JPS5499909A - Structure of motor for timepiece - Google Patents

Structure of motor for timepiece

Info

Publication number
JPS5499909A
JPS5499909A JP641678A JP641678A JPS5499909A JP S5499909 A JPS5499909 A JP S5499909A JP 641678 A JP641678 A JP 641678A JP 641678 A JP641678 A JP 641678A JP S5499909 A JPS5499909 A JP S5499909A
Authority
JP
Japan
Prior art keywords
permanent magnet
magnet
rotary shaft
motor
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
JP641678A
Other languages
Japanese (ja)
Inventor
Hidetoshi Yoshitaki
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 JP641678A priority Critical patent/JPS5499909A/en
Publication of JPS5499909A publication Critical patent/JPS5499909A/en
Pending legal-status Critical Current

Links

Landscapes

  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PURPOSE: To provide a miniature motor of high performance, by setting a gap between a rotary shaft and a permanent magnet and rotating the shaft and the magnet together by the attractive force acting between them.
CONSTITUTION: A small gap is set between the permanent magnet 5 and the rotary shaft 4 which constitutes a rotor. The rotary shaft is rotated together with the permanent magnet by the attractive force acting between them. A magnet seat 6 may be mounted on the rotary shaft 4 to support the permanent magnet 5 and fixed to the permanent magnet by a bonding agent so that the magnet and the shaft can be rotated surely. Since a magnet bushing etc. are not interposed between the rotary shaft 4 and the permanent magnet 5, the efficiency of the motor is raised and the motor can be miniaturized.
COPYRIGHT: (C)1979,JPO&Japio
JP641678A 1978-01-24 1978-01-24 Structure of motor for timepiece Pending JPS5499909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP641678A JPS5499909A (en) 1978-01-24 1978-01-24 Structure of motor for timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP641678A JPS5499909A (en) 1978-01-24 1978-01-24 Structure of motor for timepiece

Publications (1)

Publication Number Publication Date
JPS5499909A true JPS5499909A (en) 1979-08-07

Family

ID=11637757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP641678A Pending JPS5499909A (en) 1978-01-24 1978-01-24 Structure of motor for timepiece

Country Status (1)

Country Link
JP (1) JPS5499909A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59103545U (en) * 1982-12-27 1984-07-12 東北リコ−株式会社 rotor for motor
EP0243187A2 (en) * 1986-04-25 1987-10-28 Isuzu Motors Limited Electric generator for use in a turbocharger and turbocharger including said generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59103545U (en) * 1982-12-27 1984-07-12 東北リコ−株式会社 rotor for motor
EP0243187A2 (en) * 1986-04-25 1987-10-28 Isuzu Motors Limited Electric generator for use in a turbocharger and turbocharger including said generator

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