Title:
ROTOR FOR STEP MOTOR AND SHAPING SAID ROTOR
Document Type and Number:
Japanese Patent JPS5510818
Kind Code:
A
Abstract:
PURPOSE:To facilitate the perforation of a shaft hole and improve the mass productivity, by embedding an easily workable substance in the shaft hole making part of a rotor. CONSTITUTION:The easily workable substance 2 different from the material of the rotor 1 of a step motor for an electronic wrist watch or the like is embedded in the shaft hole making central part of the rotor. The shaft hole 3 is perforated through the substance 2. A rotor shaft 4 is fitted in the hole 3. A rotor seat 6 is interposed between one side of the rotor 1 and a gear 5 formed on the rotor shaft 4. Another seat 7 is tightly fitted on the rotor shaft 4 and the other side of the rotor 1 so that the rotor 1 and the rotor shaft 4 are coupled with each other.
Inventors:
TOOYAMA NOBUO
Application Number:
JP8206278A
Publication Date:
January 25, 1980
Filing Date:
July 07, 1978
Export Citation:
Assignee:
RICOH KK
International Classes:
H02K15/02; H02K1/27; (IPC1-7): H02K15/02; H02K21/08