JPS6329078B2 - - Google Patents

Info

Publication number
JPS6329078B2
JPS6329078B2 JP57088789A JP8878982A JPS6329078B2 JP S6329078 B2 JPS6329078 B2 JP S6329078B2 JP 57088789 A JP57088789 A JP 57088789A JP 8878982 A JP8878982 A JP 8878982A JP S6329078 B2 JPS6329078 B2 JP S6329078B2
Authority
JP
Japan
Prior art keywords
depth
buzzer
wire rope
tool
lamp
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
Application number
JP57088789A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58207484A (ja
Inventor
Hiroshi Kusumi
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP57088789A priority Critical patent/JPS58207484A/ja
Publication of JPS58207484A publication Critical patent/JPS58207484A/ja
Publication of JPS6329078B2 publication Critical patent/JPS6329078B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
JP57088789A 1982-05-27 1982-05-27 竪孔掘削機用深度検出装置 Granted JPS58207484A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57088789A JPS58207484A (ja) 1982-05-27 1982-05-27 竪孔掘削機用深度検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57088789A JPS58207484A (ja) 1982-05-27 1982-05-27 竪孔掘削機用深度検出装置

Publications (2)

Publication Number Publication Date
JPS58207484A JPS58207484A (ja) 1983-12-02
JPS6329078B2 true JPS6329078B2 (enExample) 1988-06-10

Family

ID=13952601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57088789A Granted JPS58207484A (ja) 1982-05-27 1982-05-27 竪孔掘削機用深度検出装置

Country Status (1)

Country Link
JP (1) JPS58207484A (enExample)

Also Published As

Publication number Publication date
JPS58207484A (ja) 1983-12-02

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