JPS5875476U

JPS5875476U - Commutator device for small motors

Info

Publication number: JPS5875476U
Application number: JP17176281U
Authority: JP
Inventors: 坂本　文夫
Original assignee: ミツミ電機株式会社
Priority date: 1981-11-18
Filing date: 1981-11-18
Publication date: 1983-05-21

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 drawings]

第１図は回転軸１に固説された本考案に係る整流子装置
を示す外観斜視図で、第２図は第１図の整流子装置を正
面側から見た平面図、第３図は第１図の整流子装置を裏
面側より見た平面図である。第４図は第２図のＩＶ−ＩＶ’線に沿って断面した軸方
向断面図で、第５図は第１図の分解斜視図であり、整流
子片２は１個だけ示されている。第６図は第１図乃至第
５図に示した整流子装置の円筒３のみを示す平面図であ
る。第７図は第１図乃至第５図に示した整流子装置の整
流子片２のみを示す図で、第７図Ａは端子部２２を折曲
する前の状態を示す平面図で、第７図Ｂ、　Ｃ，Ｄは端
子部２２を折曲した後の状態を示しており、第７図Ｂは
平面図、第７図Ｃは正面図、第７図りは側面図である。２１・・・整流子部、２３・・・切込み、３３・・・端
子嵌合溝、３４・・・円弧状溝、３４Ａ・・・周方向端
壁。Fig. 1 is an external perspective view showing a commutator device according to the present invention fixed to a rotating shaft 1, Fig. 2 is a plan view of the commutator device of Fig. 1 seen from the front side, and Fig. 3 is a FIG. 2 is a plan view of the commutator device of FIG. 1 viewed from the back side. 4 is an axial sectional view taken along the line IV-IV' in FIG. 2, and FIG. 5 is an exploded perspective view of FIG. 1, in which only one commutator piece 2 is shown. . FIG. 6 is a plan view showing only the cylinder 3 of the commutator device shown in FIGS. 1 to 5. FIG. 7 is a diagram showing only the commutator piece 2 of the commutator device shown in FIGS. 1 to 5, and FIG. 7A is a plan view showing the state before the terminal portion 22 is bent. 7B, C, and D show the state after the terminal portion 22 is bent. FIG. 7B is a plan view, FIG. 7C is a front view, and FIG. 7 is a side view. 21...Commutator portion, 23...Notch, 33...Terminal fitting groove, 34...Circular groove, 34A...Circumferential end wall.

Claims

[Scope of utility model registration request]

(1) In a commutator device for a small motor in which a plurality of commutator pieces each having an arcuately curved commutator portion and a terminal portion erected from the commutator portion are arranged on an insulating cylinder, the above-mentioned Each commutator piece has two cuts in the longitudinal axis direction to form a terminal portion with support protrusions formed on both sides, and the terminal portion is cut and raised to form a substantially T-shaped commutator piece, Further, a terminal fitting groove into which the terminal portion of the commutator piece is fitted is formed in the cylinder, and the terminal fitting groove is connected to the corresponding terminal fitting groove,
A commutator device for a small motor, characterized in that a plurality of arcuate grooves divided for each commutator segment are formed in a ring shape.

(2) A commutator device for a small motor according to claim (1), wherein the abutment between both circumferential end walls of the arcuate groove and both circumferential ends of the commutator piece , the circumferential rotational displacement of the commutator piece is restricted.