Title:
MAGNETIC BEARING
Document Type and Number:
Japanese Patent JP3697883
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a compact and inexpensive optical deflector having the reduced number of parts by reducing the number of components of a magnetic bearing and manufacturing cost.
SOLUTION: A supporting shaft material 22 formed by a permanent magnet material is fixed on a housing 20 and a non-magnetic member 24 is formed on the outer periphery of the material 20. A non-magnetic member 28 is formed on the inner periphery of a sleeve 26 formed by a permanent magnet material and the sleeve 26 and the material 22 are rotatably engaged with each other through a bearing gap K between both the non-magnetic members 28, 24. A magnetic bearing for supporting the axial direction of the sleeve 26 is formed by floating the sleeve 26 to be a rotary member on a fixed position by suction force generated between the sleeve 26 and the material 22 which are magnetized in mutually reversed directions of the axial direction.
Inventors:
Masahiro Takahashi
Application Number:
JP1922098A
Publication Date:
September 21, 2005
Filing Date:
January 30, 1998
Export Citation:
Assignee:
Fuji Xerox Co., Ltd
International Classes:
G02B26/12; F16C32/00; G02B26/10; (IPC1-7): G02B26/10; F16C32/00
Domestic Patent References:
| JP5106635A | ||||
| JP8014255A | ||||
| JP60244913A | ||||
| JP7279961A | ||||
| JP62085216A | ||||
| JP60055316A |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
Michio Iizuka
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
Michio Iizuka