JP4477693B1 - Scissors - Google Patents

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JP4477693B1
JP4477693B1 JP2009191011A JP2009191011A JP4477693B1 JP 4477693 B1 JP4477693 B1 JP 4477693B1 JP 2009191011 A JP2009191011 A JP 2009191011A JP 2009191011 A JP2009191011 A JP 2009191011A JP 4477693 B1 JP4477693 B1 JP 4477693B1
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blade
intersection
elastic
scissors
finger ring
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JP2011041648A (en
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実樹 竹鼻
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株式会社 菊星
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Abstract

【課題】ハサミの使用時に刃部に発生する衝撃や振動が軽減され、これら衝撃や振動がハサミを握る使用者の手に伝わりにくいハサミを提供する。
【解決手段】2つの刃体2a、2bの少なくともいずれか1つに設けられ交点3と指環部5a、5bとの間を介在する弾性体11を有する弾性部6を備えるハサミ1。
【選択図】図1
An object of the present invention is to provide a scissor in which impacts and vibrations generated in a blade portion when using scissors are reduced and these impacts and vibrations are not easily transmitted to a user's hand holding the scissors.
A scissor 1 is provided with an elastic portion 6 having an elastic body 11 provided on at least one of two blade bodies 2a, 2b and interposed between an intersection 3 and finger ring portions 5a, 5b.
[Selection] Figure 1

Description

本発明は、文房具としての用途から、理美容用や服の仕立てなどでの職業上の道具としての用途まで適用できるハサミに関する。   The present invention relates to scissors applicable from a use as a stationery to a use as a professional tool in hairdressing and beauty or tailoring clothes.

ハサミは、文房具の1つであり、理美容や服の仕立てなどの特定の職業では欠くことのできない重要な道具でもあるため、その用途に応じて様々な形状や機能を備えたものが存在する。   Scissors are one of the stationery and are important tools that are indispensable for specific occupations such as hairdressing and tailoring of clothes, so there are those with various shapes and functions depending on their use. .

例えば理美容師など、連日長時間にわたりハサミを使用する人たちには、良く切れることはもちろんであるが、理美容師の職業病として知られる手の指の腱鞘炎を防止できるハサミや、腱鞘炎又は負傷した手で扱ってもハサミを握る手に痛みを感じさせないハサミが求められている。   For those who use scissors for a long time every day, such as a hairdresser, for example, it will cut well, but scissors, tendonitis or injuries that can prevent tendonitis of the fingers of the hand, known as a barber's occupational disease There is a need for scissors that do not cause pain in the hands that hold the scissors even when they are handled with the hand.

ハサミを長時間使用する人たちの手や腕に腱鞘炎が生じる原因には、ハサミの開閉時にハサミを握る手に伝わる衝撃や振動が考えられている。そこで、ハサミの開閉時においてハサミを握る手に伝わる衝撃や振動を緩和するため、ハサミを握るときに手の指を通す指環部の形態に工夫が施されているハサミ(例えば特許文献1を参照)や、次に述べる特許文献2、3に記載のハサミなどが開発されている。   The cause of tendonitis in the hands and arms of people who use scissors for a long time is thought to be shock and vibration transmitted to the hand holding the scissors when the scissors are opened and closed. Therefore, in order to alleviate the shock and vibration transmitted to the hand holding the scissors when opening and closing the scissors, the scissors have been devised in the form of the finger ring portion through which the fingers of the hand are passed when the scissors are gripped (see, for example, Patent Document 1) ) And scissors described in Patent Documents 2 and 3 described below have been developed.

特許文献2には、対象物を切断する刃部と指環部との間の柄部において、制振合金が介在しているハサミが開示されている。このハサミでは、対象物を切断するときに刃部に発生する振動は、柄部の制振合金によって減衰されるため、指環部を握る使用者の手まで伝わりにくい。   Patent Document 2 discloses scissors in which a damping alloy is interposed in a handle portion between a blade portion and a finger ring portion for cutting an object. In this scissors, vibration generated in the blade portion when cutting the object is attenuated by the damping alloy of the handle portion, so that it is difficult to be transmitted to the user's hand holding the finger ring portion.

特許文献3には、柄部に軟質ウレタンやシリコンゴム等の粘弾性体を埋め込んだハサミが開示されている。このハサミでは、ハサミの開閉により刃部で発生した衝撃や振動が柄部の粘弾性体によって吸収されるため、刃部で発生した衝撃や振動が指環部を握る使用者の手まで伝わりにくくなっている。   Patent Document 3 discloses a scissor in which a viscoelastic body such as soft urethane or silicon rubber is embedded in a handle. In this scissors, the impact and vibration generated at the blade by the opening and closing of the scissors are absorbed by the viscoelastic body of the handle, so the impact and vibration generated at the blade are not easily transmitted to the user's hand holding the finger ring. ing.

特開2006−175123号公報JP 2006-175123 A 特開2008−5896号公報JP 2008-5896 A 国際公開第2006/022368号パンフレットInternational Publication No. 2006/022368 Pamphlet

しかしながら、特許文献2に開示されているハサミでは、振動の減衰が十分になされているとはいえない。さらに、このハサミでは、用途に応じて制振合金の組成を変えて制振合金の重量や硬さなどを調整する必要性が想定されるため大量生産に適さず実用で問題がある。   However, the scissors disclosed in Patent Document 2 cannot be said to be sufficiently damped. Furthermore, this scissor is not suitable for mass production and has a problem in practical use because it is assumed that it is necessary to adjust the weight or hardness of the damping alloy by changing the composition of the damping alloy according to the application.

特許文献3に開示されているハサミには、製造時において柄部に粘弾性体をはめ込むという煩雑な作業が要求される。さらに、このハサミでは、刃先から指環部に到るまで1個又は複数個の金属製の部材が連続する実施形態も存在する。このような実施形態では、刃先側で発生した衝撃や振動が金属製の部材を伝わって指環部まで到達してしまう。   The scissors disclosed in Patent Document 3 require a complicated work of fitting a viscoelastic body into the handle during manufacture. Further, in the scissors, there is an embodiment in which one or a plurality of metal members are continuous from the blade edge to the finger ring portion. In such an embodiment, an impact or vibration generated on the blade edge side is transmitted to the metal member and reaches the finger ring portion.

さらに、特許文献1〜3に記載のものを含む従来のハサミでは、対象物を切断するときなど2つの刃体の刃先を閉じるときには、刃体の回転運動を制止させるために使用者の手に握られている指環部同士を衝突させている。したがって、従来のハサミでは、使用者の手に握られる指環部そのものが衝撃や振動の発生源にもなっている。   Furthermore, in the conventional scissors including those described in Patent Documents 1 to 3, when closing the blade tips of two blade bodies, such as when cutting an object, the user's hand is used to stop the rotational movement of the blade bodies. The finger ring portions that are being gripped collide with each other. Therefore, in the conventional scissors, the finger ring itself held by the user's hand is also a source of impact and vibration.

上記の問題に鑑みて、本発明の課題は、ハサミの開閉によってハサミに発生する衝撃や振動が軽減され、これら衝撃や振動がハサミを握る使用者の手に伝わりにくいハサミを提供することにある。   In view of the above problems, an object of the present invention is to provide a scissor in which the impact and vibration generated in the scissors are reduced by opening and closing the scissors, and these impacts and vibrations are not easily transmitted to the user's hand holding the scissors. .

上記課題を解決するため、本発明者は、鋭意検討した結果、本発明を完成するに至った。すなわち、本発明によれば、以下に示すハサミが提供される。   In order to solve the above problems, the inventor has intensively studied, and as a result, has completed the present invention. That is, according to the present invention, the following scissors are provided.

[1] 2つの刃体が交点で交差して前記交点を中心に回転可能に連結しているハサミであって、前記2つの刃体は、刃先及び刃を有する刃部と、前記交点に対して前記刃先とは反対側にある指環部とを備え、前記2つの刃体の少なくともいずれか1つに設けられ、相手方の前記刃体の前記刃先を閉じる方向の回転の軌道上に突出し、前記相手方の前記刃体に接触して前記2つの刃体の前記刃先を閉じる方向の回転を制止させる回転制止部を有し、前記2つの刃体の少なくともいずれか1つにおいて、前記回転制止部を有する前記刃体においては前記回転制止部よりも前記指環部の側で、前記相手方の前記刃体においては前記回転制止部と接触する部分よりも前記指環部の側で、前記交点と前記指環部との間に弾性部が設けられ、前記弾性部が、前記弾性部よりも前記交点の側にある前記刃体の部材と前記弾性部よりも前記指環部の側にある前記刃体の部材とが直接接触しないように前記交点と前記指環部との間介在する弾性体を有し、前記弾性部が設けられている前記刃体において、前記弾性部よりも前記交点の側にある前記刃体の部材と前記弾性部よりも前記指環部の側にある前記刃体の部材とが前記弾性体を介在させて嵌合しているハサミ。 [1] A pair of scissors in which two blades intersect at an intersection and are rotatably connected around the intersection, the two blades being a blade portion having a blade edge and a blade, and the intersection A finger ring portion on the opposite side of the blade edge, provided on at least one of the two blade bodies, protruding on a rotation trajectory in a direction to close the blade edge of the counterpart blade body, A rotation stopping portion that stops the rotation of the two blade bodies in the direction of closing the blade edges by contacting the other blade body, and at least one of the two blade bodies includes the rotation stopping portion; In the blade body, the intersection and the finger ring portion are closer to the finger ring portion than the rotation restraining portion, and in the counterpart blade body is closer to the finger ring portion than the portion in contact with the rotation restraining portion. An elastic part is provided between the elastic part and the elastic part The crossing point and the finger ring portion are arranged so that the blade member on the side of the intersection with respect to the elastic portion and the blade member on the side of the finger ring with respect to the elastic portion are not in direct contact with each other. an elastic body interposed between, in the blade body in which the elastic portion is provided, the side of the finger ring portion than member and the resilient portion of the blade body than said elastic portion on the side of the intersection The scissors in which the member of the blade body is fitted with the elastic body interposed therebetween .

[2] 前記弾性部が設けられている前記刃体において、前記刃部と前記指環部とが前記弾性体を介在させて嵌合している前記[1]に記載のハサミ。 [2] The scissors according to [1], wherein in the blade body provided with the elastic portion, the blade portion and the finger ring portion are fitted via the elastic body.

] 前記回転制止部は、前記刃体の前記刃部において前記刃先を閉じたときに前記相手方の前記刃体の前記刃部に接する刃裏における前記交点の近傍部分より突出し、前記相手方の前記刃体は、前記刃部の縁において前記交点を中心として前記回転制止部と同一円周上の部分に切欠き部を有し、前記切欠き部が、前記回転制止部を挿入させて前記回転制止部と接触し、前記2つの刃体の前記刃先を閉じる方向の前記回転を制止させる前記[1]又は[2]に記載のハサミ。 [ 3 ] The rotation restraining portion protrudes from the vicinity of the intersection point on the blade back contacting the blade portion of the counterpart blade body when the blade edge is closed in the blade portion of the blade body, The blade body has a notch at a portion on the same circumference as the rotation restraining portion around the intersection at the edge of the blade portion, and the notch inserts the rotation restraining portion to insert the rotation restraining portion. The scissors according to [1] or [2] , wherein the scissors are in contact with a rotation restraining portion and restrain the rotation of the two blade bodies in the direction of closing the cutting edges.

] 前記回転制止部は、前記交点より前記刃先の側でかつ前記交点から前記弾性部までの距離よりも前記交点からの距離が小さくなるように設けられている前記[1]〜[3]のいずれかに記載のハサミ。 [4] the rotation restraining portion, said provided such that the distance from the intersection is smaller than the distance from the side in and the intersection of the than the intersection edge until the elastic portion [1] - [3 ] The scissors according to any one of

] 前記回転制止部から前記交点までの距離が、前記交点から前記弾性部までの距離の20分の1以下である前記[4]に記載のハサミ。 [ 5 ] The scissors according to [4] , wherein a distance from the rotation stopping portion to the intersection is 1/20 or less of a distance from the intersection to the elastic portion.

本発明のハサミは、ハサミの開閉によってハサミに発生する衝撃や振動が軽減され、これら衝撃や振動がハサミを握る使用者の手に伝わりにくい。   The scissors of the present invention reduce the impact and vibration generated in the scissors by opening and closing the scissors, and these impacts and vibrations are not easily transmitted to the user's hand holding the scissors.

本発明のハサミの一実施形態の正面図である。It is a front view of one embodiment of the scissors of the present invention. 図1中のA−A’断面図である。It is A-A 'sectional drawing in FIG. 図1中のB−B’断面図である。It is B-B 'sectional drawing in FIG. 図1に示すハサミを交点近傍から指環部にかけて拡大した正面図である。It is the front view which expanded the scissors shown in FIG. 1 from the intersection vicinity to a finger ring part. 図4に示す状態から刃先が閉じる方向に刃体を回転させて回転制止部によって刃体の回転が制止された様子を表す本発明のハサミの拡大正面図である。It is an enlarged front view of the scissors of this invention showing a mode that the blade body was rotated from the state shown in FIG. 4 in the direction which a blade edge | tip closes, and rotation of the blade body was stopped by the rotation stop part. 図4中のA−A’断面図である。It is A-A 'sectional drawing in FIG. 図5中のB−B’断面図である。FIG. 6 is a B-B ′ sectional view in FIG. 5. 指環部の側の交点の近傍に回転制止部及び切欠き部が設けられている本発明のハサミの拡大正面図である。It is an enlarged front view of the scissors of this invention in which the rotation stop part and the notch part are provided in the vicinity of the intersection on the finger ring part side. 図8に示す状態から刃先が閉じる方向に刃体を回転させて回転制止部によって刃体の回転が制止された様子を表す本発明のハサミの拡大正面図である。It is an enlarged front view of the scissors of this invention showing a mode that the blade body was rotated from the state shown in FIG. 8 in the direction in which the blade edge is closed, and the rotation of the blade body was restrained by the rotation restraining part.

以下、図面を参照しつつ本発明の実施の形態について説明する。本発明は、以下の実施形態に限定されるものではなく、本発明の範囲を逸脱しない限りにおいて、変更、修正、改良を加え得るものである。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments, and changes, modifications, and improvements can be added without departing from the scope of the present invention.

1.本発明のハサミの概要:
図1は、本発明の技術的範囲に属するハサミ1の正面図である。本発明のハサミ1は、2つの刃体2a、2bが交点3で交差し、刃体2a、2bはそれぞれ交点3を中心に回転可能に連結している。図1に示す実施形態のハサミ1では、刃体2a、2bの交点3において刃体2a、2bを共に貫通する穴が設けられ、この穴を刃体2a、2bを共貫通している状態にして刃体2a、2bを貫くようにネジ35を通すことにより、2つの刃体2a、2bが連結している。
1. Summary of scissors of the present invention:
FIG. 1 is a front view of a scissor 1 belonging to the technical scope of the present invention. In the scissors 1 of the present invention, two blade bodies 2 a and 2 b intersect at an intersection point 3, and the blade bodies 2 a and 2 b are connected so as to be rotatable around the intersection point 3. In the scissors 1 of the embodiment shown in FIG. 1, a hole that penetrates both of the blade bodies 2a and 2b is provided at the intersection 3 of the blade bodies 2a and 2b, and this hole is made to penetrate the blade bodies 2a and 2b together. The two blade bodies 2a and 2b are connected by passing a screw 35 so as to penetrate the blade bodies 2a and 2b.

刃体2a、2bは、それぞれ刃部4a、4bと指環部5a、5bとを備えている。刃部4a、4bは、それぞれ刃先32及び刃31a、31bを有する。また、指環部5a、5bは、刃体2a、2bにおいて交点3に対して刃先32とは反対側にある。   The blade bodies 2a and 2b include blade portions 4a and 4b and finger ring portions 5a and 5b, respectively. The blade portions 4a and 4b have a blade edge 32 and blades 31a and 31b, respectively. Further, the finger ring portions 5a and 5b are on the side opposite to the blade edge 32 with respect to the intersection 3 in the blade bodies 2a and 2b.

本発明のハサミ1においても、2つの刃体2a、2bを回転させることによって刃先32及び対向する刃31a、31bを開閉させ、刃31a、31bの間に置かれた対象物を切断できる。指環部5a、5bを互いに近づける方向に刃体2a、2bを回転させれば刃先32が閉じ、指環部5a、5bを互いに離す方向に刃体2a、2bを回転させれば刃先32が開く。   Also in the scissors 1 of the present invention, by rotating the two blade bodies 2a and 2b, the blade tip 32 and the opposed blades 31a and 31b can be opened and closed, and the object placed between the blades 31a and 31b can be cut. If the blade bodies 2a, 2b are rotated in a direction in which the finger ring portions 5a, 5b are brought close to each other, the blade edge 32 is closed, and if the blade bodies 2a, 2b are rotated in a direction in which the finger ring portions 5a, 5b are separated from each other, the blade edge 32 is opened.

特に、本発明のハサミ1は、弾性部6を備えていることを特徴とし、刃先32の開閉時や対象物の切断時において刃体2a、2bに発生する衝撃や振動が指環部5a、5bを握る使用者の手に伝わりにくくなっている。以下、弾性部6について詳しく述べる。   In particular, the scissors 1 of the present invention are characterized by having an elastic portion 6, and impacts and vibrations generated in the blade bodies 2 a and 2 b when the blade tip 32 is opened and closed or when an object is cut are caused by the finger ring portions 5 a and 5 b. It is difficult to reach the user's hand. Hereinafter, the elastic part 6 will be described in detail.

2.弾性部:
本発明のハサミ1では、刃体2a、2bの少なくともいずれかに弾性部6が設けられている。なお、図1には、刃体2a、2b双方に弾性部6が設けられている実施形態を示す。刃体2aに弾性部6が設けられているときには、この弾性部6は、交点3と指環部5aとの間に存在する。また、刃体2bに弾性部6が設けられているときも、弾性部6と、交点3及び指環部5bとの関係は同様である。
2. Elastic part:
In the scissors 1 of the present invention, the elastic portion 6 is provided on at least one of the blade bodies 2a and 2b. FIG. 1 shows an embodiment in which elastic portions 6 are provided on both blade bodies 2a and 2b. When the elastic part 6 is provided in the blade body 2a, the elastic part 6 exists between the intersection 3 and the finger ring part 5a. Moreover, when the elastic part 6 is provided in the blade body 2b, the relationship between the elastic part 6 and the intersection 3 and the finger ring part 5b is the same.

刃体2a、2b双方に衝撃や振動が発生しうるため、弾性部6は、2つの刃体2a、2b共に設けられていることが好ましい。   Since an impact and vibration can occur in both the blade bodies 2a and 2b, it is preferable that the elastic portion 6 is provided in both of the two blade bodies 2a and 2b.

図2は図1中のA−A’断面図、図3は図1中のB−B’断面図であり、これらの図では、図1に示す実施形態のハサミ1での弾性部6における、刃部4bと指環部5bとの関係を表す。   2 is a cross-sectional view taken along the line AA ′ in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line BB ′ in FIG. 1. In these figures, the elastic portion 6 of the scissors 1 of the embodiment shown in FIG. Represents the relationship between the blade portion 4b and the finger ring portion 5b.

図2、3に示す刃体2bを参照し説明すると、弾性部6は、交点3と指環部5bとの間に介在する弾性体11を有する。   Referring to the blade body 2b shown in FIGS. 2 and 3, the elastic portion 6 has an elastic body 11 interposed between the intersection 3 and the finger ring portion 5b.

「弾性体11が交点3と指環部5a、5bとの間に介在する」とは、弾性部6よりも交点3の側にある刃体2a、2bの部材と、弾性部6よりも指環部5a、5bの側にある刃体2a、2bの部材とが、直接接触せず、弾性体11を介して連結している形態をいう。図2、3に示す実施形態でも、弾性体6よりも交点3の側にある部材である刃部4bと、弾性部6を挟んで交点3の反対側にある指環部5bとは直接接触していない。   “The elastic body 11 is interposed between the intersection 3 and the finger ring portions 5 a, 5 b” means that the members of the blade bodies 2 a, 2 b located closer to the intersection 3 than the elastic portion 6 and the finger ring portion than the elastic portion 6 The member of blade body 2a, 2b in the side of 5a, 5b says the form which is connected through the elastic body 11, without contacting directly. In the embodiment shown in FIGS. 2 and 3, the blade portion 4 b that is a member on the side of the intersection 3 relative to the elastic body 6 and the finger ring portion 5 b on the opposite side of the intersection 3 across the elastic portion 6 are in direct contact. Not.

また、図3の弾性部6の断面図に示す、弾性体11が露出している両側部のように、刃部4bの一部と指環部5bの一部との間に空間を設けて、刃部4bと指環部5bとが直接接触しない形態になっていてもよい。   Further, as shown in the cross-sectional view of the elastic part 6 in FIG. 3, a space is provided between a part of the blade part 4b and a part of the finger ring part 5b like both side parts where the elastic body 11 is exposed, The blade portion 4b and the finger ring portion 5b may not be in direct contact with each other.

弾性体11には、エポキシ樹脂、軟質ウレタン、シリコンゴムなど分子構造によって弾性を備える材質の部材を挙げることができる。   Examples of the elastic body 11 include a member made of a material having elasticity by a molecular structure such as epoxy resin, soft urethane, or silicon rubber.

図2、3に示す刃体2bを参照し述べると、弾性体11としてエポキシ樹脂、軟質ウレタン、シリコンゴムなど分子構造によって弾性を備える部材を用いる場合、弾性部6は、刃部4bと指環部5bとが弾性体11を介在させて嵌合している形態にすることが好ましい。   Referring to the blade body 2b shown in FIGS. 2 and 3, when the elastic body 11 is a member having elasticity such as an epoxy resin, soft urethane, or silicone rubber, the elastic portion 6 includes the blade portion 4b and the finger ring portion. 5b is preferably fitted with the elastic body 11 interposed therebetween.

図2、3に示す弾性部6では、刃部4bの端部に凹部、指環部5bの端部に凸部を設け、指環部5bの凸部の表面が上述のエポキシ樹脂や軟質ウレタン等からなる弾性体11によって被覆されている。さらに、この弾性体11によって被覆されている指環部5bの凸部をそのまま刃部4bの凹部に押圧し嵌合させている。これとは逆に、刃部4bの端部を凸部としてこれに弾性体11を被覆し、指環部5bの端部の凹部に押圧し嵌合させる実施形態でもよい。   In the elastic part 6 shown in FIGS. 2 and 3, a concave part is provided at the end part of the blade part 4b, and a convex part is provided at the end part of the finger ring part 5b, and the surface of the convex part of the finger ring part 5b is made of the above-mentioned epoxy resin or soft urethane. The elastic body 11 is covered. Furthermore, the convex part of the finger ring part 5b covered with the elastic body 11 is pressed and fitted into the concave part of the blade part 4b as it is. In contrast to this, an embodiment in which the end portion of the blade portion 4b is formed as a convex portion, the elastic body 11 is coated on the end portion, and pressed into the concave portion at the end portion of the finger ring portion 5b may be fitted.

以上で説明したような弾性部6を有する刃体2a、2bでは、弾性部6よりも刃先32側で発生した衝撃や振動が指環部5a、5bに伝わるには必ず1度は弾性体11を通過することになる。そのため、これら衝撃や振動が弾性体11によって吸収、減衰されて指環部5a、5bには伝わりにくい。   In the blade bodies 2a and 2b having the elastic portion 6 as described above, the elastic body 11 must be moved at least once in order for the shock and vibration generated on the blade edge 32 side to the elastic portion 6 to be transmitted to the finger ring portions 5a and 5b. Will pass. Therefore, these impacts and vibrations are absorbed and attenuated by the elastic body 11 and are not easily transmitted to the finger ring portions 5a and 5b.

本発明のハサミ1は、ここまでに述べた特徴を備えつつ、以下に述べる実施形態にすることも可能である。   The scissors 1 of the present invention can have the features described so far, and can also be in the embodiment described below.

3.回転制止部:
図1を参照し述べると、本発明のハサミ1では、2つの刃体2a、2bの少なくともいずれか1つに、以下に詳しく述べる回転制止部7が設けられていると好ましい。
3. Rotation stop:
Referring to FIG. 1, in the scissors 1 of the present invention, it is preferable that at least one of the two blade bodies 2a, 2b is provided with a rotation stop portion 7 described in detail below.

まず、回転制止部7の説明のために参照する図について述べる。図4は、図1に示すハサミ1の正面図を交点3の近傍から指環部5a、5bにかけて拡大した図である。図5は、図4に示す状態から刃先32を閉じる方向に刃体2a、2bを回転させていった状態を示す。図6は、図4中のA−A’断面図であり、図7は、図5中のB−B’断面図であり、これらの図は刃体2a、2bが刃先32を閉じる回転をした際の回転制止部7が設けられている刃体2aと相手方の刃体2bとの関係を表している。   First, a drawing referred to for explaining the rotation stopping portion 7 will be described. FIG. 4 is an enlarged view of the front view of the scissors 1 shown in FIG. 1 from the vicinity of the intersection 3 to the finger ring portions 5a and 5b. FIG. 5 shows a state in which the blade bodies 2a and 2b are rotated in the direction of closing the blade edge 32 from the state shown in FIG. 6 is a cross-sectional view taken along the line AA ′ in FIG. 4, and FIG. 7 is a cross-sectional view taken along the line BB ′ in FIG. 5, and these figures show the rotation of the blade bodies 2 a and 2 b closing the blade edge 32. The relationship between the blade body 2a provided with the rotation stopping portion 7 and the counterpart blade body 2b is shown.

図6に示す刃体2a、2bを参照し述べると、回転制止部7は、刃体2aにおいて、相手方の刃体2bの刃先を閉じる方向の回転の軌道30上に突出している。   Referring to the blade bodies 2a and 2b shown in FIG. 6, the rotation stopping portion 7 protrudes on the rotation track 30 in the direction in which the blade edge of the counterpart blade body 2b is closed in the blade body 2a.

そのため、図6に示す刃体2a、2bが刃先32を閉じる方向の回転を続けるとき、図7に示すように、刃体2aより突出している回転制止部7は、相手方の刃体2bに接触する。この接触により、2つの刃体2a、2bの刃先32を閉じる方向の回転が制止される。なお、回転制止部7の「突出」とは、上述の作用を発揮する限りその範疇に入り、例えば、刃体2aの一部分が相手方の刃体2bの回転の軌道30を遮るような形状を刃体2aが備えていれば、刃体2aから回転制止部7が突出しているという範疇に入る。   Therefore, when the blade bodies 2a and 2b shown in FIG. 6 continue to rotate in the direction in which the blade edge 32 is closed, as shown in FIG. 7, the rotation stop portion 7 protruding from the blade body 2a contacts the counterpart blade body 2b. To do. By this contact, the rotation in the direction of closing the blade edges 32 of the two blade bodies 2a and 2b is restrained. The “protrusion” of the rotation restricting portion 7 falls within the category as long as it exhibits the above-described action. For example, the blade 2a has a shape in which a part of the blade body 2a blocks the rotation path 30 of the other blade body 2b. If the body 2a is provided, it enters the category that the rotation stop portion 7 protrudes from the blade body 2a.

さらに、図5に示すように、回転制止部7と相手方の刃体2bが接触している状態のとき、指環部5aと指環部5bとの間の隙間gの幅が十分に確保されていると好ましい。この隙間gによって、刃先32を勢いよく開閉する場合であっても、指環部5aと指環部5bとの衝突が防がれ、指環部5a、5b自体が衝撃や振動の発生源にならなくなる。例えば、弾性部6の働きによって刃体2a、2bに若干しなりが生じる場合には、このような刃体2a、2bのしなりが生じてもなお指環部5aと指環部5bとが激しく衝突しないあるいは全く衝突しないように、指環部5aと指環部5bとの間の隙間gの幅を定めることが好ましい。   Further, as shown in FIG. 5, when the rotation stop portion 7 and the counterpart blade body 2b are in contact with each other, the width of the gap g between the finger ring portion 5a and the finger ring portion 5b is sufficiently secured. And preferred. Even when the blade edge 32 is opened and closed vigorously by the gap g, collision between the finger ring portion 5a and the finger ring portion 5b is prevented, and the finger ring portions 5a and 5b themselves do not become a source of impact or vibration. For example, when the blades 2a and 2b are slightly bent due to the action of the elastic portion 6, even if the blades 2a and 2b are bent, the finger ring portion 5a and the finger ring portion 5b still collide violently. It is preferable that the width of the gap g between the finger ring portion 5a and the finger ring portion 5b is determined so that it does not collide or does not collide at all.

図8は、本発明の技術的範囲に属するハサミ1の拡大正面図であり、この図に示すハサミ1では図4〜7とは異なる実施形態の回転制止部7を備えている。図9は、図8に示す状態から刃先32を閉じる方向の回転をしたハサミ1の拡大正面図である。図4と図8とを比較してわかるように、回転制止部7は、交点3より刃先32の側にあっても、指環部5a、5bの側にあってもよい。   FIG. 8 is an enlarged front view of the scissors 1 belonging to the technical scope of the present invention, and the scissors 1 shown in this figure includes a rotation restraining portion 7 of an embodiment different from those of FIGS. FIG. 9 is an enlarged front view of the scissors 1 rotated in the direction of closing the blade edge 32 from the state shown in FIG. As can be seen from a comparison between FIG. 4 and FIG. 8, the rotation restricting portion 7 may be closer to the cutting edge 32 than the intersection 3 or closer to the finger ring portions 5 a and 5 b.

3−1.弾性部と回転制止部との位置関係:
図1に示すハサミ1を一具体例として参照し以下に説明すると、回転制止部7を有する実施形態では、刃体2aに設けられている回転制止部7と相手方の刃体2bとの接触によって刃体2a、2bに生じる衝撃や振動を指環部5a、5bに伝わる前に吸収・減衰させるために、弾性部6と回転制止部との位置関係は、次に述べる第1〜3のルールに従う。
3-1. Positional relationship between elastic part and rotation stop part:
Referring to the scissors 1 shown in FIG. 1 as a specific example, in the following description, in the embodiment having the rotation restraining portion 7, the contact between the rotation restraining portion 7 provided on the blade body 2 a and the counterpart blade body 2 b. In order to absorb and attenuate the shock and vibration generated in the blades 2a and 2b before being transmitted to the finger ring portions 5a and 5b, the positional relationship between the elastic portion 6 and the rotation restraint portion follows the first to third rules described below. .

第1に、回転制止部7を有する刃体2aに弾性部6を備える場合には、弾性部6は、回転制止部7よりも指環部5aの側に設けられる。   First, when the blade body 2 a having the rotation stop portion 7 includes the elastic portion 6, the elastic portion 6 is provided closer to the finger ring portion 5 a than the rotation stop portion 7.

第2に、刃先32を閉じることによって回転制止部7と接触する、相手方の刃体2bに弾性部6を備える場合には、弾性部6は、回転制止部7と接触する部分よりも指環部5bの側に設けられる。   Secondly, when the other blade body 2 b that comes into contact with the rotation restraining portion 7 by closing the blade edge 32 includes the elastic portion 6, the elastic portion 6 has a finger ring portion rather than a portion that comes into contact with the rotation restraining portion 7. Provided on the 5b side.

第3に、ここでは図示しないが、2つの刃体2a、2b双方に回転制止部7が設けられている場合、それぞれの刃体2a、2bにおいて、弾性部6は、上記の第1のルール及び第2のルール双方に従う位置に設けられる。   Thirdly, although not shown here, when the rotation restraining portions 7 are provided on both of the two blade bodies 2a and 2b, the elastic portion 6 in each of the blade bodies 2a and 2b has the above-mentioned first rule. And a position that complies with both the second rule.

刃体2a、2bにおいて回転制止部7及びこれに接触する相手方の刃体2bの部分は衝撃や振動の発生源であるが、上述の第1〜3のルールに従う限り、弾性部6は、この発生源と指環部5a、5bとの間に配置されることになる。そのため、回転制止部7と相手方の刃体2bとの接触によって生じる衝撃や振動は、弾性部6によって減衰、吸収され、指環部5a、5bを握る使用者の手に伝わりにくくなる。   In the blade bodies 2a and 2b, the rotation restraining portion 7 and the portion of the counterpart blade body 2b in contact with the blade body 2b are sources of shock and vibration. However, as long as the above first to third rules are followed, the elastic portion 6 It is arranged between the generation source and the finger ring portions 5a and 5b. Therefore, the impact and vibration generated by the contact between the rotation stop portion 7 and the counterpart blade body 2b are attenuated and absorbed by the elastic portion 6, and are not easily transmitted to the user's hand holding the finger ring portions 5a and 5b.

回転制止部7を有する実施形態では、一方の刃体2aに設けられている回転制止部7と相手方の刃体2bとの接触によって刃体2a、2b双方に衝撃や振動が発生するため、2つの刃体2a、2b双方に弾性部6が設けられていると好ましい。   In the embodiment having the rotation restricting portion 7, since the rotation restricting portion 7 provided on one blade body 2 a and the counterpart blade body 2 b come into contact with each other, impact and vibration are generated in both the blade bodies 2 a and 2 b. It is preferable that the elastic portions 6 are provided on both the blade bodies 2a and 2b.

3−2.回転制止部より生じる衝撃・振動をテコの原理を利用して吸収・減衰する実施形態:
図4を参照し述べると、本発明のハサミ1において、回転制止部7を有する実施形態では、回転制止部7が交点3より刃先32の側にあり、かつ、交点3から弾性部6までの距離Ra、Rbに対して、回転制止部7から交点3までの距離rの方が小さいことが好ましい。
3-2. Embodiment that absorbs and attenuates shock and vibration generated from the rotation stop using the lever principle:
Referring to FIG. 4, in the scissors 1 of the present invention, in the embodiment having the rotation restricting portion 7, the rotation restricting portion 7 is closer to the blade edge 32 than the intersection point 3, and from the intersection point 3 to the elastic portion 6. It is preferable that the distance r from the rotation stop portion 7 to the intersection 3 is smaller than the distances Ra and Rb.

なお、この実施形態では、回転制止部7と相手方の刃体2bとの接触により刃体2a、2b双方に衝撃や振動が伝わることを考慮し、回転制止部7から交点までの距離rは、回転制止部7を備える刃体2aにおける交点3から弾性部6までの距離Ra、及び回転制止部7を受け止める相手方の刃体2bにおける交点3から弾性部6までの距離Rbいずれに対しても小さい。   In this embodiment, considering that the impact and vibration are transmitted to both the blade bodies 2a and 2b due to the contact between the rotation stop portion 7 and the counterpart blade body 2b, the distance r from the rotation stop portion 7 to the intersection is The distance Ra from the intersection point 3 to the elastic part 6 in the blade body 2a including the rotation stopping part 7 and the distance Rb from the intersection point 3 to the elastic part 6 in the other blade part 2b receiving the rotation stopping part 7 are small. .

この実施形態をテコの原理に当てはめて説明すると、刃部2a、2bの回転の中心である交点3が支点に相当し、回転制止部7及びこれに接触する相手方の刃体2bの部分が力点、弾性部6は作用点に相当する。よって、回転制止部7と相手方の刃体2bとの接触によって発生した衝撃や振動に対して、回転制止部7近傍でこれら衝撃や振動を吸収するのに要すると想定される力の大きさよりも、回転制止部7との間に交点3を挟みかつ交点3からの距離がより大きく保たれている弾性部6では、これら衝撃や振動をより小さい吸収力で抑えることができる。   When this embodiment is applied to the principle of leverage, the intersection 3 which is the center of rotation of the blades 2a and 2b corresponds to a fulcrum, and the rotation restraining part 7 and the part of the other blade 2b in contact with this are the power points. The elastic part 6 corresponds to an action point. Therefore, with respect to the impact and vibration generated by the contact between the rotation stop portion 7 and the counterpart blade body 2b, the magnitude of force assumed to be required to absorb the shock and vibration in the vicinity of the rotation stop portion 7 is larger. In the elastic part 6 with the intersection point 3 interposed between the rotation stop part 7 and the distance from the intersection point 3 being kept larger, these impacts and vibrations can be suppressed with a smaller absorption force.

このようなテコの原理を応用した衝撃や振動の吸収と減衰をより効果的にするため、回転制止部7から交点3までの距離rが、交点3から弾性部6までの距離Ra、Rbの20分の1以下であるとより好ましい。   In order to more effectively absorb and attenuate shocks and vibrations by applying such a lever principle, the distance r from the rotation stop portion 7 to the intersection point 3 is set to the distances Ra and Rb from the intersection point 3 to the elastic portion 6. It is more preferable that it is 1/20 or less.

4.切欠き部:
図4、6に示すように、本発明のハサミ1では、回転制止部7が刃裏38aにおける交点3の近傍部分より突出している場合、次に詳しく述べるように、相手方の刃体2bには刃部4bの縁に切欠き部21を設けると好ましい。なお、刃裏38aとは、刃先32を閉じていったときに、一方の刃体2aの刃部4aにおいて相手方の刃体2bの刃部4bに接する部分をいう。
4). Notch:
As shown in FIGS. 4 and 6, in the scissors 1 of the present invention, when the rotation restraining portion 7 protrudes from the vicinity of the intersection 3 on the blade back 38a, as shown in detail below, It is preferable to provide a notch 21 at the edge of the blade 4b. The blade back 38a refers to a portion of the blade portion 4a of one blade body 2a that contacts the blade portion 4b of the counterpart blade body 2b when the blade edge 32 is closed.

図4の状態から図5の状態に推移する刃体2a、2bの回転を考慮しつつ述べると、切欠き部21は、刃部4bの縁において、交点3を中心として回転制止部7と同一円周上の部分に設けられている。これによって、刃体2a、2bが刃先32を閉じる方向に回転していったとき、切欠き部21内に回転制止部7が挿入され、最終的には図5、7に示すように、切欠き部21の壁面と回転制止部7とが接触し、刃体2a、2bの刃先32を閉じる回転が制止される。   When considering the rotation of the blade bodies 2a and 2b transitioning from the state of FIG. 4 to the state of FIG. 5, the notch 21 is the same as the rotation restraint 7 around the intersection 3 at the edge of the blade 4b. It is provided in the part on the circumference. As a result, when the blades 2a, 2b are rotated in the direction to close the blade edge 32, the rotation stop portion 7 is inserted into the notch portion 21, and finally, as shown in FIGS. The wall surface of the notch portion 21 and the rotation restraining portion 7 come into contact with each other, and the rotation of closing the blade edges 32 of the blade bodies 2a and 2b is restrained.

図4に示す実施形態を例に述べると、回転制止部7が交点3より刃先32の側にある場合には、切欠き部21は、相手方の刃体2bにおいて、刃部4bの刃31b側の縁に設けられる。対して、図8に示す実施形態を例に述べると、回転制止部7が交点3より指環部5bの側にある場合には、切欠き部21は、相手方の刃体2bにおいて、峰33b側の縁に設けられる。   When the embodiment shown in FIG. 4 is described as an example, when the rotation stopping portion 7 is on the side of the blade edge 32 from the intersection 3, the notch portion 21 is located on the blade 31b side of the blade portion 4b in the counterpart blade body 2b. It is provided at the edge. On the other hand, when the embodiment shown in FIG. 8 is described as an example, when the rotation stop portion 7 is on the finger ring portion 5b side from the intersection 3, the notch portion 21 is on the ridge 33b side in the counterpart blade body 2b. It is provided at the edge.

このように切欠き部21が設けられている場合、一般に流通しているハサミのように刃部4a、4bの刃31a、31bから峰33a、33bまでの幅がほぼ同じの実施形態では、刃体2a、2bの刃先32が重なるときに、ちょうど刃部4aと刃部4bとが縁同士を一致させてきれいに重なり合うようにできる(図5、9参照)。   When the notch portion 21 is provided in this way, in the embodiment in which the widths from the blades 31a and 31b of the blade portions 4a and 4b to the peaks 33a and 33b are substantially the same as in the case of scissors that are generally distributed, the blade When the blade edges 32 of the bodies 2a and 2b overlap, the blade portion 4a and the blade portion 4b can be exactly overlapped with the edges aligned (see FIGS. 5 and 9).

なお、回転制止部7は、いわゆる動刃、静刃のいずれにあってもよく、それに応じて、切り欠き部21は、相手方の刃体に設けられていればよい。   In addition, the rotation stop part 7 may be either a so-called moving blade or a stationary blade, and the cutout part 21 should just be provided in the other party blade body according to it.

以上に述べた本発明のハサミ1では、衝撃や振動が指環部5a、5bに伝わらないため、長時間にわたり使用しても使用者の手に腱鞘炎が生じにくく、また腱鞘炎や傷などを負っている手で扱ってもハサミを握る手に痛みを生じにくい。   In the scissors 1 of the present invention described above, since impact and vibration are not transmitted to the finger ring portions 5a and 5b, tendonitis is unlikely to occur in the user's hand even when used for a long time, and tendonitis and wounds are incurred. Hands that hold scissors are less likely to hurt even if they are handled with existing hands.

本発明は、文房具としての用途から、理美容や服の仕立てなどでの職業上の道具としての用途まで適用できるハサミとして利用できる。   INDUSTRIAL APPLICABILITY The present invention can be used as a scissors applicable from a use as a stationery to a use as a professional tool in hairdressing and beauty tailoring or clothing tailoring.

1:ハサミ、2a:刃体、2b:刃体、3:交点、4a:刃部、4b:刃部、5a:指環部、5b:指環部、6:弾性部、7:回転制止部、11:弾性体、21:切欠き部、30:刃体の刃先を閉じる方向の回転の軌道、31a:刃、31b:刃、32:刃先、33a:峰、33b:峰、35:ネジ、38a:刃裏、38b:刃裏。 1: scissors, 2a: blade body, 2b: blade body, 3: intersection point, 4a: blade portion, 4b: blade portion, 5a: finger ring portion, 5b: finger ring portion, 6: elastic portion, 7: rotation stop portion, 11 : Elastic body, 21: notch, 30: rotation trajectory in the direction of closing the blade edge of the blade body, 31a: blade, 31b: blade, 32: blade edge, 33a: peak, 33b: peak, 35: screw, 38a: Blade back, 38b: Blade back.

Claims (5)

2つの刃体が交点で交差して前記交点を中心に回転可能に連結しているハサミであって、
前記2つの刃体は、刃先及び刃を有する刃部と、前記交点に対して前記刃先とは反対側にある指環部とを備え、
前記2つの刃体の少なくともいずれか1つに設けられ、相手方の前記刃体の前記刃先を閉じる方向の回転の軌道上に突出し、前記相手方の前記刃体に接触して前記2つの刃体の前記刃先を閉じる方向の回転を制止させる回転制止部を有し、
前記2つの刃体の少なくともいずれか1つにおいて、前記回転制止部を有する前記刃体においては前記回転制止部よりも前記指環部の側で、前記相手方の前記刃体においては前記回転制止部と接触する部分よりも前記指環部の側で、前記交点と前記指環部との間に弾性部が設けられ、
前記弾性部が、前記弾性部よりも前記交点の側にある前記刃体の部材と前記弾性部よりも前記指環部の側にある前記刃体の部材とが直接接触しないように前記交点と前記指環部との間介在する弾性体を有し、
前記弾性部が設けられている前記刃体において、前記弾性部よりも前記交点の側にある前記刃体の部材と前記弾性部よりも前記指環部の側にある前記刃体の部材とが前記弾性体を介在させて嵌合しているハサミ。
Two scissors intersecting at the intersection and scissors are connected rotatably about the intersection,
The two blade bodies include a blade portion having a blade edge and a blade, and a finger ring portion on a side opposite to the blade edge with respect to the intersection point,
Provided on at least one of the two blades, protrudes on a rotation trajectory in a direction to close the blade edge of the counterpart blade, contacts the counterpart blade, and contacts the two blades. A rotation stopping portion for stopping rotation in a direction in which the blade edge is closed;
In at least one of the two blade bodies, the blade body having the rotation restraining portion is closer to the finger ring portion than the rotation restraining portion, and the rotation restraining portion in the counterpart blade body. An elastic part is provided between the intersection and the finger ring part on the side of the finger ring part from the contacting part,
The intersection and the blade so that the elastic member does not directly contact the blade member on the side of the intersection with respect to the elastic portion and the blade member on the side of the finger ring with respect to the elastic portion. an elastic body interposed between the finger ring portion,
In the blade body provided with the elastic part, the blade member on the intersection side with respect to the elastic part and the blade member on the finger ring part side with respect to the elastic part are Scissors fitted with an elastic body .
前記弾性部が設けられている前記刃体において、前記刃部と前記指環部とが前記弾性体を介在させて嵌合している請求項1に記載のハサミ。 The scissors according to claim 1, wherein in the blade body provided with the elastic portion, the blade portion and the finger ring portion are fitted with the elastic body interposed therebetween. 前記回転制止部は、前記刃体の前記刃部において前記刃先を閉じたときに前記相手方の前記刃体の前記刃部に接する刃裏における前記交点の近傍部分より突出し、
前記相手方の前記刃体は、前記刃部の縁において前記交点を中心として前記回転制止部と同一円周上の部分に切欠き部を有し、
前記切欠き部が、前記回転制止部を挿入させて前記回転制止部と接触し、前記2つの刃体の前記刃先を閉じる方向の前記回転を制止させる請求項1又は2に記載のハサミ。
The rotation stop portion protrudes from a portion in the vicinity of the intersection point on the blade back contacting the blade portion of the counterpart blade body when the blade edge is closed in the blade portion of the blade body,
The counterpart blade has a notch in a portion on the same circumference as the rotation restraining portion around the intersection at the edge of the blade,
The scissors according to claim 1 or 2 , wherein the notch portion inserts the rotation restraining portion to contact the rotation restraining portion and restrains the rotation of the two blade bodies in the closing direction.
前記回転制止部は、前記交点より前記刃先の側でかつ前記交点から前記弾性部までの距離よりも前記交点からの距離が小さくなるように設けられている請求項1〜3のいずれか一項に記載のハサミ。 The rotation restraining part may be any one of claims 1 to 3 the distance from the intersection point than the distance from the side in and the intersection of the than the intersection edge to said elastic portion is provided to be smaller Scissors as described in. 前記回転制止部から前記交点までの距離が、前記交点から前記弾性部までの距離の20分の1以下である請求項に記載のハサミ。 The scissors according to claim 4 , wherein a distance from the rotation stop portion to the intersection is 1/20 or less of a distance from the intersection to the elastic portion.
JP2009191011A 2009-08-20 2009-08-20 Scissors Expired - Fee Related JP4477693B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS472460Y1 (en) * 1968-10-25 1972-01-27
JPS495785U (en) * 1972-04-14 1974-01-18
JPS5453785U (en) * 1977-09-22 1979-04-13
JPS60150776A (en) * 1984-01-18 1985-08-08 株式会社貝印刃物開発センター Scissors
JPH08126776A (en) * 1994-09-09 1996-05-21 Sangi Co Ltd Blade exchangeable scissors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS472460Y1 (en) * 1968-10-25 1972-01-27
JPS495785U (en) * 1972-04-14 1974-01-18
JPS5453785U (en) * 1977-09-22 1979-04-13
JPS60150776A (en) * 1984-01-18 1985-08-08 株式会社貝印刃物開発センター Scissors
JPH08126776A (en) * 1994-09-09 1996-05-21 Sangi Co Ltd Blade exchangeable scissors

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