CN214375840U - Developing box - Google Patents
Developing box Download PDFInfo
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- CN214375840U CN214375840U CN202120357114.7U CN202120357114U CN214375840U CN 214375840 U CN214375840 U CN 214375840U CN 202120357114 U CN202120357114 U CN 202120357114U CN 214375840 U CN214375840 U CN 214375840U
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- conductive
- developing cartridge
- developing
- conductive member
- contact portion
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Abstract
The utility model discloses a developing box, detachable install in the drum subassembly, and drum subassembly detachably installs at the image forming device who has power supply part, include: the drum assembly includes: a frame body having a first sidewall and a second sidewall separately provided in a first direction; the photosensitive drum is rotatably arranged between the first side wall and the second side wall; the developing cartridge includes: a housing having a first side and a second side separately disposed in a first direction; a developing roller rotatably supported by the housing and rotating along a developing roller shaft extending in a first direction of the housing; a conductive member provided at a first side electrically connectable to the power supply part, a detection member provided at the first side to be detected by a detection unit in the image forming apparatus, the detection member being spaced apart from the conductive member in a second direction perpendicular to the first direction; the conductive member has an excess portion in the first direction beyond the first sidewall, the excess portion having no overlapping portion with the first sidewall as viewed from the first direction.
Description
Technical Field
The utility model relates to a developing box especially relates to a conductive member in developing box.
Background
The related art discloses a developing cartridge that requires power supply to a developing roller and a powder feeding roller when performing a developing work, that can be attached to a drum cartridge so as to be set in a body of an image forming apparatus, and that can have a contact surface of a developing electrode arranged outside a lateral wall of the drum cartridge in a state where the developing cartridge is attached to the drum cartridge. For a better contact of the electrode with the imaging device, the portion of the electrode providing the contact surface may be arranged in a higher position with respect to the lateral wall and extend inwards from the outside of the lateral wall, with a larger design of the contact surface of the electrode. However, in the case where the developing cartridge is attached to the drum cartridge, the lateral wall of the drum cartridge may collide with the developing electrode, causing damage to the electrode or the drum cartridge lateral wall to affect the printing function.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a developing box, the side direction wall that can avoid the drum box probably bumps with the development electrode, in order to reach above-mentioned technological effect, the utility model discloses a realize through following technical scheme:
a developing cartridge detachably mountable to a drum assembly detachably mountable to an image forming apparatus having a power supply member, comprising:
the drum assembly includes:
a frame body having a first sidewall and a second sidewall separately provided in a first direction;
the photosensitive drum is rotatably arranged between the first side wall and the second side wall;
the developing cartridge includes:
a housing having a first side and a second side separately disposed in a first direction;
a developing roller rotatably supported by the housing, the developing roller rotating along a developing roller shaft extending in the first direction of the housing;
a conductive member provided on the first side and electrically connectable to the power supply part,
a detecting member provided on the first side and detectable by a detecting unit in the image forming apparatus, the detecting member being disposed at a distance from the conductive member in a second direction, the second direction being perpendicular to the first direction;
the conductive member has an excess portion exceeding the first side wall in a first direction, the excess portion having no overlapping portion with the first side wall as viewed from the first direction.
Further, the conductive member includes a first contact portion and a second contact portion, the second contact portion being electrically connected to the power supply member, the first contact portion being electrically connected to the developing roller shaft, and transmitting the electric power received by the conductive member to the developing roller.
Further, the second contact portion configures a plate-like structure formed to extend in the first direction, and has a contact side surface in a length direction thereof, the contact side surface being electrically connected to the power supply member.
Further, the detection member has a detection protrusion that is rotatable along a rotation axis parallel to the first direction, and the detection protrusion may touch the detection unit during the rotation, and a portion where the second contact portion does not overlap the detection protrusion as viewed from the second direction.
Further, the second contact portion is configured as a conductive wire including a connection portion electrically connected to the power supply member, and a first end portion and a second end portion extending from the connection portion in a bent manner, and the first end portion and the second end portion are electrically connected to the first contact portion.
Further, the conductive wire is configured as a conductive steel wire.
Further, the conductive member is formed with a first plane, the first plane is perpendicular to the first direction, a first fixing hole and a second fixing hole are recessed from the first plane, the first end is disposed in the first fixing hole, and the second end is disposed in the second fixing hole.
After the technical scheme is adopted, the utility model provides a new conductive member, conductive member surpass the first lateral wall of drum box and be connected with image forming device's power supply part, and surpass the part with first lateral wall does not have the part that overlaps, and conductive member's contact is less, avoids the lateral wall of drum box probably to collide with the development electrode.
Drawings
Fig. 1 is a schematic perspective view of a developing cartridge mounted to a drum set according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a developing cartridge according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a first side of a developing cartridge according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a second side of a developing cartridge according to an embodiment of the present invention;
FIG. 5 is an exploded view of a first side of a developer cartridge according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a conductive member in a developing cartridge according to an embodiment of the present invention;
fig. 7 is a schematic front view of a first side of a developing cartridge according to an embodiment of the present invention;
fig. 8 is a schematic view of a first side front structure of a developing cartridge mounted to a drum set according to an embodiment of the present invention;
fig. 9 is a schematic perspective view of a second developing cartridge according to an embodiment of the present invention mounted in a drum set;
fig. 10 is a schematic perspective view of a first side of a second developing cartridge according to an embodiment of the present invention;
fig. 11 is a schematic perspective view of a conductive member in a second developing cartridge according to an embodiment of the present invention;
fig. 12 is a schematic view of a first side front structure of a second developing cartridge mounted to a drum set according to an embodiment of the present invention.
Detailed Description
In order to make the purpose of the embodiment of the present invention, the technical solution and the technical effect are clearer, and the following description will be made in conjunction with the accompanying drawings to clearly and completely describe the technical solution of the developing cartridge of the present invention. It should be understood that the described embodiment is only a preferred embodiment of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts are included in the protection scope of the present invention.
In the following description, a direction in which the rotation axis of the developing roller extends is referred to as a first direction (may also be referred to as an axial direction), which is also a direction in which the rotation axis of the photosensitive drum extends; the second direction is a front-rear extending direction of the developing cartridge, and the developing roller is located forward in the second direction. The first direction and the second direction cross each other. The third direction is a direction perpendicular to the first direction and the second direction.
Example one
As shown in fig. 1, the drum assembly 200 of the present invention can be installed in or removed from the image forming apparatus along the installation direction. As shown in fig. 1 and 2, the drum assembly 200 includes a frame body provided with an accommodating portion that accommodates the developing cartridge 100 (not shown), the accommodating portion being configured in a substantially hollow shape, a left side of the frame body being provided with a first sidewall 201, a right side thereof being provided with a second sidewall 202, the first sidewall 201 and the second sidewall 202 being provided apart from each other in a first direction and being configured to extend in a second direction. The drum assembly 200 has a photosensitive drum (not numbered) disposed in correspondence with the developing cartridge 100, the photosensitive drum being rotatably disposed between a first sidewall 201 and a second sidewall 202, and an outer circumferential surface of the photosensitive drum being used to form an electrostatic latent image.
As shown in fig. 1 and 2, the developing cartridge 100 of the present invention is detachably mounted in an image forming apparatus, and includes a housing 1 that can be filled with a developer, and the housing 1 includes a first side 11 and a second side 12 that are disposed apart from each other in a first direction. The developing roller 2 is rotatably supported between the first side 11 and the second side 12 of the casing 1, and is rotatable about a first rotation axis extending in the first direction. As shown in fig. 5, the powder feed roller 3 is rotatably supported between the first side 11 and the second side 12 of the housing 1, and is rotatable about a second rotation axis extending in the first direction. As shown in fig. 3, the developing cartridge 100 further includes a drive gear 41, a developing roller gear 42, and a powder feeding roller gear 43, which are engageable with a driving force input member (not shown) in the image forming apparatus to receive a driving force from the image forming apparatus for rotation. The input gear is respectively meshed with the developing roller gear 42 and the powder feeding roller gear 43 to transmit the received driving force to the developing roller 2 and the powder feeding roller 3 respectively so as to drive the developing roller 2 and the powder feeding roller 3 to rotate;
as shown in fig. 4, the first side 11 in the first direction of the developing cartridge 100 is further provided with a detecting member 5, and the detecting member 5 is used for detecting by a detecting unit provided in the image forming apparatus when the developing cartridge 100 is mounted in the image forming apparatus to verify whether the developing cartridge 100 is a new developing cartridge 100, and further identifying the service life of the developing cartridge 100, that is, the number of printable pages of the developing cartridge 100, through the detection of the detecting member 5 by the detecting unit. A holder 6 and a conductive member 7 are provided in the developing cartridge 100 on the same side as the detecting member 5, the conductive member 7 is provided at a distance from the detecting member 5 in the second direction, and the detecting member 5 is located rearward of the conductive member 7 in the second direction. In the present embodiment, the detection member 5 is disposed on the opposite side of the drive gear 41 with respect to the housing 1; of course, alternatively, the detection member 5 may also be arranged on the same side of the drive gear 41.
As shown in fig. 5, the bracket 6 is made of insulating plastic, the bracket 6 includes a developing roller bearing 61 and a powder feeding roller bearing 62, the developing roller 2 forms a first end protruding from the surface of the housing 1 on the first side 11 of the housing 1, the first end is rotatably received in the developing roller bearing 61, the powder feeding roller 3 forms a second end protruding from the surface of the housing 1 on the first side 11 of the housing 1, and the second end is rotatably received in the powder feeding roller bearing 62.
As shown in fig. 5 and 6, the conductive member 7 includes a main body portion 71, a fixing portion 72, a first contact portion 73, and a second contact portion 74, the main body portion 71 extending in the second direction and having a first end and a second end disposed apart from each other in the second direction, the fixing portion 72 being formed extending from the first end in the third direction, the fixing portion 72 being provided with an attachment hole through which the conductive member 7 is attached on the first side 11 of the housing 1 by an attachment means such as a screw, the first contact portion 73 being provided at the second end of the main body portion 71, the first contact portion 73 being for electrical connection with the developing roller shaft, transmitting the power received by the conductive member 7 to the developing roller 2, wherein the developing roller bearing 61 has a connection hole therein through which the conductive member 7 is electrically connected with the developing roller 2. The second contact portion 74 is configured as a plate-shaped structure extending from the surface of the main body portion 71 in the first direction, and the second contact portion 74 has a contact side surface perpendicular to the surface of the main body portion 71 in the longitudinal direction, and the contact side surface can be in contact with a power supply member of the image forming apparatus to be electrically connected, and receives the power output by the power supply member. In order to stabilize the connection between the conductive member 7 and the rotating developing roller 2, a conductive spring is provided between the first contact portion 73 of the conductive member 7 and the developing roller shaft to offset the jumping of the developing roller 2 during rotation, thereby improving the stability of the electrical connection between the conductive member 7 and the developing roller shaft. In the present embodiment, the conductive member 7 is electrically connected to the developing roller 2 through the first contact portion 73, and in other embodiments, the conductive member 7 may further include a third contact portion that may be electrically connected to the powder feed roller 3 through a structure similar to the first contact portion 73, so that the conductive member 7 may be electrically connected to both the developing roller 2 and the powder feed roller 3.
As shown in fig. 7 and 8, the detecting member 5 includes a detecting protrusion 51, the detecting protrusion 51 is rotatable along a rotation axis parallel to the first direction, and the detecting protrusion 51 may touch a detecting unit in the image forming apparatus during the rotation, wherein, as viewed from the second direction, the second contact portion 74 does not overlap with the detecting protrusion 51. The conductive member 7 at least partially protrudes beyond the first sidewall 201 in the first direction and is located outside the first sidewall 201, specifically, the second contact portion 74 at least partially protrudes beyond the first sidewall 201 in the first direction so as to be in contact with the power supply member, and a portion of the protruding portion that does not overlap with the first sidewall 201 as viewed from the first direction prevents the second contact portion 74 from interfering with the first sidewall 201 of the drum assembly 200 when the developing cartridge 100 is mounted to the drum assembly 200 and the developing cartridge 100 from being mounted in a non-position.
Example two
The second embodiment of the present invention is described below, and the difference between the first embodiment and the second embodiment is that the specific structure of the conductive member is different from that of the first embodiment.
As shown in fig. 10 and 11, the conductive member 8 includes a main body portion 81, a fixing portion 82, a first contact portion 83, and a conductive filament 84, the main body portion 81 extending in the second direction and having a first end and a second end disposed apart from each other in the second direction, the fixing portion 82 being formed extending from the first end in the third direction, the fixing portion 82 being provided with an attachment hole, the conductive member 8 being attached to the first side 11 of the housing by an attachment means such as a screw, the first contact portion 83 being provided at the second end of the main body portion 81, the first contact portion 83 being for electrical connection with the developing roller shaft, the power received by the conductive member 8 being transmitted to the developing roller. Wherein the main body 81, the fixing portion 82 and the first contact portion 83 are made of an integrally formed conductive resin, the conductive wire 84 is fixed on the main body 81, the main body 81 forms a first plane, the first plane is perpendicular to the first direction, a fixing hole is concavely formed on the first plane, the conductive wire 84 comprises a conductive portion 841, and a first end portion 842 and a second end portion 843 extending from both ends of the conductive portion 841, the conductive portion 841 is arranged parallel to the first plane, the first end portion 842 and the second end portion 843 extend from the conductive portion 841 in the first direction, wherein the fixing hole is correspondingly provided with a first fixing hole 811 and a second fixing hole 812, the first end portion 842 is arranged in the first fixing hole 811 and is electrically connected with the main body 81, the second end portion 843 is arranged in the second fixing hole 812 and is electrically connected with the main body 81, the conductive portion 841 is used for contacting with a power supply component in the image forming apparatus to receive power output by the power supply component, and transferred to the developing roller 2 through the main body portion 81 and the first contact portion 83, and in particular, the developing roller bearing 61 has a connection hole therein from which the conductive member 8 is electrically connected to the developing roller 2.
As shown in fig. 9 and 12, the detecting member 5 includes a detecting protrusion 51, the detecting protrusion 51 is rotatable along a rotation axis parallel to the first direction, and the detecting protrusion 51 may touch a detecting unit in the image forming apparatus during the rotation, wherein, as viewed from the third direction, there is no overlapping portion of the conductive wire 84 and the detecting protrusion 51. The drum cartridge has a first side wall and a second side wall which are oppositely arranged in a first direction, the developing cartridge 100 is detachably mounted between the first side wall and the second side wall, the conductive member 8 at least partially exceeds the first side wall in the first direction and is positioned at the outer side of the first side wall, specifically, the guiding part 841 at least partially exceeds the first side wall in the first direction so as to be contacted with the power supply part, and the exceeding part is not overlapped with the first side wall when seen from the first direction, so that the second contacting part and the first side wall of the drum cartridge are prevented from interfering when the developing cartridge 100 is mounted to the drum cartridge, and the developing cartridge 100 is not mounted in place.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. A developing cartridge detachably mountable to a drum assembly detachably mountable to an image forming apparatus having a power supply member, comprising:
the drum assembly includes:
a frame body having a first sidewall and a second sidewall separately provided in a first direction;
the photosensitive drum is rotatably arranged between the first side wall and the second side wall;
the developing cartridge includes:
a housing having a first side and a second side separately disposed in a first direction;
a developing roller rotatably supported by the housing, the developing roller rotating along a developing roller shaft extending in the first direction of the housing;
a conductive member provided on the first side and electrically connectable to the power supply member;
a detecting member provided on the first side and detectable by a detecting unit in the image forming apparatus, the detecting member being provided at a distance from the conductive member in a second direction, the second direction being perpendicular to the first direction;
wherein the conductive member has an excess portion exceeding the first side wall in a first direction, and the excess portion has no overlapping portion with the first side wall as viewed from the first direction.
2. A developing cartridge according to claim 1, wherein the conductive member includes a first contact portion and a second contact portion, the second contact portion being electrically connected to the power supply member, the first contact portion being electrically connected to the developing roller shaft, and transmitting the electric power received by the conductive member to the developing roller.
3. A developing cartridge according to claim 2, wherein said second contact portion constitutes a plate-like structure formed extending in the first direction, and has a contact side surface in the longitudinal direction, said contact side surface being electrically connected to said power supply member.
4. A developing cartridge according to claim 1, wherein said detecting member has a detecting projection rotatable along a rotation axis parallel to the first direction and contactable to said detecting unit during rotation, and a portion where the second contact portion does not overlap with the detecting projection as viewed in the second direction.
5. A developing cartridge according to claim 2, wherein said second contact portion is configured as a conductive wire including a conductive portion electrically connected to said power supply member and first and second end portions extending from said conductive portion in a bent manner, said first and second end portions being electrically connected to said first contact portion.
6. A developing cartridge according to claim 5, wherein said conductive wire is configured as a conductive steel wire.
7. A developing cartridge according to claim 5, wherein said conductive member is formed with a first plane, said first plane being disposed perpendicularly to said first direction, a first fixing hole and a second fixing hole being recessed from said first plane, said first end portion being disposed in said first fixing hole, said second end portion being disposed in said second fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120357114.7U CN214375840U (en) | 2021-02-07 | 2021-02-07 | Developing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120357114.7U CN214375840U (en) | 2021-02-07 | 2021-02-07 | Developing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214375840U true CN214375840U (en) | 2021-10-08 |
Family
ID=77964701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120357114.7U Active CN214375840U (en) | 2021-02-07 | 2021-02-07 | Developing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214375840U (en) |
-
2021
- 2021-02-07 CN CN202120357114.7U patent/CN214375840U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |