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Title:
MOTOR
Document Type and Number:
Japanese Patent JP2003111366
Kind Code:
A
Abstract:

To provide a drive gear by which its dimension in the direction of a rotor shaft can be further reduced.

A drive gear is provided with a rotor which is provided with a rotor which is in the shape of a hollow disk, and has at least one disk plane split in the circumferential direction and magnetized into different poles interchangeably, a coil whose inner peripheral surface is arranged at a position opposed to the outer peripheral surface of the rotor, and first magnetic pole portions which are opposed to one plane of the rotor, are made of a plurality of teeth extended outward in the radial direction of the rotor, and are excited by the coil, and second magnetic pole portions arranged on the opposite side of the first magnetic pole portions with the rotor between, and are excited by the coil.


Inventors:
AOSHIMA TSUTOMU
Application Number:
JP2001299524A
Publication Date:
April 11, 2003
Filing Date:
September 28, 2001
Export Citation:
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Assignee:
CANON KK
International Classes:
B06B1/04; B06B1/16; H02K7/065; H02K21/12; H02K37/14; (IPC1-7): H02K21/12; B06B1/04; B06B1/16; H02K7/065; H02K37/14
Attorney, Agent or Firm:
西山 恵三 (外1名)



 
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