CN108535989B - Processing box - Google Patents
Processing box Download PDFInfo
- Publication number
- CN108535989B CN108535989B CN201810641233.8A CN201810641233A CN108535989B CN 108535989 B CN108535989 B CN 108535989B CN 201810641233 A CN201810641233 A CN 201810641233A CN 108535989 B CN108535989 B CN 108535989B
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- China
- Prior art keywords
- gear
- powder bin
- driving force
- intermediate gear
- gear portion
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- 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.)
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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
- G03G21/186—Axial couplings
Abstract
The invention relates to a processing box, which comprises a powder bin and a waste powder bin which are combined with each other, wherein the powder bin comprises a powder bin shell, a first rotating piece and a driving force transmission mechanism, wherein the first rotating piece is rotatably arranged in the powder bin shell; the waste powder bin comprises a waste powder bin shell and a second rotating piece which is rotatably arranged in the waste powder bin shell; the second rotating member includes a power receiving member and a power transmitting member at longitudinal ends thereof; the driving force transmission mechanism comprises a first gear serving as a first rotating member gear, an intermediate gear set used for receiving the driving force of the first gear, and the first gear is also meshed with the power transmission member; the intermediate gear set includes at least one intermediate gear including a large gear portion and a small gear portion which are integrally formed, the large gear portion being closer to the distal end face of the powder hopper housing than the small gear portion in a length direction of the process cartridge; therefore, the driving force transmission mechanism is more compact as a whole, occupies a smaller space, and is more advantageous for the miniaturization of the process cartridge.
Description
Technical Field
The present invention relates to the field of electrophotographic image forming, and more particularly to a process cartridge detachably mountable in an electrophotographic image forming apparatus, and a process cartridge.
Background
The process cartridge is operated to receive a driving force from the apparatus and to transmit the received driving force to a rotary member rotatably mounted in the process cartridge through a driving force transmission mechanism provided therein, wherein the rotary member includes at least one of a photosensitive member, a developing member, a supplying member and an agitating member.
Conventionally, the driving force transmission mechanism is composed of a plurality of gears engaged with each other, and the end-mounted power receiving member of at least one of the photosensitive member and the developing member receives the driving force from the apparatus and transmits the driving force through the driving force transmission mechanism.
Disclosure of Invention
The present invention provides a process cartridge which is advantageous for miniaturization of the process cartridge by reducing the space occupied by a conventional driving force transmission mechanism by improving the driving force transmission mechanism.
In order to achieve the purpose, the invention adopts the following technical scheme:
a processing box which comprises a powder bin and a waste powder bin which are combined with each other, wherein the powder bin comprises a powder bin shell, a first rotating piece which is rotatably arranged in the powder bin shell, and a driving force transmission mechanism which is arranged on one tail end surface of the powder bin shell; the waste powder bin comprises a waste powder bin shell and a second rotating piece which is rotatably arranged in the waste powder bin shell; the second rotating member includes a power receiving member for receiving the driving force and a power transmitting member for transmitting the driving force at a longitudinal end thereof; the driving force transmission mechanism comprises a first gear serving as a first rotating member gear and an intermediate gear set for receiving the driving force of the first gear, wherein the first gear is also meshed with the power transmission member; the intermediate gear group includes at least one intermediate gear including a large gear portion and a small gear portion which are integrally formed, the large gear portion being closer to the distal end face of the powder hopper housing than the small gear portion in a length direction of the process cartridge.
The intermediate gear set comprises a first intermediate gear and a second intermediate gear which are meshed with each other, the first intermediate gear is also meshed with the first gear, and the second intermediate gear is used for transmitting the driving force of the first gear; the first intermediate gear includes a first large gear portion and a first small gear portion which are integrally formed, and the first large gear portion is closer to the distal end face of the powder hopper housing than the first small gear portion in the longitudinal direction of the process cartridge.
The intermediate gear set comprises a first intermediate gear and a second intermediate gear which are meshed with each other, the first intermediate gear is also meshed with the first gear, and the second intermediate gear is used for transmitting the driving force of the first gear; the second intermediate gear includes a second large gear portion and a second small gear portion which are integrally formed, and the second large gear portion is closer to the distal end face of the powder hopper housing than the second small gear portion in the longitudinal direction of the process cartridge.
The waste powder bin also comprises a support protruding from the waste powder bin shell, the waste powder bin shell is provided with two opposite tail end surfaces, and an avoiding part is formed between one of the tail end surfaces of the waste powder bin shell and the support.
The waste powder bin shell is provided with two opposite tail end surfaces, and an avoiding part is formed between one of the tail end surfaces of the waste powder bin shell and the power receiving part.
The waste powder bin shell is provided with two opposite end faces, and an avoiding part is formed between one end face of the waste powder bin shell and the power transmission piece.
The waste powder bin also comprises a support protruding from the waste powder bin shell, the support is used for supporting the second rotating piece, the waste powder bin shell is provided with two opposite end faces, and a certain distance is reserved between one end face of the waste powder bin shell and the support in the length direction of the second rotating piece.
The waste powder bin shell is provided with two opposite end faces, and a certain distance is reserved between one end face of the waste powder bin shell and the power receiving part in the length direction of the second rotating part.
The waste powder bin shell is provided with two opposite end faces, and a certain distance is reserved between one end face of the waste powder bin shell and the power transmission piece in the length direction of the second rotating piece.
After the process cartridge is assembled, the process cartridge forms a recess on the side where the power receiving member is located.
The first intermediate gear in the driving force transmission mechanism is a duplicate gear, in the length direction of the photosensitive piece, the large gear part of the first intermediate gear is closer to the tail end face of the powder bin shell than the small gear part, and the large gear part is meshed with the gear arranged on the photosensitive piece and used for receiving the driving force output by the gear, so that the driving force transmission mechanism is more compact as a whole, occupies smaller space and is more beneficial to the miniaturization of the processing box.
Drawings
Fig. 1 is a schematic view of the overall structure of a process cartridge according to the present invention.
Fig. 2 is a plan view of the process cartridge viewed from the exposure direction of the photosensitive member.
Fig. 3 is a side view of the driving force transmission mechanism as viewed from the powder hopper portion to the waste powder hopper portion of the process cartridge.
Fig. 4 is a schematic view of the overall structure of the driving force transmission mechanism in the process cartridge according to the present invention.
Fig. 5 is a schematic view of the entire structure of a driving end cap in the process cartridge according to the present invention.
Fig. 6 is a sectional view of the process cartridge according to the present invention, taken along the longitudinal direction of the developing member, and viewed from the powder hopper portion toward the waste powder hopper portion.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[ Structure of Process Cartridge ]
Fig. 1 is a schematic view of the overall structure of a process cartridge according to the present invention, and fig. 2 is a plan view of the process cartridge as viewed from the exposure direction of a photosensitive member. As shown in the figure, the process cartridge C includes a powder bin 10 and a waste powder bin 20, which are combined with each other, wherein the powder bin 10 is used for storing carbon powder required by the process cartridge C during operation, and the waste powder bin 20 is used for storing waste powder generated by the process cartridge C during operation.
The powder hopper 10 includes a powder hopper housing 11, a first rotary/developing member 14 (shown in fig. 3 and 4) rotatably mounted in the powder hopper housing 11, and a driving end cap 12 and a non-driving end cap 13 respectively located at both ends of the powder hopper housing 11, so that the developing member 14 is rotatably located between the driving end cap 12 and the non-driving end cap 13.
The waste toner hopper 20 includes a waste toner hopper housing 21, a second rotating member/photosensitive member 22 rotatably mounted in the waste toner hopper housing 21, and a holder 24 protruding from the waste toner hopper housing 21, the holder 24 being for holding the photosensitive member 22, the waste toner hopper housing 21 having opposite end surfaces 21a and 21b in a length direction of the photosensitive member 22; the developing member 14 is opposite to the photosensitive member 22, when the processing box C works, an electrostatic latent image is formed on the surface of the photosensitive member 22, and the developing member 14 develops the electrostatic latent image through carbon powder carried on the surface of the developing member; the photosensitive member 22 includes a photosensitive drum 221, a power receiving member 222 and a power transmission member 223 at the longitudinal end of the photosensitive drum, preferably, the power transmission member 223 is a gear provided on the photosensitive drum 221; in the embodiment of the present invention, the power transmission member 223 is located at the same end of the photosensitive drum 221 as the power receiving member 222, the power receiving member 222 is a non-gear portion for coupling with the power output member in the apparatus and receiving the driving force output from the power output member, and the power transmission member 223 is used for transmitting the driving force received by the power receiving member 222, and preferably, the power receiving member 222 protrudes from one end of the photosensitive drum 221 along the rotational axis of the photosensitive member 22.
Further, in order to prevent the power receiving member 222 from being interfered with or worn by the outside, as shown in fig. 1 and 2, in the longitudinal direction of the photosensitive member 22, the power receiving member 222 or the bracket 24 or the power transmission member 223 is spaced from the distal end surface 21a of the waste bin housing 21 nearest thereto by a certain distance, that is, the escape portion 23 is formed between the distal end surface 21a of the waste bin housing 21 and the power receiving member 222, or, a relief portion 23 is formed between the end surface 21a of the waste toner housing 21 and the bracket 24, meanwhile, the escape part 23 is also located between the distal end surface 21a of the waste toner hopper housing 21 and the power transmission member 223, when the process cartridge C is assembled, the process cartridge C forms a recess at the side where the power receiving member 222 is located, the recess is formed by the escape portion 23, in other words, the power receiving member 222 is protected by the powder hopper 10 and the waste powder hopper housing 21, and thus is not interfered with from the outside or worn by an external part; as shown in fig. 2, in the longitudinal direction of the photosensitive member 22, the length of the waste powder hopper housing 21 is d1, the length between the two end surfaces 21a and 21b of the waste powder hopper housing 21 is d2, the length of the photosensitive member 22 is d3, and the length of the photosensitive drum 221 is d4, which satisfies d1 ≧ d2 > d3 > d 4.
[ Driving force transmitting mechanism ]
FIG. 3 is a side view of the driving force transmission mechanism as viewed from the powder hopper portion to the waste powder hopper portion of the process cartridge; fig. 4 is a schematic view of the overall structure of the driving force transmission mechanism in the process cartridge according to the present invention.
As shown in the drawing, the driving force transmission mechanism 15 is mounted on one end surface 111 of the powder hopper housing 11, and includes a first gear 151 as a developing member gear, and an intermediate gear group engaged with the first gear 151, the first gear 151 also being engaged with a gear 223 provided on the photosensitive member 22 for transmitting the driving force received by the power receiving member 222 through the intermediate gear group; in the embodiment of the present invention, the powder hopper 10 further includes an agitating member (not shown) rotatably mounted in the powder hopper housing 11, and therefore, the driving force transmission mechanism 15 further includes a second gear 154 as an agitating member gear, the second gear 154 is engaged with the intermediate gear set, and the first gear 151 transmits the driving force to the second gear 154 through the intermediate gear set.
Preferably, the intermediate gear set includes a first intermediate gear 152 and a second intermediate gear 153 which are engaged with each other, wherein the first intermediate gear 152 is also engaged with the first gear 151, the second intermediate gear 153 is also engaged with the second gear 154, and the first intermediate gear 152 and the second intermediate gear 153 are duplicate gears, and thus, the second intermediate gear 153 is used for transmitting the driving force of the first gear 151; as shown in fig. 4, the first intermediate gear 152 includes a first large gear portion 152a and a first small gear portion 152b which are integrally molded, the second intermediate gear 153 includes a second large gear portion 153a and a second small gear portion 153b which are integrally molded, the first small gear portion 152b is engaged with the second large gear portion 153a, the first large gear portion 152a is engaged with the first gear 151, and the second small gear portion 153b is engaged with the second gear 154.
In the embodiment of the present invention, the first large gear portion 152a, the first small gear portion 152b, the second large gear portion 153a, and the second small gear portion 153b refer to: the diameter of the first large gear part 152a is larger than that of the first small gear part 152b, and the diameter of the second large gear part 153a is larger than that of the second small gear part 153 b; since the first gear 151 is meshed with the gear 223 and the first large gear 152a, the first large gear 152a is closer to the distal end face 111 of the powder hopper housing 11 than the first small gear 152b, the second large gear 153a is farther from the distal end face 111 of the powder hopper housing 11 than the second small gear 153b, and the intermediate gear group is farther from the distal end face 111 of the powder hopper housing 11 than the first gear 151 and/or the second gear 152, specifically, the first small gear 152b and the second large gear 153a are farther from the distal end face 111 of the powder hopper housing 11 than the first gear 151 and/or the second gear 152, in the longitudinal direction of the process cartridge C, that is, the longitudinal direction of the photosensitive member 22.
As another implementation of this embodiment, it is also possible that, in the longitudinal direction of the process cartridge C, i.e., the longitudinal direction of the photosensitive member 22, the first large gear portion 152a is farther from the distal end face 111 of the powder hopper housing 11 than the first small gear portion 152b, and the second large gear portion 153a is closer to the distal end face 111 of the powder hopper housing 11 than the second small gear portion 153b, at which time, the intermediate gear set is still farther from the distal end face 111 of the powder hopper housing 11 than the first gear 151 and/or the second gear 152.
As can be seen from the above description, the intermediate gear set includes at least one intermediate gear, and the intermediate gear duplicate gear includes a large gear portion and a small gear portion which are integrally formed, and is used for receiving the driving force of the first gear 151 and transmitting the driving force; the large gear portion is closer to the distal end surface 111 of the powder hopper housing 11 than the small gear portion in the longitudinal direction of the process cartridge C, i.e., the longitudinal direction of the photosensitive member 22, and therefore, the driving force transmission mechanism 15 is more compact as a whole, occupies a smaller space, and is more advantageous for downsizing of the process cartridge C.
[ Driving end caps ]
FIG. 5 is a schematic view showing the overall structure of a driving end cap in the process cartridge according to the present invention; fig. 6 is a sectional view of the process cartridge according to the present invention, taken along the longitudinal direction of the developing member, and viewed from the powder hopper portion toward the waste powder hopper portion.
As shown in fig. 5, the driving end cap 12 includes an end cap body 121 having an inner surface 12a, and a flange 122 extending from an edge of the end cap body to a direction perpendicular to the inner surface, the flange 122 partially forming a semi-enclosed cavity 123 around the inner surface 12a, and the driving force transmission mechanism 15 is accommodated in the semi-enclosed cavity 123 when the driving end cap 12 is mounted to the powder hopper housing 11. As described above, the first gear 151 as a gear of the developing device is engaged with the gear 223, and the relief portion 23 is formed between the gear 223 and the distal end surface 21a of the waste toner hopper housing 21, so that, in the longitudinal direction of the photosensitive member 22, the first gear 151 is also spaced from the distal end surface 21a of the waste toner hopper housing 21, and in order to prevent the first gear 151 from falling off, as shown in fig. 5 and 6, the driving end cap 12 further includes at least one protrusion 124 protruding from the inner surface 12a, and the protrusion 124 protrudes in the same direction as the flange 122.
When the process cartridge C is completely assembled, the projection 124 opposes the first gear 151, as shown in fig. 6, and the movement of the first gear 151 in the direction away from the distal end surface 111 of the powder hopper housing 11 in the longitudinal direction of the photosensitive member 22 is prevented, and therefore, the first gear 151 is stably fixed at a predetermined position, thereby effectively ensuring the engagement of the first gear 151 with the gear 223; similarly, to ensure that the intermediate gear set and the second gear 154 are stably fixed at predetermined positions, the driving cover 12 may be further provided with protrusions corresponding to the intermediate gear set and the second gear 154, respectively.
The first intermediate gear 152 of the driving force transmission mechanism 15 according to the present invention is a duplicate gear, and the large gear portion 152a of the first intermediate gear 152 is closer to the distal end surface 111 of the powder hopper housing 11 than the small gear portion 152b in the longitudinal direction of the photosensitive member 22, and the large gear portion 152a is engaged with the gear 223 provided on the photosensitive member 22 and receives the driving force output from the gear 223, so that the driving force transmission mechanism 15 is more compact as a whole, occupies a smaller space, and is more advantageous for the miniaturization of the process cartridge C.
Claims (3)
1. A processing box which comprises a powder bin and a waste powder bin which are combined with each other, wherein the powder bin comprises a powder bin shell, a first rotating piece which is rotatably arranged in the powder bin shell, and a driving force transmission mechanism which is arranged on one tail end surface of the powder bin shell; the waste powder bin comprises a waste powder bin shell, a second rotating piece and a support, wherein the second rotating piece is rotatably arranged in the waste powder bin shell, the support protrudes from the waste powder bin shell, and the second rotating piece is supported by the support;
the second rotating member includes a power receiving member for receiving the driving force and a power transmitting member for transmitting the driving force at a longitudinal end thereof;
the driving force transmission mechanism comprises a first gear serving as a first rotating member gear and an intermediate gear set for receiving the driving force of the first gear, wherein the first gear is also meshed with the power transmission member;
it is characterized in that the preparation method is characterized in that,
the intermediate gear set includes at least one intermediate gear including a large gear portion and a small gear portion which are integrally formed, the large gear portion being closer to a distal end face of the powder hopper housing than the small gear portion in a length direction of the process cartridge;
the power receiving part is a non-gear, the power transmission part is a gear, and the power receiving part and the power transmission part are positioned at the same tail end of the second rotating part;
a recess is formed between one of the power receiving member, the bracket and the power transmission member and the end face of the waste toner hopper casing closest thereto, so that the power receiving member is protected by the toner hopper and the waste toner hopper casing.
2. A process cartridge according to claim 1, wherein the intermediate gear group includes a first intermediate gear and a second intermediate gear which are engaged with each other, the first intermediate gear being further engaged with the first gear, the second intermediate gear being for transmitting a driving force of the first gear; the first intermediate gear includes a first large gear portion and a first small gear portion which are integrally formed, and the first large gear portion is closer to the distal end face of the powder hopper housing than the first small gear portion in the longitudinal direction of the process cartridge.
3. A process cartridge according to claim 1, wherein the intermediate gear group includes a first intermediate gear and a second intermediate gear which are engaged with each other, the first intermediate gear being further engaged with the first gear, the second intermediate gear being for transmitting a driving force of the first gear; the second intermediate gear includes a second large gear portion and a second small gear portion which are integrally formed, and the second large gear portion is closer to the distal end face of the powder hopper housing than the second small gear portion in the longitudinal direction of the process cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641233.8A CN108535989B (en) | 2018-06-21 | 2018-06-21 | Processing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641233.8A CN108535989B (en) | 2018-06-21 | 2018-06-21 | Processing box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108535989A CN108535989A (en) | 2018-09-14 |
| CN108535989B true CN108535989B (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810641233.8A Active CN108535989B (en) | 2018-06-21 | 2018-06-21 | Processing box |
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| Country | Link |
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| CN (1) | CN108535989B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201607612U (en) * | 2010-02-02 | 2010-10-13 | 珠海天威飞马打印耗材有限公司 | Gear assembly and processing box |
| CN201622435U (en) * | 2010-01-14 | 2010-11-03 | 珠海赛纳科技有限公司 | Powder box |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3323754B2 (en) * | 1996-08-30 | 2002-09-09 | キヤノン株式会社 | Process cartridge and electrophotographic image forming apparatus |
| JP2003280347A (en) * | 2002-03-26 | 2003-10-02 | Canon Inc | Developer replenishment container and image forming apparatus |
| JP3950892B2 (en) * | 2004-01-30 | 2007-08-01 | キヤノン株式会社 | Electrophotographic image forming apparatus |
| CN101320230B (en) * | 2007-06-09 | 2012-09-19 | 珠海天威技术开发有限公司 | Light sensitive drum and processing box |
| JP4905567B2 (en) * | 2010-02-23 | 2012-03-28 | ブラザー工業株式会社 | Developing cartridge and image forming apparatus |
| CN102169316B (en) * | 2011-05-06 | 2012-10-17 | 珠海天威飞马打印耗材有限公司 | Processing box |
| CN202267829U (en) * | 2011-06-10 | 2012-06-06 | 珠海赛纳打印科技股份有限公司 | Processing box |
| JP5942735B2 (en) * | 2012-09-21 | 2016-06-29 | ブラザー工業株式会社 | cartridge |
| CN113296378A (en) * | 2015-02-27 | 2021-08-24 | 佳能株式会社 | Drum unit, cartridge, and coupling member |
| CN205003445U (en) * | 2015-09-23 | 2016-01-27 | 珠海艾派克科技股份有限公司 | Developing box |
| CN106125531A (en) * | 2016-02-26 | 2016-11-16 | 中山诚威科技有限公司 | Handle box |
| CN107239030B (en) * | 2017-07-27 | 2023-10-24 | 中山市泰威影印科技有限公司 | Processing box |
-
2018
- 2018-06-21 CN CN201810641233.8A patent/CN108535989B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201622435U (en) * | 2010-01-14 | 2010-11-03 | 珠海赛纳科技有限公司 | Powder box |
| CN201607612U (en) * | 2010-02-02 | 2010-10-13 | 珠海天威飞马打印耗材有限公司 | Gear assembly and processing box |
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| CN108535989A (en) | 2018-09-14 |
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