JP7031153B2 - Liquid storage container - Google Patents

Description

The present invention relates to a liquid container.

As one aspect of the liquid consuming device, an inkjet printer (hereinafter, also simply referred to as "printer") that consumes ink as a liquid to execute a printing process is known. The printer is usually fitted with a liquid container that holds the ink supplied to the printer. Some such liquid storage containers have an injection port that is a liquid inlet for receiving ink injection by the user (for example, Patent Document 1 below).

Japanese Unexamined Patent Publication No. 2014-46626

In such a liquid container, foreign matter or air bubbles may be mixed in the ink during the ink injection work by the user. Foreign matter and air bubbles in the ink cause the ink supply to the printer to be obstructed.

In the liquid container of Patent Document 1, a filter for removing foreign substances and air bubbles contained in the ink is provided in the flow path from the ink chamber in which the ink is stored to the printer. However, in the liquid container of Patent Document 1, since the filter is provided at a position close to the ink injection port, foreign matter that has entered from the injection port easily reaches the filter. Therefore, there is a possibility that the filter is clogged by the foreign matter that has entered from the injection port, and the supply of ink to the printer is obstructed.

As described above, in the liquid container, there is still room for improvement in suppressing the deterioration of the ink supply performance due to the foreign matter and air bubbles present in the ink. These problems are not limited to the liquid storage container that stores the ink supplied to the inkjet printer, but are common to the liquid storage container that stores the liquid supplied to the liquid consuming device.

The present invention has been made to solve at least a part of the above-mentioned problems, and can be realized as the following forms.

[1] According to one embodiment of the present invention, the liquid supplied to the liquid consuming device that consumes the liquid is accommodated, and the liquid is inserted into and mounted on the liquid consuming device in an insertion direction intersecting the gravity direction. Liquid storage container is provided. The liquid storage container of this form has a shape in which the insertion direction is the longitudinal direction, and has a first end portion on the insertion direction side and a second end portion on the opposite side to the insertion direction. A container body in which a storage chamber for containing the liquid is provided; in the insertion direction, the container body is provided on the first end side of the container body, and the liquid storage container is mounted on the liquid consuming device. With a liquid outlet that is connected to the liquid consuming device and allows the liquid in the storage chamber to flow out to the liquid consuming device in the mounted state; A liquid inlet that communicates with the containment chamber and receives injection of the liquid into the containment chamber from the outside of the container body; a foreign substance contained in the liquid provided between the containment chamber and the liquid outlet. It is equipped with a supplementary filter and; The filter is provided at a position closer to the liquid outlet than the liquid inlet in the insertion direction.
According to this form of the liquid container, since the filter is provided at a position away from the liquid inlet, it is possible to prevent foreign matter contained in the liquid injected from the liquid inlet from reaching the filter. .. Therefore, the occurrence of clogging of the filter due to the foreign matter is suppressed, and the supply of the liquid from the liquid storage container to the liquid consuming device is suppressed. Therefore, deterioration of the liquid supply performance due to foreign matter or air bubbles in the liquid is suppressed.

[2] In the liquid storage container of the above embodiment, the filter is arranged and separated into an upstream space connected to the storage chamber and a downstream space connected to the liquid outlet by the filter. The filter chamber may be located below the storage chamber in the mounted state.
According to this liquid storage container, since the filter chamber is provided below the storage chamber, the liquid can be guided from the storage chamber to the filter chamber by gravity. Therefore, the flow of the liquid from the liquid storage container to the liquid consumption device can be made smoother, and the liquid supply performance to the liquid consumption device by the liquid storage container is enhanced.

[3] In the liquid storage container of the above form, the upstream space may be located below the filter in the mounted state.
According to this form of the liquid container, the liquid passes through the filter in the direction opposite to the direction of gravity. Therefore, foreign matter removed from the liquid by the filter can be settled below the filter by gravity. Therefore, it is possible to suppress the occurrence of clogging of the filter.

[4] In the liquid storage container of the above embodiment, the bottom surface of the storage chamber is provided with a first communication port and a second communication port communicating with the filter chamber, and the first communication port is provided with the first communication port. The second communication port is provided at a position closer to the liquid inlet than the filter in the insertion direction, and the second communication port is provided at a position opposite to the first communication port across the filter in the insertion direction. May be done.
According to this form of the liquid storage container, when the liquid is injected into the storage chamber through the liquid inlet, the air in the upstream space of the filter chamber is introduced while the liquid flows into the upstream space of the filter chamber from the first communication port. It can be escaped to the containment room from the second communication port. Therefore, it is possible to prevent air from staying in the space on the upstream side of the filter chamber, and it is possible to prevent the air from being hindered from being supplied to the liquid consuming device due to such air retention.

[5] In the liquid container of the above embodiment, the filter is composed of a film-like member that allows the liquid to pass in the thickness direction, and the filter is inserted when viewed along the thickness direction. It has a first pair of corners at both ends of a side located on the direction side and a second pair of corners at both ends of a side located on the opposite side of the insertion direction. One corner of the first pair of corners is located closer to the insertion direction than the other corner, and one of the second pair of corners is the other corner. The outer peripheral shape of the passage region, which is located on the side opposite to the insertion direction from the portion and through which the liquid passes in the plane of the filter, may be a shape along the outer peripheral shape of the filter.
According to this form of the liquid container, the area of the filter can be increased by the amount that one of the corners is provided at the protruding position on both sides of the filter in the insertion direction. Therefore, the effect of removing foreign matter and air bubbles by the filter can be enhanced by that amount. In addition, the front and back of the filter can be easily identified when the filter is attached.

[6] In the liquid storage container of the above embodiment, in the mounted state, the bottom surface of the storage chamber faces the filter chamber so that the filter chamber side is located below the liquid inlet side in the insertion direction. It may be inclined downward.
According to this form of the liquid storage container, the fluidity of the liquid to the filter chamber can be further enhanced, and the liquid supply performance to the liquid consuming device can be enhanced.

[7] In the liquid container of the above embodiment, the filter may have a multilayer structure in which two or more members having different grain roughness of pores through which the liquid passes are laminated.
According to this form of the liquid container, the filter can efficiently remove foreign substances of various sizes.

[8] In the liquid storage container of the above embodiment, the inner wall of the storage chamber hangs from the upper surface side of the storage chamber toward the bottom surface, and the lower end thereof is located between the upper surface and the bottom surface of the storage chamber. The portion may be provided between the liquid inlet and the filter in the insertion direction.
According to this form of the liquid storage container, the liquid injected from the liquid inlet can be transmitted to the inner wall portion and guided to the bottom surface of the storage chamber. Therefore, the foreign matter mixed in the injected liquid can be settled from the inner wall portion to the region on the liquid inlet side, and the foreign matter does not reach the filter.

The plurality of components of each embodiment of the present invention described above are not all essential, and may be used to solve some or all of the above-mentioned problems, or part or all of the effects described herein. In order to achieve the above, it is possible to change, delete, replace a part of the plurality of components with new other components, and partially delete the limited contents, as appropriate. Further, in order to solve a part or all of the above-mentioned problems, or to achieve a part or all of the effects described in the present specification, the technical features included in the above-mentioned embodiment of the present invention. It is also possible to combine some or all with some or all of the technical features contained in the other embodiments of the invention described above to form an independent embodiment of the invention.

The present invention can also be realized in various forms other than the liquid container. For example, a liquid consuming device provided with a liquid containing container, a liquid consuming device suitable for mounting the liquid containing container, a container body used for the liquid containing container, a liquid flow path structure in the liquid containing container, a filter arrangement structure, and the like. Can be realized with.

The schematic perspective view which shows the structure of the liquid consumption apparatus. The first schematic perspective view of the liquid containing container of 1st Embodiment. A second schematic perspective view of the liquid storage container of the first embodiment. A third schematic perspective view of the liquid storage container of the first embodiment. The schematic plan view of the liquid containing container of 1st Embodiment. The schematic side view of the liquid containing container of 1st Embodiment. The schematic bottom view of the liquid containing container of 1st Embodiment. The schematic front view of the liquid containing container of 1st Embodiment. The schematic rear view of the liquid containing container of 1st Embodiment. Schematic exploded perspective view of the liquid storage container of the first embodiment. Schematic side view of the opening housing member. The schematic perspective view which shows the opening housing member which the film member was welded. Schematic cross-sectional view of an opening housing member showing the bottom surface of the containment chamber. Schematic bottom view of the opening housing member. Schematic cross-sectional view of the filter chamber. Schematic perspective view when the end portion of the opening housing member is viewed from below. Schematic cross-sectional view of the first wall. The schematic perspective view which shows the 2nd end side of a liquid containing container. Schematic side view showing the second end side of the liquid storage container. The schematic plan view which shows the 2nd end side of a liquid containing container. Schematic cross-sectional view of the second end side of the liquid storage container. The schematic perspective view which illustrates the state when the lid member is moved in the closing direction. The schematic perspective view which shows the liquid injection operation into a liquid container. The schematic perspective view which shows the part where the atmosphere introduction part is formed. Schematic perspective view showing the internal structure of the atmosphere introduction part. Schematic side view showing the part where the atmosphere introduction part is formed. A schematic perspective view showing a liquid supply unit in which a plurality of liquid storage containers are mounted. Schematic plan view showing a liquid supply unit in which a plurality of liquid storage containers are mounted. Schematic cross-sectional view of the liquid container and the liquid supply section. The schematic side view of the opening housing member provided in the liquid storage container of 2nd Embodiment. The schematic sectional drawing which shows the structure of the filter chamber in the liquid containing container of 3rd Embodiment. The schematic perspective view which shows the structure of the inner wall part of 4th Embodiment. The schematic side view which shows the structure of the inner wall part of 4th Embodiment. The schematic perspective view which shows the structure of the inner wall part of 5th Embodiment. The schematic side view which shows the structure of the inner wall part of 5th Embodiment. The schematic perspective view which shows the part on the 1st end side of the liquid containing container of 6th Embodiment. The schematic perspective view which shows the mounting state of the liquid storage container of 7th Embodiment. The schematic perspective view which shows the state of the connection work of the liquid storage container of 8th Embodiment schematically. The schematic perspective view which shows the state of disconnection of the liquid containing container of 8th Embodiment schematically.

A. First Embodiment:
After explaining the configuration of the liquid consumption device 500 to which the liquid storage container 10A of the first embodiment is mounted with reference to FIG. 1, the liquid storage container 10A of the first embodiment is referred to with reference to FIGS. 2 to 26. The configuration of is explained.

A1. Liquid consumption device configuration:
FIG. 1 is a schematic perspective view showing the configuration of the liquid consuming device 500. FIG. 1 shows arrows X, Y, Z indicating three directions orthogonal to each other. It should be noted that the arrows X, Y, and Z are appropriately illustrated so as to correspond to FIG. 1 in each of the other figures referred to in the present specification.

The directions indicated by the arrows X, Y, and Z correspond to the arrangement posture of the liquid consuming device 500 in the normal use state. The "normal use state" means a state in which the liquid consuming device 500 is arranged on a horizontal plane and used. In the following, the posture when the liquid consuming device 500 is in a normal use state will be described as a reference. Further, in the following, the directions along the directions pointed by the arrows X, Y, and Z are referred to as "X direction", "Y direction", and "Z direction", respectively. The direction pointed by the arrow X in each X direction is called "+ X direction", and the opposite direction is called "-X direction". Similarly, regarding the Y and Z directions, the directions pointed to by the arrows Y and Z are called "+ Y direction" and "+ Z direction", and the opposite directions are called "-Y direction" and "-Z direction", respectively. Called.

The X, Y, and Z directions will be described in the order of the Z direction, the Y direction, and the X direction. The Z direction indicates a direction parallel to the direction of gravity. The -Z direction is the direction of gravity, and the + Z direction is the opposite direction to the direction of gravity. In the present specification, the term "up" or "down" basically means the vertical direction with respect to the direction of gravity. The Y direction indicates a direction parallel to the horizontal plane, and indicates a front-rear direction (depth direction) of the liquid consuming device 500. The −Y direction is a direction from the front side to the back side of the liquid consuming device 500, which is supposed to be faced by the user of the liquid consuming device 500. The + Y direction is a direction from the back surface side to the front surface side of the liquid consuming device 500. The X direction indicates a direction parallel to the horizontal plane, and indicates a left-right direction (width direction) of the liquid consuming device 500. The + X direction indicates a direction from the left side to the right side when facing the front surface of the liquid consuming device 500, and the −X direction indicates a direction from the right side to the left side.

The liquid consuming device 500 of the first embodiment is an inkjet printer. The liquid consumed by the liquid consuming device 500 is ink. The liquid consuming device 500 ejects ink toward a medium and records ink dots on the medium to form an image. The medium is, for example, printing paper.

The liquid consuming device 500 includes a device main body portion 501 and a leg portion 502. In the first embodiment, the apparatus main body 501 has a shape with the X direction as the longitudinal direction, and has the largest width in the X direction. The leg portion 502 is provided below the device main body portion 501 and horizontally supports the device main body portion 501. The legs 502 are provided with wheels 503 for facilitating the movement of the liquid consuming device 500.

The apparatus main body 501 has a control unit 510, a head 511, and a carriage 512 inside. In FIG. 1, for convenience, the arrangement positions of the control unit 510, the head 511, and the carriage 512 are illustrated by broken lines. The control unit 510 controls the drive of each component in the liquid consuming device 500. The control unit 510 includes at least a microcomputer including a central processing unit and a main storage device. The control unit 510 exerts various functions when the central processing unit reads various programs into the main storage device and executes them. The control unit 510 may be configured by a circuit instead of the microcomputer.

The head 511 injects a liquid toward the surface of a medium (not shown) being conveyed below itself. The head 511 has a liquid chamber for accommodating a liquid and a plurality of nozzles opening downward at the bottom surface of the liquid chamber (not shown). Under the control of the control unit 510, the head 511 discharges the liquid from the nozzle by a known method such as application of pressure to the liquid in the liquid chamber by a piezo element.

The carriage 512 mounts the head 511 on the lower surface and carries the head 511 in the main operation direction under the control of the control unit 510. In the first embodiment, the main scanning direction of the liquid consuming device 500 is the direction along the X direction. As a drive mechanism for moving the carriage 512, the apparatus main body 501 includes a guide shaft for guiding the movement of the carriage 512, a motor for generating a driving force for moving the carriage 512, and a pulley for transmitting the driving force to the carriage 512. , Equipped with. In addition, illustration and detailed description about them are omitted.

An insertion port 515 for introducing a medium from the outside is provided at the upper end portion of the apparatus main body 501 on the −Y direction side. The insertion port 515 is provided as a slit-shaped opening extending in the X direction and opening in the + Z direction. A medium accommodating portion 516 is provided below the insertion slot 515. Inside the medium accommodating portion 516, a medium different from the medium introduced from the insertion slot 515 is stored in a rolled state (not shown). A discharge port 517 from which the medium is discharged is provided on the front surface of the apparatus main body 501. The discharge port 517 is provided as a slit-shaped opening extending in the X direction and opening in the + Y direction.

In the liquid consuming device 500, the medium inserted from the insertion port 515 or the medium stored in the medium accommodating portion 516 is headed by a transport roller (not shown) provided inside the apparatus main body 501. It is transported below 511. The medium is conveyed along the Y direction in the region below the head 511. In the first embodiment, the sub-scanning direction of the liquid consuming device 500 is a direction along the Y direction. The medium passes through the lower region of the head 511 and is discharged from the discharge port 517.

In the liquid consuming device 500, the control unit 510 reciprocates the head 511 in the main scanning direction while transporting the medium in the sub-scanning direction described above in the lower region of the head 511, and is predetermined based on the print data. At the timing, ink droplets are ejected from the head 511. As a result, ink dots are recorded on the medium at positions determined based on the print data, and an image based on the print data is formed.

An operation unit 518 is provided on the front surface of the device main body unit 501. In the first embodiment, the operation unit 518 is provided at the end portion on the + X direction side. The operation unit 518 has a display unit 518i that displays information for the user, and a plurality of operation buttons 518b that accept the user's operation.

The device main body 501 has a liquid supply section 520. In the first embodiment, the liquid supply unit 520 is provided below the operation unit 518 so that the user who operates the operation unit 518 can easily access it. The liquid supply unit 520 supplies the liquid to be discharged to the head 511. A plurality of liquid storage containers 10A are detachably attached to the liquid supply unit 520. FIG. 1 illustrates a state in which five liquid storage containers 10A are attached.

The liquid storage container 10A stores the liquid supplied to the liquid consumption device 500. The liquid supply unit 520 includes a suction pump 524, and the liquid of the liquid storage container 10A is sucked by the suction pump 524 through the flexible tube 513 and supplied to the head 511. The suction pump 524 and the tube 513 are illustrated in FIGS. 26-28, which will be referred to later.

A container insertion port 521 into which the liquid storage container 10A to be mounted is inserted is opened in the + Y direction on the front surface of the apparatus main body 501. In the liquid consuming device 500, a plurality of liquid storage containers 10A are configured to be inserted in parallel with the container insertion port 521 of the liquid supply unit 520 in a state of being arranged in the X direction. Each liquid container 10A contains inks of different colors.

In the liquid consuming device 500, the liquid storage container 10A is inserted in a direction intersecting the gravitational direction with respect to the liquid consuming device 500. In the first embodiment, the direction in which the liquid storage container 10A is inserted into the liquid consumption device 500 is the −Y direction. Hereinafter, the −Y direction, which is the direction in which the liquid storage container 10A is inserted into the liquid consuming device 500, is also simply referred to as an “insertion direction”.

In the liquid consuming device 500, each liquid storage container 10A is attached to the liquid consuming device 500 in a state where a part thereof protrudes in the insertion direction. Hereinafter, the state in which each liquid storage container 10A is appropriately mounted on the liquid consumption device 500 is also simply referred to as a “mounting state”. The details of the mechanism for mounting the liquid storage container 10A to the liquid consumption device 500 will be described later.

A2. Liquid storage container configuration:
A2-1. Outline of the external configuration of the liquid storage container:
The outline of the external configuration of each liquid storage container 10A will be described with reference to FIGS. 2 to 9. FIG. 2 is a schematic perspective view of the liquid storage container 10A when viewed from the + Y direction side and the + Z direction side. FIG. 3 is a schematic perspective view of the liquid storage container 10A when viewed from the −Y direction side and the + Z direction side. FIG. 4 is a schematic perspective view of the liquid storage container 10A when viewed from the −Y direction side and the −Z direction side. FIG. 5 is a schematic plan view of the liquid storage container 10A when viewed in the −Z direction. FIG. 6 is a schematic side view of the liquid storage container 10A when viewed in the + X direction. FIG. 7 is a schematic low-profile view of the liquid storage container 10A when viewed in the + Z direction. FIG. 8 is a schematic front view of the liquid storage container 10A when viewed in the −Y direction. FIG. 9 is a schematic rear view of the liquid storage container 10A when viewed in the + Y direction. In the present specification, all the descriptions in the X, Y, and Z directions regarding the liquid storage container 10A are the arrangement of the liquid storage container 10A in the mounted state mounted on the liquid consuming device 500 in the normal use state. Based on posture.

A2-1-1. The wall of the container body:
The liquid storage container 10A has a container body 11 in which a storage chamber 31 in which a liquid is stored is provided. In FIGS. 2 to 9, for convenience, the position of the accommodation chamber 31 is indicated by a broken line. The containment chamber 31 is illustrated in FIGS. 10-12, which will be referred to later.

The container body 11 has a shape in which the Y direction along the insertion direction is the longitudinal direction. in short. The container body 11 has a shape in which the length in the Y direction is longer than the length in the X and Z directions. In the first embodiment, the container body 11 has a substantially rectangular parallelepiped shape, and the length in the Y direction is larger than the width in the X direction and the height in the Z direction (FIGS. 2 to 4). The width of the container body 11 in the X direction is smaller than the height in the Z direction (FIGS. 8 and 9). The container body 11 is made of a resin member such as polypropylene (PP).

The container body 11 has a first end portion 12 and a second end portion 13, which are ends in the longitudinal direction thereof (FIGS. 2 to 7). The first end portion 12 is an end portion on the insertion direction side, that is, on the −Y direction side. The second end portion 13 is an end portion on the side opposite to the insertion direction, that is, on the + Y direction side.

The container body 11 has a first portion 15 and a second portion 16 (FIGS. 2 to 7). The first portion 15 is a portion exposed to the outside of the liquid consuming device 500 when the liquid storage container 10A is in the mounted state, and is a portion on the + Y direction side with respect to the container insertion port 521 (FIG. 1). ). The second portion 16 is a portion stored inside the liquid consuming device 500 when the liquid storage container 10A is in the mounted state, and is a portion on the −Y direction side with respect to the container insertion port 521. The above-mentioned first end portion 12 is included in the second portion 16 , and the second end portion 13 is included in the first portion 15 .

The container main body 11 has six wall portions 21 to 26 described below as a plurality of wall portions. In the present specification, the wall surface of the "wall portion" does not have to be formed in a flat shape, may be formed in a curved shape, and has a concave portion, a convex portion, a step, a groove, a bent portion, and an inclination. It may have a surface, a hole, a slit, or the like. Further, in the following description, "intersecting" the wall portions means that the wall surfaces of the wall portions actually intersect with each other and the extension surface of the wall surface of one wall portion intersects the wall surface of the other wall portion. It means that the state is one of the state where the wall surface is extended and the state where the extension surfaces of the wall surface of each of the two wall portions intersect with each other. A chamfered portion or the like constituting a curved surface may be interposed between the intersecting wall portions.

The first wall portion 21 is a tip wall portion, is located on the insertion direction side of the accommodation chamber 31, and has an outer wall surface facing the insertion direction (FIGS. 3 to 7 and 9). The second wall portion 22 is a rear end wall portion, and is located on the side opposite to the first wall portion 21 with the accommodation chamber 31 interposed therebetween in the insertion direction, and has an outer wall surface 22o facing in the direction opposite to the insertion direction. Has (Figs. 2 and 8). As shown in FIGS. 10 and 11 which will be referred to later, the inner wall surface 22i opposite to the outer wall surface 22o of the second wall portion 22 faces the accommodation chamber 31.

The third wall portion 23 is an upper surface wall portion, and intersects the first wall portion 21 and the second wall portion 22 at both ends in the Y direction (FIGS. 2, FIGS. 3, and 5). The third wall portion 23 has an upper wall surface 23s. The upper wall surface 23s is an outer wall surface of the liquid storage container 10A along the insertion direction, which is located above the storage chamber 31 and faces upward.

The fourth wall portion 24 is a bottom wall portion, intersects the first wall portion 21 and the second wall portion 22 at both ends in the Y direction, and faces the third wall portion 23 in the Z direction with the accommodation chamber interposed therebetween. (Fig. 4, Fig. 6, Fig. 7). In the present specification, the term "opposing" refers to a state in which objects facing each other are directly facing each other, and a state in which other objects intervene between the objects facing each other and indirectly face each other. including. The fourth wall portion 24 has a bottom wall surface 24s. The bottom wall surface 24s is the outer wall surface of the liquid storage container 10A along the insertion direction, is located below the storage chamber 31, and faces downward.

The fifth wall portion 25 is a left side wall portion and is located on the left side of the storage chamber 31 when the liquid storage container 10A is viewed in the insertion direction (FIGS. 2 and 8). The fifth wall portion 25 intersects the first wall portion 21, the second wall portion 22, the third wall portion 23, and the fourth wall portion 24 (FIGS. 2 and 3).

The sixth wall portion 26 is a right side wall portion and is located on the right side of the storage chamber 31 when the liquid storage container 10A is viewed in the insertion direction (FIGS. 5, 7, and 8). The sixth wall portion 26 intersects the first wall portion 21, the second wall portion 22, the third wall portion 23, and the fourth wall portion 24, and the fifth wall portion 26 sandwiches the accommodation chamber 31 in the X direction. It faces the portion 25.

A2-1-2. Liquid outlet:
The liquid storage container 10A has a liquid outlet 33 (FIGS. 3, FIG. 4, FIG. 9). The liquid outlet 33 is connected to the liquid consuming device 500 in the mounted state, and causes the liquid in the storage chamber 31 to flow out to the liquid consuming device 500. The liquid outlet 33 is provided on the first end portion 12 side of the container body 11 in the insertion direction. The liquid outlet 33 is open in the insertion direction at the first wall portion 21. The liquid outlet 33 is provided in the recess 34 recessed in the + Y direction in the first wall portion 21. Hereinafter, the recess 34 is also referred to as an “exit storage recess 34”. The configuration of the liquid flow path connecting the storage chamber 31 provided inside the container main body 11 and the liquid outlet 33 and the function of the outlet storage recess 34 will be described later.

A2-1-3. Liquid inlet:
The liquid storage container 10A has a liquid inlet 35 (FIGS. 2, FIG. 3, FIG. 5). FIG. 2 shows a state in which the lid member 85 is opened and the liquid inlet 35 is open, and FIG. 3 shows a state in which the lid member 85 is closed and the liquid inlet 35 is closed. There is. In FIGS. 3 and 5, for convenience, the position of the liquid inlet 35 is indicated by a broken line.

The liquid inlet 35 communicates with the storage chamber 31. The liquid inlet 35 receives the injection of liquid into the storage chamber 31 from the outside of the container body 11 by the user. The liquid inlet 35 is provided on the second end 13 side of the container body 11 in the insertion direction. The liquid inlet 35 is provided at a position closer to the second wall portion 22 which is the rear end wall portion than the first wall portion 21 which is the tip wall portion in the third wall portion 23 which is the upper surface wall portion. .. The circumference of the liquid inlet 35 is surrounded by the entrance peripheral wall portion 36. The entrance peripheral wall portion 36 is a tubular wall portion that protrudes upward in the third wall portion 23.

The liquid inlet 35 is located at the first portion 15 exposed to the outside of the liquid consuming device 500 in the mounted state (FIG. 1). Therefore, the user can replenish the liquid storage container 10A with the liquid while the liquid storage container 10A is attached to the liquid consumption device 500. The configuration around the liquid inlet 35 including the lid member 85 and the operation of injecting the liquid into the liquid inlet 35 by the user will be described later.

A2-1-4. Visual recognition part:
The liquid storage container 10A has a visual recognition portion 38 on the second wall portion 22 which is a rear end wall portion (FIGS. 2 and 8). The visual recognition unit 38 permeates the position of the liquid level of the liquid contained in the storage chamber 31 so that the user can visually recognize it from the outside of the container main body 11. The container body 11 is composed of at least a second wall portion 22 provided with a visual recognition portion 38, which is a translucent member having a light transmittance such that the liquid level of the liquid in the storage chamber 31 can be visually recognized. There is. In the liquid storage container 10A, the second wall portion 22 may be composed of a transparent member. Further, in the liquid container 10A, the entire container body 11 may be composed of a member having such light transmission. The visual recognition unit 38 is provided with a scale 39 as a guideline for the amount of liquid contained in the storage chamber 31. The details of the scale 39 will be described later.

According to the liquid storage container 10A, the user can measure the amount of liquid stored in the storage chamber 31 by the visual recognition unit 38 provided in the first portion 15 exposed to the outside of the liquid consumption device 500 in the mounted state. You can check. Therefore, it is possible to prevent the liquid in the liquid storage container 10A from running short while driving the liquid consumption device 500. Further, the user can perform the liquid injection work from the liquid inlet 35 while checking the amount of the liquid stored in the storage chamber 31 by the visual recognition unit 38.

A2-1-5. Handle:
The liquid storage container 10A is provided with a handle 40 on the fourth wall 24, which is the bottom wall (FIGS. 4 and 7). The handle portion 40 is a portion for the user to handle when attaching / detaching the liquid storage container 10A to / from the liquid consumption device 500. In the first embodiment, the handle portion 40 is formed as a recess to the extent that the user's fingertip can be hooked. The handle portion 40 is provided at a position closer to the second wall portion 22 than the first wall portion 21 in the insertion direction. The handle portion 40 is located at the first portion 15 exposed to the outside of the liquid consuming device 500 in the mounted state. Therefore, when the liquid storage container 10A is removed from the liquid consumption device 500, the user can easily touch the handle portion 40.

A2-1-6. Rail part:
A rail portion 41 is provided on the upper wall surface 23s of the third wall portion 23 of the liquid storage container 10A (FIGS. 2, FIGS. 3, and 5). The rail portion 41 is formed as a convex portion extending linearly along the insertion direction. The rail portion 41 projects at the central portion of the upper wall surface 23s in the X direction. The X direction corresponds to the width direction orthogonal to the insertion direction.

As used herein, the term "center" means a substantially central position, and the "central part" means a part that is separated from both ends to some extent. When the width of the upper wall surface 23s in the X direction is x, the rail portion 41 is located in the upper wall surface 23s, centered on the center of the upper wall surface 23s in the X direction, and the width in the X direction is within 0.5 · x. It may be formed inside. The width of the region in the X direction is preferably 0.3 · x or less, and more preferably 0.2 · x or less.

The length of the rail portion 41 in the Y direction is more than half the length of the container body 11 in the Y direction. The rail portion 41 is provided at a position slightly closer to the first wall portion 21 side in the insertion direction.

In the liquid storage container 10A, the rail portion 42 is also provided on the bottom wall surface 24s of the fourth wall portion 24 (FIGS. 4, FIG. 6 and FIG. 7). Hereinafter, for the sake of distinction, the rail portion 41 of the upper wall surface 23s is also referred to as a “first rail portion 41”, and the rail portion 42 of the bottom wall surface 24s is also referred to as a “second rail portion 42”. The second rail portion 42 projects at the central portion of the bottom wall surface 24s in the X direction. The position of the bottom wall surface 24s of the second rail portion 42 in the X direction is the same as the position of the upper wall surface 23s of the first rail portion 41 described above in the X direction. The second rail portion 42 is provided at a position displaced in the + Y direction with respect to the first rail portion 41 (FIG. 6).

The end portion of the first rail portion 41 on the −Y direction side is located on the −Y direction side of the end portion of the second rail portion on the −Y direction side. On the other hand, the end portion of the second rail portion 42 on the + Y direction side is located on the + Y direction side of the end portion of the first rail portion 41 on the + Y direction side. The length of the first rail portion 41 in the Y direction is longer than the length of the second rail portion 42 in the Y direction. A filter chamber wall portion 67f (described later) of the container lid member 62 is arranged on the −Y direction side of the second rail portion 42 (FIG. 7).

The rail portions 41 and 42 guide the moving direction of the liquid storage container 10A when the liquid storage container 10A is attached to and detached from the liquid consumption device 500. The rail portions 41 and 42 function as a portion on which the user rests his / her finger when grasping and transporting the liquid storage container 10A. In addition, the rail portions 41 and 42 have a function as a reference portion for positioning when assembling the liquid storage container 10A. Details of the functions of the rail portions 41 and 42 will be described later.

A2-1-7. Electrical connection:
The first end portion 12 of the liquid storage container 10A is provided with an electrical connection portion 50 that is electrically connected to the liquid consumption device 500 (FIGS. 3, 5, and 9). The control unit 510 of the liquid consuming device 500 acquires information about the liquid contained in the liquid storage container 10A by an electric signal received from the electrical connection unit 50. The "information about the liquid" includes, for example, the type of the liquid, the current capacity of the liquid in the liquid storage container 10A, and the like. Further, the control unit 510 electrically detects the mounting state of the liquid storage container 10A with respect to the liquid consuming device 500.

The electrical connection 50 is provided above the liquid outlet 33 (FIG. 9). The electrical connection portion 50 is composed of a substrate and is arranged in a recess 51 provided at a corner between the first wall portion 21 and the third wall portion 23 (FIG. 3). An inclined surface 51s facing diagonally upward between the + Y direction and the + Z direction is formed in the recess 51, and the electrical connection portion 50 is arranged on the inclined surface 51s. The electrical connection portion 50 is arranged so that the substrate surface 52 faces diagonally upward. A plurality of electrode plates 53 are arranged on the substrate surface 52 of the electrical connection portion 50 (FIG. 9). On the back surface of the substrate surface 52, an electric circuit unit 54 including a storage device for storing information about the liquid is provided. The electrical circuit section 54 is illustrated in FIG. 17, which will be referred to later.

When the liquid storage container 10A is mounted on the liquid consumption device 500, the connection terminal 527 (shown in FIG. 28, which is referred to later) of the liquid consumption device 500, which is urged downward by the elastic member, is an electrical connection portion. It contacts the electrode plate 53 of 50 from above. At this time, each electrode plate 53 receives a force in the −Z direction from the connection terminal 527 in addition to a force in the + Y direction when the liquid storage container 10A is inserted into the liquid consumption device 500. These two-way forces enhance the electrical connectivity of the electrical connection 50 to the liquid consuming device 500. Further, when the liquid storage container 10A is inserted into the liquid consumption device 500, the connection terminal 527 of the liquid consumption device 500 rubs the surface of each electrode plate 53, so that foreign matter such as oils and fats and dust adhering to the electrode plate 53 is present. Is removed. Therefore, the electrical connectivity of the electrical connection unit 50 to the liquid consumption device 500 is enhanced.

In the liquid storage container 10A, a groove portion 51 g extending along the Y direction is provided on the side wall surface of the recess 51 that sandwiches the electrical connection portion 50 in the X direction (FIG. 3). When the liquid storage container 10A is mounted on the liquid consumption device 500, a convex portion (not shown) of the liquid supply unit 520 of the liquid consumption device 500 is inserted into the groove portion 51g. As a result, the displacement of the electrical connection portion 50 of the liquid storage container 10A with respect to the connection terminal 527 of the liquid consumption device 500 is suppressed.

Since the electrical connection portion 50 is provided at the end opposite to the liquid inlet 35 in the Y direction, which is the longitudinal direction of the liquid storage container 10A, the liquid spilled from the liquid inlet 35 may adhere. It is suppressed. Since the electrical connection portion 50 is provided above the liquid outlet 33, the liquid dripping from the liquid outlet 33 is suppressed from adhering to the electrical connection portion 50. Further, the electrical connection portion 50 is provided in the recess 51. Therefore, when the liquid storage container 10A is removed from the liquid consumption device 500, the user may touch each electrode plate 53, or the electrical connection portion 50 may be damaged when the liquid storage container 10A falls. It is suppressed that it will be lost.

A2-1-8. Other components of the first wall:
The first wall portion 21 of the liquid storage container 10A is provided with a plurality of recesses 55 (FIGS. 3, FIG. 4, and FIGS. 9). The recess 55 is a bottomed hole recessed in the + Y direction. In the first embodiment, three recesses 55a, 55b, 55c are provided as the plurality of recesses 55 (FIG. 9). The first recess 55a is provided between the electrical connection portion 50 and the liquid inlet 35. The second recess 55b is provided below the liquid outlet 33. The third recess 55c is provided below the second recess 55b. The second recess 55b functions as a positioning portion that defines the position of the liquid storage container 10A when the liquid storage container 10A is mounted on the liquid consumption device 500.

A recess 58 that opens in the −Y direction and the −Z direction is provided at the corner portion between the first wall portion 21 and the fourth wall portion 24. When the liquid storage container 10A is attached to the liquid consumption device 500, the identification member 528 provided in the liquid consumption device 500 is housed in the recess 58. The identification member 528 is illustrated in FIG. 28, which will be referred to later. Details of the configuration and functions of the recesses 55 and 58 will be described later.

A2-2. Outline of assembly structure and internal structure of liquid storage container:
The assembly structure of the liquid storage container 10A and its internal structure will be outlined with reference to FIGS. 10 to 12. FIG. 10 is a schematic exploded perspective view of the liquid storage container 10A. FIG. 11 is a schematic side view of the opening housing member 60 when viewed in the + X direction. FIG. 12 is a schematic perspective view showing the opening housing member 60 to which the film member 63 is welded.

The container body 11 of the liquid storage container 10A is composed of an opening housing member 60, a container lid member 62, and a film member 63 (FIG. 10). The opening housing member 60 is a box-shaped member having a substantially rectangular parallelepiped shape, and is open in the −X direction, which is a direction intersecting the insertion direction (FIGS. 10 and 11).

The opening housing member 60 has a wall portion constituting the first wall portion 21, the second wall portion 22, the third wall portion 23, the fourth wall portion 24, and the sixth wall portion 26 of the liquid storage container 10A. (Figs. 10 and 11). The liquid outlet 33, the liquid inlet 35, the recess 51 in which the electrical connection portion 50 is arranged, the rail portions 41, 42, the handle portion 40, and the plurality of recesses 55 are provided in the opening housing member 60.

The opening housing member 60 has three recesses 61a, 61b, 61c that are recessed in the + X direction and open in the −X direction (FIG. 11). The first recess 61a intersects in the insertion direction between the wall portion constituting the third wall portion 23 which is the upper surface wall portion and the wall portion constituting the fourth wall portion 24 which is the bottom wall portion. It is open. The internal space of the first recess 61a constitutes the accommodation chamber 31. Hereinafter, the first recess 61a is also referred to as a “containment chamber recess 61a”. The internal space of the accommodation chamber recess 61a has a substantially rectangular parallelepiped shape. The internal space of the accommodation chamber recess 61a is formed over almost the entire opening housing member 60. The storage chamber 31 is configured to have a shape extending along the longitudinal direction of the container main body 11 inside the container main body 11 by the storage chamber recess 61a.

A plurality of reinforcing wall portions 64 are provided in the accommodating chamber recess 61a (FIGS. 10 and 11). The reinforcing wall portion 64 functions as a rib that suppresses deformation of the wall portion of the opening housing member 60. In the first embodiment, three reinforcing wall portions 64 are provided. Each reinforcing wall portion 64 extends in the Z direction in the accommodating chamber recess 61a. As used herein, "extended" means a state in which it extends seamlessly in a certain direction. The reinforcing wall portions 64 are arranged in the accommodation chamber recess 61 at predetermined intervals in the Y direction.

Each reinforcing wall portion 64 is connected to a wall portion constituting the third wall portion 23, a wall portion constituting the fourth wall portion 24, and a wall portion constituting the sixth wall portion 26. The end face on the −X direction side of each reinforcing wall portion 64 is the end face on the −X direction side of each wall portion constituting the first wall portion 21, the second wall portion 22, the third wall portion 23, and the fourth wall portion 24. It is located on the + X direction side. The end face of each reinforcing wall portion 64 on the −X direction side is not welded to the film member 63 (FIG. 12). In the liquid storage container 10A, the liquid can be distributed in the Y direction in the storage chamber 31 by forming a space between the entire end surface of each reinforcing wall portion 64 on the −X direction side and the film member 63. can. In the liquid storage container 10A, a recess recessed in the + X direction is provided on the end face of the reinforcing wall portion 64 on the −X direction side, and a recess other than the recess is provided on the end surface of the reinforcing wall portion 64 on the −X direction side. The film member 63 may be welded. In the case of this configuration, the recess functions as a flow path through which the liquid flows in the storage chamber 31.

An inner wall portion 65 is provided in the accommodating chamber recess 61a (FIGS. 10 and 11). The inner wall portion 65 hangs downward from the upper surface 31u side of the accommodation chamber 31 toward the bottom surface 31b, and the lower end 65e is located between the upper surface 31u and the bottom surface 31b of the accommodation chamber 31. The inner wall portion 65 extends in the entire accommodation chamber recess 61a in the X direction. The end portion of the inner wall portion 65 on the + X direction side is connected to the inner wall surface 26s which is the wall surface of the sixth wall portion 26 on the accommodation chamber 31 side. The end portion of the inner wall portion 65 on the −X direction side is welded and connected to the film member 63 (FIG. 10) constituting the inner wall surface on the −X direction side of the accommodation chamber 31.

The internal space of the accommodating chamber recess 61a, that is, the accommodating chamber 31, is partitioned into two regions A1 and A2 adjacent to each other in the insertion direction with the inner wall portion 65 interposed therebetween (FIG. 11). The inner wall portion 65 is provided at a position closer to the second wall portion 22 than the first wall portion 21 in the insertion direction. The inner wall portion 65 is located on the insertion direction side with respect to the liquid inlet 35. In the first embodiment, the inner wall portion 65 hangs down from the upper surface 31u of the storage chamber 31 below the inlet peripheral wall portion 36 located on the insertion direction side of the liquid inlet 35. Details of the configuration and function of the inner wall portion 65 will be described later. The plurality of reinforcing wall portions 64 described above are provided in the region A1 on the −Y direction side of the inner wall portion 65.

The internal space of the second recess 61b constitutes an atmosphere introduction portion 110 which is a passage for introducing outside air into the accommodation chamber 31. The second recess 61b is provided above the storage chamber recess 61a. The width of the second recess 61b in the Z direction is significantly smaller than the width of the accommodation chamber recess 61a in the Z direction. The second recess 61b extends from the center of the accommodation chamber 31 toward the first wall portion 21 in the Y direction. Details of the atmosphere introduction unit 110 configured by the second recess 61b will be described later.

The third recess 61c constitutes a part of the outlet flow path 78, which is a liquid flow path connecting the filter chamber 71 and the liquid outlet 33. In FIG. 11, since the liquid outlet 33 and the filter chamber 71 are hidden and invisible, their positions are marked with a broken line. The configuration of the filter chamber 71 will be described later. The third recess 61c bends in the + Z direction along the corner of the storage chamber recess 61a from the lower end region of the end portion of the storage chamber recess 61a on the −Y direction side, and extends in the + Z direction to the liquid outlet 33.

The openings of the three recesses 61a, 61b, 61c of the opening housing member 60 are commonly closed by the film member 63 (FIG. 12). The film member 63 is made of a material having flexibility, gas barrier property, and liquid impermeable property. The film member 63 is made of, for example, a resin film such as polyethylene terephthalate (PET), nylon, or polyethylene.

The film member 63 is welded to the end face of the wall portion 60w surrounding each of the three recesses 61a, 61b, 61c of the opening housing member 60 (FIG. 12). The wall portion 60w protrudes in the −X direction, and the positions of the end faces thereof in the −X direction are aligned. The film member 63 is welded to the end surface of the inner wall portion 65 on the −X direction side. The end face of the wall portion 60w in the −X direction and the end face of the inner wall portion 65 in the −X direction are aligned in the −X direction.

In the liquid storage container 10A of the first embodiment, the space constituting the storage chamber 31, the atmosphere introduction portion 110, and the outlet flow path 78 is simplified inside the container main body 11 by welding the film member 63 to the opening housing member 60. It is configured in. In the liquid storage container 10A, the sealing property of the liquid in the storage chamber 31 is enhanced by welding the film member 63. Further, by using the lightweight and thin film member 63, the weight and size of the liquid storage container 10A have been reduced.

In the liquid storage container 10A, the film member 63 welded to the opening housing member 60 is covered with the container lid member 62 (FIG. 10). The container lid member 62 has a main body wall portion 66 and two peripheral wall portions 67 and 68. The main body wall portion 66 is a flat plate-shaped portion constituting the fifth wall portion 25 of the container main body 11, and has a substantially rectangular shape.

The first peripheral wall portion 67 is provided at the upper end and the lower end of the main body wall portion 66, and constitutes an edge portion protruding in the + X direction in an eaves shape (FIG. 10). In FIG. 10, the peripheral wall portion 67 provided at the lower end of the main body wall portion 66 is hidden and cannot be seen. The peripheral wall portion 67 extends along the insertion direction (−Y direction). When the container lid member 62 is attached to the opening housing member 60, it is arranged on the outer wall surface of the opening housing member 60 and constitutes a part of the third wall portion 23 and the fourth wall portion 24 of the container main body 11. (Figs. 5 and 7). The peripheral wall portion 67 functions as a positioning portion for positioning the container lid member 62 with respect to the opening housing member 60 (details will be described later).

The second peripheral wall portion 68 is provided at the end portion of the main body wall portion 66 on the + Y direction side, and constitutes an edge portion protruding in the + X direction in an eaves shape (FIG. 2). The lower end of the peripheral wall portion 68 on the −Z direction side is connected to the end portion of the first peripheral wall portion 67 provided on the lower end side of the main body wall portion 66 on the + Y direction side. The peripheral wall portion 68 is arranged on the outer wall surface of the opening housing member 60 when the container lid member 62 is attached to the opening housing member 60, and constitutes a part of the second wall portion 22 of the container main body 11. do. The upper end portion 68e of the peripheral wall portion 68 on the + Z direction side is located on the −Z direction side with respect to the upper end portion of the second wall portion 22. The reason for this will be described later.

The main body wall portion 66 of the container lid member 62 has an outer peripheral end portion 66e which is an end portion extending linearly along the Y direction on the + Y direction side of the peripheral wall portion 67 provided at the upper end of the main body wall portion 66. Has (Fig. 10). The outer peripheral end portion 66e is arranged along the liquid receiving portion 80 (described later) provided around the liquid inlet 35 when the container lid member 62 is attached to the opening housing member 60 (FIG. 2). Further, the outer peripheral end portion 66e is arranged along the lid member 85 in a state where the liquid inlet 35 is closed (FIG. 3). The peripheral wall portion 67 provided at the lower end of the container lid member 62 has an end portion 67e arranged along the handle portion 40 on the + Y direction side (FIG. 7). The functions of the outer peripheral end portion 66e and the end portion 67e will be described later.

As described above, in the liquid storage container 10A, the container lid member 62 is attached to the opening housing member 60 so as to close the opening of the storage chamber recess 61a (FIG. 10). Further, the main body wall portion 66 of the container lid member 62 intersects the upper wall surface 23s and constitutes a side wall surface which is an outer wall surface of the container main body 11 along the insertion direction, that is, an outer wall surface of the fifth wall portion 25 ( 3 and 4). In the liquid container 10A, the film member 63 is protected by the container lid member 62 (FIG. 10).

Further, in the liquid storage container 10A, the peripheral wall portions 67 and 68 of the container lid member 62 are the wall portion constituting the third wall portion 23 of the opening housing member 60, the wall portion constituting the fourth wall portion 24, and the first wall portion. 2 It is arranged so as to be overlapped on the wall portion constituting the wall portion 22 (FIGS. 5, 7, and 8). As a result, in the liquid storage container 10A, it is suppressed that a large gap is generated between the opening housing member 60 exposed to the outside and the container lid member 62.

A2-3. Liquid flow path connecting the containment chamber and the liquid outlet:
A2-3-1. Flow path configuration:
With reference to FIGS. 13 to 16, the configuration of the liquid flow path 70 connecting the storage chamber 31 and the liquid outlet 33 in the liquid storage container 10A will be described. FIG. 13 is a schematic cross-sectional view of the opening housing member 60 in the 13-13 cutting shown in FIG. 11, showing the bottom surface 31b of the accommodation chamber 31 as viewed in the −Z direction. In FIG. 13, the positions of the liquid outlet 33 and the liquid inlet 35 when the liquid storage container 10A is viewed in the −Z direction are shown by broken lines. FIG. 14 is a schematic bottom view of the portion of the opening housing member 60 included in the region A shown in FIG. 13 when viewed in the + Z direction, and is a filter chamber 71 provided in the fourth wall portion 24. Is shown. FIG. 15 is a schematic cross-sectional view schematically showing the cross-sectional structure of the filter chamber 71 on the cut surface along the Y direction. FIG. 16 is a schematic perspective view of the end portion of the opening housing member 60 provided with the filter chamber 71 on the first wall portion 21 side when viewed from below.

FIG. 16 shows an arrow FL showing the flow of liquid from the containment chamber 31 to the liquid outlet 33. The container body 11 of the liquid storage container 10A is provided with a liquid flow path 70 connecting the storage chamber 31 and the liquid outlet 33 (FIG. 16). The flow path 70 includes a filter chamber 71 and an outlet flow path 78. The filter chamber 71 is a space for accommodating a filter 72 that captures foreign substances and air bubbles contained in the liquid and removes them from the liquid (FIG. 14). That is, in the liquid storage container 10A, the filter 72 is provided between the storage chamber 31 and the liquid outlet 33. In the present specification, not only the substances not contained in the liquid component but also the fine particles dispersed as the liquid component are aggregated in the foreign matter in the liquid captured and removed by the filter 72, and the size is larger than the specified size. Particles that have become are also included.

The filter chamber 71 is provided below the containment chamber 31 (FIGS. 14 and 16). The filter chamber 71 is provided inside the fourth wall portion 24 of the container main body 11 (FIGS. 7 and 13). In FIGS. 7 and 13, since the filter chamber 71 is hidden and invisible, its position is shown by a broken line. When the liquid storage container 10A is viewed in the Z direction, the filter chamber 71 is aligned with the liquid inlet 35 along the insertion direction (FIG. 13). The filter chamber 71 is formed as a recessed space surrounded by ribs 73 protruding in the −Z direction on the surface of the wall portion of the opening housing member 60 constituting the fourth wall portion 24 of the container body 11 on the −Z direction side. (Figs. 14 and 16).

The opening of the recessed space constituting the filter chamber 71 is sealed by welding the film member 74 to the rib 73 after the filter 72 is arranged in the recessed space (FIGS. 10 and 15). In FIG. 14, the arrangement region of the film member 74 is shown by a alternate long and short dash line. When the container lid member 62 is attached to the opening housing member 60, the filter chamber wall portion 67f of the container lid member 62 is arranged so as to cover the film member 74 (FIGS. 4 and 7). The filter chamber wall portion 67f is a part of the peripheral wall portion 67 provided at the end portion of the container lid member 62 on the −Z direction side. The filter chamber wall portion 67f is arranged so as to abut on the end portion of the second rail portion 42 on the −Y direction side (FIG. 7).

The filter 72 is composed of a film-like member having pores, allows the liquid to pass through the pores in the thickness direction, and removes foreign substances and bubbles contained in the liquid having a size larger than the diameter of the pores (FIG. 15). ). The filter 72 is joined to and supported by a filter support wall 75, which is a convex portion protruding in the −Z direction from the upper surface of the filter chamber 71 so that the thickness direction coincides with the Z direction. The region surrounded by the filter support wall 75 is a region through which the liquid passes in the filter 72, and the outer peripheral shape of the region has a shape along the outer peripheral shape of the filter 72.

In the liquid storage container 10A, the outer peripheral shape of the filter 72, that is, the shape when the filter 72 is viewed along the thickness direction has a substantially quadrangular shape (FIG. 14). In the first embodiment, the outer peripheral shape of the filter 72 is a substantially parallelogram. The filter 72 has a first side s1 located on the insertion direction side and a second side s2 located on the side opposite to the insertion direction with respect to the first side s1. The filter 72 has a first pair of corners c1 and c2 at both ends of the first side s1 and a second pair of corners c3 and c4 at both ends of the second side s2. There is. One corner c1 of the first pair of corners c1 and c2 is located at a position protruding toward the insertion direction with respect to the other corner c2. One corner c3 of the second pair of corners c3 and c4 is located at a position protruding from the other corner c4 on the side opposite to the insertion direction.

The filter chamber 71 is partitioned by the filter 72 into an upstream space 71u located on the upstream side of the filter 72 and a downstream space 71d located on the downstream side of the filter 72 (FIG. 15). The upstream space 71u is connected to the accommodation chamber 31 via the first communication port 76a and the second communication port 76b. The downstream space 71d is a space surrounded by the filter support wall 75 and is connected to the outlet flow path 78 (FIGS. 15 and 16). The upstream space 71u is located below the filter 72 and the downstream space 71d.

The first communication port 76a and the second communication port 76b communicating with the upstream space 71u are open at the bottom surface 31b of the accommodation chamber 31 (FIGS. 13, 14, and 16). The first communication port 76a is provided at a position closer to the liquid inlet 35 than the filter chamber 71 in the insertion direction (FIG. 13). The first communication port 76a is provided at a position closer to the fifth wall portion 25 in which the film member 63 (FIG. 12) is arranged than the sixth wall portion 26 in the X direction (FIG. 13). The second communication port 76b is provided on the side opposite to the first communication port 76a with the filter 72 interposed therebetween in the insertion direction, and is provided at a position closer to the liquid outlet 33 than the filter chamber 71. The second communication port 76b is provided at a position closer to the sixth wall portion 26 than the fifth wall portion 25 in the X direction. The first communication port 76a is provided at a position closer to the third corner portion c3 than the fourth corner portion c4 of the filter 72 (FIG. 14). The second communication port 76b is provided at a position closer to the first corner portion c1 than the second corner portion c2 of the filter 72.

As described above, the first communication port 76a is provided at a position closer to the fifth wall portion 25 than the sixth wall portion 26 in the X direction (FIG. 13). Therefore, the liquid that has passed between the reinforcing wall portion 64 and the film member 63 easily flows into the filter chamber 71 through the first communication port 76a. Further, the first communication port 76a and the second communication port 76b are open on the surface of the bottom surface 31b that is slightly higher than the step 31s (FIG. 13). As a result, foreign matter settling on the lower surface of the bottom surface 31b is prevented from overcoming the step 31s and flowing into the first communication port 76a and the second communication port 76b.

The rib 73 surrounding the filter chamber 71 is formed so as to surround the filter 72, the first communication port 76a, and the second communication port 76b along their outer peripheral contour lines (FIG. 14). On the outside of the filter chamber 71, reinforcing ribs 79 for increasing the strength around the filter chamber 71 are formed in a grid pattern. As a result, deformation of the wall portion around the filter chamber 71 is suppressed, and peeling of the filter 72 and the film member 74 is suppressed.

A2-3-2. Liquid flow in the flow path:
The flow of the liquid in the flow path 70 will be described with reference to FIGS. 15 and 16. The liquid in the storage chamber 31 flows into the upstream space 71u of the filter chamber 71 through the first communication port 76a and the second communication port 76b (arrow FL in FIG. 15). The liquid flows inside the filter 72 in a direction opposite to the direction of gravity and flows into the downstream space 71d. At this time, foreign substances and bubbles mixed in the liquid remain in the upstream space 71u. The liquid that has flowed into the downstream space 71d flows into the outlet flow path 78 connected to the downstream space 71d, and flows through the outlet flow path 78 to the liquid outlet 33 (arrow FL in FIG. 16).

See FIG. 13. In the liquid storage container 10A, the filter 72 is provided at a position closer to the liquid outlet 33 than the liquid inlet 35 in the insertion direction. As a result, the foreign matter mixed in the liquid injected through the liquid inlet 35 can be settled before reaching the filter 72. Therefore, the foreign matter is suppressed from reaching the filter 72, and the clogging of the filter 72 due to the foreign matter is suppressed. Further, even if air bubbles are mixed in the liquid of the storage chamber 31 by injecting the liquid from the liquid inlet 35, the amount of air bubbles reaching the filter 72 can be reduced. Since the distance between the liquid outlet 33 and the filter 72 is short, it is suppressed that the pressure loss between the filter 72 and the liquid outlet 33 becomes large. Therefore, it is possible to reduce the suction force for sucking the liquid generated in the suction pump 524 (FIGS. 26 to 28) of the liquid consumption device 500 to the liquid outlet 33.

In particular, in the first embodiment, the liquid inlet 35 is provided at a position closer to the second wall portion 22 than the first wall portion 21, and the filter 72 is located closer to the first wall portion 21 than the second wall portion 22. It is provided so that the distance between the liquid inlet 35 and the filter 72 becomes larger. Therefore, it is more difficult for foreign matter in the liquid to reach the filter 72. Further, the foreign matter in the liquid can be captured by the plurality of reinforcing wall portions 64 provided between the liquid inlet 35 and the filter 72, and the foreign matter reaching the filter 72 can be reduced. Therefore, clogging of the filter 72 is suppressed, and the life of the filter 72 can be extended.

FIG. 13 shows the central axis CX of the liquid inlet 35 and the axis PX intersecting the central axis CX and parallel to the insertion direction. In the liquid storage container 10A, the first communication port 76a communicating with the filter chamber 71 is provided at a position deviated from the axis PX. In this configuration, the distance between the first communication port 76a and the center position of the liquid inlet 35 is longer than when the first communication port 76a is on the axis PX. Therefore, as the distance increases, it is further suppressed that the foreign matter that has entered from the liquid inlet 35 reaches the first communication port 76a. Therefore, clogging of the filter 72 is further suppressed.

In the liquid storage container 10A, the filter chamber 71 is provided below the storage chamber 31 (FIG. 15). Therefore, the liquid can be guided from the accommodation chamber 31 to the filter chamber 71 by gravity, and the inflow of the liquid into the filter chamber 71 is facilitated. Therefore, the flow of the liquid from the liquid storage container 10A to the liquid consumption device 500 can be made smoother, and the liquid supply performance to the liquid consumption device 500 by the liquid storage container 10A is enhanced.

In the liquid storage container 10A, the upstream space 71u of the filter chamber 71 is located below the filter 72 and the downstream space 71d, and the liquid in the filter chamber 71 is the filter 72 in the direction opposite to the direction of gravity. Pass through. Therefore, the foreign matter removed from the liquid by the filter 72 can be settled below the filter 72 by gravity. Therefore, the occurrence of clogging of the filter 72 is further suppressed.

In the liquid storage container 10A, the storage chamber 31 and the filter chamber 71 are located at the first communication port 76a provided near the liquid inlet 35 and the -Y direction side from the first communication port 76a, and the liquid inlet is located. It communicates with a second communication port 76b provided at a position far from 35. As a result, when the liquid is injected into the empty storage chamber 31, the liquid flows from the first communication port 76a into the upstream space 71u of the filter chamber 71, and the air in the upstream space 71u is introduced from the second communication port 76b. It can be escaped to the containment chamber 31 (arrow AF in FIG. 15). Therefore, the retention of air in the upstream space 71u of the filter chamber 71 is suppressed, and the retention of such air hinders the replenishment of the liquid in the filter chamber 71, and the liquid supply performance to the liquid consumption device 500. Is suppressed from decreasing.

In the liquid storage container 10A, the first corner portion c1 of the filter 72 is located at a position protruding toward the insertion direction side from the second corner portion c2, and the third corner portion c3 is the fourth corner portion. It is located at a position protruding from c4 on the side opposite to the insertion direction (FIG. 14). That is, the first corner portion c1 is located on the −Y direction side of the second corner portion c2, and the third corner portion c3 is located on the + Y direction side of the fourth corner portion c4. ing. The outer peripheral shape of the liquid passage region PA in the filter 72 surrounded by the filter support wall 75 is also shaped to follow the outer peripheral shape of the filter 72. As a result, when the outer peripheral shape of the filter 72 is a rectangular shape having corners at the positions of the second corner portion c2 and the fourth corner portion c4, and the outer peripheral shape of the liquid passage region PA is made to match the shape. The area of the liquid passage region PA in the filter 72 is increased. Therefore, the effect of removing foreign matter by the filter 72 is enhanced by that amount. Further, the outer peripheral shapes of the filter 72 do not match when the front and back sides of the filter 72 are inverted. Therefore, it is easy to distinguish the upper surface and the lower surface of the filter 72. Therefore, the process of assembling the filter 72 to the container body 11 of the liquid container 10A is simplified.

In the liquid storage container 10A, the filter chamber 71 is exposed to the outside by removing the container lid member 62 from the opening housing member 60 (FIGS. 7 and 16). Therefore, the filter 72 can be easily replaced and maintained.

A2-4. Exit storage recess and multiple recesses on the first wall:
A2-4-1. Exit storage recess:
FIG. 17 is a schematic cross-sectional view of the first wall portion 21 of the liquid storage container 10A in the 17-17 cutting shown in FIG. In the first wall portion 21, the liquid outlet 33 is open at the tip of the pipe portion 33p protruding in the −Y direction at a position substantially at the center of the outlet storage recess 34. The liquid outlet 33 is surrounded by the inner wall surface of the outlet storage recess 34. As a result, the liquid spilled from the liquid outlet 33 is received by the outlet storage recess 34, so that the liquid containing the liquid spilled from the liquid outlet 33 is not contaminated with the liquid storage container 10A.

In the outlet storage recess 34, the depth below the liquid outlet 33 is larger in the + Y direction than above the liquid outlet 33. As a result, the amount of the liquid leaking downward from the liquid outlet 33 can be stored in the outlet storage recess 34 is increased. Therefore, it is suppressed that the liquid leaked from the liquid outlet 33 is transmitted to the region below the outlet storage recess 34, and the contamination of the liquid storage container 10A by such liquid is further suppressed.

A2-4-2. Recessed part of the first wall:
When the liquid storage container 10A is mounted on the liquid consumption device 500, the rod 525 (1) provided in the container insertion port 521 of the liquid consumption device 500 is provided in the second recess 55b formed in the first wall portion 21. (Shown by broken line) is inserted. The rod 525 is composed of a shaft-shaped member extending in the + Y direction, and has a shape corresponding to the opening shape and opening depth of the second recess 55b.

The second recess 55b has a bottom portion 56 on the + Y direction side, and the tip of each rod 525 comes into contact with the bottom portion 56 in the mounted state of the liquid storage container 10A. This prevents the liquid storage container 10A from being pushed too far toward the −Y direction from the specified mounting position when the liquid storage container 10A is inserted into the liquid consumption device 500.

In the liquid storage container 10A, the liquid outlet 33 is provided above the second recess 55b that functions as a positioning portion of the liquid storage container 10A. Therefore, it is possible to prevent a poor connection between the liquid introduction port (not shown) of the liquid consuming device 500 connected to the liquid outlet 33 and the liquid outlet 33 due to the misalignment of the liquid outlet 33.

In the liquid storage container 10A, the second recess 55b has a substantially circular shape in which both ends in the Z direction are notched flat (FIG. 9). As a result, the posture of the liquid storage container 10A is suppressed from being tilted in the Z direction with respect to the central axis of the rod 525 inserted into the second recess 55b.

In the liquid storage container 10A, a first recess 55a is provided between the electrical connection portion 50 and the liquid outlet 33. Therefore, even if the liquid storage container 10A is in a posture in which the third wall portion 23 is located below the fourth wall portion 24, the liquid spilled from the liquid outlet 33 is transmitted to the electrical connection portion 50. This is suppressed by the first recess 55a. Therefore, deterioration of the electrical connection portion 50 due to the liquid adhering to the electrical connection portion 50 and deterioration of the electrical connectivity of the electrical connection portion 50 with respect to the liquid consuming device 500 are suppressed.

Further, in the liquid storage container 10A, a second recess 55b and a third recess 55c are provided below the liquid outlet 33. Therefore, even if the liquid storage container 10A is in a posture in which the fourth wall portion 24 is located below the third wall portion 23, the liquid spilled from the liquid outlet 33 is transmitted to the fourth wall portion 24. This is suppressed by those two recesses 55b and 55c. Therefore, the expansion of the region contaminated by the liquid spilled from the liquid outlet 33 is suppressed.

In the liquid storage container 10A, the center positions of the recesses 55, the liquid outlet 33, and the electrical connection portion 50 in the X direction are arranged in a row on the axis CY parallel to the Z direction (FIG. 9). ). Each of these center positions may be arranged at a position slightly offset from the axis CY. The deviation of the center position of each recess 55 with respect to the center position of the liquid outlet 33 and the electrical connection portion 50 in the X direction may be allowed as long as the liquid spilled from the liquid outlet 33 can be smoothly collected. The center position of each recess 55 may be displaced so as to overlap at least a part of each recess 55 with respect to the liquid outlet 33 and the electrical connection portion 50 when the liquid storage container 10A is viewed in the Y direction.

A2-5. Configuration of the second end side of the liquid storage container:
With reference to FIGS. 18 to 23, details of the configuration of the liquid storage container 10A on the second end 13 side will be described. FIG. 18 is a schematic perspective view showing a configuration on the second end 13 side of the liquid storage container 10A in a state where the lid member 85 is opened. FIG. 19 is a schematic side view of the upper end portion of the second end portion 13 of the liquid storage container 10A with the lid member 85 opened when viewed in the + X direction. FIG. 20 is a schematic plan view of the second end portion 13 of the liquid storage container 10A with the lid member 85 opened when viewed in the −Z direction. FIG. 21 is a schematic cross-sectional view of the second end portion 13 of the liquid storage container 10A in the 21-21 cutting shown in FIG. FIG. 21 shows a state in which the lid member 85 is closed. FIG. 22 is a schematic perspective view illustrating a state in which the lid member 85 is moved in the closing direction. FIG. 23 is a schematic perspective view showing a state of liquid injection work into the liquid storage container 10A mounted on the liquid consumption device 500.

As described above, the liquid inlet 35 is provided on the second end 13 side of the liquid storage container 10A, and further, a visual recognition portion 38 having a scale 39 and a handle portion 40 are provided below the liquid inlet 35. ing. Hereinafter, the scale 39 of the visual recognition unit 38, the handle portion 40, the configuration around the liquid inlet 35, and the liquid injection work to the liquid inlet 35 will be described in order.

A2-5-1. Visibility scale:
As described above, the visual recognition portion 38 provided on the second wall portion 22 is provided with a scale 39 (FIG. 18). In the liquid storage container 10A, at least a part of the scale 39 is provided on the outer outer wall surface 22o of the storage chamber 31 in the visual recognition unit 38 and the inner inner wall surface 22i of the inner side of the storage chamber 31 in the visual recognition unit 38. Hereinafter, the scale 39 provided on the outer wall surface 22o is referred to as an "outer scale 39o". Further, the scale 39 provided on the inner wall surface 22i is referred to as an "inner scale 39i".

The outer scale 39o is configured as a convex portion of the outer wall surface 22o. The convex portion constituting the outer scale 39o has a linear shape extending in the X direction. The outer scale 39o is formed as a lower limit scale 39L indicating a lower limit of the amount of liquid contained in the storage chamber 31. As the outer scale 39o, in addition to the lower limit scale 39L, a scale indicating another liquid amount may be added.

The inner scale 39i is configured as a plurality of ribs in the accommodation chamber 31. The ribs constituting the inner scale 39i are arranged in the accommodation chamber 31 in the vertical direction at predetermined intervals. Further, the ribs constituting the inner scale 39i are provided at the corners of the second wall portion 22 and the sixth wall portion 26 so as to connect the second wall portion 22 and the sixth wall portion 26. It is configured as a substantially triangular wall portion extending along the X direction and the Y direction. The plurality of ribs constituting the inner scale 39i also function as reinforcing ribs for increasing the strength of the opening housing member 60.

The inner scale 39i includes a lower limit scale 39L provided at the lowest position in the accommodation chamber 31. The inner scale 39i constituting the lower limit scale 39L is provided at a position facing the outer scale 39o constituting the lower limit scale 39L in the Y direction.

According to the liquid storage container 10A, as the scale 39, an inner scale 39i on the inner wall surface 22i side and an outer scale 39o on the outer wall surface 22o side are provided. Therefore, even if the visibility of a part of the inner scale 39i is reduced for some reason, the user can confirm the amount of liquid in the storage chamber 31 by the outer scale 39o. Similarly, for the outer scale 39o, even if the visibility of the outer scale 39o deteriorates due to wear of the outer scale 39o or adhesion of liquid to the outer scale 39o, the amount of liquid in the storage chamber 31 is confirmed by the inner scale 39i. can. In this way, even if a problem occurs in either the inner scale 39i or the outer scale 39o, it is possible to prevent the user from being unable to confirm the liquid amount.

According to the liquid storage container 10A, the outer scale 39o is formed by the convex portion of the outer wall surface 22o of the second wall portion 22. Therefore, for example, even if the liquid spilled from the liquid inlet 35 adheres to the outer scale 39o and the visibility of the outer scale 39o is reduced, the user can confirm the position of the outer scale 39o by tactile sensation.

According to the liquid storage container 10A, the inner scale 39i is configured as a rib provided on the inner wall surface 22i. Therefore, when the area around the rib is immersed in the liquid contained in the storage chamber 31, the difference in brightness and color between the formed portion of the inner scale 39i and the area around the rib becomes large, so that the inner scale 39i has a difference in brightness and color. Visibility is improved.

According to the liquid storage container 10A, the lower limit scale 39L is provided on both the outer wall surface 22o and the inner wall surface 22i. As a result, the deterioration of the visibility of the scale 39 indicating the lower limit position is suppressed, so that the liquid in the liquid storage container 10A is insufficient and the supply of the liquid to the liquid consuming device 500 is suppressed from being delayed. The liquid.

A2-5-2. Handle:
As described above, in the liquid storage container 10A, the handle portion 40 is provided in the first portion 15 (FIGS. 4 and 21). In the liquid storage container 10A, the handle portion 40 enhances the user's operability when the liquid storage container 10A is attached to and detached from the liquid consumption device 500. The handle portion 40 is provided on the bottom wall surface 24s of the fourth wall portion 24 opposite to the upper wall surface 23s of the third wall portion 23 in which the liquid inlet 35 is open. As a result, the liquid spilled from the liquid inlet 35 is suppressed from reaching the handle portion 40, and the liquid is suppressed from adhering to the handle portion 40. Therefore, it is possible to prevent the liquid from adhering to the user's body through the handle portion 40.

As described above, in the liquid storage container 10A, a convex portion of the outer wall surface 22o constituting the outer scale 39o, which is the lower limit scale 39L of the visual recognition portion 38, is provided above the handle portion 40. The convex portion constituting the outer scale 39o can catch the liquid spilled from the liquid inlet 35 and transmitted to the outer wall surface 22o of the second wall portion 22. Therefore, it is further suppressed that such a liquid reaches the handle portion 40 (FIG. 4).

In the liquid storage container 10A, since the handle portion 40 is provided on the bottom wall surface 24s of the fourth wall portion 24, the formation region of the handle portion 40 and the formation region of the visual recognition portion 38 provided on the second wall portion 22. Interference with and is suppressed. Therefore, even when the handle portion 40 is provided, the formation region of the visual recognition portion 38 can be made large. Further, it is possible to prevent the user from obstructing the visual recognition of the visual recognition portion 38 by the handle portion 40.

In the liquid consuming device 500, a plurality of liquid storage containers 10A are mounted in parallel in a state of being arranged in the X direction (FIG. 1). That is, the plurality of liquid storage containers 10A are arranged in the liquid consuming device 500 in a direction intersecting the insertion direction and the direction from the upper wall surface 23s to the bottom wall surface 24s (FIG. 6) of the liquid storage container 10A (FIG. 6). Figure 1). As described above, if the handle portion 40 is provided on the bottom wall surface 24s, the user can access the handle portion 40 even if the arrangement interval of the liquid storage container 10A in the liquid consumption device 500 in the X direction is reduced. The decrease is suppressed. Therefore, the arrangement area of the liquid storage container 10A in the liquid consumption device 500 can be configured more compactly.

Since the liquid storage container 10A is provided with the visual recognition unit 38 as described above, in the liquid injection work into the storage chamber 31 through the liquid inlet 35, the liquid is injected from the liquid inlet 35 due to the excessive amount of the liquid injected. Is suppressed from overflowing. Therefore, it is possible to prevent the handle 40 from being contaminated by the overflowing liquid and the liquid from adhering to the user's body through the handle 40. Further, in the liquid storage container 10A, the liquid is supplied to the handle portion 40 due to various configurations around the liquid inlet 35 that can suppress the leakage of the liquid from the liquid inlet 35 and the diffusion of the liquid leaked from the liquid inlet 35. Adhesion is suppressed. As described above, in the liquid storage container 10A, the handle portion 40 is provided and the visual recognition portion 38 is configured to be easy for the user to see, so that the convenience for the user is enhanced.

A2-5-3. Configuration around the liquid inlet:
(1) Liquid receiving part:
The liquid storage container 10A is provided with a liquid receiving portion 80 for receiving the liquid spilled from the liquid inlet 35 on the upper wall surface 23s of the third wall portion 23 which is the upper surface wall portion (FIGS. 18 and 20). The liquid receiving portion 80 is configured as a recess provided around the liquid inlet 35. The liquid receiving portion 80 is provided at the lower end of the inlet peripheral wall portion 36 (FIG. 18). The liquid receiving portion 80 is a region between the liquid inlet 35 and the second wall portion 22, a region between the liquid inlet 35 and the fifth wall portion 25, and a region between the liquid inlet 35 and the sixth wall portion 26. It is provided in the area of (FIG. 20).

According to the liquid storage container 10A, the liquid spilled from the liquid inlet 35 is received by the liquid receiving unit 80. Therefore, it is possible to prevent the outer wall surface of the liquid storage container 10A from being soiled by the liquid spilled from the liquid inlet 35. Therefore, it is possible to prevent the liquid spilled from the liquid inlet 35 from adhering to the user's body. Further, it is suppressed that the liquid spilled from the liquid inlet 35 is transmitted to the visible portion 38 of the second wall portion 22 and the visibility of the scale 39 is deteriorated.

The concave portion constituting the liquid receiving portion 80 is provided with a liquid receiving portion partition wall 81 for partitioning a plurality of spaces in the concave portion (FIG. 20). The liquid receiving portion partition wall 81 is composed of a wall portion extending upward in the liquid receiving portion 80. In the liquid storage container 10A, the internal space of the liquid receiving portion 80 is divided into a plurality of parts by the liquid receiving portion partition wall 81, so that the flow of the liquid in the liquid receiving portion 80 is suppressed and the liquid is suppressed from the liquid receiving portion 80. Spilling is suppressed. Therefore, it is possible to prevent the outer wall surface of the liquid storage container 10A from being soiled by the liquid spilled from the liquid inlet 35. It is further suppressed that the liquid spilled from the liquid inlet 35 adheres to the user's body. The decrease in visibility of the scale 39 due to the liquid spilled from the liquid inlet 35 is further suppressed.

(2) Convex wall part:
In the liquid storage container 10A, on the upper wall surface 23s of the third wall portion 23, a convex wall portion protruding upward between the liquid inlet 35 and the second wall portion 22, that is, on the + Y direction side of the liquid inlet 35. 82 is formed (FIGS. 18 and 19). The convex wall portion 82 functions as a preventive wall for preventing droplets from scattering in the + Y direction from the liquid inlet 35 when the user injects the liquid into the liquid inlet 35 or the like. Therefore, it is possible to prevent the liquid container 10A from being contaminated by the liquid and the liquid from adhering to the user's body during the liquid injection operation. Further, it is possible to prevent the liquid from adhering to the outer wall surface 22o of the second wall portion 22 and deteriorating the visibility of the scale 39. A notch-shaped recess 82r recessed in the −Z direction is provided at the upper end of the convex wall portion 82 (FIG. 18). The function of the recess 82r will be described later.

(3) Closure member:
The liquid storage container 10A is provided with a lid member 85 that rotates with respect to the upper wall surface 23s of the third wall portion 23, which is the upper surface wall portion, to open and close the liquid inlet 35 (FIGS. 18 to 23). .. The lid member 85 is connected to the third wall portion 23 via the connecting portion 86 (FIG. 18). The connecting portion 86 is configured by a hinge mechanism, and the lid member 85 rotates about the rotation shaft RX of the connecting portion 86. The connecting portion 86 is provided on the −Y direction side of the liquid inlet 35, and the rotation shaft RX is arranged along the X direction. The lid member 85 rotates on the upper wall surface 23s along the Y direction.

The lid member 85 has a sealing surface 87s facing the liquid inlet 35 side and an outer surface 87o on the opposite side thereof (FIG. 19). The sealing surface 87s is in a state of covering the liquid inlet 35 and closing the liquid inlet 35 by rotating the lid member 85 in the + Y direction (FIG. 21). The sealing surface 87s is in a state of opening the liquid inlet 35 away from the liquid inlet 35 by rotating the lid member 85 in the −Y direction (FIGS. 18 and 19).

According to the liquid storage container 10A, since the liquid inlet 35 can be kept closed by the lid member 85 when the liquid is not injected, it is possible to prevent the liquid from spilling from the liquid inlet 35. Therefore, the contamination of the liquid storage container 10A due to the liquid spilled from the liquid inlet 35 is suppressed. Further, it is possible to prevent the liquid spilled from the liquid inlet 35 from adhering to the visibility portion 38 of the second wall portion 22 and reducing the visibility of the scale 39. According to the liquid storage container 10A, by closing the liquid inlet 35 with the lid member 85, it is possible to suppress the entry of foreign matter from the liquid inlet 35 into the storage chamber 31. When closing the lid member 85, the user can position the lid member 85 with reference to the position of the outer peripheral end portion 66e of the container lid member 62 arranged along the attachment position of the lid member 85. (Fig. 22). Therefore, the operability of the lid member 85 by the user is enhanced.

A sealing member 88 is arranged on the sealing surface 87s (FIGS. 18 and 21). When the sealing surface 87s is in a state of blocking the liquid inlet 35, the sealing member 88 abuts on the upper end surface 36s of the inlet peripheral wall portion 36 to seal the liquid inlet 35 (FIG. 21). The seal member 88 is made of, for example, a resin member such as an elastomer or rubber. In the liquid storage container 10A, the sealing member 88 enhances the closing property of the liquid inlet 35 by the lid member 85, so that the leakage of the liquid from the liquid inlet 35 is further suppressed. Therefore, the fouling of the liquid storage container 10A due to the liquid spilled from the liquid inlet 35 and the deterioration of the visibility of the scale 39 are further suppressed.

In the liquid storage container 10A, the third wall portion 23 is provided with a stopper portion 89 that regulates the rotation of the lid member 85 in the −Y direction (FIGS. 18, 19, and 21). The stopper portion 89 supports the lid member 85 in an inclined state with respect to the upper wall surface 23s of the third wall portion 23 so that the liquid inlet 35 is maintained in an open state (FIG. 19). The stopper portion 89 is provided as a convex structure of the upper wall surface 23s provided on the −Y direction side of the connecting portion 86.

The stopper portion 89 has an inclined surface 89s having an inclination angle with respect to the upper wall surface 23s (FIGS. 19 and 21). The inclined surface 89s of the stopper portion 89 rotates the lid member 85 in the direction of opening the liquid inlet 35, and when the angle θ with respect to the upper wall surface 23s of the lid member 85 reaches a predetermined angle, the lid member 85 It abuts on the lower end on the outer surface 87o side (FIG. 19). The lid member 85 receives a reaction force against its own weight from the inclined surface 89s of the stopper portion 89, and is supported in a state of being inclined with respect to the upper wall surface 23s.

According to the liquid storage container 10A, when the user injects the liquid into the liquid inlet 35, the lid member 85 is prevented from interfering with the injecting operation. Therefore, it is possible to prevent the user from accidentally spilling the liquid during the liquid injection operation, and it is possible to prevent the liquid storage container 10A from being contaminated by the spilled liquid and the visibility of the scale 39 from being lowered. Further, when the user tries to rotate the lid member 85 to close the liquid inlet 35, the lid member 85 is in an inclined state, so that the user can easily put his finger on the outer surface 87o of the lid member 85. It is easy to lift the lid member 85. Therefore, the operability of the lid member 85 is enhanced.

In the first embodiment, the angle θ on the + Y direction side between the lid member 85 and the upper wall surface 23s when the lid member 85 is supported by the stopper portion 89 is 100 ° or more. This further prevents the lid member 85 from interfering with the user's operation of injecting the liquid into the liquid inlet 35. Further, when the liquid is injected, the droplets scattered from the liquid inlet 35 in the −Y direction can be received by the lid member 85. Therefore, the contamination of the liquid storage container 10A due to the droplets scattered from the liquid inlet 35 is suppressed.

The outer surface 87o of the lid member 85 is provided with an outer surface convex portion 90 protruding from the outer surface 87o at the end portion on the distal end side opposite to the proximal end side connected by the connecting portion 86 (FIG. 18, Fig. 19). The user can put his finger on the outer surface convex portion 90 when opening and closing the lid member 85. Therefore, the operation of the lid member 85 by the user is facilitated, and the operability of the lid member 85 is enhanced.

The outer surface convex portion 90 internally includes a sealing surface side concave portion 91, which is a concave portion provided on the sealing surface 87s (FIGS. 18 and 21). The concave portion 91 on the sealing surface side receives and stores the convex wall portion 82 inside when the lid member 85 closes the liquid inlet 35 (FIG. 21). The convex wall portion 82 can be used, for example, as a positioning reference when closing the lid member 85. When the liquid inlet 35 is closed by the lid member 85, if the user rotates the outer surface convex portion 90 toward the convex wall portion 82 with the convex wall portion 82 as a mark, the user can open and close the lid member 85. Be facilitated.

A locking portion 93 extending in a tongue-like shape in a direction intersecting the sealing surface 87s is provided at the tip of the lid member 85 (FIGS. 18 and 21). The locking portion 93 is formed with a claw portion 93c related to the locked portion 94, which is a recess opened in the + Y direction at the upper end of the second wall portion 22 when the lid member 85 closes the liquid inlet 35. Has been done. By locking the locking portion 93 of the lid member 85 to the locked portion 94, the sealing property of the liquid inlet 35 by the lid member 85 is enhanced. Further, when the lid member 85 is in a state where the liquid inlet 35 is closed, the locking portion 93 protrudes from the second wall portion 22 in the + Y direction (FIG. 6). This makes it easier for the user to put his finger on the lower surface of the locking portion 93 when opening the lid member 85. Further, the locking portion 93 extends diagonally downward from the upper end of the second wall portion 22. As a result, when the user puts his finger on the lower surface of the locking portion 93 and tries to rotate the lid member 85 in the + Z direction, the claw portion 93c is separated from the locked portion 94 by the locking portion 93. The force in the direction of doing works. Therefore, it is easy to remove the locking portion 93 from the locked portion 94.

When the lid member 85 is in a state of blocking the liquid inlet 35, the locking portion 93 of the lid member 85 is arranged on the second wall portion 22 (FIG. 8). The end portion of the second wall portion 22 on the −X direction side is formed by the peripheral wall portion 68 of the container lid member 62. The upper end portion 68e of the peripheral wall portion 68 is a locking portion so that a gap of a predetermined interval is formed between the upper end portion 68e and the tip of the locking portion 93 when arranged on the second wall portion 22. It is located below the placement position of the tip of 93. As a result, the outer wall surface 22o of the second wall portion 22 is formed with a recess along the outer peripheral shape of the tip of the locking portion 93. The user recognizes that when closing the lid member 85, the tip of the locking portion 93 should be moved to the position of the upper end portion 68e of the peripheral wall portion 68. As described above, the upper end portion 68e of the peripheral wall portion 68 of the container lid member 62 functions as a positioning portion of the locking portion 93 for reliably closing the liquid inlet 35 by the lid member 85.

A protrusion 95 protruding from the sealing surface 87s is provided at the end of the sealing surface 87s of the lid member 85 on the second wall 22 side (FIG. 18). The protrusion 95 is provided at the end on the + X direction side and the end on the −X direction side. The protrusion 95 is provided between the connecting portion 86 and the sealing member 88. The protrusion 95 is provided with a groove 96. The groove portion 96 extends along the protrusion direction in which the protrusion portion 95 protrudes, and has a bottom portion 96t on the rotation shaft RX side of the lid member 85 (FIGS. 18 and 20).

The groove 96 of the protrusion 95 takes a state in which the liquid receiving portion 80 is located ahead of the protrusion 95 in the protruding direction while the lid member 85 is rotated toward the liquid inlet 35 (FIG. 22). .. The liquid adhering to the sealing surface 87s of the lid member 85 is transmitted to the groove 96 by gravity while the lid member 85 is in a state where the liquid inlet 35 is open (FIG. 18). When the lid member 85 attempts to close the liquid inlet 35, the liquid accumulated in the groove 96 is guided by the groove 96 and flows to the liquid receiving portion 80, and is stored in the liquid receiving portion 80 (FIG. 22). ..

In this way, the protrusion 95 functions as a gutter that guides the liquid adhering to the sealing surface 87s to the liquid receiving portion 80. As a result, the liquid adhering to the sealing surface 87s of the lid member 85 is suppressed from being transmitted to a portion other than the liquid receiving portion 80, and the contamination of the liquid storage container 10A by the liquid is suppressed. Further, it is suppressed that the liquid adhering to the sealing surface 87s of the lid member 85 is transmitted to the second wall portion 22 and adheres to the visual recognition portion 38, and the visibility of the scale 39 is deteriorated.

A2-5-4. Injecting liquid into the liquid inlet:
The liquid injection operation to the liquid inlet 35 will be described with reference to FIGS. 18, 20, and 23. During the liquid injection operation, the liquid injection tool 600 is used (FIG. 23). The liquid injection tool has a configuration in which a tubular spout 602 for discharging the liquid inside the bag-shaped member 601 is attached to an end portion of the bag-shaped member 601 that houses the liquid inside. The spout 602 extends from the bag-shaped member 601. The bag-shaped member 601 has an overhanging portion 603. The overhanging portion 603 is a portion extending in a direction intersecting the extending direction of the spout 602 from the portion to which the spout 602 is attached.

The user performs the liquid injection operation in a state where the opening end of the spout 602 is directed toward the liquid inlet 35 and the bag-shaped member 601 is tilted. When injecting the liquid, the user can confirm the amount of the liquid in the storage chamber 31 by referring to the scale 39 of the visual recognition unit 38.

FIG. 18 illustrates the position of the liquid injection tool 600 when the liquid injection operation is being performed by a alternate long and short dash line. As described above, the concave portion 82r is provided at the upper end portion of the convex wall portion 82 provided on the upper wall surface 23s of the third wall portion 23 of the container main body 11. Further, a recess 98 recessed in the −Y direction and the −Z direction is provided at the corner portion between the second wall portion 22 and the third wall portion 23 of the container main body 11. The two recesses 82r and 98 are provided so as to be aligned with the liquid inlet 35 in the Y direction. More specifically, the two recesses 82r and 98 are provided so as to intersect the central axis CX of the liquid inlet 35 and be located on the axis PX parallel to the Y direction (FIG. 20).

During the liquid injection operation, the two recesses 82r, 98 receive a part of the liquid injection tool 600. The two recesses 82r and 98 receive the gusset portion which is the end portion of the overhanging portion 603 of the liquid injection tool 600 and support the liquid injection tool 600. Hereinafter, the recesses 82r and 98 are also referred to as “support recesses 82r and 98”, respectively. When distinguishing between the two, the recess 82r is also referred to as a "first support recess 82r", and the recess 98 is also referred to as a "second support recess 98".

According to the liquid storage container 10A, when the liquid injection tool 600 is supported by the first support recess 82r during the liquid injection work, the posture of the liquid injection tool 600 becomes unstable and the liquid spills. Is suppressed. In particular, if the liquid injection tool 600 is supported at two points, the first support recess 82r and the second support recess 98, the posture stability of the liquid injection tool 600 during the liquid injection work is further enhanced. Further, according to the liquid storage container 10A, the liquid transmitted from the liquid injection tool 600 to the convex wall portion 82 can be received by the first support recess 82r at the upper end thereof. Therefore, it is further suppressed that the liquid adheres to the outer wall surface of the liquid storage container 10A. Further, the decrease in visibility of the scale 39 due to the liquid spilled from the liquid inlet 35 is further suppressed.

A2-5-5. Details of the inner wall:
In the storage chamber 31, an inner wall portion 65 hangs downward in the vicinity of the liquid inlet 35 (FIG. 21). In the first embodiment, the inner wall portion 65 is provided so that the wall surface thereof extends continuously from the inner peripheral surface of the liquid inlet 35 on the −Y direction side. According to the liquid storage container 10A, during the liquid injection operation, the liquid poured from the liquid inlet 35 can be smoothly guided to the bottom surface 31b of the storage chamber 31 through the inner wall portion 65. .. Therefore, the liquid poured from the liquid inlet 35 suppresses the foaming of the liquid in the storage chamber 31, and suppresses the mixing of air bubbles into the liquid. Therefore, the decrease in the supply of the liquid to the liquid consuming device 500 due to the bubbles in the liquid is suppressed.

Further, due to the bubbling of the liquid in the storage chamber 31, the position of the liquid surface visually recognized from the visual recognition unit 38 becomes unclear, and it becomes difficult for the user to confirm the amount of the liquid through the visual recognition unit 38. It is suppressed. Therefore, it is possible to prevent the liquid from spilling from the liquid inlet 35 due to the excessive injection amount of the liquid. In addition, since the introduction of the liquid into the storage chamber 31 is facilitated by the inner wall portion 65, it is possible to suppress the generation of droplets scattered to the outside of the storage chamber 31 through the liquid inlet 35 during the injection of the liquid. .. Therefore, the liquid storage container 10A and the user's body are not contaminated by such droplets.

It is desirable that the inner wall portion 65 is provided at a position where at least a part of the liquid inlet 35 can be seen when the liquid inlet 35 is viewed from the outside of the container main body 11 (FIG. 20). As a result, the user can visually recognize the position of the inner wall portion 65 during the liquid injection operation, and the user can be urged to pour the liquid toward the inner wall portion 65. In this case, the direction in which the liquid inlet 35 is viewed from the outside of the container body 11 does not have to be the −Z direction as shown in FIG. 20, and the liquid inlet 35 is directed from the user's position during the liquid injection operation. The direction is fine.

The upper end of the inner wall portion 65 is connected to the third wall portion 23, and the end portion on the + X direction side is connected to the sixth wall portion 26 (FIG. 10). As a result, the strength of the opening housing member 60 is increased. Further, the end surface of the inner wall portion 65 on the −X direction side is welded to the film member 63 (FIG. 12). As a result, in the liquid storage container 10A, the welding area of the film member 63 is increased by the amount of the arrival region of the inner wall portion 65, and the bonding strength of the film member 63 to the opening housing member 60 is increased. As described above, in the liquid storage container 10A, the inner wall portion 65 functions as a reinforcing rib in the storage chamber 31 that enhances the strength and durability of the liquid storage container 10A.

In the liquid storage container 10A, the lower end 65e of the inner wall portion 65 is located above the bottom surface 31b (FIG. 11). Therefore, when the liquid in the storage chamber 31 is consumed in the liquid consuming device 500, the inner wall portion 65 suppresses the liquid from remaining in the region A2 on the + Y direction side of the inner wall portion 65. In the first embodiment, the lower end 65e of the inner wall portion 65 is provided at a position closer to the bottom surface 31b than the upper surface 31u of the accommodation chamber 31. The lower end 65e of the inner wall portion 65 is located above the lower limit scale 39L. More specifically, the lower end 65e of the inner wall portion 65 is (1/4) · H or less from the height of the lower limit scale 39L, where H is the distance between the upper surface 31u and the lower limit scale 39L in the Z direction. Located at height. As a result, the state in which the inner wall portion 65 is in contact with the liquid is maintained until the position of the liquid surface approaches the position of the lower limit scale 39L. Therefore, it is possible to obtain the effect of suppressing the foaming of the liquid and the generation of droplets in the storage chamber 31 in the liquid injection operation as described above in a wide range until the liquid in the storage chamber 31 approaches the lower limit amount. can.

The inner wall portion 65 has an end convex portion 101 projecting along the insertion direction at the lower end 65e (FIG. 21). The end convex portion 101 is formed as a portion where the thickness is locally increased at the lower end 65e of the inner wall portion 65 and the end portion is projected from the wall surface of the inner wall portion 65. In the first embodiment, the convex end portion 101 projects in the + Y direction toward the liquid inlet 35 side. Therefore, during the liquid injection operation when the position of the liquid surface in the storage chamber 31 is located below the end convex portion 101, the liquid flowing downward along the inner wall portion 65 by the end convex portion 101. You can lose momentum. Therefore, even when the position of the liquid level in the storage chamber 31 is located below the lower end 65e of the inner wall portion 65, it is possible to suppress the foaming of the liquid in the storage chamber 31 during the liquid injection operation. can. Further, the generation of droplets due to the vigorous collision of the liquid with the liquid surface in the storage chamber 31 is suppressed. Therefore, it is possible to prevent such droplets from being scattered to the outside through the liquid inlet 35 and contaminating the outer wall surface of the liquid storage container 10A and the user's body. In the first embodiment, the upper surface of the convex end portion 101 facing the + Z direction constitutes a plane along the Y direction. Therefore, the momentum of the liquid flowing along the inner wall portion 65 can be more effectively softened, and the foaming of the liquid in the storage chamber 31 and the scattering of the droplets from the liquid inlet 35 as described above are further suppressed. Will be done.

In the liquid storage container 10A, since the inner wall portion 65 has the end convex portion 101, the connecting portion between the inner wall portion 65 and the inner wall surface 26s of the storage chamber 31 is expanded. Therefore, the inner wall portion 65 is more firmly fixed to the inner wall surface 26s of the accommodation chamber 31. Further, the convex portion 101 at the end increases the welding area with the film member 63 at the lower end 65e of the inner wall portion 65 (FIG. 12). Therefore, it is possible to prevent the film member 63 from peeling from the inner wall portion 65 starting from the lower end 65e of the inner wall portion 65. As described above, in the liquid storage container 10A, the fixing property of the inner wall portion 65 to the wall portions 25 and 26 is enhanced by the end convex portion 101 of the inner wall portion 65, and the function of the inner wall portion 65 as a reinforcing rib is further enhanced. It has been further enhanced.

At the upper end of the inner wall portion 65, a communication portion 102 that communicates two adjacent regions in the accommodation chamber 31 partitioned in the insertion direction by the inner wall portion 65 with each other is provided (FIG. 11). The communication portion 102 is formed as a flow path between the concave portion locally recessed in the + X direction at the end portion of the inner wall portion 65 on the −X direction side and the film member 63 (FIGS. 11 and 12). ). As a result, when the liquid is injected from the liquid inlet 35, the air existing in the region on the insertion direction side from the inner wall portion 65 in the accommodation chamber 31 is released to the liquid inlet 35 through the communication portion 102. Can be done. Therefore, the work of injecting the liquid into the liquid storage container 10A is further facilitated.

A2-6. Atmospheric introduction section configuration:
FIG. 24A, FIG. 24B, and FIG. 25 are added as reference views, and the configuration of the atmosphere introduction unit 110 provided in the liquid storage container 10A will be described. FIG. 24A is a schematic perspective view showing a portion of the opening housing member 60 in which the second recess 61b constituting the atmosphere introduction portion 110 is formed. FIG. 24B is a schematic perspective view showing the internal structure of the atmosphere introduction unit 110. In FIG. 24B, the wall portion covering the upper part of the atmosphere introduction portion 110 is omitted from the configuration shown in FIG. 24A. FIG. 25 is a schematic side view of the opening housing member 60 when the same portion as in FIG. 24A is viewed in the + X direction.

The atmosphere introduction unit 110 is provided above the accommodation chamber 31 (FIGS. 10 to 13). The atmosphere introduction portion 110 is provided along the insertion direction in the region on the first wall portion 21 side in the insertion direction. The atmosphere introduction section 110 is provided below the rail section 41. The atmosphere introduction unit 110 connects the storage chamber 31 and the outside of the liquid storage container 10A. In the liquid storage container 10A, outside air is introduced into the storage chamber 31 through the atmosphere introduction unit 110 as the liquid is consumed in the storage chamber 31. The air introduction unit 110 has a storage chamber air port 111, a container air port 112, and an air passage 113 (FIGS. 24A and 24B).

The containment chamber air port 111 is open in the containment chamber 31 (FIGS. 24A and 24B). The containment chamber air port 111 functions as an inlet / outlet for air to the containment chamber 31. The accommodation chamber atmosphere port 111 is formed between a recess provided so as to be locally recessed in the + X direction at the end portion of the wall portion 60w of the opening housing member 60 on the −X direction side and the film member 63. It is configured as a through hole (FIG. 12).

The containment chamber atmosphere port 111 is provided at a central portion in the longitudinal direction of the containment chamber 31 (FIGS. 11 and 12). As mentioned above, in the present specification, "center" means a position substantially central, meaning a position some distance from both ends, and "central part" means some distance from both ends. Means the part of the body. When the length of the accommodation chamber 31 in the Y direction, which is the longitudinal direction, is L, the accommodation chamber atmosphere port 111 is centered on the center of the accommodation chamber 31 in the Y direction, and the width in the Y direction is within 0.5 · L. It is formed in the area. It is desirable that the containment chamber air port 111 is provided at a position not too far from the center of the containment chamber 31 in the Y direction. The width of the formation region of the above-mentioned containment chamber atmosphere port 111 in the Y direction is preferably 0.3 · L or less, and more preferably 0.1 · L or less.

The container atmosphere port 112 is open on the outer wall surface of the sixth wall portion 26 on the + X direction side (FIGS. 24A and 24B). In FIGS. 24A and 25, the container atmosphere port 112 is not visible, and is therefore shown by a broken line for convenience. The container air port 112 opens outside the container body 11 and functions as an air inlet / outlet between the air introduction unit 110 and the outside of the liquid storage container 10A. The container atmosphere port 112 is open at the first end portion 12 (FIG. 25). The container atmosphere port 112 is open in the vicinity of the first wall portion 21 (FIG. 11). The container atmosphere port 112 is connected to the atmosphere passage 113 through a through passage 115 configured as a through hole extending from the sixth wall portion 26 in the X direction in the upper region of the atmosphere passage 113. There is. The end portion of the through flow path 115 on the −X direction side is open at a position closer to the fifth wall portion 25 (FIG. 10) in the X direction (FIG. 24B).

The air passage 113 is an air passage extending along the insertion direction and connected to the storage chamber air port 111 and the container air port 112 (FIGS. 24A, 24B, 25). The air passage 113 has a first air passage portion 121 on the + Y direction side and a second air passage portion on the −Y direction side by a passage partition wall 116 provided between the accommodation chamber air port 111 and the container air port 112. It is divided into 122 and. The passage partition wall 116 is provided at a position closer to the container atmosphere port 112 and the through flow path 115 than the storage chamber air port 111 in the insertion direction (FIG. 25). The end portion of the passage partition wall 116 on the + X direction side is connected to the inner wall surface 26s of the sixth wall portion 26, and the end portion on the −X direction side is welded to the film member 63 (FIG. 10).

The first atmospheric passage portion 121 and the second atmospheric passage portion 122 communicate with each other via an atmospheric communication portion 117 penetrating the passage partition wall 116 in the thickness direction (FIGS. 24A, 24B, 25). In the first embodiment, the atmospheric communication portion 117 penetrates the passage partition wall 116 in the insertion direction. In the liquid storage container 10A, the atmospheric communication portion 117 is a penetration formed between the recess formed by locally recessing the end portion of the passage partition wall 116 on the −X direction side in the + X direction and the film member 63. It is configured as a hole (FIGS. 11 and 12). The air communication portion 117 is provided at the upper end of the passage partition wall 116 (FIG. 25).

The containment chamber atmosphere port 111 is provided in the first air passage portion 121 (FIGS. 24A, 24B, 25). The containment chamber air port 111 is provided at the lower end of the first air passage portion 121. The containment chamber air port 111 is located at the end of the first air passage portion 121 in the + Y direction. Further, the accommodation chamber atmosphere port 111 is located at the end of the first air passage portion 121 in the −X direction.

The container air port 112 is connected to the second air passage portion 122 via the through flow path 115 (FIG. 24B, FIG. 25). The container atmosphere port 112 is connected to the end portion of the second air passage portion 122 on the −Y direction side via the through flow path 115. The container air port 112 is connected to the second air passage portion 122 via the through flow path 115 at a position closer to the upper end than the lower end of the second air passage portion 122.

The air passage 113 has an inclined wall surface 118 which is a bottom surface inclined downward from the container air port 112 toward the accommodation chamber air port 111 (FIGS. 24A, 24B, 25). The inclined wall surface 118 is provided in the first atmospheric passage portion 121. The inclined wall surface 118 is connected to the containment chamber atmosphere port 111. The inclined wall surface 118 is inclined so as to be gradually lowered in the + Y direction toward the accommodation chamber atmosphere port 111 (FIG. 25). Further, the inclined wall surface 118 is inclined toward the accommodation chamber atmosphere port 111 so as to be gradually lowered in the −X direction (FIGS. 24A and 25B).

The first atmospheric passage portion 121 and the second atmospheric passage portion 122 are each provided with one or more passage ribs 123 extending along the X direction (FIG. 24B). In the first atmospheric passage portion 121, a plurality of passage ribs 123 are arranged in the Y direction at predetermined intervals. The second atmospheric passage portion 122 is provided with one passage rib 123 at a position closer to the end on the −Y direction side.

Each passage rib 123 extends in the atmospheric passage 113 in the Z direction (FIG. 25). Each passage rib 123 extends in the −X direction from the end of the atmospheric passage 113 on the + X direction side (FIG. 24B). The end of each passage rib 123 on the −X direction side is located on the + X direction side from the end of the atmospheric passage 113 in the X direction so as not to obstruct the flow of air in the atmospheric passage 113.

In the second atmospheric passage portion 122, the passage rib 123 extends in the X direction along the through passage 115 on the + Y direction side of the through passage 115 (FIG. 24B). The end portion of the passage rib 123 of the second atmospheric passage portion 122 on the −X direction side protrudes in the −X direction from the end portion of the through flow path 115 on the −X direction side.

In the liquid storage container 10A, the atmosphere introduction unit 110 is provided in a region above the storage chamber 31 on the first wall portion 21 side of the center of the container body 11 in the Y direction (FIGS. 10 and 11). On the other hand, the liquid inlet 35 is provided in the region of the container body 11 on the second wall portion 22 side of the center in the Y direction. As described above, in the liquid storage container 10A, the atmosphere introduction portion 110 is formed at a position separated from the liquid inlet 35 in the −Y direction. Therefore, it is possible to increase the opening width of the liquid inlet 35 in the Y direction and increase the opening area of the liquid inlet 35 while avoiding interference with the atmosphere introduction portion 110. Further, since the atmosphere introduction portion 110 and the liquid inlet 35 are arranged in series in the Y direction, the container body 11 is arranged in the X direction as compared with the case where they are arranged in parallel in the X direction. The width of the liquid storage container 10A can be reduced to make the liquid storage container 10A compact.

In the air introduction section 110 of the liquid storage container 10A, the container air port 112 is connected to the air passage 113 at a position above the air port 111 of the storage chamber (FIGS. 24B and 25). Therefore, even if the liquid enters the air passage 113, the liquid is suppressed from reaching the container atmosphere port 112 from the air passage 113. Therefore, the leakage of the liquid from the container atmosphere port 112 is suppressed.

In the atmosphere introduction section 110 of the liquid storage container 10A, the atmosphere passage 113 has an inclined wall surface 118 (FIG. 25). Therefore, even if the liquid enters the air passage 113 through the containment chamber atmosphere port 111, the liquid is guided to the containment chamber atmosphere port 111 along the inclined wall surface 118 by gravity and returned to the containment chamber 31. Therefore, it is possible to prevent the liquid in the storage chamber 31 from leaking through the atmosphere introduction unit 110.

In the air introduction section 110 of the liquid storage container 10A, the storage chamber air port 111 is provided at the central portion of the storage chamber 31 in the Y direction (FIG. 25). At the central portion of the storage chamber 31 in the Y direction, the displacement of the liquid level when the liquid level of the storage chamber 31 swings so that both ends of the storage chamber 31 alternately shift up and down in the Y direction is relatively small. Therefore, even if the liquid level of the accommodation chamber 31 fluctuates greatly, it is suppressed that the liquid of the accommodation chamber 31 enters the atmosphere introduction unit 110 through the air inlet 111 of the accommodation chamber, and the liquid storage container through the air introduction unit 110 is suppressed. Leakage of liquid to the outside of 10A is suppressed. In the liquid storage container 10A of the first embodiment, the Y direction coincides with the longitudinal direction of the storage chamber 31. In such a storage chamber 31, fluctuations of the liquid in which the positions of the liquid surfaces are alternately displaced at both ends in the longitudinal direction are likely to occur. Further, in the central portion in the longitudinal direction when such fluctuation occurs, the displacement of the liquid surface is further suppressed as compared with other portions. Therefore, in the liquid storage container 10A in which the storage chamber 31 has a shape with the Y direction as the longitudinal direction, it is further suppressed that the liquid enters the storage chamber atmosphere port 111 due to such fluctuation of the liquid. To. The fluctuation of the liquid level in the storage chamber 31 as described above is, for example, when the liquid storage container 10A is shaken to stir the liquid in the storage chamber 31, or the liquid storage container for the liquid consumption device 500 is used. It occurs during the attachment / detachment operation of the 10A, the transportation of the liquid storage container 10A, and the like.

In the air introduction portion 110 of the liquid storage container 10A, the atmospheric passage 113 is divided into a first atmospheric passage portion 121 and a second atmospheric passage portion 122 by a passage partition wall 116 (FIGS. 24A, 24B, and 24B). FIG. 25). Therefore, even if the liquid enters the air introduction portion 110 through the air inlet 111 of the accommodation chamber, the movement of the liquid from the first air passage portion 121 to the second air passage portion 122 is suppressed. Therefore, it is possible to prevent the liquid from leaking to the outside of the liquid storage container 10A through the atmosphere introduction unit 110.

In the air introduction portion 110 of the liquid storage container 10A, the air inlet 111 of the storage chamber is provided at the end of the first air passage portion 121 on the opposite side of the passage partition wall 116 (FIGS. 24B and 25). In this way, since the accommodation chamber atmosphere port 111 is provided at a position away from the passage partition wall 116, the liquid that has entered the first atmospheric passage portion 121 from the accommodation chamber atmosphere port 111 reaches the passage partition wall 116. Is suppressed.

Further, in the liquid storage container 10A, the passage partition wall 116 is provided at a position closer to the container atmosphere port 112 and the through flow path 115 than the storage chamber air port 111, and the storage chamber air port 111 and the passage partition wall 116 are provided. The distance between them is even longer (FIG. 24B, FIG. 25). Therefore, it is further suppressed that the liquid that has entered the first atmospheric passage portion 121 reaches the passage partition wall 116.

In the liquid storage container 10A, passage ribs 123 are provided in each of the first air passage portion 121 and the second air passage portion 122. As a result, it is suppressed that the flow path of the atmosphere is blocked in each of the atmospheric passage portions 121 and 122 due to the deformation of the wall portion constituting the atmospheric passage 113. Further, in the first atmospheric passage portion 121, the passage rib 123 suppresses the liquid that has entered the first atmospheric passage portion 121 from reaching the passage partition wall 116. In the second atmospheric passage portion 122, as described above, the end portion of the passage rib 123 on the −X direction side is located on the −X direction side of the end portion of the through passage on the −X direction side. As a result, the liquid that has reached the second atmospheric passage portion 122 is prevented from entering the through passage 115.

In the liquid storage container 10A, the air communication portion 117 that communicates the first air passage portion 121 and the second air passage portion 122 is provided at the upper end of the passage partition wall 116 (FIGS. 24B and 25). As a result, the liquid that has entered the first atmospheric passage portion 121 is further suppressed from passing over the passage partition wall 116 and reaching the second atmospheric passage portion 122.

In the air introduction section 110 of the liquid storage container 10A, the container atmosphere port 112 is connected at the end of the second air passage section 122 opposite to the passage partition wall 116 (FIGS. 24B and 25). In this way, since the container atmosphere port 112 is connected to the second air passage portion 122 at a position away from the passage partition wall 116, the liquid that has passed through the passage partition wall 116 and entered the second air passage portion 122 can enter. , Reaching to the container atmosphere port 112 is further suppressed. Further, in the liquid storage container 10A, since the connection position of the container air port 112 with respect to the second air passage portion 122 is a position closer to the upper end of the second air passage portion 122, the liquid in the second air passage portion 122 is a container. It is even more difficult to reach the air outlet 112.

As described with reference to FIGS. 11 and 12, in the liquid storage container 10A, the recesses 61a, 61b, 61c of the opening housing member 60 are closed by the film member 63 to introduce the storage chamber 31 and the atmosphere. A portion 110 and an outlet flow path 78 are formed. As described above, according to the liquid storage container 10A, the storage chamber 31, the outlet flow path 78, and the atmosphere introduction portion 110 are simply configured inside the container main body 11 by a simple configuration.

A2-7. Installation of liquid storage container on liquid supply unit:
FIG. 26, FIG. 27, and FIG. 28 are added as reference views, and a state in which the liquid storage container 10A is attached to the liquid supply unit 520 of the liquid consumption device 500 will be described. FIG. 26 is a schematic perspective view showing a liquid supply unit 520 in which a plurality of liquid storage containers 10A are mounted. FIG. 27 is a schematic plan view of the liquid supply unit 520 in which a plurality of liquid storage containers are mounted when viewed in the −Z direction. FIG. 28 is a schematic cross-sectional view of the liquid storage container 10A and the liquid supply unit 520 in the 28-28 cutting shown in FIG. 27. In FIG. 28, hatching of the cross section is omitted for convenience.

The liquid supply unit 520 has a liquid supply pipe 523 extending in the + Y direction (FIG. 28). When the liquid storage container 10A is attached, the tip of the liquid supply pipe 523 on the + Y direction side is inserted into and connected to the liquid outlet 33 of the liquid storage container 10A. The liquid supply tube 523 is connected to a flexible tube 513 (FIGS. 26-28). The liquid supply unit 520 causes the liquid in the storage chamber 31 of the liquid storage container 10A to flow out from the liquid outlet 33 to the liquid supply pipe 523 by the suction force generated by the suction pump 524, and the liquid is headed 511 through the tube 513. Supply to (Fig. 1).

The liquid supply unit 520 has a rod 525 described with reference to FIG. 17 below the liquid supply pipe 523 (FIG. 28). The rod 525 extends in the + Y direction in parallel with the liquid supply pipe 523. As described above, the rod 525 is inserted into the second recess 55b of the liquid storage container 10A when the liquid storage container 10A is attached to the liquid supply unit 520.

The liquid supply unit 520 further has a device-side terminal unit 526 above the liquid supply pipe 523 (FIG. 28). The device-side terminal portion 526 has a connection terminal 527 that electrically contacts the electrical connection portion 50 of the liquid storage container 10A. As described above, when the liquid storage container 10A is attached to the liquid supply unit 520, the connection terminal 527 of the device side terminal unit 526 comes into contact with the electrode plate 53 (FIG. 9) of the electrical connection unit 50 from above.

The liquid supply unit 520 has an identification member 528 on its bottom surface. The identification member 528 is configured as a rectangular structure protruding upward from the bottom surface portion. When the liquid storage container 10A is attached to the liquid supply unit 520, the identification member 528 is housed in the recess 58 provided at the lower end corner of the first wall portion 21 of the liquid storage container 10A.

The inner wall surface of the recess 58 of the plurality of liquid storage containers 10A mounted on the liquid consumption device 500 has a different shape depending on the type of liquid contained (for example, the color of ink in the first embodiment). is doing. The identification member 528 of the liquid supply unit 520 has a shape that fits into the shape of the inner wall surface of the recess 58 of the liquid storage container 10A to be mounted. This prevents the liquid storage container 10A from being inserted into the wrong mounting portion.

A2-8. Rail function:
See FIG. 26. A guide groove 522 extending in the Y direction is provided at the upper end of the container insertion port 521 of the liquid supply unit 520 of the liquid consumption device 500. The guide groove 522 has a shape that protrudes from the upper wall surface 23s of the liquid storage container 10A and into which the first rail portion 41 extending along the insertion direction fits. At the lower end of the container insertion port 521, a guide groove 522 having a shape that protrudes from the bottom wall surface 24s of the liquid storage container 10A and has a shape in which the second rail portion 42 extending along the insertion direction is fitted is provided. (Fig. 28).

When the liquid storage container 10A is mounted on the liquid consumption device 500, the insertion of the liquid storage container 10A into the container insertion port 521 is guided by inserting the first rail portion 41 into the guide groove 522. Therefore, the user can easily attach / detach the liquid storage container 10A to / from the liquid supply unit 520 of the liquid consumption device 500. In particular, in the liquid storage container 10A, since the insertion of the liquid storage container 10A is guided by the two rail portions 41 and 42 provided on the upper and lower sides, the liquid storage container 10A is stored when the liquid storage container 10A is inserted into the liquid consumption device 500. The posture of the container 10A is further stabilized.

The two rail portions 41 and 42 extend in the + Y direction from the guide groove 522 in the mounted state. This guides the insertion of the liquid storage container 10A until the mounting on the liquid consuming device 500 is completed. Further, since the lengths of the two rail portions 41 and 42 in the Y direction are long, the liquid storage container 10A has a stable posture with respect to various liquid consuming devices of the type having a long guide groove length in the Y direction. Insert operation is possible.

The manufacturing process of the liquid storage container 10A will be described with reference to FIGS. 5, 7, and 10 to 12. The rail portions 41 and 42 function as a reference portion for positioning when assembling the liquid storage container 10A.

In the first step, the opening housing member 60 is prepared (FIG. 10). In this step, the rail portions 41 and 42 may be used as a handling portion for handling the opening housing member 60. In the first step, the electrical connection portion 50 is attached in the recess 51 of the opening housing member 60. Further, the filter 72 is arranged in the filter chamber 71 of the opening housing member 60, and the filter chamber 71 is sealed by the film member 74. In the first step, the film member 63 is welded to the opening housing member 60, and the openings of the recesses 61a, 61b, 61c of the opening housing member 60 are closed at once (FIG. 12).

In the second step, the container lid member 62 (FIG. 10) is attached to the opening housing member 60 to which the film member 63 is welded. When the container lid member 62 is properly attached to the opening housing member 60, the end face 67t on the + X direction side of the peripheral wall portion 67 of the container lid member 62 abuts on the rail portions 41 and 42 (FIGS. 5 and 5). FIG. 7). At the end surface 67t on the + X direction side of the peripheral wall portion 67 , the peripheral wall portion 67 contacts the rail portions 41 and 42 in the contact region CA extending linearly along the insertion direction. In the second step, the film member 63 is covered with the main body wall portion 66 of the container lid member 62, and the filter chamber 71 is sealed by the filter chamber wall portion 67f which is a part of the peripheral wall portion 67. The film member 74 is covered (FIG. 7).

As described above, in the second step, the peripheral wall portion 67 of the container lid member 62 comes into contact with the rail portions 41 and 42 when the container lid member 62 is attached to the opening housing member 60, and the container lid member 62. It functions as a positioning unit for positioning the 62. The rail portions 41 and 42 function as reference portions for positioning the container lid member 62.

According to the liquid storage container 10A, the container lid member 62 is positioned with respect to the rail portions 41 and 42 that are easily confirmed and conspicuous in the opening housing member 60. Therefore, it is possible to prevent a gap from being formed between the container lid member 62 and the opening housing member 60 during the production of the liquid container 10A. Therefore, it is possible to prevent foreign matter from entering the liquid storage container 10A through such a gap. Therefore, for example, the film members 63 and 74 are torn, and the occurrence of failure of the liquid storage container 10A due to the entry of such foreign matter is suppressed.

According to the liquid storage container 10A, the peripheral wall portion 67 contacts the rail portions 41 and 42 in the contact region CA extending linearly along the insertion direction. As described above, since the contact area between the positioning portion and the reference portion thereof is large, the positioning accuracy of the container lid member 62 with respect to the rail portions 41 and 42 is improved. Therefore, it is further suppressed that a gap is generated between the opening housing member 60 and the container lid member 62.

According to the liquid storage container 10A, the rail portions 41 and 42 are provided at the central portion of the upper wall surface 23s or the bottom wall surface 24s in the X direction. Therefore, in the manufacturing process, the peripheral wall portion 67 of the container lid member 62 is brought into contact with the outer wall surface of the opening housing member 60 in order to bring the peripheral wall portion 67 of the container lid member 62 into contact with the rail portions 41 and 42. It will be pushed to ride deeply in the X direction. Therefore, the generation of a gap between the opening housing member 60 and the container lid member 62 is further suppressed. In the liquid storage container 10A, the filter chamber wall portion 67f of the peripheral wall portion 67 also abuts on the end portion of the second rail portion 42 on the −Y direction side as one of the positioning portions for positioning the container lid member 62. It works (Fig. 7). As a result, the generation of a gap between the opening housing member 60 and the container lid member 62 is further suppressed.

In the manufacturing process of the liquid storage container 10A, rail portions 41 and 42 that function as guide portions when the liquid storage container 10A is attached to and detached from the liquid consumption device 500 are used as a reference for positioning the container lid member 62. Therefore, it is more efficient than the case where the opening housing member 60 is newly provided with the positioning portion of the container lid member 62.

In the above-mentioned second step, the container is placed in the opening housing member 60 by using the recess, the liquid inlet 35, and the attachment position of the lid member 85 constituting the liquid receiving portion 80 as a mark of the arrangement position of the outer peripheral end portion 62e of the container lid member 62. The lid member 62 can be attached. That is, the outer peripheral end portion 66e of the container lid member 62 can be used as one of the positioning portions when the container lid member 62 is attached to the opening housing member 60. As a result, it is possible to prevent a gap from being created between the opening housing member 60 and the container lid member 62. Even if there is a gap between the outer peripheral end portion 62e of the container lid member 62 and the opening housing member 60, the foreign matter is received by the concave portion constituting the liquid receiving portion 80, so that the foreign matter enters the gap. It is suppressed that it ends up. Further, since the liquid spilled from the liquid inlet 35 is received by the liquid receiving portion 80, deterioration due to contamination of the container lid member 62 is suppressed. Therefore, when the container lid member 62 is removed from the opening housing member 60, it is possible to prevent the liquid from adhering to the body of the person performing the work.

Further, in the above-mentioned second step, the container lid member 62 can be attached to the opening housing member 60 by using the handle portion 40 as a mark of the arrangement position of the end portion 67e of the container lid member 62. That is, the end portion 67e of the container lid member 62 can also be used as one of the positioning portions when the container lid member 62 is attached to the opening housing member 60. As described above, in the liquid container 10A, the container lid member 62 has a plurality of portions that can function as positioning portions. Therefore, it is further suppressed that a gap is generated between the opening housing member 60 and the container lid member 62.

A3. Summary of the first embodiment:
As described above, according to the liquid storage container 10A of the first embodiment, the occurrence of clogging of the filter 72 due to foreign matter contained in the liquid of the storage chamber 31 is suppressed, and the liquid storage container 10A is transferred to the liquid consumption device 500. It is suppressed that the supply of the liquid is obstructed. Therefore, the deterioration of the liquid supply performance to the liquid consumption device 500 is suppressed. In addition, according to the liquid container 10A of the first embodiment, various effects described in the first embodiment can be obtained.

B. Second embodiment:
The configuration of the liquid storage container 10B of the second embodiment will be described with reference to FIG. 29. FIG. 29 is a schematic side view of the opening housing member 60B included in the liquid storage container 10B of the second embodiment when viewed in the + X direction. FIG. 29 illustrates the horizontal parallel axis HX when the liquid container 10 B is in the mounted state. The configuration of the liquid storage container 10B of the second embodiment is that of the liquid storage container 10A of the first embodiment except that the storage chamber 31 has an inclined bottom surface 31bB and the reinforcing wall portion 64 is omitted. It is almost the same as the configuration. The liquid storage container 10B of the second embodiment is attached to the liquid consumption device 500 described in the first embodiment.

In the liquid storage container 10B of the second embodiment, the bottom surface 31bB of the storage chamber 31 is inclined downward toward the filter chamber 71 so that the filter chamber 71 side is located below the liquid inlet 35 side in the insertion direction. .. The bottom surface 31bB of the storage chamber 31 is inclined so as to be gradually lowered toward the −Y direction. As a result, the fluidity of the liquid to the filter chamber 71 can be further increased, and the liquid supply performance to the liquid consumption device 500 of the liquid storage container 10B is enhanced. Further, even if the liquid in the storage chamber 31 is low, the remaining liquid can be guided to the filter chamber 71 by the horizontal inclination of the bottom surface 31bB. Therefore, it is possible to prevent the liquid from remaining in the storage chamber 31. Therefore, even though the user confirms that the liquid remains through the visual recognition unit 38, the supply of the liquid from the liquid storage container 10B to the liquid consuming device 500 may suddenly stop. It is suppressed. The bottom surface 31bB can promote the flow of the liquid to the filter chamber 71, but has a slight inclination to prevent foreign matter settling in the bottom surface 31bB from being guided to the filter chamber 71. It is desirable to have horns. The accommodation chamber 31 of the second embodiment may also be provided with the reinforcing wall portion 64 (FIG. 11) described in the first embodiment.

As described above, according to the liquid storage container 10B of the second embodiment, the liquid supply performance to the liquid consumption device 500 is enhanced by having the bottom surface 31bB of the storage chamber 31 inclined toward the filter chamber 71. Has been done. In addition, according to the liquid storage container 10B of the second embodiment, various functions and effects similar to those of the liquid storage container 10A of the first embodiment can be obtained.

C. Third embodiment:
The configuration of the liquid storage container 10C of the third embodiment will be described with reference to FIG. 30. FIG. 30 is a schematic cross-sectional view schematically showing the configuration of the filter chamber 71 provided in the liquid storage container 10C of the third embodiment on the cut surface along the Y direction. The configuration of the liquid storage container 10C of the third embodiment is the liquid storage container of the first embodiment except that the filter 72C is arranged in the filter chamber 71 in place of the filter 72 described in the first embodiment. It is almost the same as the configuration of 10A. The liquid storage container 10C of the third embodiment is attached to the liquid consumption device 500 described in the first embodiment.

The filter 72C of the third embodiment has a multilayer structure in which two or more members having different grain roughness of pores through which a liquid passes are laminated. More specifically, the filter 72C has a two-layer structure in which the coarse-grained first filter layer f1 is arranged in the lower layer and the fine-grained second filter layer f2 is arranged in the upper layer.

According to the liquid storage container 10C of the third embodiment, the filter 72C can efficiently remove foreign substances of various sizes and suppress the occurrence of clogging of the filter 72C. The filter 72C is not limited to the two-layer structure. The filter 72C may be further configured with a plurality of layers laminated according to the width of the size of the foreign matter assumed to be removed.

As described above, according to the liquid storage container 10C of the third embodiment, the filter 72C having a multi-layer structure enhances the performance of removing foreign substances in the liquid. In addition, according to the liquid storage container 10C of the third embodiment, various functions and effects similar to those of the liquid storage container 10A of the first embodiment can be obtained.

D. Fourth Embodiment:
The configuration of the liquid storage container 10D of the fourth embodiment will be described with reference to FIGS. 31A and 31B. FIG. 31A is a schematic perspective view showing the configuration of the inner wall portion 65D provided in the storage chamber 31 of the liquid storage container 10D of the fourth embodiment. FIG. 31B is a schematic side view of the inner wall portion 65D provided in the storage chamber 31 of the liquid storage container 10D of the fourth embodiment when viewed in the + X direction. The configuration of the liquid storage container 10D of the fourth embodiment is the liquid storage container of the first embodiment except that the inner wall portion 65D having a different arrangement angle is provided instead of the inner wall portion 65 described in the first embodiment. It is almost the same as the configuration of 10A. The liquid storage container 10D of the fourth embodiment is attached to the liquid consumption device 500 described in the first embodiment.

The inner wall portion 65D of the fourth embodiment has substantially the same configuration as the inner wall portion 65 of the first embodiment except that the arrangement angle is different. The inner wall portion 65D hangs down from the upper surface 31u in an inclined state so that the lower end 65e is located closer to the second wall portion 22 than the upper end.

According to the liquid storage container 10D of the fourth embodiment, even if the liquid to be injected contains a foreign substance in the liquid injection operation from the liquid inlet 35, the foreign substance is removed by the inner wall portion 65D to the second wall. It can be guided toward the part 22. Therefore, it is suppressed that foreign matter reaches the filter 72, and the occurrence of clogging of the filter 72 is suppressed. In addition, according to the liquid storage container 10D of the fourth embodiment, various functions and effects similar to those of the liquid storage container 10A of the first embodiment can be obtained.

E. Fifth Embodiment:
The configuration of the liquid storage container 10E of the fifth embodiment will be described with reference to FIGS. 32A and 32B. FIG. 32A is a schematic perspective view showing the configuration of the inner wall portions 65a and 65b provided in the storage chamber 31 of the liquid storage container 10E of the fifth embodiment. FIG. 32B is a schematic side view of the inner wall portions 65a and 65b provided in the storage chamber 31 of the liquid storage container 10E of the fifth embodiment when viewed in the + X direction. The configuration of the liquid storage container 10E of the fifth embodiment is the liquid storage container of the first embodiment except that a pair of inner wall portions 65a and 65b are provided instead of the inner wall portion 65 described in the first embodiment. It is almost the same as the configuration of 10A. The liquid storage container 10E of the fifth embodiment is attached to the liquid consumption device 500 described in the first embodiment.

Each of the pair of inner wall portions 65a and 65b of the fifth embodiment has substantially the same configuration as the inner wall portions 65 of the first embodiment except for the points described below. The first inner wall portion 65a is located on the −Y direction side of the liquid inlet 35, and the second inner wall portion 65b is located on the + Y direction side of the liquid inlet 35. The first inner wall portion 65a is inclined downward toward the second inner wall portion 65b. The lower end of the first inner wall portion 65a overlaps with the opening region of the liquid inlet 35 in the Z direction, and is located at a position separated from the second inner wall portion 65b in the −Y direction. The lower end of the first inner wall portion 65a is located above the lower end of the second inner wall portion 65b.

The second inner wall portion 65b is inclined downward toward a direction away from the second wall portion 22. The lower end of the second inner wall portion 65b is located at a position overlapping the opening region of the liquid inlet 35 in the Z direction. The end convex portion 101 provided at the lower end 65e of the second inner wall portion 65b projects in the −Y direction. The end convex portion 101 of the second inner wall portion 65b is formed by locally increasing the thickness of the second inner wall portion 65b in the −Y direction.

In the liquid storage container 10E, the liquid poured by the user from the liquid inlet 35 is guided toward the second inner wall portion 65b along the surface of the first inner wall portion 65a on the liquid inlet 35 side, and then the second inner wall portion 65b. Along the surface on the liquid inlet 35 side, it travels to the bottom surface 31b of the storage chamber 31. In this way, the liquid poured from the liquid inlet 35 is injected into the storage chamber 31 while the inflow direction is changed by the two inner wall portions 65a and 65b. Therefore, since the momentum is attenuated in two stages by the two inner wall portions 65a and 65b, the bubbling of the liquid in the storage chamber 31 is further suppressed.

Further, foreign matter contained in the poured liquid can be captured at the upper end of the end convex portion 101 provided on each of the two inner wall portions 65a and 65b. Therefore, foreign matter in the liquid is suppressed from reaching the filter 72, and clogging of the filter 72 is suppressed.

In the liquid storage container 10E, the undulation of the liquid surface due to the liquid poured from the liquid inlet 35 due to the second inner wall portion 65b located on the second wall portion 22 side from the liquid inlet 35 causes the second wall portion 22 to undulate. It is suppressed from being transmitted to the liquid surface facing the visual recognition portion 38. Therefore, when the liquid is injected from the liquid inlet 35, it is possible to prevent the confirmation of the liquid amount in the storage chamber 31 via the visual recognition unit 38 from becoming inaccurate.

In the liquid storage container 10E, the strength of the opening housing member 60 is enhanced by the two inner wall portions 65a and 65b. Further, the joint strength of the container lid member 62 with respect to the opening housing member 60 is increased. In addition, according to the liquid storage container 10E of the fifth embodiment, various functions and effects similar to those of the liquid storage container 10A of the first embodiment can be obtained.

F. Sixth Embodiment:
The configuration of the liquid storage container 10F of the sixth embodiment will be described with reference to FIG. 33. FIG. 33 is a schematic perspective view showing a portion of the liquid storage container 10F of the sixth embodiment on the first end 12 side. The configuration of the liquid storage container 10F of the sixth embodiment is substantially the same as the configuration of the liquid storage container 10A of the first embodiment except that the electrical connection portion 50 is detachably configured. The liquid storage container 10F of the sixth embodiment is attached to the liquid consumption device 500 described in the first embodiment.

In the liquid storage container 10F, a part of the corners of the first wall portion 21 and the third wall portion 23 including the recess 51 in which the electrical connection portion 50 is arranged is separated from the opening housing member 60. It is configured as. The member is arranged with an electrical connection portion 50 to form a connector unit 125. The connector unit 125 has an engaging portion 126 that engages with the opening housing member 60, and is configured to be removable from the opening housing member 60.

According to the liquid storage container 10F, by separating the connector unit 125 from the container main body 11 at the time of maintenance of the liquid storage container 10F, it is possible to suppress the adhesion of the liquid to the electrical connection portion 50. Further, when the liquid storage container 10F is unexpectedly dropped, the connector unit 125 is separated from the container body 11 of the liquid storage container 10F, so that the impact force received by the drop can be dispersed and the liquid is stored. Damage to the container 10F is suppressed. In addition, according to the liquid storage container 10F of the sixth embodiment, various functions and effects similar to those of the liquid storage container 10A of the first embodiment can be obtained.

G. Seventh Embodiment:
The configuration of the liquid storage container 10G according to the seventh embodiment will be described with reference to FIG. 34. FIG. 34 is a schematic perspective view showing a state in which the liquid storage container 10G of the seventh embodiment is mounted on the liquid supply unit 520 of the liquid consumption device 500. The configuration of the liquid storage container 10G of the seventh embodiment is the configuration of the liquid storage container 10A of the first embodiment except that a connecting portion 130 for connecting the plurality of liquid storage containers 10G in the mounted state is provided. Is almost the same as.

The liquid storage container 10G of the seventh embodiment is attached to the liquid consumption device 500 described in the first embodiment. In the liquid consumption device 500, as described in the first embodiment, X intersects the insertion direction, that is, the direction from the upper wall surface 23s to the bottom wall surface 24s of the liquid storage container 10G. It is mounted in parallel in a state of being arranged in the direction.

The connecting portion 130 is composed of a connecting bar 131 and a bar support portion 132. The connecting bar 131 has a length equal to or greater than the width in the X direction of the arrangement region of the liquid storage container 10G in the liquid consuming device 500. The connecting bar 131 is configured as a plate-shaped member as shown in the figure. The connecting bar 131 may be configured as a rod-shaped member instead of a plate-shaped member.

The bar support portion 132 is provided at the first portion 15 of the liquid storage container 10G. The bar support portion 132 is configured to receive and support the connecting bar 131 when the liquid storage container 10G is in the mounted state. The bar support portion 132 is configured as a hook-shaped portion provided so as to project from the second wall portion 22 , and has a base end portion 132a extending in the + Y direction from the first wall portion 21 and a base end portion 132a to + Z. It has a tip portion 132b extending in the direction. The connecting bar 131 is arranged on the base end portion 132a and is sandwiched and supported by the tip end portion 132b and the second wall portion 22. It is desirable that the bar support portion 132 is provided so as to avoid the formation region of the scale 39 in the visual recognition portion 38.

The connecting bar 131 is arranged by the user so as to be erected in the X direction on the bar support portion 132 of each liquid storage container 10G in a state where all the liquid storage containers 10G are mounted on the liquid consumption device 500. As a result, in the liquid consuming device 500, the liquid storage containers 10G in the mounted state are connected to each other.

As described above, the liquid storage container 10G is attached to the second end portion 13 on the second wall portion 22 side, which is the rear end wall portion in the first portion 15, and to the liquid consuming device 500. A connecting portion 130 for connecting the liquid storage container 10G of the above is provided. As a result, it is possible to prevent only a part of the liquid storage container 10G from being pulled out while the liquid consumption device 500 is being driven. Further, it is possible to prevent the user from starting the driving of the liquid consumption device 500 in a state where a part of the liquid storage container 10G is not attached. In addition, according to the liquid storage container 10G of the seventh embodiment, various functions and effects similar to those of the liquid storage container 10A of the first embodiment can be obtained.

H. Eighth embodiment:
The configuration of the liquid storage container 10H of the eighth embodiment will be described with reference to FIGS. 35 and 36. FIG. 35 is a schematic perspective view schematically showing a state of connection work of the liquid storage container 10G of the eighth embodiment. FIG. 36 is a schematic perspective view schematically showing how the liquid storage container 10G of the eighth embodiment is disconnected from the connected state. The configuration of the liquid storage container 10H of the eighth embodiment is the same as that of the liquid storage container 10G of the seventh embodiment, except that the connection portion 135 having a configuration different from that of the connection portion 130 described in the seventh embodiment is provided. It is almost the same as the configuration.

The liquid storage container 10H of the eighth embodiment is attached to the liquid consumption device 500H of the eighth embodiment. The liquid consuming device 500H has substantially the same configuration as the liquid consuming device 500 of the first embodiment except for the points described below. The liquid consuming device 500H includes a key member 530 and a key member mounting portion 531 to which the key member 530 is attached / detached (FIG. 35).

The key member mounting portion 531 is provided as a hole portion of the liquid consuming device 500H that receives the insertion of the key member 530. The key member mounting portion 531 is provided in the vicinity of the container insertion port 521. The key member mounting unit 531 has a key detecting unit 532 that detects the insertion of the key member 530. The key detection unit 532 is configured by a sensor that optically detects the key member 530 inserted in the key member mounting unit 531. The key detection unit 532 may be configured by a switch that changes the electrical conduction state by inserting / removing the key member 530 from the key member mounting portion 531.

The control unit 510 of the liquid consumption device 500H uses the detection result of the key detection unit 532 to determine whether the liquid consumption device 500H is in a state in which the key member 530 is attached or removed. The control unit 510 allows the liquid consuming device 500H to be driven when the key member 530 is attached to the liquid consuming device 500H. On the other hand, the control unit 510 prohibits the driving of the liquid consuming device 500H when the key member 530 is removed from the liquid consuming device 500H.

The connecting portion 135 of the eighth embodiment is composed of a connecting bar 136 and a bar support portion 137. The connecting bar 136 of the eighth embodiment has a length smaller than the width in the X direction of the arrangement region of the liquid storage container 10G in the liquid consuming device 500. The connecting bar 136 may be configured as a rod-shaped member as shown. The connecting bar 136 may be configured as a plate-shaped member like the connecting bar 131 of the seventh embodiment instead of a rod shape.

The bar support portion 137 of the eighth embodiment is provided so as to project downward from the fourth wall portion 24 in the first portion 15 of the liquid storage container 10H. The bar support portion 137 is provided with a through hole 138 that penetrates in the X direction. The through hole 138 has a diameter into which the connecting bar 136 can be inserted. Further, the opening end of the through hole 138 has an opening shape that can accept the insertion of a part of the key member 530.

In the liquid consuming device 500H of the eighth embodiment, similarly to the liquid consuming device 500 of the first embodiment, a plurality of liquid storage containers 10H are mounted in parallel in a state of being arranged in the X direction intersecting the insertion direction (similar to the liquid consuming device 500 of the first embodiment). FIG. 35). The connecting bar 136 is inserted by the user into the through hole 138 of the bar support portion 137 of each liquid storage container 10H in a state where all the liquid storage containers 10H are mounted on the liquid consumption device 500H . As a result, in the liquid consuming device 500H, the liquid storage containers 10H in the mounted state are connected to each other. In this connected state, the entire connecting bar 136 is housed in the through hole 138 of the bar support portion 137.

When the connecting state of the liquid storage container 10H is released by the connecting portion 135 , the user uses the key member 530 (FIG. 36). The user pulls out the key member 530 attached to the key member mounting portion 531 and inserts a part of the key member 530 into the through hole 138 of the bar support portion 137, and the key member 530 partially inserts the connecting bar 136. Protrude from the side opposite to the inserted side. As a result, the user can pull out the connecting bar 136 from the through hole 138 of the bar support portion 137 and release the connecting state of the liquid storage container 10H.

The liquid consuming device 500H has another key member 535 and another key member having the same function as the key member 530 and the key member mounting portion 531 or together with the key member 530 and the key member mounting portion 531. It may have a mounting portion 536. As illustrated in FIG. 35 , the key member mounting portion 536 may be provided above the container insertion slot 521 and on the + X direction side. The key member 536 has a key detection unit that detects attachment / detachment of the corresponding key member 535 (not shown). Further, the key member 535 is configured so as to be able to be used for releasing the connected state of the liquid storage container 10H, similarly to the key member 530. In the case where the liquid consuming device 500H has two key members 530, 535, the control unit 510 is used when at least one of the key members 530, 535 is removed from the key member mounting portions 531, 536. , Driving of the liquid consuming device 500H is prohibited.

As described above, according to the liquid storage container 10H of the eighth embodiment, the connected state by the connecting portion 135 is released by the key members 530 and 536 removed from the liquid consuming device 500H. Therefore, when the user tries to release the connected state by the connecting unit 135, the control unit 510 prohibits the driving of the liquid consuming device 500H. Therefore, it is possible to prevent the liquid consumption device 500H from being accidentally driven when the liquid storage container 10H is removed from the liquid consumption device 500H. In addition, according to the liquid storage container 10H of the eighth embodiment, various functions and effects similar to those of the liquid storage container 10G of the seventh embodiment and the liquid storage container 10A of the first embodiment can be obtained.

I. Other embodiments:
The various configurations described in each of the above embodiments can be modified, for example, as follows. All of the other embodiments described below are positioned as examples of embodiments for carrying out the invention, as in the above-described embodiments.

I1. Other embodiments with respect to the filter:
(1) In the liquid storage containers 10A to 10H of each of the above embodiments, the filters 72 and 72C may not be arranged in the filter chamber 71. The filters 72 and 72C may be arranged in the outlet flow path 78, for example.

(2) In the liquid storage containers 10A to 10H of each of the above embodiments, the outer peripheral shapes of the filters 72 and 72C do not have to be substantially parallelograms when viewed along the thickness direction, and are, for example, trapezoidal. There may be. Further, the filters 72 and 72C do not have to be composed of a film-like member having pores. The filters 72 and 72C may be composed of, for example, a cylindrical or rectangular porous member.

(3) In the liquid storage containers 10A to 10H of each of the above embodiments, the filters 72 and 72C may not be installed so that the liquid passes through the inside of the filters 72 and 72C in the direction opposite to the direction of gravity. The filters 72 and 72C may be installed so that the liquid passes horizontally inside the filters 72 and 72C, for example. The filters 72 and 72C may be installed in the filter chamber 71 so as to be inclined with respect to the horizontal direction in the mounted state. As a result, foreign matter and air bubbles removed by the filters 72 and 72C can be guided and collected along the inclined surface of the filters 72 and 72C.

(4) In the liquid storage containers 10A to 10H of each of the above embodiments, the filter chamber 71 may not be provided below the storage chamber 31. The filter chamber 71 may be provided at a position above the bottom surfaces 31b and 31B of the accommodation chamber 31. For example, the filter chamber 71 may be provided inside the sixth wall portion 26. Either one of the first communication port 76a and the second communication port 76b communicating with the filter chamber 71 may be omitted.

(5) In the liquid storage containers 10A to 10H of each of the above embodiments, the bottom surface of the filter chamber 71 may be provided with ribs or uneven structures for suppressing the arrival of foreign matter on the filter 72. In the liquid storage containers 10A to 10H of each of the above embodiments, a sensor unit for detecting a shortage of the liquid amount in the storage chamber 31 may be provided downstream of the filter chamber 71. The sensor unit may be configured by a valve body that is displaced and opened / closed according to the amount of liquid in the storage chamber 31.

I2. Other embodiments relating to the visual recognition part:
(1) In the liquid storage containers 10A to 10H of each of the above embodiments, only one inner scale 39i may be provided. The inner scale 39i may be provided with only the lower limit scale 39L, or may be provided with only the upper limit scale indicating the upper limit of the amount of liquid contained in the storage chamber 31.

(2) In the liquid storage containers 10A to 10H of each of the above embodiments, the inner scale 39i may not be provided as a rib at the corner between the sixth wall portion 26 and the second wall portion 22. The inner scale 39i may be provided so as to be connected to at least one of the sixth wall portion 26 and the second wall portion 22. The ribs constituting the inner scale 39i do not have to have a substantially triangular shape, and may have other shapes. The ribs constituting the inner scale 39i may have a substantially quadrangular shape. The inner scale 39i may be composed of convex portions and concave portions of the inner wall surface 24i of the second wall portion 22, a seal attached to the inner wall surface 24i, ink attached to the inner wall surface 24i, and the like.

(3) In the liquid storage containers 10A to 10H of each of the above embodiments, the inner scale 39i may be configured as a rib that inclines downward toward at least one of the −X direction and the −Y direction. As a result, the liquid on the upper surface of the rib can be guided to the bottom surface 31b of the storage chamber 31 by gravity, so that the liquid does not remain on the upper surface.

(4) In the liquid storage containers 10A to 10H of each of the above embodiments, the outer scale 39o is attached to the recess of the outer wall surface 22o of the second wall portion 22, the seal attached to the outer wall surface 22o, and the outer wall surface 22o. It may be composed of ink or the like. When the outer scale 39o is configured as a concave portion of the outer wall surface 22o, the liquid adhering to the outer wall surface 22o and flowing downward is received as in the case where the outer scale 39o is configured as a convex portion of the outer wall surface 22o. be able to. Therefore, it is possible to prevent the liquid from reaching the handle portion 40. The outer scale 39o may be provided on the container lid member 62. The outer scale 39o may include an upper limit scale.

(5) In the liquid storage containers 10A to 10H of each of the above embodiments, the scale 39 does not have to have a linear shape extending along the X direction. The scale 39 may be composed of, for example, substantially hemispherical irregularities, circular shapes, triangular shapes, and other shapes.

I3. Other embodiments with respect to the air introduction:
(1) In the above liquid storage containers 10A to 10H, the atmosphere introduction unit 110 may not be provided above the storage chamber 31. The atmosphere introduction portion 110 may be provided inside the sixth wall portion 26, for example, at a central position in the Z direction of the accommodation chamber 31. The containment chamber air port 111 may not be provided at the central portion in the longitudinal direction of the containment chamber 31. The accommodation chamber atmosphere port 111 may be provided, for example, at a position closer to the second wall portion 22 than the first wall portion 21.

(2) In the above liquid storage containers 10A to 10H, the storage chamber air port 111 may be provided at a position closer to the passage partition wall 116 than the end on the + Y direction side of the first air passage portion 121. The container air passage 112 may be connected to the second air passage 122 at a position closer to the passage partition wall 116 than the end of the second air passage 122 on the −Y direction side.

(3) In the above liquid storage containers 10A to 10H, the passage partition wall 116 of the atmosphere introduction unit 110 may be omitted. The air communication portion 117 may not be provided at the upper end of the passage partition wall 116. The atmospheric communication unit 117 may be provided in the center of the passage partition wall 116, for example.

I4. Other embodiments relating to the handle:
In the liquid storage containers 10A to 10H of each of the above embodiments, the handle portion 40 may not be provided as a recess in the bottom wall surface 24s of the fourth wall portion 24. As for the handle portion 40, the handle portion 40 may be provided, for example, as a convex portion on which a user can easily put a finger. The handle 40 may be configured as a handle attached to the container body 11. The handle may be configured to be storable inside the container body 11. The handle portion 40 may be provided, for example, as a portion of the bottom wall surface 24s having a higher coefficient of friction than other portions so that the user's hand does not slip easily. The handle portion 40 may be configured by installing a plate-shaped rubber member installed on the bottom wall surface 24s. The handle portion 40 may be provided as a region where the bottom wall surface 24s is textured. The handle portion 40 may be provided, for example, as a portion of the bottom wall surface 24s that is softer than other portions and that provides a good tactile sensation. A structure for allowing the user to recognize the position of the handle portion 40 by tactile sensation may be provided around the handle portion 40. The structure may be composed of, for example, a convex portion or a concave portion surrounding the circumference of the handle portion 40, or a convex portion or a concave portion provided on a part of the periphery of the handle portion 40. In addition, by providing the structure, it is also possible to prevent the liquid from being transmitted to the handle portion 40.

I5. Other embodiments with respect to the rail section:
(1) In the liquid storage containers 10A to 10H of each of the above embodiments, at least one of the rail portions 41 and 42 may be omitted. The rail portions 41 and 42 may be divided into a plurality of rail portions 41 and 42 in the Y direction.

(2) In the liquid storage containers 10A to 10H of each of the above embodiments, the rail portions 41 and 42 may not be provided at the central portion in the X direction on the upper wall surface 23s and the bottom wall surface 24s. The rail portions 41 and 42 may be provided on the upper wall surface 23s and the bottom wall surface 24s at positions closer to the fifth wall portion 25 and the sixth wall portion 26.

(3) In the liquid storage containers 10A to 10H of each of the above embodiments, the container lid member 62 abuts on the rail portions 41 and 42 at a portion other than the end surface 67t of the peripheral wall portion 67 with respect to the opening housing member 60. Positioning may be performed. Even if the container lid member 62 abuts on the rail portions 41 and 42 by a convex portion extending in the X direction provided separately from the peripheral wall portion 67 and is positioned with respect to the opening housing member 60. good.

I6. Other embodiments with respect to the inner wall:
(1) In the liquid storage containers 10A to 10H of each of the above embodiments, the inner wall portions 65, 65D, 65a, 65b have an uneven structure on the surface thereof for controlling the flow of the liquid, and foreign substances contained in the liquid. An uneven structure for capturing the above may be provided.

(2) In the liquid storage containers 10A to 10H of each of the above embodiments, the inner wall portions 65, 65D, 65a, 65b are provided as flat plate-shaped wall portions. On the other hand, the shapes of the inner wall portions 65, 65D, 65a, 65b are not limited to the flat plate shape. The inner wall portions 65, 65D, 65a, 65b may be provided as a curved surface or a wall portion having a bent portion.

(3) In the liquid storage containers 10A to 10H of each of the above embodiments, the inner wall portions 65, 65D, 65a, 65b are provided so as to hang below the liquid inlet 35. On the other hand, the inner wall portions 65, 65D, 65a, 65b may be provided at positions separated from the liquid inlet 35 in the Y direction.

(4) In the liquid storage containers 10A to 10H of each of the above embodiments, the end convex portions 101 of the inner wall portions 65, 65D, 65a, 65b may be omitted. The end convex portion 101 may not protrude in the + Y direction side from the wall surface of the inner wall portion 65, or may protrude in the −Y direction side. The end convex portion 101 may protrude from the wall surface of the inner wall portion 65 on both the + Y direction side and the −Y direction side.

(5) The communication portion 102 at the upper end of the inner wall portions 65, 65D, 65a, 65b may be omitted, or the inner wall portions 65, 65D, 65a may be omitted at a portion other than the upper ends of the inner wall portions 65, 65D, 65a, 65b. , 65b may be provided as a through hole. The communication portion 102 may be configured as a slit-shaped gap between the upper ends of the inner wall portions 65, 65D, 65a, 65b and the upper surface 31u of the accommodation chamber 31.

(6) In the liquid storage containers 10A to 10H of each of the above embodiments, the inner wall portions 65, 65D, 65a, 65b may not be connected to the inner wall surface 26s of the sixth wall portion 26, or the film member 63. It does not have to be welded to. The inner wall portions 65, 65D, 65a, 65b may not be connected to the upper surface 31u of the accommodation chamber 31. The inner wall portions 65, 65D, 65a, 65b may be positioned away from the upper surface 31u of the accommodation chamber 31 and may be configured to hang down from the position on the upper surface 31u side in the Z direction toward the bottom surface 31b.

(7) In the liquid storage containers 10A to 10H of each of the above embodiments, a wall portion for controlling the flow of liquids other than the inner wall portions 65, 65D, 65a, 65b is provided inside the storage chamber 31. It's okay. In the liquid storage containers 10A to 10H of each of the above embodiments, the inner wall portions 65, 65D, 65a, 65b may be omitted.

I7. Other embodiments relating to the container body:
(1) In the liquid storage containers 10A to 10H of each of the above embodiments, the film member 63 welded to the opening housing member 60 may be omitted. In this case, for example, a sealing portion for ensuring the sealing property of the storage chamber 31 may be provided between the opening housing member 60 and the container lid member 62.

(2) In the liquid storage containers 10A to 10H of each of the above embodiments, the container body 11 may have a shape other than a substantially rectangular parallelepiped shape. For example, the container body 11 may have a shape in which the outer peripheral contour when viewed in the X direction has a substantially elliptical shape. The reinforcing wall portion 64 of the accommodation chamber 31 may be omitted. Further, the accommodation chamber 31 may be provided with a reinforcing rib having a structure different from that of the reinforcing wall portion 64.

I8. Other embodiments with respect to the lid member:
(1) In the liquid storage containers 10A to 10H of each of the above embodiments, the lid member 85 rotates about the rotation axis RX along the X direction. On the other hand, the lid member 85 may rotate about the rotation axis RX along the Y direction and the Z direction. The lid member 85 does not have to be rotatably connected to the container body 11. The lid member 85 may be connected to the container body 11 by a string-shaped member, or may be configured to be separated from the container body 11.

(2) In the liquid storage containers 10A to 10H of each of the above embodiments, the seal member 88 of the lid member 85, the outer surface convex portion 90, the sealing surface side concave portion 91, the protrusion 95, and the stopper portion that supports the lid member 85. 89 may be omitted. In the liquid storage containers 10A to 10H of each of the above embodiments, the lid member 85 may be omitted.

I9. Other embodiments with respect to the liquid consuming device:
(1) In each of the above embodiments, the liquid storage containers 10A to 10H may be inserted and mounted on the liquid consuming devices 500, 500H in a direction intersecting the gravity direction other than the −Y direction. .. The liquid storage containers 10A to 10H may be inserted in the + Y direction, the ± X direction, or the diagonal direction with respect to the horizontal plane, for example, with respect to the liquid consuming devices 500, 500H.

(2) In each of the above embodiments, the liquid storage containers 10A to 10H may be mounted in parallel with the liquid consuming devices 500 and 500H in a state of being arranged in a direction intersecting the insertion direction other than the X direction. good. The liquid storage containers 10A to 10H may be mounted on the liquid consumption device 500, 500H in a state of being arranged in the Z direction, for example.

(3) In each of the embodiments other than the seventh and eighth embodiments described above, the liquid consumption device 500 may not be configured so that a plurality of liquid storage containers 10A to 10F can be mounted. The liquid consuming device 500 may be configured so that only a single liquid storage container 10A to 10F can be mounted, for example.

(4) A plurality of liquid storage containers 10A to 10H having the same configuration are mounted on the liquid consumption devices 500 and 500H of each of the above embodiments. On the other hand, the liquid consumption devices 500 and 500H may be equipped with liquid storage containers 10A to 10H and liquid storage containers having different configurations. For example, the liquid consuming devices 500 and 500H do not have the liquid inlet 35 together with the liquid storage containers 10A to 10H having the liquid inlet 35, and the liquid storage container of the type that uses up the liquid stored from the unused state. May be attached.

(5) The configurations of the liquid storage containers 10A to 10H of each of the above embodiments may be applied to a liquid storage container mounted on a liquid consumption device other than an inkjet printer. For example, it may be applied to a liquid container attached to a cleaning device that consumes liquid detergent.

I10. others:
(1) In the liquid storage containers 10A to 10H of each of the above embodiments, of the three recesses 55a, 55b, 55c of the first wall portion 21, the second recess 55b is positioned by inserting the rod 525. (Fig. 17). In the liquid storage containers 10A to 10H of each of the above embodiments, at least one of the first recess 55a and the third recess 55c of the first wall portion 21 has a protrusion similar to the rod 525, like the second recess 55b. It may function as a positioning unit to be inserted. Further, the second recess 55b may not have a function as a positioning portion, and the rod 525 may not be inserted.

(2) In the liquid storage containers 10A to 10H of each of the above embodiments, the visual recognition portion 38, the handle portion 40, the rail portions 41, 42, the peripheral wall portions 67, 68, and the atmosphere introduction portion 110 may be omitted. In the liquid storage containers 10A to 10H of each of the above embodiments, the electrical connection portion 50, the recesses 55 and 58, the liquid receiving portion 80, the convex wall portion 82, the first support recess 82r, and the second support recess 98 are omitted. May be good.

The present invention is not limited to the above-described embodiment, other embodiments, examples, and modifications, and can be realized with various configurations within a range not deviating from the gist thereof. For example, the embodiments corresponding to the technical features in each embodiment described in the column of the outline of the invention, the technical features in other embodiments, examples, and modifications solve some or all of the above-mentioned problems. Or, in order to achieve some or all of the above-mentioned effects, it is possible to replace or combine them as appropriate. In addition, the technical features are not limited to those described in the present specification as not essential, and if the technical features are not described as essential in the present specification, they may be appropriately deleted. Is possible.

10A ... Liquid storage container, 10B ... Liquid storage container, 10C ... Liquid storage container, 10D ... Liquid storage container, 10E ... Liquid storage container, 10F ... Liquid storage container, 10G ... Liquid storage container, 10H ... Liquid storage container, 11 ... Container body, 12 ... 1st end, 13 ... 2nd end, 15 ... 1st part, 16 ... 2nd part, 21 ... 1st wall, 22 ... 2nd wall, 22i ... Inner wall surface, 22o ... Outer wall surface, 23 ... 3rd wall part, 23s ... upper wall surface, 24 ... 4th wall part, 24i ... inner wall surface, 24s ... bottom wall surface, 25 ... 5th wall part, 26 ... 6th wall part, 26s ... inner wall surface , 31 ... Container, 31b ... Bottom, 31bB ... Bottom, 31s ... Step, 31u ... Top, 33 ... Liquid outlet, 33p ... Pipe, 34 ... Outlet storage recess, 35 ... Liquid inlet, 36 ... Entrance peripheral wall, 36s ... upper end surface, 38 ... visual recognition part, 39 ... scale, 39L ... lower limit scale, 39i ... inner scale, 39o ... outer scale, 40 ... handle part, 41 ... first rail part, 42 ... second rail part, 50 ... Electrical connection, 51 ... recess, 51s ... inclined surface, 52 ... substrate surface, 53 ... electrode plate, 54 ... electric circuit section, 55 ... recess, 55a ... first recess, 55b ... second recess, 55c ... third Recessed portion, 56 ... Bottom, 60 ... Opened housing member, 60B ... Opened housing member, 60w ... Wall portion, 61a ... First recessed portion (containment chamber recess), 61b ... Second recessed portion, 61c ... Third recessed portion, 62 ... Container lid member, 63 ... film member, 64 ... reinforcing wall part, 65 ... inner wall part, 65D ... inner wall part, 65a ... first inner wall part, 65b ... second inner wall part, 65e ... lower end, 66 ... main body wall part, 66e ... outer peripheral end, 67 ... first peripheral wall, 67e ... end, 67f ... filter chamber wall, 67t ... end face, 68 ... second peripheral wall, 68e ... upper end, 70 ... flow path, 71 ... filter chamber, 71d ... downstream space, 71u ... upstream space, 72 ... filter, 72C ... filter, 73 ... rib, 74 ... film member, 75 ... filter support wall, 76a ... first communication port, 76b ... first 2 communication ports, 78 ... outlet flow path, 79 ... reinforcing ribs, 80 ... liquid receiving part, 81 ... liquid receiving part partition wall, 82 ... convex wall part, 82r ... first support recess, 85 ... lid member, 86 ... connecting Part, 87o ... outer surface, 87s ... sealing surface, 88 ... sealing member, 89 ... stopper part, 89s ... inclined surface, 90 ... outer surface convex part, 91 ... sealing surface side concave part, 93 ... locking part, 93c ... claw Part, 94 ... Locked part, 95 ... Protrusion part, 96 ... Groove part, 96t ... Bottom part, 98 ... Second support concave part, 101 ... End convex part, 102 ... Communication part, 110 ... Atmospheric introduction part, 111 ... Room atmosphere port, 112 ... Container atmosphere Mouth, 113 ... Atmospheric passage, 115 ... Through flow path, 116 ... Passage partition wall, 117 ... Atmospheric communication part, 118 ... Inclined wall surface, 121 ... First air passage part, 122 ... Second air passage part, 123 ... Passage rib , 125 ... Connector unit, 126 ... Engagement part, 130 ... Connecting part, 131 ... Connecting bar, 132 ... Bar support part, 132a ... Base end part, 132b ... Tip part, 135 ... Connecting part, 136 ... Connecting bar, 137 ... bar support, 138 ... through hole, 500 ... liquid consuming device, 500H ... liquid consuming device, 501 ... device body, 502 ... leg, 503 ... wheel 510 ... control unit, 511 ... head, 512 ... carriage, 513 ... Tube, 515 ... Insert port, 516 ... Medium storage unit, 517 ... Discharge port, 518 ... Operation unit, 518b ... Operation button, 518i ... Display unit, 520 ... Liquid supply unit, 521 ... Container insertion port, 522 ... Guide Groove 523 ... Liquid supply pipe 524 ... Suction pump 525 ... Rod 526 ... Device side terminal 527 ... Connection terminal 528 ... Identification member 530 ... Key member 513 ... Key member mounting part 532 ... Key detection Part, 535 ... Another key member, 536 ... Another key member mounting part, 600 ... Liquid injection tool, 601 ... Bag-shaped member, 602 ... Spout, 603 ... Overhanging part, A1, A2 ... Area, CA ... Contact Region, CX ... central axis, HX ... axis, PA ... passage area, PX ... axis, RX ... rotation axis, c1 ... first corner, c2 ... second corner, c3 ... third corner, c4 ... 4th corner, f1 ... 1st filter layer, f2 ... 2nd filter layer, s1 ... 1st side, s2 ... 2nd side

Claims (6)

A liquid storage container that stores the liquid supplied to the liquid consuming device that consumes the liquid, and is inserted and mounted in the insertion direction intersecting the gravity direction with respect to the liquid consuming device.
A storage chamber having a shape in which the insertion direction is the longitudinal direction, having a first end portion on the insertion direction side and a second end portion on the opposite side to the insertion direction, and accommodating the liquid. The container body provided inside and
In the insertion direction, the liquid is provided on the first end side of the container body, and is connected to the liquid consuming device in a mounted state in which the liquid containing container is attached to the liquid consuming device, and the liquid in the containing chamber is connected to the liquid consuming device. With a liquid outlet that allows the liquid to flow out to the liquid consuming device,
A liquid inlet provided on the second end side of the container body in the insertion direction, communicating with the storage chamber, and receiving the injection of the liquid into the storage chamber from the outside of the container body.
A filter provided between the storage chamber and the liquid outlet to remove foreign substances contained in the liquid,
Equipped with
The filter is provided at a position closer to the liquid outlet than the liquid inlet in the insertion direction .
It has a filter chamber in which the filter is arranged and separated by the filter into an upstream space connected to the containment chamber and a downstream space connected to the liquid outlet.
In the mounted state, the filter chamber is located below the accommodation chamber.
In the mounted state, the upstream space is a liquid storage container located below the filter . A liquid storage container that stores the liquid supplied to the liquid consuming device that consumes the liquid, and is inserted and mounted in the insertion direction intersecting the gravity direction with respect to the liquid consuming device.
A storage chamber having a shape in which the insertion direction is the longitudinal direction, having a first end portion on the insertion direction side and a second end portion on the opposite side to the insertion direction, and accommodating the liquid. The container body provided inside and
In the insertion direction, the liquid is provided on the first end side of the container body, and is connected to the liquid consuming device in a mounted state in which the liquid containing container is attached to the liquid consuming device, and the liquid in the containing chamber is connected to the liquid consuming device. With a liquid outlet that allows the liquid to flow out to the liquid consuming device,
A liquid inlet provided on the second end side of the container body in the insertion direction, communicating with the storage chamber, and receiving the injection of the liquid into the storage chamber from the outside of the container body.
A filter provided between the storage chamber and the liquid outlet to remove foreign substances contained in the liquid,
Equipped with
The filter is provided at a position closer to the liquid outlet than the liquid inlet in the insertion direction.
It has a filter chamber in which the filter is arranged and separated by the filter into an upstream space connected to the containment chamber and a downstream space connected to the liquid outlet.
In the mounted state, the filter chamber is located below the accommodation chamber.
A first communication port and a second communication port communicating with the filter room are provided on the bottom surface of the storage chamber.
The first communication port is provided at a position closer to the liquid inlet than the filter in the insertion direction.
The second communication port is a liquid storage container provided at a position opposite to the first communication port across the filter in the insertion direction. A liquid storage container that stores the liquid supplied to the liquid consuming device that consumes the liquid, and is inserted and mounted in the insertion direction intersecting the gravity direction with respect to the liquid consuming device.
A storage chamber having a shape in which the insertion direction is the longitudinal direction, having a first end portion on the insertion direction side and a second end portion on the opposite side to the insertion direction, and accommodating the liquid. The container body provided inside and
In the insertion direction, the liquid is provided on the first end side of the container body, and is connected to the liquid consuming device in a mounted state in which the liquid containing container is attached to the liquid consuming device, and the liquid in the containing chamber is connected to the liquid consuming device. With a liquid outlet that allows the liquid to flow out to the liquid consuming device,
A liquid inlet provided on the second end side of the container body in the insertion direction, communicating with the storage chamber, and receiving the injection of the liquid into the storage chamber from the outside of the container body.
A filter provided between the storage chamber and the liquid outlet to remove foreign substances contained in the liquid,
Equipped with
The filter is provided at a position closer to the liquid outlet than the liquid inlet in the insertion direction.
It has a filter chamber in which the filter is arranged and separated by the filter into an upstream space connected to the containment chamber and a downstream space connected to the liquid outlet.
In the mounted state, the filter chamber is located below the accommodation chamber.
The filter is composed of a film-like member that allows the liquid to pass in the thickness direction.
When viewed along the thickness direction, the filter is provided at the first pair of corners at both ends of the side located on the insertion direction side and at both ends of the side located on the opposite side of the insertion direction. It has a second pair of corners, and
One corner of the first pair of corners is located closer to the insertion direction than the other corner.
One corner of the second pair of corners is located on the opposite side of the other corner from the insertion direction.
A liquid storage container in which the outer peripheral shape of the passage region through which the liquid passes in the plane of the filter is a shape along the outer peripheral shape of the filter. A liquid storage container that stores the liquid supplied to the liquid consuming device that consumes the liquid, and is inserted and mounted in the insertion direction intersecting the gravity direction with respect to the liquid consuming device.
A storage chamber having a shape in which the insertion direction is the longitudinal direction, having a first end portion on the insertion direction side and a second end portion on the opposite side to the insertion direction, and accommodating the liquid. The container body provided inside and
In the insertion direction, the liquid is provided on the first end side of the container body, and is connected to the liquid consuming device in a mounted state in which the liquid containing container is attached to the liquid consuming device, and the liquid in the containing chamber is connected to the liquid consuming device. With a liquid outlet that allows the liquid to flow out to the liquid consuming device,
A liquid inlet provided on the second end side of the container body in the insertion direction, communicating with the storage chamber, and receiving the injection of the liquid into the storage chamber from the outside of the container body.
A filter provided between the storage chamber and the liquid outlet to remove foreign substances contained in the liquid,
Equipped with
The filter is provided at a position closer to the liquid outlet than the liquid inlet in the insertion direction.
It has a filter chamber in which the filter is arranged and separated by the filter into an upstream space connected to the containment chamber and a downstream space connected to the liquid outlet.
In the mounted state, the filter chamber is located below the accommodation chamber.
In the mounted state, the bottom surface of the storage chamber is inclined downward toward the filter chamber so that the filter chamber side is located below the liquid inlet side in the insertion direction. A liquid storage container that stores the liquid supplied to the liquid consuming device that consumes the liquid, and is inserted and mounted in the insertion direction intersecting the gravity direction with respect to the liquid consuming device.
A storage chamber having a shape in which the insertion direction is the longitudinal direction, having a first end portion on the insertion direction side and a second end portion on the opposite side to the insertion direction, and accommodating the liquid. The container body provided inside and
In the insertion direction, the liquid is provided on the first end side of the container body, and is connected to the liquid consuming device in a mounted state in which the liquid containing container is attached to the liquid consuming device, and the liquid in the containing chamber is connected to the liquid consuming device. With a liquid outlet that allows the liquid to flow out to the liquid consuming device,
A liquid inlet provided on the second end side of the container body in the insertion direction, communicating with the storage chamber, and receiving the injection of the liquid into the storage chamber from the outside of the container body.
A filter provided between the storage chamber and the liquid outlet to remove foreign substances contained in the liquid,
Equipped with
The filter is provided at a position closer to the liquid outlet than the liquid inlet in the insertion direction.
It has a filter chamber in which the filter is arranged and separated by the filter into an upstream space connected to the containment chamber and a downstream space connected to the liquid outlet.
In the mounted state, the filter chamber is located below the accommodation chamber.
The filter is a liquid storage container having a multilayer structure in which two or more members having different grain roughness of pores through which the liquid passes are laminated. A liquid storage container that stores the liquid supplied to the liquid consuming device that consumes the liquid, and is inserted and mounted in the insertion direction intersecting the gravity direction with respect to the liquid consuming device.
A storage chamber having a shape in which the insertion direction is the longitudinal direction, having a first end portion on the insertion direction side and a second end portion on the opposite side to the insertion direction, and accommodating the liquid. The container body provided inside and
In the insertion direction, the liquid is provided on the first end side of the container body, and is connected to the liquid consuming device in a mounted state in which the liquid containing container is attached to the liquid consuming device, and the liquid in the containing chamber is connected to the liquid consuming device. With a liquid outlet that allows the liquid to flow out to the liquid consuming device,
A liquid inlet provided on the second end side of the container body in the insertion direction, communicating with the storage chamber, and receiving the injection of the liquid into the storage chamber from the outside of the container body.
A filter provided between the storage chamber and the liquid outlet to remove foreign substances contained in the liquid,
Equipped with
The filter is provided at a position closer to the liquid outlet than the liquid inlet in the insertion direction.
In the storage chamber, an inner wall portion that hangs down from the upper surface side of the storage chamber toward the bottom surface and whose lower end is located between the upper surface and the bottom surface of the storage chamber is a liquid inlet in the insertion direction. A liquid storage container provided between the filter and the filter.

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