JPH0630955Y2 - 掘削装置 - Google Patents

掘削装置

Info

Publication number
JPH0630955Y2
JPH0630955Y2 JP7204388U JP7204388U JPH0630955Y2 JP H0630955 Y2 JPH0630955 Y2 JP H0630955Y2 JP 7204388 U JP7204388 U JP 7204388U JP 7204388 U JP7204388 U JP 7204388U JP H0630955 Y2 JPH0630955 Y2 JP H0630955Y2
Authority
JP
Japan
Prior art keywords
bit
cylinder
excavation
head
bit 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
JP7204388U
Other languages
English (en)
Japanese (ja)
Other versions
JPH01176197U (en, 2012
Inventor
藤夫 瀬谷
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7204388U priority Critical patent/JPH0630955Y2/ja
Publication of JPH01176197U publication Critical patent/JPH01176197U/ja
Application granted granted Critical
Publication of JPH0630955Y2 publication Critical patent/JPH0630955Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP7204388U 1988-05-31 1988-05-31 掘削装置 Expired - Lifetime JPH0630955Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7204388U JPH0630955Y2 (ja) 1988-05-31 1988-05-31 掘削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7204388U JPH0630955Y2 (ja) 1988-05-31 1988-05-31 掘削装置

Publications (2)

Publication Number Publication Date
JPH01176197U JPH01176197U (en, 2012) 1989-12-15
JPH0630955Y2 true JPH0630955Y2 (ja) 1994-08-22

Family

ID=31297221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7204388U Expired - Lifetime JPH0630955Y2 (ja) 1988-05-31 1988-05-31 掘削装置

Country Status (1)

Country Link
JP (1) JPH0630955Y2 (en, 2012)

Also Published As

Publication number Publication date
JPH01176197U (en, 2012) 1989-12-15

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