JPS5780255A - Actuator - Google Patents

Actuator

Info

Publication number
JPS5780255A
JPS5780255A JP15532080A JP15532080A JPS5780255A JP S5780255 A JPS5780255 A JP S5780255A JP 15532080 A JP15532080 A JP 15532080A JP 15532080 A JP15532080 A JP 15532080A JP S5780255 A JPS5780255 A JP S5780255A
Authority
JP
Japan
Prior art keywords
fixed
tubular
constitution
yoke
shaft
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
JP15532080A
Other languages
Japanese (ja)
Inventor
Teruo Umehara
Norio Matsumoto
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.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP15532080A priority Critical patent/JPS5780255A/en
Priority to GB8132633A priority patent/GB2089132B/en
Priority to US06/316,642 priority patent/US4490815A/en
Priority to DE3144002A priority patent/DE3144002C2/en
Publication of JPS5780255A publication Critical patent/JPS5780255A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

PURPOSE:To form the actuator characterized by excellent efficiency and linearity by utilizing an entire electromagnetic coil for converting electric energy into reciprocating kinetic energy. CONSTITUTION:Two tubular electromagnetic oils 2 and 2' are provided on the internal peripheral surface of a tubular yoke 1 comprising soft magnetic body so that the same polarity is generated at the neighboring parts. A movable piece 5, wherein pole pieces 4 and 4' are fixed to both ends of a cylindrical or tubular permanent magent 3 which is magnetized in the axial direction, is arranged at the central part of the electromagnetic coils 2 and 2'. Shaft 6 and 6' are fixed to both ends of the movable piece 5. The shaft 6 and 6' are fixed and supported by disk shaped rubber members 7 and 7' which are fixed to both ends of the yoke 1. In this constitution, the energy can be efficiently converted, and the actuator characterized by the excellent operating characteristic and showing the linearlity can be provided.
JP15532080A 1980-11-05 1980-11-05 Actuator Pending JPS5780255A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP15532080A JPS5780255A (en) 1980-11-05 1980-11-05 Actuator
GB8132633A GB2089132B (en) 1980-11-05 1981-10-29 Electromagnetic actuator
US06/316,642 US4490815A (en) 1980-11-05 1981-10-30 Actuator for use in a pickup device for a video disk player
DE3144002A DE3144002C2 (en) 1980-11-05 1981-11-05 Actuator for optical disks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15532080A JPS5780255A (en) 1980-11-05 1980-11-05 Actuator

Publications (1)

Publication Number Publication Date
JPS5780255A true JPS5780255A (en) 1982-05-19

Family

ID=15603306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15532080A Pending JPS5780255A (en) 1980-11-05 1980-11-05 Actuator

Country Status (1)

Country Link
JP (1) JPS5780255A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4968225A (en) * 1988-12-27 1990-11-06 Nitto Kohki Co., Ltd. Magnet holder for electromagnetic diaphragm pump
US4968224A (en) * 1988-12-15 1990-11-06 Nitto Kohki Co., Ltd. Vibrator for diaphragm pump and magnet holder therefor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS458795Y1 (en) * 1969-07-11 1970-04-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS458795Y1 (en) * 1969-07-11 1970-04-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4968224A (en) * 1988-12-15 1990-11-06 Nitto Kohki Co., Ltd. Vibrator for diaphragm pump and magnet holder therefor
US4968225A (en) * 1988-12-27 1990-11-06 Nitto Kohki Co., Ltd. Magnet holder for electromagnetic diaphragm pump

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