CN105824224B - Processing box - Google Patents
Processing box Download PDFInfo
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- CN105824224B CN105824224B CN201510010685.2A CN201510010685A CN105824224B CN 105824224 B CN105824224 B CN 105824224B CN 201510010685 A CN201510010685 A CN 201510010685A CN 105824224 B CN105824224 B CN 105824224B
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- protrusion
- pair
- process cartridge
- receiving parts
- driving head
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Abstract
The invention relates to a processing box, which comprises a box body, a developing roller supported on the box body, and a driving component arranged on one side of the box body and used for receiving driving force from a machine driving head, wherein the driving component comprises a gear part and a power receiving part connected to the gear part, the power receiving part comprises a pair of first receiving parts and a pair of second receiving parts, the first receiving parts and the second receiving parts are adjacently arranged on the virtual circular surface at intervals, and a pair of meshing areas for accommodating the machine driving head are formed on the pair of first receiving parts or the pair of second receiving parts. Because the driving component of the processing box is provided with the first protrusion and the second protrusion which can deflect under the stress, and the first protrusion and the second protrusion are adjacently arranged along the circumferential direction at intervals, the occurrence of unstable meshing of the driving head is reduced.
Description
Technical Field
The present invention relates to a process cartridge, and more particularly, to a driving assembly of a process cartridge.
Background
An image forming apparatus, or electrophotographic image forming apparatus, is an apparatus that forms an image on a recording material by the principle of electrophotographic image forming. For example, electrophotographic copiers, laser printers, electrophotographic printers (such as laser printers and LED printers), facsimile machines, word processors, and the like. The image forming apparatus generally includes a developing cartridge detachably provided on a main body of the image forming apparatus.
Generally, a driving assembly is provided on a photosensitive drum of a process cartridge, and the driving assembly is engaged with a machine driving head in an image forming apparatus to drive the photosensitive drum to perform a rotational motion, driving the entire process cartridge to operate.
U.S. patent application publication No. US2008/0152388A1 discloses a process cartridge in which a drive assembly at one axial end of a photosensitive drum is in a ball-and-socket joint engagement structure. The engagement structure is easily disengaged from the drive assembly, particularly during transportation, and the universal joint engagement structure is difficult to engage with and disengage from the machine drive head, thereby losing the function or making the operation of the drive assembly unstable.
The prior art also discloses a process cartridge, the process cartridge can rotate continuously in the printing process, the driving component of the process cartridge also adopts the universal joint meshing structure disclosed in US2008/0152388A1, the universal joint driving component is meshed with and separated from the machine driving head continuously in the process of rotating the process cartridge, and the universal joint meshing structure is easy to wear in the process, so that the process cartridge cannot receive power.
Disclosure of Invention
An object of the present invention is to provide a process cartridge which solves the problems of the prior art that the joint engagement structure is difficult to engage with the machine driving head and easily fall off from the machine driving head, thereby losing the function or making the operation unstable of the driving assembly.
In order to solve the technical problems, the technical scheme of the invention is to provide a processing box.
The process cartridge is mounted to an image forming apparatus having a machine driving head, the process cartridge includes a cartridge body, a developing roller supported on the cartridge body, a driving assembly provided on one side of the cartridge body to receive a driving force from the machine driving head, the driving assembly including a gear portion and a power receiving portion connected to the gear portion, characterized in that: the power receiving part comprises a pair of first receiving parts and a pair of second receiving parts, the stress of which can deflect along the radial direction of the gear part, the pair of first receiving parts and the pair of second receiving parts form a virtual circular surface, the first receiving parts and the second receiving parts are arranged adjacently on the virtual circular surface at intervals, at least one pair of meshing areas for accommodating the machine driving head are formed on the pair of first receiving parts or the pair of second receiving parts,
the first receiving portion includes a first protrusion and a deformation portion deflectable and deformable in a radial direction of the gear portion, the first protrusion is connected to the deformation portion, the second receiving portion includes a second protrusion connected to the deformation portion, the engagement region is formed on the first protrusion,
the first protrusion and the second protrusion are arranged in a blocking manner in the circumferential direction, the first protrusion is meshed with the machine driving head, after the first protrusion is mounted on the deformation part, the first protrusion deflects and deforms along the radial direction along with the deformation part, the machine driving head presses the deformation part to deform and then enter the engagement area to be matched with the engagement area, the second protrusion and the first protrusion are arranged in a blocking manner in the circumferential direction, and the second protrusion is configured to limit the deformation direction of the first protrusion in the radial direction when the first protrusion is pressed and deformed, so that the first protrusion deforms towards the radial direction and prevents the machine driving head from directly penetrating through the power receiving part or falling off from the power receiving part.
The deformation part comprises an annular installation part, an installation sheet and a supporting sheet, wherein the installation sheet and the supporting sheet are adjacently arranged along the annular installation part at intervals.
The mounting piece protrudes inward toward the gear portion radial direction, and the support piece extends in the gear portion axial direction.
The gear part is provided with a positioning groove, the mounting piece is matched with the positioning groove, the first protrusion and the second protrusion are provided with mounting grooves, and the supporting piece is matched with the mounting grooves.
The engagement zone includes a bottom surface and an engagement surface, and the machine drive head contacts the bottom surface and the engagement surface when the machine drive head is engaged with the power receiving portion.
The engagement zone further includes a peripheral surface extending from the bottom surface.
The engagement zone further includes an anti-slip surface extending from the engagement surface.
The gear part is provided with a limit post for preventing the first protrusion or the second protrusion from excessively deforming, and the limit post is arranged on the end face of the gear part.
The first protrusion and the second protrusion are provided with an inner guide surface and an outer guide surface for guiding the driving head.
Because the driving component of the processing box is provided with the first protrusion and the second protrusion which are capable of deflecting under stress, and the first protrusion and the second protrusion are arranged adjacently along the circumferential direction at intervals, when the machine driving head forces one of the first protrusion or the second protrusion to deflect, the second protrusion or the first protrusion which is arranged adjacently and at intervals limits the deflection direction, so that the protrusion deflects inwards or outwards in the radial direction, thereby ensuring that the machine driving head can be accurately meshed with and separated from the meshing part, and reducing the unstable meshing condition.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a perspective view of a developing cartridge of the present invention;
fig. 2 is a schematic structural view of the developing cartridge of the present invention;
FIG. 3 is an exploded view of the drive assembly of the present invention;
FIG. 4 is a schematic view of the structure of the engagement portion of the present invention;
FIG. 5 is a schematic view of the structure of a first protrusion of the present invention;
FIG. 6 is a schematic view of the engagement portion and deformation portion of the present invention;
FIG. 7 is a schematic view of a second embodiment of the engagement portion of the present invention;
FIG. 8 is a schematic view of a first protrusion structure according to a second embodiment of the present invention;
FIG. 9 is a schematic view of a process cartridge of the present invention mounted to an image forming apparatus;
fig. 10 is a schematic view of the process cartridge of the present invention removed from the image forming apparatus.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the developing cartridge 1 provided by the present invention includes: a cartridge 10, a developing roller 20 supported at a front end of the cartridge, a gear train at one side of the cartridge 10, and a driving assembly 30, the driving assembly 30 being configured to receive a driving force from the image forming apparatus to drive the gear train.
As shown in fig. 2, the gear train includes a developing roller gear 40, a powder feeding roller gear 50, the developing roller gear 40 is disposed above the developing roller 20, the developing roller gear 40 receives a driving force from the driving assembly 30 to drive the developing roller 20 to operate, the powder feeding roller gear 50 is disposed above a powder feeding roller (not shown), and the powder feeding roller gear 50 receives a driving force from the driving assembly 30 to drive the powder feeding roller to rotate for powder feeding.
The detailed structure of the driving assembly according to the first embodiment of the present invention will be described with reference to fig. 3 to 6.
As shown in fig. 3, the driving assembly 30 provided by the present invention includes: the power receiving member 31, the gear member 34, and the fixing ring 35, the power receiving member 31 being connected to the gear member 34 for receiving an external driving force, the fixing ring 35 being sleeved over the power receiving member 31 to fix the power receiving member 31 to the gear member 34.
Referring to fig. 4 to 6, the power receiving member 31 includes an engaging portion 32 and a deforming portion 33, the engaging portion 32 includes a first protrusion 32a and two pairs of second protrusions 32b, the deforming portion 33 includes a mounting portion 33a and a supporting portion 33b, the supporting portion 33b is provided with a plurality of support pieces 33b1 spaced apart in a radial direction of the mounting portion 33a and extending in an axial direction X, mounting grooves 32a9 provided on the first protrusion 32a and the second protrusion 32b cooperate with the plurality of support pieces 33b1 to connect the first protrusion 32a, the second protrusion 32b to the support pieces 33b1, after the first protrusion 32a and the second protrusion 32b are mounted to the support pieces 33b1, the pair of first protrusions 32a and the pair of second protrusions 32b are formed in a substantially annular shape around the pair of first protrusions 32a and the second protrusions 32b arranged in a close proximity in the annular circumferential direction, a space 32e is formed, the pair of first protrusions 32a are formed at opposite positions of the annular shape, and the pair of second protrusions 32b are formed at opposite positions of the annular shape.
The first protrusion 32a and the second protrusion 32b are arranged in a circumferentially spaced arrangement in the annular circumferential direction, the first protrusion 32a is configured to engage with the machine driving head 100, an engagement area 32a1 accommodating the driving post 101 is provided thereon, when the machine driving head 100 is mounted to the deformation portion 33, the machine driving head 100 is deformed to press the deformation thereof into the engagement portion 32 along with the radial deflection, the random engagement area 32a1 is engaged with the transmission power, the second protrusion 32b is arranged in a circumferentially spaced adjacent arrangement with the first protrusion 32a, and the power receiving portion 31 is configured such that when the first protrusion 32a is deformed by pressing, the deformation direction of the first protrusion 32a is limited in the radial direction, the machine driving head 100 is deformed toward the radial direction, and the machine driving head 100 is prevented from directly passing through the power receiving portion 31 or falling off from the power receiving portion 31 during the engagement of the machine driving head 100.
In this embodiment, the first protrusions 32a are arranged in a pair, the second protrusions 32b are arranged in two pairs, and each of the first protrusions 32a and the second protrusions 32b are arranged adjacent to each other in the circumferential direction at intervals to form a virtual circle, and it may also be arranged that the first protrusions 32a are arranged in a pair, the second protrusions 32b are arranged in a pair, and each of the first protrusions 32a and the second protrusions 32b are arranged adjacent to each other in the circumferential direction at intervals to form a virtual circle.
The first protrusion 32a and the second protrusion 32b are provided with an inner guide surface 32d and an outer guide surface 32c,
the outer guide surface 32c is configured to guide the machine drive head 100 into the interior of the engagement portion 32, and the inner guide surface 32d is configured to be rotatable into the engagement zone 32a1 after the machine drive head 100 enters the interior of the engagement portion 32.
In this embodiment, the inner guide surface 32d and the outer guide surface 32c are both arc-shaped guide surfaces, so that the machine driving head 100 can be smoothly guided.
The engagement area 32a1 is configured to accommodate the machine driving post 101, which is surrounded by the bottom surface 32a5, the peripheral surface 32a4, the engagement surface 32a2, and the disengagement preventing surface 32a3, the bottom surface 32a5 is a flat plane configured to support the bottom surface of the machine driving post 101, the peripheral surface 32a4 extends from the bottom surface 32a5 in the axial direction X to prevent the machine driving head 100 from passing directly through the engagement area 32a1, the engagement surface 32a2 is disposed in abutment with the machine driving post 101 to receive the power of the machine driving head 100, the disengagement preventing surface 32a3 is disposed above the engagement surface 32a2 in the axial direction X and toward the engagement area 32a1, and the disengagement preventing surface 32a3 prevents the machine driving head 100 from being disengaged from the engagement area 32a 1.
The engagement region 32a1 is formed on the first protrusion 32a in the present embodiment, and may be provided on the second protrusion 32b or formed on both the first protrusion 32a and the second protrusion 32 b.
The deformation portion 33 includes a mounting portion 33a and a supporting portion 33b, the mounting portion 33a being provided in a ring shape, which is mounted onto the mounting surface 34c of the gear portion 34.
The support portion 33b includes a positioning piece 33b2 provided in the radial direction and a support piece 33b1 extending in the axial direction, the positioning piece 33b2 being provided to cooperate with the positioning groove 34b of the gear portion 34, the support piece 33b1 extending in the axial direction X, the support piece 33b1 being provided as an arc-shaped thin steel piece, the first projection 32a and the second projection 32b being connected to the support piece 33b1 through the mounting groove 32a9, and since the support piece 33b1 is a thin steel piece, it is deformed by force when it receives a force perpendicular to the axial direction X, and is deflected in the radial direction Y, so that the first projection 32a, the second projection 32b connected to the support piece 33b1 are deflected together.
In this embodiment, the mounting portions 33a in the supporting portion 33b are solid annular, the supporting pieces 33b1 are formed to be arranged at intervals in the circumferential direction of the annular, and those skilled in the art can change this manner, and the solid annular mounting portions 33a are arranged at intervals to form a plurality of segments, each of which is mounted to the positioning groove 34b.
The gear portion 34 is provided with a first tooth 34e, a second tooth 34d, a mounting surface 34c, a positioning groove 34b and a limit post 34a, the first tooth 34e is arranged around the gear portion 34 and is meshed with the powder feeding roller gear 50, the second tooth 34d is arranged around the gear portion 34 and is meshed with the developing roller gear 40, the mounting surface 34c is formed on the outer surface of the gear portion 34 and is configured to be matched with the mounting portion 33a so that the deformation portion 33 is mounted to the gear portion 34, the positioning groove 34b is formed on the end surface of the gear portion and is configured to be matched with the positioning piece 33b2, the deformation portion 33 is convenient to mount, the limit post 34a is arranged at the middle point of the end surface of the gear portion 34 and is configured to prevent excessive deformation of the support piece 33b1, and the principle is that: when the support piece 33b1 is excessively deformed, the first protrusion 32a or 32b located thereon may abut against the stopper post 34a, so that the support piece 33b1 cannot be further deformed.
The structure of a driving assembly according to another embodiment of the present invention will be described with reference to fig. 7 to 8, and the second embodiment is different from the first embodiment in that: the protrusions in the first embodiment are integrally formed with the supporting sheet to form a new power receiving portion 131, the power receiving portion 131 is surrounded by a pair of first protrusions 132a and two pairs of second protrusions 132b, and the first protrusions 132a and the second protrusions 132b are adjacently arranged in the circumferential direction at intervals and then connected to the gear portion 34.
The engagement and disengagement processes of a process cartridge provided by the present invention will be described in detail with reference to fig. 9 to 10.
Mounting process referring to fig. 9, when the process cartridge 1 of the present invention is mounted in the image forming apparatus, the driving post 101 of the machine driving head 100 first touches the first protrusion 32a or the second protrusion 32b of the engagement portion 32, and as the process cartridge 1 moves further in the Y direction, the driving post 101 presses the engagement portion 32 further radially inward under the guidance of the outer guide surface 32c, at this time, the supporting piece 33b1 is subjected to radial deflection deformation by the pressing force, the first protrusion 32a or the second protrusion 32b on the engagement portion 32 swings together, and due to the axial height difference formed by the swinging process, the machine driving head 100 enters the engagement portion 32, after which the machine driving head 100 makes the driving post 101 enter the engagement region 32a1 under the guidance of the inner guide surface 32d, and the engagement portion 32 is engaged with the machine driving head 100, and therefore, the power receiving portion 31 receives the driving force of the machine driving head 100 to drive the gear portion 34 to rotate.
In the disassembly process, referring to fig. 10, the driving post 101 of the machine driving head 100 first touches the first protrusion 32a or the second protrusion 32b of the engagement portion 32, and as the process cartridge 1 moves further in the Y direction, the driving post 101 presses the engagement portion 32 further radially outward under the guidance of the inner guide surface 32d, and at this time, the supporting piece 33b1 is radially deflected by the pressing force to deform, and the first protrusion 32a or the second protrusion 32b on the engagement portion 32 swings together, and an axial height difference is formed in the swinging process, so that the machine driving head 100 comes out of the engagement portion 32, and the engagement portion 32 is disengaged from the machine driving head 100.
Because the driving component of the processing box is provided with the first protrusion and the second protrusion which are capable of deflecting under stress, and the first protrusion and the second protrusion are arranged adjacently along the circumferential direction at intervals, when the machine driving head forces one of the first protrusion or the second protrusion to deflect, the second protrusion or the first protrusion which is arranged adjacently and at intervals limits the deflection direction, so that the protrusion deflects inwards or outwards in the radial direction, thereby ensuring that the machine driving head can be accurately meshed with and separated from the meshing part, and reducing the unstable meshing condition.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A process cartridge to be mounted in an image forming apparatus having a machine driving head with a driving column, the process cartridge comprising a cartridge body, a developing roller supported on the cartridge body, a driving assembly provided on one side of the cartridge body to receive a driving force from the machine driving head, the driving assembly including a gear portion and a power receiving portion connected to the gear portion, characterized in that: the power receiving part comprises a pair of first receiving parts and a pair of second receiving parts, the stress of the first receiving parts and the stress of the second receiving parts can deflect along the radial direction of the gear part, the pair of first receiving parts and the pair of second receiving parts form a virtual circular surface, the first receiving parts and the second receiving parts are adjacently arranged on the virtual circular surface at intervals, and at least one pair of meshing areas for accommodating the machine driving head are formed on the pair of first receiving parts or the pair of second receiving parts; the first receiving portion includes a first protrusion and a deformation portion that is swingably deformed in a radial direction of the gear portion, the first protrusion is connected to the deformation portion, the second receiving portion includes a second protrusion that is connected to the deformation portion, the engagement region is formed on the first protrusion, the first protrusion and the second protrusion are arranged in a circumferentially-spaced arrangement, the first protrusion is configured to engage with the machine driving head, when the first protrusion is mounted to the deformation portion, the first protrusion is swingably deformed in a radial direction together with the deformation portion, the machine driving head presses the deformation portion to engage with the engagement region after deformation, the second protrusion and the first protrusion are arranged in a circumferentially-spaced adjacent relation, and is configured to restrict the deformation direction of the first protrusion in a radial direction when the first protrusion is pressed and deformed, and to prevent the machine driving head from passing directly through the power receiving portion or falling off from the power receiving portion.
2. A process cartridge according to claim 1, wherein said deformation portion includes an annular mounting portion, a mounting piece and a supporting piece, said mounting piece being disposed adjacent to said supporting piece at a spacing along said annular mounting portion.
3. A process cartridge according to claim 2, wherein said mounting piece protrudes inward in a radial direction of said gear portion, and said supporting piece extends in an axial direction of said gear portion.
4. A process cartridge according to claim 3, wherein said gear portion is provided with a positioning groove, said mounting piece is fitted to said positioning groove, said first projection and said second projection are provided with mounting grooves, and said supporting piece is fitted to said mounting grooves.
5. A process cartridge according to any one of claims 1-4, wherein said engagement section includes a bottom surface and an engagement surface, said machine driving head contacting said bottom surface and engagement surface when said machine driving head is engaged with said power receiving portion.
6. The process cartridge of claim 5, wherein said engagement zone further comprises a peripheral surface extending from said bottom surface.
7. The process cartridge of claim 6, wherein said engagement zone further comprises a disengagement preventing surface extending from said engagement surface.
8. A process cartridge according to claim 7, wherein said gear portion is provided with a stopper post for preventing excessive deformation of said first projection or said second projection, said stopper post being provided at an end face of the gear portion.
9. A process cartridge according to claim 8, wherein said first projection and said second projection are each provided with an inner guide surface and an outer guide surface that guide said drive head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510010685.2A CN105824224B (en) | 2015-01-09 | 2015-01-09 | Processing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510010685.2A CN105824224B (en) | 2015-01-09 | 2015-01-09 | Processing box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105824224A CN105824224A (en) | 2016-08-03 |
| CN105824224B true CN105824224B (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510010685.2A Active CN105824224B (en) | 2015-01-09 | 2015-01-09 | Processing box |
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| CN (1) | CN105824224B (en) |
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| JP4869289B2 (en) * | 2008-05-27 | 2012-02-08 | キヤノン株式会社 | Process cartridge and electrophotographic image forming apparatus |
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| CN202033587U (en) * | 2011-04-30 | 2011-11-09 | 江西亿铂电子科技有限公司 | Photosensitive drum and processing case with same |
| CN202041766U (en) * | 2011-05-06 | 2011-11-16 | 珠海天威飞马打印耗材有限公司 | Driving component, photosensitive drum and processing box |
| CN202904225U (en) * | 2012-09-05 | 2013-04-24 | 江西镭博钛电子科技有限公司 | Power receiving head and processing box |
| CN203299520U (en) * | 2013-06-06 | 2013-11-20 | 江西镭博钛电子科技有限公司 | Developing box |
| CN104035311B (en) * | 2014-06-14 | 2016-09-21 | 江西镭博钛电子科技有限公司 | A kind of handle box |
| CN104199264B (en) * | 2014-09-25 | 2019-01-08 | 珠海天威飞马打印耗材有限公司 | A kind of cartridge |
| CN204422974U (en) * | 2015-01-09 | 2015-06-24 | 江西镭博钛电子科技有限公司 | A kind of handle box |
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| JPH05188817A (en) * | 1992-01-08 | 1993-07-30 | Ricoh Co Ltd | Fixing device for electrophotographic device |
| JP2001124056A (en) * | 1999-10-26 | 2001-05-08 | Ricoh Co Ltd | Rotor unit |
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| JP2006139141A (en) * | 2004-11-12 | 2006-06-01 | Canon Inc | Sealing member, toner replenishing container and image forming apparatus |
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| CN105824224A (en) | 2016-08-03 |
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