CA1074912A - Disc drive linear actuator and control system therefor - Google Patents
Disc drive linear actuator and control system thereforInfo
- Publication number
- CA1074912A CA1074912A CA230,991A CA230991A CA1074912A CA 1074912 A CA1074912 A CA 1074912A CA 230991 A CA230991 A CA 230991A CA 1074912 A CA1074912 A CA 1074912A
- Authority
- CA
- Canada
- Prior art keywords
- roller
- carriage
- axis
- drive shaft
- rotation
- 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
- 230000033001 locomotion Effects 0.000 claims abstract description 66
- 238000013500 data storage Methods 0.000 claims abstract description 9
- 238000012546 transfer Methods 0.000 claims description 41
- 230000008859 change Effects 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000003405 preventing effect Effects 0.000 claims description 11
- 230000003993 interaction Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000008093 supporting effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000011161 development Methods 0.000 claims 3
- 230000018109 developmental process Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 5
- 241001131688 Coracias garrulus Species 0.000 description 90
- 230000007246 mechanism Effects 0.000 description 8
- 230000001133 acceleration Effects 0.000 description 7
- 230000015654 memory Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
Landscapes
- Moving Of Heads (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA327,021A CA1076254A (en) | 1974-07-08 | 1979-05-04 | Disc drive linear actuator and control system therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US486408A US3922718A (en) | 1974-07-08 | 1974-07-08 | Disc drive linear actuator and control system therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1074912A true CA1074912A (en) | 1980-04-01 |
Family
ID=23931768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA230,991A Expired CA1074912A (en) | 1974-07-08 | 1975-07-08 | Disc drive linear actuator and control system therefor |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3922718A (OSRAM) |
| JP (1) | JPS5131212A (OSRAM) |
| AU (1) | AU499431B2 (OSRAM) |
| BE (1) | BE831071A (OSRAM) |
| CA (1) | CA1074912A (OSRAM) |
| CH (2) | CH592941A5 (OSRAM) |
| DE (1) | DE2529793A1 (OSRAM) |
| FR (3) | FR2307333A1 (OSRAM) |
| GB (5) | GB1519963A (OSRAM) |
| IT (1) | IT1054638B (OSRAM) |
| NL (1) | NL7507730A (OSRAM) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4012778A (en) * | 1975-11-19 | 1977-03-15 | Xerox Corporation | Linear actuator |
| US4012780A (en) * | 1975-11-19 | 1977-03-15 | Xerox Corporation | Linear actuator |
| US4012779A (en) * | 1975-11-19 | 1977-03-15 | Xerox Corporation | Linear actuator |
| US4305104A (en) * | 1980-02-28 | 1981-12-08 | Ncr Corporation | Information storage position control apparatus |
| US4428012A (en) | 1981-05-04 | 1984-01-24 | Miniscribe Corporation | Method and apparatus for storing and retrieving information |
| US4648325A (en) * | 1985-06-20 | 1987-03-10 | Heico Inc. | Linear drive unit |
| JPS6280880A (ja) * | 1985-10-03 | 1987-04-14 | Fuji Photo Film Co Ltd | ヘツドキヤリツジの案内機構 |
| US4825984A (en) * | 1987-03-02 | 1989-05-02 | Unisys Corp. | Visco-elastic couple for magnet actuator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3643242A (en) * | 1970-07-09 | 1972-02-15 | Xerox Corp | Transducer displacement control in movable head-type storage disk systems |
| US3721967A (en) * | 1971-08-02 | 1973-03-20 | Ibm | Head carriage assembly for magnetic disk storage drive |
-
1974
- 1974-07-08 US US486408A patent/US3922718A/en not_active Expired - Lifetime
-
1975
- 1975-06-27 NL NL7507730A patent/NL7507730A/xx not_active Application Discontinuation
- 1975-06-30 GB GB1730/77A patent/GB1519963A/en not_active Expired
- 1975-06-30 GB GB27484/75A patent/GB1519962A/en not_active Expired
- 1975-06-30 GB GB3439/78A patent/GB1519965A/en not_active Expired
- 1975-06-30 GB GB3437/78A patent/GB1519964A/en not_active Expired
- 1975-07-02 FR FR7520733A patent/FR2307333A1/fr not_active Withdrawn
- 1975-07-03 DE DE19752529793 patent/DE2529793A1/de not_active Withdrawn
- 1975-07-04 IT IT25122/75A patent/IT1054638B/it active
- 1975-07-07 AU AU82806/75A patent/AU499431B2/en not_active Ceased
- 1975-07-07 JP JP50083377A patent/JPS5131212A/ja active Pending
- 1975-07-07 BE BE158041A patent/BE831071A/xx unknown
- 1975-07-08 CA CA230,991A patent/CA1074912A/en not_active Expired
- 1975-07-08 CH CH891975A patent/CH592941A5/xx not_active IP Right Cessation
- 1975-07-08 CH CH538077A patent/CH597671A5/xx not_active IP Right Cessation
-
1976
- 1976-03-11 FR FR7607009A patent/FR2295521A1/fr not_active Withdrawn
- 1976-03-11 FR FR7607008A patent/FR2295520A1/fr not_active Withdrawn
-
1977
- 1977-02-11 GB GB5917/77A patent/GB1506943A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2529793A1 (de) | 1976-01-29 |
| FR2295520A1 (fr) | 1976-07-16 |
| CH592941A5 (OSRAM) | 1977-11-15 |
| GB1506943A (en) | 1978-04-12 |
| IT1054638B (it) | 1981-11-30 |
| GB1519962A (en) | 1978-08-02 |
| GB1519965A (en) | 1978-08-02 |
| CH597671A5 (OSRAM) | 1978-04-14 |
| NL7507730A (nl) | 1975-09-30 |
| JPS5131212A (en) | 1976-03-17 |
| FR2295521A1 (fr) | 1976-07-16 |
| GB1519964A (en) | 1978-08-02 |
| GB1519963A (en) | 1978-08-02 |
| FR2307333A1 (fr) | 1976-11-05 |
| AU499431B2 (en) | 1979-04-12 |
| BE831071A (fr) | 1975-11-03 |
| AU8280675A (en) | 1977-01-13 |
| US3922718A (en) | 1975-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |