JPS6082968U

JPS6082968U - Brush for small motor

Info

Publication number: JPS6082968U
Application number: JP17615683U
Authority: JP
Inventors: 藤崎　清則
Original assignee: 秀和インターナシヨナル株式会社
Priority date: 1983-11-14
Filing date: 1983-11-14
Publication date: 1985-06-08

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図及び第２図は従来例に係り、第１図は小型モータ
の初期運転時におけるカーボンブラシの状態を示す部分
縦断面正面図、第２図は小型モータの所定時間運転後に
おけるカーボンブラシの状態を示す部分縦断面正面図、
第３図及び第４図は本考案の実施例に係り、第３図は第
１実施例に係る小型モータ用ブラシと整流子との接触状
態を示す部分縦断面側面図、第４区は第２実施例に係る
小型モータ用ブラシの要部斜視区である。２は整流子、２ａは整流子片、２ｃは絶縁部、４はカー
ボンブラシ、５は補助ブラシ、６はブラシホルダ、Ｂは
小型モータ用ブラシ、Ｓはストッパである。Fig. 1 and Fig. 2 relate to a conventional example, Fig. 1 is a partial vertical cross-sectional front view showing the state of the carbon brush at the time of initial operation of the small motor, and Fig. 2 is a carbon brush after the small motor has been operated for a predetermined time. A partial vertical cross-sectional front view showing the state of the
3 and 4 relate to an embodiment of the present invention, FIG. 3 is a partial longitudinal cross-sectional side view showing the contact state between the brush for a small motor and a commutator according to the first embodiment, and the fourth section is a side view showing the state of contact between the small motor brush and the commutator according to the first embodiment. It is a perspective view of a main part of a brush for a small motor according to a second embodiment. 2 is a commutator, 2a is a commutator piece, 2c is an insulating part, 4 is a carbon brush, 5 is an auxiliary brush, 6 is a brush holder, B is a brush for a small motor, and S is a stopper.

Claims

[Claims for Utility Model Registration] 1. A carbon brush, and an auxiliary brush for preventing sparks that contacts a commutator piece adjacent to the insulating part when the carbon brush is in contact with the insulating part of the commutator. A brush for small motors characterized by the following. 2. The small motor according to claim 1, wherein the auxiliary brush is formed by branching a brush holder that holds the carbon brush and extending integrally with the brush holder. brush. '3 The small-sized brush according to claim 1, wherein the auxiliary brush is a linear member with a small diameter whose base end is fixed to a brush holder that holds the carbon brush. Brush for motor. 4. The brush for a small motor according to claim 3, wherein the auxiliary brush is formed to have a thickness such that it wears out when the carbon brush wears to an appropriate degree. . 5. The utility model registration claim is characterized in that the auxiliary brush is provided with a stopper that stops the auxiliary brush from coming into contact with the commutator after the carbon brush has been worn to an appropriate degree. A brush for small motors as described in Range 1.