GB2013413A - Linear stepper-motor drive for a read/write head in a floppy disc system - Google Patents

Linear stepper-motor drive for a read/write head in a floppy disc system

Info

Publication number
GB2013413A
GB2013413A GB7902353A GB7902353A GB2013413A GB 2013413 A GB2013413 A GB 2013413A GB 7902353 A GB7902353 A GB 7902353A GB 7902353 A GB7902353 A GB 7902353A GB 2013413 A GB2013413 A GB 2013413A
Authority
GB
United Kingdom
Prior art keywords
slider
read
linear stepper
motor drive
write head
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
GB7902353A
Other versions
GB2013413B (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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB2013413A publication Critical patent/GB2013413A/en
Application granted granted Critical
Publication of GB2013413B publication Critical patent/GB2013413B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • 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
    • 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
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Moving Of Heads (AREA)
  • Linear Motors (AREA)

Abstract

The linear stepper-motor, which drives the head radially across the disc, comprises a stator (30) having a plurality of poles (38) having windings (40) energized in different phases; and a slider (28) having transverse teeth (34) which cooperate with teeth (36) on the poles so as to form a variable reluctance path through the slider. Longitudinally extending grooves in the slider cooperate with similar grooves in the stator to receive ball bearings for supporting the slider. <IMAGE>
GB7902353A 1978-01-26 1979-01-23 Linear stepper motor drive with a read/write head in a floppy disc system Expired GB2013413B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87261778A 1978-01-26 1978-01-26

Publications (2)

Publication Number Publication Date
GB2013413A true GB2013413A (en) 1979-08-08
GB2013413B GB2013413B (en) 1982-11-03

Family

ID=25359965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7902353A Expired GB2013413B (en) 1978-01-26 1979-01-23 Linear stepper motor drive with a read/write head in a floppy disc system

Country Status (9)

Country Link
JP (1) JPS54111316A (en)
AU (1) AU4366979A (en)
BE (1) BE873697A (en)
BR (1) BR7900448A (en)
DE (1) DE2901285A1 (en)
FR (1) FR2415861A1 (en)
GB (1) GB2013413B (en)
IT (1) IT1110399B (en)
NL (1) NL7900659A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522429A1 (en) * 1982-02-26 1983-09-02 Atasi Corp TRANSDUCER ACTUATOR FOR DISK MEMORY UNIT
FR2526603A1 (en) * 1982-05-10 1983-11-10 Kollmorgen Tech Corp LINEAR MOTOR WITH ROD AND GUIDE SLIDER
EP0152071A2 (en) * 1984-02-10 1985-08-21 Teac Corporation Data transfer apparatus with a disklike record medium, and a method of operation therefor
US4568992A (en) * 1984-04-25 1986-02-04 Seagate Technology Disc drive linear actuator
EP0180624A1 (en) * 1984-05-04 1986-05-14 Linear Stepper Motor Corporation Read/write head positioning apparatus
GB2174553A (en) * 1985-02-28 1986-11-05 Tokyo Juki Industrial Co Ltd Carriage drive system for a disc drive
USRE32285E (en) * 1982-02-26 1986-11-11 Atasi Corporation Linear actuator for a memory storage apparatus
US4743987A (en) * 1982-02-26 1988-05-10 Atasi Corporation Linear actuator for a memory storage apparatus
EP1075125A2 (en) * 1999-08-06 2001-02-07 Nokia Mobile Phones Ltd. Slide assembly for a communication unit
NL1013374C2 (en) * 1999-10-22 2001-04-24 Onstream B V Linear transmission with limited travel having lever pivoted between moving parts and with bearing cage pivoted at mid point
DE102007004780A1 (en) * 2007-01-31 2008-08-07 Schaeffler Kg mobile phone

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5730150A (en) * 1980-07-28 1982-02-18 Fujitsu Ltd Head positioning mechanism of magnetic disk device
JPS58146055A (en) * 1982-02-23 1983-08-31 Canon Electronics Inc Recording and reproducing disk device
JPS58173061U (en) * 1982-05-17 1983-11-18 ティアック株式会社 converter drive device
JPS5930685U (en) * 1982-08-20 1984-02-25 株式会社三協精機製作所 linear stepping motor
JPS6011677U (en) * 1983-06-30 1985-01-26 株式会社三協精機製作所 linear stepping motor
JPS6042086U (en) * 1983-08-30 1985-03-25 オムロン株式会社 linear pulse motor
JPS60102865A (en) * 1983-11-04 1985-06-07 Sumitomo Special Metals Co Ltd Linear pulse motor
JPS6093489U (en) * 1983-11-29 1985-06-26 住友特殊金属株式会社 Cylindrical linear pulse motor
JPS60207445A (en) * 1984-03-30 1985-10-19 Shinko Electric Co Ltd Cylindrical linear pulse motor
JPS61295857A (en) * 1985-06-22 1986-12-26 Shinko Electric Co Ltd Linear pulse motor
EP0240204A3 (en) * 1986-04-03 1988-10-19 Adept Technology, Inc. Variable reluctance stepper motor
DE102017122754A1 (en) * 2017-09-29 2019-04-04 MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. Device and vacuum chamber

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL290242A (en) * 1961-06-26
US3265911A (en) * 1964-01-27 1966-08-09 Superior Electric Co Linear electric motor
US3867676A (en) * 1973-09-20 1975-02-18 Ibm Variable reluctance linear stepper motor
US3950783A (en) * 1975-01-06 1976-04-13 International Business Machines Corporation Disk file access mechanism

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32285E (en) * 1982-02-26 1986-11-11 Atasi Corporation Linear actuator for a memory storage apparatus
GB2117163A (en) * 1982-02-26 1983-10-05 Atasi Corp Apparatus for moving a memory device transducer
FR2522429A1 (en) * 1982-02-26 1983-09-02 Atasi Corp TRANSDUCER ACTUATOR FOR DISK MEMORY UNIT
US4743987A (en) * 1982-02-26 1988-05-10 Atasi Corporation Linear actuator for a memory storage apparatus
FR2526603A1 (en) * 1982-05-10 1983-11-10 Kollmorgen Tech Corp LINEAR MOTOR WITH ROD AND GUIDE SLIDER
EP0152071A2 (en) * 1984-02-10 1985-08-21 Teac Corporation Data transfer apparatus with a disklike record medium, and a method of operation therefor
EP0152071A3 (en) * 1984-02-10 1988-03-09 Teac Corporation Data transfer apparatus with a disklike record medium, and a method of operation therefor
US4568992A (en) * 1984-04-25 1986-02-04 Seagate Technology Disc drive linear actuator
EP0180624A4 (en) * 1984-05-04 1986-09-04 Linear Stepper Motor Corp Read/write head positioning apparatus.
EP0180624A1 (en) * 1984-05-04 1986-05-14 Linear Stepper Motor Corporation Read/write head positioning apparatus
GB2174553A (en) * 1985-02-28 1986-11-05 Tokyo Juki Industrial Co Ltd Carriage drive system for a disc drive
EP1075125A2 (en) * 1999-08-06 2001-02-07 Nokia Mobile Phones Ltd. Slide assembly for a communication unit
EP1075125A3 (en) * 1999-08-06 2003-12-03 Nokia Corporation Slide assembly for a communication unit
US6782242B1 (en) 1999-08-06 2004-08-24 Nokia Mobile Phones Ltd. Slide assembly for a communication unit
NL1013374C2 (en) * 1999-10-22 2001-04-24 Onstream B V Linear transmission with limited travel having lever pivoted between moving parts and with bearing cage pivoted at mid point
DE102007004780A1 (en) * 2007-01-31 2008-08-07 Schaeffler Kg mobile phone

Also Published As

Publication number Publication date
BR7900448A (en) 1979-08-21
FR2415861A1 (en) 1979-08-24
JPS54111316A (en) 1979-08-31
DE2901285A1 (en) 1979-08-02
BE873697A (en) 1979-07-25
IT7919602A0 (en) 1979-01-25
NL7900659A (en) 1979-07-30
IT1110399B (en) 1985-12-23
AU4366979A (en) 1979-08-02
GB2013413B (en) 1982-11-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee