JPH02139469U - - Google Patents
Info
- Publication number
- JPH02139469U JPH02139469U JP5030489U JP5030489U JPH02139469U JP H02139469 U JPH02139469 U JP H02139469U JP 5030489 U JP5030489 U JP 5030489U JP 5030489 U JP5030489 U JP 5030489U JP H02139469 U JPH02139469 U JP H02139469U
- Authority
- JP
- Japan
- Prior art keywords
- holding frame
- brush
- commutator
- coil spring
- electric motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Description
第１図は本考案の一実施例に係る電動機のブラ
シ装置を示す断面図、第２図は従来の電動機のブ
ラシ装置を示す断面図である。
１…整流子、２…保持枠、２ａ…上側閉寒壁、
１０…ブラシ装置、１１…ブラシ、１２…コイル
スプリング。なお、各図中同一符号は同一部分又
は相当する部分を示す。
FIG. 1 is a sectional view showing a brush device for an electric motor according to an embodiment of the present invention, and FIG. 2 is a sectional view showing a conventional brush device for an electric motor. 1... Commutator, 2... Holding frame, 2a... Upper cold wall,
10...Brush device, 11...Brush, 12...Coil spring. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
該保持枠内に配置され、下端が前記保持枠の下側
開口部を通つて前記整流子の周面に接触するブラ
シと、前記保持枠内において上側閉寒壁と前記ブ
ラシの上端との間に配置され前記ブラシを前記整
流子に押圧するコイルスプリングであつてコイル
巻径が長手方向に亘つて漸次変化したコイルスプ
リングとを含む電動機のブラシ装置。 a holding frame arranged around the commutator of the electric motor;
a brush disposed within the holding frame, the lower end of which contacts the circumferential surface of the commutator through a lower opening of the holding frame, and a space between an upper closing wall and the upper end of the brush within the holding frame; 1. A brush device for an electric motor, the coil spring having a coil winding diameter that gradually changes in a longitudinal direction, the coil spring being disposed in a coil spring for pressing the brush against the commutator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5030489U JPH02139469U (en) | 1989-04-27 | 1989-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5030489U JPH02139469U (en) | 1989-04-27 | 1989-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02139469U true JPH02139469U (en) | 1990-11-21 |
Family
ID=31568735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5030489U Pending JPH02139469U (en) | 1989-04-27 | 1989-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02139469U (en) |
-
1989
- 1989-04-27 JP JP5030489U patent/JPH02139469U/ja active Pending