CA1069211A - Turntable speed lock system - Google Patents
Turntable speed lock systemInfo
- Publication number
- CA1069211A CA1069211A CA233,779A CA233779A CA1069211A CA 1069211 A CA1069211 A CA 1069211A CA 233779 A CA233779 A CA 233779A CA 1069211 A CA1069211 A CA 1069211A
- Authority
- CA
- Canada
- Prior art keywords
- turntable
- speed
- lock system
- airgap
- main motor
- 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
Links
- 238000004804 winding Methods 0.000 claims abstract description 15
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 2
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000013589 supplement Substances 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 6
- 230000004907 flux Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007775 late Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000007567 mass-production technique Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
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
- G11B19/28—Speed controlling, regulating, or indicating
Landscapes
- Rotational Drive Of Disk (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US504486A US3912283A (en) | 1974-09-10 | 1974-09-10 | Turntable speed lock system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1069211A true CA1069211A (en) | 1980-01-01 |
Family
ID=24006483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA233,779A Expired CA1069211A (en) | 1974-09-10 | 1975-08-20 | Turntable speed lock system |
Country Status (21)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2640899A1 (de) * | 1975-09-12 | 1977-03-24 | Plessey Handel Investment Ag | Elektromotor |
| GB1580883A (en) * | 1976-08-09 | 1980-12-10 | Rca Corp | Speed control system for a turntable |
| US4131828A (en) * | 1976-12-14 | 1978-12-26 | Sanyo Electric Co., Ltd. | Apparatus for rotatively driving a turn table |
| DE2731666C3 (de) * | 1977-07-13 | 1982-02-04 | Gerätewerk Lahr GmbH, 7630 Lahr | Anordnung zum Konstanthalten der Drehzahl eines rotierenden Elements, insbesondere eines Plattentellers eines Plattenspielers |
| DE2821296A1 (de) * | 1978-05-16 | 1979-11-22 | Licentia Gmbh | Abspielgeraet fuer eine informationstraeger-platte |
| US4239237A (en) * | 1979-05-29 | 1980-12-16 | Rca Corporation | Turntable drive system for video disc player |
| FR2466075A1 (fr) * | 1979-09-21 | 1981-03-27 | Philips Ind Commerciale | Tourne-disque a plateau directement entraine par son moteur |
| US4417332A (en) * | 1981-06-15 | 1983-11-22 | Rca Corporation | Turntable speed control |
| NL8502872A (nl) * | 1985-10-22 | 1987-05-18 | Philips Nv | Electro-magnetische aandrijfeenheid met zwenkbaar anker. |
| DE3641407A1 (de) * | 1986-12-04 | 1988-06-09 | Thomson Brandt Gmbh | Anordnung zur drehzahlregelung |
| JPH0277621A (ja) * | 1988-09-14 | 1990-03-16 | Yazaki Corp | ガスメータ |
| JP2002050108A (ja) * | 2000-07-28 | 2002-02-15 | Sony Corp | ディスク回転操作装置 |
| CN103573910B (zh) * | 2012-08-10 | 2016-04-06 | 上海新跃仪表厂 | 一种仿真转台用的大缓冲多角度限位机构 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3445117A (en) * | 1967-08-07 | 1969-05-20 | Henry V Zakrzewski | Phonograph drive |
| NL6910467A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1968-07-17 | 1970-01-20 | ||
| US3803433A (en) * | 1972-02-17 | 1974-04-09 | Gen Time Corp | Permanent magnet rotor synchronous motor |
-
1974
- 1974-09-10 US US504486A patent/US3912283A/en not_active Expired - Lifetime
-
1975
- 1975-01-01 AR AR260272A patent/AR205584A1/es active
- 1975-08-20 CA CA233,779A patent/CA1069211A/en not_active Expired
- 1975-09-01 IT IT26788/75A patent/IT1042213B/it active
- 1975-09-02 SE SE7509745A patent/SE408833B/xx unknown
- 1975-09-03 FI FI752471A patent/FI61584C/fi not_active IP Right Cessation
- 1975-09-04 ZA ZA00755672A patent/ZA755672B/xx unknown
- 1975-09-05 FR FR7527331A patent/FR2284948A1/fr active Granted
- 1975-09-05 NO NO753049A patent/NO753049L/no unknown
- 1975-09-08 BE BE159851A patent/BE833195A/xx unknown
- 1975-09-08 BR BR7505743*A patent/BR7505743A/pt unknown
- 1975-09-09 AT AT695875A patent/AT356919B/de not_active IP Right Cessation
- 1975-09-09 DK DK403075AA patent/DK141949B/da not_active IP Right Cessation
- 1975-09-09 DE DE2540079A patent/DE2540079C3/de not_active Expired
- 1975-09-09 GB GB37064/75A patent/GB1517387A/en not_active Expired
- 1975-09-09 SU SU7502181762A patent/SU576076A3/ru active
- 1975-09-09 NL NL7510616A patent/NL7510616A/xx not_active Application Discontinuation
- 1975-09-09 JP JP50109881A patent/JPS5141322B2/ja not_active Expired
- 1975-09-10 ES ES440845A patent/ES440845A1/es not_active Expired
-
1980
- 1980-05-15 HK HK269/80A patent/HK26980A/xx unknown
-
1981
- 1981-12-30 MY MY69/81A patent/MY8100069A/xx unknown
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |