JPS6195817A - Disc-shaped cutter - Google Patents
Disc-shaped cutterInfo
- Publication number
- JPS6195817A JPS6195817A JP21441784A JP21441784A JPS6195817A JP S6195817 A JPS6195817 A JP S6195817A JP 21441784 A JP21441784 A JP 21441784A JP 21441784 A JP21441784 A JP 21441784A JP S6195817 A JPS6195817 A JP S6195817A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- shaped
- disc
- tip portion
- cutter
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
- B23D35/001—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools cutting members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
、業 の利用 野
本発明は、円板状刃物、待に、管状金属体を切断する際
に使用される円板状刃物に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a disc-shaped knife, and particularly to a disc-shaped knife used for cutting a tubular metal body.
」１へ皮」
従来、この種の管状金属体を切断するための刃物は、一
般に、円形の盤状の形状を有しており、その周辺部分は
、所定の横断面形状を有するようにＶ字状にとがらされ
ている。すなわち、この種の円板状刃物は、その製作に
当たっては、上記のような輪郭を有するように刃物鋼な
どの材料から成型された刃物素材が、調質熱処理又は表
面硬化熱処−埋を受けた後、刃先が所要の項断面形状を
有するように研摩することにより打なわれている。この
場合、研摩される刃先の横断面形状は、その周辺全体に
渡って同一の連続的なものとされている。1. Conventional blades for cutting this type of tubular metal body generally have a circular disk shape, and the peripheral portion thereof has a V shape so as to have a predetermined cross-sectional shape. It is pointed in the shape of a letter. In other words, when manufacturing this type of disc-shaped cutlery, the cutter material, which is molded from a material such as cutter steel so as to have the above-mentioned profile, is subjected to tempering heat treatment or surface hardening heat treatment. After that, the cutting edge is ground and hammered so that it has the desired cross-sectional shape. In this case, the cross-sectional shape of the cutting edge to be polished is the same and continuous throughout its periphery.
また、このような形状を有する円板状刃物は、管状金属
体を切断する際には、管状金属体の外表面に、円板状刃
物の周辺部分の刃先を管状′に馬体の長手軸に対して直
角に当て、刃先を管状金属体の表面に向かって圧下の下
に、この表面に沿って転がしながら旋回させることによ
って、円周状の溝を形成し、この溝を漸次深くして行き
、ついに、溝の深さが管状金属体の厚さとなった時に、
切断が完了するようになっている。しかしながら、この
ような構成を有する円板状刃物により管状金属体を切断
する場合には、刃物の周辺部分の刃先が一様なｍ断面を
有しているので、比較的短時間内で刃先の全周が摩耗し
、切れ味が鈍化し、あるいは、刃こぼれを起こし、切断
効果が損なわれるという欠、はのあることは、良く知ら
れているところである。In addition, when cutting a tubular metal body with a disc-shaped knife having such a shape, the cutting edge of the peripheral part of the disc-shaped knife is attached to the outer surface of the tubular metal body in a tubular shape along the longitudinal axis of the horse's body. By pressing the cutting edge against the surface of the tubular metal body at right angles to the surface of the tubular metal body and rotating it while rolling it along this surface, a circumferential groove is formed, and this groove is gradually deepened. Finally, when the depth of the groove becomes the thickness of the tubular metal body,
The cutting is now complete. However, when cutting a tubular metal body with a disc-shaped knife having such a configuration, the cutting edge in the peripheral part of the knife has a uniform m cross section, so the cutting edge can be cut within a relatively short time. It is well known that there are disadvantages in which the entire circumference wears, dulling the cutting edge, or causing the blade to spill, impairing the cutting effect.
明が ゛ しようとする 題σ
そこで、本発明は、従来のものにおける上記のような欠
、直のない、長時間の切断にも酎え、しかも、切［能率
をも向上させることができる円板状刃物を得ることを、
その目的とするものである。Accordingly, the present invention has been proposed to provide a circular cutting method that can be used for long-time cutting with no defects or corrections as described above in the conventional method, and that can also improve cutting efficiency. To obtain a plate-shaped knife,
That is the purpose.
σを するための を
本発明は、この目的を達成するために、円板状刃物にお
いて、その周辺部分に形成される刃先部分に全周に渡り
、一様なピッチで且つ極めて小さな、あるいは、浅い切
り込みを設けて成る円板状刃物を特徴とするものである
。In order to achieve this objective, the present invention has a disc-shaped cutter with an extremely small or It is characterized by a disc-shaped blade with shallow cuts.
なお、この場合、切り込みの形状としては、円弧状の切
り欠きゃ、Ｖ字状の溝などが適当である。In this case, the appropriate shape of the cut is an arc-shaped cutout, a V-shaped groove, or the like.
友−１−１
以下、本発明を、その実施例を示す添付図面の！＠１〜
３図に基づいて説明する。Friend-1-1 Hereinafter, the present invention will be described with reference to the accompanying drawings showing embodiments thereof. @1~
This will be explained based on Figure 3.
まず、第１図は、本発明による円板状刃物１を縦断して
示す斜視図であるが、図に示すように、この円板状刃物
１は、円盤状のボス部分２と、その周辺部に一体に形成
された、横断面形状がほぼＶ字状である刃先部分３とか
ら構成されており、ボス部分２には、軸取り付けの用穴
４が同軸にあけられている。First, FIG. 1 is a perspective view showing a longitudinal section of a disc-shaped cutter 1 according to the present invention. As shown in the figure, this disc-shaped cutter 1 has a disc-shaped boss portion 2 and its surroundings A cutting edge portion 3 having a substantially V-shaped cross section is formed integrally with the boss portion 2, and a hole 4 for shaft attachment is coaxially bored in the boss portion 2.
ところで、刃先部分３の詳細は、例えば、第２図に拡大
して示しであるように、刃先部分３の全周に渡り、極め
て小さな円弧状の切り欠さ５が、一様なピッチで設けら
れることによって構成されている。なお、この切り欠き
５は、それぞれ、浅い円弧状の一様な形状のものである
ことが望ましい６
また、第３図は、本発明の他の実施例として、刃先部分
３の全周に、その先ｊ１部分の両側に、極めて小さなＶ
字状の溝６を一様なピッチで連続的に設けたものを示す
ものである。この場合、このＶ字状のｉ６は、浅く且つ
刃先部分３の周辺に両側に形成されたＶ字状のｍ６のた
めに形成されるＶ字状のくぼみ６１も、浅い方が望まし
い。By the way, the details of the cutting edge portion 3 include, for example, as shown in an enlarged view in FIG. It is composed of It is preferable that each of the notches 5 has a uniform shallow arcuate shape6.Furthermore, FIG. There is an extremely small V on both sides of the j1 part.
This figure shows a groove 6 in which the shape of a letter is continuously provided at a uniform pitch. In this case, it is desirable that the V-shaped i6 be shallow, and that the V-shaped recess 61 formed for the V-shaped m6 formed on both sides around the cutting edge portion 3 also be shallow.
兄８０）廟迷。Brother 80) Temple confusion.
以上のように、本発明においては、刃先部分３の周辺に
、極めて小さな円弧状の切り欠さ５ないしはＶ字状の溝
６などを一様なピッチで形成するものであるので、この
円板状刃物１を使用して管状金属体を切断する場合、円
板状刃物１の刃先部分３が管状金属体の外表面に加える
切り込み力は、刃先部分３の特殊の形状、すなわち、極
゛めて小さな円弧状の切り欠き５ないしはＶ字状の溝６
などのために、極めて大きなものとなり、刃先は容易に
管状金属体の壁の中に貫入し、従って、切断速度も高速
化されることとなる。As described above, in the present invention, extremely small arc-shaped notches 5 or V-shaped grooves 6 are formed at a uniform pitch around the cutting edge portion 3, so that this disc When cutting a tubular metal body using the disc-shaped knife 1, the cutting force applied by the cutting edge portion 3 of the disc-shaped knife 1 to the outer surface of the tubular metal body is controlled by the special shape of the cutting edge portion 3, that is, the cutting force applied to the outer surface of the tubular metal body is small arc-shaped notch 5 or V-shaped groove 6
For this reason, the cutting edge becomes extremely large, and the cutting edge easily penetrates into the wall of the tubular metal body, thus increasing the cutting speed.
また、刃先部分３の周辺に形成された切り欠き５ないし
はＶ字状の溝６などは、切断時に、管状金属体の表面へ
の１回ごとの貫入深さが、従来の円板状刃物の場合に比
較して深くなると共に刃面の横方向に加わる力に対して
は、刃先部分３の厚い像面において受けることとなるの
で、刃先部分３の微少な欠損、すなわち、刃こぼれなど
の発生を防止することができる。更に、このように、刃
こばれが防止されることにより、切断面は、良品質のも
のとなり、また、従来の円板状刃物を使用した場合に比
較して、刃物の交換のために必要とされる時間も大幅に
ｆｆ５滅することができるという優れた効果を、本発明
は発揮することができるものである。In addition, the notch 5 or V-shaped groove 6 formed around the cutting edge portion 3 has a depth of penetration into the surface of the tubular metal body each time during cutting, which is lower than that of a conventional disc-shaped knife. As the depth of the blade increases compared to the conventional case, the force applied in the lateral direction of the blade surface will be received by the thick image surface of the blade edge portion 3, which will prevent the occurrence of minute defects in the blade edge portion 3, such as blade spillage. can be prevented. Furthermore, by preventing the blade from fraying in this way, the cut surface is of good quality, and compared to the case of using a conventional disc-shaped blade, the cutting surface is less necessary for replacing the blade. The present invention can exhibit the excellent effect of significantly reducing the time required for ff5.
ｔＪ＆１図は、本発明による円板状刃物を示す縦断斜視
図、第２図は、その１実施例を示す一部分の拡大斜視図
、第３図は、その他の実施例を示す同様の図である。
１・・・円板状刃物、３・・・刃先部分、５・・・切り
欠き、６・・・Ｖ字状の溝。tJ & 1 is a vertical sectional perspective view showing a disk-shaped cutter according to the present invention, FIG. 2 is a partially enlarged perspective view showing one embodiment thereof, and FIG. 3 is a similar view showing another embodiment. . 1...Disc-shaped cutter, 3...Blade tip, 5...Notch, 6...V-shaped groove.
Claims (1)
分の全周に渡り一様なピッチで且つ極めて小さな、ある
いは、浅い切り込みを設けて成ることを特徴とする円板
状刃物。 ２、切り込みが、円弧状の切り欠きである特許請求の範
囲第１項記載の円板状刃物。 ３、切り込みが、Ｖ字状の溝である特許請求の範囲第１
項記載の円板状刃物。[Claims] 1. A circle characterized by a disc-shaped cutter having extremely small or shallow cuts formed at a uniform pitch over the entire circumference of the cutting edge portion formed around the cutter. Plate-shaped knife. 2. The disc-shaped cutter according to claim 1, wherein the notch is an arcuate notch. 3. Claim 1, wherein the cut is a V-shaped groove
Disc-shaped cutlery as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21441784A JPS6195817A (en) | 1984-10-15 | 1984-10-15 | Disc-shaped cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21441784A JPS6195817A (en) | 1984-10-15 | 1984-10-15 | Disc-shaped cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6195817A true JPS6195817A (en) | 1986-05-14 |
Family
ID=16655441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21441784A Pending JPS6195817A (en) | 1984-10-15 | 1984-10-15 | Disc-shaped cutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6195817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002083349A2 (en) * | 2001-04-16 | 2002-10-24 | Kent Myers | Portable pipe cutter apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS509188A (en) * | 1973-05-02 | 1975-01-30 |
-
1984
- 1984-10-15 JP JP21441784A patent/JPS6195817A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS509188A (en) * | 1973-05-02 | 1975-01-30 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002083349A2 (en) * | 2001-04-16 | 2002-10-24 | Kent Myers | Portable pipe cutter apparatus |
| WO2002083349A3 (en) * | 2001-04-16 | 2003-05-08 | Kent Myers | Portable pipe cutter apparatus |
| US6581499B2 (en) | 2001-04-16 | 2003-06-24 | Kent J. Myers | Automated pipe cutter tool box |
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