| 摘要 |
PROBLEM TO BE SOLVED: To improve the lineup property in stacked state of a rotor core without marring the assembly work efficiency of a rotor for a motor. SOLUTION: This is a manufacturing method of the rotor 10 of a motor for integrating the rotor core 20 which is constituted in columnar form, with plural sheets of disc-like electromagnetic steel plates 21 each having a through hole 21b at its axis 21a being stacked, and a shaft 30 which is arranged through the axis of the rotor core 20. Prior to integrating both by charging the space between the rotor core 20 and the shaft 30 with a fill by injection molding, plural sheets of stacked electromagnetic steel plates 21 for constituting the rotor core 20 are surrounded and fixed by a lineup mold (slide mold 73) with its bore specified arranged outside in its diametrical direction thereby lining them up in specified columnar form. COPYRIGHT: (C)2006,JPO&NCIPI
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