JPH0629273Y2 - 小口径管推進機の油圧制御装置 - Google Patents

小口径管推進機の油圧制御装置

Info

Publication number
JPH0629273Y2
JPH0629273Y2 JP5275688U JP5275688U JPH0629273Y2 JP H0629273 Y2 JPH0629273 Y2 JP H0629273Y2 JP 5275688 U JP5275688 U JP 5275688U JP 5275688 U JP5275688 U JP 5275688U JP H0629273 Y2 JPH0629273 Y2 JP H0629273Y2
Authority
JP
Japan
Prior art keywords
propulsion
switching valve
cylinder
pressure
chuck
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
JP5275688U
Other languages
English (en)
Japanese (ja)
Other versions
JPH01160089U (2
Inventor
辰雄 屋敷
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP5275688U priority Critical patent/JPH0629273Y2/ja
Publication of JPH01160089U publication Critical patent/JPH01160089U/ja
Application granted granted Critical
Publication of JPH0629273Y2 publication Critical patent/JPH0629273Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP5275688U 1988-04-21 1988-04-21 小口径管推進機の油圧制御装置 Expired - Lifetime JPH0629273Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5275688U JPH0629273Y2 (ja) 1988-04-21 1988-04-21 小口径管推進機の油圧制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5275688U JPH0629273Y2 (ja) 1988-04-21 1988-04-21 小口径管推進機の油圧制御装置

Publications (2)

Publication Number Publication Date
JPH01160089U JPH01160089U (2) 1989-11-07
JPH0629273Y2 true JPH0629273Y2 (ja) 1994-08-10

Family

ID=31278755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5275688U Expired - Lifetime JPH0629273Y2 (ja) 1988-04-21 1988-04-21 小口径管推進機の油圧制御装置

Country Status (1)

Country Link
JP (1) JPH0629273Y2 (2)

Also Published As

Publication number Publication date
JPH01160089U (2) 1989-11-07

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