JPH08155153A - Hand tool - Google Patents
Hand toolInfo
- Publication number
- JPH08155153A JPH08155153A JP6306448A JP30644894A JPH08155153A JP H08155153 A JPH08155153 A JP H08155153A JP 6306448 A JP6306448 A JP 6306448A JP 30644894 A JP30644894 A JP 30644894A JP H08155153 A JPH08155153 A JP H08155153A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- base material
- cemented carbide
- hand tool
- cutting edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B9/00—Blades for hand knives
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本願発明は、包丁や鉋など、切断
用あるいは研削用などの刃を備えたタイプの手工具に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand tool of a type having a blade for cutting or grinding such as a knife and a plane.
【０００２】[0002]
【従来の技術】従来、この種の手工具においては、いわ
ゆる切れ味の向上や使用寿命の長期化を図る手段とし
て、鉄製などの刃先部分に鋼を鍛造して接着したり、あ
るいは刃先部分に焼入れなどの熱処理を施すなどの手段
を採用し、刃先の硬度を高めていた。2. Description of the Related Art Conventionally, in this type of hand tool, as a means for improving so-called sharpness and prolonging the service life, steel is forged and adhered to the blade edge portion, or quenching is applied to the blade edge portion. The hardness of the cutting edge was increased by adopting such means as heat treatment.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の刃先に鋼を接着させる手段や、熱処理を施す手段で
は、未だその硬度に満足できるものではなく、比較的短
期間の工具使用によって刃こぼれを生じたり、あるいは
切れ味が低下するといった事態を生じていた。その結
果、従来では、砥石などを用いての刃先の研ぎ直し作
業、あるいは刃の交換作業を頻繁に行う必要が生じるな
ど、所望の作業を能率良く行うことができないという難
点を生じた。However, the above-mentioned conventional means for adhering steel to the cutting edge and the means for heat treatment are not yet satisfactory in its hardness, and the blade spillage is caused by using the tool for a relatively short period of time. There was a situation where it occurred or the sharpness deteriorated. As a result, conventionally, there has been a problem that the desired work cannot be efficiently performed, such as the necessity of frequently re-sharpening the blade edge with a grindstone or replacing the blade.
【０００４】また、上記従来の鍛造によって鉄製などの
刃先部分に鋼を接着する手段は、技術的に容易ではな
く、たとえば熟練者が手仕事で行っている実情がある。
したがって、量産が難しく、製造コストが高価になると
いう難点も生じていた。Further, the means for adhering steel to the blade edge portion made of iron or the like by the above-mentioned conventional forging is not technically easy, and for example, a skilled person manually performs it.
Therefore, mass production is difficult and manufacturing costs are high.
【０００５】本願発明は、このような事情のもとで考え
出されたものであって、刃の切れ味が短期間で低下する
といった難点を解消させて、手工具を用いた切断作業な
どの所望作業を効率よく行えるようにし、またその製造
も容易に行えるようにすることをその課題としている。The present invention was devised under such circumstances, and solves the problem that the sharpness of the blade deteriorates in a short period of time, and it is desirable to perform cutting work using a hand tool. The task is to make the work efficient and easy to manufacture.
【０００６】[0006]
【課題を解決するための手段】上記の課題を解決するた
め、本願発明では、次の技術的手段を講じている。In order to solve the above problems, the present invention takes the following technical means.
【０００７】すなわち、本願の請求項１に記載の発明
は、刃を構成する基材の先端部に、超硬合金製の刃先本
体がろう付けされて固着されていることを特徴としてい
る。That is, the invention according to claim 1 of the present application is characterized in that the blade tip body made of a cemented carbide is fixed by brazing to the tip portion of the base material forming the blade.
【０００８】上記請求項１に記載の発明に係る手工具
は、たとえば請求項２に記載のように、包丁、鉋、の
み、鉈、鎌、鋏、斧、クサビ、ナイフ、または彫刻刀と
して構成することができる。The hand tool according to the first aspect of the present invention is configured as a kitchen knife, a plane, a chisel, a barbecue, a sickle, a scissor, an ax, a wedge, a knife, or a chisel, for example, as described in the second aspect. can do.
【０００９】また、本願の請求項３に記載の発明は、上
記請求項１または請求項２に記載の手工具において、上
記基材の先端部には、刃の長手方向に沿って１または複
数の凹状部が設けられているとともに、この凹状部には
上記刃先本体の後部または後部に設けられた凸状部が嵌
入されており、かつ、上記基材の凹状部を構成する複数
の壁面部とこれら複数の壁面部に各々対面接触する刃先
本体の壁面部との各所は、これら各壁面部の相互間に介
在された接合材を介してろう付けされていることを特徴
としている。The invention according to claim 3 of the present application is the hand tool according to claim 1 or 2, wherein the tip portion of the substrate is one or more along the longitudinal direction of the blade. The concave part is provided, and the convex part provided at the rear part or the rear part of the cutting edge body is fitted into the concave part, and a plurality of wall surface parts constituting the concave part of the base material. Each of the plurality of wall surface portions and the wall surface portion of the blade body which face-to-face contact with the plurality of wall surface portions are brazed via a joining material interposed between the wall surface portions.
【００１０】[0010]
【発明の作用および効果】上記請求項１に記載の発明に
おいては、刃を構成する基材の先端部に超硬合金製の刃
先本体が固着されているために、刃先の硬度を高めるこ
とができ、従来の刃先を鋼製にしたものや、焼入れなど
の熱処理を施した鉄製などの刃よりも刃先硬度を高くす
ることができる。したがって、刃の切れ味が短期間で低
下したり、あるいは刃こぼれが安易に生じるといったこ
とを解消することができ、刃の研ぎ直し作業や刃の交換
作業などを頻繁に行う必要を無くすことができる。その
結果、切断作業などの手工具を用いた所望作業を長期間
にわたって能率良く行うことができるという格別な効果
が得られる。According to the invention described in claim 1, since the blade body made of cemented carbide is fixed to the tip of the base material forming the blade, the hardness of the blade can be increased. In addition, the hardness of the cutting edge can be made higher than that of a conventional blade made of steel or a blade made of iron that has been subjected to heat treatment such as quenching. Therefore, the sharpness of the blade is reduced in a short period of time, or it is possible to eliminate the occurrence of blade spillage easily, it is possible to eliminate the need to frequently re-blade the blade or replace the blade. . As a result, a special effect that a desired work using a hand tool such as a cutting work can be efficiently performed over a long period of time is obtained.
【００１１】また、上記超硬合金製の刃先本体は、刃を
構成する基材の先端部にろう付けにより固着された構造
であるから、基材に対する刃先本体の接合はたとえば銀
ろう材などの接合材を介して強固に行うことができ、刃
先本体の不用意な脱落などを適切に防止できる他、その
製造は、予め所望形状に形成した刃先本体を接合材を介
して基材の先端部に接触させた後に、この部位へ高周波
加熱を施すといった作業によって行うことができる。し
たがって、従来の鋼の鍛造作業などとは異なり、一連の
製造作業の容易化、ならびに量産化が図れ、製造コスト
を安価にできるという効果も得られる。Further, since the above-mentioned blade body made of cemented carbide has a structure in which it is fixed to the tip of the base material forming the blade by brazing, the blade body is joined to the base material by using, for example, a silver brazing material. It can be done firmly through the joining material, and it can appropriately prevent accidental detachment of the cutting edge body, and its manufacture is performed by using the joining material to form the cutting edge body that has been formed in a desired shape in advance. This can be done by the operation of applying high frequency heating to this site after the contact with. Therefore, unlike a conventional steel forging operation, a series of manufacturing operations can be facilitated, mass production can be achieved, and manufacturing costs can be reduced.
【００１２】請求項３に記載の発明においては、刃の基
材の先端部に刃の長手方向に沿って少なくとも１箇所以
上設けられた凹状部に、刃先本体の後部または後部に設
けられた凸状部が嵌入された上で、これら相互に嵌合し
て対面接触し合う基材の複数の壁面部と刃先本体の複数
の壁面部との各所が接合材を介してろう付けされている
ために、基材への刃先本体の嵌入作用によって基材に対
する刃先本体の接合強度を高めることができるばかり
か、基材に対して刃先本体がろう付けされる面積を大き
くとることも可能となる。したがって、刃先本体の接合
強度を一層大きくして、刃先本体の不当な脱落などを徹
底して防止できるという効果が得られる。In the invention according to claim 3, a concave portion provided at least at one or more locations along the longitudinal direction of the blade at the tip portion of the base material of the blade, and a convex portion provided at the rear portion or the rear portion of the blade body. Since the plurality of wall surface portions of the base material and the plurality of wall surface portions of the cutting edge body which are fitted to each other and face-to-face contact with each other are brazed through the joining material after the shape-shaped portion is fitted. In addition, not only the joining strength of the blade tip body to the base material can be increased by the action of fitting the blade tip body into the base material, but also the area where the blade tip body is brazed to the base material can be increased. Therefore, there is an effect that the joint strength of the blade body can be further increased and the blade body can be thoroughly prevented from being unjustly detached.
【００１３】[0013]
【実施例の説明】以下、本願発明の好ましい実施例を、
図面を参照しつつ具体的に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below.
A specific description will be given with reference to the drawings.
【００１４】図１は本願発明に係る手工具Ａの一例を示
す側面図、図２はそのＸ１−Ｘ１線一部省略拡大断面図
である。この手工具Ａは、料理などに用いられる包丁と
して構成されたものである。この包丁Ａの刃１は、その
主要部をなすステンレス製などの基材１０の先端部に、
超硬合金製の刃先本体２がろう付けされて固着されたも
のである。なお、上記刃１の一端には木製などの柄４が
取付けられている。FIG. 1 is a side view showing an example of a hand tool A according to the present invention, and FIG. 2 is an enlarged sectional view of the X1-X1 line partially omitted. This hand tool A is configured as a kitchen knife used for cooking or the like. The blade 1 of this kitchen knife A is attached to the tip of a base material 10 made of stainless steel, etc.
The blade body 2 made of cemented carbide is brazed and fixed. A handle 4 made of wood or the like is attached to one end of the blade 1.
【００１５】上記刃先本体２は、超硬合金製であるが、
本願発明でいう超硬合金とは、狭義の超硬合金はもとよ
り、サーメット、被覆超硬合金、超微粒子超硬合金をも
含む広義の概念である。すなち、狭義の超硬合金は、金
属および硬質の金属化合物からなり、その硬質相中の主
成分が炭化タングステンである。サーメットは、金属お
よび硬質の金属化合物からなり、その硬質相中の主成分
がチタン、タンタルの炭化物、炭窒化物および窒化物で
あって、炭化タングステンの成分が少ないものである。
被覆超硬合金は、上記した狭義の超硬合金の表面に、炭
化物、窒化物（炭化チタン，窒化チタン，炭窒化チタン
など）、酸化物（酸化アルミ）などを１層または多層に
化学的または物理的に密着させたものである。超微粒子
超硬合金は、金属および硬質の金属化合物からなり、そ
の硬質相中の主成分が炭化タングステンであり、硬質相
粒の平均粒径が１μｍ以下のものである。The cutting edge body 2 is made of cemented carbide,
The cemented carbide in the present invention is a broad concept including not only cemented carbide in a narrow sense, but also cermet, coated cemented carbide, and ultrafine grained cemented carbide. That is, the cemented carbide in a narrow sense is composed of a metal and a hard metal compound, and the main component in the hard phase is tungsten carbide. Cermet is composed of a metal and a hard metal compound, and the main components in the hard phase are titanium, tantalum carbide, carbonitride and nitride, and the content of tungsten carbide is small.
The coated cemented carbide is a single or multi-layered structure of carbide, nitride (titanium carbide, titanium nitride, titanium carbonitride, etc.), oxide (aluminum oxide), etc. on the surface of the above-mentioned narrowly defined cemented carbide. It is a physical contact. The ultrafine particle cemented carbide is composed of a metal and a hard metal compound, the main component of the hard phase of which is tungsten carbide, and the hard phase grains have an average grain size of 1 μm or less.
【００１６】本実施例においては、上記刃先本体２の具
体例として、たとえは東芝タンガロイ製の鉱山工具用の
品番ＥＮ３の超硬材（ビッカース硬さ１５００Ｎ／ｍｍ
2 程度）が適用されている。この刃先本体２は、刃１の
切っ先１５から顎１５ａにわたる刃渡りの全長を占める
細長な形状に形成されており、またその先端部は切れ味
が良好となるように鋭利な断面形状に研磨されている。In the present embodiment, as a specific example of the cutting edge body 2, for example, a cemented carbide material of the product number EN3 for mining tools manufactured by Toshiba Tungaloy (Vickers hardness 1500 N / mm
2 ) is applied. The cutting edge body 2 is formed in an elongated shape that occupies the entire length of the blade extending from the cutting edge 15 of the blade 1 to the jaw 15a, and the tip portion thereof is ground to have a sharp cross section so as to have a good sharpness. .
【００１７】図２に示すように、上記基材１０の先端部
には、刃１の長手方向に沿う凹状部１１が一連に形成さ
れているとともに、この凹状部１１には上記刃先本体２
の後部にこの刃先本体２の長手方向に沿って一連に形成
された凸状部２１が嵌入されている。また、これら基材
１０と刃先本体２とは、基材１０の先端面１２ａ，１２
ａと刃先本体２の後端面２２ａ，２２ａとの相互間に銀
ろう材などの接合材３が介在されているだけではなく、
上記基材１０の凹状部１１を構成する複数の壁面部１１
ａ〜１１ｃと刃先本体２の凸状部２１を構成する複数の
壁面部２３ａ〜２３ｃとの各相互間にも接合材３が介在
され、これら相互に対面する壁面部の各所が相互にろう
付けされている。As shown in FIG. 2, a concave portion 11 extending in the longitudinal direction of the blade 1 is formed in series at the tip portion of the base material 10, and the concave portion 11 has the cutting edge body 2 formed therein.
A convex portion 21 formed in series along the longitudinal direction of the cutting edge body 2 is fitted in the rear portion. In addition, the base material 10 and the cutting edge body 2 are connected to the tip surfaces 12 a, 12 of the base material 10.
Not only is the joining material 3 such as a silver brazing material interposed between the a and the rear end surfaces 22a, 22a of the blade body 2,
A plurality of wall surface portions 11 forming the concave portion 11 of the base material 10
The bonding material 3 is also interposed between each of the a to 11c and the plurality of wall surface portions 23a to 23c forming the convex portion 21 of the blade body 2, and the respective wall surface portions facing each other are brazed to each other. Has been done.
【００１８】上記包丁Ａの製造方法の一例としては、ま
ず刃１の主要部をなす基材１０の先端部に凹状部１１を
形成した後に、この基材１０の先端部に凸状部２１を有
する超硬合金製の刃先本体２をろう付けする。この場
合、基材１０の凹状部１１に刃先本体２の凸状部２１を
嵌入させることにより、基材１０に対する刃先本体２の
位置決めが図れるため、たとえば基材１０の中心と刃先
本体２の中心とを正確に一致させた状態でのろう付けが
行える。次いで、このろう付けが終了した後には、刃先
本体２の両側面２４，２４などに適宜研磨加工を施し、
刃先を鋭利にすればよい。As an example of the method of manufacturing the knife A, first, a concave portion 11 is formed at the tip of the base material 10 forming the main part of the blade 1, and then a convex portion 21 is formed at the tip of the base material 10. The blade body 2 made of cemented carbide is brazed. In this case, by fitting the convex portion 21 of the blade body 2 into the concave portion 11 of the base material 10, the blade body 2 can be positioned with respect to the base material 10. Therefore, for example, the center of the base material 10 and the center of the blade body 2 can be aligned. Brazing can be performed with and exactly matched. Next, after this brazing is completed, both side surfaces 24, 24 of the blade body 2 are appropriately polished,
The cutting edge should be sharp.
【００１９】なお、上記ろう付けは、基材１０の先端部
に接合材３を介して刃先本体２を接触させた後に、この
部位をたとえば高周波加熱することによって容易に行う
ことが可能である。また、凸状部２１を備えた刃先本体
２の製造は、粉末冶金法を用いればよい。この方法は、
炭化タングステンなどの超硬合金の原料粉末をアトライ
ダーなどを用いて混合、粉砕した後に、これらにパラフ
ィンなどの潤滑材を加えてプレス成形を行い、これを１
４００°Ｃ前後の真空中で焼結する方法である。このよ
うな成形法によれば、刃先本体２を基材１０の先端部の
形状に対応した所定の形状に形成する作業が容易であ
る。The brazing can be easily carried out by bringing the tip body 2 into contact with the tip of the base material 10 via the bonding material 3 and then heating this site, for example, by high frequency heating. Moreover, the powder metallurgy method may be used to manufacture the blade main body 2 having the convex portion 21. This method
Cemented carbide raw material powder such as tungsten carbide is mixed and pulverized using an attrider, etc., and then a lubricant such as paraffin is added to these and press-molded.
This is a method of sintering in a vacuum at about 400 ° C. According to such a molding method, the work of forming the cutting edge body 2 into a predetermined shape corresponding to the shape of the tip portion of the base material 10 is easy.
【００２０】上記構成の包丁Ａにおいては、刃１の刃先
が、たとえばビッカース硬さが１５００Ｎ／ｍｍ2 程度
の超硬合金製の刃先本体２によって構成されているため
に、その刃先強度が大きく、いわゆる切れ味が良好とな
り、しかもその切れ味が短期間の使用によって即座に悪
化することもなくなり、その使用寿命が長くなる。ま
た、刃１の刃先がたとえば壁面や金属物などに強く接触
した場合であっても、容易に刃こぼれが生じるようなこ
ともない。したがって、刃１の研ぎ直しなどを頻繁に行
う必要もなく、使い勝手が良好となる。In the knife A having the above structure, since the blade edge of the blade 1 is constituted by the blade body 2 made of a cemented carbide having a Vickers hardness of about 1500 N / mm 2 , the blade strength is large, The so-called sharpness is improved, and the sharpness is not immediately deteriorated by short-term use, and the service life is extended. Further, even if the blade tip of the blade 1 comes into strong contact with, for example, a wall surface or a metal object, the blade is not easily spilled. Therefore, it is not necessary to frequently re-sharpen the blade 1 and the usability is improved.
【００２１】また、上記刃先本体２はろう付けによって
刃１の基材１０の先端部に固着されているために、その
固着強度が強く、刃先本体２が基材１０から容易に脱落
する虞れを無くすことができる。とくに、本実施例にお
いては、刃先本体２の後部の凸状部２１を基材１０の凹
状部１１に嵌入させて、基材１０の複数の壁面部１１ａ
〜１１ｃとこれに対面する刃先本体２の複数の壁面部２
３ａ〜２３ｃとの各所においてろう付けを行っているた
めに、ろう付け面積を大きくとれ、基材１０に対する刃
先本体２の接合強度をより大きくし、刃先本体２の不用
意な脱落を一層徹底して防止できることとなる。Further, since the cutting edge body 2 is fixed to the tip portion of the base material 10 of the blade 1 by brazing, the fixing strength is strong and the cutting edge body 2 may easily fall off the base material 10. Can be eliminated. In particular, in this embodiment, the convex portion 21 at the rear portion of the blade body 2 is fitted into the concave portion 11 of the base material 10 to form a plurality of wall surface portions 11a of the base material 10.
~ 11c and a plurality of wall surface portions 2 of the cutting edge body 2 facing this
3a to 23c are brazed at various places, a large brazing area can be obtained, the joint strength of the blade body 2 to the base material 10 can be made larger, and the inadvertent detachment of the blade body 2 can be further thoroughly performed. Can be prevented.
【００２２】なお、上記実施例では、刃１の基材１０に
溝状の凹状部１１を形成し、この凹状部１１に刃先本体
２の後部に形成された凸状部２１を嵌入させているが、
本願発明はこれに限定されない。本願発明では、たとえ
ば上記凹状部１１を基材１０に複数列設けて、これら複
数列の凹状部１１へ刃先本体２の後部に形成された複数
列の凸状部２１を各々嵌入させるようにしてもよい。In the above embodiment, the groove-shaped concave portion 11 is formed in the base material 10 of the blade 1, and the convex portion 21 formed in the rear portion of the blade body 2 is fitted into the concave portion 11. But,
The present invention is not limited to this. In the present invention, for example, a plurality of rows of the concave portions 11 are provided on the base material 10, and the plurality of rows of the convex portions 21 formed at the rear portion of the blade body 2 are fitted into the plurality of rows of the concave portions 11, respectively. Good.
【００２３】また、本願発明では、たとえば図３に示す
ように、刃１の基材１０の一側面に断面切欠状の凹状部
１１Ａを形成し、この凹状部１１Ａに刃先本体２の後部
側を嵌入させるようにしてもよい。このような構造の場
合にも、基材１０の凹状部１１Ａを構成する壁面部１１
ｄ，１１ｅとこれらに対面接触する刃先本体２の壁面部
２３ｄ、２３ｅとの各相互間に接合材３を介在させて、
ろう付け面積を大きくとることが可能である。このよう
に基材１０の一側面に断面切欠状の凹状部１１Ａを形成
した構造では、凹状部１１Ａを形成する作業が、図２で
説明した基材１０の先端面に溝状の凹状部１１を形成す
る作業よりも容易であり、刃先の幅Ｓが小さい場合にと
くに有意義である。Further, in the present invention, as shown in FIG. 3, for example, a concave portion 11A having a notched cross section is formed on one side surface of the base material 10 of the blade 1, and the rear portion side of the blade tip body 2 is formed in the concave portion 11A. You may make it insert. Also in the case of such a structure, the wall surface portion 11 that constitutes the concave portion 11A of the base material 10
d, 11e and the wall surface portions 23d, 23e of the cutting edge body 2 that are in face-to-face contact with each other, with the joining material 3 interposed therebetween,
A large brazing area can be taken. In the structure in which the concave portion 11A having a cutout cross section is formed on one side surface of the base material 10 as described above, the work of forming the concave portion 11A is performed by forming the groove-shaped concave portion 11 on the tip surface of the base material 10 described with reference to FIG. It is easier than the work of forming the groove and is particularly meaningful when the width S of the cutting edge is small.
【００２４】さらに、本願発明は、図４に示すように、
刃１の基材１０に凹状部などを一切設けることなく、基
材１０の平坦な先端面１２と刃先本体２の平坦な後端面
２２とを接合材３を介して相互に対面させることによ
り、これらのろう付け固着を行ってもよい。このよう
に、本願発明では、基材１０に対して刃先本体２をろう
付けするための具体的な手段は種々に設計変更自在であ
る。Further, according to the present invention, as shown in FIG.
By providing the flat front end surface 12 of the base material 10 and the flat rear end surface 22 of the blade tip body 2 to face each other through the bonding material 3 without providing any concave portion on the base material 10 of the blade 1, These brazing and fixing may be performed. Thus, in the present invention, the design of the specific means for brazing the blade tip body 2 to the base material 10 can be changed in various ways.
【００２５】また、上記した実施例では、本願発明に係
る手工具を包丁Ａとして構成した場合を一例として説明
したが、本願発明はこれに限定されず、以下のように様
々な種類の手工具として構成することが可能である。Further, in the above embodiment, the case where the hand tool according to the present invention is configured as the kitchen knife A has been described as an example, but the present invention is not limited to this, and various kinds of hand tools are as follows. Can be configured as.
【００２６】すなわち、図５（ａ）は鉈Ａａとして構成
した場合の一例を示す側面図、同図（ｂ）はそのＸ２−
Ｘ２線要部拡大断面図である。この鉈Ａａは、刃１Ａを
構成する鉄製などの基材１０Ａの先端部に、その長手方
向に沿って超硬合金製の刃先本体２Ａをろう付けしたも
のであり、その基本的な構成は、先の実施例で説明した
包丁Ａと共通している。この鉈Ａａの場合には、刃１Ａ
の全体の厚みが比較的大きく、刃先本体２の厚みＳａを
大きくとることができる。したがって、同図（ｂ）に示
すように、基材１０Ａに設けた凹状部１１に刃先本体２
Ａの凸状部２１を嵌入させる構造を採用することがで
き、刃先本体２Ａの接着強度を非常に大きくすることが
可能である。That is, FIG. 5 (a) is a side view showing an example of the case where it is configured as a hook Aa, and FIG. 5 (b) is its X2-.
It is an X2 line principal part expanded sectional view. This barb Aa is obtained by brazing a blade body 2A made of cemented carbide along the longitudinal direction to the tip of a base material 10A made of iron or the like that constitutes the blade 1A, and its basic configuration is: It is common with the kitchen knife A described in the previous embodiment. In the case of this scale Aa, the blade 1A
The overall thickness of the blade is relatively large, and the thickness Sa of the blade body 2 can be increased. Therefore, as shown in FIG. 2B, the blade body 2 is formed in the concave portion 11 provided on the base material 10A.
A structure in which the A-shaped convex portion 21 is fitted can be adopted, and the adhesive strength of the blade tip body 2A can be made extremely large.
【００２７】図６（ａ）はナイフＡｂとして構成した場
合の一例を示す側面図、同図（ｂ）はそのＸ３−Ｘ３線
要部拡大断面図である。このナイフＡｂの刃１Ｂの構成
も、上述した包丁Ａや鉈Ａａの刃１，１Ａと同様であ
り、鉄などの金属製の基材１０Ｂの先端部に沿って超硬
合金製の刃先本体２Ｂが接合材３を介してろう付けされ
ている。このナイフＡｂの製作コストを安価にしたい場
合には、同図（ｂ）に示すように構成の簡易な接合構造
によって基材１０Ｂに刃先本体２Ｂを接合する手段を採
用すればよい。FIG. 6 (a) is a side view showing an example of the structure of the knife Ab, and FIG. 6 (b) is an enlarged sectional view of an essential part of the X3-X3 line. The configuration of the blade 1B of the knife Ab is similar to that of the blades 1 and 1A of the knife A and the knife Aa described above, and the blade body 2B made of cemented carbide is provided along the tip of the base material 10B made of metal such as iron. Are brazed via the bonding material 3. In order to reduce the manufacturing cost of the knife Ab, a means for joining the blade tip body 2B to the base material 10B by a simple joining structure as shown in FIG.
【００２８】図７（ａ）は鋏Ａｃとして構成した場合の
一例を示す側面図、同図（ｂ）はそのＸ４−Ｘ４線断面
図である。この鋏Ａｃでは、一対の刃１Ｃ，１Ｃの相互
に対向し合う基材１０Ｃ，１０Ｃの各先端部に超硬合金
製の刃先本体２Ｃ，２Ｃがろう付けされている。なお、
本願発明はたとえば図８に示すようなタイプの鋏Ａｄと
して構成してもよいことは勿論であり、この場合にも一
対の刃１Ｄ，１Ｄの相互に対向し合う基材１０Ｄ，１０
Ｄの各先端部に超硬合金製の刃先本体２Ｄ，２Ｄがろう
付けされている。FIG. 7A is a side view showing an example in the case of being constructed as scissors Ac, and FIG. 7B is a sectional view taken along line X4-X4 thereof. In this scissor Ac, cemented carbide blade tip bodies 2C, 2C are brazed to the respective tips of the base materials 10C, 10C of the pair of blades 1C, 1C facing each other. In addition,
Of course, the present invention may be configured as scissors Ad of the type as shown in FIG. 8, for example, and in this case as well, the pair of blades 1D, 1D are opposed to each other in the base material 10D, 10D.
Blade tip bodies 2D, 2D made of cemented carbide are brazed to the respective tip portions of D.
【００２９】図９ないし図１５は、上記以外の手工具の
具体例を示し、図９は木工用の鉋の刃１Ｅ、図１０はの
みＡｆ、図１１はクサビＡｇ、図１２は彫刻刀Ａｈ、図
１３は斧Ａｉ、図１４は材木の切断や打ち払いなどに用
いられるバチＡｊ、図１５は鎌Ａｋを示す説明図であ
る。これらは、何れも刃１Ｅ〜１Ｋの主要部を構成する
基材１０Ｅ〜１０Ｋの先端部に、超硬合金製の刃先本体
２Ｅ〜２Ｋを接合材３を介してろう付けした構成であ
る。これら各図（ｂ）には、各手工具１Ｅ〜１Ｋにおい
て、基材１０Ｅ〜１０Ｋに対する刃先本体２Ｅ〜２Ｋの
接合構造の一例を図示しているが、本願発明は決してこ
のような接合構造に限定されない。9 to 15 show specific examples of hand tools other than those described above. FIG. 9 is a planer blade 1E for woodworking, FIG. 10 is Af only, FIG. 11 is a wedge Ag, and FIG. 12 is a chisel Ah. 13 is an explanatory view showing an ax Ai, FIG. 14 is a bee Aj used for cutting and smashing timber, and FIG. 15 is a sickle Ak. Each of these has a configuration in which the blade tip bodies 2E to 2K made of cemented carbide are brazed via the bonding material 3 to the tips of the base materials 10E to 10K that form the main part of the blades 1E to 1K. In each of these drawings (b), in each hand tool 1E to 1K, an example of a joint structure of the cutting edge bodies 2E to 2K with respect to the base materials 10E to 10K is illustrated, but the present invention is never such a joint structure. Not limited.
【００３０】上記した具体例から理解されるように、本
願発明は刃を備えたタイプの手工具であれば、その種類
を問わず適用することが可能である。したがって、上記
以外の手工具に本願発明を適用しても無論構わない。ま
た、刃の用途も狭義の切断用途に限定されず、所望の部
位への打ち込み用の刃、研削用の刃、研磨用の刃などで
あっても構わない。As can be understood from the above-described specific examples, the present invention can be applied to any type of hand tool provided with a blade regardless of its type. Therefore, it goes without saying that the present invention may be applied to hand tools other than the above. Further, the use of the blade is not limited to the cutting use in a narrow sense, and may be a blade for driving into a desired portion, a blade for grinding, a blade for polishing, or the like.
【００３１】その他、本願発明に係る手工具は各部の具
体的な構成は種々に設計変更自在である。Besides, in the hand tool according to the present invention, the specific construction of each part can be variously changed in design.
【図１】本願発明に係る手工具の一例を示す側面図。FIG. 1 is a side view showing an example of a hand tool according to the present invention.
【図２】図１のＸ１−Ｘ１線一部省略拡大断面図。FIG. 2 is an enlarged cross-sectional view with a part of line X1-X1 omitted in FIG.
【図３】本願発明に係る手工具の基材に対する刃先本体
の接合構造の他の例を示す要部拡大断面図。FIG. 3 is an enlarged cross-sectional view of main parts showing another example of the joining structure of the cutting edge body to the base material of the hand tool according to the present invention.
【図４】本願発明に係る手工具の基材に対する刃先本体
の接合構造の他の例を示す要部拡大断面図。FIG. 4 is an enlarged sectional view of an essential part showing another example of the joining structure of the cutting edge body to the base material of the hand tool according to the present invention.
【図５】（ａ）は本願発明に係る手工具の他の例を示す
側面図、（ｂ）はそのＸ２−Ｘ２線要部拡大断面図。FIG. 5A is a side view showing another example of the hand tool according to the present invention, and FIG. 5B is an enlarged cross-sectional view of the main part of the X2-X2 line.
【図６】（ａ）は本願発明に係る手工具の他の例を示す
側面図、（ｂ）はそのＸ３−Ｘ３線要部拡大断面図。6A is a side view showing another example of the hand tool according to the present invention, and FIG. 6B is an enlarged cross-sectional view of the main part of the X3-X3 line.
【図７】（ａ）は本願発明に係る手工具の他の例を示す
側面図、（ｂ）はそのＸ４−Ｘ４線要部拡大断面図。FIG. 7A is a side view showing another example of the hand tool according to the present invention, and FIG. 7B is an enlarged cross-sectional view of the main part of the X4-X4 line.
【図８】本願発明に係る手工具の他の例を示す側面図。FIG. 8 is a side view showing another example of the hand tool according to the present invention.
【図９】（ａ）は本願発明に係る手工具の他の例を示す
正面図、（ｂ）はそのＸ５−Ｘ５線要部拡大断面図。FIG. 9A is a front view showing another example of the hand tool according to the present invention, and FIG. 9B is an enlarged cross-sectional view of the main part of the X5-X5 line.
【図１０】（ａ）は本願発明に係る手工具の他の例を示
す斜視図、（ｂ）はそのＸ６−Ｘ６線要部拡大断面図。10A is a perspective view showing another example of the hand tool according to the present invention, and FIG. 10B is an enlarged cross-sectional view of the main part of the X6-X6 line of FIG.
【図１１】（ａ）は本願発明に係る手工具の他の例を示
す斜視図、（ｂ）はそのＸ７−Ｘ７線要部拡大断面図。FIG. 11A is a perspective view showing another example of the hand tool according to the present invention, and FIG. 11B is an enlarged cross-sectional view of the main part of the X7-X7 line.
【図１２】（ａ）は本願発明に係る手工具の他の例を示
す斜視図、（ｂ）はそのＸ８−Ｘ８線要部拡大断面図。FIG. 12 (a) is a perspective view showing another example of the hand tool according to the present invention, and FIG. 12 (b) is an enlarged sectional view of a main part of the X8-X8 line.
【図１３】（ａ）は本願発明に係る手工具の他の例を示
す斜視図、（ｂ）はそのＸ９−Ｘ９線要部拡大断面図。FIG. 13A is a perspective view showing another example of the hand tool according to the present invention, and FIG. 13B is an enlarged cross-sectional view of the main part of the X9-X9 line.
【図１４】（ａ）は本願発明に係る手工具の他の例を示
す斜視図、（ｂ）はそのＸ１０−Ｘ１０線要部拡大断面
図。FIG. 14A is a perspective view showing another example of the hand tool according to the present invention, and FIG. 14B is an enlarged sectional view of a main part of the X10-X10 line.
【図１５】（ａ）は本願発明に係る手工具の他の例を示
す斜視図、（ｂ）はそのＸ１１−Ｘ１１線要部拡大断面
図。FIG. 15A is a perspective view showing another example of the hand tool according to the present invention, and FIG. 15B is an enlarged cross-sectional view of the main part of the X11-X11 line thereof.
１，１Ａ〜１Ｋ 刃 ２，２Ａ〜２Ｋ 刃先本体 ３ 接合材 １１ 凹状部 １１ａ〜１１ｅ 壁面部 ２１ 凸状部 ２３ａ〜２３ｅ 壁面部 Ａ，Ａａ〜Ａｋ 手工具 1, 1A to 1K blade 2, 2A to 2K blade tip body 3 bonding material 11 concave portion 11a to 11e wall surface portion 21 convex portion 23a to 23e wall surface portion A, Aa to Ak hand tool
Claims (3)
製の刃先本体がろう付けされて固着されていることを特
徴とする、手工具。1. A hand tool, characterized in that a blade body made of a cemented carbide is fixed to the tip of a base material forming the blade by brazing.
鎌、鋏、斧、クサビ、ナイフ、または彫刻刀である、請
求項１に記載の手工具。2. The hand tool is a kitchen knife, a plane, a chisel, a plane,
The hand tool according to claim 1, which is a sickle, scissors, an ax, a wedge, a knife, or a chisel.
沿って１または複数の凹状部が設けられているととも
に、この凹状部には上記刃先本体の後部または後部に設
けられた凸状部が嵌入されており、かつ、 上記基材の凹状部を構成する複数の壁面部とこれら複数
の壁面部に各々対面接触する刃先本体の壁面部との各所
は、これら各壁面部の相互間に介在された接合材を介し
てろう付けされていることを特徴とする、請求項１また
は請求項２に記載の手工具。3. The base member is provided with one or a plurality of concave portions along the longitudinal direction of the blade, and the concave portions are provided at the rear portion or the rear portion of the blade body. The convex portion is fitted, and each of the plurality of wall surface portions that form the concave portion of the base material and the wall surface portion of the blade body that face-to-face contact with the plurality of wall surface portions are The hand tool according to claim 1 or 2, wherein the hand tool is brazed via a joining material interposed therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6306448A JPH08155153A (en) | 1994-12-09 | 1994-12-09 | Hand tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6306448A JPH08155153A (en) | 1994-12-09 | 1994-12-09 | Hand tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08155153A true JPH08155153A (en) | 1996-06-18 |
Family
ID=17957128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6306448A Pending JPH08155153A (en) | 1994-12-09 | 1994-12-09 | Hand tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08155153A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1661660A1 (en) * | 2004-11-24 | 2006-05-31 | Lutz Industria S.A. | Blade and method of manufacturing the same |
| JP2008259857A (en) * | 2007-04-12 | 2008-10-30 | Kai Usa Ltd Dba Kershaw Knives | Composite knife blade |
| WO2016208646A1 (en) * | 2015-06-22 | 2016-12-29 | 京セラ株式会社 | Cutter |
| FR3038859A1 (en) * | 2015-07-16 | 2017-01-20 | Lacquemant Dominique Albert | BLADE BODY AND CUTTING PART FOR KNIFE AND CORRESPONDING KNIFE |
| WO2021002416A1 (en) * | 2019-07-03 | 2021-01-07 | 日本特殊陶業株式会社 | Kitchen knife and blade |
-
1994
- 1994-12-09 JP JP6306448A patent/JPH08155153A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1661660A1 (en) * | 2004-11-24 | 2006-05-31 | Lutz Industria S.A. | Blade and method of manufacturing the same |
| JP2008259857A (en) * | 2007-04-12 | 2008-10-30 | Kai Usa Ltd Dba Kershaw Knives | Composite knife blade |
| JP2011189191A (en) * | 2007-04-12 | 2011-09-29 | Kai Usa Ltd Dba Kershaw Knives | Knife blade and method of manufacturing the same |
| WO2016208646A1 (en) * | 2015-06-22 | 2016-12-29 | 京セラ株式会社 | Cutter |
| JP6194437B2 (en) * | 2015-06-22 | 2017-09-06 | 京セラ株式会社 | Knife |
| JPWO2016208646A1 (en) * | 2015-06-22 | 2017-09-14 | 京セラ株式会社 | Knife |
| CN107428014A (en) * | 2015-06-22 | 2017-12-01 | 京瓷株式会社 | Cutter |
| US20180050434A1 (en) * | 2015-06-22 | 2018-02-22 | Kyocera Corporation | Cutter |
| US10730193B2 (en) | 2015-06-22 | 2020-08-04 | Kyocera Corporation | Cutter |
| FR3038859A1 (en) * | 2015-07-16 | 2017-01-20 | Lacquemant Dominique Albert | BLADE BODY AND CUTTING PART FOR KNIFE AND CORRESPONDING KNIFE |
| WO2021002416A1 (en) * | 2019-07-03 | 2021-01-07 | 日本特殊陶業株式会社 | Kitchen knife and blade |
| JPWO2021002416A1 (en) * | 2019-07-03 | 2021-09-13 | 日本特殊陶業株式会社 | Kitchen knives and blades |
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