CN211808467U - Ink-injection cylinder, ink tank and ink-jet printer - Google Patents

Ink-injection cylinder, ink tank and ink-jet printer Download PDF

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Publication number
CN211808467U
CN211808467U CN201921864576.7U CN201921864576U CN211808467U CN 211808467 U CN211808467 U CN 211808467U CN 201921864576 U CN201921864576 U CN 201921864576U CN 211808467 U CN211808467 U CN 211808467U
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China
Prior art keywords
ink
opening
flow path
longitudinal direction
openings
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CN201921864576.7U
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Chinese (zh)
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刑部吉记
桑山刚
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Brother Industries Ltd
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Brother Industries Ltd
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Priority to CN201921864576.7U priority Critical patent/CN211808467U/en
Priority to JP2021553621A priority patent/JP7283564B2/en
Priority to PCT/JP2020/040206 priority patent/WO2021085408A1/en
Application granted granted Critical
Publication of CN211808467U publication Critical patent/CN211808467U/en
Priority to US17/733,184 priority patent/US20220274410A1/en
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Abstract

The utility model relates to an annotate black section of thick bamboo, china ink jar and ink jet printer. The ink cartridge has a body portion extending in a longitudinal direction, the body portion having a first end and a second end opposite to the first end in the longitudinal direction, the body portion including a first flow path tube and a second flow path tube extending in the longitudinal direction, the first flow path tube having a first opening, a second opening, and a first flow path formed between the first opening and the second opening, a distance from the first opening to the first end being smaller than a distance from the second opening to the first end; the second flow path pipe is provided with a third opening, a fourth opening and a second flow path formed between the third opening and the fourth opening, and the distance from the third opening to the first end is smaller than the distance from the fourth opening to the first end; the second opening faces a lateral direction of the first flow path pipe. According to the utility model discloses an annotate an china ink section of thick bamboo through setting up the second opening to the side direction towards first flow path pipe, has restrained the formation of the meniscus of second opening part, has avoided the phenomenon of ink replenishment in-process temporary stop to take place.

Description

Ink-injection cylinder, ink tank and ink-jet printer
Technical Field
The utility model relates to a printing apparatus technical field specifically relates to an annotate black section of thick bamboo, china ink jar and ink jet printer.
Background
An inkjet printer generally performs printing by ejecting ink from a recording unit onto a recording medium (for example, printing paper).
Fig. 1 schematically shows an example of an existing ink jet printer 1. Hereinafter, for convenience of description, a direction in which the ink jet printer 1 faces the user is defined as "front" and a direction opposite thereto is defined as "rear" with reference to a position at which the user uses the ink jet printer 1, and a left-hand side of the user is defined as "left" and a right-hand side of the user is defined as "right".
As shown in fig. 1, the inkjet printer 1 includes a printer body 2 and four ink tanks 10 provided on one side (e.g., the front side) of the printer body 2. The printer body 2 includes a frame portion 3, and four ink tanks 10 are provided in the frame portion 3. One of the ink tanks 10 is disposed in the front left of the frame portion 3, and the other three ink tanks 10 are disposed side by side in the front right of the frame portion 3. The ink tank 10 is for containing ink to be supplied to the recording portion 9. The ink tanks 10 at the front of the left side may contain black ink, and the three ink tanks 10 at the front of the right side may contain cyan, magenta, and yellow inks, respectively, so that the print content of the ink jet printer 1 has a richer color. Ink may be generally injected into the ink tank 10 through an ink bottle (not shown) containing ink.
As shown in fig. 2, the ink tank 10 mainly includes an ink tank body 30 and an ink cartridge 20, and the ink cartridge 20 is detachably connected to the ink tank body 30. The ink tank body 30 may be composed of a resin material and a coating film 39.
The ink tank body 30 mainly includes an ink storage chamber 31, an ink filling portion 33, an ink supply portion 35, an atmosphere communication portion 36, and a visible surface 37 for observing the ink level. The ink reservoir chamber 31 is for accommodating ink to be supplied to the recording portion 9. The ink injection portion 33 is located at the top of the ink reservoir 31 and has an ink injection port 32. Ink can be injected into the ink tank body 30 through the ink injection port 32 so as to be contained in the ink reservoir 31. The ink supply portion 35 is located above the ink reservoir 31, and is used to supply ink in the ink reservoir 31 to the recording portion 9. The atmosphere communication portion 36 is located at a lower position of the ink tank body 30, and includes an atmosphere communication port 38, and the atmosphere communication port 38 may communicate the ink reservoir 31 with the atmosphere.
The ink cartridge 20 has a body portion 21 extending in the longitudinal direction. The body portion 21 includes a first flow path tube 40 and a second flow path tube 50 extending in the longitudinal direction L. The first flow path pipe 40 has a first opening 41, a second opening 42, and a first flow path 43 formed between the first opening 41 and the second opening 42. The second flow path tube 50 has a third opening 51, a fourth opening 52, and a second flow path 53 formed between the third opening 51 and the fourth opening 52.
The ink cartridge 20 further includes a mounting portion 22 provided outside the body portion 21. The mounting portion 22 may be integrally formed with the body portion 21. The mounting portion 22 has a hook-shaped portion protruding outward. The ink tank body 30 is provided with a rib (not shown) projecting toward the bottom of the ink reservoir 31 inside the ink reservoir 31. When installed, the ink feed barrel 20 extends through the ink feed port 32 of the ink tank body 30 into the ink reservoir 31. When the mounting portion 22 moves to the position of the rib with the ink cartridge 20, the mounting portion 22 is hooked on the rib by the hook portion. In this manner, the ink cartridge 20 is fixed to the ink tank body 30.
In a state where the ink cartridge 20 is mounted to the ink tank body 30, the first opening 41 and the third opening 51 are located above the top of the ink injection port 32, in other words, the first opening 41 and the third opening 51 are located outside the ink reservoir 31, the first opening 41 and the third opening 51 are used to communicate with an ink bottle containing ink to be injected into the ink tank, and the second opening 42 and the fourth opening 52 are located in the ink reservoir 31 and spaced apart from the bottom wall of the ink reservoir 31.
After the ink cartridge 20 is mounted on the ink tank body 30, the bottle opening of the ink bottle may be inserted into the ink filling portion 33 of the ink tank body 30 to cover the top end of the ink cartridge 20. In this way, ink in the ink bottle can enter the first flow path 43 or the second flow path 53 through the first opening 41 or the third opening 51, and then enter the ink reservoir 31 through the second opening 42 or the fourth opening 52. Meanwhile, air in the ink reservoir 31 can enter the ink bottle through the other of the first flow path 43 and the second flow path 53. In this case, the flows of ink and air are simultaneously generated in the two flow paths, respectively, and "gas-liquid replacement" is performed.
When either one of the flow of ink or the flow of air is stopped, the gas-liquid replacement process is stopped. Ideally, the priming process stops when the ink in reservoir 31 is full (the ink level reaches or is higher than the two openings of the ink cartridge 20 located in reservoir 31) or the ink in the ink bottle is completely filled into reservoir 31.
The applicant found that the ink tank 10 shown in fig. 2 is susceptible to a phenomenon in which the ink supply is temporarily stopped during actual use. That is, only a small amount of ink is filled from the ink bottle into the ink tank body 30, and when the supply is temporarily stopped, the ink bottle still contains ink, and a large amount of space in the ink reservoir 31 is still not filled with ink. The applicant speculates that, due to the ink replenishment process, the ink forms a meniscus (meniscus) at the second opening 42 and/or the fourth opening 52 of the ink cartridge 20 located in the ink reservoir 31, and particularly, the meniscus is more likely to form when a small gap (e.g., less than 2.5mm) exists between the second opening 42 and the bottom wall of the ink reservoir, which hinders further flow of the ink.
Therefore, there is a need for an ink cartridge, an ink tank and an ink jet printer that at least partially solve the above problems in the prior art.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
In order to solve the above problem, according to a first aspect of the present invention, there is provided an ink cartridge for injecting ink into an ink tank having an ink injection port, the ink cartridge having a body portion extending in a longitudinal direction, the body portion having a first end and a second end opposite to the first end in the longitudinal direction, the body portion including:
a first flow path pipe extending in the longitudinal direction, having a first opening, a second opening, and a first flow path formed between the first opening and the second opening, a distance from the first opening to the first end being smaller than a distance from the second opening to the first end; and
a second flow path tube extending in the longitudinal direction, having a third opening, a fourth opening, and a second flow path formed between the third opening and the fourth opening, a distance from the third opening to the first end being smaller than a distance from the fourth opening to the first end;
wherein the second opening faces a lateral direction of the first flow path pipe.
According to the utility model discloses an annotate an ink section of thick bamboo, through setting up the second opening to the side direction of orientation first flow path pipe, restrained the formation of the meniscus of second opening part to the phenomenon of having avoided ink supply in-process temporary stop takes place.
Optionally, the first flow path pipe includes a bent portion at the second end, the second opening is an end outlet of the bent portion, and an inner wall of the first flow path pipe is curved or bent at the bent portion.
According to the scheme, the manufacturing process of the first flow channel pipe of the ink injection cylinder is simple, the fluid (ink) flows more smoothly in the first flow channel pipe, and the phenomenon that the ink is temporarily stopped in the ink supply process is further avoided.
Optionally, the curved portion comprises a plurality of branches forming a plurality of the second openings.
According to the scheme, the fluid (ink) can flow in the first flow channel pipe through the second openings, namely, a plurality of paths for the fluid (ink) to flow are provided, the phenomenon that the ink is temporarily stopped in the ink supply process is further avoided, and the ink injection process is faster.
Optionally, the first flow path tube comprises an end wall at the second end, the second opening being provided in a side wall of the first flow path tube.
According to the scheme, the second opening is formed in the side wall of the first flow path pipe, so that the space occupied by the ink injection cylinder in the ink storage chamber is saved, the ink storage chamber can contain more ink, and the manufacturing process of the ink injection cylinder is simplified.
Optionally, the first flow path tube further comprises a fifth opening at the second end, the fifth opening facing the longitudinal direction.
According to this aspect, by providing the second opening facing the lateral direction of the first flow path tube and the fifth opening facing the longitudinal direction, the fluid (ink) is made to flow between the ink storage chamber and the first flow path tube more quickly, the generation of meniscus is suppressed, and the occurrence of a phenomenon in which the ink supply is temporarily stopped is avoided.
Optionally, the second opening is provided in plurality, and the plurality of second openings are arranged at intervals along the longitudinal direction or the circumferential direction of the first flow path pipe.
According to the scheme, the plurality of second openings are arranged according to a certain rule, so that the processing technology of the ink injection cylinder is simplified.
Optionally, the plurality of second openings are aligned along the longitudinal direction; alternatively, the plurality of second openings are all the same distance from the second end in the longitudinal direction; alternatively, at least one of the plurality of second openings is located at a different distance from the second end in the longitudinal direction than the other second openings are located at the same distance from the second end in the longitudinal direction.
According to this aspect, the fluid (ink) can be further promoted to flow between the ink storage chamber and the first flow path pipe, so that the occurrence of a meniscus is suppressed, and the occurrence of a phenomenon in which the ink supply is temporarily stopped can be avoided.
According to a second aspect of the present invention, there is provided an ink tank for an ink jet printer, the ink jet printer including a recording portion, the ink tank comprising: an ink tank body, the ink tank body comprising: an ink reservoir for containing ink to be supplied to the recording portion; the ink injection port is communicated with the ink storage chamber; and the ink cartridge of any of the preceding embodiments, the ink cartridge extending through the ink injection port, the first opening and the third opening both being located outside the ink reservoir, the first flow path communicating with the ink reservoir through the second opening, the second flow path communicating with the ink reservoir through the fourth opening.
According to the utility model discloses an ink tank sets up the side direction into towards first flow path pipe through the second opening with annotating an ink section of thick bamboo to the formation of the meniscus of second opening part has been suppressed, and then has avoided the phenomenon of ink supply in-process temporary stop to take place.
Optionally, the ink tank body includes a visible surface for observing the ink level, and the second opening faces in a direction opposite to the visible surface.
According to this aspect, the second opening is provided so as to face the direction opposite to the visible surface, so that the liquid level of the ink can be observed easily.
According to a third aspect of the present invention, there is provided an ink jet printer including a recording portion and the ink tank of any one of the foregoing embodiments.
According to the utility model discloses a printer sets up the side direction into towards first flow path pipe through the second opening with the notes china ink section of thick bamboo of its china ink jar to the formation of the meniscus of second opening part has been suppressed, and then has avoided the phenomenon of ink supply in-process temporary stop to take place.
Drawings
The above and other aspects of the present invention will become more apparent and more readily appreciated from the following description of the exemplary embodiments of the invention taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic perspective view of a conventional inkjet printer, which is also used to illustrate an external structure of the inkjet printer of the present invention;
FIG. 2 is a perspective view of an ink tank of a conventional ink jet printer;
fig. 3 is a perspective assembly view of an ink tank according to a first embodiment of the present invention;
FIG. 4 is a schematic view of an ink cartridge of an ink tank according to a second embodiment of the present invention;
fig. 5 is a schematic perspective view of an ink cartridge of an ink tank according to a third embodiment of the present invention;
fig. 6 is a schematic perspective view of an ink cartridge of an ink tank according to a fourth embodiment of the present invention;
fig. 7 is a schematic view of an ink cartridge of an ink tank according to a fifth embodiment of the present invention; and
fig. 8 is a schematic view of an ink cartridge of an ink tank according to a sixth embodiment of the present invention.
Description of the reference numerals
An ink jet printer: 1/100 Printer body: 2/102
Frame portion: 3/103 recording part: 9/109
An ink tank: 10/110 ink-filling cylinder: 20/120/220/320/420/520/620
A body part: 21/121/221/321/421/521/621
Mounting part: 22/122/222/322/422/522/622
A first end: 23/123/223/323/423/523/623
A second end: 24/124/224/324/424/524/624
A first flow path pipe: 40/140/240/340/440/540/640
A first opening: 41/341/541/641
A second opening: 42/142/242/342/442/542/642/642'
A first flow path: 43 second flow path pipe: 50/150/250/450
A third opening: 51/151/251/351 fourth opening: 52/152/252
A second flow path: 53 ink tank body: 30/130
An ink injection part: 33/133 ink reservoir: 31/131
An ink injection port: 32/132 ink supply part: 35/135
Atmosphere communicating part: 36/136 visual recognition surface: 37/137
An atmosphere communication port: 38/138 buffer chamber: 34/134
Film covering: 39/139 resin frame: 119
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the terms "upper", "lower", and the like are used herein for purposes of illustration only and are not to be construed as limiting.
Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, e.g., a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".
An ink jet printer according to a preferred embodiment of the present invention will be described in detail below. The ink jet printer according to the present invention has substantially the same configuration as the ink jet printer 1 according to the background art. Ink jet printer in addition to having the printing function, can also have various functions such as image scanner function, facsimile function, copying function. As for the printing function, a double-sided image recording function of recording images on both sides of the recording medium may be provided. Of course, the function other than the printing function is arbitrary.
As shown in fig. 1, the inkjet printer 100 includes a printer body 102 and an ink tank 110.
The printer body 102 is substantially rectangular parallelepiped in shape. The printer body 102 is provided with a paper feed cassette for feeding a recording medium and a paper discharge cassette for discharging the recording medium. The printer body 102 is also provided with a recording portion 109 including a plurality of nozzles, for example, and the recording portion 109 can eject ink onto a recording medium. An operation panel on which a display unit for displaying various information and setting contents and operation keys for performing various operations or inputting setting contents are arranged may be further provided on the upper surface of the printer body 102. In some embodiments, the display unit may not be provided, and only some of the operation keys may be provided, and these operation keys may be provided at appropriate positions of the printer body 102, for example, on the front surface.
The ink jet printer 100 preferably includes 4 ink tanks 110, wherein one ink tank 110 is provided at the left front portion of the printer body 102, which is generally used to contain black ink, and the other three ink tanks 110 are provided at the right front portion of the printer body 102, which are used to contain three color inks of cyan, magenta, and yellow, respectively, from left to right, so that the ink jet printer 100 can record a color image using four color inks of black, cyan, magenta, and yellow. The printer body 102 includes a frame portion 103, and four ink tanks 110 are provided in the frame portion 103. Of course, it is understood that other numbers of ink tanks 110 may be provided, and that the ink tanks 110 may be provided at other locations of the printer body 102, as desired. Further, the ink tanks 110 may be fixedly mounted to the printer body 102, or may be configured to be detachably mounted to the printer body 102, as the actual need arises.
The ink tank 110 mainly includes an ink tank body 130 and an ink feed cylinder 120, and the ink feed cylinder 120 is detachably or inseparably connected to the ink tank body 130. The ink tank body 130 mainly includes an ink reservoir 131, an ink filling portion 133, an ink supply portion 135, an atmosphere communication portion 136, an atmosphere communication port 138, and a visible surface 137 for observing the ink level. The buffer chamber 134 is located below the ink reservoir 131, and communicates with the ink reservoir 131 through a fine flow path (not shown). The atmosphere communication portion 136 is provided at the top of the buffer chamber 134, and has a passage therein that communicates with the buffer chamber 134. An opening of one end of an atmosphere communication pipe (not shown) may be used to connect with the atmosphere communication portion 136, and an opening of the other end of the atmosphere communication pipe may be provided in the vicinity of the ink filling portion 133. This causes the atmosphere communication portion 136 to communicate with the outside of the ink tank body 130 via the opening of the other end portion of the atmosphere communication pipe.
The ink tank 110 may have the same structure as the ink tank 10 shown in fig. 2, and specific reference may be made to the description related to the background art.
The ink tank body 130 may be composed of a resin material and a coating film 139. Specifically, the resin frame 119 constituting the main body of the ink tank body 130 may be formed in a mold by injection molding using a resin material. The resin frame 119 is provided with a plurality of chambers for forming internal spaces of the ink reservoir 131 and the buffer chamber 134. The above-described cavity has a lateral opening to facilitate separation of the resin frame 119 from the mold. The cover film 139 is then attached to the resin frame 119 by a connecting means such as bonding or the like and covers the lateral openings of the chambers to form the ink reservoir 131 and passages for communicating the plurality of buffer chambers 134. Is connected to the other side of the resin frame 119 through another coating film (not shown) to form a buffer chamber 134.
The ink cartridge 120 further includes a mounting portion 122 provided outside the body portion 121. When the ink cartridge 120 is assembled to the ink tank body 130 as shown in fig. 3, the second end 124 of the body portion 121 of the ink cartridge 120 extends through the ink filling port 132 of the ink tank body 130 to protrude into the ink reservoir 131. The ink tank body 130 is provided with a restricting portion (not shown). The mounting portion 122 engages with the restricting portion, and mounting and fixing of the ink cartridge 120 with respect to the ink tank body 130 is achieved.
In the illustrated embodiment, the mounting portion 122 has an outwardly projecting hook portion. The limiting section can be configured as a rib accordingly. The mounting portion 122 and the restricting portion are engaged by hooking the hook portion on the rib. Of course, in other embodiments, the mounting portion 122 and the limiting portion may be engaged by other means, such as by a snap-fit or snap-in engagement. The ink cartridges according to the first to sixth embodiments of the present invention will be described in detail with reference to fig. 3 to 8, respectively.
First embodiment
Fig. 3 shows an ink cartridge 120 according to a first embodiment of the present invention. The ink cartridge 120 has a body portion 121 extending in the longitudinal direction L, the body portion having a first end 123 and a second end 124 opposite the first end 123 in the longitudinal direction L.
The body portion 121 includes a first flow path tube 140 and a second flow path tube 150. The first flow path pipe 140 and the second flow path pipe 150 may be integrally formed as a single piece or may be provided separately.
As shown in fig. 3, the first flow path pipe 140 extends in the longitudinal direction L, and has a first opening (not shown in the figure) at the first end 123, a second opening 142 near the second end 124, and a first flow path (not shown in the figure) formed between the first opening and the second opening 142. It is apparent that the distance from the first opening to the first end 123 is less than the distance from the second opening 142 to the first end.
Similarly, the second flow path tube 150 extends in the longitudinal direction L, and has a third opening 151 located at the first end 123, a fourth opening 152 located between the first end 123 and the second end 124, and a second flow path (not shown in the drawings) formed between the third opening 151 and the fourth opening 152, and the distance from the third opening 151 to the first end 123 is smaller than the distance from the fourth opening 152 to the first end 123.
In order to avoid the formation of a meniscus at the second opening 142, the second opening 142 is disposed toward the lateral side of the first flow path tube 140. Specifically, as shown in fig. 3, the first flow path tube 140 includes a bent portion 170 at the second end 124, the second opening 142 is an end outlet of the bent portion 170, and an inner wall of the first flow path tube 140 is curved at the bent portion 170. Of course, the inner wall of the first flow path pipe 140 may have a bent surface at the bent portion 170. In the present embodiment, the second opening 142 protrudes out of the sidewall of the first flow path pipe 140.
The second opening 142 may be provided to have at least 2 corners. It is understood that the second opening 142 may be surrounded by the arc-shaped wall and the straight wall of the first flow path pipe 140, and thus, have 2 corners. In other embodiments hereinafter, the second opening may be a quadrilateral opening having 4 corners.
The second opening 142 may be disposed to face in a direction opposite the viewing surface 137 when the ink cartridge 120 is mounted on the ink tank body 130. For example, in fig. 3, the visual recognition surface 137 faces forward, and the second opening 142 may be provided to face rearward. In the ink filling, a bottle mouth of the ink bottle may be inserted into the ink filling portion 133 of the ink tank body 130 to cover the top end of the ink filling barrel 120. When the ink is injected through the ink injection tube 120, "gas-liquid replacement" similar to that described in the background art occurs, but since the second opening 142 is directed in the lateral direction (toward the "rear" direction in fig. 3), the space is wide and a meniscus is not easily formed, so that the ink can smoothly flow out from the second opening 142.
In summary, by disposing the second opening 142 to face the side of the first flow path pipe 143, the formation of a meniscus at the second opening 142 is suppressed, and the flow of ink in the first flow path pipe 140 is made smoother, thereby avoiding the occurrence of a temporary stop in the ink replenishment process.
Second embodiment
Fig. 4 shows an ink cartridge 220 according to a second embodiment of the present invention. The ink cartridge 220 has a body portion 221 extending in the longitudinal direction L, the body portion 221 having a first end 223 and a second end 224. The body portion 221 includes a first flow path tube 240 and a second flow path tube 250 extending in the longitudinal direction L. The first flow path pipe 240 has a first opening (not shown), a second opening 242, and a first flow path (not shown) formed between the first opening and the second opening 242. The second flow channel pipe 250 has a third opening 251, a fourth opening 252, and a second flow channel (not shown in the drawings) formed between the third opening 251 and the fourth opening 252.
Ink-feed cartridge 220 according to the second embodiment may have substantially the same configuration as ink-feed cartridge 120 according to the first embodiment, except for the configuration at second end 224, and therefore, for brevity of description, only the distinguishing features will be described in detail herein. It is understood that the same is true for the ink cartridges according to the third to sixth embodiments. As shown in fig. 4, the first flow path tube 240 includes a bend 270 at the second end 124. The bend 270 includes 2 legs, the 2 legs forming 2 second openings 242. The number of the branches can also be 3, 4 and the like, and each branch correspondingly forms the second opening.
Therefore, the second openings 242 face the lateral direction of the first flow channel tube 240, and the fluid can flow in the first flow channel tube 240 through the plurality of second openings 242, that is, a plurality of branches for fluid circulation are provided, so that the phenomenon of temporary stop in the ink supply process is avoided, and the ink filling process is faster.
Third embodiment
Fig. 5 shows an ink cartridge 320 according to a third embodiment of the present invention. Ink cartridge 320 has a body portion 321 extending in longitudinal direction L, body portion 321 having a first end 323 and a second end 324. The body portion 321 includes a first flow path pipe 340 and a second flow path pipe (not shown in the drawings) extending in the longitudinal direction L. The first flow path pipe 340 has a first opening 341, a second opening 342, and a first flow path (not shown in the drawings) formed between the first opening 341 and the second opening 342. The second flow channel pipe has a third opening 351, a fourth opening (not shown in the figure), and a second flow channel (not shown in the figure) formed between the third opening 351 and the fourth opening.
In this embodiment, the first flow path tube 340 includes an end wall 371 at the second end 324, and the second opening 342 is provided on a side wall of the first flow path tube 340. It can be understood that the second opening 342 is directly formed on the sidewall of the first flow path pipe 340, that is, a part of the sidewall of the first flow path pipe 340 is removed to form the second opening 342. The second opening 342 in this embodiment does not protrude out of the sidewall of the first flow path pipe 340 like the second opening 142 shown in fig. 3 or the second opening 242 shown in fig. 4.
As shown in fig. 5, the second opening 342 of the present embodiment communicates with an end wall 371. It will also be appreciated that the side wall edges of the first flow path tube 340 defining the second opening 342 are joined to the end wall 371 to collectively define an opening for the passage of ink. Specifically, the second opening 342 has 2 corners formed by the side walls of the first flow path pipe 340, and also has 2 corners formed by the side walls of the first flow path pipe 340 and the end wall 371.
Thus, the first flow path pipe 340 includes the end wall 371 at the second end 324, and the second opening 342 is disposed on the side wall of the first flow path pipe 340, which not only saves the space occupied by the ink filling cylinder 320 in the ink storage chamber, enables the ink storage chamber to contain more ink, but also makes the manufacturing process of the ink filling cylinder 320 simpler.
Fourth embodiment
Fig. 6 shows an ink cartridge 420 according to a fourth embodiment of the present invention. The ink cartridge 420 has a body portion 421 extending in the longitudinal direction L, the body portion 421 having a first end 423 and a second end 424. The body portion 421 includes a first flow path tube 440 and a second flow path tube 450 extending in the longitudinal direction L. The first flow path pipe 440 has a first opening (not shown), a second opening 442, and a first flow path formed between the first opening and the second opening 442. The second flow tube 450 has a third opening (not shown), a fourth opening (not shown), and a second flow path (not shown) formed between the third opening and the fourth opening.
In this embodiment, the first flow path tube 440 further includes a fifth opening 472 at the second end 424, the fifth opening 472 facing the longitudinal direction L. The second opening 442 may also be provided in communication with a fifth opening 472, as with the third embodiment. Thus, by providing the second opening 442 facing the lateral direction of the first flow path tube 440 and the fifth opening 472 facing the longitudinal direction L, fluid is more quickly circulated between the ink reservoir and the first flow path tube 440, the occurrence of meniscus is suppressed, and the occurrence of a temporary stop during the ink supply process is avoided.
Fifth embodiment
Fig. 7 shows an ink cartridge 520 according to a fifth embodiment of the present invention. Ink cartridge 520 has a body portion 521 extending in longitudinal direction L, body portion 521 having a first end 523 and a second end 524. The body portion 521 includes a first flow path pipe 540 and a second flow path pipe (not shown in the drawings) extending in the longitudinal direction L. The first flow path pipe 540 has a first opening 541, a second opening 542, and a first flow path (not shown) formed between the first opening 541 and the second opening 542. The second flow tube has a third opening (not shown in the figure), a fourth opening (not shown in the figure), and a second flow path (not shown in the figure) formed between the third opening and the fourth opening.
In the present embodiment, there are a plurality of (two shown in fig. 7) second openings 542. The 2 second openings 542 are provided on the side wall of the first flow path pipe 540. The plurality of second openings 542 are provided at intervals in the longitudinal direction L. Preferably, the plurality of second openings 542 are aligned along the longitudinal direction L (see fig. 7). In addition, in the longitudinal direction L, the intervals between two adjacent second openings 542 may be the same or different. The term "different" as used herein is understood to mean that each of the plurality of pitches formed by the plurality of second openings 542 is different, or that at least one of the plurality of pitches is different from the others. Of course, the plurality of second openings may not be aligned along the longitudinal direction L.
In the ink cartridge 520 of the present embodiment, it may have an end wall like the end wall 371 of the third embodiment (see fig. 5), or may have an opening like the fifth opening 472 of the fourth embodiment (see fig. 6).
Sixth embodiment
Fig. 8 shows an ink cartridge 620 according to a sixth embodiment of the present invention. The ink cartridge 620 has a body portion 621 extending in the longitudinal direction L, the body portion 621 having a first end 623 and a second end 624. The body portion 621 includes a first flow path pipe 640 and a second flow path pipe (not shown in the drawings) extending in the longitudinal direction L. The first flow path pipe 640 has a first opening 641, a second opening 642, and a first flow path (not shown) formed between the first opening 641 and the second opening 642. The second flow tube has a third opening (not shown in the figure), a fourth opening (not shown in the figure), and a second flow path (not shown in the figure) formed between the third opening and the fourth opening.
In the present embodiment, there are a plurality of (two shown in fig. 8) second openings 642. The 2 second openings 642 are each provided on the side wall of the first flow path pipe 640. The plurality of second openings 642 are provided at intervals in the circumferential direction of the first flow path pipe 640. Preferably, the plurality of second openings 642 are all the same distance from the second end 624 in the longitudinal direction L. Further preferably, the plurality of second openings 642 are uniformly spaced in the circumferential direction. Of course, each of the plurality of pitches formed by the plurality of second openings 642 in the circumferential direction may be different, or at least one of the plurality of pitches may be different from the others. Of course, at least one second opening 642' of the plurality of second openings may have a different distance from the second end 624 in the longitudinal direction L than the other second openings 642 in the longitudinal direction L. The distance of the second opening 642 or 642' from the second end 624 in the longitudinal direction L may be understood as the shortest distance from the plane in which the end face of the second end 624 lies.
In the ink cartridge 620 of the present embodiment, it may have an end wall like the end wall 371 of the third embodiment (see fig. 5), or may also have an opening like the fifth opening 472 of the fourth embodiment (see fig. 6).
In short, the technical features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Furthermore, the utility model also provides an ink tank, it includes any kind of above-mentioned notes china ink section of thick bamboo.
According to the utility model discloses an ink tank sets up the side direction into towards first flow path pipe through the second opening with annotating an ink section of thick bamboo to the formation of the meniscus of second opening part has been suppressed, and then has avoided the phenomenon of ink supply in-process temporary stop to take place.
Furthermore, the utility model discloses still provide an ink jet printer, it includes recording part and any kind of china ink jar of above-mentioned.
According to the utility model discloses an ink jet printer sets up the side direction into towards first flow path pipe through the second opening with the notes china ink section of thick bamboo of its china ink jar to the formation of the meniscus of second opening part has been suppressed, and then has avoided the phenomenon of ink supply in-process temporary stop to take place.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that many more modifications and variations can be made in accordance with the teachings of the present invention, all of which fall within the scope of the invention as claimed.

Claims (10)

1. An ink cartridge for injecting ink into an ink tank having an ink injection port, the ink cartridge having a body portion extending in a longitudinal direction, the body portion having a first end and a second end opposite the first end in the longitudinal direction, the body portion comprising:
a first flow path pipe extending in the longitudinal direction, having a first opening, a second opening, and a first flow path formed between the first opening and the second opening, a distance from the first opening to the first end being smaller than a distance from the second opening to the first end; and
a second flow path tube extending in the longitudinal direction, having a third opening, a fourth opening, and a second flow path formed between the third opening and the fourth opening, a distance from the third opening to the first end being smaller than a distance from the fourth opening to the first end;
wherein the second opening faces a lateral direction of the first flow path pipe.
2. The ink cartridge of claim 1, wherein: the first flow path pipe comprises a bent part positioned at the second end, the second opening is an end outlet of the bent part, and the inner wall of the first flow path pipe is a curved surface or a bent surface at the bent part.
3. The ink cartridge of claim 2, wherein: the curved portion includes a plurality of branches forming a plurality of the second openings.
4. The ink cartridge of claim 1, wherein: the first flow path tube includes an end wall at the second end, and the second opening is provided on a side wall of the first flow path tube.
5. The ink cartridge of claim 1, wherein: the first flow path tube further includes a fifth opening at the second end, the fifth opening facing the longitudinal direction.
6. The ink cartridge according to any one of claims 2, 4 and 5, wherein: the second opening is plural, and the plural second openings are provided at intervals in the longitudinal direction or the circumferential direction of the first flow path pipe.
7. The ink cartridge of claim 6, wherein:
the plurality of second openings are aligned along the longitudinal direction; or,
the plurality of second openings are all the same distance from the second end along the longitudinal direction; or,
at least one of the plurality of second openings is at a different distance from the second end in the longitudinal direction than the other of the second openings.
8. An ink tank for an ink jet printer including a recording portion, characterized by comprising:
an ink tank body, the ink tank body comprising:
an ink reservoir for containing ink to be supplied to the recording portion; and
an ink injection port in communication with the ink reservoir; and
the ink cartridge of any of claims 1-7, the ink cartridge extending through the ink injection port, the first and third openings each being located outside of the ink reservoir, the first flow path communicating with the ink reservoir through the second opening, the second flow path communicating with the ink reservoir through the fourth opening.
9. The ink tank as claimed in claim 8, wherein: the ink tank body includes a visible surface for observing a liquid level of the ink, and the second opening faces a direction opposite to the visible surface.
10. An ink jet printer characterized by comprising a recording portion and the ink tank according to claim 8 or 9.
CN201921864576.7U 2019-10-31 2019-10-31 Ink-injection cylinder, ink tank and ink-jet printer Active CN211808467U (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201921864576.7U CN211808467U (en) 2019-10-31 2019-10-31 Ink-injection cylinder, ink tank and ink-jet printer
JP2021553621A JP7283564B2 (en) 2019-10-31 2020-10-27 Ink injection cylinder, ink tank, inkjet printer equipped with them
PCT/JP2020/040206 WO2021085408A1 (en) 2019-10-31 2020-10-27 Ink injection cylinder, ink tank, and inkjet printer in which ink injection cylinder and ink tank are installed
US17/733,184 US20220274410A1 (en) 2019-10-31 2022-04-29 Ink injection cylinder, ink tank, and inkjet printer equipped with the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921864576.7U CN211808467U (en) 2019-10-31 2019-10-31 Ink-injection cylinder, ink tank and ink-jet printer

Publications (1)

Publication Number Publication Date
CN211808467U true CN211808467U (en) 2020-10-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921864576.7U Active CN211808467U (en) 2019-10-31 2019-10-31 Ink-injection cylinder, ink tank and ink-jet printer

Country Status (1)

Country Link
CN (1) CN211808467U (en)

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