JPS5695532A - Controlling system of electrically driven tool for tapping - Google Patents

Controlling system of electrically driven tool for tapping

Info

Publication number
JPS5695532A
JPS5695532A JP17027779A JP17027779A JPS5695532A JP S5695532 A JPS5695532 A JP S5695532A JP 17027779 A JP17027779 A JP 17027779A JP 17027779 A JP17027779 A JP 17027779A JP S5695532 A JPS5695532 A JP S5695532A
Authority
JP
Japan
Prior art keywords
motor
tapping
electrically driven
main switch
breakdown
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
JP17027779A
Other languages
Japanese (ja)
Other versions
JPH0123252B2 (en
Inventor
Katsuyuki Totsu
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP17027779A priority Critical patent/JPS5695532A/en
Publication of JPS5695532A publication Critical patent/JPS5695532A/en
Publication of JPH0123252B2 publication Critical patent/JPH0123252B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To previously prevent a tapping drill and a screw groove from damage or breakdown by a method wherein a motor is reversely turned for a given time at the point a complete screw cutting is performed during a screw cutting working, and a tapping drill is automatically made to return from a screw cutting hole part.
CONSTITUTION: When a tapping operation is performed while a main switch S1 of the tapping electrically driven tool is disconnected, if the main switch S1 is connected to a (b) contact side, an electrically driven motor M is turned forwardly and if the main switch S1 is disconnected from the (b) contact, the conduction to the motor M is interrupted and at the same time the terminals T1, T2 are short-circuited and an electrical loop is formed between armatures of the motor M and then, a so-called dynamic braking is performed to momentarily stop the operation. Further, the motor M is reversely turned immediately by means of a switching of a polarity change-over switch S5. The reverse rotation of the motor M is continued for a given time and then, it is stopped. With this, the tapping drill and the screw groove are prevented previously from damage or breakdown.
COPYRIGHT: (C)1981,JPO&Japio
JP17027779A 1979-12-28 1979-12-28 Controlling system of electrically driven tool for tapping Granted JPS5695532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17027779A JPS5695532A (en) 1979-12-28 1979-12-28 Controlling system of electrically driven tool for tapping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17027779A JPS5695532A (en) 1979-12-28 1979-12-28 Controlling system of electrically driven tool for tapping

Publications (2)

Publication Number Publication Date
JPS5695532A true JPS5695532A (en) 1981-08-03
JPH0123252B2 JPH0123252B2 (en) 1989-05-01

Family

ID=15901957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17027779A Granted JPS5695532A (en) 1979-12-28 1979-12-28 Controlling system of electrically driven tool for tapping

Country Status (1)

Country Link
JP (1) JPS5695532A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142298U (en) * 1976-04-23 1977-10-28
JPS5479416A (en) * 1977-12-08 1979-06-25 Katsuyuki Totsu Control system for clutch power rotary tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52142298U (en) * 1976-04-23 1977-10-28
JPS5479416A (en) * 1977-12-08 1979-06-25 Katsuyuki Totsu Control system for clutch power rotary tool

Also Published As

Publication number Publication date
JPH0123252B2 (en) 1989-05-01

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