JP2006095813A - Liquid ejector and its liquid container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid ejector in which falling of sealant can be prevented easily and inexpensively without fusing it and the sealant can be arranged at a part of a liquid supply passage requiring sealing, and to provide a liquid container of the liquid ejector. <P>SOLUTION: The liquid ejector 10 comprises a member 60 for holding a sealant 50B being arranged in a liquid supply passage 40 supplying liquid to a head 20 so as not to fall off wherein the holding member 60 has a portion 70 for receiving the sealant 50B arranged in the liquid supply passage 40, and a portion for securing the receiving portion 70 to the liquid supply passage 40 side by fitting it to the liquid supply passage 40 side in order to prevent falling of the sealant 50B from the liquid supply passage 40. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a liquid ejecting apparatus including a holding member that holds a sealing material disposed in a liquid supply path that supplies a liquid ejecting head, and a liquid container of the liquid ejecting apparatus.

As a liquid ejecting apparatus that ejects liquid onto a target, an ink jet recording apparatus that performs printing by ejecting ink droplets from a recording head onto a recording medium is used. Is ejected to record an image of a desired character or figure.
This type of ink jet recording apparatus has an ink supply path for supplying ink from an ink cartridge to a recording head. A seal material is provided in a portion of the ink supply path that needs to be sealed. For example, a seal material is disposed in a portion requiring a seal between the self-sealing valve (pressure reducing valve) and the recording head in the middle of the ink supply path. The ink supply path from the self-sealing valve to the recording head side can supply ink from the self-sealing valve side to the recording head by inserting a needle on the recording head side into the sealing material. .
Conventionally, a tape material (film material) has been used as a member for holding this type of sealing material. For example, there is a tape material that is fixed by welding to a cylindrical member to maintain a sealed state (for example, Patent Document 1).
JP-A-11-129489 (page 4, FIG. 8)

  In Patent Document 1, as described above, the sealing material needs to be welded and fixed to the cylindrical member, and there are many welding processes, and high cost is inevitable. For example, in order to weld and fix such a tape material, the welding film is first cut with scissors, and the cut film is placed on the portion to be welded. When a cut film is placed on the welded portion, the film needs to be positioned with respect to the portion to be welded by being guided by a misalignment prevention jig.

Then, a film and a welding part are set with respect to a welding machine, and a film is welded. After the film-welded portion is removed from the welding machine, the misalignment prevention jig is also removed.
Unnecessary portions of the deposited film are cut with scissors, and then a cross hole for inserting a needle is opened as necessary to complete the sealing material.
Thus, there are many steps of welding the tape material to the welded portion, and the cost is unavoidable.
Accordingly, the present invention solves the above-mentioned problems, and can easily and inexpensively prevent the seal material from falling off without having to weld the tape material, and can arrange the seal material on the portion requiring the seal of the liquid supply path. An object of the present invention is to provide a liquid ejecting apparatus and a liquid container for the liquid ejecting apparatus.

In the present invention, the above object is a liquid ejecting apparatus including a holding member that holds and holds a sealing material disposed in a liquid supply path that supplies liquid to the head, and the holding member includes: A receiving portion for receiving the sealing material disposed in the liquid supply path; and fitting the receiving portion into the liquid supply path side in order to prevent the sealing material from dropping from the liquid supply path. This is achieved by a liquid ejecting apparatus having a fixing portion for fixing to the liquid supply path side.
According to the configuration of the present invention, the receiving portion of the holding member is for receiving the sealing material disposed in the liquid supply path. The fixing portion of the holding member fixes the receiving portion to the liquid supply path side by being fitted to the liquid supply path side in order to prevent the sealing material from dropping off from the liquid supply path.
Thereby, the sealing material arranged in the liquid supply path is received by the receiving part, and the fixing part of the holding member is fitted to the liquid supply path side, so that the sealing material is not dropped into the liquid supply path together with the receiving part. Thus, the tape material can be arranged easily and inexpensively, and the welding work of the tape material becomes unnecessary.

In the present invention, the fixing portion may be a fitting convex portion that protrudes from the receiving portion, and the fitting convex portion may be hooked and fixed to a hole provided on the liquid supply path side. desirable.
According to the configuration of the present invention, the fixing portion is a fitting convex portion that protrudes from the receiving portion. This fitting convex portion is hooked and fixed in a hole provided on the liquid supply path side.
As a result, the sealing material can be easily disposed with the receiving portion so as not to fall off in the liquid supply path by simply hooking and fixing the fitting convex portion with respect to the hole portion.

In the present invention, it is desirable that the receiving portion be elastically deformable when the fitting convex portion is hooked and fixed to the hole portion.
According to the configuration of the present invention, when the fitting convex portion is hooked and fixed to the hole portion, the receiving portion can be elastically deformed.
As a result, by simply elastically deforming the receiving portion, the fitting convex portion can be hooked into the hole portion and easily fixed.

In the present invention, it is preferable that a through hole for a needle member for allowing the needle member to pass through the sealant and enter the liquid supply path is formed in the receiving portion.
According to the structure of this invention, the through-hole of the needle member is formed in the receiving part. A needle member for entering the liquid supply path through the sealing material is passed through the through hole.
As a result, the needle member can easily enter the liquid supply path through the sealing material simply by passing through the through hole of the receiving portion.

In the present invention, it is preferable that the liquid supply path has an inclined guide surface for guiding the fitting convex part to the hole part on the liquid supply path side.
According to the configuration of the present invention, the liquid supply path has the inclined guide surface for guiding the fitting convex part to the hole on the liquid supply path side.
Thereby, the fitting convex part can be reliably guided to the hole part along the inclined guide surface, and the sealing material can be arranged so as not to fall off reliably.

In the present invention, it is preferable that the plurality of fitting protrusions are formed to protrude in parallel around the through hole of the needle member.
According to the configuration of the present invention, the plurality of fitting protrusions are formed to protrude in parallel around the through hole of the needle member.
Thereby, by using a plurality of fitting convex portions, the sealing material can be more reliably arranged together with the receiving portion so as not to fall off to the liquid supply path side.

In the present invention, the liquid supply path is a path that is arranged between the liquid container that stores the liquid and the head and supplies the liquid from the liquid container to the head, and the liquid supply path includes the liquid It is desirable that a pressure adjusting unit for adjusting the pressure of the liquid from the container is disposed, and the sealing material is disposed in the pressure adjusting unit.
According to the configuration of the present invention, the liquid supply path is a path that is arranged between the liquid container for storing the liquid and the head and supplies the liquid from the liquid container to the head. A pressure adjusting unit for adjusting the pressure of the liquid from the liquid container is disposed in the liquid supply path. The sealing material is disposed in the pressure adjusting unit.
Thereby, although the pressure adjustment part of a liquid supply path is a part which needs a seal | sticker, a sealing material can be easily hold | maintained without dropping | omitting with respect to each pressure adjustment part which requires this seal | sticker.

It is preferable that the sealing material is disposed in the pressure adjusting unit, and the holding member is disposed in a space occupied by the pressure adjusting unit.
According to the configuration of the present invention, the sealing material is arranged in the pressure adjusting part, and the holding member is arranged in the range of the occupied space of the pressure adjusting part.
Thereby, since the holding member is arranged within the range of the space occupied by the pressure adjusting unit, even when the plurality of pressure adjusting units are arranged side by side, the plurality of pressure adjusting units are spaced apart from each other. The liquid ejecting apparatus can be reduced in size.

In the present invention, the above object is a liquid container that is mounted on a liquid ejecting apparatus and supplies a liquid to a head, wherein a part of the liquid container supplies the liquid to the head side. A supply path, and the liquid container includes: a seal member disposed in the liquid supply path; and a holding member that holds the seal material with respect to the liquid supply path. A receiving portion for receiving the sealing material disposed in the liquid supply path, and the sealing material being fitted on the liquid supply path side in order to prevent the sealing material from dropping from the liquid supply path. And a fixing part for fixing the receiving part to the liquid supply path side. This is achieved by the liquid container of the liquid ejecting apparatus.
Thereby, the sealing material arranged in the liquid supply path is received by the receiving part, and the fixing part of the holding member is fitted to the liquid supply path side, so that the sealing material is not dropped into the liquid supply path together with the receiving part. Thus, the tape material can be arranged easily and inexpensively, and the operation of welding the tape material to the liquid container becomes unnecessary.

FIG. 1 shows an ink jet recording apparatus 10 that is an embodiment of a liquid ejecting apparatus of the present invention.
The ink jet recording apparatus shown in FIG. 1 is also called an ink jet printer. The ink jet recording apparatus 10 has a main body 1. The main body 1 includes two cartridge holders 2, 3, a pressure pump 4, a carriage 5, a recording head 20, a guide shaft 6, a movement operation unit 7, a liquid supply path 40, and a control unit 100.

  Each of the cartridge holders 2 and 3 contains a plurality of ink cartridges 11. In the example of FIG. 1, the cartridge holders 2 and 3 each contain four ink cartridges 11. For this purpose, a total of eight ink cartridges 11 are mounted on the main body 1, and each ink cartridge 11 has, for example, mat black, cyan, magenta, yellow, photo black, light cyan, light magenta, and gray. Contains ink. Since the ink cartridge 11 is not directly mounted on the carriage 5 but is accommodated in the cartridge holders 2 and 3, the ink jet recording apparatus 10 is a so-called off-carriage ink jet printer.

The pressure pump 4 applies pressure to each ink cartridge 11 by sending compressed air to the cartridge holders 2 and 3. Accordingly, each ink in the ink cartridge 11 can be supplied to the recording head 20 side on the carriage 5 side through the liquid supply path 40.
The guide shaft 6 is provided horizontally with respect to the main body 1. The carriage 5 can be positioned by reciprocating along the main scanning direction T along the guide shaft 6 by the operation of the movement operation unit 7. The movement operation unit 7 has, for example, a motor and a toothed belt driven by the motor. The toothed belt is attached to the carriage 5, and the carriage 5 moves in the main scanning direction T together with the toothed belt. A recording head 20 is provided below the carriage 5. A nozzle plate 21 is fixed to the lower surface of the recording head 20.
The recording paper 22 is a kind of recording medium, and can record characters and images with ink ejected from the recording head 20. The recording paper 22 can be transported, for example, in the direction perpendicular to the paper surface of FIG. 1 by a paper transport mechanism (not shown).

The recording head 20 in FIG. 1 is an example of a head, but can also be called a print head.
The liquid supply path 40 is an ink supply path for supplying ink from each ink cartridge 11 to the recording head 20 side. The liquid supply path 40 includes a tube 41 and a pressure adjustment unit 43 between one ink cartridge 11 and the recording head 20. Similarly, a tube 41 and a pressure adjusting unit 43 are provided between each ink cartridge 11 and the recording head 20. Therefore, each liquid supply path 40 that connects each ink cartridge 11 and the recording head 20 is configured by a unit of a tube 41 and a pressure adjustment unit 43.
In the example of FIG. 1, eight liquid supply paths 40 are arranged in parallel between the eight ink cartridges 11, the carriage 5, and the recording head 20.

FIG. 2 shows an enlarged structure example of the tube 41, the pressure adjusting unit 43, the carriage 5 and the recording head 20 of the liquid supply path 40 shown in FIG.
The pressure adjusting unit 43 is a unit for adjusting the pressure of the ink when supplying ink from the ink cartridge 11 which is a liquid container to the recording head 20 side. A seal material 50 </ b> B is disposed below the pressure adjustment unit 43.

A recording head 20 is provided below the carriage 5. The carriage 5 and the recording head 20 have an ink path 51. The ink path 51 connects the pressure adjusting unit 43 and the nozzle opening 52 of the recording head 20. A plurality of nozzle openings 52 are arranged in the direction perpendicular to the paper surface in FIG. Each nozzle opening row 53 includes a plurality of nozzle openings 52. For example, the nozzle opening rows 53 are arranged in parallel to the direction perpendicular to the paper surface of FIG. The nozzle openings are formed in the nozzle plate surface 21 </ b> A of the nozzle plate 21. Each nozzle opening 52 is connected to a pressure chamber 54.
The ink cartridge 11 is a liquid container that stores ink, and each color ink is an example of a liquid.

FIG. 3 representatively shows one ink cartridge 11, one liquid supply path 40, and a holding member 60. FIG. 4 shows the recording head 20 in addition to the ink cartridge 11, the liquid supply path 40, and the holding member 60 of FIG. 3.
3 and 4, the ink 1000 is stored in the ink cartridge 11. The ink 1000 in the ink cartridge 11 passes through the flow path in the pressure adjusting unit 43 through the flexible tube 41 and reaches the sealing material 50B. A self-sealing valve (pressure reducing valve) 43 </ b> A is accommodated in the pressure adjustment unit 43. By the operation of the self-sealing valve, the pressure of the ink sent from the ink cartridge 11 through the tube 41 to the recording head 20 through the needle member 61 can be reduced and adjusted.
For example, when pressure fluctuation occurs in the ink in the tube 41 due to the acceleration / deceleration of the carriage, the ejection of ink droplets becomes unstable, so the pressure adjustment unit 43 suppresses ink pressure fluctuation.

  An ink path 63 is provided in the protruding portion 62 of the pressure adjusting unit 43. The sealing material 50B can be detachably fitted to the lower end of the ink path 63. As will be described later, the sealing material 50B can be fixed with one touch so as not to drop off by the holding member 60. The holding member 60 is a member for arranging the sealing material 50B so as not to drop off in the ink path 63 and holding it by a one-touch operation.

As shown in FIG. 4, a needle member 61 protrudes from the upper portion 20 </ b> B of the recording head 20. The needle member 61 is provided so as to protrude in the Z2 direction. The needle member 61 is provided so as to protrude from each pressure adjusting unit 43 shown in FIGS. 1 and 2.
The needle member 61 passes through the holding member 60 as shown in FIG.
Accordingly, the ink 1000 in the ink cartridge 11 can be supplied to the recording head 20 side through the tube 41, the pressure adjusting unit 43, and the ink path 63.

FIG. 5 shows an enlarged view of the protruding portion 62, the sealing material 50B, and the holding member 60, and the holding member 60 does not hold the sealing material 50B. FIG. 6 shows a state in which the holding member 60 is combined with the protruding portion 62 and is a stopper for the sealing material 50B. FIG. 6 is an enlarged view showing a state in which the sealing material 50B and the needle member 61 are sealed and enter the ink path 63.
FIG. 7 is a perspective view showing a state before the holding member 61 holds the sealing material 50B, and FIG. 8 is a perspective view showing the state before the holding member 61 holds the sealing material 50B from another angle. is there.

With reference to FIG. 5 and FIG. 6, the structural example of the sealing material 50B is demonstrated.
The ink path 66 of the sealing material 50B can be continuously connected to the ink path 63 on the same axis.
The seal member 50B can be detachably attached to the outer peripheral surface 50C by being elastically deformed and fitted to the inner peripheral surface 63D of the ink path 63. The sealing material 50B is a substantially cylindrical member and is fixed by welding or the like. The sealing material 50B is made of an elastically deformable material such as rubber.

Next, the structure of the holding member 60 will be described with reference to FIGS.
The protruding portion 62 and the holding member 60 are made of plastic, for example. The holding member 60 has a receiving portion 70 and a plurality of fitting convex portions 71, and is three-dimensionally molded. As shown in FIG. 6, the receiving portion 70 is a portion for mechanically receiving the sealing material 50 </ b> B in order to prevent the sealing material 50 </ b> B from dropping from the ink path 63 that is a part of the liquid supply path.

  As shown in FIGS. 7 and 8, for example, four inset convex portions 71 are provided extending from the receiving portion 70. The four fitting protrusions 71 are provided so as to protrude, for example, in parallel with each other in the Z2 direction. One set of the fitting convex portions 71 and 71 are formed in parallel on one side of the receiving portion 70 with a space therebetween. Another set of fitting convex portions 71 and 71 are formed in parallel on the opposite side of the receiving portion 70 at intervals. A claw portion 73 is formed at the front end portion of each fitting convex portion 71 so as to protrude in opposite directions.

  As shown in FIGS. 7 and 8, the receiving portion 70 is a substantially cylindrical member, but a through hole 75 of the needle member 61 is formed in the flat portion 70C of the receiving portion 70B. The central axis CL of the through hole 75 of the needle member 61 is substantially coincident with the central axis of the ink path 63 and the ink path 66. The inner diameter E shown in FIG. 5 of the through hole 75 of the needle member is larger than the maximum outer diameter F of the portion through which the needle member 61 shown in FIG. As a result, the needle member 61 can be fitted into the ink path 66 and the ink path 63 through the through hole 75 as shown in FIG.

The distal end portion of the needle member 61 is tapered, and the distal end portion of the needle member 61 has a thin ink passage 77.
When the needle member 61 is caused to enter the Z2 direction toward the ink paths 66 and 63, the distal end portion 78 of the needle member 61 is caused to enter the ink path 63 by elastically deforming the inside of the seal material 50B. Thereby, the sealing property of the ink between the sealing material 50B and the front end portion 78 is ensured.

As shown in FIG. 7, the protruding portion 62 has four holes 76. The hole 76 is a hole for the claw part 73 to be fitted and fixed by elastically deforming and fitting the claw part 73 of each fitting convex part 71. The hole 76 is, for example, a square hole.
The protruding portion 62 has an inclined guide portion 80 in the vicinity of the hole 76. As shown in FIG. 9A, the inclined guide portion 80 is a surface that is inclined from the lower end portion 62 </ b> A of the protruding portion 62 toward the hole 76.
When the four fitting convex portions 71 of the holding member 61 are fitted along the Z2 direction, the inclined guide portions 80 center the positions of the corresponding fitting convex portions 71, and the four claw portions 73 are hole portions. 76 can be surely guided. FIG. 9A shows a state before the four claw portions 73 are attached to the hole 76, and FIG. 9B shows that the claw portion 73 is fitted into the hole 76 and attached. It shows the later state.
The claw portion 73 of the fitting convex portion 71 can be fitted into the hole portion 76 with a simple and one-touch operation.

  As shown in FIGS. 8 and 10, the width W of the receiving portion 70 of the holding member 60 is set to be the same or smaller than the width W1 of the case of the pressure adjusting portion 43. For this reason, the holding member 60 can be disposed within the space occupied by the pressure adjusting unit 43. Therefore, as shown in FIG. 10, even when the plurality of pressure adjusting portions 43 are arranged close to each other with a gap W <b> 2, the holding member 60 does not interfere with the close arrangement of these pressure adjusting portions 43. . For this reason, although the holding member 60 is provided in each pressure adjusting unit 43, the ink jet recording apparatus 10 can be reduced in size.

Next, an operation example in which the sealing material 50B and the holding member 60 are attached to the protruding portion 62 of the pressure adjusting unit 43 will be described.
As shown in FIG. 5, the sealing material 50 </ b> B is fitted into the ink path 63 of the protruding portion 62 from the lower end portion of the protruding portion 62 while being elastically deformed. In this state, it can be considered that the ink path 63 falls off due to transportation vibration or the like.

Therefore, the holding member 60 is used in order to prevent the sealing material 50B from falling off reliably and inexpensively. The holding member 60 is detachably fitted to the lower end portion of the protruding portion 62 from the state of FIG. 5 as shown in FIG.
That is, the nail | claw part 73 of the four fitting convex parts 71 shown in FIG. When the claw portion 73 is fitted into the hole portion 76, it can be easily fitted by the elastic deformation of the receiving portion 70. In this way, in the state shown in FIG. 6, the holding member 60 can mechanically hold the sealing material 50 </ b> B with one touch so as not to drop off from the ink path 63.

When the claw portion 73 is fitted in the hole 76, the four fitting recesses 71 of the holding member 60 are guided by the inclined guide portions 80 and 80 shown in FIG. The claw portion 73 of the holding member 60 can be easily and surely fitted into the hole 76.
As shown in FIG. 6, the needle member 61 of the recording head 20 can enter the ink path 66 of the sealing material 50B and the ink path 63 side of the protruding portion 62 along the Z2 direction. When pulling out the needle member 61, it may be pulled out in the Z1 direction.

Alternative Embodiment FIG. 11 illustrates another embodiment of the present invention.
In FIG. 11, the ink cartridge 11, the ink path 40, the sealing material 50B, and the holding member 60 are shown.
Since the ink cartridge 11, the sealing material 50B, and the holding member 60 shown in FIG. 11 are the same as the ink cartridge 11, the sealing material 50B, and the holding member 60 shown in FIGS. 3 and 4, the description thereof will be used.
The difference in FIG. 11 is the structure of the pressure adjusting unit 443 in the liquid supply path 40. The tube 41 of the liquid supply path 40 is the same as the tube 41 shown in FIG.

A pressure adjustment unit 443 shown in FIG. 11 is provided in place of the pressure adjustment unit 43 shown in FIG. 3 and is also called a pressure damper.
The pressure adjusting unit 443 can suppress ink pressure fluctuation, and for example, pressure fluctuation occurs in the ink in the tube 41 that is an ink supply tube accompanying acceleration / deceleration of the carriage. Since the ink pressure fluctuation makes the ejection of ink droplets unstable, the pressure adjusting unit 443 is provided to suppress the ink pressure fluctuation.

  The tube 41 is connected to the ink inlet 444. The ink inlet 444 is connected to the connection groove 445, and the connection groove 445 can supply ink to the ink chamber 446, the connection channel 447 and the needle member 61 side. The elastic sheet 448 can be elastically deformed in a direction in which the ink chamber 446 is contracted and expanded. The pressure fluctuation of the ink in the ink chamber 446 can be absorbed by the compliance (displacement) due to the deformation of the elastic sheet 448.

  A protruding portion 462 is provided below the pressure adjustment portion 443. The protruding portion 462 can adopt the same structure as the protruding portion 62 shown in FIG. The ink path 663 of the protruding portion 462 is connected to the connection channel 447. The ink path 66 of the sealing material 50 </ b> B is connected to the ink path 663. The sealing material 50B is held by the holding member 60 so as not to drop off. When the claw portions 73 of the four fitting convex portions 71 of the holding member 60 are fitted into the hole portions 76, the sealing material 50 </ b> B can be disposed in the ink path 663 so as not to drop off by the holding member 60. .

Yet another embodiment FIG. 12 illustrates yet another embodiment of the present invention.
In the embodiments of the present invention described so far, the liquid supply path 40 disposed between the ink cartridge and the recording head has a structure including a tube 41 and a pressure adjusting unit 43, and the so-called off-carriage type ink jet. The present invention is applied to a type recording apparatus.
On the other hand, the embodiment of FIG. 12 shows an example of an ink cartridge 500 used in an on-carriage type ink jet recording apparatus. The ink cartridge 500 has a protruding portion 762 at the lower portion thereof.
The ink cartridge 500 is directly mounted on the carriage 5 as shown in FIG. The needle member 61 of the carriage 5 fits in the ink path 66 and the ink path 763 in the Z2 direction, whereby the ink 1000 in the ink cartridge 500 can be supplied to the recording head side through the needle member 61.

  The structure of the protruding portion 762 shown in FIG. 12A is the same as the structure of the protruding portion 62 shown in FIG. The sealing material 50B is disposed in the ink path 763 of the protruding portion 762. The holding member 60 can be fixed with a single touch by fitting the sealing material 50B to the protruding portion 762 side, and the sealing material 50B can be reliably prevented from falling off.

In the embodiment of the present invention, the sealing material arranged in the liquid supply path is received by the receiving part, and the fixing part of the holding member is fitted into the liquid supply path side to supply the sealing material together with the receiving part. It can be arranged easily and inexpensively so as not to fall off the path, and the welding work of the sealing material at the time of assembly becomes unnecessary.
In the embodiment of the present invention, the sealing material can be easily arranged together with the receiving portion so as not to drop into the liquid supply path by simply hooking and fixing the fitting convex portion to the hole portion. By simply elastically deforming the receiving portion, the fitting convex portion can be hooked on the hole portion and fixed easily. The needle member can easily enter the liquid supply path simply by passing through the through hole of the receiving portion.

  In the embodiment of the present invention, the fitting convex portion can be surely guided to the hole portion along the inclined guide surface, and the sealing material can be arranged so as not to fall off reliably. By using a plurality of fitting protrusions, the sealing material can be reliably arranged together with the receiving portion so as not to drop off to the liquid supply path side. The pressure adjusting portion of the liquid supply path is a portion that requires a seal, but the sealing material can be easily held without dropping off with respect to each pressure adjusting portion that requires this seal. Since the holding member is arranged within the range of the space occupied by the pressure adjusting unit, the plurality of pressure adjusting units should be arranged at a small interval from each other even when the plurality of pressure adjusting units are arranged side by side. Thus, the liquid ejecting apparatus can be reduced in size.

In the embodiment of the present invention, for example, when trying to remove the needle member 61 from the protruding portion 62 shown in FIG. 6, the sealing material 50 </ b> B is removed from the ink path 63 of the protruding portion 62 from the holding member 60. Can be prevented.
In the embodiment of the present invention, the hole portion 76 of the protruding portion 62 has a rectangular hole shape, but the shape is not limited to this, and the shape of the claw portion 73 of the fitting portion 71 with the hole portion 76 can be arbitrarily selected. it can.
It is desirable that the receiving portion 70 of the holding member 60 has a small thickness so that it can be easily elastically deformed in order to ensure good assembly when the holding member 60 is mounted. The through hole 75 in the holding member 60 desirably has an inner diameter that is at least larger than the outer diameter of the distal end portion 78 of the needle member 61 so that the needle member 61 can be easily penetrated.

  The off-carriage type ink jet recording apparatus shown in FIG. 1 includes, for example, eight ink cartridges 11. However, the present invention is not limited to this, and it is of course possible to have one to seven or nine or more ink cartridges.

  The present invention is not limited to an ink jet recording apparatus, but is a recording head used in an image recording apparatus such as a printer, a color material ejecting head used in manufacturing a color filter such as a liquid crystal display, an organic EL display, and an FED (surface emitting display). The present invention can also be applied to a liquid ejecting apparatus using a liquid ejecting head that discharges liquid, such as an electrode material ejecting head used for electrode formation, a bioorganic matter ejecting head used for biochip manufacturing, a sample ejecting apparatus as a precision pipette, etc. .

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the claims.
A part of each configuration of the above embodiment can be omitted, or can be arbitrarily combined so as to be different from the above.

1 is a diagram illustrating an ink jet recording apparatus that is an example of a liquid ejecting apparatus of the invention. FIG. FIG. 2 is an enlarged view illustrating a liquid supply path, a carriage, and a recording head in FIG. The figure which shows an ink cartridge, a liquid supply path | route, a sealing material, and a holding member. FIG. 3 is a diagram illustrating an ink cartridge, a liquid supply path, a sealing material, a holding member, and a recording head. Sectional drawing which shows a protrusion part, a sealing material, and a holding member. The figure which shows a mode that the sealing material is hold | maintained by the holding member, and the needle member has entered into the ink path. The perspective view which shows a protrusion part and a holding member. The perspective view seen from another angle which shows a protrusion part and a holding member. The figure which shows a mode that the insertion convex part of a holding member is guided with respect to a hole part, and is inserted. The figure which shows the example which arranged the pressure adjustment part with which the holding member was mounted | worn in order. The figure which shows another embodiment of this invention. The figure which shows another embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 5 ... Carriage, 10 ... Inkjet recording apparatus (an example of a liquid ejecting apparatus), 11 ... Ink cartridge (an example of a liquid container), 20 ... Recording head, 40 ... Liquid supply path, 43 ... Pressure adjusting part, 50B ... Sealing material, 60 ... Holding member, 70 ... Receiving part, 71 ... Insertion convex part, 75 ... Passage hole of needle member, 76 ...・ Hole part, 80 ... Inclination guide part

Claims (9)

A liquid ejecting apparatus including a holding member that holds and holds a sealing material disposed in a liquid supply path for supplying liquid to a head,
The holding member is
A receiving portion for receiving the sealing material disposed in the liquid supply path;
A fixing portion for fixing the receiving portion to the liquid supply path side by being fitted to the liquid supply path side in order to prevent the sealing material from dropping off from the liquid supply path; A liquid ejecting apparatus.   The fixing portion is a fitting convex portion that protrudes from the receiving portion, and the fitting convex portion is fixed by being hooked into a hole provided on the liquid supply path side. Item 2. The liquid ejecting apparatus according to Item 1.   The liquid ejecting apparatus according to claim 2, wherein the receiving portion is elastically deformable when the fitting convex portion is hooked and fixed to the hole portion.   3. The liquid according to claim 2, wherein a through hole of a needle member is formed in the receiving portion to allow a needle member to pass through the sealing material into the liquid supply path. Injection device.   The liquid ejecting apparatus according to claim 2, wherein the liquid supply path includes an inclined guide surface for guiding the fitting convex portion to the hole on the liquid supply path side.   The liquid ejecting apparatus according to claim 4, wherein the plurality of fitting protrusions are formed to protrude in parallel around a through hole of the needle member.   The liquid supply path is a path that is arranged between a liquid container that stores the liquid and the head and supplies the liquid from the liquid container to the head, and the liquid supply path includes the liquid container from the liquid container. The liquid ejecting apparatus according to claim 1, wherein a pressure adjusting unit that adjusts a pressure of the liquid is arranged, and the sealing material is arranged in the pressure adjusting unit. .   The liquid ejecting apparatus according to claim 7, wherein the sealing material is disposed in the pressure adjusting unit, and the holding member is disposed in a space occupied by the pressure adjusting unit. A liquid container mounted on a liquid ejecting apparatus for supplying liquid to a head,
A part of the liquid container is a liquid supply path for supplying the liquid to the head side, and the liquid container includes a seal member disposed in the liquid supply path, and the seal material with respect to the liquid supply path. A holding member for retaining and retaining,
The holding member is
A receiving portion for receiving the sealing material disposed in the liquid supply path;
A fixing portion for fixing the receiving portion to the liquid supply path side by fitting the seal material to the liquid supply path side in order to prevent the sealing material from dropping from the liquid supply path; A liquid container of a liquid ejecting apparatus comprising:

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