JPH026795U - - Google Patents

Info

Publication number
JPH026795U
JPH026795U JP8629288U JP8629288U JPH026795U JP H026795 U JPH026795 U JP H026795U JP 8629288 U JP8629288 U JP 8629288U JP 8629288 U JP8629288 U JP 8629288U JP H026795 U JPH026795 U JP H026795U
Authority
JP
Japan
Prior art keywords
base material
tip
view
bit
cutting bit
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
JP8629288U
Other languages
English (en)
Other versions
JPH07550Y2 (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 JP1988086292U priority Critical patent/JPH07550Y2/ja
Publication of JPH026795U publication Critical patent/JPH026795U/ja
Application granted granted Critical
Publication of JPH07550Y2 publication Critical patent/JPH07550Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Description

【図面の簡単な説明】
第1図および第2図は本考案の第1実施例で、
第1図は掘進方向の両方向切削ビツトが地山に切
込む状態を示す説明図、第2図はカツタースポー
クに設けられた両方向切削ビツトの斜視図、第3
図および第4図は本考案が適用されたシールド掘
削機の正面図および概略側面図、第5図は本考案
の第2実施例の要部斜視図、第6図は本考案の第
3実施例、第7図は本考案の第4実施例、第8図
は最外周のカツタービツトに本考案を適用した実
施例の要部斜視図、第9図はその側方から見た図
、第10図ないし第14図は従来例の動作説明図
である。 1…カツタースポーク、2…両方向切削ビツト
、3,3A′…母材、3a…斜面部分、4…第1
の超硬チツプ、5…第2の超硬チツプ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 両方向切削ビツトにおいて、このビツトの母材
    先端部およびその両側部であつて掘削時に地盤あ
    るいは掘削土砂と接する斜面部分にかけて超硬チ
    ツプを設けたことを特徴とする両方向切削ビツト
JP1988086292U 1988-06-29 1988-06-29 両方向切削ビット Expired - Lifetime JPH07550Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988086292U JPH07550Y2 (ja) 1988-06-29 1988-06-29 両方向切削ビット

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988086292U JPH07550Y2 (ja) 1988-06-29 1988-06-29 両方向切削ビット

Publications (2)

Publication Number Publication Date
JPH026795U true JPH026795U (ja) 1990-01-17
JPH07550Y2 JPH07550Y2 (ja) 1995-01-11

Family

ID=31310931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988086292U Expired - Lifetime JPH07550Y2 (ja) 1988-06-29 1988-06-29 両方向切削ビット

Country Status (1)

Country Link
JP (1) JPH07550Y2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0430190U (ja) * 1990-07-04 1992-03-11
JP4734735B2 (ja) * 2001-03-02 2011-07-27 株式会社タンガロイ 両方向掘削ビット

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5931697U (ja) * 1982-08-19 1984-02-27 日立造船株式会社 シ−ルド掘進機のカツタ−
JPS61121293U (ja) * 1985-01-11 1986-07-31
JPS62190786U (ja) * 1986-05-21 1987-12-04

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5931697U (ja) * 1982-08-19 1984-02-27 日立造船株式会社 シ−ルド掘進機のカツタ−
JPS61121293U (ja) * 1985-01-11 1986-07-31
JPS62190786U (ja) * 1986-05-21 1987-12-04

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0430190U (ja) * 1990-07-04 1992-03-11
JP4734735B2 (ja) * 2001-03-02 2011-07-27 株式会社タンガロイ 両方向掘削ビット

Also Published As

Publication number Publication date
JPH07550Y2 (ja) 1995-01-11

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