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Title:
VIBRATION MOTOR
Document Type and Number:
Japanese Patent JP2003333796
Kind Code:
A
Abstract:

To provide a vibration motor producing a sufficient vibration amount and having a high degree of freedom of fixing space to an apparatus being fixed and exhibiting a sufficient strength against an impact.

Upper end part of a stator yoke 3 having a ring magnet 5 at the outer circumference is secured to the top plate of a tubular housing 2 secured onto a base 1, and lower end of a fixed shaft 4 having an upper end secured to the stator yoke is secured to the base. A support 7 comprising a lower tubular section 7a also serving as a commutator 11, a flange part 7b provided in the tubular section and a plurality of supporting protrusions 7c projecting upward from outer circumferential side part of the flange part is provided rotatably about the fixed shaft 4 by fitting the supporting protrusions of the support between adjacent pole teeth of a core 8 having a plurality of pole teeth on the inside of a ring body part and provided with an eccentric weight 13 at the outer circumferential side part thereby fixing the core.


Inventors:
ASABA KEISUKE
Application Number:
JP2002135458A
Publication Date:
November 21, 2003
Filing Date:
May 10, 2002
Export Citation:
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Assignee:
ASABA KK
International Classes:
F16C17/02; B06B1/04; B06B1/16; F16C33/10; F16F7/00; F16N9/02; H02K1/17; H02K1/22; H02K7/065; H02K7/08; H02K13/00; H02K23/00; H02K23/04; (IPC1-7): H02K7/065; B06B1/04; B06B1/16; F16C17/02; F16C33/10; F16F7/00; F16N9/02; H02K7/08
Attorney, Agent or Firm:
Maeda Kiyomi



 
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