JPH1035051A - Carriage moving mechanism - Google Patents

Carriage moving mechanism

Info

Publication number
JPH1035051A
JPH1035051A JP19033696A JP19033696A JPH1035051A JP H1035051 A JPH1035051 A JP H1035051A JP 19033696 A JP19033696 A JP 19033696A JP 19033696 A JP19033696 A JP 19033696A JP H1035051 A JPH1035051 A JP H1035051A
Authority
JP
Japan
Prior art keywords
belt
carriage
groove
absorbing material
vibration absorbing
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
Application number
JP19033696A
Other languages
Japanese (ja)
Inventor
Fumikazu Sato
史和 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brother Industries Ltd
Original Assignee
Brother Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to JP19033696A priority Critical patent/JPH1035051A/en
Publication of JPH1035051A publication Critical patent/JPH1035051A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J19/00Character- or line-spacing mechanisms
    • B41J19/18Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
    • B41J19/20Positive-feed character-spacing mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J19/00Character- or line-spacing mechanisms
    • B41J19/04Sound-deadening or shock-absorbing devices or measures therein
    • B41J19/06Resilient mounting of mechanism

Landscapes

  • Ink Jet (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

PROBLEM TO BE SOLVED: To achieve printing with a high accuracy by preventing the transfer of a belt vibration to a carriage by fixing a belt across a pair of pulleys to the carriage via a vibration absorbing material. SOLUTION: A groove 31 having a width larger than a belt 15 thickness is formed between a pair of walls 30, 30 on the lower face of a carriage 10. Ruggedness 32 is formed on an inner side face of the groove 31 corresponding to the ruggedness of the teeth of the belt 15. A vibration absorbing material 33 is provided between the groove 31 and the belt 15. Furthermore, the vibration absorbing material 33 is provided zigzag along the ruggedness 32. By interposing the belt 15 from both inner and outer faces accordingly, the belt 15 is held in the groove 31. Since the vibration absorbing material 33 is made from a natural or synthetic rubber, or a damping rubber, and inserted between the groove 31 and the belt 15 with pressure, even when the belt 15 vibrates, the vibration can be absorbed by the vibration absorbing material 33. As a result, a high quality printing can be achieved.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、印字ヘッド等をキ
ャリッジに搭載して移動するキャリッジ移動機構に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carriage moving mechanism for moving a print head or the like mounted on a carriage.

【0002】[0002]

【従来の技術および発明が解決しようとする課題】イン
クジェット式印字装置をはじめシリアル式印字装置等に
おいては、印字ヘッドを搭載したキャリッジを、一対の
プーリ間に掛け渡したベルトにより移動し、その移動方
向に印字動作をする。
2. Description of the Related Art In a serial printing apparatus including an ink jet printing apparatus, a carriage having a print head is moved by a belt stretched between a pair of pulleys. Print in the direction.

【0003】従来、ベルトはキャリッジの壁面に直接挟
持する等して固定してあり、プーリを支える軸と軸受の
ガタ、あるいはそれを駆動するモータ取付位置の振れ等
によりベルトが振動したり、またキャリッジの停止・始
動にともないベルトが振動し、その振動がキャリッジに
伝わり、印字精度に影響を与えていた。特に1インチ当
たり360ドットまたは720ドット、あるいはそれ以
上の高解像度で印字するインクジェット式印字装置で
は、高精度でドット位置を管理する必要があり、微細な
振動でもきれいな印字ができなくなる。
Conventionally, the belt is fixed by directly sandwiching it between the wall surfaces of a carriage or the like. The belt vibrates due to backlash between a shaft supporting a pulley and a bearing or a motor mounting position for driving the belt. The belt vibrates when the carriage is stopped and started, and the vibration is transmitted to the carriage, thereby affecting printing accuracy. In particular, in an ink jet printing apparatus that prints at a high resolution of 360 dots or 720 dots per inch or more, it is necessary to control the dot position with high precision, and fine printing cannot be performed even with minute vibration.

【0004】またキャリッジに画像読取ヘッドを載せた
画像読取装置においても、同様にベルトの振動により、
高精度に読み取り動作ができない。
In an image reading apparatus having an image reading head mounted on a carriage, the vibration of the belt similarly causes
The reading operation cannot be performed with high accuracy.

【0005】本発明は、ベルトの振動がキャリッジに伝
わるのを少なくし、以て高精度に印字、または読み取り
動作をすることができるようにするものである。
The present invention is intended to reduce the transmission of the vibration of the belt to the carriage, so that the printing or reading operation can be performed with high accuracy.

【0006】[0006]

【課題を解決するための手段および発明の効果】この目
的を達成するために、請求項1に記載の発明は、一対の
プーリ間に掛け渡したベルトにキャリッジを固定し、プ
ーリの回転によりキャリッジを移動するものにおいて、
前記ベルトを前記キャリッジに振動吸収材を介して固定
したことを特徴とするキャリッジ移動機構にある。
In order to achieve this object, according to the first aspect of the present invention, a carriage is fixed to a belt stretched between a pair of pulleys, and the carriage is rotated by rotation of the pulleys. In moving
The carriage moving mechanism is characterized in that the belt is fixed to the carriage via a vibration absorbing material.

【0007】これにより、プーリを支える軸と軸受のガ
タ、あるいはそれを駆動するモータ取付位置の振れ等に
よりベルトが振動したり、またキャリッジの停止・始動
にともないベルトが振動しても、その振動は振動吸収材
により吸収され、キャリッジに伝わることが少なくな
り、高精度に印字、または読み取り動作をすることがで
きる。
As a result, even if the belt vibrates due to backlash between the shaft supporting the pulley and the bearing or the mounting position of the motor for driving the belt, and even if the belt vibrates due to the stop / start of the carriage, the vibration is also generated. Is absorbed by the vibration absorbing material and is less transmitted to the carriage, so that printing or reading operation can be performed with high accuracy.

【0008】また上記構成において好ましくは、前記キ
ャリッジに前記ベルトを挿入する溝を形成し、その溝と
ベルトの間に前記振動吸収材を圧入した構成とすること
ができる。これにより、ベルトをキャリッジの溝に、振
動吸収材を圧入しながら挿入することににより容易に固
定することができる。
Preferably, in the above configuration, a groove for inserting the belt is formed in the carriage, and the vibration absorbing material is press-fitted between the groove and the belt. Accordingly, the belt can be easily fixed by inserting the vibration absorbing material into the groove of the carriage while press-fitting the vibration absorbing material.

【0009】さらに上記構成において好ましくは、前記
ベルトは歯付きベルトであって、前記溝は前記歯付きベ
ルトの歯に対応した凹凸を有し、前記振動吸収材は、前
記歯付きベルトの歯と前記溝の凹凸に沿って、ジグザグ
状に位置する構成とすることができる。これにより、ベ
ルトの移動力は、ベルトの歯と溝の凹凸とのかみ合いに
より、キャリッジに確実に伝達されるとともに、両者間
にジグザグ状に位置する振動吸収材により振動はキャリ
ッジに伝わることが少ない。
In the above-mentioned structure, preferably, the belt is a toothed belt, the groove has irregularities corresponding to the teeth of the toothed belt, and the vibration absorbing material is in contact with the teeth of the toothed belt. It is possible to adopt a configuration in which it is located in a zigzag shape along the unevenness of the groove. Thereby, the moving force of the belt is reliably transmitted to the carriage by the engagement between the belt teeth and the unevenness of the groove, and the vibration is less transmitted to the carriage by the vibration absorbing material located in a zigzag shape between the two. .

【0010】上記各構成のいずれかにおいて好ましく
は、さらに前記キャリッジの移動位置を検出するための
指標を有するエンコーダとその指標を検出するセンサか
らなる検出手段を備える構成とすることができる。これ
により、ベルトの始動時または停止時、振動吸収材が圧
縮または伸張されても、キャリッジの位置検出には支障
がなく、高精度に印字、または読み取り動作をすること
ができる。
[0010] In any of the above-mentioned configurations, preferably, the apparatus may further include an encoder having an index for detecting the moving position of the carriage, and a detecting means including a sensor for detecting the index. Thus, even when the vibration absorbing material is compressed or expanded when the belt is started or stopped, the position of the carriage is not hindered, and the printing or reading operation can be performed with high accuracy.

【0011】さらに上記各構成は、前記キャリッジに、
インク滴を吐出して印字媒体に印字するインクジェット
式印字ヘッドを搭載したインクジェット式印字装置に適
用して、高解像度の印字を高精度に実行することができ
る。
[0011] Further, each of the above-described structures may include
By applying the present invention to an ink jet printing apparatus equipped with an ink jet print head that prints on a print medium by discharging ink droplets, high-resolution printing can be executed with high accuracy.

【0012】[0012]

【発明の実施の形態】以下、本発明をインクジェット式
印字装置に具体化した図面を参照して説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings embodied in an ink jet printing apparatus.

【0013】印字ヘッド20は、インク滴を吐出して印
字媒体に印字するインクジェット式印字ヘッドで、キャ
リッジ10に搭載されている。図1において、印字ヘッ
ド20の向こう側に印字媒体が垂直状態に配置される。
The print head 20 is an ink jet print head that discharges ink droplets to print on a print medium, and is mounted on the carriage 10. In FIG. 1, the print medium is arranged vertically beyond the print head 20.

【0014】キャリッジ10は、印字媒体と平行に延び
るガイドバー11、12に沿って摺動可能に支持され、
モータ(図示せず)によって駆動される駆動側プーリ1
3と従動側プーリ14間に掛け渡されたベルト15によ
り、印字媒体と平行に移動される。ベルト15は内面に
凹凸状の歯を有する歯付きベルト、いわゆるタイミング
ベルトであり、両プーリ13、14はそのベルトの歯に
かみ合う歯を有する歯付きプーリである。キャリッジ1
0の移動位置は、位置検出手段によって検出され、その
検出にもとづいて印字ヘッド20を駆動するためのタイ
ミング信号がつくられる。位置検出手段は、キャリッジ
の移動方向と平行に設けられ、等ピッチに指標を有する
エンコーダ部材16と、その指標を読み取るセンサ17
から構成される。
The carriage 10 is slidably supported along guide bars 11 and 12 extending in parallel with the print medium.
Driving pulley 1 driven by a motor (not shown)
The print medium is moved in parallel with the print medium by a belt 15 stretched between the pulley 3 and the driven pulley 14. The belt 15 is a toothed belt having uneven teeth on its inner surface, a so-called timing belt. The pulleys 13 and 14 are toothed pulleys having teeth that mesh with the teeth of the belt. Carriage 1
The 0 movement position is detected by the position detection means, and a timing signal for driving the print head 20 is generated based on the detection. The position detecting means is provided in parallel with the moving direction of the carriage, and has an encoder member 16 having an index at an equal pitch, and a sensor 17 for reading the index.
Consists of

【0015】ベルト15をキャリッジ10に固定するた
めの構成は、図2に詳細に示す。キャリッジ10の下面
には、一対の壁30、30間にベルト15の厚さよりも
幅の広い溝31が形成され、溝31の一方の内側面には
ベルト15の歯の凹凸に対応した凹凸32が形成されて
いる。溝31とベルト15の間には、振動吸収材33が
設けられる。振動吸収材33は、溝31の対向する両内
側面、底面に沿って配置され、かつ凹凸32に沿ってジ
グザグ状に配置されている。つまり、ベルト15を内外
両面から挟むようにして、そのベルト15を溝31内に
保持する。振動吸収材33は、天然あるいは合成ゴム、
好ましくは反発弾性の小さい制振ゴム、例えばハネナイ
ト(商品名:内外ゴム株式会社製)が使用され、溝31
とベルト15の間に圧入される。これにより、ベルト1
5は振動吸収材33とともに溝31に挿入するだけで固
定される。
The structure for fixing the belt 15 to the carriage 10 is shown in detail in FIG. On the lower surface of the carriage 10, a groove 31 wider than the thickness of the belt 15 is formed between the pair of walls 30, 30, and on one inner surface of the groove 31, irregularities 32 corresponding to the irregularities of the teeth of the belt 15 are formed. Are formed. A vibration absorbing material 33 is provided between the groove 31 and the belt 15. The vibration absorbing members 33 are arranged along both inner side surfaces and the bottom surface of the groove 31 facing each other, and are arranged in zigzag along the irregularities 32. That is, the belt 15 is held in the groove 31 so as to sandwich the belt 15 from both the inside and outside. The vibration absorbing material 33 is made of natural or synthetic rubber,
Preferably, a vibration damping rubber having a low rebound resilience, for example, honey night (trade name: manufactured by Naigai Rubber Co., Ltd.) is used.
And the belt 15. Thereby, the belt 1
5 is fixed simply by inserting it into the groove 31 together with the vibration absorbing material 33.

【0016】また、ベルト15の歯の凸と溝の凹、歯の
凹と溝の凸がそれぞれ複数箇所において対応しているの
で、ベルト15の移動力はキャリッジ10に確実に伝達
される。プーリを支える軸と軸受(図示せず)のガタ、
あるいはそれを駆動するモータ取付位置の振れ等により
ベルト15が振動したり、またキャリッジの停止・始動
にともないベルト15が振動しても、その振動は振動吸
収材33により吸収され、キャリッジに伝わることが少
なくなり、高精度に印字動作をすることができる。ベル
ト15の始動時または停止時に振動吸収材33が圧縮ま
たは伸張され、キャリッジの動作遅れを生じる可能性が
あるが、位置検出手段によって印字ヘッド20を駆動す
るためのタイミング信号がつくられているので、印字動
作には支障はない。
Since the convexities of the teeth and the grooves of the belt 15 and the concaves of the teeth and the grooves correspond to each other at a plurality of positions, the moving force of the belt 15 is reliably transmitted to the carriage 10. The backlash of the shaft supporting the pulley and the bearing (not shown),
Alternatively, even if the belt 15 vibrates due to the vibration of the motor mounting position for driving the belt, or the belt 15 vibrates due to the stop / start of the carriage, the vibration is absorbed by the vibration absorbing material 33 and transmitted to the carriage. And the printing operation can be performed with high accuracy. When the belt 15 starts or stops, the vibration absorbing member 33 is compressed or expanded, which may cause a delay in the operation of the carriage. However, since the timing signal for driving the print head 20 is generated by the position detecting unit, the timing signal is generated. There is no problem in the printing operation.

【0017】なお、キャリッジ10に画像読取ヘッドを
載せた画像読取装置においても、同様の構成で実施する
ことができる。
It should be noted that an image reading apparatus in which an image reading head is mounted on the carriage 10 can be implemented with a similar configuration.

【図面の簡単な説明】[Brief description of the drawings]

【図1】キャリッジ移動機構の斜視図。FIG. 1 is a perspective view of a carriage moving mechanism.

【図2】キャリッジの一部拡大下面図。FIG. 2 is a partially enlarged bottom view of the carriage.

【符号の説明】[Explanation of symbols]

10 キャリッジ 15 ベルト 20 印字ヘッド 31 溝 33 振動吸収材 Reference Signs List 10 carriage 15 belt 20 print head 31 groove 33 vibration absorbing material

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 一対のプーリ間に掛け渡したベルトにキ
ャリッジを固定し、プーリの回転によりキャリッジを移
動するものにおいて、 前記ベルトを前記キャリッジに振動吸収材を介して固定
したことを特徴とするキャリッジ移動機構。
1. A method of fixing a carriage to a belt stretched between a pair of pulleys and moving the carriage by rotation of the pulley, wherein the belt is fixed to the carriage via a vibration absorbing material. Carriage moving mechanism.
【請求項2】 請求項1において、前記キャリッジに前
記ベルトを挿入する溝を形成し、その溝とベルトの間に
前記振動吸収材を圧入したことを特徴とするキャリッジ
移動機構。
2. The carriage moving mechanism according to claim 1, wherein a groove for inserting the belt is formed in the carriage, and the vibration absorbing material is press-fitted between the groove and the belt.
【請求項3】 請求項2において、前記ベルトは歯付き
ベルトであって、前記溝は前記歯付きベルトの歯に対応
した凹凸を有し、前記振動吸収材は、前記歯付きベルト
の歯と前記溝の凹凸に沿って、ジグザグ状に位置するこ
とを特徴とするキャリッジ移動機構。
3. The toothed belt according to claim 2, wherein the belt is a toothed belt, the groove has irregularities corresponding to the teeth of the toothed belt, and the vibration absorbing material is in contact with the teeth of the toothed belt. A carriage moving mechanism, which is located in a zigzag shape along irregularities of the groove.
【請求項4】 請求項1から3のいずれかにおいて、さ
らに前記キャリッジの移動位置を検出するための指標を
有するエンコーダとその指標を検出するセンサからなる
検出手段を備えることを特徴とするキャリッジ移動機
構。
4. The carriage movement according to claim 1, further comprising an encoder having an index for detecting the movement position of the carriage, and a detection unit including a sensor for detecting the index. mechanism.
【請求項5】 請求項1から4のいずれかにおいて、前
記キャリッジは、インク滴を吐出して印字媒体に印字す
るインクジェット式印字ヘッドを搭載していることを特
徴とするキャリッジ移動機構。
5. The carriage moving mechanism according to claim 1, wherein the carriage is equipped with an ink jet print head for discharging ink droplets and printing on a print medium.
JP19033696A 1996-07-19 1996-07-19 Carriage moving mechanism Pending JPH1035051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19033696A JPH1035051A (en) 1996-07-19 1996-07-19 Carriage moving mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19033696A JPH1035051A (en) 1996-07-19 1996-07-19 Carriage moving mechanism

Publications (1)

Publication Number Publication Date
JPH1035051A true JPH1035051A (en) 1998-02-10

Family

ID=16256505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19033696A Pending JPH1035051A (en) 1996-07-19 1996-07-19 Carriage moving mechanism

Country Status (1)

Country Link
JP (1) JPH1035051A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1291191A1 (en) * 2001-09-07 2003-03-12 Canon Kabushiki Kaisha Recording apparatus
EP1642740A1 (en) * 2004-09-28 2006-04-05 Seiko Epson Corporation Drive conrolling method for carriage and computer readable medium including drive controlling program, electronic apparatus, recording apparatus, and liquid ejecting apparatus
US7611224B2 (en) 2005-03-29 2009-11-03 Seiko Epson Corporation Connection unit for connecting and holding belt and carriage, recording apparatus and liquid ejecting apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1291191A1 (en) * 2001-09-07 2003-03-12 Canon Kabushiki Kaisha Recording apparatus
EP1642740A1 (en) * 2004-09-28 2006-04-05 Seiko Epson Corporation Drive conrolling method for carriage and computer readable medium including drive controlling program, electronic apparatus, recording apparatus, and liquid ejecting apparatus
US7121747B2 (en) 2004-09-28 2006-10-17 Seiko Epson Corporation Drive controlling method for carriage and computer readable medium including drive controlling program, electronic apparatus, recording apparatus, and liquid ejecting apparatus
US7611224B2 (en) 2005-03-29 2009-11-03 Seiko Epson Corporation Connection unit for connecting and holding belt and carriage, recording apparatus and liquid ejecting apparatus

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