JPS5859374U

JPS5859374U - stepping motor

Info

Publication number: JPS5859374U
Application number: JP15457081U
Authority: JP
Inventors: 恒明岡田; 栄次金子; 野中　正明
Original assignee: 東芝テック株式会社
Priority date: 1981-10-16
Filing date: 1981-10-16
Publication date: 1983-04-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のステップモータの一部を切欠いた正面図
、第２図は同上分解斜視図、第３図は本考案の一実施例
を示す縦断正面図、第４図は同上分解斜視図、第５図、
第６図はそれぞれ他の実施例を示すヨークとコイルボビ
ンの分解斜視図、第７図はさらに他の実施例を示すステ
ップモータの　　　　　□縦断正面図、第８図は同上分
解斜視図である。２１・・・フレーム、２３・・・係合溝、２４．　２５
゜２６．２７・・・ヨーク、２８・・・磁極片、３１．
４８・・・被係合部、３２，３３・・・コイルボビン、
３４゜３５・・・コイル、３６・・・位置合せ突部、３
７．４７゜５１．５４・・・係合部、４０・・・回転子
。Fig. 1 is a partially cutaway front view of a conventional step motor, Fig. 2 is an exploded perspective view of the same, Fig. 3 is a longitudinal sectional front view showing an embodiment of the present invention, and Fig. 4 is an exploded perspective view of the same. , Figure 5,
FIG. 6 is an exploded perspective view of a yoke and a coil bobbin showing other embodiments, FIG. 7 is a vertical sectional front view of a step motor showing still another embodiment, and FIG. 8 is an exploded perspective view of the same. 21... Frame, 23... Engagement groove, 24. 25
゜26.27... Yoke, 28... Magnetic pole piece, 31.
48... Engaged portion, 32, 33... Coil bobbin,
34° 35... Coil, 36... Positioning protrusion, 3
7.47°51.54...Engagement part, 40...Rotor.

Claims

[Scope of utility model registration request]

゛ A cylindrical frame with one end open, and a pair of annular yokes that are fitted and fixed to the frame and have a plurality of magnetic pole pieces on the inner periphery that protrude in opposite directions and are arranged alternately with each other. a coil held between them and wound around a coil bobbin, and a magnet that is fitted into the pair of yokes and coil bobbin facing each of the magnetic pole pieces, is rotatably supported by the frame, and is magnetized to have multiple poles. a rotor formed in the above-mentioned yokes, each of the yokes is provided with an engaged portion that engages with an engaging portion formed on the coil bobbin, and an engaged portion is formed on the outer periphery of the coil bobbin and is open at an open end edge of the frame. 1. A stepping motor comprising a protruding positioning projection that engages with an axial engagement groove formed on the circumferential surface of the stepping motor.