JPH01268982A - 岩盤掘削機 - Google Patents

岩盤掘削機

Info

Publication number
JPH01268982A
JPH01268982A JP9643988A JP9643988A JPH01268982A JP H01268982 A JPH01268982 A JP H01268982A JP 9643988 A JP9643988 A JP 9643988A JP 9643988 A JP9643988 A JP 9643988A JP H01268982 A JPH01268982 A JP H01268982A
Authority
JP
Japan
Prior art keywords
compressed air
cylinder body
partition wall
weight
dust
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.)
Granted
Application number
JP9643988A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0428074B2 (enrdf_load_stackoverflow
Inventor
Katsutoshi Fujii
藤井 勝敏
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 JP9643988A priority Critical patent/JPH01268982A/ja
Publication of JPH01268982A publication Critical patent/JPH01268982A/ja
Publication of JPH0428074B2 publication Critical patent/JPH0428074B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
JP9643988A 1988-04-19 1988-04-19 岩盤掘削機 Granted JPH01268982A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9643988A JPH01268982A (ja) 1988-04-19 1988-04-19 岩盤掘削機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9643988A JPH01268982A (ja) 1988-04-19 1988-04-19 岩盤掘削機

Publications (2)

Publication Number Publication Date
JPH01268982A true JPH01268982A (ja) 1989-10-26
JPH0428074B2 JPH0428074B2 (enrdf_load_stackoverflow) 1992-05-13

Family

ID=14165049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9643988A Granted JPH01268982A (ja) 1988-04-19 1988-04-19 岩盤掘削機

Country Status (1)

Country Link
JP (1) JPH01268982A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0428074B2 (enrdf_load_stackoverflow) 1992-05-13

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