JPS6188477U

JPS6188477U -

Info

Publication number: JPS6188477U
Application number: JP17237284U
Authority: JP
Priority date: 1984-11-15
Filing date: 1984-11-15
Publication date: 1986-06-09

Description

[Brief explanation of the drawing]

第１図は本案ステツプモータの概略の縦断面図
、第２図は固定子磁極を除去した回転子、回転子
軸の他の実施例の展開斜視図、第３図は回転子の
みの又他の実施例の縦断面図、第４図は同じく回
転子のみの更に他の実施例の縦断面図、第５図は
従来の回転子のみの縦断面図で第６図は同じく従
来の他の例による回転子のみの縦断面図である。１１…固定子磁極、１２…回転子、１３…回転
子軸、１４，１５…肉逃げ部。 Fig. 1 is a schematic vertical sectional view of the proposed step motor, Fig. 2 is an exploded perspective view of a rotor with the stator magnetic poles removed, and another embodiment of the rotor shaft, and Fig. 3 is an exploded perspective view of the rotor only. FIG. 4 is a longitudinal sectional view of yet another embodiment including only the rotor, FIG. 5 is a longitudinal sectional view of the conventional rotor only, and FIG. 6 is a longitudinal sectional view of another conventional embodiment. FIG. 3 is a vertical cross-sectional view of only the rotor according to an example. DESCRIPTION OF SYMBOLS 11... Stator magnetic pole, 12... Rotor, 13... Rotor shaft, 14, 15... Relief part.

Claims

[Claims for Utility Model Registration] (1) A stepping motor comprising a stator having magnetic poles formed in a comb tooth shape, and a rotor consisting of a cylindrical permanent magnet whose outer circumferential surface is multipole magnetized,
The rotor is provided with a through hole located at the rotation center thereof, concentric with the outer peripheral surface of the rotor, and into which the rotor shaft is fitted and fixed, and provided at both ends in the axial direction between the through hole and the outer peripheral surface of the rotor. A rotor for a step motor, wherein a recess is formed in the rotor of the step motor, and a groove is provided in the inner surface of the through hole along the axial direction in which an adhesive accumulates. (2) A rotor for a step motor according to claim 1, wherein the outer peripheral surface of the rotor shaft is provided with a protrusion that fits into a groove on the inner surface of the through hole.