JPS635091U - - Google Patents

Info

Publication number
JPS635091U
JPS635091U JP9633786U JP9633786U JPS635091U JP S635091 U JPS635091 U JP S635091U JP 9633786 U JP9633786 U JP 9633786U JP 9633786 U JP9633786 U JP 9633786U JP S635091 U JPS635091 U JP S635091U
Authority
JP
Japan
Prior art keywords
bit
tip
fitted
impact
cylindrical
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
JP9633786U
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 JP9633786U priority Critical patent/JPS635091U/ja
Publication of JPS635091U publication Critical patent/JPS635091U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Earth Drilling (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例の正面縦断面図、第
2図は同じく側面縦断面図、第3図は第1図の
―線断面図、第4図は同じく―線断面図、
第5図は第2図の―線断面図、第6図は大き
い転石等に遭遇した場合の掘削要領説明図である
。 図中、1,2……円筒、3,4,4′,4″…
…刃先、…。

Claims (1)

    【実用新案登録請求の範囲】
  1. 円筒状で先端に地盤掘削用の刃先を取付けた内
    外2つのビツトから成り、外側ビツトに内側ビツ
    トが上下動以外の動きを規制された状態で嵌挿さ
    れていることを特徴とする衝撃式二重筒ビツト。
JP9633786U 1986-06-24 1986-06-24 Pending JPS635091U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9633786U JPS635091U (ja) 1986-06-24 1986-06-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9633786U JPS635091U (ja) 1986-06-24 1986-06-24

Publications (1)

Publication Number Publication Date
JPS635091U true JPS635091U (ja) 1988-01-13

Family

ID=30961965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9633786U Pending JPS635091U (ja) 1986-06-24 1986-06-24

Country Status (1)

Country Link
JP (1) JPS635091U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6027353A (ja) * 1983-07-22 1985-02-12 Shiraito:Kk ソ−セ−ジ風の豆腐練製品の製造方法
JPH042280A (ja) * 1990-04-19 1992-01-07 Toshiba Corp 自動焦点合わせ装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6027353A (ja) * 1983-07-22 1985-02-12 Shiraito:Kk ソ−セ−ジ風の豆腐練製品の製造方法
JPH042280A (ja) * 1990-04-19 1992-01-07 Toshiba Corp 自動焦点合わせ装置

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