JPH01164018U - - Google Patents

Info

Publication number
JPH01164018U
JPH01164018U JP6205488U JP6205488U JPH01164018U JP H01164018 U JPH01164018 U JP H01164018U JP 6205488 U JP6205488 U JP 6205488U JP 6205488 U JP6205488 U JP 6205488U JP H01164018 U JPH01164018 U JP H01164018U
Authority
JP
Japan
Prior art keywords
cutting edge
flute
tip
gullet
front cutting
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
JP6205488U
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 JP6205488U priority Critical patent/JPH01164018U/ja
Publication of JPH01164018U publication Critical patent/JPH01164018U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】
第1図は本考案のチツプブレーカー付き環状穿
孔刃物の斜視図、第2図は第1図下部の拡大図、
第3図は従来品の切屑生成と巻付きを説明した図
である。 図面の主要部を表わす符号の説明、1……チツ
プブレーカー付き環状穿孔刃物、4……切屑先端
の突き当たり部、6……超硬チツプの切刃の曲面
、7,8,9,10……切屑生成とその移動状況
。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 円筒状の刃物本体の先端切刃部に於て前切
    刃掬角から延長したR曲線の曲線延長上に障害物
    となる突当たり部を形成していることを特徴とす
    る環状穿孔刃物のチツプブレーカー。 (2) 先端切刃の前切刃(掬刃)とガレツトフル
    ートの関係が円周方向で前切刃―ガレツト―フル
    ート−突当たり物の順に切屑の進行が形成されフ
    ルートの先端は刃先先端に突抜けずに止まつてい
    る。半径方向では前切刃とガレツトは円筒肉厚を
    抜けきつているがフルートの深さは肉厚の約2/
    3を有し突当り物は肉厚と同等であることを特徴
    とする環状穿孔刃物のチツプブレーカー。
JP6205488U 1988-05-10 1988-05-10 Pending JPH01164018U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6205488U JPH01164018U (ja) 1988-05-10 1988-05-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6205488U JPH01164018U (ja) 1988-05-10 1988-05-10

Publications (1)

Publication Number Publication Date
JPH01164018U true JPH01164018U (ja) 1989-11-15

Family

ID=31287689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6205488U Pending JPH01164018U (ja) 1988-05-10 1988-05-10

Country Status (1)

Country Link
JP (1) JPH01164018U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6241767U (ja) * 1985-09-02 1987-03-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6241767U (ja) * 1985-09-02 1987-03-12

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