CN106325022B - Developing box - Google Patents
Developing box Download PDFInfo
- Publication number
- CN106325022B CN106325022B CN201510342997.3A CN201510342997A CN106325022B CN 106325022 B CN106325022 B CN 106325022B CN 201510342997 A CN201510342997 A CN 201510342997A CN 106325022 B CN106325022 B CN 106325022B
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- Prior art keywords
- power receiving
- power
- developing cartridge
- protrusion
- gear
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- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 241000309551 Arthraxon hispidus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
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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
- G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
- G03G21/1647—Mechanical connection means
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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
- G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
- G03G21/1676—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the developer unit
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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
Abstract
The invention discloses a developing box, comprising: a case body; a developing roller; a developing roller gear; a drive assembly; the drive assembly includes: a power receiving part; a gear member with which a developing roller gear is engaged; and the control part is provided with a power transmission part, the gear part is provided with a meshing part, when the power receiving part stretches out, the power transmission part is meshed with the meshing part, when the power receiving part retracts, the power transmission part is disengaged from the meshing part, and the small-diameter part plays a role of a clutch, so that the power receiving head and the machine driving head can relatively rotate, the meshing state is released, the developing box cannot interfere with the image forming device, and the developing box can be smoothly taken out from the image forming device.
Description
Technical Field
The present invention relates to a developing cartridge, and more particularly, to a driving assembly of a developing 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.
In general, a developing roller is provided on a developing cartridge, and the developing roller is provided with a driving assembly which is engaged with a machine driving head in an image forming apparatus to drive the developing roller to perform a rotational movement to drive the entire developing cartridge to operate.
Chinese patent publication No. CN102419531a discloses a developing cartridge mounted to an image forming apparatus having a disc-shaped mounting position divided into four independent spaces for mounting developing cartridges of 4 colors, respectively, the image forming apparatus having a photosensitive drum, and a drive assembly at one axial end of the developing roller being of a ball-and-socket type engagement structure, in which the mounting disc drives each developing cartridge to rotate relative to the photosensitive drum to develop an electrostatic latent image on the photosensitive drum. The engagement structure is easily disengaged from the drive assembly, particularly during transportation, and the universal joint engagement structure is difficult to engage with the machine drive head, thereby losing the function or making the operation unstable of the drive assembly.
In chinese patent publication No. CN204188951U, a developing cartridge is disclosed, in which a driving component is configured to be controlled to stretch by a pull rope, in a process of engagement and disengagement, the pull rope is controlled to stretch by a ball receiving an external force to control engagement and disengagement of the driving component, however, at an instant when the developing cartridge is disengaged from a machine driving head, the driving component and the machine driving head are in a mutually engaged state, the driving component and the machine driving head cannot rotate relatively, the ball cannot control the pull rope to drive the driving component to retract, so that the driving component and the machine driving head cannot be disengaged, and interference occurs between the driving component and the machine driving head.
Disclosure of Invention
The invention provides a developing box which solves the technical problems that in the prior art, a driving assembly and a machine driving head are in a mutually meshed state, the driving assembly and the machine driving head cannot rotate relatively, a ball cannot control a pull rope to drive the driving assembly to retract, the driving assembly and the machine driving head cannot be separated from meshing, and interference occurs between the driving assembly and the machine driving head.
The technical scheme of the invention is to provide a developing box.
A developing cartridge mounted into an image forming apparatus provided with a machine driving head having a driving protrusion and a photosensitive drum, the developing cartridge being rotatably mounted into the image forming apparatus with respect to the photosensitive drum, the developing cartridge comprising:
a case body;
a developing roller;
a developing roller gear mounted to the developing roller;
the driving component is arranged at one side end of the box body;
the drive assembly includes:
a power receiving member engaged with the machine driving head, the power receiving member being provided with a power receiving protrusion engageable with the driving protrusion to receive a driving force of the driving protrusion;
a gear member, at least a portion of the power receiving portion being telescopically disposed in an inner cavity of the gear member, the developer roller gear being engaged with the gear member;
a control member which receives an external force of the image forming apparatus to control the power receiving member to expand and contract in an axial direction of the developing roller, the power receiving protrusion being engaged with the driving protrusion when the control member controls the power receiving member to extend, the power receiving protrusion being disengaged from the driving protrusion when the control member controls the power receiving member to retract
The power receiving component is provided with a power transmission part, the gear component is provided with a meshing part, when the control component controls the power receiving component to extend, the power transmission part is meshed with the meshing part to receive driving force, and when the control component controls the power receiving component to retract, the power transmission part is separated from the meshing part to interrupt receiving driving force.
The power transmission part is provided with a power transmission protrusion, the power transmission protrusion is provided with a small-diameter part, the engagement part is provided with an engagement hole, when the power transmission part extends out, the power transmission protrusion is engaged with the engagement hole, and when the power transmission part retracts, the small-diameter part of the power transmission protrusion is engaged with the engagement hole.
The power receiving part comprises a power receiving head and a power transmission part, wherein a coupling groove is formed in the power receiving head, a coupling protrusion is arranged on the power transmission part, and the coupling groove is coupled with the coupling protrusion.
The power receiving head is provided with a torsion spring between the power receiving head and the power transmission part, one end of the torsion spring is connected with the power receiving head, and the other end of the torsion spring is connected with the power transmission part.
The control part comprises a sliding block and a trigger rod, wherein the sliding block comprises an inclined surface, and the trigger rod contacts with the inclined surface and pushes the sliding block along the axial direction perpendicular to the developing roller.
The power receiving head is characterized in that the power transmission part is connected with the sliding block through a long pin, one end of the long pin is provided with a large-diameter part, and the other end of the long pin is provided with a clamp spring.
The power transmission part is sleeved with a first elastic element, one end of the first elastic element is abutted against the gear part, and the other end of the first elastic element is abutted against the sliding block.
The sliding block is further provided with a positioning groove, and the trigger rod is installed in the positioning groove.
The trigger rod is provided with a first guide surface, and the first guide surface contacts the image forming device to guide the trigger rod to push the sliding block.
The trigger lever is further provided with a second guide surface) that is held in contact with the image forming apparatus when the developing cartridge is in operation.
Because the small diameter portion acts as a clutch, when the power receiving member is slightly retracted, the small diameter portion is engaged with the gear member, and the engagement of the small diameter portion and the gear member does not allow power to be transmitted, the power transmitting portion can idle with the gear member, the power receiving head can relatively rotate with the machine driving head, the disengagement state is released, and the two can be separated, so that the developing cartridge does not interfere with the image forming apparatus, and can be smoothly taken out from the image forming apparatus.
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 schematic view of a developing cartridge of the present invention;
FIG. 2 is a schematic view of a side end structure of the developing cartridge of the present invention;
FIG. 3 is a schematic view of a process drive assembly according to the present invention;
FIG. 4 is an exploded view of the developer cartridge drive assembly of the present invention;
FIG. 5 is a cross-sectional view of the developer cartridge drive assembly of the present invention;
FIG. 6 is a schematic view of a control portion of the developing cartridge of the present invention;
FIG. 7 is a schematic view showing the structure of the power transmitting portion and the gear portion of the developing cartridge of the present invention;
FIG. 8 is a schematic view of a developer cartridge of the present invention engaged with a machine drive head;
FIG. 9 is a schematic illustration of the developer cartridge of the present invention disengaged from the machine drive head;
Detailed Description
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: the developing device comprises a box body 10, a developing roller 20 supported at the front end of the box body, a gear train and a driving assembly 30 positioned on one side of the box body 10, and a protecting cover 40 for preventing the gear train and the driving assembly 30 from falling off from the box body 10, wherein the driving assembly 30 is arranged to receive driving force from an imaging device to drive the gear train, and the protecting cover 40 limits the gear train and the driving assembly 30 to move along the axial direction of the developing roller 20.
As shown in fig. 2, the side end of the developing cartridge 1 is also fixedly provided with a positioning bracket 50, the positioning bracket 50 is used for positioning the mounting position of the gear train and the driving assembly 30, the gear train comprises a developing roller gear 21 and a powder feeding roller gear 51, the developing roller gear 21 is arranged on the developing roller 20, the developing roller gear 21 receives the driving force from the driving assembly 30 to drive the developing roller 20 to rotate, the powder feeding roller gear 51 is arranged on a powder feeding roller (not shown), the powder feeding roller gear 50 receives the driving force from the driving assembly 30 to drive the powder feeding roller to rotate, the gear train and the driving assembly 30 are arranged between the positioning bracket 50 and the protecting cover 40, so that the axial displacement of the gear train is limited by the gear train and the protecting cover 40, a through hole 41 is formed in the protecting cover 40, and a part of the driving assembly 30 is exposed outside the cartridge 10 through the through hole 41.
The detailed structure of the driving assembly provided by the present invention will be described with reference to fig. 3 to 7.
As shown in fig. 3, the driving assembly 30 includes: the power receiving portion 30a, the gear member 34, and the control member 30b are provided in an inner cavity of the gear member 34, the power receiving member 30a being retractable with respect to an axial direction of the developing roller, and when extended, the gear member 34 is driven to rotate by receiving a driving force of the image forming apparatus, and the control member 30b controls the retraction of the power receiving member 30a by touching a portion of the image forming apparatus.
As shown in fig. 4 to 7, the power receiving part 30a includes a power receiving head 31 and a power transmitting part 33, the power receiving head 31 is provided with a power receiving protrusion 31a and a coupling groove 31b, the power receiving protrusion 31a is engaged with a driving protrusion 100a of the machine driving head 100 to receive a driving force of the image forming apparatus, the power transmitting part 33 is provided with a coupling protrusion 33a, the power transmitting protrusion 33c is engaged with the coupling groove 31b, so that the driving force received by the power receiving head 31 can be transmitted to the power transmitting part 33, the power transmitting protrusion 33c is provided as a power transmitting shaft to transmit the driving force to the gear part 34, the small diameter part 33b is provided thereon, the diameter of the small diameter part 33b is smaller than the diameter of the power transmitting protrusion 33c, the power transmitting protrusion 33c cannot transmit the driving force to the gear part 34 when the small diameter part 33b is engaged with the gear part 34, with this configuration, the power transmitting portion 33 and the gear member 34 are not kept engaged at all times, and only after the power transmitting portion 33 is pushed by the slider 36 to protrude a certain distance in the axial direction of the developer roller (which distance is approximately equal to the distance by which the power receiving head 31 protrudes to engage with the machine driving head 100), the power transmitting portion 33 is engaged with the gear member 34, and considering that the developer cartridge is in a state of being engaged with each other at an instant of disengagement with the machine driving head 100, the machine driving projection 100a and the power receiving projection 31a, since the machine driving head 100 stops rotating, the power receiving member 30a is slightly retracted even if the developer cartridge is rotated against the image forming apparatus to release the pressing of the trigger lever 37, and since the power receiving projection 31a and the machine driving projection 100a are engaged, both cannot be disengaged, the power receiving member 30a cannot be retracted further, the power transmission portion 33 is provided with the small diameter portion 33b has the advantage that: the small diameter portion 33b functions as a clutch, when the power receiving member 30a is slightly retracted, the small diameter portion 33b is then engaged with the gear member 34, and the power transmitting portion 33 is engaged with the gear member 34, and thus the power transmitting portion 33 can be idly rotated with respect to the gear member 34, at this time, the power receiving head 31 can be rotated relatively to the machine driving head 100, the disengaged state can be achieved, the two can be separated, and the power receiving member 30a is pulled back to the retracted position by the slider 36 under the urging force of the first elastic member 35a and the second elastic member 35b, and therefore, the developing cartridge can be smoothly taken out from the image forming apparatus without interfering with the image forming apparatus.
The power receiving head 31 and the power transmission part 33 are also provided with a torsion spring 32, one end of the torsion spring 32 is connected with the power receiving head 31, and the other end is connected with the power transmission part 33, so that the structure is provided, the power receiving head 31 can rotate with the power transmission part 33, and when the power receiving protrusion 31a and the machine driving protrusion 100a are mutually propped and cannot be meshed in the installation process, the power receiving protrusion 31a can rotate and be staggered with the machine driving protrusion 100a, so that the occurrence of the propping-up condition is prevented.
In this embodiment, the power receiving head 31 and the power transmitting portion 33 are provided as two components, and a torsion spring is disposed therebetween, so as to prevent the top dead phenomenon, and those skilled in the art should understand that the two components may be provided as a whole due to the occurrence of the top dead event during the installation process.
As shown in fig. 7, the gear member 34 is internally provided with a hollow cavity for accommodating the power transmission portion 33, an engagement hole 34a is provided at the bottom end of the cavity, the engagement hole 34a is engaged with the power transmission protrusion 33c, specifically, in a spline engagement, the gear member 34 is externally provided with a first tooth portion 34b and a second tooth portion 34c, the first tooth portion 34b is provided to engage with the developing roller gear 21, and the second tooth portion 34c is provided to engage with the powder feeding roller gear 51.
As shown in fig. 6, the control part 30b includes a slider 36 and a trigger lever 37, a positioning groove 36a is provided on the slider 36, a pressing inclined surface 36b, an elastic element mounting hole 36c and a support table 36d are provided on the trigger lever 37, a pressing portion 37a, a first guide surface 37b, a second guide surface 37c are provided on the trigger lever 37, the positioning groove 36a is used for accommodating the pressing portion 37a, the pressing portion 37a pushes the pressing inclined surface 36b to push the slider 36 to slide, the direction in which the pressing portion 37a pushes the pressing inclined surface 36b is perpendicular to the sliding direction of the slider 36, the elastic element mounting hole 36c is used for mounting a second elastic element 35b, and the support table 36d is used for supporting the power transmission portion 33, and when the slider 36 is pressed, the power transmission portion 33 is driven to move, so that the power transmission portion 33 is engaged with the gear part 34. The elastic member mounting hole 36c is used for mounting the second elastic member 35b, the second elastic member 35b applies a spring force to enable the triggering lever 37 to be in a retracted position when the triggering lever 37 is not triggered, the first guiding surface 37b is arranged to be inclined, the developing cartridge rotates relative to the photosensitive drum during operation, the triggering lever 37 touches a part of the image forming device during rotation along with the developing cartridge, with further rotation, a part of the image forming device is forced to push the triggering lever 37 under the action of the first guiding surface 37b, the triggering lever 37 is forced to push, due to the fact that the triggering lever 37 is matched with the sliding block 36, the triggering lever 37 is forced to push and therefore the sliding block 36 slides, the sliding block 36 pushes the power transmission part 33 to extend, the power transmission part 33 extends to drive the power receiving head 31 to extend, the power receiving head 31 extends and therefore to engage with the machine driving head 100, the power transmission part 33c of the power transmission part 33 during extending is engaged with the gear part 34 to drive the whole gear train to rotate, the second guiding surface 37c is arranged to be an arc surface, and the triggering lever 37 is forced to push and when the triggering lever 37 is pushed to push. The structure of the trigger rod 37 and the slide block 36 is adopted to control the expansion and contraction of the power receiving part 30a, compared with the prior art, the structure is more reliable, in addition, the structure is triggered accurately, and the trigger rod receives the external force from the image forming device to push the slide block to move.
As shown in fig. 5, fig. 5 is a sectional view of the assembled driving assembly, the gear member 34 is mounted on the positioning bracket 50, the power receiving member 30a, the gear member 34 is connected with the control member 30b by the long pin 39, one end of the long pin 39 is provided with the large diameter portion 39a to be connected with the power receiving head 31, the other end is connected with the slider 36 by the clip spring 38, the outer surface of the power transmission portion 33 is sleeved with the first elastic element 35a, one end of the first elastic element 35a abuts against the end face of the gear portion, the other end abuts against the slider supporting table 36d, the second elastic element 35b is disposed between the slider and the positioning bracket 50, one end abuts against the positioning bracket 50, the other end is mounted into the elastic element mounting hole, and the second elastic element 35b and the first elastic element 35a exert spring forces to keep the slider 36 in a retracted state when the trigger lever 37 is not pressed. When the slider 36 is pressed by the trigger lever 37, the power receiving member 30a is pushed to extend in the axial direction of the developing roller by the clamp spring 38 and the support table 36d, and when the slider 36 is not pressed, the power receiving member 30a is pulled to retract in the axial direction of the developing roller by the large diameter portion 39a at one end of the long pin 39 under the elastic force of the first elastic element 35a and the second elastic element 35 b.
In the following description of the mounting process of the developing cartridge of the present invention with reference to fig. 8, after the developing cartridge of the present invention is mounted to the mounting position of the image forming apparatus, the power receiving member 30a is in a retracted state not engaged with the machine driving head 100, when the developing cartridge is required to perform a developing operation, the developing cartridge rotates in the image forming apparatus, the trigger lever 37 is gradually pushed by a part of the image forming apparatus as it approaches the developing position, the trigger lever 37 is gradually pushed by the push-out of the slider 36 in the direction of the axis of the developing roller, the slider 36 thus drives the power transmitting portion 33 to extend from the power receiving head 31, and when the power receiving head 31 extends to a position substantially engaged with the machine driving head 100, the power transmitting protrusion 33c of the power transmitting portion 33 is engaged with the gear member 34, at this time the power receiving head 31 receives the driving force of the machine driving head 100 to transmit to the power transmitting portion 33, and the power transmitting portion 33 transmits the driving force to the gear member 34, thereby driving the entire gear train operation, and the developing cartridge starts to perform the developing operation.
When the development work of the developing cartridge is completed, referring to fig. 9, the developing cartridge is further rotated out of the working position, and at the moment of further rotation, the power receiving member 30a is slightly retracted by the urging force of the first elastic member 35a and the second elastic member 35b, at this time, the power transmitting portion 33 is disengaged from the gear member 34 by the small diameter portion 33c, the machine driving head 100 can thus be brought into a relative-rotation disengaged state with the power joint head 31, and then the power receiving member 30a is retracted as the developing cartridge is further rotated until the rotation enters the next development work, and the power receiving member 30a is extended as described above.
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 solutions described in the foregoing embodiments may be modified or some technical features may be replaced by equivalent technical solutions in the specification, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A developing cartridge mounted in an image forming apparatus provided with a machine drive head (100) having a drive projection (100 a) and a photosensitive drum, the developing cartridge being rotatably mounted in the image forming apparatus with respect to the photosensitive drum, characterized in that the developing cartridge comprises:
a case (10);
a developing roller (20);
a developing roller gear (21) mounted to the developing roller (20);
the driving assembly (30) is arranged at one side end of the box body (10);
the drive assembly (30) includes:
a power receiving member (30 a) engaged with the machine driving head (100), the power receiving member (30 a) being provided with a power receiving protrusion (31 a), the power receiving protrusion (31 a) being engageable with the driving protrusion (100 a) to receive a driving force of the driving protrusion (100 a);
a gear member (34), at least a part of the power receiving member (30 a) being telescopically disposed in an inner cavity of the gear member (34), the developing roller gear (21) being engaged with the gear member (34);
a control member (30 b), wherein the control member (30 b) receives an external force of the image forming apparatus to control the power receiving member (30 a) to extend and retract in the axial direction of the developing roller (20), the power receiving protrusion (31 a) is engaged with the driving protrusion (100 a) when the control member (30 b) controls the power receiving member (30 a) to extend, and the power receiving protrusion (31 a) is disengaged from the driving protrusion (100 a) when the control member (30 b) controls the power receiving member (30 a) to retract;
the power receiving component (30 a) is provided with a power transmission part (33), the gear component (34) is provided with an engagement part (34 a), the control component (30 b) controls the power receiving component (30 a) to extend, the power transmission part (33) is engaged with the engagement part (34 a) to receive driving force, and the control component (30 b) controls the power receiving component (30 a) to retract, and the power transmission part (33) is disengaged from the engagement part (34 a) to interrupt receiving driving force.
2. A developing cartridge according to claim 1, wherein said power transmitting portion (33) is provided with a power transmitting projection having a small diameter portion (33 b), said engaging portion (34 a) is provided as an engaging hole, said power transmitting projection is engaged with said engaging hole when said power transmitting portion (33) is extended, and said small diameter portion (33 b) of said power transmitting projection is engaged with said engaging hole when said power transmitting portion (33) is retracted.
3. A developing cartridge according to any one of claims 1-2, wherein said power receiving member (30 a) includes a power receiving head (31) and a power transmitting portion (33), a coupling groove (31 b) is provided on said power receiving head (31), a coupling protrusion (33 a) is provided on said power transmitting portion (33), and said coupling groove (31 b) is coupled with said coupling protrusion (33 a).
4. A developing cartridge according to claim 3, wherein a torsion spring (32) is provided between said power receiving head (31) and said power transmitting portion (33), one end of said torsion spring (32) is connected to said power receiving head (31), and the other end of said torsion spring (32) is connected to said power transmitting portion (33).
5. A developing cartridge according to claim 4, wherein said control member includes a slider (36) and a trigger lever (37), said slider (36) includes a slope (36 b), and said trigger lever (37) contacts said slope (36 b) and pushes said slider (36) in a direction perpendicular to an axial direction of said developing roller.
6. A developing cartridge according to claim 5, wherein said power receiving head (31), said power transmitting portion (33) and said slider (36) are connected by a long pin (39), and said long pin (39) is provided with a large diameter portion (39 a) at one end and a snap spring (38) at the other end.
7. A developing cartridge according to claim 5, wherein said power transmitting portion (33) is provided with a first elastic member (35 a), and one end of said first elastic member (35 a) abuts against said gear member (34) and the other end abuts against said slider (36).
8. A developing cartridge according to claim 5, wherein said slider (36) is further provided with a positioning groove (36 a), and said trigger lever (37) is fitted into said positioning groove (36 a).
9. A developing cartridge according to claim 8, wherein said triggering lever (37) is provided with a first guide surface (37 b), said first guide surface (37 b) contacting said image forming apparatus to guide said triggering lever (37) to push said slider (36).
10. A developing cartridge according to claim 9, wherein said triggering lever (37) is further provided with a second guide surface (37 c), said second guide surface (37 c) being held in contact with said image forming apparatus when said developing cartridge is in operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342997.3A CN106325022B (en) | 2015-06-19 | 2015-06-19 | Developing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342997.3A CN106325022B (en) | 2015-06-19 | 2015-06-19 | Developing box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106325022A CN106325022A (en) | 2017-01-11 |
| CN106325022B true CN106325022B (en) | 2023-10-27 |
Family
ID=57733030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510342997.3A Active CN106325022B (en) | 2015-06-19 | 2015-06-19 | Developing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106325022B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6946004B2 (en) * | 2017-01-12 | 2021-10-06 | キヤノン株式会社 | Drive device and image forming device |
| CN207516735U (en) * | 2017-11-01 | 2018-06-19 | 珠海市拓佳科技有限公司 | A kind of Delevoping cartridge |
| CN208537909U (en) * | 2018-07-18 | 2019-02-22 | 中山市迪迈打印科技有限公司 | Power transmission, revolving part and handle box |
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