| 摘要 |
PROBLEM TO BE SOLVED: To seal adhesive with annular side plates and O-rings by installing ring magnets on a rotor portion and adding the annular side plates and O-rings. SOLUTION: A rotor structure is constituted of ring magnets (5) used as magnets, and the annular side plates (10) installed on the end faces (1a, 1b) of the rotor portion (1) with the first and second O-rings (12, 13) in between. Thus, the adhesive (3) between the ring magnets 5 and the rotor portion (1) is prevented from being brought into contact with the outside air. COPYRIGHT: (C)2003,JPO
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