Liquid containers and liquid spraying equipment

Abstract

A liquid container and a liquid injection device are disclosed. The liquid container includes: a container body comprising a storage chamber configured to store liquid and a supply port configured to supply liquid to the storage chamber; and a plug member for sealing the supply port, the plug member comprising a body portion located outside the storage chamber and the supply port, and a plug portion located inside the storage chamber and the supply port. The plug portion has a press-fit portion that presses into the supply port and a front end portion exposed to the storage chamber, the axis of the plug portion being perpendicular to the opening surface of the supply port, and the front end surface of the front end portion being an inclined surface inclined relative to the surface of the plug portion.

Description

Technical Field

[0001] The present invention relates to a liquid container capable of containing liquid and a liquid spraying device including said liquid container. Background Technology

[0002] In recent years, typical liquid jetting equipment includes a liquid jet head that jets liquids (such as fluids) and a liquid container that stores the liquid to be supplied to the liquid jet head. The liquid in the liquid container is supplied to the liquid jet head via pipes and a liquid flow path.

[0003] Unlike the aforementioned liquid injection devices that supply liquid from a liquid container to a liquid injection head via pipes and liquid flow paths, Japanese Patent Application Publication No. 2012-20497 discloses a liquid injection device that injects liquid from an injection port provided in a large-capacity liquid container into a liquid injection head. The liquid container disclosed in Japanese Patent Application Publication No. 2012-20497 includes an injection port for injecting liquid and a plug member to prevent liquid leakage from the injection port. The plug member is configured to be detachable from the injection port. When liquid is to be injected, the plug member is detached from the injection port; otherwise, the plug member is attached to the injection port to prevent liquid leakage to the outside.

[0004] When liquid is sprayed into a liquid container, the liquid may adhere to the periphery of the spray port included in the liquid container. When the plug member is attached to the spray port and liquid adheres to the periphery of the spray port, the liquid adhering to the periphery of the spray port may contaminate the plug member. In addition, when the liquid spraying device moves while the liquid is stored in the liquid container, the liquid in the liquid container may also adhere to the plug member due to the sloshing of the liquid.

[0005] The plug component is press-fitted into the injection port of the liquid container, and when the plug component is disassembled, a force resisting the frictional force acting on the press-fitted portion of the plug component is applied to the plug component to disassemble the plug component.

[0006] Therefore, due to the effects of removing the plug component from the injection port, the liquid adhering to the plug component may spill out. Additionally, after removing the plug, the liquid adhering to the plug component may adhere to the user's hands. Summary of the Invention

[0007] The present invention has been implemented in view of the above-mentioned problems, and the object of the present invention is to provide a liquid container including a plug member that can reduce the possibility of liquid spillage or contamination of human hands when the plug member is removed to open the liquid container.

[0008] According to one aspect of this disclosure, a liquid container is provided, the liquid container comprising: a container body including a storage chamber configured to store liquid and a supply port configured to supply liquid to the storage chamber; and a plug member configured to be detachable from the container body to seal the supply port, the plug member including a body portion located outside the storage chamber and the supply port in an attached state of the plug member being attached to the container body, and a plug portion located inside the storage chamber and the supply port in the attached state, wherein the plug portion has a press-fit portion press-fitted into the supply port in the attached state and a front end portion exposed to the storage chamber on a front end side of the press-fit portion in the attached state, wherein in the attached state, the axis of the plug portion is perpendicular to the opening surface of the supply port, and in the attached state, the front end surface of the front end portion is an inclined surface inclined relative to a surface of the plug portion perpendicular to the axis, and the inclined surface is inclined such that the side of the inclined surface located below in the vertical direction protrudes in the direction of the axis relative to the side of the inclined surface located above in the vertical direction of the inclined surface.

[0009] According to one aspect of this disclosure, a liquid jetting device is provided, the liquid jetting device comprising a liquid jetting head for jetting liquid, and a liquid container as described above.

[0010] Other features of the invention will become apparent from the following description of exemplary embodiments, with reference to the accompanying drawings. Attached Figure Description

[0011] Figure 1 This is a perspective view showing the mechanism portion of the liquid jetting device according to the first embodiment;

[0012] Figure 2 This is a cross-sectional view showing the liquid jetting device according to the first embodiment;

[0013] Figure 3 This is a perspective view showing the liquid jetting device in the first embodiment that will be refilled with liquid;

[0014] Figure 4 This is a perspective view showing the liquid container of the liquid jetting device according to the first embodiment;

[0015] Figure 5 This is a cross-sectional view showing the plug component in the comparative example;

[0016] Figures 6A to 6C Each is a cross-sectional view of the plug member according to the first embodiment;

[0017] Figure 7This is a perspective view showing the plug member according to the first embodiment;

[0018] Figures 8A to 8C Each is a cross-sectional view of the plug member according to the second embodiment;

[0019] Figures 9A to 9C Each is a cross-sectional view of the plug member according to the third embodiment;

[0020] Figures 10A to 10C Each is a cross-sectional view of the plug member according to the fourth embodiment;

[0021] Figure 11 This shows a cross-sectional view of the modified plug component; and

[0022] Figure 12 This is a cross-sectional view showing another plug component based on the modification. Detailed Implementation

[0023] Referring to the accompanying drawings, a description of preferred embodiments of the technology disclosed in this application will be given below. However, the dimensions, materials, shapes, relative positioning, etc., of the components described below will be appropriately varied depending on the configuration of the device to which the invention is applied and various conditions, and are therefore not intended to limit the scope of the invention to the following description. In particular, for configurations or steps not shown or stated, techniques well-known or publicly disclosed in the relevant technical field may be applied. Additionally, repeated descriptions may be omitted as appropriate.

[0024] First Embodiment

[0025] A description of a first embodiment of the present invention will be given with reference to the accompanying drawings. Figure 1 This is a perspective view showing the mechanism portion of the liquid jetting device 200 applicable to this embodiment. Figure 2 It shows the liquid jetting device 200 along... Figure 1 A diagram of the cross section of line AA. Note that, for ease of description, Figure 2 Illustrations of each component or omitted components are shown in different sizes.

[0026] The liquid jetting device 200 includes a feeding unit 1, a conveying unit 2, a jetting unit 3, a supply unit 4, and a display unit 5. The feeding unit 1 uses a feeding roller 10 to separate each sheet of sheet-like printing media from a stack of printing media and supplies the separated printing media to the conveying unit 2. The conveying unit 2 includes a pressure plate 13 between a conveying roller 11 and a sheet discharge roller 12, the pressure plate being disposed downstream of the feeding unit 1 in the conveying direction to hold the printing media. The conveying unit 2 conveys the printing media fed from the feeding roller 10 using the conveying roller 11, the sheet discharge roller 12, and the like.

[0027] The jetting unit 3 uses a liquid jetting head 15 mounted on a bracket 14 to jet liquid toward the printing medium. The printing medium, conveyed by the transport unit 2, is supported vertically from below by a pressure plate 13. Liquid is then jetted from the liquid jetting head 15, which is located above in the vertical direction, to form an image based on image information. A liquid container 16 is capable of holding liquid therein, and the supply unit 4 is configured to supply liquid from the storage chamber (reservoir) 100 of the container body 111 to the liquid jetting head 15 via a flow path 101 and a flexible supply tube 17.

[0028] In this embodiment, the liquid is ink, and more specifically, four supply tubes 17 of different colors of ink (black, magenta, cyan, and yellow) extend from the liquid container 16 to be connected in a bundled manner to the liquid nozzle 15.

[0029] When liquid supplied to the liquid nozzle 15 is ejected from the injection port of the liquid nozzle 15, an amount of liquid equal to the amount ejected is supplied from the liquid container 16 to the liquid nozzle 15. Then, an amount of air equal to the amount of liquid supplied to the liquid nozzle 15 flows from the atmospheric communication port 102, which is vertically positioned above the container body 111, into the liquid container 16. The display unit 5 is used to notify the user of the device status during operation or to perform a display when the user selects between operations.

[0030] Figure 3 This is a perspective view showing a liquid jetting device 200 that will be refilled with liquid from a liquid refill container 201. As shown, in this embodiment of the liquid jetting device 200, when liquid is supplied, the user opens the container cap 7 and supplies liquid from the liquid refill container 201 to the storage chamber 100 via a supply port 106 included in the liquid container 16. A plug member 105 is attached to the supply port 106 and is configured to be detachable from the container body 111 and to seal the supply port 106. When the storage chamber 100 is to be refilled with liquid from the liquid refill container 201, the user removes the plug member 105 from the supply port 106. It should be noted that the liquid container 16 is not limited to the configuration used in this embodiment where the liquid container 16 is embedded in the device body of the liquid jetting device 200. The liquid container 16 can also be configured to be located outside the body of the liquid jetting device 200, as long as liquid can be supplied from the liquid container 16 to the liquid jetting head 15.

[0031] Figure 4This is a perspective view showing a liquid container 16 of a liquid injection device 200. The liquid container 16 in this embodiment includes a container body 111 and a plug member 105. The container body includes a storage chamber 100 and a supply port 106. The container body 111 is molded from a synthetic resin such as polypropylene and has a generally cubic external shape. The container body 111 has a front wall 1010, a right wall 1020, a left wall 1030, an upper wall 1040, and a lower wall 1050. The front wall 1010 includes an upright wall 1010A extending from the lower wall 1050 in a generally vertical direction and an inclined wall 1010B (example of an outer wall) connected to the upper end of the upright wall 1010A and inclined relative to each of the vertical and front-back directions. The inclined wall 1010B is inclined on the rear side of the upright wall 1010A and forms a supply port 106 for liquid.

[0032] Meanwhile, the rear surface of the container body 111 is open. Then, the membrane 1060 is welded to the corresponding rear ends of the right wall 1020, left wall 1030, color separation walls 1021, 1022 and 1023, upper wall 1040, and lower wall 1050 to seal the container body 111 and form a rear wall corresponding to the rear surface. In other words, the membrane 1060 forms the rear wall of the container body 111. In the above configuration, a storage chamber 100 for storing liquid is formed.

[0033] Each of the plug members 105 and each of the inclined walls 1010B has corresponding markings 1070A and 1070B engraved on its upper surface. When a user uses the plug member 105 to close the supply port provided in the inclined wall 1010B, the engraved markings 1070A and 1070B serve as markers for aligning the direction of each of the plug members 105. It should be noted that any markings can be used instead of or attached to the engraved markings 1070A and 1070B, as long as the markings are usable when the user aligns the plug member 105. For example, the color of a portion of the plug member 105 can be changed, a seal can be applied to the plug member, or a pair of interlocking recesses and protrusions can be provided to a portion of the plug member 105 and a portion of the supply port 106.

[0034] Figure 5 This is a diagram showing a cross-section of the plug member 905 in the comparative example, while Figure 6A This is a cross-sectional view showing the plug member 105 in this embodiment. It should be noted that... Figure 6A The plug component 105 is along Figure 4 The cross-sectional view of line V-V' in the middle, and Figure 5 It shows the corresponding Figure 6A The cross-section of the plug component 905 in the cross-sectional diagram. Figure 6B , Figure 6C and Figures 8A to 12 It also shows the corresponding Figure 6A The cross-section of the plug component in the cross-sectional diagram.

[0035] like Figure 5 As shown, the plug member 905 includes: a body portion 905C, which is located outside the storage chamber 100 and the supply port 106 in an attached state; and a plug portion 905D, which is inserted into the supply port 106 to close the supply port 106. The plug member 905 is attached while still elastically deformable, such that the supply port 106 is held between the protrusions of the plug member 905 in the vertical direction. The body portion 905C of the plug member 905 includes a cover portion 905B covering the opening surface of the supply port 106 and a protrusion portion 905A protruding from the cover portion. The protrusion portion 905A also serves as a handle portion for the user to lift when the plug member 905 is removed from the supply port 106. The user pulls the protrusion portion 905A in the direction of arrow 909 to pull the plug member 905 out of the supply port 106 and thereby open the supply port 106. It should be noted that in the following description, the protruding part is also referred to as the "handle part".

[0036] like Figure 5 As shown, the handle portion 905A is formed to protrude from the upper surface 904 of the cover portion 905B, which extends along the opening surface of the supply port 106 when the plug member 905 is attached to the supply port 106.

[0037] In the comparative example, where the rear surface 907 of the plug member 905 is approximately horizontal relative to the opening surface of the supply port 106, ink 108 may drip when the user pulls the plug member 905 out of the supply port 106 after it has already adhered to the rear surface 907. Therefore, the dripped ink 108 may adhere to the user's fingers or similar surfaces.

[0038] To prevent this, the plug member 105 in this embodiment has the following configuration: Figure 6A In the cross-section shown, the rear surface 107 is configured to slope from one inner peripheral surface of the supply port 106 toward the other inner peripheral surface of the supply port 106. Figure 7 It shows that in such Figure 6A The diagram shows a perspective view of the plug member 105 in the state where the supply port 106 is closed by the plug member 105. Figure 6A and Figure 7As shown, the handle portion 105A protrudes from the upper surface 104. It should be noted that the "protruding" state of the handle portion 105A refers to the state in which the handle portion 105A protrudes from the upper surface 104 to the extent that it allows the user to lift the handle portion 105A or apply force to the handle portion 105A.

[0039] The axis 105CP of the plug member 105 is a straight line extending through the center of the plug portion 105D, as described below, when viewed from the open surface of the supply port 106. Figure 6A As shown, the supply port 106 is formed by an external opening 106D leading to the exterior of the container body 111, an internal opening 106E leading to the storage chamber 100, and an inner peripheral surface 106C connecting the external opening 106D and the internal opening 106E. It should be noted that the opening surfaces of the external opening 106D and the internal opening 106E of the supply port 106 correspond to the opening surfaces of the supply port perpendicular to the axis 105CP.

[0040] refer to Figure 6A and Figure 7 Further description of the plug member 105 will be given below. In the attached state, where the plug member 105 is attached to the container body 111 to seal the supply port 106, the plug member 105 includes a body portion 105C, which includes a handle portion 105A located outside the storage chamber 100 of the container body 111 and the supply port 106, and a cover portion 105B. The cover portion 105B contacts an edge portion of the external opening 106D of the supply port 106. Additionally, the plug member 105 includes a plug portion 105D to be inserted into the supply port 106. Figure 7 As shown, the plug portion 105D is a component having a generally cylindrical shape. The plug portion 105D has a press-fit portion 105E to be press-fitted into the supply port 106 and a front end portion 105F exposed to the storage chamber 100 on the front end side of the press-fit portion 105E.

[0041] With the plug member 105 attached to the container body 111, the press-fit portion 105E indicates the portion of the outer peripheral surface of the plug portion 105D corresponding to the first region, which will be press-fitted into the inner peripheral surface 106C of the supply port 106. Simultaneously, with the plug member 105 attached to the container body 111, the front end portion 105F indicates the portion of the outer peripheral surface of the plug portion 105D corresponding to the second region, which will be exposed to the storage chamber 100 on the front end side of the first region.

[0042] exist Figure 6AIn the cross-section, when viewed from axis 105CP, the lowest point 107A in the gravity direction of the inclined portion of the rear surface 107, which serves as the front end surface of the plug member 105, is located on the same side as the lowest point 106A in the gravity direction at the inner peripheral surface 106C of the supply port 106. Simultaneously, when viewed from axis 105CP, the highest point 107B in the gravity direction of the inclined portion of the rear surface 107 is located on the same side as the point 106B corresponding to the lowest point 106A in the gravity direction at the inner peripheral surface 106C of the supply port 106. In the following description, when... Figure 6A When observing the plug member 105 in the cross section shown, the lowest point in the direction of gravity of the inclined portion of the rear surface 107 is also called the "lowest point of the rear surface", and the highest point in the direction of gravity of the inclined portion of the rear surface 107 is also called the "highest point of the rear surface".

[0043] The rear surface 107 of the plug member 105 is inclined relative to the surface of the plug portion 105D perpendicular to the axis 105CP. The rear surface 107 is inclined such that, in the attached state of the plug member 105 attached to the container body 111, the lower side of the plug member in the vertical direction (lowest point of the upper surface) protrudes in the direction of the axis 105CP relative to the upper side of the plug member in the vertical direction (highest point of the rear surface).

[0044] Figure 6A The cross-section shown is a vertical section along the axis 105CP, including the plug portion 105D, in the attached state. In this cross-section, a first virtual line 107D is provided, connecting the lowest point 107A of the rear surface to a contact point that contacts the lowest point 106A in the gravity direction. The lowest point 107A of the rear surface serves as the lowest endpoint of the rear surface 107, which acts as the front end surface, and the lowest point 106A in the gravity direction serves as the lowest endpoint of the internal opening 106E in the front end portion 105F. Additionally, a vertical virtual line 107C is provided, extending upwards from the lowest point 107A of the rear surface in the vertical direction. It is then assumed that the angle formed between the first virtual line 107D and the vertical virtual line 107C is A. Simultaneously, a second virtual line 107E is provided, connecting the lowest point 107A of the rear surface 107 to the highest point 107B in the gravity direction, which serves as the highest endpoint of the rear surface 107. Then, assume that the angle formed between the second virtual line 107E and the vertical virtual line 107C is B. At this time, the inclined shape of the rear surface 107 is set to satisfy (angle A) ≥ (angle B). The lowest point 107A of the rear surface is set to be below the lowest point 106A in the gravity direction located at the inner peripheral surface 106C of the supply port 106 in the gravity direction.

[0045] Furthermore, in the attached state where the plug member 105 is attached to the container body 111, the lower side of the rear surface 107 (the side with the lowest point 107A of the rear surface) is located on the storage chamber 100 side, rather than on the internal opening 106E side of the supply port 106. Simultaneously, the upper side of the rear surface 107 (the side with the highest point 107B of the rear surface) is located on the inner peripheral surface 106C side of the supply port 106, rather than on the internal opening 106E side of the supply port 106.

[0046] With the rear surface 107 having this inclined shape, since the inner opening 106E is located below the outer opening 106D, as... Figure 6A As shown, the ink 108 adhering to the rear surface 107 may accumulate at the lowest point 107A of the rear surface on the gravity direction side of the inclined surface.

[0047] Figure 6B and Figure 6C It is shown in order that it will be in Figure 6A The diagram shows the process of pulling out the plug component 105. Figure 6A In this state, when the user pulls the handle portion 105A in the direction of arrow 109, the plug member 105 begins to be pulled out. At this time, the plug member 105 moves in the direction of arrow 109, wherein the side surface of the plug portion 105D rubs against the inner peripheral surface 106C of the supply port 106. In addition, due to the surface tension between the inner peripheral surface 106C of the supply port 106 and the ink 108 accumulated at the lowest point 107A of the rear surface, the ink 108 gradually adheres to the inner peripheral surface 106C of the supply port 106 as the plug member 105 is gradually pulled out. Figure 6B ).

[0048] Then, when the plug member 105 is fully pulled out of the supply port 106, the amount of ink 108 adhering to the rear surface 107 ( Figure 6C Less than the amount in the plugged state ( Figure 6A Therefore, when the user pulls the plug member 105 out of the supply port 106, the plug member 105 can reduce ink spillage and ink dripping.

[0049] It should be noted that the inclined portion of the rear surface 107 can also be parallel to the opening surface of the supply port 106. However, as Figure 6A As shown, the rear surface 107 is preferably inclined from the opening surface of the supply port 106. By providing this inclination to the rear surface 107, when the ink 108 has adhered to the rear surface 107, the ink 108 may drip in the direction of gravity and accumulate at the lowest point 107A of the rear surface.

[0050] Furthermore, the inclined portion of the rear surface 107 is preferably formed to satisfy (angle A) ≥ (angle B). This allows ink 108 adhering to the surface (rear surface 107) extending from the highest point 107B to the lowest point 107A of the rear surface (on the angle B side) to exert a force against surface tension in the direction of gravity more likely than ink 108 adhering to the surface (side surface of the plug member 105) on the angle A side. Therefore, the ink 108 is relatively unevenly concentrated on the surface on the angle A side of the straight line 107C that extends vertically through the lowest point 107A of the rear surface to serve as a boundary. Therefore, when the plug member 105 is pulled out, the ink 108 adhering to the rear surface 107 can be moved to the supply port 106 more efficiently and the amount of ink adhering to the rear surface 107 can be reduced.

[0051] Second Embodiment

[0052] Next, a description of a second embodiment of the present invention will be given. It should be noted that in the following description, components identical to those in the first embodiment are given the same reference numerals, and detailed descriptions thereof are omitted. In this embodiment, in Figure 8A In the cross-section shown, a liquid wiping portion 110 is formed on the inner peripheral surface of the supply port 106, on the side of the lowest point 107A of the rear surface 107 of the plug member 205 according to this embodiment, which is at least below in the vertical direction. Each liquid wiping portion has a recessed shape. When viewed from the axis 105CP of the plug member 205, the liquid wiping portion 110 is formed on the same side as the lowest point 107A of the rear surface. It should be noted that in Figure 8A In this embodiment, the liquid wiping portion 110 is formed at two locations on the inner peripheral surface of the supply port 106, but it is also possible that the liquid wiping portion 110 is formed at one location or at multiple locations. As will be described below, when the plug member 205 is attached to / removed from the container body 111, the liquid wiping portion 110 slidably moves against the area of ​​the front end portion 105F of the plug portion 105D located on the storage chamber 100 side rather than on the supply port 106 side in the attached state to wipe away the liquid.

[0053] Each liquid wiping portion in the liquid wiping portion 110 can be formed by cutting the inner peripheral surface of the supply port 106 after molding the container body 111. Alternatively, each liquid wiping portion in the liquid wiping portion 110 can also be formed, for example, by molding the supply port 106 into two parts obtained by separating the container body 111 when viewed from above in a vertical direction, and joining the individual parts together by a secondary molding process.

[0054] As long as the liquid adhering to the front end portion 105F of the plug portion 105D can be wiped away, the extent to which the liquid wiping portion 110 is formed in the inner peripheral surface of the supply port 106 can be appropriately determined. Therefore, each liquid wiping portion of the liquid wiping portion 110 can also be formed around the entire periphery of the inner peripheral surface of the supply port 106.

[0055] Figure 8B and Figure 8C It is shown in order that it will be in Figure 8A The diagram shows the process of the plug component 205 being pulled out of the supply port 106, similar to... Figure 6B and Figure 6C .exist Figure 8A In the current state, when the user pulls the handle portion 105A in the direction of arrow 109 in the figure, the plug member 205 begins to be pulled out. At this time, the plug member 205 moves in the direction of arrow 109, wherein the side surface of the plug portion 105D rubs against the inner peripheral surface of the supply port 106 and against the liquid wiping portion 110 formed in the inner peripheral surface. Since the plug member 205 is attached to the supply port 106 while elastically deforming, the portion of the side surface of the plug member 205 located at the liquid wiping portion 110 deforms towards the liquid wiping portion 110 during the process of the plug member 205 being pulled out. Therefore, the ink 108 adhering to the plug member 205 is wiped away by the liquid wiping portion 110. Therefore, the amount of ink 108 adhering to the rear surface 107 of the plug member 205 ( Figure 8C The value is reduced to less than that of the first embodiment.

[0056] Third Embodiment

[0057] Next, a description of a third embodiment of the present invention will be given. It should be noted that in the following description, components identical to those in the first and second embodiments are given the same reference numerals, and detailed descriptions thereof are omitted. In this embodiment, in Figure 9A In the cross-section shown, liquid wiping portions 210, each with a protruding shape, are formed instead of the liquid wiping portions 110 in the second embodiment. When viewed from the axis 105CP of the plug member 205, the liquid wiping portions 210 are formed on the same side as the lowest point 107A of the rear surface. It should be noted that in Figure 9A In this case, the liquid wiping portion 210 is formed at two locations on the plug member 305, but it is also possible that the liquid wiping portion 210 is formed at one location or at multiple locations.

[0058] Figure 9B and Figure 9C It is shown in order that it will be in Figure 9AThe diagram shows the process of the plug component 305 being pulled out from the supply port 106, similar to... Figure 8B and Figure 8C .exist Figure 9A In the current state, when the user pulls the handle portion 105A in the direction of arrow 109, the plug member 305 begins to be pulled out. At this time, the plug member 305 moves in the direction of arrow 109, wherein the side surface of the plug portion 105D rubs against the inner peripheral surface of the supply port 106 and against the liquid wiping portion 210 formed on the inner peripheral surface. Since the plug member 305 is attached to the supply port 106 while elastically deforming, the portion of the side surface of the plug member 305 located at the liquid wiping portion 210 deforms towards the liquid wiping portion 210 during the process of pulling out the plug member 305. Therefore, the ink 108 adhering to the plug member 305 is wiped away by the liquid wiping portion 210. Therefore, the amount of ink 108 adhering to the rear surface 107 of the plug member 305 ( Figure 9C The value is reduced to less than that of the first embodiment.

[0059] Fourth embodiment

[0060] Next, a description of the fourth embodiment of the present invention will be given. It should be noted that in the following description, components identical to those in the first to third embodiments are given the same reference numerals, and detailed descriptions thereof are omitted. In this embodiment, in Figure 10A In the cross-section shown, the plug member 405 includes a handle portion 405A. The handle portion 405A is formed to protrude from the cover portion 405B of the plug member 405 in a direction parallel to the upper surface 404. Figure 10A In the cross-section, a support portion 405E is formed on the side opposite to the handle portion 405A, relative to the central axis 405CP of the cover portion of the plug member 405, capable of connecting the cover portion 405B and the component of the non-plug member 405. The connection between the support portion 405E and the component of the non-plug member 405 prevents the plug member 405 from detaching from the container body 111 and the liquid injection device 200. Examples of components connected to the support portion 405E include lines connecting the support portion 405E to the container body 111. Various methods can be used to connect the support portion 405E to other components, as long as it can prevent the plug member 405 from detaching.

[0061] Figure 10B and Figure 10C It is shown in order that it will be in Figure 10A The diagram shows the process of the plug component 405 being pulled out of the supply port 106, similar to... Figure 6B and Figure 6C .exist Figure 10AIn this state, when the user pulls the handle portion 405A in the direction of arrow 409 (rotation direction), the plug member 405 begins to be pulled out. At this time, the plug member 405 moves in the direction of arrow 409, wherein the side surface of the plug portion 405D rubs against the inner peripheral surface of the supply port 106 and against the liquid wiping portion 110 formed in the inner peripheral surface. Figure 10B Since the plug member 405 is attached to the supply port 106 while elastically deforming, the portion of the side surface of the plug member 405 located at the liquid wiping portion 110 deforms towards the liquid wiping portion 110 during the process of pulling out the plug member 405. Therefore, when the plug member 405 is pulled out in the direction of arrow 409, the ink 108 adhering to the plug member 405 is wiped off by the liquid wiping portion 110. Therefore, the amount of ink 108 adhering to the rear surface 107 of the plug member 405 ( Figure 10C The number of cases is reduced to less than that of the first embodiment.

[0062] As described above, for the liquid jetting device according to each embodiment, a liquid container capable of reducing the possibility of liquid spilling or adhering to a person's hands when the plug member of the liquid container is pulled out to open the container, and a liquid jetting device including said container can be provided.

[0063] Although embodiments related to the technology disclosed in this application have been described above, the above description of the embodiments is merely an example of the technology disclosed in this application, and the technology disclosed in this application can be implemented by appropriately modifying or combining the embodiments without departing from the spirit of the invention. A description of modifications to the above embodiments will be given.

[0064] First revision

[0065] The liquid wiping portions 110 or 210 in the above embodiments are not limited to the shapes described above, and may suitably have any shape that allows the plug member to deform and rub against the inner peripheral surface of the supply port 106 during the process of pulling the plug member out of the supply port 106. For example, the liquid wiping portions 110 and 210 may also have the shape described above. Figure 11 The liquid wiping part 310 shown and Figure 12 The liquid wiping portion 410 shown has an R-shaped shape. The shape of the liquid wiping portion can be appropriately determined based on the materials of the wall portions forming the plug member and the supply port, their hardness, etc.

[0066] When comparing the corresponding shapes of the liquid wiping portions in the above embodiments and this modification, the liquid wiping portions with a concave shape (such as those in the second and fourth embodiments) provide friction between the plug member and the inner peripheral surface of the supply port, and this friction is less than when the liquid wiping portion has a protruding portion. Therefore, from the perspective of ease of removing the plug member, the liquid wiping portion preferably has a concave shape. Meanwhile, when the liquid wiping portion has a protruding shape, the friction between the plug member and the inner peripheral surface of the supply port is greater than when the liquid wiping portion has a concave shape, but a correspondingly larger amount of ink is wiped away. As for whether the liquid wiping portion has an R-shaped shape or an angular shape, it can be said that when ease of removing the plug member is important, the liquid wiping portion preferably has an R-shaped shape, while when the amount of ink to be wiped away is important, the liquid wiping portion preferably has an angular shape.

[0067] Furthermore, according to this modification, by providing an inclination to the rear surface 107 of each of the plug members 505 and 605, the adhering ink 108 may accumulate at a designated location (e.g., the lowest point 107A of the rear surface). The accumulated ink 108 is wiped away by liquid wiping portions 310 and 410 formed in and on the inner peripheral surface of the supply port 106, and the amount of ink wiped away is greater than when no liquid wiping portion is formed. Therefore, a liquid container that can reduce the possibility of liquid spillage or adhesion to a person's hands when the plug member of the liquid container is pulled out to open the liquid container, and a liquid spraying device including said container, can be provided.

[0068] Using the technology disclosed in this application, it is possible to provide a liquid container that can reduce the possibility of liquid spilling from the liquid container and the possibility of liquid from the plug member adhering to a person's hands, as well as a liquid spraying device including said liquid container.

[0069] Other embodiments

[0070] While the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the appended claims should be given the broadest interpretation to cover all such modifications and equivalent structures and functions.

Claims

1. A liquid container, comprising: A container body, the container body including a storage chamber configured to store liquid and a supply port configured to supply liquid to the storage chamber; as well as A plug member configured to be detachable from the container body to seal the supply port, the plug member comprising a body portion located outside the storage chamber and supply port within the container body in an attached state, and a plug portion located inside the storage chamber and supply port in the attached state, wherein... The plug portion has a press-fit portion that presses into the supply port in the attached state, and a front end portion that exposes the front end of the press-fit portion to the storage chamber in the attached state. In the attached state, the axis of the plug portion is perpendicular to the opening surface of the supply port, and In the attached state, the front end surface of the front end portion is an inclined surface that is inclined relative to the surface of the plug portion perpendicular to the axis, and the inclined surface is inclined such that the side of the inclined surface that is lower in the vertical direction protrudes in the direction of the axis relative to the side of the inclined surface that is upper in the vertical direction.

2. The liquid container according to claim 1, wherein The plug portion has a generally cylindrical shape and an outer peripheral surface, the outer peripheral surface having a first region press-fitted into the supply port and a second region exposed to the storage chamber on the front end side of the first region. The press-fit portion is the first region, and The front end portion includes the second region and the front end surface.

3. The liquid container according to claim 1 or 2, wherein The supply port is formed by the following: An external opening that leads to the exterior of the container body; An internal opening leading to a storage chamber; and The inner peripheral portion connects the outer opening to the inner opening, and The internal opening is located below the external opening.

4. The liquid container according to claim 3, wherein in the attached state, the lowest point of gravity on the inclined surface is located below the lowest point of gravity on the inner peripheral surface of the supply port in the direction of gravity.

5. The liquid container according to claim 3, wherein, assuming that in the attached state, in a cross section along the vertical direction of the axis including the plug portion, the angle formed between the first virtual line and the vertical virtual line is A, and the angle formed between the second virtual line and the vertical virtual line is B, A≥B is satisfied, wherein, The first virtual line connects the lowest point of the front surface to the point where it contacts the lowest point of the internal opening at the front portion, the vertical virtual line extends upward from the lowest point of the front surface in the vertical direction, and the second virtual line connects the lowest point of the front surface to the highest point of the front portion.

6. The liquid container of claim 3, wherein the supply port has a liquid wiping portion, wherein when the plug member is removed from the container body, the liquid wiping portion is slidably movable against a region of the front end portion of the plug member located on the side of the storage chamber rather than the side of the supply port in the attached state to wipe away the liquid.

7. The liquid container of claim 6, wherein the liquid wiping portion is a portion having a recessed or protruding shape, the portion having a recessed or protruding shape being disposed in a region at least below in the vertical direction of the inner peripheral surface forming the supply port.

8. The liquid container according to claim 3, wherein The main body of the plug component includes: The covering portion contacts the edge portion of the external opening of the supply port; A support portion that connects the cover portion to another component that is not the plug member; as well as A protruding portion that protrudes from the covering portion on the outside of the container body. The support portion is disposed on the upper side of the covering portion in the vertical direction, and The protruding portion is positioned on the lower side of the covering portion in the vertical direction.

9. A liquid jetting device, comprising: A liquid injection head that injects liquid; as well as The liquid container according to claim 1 or 2.

10. The liquid jetting device according to claim 9, further comprising: The equipment body, in which the liquid container is embedded.

11. The liquid injection device of claim 10, wherein, with the liquid container embedded in the device body, the plug member is removed from the supply port to allow liquid to be supplied from the supply port into the storage chamber.

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