CN1764546A - Ink cartridge - Google Patents
Ink cartridge Download PDFInfo
- Publication number
- CN1764546A CN1764546A CN 200580000062 CN200580000062A CN1764546A CN 1764546 A CN1764546 A CN 1764546A CN 200580000062 CN200580000062 CN 200580000062 CN 200580000062 A CN200580000062 A CN 200580000062A CN 1764546 A CN1764546 A CN 1764546A
- Authority
- CN
- China
- Prior art keywords
- valve
- print cartridge
- ink
- valve seat
- mounting portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Ink Jet (AREA)
Abstract
An ink cartridge includes an ink chamber, a communication chamber that is capable of communicating with the ink chamber and an outside of the ink cartridge, a valve disposed within the communication chamber that is capable of moving from a first position where a communication between the ink chamber and the outside of the ink cartridge is blocked, to a second position where the communication is allowed, and an operation member that extends from the communication chamber to the outside of the ink cartridge and is capable of moving the valve from the first position to the second position.
Description
Technical field
Application of the present disclosure relates to a kind of print cartridge that can be placed on the ink jet recording device.
Background technology
Disclose a kind of ink jet recording device in Japanese issued for approval patent application No.H9-85963, this ink jet recording device is configured such that ink container (being called " print cartridge ") can be installed to retainer (mounting portion) and go up and pull down from retainer (mounting portion).Form the extension of opening the print cartridge opening in the installation portion office, and provide through hole, make China ink from the valve of print cartridge, to flow out in this extension office.When print cartridge was installed on the mounting portion, extension was opened this valve, and the China ink in the print cartridge flows through this opening.
Summary of the invention
But, installed and the opening of print cartridge is extended when partially opening when print cartridge, in order to connect print cartridge, this opening must accurately be placed with respect to extension.In addition, inaccurate if the shape of extension is made, then print cartridge may not be installed smoothly, and/or China ink may leak or evaporate.
Especially, for the print cartridge among the above-mentioned Japan patent application No.H9-85963 co-pending, this print cartridge is provided with ink supply opening and air guide opening, at the ink supply opening of mounting portion side with runner must seal and accurately make, makes China ink not leak.In addition, two extensions must be accurately corresponding to ink supply opening and air guide opening.Therefore, must make print cartridge with the higher degree of accuracy.
Make the present invention and be in order to solve the problems referred to above except that other problem, and provide a kind of print cartridge, this print cartridge can be placed in the ink jet recording device, print cartridge can be installed in the ink jet recording device at an easy rate thus, and makes that the manufacturing of print cartridge is simple.
According to an aspect of the present invention, a kind of print cartridge comprises: black chamber; Communication chamber, this communication chamber can with the external communications of black chamber and print cartridge; Be arranged on the valve in the communication chamber, this valve can move to the second place that allows this connection from the primary importance that is communicated with between the outside that stops black chamber and print cartridge; And operating parts, this operating parts extends to the outside of print cartridge from communication chamber, and can make valve move to the second place from primary importance.
According to an aspect of the present invention, when print cartridge was installed in the mounting portion of ink jet recording device, operating parts can make valve move to the second place from primary importance by the contact mounting portion.
According to an aspect of the present invention, valve and the operating parts part that can form as one.
According to an aspect of the present invention, print cartridge can also comprise: valve seat, and this valve seat and valve are adjacent; And pressing device, this pressing device pushes valve to valve seat.Can form opening in the approximate center of valve seat, so that expose the bottom of valve.Valve seat can be at the outside of this opening contact valve.Operating parts can pass opening from valve and stretch out.
According to an aspect of the present invention, pressing device can extend and around valve from valve seat, and pressing device can form with valve seat is whole, so that at the first side direction valve seat pushing valve opposite with valve seat of valve.
According to an aspect of the present invention, operating parts can be positioned at second side opposite with first side of valve.
According to an aspect of the present invention, print cartridge can also comprise the seal around operating parts.
According to an aspect of the present invention, an end of operating parts can be between the outboard end of the outboard end of communication chamber and seal.
According to an aspect of the present invention, seal can extend and form with valve seat is whole from valve seat in a side opposite with valve.
According to an aspect of the present invention, print cartridge can also comprise the seal around operating parts, wherein when print cartridge is installed in the mounting portion of ink jet recording device, and seal contact mounting portion and the passage of formation from the runner in the mounting portion to black chamber.
According to an aspect of the present invention, valve seat, pressing device and seal can form by rubber type of material is whole.
According to an aspect of the present invention, a kind of print cartridge comprises: black chamber; The air communication chamber, this air communication chamber can with the external communications of black chamber and print cartridge; Be arranged on the first indoor valve system of air communication; The China ink communication chamber, this China ink communication chamber can with the external communications of black chamber and print cartridge; With second valve system that is arranged in the black communication chamber.At least one valve system in first valve system or second valve system comprises valve seat, the valve and the operating parts that can move with respect to valve seat, this operating parts extends to the outside of at least one communication chamber in air communication chamber or the black communication chamber, and can make valve move to the second place that valve and valve seat separate from the primary importance of valve contact valve seat.
According to an aspect of the present invention, when print cartridge was installed in the mounting portion of ink jet recording device, operating parts can make valve move to the second place from primary importance by the contact mounting portion.
According to an aspect of the present invention, valve and the operating parts part that can form as one.
According to an aspect of the present invention, air communication chamber and black communication chamber can be formed on a side of print cartridge.
According to an aspect of the present invention, first valve system can comprise valve seat, valve and operating parts, and second valve system can comprise valve seat and valve.When print cartridge is installed in the mounting portion of ink jet recording device, the operating parts of first valve system can move to the second place to the valve of first valve system from primary importance by the contact mounting portion, and the valve of second valve system can be by by being arranged on the extraction tube promotion in the mounting portion and moving to the second place from primary importance.
According to an aspect of the present invention, a kind of valve system can comprise: valve; Operating parts; Valve seat partly locates to have opening in the approximate centre of this valve seat; And pressing device, this pressing device pushes valve on first direction, make valve contact valve seat.The opening that operating parts passes valve seat stretches out.Valve is between valve seat and pressing device.When operating parts pushed valve on the second direction opposite with first direction, valve separated with valve seat.
According to an aspect of the present invention, valve system can also comprise around the seal of the periphery of opening and operating parts.
According to an aspect of the present invention, an end of operating parts can be between the outboard end of valve and seal.
According to an aspect of the present invention, a kind of ink jet recording device can comprise the mounting portion, and a kind of print cartridge in the above-mentioned print cartridge can be admitted in this mounting portion.This mounting portion comprises runner, by this runner air is directed to print cartridge.
According to an aspect of the present invention, a kind of ink jet recording device can comprise ink gun and mounting portion, and a kind of print cartridge in the above-mentioned print cartridge can be admitted in this mounting portion.This mounting portion comprises extraction tube, by this extraction tube China ink is supplied to ink gun.
According to an aspect of the present invention, there is no need to be provided for to open the projection of the opening of valve member in the installation portion office of ink jet recording device.Therefore following effect is arranged, and promptly location print cartridge and mounting portion become and are easy to when print cartridge is installed to the mounting portion.
According to an aspect of the present invention, when when ink jet recording device is pulled down print cartridge, pressing device makes valve member contact valve seat, and prevents that China ink from leaving by opening or evaporate.And, when print cartridge is installed on the ink jet recording device, can be by evenly rising valve by operating parts and valve and valve seat separately being opened valve.
According to an aspect of the present invention, do not need the complicated operations program to be installed in the pressing device of the interior pushing in the zone valve member of location valve member.The effect that therefore manufacturing cost that reduces print cartridge is arranged.
According to an aspect of the present invention, prevent that China ink from leaving or evaporate by opening.
According to an aspect of the present invention, at least one valve system in first and second valve systems comprises valve seat and the valve that can move with respect to valve seat.Valve has the operating parts that stretches out in the print cartridge outside, and is configured such that: when print cartridge was installed on the mounting portion, operating parts contact mounting portion made valve and valve seat separate.When providing the operating parts that stretches out accordingly with first and second valve systems to the mounting portion, operating parts must seal preventing ink leakage, and manufactures and make it accurately maintain two mutual alignments relation and mutual alignments between black communication chamber and air communication chamber between the operating parts that stretches out to concern.But following effect is arranged, promptly can easily be installed to print cartridge on the mounting portion, make easily simultaneously, and on the relation of position, do not need the higher degree of accuracy.
According to an aspect of the present invention, can by simply on the direction of mounting portion mobile print cartridge open two valve systems, thereby better operability is provided.
Description of drawings
Each example embodiment of the present disclosure will be described with reference to following accompanying drawing, wherein:
Fig. 1 goes up the schematic diagram according to one the of the present disclosure ink jet recording device of demonstrating that this print cartridge is installed according to demonstration print cartridge and its of the present disclosure;
The cutaway view of Fig. 2 A and 2B shows the structure according to a demonstration print cartridge of the present disclosure: Fig. 2 A shows the print cartridge before ink jet recording device that print cartridge is packed into; Fig. 2 B shows the print cartridge after ink jet recording device that print cartridge is packed into;
Fig. 3 A-3E has described according to a demonstration valve member of the present disclosure: Fig. 3 A is a plane; Fig. 3 B is a side view; Fig. 3 C is the cutaway view along the line I-I of Fig. 3 A; Fig. 3 D is the cutaway view along the line II-II of Fig. 3 A; Fig. 3 E is a upward view;
Fig. 4 A-4C has described according to a demonstration valve member of the present disclosure: Fig. 4 A is a plane; Fig. 4 B is a side view; Fig. 4 C is a upward view;
Fig. 5 A and 5B have described according to a demonstration mounting portion of the present disclosure: Fig. 5 A is the cutaway view along the line III-III of Fig. 5 B; Fig. 5 B is a upward view;
Fig. 6 A and 6B have described the demonstration mounting portion of Fig. 5 B; Fig. 6 A is the cutaway view along the line IV-IV of Fig. 5 B; Fig. 6 B is the cutaway view along the line V-V of Fig. 5 B;
Fig. 7 is the perspective view according to a demonstration check-valves of the present disclosure;
Fig. 8 A-8C has described according to a demonstration print cartridge of the present disclosure; Fig. 8 A is a front view; Fig. 8 B is a side view; Fig. 8 C is a upward view;
Fig. 9 is the perspective view of the print cartridge of Fig. 8 A-8C;
The cutaway view of Figure 10 shows the structure according to a demonstration print cartridge of the present disclosure before ink jet recording device that print cartridge is packed into;
Figure 11 A and 11B are the cutaway views according to a demonstration pumping ink pipe of the present disclosure and a demonstration valve member: Figure 11 A shows the pumping ink pipe before the pumping ink pipe enters guide channel; Figure 11 B shows the contact valve member and makes valve member push the pumping ink pipe of black chamber to;
Figure 12 is the oblique angle perspective view according to a demonstration valve member of the present disclosure;
Figure 13 is the perspective view according to the lower inside of a demonstration toner cartridge main body of the present disclosure;
Figure 14 is the profile of the section VI of Figure 13;
Figure 15 is the profile of the section VII of Figure 13;
Figure 16 is the profile of the section VIII of Figure 13;
Figure 17 is the profile of the section IX of Figure 13;
Figure 18 is the perspective view according to the lower inside of a demonstration toner cartridge main body of the present disclosure;
Figure 19 is the perspective view according to the lower inside of a demonstration toner cartridge main body of the present disclosure;
Figure 20 A and 20B are the cutaway views of Figure 19: Figure 20 A is the profile of section X; Figure 20 B is the profile of section XI;
The cutaway view of Figure 21 shows the structure according to a demonstration print cartridge of the present disclosure before ink jet recording device that print cartridge is packed into;
Figure 22 is the upward view according to a demonstration main body case of the present disclosure;
Figure 23 A and 23B are the cutaway views according to a demonstration print cartridge of the present disclosure under the state of removing valve member from valve seat part: Figure 23 A shows the print cartridge that correctly is installed in the mounting portion; Figure 23 B shows the print cartridge of installing incorrectly in the mounting portion;
The cutaway view of Figure 24 shows the structure according to a demonstration print cartridge of the present disclosure before ink jet recording device that print cartridge is packed into;
Figure 25 A and 25B have described the leading section according to the amplification of a demonstration air guide element of the present disclosure: Figure 25 A is a profile; Figure 25 B is a vertical view;
Figure 26 A and 26B have described the leading section according to the amplification of a demonstration air guide element of the present disclosure: Figure 26 A is a profile; Figure 26 B is a vertical view.
The specific embodiment
Below with reference to accompanying drawing an embodiment of the present disclosure is described.Fig. 1 goes up the schematic diagram according to one the of the present disclosure ink jet recording device 2 of demonstrating that this print cartridge 1 is installed according to a demonstration print cartridge 1 of the present disclosure and its.
Ink jet recording device 2 is provided with: mounting portion 3, print cartridge 1 are installed on this mounting portion 3; Container 5, these container 5 storages will be by the China ink of print cartridge 1 by 4 supplies of ink supply pipe; Record head 7, record head 7 is mapped to the China ink of storage in the container 5 on the record-paper 6; Balladeur train 8 container 5 and record head 7 are installed, and this balladeur train 8 can move on two rectilinear directions in this balladeur train 8; Balladeur train axle 9, this balladeur train axle 9 is guides, balladeur train 8 moves on described two rectilinear directions by this guide; Conveying mechanism 10, these conveying mechanism 10 feeding recordable papers 6; With cleaning device 11.
Mounting portion 3 is made up of base portion 3a and the guide part 3b that is arranged on this base portion 3a both sides.Pumping ink pipe that hollow is stretched out 12 extracts the China ink of storage in the print cartridges 1, and the air supply opening 91 that extraneous air is directed to print cartridge 1 is arranged on the base portion 3a.
One end of pumping ink pipe 12 is communicated with black runner 94, and is communicated with container 5 by ink supply pipe 4.Air supply runner 92 and air inlet 93 are communicated with (seeing Fig. 5 A and 5B) with air supply opening 91.
From the direction (arrow directions X) vertical print cartridge 1 is installed with mounting portion 3.At this moment, pumping ink pipe 12 is opened the valve system 23 that aftermentioned is arranged on print cartridge 1 inside, and with the internal communication of black chamber 16.In addition, the internal communication of air supply opening 91 and black chamber 16.
In record head 7 with on record-paper 6 facing surfaces, a plurality of nozzle openings are set.By driving the actuator of being made up of piezoelectric element, the China ink of storage is from these nozzle bore directive record-papers 6 in the container 5.For physical record operation, along with the balladeur train 8 that record head 7 is installed moves around and at record-paper 6 enterprising line items.
In addition, record head 7 is positioned at 3 tops, mounting portion.Like this, owing to the print cartridge 1 and the head difference between the nozzle bore that are installed in the mounting portion 3 give the interior China ink of nozzle bore with negative pressure (back pressure).
When carrying out cleaning process, balladeur train 8 is moved to the cleaning process executing location, and with cleaning the surface that is formed with nozzle bore on its of cap 11a covering record head 7.Pump 11c is driven under this state, and the defective China ink that contains bubble of suction record head 7 inner accumulated.The defective China ink that aspirates out is stored in the useless ink container of not describing by useless China ink pipe 11b.Record operation and cleaning process are by CPU (CPU) the (not shown) control that is installed in the ink jet recording device 2.
Then be installed in the print cartridge structure of the A of Fig. 1 particularly in the ink jet recording device 2 with reference to figure 2A and 2B explanation.The cutaway view of Fig. 2 A and 2B shows the structure according to print cartridge 1 of the present disclosure: Fig. 2 A shows the print cartridge 1 before ink jet recording device 2 that print cartridge 1 is packed into; Fig. 2 B shows the print cartridge 1 after ink jet recording device 2 that print cartridge 1 is packed into.
Form ink supply opening 21 in diapire 1e, this ink supply opening 21 is outwardly open with the China ink in the black chamber 16 of outside supply.Ink supply opening 21 directly is communicated with the communication chamber 30 that is arranged on cylindrical wall 21a inside, and the bottom first surface of this cylindrical wall 21a and diapire 1e is whole to be formed, and stretches out from this bottom first surface.In addition, form air guide opening 26 in diapire 1e, this air guide opening 26 is used to guide air to enter black chamber 16.Air guide opening 26 directly is communicated with the communication chamber 50 that is arranged on cylindrical wall 26a inside, and the described lower surface of this cylindrical wall 26a and diapire 1e is whole to be formed, and stretches out from this lower surface.When on mounting portion 3, print cartridge 1 being installed, pumping ink pipe 12 is inserted communication chamber 30.
Check-valves 60 is arranged in ink supply opening 21 and faces ink supply opening 21.By constructing check-valves 60 with resin material whole formation umbrella shape elastic membrane part 60b and shaft portion 60c, this umbrella shape elastic membrane part 60b is in the face of the lower surface of ink supply opening 21, and the end of this shaft portion 60c is keeping membrane portions 60b.Shaft portion 60c inserts axis hole 1n among the diapire 1e in the mode that can slide on above-below direction.Under normal circumstances, jut 60a contacts with the top surface of diapire 1e, and at its contact position place, membrane portions 60b and ink supply opening 21 separate, with allow China ink from black chamber 16 flowing to valve member 32.When China ink when pumping ink pipe 12 flows to black chamber 16, prevent that by rising membrane portions 60b and sealing ink supply opening 21 this from flowing.
Be respectively fixed to as the valve system 23,24 of examples of seals on the communication chamber 50 of the communication chamber 30 of ink supply side and air guiding side.
In valve seat part 46a, pass vertically valve seat part 46a in be formed centrally opening 41.In addition, form the guiding channel 40 that inserts pumping ink pipe 12 on outer wall 33, its generation type makes this guiding channel 40 be communicated with opening 41.
The internal diameter of guiding channel 40 is littler than the external diameter of pumping ink pipe 12, thereby outer wall 33 closely contacts with pumping ink pipe 12.Opening 41 forms bigger than the internal diameter of guiding channel 40, and littler than the external diameter of pumping ink pipe 12.End inserting pumping ink pipe 12 those sides of guiding channel 40 forms the taper that outwards broadens.
Pushing part 46b is formed with the propulsive units 37 that links to each other with sidewall sections 36 by sidewall sections 36, and inwardly stretch out, so that a side relative with black chamber 16 of contact valve member 32, sidewall sections 36 is erected to black chamber 16 from valve seat part 46a around the circumference of opening 37a cylindrically.Propulsive units 37 has the opening 37a at propulsive units 37 centers.
The elastic force of pushing part 46b by sidewall sections 36 and propulsive units 37 pushes valve member 32 making valve member 32 contact on the direction of valve seat part 46a, and valve member 32 is linked to each other with valve seat part 46a.In addition, by pumping ink pipe 12 is inserted guiding channel 40 so that valve member 32 is pushed black chamber 16 to, sidewall sections 36 extends, and propulsive units 37 tilts, thereby the formation of allowable clearance makes China ink to flow between valve member 32 and valve seat part 46a.
Fig. 3 A-3B shows the details of valve member 32.Valve member 32 is equipped with bottom 57 and from the vertically extending valve sidewall sections 56 of the excircle of this bottom 57.Pass bottom 57 and valve sidewall sections 56 and form communication passage 58 continuously.
This support member 46 has valve seat part 46a, pushing part 46b and hermetic unit 63.Valve seat part 46a and pushing part 46b have and valve system 23 identical functions.
Shown in Fig. 4 A-4C, valve member 65 has at the cylindrical part 66 at its place, top, at the operating parts 67 at place, its underpart and the valve portion of partly locating in its approximate centre 68.Be similar to the valve member 32 shown in Fig. 3 A-3E, valve portion 68 is equipped with bottom 57 and from the vertically extending valve sidewall sections 56 of the excircle of this bottom 57, passes bottom 57 and valve sidewall sections 56 and form communication passage 58 continuously.The function of these parts is identical with the function of those parts of valve member 32.Therefore omit description of them.
Operating parts 67 is 57 extensions that extend vertically downward from the bottom, and the concave surface 67b that is formed with circular profile 67a and extends on radial and axial.Operating parts 67 extends downwards by the opening 41 of support member 46, and has the lower end that slightly is positioned at top, hermetic unit 63 lower ends.This indent 67b can make the cross-sectional area of the air duct between opening 41 and indent 67b bigger.
Fig. 5 A-6B shows the details of mounting portion 3.At the air supply side, recessed 3d is positioned at above the base portion 3a of mounting portion 3 position to valve system 24.This recessed 3d has a side that is used for hermetic unit 63 joint when print cartridge 1 is installed.On the bottom of recessed 3d, not in the face of the position of operating parts 67 lower ends, the wall that passes structure base portion 3a forms air supply opening 91 in hermetic unit 63 inside.Air supply opening 91 can form the kerf that has than little width of the external diameter of operating parts 67 and long length, perhaps can be formed with a plurality of otch of radial set.
On the lower surface of the wall of constructing base portion 3a, form flute profile air supply runner 92.One end of air supply runner 92 increases along with its cross-sectional area and links to each other with air supply opening 91, and the other end links to each other with the air inlet 93 that the wall that is upward through structure base portion 3a at upper and lower forms.The part of air supply runner 92 is formed with a plurality of curved surfaces along the lower surface of described wall, with flowing of inhibition air, and prevents composition and the moisture evaporation in the China ink when linking to each other with the air guide opening 26 of print cartridge 1.
In the pumping ink side, on the upper surface of the wall of constructing base portion 3a, stretch out the whole formation in ground pumping ink pipe 12, and on lower surface, form black runner 94.Being upward through the lower end that pumping ink pipe 12 forms at upper and lower and linking to each other of end 94a and the black runner 94 of China ink runner 94, and end 94b is open upwards a part of upper surface of base portion 3a in the outside extension of guide part 3b, and on this upper surface, link to each other with ink supply pipe 4.
On the top of pumping ink pipe 12, be formed for the outside is opened wide the open communication 81a of black runner 94.Guarantee that by this connection opening 81a connection between black runner 94 and the black chamber 16, its mode of communicating make this top contact valve member 32.On the top surface of base portion 3a, for example sponge of porous elastomers 3c is set around pumping ink pipe 12.Porous elastomers 3c absorbs may be from the China ink of valve system 23 leakages.
In a plurality of positions is that a plurality of print cartridges are provided with mounting portion 3.Constitute each wall whole extension on the direction that print cartridge is arranged of base portion 3a and guide part 3b.For each installation site provides above-mentioned pumping ink pipe 12, black runner 94, guide part 3b, air supply opening 91 and air supply runner 92.Shown in Fig. 5 B, the end 94a that links to each other with each corresponding ink supply pipe 4 of each black runner 94,94b lateral register are in the extension office of base portion 3a.
In addition, by for example the lower surface that opens wide of resin molding 95 those grooves of covering forms above-mentioned black runner 94 and air is supplied runner 92 with cover piece.By welding film 95 is fixed on the lower surface of rib 94c, 92c of the circumference that forms black runner 94 respectively and air supply runner 92.Black runner 94 and air supply runner 92 with identical installation site are covered together by an independent film 95.
Then will the installation of print cartridge 1 at 3 places, mounting portion of ink jet recording device 2 be described with reference to figure 2A and 2B.Fig. 2 A shows the state in the mounting portion 3 that wherein print cartridge 1 is not installed in ink jet recording device 2.Under this state, the elastic force of the pushing part 46b by support member 46 all is pressed in the valve member 65 of the valve member 32 of ink supply side and air guiding side on the valve seat part 46a, and like this, each valve system 23,24 is not all opened.
Shown in Fig. 2 B, when print cartridge 1 was installed, in the ink supply side, the front end of the promotion valve member 32 by pumping ink pipe 12 and the extension of support member 46 were used for valve member 32 and the sidewall sections 36 that valve seat part 46a separates are opened valve system 23.Therefore, black runner extends to pumping ink pipe 12 by opening 37a, communication passage 58 and the space between valve member 32 and valve seat part 46a of black chamber 16, ink supply opening 21, valve system 23.Thereby China ink is supplied to record head 7.
On the other hand, at the air supply side, the front end of operating parts 67 contacts the bottom of recessed 3d, and this makes valve member 65 promote.Along with the elongation of the sidewall sections 36 of support member 46, the valve portion 68 of valve member 65 separates with valve seat part 46a.Therefore open valve system 24.
Simultaneously, hermetic unit 63 closely contacts with recessed 3d, like this can this is communicated with in permission under the connection between the air supply opening 91 of the air guide opening 26 of print cartridge 1 and mounting portion 3 and the outside inaccessible state.Thereby the air supply opening 91 by air inlet 93, air supply runner 92 and mounting portion 3, opening 41, the air flow channel that is formed into 16 tops, black chamber at valve member 65 and the space between the valve seat part 46a, communication passage 58, air guide opening 26 and the runner of valve system 24 in cylindrical parts 25 inside.
In this embodiment, engage and the position of regulating valve system 23 with guiding channel 40 owing to pumping ink pipe 12.But operating parts 67 can contact any part of recessed 3d bottom, removes non-air supply opening 91 obturations.Therefore, for ink supply opening 21 and air guide opening 26, valve system 23 and 24, the pumping ink pipe 12 of mounting portion 3 and each position relation between the air supply opening 91, print cartridge 1 can manufacture the dimensional tolerance with appropriateness.In addition, the user is installed in operation in the mounting portion to print cartridge 1 and becomes and be easy to.
Should be understood that, can obtain various improvement.For example, in the above-described embodiments, the valve system 24 of air supply side is provided with the operating parts 67 that stretches out in the print cartridge outside, and the pumping ink pipe 12 of mounting portion 3 stretches out in the pumping ink side.But, can be provided at this operating parts that stretch out print cartridge 1 outside for valve system 23 in the pumping ink side.
In addition, in this embodiment, use valve system to seal ink supply opening 21 and air guide opening 26.But, do not using the opening on the side of this valve system can use rubber seal, and aciculiform pumping ink pipe can stretch out from the mounting portion.
Shown in Fig. 2 A, operating parts 67 is located such that its lower end slightly is positioned at the top bottom of hermetic unit 63.Valve member 65 is contact valve seat part 46a closely.Similarly, in the ink supply side, valve member 32 closely contacts valve seat part 46a by pushing part 46b.Shown in Fig. 2 B, in the ink supply side, when print cartridge 1 being installed, the front end of pumping ink pipe 12 promotes valve member 32 upwards, thereby opens valve system 23.
In air guiding side, the front end of operating parts 67 contacts the bottom of recessed 3d, and the valve seat part 46a of support member 46 moves down relatively, thereby opens valve system 24.
Packing print cartridge 1 under decompression state.Also to 16 decompressions of black chamber.When the valve system 23 of the valve system 24 of air guiding side and ink supply side is roughly opened simultaneously, occur flowing from the China ink of pumping ink pipe 12 to black chamber 16.But check-valves 60 has prevented the adverse current of residual China ink in the runner between pumping ink pipe 12 and record head 7.And air can be supplied opening 91 flow to black chamber 16 fast by cylindrical parts 25 top from air.Therefore, even owing to the falling of print cartridge 1 in during transportation packing makes China ink enter cylindrical parts 25, these China inks also bring back in the black chamber 16 along with flowing of air.Suppose between the installation period that print cartridge 1 is installed to mounting portion 3 print cartridge 1 by perk, and the valve member 32 of hypothesis ink supply side is than valve member 65 Zao the opening of air guiding side, it is mobile above-mentioned quick China ink from pumping ink pipe 12 to black chamber 16 then to occur.But, close ink supply opening 21 thereby check-valves 60 rises membrane portions 60b owing to flowing, thereby prevented that this from flowing.Advantageously, the length of the operating parts 67 by pumping ink pipe 12 and valve member 65 suitably are set makes the valve system 24 of air guiding side than valve system 23 Zao the opening of ink supply side, to prevent the quick black adverse current from pumping ink pipe 12.
Under normal condition, the membrane portions 60b of check-valves 60 is owing to its gravity descends to drop on position away from ink supply opening 21.Be supplied to record head 7 from the China ink of black chamber 16 communication passage 58 and the pumping ink pipe 12 by ink supply opening 21, valve member 32.Along with the China ink from black chamber 16 flows, air is supplied to the top of black chamber 16 by cylindrical parts 25 from air supply opening 91.At this moment, be positioned to interval, inside at the cylindrical part 66 of the valve member 65 of air guiding side, so that guarantee air flow channel from cylindrical parts 25.
In addition, in record operating period, the China inks in the ink supply pipe 4 are because inertia with the moving of balladeur train 8, and is managed 4 interior pressure changes.But,, flow so can allow the slight China ink between pumping ink pipe 12 and black chamber 16 that causes owing to the pressure variation because check-valves 60 makes ink supply opening 21 open wide under aforesaid normal condition.Thereby the pressure that can reduce in the record head 7 changes, and makes that stablizing venting becomes possibility.
Be to be understood that to obtain various improvement that for example, in the above-described embodiments, check-valves 60 manufactures the umbrella shape that is formed by umbrella part and shaft portion.But, one side can adopt make rectangular membrane fix and allow structure that other limit opens and closes as check-valves.
And the air guide path of mounting portion can be stretched out with the hollow cylindrical shape that is similar to pumping ink pipe 12, and the valve system 24 of air communication side can have the structure identical with the valve system 23 of ink supply side.In addition, pumping ink pipe 12 can have the shape of not stretching out from the mounting portion, and the valve system 23 of ink supply side can have the structure identical with the valve system 24 of air communication side.
In addition, replace valve system 23,24, can engage with rubber stopper and communication chamber 30,50, and hollow aciculiform pumping ink pipe that stretches out from the mounting portion and air guiding tube can insert by this rubber stopper.
Then further explain check-valves 60 with reference to figure 7.Fig. 7 is the perspective view of check-valves 60.Check-valves 60 usefulness rubber-like resin materials are whole to be formed, and has umbrella shape membrane portions 60b and the shaft portion 60c that links to each other with this membrane portions 60b in the face of ink supply opening 21.Form jut 60a at shaft portion 60c place.This shaft portion 60c slidably inserts the axis hole 1n with the 21 adjacent formation of ink supply opening.Under normal operation, jut 60a is because the gravity of check-valves 60 self and vertically falling with the top surface of diapire 1e engages, and situation is that membrane portions 60b and ink supply opening 21 leave the space.Therefore, under normal condition, the China ink in the black chamber 16 can flow to communication chamber 30 from ink supply opening 21.On the other hand, when mobile from communication chamber 30 to black chamber 16 occurring, membrane portions 60b is raised with shaft portion 60c, and membrane portions 60b closely covers ink supply opening 21 and prevents adverse current.
Then will describe print cartridge 1 in detail according to another embodiment of the present disclosure.
Shown in Fig. 8 A-10, print cartridge 1 is equipped with: main body case 1a; Valve system 23; Valve system 24; Means for screening 22, this means for screening 22 stop the residual black light of measuring of detection that sends from the light radiating portion of sensor 14; With cap spare 1f, the bottom of the main body covered case 1a of this cap spare 1f.
As shown in figure 10, form the extension 34 that reaches the outside a little along its short transverse in the approximate centre position of the sidewall sections of main body case 1a.The light barrier 59 of aftermentioned means for screening 22 is arranged in the space of extension 34 inboards.In addition, under the state when print cartridge 1 is installed in the mounting portion 3, extension 34 is clipped between the light radiating portion and light receiving part of the sensor 14 that is arranged on 3 places, mounting portion.And top 1b welding is at the top ends place of main body case 1a.Therefore, the black chamber 16 in the top 1b sealed body case.
Between two communication chamber 30,50, be formed for China ink is injected the hand-hole 17 in the black chamber 16 of empty cartridge 1.In this hand-hole 17, synthetic rubber plug spare 18 is interference fit.In addition, the deep end of hand-hole 17 links to each other with black chamber 16 in the main body case 1a.To inject the pin (not shown) and pass plug part 18 insertion hand-holes 17, China ink is injected black chamber 16 by this injection pin.
Whole formation is used for the cylindrical part 38 that is communicated with black chamber 16 and communication chamber 30 at the part place of diapire 1e.Lower end at cylindrical part 38 provides film portion 42, and this film portion 42 is closed the communication passage that is formed in the cylindrical part 38.On the other hand, whole two cylindrical parts 47 and 48 that are used for being communicated with that form at the part place of diapire 1e with black chamber 16 and communication chamber 50.Lower end at cylindrical part 48 provides film portion 49, and this film portion 49 is closed the communication passage that is formed in the cylindrical part 47,48.In addition, the upside at cylindrical part 47 provides the cylindrical parts 25 that extends to 16 upper ends, black chamber.
Shown in Figure 10-11B, valve system 23 is equipped with support member 46 and the valve member 32 that is contained in this support member 46, and this support member 46 roughly forms cylindrical by synthetic rubber and has elasticity.Form with pushing part 46b, valve seat part 46a and coupling part 33a by integral body and to construct support member 46 from the positioned in sequence of the upside (black chamber 16 sides) of support member 46.
Make the lower surface of valve member 32 contact the upper surface (at the end face of black chamber 16 sides) of valve seat part 46a, and be formed on the upwardly extending opening 41 of upper and lower at a part of valve seat part 46a place of central axis side.In the 33a of coupling part, form the guiding channel 40 that is communicated with and extends with opening 41 downwards, and this guiding channel 40 forms the taper that lower diameter broadens.Form cannelure 40a around guiding channel 40.The feasible wall portion that forms guiding channel 40 is easy to strain on the direction of the diameter increase of guiding channel 40.Therefore, when pumping ink pipe 12 was inserted guiding channel 40, the tight ness rating of guiding channel 40 and pumping ink pipe 12 increased, and has significantly prevented black leakage.In addition, because this wall portion is out of shape on the direction of the diameter increase of guiding channel 40, even pumping ink pipe 12 inserts guiding channel 40 under heeling condition or bias state, pumping ink pipe 12 also inserts guiding channel 40 exactly.
The propulsive units 37 that pushing part 46b has the cylindrical side wall part 36 that rises to black chamber 16 sides from the circumferential side portion of valve seat part 46a and promotes comprehensively towards inward direction radially from the upper end of this sidewall sections 36.The lower surface contact valve member 32 of propulsive units 37.Elastic force by sidewall sections 36 and propulsive units 37 pushes valve member 32 downwards.In addition, at the inner opening 37a that form of propulsive units 37, make integrally formed sidewall sections 36 and propulsive units 37 strain at an easy rate.
Shown in Figure 11 A-12, valve member 32 has: the bottom 57 of contact valve seat part 46a; From the extended cylinder valve sidewall sections 56 of the circumferential side portion of this bottom 57; With from the bottom 57 core to black chamber 16 sides stretch out than valve sidewall sections 56 far away puncture part 52.
On the lower surface of bottom 57, form the protrusion 39 of stretching out to valve seat part 46a side.When pushing part 46b makes valve member 32 be pressed to valve seat part 46a side and when protrusion 39 closely contacted the upper surface of valve seat part 46a, valve member 32 was closed the opening 41 of valve seat part 46a, thereby closes the ink supply runner.And, in the bottom 57 in protrusion 39 periphery with at the part place of valve sidewall sections 56 inside circumference, form a plurality of communication passage 53 in along the circumferential direction equidistant position, these communication passage 53 connect the space of valve members 32 above and belows.
Shown in Figure 11 A-12, puncture part 52 and constitute by four plate 52a, 52b, 52c and 52d, these four plates assemble cross in plane, and 57 approximate centre partly locates upwards to be provided with this four plates in the bottom.In addition, between four plate 52a-52d, form the groove 54 that extends along the vertical direction respectively.And, puncture part 52 and pass the opening 37a of pushing part 46b inside and protrude upward.As shown in figure 10, the front end that punctures part 52 is positioned to slightly be positioned at the below of film portion 49.
When on mounting portion 3, print cartridge 1 being installed, pumping ink pipe 12 is inserted guiding channel 40.Then, the opposing of the front end of pumping ink pipe 12 pushes the pushing force of part 46b and rises valve member 32.Valve member 32 moves up when making pushing part 46b distortion, thereby the protrusion 39 of valve member 32 is separated with valve seat part 46a.At this moment, shown in Figure 10 and 11B, because the front end that punctures part 52 of the valve member 32 that moved up punctures film portion 42, so the China inks in the black chamber 16 flow into communication chamber 30, thereby the communication passage 53 of China ink by valve member 32 is supplied to ink jet print head 7 sides from pumping ink pipe 12.
As shown in figure 10, means for screening 22 is arranged in the space at place, 16 bottoms, black chamber.Means for screening 22 is equipped with: light barrier 59, and this light barrier 59 is transmitted light not; Hollow float 61; Connector 62, this connector 62 connects light barrier 59 and float 61; With brace table 64, this brace table 64 is arranged on the upside of diapire 1e, and the mode support connecting piece 62 to pivot.Light barrier 59 and float 61 are separately positioned on the place, end of connector 62.Arrange connector 62 in the mode that the pivoting point around brace table 64 pivots in the vertical plane vertical with diapire 1e.
Therefore, residual China ink amount is positioned at Mo Zhongshi than whole float 61 big and when an end place that is arranged on connector 62 in black chamber 16, float 61 is owing to buoyancy floats, thereby the light barrier 59 that is arranged on other end place stops the light from light radiating portion (position among Figure 10 shown in the solid line).But the part of and float 61 low when residual black quantitative change in the black chamber 16 is when come out in the surface of China ink, and the buoyancy that imposes on float 61 reduces, thereby float 61 reduces.Then, light barrier 59 moves above extension 34, and moves to light barrier 59 and do not stop position (position among Figure 10 shown in the chain-dotted line) from the light of light radiating portion.Therefore, cross extension 34 from the light of light radiating portion along the linear light path transmission, and received by light receiving part.As a result, sensor 14 detects the lower state of residual China ink amount in the black chamber 16.
Shown in Fig. 8 A-10, the material by the main body covered case 1a of usefulness such as ultrasonic adhesion lower end is fixed to cap spare 1f on the main body case 1a.Position on corresponding with valve system 23 and the valve system 24 respectively bottom of cap spare 1f forms two hermetic units 63 that stretch out respectively downwards.These hermetic units 63 make: when being placed on print cartridge 1 on the desk, the China ink that enters the mouth around pumping ink pipe 12 or air guiding tube 13 is difficult to stick on the table surface.
The internal structure that is used for the China ink in the black chamber 16 is directed to the black chamber 16 of ink supply opening 70a-70d is then described.
As shown in figure 13, on the diapire 1e upper surface that forms black chamber 16 basal surfaces, form ratio low slightly deep 72a on every side.In addition, in plane roughly the center position at deep 72a plate 71 is provided.On plate 71, be formed for the China ink in the black chamber 16 being supplied to four ink supply opening 70a-70d of ink-jet recording apparatus 2 by valve system 23.In these four ink supply opening 70a-70d, ink supply opening 70a is circular in plane, and roughly being positioned at the central part office of plate 71, three ink supply opening 70b, the 70c and the 70d that have the square toroidal in plane are arranged side by side around circular ink supply opening 70a in a circumferential direction.China ink chamber 16 and communication chamber 30 are communicated with by these four ink supply opening 70a-70d, to allow by valve system 23 China ink of discharging from ink supply opening 70a-70d being supplied to ink-jet recording apparatus 2.
Because four ink supply opening 70a-70d are formed on the plate 71 that is arranged on 72a place, deep, so four ink supply opening 70a-70d are positioned at the position higher slightly than deep 72a.Therefore, even the dust that produces when forming main body case 1a etc. remain in the black chamber 16, this dust etc. also remain in 72a place, deep, and are difficult to the ink supply opening 70a-70d outflow higher than deep 72a from the position.Therefore omitted the filter that is used to filter from the China ink of ink supply opening 70a-70d discharge.
Form three extensions 75 (leading black part) on the basal surface of black chamber 16 respectively, these three extensions 75 stretch out from basal surface 72, and from three side surfaces 73,74 of black chamber 16 extend to ink supply opening 70a-70d near.These extensions 75 are set, make them point to ink supply opening 70a-70d from three directions around ink supply opening 70a-70d.Therefore, even residual black quantitative change must be lower in the black chamber 16, near the China ink the side surface 73,74 of black chamber 16 is also by three extensions, 75 guiding ink supply opening 70a-70d.And the end opposite with ink supply opening 70a-70d of extension 75 links to each other with side surface 73,74.Therefore, when almost not having China ink in the black chamber 16, the China ink even the ink supply opening 70a-70d that can lead exactly from the edge 77 of the easy residual China ink between basal surface 72 and side surface 73,74.
Figure 14 is the cutaway view of cross section VI among Figure 13.Figure 15 is the cutaway view of cross section VII among Figure 13.Figure 16 is the cutaway view of cross section VIII among Figure 13.Figure 17 is the cutaway view of the cross section IX of Figure 13.Shown in Figure 14-16, radius of curvature r1, the r2 at the edge 76 between each extension 75 and basal surface 72 are littler than the radius of curvature R 1 at the edge 77 between side surface 73,74 and basal surface 72.In other words, near the edge 76 place's curvature ink supply opening 70a-70d are bigger, and this makes this edge have sharp shape.In addition, shown in Figure 14 and 16,76 places, edge between extension 75 and basal surface 72, the radius of curvature r2 that near the position 76b ink supply opening 70a-70d (position of cross section VIII) locates is littler than the radius of curvature r1 that locates at the position 76a (position of cross section VI) away from ink supply opening 70a-70d.In other words, the curvature at the edge 76 between extension 75 and basal surface 72 is along with becoming big near ink supply opening 70a-70d, and this makes this edge have sharp shape.Therefore, the capillary force that imposes on China ink by near the edge the ink supply opening 70a-70d becomes bigger than the capillary force that applies at the edge away from the position of ink supply opening 70a-70d.Therefore, when residual black quantitative change in the black chamber 16 must be low, the ink supply opening 70a-70d that led exactly of the China ink on the basal surface 72.Thereby preventing that China ink from attracteding to away from the position of ink supply opening 70a-70d makes China ink in this position separately and remain in this position.
In addition, shown in Figure 15 and 17, make that the radius of curvature R 1 at horizontally extending edge 77 is littler than the radius of curvature R 2 at the edge 78 that extends up and down between side surface 73,74 and basal surface 72 between two side surfaces 73,74.Therefore, near the ratio of curvature at the edge 77 the ink supply opening 70a-70d is big away from the curvature at the edge 78 of ink supply opening 70a-70d.In addition, up and down the edge 78 of Yan Shening, horizontally extending edge 77, link to each other with edge 76 between each extension 75 at basal surface 72, and the radius of curvature of these three edge 76-78 is along with diminish near ink supply opening 70a-70d (it is big that curvature becomes) (r1＜R1＜R2).Therefore, when the China ink surface in the black chamber 16 reduced with the consumption of inking, the edge 76-78 that changes curvature was the China ink ink supply opening 70a-70d that leads exactly from the position higher than ink supply opening 70a-70d.
Make and forming edge between two surfaces of black chamber 16, constant in an edge 77,78 incurvatures at edge 77 between side surface 73,74 and the basal surface 72 and the edge 78 between two side surfaces 73,74.Like this, for each combination on two surfaces and change these curvature.By change the curvature at edge between two surfaces for each combination on these two surfaces, the curvature that can realize edge wherein at an easy rate is along with becoming big structure near ink supply opening 70a-70d.In addition, shown in Figure 15 and 17, make that section 77A, the 77B of connecting portion office at edge 77,78 places of two surfaces between these two surfaces is parallel with these two surfaces respectively with 78A, 78B.Therefore, between these two surfaces, can form edge 77,78 at an easy rate with predetermined curvature.
According to the print cartridge of above explanation, the curvature of the edge 76-78 of the part of the black chamber 16 of feasible conduct formation is bigger near ink supply opening 70a-70d the time.Like this, these edges have the curvature of mitigation to sharp-pointed curvature near ink supply opening 70a-70d the time, thereby near the edge of capillary force ink supply opening 70a-70d that imposes on China ink increases.Thereby prevent China ink from attracteding to ink supply opening 70a-70d and separately at ink supply opening 70a-70d place.
Then explanation is merged to the various variations in the foregoing description.But, for have with the foregoing description in the element of element same structure, use identical Reference numeral, thereby omit description of them.
1) shape of leading the extension of China ink part is not limited to the shape in the foregoing description, but can appropriate change.For example, as shown in figure 18, can extend to this ink supply opening 80 to the extension 85 that ink supply opening 80 extends from the side surface 83,84 of black chamber 81.In this case, the China ink on the basal surface 82 of black chamber 81 is by this extension 85 ink supply opening 80 that leads exactly.In addition, the shape of the number of extension and black chamber also can appropriate change.
2) China ink the is led China ink part led of ink supply opening is not limited to extension in the foregoing description.For example, as shown in figure 19, leading the China ink part can be made of the groove 89 on the basal surface 88 that is formed on black chamber 87.Here, Figure 20 A is the cutaway view of cross section X among Figure 19, and Figure 20 B is the cutaway view of cross section XI among Figure 19.Be made into feasible at the basal surface 89a of groove 89 and the edge 90 between the side surface 89b: the curvature that near the position 90b ink supply opening 86 (Figure 20 B) locates is made greatlyyer than the curvature of locating away from the position 90a (Figure 20 A) of ink supply opening 86, thereby edge 90 is made into sharp shape.Therefore, the China ink on the basal surface 88 is by the groove 89 ink supply opening 86 that leads more accurately.
3) except that forming the edge between the surface of black chamber and leading edge between the China ink part, for example extension and basal surface can be configured such that curvature becomes big to the ink supply opening to form the edge of interior shape of black chamber.For example, can form the edge, to increase curvature than the edge of close ink supply opening by other extension or groove are provided.
Then will describe structure in detail according to the print cartridge 1 of another embodiment of the present disclosure.Figure 21 is the cutaway view of this print cartridge 1, and Figure 22 is the upward view of main body case 1a.
Have black chamber 16 in the print cartridge 1, this China ink chamber 16 is formed for storing the space of China ink.Print cartridge 1 is made of main body case 1a, top 1b and cap spare 1f, and main body case 1a has diapire 1e and the sidewall 1c that forms black chamber 16, the top surface that opens wide of the main body covered case 1a of top 1b, the diapire 1e of the main body covered case 1a of cap spare 1f.Form two exposed hole 1fa, 1fb at this cap spare 1f place, these two exposed hole 1fa, 1fb are exposed to mounting portion 3 with aftermentioned valve system 23,24.By top 1b and cap spare 1f are adhered to upward formation print cartridge 1 of main body case 1a.Top 1b, main body case 1a and cap spare 1f are made of resin material.
End (right side among Figure 21) at cap spare 1f upward forms the plate shape cap extension 1d that reaches on the main body case 1a side, and forms insertion portion 1g on main body case 1a, and cap extension 1d inserts this insertion portion 1g.Therefore, because this structure provides the location for the installation of main body case 1a and cap spare 1f, can prevent that mistake from installing, and can reduce the generation of substandard products.
In diapire 1e, form a plurality of ink supply openings 21.Described a plurality of ink supply opening 21 directly is communicated with the communication chamber 30 of China ink in being used to supply black chamber 16.This communication chamber 30 is integrally formed in cylindrical wall 30a inboard, and forms from the lower surface (side of black chamber 16) of diapire 1e with stretching out.In addition, in diapire 1e, form air guide opening 26.This air guide opening 26 directly is communicated with communication chamber 50, enters black chamber 16 with the guiding air.This communication chamber 50 is integrally formed in cylindrical wall 50a inboard, and forms from the lower surface (side of black chamber 16) of diapire 1e with stretching out.When on mounting portion 3, print cartridge 1 being installed, respectively pumping ink pipe 12 and air guiding tube 13 are inserted communication chamber 30 and communication chamber 50.
In communication chamber 30, provide valve system 23, to stop the connection between print cartridge 1 inside and outside.In communication chamber 50, provide valve system 24, to stop the connection between print cartridge 1 inside and outside.The details of valve system 23,24 will be described in the back.
The connection that described a plurality of ink supply opening 21 allows between communication chamber 30 and the black chamber 16.Described a plurality of ink supply opening 21 is round-formed by three squares, and each square circle is arranged as and roughly forms a triangle (seeing Figure 22).And form axis hole 1n at the center position of ink supply opening 21.Insert the check-valves 60 that roughly forms umbrella shape by axis hole 1n.Constitute check-valves 60 by rubber-like elastic resin material.
As shown in figure 21, check-valves 60 is in the face of the lower surface of ink supply opening 21, and by elasticity umbrella shape membrane portions 60b with roughly pass the shaft portion 60c that axis hole 1n extends to black chamber 16 from the center of membrane portions 60b and constitute.Shaft portion 60c has the jut 60a of the sphere of being roughly, and this jut 60a has the diameter bigger than the internal diameter of axis hole 1n, and shaft portion 60c is supported in the mode that can slide along the vertical direction between membrane portions 60b and jut 60a by axis hole 1n.
On diapire 1e, the hollow cylindrical member 25 that is hollow cylindrical forms with diapire 1e is whole, and from diapire 1e along extending towards the direction (hereinafter referred to as " first direction ") of the top surface that opens wide of main body case 1a.The black surface of the upper end open 25a of hollow cylindrical member 25 in black chamber 16 opened wide.Hollow cylindrical member 25 forms taper, and wherein the profile of inner flow passage 25b and internal diameter all narrow down gradually to upside (away from the direction of aftermentioned block piece 100).The coupling part 25c that links to each other with diapire 1e of hollow cylindrical part 25 forms the shape that enlarges to diapire 1e from hollow cylindrical member 25.In addition, the cylindrical wall 50a of communication chamber 50 is from the lower end of coupling part 25c and cross diapire 1e and hollow cylindrical member 25 integral body form cylindrical.Thereby the smooth inner flow passage 25b that connects chamber 50 and hollow cylindrical member 25 of cone-shaped inner surface by air guide opening 26 and coupling part 25c.In other words, an end of hollow cylindrical member 25 is communicated with air guide opening 26, and the other end is communicated with black chamber 16.Therefore, inner flow passage 25b is formed for guiding the runner of air.
Below explain the valve system 23,24 that is arranged on communication chamber 30,50 places.
Pushing part 46b is formed by sidewall sections 36, propulsive units 37 and the opening 37a in the center of propulsive units 37, this sidewall sections 36 is by upwards the holding up at the circumference of black chamber 16 sides from valve seat part 46a, this propulsive units 37 links to each other with propulsive units with sidewall sections, so that at black chamber 16 side contacts valve members 32.Pushing part 46b by sidewall sections 36 and propulsive units 37 with lean against valve seat part 46a on the direction that contact of valve member 32 on elastic force push valve member 32.Under normal condition, valve member 32 links to each other with valve seat part 46a.And because pumping ink pipe 12 inserts guiding channel 40, thereby upwards promote valve member 32.Therefore, sidewall sections 36 elongation also makes propulsive units 37 tilt, with the space of the China ink that is formed for flowing between valve member 32 and valve seat part 46a.
The position in 57 protrusion 39 outsides along the circumferential direction forms a plurality of communication passage 58 in the compartment of terrain to valve sidewall sections 51 from the bottom, the connection between the valve seat part 46a side of these communication passage 58 permission black chamber 16 sides and valve member 32.
Valve system 24 has the structure that is similar to valve system 23 structures.Therefore, use identical mark, thereby omit description of them for identical parts.In valve system 24, valve member 79 is equipped with bottom 96, valve sidewall sections 97, valve member projection 98 and communication passage 99, and these parts are the shape identical with those parts of valve member 32.In addition, the approximate centre of 96 upper surface partly locates also to be equipped with block piece 100 in the bottom, and this block piece 100 stretches out more than valve sidewall sections 97 to black chamber 16 sides.Block piece 100 has the little external diameter of internal diameter of opening 37a than pushing part 37, and and opening 37a between pass opening 37a with an interval.And, for block piece 100, form in the outer diameter D 1 at the 100a place, upper end opposite with the bottom 96 of valve member 79 slightly littler than the inside diameter D 2 on the lower end side of the inner flow passage 25b of hollow cylindrical part 25, and than the inside diameter D 3 big (seeing Figure 23 A) at the upper side place of inner flow passage 25b.The inside diameter D 3 that inner flow passage 25b forms from the inside diameter D 2 of lower end to top is somewhat taper.Therefore, when the upper end of block piece 100 100a engaged, upper end 100a was connected with the inboard friction of inner flow passage 25b, and is in " interlock " state.The elastic force of the pushing valve member 79 by pushing part 46b discharges this state.The upper end 100a of block piece 100 fully closely closes flowing of inner flow passage 25b and blocks air.The upper end 100a of block piece 100 forms taper, and wherein the direction top external diameter at inner flow passage 25b reduces.
When on mounting portion 3 print cartridge 1 being installed, pumping ink pipe 12 and air guiding tube 13 insert corresponding guiding channel 40 in the diameter that enlarges cylindrical part 45, and 57,96 places contact corresponding valve member 32,79 in the bottom.After this, when further promotion print cartridge 1, each valve member 32,79 all is being extruded on the direction of black chamber 16, and separates with valve seat part 46a.Thereby be formed for service duct that air is directed to the guiding channel of print cartridge inside and is used for China ink is fed to print cartridge 1 outside.Because print cartridge 1 is in decompression state when packing, so produce flowing to black chamber 16 simultaneously from pumping ink pipe 12 and guiding tube 13.But check-valves 60 has prevented the adverse current of residual China ink in the runner between pumping ink pipe 12 and record head 7, so air flow to the top of black chamber 16 fast by hollow cylindrical member 25 from air guiding tube 13.Like this, even make China ink enter the hollow cylindrical member 25 of communication chamber 50 owing to print cartridge 1 during transportation falls, these China inks are also got back in the black chamber 16.At this moment, because communication chamber 50 is by the cone-shaped inner surface of coupling part 25c and smooth connection of inner flow passage 25b of hollow cylindrical member 25, so China ink flows fast.
The valve member 32 of ink supply side the quick black adverse current from pumping ink pipe 12 to black chamber 16 then occurs than valve member 79 Zao the opening of air guiding side when supposing on mounting portion 3 print cartridge 1 to be installed.But check-valves 60 cut out ink supply opening 21 owing to flowing, thereby had prevented that this from flowing.Preferably, by the length of pumping ink pipe 12 and air guiding tube 13 suitably is set, make the valve system 24 of air guiding side can be exactly than valve system 23 Zao the opening of ink supply side, thereby prevent quick black adverse current from pumping ink pipe 12.
Under normal conditions, the membrane portions 60b of check-valves 60 is owing to its gravity drops to position away from ink supply opening 21.Along with the China ink from black chamber 16 flows, air is supplied to the top of black chamber 16 from air guiding tube 13.
Operation below with reference to Figure 23 A and 23B explanation valve system 24.Figure 23 A shows print cartridge 1 and correctly is installed in state on the mounting portion 3.Air guiding tube 13 upwards promotes valve member 79, thereby is formed for guiding the guiding channel of air as mentioned above.At this moment, distance (amount of movement) constant that separates of valve member 79 and valve seat part 46a.In addition, there is predetermined space between front end 100a that valve member 79 is located such that at block piece 100 and the inner flow passage 25b, so that guarantee to be used for the passage of air.
In situation shown in Figure 23 B, valve member 79 is accidental by rod spare A promotion and mobile that the ratio distance that (state shown in Figure 23 A) valve member 79 moves when print cartridge 1 is correctly installed is big.Under this state, the front end 100a of the block piece 100 of valve member 79 enters inner flow passage 25b, and closes the runner of inner flow passage 25b, thereby block piece 100 remains in the inner flow passage 25b under the state that above-mentioned friction connects.
Such as explained above, in above-mentioned print cartridge 1, when valve member 79 moved greatlyyer than the distance that moves when print cartridge 1 is correctly installed accidentally, block piece 100 was closed inner flow passage 25b.Therefore, even communication chamber 50 is opened, air pressure does not act on the China ink yet, thereby the possibility that China ink leaks from communication chamber 50 is restrained in minimum of a value.
In addition, if valve member 79 is pushed far than preset distance as mentioned above, when then the elongation of the pushing part 46b of support member 46 is installed than print cartridge 1 is correct big (seeing Figure 23 B).Therefore, pushing part 46b may damage, and perhaps valve member 79 may eject from the inside of pushing part 46b.But, because inner flow passage 25b has limited the amount of movement of block piece 100, so can prevent to push the damage of part 46b exactly or valve member 79 is ejected from the inside of pushing part 46b.
And inner flow passage 25b forms taper, wherein in it radially the upside of print cartridge narrow down.The front end 100a of block piece 100 also forms taper, and wherein its outer radial inner flow passage 25b narrows down.Therefore, even occur tilting on the direction that promotes valve member 79, block piece 100 also inserts among the inner flow passage 25b exactly.
Then will describe structure in detail according to the print cartridge 1 of another embodiment of the present disclosure.Figure 24 is the cutaway view of print cartridge 1.For with identical parts of parts in the previous embodiment, use identical mark, thereby omit explanation them.
Different with the embodiment of Figure 21, support member 46 is not equipped with cannelure between cylindrical part 45 and circumferential section 45a.But other each parts all have the similar function of those parts that combines with valve member 32 and pumping ink pipe 12 among the embodiment with Figure 21.Therefore omit detailed explanation to them.
In this embodiment, than the position of circumferential wall 45a side, form hermetic unit 101 circlewise around opening 40 near mounting portion 3 sides.Valve member 79 also is equipped with and passes the operating parts that roughly is a shape 102 that the opening 40 that is formed in the bottom 96 extends to mounting portion 3 sides.
Mounting portion 3 is similar to the embodiment of Fig. 2 A, and upright guide part 3b constitutes by base portion 3a with from the both sides of base portion 3a for it, and is provided with the pumping ink pipe 12 that stretches out therefrom.Form female parts 103 at a part of base portion 3a place that links to each other with pumping ink pipe 12.In female parts 103, provide and to absorb China ink and have flexible porous member 104.Make that the size of porous member 104 is bigger than the size of the exposed hole 1fa of cap spare 1f.In addition, replace air guiding tube 13, form the air guide path 105 that is communicated with atmosphere.In its circumferential section, make female parts 106 bigger than the size of the exposed hole 1fb of cap spare 1f.
Be similar to the embodiment of Fig. 2 A, when print cartridge 1 was installed on mounting portion 3, pumping ink pipe 12 entered guiding channel 40 when enlarging cylindrical part 45, and upwards promoted the valve member 32 of valve system 23 to black chamber 16, to form ink-feed channel.When finishing the installation of print cartridge 1 on mounting portion 3, around the jut contact porous member 104 of exposed hole 1fa.Therefore, even the China ink that China ink leaks from valve system 23 or adheres in the pumping ink pipe 12 drips when for example repeating to mount and dismount print cartridge 1, China ink also can be absorbed by porous member 104.Therefore, can be being remained on minimum of a value by black contamination of heavy.
In addition, in air guiding side, hermetic unit 101 closely contacts the female parts 106 of base portion 3a by contact and strain.Thereby the inside of hermetic unit 101 and outside seal.At this moment, operating parts 102 is in the bottom of the position contact female parts 106 that departs from air guide path 105.When print cartridge 1 be installed into a step when carrying out, promote valve members 79 to black chamber 16, be similar to the air guide path of the embodiment of Fig. 2 A with formation.
In the print cartridge 1 according to this embodiment, the structure of the print cartridge 1 among the structure of block piece 100 and the embodiment of Figure 21 is identical shape, and the effect that is similar among first embodiment can be provided.
Should be understood that, can obtain various improvement.For example, in the above-described embodiments, block piece 100 and valve member 79 integral body are respectively made.But valve member and block piece can be choristas, perhaps can have the structure that connects them or connect their operation.
In addition, hollow cylindrical member 25 rises from diapire 1e on first direction, and forms with diapire 1e is whole.The black surface of the upper end open 25a of hollow cylindrical member 25 in black chamber 16 opened wide, and the end opposite of inner flow passage 25b links to each other with communication chamber 50.
Upper end open 25a is gradient with respect to first direction, and is tilting to sidewall 1c with to the direction of diapire 1e from the central axis of print cartridge 1.Therefore, owing to having, upper end open 25a is roughly oval-shaped plane surface, so the area of upper end open 25a is bigger than the cross-sectional area on the direction vertical with first direction of inner flow passage 25b.
On the circumferential wall 27 of hollow cylindrical member 25, top face 25d is the surface that is roughly the plane, and it is roughly parallel to diapire 1e.The end face except that top face 25d of circumferential wall 27 forms along the inclined-plane of the circumference of upper end open 25a.
The diameter as major axis on this bevel direction of upper end open 25a is about 1mm, and is preferably 2mm or bigger.This be because: because 30mN/m-45mN/m during 25 ℃ of the surface tension of the China ink that uses in this embodiment so even China ink adheres on the upper end open 25a, also be difficult to produce meniscus, even produce, also is easy to destroy along with the introducing of air.
The internal diameter of inner flow passage 25b preferably is about 0.8mm or bigger.This be because: if the internal diameter of inner flow passage 25b less than 0.8mm, then the China ink may on the direction of closing inner flow passage 25b, form meniscus.If the internal diameter of inner flow passage 25b is about 0.8mm or bigger, then be difficult to form meniscus, even and form, also be easy to destroy along with the introducing of air.And, even China ink is guaranteed that also the runner with enough cross-sectional areas is used for the introducing of air, and can not enlarged markedly resistance along the inner surface adhesion of inner flow passage 25b.
Because above-mentioned hollow cylindrical member 25 forms with the main body case 1a integral body that top surface opens wide, thus the molded production main body case of instrument 1a can be passed through at an easy rate, thus reduce production cost.In addition, can omit linkage editor, thereby improve operating efficiency.And, can prevent following adverse effect, promptly since China ink among inner flow passage 25b, flow and introduce air improperly from coupling part 25c.
Before user after the production was installed to ink jet recording device 2 to print cartridge 1, when print cartridge 1 tilted or falls, China ink can stick to the open end of hollow cylindrical member 25, and perhaps China ink can enter its inboard.Because air flows into print cartridge 1 fast under decompression state as mentioned above, the most of China ink in the hollow cylindrical member 25 is got back to black chamber 16.But if this moment, China ink remained in the hollow cylindrical member 25, if perhaps after this user 3 is pulling down print cartridge 1 and tilt or the print cartridge 1 that drops from the mounting portion, then the inner flow passage of hollow cylindrical member 25 may be blocked.Therefore, can reduce China ink forms meniscus in upper end open 25a possibility.And even form meniscus, this meniscus also can destroy along with the introducing of air at an easy rate.In addition, the internal diameter of inner flow passage 25b has the size that does not wherein form meniscus on the direction that stops inner flow passage 25b.Therefore, correctly carry out the introducing of air and do not cause fluctuation, and can realize ink supply reposefully, thereby allow the discharge of China ink to keep evenly to record head 7.
The next one of explaining the upper end open 25a of hollow cylindrical member 25 with reference to figure 25A-26B improves example.
Shown in Figure 25 A and 25B, the upper part of hollow cylindrical member 25 can form stairstepping.Upper end open 25a can be made of semicircle plane 25aa, 25ac and rectangle plane 25ab, and has non-circular circumference, and semicircle plane 25aa, 25ac are roughly parallel to diapire and are in different height, and rectangle plane 25ab is approximately perpendicular to diapire 1e.
Shown in Figure 26 A and 26B, the upper end open 25a of air guide element 25 can be formed with the inclined-plane with respect to first direction, and extension 244a can the side from front opening 25a stretch out on first direction.Therefore, front opening 25a roughly forms ellipse, and by as the plane 245a of the upper end of extension 244a, comprise that the plane 245b of most of front opening 25a constitutes circumference with the vertical plane 241a that is connected plane 245a, 245b.
In above-mentioned improvement example, make that the internal diameter of inner flow passage 25b of air guide element 25 is 0.8mm or bigger.This air guide element 25 forms feasible: not only the area of opening 25a is bigger than the cross-sectional area on the direction vertical with first direction of inner flow passage, and the surface of formation opening perimeter is formed by three mutual different planes.Therefore, the China ink that can reduce in upper end open 25a forms the possibility of meniscus, thereby the effect that is similar in the foregoing description can be provided.
Should be understood that, can obtain various embodiment.For example, in the above-described embodiments, the opening of hollow cylindrical member 25 can be by forming with two planes that different angle diagonal angles intersects with respect to first direction, perhaps can form non-circular, the circle that partly cuts for example.
In addition, form hollow cylindrical member 25 on diapire 1e, this hollow cylindrical member 25 forms with diapire 1e is whole, and rises to the top surface that opens wide of main body case 1a from diapire 1e on first direction.The black surface of the front opening 25a of this air guide element in black chamber 16 opened wide.The profile of hollow cylindrical member 25 and inner flow passage 25b form the taper that diameter narrows down gradually to upside.Hollow cylindrical member 25 forms the shape that enlarges to diapire 1e from the top of hollow cylindrical member 25 with the coupling part of diapire 1e.And, the cylindrical wall 50a of communication chamber 50 with from the lower end of coupling part 25c and the order and hollow cylindrical member 25 integral body of crossing diapire 1e form cylindrical.Thereby the smooth inner flow passage 25b that forms communication chamber 50 and hollow cylindrical member 25 continuously of cone-shaped inner surface by coupling part 25c.In addition,, increased the intensity of hollow cylindrical member 25, thereby can prevent that hollow cylindrical member 25 from influencing the distortion that causes when molded or owing to environmental change with the tie point of diapire 1e by coupling part 25c.
As mentioned above, the main body case 1a of above-mentioned print cartridge 1 has the shape that top surface opens wide.Hollow cylindrical member 25 forms with diapire 1e is whole, and is the shape that enlarges to diapire 1e from front opening 25a.Therefore, can pass through the molded manufacturing main body case of instrument 1a at an easy rate, thereby can reduce manufacturing cost.And, form because hollow cylindrical member 25 and main body case 1a are whole, thus linkage editor can be omitted, thus improve operating efficiency.In addition, can prevent following adverse effect, promptly owing to China ink enters the inner flow passage 25b of hollow cylindrical member 25 and introduces air improperly from the coupling part 25c between hollow cylindrical member 25 and the main body case 1a.
According to a demonstration aspect of the present disclosure, there is no need to be provided for to open the projection of the opening of valve member in the installation portion office of ink jet recording device.Therefore following effect is arranged, and promptly location print cartridge and mounting portion become and are easy to when print cartridge is installed to the mounting portion.
According to a demonstration aspect of the present disclosure, when when ink jet recording device is pulled down print cartridge, the pushing part makes valve member contact valve seat part, and prevents that China ink from leaving by opening or evaporate.And, when print cartridge is installed on the ink jet recording device, can be by evenly rising valve member by operating parts and valve member and valve seat part separately being opened valve.
According to a demonstration aspect of the present disclosure, do not need the complicated operations program to be installed in the pressing device of the interior pushing in the zone valve member of location valve member.The effect that therefore manufacturing cost that reduces print cartridge is arranged.
According to a demonstration aspect of the present disclosure, prevent that China ink from leaving or evaporate by opening.
According to a demonstration aspect of the present disclosure, when print cartridge is installed on the mounting portion, can open ink supply opening and air guide opening, thereby can when China ink is supplied to recording equipment, guide air to enter print cartridge.In addition, at least one valve system in first and second valve systems comprises valve seat part and the valve member that can move with respect to valve seat part.Valve member has the operating parts that stretches out in the print cartridge outside, and is configured such that: when print cartridge was installed on the mounting portion, operating parts contact mounting portion made valve member and valve seat part separate.When providing the operating parts that stretches out accordingly with first and second valve systems to the mounting portion, operating parts must seal preventing ink leakage, and manufactures and make it accurately maintain two mutual alignments relation and mutual alignments between ink supply opening and air guide opening between the operating parts that stretches out to concern.But following effect is arranged, promptly can easily be installed to print cartridge on the mounting portion, make easily simultaneously, and on the relation of position, do not need the higher degree of accuracy.
According to a demonstration aspect of the present disclosure, can by simply on the direction of mounting portion mobile print cartridge open two valve systems, thereby better operability is provided.
According to a demonstration aspect of the present disclosure, when on the mounting portion, print cartridge being installed, second valve system must be accurately positioned in the position of the hollow part that is provided with in the mounting portion.But, needn't accurately locate the position of first valve system, thereby following effect is arranged, promptly can make print cartridge at an easy rate, and print cartridge becomes to the installation of mounting portion and is easy to.
According to a demonstration aspect of the present disclosure, do not need the complicated operations program to be installed in the pressing device of the interior pushing in the zone valve member of location valve member.The effect that therefore manufacturing cost that reduces print cartridge is arranged.
According to a demonstration aspect of the present disclosure, following effect is arranged: evenly rise valve by operating operation spare, and by valve portion and valve seat part are separately opened valve.
According to a demonstration aspect of the present disclosure, there is the fluid that prevents to flow to valve system to leak into the effect of outside or evaporation.
According to a demonstration aspect of the present disclosure, following effect is arranged: can make print cartridge at an easy rate, do not need the higher degree of accuracy and fasten with pass, the mutual alignment between the air supply section, thereby can realize the installation of print cartridge on the mounting portion at an easy rate at the pumping unit of the ink supply opening of print cartridge and relation of the mutual alignment between the air guide opening or mounting portion.
In the ink jet recording device in Japan patent application No.H9-85963 co-pending, this ink jet recording device is configured to allow the installation and removal of ink container (hereinafter referred to as print cartridge), is used to keep the retainer of print cartridge that two chambers are provided.Each chamber all is full of porous material, and forms the extension that protrudes upward from the upper end.One end of a porous material links to each other with the air guide opening, and the lower surface of another porous material links to each other with the ink supply opening.
Print cartridge is provided with the through hole that allows each extension to insert at the place, bottom.Extend the film valve that to open valve from these extensions.By print cartridge being installed on the retainer internal communication of these two chambers and print cartridge.
But in packing, the inside of print cartridge is in negative pressure state usually.When print cartridge is installed, to open before the valve that is used for the air guide opening if be used for the valve of ink supply opening, the black adverse current that then is stored in the recording equipment side enters print cartridge.China ink in the print cartridge maintains degassing phase, and if the China ink of having discharged is taken back, then can not keep this state.And, being attracted to print cartridge with inking, the meniscus of the China ink that forms in the nozzle interior of record head is destroyed.Thereby the problem that can not discharge the high-quality China ink is arranged.
Disclosed embodiment of the present invention has considered the problems referred to above, and following print cartridge is provided, and when this print cartridge being installed and safeguard China ink under normal operation and safeguard China ink to the fabulous discharge of record head, this print cartridge can prevent black adverse current to print cartridge.
Have according to the print cartridge of a demonstration aspect of the present disclosure and to be used to store China ink and to be installed to black chamber on the recording equipment main body, and before installing, be in decompression state can connect with dismountable mode.This print cartridge comprises: air guide opening, this air guide opening form with black chamber and are communicated with, and open wide to guide air to enter black chamber interior; First sealing device, this first sealing device sealing air guide opening before print cartridge is installed to the recording equipment main body; Ink supply opening, this ink supply opening form with black chamber and are communicated with, and open wide and to be fed to the outside with the China ink with black chamber interior; Second sealing device, this second sealing device sealed the ink supply opening before print cartridge is installed to the recording equipment main body; And be arranged on check-valves between second sealing device and the black chamber, this check-valves stop China ink from the outside of ink supply opening flowing to the inside of black chamber.
In the print cartridge aspect a demonstration of the present disclosure, air guide opening and ink supply opening are formed at a side of black chamber side by side, and first and second sealing devices are opened along with print cartridge is installed on the recording equipment main body.
In the print cartridge aspect a demonstration of the present disclosure, check-valves makes China ink supply open under normal condition, and has only just be blocked in mobile on its direction when occurring from the outside of ink supply opening to black chamber mobile.
In the print cartridge aspect a demonstration of the present disclosure, the air guide opening is formed on from the first cylindrical wall inside of the lateral profile one-tenth of black chamber.The ink supply opening is formed on from the second cylindrical wall inside of the lateral profile one-tenth of black chamber.First sealing device is arranged on the first cylindrical wall inside with covering air guide opening, and second sealing device is arranged on the second cylindrical wall inside to cover the ink supply opening.
In the print cartridge aspect a demonstration of the present disclosure, check-valves partly is made of shaft portion and film umbrella.Umbrella partly is positioned to face the ink supply opening, and flow out from the ink supply opening to allow China ink in the formation space between ink supply opening and umbrella part.When occurring from the outside of ink supply opening to black chamber mobile, the umbrella part closely contacts and stops the ink supply opening.
In the print cartridge aspect a demonstration of the present disclosure, first sealing device and second sealing device are to comprise valve seat part and the valve gear of the valve member that can move with respect to valve seat part.Valve member is removed from valve seat part along with print cartridge is installed on the recording equipment main body, to open valve.
According to the print cartridge of a demonstration aspect of the present disclosure, between the sealing device of a side that is used to supply China ink and black chamber, provide and prevent that China ink from flowing into the check-valves of black chamber from the outside of ink supply opening.Therefore, when the sealing device of a side that when print cartridge is installed to the recording equipment main body, is used to guide air with the sealing device that is used to supply a side of China ink when opening, prevent China ink from ink supply opening adverse current to the black chamber that is in decompression state.In addition, prevented because the degassing Mo Zhonger that the China ink of recording equipment side is sneaked in the print cartridge degenerates the degassing phase of China ink.And, prevent that the black meniscus of the nozzle interior of record head from damaging, thereby reduce to discharge from the defective China ink of record head.The effect of keeping fabulous recording quality is arranged like this.
According to the print cartridge of a demonstration aspect of the present disclosure, air guide opening and ink supply opening are formed at a side of black chamber side by side, and first and second sealing devices are opened along with print cartridge is installed on the recording equipment main body.Therefore, owing to can open two sealing devices,, print cartridge is easy to so becoming to the installation of recording equipment main body by print cartridge being installed from direction.In addition, even owing to the inclination of print cartridge when installation waits makes a sealing device in two sealing devices at first open, also have to prevent the China ink effect of adverse current as mentioned above.
According to the print cartridge of a demonstration aspect of the present disclosure, check-valves makes China ink supply open under normal condition, and has only just be blocked in mobile on its direction when occurring from the outside of ink supply opening to black chamber mobile.Therefore the effect of allowing a small amount of adverse current is arranged, thereby prevent the pressure marked change of record head side.In other words, employing shut off valve and have only the structure opened as supply Mo Shicai under normal condition is when because the moving the pressure change that causes the record side and when increasing, do not have the place to make the China ink effusion of print cartridge etc., and the pressure increase of record side, this has prevented the normal discharge of China ink.Therefore, by under normal condition, opening valve, allow the less adverse current of black chamber, thereby prevent this phenomenon.
According to the print cartridge of a demonstration aspect of the present disclosure, the air guide opening is formed on from the first cylindrical wall inside of the lateral profile one-tenth of black chamber.The ink supply opening is formed on from the second cylindrical wall inside of the lateral profile one-tenth of black chamber.First sealing device is arranged on the first cylindrical wall inside with covering air guide opening, and second sealing device is arranged on the second cylindrical wall inside to cover the ink supply opening.Therefore, the air that introduce and the China ink that will supply separate fully, do not make air sneak into effect in the China ink that will supply thereby have.
According to the print cartridge of a demonstration aspect of the present disclosure, check-valves partly is made of shaft portion and film umbrella.Umbrella partly is positioned to face the ink supply opening, and flow out from the ink supply opening to allow China ink in the formation space between ink supply opening and umbrella part.When occurring from the outside of ink supply opening to black chamber mobile, umbrella closely contacts and stops the ink supply opening.Therefore following effect is arranged: can form check-valves with lower cost simply; The pressure that prevents record head side place fluctuates as mentioned above; And can when fluctuation occurring, prevent adverse current exactly.
Print cartridge according to a demonstration aspect of the present disclosure, first sealing device and second sealing device are to comprise valve seat part and the valve gear of the valve member that can move with respect to valve seat part, and valve member removes from valve seat part along with print cartridge is installed on the recording equipment main body, to open valve.Therefore following effect is arranged: sealing device can be formed with simple structure; Print cartridge becomes to the installation of recording equipment main body and is easy to.
A kind of print cartridge has black chamber, at the indoor China ink that is filled with of China ink.When this print cartridge is installed in recording equipment for example in the ink-jet printer time, China ink is supplied to recording equipment from black chamber.Depend on that for example the inside of black chamber constitutes and the condition of the viscosity of China ink, the China ink part remains in black chamber interior.Therefore, as the print cartridge that can prevent that this China ink is residual, for example proposed a kind of print cartridge in Japan patent application No.2000-71471 co-pending, this print cartridge is provided with the groove that is used for venting around being used to detect the residual black prism of measuring.In this print cartridge, by using these grooves the China ink around prism is discharged, so that China ink is difficult to remain on the surface of prism, can prevent that the mistake of China ink is surveyed in that China ink is indoor when having only small volume of ink.
But, in above-mentioned print cartridge, if the constant curvature of the groove that is used for venting that forms in black chamber is then becoming roughly the same near being used for to the position of the ink guide part of recording equipment supply China ink with away from the position of ink guide part by the size that these grooves impose on the capillary force of China ink.Therefore, when the indoor residual black quantitative change of China ink was low, China ink was separated to inhale the position to leaving ink guide part, and it is indoor to make that China ink remains in China ink.Can not use the indoor China ink of China ink so fully.
Disclosed embodiment of the present invention provides a kind of print cartridge, and it is indoor that this print cartridge can prevent more accurately that China ink from remaining in China ink.
The print cartridge of a demonstration aspect of the present disclosure is to comprise black chamber and be used for the print cartridge that the China ink that China ink is indoor is supplied to the ink supply opening of recording equipment, and the curvature of at least a portion at a plurality of edges of the interior shape of the black chamber of wherein feasible formation is along with becoming big near the ink supply opening.
In this print cartridge, the China ink in the print cartridge is supplied to recording equipment from the ink supply opening.The curvature of at least a portion at a plurality of edges (for example, form the edge between the surface of black chamber and stretch out or the edge at the part place of concave shape indoor the forming of China ink) that forms the interior shape of black chamber is along with becoming big near the ink supply opening.In other words, the shape at these edges is along with it becomes sharp shape near the ink supply opening from relaxing shape.Therefore, in the position near the ink supply opening, the capillary force that is imposed on China ink by these edges becomes bigger.Therefore, a part of edge of changing of curvature is with the China ink ink supply opening that leads.As a result and since can prevent China ink since attracted to wherein by the edge impose on the capillary force of China ink less relatively away from the position of ink supply opening and separately remain in the situation of this position, so can use black indoor China ink fully.
The print cartridge of a demonstration aspect of the present disclosure is following print cartridge, and the described at least a portion at wherein said a plurality of edges lasts till the edge of ink supply opening part from the edge of the position higher than ink supply opening.Therefore, even when reducing with the consumption of inking, last till the ink supply opening from the position higher and ink supply opening exactly also leads China ink along with have more those edges of deep camber near the ink supply opening than ink supply opening on China ink surface.Therefore, prevent that China ink from remaining in the vicinity away from the side surface of ink supply opening of black chamber.
The print cartridge of a demonstration aspect of the present disclosure is following print cartridge, the described at least a portion at wherein said a plurality of edges is formed between two predetermined surfaces in the surface that forms black chamber, and the curvature at edge is in each junction difference on described predetermined two surfaces.The curvature at the edge of employing between two surfaces that form black chamber is in the different structure in each junction on described two surfaces, and the curvature that can realize the edge at an easy rate is along with becoming big structure near the ink supply opening.
The print cartridge of a demonstration aspect of the present disclosure is following print cartridge, and is wherein parallel with described two predetermined surfaces respectively in the section of the connecting portion office on described predetermined two surfaces.Therefore, can between described two surfaces, form edge at an easy rate with predetermined curvature.
The print cartridge of a demonstration aspect of the present disclosure comprises: the toner cartridge main body that forms black chamber; Be formed on the basal surface of black chamber and be used for ink supply opening to recording equipment supply China ink; With lead black part to what the ink supply opening extended on the basal surface that is arranged on black chamber and from the side surface of black chamber.Big in the ratio of curvature of leading the edge between China ink part and the basal surface in the curvature at the side surface of black chamber and the edge between the basal surface.
In this print cartridge, the black indoor China ink that forms toner cartridge main body is supplied to recording equipment to the China ink part of leading that the ink supply opening extends from the ink supply opening by the side surface from black chamber.Make that the ratio of curvature at the edge between the basal surface of leading China ink part and black chamber is big in the curvature at the side surface of black chamber and the edge between the basal surface.In other words, the edge between near the basal surface of leading China ink part and black chamber the ink supply opening imposes on the capillary force of China ink than big in the capillary force away near the position the side surface of ink supply opening of black chamber.Therefore and since can prevent China ink since attracted to wherein by the edge impose on the capillary force of China ink less relatively away from the position of ink supply opening and separately remain in the situation of this position, so can use black indoor China ink fully.
The print cartridge of a demonstration aspect of the present disclosure is along with becoming big print cartridge near the ink supply opening in the curvature of leading the edge between China ink part and the basal surface.Therefore, even the edge between the basal surface of leading China ink part and black chamber, the capillary force that imposes on China ink is also along with becoming big near the ink supply opening.Thereby prevent that exactly China ink from remaining in the position away from the ink supply opening.
The print cartridge of a demonstration aspect of the present disclosure is to lead the print cartridge that the China ink part extends to the ink supply opening.Therefore, the China ink on the basal surface of black chamber is by leading the black ink supply opening that partly leads exactly.
Lead China ink part and can be the extension (the 8th invention) that stretches out from basal surface or be formed at groove (the 9th invention) on the basal surface.
The print cartridge of a demonstration aspect of the present disclosure is a plurality of China ink part is arranged to gather the ink supply opening around the ink supply opening print cartridges of leading.Because a plurality of China ink parts of leading are arranged to gather together the ink supply opening so the China ink on the basal surface of black chamber further leads exactly around the ink supply opening.
The print cartridge of a demonstration aspect of the present disclosure is wherein to lead the print cartridge that the China ink edge opposite with ink guide part partly lasts till the side surface of black chamber.Therefore, near the China ink the side surface of black chamber can be by leading the black ink supply opening that partly leads exactly.
In Japan patent application No.H09-85963 co-pending, there is a kind of ink container (hereinafter referred to as " print cartridge "), this ink container internal reservoir China ink, and on the bottom, be provided with opening.This opening part at print cartridge is provided with the elastic membrane valve.This print cartridge is constructed to be permeable to freely be installed on the retainer and from retainer pull down.For this retainer, be formed for opening the extension of valve in position in the face of opening.Be provided for making the China ink in the print cartridge to flow out to outside through hole in this extension office.When correctly being installed to print cartridge on the retainer, the extension of retainer is upwards promoting and is opening valve upward, and the China ink in the print cartridge flow to the outside by through hole and opening.
But above-mentioned print cartridge has following structure: under normal circumstances, valve is blocked in the connection between print cartridge inside and outside, and when print cartridge correctly is installed on the retainer, upwards promotes valve by extension and allow this connection.But,, then have black problem of leaking by opening if valve is upwards promoted by accidental before print cartridge is installed on the retainer.
Disclosed embodiment of the present invention has considered the problems referred to above, and following print cartridge is provided, even this print cartridge was also restrained ink leakage in minimum of a value by maloperation before print cartridge is installed on the retainer.
Print cartridge according to a demonstration aspect of the present disclosure is installed on the recording equipment main body can connect with dismountable mode, and is equipped with the apotheca that stores China ink.This print cartridge comprises: open communication, this open communication are formed in the cylindrical wall of a side that is formed at apotheca, and with the external communications of print cartridge; Runner, an end of this runner is communicated with open communication, and the other end of this runner is communicated with apotheca; Valve gear, this valve gear has the valve seat part and the valve member that is constructed to be permeable to be connected and separate with respect to valve seat part in the open communication of being arranged on, when valve member contact valve seat part, valve gear is sealed in the connection between apotheca inside and outside, in case and print cartridge correctly is installed on the recording equipment main body, when valve member separated preset distance with valve seat part, valve gear allowed the connection between apotheca inside and outside; And block piece, when valve member was moved beyond this preset distance, this block piece was blocked in connection between apotheca inside and outside by closing runner.
In the print cartridge aspect a demonstration of the present disclosure, runner is formed on from diapire to the upright hollow cylindrical member inside that forms, the top of print cartridge.Block piece forms to stretch out and stretch out to be to flow passage side and is roughly columniform shape, and it has roughly the internal diameter equal outer diameters with lower passage.When valve member was moved beyond described preset distance, the front end of block piece was engaged in the inside of runner by tight contact at least.
In the print cartridge aspect a demonstration of the present disclosure, retention device remains under the state of tight contact and cooperation.
In the print cartridge aspect a demonstration of the present disclosure, valve member and block piece form with resin material is whole.
In the print cartridge aspect a demonstration of the present disclosure, runner is to be used to guide air to enter the air guide path of print cartridge.
Print cartridge according to a demonstration aspect of the present disclosure is installed on the recording equipment main body can connect with dismountable mode, and is equipped with the apotheca that stores China ink.This print cartridge comprises: open communication, this open communication are formed on a side of print cartridge so that the outside is opened wide; Runner, this runner make open communication be communicated with apotheca; Block piece, this block piece is arranged to can be along with print cartridge correctly be installed on the recording equipment and moves near the direction of runner, and when correct installation, this block piece is positioned to have an interval with runner, and when being moved the amount of movement that surpasses correct installation, this block piece is closed runner.
Comprise also according to the print cartridge of a demonstration aspect of the present disclosure being positioned in the open communication that wherein the sealing device is opened when correct the installation than the sealing device at the outer place of block piece.
In the print cartridge aspect a demonstration of the present disclosure, sealing device is formed with contacting with the valve member that separates with respect to valve seat part by valve seat part, and block piece links to each other with valve member.
Print cartridge according to a demonstration aspect of the present disclosure also comprises the ink supply opening, and this ink supply opening is formed on a side of print cartridge and the outside is opened wide, and the China ink in the apotheca is supplied to the recording equipment main body.Open communication is to be used to guide air to enter the air guide opening of apotheca.
In the print cartridge aspect a demonstration of the present disclosure, the front-end structure of block piece becomes to make the outer radial runner diminish.
In the print cartridge aspect a demonstration of the present disclosure, flow passage configuration becomes to make its internal diameter to diminish along the direction of leaving block piece from the end face as barrier side.
According to the print cartridge of a demonstration aspect of the present disclosure, when print cartridge correctly was installed on the recording equipment main body, valve member separated described preset distance with valve seat part, make black apotheca can with external communications.In addition, when valve member was moved beyond described preset distance accidentally, block piece was closed runner.Therefore, ink leakage is restrained in minimum of a value to outside possibility.
According to the print cartridge of a demonstration aspect of the present disclosure, runner is formed on from diapire to the upright hollow cylindrical member inside that forms, the top of print cartridge.Block piece forms to stretch out and stretch out to be to flow passage side and is roughly columniform shape, and it has roughly the internal diameter equal outer diameters with lower passage.When valve member was moved beyond this preset distance, the front end of block piece was engaged in the inside of runner by tight contact at least.The effect that therefore accurate inhibition ink leakage is arranged.
According to the print cartridge of a demonstration aspect of the present disclosure, retention device remains under the state of tight contact and cooperation.Therefore the effect that prevents black continuous release is arranged.
According to the print cartridge of a demonstration aspect of the present disclosure, because valve member and block piece are with the whole formation of resin material, so thereby have the minimizing part count to reduce the effect of manufacturing cost.
According to the print cartridge of a demonstration aspect of the present disclosure, runner is to be used to guide air to enter the air guide path of print cartridge.Therefore, when valve member is moved beyond described preset distance, block piece blocks air guiding channel, even and this moment the ink supply opening open, air pressure can not be applied in the print cartridge yet.Therefore the effect that suppresses ink leakage is arranged.
According to the print cartridge of a demonstration aspect of the present disclosure, open communication is formed on a side of print cartridge with unlimited to the outside, and is communicated with apotheca by runner.Block piece is can correctly being installed on the recording equipment and the mode that moves near the direction of runner is arranged in the open communication along with print cartridge.When print cartridge correctly was installed on the recording equipment main body, this block piece was positioned to have an interval with runner, and when being moved beyond scheduled volume accidentally, this block piece is closed runner.Therefore, ink leakage is restrained in minimum of a value to outside possibility.
Comprise also according to the print cartridge of a demonstration aspect of the present disclosure being positioned in the open communication that the sealing device is opened when correct the installation than the sealing device at the outer place of block piece.Therefore, when print cartridge was not installed on the recording equipment main body, sealing device accurately was sealed in the connection between print cartridge inside and outside.In addition, when print cartridge correctly is installed on the recording equipment main body, accurately be formed into outside runner.
According to the print cartridge of a demonstration aspect of the present disclosure, sealing device is formed with contacting with the valve member that separates with respect to valve seat part by valve seat part, and block piece links to each other with valve member.Therefore, be that the situation of the unit that separates is compared with block piece and valve member, need in print cartridge, not form complicated structure to arrange block piece and valve member.Therefore the effect that can simplify the print cartridge structure is arranged.
According to the print cartridge of a demonstration aspect of the present disclosure, this print cartridge also comprises the ink supply opening, and this ink supply opening is formed on a side of print cartridge and the outside is opened wide, and the China ink in the apotheca is supplied to the recording equipment main body.Open communication is to be used to guide air to enter the air guide opening of apotheca.Therefore, when block piece was moved beyond predetermined amount of movement, the runner of guiding air was blocked, even and this moment the ink supply opening open, air pressure can not be applied in the print cartridge yet.Therefore the effect that suppresses ink leakage is arranged.
According to the print cartridge of a demonstration aspect of the present disclosure, because the front-end structure of block piece becomes to make the outer radial runner diminish that the front end of block piece can insert runner at an easy rate.Therefore the effect of being convenient to stop accurately operation is arranged.
According to the print cartridge of a demonstration aspect of the present disclosure, because flow passage configuration becomes to make its internal diameter to diminish along the direction of leaving block piece from the end face as barrier side, so block piece can insert runner at an easy rate.Therefore the effect of being convenient to stop accurately operation is arranged.
Have a kind of print cartridge in Japan patent application No.H06-64182 co-pending, this print cartridge is equipped with: tracheae (hereinafter referred to as " air guide element "), and this air guide element is used for air is directed to the main tank inside of print cartridge; The film block piece, this film block piece adheres to the upper end of air guide element; With the cooperation part, this cooperation part is arranged on air guide element inside.For the guiding air enters print cartridge, pass the rubber parts that is arranged on the print cartridge diapire and insert the air guide needle.Puncture the guiding channel that part is formed for air, the narrow hole of this guiding channel by promoting cooperation part thorn rupture of membranes through forming by the cooperation part.Extend on the direction that is approximately perpendicular to the print cartridge diapire in the narrow hole of cooperation part, and form the roughly form of straight lines from the front opening to the rubber parts.
The air guide element of print cartridge will be corresponding with the China ink amount that is supplied to record head from print cartridge the air of amount be directed in the print cartridge so that it is constant to be supplied to the pressure of the China ink of record head to keep.Therefore, the China ink that for example do not entered wherein of preferred air guide element is closed.But inevitably: before the user was installed to print cartridge on the recording equipment main body after the production or after the user once pulls down print cartridge from the recording equipment main body, print cartridge may tilt or fall.Therefore open end or the China ink that has following possibility, Jimo to stick to air guide element enters air guide element inside.
Form meniscus by open end, perhaps when the guiding channel in the air guide element is narrower, pass through at the inner formation of this guiding channel meniscus in apotheca side air guide element, thus black normally closed air guide element.If supply is black in this case, then be repeated below step: the pressure in the apotheca that meniscus sealed reduces; Air destroys meniscus and flows into apotheca; The formed meniscus of residue of ink reduces pressure; Air destroys meniscus and flows into apotheca.In other words, the ink supply pressure oscillation of record head, thus China ink is discharged from record head unevenly.Therefore might reduce the problem of recording quality.
Disclosed embodiment of the present invention considers the problems referred to above and makes, and following print cartridge is provided, and this print cartridge enters the ink supply pressure oscillation that print cartridge prevents record head by correct guiding air, and makes to discharge from the China ink of record head and keep evenly.
Print cartridge according to a demonstration aspect of the present disclosure is equipped with the apotheca that stores China ink, and comprises: be formed at as the air guide opening on the diapire of apotheca bottom, this air guide opening guiding air enters apotheca; The ink supply opening, this ink supply opening is supplied to the outside with the China ink in the apotheca; And air guide element, this air guide element is the hollow cylindrical that rises to the top of apotheca from diapire, and the lower end of the inner flow passage of air guide element is communicated with the air guide opening, and the upper end of air guide element is in the opened upper end of apotheca.Air guide element is configured such that at least a portion of upper end open forms diagonally with respect to first direction, and the area of upper end open is bigger than the cross-sectional area on the direction vertical with first direction of inner flow passage thus.
Print cartridge according to a demonstration aspect of the present disclosure is equipped with the apotheca that stores China ink, and comprises: be formed at as the air guide opening on the diapire of apotheca bottom, this air guide opening guiding air enters apotheca; The ink supply opening, this ink supply opening is supplied to the outside with the China ink in the apotheca; And air guide element, this air guide element is the hollow cylindrical that rises to the top of apotheca from diapire, and the lower end of the inner flow passage of air guide element is communicated with the air guide opening, and the upper end of air guide element is in the opened upper end of apotheca.The upper end open of air guide element is formed on two or more different mutually planes.
Print cartridge according to a demonstration aspect of the present disclosure is equipped with the apotheca that stores China ink, and comprises: be formed at as the air guide opening on the diapire of apotheca bottom, this air guide opening guiding air enters apotheca; The ink supply opening, this ink supply opening is supplied to the outside with the China ink in the apotheca; And air guide element, this air guide element is the hollow cylindrical that rises to the top of apotheca from diapire, and the lower end of the inner flow passage of air guide element is communicated with the air guide opening, and the upper end of air guide element is in the opened upper end of apotheca.Air guide element upper end open form non-circular.
Print cartridge according to a demonstration aspect of the present disclosure is equipped with the apotheca that stores China ink, and comprises: be formed at as the air guide opening on the diapire of apotheca bottom, this air guide opening guiding air enters apotheca; The ink supply opening, this ink supply opening is supplied to the outside with the China ink in the apotheca; And air guide element, this air guide element is the hollow cylindrical that rises to the top of apotheca from diapire, and the lower end of the inner flow passage of air guide element is communicated with the air guide opening, and the upper end of air guide element is in the opened upper end of apotheca.The internal diameter of the inner flow passage of air guide element forms and makes China ink stop the size that does not form meniscus on the direction of inner flow passage.
In the print cartridge aspect a demonstration of the present disclosure, the internal diameter of the inner flow passage of air guide element is more than or equal to about 0.8mm.
Print cartridge according to a demonstration aspect of the present disclosure also comprises: sidewall, and this sidewall extends along first direction from the circumference of diapire, and as the periphery of apotheca; The main tank structure, this main tank structure is made of diapire and sidewall, and the top surface of main tank opens wide; And cover piece, the top surface that opens wide of the main body covered case of this cover piece.Air guide element and diapire are whole to be formed.
According to the print cartridge of a demonstration aspect of the present disclosure, the air guide opening is formed on the diapire as apotheca bottom, and the guiding air enters apotheca.The lower end of the inner flow passage of air guide element is communicated with the air guide opening.Air guide element rises to the top of apotheca from diapire, and has the opening in the opened upper end of apotheca.Air guide element is configured such that at least a portion of upper end open forms diagonally with respect to first direction, and the area of upper end open is bigger than the cross-sectional area on the direction vertical with first direction of inner flow passage thus.Upper end open can also be formed by two or more different each other planes.Upper end open can also form non-circular.Therefore, also be difficult to form meniscus even China ink sticks on the opening, even and form meniscus, this meniscus also is easy to destroy along with the introducing of air.Therefore, owing to can be suppressed at the fluctuation that occurs the air guiding when opening part forms meniscus, so following effect is arranged: reduce for the fluctuation of the China ink supply of record head, and can keep equably from the China ink of record head and discharge.
According to the print cartridge of a demonstration aspect of the present disclosure, the air guide opening is formed on the diapire as apotheca bottom, and the guiding air enters apotheca.The lower end of the inner flow passage of air guide element is communicated with the air guide opening.Air guide element rises to the top of apotheca from diapire, and has the opening in the opened upper end of apotheca.Because forming, the internal diameter of the inner flow passage of air guide element make China ink stop the size that does not form meniscus on the direction of inner flow passage, so even China ink remains in the inner flow passage, inner flow passage is not that meniscus stops by ink film also.In addition, China ink is correctly introduced apotheca.Therefore have and keep the effect of discharging as mentioned above from the uniform China ink of record head.
According to the print cartridge of a demonstration aspect of the present disclosure, be set at more than or equal to about 0.8mm by internal diameter and can realize this effect at an easy rate the inner flow passage of air guide element.
According to the print cartridge of a demonstration aspect of the present disclosure, main tank is made of diapire and sidewall, makes top surface open wide.In addition, air guide element and diapire are whole forms.Therefore, owing to can pass through molded formation of instrument and the integrally formed main body case of air guide element at an easy rate, thus can reduce production cost, and can prevent from the connector and the diapire of air guide element mobile to the China ink of inner flow passage.Thereby there is correct guiding air to enter the effect of apotheca.
Knownly in Japan patent application No.6-64182 co-pending have a kind of print cartridge, this print cartridge is equipped with: tracheae (hereinafter referred to as " air guide element "), this air guide element is used for air is directed to the main tank inside of print cartridge.This print cartridge has rubber parts on the bottom, pass this rubber parts and insert ink supply pin and air guide needle.Above rubber parts, air guide element is installed on the main tank by adhering to.In addition, the upper end of air guide element is formed with the flat surfaces part, and this flat surfaces partly has the diameter bigger than the external diameter of air guide element, is used to prevent the film block piece of mobile inlet with adhesion.Puncture the cooperation part of film block piece in the internal placement of air guide element.For air being directed to print cartridge inside, the air guide needle is passed rubber parts and is inserted, and upwards promotes the cooperation part, makes the cooperation part puncture the film block piece, is directed into print cartridge inside to allow air.
But, because main body case and air guide element are configured to chorista in above-mentioned print cartridge, thus need be assembled to process on the main body case to air guide element, thus operating efficiency reduces, and causes manufacturing cost to increase.And because following possibility is arranged, promptly air enters the inner flow passage of air guide element from the tie point between print cartridge and air guide element, and therefore the problem of incorrect guiding air is arranged.
In addition, for making following print cartridge, be that raising operating efficiency main body case and air guide element are whole in this print cartridge, because the upper end of air guide element is formed with flat surfaces, this flat surfaces has the diameter bigger than the external diameter of air guide element, so also have following problem: the molded production of employing instrument becomes complicated, thereby manufacturing cost increases.
Disclosed embodiment of the present invention has considered the problems referred to above, and following print cartridge is provided, and this print cartridge can reduce the manufacturing cost of print cartridge, also allows correct guiding air to enter print cartridge.
Print cartridge according to a demonstration aspect of the present disclosure has the holder that stores China ink, and comprises: main body case, this main body case have diapire and the sidewall that forms apotheca, and the top surface of main body case opens wide; The air guide opening, this air guide opening is formed on the diapire of main body case, is used to guide air to enter apotheca; The ink supply opening, this ink supply opening is formed on the main body case, is used for the China ink in the apotheca is supplied to the outside; With the hollow cylindrical air guide element, the inner flow passage of this hollow cylindrical air guide element is communicated with the air guide opening, this hollow cylindrical air guide element and main body case are whole to be formed, and the diapire along first direction from main body case rises to opened upper surface, and the black surface of the upper end of air guide element in apotheca opened wide.
In the print cartridge aspect a demonstration of the present disclosure, the coupling part of air guide element and diapire forms the shape that enlarges to diapire from air guide element.
In the print cartridge aspect a demonstration of the present disclosure, the air guide opening is formed in first cylindrical wall, and this first cylindrical wall stretches out and forms with this lower surface is whole from the lower surface of diapire.The ink supply opening is formed in second cylindrical wall, and this second cylindrical wall stretches out and forms with this lower surface is whole from the lower surface of diapire, and air guide opening and ink supply opening are by the sealing device sealing that is arranged in first cylindrical wall and second cylindrical wall.
In the print cartridge aspect a demonstration of the present disclosure, first cylindrical wall and air guide element integral body form the continous cylindrical shape of passing diapire.
In the print cartridge aspect a demonstration of the present disclosure, sealing device is to be equipped with valve seat part and the valve gear of the valve member that can move with respect to valve seat part, and valve gear moves on the direction of the part of lifting off a seat making valve member be installed to along with print cartridge on the ink jet recording device.
Print cartridge according to a demonstration aspect of the present disclosure, this print cartridge has the holder that stores China ink, and is made of main body case and cover piece, and this main body case has diapire and the sidewall that forms apotheca, the top surface of main body case opens wide, and this cover piece covers the top surface that opens wide of main tank.On the diapire of main body case, form the air guide opening, be used to guide air to enter apotheca.In addition, the inner flow passage of hollow cylindrical air guide element is communicated with the air guide opening, this hollow cylindrical air guide element and main body case are whole to be formed, and the diapire along first direction from main body case rises to opened upper surface, and the black surface of the upper end of air guide element in apotheca opened wide.The inner flow passage of air guide element is communicated with the air guide opening, thereby can enter apotheca by air guide opening and air guide element guiding air.Like this, because the upper surface of main body is unlimited, and owing to air guide element integral body forms from diapire to the surface rise of opening wide, so can wait resin molded main body and air guide element by tool operation at an easy rate.Therefore, because the part count minimizing, and owing to do not need the assembling of main body case and air guide element, so improved operating efficiency, and reduced manufacturing cost.
And, form because main body case and air guide element are whole, flow into the inner flow passage of air guide element from the coupling part between main body case and air guide element so prevented China ink.Therefore there is correct guiding air to enter the effect of apotheca.
According to the print cartridge of a demonstration aspect of the present disclosure, because the coupling part of air guide element and diapire forms the shape that enlarges to diapire from air guide element, so following effect is arranged: the intensity at the tie point place increases; And can prevent that air guide element is when molded or owing to the influence of after this environmental change is out of shape.
Print cartridge according to a demonstration aspect of the present disclosure, the air guide opening is formed in first cylindrical wall, this first cylindrical wall stretches out and forms with this lower surface is whole from the lower surface of diapire, the ink supply opening is formed in second cylindrical wall, this second cylindrical wall stretches out and forms with this lower surface is whole from the lower surface of diapire, and air guide opening and ink supply opening are by the sealing device sealing that is arranged in first cylindrical wall and second cylindrical wall.Therefore, if by tool operation etc. first cylindrical wall and second cylindrical wall are integrally molded on the main body case, then by sealing device being arranged in first cylindrical wall and the second cylindrical wall place, the inside of print cartridge can be in sealing state.Therefore the effect that can further improve the operating efficiency of device is arranged.
According to the print cartridge of a demonstration aspect of the present disclosure, first cylindrical wall and air guide element integral body form the continous cylindrical shape of passing diapire.Therefore, even China ink flows into the inner flow passage of air guide element between the delivery period of print cartridge, when opening the air guide opening by the installation of print cartridge, the China ink in the inner flow passage also can flow into apotheca reposefully.Therefore, owing to prevented the guiding of the black blocks air that the inner flow passage of air guide element is interior, so the effect of correct guiding air is arranged.
Print cartridge according to a demonstration aspect of the present disclosure, sealing device is to be equipped with valve seat part and the valve gear of the valve member that can move with respect to valve seat part, and valve gear moves on the direction of the part of lifting off a seat making valve member be installed to along with print cartridge on the ink jet recording device.Therefore following effect is arranged: when print cartridge is not installed on the ink jet recording device, prevent the appearance of ink leakage, and when print cartridge was installed on the ink jet recording device, the valve member that will move on the direction of part of lifting off a seat by valve gear form air guide path and ink-feed channel exactly.
Although in conjunction with the case description of example embodiment and above general introduction the disclosure, but for the technical staff who has ordinary skill at least, be known or at present may unforeseen various alternatives, modification, variant, improvement and/or substantial equivalence thing all be conspicuous.Therefore, as mentioned above, example embodiment of the present disclosure be intended to the explanation and unrestricted.Can not depart from spirit and scope of the present disclosure and make various variations.Therefore, disclosure intention comprises that all are known or develops the alternative, modification, variant, improvement and/or the substantial equivalence thing that later on.
Industrial usability
Print cartridge of the present invention is widely used in family and office purposes.
Claims
(according to the modification of the 19th of treaty)
1. print cartridge comprises:
The China ink chamber;
Communication chamber, this communication chamber can with the external communications of black chamber and print cartridge;
Be arranged on the valve in the communication chamber, this valve can move to the second place of this connection of permission from the primary importance that is connected between the outside that stops black chamber and print cartridge;
Operating parts, this operating parts extends to the outside of print cartridge from communication chamber, and can make valve move to the described second place from described primary importance;
Valve seat, this valve seat and valve are adjacent; With
Pressing device, this pressing device extends, pushes to valve seat, wherein around valve and with described valve from valve seat:
Approximate center at valve seat forms opening, so that expose the bottom of valve,
Valve seat is at the outside of this opening contact valve;
Operating parts passes opening and stretches out from valve; And
Pressing device and valve seat are whole to be formed, so that in first side opposite with valve seat of valve
Valve is pushed to valve seat.
2. according to the print cartridge of claim 1, wherein when print cartridge was installed in the mounting portion of an ink jet recording device, operating parts can make valve move to the second place from primary importance by contacting this mounting portion.
3. according to the print cartridge of claim 1, the parts that form as one of valve and operating parts wherein.
4. according to the print cartridge of claim 1, wherein operating parts is positioned at second side opposite with first side of valve.
5. according to the print cartridge of claim 1, also comprise: around the seal of operating parts.
6. according to the print cartridge of claim 5, wherein an end of operating parts is between the outboard end of the outboard end of communication chamber and seal.
7. according to the print cartridge of claim 5, wherein seal extends and forms with valve seat is whole from valve seat in a side opposite with valve.
8. according to the print cartridge of claim 2, also comprise seal around operating parts, wherein when print cartridge was installed in the mounting portion of ink jet recording device, seal contacted this mounting portion and forms a passage, and the runner in the mounting portion leads to black chamber.
9. according to the print cartridge of claim 5, wherein valve seat, pressing device and seal form by rubber type of material is whole.
10. print cartridge comprises:
The China ink chamber;
The air communication chamber, this air communication chamber can with the external communications of black chamber and print cartridge;
Be arranged on the first indoor valve system of air communication;
The China ink communication chamber, this China ink communication chamber can with the external communications of black chamber and print cartridge; With
Be arranged on second valve system in the black communication chamber, wherein in first valve system or second valve system one of them comprises at least: valve seat, the valve and the operating parts that can move with respect to valve seat, this operating parts extends to the outside of one of them at least in air communication chamber or the black communication chamber, and can make valve move to the second place that valve and valve seat separate from valve and the contacted primary importance of valve seat.
11. according to the print cartridge of claim 10, wherein when print cartridge was installed in the mounting portion of ink jet recording device, operating parts can make valve move to the second place from primary importance by contacting this mounting portion.
12. according to the print cartridge of claim 10, the parts that form as one of valve and operating parts wherein.
13. according to the print cartridge of claim 10, wherein air communication chamber and black communication chamber are formed on a side of print cartridge.
14. according to the print cartridge of claim 11, wherein:
First valve system comprises valve seat, valve and operating parts, and second valve system comprises valve seat and valve, and
When print cartridge is installed in the mounting portion of ink jet recording device, the operating parts of first valve system can make the valve of first valve system move to the second place from primary importance by the contact mounting portion, and by by being arranged on the valve that a extraction tube in the mounting portion promotes second valve system, the valve of second valve system can move to the second place from primary importance.
15. a valve system comprises:
Valve;
Operating parts;
Valve seat partly locates to have opening in the approximate centre of this valve seat; With
Pressing device, this pressing device extends, pushes valve around valve and at first direction from valve seat, makes valve contact valve seat, wherein:
The opening that operating parts passes valve seat stretches out,
Valve is between valve seat and the pressing device,
When operating parts pushed valve on the second direction opposite with first direction, valve separated with valve seat; And
Pressing device and valve seat are whole to be formed, so that in first side opposite with valve seat of valve valve is pushed to valve seat.
16. according to the valve system of claim 15, also comprise seal, the sealing part is around the periphery of opening and operating parts.
17. according to the valve system of claim 16, wherein an end of operating parts is between the outboard end of valve and seal.
18. an ink jet recording device comprises: the mounting portion, print cartridge as claimed in claim 12 can be admitted in this mounting portion, and this mounting portion comprises runner, and air is directed into print cartridge by this runner.
19. an ink jet recording device comprises:
Ink gun; With
The mounting portion, print cartridge as claimed in claim 12 can be admitted in this mounting portion, and this mounting portion comprises extraction tube, and China ink is fed to ink gun by this extraction tube.
Claims (21)
1. print cartridge comprises:
The China ink chamber;
Communication chamber, this communication chamber can with the external communications of black chamber and print cartridge;
Be arranged on the valve in the communication chamber, this valve can move to the second place of this connection of permission from the primary importance that is connected between the outside that stops black chamber and print cartridge; With
Operating parts, this operating parts extends to the outside of print cartridge from communication chamber, and can make valve move to the described second place from described primary importance.
2. according to the print cartridge of claim 1, wherein when print cartridge was installed in the mounting portion of an ink jet recording device, operating parts can make valve move to the second place from primary importance by contacting this mounting portion.
3. according to the print cartridge of claim 1, the parts that form as one of valve and operating parts wherein.
4. according to the print cartridge of claim 1, also comprise:
Valve seat, this valve seat and valve are adjacent; With
Pressing device, this pressing device pushes described valve to valve seat, wherein:
Approximate center at valve seat forms opening, so that expose the bottom of valve,
Valve seat is at the outside of this opening contact valve; And
Operating parts passes opening and stretches out from valve.
5. according to the print cartridge of claim 4, wherein pressing device extends and around valve from valve seat, and pressing device forms with valve seat is whole, so that in first side opposite with valve seat of valve valve is pushed to valve seat.
6. according to the print cartridge of claim 5, wherein operating parts is positioned at second side opposite with first side of valve.
7. according to the print cartridge of claim 1, also comprise: around the seal of operating parts.
8. according to the print cartridge of claim 7, wherein an end of operating parts is between the outboard end of the outboard end of communication chamber and seal.
9. according to the print cartridge of claim 7, wherein seal extends and forms with valve seat is whole from valve seat in a side opposite with valve.
10. according to the print cartridge of claim 2, also comprise seal around operating parts, wherein when print cartridge was installed in the mounting portion of ink jet recording device, seal contacted this mounting portion and forms a passage, and the runner in the mounting portion leads to black chamber.
11. according to the print cartridge of claim 7, wherein valve seat, pressing device and seal form by rubber type of material is whole.
12. a print cartridge comprises:
The China ink chamber;
The air communication chamber, this air communication chamber can with the external communications of black chamber and print cartridge;
Be arranged on the first indoor valve system of air communication;
The China ink communication chamber, this China ink communication chamber can with the external communications of black chamber and print cartridge; With
Be arranged on second valve system in the black communication chamber, wherein in first valve system or second valve system one of them comprises at least: valve seat, the valve and the operating parts that can move with respect to valve seat, this operating parts extends to the outside of one of them at least in air communication chamber or the black communication chamber, and can make valve move to the second place that valve and valve seat separate from valve and the contacted primary importance of valve seat.
13. according to the print cartridge of claim 12, wherein when print cartridge was installed in the mounting portion of ink jet recording device, operating parts can make valve move to the second place from primary importance by contacting this mounting portion.
14. according to the print cartridge of claim 12, the parts that form as one of valve and operating parts wherein.
15. according to the print cartridge of claim 12, wherein air communication chamber and black communication chamber are formed on a side of print cartridge.
16. according to the print cartridge of claim 13, wherein:
First valve system comprises valve seat, valve and operating parts, and second valve system comprises valve seat and valve, and
When print cartridge is installed in the mounting portion of ink jet recording device, the operating parts of first valve system can make the valve of first valve system move to the second place from primary importance by the contact mounting portion, and by by being arranged on the valve that a extraction tube in the mounting portion promotes second valve system, the valve of second valve system can move to the second place from primary importance.
17. a valve system comprises:
Valve;
Operating parts;
Valve seat partly locates to have opening in the approximate centre of this valve seat; With
Pressing device, this pressing device pushes valve on first direction, make valve contact valve seat, wherein:
The opening that operating parts passes valve seat stretches out,
Valve is between valve seat and the pressing device, and
When operating parts pushed valve on the second direction opposite with first direction, valve separated with valve seat.
18. according to the valve system of claim 17, also comprise seal, the sealing part is around the periphery of opening and operating parts.
19. according to the valve system of claim 18, wherein an end of operating parts is between the outboard end of valve and seal.
20. an ink jet recording device comprises: the mounting portion, print cartridge as claimed in claim 12 can be admitted in this mounting portion, and this mounting portion comprises runner, and air is directed into print cartridge by this runner.
21. an ink jet recording device comprises:
Ink gun; With
The mounting portion, print cartridge as claimed in claim 12 can be admitted in this mounting portion, and this mounting portion comprises extraction tube, and China ink is fed to ink gun by this extraction tube.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004031712A JP4517659B2 (en) | 2003-11-25 | 2004-02-09 | Ink cartridge and valve device |
| JP031712/2004 | 2004-02-09 | ||
| JP032872/2004 | 2004-02-10 | ||
| JP043978/2004 | 2004-02-20 | ||
| JP047768/2004 | 2004-02-24 | ||
| JP049973/2004 | 2004-02-25 | ||
| JP053164/2004 | 2004-02-27 | ||
| JP063659/2004 | 2004-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1764546A true CN1764546A (en) | 2006-04-26 |
| CN100417525C CN100417525C (en) | 2008-09-10 |
Family
ID=36748255
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580000074.4A Expired - Fee Related CN1764547B (en) | 2004-02-09 | 2005-02-09 | Ink cartridge |
| CNB2005800000621A Expired - Fee Related CN100417525C (en) | 2004-02-09 | 2005-02-09 | Ink cartridge |
| CNB200580000034XA Expired - Fee Related CN100406263C (en) | 2004-02-09 | 2005-02-09 | Ink cartridge |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200580000074.4A Expired - Fee Related CN1764547B (en) | 2004-02-09 | 2005-02-09 | Ink cartridge |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200580000034XA Expired - Fee Related CN100406263C (en) | 2004-02-09 | 2005-02-09 | Ink cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN1764547B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642984B (en) * | 2008-08-05 | 2014-09-10 | 精工爱普生株式会社 | Liquid container, packed liquid container, and method of manufacturing the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615980A (en) * | 2011-01-26 | 2012-08-01 | 兄弟工业株式会社 | Ink cartridge |
| CN103786443B (en) * | 2012-11-01 | 2016-01-27 | 珠海纳思达企业管理有限公司 | A kind of print cartridge |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09174875A (en) * | 1995-12-21 | 1997-07-08 | Brother Ind Ltd | Ink supply device and printer |
| CA2430629C (en) * | 1998-11-11 | 2007-01-02 | Seiko Epson Corporation | Ink-jet printing apparatus and ink cartridge |
| ATE364508T1 (en) * | 1999-04-08 | 2007-07-15 | Seiko Epson Corp | INKJET RECORDING APPARATUS AND CONTROL METHOD FOR CLEANING THE BUILT-IN RECORDING HEAD |
| JP2002001988A (en) * | 2000-04-18 | 2002-01-08 | Canon Aptex Inc | Ink tank and ink jet cartridge |
| US6854836B2 (en) * | 2001-10-05 | 2005-02-15 | Canon Kabushiki Kaisha | Liquid container, liquid supply system, liquid using apparatus, ink tank, ink supply system, inkjet print head and print apparatus |
| JP3667283B2 (en) * | 2002-01-25 | 2005-07-06 | キヤノン株式会社 | Liquid storage container |
| JP2003226022A (en) * | 2002-02-01 | 2003-08-12 | Seiko Epson Corp | Inkjet recorder and method of supplying ink |
| CN1201939C (en) * | 2002-03-28 | 2005-05-18 | 珠海天威飞马打印耗材有限公司 | Regenerating method of soft bag chip ink box and special tool thereof |
-
2005
- 2005-02-09 CN CN200580000074.4A patent/CN1764547B/en not_active Expired - Fee Related
- 2005-02-09 CN CNB2005800000621A patent/CN100417525C/en not_active Expired - Fee Related
- 2005-02-09 CN CNB200580000034XA patent/CN100406263C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642984B (en) * | 2008-08-05 | 2014-09-10 | 精工爱普生株式会社 | Liquid container, packed liquid container, and method of manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1764547B (en) | 2010-05-26 |
| CN1764545A (en) | 2006-04-26 |
| CN1764547A (en) | 2006-04-26 |
| CN100417525C (en) | 2008-09-10 |
| CN100406263C (en) | 2008-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1121949C (en) | Ink box, ink box valve mechanism and ink-jet head box with ink box and ink jet recording device | |
| CN1083772C (en) | Ink container for ink jet printer, holder for container carriage for holder and ink jet printer | |
| CN1150090C (en) | Ink rail, ink-jet box, ink supply apparatus, ink-jet printer and ink supply method | |
| CN1254376C (en) | Ink jet recording apparatus using recording unit with ink cartridge having ink inducing element | |
| CN1199801C (en) | Liquid container and ink-jet cartridge | |
| CN1292907C (en) | Ink jetting recorder and its operation method | |
| CN1265966C (en) | Liquid container and recorder | |
| CN1288818A (en) | Ink box, ink box seat and method for fitting ink-box onto ink-box seat | |
| CN1376585A (en) | Liquid container, elastic component and record device for liquid container | |
| CN1358137A (en) | Ink cartridge for recording device and ink jet recording device | |
| CN1156374C (en) | Ink container and productive method and ink-jetting printer | |
| CN1280919A (en) | Feed liquid method, feed liquid container, negative pressure producing unit container and liquid container | |
| CN1749029A (en) | Direct-fluid-supply writing implement | |
| CN1603122A (en) | Ink cartridge and inkjet printer | |
| CN1621237A (en) | Ink cartridge | |
| CN1694813A (en) | Liquid supply system, fluid communicating structure, ink supply system, and inkjet recording head utilizing the fluid communicating structure | |
| CN101032905A (en) | Direct-fluid-supply writing implement | |
| CN1750935A (en) | Valve device and method for manufacturing valve device,pressure regulator, carriage, liquid ejecting apparatus | |
| CN1764546A (en) | Ink cartridge | |
| CN1799846A (en) | Ink cartridge for use with recording apparatus and ink jet recording apparatus | |
| CN1832860A (en) | Liquid injector | |
| CN1185112C (en) | Collector type writing implement | |
| CN1142064C (en) | Ink cartridge and ink filling method and device thereof | |
| CN2803706Y (en) | Ink cartridge, valve device and ink jetting recorder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1087071 Country of ref document: HK |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1087071 Country of ref document: HK |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20200209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |