JPH02122245U

JPH02122245U -

Info

Publication number: JPH02122245U
Application number: JP3196589U
Authority: JP
Priority date: 1989-03-20
Filing date: 1989-03-20
Publication date: 1990-10-05

Description

[Brief explanation of drawings]

第１図は固定ベースの平面図、第２図は同ベー
スの断面図、第３図はアクチユエータの断面図、
第４図は同アクチユエータの平面図、第５図は同
アクチユエータの底面図、第６図は下ケースの内
部を示す平面図、第７図ａ，ｂはロータの平面図
および底面図、第８図ａ，ｂは刷子と可動ベース
の回転方向を示す図、第９図はアクチユエータの
電気回路図、第１０図は従来の刷子の取付け構造
を示す固定ベースの平面図、第１１図ａ，ｂは刷
子と可動ベースの回転方向を示す図である。１……可動ベース、２，２Ａ，２Ｂ，２Ｃ……
導電箔、３……溝、４……固定ベース、５，５Ａ
，５Ｂ，５Ｃ……刷子、１０……アクチユエータ
、２５……ロータ、２８Ａ，２８Ｂ……励磁コイ
ル。 Figure 1 is a plan view of the fixed base, Figure 2 is a sectional view of the base, Figure 3 is a sectional view of the actuator,
Fig. 4 is a plan view of the actuator, Fig. 5 is a bottom view of the actuator, Fig. 6 is a plan view showing the inside of the lower case, Figs. Figures a and b are diagrams showing the rotation direction of the brush and movable base, Figure 9 is an electric circuit diagram of the actuator, Figure 10 is a plan view of the fixed base showing the conventional brush mounting structure, and Figures 11 a and b. FIG. 2 is a diagram showing the rotation direction of the brush and the movable base. 1...Movable base, 2, 2A, 2B, 2C...
Conductive foil, 3...Groove, 4...Fixed base, 5,5A
, 5B, 5C... Brush, 10... Actuator, 25... Rotor, 28A, 28B... Excitation coil.

Claims

[Scope of utility model registration request]

a rotor that includes an excitation coil and a movable base and is rotated by a certain angle in forward and reverse directions by switching the direction of current applied to the excitation coil;
a fixed base disposed on the stator side opposite to the movable base; a plurality of conductive foils disposed on the movable base or the fixed base; and a tip portion slidingly contacted with each of these conductive foils. a brush consisting of a plurality of elastic pieces disposed on the fixed base or the movable base, and the contact state of the brush with the conductive foil changes from ON to OFF when the rotor rotates in one direction. A first brush is disposed on the fixed base or the movable base so that its distal end is located in the rotational direction of the rotor from the base end side, while the first brush is in contact with the conductive foil in the other direction of the rotor. From ON to O during rotation
A second brush, which replaces the FF, is arranged on the fixed base or the movable base so that the base end thereof is located in the rotor rotational direction from the distal end thereof, and is inclined in the opposite direction to the first brush. Characteristic actuator.