JPS5844115U - Anti-resonance core drill - Google Patents

Anti-resonance core drill

Info

Publication number
JPS5844115U
JPS5844115U JP13947481U JP13947481U JPS5844115U JP S5844115 U JPS5844115 U JP S5844115U JP 13947481 U JP13947481 U JP 13947481U JP 13947481 U JP13947481 U JP 13947481U JP S5844115 U JPS5844115 U JP S5844115U
Authority
JP
Japan
Prior art keywords
core drill
cutting blades
resonance core
resonance
blade
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
Application number
JP13947481U
Other languages
Japanese (ja)
Other versions
JPS6116007Y2 (en
Inventor
昌明 宮永
Original Assignee
株式会社ミヤナガ
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 by 株式会社ミヤナガ filed Critical 株式会社ミヤナガ
Priority to JP13947481U priority Critical patent/JPS5844115U/en
Publication of JPS5844115U publication Critical patent/JPS5844115U/en
Application granted granted Critical
Publication of JPS6116007Y2 publication Critical patent/JPS6116007Y2/ja
Granted legal-status Critical Current

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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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

添付図面は本考案の実施例を示すものであり、第１図は
平面図、第２図は一部を欠如した正面図、第３図は底面
拡大図である。 １・・・主胴、２・・・切削刃、３・・・シャンク、４
・・・センタードリル、５・・・止めねじ孔、ａ・・・
切削刃間隔、ｂ・・・刃幅、Ｃ・・・放射線、ｄ・・・
対角線、０１〜θ６パ・・不等夾角。 第１図 第２図The accompanying drawings show an embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is a front view with a portion cut away, and FIG. 3 is an enlarged bottom view. 1... Main body, 2... Cutting blade, 3... Shank, 4
...Center drill, 5...Set screw hole, a...
Cutting blade interval, b...Blade width, C...Radiation, d...
Diagonal line, 01 to θ6 pa...unequal included angle. Figure 1 Figure 2

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 上部に回転用シャンクを具備し、下端を開放した円筒体
の主胴の周縁部下端に穿孔用切削刃を配設したコアドリ
ルにおいて、コアドリル円周上０°から１８０°までは
不等間隔で切削刃を配置し、１８０°から３６０°まで
の切削刃はその刃幅以内において位置をずらせて同一対
角線上に位置をとらない様に配置して切削刃を植設した
ことを特徴とする共振防止型コアドリル。A core drill with a rotating shank at the top and a cutting blade for drilling at the lower end of the periphery of a cylindrical main body with an open bottom end. Cuts at irregular intervals from 0° to 180° on the core drill circumference. Resonance prevention characterized by placing the cutting blades in such a way that the cutting blades from 180° to 360° are shifted within the blade width so that they are not located on the same diagonal line. Type core drill.
JP13947481U 1981-09-18 1981-09-18 Anti-resonance core drill Granted JPS5844115U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13947481U JPS5844115U (en) 1981-09-18 1981-09-18 Anti-resonance core drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13947481U JPS5844115U (en) 1981-09-18 1981-09-18 Anti-resonance core drill

Publications (2)

Publication Number Publication Date
JPS5844115U true JPS5844115U (en) 1983-03-24
JPS6116007Y2 JPS6116007Y2 (en) 1986-05-17

Family

ID=29932661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13947481U Granted JPS5844115U (en) 1981-09-18 1981-09-18 Anti-resonance core drill

Country Status (1)

Country Link
JP (1) JPS5844115U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0443195U (en) * 1990-08-10 1992-04-13
WO2006025230A1 (en) * 2004-08-31 2006-03-09 Kabushiki Kaisha Miyanaga Core cutter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0443195U (en) * 1990-08-10 1992-04-13
JPH0630073Y2 (en) * 1990-08-10 1994-08-17 幸太郎 川井田 Holder for toilet paper
WO2006025230A1 (en) * 2004-08-31 2006-03-09 Kabushiki Kaisha Miyanaga Core cutter
JPWO2006025230A1 (en) * 2004-08-31 2008-05-08 株式会社ミヤナガ Core cutter

Also Published As

Publication number Publication date
JPS6116007Y2 (en) 1986-05-17

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