JP3667280B2

JP3667280B2 - Wheel surface adjuster

Info

Publication number: JP3667280B2
Application number: JP2001387984A
Authority: JP
Inventors: 信明三又
Original assignee: 信明三又
Priority date: 2001-12-20
Filing date: 2001-12-20
Publication date: 2005-07-06
Anticipated expiration: 2021-12-20
Also published as: JP2003191152A

Description

【０００１】
【発明の属する技術分野】
本発明は、鋏やバリカン等の湾曲面を有した切断刃を研ぐのに適した切断刃の研ぎ方法に使用され砥石の砥面を研磨調整する砥石の砥面調整具に関する。
【０００２】
【従来の技術】
一般に、例えば、理容店や美容店等では鋏を使用するが、図５に示すように、この鋏Ｃにおいては、一対の切断刃１を有しており、各切断刃１の互いに対面する裏側面２は互いに接触する刃先３の切れ味を良くするために湾曲面２ａを有して形成されている。また、表側面４の刃先３側は傾斜面５に形成されている。
そして、このような鋏Ｃは、理容店や美容店等では使用の頻度が高いので、頻繁に砥石で切断刃１を研ぎ、切れ味を常に良好にしておくことが行なわれる。
【０００３】
【発明が解決しようとする課題】
ところで、この従来の切断刃を砥石で研ぐ方法において、平面砥石で研磨を行なうと、切断刃１の裏側面２の湾曲面２ａを研ぐのに熟練を要し、作業が煩雑になってしまう。そのため、予め、砥石の砥面を湾曲形成しておいて研ぐことも行なうが、湾曲面２ａ全体が均一な曲率になるので、湾曲面２ａに連続する刃先３の切れ味が必ずしも良くなるとは言えず、より一層、刃先３の切れ味を良好にしたいという要請がある。
また、砥石の砥面も予め湾曲形成しなければならないので、研磨調整（ドレッシング）が煩雑になっているという問題もあった。
【０００４】
本発明は上記の問題点に鑑みてなされたもので、切断刃の刃先の切れ味を向上させる切断刃の研ぎ方法に使用され砥石の砥面を容易に研磨調整できる砥石の砥面調整具を提供することを目的とする。
【０００５】
【課題を解決するための手段】
先ず、本発明の砥石の砥面調整具が使用される切断刃の研ぎ方法について説明する。この方法は、湾曲面を有した切断刃を砥石を用いて研ぐ切断刃の研ぎ方法において、砥石の砥面調整具によって所定の曲率半径Ｒａの円弧面に研磨調整された砥面を有した粗砥石を用いて上記切断刃の湾曲面を研ぐ粗研ぎ工程と、該粗研ぎ工程の後に、砥石の砥面調整具によって上記粗砥石の砥面の曲率半径Ｒａよりも大きい所定の曲率半径Ｒｂの円弧面に研磨調整された砥面を有した仕上げ砥石を用いて上記切断刃の湾曲面の刃先を研ぐ構成としている。
【０００６】
これにより、先ず、粗研ぎ工程において、切断刃の湾曲面を、粗砥石を用いて研ぐ。粗砥石は砥石の砥面調整具によって所定の曲率半径Ｒａの円弧面に研磨調整された砥面を有しているので、湾曲面が曲率半径Ｒａに研がれる。
次に、仕上げ研ぎ工程で、切断刃の湾曲面の刃先を、仕上げ砥石を用いて研ぐ。仕上げ砥石は砥石の砥面調整具によって粗砥石の砥面の曲率半径Ｒａよりも大きい所定の曲率半径Ｒｂの円弧面に研磨調整された砥面を有しているので、湾曲面の刃先が、曲率半径Ｒｂの砥面で研がれる。そのため、刃先のみに角度がつき、刃先のみが鋭利に研がれることになる。その結果、切断刃の刃先の切れ味が向上させられる。
【０００７】
そして、上記目的を達成するため、本発明の砥石の砥面調整具は、円弧面に形成された砥面を有した砥石の当該砥面を研磨調整する砥石の砥面調整具において、一方側面及び他方側面を有し該各面に夫々上記砥石の砥面を研磨する研磨面を設けた板状の本体を備え、該本体の一方側面の研磨面を所定の曲率半径Ｒａの円弧面で構成し、上記本体の他方側面の研磨面を上記一方側面の研磨面の所定の曲率半径Ｒａよりも大きい所定の曲率半径Ｒｂの円弧面で構成している。
【０００８】
これにより、粗砥石を研磨調整するときは、本体の一方側面の研磨面（曲率半径Ｒａの円弧面）を粗砥石の砥面に当接させ、本体を前後左右あるいは回転させる等して移動させ、砥面を研磨する。また、仕上げ砥石を研磨調整するときは、本体の他方側面の研磨面（曲率半径Ｒｂの円弧面）を仕上げ砥石の砥面に当接させ、本体を前後左右あるいは回転させる等して移動させ、砥面を研磨する。この場合、本体を裏返しするだけで、仕上げ砥石の砥面に対応させることができるので、即ち、本体１つで２つの砥面に対応できるので、作業効率が向上させられるとともに、部品点数も最小で済むことになる。
【０００９】
そして、必要に応じ、上記本体を円盤状に形成している。砥面を研磨する際、持ち易くなり、移動操作性を向上させることができる。
また、必要に応じ、上記円盤状の本体の中心部に貫通孔を形成している。砥面を研磨する際、持ち易くなり、移動操作性を向上させることができるようになるとともに、研磨粉が本体の周囲から下に逃げ、また、貫通孔のところに逃げ出て来るので、特に水を用いる場合には水はけが良くなり、研磨面を新鮮にしておくことができ、それだけ、研磨機能を確実に発揮させることができる。
【００１０】
更に、必要に応じ、シート状ヤスリを上記本体の両面に貼着し、該シート状ヤスリによって上記研磨面を形成した構成としている。シート状ヤスリを貼着するので、容易に研磨面を形成できる。また、シート状ヤスリが摩耗したときは、シート状ヤスリを新しいものと貼り替えるだけで、研磨面を刷新できるので、研磨面の刷新作業を容易に行なうことができるとともに、何回も使用できるので、無駄がなく、取扱性を向上させることができる。
【００１１】
更にまた、必要に応じ、短冊状の複数のシート状ヤスリを上記本体の両面に放射状に貼着し、該シート状ヤスリによって上記研磨面を形成した構成としている。シート状ヤスリを貼着するので、容易に研磨面を形成できる。また、シート状ヤスリが摩耗したときは、シート状ヤスリを新しいものと貼り替えるだけで、研磨面を刷新できるので、研磨面の刷新作業を容易に行なうことができるとともに、何回も使用できるので、無駄がなく、取扱性を向上させることができる。特に、短冊状の複数のシート状ヤスリを本体の両面に放射状に貼着するので、全面に貼着しなくても、研磨機能を発揮させることができ、貼着作業性が良く、また、研磨効率も向上させることができる。
【００１２】
また、必要に応じ、上記本体を硬質樹脂で形成している。強度を高くし、耐久性を向上させることができるとともに、軽量で操作性を向上させることができる。
更に、必要に応じ、上記曲率半径Ｒａを、１５０００ｍｍ≦Ｒａ＜３５０００ｍｍ、上記曲率半径Ｒｂを、１５０００ｍｍ＜Ｒｂ≦３５０００ｍｍの範囲に設定している。このＲａ，Ｒｂの範囲において、Ｒａ＜Ｒｂの条件は変わらない。種々の切断刃に対応させることができ、特に、理容や美容用の鋏やバリカン等の専用切断具に対して有効になる。
【００１３】
【発明の実施の形態】
以下、添付図面に基づいて、本発明の実施の形態に係る砥石の砥面調整具について詳細に説明する。先ず、本発明の砥石の砥面調整具が使用される切断刃の研ぎ方法について説明する。
図１及び図２に示すように、この切断刃の研ぎ方法は、湾曲面を有した切断刃を砥石を用いて研ぐ方法であり、上述した理容店や美容店等で使用される鋏を研ぐ方法である。図５及び図６に示すように、鋏Ｃは、一対の切断刃１を有しており、各切断刃１の互いに対面する裏側面２は互いに接触する刃先３の切れ味を良くするために湾曲面２ａを有して形成されている。また、表側面４の刃先３側は傾斜面５に形成されている。
【００１４】
以下に研ぎ手順について図１を用いて詳しく説明する。
（１）表側面の粗研ぎ工程
先ず、各切断刃１の表側面４の傾斜面５を、平面粗砥石（図示せず）を用いて研ぐ（１−１）。
【００１５】
（２）裏側面の粗研ぎ工程
次に、各切断刃１の裏側面２の湾曲面２ａを、曲面粗砥石Ｔ1 を用いて研ぐ（１−２）。曲面粗砥石Ｔ1 は、図１（２）に示すように、実施の形態に係る後述の砥石の砥面調整具１０によって所定の曲率半径Ｒａ（例えば，Ｒａ＝２００００ｍｍ）の円弧面に研磨調整された砥面Ｔａを有している。これにより、裏側面２の湾曲面２ａが、図２に示すように、曲率半径Ｒａに研がれる。
【００１６】
（３）表側面の仕上げ研ぎ工程
それから、各切断刃１の表側面４の傾斜面５の刃先３を、図２に示すように、傾斜面５の角度θ1 よりも大きい角度θ2 で、平面仕上げ砥石（図示せず）を用いて研ぐ（１−３）。これにより、表側刃先面６を形成する。
【００１７】
（４）裏側面の仕上げ研ぎ工程
その後、各切断刃１の裏側面２の湾曲面２ａの刃先３を、曲面仕上げ砥石Ｔ2 を用いて研ぐ（１−４）。曲面仕上げ砥石Ｔ2 は、図１（４）に示すように、実施の形態に係る後述の砥石の砥面調整具１０によって粗砥石Ｔ1 の砥面Ｔａの曲率半径Ｒａ（例えば，Ｒａ＝２００００ｍｍ）よりも大きい所定の曲率半径Ｒｂ（例えば，Ｒｂ＝３００００ｍｍ）の円弧面に研磨調整された砥面Ｔｂを有している。これにより、裏側面２の湾曲面２ａの刃先３が、図２に示すように、曲率半径Ｒｂに研がれ、裏面刃先面７を形成する。そのため、先の表側面４の仕上げ研ぎ工程で刃先３が傾斜面５の角度よりも大きい角度で研がれていることと相まって、刃先３のみが鋭利に研がれることになる。即ち、表側刃先面６及び裏面刃先面７により刃先３のみが鋭利に研がれることになる。その結果、切断刃１の刃先３の切れ味が向上させられる。
【００１８】
次に、本発明の実施の形態に係る砥石の砥面調整具１０について詳細に説明する。実施の形態に係る砥石の砥面調整具１０は、円弧面に形成された砥面を有した砥石の当該砥面を研磨調整するもので、実施の形態では、上記の切断刃１の研ぎ方法に使用される曲面粗砥石Ｔ1 及び曲面仕上げ砥石Ｔ2 の砥面Ｔａ及び砥面Ｔｂを研磨調整するためのものである。
詳しくは、図３及び図４に示すように、実施の形態に係る砥石の砥面調整具１０は、一方側面１１及び他方側面１２を有し各面に夫々砥石の砥面Ｔａ及び砥面Ｔｂを研磨する研磨面１１ａ及び研磨面１２ａが設けられた板状の本体１３を備えている。本体１３は、硬質樹脂で円盤状に形成されているとともに、その中心部に軸線方向の貫通孔１４が形成されている。本体１３は、図３に示すように、例えば、外径が２００ｍｍ，厚さが２０ｍｍ，貫通孔１４の内径が５０ｍｍの大きさに形成されている。
【００１９】
また、本体１３の一方側面１１の研磨面１１ａは所定の曲率半径Ｒａの円弧面で構成され、本体１３の他方側面１２の研磨面１２ａは一方側面１１の研磨面１１ａの所定の曲率半径Ｒａよりも大きい所定の曲率半径Ｒｂの円弧面で構成されている。曲率半径Ｒａは、例えば、１５０００ｍｍ≦Ｒａ＜３５０００ｍｍ、曲率半径Ｒｂは、１５０００ｍｍ＜Ｒｂ≦３５０００ｍｍの範囲に設定されている。実施の形態では、Ｒａ＝２００００ｍｍ，Ｒｂ＝３００００ｍｍに設定されている。尚、図３中符号１６，１７は本体１３の側部に設けられ研磨面１１ａ及び研磨面１２ａを示す印である。
【００２０】
更に、実施の形態に係る砥石の砥面調整具１０においては、短冊状の複数のシート状ヤスリ１５を本体１３の両面に放射状に接着剤で貼着し、このシート状ヤスリ１５によって研磨面１１ａ及び研磨面１２ａを形成している。シート状ヤスリ１５としては、例えば、市販の適宜の粒度の所謂「紙やすり（鑢）」あるいは「布やすり（鑢）」が用いられる。シート状ヤスリ１５を貼着するので、容易に研磨面１１ａ及び研磨面１２ａを形成できる。また、シート状ヤスリ１５が摩耗したときは、シート状ヤスリ１５を新しいものと貼り替えるだけで、研磨面１１ａ及び研磨面１２ａを刷新できるので、研磨面１１ａ及び研磨面１２ａの刷新作業が容易に行なわれるとともに、何回も使用できるので、無駄がなく、取扱性が向上させられる。また、短冊状の複数のシート状ヤスリ１５を本体１３の両面に放射状に接着剤で貼着するので、全面に貼着しなくても、研磨機能を発揮させることができ、貼着作業性が良く、また、研磨効率も向上させられる。更に、本体１３は硬質樹脂で形成されているので、強度が高く、耐久性が向上させられるとともに、軽量で操作性も向上させられる。
【００２１】
従って、実施の形態に係る砥石の砥面調整具１０を用いて砥石を研磨調整するときは、以下のようにして行なう。先ず、曲面粗砥石Ｔ1 を研磨調整するときは、本体１３の一方側面１１の研磨面１１ａ（曲率半径Ｒａの円弧面）を曲面粗砥石Ｔ1 の砥面Ｔａに当接させ、本体１３を前後左右あるいは回転させる等して移動させ、砥面Ｔａを研磨する。この場合、本体１３は、円盤状に形成され、その中心部に貫通孔１４が形成されているので、持ち易く、そのため、移動操作性が向上させられる。また、研磨粉が本体１３の周囲から下に逃げ、また、貫通孔１４のところに逃げ出て来るので、特に水を用いる場合には水はけが良くなり、研磨面１１ａを新鮮にしておくことができ、それだけ、研磨機能が確実に発揮させられる。
【００２２】
次に、曲面仕上げ砥石Ｔ2 を研磨調整するときは、図４に示すように、本体１３の他方側面１２の研磨面１２ａ（曲率半径Ｒｂの円弧面）を曲面仕上げ砥石Ｔ2 の砥面Ｔｂに当接させ、本体１３を前後左右あるいは回転させる等して移動させ、砥面Ｔｂを研磨する。この場合、本体１３を裏返しするだけで、曲面仕上げ砥石Ｔ2 の砥面Ｔｂに対応させることができるので、即ち、本体１３が１つで２つの砥面Ｔａ及び砥面Ｔｂに対応できるので、作業効率が向上させられるとともに、部品点数も最小で済むことになる。また、この研磨においては、本体１３は、円盤状に形成され、その中心部に貫通孔１４が形成されているので、持ち易く、そのため、移動操作性が向上させられる。また、研磨粉が本体１３の周囲から下に逃げ、また、貫通孔１４のところに逃げ出て来るので、特に水を用いる場合には、水はけが良くなり、研磨面１２ａを新鮮にしておくことができ、それだけ、研磨機能が確実に発揮させられる。特に水を用いる場合には、水はけが良くなる。
【００２３】
尚、上記実施の形態では、本体１３の研磨面１１ａ及び研磨面１２ａをシート状ヤスリ１５を貼着して構成したが、必ずしもこれに限定されるものではなく、本体１３そのものを砥石で形成したり、金属ヤスリにする等適宜変更して差支えない。また、研磨面１１ａ及び研磨面１２ａの曲率半径も、切断刃１の湾曲面２ａに合わせて適宜に設定して良いことは勿論である。また、上記実施の形態の説明では、鋏に本発明を適用したが、必ずしもこれに限定されるものではなく、バリカンやその他の切断刃に適用しても良く、要するに、湾曲面を有した切断刃であれば、どのようなものでも良い。
【００２４】
【発明の効果】
以上説明したように本発明の砥石の砥面調整具を使用した切断刃の研ぎ方法によれば、粗研ぎ工程で、砥石の砥面調整具によって所定の曲率半径Ｒａの円弧面に研磨調整された砥面を有した粗砥石を用いて切断刃の湾曲面を研ぎ、その後、仕上げ研ぎ工程で、砥石の砥面調整具によって曲率半径Ｒａよりも大きい所定の曲率半径Ｒｂの円弧面に研磨調整された砥面を有した仕上げ砥石を用いて切断刃の湾曲面の刃先を研ぐので、これにより、湾曲面の刃先のみに角度がつき、刃先のみが鋭利に研がれることになる。その結果、切断刃の刃先の切れ味を向上させることができる。
【００２５】
また、本発明の砥石の砥面調整具によれば、本体の一方側面の研磨面を所定の曲率半径Ｒａの円弧面で構成し、本体の他方側面の研磨面を曲率半径Ｒａよりも大きい所定の曲率半径Ｒｂの円弧面で構成したので、本体を裏返しするだけで、２種類の砥石の砥面に対応させた研磨を行なうことができ、即ち、本体１つで２つの砥面に対応できるので、研磨作業効率を向上させることができるとともに、部品点数も最小にすることができる。このため、粗研ぎ工程で、所定の曲率半径Ｒａの円弧面に研磨調整された砥面を有した粗砥石を用いて切断刃の湾曲面を研ぎ、その後、仕上げ研ぎ工程で、曲率半径Ｒａよりも大きい所定の曲率半径Ｒｂの円弧面に研磨調整された砥面を有した仕上げ砥石を用いて切断刃の湾曲面の刃先を研ぐ際、これに用いられる砥石を容易に提供することができるようになる。
【００２６】
そして、この砥石の砥面調整具において、本体を円盤状に形成した場合には、持ち易くなり、移動操作性を向上させることができる。
また、円盤状の本体の中心部に貫通孔を形成した場合には、持ち易くなり、移動操作性を向上させることができるようになるとともに、研磨粉が本体の周囲から下に逃げ、また、貫通孔のところに逃げ出て来るので、特に水を用いる場合には水はけが良くなり、研磨面を新鮮にしておくことができ、それだけ、研磨機能を確実に発揮させることができる。
【００２７】
更に、シート状ヤスリを本体の両面に貼着し、シート状ヤスリによって研磨面を形成した場合には、シート状ヤスリを貼着するので、容易に研磨面を形成できる。また、シート状ヤスリが摩耗したときは、シート状ヤスリを新しいものと貼り替えるだけで、研磨面を刷新できるので、研磨面の刷新作業を容易に行なうことができるとともに、何回も使用できるので、無駄がなく、取扱性を向上させることができる。
更にまた、短冊状の複数のシート状ヤスリを本体の両面に放射状に貼着し、シート状ヤスリによって研磨面を形成した場合には、短冊状の複数のシート状ヤスリを本体の両面に放射状に貼着するので、全面に貼着しなくても、研磨機能を発揮させることができ、貼着作業性が良く、また、研磨効率も向上させることができる。
【００２８】
また、本体を硬質樹脂で形成した場合には、強度を高くし、耐久性を向上させることができるとともに、軽量で操作性を向上させることができる。
更に、曲率半径Ｒａを、１５０００ｍｍ≦Ｒａ＜３５０００ｍｍ、曲率半径Ｒｂを、１５０００ｍｍ＜Ｒｂ≦３５０００ｍｍの範囲に設定した場合には、種々の切断刃に対応させることができ、特に、理容や美容用の鋏やバリカン等の専用切断具に対して有効になる。
【図面の簡単な説明】
【図１】本発明の砥石の砥面調整具が使用される切断刃の研ぎ方法を示す工程図である。
【図２】本発明の砥石の砥面調整具が使用される切断刃の研ぎ方法によって研がれた切断刃の状態を示す拡大図である。
【図３】本発明の実施の形態に係る砥石の砥面調整具を示す図であり、（ａ）は正面図、（ｂ）は側面図である。
【図４】本発明の実施の形態に係る砥石の砥面調整具を砥石の研磨状態とともに示す断面斜視図である。
【図５】本発明の砥石の砥面調整具が使用される切断刃の研ぎ方法が適用される鋏の一例を示す図である。
【図６】図５中Ａ−Ａ線断面図である。
【符号の説明】
Ｃ鋏
１切断刃
２裏側面
２ａ湾曲面
３刃先
４表側面
５傾斜面
６表側刃先面
７裏面刃先面
（１）表側面の粗研ぎ工程
（２）裏側面の粗研ぎ工程
（３）表側面の仕上げ研ぎ工程
（４）裏側面の仕上げ研ぎ工程
Ｒａ曲率半径
Ｒｂ曲率半径
Ｔ1 曲面粗砥石
Ｔａ砥面
Ｔ2 曲面仕上げ砥石
Ｔｂ砥面
１０砥石の砥面調整具
１１一方側面
１１ａ研磨面
１２他方側面
１２ａ研磨面
１３本体
１４貫通孔
１５シート状ヤスリ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to abrasive surface adjuster of the grindstone for polishing adjusting abrasive surface of the used sharpen method of the cutting blade suitable for sharpening the cutting blade having a curved surface such as a scissors or clippers abrasive stone.
[0002]
[Prior art]
In general, for example, a barber shop or a beauty shop uses a scissors. As shown in FIG. 5, the scissors C have a pair of cutting blades 1 and the back sides of the cutting blades 1 facing each other. The surface 2 is formed with a curved surface 2a in order to improve the sharpness of the cutting edges 3 that are in contact with each other. Further, the cutting edge 3 side of the front side surface 4 is formed on the inclined surface 5.
And since such cocoon C is frequently used in a barber shop, a beauty shop, etc., the cutting blade 1 is frequently sharpened with a grindstone, and the sharpness is always kept good.
[0003]
[Problems to be solved by the invention]
By the way, in this conventional method of sharpening a cutting blade with a grindstone, if polishing is performed with a flat grindstone, skill is required to sharpen the curved surface 2a of the back side surface 2 of the cutting blade 1, and the operation becomes complicated. For this reason, the grinding surface of the grindstone is previously curved and sharpened, but since the entire curved surface 2a has a uniform curvature, the sharpness of the cutting edge 3 continuous with the curved surface 2a is not necessarily improved. Further, there is a request for improving the sharpness of the blade edge 3.
In addition, since the grinding surface of the grindstone must be curved in advance, there is also a problem that polishing adjustment (dressing) is complicated.
[0004]
The present invention has been made in view of the problems described above, the abrasive surface adjuster of the grinding wheel that can be easily polished adjust abrasive surface of the used sharpen method of the cutting blade to improve the sharpness of the cutting edge of the cutting blade grinding stone The purpose is to provide.
[0005]
[Means for Solving the Problems]
First, a method for sharpening a cutting blade in which the grindstone surface adjustment tool of the present invention is used will be described. This method is a grinding method for a cutting blade in which a cutting blade having a curved surface is sharpened by using a grindstone, and a rough surface having a grinding surface that is polished and adjusted to an arc surface having a predetermined radius of curvature Ra by a grindstone grinding surface adjuster. A rough grinding step of sharpening the curved surface of the cutting blade using a grindstone, and a rough curvature step of a predetermined curvature radius Rb larger than the curvature radius Ra of the grinding surface of the rough grindstone by the grindstone grinding tool after the rough grinding step. The cutting edge of the curved surface of the cutting blade is sharpened by using a finishing grindstone having a polished grinding surface on an arc surface.
[0006]
Thereby, first, in the rough polishing step, the curved surface of the cutting blade is sharpened using a rough grindstone. Since the rough grindstone has a grinding surface that is polished and adjusted to an arc surface having a predetermined radius of curvature Ra by the grindstone grinding surface adjuster, the curved surface is sharpened to the curvature radius Ra.
Next, in the finishing sharpening step, the cutting edge of the curved surface of the cutting blade is sharpened using a finishing grindstone. Since the finishing grindstone has a grinding surface adjusted to a circular arc surface having a predetermined curvature radius Rb larger than the curvature radius Ra of the grinding surface of the rough grinding stone by the grinding surface adjustment tool of the grinding stone, the cutting edge of the curved surface is Sharpening is performed with a grinding surface having a radius of curvature Rb. Therefore, only the cutting edge is angled, and only the cutting edge is sharpened. As a result, the sharpness of the cutting edge of the cutting blade is improved.
[0007]
And in order to achieve the above-mentioned object, the grindstone surface adjustment tool of the grindstone of the present invention is a grindstone grindstone adjustment tool for adjusting the grindstone surface of the grindstone having a grindstone formed on an arc surface. And a plate-like main body provided with a polishing surface for polishing the polishing surface of the grindstone on each of the surfaces, and the polishing surface on the one side of the main body is formed by an arc surface having a predetermined radius of curvature Ra Then, the polishing surface on the other side surface of the main body is constituted by an arc surface having a predetermined curvature radius Rb larger than the predetermined curvature radius Ra of the polishing surface on the one side surface.
[0008]
Thus, when adjusting the grinding of the rough grindstone, the polishing surface on one side of the main body (the arc surface with the radius of curvature Ra) is brought into contact with the grinding surface of the rough grindstone, and the main body is moved back and forth, left and right or rotated. Polish the abrasive surface. Further, when adjusting the polishing of the finishing grindstone, the polishing surface on the other side of the main body (arc surface with a radius of curvature Rb) is brought into contact with the grinding surface of the finishing grindstone, and the main body is moved back and forth, left and right or rotated, Polish the abrasive surface. In this case, it is possible to correspond to the grinding surface of the finishing whetstone just by turning the main body upside down, that is, since one main body can correspond to two grinding surfaces, work efficiency is improved and the number of parts is also minimized. Will be enough.
[0009]
And the said main body is formed in the disk shape as needed. When polishing the abrasive surface, it becomes easier to hold and the movement operability can be improved.
Further, if necessary, a through hole is formed in the central portion of the disk-shaped main body. When polishing the abrasive surface, it becomes easier to hold and improve the operability of movement, and the abrasive powder escapes downward from the periphery of the main body and also escapes to the through hole. In the case of using water, drainage is improved and the polished surface can be kept fresh, and the polishing function can be surely exhibited.
[0010]
Furthermore, if necessary, sheet-shaped files are attached to both surfaces of the main body, and the polished surface is formed by the sheet-shaped files. Since the sheet-like file is attached, the polished surface can be easily formed. Also, when the sheet file is worn, the polishing surface can be renewed by simply replacing the sheet file with a new one, so the polishing surface can be easily renewed and used many times. There is no waste and the handling can be improved.
[0011]
Furthermore, if necessary, a plurality of strip-shaped file files are radially attached to both surfaces of the main body, and the polished surface is formed by the sheet files. Since the sheet-like file is attached, the polished surface can be easily formed. Also, when the sheet file is worn, the polishing surface can be renewed by simply replacing the sheet file with a new one, so the polishing surface can be easily renewed and used many times. There is no waste and the handling can be improved. In particular, since a plurality of strip-shaped file files are radially attached to both sides of the main body, the polishing function can be exerted without attaching to the entire surface, and the attachment workability is good. Efficiency can also be improved.
[0012]
Moreover, the said main body is formed with hard resin as needed. Strength can be increased, durability can be improved, and light weight and operability can be improved.
Further, the radius of curvature Ra is set in the range of 15000 mm ≦ Ra <35000 mm, and the radius of curvature Rb is set in the range of 15000 mm <Rb ≦ 35000 mm as necessary. Within the range of Ra and Rb, the condition of Ra <Rb does not change. It can be applied to various cutting blades, and is particularly effective for dedicated cutting tools such as barbers and hairdressers for hairdressing and beauty.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, based on an accompanying drawing, the grindstone surface adjustment tool of the grindstone concerning an embodiment of the invention is explained in detail. First, a method for sharpening a cutting blade in which the grindstone surface adjustment tool of the present invention is used will be described.
As shown in FIGS. 1 and 2, this cutting blade sharpening method is a method of sharpening a cutting blade having a curved surface with a grindstone, and sharpens the scissors used in the above-mentioned barber shops and beauty shops. Is the method. As shown in FIGS. 5 and 6, the ridge C has a pair of cutting blades 1, and the back side surfaces 2 facing each other of the cutting blades 1 are curved to improve the sharpness of the cutting edges 3 that are in contact with each other. The surface 2a is formed. Further, the cutting edge 3 side of the front side surface 4 is formed on the inclined surface 5.
[0014]
Hereinafter, the sharpening procedure will be described in detail with reference to FIG.
(1) Roughening process of front side First, the inclined surface 5 of the front side 4 of each cutting blade 1 is sharpened using a flat rough grindstone (not shown) (1-1).
[0015]
(2) Rough grinding process of back side Next, the curved surface 2a of the back side 2 of each cutting blade 1 is sharpened using a curved rough grindstone T1 (1-2). As shown in FIG. 1 (2), the curved rough grindstone T1 is polished and adjusted to an arc surface having a predetermined radius of curvature Ra (for example, Ra = 20000 mm) by a grindstone adjusting tool 10 of a grindstone according to an embodiment described later. A grinding surface Ta is provided. Thereby, the curved surface 2a of the back side surface 2 is sharpened to the curvature radius Ra as shown in FIG.
[0016]
(3) Front side finishing sharpening step Then, the edge 3 of the inclined surface 5 of the front side surface 4 of each cutting blade 1 is flat-finished at an angle θ2 larger than the angle θ1 of the inclined surface 5 as shown in FIG. Sharpen with a grindstone (not shown) (1-3). Thereby, the front side blade edge surface 6 is formed.
[0017]
(4) Back side finishing sharpening step Thereafter, the cutting edge 3 of the curved surface 2a of the back side 2 of each cutting blade 1 is sharpened using a curved finishing grindstone T2 (1-4). As shown in FIG. 1 (4), the curved surface finishing grindstone T2 is obtained from the radius of curvature Ra (for example, Ra = 20000 mm) of the grinding surface Ta of the rough grinding stone T1 by the grindstone grinding tool adjusting tool 10 described later according to the embodiment. The grinding surface Tb is adjusted to be polished on an arc surface having a larger predetermined curvature radius Rb (for example, Rb = 30000 mm). Thereby, the cutting edge 3 of the curved surface 2a of the back side surface 2 is sharpened to the curvature radius Rb as shown in FIG. Therefore, only the blade edge 3 is sharpened in combination with the fact that the blade edge 3 is sharpened at an angle larger than the angle of the inclined surface 5 in the final sharpening step of the front surface 4. That is, only the cutting edge 3 is sharpened by the front side cutting edge surface 6 and the back surface cutting edge surface 7. As a result, the sharpness of the cutting edge 3 of the cutting blade 1 is improved.
[0018]
Next, the grinding wheel surface adjustment tool 10 for a grindstone according to an embodiment of the present invention will be described in detail. The grindstone surface adjustment tool 10 according to the embodiment adjusts the grinding surface of the grindstone having a grind surface formed on an arcuate surface, and in the embodiment, the sharpening method for the cutting blade 1 described above. For polishing and adjusting the grinding surface Ta and the grinding surface Tb of the curved rough grindstone T1 and the curved finishing grindstone T2.
Specifically, as shown in FIGS. 3 and 4, the grindstone grinding surface adjuster 10 according to the embodiment has one side surface 11 and the other side surface 12, and each surface has a grinding surface Ta and a grinding surface Tb. And a plate-like main body 13 provided with a polishing surface 11a and a polishing surface 12a. The main body 13 is formed of a hard resin into a disk shape, and an axial through hole 14 is formed at the center thereof. As shown in FIG. 3, the main body 13 is formed, for example, in such a size that the outer diameter is 200 mm, the thickness is 20 mm, and the inner diameter of the through hole 14 is 50 mm.
[0019]
Further, the polishing surface 11a of the one side surface 11 of the main body 13 is configured by an arc surface having a predetermined radius of curvature Ra, and the polishing surface 12a of the other side surface 12 of the main body 13 is larger than the predetermined curvature radius Ra of the polishing surface 11a of the one side surface 11. Is formed of a circular arc surface having a large predetermined curvature radius Rb. The curvature radius Ra is set, for example, in a range of 15000 mm ≦ Ra <35000 mm, and the curvature radius Rb is set in a range of 15000 mm <Rb ≦ 35000 mm. In the embodiment, Ra = 20000 mm and Rb = 30000 mm are set. In FIG. 3, reference numerals 16 and 17 are marks provided on the side of the main body 13 to indicate the polishing surface 11a and the polishing surface 12a.
[0020]
Furthermore, in the grindstone grinding surface adjuster 10 according to the embodiment, a plurality of strip-shaped file files 15 are radially attached to both surfaces of the main body 13 with an adhesive, and the sheet-shaped file 15 causes the polishing surface 11a. And the polishing surface 12a is formed. As the sheet-like file 15, for example, a so-called “paper file (鑢)” or “cloth file (鑢)” having an appropriate particle size on the market is used. Since the sheet-like file 15 is stuck, the polishing surface 11a and the polishing surface 12a can be easily formed. Further, when the sheet-like file 15 is worn, the polishing surface 11a and the polishing surface 12a can be renewed by simply replacing the sheet-like file 15 with a new one, so that the work for renewing the polishing surface 11a and the polishing surface 12a is easy. Since it can be used many times, there is no waste and the handling is improved. In addition, since a plurality of strip-shaped file 15 are radially attached to both surfaces of the main body 13 with an adhesive, the polishing function can be exerted without being attached to the entire surface, and the workability of the attachment is improved. The polishing efficiency is also improved. Furthermore, since the main body 13 is formed of a hard resin, the strength is high, durability is improved, and light weight and operability are also improved.
[0021]
Therefore, when the grinding wheel is polished and adjusted using the grinding wheel surface adjustment tool 10 according to the embodiment, it is performed as follows. First, when adjusting the grinding of the curved rough grindstone T1, the polishing surface 11a (the arc surface of the curvature radius Ra) of the one side surface 11 of the main body 13 is brought into contact with the grinding surface Ta of the curved rough grindstone T1, so Alternatively, it is moved by rotating it or the like, and the abrasive surface Ta is polished. In this case, the main body 13 is formed in a disk shape, and the through hole 14 is formed at the center thereof. Therefore, the main body 13 is easy to hold, and thus the movement operability is improved. Further, since the polishing powder escapes downward from the periphery of the main body 13 and escapes to the through hole 14, drainage is improved particularly when water is used, and the polishing surface 11a should be kept fresh. The polishing function can be surely exhibited.
[0022]
Next, when the polishing of the curved surface finishing grindstone T2 is adjusted, as shown in FIG. 4, the polishing surface 12a (the arc surface having the radius of curvature Rb) of the other side surface 12 of the main body 13 is contacted with the grinding surface Tb of the curved surface finishing grindstone T2. Then, the main body 13 is moved back and forth, right and left or rotated to polish the grinding surface Tb. In this case, it is possible to correspond to the grinding surface Tb of the curved surface finishing grindstone T2 simply by turning over the main body 13, that is, the single main body 13 can correspond to the two grinding surfaces Ta and the grinding surface Tb. Efficiency is improved and the number of parts is minimized. Further, in this polishing, the main body 13 is formed in a disk shape, and the through hole 14 is formed in the central portion thereof. Further, since the abrasive powder escapes downward from the periphery of the main body 13 and escapes to the through hole 14, drainage is improved particularly when water is used, and the polishing surface 12a should be kept fresh. Therefore, the polishing function can be surely exhibited. In particular, when water is used, drainage is improved.
[0023]
In the above-described embodiment, the polishing surface 11a and the polishing surface 12a of the main body 13 are configured by adhering the sheet-like file 15. However, the present invention is not necessarily limited to this, and the main body 13 itself is formed of a grindstone. Or a metal file or other suitable changes. Of course, the radii of curvature of the polishing surface 11a and the polishing surface 12a may be appropriately set in accordance with the curved surface 2a of the cutting blade 1. In the description of the above embodiment, the present invention is applied to the scissors. However, the present invention is not necessarily limited to this, and may be applied to clippers and other cutting blades. In short, the cutting has a curved surface. Any blade can be used.
[0024]
【The invention's effect】
As described above, according to the cutting blade sharpening method using the grinding wheel surface adjustment tool of the present invention , in the rough grinding step, the grinding surface of the grinding wheel is adjusted to an arc surface having a predetermined radius of curvature Ra. Sharpen the curved surface of the cutting blade using a rough grindstone having a sharpened grinding surface, and then adjust the polishing to a circular arc surface having a predetermined curvature radius Rb larger than the curvature radius Ra by the grinding wheel surface adjustment tool in the finishing sharpening process. Since the cutting edge of the curved surface of the cutting blade is sharpened using the finishing grindstone having the polished surface, only the cutting edge of the curved surface is angled, and only the cutting edge is sharpened. As a result, the sharpness of the cutting edge of the cutting blade can be improved.
[0025]
Moreover, according to the grindstone grinding tool of the present invention, the polishing surface on one side surface of the main body is configured by an arc surface having a predetermined curvature radius Ra, and the polishing surface on the other side surface of the main body is a predetermined larger radius of curvature Ra. Therefore, it is possible to perform polishing corresponding to the grinding surfaces of two types of grindstones by simply turning over the main body, that is, one main body can handle two grinding surfaces. Therefore, the polishing work efficiency can be improved and the number of parts can be minimized. For this reason, in the rough grinding process, the curved surface of the cutting blade is sharpened using a rough grindstone having a grinding surface that is polished and adjusted to an arc surface having a predetermined curvature radius Ra, and then in the finishing sharpening process, from the curvature radius Ra. When a sharpening edge of a curved surface of a cutting blade is sharpened using a finishing grindstone having a grinding surface adjusted to be polished on a circular arc surface having a larger predetermined radius of curvature Rb, the grindstone used for this can be easily provided. become.
[0026]
And in this grindstone grinding surface adjuster, when the main body is formed in a disc shape, it becomes easy to hold and the movement operability can be improved.
In addition, when a through-hole is formed in the center of the disc-shaped body, it becomes easier to hold, and it becomes possible to improve the movement operability, and the abrasive powder escapes from the periphery of the body, Since it escapes to the through-hole, drainage is improved particularly when water is used, the polishing surface can be kept fresh, and the polishing function can be reliably exhibited.
[0027]
Further, when a sheet-like file is attached to both surfaces of the main body and the polishing surface is formed by the sheet-like file, the sheet-like file is attached so that the polishing surface can be easily formed. Also, when the sheet-shaped file is worn, the polished surface can be renewed by simply replacing the sheet-shaped file with a new one, so the polishing surface can be easily renewed and used many times. There is no waste and the handling can be improved.
Furthermore, when a plurality of strip-shaped file files are radially attached to both surfaces of the main body and a polished surface is formed by the sheet-shaped file, a plurality of strip-shaped file files are radially formed on both surfaces of the main body. Since it sticks, even if it does not stick on the whole surface, a polishing function can be exhibited, sticking workability | operativity is good, and polishing efficiency can also be improved.
[0028]
Further, when the main body is formed of a hard resin, the strength can be increased, the durability can be improved, and the operability can be improved with a light weight.
Further, when the radius of curvature Ra is set to the range of 15000 mm ≦ Ra <35000 mm and the radius of curvature Rb is set to the range of 15000 mm <Rb ≦ 35000 mm, it can be used for various cutting blades, especially for barber and beauty use. Effective for special cutting tools such as scissors and clippers.
[Brief description of the drawings]
FIG. 1 is a process diagram showing a sharpening method of a cutting blade in which a grindstone surface adjustment tool of a grindstone of the present invention is used .
FIG. 2 is an enlarged view showing the state of a cutting blade sharpened by a cutting blade sharpening method in which the grindstone surface adjustment tool of the present invention is used .
FIGS. 3A and 3B are diagrams showing a grindstone grinding surface adjuster according to an embodiment of the present invention, wherein FIG. 3A is a front view and FIG. 3B is a side view.
FIG. 4 is a cross-sectional perspective view showing the grindstone surface adjustment tool of the grindstone according to the embodiment of the present invention together with the grinding state of the grindstone.
FIG. 5 is a view showing an example of a scissors to which a cutting blade sharpening method using the grinding wheel surface adjustment tool of the present invention is applied.
6 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
C 鋏 1 Cutting blade 2 Back side 2a Curved surface 3 Cutting edge 4 Front side 5 Inclined surface 6 Front side cutting edge 7 Back side cutting edge (1) Front side rough grinding process (2) Back side rough grinding process (3) Front side Finishing sharpening step (4) Finishing sharpening step Ra on the back side Ra Radius of curvature Rb Radius of curvature T1 Curved rough grindstone Ta Grinding surface T2 Curved grindstone Tb Grinding surface 10 Grinding wheel surface adjustment tool 11 Polishing surface 13 Body 14 Through-hole 15 Sheet-shaped file

Claims

In a grindstone surface adjustment tool for grinding and adjusting the grinding surface of a grindstone having a grinding surface formed on an arc surface,
A plate-like main body having one side surface and the other side surface, each provided with a polishing surface for polishing the grinding surface of the grindstone, and the polishing surface on one side surface of the main body being an arc surface having a predetermined radius of curvature Ra And the polishing surface on the other side of the main body is an arc surface having a predetermined curvature radius Rb larger than the predetermined curvature radius Ra of the polishing surface on the one side surface. .

2. The grindstone grinding surface adjuster according to claim 1, wherein the main body is formed in a disc shape.

The grindstone surface adjustment tool for a grindstone according to claim 2 , wherein a through hole is formed in a central portion of the disc-shaped main body.

4. The grindstone grinding surface adjuster according to claim 1 , wherein a sheet-shaped file is adhered to both surfaces of the main body, and the polished surface is formed by the sheet-shaped file.

4. The grindstone surface adjustment tool for a grindstone according to claim 2 , wherein a plurality of strip-shaped file files are radially attached to both surfaces of the main body, and the polishing surface is formed by the sheet-shaped files.

6. The grindstone grinding surface adjuster according to claim 1 , wherein the main body is made of a hard resin.

The grindstone according to claim 1, 2, 3, 4, 5 or 6 , wherein the curvature radius Ra is set in a range of 15000 mm ≤ Ra <35000 mm, and the curvature radius Rb is set in a range of 15000 mm <Rb ≤ 35000 mm. Abrasive surface adjuster.