JPS6471670A - Power tool - Google Patents

Power tool

Info

Publication number
JPS6471670A
JPS6471670A JP23065287A JP23065287A JPS6471670A JP S6471670 A JPS6471670 A JP S6471670A JP 23065287 A JP23065287 A JP 23065287A JP 23065287 A JP23065287 A JP 23065287A JP S6471670 A JPS6471670 A JP S6471670A
Authority
JP
Japan
Prior art keywords
clutch
driven
driving shaft
signal
fixed time
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.)
Pending
Application number
JP23065287A
Other languages
Japanese (ja)
Inventor
Katsumi Uratani
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.)
Shibaura Mechatronics Corp
Original Assignee
Shibaura Engineering Works 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 Shibaura Engineering Works Co Ltd filed Critical Shibaura Engineering Works Co Ltd
Priority to JP23065287A priority Critical patent/JPS6471670A/en
Publication of JPS6471670A publication Critical patent/JPS6471670A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To avoid complicated turning on/off operation for an electromagnetic clutch by arranging a clutch driving circuit which drive the electromagnet clutch only for a fixed time so as to connect a driving shaft and a driven shaft together after a speed of a motor reaches a predetermined value. CONSTITUTION: When a switch 23 is turned on, a demand signal 24 is outputted from an operation circuit 20 so as to be stored in a storage means 30. Subsequently, a motor 2 is driven by means of a driving circuit 40 so as to rotate a driving shaft, and a rotation speed of the driving shaft is detected by means of a detector 50. When the detected speed signal 51 reaches a set level, a comparison signal 67 is outputted from a comparison circuit 60. According to the comparison signal 67, storage for a demand signal 24 in the storage means 30 is reset. As a result, drive for the motor 2 is stopped. On the other hand, an electromagnetic clutch is driven by means of a clutch driving circuit 70 only for a fixed time after the output of the comparison signal 67, and a driving shaft, which continues rotating according to the rotation of a flywheel, and a driven shaft are connected together. Because of this connection, rotational force is transmitted from the flywheel to a tool head only for a fixed time so as to fasten/release an object.
JP23065287A 1987-09-14 1987-09-14 Power tool Pending JPS6471670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23065287A JPS6471670A (en) 1987-09-14 1987-09-14 Power tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23065287A JPS6471670A (en) 1987-09-14 1987-09-14 Power tool

Publications (1)

Publication Number Publication Date
JPS6471670A true JPS6471670A (en) 1989-03-16

Family

ID=16911154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23065287A Pending JPS6471670A (en) 1987-09-14 1987-09-14 Power tool

Country Status (1)

Country Link
JP (1) JPS6471670A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007050488A (en) * 2005-08-19 2007-03-01 Uryu Seisaku Ltd Power screwdriver
JP2011093087A (en) * 2009-09-30 2011-05-12 Hitachi Koki Co Ltd Driving machine
JP2015058517A (en) * 2013-09-19 2015-03-30 株式会社マキタ Working tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852793A (en) * 1981-09-25 1983-03-29 池田　眞二 Control circuit for vending machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852793A (en) * 1981-09-25 1983-03-29 池田　眞二 Control circuit for vending machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007050488A (en) * 2005-08-19 2007-03-01 Uryu Seisaku Ltd Power screwdriver
JP2011093087A (en) * 2009-09-30 2011-05-12 Hitachi Koki Co Ltd Driving machine
JP2015058517A (en) * 2013-09-19 2015-03-30 株式会社マキタ Working tool

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