CN216387751U

CN216387751U - Drive assembly and processing box

Info

Publication number: CN216387751U
Application number: CN202122389628.3U
Authority: CN
Inventors: 罗琴; 陈宇; 潘悦; 何辉
Original assignee: Ninestar Corp
Current assignee: Ninestar Corp
Priority date: 2020-09-30
Filing date: 2021-09-29
Publication date: 2022-04-26
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a driving assembly and a processing box. And a driving assembly provided at one end of the process cartridge detachably mounted in the electronic image forming apparatus, the driving assembly including a power receiving portion for engaging with a driving head in the electronic image forming apparatus, wherein the power receiving portion is movable from an initial position to a retracted position with respect to the hub. A processing box applies the driving component. The present invention provides a drive assembly for a process cartridge that receives power from an electronic imaging device. When the processing box is installed on the electronic imaging device, the power receiving part is meshed with the driving head, and the power receiving part moves to the retraction position from the initial position relative to the hub when being meshed, so that the power receiving part is prevented from being in rigid contact with the driving head, the fluency of the power receiving part in the process of being meshed with the driving head is greatly improved, and the service life of the processing box is prolonged.

Description

Drive assembly and processing box

Technical Field

The utility model relates to the field of laser printing, in particular to a driving assembly and a processing box.

Background

In the related art, a process cartridge is detachably mountable to an electronic image forming apparatus. A driving mechanism for outputting a rotational driving force is provided in the electronic image forming apparatus. The process cartridge generally includes a rotational force driving assembly, a developing unit, a developer, a powder control unit, and a casing accommodating the above units, and additionally, a photosensitive unit, a charging unit, a cleaning unit, an agitating unit, and the like are additionally provided according to various kinds of process cartridge structures. The rotary force driving assembly of the processing box is arranged at one end of the processing box along the axial direction of the developing unit, and the rotary driving force is transmitted to the processing box after the rotary force driving assembly is meshed with a driving mechanism in the electronic imaging device, and finally, the rotary unit (such as the developing unit, the photosensitive unit, the stirring unit and the like) in the processing box is driven to rotate to participate in the developing work of the electronic imaging device.

Before the electronic image forming apparatus performs a developing operation (i.e., printing operation), a user needs to mount the process cartridge into the electronic image forming apparatus, and the rotational force driving assembly of the process cartridge needs to be in contact with and engaged with the driving mechanism of the electronic image forming apparatus.

As shown in fig. 1 and 2, which are schematic views of a driving mechanism a500 in an electronic image forming apparatus (not shown) being in contact engagement with a driving module a100 at one end of a process cartridge, the driving module a100 is moved toward the driving mechanism a500 in a mounting direction Y1 (the mounting direction Y1 is substantially perpendicular to a rotational axis L3 of a developing unit a 10) in accordance with mounting of the process cartridge, when moved to be substantially coaxial with the driving mechanism a500, a driving pin a510 of the driving mechanism a500 is brought into abutting engagement with an engaging pawl a110 of the driving module a100 to transmit a rotational driving force to the driving mechanism a500 into the driving module a100, and finally the driving module a100 transmits the driving force to each unit of the process cartridge through a gear.

As shown in fig. 3, before the driving assembly a100 is in contact engagement with the driving mechanism a500, since the cartridge is mounted in the electrophotographic apparatus, the axial ends of the cartridge are relatively fixed by the inner wall or the guide rail in the electrophotographic apparatus, so that the cartridge cannot move in the axial direction. Similarly, the driving mechanism a500 in the electronic imaging device is designed to rotate only around its own axis and not to displace. Thus, before the driving assembly a100 is in contact engagement with the driving mechanism a500, the lowest point of the driving pin a510 for transmitting the driving force and the highest point of the engaging pawl a110 have a height difference H1, so that there is a certain probability that the engaging pawl a110 will interfere with each other in the process of moving to engage with the driving pin a 510. In the prior art, to reduce mutual structural wear or interference, the outer surface of the driving pin a510 or the engaging pawl a110 is generally configured with a certain inclined or smooth surface, and when the driving assembly a100 abuts against the driving mechanism a500, the engaging pawl a110 can be retracted along the rotating shaft L2 of the driving assembly a100 to avoid the above-mentioned structural interference.

Therefore, if there are a plurality of repeated engaging and disengaging actions of both the driving mechanism a500 and the driving assembly a100 during the mounting or dismounting of the process cartridge, it is easy to cause the structure of the driving mechanism a500 of the electronic image forming apparatus or the structure of the driving assembly a100 of the process cartridge to be worn or broken, so that it is difficult or impossible for the driving mechanism a500 and the driving assembly a100 to be stably engaged with each other and transmit power. Thus, the electrophotographic apparatus or the process cartridge cannot be used normally, and the subsequent developing quality is affected to a different extent.

SUMMERY OF THE UTILITY MODEL

According to an aspect of the present invention, there is provided a driving assembly provided at one end of a process cartridge detachably mountable to an electronic image forming apparatus, the driving assembly including:

a power receiving portion for engaging with a driving head in the electronic image forming apparatus,

wherein the power receiving portion is movable from an initial position to a retracted position with respect to the inside of the process cartridge.

The present invention provides a drive assembly for a process cartridge that receives power from an electronic imaging device. When the processing box is installed on the electronic imaging device, the power receiving part is meshed with the driving head, and the power receiving part moves to the retraction position from the initial position relative to the hub when being meshed, so that the power receiving part is prevented from being in rigid contact with the driving head, the fluency of the power receiving part in the process of being meshed with the driving head is greatly improved, and the service life of the processing box is prolonged.

In some embodiments, the drive assembly further comprises

The pressing piece is provided with a limiting part;

a sliding part connected with the pressing part through a connecting component,

in the initial position, the urging member causes the connecting member to be in a tilted state.

Therefore, the connecting component is in an inclined state when the connecting component is at the initial position by the pressing piece, the time required by the inward retraction process of the power receiving part can be shorter, and the time for engaging the driving assembly with the driving head can be saved.

In some embodiments, the pressing member includes a receiving portion, a shaft hole, and a limiting portion, an end of the connecting member is connected to the shaft hole, and the limiting portion is provided with an inwardly inclined pressing surface;

the upper surface of the sliding part is provided with a through hole, the sliding part is provided with an inclined sliding surface, the middle of the sliding part is provided with a sliding groove, and the connecting component is arranged in the sliding groove;

after the slider is installed in the accommodating part, the pressing surface is abutted against the inclined sliding surface, the limiting part fixes the slider, the connecting member is in an inclined state, and the slider can move along with the connecting member and slide relative to the pressing part.

Thereby, the presser and the slider are connected as described above, and the slider can be slid together with the connecting member relative to the presser by the above-described structure.

In some embodiments, the urging member is fitted in the slide groove through the shaft hole and is in translational sliding engagement with the connecting member; the power receiving part passes through the through hole of the sliding part through the connecting part and is installed in the sliding part, and the limiting surface is abutted against the upper surface of the sliding part; the connecting piece penetrates through a notch at one end of the connecting part, a protruding part in the middle of the connecting piece is positioned in the notch, and two ends of the connecting piece are placed in limiting sliding grooves arranged in the wheel hub; the elastic piece is placed in the inner cavity of the hub, one end of the elastic piece is abutted against the bottom surface of the inner cavity, and the other end of the elastic piece is abutted against two ends of the connecting piece.

Thus, the assembly relationship between the various parts of the drive assembly is as described above.

In some embodiments, the driving assembly further comprises an elastic member, one end of the elastic member abuts against the connecting member, and two ends of the connecting member are located in the limiting sliding grooves;

when the connecting piece can carry out elastic movement along the limiting sliding groove, the power receiving part also carries out axial telescopic movement relative to the hub along the axis direction.

Therefore, the power receiving part is kept in an outward extending state by the elastic force of the elastic piece under the condition that the power receiving part is not acted by external force.

In some embodiments, when the power receiving portion is in contacting engagement with the drive head,

the driving head is abutted against the power receiving part so that the power receiving part retracts inwards relative to the hub, and the axis of the power receiving part is parallel to the axis of the hub.

Therefore, the axial direction of the power receiving part is always kept approximately parallel to the axial direction of the hub, the time required by the inward retraction process of the power receiving part can be shortened, and the time for the engagement of the driving assembly and the driving head can be saved.

In some embodiments, the drive assembly further comprises a control mechanism, an end portion of the process cartridge being provided with a guide member for mounting and positioning the process cartridge in the main body of the electronic image forming apparatus, a portion of the control mechanism being located on the guide member, the control mechanism controlling the power receiving portion to move in an axial direction along which the power receiving portion rotates.

Thus, and a part of the control mechanism can be located on the guide member, the same guiding function as the guide member can be performed, that is, the control mechanism can further perform the guiding function of mounting the process cartridge into the main body of the electronic image forming apparatus in addition to the control of the axial movement of the power receiving portion.

In some embodiments, the electronic imaging device has a rotating member in a main body thereof, and the process cartridge is mounted on the rotating member.

Therefore, the rotating element can bear the processing box and drive the processing box to rotate together.

In some embodiments, the rotating element is provided with a guide rail component, the guide rail component comprises a first side wall and a second side wall, and the first side wall, the second side wall and a space N between the first side wall and the second side wall form the guide rail component; the guide member is accommodated in the guide rail member.

Thereby, the guide member is accommodated through the space N, thereby carrying the process cartridge.

In some embodiments, the control mechanism includes an abutting portion and an acting portion, the abutting portion is movable between a first position and a second position, and the power receiving portion is in a retracted state when the abutting portion is moved to the second position.

Thus, when the abutting portion receives a force from the outside of the process cartridge, an external force can directly or indirectly act on the abutting portion, so that the abutting portion can move relative to the process cartridge to move to the second position.

In some embodiments, the control mechanism further comprises a resilient portion that urges the abutment portion to remain in the first position.

The elastic acting member is compressed by the movement of the clamping portion to generate elastic deformation, and then when the force applied to the abutting portion is removed, the abutting portion moves towards the first position of the initial state under the elastic restoring force of the elastic portion.

In some embodiments, the power receiving portion is provided with a pawl and the drive head is provided with a drive post, the pawl in abutting engagement with the drive post.

Thereby, the protruding claw is in abutting engagement with the driving post, and the power receiving portion is in power connection with the driving head, thereby receiving the driving force.

In some embodiments, the power receiving portion is provided with a connecting portion, one end of the connecting portion is provided with an engaging portion for engaging with the driving head, the other end of the connecting portion is provided with a notch and a limiting surface, and the convex claw is arranged at one end of the engaging portion.

Thus, the power receiving portion is configured as described above.

According to an aspect of the present invention, there is also provided a process cartridge detachably mountable to an electronic image forming apparatus, the process cartridge having a driving assembly therein.

The utility model also provides a processing box applying the driving assembly.

The power receiving part and the driving head can be stably engaged with each other, and the rotating driving force is effectively transmitted to the processing box to participate in the developing work of the electronic imaging device. Meanwhile, the phenomenon that the processing box shakes during operation due to uneven stress of the power receiving part in the process of receiving power is avoided. The hard contact between the power receiving part and the driving head is avoided, the smoothness of the power receiving part and the driving head in the meshing process is improved, and the service life of the processing box is prolonged.

Drawings

Fig. 1 is a schematic structural view of a driving assembly of a process cartridge and a driving mechanism of an electrophotographic apparatus in the related art.

Fig. 2 is a schematic structural view of a driving assembly of a process cartridge and a driving mechanism of an electrophotographic apparatus in the related art.

Fig. 3 is a schematic diagram of the operation of a prior art drive assembly before it is brought into contact engagement with a drive mechanism.

Fig. 4 is a sectional view showing a process cartridge according to an embodiment of the present invention.

FIG. 5 is a schematic view of a driving assembly of the process cartridge according to an embodiment of the present invention.

Fig. 6 is an exploded view of a driving assembly of the process cartridge according to an embodiment of the present invention.

FIG. 7 is a block diagram of a pressing member of a drive assembly according to an embodiment of the present invention.

Fig. 8 is a structural view of a slider of a driving assembly according to an embodiment of the present invention.

Fig. 9 is a schematic view showing an assembly structure of the pressing member and the slider according to an embodiment of the present invention.

Fig. 10 is a structural view of a power receiving part according to an embodiment of the present invention.

FIG. 11 is a cross-sectional view of a driving assembly according to an embodiment of the present invention.

Fig. 12 is a schematic view showing the process cartridge according to the embodiment of the present invention moving toward the driving head in the direction Y1.

Fig. 13 and 14 are schematic views showing the contact engagement of the power receiving portion of the process cartridge and the driving head of the electrophotographic apparatus according to the embodiment of the present invention.

Fig. 15 is a schematic perspective view of a process cartridge mounted in a main body of an electronic image forming apparatus according to another embodiment of the present invention.

Fig. 16 is a schematic structural view of a first rotating element C1 in the main body of an electronic imaging device according to another embodiment of the utility model.

Fig. 17 is a schematic structural view of a second rotating element C2 in the main body of an electronic imaging device according to another embodiment of the utility model.

Fig. 18 is a partial schematic view of a process cartridge according to another embodiment of the present invention mounted in the main body of an electronic image forming apparatus at the first rotating member C1.

Fig. 19 is a partial schematic view of a process cartridge according to another embodiment of the present invention mounted in the main body of an electronic image forming apparatus at the first rotating member C1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In the present invention, the axial direction of the process cartridge is coaxial or parallel to the rotational axis of the developing unit or the transfer unit.

Example one

Fig. 4 to 14 schematically show a process cartridge B according to an embodiment of the present invention.

Specifically, fig. 4 is a sectional structural view of the process cartridge of the present invention. As shown in fig. 4, the process cartridge B includes a developing chamber B100, a developer T is stored in the developing chamber B100, a powder control unit 20 is fixedly disposed on a surface of the developing chamber B100, and the developing unit 10 is rotatably mounted on the developing chamber B100. The driving assembly 200 is mounted on one end of the developing hopper B100 of the process cartridge B.

In addition, according to different similar structures of the process cartridge B, a housing 91 and an internally provided cleaning unit 60, a photosensitive unit 40, and a charging unit 50 are additionally provided.

FIG. 5 is a schematic view showing a driving assembly of the process cartridge according to the present invention. Fig. 6 is an exploded view of a driving assembly of the process cartridge of the present invention. As shown in fig. 5 and 6, the driving assembly 200 includes a power receiving portion 210, a pressing member 220, a slider 230, an elastic member 250, a connecting member 260, and a hub 270, wherein the pressing member 220, the slider 230, the elastic member 250, and the connecting member 260 constitute a control assembly.

Fig. 7 is a structural view of a pressing member of the driving unit of the present invention. Fig. 8 is a structural view of a slider of the drive assembly of the present invention. Fig. 9 is a schematic view showing an assembled structure of the pressing member and the slider in the present invention. As shown in fig. 7 to 9, the pressing member 220 is a hollow frame structure, and the pressing member 220 includes: the accommodating part 221, the shaft hole 222 and the limiting part 223 with an inward inclined pressing surface 223a, wherein the limiting part 223 is a semi-surrounding structure. The sliding member 230 has a trapezoidal structure with a narrow top and a wide bottom, the upper surface of the sliding member 230 is provided with a through hole 234, the side surface of the sliding member 230 is provided with an inclined sliding surface 231, the middle of the sliding member 230 is provided with a sliding slot 232, and the lower surface of the sliding member 230 is further provided with a convex portion 233.

Specifically, the urging member 220 is connected to the slider 230 by a connecting member 230a, preferably provided as a crank member, see fig. 8. Further, the connection member 230a is fitted into the slide groove 232 of the slider 230, the end of the connection member 230a is connected with the shaft hole 222 of the pressing member 220, when the slider 230 is fitted into the receiving portion 221 of the pressing member 220, the pressing surface 223a abuts against the inclined sliding surface 231 while the slider 220 is fixed by the stopper portion 223 so that the connection member 230a is in an inclined state, and the slider 230 can move together with the connection member 230a and slide with respect to the pressing member 220.

Fig. 10 is a structural view of a power receiving portion of the present invention. As shown, the power receiving portion 210 has a connecting portion 216, an engaging portion 213 disposed at one end of the connecting portion 216 for engaging with the driving head 900, a notch 215 disposed at the other end of the connecting portion 216, and a limiting surface 212, wherein one end of the engaging portion 213 includes a pair of claws 211 for abutting and engaging with the driving post 910 of the driving head 900.

As shown in fig. 11, the assembly relationship between the various parts of the drive assembly 200 is: the presser 220 is in translational sliding engagement with a connecting member 230a mounted in a slide groove 232 of the slider 230 through the shaft hole 222; the power receiving portion 210 is mounted in the slider 230 through the through hole 234 of the slider 230 by the connecting portion 216, with the stopper surface 212 abutting against the upper surface of the slider 230; the link 260 passes through the notch 215 at one end of the link 216, a portion of the link 260 protruding from the middle thereof is positioned in the notch 215, and both ends of the link 260 are placed in the limit slide groove 273 built in the hub 270 to drive the hub 270 to rotate after the power receiving part 210 receives the driving force; the resilient member 250 is placed in the cavity 272 of the hub 270 with one end of the resilient member 250 resting against the bottom surface 275 of the cavity 272 and the other end resting against both ends of the connector 260.

The above-mentioned components are engaged with each other to be integrally assembled to one side of the process cartridge B, and referring to fig. 5 and 6, the hub 270 transmits the driving force to the gear 15 and operates the developing unit 10, the end cap 290 covers the sliding member 230, the power receiving portion 210 extends outward from the through hole 299 of the end cap 290, the stopper 223 of the pressing member 220 is vertically slidably engaged with the sliding surface 291 of the end cap 290, and finally, the end cap 290 is fixed to one side of the process cartridge B by means of screws, gluing, welding, or the like, so as to prevent the driving unit 200 from being removed from the process cartridge B.

According to the above, one end of the elastic member 250 abuts against the connecting member 260 and both ends of the connecting member 260 are located in the limiting sliding grooves 273 so that the connecting member 260 can elastically move along the limiting sliding grooves 273, the power receiving part 210 connected to the connecting member 260 can also axially extend and contract relative to the hub 270, and similarly, due to the connection between the sliding member 230 and the power receiving part 210 and the connection between the pressing member 220 and the sliding member 230, the sliding member 230 and the pressing member 220 can also move together with the extending and contracting movement of the power receiving part 210.

The process of contacting and engaging the power receiving portion of the cartridge with the driving head of the electrophotographic apparatus will be described (for the sake of understanding the operation of the power receiving portion 210 in the hub 270, some components of the driving assembly 200 are not shown).

As shown in fig. 12 to 14, after the process cartridge B is mounted in the electrophotographic apparatus, the motor in the electrophotographic apparatus pushes the process cartridge B as a whole in the direction Y1 toward the drive head 900, and the power receiving portion 210 moves along with it and approaches the drive head 900. When the power receiving portion 210 is not subjected to an external force, the elastic force of the elastic member 250 keeps the power receiving portion 210 in an outward extending state, and at this time, the power receiving portion 210 is in an initial position, and since the pressing surface 223 of the pressing member 220 abuts against the inclined sliding surface 231, and at the same time, since the limiting portion 223 fixes the slider 220, the connecting member 230a is in an inclined state, and at this time, an included angle between an axis of the connecting member 230a and an axis of the power receiving portion 210 is R1.

When the claw 211 forms structural interference with the driving column 910 in the process of contact engagement, as the process cartridge B continues to move, the driving head 900 abuts against and engages with the power receiving portion 210, after receiving the pressure F applied by the driving head, moves in the direction opposite to the direction Y1 and retracts inward relative to the hub 270, and at the same time, drives the sliding member 230 fixedly engaged with the power receiving portion 210 to move downward and compress the elastic member 250, at this time, the connecting member 230a installed in the sliding member 230 moves along with it, at this time, the power receiving portion 210 is in the retracted position, the included angle between the axis of the connecting member 230a and the axis of the power receiving portion 210 is R2, the included angle R2 in the retracted position is larger than the included angle R1 in the initial position, as the power receiving portion 210 retracts inward, the claw 211 can avoid structural interference with the driving column 910, and when the process cartridge B is pushed into place, the power receiving part 210 is outwardly extended by the elastic force of the elastic member 250 to be engaged with the driving head 900 to receive the driving force of the rotation. The axial direction of the power receiving part 210 is always kept approximately parallel to the axial direction of the hub during the movement of the power receiving part 210, and the connection member 230a is in an inclined state at the initial position due to the pressing member 220, so that the structure design can shorten the time required by the inward retraction process of the power receiving part 210, save the time for the engagement of the driving assembly 200 and the driving head 900, and greatly improve the smoothness of the engagement process of the driving assembly 200 and the driving head 900 and the service life of the processing box.

Example two

The second embodiment is substantially the same as the first embodiment, except that: in the first embodiment, the power receiving portion 210 is controlled by a control assembly consisting of the pressing member 220, the sliding member 230, the elastic member 250 and the connecting member 260. In the present embodiment, the control mechanism 280 is used to control the power receiving unit 210.

As shown in fig. 15 to 19, the present embodiment provides a process cartridge 100 including a casing 101, a first end cap 110 and a second end cap 120 provided at both ends of the casing 101 in a longitudinal direction, a developing roller 130, a powder discharge blade 140 erected in the casing 101, and a developer (not shown) stored in the casing 101, the developer in the casing 101 controlling a uniform layer of developer formed on a surface of the developing roller 130 via the powder discharge blade 140 for forming a developed image on a photosensitive member (not shown) butted against the developing roller. The driving assembly 200 is further provided at one end portion of the process cartridge 100, and specifically, the driving assembly 200 according to the present embodiment is provided on the first end cap 110, and the driving assembly 200 includes at least a power receiving portion 210 and a control mechanism 280 for controlling the movement of the power receiving portion 210 in the direction of the rotation axis thereof. A guide member 290 for mounting and positioning the process cartridge 100 in the main body of the electronic image forming apparatus is further provided on the first end cap 110 and the second end cap 120, respectively, and further, the control mechanism 280 is provided on the first end cap 110, and a part of the control mechanism 280 may be provided on the guide member 290, and may perform the same guiding function as the guide member 290, that is, the control mechanism 280 may further perform the guiding function of mounting the process cartridge in the main body of the electronic image forming apparatus in addition to controlling the axial movement of the power receiving portion 210.

The process cartridge according to the present application is detachably mountable to an electronic image forming apparatus, as shown in fig. 16 and 17, provided therein are a first rotating member C1 and a second rotating member C2 which can carry the process cartridge and bring the process cartridge to rotate together, and the first rotating member C1 and the second rotating member C2 are provided at left and right sides in a main body of the electronic image forming apparatus corresponding to both ends of the process cartridge 100, respectively, and in the present embodiment, the first rotating member C1 and the second rotating member C2 can span four process cartridges in total by cooperating with the left and right ends of the process cartridge, each of which carries a developer of a different color for developing a color image. A first guide rail part C01 and a second guide rail part C02 for mounting the process cartridge 100 may be provided on the first rotating element C1 and the second rotating element C2, respectively, and both ends thereof are mounted into the first rotating element C1 and the second rotating element C2 from the outside of the first rotating element C1 and the second rotating element C2, respectively, taking the fitting at the first guide rail part C01 as an example, the first guide rail part C01 is a structure having a guiding and carrying function constituted by at least one side wall and a peripheral space thereof, as shown in fig. 18, the first guide rail part C01 includes a first side wall C011 and a second side wall C012, the first guide rail part C01 is constituted by the first side wall C011 and the second side wall C012 and a space N therebetween, the guide part 290 is accommodated by the space N, and the first side wall C011 and the second side wall C012 are in contact with an outer periphery of the guide part 290 in two opposite directions, the guiding member 290 is guided and limited by the guiding member 290, the first guiding member C01 is engaged with the guiding member 290 on the first end cap 110, the guiding member 290 is inserted into the first guiding member C01 and slides along the first guiding member C01 toward the rotation center Q of the first rotating member C1, until reaching a predetermined position, the guiding member 290 is locked with the first guiding member C01 by a locking structure (not shown) so as not to be easily separated toward the outside of the first rotating member C1, and the process cartridge 100 is successfully installed in the main body of the electronic image forming apparatus and can move on the rotation circumference along with the rotation of the first rotating member C1 and the second rotating member C2, when moving the process cartridge to a specific position near the driving head 900 of the electronic image forming apparatus, when the operation of the process cartridge needs to be switched, the first rotating element C1 and the second rotating element C2 can further drive the process cartridge to rotate so as to move on the rotating circle, so that a relative displacement is generated between the engaged power receiving part 210 and the driving head 900, so that the two parts are disengaged, and then the pre-switched process cartridge is switched to the specific position, and the engaging operation is repeated.

According to the structure of the control mechanism on the process cartridge of the present embodiment, as shown in fig. 18, the control mechanism 280 may be disposed on the first cover 110, and a portion of the control mechanism 280 may be located on the guide member 290, the control mechanism 280 at least includes an abutting portion 281 and an acting portion 283, and may further include an elastic portion 282, the abutting portion 281 has a first position and a second position, when the abutting portion 281 is not subjected to a force, i.e., in an initial state (first state), the elastic portion 282 causes the abutting portion 281 to tend to be held at the first position, in this embodiment, the elastic portion 282 acts on the abutting portion 281 to extend the abutting portion 281 to an extended position of the process cartridge or the guide member 290, and the elastic portion 282 is in an extended state.

When the abutting portion 281 is subjected to a force from the outside of the process cartridge, an external force may directly or indirectly act on the abutting portion 281, so that the abutting portion 281 may move relative to the process cartridge, and move to a second position, in this embodiment, the second position is a retracted position in which the abutting portion 281 is retracted into the process cartridge or the guide member 290 by the external force, and at this time, the elastic portion 282 is compressed and deformed, and the abutting portion 281 is in the second state. The movement of the abutting portion 281 to the second position allows the abutting portion 281 to transmit the external force to the acting portion 283, and then to transmit the force to the power receiving portion 210 via the acting portion 283, so that the power receiving portion 210 extends and contracts toward the inside of the process cartridge along the direction of the rotation axis thereof. Specifically, the acting portion 283 may be connected to or integrally formed with the abutting portion 281, for example, a link structure integrally formed with the abutting portion 281, the abutting portion 281 and the acting portion 283 are connected by a connecting portion (not shown) provided with a support hole, the support hole is sleeved by a support pillar (not shown) inside the first end cover 110, the connecting portion is erected inside the first end cover 110, and the abutting portion 281 and the acting portion 283 are fixed at both ends of the connecting portion, thereby erecting the link structure inside the first end cover 110. The power receiving portion 210 is sleeved with a force receiving portion (not shown) for receiving the acting force transmitted by the abutting portion 281, the force receiving portion has a force receiving surface, in this embodiment, the force receiving surface of the force receiving portion is a force receiving inclined surface, the end of the abutting portion 281 is provided with a force applying inclined surface matched with the inclined surface, after the acting force from the abutting portion 281 acts on the force receiving portion through the matching of the force applying inclined surface and the force receiving inclined surface, the force receiving portion is pushed to move along the axial direction of the power receiving portion 210, according to this embodiment, the force receiving portion moves towards the inside of the processing box along the axial direction, in addition, a clamping portion (not shown) such as a clamping spring, a shaft pin or a step surface is further arranged on one side of the middle portion (not shown) of the power receiving portion 210, which is located near the processing box, so that the clamping portion can be abutted to the clamping portion when the force receiving portion moves under force and drive the power receiving portion 210 to move axially towards the inside of the processing box together, therefore, the force applied on the abutting part 281 acts on the power receiving part 210 and drives the power receiving part 210 to retract towards the axial direction in the processing box, and at the moment, the abutting part 281 moves to the second position, and the power receiving part 210 is in a retracted state. An elastic acting member (not shown) is further disposed between the power receiving portion 210 and the mounting portion such as a gear for accommodating the power receiving portion 210, the elastic acting member is used for abutting against the power receiving portion 210 to apply an acting force to the power receiving portion 210 to extend to the outside of the process cartridge, in this embodiment, the elastic acting member abuts between the engaging portion and the bottom surface of the gear, when the force receiving portion is moved by a force, the force receiving portion can abut against the engaging portion and drive the power receiving portion 210 to move axially towards the inside of the process cartridge, the engaging portion is moved to compress the elastic acting member to generate elastic deformation, so that when the force applied to the abutting portion 281 is cancelled, the abutting portion 281 moves towards the first position of the initial state under the elastic restoring force of the elastic portion 282, and at the same time, the canceling force which is transmitted to the force receiving portion to move axially towards the inside of the process cartridge is cancelled, the force compressed on the elastic acting member at this time, the elastic acting member is elastically restored, and the elastic restoring force of the elastic acting member causes the power receiving portion 210 to axially extend in the direction of the outside of the process cartridge in the case where the gear bottom portion is axially fixed, and then, at this time, the abutting portion 281 moves to the first position, and the power receiving portion 210 is restored to the initial extended state.

Further, regarding the above-mentioned force applied to the abutting portion 281, in the process of the first rotating element C1 and the second rotating element C2 moving the process cartridges on the abutting portion 281 on the rotation circumference or moving the process cartridges toward the driving head 900 of the electronic image forming apparatus, when the interference between the power receiving portion 210 and the driving head 900 occurs, for example, the interference between the protrusions of the power receiving portion 210 and the shaft pins of the driving head 900 due to the phase causes therebetween, the power receiving portion 210 and the driving head 900 cannot be smoothly engaged, the process cartridges cannot smoothly rotate in the M direction following the first rotating element C1 and the second rotating element C2 in time due to the force of the interference, and thus, a phenomenon as shown in fig. 19 occurs, and in the rail member C01, the first side wall C011 presses the abutting portion 281 on the guide member 290 in the M direction, and a compression elastic part 282, thereby realizing the above-mentioned axial movement of the driving power receiving part 210. When the power receiving portion 210 and the driving head 900 are engaged, the process cartridge can be mounted in the first rotating element C1 and the second rotating element C2 in an adaptive manner, the first side wall C011 does not press the abutting portion 281 of the guide member 290 in the M direction, the force applied to the abutting portion 281 is cancelled, the abutting portion 281 moves to the first position, and the power receiving portion 210 returns to the initial extended state.

When the power receiving portion 210 and the driving head 900 are disengaged, the above-mentioned process is also applied, that is, when, for example, the protrusion of the power receiving portion 210 and the shaft pin of the driving head 900 are abutted, the power receiving portion 210 and the driving head 900 cannot be smoothly disengaged due to interference between the two caused by phase, the process cartridge cannot smoothly rotate in the M direction following the first rotating element C1 and the second rotating element C2 in time due to the force of the interference, and thus, the phenomenon shown in fig. 19 occurs again, and in the guide rail member C01, the first side wall C011 presses the abutting portion 281 on the guide member 290 again in the M direction and compresses the elastic portion 282, thereby achieving the above-mentioned axial movement of the power receiving portion 210. When the power receiving portion 210 and the driving head 900 are disengaged, the process cartridge can smoothly rotate in the M direction following the first rotating element C1 and the second rotating element C2, the first side wall C011 does not press the abutting portion 281 on the guide member 290 in the M direction, the force received on the abutting portion 281 is cancelled, the abutting portion 281 moves to the first position, and the power receiving portion 210 returns to the initial projecting state.

Further, for the different arrangement of the abutting portion 281 of the control mechanism 280, it may be caused that the direction of the force may be substantially the same as the direction of the rotating direction M of the first rotating member C1 and the second rotating member C2 in the main assembly of the electronic image forming apparatus, or may be substantially opposite to the direction of the rotating direction M of the first rotating member C1 and the second rotating member C2 in the main assembly of the electronic image forming apparatus, which arrangement may not be limited herein. The rotation direction of the first rotating element C1 and the second rotating element C2 may be opposite to the direction M, the external force source of the abutting portion 281 may be pressed by the first side wall C011, the second side wall C012, or other wall surfaces of the rail member C01 through the abutting portion 281, which are determined by the rotation direction of the first rotating element C1 and the second rotating element C2, the arrangement structure of the abutting portion 281, and the matching structure of the rail member C01 and the abutting portion 281, and are caused by the interference of the engagement or disengagement of the power receiving portion 210 and the driving head 900. In addition, the elastic portion 282 may be provided without limitation, for example, the elastic portion 282 may be provided inside the first end cover of the process cartridge without being provided at the rail member C01, and the elastic portion 282 may be eliminated when the abutting portion 281 itself has elastic deformation and elastic restorability.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims

1. A driving assembly provided at one end of a process cartridge detachably mountable to an electrophotographic apparatus, comprising:

wherein the power receiving portion is movable from an initial position to a retracted position with respect to an inside of the process cartridge.

2. The drive assembly of claim 1, further comprising

The pressing piece is provided with a limiting part;

a slider connected with the urging member by a connecting member,

in the initial position, the pressing member causes the connecting member to be in a tilted state.

3. The drive assembly as claimed in claim 2, wherein the pressing member includes a receiving portion, a shaft hole to which an end of the connecting member is connected, and a stopper portion provided with an inwardly inclined pressing surface;

after the sliding piece is installed in the accommodating part, the pressing surface is abutted against the inclined sliding surface, the limiting part fixes the sliding piece, the connecting member is in an inclined state, and the sliding piece can move along with the connecting member and slide relative to the pressing piece.

4. The drive assembly as claimed in claim 3, further comprising a connecting member, wherein the pressing member is installed in the slide groove through the shaft hole and slidably engaged with the connecting member;

the power receiving part passes through the through hole of the sliding part through the connecting part and is installed in the sliding part, and the limiting surface is abutted against the upper surface of the sliding part;

the connecting piece passes through the notch of connecting portion one end, the protruding part in the middle of the connecting piece is located the notch, the both ends of connecting piece are put into the built-in spacing spout of wheel hub.

5. The drive assembly of claim 4, further comprising an elastic member disposed in the inner cavity of the hub, one end of the elastic member abutting against a bottom surface of the inner cavity and the other end abutting against both ends of the connecting member, both ends of the connecting member being located in the limiting slide grooves;

when the connecting piece can elastically move along the limiting sliding groove, the power receiving part also can axially and telescopically move relative to the hub along the axial direction.

6. The drive assembly of claim 5, wherein when the power receiving portion is in contacting engagement with the drive head,

the driving head is abutted against the power receiving part to enable the power receiving part to retract inwards relative to the hub, and the axis of the power receiving part is parallel to the axis of the hub.

7. The drive assembly according to claim 1, further comprising a control mechanism, an end portion of the process cartridge being provided with a guide member for mounting and positioning the process cartridge in a main body of the electronic image forming apparatus, a part of the control mechanism being located on the guide member, the control mechanism controlling the power receiving portion to move in an axial direction of a rotation thereof.

8. The drive assembly according to claim 7, wherein the main body of the electronic image forming apparatus has a rotary member therein, and the process cartridge is mounted on the rotary member.

9. The drive assembly according to claim 8, wherein the rotating element is provided with a guide rail component, the guide rail component comprises a first side wall and a second side wall, and the first side wall, the second side wall and a space N between the first side wall and the second side wall form the guide rail component; the guide member is accommodated in the guide rail member.

10. The drive assembly as claimed in claim 9, wherein the control mechanism includes an abutment portion and an action portion, the abutment portion being movable between a first position and a second position, the power receiving portion being in a retracted state when the abutment portion is moved to the second position.

11. The drive assembly as set forth in claim 10 wherein said control mechanism further includes a resilient portion tending to maintain said abutment in the first position.

12. A drive assembly according to any one of claims 1 to 11, wherein the power receiving portion is provided with a lug and the drive head is provided with a drive post, the lug being in abutting engagement with the drive post.

13. The drive assembly according to claim 12, wherein the power receiving portion is provided with a connecting portion, one end of the connecting portion is provided with an engaging portion for engaging with the driving head, the other end of the connecting portion is provided with a notch and a limiting surface, and the pawl is provided at one end of the engaging portion.

14. A process cartridge detachably mountable to an electronic image forming apparatus, wherein a driving assembly according to any one of claims 1 to 13 is provided in the process cartridge.