JPH0166919U - - Google Patents

Info

Publication number
JPH0166919U
JPH0166919U JP1987162800U JP16280087U JPH0166919U JP H0166919 U JPH0166919 U JP H0166919U JP 1987162800 U JP1987162800 U JP 1987162800U JP 16280087 U JP16280087 U JP 16280087U JP H0166919 U JPH0166919 U JP H0166919U
Authority
JP
Japan
Prior art keywords
cylindrical body
circumference
tip
hole
arcuate portion
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
JP1987162800U
Other languages
English (en)
Other versions
JPH071219Y2 (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 JP1987162800U priority Critical patent/JPH071219Y2/ja
Priority to PCT/JP1987/000992 priority patent/WO1988004588A1/ja
Priority to EP88900114A priority patent/EP0295309B1/en
Priority to US07/251,221 priority patent/US5007777A/en
Priority to KR1019880700991A priority patent/KR950011666B1/ko
Publication of JPH0166919U publication Critical patent/JPH0166919U/ja
Application granted granted Critical
Publication of JPH071219Y2 publication Critical patent/JPH071219Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示す筒状体ｂの略
端面図である。第２図は筒状体ｂの他の実施例を
示す略端面図であり、第３図は筒状体ｂについて
又他の実施例を示す略端面図である。第４図は更
に他の実施例を示す略端面図である。第５図Ａは
従来例を示す全体斜視図であり、第５図Ｂはその
正面図である。 ｂ……筒状体、１……第１外周部、２……第２
外周部、３，３′……第３外周部。

Claims (1)

    【実用新案登録請求の範囲】
  1. 筒状体先端の先端縁に切削用刃が設けられ、こ
    の筒状体を回転させる事により、被切削物に円形
    の穴を明けるホールソーにおいて、該筒状体の少
    なくとも先端側部分が、その横断面において、目
    的孔径の周率とほぼ同一の周率を有する円弧部分
    と、異なる周率の円弧部分とを有してなる事を特
    徴とするホールソー。
JP1987162800U 1986-12-18 1987-10-23 ホ−ルソ− Expired - Lifetime JPH071219Y2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1987162800U JPH071219Y2 (ja) 1987-10-23 1987-10-23 ホ−ルソ−
PCT/JP1987/000992 WO1988004588A1 (fr) 1986-12-18 1987-12-18 Scie a trous
EP88900114A EP0295309B1 (en) 1986-12-18 1987-12-18 Hole saw
US07/251,221 US5007777A (en) 1986-12-18 1987-12-18 Hole saw
KR1019880700991A KR950011666B1 (ko) 1986-12-18 1987-12-18 호울 소우(Hole-Saw)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987162800U JPH071219Y2 (ja) 1987-10-23 1987-10-23 ホ−ルソ−

Publications (2)

Publication Number Publication Date
JPH0166919U true JPH0166919U (ja) 1989-04-28
JPH071219Y2 JPH071219Y2 (ja) 1995-01-18

Family

ID=31446957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987162800U Expired - Lifetime JPH071219Y2 (ja) 1986-12-18 1987-10-23 ホ−ルソ−

Country Status (1)

Country Link
JP (1) JPH071219Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57131210U (ja) * 1981-02-09 1982-08-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57131210U (ja) * 1981-02-09 1982-08-16

Also Published As

Publication number Publication date
JPH071219Y2 (ja) 1995-01-18

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