Processing box

Abstract

The processing box is detachably installed in the imaging equipment provided with a separation control mechanism and a force output piece, the force output piece comprises a driving part and a braking part which rotate in the same direction, the braking part can move relative to the driving part, and the processing box comprises a photosensitive drum and a developing roller; the first driving force receiving part is used for receiving driving force for the developing roller; the second driving force receiving piece is used for being combined with the driving part to receive the driving force and driving the photosensitive drum to rotate; in the working process of the processing box, the brake part is pressed by the second driving force receiving piece to be in a retraction state; the contact mechanism is separated; a locking portion and a locked portion, the developing roller and the photosensitive drum being held in one of a mutually approaching state and a mutually separating state through mutual abutting of the locking portion and the locked portion; an elastic force applying member; one of the locking part and the locked part is fixedly arranged relative to the first unit shell, and the other one of the locking part and the locked part is movably arranged relative to the first unit shell under the action of the elastic force applying piece.

Description

[0001] This utility model claims the priority of Chinese prior applications with the application date of March 13, 2023, the invention title of "Processing Cartridge", and the application number of 202320488742.8; the application date of April 27, 2023, the invention title of "Processing Cartridge", and the application number of 202321018884.4; the application date of June 30, 2023, the invention title of "Processing Cartridge", and the application number of 202321711353.3; and the application date of July 4, 2023, the invention title of "Processing Cartridge", and the application number of 202321749685.0. All the contents of the prior applications are cross-referenced in this application. Technical Field

[0002] This utility model relates to the field of electrophotographic imaging, and particularly to a processing cartridge that can be detachably installed in an electrophotographic imaging device. Background Art

[0003] Chinese Patent Application CN113574469A (cited reference) discloses a force output member (main assembly side driving force transmission unit) 203 provided in an imaging device M. As shown in this patent application Figure 43 As shown, the force output member 203 has a rotation axis M1 and includes a driving force output member (drum drive coupling) 180 that outputs a driving force and a braking force output member (including a first braking engagement member 204 and a second braking engagement member 208) that outputs a braking force. When the force output member 203 outputs a driving force to a driving force receiving member X4 described below, the braking force output member is driven by the driving force output member 180 and rotates together with the driving force output member.

[0004] As shown in this patent application Figure 45 As shown, along the rotation axis M1, driving force output surfaces (drive transmission surfaces) 180d and flange portions 180a are respectively provided at both ends of the driving force output member 180; as Figure 43As shown, the first braking engagement member 204 has a flange portion 204a and a coupling engagement portion 204b protruding from the flange portion 204a. The coupling engagement portion 204b is arranged to protrude like a claw toward the rotation axis M1 of the force output member. The second braking engagement member 208 also has a flange portion 208a and a coupling engagement portion 208b protruding from the flange portion 208a. The coupling engagement portion 208b is also arranged to protrude like a claw toward the rotation axis M1 of the force output member. In the radial direction perpendicular to the rotation axis M1, the first braking engagement member 204 is located outside the second braking engagement member 208, and the coupling engagement portion 204b is located outside the coupling engagement portion 208b. The first braking engagement member 204 and the second braking engagement member 208 can rotate simultaneously about the rotation axis M1.

[0005] Figure 1A is a perspective view of an existing processing cartridge; Figure 1B is a perspective view of a rotating member equipped with an existing driving force receiving member.

[0006] This cited document also discloses as Figure 1B shown a rotating member 21 equipped with an existing driving force receiving member X4. The rotating member 21 and the driving force receiving member X4 are applicable to an existing processing cartridge C as Figure 1A shown. The processing cartridge C includes a first unit 100 and a second unit 200 that are combined with each other and a driving force receiving member X4 for receiving driving force from an imaging device. The first unit 100 includes a first unit housing 1 and a first rotating member 11 rotatably mounted in the first unit housing 1. The second unit 200 includes a second unit housing 2 and a second rotating member 21 rotatably mounted in the second unit housing 2. The driving force receiving member X4 is provided at a longitudinal end of the processing cartridge C and drives at least one of the first rotating member 11 and the second rotating member 21 to rotate.

[0007] Taking the rotation of the second rotating member 21 about the rotation axis L21 as an example, as Figure 1B shown, the driving force receiving member X4 is combined with the second rotating member 21 and includes a chassis X42, a base X43, and a coupling portion X44. Along the rotation axis L21, the chassis X42, the base X43, and the coupling portion X44 are arranged in sequence. The coupling portion X44 includes a central column X45 and a driving force receiving portion X46 extending radially outward along the central column X45. The driving force receiving portion X46 is provided with a guiding surface X463 spirally extending in the circumferential direction about the rotation axis L21 and a driving surface X464 and a braking surface X465 adjacent to the guiding surface. Along the rotation axis L21, the guiding surface X463 is located above the braking surface X465.

[0008] During the installation of the processing cartridge C, the guiding surface X463 abuts at least against the coupling portion 208b in the second braking engagement member 208 to guide the driving force receiving portion X46 into the space between the driving force output surface 180d and the coupling portion 208b / 204b; when the processing cartridge C is in operation, the driving force output surface 180d outputs a driving force to the driving surface X464 to drive the rotating member 21 to rotate, and the braking force output member is configured to apply a braking force to the braking surface X465 downstream of the rotational direction of the driving force receiving portion X46.

[0009] In this cited document, to prevent the first rotating member 11 and the second rotating member 21 from being deformed or contaminated due to long-term mutual abutment, a biasing member 152 has been provided in the processing cartridge (as shown in FIG. 10 of the cited document). When the imaging device is not in operation / imaging, the biasing member 152 receives a separating force from the imaging device and then forces the first rotating member 11 and the second rotating member 21 to separate from each other. The separation process is that, under the action of the separating force received by the biasing member 152, the first unit 100 rotates relative to the second unit 200 / housing 2 about an axis parallel to the rotation axis L21.

[0010] However, in the existing method of achieving the mutual separation of the first rotating member 11 and the second rotating member 21 by relative rotation, it is necessary to consider how to ensure that the first rotating member and the second rotating member can quickly approach and move away from each other. SUMMARY OF THE INVENTION

[0011] The present invention provides a processing cartridge to further develop the above technology and achieve the purpose of enabling the first rotating member and the second rotating member to quickly approach and move away from each other. The specific solution is as follows:

[0012] A processing cartridge is detachably installed in an imaging device provided with a separation control mechanism and a force output member. The force output member includes a driving portion and a braking portion that rotate in the same direction, and the braking portion is movable relative to the driving portion. The processing cartridge includes: a first unit including a first unit housing for storing a developer; a second unit including a second unit housing; a photosensitive drum rotatably provided in the second unit housing; a developing roller rotatably provided in the first unit housing for supplying the developer to the photosensitive drum; a first driving force receiving member provided in the first unit for receiving a driving force for the developing roller; a second driving force receiving member for engaging with the driving portion to receive a driving force and driving the photosensitive drum to rotate; during the operation of the processing cartridge, the braking portion is pressed by the second driving force receiving member and is in a retracted state; the processing cartridge further includes: a separation contact mechanism for receiving a separation force and a restoring force applied by the separation control mechanism, under the action of the separation force, the developing roller and the photosensitive drum are separated from each other, and under the action of the restoring force, the developing roller and the photosensitive drum approach each other; a locking portion and a locked portion, by the locking portion and the locked portion abutting against each other, the developing roller and the photosensitive drum are maintained in one of the mutually approaching state and the mutually separated state; an elastic force applying member; one of the locking portion and the locked portion is fixedly provided relative to the first unit housing, and under the action of the elastic force applying member, the other of the locking portion and the locked portion is movably provided relative to the first unit housing.

[0013] The second driving force receiving member further includes a guiding surface and a driving force receiving portion for receiving a driving force. The guiding surface guides the braking portion so that the braking portion moves away from the driving force receiving portion.

[0014] The side of the processing cartridge where the photosensitive drum and the developing roller are installed points to the side where the photosensitive drum and the developing roller are not installed as the upper side, and the side opposite to the upper side is the lower side. The direction from the first unit to the second unit is the front, and the side opposite to the front is the rear; when the separation contact mechanism receives the separation force or the restoring force applied by the separation control mechanism, the first unit housing translates relative to the second unit housing in a reference plane including the front-rear direction and the up-down direction; along the front-rear direction, the directions of the separation force and the restoring force are opposite.

[0015] The processing cartridge further includes: when the separation contact mechanism receives the separation force, the developing roller and the photosensitive drum are converted from the mutually approaching state to the mutually separated state with a separation gap formed therebetween, and the locking portion and the locked portion are converted from unlocking to locking each other; when the separation contact mechanism receives the restoring force, the developing roller and the photosensitive drum return from the mutually separated state to the mutually approaching state again, and the locking portion and the locked portion are converted from unlocking to locking each other.

[0016] The elastic force applying member is used to force the locking portion to move in a direction away from the first unit housing or in a direction close to the first unit housing.

[0017] The processing cartridge further includes an end cap connecting the first unit housing and the second unit housing. The end cap includes an end cap body, an exposure hole provided on the end cap body, and a limiting space. The second driving force receiving member is exposed through the exposure hole, and the elastic force applying member and the locked portion are installed in the limiting space.

[0018] The elastic force applying member is used to force the locked portion to move in a straight line.

[0019] The locking portion is provided with a first protrusion. When the processing cartridge is imaging, a part of the locked portion abuts against the first protrusion and is in a locked state, and the developing roller and the photosensitive drum approach each other; when the separation control mechanism applies a separation force to the separation contact mechanism, the first unit housing rotates relative to the second unit housing. During the process that a part of the locked portion crosses over the first protrusion, the elastic force applying member undergoes elastic deformation. After a part of the locked portion crosses over the first protrusion, under the elastic force released by the elastic force applying member, a part of the locked portion abuts against the first protrusion again, and the developing roller and the photosensitive drum are separated from each other and maintained in the separated state.

[0020] When the second driving force receiving member is installed along with the processing cartridge, the end face of the second driving force receiving member abuts against the braking portion and forces the braking portion to retract.

[0021] The force output member further includes a connecting member connected to the driving portion and a positioning post protruding from the connecting member. The driving force receiving member further includes a central post allowing the positioning post to enter and a pressing portion located radially outside the central post. The pressing portion is used to hold the braking portion in the retracted state. Description of the Drawings

[0022] Figure 1A is a perspective view of an existing processing cartridge.

[0023] Figure 1B is a perspective view of a rotating member equipped with an existing driving force receiving member.

[0024] Figure 2A is a perspective view of an existing force output member with a part cut away.

[0025] Figure 2B is a partial perspective view of an existing force output member.

[0026] Figure 2C is a partial perspective view of an existing force output member with the braking force output member hidden.

[0027] Figure 2D is a top view when observing along the rotation axis of an existing force output member.

[0028] Figure 2E is an exploded view of an existing force output member.

[0029] Figure 2FIt is a cross-sectional view taken along the rotation axis of the existing force output member.

[0030] Figure 2G It is a complete three-dimensional view of the existing force output member.

[0031] Figure 3A and Figure 3B It is a three-dimensional view of the processing cartridge related to the present invention.

[0032] Figure 4 It is a three-dimensional view of the photosensitive drum of the driving force receiving member related to the present invention.

[0033] Figure 5A It is a three-dimensional view of the driving force receiving member according to the first embodiment of the present invention.

[0034] Figure 5B It is a side view of the driving force receiving member according to the first embodiment of the present invention when observed along its rotation axis.

[0035] Figure 6A and Figure 6B It is a schematic diagram of the state before and after the driving force receiving member according to the second embodiment of the present invention is combined with the driving force output member and the braking force output member in the device.

[0036] Figure 7 It is a three-dimensional view of the driving force receiving member according to the third embodiment of the present invention.

[0037] Figure 8A It is a three-dimensional view of the driving force receiving member according to the third embodiment of the present invention when it starts to be combined with the force output member.

[0038] Figure 8B It is a three-dimensional view of the driving force receiving member according to the third embodiment of the present invention after being combined with the force output member.

[0039] Figure 8C It is a side view of the driving force receiving member according to the third embodiment of the present invention after being combined with the force output member, observed in a direction perpendicular to the rotation axis of the driving force receiving member.

[0040] Figure 9 It is a three-dimensional view of the driving force receiving member according to the fourth embodiment of the present invention.

[0041] Figure 10A It is a three-dimensional view of the driving force receiving member according to the fourth embodiment of the present invention when it starts to be combined with the force output member.

[0042] Figure 10B It is a three-dimensional view of the driving force receiving member according to the fourth embodiment of the present invention after being combined with the force output member.

[0043] Figure 10CIt is a side view observed along a direction perpendicular to the rotation axis of the driving force receiving member after the combination of the driving force receiving member and the force output member involved in the fourth embodiment of the present utility model.

[0044] Figure 11 It is a perspective view of the driving force receiving member involved in the fifth embodiment of the present utility model.

[0045] Figure 12A It is a perspective view observed along a direction intersecting with the rotation axis of the driving force receiving member before the combination of the driving force receiving member and the force output member in the first state involved in the fifth embodiment of the present utility model.

[0046] Figure 12B It is a perspective view observed along another direction intersecting with the rotation axis of the driving force receiving member after the combination of the driving force receiving member and the force output member in the first state involved in the fifth embodiment of the present utility model.

[0047] Figure 13A It is a perspective view of the driving force receiving member and the force output member in the first state after combination involved in the fifth embodiment of the present utility model.

[0048] Figure 13B It is a perspective view observed along a direction perpendicular to the rotation axis of the driving force receiving member after the combination of the driving force receiving member and the force output member in the first state involved in the fifth embodiment of the present utility model.

[0049] Figure 14 It is a perspective view observed along a direction perpendicular to the rotation axis of the driving force receiving member when the driving force receiving member starts to combine with the force output member in the second state involved in the fifth embodiment of the present utility model.

[0050] Figure 15 It is a perspective view of the driving force receiving member involved in the sixth embodiment of the present utility model.

[0051] Figure 16A It is a perspective view of the driving force receiving member and the driving force output member after combination involved in the sixth embodiment of the present utility model.

[0052] Figure 16B It is a side view observed along a direction perpendicular to the rotation axis of the driving force receiving member after the combination of the driving force receiving member and the driving force output member involved in the sixth embodiment of the present utility model.

[0053] Figure 17 It is a perspective view of the driving force receiving member involved in the seventh embodiment of the present utility model.

[0054] Figure 18 It is a schematic diagram of the state after the separation of the joint part of the driving force receiving member and the base involved in the seventh embodiment of the present utility model.

[0055] Figure 19 It is a side view when observed in a direction perpendicular to the rotation axis of the driving force receiving member according to the seventh embodiment of the present invention.

[0056] Figure 20 It is a side view when observed in a direction perpendicular to the rotation axis of the driving force receiving member after the driving force receiving member and the force output member according to the seventh embodiment of the present invention are combined.

[0057] Figure 21 It is a perspective view of the driving force receiving member according to the eighth embodiment of the present invention.

[0058] Figure 22 It is a perspective view of the driving force receiving member according to the ninth embodiment of the present invention.

[0059] Figure 23 It is a perspective view after the driving force receiving member and the force output member according to the ninth embodiment of the present invention are combined.

[0060] Figure 24A It is an exploded view of the driving force receiving member according to the tenth embodiment of the present invention.

[0061] Figure 24B It is an exploded view after the driving force receiving member is separated from the second unit housing in the modified embodiment of the tenth embodiment of the present invention.

[0062] Figure 24C It is along Figure 24B The cross-sectional view after cutting along the DD direction in

[0063] Figure 25A It is a perspective view of the driving force receiving member according to the tenth embodiment of the present invention.

[0064] Figure 25B It is a side view when observed along the rotation axis of the driving force receiving member according to the tenth embodiment of the present invention.

[0065] Figure 26A And Figure 26B It is a state diagram after the driving force receiving member and the force output member according to the tenth embodiment of the present invention are combined.

[0066] Figure 27 It is a cross-sectional view of the processing cartridge cut along a plane perpendicular to the rotation axis of the photosensitive drum.

[0067] Figure 28 It is a state diagram after the driving force receiving member and the driving end cover according to the eleventh embodiment of the present invention are separated.

[0068] Figure 29 It is a cross-sectional view cut along the EE direction through the rotation axis of the driving force receiving member according to the eleventh embodiment of the present invention.

[0069] Figure 30 It is an exploded view after the separation contact mechanism and the drive end cap in the processing cartridge according to the twelfth embodiment of the present invention are both separated from the processing cartridge housing.

[0070] Figure 31A It is a side view of the separation contact mechanism in the processing cartridge according to the twelfth embodiment of the present invention when in the retracted state, viewed from left to right in the left-right direction.

[0071] Figure 31B It is a side view of the separation contact mechanism in the processing cartridge according to the twelfth embodiment of the present invention when in the extended state, viewed from left to right in the left-right direction.

[0072] Figure 31C It is a side view of the separation contact mechanism in the processing cartridge according to the twelfth embodiment of the present invention when receiving the acting force applied by the separation control mechanism in the imaging device, viewed from left to right in the left-right direction.

[0073] Figure 31D It is a side view of the processing cartridge according to the twelfth embodiment of the present invention, viewed from top to bottom in the up-down direction.

[0074] Figure 31E It is a simplified schematic diagram after the developing roller and the photosensitive drum are separated from each other in one of the embodiments of the present invention.

[0075] Figure 32 It is an exploded view after the separation contact mechanism and the drive end cap in the processing cartridge according to the thirteenth embodiment of the present invention are both separated from the processing cartridge housing.

[0076] Figure 33A It is a side view of the separation contact mechanism in the processing cartridge according to the thirteenth embodiment of the present invention when in the retracted state, viewed from left to right in the left-right direction.

[0077] Figure 33B It is a side view of the separation contact mechanism in the processing cartridge according to the thirteenth embodiment of the present invention when in the extended state, viewed from left to right in the left-right direction.

[0078] Figure 34 It is an exploded view after the separation contact mechanism and the drive end cap at the drive end of the processing cartridge according to the fourteenth embodiment of the present invention are both separated from the processing cartridge housing.

[0079] Figure 35 It is an exploded view after the separation contact mechanism and the drive end cap at the drive end of the processing cartridge according to the fifteenth embodiment of the present invention are both separated from the processing cartridge housing.

[0080] Figure 36It is an exploded view after the separation of the first driving force receiving member, the protective cover and the driving end cover of the processing cartridge according to the sixteenth embodiment of the present utility model.

[0081] Figure 37A It is a side view of the processing cartridge according to the sixteenth embodiment of the present utility model when the developing roller and the photosensitive drum are approaching each other, observed from left to right in the left-right direction.

[0082] Figure 37B It is a side view of the processing cartridge according to the sixteenth embodiment of the present utility model when the developing roller and the photosensitive drum are moving away from each other, observed from left to right in the left-right direction.

[0083] Figure 38 It is an exploded view after the separation of the first driving force receiving member, the protective cover and the driving end cover of the processing cartridge according to the seventeenth embodiment of the present utility model.

[0084] Figure 39A It is a side view of the processing cartridge according to the seventeenth embodiment of the present utility model when the developing roller and the photosensitive drum are approaching each other, observed from left to right in the left-right direction.

[0085] Figure 39B It is a side view of the processing cartridge according to the seventeenth embodiment of the present utility model when the developing roller and the photosensitive drum are moving away from each other, observed from left to right in the left-right direction.

[0086] Figure 40 It is an exploded view of some components of the processing cartridge according to the eighteenth embodiment of the present utility model.

[0087] Figure 41 It is a perspective view of the protective cover of the processing cartridge according to the eighteenth embodiment of the present utility model.

[0088] Figure 42 It is an exploded view of some components of the processing cartridge according to the nineteenth embodiment of the present utility model.

[0089] Figure 43 It is an exploded view of some components of the processing cartridge according to the twentieth embodiment of the present utility model.

[0090] Figure 44 It is an exploded view of some components of the processing cartridge according to the twenty-first embodiment of the present utility model.

[0091] Figure 45 It is the first overall structural diagram of the processing cartridge in the twenty-second embodiment of the present utility model;

[0092] Figure 46 It is the overall structural diagram of the photosensitive unit in the twenty-second embodiment of the present utility model;

[0093] Figure 47It is a schematic diagram of the overall structure of the developing unit in the twenty-second embodiment of the present utility model;

[0094] Figure 48 It is a schematic exploded view of the driving end of the processing cartridge in the twenty-second embodiment of the present utility model;

[0095] Figure 49 It is a schematic diagram of the overall structure of the separation mechanism in the twenty-second embodiment of the present utility model;

[0096] Figure 50 It is a schematic exploded view of the separation mechanism in the twenty-second embodiment of the present utility model;

[0097] Figure 51 It is a schematic diagram of the structure of the first end cap in the twenty-second embodiment of the present utility model;

[0098] Figure 52 It is a schematic diagram of the side structure of the driving end of the processing cartridge in the non-installed state in the twenty-second embodiment of the present utility model;

[0099] Figure 53A It is a schematic diagram of the side structure of the driving end of the processing cartridge in the installed state in the twenty-second embodiment of the present utility model;

[0100] Figure 53B It is a schematic diagram of the side structure of the driving end of the processing cartridge in the installed state after removing the first end cap in the twenty-second embodiment of the present utility model;

[0101] Figure 54 It is a schematic diagram of the side structure of the driving end when the moving member moves to the initial position in the twenty-second embodiment of the present utility model;

[0102] Figure 55 It is a second schematic diagram of the overall structure of the processing cartridge in the twenty-second embodiment of the present utility model;

[0103] Figure 56 It is a schematic diagram of the overall structure of another deformed processing cartridge in the twenty-second embodiment of the present utility model.

[0104] Figure 57 It is a perspective view of the processing cartridge in the twenty-third embodiment of the present utility model.

[0105] Figure 58 It is a perspective view of the developing cartridge in the twenty-third embodiment of the present utility model.

[0106] Figure 59 It is an exploded view of the processing cartridge in the twenty-third embodiment of the present utility model.

[0107] Figure 60 is Figure 57 A cross-sectional view at A'-A', with the second frame in the first position.

[0108] Figure 61 It is a schematic cross-sectional view of the processing cartridge in the twenty-third embodiment of the present utility model when the second frame is in the second position.

[0109] Figure 62 It is a perspective view of the processing cartridge in the twenty-fourth embodiment of the present utility model.

[0110] Figure 63 It is another perspective view of the processing cartridge in the twenty-fourth embodiment of the present utility model.

[0111] Figure 64 It is an exploded schematic view of the processing cartridge in the twenty-fourth embodiment of the present utility model.

[0112] Figure 65 It is an exploded schematic view of the power receiving part and the power receiving gear in the twenty-fourth embodiment of the present utility model.

[0113] Figure 66 It is a comparison schematic view of the twenty-fourth embodiment of the present utility model before and after the thrust receiving part receives thrust.

[0114] Figure 67 is Figure 66 the bottom view of. Detailed implementation manners

[0115] Next, the embodiments of the present utility model will be described in detail with reference to the accompanying drawings. For ease of understanding, except for the driving force receiving member, the numbers and structures of the processing cartridge and its various components mentioned in the patent application in the background art will be directly cited hereinafter.

[0116] It is understandable that the first rotating member 11 and / or the second rotating member 21 described in the patent application of the background art can be directly driven by the driving force receiving member X4 or indirectly driven; the processing cartridge C can include both the first unit 100 and the second unit 200, or can include only any one of the first unit 100 and the second unit 200. The developer / toner is accommodated in the first unit housing 1. The side provided with the driving force receiving member X4 is called the driving end C1, and the other end opposite thereto is called the non-driving end C2. The driving end cover / first end cover 300 is installed at the driving end C1, and the driving force receiving member X4 is exposed from the driving end C1. The non-driving end cover / second end cover 400 is installed at the non-driving end C2. A conductive bracket for receiving power from the power output member provided in the imaging device and supplying it to the first rotating member 11 and / or the second rotating member 21 is provided at the non-driving end C2. The conductive bracket can be exposed outward through the second end cover 400 or directly exposed outward; the first unit 100 and the second unit 200 can be combined with each other through the first end cover 300 and the second end cover 400, or can be combined by means such as pins and snaps. The first end cover 300 and the second end cover 400 can be either a part of the first unit 100 or the second unit 200, or can be components independent of the first unit 100 or the second unit 200, as long as they can combine the first unit 100 and the second unit 200. For example, the first end cover 300 is integrally formed with the first unit housing 1 (abbreviated as "housing 1") or the second unit housing 2 (abbreviated as "housing 2"), or the first end cover 300 is detachably combined with the first unit housing 1 or the second unit housing 2. The second end cover 400 can also be integrally formed with the first unit housing 1 or the second unit housing 2, or the second end cover 400 can also be detachably combined with the first unit housing 1 or the second unit housing 2. The first unit housing 1 and the second unit housing 2 can be collectively referred to as the processing cartridge housing; the first rotating member 11 can be a developing roller rotatably provided in the first unit housing 1, and the second rotating member 21 can be a photosensitive drum rotatably provided in the second unit housing 2. However, the first rotating member 11 and the second rotating member 21 can also be other rotating components in the processing cartridge. For example, a charging member 24 for charging the photosensitive drum, a supply member 102 for supplying the developer to the developing roller, a stirring member for stirring the developer, etc., as long as the driving force receiving member X4 can receive the driving force from the force output member provided in the imaging device and drive the rotating member to rotate. That is to say, the photosensitive drum 21, the charging member 24, the developing roller 11, the supply member 102, the stirring member, etc. rotatably installed in the processing cartridge C can all be called rotating members. The driving force receiving member X4 receives the driving force from the device to drive the rotating member to rotate. Therefore, the combination of the rotating member and the driving force receiving member X4 can be collectively referred to as the rotating assembly.

[0117] When the processing cartridge C is in operation / imaging, the photosensitive drum 21 contacts the developing roller 11, and the developing roller 11 supplies the developer to the photosensitive drum 21. Hereinafter, the driving force receiving member is denoted by the number 4. The second driving force receiving member 4 is fixedly installed at a longitudinal end of the rotating member. Therefore, the second driving force receiving member 4 and the rotating member have the same rotation axis.

[0118] There is an existing imaging device provided with a drawer-type accommodating portion, and the processing cartridge is installed in the drawer-type accommodating portion. When it is necessary to install or remove the processing cartridge, the door is opened. The drawer-type accommodating portion first rises a certain distance as the door is opened, and then is pulled out. After the processing cartridge is installed or removed, the drawer-type accommodating portion is pushed towards the inside of the imaging device to a predetermined position. Finally, during the process of closing the door, the drawer-type accommodating portion descends a certain distance to approach the transfer device provided in the imaging device. For such an imaging device, during the process of pushing the drawer-type accommodating portion towards the inside of the imaging device, the inner wall of the imaging device can apply an external force to the processing cartridge. Or, during the process of closing the door, when the drawer-type accommodating portion descends, the transfer device can apply an external force to the processing cartridge. Or, during the process of closing the door, the drawer-type accommodating portion does not descend, but the transfer device opposite to the drawer-type accommodating portion rises to approach the drawer-type accommodating portion. Similarly, the transfer device can also apply an external force to the processing cartridge.

[0119] Figure 3A and Figure 3B is a perspective view of the processing cartridge related to the present utility model.

[0120] For the convenience of the following description, it is defined herein that the side of the processing cartridge C where the photosensitive drum 21 and the developing roller 11 are installed points to the side where the photosensitive drum 21 and the developing roller 11 are not installed as the upper side, the side opposite to the upper side is the lower side, the direction from the first unit 100 to the second unit 200 is the front, the side opposite to the front is the rear, the side receiving the driving force is the left side, the side opposite to the left side is the right side. The processing cartridge C is installed in the device from top to bottom in the up-down direction. The left side is the driving end C1, and the right side is the non-driving end C2. The first end cap 300 is installed at the driving end C1, and the second end cap 400 is installed at the non-driving end C2. The first driving force receiving member 3 (also referred to as the "developing driving force receiving member 3") for receiving the driving force for the developing roller 11 and the second driving force receiving member 4 for receiving the driving force for the photosensitive drum 21 both expose from the first end cap 300. The developing roller 11 and the photosensitive drum 21 both extend in the left-right direction. The rotation axis L11 of the developing roller 11 and the rotation axis L21 of the photosensitive drum 21 described below are both parallel to the left-right direction.

[0121] As Figure 3AAs shown, a compression spring as an imaging retaining member C3 is installed between the first unit 100 and the second unit 200. Under the action of the compression spring C3, the first unit 100 and the second unit 200 are maintained in a state where the developing roller 11 and the photosensitive drum 21 are in contact with each other. At this time, the processing box C can perform imaging operations.

[0122] Hereinafter, description will be made by taking an example in which the second driving force receiving member 4 is directly mounted on the distal end of the photosensitive drum 21 .

[0123]

Force output components in imaging equipment

[0124] In order to make the following description clearer, it is necessary to further describe the force output member 203 here.

[0125] Figure 2A It is a three-dimensional diagram of an existing force output member after a part is cut off; Figure 2B It is a partial stereogram of an existing force output member; Figure 2C It is a partial stereogram after the braking force output part in the existing force output part is hidden; Figure 2D is a top view when observing along the rotation axis of the existing force output member;

[0126] Figure 2E is an exploded view of the existing force output member; Figure 2F is a cross-sectional view cut along the rotation axis of the existing force output member; Figure 2G It is a complete three-dimensional diagram of the existing force output component.

[0127] like Figures 2E - 2G The force output member 203 also includes a driving gear 201, a support shaft 202, a braking component 206 and a braking transmission component 207, wherein the support shaft 202 can rotatably support the driving gear 201 and also supports the braking component 206, wherein the braking component 206 is used to generate a braking force, and the braking transmission component 207 is connected to the braking component 206 and transmits the braking force.

[0128] Specifically, the protrusion 207e provided on the brake transmission member 207 and the protrusion 204e of the first brake engagement member 204 can be disengaged. When the first brake engagement member 204 and the second brake engagement member 208 are together relative to the brake transmission member 207 along the Figure 2F When the protrusion 204e and the protrusion 207e are disengaged in the direction shown by M1A, the brake transfer member 207 no longer transmits braking force to the first brake engaging member 204 and the second brake engaging member 208, and the brake transfer member 207 no longer restricts the rotation of the first brake engaging member 204 and the second brake engaging member 208. Conversely, the first brake engaging member 204 and the second brake engaging member 208 no longer restrict the rotation of the brake transfer member 207.

[0129] As shown in this patent application Figures 2A - 2G As shown, the driving force output member 180 includes a cylindrical portion 180c, and a flange portion 180a and a driving portion 180h respectively located at both ends of the cylindrical portion 180c. The braking force output member includes a first braking engagement member 204 and a second braking engagement member 208 which are combined with each other. As Figure 2E and Figure 2G shown, the driving force output member 180 and the braking force output member can rotate in the same direction along the rotation direction r around the rotation axis M1, and the braking force output member can rotate together with the driving force output member 180. Before the processing cartridge C is installed in the device, along the rotation axis M1, the driving force output member 180 and the braking force output member partially overlap.

[0130] The driving force output member 180 includes a first driving force output portion 180h and a second driving force output portion 180m which are arranged oppositely in the radial direction of the force output member. The braking force output member includes a first braking force output portion 203a and a second braking force output portion 203b which are arranged oppositely in the radial direction of the force output member. As Figure 2D shown, along the rotation direction, the first driving force output portion 180h, the first braking force output portion 203a, the second driving force output portion 180m, and the second braking force output portion 203b are arranged in sequence.

[0131] As Figure 2D shown, a dividing line x is made passing through the rotation axis M1, and between the first braking force output portion 203a and the second driving force output portion 180m, and between the first driving force output portion 180h and the second braking force output portion 203b. In Figure 2D , the dividing line x divides the force output member 203 into a first force output portion 2031 and a second force output portion 2032. Among them, the first force output portion 2031 includes the first driving force output portion 180h and the first braking force output portion 203a, and the second force output portion 2032 includes the second driving force output portion 180m and the second braking force output portion 203b. The structures of the first driving force output portion 180h and the second driving force output portion 180m are the same, the structures of the first braking force output portion 203a and the second braking force output portion 203b are the same, and the combination processes of the second driving force receiving member 4 with the first force output portion 2031 and the second force output portion 2032 are the same.

[0132] For ease of description, the following describes the combination process of the first force output unit 2031 and the second driving force receiving member 4 as an example; further, the first driving force output unit 180h in the first force output unit 2031 is simply referred to as the driving force output unit / driving unit 180h, and the first braking force output unit 203a in the first force output unit 2031 is simply referred to as the braking unit 203a. Along the rotation direction r, the braking unit 203a is located downstream of the driving unit 180h. The driving unit 180h and the braking unit 203a can rotate in the same direction around the rotation axis M1, and the braking unit 203a can rotate together with the driving unit 180h. Before the processing cartridge is installed in the device, along the rotation axis M1, the driving unit 180h and the braking unit 203a partially overlap.

[0133] The braking unit 203a includes a first braking engagement member 204 and a second braking engagement member 208. Along the radial direction of the force output member 203, the first braking engagement member 204 is located outside the second braking engagement member 208. The first braking engagement member 204 and the second braking engagement member 208 are combined through a rotation stop recess 204c and a rotation stop protrusion 208c. Thus, the first braking engagement member 204 and the second braking engagement member 208 can jointly rotate around the axis M1.

[0134] Further, the force output member 203 also includes a first spring (drum drive coupling spring) 210 and a second spring (braking engagement spring) 211. The first spring 210 abuts against the braking transmission member 207. The flange portion 207a of the braking transmission member 207 abuts against the second braking engagement member 208. At the same time, the protrusion 207f of the braking transmission member 207 also abuts against the contact surface 180f of the driving force output member (such as Figure 2F ); The second spring 211 abuts against the flange portion 204a of the first braking engagement member 204. Along the axis M1, the first braking engagement member 204, the second braking engagement member 208, and the driving unit 180h are arranged to be able to retract and extend along the axis M1, that is, along Figure 2FMove in the directions shown by M1A and M1B. Among them, the first braking structural member 204 and the second braking engagement member 208 can be indented and extended along the axis M1 simultaneously, and in some imaging devices, they can also be indented and extended along the axis M1 separately; when the first braking engagement member 204 moves along the axis M1 in the direction shown by M1A (the direction close to the flange portion 180a), after the rotation stop recess 204c and the rotation stop protrusion 208c are disengaged, the first braking engagement member 204 can rotate freely around the axis M1; when the second braking engagement member 208 moves along the axis M1 in the direction shown by M1A, through the rotation stop recess 204c and the rotation stop protrusion 208c, the first braking engagement member 204 will also move along the axis M1 in the direction shown by M1A. Finally, both the first braking engagement member 204 and the second braking engagement member 208 can rotate freely around the axis M1.

[0135] Furthermore, as Figure 2D shown, the second braking engagement member 208 also has an inward protrusion 208e that protrudes radially inward (towards the rotation axis M1) from the coupling engagement portion 208b. Along the direction M1B opposite to the direction shown by M1A, the inward protrusion 208e is located at the free end of the second braking engagement member 208. As Figures 2A - 2D shown, the driving force output surface 180d is located on the driving portion 180h. Along the rotation direction of the force output member 203, the driving portion 180h is opposite to the first braking engagement member 204. That is to say, taking the point passed by the rotation axis M1 as the center of a circle, a circle is made in the plane perpendicular to the rotation axis M1, and this circle will pass through at least a part of the driving portion 180h and at least a part of the first braking engagement member 204 simultaneously.

[0136] Continue to refer to Figures 2A - 2D , furthermore, along the rotation direction r of the force output member 203, the first braking engagement member 204 has an outer output surface 204g located downstream of the first braking engagement member main body 204z, the second braking engagement member 208 has an inner output surface 208f located downstream of the second braking engagement member main body 208z, the inward protrusion 208e protrudes radially inward / towards the rotation axis M1 from the second braking engagement member main body 208z, and along the rotation direction r, the inward protrusion 208e has a plane 208g located downstream, and the plane 208g is adjacent to the inner output surface 208f; furthermore, as Figure 2B shown, along the rotation axis M1, the driving portion 180h has a driving end surface 180y located at the end, the first braking engagement member 204 has a first braking end surface 204y located at the end, and the second braking engagement member 208 has a second braking end surface 208y located at the end. The end refers to the end of the driving portion 180h, the first braking engagement member 204, and the second braking engagement member 208 that is farthest from the flange portion 180a.

[0137] When the driving part 180h and the braking part 203a approach each other, the driving part 180h and the braking part 203a do not closely adhere to each other. As Figure 2D shown, along the rotation direction r, a gap is formed between the first braking end face 204y and the driving part 180h, and the minimum value of this gap is s, that is, the closest distance between the first braking end face 204y and the driving part 180h is s.

[0138] As Figure 2C shown, the driving parts 180h are arranged in two radially opposite positions along the driving force output member 180. The driving force output member 180 further includes a connecting member 180k that connects the two driving parts. The connecting member 180k includes an intermediate member 183 and a first connecting member 181 and a second connecting member 182 respectively located on both radial sides of the intermediate member 183. The following positioning post 180i projects from the intermediate member 183 along the rotation axis M1. The first connecting member 181 and the second connecting member 182 have the same structure and are respectively connected to one driving part.

[0139] Furthermore, a lower protruding part 180g is provided on one side surface (driving force output surface) 180d of the driving part 180h facing the first braking engagement member 204. Along the rotation direction r, the driving part 180h is further provided with an inclined surface 180j adjacent to the driving force output surface 180d. An upper protruding part 204f is provided on one side surface of the first braking engagement member 204 facing the driving part 180h. Before the processing cartridge 100 is installed, the driving part 180h and the first braking engagement member 204 approach each other along the rotation direction r. Along the rotation axis M1, the upper protruding part 204f and the lower protruding part 180g are opposite / overlapped.

[0140] Overall, the lower protruding part 180g is integrally formed with the first connecting member 181. The driving force output surface 180d projects from the lower protruding part 180g along the rotation axis M1. Along the rotation direction r, the lower protruding part 180g can also be regarded as projecting from the first connecting member 181 / the driving force output surface 180d. The end of the lower protruding part 180g is formed into a front surface 180g1 that can follow the rotation of the driving part 180h. Further, along the rotation direction r, the first connecting member 181 further has a sub-front surface 180g2 located downstream in the rotation direction. The front surface 180g1 is connected to the sub-front surface 180g2, and both the front surface 180g1 and the sub-front surface 180g2 are located at the downstream end of the first connecting member 181. Therefore, the front surface 180g1 and the sub-front surface 180g2 can be collectively referred to as the downstream end face of the first connecting member 181.

[0141] In the rotational direction r, the force output member 203 has a first space K1, a second space K2, and a third space K3. Among them, the first space K1 refers to the space between the front surface 180g1 and the braking portion 203a. The second space K2 refers to the space between the braking portion 203a and the driving portion 180h located downstream of the braking portion. Specifically, as Figure 2D shown, the second space K2 refers to the space between the first braking force output portion 203a and the second driving force output portion 180m, or the space between the second braking force output portion 203b and the first driving force output portion 180h. The third space K3 refers to the space between the driving portion 180h / driving force output surface 180d and the first braking engagement member 204; when the driving portion 180h and the braking portion 203a partially overlap, as Figure 2D shown, in the rotational direction r, the second space K2 is larger than the first space K1 / third space K3.

[0142] As Figure 4 shown, the second driving force receiving member 4 of the present utility model has a rotation axis L21 extending in the left-right direction, and includes a connecting portion 41, a chassis 42, a base 43, and a coupling portion 44. Along the rotation axis L21, the connecting portion 41, the chassis 42, the base 43, and the coupling portion 44 are arranged in sequence. The connecting portion 41 is directly or indirectly coupled to the rotating member for transmitting the driving force to the rotating member to drive the rotating member to rotate. The chassis 42 abuts against the rotating member so that the second driving force receiving member 4 is positioned relative to the rotating member. The base 43 extends from the chassis 42, and the base 43 and the connecting portion 41 are respectively located on both sides of the chassis 42. The coupling portion 44 extends from the base 43 in a direction away from the chassis 42; as a simplified structure, the chassis 42 can be omitted, and the base 43 directly extends from the connecting portion 41. More simply, the base 43 can also be omitted, and the coupling portion 44 extends from the connecting portion 41.

[0143] The structure of the coupling portion 44 will be described below, and the other structures of the second driving force receiving member 4 are not limited herein. To more clearly show the structure of the driving force receiving member of the present utility model, only the second driving force receiving member 4 is shown below. However, it should be understood that the second driving force receiving member 4 can be applied to each rotating member in the processing cartridge.

[0144] The coupling portion 44 includes a central column 45 and a driving force receiving portion 46 extending radially outward from the central column 45. The rotation axis L21 passes through the central column 45, and the two driving force receiving portions 46 are arranged radially opposite to each other on the periphery of the central column 45. As Figure 4As shown, each driving force receiving part 46 includes a base 461 connected to the central column 45 and a bump 462 located radially outside the base 461. Along the radial direction of the second driving force receiving member 4, the bump 462 is located radially outside the base 461. A guiding surface 463 extends from the base 461 towards the bump 462. The bump 462 has a first surface / driving surface 464 and a second surface / braking surface 465 adjacent to the guiding surface 463. As the processing cartridge C is installed towards the device, the guiding surface 463 guides the braking part 203a to move relative to the driving part 180h, so that the driving force receiving part 46 reaches between the driving part 180h and the braking part 203a, that is, the driving force receiving part 46 enters the third space K3.

[0145] [Driving Force Receiver]

[0146] [Embodiment 1]

[0147] Figure 5A is a perspective view of the driving force receiver according to Embodiment 1 of the present utility model; Figure 5B is a side view of the driving force receiver according to Embodiment 1 of the present utility model when observed along its rotation axis.

[0148] As Figure 5A shown, in this embodiment, the driving force receiving part 46 is simplified to at least one independent bump 462. The bump 462 has opposite first surface 464 and second surface 465. Along the rotation direction r, the first surface 464 is located upstream of the second surface 465. When the processing cartridge C is installed at a predetermined position of the device, the first surface 464 reaches the downstream space K2 (second space K2) of the braking part 203a. At this time, the first surface 464 faces the braking part 203a.

[0149] When the processing cartridge C starts to work, the braking part 203a rotates together with the driving part 180h. At this time, the braking part 203a abuts against the first surface 464 and drives the second driving force receiving member 4 to rotate in the rotation direction r. The second driving force receiving member 4 does not need to be braked by the braking part when it stops working, which is beneficial to reducing the wear of the second driving force receiving member 4 during work; during the process of the processing cartridge C returning from the working state to the non-working state or during the process of the photosensitive drum 21 returning from the rotating state to the non-rotating state, along the circumferential direction of the photosensitive drum 21, the driving part 180h does not apply a force / braking force to the driving force receiver, which is equivalent to shielding the driving part 180h.

[0150] The structure of the second driving force receiving member 4 in this embodiment is simplified. At the same time, the contact surface between the driving force receiving part 46 and the force output member 203 is increased, improving the combined stability of the driving force receiving part 46 and the force output member 203 and the force receiving stability of the driving force receiving part 46. The driving force receiving part 46 and the force output member 203 are not easily separated.

[0151] On the other hand, since the second space K2 is the largest, the driving force receiving part 46 is more likely to enter the second space K2 than to enter the first space K1 or the third space K3. Therefore, the solution of using the braking part 203a to drive the second driving force receiving part 4 can also improve the combination efficiency of the second driving force receiving part 4 and the force output part 203, and prevent the misalignment of the combination of the second driving force receiving part 4 and the force output part 203.

[0152] [Embodiment 2]

[0153] Figure 6A and Figure 6B are schematic diagrams of the states before and after the combination of the driving force receiving part related to the second embodiment of the present invention and the driving part and the braking part in the device.

[0154] In this embodiment, at least one of the driving part 180h and the braking part 203a in the device is arranged to be telescopic along the rotation axis M1. There is still a driving space 46c between the two driving force receiving parts 46 of the second driving force receiving part 4. When the second driving force receiving part 4 is installed along with the processing cartridge C, the end face 4w of the second driving force receiving part 4 will abut against one of the driving part 180h and the braking part 203a, or the end face 4w will abut against the driving part 180h and the braking part 203a at the same time. Therefore, at least one of the driving part 180h and the braking part 203a is pressed and retracted into the device.

[0155] As Figure 6B shown, when the driving part 180h or the braking part 203a enters the driving space 46c, the driving part 180h or the braking part 203a will drive the second driving force receiving part 4 to rotate around the rotation axis L21 in the direction shown by r as the device starts; when the driving part 180h and the braking part 203a are pressed at the same time, as the device starts, the driving part 180h and the braking part 203a will start to rotate at the same time, but the second driving force receiving part 4 is not driven until one of the driving part 180h and the braking part 203a enters the driving space 46c.

[0156] In this embodiment, the second driving force receiving member 4 can be driven by the driving portion 180h or the braking portion 203a. When the second driving force receiving member 4 is driven by the driving portion 180h, the braking portion 203a is pressed by the end face 4w and retracts, which is equivalent to shielding the braking portion 203a. During the operation of the processing cartridge C and when the processing cartridge C returns from the working state to the non-working state, the braking portion 203a no longer functions, and along the circumferential direction of the photosensitive drum 21, the braking portion 203a no longer transmits a force to the driving force receiving member. When the second driving force receiving member 4 is driven by the braking portion 203a, the driving portion 180h is pressed by the end face 4w and retracts, which is equivalent to shielding the driving portion 180h. During the operation of the processing cartridge C, when the processing cartridge C returns from the working state to the non-working state, or when the photosensitive drum 21 returns from the rotating state to the non-rotating state, along the circumferential direction of the photosensitive drum 21, the driving portion 180h no longer transmits a force to the second driving force receiving member 4, that is, the driving portion 180h no longer functions. Similarly, the structure of the second driving force receiving member 4 and the structure of the device are both simplified.

[0157] As can be seen from the above embodiment, both the driving portion 180h and the braking portion 203a can transmit a driving force to the second driving force receiving member 4. When the driving portion 180h is used to transmit a driving force to the second driving force receiving member 4, during the process of the processing cartridge returning from the working state to the non-working state or when the photosensitive drum 21 returns from the rotating state to the non-rotating state, along the circumferential direction of the photosensitive drum 21, the braking portion 203a does not transmit a force to the driving force receiving member. At this time, the braking portion 203a is shielded. Specifically, the shielding method can be along the rotation direction r, such that the braking portion 203a moves away from the driving force receiving portion 46 in the second driving force receiving member 4. For example, the braking portion 203a is guided by the guiding surface 463 and gradually retracts towards the retracted state. When the driving surface 464 faces the driving force output surface 180d, the braking portion 203a can be in a state of being pressed by the guiding surface 463 or can be in an extended state where it is no longer pressed by the guiding surface 463. Regardless of the state of the braking portion 203a, it will not affect the driving force output surface 180d from outputting a driving force to the driving surface 464. At this time, the braking portion 203a will not apply a braking force to the second driving force receiving member 4. It can also be along the rotation axis L21, and the braking portion 203a is pressed to the retracted state by the end face 4w of the second driving force receiving member 4. Similarly, the shielding method also applies to the driving portion 180h.

[0158] [Embodiment III]

[0159] Figure 7 is a perspective view of the driving force receiving member according to Embodiment III of the present invention; Figure 8A is a perspective view of the driving force receiving member according to Embodiment III of the present invention when it starts to be combined with the force output member;Figure 8B is a perspective view of the combination of the driving force receiving member and the force output member according to Embodiment 3 of the present utility model; Figure 8C is a side view of the combination of the driving force receiving member and the force output member according to Embodiment 3 of the present utility model, observed in a direction perpendicular to the rotation axis of the driving force receiving member.

[0160] In this embodiment, the second driving force receiving member 4 is arranged such that at least a part of the joint portion 44 can move in a direction intersecting the rotation axis L21. As shown in the figure, when observing from the joint portion 44 towards the connecting portion 41 along the rotation axis L21 of the driving force receiving member, the second driving force receiving member 4 can rotate around the rotation axis L21 in the direction shown by r (clockwise direction). Along the rotation direction r, the joint portion 44 is divided into a plurality of sub-joint portions spaced apart from each other.

[0161] Hereinafter, taking the case where there are four sub-joint portions as an example, along the rotation direction r, a first sub-joint portion 4a, a second sub-joint portion 4b, a third sub-joint portion 4c, and a fourth sub-joint portion 4d are sequentially arranged. Among them, the first sub-joint portion 4a and the third sub-joint portion 4c are radially opposite, the second sub-joint portion 4b and the fourth sub-joint portion 4d are radially opposite, and at least a part of one of the second sub-joint portion 4b and the fourth sub-joint portion 4d is arranged to be movable relative to the first sub-joint portion 4a and the third sub-joint portion 4c. Each sub-joint portion includes a part of the central column 45; the first sub-joint portion 4a and the third sub-joint portion 4c can also be referred to as fixed joint portions, and the second sub-joint portion 4b and the fourth sub-joint portion 4d can also be referred to as movable joint portions. The movable joint portions are movable relative to the fixed joint portions.

[0162] Preferably, the structure of the first sub-joint portion 4a is the same as the structure of the third sub-joint portion 4c, and the structure of the second sub-joint portion 4b is the same as the structure of the fourth sub-joint portion 4d; both the fixed joint portion and the movable joint portion extend from the connecting portion 41 / the chassis 42 / the base 43. Among them, the movable joint portion is arranged as a cantilever extending from the connecting portion 41 / the chassis 42 / the base 43. For example, along the radial direction of the second driving force receiving member 4, the dimension of the connection portion between the movable joint portion and the connecting portion 41 / the chassis 42 / the base 43 is smaller than the dimension of the connection portion between the fixed joint portion and the connecting portion 41 / the chassis 42 / the base 43; more preferably, both the fixed joint portion and the movable joint portion extend from the side of the base 43 away from the connecting portion 41.

[0163] The fixed coupling portion includes a base plate 450, a base portion 461, and a projection 462. Along the radial direction perpendicular to the rotation axis L21, the base plate 450, the base portion 461, and the projection 462 are arranged in sequence and gradually move away from the rotation axis L21. The base plate 450 is a part of the central column 45. A guiding surface 463 is provided on the base portion 461, and a driving surface 464 is provided on the projection 462. Along the rotation direction r, the driving surface 464 is located upstream of the guiding surface 463. Along the rotation axis L21, an abutting surface 466 is further formed on the base portion 461; the movable coupling portion includes the base plate 450, a flange portion 47 provided on the base plate 450, and a pressing portion 48. The pressing portion 48 extends from the base plate 450 in a direction away from the rotation axis L21, and a pressing surface 481 is formed at one end away from the connecting portion 41; the flange portion 47 in this embodiment also has the function of preventing the second driving force receiving member 4 from disengaging from the force output member 203. Therefore, the flange portion 47 can be regarded as an embodiment of the anti-disengagement portion. Specifically, the flange portion 47 in this embodiment is provided to radially protrude outward from the free end (the free end of the central column) 451 of the base plate 450.

[0164] Preferably, when observed in a direction perpendicular to the rotation axis L21, the abutting surface 466 and the pressing surface 481 are substantially flush and perpendicular to the rotation axis L21. Further, along the rotation axis L21, both the abutting surface 466 and the pressing surface 481 are separated from the free end 451 of the central column, or rather, both the abutting surface 466 and the pressing surface 481 are closer to the connecting portion 41 than the free end 451 of the central column. A limiting space 482 is formed between the pressing surface 481 and the free end 451 of the central column.

[0165] To more clearly show the coupling process between the second driving force receiving member 4 and the force output member 203, a part of the force output member 203 in this embodiment and the following embodiments is cut off so that the driving portion 180h and the braking portion 203a are both exposed.

[0166] Such as Figure 8A 、 Figure 8B and Figure 8CAs shown, when the second driving force receiving member 4 gradually approaches the force output member 203 along the rotation axis L21 with the processing cartridge C, the guiding surface 463 starts to abut against the inward protrusion 208e of the second braking engagement member 208. As the processing cartridge C continues to be installed, the second braking engagement member 208 starts to be guided by the guiding surface 463 along the rotation direction r. Thus, the first braking engagement member 204 will also move along the rotation direction r together, that is, the entire braking portion 203a moves gradually away from the driving portion 180h along the rotation direction r. At the same time, along the rotation axis L21, the upper protrusion 204f and the lower protrusion 180g no longer face each other and are gradually offset, and the entire braking portion 203a also retracts into the interior of the cylindrical portion 180c (retracted state). In this way, the driving portion 180h will not be driven by the braking portion 203a to retract into the interior of the cylindrical portion 180c together.

[0167] Along the rotation direction r, as the driving portion 180h and the braking portion 203a are separated from each other, the convex block 462 enters between the driving portion 180h and the braking portion 203a, and the driving force output surface 180d faces the driving surface 464; the braking portion 203a (the second braking engagement member 204) is at least abutted by the abutting surface 466 and held in the retracted state. The second driving force receiving member 4 is combined with the force output member 203. When the driving portion 180h starts to rotate, the driving force output surface 180d outputs a driving force to the driving surface 464, and the second driving force receiving member 4 starts to rotate around the rotation axis L21.

[0168] It should be noted that during the combination of the second driving force receiving member 4 and the force output member 203, if the braking portion 203a (the second braking engagement member 204) slides past the abutting surface 466 after being guided by the guiding surface 463 and reaches a position opposite to the pressing surface 481, the braking portion 203a (the second braking engagement member 204) can still be held in the retracted state. That is to say, the pressing surface 481 has the function of preventing the braking portion 203a (the second braking engagement member 204) from protruding from the retracted state and returning to the initial state (protruded state).

[0169] In this embodiment, the braking portion 203a is held in the retracted state. During the operation of the processing cartridge, the braking portion 203a will no longer output braking force to the second driving force receiving member 4. Further, during the removal of the processing cartridge, the frictional force between the braking portion 203a and the second driving force receiving member 4 can be reduced. Further, during the combination process of the second driving force receiving member 4 and the force output member 203, the movable coupling portion is pressed by the braking portion 203a (the second braking engagement member 204) and deformed in a direction close to the rotation axis L21 until the inward protruding portion 208e crosses the flange portion 47 and enters the limiting space 482. The positioning post 180i of the driving portion enters the positioning hole 452 of the central column 45. Subsequently, the movable coupling portion resets, and the inward protruding portion 208e is combined (locked) with the flange portion 47. At the same time, the positioning post 180i also pushes / squeezes the central column 45 / substrate 450 in a direction away from the rotation axis L21. Along the axis M1, the first braking engagement member 208 is stably positioned in the second driving force receiving member 4, and the first braking engagement member 208 is tightly combined with the flange portion 47. The possible axial movement of the force output member 203 is stopped, and the force output member 203 will not retract in a direction away from the second driving force receiving member 4 and disengage from the second driving force receiving member 4. It can be seen that the movable coupling portion in this embodiment can swing between approaching and departing from the rotation axis L21 relative to the fixed coupling portion. At the same time, the inward protruding portion 208e also remains in contact with the contact surface 466, and the stable combination of the force output member 203 and the second driving force receiving member 4 can be maintained.

[0170] [Embodiment IV]

[0171] Figure 9 is a perspective view of the driving force receiving member related to Embodiment IV of the present utility model; Figure 10A is a perspective view of the driving force receiving member related to Embodiment IV of the present utility model when starting to combine with the force output member; Figure 10B is a perspective view of the driving force receiving member related to Embodiment IV of the present utility model after being combined with the force output member; Figure 10C is a side view of the driving force receiving member related to Embodiment IV of the present utility model after being combined with the force output member, observed in a direction perpendicular to the rotation axis of the driving force receiving member.

[0172] As Figure 9As shown, the joint portion 44 includes a central column 45, a base portion 461, and a convex block 462. Along the radial direction perpendicular to the rotation axis L21 of the second driving force receiving member 4, the central column 45, the base portion 461, and the convex block 462 are successively farther away from the rotation axis L21. In this embodiment, the base portion 461 extends around the outer circumferential surface of the central column 45 for one week, that is, the central column 45 is surrounded by the base portion 461. Therefore, the base portion 461 can also be regarded as the pressing portion 48, and the end surface of the base portion 461 is the pressing surface 481. Along the rotation axis L21, the convex block 462 extends farther away from the connecting portion 41 than the base portion 461, that is, the convex block 462 extends beyond the pressing surface 481. At the same time, a driving surface 464 for receiving the driving force is formed on the convex block 462.

[0173] Furthermore, the joint portion 44 further includes an anti-disengagement portion provided on the central column 45. Preferably, the anti-disengagement portion is a flange portion 47 provided at the free end of the central column 45. Along the rotation axis L21, a limiting space 482 is formed between the flange portion 47 and the pressing surface 481.

[0174] As Figure 10A shown, before the second driving force receiving member 4 is combined with the force output member 203, along the rotation direction r, the driving portion 180h and the braking portion 203a are separated from each other. The joint portion 44 does not have to be provided with a guiding surface for separating the braking portion 203a from the driving portion 180h, and the structure of the joint portion 44 can be simplified.

[0175] During the process of combining the second driving force receiving member 4 with the force output member 203, the braking portion 203a (the inward protruding portion 208e of the second braking engagement member) is first pressed by the flange portion 47 and retracts. With the installation of the processing cartridge C, the inward protruding portion 208e of the second braking engagement member and the flange portion 47 are squeezed against each other and finally cross over the flange portion 47 and enter the limiting space 482. Similarly, the positioning post 180i of the driving portion enters the positioning hole 452 of the central column 45. The braking portion 203a (the inward protruding portion 208e of the second braking engagement member) is pressed by the pressing surface 481 and cannot protrude. The inward protruding portion 208e is combined with the flange portion 47, and the possible axial movement of the force output member 203 is stopped. The force output member 203 will not retract in the direction away from the second driving force receiving member 4 and become disengaged from the second driving force receiving member 4. The convex block 462 enters between the driving portion 180h and the braking portion 203a, the driving force output surface 180d is opposite to the driving surface 464, and the second driving force receiving member 4 and the force output member 203 are combined. As the driving portion 180h starts to rotate in the direction shown by r, the driving force output surface 180d outputs the driving force to the driving surface 464, and the second driving force receiving member 4 also rotates in the direction shown by r. The braking portion 203a will no longer output the braking force to the second driving force receiving member 4.

[0176] [Embodiment Five]

[0177] Figure 11 is a perspective view of the driving force receiving member according to Embodiment 5 of the present utility model; Figure 12A is a perspective view when observing along a direction intersecting with the rotation axis of the driving force receiving member before the driving force receiving member according to Embodiment 5 of the present utility model is combined with the force output member in the first state; Figure 12B is a perspective view when observing along another direction intersecting with the rotation axis of the driving force receiving member after the driving force receiving member according to Embodiment 5 of the present utility model is combined with the force output member in the first state; Figure 13A is a perspective view of the driving force receiving member according to Embodiment 5 of the present utility model after being combined with the force output member in the first state; Figure 13B is a perspective view when observing along a direction perpendicular to the rotation axis of the driving force receiving member after the driving force receiving member according to Embodiment 5 of the present utility model is combined with the force output member in the first state; Figure 14 is a perspective view when observing along a direction perpendicular to the rotation axis of the driving force receiving member when the driving force receiving member according to Embodiment 5 of the present utility model starts to be combined with the force output member in the second state.

[0178] The above describes the embodiment of applying the driving force to the second driving force receiving member 4 by using the driving force output surface 180d provided in the driving part 180h. However, during the operation of the force output member 203, the braking part 203a will also rotate following the driving part 180h. Therefore, the braking part 203a can also be used as a component for applying the driving force to the second driving force receiving member 4. The following will describe the embodiment of the braking part 203a and the second driving force receiving member 4 combining to transmit the driving force.

[0179] As Figure 11 shown, the driving force receiving part 46 still includes a base part 461 and a convex block 462 located radially outside the central column 45. Among them, the convex block 462 is farther from the rotation axis L21 than the base part 461. The convex block 462 is provided with a driving surface 464 for receiving the driving force. This driving surface 464 can be combined with the first braking engagement member 204 or the second braking engagement member 208. This embodiment will describe the combination of the driving surface 464 and the second braking engagement member 208.

[0180] As described above, along the radial direction of the force output member 203, the second braking engagement member 208 is located inside the first braking engagement member 204. Preferably, along the rotation direction r, the driving surface 464 will face the second braking engagement member 208.

[0181] As shown in the figure, along the rotation direction r, the second braking engagement member 208 has an inner output surface 208f located downstream. Relative to the rotation axis L21, the inner output surface 208f is helically rising in a direction opposite to the rotation direction r. Preferably, the driving surface 464 is arranged as a helical surface that mates with the inner output surface 208f.

[0182] As Figure 12A , Figure 12B , Figure 13A and Figure 13B shown, wherein, to more clearly show the engagement state between the second braking engagement member 208 and the driving force receiving member 2, Figure 13B the driving part 180h and the first braking engagement member 204 are hidden in

[0183] Before the second driving force receiving member 4 is engaged with the force output member 203, along the rotation direction r, the driving part 180h and the braking part 203a move away from each other. During the process of the second driving force receiving member 4 being engaged with the force output member 203, if the braking part 203a abuts against the bump 462, then the braking part 203a will be pressed and retracted. As the force output member 203 rotates, when the driving part 180h abuts against the braking part 203a, the driving part 180h and the braking part 203a rotate together in the direction shown by r until the bump 462 no longer abuts against the braking part 203a and the driving part 180h, and then the braking part 203a and the driving part 180h will extend. As Figure 13B shown, the inner output surface 208f abuts against the driving surface 464, and the second braking engagement member 208 starts to output driving force to the second driving force receiving member 4, and the braking part 203a will no longer apply braking force to the second driving force receiving member 4.

[0184] As Figure 14 shown, before the second driving force receiving member 4 is engaged with the force output member 203, along the rotation direction r, the driving part 180h and the braking part 203a approach each other. With the installation of the processing cartridge C, the bump 462 presses the driving part 180h and / or the braking part 203a, and the driving part 180h and / or the braking part 203a retract; as the driving part 180h rotates, the driving part 180h will push the braking part 203a to rotate together. When the driving part 180h and / or the braking part 203a are no longer pressed by the bump 462, the first spring / drum drive coupling spring 210 and / or the second spring / braking engagement spring 211 provided in the force output member 203 release elastic force to make the driving part 180h and / or the braking part 203a extend. Subsequently, the inner output surface 208f abuts against the driving surface 464, and the second braking engagement member 208 starts to output driving force to the second driving force receiving member 4, and the braking part 203a will no longer apply braking force to the second driving force receiving member 4.

[0185] Further, the base 461 is also provided with a holding surface 4611. Along the rotation axis L21, the holding surface 4611 faces the connecting portion 41. Along the radial direction perpendicular to the rotation axis L21, the holding surface 4611 is closer to the rotation axis L21 than the driving surface 464. When the inner output surface 208f abuts against the driving surface 464, the inner protrusion 208e of the second braking engagement member abuts against the holding surface 4611, and the braking portion 203a can be held in a state of being stably and tightly combined with the second driving force receiving member 4. Therefore, the holding surface 4611 can be regarded as an embodiment of the anti-disengagement portion 47.

[0186] Furthermore, the base 461 further includes a guiding surface 463 disposed adjacent to the holding surface 4611. As Figure 12A and Figure 12B shown, during the combination process of the second driving force receiving member 4 and the force output member 203, the guiding surface 463 abuts against the braking portion 203a to guide the inner protrusion 208e to the position where it is combined with the holding surface 4611 and to lead the outer output surface 204g / inner output surface 208f to the position opposite to the driving surface 464.

[0187] [Embodiment Six]

[0188] Figure 15 is a perspective view of the driving force receiving member according to Embodiment Six of the present utility model; Figure 16A is a perspective view of the driving force receiving member according to Embodiment Six of the present utility model after being combined with the driving portion; Figure 16B is a side view of the driving force receiving member according to Embodiment Six of the present utility model after being combined with the driving portion, when observed along the direction perpendicular to the rotation axis of the driving force receiving member.

[0189] Different from Embodiment Five, in this embodiment, the second driving force receiving member 4 is driven by the first braking engagement member 204. Along the rotation direction r, the first braking engagement member 204 has an outer output surface 204g located downstream, and the outer output surface 204g is also arranged to extend spirally upward in the direction opposite to the rotation direction r.

[0190] As Figure 15 shown, the driving force receiving portion 46 in this embodiment includes a base 461 and a convex block 462 located radially outside the central column 45. The convex block 462 is farther from the rotation axis L21 than the base 461. A driving surface 464 that can cooperate with the outer output surface 204g is provided on the convex block 462. Along the radial direction perpendicular to the rotation axis L21, a relief portion 468 is also formed between the driving surface 464 and the central column 45. Specifically, the relief portion 468 is formed on the convex block 462.

[0191] As Figure 16AAs shown, to more clearly show the function of the avoidance portion 468, the first braking engagement member 204 is hidden in the figure. The combination process of the combination portion 44 / the second driving force receiving member 4 and the force output member 203 in this embodiment is the same as that in the fifth embodiment, and will not be elaborated here. However, when the second driving force receiving member 4 and the force output member 203 are combined, at least a part of the second braking engagement member 208 enters the avoidance portion 468, as Figure 16B shown, the outer output surface 204g abuts against the driving surface 464, and the first braking engagement member 204 starts to output driving force to the second driving force receiving member 4, and the braking portion 203a will no longer apply braking force to the second driving force receiving member 4.

[0192] Preferably, the base portion 461 in this embodiment can also be provided with the above-mentioned holding surface 4611 or a rough surface or a surface attached with elastic rubber. While the outer output surface 204g abuts against the driving surface 464, the inner protrusion portion 208e of the second braking engagement member 208 entering the avoidance portion 468 also combines with the holding surface 4611 / rough surface / surface attached with elastic rubber. Therefore, the braking portion 203a can be held in a state of being stably and tightly combined with the second driving force receiving member 4.

[0193] Optionally, when the holding surface 4611 is not provided in the combination portion 44, the base portion 461 forming the holding surface 4611 can also be omitted. However, along the radial direction of the second driving force receiving member 4, the bottom plate 441 located between the central column 45 and the bump 462 can be regarded as the base portion 461, and the structure of the combination portion 44 can be simplified.

[0194] As described above, the holding surface 4611 can be used to prevent the second driving force receiving member 4 from disengaging from the force output member 203. Therefore, the holding surface 4611 or a rough surface or a surface attached with elastic rubber can also be regarded as an embodiment of the anti-disengagement portion 47; in each embodiment of the anti-disengagement portion 47, those skilled in the art can select according to design requirements to ensure the stable and tight combination of the second driving force receiving member 4 and the force output member 203.

[0195] [Embodiment Seven]

[0196] Figure 17 is a perspective view of the driving force receiving member according to the seventh embodiment of the present invention; Figure 18 is a schematic view of the state after the combination portion of the driving force receiving member according to the seventh embodiment of the present invention is separated from the base; Figure 19 is a side view when observed in a direction perpendicular to the rotation axis of the driving force receiving member according to the seventh embodiment of the present invention; Figure 20 is a side view when observed in a direction perpendicular to the rotation axis of the driving force receiving member after the driving force receiving member according to the seventh embodiment of the present invention is combined with the force output member.

[0197] In this embodiment, the engaging portion 44 and the engaged portion 4z are also formed separately. In this way, the engaging portion 44 and the engaged portion 4z can be made of different materials. For example, the engaging portion 44 is made of metal, and the engaged portion 4z is made of a resin material. The engaging portion 44 for engaging with and disengaging from the force output member 203 will be more wear-resistant and have a higher hardness. In some embodiments, the engaging portion 44 and the engaged portion 4z can also be made of the same material.

[0198] As Figure 18 shown, the engaging portion 44 has a bottom plate 441 and a driving force transmission portion 442 extending from one side of the bottom plate 441. Correspondingly, the engaged portion 4z is provided with a movable cavity 432 that can be engaged with the driving force transmission portion 442. The central column 45 and the driving force receiving portion 46 both extend from the other side of the bottom plate 441. That is to say, the driving force receiving portion 46 is connected to the central column 45 through the bottom plate 441. Therefore, at least a part of the bottom plate 441 can also be regarded as a base portion 461.

[0199] The driving force receiving portion 46 includes a base portion 461 and a convex block 462 located radially outside the central column 45. The convex block 462 is farther from the rotation axis L21 than the base portion 461. The driving force receiving portion 46 is arranged to be engaged with the braking portion 203a. When the force output member 203 rotates in the rotation direction r, at least one of the outer output surface 204g and the inner output surface 208f in the braking portion 203a outputs a driving force to the driving force receiving portion 46.

[0200] Similar to Embodiment Six, along the radial direction perpendicular to the rotation axis L21, an avoidance portion 468 is also formed between the driving surface 464 and the central column 45. Specifically, the avoidance portion 468 is provided on the convex block 462. When the second driving force receiving member 4 is engaged with the force output member 203, the second braking engagement member 208 enters the avoidance portion 468, and the first braking engagement member 204 faces the driving surface 464. Therefore, there are three ways for the force output member 203 to output a driving force to the second driving force receiving member 4:

[0201] First, the outer output surface 204g of the first braking engagement member 204 is engaged with the driving surface 464, and the second braking engagement member 208 does not contact the surface in the avoidance portion 468. The driving force of the force output member 203 is transmitted from the first braking engagement member 204 to the second driving force receiving member 4;

[0202] Second, the outer output surface 204g of the first braking engagement member 204 is not combined with the driving surface 464, and the second braking engagement member 208 contacts the surface in the avoidance portion 468. The driving force of the force output member 203 is transmitted by the second braking engagement member 208 to the second driving force receiving member 4. At this time, the surface in the avoidance portion 468 for receiving the driving force will be the said surface in the avoidance portion 468;

[0203] Third, the outer output surface 204g of the first braking engagement member 204 is combined with the driving surface 464, and the second braking engagement member 208 also contacts the surface in the avoidance portion 468. The driving force of the force output member 203 is transmitted by the first braking engagement member 204 and the second braking engagement member 208 simultaneously to the second driving force receiving member 4. At this time, both the driving surface 464 and the said surface in the avoidance portion 468 are surfaces for receiving the driving force.

[0204] Furthermore, the driving force receiving portion 46 further includes a protrusion 469 provided on the surface for receiving the driving force. When the second driving force receiving member 4 is combined with the force output member 203, the protrusion 469 is combined with the braking portion 203a. During the process of the braking portion 203a outputting the driving force to the second driving force receiving member 4, the braking portion 203a will be subject to a reaction force from the second driving force receiving member 4 and tend to be disengaged from the second driving force receiving member 4. The provision of the above protrusion 469 can increase the frictional force between the braking portion 203a and the second driving force receiving member 4, thereby preventing the second driving force receiving member 4 from being disengaged from the braking portion 203a. Therefore, the protrusion 469 can also be regarded as an embodiment of the above anti-disengagement portion 47.

[0205] The surface for receiving the driving force (taking the driving surface 464 as an example) has a shape matching the outer output surface 204g and / or the inner output surface 208f, and a plurality of protrusions 469 are provided on the surface for receiving the driving force, as Figure 19 and Figure 20 shown, the surface for receiving the driving force is provided as a helical surface extending around the rotation axis L21. When observed in a direction perpendicular to the rotation axis L21, the protrusions 469 are inclined as a whole towards the side of the photosensitive drum 21 / connection portion 41 and have a surface 4691 facing the photosensitive drum 21 / connection portion 41, thereby increasing the frictional force between the force output member 203 and the second driving force receiving member 4; alternatively, the plurality of protrusions 469 can also be replaced by a rough surface, elastic rubber, etc.

[0206] When the engaging portion 44 and the engaged portion 4z do not need to be made of different materials, the engaging portion 44 and the engaged portion 4z can also be integrally formed. Therefore, the manufacturing of the second driving force receiving member 4 will become easier.

[0207] [Embodiment Eight]

[0208] Figure 21 This is a perspective view of the driving force receiving member according to the eighth embodiment of the present utility model.

[0209] In this embodiment, on the basis of the seventh embodiment, the structure of the convex block 462 is further simplified. As shown in the figure, along the radial direction perpendicular to the rotation axis L21, an avoidance portion 468 is also formed between the driving surface 464 and the central column 45. However, this avoidance portion 468 is no longer formed on the convex block 462, but is located between the convex block 462 and the central column 45. That is to say, along the radial direction perpendicular to the rotation axis L21, the space between the convex block 462 and the central column 45 is the avoidance portion 468.

[0210] When the second driving force receiving member 4 is combined with the force output member 203, the second braking engagement member 208 enters the avoidance portion 468. The driving surface 464 provided on the convex block 462 faces the outer output surface 204g, and the driving force output by the force output member 203 is transmitted from the outer output surface 204g to the driving surface 464.

[0211] Alternatively, the second driving force receiving member 4 can also be arranged such that when the second driving force receiving member 4 is combined with the force output member 203, the driving surface 464 faces the inner output surface 208f, and the driving force output by the force output member 203 is transmitted from the inner output surface 208f to the driving surface 464.

[0212] [Embodiment Nine]

[0213] Figure 22 This is a perspective view of the driving force receiving member according to the ninth embodiment of the present utility model; Figure 23 This is a perspective view of the driving force receiving member and the force output member after combination according to the ninth embodiment of the present utility model.

[0214] According to the structure of the force output member 203, the second driving force receiving member 4 in this embodiment is arranged such that when the second driving force receiving member 4 is combined with the force output member 203, the second driving force receiving member 4 is combined with the plane 208g of the second braking engagement member 208.

[0215] The driving force receiving portion 46 includes a guiding surface 463 provided on the convex block 462 and a driving surface 464 adjacent to the guiding surface 463. Among them, the driving surface 464 is a surface matching the plane 208g. As Figure 22 shown, the driving surface 464 is parallel to the rotation axis L21.

[0216] Preferably, the guiding surface 463 is arranged as a helical surface extending around the rotation axis L21. As Figure 23As shown, during the process of the second driving force receiving member 4 being combined with the force output member 203, the guiding surface 463 is guided by the outer output surface 204g or the inner output surface 208f. Therefore, the driving force receiving portion 46 can smoothly reach the position where the plane 208g faces the driving surface 464. As the force output member 203 rotates, the driving force is transmitted from the plane 208g to the driving surface 464.

[0217] [Embodiment Ten]

[0218] Figure 24A is an exploded view of the driving force receiving member related to Embodiment Ten of the present utility model; Figure 24B is an exploded view of the driving force receiving member after being separated from the second unit housing in a modified embodiment of Embodiment Ten of the present utility model; Figure 24C is along Figure 24B a cross-sectional view taken along the DD direction in; Figure 25A is a perspective view of the driving force receiving member related to Embodiment Ten of the present utility model; Figure 25B is a side view when observing along the rotation axis of the driving force receiving member related to Embodiment Ten of the present utility model; Figure 26A and Figure 26B is a state diagram after the driving force receiving member related to Embodiment Ten of the present utility model is combined with the force output member.

[0219] If the combination method of using the braking portion 203a to output the driving force to the second driving force receiving member 4 as described in the above embodiment is adopted between the second driving force receiving member 4 and the force output member 203, during actual testing, the imaging device will generate unacceptable noises. After preliminary analysis, the noises are generated by the mutual collision of the driving portion 180h and the braking portion 203a that are close to each other, or by the contact between the components of the force output member 203 and the inner wall of the imaging device, or by the braking portion 203a retracting into the cylindrical portion 180c, or by the multiple collisions between the braking portion 203a and the second driving force receiving member 4 before the second driving force receiving member 4 and the force output member 203 are completely combined.

[0220] Therefore, this embodiment provides a second driving force receiving member 4 that can eliminate the above noises. As Figure 24AAs shown, the second driving force receiving member 4 includes a connecting portion 41, a chassis 42, a main body portion 4x, and an auxiliary member 4y. Among them, the main body portion 4x is connected to the connecting portion 41 or the chassis 42, and the auxiliary member 4y is arranged to be rotatable relative to the main body portion 4x / the processing cartridge housing / the photosensitive drum 21. At least a part of the auxiliary member 4y and the connecting portion 41 are respectively located on both sides of the chassis 42; specifically, the main body portion 4x includes a base 43 connected to the connecting portion 41 or the chassis 42 and a coupling portion 44 provided on the base 43. The coupling portion 44 includes a central column 45 and a driving force receiving portion 46 extending radially outward along the central column 45. The rotation axis L21 passes through the central column 45. The driving force receiving portion 46 includes a base portion 461 and a convex block 462. Along the radial direction of the second driving force receiving member 4 / the coupling portion 44, the convex block 462 is located radially outside the base portion 461; as described above, the coupling portion 44 further includes a bottom plate 441. The central column 45 extends along the rotation axis L21 from one side of the bottom plate 441. The coupling portion 44 is connected to the base 43 through the bottom plate 441. In this embodiment, at least a part of the bottom plate 441 can be regarded as the base portion 461.

[0221] The convex block 462 is arranged as a columnar body extending along the rotation axis L21, and a driving surface 464 for receiving the driving force is provided on the convex block 462. Preferably, the main body portion 4x, the connecting portion 41, and the chassis 42 are integrally formed, and the base 43 and the coupling portion 44 are also integrally formed. The convex block 462 further has a fourth surface 4621. Along the rotation axis L21, the fourth surface 4621 is the surface of the convex block 462 that is farthest from the connecting portion 41. Along the rotation axis L21, when the convex block 462 extends beyond the central column 45, the fourth surface 4621 is the end surface 4w of the second driving force receiving member 4. Preferably, the fourth surface 4621 is a plane, and more preferably, the fourth surface 4621 is a plane perpendicular to the rotation axis L21.

[0222] The auxiliary member 4y includes a carrier 4y1, a separating member 4y2 protruding from the carrier 4y1, and a limited portion 4y4 provided on the carrier 4y1 or the separating member 4y2. In some embodiments, the auxiliary member 4y / the carrier 4y1 is sleeved on the outer side of the main body portion 4x. The main body portion 4x is further provided with a limiting portion 434 for engaging with the limited portion 4y4. Through the engagement of the limited portion 4y4 and the limiting portion 434, along the direction of the rotation axis L21, the auxiliary member 4y is restricted, and along the rotation direction r, the auxiliary member 4y is not restricted. In some embodiments, the carrier 4y1 is provided as an annular body with an accommodation cavity 4y6 formed therein. At least a part of the main body portion 4x is accommodated in the accommodation cavity 4y6. The limited portion 4y4 is provided as an engaging protrusion protruding radially from the annular body 4y1 into the accommodation cavity 4y6. The limiting portion 434 is an engaging groove provided on the outer surface of the base 43 or the engaging portion 44. The engaging groove 434 extends along the rotation direction r; conversely, the engaging groove can also be provided on the annular body 4y1, and the engaging protrusion 4y4 can also be provided on the base 43 or the engaging portion 44. The engaging protrusion can extend a full circle along the rotation direction r or only extend a predetermined angle along the rotation direction r.

[0223] In some embodiments, for facilitating the engagement of the engaging protrusion 4y4 and the engaging groove 434, the auxiliary member 4y is further provided with an elastic arm 4y3 connected to the annular body 4y1. The engaging protrusion 4y4 / the engaging groove 434 is provided on the elastic arm 4y3. By using the elastic arm 4y3 that can elastically deform relative to the annular body 4y1, a convenient engagement between the auxiliary member 4y and the main body portion 4x can be achieved; preferably, the elastic arm 4y3 is integrally formed with the main body portion 4y1, and a gap is formed between the elastic arm 4y3 and the main body portion 4y1 so that the elastic arm 4y3 can elastically deform relative to the main body portion 4y1; more preferably, in the case where the elastic arm 4y3 is provided, the engaging portion 4y4 / the engaged portion 434 is only provided on the elastic arm 4y3, which is more conducive to the convenient engagement between the auxiliary member 4y and the main body portion 4x.

[0224] In some embodiments, the auxiliary member 4y can also be sleeved on the housing of the processing cartridge. The limited portion 4y4 can be provided on the auxiliary member 4y, and a limiting portion for restricting the limited portion 4y4 can be provided on the housing, as long as it is ensured that the auxiliary member 4y can rotate around a direction parallel to the rotation axis L21 and the auxiliary member 4y will not be separated from the housing; for example, the auxiliary member 4y can be restricted by the way that the end face of the housing abuts against the auxiliary member 4y; based on this inventive concept, the auxiliary member 4y has multiple installation positions. For example, the auxiliary member 4y is sleeved on at least one of the charging member, the supply member, and the stirring member.

[0225] Specifically, such as Figure 24B and Figure 24CAs shown, the main body portion 4y1 still has an elastic arm 4y3, and the elastic arm 4y3 has an engaging portion 4y4. The housing / the second unit housing 2 includes a support member 25 and a limiting portion 434 provided in the support member 25. As shown in the figure, the auxiliary member 4y is rotatably supported by the support member 25. Along the rotation axis L21, the engaging portion 4y4 abuts against the limiting portion 434. Therefore, the auxiliary member 4y is restricted in the direction where the rotation axis L21 is located, but in the rotation direction r, the auxiliary member 4y is not restricted. Further, the auxiliary member 4y is sleeved on the outside of the main body portion 4x, or rather, the main body portion 4x enters the accommodation cavity 4y6, and the auxiliary member 4y can rotate around the main body portion 4x.

[0226] In some embodiments, the auxiliary member 4y can also be rotatably mounted in a preset positioning groove in the housing or the main body portion 4x. In this structure, there is no need to additionally provide a component for supporting the auxiliary member 4y in the positioning groove, and the inner wall of the positioning groove can be used to position the auxiliary member 4y. Thus, the carrier 4y1 can also be set as a solid, as long as the carrier 4y1 can rotate relative to the housing / the photosensitive drum 21.

[0227] Preferably, when the auxiliary member 4y and the main body portion 4x are coaxially arranged, along the radial direction of the second driving force receiving member 4, the separating member 4y2 and the convex block 462 are spaced apart from each other. Thus, the auxiliary member 4y provided with the separating member 4y2 can freely rotate around the rotation axis L21.

[0228] Further, the separating member 4y2 is provided with a guiding surface 463 and a barb surface 46f. Along the rotation axis L21, the separating member 4y2 has a tip portion 4y21 that is farthest from the connecting portion 41. Among them, the guiding surface 463 is used to guide the separating member 4y2 to a predetermined position. The barb surface 46f is set to be inclined relative to the rotation axis L21, and the inclination direction of the barb surface 465 is such that when viewed along the direction perpendicular to the rotation axis L21, the barb surface 46f faces the connecting portion 41. Therefore, the barb surface 46f can prevent the braking portion 203a from moving towards the flange portion 180a, that is, the barb surface 46f can prevent the force output member 203 from separating from the second driving force receiving member 4.

[0229] During the movement of the second driving force receiving member 4 towards the force output member 203, the guiding surface 463 abuts against the braking portion 203a and forces the braking portion 203a to move away from the driving portion 180h along the rotation direction r. Subsequently, along the rotation direction r, the separating member 4y2 enters the third space K3 between the driving portion 180h and the braking portion 203a. The separating member 4y2 faces the driving force output surface 180d. At the same time, the convex block 462 reaches the downstream of the front surface 180g1 and is located in the first space K1, and the front surface 180g1 faces the driving surface 464.

[0230] When the force output member 203 starts to rotate, the driving force output by the driving portion 180h is transmitted to the second driving force receiving member 4 through the abutment between the front surface 180g1 and the driving surface 464, and the hook surface 46f is combined with the braking portion 203a. Since the hook surface 46f is set to be an inclined surface as described above, the braking portion 203a is "hooked" by the hook surface 46f and will not move along the rotation axis L21 toward the flange portion 180a. The hook surface 46f can also be regarded as an embodiment of the anti-slip portion.

[0231] The driving part 180 and the braking part 203a are separated by the separating member 4y2, or in other words, at least a part of the separating member 4y2 enters the third space K3. When the second driving force receiving member 4 described in this embodiment receives the driving force output by the force output member 203, the noise emitted by the imaging device is eliminated. Accordingly, as long as the separating member 4y2 can enter the third space K3, so that the driving part 180h and the braking part 203a are separated from each other along the rotation direction r, the barb surface 46f does not need to be set.

[0232] As described above, the separator 4y2 in this embodiment is configured to become movable as the carrier 4y1 rotates relative to the housing / photosensitive drum 21. Therefore, during the installation and removal of the processing box C, the movable carrier 4y1 / separator 4y2 improves the installation flexibility and removal flexibility of the processing box C, and reduces the risk of interference between the processing box C and the imaging device.

[0233] [Example 11]

[0234] Figure 27 is a sectional view of the process cartridge cut along a plane perpendicular to the rotation axis of the photosensitive drum; Figure 28 This is a state diagram of the driving force receiving member and the driving end cover after being separated from each other according to the eleventh embodiment of the present utility model; Figure 29 It is a cross-sectional view taken along the EE direction through the rotation axis of the driving force receiving member involved in the eleventh embodiment of the present utility model.

[0235] like Figure 28 and Figure 29 As shown, the second driving force receiving member 4 has a rotation axis L21, includes a connecting portion 41, a chassis 42, a base 43, a coupling portion 44 and an auxiliary member 4y rotatable relative to the coupling portion 44. Along the radial direction perpendicular to the rotation axis L21, the size of the chassis 42 is larger than that of the connecting portion 41 and the base 43, and the auxiliary member 4y is located radially outside the coupling portion 44, or in other words, the coupling portion 44 is located in the accommodating cavity 4y6 of the auxiliary member 4y.

[0236] The driving end cap 300 includes an end cap body 301 and a first exposure hole 302 provided on the end cap body 301. The second driving force receiving member 4 is exposed through the first exposure hole 302. Further, the driving end cap 300 further includes a blocking portion 303 extending from the end cap body 301. When the driving end cap 300 is installed, at least a part of the base 43, at least a part of the auxiliary member 4y, and at least a part of the driving force receiving portion 44 ( Figure 29 not shown in the figure) enter the first exposure hole 302. At the same time, the blocking portion 303 abuts against the second driving force receiving member 4.

[0237] Preferably, the blocking portion 303 abuts against the chassis 42. As Figure 29 shown, along the radial direction, the blocking portion 303 is located outside the first exposure hole 302. When the charging member 24 is squeezed against the photosensitive drum 21 by the elastic force applied by the elastic member 28, the squeezing force received by the second driving force receiving member 4 will be eliminated due to the abutment of the blocking portion 303 against the chassis 42. The position of the auxiliary member 4y in the first exposure hole 302 will not change, that is, the free rotation state of the auxiliary member 4y will not be affected. Accordingly, the resistance during the rotation of the auxiliary member 4y will not increase, and its rotation flexibility can be maintained.

[0238] More preferably, along the pushing direction k of the pushing force applied by the elastic member 28 to the charging member 24, the blocking portion 303 abuts against the chassis 42. At this time, the free rotation state of the auxiliary member 4y can be better maintained. It can be seen that along the radial direction of the second driving force receiving member 4, at least a part of the blocking portion 303 is located on the pushing direction k of the pushing force applied by the elastic member 28 to the charging member 24, or rather, at least a part of the blocking portion 303 is located on the pushing direction k where the elastic member 28 pushes the charging member 24.

[0239] In some embodiments, the blocking portion 303 can also be arranged to abut against other parts of the second driving force receiving member 4. For example, the blocking portion 303 abuts against the connecting portion 41, which can also prevent the increase in the resistance during the rotation of the auxiliary member 4y, thereby maintaining the rotation flexibility of the auxiliary member 4y.

[0240] Generally, along the longitudinal direction / left-right direction, separation contact mechanisms are provided at both ends of the processing cartridge C, namely, a right separation contact mechanism 5R located on the right side / non-driving side C2 and a left separation contact mechanism 5L located on the left side / driving side C1. When the left separation contact mechanism 5L and the right separation contact mechanism 5R simultaneously receive the acting force from the imaging device, the developing roller 11 and the photosensitive drum 21 can be smoothly separated from and approached each other.

[0241] The left separation contact mechanism 5L and the right separation contact mechanism 5R have the same structure. The structure of the left separation contact mechanism 5L will not be described below, and the component names and numbers of the right separation contact mechanism 5R will be directly cited.

[0242] [Embodiment Twelve]

[0243] Figure 30 is an exploded view of the separation contact mechanism and the drive end cover separated from the processing cartridge housing in Embodiment Twelve of the present invention; Figure 31A is a side view of the separation contact mechanism in the processing cartridge according to Embodiment Twelve of the present invention when in the retracted state, viewed from left to right in the left-right direction; Figure 31B is a side view of the separation contact mechanism in the processing cartridge according to Embodiment Twelve of the present invention when in the extended state, viewed from left to right in the left-right direction; Figure 31C is a side view of the separation contact mechanism in the processing cartridge according to Embodiment Twelve of the present invention when receiving the force applied by the separation control mechanism in the imaging device, viewed from left to right in the left-right direction.

[0244] In this embodiment, the separation contact mechanism 5 is provided to include a pressing member 5a and a force-receiving member 5b formed separately. The pressing force receiving portion 5a2 in the pressing member 5a is used to receive the pressing force of the top plate 94 linked with the door cover in the imaging device, thereby forcing the force-receiving member 5b to move from the retracted state to the extended state. The force-receiving member 5b in the extended state can receive the force (including the separation force and the restoring force) applied by the separation control mechanism 93 in the imaging device, so as to realize the relative movement of the first unit 100 and the second unit 200. At the same time, the developing roller 11 and the photosensitive drum 21 move away from and close to each other. Overall, the separation contact mechanism 5 includes a main body 52, and a acting portion 51 and a pressed portion 57 located at both ends of the main body 52 respectively. The acting portion 51 is a component for receiving the force applied by the separation control mechanism 93. When the pressing member 5a and the force-receiving member 5b are integrally formed, the pressing force receiving portion 5a2 can coincide with the pressed portion 57, and the force-receiving member 5b can be regarded as the acting portion 51; when the pressing member 5a and the force-receiving member 5b are formed separately, the pressing force receiving portion 5a2 can still coincide with the pressed portion 57, and the force-receiving member 5b can still be regarded as the acting portion 51. At least a part of the main body 52 is located in the pressing member 5a, Figure 30The structure shows that the entire body 52 is located within the pressing member 5a. At this time, the body 52 can also be regarded as the intermediate body 5a1 of the pressing member. Preferably, at least a part of the body 52 is located between the first driving force receiving member 3 and the second driving force receiving member 4. In this way, the processing cartridge C can be more compact in the front-back direction, and correspondingly, the size of the processing cartridge C in the front-back direction can also be effectively controlled. At the same time, the pressing member 5a also needs to be provided with a transmission member 5a3 for interacting with the force receiving member 5b to transmit force. Preferably, the transmission member 5a3 abuts against the force receiving member 5b.

[0245] The processing cartridge 100 further includes a cover 14 fixedly connected to the housing 1. The first driving force receiving member 3 passes through the cover 14. When the pressing member 5a and the force receiving member 5b are formed separately, there will be various choices for the installation position of the pressing member 5a. As long as the pressing force receiving portion 5a2 can receive the pressing force applied by the top plate 94 and the transmission member 5a3 can interact with the force receiving member 5b to transmit force, the pressing member 5a can be installed on any one of the housing 1, the cover 14, and the end caps 300 / 400. In particular, the installation freedom and design freedom of the pressing member main body 5a1 / body 52 can be greatly improved, and the space inside the processing cartridge C can be fully utilized. The force receiving member 5b can be installed either on the cover 14 or the end caps 300 / 400, or on the housing 1. As long as the force receiving member 5b can directly or indirectly drive the first unit 100 to move relative to the second unit 200 / housing 2 after receiving the acting force applied by the separation control mechanism 93, so that the developing roller 11 and the photosensitive drum 21 approach or move away from each other.

[0246] Furthermore, the separation contact mechanism 5 further includes a first elastic force applying member 59a combined with the pressing member 5a and / or the force receiving member 5b (as Figure 32 shown). Under the action of the first elastic force applying member 59a, at least the force receiving member 5b is in a retracted state, and the interference that the processing cartridge C may be subjected to during installation and disassembly can be eliminated.

[0247] As an implementation manner, the first elastic force applying member 59a is a compression spring, as Figure 32 shown. The groove portion 142 for accommodating the compression spring 59a is provided on any one of the housing 1, the cover 14, and the end caps 300 / 400. One end of the compression spring 59a abuts against the groove portion 142, and the other end abuts against the force receiving member main body 510. In this way, the force receiving member 5b can be held in a retracted state. Therefore, the first elastic force applying member 59a can also be referred to as the retracted state holding member of the force receiving member 5b / acting portion 51.

[0248] In another embodiment, the first elastic force applying member 59a can also be set as a tension spring. One end of the tension spring can be connected to any one of the housing 1, the cover 14, and the end caps 300 / 400, and the other end is connected to the force receiving member 5b, which can also play a role in keeping the force receiving member 5b in the retracted state.

[0249] As Figure 30 shown, the imaging holding member C3 in this embodiment is set as a tension spring, and there are various installation methods of the tension spring C3 in the processing cartridge C. For example, one end of the tension spring C3 is connected to the housing 1 or the cover 14, and the other end is connected to the end cap 300 / 400 or the housing 2, as long as it is ensured that the developing roller 11 and the photosensitive drum 21 can approach each other for imaging operation.

[0250] In some embodiments, the processing cartridge C further includes a locking portion 53 and a locked portion (which can be collectively referred to as a locking mechanism). When the first unit 100 and the second unit 200 approach each other, and the developing roller 11 and the photosensitive drum 21 also approach each other and can perform imaging, the locking portion 53 and the locked portion are locked to each other. When the first unit 100 and the second unit 200 move away from each other, and the developing roller 11 and the photosensitive drum 21 also move away from each other and cannot perform imaging, the locking portion 53 and the locked portion are unlocked. It can be seen that the function of the locking mechanism is at least partially the same as that of the imaging holding member C3. That is to say, only one of the locking mechanism and the imaging holding member C3 needs to be provided to keep the processing cartridge C1 in a state where imaging operation can be performed.

[0251] The setting position of the locking mechanism in the processing cartridge C is also various. As Figure 30 shown, the locking portion 53 is provided on the housing 1 or the cover 14, and the locked portion is provided on the end cap 300 / 400. In this way, the locking portion 53 can move with the movement of the housing 1 or the cover 14. As described above, when the force receiving member 5b is provided on the housing 1 or the cover 14, the locking portion 53 will move as the force receiving member 5b receives a force. Specifically, when the force receiving member 5b receives a separating force, the locking portion 53 and the locked portion are converted from the locked state to the unlocked state. When the force receiving member 5b receives a restoring force, the locking portion 53 and the locked portion are converted from the unlocked state to the locked state; conversely, when the force receiving member 5b receives a separating force, the locking portion 53 and the locked portion can also be converted from the unlocked state to the locked state. When the force receiving member 5b receives a restoring force, the locking portion 53 and the locked portion are converted from the locked state to the unlocked state. Along the front-rear direction, the directions of the separating force and the restoring force are opposite.

[0252] Preferably, at least one of the locking portion 53 and the locked portion is arranged to be movable relative to the other, facilitating the conversion between the state where the locking portion 53 and the locked portion are locked to each other and the state where they are unlocked from each other. As Figure 30 shown, the locking portion 53 is a cantilever extending from the cover 14 / housing 1, the first protrusion 531 is provided at the free end of the locking portion 53, the locked portion is a cantilever extending from the end cap main body 301, the locked portion has a connecting body 22 and a second protrusion 23, the connecting body 22 is connected to the end cap main body 301, and the second protrusion 23 is provided at the free end of the connecting body 22. Therefore, one end of the locking portion 53 is fixedly connected to the cover 14 / housing 1, and the first protrusion 531 provided at the other end (free end) of the locking portion 53 can be elastically deformed relative to the cover 14 / housing 1. One end of the connecting body 22 is fixedly connected to the end cap main body 301, and the second protrusion 23 provided at the other end (free end) of the connecting body 22 can be elastically deformed relative to the end cap main body 301.

[0253] With the above preferred method, the overall structure of the locking mechanism will become simple. The locking portion 53 can be integrally formed with the cover 14 or the housing 1, and the locked portion can be integrally formed with the end cap main body 301.

[0254] More preferably, in the up-down direction, both the locking portion 53 and the locked portion are located below the processing cartridge C. That is to say, in the up-down direction, relative to the rotation axis L3 parallel to the left-right direction, the locking portion 53 and the locked portion are arranged closer to the developing roller 11 / photosensitive drum 21. In this way, even if there is vibration generated when the first driving force receiving member 3 rotates, the combination of the locking portion 53 and the locked portion can eliminate at least a part of the vibration.

[0255] In the front-back direction, the locking position LP of the locking portion 53 and the locked portion is located between the developing roller 11 and the photosensitive drum 21. Thus, during the operation / imaging of the processing cartridge C, the risk that may affect the mutual approach of the developing roller 11 and the photosensitive drum 21 in the front-back direction (such as the elastic deformation of the compression spring / tension spring C3) can also be effectively eliminated; further, in Figure 31A and Figure 31BIn the case where the developing roller 11 and the photosensitive drum 21 are in contact at the imaging position DP when the processing cartridge C is working / imaging, in the front-rear direction, compared with the distance s1 from the rotation axis L21 of the photosensitive drum to the imaging position DP and the distance s2 from the rotation axis L11 of the developing roller 11 to the imaging position DP, the distance s3 from the locking position LP of the first protrusion 531 and the second protrusion 23 to the imaging position DP is smaller than any one of s1 and s2. That is to say, the position LP where the locking portion 53 and the locked portion are locked to each other is closer to the imaging position DP than any one of the rotation axis L11 of the developing roller 11 and the rotation axis of the photosensitive drum 21, which more effectively ensures that the developing roller 11 and the photosensitive drum 21 maintain good contact.

[0256] In one embodiment, s3 = 0. At this time, the locking position LP coincides with the imaging position DP in the up-down direction, and the contact between the developing roller 11 and the photosensitive drum 21 can be more stably maintained.

[0257] Figures 31A - 31C The process of the processing cartridge C from being installed at a predetermined position of the imaging device to the developing roller 11 and the photosensitive drum 21 reaching the separated state is shown. As Figure 31A shown, when the processing cartridge C reaches the predetermined position of the imaging device but the top plate 94 has not moved downward, under the action of the first elastic force applying member 59a, the force receiving member 5b is in the retracted state, and the locking portion 53 and the locked portion are locked to each other, that is, the first protrusion 531 and the second protrusion 23 are engaged with each other at the locking position LP, and the developing roller 11 and the photosensitive drum 21 are in contact at the imaging position DP. As Figure 31B shown, as the top plate 94 moves downward, the pressing force receiving portion 5a2 receives the pressing force, the pressing member 5a moves downward, and through the transmission member 5a3, the force receiving member 5b / acting portion 51 also moves downward and extends. The first elastic force applying member 59a undergoes elastic deformation. Finally, the force receiving member 5b / acting portion 51 enters the separation control mechanism 93. At this time, the separation control mechanism 93 is in an intermediate position where it does not contact the force receiving member 5b / acting portion 51.

[0258] When the imaging device does not need to work / image, the separation control mechanism 93 starts to move backward and applies a separation force to the force receiving member 5b / acting portion 51. The force receiving member 5b / acting portion 51 drives the first unit 100 including the cover 14 / case 1 to move relative to the second unit 200 / case 2, and the developing roller 11 and the photosensitive drum 21 move from the state of approaching each other to the state of moving away from each other. As Figure 31CAs shown, in this embodiment, the first unit 100 does not rotate relative to the second unit 200 / housing 2 about an axis parallel to the left - right direction, but translates relative to the second unit 200 / housing 2 in the front - rear direction. The first protrusion 531 and the second protrusion 23 press against each other, causing at least one of the locking portion 53 and the locked portion to elastically deform until the first protrusion 531 crosses over the second protrusion 23, or the second protrusion 23 crosses over the first protrusion 531.

[0259] During this separation process, the contact area / contact position of the force - receiving member 5b / acting portion 51 and the separation control mechanism 93 in the up - down direction does not change, and thus the unfavorable situation of the force - receiving member 5b / acting portion 51 and the separation control mechanism 93 becoming disengaged from each other will not occur. That is to say, the processing cartridge C can stably receive the separation force.

[0260] Continue as Figure 31C As shown, after the first unit 100 translates relative to the second unit 200, a separation gap g is formed between the developing roller 11 and the photosensitive drum 21. Along the front - rear direction, the first protrusion 531 and the second protrusion 23 are in contact with each other, and the separation gap g can be maintained. When the imaging holding member C3 is provided, the first protrusion 531 and the second protrusion 23 can also be maintained in a state of being in contact with each other. In this way, the entire processing cartridge C can be maintained in a state where the first unit 100 and the second unit 200 are separated from each other, or in other words, the processing cartridge C can be maintained in a state where the housing 1 and the housing 2 are separated from each other, or in other words, the processing cartridge C can be maintained in a state where the developing roller 11 and the photosensitive drum 21 are separated from each other.

[0261] Taking the mid - point Cg of the separation gap g in the front - rear direction as a reference, along the front - rear direction, compared with the distance s4 from the rotation axis L21 of the photosensitive drum to the mid - point Cg and the distance s5 from the rotation axis L11 of the developing roller 11 to the mid - point Cg, the distance s6 from the contact position AP of the first protrusion 531 and the second protrusion 23 to the mid - point Cg is smaller than either s4 or s5. That is to say, along the front - rear direction, the contact position AP of the locking portion 53 and the locked portion is closer to the mid - point Cg than either the rotation axis L11 of the developing roller 11 or the rotation axis L21 of the photosensitive drum 21. Such a design can keep the separation gap Cg stable.

[0262] In one embodiment, s6 = 0. At this time, the contact position AP coincides with the mid - point Cg in the up - down direction, and the separation gap Cg can be more effectively maintained.

[0263] When the separation control mechanism 93 starts to move backward and abuts against the force-receiving member 5b / acting portion 51, the separation control mechanism 93 can be regarded as being in the separation force application position. After the separation control mechanism 93 moves backward for a predetermined time / distance, the separation control mechanism 93 will move forward and return to the intermediate position; when the processing cartridge C needs to work / image again, the separation control mechanism 93 will move forward from the intermediate position and apply a restoring force to the force-receiving member 5b / acting portion 51. When the separation control mechanism 93 starts to move forward and abuts against the force-receiving member 5b / acting portion 51, the separation control mechanism 93 can be regarded as being in the restoring force application position. After the separation control mechanism 93 moves forward for a predetermined time / distance, the separation control mechanism 93 will move backward and return to the intermediate position.

[0264] When the separation control mechanism 93 applies a restoring force to the force-receiving member 5b / acting portion 51, the force-receiving member 5b / acting portion 51 drives the first unit 100 to translate again relative to the second unit 200 in the front-rear direction, and the developing roller 11 and the photosensitive drum 21 return from the state of moving away from each other to the state of approaching each other again; or rather, the force-receiving member 5b / acting portion 51 drives the cover 14, and then the cover 14 drives the housing 1 to translate in the front-rear direction, so that the developing roller 11 and the photosensitive drum 21 return from the state of moving away from each other to the state of approaching each other again; or rather, the force-receiving member 5b / acting portion 51 directly drives the housing 1 to translate in the front-rear direction, so that the developing roller 11 and the photosensitive drum 21 return from the state of moving away from each other to the state of approaching each other again.

[0265] During the process of the developing roller 11 and the photosensitive drum 21 moving from the separated state towards the approaching state, the locking portion 53 and the locked portion also move from the abutting position AP towards the locking position LP. Similarly, the first protrusion 531 and the second protrusion 23 press against each other, causing at least one of the locking portion 53 and the locked portion to undergo elastic deformation until the first protrusion 531 crosses over the second protrusion 23, or the second protrusion 23 crosses over the first protrusion. Subsequently, the locking portion 53 and the locked portion are locked to each other again.

[0266] As Figure 30 shown, the drive end cap 300 further includes a second exposed hole 305 provided on the end cap main body 301. The first driving force receiving member 3 is exposed through the second exposed hole 305, and the second driving force receiving member 4 is exposed through the second exposed hole 302. Generally, the inner diameter of the first exposed hole 305 is set to be slightly larger than the outer diameter of the first driving force receiving member 3, and the inner diameter of the second exposed hole 302 is set to be slightly larger than the outer diameter of the second driving force receiving member 4. In this way, both the first driving force receiving member 3 and the second driving force receiving member 4 can smoothly pass through the end cap main body 301.

[0267] In this embodiment, the first unit 100 / the cover 14 / the housing 1 is arranged to translate relative to the second unit 200. Different from the first unit 100 / the cover 14 / the housing 1 being arranged to rotate relative to the second unit 200 about an axis parallel to the left - right direction, when observed in the left - right direction, the first driving - force receiving member 3 in the first unit 100 will move within a reference plane including the front - back direction and the up - down direction. The reference plane intersects the left - right direction. Preferably, the reference plane is perpendicular to the left - right direction. Therefore, the first driving - force receiving member 3 will interfere with the movement of the first unit 100 / the cover 14 / the housing 1. For this reason, the present utility model also provides the following first solution.

[0268] The first driving - force receiving member 3 includes an outer engaging portion 31 for receiving a driving force from an imaging device and an inner engaging portion 32 for engaging with components within the processing cartridge. The inner engaging portion 32 is used to transfer the driving force received by the outer engaging portion 31 to other components of the processing cartridge C. Therefore, the structural form of the inner engaging portion 32 is diverse. It can be a common gear, or a ratchet wheel, a grooved pulley, a rack, a belt, etc. When observed in the left - right direction, in order for the first driving - force receiving member 3 not to interfere with the movement of the first unit 100 / the cover 14 / the housing 1 within the reference plane, the outer engaging portion 31 and the inner engaging portion 32 are movably connected. In this way, the inner engaging portion 32 can move along with the movement (translation) of the first unit 100 / the cover 14 / the housing 1 within the reference plane, while the outer engaging portion 31 remains stationary relative to the drive end - cover 300.

[0269] In some embodiments, the outer engaging portion 31 and the inner engaging portion 32 are connected by a cross - chute method, or the outer engaging portion 31 and the inner engaging portion 32 are connected by a combination formed by at least one sphere and a rod. At least one sphere is combined with the outer engaging portion 31 or the inner engaging portion 32, as long as the outer engaging portion 31 and the inner engaging portion 32 can move relative to each other and transfer the driving force.

[0270] As described above, when observed in the left - right direction, the first unit 100 / cover 14 / housing 1 translates in the front - back direction within the reference plane to bring the developing roller 11 and the photosensitive drum 21 closer to or farther from each other, which is achievable. When observed in the left - right direction, the first unit 100 / cover 14 / housing 1 can also translate in the up - down direction within the reference plane to bring the developing roller 11 and the photosensitive drum 21 closer to or farther from each other. Further, it is also achievable that when observed in the left - right direction, the first unit 100 / cover 14 / housing 1 translates in a direction inclined with respect to the front - back direction and the up - down direction within the reference plane to bring the developing roller 11 and the photosensitive drum 21 closer to or farther from each other. For example, guiding grooves are provided in the end caps 300 / 400, and guiding protrusions that can be guided by the guiding grooves are provided in the first unit 100 / cover 14 / housing 1. The first unit 100 / cover 14 / housing 1 moves towards the rear - upper or rear - lower direction within the reference plane to separate the developing roller 11 and the photosensitive drum 21 from each other. Correspondingly, the first unit 100 / cover 14 / housing 1 moves towards the front - lower or front - upper direction within the reference plane to bring the developing roller 11 and the photosensitive drum 21 closer to each other.

[0271] Figure 31D FIG. 4 is a side view of the processing cartridge according to the twelfth embodiment of the present invention when observed from top to bottom in the up - down direction; Figure 31E FIG. 6 is a simplified schematic diagram after the developing roller and the photosensitive drum are separated from each other in one of the embodiments of the present invention.

[0272] Based on the above inventive concept, the reference plane can also be a plane including the front - back direction and the left - right direction. The first unit 100 / cover 14 / housing 1 rotates in the Q direction around the pivot point P within this plane Figure 31D to separate the developing roller 11 and the photosensitive drum 21 from each other.

[0273] In one embodiment, the pivot point P is the contact point formed by the circumferential surfaces of the developing roller 11 and the photosensitive drum 21 in contact. As shown in FIGS. 18 and 19, the pivot point P is located to the right of the developing roller 11 / photosensitive drum 21, and the right separation contact mechanism 5R can be omitted. When the separation contact mechanism 5 (left separation contact mechanism 5L) on the left side of the processing cartridge receives a separation force, the developing roller 11 and the photosensitive drum 21 will form the state shown in FIG. 20. An angle α less than 90° will be formed between the circumferential surface of the developing roller 11 and the circumferential surface of the photosensitive drum 21. Along the front - back direction, the distance between the circumferential surface of the developing roller 11 and the circumferential surface of the photosensitive drum 21 gradually decreases from left to right. When the separation contact mechanism 5 receives a restoring force, the first unit 100 / cover 14 / housing 1 rotates around the pivot point P within the plane in the Figure 31D and Figure 31E shown direction to bring the developing roller 11 and the photosensitive drum 21 closer to each other. When the separation contact mechanism 5 receives a separation force, the first unit 100 / cover 14 / housing 1 rotates around the pivot point P within the plane in the Figure 31E shown state, and an angle α less than 90° will be formed between the circumferential surface of the developing roller 11 and the circumferential surface of the photosensitive drum 21. Along the front - back direction, the distance between the circumferential surface of the developing roller 11 and the circumferential surface of the photosensitive drum 21 gradually decreases from left to right; when the separation contact mechanism 5 receives a restoring force, the first unit 100 / cover 14 / housing 1 rotates around the pivot point P within the plane in the Figure 31DRotate in the opposite direction of the Q direction, so as to realize the mutual approach of the developing roller 11 and the photosensitive drum 21.

[0274] In an embodiment, the right separation contact mechanism 5R can still be retained, but when the separation force received by the left separation contact mechanism 5L is greater than the separation force received by the right separation contact mechanism 5R, the developing roller 11 and the photosensitive drum 21 can still form Figure 31E The state shown. For example, in the processing cartridge C, force attenuation mechanisms such as a reverse pushing device and a separation force absorbing member are provided, and the force attenuation mechanism is used to attenuate the separation force applied by the separation control mechanism 93 to the right separation contact mechanism 5R.

[0275] It should be understood that the position of the fulcrum P should not be limited. In addition to being formed by the contact between the circumferential surface of the developing roller 11 and the circumferential surface of the photosensitive drum 21, the fulcrum P can also be formed by the contact between the housing 1 and the first end cover 300 / second end cover 400, or by the contact between the protective cover 14 and the first end cover 300 / second unit housing 2, or by the contact between the conductive bracket and the second end cover 400 / second unit housing 2, or by the contact between the conductive bracket and the power output member in the imaging device, etc. When the fulcrum P is not formed by the contact between the circumferential surface of the developing roller 11 and the circumferential surface of the photosensitive drum 21, in Figure 31E The state shown, in the left-right direction, the circumferential surface of the developing roller 11 may not be in contact with the circumferential surface of the photosensitive drum; along the left-right direction, the fulcrum P can be formed on the right side of the processing cartridge or on the left side of the processing cartridge.

[0276] In the way of realizing the mutual approach and mutual separation of the developing roller 11 and the photosensitive drum 21 described in this embodiment, the movement form of the first unit 100 / protective cover 14 / housing 1 is still translational. Although the first unit 100 / protective cover 14 / housing 1 will rotate around the fulcrum P, compared with the first unit 100 / protective cover 14 / housing 1 rotating around its own rotation axis passing through the housing 1 in the left-right direction, the first unit 100 / protective cover 14 / housing 1 itself will not rotate, but translate in the reference plane including the front-back direction and the left-right direction. It can be seen that the movement trajectory of the first unit 100 / protective cover 14 / housing 1 is always within the reference plane, making its movement process simple.

[0277] [Embodiment Thirteen]

[0278] Figure 32 is an exploded view of the processing cartridge according to Embodiment Thirteen of the present invention, in which the separation contact mechanism and the driving end cover are both separated from the processing cartridge housing; Figure 33A is a side view of the processing cartridge according to Embodiment Thirteen of the present invention, observed from left to right in the left-right direction when the separation contact mechanism is in the retracted state; Figure 33BThis is a side view of the separation and contact mechanism in the processing cartridge according to the thirteenth embodiment of the present invention when it is in the extended state, observed from left to right in the left-right direction.

[0279] Different from the twelfth embodiment, in this embodiment, the locking portion 53 is provided on the force-receiving member 5b / acting portion 51, and the locked portion is also provided on the end caps 300 / 400. The same components as those in the twelfth embodiment will not be described herein again.

[0280] Before the top plate 94 presses down the pressing member 5a, the locking portion 53 will be in the retracted state along with the force-receiving member 5b / acting portion 51. As Figure 33A shown, the locking portion 53 is located above the locked portion. As the top plate 94 presses down the pressing member 5a, the force-receiving member 5b / acting portion 51 is pressed downward by the transmission member 5a3 in the pressing member 5a, and the first elastic force applying member 59a undergoes elastic deformation. The force-receiving member 5b / acting portion 51 gradually enters the separation control mechanism 93, and the first protrusion 531 and the second protrusion 23 are engaged in the front-rear direction so that the locking portion 53 and the locked portion are locked to each other.

[0281] When the imaging holding member C3 is not provided in the processing cartridge C, before the locking portion 53 and the locked portion are locked to each other, the first unit 100 and the second unit 200 are only combined through the end caps 300 / 400 and can move relative to each other. This structure is beneficial for the processing cartridge C to avoid interference during installation and disassembly. However, to prevent unnecessary collisions between the developing roller 11 and the photosensitive drum 21, preferably, the processing cartridge C is still provided with the imaging holding member C3.

[0282] Preferably, the locking portion 53 and the locked portion in this embodiment also have the locking position LP and the abutting position AP described in the twelfth embodiment, and the beneficial effects can be seen from the above description.

[0283] [Embodiment Fourteen]

[0284] Figure 34 This is an exploded view of the separation and contact mechanism at the driving end of the processing cartridge and the driving end cap separated from the processing cartridge housing according to the fourteenth embodiment of the present invention.

[0285] In this embodiment, the structures of the locking portion 53 and the locked portion are mainly replaced, and the structure of the separation and contact mechanism 5 is not limited herein.

[0286] As Figure 34As shown, one end of the locking portion 53 forms a first protrusion / locking force-receiving portion 531. The processing cartridge C further includes a second elastic force applying member 59b coupled to the locking portion 53. Similarly, the second elastic force applying member 59b can be at least one of a compression spring, rubber, a tension spring, etc., for forcing the locking portion 53 to move in the left-right direction. Specifically, the second elastic force applying member 59b forces the locking portion 53 to move in a direction away from or close to the housing 1. It is achievable that the locking portion 53 can be mounted on the cover 14 or the housing 1.

[0287] The locked portion is disposed on the end caps 300 / 400. As shown in the figure, a connecting body 22 in the locked portion is connected to the end cap main body 301, and a second protrusion / locked force-receiving portion 23 is disposed on the connecting body 22. In this embodiment, the locked portion is integrally and fixedly disposed on the end cap main body 301. Thus, the locked portion can be integrally formed with the end cap main body 301, and a locking space 220 is formed between the second protrusion 23 and the end cap main body 301.

[0288] During the operation / imaging of the processing cartridge C, the locking portion 53 reaches the locking space 220 under the action of the second elastic force applying member 59b. At the same time, the locking portion 53 also abuts against the second protrusion 23 to be locked. When the separation contact mechanism 5 receives a separation force, the first unit 100 / cover 14 / housing 1 moves relative to the second unit 200 in the reference plane, the second elastic force applying member 59b undergoes elastic deformation, and the locking portion 53 / first protrusion 531 moves in a direction close to the housing 1 until it crosses over the second protrusion 23. Subsequently, the second elastic force applying member 59b releases the elastic force, and the locking portion 53 / first protrusion 531 reaches the outside of the locking space 220 and abuts against the second protrusion 23 again, and the developing roller 11 and the photosensitive drum 21 can be held in a mutually separated state with a separation gap g.

[0289] When the separation contact mechanism 5 receives a restoring force, the locking portion 53 / first protrusion 531 crosses over the second protrusion 23 again and enters the locking space 220. During this process, the second elastic force applying member 59b undergoes elastic deformation and releases the elastic force again, and the locking portion 53 / first protrusion 531 is held in the locking space 220.

[0290] In the solution where the first unit 100 and the second unit 200 are arranged to translate in the front-rear direction, when the locking portion 53 / first protrusion 531 has not crossed over the second protrusion 23, the developing roller 11 and the photosensitive drum 21 reach a mutually separated state with a separation gap g. At this time, the locking portion 53 / first protrusion 531 is still located within the locking space 220.

[0291] In addition, to prevent the first driving force receiving member 3 from interfering with the movement of the first unit 100 / cover 14 / housing 1, a second solution is provided in this embodiment.

[0292] As Figure 34 shown, the first driving force receiving member 3 also passes through the third exposed hole 143 provided in the cover 14. Similar to the above embodiment, the outer engaging portion 31 and the inner engaging portion 32 in the first driving force receiving member 3 are movably connected. Further, the third exposed hole 143 is provided in an elliptical shape, so as to more effectively prevent the first driving force receiving member 3 from interfering with the movement of the first unit 100 / cover 14 / housing 1; preferably, the major axis of the elliptical third exposed hole 143 extends along the moving direction of the first unit 100 / cover 14 / housing 1.

[0293] Based on the structures of the locking portion 53 and the locked portion provided in this embodiment, the moving manner of the first unit 100 / cover 14 / housing 1 can also be rotation, that is, when the separation control mechanism 93 applies a separation force or a restoring force to the separation contact mechanism 5, the first unit 100 / cover 14 / housing 1 rotates relative to the second unit 200, and the conversion between the locking of the locking portion 53 and the locked portion and the unlocking can also be achieved.

[0294] The locking portion 53 in this embodiment is provided to be movable relative to the first unit 100 / cover 14 / housing 1. Specifically, the locking portion 53 is provided to perform a telescopic movement in the left-right direction relative to the first unit 100 / cover 14 / housing 1. Compared with the structure provided as an elastic arm, the locking portion 53 can obtain a more stable abutting effect.

[0295] Preferably, the locking portion 53 and the locked portion in this embodiment also have the locking position LP and the abutting position AP described in Embodiment Twelve, and the beneficial effects can be seen in the above description.

[0296] [Embodiment Fifteen]

[0297] Figure 35 is an exploded view after the separation contact mechanism and the drive end cover at the drive end of the processing cartridge according to Embodiment Fifteen of the present invention are both separated from the processing cartridge housing.

[0298] Different from Embodiment Fourteen, the locking portion 53 in this embodiment is provided to be unable to undergo elastic deformation, but the locked portion is provided to be elastically deformable. As Figure 35 shown, the locking portion 53 is fixedly provided on the cover 14 or the housing 1, the first protrusion 531 is provided on the locking portion 53, the locked portion is provided in the form of a cantilever on the end cover main body 301, that is, one end of the connecting body 22 in the locked portion is connected to the end cover main body 301, the second protrusion 23 is provided at the other end of the connecting body 22, and a locking space 220 is still formed between the second protrusion 23 and the end cover main body 301. Preferably, the locking portion 53 and the locked portion in this embodiment also have the locking position LP and the abutting position AP described in Embodiment Twelve, and the beneficial effects can be seen in the above description.

[0299] Optionally, the positions of the locking part 53 and the locked part in this embodiment can also be interchanged, which gives the locking part 53 and the locked part greater design freedom. As a result, the overall structural rationality of the processing cartridge C can be improved. However, whether the cantilever-shaped locked part is provided on the end cap main body 301 or on the first unit 100 / cap 14 / housing 1, during the process of mutual locking and unlocking between the locking part 53 and the locked part, the locked part can move in the left-right direction of the processing cartridge. Compared with the front-back direction and the up-down direction, the size of the processing cartridge C in the left-right direction is the largest. Therefore, there will be more design margins in the left-right direction of the processing cartridge C to ensure that the locked part has sufficient deformation in the left-right direction.

[0300] [Embodiment XVI]

[0301] Figure 36 is an exploded view of the first driving force receiving member, the cap, and the driving end cap of the processing cartridge according to Embodiment XVI of the present invention after being separated from each other; Figure 37A is a side view of the processing cartridge according to Embodiment XVI of the present invention when the developing roller and the photosensitive drum are approaching each other, observed from left to right in the left-right direction; Figure 37B is a side view of the processing cartridge according to Embodiment XVI of the present invention when the developing roller and the photosensitive drum are moving away from each other, observed from left to right in the left-right direction.

[0302] In this embodiment, the structures of the locking part 53 and the locked part are mainly replaced, and the structure of the separation contact mechanism 5 is not limited herein.

[0303] As Figure 36 shown, in the left-right direction, the first driving force receiving member 3 first passes through the third exposed hole 143 on the cap 14, and then passes through the second exposed hole 305 on the end cap 300. The cap 14 is further provided with a neck 144 disposed around the third exposed hole 143, and the neck 144 passes through the second exposed hole 305.

[0304] In this embodiment, the locking part 53 and the locked part are arranged such that one of them rotates relative to the first unit 100 and the second unit 200, and the locking part 53 and the locked part are switched between the mutually locked state and the unlocked state, and the locking part 53 or the locked part is arranged along the circumferential direction of the rotation of the first unit 100 or the circumferential direction of the rotation of the second unit 200. This design does not require additional space in the processing cartridge C, nor does it require additional components to be provided in the processing cartridge C, thereby simplifying the structure of the processing cartridge C.

[0305] The locking part 53 includes a first clamping part 53a and a second clamping part 53b which are arranged adjacent to the neck part 144. Among them, the combination of the part to be locked and the first clamping part 53a keeps the developing roller 11 and the photosensitive drum 21 in a state of being close to each other, and the combination of the part to be locked and the second clamping part 53b keeps the developing roller 11 and the photosensitive drum 21 in a state of being far from each other.

[0306] In an embodiment, both the first clamping part 53a and the second clamping part 53b are arranged as clamping grooves. At this time, the locking part 53 further includes a first protrusion 531 located between the first clamping groove 53a and the second clamping groove 53b. The part to be locked includes a connecting body 22 connected to the end cap main body 301 and a second protrusion 23 arranged on the connecting body 22. Among them, the connecting body 22 is arranged on the end cap main body 301 in a cantilever form, and the locking part 53 is fixedly arranged on the neck part 144. Specifically, the connecting body 22 is arranged around the circumferential direction of the second exposure hole 305, and the locking part 53 is arranged along the circumferential direction of the neck part 144. Therefore, the part to be locked will be able to elastically deform relative to the end cap main body 301, and the locking part 53 is fixedly arranged relative to the first unit 100 / cap 14 / housing 1.

[0307] When the processing cartridge C works / forms an image, the second protrusion 23 enters the first clamping groove 53a. Therefore, the second protrusion 23 and the first protrusion 531 can abut against each other and be locked, and further, the locking of the locking part 53 and the part to be locked is realized, and the developing roller 11 and the photosensitive drum 21 can be kept in a state of being close to each other; when the separation control mechanism 93 applies a separation force to the separation contact mechanism 5, the first unit 100 / cap 14 / housing 1 rotates relative to the second unit 200 around a rotation axis (for example, the rotation axis L3 of the first driving force receiving member 3) in Figure 37A the direction shown in r2 in, as Figure 37B shown, the developing roller 11 and the photosensitive drum 21 are separated from each other to form a separation gap g. During this process, as the cap 14 rotates, the first protrusion 531 and the second protrusion 23 are pressed against each other, and the part to be locked elastically deforms until the second protrusion 23 passes over the first protrusion 531, or rather, until the first protrusion 531 passes over the second protrusion 23. Subsequently, the part to be locked is reset, the second protrusion 23 enters the second clamping groove 53b, and the developing roller 11 and the photosensitive drum 21 maintain the separation gap g through the second protrusion 23 and the first protrusion 531 abutting against each other again.

[0308] When the separation control mechanism 93 applies a restoring force to the separation contact mechanism 51, the first unit 100 / cap 14 / housing 1 rotates relative to the second unit 200 in the direction opposite to that shown by r2 about the rotation axis L3. The first protrusion 531 and the second protrusion 23 are pressed against each other again, and the locked portion is elastically deformed again until the first protrusion 531 passes over the second protrusion 23, or rather, until the second protrusion 23 passes over the first protrusion 531. Subsequently, the locked portion is reset, the second protrusion 23 enters the first card slot 53a, and the first protrusion 531 and the second protrusion 23 are locked again, and the developing roller 11 and the photosensitive drum 21 remain close to each other.

[0309] Based on the inventive concept of this embodiment, the locking portion 53 and the locked portion can also be arranged such that the locking portion 53 is elastically deformable while the locked portion is fixedly arranged, and the above locking and unlocking processes can also be achieved.

[0310] In another embodiment, one of the first engaging portion 53a and the second engaging portion 53b is provided as a card slot, and the other is provided as a protrusion / radial protrusion. That is, one of the first engaging portion 53a and the second engaging portion 53b is recessed radially inward from the outer circumferential surface of the neck 144 to form a card slot, and the other extends radially outward from the outer circumferential surface of the neck 144 to form a radial protrusion.

[0311] For example, when the first engaging portion 53a is provided as a radial protrusion and the second engaging portion 53b is provided as a card slot, during the operation / imaging of the processing cartridge C, along the rotation direction r2, the second protrusion 23 abuts against the downstream surface of the radial protrusion 53a, and the developing roller 11 and the photosensitive drum 21 remain close to each other. When the separation control mechanism 93 applies a separation force to the separation contact mechanism 5, the first unit 100 / cap 14 / housing 1 rotates in the direction shown by r2, and after the second protrusion 23 passes over the radial protrusion, it enters the card slot 53b. By the mutual abutment of the second protrusion 23 and the card slot 53b, the separation gap g is maintained between the developing roller 11 and the photosensitive drum 21.

[0312] When the separation control mechanism 93 applies a restoring force to the separation contact mechanism 51, the first unit 100 / cap 14 / housing 1 rotates in the direction opposite to that shown by r2, the second protrusion 23 passes over the radial protrusion 53a again, and returns to the state of abutting against the downstream surface of the radial protrusion 53a, and the locking portion 53 and the locked portion are locked again. It can be seen that in this manner, the radial protrusion can be regarded as the first protrusion 531.

[0313] When the first engaging portion 53a is provided as a card slot and the second engaging portion 53b is provided as a protrusion, the locking portion 53 and the locked portion still have the above-mentioned movement process, which will not be elaborated here.

[0314] Based on the inventive concept of this embodiment, in another implementation, the locking portion 53 includes a radially protruding portion formed by radially extending outward from the outer circumferential surface of the neck portion 144. Along the rotation direction r2, a downstream region and an upstream region adjacent to the radially protruding portion will respectively form a first locking portion 53a and a second locking portion 53b. In this way, only one radially protruding portion needs to be provided on the outer circumferential surface of the neck portion 144, and the structure of the locking portion 53 will become simpler.

[0315] Preferably, both the locking portion 53 and the locked portion can be modified based on the existing components in the processing cartridge C, and there is no need to additionally install components into the processing cartridge C, which is beneficial to reducing the number of components of the processing cartridge C and thus reducing the assembly difficulty of the processing cartridge C.

[0316] Preferably, the locking portion 53 and the locked portion in this embodiment also have the locking position LP and the abutting position AP described in Embodiment Twelve, and the beneficial effects can be seen in the above description. As Figure 37A shown, along the front-rear direction, the distance from the rotation axis L21 of the photosensitive drum to the imaging position DP is s1, the distance from the rotation axis L11 of the developing roller 11 to the imaging position DP is s2, and the distance from the locking position LP to the imaging position DP is s3. The s3 is smaller than any one of s1 and s2; as Figure 37B shown, along the front-rear direction, the distance from the rotation axis L21 of the photosensitive drum to the midpoint Cg is s4, the distance from the rotation axis L11 of the developing roller 11 to the midpoint Cg is s5, and the distance from the abutting position AP to the midpoint Cg is s6. The s6 is smaller than any one of s4 and s5.

[0317] [Embodiment Seventeen]

[0318] Figure 38 is an exploded schematic view after the first driving force receiving member, the cover, and the driving end cover of the processing cartridge according to Embodiment Seventeen of the present utility model are separated from each other; Figure 39A is a side view observed from left to right in the left-right direction when the developing roller and the photosensitive drum in the processing cartridge according to Embodiment Seventeen of the present utility model are close to each other; Figure 39B is a side view observed from left to right in the left-right direction when the developing roller and the photosensitive drum in the processing cartridge according to Embodiment Seventeen of the present utility model are far from each other.

[0319] Based on the inventive concept of Embodiment Sixteen, this embodiment describes the deformed structure of the locked portion. The locked portion in Embodiment Sixteen is provided as a cantilever so that its movement trajectory is an arc, and the movement trajectory of the locked portion in this embodiment is a straight line.

[0320] The locked portion in this embodiment is movably installed on the end cover main body 301, as Figure 38As shown, the end cap body 301 is provided with a limiting space 306 for accommodating the locked part. A third elastic force applying member 59c is installed in the limiting space 306 together with the locked part. The limiting space 306 communicates with the second exposed hole 305. The third elastic force applying member 59c is used to push the locked part towards the second exposed hole 305. At the same time, adjacent first clamping parts 53a and second clamping parts 53b are still provided on the circumference of the neck portion 144. Therefore, under the action of the third elastic force applying member 59c, the second protrusion 23 will enter the first clamping part 53a or the second clamping part 53b.

[0321] As Figure 39A shown, when the processing cartridge C is working / imaging, the locked part is located in the first clamping part 53a and is in a locked state by abutting against the first protrusion 531. The developing roller 11 and the photosensitive drum 21 are close to each other. When the separation control mechanism 93 applies a separation force to the separation contact mechanism 5, as Figure 39B shown, the first unit 100 / cap 14 / housing 1 rotates relative to the second unit 200 about the rotation axis L3. During the process of the second protrusion 23 passing over the first protrusion 531, the third elastic force applying member 59c undergoes elastic deformation. Subsequently, when the second protrusion 23 passes over the first protrusion 531, under the elastic force released by the third elastic force applying member 59c, the second protrusion 23 enters the second clamping part 53b. By the second protrusion 23 abutting against the first protrusion 531 again, the separation gap g between the developing roller 11 and the photosensitive drum 21 can be maintained.

[0322] Based on the inventive concept of this embodiment, the positions of the locking part 53 and the locked part can also be interchanged, and the above locking and unlocking processes can also be achieved. Moreover, under the action of the third elastic force applying member 59c, both the locking part and the locked part are not easily broken.

[0323] Preferably, the locking part 53 and the locked part in this embodiment also have the locking position LP and the abutting position AP described in Embodiment Twelve, and the beneficial effects can be seen from the above description.

[0324] [Embodiment Eighteen]

[0325] Figure 40 is an exploded view of some components in the processing cartridge according to Embodiment Eighteen of the present utility model; Figure 41 is a perspective view of the cap of the processing cartridge according to Embodiment Eighteen of the present utility model.

[0326] In this embodiment, the first unit 100 / cap 14 / housing 1 can still make the developing roller 11 and the photosensitive drum 21 approach or move away from each other by the above-mentioned translational or rotational (such as about the rotation axis L3) manner. Similar to Embodiment Twelve, the locking part 53 is also set to be cantilever-shaped, as Figure 40As shown, the locking portion 53 includes a locking base body 530 and a first protrusion 531 provided on the locking base body 530. The locking base body 530 can be integrally formed with the cover 14 / housing 1 or separately formed, as long as at least one of the locking portion 53 and the locked portion provided on the end cap 300 can achieve mutual locking and unlocking through elastic deformation.

[0327] Similar to the above embodiment, in this embodiment, the locked portion is provided on the end cap 300 / 400. The connecting body in the locked portion is connected to the end cap main body 301 or the second unit housing 2. The second protrusion 23 is provided as the locked force-receiving portion on the connecting body. In some embodiments, the locked force-receiving portion 23 can also be provided as a groove. At this time, the locked portion will only be provided with the locked force-receiving portion 23 formed as a groove; preferably, the processing cartridge C further includes the second elastic force applying member 59b. Similarly, the second elastic force applying member 59b can be at least one of a compression spring, rubber, a tension spring, etc., for forcing the locking portion 53 to move in the left-right direction away from or close to the housing 1; it should be noted that in the case of not providing the second elastic force applying member 59b, the locking portion 53 can also move in the direction away from or close to the housing 1 by using its own elasticity.

[0328] Furthermore, the locking portion 53 in this embodiment further includes a squeezed portion 532 provided on the locking base body 530. When the separation contact mechanism 5 receives a restoring force, the separation contact mechanism 5 squeezes the squeezed portion 532, so that the locking portion 53 obtains a larger elastic deformation amount, thereby ensuring that the first protrusion 531 can cross over the second protrusion 23, and the developing roller 11 and the photosensitive drum 21 return from being away from each other to and remain in a state of being close to each other; when the locked force-receiving portion 23 is provided as a groove, the first protrusion 531 crosses over the highest point in the left-right direction of the groove 23, thereby realizing the mutual locking and unlocking between the locking portion 53 and the locked portion.

[0329] In the case of not providing the squeezed portion 532, in order to make the locking portion 53 obtain a sufficient elastic deformation amount, the hardness of the locking portion 53 needs to be set to be small. However, in this case, the locking state between the locking portion 53 and the locked portion will become unstable. On the contrary, when the hardness of the locking portion 53 is set to be large, it will be difficult for the locking portion 53 to obtain a sufficient elastic deformation amount; however, when the squeezed portion 532 is provided, even if the hardness of the locking portion 53 increases, with the squeezing of the squeezed portion 532 by the separation contact mechanism 5, the locking portion 53 will be able to easily obtain a sufficient elastic deformation amount.

[0330] Similar to the above embodiment, the processing cartridge C further includes a support body 13 extending in the left-right direction on the processing cartridge housing or cover. By cooperating the support body 13 with the long hole / slot 55 on the separation contact mechanism 5, the separation contact mechanism 5 can move in the up-down direction and also rotate around the support body 13.

[0331] When the processing cartridge C works / forms an image, the photosensitive drum 21 contacts the developing roller 11, and the locking portion 53 and the locked portion are locked to each other in the front-back direction. Specifically, the second protrusion 23 is located behind the first protrusion 531, and the first protrusion 531 and the second protrusion 23 abut against each other and are locked. In some embodiments, the first unit 100 and the second unit 200 can also be held in a state where the developing roller 11 and the photosensitive drum 21 are close to each other through the imaging holding member C3. At this time, although the second protrusion 23 is located behind the first protrusion 531, they do not have to contact / abut against each other.

[0332] When the separation contact mechanism 5 / acting portion 51 receives a separation force, the separation contact mechanism 5 will rotate around the support column 13 along Figure 40 the direction shown by r7 in the figure. By providing a limiting member 145 on the protective cover 14 / housing 1 for abutting against the separation contact mechanism 5, the rotation of the separation contact mechanism 5 in the direction shown by r7 is suppressed, and thus the separation force is applied to the protective cover 14 / housing 1. The first unit 100 / protective cover 14 / housing 1 can realize the separation of the developing roller 11 and the photosensitive drum 21 by the above translational motion or rotation around the rotation axis. During this process, the first protrusion 531 and the second protrusion 23 are pressed against each other. The first protrusion 531 alone or the first protrusion 531 drives the locking base 530 to move towards the direction close to the housing 1, and the second elastic force applying member 59b undergoes elastic deformation. When the first protrusion 531 passes over the second protrusion 23, the second elastic force applying member 59b releases the elastic force, and the locking base 530 drives the first protrusion 531 to move away from the housing 1. Finally, the first protrusion 531 reaches the rear of the second protrusion 23, the imaging holding member C3 undergoes elastic deformation, and the first protrusion 531 and the second protrusion 23 abut against each other in the front-back direction, and the developing roller 11 and the photosensitive drum 21 are kept in a separated state.

[0333] On the contrary, when the separation contact mechanism 5 / acting portion 51 receives a restoring force, the separation contact mechanism 5 will rotate around the support column 13 along Figure 40It rotates in the direction opposite to the direction shown by r7 in the figure. At this time, the separation contact mechanism 5 will start to squeeze the squeezed part 532, and the locking base 530 moves in the direction close to the housing 1. The second elastic force applying member 59b is elastically deformed again. When the first protrusion 531 passes over the second protrusion 23, under the elastic force of the imaging holding member C3, the first unit 100 / cap 14 / housing 1 can make the developing roller 11 and the photosensitive drum 21 approach each other by the above-mentioned translational movement or rotation around the rotation axis. At the same time, the first protrusion 531 reaches in front of the second protrusion 23. The first unit 100 and the second unit 200 are in contact with each other in the front-rear direction through the first protrusion 531 and the second protrusion 23, so that the developing roller 11 and the photosensitive drum 21 are kept in a state of approaching each other. Or, the first unit 100 and the second unit 200 make the developing roller 11 and the photosensitive drum 21 kept in a state of approaching each other through the imaging holding member C3. Or the first protrusion 531 and the second protrusion 23 are in contact with each other in the front-rear direction and the imaging holding member C3 acts simultaneously.

[0334] In the above embodiment, the first protrusion 531 and the second protrusion 23 are arranged below the processing cartridge. In some embodiments, when the developing roller 11 and the photosensitive drum 21 approach each other, the first protrusion 531 and the second protrusion 23 are in a state of being in contact with each other in the front-rear direction. At this time, the first protrusion 531 is located behind the second protrusion 23. When the separation contact mechanism 5 / acting part 51 receives the separation force, as the first unit 100 / cap 14 / housing 1 rotates around the rotation axis or translates through the above-mentioned method, the first protrusion 531 passes over the second protrusion 23 and reaches in front of the second protrusion 23. At this time, the first protrusion 531 and the second protrusion 23 are locked to each other, and the developing roller 11 and the photosensitive drum 21 change from the state of approaching each other to the state of moving away from each other. Preferably, the first protrusion 531 and the second protrusion 23 are arranged above the processing cartridge.

[0335] [Embodiment XIX]

[0336] Figure 42 It is an exploded view of some components in the processing cartridge related to Embodiment XIX of the present invention.

[0337] In this embodiment, the separation contact mechanism 5 is simplified to the acting part 51. The structures of the locking part 53 and the locked part and the movement process of their mutual locking and unlocking are the same as those in Embodiment XVIII, and will not be described in detail in this embodiment. The structure and movement process of the acting part 51 will be mainly described below.

[0338] The acting part 51 is arranged to be rotatable around a predetermined rotation axis. Specifically, at least one of the end caps 300 / 400, the cap 14 and the housing 1 and the acting part 51 are rotatably installed through the shaft-hole fit, such as Figure 42As shown, the acting part 51 includes a rotating part 513, and a force receiving part 514 and a force transmitting part 515 connected to the rotating part 513.

[0339] Preferably, the acting part 51 is set as a gravity block. In this way, there is no need to separately provide a reset member in the processing cartridge C to force the acting part 51 to reset. When the separating force or restoring force applied to the acting part 51 is withdrawn, the acting part 51 can naturally droop under its own gravity.

[0340] Similar to the above embodiment, the locking part 53 can be installed on the housing 1 or the cover 14 as an independent component, or can be integrally formed with the housing 1 or the cover 14.

[0341] When the force receiving part 514 receives a separating force, the acting part 51 will rotate in the opposite direction of the direction shown by r5 in Figure 42 When the force transmitting part 515 abuts against the restricting member 145 in the housing 1 or the cover 14, the separating force will be directly or indirectly transmitted to the housing 1. Subsequently, the first unit 100 moves relative to the second unit 200 in a translational manner or rotates around a rotation axis (such as the rotation axis L3) to separate the developing roller 11 and the photosensitive drum 21 from each other. As described in Embodiment XVIII, the imaging holding member C3 undergoes elastic deformation, and the first protrusion 531 reaches behind the second protrusion 23, and the two abut against each other in the front-rear direction, and the developing roller 11 and the photosensitive drum 21 are held in a separated state.

[0342] When the force receiving part 514 receives a restoring force, the acting part 51 will rotate in the direction shown by r5 in Figure 42 At the same time, the acting part 51 presses the pressed part 532, so that the first protrusion 531 crosses over the second protrusion 23 again. Under the action of the imaging holding member C3, the first unit 100 moves relative to the second unit 200 in a translational manner or rotates around a rotation axis (such as the rotation axis L3) to bring the developing roller 11 and the photosensitive drum 21 closer to each other.

[0343] [Embodiment XX]

[0344] Figure 43 is an exploded schematic view of some components in the processing cartridge according to Embodiment XX of the present invention.

[0345] Based on the above embodiment, the internal structure of the processing cartridge C is further optimized in this embodiment. First, refer to Figure 40 , the processing cartridge C further includes a supply member driving member 1021 for driving the supply member and a developing roller driving member 111 for driving the developing roller 11. The supply member driving member 1021 and the developing roller driving member 111 are simultaneously combined with the inner engaging part 32 of the first driving force receiving member 3 to receive the driving force of the outer engaging part 31. Generally, both the supply member driving member 1021 and the developing roller driving member 111 are set as gears.

[0346] The processing cartridge C further includes a gear mounting plate 15 fixedly connected to the housing 1. The first driving force receiving member 3, the supply member driving member 1021, and the developing roller driving member 111 are all mounted on or pass through the gear mounting plate 15. The cover 14 is directly mounted on the housing 1, or the cover 14 is first fixedly connected to the gear mounting plate 15 and then fixedly connected to the housing 1 through the gear mounting plate 15.

[0347] As described above, the stirring member is used to stir the developer accommodated in the housing 1, prevent the developer from caking, and convey the developer toward the supply member 102. In practice, the processing cartridge C is installed in the imaging device in an inverted posture, that is, when the processing cartridge C is in the installed state, the developing roller 11 is located below the processing cartridge, and the cavity for accommodating the developer in the processing cartridge is located above the developing roller 11. In this state, the stirring member can also be omitted, and the developer can reach the surface of the supply member 102 under its own gravity. At the same time, the rotating supply member 102 can also play a certain stirring role.

[0348] As Figure 43 shown, the processing cartridge C involved in this embodiment does not need to be provided with a stirring member and a gear mounting plate 15. In this way, the first driving force receiving member 3, the supply member driving member 1021, and the developing roller driving member 111 can be directly mounted on the housing 1. When the housing 1 is sectioned along a plane perpendicular to the left-right direction, its cross-section can be referred to Figure 27 shown; in addition, the cover 14 is directly fixedly connected to the housing 1. It can be seen that the structure of the processing cartridge C can be simplified, the number of components is reduced, which is beneficial to reducing the material cost and assembly cost of the processing cartridge C.

[0349] [Embodiment XXI]

[0350] Figure 44 is an exploded view of some components in the processing cartridge according to Embodiment XXI of the present invention.

[0351] Different from Embodiment XXI, a stirring member 103 is provided in the processing cartridge C involved in this embodiment. As Figure 44 shown, the stirring member 103 is coaxially arranged with the first driving force receiving member 3. In this way, there is no need to provide a component for transmitting the driving force between the stirring member 103 and the first driving force receiving member 3 in the processing cartridge C, which can also simplify the structure of the processing cartridge C and reduce the number of components of the processing cartridge C. Preferably, the stirring member 103 directly receives the driving force from the first driving force receiving member 3.

[0352] Furthermore, the stirring member 103 is at least coaxially arranged with the inner engaging portion 32. During the translation of the foregoing first unit 100 / cover 14 / housing 1, even if the outer engaging portion 31 moves, the stirring member 103 can still receive the driving force of the inner engaging portion 32 and rotate.

[0353] [Example Twenty-Two]

[0354] As [[ID= shown, the processing cartridge of the embodiment includes a photosensitive unit A10, a developing unit A20, and a separating mechanism A30. Among them, the photosensitive unit A10 includes a first housing A11 and a photosensitive drum A12. The first housing A11 is provided with a first end cap A13a and a second end cap A13b at both ends in the length direction X of the processing cartridge (the axial direction of the photosensitive drum A12). Both the first end cap A13a and the second end cap A13b are fixedly connected to the first housing A11, for example, by a connecting member or in an integrally formed manner. The photosensitive drum A12 is provided with a first rotational driving force receiving member A121 at the end of the first end cap A13a (the driving end of the processing cartridge). The first rotational driving force receiving member A121 can receive a first rotational driving force from the main assembly to drive the photosensitive drum A12 to rotate. The developing unit A20 includes a second housing A21, a developing roller A22, and a second rotational driving force receiving member A23. Among them, a developer storage bin is provided inside the second housing A21, and the developing roller A22 is directly or indirectly supported on the second housing A21; the second rotational driving force receiving member A23 is also provided at the driving end of the processing cartridge, and can receive a second rotational driving force from the main assembly and drive the developing roller A22 to rotate through a transmission mechanism (such as a gear transmission mechanism).

[0355] The two ends of the developing unit A20 in the X direction are rotatably connected to the first end cap A13a and the second end cap A13b, so that it can rotate relative to the photosensitive unit A10. Among them, the rotation axis of the developing unit A20 coincides with the rotation axis of the second rotational driving force receiving member A23. When the developing unit A20 rotates in different directions relative to the photosensitive unit A10, the developing unit A20 can switch positions between the contact position where the developing roller A22 contacts the photosensitive drum A12 and the separation position where the developing roller A22 is separated from the photosensitive drum A12.

[0356] The rotation of the developing unit A20 between the contact position and the separation position is realized by the separating mechanism A30. Among them, the separating mechanism A30 is provided between the developing unit A20 and the first end cap A13a and / or between the developing unit A20 and the second end cap A13b. Preferably, separating mechanisms A30 are provided between the developing unit A20 and both the first end cap A13a and the second end cap A13b. Hereinafter, the separating mechanism A30 between the developing unit A20 and the first end cap A13a will be taken as an example for illustration.

[0357] As ​As shown, the separation mechanism A30 includes a holding member A31 and a moving member A32. Among them, the holding member A31 is rotatably connected to the developing unit A20; the moving member A32 is movably arranged between the first end cap A13a and the developing unit A20 and performs a translational motion relative to the first end cap A13a. When the moving member A32 receives a force from the main assembly and translates, it can drive the holding member A31 to rotate, so that the holding member A31 cooperates with different parts of the first end cap A13a to change the position of the developing unit A20 relative to the photosensitive unit A10.

[0358] Specifically, the moving member A32 can translate in a first direction and a second direction. The first direction is the height direction Z of the processing cartridge or a direction inclined relative to the height direction Z, and the second direction is the width direction Y of the processing cartridge or a direction inclined relative to the width direction Y; among them, when the moving member A32 translates in the second direction, it can drive the holding member A31 to rotate.

[0359] The holding member A31 has an abutting portion A311, a pushed portion A312, and a pivot hole A313. Among them, the pivot hole A313 forms a shaft-hole fit with a rotating shaft A24 provided at the end of the developing unit A20. The abutting portion A311 can cooperate with different parts of the first end cap A13a to hold the developing unit A20 at a separation position or a contact position; the pushed portion A312 can be pushed by the moving member A32 to change the cooperating portion between the abutting portion A311 and the first end cap A13a.

[0360] In the embodiment, as ​ shown, the first end cap A13a may be provided with an abutted portion A131 and an avoidance portion A132. The abutted portion A131 may be a protruding portion protruding radially toward the developing unit A20 on the photosensitive drum A12, and the avoidance portion A132 may be a groove provided adjacent to the abutted portion A131. Among them, when the abutting portion A311 contacts the abutted portion A131, the developing unit A20 is located at a separation position where the developing roller A22 is separated from the photosensitive drum A12; when the abutting portion A311 moves away from the abutted portion A131 and enters the avoidance portion A132, the developing unit A20 is located at a contact position where the developing roller A22 contacts the photosensitive drum A12.

[0361] The moving member A32 is provided with a first force receiving portion A322, a second force receiving portion A321, a guiding projection A323, and a pushing portion A324. The first force receiving portion A322 is located at the upper end of the moving member A32 in the height direction Z of the processing cartridge, and the second force receiving portion A321 is located at the lower end of the moving member A32 in the height direction Z. Among them, the moving member A32 has an integrally formed structure as a whole, but is not limited thereto. As a variation, the first force receiving portion A322 and / or the second force receiving portion A321 in the moving member A32 can be separately manufactured and assembled and connected to the main body portion of the moving member A32.

[0362] As ​ shown, the first end cap A13a is provided with a guiding groove A133, and the guiding projection A323 is movably arranged in the guiding groove A133. The guiding groove A133 includes a first guiding groove A1331 and a second guiding groove A1332. The first guiding groove A1331 is used to guide the moving member A32 to move in a first direction (such as the height direction Z of the processing cartridge), and the second guiding groove A1312 is used to guide the moving member A32 to move in a second direction (such as the width direction Y of the processing cartridge). Preferably, the guiding groove A133 is provided with a guiding inclined surface A1333, and the guiding inclined surface A1333 is connected to the first guiding groove A1331 and the second guiding groove A1332 to facilitate the guiding projection A323 to enter the first guiding groove A1331 from the second guiding groove A1332.

[0363] Furthermore, as ​ shown, the separating mechanism A30 further includes a tension spring A33 as an example of an elastic stretching member. The two ends of the tension spring A33 are respectively connected to the holding member A31 and the moving member A32. The tension spring A33 can apply a force to the moving member A32 in the direction towards the first force receiving portion A322, and apply a force to the holding member A31 in the direction towards the second force receiving portion A321. Specifically, the holding member A31 is provided with a first connecting portion A314, and the moving member A32 is provided with a second connecting portion A325. The two ends of the tension spring A33 are respectively connected to the first connecting portion A314 and the second connecting portion A325; among them, the first connecting portion A314 is arranged between the abutting portion A311 and the pivot hole A313, and the second connecting portion A325 is located between the first connecting portion A314 and the second force receiving portion A321 in the height direction Z.

[0364] When the processing cartridge is not installed in the imaging device, under the pulling force of the tension spring A33, the first force receiving portion A322 of the moving member A32 protrudes above the first end cap A13a, and the guiding protrusion A323 abuts against the top end of the first guiding groove A1331 to position the moving member A32 in the height direction Z. In addition, when the processing cartridge is not installed in the imaging device, the developing unit A20 is usually located at a position where the developing roller A22 is separated from the photosensitive drum A12. At this time, the abutting portion A311 abuts against the portion A131 to be abutted on the first end cap A13a.

[0365] The main assembly of the imaging device is provided with a pressing member (not shown) and a separation control member A100. The first force receiving portion A322 can receive a first acting force from the pressing member to translate the moving member A32 in the first direction, and the second force receiving portion A321 can receive a second acting force from the separation control member A100 to translate the moving member A32 in the second direction. ​ and ​ As shown in FIGS. and, after the processing cartridge is installed in the imaging device, the pressing member on the main assembly can press down the first force receiving portion A322, so that the moving member A32 overcomes the pulling force of the tension spring A33 and translates downward along the Z1 direction toward the processing cartridge. The second force receiving portion A321 extends out from the lower part of the processing cartridge and enters the engaging groove A101 of the separation control member A100. The engaging groove A101 has an inclined side wall A101a.

[0366] When the separation control member A100 pushes the moving member A32 to translate in the Y1 direction, the pushing portion A324 of the moving member A32 applies an acting force to the portion A312 to be pushed of the holding member A31. The holding member A31 will rotate a predetermined angle along the AR1 direction, so that the abutting portion A311 moves away from the portion A131 to be abutted and enters the avoiding portion A132, allowing the developing unit A20 to rotate to a contact position where the developing roller A22 contacts the photosensitive drum A12.

[0367] Specifically, an elastic member (such as a tension spring) can be provided between the developing unit A20 and the second end cap A13b or the first end cap A13a. When the abutting portion A311 enters the avoiding portion A132, the elastic member can apply an acting force to the developing unit A20 to make the developing unit A20 rotate to a contact position where the developing roller A22 contacts the photosensitive drum A12. The setting of this elastic member can refer to the prior art and will not be elaborated here.

[0368] When the separation control member A100 pushes the moving member A32 to translate in the Y2 direction, the moving member A32 applies a force to the holding member A31 through the tension spring A33, causing the holding member A31 to rotate in the AR2 direction opposite to the AR1 direction. The abutting portion A311 moves from the avoiding portion A132 to contact the abutted portion A131, and the abutted portion A131 applies a reaction force to the abutting portion A311, causing the developing unit A20 to rotate to the separation position where the developing roller A22 is separated from the photosensitive drum A12.

[0369] As ​ shown, when the pressing member on the main assembly moves away from the first force receiving portion A322, the moving member A32 is pulled by the tension spring A33 and translated upward toward the processing cartridge. The second force receiving portion A321 moves out of the engaging groove A101 of the separation control member A100, and the guiding protrusion A323 enters the first guiding groove A1331 along the guiding inclined surface A1333, thereby causing the moving member A32 to return to the initial position as ​ shown, and the processing cartridge can be smoothly removed from the main assembly.

[0370] The main assembly of the imaging device is further provided with an elastic support mechanism (not shown) for supporting the separation control member A100 in the height direction Z, so that the separation control member A100 can elastically deflect in the height direction Z of the processing cartridge to reduce the impact when the second force receiving portion A321 enters the engaging groove A101.

[0371] When the moving member A32 moves in the width direction Y relative to the first end cap A13a to switch the separation / contact position of the developing unit A20, the second force receiving portion A321 does not move in the height direction Z and always remains in the engaging groove A101 of the separation control member A100, which can ensure the effectiveness and stability of the separation / contact control action of the separation mechanism A30.

[0372] In contrast, if the moving member A32 is arranged to rotate relative to the first end cap A13a when switching the separation / contact position of the developing unit A20, then during this process, the second force receiving portion A321 will move relative to the first end cap A13a in the height direction Z, and the second force receiving portion A321 may come out of the engaging groove A101 when abutting against the inclined side wall A101a, resulting in the separation control member A100 being unable to continue to push / pull the second force receiving portion A321, affecting the effectiveness and stability of the separation / contact control action of the separation mechanism A30.

[0373] In the embodiment of the present invention, as ​As shown, a substantially L-shaped handle portion A25a is provided on the second housing A21 of the developing unit A20; the handle portion A25a is arranged parallel to the length direction of the photosensitive drum A12, and reinforcing ribs A251a may be connected to both ends thereof. As a variation, as ​ shown, a handle portion A25b is provided on the second housing A21 of the developing unit A20; the handle portion A25b is perpendicular to the length direction of the photosensitive drum A12, and reinforcing ribs A251b may be connected to both ends thereof. Among them, both the handle portion A25a and the handle portion A25b are in a plate-like structure, and no cavity for accommodating the developer is formed inside.

[0374] [Example Twenty-Three]

[0375] As ​ shown, the processing cartridge B100 includes a photosensitive drum B112, a developing roller B122, a first frame B111 that rotatably supports the photosensitive drum B112, and a second frame B121 that rotatably supports the developing roller B122.

[0376] The rotation axis B113 of the photosensitive drum B112 extends along the width direction B02 of the processing cartridge B100, and the rotation axis B123 of the developing roller B122 extends along the width direction B02 of the processing cartridge B100.

[0377] The second frame B121 is movably mounted on the first frame B111 and can move between a first position B101 where the developing roller B122 contacts the photosensitive drum B112 and a second position B102 where the developing roller is separated from the photosensitive drum. Along the height direction B03 of the processing cartridge B100, when the second frame B121 is in the first position B101, the rotation axis B113 of the photosensitive drum B112 is parallel to the rotation axis B123 of the developing roller B122 and the rotation axis B123 of the developing roller B122 is not higher than the rotation axis B113 of the photosensitive drum B112; preferably, the rotation axis B113 of the photosensitive drum B112 is parallel and at the same height as the rotation axis B123 of the developing roller B122.

[0378] A thrust receiving portion B125 for receiving a thrust B104 that pushes the second frame B121 from the first position B101 to the second position B102 is provided on the lower side of the second frame B121.

[0379] It can be seen that along the height direction B03 of the processing cartridge B100, when the second frame B121 is in the first position B101, the rotation axis B113 of the photosensitive drum B112 is parallel to the rotation axis B123 of the developing roller B122 and the rotation axis B123 of the developing roller B122 is not higher than the rotation axis B113 of the photosensitive drum B112. The developing chamber B124 has a larger capacity and can store more toner. Preferably, when viewed along the axial direction of the photosensitive drum B112, the contact point B106 between the developing roller B122 and the photosensitive drum B112 is located in the plane B107 where the rotation axes of the developing roller B122 and the photosensitive drum B112 are located, that is, the contact point B106 is at the same height as the rotation axes of the developing roller B122 and the photosensitive drum B112. The developing roller B122 presses the photosensitive drum B112 from the front, which is beneficial to improving the service life of the surface coating of the photosensitive drum B112.

[0380] Preferably, the pivot axis B108 around which the second frame B121 swings relative to the first frame B111 extends along the width direction B02 of the processing cartridge B100.

[0381] The processing cartridge B100 includes a drum cartridge B110 and a developing cartridge B120. The first frame B111 is part of the drum cartridge B110, and the second frame B121 is part of the developing cartridge B120.

[0382] Along the width direction B02, a through hole B116 extending along the width direction B02 is provided at the first end of the first frame B111, and a column B117 extending along the width direction B02 is provided at the second end. Preferably, the through hole B116 is formed on the end cap B118 at the first end of the first frame B111, and the column B117 is formed on the end cap B119 at the second end of the first frame B111. The end caps B118 and B119 can be relatively fixed to the main body B1111 of the first frame B111 by means of assembly, welding or bonding, or can be integrally formed with the main body B1111.

[0383] Along the width direction B02, a cylindrical portion B126 for cooperating with the through hole B116 is provided at the first end of the second frame B121, and a cylinder B127 for cooperating with the column B117 is provided at the second end of the second frame B121.

[0384] A pressing portion B105 for applying a thrust B104 to the thrust receiving portion B125 is provided on an electrophotographic apparatus (not shown).

[0385] After the thrust B104 is withdrawn, the second frame B121 is controlled to approach the first frame B111 by a return spring serving as a reset member between the drum cartridge B110 and the developing cartridge B120, so that the photosensitive drum B112 and the developing roller B122 remain in contact. The material, shape and installation method of the reset member belong to the prior art and will not be elaborated here.

[0386] The second frame B121 is not limited to rotating about the pivot B108.

[0387] As an improvement, the plane swept by the second frame when moving between the first position and the second position is parallel to the direction of the thrust. This effectively reduces the relative sliding between the pressing part B105 and the thrust receiving part B125 in the height direction B03, and reduces friction.

[0388] As an improvement, the second frame B121 swings horizontally or translates horizontally between the first position and the second position. This can effectively reduce the relative sliding between the pressing part B105 and the thrust receiving part B125 in the height direction B03, and reduce friction.

[0389] [Embodiment Twenty-Four]

[0390] As shown in ​ , the processing cartridge B200 includes a photosensitive drum B212, a developing roller B222, a first frame B211 that rotatably supports the photosensitive drum B212, and a second frame B221 that rotatably supports the developing roller B222.

[0391] The rotation axis B213 of the photosensitive drum B212 extends along the width direction B02 of the processing cartridge B200.

[0392] The rotation axis B223 of the developing roller B222 extends along the width direction B02 of the processing cartridge B200.

[0393] The second frame B221 is movably mounted on the first frame B211 and can swing horizontally between a first position B201 where the developing roller B222 is in contact with the photosensitive drum B212 and a second position B202 where the developing roller B222 is separated from the photosensitive drum B212.

[0394] A thrust receiving part B225 for receiving a thrust B104 that pushes the second frame B221 from the first position B201 to the second position B202 is provided on the lower side of the second frame B221.

[0395] Thus, the thrust B104 does not need to overcome the gravity of the second frame B221 and its components thereon. A smaller thrust can be used to separate the developing roller B222 from the photosensitive drum B212. The thrust received by the thrust receiving part B225 is reduced, and the friction force received by the thrust receiving part B225 is reduced, which is beneficial to extending the life of the processing cartridge B200. It effectively reduces the relative sliding between the pressing part B105 and the thrust receiving part B225 in the height direction B03, reduces friction, and extends the life of the processing cartridge B200.

[0396] In other embodiments, the second frame B221 is not limited to horizontally swinging between the first position B201 and the second position B202. By changing the guiding trend of the first through slot B216, the shape and spatial orientation of the swinging surface of the second frame B221 can be changed. For example, the swinging plane of the second frame B221 forms an angle with the horizontal plane. Another example is that the swinging surface of the second frame B221 is an arc surface. That is, the second frame B221 is movably mounted on the first frame B211 and can swing between the first position B201 where the developing roller B222 contacts the photosensitive drum B212 and the second position B202 where the developing roller B222 is separated from the photosensitive drum B212.

[0397] Preferably, along the height direction B03 of the processing cartridge B200, when the second frame B221 is in the first position B201, the rotation axis B213 of the photosensitive drum B212 is parallel to the rotation axis B223 of the developing roller B222 and the rotation axis B223 of the developing roller B222 is not higher than the rotation axis B213 of the photosensitive drum B212; the preferred way is that the rotation axis B213 of the photosensitive drum B212 is parallel to the rotation axis B223 of the developing roller B222 and the rotation axis B223 of the developing roller B222 is at the same height as the rotation axis B213 of the photosensitive drum B212. This is beneficial to increasing the capacity of the developing chamber B124 and storing more toner. The front surface of the developing roller B222 presses against the photosensitive drum B212, which is beneficial to improving the service life of the surface coating of the photosensitive drum B212.

[0398] The processing cartridge B200 includes a drum cartridge B210 and a developing cartridge B220. The first frame B211 is part of the drum cartridge B210, and the second frame B221 is part of the developing cartridge B220.

[0399] Along the width direction B02, a plate body B226 extending along the width direction B02 and serving as a first limiting portion is provided at the first end of the second frame B221, and a column body B227 extending along the width direction B02 and serving as a second limiting portion is provided at the second end. The first limiting portion is not limited to a plate body and may also be other shapes such as a column body, a sphere, etc. The second limiting portion is not limited to a column body and may also be other shapes such as a plate body, a sphere, etc.

[0400] Along the width direction B02, a first through slot B216 extending along the width direction B02 and serving as a first guiding portion is provided at the first end of the first frame B211, and a second through slot B217 extending along the width direction B02 and serving as a second guiding portion is provided at the second end.

[0401] The plate body B226 is slidably fitted on the first through slot B216 serving as a chute to prevent the first end of the first frame B211 from moving up and down in the height direction B03.

[0402] In the width direction B02, at the first ends of the first frame B211 and the second frame B221, first tension springs B109 serving as first reset members are respectively installed through columns B214 and B224. The first reset member is not limited to a tension spring and can also be other suitable elastic members such as a torsion spring.

[0403] In the width direction B02, the second ends of the first frame B211 and the second frame B221 are connected by a second tension spring (not shown in the figure) serving as a second reset member. Under the action of the second tension spring, the column B227 abuts against the inner wall B218 of the second through groove B217.

[0404] When the thrust B104 acts on the thrust receiving portion B225, the second frame B221 horizontally swings with the contact point between the column B227 and the inner wall B218 as the fulcrum.

[0405] On the developing cartridge B220, a power receiving portion B230 for receiving power is provided, including a power engaging portion B231 and a coupling B232 with the power receiving gear B233 and the power engaging portion B231 respectively connected at both ends. Preferably, the coupling B232 is a cross slider. On the side of the power engaging portion B231 close to the coupling B232, a keyway B234 for cooperating with the cross slider is provided. On the side of the power receiving gear B233 close to the coupling B232, a keyway B235 for cooperating with the cross slider is provided. The rotation axis of the power receiving gear B233 extends in the width direction B02 and is rotatably installed on the second frame B221. The rotation axis of the power engaging portion B231 extends in the width direction B02 and is rotatably installed on the first frame B211. Preferably, the power engaging portion B231 is cylindrical, and the clamping block B236 and the first through groove B216 serve as the bearing seats of the power engaging portion B231. Even if the second frame B221 moves under the action of the thrust B104, the power receiving gear B233 can still continuously obtain power from the power engaging portion B231 through the coupling B232. The coupling B232 is not limited to a cross slider coupling and can also be a flexible coupling or other forms of universal couplings.

[0406] The thrust receiving portion B225 is not limited to one. In other embodiments, in the width direction B02, a thrust receiving portion B225 is provided at each end of the first frame B211. When the thrust receiving portions B225 at both ends simultaneously receive the thrust from the pressing portion of the electrophotographic apparatus, the second frame B221 can translate under the guidance of the first through groove B216 and the second through groove B217.

[0407] As an improvement, the second frame B221 can also be translatably mounted on the first frame B211 by a horizontal planar link (not shown in the figure). Even if the first frame B211 is provided with only one thrust receiving portion B225 at only one end along the width direction B02, the second frame B221 can still move translatably.

Claims

1. A process cartridge, detachably mounted in an imaging device provided with a separation control mechanism and a force output member, wherein the force output member comprises a driving portion and a braking portion rotating in the same direction, and the braking portion is movable relative to the driving portion; the process cartridge comprises: A first unit including a first unit housing for storing a developer; A second unit, comprising a second unit housing; a photosensitive drum rotatably disposed in the second unit housing; a developing roller rotatably disposed in the first unit housing and configured to supply developer to the photosensitive drum; a first driving force receiving member, disposed in the first unit, for receiving a driving force for the developing roller; A second driving force receiving member is used to combine with the driving portion to receive the driving force and drive the photosensitive drum to rotate; It is characterized in that During the operation of the process cartridge, the braking portion is pressed by the second driving force receiving member and is in a retracted state; The processing box also includes: The separation contact mechanism is used to receive the separation force and the restoring force applied by the separation control mechanism. Under the action of the separation force, the developing roller and the photosensitive drum are separated from each other, and under the action of the restoring force, the developing roller and the photosensitive drum are brought closer to each other; A locking portion and a locked portion, wherein the developing roller and the photosensitive drum are maintained in one of a state of being close to each other and a state of being separated from each other by the locking portion and the locked portion abutting against each other; elastic force applying member; One of the locking portion and the locked portion is fixedly arranged relative to the first unit housing, and under the action of the elastic force applying member, the other of the locking portion and the locked portion is movably arranged relative to the first unit housing.

2. The process cartridge according to claim 1, wherein: The second driving force receiving member further includes a guide surface and a driving force receiving portion for receiving the driving force, the guide surface guiding the braking portion so that the braking portion is away from the driving force receiving portion.

3. The process cartridge according to claim 1, wherein: The side of the process box where the photosensitive drum and the developing roller are installed is directed to the side where the photosensitive drum and the developing roller are not installed as the upper side, the side opposite to the upper side is the lower side, the direction from the first unit to the second unit is the front side, and the side opposite to the front side is the rear side; When the separation contact mechanism receives the separation force or the restoring force applied by the separation control mechanism, the first unit housing translates relative to the second unit housing in a reference plane including the front-rear direction and the up-down direction; Along the front-rear direction, the direction of the separation force is opposite to the direction of the restoring force.

4. The process cartridge according to claim 1, wherein: The elastic force applying member is used to force the locking portion to move in a direction away from the first unit housing or in a direction close to the first unit housing.

5. The process cartridge according to claim 1, wherein: The processing box also includes an end cover connecting the first unit shell and the second unit shell, the end cover includes an end cover body and an exposure hole and a limiting space arranged on the end cover body, the second driving force receiving member is exposed through the exposure hole, and the elastic force applying member and the locked part are installed in the limiting space.

6. The process cartridge according to claim 1, wherein: The elastic force applying member is used for forcing the locked portion to move along a straight line.

7. The process cartridge according to claim 5 or 6, wherein: The locking portion is provided with a first protrusion. When the process cartridge forms an image, a portion of the locked portion abuts against the first protrusion and is in a locked state, and the developing roller and the photosensitive drum are close to each other.

8. The process cartridge according to any one of claims 1 to 6, characterized in that: When the second driving force receiving member is mounted with the process cartridge, the distal end surface of the second driving force receiving member abuts against the braking portion to force the braking portion to retract.

9. The process cartridge according to any one of claims 1 to 6, characterized in that: The force output member also includes a connecting member connected to the driving part and a positioning column protruding from the connecting member. The driving force receiving member also includes a central column allowing the positioning column to enter and a pressing portion located radially outside the central column, wherein the pressing portion is used to keep the braking part in a retracted state.

Images