JPH0258082U - - Google Patents

Info

Publication number
JPH0258082U
JPH0258082U JP13713288U JP13713288U JPH0258082U JP H0258082 U JPH0258082 U JP H0258082U JP 13713288 U JP13713288 U JP 13713288U JP 13713288 U JP13713288 U JP 13713288U JP H0258082 U JPH0258082 U JP H0258082U
Authority
JP
Japan
Prior art keywords
piston
underground pipe
fixed
hole diameter
block
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
JP13713288U
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 JP13713288U priority Critical patent/JPH0258082U/ja
Publication of JPH0258082U publication Critical patent/JPH0258082U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Description

【図面の簡単な説明】
第１図は実施例の縦断正面図、第２図は同上の
縦断側面図、第３図は使用例を示す斜視図、第４
図は他の使用例の断面図である。 １……シリンダー本体、２……ベースブロツク
、４……破砕ブロツク、５……ピストン、７……
凹所、１０……圧縮バネ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 油圧シリンダーのシリンダー本体底面にベース
    ブロツクを固定すると共にピストンに破砕ブロツ
    クを固定し、上記ピストンを圧縮バネにより常時
    後退方向に付勢し、上記ピストンのストロークを
    、ピストン最後退時におけるベースブロツクと破
    砕ブロツク外径相互間の長さが地中管路のケーブ
    ル挿通孔の孔径より小さく、かつ伸長時に上記長
    さが地中管路の孔径より大となるよう設定した地
    中管路破砕機。
JP13713288U 1988-10-20 1988-10-20 Pending JPH0258082U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13713288U JPH0258082U (ja) 1988-10-20 1988-10-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13713288U JPH0258082U (ja) 1988-10-20 1988-10-20

Publications (1)

Publication Number Publication Date
JPH0258082U true JPH0258082U (ja) 1990-04-26

Family

ID=31398279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13713288U Pending JPH0258082U (ja) 1988-10-20 1988-10-20

Country Status (1)

Country Link
JP (1) JPH0258082U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012060746A (ja) * 2010-09-07 2012-03-22 Tokyo Electric Power Co Inc:The 管路解体装置および配線接続工法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013194A (ja) * 1983-06-30 1985-01-23 大山　孝一 硬質物破壊装置
JPS62146395A (ja) * 1985-12-17 1987-06-30 川崎重工業株式会社 水道管等の交換装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013194A (ja) * 1983-06-30 1985-01-23 大山　孝一 硬質物破壊装置
JPS62146395A (ja) * 1985-12-17 1987-06-30 川崎重工業株式会社 水道管等の交換装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012060746A (ja) * 2010-09-07 2012-03-22 Tokyo Electric Power Co Inc:The 管路解体装置および配線接続工法

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