| 摘要 |
PURPOSE:To control adhesion of a wheel by controlling an electromagnetic attraction force on the running surface of an electromagnet comprising wheels supported by an axle around which a coil is wound. CONSTITUTION:A wheel 1 formed of a ferromagnetic substance and a coil 4 is wound around an axle 2 supporting the wheels, and an electromagnet where the wheels produce two poles on the whole is formed. Through control of an electromagnetic force through control of an exciting current from a chopper amplifier 10, the electromagnetic attraction force of a running rail 3 or a deck 3', formed of a ferromagnetic substance, to a running surface is regulated to increase adhesion. |
