WO2022181466A1

WO2022181466A1 - Printing liquid container

Info

Publication number: WO2022181466A1
Application number: PCT/JP2022/006567
Authority: WO
Inventors: 雅洋林; 聡大木; 七海芦田; 真也岡崎
Original assignee: ブラザー工業株式会社
Priority date: 2021-02-26
Filing date: 2022-02-18
Publication date: 2022-09-01
Also published as: JP2022131358A; JP7487688B2

Abstract

The present invention provides a means for opening and closing a liquid supply port and an air communication path with a simple structure. A bottle 100 includes a nozzle member 101 having a supply port 113, a valve body 102 having a rod 122 that opens or closes the supply port 113, and a casing 103. The nozzle member 101, the valve body 102, and the casing 103 are coupled so as to be relatively movable into a first state or a second state. The inner space of the nozzle member 101 and the inner space of the valve body 102 constitute a reservoir 104 for storing ink. The rod 122 closes the supply port 113 in the first state and opens the supply port 113 in the second state. Grooves 132 via which the reservoir 104 is open to the outside are closed in the first state and are open in the second state.

Description

printing liquid container

The present invention relates to a printing liquid container in which liquid is stored.

In conventional printing apparatuses, a configuration is known in which ink is supplied from a container connected to the tank to the tank each time the ink stored in the tank is consumed. The container has a supply port for supplying ink. In order to prevent the ink from leaking out from the supply port, for example, it is possible to use a supply valve provided in the ink cartridge described in Japanese Unexamined Patent Application Publication No. 2002-200012. In addition, the container preferably has an atmosphere communicating passage so that the ink can smoothly flow out from the supply port of the container. It is conceivable to use the atmosphere release valve described in Cited Document 1 for opening and closing the atmosphere communication passage.

JP 2013-49167 A

The supply valve and the atmosphere communication valve described in Patent Document 1 are each biased by a spring to close the supply port and the atmosphere communication passage. However, when a valve having such a structure is provided in a container, there is a risk that the size of the container will increase, or that the structure of the container will become complicated, resulting in an increase in cost.

The present invention has been made in view of the circumstances described above, and its object is to provide a means for opening and closing a supply port for supplying liquid and an air communication passage with a simple configuration.

(1) A printing liquid container according to the present invention has a first member having a supply port that communicates with an internal space, a valve that opens or closes the supply port, and an atmospheric communication path that communicates the internal space with the outside. and a second member. The first member and the second member are connected so as to be relatively movable between a first state and a second state. The internal space of the first member and the internal space of the second member are storage chambers that store liquid. The valve closes the supply port in the first state and opens the supply port in the second state. The atmospheric communication passage is closed in the first state and opened in the second state.

By moving the second member relative to the first member, the supply port and the air communication passage are opened or closed.

(2) Preferably, the second member has a moving member having the valve, and a support member slidably supporting the moving member. The first member and the support member are connected so as to be relatively rotatable. The moving member receives the rotation of the support member and slides in the axial direction along the rotation center with respect to the first member. The air communication passage is closed or opened by sliding the moving member.

By rotating the support member, the supply port and the air communication passage are opened or closed.

(3) Preferably, the first member has a first groove extending spirally along the axial direction, or a first protrusion projecting in a direction intersecting the axial direction. The moving member has a second protrusion that engages with the first groove, or a second groove that extends spirally along the axial direction and engages with the first protrusion. The moving member has a third groove or a third projection extending along the axial direction. The support member has a fourth projection or groove that engages with the third groove.

(4) Preferably, the support member has a cylindrical shape, and at least a portion of the first member and the moving member are positioned in the inner space thereof.

Since the first member rotates and the moving member slides in the internal space of the support member, the operability of the support member is good.

(5) Preferably, in the first state and the second state, the moving member is located in the internal space of the supporting member.

During the relative rotation between the first state and the second state, the moving member does not protrude from the internal space of the supporting member, so that the supporting member is easy to operate.

(6) Preferably, the atmospheric communication passage is defined by the moving member and the supporting member.

(7) Preferably, the printing liquid container supplies the liquid through an inlet to a tank of the printing apparatus. The first member has an engaging portion that engages with a peripheral portion of the inlet of the tank. In a state in which the engaging portion is engaged with the peripheral portion, the supply port and the injection port are in fluid communication, and the first member can rotate with respect to the peripheral portion. be restrained.

With the first member engaged with the periphery of the filling port of the tank, the second member is rotated to open or close the supply port and the air communication passage.

(8) Preferably, in the process of changing the state from the first state to the second state, the atmospheric communication passage is opened after the valve opens the supply port.

Even if the pressure outside is extremely low compared to the pressure inside the storage chamber, the ejection of the printing liquid from the air communication passage is suppressed.

According to the present invention, the supply port for supplying the liquid and the air communication passage can be opened and closed with a simple configuration.

FIG. 1 is an external perspective view of a multi-function device 10. FIG. FIG. 2 is a longitudinal sectional view schematically showing the internal structure of the printer section 11. As shown in FIG. 3 is an external perspective view of the tank 80. FIG. FIG. 4 is a sectional view showing a section along the vertical direction 7 including the axis 83A of the tank 80. As shown in FIG. FIG. 5 is an external perspective view of the bottle 100. FIG. 6A is a perspective view showing the nozzle material 101 and the valve body 102 in the first state, and FIG. 6B is a perspective view showing the nozzle material 101 and the valve body 102 in the second state. 7(A) is a cross-sectional view showing a cross section along the vertical direction 7 including the axis 100A of the bottle 100 in the first state, and FIG. 7(B) includes the axis 100A of the bottle 100 in the second state. 7 is a cross-sectional view showing a cross section along the vertical direction 7; FIG. FIG. 8 is a cross-sectional view showing the bottle 100 in the first state inserted into the recess 84 of the tank 80. As shown in FIG. FIG. 9 is a cross-sectional view showing the bottle 100 in the second state inserted into the recess 84 of the tank 80. As shown in FIG. FIG. 10 is an external perspective view of the bottle 150. FIG. FIG. 11A is a perspective view showing the valve body 152, the cam member 153, and the coil spring 154 in the first state, and FIG. 153, and a perspective view showing a coil spring 154. FIG. 12A is a perspective view showing the valve body 152 and the coil spring 154 in the first state, and FIG. 12B is a perspective view showing the valve body 152 and the coil spring 154 in the first state in the second state. be. 13(A) is a perspective view showing the cam member 153, and FIGS. 13(B) and 13(C) are perspective views showing longitudinal sections of the cam member 153. FIG. 14(A) is a perspective view showing a cross section along the vertical direction 7 including the axis 150A of the bottle 150 in the first state, and FIG. 14(B) includes the axis 150A of the bottle 150 in the second state. 7 is a cross-sectional view showing a cross section along the vertical direction 7; FIG. FIG. 15 is a perspective view showing a nozzle material 101 having a male threaded portion 141 and a valve body 102 having a female threaded portion 142. FIG.

Embodiments of the present invention will be described below. It should be noted that the embodiment described below is merely an example of the present invention, and it goes without saying that the embodiment of the present invention can be changed as appropriate without changing the gist of the present invention. Further, in the following description, progress from the starting point to the end point of the arrow is expressed as direction, and movement on the line connecting the starting point and the end point of the arrow is expressed as direction. In other words, orientation is a component of direction. Further, the vertical direction 7 is defined with reference to the attitude in which the multifunction machine 10 is installed on a horizontal plane so that it can be used (this is the attitude shown in FIG. 1 and may be referred to as the "usage attitude"). A front-rear direction 8 is defined with the surface on which the opening 13 is provided as the front surface, and a left-right direction 9 is defined when the multifunction device 10 is viewed from the front surface. In this embodiment, in the usage posture, the up-down direction 7 corresponds to the vertical direction, the front-rear direction 8 and the left-right direction 9 correspond to the horizontal direction, and the front-rear direction 8 and the left-right direction 9 are orthogonal to each other.

[Overall Structure of MFP 10]
As shown in FIG. 1, the multifunction device 10 has a generally rectangular parallelepiped housing 14 . A printer unit 11 is provided in the lower part of the housing 14 . The MFP 10 has various functions such as a facsimile function and a print function. As a print function, the multi-function device 10 has a function of recording an image on one side of the paper 12 using an inkjet method. Note that the multifunction machine 10 may record images on both sides of the paper 12 . An operation unit 17 is provided on the top of the housing 14 . The operation unit 17 includes buttons operated for instructing image recording and various settings, a liquid crystal display for displaying various information, and the like. In this embodiment, the operation unit 17 is configured by a touch panel having both button and liquid crystal display functions.

As shown in FIG. 2, the printer unit 11 includes a feed tray 20, a feed unit 16, an outer guide member 18, an inner guide member 19, a conveying roller pair 59, a discharge roller pair 44, a platen 42, and a recording unit 24. I have. These are located inside the housing 14 . Further, inside the housing 14, various status sensors are positioned to detect the status of the MFP 10 and output signals according to the detection results. The configuration of the printer section 11 is an example, and the configuration of the printer section 11 may be replaced with another known configuration.

[Feed tray 20]
As shown in FIG. 1, an opening 13 is formed in the front surface 23 of the printer section 11 . By moving the feeding tray 20 in the front-rear direction 8 , the feeding tray 20 can be inserted into and removed from the housing 14 through the opening 13 . The feeding tray 20 is movable between a feeding position (the position shown in FIGS. 1 and 2) attached to the housing 14 and a non-feeding position extracted from the housing 14 . The feeding tray 20 moves to the feeding position by being inserted backward into the housing 14 and moves to the non-feeding position by being pulled forward from the housing 14 .

The feed tray 20 is a box-shaped member with an open top and accommodates the sheets 12 . As shown in FIG. 2, the sheets 12 are supported on the bottom plate 22 of the feed tray 20 while being stacked. A discharge tray 21 is positioned above the front portion of the feed tray 20 . The paper 12 on which an image is recorded by the recording unit 24 and is discharged is supported on the upper surface of the discharge tray 21 .

As shown in FIG. 2, the paper 12 supported by the feed tray 20 can be fed to the transport path 65 when the feed tray 20 is at the feed position.

[Feeding unit 16]
As shown in FIG. 2 , the feeding section 16 is positioned below the recording section 24 and above the bottom plate 22 of the feeding tray 20 . The feeding section 16 includes a feeding roller 25 , a feeding arm 26 , a drive transmission mechanism 27 and a shaft 28 . The feed roller 25 is rotatably supported by the tip of the feed arm 26 . The feeding arm 26 rotates in the direction of an arrow 29 around a shaft 28 provided at its proximal end. As a result, the feed roller 25 can contact and separate from the feed tray 20 or the paper 12 supported by the feed tray 20 .

The feeding roller 25 is rotated by a driving force of a motor transmitted by a drive transmission mechanism 27 formed by meshing a plurality of gears. As a result, of the sheets 12 supported by the bottom plate 22 of the feed tray 20 at the feed position, the uppermost sheet 12 in contact with the feed roller 25 is fed to the transport path 65 .

[Conveyance path 65]
As shown in FIG. 2 , a transport path 65 extends from the rear end of the feed tray 20 . The transport path 65 has a curved portion 33 and a straight portion 34 . The curved portion 33 extends upward while making a U-turn from the rear to the front. The linear portion 34 extends generally along the front-rear direction 8 .

The curved portion 33 is formed by an outer guide member 18 and an inner guide member 19 facing each other with a predetermined interval. The outer guide member 18 and the inner guide member 19 extend in the left-right direction 9 . The linear portion 34 is formed by the recording portion 24 and the platen 42 facing each other with a predetermined gap in the vertical direction 7 in the range where the recording portion 24 is positioned.

The paper 12 supported by the feed tray 20 is transported along the curved portion 33 by the feed roller 25 and reaches the transport roller pair 59 . The paper 12 nipped between the pair of conveying rollers 59 is conveyed forward with the linear portion 34 directed toward the recording portion 24 . An image is recorded on the sheet of paper 12 that has reached directly below the recording section 24 by the ink ejected from the recording section 24 adhering thereto. The paper 12 on which the image has been recorded is transported forward along the straight portion 34 and discharged to the discharge tray 21 . As described above, the paper 12 is transported along the transport direction 15 indicated by the dashed-dotted arrow in FIG.

[Conveyance Roller Pair 59 and Discharge Roller Pair 44]
As shown in FIG. 2 , the conveying roller pair 59 is positioned on the straight portion 34 . The discharge roller pair 44 is located downstream of the transport roller pair 59 in the straight portion 34 in the transport direction 15 .

The transport roller pair 59 includes a transport roller 60 and a pinch roller 61 located below the transport roller 60 . The pinch roller 61 is pressed against the conveying roller 60 by an elastic member (not shown) such as a coil spring. The transport roller pair 59 can pinch the paper 12 .

The discharge roller pair 44 includes a discharge roller 62 and a spur roller 63 positioned above the discharge roller 62 . The spur roller 63 is pressed toward the discharge roller 62 by an elastic member (not shown) such as a coil spring. The discharge roller pair 44 can pinch the paper 12 .

The conveying roller 60 and the discharge roller 62 are rotated by applying a driving force from a motor. When the transport rollers 60 rotate while the paper 12 is nipped by the transport roller pair 59 , the paper 12 is transported in the transport direction 15 by the transport roller pair 59 and transported onto the platen 42 .
When the discharge rollers 62 rotate while the paper 12 is sandwiched between the paper 12 and the paper 12 , the paper 12 is conveyed in the conveyance direction 15 by the paper 12 and discharged onto the paper discharge tray 21 .

[Platen 42]
As shown in FIG. 2 , the platen 42 is positioned on the straight portion 34 of the transport path 65 . The platen 42 faces the recording section 24 in the vertical direction 7 . The platen 42 supports the paper 12 conveyed along the conveying path 65 from below.

[Recording unit 24]
As shown in FIG. 2, the recording section 24 is positioned above the platen 42 . The recording section 24 includes a carriage 40 , a head 38 and a tank 80 .

The carriage 40 is supported by two

guide rails

56 and 57 spaced apart in the front-rear direction 8 so as to be movable along the left-right direction 9 perpendicular to the transport direction 15 . The guide rail 56 is located upstream of the head 38 in the transport direction 15 . The guide rail 57 is located downstream of the head 38 in the transport direction 15 . The guide rails 56 and 57 are supported by a pair of side frames (not shown) located outside the linear portion 34 of the transport path 65 in the left-right direction 9 . The carriage 40 moves by applying a driving force from a motor.

The head 38 is supported by the carriage 40 . A lower surface 68 of the head 38 is exposed downward and faces the platen 42 . The head 38 includes a plurality of nozzles 39, ink channels 37, and piezoelectric elements (not shown).

A plurality of nozzles 39 are opened in the lower surface 68 of the head 38 . The ink channel 37 connects the tank 80 and the plurality of nozzles 39 . The piezoelectric element is deformed by power supply, and by deforming in the ink flow path 37 , ink droplets are ejected downward from the nozzle 39 .

As shown in FIG. 2, the tank 80 is mounted on the carriage 40. As shown in FIGS. 2 and 4, tank 80 has an interior space 81 . Ink is stored in the internal space 81 . An internal space 81 of the tank 80 communicates with the plurality of nozzles 39 via the ink flow path 37 . As a result, ink is supplied from the internal space 81 to the nozzles 39 .

As shown in FIG. 2, the tank 80 is located above the head 38. In this embodiment, the entire tank 80 is located above the head 38, but the positional relationship between the tank 80 and the head 38 may be changed as appropriate. In this embodiment, the recording section 24 has one tank 80 . This one tank 80 stores black ink. In addition, the color of the ink stored in the tank 80 is not limited to black.

As shown in FIG. 4, the top wall 82 of the tank 80 is formed with a recess 84 recessed toward the internal space 81 . The recess 84 has a circular cross section into which the bottle 100 (see FIG. 5) can be inserted. An injection port 83 for injecting ink into the internal space 81 is provided at the lower end of the recess 84 . A plurality of recessed grooves 86 (an example of a peripheral portion) into which a bottle 100 (to be described later) is fitted are radially positioned within the recessed portion 84 and around the injection port 83 . Each groove 86 linearly extends outward from the inlet 83 .

Two projecting pieces 87 are positioned at the upper end of the concave portion 84 . The two protruding pieces 87 are positioned 180 degrees apart from each other about the axis 83A of the injection port 83. As shown in FIG. Each protruding piece 87 protrudes from the upper end of the recess 84 toward the axis 83A.

As shown in FIG. 2, the recess 84 is fitted with a lid 85 . When the lid 85 is removed, the injection port 83 is exposed to the outside. In this state, the bottle 100 is inserted into the recess 84 and ink is injected from the bottle 100 into the internal space 81 through the injection port 83 .

Although not shown in each figure, the tank 80 may be provided with an opening to the atmosphere. Also, the air release port may be openable and closable by an electromagnetic valve or the like.

[Bottle 100]
Hereinafter, the bottle 100 will be described with appropriate reference to FIGS. 5 to 8. FIG. A bottle 100 (an example of a printing liquid container) stores ink (an example of a printing liquid). Bottle 100 supplies ink to tank 80 through inlet 83 . As shown in FIGS. 5 and 6, the bottle 100 has a nozzle material 101, a valve body 102, and a housing 103. As shown in FIGS. The nozzle material 101 is an example of the first member. The valve body 102 is an example of a moving member. The housing 103 is an example of a support member.

As shown in FIG. 5, the outer shape of the bottle 100 is generally cylindrical elongated in the vertical direction 7 . 5 to 7, the bottle 100 is shown with the supply port 113 facing downward, but the bottle 100 may be oriented with the supply port 113 facing upward during transportation and storage. .

As shown in FIGS. 6 and 7, the nozzle material 101 is positioned inside the housing 103, and a part of the nozzle material 101 protrudes outward (downward in each figure). The nozzle material 101 has a nozzle portion 111 and an insertion portion 112 .

The outer shape of the nozzle portion 111 is generally cylindrical and tapers downward. A supply port 113 is opened in the lower end surface 111</b>L of the nozzle portion 111 . The supply port 113 has a circular shape and communicates the internal space of the nozzle portion 111 with the outside. A plurality of elongated engagement ribs 114 (an example of an engagement portion) extending along the vertical direction 7 are positioned on the outer peripheral surface 111</b>C of the nozzle portion 111 . A plurality of engaging ribs 114 are radially positioned around the supply port 113 . Each engagement rib 114 enters and engages with each groove 86 of the tank 80 . The number and arrangement of engagement ribs 114 match the number and arrangement of grooves 86 .

The insertion portion 112 extends upward from the upper end surface 111U of the nozzle portion 111 . The insert 112 is generally cylindrical. The outer diameter of the insertion portion 112 is smaller than the diameter of the upper end surface 111U. Therefore, the upper end face 111U is positioned around the lower end of the insertion portion 112. As shown in FIG. The axis of the nozzle portion 111 and the axis of the insertion portion 112 coincide with the axis 100A of the bottle 100 . The insertion portion 112 is inserted into the internal space of the valve body 102 . The internal space of the insertion portion 112 is continuous with the internal space of the nozzle portion 111 .

On the outer peripheral surface of the insertion portion 112, flat portions 115 are formed by partially notching the outer peripheral surface at three locations around the axis 100A. The flat portion 115 is a rectangle elongated in the vertical direction 7 . A convex portion 116 (an example of a first convex portion) that protrudes outward is positioned on the planar portion 115 . The convex portion 116 has a generally parallelogram-shaped outer shape when viewed along the radial direction of the insertion portion 112 . The convex portion 116 is fitted into the guide groove 124 of the valve body 102 .

As shown in FIGS. 6 and 7, the valve body 102 is located inside the housing 103. As shown in FIGS. The outer shape of the valve body 102 is generally cylindrical. The axis of the valve body 102 coincides with the axis 100A.

As shown in FIG. 7, the valve body 102 has a cylindrical tubular portion 121 and a rod 122 (an example of a valve) located inside the tubular portion 121 . The rod 122 has a columnar shape, and a lower end protrudes downward from the lower end of the tubular portion 121 . The dimension of the rod 122 along the vertical direction 7 is longer than the dimension of the nozzle material 101 along the vertical direction 7 . The outer shape of the lower end portion of the rod 122 matches the inner diameter of the supply port 113 of the nozzle portion 111 . As shown in FIG. 7A, the supply port 113 is closed by fitting the rod 122 into the supply port 113 .

As shown in FIGS. 7 and 8, the upper end of the rod 122 is connected to the cylindrical portion 121 by a plurality of connecting portions 123. As shown in FIGS. The plurality of connecting portions 123 are circumferentially spaced around the upper end of the rod 122 . A space in which ink can flow is provided between two adjacent connecting portions 123 . A plurality of connecting portions 123 connect the rod 122 and the tubular portion 121 such that the axis of the rod 122 coincides with the axis 100A. A rod 122 extending downward from the connecting portion 123 enters the internal space of the inserting portion 112 and the nozzle portion 111 from above the nozzle material 101 .

As shown in FIG. 7, the cylindrical portion 121 is inserted into the internal space of the housing 103. The outer diameter of cylindrical portion 121 is smaller than the inner diameter of housing 103 . As shown in FIGS. 6 and 7, the tubular portion 121 has a guide groove 124 (an example of a second groove) forming a part of a spiral shape around the axis 100A. The guide grooves 124 are formed at three locations around the axis 100</b>A and pass through the cylindrical portion 121 . The guide groove 124 faces upward toward the right in FIG. Each projection 116 is fitted into each guide groove 124 . With each protrusion 116 fitted in each guide groove 124, the valve body 102 and the nozzle member 101 are relatively rotatable about the axis 100A. By this relative rotation, each projection 116 can move to near the right end or near the left end of each guide groove 124 .

As shown in FIG. 6(A), in the state where each projection 116 is positioned near the right end of each guide groove 124, the valve body 102 is positioned against the nozzle material 101 as shown in FIG. 7(A). The rod 122 is in a relatively downwardly moved state (an example of the first state), and the lower end of the rod 122 closes the supply port 113 .

As shown in FIG. 6(B), in the state where each projection 116 is positioned near the left end of each guide groove 124, the valve body 102 is positioned against the nozzle material 101 as shown in FIG. 7(B). It is in a state of relatively upward movement (an example of the second state), the lower end of the rod 122 is positioned above the supply port 113, and the supply port 113 is opened.

As shown in FIG. 6, two annular ribs 125 annularly extending in the circumferential direction are positioned on the outer peripheral surface of the tubular portion 121 . The annular rib 125 protrudes outward from the outer peripheral surface of the tubular portion 121 . The two annular ribs 125 are positioned apart in the vertical direction 7 above the guide groove 124 . Notches 126 are formed in the respective annular ribs 125 at positions 180 degrees apart from each other about the axis 100A. Each notch 126 of the two annular ribs 125 forms a pair in the vertical direction 7 . A pair of notches 126 are aligned along the axis 100A and function as third grooves. The guide rails 133 of the housing 103 are fitted into the pair of notches 126 .

As shown in FIGS. 6 and 7, two through-holes 127 are located near the upper end of the outer peripheral surface of the cylindrical portion 121 to allow communication between the internal space of the cylindrical portion 121 and the outside. The two through-holes 127 are positioned 180 degrees apart from each other around the axis 100A.

Annular receiving portions 128 are positioned above and below the through hole 127 on the outer peripheral surface of the cylindrical portion 121 . The receiving portion 128 protrudes outward from the outer peripheral surface and supports the O-ring 129 . The O-ring 129 is made of elastically deformable resin and presses against the inner peripheral surface of the housing 103 . The O-ring 129 hermetically and liquid-tightly seals the space between the housing 103 and the tubular portion 121 . In addition, the valve body 102 is slidably supported in the vertical direction 7 relative to the housing 103 via the O-ring 129 .

The upper end of the tubular portion 121 is closed by the plug portion 130 . The internal space of the cylindrical portion 121 and the internal space of the nozzle material 101 form a storage chamber 104 in which ink is stored.

As shown in FIGS. 5 and 7, the outer shape of the housing 103 is generally cylindrical. The dimension of the housing 103 along the vertical direction 7 is larger than the dimension of the valve body 102 along the vertical direction 7 . Therefore, the valve body 102 is housed in the internal space of the housing 103 and is movable in the vertical direction 7 within the internal space of the housing 103 .

As shown in FIG. 5, two grooves 131 are formed on the outer peripheral surface of the housing 103 .
The two grooves 131 are positioned 180 degrees apart from each other around the axis 100A. The grooves 131 include a first groove 131A that opens in the lower end surface of the housing 103 and extends along the vertical direction 7, and a second groove 131B that extends leftward in the figure along the circumferential direction from the upper end of the first groove 131A. and have The first groove 131A and the second groove 131B define a continuous space. The projecting piece 87 of the tank 80 can enter the groove 131 .

As shown in FIGS. 5 and 7, two grooves 132 are formed in the inner peripheral surface of the housing 103. As shown in FIGS. The two grooves 132 are positioned 180 degrees apart from each other around the axis 100A. The groove 132 extends along the up-and-down direction 7 with an opening on the upper end surface of the housing 103 . As shown in FIG. 7A, the lower end of the groove 132 is located above the two O-rings 129 of the valve body 102 in the first state. Also, as shown in FIG. 7B, the lower end of the groove 132 is positioned between the two O-rings 129 of the valve body 102 in the second state. The two grooves 132, together with the through-hole 127 of the valve body 102, form an atmospheric communication passage that communicates the storage chamber 104 with the outside. Therefore, the air communication passage is closed in the first state shown in FIG. 7(A). In the second state shown in FIG. 7(B), the air communication passage is opened.

As shown in FIG. 7, two guide rails 133 (an example of a fourth projection) are positioned below the groove 132 on the inner peripheral surface of the housing 103 . The guide rails 133 are located at different positions by 180 degrees around the axis 100A. The guide rail 133 protrudes inward from the inner peripheral surface of the housing 103 and extends linearly along the vertical direction 7 . The circumferential dimension of the guide rail 133 is slightly smaller than the circumferential dimension of the notch 126 . The guide rail 133 is fitted into the pair of notches 126 to guide the valve body 102 movably along the vertical direction 7 .

As shown in FIG. 7, an annular projecting piece 134 is positioned near the lower end of the inner peripheral surface of the housing 103 . The projecting piece 134 is located slightly above the lower end surface of the housing 103 . The projecting piece 134 protrudes inward from the inner peripheral surface of the housing 103 . The inner diameter of the annular projecting piece 134 is slightly larger than the outer diameter of the inserting portion 112 of the nozzle material 101 . The insertion portion 112 of the nozzle member 101 is inserted inside the projecting piece 134 from the lower end of the housing 103 . The upper end surface 111U of the nozzle portion 111 of the nozzle material 101 is in contact with the projecting piece 134 . The nozzle member 101 is positioned with respect to the housing 103 by the contact between the upper end surface 111U of the nozzle portion 111 and the projecting piece 134 . The outer peripheral surface of the nozzle portion 11 and the inner peripheral surface of the housing 103 are in contact with each other. The housing 103 slides against the nozzle material 101 by the projecting piece 134 sliding against the upper end surface 111U of the nozzle portion 111 and the inner peripheral surface sliding against the outer peripheral surface of the nozzle portion 111 . It is relatively rotatable. As shown in FIG. 7A, in the first state, the projecting piece 134 is sandwiched between the nozzle portion 111 and the tubular portion 121 .

[Ink Supply to Tank 80 by Bottle 100]
Hereinafter, a method of supplying ink to the tank 80 by the bottle 100 will be described with reference to FIGS. 8 and 9. FIG.

When the ink in the tank 80 is consumed by discharging the ink from the nozzles 39 of the head 38, for example, in response to the notification indicating that the remaining amount of ink in the tank 80 is low, the user refills the tank 80 with ink. refill. When refilling the tank 80 with ink, the user exposes the top wall 82 of the tank 80 to the outside by, for example, rotating the upper cover of the multifunction machine 10 . Then, the user removes the lid 85 to expose the concave portion 84 to the outside.

The user prepares the bottle 100 in which ink is stored, and inserts the nozzle portion 111 of the bottle 100 into the concave portion 84 of the tank 80 with the supply port 113 facing downward. At this time, the bottle 100 is in a state where the supply port 113 is closed by the rod 122, that is, in the first state.

When inserting the nozzle part 111, the user aligns the first groove 131A of the housing 103 and the projecting piece 87 of the recess 84. When the first groove 131A and the projecting piece 87 are aligned, the projecting piece 87 can enter the first groove 131A, and the bottle 100 can be inserted into the recess 84 using the projecting piece 87 as a guide.

As shown in FIG. 8, when the projecting piece 87 reaches the upper end of the first groove 131A, the supply port 113 (the lower end of the nozzle portion 111) of the bottle 100 is fitted into the injection port 83 of the tank 80, and the supply is completed. The port 113 and the injection port 83 communicate with each other so that the ink can flow. Also, the engagement rib 114 of the bottle 100 fits into the groove 86 of the tank 80 . In this state, the axis 83A and the axis 100A are aligned.

　In the state (first state) shown in FIG. 8, the housing 103 can be rotated about the axis 100A with respect to the tank 80 using the projecting piece 87 as a guide. When the user rotates the housing 103 counterclockwise, the projecting piece 87 enters the second groove 131B. Even if the housing 103 is rotated, the nozzle material 101 is prevented from rotating with respect to the tank 80 because the engagement rib 114 is fitted in the recessed groove 86 . Therefore, the housing 103 rotates counterclockwise relative to the nozzle material 101 .

Since the notch 126 is fitted with the guide rail 133 , the valve body 102 rotates together with the housing 103 upon receiving the rotation of the housing 103 . In other words, the valve body 102 also rotates counterclockwise relative to the nozzle material 101 . When the valve body 102 rotates counterclockwise with respect to the nozzle member 101 from the first state shown in FIG. , the valve body 102 rotates with respect to the nozzle member 101 and slides upward with respect to the housing 103 .

The engagement between the notch 126 and the guide rail 133 does not prevent the valve body 102 from sliding in the vertical direction 7 with respect to the housing 103. It slides upward along axis 100A in the interior space of body 103 into the second state shown in FIG. In the process of changing the state of the bottle 100 from the first state to the second state, the air communication path is opened through the groove 132 after the supply port 113 is opened.

As shown in FIG. 7B, in the second state, the lower end of the groove 132 of the housing 103 is between the two O-rings 129 in the vertical direction 7 and communicates with the through hole 127 of the valve body 102. becomes. As a result, the storage chamber 104 of the bottle 100 communicates with the outside through the through hole 127 and the groove 132 and is exposed to the atmosphere. Further, as shown in FIGS. 7B and 9, in the second state, the lower end of the rod 122 is positioned above the supply port 113, so the supply port 113 is opened. As a result, the ink stored in the storage chamber 104 flows down into the internal space 81 of the tank 80 through the supply port 113 and the injection port 83 .

As shown in FIG. 9, in the second state, the projecting piece 87 of the tank 80 enters the second groove 131B of the housing 103, so the bottle 100 can move upward with respect to the tank 80. be restrained. That is, the bottle 100 cannot be pulled out from the tank 80 in the second state.

After completing the supply of ink from the bottle 100 to the tank 80, the user rotates the housing 103 clockwise relative to the tank 80 from the second state shown in FIG. Let it be the first state shown. This allows the projecting piece 87 of the tank 80 to enter the first groove 131A of the housing 103 and allows the bottle 100 to move upward with respect to the tank 80 . In the bottle 100 in the first state, the rod 122 closes the supply port 113. Therefore, even if ink remains in the storage chamber 104 of the bottle 100, the supply port 113 of the bottle 100 removed from the tank 80 will Ink does not run off.

[Action and effect of the embodiment]
According to the embodiment described above, the supply port 113 is opened or closed by rotating the valve body 102 and the housing 103 relative to the nozzle material 101 . In addition, the atmosphere communication passage formed by the through hole 127 and the groove 132 is also opened or closed.

Further, in the internal space of the housing 103, the nozzle member 101 rotates about the axis 100A and the valve body 102 slides along the axis 100A, so that the user can easily operate the housing 103.

In addition, since the valve body 102 does not protrude from the internal space of the housing 103 to the outside during the relative rotation between the first state and the second state, the operability of the bottle 100 is good.

In addition, with the engagement rib 114 of the nozzle member 101 engaged with the groove 86 of the tank 80, the housing 103 is rotated to open or close the supply port 113 and the air communication passage. That is, the user only has to rotate the housing 103 without stopping the nozzle material 101 .

Further, in the process of changing the state of the bottle 100 from the first state to the second state, after the rod 122 opens the supply port 113, the atmospheric communication passage is opened. Even if the atmospheric pressure is extremely low with respect to the atmospheric pressure, the ejection of ink from the grooves 132 is suppressed.

[Variation]
Further, in the above-described embodiment, the valve body 102 and the housing 103 are rotatable relative to the nozzle member 101, but the relative movement is not limited to rotation. It may be a slide along the That is, the valve body 102 and the housing 103 are slid along the axis 100A without rotating with respect to the nozzle material 101, so that the rod 122 opens or closes the supply port 113, and the O-ring 129 and The relative position of the groove 132 with respect to the lower end may be changed to open or close the air communication path.

Hereinafter, the bottle 150 according to the modification will be described with reference to FIGS. 10 to 14. FIG.
[Bottle 150]
A bottle 150 (an example of a printing liquid container) stores ink (an example of a printing liquid).
Bottle 150 supplies ink to tank 80 through inlet 83 . Note that the horizontal groove 86 need not be provided in the concave portion 84 of the tank 80 because the rotation of the housing 151 does not need to be restrained when the bottle 150 is rotated with respect to the tank 80 .

As shown in FIGS. 10 and 11, the outer shape of the bottle 150 is generally cylindrical elongated in the vertical direction 7 . Bottle 150 has housing 151 , valve body 152 , cam member 153 and coil spring 154 . The housing 151 is an example of the first member. The valve body 152 is an example of a second member.

As shown in FIG. 10, the housing 151 forms the outer shape of the bottle 150. The housing 151 has a nozzle portion 161 and a cylinder portion 162 .

The outer shape of the nozzle part 161 has a generally cylindrical shape that tapers downward. A supply port 163 is opened in the lower end surface 161L of the nozzle portion 161 . The supply port 163 is circular and communicates the internal space of the nozzle portion 161 with the outside.

As shown in FIG. 10, the cylindrical portion 162 has a substantially cylindrical outer shape. Two grooves 164 are formed in the outer peripheral surface of the tubular portion 162 . The two grooves 164 are positioned 180 degrees apart from each other about the axis 150A. The grooves 164 include a first groove 164A that opens in the lower end surface of the cylindrical portion 162 and extends along the vertical direction 7, and a second groove 164B that extends leftward in the figure along the circumferential direction from the upper end of the first groove 164A. and have The first groove 164A and the second groove 164B define a continuous space. The projecting piece 87 of the tank 80 can enter the groove 164 .

As shown in FIG. 14, four guide rails 165 are positioned on the inner peripheral surface of the tubular portion 162 . The guide rail 165 is located at different positions every 90 degrees around the axis 150A. The guide rail 165 protrudes inward from the inner peripheral surface of the cylindrical portion 162 and extends linearly along the vertical direction 7 . The circumferential dimension of the guide rail 165 is slightly smaller than the circumferential dimension of the notch 176 . The guide rail 165 is fitted into a pair of notches 176 to guide the valve body 152 movably along the vertical direction 7 .

As shown in FIG. 14, an annular projecting piece 166 is positioned above the guide rail 165 on the inner peripheral surface of the tubular portion 162 . The projecting piece 166 protrudes inward from the inner peripheral surface of the tubular portion 162 . The inner diameter of the annular protruding piece 166 is the same as the outer diameter of the tubular portion 171 of the valve body 152 , and airtightly blocks the outer peripheral surface of the tubular portion 171 . The guide rail 165 and the projecting piece 166 sandwich the cam member 153 in the vertical direction 7 . The cam member 153 is sandwiched between the guide rail 165 and the projecting piece 166 and is rotatable about the axis 150A. The projecting piece 166 also serves as a spring seat for the coil spring 154 .

As shown in FIGS. 10 and 14, the valve body 152 is located inside the housing 151. As shown in FIGS. The outer shape of the valve body 152 is generally cylindrical. The axis of the valve body 152 coincides with the axis 100A.

As shown in FIG. 12 , the valve body 152 has a cylindrical tubular portion 171 , a rod 172 (an example of a valve) positioned inside the tubular portion 171 , and a plug member 173 . The rod 172 has a columnar shape, and the lower end protrudes downward from the lower end of the cylindrical portion 171 . The outer diameter of the lower end of rod 172 matches the inner diameter of supply port 163 of housing 151 . As shown in FIG. 14A, the supply port 163 is closed by fitting the rod 172 into the supply port 163 .

As shown in FIG. 14 , the upper end of the rod 172 is connected with the tubular portion 171 by a plurality of connecting portions 174 . A plurality of connecting portions 174 are circumferentially spaced around the upper end of rod 172 . A space in which ink can flow is provided between two adjacent connecting portions 174 . A plurality of connecting portions 174 connect the rod 172 and the cylindrical portion 171 such that the axis of the rod 172 coincides with the axis 150A.

As shown in FIG. 14, the cylindrical portion 171 is inserted into the internal space of the housing 151. The outer diameter of cylindrical portion 171 is smaller than the inner diameter of housing 151 . As shown in FIG. 12 , two annular ribs 175 annularly extending in the circumferential direction are positioned on the outer peripheral surface of the tubular portion 171 . The annular rib 175 protrudes outward from the outer peripheral surface of the cylindrical portion 171 . The two annular ribs 175 are spaced apart in the vertical direction 7 . Notches 176 are formed in the respective annular ribs 175 at different positions every 90 degrees around the axis 100A. Each notch 176 of the two annular ribs 175 forms a pair in the vertical direction 7 . A pair of notches 176 are aligned along the axis 150A. The guide rails 165 of the housing 151 are fitted into the pair of notches 176 .

As shown in FIG. 12, two through-holes 177 (atmosphere communicating portions) are located on the outer peripheral surface of the cylindrical portion 171 and above the annular rib 175 for communicating the internal space of the cylindrical portion 171 with the outside. .
The two through-holes 177 are positioned 180 degrees apart from each other about the axis 150A.

Two bosses 178 are positioned on the outer peripheral surface of the cylindrical portion 171 at positions that are 90 degrees apart from the through hole 177 with respect to the axis 150A. The boss 178 has a cylindrical shape protruding outward from the outer peripheral surface. The boss 178 can fit into the cam groove 182 (see FIG. 13) of the cam member 153 .

A plug member 173 closes the opening at the upper end of the cylindrical portion 171 . The cylindrical portion 171 and the plug member 173 are screwed together. The internal space of the cylindrical portion 171 and the internal space of the housing 151 form a storage chamber 104 in which ink is stored. A lower end surface of the plug member 173 serves as a spring seat for the coil spring 154 .

As shown in FIG. 14, the coil spring 154 is positioned between the projecting piece 166 of the housing 151 and the plug member 173 in a compressed state. The coil spring 154 urges the valve body 152 upward with respect to the housing 151 . The valve body 152 urged upward by the coil spring 154 is restrained from moving upward by the boss 178 engaging with the cam groove 182 of the cam member 153 . This state is the first state shown in FIG. In the first state, plug member 173 protrudes upward from the upper end of housing 151 . In the first state, the user can push the plug member 173 downward against the housing 151 against the biasing force of the coil spring 154 .

As shown in FIG. 13(A), the cam member 153 has a generally cylindrical shape. As shown in FIG. 14 , the cam member 153 is positioned between the guide rail 165 and the projecting piece 166 in the internal space of the housing 151 . The axis of cam member 153 coincides with axis 150A. The outer diameter of cam member 153 is equivalent to the inner diameter of housing 151 . The inner diameter of the cam member 153 is larger than the outer diameter of the tubular portion 171 of the valve body 152 . As shown in FIGS. 11 and 14 , a tubular portion 171 is positioned in the internal space of the cam member 153 .

As shown in FIG. 13(A), four notches 181 are formed at the upper end of the cam member 153 . Each notch 181 extends downward from the upper end of the cam member 153 and penetrates the internal space and the exterior of the cam member 153 . The four notches 181 are located at different positions every 90 degrees around the axis 150A. Each notch 181 communicates with a cam groove 182 .

As shown in FIGS. 13(A) to 13(C), a cam groove 182 is formed on the inner peripheral surface of the cam member 153 . The cam groove 182 is continuous in the circumferential direction. A locking surface 183 and guide

surfaces

184 and 189 are formed on the upper end surface that defines the cam groove 182 . Guide surfaces 185 and 188 are formed on the lower end surface that defines the cam groove 182 . Two locking surfaces 183 and two

guide surfaces

184, 185, 188, and 189 are located at positions 180 degrees apart from each other about the axis 150A. 13(B) and 13(C) are cross-sectional views of the cam member 153 with different cutting planes.

The locking surface 183 is a surface located below the upper end surface of the cam member 153 and along the circumferential direction 150B around the axis 150A. The locking surface 183 locks the boss 178 of the valve body 152 .
As a result, the boss 178 does not move above the locking surface 183 against the biasing force of the coil spring 154 . A contact surface 180 extending along the up-down direction 7 and facing the locking surface 183 is positioned clockwise from the locking surface 183 . When the boss 178 abuts against the abutment surface 180 , the boss 178 does not relatively move clockwise in the cam groove 182 .

The guide surface 185 is positioned to face the locking surface 183 in the vertical direction 7 . The guide surface 185 is an inclined surface that faces downward in the clockwise direction. The guide surface 185 has a clockwise left portion facing the locking surface 183 and a clockwise right portion not facing the locking surface 183 . When the boss 178 engaged with the engaging surface 183 moves downward, it contacts the left portion of the guide surface 185 . Since the guide surface 185 faces downward clockwise, the downwardly moving boss 178 relatively moves clockwise in the cam groove 182 while moving downward. When the boss 178 moves to the right portion of the guide surface 185 , the boss 178 is positioned so as not to face the locking surface 183 .

At a position clockwise from the guide surface 185, there is a contact surface 186 extending along the vertical direction 7 and facing the guide surface 185. When the boss 178 contacts the contact surface 186, the boss 178 does not relatively move in the cam groove 182 clockwise.

The guide surface 184 is positioned directly above the contact surface 186 . The guide surface 184 is an inclined surface that faces upward in the clockwise direction. The guide surface 184 has a clockwise left portion above the abutment surface 186 and a clockwise right portion not directly above the abutment surface 186 but to the left of the abutment surface 186 . The clockwise right end of the guide surface 184 is connected to the notch 181 .

When the boss 178 in contact with the contact surface 186 moves upward, it contacts the left portion of the guide surface 184 . Since the guide surface 184 faces upward clockwise, the upwardly moving boss 178 relatively moves clockwise in the cam groove 182 while moving upward. When the boss 178 moves to the right portion of the guide surface 184 , the boss 178 is positioned so as not to face the contact surface 186 . When boss 178 reaches the right end of guide surface 184 , boss 178 moves from guide surface 184 to notch 181 . Since the notch 181 does not restrict the upward movement of the boss 178 , the boss 178 can move upward until it comes into contact with the projecting piece 166 of the housing 151 .

Below the notch 181 and to the right of the guide surface 184 in the clockwise direction, there is a guide surface 187 . The guide surface 187 is an inclined surface that faces downward in the counterclockwise direction. The guide surface 187 has its clockwise right portion directly above the guide surface 185 . The clockwise left end of guide surface 187 is directly above guide surface 188 .

When the boss 178 above the notch 181 moves downward, it comes into contact with the guide surface 187 . Since the guide surface 187 faces downward in the counterclockwise direction, the downwardly moving boss 178 relatively moves counterclockwise in the cam groove 182 while moving downward. When the boss 178 passes over the left end of the guide surface 187 , the boss 178 moves further downward and contacts the guide surface 188 .

The guide surface 188 is an inclined surface that faces downward as it goes clockwise. The guide surface 188 has a clockwise left portion located to the left of the left end of the guide surface 187 and a clockwise right portion facing the guide surface 189 . The boss 178 in contact with the guide surface 188 relatively moves clockwise in the cam groove 182 while moving downward. When the boss 178 moves to the right portion of the guide surface 188 , the boss 178 faces the guide surface 189 .

The right end of the guide surface 188 extends along the vertical direction 7 and is connected to a contact surface 190 facing the guide surface 188 . When the boss 178 abuts against the abutment surface 190, the boss 178 does not relatively move in the cam groove 182 clockwise.

The guide surface 189 is positioned directly above the contact surface 190 . The guide surface 189 is an inclined surface that faces upward in the clockwise direction. The guide surface 189 has a clockwise left portion above the abutment surface 190 and a clockwise right portion not directly above the abutment surface 190 . The right end of the guide surface 189 is connected to the left end of the locking surface 183 .

When the boss 178 in contact with the contact surface 190 moves upward, it contacts the left portion of the guide surface 189 . Since the guide surface 189 faces upward clockwise, the boss 178 moving upward relatively moves clockwise in the cam groove 182 while moving upward. When the boss 178 moves to the right portion of the guide surface 189 , the boss 178 is positioned so as not to face the contact surface 190 . When boss 178 reaches the right end of guide surface 189 , boss 178 moves from guide surface 189 to locking surface 183 . The locking surface 183 prevents the boss 178 from moving upward.

In the first state shown in FIG. 14(A), the boss 178 is positioned on the locking surface 183 of the cam groove 182 . Thereby, the valve body 152 is maintained in the first state against the biasing force of the coil spring 154 . In the first state, the rod 172 of the valve body 152 closes the supply port 163 . A through hole 177 of the valve body 152 is located below the projecting piece 166 . As a result, the storage chamber 155 is not communicated with the atmosphere through the through hole 177 .

The user inserts the nozzle portion 161 of the bottle 150 into the recess 84 of the tank 80 and pushes the plug member 173 of the bottle 150 in the first state downward into the housing 151 . As a result, the valve body 152 moves downward with respect to the housing 151 against the biasing force of the coil spring 154 . When the valve body 152 moves downward and the boss 178 moves downward, the boss 178 positioned on the locking surface 183 of the cam groove 182 is guided by the cam groove 182 as described above, and relatively The cam groove 182 is moved clockwise. Since the notch 176 is fitted to the guide rail 165 of the housing 151 , the valve body 152 cannot rotate with respect to the housing 151 but only slides in the vertical direction 7 . Therefore, the cam member 153 rotates counterclockwise about the axis 150A with respect to the housing 151 and the valve body 152 . As a result, the boss 178 positioned on the locking surface 183 relatively moves clockwise in the cam groove 182 and comes into contact with the contact surface 186 .

When the user stops pushing the plug member 173 downward, the biasing force of the coil spring 154 causes the valve body 152 to move upward with respect to the housing 151 . As the boss 178 moves upward together with the valve body 152 , the boss 178 in contact with the contact surface 186 relatively moves clockwise in the cam groove 182 and reaches the notch 181 . As shown in FIGS. 11(B) and 14(B), the boss 178 moved upward from the cam groove 182 contacts the projecting piece 1667 of the housing 151 . Due to the contact between the boss 178 and the projecting piece 166, the valve body 152 is positioned above the housing 151 from the first state. That is, as shown in FIG. 14B, bottle 150 is in the second state.

As shown in FIG. 14(B), in the second state, the through hole 177 of the valve body 152 is located above the protruding piece 166 . As a result, the storage chamber 155 of the bottle 150 communicates with the outside through the through hole 177 and is exposed to the atmosphere. Further, as shown in FIG. 14B, in the second state, the rod 172 of the valve body 152 is positioned above the supply port 163, and the supply port 163 is opened. As a result, the ink stored in the storage chamber 155 flows out from the supply port 163 and is supplied to the tank 80 .

[Other variations]
In the above-described embodiment, the nozzle material 101 has the projections 116 and the valve body 102 has the guide grooves 124. However, since the relationship between the projections and the grooves is relative, the nozzle material Either one of 101 and valve body 102 should have a convex portion and the other should have a groove. Therefore, a guide groove (an example of a first groove) is formed on the outer peripheral surface of the insertion portion 112 of the nozzle portion 101, and a convex portion (second convex portion) protruding inward on the inner peripheral surface of the cylindrical portion 121 of the valve body 102 is formed. An example of a portion) may be formed, and the guide groove and the convex portion may be fitted to each other. Further, instead of the projecting piece 134 of the housing 103, a projecting piece may project outward from near the lower end of the inserting portion 112 of the nozzle material 101. FIG.

Further, as shown in FIG. 15, for example, instead of the convex portion 116, a male screw portion 141 extending spirally around the axis 100A is formed on the inner peripheral surface of the insertion portion 112, and instead of the guide groove 124, a male screw portion 141 is formed. A female threaded portion 142 extending around the axis 100A may be formed on the outer peripheral surface of the tubular portion 121 .

Similarly, in the embodiment described above, the pair of notches 126 are formed in the valve body 102 and the guide rails 133 are formed in the housing 103. (An example of a third convex portion) may be formed, and a groove into which the guide rail is fitted may be formed in the inner peripheral surface of the housing 103 .

In the above-described embodiment, the engagement rib 114 of the nozzle member 101 is engaged with the groove 86 of the tank 80. 114 is not limited. For example, a groove may be formed in the nozzle material 101 , and the groove may be engaged with a protrusion formed in the tank 80 to prevent the nozzle material 101 from rotating.

Further, the relative movement of the nozzle material 101, the valve body 102, and the housing 103 does not necessarily require that the nozzle material 101 is prevented from rotating or sliding by the tank 80. For example, the user can The valve body 102 and the housing 103 may be moved relative to the nozzle material 101 while the nozzle material 101 is fixed.

Also, the nozzle member 101, the valve body 102, and the housing 103 do not necessarily have to be one member, and a plurality of members may be combined. Moreover, the shape of the supply port 113 is not limited to a circle, and may be other shapes such as an ellipse and a square. Also, the air communication path is not limited to the one constituted by the through hole 127 and the groove 132 .

Also, in the tank 80 , the injection port 83 and the recess 84 may be formed outside the upper wall 82 . For example, the injection port 83 and the recess 84 may be formed on an inclined wall that is the outer surface of the tank 80 and that is inclined with respect to the vertical direction 7 . Further, the tank 80 does not necessarily have to be mounted on the carriage 40, and the head 38 and the tank 80 may be connected by a tube or the like so that the ink can flow.

Also, in the above-described embodiments, ink was described as an example of the printing liquid, but the printing liquid is not limited to ink. For example, the printing liquid may be a pretreatment liquid that is ejected onto the recording paper prior to ink during printing, or water that is sprayed to prevent the nozzles 39 of the head 38 from drying.

80...Tank 83...Injection port 86...Groove (surrounding part)
100, 150 Bottles (liquid containers for printing)
101 Nozzle material (first member)
102... Valve body (moving member, second member)
103 ... housing (supporting member, second member)
104, 155...

Storage chambers

113, 163... Supply port 114... Engagement rib (engagement portion)
116... Convex portion (first convex portion)
122, 172 Rods (valves)
124... Guide groove (second groove)
126 Notch (third groove)
127... Through-hole (a part of air flow path)
132 Groove (a part of air flow path)
133... Guide rail (fourth protrusion)
151 ... housing (first member)
152... Valve body (second member)

Claims

a first member having a supply port communicating with the internal space;
a valve that opens or closes the supply port, and a second member that has an atmosphere communication passage that communicates the internal space with the outside,
The first member and the second member are connected so as to be relatively movable between a first state and a second state,
The internal space of the first member and the internal space of the second member are storage chambers for storing liquid,
the valve closes the supply port in the first state and opens the supply port in the second state;
The printing liquid container, wherein the atmospheric communication path is closed in the first state and opened in the second state.
The second member is
a moving member having the valve;
a support member that slidably supports the moving member,
The first member and the support member are relatively rotatably connected,
the moving member receives the rotation of the support member and slides in an axial direction along the rotation center with respect to the first member;
2. The printing liquid container according to claim 1, wherein the atmospheric communication passage is closed or opened by sliding the moving member.
The first member has a first groove extending in a helical shape along the axial direction, or a first protrusion projecting in a direction intersecting the axial direction,
The moving member has a second protrusion that engages with the first groove, or a second groove that extends spirally along the axial direction and engages with the first protrusion,
The moving member has a third groove or a third protrusion extending along the axial direction,
3. The printing liquid container of claim 2, wherein said support member has a fourth protrusion or groove that engages said third groove.
The printing liquid container according to claim 2 or 3, wherein the support member has a cylindrical shape, and at least a portion of the first member and the moving member are positioned in the inner space thereof.
5. The printing liquid container according to claim 4, wherein in the first state and the second state, the moving member is positioned in the internal space of the support member.
The printing liquid container according to any one of claims 2 to 5, wherein the atmospheric communication passage is defined by the moving member and the supporting member.
The printing liquid container supplies the liquid through the inlet to the tank of the printing device,
The first member has an engaging portion that engages with a peripheral portion of the injection port of the tank,
In a state in which the engaging portion is engaged with the peripheral portion, the supply port and the injection port are in fluid communication, and the first member can rotate with respect to the peripheral portion. A printing liquid container as claimed in any one of claims 2 to 6 which is restrained.
8. The printing liquid according to any one of claims 1 to 7, wherein in the process of changing the state from the first state to the second state, the atmosphere communication passage is opened after the valve opens the supply port. container.