JPS6357014U - - Google Patents
Info
- Publication number
- JPS6357014U JPS6357014U JP15205786U JP15205786U JPS6357014U JP S6357014 U JPS6357014 U JP S6357014U JP 15205786 U JP15205786 U JP 15205786U JP 15205786 U JP15205786 U JP 15205786U JP S6357014 U JPS6357014 U JP S6357014U
- Authority
- JP
- Japan
- Prior art keywords
- tool body
- tool
- tip
- cutting blade
- pair
- 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
- 238000005553 drilling Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 1
Description
第１図および第２図は、この考案の一実施例を
示す図であり、第１図は、穴明け工具の側面図、
第２図は、第１図における矢視図、第３図ない
し第７図は従来の穴明け工具を示す図であり、第
３図は、シンニング面を有する穴明け工具の側面
図、第４図は、第３図における矢視図、第５図
は、空隙部を有する穴明け工具の側面図、第６図
は、第５図における矢視図、第７図は、第５図
および第６図に示す穴明け工具の切削時における
先端部の変形を説明するための概略図である。
２０…工具本体、２１…空隙部、２４…切刃チ
ツプ、２４ａ…内端縁。
1 and 2 are views showing an embodiment of this invention, and FIG. 1 is a side view of the drilling tool;
2 is a view taken along the arrow in FIG. 1, FIGS. 3 to 7 are views showing a conventional drilling tool, FIG. 3 is a side view of a drilling tool having a thinning surface, and FIG. The figures are a view taken in the direction of the arrow in FIG. 3, FIG. 5 is a side view of the drilling tool having a cavity, FIG. 6 is a view taken in the direction of the arrow in FIG. 5, and FIG. FIG. 7 is a schematic diagram for explaining the deformation of the tip of the drilling tool shown in FIG. 6 during cutting. 20... Tool body, 21... Cavity, 24... Cutting blade tip, 24a... Inner edge.
Claims (1)
れらの内端縁を上記工具本体の回転中心軸線から
離間させて設けられ、かつ上記工具本体の回転中
心部に空隙部が設けられた穴明け工具において、
上記一対の切刃チツプを、上記工具本体の先端視
における上記空隙部の範囲内で、互いに当接させ
たことを特徴とする穴明け工具。 A hole in which a pair of cutting blade tips are provided at the tip of the tool body with their inner edges spaced apart from the rotation center axis of the tool body, and a cavity is provided in the rotation center of the tool body. In the opening tool,
A drilling tool characterized in that the pair of cutting blade tips are brought into contact with each other within the range of the gap when viewed from the tip of the tool body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15205786U JPS6357014U (en) | 1986-10-02 | 1986-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15205786U JPS6357014U (en) | 1986-10-02 | 1986-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6357014U true JPS6357014U (en) | 1988-04-16 |
Family
ID=31069689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15205786U Pending JPS6357014U (en) | 1986-10-02 | 1986-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6357014U (en) |
-
1986
- 1986-10-02 JP JP15205786U patent/JPS6357014U/ja active Pending