JPS62176822U

JPS62176822U -

Info

Publication number: JPS62176822U
Application number: JP6448986U
Authority: JP
Priority date: 1986-04-28
Filing date: 1986-04-28
Publication date: 1987-11-10

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例を示す断面図、
第２図は本考案の第２の実施例を示す断面図、第
３図は製造過程にある第１の実施例の回転子部の
一部を示す部分斜視図、第４図は製造過程にある
第２の実施例の回転子部の一部を示す部分斜視図
、第５図および第６図は従来例を示す断面図であ
る。５０…凹部、５１…基台、５２…シヤフト、５
３…ヨーク部材、５４…固定子側コイル、５６…
回転子部、５６ａ…主部、５６ｂ…着磁部、５６
ｃ…ミラー、５７…ヨーク部。 FIG. 1 is a sectional view showing a first embodiment of the present invention;
Fig. 2 is a sectional view showing the second embodiment of the present invention, Fig. 3 is a partial perspective view showing a part of the rotor section of the first embodiment in the manufacturing process, and Fig. 4 is in the manufacturing process. A partial perspective view showing a part of the rotor section of a second embodiment, and FIGS. 5 and 6 are sectional views showing a conventional example. 50... recess, 51... base, 52... shaft, 5
3...Yoke member, 54...Stator side coil, 56...
Rotor part, 56a... Main part, 56b... Magnetized part, 56
c...Mirror, 57...Yoke part.

Claims

[Claims for Utility Model Registration] (1) In a polygonal mirror that is a component of a motor that rotates a rotor portion having a mirror by a motor, a rotor rotatably held on a base and having mirrors formed on its side surfaces. a donut-shaped recess formed in the axial direction of the rotor, a rotor magnetic pole formed of a plastic magnet member formed on the side wall of the recess via a rotor yoke; A polygonal mirror body comprising: stator side coils disposed to face each other in the recessed portion; and a coil yoke disposed at a position facing the rotor magnetic poles with the stator side coils in between. (2) The polygon mirror according to claim (1), wherein the coil yoke is cup-shaped and has a stator side yoke whose bottom part is fixed to the base.