JPH0319614U - - Google Patents

Info

Publication number
JPH0319614U
JPH0319614U JP7696489U JP7696489U JPH0319614U JP H0319614 U JPH0319614 U JP H0319614U JP 7696489 U JP7696489 U JP 7696489U JP 7696489 U JP7696489 U JP 7696489U JP H0319614 U JPH0319614 U JP H0319614U
Authority
JP
Japan
Prior art keywords
cutter
cutting edge
drill structure
angle
edge
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
JP7696489U
Other languages
English (en)
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 JP7696489U priority Critical patent/JPH0319614U/ja
Publication of JPH0319614U publication Critical patent/JPH0319614U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)

Description

【図面の簡単な説明】
第1図は、本考案に係るドリル構造を備えたド
リルの平面図、第2図は、第1図に示すドリルの
部分正面図、第3図は、第1図に示すドリルの部
分側面図、第4図は、第2図のA−A線における
断面図である。第5図は、第1図乃至第4図に示
すドリルの刃先部分の斜視図である。 1……ドリル、1a……刃先部分、2……ボデ
ー、3……ねじれ溝、9……切刃、11……第1
のすくい面、12……第2のすくい面、13……
送り出し面、14……底面、91……内刃、92
……外刃、93……段部、α……ねじれ角、β…
…すくい角、γ……切刃角。

Claims (1)

  1. 【実用新案登録請求の範囲】 先端部に切刃が形成され、該切刃から延びる螺
    旋状のねじれ溝を備えたドリル構造において、 前記切刃が半径方向内方の内刃と、半径方向外
    方の外刃とを有し、前記外刃のすくい角が、前記
    内刃のすくい角よりも大きな角度に設定され、前
    記外刃が、前記内刃と接合される半径方向内方端
    から半径方向外方に向かつて、前記内刃に対して
    回転方向後方に所定の角度をなして延びている、 ことを特徴とするドリル構造。
JP7696489U 1989-06-29 1989-06-29 Pending JPH0319614U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7696489U JPH0319614U (ja) 1989-06-29 1989-06-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7696489U JPH0319614U (ja) 1989-06-29 1989-06-29

Publications (1)

Publication Number Publication Date
JPH0319614U true JPH0319614U (ja) 1991-02-26

Family

ID=31618907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7696489U Pending JPH0319614U (ja) 1989-06-29 1989-06-29

Country Status (1)

Country Link
JP (1) JPH0319614U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014113661A (ja) * 2012-12-10 2014-06-26 Mitsubishi Materials Corp ドリル

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59166405A (ja) * 1983-03-07 1984-09-19 Daijietsuto Kogyo Kk ドリル
JPH0215908A (ja) * 1988-07-04 1990-01-19 Toshiaki Hosoi ドリル、ドリルの研摩方法および研摩装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59166405A (ja) * 1983-03-07 1984-09-19 Daijietsuto Kogyo Kk ドリル
JPH0215908A (ja) * 1988-07-04 1990-01-19 Toshiaki Hosoi ドリル、ドリルの研摩方法および研摩装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014113661A (ja) * 2012-12-10 2014-06-26 Mitsubishi Materials Corp ドリル

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