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Title:
MAGNET UNIT
Document Type and Number:
Japanese Patent JP2010265806
Kind Code:
A
Abstract:

To provide a magnet unit reducing leakage flux and efficiently increasing magnetic force (magnetic flux density).

An annular type yoke 20 is formed of a plate-like material of a ferromagnetic body and recessed parts 20a are formed in an opposite side of the annular type yoke 20, and magnets 10, 10 are attracted thereto. Opposing magnetic pole faces of the magnets are different in magnetic polarity. A clearance is arranged between tip end magnetic pole faces of both magnets. It is preferable to structure the annular type yoke 20 to have the first yoke 21 and the second yoke 22 connected.

COPYRIGHT: (C)2011,JPO&INPIT


Inventors:
HONDA KUNIYASU
Application Number:
JP2009117438A
Publication Date:
November 25, 2010
Filing Date:
May 14, 2009
Export Citation:
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Assignee:
HONDA KUNIYASU
International Classes:
F02M27/04
Domestic Patent References:
JP3090275U2002-11-29
JPH11333286A1999-12-07
JPH10475A1998-01-06
JP2006200443A2006-08-03
Foreign References:
WO2006022013A12006-03-02
Attorney, Agent or Firm:
Kazuhiko Nakakura



 
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