| 摘要 |
PROBLEM TO BE SOLVED: To enable assembling without fear for non-allowable inaccuracy by non-rotatably coupling a rotor of a flat motor with an end part projected backward from a supporting sleeve of a shaft via a boss and also coupling rotatably the boss with a rigid supporting plate or stator via a roll bearing. SOLUTION: A stator casing 10 of a flat motor 9 is coupled non-rotatably to a rear wall 6. A fitting plate 17 and a center hole of a cover plate 22 form a supporting sleeves 31, 32 of roll bearings 23, 24, inner races of the roll bearings 23, 24 are engaged with by pressure with a boss 25 of rotor 13 and a journal of the shaft 7 is inserted into the boss 25 in a good engaging condition. Thereby, a plurality of stators 10, 11, 12 are attached to rear wall 8 using a plurality of screws 18 and the rotor 13 can be secured using a center screw 18. Such working process is the same as that of the related art and therefore an assembling worker is required to learn the other working process. |
