JPS6437359U

JPS6437359U -

Info

Publication number: JPS6437359U
Application number: JP13338887U
Authority: JP
Priority date: 1987-08-31
Filing date: 1987-08-31
Publication date: 1989-03-07
Anticipated expiration: 2002-08-31
Also published as: JPH0717245Y2

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による始動電動機
の要部断面図、第２図ａ，ｂはこの考案の要部を
示す断面図、第３図は従来の、樹脂からなるリヤ
ブラケツトを用いた始動電動機の要部断面図であ
る。図中、１は電機子、１ａは電機子回転軸、２は
磁石、３はヨーク、４はコンミテータ、５ａはプ
ラス側ブラシ、５ｂはマイナス側ブラシ、１３は
軸受、１４は通しボルト、１６ａはプラス側ブラ
シホルダ、１６ｂはマイナス側ブラシホルダ、１
７はリードワイヤ、１８は絶縁プレート、１９は
導電ベース、２０はスペーサ、２１はリヤブラケ
ツト、２２は金属製プレートである。尚、各図中
同一符号は同一又は相当部分を示す。 Figure 1 is a sectional view of the main parts of a starting motor according to an embodiment of this invention, Figures 2a and b are sectional views showing the main parts of this invention, and Figure 3 is a sectional view of a starter motor using a conventional rear bracket made of resin. FIG. In the figure, 1 is the armature, 1a is the armature rotating shaft, 2 is the magnet, 3 is the yoke, 4 is the commutator, 5a is the positive brush, 5b is the negative brush, 13 is the bearing, 14 is the through bolt, and 16a is the through bolt. Positive side brush holder, 16b is negative side brush holder, 1
7 is a lead wire, 18 is an insulating plate, 19 is a conductive base, 20 is a spacer, 21 is a rear bracket, and 22 is a metal plate. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of Claim for Utility Model Registration] (1) An armature rotating shaft equipped with an armature, a commutator attached to the rear side of this rotating shaft, a power supply brush that slides into contact with this commutator, and a brush holder that holds this brush. , a rear bracket made of resin and rotatably supporting the rotating shaft together with the front bracket; a yoke fitted between the rear bracket and the front bracket and equipped with a field; a yoke to which the brush holder is attached and the yoke; and a conductive base made of a conductive material sandwiched between the rear bracket and the rear bracket, a through bolt provided through the rear bracket and the front bracket to fit the yoke and the conductive base together, and a seat for the through bolt. a metal plate provided between the surface and the outer periphery of the rear bracket, and a metal plate formed in a portion of the rear bracket through which the through bolt passes through, and covering the entire circumference or a part of the through bolt and its yoke side end surface; A starting motor comprising a built-up part that comes into contact with the conductive base. (2) The starter motor according to claim (1) of the utility model registration, wherein the metal plate is integrally molded with the rear bracket.