JP2006198778A - Ink cartridge for inkjet recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ink cartridge which resists a fall during transport and handling and vibration or the like during transport and stores a baglike ink container having an ink leading-out portion and an ink storage portion. <P>SOLUTION: The ink cartridge for an inkjet recording device stores the ink container having the ink leading-out portion and the ink storage portion in a case. The case is made by folding a unfolded substrate along folds and has a position regulation member to regulate the position of the leading out portion and a protective member to protect the ink storage portion. The ink container is stored with the ink leading out portion regulated by the position regulation member and the vicinity of the rear end of the ink storage portion pinched by the protective member. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an ink cartridge for an ink jet recording apparatus (hereinafter also referred to as an ink cartridge) in which an ink container having an ink lead-out portion and an ink storage portion is housed in an outer box.

  Recently, digital devices have made remarkable progress. Inkjet printers for visualizing information output from digital devices are required to become more precise with the progress of digital devices, and the image size is also increasing. Ink jet recording apparatuses (printers) use an ink cartridge that contains an ink container having an ink outlet part and an ink storage part in order to supply ink to an ink jet recording apparatus (printer) head (hereinafter also referred to as a head). Yes.

  As the amount of ink used increases as the image size increases, the size of the ink storage section has also increased. Further, with the increase in size of the ink storage section, an ink container having an ink storage section and an ink lead-out section using a multilayer material in which various thermoplastic resin films are laminated is used from the viewpoint of ease of production and cost. The following functions are required for ink cartridges used in ink jet recording apparatuses.

  1) An ink container of an ink container that holds the performance of the ink itself, such as viscosity and surface tension, for a long period of time is required so that the ink jet recording apparatus can stably draw characters, images, etc. on the recording paper. Has been.

  2) Prevent bubbles from being generated on the ink flow path from the ink container to the head of the ink jet recording apparatus, and blockage of the ink flow path by foreign matter.

  3) The ink cartridge can be easily attached to and detached from the ink jet recording apparatus.

  As measures against these requirements, for example, JP-A-54-151033, JP-A-56-44669, JP-A-54-151033, JP-A-56-44669, JP-A-62-121062, JP-A-7-323559. Multilayer film material is used as a material constituting the ink storage portion of the ink container as described in Japanese Patent No. 2001-232812 and 2003-320677.

  An ink cartridge that uses such a multilayer film material and stores an ink pack in which an ink outlet portion is attached to the end of a bag-shaped ink storage container in an outer box is disclosed in, for example, JP-A-2002-260374 and 2003-2003. 145785 and 2003-226023.

  In recent years, it is a general tendency that the capacity of an ink storage portion of an ink container stored in an ink cartridge is increased with an increase in image size. Along with the expansion of the capacity of the ink storage unit, there has been an accident of ink leakage due to damage to the ink storage unit due to dropping when transporting the ink cartridge, vibration and dropping during handling. Various studies have been made so far to prevent damage to the ink storage portion due to dropping, vibration, and the like. For example, when storing an ink container in an outer box, an ink cartridge that regulates the movement of the ink storage section in the outer box by pushing the ink storage section with a projection (pressing member) provided inside the outer box is known. (For example, see Patent Document 1). There is known an ink cartridge that wraps the entire ink container with a buffer member to prevent an impact at the time of dropping, an impact from the outside, and the like (for example, see Patent Document 2). An ink cartridge is known in which an ink container having a reinforcing member bonded to an ink storage portion is placed on a pedestal, the movement of the ink lead-out portion is regulated by the pedestal, and the ink remaining amount is reduced by the reinforcing member (for example, Patent Document 3). See). However, in the case of the ink cartridge described in Patent Document 1, if the ink cartridge falls down at either the ink outlet portion or the end portion of the ink storage portion, the junction between the ink lead-out portion and the ink storage portion or the end of the ink storage portion There is a concern that the part will be damaged. In the case of the ink cartridge described in Patent Document 2, when the amount of ink is reduced, a gap is formed between the buffer member and the ink storage portion, and the remaining amount of ink increases depending on how the ink storage portion is deformed. There is a concern. Further, when the ink cartridge is manufactured, the entire surface of the ink storage portion and the buffer member must be wrapped so that the workability may be lowered. In the case of the ink cartridge described in Patent Document 3, no means for restricting the movement of the end portion of the ink storage portion is employed. Therefore, when the ink cartridge is dropped with the end portion of the ink storage portion facing downward, the ink outlet portion and the ink storage portion are disposed. There is a concern that the joint with the part may be damaged. The ink cartridge is composed of four members, an outer box, a pedestal, an ink container, and a reinforcing member. When the ink cartridge is manufactured, workability such as joining of the reinforcing member to the ink storage unit and manufacturing of the pedestal is reduced. There is also a concern that the cost will be high. In addition, disposal after use becomes complicated, and there is a concern that the discardability of the material after use is inferior.

Under these circumstances, it is desired to develop an ink cartridge containing a bag-like ink container that has resistance to drops during transportation and handling, vibration during transportation, and the like, and has an ink outlet portion and an ink storage portion. It is rare.
JP 2001-301769 A JP 2002-331684 A JP 2003-145785 A

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a bag that has resistance to dropping during transportation and handling, vibration during transportation, and the like, and has an ink outlet portion and an ink storage portion. The present invention provides an ink cartridge that accommodates an ink container and has reduced waste material after use and reduced environmental load.

  The above object of the present invention has been achieved by the following constitution.

(Claim 1)
In an ink cartridge for an ink jet recording apparatus in which an ink container having an ink outlet portion and an ink storage portion is stored in an outer box,
The outer box is produced by folding and folding a single development substrate along a folding line,
A position regulating member that regulates the position of the ink lead-out portion inside the outer box;
A protective member for protecting the ink storage portion;
An ink for an ink jet recording apparatus, wherein the ink container is stored in a state where the position of the ink outlet portion is regulated by the position regulating member, and the vicinity of the rear end portion of the ink containing portion is sandwiched by the protective member. cartridge.

(Claim 2)
The outer box has a cylindrical body having a rectangular bottom, a top surface, two long side walls, and two short side walls,
The bottom is composed of a first bottom and a second bottom,
2. The inkjet according to claim 1, wherein one of the long side walls is a double side wall including a first side wall and a second side wall, and the other side is a single side wall. Ink cartridge for recording apparatus.

(Claim 3)
The position restriction member includes a first position restriction member provided at one end of the first bottom portion of the outer box, and a first position restriction member provided at a position facing the first position restriction member inside the short side of the top surface. The ink cartridge for an ink jet recording apparatus according to claim 1, further comprising a two-position regulating member.

(Claim 4)
The second bottom part constituting the bottom part of the outer box is fixed by a plug-in type flap provided on the long side of the second bottom part and a plug-in type locking member provided on a single side wall. The ink cartridge for an ink jet recording apparatus according to any one of claims 1 to 3.

(Claim 5)
The short side wall on the first position regulating member side of the outer box has a plug provided on the short side having a plug-in type flap provided on the short side wall and a second position regulating member on the top surface. The ink cartridge for an ink jet recording apparatus according to any one of claims 1 to 4, wherein the ink cartridge is fixed by a type lock member.

(Claim 6)
The ink cartridge for an ink jet recording apparatus according to claim 1, wherein the protective member is provided at one end of the first bottom portion.

(Claim 7)
7. The inkjet recording apparatus according to claim 1, wherein the outer box has a first cutout portion at an end of a bottom portion on which the first position restriction member is provided. ink cartridge.

(Claim 8)
The ink cartridge for an ink jet recording apparatus according to claim 1, wherein the outer box has a second cutout portion on a top surface.

(Claim 9)
The development substrate includes a first bottom plate that forms a rectangular first bottom portion of the outer box,
A first position restricting member flap for forming a first position restricting member on one short side of the first bottom plate and a protective member flap for forming a protecting member on the other short side;
A first side plate forming a first side wall constituting a double side wall of the outer box and a second side plate forming a single side wall are connected to one of the long side sides of the first bottom plate,
One side is connected to the second side plate, and a cut portion is provided to form a plug-in lock member across the second side plate and the first bottom plate,
The top plate forming the rectangular top surface portion of the outer box is connected to the long side of the second side plate,
The first position restriction of the second bottom plate forming the second position restriction member flap and the rectangular second bottom of the outer box on the short side of the top plate on the same side as the first position restriction member flap. A locking flap that is fixed to the short side on the same side as the member flap is connected, and a third side plate that forms a second side wall constituting the double side wall of the outer box is connected to the long side, and at least A second cutout is provided at one location,
Connecting the second bottom plate forming the rectangular second bottom portion of the outer box to the long side of the third side plate;
A first side wall flap that forms a short side wall on the short side of the second bottom plate on the same side as the first position regulating member flap, and a second side wall that forms a short side wall on the opposite short side. The side wall flap is connected, the first cutout is provided in the vicinity of the short side, and the locking flap is connected on the long side. An ink cartridge for an ink jet recording apparatus according to the description.

(Claim 10)
The ink cartridge for an inkjet recording apparatus according to claim 1, wherein the development substrate is a cardboard.

  Resistant to drops during transportation and handling, vibration during transportation, etc., storing a bag-like ink container with an ink outlet and ink storage, and reducing waste materials after use It was possible to provide an ink cartridge with reduced environmental load, and it was possible to transport the ink cartridge without paying special attention, and to handle it normally without special attention even in daily handling.

  The embodiment of the present invention will be described with reference to FIGS. 1 to 7, but the present invention is not limited to this.

  FIG. 1 is a schematic perspective view of an ink cartridge. FIG. 1A is a schematic perspective view of the ink cartridge as viewed from above. FIG. 1B is a schematic perspective view of the ink cartridge as viewed from below.

  In the figure, reference numeral 1 denotes an ink cartridge containing an ink container (see FIG. 2). Reference numeral 101 denotes an outer box which is one of the members constituting the ink cartridge 1, reference numeral 102 denotes a top surface, and reference numeral 104 denotes a bottom portion. The bottom 104 is a double bottom composed of a first bottom 104a (see FIG. 3) and a second bottom 104b. Reference numeral 103 denotes a window for confirming the ink residual amount and ink color disposed on the top surface 102, and when used, it can be pulled out along the perforation 103a attached to the periphery by pressing. Is preferred. 105 is for joining the ink supply part of the ink jet recording apparatus and the ink outlet part 3a (3b) (see FIG. 2) of the ink container 2a (2b) (see FIG. 2) housed in the ink cartridge 1. The notch part provided in the bottom part 103 of the ink cartridge main body 101 is shown. In use, it is preferable to be able to pull out along the perforation 105a attached to the periphery by pushing. The ink cartridge main body 101 has a front side as a side where the notch 105 is provided and a rear side as an opposite side.

  Reference numeral 106a denotes one long side wall, which is a double side wall composed of a first side wall 106a1 (see FIG. 4) and a second side wall 106a2 (see FIG. 4). Reference numeral 106b denotes the other long side wall, which is a single side wall. Reference numeral 107 a denotes a front side short side wall, which is fixed by inserting a flap 107 a 1 below the top surface 102. Reference numeral 107b denotes a rear short side wall. Reference numeral 102 a denotes a locking flap provided on the short side of the front surface of the ink cartridge body 101 on the top surface 102 in order to fix the top surface 102. The distal end portion 102a1 (see FIG. 3) of the locking flap 102a is inserted into the insertion hole 107a2 provided in the front short side wall 107a and the bent portion of the flap 107a1. The flap 102 is disposed on the top surface 102 at a position facing the notch 105. Reference numeral 106b1 denotes a plug-in type locking member provided on the long side wall 106. The distal end portion 106b2 (see FIG. 4) of the insertion type locking member 104b1 is inserted into the insertion hole 104b1 provided in the bent portion of the flap 104b2 (see FIG. 4) provided on the long side of the second bottom portion 104b. 2 The long side of the bottom 104b is fixed. The outer box 101 is made by folding and folding a single development substrate (one piece material) along a folding line, and the outer box 101 will be described in detail with reference to FIGS.

  FIG. 2 is a schematic perspective view of an ink container housed in the ink cartridge shown in FIG. FIG. 2A is a schematic perspective view of an ink container having an ink outlet portion and an ink storage portion stored in the ink cartridge shown in FIG. FIG. 2B is a schematic perspective view of an ink container when another form of ink lead-out portion is used for the ink lead-out portion shown in FIG.

  The ink cartridge shown in FIG. 2A will be described. In the figure, 2a indicates an ink container. The ink container 2 a has an ink lead-out part 3 a and an ink storage part 4. 401 indicates the upper surface of the thermoplastic film forming the ink storage portion 4, and 402 indicates the lower surface of the thermoplastic film forming the ink storage portion 4.

  Reference numeral 403 denotes a first seal portion for making the ink storage portion 4. The first seal portion 403 indicates a seal portion when the ink storage portion 4 is manufactured by the center seal method, and a window portion 103 (see FIG. 1) provided on the upper surface 102 (see FIG. 1) of the ink cartridge 1 (see FIG. 1). In order to make it easier to check the remaining amount, color, and the like of the ink stored in the ink storage unit 4 from the lower surface 402 side (see FIG. 1). Reference numeral 404 denotes a second seal portion for sealing the rear end for making the ink storage portion 4. The seal portion may be provided on both sides of the ink storage portion 4 depending on the method of manufacturing the ink storage portion 4.

  Reference numeral 3a1 denotes a base material of the ink outlet 3a. Reference numeral 3a2 denotes a joint portion with the ink storage portion 4 provided on the base material 3a1. As a method of joining the ink storage portion 4 to the joint portion 3a2, the joint portion 3a2 is inserted into the ink storage portion 4, and then bonded by heat sealing, adhesive, or the like. Reference numeral 405 denotes a third seal portion when the ink storage portion 4 is joined to the joint portion 3a2. Reference numeral 3a3 denotes a mounting portion to an ink supply portion (not shown) of the ink jet recording apparatus. Reference numeral 3a4 denotes a cylindrical ink extraction portion provided in the mounting portion 3a3 of the base material 3a1 of the ink lead-out portion 3a. Reference numeral 3a5 denotes a hole for fitting and fixing the drop-off prevention member of the ink leakage prevention member constituting the ink take-out portion 3a4, and another hole 3a6 (see FIG. 3) is provided on the opposite side. 3a7 shows the member which seals a flow volume adjustment part. As a method of sealing, after the ink lead-out part 3a is produced, aluminum foil may be laminated and sealed by heat welding with a member, or when the ink lead-out part 3a is produced, it may be sealed by insert molding at the same time. .

  The ink cartridge shown in FIG. 2B will be described. In the figure, 2a indicates an ink container. The ink storage portion 4 shown in FIG. 2B is the same as the ink storage portion 4 shown in FIG. Reference numeral 3b1 denotes a base material of the ink outlet 3b. The ink lead-out part 3b shown in this figure is a form in which unnecessary portions are removed from the ink lead-out part 3a shown in FIG. 2A to reduce the environmental load after use. Reference numeral 3b2 denotes a joint portion with the ink storage portion 4 provided on the base material 3b1. As a method of joining the ink storage portion 4 to the joint portion 3b2, the joint portion 3b2 is inserted into the ink storage portion 4, and then bonded by heat sealing, adhesive, or the like. Reference numeral 405 denotes a seal portion when the ink storage portion 4 is joined to the joint portion 3b2. Reference numeral 3b3 denotes a mounting part to an ink supply part (not shown) of the ink jet recording apparatus. 3b4 shows a cylindrical ink extraction part provided in the mounting part 3b3 of the base material 3b1 of the ink lead-out part 3b. Reference numeral 3b5 denotes a hole for fitting and fixing the drop-off prevention member of the ink leakage prevention member constituting the ink extraction portion 3b4, and another hole is provided on the opposite side. 3b7 indicates a member for sealing the flow rate adjusting unit. As a method of sealing, after the ink lead-out portion 3b is manufactured, aluminum foil may be laminated and sealed by heat welding with a member, or when the ink lead-out portion 3b is manufactured, it may be sealed by insert molding at the same time. .

  The ink container 2a shown in FIG. 2A and the ink container 2b shown in FIG. 2B can be selected as necessary. The ink storage unit 4 has a side on which the ink outlet 3a (3b) is attached as a front part and the opposite side as a rear part. In the ink lead-out part 3a (3b), the side to which the joint part 3a2 (3b2) is attached is the back side, and the opposite side is the front side.

  FIG. 3 is an enlarged schematic cross-sectional view along AA ′ in FIG.

  In the figure, reference numeral 108a denotes a first position regulating member that regulates the position of the ink outlet 3a. The first position regulating member 108a is provided by bending and raising the end portion of the first bottom portion 104a on the front side of the ink cartridge. Reference numeral 108b denotes a second position regulating member that regulates the position of the ink outlet 3a. The second position regulating member 108b is provided by bending the end of the top surface 102 on the front side of the ink cartridge.

  The position of the ink outlet portion 3a of the ink container 2a accommodated in the ink cartridge main body 101 is regulated by the first position regulating member 108a, the second position regulating member 108b, and the front short side wall 107a. It cannot move within the main body 101. For this reason, when the ink cartridge 1 is dropped with its front portion facing downward, it is possible to prevent damage to the ink outlet portion 3a.

  102a1 shows the front-end | tip part of the flap 102a for a lock | rock, and is inserted in the insertion hole 107a2 provided in the front short side wall 107a and the bending part of flap 107a1. The opening and closing of the front short side wall 107a is restricted by the locking flap 102a. When necessary, the front short side wall 107a can be opened by pulling out the front end portion 102a1. Even if the ink cartridge 1 is dropped by the locking flap 102a, the front short side wall 107a does not open. Therefore, the ink container 2a pops out, and the ink due to foreign matter entering the ink cartridge 1 is removed. It is possible to prevent damage to the container 2a.

  Reference numeral 109 denotes a protective member that protects the ink storage portion 4 of the ink container 2 a provided at the end of the first bottom portion 104 a on the rear side of the ink cartridge main body 101. The protective member 109 has a W-shape formed by a first member 109a, a second member 109b, a third member 109c, and a fourth member 109d by bending one member in a zigzag manner along a folding line. The fourth member 109d is connected to the first bottom portion 104a. The first member 109a normally holds the space inside the top surface 102, and the ink capacity on the rear side of the ink storage unit 4 is increased (for example, when the ink cartridge is directed downward). In this case, it comes into contact with the inside of the top surface 102. The second member 109b and the third member 109c sandwich the rear portion of the ink storage unit 4.

  The protection member 109 restricts an increase in the ink capacity on the rear side of the ink storage part 4 and the ink lead-out part 3a is not moved by the first position restricting member and the second position restricting member. There is no increase, and the impact on the seal portion at the rear end of the ink storage portion 4 can be mitigated, and damage to the seal portion can be prevented. Further, since the position of the ink storage unit 4 is regulated by the protective member 109, even when the ink cartridge falls with the rear part facing downward, the junction part 3a2 of the ink outlet part 3a and the joint part of the ink storage part 4 are moved to. Since the downward impact applied is mitigated, it is possible to prevent damage to the joint.

  The upper surface 401 of the ink storage unit 4 may be adhered to the inside of the top surface 102 of the outer box 101 with a double-sided adhesive tape or an adhesive. When the ink is reduced by adhering the upper surface 401 to the inner side of the top surface 102, it is possible to prevent the upper surface 401 and the lower surface 402 of the ink storage unit 4 from sticking, and to reduce the remaining amount of ink. . As a means for reducing the remaining amount of ink, a pedestal with the rear side of the outer box raised may be arranged on the first bottom portion 104a in accordance with the height of the joint portion 3a2 of the ink outlet portion 3a.

  FIG. 4 is an enlarged schematic cross-sectional view along the line BB ′ in FIG.

  In the figure, 106a1 indicates the first side wall and 106a2 indicates the second side wall. The long side wall 106a is a double side wall composed of a first side wall 106a1 and a second side wall 106a2. 106b2 shows the front-end | tip part of the insertion-type locking member 106b1 provided in the long side wall 106b. The tip end portion 106b2 is inserted into the insertion hole 104b1 provided in the bent portion of the flap 104b2 provided on the long side of the second bottom portion 104b. Reference numeral 104b2 denotes a flap provided on the long side of the second bottom portion 104b, and is inserted into an insertion hole 104a1 provided in a bent portion between the long side wall 106a and the first bottom portion 104a. The second bottom portion 104b is fixed by the distal end portion 106b2 of the plug-in lock member 106b1 and the flap 104b2.

  The opening / closing of the second bottom portion 104b is restricted by inserting the distal end portion 106b2 of the insertion-type lock member 106b1 into the insertion hole 104b1, and the distal end portion 106b2 is pulled out when taking out the ink container stored in the ink cartridge after use. By sequentially removing the locking flaps used for assembling the ink cartridge main body 101, it is possible to return to a single development substrate (one piece material). The method for assembling and disassembling the ink cartridge will be described with reference to FIG.

  FIG. 5 is a schematic view of the development substrate of the outer box of the ink cartridge shown in FIG. In addition, the dashed-dotted line in a figure shows a crease line.

  In the figure, reference numeral 5 denotes a single development substrate (made of a one-piece material). Reference numeral 501 denotes a rectangular second bottom plate (when assembled, the second bottom 104b shown in FIG. 1 is formed). Reference numeral 502 denotes a first side plate connected to the long side of the second bottom plate 501 (when assembled, the second side wall 106a2 shown in FIG. 4 is formed). Reference numeral 503 denotes a top plate connected to the side plate 502 (when assembled, the top surface 102 shown in FIG. 1 is formed). Reference numeral 504 denotes a side plate connected to the top plate 503 (when assembled, the long side wall 106b shown in FIG. 4 is formed). Reference numeral 505 denotes a rectangular first bottom plate connected to the side plate 504 (when assembled, the first bottom portion 104a shown in FIG. 1 is formed). Reference numeral 506 denotes a second side plate connected to the first bottom plate 505 (when assembled, the first side wall 106a1 shown in FIG. 4 is formed).

  501a indicates a flap provided on the long side of the second bottom plate 501 (corresponding to the flap 104b2 shown in FIG. 4 when assembled), 501b is a hole for insertion provided on the crease line (when assembled, This corresponds to the insertion hole 104a1 shown in FIG. Reference numeral 501c denotes a perforation (corresponding to the perforation 103a shown in FIG. 1 when assembled) provided at the short side end of the second bottom plate 501. Reference numeral 501d denotes a short side plate connected to the short side end of the second bottom plate 501 (when assembled, the front short side wall 107a shown in FIG. 1 is formed). Reference numeral 501e denotes a flap connected to the short side plate 501d (corresponding to the flap 107a1 shown in FIG. 3 when assembled). Reference numeral 501f denotes a hole for insertion provided on the crease line (corresponding to the insertion hole 107a2 shown in FIG. 3 when assembled). Reference numeral 501g denotes a short side plate connected to the other short side end of the second bottom plate 501 (when assembled, the rear short side wall 107b shown in FIG. 1 is formed). Reference numeral 501h denotes a flap connected to the short side plate 501g.

  Reference numeral 502 a denotes a flap connected to the short side of the first side plate 502, and 502 b denotes a flap connected to the other short side of the first side plate 502.

  Reference numeral 503a denotes a second position restricting member piece connected to the short side of the top plate 503 (corresponding to the second position restricting member 108b shown in FIG. 3 when assembled). Reference numeral 503b denotes a flap connected to the short side of the top plate 503 (when assembled, the flap corresponds to the locking flap 102a shown in FIG. 3). Reference numeral 503c denotes a front end portion of the flap 503b (corresponding to the front end portion 102a1 of the locking flap 102a shown in FIG. 3 when assembled). Reference numeral 503d denotes a perforation provided on the top plate 503 (corresponding to the perforation 103a that forms the window 103 shown in FIG. 1 when assembled).

  Reference numeral 504 a denotes a flap connected to the short side of the side plate 504, and reference numeral 504 b denotes a flap connected to the other short side of the side plate 504. Reference numeral 504c denotes a cut piece (one of which is connected to the side plate 504 and the other three sides are provided by cutting over the first bottom plate 505 (corresponding to the plug-in lock member 106b1 shown in FIG. 4 when assembled)). . Reference numeral 504d denotes a front end portion of the cut piece 504c (when assembled, it corresponds to the front end portion 106b2 of the insertion-type lock member 106b1 shown in FIG. 4). Reference numeral 504e denotes an insertion hole provided on the fold line of the side plate 504 (when assembled, it corresponds to the insertion hole 104b1 shown in FIG. 4).

  Reference numeral 505a denotes a first position restricting member piece connected to one short side of the first bottom plate 505 (corresponding to the first position restricting member 108a shown in FIG. 3 when assembled). Reference numeral 505b denotes a protective member piece (connected to the protective member 109 shown in FIG. 3 when assembled) connected to the other short side of the first bottom plate 505.

Reference numeral 506 denotes a first side plate connected to the long side of the first bottom plate 505 (corresponding to the first side wall 106a1 shown in FIG. 4 when assembled). In the figure, the alternate long and short dash line indicates a crease line.
The outer case of the ink cartridge shown in FIG. 1 can be manufactured by sequentially folding and folding along the crease line attached to the development substrate shown in this figure. As shown in this figure, the outer case of the ink cartridge manufactured using the development substrate shown in this figure does not use adhesives, staples, etc., and the material is a single material, so it can be easily disassembled after use. In addition, when the ink cartridge main body is disposed of, the locking tape for fixing the ink storage container to the inner surface of the outer box is not used, so that reuse as a paper material is facilitated and environmental suitability is improved.

  FIG. 6 is a schematic flow diagram for producing the ink cartridge shown in FIG. 1 by bending the portions of the development substrate shown in FIG. 5 along the crease line and overlapping them.

  This figure shows an example of an assembling procedure, and the present invention is not limited to this, and it is possible to assemble according to a procedure that facilitates assembling as appropriate. In addition, the dashed-dotted line in a figure shows a crease line.

  In S1, a first position restricting member piece 505a connected to the rectangular first bottom plate 505 (forming the first bottom 104a shown in FIG. 1 when assembled) of the produced development substrate 5 (when assembled, FIG. 3 (corresponding to the first position regulating member 108a shown in FIG. 3) is bent at 90 ° along the crease line (in the direction of the arrow in the figure). Next, the protection member piece 505b (corresponding to the protection member 109 shown in FIG. 3 when assembled) is folded along a crease line provided at a position where it is connected to the first position regulating member piece 505a ( Then, the protective member piece 505b is bent in a zigzag manner along the crease line attached to the protective member piece 505b.

  In S2, a second position restricting member piece 503a provided on the short side of the top plate 503 (when the top plate 102 shown in FIG. 1 is formed when assembled) (shown in FIG. 3 when assembled). It is bent at 90 ° along the crease line (corresponding to the second position restricting member 108b) (in the direction of the arrow in the figure). The ink container 3 a shown in FIG. 2A is placed on the first bottom plate 505. At this time, the back surface of the ink lead-out portion 3a and the surface of the first position restricting member piece 505a bent up are brought into contact with each other, and the rear portion of the ink storage portion is sandwiched between the zigzag protective member pieces 505b ( (See FIG. 3). Furthermore, it is preferable that the seal portion at the rear of the ink storage portion is in contact with the protective member piece 505b.

  In S3, with the ink container 3a placed on the first bottom plate 505, the first side plate 506 connected to the first bottom plate 505 (corresponding to the first side wall 106a1 shown in FIG. 4 when assembled) is folded. Bend at 90 ° along the line of sight (arrow direction in the figure). Next, the side plate 504 connected to the first bottom plate 505 (when assembled, the long side wall 106b shown in FIG. 4 is formed) is bent at 90 ° along the fold line (in the direction of the arrow in the drawing). Next, a flap 501a (corresponding to the flap 104b2 shown in FIG. 4 when assembled) provided on the long side of the second bottom plate 501 is bent at 90 ° along the fold line. Subsequently, the top plate 503 connected to the side plate 504 (when assembled, the top surface 102 shown in FIG. 1 is formed) is bent at 90 ° along the fold line (in the direction of the arrow in the drawing). At this time, the second position restricting member piece 503a bent along the crease line comes into contact with the back surface of the ink outlet 3a. Further, the top plate 503 comes into contact with the upper surface of the ink storage unit.

  In S4, the first side plate 502 (when assembled, forms the second side wall 106a2 shown in FIG. 4) is bent at 90 ° along the fold line (in the direction of the arrow in the figure), and then the second bottom plate 501 (assembled). 1 is formed at 90 ° along the fold line (in the direction of the arrow in the figure). At this time, the flap 501a is inserted into the insertion hole 504e provided on the fold line between the side plate 504 and the first bottom plate 505 (corresponding to the insertion hole 104b1 shown in FIG. 4 when assembled), and the second bottom plate 501 is inserted. Is fixed.

  In S5, the flap 502b of the first side plate 502 and the flap 504b of the side plate 504 are bent inward along the fold line (in the direction of the arrow in the figure), and then, on the other short side end of the second bottom plate 501. The short side plate 501g connected (forms the rear short side wall 107b shown in FIG. 1 when assembled), the flap 501h is bent along the fold line (in the direction of the arrow in the figure), and the flap 501h is The short side plate 501g is fixed by being inserted below the plate 503. A notch piece 504c (one side is connected to the side plate 504 and the other three sides are provided by cutting over the first bottom plate 505 corresponds to the plug-in type locking member 106b1 shown in FIG. 4 when assembled) is the second bottom plate. 501 and the flap 501a are inserted into a hole 501b for insertion (corresponding to the insertion hole 104a1 shown in FIG. 4 when assembled). As a result, the second bottom plate 501 is locked. In addition, (a) shows the case where it sees from the top plate 503 side, (b) shows the case where it sees from the 2nd bottom plate 501 side.

  In S6, the flap 502a of the first side plate 502 and the flap 504a of the side plate 504 are bent inward along the fold line (in the direction of the arrow in the figure). In addition, (a) shows the case where it sees from the top plate 503 side, (b) shows the case where it sees from the 2nd bottom plate 501 side.

  In S7, a flap 503b (corresponding to the locking flap 102a shown in FIG. 3 when assembled) which is connected to the short side of the top plate 503 is bent upward along the fold line (in the drawing). Arrow direction). Next, the short side plate 501d connected to the short side end of the second bottom plate 501 (when assembled, forms the front short side wall 107a shown in FIG. 1) is bent along the crease line, A flap 501e (corresponding to the flap 107a2 shown in FIG. 3 when assembled) connected to the short side plate 501d is inserted below the top plate 503. Thus, the short side plate 501d is fixed. Next, the front end portion 503c (assembly) of the flap 503b is inserted into a hole for insertion (when assembled, the insertion hole 107a2 shown in FIG. 3) provided on the fold line between the short side plate 501d and the flap 501e. Then, the short side plate 501d is locked by inserting the locking flap 102a shown in FIG.

  In S9, the ink cartridge 1 shown in FIG. 1 is completed through the processes of S1 to S8.

  When the ink cartridge is discarded after the ink in the ink container is exhausted, the ink container can be taken out by disassembling the outer box in the order of S8 to S1. Further, the outer box is also easily flattened, so that the processing becomes easy.

  FIG. 7 is a developed view of the outer box of the ink cartridge shown in FIG. In addition, the dashed-dotted line in a figure shows a crease line.

  In the figure, O indicates the width of the protective member 109. The width O is 95 to 95 with respect to the width of the ink storage portion of the ink container to be stored in consideration of damage to the ink storage portion due to the contact of the end of the protective member to the ink storage portion, ease of assembly of the ink cartridge, and the like. 100% is preferred.

  P indicates the total length of the protection member 109. The total length P is preferably 80 to 100% with respect to the length of the ink storage portion of the ink container to be stored in consideration of a buffer function, cost, and the like when folded in four.

  Q indicates the length of the fourth member 109d. The length Q is preferably 20 to 35% with respect to the total length P in consideration of the storage property inside the outer box and the impact resistance function due to the shortened portion of the ink container that holds the ink storage portion.

  R indicates the length of the third member 109c. The length R is preferably 10% to 35% with respect to the full length P in consideration of an impact resistance function due to shortening of the portion that holds the ink storage portion of the ink container, storage property in the outer box, and the like.

  S indicates the length of the second member 109b. The length S is preferably 20 to 35% with respect to the full length P in consideration of an impact resistance function due to a shortened portion of the ink container that holds the ink storage portion, storage property in the outer box, and the like.

  T indicates the length of the member 109a. The length T is preferably 20 to 35% with respect to the full length P in consideration of the buffer function of the protective member, the assemblability of the outer box, and the like.

  U indicates the width of the first position regulating member 108a. The width U is preferably 50 to 100% with respect to the width of the ink lead-out portion in consideration of the position regulating force of the ink lead-out portion and the assembly property of the ink cartridge.

  V indicates the length of the first position regulating member 108a. The length V is preferably 10% to 45% with respect to the height of the ink lead-out part in consideration of the position regulating force of the ink lead-out part, the storage capacity of the ink container and the like.

  W indicates the width of the second position restricting member 108b. The width W is preferably 10% to 35% with respect to the width of the ink lead-out part in consideration of the position regulating force of the ink lead-out part, the assemblability of the outer box, and the like.

  X indicates the length of the second position restricting member 108b. The length X is preferably 10 to 45% with respect to the height of the ink lead-out portion in consideration of the position regulating force of the ink lead-out portion, the storage capacity of the ink container, and the like. Other reference numerals are the same as those in FIGS. 1, 3, and 4.

  The following effects can be obtained by using the ink cartridge of the present invention shown in FIGS. 1) The movement of the ink outlet portion of the ink container in the ink cartridge is restricted by the position restriction member (first position restriction member, second position restriction member), and the end of the ink storage portion is moved by the protection member. By being regulated, resistance to vibration and dropping during transportation and handling has been improved, and it has become possible to prevent damage to the ink storage section, and it has become possible to transport and handle with peace of mind. 2) The outer box of the ink cartridge is made by folding and folding a single development board (one piece material) along the folding line without using adhesives, staples, etc., and the material is also a single material. Therefore, disassembly after use is facilitated, and when the ink cartridge main body is disposed of, reuse as a paper material is facilitated, and environmental suitability is improved.

  Next, each member constituting the ink cartridge of the present invention will be described. The material used for the ink lead-out portion according to the present invention is not particularly limited, but it is most preferable to use a thermoplastic resin in terms of cost and ease of production. The production method can also be produced by an injection molding method as described in the general Japan plastic molding industry handbook. The thermoplastic resin to be used is not particularly limited as long as injection molding can be performed, but general resins such as polyethylene, polystyrene, polyamide, polyacetal, polycarbonate, and polypropylene can be used.

As a thermoplastic film used for an ink accommodating part, a multilayer thermoplastic film is preferable. The rigidity of the multilayer thermoplastic film is as follows: 1) oxygen permeability, 2) bonding strength of the ink lead-out portion with the bonding portion, and 3) considering handling properties, 7.9 × 10 ^{−7 to} 1.9 × 10 ⁻⁶ Nm ² is preferable, and 6.7 × 10 ^{−7 to} 3.1 × 10 ⁻⁶ Nm ² is more preferable.

  The thickness of the multilayer thermoplastic film is related to the rigidity, and maintains a preferable range of rigidity. The thickness is 73 to 123 μm in consideration of 1) strength as an ink storage portion, 2) handleability, and 3) environmental load. Is more preferable, and it is 83-113 micrometers.

An inorganic vapor deposition film, an aluminum vapor deposition film, or an aluminum foil may be used for the multilayer thermoplastic film. Thin film handbooks p879-p901 (Japan Society for the Promotion of Science), vacuum technology handbooks p502-p509, p612, p810 (Nikkan Kogyo Shimbun), vacuum handbook revised editions p132-p134 (ULVAC Japan Vacuum Technology KK) Inorganic films as described in (1). For example, Cr ₂ O ₃ , Ta ₂ O ₃ , ZrN, SiC, TiC, PSG, Si ₃ N ₄ , single crystal Si, amorphous Si, W, AI ₂ O _{3 and the} like are used. Among these, the most preferable inorganic vapor deposition film is alumina (AI ₂ O ₃ ) from the viewpoint of the strength and transparency of the vapor deposition film. As a method for forming an inorganic vapor-deposited film, vacuum technology handbook and packaging technology Vol. 8, for example, by resistance or high frequency induction heating method, electrobeam (EB) method, plasma (PCVD) or the like. The thickness of the deposited film is preferably in the range of 40 to 200 nm, more preferably in the range of 50 to 180 nm.

  The thermoplastic resin film used as the base material of the inorganic vapor deposition layer includes ethylene tetrafluoroethyl copolymer (ETFE), high density polyethylene (HDPE), biaxially oriented polypropylene (0PP), polystyrene (PS), polymethyl methacrylate ( PMMA), stretched nylon 6 (ONy), polyethylene terephthalate (PET), polycarbonate (PC), polyimide, polyether styrene (PES), and other film materials used for general packaging films can be used.

  Low density, which is a polymer film (for example, a polymer film described in Toray Research Center, Inc., a new development of functional packaging materials) used as a general packaging material as a thermoplastic resin film used via a vapor-deposited film sheet Polyethylene (LDPE), high density polyethylene (HDPE), linear low density polyethylene (LLDPE), medium density polyethylene, unstretched polypropylene (CPP), stretched polypropylene (OPP), stretched nylon (ONy), polyester (PET), cellophane Polyvinyl alcohol (PVA), expanded vinylon (OV), ethylene-vinyl acetate copolymer (EVOH), vinylidene chloride (PVDC) and the like can be used. It is also possible to use aluminum foil instead of the vapor deposition film sheet.

  Of these thermoplastic films, a multilayer film made by coextrusion with a different film, a multilayer film made by laminating at different stretching angles, etc. can be used as needed. Furthermore, it is naturally possible to combine the density and molecular weight distribution of the film used to obtain the required physical properties of the packaging material. As the innermost thermoplastic film, low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and low density polyethylene (LDPE) produced using a metallocene catalyst, linear low density polyethylene (LLDPE), A film in which these films and a high density polyethylene (HDPE) film are mixed and used is used. Of these, LLDPE produced using a metallocene catalyst is preferable from the viewpoint of melting temperature and strength, and any LLDPE that is generally commercially available can be used. For example, Ube Industries 'Umerit, Dow Chemical Japan's AFFINITY, Elite, Nippon Polyolefin's Harmolex LL, Nippon Polychem's Kernel 57L, Mitsui Chemicals' Evolue, Sekisui Film West Japan Co., Ltd. Ramilon Super, Tamapoli Co., Ltd. SE Series, Tosero Co., Ltd. Tosero T. U. X-FCS, T.W. U. X-TCS, Dazai FL manufactured by Nimura Chemical Industry Co., Ltd., Metalloace manufactured by Mitsubishi Chemical Kojin Pax Co., Ltd., WMX manufactured by Wada Chemical Industry Co., Ltd., FV202 manufactured by Sumitomo Chemical Co., Ltd., and the like.

  When not using an inorganic vapor deposition layer, it can select from the above-mentioned thermoplastic films suitably, and may be a single body as needed, or can laminate | stack and use 2 or more types of films. For example, CPP / OPP, PET / OPP / LDPE, Ny / OPP / LDPE, CPP / OPP / EVOH, Saran UB / LLDPE (where Saran UB is a vinylidene chloride / acrylic acid ester copolymer resin manufactured by Asahi Kasei Corporation) K-OP / PP, K-PET / LLDPE, K-Ny / EVA (where K is a film coated with vinylidene chloride resin) and the like are used.

  As the method for producing the laminated film, various generally known methods such as those described in pages 40 to 48 of the May 1990 issue of Convertec are used. For example, wet lamination, dry lamination, hot It can be made by using a melt lamination method, an extrusion lamination method, or a thermal lamination method. Depending on the material used, it can be made by a multilayer inflation system.

  Adhesives used for laminating are generally known as described in Convertech January 1996 pages 18-22, October 1997 pages 13-17, pages 21-25. Adhesive can be used.

  When the ink stored in the ink storage unit is an ultraviolet curable type, it is preferable to use the following materials as materials used for the ink storage unit and the ink lead-out unit in order to further improve the light shielding function. For the ink storage part, it is preferable to use an aluminum vapor-deposited film, a laminated film using an aluminum foil, and a laminated film having a layer added with carbon black. The ink lead-out portion is preferably made of a material obtained by adding white or carbon black to the above-mentioned material for the ink lead-out tube and the sealing member.

As the material used for the outer box, any material that is generally used for boxes, such as paper materials such as paperboard and cardboard, and thermoplastic resin, can be used, but it is made of paper from the viewpoint of reducing environmental impact. It is preferable. As the paper material, it is possible to use white paperboard or cardboard which is a general paperboard as described in the latest paper processing manual, Tech Times Co., Ltd. Preferably basis weight 300 to 700 g / m ² as a paperboard, and more preferably 400-600 g / m ^2. If it is less than 300 g / m ² , it may be difficult to maintain the strength to withstand handling and transportation. If it exceeds 700 g / m ² , the workability when manufacturing the outer box may be deteriorated, or the quality may be excessive and the environmental load may be increased. The thickness is preferably 260 to 1140 μm, more preferably 480 to 920 μm. If the thickness is less than 260 μm, it may be difficult to maintain the strength to withstand handling and transportation. If it exceeds 1140 μm, it may be overpacked and the environmental load may be increased.

  As the corrugated cardboard, common A flute to E flute double sided cardboard and double sided corrugated cardboard as described in Tech Times Co., Ltd. are preferably used, but there is no particular limitation. It can be appropriately selected according to the size of the ink container.

  On the surface of the ink cartridge of the present invention, a display for identifying the ink therein is displayed, and as a display method, it may be displayed directly on the surface of the cartridge, or a display for identification is provided. A method of attaching a label may be used.

The ink according to the present invention is not particularly limited, and ultraviolet curable ink, dispersed ink, reactive ink, and the like can be used. Examples of the ultraviolet curable ink include, for example, JP-A Nos. 10-324836, 2002-167537, 2002-179967, 2002-241654, 2003-147233, 2003-306622, 2003-326691, and 2003. 342503, 2004-18716, 2004-59810, 2004-59857, 2004-124077, 2004-131588, 2004-131589, 2004-131725, 2004-143136, 2004-182933, 2004- And ultraviolet curable inks described in 196936 and the like.
Examples of the dispersed ink and the reactive ink include JP-A-11-152417, JP-A-11-152418, JP-A-2000-327966, JP-A-2001-2963, JP-A-2001-158164, JP-A-2001-354886, JP-A-2002-60656, and JP-A-2003. 138172, 2003-138179, 2003-147234, 2003-147235, 2003-147236, 2003-147239, 2003-147240, 2003-147241, etc. .

  Hereinafter, although the effect of the present invention is concretely explained by an example, the present invention is not limited to these.

Example 1
An ink cartridge was prepared using the following materials.

(Preparation of ink container)
As a multilayered thermoplastic film, PET 12 μm / aluminum foil 9 μm / ONy 15 μm / LLDPE 20 μm / black LLDPE 50 μm was used, and the tube was formed into a cylindrical shape by the center seal method. The joining member of the ink lead-out portion shown in b) was inserted and joined by thermal welding. Thereafter, the ink was filled under a reduced pressure condition, and one of the open ports was sealed by thermal welding to produce an ink pack having a form shown in FIG. The size of the ink storage part of the produced ink pack was such that the length on the short side was 245 mm, the length on the long side was 570 mm, and the capacity was 4000 ml. The diameter of the flange member attached to the ink introduction tube having an inner diameter of 2.2 mm and an outer diameter of 2.8 mm was 33 mm, the thickness was 3 mm, and the interval between the two flange members was 30 mm. . The rigidity of the used multilayer thermoplastic film was 1.3 × 10 ⁻⁶ Nm ² . The rigidity is a value measured using a tensile tester PSC-100 manufactured by Shimadzu Corporation.

(Production of development substrate)
A development substrate shown in FIG. 5 was produced with corrugated cardboard of B flute produced by using a corrugated base paper having a basis weight of 160 g / m ² and a thickness of 3 mm for the liner and the core. When producing the development substrate, two sets were produced by changing the dimensions of the position regulating member and the protective member of the completed ink cartridge as shown in Table 1. 1-1 to 1-41.

(Production of ink cartridge)
The produced development substrates a to z and the produced ink container are bent along the folding line attached to the development substrate according to the flow shown in FIG. 101-141.

Evaluation Table 2 shows the results of performing the test according to the test methods shown below for the drop resistance and vibration resistance of each of the produced samples 101 to 141 and evaluating the evaluation ranks shown below.

Drop resistance After dropping vertically from a height of 90 cm onto a concrete floor with the ink outlet side and the ink storage side facing downward, open the outer box of the ink cartridge and visually inspect the ink storage for damage did.

Vibration resistance Using a vibration tester BF-UA manufactured by IDEX, after vibrating for 52 minutes at an amplitude of 46 Hz and an acceleration of 1.3 G, the outer case of the ink cartridge is opened, and the ink container is visually observed for damage. did.

Drop resistance evaluation rank ○: No damage is observed in the joint portion of the ink storage portion with the ink outlet portion and the seal portion at the rear end of the ink storage portion △: The joint portion of the ink storage portion with the ink outlet portion and the ink storage portion Ink bleeding is confirmed in the seal part at the rear end. X: Ink leakage is confirmed from the joint part of the ink storage part with the ink outlet part and the seal part at the rear end of the ink storage part. No damage is confirmed in the storage unit. △: Scratches due to rubbing with the inner surface of the outer box that does not cause a problem in use are confirmed on the front and back of the ink storage unit. ×: Pinholes are generated in the ink storage unit and ink leakage occurs. It is confirmed

  The effectiveness of the present invention was confirmed.

It is a schematic perspective view of an ink cartridge. FIG. 2 is a schematic perspective view of an ink container housed in the ink cartridge shown in FIG. 1. FIG. 2 is an enlarged schematic cross-sectional view along AA ′ in FIG. It is an expansion schematic sectional drawing in alignment with BB 'of (b) of FIG. It is the schematic of the expansion | deployment board | substrate of the outer case of the ink cartridge shown in FIG. FIG. 6 is a schematic flow diagram for producing the ink cartridge shown in FIG. 1 by bending each part of the development substrate shown in FIG. 5 along the crease line and superimposing them. FIG. 2 is a development view of an outer box of the ink cartridge shown in FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ink cartridge 101 Outer box 102 Top surface 102a Locking flap 103 Window part 104 Bottom part 104a 1st bottom part 104b 2nd bottom part 105 Notch part 106a, 106b Long side wall 106a1 1st side wall 106a2 2nd side wall 106b1 Plug-in type locking member 107a Front short side wall 107b Rear short side wall 108a First position restricting member 108b Second position restricting member 109 Protective member 2a Ink container 3a Ink outlet part 3a2 Joint part 3a4 Ink takeout part 4 Ink storage part 403 First seal Part 404 Second seal part 405 Third seal part

Claims (10)

In an ink cartridge for an ink jet recording apparatus in which an ink container having an ink outlet portion and an ink storage portion is stored in an outer box,
The outer box is produced by folding and folding a single development substrate along a folding line,
A position regulating member that regulates the position of the ink lead-out portion inside the outer box;
A protective member for protecting the ink storage portion;
An ink for an ink jet recording apparatus, wherein the ink container is stored in a state where the position of the ink outlet portion is regulated by the position regulating member, and the vicinity of the rear end portion of the ink containing portion is sandwiched by the protective member. cartridge. The outer box has a cylindrical body having a rectangular bottom, a top surface, two long side walls, and two short side walls,
The bottom is composed of a first bottom and a second bottom,
2. The inkjet according to claim 1, wherein one of the long side walls is a double side wall including a first side wall and a second side wall, and the other side is a single side wall. Ink cartridge for recording apparatus. The position restriction member includes a first position restriction member provided at one end of the first bottom portion of the outer box, and a first position restriction member provided at a position facing the first position restriction member inside the short side of the top surface. The ink cartridge for an ink jet recording apparatus according to claim 1, further comprising a two-position regulating member. The second bottom part constituting the bottom part of the outer box is fixed by a plug-in type flap provided on the long side of the second bottom part and a plug-in type locking member provided on a single side wall. The ink cartridge for an ink jet recording apparatus according to any one of claims 1 to 3. The short side wall on the first position regulating member side of the outer box has a plug provided on the short side having a plug-in type flap provided on the short side wall and a second position regulating member on the top surface. The ink cartridge for an ink jet recording apparatus according to any one of claims 1 to 4, wherein the ink cartridge is fixed by a type lock member. The ink cartridge for an ink jet recording apparatus according to claim 1, wherein the protective member is provided at one end of the first bottom portion. 7. The inkjet recording apparatus according to claim 1, wherein the outer box has a first cutout portion at an end of a bottom portion on which the first position restriction member is provided. ink cartridge. The ink cartridge for an ink jet recording apparatus according to claim 1, wherein the outer box has a second cutout portion on a top surface. The development substrate includes a first bottom plate that forms a rectangular first bottom portion of the outer box,
A first position restricting member flap for forming a first position restricting member on one short side of the first bottom plate and a protective member flap for forming a protecting member on the other short side;
A first side plate forming a first side wall constituting a double side wall of the outer box and a second side plate forming a single side wall are connected to one of the long side sides of the first bottom plate,
One side is connected to the second side plate, and a cut portion is provided to form a plug-in lock member across the second side plate and the first bottom plate,
The top plate forming the rectangular top surface portion of the outer box is connected to the long side of the second side plate,
The first position restriction of the second bottom plate forming the second position restriction member flap and the rectangular second bottom of the outer box on the short side of the top plate on the same side as the first position restriction member flap. A locking flap that is fixed to the short side on the same side as the member flap is connected, and a third side plate that forms a second side wall constituting the double side wall of the outer box is connected to the long side, and at least A second cutout is provided at one location,
Connecting the second bottom plate forming the rectangular second bottom portion of the outer box to the long side of the third side plate;
A first side wall flap that forms a short side wall on the short side of the second bottom plate on the same side as the first position regulating member flap, and a second side wall that forms a short side wall on the opposite short side. The side wall flap is connected, the first cutout is provided in the vicinity of the short side, and the locking flap is connected on the long side. An ink cartridge for an ink jet recording apparatus according to the description. The ink cartridge for an inkjet recording apparatus according to claim 1, wherein the development substrate is a cardboard.

Images