CN103698993B - Handle box - Google Patents
Handle box Download PDFInfo
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- CN103698993B CN103698993B CN201310703061.XA CN201310703061A CN103698993B CN 103698993 B CN103698993 B CN 103698993B CN 201310703061 A CN201310703061 A CN 201310703061A CN 103698993 B CN103698993 B CN 103698993B
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- handle box
- photosensitive drums
- developing frame
- driving
- driving axle
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Abstract
The invention provides a kind of handle box, including: photosensitive drums, drum frame, developing frame, developer roll and driving force acceptance division, driving force acceptance division is arranged on one end of developing frame, and including the driving axle being coaxially disposed and be bonded with each other and gear, developing frame is fixing with drum frame to be connected, developing frame is provided with pressurized assembly, when receiving pressure, being subjected to displacement at least partially of pressurized assembly, and make driving axle be disengaged with gear, when pressure is removed, axle is driven to recover to engage with gear.There is the advantage that the contact pressure between handle box simple in construction, developer roll and photosensitive drums is easily controllable and conveniently realizes photosensitive drums cleaning.
Description
Technical field
The present invention relates to electrophotographic image forming field, especially a kind of handle box for electrophotographic image forming.
Background technology
Electrophotographic image forming utilizes electrofax principle, through overcharge, exposure, development, transfer, the process such as fixing, forms visual picture on the media such as paper.In electrophotographic image forming, it is common to use the handle box removably installed carries out image procossing.Handle box be generally integrated with it can be formed electrostatic latent image photosensitive drums, to photosensitive drums supply toner with the developer roll of the electrostatic latent image in photosensitive drums that develops, hold carbon powder for development powder cabin, hold from photosensitive drums except under the waste powder hopper etc. of non-transfer useless powder to medium.After working long hours, photosensitive drums is likely to be stained with not easily except under useless powder and affect image quality, it is therefore desirable to photosensitive drums is carried out.When cleaning photosensitive drums, should cutting off the developer roll carbon powder supplying to photosensitive drums and answer, otherwise in photosensitive drums rotation process, developer roll does not constantly have cleaning action to photosensitive drums supply toner.
Existing a kind of handle box is as it is shown in figure 1, include developing frame 101, drum frame 103, be arranged on the developer roll 102 of developing frame 101 opening part and be arranged on the photosensitive drums 104 of drum frame 103 opening part, and wherein developing frame 101 can rotate relative to drum frame 103.When handle box normal operation, developer roll 102 contacts with photosensitive drums 104, so that the carbon dust on developer roll 102 is transferred to photosensitive drums 104, and the electrostatic latent image in photosensitive drums of developing 104.Wherein the first stressed member 105 contacts with the first force application part 201 in electrophotographic image forming, and the second stressed member 106 abuts with the second force application part 202 in electrophotographic image forming.When photosensitive drums 104 needs to clean, first force application part 201 applies the power in K direction to the first stressed member 105, and the first force application part 201 moves to B direction, so that the first stressed member 105 also moves to B direction, and the distance that first between stressed member 105 and the second stressed member 106 reduces, spring is compressed, due to what fix along B direction between the first stressed member 105 and developing frame 101, the upper surface of developing frame is driven by the first stressed member 105 and moves to drum frame, and then make developing frame rotate relative to drum frame, developer roll moves away from the direction of photosensitive drums, thus separating with photosensitive drums, developer roll is no longer to photosensitive drums supply toner, then photosensitive drums can be driven to be carried out.After cleaning completes, the upper surface of developing frame moves along J direction under the action of the spring, and developer roll contacts with photosensitive drums, to develop.
As seen from the above, for enabling photosensitive drums to clean, this handle box is made developing frame and drum frame relatively turnable.For realizing the contact when development of photosensitive drums and developer roll and separating when cleaning, handle box structure is extremely complex, relatively costly.Contact pressure between developer roll and photosensitive drums is not easy to control.
Summary of the invention
The main purpose of the present invention provides a kind of simple in construction and can realize the handle box that photosensitive drums is cleaned.
For achieving the above object, handle box provided by the invention, including: photosensitive drums, it can be formed electrostatic latent image, one end of photosensitive drums is provided with the drive division driving photosensitive drums to rotate；It is pivotably supported the drum frame of photosensitive drums；Developer roll, the electrostatic latent image in photosensitive drums of developing；It is pivotably supported the developing frame of developer roll, and holds useful in the carbon dust of development in developing frame；Driving force acceptance division, is used for receiving driving force and driving developer roll to rotate, is arranged on one end of developing frame, including the driving axle being coaxially disposed and be bonded with each other and gear part；Developing frame is fixing with drum frame to be connected, and developing frame is provided with pressurized assembly, when receiving pressure, being subjected to displacement at least partially of pressurized assembly, and make driving axle be disengaged with gear part, when pressure is removed, at least some of return-to-home position, drives axle to recover to engage with gear part.
From above scheme, developing frame is fixing with drum frame to be connected, and the structure of handle box is greatly simplified and contact pressure between developer roll and photosensitive drums is easily controllable.Driving axle is made to be disengaged with gear part by being subjected to displacement at least partially of pressurized assembly, driving force cannot be transferred to gear part, and then developer roll will not be further transferred to by gear part, when namely driving axle to depart from gear part, developer roll cannot be driven to rotate, the drive division of photosensitive drums receives driving force makes photosensitive drums rotation to be carried out, and does not rotate without because of developer roll and continues to photosensitive drums supply toner, even if developer roll contacts without the cleaning affecting photosensitive drums with photosensitive drums.
More particularly, drive and axle is cased with radially projecting shank, when being subjected to displacement at least partially, force shank displacement and then make the direction that driving axial developing frame move.
As seen from the above, can conveniently realize driving moving axially of axle by acting on radially projecting shank, move a certain distance to developing frame and driving axle can be made to be disengaged with gear part.
More specifically, stress assembly at least some of on be provided with inclined plane, pressure perpendicular in axially, this at least partially under stress displacement time, shank slides along inclined plane and is axially moveable.As seen from the above, power axially can be converted into being perpendicular to axial pressure easily by the setting of inclined plane, and order about driving axle and move.
More particularly, driving and be provided with protuberance on axle, gear part is provided with the groove coordinated with protuberance, when driving axle to engage with gear part, protuberance is contained in groove.The joint realizing simply and easily driving axle with gear part is coordinated by protuberance and groove.
More specifically, driving axle is provided with the boss that restriction shank moves axially.Utilize boss restriction the moving axially of shank, simple in construction, alternatively, it is possible to other limit methods are set.
Preferably, developing frame is provided with the first bias piece, with to driving axle to apply the biasing force making driving axle be in the position engaged with gear part.The first bias piece is utilized to realize driving the reset of axle.
Preferably, developing frame is provided with this second bias piece moved to original position at least partially forcing pressurized assembly.The second bias piece is utilized to realize the reset of pressurized assembly.
Preferably, pressurized assembly includes rotating bar and compressing bar, and when handle box is mounted to electrophotographic image forming, the one end compressing bar is compressed and moves, the other end rotates bar with abutting and makes rotation bar rotate, thus rotating bar to turn to the position of tilting from the position with the either flush of handle box.
More particularly, pressure containing part is provided with the 3rd bias piece of the position of the either flush forcing rotation bar to be positioned at handle box.
More specifically, described in compress bar be provided with elastic.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of existing handle box；
Fig. 2 is the axonometric chart of the embodiment of the present invention；
Fig. 3 is the structure chart of the drive end of the embodiment of the present invention；
Fig. 4 shows the partial view of developing frame drive end gearing relationships in the embodiment of the present invention；
Fig. 5 is the axonometric chart of pressurized assembly in the embodiment of the present invention；
Fig. 6 is the STRUCTURE DECOMPOSITION figure of pressurized assembly in the embodiment of the present invention；
Fig. 7 is the axonometric chart of driving force acceptance division in the embodiment of the present invention；
Fig. 8 is the STRUCTURE DECOMPOSITION figure of driving force acceptance division in the embodiment of the present invention；
Axonometric chart when Fig. 9 is that in the embodiment of the present invention, pressurized assembly is in primary importance；
Axonometric chart when Figure 10 is that in the embodiment of the present invention, pressurized assembly is in the second position；
Axonometric chart when Figure 11 is that in the embodiment of the present invention, pressurized assembly is in three positions；
When Figure 12 is that in the display embodiment of the present invention, pressurized assembly is in three positions, the axonometric chart of mutual alignment relation between each several part of driving force acceptance division.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is elaborated.
As in figure 2 it is shown, handle box includes parallel juxtaposed developing frame 1 and drum frame 2, and axially two ends respectively electrical contact end and drive end, connected by end cap 5 at drive end two framework, connected by end cap 6 at electrical contact end.The contiguous drive end of pressurized assembly 3 is arranged on developing frame 1, and the axially middle part of drum frame 2 is provided with handle 21.End cap 6 is fixed with two frameworks by screw 61.
As it is shown on figure 3, the drive end of handle box includes end cap 5, end cap 5 is also equipped with the screw fixing with framework.Drive division 22 and driving force acceptance division 4, expose from the opening part of end cap 5, wherein drive division 22 for receiving the driving force driving photosensitive drums to rotate in electrophotographic image forming, and driving force acceptance division 4 for receiving driving force in electrophotographic image forming, to drive the developer roll installed in developing frame 1 and powder feeding roller etc..
As shown in Figure 4, driving force acceptance division 4 includes the driving axle 41 and the gear part 42 that are coaxially disposed, gear part 42 includes the gear of 421 and 422 two stair-stepping different-diameters, and its middle gear 421 engages with the gear 11 of developer roll end, and gear 422 engages with the gear 12 of powder feeding roller end.When handle box normal operation, axle 41 is driven to receive driving force in electrophotographic image forming and rotate, thus driven gear 421,422 rotates, and gear 421,422 drives respective meshed gears 11,12 to rotate respectively, thus driving developer roll and powder feeding roller to rotate.Certainly, the gear 11 of developer roll end also directly can not be engaged with gear 421 but is connected by transition gear, with drive axle 41 coaxial also can only one of which gear, powder feeding roller, puddle support etc. are driven by the gear of transition gear and/or developer roll end.
As shown in Figure 5 and Figure 6, pressurized assembly 3 includes main body 31, rotates bar 32, compresses bar 33 and the spring 34,35,36 as bias piece.Wherein spring 35 is as an embodiment of the second bias piece, and main body 31 is provided with the protruded stigma 313 of fixing spring 35 one end, and the other end of spring 35 abuts with developing frame 1.Spring 34 lays respectively at the two ends of spring 35 as an embodiment of the 3rd bias piece, the protruded stigma 312 of main body 31 and the protruded stigma 323 of rotation bar 32, and spring 36 is arranged on and compresses on bar 33, and protruded stigma 333 is enclosed in spring 36.Main body 31 is provided with hold and rotates bar 32 and compress the space of bar 33, wherein rotate on bar 32 and be provided with arc sections 321, it is enclosed within the rotating shaft 315 of main body 31, and can rotate around it, main body 31 is provided with restriction and rotates the restriction face that bar 32 moves along other directions, thus rotating bar 32 315 to rotate the displacement without other directions around the shaft only relative to main body 31.Compress bar 33 and guide mechanism to make to compress bar 33 relatively main body 31 to move along the rectilinear direction guiding mechanism's restriction only with main body 31 is respectively arranged with.The one end compressing bar 33 is stretched out from main body 31, and for the extension 331 that can abut with the second force application part in electrophotographic image forming, the other end is the abutting part 332 abutted with the inclined-plane 324 rotating bar 32.Main body 31 is additionally provided with inclined-plane 311 for contacting with the specific part of driving force acceptance division 4, and the confined planes 314 contacted with developing frame 1.Rotate and bar 32 arranges compression zone 322.Compress the elastic being provided with arc in the middle of bar 33.
As shown in Figure 7 and Figure 8, driving force acceptance division 4 includes having driving axle 41, being enclosed within the gear part 42 of the radial outside in the major diameter portion driving axle 41, the shank 43 being enclosed within the radial outside of the minor diameter driving axle 41 and spring 44 of major diameter portion and minor diameter, wherein spring 44 is an embodiment of the first bias piece, its one end is enclosed within the end of the minor diameter driving axle 41, the other end abuts with developing frame 1, drives the end in major diameter portion of axle 41 for receiving driving force from electrophotographic image forming.Gear part 42 includes the stair-stepping gear 421 and 422 of two different-diameters, and the inner circumferential of its middle gear 422 is provided with groove 423, engages with driving protuberance 411 radially projecting on axle 41.The center porose 433 of shank 43 is enclosed within the radial outside of the minor diameter driving axle 41, along driving the axial of axle 41, one end of shank 43 abuts with major diameter portion, and the other end abuts with the boss 412 arranged in minor diameter, thus shank 43 relative drive shaft 41 not can axially move.The prominent handle 431 of shank 43 is provided with inclined-plane 432.Prominent handle 431 stretches in the main body 31 of pressurized assembly 3, and inclined-plane 432 contacts with the inclined-plane 311 of main body 31, and can only be axially moveable by the restriction of locating part (not shown).
Shown in Fig. 9 for handle box be placed in electrophotographic image forming outer time, the pressurized assembly of handle box and the state of driving force acceptance division.As it is shown in figure 9, under the effect of spring 44, gear part 42 remains engaged with driving axle 41, and under the effect of spring 35, the main body 31 of stress assembly 3 is maintained at initial position.Rotate bar 32 under the effect of spring 34, keep the position with handle box either flush.
Shown in Figure 10 when being arranged on work in electrophotographic image forming for handle box, the pressurized assembly of handle box and the state of driving force acceptance division.As shown in Figure 10, compress the extension 331 of bar 33 to abut with the second force application part in electrophotographic image forming, and move along main body 31 under being perpendicular to axial pressure effect, the abutting part 332 compressing bar 33 abuts with the inclined-plane 324 rotating bar 32 and slides along inclined-plane 324, rotation bar 32 is caused to rotate relative to main body 31, spring 34 is compressed and makes compression zone 322 tilt, and abuts with the first force application part in electrophotographic image forming.Now under the effect of spring 44, axle 41 and gear part 42 is driven to remain engaged with.At drive division 22 and the driving force acceptance division 4 of photosensitive drums respectively from when receiving driving force in electrophotographic image forming, drive division 22 drives photosensitive drums to rotate.The driving axle 41 rotation driven gear portion 42 of driving force acceptance division 4 rotates, it is further driven to the developing roller gear 11 that engages with gear 421,422 and powder feeding roller gear 12 rotates, and then developer roll and powder feeding roller also rotate, constantly to photosensitive drums supply toner, handle box carries out normal image processing work.
When Figure 11 and Figure 12 illustrates cleaning photosensitive drums, the pressurized assembly of handle box and the state of driving force acceptance division.As shown in figure 11, the extension 331 abutting bar 33 abuts with the second force application part of electrophotographic image forming, the compression zone 322 of tilting rotating bar 32 abuts with the first force application part of electrophotographic image forming, and by being perpendicular to axial pressure and moving to the first force application part, rotating bar 32 drives main body 31 to move, spring 35 is compressed, and the elastic abutting bar 33 deforms and makes the overall length of abutting bar 33 diminish, and spring 36 is also compressed simultaneously.The movement of main body 31 makes inclined-plane 311 move along pressure direction, and the inclined-plane 432 of shank 43 slides along the inclined-plane 311 of main body 31 and makes shank 43 move towards the direction of developing frame 1 vertically, thus driving driving axle 41 to move towards developing frame 1.Spring 44 is compressed, and drives the projection 411 on axle 41 to deviate from the groove 423 of gear 422, drives axle 41 to be disengaged with gear part 42.Now, even if driving axle 41 still can receive driving force in electrophotographic image forming and rotate, also cannot rotate in driven gear portion 42, and then developing roller gear 11 and powder feeding roller gear 12 are also all without rotation.When the drive division 22 of photosensitive drums receives driving force in electrophotographic image forming and rotates, the cleaning of photosensitive drums can be realized.
After cleaning completes, first force application part recalls the pressure applying the compression zone 322 to tumbler 32, namely tumbler 32 and main body 31 are back to original position under the partial pressure of spring 35, abut the elastic elastic return of bar 33, spring 36 also returns back to raw footage, the total length abutting bar 33 becomes greatly raw footage, and abutting part 332 keeps abutting with the inclined-plane 324 rotating bar 32.Along with setting back of main body 31 is put, under the partial pressure of spring 44, the inclined-plane 432 of shank 43 slides along the inclined-plane 311 of main body 31 and makes shank 43 be axially distant from the direction of developing frame 1 and move, thus driving axle 41 to move away from developing frame 1, projection 411 moves to groove 423, driving axle 41 to recover to engage with gear part 42, handle box recovers to state when working in electrophotographic image forming.When driving axle 41 from reception driving force in electrophotographic image forming, drive axle 41 driven gear 421,422 to rotate, and then drive developer roll and powder feeding roller to rotate, can to photosensitive drums supply toner.
When handle box is from taking-up in electrophotographic image forming, second force application part of abutting part 332 and electrophotographic image forming departs from, under the partial pressure of spring 34, tumbler 32 turns to the position of compression zone 322 and handle box either flush from the position that compression zone 322 tilts, inclined-plane 324 promotes the abutting part 332 abutting bar 33 to move, thus promotion compresses bar 33 and moves along the guiding mechanism of main body 31, pressurized assembly 3 recovers the position to Fig. 9, now handle box can be taken out in electrophotographic image forming.
In the embodiment above, the example as bias piece is all spring, and in other embodiments, bias piece can be other types, such as shell fragment etc., as long as can realize needing the parts receiving biasing force to bias.
It is understandable that; it is more than the preferred embodiments of the present invention; the present invention includes but not limited to this; any method driving axle to depart from when cleaning photosensitive drums with gear part, driving when not cleaning axle to engage with gear part that can realize driving force acceptance division, all can realize the purpose of the present invention and be included in protection scope of the present invention.
Claims (10)
1. handle box, including:
Photosensitive drums, it can be formed electrostatic latent image, and one end of described photosensitive drums is provided with the drive division driving described photosensitive drums to rotate；
Drum frame, is pivotably supported described photosensitive drums；
Developer roll, the described electrostatic latent image in described photosensitive drums of developing；
Developing frame, is pivotably supported described developer roll, and holds useful in the carbon dust of development in described developing frame；
Driving force acceptance division, is arranged on one end of described developing frame, is used for receiving driving force and driving described developer roll to rotate, including the driving axle being coaxially disposed and be bonded with each other and gear part；
It is characterized in that:
Described developing frame is fixing with described drum frame to be connected, described developing frame is provided with pressurized assembly, when receiving pressure, being subjected to displacement at least partially of described pressurized assembly, and make described driving axle be disengaged with described gear part, when described pressure is removed, described at least some of return-to-home position, described driving axle recovers to engage with described gear part.
2. handle box according to claim 1, it is characterised in that:
Described driving axle is cased with radially projecting shank, described be subjected to displacement at least partially time, force described shank displacement and then make the direction that described driving axial described developing frame move.
3. handle box according to claim 2, it is characterised in that:
Described at least some of on be provided with inclined plane, described pressure perpendicular is in axially, and described at least some of when described pressure bottom offset, described shank slides along described inclined plane and is axially moveable.
4. handle box according to claim 3, it is characterised in that:
Being provided with protuberance on described driving axle, described gear part is provided with the groove coordinated with described protuberance, when described driving axle engages with described gear part, described protuberance is contained in described groove.
5. handle box according to claim 4, it is characterised in that:
Described driving axle is provided with and limits the boss that described shank moves axially.
6. the handle box according to any one of claim 1 to 5, it is characterised in that:
Described developing frame is provided with the first bias piece, applies the biasing force making described driving axle be in the position engaged with described gear part to described driving axle.
7. the handle box according to any one of claim 1 to 5, it is characterised in that:
Described developing frame is provided with and forces described the second bias piece moved to described original position at least partially.
8. the handle box according to any one of claim 1 to 5, it is characterised in that:
Described pressurized assembly includes rotating bar and compressing bar, when described handle box is mounted to electrophotographic image forming, described one end compressing bar is compressed and is moved, the other end abuts with described rotation bar and makes described rotation bar to rotate, thus described rotation bar turns to the position of tilting from the position with the either flush of described handle box.
9. handle box according to claim 8, it is characterised in that:
Described pressurized assembly is provided with the 3rd bias piece of the position of the either flush forcing described rotation bar to be positioned at described handle box.
10. handle box according to claim 9, it is characterised in that:
Described compressing is provided with elastic on bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703061.XA CN103698993B (en) | 2013-12-18 | 2013-12-18 | Handle box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310703061.XA CN103698993B (en) | 2013-12-18 | 2013-12-18 | Handle box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103698993A CN103698993A (en) | 2014-04-02 |
| CN103698993B true CN103698993B (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310703061.XA Active CN103698993B (en) | 2013-12-18 | 2013-12-18 | Handle box |
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| CN (1) | CN103698993B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6513153B2 (en) * | 2012-09-07 | 2019-05-15 | キヤノン株式会社 | Process cartridge |
| CN103970002B (en) * | 2014-05-23 | 2018-02-16 | 珠海天威飞马打印耗材有限公司 | Handle box and its renovation process |
| CN106325023B (en) * | 2015-06-19 | 2023-09-08 | 江西镭博钛电子科技有限公司 | Developing box |
| CN106325022B (en) * | 2015-06-19 | 2023-10-27 | 江西镭博钛电子科技有限公司 | Developing box |
| WO2018103393A1 (en) * | 2016-12-09 | 2018-06-14 | 珠海市汇威打印机耗材有限公司 | Process cartridge |
| CN108398871A (en) * | 2018-04-23 | 2018-08-14 | 珠海联合天润打印耗材有限公司 | Handle box |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100334107B1 (en) * | 1999-10-01 | 2002-05-02 | 윤종용 | The developer integrated with hopper of image forming apparatus |
| KR101579738B1 (en) * | 2010-12-23 | 2016-01-05 | 삼성전자주식회사 | Developing device and image forming apparatus using the same |
| CN203299517U (en) * | 2013-06-06 | 2013-11-20 | 江西镭博钛电子科技有限公司 | Developing box |
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2013
- 2013-12-18 CN CN201310703061.XA patent/CN103698993B/en active Active
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| CN103698993A (en) | 2014-04-02 |
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