JPH0454803U - - Google Patents
Info
- Publication number
- JPH0454803U JPH0454803U JP9718690U JP9718690U JPH0454803U JP H0454803 U JPH0454803 U JP H0454803U JP 9718690 U JP9718690 U JP 9718690U JP 9718690 U JP9718690 U JP 9718690U JP H0454803 U JPH0454803 U JP H0454803U
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- tip
- line
- penetrating
- cone
- 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
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Drilling Tools (AREA)
Description
第１図は本考案の二枚刃の貫通錐の側面図、第
２図は第１図に対して直角方向の一部省略側面図
、第３図は第１図の錐先端面図、第４図は本考案
の一枚刃の貫通錐の正面図、第５図は第４図の錐
先端面図、第６図は従来の二枚刃の貫通錐を示す
図、第７図はその切削状態図である。
３……錐部、４……先端切刃部、６……切屑排
出溝、７……側面外周切刃線、８……切刃コーナ
部、９……先端切刃線。
Fig. 1 is a side view of the two-blade penetrating drill of the present invention, Fig. 2 is a partially omitted side view taken in a direction perpendicular to Fig. 1, and Fig. 3 is a top view of the tip of the drill in Fig. 1; Fig. 4 is a front view of the single-blade penetrating awl of the present invention, Fig. 5 is a top view of the aperture of Fig. 4, Fig. 6 is a diagram showing a conventional two-blade penetrating awl, and Fig. 7 is a view of the aperture of the present invention. It is a cutting state diagram. 3... Conical part, 4... Tip cutting edge part, 6... Chip discharge groove, 7... Side outer periphery cutting edge line, 8... Cutting edge corner part, 9... Tip cutting edge line.
Claims (1)
角で螺旋状の切屑排出溝が形成され、先端切刃部
と側面切刃部とを有し一枚刃又は二枚刃から成る
貫通錐に於いて、先端切刃線が側面外周の切刃コ
ーナ部から先端までの間凸状に１回以上屈曲する
屈曲線で形成され、側面外周切刃に最も近接した
部位が錐軸線を含む面上又はその近傍に位置する
様に形成したことを特徴とする貫通錐。 (2) 側面外周切刃に最も近接した先端切刃線と
錐軸線とのなす角度が３０°以下である請求項１
に記載の貫通錐。[Claims for Utility Model Registration] (1) A spiral chip discharge groove is formed at a predetermined helix angle from the tip of the cutting edge to the shank, and has a tip cutting edge and a side cutting edge. In a penetrating drill consisting of two blades, the tip cutting edge line is formed by a curved line that bends convexly one or more times from the cutting edge corner on the outer periphery of the side surface to the tip, and 1. A penetrating cone, characterized in that the portion is formed so as to be located on or in the vicinity of a plane containing the cone axis. (2) Claim 1, wherein the angle formed between the tip cutting edge line closest to the side outer circumferential cutting edge and the conical axis line is 30° or less
The penetrating cone described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990097186U JPH078164Y2 (en) | 1990-09-13 | 1990-09-13 | Penetration cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990097186U JPH078164Y2 (en) | 1990-09-13 | 1990-09-13 | Penetration cone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0454803U true JPH0454803U (en) | 1992-05-11 |
| JPH078164Y2 JPH078164Y2 (en) | 1995-03-01 |
Family
ID=31837337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990097186U Expired - Lifetime JPH078164Y2 (en) | 1990-09-13 | 1990-09-13 | Penetration cone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH078164Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104771U (en) * | 1972-12-27 | 1974-09-07 | ||
| JPS5353999U (en) * | 1976-10-09 | 1978-05-09 |
-
1990
- 1990-09-13 JP JP1990097186U patent/JPH078164Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104771U (en) * | 1972-12-27 | 1974-09-07 | ||
| JPS5353999U (en) * | 1976-10-09 | 1978-05-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH078164Y2 (en) | 1995-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |