FR2233674A1 - Record player turntable drive - turntable directly driven by electric motor eliminating mechanical transmission - Google Patents

Record player turntable drive - turntable directly driven by electric motor eliminating mechanical transmission

Info

Publication number
FR2233674A1
FR2233674A1 FR7321199A FR7321199A FR2233674A1 FR 2233674 A1 FR2233674 A1 FR 2233674A1 FR 7321199 A FR7321199 A FR 7321199A FR 7321199 A FR7321199 A FR 7321199A FR 2233674 A1 FR2233674 A1 FR 2233674A1
Authority
FR
France
Prior art keywords
turntable
electric motor
directly driven
record player
mechanical transmission
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
FR7321199A
Other languages
French (fr)
Other versions
FR2233674B1 (en
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.)
HUMBERT JACQUES FR
Original Assignee
HUMBERT JACQUES FR
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 HUMBERT JACQUES FR filed Critical HUMBERT JACQUES FR
Priority to FR7321199A priority Critical patent/FR2233674A1/en
Publication of FR2233674A1 publication Critical patent/FR2233674A1/en
Application granted granted Critical
Publication of FR2233674B1 publication Critical patent/FR2233674B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Rotational Drive Of Disk (AREA)

Abstract

The record player turntable (2) is directly driven by a synchronous or linear electric motor using an inductance (6) secured to the turntable support (1), cooperating with an annular inductance (5) carried by the turntable surface, and coaxial with the latter. The turntable (2) is rigidly secured to its support shaft (3) and the shaft (3) is supported for rotation relative to the turntable support (1) by a bearing (4) at its bottom end. The former inductance (6) is preferably supplied with an AC, the frequency of which is selected to be one of several different values, for allowing various turntable speeds, by an electronic circuit.
FR7321199A 1973-06-12 1973-06-12 Record player turntable drive - turntable directly driven by electric motor eliminating mechanical transmission Granted FR2233674A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7321199A FR2233674A1 (en) 1973-06-12 1973-06-12 Record player turntable drive - turntable directly driven by electric motor eliminating mechanical transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7321199A FR2233674A1 (en) 1973-06-12 1973-06-12 Record player turntable drive - turntable directly driven by electric motor eliminating mechanical transmission

Publications (2)

Publication Number Publication Date
FR2233674A1 true FR2233674A1 (en) 1975-01-10
FR2233674B1 FR2233674B1 (en) 1976-04-23

Family

ID=9120789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7321199A Granted FR2233674A1 (en) 1973-06-12 1973-06-12 Record player turntable drive - turntable directly driven by electric motor eliminating mechanical transmission

Country Status (1)

Country Link
FR (1) FR2233674A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844571A1 (en) * 1977-10-15 1979-04-19 Horiba Ltd MOTOR FOR OPTICAL MODULATION PROCESS
EP0796700A2 (en) * 1996-03-20 1997-09-24 RAINER S.r.l. Drive device for rotating a machine tool table

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2844571A1 (en) * 1977-10-15 1979-04-19 Horiba Ltd MOTOR FOR OPTICAL MODULATION PROCESS
EP0796700A2 (en) * 1996-03-20 1997-09-24 RAINER S.r.l. Drive device for rotating a machine tool table
EP0796700A3 (en) * 1996-03-20 1997-10-08 RAINER S.r.l. Drive device for rotating a machine tool table
US5924349A (en) * 1996-03-20 1999-07-20 Rainer S.R.L. Drive device for rotating a machine tool table

Also Published As

Publication number Publication date
FR2233674B1 (en) 1976-04-23

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Legal Events

Date Code Title Description
ST Notification of lapse