JPH0351874B2 - - Google Patents

Info

Publication number
JPH0351874B2
JPH0351874B2 JP61314524A JP31452486A JPH0351874B2 JP H0351874 B2 JPH0351874 B2 JP H0351874B2 JP 61314524 A JP61314524 A JP 61314524A JP 31452486 A JP31452486 A JP 31452486A JP H0351874 B2 JPH0351874 B2 JP H0351874B2
Authority
JP
Japan
Prior art keywords
air hammer
bit
air
bits
roller
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
JP61314524A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63167889A (ja
Inventor
Hiroyuki Kawasaki
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.)
Tone Boring Co Ltd
Original Assignee
Tone Boring 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 Tone Boring Co Ltd filed Critical Tone Boring Co Ltd
Priority to JP31452486A priority Critical patent/JPS63167889A/ja
Publication of JPS63167889A publication Critical patent/JPS63167889A/ja
Publication of JPH0351874B2 publication Critical patent/JPH0351874B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP31452486A 1986-12-27 1986-12-27 マルチエアハンマ装置 Granted JPS63167889A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31452486A JPS63167889A (ja) 1986-12-27 1986-12-27 マルチエアハンマ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31452486A JPS63167889A (ja) 1986-12-27 1986-12-27 マルチエアハンマ装置

Publications (2)

Publication Number Publication Date
JPS63167889A JPS63167889A (ja) 1988-07-11
JPH0351874B2 true JPH0351874B2 (enEXAMPLES) 1991-08-08

Family

ID=18054321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31452486A Granted JPS63167889A (ja) 1986-12-27 1986-12-27 マルチエアハンマ装置

Country Status (1)

Country Link
JP (1) JPS63167889A (enEXAMPLES)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0547817Y2 (enEXAMPLES) * 1988-12-12 1993-12-16
CN102434108A (zh) * 2011-12-23 2012-05-02 中冶交通工程技术有限公司 综合碎岩大口径组合钻头
CN102678053B (zh) * 2012-05-18 2015-08-19 西南石油大学 一种交叉刮切-冲击复合式钻头
CN102678051B (zh) * 2012-05-18 2017-05-03 西南石油大学 一种具有冲击切削结构的盘式复合钻头
CN102678052A (zh) * 2012-05-18 2012-09-19 西南石油大学 一种盘刀复合钻头
CN102678050B (zh) * 2012-05-18 2015-10-28 西南石油大学 一种具有冲击切削结构的牙轮复合钻头
CN105156039A (zh) * 2015-07-07 2015-12-16 西南石油大学 一种主动伸缩式复合钻头

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617510A (en) * 1979-07-23 1981-02-19 Fujitsu Ltd Surface elastic wave element
JPS5617509A (en) * 1979-07-23 1981-02-19 Sony Corp Control circuit of frequency characteristics
JPS61122394A (ja) * 1984-11-15 1986-06-10 東急建設株式会社 埋設管推進装置

Also Published As

Publication number Publication date
JPS63167889A (ja) 1988-07-11

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