CN205507365U - Developing cartridge - Google Patents
Developing cartridge Download PDFInfo
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- CN205507365U CN205507365U CN201620271536.1U CN201620271536U CN205507365U CN 205507365 U CN205507365 U CN 205507365U CN 201620271536 U CN201620271536 U CN 201620271536U CN 205507365 U CN205507365 U CN 205507365U
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- revolving force
- rotation axis
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- receiving element
- transmission gear
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- 230000005540 biological transmission Effects 0.000 claims abstract description 59
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
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- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002153 concerted effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000354 decomposition reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model relates to a developing cartridge belongs to the electronic camera formation of image and prints technical field. It includes box body, developing cell and drive switching unit, and the drive switching unit is received the piece and is used for the transmission gear to developer roll transmission revolving force including the piece that resets, hookup control, development revolving force. Through between each part of drive switching unit and with the cooperation of development end cover, drive end end cover, realize the development revolving force receive between the development operating period with the host computer on the hookup of developing apparatus drive output link, and break away from the hookup with it during non - development to realize developer roll drive switching 's function. Drive switching unit simple structure among this developing cartridge is convenient for make and is assembled to practice thrift developing cartridge's manufacturing cost.
Description
Technical field
This utility model relates to a kind of Delevoping cartridge being removably mounted on electrophotographic image forming.
Background technology
Electrophotographic image forming is a kind of to utilize electrofax principle that image is formed at the print media such as equipment on paper, including photocopier, printer, facsimile machine, all-in-one etc., generally includes main frame and is removably installed in the Delevoping cartridge in this main frame；Wherein, Delevoping cartridge at least have provide developing agent in photosensitive drums with the developer roll of developing electrostatic latent image, be generally also provided with the photosensitive drums for forming developing electrostatic image.
The patent documentation of Publication No. CN104541212A discloses a kind of electrophotographic image forming and is removably mounted on the Delevoping cartridge on this electrophotographic image forming.
As shown in its Figure of description 41, the main frame of this electrophotographic image forming has drum and drives output link 61 and developing unit to drive output link 62, and driving from main frame is received revolving force and export to the bulging revolving force receiving element 4a being located on Delevoping cartridge as shown in figure 43 and development revolving force receiving element 474 by the two at motor；As shown in its Figure of description 7, this main frame also has main frame pushing member 80, for applying to make it rotate around rotation axis X relative to drum unit 8 along the thrust in F1 direction to developing cell 9.
As shown in its Figure of description 43 to 53, this Delevoping cartridge is provided with the driving switching device for switching over the driving of developer roll 6, during development operation, receive revolving force at output link 62 for driving from developing unit and carry out developer roll rotating driving, and cut off the driving to developer roll during non-development, and then developer roll is made to stop continuing photosensitive drums for powder during non-development.Development revolving force receiving element 474, connection control piece 272, transmission gear 71 and spring 70 are constituted to drive switching device to include, the end of development revolving force receiving element 474 is provided with revolving force acceptance division 474b.
As shown in Figure 53, during non-development, couple control piece 272 to rotate around rotation axis X relative to drive end end cap 424 with development end cap 432, by coordinating of directed section 271i and guide portion 424b, connection control piece 272 is promoted to move along the direction being parallel to rotation axis X towards the direction away from drive end end cap 424, and then promote transmission gear 71 to move towards the direction away from revolving force receiving element 474, thus realize this and couple for the disengaging between output arm 474a and input arm 71n of coupling connection, to reach to cut off developing drive.
Couple with the disengaging of input arm 71n to realize output arm 474a, require that the transmission relative developing roller gear 69 of gear 71 slides along the direction being parallel to rotation axis X, cause the two can only be designed as spur gear, it is easily caused that to pass to the rotary speed of developer roll uneven, the raising of the quality that is unfavorable for developing；And in order to any moment all can slide relatively, higher to machining accuracy and installation requirement；In order to realize realizing again after output arm 474a couples with the disengaging of input arm 71n coupling, the accuracy of manufacture of the two is required height, causes the manufacturing cost of whole Delevoping cartridge to increase.
Summary of the invention
The purpose of this utility model is to provide a kind of Delevoping cartridge with developing drive handoff functionality.
To achieve these goals, the Delevoping cartridge that this utility model provides includes box body, developing cell and drives switch unit.Developing cell includes developing cell framework and can be rotated to support on the developer roll on this developing cell framework.Developing cell can be bearing on box body around rotation axis reciprocating rotation, and this rotation axis is the rotation axis of transmission gear also for the rotation axis of development revolving force receiving element.In box body with developing cell framework, one is provided with limiting section, and another one is provided with guide portion.Drive switch unit include return unit, couple control piece, development revolving force receiving element and for developer roll transmission revolving force transmission gear；Couple control piece and include limited portion, directed section and force section, and its relative developing cell framework can move back and forth along the direction being parallel to above-mentioned rotation axis；Development revolving force receiving element reciprocatingly can couple with transmission gear coupling along being parallel to the direction of above-mentioned rotation axis, i.e. during development operation with non-development operation during, both is in coupling coupled situation.With developing cell relative to box body around above-mentioned rotation axis reciprocating rotation between coupled position and disengaging configuration, by coordinating of limited portion and limiting section and coordinating of directed section and guide portion, development revolving force receiving element is made a concerted effort by the force section coupling control piece with return unit, driving development revolving force receiving element to move back and forth along the direction being parallel to rotation axis, i.e. realize driving output link during development operation with developing unit on main frame couple connection and the connection of the disengaging during non-development.
From above scheme, move owing to being parallel to the direction of rotation axis X by coupling control piece control development revolving force receiving element edge, thus drive output link couple connection and transmit the revolving force needed for development with developing unit on main frame during development operation, and drive output link disengaging to couple, to realize the handoff functionality of developing drive with developing unit during non-development；And during whole, development revolving force receiving element is in, with transmission gear, the state of being of coupled connections all the time, it is possible not only to transmission gear is set as helical gear and improves development quality, and is easy to be located at and couples therebetween coupling mechanism, to reduce the manufacturing cost of Delevoping cartridge.
One concrete scheme includes guide rod for development revolving force receiving element, output arm, is positioned at the revolving force acceptance division of the axial one end of this guide rod, and couples the forced section of force section applying power on control piece for receiving.Transmission gear is provided with the first receiving chamber of axially open at one end, this the first receiving intracavity is provided with input arm, the axial other end of transmission gear is provided with and accommodates the pilot hole that connect of chamber with first, another axial end of guide rod through first accommodate chamber and with pilot hole matched in clearance.Output arm in the position at input arm place with input arm abutting contact.Simple in construction, it is simple to manufacture and assemble.
More specifically scheme is that revolving force receiving element radially extends along transmission gear or forms above-mentioned output arm along being parallel to rotation axis towards the first direction extension accommodating bottom surface, chamber；First accommodates chamber is parallel to the inwall of rotation axis and radially extends along transmission gear or first accommodate the bottom surface in chamber and accommodate uncovered direction, chamber towards first and extend and form above-mentioned input arm along being parallel to above-mentioned rotation axis.Between development revolving force receiving element with transmission gear to couple draw bail simply effective, and be easy to manufacture.
Another concrete scheme be guide portion include relative to above-mentioned rotation axis along the first transmission gear rotates the guide surface that is in tilted layout of circumference and/or directed section includes relative to above-mentioned rotation axis along rotating circumferential directed be in tilted layout.At least one between guide surface and directed is set, and rotates against axis and be in tilted layout along rotating circumference, be effectively improved movement relative rotary motion be converted to along being parallel to rotation axis X-direction.
More specifically scheme be the body of development revolving force receiving element be circular bosses structure, the path end face of this circular bosses structure extends along the direction being parallel to rotation axis and forms revolving force acceptance division.The body coupling control piece is ring body structurc, and the outer peripheral face of this ring body structurc radially convexes to form above-mentioned directed section and limited portion.Ring body structurc is placed on the minor diameter part of circular bosses structure exceptionally and therewith matched in clearance.The shoulder face of circular bosses structure constitutes forced section, and the end face that ring body structurc and shoulder face lean constitutes force section, simple in construction, and is easy to manufacture.
One scheme the most concrete be the bigger diameter end face of circular bosses structure extend along the direction being parallel to rotation axis formed guide rod and with guide rod coaxial arrangement be located at the ring body outside this guide rod, this ring body is provided with more than one edge and is parallel to the first breach that rotation axis direction is arranged.Transmission gear is provided with the first receiving chamber of axially open at one end, is provided with and accommodates the pilot hole that connect of chamber with first on the axial other end of transmission gear, guide rod away from revolving force acceptance division one end through first accommodate chamber and with pilot hole matched in clearance.The bottom surface of transmission gear extends along the direction being parallel to rotation axis and forms the projection matched with the first breach；Return unit is spring, and spring is placed on outside guide rod and matched in clearance therewith, and one end of spring is resisted against on bigger diameter end face, and the other end is resisted against on the bottom surface in the first receiving chamber.
Another the most concrete scheme is that developing cell framework includes the end cap that develops, development end cap convexes to form along the direction being parallel to rotation axis and columned rotationally supports seat, this rotationally supports seat and is provided with the second receiving chamber of axially open at one end, second accommodates chamber is used for accommodating driving switch unit, the axial other end rotationally supporting seat is provided with the through hole for exposing revolving force acceptance division, and the second sidewall accommodating chamber is provided with the second breach.Box body includes drive end end cap, and the head face hump of this drive end end cap neighbouring development end cap forms above-mentioned limiting section, the free end in above-mentioned limited portion through the second breach and with limiting section abutting contact.
Another concrete scheme is that the reset force of return unit forces development revolving force receiving element away from transmission gear.During development operation, development revolving force receiving element can move along X-axis line direction, it is simple to developing unit drives to set up between output link with development revolving force receiving element and couples connection.
More specifically scheme is that return unit includes homopolarity the first magnet positioned opposite and the second magnet, and the first magnet is fixed on development revolving force receiving element, and the second magnet is fixed on transmission gear.It is easy to the design of return unit structure and the layout of fixed position, and assembling procedure can be simplified with transmitting on gear by magnet being embedded in development revolving force receiving element.
Preferably scheme is that Delevoping cartridge also includes drum unit.Drum unit includes drum unit framework, drum revolving force receiving element and can be rotated to support on the photosensitive drums on drum unit framework.Drum unit framework is fixing with box body to be connected.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of this utility model first embodiment；
Fig. 2 is the STRUCTURE DECOMPOSITION figure of this utility model first embodiment；
Fig. 3 is axonometric chart different with Fig. 1 visual angle after this utility model first embodiment omits photosensitive drums protective cover；
Fig. 4 is the axonometric chart of end cap of developing in this utility model first embodiment；
Fig. 5 is the STRUCTURE DECOMPOSITION figure coupling control piece and development revolving force receiving element in this utility model first embodiment；
Fig. 6 is return unit and the STRUCTURE DECOMPOSITION figure transmitting gear in this utility model first embodiment；
Fig. 7 is the STRUCTURE DECOMPOSITION figure coupling control piece and development end cap in this utility model first embodiment；
Fig. 8 is the drive end end cap in this utility model first embodiment, development end cap, development revolving force receiving element, return unit and the STRUCTURE DECOMPOSITION figure of transmission gear；
Fig. 9 is developer roll in this utility model first embodiment, photosensitive drums, transmission gear and couples control piece at developing cell relative to drive end end cap relative motion state in rotation axis X rotary course；
Figure 10 is to couple control piece in this utility model first embodiment and the end cap relative position relation figure when the revolving force receiving element that develops is in coupled situation that develops；
Figure 11 is to couple control piece in this utility model first embodiment to be in relative position relation figure when departing from coupled situation with development end cap at the revolving force receiving element that develops；
Figure 12 is develop in this utility model the second embodiment revolving force receiving element, return unit and the STRUCTURE DECOMPOSITION figure of transmission gear；
Figure 13 is develop in this utility model the 3rd embodiment revolving force receiving element, return unit and the STRUCTURE DECOMPOSITION figure of transmission gear；
Figure 14 is to couple control piece in this utility model the 4th embodiment and be located at the STRUCTURE DECOMPOSITION figure of force section on development end cap.
Below in conjunction with embodiment and accompanying drawing thereof, the utility model is described in further detail.
Detailed description of the invention
Developer roll in Delevoping cartridge is mainly driven switching device to improve by this utility model, and other structures of Delevoping cartridge can be designed according to existing product completely.
First embodiment
See Fig. 1, Delevoping cartridge by drive end end cap 11, conducting end end cap 12, photosensitive drums protective cover 13, torque spring, drum revolving force receiving element 3, drum unit 4, developing cell 5 and have development revolving force receiving element 2 driving switch unit constitute.Drive end end cap 11 and conducting end end cap 12 constitute the box body of the present embodiment, and development revolving force receiving element 2 can rotate around rotation axis X.
Seeing Fig. 2 and Fig. 3, drive end end cap 11 is provided with support shaft holes 111 and axis hole 112, is formed with the interior shaft shoulder 1120 in support shaft holes 111.Conducting end end cap 12 is provided with support column 121 and pin hole 122.
Photosensitive drums protective cover 13 passes through buckle 130 and is located at the fastening of draw-in groove on upper drive end end cap 11 and conducting end end cap 12; and be removably fastened on box body; photosensitive drums 41 exposed surface to be protected during transport Delevoping cartridge at storage, needed from box body, take off photosensitive drums protective cover 13 before loading main frame.
Drum unit 4 has drum unit framework 40 and the photosensitive drums 41 that can be rotated to support on drum unit framework 40 and charging roller 42.One end of photosensitive drums 41 drum barrel is socketed on an axial end of bulging revolving force receiving element 3, so that the revolving force that drum revolving force receiving element 3 receives from main frame is directly passed to photosensitive drums 41.
Developing cell 5 has developing cell framework 50 and the developer roll 54 that can be rotated to support on developing cell framework 50.Developing cell framework 50 has the development end cap 51 being positioned on its longitudinal end, and the other end is provided with the support shaft holes 52 matched with support column 121.Development end cap 51 is provided with and rotationally supports seat 511, and the part of development revolving force receiving element 2 is stretched out from the through hole 512 being located at the axial end rotationally supporting seat 511 and rotationally supported seat 511 and expose, and rotationally supports and is formed with the shaft shoulder 513 on the free end of seat 511.
Drive end end cap 11 and conducting end end cap 12 are fixed by a pin on two longitudinal ends of drum unit framework 40 respectively, and the free end of drum revolving force receiving element 3 exposes through axis hole 112；One pin (not shown) stretches in photosensitive drums 41 through pin hole 122, and the rotation to photosensitive drums 41 supports.
Support column 121 stretches in axis hole 52, rotationally support in seat 511 stretches into support shaft holes 111 and matched in clearance therewith, and the shaft shoulder 513 is resisted against on the interior shaft shoulder 1120, by support column 121 to the supporting of axis hole 52 and the support shaft holes 111 supporting to rotationally supporting seat 511, developing cell 5 can be bearing on drive end end cap 11 and conducting end end cap 12 around rotation axis X reciprocating rotation, can be bearing on box body reciprocating rotation.
Developing cell framework 50 is provided with the thrust acceptance division 53 for Receiving Host pushing member thrust near the lower section of development end cap 51, so that developing cell 5 overcomes torque spring 14 to be applied to the torque on developing cell 5 and rotate around rotation axis X, when main frame pushing member is reset to initial position, developing cell 5, by under the effect in torque spring 14 elastic restoring force being located between developing cell 5 and drum unit 4, promotes developing cell 5 to be rotated in the opposite sense around rotation axis X.
See Fig. 4, rotationally supporting seat 511 is the cylindrical-shaped structure being located on development end cap 51, which is provided with cylindrical-shaped structure axial open at one end second receiving chamber 5110, and on the axial other end, it is provided with the through hole 512 connected with the second receiving chamber 5110, it is formed with the second breach 514 on second sidewall accommodating chamber 5110, second bottom accommodating chamber 5110 convexes to form three around projection 515 uniform for rotation axis X along the direction being parallel to rotation axis X, projection 515 constitutes the guide portion of the present embodiment, it is formed on projection 515 and rotates against the guide surface 5150 that axis X is in tilted layout along the rotation circumference around the revolving force receiving element 2 that develops as shown in Figure 1.
See Fig. 5 and Fig. 6, drive switch unit to be constituted by coupling control piece 61, development revolving force receiving element 2, spring 63 and transmission gear 64.
The body coupling control piece 61 is a ring body structurc 610, and the outer peripheral face of ring body structurc 610 radially convexes to form three directed sections 611 and a limited portion 612.Three directed sections 611 are evenly arranged along the circumference of ring body structurc 610.Being formed with the directed face 6110 matched with guide surface 5150 on directed section 611, the most directed face 6110 also rotates against the rotation circumference of axis X edge development revolving force receiving element 2 and is in tilted layout.
The body of development revolving force receiving element 2 is circular bosses structure 20, the upper axial end of circular bosses structure 20 is axial along it, the i.e. path end face of circular bosses structure 20 extends along the direction being parallel to rotation axis X and forms the revolving force acceptance division 21 that cross section is triangle, lower axial end is along its axially extending formation guide rod 22 and ring body 23, ring body 23 and guide rod 22 coaxial arrangement and be positioned at outside guide rod 22, ring body 23 is evenly provided with 4 the first breach 231 along the rotation circumference of development revolving force receiving element 2, ring body 23 is divided into four output arms 232 by these 4 the first breach 231 equably, gap 201 between ring body 23 and guide rod 22 is for accommodating the upper end of spring 63.Guide rod 22 forms necked-down end portion 220 away from the end constriction of circular bosses structure 20.
The face shaping substantially cylindrical of transmission gear 64, transmission gear 64 is provided with the first receiving chamber 640 of axially open at one end, and another axial end is formed and accommodates, with first, the pilot hole 644 that chamber 640 connects.The radial outer wall being positioned at transmission gear 64 is provided with helical teeth 642 circumferentially.First edge, bottom surface accommodating chamber 640 is parallel to rotation axis X, i.e. extends, towards the first receiving uncovered direction, chamber 640, four projections that formation matches with the first breach 231 along the axial of transmission gear 64, and these four projections constitute the input arm 641 of the present embodiment.
The necked-down end portion 220 of guide rod 22 sequentially passes through spring 63, accommodates chamber 640 and arrive the pilot hole 644 of matched in clearance therewith so that revolving force receiving element 61 can axial along guide rod 22, i.e. relatively transmit gear 64 along the direction being parallel to rotation axis X and move back and forth；At the revolution along development rotation force transmission element 2 upwards, in input arm 641 inserts the first breach 231 and abut with output arm 232 and contact, i.e. output arm 232 is in the position of input arm 641 and input arm 641 abutting contact, thus realize develop revolving force receiving element 2 relatively transmit gear 64 along the direction reciprocating movement be parallel to rotation axis X with transmission gear 64 keep couple connection, with the revolving force that revolving force acceptance division 21 receives is passed to transmission gear 64.
The upper end of spring 63 is resisted against on the bigger diameter end face of circular bosses structure 20, lower end is resisted against on the bottom surface in the first receiving chamber 640, it constitutes the return unit of the present embodiment, and its elastic restoring force constitutes the reset force of the present embodiment, is used for forcing development revolving force receiving element 2 away from transmission gear 64.Ring body structurc 610 is enclosed within the minor diameter part of circular bosses structure 20 exceptionally and therewith matched in clearance, the lower surface of torus structure 610 is resisted against on the shoulder face 201 of circular bosses structure 20, the lower surface of torus structure 610 constitutes the force section of the present embodiment, and shoulder face 201 constitutes the forced section of the present embodiment.
See Fig. 7, by connection control piece 61 with rotationally support after seat 511 is assembled together, control piece 61 will be coupled and load in the second receiving chamber 5110, limited portion 612 is from the second breach 514 stretches out the second receiving chamber 5110, and three directed sections 611 lay respectively in the gap between three guide portion 515, directed face 6110 aligns with guide surface 5150.
See Fig. 8, the development end cap 51 that will be equipped with coupling control piece 61 is assembled together with drive end end cap 11, and load in the second receiving chamber 5110 together with after development revolving force receiving element 2, spring 63 are assembled with transmission gear 64, at the development relative drive end end cap 11 of end cap 51 during rotation axis X rotates clockwise, limited portion 612 will be resisted against on limiting section 113.
Seeing Fig. 9, the revolving force received is driven developer roll 54 to rotate by developing roller gear 540 by transmission gear 64.
Seeing Fig. 1 to Figure 10, after being loaded on the main frame of electrophotographic image forming by Delevoping cartridge, development revolving force receiving element 2 and drum revolving force receiving element 3 couple with corresponding driving output link respectively.Owing to there is spring 63, under the effect of its elastic restoring force, development revolving force receiving element 2 can move back and forth along the direction being parallel to rotation axis X, consequently facilitating development revolving force receiving element 2 drives coupling of output link with developing unit.Now, main frame pushing member on main frame does not applies thrust to thrust acceptance division 53, developing cell 5 and drum unit 4 are under the effect of the elastic restoring force of torque spring 14, box body relatively applies a torque centered by rotation axis X to developing cell 5, work side face or the spacer sleeve thereon of developer roll 54 is held against on the work side face of photosensitive drums 41 under the influence of this torque, to form the spacing needed for development between developer roll 54 and photosensitive drums 41, the elastic restoring force of spring 63 forces the revolving force acceptance division 21 of development revolving force receiving element 2 to be positioned at the position driving output link to couple with developing unit, the end face of the directed section 611 coupling control piece 61 is resisted against on the bottom surface in the second receiving chamber 5110, the i.e. relative box body of developing cell 5 is positioned at coupled position.Development revolving force receiving element 2 drives from developing unit and receives revolving force output link, and pass to revolving force transmit gear 64 with the connection that couples of input arm 641 by output arm 232, and revolving force is passed to developing roller gear 540 by gear transmission and drive developer roll 54 normally to rotate, develop supplying developing agent to photosensitive drums 41.
See Fig. 1 to Fig. 9 and Figure 11, when stopping printing, main frame pushing member on main frame applies thrust to thrust acceptance division 53, developing cell framework 50 is made to overcome the elastic restoring force of torque spring 14 to compress torque spring 14, i.e. developing cell 5 rotates around rotation axis X relative to box body, thus causes being formed more than gap needed for normal development between work side face and the work side face of photosensitive drums 41 of developer roll 54；Owing to limited portion 612 is resisted against on limiting section 113, thus force connection control piece 61 not rotate around rotation axis X with development end cap 51, under the guide surface 5150 effect with directed face 6110, connection control piece 61 is promoted to move along the direction being parallel to rotation axis X to the direction near transmission gear 64, to overcome the elastic restoring force of spring 63 to force development revolving force receiving element 2 along being parallel to the direction of rotation axis X near transmission gear 64, and driving output link disengaging to couple with developing unit, i.e. the relative box body of developing cell 5 is positioned at disengaging configuration.Drive the disengaging of output link to couple owing to development revolving force receiving element 2 achieves with developing unit, thus during non-development, cut off the driving to developer roll 41, stop proceeding photosensitive drums 41 for powder.
Thus in the force section of connection control piece 61, forced section is applied under the force action of the reset force of power and return unit, control development revolving force receiving element 2 and move back and forth along the direction being parallel to rotation axis X.
In the present embodiment, rotation axis X is the most also transmission gear 64, development rotation force transmission element 2 rotation axis in the course of the work.
Second embodiment
As the explanation to this utility model the second embodiment, the most only the difference with first embodiment is illustrated.
Seeing Figure 12, use the first magnetic piece 7631 and the second magnetic piece 7632 to substitute spring and constitute the return unit of the present embodiment, the first magnetic piece 7631 and the second magnetic piece 7632 are torus structure.
The necked-down end portion 7220 of guide rod 722 sequentially pass through after the endoporus of the first magnetic piece 7631 and the second magnetic piece 7632 with guide hole 7644 matched in clearance.
First magnetic piece 7631 is fixed on the bigger diameter end face of circular bosses structure 720 in the way of bonding, and the second magnetic piece 7632 is fixed on the bottom surface in the first receiving chamber 7640 in the way of bonding, and the first magnetic piece 7631 is that homopolarity is positioned opposite with the second magnetic piece 7632.
First magnetic piece 7631 constitutes the return unit of the present embodiment together with the second magnetic piece 7632, and repulsive force therebetween constitutes the reset force of the present embodiment, is used for forcing development revolving force receiving element 72 away from transmission gear 764.
3rd embodiment
As the explanation to this utility model the 3rd embodiment, the most only the difference with first embodiment is illustrated.
See Figure 13, the outer wall of guide rod 822 transversely convexes to form two round bars 8232 and is constituted the output arm of the present embodiment to substitute ring body in first embodiment, in transmission gear 864, the first bottom surface accommodating chamber 8640 convexes to form ring body 8641 along the direction being parallel to rotation axis X, being formed with two breach 8642 matched with round bar 8232 along the direction being parallel to rotation axis X on ring body 8641, being provided with the ring body 8641 of breach 8642 and substituting in first embodiment is the input arm of protruding composition the present embodiment bottom the first receiving chamber 8640.
The upper surface of spring 863 is resisted against on round bar 8232, rather than is resisted against on the bigger diameter end face of circular bosses structure 820.
4th embodiment
As the explanation to this utility model the 4th embodiment, the most only the difference with first embodiment is illustrated.
See Figure 14, omit the guide surface in the guide portion 9515 being located at development end cap 951, i.e. guide portion 9515 is spherical 95150 with the part of directed face 9611 phase separation being located on the directed section 9611 coupling control piece 961.
5th embodiment
As the explanation to this utility model the 5th embodiment, illustrate only for the difference with the 4th embodiment below.
See Figure 14, contrary with the 4th embodiment, use arcwall face to substitute the directed face 96110 being located on directed section 9611, and be located at the guide surface in the first embodiment not yet of the guide surface in guide portion 9515.
Central scope of the present utility model is that the driving switching mechanism of Delevoping cartridge is improved by passage, realize it and drive output link to couple with the developing unit on main frame to be moved back and forth along rotation axis X by control development revolving force receiving element during development operation, drive output link to depart from developing unit during non-development to couple, thus realize the switching that developer roll drives, according to this design, guide portion also has multiple obvious change with the setting of limiting section, such as guide portion is located on drive end end cap and stretches into the second receiving intracavity by the through hole being located on development end cap and coordinate with directed section, and limiting section is located on development end cap, can rotate around rotation axis X with development end cap so that coupling control piece；The sidewall that the setting of output arm and input arm also has multiple obvious change, such as input arm can be parallel to rotation axis X by the first receiving chamber is constituted along radially extending of gear of transmission；The position coupling control piece, development revolving force receiving element and return unit arranges also multiple obvious change, the reset force of such as return unit forces development revolving force receiving element near transmission gear, by guide portion being arranged to towards the direction extension away from transmission gear, couple control piece relative to the end cap that develops during rotation axis X rotates, promote development revolving force receiving element away from transmitting gear.
Claims (10)
1. Delevoping cartridge, including box body, developing cell and driving switch unit；
Described developing cell includes developing cell framework and can be rotated to support on the developer roll on described developing cell framework；
Described driving switch unit includes transmitting gear, return unit, connection control piece and development revolving force receiving element；
Described developing cell can be bearing on described box body around rotation axis reciprocating rotation, and described rotation axis is the rotation axis of described transmission gear and described development revolving force receiving element；
It is characterized in that:
Described connection control piece includes limited portion, directed section and force section；
Described box body is with described developing cell framework, and one is provided with limiting section, and another one is provided with guide portion；
Described connection control piece the most described developing cell framework can move back and forth along the direction being parallel to described rotation axis；
Described development revolving force receiving element reciprocatingly can couple with described transmission gear coupling along the direction being parallel to described rotation axis；
With the most described box body of described developing cell around described rotation axis reciprocating rotation between coupled position and disengaging configuration, by coordinating of described limited portion and described limiting section and coordinating of described directed section and described guide portion, described development revolving force receiving element is made a concerted effort by described force section and described return unit, drives described development revolving force receiving element to move back and forth along the direction being parallel to described rotation axis.
Delevoping cartridge the most according to claim 1, it is characterised in that:
Described development revolving force receiving element includes guide rod, output arm, is positioned at the revolving force acceptance division of axial one end of described guide rod, and for receiving the forced section of the power that described force section applies；
Described transmission gear is provided with the first receiving chamber of axially open at one end, described first accommodates intracavity is provided with input arm, the axial other end of described transmission gear is provided with and accommodates the pilot hole that connect of chamber with described first, another axial end of described guide rod through described first receiving chamber and with described pilot hole matched in clearance；
Described output arm in the position at described input arm place with described input arm abutting contact.
Delevoping cartridge the most according to claim 2, it is characterised in that:
Described revolving force receiving element radially extending or extending the described output arm of formation along being parallel to the described rotation axis direction towards the described first bottom surface accommodating chamber along described transmission gear；
Described first accommodates chamber is parallel to the inwall of described rotation axis radially extending or described first accommodating the bottom surface in chamber and extend towards described uncovered direction and form described input arm along being parallel to described rotation axis along described transmission gear.
Delevoping cartridge the most according to claim 1, it is characterised in that:
Described guide portion include relative to described rotation axis along described transmission gear rotate the guide surface that is in tilted layout of circumference and/or described directed section includes rotating circumferential directed be in tilted layout relative to described rotation axis along described.
Delevoping cartridge the most according to claim 4, it is characterised in that:
The body of described development revolving force receiving element is circular bosses structure, and the path end face of described circular bosses structure extends along the direction being parallel to described rotation axis and forms revolving force acceptance division；
The body of described connection control piece is ring body structurc, and the outer peripheral face of described ring body structurc forms described directed section and described limited portion along the radial protrusion of described ring body structurc；
Described ring body structurc is placed on the minor diameter part of described circular bosses structure exceptionally and therewith matched in clearance；
The shoulder face of described circular bosses structure constitutes the forced section for receiving the power that described force section applies, and the end face that described ring body structurc and described shoulder face lean constitutes described force section.
Delevoping cartridge the most according to claim 5, it is characterised in that:
The bigger diameter end face of described circular bosses structure extend along the direction being parallel to described rotation axis formed guide rod and with described guide rod coaxial arrangement be located at the ring body outside described guide rod, described ring body is provided with more than one edge and is parallel to the first breach that the direction of described rotation axis is arranged；
Described transmission gear is provided with the first receiving chamber of axially open at one end, the axial other end of described transmission gear is provided with and accommodates the pilot hole that connect of chamber with described first, described guide rod away from described revolving force acceptance division one end through described first receiving chamber and with described pilot hole matched in clearance；
The bottom surface of described transmission gear extends along the direction being parallel to described rotation axis and forms the projection matched with described first breach；
Described return unit is spring, and described spring is placed on outside described guide rod and matched in clearance therewith, and one end of described spring is resisted against on described bigger diameter end face, and the other end is resisted against on the described first bottom surface accommodating chamber.
Delevoping cartridge the most according to claim 5, it is characterised in that:
Described developing cell framework includes the end cap that develops, described development end cap convexes to form along the direction being parallel to described rotation axis and columned rotationally supports seat, the described seat that rotationally supports is provided with the second receiving chamber of axially open at one end, described second accommodates chamber is used for accommodating described driving switch unit, the described axial other end rotationally supporting seat is provided with the through hole for exposing described revolving force acceptance division, and the described second sidewall accommodating chamber is provided with the second breach；
Described box body includes drive end end cap, and described drive end end cap forms described limiting section adjacent to the head face hump of described development end cap, the free end in described limited portion through described second breach and with described limiting section abutting contact.
Delevoping cartridge the most according to claim 1, it is characterised in that:
The reset force of described return unit forces described development revolving force receiving element away from described transmission gear.
Delevoping cartridge the most according to claim 8, it is characterised in that:
Described return unit includes homopolarity the first magnet positioned opposite and the second magnet, and described first magnet is fixed on described development revolving force receiving element, and described second magnet is fixed on described transmission gear.
10. according to Delevoping cartridge described in any one of claim 1 to 9, it is characterised in that:
Also include that drum unit, described drum unit include drum unit framework, drum revolving force receiving element and can be rotated to support on the photosensitive drums on described drum unit framework；
Described drum unit framework is fixing with described box body to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620271536.1U CN205507365U (en) | 2016-03-31 | 2016-03-31 | Developing cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620271536.1U CN205507365U (en) | 2016-03-31 | 2016-03-31 | Developing cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205507365U true CN205507365U (en) | 2016-08-24 |
Family
ID=56735599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620271536.1U Expired - Fee Related CN205507365U (en) | 2016-03-31 | 2016-03-31 | Developing cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205507365U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676607A (en) * | 2016-03-31 | 2016-06-15 | 珠海天威飞马打印耗材有限公司 | Developing box |
| CN110850698A (en) * | 2019-11-28 | 2020-02-28 | 珠海天威飞马打印耗材有限公司 | Processing box |
-
2016
- 2016-03-31 CN CN201620271536.1U patent/CN205507365U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105676607A (en) * | 2016-03-31 | 2016-06-15 | 珠海天威飞马打印耗材有限公司 | Developing box |
| CN105676607B (en) * | 2016-03-31 | 2023-08-11 | 珠海天威飞马打印耗材有限公司 | Developing cartridge |
| CN110850698A (en) * | 2019-11-28 | 2020-02-28 | 珠海天威飞马打印耗材有限公司 | Processing box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 |