JPH0446689B2 - - Google Patents

Info

Publication number
JPH0446689B2
JPH0446689B2 JP3502686A JP3502686A JPH0446689B2 JP H0446689 B2 JPH0446689 B2 JP H0446689B2 JP 3502686 A JP3502686 A JP 3502686A JP 3502686 A JP3502686 A JP 3502686A JP H0446689 B2 JPH0446689 B2 JP H0446689B2
Authority
JP
Japan
Prior art keywords
motor
drill
pulse
load
duty ratio
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
JP3502686A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62193715A (ja
Inventor
Michihiro Shoji
Toshio Mikitani
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.)
Nitto Giken KK
Original Assignee
Nitto Giken KK
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 Nitto Giken KK filed Critical Nitto Giken KK
Priority to JP3502686A priority Critical patent/JPS62193715A/ja
Priority to US07/082,340 priority patent/US4780654A/en
Publication of JPS62193715A publication Critical patent/JPS62193715A/ja
Publication of JPH0446689B2 publication Critical patent/JPH0446689B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drilling And Boring (AREA)
JP3502686A 1986-02-21 1986-02-21 電磁ベ−スで工作物に固定可能な穿孔機の制御装置 Granted JPS62193715A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP3502686A JPS62193715A (ja) 1986-02-21 1986-02-21 電磁ベ−スで工作物に固定可能な穿孔機の制御装置
US07/082,340 US4780654A (en) 1986-02-21 1987-08-06 Control apparatus for drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3502686A JPS62193715A (ja) 1986-02-21 1986-02-21 電磁ベ−スで工作物に固定可能な穿孔機の制御装置

Publications (2)

Publication Number Publication Date
JPS62193715A JPS62193715A (ja) 1987-08-25
JPH0446689B2 true JPH0446689B2 (pm) 1992-07-30

Family

ID=12430547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3502686A Granted JPS62193715A (ja) 1986-02-21 1986-02-21 電磁ベ−スで工作物に固定可能な穿孔機の制御装置

Country Status (1)

Country Link
JP (1) JPS62193715A (pm)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH062609B2 (ja) * 1987-08-04 1994-01-12 日本化学工業株式会社 スラグ処理剤
JPH0777687B2 (ja) * 1990-01-26 1995-08-23 日東工器株式会社 ドリル装置

Also Published As

Publication number Publication date
JPS62193715A (ja) 1987-08-25

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