JP2511669Y2 - 掘削装置 - Google Patents

掘削装置

Info

Publication number
JP2511669Y2
JP2511669Y2 JP6023590U JP6023590U JP2511669Y2 JP 2511669 Y2 JP2511669 Y2 JP 2511669Y2 JP 6023590 U JP6023590 U JP 6023590U JP 6023590 U JP6023590 U JP 6023590U JP 2511669 Y2 JP2511669 Y2 JP 2511669Y2
Authority
JP
Japan
Prior art keywords
hollow shaft
sheave
rotary arm
leader mast
sub
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
JP6023590U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0417488U (enrdf_load_html_response
Inventor
正人 大堀
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 JP6023590U priority Critical patent/JP2511669Y2/ja
Publication of JPH0417488U publication Critical patent/JPH0417488U/ja
Application granted granted Critical
Publication of JP2511669Y2 publication Critical patent/JP2511669Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Earth Drilling (AREA)
JP6023590U 1990-06-06 1990-06-06 掘削装置 Expired - Lifetime JP2511669Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6023590U JP2511669Y2 (ja) 1990-06-06 1990-06-06 掘削装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6023590U JP2511669Y2 (ja) 1990-06-06 1990-06-06 掘削装置

Publications (2)

Publication Number Publication Date
JPH0417488U JPH0417488U (enrdf_load_html_response) 1992-02-13
JP2511669Y2 true JP2511669Y2 (ja) 1996-09-25

Family

ID=31587427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6023590U Expired - Lifetime JP2511669Y2 (ja) 1990-06-06 1990-06-06 掘削装置

Country Status (1)

Country Link
JP (1) JP2511669Y2 (enrdf_load_html_response)

Also Published As

Publication number Publication date
JPH0417488U (enrdf_load_html_response) 1992-02-13

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