JP2007229929A - Pressurizing machine, pressurizing body and liquid housing container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the outflow of an adhesive to the outside of an adherend part without lowering the strength of the adherend part. <P>SOLUTION: This pressurizing body has a press part 41 for pressing the adherend part 15 wherein the adhesive is interposed between sheetlike film materials 11 and 11 to mutually bond the sheetlike film materials 11 and 11. A recessed part 43, which does not come into contact with the adherend part 15, is provided to the press part 41. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pressurizing body, a pressurizing machine, and a liquid container that press and bond sheet-like sheet-like members having an adhesive interposed therebetween.

  Conventionally, as a liquid ejecting apparatus that ejects liquid onto a target, for example, there is an ink jet printer. An ink jet printer (hereinafter referred to as a printer) includes a transport mechanism that transports a print medium, and a carriage that has ejection nozzles that eject ink. The print medium is transported by the transport mechanism, and the carriage is moved in a direction substantially perpendicular to the transport direction of the print medium by the transport mechanism. An image is output to the print medium by ejecting ink droplets from the ejection nozzle.

  Among such printers, there is a so-called off-carriage type in which an ink cartridge containing an ink pack filled with ink is attached to a cassette holder provided on the main body side of the printer. In this type of printer, a cassette holder provided on the main body side of the printer is provided with a lead-out needle connected via a supply tube to an ejection nozzle mounted on the carriage. The lead-out needle is inserted into the lead-out port of the lead-out member provided in the ink pack exposed on the surface of the ink cartridge, so that the ink in the ink pack is led out to the ejection nozzle through the supply tube. Is done.

Incidentally, the lead-out member provided in the ink pack is bonded to the bag portion of the ink pack with an adhesive. Since the lead member and the bag portion have different molding materials, it is necessary to firmly bond and fix the lead member and the bag portion so that ink does not leak from the bonding portion between the lead member and the bag portion. In this bonding method, for example, as described in Patent Document 1, an adhesive is interposed in an adhesive portion between the bag portion and the lead-out member, and a pressure member is pressed on the adhesive portion to A method has been proposed in which the lead-out member is bonded and fixed to each other. Then, the pressure surface of the pressure body is provided with a plurality of ridges protruding from the pressure surface, and is an adhesive interposed between the bag portion and the lead member between the ridges and the ridges. The adhesive sandwiched between the ridges is prevented from flowing out of the ridges.
JP-A-11-129357

  However, according to the pressure body as described above, when the bonded portion is pressed by the ridges, the adhesive previously pressed on the ridges is pressed before being pressed by the pressing surface of the pressure body. Extruded to the outside. For this reason, the amount of the adhesive interposed in the bonded portion is reduced by the amount pressed by the ridge. Therefore, the adhesion part pressed by the ridge becomes thin, and the strength of the adhesion part as a whole decreases.

  The present invention has been made in view of such conventional circumstances, and an object of the present invention is to prevent the adhesive from flowing out to the outside of the bonded portion without reducing the strength of the bonded portion. The object is to provide a pressure body, a pressurizer, and a liquid container.

  In order to achieve the above object, the first aspect of the present invention covers the portion to be bonded from one end side to the other end side of the bonded portion in which an adhesive is interposed between the sheet-like sheet-like members. A pressing body that has a pressing portion to be pressed and bonds the sheet-like members together, wherein the pressing portion allows the sheet-like member to enter and a part of the adherend is filled with an excess of the adhesive. The gist of the present invention is to provide a recess for forming the recess.

  According to this configuration, by pressing the adherend portion with the pressing portion having the recess, the recess formed in a part of the adherend portion by the recess is filled with an excess of the adhesive. Therefore, it is possible to prevent the adhesive from flowing out of the bonded portion.

In the pressurizing body described above, a configuration in which the concave portion is formed so as not to press the adherend portion can be employed.
According to this configuration, a concave portion that does not press the adherend portion is provided in the pressing portion, and a depression is positively formed in a part of the adherend portion. And the excess of adhesive was positively stored in the dent. Therefore, it is possible to prevent the adhesive from flowing out to the outside of the adherend.

In the pressurizing body described above, it is possible to adopt a configuration in which the concave portion extends along the longitudinal direction of the pressing portion.
According to this configuration, the concave portion is extended along the longitudinal direction of the pressing portion, and the concave portion is extended along the longitudinal direction of the adherend portion. And the excess part of the adhesive was filled in a wide range along the longitudinal direction of the adherend. Therefore, a thick portion filled with an adhesive is formed along the longitudinal direction of the adherend, and the sealability of the adherend can be improved without reducing the strength of the adherend.

In the pressurizing body described above, the pressing portion may employ a configuration in which the concave portion presses the adherend portion so as to form a pair with the adherend portion interposed therebetween.
According to this configuration, the pressing portion presses the adherend portion so that the concave portion forms a pair with the adherend portion interposed therebetween, so that the positions of the recesses formed in both sheet-like members coincide. Therefore, more adhesive is concentrated and filled in the position of the recess, and the sealing performance of the adherend is further improved.

In the pressurizing body described above, a configuration in which the concave portion is disposed at a substantially central portion in the width direction of the pressing portion may be employed.
According to this configuration, the concave portion is disposed in the substantially central portion in the width direction of the pressing portion, and the concave portion is formed in the central portion in the width direction of the bonded portion. And it was made to fill an adhesive with the surplus part in the substantially center part of the to-be-adhered part width direction. Therefore, surplus adhesive is filled into the recess formed in a part of the adherend from both sides in the width direction of the adherend. As a result, the adhesive is concentrated and filled in the positions of the recesses, and the sealing performance of the adherend portion is further improved.

  In order to achieve the above object, according to a second aspect of the present invention, there is provided a pressurizing body and driving means for driving the pressurizing body in a direction in which the pressurizing body presses the adherend. And a pressurizing machine characterized by comprising:

  According to this configuration, by pressing the adherend portion with the pressing portion having the recess, the recess formed in a part of the adherend portion by the recess is filled with an excess of the adhesive. Therefore, it is possible to prevent the adhesive from flowing out of the bonded portion.

  Further, in order to achieve the above object, a bag portion that is formed in a substantially bag shape and has an opening as a bonded portion bonded and sealed by the above-described pressure body and containing a liquid, and is accommodated in the bag portion. And a lead-out member for leading out the liquid from the bag portion.

  According to this configuration, by pressing the opening as the bonded portion with the pressing portion having the concave portion, the recess formed in a part of the bonded portion by the concave portion is filled with the excess adhesive. I made it. Therefore, it is possible to prevent the adhesive from flowing out of the bonded portion.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view of an ink pack 1 as a liquid container mounted in an ink jet printer (hereinafter referred to as a printer) (not shown).

As shown in FIG. 1A, the ink pack 1 includes a bag portion 10 formed in a substantially flat rectangular parallelepiped shape and a lead-out member 20 provided on one side of the bag portion 10.
As shown in FIG. 1B, the bag portion 10 of the ink pack 1 is formed of two film materials 11 and 11. The film materials 11 and 11 are formed by vapor-depositing gas barrier layers 13 and 13 such as aluminum on thermoplastic resin layers 12 and 12 such as polyethylene films. The bag portion 10 is formed by stacking two substantially rectangular film materials 11, 11 so that the thermoplastic resin layers 12, 12 face each other, and bonding the periphery thereof by a method such as heat welding. Is formed in a bag shape having an opening 14 (see FIG. 2).

  The lead-out member 20 of the ink pack 1 is formed of a resin (for example, polyethylene resin) that can be thermally welded to the thermoplastic resin layers 12 and 12 of the film materials 11 and 11 that form the bag portion 10. The lead-out member 20 is integrally formed with a base portion 21 having a substantially ship-shaped cross section whose width is narrowed toward both ends, and a substantially cylindrical lead-out portion 22 protruding from the end surface of the base portion 21. Further, a lead-out hole 23 is formed in the lead-out member 20 so as to penetrate the base portion 21 and the lead-out portion 22 of the lead-out member 20.

  The lead-out member 20 is heated by a bag welding device 30 (see FIG. 2) as a pressurizer, which will be described later, in the state where the base portion 21 of the lead-out member 20 is sandwiched between the openings 14 of the film materials 11 and 11. The bag part 10 is fixed to one side by being subjected to the crimping process. And the to-be-adhered part 15 extended along opening of the film materials 11 and 11 as shown to Fig.1 (a) by this bag welding apparatus 30 is formed, and the bag part 10 of the bag part 10 is pinched | interposed in the state which pinched | interposed the derivation | leading-out member 20 The opening 14 is closed. Further, by the bag welding device 30, a thick portion 15 a is formed along the longitudinal direction of the adherend 15 at a substantially central portion in the width direction of the adherend 15, and an airtight internal space S <b> 1 is formed in the ink pack 1. (See FIG. 1B).

  Ink is stored in the internal space S1 of the ink pack 1 and is stored in an ink cartridge (not shown). The ink cartridge containing the ink pack 1 is attached to a cassette holder provided in the printer. At this time, a lead-out needle communicating with the liquid ejecting nozzle provided on the holder side is inserted into a lead-out hole 23 provided in the lead-out portion 22 of the ink pack 1. As a result, the ink in the bag portion 10 of the ink pack 1 is supplied to the liquid ejecting nozzle and printing is performed.

Next, the bag welding apparatus 30 will be described.
As shown in FIG. 2, the bag welding device 30 includes a support table 31 and a pair of pressurizing bodies 40 and 40 disposed on the upper surface side and the lower surface side with the support table 31 interposed therebetween. The support table 31 is formed in a substantially rectangular shape, and film materials 11 and 11 formed in a substantially bag shape are placed on the upper surface thereof. A guide 32 is projected on the side surface of the support table 31, and the film materials 11 and 11 are positioned on the inner side surface 32 a of the guide 32.

  In the support table 31, a holding protrusion 33 is provided on the upper surface of the film material 11, 11 on the opening 14 side, and the lead-out member 20 is held by the holding protrusion 33. More specifically, the lead-out member 20 is held by the holding projection 33 in a state where the base portion 21 is disposed in the opening portion 14 of the film material 11, 11 formed in a bag shape.

  In the support table 31, a slit 34 is formed at a position inside the holding projection 33 and where the opening 14 of the film material 11, 11 is disposed. The slit 34 is formed so as to extend along the longitudinal direction of the opening 14 (the depth direction in FIG. 2) so as to face the opening 14 of the placed film material 11. The slit 14 exposes the opening 14 of the film material 11, 11 formed in a bag shape in which the lead-out member 20 is disposed on the lower surface side of the support table 31. And as shown in FIG. 3, the opening part 14 of the film materials 11 and 11 formed in the bag shape is pinched | interposed into the said pressurization bodies 40 and 40. As shown in FIG.

  Both the pressure bodies 40 are supported so as to be movable along a frame (not shown) extending in the vertical direction. Both pressure bodies 40, 40 are disposed at positions spaced from the support table 31, and the surfaces of the pressure bodies 40, 40 on the side facing the support table 31 have the same shape and are substantially rectangular in cross section. The press parts 41 and 41 which have a shape are protrudingly provided.

  As shown in FIGS. 4 and 5, the pressing portion 41 has a long and narrow rectangular shape when the front end surface (opposing surface 41 a) is viewed in plan (as viewed from the direction of arrow C), and the slit formed in the support table 31. 34 is formed in a size penetrating 34. When the front end surface (opposing surface 41a) is viewed in plan (when viewed from the direction of arrow C), the pressing portion 41 has an elongated rectangular shape, and the opposing surface 41a is large enough to cover the opening 14 of the film material 11, 11. Is formed. A concave surface 42 having the same outer surface shape as that of the base portion 21 of the lead-out member 20 is provided in a substantially central portion in the longitudinal direction of the facing surface 41a. That is, when the upper pressing portion 41 and the lower pressing portion 41 are overlapped with each other, the lead-out member 20 is fitted via the film materials 11 and 11 so that the outer surface of the base portion 21 of the lead-out member 20 is along. It has become so.

  Moreover, the recessed part 43 is formed in the longitudinal direction substantially central part of the opposing surface 41a along the longitudinal direction. The recess 43 is formed in a groove shape extending from one end side to the other end side of the facing surface 41a. Moreover, as shown in FIG. 6, the recessed part 43 has a substantially rectangular cross-sectional shape, and the inner side surface 43a is substantially perpendicular to the opposing surface 41a. In the present embodiment, the pressing portion 41 first has the concave surface 42 provided in the facing surface 41a, and then the concave portion 43 having a uniform depth deeper than the concave surface 42 is formed. Therefore, in the facing surface 41 a, the depth of the concave portion 43 in the concave surface 42 portion is shallower than the depth of the concave portion 43 in the portion other than the concave surface 42. Therefore, as shown in FIG. 7, when the upper pressing portion 41 and the lower pressing portion 41 are overlapped with each other, the portions of the film materials 11, 11 facing the recess 43 come into contact with the facing surface 41 a. Absent.

  Both pressing parts 41, 41 are made of stainless steel. An electric heater (not shown) is connected in the vicinity of the pressurizing bodies 40, 40, and the electric heater reaches a temperature at which the thermoplastic resin layers 12, 12 of the film material 11, 11 can be melted via the pressing portions 41, 41. It comes to heat.

  As shown in FIGS. 2 and 3, a driving unit 50 is connected to the pressure bodies 40, 40, and the pressing unit 41 is driven in a direction approaching each other by the driving unit 50. And the press parts 41 and 41 hold and press the opening part 14 of the film material 11 and 11 formed in the bag shape exposed from the slit 34 of the said support table 31 from an up-down direction.

  When forming the ink pack 1 using the bag welding apparatus 30 having such pressure bodies 40, 40, first, as shown in FIG. 2, the bag was formed on the upper surface of the support table 31 in a bag shape. The film members 11 and 11 are placed, and the lead member 20 is placed in a state where the base 21 is disposed in the opening 14. At this time, the pressing parts 41 and 41 of the pressurizing bodies 40 and 40 are already heated to a temperature at which the thermoplastic resin layers 12 and 12 (see FIG. 1B) of the film materials 11 and 11 are melted.

  Then, the driving means 50 is driven to move both the pressure bodies 40, 40 toward each other, and as shown in FIG. 3, the opening portions of the film materials 11, 11 are opened by the pressing portions 41 of the pressure bodies 40, 40. The part 14 (bonded part 15) is sandwiched. At this time, since the opposing surface 41a of the pressing parts 41 and 41 is formed in a size that covers the opening part 14 (bonded part 15) of the film material 11, 11, one end of the opening part 14 of the film material 11, 11 is formed. It is pressed while being heated from the side to the other end side. Further, since the base portion 21 of the derivation member 20 is fitted to the concave surface 42 formed on the opposing surface 41a of the pressing portion 41, the derivation member 20 sandwiched between the openings 14 of the film materials 11 and 11 is similarly heated. It is pressed while. At this time, a portion of the bonded portion 15 that is opposed to the concave portion 43 formed in the pressing portion 41 is not pressed by the pressing portion 41.

  When the opening 14 (bonded portion 15) is pressed by the heated pressing portion 41, as shown in FIG. 7, the thermoplastic resin layers 12 and 12 of the film materials 11 and 11 (see FIG. 1B). ) Is melted to form a molten resin 12 as an adhesive. At this time, since the concave portion 43 is formed at a substantially central portion in the width direction of the pressing portion 41, a part of the adherend portion 15 (film material 11, 11) facing the concave portion 43 enters the concave portion 43. Recesses 16 and 16 are formed. As a result, the surplus portion 12a of the molten resin 12 flows into the recesses 16 and 16 and is filled.

  Moreover, since the recessed part 43 is extended along the longitudinal direction of the press part 41, the said dents 16 and 16 are also formed along the longitudinal direction. Therefore, the molten resin 12 can be stored in a wide range along the longitudinal direction of the adherend portion 15.

  Then, the driving means 50 is driven in the reverse direction to separate the pressure bodies 40 and 40 from the adherend 15. Then, the adherend portion 15 is cooled by the outside air, and the adherend portion 15, that is, between the film materials 11 and 11 and the base portion 21 of the film material 11 and the lead-out member 20 are bonded and fixed to each other. At this time, as shown in FIG. 8, the thick portion 15 a is formed in the adherend portion 15 by the molten resin 12 filled in the center portion in the width direction of the adherend portion 15 (indents 16 and 16 (see FIG. 7)). The

  And as shown to Fig.1 (a), the opening part 14 of the film material 11 and 11 formed in the bag shape is obstruct | occluded by the to-be-adhered part 15 which has the thick part 15a, and the film formed in the bag shape The ink pack 1 is formed in which the lead-out member 20 is fixed to the materials 11 and 11 (bag portion 10).

As described above, according to the present embodiment, the following effects can be obtained.
(1) The concave portion 43 is formed in the longitudinal direction at a substantially central portion in the width direction of the pressing portion 41. Then, by pressing the adherend 15 with the pressing portion 41 in which the recess 43 is formed, the surplus portion 12a of the molten resin 12 is formed in the recesses 16 and 16 formed in a part of the adherend 15 by the recess 43. It was made to fill. Therefore, it is possible to prevent the molten resin 12 from flowing out of the bonded portion 15.

  (2) In addition, the concave portion 43 that does not press the bonded portion 15 is provided in the pressing portion 41, and the depressions 16 and 16 are positively formed in a part of the bonded portion 15. The surplus portion 12 a of the molten resin 12 is positively stored in the recesses 16 and 16. Accordingly, it is possible to prevent the molten resin 12 from flowing out of the bonded portion 15 more.

  (3) Further, along the longitudinal direction of the adherend portion 15 by the molten resin 12 filled in the recesses 16 and 16 formed in the longitudinal direction of the adherend portion 15 at the center portion in the width direction of the adherend portion 15. A thick portion 15a is formed over a wide range. Therefore, it is possible to improve the sealing performance of the adherend 15 without reducing the strength of the adherend 15.

  (4) Moreover, since the recessed part 43 is extended along the longitudinal direction of the press part 41, the dents 16 and 16 are formed in the wide range along the longitudinal direction of the to-be-adhered part 15. FIG. Therefore, the surplus portion 12a of the molten resin 12 flows between the film materials 11 and 11 along the recesses 16 and 16 extending in the longitudinal direction. As a result, a larger amount of molten resin 12 is distributed uniformly in the recesses 16 and 16, so that a thick portion 15 a having a uniform thickness is formed, and the sealing performance of the adherend portion 15 is further improved.

  (5) Moreover, since the recessed part 43 presses the to-be-adhered part 15 (opening part 14) so that the recessed part 43 may pinch | interpose the to-be-adhered part 15 (opening part 14), both film materials 11 and 11 The positions of the recesses 16 and 16 formed in the same position. Therefore, more molten resin 12 is concentrated and filled in the positions of the recesses 16 and 16, and the sealing performance of the adherend 15 (opening 14) is further improved.

  (6) Moreover, the recessed part 43 is arrange | positioned in the width direction approximate center part of the press part 41, and the dents 16 and 16 were formed in the width direction center part of the to-be-adhered part 15 (opening part 14). Then, the adhesive 12 is filled with the surplus portion 12a at the substantially central portion in the width direction of the adherend 15 (opening 14). Accordingly, surplus adhesive is filled into the recesses 16 and 16 formed in a part of the adherend 15 (opening 14) from both sides in the width direction of the adherend 15 (opening 14). As a result, the adhesive is concentrated and filled in the positions of the recesses 16 and 16, and the sealing performance of the bonded portion 15 (opening 14) is further improved.

In the above-described embodiment, a modified example changed to the following mode may be adopted.
In the above-described embodiment, the concave portions 43 are formed in both the pressing portions 41, and the pressed portions 41 are configured so that the concave portions 43 form a pair with the bonded portion 15 (opening portion 14) interposed therebetween. However, the present invention is not limited to such an embodiment. For example, the concave portion 43 is formed only on one side of the pressure members 40, 40, and the pressing portion 41 has the bonded portion so that the concave portion 43 forms a pair with the bonded portion 15 (opening portion 14) interposed therebetween. 15 (opening 14) may not be pressed. Further, a plurality of concave portions 43 may be provided in both pressing portions 41.

  In the above embodiment, the concave portion 43 has a substantially rectangular cross-sectional shape, and the inner side surface 43a thereof is substantially perpendicular to the opposing surface 41a, but is not limited to such a mode. For example, the concave portion 43 may be inclined in a direction in which the inner side surface 43a of the concave portion 43 faces the film materials 11 and 11, and can be changed as appropriate. Further, the recess 43 may be formed in a substantially semicircular cross section, and the inner side surface 43a may be curved.

  -In above-mentioned embodiment, although the pressurization bodies 40 and 40 are always heated, it is not necessarily limited to such an aspect, It is possible to fuse the thermoplastic resin layers 12 and 12 of the film materials 11 and 11 Any configuration can be appropriately changed. For example, the pressing portion 41 may be instantaneously heated when the opening portion 14 is pressed to melt the thermoplastic resin layers 12 and 12.

  In the above embodiment, the concave portion 43 is formed in a groove shape extending from one end side to the other end side of the opposing surface 41a of the pressing portion 41, but is not limited to such a mode. Or they may be arranged in a staggered pattern, and can be changed as appropriate.

  In the above embodiment, the pressurizing body 40 having the pressing portion 41 is shown as one for welding the film materials 11 and 11 having the thermoplastic resin layers (melted resin) 12 and 12 as adhesives. It is not limited to such an aspect, For example, the to-be-adhered part to which the adhesive agent was apply | coated is pressed, and this sheet-like member can also be adhere | attached.

  In the above-described embodiment, the pressure bodies 40, 40 press and bond the opening 14 in which the lead-out member 20 is sandwiched between the film materials 11, 11 as sheet-like members, but are limited to such a mode. For example, the present invention can also be applied to the case where the film materials 11 are simply bonded to each other. In this case, the concave surface 42 having the same outer surface shape as the base portion 21 of the derivation member 20 is not formed on the facing surface 41a of the pressing portion 41, and the facing surface 41a of the pressing portion 41 is flat.

In the above embodiment, the pressure bodies 40, 40 are made of stainless steel, but the material of the pressure bodies 40, 40, such as aluminum, can be changed as appropriate.
In the above-described embodiment, the pressing portion 41 first forms the concave portion 43 deeper than the concave surface 42 after forming the concave surface 42 on the opposing surface 41 a, but forms the concave surface 42 and the concave portion 43. The procedure is not limited to such an embodiment. For example, the concave portion 43 may be formed by forming the concave portion 43 having a uniform depth on the facing surface 41 a and then forming the concave surface 42 shallower than the concave portion 43. .

(A) Perspective view of ink pack, (b) AA line sectional view of (a). Schematic of a bag welding apparatus. Schematic of a bag welding apparatus. The front view of a pressurization body. The figure seen from the arrow C direction in FIG. The figure seen from the arrow D direction in FIG. Explanatory drawing for demonstrating the effect of this invention. FIG. 3 is a sectional view taken along line BB in FIG. 1.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Ink pack as a liquid container, 10 ... Bag part, 11 ... Film material as a sheet-like member, 12 ... Molten resin as an adhesive agent, 12a ... Excess of adhesive agent (molten resin), 14 ... Adhered Opening part as part, 15 ... adherend part, 16 ... dent, 20 ... lead-out member, 30 ... bag welding device as pressurizer, 40 ... pressurizing body, 41 ... pressing part, 43 ... concave part, 50 ... driving means .

Claims (7)

An adhesive member is interposed between the sheet-like sheet members so as to cover one end side to the other end side of the adherend portion and press the adherend portion to bond the sheet-like members together. Pressure body,
The pressing body includes a recess for forming a recess that allows the sheet-like member to enter and a part of the bonded portion is filled with an excess of the adhesive. In the pressurization object according to claim 1,
The said recessed part was formed so that the said to-be-adhered part might not be pressed. In the pressurization object according to claim 1 or 2,
The said recessed part was extended along the longitudinal direction of the said press part. The pressurization body characterized by the above-mentioned. In the pressurization object according to any one of claims 1 to 3,
The pressing body is configured to press the adherend portion so that the concave portion forms a pair with the adherend portion interposed therebetween. In the pressurization object according to any one of claims 1 to 4,
The said recessed part is arrange | positioned in the width direction approximate center part of the said press part. The pressurizer characterized by the above-mentioned. The pressurizing body according to any one of claims 1 to 5,
A pressurizing machine comprising: a driving unit that drives the pressurizing body in a direction in which the pressurizing body presses the adherend portion. A bag portion that is formed in a substantially bag shape and is sealed by being bonded and sealed by the pressure body according to any one of claims 1 to 5 as an adherend portion;
A liquid storage container, comprising: an outlet member for extracting the liquid stored in the bag portion from the bag portion.

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