JPH033199U

JPH033199U -

Info

Publication number: JPH033199U
Application number: JP6303789U
Authority: JP
Priority date: 1989-05-31
Filing date: 1989-05-31
Publication date: 1991-01-14

Description

[Brief explanation of drawings]

第１図は本考案の基本的構成を示す図、第２図
はステツピングモータのトルク−パルス周波数特
性を示すグラフ、第３図は画像読取り装置のスキ
ヤナ部とその駆動機構の要部を示した斜視図、第
４図はスキヤナ部の駆動機構の読取り面に対する
位置関係を示す平面図、第５図及び第６図はセン
サ遮蔽板とバネが取付けられているユニツト板の
斜視図、第７図はモータ制御回路のシステム回路
図、第８図はステツピングモータのスローアツプ
カーブを示すグラフ、第９図はスキヤナ部の駆動
制御動作を示すフローチヤート、第１０図はモー
タ制御回路のシステム回路図である。１……ステツピングモータ、２……走行体、３
……駆動機構、４……初期位置、５……バネ押圧
機構、６……位置検出手段、７……タイマー、８
……記憶手段、９……モータ制御手段。 Fig. 1 shows the basic configuration of the present invention, Fig. 2 is a graph showing the torque-pulse frequency characteristics of the stepping motor, and Fig. 3 shows the main parts of the scanner section of the image reading device and its drive mechanism. 4 is a plan view showing the positional relationship of the drive mechanism of the scanner unit with respect to the reading surface; FIGS. 5 and 6 are perspective views of the unit plate to which the sensor shielding plate and the spring are attached; and FIG. The figure is a system circuit diagram of the motor control circuit, Figure 8 is a graph showing the slow-up curve of the stepping motor, Figure 9 is a flowchart showing the drive control operation of the scanner section, and Figure 10 is the system circuit of the motor control circuit. It is a diagram. 1...Stepping motor, 2...Running body, 3
... Drive mechanism, 4 ... Initial position, 5 ... Spring pressing mechanism, 6 ... Position detection means, 7 ... Timer, 8
...Storage means, 9...Motor control means.

Claims

[Scope of Claim for Utility Model Registration] (1) In a driving device for a traveling body comprising a stepping motor and a drive mechanism that operates the traveling body along a predetermined trajectory by the driving force of the stepping motor, A spring pressing mechanism that supplies an initial driving force in the operating direction to a certain running body, a position detection means that detects that the running body is in the initial position, and a time count based on the detection signal of the position detection means. A timer to start, and an input pulse frequency for slow-up control of the stepping motor, with the self-starting frequency of the stepping motor corresponding to the load torque applied to the stepping motor when the running object is in the initial position as the initial input pulse frequency. A motor control device that slows up the stepping motor by referring to the input pulse frequency data of the storage device corresponding to the time of the timer when a detection signal from the position detection device is detected by a storage device that stores data in chronological order. means. A drive control device for a traveling body, comprising: (2) The drive control device for a traveling body according to claim (1), wherein the spring constant of the spring pressing mechanism can be changed, and the slow-up control data in the storage means can be changed in accordance with the change.