JPS5526080A - Brake for rotary body - Google Patents

Brake for rotary body

Info

Publication number
JPS5526080A
JPS5526080A JP9927578A JP9927578A JPS5526080A JP S5526080 A JPS5526080 A JP S5526080A JP 9927578 A JP9927578 A JP 9927578A JP 9927578 A JP9927578 A JP 9927578A JP S5526080 A JPS5526080 A JP S5526080A
Authority
JP
Japan
Prior art keywords
motor
rotary body
electromotive force
closed
changeover switch
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
JP9927578A
Other languages
Japanese (ja)
Inventor
Masayuki Yoshitome
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9927578A priority Critical patent/JPS5526080A/en
Publication of JPS5526080A publication Critical patent/JPS5526080A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

PURPOSE: To smoothly stop a rotary body which has a large moment of inertia, by automatically and electrically brake the rotary body by the counter electromotive force of a motor.
CONSTITUTION: When a changeover switch SW is closed, the motor 102 is rotated through a resistor R1 and a transistor Q1. When the changeover switch is opened in response to a desired operation of the rotary body, a driving power source 101 is disconnected from the motor 102 and connected to an electromgnetic relay 105. At that time, a driving coil DC is energized, a normally closed contact ta is closed and a load resistor R2 is coupled in parallel with the motor 102. The counter electromotive force caused by the inertial rotation of the motor 102 is consumed by the load resistor R2, namely, dynamic braking is effected. The rotation of the motor is thus quickly and smoothly stopped.
COPYRIGHT: (C)1980,JPO&Japio
JP9927578A 1978-08-15 1978-08-15 Brake for rotary body Pending JPS5526080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9927578A JPS5526080A (en) 1978-08-15 1978-08-15 Brake for rotary body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9927578A JPS5526080A (en) 1978-08-15 1978-08-15 Brake for rotary body

Publications (1)

Publication Number Publication Date
JPS5526080A true JPS5526080A (en) 1980-02-25

Family

ID=14243117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9927578A Pending JPS5526080A (en) 1978-08-15 1978-08-15 Brake for rotary body

Country Status (1)

Country Link
JP (1) JPS5526080A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767970A (en) * 1986-12-22 1988-08-30 Ampex Corporation Dynamic brake control for a tape drive system
US4910444A (en) * 1987-06-12 1990-03-20 Aktiebolaget Electrolux Braking arrangement for a motor-driven cable reel
US4922161A (en) * 1989-03-31 1990-05-01 Malcolm T. Gilliland Method and apparatus for improving the regulation of the speed of a motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767970A (en) * 1986-12-22 1988-08-30 Ampex Corporation Dynamic brake control for a tape drive system
US4910444A (en) * 1987-06-12 1990-03-20 Aktiebolaget Electrolux Braking arrangement for a motor-driven cable reel
US4922161A (en) * 1989-03-31 1990-05-01 Malcolm T. Gilliland Method and apparatus for improving the regulation of the speed of a motor

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