JPS56103957A - Rotor of step motor for wrist watch - Google Patents

Rotor of step motor for wrist watch

Info

Publication number
JPS56103957A
JPS56103957A JP14315580A JP14315580A JPS56103957A JP S56103957 A JPS56103957 A JP S56103957A JP 14315580 A JP14315580 A JP 14315580A JP 14315580 A JP14315580 A JP 14315580A JP S56103957 A JPS56103957 A JP S56103957A
Authority
JP
Japan
Prior art keywords
rotor
rotor magnet
step motor
wrist watch
bush
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
JP14315580A
Other languages
Japanese (ja)
Inventor
Itaru Okonogi
Takeshi Kobayashi
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.)
Seiko Epson Corp
Suwa Seikosha KK
Takagi Industrial Co Ltd
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Takagi Industrial Co 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 Seiko Epson Corp, Suwa Seikosha KK, Takagi Industrial Co Ltd filed Critical Seiko Epson Corp
Priority to JP14315580A priority Critical patent/JPS56103957A/en
Publication of JPS56103957A publication Critical patent/JPS56103957A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H02K1/2733—Annular magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PURPOSE:To prevent surface oxidation of a rotor magnet by a method wherein the rotor magnet is covered with a film of a metal plated layer. CONSTITUTION:The rotor magnet 6 is covered with the film 7 of a metal plated layer and a bush 8 is pushed inside the hole. Whereby the surface of the rotor magnet is prevented from being oxidized and the rotor magnet and the bush are easily fixed.
JP14315580A 1980-10-14 1980-10-14 Rotor of step motor for wrist watch Pending JPS56103957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14315580A JPS56103957A (en) 1980-10-14 1980-10-14 Rotor of step motor for wrist watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14315580A JPS56103957A (en) 1980-10-14 1980-10-14 Rotor of step motor for wrist watch

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP49136771A Division JPS5173296A (en) 1974-11-28 1974-11-28

Publications (1)

Publication Number Publication Date
JPS56103957A true JPS56103957A (en) 1981-08-19

Family

ID=15332194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14315580A Pending JPS56103957A (en) 1980-10-14 1980-10-14 Rotor of step motor for wrist watch

Country Status (1)

Country Link
JP (1) JPS56103957A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6229763U (en) * 1985-08-05 1987-02-23
US20110089781A1 (en) * 2009-10-20 2011-04-21 Nidec Sankyo Corporation Rotor for motor and motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6229763U (en) * 1985-08-05 1987-02-23
US20110089781A1 (en) * 2009-10-20 2011-04-21 Nidec Sankyo Corporation Rotor for motor and motor
US8450897B2 (en) * 2009-10-20 2013-05-28 Nidec Sankyo Corporation Rotor for motor and motor

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