CN106292236B - Processing box - Google Patents
Processing box Download PDFInfo
- Publication number
- CN106292236B CN106292236B CN201510380312.4A CN201510380312A CN106292236B CN 106292236 B CN106292236 B CN 106292236B CN 201510380312 A CN201510380312 A CN 201510380312A CN 106292236 B CN106292236 B CN 106292236B
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- China
- Prior art keywords
- driving force
- cartridge
- developing
- force receiving
- driving
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical 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
- G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
- G03G21/1817—Arrangements or disposition of the complete process cartridge or parts thereof having a submodular arrangement
- G03G21/1825—Pivotable subunit connection
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical 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
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
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- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrophotography Configuration And Component (AREA)
Abstract
The invention discloses a processing box, comprising: the developing box, set up the developing roller in the developing box, set up the drive assembly in developing roller drive side. The driving assembly comprises the retraction control rod and the driving force receiving assembly, the retraction of the driving force receiving component is controlled through the retraction operation rod, and the driving head is disengaged from the imaging equipment, so that the clutch of the driving structure associated with the developing roller and the driving head in the imaging equipment is realized, and the problems that in the prior art, the associated driving structure of the developing roller is more, the cost is high, and the driving transmission component is easy to break off in the transmission process are solved.
Description
Technical Field
The present disclosure relates to process cartridges, and particularly to a drive head retractable mechanism of a process cartridge.
Background
The image forming apparatus forms an image on a recording material using an electrophotographic image forming process. Examples of the image forming apparatus include an electrophotographic copying machine, an electrophotographic printer (e.g., a laser beam printer, an LED printer), a facsimile machine, a word processor, and the like. The process cartridge includes at least one of an electrophotographic photosensitive drum as an image bearing member and a process device (developer bearing member (developing roller)) capable of acting on the drum, the electrophotographic photosensitive drum and the process device being integrally configured as a cartridge detachably mountable to the image forming apparatus. The cartridge may include a drum and a developing roller in one body, or may include a drum, or may include a developing roller. The cartridge including the drum is a drum cartridge, and the cartridge including the developing roller is a developing cartridge.
As shown in fig. 1, chinese patent publication No. CN104541212 discloses a driving force transmission clutch structure connected to a developing roller, and when a developing cartridge 9 is rotated relative to a photosensitive drum 4 of a drum cartridge (not shown in the figure), a separation operating lever 73 receives a force originating in an image forming apparatus and relatively rotates with a separation cam 872 and causes the separation cam to move away from the separation operating lever 73 in its axial direction, and the separation cam 872 presses a downstream drive transmitting member 571 so that it is separated from an upstream drive transmitting member 474. This completes the driving clutch operation of the developing roller. The above-described drive clutch structural elements are complicated to assemble and increase the production cost of the product, and the upstream and downstream transmission members 474 and 571 disposed inside the release lever 73 and the release cam 872 become smaller in size and are easily broken during the drive force transmission.
Disclosure of Invention
The invention provides a processing box, which aims to solve the technical problems that in the prior art, a driving force transmission clutch structure element is more, the assembly is complex, and an intermediate transmission member is easy to break off in the driving force transmission process.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a process cartridge detachably mountable to an image forming apparatus having a separation member and a driving head,
the process cartridge includes:
a drum cartridge;
a photosensitive drum;
a developing cartridge;
a developing roller;
the developing cartridge has a contact state in which the photosensitive drum is in contact with the developing roller and a separated state in which the photosensitive drum is separated from the developing roller with respect to the drum cartridge;
a separation force receiving member for cooperating with a separation member in the image forming apparatus to receive a force from the separation member to move the developing cartridge relative to the drum cartridge to a separated state in which the developing cartridge is separated from the drum cartridge;
a driving force receiving assembly provided at a driving force receiving side of the developing cartridge, for receiving a driving force of the driving head and transmitting the same to the developing roller, and having a protruding portion directly engageable with the driving head;
the process cartridge further includes a retracting lever, the protruding portion being in contact with and engaged with the driving head when the developing cartridge is in a contact state with respect to the drum cartridge, the retracting lever being adapted to receive an external force and control the protruding portion to be disengaged from the driving head when the developing cartridge is in a separated state with respect to the drum cartridge. The driving force receiving assembly includes a driving force transmitting member and a driving force receiving member.
The driving force receiving member includes a claw portion, and the driving force receiving member includes a claw receiving portion
The driving force receiving assembly is provided with a first inclined surface, and the retracting operating rod is provided with a second inclined surface matched with the first inclined surface. The driving force receiving assembly is integrally provided or separately provided by a plurality of members.
After the technical scheme is adopted, the processing box realizes the separation of the driving force receiving component and the driving head in the imaging equipment by utilizing the action of the retraction operating rod and the driving force transmitting component, reduces the complexity of the driving structure of the developing roller, reduces the production cost of products, and greatly improves the strength of the driving force transmitting component in the driving force transmitting process and ensures that the transmission of the driving force is more stable because the driving force transmitting component and the driving force receiving component are fixedly combined.
Description of the drawings:
FIG. 1 is an exploded view of a developing roller driving structure of a prior art process cartridge;
FIG. 2 is a schematic perspective view of a process cartridge in an embodiment of the present invention;
FIG. 3 is an exploded view of a developing roller driving structure of the process cartridge in the embodiment of the present invention;
FIG. 4 is an exploded schematic view of a clutch configuration in an embodiment of the present invention;
FIG. 5 is a schematic view of a clutch structure in a state where a developing roller is in contact with a photosensitive drum according to an embodiment of the present invention;
FIG. 6 is a sectional view of the driving side of the developing cartridge in a state where the developing roller is in contact with the photosensitive drum in the embodiment of the present invention;
FIG. 7 is an exploded view of a developing roller driving structure of the process cartridge in the embodiment of the present invention;
FIG. 8 is a schematic view of a clutch structure in a state where a developing roller is separated from a photosensitive drum in the embodiment of the present invention;
FIG. 9 is a sectional view of the driving side of the developing cartridge in a state where the developing roller is separated from the photosensitive drum in the embodiment of the present invention;
the specific implementation mode is as follows:
embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
First, as shown in fig. 2, the process cartridge of the present invention includes a developing cartridge 1, a drum cartridge 23, a force receiving member 24 provided on the developing cartridge 1, the force receiving member 24 for receiving a force from a separating member (not shown in the drawings) in an image forming apparatus, so that the above-described developing roller 2 (refer to fig. 3) in the developing cartridge 1 and the photosensitive drum 12 (refer to fig. 3) in the drum cartridge 23 are moved from a contact position to a separation position.
As shown in fig. 3, the process cartridge of the present invention comprises: the developing cartridge 1, the developing roller 2, the bearing member 3, the idler gear 4, the developing roller gear 5, the spring 6, the driving force transmitting member 7, the retracting operation lever 8, the driving force receiving member 9, the edge cover 10, and the support hole 11. The direction in which the process cartridge drives the side cover member 10 with respect to the bearing member 3 is referred to as a right direction. The specific construction of the driving side of the process cartridge will be described with reference to the above-mentioned members, the developing roller 2 is disposed in the developing cartridge 1, the bearing member 3 disposed on the right side of the developing roller 2 has an idler wheel mounting hole 13 and a developing roller mounting hole 14, the developing roller 14 is mounted into the developing roller mounting hole 14 from the left side, the idler wheel 4 is mounted into the idler wheel mounting hole 13 from the right side, the developing gear 5 engaged with the idler wheel 4 is mounted into the portion of the bearing member 3 protruding from the developing roller 2 from the right side, the driving force transmitting member 7 and the retracting lever 8 and the driving force receiving member 9 are integrally mounted into the idler wheel 4 from the right side, the projecting portion 15 on the left side of the driving force transmitting member 7 is inserted into the idler wheel 4 and engaged with the idler wheel 4, the spring 6 is mounted between the driving force transmitting member 7 and the idler wheel 4 for controlling the expansion and contraction between, the edge cover 10 is provided at the rightmost end of the developing cartridge, and is provided with a support hole 11 for supporting the driving force receiving member 9.
As shown in fig. 4, a first inclined surface 16 is provided on the outer circumference of the driving force transmission member 7, a second inclined surface 17 cooperating with the first inclined surface 16 is provided on the retraction operation lever 8, and when the retraction operation lever 8 and the driving force transmission member 7 rotate relatively, the first inclined surface 16 and the second inclined surface 17 displace relatively, so that the retraction operation lever 8 and the driving force transmission member 7 move relatively along the axial direction. The driving force transmitting member 7 is further provided with a claw portion 16 projecting in the axial direction thereof, the driving force receiving member 9 is provided with a claw receiving portion 19, and when the driving force transmitting member 7 is attached to the driving force receiving member 9, the claw portion 16 is caught in the claw receiving portion 19 to restrict the relative movement of the driving force transmitting member 9 and the driving force transmitting member 7 in both axial directions.
The process cartridge has two states of contact and separation of the drum cartridge 23 and the developing cartridge 1, and the driving of the developing roller 2 in the two states is explained in detail below with reference to fig. 3 to 9.
The contact state of the drum cartridge 23 and the developing cartridge 1, as shown in fig. 3, 5 and 6, when the photosensitive drum 12 in the drum cartridge 23 is in the contact position with the developing roller 2, the driving force transmitting member 7, the retracting lever 8 and the driving force receiving member 9 are engaged as shown in fig. 4, at this time, the retracting lever 8 does not press the driving force transmitting member 7, the spring 6 pushes the driving force transmitting member 7 and forces the driving force receiving member 9 to protrude out of the support hole 11 in the edge cover 10 so that the driving force receiving member 9 protrudes out of the right side surface of the edge cover 10, when the image forming apparatus is operated, a driving head (not shown in the figure) from the image forming apparatus engages with a portion of the driving force receiving member 9 protruding out of the right side surface of the edge cover 10 and rotates the driving force receiving member 9, the driving force receiving member 9 transmits the received rotational force to the idle pulley 4 through the intermediate transmitting member 8, the idle pulley 4 further transmits the received rotational force to the developing, the driving rotation of the developing roller 2 is thus realized.
In the separated state of the drum cartridge 23 and the developing cartridge 1, as shown in fig. 7, 8 and 9, a recess 21 is provided on the side cover 10, a projection 20 which is engaged with the recess 21 is provided on the retracting lever 8, the developing roller 2 is separated from the photosensitive drum 12 when the developing cartridge 2 rotates about its rotational center, the retracting lever 8 has a tendency to rotate together with the developing cartridge 2, the projection 20 on the retracting lever 8 is blocked by the recess 21 on the side cover so that the retracting lever 8 cannot rotate together with the developing cartridge 2, the driving force transmitting member 7 rotates together with the developing cartridge 2, and thus, the second inclined surface 17 in the retracting lever 8 rotates relative to the first inclined surface 16 in the driving force transmitting member 7, so that the driving force transmitting member 7 retracts leftward against the elastic force of the spring 6, and the driving force transmitting member 7 pulls the driving force receiving member 9 leftward by the claw 18 connected to the driving force receiving member 9 and retracts the driving force receiving member 9 together with the driving force in the image forming apparatus The movable head is disengaged, and thus, the separation of the driving force receiving member 9 from the driving head in the image forming apparatus is completed, and even if the image forming apparatus driving head continues to rotate, the developing roller 2 provided in the developing cartridge 1 does not rotate. The above-described drive force receiving member 9 and drive force transmitting member 7 are referred to in combination as a drive force receiving assembly 22. The driving force receiving member 22 has a substantially circular ring-shaped structure, an inner circular portion including the claw portions 18 and the claw receiving portions 19 constitutes an inner core portion of the driving force receiving member 22, and an outer circular portion including the first inclined surface 16 is referred to as an outer peripheral portion of the driving force receiving member 22.
Of course, the recess 21 may not be provided in the edge cover 10, and the technical effects of the present embodiment may be achieved by providing it in another member of the process cartridge as long as the retracting lever 8 is prevented from rotating together with the developing cartridge 1.
While the driving force transmitting member 7, the retraction releasing member 8 and the driving force receiving member 9 are provided separately in the present embodiment for the convenience of assembly, it is of course possible to construct the driving force transmitting member 7 and the driving force receiving member 9 as an integral structure, which may be referred to as a driving force receiving member on the developing cartridge 2, and the retraction releasing member 8 only needs to push the driving force receiving member of the integral structure, which also enables the operation of releasing the driving force receiving member from the driving head in the image forming apparatus in the present embodiment.
In this embodiment, the retraction lever 8 is provided with a protrusion 20, and the side cover is provided with a recess 21, but one of the ways of limiting the relative movement is obviously more ways to achieve the same effect, for example, the retraction lever 8 is provided with a recess, the side cover is provided with a corresponding projection, or two ways of completely fixing by welding are adopted. In the present embodiment, the retracting lever 8 has an annular shape, and the protruding portion 20 thereof protrudes from the outer peripheral portion of the driving force receiving member 22, but it is desirable that it is made smaller, and the retracting lever 8 can be made smaller than the driving force receiving member 22, and specifically, the retracting lever 8 can fall completely within the projection range of the driving force receiving member 22 as viewed in the axial direction of the driving force receiving member.
Compared with the existing processing box, the processing box provided by the invention has the advantages that the driving force receiving component is separated from the driving head in the imaging device by utilizing the functions of the retraction operating rod and the driving force transmitting component, the complexity of the driving structure of the developing roller is reduced, the production cost of products is reduced, and meanwhile, the strength of the driving force transmitting component in the driving force transmitting process is greatly improved and the transmission of the driving force is more stable due to the fixed combination of the driving force transmitting component and the driving force receiving component.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A process cartridge detachably mountable to an image forming apparatus having a separation member and a driving head,
the process cartridge includes:
a drum cartridge (23);
a photosensitive drum (12) provided in the drum cartridge (23);
a developing cartridge (1);
a developing roller (2) provided in the developing cartridge (1);
the developing cartridge (1) has a contact state in which the photosensitive drum (12) is in contact with the developing roller (2) and a separated state in which the photosensitive drum (12) is separated from the developing roller (2) with respect to the drum cartridge (23);
a separation force receiving member 9 for cooperating with the separation member in the image forming apparatus to receive a force from the separation member to move the developing cartridge (1) relative to the drum cartridge (23) to a separated state in which the developing roller (2) is separated from the photosensitive drum (12);
a driving force receiving assembly (22) provided on a driving force receiving side of the developing cartridge (1) for receiving a driving force of the driving head and transmitting to the developing roller (2), including a driving force transmitting member (7) and a driving force receiving member (9), the driving force receiving member (9) having a protruding portion directly engageable with the driving head;
characterized in that the process cartridge further comprises a retracting lever (8), the protruding portion of the process cartridge is in contact with and engaged with the driving head of the image forming apparatus when the developing cartridge (1) is in a contact state with respect to the drum cartridge (23), the retracting lever (8) can receive an external force and control the protruding portion of the process cartridge to be disengaged from the driving head of the image forming apparatus when the developing cartridge (1) is in a separated state with respect to the drum cartridge (23), the driving force transmission member (7) has a first slope (16), a second slope (17) cooperating with the first slope (16) is provided on the retracting lever (8), and when the retracting lever (8) and the driving force transmission member (7) are relatively rotated, the first slope (16) and the second slope (17) are relatively displaced so that the retracting lever (8) and the driving force transmission member (8) are relatively displaced The member (7) is relatively moved and the protruding portion is disengaged from the driving head of the image forming apparatus, the driving force transmitting member (7) and the driving force receiving member (9) are combined into the driving force receiving assembly (22) by a claw portion (18) or a claw receiving portion (19) having elasticity, and the claw portion (18) is snapped into the claw receiving portion (19) to restrict the relative movement of the driving force receiving member (9) and the driving force transmitting member (7) in the axial direction.
2. A process cartridge according to claim 1, wherein a regulating portion (21) is further provided on said developing cartridge (1), and said retracting lever (8) has a regulated portion (20) which cooperates with said regulating portion (21) to prevent said retracting lever (8) from rotating together with said developing cartridge (1) when said developing cartridge (1) rotates relative to said drum cartridge (23).
3. A process cartridge according to claim 1, wherein said driving force receiving member (22) has an inner core portion transmitting the driving force and an outer peripheral portion engaged with said retracting lever (8), said first slope (16) being formed on said outer peripheral portion.
4. A process cartridge according to claim 2, further comprising a side cover (10) provided on a driving force receiving side thereof, said regulating portion (21) being provided on said side cover (10).
5. A process cartridge according to claim 4, wherein said process cartridge has two end faces, and said edge cover (10) is provided on one of said two end faces, and said retracting lever (8) overlaps at least a part of said driving force receiving member (22) as viewed from one end to the other end of said process cartridge.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520387698 | 2015-06-08 | ||
| CN2015203876987 | 2015-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106292236A CN106292236A (en) | 2017-01-04 |
| CN106292236B true CN106292236B (en) | 2021-05-28 |
Family
ID=57651331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510380312.4A Active CN106292236B (en) | 2015-06-08 | 2015-07-02 | Processing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106292236B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107329388B (en) * | 2017-05-17 | 2023-09-01 | 珠海联合天润打印耗材有限公司 | Transmission adjusting device, processing box and imaging equipment |
| CN109031906B (en) * | 2018-07-31 | 2021-02-19 | 珠海市拓佳科技有限公司 | Developing box |
| CN210488238U (en) * | 2019-09-12 | 2020-05-08 | 珠海联合天润打印耗材有限公司 | Processing box |
| CN214202052U (en) * | 2020-12-03 | 2021-09-14 | 珠海天威飞马打印耗材有限公司 | Powder box assembly, developing box and printer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101082200B1 (en) * | 2006-12-22 | 2011-11-09 | 캐논 가부시끼가이샤 | Rotational force transmitting part |
| CN103376696A (en) * | 2013-07-25 | 2013-10-30 | 珠海天威飞马打印耗材有限公司 | Torque transmission device, and processing box for laser printer |
| WO2013187534A1 (en) * | 2012-06-15 | 2013-12-19 | キヤノン株式会社 | Cartridge, process cartridge, and electrophotographic image generation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5273194B2 (en) * | 2011-04-28 | 2013-08-28 | ブラザー工業株式会社 | cartridge |
-
2015
- 2015-07-02 CN CN201510380312.4A patent/CN106292236B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101082200B1 (en) * | 2006-12-22 | 2011-11-09 | 캐논 가부시끼가이샤 | Rotational force transmitting part |
| WO2013187534A1 (en) * | 2012-06-15 | 2013-12-19 | キヤノン株式会社 | Cartridge, process cartridge, and electrophotographic image generation device |
| CN103376696A (en) * | 2013-07-25 | 2013-10-30 | 珠海天威飞马打印耗材有限公司 | Torque transmission device, and processing box for laser printer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106292236A (en) | 2017-01-04 |
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