FR2298157A1 - Automatic switch-off device for record player tone arm - has flexible contact spring and groups of permanent magnets - Google Patents

Automatic switch-off device for record player tone arm - has flexible contact spring and groups of permanent magnets

Info

Publication number
FR2298157A1
FR2298157A1 FR7501594A FR7501594A FR2298157A1 FR 2298157 A1 FR2298157 A1 FR 2298157A1 FR 7501594 A FR7501594 A FR 7501594A FR 7501594 A FR7501594 A FR 7501594A FR 2298157 A1 FR2298157 A1 FR 2298157A1
Authority
FR
France
Prior art keywords
tone arm
switch
contact spring
flexible contact
groups
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
FR7501594A
Other languages
French (fr)
Other versions
FR2298157B1 (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.)
Demaria Lapierre and Mollier SA
Original Assignee
Demaria Lapierre and Mollier SA
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 Demaria Lapierre and Mollier SA filed Critical Demaria Lapierre and Mollier SA
Priority to FR7501594A priority Critical patent/FR2298157A1/en
Publication of FR2298157A1 publication Critical patent/FR2298157A1/en
Application granted granted Critical
Publication of FR2298157B1 publication Critical patent/FR2298157B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/14—Control of operating function, e.g. switching from recording to reproducing by sensing movement or position of head, e.g. means moving in correspondence with head movements

Landscapes

  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

The automatic switch-off device, for the tone arm (10) of a record player, comprises two relatively movable components, one of which comprises of switch (11) with a flexible contact spring and the other comprising a group of magnets (12), the movement of the mobile component being controlled by the tone arm (10). The operation of the drive motor for the record turntable (15) is regulated during use by the variation of the action of the magnetic field on the switch (11), such that the motor is switched off when the tone arm (10) enters the central zone of the record on the turntable (15). Pref. the switch (11) is fixed and the group of magnets (12) are carries by a plate fixed to the pivot shaft of the tone arm (10) and rotating above the switch (11).
FR7501594A 1975-01-20 1975-01-20 Automatic switch-off device for record player tone arm - has flexible contact spring and groups of permanent magnets Granted FR2298157A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7501594A FR2298157A1 (en) 1975-01-20 1975-01-20 Automatic switch-off device for record player tone arm - has flexible contact spring and groups of permanent magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7501594A FR2298157A1 (en) 1975-01-20 1975-01-20 Automatic switch-off device for record player tone arm - has flexible contact spring and groups of permanent magnets

Publications (2)

Publication Number Publication Date
FR2298157A1 true FR2298157A1 (en) 1976-08-13
FR2298157B1 FR2298157B1 (en) 1977-11-18

Family

ID=9150025

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7501594A Granted FR2298157A1 (en) 1975-01-20 1975-01-20 Automatic switch-off device for record player tone arm - has flexible contact spring and groups of permanent magnets

Country Status (1)

Country Link
FR (1) FR2298157A1 (en)

Also Published As

Publication number Publication date
FR2298157B1 (en) 1977-11-18

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Legal Events

Date Code Title Description
ST Notification of lapse