JPS5884808U - Drill - Google Patents
DrillInfo
- Publication number
- JPS5884808U JPS5884808U JP17766381U JP17766381U JPS5884808U JP S5884808 U JPS5884808 U JP S5884808U JP 17766381 U JP17766381 U JP 17766381U JP 17766381 U JP17766381 U JP 17766381U JP S5884808 U JPS5884808 U JP S5884808U
- Authority
- JP
- Japan
- Prior art keywords
- drill
- chip discharge
- discharge groove
- rear end
- movement
- 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
- Drilling Tools (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のドリルの一例を示す底面親図、第２図な
いし第５図はこの考案の一実施例を示し、第２図はその
一部省略正面図、第３図はその一部省略側面図、第４図
は第２図のＩＶ−ＩＶ線に沿う拡大断面図、第５図は第
２図のＶ−Ｖ線に沿う拡大断面図である。
１３・・・・・・切屑排出溝、０・・・・・・回転中心
。Fig. 1 is a bottom view showing an example of a conventional drill, Figs. 2 to 5 show an embodiment of this invention, Fig. 2 is a partially omitted front view, and Fig. 3 is a partially omitted front view. 4 is an enlarged sectional view taken along the line IV-IV in FIG. 2, and FIG. 5 is an enlarged sectional view taken along the line V-V in FIG. 2. 13...Chip discharge groove, 0...Rotation center.
Claims (1)
て、上記切屑排出溝１３の全長または後端側の一部はド
リルの後端側に向かうに従い、ドリルの回転中心０をほ
ぼ中心にして正の軸すくい角でドリルの周方向に漸次平
行移動せしめられ、かつその横断面積を漸次減少せしめ
られてなることを特徴とするドリル。 ２ 上記切屑排出溝１３は、ドリルの軸線方向の移動量
に対するドリルの周方向の移動量を先端側から後端側ま
で一定にして平行移動されてなることを特徴とする実用
新案登録請求の範囲第１項記載のドリル。 ３ 上記切屑排出溝１３は、ドリルの軸線方向の移動量
に対するドリルの周方向の移動量を先端側から後端側に
向かうに従い漸次増大されて平行移動されてなることを
特徴とする実用新案登録請求の範囲第１項記載のドリル
。 ４ 上記切屑排出溝１３は、先端から直径の０゜５ない
し２倍の範囲を１０″ないし３０″のねじれ溝にされて
なることを特徴とする実用新案登録請求の範囲第１項な
いし第３項のいずれかに記載のドリル。[Claims for Utility Model Registration] 1. In a drill in which a chip discharge groove 13 is formed on the outer periphery, the entire length or a part of the rear end side of the chip discharge groove 13 increases as the drill rotates toward the rear end side of the drill. A drill characterized in that it is gradually translated in parallel in the circumferential direction of the drill at a positive axial rake angle about center 0, and its cross-sectional area is gradually reduced. 2. Claims for Utility Model Registration characterized in that the chip discharge groove 13 is moved in parallel with the amount of movement in the circumferential direction of the drill constant from the tip side to the rear end side relative to the amount of movement in the axial direction of the drill. The drill described in paragraph 1. 3. The above-mentioned chip discharge groove 13 is moved in parallel so that the amount of movement in the circumferential direction of the drill relative to the amount of movement in the axial direction of the drill is gradually increased from the tip side to the rear end side. A drill according to claim 1. 4. Utility model registration claims 1 to 3, characterized in that the chip discharge groove 13 has a helical groove of 10" to 30" in an area of 0.5 to 2 times the diameter from the tip. A drill as described in any of the paragraphs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17766381U JPS5884808U (en) | 1981-11-28 | 1981-11-28 | Drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17766381U JPS5884808U (en) | 1981-11-28 | 1981-11-28 | Drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5884808U true JPS5884808U (en) | 1983-06-08 |
Family
ID=29971754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17766381U Pending JPS5884808U (en) | 1981-11-28 | 1981-11-28 | Drill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5884808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010505635A (en) * | 2006-10-13 | 2010-02-25 | ケンナメタル インコーポレイテッド | Modular drilling tool and manufacturing method |
-
1981
- 1981-11-28 JP JP17766381U patent/JPS5884808U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010505635A (en) * | 2006-10-13 | 2010-02-25 | ケンナメタル インコーポレイテッド | Modular drilling tool and manufacturing method |
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