JP5061758B2

JP5061758B2 - Inkjet recording apparatus and head mounting mechanism

Info

Publication number: JP5061758B2
Application number: JP2007175147A
Authority: JP
Inventors: 雅幸村岡
Original assignee: Konica Minolta Medical and Graphic Inc
Current assignee: Konica Minolta Medical and Graphic Inc
Priority date: 2007-07-03
Filing date: 2007-07-03
Publication date: 2012-10-31
Anticipated expiration: 2027-07-03
Also published as: JP2009012251A

Description

本発明は、インクジェット記録装置及びヘッド取付機構に係り、特に記録ヘッドの位置を調整自在なインクジェット記録装置及びヘッド取付機構に関する。 The present invention relates to an ink jet recording apparatus and a head mounting mechanism, and more particularly to an ink jet recording apparatus and a head mounting mechanism capable of adjusting the position of a recording head.

従来、記録ヘッドは、ヘッド取付機構によって用紙に対する前後位置と傾きとが調整自在となるように、インクジェット記録装置本体に搭載されている（例えば特許文献１参照）。例えば図５に示すように、従来のヘッド取付機構１００には、記録ヘッド１０１の前面を後方に押圧するためキャリッジ（図示省略）に固定された第一板バネ１０２と、記録ヘッド１０１の右側面を左方向及び下方向の２方向に押圧するためキャリッジに固定された第二板バネ１０３と、記録ヘッド１０１の左側面前部を下向きに案内するためキャリッジに軸支された第一コロ１０４と、記録ヘッド１０１の左側面後部を右方向側に押圧するとともに、記録ヘッド１０１の後面を前方に押圧するため、キャリッジに取り付けられた押圧調整部１０５とが備えられている。 2. Description of the Related Art Conventionally, a recording head is mounted on an ink jet recording apparatus main body so that a front-rear position and an inclination with respect to a sheet can be adjusted by a head mounting mechanism (see, for example, Patent Document 1). For example, as shown in FIG. 5, a conventional head mounting mechanism 100 includes a first leaf spring 102 fixed to a carriage (not shown) for pressing the front surface of the recording head 101 backward, and a right side surface of the recording head 101. A second leaf spring 103 fixed to the carriage to press the left side and the lower side in two directions; a first roller 104 pivotally supported by the carriage to guide the front side of the left side of the recording head 101 downward; In order to press the rear side of the left side of the recording head 101 to the right side and to press the rear side of the recording head 101 forward, a press adjusting unit 105 attached to the carriage is provided.

押圧調整部１０５には、記録ヘッド１０１の後方で、垂直に固設された板状の取付体１０６と、取付体１０６の下方に配置された第一アーム１０７と、第一アーム１０７の下方に配置された第二アーム１０８とが設けられている。 The pressure adjusting unit 105 includes a plate-like mounting body 106 that is vertically fixed behind the recording head 101, a first arm 107 disposed below the mounting body 106, and a lower side of the first arm 107. A second arm 108 is provided.

取付体１０６の右端部には、第二アーム１０８の右端部に係合するネジ１０９が螺合している。
第一アーム１０７の中間部は、軸１１０によってキャリッジに回動自在に軸支されている。第一アーム１０７の右端部には、先端が取付体１０６の後面に接触するネジ１１１が螺合していて、左端部には記録ヘッド１０１の左側面後部を右方向及び下方向の２方向に押圧する第二コロ１１２が軸支されている。
第二アーム１０８の左端部は、第一アーム１０７に重なるように、軸１１０によってキャリッジに回動自在に軸支されている。また、第二アーム１０８における軸１１０の近傍には、記録ヘッド１０１の後面を前方に押圧する突起１１４が設けられている。そして、第二アーム１０８の右端部には、ネジ１０９の先端が接するように立設する立設部１１３が配されている。 A screw 109 that engages with the right end portion of the second arm 108 is screwed into the right end portion of the attachment body 106.
An intermediate portion of the first arm 107 is pivotally supported on the carriage by a shaft 110. A screw 111 whose tip is in contact with the rear surface of the mounting body 106 is screwed into the right end portion of the first arm 107, and the left rear portion of the recording head 101 is placed in two directions, the right direction and the lower direction, at the left end portion. A second roller 112 to be pressed is pivotally supported.
The left end of the second arm 108 is pivotally supported on the carriage by a shaft 110 so as to overlap the first arm 107. Further, a projection 114 that presses the rear surface of the recording head 101 forward is provided in the vicinity of the shaft 110 in the second arm 108. An upright portion 113 is disposed at the right end of the second arm 108 so as to stand up so that the tip of the screw 109 is in contact therewith.

そして、ネジ１１１を回転させて、軸１１０を中心に第一アーム１０７を回動させると、第二コロ１１２が移動し、当該移動に伴って記録ヘッド１０１が第一コロ１０４を支点として揺動する方向に変位することになる。一方、ネジ１０９を回転させて、軸１１０を中心に第二アーム１０８を回転させると、突起１１４が移動し、当該移動に伴って記録ヘッド１０１が前後方向に変位することになる。これらのことにより記録ヘッド１０１の位置が調整される。
特開２００４−２４３６６６号公報 When the screw 111 is rotated and the first arm 107 is rotated about the shaft 110, the second roller 112 moves, and the recording head 101 swings around the first roller 104 along with the movement. It will be displaced in the direction. On the other hand, when the second arm 108 is rotated about the shaft 110 by rotating the screw 109, the projection 114 moves, and the recording head 101 is displaced in the front-rear direction along with the movement. As a result, the position of the recording head 101 is adjusted.
JP 2004-243666 A

ところで、上記のヘッド取付機構であると、通常時においては、記録ヘッド１０１は、第二板バネ１０３、第一コロ１０４及び第二コロ１１２の傾斜面によって上方向の移動が規制されている。しかしながら、例えば記録ヘッド１０１のメンテナンス（吸引、清掃、キャッピング等）を行うメンテナンスユニットの押しつけ力が記録ヘッド１０１の下面から上方に向けて加わると、記録ヘッド１０１は、第二板バネ１０３、第一コロ１０４及び第二コロ１１２の傾斜面に案内されて水平方向に移動し、最終的には記録ヘッド１０１が傾斜面を乗り越えてキャリッジから脱離してしまうおそれがある。 By the way, in the above-described head mounting mechanism, the upward movement of the recording head 101 is restricted by the inclined surfaces of the second leaf spring 103, the first roller 104, and the second roller 112 in a normal state. However, for example, when a pressing force of a maintenance unit that performs maintenance (suction, cleaning, capping, etc.) of the recording head 101 is applied upward from the lower surface of the recording head 101, the recording head 101 has the second leaf spring 103, the first The rollers 104 are guided by the inclined surfaces of the rollers 104 and 112 and move in the horizontal direction. Finally, the recording head 101 may get over the inclined surfaces and be detached from the carriage.

そこで、本発明の課題は、記録ヘッドに対して上方への力が付与された際の記録ヘッドの脱離防止を図ることである。 Therefore, an object of the present invention is to prevent the recording head from being detached when an upward force is applied to the recording head.

請求項１記載の発明は、
インクを吐出する略矩形状の記録ヘッドと、前記記録ヘッドを搭載する基台とを備えるインクジェット記録装置において、
前記基台には、
前記記録ヘッドを前記基台に向けて押圧するための案内面が形成され、前記記録ヘッドの一側面の一端部を係止する支点係止部と、
前記記録ヘッドを前記支点係止部に押圧するための第一弾性部材と、
前記一側面若しくは当該一側面に対向する他側面の他端部を押圧するため、前記一側面若しくは前記他側面に対する進退方向に移動自在に支持されるとともに前記記録ヘッドを前記基台に向けて押圧するための案内面が形成された第一押圧体を有し、当該第一押圧体の移動によって前記支点係止部を支点に前記記録ヘッドを揺動する方向に変位させる傾き調整部と、
前記記録ヘッドを前記第一押圧体に押しつけるための第二弾性部材と、
前記一側面及び前記他側面に直交する二側面のうち、前記他端部側の側面を押圧するため、当該他端部側の側面に対する進退方向に移動自在に支持された第二押圧体を有し、当該第二押圧体の移動によって前記記録ヘッドを前記二側面に直交する方向に変位させる位置調整部と、
前記記録ヘッドを第二押圧体に押しつけるための第三弾性部材と、
前記記録ヘッドに外力が加えられると変位可能なように前記記録ヘッドとの間に隙間を有して配設され、変位する前記記録ヘッドに当接することにより前記記録ヘッドが前記支点係止部及び第一押圧体から脱離しないように、前記記録ヘッドの移動を規制する移動規制部とを備えることを特徴とするインクジェット記録装置。 The invention described in claim 1
In an ink jet recording apparatus comprising a substantially rectangular recording head for discharging ink, and a base on which the recording head is mounted,
In the base,
A guide surface for pressing the recording head toward the base is formed, and a fulcrum locking portion for locking one end of one side surface of the recording head;
A first elastic member for pressing the recording head against the fulcrum locking portion;
In order to press the other side portion of the one side surface or the other side surface facing the one side surface, the recording head is pressed toward the base while being supported movably in the advancing and retreating direction with respect to the one side surface or the other side surface. An inclination adjusting unit that has a first pressing body on which a guide surface is formed, and that displaces the recording head in a swinging direction with the fulcrum locking portion as a fulcrum by movement of the first pressing body;
A second elastic member for pressing the recording head against the first pressing body;
Of the two side surfaces orthogonal to the one side surface and the other side surface, there is a second pressing body supported so as to be movable in the advancing and retreating direction with respect to the side surface on the other end side in order to press the side surface on the other end side. A position adjusting unit that displaces the recording head in a direction perpendicular to the two side surfaces by the movement of the second pressing body;
A third elastic member for pressing the recording head against the second pressing body;
A gap is provided between the recording head and the recording head so that the recording head can be displaced when an external force is applied to the recording head. An ink jet recording apparatus comprising: a movement restricting portion for restricting movement of the recording head so as not to be detached from the first pressing body.

請求項２記載の発明は、
インクを吐出する略矩形状の記録ヘッドと、前記記録ヘッドを搭載する基台とを備えるインクジェット記録装置において、
前記基台には、
前記記録ヘッドを前記基台に向けて押圧するための案内面が形成され、前記記録ヘッドの一側面の一端部を係止する支点係止部と、
前記記録ヘッドを前記支点係止部に押圧するための引っ張りコイルバネからなる第一弾性部材と、
前記一側面若しくは当該一側面に対向する他側面の他端部を押圧するため、前記一側面若しくは前記他側面に対する進退方向に移動自在に支持されるとともに前記記録ヘッドを前記基台に向けて押圧するための案内面が形成された第一押圧体を有し、当該第一押圧体の移動によって前記支点係止部を支点に前記記録ヘッドを揺動する方向に変位させる傾き調整部と、
前記記録ヘッドを前記第一押圧体に押しつけるための引っ張りコイルバネからなる第二弾性部材と、
前記一側面及び前記他側面に直交する二側面のうち、前記他端部側の側面を押圧するため、当該他端部側の側面に対する進退方向に移動自在に支持された第二押圧体を有し、当該第二押圧体の移動によって前記記録ヘッドを前記二側面に直交する方向に変位させる位置調整部と、
前記記録ヘッドを第二押圧体に押しつけるための引っ張りコイルバネからなる第三弾性部材と、
前記記録ヘッドが前記支点係止部及び第一押圧体から脱離しないように、前記記録ヘッドの移動を規制する移動規制部とを備え、
前記第二弾性部材と前記第三弾性部材とは、単一の部材により構成されていて、
前記単一の部材は、当該部材の分力によって前記記録ヘッドが前記第一押圧体と前記第二押圧体とのそれぞれに押しつけられるように配置されていることを特徴としている。 According to a second aspect of the invention,
In an ink jet recording apparatus comprising a substantially rectangular recording head for discharging ink, and a base on which the recording head is mounted,
In the base,
A guide surface for pressing the recording head toward the base is formed, and a fulcrum locking portion for locking one end of one side surface of the recording head;
A first elastic member comprising a tension coil spring for pressing the recording head against the fulcrum locking portion;
In order to press the other side portion of the one side surface or the other side surface facing the one side surface, the recording head is pressed toward the base while being supported movably in the advancing and retreating direction with respect to the one side surface or the other side surface. An inclination adjusting unit that has a first pressing body on which a guide surface is formed, and that displaces the recording head in a swinging direction with the fulcrum locking portion as a fulcrum by movement of the first pressing body;
A second elastic member comprising a tension coil spring for pressing the recording head against the first pressing body;
Of the two side surfaces orthogonal to the one side surface and the other side surface, there is a second pressing body supported so as to be movable in the advancing and retreating direction with respect to the side surface on the other end side in order to press the side surface on the other end side. A position adjusting unit that displaces the recording head in a direction perpendicular to the two side surfaces by the movement of the second pressing body;
A third elastic member made of a tension coil spring for pressing the recording head against the second pressing body;
A movement restricting portion for restricting the movement of the recording head so that the recording head does not detach from the fulcrum locking portion and the first pressing body,
The second elastic member and the third elastic member are constituted by a single member,
The single member is arranged such that the recording head is pressed against each of the first pressing body and the second pressing body by a component force of the member .

請求項３記載の発明は、
請求項１に記載のインクジェット記録装置において、
前記第一弾性部材、前記第二弾性部材及び前記第三弾性部材は、引っ張りコイルバネであり、
前記第一弾性部材は前記記録ヘッドを前記支点係止部に向けて付勢し、
前記第二弾性部材は前記記録ヘッドを前記第一押圧体に向けて付勢し、
前記第三弾性部材は前記記録ヘッドを前記第二押圧体に向けて付勢していることを特徴としている。 The invention described in claim 3
The inkjet recording apparatus according to claim 1 , wherein
The first elastic member, the second elastic member, and the third elastic member are tension coil springs,
The first elastic member biases the recording head toward the fulcrum locking portion,
The second elastic member biases the recording head toward the first pressing body,
The third elastic member biases the recording head toward the second pressing body.

請求項４記載の発明は、請求項１又は３に記載のインクジェット記録装置において、
前記第二弾性部材と前記第三弾性部材とは、単一の部材により構成されていて、
前記単一の部材は、当該部材の分力によって前記記録ヘッドが前記第一押圧体と前記第二押圧体とのそれぞれに押しつけられるように配置されていることを特徴としている。
請求項５記載の発明は、請求項１〜４のいずれか一項に記載のインクジェット記録装置において、
前記移動規制部は、前記記録ヘッドの前記基台から離れる方向への移動を規制する規制部位を備えることを特徴としている。
請求項６記載の発明は、請求項１〜５のいずれか一項に記載のインクジェット記録装置において、
前記第一押圧体は、前記記録ヘッドの前記他側面の他端部を押圧するため、前記他側面に対する進退方向に移動自在に支持されていることを特徴としている。
請求項７記載の発明は、請求項６に記載のインクジェット記録装置において、
前記移動規制部は、前記記録ヘッドの前記他側面の一端部及び前記一側面の他端部にそれぞれ設けられていることを特徴としている。 The invention according to claim 4 is the ink jet recording apparatus according to claim 1 or 3 ,
The second elastic member and the third elastic member are constituted by a single member,
The single member is arranged such that the recording head is pressed against each of the first pressing body and the second pressing body by a component force of the member.
Invention of Claim 5 is an inkjet recording device as described in any one of Claims 1-4,
The movement restricting portion includes a restricting portion that restricts movement of the recording head in a direction away from the base.
Invention of Claim 6 is an inkjet recording device as described in any one of Claims 1-5.
The first pressing body is supported so as to be movable in an advancing and retreating direction with respect to the other side surface in order to press the other end portion of the other side surface of the recording head.
The invention according to claim 7 is the ink jet recording apparatus according to claim 6,
The movement restricting portion is provided at one end portion of the other side surface and the other end portion of the one side surface of the recording head, respectively.

請求項８記載の発明は、
インクを吐出する略矩形状の記録ヘッドを基台に取り付けるためのヘッド取付機構において、
前記記録ヘッドを前記基台に向けて押圧するための案内面が形成され、前記記録ヘッドの一側面の一端部を係止する支点係止部と、
前記記録ヘッドを前記支点係止部に押圧するための第一弾性部材と、
前記一側面若しくは当該一側面に対向する他側面の他端部を押圧するため、前記一側面若しくは前記他側面に対する進退方向に移動自在に支持されるとともに前記記録ヘッドを前記基台に向けて押圧するための案内面が形成された第一押圧体を有し、当該第一押圧体の移動によって前記支点係止部を支点に前記記録ヘッドを揺動する方向に変位させる傾き調整部と、
前記記録ヘッドを前記第一押圧体に押しつけるための第二弾性部材と、
前記一側面及び前記他側面に直交する二側面のうち、前記他端部側の側面を押圧するため、当該他端部側の側面に対する進退方向に移動自在に支持された第二押圧体を有し、当該第二押圧体の移動によって前記記録ヘッドを前記二側面に直交する方向に変位させる位置調整部と、
前記記録ヘッドを第二押圧体に押しつけるための第三弾性部材と、
前記記録ヘッドに外力が加えられると変位可能なように前記記録ヘッドとの間に隙間を有して配設され、変位する前記記録ヘッドに当接することにより前記記録ヘッドが前記支点係止部及び第一押圧体から脱離しないように、前記記録ヘッドの移動を規制する移動規制部とを備えることを特徴としている。
請求項９記載の発明は、
インクを吐出する略矩形状の記録ヘッドを基台に取り付けるためのヘッド取付機構において、
前記記録ヘッドを前記基台に向けて押圧するための案内面が形成され、前記記録ヘッドの一側面の一端部を係止する支点係止部と、
前記記録ヘッドを前記支点係止部に押圧するための引っ張りコイルバネからなる第一弾性部材と、
前記一側面若しくは当該一側面に対向する他側面の他端部を押圧するため、前記一側面若しくは前記他側面に対する進退方向に移動自在に支持されるとともに前記記録ヘッドを前記基台に向けて押圧するための案内面が形成された第一押圧体を有し、当該第一押圧体の移動によって前記支点係止部を支点に前記記録ヘッドを揺動する方向に変位させる傾き調整部と、
前記記録ヘッドを前記第一押圧体に押しつけるための引っ張りコイルバネからなる第二弾性部材と、
前記一側面及び前記他側面に直交する二側面のうち、前記他端部側の側面を押圧するため、当該他端部側の側面に対する進退方向に移動自在に支持された第二押圧体を有し、当該第二押圧体の移動によって前記記録ヘッドを前記二側面に直交する方向に変位させる位置調整部と、
前記記録ヘッドを第二押圧体に押しつけるための引っ張りコイルバネからなる第三弾性部材と、
前記記録ヘッドが前記支点係止部及び第一押圧体から脱離しないように、前記記録ヘッドの移動を規制する移動規制部とを備え、
前記第二弾性部材と前記第三弾性部材とは、単一の部材により構成されていて、
前記単一の部材は、当該部材の分力によって前記記録ヘッドが前記第一押圧体と前記第二押圧体とのそれぞれに押しつけられるように配置されていることを特徴としている。 The invention described in claim 8
In a head mounting mechanism for mounting a substantially rectangular recording head for discharging ink on a base,
A guide surface for pressing the recording head toward the base is formed, and a fulcrum locking portion for locking one end of one side surface of the recording head;
A first elastic member for pressing the recording head against the fulcrum locking portion;
In order to press the other side portion of the one side surface or the other side surface facing the one side surface, the recording head is pressed toward the base while being supported movably in the advancing and retreating direction with respect to the one side surface or the other side surface. An inclination adjusting unit that has a first pressing body on which a guide surface is formed, and that displaces the recording head in a swinging direction with the fulcrum locking portion as a fulcrum by movement of the first pressing body;
A second elastic member for pressing the recording head against the first pressing body;
Of the two side surfaces orthogonal to the one side surface and the other side surface, there is a second pressing body supported so as to be movable in the advancing and retreating direction with respect to the side surface on the other end side in order to press the side surface on the other end side. A position adjusting unit that displaces the recording head in a direction perpendicular to the two side surfaces by the movement of the second pressing body;
A third elastic member for pressing the recording head against the second pressing body;
A gap is provided between the recording head and the recording head so that the recording head can be displaced when an external force is applied to the recording head. And a movement restricting portion for restricting movement of the recording head so as not to be detached from the first pressing body.
The invention according to claim 9
In a head mounting mechanism for mounting a substantially rectangular recording head for discharging ink on a base,
A guide surface for pressing the recording head toward the base is formed, and a fulcrum locking portion for locking one end of one side surface of the recording head;
A first elastic member comprising a tension coil spring for pressing the recording head against the fulcrum locking portion;
In order to press the other side portion of the one side surface or the other side surface facing the one side surface, the recording head is pressed toward the base while being supported movably in the advancing and retreating direction with respect to the one side surface or the other side surface. An inclination adjusting unit that has a first pressing body on which a guide surface is formed, and that displaces the recording head in a swinging direction with the fulcrum locking portion as a fulcrum by movement of the first pressing body;
A second elastic member comprising a tension coil spring for pressing the recording head against the first pressing body;
Of the two side surfaces orthogonal to the one side surface and the other side surface, there is a second pressing body supported so as to be movable in the advancing and retreating direction with respect to the side surface on the other end side in order to press the side surface on the other end side. A position adjusting unit that displaces the recording head in a direction perpendicular to the two side surfaces by the movement of the second pressing body;
A third elastic member made of a tension coil spring for pressing the recording head against the second pressing body;
A movement restricting portion for restricting the movement of the recording head so that the recording head does not detach from the fulcrum locking portion and the first pressing body,
The second elastic member and the third elastic member are constituted by a single member,
The single member is arranged such that the recording head is pressed against each of the first pressing body and the second pressing body by a component force of the member.

本発明によれば、記録ヘッドが支点係止部及び第一押圧体から脱離しないように、移動規制部材によって記録ヘッドの移動が規制されているので、例えば記録ヘッドに下方向からの力が加わり、記録ヘッドが案内面に沿って移動したとしても、移動規制部によってそれ以上の移動が規制されることになる。このため、記録ヘッドが案内面を超えて移動し基台から脱離することを防止できる。 According to the present invention, since the movement of the recording head is restricted by the movement restricting member so that the recording head is not detached from the fulcrum locking portion and the first pressing body, for example, a downward force is applied to the recording head. In addition, even if the recording head moves along the guide surface, the movement restricting portion restricts further movement. For this reason, it is possible to prevent the recording head from moving beyond the guide surface and detaching from the base.

以下、本実施形態におけるインクジェット記録装置について図を参照して説明する。図１はインクジェット記録装置に搭載されるキャリッジの概略構成を示す斜視図である。図１に示すようにインクジェット記録装置１のキャリッジ２には、用紙に向けてインクを吐出する複数の記録ヘッド３が搭載されている。複数の記録ヘッド３は、主走査方向に沿って４つずつ２列で交互に配列されている。これらの記録ヘッド３は、それぞれヘッド取付機構１０によってキャリッジ２に取り付けられている。 Hereinafter, the ink jet recording apparatus according to the present embodiment will be described with reference to the drawings. FIG. 1 is a perspective view showing a schematic configuration of a carriage mounted on the ink jet recording apparatus. As shown in FIG. 1, the carriage 2 of the inkjet recording apparatus 1 is equipped with a plurality of recording heads 3 that eject ink toward a sheet. The plurality of recording heads 3 are alternately arranged in two rows of four along the main scanning direction. Each of these recording heads 3 is attached to the carriage 2 by a head attachment mechanism 10.

記録ヘッド３とヘッド取付機構１０とについて詳細に説明する。図２はヘッド取付機構１０によりキャリッジ２に取り付けられた記録ヘッド３を示す上面図である。なお、以下の説明において例えば図２における上下方向を前後方向、左右方向を左右方向、手前−奥方向を上下方向として説明する。 The recording head 3 and the head mounting mechanism 10 will be described in detail. FIG. 2 is a top view showing the recording head 3 attached to the carriage 2 by the head attachment mechanism 10. In the following description, for example, the vertical direction in FIG. 2 will be described as the front-rear direction, the left-right direction is the left-right direction, and the near-back direction is the vertical direction.

図２に示すように、記録ヘッド３には、インクを吐出するヘッド本体３１と、ヘッド本体３１の吐出面側周囲を保持する保持枠３２とが設けられている。保持枠３２は、略矩形状に形成されていて、前端部（本発明に係る一端部）及び後端部（本発明に係る他端部）には支持軸３３，３４が取り付けられている。また、保持枠３２の左側面３２１（本発明に係る一側面）の前端部には傾斜面（第一傾斜面３６：図３参照）が形成されている。さらに保持枠３２の右側面３２２（本発明に係る他側面）の後端部には傾斜面（第二傾斜面３８：図４参照）が形成されている。また、保持枠３２の後部は、外側に向けて略矩形状に突出し、突出部３９を形成している。当該突出部３９に保持枠３２の後面３２４が設けられている。保持枠３２の後面３２４は、本発明に係る「前記一側面及び前記他側面に直交する二側面のうち、前記他端部側の側面」である。なお、前述の二側面のうち、他方の面は、保持枠３２の前面３２３である。 As shown in FIG. 2, the recording head 3 is provided with a head main body 31 that discharges ink and a holding frame 32 that holds the periphery of the discharge surface side of the head main body 31. The holding frame 32 is formed in a substantially rectangular shape, and support shafts 33 and 34 are attached to a front end portion (one end portion according to the present invention) and a rear end portion (the other end portion according to the present invention). Further, an inclined surface (first inclined surface 36: see FIG. 3) is formed at the front end portion of the left side surface 321 (one side surface according to the present invention) of the holding frame 32. Further, an inclined surface (second inclined surface 38: see FIG. 4) is formed at the rear end portion of the right side surface 322 (the other side surface according to the present invention) of the holding frame 32. The rear portion of the holding frame 32 protrudes in a substantially rectangular shape toward the outside to form a protruding portion 39. A rear surface 324 of the holding frame 32 is provided on the protrusion 39. The rear surface 324 of the holding frame 32 is a “side surface on the other end portion side of two side surfaces orthogonal to the one side surface and the other side surface” according to the present invention. Of the two side surfaces described above, the other surface is the front surface 323 of the holding frame 32.

図３は図２のヘッド取付機構１０を前側から見た側面図、図４は図２のヘッド取付機構１０を右側から見た側面図である。図２〜図４に示すようにヘッド取付機構１０は、キャリッジ２上に設けられ、記録ヘッド３の保持枠３２を摺動自在に支持している。キャリッジ２は本発明に係る基台である。ヘッド取付機構１０は、支点係止部２０、ヘッド調整部４０、第一コイルバネ７０、第二コイルバネ８０、移動規制部８５ａ，８５ｂ等から構成されている。 3 is a side view of the head mounting mechanism 10 of FIG. 2 viewed from the front side, and FIG. 4 is a side view of the head mounting mechanism 10 of FIG. 2 viewed from the right side. As shown in FIGS. 2 to 4, the head mounting mechanism 10 is provided on the carriage 2 and slidably supports the holding frame 32 of the recording head 3. The carriage 2 is a base according to the present invention. The head mounting mechanism 10 includes a fulcrum locking portion 20, a head adjustment portion 40, a first coil spring 70, a second coil spring 80, movement restriction portions 85a and 85b, and the like.

支点係止部２０は、記録ヘッド３の保持枠３２の左側面３２１の前端部を係止するものである。支点係止部２０は、図３に示すように、キャリッジ２上に固定されていて、その中間部分が上に向かって広がるようにテーパ状に形成されている。テーパ面１２は、本発明に係る案内面であり、保持枠３２の第一傾斜面３６に接することで、記録ヘッド３をキャリッジ２に向けて押圧するようになっている。 The fulcrum locking portion 20 locks the front end portion of the left side surface 321 of the holding frame 32 of the recording head 3. As shown in FIG. 3, the fulcrum locking portion 20 is fixed on the carriage 2 and is formed in a tapered shape so that an intermediate portion thereof is spread upward. The tapered surface 12 is a guide surface according to the present invention, and presses the recording head 3 toward the carriage 2 by contacting the first inclined surface 36 of the holding frame 32.

ヘッド調整部４０は、記録ヘッド３の後端部側に配置されていて、記録ヘッド３の前後方向に対する傾きや位置を調整するものである。ヘッド調整部４０には、キャリッジ２に固定される固定部５０と、固定部５０の上方で回動自在な第一回動部６０と、第一回動部６０の上方で回動自在な第二回動部９０と、固定部５０から立設し、第一回動部６０及び第二回動部９０を軸支する回動軸８が備えられている。 The head adjustment unit 40 is disposed on the rear end side of the recording head 3 and adjusts the inclination and position of the recording head 3 with respect to the front-rear direction. The head adjustment unit 40 includes a fixed unit 50 fixed to the carriage 2, a first rotating unit 60 that is rotatable above the fixing unit 50, and a first rotatable unit that is rotatable above the first rotating unit 60. Two rotating portions 90 and a rotating shaft 8 that stands up from the fixed portion 50 and pivotally supports the first rotating portion 60 and the second rotating portion 90 are provided.

固定部５０には、板材から形成された第一板部５１と、第一板部５１により支持された調整部５２とが設けられている。 The fixed portion 50 is provided with a first plate portion 51 formed from a plate material and an adjustment portion 52 supported by the first plate portion 51.

第一板部５１には、キャリッジ２に重なる平板部５３と、平板部５３の縁から起立する３つの起立部（第一起立部５４、第二起立部５５、第三起立部５６）とが備えられている。
第一板部５１は上面視略Ｌ字状に形成されている。ここで、第一板部５１の長辺部分を長辺部５７と称し、短辺部分を短辺部５８と称す。第一板部５１は、長辺部５７が突出部３９の後端面（後面３２４）から所定の間隔を空けて左右方向に沿って、なおかつ短辺部５８が突出部３９の左側面から所定の間隔を空けて前後方向に沿うようにキャリッジ２に固定されている。 The first plate portion 51 includes a flat plate portion 53 that overlaps the carriage 2 and three upright portions (a first upright portion 54, a second upright portion 55, and a third upright portion 56) that stand up from the edge of the flat plate portion 53. Is provided.
The first plate portion 51 is formed in a substantially L shape when viewed from above. Here, the long side portion of the first plate portion 51 is referred to as a long side portion 57, and the short side portion is referred to as a short side portion 58. In the first plate portion 51, the long side portion 57 is spaced from the rear end surface (rear surface 324) of the protruding portion 39 along the left-right direction, and the short side portion 58 is predetermined from the left side surface of the protruding portion 39. It is being fixed to the carriage 2 along the front-back direction at intervals.

調整部５２には、第二起立部５５に支持されたネジ５２１と、ネジ５２１が挿通されたバネ５２２とが備えられている。 The adjustment unit 52 includes a screw 521 supported by the second upright portion 55 and a spring 522 through which the screw 521 is inserted.

第一回動部６０は板材から形成されており、当該第一回動部６０の左側端部には、調整部５２のネジ５２１の先端部が接する第四起立部６１が設けられている。また、第一回動部６０の前部には、保持枠３２の後面３２４に接する円弧部６２が形成されている。そして、第一回動部６０の右側端部は、回動軸８によって回動自在に軸支されている。この第一回動部６０が、調整部５２のネジ５２１の進退によって押され、回動軸８を中心に回動すると、円弧部６２が後面３２４に対する進退方向に移動し、当該後面３２４を押圧するようになっている。 The first rotating portion 60 is formed of a plate material, and a fourth upright portion 61 is provided at the left end portion of the first rotating portion 60 so that the tip of the screw 521 of the adjusting portion 52 contacts. Further, an arc portion 62 that is in contact with the rear surface 324 of the holding frame 32 is formed at the front portion of the first rotating portion 60. The right end portion of the first rotation portion 60 is pivotally supported by the rotation shaft 8 so as to be rotatable. When the first rotating part 60 is pushed by the advancement / retraction of the screw 521 of the adjustment part 52 and rotates about the rotation shaft 8, the arc part 62 moves in the advance / retreat direction with respect to the rear surface 324 and presses the rear surface 324. It is supposed to be.

第二回動部９０には、板材から形成された第二板部９１と、第二板部９１により回動自在に支持されたコロ９２と、第二板部９１に支持された調整部９３とが備えられている。
第二板部９１は、上面視略Ｌ字状に形成されている。ここで、第二板部９１の長辺部分を第二長辺部９４と称し、短辺部分を第二短辺部９５と称す。第二板部９１は、第二短辺部９５の先端部が第二傾斜面３８の上方に位置し、なおかつ第二長辺部９４が左右方向に沿うように回動軸８に回動自在に支持されている。 The second rotating portion 90 includes a second plate portion 91 formed from a plate material, a roller 92 rotatably supported by the second plate portion 91, and an adjustment portion 93 supported by the second plate portion 91. And are provided.
The second plate portion 91 is formed in a substantially L shape when viewed from above. Here, the long side portion of the second plate portion 91 is referred to as a second long side portion 94, and the short side portion is referred to as a second short side portion 95. The second plate portion 91 is rotatable about the rotation shaft 8 so that the tip end portion of the second short side portion 95 is located above the second inclined surface 38 and the second long side portion 94 is along the left-right direction. It is supported by.

コロ９２は、第二回動部９０における第二短辺部９５の先端部に回動自在に支持されている。これにより、コロ９２は、第二回動部９０の回動に基づき保持枠３２の右側面３２２に対する進退方向に移動自在に支持されており、当該移動によって保持枠３２の第二傾斜面３８（保持枠３２の左側面３２１に対向する他側面の他端部）を押圧することになる。つまり、コロ９２が本発明に係る第一押圧体である。また、コロ９２は、図４に示すようにその下部が上に向かって広がるようにテーパ状に形成されている。テーパ面９６は、本発明に係る案内面であり、保持枠３２の第二傾斜面３８に接することで、記録ヘッド３をキャリッジ２に向けて押圧するようになっている。 The roller 92 is rotatably supported at the tip end portion of the second short side portion 95 in the second rotating portion 90. As a result, the roller 92 is supported so as to be movable in the advancing / retreating direction with respect to the right side surface 322 of the holding frame 32 based on the rotation of the second rotating portion 90, and the second inclined surface 38 ( The other end of the other side facing the left side 321 of the holding frame 32 is pressed. That is, the roller 92 is the first pressing body according to the present invention. In addition, the roller 92 is formed in a tapered shape so that the lower portion of the roller 92 expands upward as shown in FIG. The tapered surface 96 is a guide surface according to the present invention, and presses the recording head 3 toward the carriage 2 by contacting the second inclined surface 38 of the holding frame 32.

調整部９３は、図２に示すように第二長辺部９４の先端部に支持されて、第一起立部５４に接するネジ９３１と、ネジ９３１が挿通されたバネ９３２とが備えられている。調整部９３のネジ９３１が、第一起立部５４に当接し第二回動部９０と第一起立部５４との距離を変化させることで、第二回動部９０が回動軸８を中心に回動するようになっている。 As shown in FIG. 2, the adjustment portion 93 is supported by the tip of the second long side portion 94 and includes a screw 931 that contacts the first upright portion 54 and a spring 932 through which the screw 931 is inserted. . The screw 931 of the adjustment unit 93 abuts on the first standing part 54 and changes the distance between the second turning part 90 and the first standing part 54, so that the second turning part 90 is centered on the turning shaft 8. It is designed to rotate.

第一コイルバネ７０は、本発明に係る第一弾性部材としての引っ張りコイルバネであり、その一端部が支点係止部２０に固定され、他端部が保持枠３２における前端部の支持軸３３に固定されている。これによって、第一コイルバネ７０は記録ヘッド３を常に支点係止部２０に押圧することになるため、第二回動部９０の回動に基づきコロ９２が保持枠３２の第二傾斜面３８を押圧すると、記録ヘッド３が支点係止部２０を支点に揺動することになる。 The first coil spring 70 is a tension coil spring as a first elastic member according to the present invention, one end of which is fixed to the fulcrum locking portion 20 and the other end is fixed to the support shaft 33 at the front end of the holding frame 32. Has been. Accordingly, the first coil spring 70 always presses the recording head 3 against the fulcrum locking portion 20, so that the roller 92 moves the second inclined surface 38 of the holding frame 32 based on the rotation of the second rotation portion 90. When pressed, the recording head 3 swings around the fulcrum locking portion 20 as a fulcrum.

第二コイルバネ８０は、本発明に係る第二弾性部材及び第三弾性部材としての引っ張りコイルバネであり、その一端部が第一板部５１の第三起立部５６に固定され、他端部が保持枠３２における後端部の支持軸３４に固定されている。このとき第二コイルバネ８０の分力が前後方向及び左右方向に沿うように第二コイルバネ８０は配置されている。これによって、保持枠３２に対しては前後方向及び左右方向に沿う力が付勢されることになり、記録ヘッド３はコロ９２及び円弧部６２に押しつけられるようになっている。 The second coil spring 80 is a tension coil spring as the second elastic member and the third elastic member according to the present invention, one end of which is fixed to the third upright portion 56 of the first plate portion 51 and the other end is held. The frame 32 is fixed to the support shaft 34 at the rear end. At this time, the second coil spring 80 is arranged so that the component force of the second coil spring 80 is along the front-rear direction and the left-right direction. As a result, a force along the front-rear direction and the left-right direction is urged against the holding frame 32, and the recording head 3 is pressed against the roller 92 and the arc portion 62.

移動規制部８５ａ，８５ｂは、記録ヘッド３がキャリッジ２から脱離しないように、記録ヘッド３の移動を規制するものである。移動規制部８５ａは保持枠３２の前端部右方に配置されていて、移動規制部８５ｂは保持枠３２の後端部左方に配置されている。この移動規制部８５ａ，８５ｂには、図２〜図４に示すように、キャリッジ２から立設し、記録ヘッド３の左右方向の移動を規制する軸８６ａ，８６ｂと、軸８６ａ，８６ｂの頭部に固定され、記録ヘッド３の上下方向の移動を規制する段差部８７ａ，８７ｂとが設けられている。例えば、下方向からメンテナンスユニット等の押しつけにより記録ヘッド３に上向きの力が付与されると、記録ヘッド３の保持枠３２がテーパ面１２及びテーパ面９６に沿って右側若しくは左側へ移動する。このとき、保持枠３２の前端左部が支点係止部２０のテーパ面１２を乗り越える前に、保持枠３２の後端部右部が移動規制部８５ａの軸８６ａに当接して、支点係止部２０から脱離することが防止される。また、同様に保持枠３２の後端右部がコロ９２のテーパ面９６を乗り越える前に、保持枠３２の後端部左部が移動規制部８５ｂの軸８６ｂに当接して、コロ９２から脱離することが防止される。そして、段差部８７とキャリッジ２との間隔は、保持枠３２の厚みよりも僅かに大きく設定されており、これにより、保持枠３２の前端右部が移動規制部８５ａの軸８６ａに沿って上方に移動して脱離すること、又は保持枠３２の後端左部が移動規制部８５ｂの軸８６ｂに沿って上方に移動して脱離することが規制される。段差部８７ａ，８７ｂは、キャリッジ２から脱離する方向へ記録ヘッド３が移動することを規制する本発明に係る規制部位である。 The movement restricting portions 85 a and 85 b restrict the movement of the recording head 3 so that the recording head 3 is not detached from the carriage 2. The movement restricting portion 85 a is disposed on the right side of the front end portion of the holding frame 32, and the movement restricting portion 85 b is disposed on the left side of the rear end portion of the holding frame 32. As shown in FIGS. 2 to 4, the movement restricting portions 85 a and 85 b are erected from the carriage 2, and shafts 86 a and 86 b that restrict the movement of the recording head 3 in the left-right direction and the heads of the shafts 86 a and 86 b. Steps 87a and 87b are provided that are fixed to the head and restrict the movement of the recording head 3 in the vertical direction. For example, when an upward force is applied to the recording head 3 by pressing a maintenance unit or the like from below, the holding frame 32 of the recording head 3 moves to the right or left side along the tapered surface 12 and the tapered surface 96. At this time, before the left part of the front end of the holding frame 32 gets over the tapered surface 12 of the fulcrum locking part 20, the right part of the rear end part of the holding frame 32 comes into contact with the shaft 86 a of the movement restricting part 85 a to lock the fulcrum. Detachment from the part 20 is prevented. Similarly, before the right portion of the rear end of the holding frame 32 gets over the tapered surface 96 of the roller 92, the left portion of the rear end portion of the holding frame 32 comes into contact with the shaft 86b of the movement restricting portion 85b so that it is detached from the roller 92. Release is prevented. The distance between the stepped portion 87 and the carriage 2 is set to be slightly larger than the thickness of the holding frame 32, so that the right part of the front end of the holding frame 32 moves upward along the axis 86a of the movement restricting portion 85a. To the left and the left end of the rear end of the holding frame 32 is restricted to move upward along the axis 86b of the movement restricting portion 85b to be detached. The step portions 87 a and 87 b are restriction portions according to the present invention that restrict the movement of the recording head 3 in the direction of detachment from the carriage 2.

次に本実施形態の作用について説明する。
まず、前後方向に対する位置調整をする場合、作業者によって調整部５２のネジ５２１が回されると、ネジ５２１は進退し第四起立部６１を介して第一回動部６０を回動させる。この回動によって、円弧部６２が突出部３９の後面３２４に対する進退方向に移動し、当該後面３２４を押圧する。これにより記録ヘッド３が前後方向に変位し、前後方向の位置調整が実行される。つまり、円弧部６２が本発明に係る第二押圧体であり、円弧部６２、第一回動部６０、第四起立部６１、調整部５２及び回動軸８が本発明に係る位置調整部である。 Next, the operation of this embodiment will be described.
First, when adjusting the position in the front-rear direction, when the screw 521 of the adjustment unit 52 is turned by the operator, the screw 521 moves forward and backward to rotate the first rotation unit 60 via the fourth upright unit 61. By this rotation, the arc portion 62 moves in the advancing / retreating direction with respect to the rear surface 324 of the protruding portion 39 and presses the rear surface 324. As a result, the recording head 3 is displaced in the front-rear direction, and position adjustment in the front-rear direction is executed. That is, the arc portion 62 is the second pressing body according to the present invention, and the arc portion 62, the first rotating portion 60, the fourth upright portion 61, the adjusting portion 52, and the rotating shaft 8 are the position adjusting portion according to the present invention. It is.

一方、前後方向に対する傾き調整をする場合、作業者によって調整部９３のネジ９３１が回されると、ネジ９３１は第二回動部９０と第一起立部５４との距離を変化させることで、第二回動部９０を回動させる。この回動によって、コロ９２が保持枠３２の第二傾斜面３８を押圧することで、記録ヘッド３が支点係止部２０を支点に揺動し、前後方向に対しての傾き調整が実行される。つまり、コロ９２が本発明に係る第一押圧体であり、突出部３９、第一回動部６０第一起立部５４、調整部９３及び回動軸８等が本発明に係る傾き調整部である。 On the other hand, when adjusting the inclination with respect to the front-rear direction, when the screw 931 of the adjusting unit 93 is turned by the operator, the screw 931 changes the distance between the second rotating unit 90 and the first upright unit 54, The second rotating unit 90 is rotated. By this rotation, the roller 92 presses the second inclined surface 38 of the holding frame 32, so that the recording head 3 swings with the fulcrum locking portion 20 as a fulcrum, and the tilt adjustment in the front-rear direction is executed. The That is, the roller 92 is the first pressing body according to the present invention, and the protruding portion 39, the first rotating portion 60, the first standing portion 54, the adjusting portion 93, the rotating shaft 8 and the like are the tilt adjusting portion according to the present invention. is there.

調整後においては、調整部５２のネジ５２１がバネ５２２によって付勢され、第一回動部６０の回動を規制する一方、調整部９３のネジ９３１がバネ９３２によって付勢され、第二回動部９０の回動を規制しているため、第一コイルバネ７０及び第二コイルバネ８０の付勢力によって保持枠３２が支点係止部２０、コロ９２及び円弧部６２により挟持されることになり、記録ヘッド３がキャリッジ２上で位置決めされることになる。 After the adjustment, the screw 521 of the adjustment unit 52 is urged by the spring 522 and restricts the rotation of the first rotation unit 60, while the screw 931 of the adjustment unit 93 is urged by the spring 932, and the second rotation. Since the rotation of the moving part 90 is restricted, the holding frame 32 is sandwiched between the fulcrum locking part 20, the roller 92 and the arc part 62 by the urging force of the first coil spring 70 and the second coil spring 80. The recording head 3 is positioned on the carriage 2.

そして、例えば、下方向からのメンテナンスユニット等の押しつけ力により、記録ヘッド３に上向きの力が付与されると、記録ヘッド３が案内面（テーパ面１２，９６）に沿って支点係止部２０及びコロ９２から左右方向に離れるように移動するが、移動規制部８５ａ，８５ｂによってそれ以上の移動が規制されることになる。さらに、段差部８７ａ，８７ｂ、コロ９２及び支点係止部２０が記録ヘッド３の上方への移動を規制しているので、記録ヘッド３がキャリッジ２から脱離してしまうことが防止される。 For example, when an upward force is applied to the recording head 3 by a pressing force of a maintenance unit or the like from the lower direction, the recording head 3 moves along the guide surfaces (tapered surfaces 12 and 96) to the fulcrum locking portion 20. In addition, it moves away from the roller 92 in the left-right direction, but further movement is restricted by the movement restricting portions 85a and 85b. Furthermore, since the step portions 87a and 87b, the roller 92, and the fulcrum locking portion 20 restrict the upward movement of the recording head 3, the recording head 3 is prevented from being detached from the carriage 2.

以上のように、本実施形態によれば、記録ヘッド３がキャリッジ２から脱離することを確実に防止できる。 As described above, according to this embodiment, the recording head 3 can be reliably prevented from being detached from the carriage 2.

そして、第一コイルバネ７０が保持枠３２を支点係止部２０に向けて付勢し、第二コイルバネ８０が保持枠３２をコロ９２及び円弧部６２に向けて付勢しているので、記録ヘッド３を押圧する押圧手段をヘッド取付機構１０とは別にキャリッジ２上に設置する場合（例えば図５の第一板バネ１０２や第二板バネ１０３）と比較しても、設置スペースを省略することができ、装置全体の小型化を図ることが可能となる。
さらに、第二コイルバネ８０は、その分力によって保持枠３２に対して前後方向及び左右方向に沿う力を付勢しているために、それぞれの方向に個別にバネを設置した場合と比較しても部品点数を削減することができる。 Since the first coil spring 70 urges the holding frame 32 toward the fulcrum locking portion 20 and the second coil spring 80 urges the holding frame 32 toward the roller 92 and the arc portion 62, the recording head Even when the pressing means for pressing 3 is installed on the carriage 2 separately from the head mounting mechanism 10 (for example, the first leaf spring 102 and the second leaf spring 103 in FIG. 5), the installation space is omitted. Thus, the entire apparatus can be reduced in size.
Furthermore, since the second coil spring 80 urges the holding frame 32 with a force along the front-rear direction and the left-right direction, the second coil spring 80 is compared with the case where the spring is individually installed in each direction. Also, the number of parts can be reduced.

なお、本発明は上記実施形態に限らず適宜変更可能であるのは勿論である。
例えば、本実施形態では、キャリッジ２により記録ヘッド３が走査されることで画像を形成するシリアルタイプのインクジェット記録装置１を例示して説明したが、ライン式のインクジェット記録装置であっても本発明の構成は適用可能である。
また、本実施形態では、記録ヘッド３の左への移動を規制する移動規制部８５ｂを設けているが、これ以外にも例えば、第一板部５１の短辺部５８と突出部３９の左側面との間隔を適宜設定することにより、短辺部５８によっても記録ヘッド３の保持枠３２が左側への移動を規制することが可能になる。 Of course, the present invention is not limited to the above-described embodiment and can be modified as appropriate.
For example, in the present embodiment, the serial type ink jet recording apparatus 1 that forms an image by scanning the recording head 3 with the carriage 2 is described as an example. However, the present invention is applicable to a line type ink jet recording apparatus. The configuration of is applicable.
In the present embodiment, the movement restricting portion 85b that restricts the leftward movement of the recording head 3 is provided. In addition to this, for example, the short side portion 58 of the first plate portion 51 and the left side of the protruding portion 39 are provided. By appropriately setting the distance from the surface, the holding frame 32 of the recording head 3 can be restricted from moving to the left side even by the short side portion 58.

本実施形態に係るインクジェット記録装置のキャリッジの構成を示す斜視図である。2 is a perspective view illustrating a configuration of a carriage of the ink jet recording apparatus according to the embodiment. 図１のインクジェット記録装置に備わるヘッド取付機構１０により記録ヘッドがキャリッジ２に取り付けられた状態を示す上面図である。FIG. 2 is a top view showing a state in which a recording head is attached to a carriage 2 by a head attachment mechanism 10 provided in the ink jet recording apparatus of FIG. 1. 図２のヘッド取付機構を前側から見た側面図である。FIG. 3 is a side view of the head mounting mechanism of FIG. 2 as viewed from the front side. 図２のヘッド取付機構１０を右側から見た側面図である。It is the side view which looked at the head attachment mechanism 10 of FIG. 2 from the right side. 従来のヘッド取付機構の概略構成を示す上面図である。It is a top view which shows schematic structure of the conventional head attachment mechanism.

Explanation of symbols

１インクジェット記録装置
２キャリッジ（基台）
３記録ヘッド
８回動軸
１０ヘッド取付機構
２０支点係止部
３１ヘッド本体
３２保持枠
４０ヘッド調整部
５０固定部
６０第一回動部
７０第一コイルバネ
８０第二コイルバネ
８５ａ，８５ｂ移動規制部
９０第二回動部 1 Inkjet recording device 2 Carriage (base)
DESCRIPTION OF SYMBOLS 3 Recording head 8 Rotating shaft 10 Head attachment mechanism 20 Supporting point locking part 31 Head main body 32 Holding frame 40 Head adjustment part 50 Fixing part 60 First rotation part 70 First coil spring 80 Second coil spring 85a, 85b Movement control part 90 Second rotating part

Claims

In an ink jet recording apparatus comprising a substantially rectangular recording head for discharging ink, and a base on which the recording head is mounted,
In the base,
A guide surface for pressing the recording head toward the base is formed, and a fulcrum locking portion for locking one end of one side surface of the recording head;
A first elastic member for pressing the recording head against the fulcrum locking portion;
In order to press the other side portion of the one side surface or the other side surface facing the one side surface, the recording head is pressed toward the base while being supported movably in the advancing and retreating direction with respect to the one side surface or the other side surface. An inclination adjusting unit that has a first pressing body on which a guide surface is formed, and that displaces the recording head in a swinging direction with the fulcrum locking portion as a fulcrum by movement of the first pressing body;
A second elastic member for pressing the recording head against the first pressing body;
Of the two side surfaces orthogonal to the one side surface and the other side surface, there is a second pressing body supported so as to be movable in the advancing and retreating direction with respect to the side surface on the other end side in order to press the side surface on the other end side. A position adjusting unit that displaces the recording head in a direction perpendicular to the two side surfaces by the movement of the second pressing body;
A third elastic member for pressing the recording head against the second pressing body;
A gap is provided between the recording head and the recording head so that the recording head can be displaced when an external force is applied to the recording head. An ink jet recording apparatus comprising: a movement restricting portion for restricting movement of the recording head so as not to be detached from the first pressing body.

In an ink jet recording apparatus comprising a substantially rectangular recording head for discharging ink, and a base on which the recording head is mounted,
In the base,
A guide surface for pressing the recording head toward the base is formed, and a fulcrum locking portion for locking one end of one side surface of the recording head;
A first elastic member comprising a tension coil spring for pressing the recording head against the fulcrum locking portion;
In order to press the other side portion of the one side surface or the other side surface facing the one side surface, the recording head is pressed toward the base while being supported movably in the advancing and retreating direction with respect to the one side surface or the other side surface. An inclination adjusting unit that has a first pressing body on which a guide surface is formed, and that displaces the recording head in a swinging direction with the fulcrum locking portion as a fulcrum by movement of the first pressing body;
A second elastic member comprising a tension coil spring for pressing the recording head against the first pressing body;
Of the two side surfaces orthogonal to the one side surface and the other side surface, there is a second pressing body supported so as to be movable in the advancing and retreating direction with respect to the side surface on the other end side in order to press the side surface on the other end side. A position adjusting unit that displaces the recording head in a direction perpendicular to the two side surfaces by the movement of the second pressing body;
A third elastic member made of a tension coil spring for pressing the recording head against the second pressing body;
A movement restricting portion for restricting the movement of the recording head so that the recording head does not detach from the fulcrum locking portion and the first pressing body,
The second elastic member and the third elastic member are constituted by a single member,
The inkjet recording apparatus, wherein the single member is arranged such that the recording head is pressed against each of the first pressing body and the second pressing body by a component force of the member.

The inkjet recording apparatus according to claim 1 , wherein
The first elastic member, the second elastic member, and the third elastic member are tension coil springs,
The first elastic member biases the recording head toward the fulcrum locking portion,
The second elastic member biases the recording head toward the first pressing body,
The ink jet recording apparatus, wherein the third elastic member urges the recording head toward the second pressing body.

In the ink jet recording apparatus according to claim 1 or 3 ,
The second elastic member and the third elastic member are constituted by a single member,
The inkjet recording apparatus, wherein the single member is arranged such that the recording head is pressed against each of the first pressing body and the second pressing body by a component force of the member.

In the ink jet recording apparatus according to any one of claims 1 to 4,
The ink jet recording apparatus, wherein the movement restricting portion includes a restricting portion that restricts movement of the recording head in a direction away from the base.

In the ink jet recording apparatus according to any one of claims 1 to 5,
The ink jet recording apparatus according to claim 1, wherein the first pressing body is supported so as to be movable in an advancing and retreating direction with respect to the other side surface in order to press the other end portion of the other side surface of the recording head.

The inkjet recording apparatus according to claim 6, wherein
The ink jet recording apparatus, wherein the movement restricting portion is provided at one end of the other side of the recording head and the other end of the one side.

In a head mounting mechanism for mounting a substantially rectangular recording head for discharging ink on a base,
A guide surface for pressing the recording head toward the base is formed, and a fulcrum locking portion for locking one end of one side surface of the recording head;
A first elastic member for pressing the recording head against the fulcrum locking portion;
In order to press the other side portion of the one side surface or the other side surface facing the one side surface, the recording head is pressed toward the base while being supported movably in the advancing and retreating direction with respect to the one side surface or the other side surface. An inclination adjusting unit that has a first pressing body on which a guide surface is formed, and that displaces the recording head in a swinging direction with the fulcrum locking portion as a fulcrum by movement of the first pressing body;
A second elastic member for pressing the recording head against the first pressing body;
Of the two side surfaces orthogonal to the one side surface and the other side surface, there is a second pressing body supported so as to be movable in the advancing and retreating direction with respect to the side surface on the other end side in order to press the side surface on the other end side. A position adjusting unit that displaces the recording head in a direction perpendicular to the two side surfaces by the movement of the second pressing body;
A third elastic member for pressing the recording head against the second pressing body;
A gap is provided between the recording head and the recording head so that the recording head can be displaced when an external force is applied to the recording head. A head mounting mechanism comprising: a movement restricting portion for restricting movement of the recording head so as not to be detached from the first pressing body.

In a head mounting mechanism for mounting a substantially rectangular recording head for discharging ink on a base,
A guide surface for pressing the recording head toward the base is formed, and a fulcrum locking portion for locking one end of one side surface of the recording head;
A first elastic member comprising a tension coil spring for pressing the recording head against the fulcrum locking portion;
In order to press the other side portion of the one side surface or the other side surface facing the one side surface, the recording head is pressed toward the base while being supported movably in the advancing and retreating direction with respect to the one side surface or the other side surface. An inclination adjusting unit that has a first pressing body on which a guide surface is formed, and that displaces the recording head in a swinging direction with the fulcrum locking portion as a fulcrum by movement of the first pressing body;
A second elastic member comprising a tension coil spring for pressing the recording head against the first pressing body;
Of the two side surfaces orthogonal to the one side surface and the other side surface, there is a second pressing body supported so as to be movable in the advancing and retreating direction with respect to the side surface on the other end side in order to press the side surface on the other end side. A position adjusting unit that displaces the recording head in a direction perpendicular to the two side surfaces by the movement of the second pressing body;
A third elastic member made of a tension coil spring for pressing the recording head against the second pressing body;
A movement restricting portion for restricting the movement of the recording head so that the recording head does not detach from the fulcrum locking portion and the first pressing body,
The second elastic member and the third elastic member are constituted by a single member,
The single member is arranged such that the recording head is pressed against each of the first pressing body and the second pressing body by a component force of the member.