| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnet rotor capable of facilitating machining and assembly with a simple constitution by securely fixing the magnet with a driving arm without the magnet and the driving arm being easily separated from each other during use. SOLUTION: In constituting the device out of the magnet rotor having a rotating shaft and a stator having an exciting coil applying a rotational force to the rotor, a hollow sleeve-shaped permanent magnet, the rotating shaft disposed at the hollow portion of the permanent magnet and the driving arm rotating around the rotating shaft integrally with the permanent magnet are provided at the magnet rotor. Besides, the rotating shaft or the permanent magnet is rotatably supported at a pair of upper and lower rotor support members. The rotor support member is composed of a coil frame of the electromagnetic drive device and the like, a first fitting portion constituted of protrusions or recessed grooves at an upper edge surface in the rotational-axis direction is formed at the permanent magnet, and a second fitting portion constituted of protrusions or recessed grooves adapted to the first fitting portion is formed at the driving arm. COPYRIGHT: (C)2007,JPO&INPIT
|
