CN110874045A

CN110874045A - Processing box

Info

Publication number: CN110874045A
Application number: CN201811581045.7A
Authority: CN
Inventors: 胡亮亮; 胡飞; 邱俊亮; 敖仕平
Original assignee: Jiangxi Yibo Electronic Technology Co Ltd
Current assignee: Jiangxi Yibo Electronic Technology Co Ltd
Priority date: 2018-08-29
Filing date: 2018-12-24
Publication date: 2020-03-10
Also published as: CN209514316U; CN209231717U

Abstract

A process cartridge detachably mountable to an image forming apparatus, includes: a housing, a flange part disposed at one side of the housing, and a power receiving part capable of receiving an external driving force and transmitting the same to the flange part; the power receiving part is provided with a power receiving claw for receiving external driving force and a power output coupling part; the power transmission part can be meshed with the power output coupling part to receive driving force and transmit the driving force to the flange part, the control rod is provided with a force bearing end, a pressing end and a rotating fulcrum, the force bearing end and the pressing end are respectively arranged on two sides of the rotating fulcrum, and the pressing end can apply force to the power transmission part to enable the power transmission part to be disengaged from the power receiving part. The technical problem that the power receiving component is clamped and cannot be normally meshed with a driving head in the process of deflection possibly caused by repeated deflection of the power receiving component in the prior art is solved.

Description

Processing box

Technical Field

The present invention relates to a process cartridge detachably mountable in an image forming apparatus.

Background

An image forming apparatus is an image forming apparatus that forms a visible image on a recording medium by the principle of image formation, and includes an electrophotographic copying machine, an electrophotographic printer, an LED printer, and the like. Image forming apparatuses generally include a process cartridge detachably mounted therein, and the process cartridge often needs to be replaced as a consumable.

The existing processing box generally comprises two types, one type is an integral type, and the other type is a split type. The split type process cartridge is generally composed of two parts, i.e., a process cartridge and a photosensitive drum cartridge, which are combined by a specific connection manner. The process cartridge is generally composed of a powder hopper, an agitating frame, a powder feeding roller, a developing roller, a gear train, and the like, to supply the developer to the photosensitive drum cartridge. The photosensitive drum cartridge is generally composed of a waste toner hopper, a cleaning blade, a charging member, a photosensitive drum, and the like, wherein the photosensitive drum receives developer supplied from a developing roller to develop an electrostatic latent image. The imaging principle of the image forming device is as follows: the charging member charges the surface of the photosensitive drum uniformly, the light scanning unit in the electrophotographic apparatus irradiates light onto the surface of the charged photosensitive drum to form an electrostatic latent image, the developing roller transfers developer to the electrostatic latent image region of the surface of the photosensitive drum to form a visible developer image on the surface of the photosensitive drum, the transfer unit in the image forming apparatus transfers the visible developer image to a recording medium, and the visible developer image is fixed to the recording medium by fixing and discharged from the image forming apparatus.

Chinese patent publication No. CN102132219A discloses a process cartridge provided with a power receiving portion of a deflectable gimbal structure for engaging with a drive head in an image forming apparatus to receive a driving force from the image forming apparatus, which has a problem that, when the process cartridge is mounted in the image forming apparatus, the power receiving portion in the process cartridge may be stuck during deflection due to repeated deflection and not be normally engaged with the drive head in the image forming apparatus during engagement and disengagement with the drive head in the image forming apparatus, and at the same time, a pivot center of the gimbal structure may be released during transportation due to excessive vibration and cause the gimbal to fail.

In order to solve the above technical problems, chinese patent publication No. CN205844747U discloses a process cartridge, in which a power receiving portion is disposed to be not tilted and tilted, but the power receiving portion is disposed to be retractable along an axial direction of a photosensitive drum, and the structure can solve the technical problem that a pivot center of a gimbal structure may be loosened and cause a gimbal to fail due to excessive vibration during transportation, but because the power receiving portion in the structure adopts a manner of elastically retracting in the axial direction of the photosensitive drum, in a process of engaging the power receiving portion with a driving head in an image forming apparatus, a problem of unstable driving due to insufficient engagement of the power receiving portion and the driving head due to insufficient elastic force abutting against the power receiving portion is likely to occur.

Disclosure of Invention

The invention aims to provide a driving assembly and a processing box comprising the same, which aim to solve the technical problem that a power receiving part in the prior art can be blocked and cannot be normally engaged with a driving head of an image forming device in the process of deflection due to repeated deflection of the power receiving part.

In order to solve the technical problems, the invention is realized by the following technical scheme:

a process cartridge detachably mountable to an image forming apparatus having a driving head for outputting a driving force, comprising:

a housing;

a flange member provided at one side of the housing;

a power receiving portion capable of transmitting a driving force to the flange member;

the power receiving part is provided with a power receiving claw for receiving the driving force of the driving head and a power output coupling part for transmitting the driving force;

still include control lever and power transmission part, power transmission part can with power output coupling portion meshes in order to receive drive power and transmission drive power extremely flange part, the control lever has stress end, compels pressure end and rotatory fulcrum, stress end with compel pressure end and set up respectively rotatory fulcrum's both sides, it can to compel pressure end power transmission part exert force and make power transmission part with the power receiving portion breaks away from the meshing.

Further, a pressing component is arranged between the control rod and the power transmission component, and the pressing component receives the force of the control rod and presses the power transmission component to move.

Further, the power transmission member is provided with a power transmission portion that transmits driving force to the flange member, and the power transmission portion is configured as a notch recessed from an outer circumference of the power transmission member.

Further, the inner circumferential surface of the flange member is provided with a projection extending in the axial direction of the flange member, and the recess is engageable with the projection.

Further, the power transmission member may be movable in the axial direction of the flange member, and the position of the power receiving portion in the axial direction of the flange member may be kept fixed when the control lever operates the power transmission member to move.

Further, the flange component comprises an adjusting component, a pair of power receiving claws is arranged on the power receiving part, the adjusting component is used for adjusting the orientation of the penetrating direction of an opening formed between the pair of power receiving claws, and the adjusting component is farther away from the flange component than the power transmission component and the pressing component in the axial direction of the flange component.

Further, the power receiving part is provided with an auxiliary adjusted part, and the auxiliary adjusting part is configured to push the power receiving part to rotate in a single direction.

Further, the auxiliary regulation member may operate the power receiving portion to rotate by a certain angle in the rotation direction of the drive head when the regulation member operates the power receiving portion to be blocked by the drive head in the rotation direction of the drive head.

Further, the adjustment member and the auxiliary adjustment member are disposed at different positions in the axial direction of the flange member.

The invention has the beneficial effects that: after the technical scheme is adopted, the power receiving part is engaged with and disengaged from the driving head by moving the processing box, the power receiving part does not need to perform deflection movement relative to the shell, and the technical problem that the power receiving part is blocked and cannot be normally engaged with the driving head in the deflection process possibly caused by repeated deflection of the power receiving part in the prior art is solved.

Description of the drawings:

FIG. 1 is a schematic view of the construction of a process cartridge according to the present invention;

FIG. 2 is an exploded view of a driving assembly according to embodiment 1 of the present invention;

FIG. 3 is another exploded view of the driving assembly according to embodiment 1 of the present invention;

FIG. 4 is a schematic view of another exploded structure of a driving assembly according to embodiment 1 of the present invention;

FIG. 5 is a schematic view, partly in section, of a drive assembly according to embodiment 1 of the invention;

FIG. 6 is a schematic view showing a process of engaging a driving unit with a driving head in an image forming apparatus according to embodiment 1 of the present invention;

FIG. 7 is a schematic view, partly in section, of a drive assembly according to embodiment 2 of the invention;

FIG. 8 is a schematic view showing the construction of a cartridge according to embodiment 3 of the present invention;

fig. 9 is a partial structural schematic view of a drive assembly in embodiment 3 of the invention;

FIG. 10 is an exploded view of a drive unit according to embodiment 3 of the present invention;

FIG. 11 is a partial schematic structural view of a drive unit according to embodiment 4 of the present invention;

FIG. 12 is a schematic view of a structure of a process cartridge in embodiment 5 of the invention;

FIG. 13 is a schematic configuration diagram of a guide rail on the driving side of the image forming apparatus in embodiment 5 of the invention;

FIG. 14 is a schematic view showing the structure of a second side end of a process cartridge in embodiment 5 of the invention;

FIG. 15 is a schematic view of a first side end of a process cartridge in embodiment 5 of the invention;

fig. 16 is a schematic view of a first state in which the process cartridge is mounted in the image forming apparatus in embodiment 5 of the present invention;

fig. 17 is a schematic view of a second state in which the process cartridge is mounted in the image forming apparatus in embodiment 5 of the invention;

fig. 18 is a schematic view of a third state in which the process cartridge is mounted in the image forming apparatus in embodiment 5 of the invention;

fig. 19 is a schematic view of a first state in which the process cartridge is taken out of the image forming apparatus in embodiment 5 of the present invention;

FIG. 20 is an exploded view of the driving side in embodiment 6 of the present invention;

FIG. 21 is an exploded perspective view of a drive unit according to embodiment 6 of the present invention;

FIG. 22 is a partially exploded perspective view of a drive unit in accordance with embodiment 7 of the present invention;

fig. 23 is a schematic view showing a process in which the driving unit is disengaged from the driving head in the image forming apparatus in the first printing termination state of the process cartridge according to embodiment 7 of the present invention;

fig. 24 is a schematic view showing a process in which the driving unit is disengaged from the driving head in the image forming apparatus in the second printing termination state of the process cartridge in embodiment 7 of the present invention.

FIG. 25 is an exploded perspective view of a drive unit according to embodiment 8 of the present invention;

FIG. 26 is a sectional view of a drive assembly in embodiment 8 of the invention;

FIG. 27 is a schematic view showing the engagement of the movable member and the fixed member of the adjustment mechanism of the drive unit in accordance with embodiment 8 of the present invention;

FIG. 28 is a plan view of a fixing member of the adjusting mechanism in embodiment 8 of the invention;

fig. 29 is a schematic view of a first power receiving portion of a process cartridge in a first detached posture with respect to an image forming apparatus driving head in embodiment 8 of the present invention;

FIG. 30 is a schematic view showing a process in which the first power receiving portion of the process cartridge is taken out of the image forming apparatus in the first detached posture in embodiment 8 of the invention;

FIG. 31 is a schematic view of a first power receiving portion of a process cartridge in a second detached posture with respect to a driving head of an image forming apparatus in embodiment 8 of the invention;

FIG. 32 is a schematic view showing a process in which the first power receiving portion of the process cartridge is taken out of the image forming apparatus in the second detached posture in embodiment 8 of the invention;

FIG. 33 is an exploded perspective view of an adjustment mechanism of a drive unit in accordance with embodiment 9 of the present invention;

FIG. 34 is a schematic view showing the engagement of the movable member and the fixed member of the adjusting mechanism in embodiment 9 of the present invention;

fig. 35 is a plan view of a fixing member of an adjusting mechanism in embodiment 9 of the invention.

The specific implementation mode is as follows:

in order to make the object, technical solution and technical effect of the embodiment of the present invention clearer, the following will clearly and completely describe the technical solution of the process cartridge of the present invention with reference to the accompanying drawings.

Example 1

As shown in fig. 1, the process cartridge a according to the present invention includes a frame 1, the frame 1 includes a photosensitive unit frame 1a and a developing unit frame 1b, a photosensitive drum (not shown) is rotatably supported in the photosensitive unit frame 1a, and a developing roller or a magnetic roller (not shown) for developing an electrostatic latent image on the surface of the photosensitive drum is rotatably supported in the developing unit frame 1 b. A first driving assembly 10 is disposed at one side end of the photosensitive unit frame 1a, and a second driving assembly 30 is disposed at one side end of the developing unit frame 1b, wherein the first driving assembly 10 is used for driving the photosensitive drum to rotate, and the second driving assembly 30 is used for driving the developing roller to rotate.

As shown in fig. 2 to 6, the first driving assembly 10 of the present invention includes a first frame 11, a first power receiving assembly B1, and a first power transmitting assembly C1. The second driving assembly 30 comprises a second bracket 31, a second power receiving assembly B2 and a second power transmitting assembly C2. The first power receiving assembly B1 includes a first power receiving portion 12, a first movement supporting portion 13, and a first adjusting member 14. The second power receiving combination B2 includes a second power receiving portion 32, a second movement supporting member 33, and a second regulating member-. The first power transmission combination C1 includes a first power transmission member 15 and a first flange member 16. The second power transmission combination C2 includes the second power transmitting member 35 and the second flange member 36.

The first power receiving unit B1 is mounted on the first bracket 11 and is movable along the first bracket 11 in a direction intersecting the axis of the first flange member 16. The first power receiving portion 12 is provided with a pair of first power receiving claws 1201 for engaging with the driving head 50 in the image forming apparatus to receive the driving force. A card slot 1303 is provided in the first movable support member 13, and an engaging portion 1203 that can be engaged with the card slot 1303 is provided in the first power receiving portion 12. The first adjusting member 14 is mounted on the first moving support member 13, and the first adjusting member 14 is specifically configured as a first torsion spring 14, a mounting seat 1302 is provided on the first moving support member 13, a spiral body portion of the first torsion spring 14 is mounted on the mounting seat 1302, and one free end thereof abuts on the first moving support member 13, and when the first power receiving portion 12 is mounted in the first moving support member 13, the other free end of the first torsion spring 14 is pulled and the other free end abuts on the adjusted portion 1202 of the first power receiving portion 12. The cross-sectional shape of the adjusted portion 1202 is set to a substantially elliptical shape, and the through direction x of the opening formed between the first power receiving claws 1201 when the process cartridge is mounted in the image forming apparatus can be made to face the driving head 50 in the image forming apparatus by abutment of the adjusted portion 1202 on the first power receiving portion 12 with the first adjustment torsion spring 14.

The first bracket 11 is provided with a first sliding guide projection 1101, the first movable supporting member 13 is provided with a first sliding guide groove 1301, and the first sliding guide groove 1301 is matched with the first sliding guide projection 1101, so that the first movable supporting member 13 can move relative to the first flange member 16 in a direction crossing the axis of the first flange member 16 in conjunction with the first power receiving part 12.

The first power receiving part 12 is further provided with a first power output coupling part 1204 and a bottom end protrusion 1205, and the first power transmission member 15 is provided with a first power receiving part coupling part 1501 engaged with the first power output coupling part 1204 and a recess 1502 engaged with the bottom end protrusion 1205. Specifically, the first power transmission coupling portion 1204 is an arm portion extending in the circumferential direction of the first power receiving portion 12, and the base end projection 1205 is a circular arc-shaped projection extending in the axial direction of the first power receiving portion 12. The first power transmission member 15 is further provided with a power transmission portion 1503 and a spherical portion 1504, and the first flange member 16 is provided with a spherical receiving portion 1601 capable of receiving the spherical portion 1504 and a power receiving groove 1602 capable of engaging with the power transmission portion 1503. The ball 1504 snaps into the ball mount 1601 and prevents the ball 1504 from coming out of the ball mount 1601. The above power transmission portion 1503 and the above power receiving groove 1602 have hitherto been formed with a free gap, in other words, a free gap is provided between the first power transmission member 15 and the first flange member 16 so that the first power transmission member 15 can freely rotate at a certain angle relative to the first flange member 16 without rotating the first flange member 16. The engagement of the power transmitting portion 1503 with the power receiving groove 1602 transmits the driving force of the first power receiving portion 12 into the first flange member 16.

As shown in fig. 3-5, when the first power receiving member 12 drives the first power transmitting member 15 and the first flange member 16 to rotate together, the 3 members are coaxial, when the first power receiving member 12 moves a distance relative to the first flange member 16 in a direction intersecting the axis of the first flange member 16, the first power receiving member 12 rotates the first power transmitting member 15 relative to the first flange member 16 by engagement of the bottom end protrusion 1205 of the first power receiving member 12 with the recess 1502, and in particular, the first power transmitting member 15 rotates about the ball mount 1601 of the first flange member 16, the axis L2 of the first power transmitting member 15 is inclined at an angle α relative to the axis L1 of the first flange member 16, at which time the first power output coupling portion 1204 and the first power receiving coupling portion 1204 disengage, the first power receiving member 12 will no longer drive the first power transmitting coupling portion 1501 to rotate when the first power receiving member 12 is rotated and the first power receiving coupling portion 1501 can be moved away from the bottom end protrusion 1501 of the first power receiving member 16.

The process of mounting and dismounting the process cartridge of the present invention in the image forming apparatus will be described with reference to fig. 6, taking the first driving assembly 10 as an example. First, as shown in fig. 6a and b, the mounting direction of the process cartridge is a direction parallel to the direction of arrow X in the drawing, the first regulating member 14 can regulate the penetrating direction of the opening formed between the pair of first power receiving claws 1201 of the first power receiving portion 12 to face the columnar front end of the driving head 50 in the image forming apparatus, and when the pair of first power receiving claws 1201 do not interfere with the power output arm 50a of the driving head 50, the pair of first power receiving claws 1201 directly pass over the front-end columnar portion of the driving head 50, and the driving head 50 directly engages with the first power receiving claws 1201 after being driven by the image forming apparatus. When the pair of first power receiving portions 1201 interfere with the power output arms 50a, the driving head 50 is forced to retract a certain distance by the inclined structure of the outer edges of the first power receiving claws 1201, and the driving head 50 also extends and engages with the first power receiving claws 1201 after being driven by the image forming apparatus. When the process cartridge is removed from the image forming apparatus, as shown in fig. 6b and c, as the process cartridge is removed in the direction opposite to the X direction, the first power receiving part 12 is moved relative to the first flange member 16 with the driving head 50 in the image forming apparatus kept engaged with the first power receiving part 12, and then the first power receiving part 12 is disengaged from the first power transmitting member 15, and the first power receiving part 12 is freely rotatable relative to the first flange member 15, so that even if the driving head 50 interferes with the first power receiving part 12, the process cartridge can be smoothly removed by avoiding the interference state by the free rotation of the first power receiving part 12 by utilizing the characteristic that the first power receiving part 12 is freely rotatable.

In the process cartridge of the present invention, the second driving assembly 30 has the same structure as the first driving assembly 11, except that the first driving assembly 10 and the second driving assembly 30 are respectively engaged with different driving heads of the image forming apparatus and drive different rotating components of the process cartridge to rotate, and the engaging and disengaging processes of the second driving assembly 30 and the first driving assembly 30 with the driving heads of the image forming apparatus are the same during the mounting and dismounting processes of the process cartridge, and thus the description is omitted.

Example 2

As shown in fig. 7, is embodiment 2 of the process cartridge of the present invention, and in this embodiment, the difference is that one biasing member is added to both the first drive assembly 10 and the second drive assembly 30. Fig. 7 shows only a schematic structure of a cross-sectional view of the first drive assembly 10, and the first biasing member 17 is provided between the first power transmission part 15 and the first flange part 16, and when the first power receiving part 12 and the first power transmission part 15 are disengaged, the first biasing member 17 may bias the first power transmission part 15 such that the axis of the first power transmission part 15 is inclined with respect to the axis of the first flange part 16 and is maintained in the inclined state.

In the above embodiments 1 and 2, the process cartridge specifically adopts a mode that the photosensitive drum and the developing roller adopt independent driving components, and is rotatable, the process cartridge can also adopt a mode that a single driving component jointly drives the photosensitive drum and the developing roller to rotate together, when the photosensitive drum and the developing roller are simultaneously driven by the single driving component, a transmission gear is added between the photosensitive drum and the developing roller, and preferably, the first driving component 10 can be adopted to drive the whole process cartridge including the photosensitive drum and the developing roller to operate.

Example 3

As shown in fig. 8 to 10, which is embodiment 3 of the process cartridge of the present invention, in this embodiment, a configuration is specifically adopted in which the first driving assembly 10 is used to drive the entire process cartridge including the photosensitive drum and the developing roller to operate. The first power transmission member 15 is configured to be extendable and retractable in the axial direction of the first flange member 16, and a control mechanism is additionally provided for controlling the extension and retraction of the power transmission member 15 so that the first power transmission member 15 can be extended and retracted with respect to the first power receiving member 12. In the process of the control mechanism controlling the extension and contraction of the first power transmission member 15, the first power receiving portion 12 is not movable in the axial direction of the first flange member 16, in other words, the first power receiving portion 12 is provided so as to be immovable in the axial direction of the first flange member 16 with respect to the first flange member 16, as in the above embodiments, preferably, the first power receiving portion 12 is installed in the first flange member 16 by one of the snap springs 20 as a restricting member, and the restricting member 20 is used to restrict the first power receiving portion 16 so that the first power receiving portion 16 is held fixed in the self rotation axis direction with respect to the flange member 16.

A clutch mechanism is provided between the first power receiving portion 12 and the first power transmitting member 15, specifically, the first power output coupling portion 1204 on the first power receiving portion 12 and the first power receiving portion coupling portion 1501 on the first power transmitting member 15 are engageable with and disengageable from each other in the axial direction of the first flange member 16, the control mechanism includes a control lever 17 and an intermediate urging piece 18, and the control lever 17 is adapted to receive an external force in the image forming apparatus, for example, an urging force of the image forming apparatus mounting rail 70. An elastic member 19 is provided between the first power transmission member 15 and the first flange member 16, the elastic member 19 is fitted over a power transmission portion 1503 protruding from the first power transmission member 15, the first power transmission member 15 is stretchable in the axial direction of the first flange member 15 with respect to the first flange member 16, and the power transmission portion 1503 can transmit a driving force to the first flange member 16. The control lever 17 is mounted on the side cover 41 on the side of the processing box a and is configured to be rotatable around a pivot, when the control lever 17 is rotated, the pressing end 1702 of the control lever 17 near the side of the first driving assembly 10 presses the pressing inclined surface 18a at the top end of the intermediate pressing block 18, the intermediate pressing block 18 further presses the first power transmission member 15 to retract near the first flange member 16, at this time, the first power output coupling portion 1204 and the first power receiving coupling portion 1501 are disengaged, and the first power receiving portion 12 can rotate freely relative to the first flange member 16 without driving the first flange member 16 to rotate.

The process cartridge is provided with a pop-up mechanism (not shown in the drawings) on the lower end side of the lever 17, which can pop up the process cartridge against an inner wall in the image forming apparatus, so that the rail 90 in the image forming apparatus applies a pressing force to the lever 17 when the process cartridge is mounted in the image forming apparatus. When the process cartridge is mounted in the image forming apparatus with the door cover of the image forming apparatus in an open state, the force receiving end 1701 of the control lever 17 on the side away from the first driving unit 10 is pressed by the rail in the image forming apparatus to rotate by a certain angle, the control lever 17 compresses the first power transmission member 15 by the intermediate pressing piece 18 to retract toward the first flange member 16, the first power receiving portion 12 is disengaged from the first power transmission member 15 to rotate freely, the first power receiving portion 12 is adjusted by the first adjusting member 14 such that the penetrating direction of the opening formed between the pair of first power receiving claws 1201 faces the columnar front end of the driving head 50 in the image forming apparatus (see fig. 6), preferably, for ease of mounting, the first regulation member 14 is further from the flange member 16 than the power transmission member 15 and the urging member 18 in the axial direction of the flange member 16. The first power receiving portion 12 is engaged with the driving head 50 in the same manner as in embodiment 1, and then the door cover of the image forming apparatus is closed, the door cover applies a pressing force H as shown in fig. 8 to the process cartridge a, the pressing force H further presses the eject mechanism in the process cartridge to further press the process cartridge downward, and the rail 90 is forced to cancel the pressing force to the control lever 17, the first power transmission member 15 is extended away from the first flange member 16 by the elastic force of the elastic member 19 to engage with the first power receiving portion 12, and the first power transmission member 15 transmits the received driving force to the first flange member 16. When the process cartridge is taken out of the image forming apparatus, the door cover of the image forming apparatus is opened, the pressing force H to the process cartridge is canceled by the door cover, the process cartridge is returned to a state pressed by the rail 90 by the urging force of the urging mechanism, the control lever 17 urges the first power transmission member 15 to retract by the intermediate urging piece 18 so that the first power transmission member 15 is disengaged from the first power receiving portion 12, the first power receiving portion 12 is freely rotatable with respect to the first flange member 16, and thereafter, the process of disengaging the first power receiving portion 12 from the driving head 50 is the same as in embodiment 1.

Example 4

As shown in fig. 11, the present invention is an embodiment 4, which is different from the embodiment 3 in the way of the clutch between the first power receiving portion 12 and the first power transmitting member 15. The present embodiment differs from embodiment 3 in the manner of engagement and disengagement between the first power receiving portion 12 and the first power transmission member 15, in this embodiment, neither the first power receiving portion 12 nor the first power transmission member 15 moves relative to the first flange member 16 in the direction of the axis of the first flange member 16, the first power transmission member 15 is provided with a power receiving coupling block 21 that is movable in the direction perpendicular to the axis of the first flange member 16, and preferably, the power receiving coupling block 21 moves in the radial direction of the first power transmission member 15. The control mechanism controls engagement and disengagement between the first power receiving portion 12 and the first power transmitting member 15 by controlling movement of the power receiving coupling block 21 in the radial direction of the first power transmitting member 15.

Specifically, the control mechanism includes a control lever 17 which is rotatable by receiving the pressing force of the rail in the image forming apparatus and an intermediate pressing member 18 which is pressed by the control lever 17, as in embodiment 3. The first power transmission member 15 is provided with a slide groove 1505 and a fork penetration hole 1506. The intermediate pressing piece 18 is provided with a forking portion 18b and an inclined pressing surface 18b 1. The power receiving coupling block 21 is provided with a power receiving surface 2101, an introduction hole 2102 and a force bearing surface 2103. When mounting, the power receiving coupling block 21 is mounted in the slide groove 1505 along the slide groove 1505, and the fork penetration portion 18b of the intermediate pressing block 18 penetrates the fork penetration hole 1506 and the introduction hole 2102 in this order. An elastic member (not shown) is provided between the outer side surface of the power receiving coupling block 21 adjacent to the first flange part 16 and the inner circumferential surface of the first flange part 16. When the process cartridge is mounted in the image forming apparatus, the rail 90 in the image forming apparatus presses the control lever 17, the control lever 17 presses the intermediate pressing piece 18 to retract in a direction to approach the first flange part 16, the inclined pressing face 18b1 of the intermediate pressing piece 18 presses the force receiving face 2103 on the power receiving coupling piece 21 so that the power receiving coupling piece 21 moves radially outward in the radial direction of the first power transmitting part 15 against the elastic force of the elastic member provided between the power receiving coupling piece 21 and the first flange part 16, the power receiving face 2101 on the power receiving coupling piece 21 is disengaged from the power output coupling part 1204 on the first power receiving part 12, the first power receiving part 12 is freely rotatable with respect to the first flange part 16, the first power receiving part 12 is regulated by the first regulating part 14 so that the penetrating direction of the opening formed between the pair of first power receiving claws faces the columnar front end of the driving head 50 in the image forming apparatus (see fig. 6) The first power receiving portion 12 is engaged with the driving head 50 in the same manner as in embodiment 1, and then the door cover of the image forming apparatus is closed, the door cover applies a downward force H as shown in fig. 8 to the process cartridge a, the downward force H further presses the eject mechanism in the process cartridge to further press the process cartridge downward, so that the rail 90 is forced to cancel the pressing force to the control lever 17, the intermediate pressing block 18 releases the pressing force to the power receiving coupling block 21, the power receiving coupling block 21 pushes the inclined pressing surface 18b1 to move away from the first flange part 16 by the force receiving surface 2103 under the elastic force of the elastic member provided between the power receiving coupling block 21 and the first flange part 16, the first power receiving coupling block 21 moves toward the central axis direction of the first power transmitting part 15, and finally, the power receiving surface 2101 is engaged with the first power output coupling portion 1204, the first power transmitting member 15 transmits the received driving force to the first flange member 16. When the process cartridge is taken out of the image forming apparatus, the door cover of the image forming apparatus is opened, the pressing force H to the process cartridge is canceled by the door cover, the process cartridge returns to a state pressed by the rail 90 by the urging force of the eject mechanism, the control lever 17 presses the power receiving coupling block 21 out of engagement with the first power receiving portion 12 via the intermediate pressing block 18, the first power receiving portion 12 is freely rotatable with respect to the first flange member 16, and thereafter, the process of disengaging the first power receiving portion 12 from the driving head 50 is the same as in embodiment 1. Alternatively, the control mechanism may control the opening and closing of the first engagement portion on the first power receiving portion 12 in the radial direction.

Example 5

In the above embodiments, in order for the user to mount and remove the process cartridge better, as shown in fig. 12 to 19, embodiment 5 provided for the present invention is different from the above embodiments in that the cartridge body is translatable relative to the image forming apparatus guide rails when the process cartridge a is mounted to and removed from the image forming apparatus. FIG. 12 is a schematic view showing the structure of a process cartridge A in the present embodiment; as shown in fig. 13, a schematic view of the structure of the guide rail 100 on the driving side 105 of the image forming apparatus in the present embodiment is shown. The process cartridge a includes: a housing 51 in which developer is accommodated; first and second side ends 52, 53 located on both sides of the housing 51 in the longitudinal direction thereof, and having

guide projections

52a, 53a formed thereon, respectively, the

guide projections

52a, 53a guiding the first and second side ends 52, 53a, respectively, when the process cartridge a is mounted in and removed from the image forming apparatus; and a power receiving part 54 provided on the second side end 53 of the housing 51 to be rotated by receiving a driving force transmitted from the image forming apparatus. The guide rail 100 of the image forming apparatus driving side 105 includes a guide groove 101, an upper rail 102, a lower rail 103, and an image forming apparatus driving head 104, wherein, when the process cartridge a is mounted in the image forming apparatus, the guide projection 53a on the second side end 53 of the process cartridge a slides along the guide groove 101 and is restricted by the upper rail 102 and the lower rail 103, so that the process cartridge a can only slide along the guide groove 101 until the power receiving portion 54 engages with the image forming apparatus driving head 104. It should be noted that, in the embodiment, only the guide rail 100 of the driving side 105 of the image forming apparatus is shown, the image forming apparatus is also provided with a guide rail on the conductive side opposite to the driving side 105, and when the guide projection 53a of the second side end 53 slides along the guide rail 100 of the driving side 105, the guide projection 52a of the first side end 52 also slides along the conductive side guide rail, so that the process cartridge a can be smoothly loaded and unloaded.

As shown in fig. 14, it is a schematic view of the second side 53 of the cartridge a in this embodiment. The second side end 53 further includes a bracket 55, the power receiving portion 54 is mounted on the bracket 55, and a sliding groove 55a is formed on the bracket 55, and the power receiving portion 55 is translatable along the sliding groove 55a in a direction perpendicular to its rotation axis. The bracket 55 is further formed with a second side end protrusion 56, preferably a second side end protrusion 56 fixedly provided on the second side end, the second side end protrusion 56 including a first guide surface 56a and a second guide surface 56b, when the process cartridge a is mounted in and removed from the image forming apparatus, the second side end projection 56 can abut on the second side wall of the image forming apparatus driving side 105 to integrally translate the process cartridge a in its own longitudinal direction, wherein the first guide surface 56a guides the second side end projection 56 to abut against the second side wall of the image forming apparatus driving side 105 when the process cartridge a is mounted in the image forming apparatus, and the second guide surface 56b guides the second side end projection 56 to abut against the second side wall of the image forming apparatus driving side 105 when the process cartridge a is removed from the image forming apparatus, preferably, to facilitate smooth attachment and detachment of the process cartridge, the first guide surface 56a and the second guide surface 56b are provided in the following manner: the distance between the first guide surface 56a and the second guide surface 56b gradually decreases in a direction gradually away from the second side end 53, measured in a direction crossing the longitudinal direction of the process cartridge. In addition, in order to make the integral translation of the process cartridge a in the image forming apparatus smoother, the second side end 53 is further provided with a second protruding portion 57 and a third protruding portion 58, and the structure and function of the second protruding portion 57 and the third protruding portion 58 are substantially the same as those of the second side end protrusion 56, and thus the description thereof is omitted.

As shown in fig. 15, a schematic view of the first side end 52 of the process cartridge a in this embodiment is shown. The first side end 52 is formed with a first side end protrusion, a first mounting hole 60 and a second mounting hole 61, and preferably, the first side end protrusion includes a first column portion 62 and a second column portion 63, the first column portion 62 is mounted in the first mounting hole 60 together with a first elastic member 64, the second column portion 63 is mounted in the second mounting hole 61 together with a second elastic member 65, and the first column portion 62 and the second column portion 63 are respectively retractable in the longitudinal direction of the process cartridge a along the first mounting hole 60 and the second mounting hole 61, wherein the first column portion 62 and the second column portion 63 have the same structure, function and mounting manner, and only the first column portion 62 is described in this embodiment. The first column part 62 is a hollow column-shaped rod-shaped member, one end of the first elastic member 64 abuts against the hollow interior of the first column part 62, and the other end abuts against the first mounting hole 60, so that the first column part 62 can stretch and contract along the first mounting hole 60 under the action of the first elastic member 64; a hook 62a is formed on the first column portion 62, and the hook 62a is locked in a groove (not shown) formed in the first mounting hole 60 to prevent the first column portion 62 from being removed from the first mounting hole 60; the first columnar portion 62 is also formed with a first inclined surface 62b and a second inclined surface 62c, and the first inclined surface 62b and the second inclined surface 62b respectively guide the first columnar portion 62 to abut against the side wall on the conductive side of the image forming apparatus when the process cartridge a is mounted in and removed from the image forming apparatus.

As shown in fig. 16 to 18, there are schematic views of the process of mounting the process cartridge a into the image forming apparatus in this embodiment. As shown in fig. 16, a schematic view of a first state in which the process cartridge a is mounted to the image forming apparatus in the mounting direction X. At this time, the second side end projection 56 provided on the second side end 53 of the process cartridge a abuts against the side wall of the driving side 105, specifically, the first guide surface 56a of the second side end projection 56 contacts the side wall of the driving side 105, thereby forcing the process cartridge a as a whole to translate in the M direction parallel to its longitudinal direction close to the conductive side 106, and accordingly, the first columnar portion 62 and the second columnar portion 63 provided on the first side end 52 of the process cartridge a are guided by the first inclined surfaces 62b, 62c to abut against the side wall of the conductive side 106, respectively, and when the process cartridge a as a whole translates in the M direction, the first columnar portion 62 and the second columnar portion 63 are pressed and contracted by the side wall of the conductive side 106, so that the process cartridge a is smoothly placed on the guide rail of the image forming apparatus. As shown in fig. 17, a second state diagram in which the process cartridge a is mounted to the image forming apparatus in the mounting direction X is shown. The image forming apparatus driving side 105 in the present embodiment is formed with a coupling portion 105a that accommodates the second side end protrusion 56, and specifically, the coupling portion 105a is configured as an inner recess formed on the driving side 105. At this time, the entirety of the process cartridge a slides along the guide rail of the image forming apparatus, the second side end projection 56 of the process cartridge a always abuts against the side wall of the driving side 105, and the first columnar portion 62 and the second columnar portion 63 are kept in the contracted state, so that the power receiving portion 54 of the process cartridge a does not interfere with the image forming apparatus driving head 104. As shown in fig. 18, a third state diagram in which the process cartridge a is mounted into the image forming apparatus in the mounting direction X is shown. At this time, the power receiving portion of the process cartridge a moves to a position opposed to the image forming apparatus driving head 104, and the second side end projection 56 falls into the engaging portion 105a, and specifically, the first columnar portion 62 and the second columnar portion 63 push the side wall of the conductive side 106 under the elastic potential energy accumulated by the elastic member to force the process cartridge a to be entirely translated in the N direction opposite to the M direction, and the second side end projection 56 is then engaged with the engaging portion 105a, and the power receiving portion 54 is engaged with the image forming apparatus driving head 104. It should be noted that when the second side end protrusion 56 is engaged with the engaging portion 105a, the second guide surface 56b of the second side end protrusion 56 protrudes from the engaging portion 105a and contacts with the side wall of the engaging portion 105a, and specifically, the height H2 of the second guide surface 56b is greater than the height H1 of the engaging portion 105a as measured in the longitudinal direction of the process cartridge a. As described above, the process cartridge a is smoothly mounted into the image forming apparatus.

When the process cartridge a is taken out from the image forming apparatus in the Y direction opposite to the mounting direction X, as shown in fig. 19, the second guide surface 56b of the second side end projection 56 of the process cartridge a contacts the side wall of the engaging portion 105a, the second side end projection 56 is guided by the second guide surface 56b to slide into abutment with the side wall of the driving side 105, the process cartridge a as a whole is translated in the M direction, the power receiving portion 54 of the process cartridge a is disengaged from the image forming apparatus driving head 104, and the process cartridge a can be smoothly taken out from the image forming apparatus. The specific disassembly process is substantially opposite to the installation process, and thus, the detailed description is omitted.

Example 6

Next, embodiment 6 of the present invention will be described, and as shown in fig. 20, embodiment 6 of the present invention is provided, and this embodiment is different from embodiment 3 in the moving manner of the control lever. As shown in fig. 20 and 21, the lever 17 has a rotation fulcrum 1703, and the side cover 22 on the driving side of the process cartridge is provided with a rotation support base 2202 and a recessed portion 2201, the recessed portion 2201 being recessed from the side cover 22 toward the inside of the process cartridge in the longitudinal direction of the process cartridge. The lever 17 and the support base 2202 are fixed by a pin (not shown in the figure), and the lever is rotatable in the longitudinal direction of the process cartridge. The force-bearing end 1701 of the control rod 17 may likewise receive a depressing force from the door cover of the imaging device, which may cause the force-bearing end 1701 of the control rod 17 to move along the recess 2201. The control mechanism in this embodiment, in the case where the process cartridge is not mounted in the image forming apparatus, the force receiving end 1701 of the lever 17 is tilted up by the elastic force of the spring 25 provided between the lever 17 and the edge cover 22, the pressing end 1702 is pressed down, and the first power transmission member 15 is controlled to retract out of engagement with the power receiving portion 12 by the pressing piece 18 after the pressing end 1702 is pressed down. When the process cartridge is mounted in the image forming apparatus, the force receiving end 1701 of the lever 17 is retracted along the recessed portion 2201 by being pressed by the door cover in the image forming apparatus, the pressing end 1702 is tilted up to cancel the pressing of the pressing piece 18, and the first power transmission member 15 is axially extended under the elastic force of the elastic member 19 to engage with the first power output coupling portion 1204. When the door is opened, the door cancels the pressing of the control rod 17, the control rod 17 restores the pressing of the first power transmission member 15 under the elastic force of the spring 25 so that the first power transmission member 15 is disengaged from the first power receiving portion 12, and the first power receiving portion 12 can rotate freely and is disengaged from the driving head in the image forming apparatus under the action of the first regulating member 14.

Preferably, in this embodiment, the first power receiving portion 12 is embodied in 3 parts, the first part 1205 includes a first power receiving claw 1201, the third part 1207 includes a first power output coupling 1204, and a second part 1206 connecting the first part 1205 and the third part 1207, the first part 1205, the second part 1206, and the third part 1207 constitute an oldham coupling structure, and the first part 1205 is movable relative to the third part 1207 in a direction crossing the rotational axis of the flange member 16. An adjusted portion 1202 is provided on the first portion 1205 to facilitate resetting of the first power receiving pawl 1201. In this embodiment, the first power transmission component 1503 is provided as a notch recessed from the outer circumference of the first power transmission component 15, the inner circumference of the flange component 16 is provided with a protrusion 1603 extending along the axial direction of the flange, and the notch 1503 and the protrusion 1603 are matched to transmit the driving force and guide the power transmission component 15 to move axially. In addition, the power receiving portion 12 is provided in 3 parts in the present embodiment in order to further improve the smoothness of the process cartridge taken out from the image forming apparatus by utilizing the movement of the first part including the first power receiving claw 1201 during the process cartridge taking out.

Example 7

Next, embodiment 7 of the present invention will be described, and as shown in fig. 22, in this embodiment, an auxiliary adjusting member 24 is provided on the first bracket 11, and an auxiliary adjusted member 1209 which can be brought into contact with the auxiliary adjusting member 24 is provided on the first power receiving portion 12, and preferably, the auxiliary adjusting member 24 is configured as a magnetic block.

As shown in fig. 23 and 24, the rotation direction of the driving head 104 is defined as a counterclockwise direction s, and the driving head 104 in the image forming apparatus is not rotated any more after the printing is stopped during the process cartridge is taken out, and since the first power receiving pawl 1201 is in meshing contact with the power output arm 104a of the driving head 104 at this time, it restricts the rotation of the first power receiving portion 12 in the direction blocked by the power output arm 140a, specifically, restricts the rotation of the first power receiving portion 12 in the clockwise direction in fig. 23a and 24 a.

When opening the door cover of the image forming apparatus, since the first power receiving portion 12 is in a freely rotatable state, the first power receiving claw 1201 of the first power receiving portion 12 may appear as the first position in fig. 23a and the second position in fig. 24 a. When the first power receiving portion 12 is in the first position in fig. 23a, the regulated portion 1202 has a highest point in the radial direction near a contact point P of one elastic leg 1401 of the first regulation member 14 and the regulated member 1202, which is at a position downstream of the contact point P in the rotational direction of the driving head 104. That is, the apex of the long side of the substantially elliptical adjusted part 1202 near the contact point p is located downstream of the contact point p in the rotational direction of the driving head 104, and therefore, the first adjusting member 14 can normally act on the adjusted part 1202 to rotate the first power receiving part 12 counterclockwise in 23a to the position in fig. 23b, in which state the first power receiving pawl 1201 can be smoothly disengaged from the driving head 104. When the first power receiving part 12 is in the second position in fig. 24a, the highest point on the regulated part 1202 adjacent to the contact point p of the regulated part 1202 and the first regulating member 14 coincides with the contact point p or is upstream of the contact point p in the rotational direction of the driving head 104, at this time, the elastic leg 1401 of the first regulating member 14 has a tendency to force the first power receiving part 12 to rotate in the clockwise direction opposite to the direction s, but the clockwise direction rotation tendency is blocked by the power output arm 104a of the driving head 104, and in this state, the user needs to shake the lower process cartridge out of this state to take out the process cartridge from the image forming apparatus. Preferably, the auxiliary adjusting member 24 and the auxiliary adjusted part 1209 provided on the first power receiving part 12 added in this embodiment can further cause the first power receiving part 12 to rotate a certain angle in the counterclockwise direction so that the power receiving part moves to the first position in fig. 23a, specifically, when the power receiving part 12 is at the second position, the auxiliary adjusted part 1209 will be acted on by the auxiliary adjusting member 24 to continue to move a certain angle in the counterclockwise direction s, and finally the first power receiving part 12 will move from the second position in fig. 24a to the first position in fig. 23a, and then the first power receiving part 12 rotates under the action of the first adjusting member 14 and disengages from the driving head 104, and the process cartridge can be taken out smoothly. Preferably, in the present embodiment, the auxiliary adjusting member 24 and the auxiliary adjusted part 1209 are configured as two magnets which can repel each other, and when the first power receiving part 12 is at the second position, the magnetic repulsive force between the auxiliary adjusting member 24 and the auxiliary adjusted part 1209 is used to push the first power receiving part 12 to continue rotating in the counterclockwise direction by a certain angle.

Example 8

As shown in fig. 25 to 32, embodiment 8 of the present invention is provided. This embodiment is different from embodiment 6 in that an adjusting mechanism for adjusting the penetrating direction of the opening formed between the first power receiving claws 1201 is different, but the adjusting mechanism functions in the same manner as in embodiment 6, and each of them causes the penetrating direction of the opening formed between the first power receiving claws 1201 to face the image forming apparatus driving head when the process cartridge is mounted in the image forming apparatus, and adjusts the first power receiving portion 12 to freely rotate by an angle about its own axis direction to smoothly disengage from the image forming apparatus driving head when the process cartridge is removed from the image forming apparatus.

Fig. 25 is an exploded view of the driving assembly of the present embodiment; fig. 26 is a sectional view of the drive unit in this embodiment. In this embodiment, the same structure as that in embodiment 6 will not be described again, and only the technical features different from those in embodiment 6 will be briefly described. The adjusting mechanism 29 in this embodiment specifically includes the elastic member 26, the movable member 27, and the fixed member 28, the adjusting mechanism 29 is accommodated in the first flange member 16, is disposed between the support portion 1604 of the first flange member 16 and the first bracket 11, and is fitted around the first power receiving portion 12, and the support portion 1604 supports the fixed member 28 to prevent the fixed member 28 from moving close to the flange member 16 in the axial direction of the flange member. Wherein, the elastic element 26 is arranged between the first bracket 11 and the movable element 27, one end of the elastic element 26 abuts against the first bracket 11, the other end abuts against the upper end surface of the movable element 27, the movable element 27 can extend and contract along the axial direction of the first power receiving part 12 under the action of the elastic element 26, and the elastic element 26 is specifically constructed as a spring in the embodiment; the movable member 27 is supported by the fixed member 28, wherein the insertion portion 2701 of the movable member 27 is inserted into the shaft hole 2802 of the fixed member 28, the plate portion 2703 of the movable member 27 abuts on the rail 2803 of the fixed member 28, and the insertion portion 2701 of the movable member 27 is formed with an opening 2702, the guide rib 1210 formed on the first power receiving portion 12 is inserted into the opening 2702, the guide rib 1210 extends in the direction of the rotational axis of the first power receiving portion, the first power receiving portion 12 rotates the movable member 27 by the guide rib 1210 engaging with the opening 2702 and the movable member 27 is movable relative to the first power receiving portion 12 in the direction of the axis of the first power receiving portion 12, the movable member 27 receives the driving force transmitted from the first power receiving portion 12 to rotate about the axis of the first power receiving portion 12, and is extended and contracted in the axial direction of the first power receiving portion 12 by the plate-like portion 2703 sliding on the rail 2803 and by the elastic member 26; a groove 2801 is formed on the side surface of the holder 28, a restricting part 1102 that protrudes downward in the axial direction of the first power receiving part 12 is formed on the bracket 11, the restricting part 1102 is inserted into the groove 2801 to prevent the holder 28 from rotating around the axis of the first power receiving part 12, and the holder 28 is restricted from moving upward in the axial direction of the first power receiving part 12 by the tight fit between the restricting part 1102 and the groove 2801, the lower end of the holder 28 is supported by a support part 1604 provided in the first flange part 16, and thus the holder 28 is fixed to the support part 1604 by the restricting part 1102 of the bracket 11. Preferably, the power receiving portion is formed with a guide rib, the moving member is formed with an opening that fits the guide rib, and the guide rib extends in the direction of the rotation axis of the power receiving portion. In summary, in the present embodiment, the movable member 27 of the adjustment mechanism 29 rotates along with the rotation of the first power receiving portion 12, and extends and contracts along the axial direction of the first power receiving portion 12 by the plate-shaped portion 2703 of the movable member 27 sliding along the rail 2803 of the fixing member 28, so as to achieve the engagement and disengagement with the driving head of the image forming apparatus when the first power receiving portion 12 is adjusted in loading and unloading, which will be described later.

Fig. 27 is a schematic view of the movable member 27 and the fixed member 28 of the adjusting mechanism 29 in this embodiment; fig. 28 is a top view of the fixing member 28 in this embodiment. In this embodiment, the rails 2803 of the fixing member 28 are a pair of circular rails symmetrically arranged at intervals, and each of the circular rails includes a downhill rail 2804 and an uphill rail 2805, where the downhill rail 2804 and the uphill rail 2805 have a certain inclination in the axial direction of the first power receiving portion 12, and an included angle θ 1 between an upper end 2804a and a lower end 2804b of the downhill rail 2804 is greater than 90 degrees in this embodiment, in other words, an angle of view of an area formed by the downhill rail 2804 is greater than 90 degrees. In the present embodiment, the movable member 27 rotates together with the first power receiving portion 12, and the fixed member 28 is fixed to the first flange member 16, so that the penetrating direction of the opening formed between the first power receiving claws 1201 of the first power receiving portion 12 can be controlled by controlling the relative positions of the movable member 27 and the fixed member 28, specifically, when the plate-like portion 2703 of the movable member 27 slides along the rail 2803 of the fixed member 28, the plate-like portion 2703 can be located at any position of the downhill rail 2804, the uphill rail 2805, the highest point 2806 of the rail 2803, or the lowest point 2807 of the rail 2803, wherein when the plate-like portion 2703 is located on the downhill rail 2804, the penetrating direction of the opening formed between the first power receiving claws 1201 of the first power receiving portion 12 does not face the image forming apparatus driving head, and the first power receiving portion 12 interfere with each other; when the plate portion 2703 is located on the uphill rail 2805, the highest point 2806 of the rail 2803, or the lowest point 2807 of the rail 2803, the penetrating direction of the opening formed between the first power receiving claws 1201 faces the image forming apparatus driving head without interfering with the first power receiving portion 12. That is, when the plate portion 2703 of the movable member 27 is located on the ascending rail 2805 of the fixed member 28, the highest point 2806 of the rail 2803, or the lowest point 2807 of the rail 2803, the function of the adjustment member 29 can be realized simply by disposing the first power receiving portion 12 so that the penetrating direction of the opening formed between the first power receiving claws 1201 faces the image forming apparatus driving head. Therefore, before the process cartridge is not mounted in the image forming apparatus, the plate portion 2703 of the movable member 27 is pushed to stay at the highest point 2806 or the lowest point 2807 of the rail 2803 of the fixed member 28, the penetrating direction of the opening formed between the first power receiving claws 1201 of the first power receiving portion 12 faces the image forming apparatus driving head, the first power receiving portion 12 and the image forming apparatus driving head do not interfere with each other, and the process cartridge can be smoothly mounted in the image forming apparatus.

How the process cartridge is taken out from the image forming apparatus in this embodiment will be specifically described below with reference to fig. 25 to 30. The image forming apparatus driving head 50 includes a power output arm 50a and a bottom end cylinder 50b, and the driving head 50 can be rotated by a motor in the image forming apparatus. When the process cartridge is mounted in the image forming apparatus, the first power receiving portion 12 is engaged with the image forming apparatus driving head 50 to be rotated, and therefore, when the image forming apparatus driving head 50 stops rotating, the first power receiving portion 12 is stopped, and since the rotational stop position of the image forming apparatus driving head 50 is not controllable, the rotational stop position of the first power receiving portion 12 is arbitrary.

As shown in fig. 29 and 30, the first power receiving portion 12 is disengaged from the image forming apparatus driving head in the first detached posture in which the process cartridge is taken out from the image forming apparatus in the X direction. In the first detachment posture, the first power receiving portion 12 is disengaged from the driving head 50 in a posture in which the first power receiving claw 1201 is not pressed by the base end cylinder 50b of the image forming apparatus driving head 50. When the process cartridge is taken out from the image forming apparatus in the X direction, the control lever 17 presses the intermediate pressing piece 18 to extend and contract to control the engagement and disengagement between the first power receiving portion 12 and the first power transmission member 15, the first power receiving portion 12 can freely rotate about its own axis, and at this time, the plate-shaped portion 2703 of the movable member 27 is located on the upward slope rail 2805 of the fixed member 28 or the highest point 2806 of the rail 2803 or the lowest point 2807 of the rail 2803, the bottom end column 50b of the image forming apparatus driving head 50 does not interfere with the first power receiving claw 1201 of the first power receiving portion 12, and the first power receiving portion 12 can smoothly disengage from the image forming apparatus driving head 50. It should be noted that, when the plate portion 2703 is located on the ascending rail 2805, since the first power receiving portion 12 rotates in the counterclockwise direction, and the plate portion 2703 slides from the ascending rail 2805 to the lowest point 2807 of the rail 2803, the first power receiving portion 12 rotates in the clockwise direction, so that the first power receiving portion 12 is interfered by the image forming apparatus driving head 50, and the plate portion 2703 stays on the ascending rail 2805 at all times.

As shown in fig. 31 and 32, the first power receiving portion 12 is disengaged from the image forming apparatus driving head in the second detached posture. In the second detachment posture, the first power receiving portion 12 is disengaged from the driving head 50 in a posture in which the first power receiving claw 1201 is pressed by the base end cylinder 50b of the image forming apparatus driving head 50. When the process cartridge is taken out from the image forming apparatus in the X direction, the lever 17 presses the intermediate pressing piece 18 to control the clutch between the first power receiving part 12 and the first power transmitting member 15, the first power receiving part 12 is freely rotatable about its own axis, and at this time, the plate-like part 2703 of the movable member 27 is located on the downhill rail 2804 of the fixed member 28, since the movable member 27 presses the elastic member in the process before the plate-like part 2703 enters the downhill rail 2804 from the rail 2803, when the plate-like part 2703 enters the downhill rail 2804, the elastic potential energy accumulated in the elastic member 26 presses the movable member 27 downward, so that the plate-like part 2703 slides along the downhill rail 2804 to the lowest point 2807 of the rail 2803, and with the movable member 27 rotates counterclockwise by a certain angle, the first power receiving part 12 is driven to rotate freely by the same angle about its own axis, so that the first power receiving claw 1201 of the first power receiving part 12 and the bottom end column 50b of the image forming apparatus driving head 50 interfere with each other counterclockwise, the first power receiving portion 12 can be smoothly disengaged from the image forming apparatus driving head 50. In this embodiment, the included angle θ 1 between the upper end 2804a and the lower end 2804b of the downhill track 2804 is greater than 90 degrees as measured along the circumferential direction of the fixed member 28, so the maximum angle θ 1 at which the movable member 27 drives the first power receiving portion 12 to rotate freely counterclockwise can be greater than 90 degrees, thereby preventing the first power receiving portion 12 from interfering with the image forming apparatus driving head 50 due to the fact that the amount of free rotation is too small.

Example 9

As shown in fig. 33 to 35, embodiment 9 of the present invention is different from embodiment 8 in the manner of engaging the movable element 27 and the fixed element 28 of the adjusting mechanism 29. In this embodiment, the same structure as that in embodiment 8 will not be described again, and only the technical features different from those in embodiment 8 will be briefly described. Wherein, the track 2803 of the fixture 28 eliminates the uphill track 2805, and only the downhill track 2804, the highest point 2806 of the track 2803, and the lowest point 2807 of the track 2803 are provided, and an angle θ 2 between an upper end 2804a and a lower end 2804b of the downhill track 2804 is larger than an angle θ 1 between an upper end 2804a and a lower end 2804b of the downhill track 2804 in embodiment 8, as measured in the circumferential direction of the fixture 28; the movable member 27 has a pair of plate-like portions 2703 formed at the edge of the cover portion 2704 thereof in the axial direction of the first power receiving portion 12 and extending downward, and the plate-like portions 2703 are slidable along the rails 2803 of the fixed member 28; the intermediate pressing block 18 is formed with a lifting portion 1801, and the lifting portion 1801 can abut against the lower edge of the cover portion 2704 of the movable member 27, thereby controlling the position of the movable member 27 in the axial direction of the first power receiving portion 12 with respect to the fixed member 28.

When the process cartridge performs an image forming operation in the image forming apparatus, the lifting portion 1801 of the intermediate urging piece 18 lifts the movable member 27 to such a position that the plate portion 2703 thereof does not contact the rail 2803 of the fixed member 28, that is, the movable member 27 only rotates circumferentially with the first power receiving portion 12 and does not extend and contract in the axial direction of the first power receiving portion 12, and at this time, the movable member 27 is lifted by the lifting portion 1801 to press the elastic member 26. When the process cartridge stops the image forming operation and needs to be taken out of the image forming apparatus, the control lever 17 presses the intermediate pressing piece 18 to move downward to control the clutch between the first power receiving portion 12 and the first power transmitting member 15, the first power receiving portion 12 can rotate freely around its axis, at this time, the movable piece 27 can move downward along the axis direction of the first power receiving portion 12 with the intermediate pressing piece 18 under the action of the elastic piece 26, that is, when the plate portion 2703 of the movable member 27 is located on the downhill rail 2804, the elastic member 26 presses the plate portion 2703 to slide along the downhill rail 2804 toward the lowest point 2807 of the rail 2803, the movable member 27 then drives the first power receiving portion 12 to rotate counterclockwise by a certain angle, so that the first power receiving claw 1201 of the first power receiving portion 12 avoids the position interfering with the bottom end column 50b of the image forming apparatus driving head 50, and the process cartridge can be smoothly taken out of the image forming apparatus.

Compared with the embodiment 8, in the present embodiment, the movable member 27 does not extend and contract up and down in the process of rotating along with the first power receiving portion 12, that is, the plate-shaped portion 2703 of the movable member 27 does not slide along the circumferential direction of the rail 2803 of the fixed member 28, so that the problem that the plate-shaped portion 2703 of the movable member 27 continuously rubs against the fixed member 28 to deform the plate-shaped portion 2703, and the movable member 27 presses the elastic member 26 to continuously extend and contract to cause elastic failure of the elastic member 26 can be avoided, and the included angle θ 2 between the upper end 2804a and the lower end 2804b of the downhill rail 2804 is larger than the included angle θ 1 in the embodiment 8 as measured in the circumferential direction of the fixed member 28, so that the free rotation amount of the first power receiving portion 12 can be further increased, and the probability of mutual interference between the.

In the above embodiment, the control lever in the control mechanism is specifically configured as a rotary swing lever, and optionally, the control mechanism may also be in the form of a push rod, for example, the push rod directly receives the pushing force in the door cover in the image forming apparatus, and presses the middle pressing block 18 to extend and contract to control the clutch between the first power receiving part 12 and the first power transmission member 15, and the technical effects of the present invention can also be achieved.

After the technical scheme is adopted, the driving assembly is in a mode that the power receiving part can move in a translation mode relative to the flange part, and the power receiving part is disengaged from the power transmission part for transmitting the driving force to the flange part after the power receiving part moves in the translation mode, so that the power receiving part can be engaged with and disengaged from the driving head in the image forming device more conveniently, the structure is simple, and the power transmission is stable. The technical problem that the power receiving part is blocked in the process of deflection possibly caused by repeated deflection of the power receiving part in the prior art and cannot be normally meshed with a driving head of an image forming device is solved.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A process cartridge detachably mountable to an image forming apparatus having a driving head for outputting a driving force, comprising:

a housing;

a flange member provided at one side of the housing;

the flange component is characterized by further comprising a control rod and a power transmission component, wherein the power transmission component can be meshed with the power output coupling portion to receive driving force and transmit the driving force to the flange component, the control rod is provided with a force bearing end, a pressing end and a rotating fulcrum, the force bearing end and the pressing end are respectively arranged on two sides of the rotating fulcrum, and the pressing end can apply force to the power transmission component to enable the power transmission component to be disengaged from the power receiving portion.

2. A process cartridge according to claim 1, wherein an urging member is provided between said control lever and said power transmission member, said urging member urging said power transmission member to move in response to a force of said control lever.

3. A process cartridge according to claim 1, wherein a power transmitting portion for transmitting a driving force to said flange member is provided on said power transmitting member, said power transmitting portion being configured as a recess recessed from an outer circumference of said power transmitting member.

4. A process cartridge according to claim 3, wherein an inner circumferential surface of said flange member is provided with a projection extending in an axial direction of said flange member, and said recess is engageable with said projection.

5. A process cartridge according to claim 1, wherein said power transmission member is movable in an axial direction of said flange member, and a position of said power receiving portion in the axial direction of said flange member is kept fixed when said control lever operates said power transmission member to move.

6. A process cartridge according to claim 1, further comprising an adjustment member, provided with a pair of power receiving claws on said power receiving portion, for adjusting an orientation of a penetrating direction of an opening formed between a pair of said power receiving claws, said adjustment member being farther from said flange member than said power transmission member and said urging member in an axial direction of said flange member.

7. A process cartridge according to claim 6, further comprising an auxiliary regulating member, an auxiliary regulated member being provided on said power receiving portion, said auxiliary regulating member being configured to urge said power receiving portion to rotate in one direction.

8. A process cartridge according to claim 7, wherein said auxiliary regulating member is operable to rotate said power receiving portion by a certain angle in a rotational direction of said driving head when rotation of said regulating member operating said power receiving portion in the rotational direction of said driving head is blocked by said driving head.

9. A process cartridge according to claim 7, wherein said regulating member and said auxiliary regulating member are disposed at different positions in an axial direction of said flange member.