JPS60154491U - cutter bit for excavation - Google Patents
cutter bit for excavationInfo
- Publication number
- JPS60154491U JPS60154491U JP4312284U JP4312284U JPS60154491U JP S60154491 U JPS60154491 U JP S60154491U JP 4312284 U JP4312284 U JP 4312284U JP 4312284 U JP4312284 U JP 4312284U JP S60154491 U JPS60154491 U JP S60154491U
- Authority
- JP
- Japan
- Prior art keywords
- excavation
- cutting edge
- cutter bit
- brazed
- support portion
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案掘削用のカッタービットにおける一実施
例を示す正面図、第２図はその平面図である。
２・・・・・・シャンク、３・・・・・・段部、４・・
・・・・刃先チップ、５・・・・・・支持部分、６・・
・・・・切刃部分、７・・・・・・掘削面。FIG. 1 is a front view showing an embodiment of the excavating cutter bit of the present invention, and FIG. 2 is a plan view thereof. 2...Shank, 3...Step, 4...
...Blade tip, 5...Support part, 6...
... Cutting blade part, 7 ... Excavation surface.
Claims (1)
チップ４がろう付けされるようにした掘削用のカッター
ビットにおいて、 前記刃先チップ４は、超硬合金からなる支持部分５と、
立方晶窒化硼素および／またはダイヤモンドを主成分と
した多結晶焼結体かららる切刃部分６とを備え、かつこ
の切刃部分６が前記支持部分５に対し、超高圧高温下で
焼結固着されるとともに、前記段部３内では複数個に分
割されて並列的にろう付けされ、しかもその掘削面７に
おけるすくい角θが一５°〜−１０６の負角に設定され
ることを特徴とする掘削用のカッターピッド。[Claims for Utility Model Registration] A cutter bit for excavation in which a cutting edge tip 4 is brazed into a stepped portion 3 provided at one end of a steel shank 2, wherein the cutting edge tip 4 is A support portion 5 made of hard metal;
A cutting edge portion 6 made of a polycrystalline sintered body mainly composed of cubic boron nitride and/or diamond, and this cutting edge portion 6 is sintered with respect to the support portion 5 under ultra-high pressure and high temperature. In addition to being fixed, it is divided into a plurality of parts and brazed in parallel within the step part 3, and the rake angle θ at the excavation surface 7 is set to a negative angle of 15° to -106°. Cutter pit for excavation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4312284U JPS60154491U (en) | 1984-03-26 | 1984-03-26 | cutter bit for excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4312284U JPS60154491U (en) | 1984-03-26 | 1984-03-26 | cutter bit for excavation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60154491U true JPS60154491U (en) | 1985-10-15 |
Family
ID=30554498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4312284U Pending JPS60154491U (en) | 1984-03-26 | 1984-03-26 | cutter bit for excavation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60154491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0312991U (en) * | 1989-06-19 | 1991-02-08 |
-
1984
- 1984-03-26 JP JP4312284U patent/JPS60154491U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0312991U (en) * | 1989-06-19 | 1991-02-08 |
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