JPH0235837B2 - - Google Patents

Info

Publication number
JPH0235837B2
JPH0235837B2 JP59107627A JP10762784A JPH0235837B2 JP H0235837 B2 JPH0235837 B2 JP H0235837B2 JP 59107627 A JP59107627 A JP 59107627A JP 10762784 A JP10762784 A JP 10762784A JP H0235837 B2 JPH0235837 B2 JP H0235837B2
Authority
JP
Japan
Prior art keywords
expanding
potentiometer
cable
tool
hydraulic cylinder
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.)
Expired - Lifetime
Application number
JP59107627A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60253693A (ja
Inventor
Shuichi Ajiro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
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 by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP10762784A priority Critical patent/JPS60253693A/ja
Publication of JPS60253693A publication Critical patent/JPS60253693A/ja
Publication of JPH0235837B2 publication Critical patent/JPH0235837B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP10762784A 1984-05-29 1984-05-29 場所打杭用拡底掘削具の拡底量検出装置 Granted JPS60253693A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10762784A JPS60253693A (ja) 1984-05-29 1984-05-29 場所打杭用拡底掘削具の拡底量検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10762784A JPS60253693A (ja) 1984-05-29 1984-05-29 場所打杭用拡底掘削具の拡底量検出装置

Publications (2)

Publication Number Publication Date
JPS60253693A JPS60253693A (ja) 1985-12-14
JPH0235837B2 true JPH0235837B2 (cs) 1990-08-14

Family

ID=14463979

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10762784A Granted JPS60253693A (ja) 1984-05-29 1984-05-29 場所打杭用拡底掘削具の拡底量検出装置

Country Status (1)

Country Link
JP (1) JPS60253693A (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0649977B2 (ja) * 1986-06-18 1994-06-29 克巳 北中 拡底坑掘削機用拡底坑計測装置
DE102016124341A1 (de) 2016-12-14 2018-06-14 Hamm Ag Baumaschine
JP6853519B2 (ja) * 2017-05-18 2021-03-31 株式会社長谷工コーポレーション 掘削孔の拡径装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6014873Y2 (ja) * 1977-06-06 1985-05-11 株式会社トキメック 掘削機用制御装置
JPS5820044A (ja) * 1981-07-30 1983-02-05 Fujitsu Ltd スタツフ同期方式

Also Published As

Publication number Publication date
JPS60253693A (ja) 1985-12-14

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees