ELECTROMAGNET DEVICE

PURPOSE:To obtain a small-sized electromagnet device having large attraction force by installing superconductive members among magnetic poles of attraction sections for the core to which a coil is mounted. CONSTITUTION:Since superconductive members 4 are set up respectively between magnetic poles 1a and 1b and between magnetic poles 1b and 1c, magnetic flux among these magnetic poles is interrupted by the diamagnetic action of the superconductive members 4. Magnetic flux is formed only among the mag netic poles 1a-1c and an effector 3, and a core 1 displays large attraction force. That is, since the superconductive members 4 to not pass magnetic flux because of its diamagnetic action, magnetic flux does not leak between magnetic poles antipodal to each other, and magnetic flux is shaped only among the magnetic poles 1a-1c and the effector 3. Accordingly, a small-sized electromagnet device displaying high attraction force is acquired.