JPH0512487B2 - - Google Patents

Info

Publication number
JPH0512487B2
JPH0512487B2 JP63011505A JP1150588A JPH0512487B2 JP H0512487 B2 JPH0512487 B2 JP H0512487B2 JP 63011505 A JP63011505 A JP 63011505A JP 1150588 A JP1150588 A JP 1150588A JP H0512487 B2 JPH0512487 B2 JP H0512487B2
Authority
JP
Japan
Prior art keywords
boom
switching valve
arm
valve circuit
guide body
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
JP63011505A
Other languages
English (en)
Japanese (ja)
Other versions
JPH01187232A (ja
Inventor
Mitsuhiro Kishi
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.)
Hikoma Seisakusho Co Ltd
Original Assignee
Hikoma Seisakusho 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 Hikoma Seisakusho Co Ltd filed Critical Hikoma Seisakusho Co Ltd
Priority to JP1150588A priority Critical patent/JPH01187232A/ja
Publication of JPH01187232A publication Critical patent/JPH01187232A/ja
Publication of JPH0512487B2 publication Critical patent/JPH0512487B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
JP1150588A 1988-01-21 1988-01-21 深穴掘削装置 Granted JPH01187232A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1150588A JPH01187232A (ja) 1988-01-21 1988-01-21 深穴掘削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1150588A JPH01187232A (ja) 1988-01-21 1988-01-21 深穴掘削装置

Publications (2)

Publication Number Publication Date
JPH01187232A JPH01187232A (ja) 1989-07-26
JPH0512487B2 true JPH0512487B2 (enExample) 1993-02-18

Family

ID=11779877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1150588A Granted JPH01187232A (ja) 1988-01-21 1988-01-21 深穴掘削装置

Country Status (1)

Country Link
JP (1) JPH01187232A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2535639B2 (ja) * 1990-03-12 1996-09-18 株式会社レンタルのニッケン 深掘り掘削機の保安機構

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS508882U (enExample) * 1973-05-19 1975-01-29

Also Published As

Publication number Publication date
JPH01187232A (ja) 1989-07-26

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