JPS55139070A - Linear motor - Google Patents

Linear motor

Info

Publication number
JPS55139070A
JPS55139070A JP4623179A JP4623179A JPS55139070A JP S55139070 A JPS55139070 A JP S55139070A JP 4623179 A JP4623179 A JP 4623179A JP 4623179 A JP4623179 A JP 4623179A JP S55139070 A JPS55139070 A JP S55139070A
Authority
JP
Japan
Prior art keywords
magnets
yoke
coil
pair
moving body
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.)
Pending
Application number
JP4623179A
Other languages
Japanese (ja)
Inventor
Takashi Kikuchi
Tsuneo Ishii
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP4623179A priority Critical patent/JPS55139070A/en
Publication of JPS55139070A publication Critical patent/JPS55139070A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

PURPOSE:To improve the efficiency and to obtain a fixed driving force regardless of a movement of the magnet by providing a pair of movable magnets opposite to a coil wound around a yoke and by placing magnetic elements at both ends of the yoke. CONSTITUTION:The rollers 6, 7 installed on the moving body 4 run along a pair of guide rails 5a, 5b. A pair of magnets 8a, 8b is attached to the lower part of the moving body 4 on providing gaps between the magnets and the coil wound around the yoke 10, and the magnetic elements 12, 13 are placed at both ends of the yoke 10. When the coil 9 is energized, a force acts between the magnets and the coil, the magnets are horizontally moved and the tone arm 1 performs a tracking in a horizontal plane. Since two magnets are used, a greater driving force can be obtained even though less current flows in the coil, the efficiency can be improved. Moreover since the two attractions generated between the magnets 8a, 8b and the yoke 10 are the same in magnitude and reverse in direction, the two are canceled and the action is stabilized.
JP4623179A 1979-04-16 1979-04-16 Linear motor Pending JPS55139070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4623179A JPS55139070A (en) 1979-04-16 1979-04-16 Linear motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4623179A JPS55139070A (en) 1979-04-16 1979-04-16 Linear motor

Publications (1)

Publication Number Publication Date
JPS55139070A true JPS55139070A (en) 1980-10-30

Family

ID=12741333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4623179A Pending JPS55139070A (en) 1979-04-16 1979-04-16 Linear motor

Country Status (1)

Country Link
JP (1) JPS55139070A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0139372A1 (en) * 1983-08-10 1985-05-02 Atasi Corporation Actuator assembly for memory apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0139372A1 (en) * 1983-08-10 1985-05-02 Atasi Corporation Actuator assembly for memory apparatus

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