JPS61211493A - クロ−ラドリルのロツド交換装置におけるロツド落下防止装置 - Google Patents

クロ−ラドリルのロツド交換装置におけるロツド落下防止装置

Info

Publication number
JPS61211493A
JPS61211493A JP18402985A JP18402985A JPS61211493A JP S61211493 A JPS61211493 A JP S61211493A JP 18402985 A JP18402985 A JP 18402985A JP 18402985 A JP18402985 A JP 18402985A JP S61211493 A JPS61211493 A JP S61211493A
Authority
JP
Japan
Prior art keywords
rod
swing arm
sleeve
magazine
stopper
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
JP18402985A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0519637B2 (enrdf_load_stackoverflow
Inventor
克彦 飯島
布川　光男
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP18402985A priority Critical patent/JPS61211493A/ja
Publication of JPS61211493A publication Critical patent/JPS61211493A/ja
Publication of JPH0519637B2 publication Critical patent/JPH0519637B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP18402985A 1985-08-23 1985-08-23 クロ−ラドリルのロツド交換装置におけるロツド落下防止装置 Granted JPS61211493A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18402985A JPS61211493A (ja) 1985-08-23 1985-08-23 クロ−ラドリルのロツド交換装置におけるロツド落下防止装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18402985A JPS61211493A (ja) 1985-08-23 1985-08-23 クロ−ラドリルのロツド交換装置におけるロツド落下防止装置

Publications (2)

Publication Number Publication Date
JPS61211493A true JPS61211493A (ja) 1986-09-19
JPH0519637B2 JPH0519637B2 (enrdf_load_stackoverflow) 1993-03-17

Family

ID=16146104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18402985A Granted JPS61211493A (ja) 1985-08-23 1985-08-23 クロ−ラドリルのロツド交換装置におけるロツド落下防止装置

Country Status (1)

Country Link
JP (1) JPS61211493A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0519637B2 (enrdf_load_stackoverflow) 1993-03-17

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