Title:
STEP MOTOR
Document Type and Number:
Japanese Patent JPS555046
Kind Code:
A
Abstract:
PURPOSE:To prevent displacement of a rotor core of a step motor by forming a rotor by a first rotor core of cup shape and a second rotor core placed on the first rotor core and fixing the second rotor core to the first rotor core. CONSTITUTION:A first rotor core 15 of cup shape is provided on a shaft 10, and a cutout 16 is, for example, formed on the outer periphery of the rotor core 15. A second rotor core 17 having a number of teeth 18 is arranged on the outer periphery of the first rotor core 15, and engaged with the cutout 16 of the first rotor core via a lug 19 formed on the inner periphery of the second rotor core 17. The displacement of the rotor core is exactly eliminated by urging both the ends of the core 17 by a leaf spring 20 pressed to the core 15. Thus, it can eliminate simply the displacement of the rotor core and the separation of the core exactly.
Inventors:
TSUJIHARA TOSHIO
Application Number:
JP7686578A
Publication Date:
January 14, 1980
Filing Date:
June 23, 1978
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H02K37/04; H02K37/00; (IPC1-7): H02K37/00
Domestic Patent References:
| JPS4735708A |