Title:
STEPPING MOTOR FOR GENERATING VIBRATION
Document Type and Number:
WIPO Patent Application WO/2007/058069
Kind Code:
A1
Abstract:
A stepping motor for generating vibration in which the stopping position can be
securely held by increasing a detent torque. The pole teeth of one stator yoke of
a set of one-phase stator yokes are formed in two types of pole teeth with different outermost
face areas in the radial direction and the pole teeth of the other are formed in
two types of pole teeth with different outermost face areas in the radial direction.
One type of pole teeth of these stator yokes are formed in the same shape and the
remaining two types of pole teeth which are not formed in the same shape are combined
with each other and disposed so that the detent torque can be increased.
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Inventors:
MATSUBARA MASAAKI
SATO KAZUAKI
UMEHARA MIKIO
TSUZAKI TOSHIAKI
SATO KAZUAKI
UMEHARA MIKIO
TSUZAKI TOSHIAKI
Application Number:
PCT/JP2006/321775
Publication Date:
May 24, 2007
Filing Date:
October 31, 2006
Export Citation:
Assignee:
MINEBEA MATSUSHITA MOTOR CORP (JP)
MATSUBARA MASAAKI
SATO KAZUAKI
UMEHARA MIKIO
TSUZAKI TOSHIAKI
MATSUBARA MASAAKI
SATO KAZUAKI
UMEHARA MIKIO
TSUZAKI TOSHIAKI
International Classes:
H02K37/12; H02K37/14; H02P8/32
Foreign References:
| JPS6043059A | 1985-03-07 | |||
| JPH0678513A | 1994-03-18 | |||
| JPH08205510A | 1996-08-09 | |||
| JPH06235777A | 1994-08-23 | |||
| JPH08294262A | 1996-11-05 |
Attorney, Agent or Firm:
NAITO, Teruo et al. (7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, JP)
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