CN108153127A - Developing cell, handle box and electronic imaging apparatus - Google Patents

Developing cell, handle box and electronic imaging apparatus Download PDF

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Publication number
CN108153127A
CN108153127A CN201711462484.1A CN201711462484A CN108153127A CN 108153127 A CN108153127 A CN 108153127A CN 201711462484 A CN201711462484 A CN 201711462484A CN 108153127 A CN108153127 A CN 108153127A
Authority
CN
China
Prior art keywords
housing
photosensitive
developing cell
development
rotating shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711462484.1A
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Chinese (zh)
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CN108153127B (en
Inventor
龚海飞
曹玉兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Pantum Electronics Co Ltd
Original Assignee
Zhuhai Pantum Electronics Co Ltd
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Filing date
Publication date
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Priority to CN201711462484.1A priority Critical patent/CN108153127B/en
Publication of CN108153127A publication Critical patent/CN108153127A/en
Application granted granted Critical
Publication of CN108153127B publication Critical patent/CN108153127B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1642Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
    • G03G21/1647Mechanical connection means
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1661Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
    • G03G21/1671Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the photosensitive element
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1661Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
    • G03G21/1676Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the developer unit
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1803Arrangements or disposition of the complete process cartridge or parts thereof
    • G03G21/1814Details of parts of process cartridge, e.g. for charging, transfer, cleaning, developing

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

The present invention provides a kind of developing cell, handle box and electronic imaging apparatus and is related to image-forming techniques.The present invention urgent pushes away component by setting with what the housing into rotation that develops was connect, the abutting part for compeling to push away in component is abutted with photosensitive housing, so, while ensureing that photosensitive drums are in close contact with developer roll or are close to each other, compel to push away the installation space that component also has more and is located at except development housing, so as to greatly reduce the occupancy to the space of developing chamber in development housing, and the space for the powder recovery bin that gives up in photosensitive housing need not be occupied, so as to greatly reduce the capacity loss of developing chamber and useless powder recovery bin.

Description

Developing cell, handle box and electronic imaging apparatus
Technical field
The present invention relates to a kind of image-forming techniques more particularly to developing cell, handle box and electronic imaging apparatus.
Background technology
Electronic imaging apparatus such as laser printer, duplicator, printing machine etc. are that one kind is formed on image medium such as paper The equipment of image, generally comprises:Image forming apparatus body and handle box, handle box are removably mounted in image forming apparatus body; Image forming apparatus body is used to obtain print data and is converted into corresponding laser signal;Handle box is used to be carried out according to laser signal Development and imaging.
To realize development and imaging, handle box generally includes:Developing cell and photosensitive unit, developing cell and photosensitive unit It is rotatablely connected by shaft.Developing cell has specifically included development housing, and development housing is towards setting on front side of image forming apparatus body Developer roll is equipped with, the rear side setting developing chamber for the housing that develops, developing chamber is used to provide carbon dust for developer roll;Photosensitive unit specifically wraps Photosensitive housing is included, photosensitive drums are provided on front side of photosensitive housing, useless powder recovery bin is provided on rear side of photosensitive housing, powder recycling of giving up Storehouse is used to recycle the carbon dust for having neither part nor lot in imaging in photosensitive drums.
In specific imaging process, photosensitive drums can be formed according to the laser signal of image forming apparatus body on its surface Corresponding charge latent image;When photosensitive drums rotate and pass through developer roll, the latent image part of photosensitive drum surface is inhaled from developing roller surface Attached carbon dust forms carbon dust real image;When the carbon dust real image that photosensitive drums carry turns to paper corresponding position, by electrostatic treatment Carbon dust will be adsorbed onto paper surface by paper, so as to form image on paper.
In the prior art, in order to ensure the good contact of photosensitive drums and developer roll, image quality is improved, in development housing Urgent pushing mechanism such as spring is provided between the rear side of rear side and photosensitive housing;Under the action of the spring, develop housing rear side with The rear side of photosensitive housing can move opposite to each other;Meanwhile under the action of shaft, the front side for the housing that develops and the front side of photosensitive housing It moves toward one another and offsets, in this way, the developer roll on front side of development housing can contact or close with the photosensitive drums on front side of photosensitive housing.
However, in existing handle box, setting is required on development housing and photosensitive housing for installing urgent pushing mechanism Mounting structure, the structure of cause to develop housing and photosensitive housing is more complicated, reduces going out for develop housing and photosensitive housing Rate is imitated, reduces the production efficiency of handle box.Also, due to being needed between the rear side of development housing and the rear side of photosensitive housing Certain installation space installation spring is reserved, this has resulted in useless on rear side of developing chamber or photosensitive housing on rear side of development housing The capacity loss of powder recovery bin, when device needs miniaturization, which seems especially prominent.
Invention content
For drawbacks described above of the prior art, the present invention provides a kind of developing cell, handle box and electronic imaging apparatus, It can solve at least one above problem.
One aspect of the present invention provides a kind of developing cell, is detachably mounted on photosensitive unit, and the development is single First that first rotating shaft is equipped between the photosensitive unit and is rotatably coupled by first rotating shaft, the developing cell includes: Development housing and the developer roll being pivotally supported on the development housing, the photosensitive unit include:Photosensitive housing with And it is rotatably supported at the photosensitive drums on the photosensitive housing;It is additionally provided on the development housing and the development housing into rotation The urgent of connection pushes away component, it is described compel to push away component include pressurization part and abutting part, the abutting part abuts simultaneously with the photosensitive housing The developing cell is promoted to be relatively rotated with the photosensitive unit around the first rotating shaft in urgent push of the pressurization part, with institute It is close to each other or abut to state photosensitive drums and the developer roll.
Optionally, it is described compel to push away component be located at opposite side of the developer roll relative to the first rotating shaft.
Optionally, the abutting part act on the direction of the active force on the photosensitive housing perpendicular to the abutting part with The line between position and the first rotating shaft on the photosensitive housing.
Optionally, it is described compel to push away be additionally provided with light entrance port between component and the development housing, the light is incident Mouth is used to that incident light to be made to be incident on the photosensitive drums.
Optionally, it is described to compel to push away component and further include rotating part connect with the development housing into rotation, the abutting part and The rotating part is fixedly connected.
Optionally, the rotating part is handle body, and the handle body protrudes from the development housing;The abutting part For support arm, one end of the support arm is fixedly connected with the handle body, the other end of the support arm with it is described photosensitive Housing abuts.
Optionally, the development housing has the driving end for being provided with transmission gear and end is opposite sets with the driving The anti-drive end put;The driving end is respectively arranged with the pressurization part, and be arranged on the driving end with the anti-drive end Pressurization part provide urgent thrust be more than be arranged on the anti-drive end pressurization part provide urgent thrust.
Optionally, the pressurization part is elastic component.
Optionally, the elastic component is torsional spring, and the torsional spring is connect with the development housing into rotation by torsional spring shaft, turned round First arm of spring is fixedly connected with the handle body, and the second arm of torsional spring is connected on the development housing.
Optionally, the both ends of the handle body are respectively arranged with fixed column, and the first arm of the torsional spring is fixed at In the fixed column.
Optionally, the fixed column is provided with away from one end of the handle body along the axial direction perpendicular to the fixed column The flange of direction extension is moved with limiting the torsional spring along the direction away from the handle body.
Optionally, the elastic component is compression spring, and one end of the compression spring abuts the development housing, the compression spring it is another End abuts the support arm.
Optionally, the development housing further includes development side cover, and sliding slot face is provided with and positioned at institute on the development side cover The first axis hole on the downside of sliding slot face is stated, is provided with first rotating shaft on the photosensitive housing, the first rotating shaft is along the sliding slot face It can be telescopically mounted to first axis hole.
Optionally, the abutting part is greater than or equal to the first rotating shaft edge in the stroke that the pressurization part compels to push away under effect Sliding slot face tail end is the distance between to first axis hole.
Another aspect of the present invention provides a kind of handle box, including:The developing cell and photosensitive unit that can mutually dismount, institute It states and first rotating shaft is equipped between developing cell and the photosensitive unit and is rotatably coupled by the first rotating shaft;The sense Light unit includes:Photosensitive housing and the photosensitive drums being rotatably supported on the photosensitive housing;The developing cell is aforementioned Any one of them developing cell.
Another aspect of the present invention provides a kind of electronic imaging apparatus, including:Image forming apparatus body and handle box, the place Reason box includes the developing cell and photosensitive unit that can mutually dismount, and the handle box is removably mounted on the imaging device master In body, the developing cell is aforementioned any one of them developing cell.
Developing cell provided by the invention, handle box and electronic imaging apparatus are connect by setting with the housing into rotation that develops It is urgent push away component, the abutting part for compeling to push away in component is abutted with photosensitive housing, in this way, turning compeling to push away component relative to development housing In dynamic process, pressurization part can compel push against socket part relative to development housing into rotation, with by abutting part relative to development housing Rotation developing cell and the photosensitive unit is promoted to be relatively rotated around first rotating shaft so that photosensitive drums press to developer roll simultaneously It is in close contact or close to each other, ensures good developing performance.
Meanwhile by that will compel to push away component and be rotatably arranged on to develop on housing, compel to push away component with more and positioned at development Installation space except housing so as to greatly reduce the occupancy to the space of developing chamber in development housing, and need not occupy photosensitive The space of useless powder recovery bin in housing, so as to greatly reduce the capacity loss of developing chamber and useless powder recovery bin.
Description of the drawings
Fig. 1 is the structure diagram for the electronic imaging apparatus for including the developing cell that following embodiments provide;
Fig. 2 is the structure diagram for the handle box for including the developing cell that the present embodiment one provides;
Fig. 3 is the structure diagram of the photosensitive unit of developing cell assembling provided with the present embodiment one;
Fig. 4 is the structure diagram of developing cell that the present embodiment one provides;
Fig. 5 is put into close-up schematic view for Fig. 4;
Fig. 6 is the developing cell that provides of the present embodiment one and the unassembled preceding sectional view in place of photosensitive unit;
Fig. 7 is the sectional view when developing cell that the present embodiment one provides assembles in place with photosensitive unit;
Fig. 8 is the schematic diagram of the active force between abutting part and photosensitive unit in the developing cell that the present embodiment one provides;
Fig. 9 is to compel to push away the scheme of installation of component in the developing cell that the present embodiment one provides;
Figure 10 is the developing cell that provides of the present embodiment one and the unassembled preceding structure diagram in place of photosensitive unit;
Figure 11 is the structure diagram when developing cell that the present embodiment one provides assembles in place with photosensitive unit;
Figure 12 is the cooperation schematic diagram one of the corresponding side cover that the present embodiment one provides and first rotating shaft;
Figure 13 is the cooperation schematic diagram two of the corresponding side cover that the present embodiment one provides and first rotating shaft;
Figure 14 is sectional views of the Figure 13 at C-C;
Figure 15 is the structure diagram of the developing cell that the present embodiment two provides and photosensitive unit.
Reference sign:
1- developing cells;11- development housings;11a- development side covers;111- developer rolls;112- powder feeding rollers;113- developing chambers; 114- agitating devices;The first axis holes of 115-;116- sliding slots;116a- sliding slots face;117- compressed springs;118- guide grooves;119- cores Piece;120- transmission gears;
13- compels to push away component;131- pressurization parts, 1311- torsional springs;The first arms of 1311a-;The second arms of 1311b-;1312- elasticity Part;132- abutting parts;1321- support arms;133- handle bodies;1331- torsional spring shafts;The second shafts of 1332-;1333- is fixed Column;1334- flanges;
2- photosensitive units;The photosensitive housings of 21-;211- photosensitive drums;212- gives up powder recovery bin;213- charging rollers;214- first Shaft;215- leads;
3- image forming apparatus bodies;31- exposing units;32- is in paper pallet;33- paper feeding units;34- fixation units;35- is arranged Paper unit;36- paper discharge paper discs.
Specific embodiment
Fig. 1 is the structure diagram for the electronic imaging apparatus for including the developing cell that following embodiments provide.Please refer to figure 1, electronic imaging apparatus generally comprises:Image forming apparatus body 3 and handle box, the handle box include developing cell 1 and photosensitive list Member 2, the handle box is removably mounted in the image forming apparatus body 3.
Image forming apparatus body 3 specifically includes:Exposing unit 31, load paper pallet 32, paper feeding unit 33, fixation unit 34, row Paper unit 35, discharge tray 36;Developing cell 1 and photosensitive unit 2 form handle box and are removably mounted on after assembling In image forming apparatus body 3.In photosensitive unit 2 there are photosensitive drums, there is in developing cell 1 developer roll and chip, chip can be with It is connect with the processor communication in image forming apparatus body 3.
By electronic imaging apparatus for for printer, in specific work process, image forming apparatus body 3 is from terminals such as computers Upper acquisition type information simultaneously generates bitmap page to be printed, is then converted into laser pulse signal and is sent to exposing unit 31, laser beam will be strafed photosensitive drum surface by exposing unit 31 according to the laser signal, so as to form charge latent image in photosensitive drums; When photosensitive drums rotate and pass through developer roll, it is real to form carbon dust from the adsorption carbon dust of developer roll for the latent image part of photosensitive drums Picture;Meanwhile the paper on load paper pallet 32 enters under the action of paper feeding unit 33 in transfer passage, when the carbon dust of photosensitive drums is real When picture turns to paper corresponding position, carbon dust will be adsorbed onto paper surface by the paper by electrostatic treatment, so as in paper Upper formation image.
Generally, in order to stablize the image on paper, in output paper, paper will also be added by fixation unit 34 Heat, so that the ingredients such as resin in carbon dust dissolve rapidly at high temperature, so as to firmly adsorb carbon dust in paper surface;By fixed Shadow unit 34 exports under the action of paper feeder unit 35 from electronic imaging apparatus, and is carried on discharge tray 36, and completion is beaten Print work.
It is described in detail below to the structure of developing cell 1, function and with the cooperation of photosensitive unit 2.
Embodiment one
Fig. 2 is the structure diagram for the handle box for including the developing cell that the present embodiment one provides;Fig. 3 is and the present embodiment One structure diagram of the photosensitive unit of developing cell assembling provided;Fig. 4 is the knot of developing cell that the present embodiment one provides Structure schematic diagram;Fig. 5 is put into close-up schematic view for Fig. 4.
Fig. 6 is the developing cell that provides of the present embodiment one and the unassembled preceding sectional view in place of photosensitive unit;Fig. 7 is this reality Apply the sectional view when developing cell that example one provides assembles in place with photosensitive unit;Fig. 8 is the development list that the present embodiment one provides The schematic diagram of active force in member between abutting part and photosensitive unit.
Fig. 9 is to compel to push away the scheme of installation of component in the developing cell that the present embodiment one provides;Figure 10 is the present embodiment one The unassembled preceding structure diagram in place of the developing cell of offer and photosensitive unit;Figure 11 is the development list that the present embodiment one provides Structure diagram when member is assembled in place with photosensitive unit.
Fig. 2-11 are please referred to, the present embodiment provides a kind of developing cells 1, are detachably mounted on photosensitive unit 2, described First rotating shaft 214 is equipped between developing cell 1 and the photosensitive unit 2 and is rotatablely connected by first rotating shaft 214, the development Unit 1 includes:Development housing 11 and the developer roll 111 being pivotally supported on the development housing 11, the photosensitive list Member 2 includes:Photosensitive housing 21 and the photosensitive drums 211 being rotatably supported on the photosensitive housing 21;The development housing 11 On be additionally provided with the development housing 11 be rotatablely connected it is urgent push away component 13, it is described compel to push away component 13 include 131 He of pressurization part Abutting part 132, the abutting part 132 abutted with the photosensitive housing 21 and the pressurization part 131 it is urgent push promote it is described Developing cell 1 is relatively rotated with the photosensitive unit 2 around first rotating shaft 214, so that the photosensitive drums 211 and the developer roll 111 close to each other or abuttings.
Development housing 11 specifically includes:Develop side cover 11a, development head cover and development bottom cover.Two development side cover 11a difference The both ends of developer roll 111 in an axial direction are arranged on, development head cover and development bottom cover are oppositely arranged along the upper and lower directions of developer roll 111; The left and right ends of development bottom cover are connected respectively with two development side cover 11a, the rear end for the bottom cover that develops and the rear end of development head cover It is connected, the left and right ends of the head cover that develops are connected respectively with two development side cover 11a, development side cover 11a, development head cover and aobvious The developing chamber 113 with opening is collectively formed in shadow bottom cover, and developing chamber 113 is for accommodating developer, one kind as the developer Specific embodiment can be one pack system carbon dust or bi-component carbon dust.
Developer roll 111 is specifically contained in the opening of developing chamber 113, and the both ends of developer roll 111 can be revolved respectively by bearing It is supported on turning on two development side cover 11a.Developing cell 1 further include powder feeding roller 112, agitating device 114 and for imaging The chip 119 that apparatus main body 3 communicates to connect;Powder feeding roller 112 is arranged on developer roll 111 towards the side of developing chamber 113, and powder feeding The both ends of roller 112 are pivotally supported at by bearing on two development side cover 11a respectively;Agitating device 114 may be provided at aobvious In shadow storehouse 113, for the developer in developing chamber 113 to be transported at powder feeding roller 112.
Photosensitive housing 21 specifically includes:Photosensitive side cover, photosensitive head cover and photosensitive bottom cover, photosensitive side cover are two, photosensitive side Lid, photosensitive head cover and photosensitive bottom cover surround the useless powder recovery bin 212 with opening jointly, give up powder recovery bin 212 for recycling sense The carbon dust of imaging is had neither part nor lot on light drum 211.Photosensitive drums 211 are specifically located at the opening of photosensitive housing 21, and the two of photosensitive drums 211 End is pivotally supported at by bearing on two photosensitive side covers respectively.Photosensitive unit 2 further includes charging roller 213, charging roller 213 Both ends are pivotally supported at by bearing on two photosensitive side covers respectively, and charging roller 213 presses to photosensitive drums 211 by spring Surface.
Wherein, the first axis hole 115 is provided on the development side cover 11a, first turn is provided on the photosensitive housing 21 Axis 214, the first rotating shaft 214 are installed in rotation in first axis hole 115.When developing cell 1 and photosensitive unit 2 fill When preparing, as contact type developing mode, developer roll 111 is in contact condition with photosensitive drums 211;As great-jump-forward development side Formula, developer roll 111 are in photosensitive drums 211 closely close to state, that is to say, that the present invention is not intended to limit it and is shown for contact Shadow or great-jump-forward development.It is of course also possible to which first rotating shaft 214 is arranged on development housing 11, the first axis hole 115 is arranged on On photosensitive housing 21, as long as the rotation connection between developing cell 1 and photosensitive unit 2 can be realized.The present embodiment and under Embodiment is stated so that the first axis hole 115 is arranged on development housing 11 as an example, the structure of developing cell 1 is described in detail, under Text also in a manner of contact type developing for illustrate.
As illustrated in figs. 6-11, compel to push away component 13 and be specifically located at the side that first rotating shaft 214 deviates from developer roll 111, that is, compel It pushes away component 13 and is located at opposite side of the developer roll 111 relative to first rotating shaft 214, compel to push away by the rotation for compeling to push away component 13 aobvious Shadow roller 111 and photosensitive drums 21 it is close to each other or abut.Compel to push away component 13 and specifically include:Abutting part 132 and rotating part;Abutting part 132 are rotatablely connected with development housing 11, and abutting part 132 is also abutted with photosensitive housing 21.When abutting part 132 under external force, Relative to development housing 11 along the direction B towards development housing 11 namely when rotating clockwise, pressurization part 131 is pressurized and stores one Fixed potential energy;When cancelling external force, under the potential energy effect of pressurization part 131, pressurization part 131 drives abutting part 132 relative to aobvious Shadow housing 11 is along the direction A far from development housing 11 namely rotates counterclockwise, and abutting part 132 is upward while rotating counterclockwise Photosensitive housing 21 is lifted, photosensitive housing 21 is rotated relative to development housing 11 along first rotating shaft 214, meanwhile, positioned at first rotating shaft 214 photosensitive drums 211 away from the side of abutting part 132 press to the surface of developer roll 111, and photosensitive drums 211 are close with developer roll 111 Contact.Wherein, abutting part 132 can stretch out development housing 11 along the direction far from first rotating shaft 214, in order to abutting part 132 apply external force.
Compel to push away and light entrance port 100, the light L that exposing unit 31 emits are additionally provided between component 13 and development housing 11 It is reached in photosensitive drums 211 by above-mentioned light entrance port 100.Specifically, light L by abutting part 132 and development housing 11 it Between gap.In the present embodiment, light L passes through from the gap for compeling to push away component 13 between the housing 11 that develops, and does not need to individually set Photometric line L reaches the channel of photosensitive drums 211 so that developing cell overall dimensions are reduced, and reduce cost.
As shown in figure 8, in order to reduce the urgent thrust of pressurization part 131 to developing cell 1 and the assembling process of photosensitive unit 2 Influence, the abutting part 132 act on the direction F of the active force on the photosensitive housing 21 perpendicular to the abutting part 132 with The line L between position and the first rotating shaft 214 on the photosensitive housing 21, in this way, abutting part 132 act on it is described Active force on photosensitive housing 21 is only used for that photosensitive housing 21 is promoted to rotate relative to developing cell 1, without influencing the One shaft 214 towards the first axis hole 115 movement, so as to reduce the cooperation difficulty of 214 and first axis hole 115 of first rotating shaft, Reduce the assembly difficulty of developing cell 1 and photosensitive unit 2.
Rotating part can also be included by compeling to push away component 13, and rotating part be specifically rotatablely connected with development housing 11, and rotating part can be with It is fixedly connected or is wholely set with abutting part 132, abutting can be driven when rotating part is rotated relative to development housing 11 Portion 132 rotates together.Rotating part can also upwardly extend and stretch out the top of development housing 11, in order to which user applies rotating part Power;At this point, there can be certain angle between rotating part and abutting part 132.
Compel to push away component 13 can be it is multiple, it is multiple to compel to push away component 13 and set independently of each other, at this point, pressurization part 131 It is multiple.By pressurization part 131 there are two for:Two pressurization parts 131 are set respectively close to two end symmetrics of development housing 11 It puts;There is the driving end for being provided with transmission gear 120 with the housing 11 that develops, then it is non-driven to be oppositely arranged with the driving end End, in this way, driving end setting of the one of pressurization part 131 close to development housing 11, another pressurization part 131 is close to development shell The anti-drive end setting of body 11.Wherein, the urgent thrust provided close to the pressurization part 131 of the driving end setting of development housing 11 is more than The urgent thrust provided close to the pressurization part 131 of the driving end setting of development housing 11, to overcome in driving end Meshing Process of Spur Gear The influence of radial load is further ensured that photosensitive drums 211 are in close contact with developer roll 111.
Certainly, the quantity of pressurization part 131 is not limited to this;Such as:Pressurization part 131 can also be 3 or more, two of which For pressurization part 131 respectively close to two end sets of development housing 11, remaining pressurization part 131 is then arranged on two pressurization parts Between 131.
In general, developing cell 1 is taken and placed for the ease of client, developing cell 1 is typically provided with handle, is used on handle More than one rib can be generally provided in the part held for user, to increase the friction between the hand of user and handle Power more reliably holds convenient for user.
In order to be further simplified the structure of developing cell 1, simplify the structure of development housing 11, handle and compel to push away component 13 can To merge setting.Specifically, the handle body 133 in handle is to compel to push away the rotating part in component 13, the support arm in handle 1321 be the abutting part 132 for compeling to push away in component 13.Wherein, the both ends of handle body 133 pass through the second shaft 1332 and development shell Body 11 is rotatablely connected, and the side of support arm 1321 is fixedly connected with handle body 133, the opposite side of support arm 1321 and photosensitive shell Body 21 abuts.
Wherein, the handle body 133 has towards the driving end of transmission gear 120 and opposite with the driving end The anti-drive end of setting;The driving end is respectively arranged with the pressurization part 131, and be arranged on the drive with the anti-drive end The urgent thrust that the pressurization part 131 of moved end provides, which is more than, is arranged on the urgent thrust that the pressurization part 131 of the anti-drive end provides.
In the present embodiment, the specially elastic component, such as torsional spring 1311 of pressurization part 131.Relative to the structure of development housing 11 For, the structure of handle body 133 is simpler, therefore, can the first arm 1311a of torsional spring 1311 be fixed on handle body On 133, meanwhile, it can will be also disposed at handle body 133, such as second turn for being arranged the torsional spring shaft 1331 of torsional spring 1311 Axis 1332 can have the function of torsional spring shaft 1331 simultaneously, can also be set in torsional spring 1311 in second shaft 1332, To simplify the structure of handle body 133.Second arm 1311b of torsional spring 1311 is then connected on the development housing 11.
The both ends of handle body 133 can be respectively arranged with fixed column 1333, and fixed column 1333 is mainly used for fixed torsional spring 1311 the first arm 1311a.In order to improve the installation reliability of torsional spring 1311, fluted, torsion can be opened up in fixed column 1333 First arm 1311a of spring 1311 is fastened in groove, to limit the torsional spring 1311 along away from the direction of the handle body 133 It is mobile, torsional spring 1311 is avoided to compel to push away failure caused by being detached from handle body 133, ensures to improve and compels to push away the reliability of component 13.
Prolong alternatively, can also be provided in fixed column 1333 away from one end of handle body 133 along 1333 radial direction of fixed column The flange 1334 stretched, flange 1334 are specifically as follows the closed loop of the circumferentially extending along fixed column 1333, and flange 1334 can also be Along the circumferentially spaced block structure of fixed column 1333, the first arm 1311a of torsional spring 1311 can be located at flange at this time Between 1334 and handle body 133, moved, avoided along away from the direction of the handle body 133 with limiting the torsional spring 1311 Torsional spring 1311 compels to push away failure caused by being detached from handle body 133, simultaneously, additionally it is possible to improve the intensity of fixed column 1333, further Raising is compeled to push away the reliability of component 13.
Figure 12 is the cooperation schematic diagram one of the corresponding side cover that the present embodiment one provides and first rotating shaft;Figure 13 is the present embodiment The cooperation schematic diagram two of the one corresponding side cover provided and first rotating shaft;Figure 14 is sectional views of the Figure 13 at C-C.
As shown in figs. 12-14, the side of development side cover 11a towards the developing chamber 113 is provided with sliding slot 116, sliding slot 116 It is mainly used for that first rotating shaft 214 is guided to move towards the first axis hole 115.Sliding slot 116 specifically can be V-shaped, and from top to bottom, sliding Slot 116 is gradually reduced along the width of the width direction of Delevoping cartridge, in order to which first rotating shaft 214 more smoothly enters the first axis hole 115.Wherein, the width of slot along the width direction of Delevoping cartridge needs the diameter more than first rotating shaft 214, so that first rotating shaft 214 It can successfully be slided in sliding slot 116.
The surface that sliding slot 116 is formed on development side cover 11a is sliding slot face 116a, and sliding slot face 116a is located at the first axis hole 115 Top, the first rotating shaft 214 can be telescopically mounted to first axis hole 115 along the sliding slot face 116a.Specifically, One shaft 214 is connect by compressed spring 117 with photosensitive housing 21;When starting to assemble photosensitive unit 2 and developing cell 1, First rotating shaft 214 is located in sliding slot 116, and first rotating shaft 214 compresses compressed spring 117 along the direction far from development side cover 11a, Under external force, first rotating shaft 214 is moved along sliding slot face 116a and towards the first axis hole 115, until first rotating shaft 214 with When first axis hole 115 is aligned, under the compression potential energy of compressed spring 117, compressed spring 117 is by first rotating shaft 214 towards development One end of side cover 11a is pushed into the first axis hole 115, realizes the installation to first rotating shaft 214.
As shown in figs. 10-11, wherein, lead 215 is additionally provided on photosensitive housing 21, is also set up on development side cover 11a There is guide groove 118, lead 215 and the cooperation of guide groove 118 can also guide peace of the photosensitive unit 2 relative to developing cell 1 Direction is filled, so as to convenient for the assembling of photosensitive unit 2 and developing cell 1.
In addition, the abutting part 132 is greater than or equal to described first turn in the stroke that the pressurization part 131 compels to push away under effect Axis 214 is along the sliding slot face 116a tail ends to the distance between first axis hole 115 H, in order to developing cell 1 and photosensitive list The dismounting of member 2.Specifically, when developing cell 1 and photosensitive unit 2 are dismantled relatively, under the effect of external force, first rotating shaft 214 deviate from from the first axis hole 115, such as:First rotating shaft 214 from the first axis hole 115 is pulled out or ejected by external force; In support arm 1321 under the active force of photosensitive housing 21, meanwhile, the urgent implementation journey of abutting part 132 is greater than or equal to first rotating shaft 214 along sliding slot face 116a tail ends to the distance between the first axis hole 115 H (as shown in figure 14), i.e., first rotating shaft 214 can automatically from The tail end of sliding slot face 116a skids off sliding slot face upwards, difficult so as to substantially reduce developing cell 1 and the dismounting of photosensitive unit 2 Degree.
Wherein it is possible to what is understood is:The starting point of the urgent implementation journey of abutting part 132 is that first rotating shaft 214 is located at first axle When in hole 215, abutting part 132 relative to development housing 11 position;The terminating point of the urgent implementation journey of abutting part 132 is, When first rotating shaft 214 is moved to sliding slot face 116a or skids off sliding slot face 116a upwards, abutting part 132 is relative to development housing 11 Position.Compel implementation journey to be specifically as follows:Abutting part 132 moves to end with the part that photosensitive housing 21 contacts by starting point The length of the movement locus of stop.
Developing cell 1 provided in this embodiment pushes away component 13 with the urgent of the development rotation connection of housing 11 by setting, will compel The abutting part 132 pushed away in component 13 is abutted with photosensitive housing 21, in this way, compeling to push away what component 13 was rotated relative to development housing 11 In the process, pressurization part 131 can compel to push against socket part 132 rotates relative to development housing 11, with by abutting part 132 relative to aobvious The rotation of shadow housing 11 promotes developing cell 1 to be relatively rotated with the photosensitive unit 2 around first rotating shaft 214, so that photosensitive Drum 211 presses to developer roll 111 and is in close contact, and ensures that developer roll 111 can ensure good with 211 good contact of photosensitive drums Developing performance.
Meanwhile by that will compel to push away component 13 and be rotatably arranged on to develop on housing 11, compel to push away component 13 with more and position Installation space except the housing 11 that develops, so as to greatly reduce the occupancy to the space of developing chamber 113 in development housing 11, and The space for the powder recovery bin 212 that gives up in photosensitive housing 21 need not be occupied, so as to greatly reduce developing chamber 113 and useless powder recovery bin 212 capacity loss.
Embodiment two
Figure 15 is the structure diagram of the developing cell that the present embodiment two provides and photosensitive unit.
Figure 15 is please referred to, the present embodiment provides a kind of developing cell 1, developing cell 1 provided in this embodiment and embodiment One the difference lies in the developing cell 1 of the present embodiment, elastic component is compression spring 1312, and compression spring 1312 is arranged on support arm 1321 lower sections, compression spring 1312 are specifically supported between the lower surface for being located at support arm 1321 and development housing 11.
Certainly, elastic component may be the elastic bumps extended downwardly by the bottom of support arm 1321, elastic bumps also with Development housing 11 abuts.The present embodiment is by elastic component to be illustrated for compression spring 1312 to developing cell 1.
Wherein, the support arm 1321 has towards the driving end of transmission gear and is oppositely arranged with the driving end Anti-drive end;The driving end is respectively arranged with the compression spring 1312, and be arranged on the driving end with the anti-drive end Compression spring 1312 provide urgent thrust be more than be arranged on the anti-drive end compression spring 1312 provide urgent thrust, with overcome driving The influence of radial load in Meshing Process of Spur Gear is held, is further ensured that photosensitive drums 211 are in close contact with developer roll 111.
When under external force, handle body 133 and bearing than relative to development housing 11 along towards development housing 11 Direction namely when rotating clockwise, compression spring 1312 are pressurized and store certain elastic potential energy;When cancelling external force, in compression spring 1312 Elastic potential energy effect under, compression spring 1312 compels to push away support arm 1321 relative to development housing 11 along the direction far from development housing 11 Namely rotate counterclockwise, support arm 1321 is lifted up photosensitive housing 21 while rotating counterclockwise, and photosensitive housing 21 is opposite It is rotated in development housing 11 around first rotating shaft 214, meanwhile, positioned at first rotating shaft 214 away from the photosensitive drums of the side of abutting part 132 211 press to the surface of developer roll 111, and photosensitive drums 211 are in close contact with developer roll 111.
Developing cell 1 provided in this embodiment pushes away component 13 with the urgent of the development rotation connection of housing 11 by setting, will compel The abutting part 132 pushed away in component 13 is abutted with photosensitive housing 21, in this way, compeling to push away what component 13 was rotated relative to development housing 11 In the process, pressurization part 131 can compel to push against socket part 132 rotates relative to development housing 11, with by abutting part 132 relative to aobvious The rotation of shadow housing 11 promotes developing cell 1 to be relatively rotated with the photosensitive unit 2 around first rotating shaft 214, so that photosensitive Drum 211 presses to developer roll 111 and is in close contact, and ensures that developer roll 111 can ensure good with 211 good contact of photosensitive drums Developing performance.
Meanwhile by that will compel to push away component 13 and be rotatably arranged on to develop on housing 11, compel to push away component 13 with more and position Installation space except the housing 11 that develops, so as to greatly reduce the occupancy to the space of developing chamber 113 in development housing 11, and The space for the powder recovery bin 212 that gives up in photosensitive housing 21 need not be occupied, so as to greatly reduce developing chamber 113 and useless powder recovery bin 212 capacity loss.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that:Its according to Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into Row equivalent replacement;And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (16)

1. a kind of developing cell, is detachably mounted on photosensitive unit, set between the developing cell and the photosensitive unit There is first rotating shaft and be rotatably coupled by the first rotating shaft, the developing cell includes:Develop housing and rotatable Ground is supported on the developer roll on the development housing, and the photosensitive unit includes:It photosensitive housing and is rotatably supported at described Photosensitive drums on photosensitive housing;
It is characterized in that, connect with the development housing into rotation urgent is additionally provided on the development housing pushes away component, it is described urgent It pushes away component and includes pressurization part and abutting part, the abutting part abuts with the photosensitive housing and pushes rush in the urgent of the pressurization part The developing cell is made to be relatively rotated with the photosensitive unit around the first rotating shaft, so that the photosensitive drums and the developer roll Close to each other or abutting.
2. developing cell according to claim 1, which is characterized in that it is described compel to push away component be located at the developer roll relative to The opposite side of the first rotating shaft.
3. developing cell according to claim 1, which is characterized in that the abutting part is acted on the photosensitive housing Line between position and the first rotating shaft of the direction of active force on the abutting part and the photosensitive housing.
4. developing cell according to claim 1, which is characterized in that described to compel to push away between component and the development housing also Light entrance port is provided with, the light entrance port is used to that incident light to be made to be incident on the photosensitive drums.
5. developing cell according to claim 1, which is characterized in that it is described compel to push away component further include and the development housing The rotating part of rotation connection, the abutting part are fixedly connected with the rotating part.
6. developing cell according to claim 4, which is characterized in that the rotating part be handle body, the handle master Body protrudes from the development housing;The abutting part is support arm, and one end of the support arm is fixed with the handle body to be connected It connects, the other end of the support arm is abutted with the photosensitive housing.
7. developing cell according to claim 6, which is characterized in that the development housing, which has, is provided with transmission gear Driving end and the anti-drive end being oppositely arranged with the driving end;The driving end is respectively arranged with the anti-drive end The pressurization part, and the urgent thrust that the pressurization part for being arranged on the driving end provides is more than the pressurization for being arranged on the anti-drive end The urgent thrust that portion provides.
8. developing cell according to claim 6, which is characterized in that the pressurization part is elastic component.
9. developing cell according to claim 8, which is characterized in that the elastic component is torsional spring, and the torsional spring passes through torsion Spring shaft is connect with the development housing into rotation, and the first arm of torsional spring is fixedly connected with the handle body, the second arm of torsional spring It is connected on the development housing.
10. developing cell according to claim 9, which is characterized in that the both ends of the handle body are respectively arranged with solid Fixed column, the first arm of the torsional spring are fixed in the fixed column.
11. developing cell according to claim 10, which is characterized in that the fixed column deviates from the one of the handle body End is provided with the flange extended along the axial direction perpendicular to the fixed column, to limit the torsional spring along away from the handle master The direction movement of body.
12. developing cell according to claim 8, which is characterized in that the elastic component be compression spring, one end of the compression spring The development housing is abutted, the other end of the compression spring abuts the support arm.
13. according to claim 1-12 any one of them developing cells, which is characterized in that the development housing further includes development Side cover is provided with sliding slot face and the first axis hole on the downside of the sliding slot face on the development side cover, on the photosensitive housing First rotating shaft is provided with, the first rotating shaft can be telescopically mounted to first axis hole along the sliding slot face.
14. developing cell according to claim 13, which is characterized in that the abutting part compels to push away effect in the pressurization part Under stroke be greater than or equal to the first rotating shaft the distance between along sliding slot face tail end to first axis hole.
15. a kind of handle box, which is characterized in that including:The developing cell and photosensitive unit that can mutually dismount, the developing cell First rotating shaft is equipped between the photosensitive unit and is rotatably coupled by the first rotating shaft;The photosensitive unit packet It includes:Photosensitive housing and the photosensitive drums being rotatably supported on the photosensitive housing;The developing cell is claim 1-14 Any one of them developing cell.
16. a kind of electronic imaging apparatus, which is characterized in that including:Image forming apparatus body and handle box, the handle box includes can The developing cell and photosensitive unit mutually dismounted, the handle box is removably mounted in the image forming apparatus body, described Developing cell is claim 1-14 any one of them developing cells.
CN201711462484.1A 2017-12-28 2017-12-28 Developing unit, process cartridge and electrophotographic apparatus Active CN108153127B (en)

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