GB1376670A - Driving mechanism for the turntable of record players - Google Patents

Driving mechanism for the turntable of record players

Info

Publication number
GB1376670A
GB1376670A GB4445772A GB4445772A GB1376670A GB 1376670 A GB1376670 A GB 1376670A GB 4445772 A GB4445772 A GB 4445772A GB 4445772 A GB4445772 A GB 4445772A GB 1376670 A GB1376670 A GB 1376670A
Authority
GB
United Kingdom
Prior art keywords
wheel
shaft
turntable
motor
torque
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.)
Expired
Application number
GB4445772A
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.)
Industriaktiebolaget Luxor
Original Assignee
Industriaktiebolaget Luxor
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 Industriaktiebolaget Luxor filed Critical Industriaktiebolaget Luxor
Publication of GB1376670A publication Critical patent/GB1376670A/en
Expired 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
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/26—Speed-changing arrangements; Reversing arrangements; Drive-transfer means therefor

Abstract

1376670 Speed changing LUXORINDUSTRI AB 26 Sept 1972 [27 Sept 1971] 44457/72 Heading G5R [Also in Division F2] A drive for a record-player turntable 3, providing two-speed ratios both in the same direction, comprises a friction wheel 14 arranged between and movable radially of the turntable selectively into engagement with either one of two concentric flanges 5, 6 on the turntable according to the direction of rotation of a driving electric motor 9, the wheel 14 being freely mounted on a shaft 15 carried in a bracket 16 which can pivot about an offset axis 17, the wheel 14 being also subject to brake drag as by engagement of felt-padded blade springs 24, carried by the wheel 14, with a part 18 secured to the shaft 15, such brake drag causing the bracket to swing about its piovt axis 17 in one or other direction in accordance with the direction of the torque applied to the friction wheel 14 by the motor 9. As shown the wheel 14 is fast with a pulley 13 driven through a belt 12 by the motor 9. Alternatively, the friction wheel 14 may be directly mounted on a pivoted motor. The take the brake drag torque the shaft 15 is stationed by a pawl 26 engaging a toothed wheel 20 meshing a smaller wheel 19 fast on the shaft 15, the pawl being released to free the shaft of drag torque by lowering the pick-up arm 2 to its idle support position. The traction pressure of the friction wheel 14 against the flange 5 or 6 increases with drive torque.
GB4445772A 1971-09-27 1972-09-26 Driving mechanism for the turntable of record players Expired GB1376670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE12154/71A SE353615B (en) 1971-09-27 1971-09-27

Publications (1)

Publication Number Publication Date
GB1376670A true GB1376670A (en) 1974-12-11

Family

ID=20295243

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4445772A Expired GB1376670A (en) 1971-09-27 1972-09-26 Driving mechanism for the turntable of record players

Country Status (4)

Country Link
US (1) US3833225A (en)
DE (1) DE2246949C3 (en)
GB (1) GB1376670A (en)
SE (1) SE353615B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2423626A (en) * 2005-02-24 2006-08-30 Arthur Haroutoun Khoubesserian Record player drive arrangement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9200956D0 (en) * 1992-03-27 1992-03-27 Peter Forsell DEVICE FOR DRIVING PLAYERS WITH FLY WHEELS ACCORDING TO THE AIR STORAGE PRINCIPLE WITH HIGH ROTATION SPEED AND MASS (GYRO)
US5561658A (en) * 1994-02-06 1996-10-01 Nakamichi Corporation Friction drive for a disc player

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563649A (en) * 1948-10-13 1951-08-07 Gen Ind Co Two-speed friction drive transmission for phonograph turntables
GB766560A (en) * 1954-01-20 1957-01-23 Emi Ltd Improvements in or relating to sound recording or reproducing apparatus
FR1425761A (en) * 1965-02-26 1966-01-24 Training device in particular for an record player, tape recorder or other, as well as the devices provided with this training device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2423626A (en) * 2005-02-24 2006-08-30 Arthur Haroutoun Khoubesserian Record player drive arrangement

Also Published As

Publication number Publication date
DE2246949C3 (en) 1975-06-12
SE353615B (en) 1973-02-05
US3833225A (en) 1974-09-03
DE2246949A1 (en) 1973-04-12
DE2246949B2 (en) 1974-10-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee