JPS62127531U

JPS62127531U -

Info

Publication number: JPS62127531U
Application number: JP1471686U
Authority: JP
Priority date: 1986-02-04
Filing date: 1986-02-04
Publication date: 1987-08-13

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例を示すステツプモ
ータの平面図、第２図は第１図の断面図、第３図
は第１実施例のステツプモータ主要部品の斜視図
、第４図はステツプモータで駆動されるセクタ開
閉部の平面図、第５図は第４図の断面図、第６図
は駆動回路より出力信号の波形図と、セクタの作
動線図、第７図はステツプモータの動作図、第８
図は第２実施例を示すステツプモータの平面図で
ある。１，１０１……ロータ、５……ロータカナ、６
，１０６……ステータ、７，１０７……コイル、
１１……地板、１３……セクタ、１４……セクタ
駆動レバー、１５……セクタ駆動車、１７……ア
イドラー車。 Fig. 1 is a plan view of a step motor showing a first embodiment of the present invention, Fig. 2 is a sectional view of Fig. 1, Fig. 3 is a perspective view of main parts of the step motor of the first embodiment, and Fig. 4. 5 is a cross-sectional view of FIG. 4, FIG. 6 is a waveform diagram of the output signal from the drive circuit and an operating diagram of the sector, and FIG. Motor operation diagram, No. 8
The figure is a plan view of a step motor showing a second embodiment. 1,101...rota, 5...rota kana, 6
, 106... Stator, 7, 107... Coil,
11...Main plate, 13...Sector, 14...Sector drive lever, 15...Sector drive vehicle, 17...Idler vehicle.

Claims

[Scope of utility model registration request]

A shutter that has a plurality of sectors that form a lens aperture and a step motor that can be controlled to rotate in forward and reverse directions, and in which the step motor and the sectors are connected by a gear train or the like to control opening and closing of the sectors, wherein the step motor includes a rotor made of a rotatably supported permanent magnet magnetized in the radial direction, two stators formed in a substantially annular shape and having a pair of magnetic poles facing the outer periphery of the rotor, and each of the stators A switchgear comprising: a coil that excites a coil;