JPS60165585U - drill bit - Google Patents
drill bitInfo
- Publication number
- JPS60165585U JPS60165585U JP5266084U JP5266084U JPS60165585U JP S60165585 U JPS60165585 U JP S60165585U JP 5266084 U JP5266084 U JP 5266084U JP 5266084 U JP5266084 U JP 5266084U JP S60165585 U JPS60165585 U JP S60165585U
- Authority
- JP
- Japan
- Prior art keywords
- drill bit
- groove
- stored state
- circumferential surface
- outer circumferential
- 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
Landscapes
- Earth Drilling (AREA)
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図は従来例の説明図、第2図は岩盤破砕方法の説明
図、第3図は本考案の実施例を示す縦断面図、第4図は
第3図のIV−IV線断面図、第5図はサイドカッタが
拡張した状態の縦断面図、第6図は第5図のVI−VI
線断面図、第7図は動作説明図、第8図は岩盤破砕方法
の説明図、第9図は他の動作説明図である。
1は胴体部、1aは外周面、10はサイドカッ ゛り
。Fig. 1 is an explanatory diagram of a conventional example, Fig. 2 is an explanatory diagram of a rock crushing method, Fig. 3 is a vertical sectional view showing an embodiment of the present invention, and Fig. 4 is a sectional view taken along the line IV-IV of Fig. 3. , FIG. 5 is a vertical cross-sectional view of the side cutter in an expanded state, and FIG. 6 is a VI-VI view of FIG. 5.
A line sectional view, FIG. 7 is an explanatory diagram of the operation, FIG. 8 is an explanatory diagram of the rock crushing method, and FIG. 9 is an explanatory diagram of another operation. 1 is the body, 1a is the outer circumferential surface, and 10 is the side cut.
Claims (1)
の溝内にサイドカッタ10を収納状態と外方に拡張した
状態とに移動自在に取付けると共に、収納状態に小さな
力で保持する部材を設けたことを特徴とするドリルビッ
ト=A groove is formed in the outer circumferential surface 1a of the body part 1 having the cutting blade 2, and the side cutter 10 is mounted in this groove so as to be movable between a stored state and an outwardly expanded state, and is held in the stored state with a small force. A drill bit characterized by having a member that
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5266084U JPS60165585U (en) | 1984-04-12 | 1984-04-12 | drill bit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5266084U JPS60165585U (en) | 1984-04-12 | 1984-04-12 | drill bit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60165585U true JPS60165585U (en) | 1985-11-02 |
Family
ID=30572810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5266084U Pending JPS60165585U (en) | 1984-04-12 | 1984-04-12 | drill bit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60165585U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02147789A (en) * | 1988-11-30 | 1990-06-06 | Mitani Sekisan Co Ltd | Boring head for auger |
JPH03262891A (en) * | 1990-03-14 | 1991-11-22 | Mitsubishi Materials Corp | Excavating tool |
-
1984
- 1984-04-12 JP JP5266084U patent/JPS60165585U/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02147789A (en) * | 1988-11-30 | 1990-06-06 | Mitani Sekisan Co Ltd | Boring head for auger |
JPH03262891A (en) * | 1990-03-14 | 1991-11-22 | Mitsubishi Materials Corp | Excavating tool |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS60165585U (en) | drill bit | |
JPS59171010U (en) | carbide drill | |
JPS588505U (en) | boring cutter | |
JPS6012416U (en) | V-grooving cutter | |
JPS58152267U (en) | knife with a through hole | |
JPS615518U (en) | Lead end mill cutter | |
JPS58135436U (en) | Glass drilling diamond drill | |
JPS58163396U (en) | Cavitation prevention propeller | |
JPS58103286U (en) | Cutting machine head | |
JPS6014811U (en) | end mill katsuta | |
JPS60105109U (en) | machete | |
JPS5912505U (en) | Drilling tools | |
JPS6097216U (en) | Tools for machining end faces and center holes of shaft parts | |
JPS59193617U (en) | trepanning tool | |
JPS6139306U (en) | Drill | |
JPS59112533U (en) | reamer | |
JPS6087611U (en) | gun drill | |
JPS59171009U (en) | hole cutter | |
JPS59109408U (en) | Hole drilling tools | |
JPS5889217U (en) | Deep hole drilling tool with chip discharge groove | |
JPS60175502U (en) | Chamfering tool | |
JPS59120517U (en) | end mill | |
JPS5840310U (en) | Deep hole drilling tools | |
JPH0171009U (en) | ||
JPS58126105U (en) | Back counterbore device |