JPH0175194U - - Google Patents

Info

Publication number
JPH0175194U
JPH0175194U JP1987170506U JP17050687U JPH0175194U JP H0175194 U JPH0175194 U JP H0175194U JP 1987170506 U JP1987170506 U JP 1987170506U JP 17050687 U JP17050687 U JP 17050687U JP H0175194 U JPH0175194 U JP H0175194U
Authority
JP
Japan
Prior art keywords
outer periphery
attached
enlarged
rotatable
predetermined angle
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
JP1987170506U
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 JP1987170506U priority Critical patent/JPH0175194U/ja
Publication of JPH0175194U publication Critical patent/JPH0175194U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の実施例を示す正面図、第2
図は同平面図、第3図は普通掘削時の状態を示す
正面図、第4図は拡大掘削時の状態を示す正面図
、第5図は従来の拡大ビツトの正面図である。 1……掘削ロツド、2……ジヨイントロツド、
3……ビツドボデイ、4……掘削羽根、5……ブ
ラケツト、6……枢軸、7……拡大刃、8……ス
トツパー、9……ストツパー、10……押圧ノツ
ク。

Claims (1)

    【実用新案登録請求の範囲】
  1. 外周に掘削羽根を取付けたビツトボデイをジヨ
    イントロツドの下端に所定角度回転自在に取付け
    、前記ビツトボデイーの外周に上下のブラケツト
    に支持された枢軸に中間部を所定角度回転自在に
    取付けた拡大刃を設け、前記拡大刃の後端部に向
    つて先端部を突出し、基端部を前記ジヨイントロ
    ツドの外周に固定した押圧ノツクを設けてなるこ
    とを特徴とする拡大掘削装置。
JP1987170506U 1987-11-07 1987-11-07 Pending JPH0175194U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987170506U JPH0175194U (ja) 1987-11-07 1987-11-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987170506U JPH0175194U (ja) 1987-11-07 1987-11-07

Publications (1)

Publication Number Publication Date
JPH0175194U true JPH0175194U (ja) 1989-05-22

Family

ID=31461515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987170506U Pending JPH0175194U (ja) 1987-11-07 1987-11-07

Country Status (1)

Country Link
JP (1) JPH0175194U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH057781U (ja) * 1991-07-08 1993-02-02 日本ベース株式会社 中掘拡底工法用の掘削ビツト
JP2019183480A (ja) * 2018-04-09 2019-10-24 ジャパンパイル株式会社 掘削機用拡大ヘッド

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH057781U (ja) * 1991-07-08 1993-02-02 日本ベース株式会社 中掘拡底工法用の掘削ビツト
JP2019183480A (ja) * 2018-04-09 2019-10-24 ジャパンパイル株式会社 掘削機用拡大ヘッド

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