Processing box

Abstract

The processing box comprises a box body; the bracket is fixed at the end part of the box body, and a through hole is formed in the bracket; the driven part is rotatably arranged on the box body in the X direction; the central axis of the power receiving part is arranged in the X direction, and the power receiving part penetrates through the through hole; when the processing box moves to a mounting position from the outside and the power receiving part abuts against a driving piece of a main assembly of the image forming device and cannot be combined with the driving piece, the power receiving part can move in the extending direction of the through hole, the center axis of the power receiving part moves to a second position from a first position in parallel relative to the support, and the first elastic piece accumulates force; after the processing box is installed in place, the driving piece rotates, the first elastic piece is released to enable the power receiving part to reset in the extending direction of the through hole, and the center shaft of the power receiving part moves from the second position to the first position in parallel to reset; and the power receiving part acts with the driving piece and rotates in the moving process, so that the power receiving part is combined with the driving piece.

Description

Technical Field

[0001] The utility model relates to an image forming device, in particular to a processing box. Background Art

[0002] The image forming device forms an image on a recording material (such as paper) using an electrophotographic imaging technique. Examples of image forming devices include electrophotographic copiers, electrophotographic printers, fax machines, word processors, and the like. The cartridge includes at least one of an electrophotographic photosensitive drum as a photosensitive member and a developing member (such as a developing roller) that can act on the drum. The photosensitive member and the developing member can also be integrally constructed as a cartridge (which can be referred to as a process cartridge) that can be detachably mounted in the image forming device. The process cartridge also includes a charging roller that is used to contact the photosensitive drum and charge it.

[0003] Usually, a photosensitive drum power receiving unit is provided at one end of the processing box to receive the driving force of the image forming device. In the prior art, a processing box is disclosed, in which the power receiving unit at the end of the photosensitive drum adopts a ball-type universal joint driving member connection structure, and the universal joint driving member can be eccentrically connected or disengaged with the image forming device driving member. This connection structure has the following shortcomings: the ball-type universal joint is easy to disengage from the gear (especially during transportation, this phenomenon is more likely to occur), and it will swing randomly in a non-stressed state, that is, its central axis will swing relative to the central axis of the image forming device driving member, so when the processing box is installed or disassembled, it is easy to cause the power receiving unit and the driving member to get stuck with each other, and even cause damage to the power receiving unit and the driving member, thereby causing the drive connection function to be lost or the drive connection to be not smooth, resulting in the processing box or the image forming device not being able to work normally. Utility Model Content

[0004] According to one aspect of the utility model, there is provided a process cartridge detachably mounted on a main assembly of an image forming device, comprising:

[0005] Box body;

[0006] A bracket fixed to the end of the box body, the bracket is provided with a through hole, and a side of the bracket facing the outside of the processing box forms an outer surface;

[0007] A driven component, which is rotatably arranged on the box body along the X direction; and

[0008] A power receiving unit, which is used to receive the driving force of the main assembly and transmit it to the driven component, the power driving unit includes a power receiving part and a first elastic member, the central axis of the power receiving part is arranged along the X direction, and it is arranged through the through hole;

[0009] When the processing box is moved from the outside to the installation position and the power receiving part abuts against the driving part of the main component of the image forming device but cannot be combined, the power receiving part can move along the extension direction of the through hole, and the central axis of the power receiving part moves parallel to the bracket from the first position to the second position, and the first elastic part accumulates force; after the processing box is installed in place, the driving part rotates, and the first elastic part is released to reset the power receiving part along the extension direction of the through hole, and the central axis of the power receiving part moves parallel to the first position from the second position to reset; during the movement of the power receiving part, it acts on the driving part and rotates, so that the power receiving part is combined with the driving part.

[0010] The utility model arranges that during the installation process of the power receiving part and the driving part of the main component, the central axis of the power receiving part always moves in a manner parallel to the X-direction to achieve combination with the driving part, thereby avoiding the technical problem in the prior art that the central axis of the ball-type universal joint driving part repeatedly swings relative to the X-axis and is stuck with the driving part during the yaw process and cannot work normally.

[0011] In some embodiments, the driven component is a photosensitive drum.

[0012] In some embodiments, the through hole extends along the process cartridge installation direction Y.

[0013] In some embodiments, both ends of the through hole are closed.

[0014] In some embodiments, when projected from a direction perpendicular to the X-direction, the projection of the outer surface does not overlap with the projection of the limit block on the main component.

[0015] In some embodiments, the bracket is provided with a first protrusion for interacting with a swing arm of the main assembly of the image forming device;

[0016] A first protrusion is formed on the outer surface and protrudes along the X direction, and a reinforcing rib connected to the first protrusion is provided on the bracket; or a boss protruding along the X direction is formed on the outer surface of the bracket, the first protrusion is formed on the boss, and a reinforcing rib connected to the boss is provided on the bracket;

[0017] The first protrusion is provided with an inclination angle for interacting with a swing lever of the main assembly of the image forming apparatus, and the inclination angle is inclined relative to the X direction.

[0018] In some embodiments, a third protrusion protruding along the X direction is provided on the outer surface of the bracket, and the first elastic member is a torsion spring, which is provided on the third protrusion.

[0019] In some embodiments, a second protrusion protruding along the X direction is provided on the outer surface of the bracket;

[0020] One end of the first elastic member abuts against the power receiving portion, and the other end thereof abuts against the second protrusion;

[0021] The second protrusion is used to interact with the support block of the main assembly of the image forming apparatus to support the process cartridge;

[0022] The second protrusion is cylindrical, or arc-shaped, and reinforcement ribs are respectively provided at both ends.

[0023] In some embodiments, the outer surface below the through hole is a planar structure, and the planar structure has no structure protruding along the X direction except for the third protrusion;

[0024] A protruding block protruding downward is provided at the bottom of the outer surface, and the protruding block is used to interact with a supporting block of the main assembly of the image forming device to support the process cartridge;

[0025] A mounting hole is arranged on the outer surface, one end of the first elastic member is in contact with the power receiving portion, and the other end thereof is inserted into the mounting hole.

[0026] In some embodiments, the power receiving unit also includes a second connecting member, a first connecting member and a fixed connecting member which are sequentially connected in a transmission manner with the X direction as the central axis; the power receiving part and the second connecting member can slide relative to each other along the first direction, and the second connecting member and the first connecting member can slide relative to each other along the second direction, the first direction and the second direction are both perpendicular to the X direction, and the first direction and the second direction are perpendicular to each other; the fixed connecting member is fixedly connected to the driven component.

[0027] In some embodiments, a stop block is provided on the fixed connector, and a stop portion is fixedly provided on the first connector. The stop portion can rotate in the circumferential space outside the stop block in the fixed connector, and when the stop portion rotates to abut against the stop block, it can drive the fixed connector to rotate.

[0028] In some embodiments, the power receiving unit further includes a second elastic member, and two ends of the second elastic member are respectively connected to the fixed connecting member and the first connecting member.

[0029] In some embodiments, the power receiving unit further comprises a fixed connecting member fixedly connected to the driven component, the fixed connecting member being transmission-connected to the power receiving part; one side of the bracket facing the inside of the processing box protrudes along the X direction to form a circular ring portion, and the circular ring portion abuts against the inner circumferential wall of the fixed connecting member;

[0030] One end of the through hole is closed and the other end is open. The portion of the annular portion located at the open end of the through hole is used to limit the power receiving part to prevent the power receiving part from escaping from the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a processing box and a main assembly of Embodiment 1 of the utility model;

[0032] Figure 2It is a structural schematic diagram of a processing box according to Embodiment 1 of the present utility model;

[0033] Figure 3 This is a schematic structural diagram of a bracket and a first elastic member according to a first embodiment of the utility model;

[0034] Figure 4 This is a structural exploded view of the power receiving unit (without the first elastic member) of the first embodiment of the utility model;

[0035] Figure 5 This is a schematic structural diagram of a fixed connection member according to Embodiment 1 of the present utility model;

[0036] Figure 6 It is a schematic diagram of the relevant structure when the power receiving part of the first embodiment of the utility model is in the first position and the first circumferential position;

[0037] Figure 7 It is a schematic diagram of the relevant structure when the power receiving part of the first embodiment of the utility model is in the second position and the first circumferential position;

[0038] Figure 8 It is a schematic diagram of the relevant structure when the power receiving part of the first embodiment of the utility model is in the second position and the second circumferential position;

[0039] Fig. 9 This is a schematic diagram of the structure of the processing box of the second embodiment of the utility model.

[0040] Figure 10(a) , 10(b) This is a schematic diagram of a processing box bracket according to the second embodiment of the present utility model.

[0041] Fig.11 This is a partial schematic diagram of the second embodiment when the process cartridge is installed into the main assembly;

[0042] Fig.12 This is a partial cross-sectional schematic diagram of the second embodiment when the process cartridge is installed into the main assembly;

[0043] Fig.13 This is a schematic diagram of a processing cartridge support according to a third embodiment of the present utility model;

[0044] Fig.14 This is a schematic diagram of a processing cartridge support according to a fourth embodiment of the present utility model;

[0045] Fig.15 This is a schematic diagram of a processing box support according to a fifth embodiment of the present utility model;

[0046] Fig.16 This is a schematic diagram of a processing box support according to a sixth embodiment of the present utility model;

[0047] Fig.17This is a schematic diagram of a processing box bracket according to Embodiment 7 of the present utility model. DETAILED DESCRIPTION

[0048] The utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0049] It should be noted that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] In the above description, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Embodiment 1

[0054] See also Figure 1 The image forming apparatus of this embodiment includes a main assembly 1. A process cartridge 2 is detachably mounted in the main assembly 1 of the image forming apparatus.

[0055] In this embodiment, a three-dimensional rectangular coordinate system is established, with the length direction of the processing box 2 as the X-axis, the +X direction toward the driving end of the processing box 2, the -X direction toward the non-driving end of the processing box 2, and the installation direction of the processing box 2 as the Y-axis, wherein the installation direction of installing the processing box 2 from the outside to the main component 1 of the image forming device is +Y, the disassembly direction is -Y, and the remaining is the Z-axis, with the +Z direction roughly upward and the -Z direction roughly downward.

[0056] The main assembly 1 of the image forming apparatus has two opposite inner walls, one of which is equipped with a driving member 11 for outputting power to the processing box 2, and the other inner wall is not equipped with the driving member 11. Guide rails 15 for assisting the installation of the processing box 2 are provided on both inner walls, and are arranged along the Y direction. Figure 1 In the enlarged view of the main assembly 1, a swing rod 12, a stopper 13 and a support block 14 are provided on the inner wall of one side where the driving member 11 is installed. The driving member 11 is arranged below the guide rail 15 and is used to output power to the processing box 2. The first end of the swing rod 12 is hinged to the inner wall of the main assembly 1, and the second end thereof is arranged above the driving member 11 to protect the driving member 11. The stopper 13 is arranged on one side of the driving member 11, and the support block 14 is arranged below the driving member 11.

[0057] See also Figure 2, one end of the processing box 2 for receiving the drive of the main component 1 is the driving end, which is the end close to the +X direction in this embodiment, and the other end is the non-driving end, which is the end close to the -X direction in this embodiment. The processing box 2 includes a frame, a photosensitive drum and a developing roller rotatably arranged on the frame, and a power receiving unit for receiving the driving force of the main component 1 and transmitting the driving force to the driven part of the processing box 2. The driven part can be a photosensitive drum, a developing roller or other parts that need to be driven directly or indirectly, which is a photosensitive drum in this embodiment. The photosensitive drum and the developing roller are rotatably arranged on the frame along the X direction respectively. The frame includes a box body 3 and a bracket 4, the photosensitive drum is arranged in the box body 3, and the bracket 4 is fixedly arranged at the driving end of the box body 3.

[0058] See also Figure 3 The side of the bracket 4 facing the outside of the processing box forms an outer surface 45, and the outer surface 45 is provided with a first protrusion 41, a second protrusion 42, a third protrusion 43 and a through hole 44, wherein the first protrusion 41, the second protrusion 42, and the third protrusion 43 protrude relative to the outer surface 45 along the X direction. The first protrusion 41 is used to interact with the swing rod 12 of the main component 1. When the processing box 2 is installed, the first protrusion 41 is used to push open the second end of the swing rod 12, so that the driving member 11 is exposed, which is convenient for connecting with the power receiving unit. In some embodiments, the first protrusion 41 is an arc-shaped sheet structure extending roughly along the Y direction, and an inclination angle 411 is set at one end close to the -Y direction. The inclination angle 411 is inclined relative to the X direction. The inclination angle 411 is used to push open the second end of the swing rod 12 when the processing box 2 is installed, and it is also convenient for the processing box 2 to be disassembled from the second end of the swing rod 12. The second protrusion 42 is used to be placed above the support block 14 of the main component 1 when the processing box 2 is installed, so as to support the processing box 2. The third protrusion 43 is used to set the first elastic member 61 of the power receiving unit. The through hole 44 is used for the movement of the power receiving part 62 of the power receiving unit. Preferably, both ends of the through hole 44 are closed to prevent the power receiving part 62 from detaching. The bracket 4 is roughly arranged on the YZ plane, and the side close to the +X direction is the outer surface 45. The outer surface 45 does not interfere with the limit block 13 of the main component 1. The outer surface 45 is separated from the limit block 13 by a certain distance in the X direction and does not contact. In some embodiments, the outer surface 45 of the bracket 4 is also provided with a reinforcing rib 46 for increasing the strength of the first protrusion 41. There are two reinforcing ribs 46 in this embodiment.

[0059] See also Figure 4The power receiving unit includes a first elastic member 61, a power receiving part 62, a second connecting member 63, a first connecting member 64, a second elastic member 65 and a fixed connecting member 66. The power receiving part 62 is used for transmission in combination with the driving member 11 of the main component 1. The power receiving part 62, the second connecting member 63, the first connecting member 64 and the fixed connecting member 66 are sequentially connected in transmission and their central axes are all arranged along the X direction. The fixed connecting member 66 is fixedly connected to one end of the photosensitive drum.

[0060] The power receiving part 62 and the second connecting member 63 can slide relative to each other along the first direction, and the second connecting member 63 and the first connecting member 64 can slide relative to each other along the second direction, and the first direction intersects with the second direction. In this embodiment, the first direction and the second direction are arranged along the YZ plane, that is, the first direction and the second direction are both perpendicular to the X direction, and the first direction and the second direction are perpendicular to each other, that is, the power receiving part 62, the second connecting member 63 and the first connecting member 64 are sequentially connected to form a cross-slot coupling structure. Specifically, the end of the power receiving part 62 close to the +X direction is the receiving end, which is used to be combined with the drive member 11 for transmission, and the end of the power receiving part 62 close to the -X direction is the output end, and the first transmission part 622 is arranged on the output end, and the end of the second connecting member 63 close to the +X direction is the receiving end, which is provided with a second transmission part 631 adapted to the first transmission part 622, so that the power receiving part 62 is connected to the second connecting member 63 for transmission, and the first transmission part 622 and the second transmission part 631 can slide relative to each other. In this embodiment, the first transmission part 622 is a straight strip protrusion, and the second transmission part 631 is a straight strip groove. The end of the second connecting member 63 close to the -X direction is the output end, and the third transmission part 632 is arranged on the output end. The end of the first connecting member 64 close to the +X direction is the receiving end, and the receiving end is provided with a fourth transmission part 641 adapted to the third transmission part 632, so that the first connecting member 64 is connected to the second connecting member 63 in transmission connection, and the third transmission part 632 and the fourth transmission part 641 can slide relative to each other. In this embodiment, the third transmission part 632 is a straight strip groove, and the fourth transmission part 641 is a straight strip protrusion. The first transmission part 622, the second transmission part 631, the third transmission part 632 and the fourth transmission part 641 are all arranged on the YZ plane, wherein the direction of the first transmission part 622 and the second transmission part 631 is perpendicular to the direction of the third transmission part 632 and the fourth transmission part 641.

[0061] The end of the first connecting member 64 close to the -X direction is the output end, and a stopper 642 and a mounting shaft 643 are provided on the output end. The stopper 642 is arranged on the YZ plane, and is used for transmission connection with the fixed connecting member 66. In this embodiment, there are two stoppers 642, which are symmetrically arranged relative to the X axis, and their central axes coincide, and the central axes of the two stoppers 642 are perpendicular to the direction of the fourth transmission part 641. The mounting shaft 643 is arranged along the X direction and is rotatably arranged in the central hole 661 of the fixed connecting member 66.

[0062] See also Figure 5 The fixed connecting member 66 is cylindrical, and a gear is provided on its circumferential outer wall, which is used to transmit power to other components of the processing box 2, such as transmitting power to the developing roller. The end of the fixed connecting member 66 close to the -X direction is the output end, which is fixedly connected to the end of the photosensitive drum, and the end of the fixed connecting member 66 close to the +X direction is the receiving end, which is hollow inside and has a stopper 662 disposed therein, which is used to interact with the stopper 642 of the first connecting member 64 to transmit power. In this embodiment, there are two stoppers 642, which are arranged on the YZ plane and symmetrically arranged relative to the X axis. The stop portion 642 of the first connecting member 64 can rotate in the circumferential space 663 outside the stop block 662 in the fixed connecting member 66. The circumferential space 663 is divided into two fan-shaped spaces by the two stop blocks 662. Each stop portion 642 rotates in the corresponding fan-shaped space. When the stop portion 642 rotates to abut against the stop block 662, it can drive the fixed connecting member 66 to rotate.

[0063] The second elastic member 65 is sleeved on the outer circumferential wall of the central hole 661 of the fixed connecting member 66, and its two ends are respectively connected to the fixed connecting member 66 and the first connecting member 64. When the second elastic member 65 is in a relaxed state, the relative position of the first connecting member 64 and the fixed connecting member 66 (the circumferential relative position or the rotational relative position with the X-axis as the rotation axis) is maintained at a specific initial position by the second elastic member 65. When the first connecting member 64 rotates relative to the fixed connecting member 66 under the action of an external force such as a driving force, the second elastic member 65 accumulates force. When the external force disappears, the second elastic member 65 is released to cause the first connecting member 64 to rotate back to its initial position relative to the fixed connecting member 66. Since a cross-slot coupling structure is formed between the power receiving part 62, the second connecting member 63 and the first connecting member 64, the rotational motions among the three are synchronized, so the second elastic member 65, through the first connecting member 64 and the second connecting member 63, also enables the power receiving part 62 to be maintained at a specific initial position with the fixed connecting member 66 when not subjected to external force or driving force. Specifically, the fixed connecting member 66 is provided with a mounting slot 664, the first connecting member 64 is provided with a mounting protrusion 644, and the second elastic member 65 is specifically a torsion spring, and its two ends are respectively connected to the mounting slot 664 and the mounting protrusion 644.

[0064] See also Figure 6 The power receiving part 62 is arranged through the through hole 44 on the bracket 4, and its receiving end extends out of the through hole 44. Two coupling parts 621 are provided on the receiving end. Two driving protrusions 11b are provided on the driving member 11 of the main component 1. The coupling parts 621 are engaged with the driving protrusions 11b. The driving member 11 rotates along the driving direction (when observed from +X to -X direction, the driving direction is counterclockwise), driving the power receiving part 62 to rotate along the driving direction.

[0065] The first elastic member 61 is disposed on the bracket 4 and is used for resetting the power receiving portion 62. The first elastic member 61 is specifically a torsion spring, and its two ends are connected to the power receiving portion 62 and the second protrusion 42 respectively.

[0066] One implementation of the process of installing the processing box is as follows:

[0067] See also Figure 6 When the process cartridge 2 is installed, it moves from the outside to the installation position, and the power receiving portion 62 abuts against the driving member 11 of the main assembly 1 and cannot be combined. When the process cartridge 2 is pushed along the installation direction Y, the power receiving portion 62 is abutted by the driving member 11 and stuck in the first position. At this time, the power receiving portion 62 does not coincide with the central axis of the driving member 11, and the other parts of the process cartridge 2 (including the bracket 4) continue to be pushed along the Y direction, and the power receiving portion 62 moves relative to the through hole 44 of the bracket 4 (for example Figure 6 The power receiving portion 62 moves from the first position (eg, Figure 6 shown position) to a second position (eg Figure 7 The absolute position of the power receiving portion 62 remains unchanged, and what changes is its relative position relative to the through hole 44 of the bracket 4.

[0068] Due to the existence of the cross-slot coupling structure, the movement of the power receiving part 62 is allowed, which is specifically manifested in that the power receiving part 62 slides relative to the second connecting member 63, or the power receiving part 62 and the second connecting member 63 slide as a whole relative to the first connecting member 64, or a combination of the above two. Since the sliding allowed by the cross-slot coupling structure is a sliding in which the direction of the central axis remains unchanged (X direction), when the power receiving part 62 moves from the first position to the second position, the central axis of the power receiving part 62 moves in parallel, that is, during the movement, the central axis of the power receiving part 62 is always parallel to the X direction, that is, the situation in the prior art where the central axis of the ball-type universal joint driving member 11 swings relative to the X-axis and is tilted with the X-axis will not occur.

[0069] When the power receiving portion 62 moves from the first position to the second position, the first elastic member 61 accumulates force. Figure 7 After the process cartridge 2 is installed in place, the door of the main assembly 1 is closed, the image forming apparatus is started, the driving member 11 of the main assembly starts to rotate, and the first elastic member 61 is released so that the power receiving portion 62 moves from the second position to the first position to reset (for example Figure 7 Similarly, during this movement, the central axis of the power receiving part 62 is always parallel to the X direction. In other embodiments, other structures other than the cross slot coupling can also be used as long as the parallel movement of the central axis of the power receiving part 62 can be achieved.

[0070] During the movement of the power receiving portion 62 between the first position and the second position, the power receiving portion 62 always maintains contact with the driving member 11. Since the contact between the two may be point contact, or a small line contact or surface contact, this contact state is unstable, and the power receiving portion 62 is very easy to rotate from an initial first circumferential position (for example, Figure 7 position) to a second circumferential position (eg Figure 8 The driving member 11 is in the first circumferential position, and the driving member 11 is in the first circumferential position, so that the driving member 11 can enter the internal space between the two coupling parts 621 of the power receiving part 62, thereby realizing the combination of the power receiving part 62 and the driving member 11, that is, the central axis of the power receiving part 62 overlaps with that of the driving member 11. When the power receiving part 62 is in the first circumferential position, one of the coupling parts 621 abuts against the driving member 11, and when the power receiving part 62 rotates, the coupling part 621 will rotate to a position to avoid the driving member 11, so that the driving member 11 will not be stuck with the power receiving part 62, and the rotation of the driving member 11 along the driving direction also facilitates it to enter the internal space of the power receiving part 62 and combine with the power receiving part 62. After the combination, as the driving member 11 rotates, it rotates to a position engaged with the power receiving part 62, that is, a position where the two driving protrusions 11b of the driving member 11 are engaged with the two coupling parts 621 of the power receiving part 62, and then the driving member 11 drives the power receiving part 62 to rotate.

[0071] In this embodiment, the extension direction of the through hole 44 of the bracket 4 is set along the Y direction to facilitate the installation of the processing box 2, and the movement of the power receiving part 62 between the first position and the second position relative to the through hole 44 is also performed along the Y direction. The shape of the through hole 44 is preferably a straight line extension, and in other embodiments, it can have a slight curvature or a slight inclination relative to the Y direction.

[0072] The direction in which the power receiving portion 62 rotates when it abuts against the driving member 11 is related to the first circumferential position of the power receiving portion 62, that is, the position of the coupling portion 621 abutting against the driving member 11 relative to the driving member 11. Figure 7The circumferential position of the power receiving part 62 refers to the rotational position of the line A between its two coupling parts 621 on the YZ plane relative to the Y axis, and the angle between the first circumferential position of the power receiving part 62 and +Y is set to α.

[0073] Depending on the angle α between the first circumferential position and +Y, the installation process has the following situations:

[0074] When α=90°, that is, the power receiving part 62 is perpendicular to the Y-axis, the power receiving part 62 will not abut against the driving member 11, and the power receiving part 62 does not need to move along the through hole 44, and does not need to rotate. The driving member 11 can directly enter the internal space of the power receiving part 62 and combine with the power receiving part 62. When the image forming device is started, the driving member 11 can rotate to a position engaged with the power receiving part 62, that is, the two driving protrusions 11b of the driving member 11 are engaged with the two combining parts 621 of the power receiving part 62, and then the driving member 11 drives the power receiving part 62 to rotate.

[0075] When α is less than 90°, one of the coupling parts 621 of the power receiving part 62 may abut against the driving member 11. At this time, the driving member 11 may not be able to directly enter the internal space of the power receiving part 62. The power receiving part 62 needs to move and rotate as described above before it can be coupled with the driving member 11. After coupling, as the driving member 11 rotates, it rotates to a position engaged with the power receiving part 62, and then the driving member 11 drives the power receiving part 62 to rotate.

[0076] When α=0, the first circumferential position of the power receiving part 62 is parallel to the installation direction Y, and it is most likely that one of the coupling parts 621 of the power receiving part 62 abuts against the driving member 11, and the power receiving part 62 needs to move and rotate as described above before it can be coupled with the driving member 11. After coupling, as the driving member 11 rotates, it rotates to a position engaged with the power receiving part 62, and then the driving member 11 drives the power receiving part 62 to rotate.

[0077] If, when the process cartridge 2 is installed, α>0, that is, the coupling portion 621 is closer to the +Z direction relative to the driving member 11, the power receiving portion 62 is more likely to rotate counterclockwise. If α<0, that is, the coupling portion 621 is closer to the -Z direction relative to the driving member 11, the power receiving portion 62 is more likely to rotate clockwise (for example, Figure 7 The rotation of the power receiving portion 62 may occur during the process of the power receiving portion 62 moving from the first position to the second position relative to the through hole 44, or during the process of the power receiving portion 62 moving from the second position to the first position relative to the through hole 44, or during both processes.

[0078] The utility model arranges the power receiving part 62 and the driving member 11 of the main assembly 1 so that the central axis of the power receiving part 62 always moves in a manner parallel to the X direction to achieve the combination with the driving member 11, thereby avoiding the technical problem in the prior art that the central axis of the ball-type universal joint driving member 11 repeatedly swings relative to the X axis and is stuck with the driving member 11 during the swinging process and cannot work normally. In addition, since the power receiving part 62 moves in the through hole 44 closed at both ends, it can be prevented from being separated from the bracket 4, thereby increasing the working reliability of the processing box.

[0079] Embodiment 2

[0080] This embodiment provides another processing box, which is different from the first embodiment in that the structure of the bracket 4 is different.

[0081] like Fig. 9 As shown, the power receiving portion 62 is rotatably supported on the bracket 4 and partially exposed outside the bracket 4 for engaging with the driving member 11 on the main assembly 1 of the image forming apparatus to receive the driving force so that the photosensitive drum 21 rotates.

[0082] refer to Figure 10(a) , 10(b) , the structure of the bracket 4 of this embodiment will be described in detail. The bracket 4 can be a component independent of the box body, or can be integrally formed with the box body.

[0083] As shown in FIG. 10( a ), the side of the bracket 4 close to the photosensitive drum 21 has a snap-fitting portion 221 and an annular portion 220. The snap-fitting portion 221 is recessed toward the side away from the photosensitive drum 21 to form a groove so as to snap-fit ​​with the box body 3. The annular portion 220 is protruded toward the side close to the photosensitive drum 21 to abut against the circumferential wall of the inner hollow portion of the fixed connecting member 66. The bracket 4 is joined to the fixed connecting member 66 through the snap-fitting portion 221 and the annular portion 220. In addition, the portion of the annular portion 220 located at the open end of the through hole 44 can limit the power receiving portion 62 to prevent the power receiving portion 62 from being separated from the through hole 44 of the bracket 4 during the installation process (see FIG. 10( b)).

[0084] As shown in Figure 10(b), the bracket 4 has an outer surface 45 on one side close to the outside of the box body 3, and a through hole 44 is formed on the outer surface 45 for partially exposing the power receiving part 62 to the outside of the processing box 2. The through hole 44 is closed at one end and open at the other end, so that the power receiving part 62 slides in the through hole 44 and also engages with the driving member 11 of the main component 1.

[0085] Next, the bracket 4 is provided with a through hole 224 for engaging with the box body 3 , and the through hole 224 is combined with the structure that matches each other on the box body 3 , so that the bracket 4 is installed on the driving side bearing 12 .

[0086] In this embodiment, an arc-shaped protrusion serving as a first protrusion 41 is also formed on the outer surface 45 of the bracket 4, which is used to interact with the rocker arm 12 on the inner wall of the main component 1. During the installation of the processing box 2 into the image forming device, the first protrusion 41 lifts the rocker arm 12 so that the power receiving part 62 engages with the driving member 11, and a reinforcing rib 46 is formed on the upper edge side of the first protrusion 41. The reinforcing rib 46 is connected to the engaging through hole 224 of the box body 3 for strengthening the strength of the first protrusion 41 to prevent it from breaking.

[0087] In this embodiment, the bracket 4 is further provided with a third protrusion 43 and a second protrusion 42, and the third protrusion 43 and the second protrusion 42 are cylindrical. Among them, the third protrusion 43 has a protrusion 228 protruding radially outwardly for preventing the first elastic member 61 installed on the third protrusion 43 from falling off, and the second protrusion 42 is used to abut against the support block 14 on the main assembly on the downstream side when the processing box 2 is installed on the main assembly 1 of the image forming device to support the processing box 2, so that the processing box 2 can be installed on the main assembly 1 more smoothly, and the second protrusion 42 can also serve as an installation stop for the first elastic member 61, so that when the user removes the processing box 2 from the main assembly 1 of the image forming device, the power receiving part 62 can return to the initial predetermined position (i.e., located on the side of the through hole 44 close to the +Y direction) under the action of the first elastic member 61.

[0088] Next, we will refer to Fig.11 and Fig.12 , a detailed description is given of the structure of the process cartridge 2 mounted on the main assembly 1 of the image forming apparatus.

[0089] like Fig.11 , Fig.12 As shown, after the user installs the processing box 2 into place through the guide rail 15 on the main component 1 of the image forming device, when viewed from the driving side to the main component 1 of the image forming device, the photosensitive drum 21, the bracket 4 and the main component 1 of the image forming device are positioned in sequence, and the rocker arm 12 on the main component 1 abuts against the first protrusion 41 on the bracket 4, positioning the processing box 2 on the main component 1 of the image forming device. At this time, the outer surface 45 on the bracket 4 does not overlap with the limit block 13 on the main component in the X direction, that is, when projected from a direction perpendicular to the X direction, the projection of the outer surface 45 does not overlap with the projection of the limit block 13, and the driving member 11 of the main component 1 enters into the opening formed by the two joints 621 of the power receiving part 62 and extending toward the driving side, and is connected to the power receiving part 62.

[0090] In this embodiment, when the driving member 11 of the main component 1 starts to rotate, the driving protrusion 11b of the driving member 11 of the main component 1, which serves as the force-applying part of the rotational force, contacts the coupling portion 621 of the power receiving portion 62, and applies a rotational force to the power receiving portion 62. When the power receiving portion 62 is subjected to the rotational force, it moves in the through hole 44 (it may also move to a certain extent before being subjected to the rotational force). Under the action of the rotational force and the elastic force of the first elastic member 61, the power receiving portion 62 enters a predetermined position, combines with the driving member 11, and transmits the received driving force of the driving member 11 of the main component 1 to the fixed connecting member 66, thereby driving the photosensitive drum 21 to rotate.

[0091] The processing box 2 of this embodiment solves the problems of unstable connection between the photosensitive drum power receiving unit and the driving force transmission component and unsmooth driving transmission on the existing processing box, thereby improving the use quality of the processing box.

[0092] Embodiment 3

[0093] This embodiment provides another processing box, which is different from the second embodiment in that the structure of the bracket 4 is different.

[0094] like Fig.13 As shown, in this embodiment, no reinforcing rib 46 is provided on the side of the bracket 4 close to the outside of the box body 3, and both ends of the through hole 44 formed on the outer surface 45 are closed, so that the power receiving part 62 is not easy to detach from the bracket 4 during the sliding process in the through hole 44, thereby making the driving force transmission smoother.

[0095] There is a protruding block 227 extending outward along an arc on the side of the bracket 4 close to the third protrusion 43, that is, the bottom of the bracket 4 (roughly toward the -Z direction). When the processing box 2 is installed on the main component 1 of the image forming device, the protruding block 227 abuts against the supporting block 14 on the main component on the downstream side to support the processing box 2, so that the processing box 2 can be installed on the main component 1 more smoothly.

[0096] In addition, a stopping member 229 is provided on the right side of the protruding block 227 for stopping the first elastic member 61 installed on the third protrusion 43 .

[0097] Other operating principles and other structures not described in detail of the processing box of this embodiment are the same as those of the second embodiment and will not be described again here.

[0098] Embodiment 4

[0099] This embodiment provides another processing box, which is different from the second embodiment in that the structure of the bracket 4 is different.

[0100] like Fig.14As shown, in the present embodiment, no reinforcing rib 46 is provided on the side of the bracket 4 close to the outside of the box body, and the shape of the second protrusion 42 on the bracket 4 is no longer cylindrical, and the second protrusion 42 is a special-shaped protrusion with an arc shape, and its arc portion abuts against the support block 14 of the main component 1, supporting the processing box 2 on the downstream side, and the special-shaped protrusion is provided with reinforcing ribs at both ends of the arc portion, which can effectively strengthen the strength of the second protrusion 42, so that the second protrusion 42 is not easy to break, and the processing box 2 can be installed on the main component more stably, and at the same time, a notch portion is formed on the second protrusion 42, and the first elastic member 61 is installed on the third protrusion 43, one end of which abuts against the power receiving portion 62, and the other end is inserted into the notch portion on the second protrusion 42.

[0101] In addition, both ends of the through hole 44 formed on the bracket 4 are closed to limit the movement of the power receiving part 62 in the through hole 44 so that the power receiving part 62 is not easily detached from the bracket 4 .

[0102] Other operating principles and other structures not described in detail of the processing box of this embodiment are the same as those of the second embodiment and will not be described again here.

[0103] Embodiment 5

[0104] This embodiment provides another processing box, which is different from the fourth embodiment in that the structure of the bracket 4 is different.

[0105] like Fig.15 As shown, in this embodiment, the bracket 4 is not provided with the second protrusion 42, and the outer surface below the through hole 44 is a plane structure. In addition to the third protrusion 43, there is no other structure protruding along the X direction on the plane structure, so that when the processing box is installed in the image forming device, it is not easy for the bracket 4 to interfere with the image forming device, making the processing box unsmooth to be disassembled. A mounting hole 231 is formed on the bracket 4, and the first elastic member 61 is installed on the third protrusion 43, one end of which is inserted into the mounting hole 231, and the other end is in contact with the power receiving part 62 to form a stopper, so that the power receiving part 62 is kept in the initial predetermined position.

[0106] Other operating principles and other structures not described in detail of the processing box of this embodiment are the same as those of the second embodiment and will not be described again here.

[0107] Embodiment 6

[0108] This embodiment provides another processing box, which is different from the second embodiment in that the structure of the bracket 4 is different.

[0109] like Fig.16As shown, in this embodiment, the first protrusion 41 is not formed on the outer surface 45, and a boss 223 structure protruding to the outside of the processing box 2 is formed on the upper part of the outer surface 45, and the first protrusion 41 is formed on the boss 223; and on the side of the bracket 4 close to the outside of the box body, the reinforcing rib 46 is not connected to the first protrusion 41, but is connected to the boss 223.

[0110] Other operating principles and other structures not described in detail of the processing box of this embodiment are the same as those of the second embodiment and will not be described again here.

[0111] Embodiment 7

[0112] This embodiment provides another processing box, which is different from the sixth embodiment in that the structure of the bracket 4 is different.

[0113] like Fig.17 As shown, in this embodiment, the bracket 4 is not provided with a second protrusion 42, but a mounting hole 231 is formed on the bracket 4, and the first elastic member 61 is installed on the third protrusion 43, with one end inserted into the mounting hole 231 and the other end abutting against the power receiving part 62 to form a stopper, so that the power receiving part 62 is maintained in the initial predetermined position, and both ends of the through hole 44 formed on the bracket 4 are closed.

[0114] Other operating principles and other structures not described in detail of the processing box of this embodiment are the same as those of the second embodiment and will not be described again here.

[0115] The above are only some embodiments of the present invention. For those skilled in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, or the above technical solutions can be freely combined, including the technical features between the above different embodiments, which all belong to the protection scope of the present invention.

Claims

1. A process cartridge detachably mounted on a main assembly of an image forming device, characterized in that: include: Box body; A bracket fixed to the end of the box body, the bracket is provided with a through hole, and the side of the bracket facing the outside of the processing box forms an outer surface; A driven component, which is rotatably arranged on the box body along the X direction; as well as A power receiving unit, which is used to receive the driving force of the main assembly and transmit it to the driven component, the power driving unit includes a power receiving part and a first elastic member, the central axis of the power receiving part is arranged along the X direction, and it passes through the through hole; When the processing cartridge is moved from the outside to the installation position, the power receiving part abuts against the driving member of the main assembly of the image forming device and cannot be combined, the power receiving part can move along the extension direction of the through hole, and the central axis of the power receiving part moves parallel to the bracket from the first position to the second position, and the first elastic member accumulates force; after the processing cartridge is installed in place, the driving member rotates, and the first elastic member is released to make the power receiving part reset along the extension direction of the through hole, and the central axis of the power receiving part moves parallel to the first position from the second position to reset; During the movement of the power receiving part, the power receiving part acts on and rotates with the driving member, so that the power receiving part is combined with the driving member.

2. The process cartridge according to claim 1, wherein: The driven component is a photosensitive drum.

3. The process cartridge according to claim 1, wherein: The through hole extends along a process cartridge installation direction Y.

4. The process cartridge according to claim 1, wherein: Both ends of the through hole are closed.

5. The process cartridge according to claim 1, wherein: When projected from a direction perpendicular to the X direction, the projection of the outer surface does not overlap with the projection of the limit block on the main component.

6. The process cartridge according to claim 1, wherein: The bracket is provided with a first protrusion for interacting with a swing lever of the main assembly of the image forming device; The first protrusion is formed on the outer surface and protrudes along the X direction, and the bracket is provided with a reinforcing rib connected to the first protrusion; or, the outer surface of the bracket is formed with a boss protruding along the X direction, the first protrusion is formed on the boss, and the bracket is provided with a reinforcing rib connected to the boss; The first protrusion is provided with an inclination angle for interacting with a swing lever of the main assembly of the image forming apparatus, and the inclination angle is inclined relative to the X direction.

7. The process cartridge according to any one of claims 1 to 6, characterized in that: A third protrusion protruding along the X direction is provided on the outer surface of the bracket, and the first elastic member is a torsion spring, which is provided on the third protrusion.

8. The process cartridge according to claim 7, wherein: A second protrusion protruding along the X direction is provided on the outer surface of the bracket; One end of the first elastic member abuts against the power receiving portion, and the other end thereof abuts against the second protrusion; The second protrusion is used to interact with a support block of the main assembly of the image forming apparatus to support the process cartridge; The second protrusion is cylindrical, or the second protrusion is arc-shaped, and reinforcement ribs are respectively provided at both ends thereof.

9. The process cartridge according to claim 7, wherein: The outer surface below the through hole is a planar structure, and the planar structure has no structure protruding along the X direction except the third protrusion; The bottom of the outer surface is provided with a protruding block protruding downward, and the protruding block is used to interact with a supporting block of the main assembly of the image forming device to support the process cartridge; A mounting hole is provided on the outer surface, one end of the first elastic member abuts against the power receiving portion, and the other end thereof is inserted into the mounting hole.

10. The process cartridge according to any one of claims 1 to 6, characterized in that: The power receiving unit also includes a second connecting member, a first connecting member and a fixed connecting member which are sequentially connected with the X direction as the central axis; the power receiving part and the second connecting member can slide relative to each other along the first direction, and the second connecting member and the first connecting member can slide relative to each other along the second direction, the first direction and the second direction are both perpendicular to the X direction, and the first direction and the second direction are perpendicular to each other; the fixed connecting member is fixedly connected to the driven component.

11. The process cartridge according to claim 10, wherein: A stop block is provided on the fixed connection member, and a stop portion is fixedly provided on the first connection member. The stop portion can rotate in the circumferential space outside the stop block in the fixed connection member, and when the stop portion rotates to abut against the stop block, the fixed connection member can be driven to rotate.

12. The process cartridge according to claim 11, wherein: The power receiving unit further includes a second elastic member, and two ends of the second elastic member are respectively connected to the fixed connecting member and the first connecting member.

13. The process cartridge according to claim 1, wherein: The power receiving unit further comprises a fixed connecting member fixedly connected to the driven component, the fixed connecting member being transmission-connected to the power receiving part; one side of the bracket facing the inside of the processing box protrudes along the X direction to form a circular ring portion, the circular ring portion abuts against the inner circumferential wall of the fixed connecting member; One end of the through hole is closed and the other end is open, and the portion of the annular portion located at the open end of the through hole is used to limit the power receiving part to prevent the power receiving part from escaping from the through hole.

Images