JPS5988803A - Checking system of dynamic characteristic of moving coil type magnet - Google Patents
Checking system of dynamic characteristic of moving coil type magnetInfo
- Publication number
- JPS5988803A JPS5988803A JP19928382A JP19928382A JPS5988803A JP S5988803 A JPS5988803 A JP S5988803A JP 19928382 A JP19928382 A JP 19928382A JP 19928382 A JP19928382 A JP 19928382A JP S5988803 A JPS5988803 A JP S5988803A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- magnet
- time
- moving coil
- voltage
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J9/00—Hammer-impression mechanisms
- B41J9/26—Means for operating hammers to effect impression
- B41J9/38—Electromagnetic means
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Impact Printers (AREA)
- Electromagnets (AREA)
Abstract
Description
【発明の詳細な説明】
（ａ） 発明の技術分野
本発明はインパクト型プリンタ装置等に用いられる可動
コイル型マグネットに係り、特にマグネットの動作時間
が簡単にチェックできるようにした可動コイル型マグネ
ットの動特性チェック方式辺間する。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a moving coil type magnet used in impact type printers, etc., and in particular to a moving coil type magnet that allows the operating time of the magnet to be easily checked. Dynamic characteristics check method is used.
インパクト型プリンタ装置等に用いられる可動コイル型
マグネットは、例えば第１図（イ）０コ）に示すような
構造である。図において、駆動素子１はコイルベース２
とそれに固定されたコイル３から成り、ハンマチップ（
ワイヤ）４が固定されている。A moving coil type magnet used in an impact type printer or the like has a structure as shown in FIG. 1 (a), for example. In the figure, the drive element 1 is the coil base 2
It consists of a coil 3 fixed to it, and a hammer tip (
wire) 4 is fixed.
そして駆動素子１はベース５−ヒに固定された２枚の磁
石６，７で作られたキャップ８の中に、復旧バネ部９が
ベース５上のスリット部１０で樹脂により固定され、位
置決めされている。またワイヤ４の先端はワイヤガイド
１１でガイドされている。Then, the drive element 1 is positioned in a cap 8 made of two magnets 6 and 7 fixed to the base 5-H, and the recovery spring part 9 is fixed with resin at the slit part 10 on the base 5. ing. Further, the tip of the wire 4 is guided by a wire guide 11.
コイル端子１２を介してコイル３に電流を流すとコイル
３に電磁力が発生し、一体きなっているワイヤ４を図の
左側へ押し出す。電流を切ればワイヤ４は復旧バネ部９
の作用により元の位置に戻される。なお１３はバックス
トップを示す。When a current is passed through the coil 3 through the coil terminal 12, an electromagnetic force is generated in the coil 3, and the wire 4, which is formed in one piece, is pushed out to the left side in the figure. If the current is cut off, the wire 4 will return to the recovery spring section 9.
It is returned to its original position by the action of Note that 13 indicates a backstop.
マグネットは上記のように動作するが、そのときワイヤ
４の移動により用紙、インクリボン（図示しない）を打
撃し復旧するときの動特性、即ちワイヤ４の衝撃力と動
作時間（衝突時間と往復時イヤ４の＠撃力はピエゾ等の
力検出素子にワイヤ４を衝突させて観測することにより
行うことができるが、一方ワイヤ４の動作時間について
は例えば、（第１図（イ）参照）マグネットコイルベー
ス２の一端Ａ部を光照射し、カメラ（図示しない）の視
野で、明部と暗部の境界を追いかけて測定するような非
接触型の光学式変位計で観測している。The magnet operates as described above, but the dynamic characteristics of the movement of the wire 4 hitting paper and ink ribbon (not shown) and recovery, that is, the impact force of the wire 4 and the operating time (collision time and reciprocating time) The impact force of the ear 4 can be measured by colliding the wire 4 with a force detecting element such as a piezo and observing it.On the other hand, the operating time of the wire 4 can be determined by, for example, (see Figure 1 (a)) a magnet. The part A at one end of the coil base 2 is irradiated with light and observed using a non-contact optical displacement meter that tracks and measures the boundary between bright and dark areas in the field of view of a camera (not shown).
この方法は第１図（イ）で紙面の裏側方向より光を当て
＼内側よりのぞき、明暗の境界を追いかけるため、マグ
ネットを１枚並べたものではよいが、装置に組込んだよ
うなマグネットを多数並べたものでは端しか見えず、内
部は見えない。又、他の部品等が邪魔になり、光学式偏
位計では動作時間を観測することが出来ない場合が多い
という欠点があった。In this method, as shown in Figure 1 (a), light is shined from the back side of the paper and seen from the inside, and in order to trace the boundary between light and dark, it is sufficient to use a single magnet lined up, but a magnet like the one built into the device can be used. If you line up a large number of them, you can only see the edges, not the inside. Another drawback is that it is often impossible to observe the operating time with the optical deflection meter because other parts and the like get in the way.
（Ｃ） ’発明の目的
本発明の目的は上記従来の欠点に鑑み、可動コイル型マ
グネットの動作時間を蘭学にチェックできる動特性チェ
ック方式を提供することにある。(C) 'Object of the Invention In view of the above-mentioned drawbacks of the conventional method, the object of the present invention is to provide a dynamic characteristic checking method that can accurately check the operating time of a moving coil type magnet.
（ｄ） 発明の構成
そしてこの目的は本発明によれば、一端部がバネにより
支持され、かつ他端部にハンマチップを備えた部材と、
該部材に固着されたコイルと該コイルを横切る磁束を発
生ずる手段からなる可動コイル型マクネットの動特性チ
ェック方式において、前記マグネット衝突時間と往復時
間の測定を前記コイルの逆起′電圧を観測することによ
り行うことを特徴とする可動コイル型マグネッ］・の動
特性チェック方式を提供することによって達成される。(d) Structure and object of the invention According to the invention, there is provided a member whose one end is supported by a spring and whose other end is provided with a hammer tip;
In a dynamic characteristic checking method for a moving coil type magnet consisting of a coil fixed to the member and a means for generating magnetic flux across the coil, the magnet collision time and reciprocating time are measured and the back electromotive voltage of the coil is observed. This is achieved by providing a method for checking the dynamic characteristics of a moving coil type magnet.
（ｅ） 発明の実施例 以下本発明の実施例を図面によって説明する。(e) Examples of the invention Embodiments of the present invention will be described below with reference to the drawings.
本発明は可動コイルの移動により生ずる逆起電圧を観測
することで、可動コイル型マグネットの衝突時間、往復
時間を知るようにしたものである。The present invention is designed to determine the collision time and reciprocating time of a moving coil type magnet by observing the back electromotive force generated by the movement of the moving coil.
コイルの逆起電圧Ｖは磁束密度Ｂｗｂ／靜、有効磁界中
のコイル長さ１ｍ１コイルの運動速度Ｖ ”／ ｓとし
たとき、
ｖ−Ｂｌｖ〔ボルト〕
の関係にあり、本発明は速度ＶがＯであれば電圧ＶはＯ
であることζこ着目した。本発明は第１図に３−
示すマグネットのコイル３を、第２図に示すマグネット
の駆動回路により駆動し、その時のコイル３の端子間電
圧１７を測定する。なお１４はダイオードを示し、トラ
ンジスタ１５を保護するためのものである。The back electromotive force V of the coil has the relationship v-Blv (volts), where the magnetic flux density Bwb/silence and the motion speed of a coil with a coil length of 1 m in an effective magnetic field are V''/s. If O, then the voltage V is O
We focused on this fact. In the present invention, the magnet coil 3 shown in FIG. 1 is driven by the magnet drive circuit shown in FIG. 2, and the voltage 17 between the terminals of the coil 3 at that time is measured. Note that 14 indicates a diode, which is used to protect the transistor 15.
第３図はコイル３に駆動パルスを印加したときのマグネ
ットの偏位とコイル端子間電圧の変化を示した図である
。FIG. 3 is a diagram showing the deviation of the magnet and the change in the voltage between the coil terminals when a driving pulse is applied to the coil 3.
第３図において、駆動パルスがＯＮになっている間、コ
イル３に電流が流れ、マグネットが動き、コイル３の端
子間に電圧がある。駆動パルスを０−ＦＦすると、マグ
ネットは慣性で若干動いて停止し、以後元に復旧する。In FIG. 3, while the drive pulse is ON, current flows through the coil 3, the magnet moves, and there is a voltage across the terminals of the coil 3. When the drive pulse is changed from 0 to FF, the magnet moves slightly due to inertia, stops, and then returns to its original state.
又コイル端子間電圧はスパイク電流番こより負圧に落ち
るが、慣性によりマグネットが前に動くために、正圧に
転じ、ワイヤ４のプラテン（図示しない）の衝突による
停止で０圧（Ｐ点）となり、以後マグネットの復旧で負
圧となりリバンドして静止する。この時に０圧（Ｑ点）
を経てリバンドする。Also, the voltage between the coil terminals drops to negative pressure due to the spike current, but as the magnet moves forward due to inertia, it changes to positive voltage, and when the wire 4 stops due to collision with the platen (not shown), it becomes 0 voltage (point P). After that, when the magnet is restored, it becomes negative pressure, rebands, and comes to rest. At this time, 0 pressure (Q point)
Reband after .
上記のようなワイヤ４がリホン、紙（図示しな４−
い）を介してプラテン（図示しない）を打撃するＢ点で
可動コイルの運動が止まり、コイル端子間電圧は０″と
なる。又、ワイヤ４が復１１」バネ９の作用により元の
位置に戻った時にも、コイル端子間電圧は０”となるこ
とを利用し、そのＯまでの時間を測定し、最初の０圧（
Ｐ点）才での時間をマグネットの衝突時間（Ｃ）、第２
の０圧（Ｑ点）までの時間をマグネットの往復時間（Ｄ
）とする。その結果、従来の光学式変位計では測定でき
ないような状況にあるマグネットの動作時間がオシロス
コープ等の測定器で、コイル端子間電圧を観測すること
により簡単に測定できる。At point B, where the wire 4 as described above hits the platen (not shown) through the wire and paper (not shown), the movement of the moving coil stops and the voltage between the coil terminals becomes 0''. , when the wire 4 returns to its original position due to the action of the spring 9, the voltage between the coil terminals becomes 0'', and by measuring the time until it reaches 0, the initial 0 voltage (
The time at point P) is the collision time of the magnet (C), the second
The time it takes to reach zero pressure (point Q) is the reciprocating time of the magnet (D
). As a result, the operating time of the magnet, which cannot be measured with a conventional optical displacement meter, can be easily measured by observing the voltage between the coil terminals with a measuring instrument such as an oscilloscope.
（ｆ） 発明の効果
以上、詳細に説明したように、本発明の可動コイル型マ
グネットの動特性チェック方式は可動コイルの逆起電圧
を観測することで、可動コイル型マクネットの衝突時間
、往復時間を知るようにすることにより、従来の光学式
変位計では測定できないような状況にあるマグネットの
動作時間が簡…Ｌｒ−Ｆ−ア・・ノカア志スかｈ里Ｉ叶
十ふｌ）−(f) Effects of the Invention As explained in detail above, the method for checking the dynamic characteristics of the moving coil magnet of the present invention is to observe the back electromotive force of the moving coil, thereby determining the collision time, reciprocation, etc. of the moving coil magnet. By knowing the time, the operating time of the magnet in situations that cannot be measured with conventional optical displacement meters is simplified.
第１図は可動コイル型マグネットの構造を示す断面図で
、（イ）は側断面図、（ロ）は正断面図、第２図はマグ
ネットの駆動回路図、第３図は本発明に係るマグネット
の動作とコイル端子間電圧との関係を示す図である。
葵１図Fig. 1 is a sectional view showing the structure of a moving coil type magnet, (a) is a side sectional view, (b) is a front sectional view, Fig. 2 is a drive circuit diagram of the magnet, and Fig. 3 is a diagram according to the present invention. FIG. 3 is a diagram showing the relationship between the operation of a magnet and the voltage between coil terminals. Aoi 1
Claims (1)
プを備えた部材と、該部材に固着されたコイルと該コイ
ルを横切る磁束を発生する手段からなる可動コイル型マ
グネットの動特性チェック方式において、前記マグネッ
トの衝突時間と往復時間の測定を前記コイルの逆起電圧
を観測することにより行うことを特徴とする可動コイル
型マグネットの動特性チェック方式。In a method for checking the dynamic characteristics of a moving coil type magnet consisting of a member supported by a spring at one end and equipped with a hammer tip at the other end, a coil fixed to the member, and means for generating magnetic flux across the coil. A method for checking dynamic characteristics of a moving coil type magnet, characterized in that a collision time and a reciprocating time of the magnet are measured by observing a back electromotive force of the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19928382A JPS5988803A (en) | 1982-11-12 | 1982-11-12 | Checking system of dynamic characteristic of moving coil type magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19928382A JPS5988803A (en) | 1982-11-12 | 1982-11-12 | Checking system of dynamic characteristic of moving coil type magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5988803A true JPS5988803A (en) | 1984-05-22 |
Family
ID=16405215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19928382A Pending JPS5988803A (en) | 1982-11-12 | 1982-11-12 | Checking system of dynamic characteristic of moving coil type magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5988803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010073705A (en) * | 2008-09-16 | 2010-04-02 | Mikuni Corp | Plunger position detecting device and solenoid valve |
-
1982
- 1982-11-12 JP JP19928382A patent/JPS5988803A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010073705A (en) * | 2008-09-16 | 2010-04-02 | Mikuni Corp | Plunger position detecting device and solenoid valve |
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