JPS5629454A - Electric motor - Google Patents

Electric motor

Info

Publication number
JPS5629454A
JPS5629454A JP10361679A JP10361679A JPS5629454A JP S5629454 A JPS5629454 A JP S5629454A JP 10361679 A JP10361679 A JP 10361679A JP 10361679 A JP10361679 A JP 10361679A JP S5629454 A JPS5629454 A JP S5629454A
Authority
JP
Japan
Prior art keywords
plate
rotor
permanent magnet
york
attached
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
JP10361679A
Other languages
Japanese (ja)
Inventor
Hiroshi Saito
Noboru Ichihara
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.)
Nidec Advanced Motor Corp
Original Assignee
Nidec Servo Corp
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 Nidec Servo Corp filed Critical Nidec Servo Corp
Priority to JP10361679A priority Critical patent/JPS5629454A/en
Publication of JPS5629454A publication Critical patent/JPS5629454A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
    • G11B3/08535—Driving the head
    • G11B3/08564—Driving the head the head being driven by means independent of the record carrier driving means
    • G11B3/08567—Driving the head the head being driven by means independent of the record carrier driving means for pivoting pick-up arms
    • G11B3/0857—Driving the head the head being driven by means independent of the record carrier driving means for pivoting pick-up arms driven by means which support the pick-up arm

Abstract

PURPOSE:To obtain the electric motor exercise several works by a method wherein at least two rotor plates respectively separately rotatable are arranged between a permanent magnet and a york plate which are opposed to each other at a given distance of space. CONSTITUTION:The ring-shaped permanent magnet 10 magnetized in the axial direction is attached to a fixed supporting plate 12 through a fitting plate 11, and the york plate 13 facing to the permanent magnet 10 at a given distance of space is attached to the fixed supporting plate 12 with a shore 14. There are provided between the permanent magnet 10 and the york plate 13 a rotor plate 4 revolving integratingly with a rotating shaft 2, and a rotor plate 7 revolving round the bearing 5 attached to the fixed supporting plate 12; and exciting separately exciting coils 3, 6 of the respective rotor plates 4, 7 produces torque separately on the rotor plates 4, 7. The rotor plate 4 is used for moving horizontally a tone-arm 1, and the rotor plate 7 is used for moving vertically the tone-arm 1 with a swash plate cam 8 mounted on the rotor plate, for example.
JP10361679A 1979-08-16 1979-08-16 Electric motor Pending JPS5629454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10361679A JPS5629454A (en) 1979-08-16 1979-08-16 Electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10361679A JPS5629454A (en) 1979-08-16 1979-08-16 Electric motor

Publications (1)

Publication Number Publication Date
JPS5629454A true JPS5629454A (en) 1981-03-24

Family

ID=14358697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10361679A Pending JPS5629454A (en) 1979-08-16 1979-08-16 Electric motor

Country Status (1)

Country Link
JP (1) JPS5629454A (en)

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