JPH0336085U - - Google Patents
Info
- Publication number
- JPH0336085U JPH0336085U JP9589389U JP9589389U JPH0336085U JP H0336085 U JPH0336085 U JP H0336085U JP 9589389 U JP9589389 U JP 9589389U JP 9589389 U JP9589389 U JP 9589389U JP H0336085 U JPH0336085 U JP H0336085U
- Authority
- JP
- Japan
- Prior art keywords
- concrete structures
- chip
- diamond
- bit
- core
- 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
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案の第１実施例を示す正面図、第
２図は本考案の第２実施例を示す正面図、第３図
ないし第５図は本考案のチツプ配列例を示すもの
で、第３図は負荷断面積５０％減のチツプ配列図
、第４図は負荷断面積３３％減のチツプ配列図、
第５図は負荷断面積２５％減のチツプ配列図、第
６図は異形チツプを用いたチツプ配列図、第７図
は負荷断面積を５０％以上減少させた一例を示す
正面図、第８図は従来のコアビツトの一例を示す
正面図、第９図は従来のコアビツトの他の例を示
す正面図である。
１０……コアビツト、１１……ビツト本体（筒
体）、１２，１２´……ダイヤモンドチツプ、１
３，１３´……焼結チツプ。
FIG. 1 is a front view showing a first embodiment of the present invention, FIG. 2 is a front view showing a second embodiment of the present invention, and FIGS. 3 to 5 show examples of chip arrangement of the present invention. , Fig. 3 is a chip arrangement diagram with a 50% reduction in load cross section, Fig. 4 is a chip arrangement diagram with a 33% reduction in load cross section,
Figure 5 is a chip arrangement diagram with a load cross-sectional area reduced by 25%, Figure 6 is a chip arrangement diagram using irregularly shaped chips, Figure 7 is a front view showing an example where the load cross-sectional area is reduced by more than 50%, and Figure 8 The figure is a front view showing an example of a conventional core bit, and FIG. 9 is a front view showing another example of a conventional core bit. 10... Core bit, 11... Bit body (cylindrical body), 12, 12'... Diamond chip, 1
3,13'...Sintered chip.
Claims (1)
造物、コンクリート構造物等に穴を明けるために
用いるコアビツトにおいて、ビツト本体の先端に
等間隔に複数個のダイヤモンドチツプを配置し、
これらのダイヤモンドチツプの間に、ダイヤモン
ドチツプより摩擦抵抗の小さいチツプを設けたこ
とを特徴とするコアビツト。 In core bits used for making holes in reinforced concrete structures, steel frame concrete structures, concrete structures, etc., a plurality of diamond chips are arranged at equal intervals at the tip of the bit body,
This core bit is characterized in that a chip with lower frictional resistance than a diamond chip is provided between these diamond chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9589389U JPH0724469Y2 (en) | 1989-08-16 | 1989-08-16 | Core bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9589389U JPH0724469Y2 (en) | 1989-08-16 | 1989-08-16 | Core bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0336085U true JPH0336085U (en) | 1991-04-09 |
| JPH0724469Y2 JPH0724469Y2 (en) | 1995-06-05 |
Family
ID=31645129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9589389U Expired - Lifetime JPH0724469Y2 (en) | 1989-08-16 | 1989-08-16 | Core bit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724469Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943102A (en) * | 2021-04-15 | 2021-06-11 | 山东如意机械有限公司 | Metal ceramic drill bit |
-
1989
- 1989-08-16 JP JP9589389U patent/JPH0724469Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943102A (en) * | 2021-04-15 | 2021-06-11 | 山东如意机械有限公司 | Metal ceramic drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0724469Y2 (en) | 1995-06-05 |
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