JPS6377457U

JPS6377457U -

Info

Publication number: JPS6377457U
Application number: JP13744587U
Authority: JP
Priority date: 1986-09-08
Filing date: 1987-09-08
Publication date: 1988-05-23
Also published as: GB8621565D0

Description

[Brief explanation of the drawing]

第１図は本考案を使用したＰＭＤＣモータの第
一の態様の、一部除去した斜視図であり、第２図
は第１図のライン―に沿つて取つた断面図で
あり、第３図は第２図のライン―に沿つて取
つた断面図であり、第４図は本考案を使用したＰ
ＭＤＣモータの第二の態様の、第２図と同様な図
であり、および第５図は第４図のライン―に
沿つて取つた断面図である。（主な参照番号）、９……モータケーシング、
１０，４７……端部キヤツプ、１１，４１……ブ
ラシアセンブリ、１２……ブラシ、１３……トー
シヨンスプリング、１４……整流子、１５……モ
ータ軸、１６……軸受、１７，４３……ブラシケ
ージ、１８，４９……スロツト、１９，４２……
金属製基板、２０，４４……上部壁、２１，２２
，４５，４６……側壁、２５，４８……タブ、２
６，５０……リーフスプリング、２７……第一端
部部分、２８……リベツト、２９……中央部分、
３０……第二端部部分、３１……接合、５１，５
２……脚、５３……中空リベツト、５４……ポス
ト、５５……スリーブ、５６……ワツシヤー。 1 is a partially cut away perspective view of a first embodiment of a PMDC motor using the present invention, FIG. 2 is a sectional view taken along the line of FIG. 1, and FIG. is a cross-sectional view taken along the line in Fig. 2, and Fig. 4 is a cross-sectional view taken along the line of Fig. 2.
5 is a view similar to FIG. 2 and a cross-sectional view taken along the line of FIG. 4 of a second embodiment of the MDC motor; FIG. (Main reference number), 9...Motor casing,
10, 47... End cap, 11, 41... Brush assembly, 12... Brush, 13... Torsion spring, 14... Commutator, 15... Motor shaft, 16... Bearing, 17, 43... ...Brush cage, 18,49...Slot, 19,42...
Metal substrate, 20, 44...Top wall, 21, 22
, 45, 46... side wall, 25, 48... tab, 2
6, 50... Leaf spring, 27... First end portion, 28... Rivet, 29... Center portion,
30...Second end portion, 31...Joining, 51,5
2...Legs, 53...Hollow rivets, 54...Posts, 55...Sleeves, 56...Washers.

Claims

[Claims for Utility Model Registration] (1) A brush assembly having a brush assembly electrically connected to terminals of an electric motor, the brush assembly being disposed within an annular cage having a generally rectangular cross section with at least one end open. a slidably mounted brush; first means for pressing the brush against a commutator of the motor through an open end of the cage; and pressing the brush against a wall of the cage to prevent brush chatter. a second means for reducing the voltage, the second means including a resilient and electrically conductive leaf spring, the leaf spring being in electrical connection with the terminal and having one end thereof said electric motor, said electric motor being adapted to be fixed at said brush at said other end and adapted to be biased against said opposite wall of said cage. (2) The electric motor according to claim (1), wherein the leaf spring presses the brush in the axial direction of the commutator. (3) The electric motor according to claim 1 or 2, wherein the leaf spring is mounted on a wall of the cage. (4) The electric motor according to claim (3), wherein the leaf spring is fixed to the wall of the cage with rivets. (5) the leaf spring includes a first end portion attached to the cage wall and a second end portion extending from the brush and facing upwardly; Utility model registration claim No. 1, characterized in that the brush is pressed at the joint with the facing end portion.
The electric motor according to any one of (1) to (4). (6) The electric motor according to claim (1), wherein the leaf spring is attached to the motor terminal. (7) The leaf spring has a first leg for attaching it to the terminal, and a second leg that is obliquely inclined with respect to the first leg and extends into the cage. , the second leg supports the brush and presses it against the opposite wall of the cage, as claimed in claim 6
) The electric motor described in paragraph ). (8) The electric motor according to claim 6 or 7, wherein the terminal is integrated with a metal substrate of the cage. (9) The electric motor according to claim (6), wherein the cage is made of a non-conductive material.