JPS6395795U - - Google Patents
Info
- Publication number
- JPS6395795U JPS6395795U JP18760886U JP18760886U JPS6395795U JP S6395795 U JPS6395795 U JP S6395795U JP 18760886 U JP18760886 U JP 18760886U JP 18760886 U JP18760886 U JP 18760886U JP S6395795 U JPS6395795 U JP S6395795U
- Authority
- JP
- Japan
- Prior art keywords
- circumferential side
- tip
- outer circumferential
- inner circumferential
- chip
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 claims description 4
Landscapes
- Earth Drilling (AREA)
Description
第１図ないし第３図は本考案の一実施例を示す
図であつて、第１図は穿孔用ビツトを示す側面図
、第２図は第１図の方向矢視図、第３図は第２
図の方向矢視図、第４図および第５図は従来の
穿孔用ビツトの一例を示す図であつて、第４図は
その側面図、第５図は第４図の方向矢視図であ
る。
１……ビツト本体、２……チツプ、４……チツ
プ着座部、９……ビツト本体、１０……超硬チツ
プ（チツプ）、１２……チツプ着座部、１５……
段部、１５ａ……壁部、Ｏ……軸線。
1 to 3 are views showing one embodiment of the present invention, in which FIG. 1 is a side view showing a drilling bit, FIG. 2 is a view taken in the direction of the arrow in FIG. 1, and FIG. Second
4 and 5 are views showing an example of a conventional drilling bit, FIG. 4 is a side view thereof, and FIG. 5 is a view taken in the direction of FIG. 4. be. 1... Bit body, 2... Chip, 4... Chip seating part, 9... Bit body, 10... Carbide chip (chip), 12... Chip seating part, 15...
Stepped portion, 15a... Wall portion, O... Axis line.
Claims (1)
の先端部に、内周側から外周側へ向かつて延びる
チツプ着座部を形成し、このチツプ着座部にチツ
プを装着してなる穿孔用ビツトにおいて、上記チ
ツプ着座部の壁部に、内周側の部分が外周側の部
分に対して突出するように段部を設け、この段部
の外周側を向く壁部に上記チツプの内周側を向く
壁部を突き合わせたことを特徴とする穿孔用ビツ
ト。 In the drilling bit, a tip seating portion extending from the inner circumferential side to the outer circumferential side is formed at the tip of the bit body which is rotated around an axis, and a tip is attached to the tip seating portion. A stepped portion is provided on the wall of the chip so that the inner circumferential side protrudes from the outer circumferential side, and a wall portion facing the inner circumferential side of the chip is provided on the wall portion of the stepped portion facing the outer circumferential side. A drilling bit characterized by being butted together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18760886U JPH04150Y2 (en) | 1986-12-05 | 1986-12-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18760886U JPH04150Y2 (en) | 1986-12-05 | 1986-12-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6395795U true JPS6395795U (en) | 1988-06-21 |
| JPH04150Y2 JPH04150Y2 (en) | 1992-01-06 |
Family
ID=31138223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18760886U Expired JPH04150Y2 (en) | 1986-12-05 | 1986-12-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04150Y2 (en) |
-
1986
- 1986-12-05 JP JP18760886U patent/JPH04150Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04150Y2 (en) | 1992-01-06 |