JPS58207485A - 竪孔掘削機用深度検出装置 - Google Patents

竪孔掘削機用深度検出装置

Info

Publication number
JPS58207485A
JPS58207485A JP57088790A JP8879082A JPS58207485A JP S58207485 A JPS58207485 A JP S58207485A JP 57088790 A JP57088790 A JP 57088790A JP 8879082 A JP8879082 A JP 8879082A JP S58207485 A JPS58207485 A JP S58207485A
Authority
JP
Japan
Prior art keywords
depth
sheave
switch
wire rope
bracket
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
JP57088790A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6329079B2 (enrdf_load_stackoverflow
Inventor
久住　宏
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 JP57088790A priority Critical patent/JPS58207485A/ja
Publication of JPS58207485A publication Critical patent/JPS58207485A/ja
Publication of JPS6329079B2 publication Critical patent/JPS6329079B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
JP57088790A 1982-05-27 1982-05-27 竪孔掘削機用深度検出装置 Granted JPS58207485A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57088790A JPS58207485A (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
JP57088790A JPS58207485A (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
JPS58207485A true JPS58207485A (ja) 1983-12-02
JPS6329079B2 JPS6329079B2 (enrdf_load_stackoverflow) 1988-06-10

Family

ID=13952632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57088790A Granted JPS58207485A (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) JPS58207485A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6329079B2 (enrdf_load_stackoverflow) 1988-06-10

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