CN1443646A

CN1443646A - Ink box

Info

Publication number: CN1443646A
Application number: CN 02106350
Authority: CN
Inventors: 萧庆国; 何永刚
Original assignee: Print Rite Unicorn Image Products Co Ltd
Current assignee: Print Rite Unicorn Image Products Co Ltd
Priority date: 2002-03-08
Filing date: 2002-03-08
Publication date: 2003-09-24
Anticipated expiration: 2022-03-08
Also published as: AU2003221283A1; CN1172803C; WO2003076193A1

Abstract

The present invention relates to an ink box which is a consumption material specially matched with ink jet printer. The undersurface of the box cover is equipped with an upper recessed cavity, and the hole mouth of air hole is positioned under the recessed cavity, the interior of the box is equipped with air-guiding liquid-blocking plug, on the box cover a positioning rib is set, and the side surface of the box body is equipped with a non-return valve, and the inlet of the non-return valve is communicated with bottom portion of ink cavity, and the outlet is connected with ink-supplying hole, and said ink-supplying hole is equipped with a sealing ring at outside of ink-guiding component, and said ink-supplying hole also has an outward-flanged horn hole.

Description

Print cartridge

Technical field

The present invention relates to the print cartridge that ink-jet printer is used, separable print cartridge between particularly black chamber and the printhead.

Background technology

The print cartridge that existing a kind of printer uses is just like the disclosed version of CN1107103A, and referring to Figure 21 and Figure 22, Figure 21 is its external form figure, and Figure 22 is the structure cutaway view of Figure 21.For saying something, what provide among the figure is a monochromatic print cartridge (structure of polychrome print cartridge and operation principle are similar substantially), it has a black chamber to be built-in with to be full of the box body 50 of the Sponge 49 of China ink, and there is an ink supply port 51 bottom surface of box body 50, is useful on the ink inducing element 52 of leading China ink in the ink supply port 51.The structure more complicated of its lid 46, the lower surface of lower floor's lid 47 is provided with the rib 48 of downward extruding sponge 49, also has an inlet (not in this figure) of linking up black chamber and labyrinth type air flue, upper strata lid 44 and lower floor's lid 47 welding, form the bent labyrinth type air flue 45 that returns, the outlet 43 of a labyrinth type air flue is arranged on upper strata lid 44, thereby guarantee the negative-pressure balancing in the ink supply process China and Mexico chamber on the one hand, Mo Buhui rapid outflow from air flue pollutes when print cartridge is inverted on the other hand.

The weak point of this print cartridge has two, and first China ink chamber has been occupied bigger volume by sponge, thereby contains the China ink amount and be restricted, concerning the user, and the use cost height, simultaneously, because the existence of sponge, residual China ink amount is bigger, pollutes to environment; It two is complex structures of lid, causes the technological requirement height of print cartridge, and cost is also high.

Summary of the invention

The objective of the invention is to design a kind of new construction, cancel the sponge in the black chamber, the Rong Mo space of print cartridge is increased relatively, thereby reduce the use cost of print cartridge at the print cartridge of this printer.

Another object of the present invention is to simplify the structure of lid, reduces the assembly technology requirement.

A further object of the present invention is when project organization, takes into full account to reduce residual China ink the protection environment.

For achieving the above object, the box body in black chamber is arranged in print cartridge provided by the present invention comprises and be positioned at the lid that push up in black chamber, have on the lid and be communicated with black chamber and extraneous pore, box bottom has the ink supply port of built-in ink inducing element, the lid lower surface is designed to a last cavity that surrounds pore, the aperture of pore in black chamber is positioned at the bottom of this cavity, and be built-in with air guide blocking solution plug at pore, when the print cartridge that uses up is inverted, a spot of residual China ink will be positioned at cavity in the black chamber, the aperture of pore this moment in black chamber is higher than residual black liquid level, simultaneously, also has air guide blocking solution plug in the pore, therefore, at this designs simplification in, played anti-residual China ink equally and flowed out the purpose that pollutes.One row's inclined-plane positioning bar is arranged on the lid, when being used to pack into printer in the box storehouse jam-packed location, can prevent the relative box of print cartridge storehouse in horizontal plane and vertical direction shake, improve the ink supply quality.As seen, the lid structure is simplified relatively, and the manufacturing of these parts and the assembly technology of print cartridge are simplified, and has reduced the defect rate of product.The box body side is provided with check valve, and the check valve inlet is communicated with bottom, black chamber, and ink supply port is led in outlet.Ink supply port also is equipped with a sealing ring in the outside of ink inducing element, and ink supply port has by circle to outer bellmouth orifice of oval transition, in place smoothly when being convenient to print cartridge and packing guard shield and printer box storehouse into.Because the inlet of check valve is communicated with the bottom in black chamber, under non-situation of shelving intermittent work for a long time, the China ink in the chamber is used up, residual black measuring is starkly lower than the sponge print cartridge.

The check valve that adopts is an assembly, the leather cup that is fixed between the two by end cover, gland and periphery extruding constitutes, there is a valve outlet port at cover center, the end, on the end face at outlet place, be formed with four projections and center on a bulge loop that exports, bulge loop and projection are with height and four road notches are arranged, thereby can together constitute the part in black road with installation hole inwall or envelope film.The gland center is a valve face, and there is valve inlet at the edge, and there is valve opening at the leather cup center, normally off is to rely on the elasticity of leather cup self to make valve opening closely be pressed on the valve face, the conducting state of valve is that valve opening leaves valve face under external force, and like this, cooperating between check valve and pore, the ink supply port can make the balance that keep-ups pressure in the black chamber, thereby replaced sponge, though check valve occupies black chamber certain space, relative Sponge, occupied space is just much smaller, has improved Rong Moliang.

Structure of the present invention can be used for monochromatic print cartridge, also can be used for the polychrome print cartridge, be to be suitable for too when separate black chamber is arranged in the box body more than three or three, as long as each black chamber all be provided with one be positioned on the lid and separate pore, on cavity and air guide blocking solution plug, each black chamber all is provided with the communication passage between separate separately ink supply port, check valve and the three.

Black road part is surrounded by box wall between China ink chamber, check valve and the ink supply port, part is surrounded with the envelope film by the groove that forms on the box body outer wall, such design can make based on print cartridge of the present invention capillarity in the check valve Vomitory is strengthened, prevent disconnected China ink, simultaneously, be convenient in the manufacturing be shaped, manufacturability is more reasonable.

The present invention can comprise that also one presses the guard shield that contacts with the print cartridge end face with bottom surface elasticity at least, one spanner position is arranged at the top of guard shield, be used for the assembling between print cartridge and guard shield or separate, be provided with the hole envelope corresponding with the joint portion of print cartridge end face with the pore position, be provided with the mouth envelope corresponding with the ink supply port position with the joint portion of print cartridge bottom surface, this makes print cartridge China ink and air is effectively isolated in the time of dispatching from the factory, storing in a warehouse, transport before using, the quality that assurance is black, simultaneously, prevent the outflow of China ink.

Description of drawings

Fig. 1: based on the STRUCTURE DECOMPOSITION figure of monochromatic print cartridge embodiment of the present invention;

Fig. 2: the STRUCTURE DECOMPOSITION figure of the monochromatic print cartridge embodiment in another visual angle;

Fig. 3: the structural front view of monochromatic print cartridge embodiment;

The rearview of Fig. 4: Fig. 3;

The vertical view of Fig. 5: Fig. 3;

The upward view of Fig. 6: Fig. 3;

The A-A cutaway view of Fig. 7: Fig. 3;

The B-B cutaway view of Fig. 8: Fig. 5;

Fig. 9: based on the STRUCTURE DECOMPOSITION figure of Three-colour ink cartridge embodiment of the present invention;

Figure 10: the STRUCTURE DECOMPOSITION figure of another angle Three-colour ink cartridge embodiment;

Figure 11: the structural front view of Three-colour ink cartridge embodiment;

The rearview of Figure 12: Figure 11;

The vertical view of Figure 13: Figure 11;

Figure 14: the Three-colour ink cartridge bottom surface is main shaft side figure;

The D-D cutaway view of Figure 15: Figure 11;

The E-E cutaway view of Figure 16: Figure 13;

The C-C cutaway view of Figure 17: Figure 11;

The A-A cutaway view of Figure 18: Figure 11;

The B-B cutaway view of Figure 19: Figure 11;

Figure 20: the STRUCTURE DECOMPOSITION figure of check valve assembly of the present invention;

Figure 21: the shaft side figure of existing monochromatic print cartridge;

Figure 22: the cut-away view of existing monochromatic print cartridge.

The invention will be further described below in conjunction with two embodiment and accompanying drawing thereof.

Embodiment

First embodiment:

Referring to Fig. 1, this example is a monochromatic print cartridge, be that a black chamber is arranged in the box body 2, welding between lid 1 and the box body 2, the bottom of box body 2 is formed with a check valve installation hole 3, and check valve is constituted by the leather cup 9 that end cover 10, gland 8 and periphery extruding are fixed between the two, and check valve is contained in the installation hole 3 by a sealing ring 4, the inlet of valve is docked with Mo Daowu with leaking, and envelope film 11 is used to cover installation hole 3 and reaches the groove that joins with valve outlet port.Ink inducing element 6 is a corpus fibrosum, useful polypropylene, polyethylene, cellulose etc. have the material of better water absorbing properties to make, it is loaded in the ink supply port on the bottom surface, its outer end is pressed with a sealing ring 7, also have one to cover and connect the envelope film 5 that check valve is gone into port recess on box body 2 bottom surfaces, a spanner position 13 of being convenient to the print cartridge mounting or dismounting is arranged on the guard shield 12.Air guide blocking solution plug 15 is high density porous bodies made from macromolecular material, available material has polyster fibre, PET, polyethylene, polypropylene etc., it is pressed in the pore that is positioned on the lid 1, when print cartridge cover upper shield 12, the hole that is positioned on the guard shield 12 seals 14 with the shutoff pore.

Referring to Fig. 2,14 upper ends are sealed in the hole of shutoff pore 21 recess, and it flexibly tightly is enclosed within on the post 17 that forms on the guard shield 12.Guard shield 12 is by " two wing plates 16,20 of [" shape and web 18 constitute, and seal the mouth envelope 19 of ink supply port on the wing plate 20 in addition, and it is a projection that forms on the wing plate 20.

Referring to Fig. 3, Fig. 4, there is a row to have the positioning bar 22 on inclined-plane on the lid, cartridge outer surface has a groove 23, and one end 25 enters the upper end of ink supply port 24, and the other end enters the installation hole 3 of check valve.

Referring to Fig. 5, pore 21 is positioned at the top of lid substantially, and the positioning bar 22 that has the inclined-plane has twice.

Referring to Fig. 6, the outer surface of box body bottom also has a groove 27, and one end 26 enters the valve body installation hole, and the other end enters black chamber, and ink supply port 24 is from inside to outside by justifying to oval transition.

Referring to Fig. 7, though ink supply port 24 is positioned at the below in black chamber 28, directly be not communicated with, but be communicated with by check valve and black road with black chamber 28.Ink supply port 24 is built-in with an ink inducing element 6, also is pressed with a sealing ring 7 outside it.

Referring to Fig. 8, an air guide blocking solution plug 15 is housed in the pore 21 on the lid, the lid lower surface forms a last cavity 29 that surrounds pore 21, and the aperture 30 of pore 21 in black chamber 28 is positioned at the bottom of cavity 29 lower planes 31.Though the installation hole 3 of check valve is positioned at the sidepiece of box body, it directly is not communicated with black chamber 28, but is communicated with by the aforementioned black road that is made of groove 27 and envelope film 5 thereof.

Second embodiment:

Referring to Fig. 9, this example is a Three-colour ink cartridge, and three separate black chamber 28A, 28B and 28C are promptly arranged in the box body 2.There is a pore 21 in lid 1 relative each black chamber, and it is built-in with air guide blocking solution plug 15.Box body 2 sides should have three check valve installation holes 3 and two envelope film 11A and 11B mutually.Check valve assembly is made of the leather cup 9 that end cover 10, gland 8 and periphery extruding are fixed between the two.Respectively be equipped with an ink inducing element 6 and a sealing ring 7 in three ink supply ports.Three holes 17 corresponding with pore 21 positions are arranged at guard shield 12 tops, and the hole envelope 14 that rubber is made is contained in the hole 17, and guard shield 12 tops also are provided with spanner position 13, the mouth envelope 19 that the bottom has a slice silica gel to make, and when print cartridge enters guard shield 12, mouthful envelope 19 salable three ink supply ports.The material of the part that does not particularly point out in this example, and formation are identical with first embodiment.

Referring to Figure 10, a row inclined-plane positioning bar 22 is arranged on the lid, guard shield 12 has formation " three plates of [" shape, wing plate 20,16 is corresponding with print cartridge ink supply port and pore place face respectively, and integrally formed with web 18, spanner position 13 forms in the end of wing plate 16, and mouthful envelope 19 is fixed on the upper surface of wing plate 20.

Referring to Figure 11, in this side of box body 2 a check valve installation hole 3A is arranged, the end 26A of groove 27A enters black chamber 28A, and the other end leads to installation hole 3A.The end 25B of groove 23B enters the upper end of ink supply port 24B, and the other end leads to the check valve installation hole 3B that is positioned on box body 2 another sides.

Referring to Figure 12, two check valve installation hole 3B, 3C are arranged on this side of box body 2.The end 25A of groove 23A enters the upper end of ink supply port 24A, and the other end is communicated with check valve installation hole 3A on being positioned at box body 2 another sides.The end 26B of groove 27B enters black chamber 28B, and the other end links to each other with installation hole 3B.The end 26C of groove 27C is communicated with black chamber 28C, and the other end links to each other with installation hole 3C.

Referring to Figure 13, pore 21A, the 21B on the lid 1,21C are communicated with three black chambeies respectively correspondingly.The positioning bar 22 that has the inclined-plane has five roads.

Referring to Figure 14, the endoporus of three

ink supply port

24A, 24B, 24C is circle, and outer hole be an ellipse.

Referring to Figure 15, after can seeing lid 1 and box body 2 usefulness ultrasonic bonding on this section, form two independently black chamber 28A, 28B, and the pore 21A of built-in air guide blocking solution plug 15A is arranged in the zone of black chamber 28A.Can find out also among Figure 15 that

ink supply port

24A, 24B directly do not communicate with pairing black chamber 28A, 28B, its inside is equipped with ink inducing element 6A, 6B and sealing ring 7A, 7B respectively.Make the demoulding for the ease of box body, ink supply port be not arranged on corresponding black chamber under, but adopt arrangement as the figure coordinated transposition.

Referring to Figure 16, can see that from this section the aperture 30B of pore 21B in black chamber 28B is positioned at the bottom of cavity 29B lower plane 31B.

Referring to Figure 17, lid 1 has cavity 29C on equally in 28C district, black chamber, and the aperture 30C of this district's pore is positioned at the bottom of cavity 29C lower plane 31C.Because black chamber 28C is horizontal in box body 2, so the box body two sides are two walls in this chamber, simultaneously, check valve installation hole 3C, the ink supply port 24C supporting with this chamber all are positioned at this bottom, chamber, be communicated with by black road between the three, black road by form in hole in box body 2 inwalls and the groove on the outer wall, two kinds of versions of envelope film form alone or in combination.

Referring to Figure 18, visible three separate black chamber 28A, 28B, 28C and

pore

21A, 21B, the deployment scenarios of 21C in section.

Referring to Figure 19, after the end cover 10A, gland 8A, leather cup 9A are assembled into check valve assembly, insert among the installation hole 3A and in circumferential welding.

Referring to Figure 20, the present invention is special, and the check valve that adopts has illustrated structure, and gland 8 is a moulding, has a flange, the ring-type lower surface 32 of flange to be used for overlapping 10 assembly weldings the end of with outside it, also has 35, one leather cup fixed pressure rings 34 of 33, three inlets of a valve face.The bowl end of the leather cup 9 that elastic caoutchouc is made, make progress, and an elastic packing is arranged be pressed on the hole 36 on the valve face 33 in the bottom, is used to be extruded fixing shirt rim 37 when also having an assembling.End cover 10 is a moulding, has 38, one in an annular welding face with the installation hole seal welding to export 42, is formed with four projections 39 and reaches around the bulge loop 41 of outlet 42 on the end face at outlet 42 places, and bulge loop 41 and projection 39 are with height and four road notches 40 are arranged.

Claims

1, print cartridge has the box body in black chamber and is positioned at the lid that push up in black chamber in comprising, have on the lid to be communicated with black chamber and extraneous pore, and box bottom has the ink supply port of built-in ink inducing element, it is characterized in that:

The lid lower surface has the last cavity that surrounds pore, and the aperture of pore in black chamber is positioned at the bottom of this cavity, and pore is built-in with air guide blocking solution plug;

One row inclined-plane positioning bar is arranged, when being used to pack into printer and box storehouse jam-packed location on the lid;

The box body side is provided with check valve, and the check valve inlet is communicated with bottom, black chamber, and ink supply port is led in outlet;

Ink supply port also is equipped with a sealing ring in the outside of ink inducing element, and ink supply port has by outer the bellmouth orifice of circle to oval transition.

2, print cartridge according to claim 1 is characterized in that:

Described check valve is an assembly, and the leather cup that is fixed between the two by end cover, gland and periphery extruding constitutes;

There is a valve outlet port at cover center, the end, and there is projection the outer face and centers on the bulge loop that exports and have conduit;

The gland center is a valve face, and there is valve inlet at the edge;

There is valve opening at the leather cup center, and normally off is to rely on the elasticity of leather cup self that valve opening closely is pressed on the valve face, and the conducting state of valve is that valve opening leaves valve face under external force.

3, print cartridge according to claim 1 is characterized in that:

Black chamber separate more than three or three is arranged in the box body;

Each black chamber all has one to be positioned on the lid and separate pore, last cavity and air guide blocking solution plug;

Each black chamber all has the company's ink channel between ink supply port, check valve and the three separately independently of each other.

4, print cartridge according to claim 3 is characterized in that:

Channel part is surrounded by box wall between China ink chamber, check valve and the ink supply port, and part is surrounded with the envelope film by the groove that forms on the box body outer wall.

5, according to claim 1 or 2 or 3 or 4 described print cartridges, it is characterized in that:

Comprise that also one presses the guard shield that contacts with the print cartridge end face with bottom surface elasticity at least;

One spanner position is arranged at the top of guard shield, is used for the assembling between print cartridge and guard shield or separates;

Be provided with the hole envelope corresponding with the joint portion of print cartridge end face with the pore position;

Be provided with the mouth envelope corresponding with the joint portion of print cartridge bottom surface with the ink supply port position.

6, print cartridge according to claim 5 is characterized in that:

Described hole envelope is one to be fixed on the elastomer block on the guard shield, and described mouthful of envelope is one to comprise the flexible silicon rubber cushion in ink supply port zone.

7, print cartridge according to claim 5 is characterized in that: described mouthful envelope be one with the projection of corresponding position, ink supply port position.

8, print cartridge according to claim 5 is characterized in that: described guard shield have formation " three panels of [" shape, two wing plate is corresponding with print cartridge ink supply port and pore place face, the spanner position forms in the end of upper flange.