JPH0454803U - - Google Patents

Info

Publication number
JPH0454803U
JPH0454803U JP9718690U JP9718690U JPH0454803U JP H0454803 U JPH0454803 U JP H0454803U JP 9718690 U JP9718690 U JP 9718690U JP 9718690 U JP9718690 U JP 9718690U JP H0454803 U JPH0454803 U JP H0454803U
Authority
JP
Japan
Prior art keywords
cutting edge
tip
line
penetrating
cone
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
JP9718690U
Other languages
English (en)
Other versions
JPH078164Y2 (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 JP1990097186U priority Critical patent/JPH078164Y2/ja
Publication of JPH0454803U publication Critical patent/JPH0454803U/ja
Application granted granted Critical
Publication of JPH078164Y2 publication Critical patent/JPH078164Y2/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図は本考案の二枚刃の貫通錐の側面図、第
２図は第１図に対して直角方向の一部省略側面図
、第３図は第１図の錐先端面図、第４図は本考案
の一枚刃の貫通錐の正面図、第５図は第４図の錐
先端面図、第６図は従来の二枚刃の貫通錐を示す
図、第７図はその切削状態図である。 ３……錐部、４……先端切刃部、６……切屑排
出溝、７……側面外周切刃線、８……切刃コーナ
部、９……先端切刃線。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 刃先先端からシヤンク部まで所定の捻じれ
    角で螺旋状の切屑排出溝が形成され、先端切刃部
    と側面切刃部とを有し一枚刃又は二枚刃から成る
    貫通錐に於いて、先端切刃線が側面外周の切刃コ
    ーナ部から先端までの間凸状に１回以上屈曲する
    屈曲線で形成され、側面外周切刃に最も近接した
    部位が錐軸線を含む面上又はその近傍に位置する
    様に形成したことを特徴とする貫通錐。 (2) 側面外周切刃に最も近接した先端切刃線と
    錐軸線とのなす角度が３０°以下である請求項１
    に記載の貫通錐。
JP1990097186U 1990-09-13 1990-09-13 貫通錐 Expired - Lifetime JPH078164Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990097186U JPH078164Y2 (ja) 1990-09-13 1990-09-13 貫通錐

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990097186U JPH078164Y2 (ja) 1990-09-13 1990-09-13 貫通錐

Publications (2)

Publication Number Publication Date
JPH0454803U true JPH0454803U (ja) 1992-05-11
JPH078164Y2 JPH078164Y2 (ja) 1995-03-01

Family

ID=31837337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990097186U Expired - Lifetime JPH078164Y2 (ja) 1990-09-13 1990-09-13 貫通錐

Country Status (1)

Country Link
JP (1) JPH078164Y2 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104771U (ja) * 1972-12-27 1974-09-07
JPS5353999U (ja) * 1976-10-09 1978-05-09

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49104771U (ja) * 1972-12-27 1974-09-07
JPS5353999U (ja) * 1976-10-09 1978-05-09

Also Published As

Publication number Publication date
JPH078164Y2 (ja) 1995-03-01

Similar Documents

Publication Publication Date Title
JPH0297510U (ja)
JPH0294016U (ja)
JPH0454803U (ja)
JPH0457311U (ja)
JPS6189418U (ja)
JPH0371812U (ja)
JPS61144905U (ja)
JPS61102412U (ja)
JPH02126710U (ja)
JPS63124412U (ja)
JPS6110818U (ja) コンクリ−ト用錐
JPH02121902U (ja)
JPH0750575Y2 (ja) 切溝を有するネジ釘
JPS63127828U (ja)
JPS62178010U (ja)
JPH0388618U (ja)
JPH01170511U (ja)
JPS62188313U (ja)
JPH0388623U (ja)
JPS63100108U (ja)
JPH0223925U (ja)
JPH02110412U (ja)
JPS61141014U (ja)
JPS6444102U (ja)
JPS6452620U (ja)

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term