JP2001276448A - Scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pair of scissors having contact points reducing the frictional resistance of the sliding faces of the contact points, capable of satisfactorily maintaining the slip of the sliding faces even when semisolid objects by the stains of hairs, fat, cuticles or the like are stuck to the sliding faces, and capable of being simply formed at a low cost. SOLUTION: Recesses 22 are formed on the sliding faces 21 of the contact points 20 in the scissors 30 provided with the contact points 20 for increasing the degree of contact of two blade bodies 10 slid while rotating around a pivotal part 11 at the rear of the pivotal part 11 on the blade bodies 10, respectively.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、二つの刃体にそれ
ぞれ触点を備えたハサミに関し、特には摺動面の摩擦抵
抗の少ない触点を備えたハサミに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to scissors provided with contact points on two blades, and more particularly to scissors provided with contact points having small frictional resistance on a sliding surface.

【０００２】[0002]

【従来の技術】ハサミの二つの刃体である動刃と静刃
は、それらの略中央部で枢着され、両刃体間に挟持させ
た被切断物を静刃に対し動刃を摺動させながら切断す
る。そのため両刃体の接触度が低下すればハサミの切れ
味は悪くなり、両刃体間に毛髪などの切断物が挟まって
しまうこともある。したがって、切れ味の良いハサミを
製造するには両刃体の接触度を高めることが不可欠であ
るが、両刃体の接触度を高度に高めたハサミの製造には
精度上からも限界があり、また両刃体の枢着部に遊びが
あることも両刃体の接触度を高める上の障害となる。そ
こで、従来より両刃体の枢着部後方に、刃体裏面の平坦
面より段高い位置に触点を形成し、両刃体の摺動と同時
に触点同士を摺動させて両刃体の接触度を高めることが
行われている。2. Description of the Related Art A moving blade and a stationary blade, which are two blades of scissors, are pivotally mounted at substantially central portions thereof, and a moving object which is sandwiched between both blades slides the moving blade with respect to the stationary blade. And cut it. Therefore, if the degree of contact between the two blades decreases, the sharpness of the scissors deteriorates, and a cut object such as hair may be caught between the two blades. Therefore, in order to produce sharp scissors, it is essential to increase the contact between the two blades. However, there is a limit in terms of precision in producing scissors with a high degree of contact between the two blades, and there is a limit in terms of precision. The play at the pivot point of the body is also an obstacle in increasing the degree of contact between the two blades. Therefore, a contact point is formed at a position higher than the flat surface on the back surface of the blade body, and the contact point is slid at the same time as the sliding of the blade bodies, so that the contact point between the blade bodies is formed. Enhancements have been made.

【０００３】ところで、刃体裏面の平坦面より段高い触
点同士の摺動は摩擦抵抗が大きく、把手の押し開きが重
くなりハサミを使用した細かい作業に支障が出るとか、
あるいは手に疲労が残り易いという問題があった。ま
た、ハサミを頻回に使用することにより摺動面が激しく
摩耗し、両刃体の接触度の低下によりハサミの切れ味が
悪くなるということもあった。そのため、触点の摺動面
の摩擦抵抗を減少させることは重要であり、従来より、
触点の摺動面を鏡面としたもの、触点の摺動面にフッ素
樹脂やボールベアリングなどの異材料を埋設させたもの
が提供されている。By the way, the sliding between the contact points higher than the flat surface on the back surface of the blade has a large frictional resistance, and the push-opening of the handle becomes heavy, which hinders fine work using scissors.
Another problem is that fatigue tends to remain on the hands. In addition, the frequent use of scissors causes severe wear of the sliding surface, and the sharpness of the scissors may deteriorate due to a decrease in the degree of contact between the two blades. Therefore, it is important to reduce the frictional resistance of the sliding surface of the contact point.
There are provided ones in which the sliding surface of the touch point is a mirror surface, and those in which a different material such as a fluororesin or a ball bearing is embedded in the sliding surface of the touch point.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、触点の
摺動面を鏡面としたものは、摺動面の全面同士が面接触
するため摩擦抵抗を減少させるには十分ではなかった。
また、触点の摺動面にフッ素樹脂を埋設させたものは、
製造コストが高くなるという問題があった。また、摺動
面にボールベアリングを埋設させたものは、構造が複雑
で、やはり製造コストが高くなるという問題があった。
さらに、摺動面を鏡面としたものやフッ素樹脂が埋設さ
れるものにあっては、いずれも触点の摺動面の全面同士
が面接触するものであるため、毛髪に付着した汚れ、脂
分、キューティクル等が半固形状になり摺動面全体に付
着することにより摺動面の滑りを悪くし、ひいては把手
の押し開きを重くしてハサミの使い勝手を悪くするとい
う不都合があった。However, in the case where the sliding surface of the contact point is a mirror surface, the entire sliding surface is in surface contact with each other, and is not sufficient to reduce the frictional resistance.
In addition, the one with the fluorine resin buried in the sliding surface of the contact point,
There is a problem that the manufacturing cost is increased. Further, the one in which the ball bearing is embedded in the sliding surface has a problem that the structure is complicated and the manufacturing cost is also increased.
Furthermore, when the sliding surface is a mirror surface or when the fluororesin is buried, the entire surface of the sliding surface of the touch point is in surface contact with each other, so that dirt and oil attached to the hair For this reason, cuticles and the like become semi-solid and adhere to the entire sliding surface, thereby making the sliding surface less slippery, and furthermore, making the handle open harder, resulting in the inconvenience of using scissors.

【０００５】そこで、本発明は上記事情に鑑みなされた
ものであって、触点の摺動面の摩擦抵抗が少なく、また
毛髪の汚れ、脂分、キューティクル等による半固形状物
が摺動面に付着しても摺動面の滑りを良好に維持できる
簡単かつ安価に形成できる触点を備えたハサミを提供す
ることを目的とする。Accordingly, the present invention has been made in view of the above circumstances, and has low frictional resistance on a sliding surface of a touch point, and a semi-solid material such as dirt, grease, cuticle, etc. on a sliding surface. It is an object of the present invention to provide scissors having touch points that can be easily and inexpensively formed so that sliding of a sliding surface can be maintained satisfactorily even if they adhere to the surface.

【０００６】[0006]

【課題を解決するための手段】上記課題を解決する請求
項１に記載の発明は、枢着部周りを回動しながら摺動す
る二つの刃体の接触度を高める触点をそれぞれの刃体の
枢着部後方に備えたハサミにおいて、触点の摺動面に凹
部が形成されたことを特徴とするハサミである。According to a first aspect of the present invention, there is provided an image forming apparatus, comprising: Scissors provided behind a pivot portion of a body, wherein a concave portion is formed on a sliding surface of a touch point.

【０００７】上記構成の発明によれば、触点は凹部以外
の面同士が摺動し合うのみなので、触点の摺動面の接触
面積が少なくなりその分摩擦抵抗を減少させることがで
きる。また、摺動面に凹部を有するため、毛髪、脂分、
キューティクル等による半固形状物が摺動面に付着して
も、摺動面の接触面積が少なく、また半固形状物は凹部
に収容されるので、摺動面の滑りを悪くして把手の押し
開きを悪くするという不都合がない。According to the invention having the above structure, since the contact points only slide on surfaces other than the concave portions, the contact area of the sliding surfaces of the contact points is reduced, and the frictional resistance can be reduced accordingly. In addition, since the sliding surface has a concave portion, hair, grease,
Even if a semi-solid material such as a cuticle adheres to the sliding surface, the contact area of the sliding surface is small, and the semi-solid material is accommodated in the concave portion, so that the sliding surface has a poor slip and the handle is poor. There is no inconvenience of worsening the opening.

【０００８】請求項２に記載の発明は、請求項１に記載
の発明において、触点の摺動面の凹部が、打刻により形
成されたことを特徴とするハサミである。また、請求項
３に記載の発明は、請求項１に記載の発明において、触
点の摺動面の凹部が、エッチングにより形成されたこと
を特徴とするハサミである。According to a second aspect of the present invention, there is provided the scissors according to the first aspect, wherein the concave portion of the sliding surface of the contact point is formed by stamping. According to a third aspect of the present invention, there is provided the scissors according to the first aspect, wherein the concave portion of the sliding surface of the touch point is formed by etching.

【０００９】上記構成の発明によれば、摩擦抵抗が少な
い触点を簡単かつ安価に形成できる。According to the invention having the above structure, a contact point having a small frictional resistance can be formed easily and inexpensively.

【００１０】 〔発明の詳細な説明〕以下、本発明の実施形態を図面を
参照して説明する。図１は、本実施形態に係る理容用ハ
サミ３０を示す分解斜視図であり、図２はその平面図
で、符号２０は刃体１０に形成された触点を示す。DETAILED DESCRIPTION OF THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing a barber scissors 30 according to the present embodiment, FIG. 2 is a plan view thereof, and reference numeral 20 denotes a touch point formed on the blade body 10.

【００１１】図１及び図２に示すように、ハサミ３０は
ステンレスにより形成される二つの刃体１０と、該刃体
１０を枢着する枢着部１１と、把手１２とから構成され
る。二つの刃体１０の後方部には、ネジ挿通孔１３が形
成されている。このネジ挿通孔１３にはワッシャが嵌着
されたネジ１４が挿通され、二つの刃体１０はナット１
５によりネジ１４の軸周りに回動可能に締結され、枢着
部１１が構成されている。また、刃体１０の後端には刃
体１０と一体成形された略円環状の把手１２が形成され
ている。刃体１０裏面の枢着部１１の後方には、刃体１
０の短手幅に二つの円弧に囲まれた触点２０が形成され
ている。この触点２０は、刃体１０裏面の平坦面１６よ
り段高い位置に形成されており、把手１２を押し開きす
ることにより、刃体１０の枢着部１１より前方では刃体
１０同士の摺動が繰り返され、同時に刃体１０の枢着部
１１より後方では触点２０同士の摺動が繰り返されるよ
うになっているため、枢着部１１を支点として枢着部１
１より前方の二つの刃体１０にはそれぞれ内向きの応力
が付加され、刃体１０間の接触度を高めて被切断物を切
れ味良く切断することができるようになっている。As shown in FIGS. 1 and 2, the scissors 30 include two blades 10 made of stainless steel, a pivot portion 11 for pivotally attaching the blades 10, and a handle 12. A screw insertion hole 13 is formed in the rear part of the two blades 10. A screw 14 fitted with a washer is inserted into the screw insertion hole 13, and the two blades 10
5, the joint 14 is rotatably fastened around the axis of the screw 14, thereby forming the pivoting portion 11. A substantially annular handle 12 integrally formed with the blade body 10 is formed at the rear end of the blade body 10. Behind the pivot portion 11 on the back of the blade body 10, the blade body 1
A touch point 20 surrounded by two arcs is formed at a short width of 0. The contact point 20 is formed at a position higher than the flat surface 16 on the back surface of the blade body 10, and when the handle 12 is pushed open, the slide between the blade bodies 10 is made forward of the pivotal connection portion 11 of the blade body 10. The movement is repeated, and at the same time, the sliding between the contact points 20 is repeated behind the pivotal connection portion 11 of the blade body 10.
An inward stress is applied to each of the two blade bodies 10 in front of 1 so that the degree of contact between the blade bodies 10 is increased, and the object to be cut can be cut sharply.

【００１２】次いで、本実施形態にかかる理容ハサミ３
０の触点２０について詳述する。触点２０は、叙述のよ
うに刃体１０裏面の平坦面１６より段高い位置に形成さ
れ、把手１２の押し開きに伴い常に摺動し合うため、摺
動面２１の摩耗が激しい。そこで、本実施形態の理容ハ
サミ３０では、図１、図２及び図３（ａ）に示すよう
に、触点２０の摺動面２１に平面視円形の多数の凹部２
２が散点状に形成されている。すなわち、触点２０の摺
動面２１に多数の凹部２２を形成すれば、図３（ｂ）か
らもわかるように二つの刃体１０の摺動面２１同士が接
触し合う面積が凹部２２の表面積分だけ少なくなるの
で、それだけ摩擦抵抗を減少させることができるのであ
る。摺動面２１間の摩擦抵抗を減少させることにより、
把手１２の押し開きを容易にするので理容ハサミ３０の
操作性が高められる。また、これらの凹部２２はプレス
機に刻印を装着して打刻により形成できるので、凹部２
２の形成を簡単かつ安価に行うことができる。なお、前
記打刻作業は刃体材料の硬度を高める前に行う方が容易
に行えるため、熱処理前に行うのが好ましい。Next, the hairdressing scissors 3 according to this embodiment 3
The touch point 20 of 0 will be described in detail. As described above, the contact point 20 is formed at a position higher than the flat surface 16 on the back surface of the blade body 10 and slides constantly as the handle 12 is pushed open, so that the sliding surface 21 is severely worn. Therefore, in the hairdressing scissors 30 of the present embodiment, as shown in FIGS.
2 are scattered. That is, if a large number of concave portions 22 are formed on the sliding surface 21 of the touch point 20, the area where the sliding surfaces 21 of the two blades 10 come into contact with each other is reduced as shown in FIG. Since the surface integral is reduced, the frictional resistance can be reduced accordingly. By reducing the frictional resistance between the sliding surfaces 21,
Since the handle 12 is easily pushed open, the operability of the barber scissors 30 is improved. Also, since these recesses 22 can be formed by stamping with a stamp attached to a press machine,
2 can be easily and inexpensively formed. It is preferable to perform the embossing before the heat treatment because it is easier to perform the embossing before increasing the hardness of the blade material.

【００１３】一方、触点２０は刃体１０裏面の平坦面１
６より段高い位置に形成することにより、枢着部１１を
支点として二つの刃体１０に内向きの応力を付加するも
のであることは既に述べたとおりであるが、摺動面２１
に凹部２２を形成して接触面積を減少させても、触点２
０が刃体１０裏面の平坦面１６より段高い位置にあるこ
とにはかわりなく、二つの刃体１０に付加される内向き
の応力を減少させることがないので、刃体１０間の接触
度を低下させることがないことはいうまでもない。On the other hand, the touch point 20 is a flat surface 1 on the back surface of the blade body 10.
As described above, the inward stress is applied to the two blades 10 with the pivot portion 11 as a fulcrum by forming the sliding surface 21 at a position higher than the sliding surface 21.
Even if the contact area is reduced by forming the recess 22 in the
0 does not reduce the inward stress applied to the two blades 10 irrespective of being located at a position higher than the flat surface 16 on the back surface of the blades 10, so that the degree of contact between the blades 10 is reduced. Need not be reduced.

【００１４】摺動面２１に形成される凹部２２は、上記
のように平面視円形の多数の凹部２２を散点状に形成す
るものに限定されるものではなく、線状、格子状等摺動
面２１の接触面積を減少させられればどのような形態の
凹部２２を形成してもよい。また、凹部２２は図４
（ａ）に示すように触点２０の上縁の一部と下縁の一部
を刃体１０の短手幅に残し、それ以外が凹部２２となる
単一の凹部２２を形成することとしてもよい。このよう
な凹部２２を形成すれば、図４（ｂ）からもわかるよう
に一の凹部当たりの面積が広いため、毛髪の汚れ、脂
分、キューティクル等による半固形状物を凹部２２内に
収容させたり、毛髪や紙等の切断物の切り屑も凹部２２
内に収容させることができるので、常に把手１２の押し
開きを円滑に行わせることができ、さらに凹部２２内の
清掃も容易である。The concave portions 22 formed on the sliding surface 21 are not limited to those having a large number of concave portions 22 having a circular shape in a plan view as described above. Any form of the recess 22 may be formed as long as the contact area of the moving surface 21 can be reduced. Also, the recess 22 is shown in FIG.
As shown in (a), a part of the upper edge and a part of the lower edge of the touch point 20 are left in the short width of the blade body 10, and the other part is a single concave part 22 which is a concave part 22. Is also good. By forming such a concave portion 22, as can be seen from FIG. 4B, since the area per one concave portion is large, semi-solid substances such as dirt, grease, cuticle, etc. of hair are stored in the concave portion 22. The cuttings of hair or paper, etc.
The handle 12 can be pushed and opened smoothly at all times, and the inside of the recess 22 can be easily cleaned.

【００１５】また、摺動面２１に形成される凹部２２は
打刻以外のどのような方法により行ってもよく、例えば
エッチングによって形成してもよい。エッチングによる
凹部２２の形成は、簡単かつ安価に行え、またハサミの
熱処理の前後を問わずいつでも行うことができる。The recess 22 formed in the sliding surface 21 may be formed by any method other than embossing, for example, by etching. The formation of the concave portion 22 by etching can be performed easily and inexpensively, and can be performed anytime before or after the heat treatment of the scissors.

【００１６】また、本発明に係るハサミは理容ハサミ３
０に限定されるものではなく、枢着部１１後方に触点２
０を備えるハサミであればいずれのハサミにも適用する
ことができる。The scissors according to the present invention are hairdressing scissors 3.
It is not limited to 0, and the touch point 2
Any scissors having 0 can be applied to any scissors.

【００１７】[0017]

【発明の効果】本発明は以上説明したように構成される
ため、次の効果を奏する。請求項１に記載の発明は、触
点の摺動面に凹部が形成されることにより摺動し合う接
触面が少なくなるので、摺動面間の摩擦抵抗が減少し、
把手の押し開きが容易になりハサミを使う細かい作業も
容易に行え、またハサミを持つ手に疲労を残さないハサ
ミを提供できる。また、触点の摺動面間の摩擦抵抗を減
少させることにより摺動面の摩耗が抑制されるので、刃
体の接触度が低下しにくく優れた切れ味を長期に亘り維
持できるハサミを提供できる。さらに、毛髪の汚れ、脂
分、キューティクル等が半固形状になって摺動面に付着
することがあっても、摺動面の接触面積が少なく、また
前記半固形状物を凹部内に収容させることもできるの
で、把手の押し開きを重くすることがない使い勝手に優
れたハサミを提供できる。また、毛髪や紙等の切断物の
切り屑も凹部内に収容させることができるので、これら
が摺動面間に挟まって把手の押し開きを重くすることが
ない使い勝手に優れたハサミを提供できる。Since the present invention is configured as described above, it has the following effects. According to the first aspect of the present invention, since the contact surface that slides is reduced by forming the concave portion on the sliding surface of the contact point, the frictional resistance between the sliding surfaces is reduced,
The handle can be easily pushed open, fine work using scissors can be easily performed, and scissors that do not leave fatigue on the hand holding the scissors can be provided. In addition, since the wear of the sliding surface is suppressed by reducing the frictional resistance between the sliding surfaces of the contact points, it is possible to provide scissors that are less likely to reduce the contact of the blade body and can maintain excellent sharpness over a long period of time. . Furthermore, even if hair stains, grease, cuticles, etc. become semi-solid and adhere to the sliding surface, the contact area of the sliding surface is small, and the semi-solid is contained in the recess. Since it is also possible to provide the scissors excellent in usability without increasing the push-opening of the handle. In addition, since chips of cut objects such as hair and paper can also be accommodated in the recesses, scissors excellent in usability can be provided in which they are not sandwiched between the sliding surfaces and the push-opening of the handle is not heavy. .

【００１８】請求項２及び請求項３の発明は、請求項１
の効果に加え、摺動面の凹部の形成が簡単かつ安価に行
えるので、摩擦抵抗が少ない触点を備えたハサミを安価
に製造することができる。The invention of claim 2 and claim 3 is based on claim 1
In addition to the effects described above, the formation of the concave portion on the sliding surface can be performed easily and inexpensively, so that scissors having touch points with low frictional resistance can be manufactured at low cost.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本実施形態に係る理容ハサミの分解斜視図であ
る。FIG. 1 is an exploded perspective view of a barber scissors according to the present embodiment.

【図２】本実施形態に係る理容ハサミの平面図である。FIG. 2 is a plan view of the barber scissors according to the embodiment.

【図３】（ａ）本実施形態に係る理容ハサミの触点を示
す一部拡大平面図である。 （ｂ）（ａ）の触点の拡大横断面図である。FIG. 3A is a partially enlarged plan view showing a touch point of the barber scissors according to the embodiment. (B) It is an expanded cross-sectional view of the touch point of (a).

【図４】（ａ）単一の凹部が形成された触点を示す一部
拡大平面図である。 （ｂ）（ａ）の触点の拡大横断面図である。FIG. 4A is a partially enlarged plan view showing a touch point where a single concave portion is formed. (B) It is an expanded cross-sectional view of the touch point of (a).

【符号の説明】[Explanation of symbols]

１０ 刃体 １１ 枢着部 １２ 把手 １６ 刃体裏面の平坦面 ２０ 触点 ２１ 摺動面 ２２ 凹部 ３０ ハサミ DESCRIPTION OF SYMBOLS 10 Blade body 11 Pivot part 12 Handle 16 Flat surface of blade back surface 20 Contact point 21 Sliding surface 22 Depression 30 Scissors

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】枢着部周りを回動しながら摺動する二つの
刃体の接触度を高める触点をそれぞれの刃体の枢着部後
方に備えたハサミにおいて、触点の摺動面に凹部が形成
されたことを特徴とするハサミ。1. A scissor provided with a contact point for increasing the degree of contact between two blade bodies that slide while rotating around a pivot portion, at the rear of the pivot portion of each blade body, and a sliding surface of the contact point. Scissors, wherein a concave portion is formed in the scissors. 【請求項２】触点の摺動面の凹部が、打刻により形成さ
れたことを特徴とする請求項１に記載のハサミ。2. The scissors according to claim 1, wherein the concave portion of the sliding surface at the contact point is formed by stamping. 【請求項３】触点の摺動面の凹部が、エッチングにより
形成されたことを特徴とする請求項１に記載のハサミ。3. The scissors according to claim 1, wherein the concave portion of the sliding surface of the contact point is formed by etching.