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Patent Searching and Data


Title:
ROTOR AND PUMP
Document Type and Number:
Japanese Patent JP2009112158
Kind Code:
A
Abstract:

To provide a rotor having a magnet to be hardly damaged during manufacture, and ensuring an extended term of use.

The rotor 10 has: a shaft 14; a yoke 12 having a cylindrical shape, pressing the shaft 14 into its internal hole 12b and forming an engaging section 12d projected from its outer peripheral surface; and a magnet 13 having a cylindrical shape, the yoke 12 inserted into the internal hole 13a thereof, and one end in the axial direction, abutting on the engaging section 12. The rotor 10 further has an elastic member 15 fixed on at least one of the shaft 14 and the yoke 12 and urging the magnet 13 to the engaging section 12d side while abutting on the other end in the axial direction of the magnet 13.


Inventors:
HANAI KAZUO
Application Number:
JP2007284080A
Publication Date:
May 21, 2009
Filing Date:
October 31, 2007
Export Citation:
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Assignee:
AISAN IND
International Classes:
H02K1/27; F04D5/00
Attorney, Agent or Firm:
Kaiyu International Patent Office