KR101790653B1 - Liquid pack and fabrication method the same, ink catridge and printer with the same - Google Patents

Liquid pack and fabrication method the same, ink catridge and printer with the same Download PDF

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Publication number
KR101790653B1
KR101790653B1 KR1020150117799A KR20150117799A KR101790653B1 KR 101790653 B1 KR101790653 B1 KR 101790653B1 KR 1020150117799 A KR1020150117799 A KR 1020150117799A KR 20150117799 A KR20150117799 A KR 20150117799A KR 101790653 B1 KR101790653 B1 KR 101790653B1
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KR
South Korea
Prior art keywords
ink
liquid
housing
main body
pack
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Application number
KR1020150117799A
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Korean (ko)
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KR20170022603A (en
Inventor
송진철
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송진철
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Priority to KR1020150117799A priority Critical patent/KR101790653B1/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
    • 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
    • B41J2/17513—Inner structure
    • 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
    • B41J2/17536—Protection of cartridges or parts thereof, e.g. tape
    • B41J2/1754—Protection of cartridges or parts thereof, e.g. tape with means attached to the cartridge, e.g. protective cap

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  • Ink Jet (AREA)

Abstract

A liquid pack, a manufacturing method thereof, and an ink cartridge and a printer having the same are disclosed. The liquid pack according to the exemplary embodiment includes a liquid pack main body which is provided with a liquid therein and sealed, a liquid discharging portion which is provided in the liquid pack main body and through which the liquid is discharged to the outside, And a liquid injecting part which is spaced apart and is used to inject liquid into the liquid pack main body and take out the air in the liquid pack main body and to seal the inside of the liquid pack main body.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a liquid pack, a method of manufacturing the same, and an ink cartridge and a printer having the same.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid supply technique, and more particularly, to a liquid pack, a manufacturing method thereof, and an ink cartridge and a printer having the same.

Generally, a printer receives ink from an ink cartridge mounted on the printer and performs printing. The ink cartridge may include a case and an ink pack housed in the case. The ink pack is filled with liquid ink according to the capacity of the ink pack. After the ink pack is filled with ink, the air existing in the ink pack is taken out.

Conventionally, a method of injecting ink through an ink discharging portion provided at the front end of the ink pack, closing the ink discharging portion with a stopper, and then injecting the injection needle into a cap to remove air inside the ink pack has been used. In this case, a fine passage due to the injection needle remains in the cap inside the ink discharge portion, and there is a problem that ink leaks through the fine passage.

On the other hand, there is a problem in that when the air present in the ink pack is taken out, the air present in the ink pack can not be completely removed. That is, ink is not present only in the ink pack, but a certain amount of air (air bubbles) remains. When air remains in the ink pack, residual air is output together with the ink when the ink is output from the ink pack, thereby damaging the print head or deteriorating the print quality.

Korean Unexamined Patent Application Publication No. 10-2006-0119272 (November 24, 2006)

An embodiment of the present invention is to provide a liquid pack capable of preventing ink from leaking out of the liquid pack, a manufacturing method thereof, and an ink cartridge and a printer having the same.

An embodiment of the present invention is to provide a liquid pack which can prevent gas from being discharged from the liquid pack, a manufacturing method thereof, and an ink cartridge and a printer having the same.

A liquid pack according to an exemplary embodiment includes: a liquid pack main body having a liquid therein and sealed; A liquid discharge portion provided in the liquid pack main body and discharging the liquid to the outside; And a liquid injecting unit spaced apart from the liquid discharging unit in the liquid pack main body and used for injecting the liquid into the liquid pack main body to take out the air in the liquid pack main body and being hermetically sealed.

The liquid injecting unit may include a first housing part having an interior space and provided with a seating part at one end; A second housing part connected to the other end of the first housing part, the second housing part being hollow inside; A first plug portion inserted into the first housing portion to be seated in the seating portion and to seal the inside of the first housing portion; And a second plug portion inserted into the second housing portion and sealing the inside of the second housing portion.

The interior of the first housing portion may have a first cross sectional area and the interior of the second housing portion may have a second cross sectional area that is greater than the first cross sectional area.

And an inner cross-sectional area of the first housing part may be greater than an inner cross-sectional area of the liquid discharge part.

A step may be provided between the first housing part and the second housing part.

The liquid injecting unit may further include an abutment portion which is provided in the second housing portion and is sealed and sealed to a rim of the liquid pack main body.

Wherein the second stopper portion is made of an elastic material and the other end of the second housing portion is provided with a stopper portion to which the other end of the second stopper portion is engaged and one end of the second stopper portion presses the first stopper portion, The stopper portion and the second stopper portion may be in close contact with each other.

The liquid pack may further include a gas filtering part connected to the liquid discharging part in the liquid pack main body and configured to allow liquid in the liquid pack main body to pass therethrough and not to allow gas in the liquid pack main body to pass therethrough.

A method of manufacturing a liquid pack according to an exemplary embodiment includes the steps of bonding and sealing a liquid discharge portion and a liquid injection portion to a liquid pack body, respectively; Injecting a liquid into the liquid pack body through the liquid injecting unit; Closing the first housing part by inserting a first stopper part into the first housing part of the liquid injecting part; Injecting a syringe through the first stopper to take out air in the liquid pack body; And inserting a second stopper portion into the second housing portion of the liquid injecting portion to seal the second housing portion.

And injecting a gas other than the air into the liquid pack body after the air is taken out.

And an inner cross-sectional area of the first housing part may be greater than an inner cross-sectional area of the liquid discharge part.

An ink cartridge according to an exemplary embodiment is an ink cartridge mounted on a printer and supplying ink to the printer, the ink cartridge comprising: an ink pack body provided inside and sealed with ink; An ink ejection unit ejected to the printer; And an ink injecting portion provided in the ink pack body so as to be spaced apart from the ink discharging portion and used to inject the ink into the ink pack body to take out the air in the ink pack body, ; And a case in which the ink pack is accommodated and mounted in the printer.

According to the exemplary embodiment, by separately providing the ink discharging portion and the ink injecting portion in the ink pack body, the ink discharging portion can be used only for supplying ink to the printer, and the ink injecting and sealing can be separately performed through the ink injecting portion . Here, the ink injecting unit is double-closed through the first stopper and the second stopper, so that the ink in the ink pack main body can be prevented from flowing out. Further, by forming the internal passage of the ink injecting portion larger than the internal passage of the ink discharging portion, the ink injecting time into the ink pack main body can be shortened.

In addition, the ink in the ink pack main body is supplied to the printer through the ink discharging portion by the gas filtering portion, and the gas in the ink pack main body is prevented from flowing into the printer, thereby preventing the head of the printer from being damaged, . Particularly, even if bubbles are generated in the ink pack main body due to a temperature change or the like, bubbles can be prevented from flowing into the printer. Further, by providing the air pocket portion in the ink pack body, it is possible to provide a space in which the gas collects in the ink pack body.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an open front portion of an ink cartridge according to an exemplary embodiment; Fig.
Fig. 2 is a perspective view showing the back side of the ink cartridge according to the exemplary embodiment. Fig.
3 is a view showing the inside of the ink pack according to the exemplary embodiment
4 is a view showing the inside of an ink pack according to another exemplary embodiment
5 is a view showing a gas filtering unit according to another exemplary embodiment;
6 is a view showing a state in which the gas filtering part according to another exemplary embodiment is mounted inside the ink pack
7 is a perspective view showing an ink pack according to another exemplary embodiment;
8 is a view showing the inside of the ink pack according to still another embodiment
9 is a view illustrating a method of manufacturing an ink pack according to still another exemplary embodiment

Hereinafter, a liquid pack according to the present invention, a method for manufacturing the same, and an ink cartridge and a printer having the same will be described with reference to FIGS. 1 to 9. However, this is an exemplary embodiment only and the present invention is not limited thereto.

In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention or custom of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

The technical idea of the present invention is determined by the claims, and the following embodiments are merely a means for efficiently describing the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs.

On the other hand, directional terms such as the top, bottom, one side, the other, and the like are used in connection with the orientation of the disclosed figures. Since the elements of the embodiments of the present invention can be positioned in various orientations, directional terms are used for illustrative purposes and not limitation.

Also, the terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms may be used for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

FIG. 1 is a perspective view showing an open front side of an ink cartridge according to an exemplary embodiment, and FIG. 2 is a perspective view showing a back side of an ink cartridge according to an exemplary embodiment. Here, for the sake of convenience of explanation, the inside state of the case of the ink cartridge is shown.

Referring to Figs. 1 and 2, the ink cartridge 100 includes a case 102, an ink pack 104, and an ink amount sensing unit 106. [

The case 102 forms the appearance of the ink cartridge 100. A space S 1 in which the ink pack 104 is accommodated may be provided inside the case 102. The ink cartridge 100 can be mounted on a printer (not shown) in a state where the case 102 is erected. That is, the ink cartridge 100 can be mounted on the printer (not shown) in a state in which the case 102 is placed vertically on the paper surface (or placed in parallel with the direction of gravity). Here, the terms "vertical" and "parallel" are intended not to represent an angle but to schematically show the posture when the case 102 is mounted on a printer (not shown).

Although the case 102 is shown to have a rectangular parallelepiped shape, the shape of the case 102 is not limited thereto. The shape and structure of the case 102 may vary depending on the type and internal structure of a printer (not shown) on which the ink cartridge 100 is mounted. An ink inlet 111 may be provided on the front surface of the case 102. The case 102 may be provided with an ink amount detection groove 113 into which a part of the ink amount sensing part 106 is inserted. In the exemplary embodiment, the ink amount detecting groove 113 may be provided at the lower end of the case 102. [

The ink pack 104 is housed inside the case 102. The ink pack 104 can be fixed inside the case 102. The ink pack 104 may include an ink pack main body 121 and an ink discharging portion 123 in which ink is accommodated. The ink pack main body 121 may be made of a flexible material (e.g., a polyethylene film or the like). The ink pack main body 121 may include a metallic thin film (for example, an aluminum thin film or the like) for light shielding. The ink pack main body 121 is sealed. In the exemplary embodiment, the ink pack body 121 may be provided by joining two sheets. For example, the ink pack main body 121 may be provided such that the rims of the two sheets are joined together by thermal fusion or the like. However, the present invention is not limited to this, and the ink pack body 121 may be formed by bonding three or more sheets. The ink discharge portion 123 may be provided on one side of the ink pack body 121. The ink discharging portion 123 may be disposed corresponding to the ink inlet 111 in the case 102. The ink discharge portion 123 serves to discharge the ink inside the ink pack body 121 to a printer (not shown).

On the other hand, when the ink in the ink pack main body 121 is discharged to the printer (not shown) through the ink discharging portion 123, the ink in the ink pack main body 121 is discharged to the ink discharging portion 123 (Not shown) through the printer (not shown). A detailed description thereof will be described later.

The ink amount sensing unit 106 is provided inside the case 102. [ The ink amount sensing unit 106 senses whether or not the ink inside the ink pack 104 is below a predetermined threshold amount. The ink amount sensing portion 106 may be adhered to one side of the ink pack 104 inside the case 102. [ The ink amount sensing unit 106 may have a plate-like shape. The ink amount sensing unit 106 may include a sensing protrusion 106a protruding toward the other side of the ink pack 104. [ The detection protrusion 106a may be provided in correspondence with the ink amount detection groove 113. [ The ink contained in the ink pack 104 is consumed and the volume of the ink pack 104 is reduced so that the detection protrusion 106a gradually moves toward the ink amount detection groove 113 and becomes the ink amount detection groove 113, . When the ink in the ink pack 104 is continuously reduced, the sensing protrusion 106a protrudes out of the case 102 in the ink amount sensing recess 113 and senses the sensing protrusion 106a in the printer (not shown) It is possible to recognize whether or not the ink inside the ink pack 104 becomes a predetermined threshold amount or less.

3 is a diagram illustrating the interior of a liquid pack according to an exemplary embodiment. Here, a description will be given of an embodiment in which ink is filled in the liquid pack. That is, in the following, the liquid pack may be referred to as an ink pack. However, the present invention is not limited to this, and it goes without saying that various kinds of liquids other than ink may be filled in the liquid pack. Since the ink cartridge including the ink pack is mounted on the printer in a raised state, the ink pack is shown standing up. In other words, the upper portion of the sheet in Fig. 3 is a portion having a higher height and the lower portion is a portion having a lower height.

3, the ink pack 104 may include an ink pack body 121, an ink discharging portion 123, a gas filtering portion 125, and a connecting portion 127.

The ink pack main body 121 accommodates the ink I therein. In an exemplary embodiment, the ink pack main body 121 may be formed by joining the two sheets of sheet with the edges of the two sheets in the opposite state. The ink I is accommodated in the space between the two sheets. Hereinafter, a region where the rim of the ink pack body 121 is bonded may be referred to as a "basic bonding region A ". Although all of the edges of the ink pack main body 121 are shown as being "basic bonding area A ", the present invention is not limited thereto. The" basic bonding area A " That is, not all the edges of the ink pack main body 121 are necessarily bonded, and at least one rim may be provided by folding one sheet.

In an exemplary embodiment, the ink pack body 121 may include an additional bonding area B in addition to the basic bonding area A. [ The additional joint region B may be provided extending from the lower edge of the ink pack main body 121. [ The additional bonding region B may be provided such that a part of the basic bonding region A provided on the lower edge of the ink pack main body 121 extends upward. The additional junction area B may be provided at a predetermined distance from the front end side of the ink pack main body 121 (i.e., the side where the ink discharging portion 123 is provided). In this case, a predetermined space S 2 is provided between the lower end of the front end of the ink pack body 121 and the additional bonding region B. Here, the space S 2 becomes a space in which the ink is collected in the ink pack body 121. In other words, since the ink pack main body 121 is in a raised state, ink in the ink pack main body 121 is collected in the space S2. However, the position at which the additional junction region B is formed is not limited thereto. For example, the additional bonding region B may be spaced a predetermined distance from the lower end of the front end of the ink pack main body 121 as shown in FIG. 4 and may be formed to the rear end of the ink pack main body 121.

Here, the ink pack main body 121 is described as being composed of two sheets. However, the present invention is not limited to this, and it is needless to say that the ink pack main body 121 may be formed by bonding other numbers of sheets. For example, in order to increase the volume of the ink pack body 121, an additional sheet may be used on at least one of the upper side, the lower side, the left side, and the right side of the ink pack body 121.

The ink discharge portion 123 may be provided on the front end side of the ink pack main body 121. The ink discharging portion 123 can be sealed in a state in which a part of the ink discharging portion 123 is inserted into the ink pack main body 121. An ink passage 123a formed through the ink discharge portion 123 may be provided in the ink discharge portion 123. [ The ink I accommodated in the ink pack main body 121 can be supplied to the printer (not shown) through the ink passage 123a. A stopper (not shown) may be inserted into the inner space of the ink discharge portion 123. Here, a needle (not shown) connected to a printer (not shown) is injected into a cap (not shown) so that the ink I in the ink pack main body 121 can be supplied to a printer (not shown).

The gas filtering part 125 is provided inside the ink pack main body 121. The gas filtering part 125 may be connected to the ink discharging part 123 through a connecting part 127. In this case, the ink I in the ink pack main body 121 is supplied to the printer (not shown) through the ink discharging portion 123 through the gas filtering portion 125. The gas filtration section 125 does not discharge the gas in the ink pack main body 121 through the ink discharge section 123 when the ink I in the ink pack main body 121 is discharged through the ink discharge section 123 .

The gas filtering part 125 may include a housing part 125a and a filter part 125b. The housing part 125a may be provided in an empty form. The housing part 125a may be provided in the shape of an empty cylinder, an elliptical column or a polygonal column, but the present invention is not limited thereto. One end of the housing part 125a may be connected to the connection part 127. [ However, the present invention is not limited thereto, and the housing part 125a may be directly connected to the ink discharge part 123 without the connection part 127. [ That is, in the present invention, the gas filtering part 125 is connected to the ink discharging part 123 as well as being connected to the ink discharging part 123 as well as being connected via the connecting part 127. The connection portion 127 may be formed integrally with the housing portion 125a and connected to the ink discharge portion 123. [

The filter portion 125b may be provided at the other end of the housing portion 125a. That is, the filter unit 125b may be provided at an inlet through which ink (I) in the ink pack body 121 flows into the gas filtering unit 125. The other end of the housing part 125a may be opened. The filter portion 125b may be provided to cover the other open end of the housing portion 125a. However, the present invention is not limited thereto, and the filter portion 125b may be provided across the inner space of the housing portion 125a. That is, the filter unit 125b may be provided on a path through which the ink flows into the housing unit 125a.

The filter portion 125b may be provided so as to allow the ink I in the ink pack body 121 to pass therethrough and the gas (i.e., bubble) to pass therethrough. In an exemplary embodiment, the filter portion 125b may comprise a defoaming means. That is, the filter portion 125b may be formed by a means for blowing air bubbles in the ink pack body 121. [ For example, the filter unit 125b may be formed of a mesh. At this time, a space (i.e., a hole) between the meshes may be provided so that the ink I in the ink pack main body 121 is allowed to pass through and the gas (that is, bubbles) can not pass. However, the present invention is not limited thereto, and the filter unit 125b may be formed by various other means of defoaming.

When printing is performed in a printer (not shown), ink in the ink pack 104 is supplied to a printer (not shown) depending on a difference in atmospheric pressure. Specifically, the ink I in the ink pack body 121 passes through the filter portion 125b, the housing portion 125a, the connecting portion 127, and the ink discharging portion 123 sequentially to the printer (not shown) . On the other hand, the gas (bubble) in the ink pack main body 121 is blown by the mesh of the filter portion 125b and can not pass through the filter portion 125b. At this time, the gas moves upward in the ink pack main body 121.

As described above, the ink I in the ink pack main body 121 is supplied to the printer (not shown) through the ink discharging portion 123 by the gas filtering portion 125, (Not shown), it is possible to prevent the head of the printer (not shown) from being damaged, and to prevent the printing quality from being lowered. In particular, even if bubbles are generated in the ink pack main body 121 due to a temperature change or the like, bubbles can be prevented from entering the printer (not shown).

The gas filtration section 125 is disposed in the space S 2 between the lower end side of the front end of the ink pack body 121 and the additional bonding region B in the interior of the ink pack body 121 . Even if the ink I of the ink pack main body 121 continues to be consumed because the ink pack 104 is standing up when the ink cartridge 100 is mounted on the printer (not shown) The ink I remains in the space S 2 between the lower end of the front end and the additional bonding region B. [ Therefore, the bubbles in the ink pack body 121 can not be passed by the gas filtering part 125 even when the ink I in the ink pack body 121 becomes a predetermined threshold amount or less, City).

Although the gas filtering part 125 is illustrated as being located in the space S 2 between the lower end of the front end of the ink pack body 121 and the additional bonding area B, the present invention is not limited thereto. The gas filtering part 125 may be located at a height corresponding to the ink discharging part 123 in the ink pack main body 121. The position of the gas filtering part 125 in the ink pack main body 121 may be a position It is preferable to arrange it so as to be equal to or less than the height of the portion 123. That is, the position of the gas filtering part 125 in the ink pack main body 121 is set at the same height as the ink discharging part 123 or lower than the ink discharging part 123 in the gravity direction with respect to the ink discharging part 123 Can be.

5 is a view showing a gas filtering unit according to another exemplary embodiment. FIG. 5A is a perspective view showing a gas filtering unit according to another exemplary embodiment, and FIG. 5B is a sectional view showing a portion A-A 'in FIG. 5A.

5, the gas filtering part 125 may include a housing part 125a, a filter part 125b, and a joint part 125c. The housing part 125a may be provided in an empty form. The upper end of the housing part 125a may be opened. The upper end of the housing part 125a may be provided in an elliptical shape. The cross-sectional area of the housing part 125a decreases from the upper end to the lower end. That is, the housing part 125a may be formed in a shape corresponding to the inner shape of the ink pack body 121. [

The filter portion 125b may be provided inside the housing portion 125a. The filter unit 125b may be provided to connect both sides of the inner surface of the housing part 125a inside the housing part 125a. The filter portion 125b may be provided by horizontally connecting both sides of the inner surface of the housing portion 125a. The end of the connection part 127 may be connected to the filter part 125b. For example, the end of the connecting portion 127 may be joined to the filter portion 125b. Here, the filter unit 125b is illustrated as being provided inside the housing unit 125a, but it is not limited thereto and may be provided at the upper end of the housing unit 125a.

The joint part 125c may be provided at one side of the housing part 125a. In addition, the joint portion 125c may be provided on the lower side of the housing portion 125a. When the gas filtering part 125 is accommodated in the ink pack main body 121, the connecting part 125c is joined to the ink pack main body 121 to fix the gas filtering part 125. [

6 is a view showing a state in which the gas filtering part according to another exemplary embodiment is mounted inside the ink pack. Here, the difference from the embodiment shown in FIG. 3 will be mainly described.

6, the gas filtering part 125 may be provided at the lower end of the front end side of the ink pack main body 121 in the ink pack main body 121. As shown in FIG. That is, the gas filtering part 125 may be provided in the space S 2 between the front end of the ink pack main body 121 and the additional bonding area B at the lower end of the front end side of the ink pack main body 121. At this time, the joining portion 125c provided at one side of the housing portion 125a may be joined to the front edge portion of the ink pack main body 121. The joining portion 125c provided at the lower side of the housing portion 125a can be joined to the lower end edge portion of the ink pack main body 121. [ As a result, the gas filtering portion 125 is fixed in the ink pack body 121. The gas filtration portion 125 can be bonded to the rim portion of the ink pack main body 121 at the same time when the rim portion of the ink pack main body 121 is joined. Although one side and the lower side of the housing part 125a are shown as being joined to the ink pack main body 121, the present invention is not limited thereto, and any one of them may be formed to be connected to the ink pack main body 121. [ Further, the other side of the housing part 125a may be joined to the additional bonding area B. [

When printing is performed in a printer (not shown), when ink in the ink pack 104 is supplied to a printer (not shown) in accordance with a difference in atmospheric pressure, ink in the ink pack 104 flows into the housing portion 125a And then supplied to the printer (not shown) through the connection part 127 and the ink discharge part 123 after passing through the filter part 125b. Therefore, the gas in the ink pack 104 can not pass through the gas filtration unit 125, and only the ink in the ink pack 104 passes through the gas filtration unit 125 and is supplied to the printer (not shown).

7 is a perspective view showing an ink pack according to another exemplary embodiment. Here, for convenience of explanation, one end of the ink pack is cut.

Referring to FIG. 7, an air pocket portion 131 may be provided in the interior of the ink pack 104. The air pocket portion 131 may be provided on the upper side of the ink pack main body 121 in the ink pack main body 121. The air pocket portion 131 may be provided along the longitudinal direction of the ink pack main body 121. One side of the air pocket part 131 may be fixed to the ink pack body 121 by being joined thereto. The air pocket portion 131 may be bent upward. For example, the air pocket portion 131 may have a semicircular shape, but the present invention is not limited thereto.

The air pocket portion 131 may be provided with a plurality of through holes 133 spaced apart from each other. The ink in the upper space of the air pocket portion 131 can be dropped to the lower portion of the air pocket portion 131 through the through hole 133. [ Here, the gas in the ink pack main body 121 may be collected in the lower space S 3 of the air pocket portion 131. That is, the ink cartridge 100 including the ink pack 104 is mounted on the printer (not shown) in a standing state, and the gas is lighter than the ink, so that the gas existing in the ink pack main body 121 is discharged into the air pocket portion 131 formed in the space S 3. At this time, the gas blown by the filter part 125b of the gas filtering part 125 also collects in the lower space S 3 of the air pocket part 131.

As described above, by providing a space in which the gas is collected by the air pocket portion 131, it is possible to further prevent the gas in the ink pack body 121 from being supplied to the printer (not shown) through the ink discharging portion 123 .

Here, although the ink pack body 121 is shown as being bonded to two sheets, the present invention is not limited to this, and the ink pack body 121 may be formed of a single sheet. At this time, any one of the upper side and the lower side of the ink pack main body 121 may be folded and the other may be joined.

8 is a view showing the inside of the ink pack according to another embodiment.

8, the ink pack 204 may include an ink pack body 221, an ink discharge portion 223, and an ink injection portion 208. [ That is, the ink pack 204 according to the exemplary embodiment may include both the ink discharge portion 223 and the ink injection portion 208. The ink pack main body 221 and the ink discharging portion 223 are the same as or similar to the configurations of the ink pack main body 121 and the ink discharging portion 123 of the other embodiments, and a detailed description thereof will be omitted. Although the gas filtration unit 125 and the connection unit 127 in the other embodiments are omitted here, the gas filtration unit 125 and the connection unit 127 may be added.

The ink injection unit 208 may be provided at the rear end side of the ink pack main body 221. [ The ink ejecting portion 223 may be provided on the front end side of the ink pack main body 221 and the ink injecting portion 208 may be provided on the rear end side of the ink pack main body 221. In this embodiment, That is, in the ink pack main body 221, the ink discharge portion 223 and the ink injection portion 208 may be provided opposite to each other. However, the mounting position of the ink injection unit 208 is not limited thereto. For example, the ink injection unit 208 may be provided at the upper end or the lower end side of the ink pack main body 221.

The ink injection portion 208 can be sealed by being joined to the rim portion of the ink pack main body 221. For example, the edge of the ink pack main body 221 and the ink injection unit 208 may be joined to each other when the edge of the ink pack main body 221 is joined. That is, in the exemplary embodiment, the ink injecting unit 208 is sealed in the ink pack main body 221, and is formed into a product. The ink injection unit 208 may be sealed inside the ink pack main body 221 so as not to be exposed to the outside.

The ink injection portion 208 may include a first housing portion 241, a second housing portion 243, a joint portion 245, a first stopper portion 247, and a second stopper portion 249. The first housing part 241 may be provided in an empty form. The interior of the first housing part 241 may be provided to have a first cross-sectional area. The first housing part 241 may have the same internal cross-sectional area along the longitudinal direction of the first housing part 241. In the exemplary embodiment, the first housing part 241 may be provided in the shape of a cylinder having an inner diameter of a first diameter, but the shape is not limited thereto. Here, the first diameter may be larger than the inner diameter of the ink discharge portion 223. In this case, the same amount of ink can be injected more quickly than when ink is injected through the ink ejection portion as in the conventional case.

The first housing part 241 may be provided at both ends thereof. At this time, a seating part 251 may be provided at one end of the first housing part 241 (that is, an end facing the inside of the ink pack main body 221). The seating part 251 may be provided in the form of a protrusion protruding inwardly from one end of the first housing part 241. At this time, the seating part 251 may protrude from a part of one end of the first housing part 241, or may protrude along the circumference of the first housing part 241. In addition, the seating portion 251 may be provided across an open end of the first housing portion 241. At this time, a part of one end of the first housing part 241 may be opened so that ink can be injected into the ink pack main body 221.

The second housing part 243 is connected to the other end of the first housing part 241. The second housing part 243 may be provided in an empty form. The interior of the second housing portion 243 may be provided to have a second cross-sectional area greater than the first cross-sectional area. The second housing part 243 may have the same internal cross-sectional area along the longitudinal direction of the second housing part 243. In an exemplary embodiment, the second housing portion 243 may be provided in the form of a cylinder having an inner diameter of a second diameter larger than the first diameter, but the shape is not limited thereto. A step 253 may be provided between the first housing part 241 and the second housing part 243 by providing the second housing part 243 larger in diameter than the first housing part 241. [ have. The second housing part 243 may be provided at both ends thereof.

The bonding portion 245 is a portion to be bonded to the rim portion of the ink pack main body 221. The joint portion 245 may protrude outwardly from the second housing portion 243. In an exemplary embodiment, the abutment 245 may be provided protruding outwardly from both sides of the second housing portion 243. The connecting portion 245 may be formed to have a narrower section from the outer peripheral surface of the second housing portion 243 toward the outer side so as to be in close contact with the rim of the ink pack main body 221. At this time, the joining portion 245 may be provided such that both side surfaces thereof are curved inward. Although the joining portion 245 is shown on the outer circumferential surface of the second housing portion 243 at the front end of the second housing portion 243, the joining portion 245 is not limited to the second housing portion 243 The second housing part 243 may be provided on the outer peripheral surface of the second housing part 243. In this case, the ink injection unit 208 is sealed to the rim of the ink pack main body 221 in a state of being located inside the ink pack main body 221 without being exposed to the outside.

The first stopper portion 247 may be housed inside the first housing portion 241. The first stopper portion 247 may be accommodated in the first housing portion 241 after the ink is injected into the ink pack main body 221 through the ink injection portion 208. The first stopper portion 247 is inserted into the first housing portion 241 and one end thereof is seated on the seat portion 251. The first stopper portion 247 may be formed in a shape corresponding to the inner space of the first housing portion 241. In an exemplary embodiment, the first stopper portion 247 may be provided in a cylindrical shape having a first diameter. The inner space of the first housing part 241 is closed by the first stopper part 247. That is, the ink injection unit 208 is primarily sealed by the first stopper 247.

The second stopper portion 249 can be received in the second housing portion 243. The second stopper portion 249 is disposed in the second housing portion 243 after the first stopper portion 247 is accommodated in the first housing portion 241 and the gas in the ink pack main body 221 is taken out Can be accommodated. The second stopper portion 249 can be received in the second housing portion 243 in a state of being in close contact with the first stopper portion 247. The second stopper portion 249 may be formed in a shape corresponding to the inner space of the second housing portion 243. In an exemplary embodiment, the second stopper portion 249 may be provided in a cylindrical shape having a second diameter. The inner space of the second housing portion 243 is closed by the second stopper portion 249. [ At this time, the ink injection unit 208 is secondarily closed by the second stopper 249. The first stopper portion 247 and the second stopper portion 249 may be made of a silicone material or a rubber material, but are not limited thereto.

The other end of the second housing part 243 may be provided with a locking part (not shown) for preventing the second stopper part 249 from being detached. The latching part (not shown) may protrude inward from the other end of the second housing part 243. When the second stopper portion 249 is made of an elastic material, the second stopper portion 249 can be inserted into the second housing portion 243 in a pressed state. At this time, when the entire second stopper portion 249 is inserted into the second housing portion 243, the second stopper portion 249 seals the inside of the second housing portion 243 by the restoring force. The other end of the second stopper portion 249 can be hooked by a stopper (not shown). Further, the other end of the second stopper portion 249 is latched by the stopper (not shown), so that one end of the second stopper portion 249 can press the first stopper portion 247. In addition, a sealing member (not shown) may be provided on the first stopper portion 247 and the second stopper portion 249.

9 is a view showing a method of manufacturing an ink pack according to still another exemplary embodiment.

9A, an ink discharging portion 223 and an ink injecting portion 208 are mounted on the ink pack main body 221, respectively. For example, the ink discharging portion 223 may be mounted on the front end of the ink pack main body 221 and the ink injecting portion 208 may be mounted on the rear end of the ink pack main body 221. At this time, the ink discharging portion 223 and the ink injecting portion 208 may be provided symmetrically with respect to the center axis of the ink pack main body 221 in the width direction. The ink discharging portion 223 and the ink injecting portion 208 may be sealed by bonding with the rim portion of the ink pack main body 221, respectively. A stopper may be inserted and fixed in the ink discharge portion 223. Here, the ink discharging portion 223 can be used only as a passage for supplying the ink in the ink pack 204 to the printer (not shown) when the ink cartridge including the ink pack 204 is mounted on the printer (not shown) have.

Next, referring to FIG. 9B, ink is injected into the ink pack main body 221 through the ink injecting section 208. Then, as shown in FIG. In other words, the ink can be injected into the ink pack main body 221 through the internal spaces of the first housing part 241 and the second housing part 243 of the ink injecting part 208. At this time, a preset amount of ink can be injected into the ink pack main body 221 according to the capacity of the ink pack main body 221. By providing the inner diameter of the first housing part 241 larger than the inner diameter of the ink discharging part 223, it is possible to quickly inject the same amount of ink as in the case of injecting ink through the conventional ink discharging part do.

9 (c), the first stopper portion 247 is inserted into the first housing portion 241 of the ink injection unit 208 to close the inside of the first housing portion 241 . At this time, the first stopper portion 247 can be inserted into the first housing portion 241. The first stopper portion 247 is seated in the seating portion 251 and fixed in the first housing portion 241. [ As the first stopper portion 247 closes the first housing portion 214, it is possible to prevent the ink I in the ink pack main body 221 from flowing out to the outside.

9 (d), the syringe 260 is inserted into the ink injection unit 208 to extract air from the ink pack main body 221. The syringe needle 260a may be injected into the ink pack main body 221 through the first stopper portion 247. [ Here, after the air in the ink pack main body 221 is taken out, a gas other than air may be injected into the ink pack main body 221.

9 (e), the second stopper portion 249 is inserted into the second housing portion 243 of the ink injection unit 208 to close the inside of the second housing portion 243 . The second stopper portion 249 can be inserted into the second housing portion 243. In FIG. 9D, the syringe needle 260a is injected through the first stopper 247, so that a fine passage formed by the needle 260a is formed in the first stopper 247. When the first stopper portion 247 is made of silicone or rubber, the micro-channel may be filled to some extent by the elasticity of the first stopper portion 247, but there is a possibility that the ink may leak to the outside through the micro- do.

Therefore, in the embodiment of the present invention, the second cap portion 249 is inserted into the second housing portion 243, thereby double-sealing the inside of the ink injection portion 208. At this time, the second stopper portion 249 can be brought into close contact with the first stopper portion 247 so that no gap or gap is generated between the first stopper portion 247 and the second stopper portion 249. For example, the second stopper portion 249 can be received while pressing the first stopper portion 247 in the second housing portion 243. In this case, even if ink leaks through the micro passageway of the first stopper portion 247, it can be prevented that the ink is leaked to the outside by the second stopper portion 249.

Particularly, since the step portion 253 is provided between the first housing portion 241 and the second housing portion 243, it is possible to effectively prevent the ink in the ink pack main body 221 from flowing out to the outside. That is, even if the ink in the ink pack main body 221 flows out through the micro passageway of the first stopper portion 247, the first stopper portion 247 and the second stopper portion 249, It is necessary to change the secondary direction at the stepped portion 253 after moving along the contact surface between the first stopper portion 247 and the second stopper portion 249, It is possible to effectively prevent the liquid from flowing out.

According to the embodiment of the present invention, the ink discharging portion 223 and the ink injecting portion 208 are separately provided in the ink pack main body 221, so that the ink discharging portion 223 can be used only for supplying ink to the printer And ink injection and sealing can be performed separately through the ink injection unit 208. [ Here, the ink injecting unit 208 is double-sealed through the first stopper 247 and the second stopper 249, thereby preventing the ink in the ink pack main body 221 from flowing out. In addition, by forming the internal passage of the ink injecting section 208 larger than the internal passage of the ink discharging section 223, the ink injecting time into the ink pack main body 221 can be shortened.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention. I will understand. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

100: ink cartridge
102: Case
104, 204: ink pack
106:
106a: Detection protrusion
111: Ink inlet
113: groove for detecting ink amount
121, 221: ink pack body
123, 223: ink ejection portion
123a: ink flow path
125: gas filtration section
125a:
125b:
125c:
127:
131: Air pocket part
133: Through hole
208:
241: first housing part
243: second housing part
245:
247: first stopper portion
249:
251:
253:

Claims (13)

1. A liquid container comprising: a liquid pack main body having a liquid therein and sealed;
A liquid discharge portion provided in the liquid pack main body and discharging the liquid to the outside; And
And a liquid injecting portion provided to be spaced apart from the liquid discharging portion in the liquid pack main body and used for injecting the liquid into the liquid pack main body and extracting air from the liquid pack main body,
The liquid injecting portion includes:
A first housing part having an inner space and provided with a seating part at one end;
A second housing part connected to the other end of the first housing part, the second housing part being hollow inside;
A first plug portion inserted into the first housing portion to be seated in the seating portion and to seal the inside of the first housing portion;
And a second stopper portion inserted into the second housing portion and sealing the inside of the second housing portion,
Wherein the second stopper portion is made of an elastic material,
And the other end of the second housing part is provided with a latching part for latching the other end of the second stopper part,
And one end of the second stopper portion presses the first stopper portion so that the first stopper portion and the second stopper portion are in close contact with each other.
delete The method according to claim 1,
Wherein the interior of the first housing portion has a first cross sectional area and the interior of the second housing portion has a second cross sectional area that is greater than the first cross sectional area.
The method of claim 3,
Sectional area of the first housing part is larger than the internal cross-sectional area of the liquid discharge part.
The method according to claim 1,
And a stepped portion is provided between the first housing portion and the second housing portion.
The method according to claim 1,
The liquid injecting portion includes:
And a junction provided in the second housing portion and sealed and sealed to a rim of the liquid pack main body.
delete The method according to claim 1,
The liquid pack
Further comprising a gas filtering part connected to the liquid discharging part inside the liquid pack main body and configured to allow liquid in the liquid pack main body to pass therethrough and gas in the liquid pack main body to not pass therethrough.
Bonding and sealing the liquid discharge portion and the liquid injection portion to the liquid pack body, respectively;
Injecting a liquid into the liquid pack body through the liquid injecting unit;
Closing the first housing part by inserting a first stopper part into the first housing part of the liquid injecting part;
Injecting a syringe through the first stopper to take out air in the liquid pack body; And
And inserting a second stopper portion into the second housing portion of the liquid injecting portion to seal the second housing portion.
The method of claim 9,
After the step of taking out the air,
Further comprising injecting a gas other than the air into the liquid pack body.
The method of claim 9,
Wherein an inner cross-sectional area of the first housing portion is larger than an inner cross-sectional area of the liquid discharge portion.
1. An ink cartridge that is mounted on a printer and supplies ink to the printer,
An ink ejecting part provided in the ink pack main body, the ink ejecting part ejecting the ink to the printer; And an ink injecting portion provided in the ink pack body so as to be spaced apart from the ink discharging portion and used to inject the ink into the ink pack body to take out the air in the ink pack body, ; And
And a case in which the ink pack is accommodated and mounted on the printer,
The ink-
A first housing part having an inner space and provided with a seating part at one end;
A second housing part connected to the other end of the first housing part, the second housing part being hollow inside;
A first plug portion inserted into the first housing portion to be seated in the seating portion and to seal the inside of the first housing portion;
And a second stopper portion inserted into the second housing portion and sealing the inside of the second housing portion,
Wherein the second stopper portion is made of an elastic material,
And the other end of the second housing part is provided with a latching part for latching the other end of the second stopper part,
And one end of the second stopper portion presses the first stopper portion so that the first stopper portion and the second stopper portion are in close contact with each other.
A printer comprising the liquid pack according to claim 1, claim 3, claim 6 or claim 8, wherein ink is contained in the liquid pack.
KR1020150117799A 2015-08-21 2015-08-21 Liquid pack and fabrication method the same, ink catridge and printer with the same KR101790653B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006062282A (en) 2004-08-30 2006-03-09 Ricoh Co Ltd Liquid storage vessel, liquid supply device, inkjet recording apparatus, and image forming apparatus
JP5700975B2 (en) 2010-08-24 2015-04-15 キヤノン株式会社 Inkjet printer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060119272A (en) 2005-05-19 2006-11-24 정영환 Cartridge case exchangable ink pack and method of exchanging ink pack using thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006062282A (en) 2004-08-30 2006-03-09 Ricoh Co Ltd Liquid storage vessel, liquid supply device, inkjet recording apparatus, and image forming apparatus
JP5700975B2 (en) 2010-08-24 2015-04-15 キヤノン株式会社 Inkjet printer

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