Drive assembly for a process cartridge and process cartridge

Abstract

The application discloses a driving assembly for a processing cartridge and the processing cartridge. The driving assembly comprises a driving flange, a coupling component and an adjusting member. The coupling component is movably arranged on a bearing component. The coupling component comprises a shaft part, an adjusted part and a claw part. One end of the shaft part is connected with the driving flange in transmission. The other end of the shaft part is connected with the adjusted part. The claw part is connected with the adjusted part. The claw part is used for receiving a driving force output by an image forming device and transmitting the driving force to the driving flange. The adjusting member is arranged on the bearing component. The adjusting member is at least partially located outside the bearing component. The adjusting member is used for applying an acting force to the adjusted part to drive the coupling component to rotate to a first position. Through cooperation of the adjusting member and the adjusted part, the staying position of the coupling component in the rotating direction around the axis of the coupling component can be adjusted to avoid a dead point position, and the process of engaging or disengaging the coupling component with a driving part is more smooth.

Description

Technical Field

[0001] This application relates to the field of image forming technology, and more particularly to a driving component and a processing box for a processing box. Background Technology

[0002] In existing image forming apparatuses (or imaging devices), the electrophotographic photosensitive element (hereinafter referred to as the photosensitive drum) and the processing device acting on the photosensitive drum are integrally formed into a housing (usually called a processing housing). This processing housing can be detached from the main assembly of the image forming apparatus. In this type of structure, the image forming apparatus is provided with a drive force transmission unit, and the processing housing is provided with a drive assembly that engages with the drive force transmission unit to receive rotational drive force. The power is transmitted to the photosensitive drum through the engagement of the power output member on the drive force transmission unit with the connecting part of the drive assembly.

[0003] When the existing processing cartridge is installed on the image forming apparatus, the connecting parts of the processing cartridge may jam with the power output components on the image forming apparatus, failing to engage smoothly, or the two may collide rigidly during the process, resulting in poor engagement and damage to the relevant structures. Utility Model Content

[0004] In order to overcome the problems existing in the prior art, the main objective of this application is to provide a drive assembly and processing box that enables smoother engagement between the connecting component and the power output component of the image forming apparatus.

[0005] To achieve the above objectives, this application specifically adopts the following technical solution:

[0006] This application provides a driving assembly for a processing cartridge, the processing cartridge being detachably mounted to an image forming apparatus, the processing cartridge including a bearing component, and the driving assembly comprising:

[0007] A drive-side flange for connecting to a rotating component in the processing box;

[0008] A connecting component is movably disposed on the bearing component, and the connecting part includes a shaft part, an adjustable part and a claw part. One end of the shaft part can be drivenly connected to the drive-side flange, the other end of the shaft part is connected to the adjustable part, and the claw part is connected to the adjustable part. The claw part is used to receive the driving force output by the image forming apparatus and transmit it to the drive-side flange.

[0009] An adjusting member is disposed on the bearing component, and the adjusting member is at least partially located on the outside of the bearing component. The adjusting member is used to apply a force to the adjusted part to drive the connecting component to rotate to a first position, wherein when the connecting component is in the first position, the through direction Y of the opening of the claw portion is not perpendicular to the mounting direction X of the processing box.

[0010] In some embodiments, the adjustable portion is configured as a strip structure, the adjusting member is configured as a torsion spring, the torsion spring includes a first end, and the connecting member is located at the first position when the length extension direction of the first end is parallel to the length extension direction of the adjustable portion.

[0011] In some embodiments, the two ends of the adjustable portion in the length extension direction are provided with arc surfaces or slopes.

[0012] In some embodiments, the adjusting member is a counterweight rolling member, and there are multiple counterweight rolling members, which are respectively disposed on both sides of the adjusted part.

[0013] In some embodiments, the drive assembly further includes a noise reduction component mounted on the bearing assembly for reducing noise during the rolling process of the counterweight rolling element.

[0014] In some embodiments, the connecting component further includes a drive unit connected to the shaft portion, and the drive-side flange includes a force-receiving portion that cooperates with the drive unit for transmission.

[0015] In some embodiments, the drive assembly further includes a second elastic member disposed within the drive-side flange, with one end of the second elastic member connected to the drive-side flange, and the second elastic member is used to reset the drive unit.

[0016] In some embodiments, the adjusting member is configured as a first elastic member, the elastic force of the first elastic member being greater than the elastic force of the second elastic member.

[0017] In some embodiments, the drive unit is axially movable relative to the drive-side flange along the connecting member, and the adjusting member is also used to drive the drive unit to move axially along the connecting member.

[0018] In some embodiments, the drive unit includes a mating portion, and the drive-side flange includes a force-receiving portion, the force-receiving portion and the mating portion being able to abut each other so that the drive unit can transmit power to the drive-side flange.

[0019] In some embodiments, the adjustable part is provided with an adjusting ramp, and the adjusting member includes an adjusting part that cooperates with the adjusting ramp to rotate the connecting member to the first position.

[0020] In some embodiments, the adjusting member is telescopically disposed within the connecting member, and the connecting member is axially movable relative to the drive-side flange and the adjusting member in the drive assembly, and the connecting member is also rotatable relative to the drive-side flange and the adjusting member.

[0021] In some embodiments, the adjusting member includes a first guide portion, the shaft portion is provided with a spiral adjustable portion, the adjustable portion is configured to cooperate with the first guide portion, the force receiving portion is configured as a third guide portion with a spiral groove, and the driving portion cooperates with the third guide portion to enable the connecting member to move along the axial direction of the driving assembly.

[0022] In some embodiments, the adjusting member further includes a first engaging portion, and the drive-side flange is provided with a second engaging portion, the second engaging portion and the first engaging portion being configured to restrict the adjusting member from rotating about its axis.

[0023] Accordingly, this application also provides a processing box, the processing box comprising:

[0024] A drum frame, the drum frame including a bearing component, the bearing component having a hollow portion;

[0025] A photosensitive drum, which is rotatably supported on the drum frame;

[0026] As described in any of the above embodiments, the drive assembly is rotatably supported on the hollow portion of the bearing component, and the drive-side flange in the drive assembly is connected to the end of the photosensitive drum.

[0027] The drive assembly of this application includes a drive-side flange, a connecting component, and an adjusting component. The drive-side flange is used to connect to a rotating component in the processing box. The connecting component is movably disposed on the bearing component and includes a shaft portion, an adjustable portion, and a claw portion. One end of the shaft portion is driveably connected to the drive-side flange, and the other end of the shaft portion is connected to the adjustable portion. The claw portion is connected to the adjustable portion and is used to receive the driving force output by the image forming apparatus and transmit it to the drive-side flange. The adjusting component is disposed on the bearing component, and at least partially located on the outside of the bearing component. The adjusting component is used to apply a force to the adjustable portion to drive the connecting component to rotate to a first position. When the connecting component is in the first position, the through-direction Y of the claw portion is not perpendicular to the mounting direction X of the processing box. Compared with the prior art, this application, through the cooperation of the adjusting component and the adjustable portion, can adjust the dwell position of the connecting component in the rotational direction around its own axis to avoid dead point positions, making the process of engagement or disengagement between the connecting component and the drive pair smoother. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the processing box according to Embodiment 1 of this application;

[0029] Figure 2 This is a schematic diagram of the drive assembly and bearing component according to Embodiment 1 of this application;

[0030] Figure 3 This is a schematic diagram of the connecting component according to Embodiment 1 of this application;

[0031] Figure 4 This is a cross-sectional view of the connecting component, the drive-side flange, and the second elastic member according to Embodiment 1 of this application;

[0032] Figure 5 This is a schematic diagram of the dead point location in Embodiment 1 of this application;

[0033] Figure 6 This is a schematic diagram of the first angle of Embodiment 1 of this application;

[0034] Figure 7 This is a schematic diagram of the failure location in Embodiment 1 of this application;

[0035] Figure 8 This is a schematic diagram of the second and third angles of Embodiment 1 of this application;

[0036] Figure 9 This is a schematic diagram of the drive-side flange of Embodiment 1 of this application;

[0037] Figure 10 This is a schematic diagram of the adjusting component, connecting component, and drive-side flange of Embodiment 2 of this application;

[0038] Figure 11 This is a schematic diagram illustrating the principle of Embodiment 2 of this application;

[0039] Figure 12 This is a cross-sectional view of the adjusting component, connecting component, and drive-side flange of Embodiment 2 of this application;

[0040] Figure 13 This is a schematic diagram of an angle of the bearing component according to Embodiment 3 of this application;

[0041] Figure 14 This is a schematic diagram of the bearing component from another angle according to Embodiment 3 of this application;

[0042] Figure 15 This is a schematic diagram of the noise reduction component of Embodiment 3 of this application mounted on the bearing component at an angle;

[0043] Figure 16 This is a cross-sectional view of the drive assembly and bearing component according to Embodiment 3 of this application;

[0044] Figure 17 This is a schematic diagram of the bearing component and drive assembly according to Embodiment 4 of this application;

[0045] Figure 18 This is an exploded view of the driving component of Embodiment 4 of this application;

[0046] Figure 19 This is a schematic diagram of the drive-side flange of Embodiment 4 of this application;

[0047] Figure 20 This is a schematic diagram of the drive assembly, bearing component, power output component, and pusher component according to Embodiment 4 of this application, wherein the drive assembly is in a non-drive state, and the drive-side flange hides part of its structure to show the drive assembly;

[0048] Figure 21 This is a schematic diagram of the drive assembly, bearing component, power output component, and pusher component according to Embodiment 4 of this application, wherein the drive assembly is in the driving state, and the drive-side flange hides part of the structure to show the drive assembly;

[0049] Figure 22 This is a schematic diagram of the connecting component and adjusting component according to Embodiment 4 of this application;

[0050] Figure 23 This is a schematic diagram of the drive assembly and bearing component of Embodiment 4 of this application, showing the dead point position where the opening through direction Y of the connecting component is perpendicular to the mounting direction X of the processing box.

[0051] Figure 24 This is a schematic diagram of the drive assembly and bearing component of the processing box in Embodiment 5 of this application, wherein the processing box is in the initial state and the connecting component is located in the first abutment position;

[0052] Figure 25 This is a structural schematic diagram of the drive assembly and bearing component of the processing box according to Embodiment 5 of this application from another angle, wherein the processing box is in the initial state and the connecting component is located in the first abutment position;

[0053] Figure 26 This is an exploded view of the driving component according to Embodiment 5 of this application;

[0054] Figure 27 This is a cross-sectional view of the driving component according to Embodiment 5 of this application;

[0055] Figure 28 This is a cross-sectional view of the drive assembly and bearing component according to Embodiment 5 of this application;

[0056] Figure 29 This is a perspective view of the drive assembly (the first component with the drive-side flange omitted) and power output component of Embodiment 5 of this application during the installation process in the processing box;

[0057] Figure 30 This is a schematic diagram of the drive assembly and bearing component of the processing box in Embodiment 5 of this application, wherein the processing box is in the installed state and the connecting component is located in the second abutment position;

[0058] Figure 31 This is a perspective view of the drive assembly (the first component with the drive-side flange omitted) and power output component of Embodiment 5 of this application in the disassembled state of the processing box;

[0059] Figure 32 This is a schematic diagram of the driving component in the dead position according to Embodiment 5 of this application;

[0060] Figure 33 This is a schematic diagram of the drive assembly and bearing component of the processing box in Embodiment 5 of this application, wherein the connecting component is located at the first abutment position;

[0061] Figure 34 This is a schematic diagram of the drive assembly and bearing component of the processing box in Embodiment 5 of this application, wherein the connecting component is located at the second abutment position;

[0062] Figure 35 This is a schematic diagram of the drive assembly and bearing component according to Embodiment Six of this application;

[0063] Figure 36 This is an exploded view of the driving component according to Embodiment Six of this application;

[0064] Figure 37 This is a cross-sectional view of the drive assembly according to Embodiment Six of this application, wherein the axis A of the drive assembly coincides with the axis B of the connecting component;

[0065] Figure 38 This is a second cross-sectional view of the drive assembly according to Embodiment Six of this application, wherein the axis A of the drive assembly does not coincide with the axis B of the connecting component;

[0066] Figure 39 This is a schematic diagram of the drive assembly and bearing component according to Embodiment Six of this application, wherein the connecting component is located at the dead point position;

[0067] Figure 40 This is a second schematic diagram of the drive assembly and bearing component in Embodiment Six of this application, wherein the connecting component is rotated at a certain angle relative to the power output component;

[0068] Figure 41 This is a schematic diagram of the angle structure of the processing box and guide rail assembly in Embodiment 7 of this application;

[0069] Figure 42 This is a schematic diagram of the assembly of the processing box and guide rail in Embodiment 7 of this application from another angle.

[0070] Figure 43 This is an exploded structural diagram of the driving component according to Embodiment Seven of this application;

[0071] Figure 44 This is a schematic diagram of the drive-side flange of Embodiment 7 of this application;

[0072] Figure 45 This is a schematic diagram of the connecting component in Embodiment 7 of this application;

[0073] Figure 46 This is a schematic diagram of the cooperation between the drive assembly and the power output component in Embodiment 7 of this application. The connecting component is in an open position in the figure.

[0074] Figure 47 This is a schematic diagram of the cooperation between the drive assembly and the power output component in Embodiment 7 of this application. The connecting component in the figure is at the dead point position.

[0075] Figure 48 This is a schematic diagram of the cooperation between the drive assembly and the power output component in Embodiment 7 of this application. The connecting component in the figure is in a semi-open position.

[0076] Figure 49 This is a schematic diagram of the fit between the drive flange and the drive unit in Embodiment 7 of this application;

[0077] Figure 50 This is a schematic diagram of the fit between the drive-side flange and the drive unit in Embodiment 7 of this application. Detailed Implementation

[0078] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0079] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0080] In the description of this specification, it should be understood that the directional terms such as "upper" and "lower" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0081] Example 1

[0082] Embodiments of this application disclose a processing box detachably mounted to an image forming apparatus. The processing box has a driving side and a non-driving side along its length, wherein the driving side is used to receive driving force from the image forming apparatus, and the non-driving side is not used to receive driving force. In this specification, clockwise and counterclockwise refer to the clockwise and counterclockwise directions viewed from the power output member of the image forming apparatus toward the driving side of the processing box.

[0083] See Figure 1 and Figure 2The processing cartridge includes a drum unit 60 (i.e., a cleaning unit) and a developing unit 20. The drum unit 60 includes a drum frame 71 (cleaning frame), a photosensitive drum 62, a charging roller, a drive assembly, and a cleaning blade. The drum frame 71 encloses a waste toner bin for collecting untransferred residual developer (waste toner) from the photosensitive drum 62. The drum frame also includes a bearing component 76 on the drive side, with a hollow portion 76i that extends along the mounting direction of the processing cartridge. The photosensitive drum 62 is rotatably supported at both ends of the drum frame 71 along an axial direction. A drive assembly, coaxially arranged on the drum 62 and exposed outside the drive end face of the drum frame 71, is used to receive the driving force from the power output component of the imaging device to rotate the photosensitive drum 62. The waste toner bin is located on one side of the photosensitive drum 62. A charging roller is mounted on the drum frame 71 and positioned above the photosensitive drum 62 in the height direction of the processing cassette. The charging roller contacts the photosensitive drum 62 to charge it, thereby forming an electrostatic latent image that can absorb toner after exposure. A cleaning blade is mounted on the drum frame 71 and at least partially contacts the photosensitive drum 62 to remove residual waste developer from the photosensitive drum 62.

[0084] The developing unit 20 includes a developing frame 21, a developing roller, a developing cover, a toner discharge blade, and a stirring frame installed inside the toner hopper. The developing frame 21 encloses a toner hopper for storing developer. A toner inlet is provided along the length of the developing frame 21 to add toner to the hopper. The toner inlet can be located on one end face of the developing frame 21. The developing roller and the stirring frame are rotatably supported on the developing frame 21. The axes of the developing roller and the stirring frame are parallel to the axis of the photosensitive drum 62. The stirring frame and the developing roller can rotate under the action of a drive assembly. The stirring frame agitates the developer in the toner hopper and transports it towards the developing roller, preventing toner agglomeration. It also transports toner towards the developing roller, where it is attracted by the charged roller. The toner discharge blade is mounted on the developing frame 21 and makes linear contact with the surface of the developing roller to control the thickness of the developer on the roller.

[0085] The developing unit 20 and the drum unit 60 are movably connected. For example, a shaft hole can be provided on the drum frame 71 and a support shaft can be provided on the developing frame 21, so that the drum frame 71 is swayably connected to the developing frame 21 through the shaft hole and the support shaft, thereby allowing the developing roller and the photosensitive drum 62 to contact or separate from each other. In some embodiments, the developing unit 20 and the drum unit 60 can also be fixedly connected.

[0086] The driving assembly is connected to the photosensitive drum 62 and is used to receive the driving force output from the driving force transmission unit of the image forming apparatus and transmit it to the photosensitive drum 62. In this embodiment, the driving assembly includes a connecting component 86, a driving-side flange 87, an adjusting member, and a second elastic member 85d. Figure 4 (As shown in the figure). The axial direction of the drive assembly is also the axial direction (i.e., the axial direction) of the connecting component 86 and the drive-side flange 87.

[0087] See Figure 3 The connecting component 86 is used to connect with the power output component 14 in the image forming apparatus. Figure 5 (As shown in the diagram) Engages to receive driving force and transmits the driving force to the drive-side flange 87. The coupling member 86 is rotatably supported on the bearing member 76 about its axis. The coupling member 86 includes a shaft portion 86g, a drive portion, an adjustable portion 86i, and a claw portion 86d, wherein the claw portion 86d is located at the outermost end of the shaft portion 86g and is used to engage with the power output member 14.

[0088] Figure 5 The diagram illustrates the dead point position. When the processing box is installed into the image forming apparatus along the mounting direction X, or removed from the image forming apparatus in the opposite direction of the mounting direction X, the power output component 14 of the image forming apparatus needs to enter or exit through the opening between the two claw portions 86d of the connecting component 86. If the through direction Y of the opening of the claw portion 86d of the connecting component 86 is perpendicular to the mounting direction X of the processing box and is in the dead point position, the power output component 14 will have difficulty entering or exiting through the opening of the connecting component 86, which may easily lead to jamming between the power output component 14 and the connecting component 86, and may also easily cause damage to the connecting component 86 and the power output component 14. Therefore, if the stopping position of the connecting component 86 in the rotational direction around its own axis can be adjusted to another position that avoids the dead point position, it can smoothly disengage from the power output component 14 and prevent jamming.

[0089] Therefore, this embodiment includes an adjusting member and an adjustable portion 86i. The adjustable portion 86i is disposed adjacent to the claw portion 86d. When the connecting member 86 passes through the hollow portion 76i of the bearing member 76, the claw portion 86d and the adjustable portion 86i are exposed outside the bearing member 76. The adjustable portion 86i cooperates with the adjusting member. After the processing box is not installed or has stopped working after installation and use, the adjusting member can act on the adjustable portion 86i and rotate it, thereby driving the connecting member 86 to rotate. This adjusts the stopping position of the connecting member 86 in the rotation direction around its own axis, so that the through direction Y of the opening of the claw portion 86d of the connecting member 86 is not perpendicular to the installation direction X of the processing box, thus avoiding the dead point position.

[0090] See Figure 2Specifically, in this embodiment, the adjusting member is a first elastic member 85c. The first elastic member 85c is disposed on the bearing component 76 via a protrusion 76a. The first elastic member 85c is specifically a torsion spring, but in other embodiments, it can be other elastic structures. The first elastic member 85c has a first end 85c1 and a second end 85c2. The second end 85c2 is fixed to the bearing component 76. Specifically, the second end 85c2 can be inserted into a corresponding mounting hole in the bearing component 76, or it can be fixed by abutting against the structure of the bearing component 76. In this embodiment, it is the former. The first end 85c1 of the first elastic member 85c is used to interact with the adjusted part 86i.

[0091] Specifically, in this embodiment, the adjustable portion 86i is strip-shaped and extends radially along the connecting member 86. When the extension direction C of the adjustable portion 86i is parallel to the extension direction of the first end 85c1 of the first elastic member 85c, that is, when the first end 85c1 of the first elastic member 85c is tightly attached to the adjustable portion 86i, the two are relatively stationary. When the extension direction C of the adjustable portion 86i is not parallel to the extension direction of the first end 85c1, the adjustable portion 86i rotates under the elastic force of the first end 85c1 of the first elastic member 85c until the first end 85c1 of the first elastic member 85c is tightly attached to the adjustable portion 86i, and the extension direction C of the adjustable portion 86i is parallel to the extension direction of the first end 85c1 of the first elastic member 85c, thereby adjusting the stopping position of the connecting member 86 in the rotational direction around its own axis.

[0092] See Figure 6 For ease of explanation, when the extension direction C of the adjustable part 86i is parallel to the extension direction of the first end 85c1 of the first elastic member 85c, the dwell position of the connecting member 86 in the rotational direction around its own axis is defined as the first position. There is a first angle α between the extension direction C of the adjustable part 86i of the connecting member 86 and the through-opening direction Y of the claw part 86d. The value of this first angle α can also be 0. The value of this first angle α is not specifically limited here. Those skilled in the art can design it as needed, as long as it ensures that at this time (i.e., when the connecting member 86 is in the first position), the through-opening direction Y of the claw part 86d is not perpendicular to the mounting direction X of the processing box, thus avoiding a dead point position.

[0093] See Figure 2 , Figure 4 and Figure 9The drive-side flange 87 is used to obtain driving force from the connecting component 86 and transmit it to the photosensitive drum 62. The drive-side flange 87 is fixedly connected to the end of the photosensitive drum 62 and coaxially arranged with it, transmitting the driving force to the photosensitive drum 62. A gear portion 87c is provided on the outer wall of the drive-side flange 87, which transmits the driving force to the developing roller. The interior of the drive-side flange 87 is hollow, accommodating a portion of the connecting component 86 and the second elastic element 85d. In this embodiment, the drive-side flange 87 can drive both the photosensitive drum 62 and the developing roller simultaneously; in other embodiments, the drive-side flange 87 can drive only one of the photosensitive drum 62 and the developing roller.

[0094] The drive-side flange 87 includes at least one force receiving part, and the connecting member 86 includes at least one driving part. The force receiving part extends radially inward on the inner wall of the drive-side flange 87, and the driving part extends radially outward on the shaft portion 86g of the connecting member 86. The driving part and the force receiving part correspond one-to-one. The connecting member 86 can rotate freely relative to the drive-side flange 87 until the driving part rotates to a position that abuts against the force receiving part and drives the force receiving part to rotate, thereby driving the drive-side flange 87 to rotate.

[0095] See Figure 4 Specifically, in this embodiment, there are two force receiving parts, namely a first force receiving part 87d1 and a second force receiving part 87d2. The first force receiving part 87d1 and the second force receiving part 87d2 are vertically offset in the axial direction of the drive-side flange 87 and are spaced 180 degrees apart in the circumferential direction of the drive-side flange 87; see reference. Figures 3-4 There are two driving units: a first driving unit 86h1 and a second driving unit 86h2. The first driving unit 86h1 and the second driving unit 86h2 are vertically offset along the axial direction of the connecting member 86 and are 180 degrees apart in the circumferential direction of the connecting member 86. The first driving unit 86h1 drives the first force receiving unit 87d1, and the second driving unit 86h2 drives the second force receiving unit 87d2. The 180-degree separation ensures that the first driving unit 86h1 and the first force receiving unit 87d1 are in contact simultaneously, and the second driving unit 86h2 is also in contact with the second force receiving unit 87d2, allowing both to drive simultaneously and ensuring driving stability. In this embodiment, the first driving unit 86h1 is closer to the second elastic member 85d than the second driving unit 86h2, and the first driving unit 86h1 is used to abut against the third end 85d1 of the second elastic member 85d. In other embodiments, the second driving part 86h2 may be used to abut against the third end 85d1 of the second elastic member 85d.

[0096] Figure 7The failure position is illustrated. In this embodiment, the first elastic member 85c adjusts the dwell position of the connecting member 86 in the rotational direction around its own axis through the adjusted part 86i. However, there is a possible failure position for the first elastic member 85c. That is, when the extension direction C of the adjusted part 86i is perpendicular to the first end 85c1 of the first elastic member 85c, one end of the adjusted part 86i may get stuck with the first end 85c1, so that the first end 85c1 may not be able to push the connecting member 86 to rotate. For this reason, this embodiment preferably provides a second elastic member 85d. The second elastic member 85d is used to move the connecting member 86 away from the failure position where the adjusted part 86i is perpendicular to the first end 85c1 of the first elastic member 85c.

[0097] In other embodiments, other methods can be used to avoid or reduce the risk of failure location. For example, arc surfaces or slopes can be provided at the two opposite ends 86i 1 in the length extension direction of the adjusted part 86i (see [reference]). Figure 3 This makes it easier for the two ends 86i 1 of the adjustable part 86i to slide past the first end 85c1 of the first elastic member 85c, thereby reducing the risk of staying in the failure position. In this embodiment, a scheme of using a second elastic member 85d and setting an arc surface at the end 86i 1 of the adjustable part 86i is also adopted to further avoid the failure position.

[0098] See Figure 4 Specifically, the second elastic element 85d can be a torsion spring, disposed within the drive-side flange 87, and has a third end 85d1 and a fourth end 85d2. The fourth end 85d2 is fixed to the drive-side flange 87, either by inserting the fourth end 85d2 into a corresponding mounting groove in the drive-side flange 87 or by abutting against the structure of the drive-side flange 87; in this embodiment, the former is used. The third end 85d1 extends along the axis of the drive-side flange 87 and is positioned in the axial direction of the drive-side flange 87 at a height comparable to that of the first drive portion 86h1, so that when the first drive portion 86h1 rotates with the connecting component 86, the third end 85d1 can abut against the first drive portion 86h1.

[0099] See Figure 8The first force receiving part 87d1, the third end 85d1 of the second elastic member 85d, and the first driving part 86h1 are arranged in a clockwise direction so that when the connecting part 86 receives the driving force of the power output member 14 and rotates, the first driving part 86h1 rotates counterclockwise, first abuts against the third end 85d1 to make the second elastic member 85d store force, and then the first driving part 86h1 continues to rotate counterclockwise and abuts against the first force receiving part 87d1 to drive the driving side flange 87 to rotate. When the connecting component 86 no longer receives driving force, the second elastic element 85d releases, causing the first driving part 86h1 to rotate clockwise, thereby driving the connecting component 86 to rotate and avoid the failure position where the extension direction C of the adjusted part 86i is perpendicular to the extension direction of the first end 85c1 of the first elastic element 85c. This effect can be achieved by the cooperation of the first elastic element 85c and the second elastic element 85d. When the second elastic element 85d releases and drives the connecting component 86 to rotate, since the connecting component 86 is in a rotating state, the risk of the end of the adjusted part 86i and the first end 85c1 of the first elastic element 85c being stuck in a perpendicular position is reduced. At the same time, the first end 85c1 of the first elastic element 85c applies a force to the adjusted part 86i, so that the connecting component 86 can rotate to the first position as soon as possible, that is, the position of the connecting component 86 when the extension direction C of the adjusted part 86i is parallel to the extension direction of the first end 85c1 of the first elastic element 85c.

[0100] In order to ensure that during the above process, when the first driving part 86h1 rotates counterclockwise, after the first driving part 86h1 abuts against the third end 85d1, it pushes the third end 85d1 to move until it abuts against the first force receiving part 87d1, so that the second elastic member 85d can store force during this process, the first force receiving part 87d1 and the third end 85d1 need to have a second angle β. That is, in the clockwise direction, the angle between the line D1 connecting the first force receiving part 87d1 and the axis of the driving side flange 87 and the connection D2 connecting the third end 85d1 and the axis of the driving side flange 87 is the second angle β. The second angle β cannot be 0 and cannot be too small. For example, the second angle β can be 60° to ensure the force storage effect of the second elastic member 85d.

[0101] To further optimize the cooperation between the first elastic element 85c and the second elastic element 85d, it is preferable that the elastic force level of the first elastic element 85c is higher than that of the second elastic element 85d, so as to prevent the connecting part 86 from overcoming the force of the first elastic element 85c under the action of the elastic force of the second elastic element 85d and thus leaving the first position.

[0102] The connecting component 86 in this embodiment can be further configured to optimize the installation or disassembly process of the processing box. Specifically, this can be achieved by optimizing the third angle γ between the first driving part 86h1 and the first force receiving part 87d1 in the initial state.

[0103] See Figure 8 The third angle γ can be set to achieve the following effect during the installation and disassembly process: When the processing box is installed, the engagement process between the claw portion 86d of the connecting component 86 in the first position and the power output component 14 has the following two preferred cases: First, the optimal case, in which the power output component 14 directly enters the opening of the claw portion 86d, and the claw portion 86d does not need to rotate at all; second, the suboptimal case, in which the power output component 14 contacts the claw portion 86d and pushes the claw portion 86d clockwise, causing the claw portion 86d to... The opening is exposed, allowing the connection to enter and complete the engagement. During this clockwise rotation, the driving part has not yet come into contact with the force receiving part (i.e., the first driving part 86h1 has not come into contact with the first force receiving part 87d1, and the second driving part 86h2 has not come into contact with the second force receiving part 87d2). Therefore, the clockwise rotation of the connecting part 86 is easier and smoother, without the resistance of the driving side flange 87. This facilitates the smooth engagement of the claw part 86d with the power output part 14, increases the smoothness of the engagement process, and avoids or reduces damage to the components. When the claw part 86d and the power output part 14 have completed engagement, the power output part 14 drives the connecting part 86 to rotate counterclockwise. The subsequent process is as described above: the driving part first comes into contact with the third end 85d1 of the second elastic member 85d, causing the second elastic member 85d to store force, and then comes into contact with the force receiving part to drive the driving side flange 87 to rotate.

[0104] There is a third angle γ between the first driving part 86h1 and the first force receiving part 87d1. That is, in the clockwise direction, the angle between the line D3 connecting the axis of the first driving part 86h1 and the axis D1 between the first force receiving part 87d1 and the drive-side flange 87 is the third angle γ. The value of the third angle γ is not specifically limited here. Those skilled in the art can design it as needed, as long as it ensures that during the above process, when the claw part 86d drives the connecting part 86 to rotate clockwise, the driving part will not come into contact with the force receiving part. Taking the first driving part 86h1 and the first force receiving part 87d1 as an example, in the initial state, it is necessary to ensure that the first driving part 86h1 and the first force receiving part 87d1 have a third angle γ in the clockwise direction. That is, the value of the third angle γ cannot be 0. Within the range of the third angle γ, the first driving part 86h1 and the first force receiving part 87d1 are allowed not to contact each other, that is, the connecting part 86 is allowed to rotate freely relative to the drive-side flange 87.

[0105] The complete installation process of the processing box is as follows: In the initial state, that is, when the processing box is not installed, the adjusted part 86i is rotated under the pushing action of the first end 85c1 of the first elastic member 85c, so that the connecting part 86 is in the first position; during the installation of the processing box, the power output member 14 contacts the claw part 86d and pushes the claw part 86d clockwise, so that the opening of the claw part 86d is exposed and enters the opening to complete the engagement; when the processing box starts to work, the power output member 14 drives the connecting part 86 to rotate counterclockwise, the first driving part 86h1 first abuts against the third end 85d1 of the second elastic member 85d so that the second elastic member 85d stores force, and then abuts against the first force receiving part 87d1 to drive the driving side flange 87 to rotate, and the driving side flange 87 drives the photosensitive drum 62 to rotate. When the processing box finishes working, the power output component 14 stops outputting driving force, the connecting component 86 stops rotating, the second elastic element 85d is released, and the first driving part 86h1 is pushed by the third end 85d1 of the second elastic element 85d, causing the first driving part 86h1 to rotate clockwise. During this process, the first elastic element 85c simultaneously applies force to the adjusted part 86i, causing the connecting component 86 to return to the first position; the processing box is disassembled, the claw part 86d disengages from the power output component 14, and the processing box is successfully removed from the image forming apparatus.

[0106] This application adjusts the dwell position of the connecting member 86 in the rotational direction around its own axis by setting an adjusting member and an adjusting part 86i, so as to avoid the dead point position, making the process of engaging or disengaging the connecting member 86 with the power output member 14 smoother, and also reducing damage to related structures.

[0107] Example 2

[0108] This embodiment is basically the same as Embodiment 1, except that the shape, structure and working principle of the adjusting member are different. This embodiment does not require the setting of a first elastic member and a second elastic member.

[0109] See Figures 10-12 In this embodiment, the adjusting member is implemented as a counterweight rolling member 88. At least two counterweight rolling members 88 are provided, which are respectively arranged on both sides of the extension direction C of the adjusted part 86i. The counterweight rolling members 88 can roll under the action of gravity, thereby driving the adjusted part 86i to rotate, so as to adjust the stopping position of the connecting member 86 in the rotation direction around its own axis, so that the opening through direction Y of the claw part 86d of the connecting member 86 is not perpendicular to the installation direction X of the processing box, thereby avoiding the dead point position.

[0110] When the connecting component 86 is in the dead position (see...) Figure 5The extension direction C of the adjustable part 86i is approximately horizontal, and the presence of the counterweight rolling element 88 makes it difficult for the adjustable part 86i to maintain the dead position. (See reference...) Figure 10 Under the influence of gravity, the counterweight rolling element 88 rolls towards the lowest point, pushing the adjusted part 86i to rotate clockwise. Eventually, the extension direction C of the adjusted part 86i is approximately parallel to the position of the plumb bob, thus avoiding a dead point. Since counterweight rolling elements 88 are provided on both sides of the extension direction C of the adjusted part 86i, at least one counterweight rolling element 88 is located above the adjusted part 86i. When this counterweight rolling element 88 rolls downwards, it can push the adjusted part 86i to rotate, thus preventing the situation where all counterweight rolling elements 88 are below the adjusted part 86i and cannot push it to roll.

[0111] In this embodiment, the counterweight rolling element 88 is a steel ball. In other embodiments, other materials or shapes can also be used, as long as they can roll under gravity to push the adjusted element.

[0112] See Figure 12 The drive-side flange 87 is provided with a partition 87e, which divides the internal space of the drive-side flange 87 into a first space 87e1 and a second space 87e2. The adjustable part 86i and the counterweight rolling part 88 are disposed in the first space 87e1. The first space 87e1 is covered by the bearing part 76 to prevent the counterweight rolling part 88 from rolling out of the first space 87e1. The second space 87e2 is used to accommodate the drive part of the connecting part 86 and the force receiving part of the drive-side flange 87. By setting the partition 87e, the counterweight rolling part 88 can be prevented from rolling into the second space 87e2 and affecting the movement of the drive part and the force receiving part.

[0113] See Figure 10 The opening direction Y of the claw portion 86d of the connecting member 86 is set to be perpendicular to the extension direction C of the adjusted portion 86i. That is, the line connecting the two claw portions 86d coincides with the extension direction C of the adjusted portion 86i. In other embodiments, the line connecting the two claw portions 86d may not coincide with the extension direction C of the adjusted portion 86i, as long as the claw portion 86d is not located at the dead point position after the connecting member 86 is adjusted by the adjusting member, that is, when the extension direction C of the adjusted portion 86i is approximately parallel to the position of the gravity plumb bob.

[0114] The driving part and the force receiving part of this embodiment can adopt the same or similar structure as those in Embodiment 1, but there is no need to set the first elastic member and the second elastic member. That is, the connecting part 86 is no longer avoided by the elastic member, and the connecting part 86 can also smoothly engage with the power output part 14.

[0115] Example 3

[0116] This embodiment is basically the same as Embodiment 2, except that the structure of the bearing component is different.

[0117] Because the counterweight rolling element 88 falls faster than the connecting component 86, the counterweight rolling element 88 will produce abnormal noise in the drive-side flange 87 during operation.

[0118] See Figures 13-16 To address the issue of abnormal noise generated in the drive-side flange 87 by the counterweight rolling element 88 during operation, this embodiment includes a noise-reducing component 10 on the bearing component 76.

[0119] In this embodiment, the noise-absorbing component 10 is noise-absorbing cotton. In other embodiments, other materials can also be used, as long as they have friction properties and can provide a buffering effect during the rolling process of the counterweight rolling component 88.

[0120] See Figures 13-15 In this embodiment, the bearing component 76 mainly includes a plate-shaped portion 76h, a first protruding portion 76j and a protruding post 76a protruding from the plate-shaped portion 76h in a direction away from the photosensitive drum 62 (in some embodiments, the bearing component 76 may not have the protruding post 76a, or may not have the first protruding portion 76j and the protruding post 76a), and a second protruding portion protruding from the plate-shaped portion 76h in a direction close to the photosensitive drum 62, wherein the second protruding portion is a support portion 76c, which rotatably supports the drive-side flange 87. A hollow portion 76i is formed between the first protruding portion 76j and the protruding post 76a, and the connecting component 86 is accommodated in the hollow portion 76i. The support portion 76c is annular in shape and has a support surface 76b and a mounting groove 76d, wherein the mounting groove 76d is a recessed groove relative to the support surface 76b for accommodating the silencing component 10. Specifically, viewed along the axial direction of the photosensitive drum, the support surface 76b is closer to the non-drive side relative to the mounting groove 76d.

[0121] See Figure 16 There are at least two counterweight rolling elements 88 inside the drive-side flange 87, which are respectively arranged on both sides of the adjusted part 86i. When the silencing component 10 is installed into the mounting groove 76d, the silencing component 10 protrudes further from the support surface 76b. That is, after the bearing component 76 and the counterweight rolling elements 88 are assembled as a single unit, the distance between the support surface 76b and the partition plate 87e along the axial direction of the connecting component 86 is greater than the distance between the silencing component 10 and the partition plate 87e. Therefore, when the counterweight rolling elements 88 move into the space formed by the silencing component 10 and the partition plate 87e, the counterweight rolling elements 88 will abut against the silencing component 10. The friction generated between the silencing component 10 and the counterweight rolling elements 88 keeps the counterweight rolling elements 88 stationary and prevents them from rotating.

[0122] Furthermore, the silencing component 10, the connecting component 86, and the supporting surface 76b are arranged sequentially along the installation direction X of the processing box. This arrangement ensures that when the connecting component 86 is driven by the power output component 14 and rotates in the R1 direction (counterclockwise), the counterweight rolling component 88 located in the space formed by the supporting surface 76b and the partition 87e can be pushed by the adjustable part 86i and rotate synchronously with the connecting component 86. Meanwhile, the counterweight rolling component 88 located in the space formed by the silencing component 10 and the partition 87e remains stationary due to the friction of the silencing component 10 and will not fall freely due to its own weight. It can only be released from its stationary state when the counterweight rolling component 88 is subjected to the force of the adjustable part 86i. Since the force provided by the adjustable part 86i is greater than the friction provided by the silencing component 10, the counterweight rolling component 88 can rotate synchronously with the connecting component 86, thereby solving the problem of abnormal noise generated by the counterweight rolling component 88 in the drive-side flange 87 during operation.

[0123] Furthermore, in this embodiment, the hollow portion 76i of the bearing component 76 does not contact the connecting component 86, meaning that the bearing component 76 does not serve to adjust or fix the axial position of the connecting component 86. (See also...) Figure 16 In this embodiment, the drive assembly is further provided with a detachable fixing component 12, which is sleeved on the outer circumferential surface of the drive-side flange 87 away from the bearing component 76. The fixing component 12 has a through hole at the axial position that is adapted to the shaft portion 86g of the connecting component 86, so that when the connecting component 86 is installed in the drive-side flange 87, the position of its axial center is adjusted and fixed by the drive-side flange 87 and the fixing component 12.

[0124] Example 4

[0125] This embodiment is basically the same as Embodiment 1, except that the structure of the driving component is different.

[0126] See Figures 17-18 The drive assembly includes a connecting component 86, an adjusting component 83, a drive-side flange 87, and a second elastic component 85d.

[0127] See Figure 18The connecting member 86 is used to engage with the power output member 14 in the image forming apparatus to receive driving force. The connecting member 86 includes a shaft portion 86g, a drive portion 84, an adjustable portion 86i, and a claw portion 86d. The shaft portion 86g and the drive portion 84 are separately disposed. The claw portion 86d is located at the outermost end of the shaft portion 86g and is used to engage with the power output member 14. The adjustable portion 86i is formed on the shaft portion 86g near the claw portion 86d. The connecting member 86 passes through the hollow portion 76i on the bearing member 76, thereby being rotatably supported on the bearing member 76 about its axis. The adjustable portion 86i abuts against the hollow portion 76i. The shaft portion 86g is provided with a radial protrusion 86b for engaging with the drive portion 84.

[0128] See Figure 18 The drive unit 84 is sleeved on the shaft portion 86g of the connecting component 86 and can move axially relative to the shaft portion 86g. Simultaneously, the drive unit 84 and the shaft portion 86g are connected in the rotational direction, meaning the drive unit 84 cannot rotate relative to the shaft portion 86g. Specifically, the drive unit 84 has a central mounting hole 84a, and the mounting hole 84a has a radial groove 84b that matches the radial protrusion 86b of the shaft portion 86g. The shaft portion 86g is slidably disposed in the mounting hole 84a. The radial protrusion 86b and the radial groove 84b cooperate, allowing circumferential rotational force to be transmitted between the shaft portion 86g and the drive unit 84, and enabling the drive unit 84 to move axially relative to the shaft portion 86g. The drive unit 84 has a mating portion 84c on the side facing the interior of the processing box, which cooperates with the drive-side flange 87 to transmit power.

[0129] See Figure 18-19 A drive-side flange 87 is fitted over the drive section 84 to obtain power from the drive section 84 and transmit it to the photosensitive drum 62. An annular step is provided on the inner wall of the drive-side flange 87, and a force-receiving part 87a is provided on the annular step. When the force-receiving part 87a abuts against the mating part 84c, the drive section 84 and the drive-side flange 87 are driven. The mating part 84c and the force-receiving part 87a can be multiple protrusions and / or grooves facing each other, as long as the structure allows for transmission between the two. The drive-side flange 87 is fixedly connected to the end of the photosensitive drum 62, transmitting the driving force to the photosensitive drum 62. A gear part 87c is provided on the outer wall of the drive-side flange 87, which transmits the driving force to the developing roller. The shaft part 86g of the connecting member 86 extends through the drive-side flange 87 at one end facing the inside of the processing cartridge. A limiting ring 86e is provided at this end, abutting against the end face of the drive-side flange 87 to prevent the connecting member 86 from dislodging outwards from the processing cartridge.

[0130] See Figure 18The adjusting member 83 is used to push the driving unit 84 axially toward the interior of the processing box relative to the shaft portion 86g. Specifically, the adjusting member 83 is configured to receive the force from a structure on the image forming apparatus to push the driving unit 84 to move. In this embodiment, the adjusting member 83 is configured to receive the force from a pushing member 300b2 on the image forming apparatus to push the driving unit 84 to move. The pushing member 300b2 is a structure provided on one side of the power output member 14 of the image forming apparatus that protrudes toward the processing box. In this embodiment, the adjusting member 83 is axially movably disposed within the hollow portion 76i of the bearing member 76. Specifically, the adjusting member 83 is located downstream of the connecting member 86 in the mounting direction X. Thus, when the processing box is pushed into the image forming apparatus in the mounting direction X, the adjusting member 83 contacts the pushing member 300b2 before the connecting member 86 and moves axially toward the interior of the processing box under the pushing force of the pushing member 300b2. In this embodiment, the end of the adjusting member 83 facing outwards from the processing box, i.e., towards the pushing member 300b2, is also provided with a pushing ramp 83c. This pushing ramp 83c is inclined towards the downstream of the installation direction X and towards the inside of the processing box. This pushing ramp 83c facilitates receiving the force of the pushing member 300b2 and prevents the pushing member 300b2 from jamming with the adjusting member 83. In some embodiments, the bearing component 76 is provided with a protrusion 76a, and the adjusting member 83 is provided with a second limiting part 83a. The protrusion 76a is used to limit the second limiting part 83a, thereby limiting the axial movement range of the adjusting member 83 and preventing the adjusting member 83 from disengaging from the processing box when moving axially.

[0131] See Figure 18 The second elastic element 85d is disposed inside the drive-side flange 87 and abuts against the drive part 84, for resetting the drive part 84 relative to the shaft part 86g by moving axially outward from the processing box. The second elastic element 85d can be a spring or other structure with elastic force.

[0132] See Figure 20 ,exist Figure 20 In order to display the force receiving unit 87a, the drive-side flange 87 hides part of the structure. When the processing box is installed, it is pushed into the image forming apparatus along the installation direction X. The adjusting member 83 contacts the pushing member 300b2 and moves towards the inside of the processing box under the pushing of the pushing member 300b2, thereby pushing the drive unit 84 to move axially towards the inside of the processing box relative to the shaft portion 86g. The second elastic member 85d is compressed. At the same time, the connecting member 86 also engages with the power output member 14 and rotates under the drive of the power output member 14. Meanwhile, the shaft portion 86g drives the drive unit 84 to rotate, but the drive-side flange 87 does not rotate, and the driving force is not transmitted to the photosensitive drum 62.

[0133] See Figure 21 ,exist Figure 21In order to show the force receiving part 87a, the drive-side flange 87 hides part of the structure. When the drive part 84 moves axially to the mating part 84c and abuts against the force receiving part 87a, the drive part 84 and the drive-side flange 87 transmit driving force, and the drive part 84 enters the driving state. That is, the rotational movement of the connecting part 86 is transmitted to the drive-side flange 87 through the drive part 84. The drive-side flange 87 drives the photosensitive drum 62 to rotate, and the processing box enters the working state.

[0134] See Figure 20 When the processing box is disassembled, the pushing force of the pushing member 300b2 on the adjusting member 83 disappears. Under the action of the second elastic member 85d, the driving part 84 moves axially outward relative to the shaft part 86g to reset, so that the mating part 84c and the force receiving part 87a disengage. At this time, the shaft part 86g and the driving part 84 are in an idle state, and the driving force of the driving part 84 is no longer transmitted to the driving side flange 87, and the photosensitive drum 62 no longer receives the driving force.

[0135] See Figure 23 During the disassembly of the processing box, when the power output component 14 of the image forming apparatus disengages from the connecting component 86, it needs to leave through the opening between the two claw portions 86d of the connecting component 86. When the processing box is taken out in the opposite direction of the mounting direction X (i.e., the disassembly direction), if the through-direction Y of the opening of the connecting component 86 is perpendicular to the mounting direction X of the processing box and is in a dead position, the power output component 14 will have difficulty leaving the opening of the connecting component 86, which may easily lead to jamming between the power output component 14 and the connecting component 86, and may also easily cause damage to the connecting component 86 and the power output component 14. Therefore, if the stopping position of the connecting component 86 in its own rotation direction can be adjusted to another position that avoids the dead position, it can smoothly disengage from the power output component 14 and prevent jamming. To solve this problem, in some embodiments, see Figure 18 and Figure 22 The adjusting member 83 is also provided with an adjusting part 83b, and the adjusted part 86i is provided with an adjusting slope 86f. When the processing box is disassembled, the adjusting member 83 moves axially outward from the processing box relative to the shaft part 86g under the action of the second elastic member 85d to reset. The adjusting part 83b acts on the adjusting slope 86f, so that the stopping position of the connecting member 86 in its own rotation direction is adjusted, so that the opening through direction Y of the connecting member 86 is not perpendicular to the installation direction X of the processing box, thus avoiding the position where the opening through direction Y of the connecting member 86 is perpendicular to the installation direction X of the processing box.

[0136] Specifically, the adjusting part 83b is a cylindrical protrusion extending radially from the adjusting member 83, and the adjusting slope 86f is formed on the side of the adjusted part 86i facing the driving part 84. The adjusting slope 86f includes a first inclined part 86f1 and a second inclined part 86f2 arranged 180 degrees apart in the circumferential direction on the connecting member 86. A straight part 86h is formed in the circumferential direction between the first inclined part 86f1 and the second inclined part 86f2. Both the first inclined part 86f1 and the second inclined part 86f2 are provided with V-shaped slopes. When the processing box is disassembled, the drive unit 84 moves outward under the force of the second elastic member 85d, so that the adjustment unit 83b abuts against the adjusted part 86i of the connecting member 86. At this time, if the connecting member 86 is not located at the dead point position where the opening through direction Y of the connecting member 86 is perpendicular to the installation direction X of the processing box, the adjustment unit 83b abuts against the straight part 86h. The connecting member 86 does not need to adjust its dwell position in its own rotation direction, and the connecting member 86 can smoothly disengage from the power output member 14. If, at this time, the connecting component 86 is located at a dead point where the opening through direction Y of the connecting component 86 is perpendicular to the mounting direction X of the processing box, then the adjusting part 83b abuts against the V-shaped inclined surface. The axial force of the adjusting part 83b on the V-shaped inclined surface is converted into a force in the rotational direction of the connecting component 86, causing the connecting component 86 to rotate until the V-shaped inclined surface leaves the adjusting part 83b. The adjusting part 83b then abuts against the straight part 86h. By adjusting the stopping position of the connecting component 86 in its own rotational direction, the dead point where the opening through direction Y of the connecting component 86 is perpendicular to the mounting direction X of the processing box is avoided. The V-shaped inclined surface includes two inclined surfaces with opposite inclination directions, allowing the connecting component 86 to rotate nearby and adjust its rotational position as quickly as possible when the adjusting part 83b abuts against the V-shaped inclined surface. Furthermore, since the lower part of the V-shaped inclined surface connects to the straight part 86h, the connection is relatively smooth, and there will be no jamming between the adjusting part 83b and the V-shaped inclined surface. Since there are two dead points, which are 180 degrees apart, the first inclined part 86f1 and the second inclined part 86f2 are set 180 degrees apart to correspond to the two dead points, which can effectively avoid the two dead points and ensure that the power output component 14 and the connecting component 86 can smoothly disengage.

[0137] Furthermore, when the processing box is not installed, due to the force exerted by the second elastic member 85d on the adjusting member 83, and the aforementioned action of the adjusting part 83b and the adjusting inclined surface 86f, the adjusting part 83b will eventually remain in a position abutting against the straight part 86h, that is, the opening through direction Y of the connecting member 86 is not perpendicular to the installation direction X of the processing box. In this way, when the processing box is installed again, it will not jam with the power output member 14 during installation because the connecting member 86 is in a dead point position. This ensures that the connecting member 86 can smoothly engage with the power output member 14 during installation, making the installation smoother and preventing damage to the connecting member 86 and the power output member 14.

[0138] In this embodiment, the drive-side flange 87 drives both the photosensitive drum 62 and the developing roller. In other embodiments, the drive-side flange 87 may drive only one of the photosensitive drum 62 and the developing roller.

[0139] The drive assembly of this application has a simple structure. It achieves two states—driven and non-driven—by axially moving the drive unit 84 relative to the connecting component 86, transmitting driving force to or from the drive-side flange 87, thereby realizing power transmission to the processing box. Furthermore, the adjustment unit 83b and the adjustment ramp 86f ensure that the claw portion 86d of the connecting component 86 avoids dead spots, allowing for smooth engagement with the power output component 14 during installation and disengagement during removal. This makes the installation and disassembly process smoother and reduces damage to the connecting component 86 and the power output component 14.

[0140] Example 5

[0141] This embodiment is basically the same as Embodiment 1, except that the structure of the driving component is different.

[0142] In this embodiment, see Figure 24-28 The drive assembly includes a connecting component 86, a drive-side flange 87, an adjusting component 83, and a second elastic component 85d. In this embodiment, the axial direction of the drive assembly is also the axial direction of the connecting component 86, the drive-side flange 87, and the adjusting component 83 (i.e., the axial direction), and the axial direction is parallel to the length direction of the processing box.

[0143] An adjusting member 83 is axially telescopically disposed in the first hole 86n of the connecting member 86. A first guide portion 89a, specifically a guide protrusion, is provided on the outer circumferential surface of the adjusting member 83 to cooperate with the connecting member 86, allowing the connecting member 86 to extend and retract axially. A first engaging portion 89b is also provided at the end of the adjusting member 83 to cooperate with the drive-side flange 87, enabling the adjusting member 83 to extend and retract axially relative to the drive-side flange 87 but preventing it from rotating relative to the drive-side flange 87.

[0144] The connecting member 86 engages with the power output member 14 in the image forming apparatus to receive driving force and transmit the driving force to the drive-side flange 87. The connecting member 86 is rotatable about its axis and axially telescopingly supported on the drive-side flange 87. Specifically, the connecting member 86 is supported by a second hole 87h at the center of the drive-side flange 87. The connecting member 86 includes a shaft portion 86g and a claw portion 86d. The shaft portion 86g is disposed in the second hole 87h of the drive-side flange 87, and the claw portion 86d is disposed at the outermost end of the shaft portion 86g for engaging with the power output member 14. A drive portion 84 is provided on the outer circumferential surface of the shaft portion 86g. The drive portion 84 is for cooperating with the drive-side flange 87, and the drive portion 84 is specifically a transmission protrusion. The shaft portion 86g has a first hole 86n in the center. The adjusting member 83 is movably disposed in the first hole 86n along the axial direction, and the adjusting member 83 and the connecting member 86 can rotate relative to each other. The inner circumferential surface of the first hole 86n has an adjustable part 86i, which is specifically a spiral groove. The adjustable part 86i is used to interact with the first guide part 89a of the adjusting member 83. When the first guide part 89a moves axially with the adjusting member 83, the adjustable part 86i can move spirally under the action of the first guide part 89a, thereby causing the connecting member 86 to extend and retract axially in a spiral manner.

[0145] The drive-side flange 87 is used to obtain driving force from the connecting component 86 and transmit it to the photosensitive drum 62. The drive-side flange 87 is fixedly connected to the end of the photosensitive drum 62 and is coaxially arranged with the photosensitive drum 62, transmitting the driving force to the photosensitive drum 62. A gear portion 87c is provided on the outer wall of the drive-side flange 87, which transmits the driving force to the developing roller. In this embodiment, the drive-side flange 87 drives both the photosensitive drum 62 and the developing roller simultaneously; in other embodiments, the drive-side flange 87 may drive only one of the photosensitive drum 62 and the developing roller.

[0146] The drive-side flange 87 includes a first component 87f and a second component 87g that are separately configured and fixedly connected. A gear portion 87c is disposed in the first component 87f. A second hole 87h is provided in the center of the drive-side flange 87, passing through the first component 87f and the second component 87g. A third guide portion 87i is provided on the inner circumferential surface of the second hole 87h in the first component 87f. Specifically, the third guide portion 87i is a spiral groove. The drive portion 84 of the connecting component 86 can move spirally within the third guide portion 87i until it abuts against the abutting portion 87k at the end of the third guide portion 87i (see reference). Figure 28This causes the drive-side flange 87 to rotate. The shaft portion 86g of the connecting component 86 passes through the second hole 87h of the first component 87f. The second elastic element 85d can be a spring or other elastic structure. The second elastic element 85d is disposed in the second hole 87h of the second component 87g, with one end abutting against the shaft portion 86g and the other end abutting against the bottom of the second component 87g, for axial reset of the connecting component 86. See also Figure 26 The second component 87g is provided with a second engaging portion 87m. The first engaging portion 89b and the second engaging portion 87m of the adjusting member 83 cooperate to prevent the adjusting member 83 from rotating relative to the drive-side flange 87 around its axis, but the adjusting member 83 can move axially relative to the drive-side flange 87. The shaft portion 86g of the connecting member 86 is sleeved on the adjusting member 83. The connecting member 86 can rotate relative to the adjusting member 83 and the drive-side flange 87 around its axis, and can also move axially relative to the adjusting member 83 and the drive-side flange 87. Specifically, the connecting member 86 can move helically relative to the adjusting member 83 and the drive-side flange 87. Further, the first engaging portion 89b is a protruding structure, and the second engaging portion 87m is an elongated hole extending axially. The first engaging portion 89b can move axially in the second engaging portion 87m. In other embodiments, the first engaging portion 89b and the second engaging portion 87m can be reversed, for example, the first engaging portion 89b is an elongated hole, and the second engaging portion 87m is a protruding structure. The separate arrangement of the first component 87f and the second component 87g facilitates the installation of the adjusting member 83, the connecting member 86, and the second elastic member 85d into the drive-side flange 87. Further, see [link to relevant documentation]. Figure 25-27 The second component 87g is provided with a backstop 87j. After the adjusting member 83, the connecting member 86 and the second elastic member 85d are installed, the second component 87g is installed to the first component 87f. The backstop 87j engages with the first component 87f to prevent the second component 87g from disengaging from the first component 87f.

[0147] See Figure 25 In the initial state, the connecting component 86 is retracted axially, and the adjusting component 83 is extended axially. (See also...) Figure 29During the installation of the processing box, the power output component 14 first contacts the adjusting component 83, pressing the adjusting component 83 to retract axially into the connecting component 86, while simultaneously compressing the second elastic component 85d. The second elastic component 85d stores force, and the first guide portion 89a of the adjusting component 83 applies an axial force F1 into the processing box to the adjusted portion 86i of the connecting component 86. Because the driving portion 84 of the connecting component 86 abuts against the third guide portion 87i of the driving side flange 87, the connecting component 86 cannot move directly in the direction of F1. Since the adjusted part 86i has a spiral structure, the part of the adjusted part 86i that contacts the first guide part 89a is an inclined surface. F1 is converted into a radial (perpendicular to the axial) force F2 through the inclined surface, causing the connecting part 86 to rotate around the driving force direction R1 (specifically counterclockwise in this embodiment), thereby extending outward of the processing box in a spiral manner along the axial direction. This allows the claw part 86d of the connecting part 86 to engage with the power output member 14, and the power output member 14 outputs a driving force around the driving force direction R1 to the connecting part 86. At the same time, the driving part 84 moves spirally in the third guide part 87i along with the connecting part 86, and comes to the end of the third guide part 87i, abutting against the abutment part 87k. The connecting part 86 rotates around the driving force direction R1 under the drive of the power output member 14, and drives the driving side flange 87 to rotate. For the state of the processing box after installation, please refer to [link to documentation]. Figure 30 At this time, the connecting component 86 is in the extended state in the axial direction, and the adjusting component 83 is in the retracted state in the axial direction.

[0148] See Figure 31 When the processing box is disassembled, the power output component 14 leaves the adjusting component 83, and the second elastic component 85d is released, causing the adjusting component 83 to extend outward along the axial direction. The first guide portion 89a of the adjusting component 83 interacts with the adjusted portion 86i of the connecting component 86. The first guide portion 89a of the adjusting component 83 applies a force F3 along the axial direction to the outside of the processing box to the adjusted portion 86i of the connecting component 86. Through a principle similar to that described above, F3 is converted into a force F4 in the radial (perpendicular to the axial direction) direction through the inclined surface of the adjusted portion 86i, causing the connecting component 86 to rotate around the opposite direction of the driving force R2 (specifically clockwise in this embodiment), thereby retracting into the processing box in a spiral manner and returning to the initial state.

[0149] Furthermore, multiple first guide portions 89a can be provided; in this embodiment, there are two, spaced 180 degrees apart. Multiple drive portions 84 can be provided; in this embodiment, there are two, spaced 180 degrees apart. In other embodiments, the structures of the first guide portion 89a and the adjusted portion 86i can be reversed; that is, the first guide portion 89a is a spiral groove, and the adjusted portion 86i is a protrusion, or the first guide portion 89a and the adjusted portion 86i can have other shapes, as long as the above functions can be achieved. The structures of the drive portion 84 and the third guide portion 87i can be reversed; that is, the drive portion 84 is a spiral groove, and the third guide portion 87i is a protrusion, and the structure of the abutment portion 87k is also changed accordingly, or the drive portion 84, the third guide portion 87i, and the abutment portion 87k can have other shapes, as long as the above functions can be achieved.

[0150] This application sets up an adjusting component 83 that interacts with the power output component 14, thereby driving the connecting component 86 to extend and retract in a spiral manner to engage and disengage with the power output component 14. This allows the connecting component 86 to automatically extend and connect with the power output component 14 for driving after the processing box is installed. After the processing box is disassembled, it can return to its initial state. Since it does not need to cooperate with the door cover of the image forming apparatus, it avoids the problem of the door cover not closing tightly in the prior art. It also provides a drive component that is structurally stable, occupies little space, is easy to assemble, is easy to install, and can reliably and stably transmit driving force.

[0151] This application also provides a solution to prevent the power output component 14 and the connecting component 86 from getting stuck at a dead point during the installation and removal of the processing box.

[0152] Figure 32 The diagram illustrates the dead point position. When the processing box is installed into the image forming apparatus along the mounting direction X, or removed from the image forming apparatus in the opposite direction of the mounting direction X, the power output component 14 of the image forming apparatus needs to enter or exit through the opening between the two claw portions 86d of the connecting component 86. If, at this time, the through direction Y of the opening of the claw portion 86d of the connecting component 86 is perpendicular to the mounting direction X of the processing box and is in the dead point position, the power output component 14 will have difficulty entering or exiting through the opening of the connecting component 86, which may easily lead to jamming between the power output component 14 and the connecting component 86, and may also easily cause damage to the connecting component 86 and the power output component 14. Therefore, if the stopping position of the connecting component 86 in the rotational direction around its own axis can be positioned to avoid the dead point position, it can smoothly engage and disengage with the power output component 14, preventing jamming.

[0153] See Figure 24 , Figure 30 and Figures 33-34In this embodiment, the connecting component 86 is further provided with a first positioning part 86m, which is specifically a rib formed on the outer circumferential surface of the shaft part 86g. The bearing component 76 is provided with a second positioning part 76f that mates with the first positioning part 86m. The first positioning part 86m and the second positioning part 76f abut against each other, so that the stopping position of the connecting component 86 in the rotational direction around its own axis is positioned at the abutment position where the first positioning part 86m and the second positioning part 76f abut against each other. The abutment position avoids the dead point position for the installation and removal of the processing box, that is, at the abutment position, the through direction Y of the opening of the claw part 86d of the connecting component 86 is not perpendicular to the installation direction X of the processing box. The abutment position includes a first abutment position and a second abutment position. Specifically, the second positioning part 76f is disposed on the hollow part 76i. The second positioning part 76f includes a deformable structure 76j1 and an abutment protrusion 76j2. The connecting end of the deformable structure 76j1 is connected to the bearing component 76, and the free end of the deformable structure 76j1 is provided with the abutment protrusion 76j2. The deformable structure 76j1 can undergo a certain bending deformation. The abutment protrusion 76j2 is provided with a first abutment surface 76j21 and a second abutment surface 76j22. The first positioning part 86m can be positioned with the first abutment surface 76j21 at the first abutment position (see reference). Figure 24 and Figure 33 The first positioning part 86m can also be positioned with the second abutting surface 76j22 at the second abutting position (see...). Figure 30 and Figure 34 Both the first and second contact positions avoid the dead points for the installation and removal of the processing box. That is, in both the first and second contact positions, the through direction Y of the opening of the claw portion 86d of the connecting component 86 is not perpendicular to the installation direction X of the processing box.

[0154] See Figure 24 and Figure 33 In the initial state, the connecting component 86 is retracted in the axial direction and located in the first abutment position in the circumferential direction, that is, the first positioning part 86m abuts against the first abutment surface 76j21. Since the first abutment position avoids the dead point position, when the processing box is installed, the power output component 14 can smoothly enter the engagement position (the connecting component 86 is still in the retracted position and has not fully engaged with the power output component 14), avoiding interference between the power output component 14 and the claw part 86d, thus preventing jamming. Subsequently, the power output component 14 presses the adjusting component 83 to retract axially into the connecting component 86, so that the connecting component 86 rotates in a spiral manner relative to the drive-side flange 87 around the driving force direction R1 (counterclockwise in this embodiment) from the first abutment position to the second abutment position, while extending axially to engage with the power output component 14. The driving part 84 rotates with the connecting component 86 to the position abutting against the abutment part 87k, so that the connecting component 86 drives the drive-side flange 87 to rotate, realizing the transmission of driving force.

[0155] It should be noted that the first positioning part 86m and the second positioning part 76f are configured to have a certain extension length in the axial direction of the connecting member 86, so that within the extension range of the connecting member 86 along the axial direction, the first positioning part 86m and the second positioning part 76f have overlapping portions on the radial plane perpendicular to the axial direction. That is, regardless of whether the connecting member 86 is in the retracted or extended position in the axial direction, the first positioning part 86m will not be misaligned with the second positioning part 76f in the axial direction as the connecting member 86 extends or retracts, thus preventing the first positioning part 86m and the second positioning part 76f from being unable to abut. This means that when the connecting component 86 is in the extended position, the first positioning part 86m can still abut against the second positioning part 76f. During the development process of the processing cartridge, the power output component 14 continuously drives the connecting component 86. For every half turn of the connecting component 86 around the driving force direction R1, the first positioning part 86m will collide with the second positioning part 76f once. Since the deformable structure 76j1 has a certain elastic bending ability, the first positioning part 86m can overcome the resistance of the deformable structure 76j1 and push away the abutment protrusion 76j2. That is, the interference force generated by the second positioning part 76f on the connecting component 86 is small, so that the connecting component 86 can continue to rotate under the action of the driving force, thereby not affecting the operation of the processing cartridge.

[0156] When the image forming apparatus stops outputting driving force, the connecting member 86 loses driving force and its rotation speed gradually decreases until the first positioning part 86m can no longer overcome the resistance of the second positioning part 76f, thereby causing the connecting member 86 to stop at the second abutment position (see...). Figure 30 and Figure 34 Because the second abutment position avoids the dead point position, the connecting member 86 can be positioned in a position that is not a dead point. When the processing box is disassembled, the power output member 14 can smoothly disengage from the connecting member 86 in the second abutment position, avoiding interference between the power output member 14 and the claw part 86d, which could cause jamming. The power output member 14 leaves the adjusting member 83, which extends axially outward of the connecting member 86, causing the connecting member 86 to rotate helically relative to the drive-side flange 87 around the opposite direction of the driving force R2 (clockwise in this embodiment) from the second abutment position to the first abutment position. Under the abutment action of the first positioning part 86m and the second positioning part 76f, the connecting member 86 is positioned in the first abutment position, and at the same time, the connecting member 86 retracts axially, returning to its initial state. When the processing box is installed into the image forming apparatus again, the processing box can allow the power output member 14 to smoothly enter the engagement position with the connecting member 86 in the first abutment position, preventing jamming.

[0157] Furthermore, there can be multiple first positioning parts 86m. In this embodiment, two are provided, which are spaced 180 degrees apart. The number of second positioning parts 76f corresponds to the number of first positioning parts 86m.

[0158] This application uses the abutting action of the first positioning part 86m and the second positioning part 76f to position the connecting part 86 in the rotational direction around its own axis, thereby avoiding dead point positions and preventing interference and jamming between the power output part 14 and the connecting part 86 during the installation or removal of the processing box, making the installation and removal of the processing box smoother.

[0159] Example 6

[0160] This embodiment is basically the same as Embodiment 1, except that the structure of the driving component is different.

[0161] In this embodiment, see Figures 35-36 The drive assembly includes a connecting component 86, a drive section 84, a drive-side flange 87, a second elastic element 85d, and a first elastic element 85c. In this embodiment, the axial direction of the drive assembly is also the axial direction (i.e., the axial direction) of the connecting component 86, the drive section 84, and the drive-side flange 87.

[0162] The connecting member 86 is used to engage with the power output member 14 in the image forming apparatus to receive driving force. The connecting member 86 includes a shaft portion 86g, a boss portion 86c, and a claw portion 86d, wherein the claw portion 86d is located at the outermost end of the shaft portion 86g and is used to engage with the power output member 14, and the boss portion 86c is formed at the innermost end of the shaft portion 86g, opposite to the claw portion 86d. The connecting member 86 passes through the hollow portion 76i on the bearing member 76 and is exposed to the outside of the bearing member 76, thereby being rotatably supported on the bearing member 76 about its axis.

[0163] See Figures 37-38In this embodiment, the connecting member 86 can move relative to the bearing member 76 within the hollow portion 76i in a direction perpendicular to the axis A of the drive assembly (i.e., the axis of the photosensitive drum 62), thereby generating displacement in the plane where the bearing member 76 is located. After displacement, the axis B of the connecting member 86 does not coincide with the axis A of the drive assembly (i.e., the axis of the photosensitive drum 62). In this embodiment, it is preferable that the connecting member 86 moves in a direction perpendicular to the axis A of the drive assembly, that is, moves in the plane where the bearing member 76 is located. After displacement, the axis B of the connecting member 86 does not coincide with the axis A of the drive assembly (i.e., the axis of the photosensitive drum 62) and is parallel to each other. The first elastic element 85c is disposed on the bearing member 76 and is used to reset the connecting member 86 relative to the bearing member 76. Specifically, the first elastic element 85c is a torsion spring, which is sleeved on the protrusion 76a of the bearing member 76, and one end of which abuts against the connecting member 86 to push the connecting member 86 to reset, so that the axis B of the connecting member 86 coincides with the axis A of the drive assembly again.

[0164] The boss portion 86c is provided with a first transmission part 86c1 and a first action part 86c2. The first transmission part 86c1 is used for transmission connection with the drive part 84. The first transmission part 86c1 is specifically a toothed structure, but in other embodiments it can also be a transmission structure such as a protrusion or a groove. The first transmission part 86c1 is configured with end face teeth arranged around the boss portion 86c, with its teeth facing the drive part 84. The first action part 86c2 is used to interact with the drive part 84, thereby pushing the drive part 84 to move axially. Specifically, the first action part 86c2 has a structure with a slope or arc surface. In this embodiment, the first action part 86c2 is a hemispherical structure.

[0165] See Figure 36 The drive-side flange 87 is used to obtain driving force from the drive unit 84 and transmit it to the photosensitive drum 62. The drive-side flange 87 is fixedly connected to the end of the photosensitive drum 62 and is coaxially arranged with the photosensitive drum 62 to transmit driving force to the photosensitive drum 62. A gear portion 87c is provided on the outer wall of the drive-side flange 87, which is used to transmit driving force to the developing roller. The interior of the drive-side flange 87 is hollow and used to house the drive unit 84. The drive-side flange 87 is provided with a force receiving portion 87a for transmission connection with the drive unit 84. Specifically, the force receiving portion 87a is recessed circumferentially from the interior of the drive-side flange 87, and at least one force receiving portion 87a is provided. In this embodiment, there are two force receiving portions 87a, which are spaced 180 degrees apart. The drive unit 84 is provided with a corresponding mating portion 84c, which protrudes circumferentially from the drive unit 84 and is embedded in the force receiving portion 87a, so that the drive unit 84 and the drive-side flange 87 are transmissionally connected.

[0166] The drive unit 84 is used to transmit power between the connecting member 86 and the drive-side flange 87. The drive unit 84 is disposed inside the drive-side flange 87 and is coaxially arranged with the drive-side flange 87 and the photosensitive drum 62. The drive unit 84 is configured to move axially relative to the drive-side flange 87, but cannot move radially or rotate relative to the drive-side flange 87. The drive unit 84 has a second transmission part 84d and a second actuating part 84e. The second transmission part 84d is used for transmission connection with the first transmission part 86c1 of the connecting member 86. The second transmission part 84d is specifically a toothed structure; in other embodiments, it can also be a transmission structure such as a protrusion or a groove. The drive unit 84 is specifically a circular structure. The second transmission part 84d is configured with end face teeth arranged around the drive unit 84, with the teeth facing the connecting member 86. The second actuating part 84e interacts with the first actuating part 86c2 of the connecting member 86, thereby pushing the drive unit 84 to move axially. Specifically, when the connecting component 86 moves relative to the bearing component 76 within the hollow portion 76i in a direction perpendicular to the axis A of the drive assembly, that is, when displacement occurs in the plane where the bearing component 76 is located, the first actuating part 86c2 moves with the connecting component 86 and acts on the second actuating part 84e. Since the drive part 84 can only move axially, it retracts axially toward the photosensitive drum 62 under the push of the first actuating part 86c2, thereby causing the first transmission part 86c1 and the second transmission part 84d to misalign and disengage from each other, ceasing transmission. This allows the connecting component 86 to rotate freely around its axis without being linked with the drive part 84, the drive-side flange 87, and the photosensitive drum 62. Specifically, the first actuating part 86c2 has a structure with an inclined surface or an arc surface. In this embodiment, the second actuating part 84e has a groove structure with an inclined surface or an arc surface, which can convert the radial force applied by the first actuating part 86c2 into an axial force, driving the drive part 84 to move axially. The second elastic element 85d is axially disposed inside the drive-side flange 87, with its two ends abutting against the inner walls of the drive unit 84 and the drive-side flange 87, respectively, for axial repositioning of the drive unit 84. The second elastic element 85d can be a spring or other structure with elastic force.

[0167] During installation, the processing box is pushed into the image forming apparatus along the installation direction X. (See attached image form.) Figure 39If the connecting component 86 is installed at its dead point position, it will interfere with the power output component 14 within the image forming apparatus. This dead point position refers to the situation where the opening direction Y of the claw portion 86d of the connecting component 86 is perpendicular to the mounting direction X of the processing box. In this case, the power output component 14 will have difficulty entering the connecting component 86 through its opening, potentially leading to a situation where the power output component 14 and the connecting component 86 cannot engage. When the drive assembly of this embodiment is used, if the connecting member 86 interferes with the power output member 14, the connecting member 86 will be pushed by the power output member 14 and retract in the opposite direction of the X direction within the hollow portion 76i. That is, the connecting member 86 moves relative to the bearing member 76 in a direction perpendicular to the axis A of the drive assembly, i.e., displacement occurs in the plane (i.e., the XY plane) where the bearing member 76 is located. As a result, the axis B of the connecting member 86 does not coincide with the axis A of the drive assembly. At this time, the first actuating part 86c2 moves with the connecting member 86 and acts on the second actuating part 84e. The second actuating part 84e converts the radial force applied by the first actuating part 86c2 into an axial force, driving the drive part 84 to move axially. The second elastic member 85d compresses and stores force. The first transmission part 86c1 and the second transmission part 84d are misaligned and disengaged from each other, so that the connecting member 86 and the drive part 84 no longer transmit power. The connecting member 86 can therefore rotate freely relative to the drive part 84. (See reference...) Figure 30 When the connecting component 86 rotates at a certain angle relative to the power output component 14, the through direction Y of the opening of the connecting component 86 is no longer perpendicular to the installation direction X of the processing box. At this time, if the force is continued to be applied along the X direction, the power output component 14 can smoothly enter the space between the two claw portions 86d of the connecting component 86 from the opening of the connecting component 86, and the connecting component 86 engages with the power output component 14. After engagement, the thrust (interference force) of the power output component 14 on the connecting component 86 disappears. Under the action of the first elastic element 85c, the connecting component 86 moves again along the X direction within the hollow portion 76i and resets to the position where the axis B of the connecting component 86 coincides with the axis A of the drive assembly, so that the first transmission part 86c1 and the second transmission part 84d are opposite to each other. At this time, the force of the first action part 86c2 on the second action part 84e disappears, that is, after the force that drives the drive part 84 to retract axially disappears, under the action of the second elastic element 85d, the drive part 84 extends axially and resets, so that the first transmission part 86c1 and the second transmission part 84d are connected to achieve transmission connection. At this time, the connecting component 86 receives the rotational driving force of the power output component 14 and transmits it to the drive side flange 87 through the drive part 84. The drive side flange 87 drives the photosensitive drum 62 to rotate, thereby achieving drive.

[0168] The disassembly process of the processing box is similar. If the connecting component 86 is at a dead point and interferes with the power output component 14, preventing the power output component 14 from disengaging from the connecting component 86, the processing box can be pushed along the X direction. This causes the connecting component 86 to retract in the opposite direction of the X direction within the hollow portion 76i. The movement of the connecting component 86 causes the first transmission part 86c1 and the second transmission part 84d to misalign and disengage from each other. The connecting component 86 and the drive part 84 no longer transmit power, allowing the connecting component 86 to rotate freely relative to the drive part 84. After the connecting component 86 rotates a certain angle relative to the power output component 14, the through-direction Y of the opening of the connecting component 86 is no longer perpendicular to the installation direction X of the processing box. If force is continued to be applied along the X direction, the power output component 14 can smoothly leave the opening of the connecting component 86, and the connecting component 86 disengages from the power output component 14. After disengagement, under the action of the second elastic element 85d and the first elastic element 85c, the connecting component 86 resets and reconnects with the drive part 84.

[0169] In this embodiment, the drive-side flange 87 drives both the photosensitive drum 62 and the developing roller. In other embodiments, the drive-side flange 87 may drive only one of the photosensitive drum 62 and the developing roller.

[0170] The drive assembly of this application has a simple structure. By moving the connecting member 86 relative to the bearing member 76 (that is, relative to the drive part 84) in a direction perpendicular to the axis A of the drive assembly, the connecting member 86 can have both a free-rotating idle state relative to the drive part 84 and a transmission state with transmission connection relative to the drive part 84. In the idle state, the connecting member 86 can rotate relative to the drive part 84 to a position other than the dead point position, thereby smoothly engaging or disengaging with the power output member 14, making the assembly and disassembly process smoother and reducing damage to the connecting member 86 and the power output member 14.

[0171] Example 7

[0172] This embodiment is basically the same as Embodiment 1, except that the structure of the driving component is different.

[0173] Reference Figure 41In this embodiment, for ease of description, the width direction of the processing box 100 is defined as the X-axis direction, i.e., the first direction; the length direction of the processing box 100 is defined as the Y-axis direction, i.e., the second direction; and the height direction of the processing box 100 is defined as the Z-axis direction, i.e., the third direction. The X-axis, Y-axis, and Z-axis are orthogonal to each other. The installation direction of the processing box 100 from the outside into the imaging device is defined as the -X direction, and the disassembly direction is defined as the +X direction. One end of the -X-axis direction is also the front end of the processing box 100. The processing box 100 has a driving end 101 and a non-driving end 102 in the Y-axis direction. The driving end 101 is located on the +Y-axis side of the processing box 100, and the non-driving end 102 is located on the side opposite to the driving end 101 in the Y-axis direction, i.e., the -Y-axis side.

[0174] like Figure 41 and Figure 42 As shown, the imaging device has a guide rail 300, which is a groove-type guide slide rail structure that can abut against the processing box 100, allowing the processing box 100 to move along the X-axis. The imaging device also has a power output component 14, used to output driving force to the processing box 100 to enable its operation. Figures 46 to 48 As shown, the power output component 14 includes a lever 14a and power output arms 14b symmetrically arranged on the lever 14a.

[0175] like Figures 43 to 45As shown, in this embodiment, the driving assembly includes a driving-side flange 87 and a connecting component 86. The driving-side flange 87 is configured as a drum gear, and its -Y-axis end is fixedly connected to the end of the photosensitive drum 62 to drive the photosensitive drum 62 to rotate in the rotation direction A. When viewed along the -Y-axis direction, the rotation direction A is counterclockwise. The outer circumferential surface of the driving-side flange 87 is provided with teeth 131, which mesh with the gear at the end of the developing roller 23. When the driving-side flange 87 rotates, it can simultaneously drive the photosensitive drum 62 and the developing roller 23 to rotate. The +Y axis end of the drive-side flange 87 is recessed to form a receiving cavity, which includes a receiving groove 132. The receiving groove 132 includes a first groove 132a and a second groove 132b that are interconnected. The first groove 132a is located at the central axis of the drive-side flange 87. There are two second grooves 132b, located on both sides of the first groove 132a and connected to it. The two second grooves 132b are centrally symmetrical about the central axis of the drive-side flange 87. The receiving groove 132 is provided with a first guide surface 133 and a second guide surface 134. Specifically, the first guide surface 133 is provided in the first groove 132a and consists of two groove walls of the first groove 132a. The first guide surface 133 includes a first part 133a and a second part 133b that are centrally symmetrical about the central axis of the drive-side flange 87. Both the first part 133a and the second part 133b are arc surfaces, forming a roughly arc-shaped rotational space between them. The second guide surface 134 is disposed in the second groove 132b and connected to the end of the first guide surface 133. Specifically, the second guide surface 134 includes a third part 134a and a fourth part 134b that are centrally symmetrical along the central axis of the drive-side flange 87. The third part 134a and the fourth part 134b are respectively a groove wall surface of the two second grooves 132b. The third part 134a and the fourth part 134b are both inclined surfaces. The third part 134a is connected to the first part 133a at the upstream end of the rotation direction A, and the fourth part 134b is connected to the second part 133b at the upstream end of the rotation direction A.

[0176] like Figure 45As shown, the connecting component 86 engages with the power output component 14 to receive driving force and drive the drive-side flange 87 to rotate in the rotation direction A. The connecting component 86 includes a claw portion 86d, a shaft portion 86g, a plate portion 143, and a drive portion 84 arranged sequentially. There are two claw portions 86d, which are centrally symmetrically arranged with an opening between them. The two claw portions 86d are respectively used to abut against the two power output arms 14b of the power output component 14, thereby receiving the driving force of the power output component 14 to rotate. The drive unit 84 is housed within the receiving groove 132 of the drive-side flange 87. The plate portion 143 abuts against the +Y axis side of the receiving groove 132. The drive unit 84 is generally a cuboid protrusion. When the drive unit 84 is located within the first groove 132a and its two sides abut against the first portion 133a and the second portion 133b of the first guide surface 133 respectively, the connecting member 86 forms a transmission relationship with the drive-side flange 87. The connecting member 86 receives driving force to drive the drive-side flange 87 to rotate. The connecting member 86 is capable of moving radially relative to the drive-side flange 87, that is, moving between the first groove 132a and the second groove 132b.

[0177] Furthermore, such as Figures 41 to 43 , Figures 46 to 48 As shown, the processing box also includes a bearing component 76, which is fixedly mounted on the drive end 101 of the drum frame 71 and located on the +Y axis side of the drive side flange 87. The bearing component 76 has a hollow portion 76i, and the claw portion 86d of the connecting component 86 extends from the hollow portion 76i to the outside of the bearing component 76 (+Y axis side) to facilitate engagement with the drive output component. The hollow portion 76i is a strip-shaped hole, and the extension direction of the hollow portion 76i is along the X-axis direction. The connecting component 86 can move radially along the hollow portion 76i.

[0178] Furthermore, such as Figure 43 , Figures 46 to 48 As shown, the drive assembly also includes a first elastic element 85c, which is supported on the bearing component 76 and abuts against the connecting component 86. Specifically, the first elastic element 85c is a torsion spring. The bearing component 76 has a protrusion 76a, and the torsion spring is sleeved on the protrusion 76a. One arm of the torsion spring abuts against the shaft portion 86g of the connecting component 86, and the other arm abuts against the bearing component 76. In the initial state without external force, the first elastic element 85c is configured to abut against the -X axis end of the hollow portion 76i. When the connecting component 86 moves relative to the drive-side flange 87 in the direction opposite to the installation direction (+X direction), the first elastic element 85c is torsional deformed, generating a force that allows the connecting component 86 to move in the installation direction (-X direction).

[0179] During the installation of the processing box 100 into the imaging device along the mounting direction (-X direction), the connecting component 86 has two possibilities. The first possibility is:

[0180] like Figure 46 As shown, when the connecting component 86 is in the open position, that is, the opening between the two claw portions 86d faces the power output component 14, the processing box 100 can be directly installed in place. However, the connecting component 86 and the power output component 14 may not be fully engaged yet. When the power output component 14 starts to rotate, its power output arm 14b pushes the claw portion 86d of the connecting component 86, so that the connecting component 86 has a slight radial swing in the rotation space formed between the first portion 133a and the second portion 133b of the first guide surface 133, thereby engaging the power output component 14 with the connecting component 86.

[0181] The second scenario: Figure 47 As shown, when the connecting component 86 is in the dead position, that is, when the claw portion 86d of the connecting component 86 cannot engage with the power output arm 14b of the power output component 14, in the dead position, the opening between the two claw portions 86d faces a direction perpendicular to the installation direction (i.e., the opening does not face the installation direction), and the claw portion 86d will interfere with the power output component 14. Figure 48 and Figure 49 As shown, during the installation of the processing box into the imaging device along the mounting direction (-X direction), the connecting member 86 interferes with the power output member 14 and is pushed to move relative to the drive-side flange 87 in the receiving groove 132 (moving along the +X direction) in a radial direction opposite to the mounting direction. That is, the drive part 84 moves from the first groove 132a to one of the second grooves 132b. During the movement, the first elastic member 85c is torsional deformed, and one side of the drive part 84 abuts against the second guide surface 134 and slides along the second guide surface 134, causing the connecting member 86 to rotate about its axis to deviate from the dead point position, so that the opening between the two claw parts 86d is at least partially oriented towards the mounting direction. (That is, in the semi-open position, the claw portion 86d will not interfere with the power output component 14 and be pushed); in this position, one side of the drive portion 84 abuts against the second guide surface 134, and the other side abuts against the first guide surface 133. One of the first guide surface 133 and the second guide surface 134 abutting against the drive portion 84 is located upstream of the drive portion 84 in the rotation direction A, and the other is located downstream of the drive portion 84 in the rotation direction A. Specifically, the second guide surface 134 is located downstream of the drive portion 84 in the rotation direction A, that is, one side of the drive portion 84 abuts against the fourth portion 134b of the second guide surface 134, and the other side abuts against the first portion 133a of the first guide surface 133 (e.g., ...). Figure 49As shown in the figure, when the power output component 14 starts to rotate, the power output arm 14b pushes the claw portion 86d of the connecting component 86, causing the connecting component 86 to swing slightly radially, and is driven by the thrust of the first elastic member 85c after deformation recovery to move along the installation direction (-X direction), so that the power output component 14 engages with the connecting component 86.

[0182] like Figure 50 As shown, in some other embodiments, the inclination direction of the second guide surface 134 can be set differently. Specifically, the second guide surface 134 includes a third part 134a and a fourth part 134b that are centrally symmetrical along the central axis of the drive-side flange 87; the third part 134a is connected to the first part 133a at the downstream end of the rotation direction A, and the fourth part 134b is connected to the second part 133b at the downstream end of the rotation direction A.

[0183] like Figure 50 As shown, during the installation of the processing box into the imaging device along the mounting direction (-X direction), the connecting member 86 interferes with the power output member 14 and is pushed to move relative to the drive-side flange 87 in the receiving groove 132 (moving along the +X direction) in a radial direction opposite to the mounting direction. That is, the drive part 84 moves from the first groove 132a to one of the second grooves 132b. During the movement, the first elastic member 85c is torsional deformed, and one side of the drive part 84 abuts against the second guide surface 134 and slides along the second guide surface 134, causing the connecting member 86 to rotate about its axis to deviate from the dead point position, so that the opening between the two claw portions 86d is at least partially facing the mounting direction (i.e., in a half-open position, the claw portions 86d will not interfere with the power output member 14 and be pushed). In this position, the second guide surface 134 is located upstream of the drive part 84 in the rotation direction A, that is, one side of the drive part 84 abuts against the third portion 134a of the second guide surface 134, and the other side abuts against the second portion 133b of the first guide surface 133. When the power output component 14 starts to rotate, the power output arm 14b pushes the claw portion 86d of the connecting component 86, causing the connecting component 86 to swing slightly radially, and is driven by the thrust of the first elastic element 85c to move along the installation direction (-X direction), so that the power output component 14 engages with the connecting component 86.

[0184] In this embodiment, a first guide surface 133 and a second guide surface 134 are provided in the drive-side flange 87, so that the connecting component 86, which is in the dead point position, can rotate to deviate from the dead point position during the retraction process. This allows the opening between the two claw portions 86d of the connecting component 86 to be installed in the direction of the power output component 14, making the installation smooth and enabling stable and reliable transmission of driving force. The structure is stable, occupies little space, and is easy to assemble.

[0185] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A drive assembly for a processing cartridge, the processing cartridge being detachably mounted to an image forming apparatus, the processing cartridge including a bearing component, characterized in that, The driving component includes: A drive-side flange for connecting to a rotating component in the processing box; A connecting component is movably disposed on the bearing component, and the connecting part includes a shaft part, an adjustable part and a claw part. One end of the shaft part can be drivenly connected to the drive-side flange, the other end of the shaft part is connected to the adjustable part, and the claw part is connected to the adjustable part. The claw part is used to receive the driving force output by the image forming apparatus and transmit it to the drive-side flange. An adjusting member is disposed on the bearing component, and the adjusting member is at least partially located on the outside of the bearing component. The adjusting member is used to apply a force to the adjusted part to drive the connecting component to rotate to a first position, wherein when the connecting component is in the first position, the through direction Y of the opening of the claw portion is not perpendicular to the mounting direction X of the processing box.

2. The driving component according to claim 1, characterized in that, The adjustable part is configured as a strip structure, and the adjusting member is configured as a torsion spring. The torsion spring includes a first end. When the length extension direction of the first end is parallel to the length extension direction of the adjustable part, the connecting member is located at the first position.

3. The driving component according to claim 2, characterized in that, The two ends of the adjustable part in the length extension direction are provided with arc surfaces or inclined surfaces.

4. The driving component according to claim 1, characterized in that, The adjusting element is configured as a counterweight rolling element, and there are multiple counterweight rolling elements, which are respectively located on both sides of the adjusted part.

5. The driving component according to claim 4, characterized in that, The drive assembly also includes a noise reduction component, which is installed on the bearing assembly and is used to reduce noise during the rolling process of the counterweight rolling element.

6. The driving component according to claim 1, characterized in that, The connecting component further includes a drive unit, which is connected to the shaft portion. The drive-side flange includes a force-receiving part, which cooperates with the drive unit for transmission.

7. The driving component according to claim 6, characterized in that, The drive assembly further includes a second elastic element, which is disposed inside the drive-side flange and one end of the second elastic element is connected to the drive-side flange. The second elastic element is used to reset the drive unit.

8. The driving component according to claim 7, characterized in that, The adjusting element is configured as a first elastic element, and the elastic force of the first elastic element is greater than the elastic force of the second elastic element.

9. The driving component according to claim 6, characterized in that, The drive unit is capable of moving axially relative to the drive-side flange along the connecting component, and the adjusting member is also used to drive the drive unit to move axially along the connecting component.

10. The driving component according to claim 9, characterized in that, The drive unit includes a mating part, and the drive-side flange includes a force-receiving part. The force-receiving part and the mating part can abut each other so that the drive unit can transmit power to the drive-side flange.

11. The driving component according to claim 9, characterized in that, The adjustable part is provided with an adjusting slope, and the adjusting member includes an adjusting part, which cooperates with the adjusting slope to rotate the connecting member to the first position.

12. The driving component according to claim 9, characterized in that, The adjusting member is telescopically disposed within the connecting component, and the connecting component is axially movable relative to the drive-side flange and the adjusting member in the drive assembly. The connecting component is also rotatable relative to the drive-side flange and the adjusting member.

13. The driving component according to claim 12, characterized in that, The adjusting member includes a first guide portion, the shaft portion is provided with a spiral adjustable portion, the adjustable portion is configured to cooperate with the first guide portion, the force receiving portion is configured as a third guide portion with a spiral groove, and the driving portion cooperates with the third guide portion to enable the connecting member to move along the axial direction of the driving assembly.

14. The driving component according to claim 12, characterized in that, The adjusting component further includes a first engaging portion, and the drive-side flange is provided with a second engaging portion. The second engaging portion and the first engaging portion are configured to cooperate and restrict the adjusting component from rotating around its axis.

15. A processing box, characterized in that, include: A drum frame, the drum frame including a bearing component, the bearing component having a hollow portion; A photosensitive drum, which is rotatably supported on the drum frame; The drive assembly as claimed in any one of claims 1 to 14, wherein the drive assembly is rotatably supported on the hollow portion of the bearing component, and the drive-side flange of the drive assembly is connected to the end of the photosensitive drum.

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