| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a linear step motor having a structure improved so as to reduce the number of component, and to simplify the assembly process. <P>SOLUTION: The linear step motor comprises a motor housing having an inner peripheral surface to which a ring-shaped stator is fixed and having an aperture, a rotor provided rotatably in a space formed in the center of the stator, a cover member which closes the aperture and to which a bearing is coupled, a nut shaft arranged in the center of the rotor, with the tip being coupled on the outside of the cover member while passing through a shaft hole formed in the center of the inner ring of the bearing, and having an outer peripheral surface to with a magnet is coupled and an internally threaded part into which a lead screw member having an externally threaded part on the inner peripheral surface is screwed, and a fixing unit formed integrally with the nut shaft and fixing the nut shaft to a bearing coupled to the cover member. <P>COPYRIGHT: (C)2013,JPO&INPIT |
