JPH0349350B2 - - Google Patents

Info

Publication number
JPH0349350B2
JPH0349350B2 JP60122034A JP12203485A JPH0349350B2 JP H0349350 B2 JPH0349350 B2 JP H0349350B2 JP 60122034 A JP60122034 A JP 60122034A JP 12203485 A JP12203485 A JP 12203485A JP H0349350 B2 JPH0349350 B2 JP H0349350B2
Authority
JP
Japan
Prior art keywords
air supply
variable volume
volume chamber
supply hose
striking element
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 - Lifetime
Application number
JP60122034A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61282587A (ja
Inventor
Tadao Ootsuka
Hiromoto Horie
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.)
Kyokuto Kaihatsu Kogyo Co Ltd
Original Assignee
Kyokuto Kaihatsu Kogyo 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 Kyokuto Kaihatsu Kogyo Co Ltd filed Critical Kyokuto Kaihatsu Kogyo Co Ltd
Priority to JP12203485A priority Critical patent/JPS61282587A/ja
Publication of JPS61282587A publication Critical patent/JPS61282587A/ja
Publication of JPH0349350B2 publication Critical patent/JPH0349350B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP12203485A 1985-06-05 1985-06-05 逆進可能な地中貫孔機 Granted JPS61282587A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12203485A JPS61282587A (ja) 1985-06-05 1985-06-05 逆進可能な地中貫孔機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12203485A JPS61282587A (ja) 1985-06-05 1985-06-05 逆進可能な地中貫孔機

Publications (2)

Publication Number Publication Date
JPS61282587A JPS61282587A (ja) 1986-12-12
JPH0349350B2 true JPH0349350B2 (enExample) 1991-07-29

Family

ID=14825956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12203485A Granted JPS61282587A (ja) 1985-06-05 1985-06-05 逆進可能な地中貫孔機

Country Status (1)

Country Link
JP (1) JPS61282587A (enExample)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2157259C3 (de) * 1971-11-18 1973-06-07 Tracto Technik Rammbohrgerät
DE2340751C2 (de) * 1973-08-11 1974-09-26 Tracto-Technik Paul Schmidt, 5940 Lennestadt Steuervorrichtung für den Vor- und Rücklauf von Rammbohrgeräten

Also Published As

Publication number Publication date
JPS61282587A (ja) 1986-12-12

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