JP4923878B2 - Recording device, liquid ejecting device - Google Patents

Recording device, liquid ejecting device Download PDF

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JP4923878B2
JP4923878B2 JP2006240559A JP2006240559A JP4923878B2 JP 4923878 B2 JP4923878 B2 JP 4923878B2 JP 2006240559 A JP2006240559 A JP 2006240559A JP 2006240559 A JP2006240559 A JP 2006240559A JP 4923878 B2 JP4923878 B2 JP 4923878B2
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recording
medium
swing
swinging
transported
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JP2008062439A (en
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俊生 三宅
和久 中村
泰康 奥田
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セイコーエプソン株式会社
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<P>PROBLEM TO BE SOLVED: To ensure the smooth carrying of a medium to be carried at the time of carrying from the upstream side to the downstream side while preventing the lift from occurring when the medium to be carried is carried from the downstream side to the upstream side. <P>SOLUTION: This lift regulating apparatus 30 which regulates the lift of a printing sheet is equipped with a rocking member 31, and a torsion coil spring 32 which applies regulation to the rocking motion of the rocking member 31. At a position which can engage with one end 32a of the torsion coil spring 32, a contact section 43a is installed. When the rocking member 31 is pushed up by the printing sheet which is moving from the upstream side to the downstream side, and rocks clockwise as shown in the figure, the rocking member 31 is placed under a freely rockable state in which the regulation from the torsion coil spring 32 is not applied. When the rocking member 31 is pushed up by the printing sheet which is moving from the downstream side to the upstream side, and rocks counterclockwise as shown in the figure, the one end 32a of the torsion coil spring 32 comes into contact with the contact section 43a, and the rocking member 31 is placed under a regulated state in which the regulation from the torsion coil spring 32 is applied. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

本発明は、被搬送媒体を支持するとともに下流側或いは上流側へ案内する案内部材と対向する位置に設けられ、被搬送媒体の前記案内部材からの浮き上がりを規制する浮き上がり規制装置並びにこれを備えた記録装置および液体噴射装置に関する。
ここで、液体噴射装置とは、インクジェット式記録ヘッドが用いられ、該記録ヘッドからインクを吐出して被記録媒体に記録を行うプリンタ、複写機およびファクシミリ等の記録装置に限らず、インクに代えてその用途に対応する液体を前記インクジェット式記録ヘッドに相当する液体噴射ヘッドから被記録媒体に相当する被噴射媒体に噴射して、前記液体を前記被噴射媒体に付着させる装置を含む意味で用いる。
The present invention is provided at a position opposed to a guide member that supports the medium to be transported and guides it to the downstream side or the upstream side, and includes a lift regulating device that regulates the lift of the medium to be transported from the guide member, and the same. The present invention relates to a recording apparatus and a liquid ejecting apparatus.
Here, the liquid ejecting apparatus uses an ink jet recording head, and is not limited to a recording apparatus such as a printer, a copying machine, and a facsimile machine that discharges ink from the recording head to perform recording on a recording medium. And a device that ejects a liquid corresponding to the application from a liquid ejecting head corresponding to the ink jet recording head to an ejected medium corresponding to a recording medium, and adheres the liquid to the ejected medium. .
液体噴射ヘッドとして、前記記録ヘッドの他に、液晶ディスプレー等のカラーフィルター製造に用いられる色材噴射ヘッド、有機ELディスプレーや面発光ディスプレー(FED)等の電極形成に用いられる電極材(導電ペースト)噴射ヘッド、バイオチップ製造に用いられる生体有機物噴射ヘッド、精密ピペットとしての試料噴射ヘッド等が挙げられる。   In addition to the recording head, as a liquid ejecting head, a color material ejecting head used for manufacturing a color filter such as a liquid crystal display, and an electrode material (conductive paste) used for forming an electrode such as an organic EL display or a surface emitting display (FED) Examples thereof include an ejection head, a bioorganic matter ejection head used for biochip production, and a sample ejection head as a precision pipette.
記録装置或いは液体噴射装置の一例としてのプリンタには、被搬送媒体の一例としての記録用紙のおもて側に記録を実行した後、これをプリンタ外部に排出せずに、上流側に逆送りして反転経路内に引き込み、裏返して記録 用紙のうら面に記録を実行する、所謂両面記録を実行可能なものがある。(例えば、特許文献1、2参照)
特開2004−315195号公報 特開平7−323941号公報
For a printer as an example of a recording apparatus or a liquid ejecting apparatus, after recording is performed on the front side of a recording sheet as an example of a transported medium, the recording paper is not discharged to the outside of the printer, but is fed back upstream. Then, there is a type that can perform so-called double-sided recording, in which it is drawn into the reverse path and turned over to execute recording on the back side of the recording paper. (For example, see Patent Documents 1 and 2)
JP 2004-315195 A Japanese Unexamined Patent Publication No. 7-323941
記録用紙を反転経路内に引き込む際、記録用紙はおもて面記録時の用紙搬送方向とは逆方向に搬送される。この時、逆方向に搬送される記録用紙の先端(おもて面記録時における用紙後端)が、用紙搬送経路内の構成要素に引っ掛かる虞がある。特に、インクジェットプリンタにおいては、記録用紙を記録ヘッド下へ搬送する搬送ローラが、記録用紙のプラテンからの浮き上がりを防止する為に、記録用紙をプラテンに向けて下向きに押し付けながら搬送する様構成されている為、この搬送ローラによって記録用紙を逆送りすると、記録用紙の進む方向が上向きとなり、用紙搬送経路内の構成要素に引っ掛かり易い。   When the recording sheet is pulled into the reversing path, the recording sheet is conveyed in the direction opposite to the sheet conveying direction at the front side recording. At this time, the leading edge of the recording paper conveyed in the reverse direction (the trailing edge of the paper when recording on the front side) may be caught by the components in the paper conveyance path. In particular, in an inkjet printer, a conveyance roller that conveys a recording sheet below the recording head is configured to convey the recording sheet while pressing the recording sheet downward toward the platen in order to prevent the recording sheet from lifting from the platen. Therefore, when the recording paper is reversely fed by the transport roller, the recording paper advances in the upward direction and is easily caught by the components in the paper transport path.
この様な問題を解消すべく、記録用紙の浮き上がりを規制する部材を用紙搬送経路に単に設けたのでは、記録用紙を反転経路内に引き込む為に逆送りする際には用紙の浮き上がり防止効果が得られても、記録用紙に記録を実行すべく順送りする際には搬送負荷となり、記録品質の低下を招く虞がある。   In order to solve such a problem, simply providing a member for restricting the lifting of the recording paper in the paper transport path has the effect of preventing the paper from lifting when the recording paper is reversely fed so as to be pulled into the reverse path. Even if it is obtained, when the recording paper is sequentially fed so as to perform recording, it becomes a transport load, and there is a possibility that the recording quality is deteriorated.
加えて、光ディスク等の高剛性媒体を例えば樹脂材料によって形成されたプレート形状を成すトレイにセットし、このトレイを用紙搬送経路の下流側から上流側に向けて給送する構成を採用する場合には、記録用紙の浮き上がりを規制する部材によって用紙搬送経路の高さが狭められ、トレイの円滑な給送を阻害される虞もある。   In addition, when adopting a configuration in which a highly rigid medium such as an optical disk is set on a tray having a plate shape formed of, for example, a resin material, and the tray is fed from the downstream side to the upstream side of the paper transport path. In this case, the height of the paper transport path is narrowed by a member that restricts the lifting of the recording paper, and there is a risk that smooth feeding of the tray may be hindered.
そこで本発明はこの様な問題に鑑み成されたものであり、その課題は、被搬送媒体を下流側から上流側に向けて搬送(逆方向送り)する際の被搬送媒体の浮き上がりを防止しながら、上流側から下流側に向けて搬送(正方向送り)する際の円滑な搬送を確保し、更には光ディスク等の媒体をセットしたトレイを下流側から上流側に向けて給送する際にも充分な高さの搬送経路を確保することにある。   Accordingly, the present invention has been made in view of such problems, and the problem is to prevent the transported medium from being lifted when transporting the transported medium from the downstream side toward the upstream side (reverse feed). However, when transporting from the upstream side toward the downstream side (forward feeding), smooth conveyance is ensured, and further, when feeding a tray on which a medium such as an optical disk is set from the downstream side toward the upstream side. Is to secure a sufficiently high conveyance path.
上記課題を解決するために、本発明の記録装置は、被搬送媒体に記録を行う記録手段と、 前記記録手段に対して上流側に位置し、被搬送媒体を支持するとともに被搬送媒体の搬送を案内する案内部材と、前記案内部材と対向する位置に設けられ、被搬送媒体の前記案内部材からの浮き上がりを規制する浮き上がり規制装置と、を備え、前記浮き上がり規制装置は、被搬送媒体の搬送経路を遮る様に配置され、被搬送媒体が接触し該被搬送媒体の移動に伴って、前記記録手段側の搬送経路あるいは前記記録手段とは反対側の搬送経路に向けて揺動する揺動部材と、前記揺動部材の前記記録手段とは反対側の搬送経路に向けた揺動動作に規制を加える規制手段と、を備え、前記揺動部材は、前記被搬送媒体によって前記記録手段側の搬送経路に向けて揺動する際には、前記規制手段からの規制を受けずに揺動し、前記被搬送媒体によって前記記録手段とは反対側の搬送経路に向けて揺動する際には、前記規制手段からの規制を受けて揺動することを特徴とする。
また、本発明の第1の態様は、被搬送媒体を支持するとともに下流側或いは上流側へ案内する案内部材と対向する位置に設けられ、被搬送媒体の前記案内部材からの浮き上がりを規制する浮き上がり規制装置であって、被搬送媒体の搬送経路を遮る様に配置され、被記録媒体によって押し上げられることにより、前記搬送経路を側視して揺動する揺動部材と、前記揺動部材の揺動動作に規制を加える規制手段と、を備え、前記揺動部材が、被搬送媒体の搬送方向に応じて、前記被搬送媒体によって押し上げられる際にとる、前記規制手段からの規制を受けない自由揺動可能な第1の状態と、前記規制手段からの規制を受ける第2の状態とを切り換え可能に構成されていることを特徴とする。
In order to solve the above-described problems, a recording apparatus of the present invention includes a recording unit that records on a transported medium, and is positioned upstream of the recording unit, supports the transported medium, and transports the transported medium. And a lift regulating device that is provided at a position facing the guide member and regulates the lift of the transported medium from the guide member, and the lift restricting device transports the transported medium. Swing which is arranged so as to block the path and swings toward the transport path on the recording means side or the transport path on the opposite side of the recording means as the transported medium comes into contact with the transported medium. And a regulating unit that regulates a swinging operation of the swinging member toward the transport path opposite to the recording unit. The swinging member is arranged on the recording unit side by the medium to be transported. Suitable for When swinging without being regulated by the regulating means, and when swinging toward the transport path opposite to the recording means by the medium to be transported, the regulating means It is characterized by swinging in response to restrictions from
The first aspect of the present invention is provided at a position facing the guide member that supports the medium to be transported and guides it to the downstream side or the upstream side, and lifts the lift of the medium to be transported from the guide member. The regulating device is disposed so as to block the transport path of the transported medium, and is swung up by the recording medium, and swings when the transport path is seen from the side, and the swinging member swings. A restriction means for restricting the movement operation, and the swinging member is free from being restricted by the restriction means when the swinging member is pushed up by the transported medium according to the transport direction of the transported medium. It is configured to be able to switch between a swingable first state and a second state that receives a restriction from the restricting means.
本態様によれば、被搬送媒体の案内部材からの浮き上がりを規制する浮き上がり規制装置は、被搬送媒体の搬送経路を側視して揺動する揺動部材と、当該揺動部材の揺動動作に規制を加える規制手段と、を備え、揺動部材が、被搬送媒体の搬送方向に応じて、被搬送媒体によって押し上げられる際にとる、前記規制手段からの規制を受けない自由揺動可能な第1の状態と、前記規制手段からの規制を受ける第2の状態とを切り換え可能に構成されているので、第1の状態では、被搬送媒体は揺動部材からの負荷を殆ど受けず、円滑な搬送が確保される。そして揺動部材が前記規制手段からの規制を受ける第2の状態では、被搬送媒体の案内部材からの浮き上がりが防止され、被搬送媒体が搬送経路の構成要素に引っ掛かりジャムとなることを防止できる。   According to this aspect, the lift control device that controls the lift of the transported medium from the guide member includes the swing member that swings when the transport path of the transported medium is viewed from the side, and the swing operation of the swing member. And a swinging member that can be freely swung without being restricted by the restricting means when the swinging member is pushed up by the transported medium in accordance with the transport direction of the transported medium. Since it is configured to be able to switch between the first state and the second state that receives the restriction from the restriction means, in the first state, the medium to be transported receives almost no load from the swinging member, Smooth conveyance is ensured. In the second state where the swinging member is regulated by the regulating means, it is possible to prevent the conveyed medium from being lifted from the guide member, and to prevent the conveyed medium from being caught by a component of the conveying path and causing a jam. .
本発明の第2の態様は、被搬送媒体を支持するとともに下流側或いは上流側へ案内する案内部材と対向する位置に設けられ、被搬送媒体の前記案内部材からの浮き上がりを規制する浮き上がり規制装置であって、被搬送媒体の搬送経路を遮る様に配置され、被記録媒体によって押し上げられることにより、前記搬送経路を側視して揺動する揺動部材と、前記揺動部材の揺動動作に規制を加える規制手段と、を備え、前記揺動部材が、上流側から下流側に向かう被搬送媒体によって押し上げられる際には、前記規制手段からの規制を受けない自由揺動可能な状態に置かれ、下流側から上流側に向かう被搬送媒体によって押し上げられる際には、前記規制手段からの規制を受ける規制状態に置かれる様構成されていることを特徴とする。   A second aspect of the present invention is a lift regulating device that is provided at a position facing a guide member that supports a transported medium and guides the transported medium to the downstream side or the upstream side, and restricts the lift of the transported medium from the guide member. The swing member is disposed so as to block the transport path of the transported medium and is swung up by the recording medium, and swings when viewed from the side of the transport path, and the swinging operation of the swing member And when the swinging member is pushed up by the medium to be transported from the upstream side to the downstream side, the swinging member is in a freely swingable state that is not subject to the restriction from the restricting unit. It is configured to be placed in a regulated state that is regulated by the regulating means when placed and pushed up by the transported medium from the downstream side toward the upstream side.
本態様によれば、被搬送媒体の案内部材からの浮き上がりを規制する浮き上がり規制装置は、被搬送媒体の搬送経路を側視して揺動する揺動部材と、当該揺動部材の揺動動作に規制を加える規制手段と、を備え、揺動部材が、上流側から下流側に向かう被搬送媒体によって押し上げられる際には、前記規制手段からの規制を受けない自由揺動可能な状態に置かれるので、被搬送媒体が上流側から下流側に向けて搬送される際には、当該被搬送媒体は揺動部材からの負荷を殆ど受けず、円滑な搬送が確保される。   According to this aspect, the lift control device that controls the lift of the transported medium from the guide member includes the swing member that swings when the transport path of the transported medium is viewed from the side, and the swing operation of the swing member. And when the swinging member is pushed up by the medium to be transported from the upstream side to the downstream side, the swinging member is placed in a freely swingable state without being restricted by the restriction unit. Therefore, when the transported medium is transported from the upstream side toward the downstream side, the transported medium is hardly subjected to a load from the swinging member, and smooth transport is ensured.
そして揺動部材が下流側から上流側に向かう被搬送媒体によって押し上げられる際には、当該揺動部材が前記規制手段からの規制を受ける規制状態に置かれる様構成されているので、被搬送媒体の案内部材からの浮き上がりが防止され、逆方向送り時の被搬送媒体が搬送経路の構成要素に引っ掛かりジャムとなることを防止できる。   When the swinging member is pushed up by the transported medium from the downstream side to the upstream side, the swinging member is configured to be placed in a regulated state that is regulated by the regulating means. Can be prevented from being lifted from the guide member and jammed due to the transported medium being caught by the components of the transport path during reverse feeding.
本発明の第3の態様は、上記第1のまたは第2の態様に記載の浮き上がり規制装置において、前記規制手段が、前記揺動部材に付勢力を付与する付勢手段を備え、前記揺動部材が下流側から上流側に向かう被搬送媒体によって押し上げられる際に、当該揺動部材に付勢力を付与する様構成されていることを特徴とする。   According to a third aspect of the present invention, in the lift restriction device according to the first or second aspect, the restriction means includes a biasing unit that applies a biasing force to the swinging member, When the member is pushed up by the medium to be transported from the downstream side to the upstream side, an urging force is applied to the swinging member.
本態様によれば、前記規制手段が、前記揺動部材に付勢力を付与する付勢手段を備え、前記揺動部材が下流側から上流側に向かう被搬送媒体によって押し上げられる際に、当該揺動部材に付勢力を付与する様構成されているので、被搬送媒体の案内部材からの浮き上がりを防止しつつ、揺動部材の揺動動作が厳格に拘束されないので、揺動部材の揺動角度を大きく確保でき、もって厚手の被搬送媒体に対応することができる。   According to this aspect, the regulating means includes the urging means for applying an urging force to the oscillating member, and when the oscillating member is pushed up by the transported medium from the downstream side toward the upstream side, Since the biasing force is applied to the moving member, the swinging motion of the swinging member is not strictly restrained while preventing the transported medium from being lifted from the guide member. Can be ensured greatly, and thus it can be used for thick transported media.
本発明の第4の態様は、上記第3の態様に記載の浮き上がり規制装置において、前記付勢手段が、前記揺動部材に設けられて当該揺動部材とともに揺動するねじりコイルばねによって構成され、前記揺動部材が下流側から上流側に向かう被搬送媒体によって押し上げられる際の当該揺動部材の揺動方向には、前記ねじりコイルばねの一端が当接するばね当接部が設けられ、前記ねじりコイルばねの一端が前記当接部に当接することにより、前記揺動部材に前記ねじりコイルばねの付勢力が付与されることを特徴とする。本態様によれば、ねじりコイルばねと、当該ねじりコイルばねの一端が当接するばね当接部によって、前記規制手段が構成されるので、構造簡単にして且つ低コストに前記規制部材を構成することができる。   According to a fourth aspect of the present invention, in the lifting restriction device according to the third aspect, the urging means is provided by a torsion coil spring provided on the swing member and swinging together with the swing member. A spring abutting portion with which one end of the torsion coil spring abuts is provided in the swinging direction of the swinging member when the swinging member is pushed up by the transported medium from the downstream side toward the upstream side, A biasing force of the torsion coil spring is applied to the swinging member when one end of the torsion coil spring abuts on the abutting portion. According to this aspect, since the restriction means is configured by the torsion coil spring and the spring contact portion with which one end of the torsion coil spring contacts, the structure is simplified and the restriction member is configured at low cost. Can do.
本発明の第5の態様は、上記第1のまたは第2の態様に記載の浮き上がり規制装置において、前記規制手段が、前記揺動部材に設けられた当接部と、前記揺動部材の所定の揺動角度において前記当接部が当接することにより、前記揺動部材の揺動動作を止める被当接部と、を備えて構成されていることを特徴とする。   According to a fifth aspect of the present invention, in the lift restriction device according to the first or second aspect, the restriction means includes a contact portion provided on the swing member and a predetermined portion of the swing member. And a contacted portion that stops the swinging motion of the swinging member when the contacted portion comes into contact with each other at the swinging angle.
本態様によれば、前記規制手段が、前記揺動部材に設けられた当接部と、前記揺動部材の所定の揺動角度において前記当接部が当接することにより、前記揺動部材の揺動動作を止める被当接部と、を備えて構成されているので、前記揺動部材の揺動動作が厳格に規制され、被搬送媒体の浮き上がりをより小さく抑えることができる。   According to this aspect, the restricting means is brought into contact with the contact portion provided on the swing member and the contact portion at a predetermined swing angle of the swing member. And a contacted portion that stops the swinging operation. Therefore, the swinging operation of the swinging member is strictly regulated, and the lift of the transported medium can be further reduced.
本発明の第6の態様は、被搬送媒体に記録を行う記録手段と、前記記録手段の上流側に設けられ、被搬送媒体を下流側へ搬送する搬送手段と、前記搬送手段の上流側に設けられ、被搬送媒体を支持するとともに下流側或いは上流側へ案内する案内部材と、を備えた記録装置であって、前記案内部材と対向する位置に、上記第1から第5の態様のいずれかに記載の被搬送媒体の浮き上がり規制装置を備えていることを特徴とする。本態様によれば、記録装置において、上記第1から第5の態様のいずれかと同様な作用効果を得ることができる。   According to a sixth aspect of the present invention, there is provided a recording means for recording on a transported medium, a transport means provided on the upstream side of the recording means, for transporting the transported medium to the downstream side, and an upstream side of the transport means. And a guide member that supports the medium to be transported and guides it to the downstream side or the upstream side, wherein the recording apparatus includes any one of the first to fifth aspects at a position facing the guide member. A lift control device for a transported medium as described above is provided. According to this aspect, in the recording apparatus, it is possible to obtain the same function and effect as any one of the first to fifth aspects.
本発明の第7の態様は、被搬送媒体に記録を行う記録手段と、前記記録手段の上流側に設けられ、被搬送媒体を下流側へ搬送する搬送手段と、前記搬送手段の上流側に設けられ、被搬送媒体を支持するとともに下流側或いは上流側へ案内する案内部材と、前記案内部材の上流側に設けられ、被搬送媒体を下流側へ給送する給送手段と、前記記録手段の下流側に設けられ、被搬送媒体を排出する排出手段と、を備えるとともに、プレート形状を成す被搬送媒体を前記排出手段の下流側から上流側に向かって給送可能に構成された記録装置であって、前記案内部材によって形成される搬送経路には、前記給送手段から給送される被記録媒体の給送基準位置に、被搬送媒体の通過を検出するセンサが設けられ、前記プレート形状を成す被搬送媒体は、前記センサを避ける様に前記給送基準位置から所定の距離を置いた位置から給送される様構成されており、前記案内部材と対向して、上記第3のまたは第4の態様に記載の前記被搬送媒体の浮き上がり規制装置が、前記プレート形状を成す被搬送媒体と係合可能な位置に設けられ、前記案内部材と対向して、上記第5の態様に記載の前記被搬送媒体の浮き上がり規制装置が、前記給送手段から給送される被記録媒体と係合可能な位置であって前記プレート形状を成す被搬送媒体が通過する領域を避けた前記給送基準位置側に設けられていることを特徴とする。   According to a seventh aspect of the present invention, there is provided a recording means for recording on a transported medium, a transport means provided on the upstream side of the recording means, for transporting the transported medium to the downstream side, and an upstream side of the transport means. A guide member that supports the medium to be conveyed and guides the medium to the downstream side or the upstream side; a feeding unit that is provided on the upstream side of the guide member and that feeds the medium to be conveyed to the downstream side; and the recording unit And a discharge unit that discharges the medium to be transported, and is configured to be capable of feeding the plate-shaped transport medium from the downstream side to the upstream side of the discharge unit. The transport path formed by the guide member is provided with a sensor for detecting the passage of the transported medium at a feeding reference position of the recording medium fed from the feeding means, and the plate The shape of the medium to be transported is According to the third or fourth aspect, the feed is configured to be fed from a position at a predetermined distance from the feed reference position so as to avoid the sensor, facing the guide member. The lift of the transported medium according to the fifth aspect is provided at a position where the lift control device of the transported medium can be engaged with the transported medium having the plate shape, and faces the guide member. A regulating device is provided on the feeding reference position side that is a position that can be engaged with the recording medium fed from the feeding means and that avoids a region through which the transported medium having the plate shape passes. It is characterized by being.
本態様によれば、プレート形状を成す被搬送媒体と係合する位置には、付勢手段によって揺動動作が規制される揺動部材を備えた上記第3のまたは第4の態様に記載の浮き上がり規制装置が設けられているので、揺動部材の揺動角度を大きく確保でき、薄手の被搬送媒体と、厚みのあるプレート形状を成す被搬送媒体の双方の浮き上がりを防止できる。   According to this aspect, in the third or fourth aspect described above, the rocking member whose rocking motion is restricted by the biasing means is provided at a position where the medium to be conveyed is engaged with the plate. Since the lifting restricting device is provided, it is possible to secure a large swing angle of the swing member, and to prevent both the thin transport medium and the transport medium having a thick plate shape from being lifted.
次に、給送装置から給送される被搬送媒体の浮き上がりを効果的に防止する為には、被搬送媒体の両端部分の浮き上がりを規制することが望ましいが、被搬送媒体の給送基準位置には被搬送媒体の通過を検出するセンサが設けられているので、当該センサを避ける様に、被搬送媒体の給送基準位置側の端部からやや内側に浮き上がり規制装置を設ける必要が生じる。   Next, in order to effectively prevent the lift of the transported medium fed from the feeding device, it is desirable to regulate the lift of both ends of the transported medium, but the transport reference position of the transported medium Since a sensor for detecting the passage of the medium to be transported is provided, it is necessary to provide a restricting device that floats slightly inward from the end of the transport medium on the side of the feed reference position so as to avoid the sensor.
そこで、この様な位置に、上記第5の態様に記載した被搬送媒体の浮き上がり規制装置を設けた。従って、揺動部材の揺動可能角度を小さく抑えることができ、即ち被搬送媒体の浮き上がりをより小さく抑えることで、被搬送媒体端部からやや内側で当該被搬送媒体の浮き上がりを規制しても、被搬送媒体端部の浮き上がりを小さく抑えることができる。しかも、プレート形状を成す被搬送媒体が通過する領域を避ける位置に配置される為、この様な厚みのある被搬送媒体の搬送を阻害することが無い。   In view of this, the apparatus for restricting the lift of the medium to be transported described in the fifth aspect is provided at such a position. Therefore, the swingable angle of the swinging member can be suppressed to a small value, that is, by suppressing the lift of the transported medium to a smaller extent, even if the lift of the transported medium is restricted slightly inside the transported medium end. In addition, the lift of the end of the medium to be transported can be suppressed small. In addition, since the plate-shaped transport medium is disposed at a position that avoids the region through which the transport medium passes, the transport of the transport medium having such a thickness is not hindered.
本発明の第8の態様は、被搬送媒体に液体噴射を行う液体噴射手段と、前記液体噴射手段の上流側に設けられ、被搬送媒体を下流側へ搬送する搬送手段と、前記搬送手段の上流側に設けられ、被搬送媒体を支持するとともに下流側或いは上流側へ案内する案内部材と、を備えた液体噴射装置であって、前記案内部材と対向する位置に、上記第1から第5の態様のいずれかに記載の被搬送媒体の浮き上がり規制装置を備えていることを特徴とする。   According to an eighth aspect of the present invention, there is provided a liquid ejecting unit that ejects a liquid onto a transported medium, a transport unit that is provided upstream of the liquid ejecting unit and transports the transported medium downstream, A liquid ejecting apparatus that is provided on the upstream side and includes a guide member that supports the medium to be transported and guides it to the downstream side or the upstream side. A lift control device for a medium to be transported according to any one of the above aspects is provided.
以下、図1乃至図10を参照しつつ本発明の一実施形態について説明する。図1は本発明に係る「記録装置」或いは「液体噴射装置」の一実施形態であるインクジェットプリンタ(以下「プリンタ」と言う)1の側断面概略図、図2は本発明に係る浮き上がり規制装置30の斜視図、図3(A)乃至(C)は同側面図、図4乃至図7は浮き上がり規制装置30を中心とした搬送経路の側面図、図8はトレイTの搬送位置と規制部材31A〜31Dの位置関係を示す模式図、図9は他の実施形態に係る浮き上がり規制装置30’の側面図、図10は同斜視図である。   Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic side sectional view of an ink jet printer (hereinafter referred to as “printer”) 1 which is an embodiment of a “recording apparatus” or “liquid ejecting apparatus” according to the present invention, and FIG. 2 is a lift regulating apparatus according to the present invention. 3A to 3C are side views, FIGS. 4 to 7 are side views of a conveyance path centering on the lifting restriction device 30, and FIG. 8 is a conveyance position of the tray T and a regulating member. FIG. 9 is a side view of a lifting restricting device 30 ′ according to another embodiment, and FIG. 10 is a perspective view of the positional relationship of 31A to 31D.
以下、図1を参照しつつプリンタ1の全体構成について概説する。プリンタ1は、装置後部にリア給送装置2を、装置底部にフロント給送装置3をそれぞれ備え、これら2つの給送装置から、搬送手段5へと「被搬送媒体」としての記録用紙(以下「用紙P」と言う)を給送する。用紙Pは搬送手段5によって記録手段4(記録ヘッド48)へと搬送され、記録が実行された後、排出手段6によって図示しないスタッカへと排出される。   The overall configuration of the printer 1 will be outlined below with reference to FIG. The printer 1 includes a rear feeding device 2 at the rear of the device and a front feeding device 3 at the bottom of the device. The recording paper (hereinafter referred to as “conveyed medium”) from these two feeding devices to the conveying means 5 (Referred to as “paper P”). The paper P is transported by the transport means 5 to the recording means 4 (recording head 48). After recording is performed, the paper P is discharged by a discharge means 6 to a stacker (not shown).
尚、給送装置2の背面側には図示しない用紙反転装置が設けられており、記録の行われた用紙Pをスタッカへ排出せずに、上流側(図1の右側)に向けて逆方向送りし、上記用紙反転装置に入れることにより、記録の行われた面(おもて面)を下にして再度搬送手段5へ給送できる様になっている(両面記録機能)。また、光ディスクをセットしたトレイT(図8)を下流側から上流側に向けて給送可能に構成されており、光ディスクのラベル面に直接記録を実行可能になっている。   A paper reversing device (not shown) is provided on the back side of the feeding device 2 so that the recorded paper P is not discharged to the stacker, but in the reverse direction toward the upstream side (right side in FIG. 1). By feeding and inserting into the paper reversing device, the recording surface (front surface) can be faced down and fed to the conveying means 5 again (double-sided recording function). Further, the tray T (FIG. 8) on which the optical disk is set can be fed from the downstream side toward the upstream side, and recording can be directly performed on the label surface of the optical disk.
以下、用紙搬送経路上の構成要素について更に詳説する。
リア給送装置2は、ホッパ12と、給送ローラ11と、リタードローラ13と、戻しレバー14と、更に図示しないその他の構成要素を、装置の基体を構成するフレーム10に備えている。
ホッパ12は板状体から成り、上部の揺動支点12aを中心に揺動可能に設けられ、揺動することにより、ホッパ12上に傾斜姿勢に支持された用紙Pを給送ローラ11に圧接させる圧接姿勢と、給送ローラ11から離間させる離間姿勢と、を切り換える。
Hereinafter, the components on the paper transport path will be described in more detail.
The rear feeding device 2 includes a hopper 12, a feeding roller 11, a retard roller 13, a return lever 14, and other constituent elements (not shown) in a frame 10 constituting the base of the device.
The hopper 12 is formed of a plate-like body, and is provided so as to be able to swing around an upper swing fulcrum 12a. By swinging, the paper P supported in an inclined posture on the hopper 12 is pressed against the feeding roller 11. The pressure contact posture to be switched and the separation posture to be separated from the feeding roller 11 are switched.
給送ローラ11は円形状を成し、回転することにより、圧接した最上位の用紙Pを下流側へ給送する。リタードローラ13は外周が弾性材によって形成されるとともに給送ローラ11と圧接可能に設けられ、且つ、トルクリミッタ機構により、所定の回転抵抗が与えられた状態に設けられていて、給送ロ−ラ11との間で用紙Pを挟圧することにより、用紙の重送を防止する。戻しレバー14は、給送ロ−ラ11とリタードローラ13との間に滞留する用紙(重送されようとした次位以降の用紙)の先端をホッパ12上に戻す。   The feeding roller 11 has a circular shape and rotates to feed the uppermost sheet P in pressure contact to the downstream side. The retard roller 13 has an outer periphery formed of an elastic material and is provided so as to be able to press contact with the feed roller 11 and is provided with a predetermined rotational resistance by a torque limiter mechanism. The paper P is clamped between the paper 11 and the paper 11 to prevent double feeding of the paper. The return lever 14 returns the leading edge of the paper staying between the feed roller 11 and the retard roller 13 (the next and subsequent sheets about to be multi-fed) onto the hopper 12.
一方、プリンタ1の底部に設けられ、用紙を装置前方からセットする様構成されたフロント給送装置3は、給紙カセット25と、ピックアップローラ26と、給送ローラ28と、分離ローラ29と、アシストローラ35と、経路切換部材36と、を備えている。
図示しないモータによって回転駆動されるピックアップローラ26は、装置前方側から装着及び取り外し可能な給紙カセット25にセットされた用紙Pの最上位のものと接して回転することにより、当該最上位の用紙Pを給紙カセット25から繰り出す。給送ローラ28は図示しないモータによって回転駆動され、給紙カセット25から繰り出された最上位の用紙Pを湾曲反転させて、「案内部材」としての紙案内後44を経て搬送駆動ローラ41へと給送する。
On the other hand, the front feeding device 3 provided at the bottom of the printer 1 and configured to set paper from the front of the device includes a paper feeding cassette 25, a pickup roller 26, a feeding roller 28, a separation roller 29, An assist roller 35 and a path switching member 36 are provided.
The pick-up roller 26 that is rotationally driven by a motor (not shown) rotates in contact with the uppermost one of the paper P set in the paper feed cassette 25 that can be mounted and removed from the front side of the apparatus. P is fed out of the paper cassette 25. The feeding roller 28 is rotationally driven by a motor (not shown), reverses the uppermost sheet P fed out from the sheet feeding cassette 25, and passes through a paper guide 44 as a "guide member" to the transport driving roller 41. To feed.
給送ローラ28の外周面と対向する位置には、給送ローラ28に対して進退可能となるよう分離ローラ29が設けられており、給紙カセット25から最上位の用紙Pが繰り出される際には、給送ローラ28に圧接してニップ点を形成することにより、給送されるべき最上位の用紙Pに連られて給紙カセット25から繰り出された次位以降の用紙P先端を当該ニップ点近傍に留める。アシストローラ30は、給送ローラ28の外周面と接する様設けられており、用紙Pを給送ローラ28との間でニップすることにより、給送ローラ28の回転に伴う用紙Pの給送をアシストする。   A separation roller 29 is provided at a position facing the outer peripheral surface of the feeding roller 28 so as to be able to advance and retreat with respect to the feeding roller 28, and when the uppermost sheet P is fed out from the sheet feeding cassette 25. Is formed by pressing the feeding roller 28 to form a nip point so that the leading edge of the next and subsequent sheets P fed from the sheet feeding cassette 25 connected to the uppermost sheet P to be fed is moved to the nip. Stay near the point. The assist roller 30 is provided so as to be in contact with the outer peripheral surface of the feeding roller 28, and the paper P is fed with the rotation of the feeding roller 28 by nipping the paper P with the feeding roller 28. Assist.
経路切換部材36は、揺動軸36a(図4)を中心に揺動可能に設けられ、通常は、図1に示す様に給紙カセット25から給送される用紙Pを案内する位置に位置決めされる。一方、リア給送装置2の背面側に設けられた図示しない用紙反転装置に、おもて面に記録済みの用紙Pを送り込む際には、図6に示す様に位置決めされて紙案内後44とフレーム10との間の搬送経路を開放する様に位置決めされる。また、光ディスクをセットしたトレイT(図8)を下流側から上流側に向けて給送する際にも、同様に紙案内後44とフレーム10との間の搬送経路を開放する様に位置決めされる。   The path switching member 36 is provided so as to be swingable about a swing shaft 36a (FIG. 4), and is normally positioned at a position for guiding the paper P fed from the paper feed cassette 25 as shown in FIG. Is done. On the other hand, when the paper P recorded on the front surface is fed into a paper reversing device (not shown) provided on the rear side of the rear feeding device 2, the paper is positioned as shown in FIG. And the frame 10 are positioned so as to open the conveyance path. Similarly, when the tray T (FIG. 8) on which the optical disk is set is fed from the downstream side toward the upstream side, it is similarly positioned so as to open the conveyance path between the paper guide 44 and the frame 10. The
次に、リア給送装置2及びフロント給送装置3の下流側には、給送される用紙Pを搬送手段5(下流側)へと案内し、或いは用紙Pの逆方向送り時やトレイTの給送時にはこれら用紙P或いはトレイTを上流側に案内する紙案内後44と、搬送従動ローラ42を支持する紙案内上ユニット9と、が設けられている。尚、符号40は、リア給送装置2から給送される用紙Pの給送姿勢を形成する自由回転可能なガイドローラを示している。   Next, on the downstream side of the rear feeding device 2 and the front feeding device 3, the paper P to be fed is guided to the transport means 5 (downstream side), or when the paper P is fed in the reverse direction or the tray T The paper guide post 44 for guiding the paper P or the tray T to the upstream side and the paper guide upper unit 9 for supporting the transport driven roller 42 are provided. Reference numeral 40 denotes a freely rotatable guide roller that forms a feeding posture of the paper P fed from the rear feeding device 2.
紙案内上ユニット9は、一つの紙案内上43と、この紙案内上43に支持される複数(本実施形態では、3個)の搬送従動ローラ42と、ガイドローラ40と、サブフレーム8と、を備えて構成され、これらがアッセンブリされて紙案内上ユニット9を構成し、メインフレーム7に固定される。紙案内上43は、用紙搬送経路を側視して揺動可能であるとともに、図示しない付勢手段によって搬送従動ローラ42が搬送駆動ローラ41に圧接する方向に付勢される。尚、後述する本発明に係る浮き上がり規制装置30、30’は、上記紙案内上ユニット9に設けられる。   The paper guide upper unit 9 includes a single paper guide 43, a plurality of (three in this embodiment) transport driven rollers 42 supported by the paper guide 43, a guide roller 40, and a subframe 8. These are assembled to form a paper guide upper unit 9 and fixed to the main frame 7. The upper paper guide 43 can swing when viewed from the side of the paper conveyance path, and is urged in a direction in which the conveyance driven roller 42 is pressed against the conveyance driving roller 41 by an urging means (not shown). In addition, the lifting restricting devices 30 and 30 ′ according to the present invention, which will be described later, are provided in the paper guiding upper unit 9.
搬送手段5は、図示しないモータによって回転駆動される搬送駆動ローラ41と、該搬送駆動ローラ41に上方から弾接して従動回転する搬送従動ローラ42とを備えて構成されている。搬送駆動ローラ41は用紙幅方向に延びる金属軸の外周面に耐摩耗性粒子がほぼ均一に分散されて成る付着層を備えて成され、搬送従動ローラ42は外周面がポリアセタール樹脂等の低摩擦材料によって成され、搬送駆動ローラ41の軸線方向に複数配設されている。   The transport means 5 includes a transport drive roller 41 that is rotationally driven by a motor (not shown), and a transport driven roller 42 that is driven to rotate by elastic contact with the transport drive roller 41 from above. The conveyance drive roller 41 is provided with an adhesion layer in which wear-resistant particles are dispersed almost uniformly on the outer peripheral surface of a metal shaft extending in the paper width direction, and the conveyance driven roller 42 has a low friction such as polyacetal resin. A plurality of materials are provided in the axial direction of the transport driving roller 41.
搬送手段5に到達した用紙Pは、搬送駆動ローラ41と搬送従動ローラ42とによってニップされた状態で搬送駆動ローラ41が回転することにより、下流側の記録手段4(記録ヘッド48)の側へと搬送される。尚、本実施形態では、用紙Pへの記録実行時に、搬送駆動ローラ41と搬送従動ローラ42とによって用紙Pが搬送される方向(図1の左方向)を「下流側」とし、その逆方向(図1の右方向)を「上流側」とする。   The sheet P that has reached the conveying unit 5 rotates toward the recording unit 4 (recording head 48) on the downstream side when the conveying drive roller 41 rotates while being nipped by the conveyance driving roller 41 and the conveyance driven roller 42. It is conveyed. In this embodiment, when recording on the paper P is performed, the direction in which the paper P is transported by the transport driving roller 41 and the transport driven roller 42 (the left direction in FIG. 1) is “downstream”, and the opposite direction. (Right direction in FIG. 1) is defined as “upstream side”.
記録ヘッド48はキャリッジ46の底部に設けられ、当該キャリッジ46は、図示しない駆動モータによって主走査方向に往復動する様に駆動される。また、キャリッジ46は、複数の色毎に独立したインクカートリッジ(図示せず)を搭載し、このインクカートリッジから記録ヘッド48へとインクが供給される。   The recording head 48 is provided at the bottom of the carriage 46, and the carriage 46 is driven to reciprocate in the main scanning direction by a drive motor (not shown). The carriage 46 is equipped with independent ink cartridges (not shown) for a plurality of colors, and ink is supplied from the ink cartridges to the recording head 48.
記録ヘッド48と対向する位置には、用紙幅方向に延びる形状を成し、用紙を下から支持するとともに下流側へ案内する紙案内前45が設けられ、当該紙案内前45によって、用紙Pと記録ヘッド48との間の間隔が規定される。
記録手段4の下流側には、記録の行われた用紙Pを排出する排出手段6が設けられている。排出手段6は図示しないモータによって回転駆動される排出駆動ローラ55と、当該排出駆動ローラ55に接して従動回転する排出従動ローラ56とを備えて構成され、記録手段4によって記録の行われた用紙Pは、排出駆動ローラ55と排出従動ローラ56とによってニップされた状態で排出駆動ローラ55が回転駆動されることにより、装置前方側に設けられた図示しないスタッカへと排出される。
At a position facing the recording head 48, there is provided a paper guide front 45 that has a shape extending in the paper width direction and supports the paper from below and guides it to the downstream side. A distance from the recording head 48 is defined.
On the downstream side of the recording unit 4, a discharge unit 6 that discharges the recorded paper P is provided. The discharge means 6 includes a discharge drive roller 55 that is rotationally driven by a motor (not shown), and a discharge driven roller 56 that is driven to rotate in contact with the discharge drive roller 55, and is a sheet on which recording is performed by the recording means 4. P is discharged to a stacker (not shown) provided on the front side of the apparatus when the discharge drive roller 55 is rotationally driven while being nipped by the discharge drive roller 55 and the discharge driven roller 56.
尚、用紙Pには、搬送手段5と排出手段6との間で下に凸となる様な湾曲姿勢が形成され、これによって用紙Pの紙案内前45からの浮き上がりが防止され、用紙Pの記録面と記録ヘッド48との距離が一定に保たれる様になっている。その為、搬送駆動ローラ41及び搬送従動ローラ42の両ローラの軸芯を通る直線が、用紙搬送方向に対して傾き角を有する様に、搬送従動ローラ42の軸芯位置がやや下流側に設定されている。また、排紙手段6の近傍では、補助ローラ57により、紙案内前45からの浮き上がりが防止される。   The sheet P is formed with a curved posture that protrudes downward between the transport unit 5 and the discharge unit 6, thereby preventing the sheet P from being lifted from the front of the sheet guide 45. The distance between the recording surface and the recording head 48 is kept constant. Therefore, the axis position of the conveyance driven roller 42 is set slightly downstream so that the straight line passing through the axis of both the conveyance drive roller 41 and the conveyance driven roller 42 has an inclination angle with respect to the paper conveyance direction. Has been. Further, in the vicinity of the paper discharge means 6, the auxiliary roller 57 prevents the paper from being lifted from the front 45.
また、プリンタ1においては上記の通り光ディスク(図示せず)をセット可能なトレイT(図8)を、搬送手段5によって搬送可能に構成されていて、記録ヘッド48によってトレイTにセットされた光ディスクのラベル面へ直接記録を実行可能となっている。トレイTは、プリンタ1前方側(下流側)から後方側(上流側)に向けて差し込まれ(給送され)、そして搬送手段5によって副走査送りされる。   Further, in the printer 1, the tray T (FIG. 8) on which an optical disk (not shown) can be set as described above can be transported by the transport means 5, and the optical disk set on the tray T by the recording head 48. It is possible to perform recording directly on the label surface. The tray T is inserted (feeded) from the front side (downstream side) of the printer 1 toward the rear side (upstream side), and is sub-scanned by the transport unit 5.
以上がプリンタ1の概要であり、以下図2乃至図10を参照しながら、用紙PおよびトレイTの浮き上がりを規制する浮き上がり規制装置について説明する。
紙案内後44と対向して配置される紙案内上43には、浮き上がり規制装置30及び30’が設けられる。尚、本実施形態においては浮き上がり規制装置30’は最も用紙給送基準位置側に1つ設けられ、浮き上がり規制装置30は他の場所に複数設けられるが、以下では先ず浮き上がり規制装置30について説明する。
The outline of the printer 1 has been described above, and the floating regulating device that regulates the floating of the paper P and the tray T will be described below with reference to FIGS.
Lift control devices 30 and 30 ′ are provided on the paper guide 43 disposed opposite to the paper guide 44. In the present embodiment, one lift regulating device 30 ′ is provided closest to the paper feed reference position, and a plurality of lift regulating devices 30 are provided at other locations. Hereinafter, the lift regulating device 30 will be described first. .
この浮き上がり規制装置30は、図2、図3に示す様に揺動部材31と、「規制手段」および「付勢手段」を構成するねじりコイルばね32及び当接部43aを備えて構成されている。揺動部材31は、レバー形状を成す本体部に揺動軸31aが一体的に形成されており、その揺動軸31aが紙案内上43に軸支され、これにより搬送経路を側視して揺動可能に設けられる。また、用紙P或いはトレイTと係合しない非係合状態では、図1或いは図3(A)に示す様に搬送経路を遮る姿勢をとる。   As shown in FIGS. 2 and 3, the lifting restricting device 30 includes a swing member 31, a torsion coil spring 32 and a contact portion 43 a that constitute “regulating means” and “biasing means”. Yes. The swing member 31 is integrally formed with a swing shaft 31a in a lever-shaped main body, and the swing shaft 31a is pivotally supported on the paper guide 43 so that the transport path is seen from the side. It is provided so as to be able to swing. Further, in the non-engaged state where the paper P or the tray T is not engaged, the posture of blocking the transport path is taken as shown in FIG. 1 or FIG.
揺動軸31aは、ねじりコイルばね32のコイル部を挿通し、ねじりコイルばね32の一端32aは、揺動部材31の先端に向かって延びるとともに、揺動部材31が用紙P或いはトレイTと係合しない非係合状態においてはフリー状態に置かれる。他端32bは、揺動部材31の先端に向かって延びるとともに掛止部31d、31eによって拘束状態に置かれる。従って、ねじりコイルばね32は、揺動部材31とともに揺動動作を行う。   The swing shaft 31a is inserted through the coil portion of the torsion coil spring 32. One end 32a of the torsion coil spring 32 extends toward the tip of the swing member 31, and the swing member 31 is engaged with the paper P or the tray T. In the non-engaged state where they do not match, they are placed in a free state. The other end 32b extends toward the tip of the swing member 31 and is placed in a restrained state by the latching portions 31d and 31e. Accordingly, the torsion coil spring 32 performs a swing operation together with the swing member 31.
揺動軸31aの外周面と対向する位置には、当接部43aが紙案内上43に一体的に設けられており、ねじりコイルばね32の一端32aと係合可能となっている。この当接部43aは、揺動部材31が、図3の反時計回り方向に所定角度揺動したときに図3(C)に示す様にねじりコイルばね32と係合し、従ってこの様な係合状態となってから揺動部材31が更に揺動すると、当該揺動部材31にねじりコイルばね32の付勢力が作用する。即ち、揺動部材31の揺動動作に規制が加えられる(揺動部材31の第2の状態)。   A contact portion 43 a is integrally provided on the paper guide 43 at a position facing the outer peripheral surface of the swing shaft 31 a and can be engaged with one end 32 a of the torsion coil spring 32. The contact portion 43a engages with the torsion coil spring 32 as shown in FIG. 3C when the swing member 31 swings a predetermined angle in the counterclockwise direction of FIG. When the swing member 31 further swings after being in the engaged state, the biasing force of the torsion coil spring 32 acts on the swing member 31. That is, a restriction is applied to the swing operation of the swing member 31 (second state of the swing member 31).
一方、揺動部材31が図3の時計回り方向に揺動する際は、図3(B)に示す様にねじりコイルばね32の一端32aと当接部43aとは係合しないので、揺動部材31は、ねじりコイルばね32からの規制を受けない自由揺動可能な状態に置かれる(揺動部材31の第1の状態)。   On the other hand, when the swing member 31 swings in the clockwise direction of FIG. 3, the one end 32a of the torsion coil spring 32 and the contact portion 43a do not engage with each other as shown in FIG. The member 31 is placed in a freely swingable state that is not restricted by the torsion coil spring 32 (first state of the swing member 31).
従って図4に示す様にリア給送装置2から用紙Pが給送されると、この用紙Pにより揺動部材31が下流側方向に押し退けられるが、このときねじりコイルばね32の付勢力は揺動部材31に作用しないので、用紙Pには揺動部材31から殆ど負荷を受けることなく、円滑に下流側に給送される。   Therefore, when the paper P is fed from the rear feeding device 2 as shown in FIG. 4, the swinging member 31 is pushed away by the paper P in the downstream direction. At this time, the urging force of the torsion coil spring 32 fluctuates. Since it does not act on the moving member 31, the sheet P is smoothly fed downstream without receiving a load from the swinging member 31.
また、図5に示す様にフロント給送装置3から用紙Pが給送されるときも、この用紙Pにより揺動部材31が下流側方向に押し退けられるが、このときもねじりコイルばね32の付勢力は揺動部材31に作用せず、用紙Pは揺動部材31から殆ど負荷を受けることなく円滑に下流側に給送される。尚、フロント給送装置3から用紙Pが給送される際、この用紙Pはリア給送装置2から給送される用紙Pよりも紙案内後44に近接した位置を通過するので、揺動部材31の揺動角度は小さくなる。   Further, as shown in FIG. 5, when the paper P is fed from the front feeding device 3, the swing member 31 is pushed away by the paper P in the downstream direction. At this time, the torsion coil spring 32 is attached. The force does not act on the swing member 31, and the paper P is smoothly fed downstream without receiving a load from the swing member 31. When the paper P is fed from the front feeding device 3, the paper P passes through a position closer to the post-paper guide 44 than the paper P fed from the rear feeding device 2. The swing angle of the member 31 becomes small.
次に、両面印刷の為におもて面に記録の行われた用紙Pが上流側に向けて逆方向送りされるときは、図6に示す様にこの用紙Pにより揺動部材31が上流側方向に押し退けられるが、このときはねじりコイルばね32の付勢力が揺動部材31に作用する為、用紙Pは紙案内後44からの浮き上がりが規制され、逆方向送り時の用紙先端がフレーム10に引っ掛かることなく、リア給送装置2の背面側に設けられた図示しない用紙反転装置へ円滑に導かれる。   Next, when the paper P having been recorded on the front surface is fed in the reverse direction toward the upstream side for duplex printing, the swing member 31 is moved upstream by this paper P as shown in FIG. At this time, the urging force of the torsion coil spring 32 acts on the swing member 31. Therefore, the paper P is prevented from being lifted after the paper guide 44, and the front end of the paper when the paper is fed in the reverse direction is the frame. 10, the paper is smoothly guided to a sheet reversing device (not shown) provided on the rear side of the rear feeding device 2 without being caught by the rear feeding device 2.
特に、この様に用紙Pを上流側に向けて逆方向送りする場合、搬送従動ローラ42の搬送駆動ローラ41に対する接触位置がやや下流側に設定されていることから、用紙Pは両ローラにより上方向に向かって搬送されることとなり(符号Q及び破線で示す様な方向)、このときの用紙先端がリア給送装置2の基体を構成するフレーム10に引っ掛かり易くなっている。しかし、揺動部材31によって紙案内後44からの浮き上がりが防止される為、その様な問題が生じることが無い。   In particular, when the paper P is fed in the reverse direction toward the upstream side in this way, the contact position of the transport driven roller 42 with respect to the transport driving roller 41 is set slightly downstream, so that the paper P is lifted by both rollers. In this case, the leading edge of the sheet is easily caught by the frame 10 constituting the base of the rear feeding device 2. However, since the swinging member 31 prevents the paper from being lifted after the paper guide 44, such a problem does not occur.
次に、光ディスクのセットされたトレイTが下流側から上流側に向けて給送されるときは、図7に示す様にトレイTによって揺動部材31が上流側方向に押し退けられるが、このときはねじりコイルばね32の付勢力が揺動部材31に作用する為、トレイTは紙案内後44からの浮き上がりが規制され、トレイT先端がフレーム10に引っ掛かることなく紙案内後44とフレーム10との間に形成されたストレート経路に導かれる。   Next, when the tray T on which the optical disk is set is fed from the downstream side toward the upstream side, the swing member 31 is pushed away by the tray T in the upstream direction as shown in FIG. Since the biasing force of the torsion coil spring 32 acts on the swing member 31, the tray T is restricted from being lifted after the paper guidance 44, and the leading edge of the tray T is not caught by the frame 10, and after the paper guidance 44 and the frame 10. To the straight path formed between the two.
尚、この様に揺動部材31が上流側に押し退けられた状態で、トレイTが記録動作実行の為に下流側に搬送される際、トレイT上面の凹凸等が揺動部材31先端に引っ掛かり、トレイTを下流側へ搬送不可能となる虞がある。この為、トレイTによって揺動部材31が上流側に押し退けられた状態において、揺動部材31のトレイTとの接触面には、図7及び図3(C)に示す様に案内斜面31bが形成される様になっており、これによりトレイTの円滑な搬送が確保されている。   When the tray T is transported to the downstream side for execution of the recording operation with the swinging member 31 pushed away in this way, the unevenness on the upper surface of the tray T is caught on the tip of the swinging member 31. There is a possibility that the tray T cannot be conveyed downstream. Therefore, in the state where the swing member 31 is pushed away by the tray T, the guide slope 31b is formed on the contact surface of the swing member 31 with the tray T as shown in FIGS. 7 and 3C. Thus, smooth conveyance of the tray T is ensured.
以上により、揺動部材31が、上流側から下流側に向かう被搬送媒体(用紙P)によって押し上げられる際には、規制手段(付勢手段)を構成するねじりコイルばね32からの規制を受けない自由揺動可能な状態に置かれ、揺動部材31は自重によって軽く用紙Pに上から接するだけの状態となる為、用紙Pは揺動部材31からの負荷を殆ど受けることなく、円滑な搬送が約束される。   As described above, when the swing member 31 is pushed up by the transported medium (paper P) from the upstream side to the downstream side, the swing member 31 is not restricted by the torsion coil spring 32 constituting the restriction means (biasing means). Since the swing member 31 is placed in a freely swingable state and the swing member 31 is only in light contact with the paper P from above due to its own weight, the paper P is smoothly transported without receiving a load from the swing member 31. Is promised.
そして揺動部材31が下流側から上流側に向かう被搬送媒体(両面印刷時の為に逆方向送りされる用紙P、或いは給送されるトレイT)によって押し上げられる際には、当該揺動部材31がねじりコイルばね32からの規制を受ける規制状態に置かれ、用紙P或いはトレイTの紙案内後44からの浮き上がりが規制され、フレーム10に当接してジャムとなる不具合が防止される。この様に、浮き上がり規制装置30により、種々の搬送経路を成立させることができる。   When the swinging member 31 is pushed up by the transported medium (the paper P fed in the reverse direction for double-sided printing or the fed tray T) from the downstream side to the upstream side, the swinging member 31 31 is placed in a restricted state that is restricted by the torsion coil spring 32, and the lifting of the paper P or the tray T from the post-paper guide 44 is restricted, so that the trouble of jamming due to contact with the frame 10 is prevented. In this way, the lifting restriction device 30 can establish various conveyance paths.
尚、以上説明した実施形態では、用紙Pが上流側から下流側に向けて進む際に、揺動部材31がねじりコイルばね32からの規制を受けない第1の状態に置かれ、下流側から上流側に向けて進む際に、揺動部材31がねじりコイルばね32からの規制を受ける第2の状態に置かれる様に構成されているが、これに限られず、用紙Pの搬送方向に応じて、揺動部材31の規制を自由に設定することが可能である。即ち、用紙Pが引っ掛かり易くジャムとなり易い搬送方向に用紙Pが進む際に、揺動部材31が第2の状態に置かれ、用紙Pを負荷なく円滑に搬送する必要のある方向に用紙Pが進む際に、揺動部材31が第1の状態に置かれる様に構成することにより、本発明の作用効果を得ることができる。   In the embodiment described above, when the paper P advances from the upstream side toward the downstream side, the swing member 31 is placed in the first state that is not subject to the restriction from the torsion coil spring 32, and from the downstream side. When moving toward the upstream side, the oscillating member 31 is configured to be placed in the second state that is restricted by the torsion coil spring 32. However, the present invention is not limited to this, and it depends on the conveyance direction of the paper P. Thus, the regulation of the swing member 31 can be set freely. That is, when the paper P travels in the transport direction in which the paper P is easily caught and jammed, the swing member 31 is placed in the second state, and the paper P is in a direction in which the paper P needs to be transported smoothly without load. By configuring so that the swing member 31 is placed in the first state when proceeding, the operational effects of the present invention can be obtained.
ところで、浮き上がり規制装置30は、用紙幅方向に複数設けられる。図8は揺動部材31の配置位置を示すものであり、符号31Aで示す揺動部材は、上述したねじりコイルばね32からの規制を受ける揺動部材を示しており、符号31Bで示す揺動部材は、規制手段としてねじりコイルばね32に代えて図9の当接部31cと被当接部43cとを用いた他の実施形態に係る浮き上がり規制装置30’の揺動部材を示している。   Incidentally, a plurality of lifting control devices 30 are provided in the paper width direction. FIG. 8 shows an arrangement position of the swing member 31. The swing member indicated by reference numeral 31A indicates the swing member that receives the restriction from the torsion coil spring 32 described above, and the swing member indicated by reference numeral 31B. The member is a swinging member of a lifting restricting device 30 ′ according to another embodiment using the contact portion 31c and the contacted portion 43c of FIG. 9 instead of the torsion coil spring 32 as the restricting means.
即ち、図9及び図10に示す様に揺動部材31Bには当接部31cが形成されており、揺動部材31Bが図9の反時計回り方向に所定角度揺動した際に、紙案内上43に形成された被当接部43cに当接可能に構成されている。従って、浮き上がり規制装置30’の揺動部材31Bは、揺動可能角度が厳格に規制されることとなり、用紙Pの紙案内上44からの浮き上がりが厳格に規制される(揺動部材31Bの第2の状態)。   That is, as shown in FIGS. 9 and 10, the swing member 31B is formed with a contact portion 31c, and when the swing member 31B swings a predetermined angle in the counterclockwise direction of FIG. It is configured to be able to contact a contacted portion 43c formed on the upper 43. Accordingly, the swingable angle of the swinging member 31B of the lifting regulating device 30 ′ is strictly regulated, and the lifting of the paper P from the paper guide top 44 is strictly regulated (the first of the swinging members 31B). 2 state).
この浮き上がり規制装置30’は、リア給送装置2及びフロント給送装置3から給送される用紙Pと係合可能な位置であって、トレイTが通過する領域を避けた給送基準位置側(1桁側とも言う)に設けられる。図8において符号Xはこの給送基準位置を示しており、図示する様に浮き上がり規制装置30’の揺動部材31Bは、給送基準位置Xに最も近い側に設けられる。尚、符号Xは揺動部材31Bが設けられる位置を示し、符号X〜Xはねじりコイルばね32によって揺動動作が規制される揺動部材31Aが設けられる位置を示している。 The lift regulating device 30 ′ is a position that can be engaged with the paper P fed from the rear feeding device 2 and the front feeding device 3, and is located on the feeding reference position side that avoids the region through which the tray T passes. (Also referred to as the single digit side). Code X 0 in FIG. 8 shows the feed reference position, the swing member 31B of the regulating device 30 'lift the As shown in the figure is provided on the side closest to the feed reference position X 0. Reference numeral X 1 represents a position where the swinging member 31B is provided, the swinging member 31A code X 2 to X 4 are the swing operation by the coil spring 32 torsion is restricted indicates the position provided.
これは、以下の理由による。リア給送装置2やフロント給送装置3から給送される用紙Pが両面印刷の為に逆方向送りされる際に、用紙先端がフレーム10に引っ掛かることを効果的に防止する為には、極力用紙の両端部分に近い位置で浮き上がりを規制することが望ましい。しかし、給送基準位置には、用紙Pの通過を検出するセンサ20が設けられているので、この位置には浮き上がり規制装置を設けることができない。   This is due to the following reason. In order to effectively prevent the leading edge of the paper from being caught by the frame 10 when the paper P fed from the rear feeding device 2 or the front feeding device 3 is fed in the reverse direction for duplex printing, It is desirable to regulate the lifting as close as possible to both ends of the paper. However, since the sensor 20 for detecting the passage of the paper P is provided at the feeding reference position, the lifting restriction device cannot be provided at this position.
従って当該センサ20を避ける様に、給送基準位置側の端部からやや内側の位置(図8の位置X)で用紙の浮き上がりを規制する必要がある。そこで、この様な位置に用紙Pの浮き上がりを厳格に規制することのできる浮き上がり規制装置30’を設けることにより、用紙の端部からやや内側の位置で浮き上がりを規制しても、用紙端部(1桁側端部)がフレーム10に引っ掛かることを効果的に防止することができる。 Therefore, in order to avoid the sensor 20, it is necessary to regulate the lifting of the sheet at a position slightly inside from the end on the feeding reference position side (position X 1 in FIG. 8). Therefore, by providing the lifting restricting device 30 ′ capable of strictly restricting the lifting of the paper P at such a position, even if the lifting is restricted at a position slightly inside from the end of the paper, the end of the paper ( It is possible to effectively prevent the one digit side end) from being caught by the frame 10.
尚、図9の符号aは、紙案内後44とフレーム10との間隔を示し、符号bは、揺動部材31Bが最も大きく揺動した際の当該揺動部材31Bと紙案内後44との間隔を示している。トレイTの搬送を考慮した際に、間隔bが充分な間隔では無い場合でも、浮き上がり規制装置30’はトレイTの通過領域を避けた給送基準位置側に設けられるので、トレイTの搬送を妨げることは無い。   9 indicates the distance between the paper guide 44 and the frame 10, and the symbol b indicates the distance between the swing member 31 </ b> B and the paper guide 44 when the swing member 31 </ b> B swings the most. Shows the interval. When the transport of the tray T is taken into consideration, even if the interval b is not a sufficient interval, the lifting restricting device 30 ′ is provided on the feeding reference position side avoiding the passing region of the tray T. There is no hindrance.
尚、本実施形態では、位置Xは給送基準位置Xから34.1mm、位置Xは同87.7mm、位置Xは同154.4mm、位置Xは同200.3mmに設定され、位置XとXにおいて幅100mmの用紙(例えば、ハガキサイズ)の浮き上がりが規制される。また、位置XとXにおいて幅182mmの用紙(例えば、B5サイズ)の浮き上がりが規制され、位置XとXにおいて幅210mmの用紙(例えば、A4サイズ)或いは幅215.9mmの用紙(例えば、レターサイズ)の浮き上がりが規制される。これら用紙では、80桁側(図8の左側)の用紙端よりも1桁側(図8の右側)の用紙端が、やや内側の位置で浮き上がりが規制されることとなるが、この位置では浮き上がり規制装置30’によって浮き上がりが厳格に規制されるので、1桁側の用紙端がフレーム10に引っ掛かるといった不具合を効果的に防止できる。 In the present embodiment, the setting position X 1 is from the feed reference position X 0 34.1mm, the position X 2 is the same 87.7Mm, position X 3 are the same 154.4Mm, position X 4 are the same 200.3mm is, the sheet width 100mm at position X 1 and X 2 (for example, postcard size) lifting is restricted. The sheet width 182mm at position X 1 and X 3 (e.g., B5 size) lifting is restricted, paper width 210mm at position X 1 and X 4 (for example, A4 size) paper or width 215.9 mm ( For example, the lift of letter size is regulated. With these papers, the lifting of the paper edge on the 1st digit side (right side in FIG. 8) from the paper side on the 80th digit side (left side in FIG. 8) is regulated slightly inside, but at this position, Since the lift is strictly controlled by the lift control device 30 ′, it is possible to effectively prevent a problem that the sheet end on the one-digit side is caught on the frame 10.
本発明に係るプリンタの側断面概略図。1 is a schematic side sectional view of a printer according to the present invention. 本発明に係る浮き上がり規制装置の斜視図。The perspective view of the lifting control apparatus which concerns on this invention. (A)〜(C)本発明に係る浮き上がり規制装置の側面図(動作図)。(A)-(C) The side view (operation | movement figure) of the lifting control apparatus which concerns on this invention. 本発明に係る浮き上がり規制装置を中心とした搬送経路の側面図。The side view of the conveyance path | route centering on the lifting control apparatus which concerns on this invention. 本発明に係る浮き上がり規制装置を中心とした搬送経路の側面図。The side view of the conveyance path | route centering on the lifting control apparatus which concerns on this invention. 本発明に係る浮き上がり規制装置を中心とした搬送経路の側面図。The side view of the conveyance path | route centering on the lifting control apparatus which concerns on this invention. 本発明に係る浮き上がり規制装置を中心とした搬送経路の側面図。The side view of the conveyance path | route centering on the lifting control apparatus which concerns on this invention. トレイの搬送位置と規制部材との位置関係を示す模式図。The schematic diagram which shows the positional relationship of the conveyance position of a tray, and a control member. 本発明に係る浮き上がり規制装置の他の実施形態を示す側面図。The side view which shows other embodiment of the lifting control apparatus which concerns on this invention. 本発明に係る浮き上がり規制装置の他の実施形態を示す斜視図。The perspective view which shows other embodiment of the lifting control apparatus which concerns on this invention.
符号の説明Explanation of symbols
1 インクジェットプリンタ、2 リア給送装置、3 フロント給送装置、4 記録手段、5 搬送手段、6 排出手段、7 メインフレーム、8 サブフレーム、9 紙案内上ユニット、10 フレーム、11 給送ローラ、12 ホッパ、13 リタードローラ、14 戻しレバ−、20 センサ、25 給紙カセット、26 ピックアップローラ、28 給送ローラ、29 分離ローラ、30、30’ 浮き上がり規制装置、31、31A、31B 揺動部材、31a 揺動軸、32 ねじりコイルばね、35 アシストローラ、36 経路切換部材、40 ガイドローラ、41 搬送駆動ローラ、42 搬送従動ローラ、43 紙案内上、44 紙案内後、45 紙案内前、46 キャリッジ、47 キャリッジガイド軸、48 記録ヘッド、55 排出駆動ローラ、56 排出従動ローラ、57 補助ローラ、P 記録用紙、T トレイ DESCRIPTION OF SYMBOLS 1 Inkjet printer, 2 Rear feeding apparatus, 3 Front feeding apparatus, 4 Recording means, 5 Conveyance means, 6 Discharge means, 7 Main frame, 8 Sub frame, 9 Paper guide upper unit, 10 frame, 11 Feed roller, 12 hoppers, 13 retard rollers, 14 return levers, 20 sensors, 25 paper feed cassettes, 26 pickup rollers, 28 feed rollers, 29 separation rollers, 30, 30 ′ lift control devices, 31, 31A, 31B swing members, 31a oscillating shaft, 32 torsion coil spring, 35 assist roller, 36 path switching member, 40 guide roller, 41 transport drive roller, 42 transport driven roller, 43 on paper guide, 44 after paper guide, 45 before paper guide, 46 carriage , 47 Carriage guide shaft, 48 Recording head, 55 Ejection drive Roller, 56 discharge driven roller, 57 auxiliary roller, P recording paper, T tray

Claims (5)

  1. 被搬送媒体に記録を行う記録手段と、
    前記記録手段に対して上流側に位置し、被搬送媒体を支持するとともに被搬送媒体の搬送を案内する案内部材と、
    前記案内部材と対向する位置に設けられ、被搬送媒体の前記案内部材からの浮き上がりを規制する浮き上がり規制装置と、を備え、
    前記浮き上がり規制装置は、
    被搬送媒体の搬送経路を遮る様に配置され、被搬送媒体が接触し該被搬送媒体の移動に伴って、前記記録手段側の搬送経路あるいは前記記録手段とは反対側の搬送経路に向けて揺動する揺動部材と、
    前記揺動部材の前記記録手段とは反対側の搬送経路に向けた揺動動作に規制を加える規制手段と、を備え、
    前記揺動部材は、前記被搬送媒体によって前記記録手段側の搬送経路に向けて揺動する際には、前記規制手段からの規制を受けずに揺動し、前記被搬送媒体によって前記記録手段とは反対側の搬送経路に向けて揺動する際には、前記規制手段からの規制を受けて揺動する、
    ことを特徴とする記録装置。
    Recording means for recording on a transported medium;
    A guide member that is located upstream of the recording means, supports the medium to be transported, and guides the transport of the medium to be transported;
    A lift regulating device that is provided at a position facing the guide member and regulates the lift of the transported medium from the guide member;
    The lifting restriction device is:
    It is arranged so as to block the conveyance path of the medium to be conveyed, and the medium to be conveyed comes into contact with the movement of the medium to be conveyed toward the conveyance path on the recording means side or the conveyance path on the opposite side of the recording means. A swinging member that swings;
    Regulation means for regulating the swing operation of the swing member toward the transport path opposite to the recording means;
    When the swinging member swings toward the transport path on the recording unit side by the transported medium, the swinging member swings without being regulated by the regulating unit, and the recording unit causes the recording unit to When swinging toward the opposite side of the transport path, swing according to the regulation from the regulation means,
    A recording apparatus.
  2. 請求項1に記載の記録装置において、前記規制手段が、前記揺動部材に付勢力を付与する付勢手段を備え、
    前記揺動部材が前記記録手段とは反対側の搬送経路に向けて揺動する際に、当該揺動部材に付勢力を付与する様構成されている、
    ことを特徴とする記録装置。
    The recording apparatus according to claim 1, wherein the restriction unit includes a biasing unit that applies a biasing force to the swinging member,
    The oscillating member is configured to apply a biasing force to the oscillating member when the oscillating member oscillates toward the conveyance path opposite to the recording unit.
    A recording apparatus.
  3. 請求項2に記載の記録装置において、前記付勢手段が、前記揺動部材に設けられて当該揺動部材とともに揺動するねじりコイルばねによって構成され、
    前記揺動部材が前記記録手段とは反対側の搬送経路に向けて揺動する際の当該揺動部材の揺動方向には、前記ねじりコイルばねの一端が当接するばね当接部が設けられ、
    前記ねじりコイルばねの一端が前記当接部に当接することにより、前記揺動部材に前記ねじりコイルばねの付勢力が付与される、
    ことを特徴とする記録装置。
    The recording apparatus according to claim 2, wherein the biasing means is configured by a torsion coil spring provided on the swing member and swinging together with the swing member.
    A spring abutting portion with which one end of the torsion coil spring abuts is provided in the oscillating direction of the oscillating member when the oscillating member oscillates toward the conveyance path opposite to the recording means. ,
    When one end of the torsion coil spring comes into contact with the contact portion, an urging force of the torsion coil spring is applied to the swing member.
    A recording apparatus.
  4. 請求項1に記載の記録装置において、前記規制手段が、前記揺動部材に設けられた当接部と、
    前記揺動部材の所定の揺動角度において前記当接部が当接することにより、前記揺動部材の揺動動作を止める被当接部と、を備えて構成されていることを特徴とする記録装置。
    The recording apparatus according to claim 1, wherein the restriction means includes a contact portion provided on the swing member;
    And a contacted portion that stops the swinging motion of the swinging member by contacting the contact portion at a predetermined swinging angle of the swinging member. apparatus.
  5. 被搬送媒体に液体噴射を行う液体噴射手段と、
    前記記録手段に対して上流側に位置し、被搬送媒体を支持するとともに被搬送媒体の搬送を案内する案内部材と、
    前記案内部材と対向する位置に設けられ、被搬送媒体の前記案内部材からの浮き上がりを規制する浮き上がり規制装置と、を備え、
    前記浮き上がり規制装置は、
    被搬送媒体の搬送経路を遮る様に配置され、被搬送媒体が接触し該被搬送媒体の移動に伴って、前記液体噴射手段側の搬送経路あるいは前記液体噴射手段とは反対側の搬送経路に向けて揺動可能な揺動部材と、
    前記揺動部材の前記液体噴射手段とは反対側の搬送経路に向けた揺動動作に規制を加える規制手段と、を備え、
    前記揺動部材は、前記被搬送媒体によって前記液体噴射手段側の搬送経路に向けて揺動する際には、前記規制手段からの規制を受けずに揺動し、前記被搬送媒体によって前記液体噴射手段とは反対側の搬送経路に向けて揺動する際には、前記規制手段からの規制を受けて揺動する、
    ことを特徴とする液体噴射装置。
    Liquid ejecting means for ejecting liquid onto the transported medium;
    A guide member that is located upstream of the recording means, supports the medium to be transported, and guides the transport of the medium to be transported;
    A lift regulating device that is provided at a position facing the guide member and regulates the lift of the transported medium from the guide member;
    The lifting restriction device is:
    It is arranged so as to block the transport path of the transported medium, and the transported medium comes into contact with the transport path on the liquid ejecting means side or the transport path on the opposite side of the liquid ejecting means as the transported medium moves. A swinging member that can swing toward,
    Regulation means for regulating the swing operation of the swing member toward the transport path opposite to the liquid ejecting means;
    When the swing member swings toward the transport path on the liquid ejecting unit side by the transported medium, the swinging member swings without being regulated by the regulating unit, and the liquid is transported by the transported medium. When swinging toward the conveyance path on the opposite side of the ejection means, swinging is received under the restriction from the restriction means.
    A liquid ejecting apparatus.
JP2006240559A 2006-09-05 2006-09-05 Recording device, liquid ejecting device Active JP4923878B2 (en)

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