JPS5563563A - Rotor for electronic clock - Google Patents

Rotor for electronic clock

Info

Publication number
JPS5563563A
JPS5563563A JP13259879A JP13259879A JPS5563563A JP S5563563 A JPS5563563 A JP S5563563A JP 13259879 A JP13259879 A JP 13259879A JP 13259879 A JP13259879 A JP 13259879A JP S5563563 A JPS5563563 A JP S5563563A
Authority
JP
Japan
Prior art keywords
rotor
magnet
permanent magnet
kinds
metals
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
JP13259879A
Other languages
Japanese (ja)
Inventor
Itaru Okonogi
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
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 filed Critical Seiko Epson Corp
Priority to JP13259879A priority Critical patent/JPS5563563A/en
Publication of JPS5563563A publication Critical patent/JPS5563563A/en
Pending legal-status Critical Current

Links

Landscapes

  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PURPOSE:To improve oxidation resistance and mechanical strength and to aim at stabilizing magnetic characteristic of a rotor and improving reliability by performing various kinds of plating after magnetizing intermetallic compounds of rare earth metals of RM5, R2M17 system. CONSTITUTION:A permanent magnet coated with a plating payer on its surface is driven into a rotor pinion through a busing 2 to constitute a rotor. The permanent magnet is consisting of RM5, R2M17 system intermetallic compound magnet of rare metals R constituted by one or more than two kinds of La, Y, Ce, Sm, Pr and the like and the metal M constituted by one or more than two kinds of Fe, Co, Ni, Cu and the like. The surface of the permanent magnet is plated with various kinds of metals i.e. Ni, Cu, Ni-Co, Al, Fe, Cr, Mo, Ag, Zn and the like. By doing so, oxidation of the magnet surface and deterioration of the magnet resin binders are prevented and also mechanical strength is increased.
JP13259879A 1979-10-15 1979-10-15 Rotor for electronic clock Pending JPS5563563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13259879A JPS5563563A (en) 1979-10-15 1979-10-15 Rotor for electronic clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13259879A JPS5563563A (en) 1979-10-15 1979-10-15 Rotor for electronic clock

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP73395A Division JPS5721842B2 (en) 1972-12-26 1972-12-26

Publications (1)

Publication Number Publication Date
JPS5563563A true JPS5563563A (en) 1980-05-13

Family

ID=15085075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13259879A Pending JPS5563563A (en) 1979-10-15 1979-10-15 Rotor for electronic clock

Country Status (1)

Country Link
JP (1) JPS5563563A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192469A2 (en) * 1985-02-19 1986-08-27 Dobson Park Industries Plc Electric motors and power tools

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192469A2 (en) * 1985-02-19 1986-08-27 Dobson Park Industries Plc Electric motors and power tools
EP0192469A3 (en) * 1985-02-19 1987-11-11 Dobson Park Industries Plc Electric motors and power tools

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