JPS6329079B2 - - Google Patents

Info

Publication number
JPS6329079B2
JPS6329079B2 JP57088790A JP8879082A JPS6329079B2 JP S6329079 B2 JPS6329079 B2 JP S6329079B2 JP 57088790 A JP57088790 A JP 57088790A JP 8879082 A JP8879082 A JP 8879082A JP S6329079 B2 JPS6329079 B2 JP S6329079B2
Authority
JP
Japan
Prior art keywords
depth
switch
sheave
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.)
Expired
Application number
JP57088790A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58207485A (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 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

  • Machine Tool Sensing Apparatuses (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Earth Drilling (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 JPS58207485A (ja) 1983-12-02
JPS6329079B2 true 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
JPS58207485A (ja) 1983-12-02

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