Title:
ROTARY PRIME MOVER
Document Type and Number:
Japanese Patent JPS5932336
Kind Code:
A
Abstract:
PURPOSE:To prevent the vibration of a rotary shaft in its axial direction by such an arrangement wherein a rotary shaft magnet is fixed, and another magnet opposing to the magnet is fixed to a motor case, and repulsive force between two magnets is set to a specified value. CONSTITUTION:A magnet 29 is fixed to a thrust receiving plate 14 and another magnet 16 opposing to the magnet 29 is fixed to a motor case 10 so that it repels each other. The repulsive force of the magnets 16, 29 is set so that it becomes specified thrust force and damping force depend on the intensity of vibration applied to the motor due to gap, etc. and specifications of the motor. By this arrangement, the vibration of a rotary shaft in its axial direction can be efficiently prevented by utilizing repulsive force of each magnet.
Inventors:
NAKAOKA MASAKI
KOMATSU TERUO
GOTOU SHINJI
KOMATSU TERUO
GOTOU SHINJI
Application Number:
JP14155182A
Publication Date:
February 21, 1984
Filing Date:
August 13, 1982
Export Citation:
Assignee:
CANON KK
International Classes:
H04N1/113; F16C17/02; F16C32/04; F16C39/06; G02B26/12; H02K7/09; (IPC1-7): F16C32/04; G02B27/17; H04N1/04
Attorney, Agent or Firm:
Arai Ichiro