JPS6125784A - 液圧式打撃装置のストロ−ク可変機構 - Google Patents

液圧式打撃装置のストロ−ク可変機構

Info

Publication number
JPS6125784A
JPS6125784A JP14731884A JP14731884A JPS6125784A JP S6125784 A JPS6125784 A JP S6125784A JP 14731884 A JP14731884 A JP 14731884A JP 14731884 A JP14731884 A JP 14731884A JP S6125784 A JPS6125784 A JP S6125784A
Authority
JP
Japan
Prior art keywords
piston
liquid chamber
valve
valve control
stroke
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
JP14731884A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6362355B2 (enrdf_load_stackoverflow
Inventor
大田　彰則
信義 福井
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.)
Furukawa Mining Co Ltd
Original Assignee
Furukawa Mining 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 Furukawa Mining Co Ltd filed Critical Furukawa Mining Co Ltd
Priority to JP14731884A priority Critical patent/JPS6125784A/ja
Publication of JPS6125784A publication Critical patent/JPS6125784A/ja
Publication of JPS6362355B2 publication Critical patent/JPS6362355B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
JP14731884A 1984-07-16 1984-07-16 液圧式打撃装置のストロ−ク可変機構 Granted JPS6125784A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14731884A JPS6125784A (ja) 1984-07-16 1984-07-16 液圧式打撃装置のストロ−ク可変機構

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14731884A JPS6125784A (ja) 1984-07-16 1984-07-16 液圧式打撃装置のストロ−ク可変機構

Publications (2)

Publication Number Publication Date
JPS6125784A true JPS6125784A (ja) 1986-02-04
JPS6362355B2 JPS6362355B2 (enrdf_load_stackoverflow) 1988-12-02

Family

ID=15427470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14731884A Granted JPS6125784A (ja) 1984-07-16 1984-07-16 液圧式打撃装置のストロ−ク可変機構

Country Status (1)

Country Link
JP (1) JPS6125784A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5415797A (en) * 1991-11-06 1995-05-16 Nippon Paint Co., Ltd. Degreasing solution and degreasing method
JP2000037661A (ja) * 1998-07-23 2000-02-08 Hitachi Constr Mach Co Ltd 加振装置
JP2009527370A (ja) * 2006-02-20 2009-07-30 アトラス コプコ ロツク ドリルス アクチボラグ 衝撃装置及び該衝撃装置を備える削岩機
WO2018003668A1 (ja) * 2016-06-28 2018-01-04 古河ロックドリル株式会社 ２ピストン型油圧打撃装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04106249U (ja) * 1991-02-22 1992-09-14 株式会社吉野工業所 液体注出容器
JP2009019463A (ja) * 2007-07-13 2009-01-29 Okumura Corp ガイドロッド付き穿孔装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5415797A (en) * 1991-11-06 1995-05-16 Nippon Paint Co., Ltd. Degreasing solution and degreasing method
JP2000037661A (ja) * 1998-07-23 2000-02-08 Hitachi Constr Mach Co Ltd 加振装置
JP2009527370A (ja) * 2006-02-20 2009-07-30 アトラス コプコ ロツク ドリルス アクチボラグ 衝撃装置及び該衝撃装置を備える削岩機
WO2018003668A1 (ja) * 2016-06-28 2018-01-04 古河ロックドリル株式会社 ２ピストン型油圧打撃装置
JPWO2018003668A1 (ja) * 2016-06-28 2019-04-18 古河ロックドリル株式会社 ２ピストン型油圧打撃装置
US11072977B2 (en) 2016-06-28 2021-07-27 Furukawa Rock Drill Co., Ltd. Two-piston hydraulic striking device

Also Published As

Publication number Publication date
JPS6362355B2 (enrdf_load_stackoverflow) 1988-12-02

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