JPS5694939A - Rotor - Google Patents

Abstract

PURPOSE:To obtain easily a slender motor irrelevant to the diameter of the motor by a method wherein a steel plate is formed to be rectangular having convexes and concaves alternately in succession, and after the convex parts are inserted into slits being formed in a copper plate, the convex parts are crushed to hold the copper plate to hold the copper plates and curved to form a cylinder. CONSTITUTION:The steel plate 1 is bent and is processed to form the rectnagular shape having the convex parts 2 and the voncave parts 3 alternately in succession. At this time, it is favorable to make the bending parts between the convex parts 2 and the concave parts 3 to be skewed diagonally. On the other hand, the copper plate 4 having slits 5 to be fitted with the convex parts 2 is prepared, and the convex parts 2 of the steel plate 1 is inserted in the slits 5. After narrow tablet type steel plates 8 are inserted inside of the convex parts 2 and a steel plate 9 to constitute a yoke is made to come in contact with it, the top parts of the convex parts 2 are crushed to hold the conductor parts 6 of the copper plate 4. Finally it is wound around cylindrically making the steel plate 9 to be outside to obtain the rotor.