込むタイプの切断機構部である。この例の切断具本体３５はテープロール３１の円周上に廻動自在に取り付けられており、その切断機構部は、切刃１、挿入子２、奥障壁面３、前障壁面４および保持子５で構成されている。挿入子２は保持子５と摺動自在に結合され、保持子５は保持子回転軸１４を介して切断具本体３５と結合されている。奥障壁面３、切刃１および前障壁面４は切断具本体３５と一体に形成されている。挿入子２の摺動部と保持子回転軸１４には発条（図示せず）があり、挿入子２摺動部の発条の方を強く設定しておく。必要な長さのテープを繰り出した後、挿入子の頭部２０を押さえると、保持子回転軸１４が回転し、保持子５が前障壁面４に当たりテープを保持する。挿入子の頭部２０を更に押し続けると挿入子２がテープを切刃１に押し当てて切断が完了する。 FIG. 11 shows an embodiment 9 in which the cutting mechanism of claim 1 is incorporated in a cutting tool such as a non-adhesive tape or ribbon (hereinafter collectively referred to as “tape” in this paragraph). This is a plane in which the back barrier surface 3 is inclined toward the cutting edge 1, the cutting edge of the cutting edge 1 is flush with the front barrier surface 4, and the front edge of the insert has a certain slope. 2 and a retainer 5 are slidably coupled, and a cutting mechanism portion of a type in which an object to be cut is sandwiched between the retainer 5 and the front barrier surface 4. The cutting tool main body 35 in this example is rotatably mounted on the circumference of the tape roll 31. The cutting mechanism section includes a cutting blade 1, an inserter 2, a back barrier surface 3, a front barrier surface 4, and a holding member. It consists of children 5. The inserter 2 is slidably coupled to the retainer 5, and the retainer 5 is coupled to the cutting tool body 35 via the retainer rotating shaft 14. The back barrier surface 3, the cutting edge 1 and the front barrier surface 4 are formed integrally with the cutting tool main body 35. The sliding portion of the inserter 2 and the retainer rotating shaft 14 have ridges (not shown), and the ridge of the sliding portion of the inserter 2 is set stronger. After the necessary length of tape has been fed out and the head 20 of the inserter is pressed, the retainer rotating shaft 14 rotates and the retainer 5 hits the front barrier surface 4 and holds the tape. When the inserter head 20 is further pressed, the inserter 2 presses the tape against the cutting blade 1 to complete the cutting.
図１２は請求項１の切断機構部が非粘着性のテープやリボンなど（以下この段落で「テープ」と総称する）の切断具に採り入れられた実施例１０である。これは奥障壁面３が切刃１の側に傾斜した平面で、切刃１の刃先が前障壁面４を含む平面と奥障壁面３とで形成される隅角部に突き出され、挿入子２の前縁が切刃１に対して一定の勾配を持つような形状で、挿入子２と保持子５が摺動自在に結合され、かつ保持子５と前障壁面４とで被切断物を挟み込むタイプの切断機構部である。この例の切断具本体３５はテープロール３１の円周上に廻動自在に取り付けられており、その切断機構部は切刃１、挿入子２、奥障壁面３、前障壁面４および保持子５で構成されている。本実施例と実施例９の違いは、挿入子２の摺動角度だけである。本実施例は実施例9よりも挿入子２の摺動角度が伏せられており、その分奥障壁面３で切刃１を深く覆うことができて安全性が高まっている。 FIG. 12 shows an embodiment 10 in which the cutting mechanism of claim 1 is incorporated in a cutting tool such as a non-adhesive tape or ribbon (hereinafter collectively referred to as “tape” in this paragraph). This is a plane in which the back barrier surface 3 is inclined toward the cutting edge 1, and the cutting edge of the cutting blade 1 protrudes into a corner formed by the plane including the front barrier surface 4 and the back barrier surface 3, and the inserter 2 has a shape in which the front edge of the blade 2 has a certain gradient with respect to the cutting edge 1, the inserter 2 and the retainer 5 are slidably coupled, and the retainer 5 and the front barrier surface 4 are to be cut. It is a cutting mechanism part of the type which pinches | interposes. The cutting tool main body 35 of this example is rotatably mounted on the circumference of the tape roll 31, and the cutting mechanism part is the cutting blade 1, the inserter 2, the back barrier surface 3, the front barrier surface 4, and the retainer. 5 is comprised. The difference between the present embodiment and the ninth embodiment is only the sliding angle of the inserter 2. In the present embodiment, the sliding angle of the inserter 2 is made lower than that in the ninth embodiment, and the cutting edge 1 can be covered deeply by the back barrier surface 3 and the safety is increased accordingly.
図１３は請求項１の切断機構部が非粘着性のテープやリボンなど（以下この段落で「テープ」と総称する）の切断具に取り入れられた実施例１１である。これは奥障壁面３が切刃１と平行な平面で、切刃１の刃先が前障壁面４を含む平面と奥障壁面３とで形成される隅角部に突き出され、挿入子２と保持子５が回転自在に結合され、かつ保持子５と前障壁面４とで被切断物を挟み込むタイプの切断機構部である。この例の切断具本体３５はテープロール３１の円周上に廻動自在に取り付けられており、その切断機構部は、切刃１、挿入子２、奥障壁面３、前障壁面４および保持子５で構成されている。直な棒状の挿入子２はその一端を回転軸にして、保持子５と切刃１に平行な面で回転自在に結合され、保持子５は保持子回転軸１４を介して切断具本体３５と回転自在に結合されている。切刃１、奥障壁面３および前障壁面４は切断具本体３５と一体に形成されている。挿入子２は直な棒状であるが、その一端を軸に切刃１に平行な面で回転させる挿入子回転軸１６が切刃１よりも低い位置に設けられているので、挿入子２は切刃１の一端で急勾配で交わり、その後他端に至るまで勾配を緩めながら交わることとなる。したがって、挿入子の前縁に勾配を持たせたのと同じ効果が得られる。 FIG. 13 shows an embodiment 11 in which the cutting mechanism of claim 1 is incorporated in a cutting tool such as a non-adhesive tape or ribbon (hereinafter collectively referred to as “tape” in this paragraph). This is because the back barrier surface 3 is a plane parallel to the cutting edge 1, and the cutting edge of the cutting edge 1 protrudes into a corner formed by the plane including the front barrier surface 4 and the back barrier surface 3, This is a cutting mechanism portion of a type in which the retainer 5 is rotatably coupled and the object to be cut is sandwiched between the retainer 5 and the front barrier surface 4. The cutting tool main body 35 in this example is rotatably mounted on the circumference of the tape roll 31. The cutting mechanism section includes a cutting blade 1, an inserter 2, a back barrier surface 3, a front barrier surface 4, and a holding member. It consists of children 5. The straight rod-like insert 2 is rotatably coupled on a surface parallel to the retainer 5 and the cutting blade 1 with one end thereof as a rotation axis. The retainer 5 is connected to the cutting tool main body 35 via the retainer rotation shaft 14. And are freely coupled. The cutting blade 1, the back barrier surface 3, and the front barrier surface 4 are formed integrally with the cutting tool main body 35. Although the insert 2 is a straight bar, an inserter rotating shaft 16 that rotates on one end of the insert 2 in a plane parallel to the cutting blade 1 is provided at a position lower than the cutting blade 1. It intersects at a steep slope at one end of the cutting edge 1 and then intersects while relaxing the slope until it reaches the other end. Therefore, the same effect can be obtained as when the leading edge of the insert has a gradient.
図１４は請求項１の切断機構部が薄い柔軟な紙や布、フィルムあるいは粘着テープなどの切断具に採り入れられた実施例１２である。これは奥障壁面３が切刃１の側に傾斜した平面で、切刃１の刃先が前障壁面４を含む平面と奥障壁面３とで形成する隅角部に突き出され、挿入子２の前縁が一定の勾配を持つ形状で、かつ保持子５と挿入子２が一体に形成されたタイプの切断機構である。この例の切断具本体３５はテープロール３１の円周上に廻動自在に取り付けられており、その切断機構部は、切刃１、奥障壁面３、前障壁面４および前障壁面アーム部１１からなる切刃ブロック６、挿入子２および保持子５で構成されている。切刃ブロック６は前障壁回転軸１７を介して切断具本体３５に回転自在に結合され、挿入子２と保持子５は切断具本体と一体に形成されている。この実施例の切断機構部での切断操作は、非粘着性の被切断物の場合は、被切断物必要長さ繰り出した後、保持子５と挿入子２上に載せた状態で、切刃ブロックを挿入子２側に押し当てる。被切断物は保持子５と前障壁面４で挟まれた部分だけで保持され、他の部分はフリーな状態であり被切断物は切刃１の先端を通り、切刃１と挿入子２の間を通り、挿入子２の前縁で折り返し、挿入子２と奥障壁面３の間を通って外に出ている。被切断物の外に出ている端を引張ると被切断物は挿入子２の前縁の形状に沿って曲げられ切刃の一点で接触し、そこに応力が集中し切断の起点が生じ被切断物が引き裂かれて切断される。被切断物が粘着テープの場合は、粘着テープを必要長さだけ繰り出した後、図の円内に示すように保持子５と挿入子２とに橋掛けるように粘着させて、切刃ブロックを挿入子２に押し当てていく。まず挿入子２の一番高い部分に粘着した粘着テープの一点に切刃１が当たり切断の起点が生じる。更に切刃ブロックを押し当てていくに従って亀裂は他端まで進行し、切断が完了する。 FIG. 14 shows an embodiment 12 in which the cutting mechanism of claim 1 is incorporated in a cutting tool such as thin flexible paper, cloth, film or adhesive tape. This is a flat surface in which the back barrier surface 3 is inclined toward the cutting edge 1, and the cutting edge of the cutting blade 1 protrudes into a corner formed by the flat surface including the front barrier surface 4 and the back barrier surface 3. This is a type of cutting mechanism in which the front edge has a shape with a certain gradient, and the retainer 5 and the insert 2 are integrally formed. The cutting tool main body 35 of this example is rotatably mounted on the circumference of the tape roll 31, and the cutting mechanism section includes the cutting blade 1, the back barrier surface 3, the front barrier surface 4, and the front barrier surface arm portion. 11 includes a cutting blade block 6, an inserter 2, and a holder 5. The cutting blade block 6 is rotatably coupled to the cutting tool main body 35 via the front barrier rotating shaft 17, and the inserter 2 and the holder 5 are formed integrally with the cutting tool main body. In the case of a non-adhesive object to be cut, the cutting operation in the cutting mechanism part of this embodiment is carried out after the required length of the object to be cut is extended and then placed on the holder 5 and the insert 2. Press the block against the inserter 2 side. The object to be cut is held only by the portion sandwiched between the retainer 5 and the front barrier surface 4, and the other part is in a free state. The object to be cut passes through the tip of the cutting blade 1, and the cutting blade 1 and the insert 2 Between the insert 2 and the back barrier surface 3 and go outside. When the end of the object to be cut is pulled, the object to be cut is bent along the shape of the front edge of the insert 2 and comes into contact with one point of the cutting edge. The cut material is torn and cut. When the object to be cut is an adhesive tape, the adhesive tape is fed out by a necessary length, and then adhered to the retainer 5 and the inserter 2 as shown in a circle in the figure, and the cutting blade block is attached. Press against the insert 2. First, the cutting blade 1 hits one point of the adhesive tape adhered to the highest portion of the insert 2, and the starting point of cutting occurs. As the cutting blade block is further pressed, the crack progresses to the other end, and the cutting is completed.
図１５は請求項２の切断機構部が切断具に採り入れられた実施例１３である。これは奥障壁面３が切刃１の側に傾斜した平面で、図から判り難いが前障壁面４を含む平面と奥障壁面３とで形成する隅角部に突き出された切刃１の刃先の部分が一定の勾配を持った形状であるタイプの切断機構部である。この例の切断具本体３５はテープロール３１の円周上に廻動自在に取り付けられており、その切断機構部は切刃１、奥障壁面３、前障壁面４および前障壁面アーム部１１からなる切刃ブロック６、挿入子２および保持子５で構成されている。切刃ブロック６は前障壁回転軸１７を介して切断具本体３５に回転自在に結合されている。挿入子２と保持子５は切刃１が挿入できる間隔をあけて切断具本体３５に一体に形成されている。この実施例の切断機構部を有する切断具の切断操作は、非粘着性の被切断物の場合は、必要長さ繰り出した被切断物を保持子５と挿入子２上に載せた状態で、切刃ブロック６を挿入子２側に押し当てる。被切断物は保持子５と前障壁面４で挟まれた部分だけで保持され、他の部分はフリーな状態であり被切断物は切刃１の先端を通り、切刃１と挿入子２の間を通り、挿入子２の前縁で折り返し、挿入子２と奥障壁面３の間を通って外に出ている。被切断物の外に出ている端を引張ると切刃１は勾配を持っているので被切断物は勾配の一番高い側の切刃の一点で接触し、そこに応力が集中し亀裂が生じる。このようにして被切断物を引張ると亀裂が他端まで伝播し切断される。被切断物が粘着テープの場合は、粘着テープを必要長さだけ繰り出した後、保持子５と保持子５に面一に一体形成されている挿入子２の前縁とに橋掛けるように粘着させて、切刃ブロックを挿入子２に押し当てる。切刃１は勾配を持っているので、切刃１の勾配の高い側で粘着テープの端と切刃１が一点で接触し切断の起点となる亀裂が生じる。更に切刃ブロックを押し当てていくに従って亀裂は他端まで伝播し切断が完了する。 FIG. 15 shows a thirteenth embodiment in which the cutting mechanism of claim 2 is incorporated in a cutting tool. This is a flat surface in which the back barrier surface 3 is inclined toward the cutting edge 1. This is a cutting mechanism portion of a type in which the blade tip portion has a shape having a certain gradient. The cutting tool main body 35 of this example is attached to the circumference of the tape roll 31 so as to be freely rotatable, and the cutting mechanism part thereof is the cutting blade 1, the back barrier surface 3, the front barrier surface 4, and the front barrier surface arm part 11. It comprises a cutting blade block 6, an inserter 2 and a holder 5. The cutting blade block 6 is rotatably coupled to the cutting tool main body 35 via the front barrier rotating shaft 17. The inserter 2 and the holder 5 are formed integrally with the cutting tool main body 35 with an interval at which the cutting blade 1 can be inserted. In the cutting operation of the cutting tool having the cutting mechanism portion of this embodiment, in the case of a non-adhesive workpiece, the workpiece to be cut out for the necessary length is placed on the retainer 5 and the insert 2, The cutting blade block 6 is pressed against the inserter 2 side. The object to be cut is held only by the portion sandwiched between the retainer 5 and the front barrier surface 4, and the other part is in a free state. The object to be cut passes through the tip of the cutting blade 1, and the cutting blade 1 and the insert 2 Between the insert 2 and the back barrier surface 3 and go outside. When the edge that is outside the workpiece is pulled, the cutting blade 1 has a gradient, so the workpiece contacts at one point of the cutting edge with the highest gradient, stress concentrates there, and cracks occur. Arise. When the workpiece is pulled in this manner, the crack propagates to the other end and is cut. When the object to be cut is an adhesive tape, the adhesive tape is fed out by a necessary length, and then is adhered so as to be bridged between the retainer 5 and the front edge of the insert 2 formed integrally with the retainer 5. Then, the cutting blade block is pressed against the inserter 2. Since the cutting blade 1 has a gradient, the edge of the adhesive tape and the cutting blade 1 come into contact at a single point on the higher gradient side of the cutting blade 1 and a crack is generated that serves as a starting point for cutting. As the cutting blade block is further pressed, the crack propagates to the other end and the cutting is completed.
図１６は請求項２の切断機構部が切断具に採り入れられた実施例14である。これは奥障壁面３が切刃１の側に傾斜した曲面で、図から判り難いが前障壁面４を含む平面と奥障壁面３とで形成する隅角部に突き出された切刃１の刃先の部分の形状が図の奥の方において急勾配でその後勾配を緩めながら手前に至る形状をしたタイプの切断機構部である。この例の切断具本体３５はテープロール３１の円周上に廻動自在に取り付けられており、その切断機構部は切刃１、奥障壁面３、前障壁面４および前障壁アーム部１１からなる切刃ブロック６、挿入子２および保持子５で構成されている。切刃ブロック６は切刃ブロック回転軸１２を介して前障壁面アーム部１１に結合され、前障壁面アーム部１１は前障壁回転軸１７を介して切断具本体３５と回転自在に結合されている。本例は、非粘着性の被切断物であっても保持子５と前障壁面アーム部１１とで被切断物を保持できるので非粘着性の被切断物にも適している。また、挿入子２の前縁と保持子５が面一に一体に形成されているので粘着テープの切断にも適しており、粘着性・非粘着性いずれの被切断物にも適した切断機構部となっている。 FIG. 16 shows a fourteenth embodiment in which the cutting mechanism of claim 2 is incorporated into a cutting tool. This is a curved surface in which the back barrier surface 3 is inclined toward the cutting edge 1, and it is difficult to understand from the figure, but the cutting edge 1 protruded from the corner formed by the plane including the front barrier surface 4 and the back barrier surface 3. This is a cutting mechanism of a type in which the shape of the cutting edge portion is steep in the back of the figure, and the shape reaches the front while relaxing the slope thereafter. The cutting tool main body 35 of this example is rotatably mounted on the circumference of the tape roll 31, and the cutting mechanism portion is formed from the cutting blade 1, the back barrier surface 3, the front barrier surface 4, and the front barrier arm portion 11. The cutting blade block 6, the inserter 2, and the holder 5 are configured. The cutting blade block 6 is coupled to the front barrier surface arm portion 11 via the cutting blade block rotating shaft 12, and the front barrier surface arm portion 11 is rotatably coupled to the cutting tool body 35 via the front barrier rotating shaft 17. Yes. This example is suitable for a non-adhesive object because the retainer 5 and the front barrier surface arm 11 can hold the object to be cut even if it is a non-adhesive object. In addition, since the front edge of the insert 2 and the retainer 5 are integrally formed on the same plane, it is suitable for cutting adhesive tapes, and it is suitable for both adhesive and non-adhesive objects to be cut. Has become a department.
図１７は請求項２に係わる切断機構部が粘着テープの切断具に採り入れられた実施例15である。これは奥障壁面３が切刃１の側に傾斜した平面で、図から判り難いが前障壁面４を含む平面と奥障壁面３とで形成する隅角部に突き出された切刃１の刃先の部分が一定の勾配を持った形状をしたタイプの切断機構部である。この例の切断具本体３５はテープロール・ホルダーも兼ねており、その切断機構部は切刃１、奥障壁面３、前障壁面４および前障壁面アーム部１１からなる切刃ブロック１１、挿入子２、および保持子５で構成されている。切刃ブロック６は前障壁回転軸１７を介して回転自在に切断具本体３５に結合され、挿入子２の前縁と保持子５の面が面一に形成され保持子のアーム部８を通じて同じく前障壁回転軸１７を介して回転自在に切断具本体に結合されている。採り入れられている切断具本体３５が異なっても、切断機構部としては図１５の実施例１３と同様である。 FIG. 17 shows a fifteenth embodiment in which the cutting mechanism according to claim 2 is incorporated in a cutting tool for adhesive tape. This is a plane in which the back barrier surface 3 is inclined toward the cutting edge 1, and it is difficult to understand from the figure, but the cutting edge 1 protruded from the corner formed by the plane including the front barrier surface 4 and the back barrier surface 3. This is a cutting mechanism portion of a type in which the blade edge portion has a shape with a certain gradient. The cutting tool main body 35 of this example also serves as a tape roll holder, and the cutting mechanism portion thereof is a cutting blade block 11 including a cutting blade 1, a back barrier surface 3, a front barrier surface 4, and a front barrier surface arm portion 11. A child 2 and a holder 5 are included. The cutting blade block 6 is rotatably coupled to the cutting tool body 35 via the front barrier rotating shaft 17, and the front edge of the insert 2 and the surface of the retainer 5 are formed flush with each other through the arm portion 8 of the retainer. It is connected to the cutting tool main body through the front barrier rotating shaft 17 so as to be rotatable. Even if the adopted cutting tool main body 35 is different, the cutting mechanism is the same as in the thirteenth embodiment of FIG.
図１８は請求項2に係わる切断機構部が粘着テープの切断具に採り入れられた実施例１６である。これは奥障壁面３が切刃１の側に傾斜した平面で、前障壁面４と奥障壁面３とが形成する隅角部に突き出した切刃１の刃先の部分が一定の勾配を持った形状をしたタイプの切断機構部である。この例の切断具本体３５はテープロール・ホルダーも兼ねており、その切断機構部は切刃１、挿入子２、奥障壁面３、前障壁面４および保持子５で構成されている。奥障壁面３、切刃１および前障壁面４は切断具本体３５と一体に形成されている。挿入子２と保持子５とは切刃１が挿入できる間隔をあけて一体に形成され、保持子５は保持子回転軸１４を介して保持子のハンドル部７とともに切断具本体３５に結合されている。また、挿入子２の前縁と保持子５とは面一に形成されている。 FIG. 18 shows a sixteenth embodiment in which the cutting mechanism according to claim 2 is incorporated in a cutting tool for adhesive tape. This is a flat surface in which the back barrier surface 3 is inclined toward the cutting edge 1, and the cutting edge portion of the cutting blade 1 protruding at the corner formed by the front barrier surface 4 and the back barrier surface 3 has a certain gradient. This is a cutting mechanism portion of a type having a different shape. The cutting tool main body 35 of this example also serves as a tape roll holder, and the cutting mechanism portion includes a cutting blade 1, an inserter 2, a back barrier surface 3, a front barrier surface 4, and a holder 5. The back barrier surface 3, the cutting edge 1 and the front barrier surface 4 are formed integrally with the cutting tool main body 35. The inserter 2 and the retainer 5 are integrally formed with a space at which the cutting blade 1 can be inserted, and the retainer 5 is coupled to the cutting tool main body 35 together with the handle portion 7 of the retainer via the retainer rotating shaft 14. ing. Further, the front edge of the insert 2 and the retainer 5 are formed flush with each other.
実施例は粘着テープカッターへの適用について例示したが、本発明の切断具は前障壁４とテープ留１２で被切断物を挟んで確実に保持することができるので、粘着性のない薄物の紙・布その他アルミホイールやラップ類のカッターにも応用できるものである。 In the embodiment, the application to an adhesive tape cutter is illustrated. However, since the cutting tool of the present invention can hold the object to be cut between the front barrier 4 and the tape clasp 12 with certainty, it is a thin paper without stickiness.・ Applicable to cloth and other aluminum wheels and wrap cutters.
１ 切刃
２ 挿入子
３ 奥障壁面
４ 前障壁面
５ 保持子
６ 切刃ブロック
７ 保持子（保持子のハンドル部）
８ 保持子（保持子のアーム部）
１１ 前障壁面（前障壁面アーム部）
１２ 切刃ブロック回転軸
１４ 保持子回転軸
１５ 支点
１６ 挿入子回転軸
１７ 前障壁回転軸
１８ 前障壁側保持子
１９ 挿入子（挿入子のアーム部）
２０ 挿入子（挿入子の頭部）
２３ アームストッパー
３０ テープ
３１ テープロール
３２ 指穴
３３ テープやリボンなどの取り入れ口
３５ 切断具本体
DESCRIPTION OF SYMBOLS 1 Cutting blade 2 Insert 3 Back barrier surface 4 Front barrier surface 5 Retainer 6 Cutting blade block 7 Retainer (handle portion of retainer)
8 Retainer (arm portion of retainer)
11 Front barrier surface (front barrier surface arm)
12 Cutting Edge Block Rotating Shaft 14 Retainer Rotating Shaft 15 Supporting Point 16 Insertor Rotating Shaft 17 Front Barrier Rotating Shaft 18 Front Barrier Side Retainer 19 Insertor (Insert Arm)
20 Insertor (Head of the inserter)
23 Arm stopper 30 Tape 31 Tape roll 32 Finger hole 33 Intake port 35 such as tape or ribbon Cutting tool body
Claims (2)
配置されること、および切刃１の刃先が前障壁面４を含む平面と奥障壁面３とで形成される隅角部に突き出すように配置され、かつ隅角部に突き出された切刃１の刃先の部分の形状が一方の端において急勾配でその後勾配を緩めながら他端に至るような形状もしくは一定の勾配を持った形状、もしくはＶ字型、逆Ｖ字型もしくは鋸刃状の形状であること、さらに被切断物を保持するための保持子５と挿入子２の前縁とが切刃１を挿入できるだけの間隔をあけて一体に形成されていることを特徴とする切断機構部。 A cutting mechanism portion of a cutting tool for a flexible thin object, wherein the cutting blade 1 has a planar shape inclined to the cutting blade 1 side at a position where the inserter 2 can be inserted on one side of the cutting blade 1 or A curved rear barrier surface 3 is arranged, and the other side of the cutting blade 1 is close to the cutting blade 1 and the front barrier surface 4 is
The cutting edge 1 that is disposed and that the cutting edge of the cutting edge 1 is protruded to a corner formed by the plane including the front barrier surface 4 and the back barrier surface 3 and protrudes to the corner. The shape of the blade tip part is steep at one end and then the shape reaches the other end while relaxing the slope, or a shape with a constant gradient, or a V-shaped, inverted V-shaped or saw-tooth shaped Further, the holding mechanism 5 for holding the object to be cut and the front edge of the insert 2 are integrally formed with a space sufficient to insert the cutting blade 1. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007083144A JP2008238345A (en) | 2007-03-28 | 2007-03-28 | Cutting mechanism making safety and cutting property compatible in cutting tool for flexible and thin object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007083144A JP2008238345A (en) | 2007-03-28 | 2007-03-28 | Cutting mechanism making safety and cutting property compatible in cutting tool for flexible and thin object |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2008238345A true JP2008238345A (en) | 2008-10-09 |
Family
ID=39910285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007083144A Pending JP2008238345A (en) | 2007-03-28 | 2007-03-28 | Cutting mechanism making safety and cutting property compatible in cutting tool for flexible and thin object |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2008238345A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2166329A2 (en) | 2008-09-17 | 2010-03-24 | Fuji Burudon MFG, Co., Ltd. | Bourdon tube pressure gauge |
-
2007
- 2007-03-28 JP JP2007083144A patent/JP2008238345A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2166329A2 (en) | 2008-09-17 | 2010-03-24 | Fuji Burudon MFG, Co., Ltd. | Bourdon tube pressure gauge |
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