JPS5828856U

JPS5828856U - Optical system drive device

Info

Publication number: JPS5828856U
Application number: JP12141981U
Authority: JP
Inventors: 渡辺　順児
Original assignee: 株式会社東芝
Priority date: 1981-08-18
Filing date: 1981-08-18
Publication date: 1983-02-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の採用に好的な一例を示す複写機の概略
的縦断面図、第２図乃至第４図は同機内に配置される移
動可能な光学系を示したもので、第２図および第３図は
それぞれその一例を示す側面図、第４図は第２図示の平
面図、第５図は１個のパルスモータにより光学系を移動
させる一例を示す駆動装置の斜視図、第６図は同じく他
の一例を示す駆動装置の斜視図、第７図は従来の駆動装
置における加速時の電流波形図、第８図は本考案の一実
施例を示す駆動装置における加速時の電流波形図、第９
図はパルスモータを用い、１回転における電圧波形図、
第１０図は本考案の一実施例を示すパルスモータを用い
て駆動する駆動装置の回路図、第１１図はパルスモータ
をコンピュータにより制御して駆動する駆動装置の回路
図、第１２図はパルスモータの加速エリア、定速エリア
、減速エリアにおける概略的電流波形図、第１３図は各
相間に印加される高電圧および低電圧のパルス間隔を示
す詳細説明図である。６・・・第１のミラー、７・・・第２のミラー、３０゜
４１．４４・・・パルスモータ、ＶＨ・・・高電圧、Ｖ
工・・・低電圧、Ａ、　Ｂ、　Ｃ，Ｄ・・・相。Ｈ４−刊ｂFIG. 1 is a schematic vertical sectional view of a copying machine showing an example suitable for adopting the present invention, and FIGS. 2 to 4 show a movable optical system disposed inside the machine. 2 and 3 are side views showing an example thereof, FIG. 4 is a plan view of the one shown in FIG. 2, and FIG. 5 is a perspective view of a drive device showing an example of moving the optical system by one pulse motor. FIG. 6 is a perspective view of a drive device showing another example, FIG. 7 is a current waveform diagram during acceleration in a conventional drive device, and FIG. 8 is a diagram of a current waveform during acceleration in a drive device according to an embodiment of the present invention. Current waveform diagram, No. 9
The figure shows a voltage waveform diagram for one rotation using a pulse motor.
Fig. 10 is a circuit diagram of a drive device that uses a pulse motor showing an embodiment of the present invention, Fig. 11 is a circuit diagram of a drive device that controls and drives a pulse motor by a computer, and Fig. 12 shows a pulse motor. A schematic current waveform diagram in the acceleration area, constant speed area, and deceleration area of the motor, and FIG. 13 are detailed explanatory diagrams showing pulse intervals of high voltage and low voltage applied between each phase. 6...First mirror, 7...Second mirror, 30°41.44...Pulse motor, VH...High voltage, V
Engineering...Low voltage, A, B, C, D...phase. H4-published b

Claims

[Scope of utility model registration request]

In an apparatus that scans a document by moving an optical system, the driving source of the optical system is provided with a pulse motor capable of applying high and low voltages, and the pulse motor applies a high voltage at the beginning of one pulse, and thereafter An optical system driving device characterized in that it is driven by applying a low voltage, and furthermore, the high voltage application time is controlled to 0 for every other phase.