JPS625077B2 - - Google Patents
Info
- Publication number
- JPS625077B2 JPS625077B2 JP12529880A JP12529880A JPS625077B2 JP S625077 B2 JPS625077 B2 JP S625077B2 JP 12529880 A JP12529880 A JP 12529880A JP 12529880 A JP12529880 A JP 12529880A JP S625077 B2 JPS625077 B2 JP S625077B2
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- handed
- permanent magnet
- screw shaft
- printing
- 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.)
- Expired
Links
Landscapes
- Character Spaces And Line Spaces In Printers (AREA)
Description
【発明の詳細な説明】
本発明は常にモータを一方向に回転させて、キ
ヤリエツジを往復移動させる簡易プリンタに適し
たキヤリエツジ位置検出装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a carrier position detecting device suitable for a simple printer that constantly rotates a motor in one direction to move the carrier back and forth.
化下、図面によつて説明する。 This will be explained below with reference to drawings.
第１図は本発明の一実施例を示す概略図であ
る。 FIG. 1 is a schematic diagram showing an embodiment of the present invention.
同図において、１は図示せぬモータにより、一
方向に回転するスクリユウシヤフトで、左巻き及
び右巻きのエンドレスの溝１ａ（又は凸部）が形
成されている。２は該スクリユウシヤフト１の溝
１ａに噛み合い図示せぬ印字ヘツドを搭載して左
右に摺動するキヤリエツジ、３は該キヤリエツジ
の一方の端部に取りつけられた第１の永久磁石、
４は該キヤリエツジの他方の端部に取りつけられ
た第２の永久磁石、５はフレーム６に前記第１の
永久磁石及び第２の永久磁石と対向する位置に取
り付けられた検出装置で、前記永久磁石３，４が
通過する毎に電圧が誘起される。 In the figure, reference numeral 1 denotes a screw shaft which is rotated in one direction by a motor (not shown), and has endless left-handed and right-handed grooves 1a (or protrusions) formed therein. 2 is a carrier which engages with the groove 1a of the screw shaft 1 and is equipped with a printing head (not shown) and slides from side to side; 3 is a first permanent magnet attached to one end of the carrier;
4 is a second permanent magnet attached to the other end of the carrier; 5 is a detection device attached to the frame 6 at a position facing the first permanent magnet and the second permanent magnet; A voltage is induced each time the magnets 3 and 4 pass.
第２図は第１図のキヤリア２の動作を示す図、
第３図は第１図のタイミング波形を示す図であ
る。 Figure 2 is a diagram showing the operation of the carrier 2 in Figure 1;
FIG. 3 is a diagram showing the timing waveforms of FIG. 1.
次に、第２図及び第３図も用いて動作を説明す
る。 Next, the operation will be explained using FIGS. 2 and 3 as well.
今、キヤリエツジ２が第１図に示すホームポジ
シヨンにあるとき、第２図においてはの位置で
示される。 When the carrier 2 is now in the home position shown in FIG. 1, it is shown at the position in FIG.
ここで、モータを駆動するとスクリユウシヤフ
ト１が回転し、それに伴つてキヤリエツジ２はま
ず左へ移動し、印字に必要な定速となるための助
走を始める。 When the motor is driven, the screw shaft 1 rotates, and the carriage 2 first moves to the left and begins a run-up to maintain the constant speed required for printing.
したがつて、まず第２の永久磁石４が検出装置
５の前を右から左へと横切り続いて、キヤリエツ
ジ２が左から右へ移動し始めるため、第２の永久
磁石４は検出装置５の前を左から右へと横切るた
め、第３図ロに示すパルスP1が検出される。 Therefore, the second permanent magnet 4 first crosses in front of the detection device 5 from right to left, and then the carrier 2 starts moving from left to right, so that the second permanent magnet 4 crosses in front of the detection device 5. Since it crosses the front from left to right, the pulse P 1 shown in FIG. 3B is detected.
このとき、図示せぬモータは第３図イに示すよ
うに助走期間を過ぎて、定速回転に入つているた
め、キヤリエツジ２は定速で左から右へと移動し
ている。 At this time, as shown in FIG. 3A, the motor (not shown) has passed the run-up period and is rotating at a constant speed, so the carrier 2 is moving from left to right at a constant speed.
したがつて、パルスP1の立下りを印字開始（第
２図Ｃ及び第３図ニ参照）時点とし印字が開始さ
れる。 Therefore, printing is started at the falling edge of pulse P1 (see FIG. 2C and FIG. 3D).
やがて、キヤリエツジ２は印字右端（第２図
Ｄ）に到達し、第３図ニに示すように印字を終了
するが、キヤリエツジ２は更に少し右まで移動
し、移動方向を反転し復帰運動に入る。 Eventually, the carrier 2 reaches the right edge of printing (D in Figure 2) and finishes printing as shown in Figure 3D, but the carrier 2 moves a little further to the right, reverses its direction of movement, and begins the return movement. .
やがて、第１の永久磁石３が検出装置５の前を
横切る（第２図Ｅ参照）と第３図ハに示すパルス
P3が検出されこのパルスP3によつて図示せぬモー
タを停止させる。 Eventually, when the first permanent magnet 3 crosses in front of the detection device 5 (see Fig. 2E), the pulse shown in Fig. 3C is generated.
P3 is detected and a motor (not shown) is stopped by this pulse P3 .
したがつて、図示せぬモータは第３図イに示す
ように減速し、再びキヤリエツジ２は第１図に示
すようにホームポジシヨンに停止する。 Therefore, the motor (not shown) decelerates as shown in FIG. 3A, and the carriage 2 again stops at the home position as shown in FIG. 1.
以上、詳細に説明したように、本発明によれ
ば、右巻き及び左巻きのエンドレスの螺旋溝（又
は凸部）を設けたスクリユウシヤフトを一方向に
回転させると共に、キヤリエツジを前記螺旋溝に
噛み合せることにより左右に摺動させる簡易プリ
ンタにおいて、ホームポジシヨンをキヤリエツジ
の移動可能最左端よりも若干右に設け、印字を開
始する場合にはキヤリエツジを一旦左へ移動させ
て助走することにより、キヤリエツジが移動方向
を反転すると直ちに定速運動に入れるため、印字
機の幅に対する印字可能幅を増加させることがで
きる。 As described above in detail, according to the present invention, the screw shaft provided with right-handed and left-handed endless spiral grooves (or protrusions) is rotated in one direction, and the carriage is engaged with the spiral groove. In a simple printer that slides left and right by moving the carrier, the home position is set slightly to the right of the leftmost movable end of the carrier, and when starting printing, the carrier is moved to the left once and then run up. As soon as the moving direction is reversed, the machine starts to move at a constant speed, so it is possible to increase the printable width relative to the width of the printing machine.
なお、前記実施例ではキヤリエツジに永久磁石
を取り付けたが、電磁石にしても良いし、検出装
置をキヤリエツジに付け、磁石をフレームに固定
しても良いし、検出装置を２個設け磁石を一個設
けても同様な効果が得られることはもちろんであ
る。 In the above embodiment, a permanent magnet is attached to the carrier, but it may be an electromagnet, or a detection device may be attached to the carrier and the magnet fixed to the frame, or two detection devices and one magnet may be provided. Of course, similar effects can be obtained.
第１図は本発明の一実施例を示す概略図、第２
図は第１図のキヤリエツジの動きを示す図、第３
図は第１図のタイムチヤートである。
１……スクリユウシヤフト、２……キヤリエツ
ジ、３……第１の永久磁石、４……第２の永久磁
石、５……検出装置、６……フレーム。
FIG. 1 is a schematic diagram showing one embodiment of the present invention, and FIG.
The figure shows the movement of the carrier in Figure 1, and Figure 3 shows the movement of the carrier.
The figure is a time chart of FIG. 1. DESCRIPTION OF SYMBOLS 1... Screw shaft, 2... Carriage, 3... First permanent magnet, 4... Second permanent magnet, 5... Detection device, 6... Frame.
Claims (1)
は凸部）を設けたスクリユウシヤフトを一方向に
回転させると共に、キヤリエツジを前記螺線溝に
噛み合わせることにより該キヤリエツジを左右に
摺動させる簡易形プリンタにおいて、 ホームポジシヨンをキヤリエツジの移動可能最
左端よりも若干右に設け、印字を開始する場合に
はキヤリエツジを一旦左へ移動させて助走するこ
とによりキヤリエツジが移動方向を反転すると直
ちに定速運動に入ることを特徴とする簡易形プリ
ンタ。[Scope of Claims] 1. By rotating a screw shaft provided with right-handed and left-handed endless spiral grooves (or protrusions) in one direction and engaging the carrier with the spiral groove, the carrier can be rotated from side to side. In a simple printer that slides in the opposite direction, the home position is set slightly to the right of the leftmost movable end of the carrier, and when starting printing, the carrier moves to the left once and runs up, allowing the carrier to adjust the direction of movement. A simple printer that begins constant speed motion immediately after being reversed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12529880A JPS5749589A (en) | 1980-09-11 | 1980-09-11 | Simplified printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12529880A JPS5749589A (en) | 1980-09-11 | 1980-09-11 | Simplified printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5749589A JPS5749589A (en) | 1982-03-23 |
| JPS625077B2 true JPS625077B2 (en) | 1987-02-03 |
Family
ID=14906615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12529880A Granted JPS5749589A (en) | 1980-09-11 | 1980-09-11 | Simplified printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5749589A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4807596B2 (en) | 2008-12-25 | 2011-11-02 | ブラザー工業株式会社 | Image reading device |
-
1980
- 1980-09-11 JP JP12529880A patent/JPS5749589A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5749589A (en) | 1982-03-23 |
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