WO2014121637A1

WO2014121637A1 - Ink cartridge

Info

Publication number: WO2014121637A1
Application number: PCT/CN2013/089099
Authority: WO
Inventors: 陈伟健; 梁月丹
Original assignee: 珠海纳思达企业管理有限公司
Priority date: 2013-02-06
Filing date: 2013-12-11
Publication date: 2014-08-14
Also published as: CN203093328U; JP3190113U

Abstract

Provided is an ink cartridge detachably mounted on an ink-jet printer. The ink-jet printer comprises a plurality of device-side terminals (25) and a rod piece (22), wherein when an ink cartridge (10) is mounted on the ink-jet printer, the device-side terminals (25) can exert an elastic force onto the ink cartridge (10), and the rod piece (22) can move relative to the ink-jet printer. The ink cartridge (10) comprises: an ink cartridge body (101), an ink chamber (102) for containing ink being arranged inside the ink cartridge body; and a snap-fitting device (109) which is arranged on the upper portion of the ink cartridge body (101). The snap-fitting device (109) comprises a snap-fitting portion (1091) extending out towards the outside of the ink cartridge body, the snap-fitting portion (1091) being mated with an engagement portion arranged on the ink-jet printer so as to fix the ink cartridge. The snap-fitting device is arranged on the upper portion of one side of the ink cartridge body and is provided with the snap-fitting portion used for mating with the engagement portion arranged on the ink-jet printer, and a mating part which is arranged on the existing ink cartridge and mated with a mating component of the rod piece of the ink-jet printer is eliminated, thereby facilitating a user in mounting or dismounting the ink cartridge.

Description

Mo Yan Technology Field

This invention relates to ink jet printing technology, and more particularly to an ink cartridge. Background technique

Printers, especially inkjet printers, are increasingly used on the market. Wherein, the ink cartridge for supplying ink for the printing of the ink jet printer is usually detachably mounted on the recording head of the printer, and most of the printers need to make the recording head and the ink cartridge in the main scanning direction during the printing process ( Reciprocating in a direction perpendicular to the paper output direction to form a character or image on the paper. Therefore, in order to ensure print quality and a stable ink supply, the positioning of the ink cartridge relative to the recording head or the recording head unit is very important. In addition, the positioning of the ink cartridge is particularly important especially when providing a personal ink jet printer which is relatively small in size and which is relatively simple to handle/detach the ink cartridge.

U.S. Patent No. 8,297,739 discloses an ink supply system: Each of the ink cartridge mounting portions on the printer includes a lever member that moves when the ink cartridge is loaded into the printer, and a mating position is provided on the member. Correspondingly, a protruding first restricting portion is disposed on the side wall of the ink cartridge, and the first restricting portion is provided with a fitting portion. When the ink cartridge is loaded into the printer, the fitting portion of the ink cartridge cooperates with the mating position on the rod to fix Ink cartridge. When the ink cartridge is disassembled, it is only necessary to push the lever to release the cooperation between the fitting portion of the first restricting portion and the mating position on the lever member, and the ink cartridge can be taken out.

However, in order to reduce the size of the printer, the space on the mounting portion of the ink cartridge is set small, so that a large force is required for the ink cartridge to be loaded, so that the matching portion of the upper portion and the matching portion of the rod are matched with each other. It is also necessary to use a large force to push the rod to release the cooperation between the two. Therefore, the existing ink cartridge is difficult to install or remove the ink cartridge. SUMMARY OF THE INVENTION The present invention provides an ink cartridge for solving the technical drawbacks of the prior art that the ink cartridge is difficult to install or disassemble.

The present invention provides an ink cartridge detachably mounted on an inkjet printer, wherein the inkjet printer includes a plurality of device side terminals and a lever member, wherein when the ink cartridge is mounted on the inkjet When the printer is in use, the device-side terminal may apply an elastic force to the ink cartridge, and the rod member may move relative to the inkjet printer, the ink cartridge comprising: an ink cartridge body having an ink chamber containing ink therein a snapping device disposed at an upper portion of the ink cartridge body;

The engaging means includes an engaging portion that protrudes toward the outside of the ink cartridge main body, and the engaging portion cooperates with a joint portion provided in the ink jet printer to fix the ink cartridge.

Preferably, the engaging portion cooperates with a joint portion provided on the ink jet printer and positioned on at least one side of the rod member to fix the ink cartridge.

Preferably, the engaging portion is engaged with a joint portion provided on the ink jet printer and positioned on both sides of the rod member to fix the ink cartridge.

In the ink cartridge as described above, preferably, the joint portion is at least one wall surface of the rod member. In the ink cartridge as described above, preferably, the engaging portion is a card slot provided on the ink jet printer and located on at least one side of the rod member; the engaging portion includes a card slot for engaging with the card slot The hook of the combination.

Preferably, the engaging device further includes a rotating shaft, and the engaging portion is rotatable about the rotating shaft.

The ink cartridge as described above, preferably, the engaging portion further includes a connecting body connecting the hooks, and the rotating shaft is connected to the connecting body and disposed on both sides of the ink cartridge main body The shaft holes on the two support sheets extending outwardly are matched.

Preferably, the engaging device further includes an elastic member, and an upper end of the elastic member abuts against the connecting body, and a lower end of the elastic member abuts against the ink cartridge main body.

In the ink cartridge as described above, preferably, the engaging portion is further provided with an abutting surface opposite to the rod member of the ink jet printer, and the abutting surface can be abutted against the rod member to release the The engagement between the engaging portion and the card slot is described.

In the ink cartridge as described above, preferably, the engaging portion is a friction generating member.

In the ink cartridge as described above, preferably, the ink cartridge main body is further provided with a circuit substrate, the circuit substrate is provided with a plurality of terminals, and the plurality of terminals are used for a plurality of device sides of the inkjet printer The terminals are respectively abutted to establish an electrical connection, and the circuit substrate is disposed obliquely with respect to the upper and lower surfaces of the ink cartridge main body.

In the ink cartridge as described above, preferably, a side surface of the ink cartridge main body is further provided with a projection that engages with a buckle of the ink jet printer. In the ink cartridge as described above, preferably, the engaging portion is a claw-shaped portion that extends from at least one side surface of the ink cartridge main body toward the outside of the ink cartridge and is integrally formed with the ink cartridge main body.

The ink cartridge provided by the present invention is provided with an engaging device on the upper portion of the ink cartridge main body, the engaging device having an engaging portion for engaging with the engaging portion on the printer, and canceling the cooperation with the lever of the printer provided on the existing ink cartridge The mating mating parts of the components ensure that even if the space of the cartridge mounting portion is small, it is convenient for the user to mount or disassemble the cartridge. DRAWINGS

1 is a schematic structural view of an ink cartridge mounting portion of a printer according to an embodiment of the present invention; FIG. 2 is a perspective view showing a view of an ink cartridge according to an embodiment of the present invention;

Figure 3 is a perspective view showing another perspective of the ink cartridge shown in Figure 2;

Figure 4 is a schematic exploded view of the ink cartridge shown in Figures 2 and 3;

Figure 5 is a schematic view showing the internal structure of the ink cartridge shown in Figures 2-4;

Figure 6 is a schematic exploded view of the first type of engaging device provided by the embodiment of the present invention; Figure 7 is a schematic view showing the state of engagement between the engaging device shown in Figure 6 and the printer; Figure 8 is a view of the engaging device shown in Figure 6 A schematic diagram of the state of the disengagement relationship between the device and the printer;

Figure 9 is another schematic view showing the disengagement relationship between the engaging device shown in Figure 6 and the printer;

10 is a schematic exploded view showing the structure of a gas control valve of an ink cartridge provided by the present invention;

11 is a schematic structural view of a second type of engaging device according to an embodiment of the present invention; and FIG. 12 is a schematic view showing a state of disengagement between the engaging device and the printer shown in FIG.

FIG. 13 is a schematic structural diagram of a third type of engaging device according to an embodiment of the present invention; FIG. 14 is a schematic structural view of a fourth type of engaging device according to an embodiment of the present invention; FIG. 16 is a schematic structural view of a printer lever according to an embodiment of the present invention. detailed description

In order to more clearly describe the technical solution in the embodiment, the following applies to the following embodiments. The structure of the printer is described. In inkjet printing technology, the ink cartridge needs to be mounted on the printer to supply ink to the printer for printing operations. To this end, the printer is provided with an ink cartridge mounting portion for accommodating the ink cartridge.

1 is a schematic view showing the structure of an ink cartridge mounting portion of a printer to which the embodiment of the present invention is applied. As shown in Fig. 1, the ink cartridge mounting portion 20 has an ink cartridge accommodating chamber. The ink cartridge accommodating chamber is provided with a plurality of device side terminals 25 and a rod member 22, and the rod member 22 is provided with a slit-like fitting portion 221. Among them, the plurality of device side terminals 25 are constituted by elastic members, and the lever member 22 can be designed to be rotatable around the fulcrum on the ink cartridge mounting portion 20 by a certain angle. When the ink cartridge is mounted on the printer, that is, mounted on the ink cartridge mounting portion 20, since the ink cartridge presses the plurality of device side terminals 25, the plurality of device side terminals 25 can apply an elastic force to the ink cartridge, and since the ink cartridge is loaded The rod member 22 is abutted so that the rod member 22 moves relative to the cartridge mounting portion 20 as the cartridge is loaded, i.e., rotates a certain angle about the fulcrum. Further, a position of the ink cartridge mounting portion 20 opposite to the rod member 22 is further provided with a bayonet 21. The lever member 22 has a joint portion on at least one side thereof. In the present embodiment, the joint portion is a card slot 23. One of ordinary skill in the art will appreciate that the joints described above can also be other structures, such as projections, or other configurations that can be mated.

Further, Fig. 16 is a schematic view showing the structure of a rod in the ink cartridge mounting portion of the printer to which the embodiment of the present invention is applied. As shown in FIG. 16, the rod member 22 is provided with two opposite side walls 222 and 223 and a rear wall 224, and a part of the rear wall 224 protrudes from the receiving cavity to facilitate the user to apply a force to the rod member 22; The rod member 22 is further provided with an inner wall 225 opposite to the inside of the ink cartridge accommodating chamber.

2 is a perspective view of the ink cartridge according to an embodiment of the present invention; FIG. 3 is a perspective view of the ink cartridge of FIG. 2; FIG. 4 is a schematic exploded view of the ink cartridge shown in FIG. 2 and FIG. FIG. 6 is a schematic exploded view of the first type of engaging device according to the embodiment of the present invention; FIG. 7 is a schematic view showing the state of engagement between the engaging device and the printer shown in FIG. FIG. 8 is a schematic view showing a state in which the engaging device shown in FIG. 6 is disengaged from the printer; FIG. 9 is another schematic view showing the disengagement relationship between the engaging device and the printer shown in FIG. 6.

As shown in FIG. 9, the ink cartridge 10 provided in this embodiment is detachably mounted on an inkjet printer, wherein the inkjet printer includes a plurality of device side terminals 25 and a lever member 22, wherein when the ink cartridge 10 is mounted on the spray In the case of an ink printer, the device-side terminal 25 can apply an elastic force to the ink cartridge 10, and the lever member 22 can be moved relative to the inkjet printer. The ink cartridge 10 includes: an ink cartridge main body 101 having an ink contained therein. The ink chamber 102; the engaging device 109 is disposed at an upper portion of the ink cartridge main body 101.

The engaging device 109 includes an engaging portion 1091 that protrudes toward the outside of the ink cartridge main body 101, and the engaging portion

The 1091 cooperates with a joint provided at the printer to fix the ink cartridge.

The side wall of the ink container main body 105 is provided with a projection 107 for engaging with a bayonet on the printer.

The engaging portion 1091 is configured to fix the ink cartridge by cooperating with the engaging portion provided on the printer.

10.

The ink cartridge 10 may be composed of a plastic body and a lid, and the casing and the lid may be integrally connected by heat welding or friction welding to form a chamber inside.

Specifically, the ink cartridge main body 101 of the ink cartridge 10 includes a top surface 1011, a bottom surface 1012 opposite to the top surface 1011, a left side surface 1013, and a right side surface 1014 opposite to the left side surface 1013, a front side surface 1015, and a rear side opposite to the front side surface. The ink chamber 102 inside the ink cartridge main body 101 is used for storing ink supplied to the printer; the bottom surface 1012 is provided with an ink outlet 103 for conveying the ink stored in the ink chamber 102 to the printer for The printer's print consumption.

In this embodiment, the engaging device 109 can be disposed on the top surface 1011 of the ink cartridge main body 101, and the engaging portion 1091 of the engaging device 109 protrudes toward the outer surface of the ink cartridge main body 101 toward the right side surface 1014. When the ink cartridge 10 is loaded In the printer, the engaging device 109 can fix the ink cartridge 10 in cooperation with the remaining positions of the ink cartridge mounting portion 20 of the printer except the lever member 22. Specifically, the engaging portion on the printer can be disposed on the printer and located at the lever member 22. The latching portion 1091 of the engaging device 109 engages with the latching groove 23 of at least one side of the lever member 22, and preferably, the engaging portion 1091 includes a latching portion 23 for engaging with the latching slot 23 The hook 1095 secures the ink cartridge by the cooperation between the hook 1095 and the card slot 23. The hook 1095 is for engaging with the card slot 23. The number of the card slots 23 may be one or more, which may be determined according to the specific needs of the actual installation. In this embodiment, the number of the card slots 23 may be two, and the two card slots 23 are respectively formed on both sides of the rod 22 Correspondingly, the number of the hooks 1095 may also be two, and the two hooks 1095 are respectively engaged with the two card slots 23 on both sides of the rod 22 to fix the ink cartridge 10. That is, the engaging portion can cooperate with the engaging portion provided on the printer and located on both sides of the above-mentioned lever member 22 to fix the ink cartridge. It should be understood by those skilled in the art that the engaging portion 1091 and the card slot 23 can have other shapes as long as they are two structures that can cooperate with each other, such as a birch structure. And the number of the engaging portion and the engaging portion should correspond to each other.

Further, the engaging device 109 further includes a rotating shaft 1093, and the engaging portion 1091 can rotate around the rotating shaft 1093. Turn.

Specifically, the ink cartridge main body 101 is provided with two support pieces 117 extending outward along the two side faces 1015 and 1016 of the ink cartridge main body 101. The two support pieces 117 are arranged in parallel and spaced apart, and the support piece 117 has a position thereon. Corresponding shaft hole 110, the rotating shaft 1093 cooperates with the shaft hole 110 to enable the engaging portion 1091 to rotate about the rotating shaft 1093. The engaging device 109 is disposed between the two support pieces 117. The two support pieces 117 may be two surfaces that extend outward along the front side 1015 and the rear side 1016 of the ink cartridge 10.

Preferably, in this embodiment, the engaging portion 1091 further includes a connecting body 1094 integrally formed with the hook 1095; and the connecting body 1094 is connected to the ink cartridge main body 101. Wherein, the rotating shaft 1093 can be connected with the connecting body 1094 of the engaging portion 1091; and the engaging portion 109 can be rotated about the rotating shaft 1093. Preferably, in order to simplify the production process and the assembly step, the rotating shaft 1093 can be integrally formed with the connecting body 1094, that is, the rotating shaft 1093 is formed on both sides of the connecting body 1094. One of ordinary skill in the art will appreciate that the shaft 1093 can also be separately formed and assembled with the engaging portion 109. The rotating shaft 1093 can cooperate with the two opposite shaft holes 110 provided on the supporting piece 117 to fix the engaging portion 1091, and the engaging portion 1091 can be rotated about the shaft. It will be understood by those skilled in the art that the connecting body and the hook may be independent of each other and connected by integral parts through the mating structure.

In addition, a pressing button 1092 is disposed on the upper portion of the connecting body 1094, and the pressing button 1092 protrudes from the connecting body 1094; and an abutting surface opposite to the rod 22 is further disposed between the two opposite hooks 1095, and the abutting surface is located The side of the connector 1094 is located between the two hooks 1095, and the abutting surface is opposed to the rod 22 after the ink cartridge 10 is loaded into the printer.

As shown in Figs. 1, 7, and 8, when the ink cartridge 10 is loaded into the printer, the projection 107 first engages with the bayonet 21 on the cartridge mounting portion 20, and the engaging portion 109 is positioned above the edge of the lever member 22. Then, with the matching point of the bayonet 21 and the restricting portion 107 as a fulcrum, the ink cartridge 10 is pressed in a clockwise direction to rotate the ink cartridge 10 downward until the hook 1095 approaches both sides of the rod 22, and the ink cartridge 10 is continuously pressed in the above direction. At this time, the hook 1095 is plastically deformed by touching the card slot 23, and when the "click" is heard, the hook 1095 has moved downward to below the card slot 23, and then the hand is released, then the ink cartridge main body 101 When the hooks 1095 are also moved upward along with the ink cartridge 10, the inner surface of the hook 10951 is engaged with the inner surface of the card slot 23, and the ink cartridge 10 is moved upward by the elastic force of the plurality of device-side terminals 25 of the printer. It is fixed in the printer, and the ink supply tube 24 of the ink outlet 103 printer is connected, and the two are established. Ink circulation channel.

When the ink cartridge 10 is detached from the printer, it is only necessary to press the pressing button 1092 on the engaging portion 109 with a finger, so that the connecting body 1094 rotates around the rotating shaft 1093 in the counterclockwise direction, thereby driving the hook 1095 to rotate to release the card. The mating relationship between the grooves 23, that is, the inner surface of the hook 1095 is separated from the inner surface of the card slot 23. Then, the ink cartridge 10 is moved upward by a tensile force of the plurality of device-side terminals 25 of the printer, and the hook 1095 is deviated from the original position, and the user can directly take out the ink cartridge 10.

This embodiment also provides another method of releasing the engagement relationship between the engaging device and the engaging portion. As shown in Fig. 9, when the ink cartridge 10 is detached from the printer, the lever member 22 is pushed, and the lever member 22 is moved. Since the lever member 22 is opposed to the abutting surface between the two hooks 1095, the lever member 22 is When moving, it can move until the abutting surface abuts, and then it is equivalent to applying a force to the abutting surface, that is, applying a force to the connecting body 1095, so as to drive the hook 1095 around the rotating shaft 1093. When the hour hand rotates, the engagement between the hook 1095 and the card slot 23 can be released.

In the ink cartridge provided in this embodiment, an engaging device is disposed on an upper portion of the main body of the ink cartridge, and the engaging device has an engaging portion for engaging with the engaging portion on the printer, and cancels the rod of the printer provided on the existing ink cartridge. The mating part of the fitting part of the piece, the loading device does not abut or contact with the rod of the printer during the loading process, that is, the inside of the ink cartridge mounting portion is not occupied during the positioning of the ink cartridge in the printer Space, the ink cartridge is not fixed by cooperating with the rod of the printer, so that the user can easily take the ink cartridge, avoiding the difficulty in installing or disassembling the ink cartridge, and reducing the need for the user to take the ink cartridge without changing the user's usage habits. It takes a lot of effort.

In addition, the ink cartridge 10 is further provided with an air inlet 104 communicating with the ink chamber 103, which can introduce external air in time to balance the internal pressure of the ink cartridge 10, and pass through a gas guide when the ink cartridge 10 is not in use. The membrane (not shown) is sealed. In addition, in the embodiment, the ink cartridge 10 is further provided with a protective cover 113 to cover the sealed ink outlet 103, and the protective cover 103 is passed through the ink cartridge. The locking portion 114 on the 10 is fitted to the ink cartridge 10 in cooperation.

Further, the ink cartridge main body 101 is further provided with a circuit substrate (not shown), a plurality of terminals are disposed on the circuit substrate, and a plurality of terminals are respectively used for abutting with the plurality of device-side terminals 25 of the printer to establish Electrical connection. The circuit board is disposed obliquely with respect to the top surface 1011 and the bottom surface 1012 of the ink cartridge main body 101. That is, the circuit substrate is not parallel to any flat on the ink cartridge main body 10. Face.

Specifically, the circuit substrate further includes: a memory for storing information related to the ink cartridge, such as an ink cartridge production date, ink color information, etc., in order to ensure that the data can be erased multiple times and data is not lost, the EEPROM can be selected as EEPR0N, RAM+ a plurality of non-volatile memories such as a battery or a flash; a plurality of terminals are disposed on an outward side of the circuit substrate, and when the ink cartridge 10 is mounted on the printer, the plurality of terminals are respectively connected to the plurality of device-side terminals 25-to-one, Thereby, an electrical connection is established between the ink cartridge 10 and the printer, and data communication can be performed between the two. In this embodiment, in order to ensure that the circuit substrate can be recycled after the ink consumption of the ink cartridge is completed, preferably, the circuit substrate is disposed on a chip carrier 1 12 , and the chip carrier 12 12 is detachably mounted on the ink cartridge 10 . The chip carrier 1 12 is also not parallel to any plane of the ink cartridge 10.

In order to ensure stable printing, a negative pressure generating member is often provided in the ink cartridge 10 to control the negative pressure inside the ink cartridge. The negative pressure generating member may be a porous body, i.e., a sponge or a sieve. In the present embodiment, the negative pressure generating member is a gas control valve 105 which is selectively flowable by a control gas. In the present embodiment, the control valve 105 is disposed on the intake passage to selectively open or close according to the pressure difference between the ink chamber 102 and the outside atmosphere.

10 is a schematic exploded view of the air control valve of the ink cartridge provided by the present invention; as shown in FIG. 10, the air control valve 105 includes a valve chamber 1051, a valve film 1052 and a valve cover 1053. The bonnet 1053 is provided with a vent hole 1054 communicating with the air inlet 104. The center of the valve film 1052 is provided with a small round hole 1055 with a flange. The valve chamber 1051 is also provided with a valve 1052 to prevent deformation of the valve film 1052. The rebounding boss 1056 and a hole 1057 communicating with the ink chamber 1052. In the ink cartridge manufacturing process, the assembly process of the control valve 105 is: the valve membrane 1052 is inserted into the valve chamber 1051, and is in contact with the boss 1056 to be fixed thereto, and then the valve cover 1053 is inserted to make the valve cover 1053 is closed with the valve chamber 1051 to form a closed space, and finally a sealing film (not shown) covering the valve cover 1053 and the valve chamber 1051 is welded to seal the control valve 105.

When the ink cartridge 10 is not in use, the control valve 105 is in a closed state, and a small round hole in the center of the valve membrane 1052

1055 is abutted on the valve cover 1053, and the vent hole 1054 is also sealed by the sealing film; when the ink cartridge 10 is used, since the air guiding film on the air inlet 104 is torn, the air control valve 105 is ventilated through the vent 1054. The hole 104 communicates with the outside atmosphere, that is, the ink chamber 102 communicates with the outside atmosphere through the hole 1057, the vent hole 1054, and the air inlet hole 104, and at the same time, since the ink near the ink outlet port 103 is consumed at this time, There is a certain pressure difference between the ink chamber 102 and the outside atmosphere, with the elimination of ink The pressure difference between the ink chamber 102 and the external atmosphere is getting larger and larger. When it reaches a predetermined value, the control valve 105 is opened, that is, the small circular hole 1055 at the center of the valve membrane 1052 leaves the valve cover 1053, and the external atmosphere passes through. The air holes 104, the vent holes 1054, the circular holes 1055, and the holes 1057 in the valve chamber 1051 enter the ink chamber 102 to prompt the ink to be replenished to the vicinity of the ink outlet port 103 in time. This operation is repeated until the ink in the ink cartridge 10 is consumed. Obviously, the use of the control valve 105 can control the steady air replenishment amount so that the negative pressure in the ink chamber is in a relatively constant state, which largely ensures that the ink can continuously and stably flow to the print head during printing.

It should be understood by those skilled in the art that the above-mentioned negative pressure generating component may be a one-way valve (water control valve) that selectively supplies ink to the ink outlet by controlling the ink, and may also be a one-way valve adopting other principles, according to Choose the specific use characteristics of the ink cartridge.

In order to simplify the manufacturing process, in the present embodiment, the valve chamber 1051 of the control valve 105 is integrally formed with the above-mentioned cover, as shown in FIG. 4; in order to simplify the structure inside the casing, preferably, in this embodiment, the ink flow path 106 is integrally formed with the above-mentioned control valve 105 and the cover. A person skilled in the art should understand that the above-mentioned gas control valve 105, the lid, and the ink flow passage 106 may also be separately disposed, such as the valve chamber is directly formed on the box body or the gas control valve is separately formed into a module and then installed in the box body or On the lid.

As shown in FIG. 4, one end of the ink passage 106 is a passage inlet 1061, and the other end is a passage outlet 1062. When the cover and the casing are welded to each other, the passage inlet 1061 is slightly higher than the bottom wall of the casing. The passage outlet 1062 is engaged with a connecting hole 116 provided in the bottom wall of the casing and communicating with the ink outlet 103. For this purpose, ink flows in from the passage inlet 1061, passes through the meandering ink flow passage 106, and passes through the passage outlet 1062. The connection hole 116 flows out to the ink outlet 103. And, as shown in FIG. 5, a partition 115 is further provided inside the casing to isolate and position the ink passage 106 and the control valve 105 from each other.

The present invention further provides another embodiment of the engaging device. According to the above embodiment, the engaging device 109 further includes an elastic member, the upper end of the elastic member abuts against the connecting body, and the lower end of the elastic member abuts against the ink cartridge main body.

Specifically, FIG. 11 is a schematic structural view of a second type of engaging device according to an embodiment of the present invention; and FIG. 12 is a schematic view showing a state of disengagement between the engaging device and the printer shown in FIG. And the remaining components of the ink cartridge are omitted in FIG.

As shown in Figures 11 and 12, the elastic members are disposed between the support sheets 117, and one end is fixed to a wall extending from the right side surface 1014 of the ink cartridge 10 and perpendicular to the right side surface 1014, and the other end is The connectors 1094 are connected. Preferably, the elastic member is a spring 111, and those skilled in the art will understand that the elastic member 111 is also of other structures, such as a member having elastic deformation and resilience, a device that can move when an external force is applied or an external force is removed, and the like. .

In this embodiment, when the ink cartridge is loaded into the printer, the projection 107 on the ink cartridge 10 is first engaged with the bayonet 21, and the hook 1095 is located above the edge of the lever member 22. Then, with the matching point of the bayonet 21 and the protrusion 107 as a fulcrum, the ink cartridge is pressed in a clockwise direction to rotate the ink cartridge downward until the hook 1095 approaches the two sides of the rod 22, and the ink cartridge 10 is continuously pressed in the above direction, due to the spring. One end of the 111 is connected to the connecting body 1094. At this time, the spring 111 applies a force to the hook 1095, so that the hook 1095 is also moved downward to below the card slot 23; when the hand is released, the ink cartridge main body 101 is at the printer. The device side terminal 25 is moved upward by the elastic force, and the hook 1095 is also moved upward with the above-mentioned ink cartridge 10 until the inner surface of the hook 1095 is engaged with the inner surface of the card slot 23, at this time, the spring 111 is still applied. A force is applied to the hook 1095. In the present embodiment, the spring 111 applies a force to the hook 1095 to be stably and tightly coupled with the card slot 23. At this time, the ink cartridge 10 is fixed in the printer, and the ink supply tube 24 of the ink outlet 103 printer communicates with each other to establish an ink circulation path therebetween.

When the ink cartridge 10 is detached from the printer, only the pressing button 1092 is required to be pressed, the spring 111 is pressed and deformed, so that the hook 1095 is rotated about the rotating shaft 1093, and the cooperation relationship between the hook 1095 and the card slot 23 is released; After the pressing, the ink cartridge 10 moves upward by a certain distance under the elastic force of the plurality of device-side terminals 25 of the printer, and then the hook 1095 is deviated from the original position, and the user can directly take out the ink cartridge 10 at this time. At the same time, when the above-mentioned pressing is cancelled, the spring 111 is restored to deform and a large force is generated to push the hook 1095 to rotate around the rotating shaft 1093 to restore the original position (the position when not in use, as shown in FIG. 2), which is convenient for the user. Install the ink cartridges one time, without the user having to rotate the above-mentioned snap-in to the original position.

The rest of the structure is similar to the description of the above embodiment, and details are not described herein again.

FIG. 13 is a schematic structural diagram of a third type of engaging device according to an embodiment of the present invention. As shown in FIG. 13, the engaging portion of the engaging device is at least one claw portion 119 extending outward from either side of the front and rear sides of the ink cartridge 10, and the claw portion 119 is integrally formed with the ink cartridge main body 101. They are assembled independently of each other and assembled, and the components of the rotating shaft and elastic parts are not included in the engaging device. In this embodiment, in order to ensure stable positioning of the ink cartridge, preferably, the engaging means are two claw portions 119 extending outward from the front and rear sides of the ink cartridge, as shown in FIG.

For this reason, when the ink cartridge is loaded into the printer, the same as the fulcrum and the bayonet fit as the fulcrum, along the clockwise After the ink cartridge is pressed in the direction of the needle, the claw portion 119 is plastically deformed to engage with the card slot 23. When the ink cartridge is removed, the user needs to move the claw portion 119 upward to release the cooperation between the two to take out the ink cartridge.

It will be understood by those skilled in the art that the above-mentioned claw portion may have other shapes as long as it can function as a joint with a joint provided on at least one side of the rod provided on the printer.

The rest of the structure is similar to the above embodiment, and details are not described herein again.

It will be understood by those skilled in the art that the engaging device may not be provided with the above-mentioned pressing button, and the user only needs to press the connecting body to rotate the connecting body or the hook around the shaft.

14 is a schematic structural view of a fourth type of engaging device according to an embodiment of the present invention; FIG. 15 is a schematic view showing a state of cooperation between the engaging device and the printer shown in FIG. 14; Schematic.

As shown in FIG. 14, two opposite surfaces are respectively provided on the opposite surfaces extending from the two sides 1015, 1016 of the ink cartridge, which are respectively engageable with the rod member 22 provided on the printer after the ink cartridge is loaded into the printer. The two side walls 222, 223 are respectively fitted. Specifically, in this embodiment, the engaging portion is a friction generating member 120 that generates a frictional force when it comes into contact with the side walls 222, 223 of the rod member 22. It may be a sponge, a silica gel or the like which has a high coefficient of friction and may be adhered to the above two extended faces. Further, preferably, the friction generating member 120 has a certain elasticity so that it also has a good recovery ability after long-term use.

As shown in FIG. 15, after the ink cartridge is loaded into the printer, the two friction generating members 120 are respectively in contact with the side walls 222, 223 of the rod member 22, specifically, the two side walls 222, 223. The upper portion is in contact to secure the ink cartridge to the printer. When the ink cartridge is taken out, the user only needs to apply a force to the rear wall 224 to push the rod member 22 to rotate by a certain angle in the direction indicated by the arrow A, thereby overcoming the frictional force generated by the friction generating member. When the contact between the two friction generating members 120 and the side wall is separated, the ink cartridge is bounced up under the force of the plurality of device-side terminals 22 on the printer, thereby facilitating the user to take out the ink cartridge.

It should be understood by those skilled in the art that the friction generating component 120 can also be disposed in contact with the inner wall 225 of the rod member 22 facing the cartridge receiving cavity to fix the ink cartridge. Then, the corresponding friction generating component 120 is disposed above. The ink cartridge is on the side 1014 opposite the inner wall 225 of the rod member 22 described above. It should be understood by those skilled in the art that, in the above embodiment, the joint portion may be a two-part extension corresponding to the size between the two side walls of the rod member, in addition to the friction force acting member; or other settings. A member that can abut one of the wall surfaces of the rod member and a side surface of the ink cartridge opposite the wall surface, such as a member placed between the side surface 1014 of the ink cartridge and the inner wall 225 of the rod member.

The embodiment of the present invention further provides a printer, comprising an ink cartridge mounting portion 20, the ink cartridge mounting portion 20 includes an ink cartridge receiving cavity, a rod member 22, a plurality of device-side terminals 25, and a side wall of the ink cartridge mounting portion 20 has a bayonet 21, the rod member 22 and the plurality of device-side terminals 25 are disposed in the ink cartridge accommodating cavity and away from the bayonet 21, and the card member 22 is provided with a card slot 23 on both sides thereof. The printer further includes the ink cartridge 10 provided in the above embodiment, the ink cartridge The protrusion on the main body 101 is engaged with the bayonet 21, and the engaging portion is engaged with the card slot card 23.

The embodiment of the present invention further provides an ink supply system including an ink cartridge mounting portion 20, the ink cartridge mounting portion 20 includes an ink cartridge receiving cavity, a rod member 22, a plurality of device side terminals 25, and a side wall of the ink cartridge mounting portion 20. The card has a bayonet 21, the rod member 22 and the plurality of device-side terminals 25 are disposed in the ink cartridge accommodating cavity and away from the bayonet 21. The two sides of the rod member 22 are provided with a card slot 23, and the printer further includes the ink cartridge provided by the above embodiment. 10, the protrusion on the ink cartridge main body 101 is engaged with the bayonet 21, and the engaging portion is engaged with the card slot 23.

A person skilled in the art can understand that if the ink cartridge adopts the positioning method as described in the background art, that is, a limiting portion is disposed on the side of the ink cartridge near the circuit substrate, when the ink cartridge is loaded into the printer, the limiting portion is The fitting portion provided on the rod member cooperates to fix the above-mentioned ink cartridge. However, as described above, since the installation space is small, the cartridge loading requires a large amount of effort for the user, and the user may use it during the installation process. After a large amount of effort, it is easy to think that the ink cartridge is installed in place. In fact, the ink cartridge is not installed in place. At this time, if the printing is performed, the ink cartridge is prone to sway during the movement, affecting the electrical connection with the ink cartridge, or causing ink leakage.

Therefore, in order to ensure that the ink cartridge does not move in a direction perpendicular to the direction in which the ink cartridge mounting portion moves during the printing process, at least a gland is added to the printer using the ink cartridge, and the pressure cap can be disposed on the ink cartridge mounting portion. The engaging portions provided on both sides of either of the bars cooperate to fix the ink cartridge in the above direction. The number of the caps may correspond to the number of cartridges mounted on the printer, that is, each of the cartridge mounting portions is provided with a gland, and the gland is engaged with the engaging portion of at least one side of each of the bars. It is also possible to provide only one gland, and the gland is provided with a plurality of matching devices and each rod mounting portion. The joints on both sides of the piece cooperate.

It will be understood by those skilled in the art that if the ink cartridge adopts the positioning method as described in the background art, in order to reduce the size of the ink cartridge mounting portion, the rod members of the respective ink cartridge mounting portions are disposed close to each other; in order to reduce the consumption of the manufacturing material, The slot provided on both sides of the lever can be canceled.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. An ink cartridge, detachably installed on an inkjet printer, the inkjet printer includes a plurality of device-side terminals and levers, wherein when the ink cartridge is installed on the inkjet printer, the device-side The terminal can apply an elastic force to the ink cartridge, and the rod can move relative to the inkjet printer. The ink cartridge includes: an ink cartridge body with an ink chamber for containing ink inside; characterized in that, the ink cartridge It also includes a locking device, which is arranged on the upper part of the ink cartridge body;

The engaging device includes an engaging portion protruding toward the outside of the ink cartridge body, and the engaging portion cooperates with a joint portion provided on the inkjet printer to fix the ink cartridge.

2. The ink cartridge according to claim 1, wherein the engaging portion cooperates with a joint portion provided on the inkjet printer and located on at least one side of the rod to fix the ink cartridge.

3. The ink cartridge according to claim 2, wherein the engaging portion cooperates with the joint portions located on both sides of the rod to fix the ink cartridge.

4. The ink cartridge according to claim 1, wherein the joint portion is at least one wall surface of the rod.

5. The ink cartridge according to claim 1 or 2, wherein the engaging portion is a slot provided on the inkjet printer and located on at least one side of the rod; the engaging portion includes A hook used to engage with the slot.

6. The ink cartridge according to claim 5, wherein the engaging device further includes a rotating shaft, and the engaging portion can rotate around the rotating shaft.

7. The ink cartridge according to claim 6, wherein the engaging portion further includes a connecting body connecting the hook, and the rotating shaft is connected to the connecting body and is disposed on itself. The shaft holes on the two support pieces extending outward respectively on both sides of the ink cartridge body match.

8. The ink cartridge according to claim 7, wherein the engaging device further includes an elastic member, the upper end of the elastic member is in contact with the connecting body, and the lower end of the elastic member is in contact with the ink cartridge body. .

9. The ink cartridge according to claim 7 or 8, wherein the engaging portion is further provided with an abutting surface opposite to the rod of the inkjet printer, and the abutting surface can pass through the inkjet printer. The rods are in contact with each other to release the engagement between the engaging portion and the engaging slot.

10. The ink cartridge according to claim 4, wherein the engaging portion is a friction generating component.

11. The ink cartridge according to claim 1 or 2 or 3 or 4 or 10, characterized in that the main body of the ink cartridge is further provided with a circuit substrate, the circuit substrate is provided with a plurality of terminals, and the plurality of The terminals are used to respectively contact with the plurality of device-side terminals of the inkjet printer to establish electrical connections, and the circuit substrate is inclined relative to the upper and lower surfaces of the ink cartridge body.

12. The ink cartridge according to claim 1 or 2 or 3 or 4 or 10, characterized in that a protrusion that engages with the snap of the inkjet printer is further provided on one side of the main body of the ink cartridge.

13. The ink cartridge according to claim 1 or 2, wherein the engaging portion is a claw-like shape that extends from at least one side surface of the ink cartridge body toward the outside of the ink cartridge and is integrally formed with the ink cartridge body. department.