JP3233793U - Liquid discharge device - Google Patents

Liquid discharge device Download PDF

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Publication number
JP3233793U
JP3233793U JP2021002465U JP2021002465U JP3233793U JP 3233793 U JP3233793 U JP 3233793U JP 2021002465 U JP2021002465 U JP 2021002465U JP 2021002465 U JP2021002465 U JP 2021002465U JP 3233793 U JP3233793 U JP 3233793U
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heads
fixing member
convex portion
discharge device
liquid discharge
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篤史 三輪
篤史 三輪
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Brother Industries Ltd
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Brother Industries Ltd
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Priority to JP2021002465U priority Critical patent/JP3233793U/en
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Priority to CN202221587071.2U priority patent/CN217671774U/en
Priority to DE202022103501.6U priority patent/DE202022103501U1/en
Priority to FR2206307A priority patent/FR3124433B3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/1752—Mounting within the printer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface

Abstract

【課題】各ヘッドにより形成される画像間に空白を設けることができる液体吐出装置を提供する。
【解決手段】液体吐出装置１００は、２つのヘッド１１と、２つのヘッド１１間の位置を調整可能な調整機構５０とを備えている。調整機構５０は、２つのヘッド１１のノズル領域が前後方向に互いに離隔した位置に、２つのヘッド１１を配置可能に構成されている。
【選択図】図５PROBLEM TO BE SOLVED: To provide a liquid discharge device capable of providing a blank between images formed by each head.
A liquid discharge device 100 includes two heads 11 and an adjusting mechanism 50 capable of adjusting the position between the two heads 11. The adjusting mechanism 50 is configured so that the two heads 11 can be arranged at positions where the nozzle regions of the two heads 11 are separated from each other in the front-rear direction.
[Selection diagram] Fig. 5

Description

本考案は、複数のヘッドを備えた液体吐出装置に関する。 The present invention relates to a liquid discharge device including a plurality of heads.

特許文献１には、複数の記録ヘッド（ヘッド）を備えたインクジェット記録装置（液体吐出装置）において、複数の記録ヘッドを、調整部によって水平方向（ヘッド搬送台の走行方向と直交する方向）に移動させ、位置調整することが示されている。 In Patent Document 1, in an inkjet recording device (liquid ejection device) provided with a plurality of recording heads (heads), a plurality of recording heads are set in a horizontal direction (direction orthogonal to the traveling direction of the head carrier) by an adjusting unit. It is shown to be moved and repositioned.

特開平８−１９７７２１号公報Japanese Unexamined Patent Publication No. 8-197721

特許文献１において、複数のヘッドは、上記走行方向（複数のヘッドに対して記録媒体が相対的に移動する方向に沿った第１方向）に並び、かつ、上記走行方向に互いに重なり合う部分を有する。この場合、各ヘッドにより形成される画像間に空白を設けること（即ち、記録媒体に対し、走行方向と直交する方向（第２方向）に互いに離隔した領域に、ヘッド毎に画像を形成すること）が困難である。 In Patent Document 1, the plurality of heads are arranged in the traveling direction (the first direction along the direction in which the recording medium moves relative to the plurality of heads), and have portions that overlap each other in the traveling direction. .. In this case, a space is provided between the images formed by each head (that is, an image is formed for each head in a region separated from each other in a direction orthogonal to the traveling direction (second direction) with respect to the recording medium. ) Is difficult.

本考案の目的は、各ヘッドにより形成される画像間に空白を設けることができる液体吐出装置を提供することにある。 An object of the present invention is to provide a liquid discharge device capable of providing a gap between images formed by each head.

本考案に係る液体吐出装置は、それぞれ複数のノズルが形成されたノズル面を有する、複数のヘッドと、前記複数のヘッド間の位置を調整可能な、調整機構と、を備え、前記複数のヘッドは、前記複数のヘッドに対して記録媒体が相対的に移動する方向に沿った第１方向に並び、前記調整機構は、前記複数のヘッド間の、前記ノズル面と平行でかつ前記第１方向と直交する第２方向の位置を調整可能であり、前記複数のヘッドそれぞれの前記ノズル面における前記複数のノズルが配置されたノズル領域が前記第２方向に互いに離隔した位置に、前記複数のヘッドを配置可能に構成されていることを特徴とする。 The liquid discharge device according to the present invention includes a plurality of heads each having a nozzle surface on which a plurality of nozzles are formed, and an adjustment mechanism capable of adjusting the position between the plurality of heads, and the plurality of heads. Are arranged in the first direction along the direction in which the recording medium moves relative to the plurality of heads, and the adjusting mechanism is parallel to the nozzle surface and in the first direction between the plurality of heads. The position of the plurality of heads in the second direction orthogonal to the head can be adjusted, and the plurality of heads are located at positions where the nozzle regions in which the plurality of nozzles are arranged on the nozzle surface of each of the plurality of heads are separated from each other in the second direction. It is characterized in that it is configured so that it can be arranged.

本考案によれば、調整機構によりヘッド間の第２方向の位置を調整することで、各ヘッドにより形成される画像間に空白を設けること（即ち、記録媒体に対し、第２方向に互いに離隔した領域に、ヘッド毎に画像を形成すること）ができる。 According to the present invention, by adjusting the position between the heads in the second direction by the adjusting mechanism, a space is provided between the images formed by the heads (that is, the recording medium is separated from each other in the second direction). An image can be formed for each head in the created area).

本考案の第１実施形態に係る吐出ユニット１００の斜視図である。It is a perspective view of the discharge unit 100 which concerns on 1st Embodiment of this invention. 図１の吐出ユニット１００の下面図である。It is a bottom view of the discharge unit 100 of FIG. ヘッド１１を取り外した状態における図１の吐出ユニット１００の斜視図である。It is a perspective view of the discharge unit 100 of FIG. 1 in the state where the head 11 is removed. 図３から固定部材１２２を前方にスライドさせた状態を示す吐出ユニット１００の斜視図である。FIG. 3 is a perspective view of the discharge unit 100 showing a state in which the fixing member 122 is slid forward from FIG. 図４の各固定部材１２１，１２２にヘッド１１を装着した状態を示す吐出ユニット１００の斜視図である。It is a perspective view of the discharge unit 100 which shows the state which the head 11 is attached to each fixing member 121, 122 of FIG. 図５の吐出ユニット１００の下面図である。It is a bottom view of the discharge unit 100 of FIG. 図４の吐出ユニット１００の側面図である。It is a side view of the discharge unit 100 of FIG. 図７のＶＩＩＩ−ＶＩＩＩ線に沿った吐出ユニット１００の断面図である。It is sectional drawing of the discharge unit 100 along the line VIII-VIII of FIG. 図７のＩＸ−ＩＸ線に沿った吐出ユニット１００の断面図である。It is sectional drawing of the discharge unit 100 along the IX-IX line of FIG. 本考案の第２実施形態に係る吐出ユニット２００の斜視図である。It is a perspective view of the discharge unit 200 which concerns on 2nd Embodiment of this invention. 図１０の吐出ユニット２００の下面図である。It is a bottom view of the discharge unit 200 of FIG. ヘッド１１を取り外した状態における図１０の吐出ユニット２００の斜視図である。It is a perspective view of the discharge unit 200 of FIG. 10 in a state where the head 11 is removed.

＜第１実施形態＞
本考案の第１実施形態に係る吐出ユニット１００は、図１に示すように、２つのヘッド１１と、２つの固定部材１２１，１２２と、２つのヘッド１１間の位置を調整可能な調整機構５０とを備えている。 <First Embodiment>
As shown in FIG. 1, the discharge unit 100 according to the first embodiment of the present invention has an adjusting mechanism 50 capable of adjusting the positions between the two heads 11, the two fixing members 121 and 122, and the two heads 11. And have.

２つのヘッド１１は、左右方向（本考案の「第１方向Ｄ１」）に並んでいる。各ヘッド１１は、図示を省略するが、インクを貯留するタンクと、タンクからインクが供給される流路部材とを含む。流路部材には、タンクから供給されたインクが流れる流路が形成されている。各ヘッド１１は、図２に示すように、当該流路の先端である複数のノズル１１ｎが形成されたノズル面１１Ｎ（流路部材の下面）を有する。 The two heads 11 are arranged in the left-right direction (“first direction D1” of the present invention). Although not shown, each head 11 includes a tank for storing ink and a flow path member to which ink is supplied from the tank. The flow path member is formed with a flow path through which the ink supplied from the tank flows. As shown in FIG. 2, each head 11 has a nozzle surface 11N (lower surface of the flow path member) on which a plurality of nozzles 11n, which are the tips of the flow paths, are formed.

左右方向は、ヘッド１１に対して記録媒体が相対的に移動する方向（搬送方向）に沿った方向である。本実施形態では、ヘッド１１は定位置に固定されており、記録媒体（例えば、食品等の包材）が、搬送機構（図示略）の駆動により、右から左に向かって（搬送方向に）搬送される。包材が２つのヘッド１１の下方を通過するときに、ドライバＩＣ（図示略）の駆動によりノズル１１ｎからインクが吐出され、包材にインクが着弾することで、包材に画像が記録される。 The left-right direction is a direction along a direction (conveyance direction) in which the recording medium moves relative to the head 11. In the present embodiment, the head 11 is fixed at a fixed position, and a recording medium (for example, a packaging material for food or the like) is driven by a transport mechanism (not shown) from right to left (in the transport direction). Be transported. When the packaging material passes below the two heads 11, ink is ejected from the nozzle 11n by driving a driver IC (not shown), and the ink lands on the packaging material, so that an image is recorded on the packaging material. ..

２つのヘッド１１は、前後方向（左右方向と直交する方向であり、本考案の「第２方向Ｄ２」）にずれて配置されている。前後方向及び左右方向は、共に、ノズル面１１Ｎ（図２参照）と平行であり、鉛直方向（本考案の「第３方向Ｄ３」）と直交する。 The two heads 11 are arranged so as to be offset in the front-rear direction (the direction orthogonal to the left-right direction and the "second direction D2" of the present invention). Both the front-rear direction and the left-right direction are parallel to the nozzle surface 11N (see FIG. 2) and orthogonal to the vertical direction (“third direction D3” of the present invention).

２つのヘッド１１は、それぞれ、カートリッジ式であり、固定部材１２１，１２２に対して前後方向に着脱可能に固定されている。各ヘッド１１のノズル面１１Ｎは、各固定部材１２１，１２２の開口１２１ｘ，１２２ｘを介して露出している（図２参照）。 The two heads 11 are of a cartridge type, respectively, and are detachably fixed to the fixing members 121 and 122 in the front-rear direction. The nozzle surface 11N of each head 11 is exposed through the openings 121x and 122x of the fixing members 121 and 122 (see FIG. 2).

固定部材１２１，１２２は、それぞれ、図３及び図４に示すように、ヘッド１１（図１参照）の左側面に沿う側壁１２１ｗ１，１２２ｗ２と、ヘッド１１の右側面に沿う側壁１２１ｗ２，１２２ｗ２とを有する。 As shown in FIGS. 3 and 4, the fixing members 121 and 122 have side walls 121w1, 122w2 along the left side surface of the head 11 (see FIG. 1) and side walls 121w2 and 122w2 along the right side surface of the head 11, respectively. Have.

固定部材１２１は、さらに、側壁１２１ｗ１に固定された隔壁１２１ｐを有する。図８に示すように、固定部材１２１の側壁１２１ｗ１と固定部材１２２の側壁１２２ｗ１との間に、隔壁１２１ｐが配置されている。 The fixing member 121 further has a partition wall 121p fixed to the side wall 121w1. As shown in FIG. 8, the partition wall 121p is arranged between the side wall 121w1 of the fixing member 121 and the side wall 122w1 of the fixing member 122.

固定部材１２１は本考案の「第１固定部材」に該当し、固定部材１２２は本考案の「第２固定部材」に該当する。固定部材１２２は、固定部材１２１と左右方向に隣接し、調整機構５０により固定部材１２１に対して前後方向にスライド可能である（図３及び図４参照）。 The fixing member 121 corresponds to the "first fixing member" of the present invention, and the fixing member 122 corresponds to the "second fixing member" of the present invention. The fixing member 122 is adjacent to the fixing member 121 in the left-right direction, and can be slidable in the front-rear direction with respect to the fixing member 121 by the adjusting mechanism 50 (see FIGS. 3 and 4).

調整機構５０は、２つのヘッド１１間の前後方向の位置を調整可能であり、固定部材１２１に設けられた２つの長穴５１，５２と、固定部材１２２に設けられた３つの凸部５３，５４，５５（図４、図７等参照）とを含む。 The adjusting mechanism 50 can adjust the position between the two heads 11 in the front-rear direction, and has two elongated holes 51 and 52 provided in the fixing member 121 and three convex portions 53 provided in the fixing member 122. Includes 54, 55 (see FIGS. 4, 7, etc.).

２つの長穴５１，５２は、固定部材１２１の隔壁１２１ｐに形成された貫通孔であって、それぞれ前後方向に延び、かつ、鉛直方向に互いに離隔している。 The two elongated holes 51 and 52 are through holes formed in the partition wall 121p of the fixing member 121, and extend in the front-rear direction and are separated from each other in the vertical direction.

長穴５２（図９参照）は、長穴５１（図８参照）よりも前後方向に長く、第１部分５２ａと、第２部分５２ｂとを含む。第１部分５２ａは、図４及び図７に示すように、長穴５１と形状及びサイズが同じであり、長穴５１と鉛直方向に重なっている。第２部分５２ｂは、図９に示すように第１部分５２ａの後端から後方に延び、図示は省略するが鉛直方向の長さ（幅）が第１部分５２ａよりも小さい。 The elongated hole 52 (see FIG. 9) is longer in the front-rear direction than the elongated hole 51 (see FIG. 8) and includes a first portion 52a and a second portion 52b. As shown in FIGS. 4 and 7, the first portion 52a has the same shape and size as the elongated hole 51, and overlaps the elongated hole 51 in the vertical direction. As shown in FIG. 9, the second portion 52b extends rearward from the rear end of the first portion 52a, and although not shown, the length (width) in the vertical direction is smaller than that of the first portion 52a.

３つの凸部５３，５４，５５は、固定部材１２２の側壁１２２ｗ２に設けられている。凸部５３は、凸部５４，５５よりも上方に位置する。凸部５４，５５は、鉛直方向において互いに同じ高さにある。凸部５３は、長穴５１に挿入された状態で前後方向にスライド可能である。凸部５４，５５は、長穴５２に挿入された状態で前後方向にスライド可能である。より詳細には、凸部５４は第１部分５２ａにおいてスライド可能であり、凸部５５は第１部分５２ａの後端部と第２部分５２ｂとにおいてスライド可能である（図９参照）。 The three convex portions 53, 54, 55 are provided on the side wall 122w2 of the fixing member 122. The convex portion 53 is located above the convex portions 54 and 55. The protrusions 54 and 55 are at the same height as each other in the vertical direction. The convex portion 53 can slide in the front-rear direction while being inserted into the elongated hole 51. The convex portions 54 and 55 can slide in the front-rear direction while being inserted into the elongated holes 52. More specifically, the convex portion 54 is slidable in the first portion 52a, and the convex portion 55 is slidable in the rear end portion of the first portion 52a and the second portion 52b (see FIG. 9).

図８及び図９に示すように、凸部５３，５４はねじの頭部で構成され、凸部５５は位置決めピンの頭部で構成されている。凸部５３を長穴５１、凸部５４，５５を長穴５２にそれぞれ挿入した状態で、固定部材１２２を固定部材１２１に対して前後方向にスライドさせ（図３及び図４参照）、位置調整した後に、凸部５３，５４を構成するねじを締めることで、固定部材１２１，１２２が互いに固定される。 As shown in FIGS. 8 and 9, the convex portions 53 and 54 are composed of the heads of the screws, and the convex portions 55 are composed of the heads of the positioning pins. With the convex portion 53 inserted into the elongated hole 51 and the convex portions 54 and 55 inserted into the elongated hole 52, the fixing member 122 is slid in the front-rear direction with respect to the fixing member 121 (see FIGS. 3 and 4) to adjust the position. After that, the fixing members 121 and 122 are fixed to each other by tightening the screws constituting the convex portions 53 and 54.

また、図８及び図９に示すように、凸部５４は、凸部５３よりも高さ（側壁１２２ｗ２からの突出高さ）が低い。凸部５３は、隔壁１２１ｐの厚みと側壁１２１ｗ１の厚みとの和と同程度の高さを有し、隔壁１２１ｐ及び側壁１２１ｗ１と前後方向に重なっている。一方、凸部５４は、隔壁１２１ｐの厚みと同程度の高さを有し、隔壁１２１ｐと前後方向に重なるが、側壁１２１ｗ１とは前後方向に重なっていない。 Further, as shown in FIGS. 8 and 9, the convex portion 54 has a lower height (protruding height from the side wall 122w2) than the convex portion 53. The convex portion 53 has a height similar to the sum of the thickness of the partition wall 121p and the thickness of the side wall 121w1, and overlaps the partition wall 121p and the side wall 121w1 in the front-rear direction. On the other hand, the convex portion 54 has a height similar to the thickness of the partition wall 121p and overlaps the partition wall 121p in the front-rear direction, but does not overlap the side wall 121w1 in the front-rear direction.

図９に示すように、凸部５５は、凸部５４よりも高さ（側壁１２２ｗ２からの突出高さ）が低く、隔壁１２１ｐの厚みよりも小さな高さを有する。凸部５４の先端は、隔壁１２１ｐの表面（側壁１２１ｗ１が固定された面）と同一面内にある。一方、凸部５５の先端は、隔壁１２１ｐの表面と裏面（側壁１２２ｗ２と接する面）との間に位置する。 As shown in FIG. 9, the convex portion 55 has a lower height (protruding height from the side wall 122w2) than the convex portion 54 and a height smaller than the thickness of the partition wall 121p. The tip of the convex portion 54 is in the same plane as the surface of the partition wall 121p (the surface on which the side wall 121w1 is fixed). On the other hand, the tip of the convex portion 55 is located between the front surface of the partition wall 121p and the back surface (the surface in contact with the side wall 122w2).

固定部材１２１，１２２は、前後方向に互いにスライドすることで、図１〜図３に示す位置（２つのヘッド１１が前後方向に最も近接した位置であり、図２に示すように２つのヘッド１１それぞれのノズル領域１１Ｒ（ノズル面１１Ｎ における複数のノズル１１ｎが配置された領域）が左右方向に互いに部分的に重なる位置）と、図４〜図９に示す位置（２つのヘッド１１が前後方向に最も離隔した位置であり、図６に示すように２つのヘッド１１それぞれのノズル領域１１Ｒが前後方向に互いに離隔した位置）とを取り得る。換言すると、調整機構５０は、２つのヘッド１１それぞれのノズル領域１１Ｒが左右方向に互いに部分的に重なる位置（図２参照）と、２つのヘッド１１それぞれのノズル領域１１Ｒが前後方向に互いに離隔した位置（図６参照）とに、２つのヘッド１１を配置可能に構成されている。 By sliding the fixing members 121 and 122 to each other in the front-rear direction, the positions shown in FIGS. 1 to 3 (the two heads 11 are the positions closest to each other in the front-rear direction, and the two heads 11 are as shown in FIG. Each nozzle region 11R (a region on the nozzle surface 11N where a plurality of nozzles 11n are arranged) partially overlaps each other in the left-right direction) and positions shown in FIGS. 4 to 9 (two heads 11 are arranged in the front-rear direction). It is the most separated position, and as shown in FIG. 6, the nozzle regions 11R of each of the two heads 11 can be separated from each other in the front-rear direction). In other words, the adjustment mechanism 50 is such that the nozzle regions 11R of the two heads 11 partially overlap each other in the left-right direction (see FIG. 2) and the nozzle regions 11R of the two heads 11 are separated from each other in the front-rear direction. Two heads 11 can be arranged at a position (see FIG. 6).

固定部材１２１，１２２が図１〜図３に示す位置（２つのヘッド１１が前後方向に最も近接した位置）にあるとき、凸部５３は長穴５１の後端壁（図８参照）に接触し、凸部５５は長穴５２の後端壁（図９参照）に接触している。固定部材１２１，１２２が図４〜図９に示す位置（２つのヘッド１１が前後方向に最も離隔した位置）にあるとき、凸部５３は長穴５１の前端壁（図８参照）に接触し、凸部５４は長穴５２の前端壁（図９参照）に接触している。このように凸部５３，５４，５５が長穴５１，５２の前端壁又は後端壁に接触することで、固定部材１２２の固定部材１２１に対する前後方向の移動が停止される。 When the fixing members 121 and 122 are in the positions shown in FIGS. 1 to 3 (the positions where the two heads 11 are closest to each other in the front-rear direction), the convex portion 53 contacts the rear end wall (see FIG. 8) of the elongated hole 51. However, the convex portion 55 is in contact with the rear end wall (see FIG. 9) of the elongated hole 52. When the fixing members 121 and 122 are in the positions shown in FIGS. 4 to 9 (the positions where the two heads 11 are most separated in the front-rear direction), the convex portion 53 contacts the front end wall (see FIG. 8) of the elongated hole 51. , The convex portion 54 is in contact with the front end wall (see FIG. 9) of the elongated hole 52. When the convex portions 53, 54, 55 come into contact with the front end wall or the rear end wall of the elongated holes 51, 52 in this way, the movement of the fixing member 122 with respect to the fixing member 121 in the front-rear direction is stopped.

ここで、固定部材１２２が固定部材１２１に対して前後方向に移動する過程について説明する。先ず、固定部材１２１，１２２が図１〜図３に示す位置にあるとき、凸部５３が長穴５１の後端壁（図８参照）に接触しかつ凸部５５が長穴５２の後端壁（図９参照）に接触することにより、固定部材１２２の後方への移動が禁止されている。この状態から、固定部材１２２を前方に移動させると（図３参照）、凸部５３が長穴５１に挿入された状態で前方に移動し、凸部５４，５５が長穴５２に挿入された状態で前方に移動する。そして、固定部材１２１，１２２が図４〜図９に示す位置に至ったときに、凸部５３が長穴５１の前端壁（図８参照）に接触し、凸部５４が長穴５２の前端壁（図９参照）に接触することにより、固定部材１２２の前方への移動が停止される。 Here, a process in which the fixing member 122 moves in the front-rear direction with respect to the fixing member 121 will be described. First, when the fixing members 121 and 122 are in the positions shown in FIGS. 1 to 3, the convex portion 53 contacts the rear end wall of the elongated hole 51 (see FIG. 8), and the convex portion 55 is the rear end of the elongated hole 52. The rearward movement of the fixing member 122 is prohibited by contacting the wall (see FIG. 9). When the fixing member 122 was moved forward from this state (see FIG. 3), the convex portion 53 was moved forward with the convex portion 53 inserted into the elongated hole 51, and the convex portions 54 and 55 were inserted into the elongated hole 52. Move forward in the state. Then, when the fixing members 121 and 122 reach the positions shown in FIGS. 4 to 9, the convex portion 53 contacts the front end wall of the elongated hole 51 (see FIG. 8), and the convex portion 54 is the front end of the elongated hole 52. Upon contact with the wall (see FIG. 9), the forward movement of the fixing member 122 is stopped.

以上に述べたように、本実施形態によれば、調整機構５０は、２つのヘッド１１それぞれのノズル領域１１Ｒが前後方向に互いに離隔した位置（図６参照）に、２つのヘッド１１を配置可能に構成されている。このように調整機構５０によりヘッド１１間の前後方向の位置を調整することで、各ヘッド１１により形成される画像間に空白を設けること（即ち、記録媒体に対し、前後方向に互いに離隔した領域に、ヘッド１１毎に画像を形成すること）ができる。 As described above, according to the present embodiment, the adjusting mechanism 50 can arrange the two heads 11 at positions where the nozzle regions 11R of the two heads 11 are separated from each other in the front-rear direction (see FIG. 6). It is configured in. By adjusting the position between the heads 11 in the front-rear direction by the adjusting mechanism 50 in this way, a space is provided between the images formed by each head 11 (that is, a region separated from each other in the front-rear direction with respect to the recording medium). An image can be formed for each head 11).

調整機構５０は、固定部材１２１，１２２（ヘッド１１が着脱可能に固定される部材）に設けられている（図３、図４、図７等参照）。この場合、固定部材１２１，１２２に調整機構５０を設けたことで、着脱式の（交換可能な）ヘッド１１には調整機構５０を設ける必要がなく、ヘッド１１の構成の簡素化及び低コスト化を図ることができる。 The adjusting mechanism 50 is provided on the fixing members 121 and 122 (members to which the head 11 is detachably fixed) (see FIGS. 3, 4, 7, and the like). In this case, since the adjusting mechanism 50 is provided on the fixing members 121 and 122, it is not necessary to provide the adjusting mechanism 50 on the removable (replaceable) head 11, and the configuration of the head 11 is simplified and the cost is reduced. Can be planned.

固定部材１２２は、調整機構５０により、固定部材１２１に対して前後方向にスライド可能である（図３及び図４参照）。この場合、ヘッド１１間の前後方向の位置調整を実効的に実現できる。 The fixing member 122 can be slid in the front-rear direction with respect to the fixing member 121 by the adjusting mechanism 50 (see FIGS. 3 and 4). In this case, the position adjustment between the heads 11 in the front-rear direction can be effectively realized.

調整機構５０は、固定部材１２１に設けられ、前後方向に延びる長穴５１と、固定部材１２２に設けられ、長穴５１，５２に挿入された状態で前後方向にスライド可能な凸部５３，５４，５５と、を有する（図３、図４、図７等参照）。この場合、ヘッド１１間の前後方向の位置調整を、比較的簡単な構成で実現できる。 The adjusting mechanism 50 is provided in a fixing member 121 and has an elongated hole 51 extending in the front-rear direction, and a convex portion 53, 54 provided in the fixing member 122 and slidable in the front-rear direction while being inserted into the oblong holes 51 and 52. , 55 and (see FIGS. 3, 4, 7, etc.). In this case, the position adjustment between the heads 11 in the front-rear direction can be realized with a relatively simple configuration.

固定部材１２１に、２つの長穴５１，５２が、鉛直方向に互いに離隔して設けられている。固定部材１２２に、２つの長穴５１，５２のそれぞれに挿入される、２つの凸部５３，５４が設けられている。２つの凸部５３，５４のうち、一方の凸部５４は、他方の凸部５３よりも高さが低い（図８及び図９参照）。この場合、鉛直方向に互いに離隔した２つの長穴５１，５２と凸部５３，５４との組み合わせにより、位置調整を適切に行うことができる。また、凸部５４が凸部５３よりも高さが低いことで、固定部材１２２が固定部材１２１に対してスライドするときに凸部５４が周辺部材と干渉することを抑制できる。 Two elongated holes 51 and 52 are provided in the fixing member 121 so as to be separated from each other in the vertical direction. The fixing member 122 is provided with two convex portions 53 and 54, which are inserted into the two elongated holes 51 and 52, respectively. Of the two convex portions 53, 54, one convex portion 54 has a lower height than the other convex portion 53 (see FIGS. 8 and 9). In this case, the position can be adjusted appropriately by combining the two elongated holes 51, 52 and the convex portions 53, 54, which are separated from each other in the vertical direction. Further, since the height of the convex portion 54 is lower than that of the convex portion 53, it is possible to prevent the convex portion 54 from interfering with the peripheral member when the fixing member 122 slides with respect to the fixing member 121.

凸部５４が挿入された長穴５２に、別の凸部５５がさらに挿入されている（図９参照）。凸部５４は、高さが低いため、位置決め精度も低い。そこで、長穴５２に対し、凸部５４だけでなく凸部５５を設けることで、位置決め精度を補完できる。 Another convex portion 55 is further inserted into the elongated hole 52 into which the convex portion 54 is inserted (see FIG. 9). Since the convex portion 54 has a low height, the positioning accuracy is also low. Therefore, the positioning accuracy can be complemented by providing not only the convex portion 54 but also the convex portion 55 with respect to the elongated hole 52.

調整機構５０は、２つのヘッド１１それぞれのノズル領域１１Ｒが左右方向に互いに部分的に重なる位置（図２参照）に、２つのヘッド１１を配置可能に構成されている。このように調整機構５０によりヘッド１１間の前後方向の位置を調整することで、ヘッド１１毎の画像を前後方向に連続させ、前後方向に長い画像を形成することができる。 The adjustment mechanism 50 is configured so that the two heads 11 can be arranged at positions where the nozzle regions 11R of the two heads 11 partially overlap each other in the left-right direction (see FIG. 2). By adjusting the position between the heads 11 in the front-rear direction by the adjusting mechanism 50 in this way, the images of each head 11 can be made continuous in the front-rear direction, and a long image in the front-rear direction can be formed.

＜第２実施形態＞
本考案の第２実施形態に係る吐出ユニット２００は、図１０に示すように、第１実施形態に係る吐出ユニット１００（図１参照）と略同じ構成であるが、調整機構２５０が、２つのヘッド１１それぞれのノズル領域１１Ｒが左右方向に互いに一致する位置（図１１参照）に、２つのヘッド１１を配置可能に構成されている点において、第１実施形態と異なる。 <Second Embodiment>
As shown in FIG. 10, the discharge unit 200 according to the second embodiment of the present invention has substantially the same configuration as the discharge unit 100 (see FIG. 1) according to the first embodiment, but has two adjusting mechanisms 250. It differs from the first embodiment in that the two heads 11 can be arranged at positions where the nozzle regions 11R of the heads 11 coincide with each other in the left-right direction (see FIG. 11).

換言すると、２つのヘッド１１が前後方向に最も近接した位置が、第１実施形態では、２つのヘッド１１それぞれのノズル領域１１Ｒが左右方向に互いに部分的に重なる位置（図２参照）であるのに対し、第２実施形態では、２つのヘッド１１それぞれのノズル領域１１Ｒが左右方向に互いに一致する位置（図１１参照）である。 In other words, the position where the two heads 11 are closest to each other in the front-rear direction is the position where the nozzle regions 11Rs of the two heads 11 partially overlap each other in the left-right direction in the first embodiment (see FIG. 2). On the other hand, in the second embodiment, the nozzle regions 11Rs of the two heads 11 are positioned so as to coincide with each other in the left-right direction (see FIG. 11).

２つのヘッド１１が前後方向に最も離隔した位置は、第１実施形態と同様（図４〜図９参照）である。 The position where the two heads 11 are most separated from each other in the front-rear direction is the same as in the first embodiment (see FIGS. 4 to 9).

調整機構２５０は、固定部材１２１に設けられた２つの長穴２５１，２５２と、固定部材１２２に設けられた３つの凸部５３，５４，５５（第１実施形態の凸部５３，５４，５５と同じ。図１０〜図１２で凸部５５は図示略）とを含む。 The adjusting mechanism 250 includes two elongated holes 251,252 provided in the fixing member 121 and three convex portions 53, 54, 55 provided in the fixing member 122 (convex portions 53, 54, 55 of the first embodiment). In FIGS. 10 to 12, the convex portion 55 is not shown).

２つの長穴２５１，２５２は、固定部材１２１の隔壁１２１ｐに形成された貫通孔であって、それぞれ前後方向に延び、かつ、鉛直方向に互いに離隔している。 The two elongated holes 251,252 are through holes formed in the partition wall 121p of the fixing member 121, and each extends in the front-rear direction and is separated from each other in the vertical direction.

長穴２５２は、長穴２５１よりも前後方向に長く、第１部分２５２ａと、第２部分５２ｂ（図１０〜図１２では図示略。図９参照）とを含む。第１部分２５２ａは、図１２に示すように、長穴２５１と形状及びサイズが同じであり、長穴２５１と鉛直方向に重なっている。第２部分５２ｂは、図１０〜図１２では図示を省略するが、第１部分２５２ａの後端から後方に延び、鉛直方向の長さ（幅）が第１部分２５２ａよりも小さい。 The elongated hole 252 is longer in the front-rear direction than the elongated hole 251 and includes a first portion 252a and a second portion 52b (not shown in FIGS. 10 to 12; see FIG. 9). As shown in FIG. 12, the first portion 252a has the same shape and size as the elongated hole 251 and overlaps the elongated hole 251 in the vertical direction. Although not shown in FIGS. 10 to 12, the second portion 52b extends rearward from the rear end of the first portion 252a and has a length (width) in the vertical direction smaller than that of the first portion 252a.

長穴２５１（図１２参照）は、第１実施形態の長穴５１（図３参照）よりも前後方向に長い。長穴２５２の第１部分２５２ａ（図１２参照）は、第１実施形態の長穴５２の第１部分５２ａ（図３参照）よりも前後方向に長い。図１２に示すように、固定部材１２１の側壁１２１ｗ１において、長穴２５１のうち長穴５１よりも長い部分及び長穴２５２の第１部分２５２ａのうち長穴５２の第１部分５２ａよりも長い部分と左右方向に重なる位置に、切欠き２５３，３５４が形成されている。 The elongated hole 251 (see FIG. 12) is longer in the front-rear direction than the elongated hole 51 (see FIG. 3) of the first embodiment. The first portion 252a (see FIG. 12) of the elongated hole 252 is longer in the front-rear direction than the first portion 52a (see FIG. 3) of the elongated hole 52 of the first embodiment. As shown in FIG. 12, in the side wall 121w1 of the fixing member 121, a portion of the elongated hole 251 longer than the elongated hole 51 and a portion of the first portion 252a of the elongated hole 252 that is longer than the first portion 52a of the elongated hole 52. Notches 253, 354 are formed at positions overlapping in the left-right direction.

凸部５３は、長穴２５１に挿入された状態で前後方向にスライド可能である。凸部５４，５５は、長穴２５２に挿入された状態で前後方向にスライド可能である。より詳細には、凸部５４は第１部分２５２ａにおいてスライド可能であり、凸部５５は第１部分２５２ａの後端部と第２部分５２ｂとにおいてスライド可能である（図９参照）。 The convex portion 53 can slide in the front-rear direction while being inserted into the elongated hole 251. The convex portions 54 and 55 can slide in the front-rear direction while being inserted into the elongated holes 252. More specifically, the convex portion 54 is slidable in the first portion 252a, and the convex portion 55 is slidable in the rear end portion of the first portion 252a and the second portion 52b (see FIG. 9).

固定部材１２１，１２２は、前後方向に互いにスライドすることで、図１０〜図１２に示す位置（２つのヘッド１１が前後方向に最も近接した位置であり、図２に示すように２つのヘッド１１それぞれのノズル領域１１Ｒが左右方向に互いに一致する位置）と、図４〜図９に示す位置（２つのヘッド１１が前後方向に最も離隔した位置であり、図６に示すように２つのヘッド１１それぞれのノズル領域１１Ｒが前後方向に互いに離隔した位置）とを取り得る。換言すると、調整機構２５０は、２つのヘッド１１それぞれのノズル領域１１Ｒが左右方向に互いに一致する位置（図１１参照）と、２つのヘッド１１それぞれのノズル領域１１Ｒが前後方向に互いに離隔した位置（図６参照）とに、２つのヘッド１１を配置可能に構成されている。 By sliding the fixing members 121 and 122 to each other in the front-rear direction, the positions shown in FIGS. 10 to 12 (the two heads 11 are the positions closest to each other in the front-rear direction, and the two heads 11 are as shown in FIG. 2). The positions where the nozzle regions 11R coincide with each other in the left-right direction and the positions shown in FIGS. 4 to 9 (the positions where the two heads 11 are most separated in the front-rear direction, and the two heads 11 are as shown in FIG. Each nozzle region 11R can be separated from each other in the front-rear direction). In other words, the adjustment mechanism 250 has a position where the nozzle regions 11R of each of the two heads 11 coincide with each other in the left-right direction (see FIG. 11) and a position where the nozzle regions 11R of each of the two heads 11 are separated from each other in the front-rear direction (see FIG. 11). (See FIG. 6), two heads 11 can be arranged.

固定部材１２１，１２２が図１０〜図１２に示す位置（２つのヘッド１１が前後方向に最も近接した位置）にあるとき、凸部５３は長穴２５１の後端壁に接触し、凸部５５は長穴２５２の後端壁（図示略）に接触している。また、このとき凸部５３は切欠き２５３に収容されている（図１２参照）。固定部材１２１，１２２が図４〜図９に示す位置（２つのヘッド１１が前後方向に最も離隔した位置）にあるとき、凸部５３は長穴２５１の前端壁に接触し、凸部５４は長穴２５２の前端壁に接触している。このように凸部５３，５４，５５が長穴２５１，２５２の前端壁又は後端壁に接触することで、固定部材１２２の固定部材１２１に対する前後方向の移動が停止される。 When the fixing members 121 and 122 are in the positions shown in FIGS. 10 to 12 (the positions where the two heads 11 are closest to each other in the front-rear direction), the convex portion 53 contacts the rear end wall of the elongated hole 251 and the convex portion 55. Is in contact with the rear end wall (not shown) of the slot 252. Further, at this time, the convex portion 53 is housed in the notch 253 (see FIG. 12). When the fixing members 121 and 122 are in the positions shown in FIGS. 4 to 9 (the positions where the two heads 11 are most separated in the front-rear direction), the convex portion 53 contacts the front end wall of the elongated hole 251 and the convex portion 54 It is in contact with the front end wall of the slot 252. When the convex portions 53, 54, 55 come into contact with the front end wall or the rear end wall of the elongated holes 251,252 in this way, the movement of the fixing member 122 with respect to the fixing member 121 in the front-rear direction is stopped.

ここで、固定部材１２２が固定部材１２１に対して前後方向に移動する過程について説明する。先ず、固定部材１２１，１２２が図１０〜図１２に示す位置にあるとき、凸部５３が長穴２５１の後端壁に接触しかつ凸部５５が長穴２５２の後端壁（図示略）に接触することにより、固定部材１２２の後方への移動が禁止されている。この状態から、固定部材１２２を前方に移動させると、凸部５３が長穴２５１に挿入された状態で前方に移動し、凸部５４，５５が長穴２５２に挿入された状態で前方に移動する。そして、固定部材１２１，１２２が図４〜図９に示す位置に至ったときに、凸部５３が長穴２５１の前端壁に接触し、凸部５４が長穴２５２の前端壁に接触することにより、固定部材１２２の前方への移動が停止される。 Here, a process in which the fixing member 122 moves in the front-rear direction with respect to the fixing member 121 will be described. First, when the fixing members 121 and 122 are in the positions shown in FIGS. 10 to 12, the convex portion 53 contacts the rear end wall of the elongated hole 251 and the convex portion 55 is the rear end wall of the elongated hole 252 (not shown). The rearward movement of the fixing member 122 is prohibited by contacting with. When the fixing member 122 is moved forward from this state, the convex portion 53 moves forward with the convex portion 53 inserted into the elongated hole 251 and the convex portions 54 and 55 move forward with the convex portions 54 and 55 inserted into the elongated hole 252. do. Then, when the fixing members 121 and 122 reach the positions shown in FIGS. 4 to 9, the convex portion 53 contacts the front end wall of the elongated hole 251 and the convex portion 54 contacts the front end wall of the elongated hole 252. As a result, the forward movement of the fixing member 122 is stopped.

以上に述べたように、本実施形態によれば、調整機構５０は、２つのヘッド１１それぞれのノズル領域１１Ｒが左右方向に互いに一致する位置（図１１参照）に、２つのヘッド１１を配置可能に構成されている。このように調整機構５０によりヘッド１１間の前後方向の位置を調整することで、２つのヘッド１１のいずれかに吐出不良が生じた場合でも、残りのヘッド１１により吐出を行わせることで、記録動作を停止させず、続行することができる。 As described above, according to the present embodiment, the adjusting mechanism 50 can arrange the two heads 11 at positions where the nozzle regions 11R of the two heads 11 coincide with each other in the left-right direction (see FIG. 11). It is configured in. By adjusting the position between the heads 11 in the front-rear direction by the adjusting mechanism 50 in this way, even if a ejection failure occurs in either of the two heads 11, the remaining heads 11 are allowed to eject, thereby recording. The operation can be continued without stopping.

＜変形例＞
以上、本考案の好適な実施形態について説明したが、本考案は上述の実施形態に限られるものではなく、実用新案登録請求の範囲に記載した限りにおいて様々な設計変更が可能なものである。 <Modification example>
Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various design changes can be made as long as it is described in the scope of claims for utility model registration.

長穴及び凸部の数は、任意に変更可能であり、例えば長穴を３つ以上設けてもよい。また、１つの長穴に対して設けられる凸部の数は、１以上の任意の数であってよい。 The number of elongated holes and convex portions can be arbitrarily changed, and for example, three or more elongated holes may be provided. Further, the number of convex portions provided for one elongated hole may be any number of 1 or more.

調整機構は、固定部材（ヘッドが着脱可能に固定される部材）ではなく、ヘッド自体に設けられてもよい。 The adjusting mechanism may be provided on the head itself instead of the fixing member (a member on which the head is detachably fixed).

液体吐出装置に含まれるヘッドの数は、上述の実施形態では２つであるが、３つ以上であってもよい。固定部材の数も、同様に、上述の実施形態では２つであるが、３つ以上であってもよい。 The number of heads included in the liquid discharge device is two in the above-described embodiment, but may be three or more. Similarly, the number of fixing members is two in the above-described embodiment, but may be three or more.

ヘッドは、シリアル式及びライン式のいずれであってもよい。 The head may be either a serial type or a line type.

ノズルから吐出される液体は、インクに限定されず、インク以外の液体（例えば、インク中の成分を凝集又は析出させる処理液等）であってもよい。 The liquid discharged from the nozzle is not limited to the ink, and may be a liquid other than the ink (for example, a treatment liquid that aggregates or precipitates components in the ink).

記録媒体は、包材に限定されない。また、記録媒体を構成する材料は、任意の材料（プラスティック、紙、布等）であってよい。 The recording medium is not limited to the packaging material. The material constituting the recording medium may be any material (plastic, paper, cloth, etc.).

本考案は、プリンタ、ファクシミリ、コピー機、複合機等に適用可能である。また、本考案は、画像の記録以外の用途で使用される液体吐出装置（例えば、基板に導電性の液体を吐出して導電パターンを形成する液体吐出装置）にも適用可能である。 The present invention can be applied to printers, facsimiles, copiers, multifunction devices and the like. The present invention is also applicable to a liquid discharge device used for purposes other than image recording (for example, a liquid discharge device that discharges a conductive liquid onto a substrate to form a conductive pattern).

１１ ヘッド
１１ｎ ノズル
１１Ｎ ノズル面
１１Ｒ ノズル領域
１２１ 固定部材（第１固定部材）
１２２ 固定部材（第２固定部材）
５０；２５０ 調整機構
５１，５２；２５１，２５２ 長穴
５３，５４，５５ 凸部
１００；２００ 吐出ユニット（液体吐出装置）
Ｄ１ 第１方向
Ｄ２ 第２方向
Ｄ３ 第３方向 11 Head 11n Nozzle 11N Nozzle surface 11R Nozzle area 121 Fixing member (first fixing member)
122 Fixing member (second fixing member)
50; 250 Adjustment mechanism 51, 52; 251,252 Long hole 53, 54, 55 Convex part 100; 200 Discharge unit (liquid discharge device)
D1 1st direction D2 2nd direction D3 3rd direction

Claims (8)

それぞれ複数のノズルが形成されたノズル面を有する、複数のヘッドと、
前記複数のヘッド間の位置を調整可能な、調整機構と、を備え、
前記複数のヘッドは、前記複数のヘッドに対して記録媒体が相対的に移動する方向に沿った第１方向に並び、
前記調整機構は、
前記複数のヘッド間の、前記ノズル面と平行でかつ前記第１方向と直交する第２方向の位置を調整可能であり、
前記複数のヘッドそれぞれの前記ノズル面における前記複数のノズルが配置されたノズル領域が前記第２方向に互いに離隔した位置に、前記複数のヘッドを配置可能に構成されていることを特徴とする、液体吐出装置。 A plurality of heads each having a nozzle surface on which a plurality of nozzles are formed, and
An adjustment mechanism capable of adjusting the position between the plurality of heads is provided.
The plurality of heads are arranged in a first direction along the direction in which the recording medium moves relative to the plurality of heads.
The adjustment mechanism
The position between the plurality of heads in the second direction parallel to the nozzle surface and orthogonal to the first direction can be adjusted.
The nozzle region on the nozzle surface of each of the plurality of heads is configured so that the plurality of heads can be arranged at positions where the nozzle regions in which the plurality of nozzles are arranged are separated from each other in the second direction. Liquid discharge device. 前記複数のヘッドのそれぞれが着脱可能に固定された、複数の固定部材をさらに備え、
前記調整機構は、前記複数の固定部材に設けられたことを特徴とする、請求項１に記載の液体吐出装置。 Further provided with a plurality of fixing members to which each of the plurality of heads is detachably fixed.
The liquid discharge device according to claim 1, wherein the adjusting mechanism is provided on the plurality of fixing members. 前記複数の固定部材は、第１固定部材と、前記第１固定部材と前記第１方向に隣接する第２固定部材と、を含み、
前記第２固定部材は、前記調整機構により、前記第１固定部材に対して前記第２方向にスライド可能であることを特徴とする、請求項２に記載の液体吐出装置。 The plurality of fixing members include a first fixing member, the first fixing member, and a second fixing member adjacent to the first direction.
The liquid discharge device according to claim 2, wherein the second fixing member is slidable in the second direction with respect to the first fixing member by the adjusting mechanism. 前記調整機構は、
前記第１固定部材に設けられ、前記第２方向に延びる長穴と、
前記第２固定部材に設けられ、前記長穴に挿入された状態で前記第２方向にスライド可能な凸部と、を有することを特徴とする、請求項３に記載の液体吐出装置。 The adjustment mechanism
An elongated hole provided in the first fixing member and extending in the second direction,
The liquid discharge device according to claim 3, further comprising a convex portion provided on the second fixing member and slidable in the second direction while being inserted into the elongated hole. 前記第１固定部材に、２つの前記長穴が、前記ノズル面と直交する第３方向に互いに離隔して設けられ、
前記第２固定部材に、前記２つの長穴のそれぞれに挿入される、２つの前記凸部が設けられ、
前記２つの凸部のうち、一方の凸部は、他方の凸部よりも高さが低いことを特徴とする、請求項４に記載の液体吐出装置。 The first fixing member is provided with two elongated holes separated from each other in a third direction orthogonal to the nozzle surface.
The second fixing member is provided with two convex portions to be inserted into each of the two elongated holes.
The liquid discharge device according to claim 4, wherein one of the two convex portions has a lower height than the other convex portion. 前記２つの長穴のうち、前記一方の凸部が挿入された長穴に、別の前記凸部がさらに挿入されていることを特徴とする、請求項５に記載の液体吐出装置。 The liquid discharge device according to claim 5, wherein another convex portion is further inserted into an elongated hole into which one of the two elongated holes is inserted. 前記調整機構は、前記複数のヘッドそれぞれの前記ノズル領域が前記第１方向に互いに部分的に重なる位置に、前記複数のヘッドを配置可能に構成されていることを特徴とする、請求項１〜６のいずれか１項に記載の液体吐出装置。 The adjusting mechanism is characterized in that the plurality of heads can be arranged at positions where the nozzle regions of the plurality of heads partially overlap each other in the first direction. 6. The liquid discharge device according to any one of 6. 前記調整機構は、前記複数のヘッドそれぞれの前記ノズル領域が前記第１方向に互いに一致する位置に、前記複数のヘッドを配置可能に構成されていることを特徴とする、請求項１〜７のいずれか１項に記載の液体吐出装置。 The adjustment mechanism according to claim 1 to 7, wherein the plurality of heads can be arranged at positions where the nozzle regions of the plurality of heads coincide with each other in the first direction. The liquid discharge device according to any one of the following items.
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