JP6879499B2 - ink cartridge - Google Patents

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JP6879499B2
JP6879499B2 JP2016165949A JP2016165949A JP6879499B2 JP 6879499 B2 JP6879499 B2 JP 6879499B2 JP 2016165949 A JP2016165949 A JP 2016165949A JP 2016165949 A JP2016165949 A JP 2016165949A JP 6879499 B2 JP6879499 B2 JP 6879499B2
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ink
housing
ink cartridge
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ink chamber
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田口 哲也
哲也 田口
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株式会社エヌテックス
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Description

本発明は、インクジェット式プリンタに搭載されるインクカートリッジに関し、さらに詳しくは、モバイルプリンタ用インクカートリッジ等の小型インクカートリッジに関する。 The present invention relates to an ink cartridge mounted on an inkjet printer, and more particularly to a small ink cartridge such as an ink cartridge for a mobile printer.

印刷装置には、印字機構(ヘッド)から記録液であるインクを吐出して記録媒体に記録を行うインクジェット方式と呼ばれるものがある。インクジェット方式の印刷装置では、印字機構に対するインクの供給方式として、交換式インクカートリッジを着脱自在に装着し、印字機構にインク吐出口から直接インクを供給する方式が知られている。 There is a printing device called an inkjet method in which ink, which is a recording liquid, is ejected from a printing mechanism (head) to record on a recording medium. In an inkjet printing apparatus, as a method of supplying ink to a printing mechanism, a method is known in which a replaceable ink cartridge is detachably attached and ink is directly supplied to the printing mechanism from an ink ejection port.

近年、小型化の観点からインク容器内のインク室と負圧室とを分けずに、1つの室内にインクと負圧材とを収容したインクカートリッジが提案されている(例えば特許文献1)。 In recent years, from the viewpoint of miniaturization, an ink cartridge in which an ink and a negative pressure material are housed in one chamber without separating the ink chamber and the negative pressure chamber in the ink container has been proposed (for example, Patent Document 1).

特開2015−145089号公報Japanese Unexamined Patent Publication No. 2015-145089

しかしながら、上記特許文献では、吐出口の開口部と側壁との間の距離が短いため十分な負圧が形成されず、インクパスが生じやすくインク漏れを起こすという問題があった。また、負圧材を2種類使用するため、負圧材同士の間に隙間が生じないように製造を工夫しなければならないという問題があった。 However, in the above patent document, there is a problem that a sufficient negative pressure is not formed because the distance between the opening of the ejection port and the side wall is short, and an ink pass is likely to occur and ink leakage occurs. Further, since two types of negative pressure materials are used, there is a problem that the manufacturing must be devised so that no gap is generated between the negative pressure materials.

そこで、当該吐出口の側壁部周りの負圧を十分に形成する必要があり、鋭意研究した結果、本発明の完成に至った。本発明は、吐出口の開口部と側壁との間の距離が短くともインクパスを防ぐことができるインクカートリッジを提供することを目的とする。また、1つの負圧材のみでもインクパスを防ぐことができるインクカートリッジを提供することを目的とする。 Therefore, it is necessary to sufficiently form a negative pressure around the side wall portion of the discharge port, and as a result of diligent research, the present invention has been completed. An object of the present invention is to provide an ink cartridge capable of preventing an ink pass even if the distance between the opening of the ejection port and the side wall is short. Another object of the present invention is to provide an ink cartridge capable of preventing an ink pass with only one negative pressure material.

この目的は、特許請求の範囲における独立項に記載の特徴の組み合わせにより達成される。また、従属項は本発明の更なる有利な具体例を規定する。 This object is achieved by a combination of the features described in the independent clause in the claims. In addition, the dependent terms specify further advantageous specific examples of the present invention.

即ち、本発明の第1の発明は、上面と、側面と、底面とが備えられた筐体を有し、前記上面に大気口が備えられ、前記底面に吐出口が備えられ、インクを収容するインク室が前記筐体内部に備えられ、前記インク室に負圧材が収容されたインクカートリッジであって、前記底面のインク室側には長辺と短辺とが備えられ、前記底面のインク室側の前記長辺の略中間部には前記吐出口に向けて突出する突出部が設けられ、前記吐出口と前記突出部との間に距離が置かれていることを特徴とするインクカートリッジである。 That is, the first invention of the present invention has a housing provided with an upper surface, a side surface, and a bottom surface, the upper surface is provided with an atmosphere port, the bottom surface is provided with a discharge port, and ink is stored. An ink cartridge in which a negative pressure material is housed in the ink chamber, and a long side and a short side are provided on the ink chamber side of the bottom surface of the bottom surface. An ink characterized in that a projecting portion projecting toward the ejection port is provided at a substantially intermediate portion of the long side on the ink chamber side, and a distance is provided between the ejection port and the projecting portion. It is a cartridge.

本発明の第2の発明は、第1の発明に記載の前記突出部の背面側は、前記突出部の凸形状に合わせて前記筐体外部側から前記筐体内部側へ向けた凹部であることを特徴とするインクカートリッジである。 In the second aspect of the present invention, the back surface side of the protruding portion according to the first invention is a concave portion directed from the outer side of the housing to the inner side of the housing in accordance with the convex shape of the protruding portion. It is an ink cartridge characterized by this.

本発明の第3の発明は、第1の発明または第2の発明に記載の前記突出部は、前記底面から前記側面に向かって延在し、かつ前記底面から離れるにつれて前記側面に近付く形状であることを特徴とするインクカートリッジである。 A third invention of the present invention has a shape in which the protrusion according to the first invention or the second invention extends from the bottom surface toward the side surface and approaches the side surface as the distance from the bottom surface increases. It is an ink cartridge characterized by being present.

本発明の第4の発明は、第1の発明乃至第3の発明に記載の前記大気口が前記上面に設けられた連続した連通路を介して大気と連通していることを特徴とするインクカートリッジである。 A fourth invention of the present invention is an ink characterized in that the air inlet according to the first to third inventions communicates with the atmosphere through a continuous passage provided on the upper surface. It is a cartridge.

本発明の第5の発明は、上面と、側面と、底面とが備えられた筐体を有し、前記筐体内部にインクを収容するインク室が複数備えられ、前記上面に前記インク室のそれぞれに対応する大気口が複数備えられ、前記底面に前記インク室のそれぞれに対応する吐出口が複数備えられ、前記インク室のそれぞれに負圧材が収容されたインクカートリッジであって、前記底面のインク室側には長辺と短辺とが備えられ、前記底面のインク室側のそれぞれの前記長辺の略中間部には前記吐出口に向けて突出する突出部が設けられ、前記吐出口と前記突出部との間に距離が置かれていることを特徴とするインクカートリッジである。 A fifth aspect of the present invention has a housing provided with an upper surface, side surfaces, and a bottom surface, and a plurality of ink chambers for accommodating ink are provided inside the housing, and the ink chamber is provided on the upper surface. An ink cartridge having a plurality of air ports corresponding to each, having a plurality of ejection ports corresponding to each of the ink chambers on the bottom surface, and containing a negative pressure material in each of the ink chambers. The ink chamber side is provided with a long side and a short side, and a projecting portion projecting toward the ejection port is provided at a substantially intermediate portion of each of the long sides on the ink chamber side of the bottom surface. The ink cartridge is characterized in that a distance is provided between the outlet and the protruding portion.

本発明の第1の発明であるインクカートリッジは、上面と、側面と、底面とが備えられた筐体を有し、上面に大気口が備えられ、底面に吐出口が備えられ、インクを収容するインク室が筐体内部に備えられ、インク室に負圧材が収容されたインクカートリッジであって、底面のインク室側には長辺と短辺とが備えられ、底面のインク室側の長辺の略中間部には吐出口に向けて突出する突出部が設けられ、吐出口と突出部との間に距離が置かれた構成にしている。本発明は、上記の構成としているので、負圧材の吐出口付近の部分が他の部分と比較して突出部によって強く圧縮されることで、吐出口付近の負圧を強くしてインク漏れを防ぐようにすることができる。 The ink cartridge according to the first aspect of the present invention has a housing provided with a top surface, side surfaces, and a bottom surface, has an atmosphere port on the top surface, and has a discharge port on the bottom surface to store ink. This is an ink cartridge in which an ink chamber is provided inside the housing and a negative pressure material is housed in the ink chamber. The ink chamber side on the bottom surface is provided with a long side and a short side, and the ink chamber side on the bottom surface is provided. A protruding portion that protrudes toward the discharge port is provided in a substantially middle portion of the long side, and a distance is provided between the discharge port and the protruding portion. Since the present invention has the above configuration, the portion of the negative pressure material near the discharge port is compressed more strongly by the protruding portion than the other portion, so that the negative pressure near the discharge port is strengthened and ink leaks. Can be prevented.

また、本発明の第2の発明であるインクカートリッジは、突出部の背面側が、突出部の凸形状に合わせて筐体外部側から筐体内部側へ向けた凹部である構成にしている。本発明は、上記の構成としているので、突出部が厚肉にならず、筐体の成型を容易にすることができる。 Further, the ink cartridge according to the second aspect of the present invention has a configuration in which the back surface side of the protruding portion is a concave portion directed from the outer side of the housing to the inner side of the housing according to the convex shape of the protruding portion. Since the present invention has the above configuration, the protruding portion does not become thick and the housing can be easily molded.

また、本発明の第3の発明であるインクカートリッジは、突出部が、底面から側面に向かって延在し、かつ底面から離れるにつれて側面に近付く形状である構成にしている。本発明は、上記の構成としているので、底面に近いほど突出部からの圧縮を強くすることができ、より確実に吐出口付近の負圧を強くしてインク漏れを防ぐようにすることができる。 Further, the ink cartridge according to the third aspect of the present invention has a shape in which the protruding portion extends from the bottom surface toward the side surface and approaches the side surface as the distance from the bottom surface increases. Since the present invention has the above configuration, the closer to the bottom surface, the stronger the compression from the protruding portion, and the more reliably the negative pressure near the ejection port is strengthened to prevent ink leakage. ..

また、本発明の第4の発明であるインクカートリッジは、大気口が上面に設けられた連続した連通路を介して大気と連通した構成にしている。本発明は、上記の構成としているので、連通路が筐体内部への空気流入抵抗となるため、筐体内部の負圧を制御することができる。 Further, the ink cartridge according to the fourth aspect of the present invention has a structure in which the air port communicates with the atmosphere through a continuous communication passage provided on the upper surface. Since the present invention has the above configuration, the communication passage serves as an air inflow resistance into the housing, so that the negative pressure inside the housing can be controlled.

また、本発明の第5の発明であるインクカートリッジは、上面と、側面と、底面とが備えられた筐体を有し、筐体内部にインクを収容するインク室が複数備えられ、上面にインク室のそれぞれに対応する大気口が複数備えられ、底面にインク室のそれぞれに対応する吐出口が複数備えられ、インク室のそれぞれに負圧材が収容されたインクカートリッジであって、底面のインク室側のそれぞれには長辺と短辺とが備えられ、底面のインク室側のそれぞれの長辺の略中間部には吐出口に向けて突出する突出部が設けられ、吐出口と突出部との間に距離が置かれた構成にしている。本発明は、上記の構成としているので、複数色のインクを収容した場合においても、負圧材の吐出口付近の部分が他の部分と比較して突出部によって強く圧縮されることで、吐出口付近の負圧を強くしてインク漏れを防ぐようにすることができる。 Further, the ink cartridge according to the fifth aspect of the present invention has a housing provided with an upper surface, side surfaces, and a bottom surface, and a plurality of ink chambers for accommodating ink are provided inside the housing, and the upper surface thereof is provided with a plurality of ink chambers. An ink cartridge having a plurality of air outlets corresponding to each of the ink chambers, a plurality of ejection ports corresponding to each of the ink chambers on the bottom surface, and a negative pressure material stored in each of the ink chambers. Each of the ink chamber side is provided with a long side and a short side, and a projecting portion that protrudes toward the ejection port is provided at a substantially intermediate portion of each long side of the ink chamber side of the bottom surface, and the ejection port and the projecting portion are provided. The structure is such that there is a distance from the part. Since the present invention has the above configuration, even when inks of a plurality of colors are stored, the portion near the ejection port of the negative pressure material is strongly compressed by the protruding portion as compared with other portions, so that the ink is discharged. The negative pressure near the outlet can be increased to prevent ink leakage.

本発明の1実施形態におけるインクカートリッジである。This is an ink cartridge according to an embodiment of the present invention. 図1のインクカートリッジを分解した状態の図である。It is the figure of the state in which the ink cartridge of FIG. 1 was disassembled. 本発明の他の実施形態におけるインクカートリッジを分解した図である。It is a disassembled figure of the ink cartridge in another embodiment of this invention. 図3のインクカートリッジの筐体内部を示した図である。It is a figure which showed the inside of the case of the ink cartridge of FIG.

本発明の1実施形態について図面を参照して説明するが、本発明はこの事例に限られるものではなく、適宜選択が可能である。 An embodiment of the present invention will be described with reference to the drawings, but the present invention is not limited to this case, and can be appropriately selected.

図1及び図2に示すように、本実施形態のインクカートリッジ1は、上面3と、側面4と、底面5とが備えられた筐体2を有し、上面3に大気口7が備えられ、底面5に吐出口6が備えられ、インクを収容するインク室10が筐体2内部に備えられ、インク室10に負圧材11が収容されたインクカートリッジ1であって、底面5のインク室10側には長辺と短辺とが備えられ、底面5のインク室10側の長辺の略中間部には吐出口6に向けて突出する突出部12が設けられ、吐出口6と突出部12との間に距離が置かれた構成にしている。 As shown in FIGS. 1 and 2, the ink cartridge 1 of the present embodiment has a housing 2 provided with a top surface 3, a side surface 4, and a bottom surface 5, and the top surface 3 is provided with an atmosphere port 7. An ink cartridge 1 having an ejection port 6 on the bottom surface 5 and an ink chamber 10 for accommodating ink inside the housing 2, and an ink cartridge 1 in which the negative pressure material 11 is accommodated in the ink chamber 10, is the ink on the bottom surface 5. A long side and a short side are provided on the chamber 10 side, and a protruding portion 12 projecting toward the ejection port 6 is provided at a substantially intermediate portion of the long side on the ink chamber 10 side of the bottom surface 5, and the ejection port 6 and the ejection port 6 are provided. The structure is such that a distance is provided between the protrusion 12 and the protrusion 12.

図2に示すように、負圧材11は例えばスポンジ等の液体吸収体であり、圧縮された状態でインク室10の内面に全面が密着するように収容される。この時、圧縮された負圧材11の細孔が小さくなることで吸引力が高くなるので、インクをインクカートリッジ1の内部に貯留することができるようになる。 As shown in FIG. 2, the negative pressure material 11 is a liquid absorber such as a sponge, and is housed in a compressed state so that the entire surface is in close contact with the inner surface of the ink chamber 10. At this time, since the pores of the compressed negative pressure material 11 become smaller and the suction force becomes higher, the ink can be stored inside the ink cartridge 1.

インク室10側の底面5の長辺の略中央部には吐出口6に向けて突出する突出部12が設けられ、突出部12は底面5の長辺の略中央部以外の部分よりも吐出口6側へ突出しているため、負圧材11がインク室10に収容されたときに略中央部以外の部分と比較して略中央部が強く圧縮される。この圧縮によって吐出口6付近の負圧材11の吸引力をより強くすることができるので、吐出口6の開口部と筐体2内部側の側面4との間の距離が短くともインクパスを防ぐことができる。また、吐出口6の近傍にコンタクトフィルタ等を新たに設けなくとも1つの負圧材11で適切な負圧を得ることができる。 A protruding portion 12 projecting toward the ejection port 6 is provided at a substantially central portion of the long side of the bottom surface 5 on the ink chamber 10 side, and the protruding portion 12 discharges more than a portion other than the substantially central portion of the long side of the bottom surface 5. Since it protrudes toward the outlet 6, when the negative pressure material 11 is housed in the ink chamber 10, the substantially central portion is strongly compressed as compared with the portion other than the substantially central portion. Since the suction force of the negative pressure material 11 near the discharge port 6 can be further strengthened by this compression, the ink path is prevented even if the distance between the opening of the discharge port 6 and the side surface 4 on the inner side of the housing 2 is short. be able to. Further, an appropriate negative pressure can be obtained with one negative pressure material 11 without newly providing a contact filter or the like in the vicinity of the discharge port 6.

この時、突出部12と吐出口6とは接しない位置に設けることが望ましく、この位置にすることで負圧材11と底面5とを密着させ、吐出口6付近の負圧を確保してインク漏れを防ぐようにすることができる。 At this time, it is desirable to provide the protruding portion 12 at a position where it does not come into contact with the discharge port 6, and by setting this position, the negative pressure material 11 and the bottom surface 5 are brought into close contact with each other to secure a negative pressure near the discharge port 6. It is possible to prevent ink leakage.

また、突出部12は底面5から側面4に向かって延在し、かつ底面5から離れるにつれて側面4に近付く形状になっている。突出部12をこの形状にすることで、底面5に近いほど負圧材11の圧縮を強くし、安定した負圧を得ることができる。 Further, the protruding portion 12 extends from the bottom surface 5 toward the side surface 4, and has a shape that approaches the side surface 4 as the distance from the bottom surface 5 increases. By forming the protruding portion 12 into this shape, the closer to the bottom surface 5, the stronger the compression of the negative pressure material 11, and a stable negative pressure can be obtained.

なお、突出部12の背面側は、突出部12の凸形状に合わせて筐体2外部側から筐体2内部側へ向けた凹部13としても良い。この形状にすることで突出部12が厚肉にならず、筐体2の成型を容易にすることができる。 The back surface side of the protruding portion 12 may be a concave portion 13 directed from the outer side of the housing 2 to the inner side of the housing 2 according to the convex shape of the protruding portion 12. With this shape, the protruding portion 12 does not become thick, and the housing 2 can be easily molded.

図2に示すように、上面3には筐体2外部側から筐体2内部側へと貫通する大気口7が設けられ、上面3の筐体2外部側に設けられた連通路8の一方と連通することでインクカートリッジ1の外部からインク室10へ空気を流入させ、吐出口6からのインクの吐出に伴う空気の導入を行うことができる。 As shown in FIG. 2, the upper surface 3 is provided with an air port 7 penetrating from the outer side of the housing 2 to the inner side of the housing 2, and one of the communication passages 8 provided on the outer side of the housing 2 on the upper surface 3. By communicating with the ink cartridge 1, air can flow into the ink chamber 10 from the outside of the ink cartridge 1, and air can be introduced as the ink is ejected from the ejection port 6.

インク室10内部へ負圧材11を収容し上面2及び側面3を溶着して筐体2とした後、連通路8の他方を除いた部分及び大気口7をシール等で密閉することで空気流入抵抗を設定することができる。このとき、インク室10への空気の流入が多いとインクの吐出量が多過ぎる、もしくはインク漏れとなるため、連通路8を細長くする等、空気流入に対する抵抗を適宜設定することが望ましい。 After accommodating the negative pressure material 11 inside the ink chamber 10 and welding the upper surface 2 and the side surface 3 to form the housing 2, air is sealed by sealing the portion of the communication passage 8 excluding the other and the air port 7 with a seal or the like. The inflow resistance can be set. At this time, if the inflow of air into the ink chamber 10 is large, the amount of ink ejected is too large or ink leaks. Therefore, it is desirable to appropriately set the resistance to the inflow of air, such as by making the communication passage 8 elongated.

図1及び図2に示すように、インクカートリッジ1をプリンタ(図示せず)に装着する際は、係合部15をプリンタ側係合部(図示せず)に係合し、係止部16にプリンタ側係止部(図示せず)を係止させることで装着が行われる構成になっている。そして、装着と同時に、側面4に設けられた回路基板設置部14にセットされた回路基板9とプリンタ側回路基板(図示せず)とが電気的に接続され、インクカートリッジ1とプリンタとの間で通信が行われ、印刷等の各種制御が行われるようになる。 As shown in FIGS. 1 and 2, when the ink cartridge 1 is mounted on the printer (not shown), the engaging portion 15 is engaged with the printer-side engaging portion (not shown), and the locking portion 16 is engaged. The printer is mounted by locking a locking portion (not shown) on the printer side. Then, at the same time as mounting, the circuit board 9 set in the circuit board installation portion 14 provided on the side surface 4 and the printer side circuit board (not shown) are electrically connected, and between the ink cartridge 1 and the printer. Communication is performed with, and various controls such as printing are performed.

図3及び図4に示すように、本実施形態のインクカートリッジ1は、上面3と、側面4と、底面5とが備えられた筐体2を有し、筐体2内部にインクを収容するインク室10が複数備えられ、上面3にインク室10のそれぞれに対応する大気口7が複数備えられ、底面5にインク室10のそれぞれに対応する吐出口6が複数備えられ、インク室10のそれぞれに負圧材11が収容されたインクカートリッジ1であって、底面5のインク室10側のそれぞれには長辺と短辺とが備えられ、底面5のインク室10側の長辺の略中間部には吐出口6に向けて突出する突出部12が設けられ、吐出口6と突出部12との間に距離が置かれた構成にしている。 As shown in FIGS. 3 and 4, the ink cartridge 1 of the present embodiment has a housing 2 provided with a top surface 3, a side surface 4, and a bottom surface 5, and stores ink inside the housing 2. A plurality of ink chambers 10 are provided, a plurality of atmosphere ports 7 corresponding to each of the ink chambers 10 are provided on the upper surface 3, and a plurality of ejection ports 6 corresponding to each of the ink chambers 10 are provided on the bottom surface 5. An ink cartridge 1 in which a negative pressure material 11 is housed, each of which is provided with a long side and a short side on the ink chamber 10 side of the bottom surface 5, and is an abbreviation for the long side of the ink chamber 10 side of the bottom surface 5. A projecting portion 12 projecting toward the discharge port 6 is provided in the intermediate portion, and a distance is provided between the discharge port 6 and the projecting portion 12.

本実施形態のインクカートリッジ1は、複数色のインクを吐出できるように複数のインク室10及び複数の吐出口6を備えたものである。この形態においても、負圧材11の吐出口6付近の部分が他の部分と比較して突出部12によって強く圧縮されることで、吐出口6付近の負圧を強くしてインク漏れを防ぐようにすることができる。 The ink cartridge 1 of the present embodiment is provided with a plurality of ink chambers 10 and a plurality of ejection ports 6 so that inks of a plurality of colors can be ejected. Also in this form, the portion of the negative pressure material 11 near the discharge port 6 is compressed more strongly by the protruding portion 12 than the other portions, so that the negative pressure near the discharge port 6 is strengthened to prevent ink leakage. Can be done.

1…インクカートリッジ
2…筐体
3…上面
4…側面
5…底面
6…吐出口
7…大気口
8…連通路
9…回路基板
10…インク室
11…負圧材
12…突出部
13…凹部
14…回路基板設置部
15…係合部
16…係止部





1 ... Ink cartridge 2 ... Housing 3 ... Top surface 4 ... Side surface 5 ... Bottom surface 6 ... Discharge port 7 ... Atmosphere port 8 ... Communication passage 9 ... Circuit board 10 ... Ink chamber 11 ... Negative pressure material 12 ... Protruding part 13 ... Recessed part 14 ... Circuit board installation part 15 ... Engagement part 16 ... Locking part





Claims (4)

上面と、側面と、底面とが備えられた筐体を有し、前記上面に大気口が備えられ、前記底面に吐出口が備えられ、インクを収容するインク室が前記筐体内部に備えられ、前記インク室に負圧材が収容されたインクカートリッジであって、
前記底面の前記インク室側には長辺と短辺とが備えられ、前記底面の前記インク室側の前記長辺の略中間部には前記吐出口に向けて突出する突出部が設けられ、前記吐出口と前記突出部との間に距離が置かれており、
前記突出部の背面側は、前記突出部の凸形状に合わせて前記筐体外部側から前記筐体内部側へ向けた凹部であることを特徴とするインクカートリッジ。
It has a housing provided with an upper surface, a side surface, and a bottom surface, the upper surface is provided with an air port, the bottom surface is provided with a discharge port, and an ink chamber for accommodating ink is provided inside the housing. , An ink cartridge in which a negative pressure material is housed in the ink chamber.
The ink chamber side of the bottom surface is provided with a long side and a short side, and a projecting portion projecting toward the ejection port is provided at a substantially intermediate portion of the long side of the ink chamber side of the bottom surface. There is a distance between the discharge port and the protrusion .
An ink cartridge characterized in that the back surface side of the protruding portion is a concave portion directed from the outer side of the housing to the inner side of the housing in accordance with the convex shape of the protruding portion.
上面と、側面と、底面とが備えられた筐体を有し、前記上面に大気口が備えられ、前記底面に吐出口が備えられ、インクを収容するインク室が前記筐体内部に備えられ、前記インク室に負圧材が収容されたインクカートリッジであって、
前記底面の前記インク室側には長辺と短辺とが備えられ、前記底面の前記インク室側の前記長辺の略中間部には前記吐出口に向けて突出する突出部が設けられ、前記吐出口と前記突出部との間に距離が置かれており、
前記突出部は、前記底面から前記側面に向かって延在し、かつ前記底面から離れるにつれて前記側面に近付く形状であることを特徴とするインクカートリッジ。
It has a housing provided with an upper surface, a side surface, and a bottom surface, the upper surface is provided with an air port, the bottom surface is provided with a discharge port, and an ink chamber for accommodating ink is provided inside the housing. , An ink cartridge in which a negative pressure material is housed in the ink chamber.
The ink chamber side of the bottom surface is provided with a long side and a short side, and a projecting portion projecting toward the ejection port is provided at a substantially intermediate portion of the long side of the ink chamber side of the bottom surface. There is a distance between the discharge port and the protrusion .
An ink cartridge characterized in that the protruding portion extends from the bottom surface toward the side surface and approaches the side surface as the distance from the bottom surface increases.
上面と、側面と、底面とが備えられた筐体を有し、前記筐体内部にインクを収容するインク室が複数備えられ、前記上面に前記インク室のそれぞれに対応する大気口が複数備えられ、前記底面に前記インク室のそれぞれに対応する吐出口が複数備えられ、前記インク室のそれぞれに負圧材が収容されたインクカートリッジであって、
前記底面の前記インク室側のそれぞれには長辺と短辺とが備えられ、前記底面の前記インク室側のそれぞれの前記長辺の略中間部には前記吐出口に向けて突出する突出部が設けられ、前記吐出口と前記突出部との間に距離が置かれており、
前記突出部の背面側は、前記突出部の凸形状に合わせて前記筐体外部側から前記筐体内部側へ向けた凹部であることを特徴とするインクカートリッジ。
It has a housing provided with an upper surface, a side surface, and a bottom surface, and a plurality of ink chambers for accommodating ink are provided inside the housing, and a plurality of air ports corresponding to each of the ink chambers are provided on the upper surface. An ink cartridge having a plurality of ejection ports corresponding to each of the ink chambers on the bottom surface and containing a negative pressure material in each of the ink chambers.
A long side and a short side are provided on each of the ink chamber sides of the bottom surface, and a projecting portion projecting toward the ejection port is provided at a substantially intermediate portion of each of the long sides on the ink chamber side of the bottom surface. Is provided, and a distance is provided between the discharge port and the protrusion .
An ink cartridge characterized in that the back surface side of the protruding portion is a concave portion directed from the outer side of the housing to the inner side of the housing in accordance with the convex shape of the protruding portion.
上面と、側面と、底面とが備えられた筐体を有し、前記筐体内部にインクを収容するインク室が複数備えられ、前記上面に前記インク室のそれぞれに対応する大気口が複数備えられ、前記底面に前記インク室のそれぞれに対応する吐出口が複数備えられ、前記インク室のそれぞれに負圧材が収容されたインクカートリッジであって、
前記底面の前記インク室側のそれぞれには長辺と短辺とが備えられ、前記底面の前記インク室側のそれぞれの前記長辺の略中間部には前記吐出口に向けて突出する突出部が設けられ、前記吐出口と前記突出部との間に距離が置かれており、
前記突出部は、前記底面から前記側面に向かって延在し、かつ前記底面から離れるにつれて前記側面に近付く形状であることを特徴とするインクカートリッジ。
It has a housing provided with an upper surface, a side surface, and a bottom surface, and a plurality of ink chambers for accommodating ink are provided inside the housing, and a plurality of air ports corresponding to each of the ink chambers are provided on the upper surface. An ink cartridge having a plurality of ejection ports corresponding to each of the ink chambers on the bottom surface and containing a negative pressure material in each of the ink chambers.
A long side and a short side are provided on each of the ink chamber sides of the bottom surface, and a projecting portion projecting toward the ejection port is provided at a substantially intermediate portion of each of the long sides on the ink chamber side of the bottom surface. Is provided, and a distance is provided between the discharge port and the protrusion .
An ink cartridge characterized in that the protruding portion extends from the bottom surface toward the side surface and approaches the side surface as the distance from the bottom surface increases.
JP2016165949A 2016-08-26 2016-08-26 ink cartridge Active JP6879499B2 (en)

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