JPS6056202A - Automatic paper thickness detection mechanism for printer - Google Patents
Automatic paper thickness detection mechanism for printerInfo
- Publication number
- JPS6056202A JPS6056202A JP16435183A JP16435183A JPS6056202A JP S6056202 A JPS6056202 A JP S6056202A JP 16435183 A JP16435183 A JP 16435183A JP 16435183 A JP16435183 A JP 16435183A JP S6056202 A JPS6056202 A JP S6056202A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- carriage
- printing
- rotating shaft
- printing paper
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Handling Of Sheets (AREA)
- Common Mechanisms (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は印字装置のプラテンに装着される印字用紙の紙
厚検出機構に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper thickness detection mechanism for printing paper mounted on a platen of a printing device.
通常、この種の印字装置においては、プラテンに装着さ
れた印字用紙の印字面と印字ヘッド先端との間隔が微少
であるため印字用紙の厚さに応じて上記間隔を調整可能
な調整機構が設けられている。Normally, in this type of printing device, since the distance between the printing surface of the printing paper attached to the platen and the tip of the print head is minute, an adjustment mechanism is provided that can adjust the distance according to the thickness of the printing paper. It is being
しかしながら、従来この調整をオペレータが行なうよう
になってｂＢ試験印字をしながら適正な間隔を見つけだ
さなければならない。このため、オペレータの負担が大
きくしかも時間的なロスも大きく、更には操作ミスの原
因ともなり印字装置に故障を発生させる危険性がある等
多くの問題点があった。However, conventionally, this adjustment has been made by the operator, who must find the appropriate spacing while performing bB test printing. For this reason, there are many problems such as a heavy burden on the operator, a large loss of time, and furthermore, a risk of operational errors and failure of the printing device.
本発明は、プラテンに装着された印字用紙の厚さに応じ
て変化する印字用紙の印字面と印字ヘッド先端との間隔
をあらかじめ定められた間隔に自動的に調整できるよう
にして上記欠点を除去した印字装置の自動紙厚検出機構
を提供せんとするものである。そして、具体的には、一
端側を固定軸へ遊動自在に軸支させ、他端側を、前記固
定軸と平行な回転軸の軸線方向に沿って移動可能な偏芯
部材へ揺動可能に遊挿させたキャリッジと、該キャリッ
ジへ固定され、該キャリッジの揺動時プラテンに当接す
る用紙厚検出部材と、前記回転軸をプラテン側へ付勢す
るバネと、そして該バネの付勢方向と反対方向へ前記回
転軸を一定量回転させる駆動モータとより成る印字装置
の自動紙厚検出機構を提供せんとするものである。The present invention eliminates the above drawbacks by automatically adjusting the distance between the print surface of the print paper and the tip of the print head to a predetermined distance, which changes depending on the thickness of the print paper loaded on the platen. The present invention aims to provide an automatic paper thickness detection mechanism for a printing device. Specifically, one end is movably supported on a fixed shaft, and the other end is swingable on an eccentric member that is movable along the axial direction of a rotating shaft parallel to the fixed shaft. A loosely inserted carriage, a paper thickness detection member fixed to the carriage and in contact with the platen when the carriage swings, a spring that biases the rotating shaft toward the platen, and a biasing direction of the spring. It is an object of the present invention to provide an automatic paper thickness detection mechanism for a printing device comprising a drive motor that rotates the rotation shaft by a certain amount in the opposite direction.
以下本発明の詳細を第１図〜第４図に示す一実施例に基
づいて説明する。The details of the present invention will be explained below based on an embodiment shown in FIGS. 1 to 4.
図中１がキャリッジでキャリッジ１の一端側ハ固定軸２
へ遊動自在に軸支されてオシ、他端側は回転軸３の軸線
方向で移動可能に取り付けられた偏芯部材４へ瘤動可能
に遊挿されている。In the figure, 1 is the carriage, and one end of the carriage 1 is the fixed shaft 2.
The other end of the rotary shaft 3 is freely inserted into an eccentric member 4 which is movably attached to the rotary shaft 3 in an axial direction.
回転軸３は第２図に示すように断面が非円形で角形をな
しており、回転軸３の回転によシ偏芯部材４も回転する
ためキャリッジ１は固定軸２を回動中心として揺動運動
を行い、回転軸３が反時計方向に回転した場合はキャリ
ッジ１に固定した用紙厚検出部材５が、プラテン１３へ
装着した印字用紙１４に当接し、回転軸３が逆に時計方
向へ回転した場合は、前記用紙厚検出部材５が印字用紙
１４から離れるようになっている。As shown in FIG. 2, the rotating shaft 3 has a non-circular, rectangular cross section, and as the rotating shaft 3 rotates, the eccentric member 4 also rotates, so the carriage 1 swings about the fixed shaft 2. When the rotating shaft 3 rotates counterclockwise during a dynamic movement, the paper thickness detection member 5 fixed to the carriage 1 comes into contact with the printing paper 14 attached to the platen 13, and the rotating shaft 3 rotates counterclockwise. When rotated, the paper thickness detection member 5 separates from the printing paper 14.
回転軸３の一端にはレバー１０が固定されておシレバー
１０の先端に掛けられたバネ１１によシ回転軸３を反時
計方向即ちキャリッジ１に固定された用紙厚検出部材５
を印字用紙１４に当接させる方向に力を付勢している。A lever 10 is fixed to one end of the rotating shaft 3, and a spring 11 hung on the tip of the lever 10 moves the rotating shaft 3 counterclockwise, that is, a sheet thickness detecting member 5 fixed to the carriage 1.
A force is applied in a direction to bring the paper into contact with the printing paper 14.
次に回転軸３には外周にウオームギヤ７を有する一方ク
ラッチ６が取り付けられており、ウオームギヤ７には駆
動モータ９の駆動軸に固定したウオーム８が噛み合い、
駆動モータ９の回転を回転軸３に伝達するようになって
いる。この駆動モータ９は、前記バネの付勢方向と反対
方向へ、前記回転軸３を一定量回転させるものである。Next, a one-way clutch 6 having a worm gear 7 on its outer periphery is attached to the rotating shaft 3, and a worm 8 fixed to the drive shaft of a drive motor 9 meshes with the worm gear 7.
The rotation of the drive motor 9 is transmitted to the rotating shaft 3. This drive motor 9 rotates the rotary shaft 3 by a certain amount in a direction opposite to the biasing direction of the spring.
またレバ１０の突起部１０ａは、検出センサ１２の凹部
に入り込むようになっており、信号を図示せぬ制御部へ
送り出し、回転軸３の回転位置を制御するようになって
いる。Further, the protrusion 10a of the lever 10 is configured to fit into the recess of the detection sensor 12, and sends a signal to a control section (not shown) to control the rotational position of the rotation shaft 3.
次に作用を説明する。Next, the effect will be explained.
印字開始の直前〔第２図に示す状態〕に図示せぬ制御部
からの信号により駆動モータ９は一定量正回転し、回転
軸３に取シ付けた一方クラッチ６を反時計方向へ回転さ
せる。一方クラッチ６はゆるみ側に作用するため、回転
軸３はバネ１１の力により反時計方向へ回転してキャリ
ッジ１を反時計方向に回転させ、用紙厚検出部材５を印
字用紙１４に当接させる〔第３図に示す状態〕。このと
き駆動モータ９は用紙厚検出部材５が印字用紙１４に当
接した後も正転するが一方クラッチ６のゆるみ側の作用
によシ空転するのみである。従って用紙１４厚さが異っ
ていても用紙厚検出部材５は、印字用紙１４に当接した
位置で停止するので用紙厚の検出が可能となる。Immediately before the start of printing [the state shown in FIG. 2], the drive motor 9 rotates forward by a certain amount in response to a signal from a control section (not shown), causing the one-way clutch 6 attached to the rotating shaft 3 to rotate counterclockwise. . On the other hand, since the clutch 6 acts on the slack side, the rotating shaft 3 is rotated counterclockwise by the force of the spring 11, rotating the carriage 1 counterclockwise, and bringing the paper thickness detection member 5 into contact with the printing paper 14. [Status shown in Figure 3]. At this time, the drive motor 9 rotates normally even after the paper thickness detection member 5 comes into contact with the printing paper 14, but only idles due to the action of the slack side of the clutch 6. Therefore, even if the thickness of the paper 14 is different, the paper thickness detection member 5 stops at the position where it comes into contact with the printing paper 14, so that the paper thickness can be detected.
次に駆動モータ９を逆回転させることにより一方クラッ
チ６は時計方向へ回転し、一方クラッチ６のしまシ側の
作用によシ回転軸３を時計方向へ回転させてキャリッジ
ｌを時計方向へ回転させ用紙厚検出部材５を印字用紙１
４から離す〔第４図に示す状態〕。このとき印字用紙１
４の印字面とキャリッジ１に塔載した印字ヘッド１５の
先端との間隔は、印字に適性な間隔となるように駆動モ
ータ９の逆回転の量を決めであるため印字用紙１４の用
紙厚に関係なく常に一定した間隔となる。Next, by rotating the drive motor 9 in the reverse direction, the clutch 6 on one side rotates clockwise, and the action of the stripe side of the clutch 6 rotates the rotating shaft 3 clockwise, thereby rotating the carriage l clockwise. the paper thickness detection member 5 to print paper 1
4 [state shown in Figure 4]. At this time, printing paper 1
The distance between the print surface 4 and the tip of the print head 15 mounted on the carriage 1 is determined by the amount of reverse rotation of the drive motor 9 so that the distance is appropriate for printing. Regardless, the interval will always be constant.
次に印字終了後駆動モータ９を検出センサ１２がレバー
１０の突起部１０ａを検出するまで逆転させることによ
り初期の状態（第２図）に戻る。Next, after printing is completed, the drive motor 9 is reversed until the detection sensor 12 detects the protrusion 10a of the lever 10, thereby returning to the initial state (FIG. 2).
本発明は以上説明して来たごときものなので、プラテン
装着した印字用紙の用紙厚を検出し印字面と印字ヘッド
先端との間隔を自動的に調整することができ、オペレー
タの操作を無くシ、時間的なロスや操作ミスによる印字
装置の故障を防止することができるものとなる。Since the present invention is as described above, it is possible to detect the paper thickness of the printing paper attached to the platen and automatically adjust the distance between the printing surface and the tip of the print head, eliminating operator operations. This makes it possible to prevent malfunctions of the printing device due to time loss or operational errors.
第１図は、本発明の一実施例を示す斜視図、そして
第２図、第３図及び第４図は、第１図の実施例の動作を
示す説明図である。
１・・・キャリッジ ２・・・固定軸
３・・・回転軸 ４・・・偏芯部材
５・・・用紙厚検出部材 ９・・・駆動モータ１１・・
・バネ
出願人 日本電気株式会社
第１図
第２図FIG. 1 is a perspective view showing one embodiment of the present invention, and FIGS. 2, 3, and 4 are explanatory diagrams showing the operation of the embodiment of FIG. 1. 1... Carriage 2... Fixed shaft 3... Rotating shaft 4... Eccentric member 5... Paper thickness detection member 9... Drive motor 11...
・Spring applicant: NEC Corporation Figure 1 Figure 2
Claims (1)
記固定軸と平行な回転軸の軸線方向に沿って移動可能な
偏芯部材へ揺動可能に遊挿させたキャリッジと、該キャ
リッジへ固定され、該キャリッジの揺動時プラテンに当
接する用紙厚検出部材と、前記回転軸をプラテン側へ付
勢するバネと、そして該バネの付勢方向と反対方向へ前
記回転軸を一定量回転させる駆動モータとよシ成る印字
装置の自動紙厚検出機構。A carriage, one end of which is freely pivoted to a fixed shaft, and the other end of which is swingably inserted into an eccentric member that is movable along the axial direction of a rotating shaft parallel to the fixed shaft; , a paper thickness detection member that is fixed to the carriage and comes into contact with the platen when the carriage swings, a spring that biases the rotating shaft toward the platen, and a spring that biases the rotating shaft toward the platen in a direction opposite to the biasing direction of the spring. Automatic paper thickness detection mechanism for printing equipment consisting of a drive motor that rotates a certain amount of paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16435183A JPS6056202A (en) | 1983-09-07 | 1983-09-07 | Automatic paper thickness detection mechanism for printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16435183A JPS6056202A (en) | 1983-09-07 | 1983-09-07 | Automatic paper thickness detection mechanism for printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6056202A true JPS6056202A (en) | 1985-04-01 |
Family
ID=15791505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16435183A Pending JPS6056202A (en) | 1983-09-07 | 1983-09-07 | Automatic paper thickness detection mechanism for printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6056202A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6244481A (en) * | 1985-08-23 | 1987-02-26 | Nec Corp | Mechanism for adjusting printing gap in printer |
| JPS62128778A (en) * | 1985-11-30 | 1987-06-11 | Usac Electronics Ind Co Ltd | Position detection system in printer |
| EP0391829A2 (en) * | 1989-04-03 | 1990-10-10 | International Business Machines Corporation | Automatic gap adjusting mechanism |
| US5316395A (en) * | 1990-04-25 | 1994-05-31 | Fujitsu Limited | Printing apparatus having head GAP adjusting device. |
| US20110179660A1 (en) * | 2010-01-23 | 2011-07-28 | Hon Hai Precision Industry Co., Ltd. | Probe apparatus |
-
1983
- 1983-09-07 JP JP16435183A patent/JPS6056202A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6244481A (en) * | 1985-08-23 | 1987-02-26 | Nec Corp | Mechanism for adjusting printing gap in printer |
| JPS62128778A (en) * | 1985-11-30 | 1987-06-11 | Usac Electronics Ind Co Ltd | Position detection system in printer |
| JPH0552277B2 (en) * | 1985-11-30 | 1993-08-04 | Pfu Ltd | |
| US5051008A (en) * | 1989-03-04 | 1991-09-24 | International Business Machines Corp. | Automatic gap adjusting mechanism |
| EP0391829A2 (en) * | 1989-04-03 | 1990-10-10 | International Business Machines Corporation | Automatic gap adjusting mechanism |
| US5316395A (en) * | 1990-04-25 | 1994-05-31 | Fujitsu Limited | Printing apparatus having head GAP adjusting device. |
| US5499876A (en) * | 1990-04-25 | 1996-03-19 | Fujitsu Limited | Printing apparatus having head gap adjusting device |
| US20110179660A1 (en) * | 2010-01-23 | 2011-07-28 | Hon Hai Precision Industry Co., Ltd. | Probe apparatus |
| US8272141B2 (en) * | 2010-01-23 | 2012-09-25 | Hon Hai Precision Industry Co., Ltd. | Probe apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0661983B2 (en) | Automatic gear adjustment mechanism | |
| US4572418A (en) | Print paper feeding apparatus | |
| JPS6056202A (en) | Automatic paper thickness detection mechanism for printer | |
| JPS61171377A (en) | Automatic paper thickness detecting mechanism for printer | |
| JPH0720717B2 (en) | Paper feeding mechanism of printer | |
| US4875790A (en) | Printing device having gear connected multiple feed paths | |
| JP4581804B2 (en) | Rotational torque adjusting device, ink ribbon conveying device, and printer | |
| JPS60212372A (en) | Automatic paper thickness adjusting mechanism for printer | |
| JPS5853465A (en) | Printing pressure adjustor for impact printer | |
| JP2707228B2 (en) | Paper feed roll drive for printer | |
| JPS60212373A (en) | Automatic paper thickness adjusting mechanism for printer | |
| JPS6244480A (en) | Mechanism for automatically detecting thickness of paper in printing apparatus | |
| US4030412A (en) | Duplicating machine | |
| JP2784390B2 (en) | Serial printer | |
| US4312269A (en) | Dot printing apparatus | |
| JPH0746533Y2 (en) | Sizing device | |
| JPH03161381A (en) | Device to adjust distance across paper of printing device | |
| JP2001310521A (en) | Platen gap automatic adjustment device | |
| JPH0647737Y2 (en) | Paper thickness measuring device in printer | |
| JPS63194973A (en) | Paper gap adjusting mechanism | |
| JP2531352Y2 (en) | Printer drive mechanism | |
| JPS60245583A (en) | Thermal transfer printer | |
| JPH04135359U (en) | Printer head gap adjustment mechanism | |
| JP2022074780A (en) | Printer, and control method for printer | |
| JPH0221239Y2 (en) |