JPH0362190U - - Google Patents
Info
- Publication number
- JPH0362190U JPH0362190U JP12422489U JP12422489U JPH0362190U JP H0362190 U JPH0362190 U JP H0362190U JP 12422489 U JP12422489 U JP 12422489U JP 12422489 U JP12422489 U JP 12422489U JP H0362190 U JPH0362190 U JP H0362190U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- drilling
- welded
- recess
- drilling tube
- 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 11
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案の削孔用ビツトの一実施例を示
す正面図である。第２図は第１図の平面図である
。第３図は第１図の側面図である。第４図は第１
図のビツト本体を示す正面図である。第５図は第
２図の−線に沿う縦断面図である。第６図は
第２図の−線に沿う縦断面図である。第７図
は削孔管によりコンクリート基礎を削孔する状態
を示す縦断面図である。第８図は第７図において
摩耗した超硬材で削孔する状態を示す縦断面図で
ある。第９図は本考案の削孔用ビツトを削孔管に
溶着した状態を示す斜視図である。第１０図は第
９図の一部を拡大して示す正面図である。
主要な部分の符号の説明、３１……ビツト本体
、３５……凹部、３７……超硬材、３９……切削
面、４３……削孔用ビツト、４５……削孔管、Ａ
……削孔管の回転方向。
FIG. 1 is a front view showing an embodiment of the drilling bit of the present invention. FIG. 2 is a plan view of FIG. 1. FIG. 3 is a side view of FIG. 1. Figure 4 is the first
FIG. 3 is a front view showing the bit body shown in the figure. FIG. 5 is a longitudinal sectional view taken along the - line in FIG. 2. FIG. 6 is a longitudinal sectional view taken along the - line in FIG. 2. FIG. 7 is a longitudinal cross-sectional view showing a state in which a hole is drilled in a concrete foundation using a drilling pipe. FIG. 8 is a longitudinal sectional view showing a state in which a hole is drilled using the worn carbide material in FIG. 7. FIG. 9 is a perspective view showing a state in which the drilling bit of the present invention is welded to a drilling tube. FIG. 10 is an enlarged front view of a part of FIG. 9. Explanation of symbols of main parts, 31...Bit body, 35...Recess, 37...Carbide material, 39...Cutting surface, 43...Drilling bit, 45...Drilling tube, A
...Rotation direction of the drilling pipe.
Claims (1)
端側に凹部を形成し、この凹部に超硬材破砕片を
溶着してなることを特徴とする削孔用ビツト。 (2) ビツト本体に溶着される超硬材は、その切
削面が、削孔管の回転方向側に行くにつれて前記
削孔管側に傾斜している請求項１記載の削孔用ビ
ツト。[Claims for Utility Model Registration] (1) A drill bit characterized in that a recess is formed on the tip side of a bit body to be welded to the tip of a drilling tube, and crushed pieces of carbide material are welded to the recess. Bit for hole. (2) The drilling bit according to claim 1, wherein the cutting surface of the cemented carbide welded to the bit body is inclined toward the drilling tube as it goes toward the rotational direction of the drilling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989124224U JPH0726477Y2 (en) | 1989-10-24 | 1989-10-24 | Bit for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989124224U JPH0726477Y2 (en) | 1989-10-24 | 1989-10-24 | Bit for drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0362190U true JPH0362190U (en) | 1991-06-18 |
| JPH0726477Y2 JPH0726477Y2 (en) | 1995-06-14 |
Family
ID=31672157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989124224U Expired - Lifetime JPH0726477Y2 (en) | 1989-10-24 | 1989-10-24 | Bit for drilling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726477Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007321325A (en) * | 2006-05-31 | 2007-12-13 | Mieko Saito | Neckcloth with pocket |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4485705B2 (en) * | 2001-04-20 | 2010-06-23 | 株式会社タンガロイ | Drill bit and casing cutter |
| JP4485706B2 (en) * | 2001-04-24 | 2010-06-23 | 株式会社タンガロイ | Bi-directional drill bit and casing cutter |
| JP4514359B2 (en) * | 2001-04-26 | 2010-07-28 | 株式会社タンガロイ | Drilling bit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62176286U (en) * | 1986-04-25 | 1987-11-09 |
-
1989
- 1989-10-24 JP JP1989124224U patent/JPH0726477Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62176286U (en) * | 1986-04-25 | 1987-11-09 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007321325A (en) * | 2006-05-31 | 2007-12-13 | Mieko Saito | Neckcloth with pocket |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0726477Y2 (en) | 1995-06-14 |