| 摘要 |
PURPOSE:To rotate an inner magnetic rotor in an outer magnetic body in a fixed direction by giving a driving force to the rotor utilizing a attracting or repulsing force with magnetic poles opposed to each other between inner and outer magnets arranged in a ring. CONSTITUTION:On the inner surface of a case 1, a magnetic rotary apparatus is built with several magnets 2 magnetized in N and S poles at both ends respectively, an outer magnetic body A arranged in a ring with an insulator 3 inserted between the magnets 2, an inner magnetic body B in which bar-shaped square magnets 4 are arranged rotatively on a support shaft 7 provided on the circumference of a rotary plate supported with a rotor 5. When it rotates, switching cams 8 of the magnet 4 sequentially contact a cam operator section 9 projected on the inner surface of the outer magnetic body A so that the polarity of the magnet 4 is changed automatically from N to S. Thus, the repulsing or attracting force works between the inner and the outer magnetic bodies A and B so as to drive the inner magnetic body in a fixed direction. |
