PURPOSE: To reduce the energy loss at the time of transmitting the rotation of a micromotor and besides, improve the accuracy in transmission of rotation.
CONSTITUTION: When a micromotor is driven in the direction of, for example, an arrow A, a first magnetic gear 1 rotates in the direction of the arrow A. Hereupon, in the first magnetic gear 1 and the second magnetic gear 2, magnetic poles 3a and 3b different in phase from each other are arranged with a gap between, and besides since a magnetic field is made between these magnetic poles 3a and 3b, the second magnetic gear 2 rotates in the direction of an arrow B accompanying the rotation of the first magnetic gear 1, and the rotation of the micromotor is transmitted to the second magnetic gear 2 as it is in no contact.
IKUTA KOJI