JPH0413213U - - Google Patents

Info

Publication number
JPH0413213U
JPH0413213U JP5347990U JP5347990U JPH0413213U JP H0413213 U JPH0413213 U JP H0413213U JP 5347990 U JP5347990 U JP 5347990U JP 5347990 U JP5347990 U JP 5347990U JP H0413213 U JPH0413213 U JP H0413213U
Authority
JP
Japan
Prior art keywords
tip
drill
cutting edges
drill body
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
Application number
JP5347990U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP5347990U priority Critical patent/JPH0413213U/ja
Publication of JPH0413213U publication Critical patent/JPH0413213U/ja
Pending legal-status Critical Current

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  • Drilling Tools (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図〜第4図はこの考案のドリルの一実施例
を示すもので、第1図は正面図、第2図は軸線方
向先端視図、第3図は切屑の生成状態を示す正面
図、第4図は同じく軸線方向先端視図、第5図〜
第8図は従来のドリルの一例を示すもので、第5
図は正面図、第6図は軸線方向先端視図、第7図
は切屑の生成状態を示す正面図、第8図は同じく
軸線方向先端視図、第9図〜第11図は従来のド
リルの他の例を示すもので、第9図は正面図、第
10図は軸線方向先端視図、第11図は切削され
た被削材の断面図である。 1……ドリル本体、2……切屑排出ポケツト、
3……溝部、20……切刃チツプ、22……段部
、23……主切刃、24……内刃(切刃)、25
……外刃(切刃)、M,M……切屑。
Figures 1 to 4 show an embodiment of the drill of this invention; Figure 1 is a front view, Figure 2 is a view from the tip in the axial direction, and Figure 3 is a front view showing the state of chip formation. , FIG. 4 is a view from the tip in the axial direction, and FIG.
Figure 8 shows an example of a conventional drill.
The figure is a front view, Fig. 6 is a view from the tip in the axial direction, Fig. 7 is a front view showing the state of chip formation, Fig. 8 is a view from the tip in the axial direction, and Figs. 9 to 11 are conventional drills. FIG. 9 is a front view, FIG. 10 is a front end view in the axial direction, and FIG. 11 is a sectional view of the cut material. 1... Drill body, 2... Chip discharge pocket,
3... Groove portion, 20... Cutting edge tip, 22... Step portion, 23... Main cutting edge, 24... Inner blade (cutting edge), 25
... Outer blade (cutting edge), M 1 , M 2 ... Chips.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 棒状をなすドリル本体の先端部の直径方向に形
成された溝部内に、切刃チツプをその主切刃を上
記ドリル本体の先端側に突出させて固定してなる
ドリルにおいて、上記主切刃を、上記ドリル本体
の軸線方向先端視において、軸線側から外周側に
延びる互いに不連続な複数の切刃と、これら切刃
を連結する段部とから形成し、かつ上記複数の切
刃を回転軌跡において互いに軸線側から外周側に
至るまで連続させたことを特徴とするドリル。
A drill in which a cutting tip is fixed in a groove formed in the diametrical direction of the tip of a rod-shaped drill body with the main cutting edge protruding toward the tip of the drill body, wherein the main cutting edge is , when viewed from the tip in the axial direction of the drill body, is formed of a plurality of mutually discontinuous cutting edges extending from the axis side to the outer circumferential side, and a stepped portion connecting these cutting edges, and the plurality of cutting edges are rotated along a rotation trajectory. A drill characterized in that the drill bits are continuous with each other from the axis side to the outer circumferential side.
JP5347990U 1990-05-22 1990-05-22 Pending JPH0413213U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5347990U JPH0413213U (en) 1990-05-22 1990-05-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5347990U JPH0413213U (en) 1990-05-22 1990-05-22

Publications (1)

Publication Number Publication Date
JPH0413213U true JPH0413213U (en) 1992-02-03

Family

ID=31574699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5347990U Pending JPH0413213U (en) 1990-05-22 1990-05-22

Country Status (1)

Country Link
JP (1) JPH0413213U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010253616A (en) * 2009-04-24 2010-11-11 Tungaloy Corp Drilling tool
WO2022054829A1 (en) * 2020-09-09 2022-03-17 京セラ株式会社 Cutting insert, rotary tool, and method for manufacturing cut product

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5014097B1 (en) * 1969-05-29 1975-05-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5014097B1 (en) * 1969-05-29 1975-05-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010253616A (en) * 2009-04-24 2010-11-11 Tungaloy Corp Drilling tool
WO2022054829A1 (en) * 2020-09-09 2022-03-17 京セラ株式会社 Cutting insert, rotary tool, and method for manufacturing cut product

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