Processing box

Abstract

The processing box is detachably mounted in the imaging equipment provided with the force output piece, the force output piece comprises a driving part and a braking part which rotate in the same direction, and the braking part can rotate along with the driving part; the process cartridge includes a housing at least for accommodating a developer; the rotating piece is rotatably arranged in the shell; the driving force receiving part is used for receiving driving force from the imaging equipment so as to drive the rotating part to rotate; the driving force receiving part comprises a driving force receiving part and an auxiliary part which can move relatively, the driving force receiving part is used for being combined with the force output part to receive driving force, and at least one part of the auxiliary part is used for separating the driving part from the braking part in the rotating direction of the force output part; the processing box further comprises a pre-driving assembly, before the force output piece starts to rotate, the pre-driving assembly receives and transmits pre-driving force to directly or indirectly drive the auxiliary piece to rotate, the auxiliary piece can enter the position between the driving part and the braking part more quickly, and therefore sound generated when the force output piece is started can be eliminated or the sound time is shortened.

Description

[0001] This utility model claims the priority of the prior application with the invention name “Processing Box” and application number 2023203097728 filed by the applicant with the China Patent Office on February 23, 2023, and the contents of the prior application are cross-referenced in this application. Technical Field

[0002] The utility model relates to the field of electronic photographic imaging, in particular to a processing box which can be detachably installed in an electronic photographic imaging device. Background Art

[0003] Chinese patent application CN113574469A discloses a force output member (main component side driving force transmission unit) 203 arranged in an imaging device M. As shown in Figure 43 of the patent application, the force output member 203 has a rotation axis M1, including a driving force output member (drum drive coupling) 180 for outputting driving force and a braking force output member (including a first braking coupling member 204 and a second braking coupling member 208) for outputting braking force. When the force output member 203 outputs driving force to the 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 FIG. 45 of the patent application, along the rotation axis M1, the two ends of the driving force output member 180 are respectively provided with a driving force output surface (drive transmission surface) 180d and a flange portion 180a (as shown in FIG. 43 of the cited patent); as shown in FIG. 43, the first brake coupling member 204 has a flange portion 204a and a coupling coupling portion 204b protruding from the flange portion 204a, and the coupling coupling portion 204b is configured to protrude toward the rotation axis M1 of the force output member like a claw, and the second brake coupling member 208 is also It has a flange portion 208a and a coupling coupling portion 208b protruding from the flange portion 208a, and the coupling coupling portion 208b is also configured to protrude toward the rotation axis M1 of the force output member like a claw. Along the radial direction perpendicular to the rotation axis M1, the first brake coupling member 204 is located on the outside of the second brake coupling member 208, and the coupling coupling portion 204b is located on the outside of the coupling coupling portion 208b. The first brake coupling member 204 and the second brake coupling member 208 can rotate around the rotation axis M1 at the same time.

[0005] Figure 1A It is a stereogram of an existing processing box; Figure 1B It is a perspective view of a rotating member on which a conventional driving force receiving member is installed.

[0006] The Chinese patent application CN113574469A also discloses Figure 1BThe rotating member 21 shown in the figure is equipped with an existing driving force receiving member X4, and the rotating member 21 and the driving force receiving member X4 are suitable for Figure 1A An existing processing box C is shown, which includes a first unit 100 and a second unit 200 combined with each other and a driving force receiving member X4 for receiving a driving force from an imaging device, wherein 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, and the driving force receiving member X4 is arranged at a longitudinal end of the processing box C and drives at least one of the first rotating member 11 and the second rotating member 21 to rotate.

[0007] Taking the second rotating member 21 rotating around the rotation axis L21 as an example, Figure 1B As 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 part X44. Along the rotation axis L21, the chassis X42, the base X43 and the coupling part X44 are arranged in sequence, and the coupling part X44 includes a center column X45 and a driving force receiving part X46 extending radially outward along the center column X45, and the driving force receiving part X46 is provided with a guide surface X463 extending in a spiral direction around the rotation axis L21, and a driving surface X464 and a braking surface X465 arranged adjacent to the guide surface, and along the rotation axis L21, the guide surface X463 is located above the braking surface X465.

[0008] During the installation of the processing box C, the guide surface X463 at least abuts against the coupling coupling part 208b in the second brake coupling component 208 to guide the driving force receiving part X46 to enter between the driving force output surface 180d and the coupling coupling part 208b / 204b; when the processing box C is working, the driving force output surface 180d outputs the driving force to the driving surface X464 to drive the rotating member 21 to rotate, and the braking force output member is used to apply braking force to the braking surface X465 downstream in the rotation direction of the driving force receiving part X46. Utility Model Content

[0009] The utility model provides a processing box to further develop the above technology to achieve the purpose of eliminating or reducing the abnormal noise generated by the force output member when starting. The specific scheme is:

[0010] The processing box is detachably installed in an imaging device provided with a force output member, the force output member includes a driving part and a braking part rotating in the same direction, and the braking part can rotate together with the driving part; the processing box includes: a shell, at least for accommodating a developer; a rotating member rotatably arranged in the shell; a driving force receiving member, for receiving a driving force from the imaging device to drive the rotating member to rotate; the driving force receiving member includes a driving force receiving part and an auxiliary member that can move relative to each other, the driving force receiving part is used to combine with the force output member to receive the driving force that drives the rotating member to rotate, and at least a part of the auxiliary member is used to separate the driving part and the braking part in the rotation direction of the force output member; the processing box also includes a pre-driving assembly, before the force output member starts to rotate, the pre-driving assembly receives and transmits the pre-driving force to directly or indirectly drive the auxiliary member to rotate, and the auxiliary member can enter between the driving part and the braking part more quickly, so that the sound generated by the force output member at startup can be eliminated or the time of the sound can be reduced.

[0011] Specifically, the pre-driving assembly includes a driving member receiving the pre-driving force and a driven member for directly or indirectly driving the auxiliary member to rotate. Through the combination of the driving member and the driven member, the pre-driving force is transmitted from the driving member to the driven member.

[0012] The rotating member includes at least one of a developing roller and a photosensitive drum, wherein the developing roller is used to supply developer to the photosensitive drum, and the processing box also includes at least a separation contact mechanism for receiving a separation force from the imaging device, wherein the separation force is used to force the developing roller and the photosensitive drum from a state of being close to each other to a state of being far away from each other.

[0013] The driving member is provided with a pre-driving force output part, and the driven member is provided with a pre-driving force receiving part for combining with the pre-driving force output part. Before the driven member receives the pre-driving force, the pre-driving force receiving part is located on the movement path of the pre-driving force output part.

[0014] In some embodiments, the pre-driving force output portion and the pre-driving force receiving portion transmit the pre-driving force by means of tooth meshing.

[0015] In some embodiments, the pre-driving force outputting portion and the pre-driving force receiving portion transmit the pre-driving force by friction driving.

[0016] A pre-driving force unloading portion for unloading the pre-driving force is arranged on at least one of the driving member and the driven member.

[0017] In some embodiments, the driving member also includes a supporting portion and a forming portion, the pre-driving force output portion is arranged on the forming portion, the supporting portion is used to combine with the separation contact mechanism, the pre-driving force unloading portion is located between the pre-driving force output portion and the forming portion, or, between the forming portion and the supporting portion, or, between the supporting portion and the separation contact mechanism, and the pre-driving force unloading portion is arranged as an elastic member.

[0018] In some embodiments, the pre-driving force unloading portion itself is deformable.

[0019] In some embodiments, the driving member further includes a supporting portion and a forming portion, the pre-driving force output portion is arranged on the forming portion, the supporting portion is used to combine with the separation contact mechanism, and the pre-driving force unloading portion is arranged as a hollow portion located between the forming portion and the supporting portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A It is a stereogram of an existing process box.

[0021] Figure 1B It is a perspective view of a rotating member on which a conventional driving force receiving member is installed.

[0022] Figure 2A It is a stereogram of an existing force output member.

[0023] Figure 2B It is a partial stereogram of an existing force output member.

[0024] Figure 2C It is a partial stereoscopic diagram of a conventional force output component after the braking force output component is hidden.

[0025] Figure 2D It is a top view when observing along the rotation axis of the existing force output member.

[0026] Figure 3A and Figure 3B It is a three-dimensional diagram of the processing box involved in the utility model.

[0027] Figure 4A It is a stereoscopic view of the photosensitive drum of the driving force receiving member involved in the first embodiment of the utility model.

[0028] Figure 4B It is a stereoscopic diagram of the first driving force receiving member involved in the first embodiment of the utility model.

[0029] Figure 4C It is a side view of the first driving force receiving member involved in the first embodiment of the utility model when observed along its rotation axis.

[0030] Figure 5A It is a stereoscopic diagram of the driving force receiving member involved in the second embodiment of the present utility model.

[0031] Figure 5B It is a side view of the driving force receiving member involved in the second embodiment of the present utility model when observed along its rotation axis.

[0032] Fig. 6A It is a schematic diagram of an exploded view of a driving force receiving member involved in the third embodiment of the present utility model.

[0033] Figure 6B It is a schematic diagram of an exploded view of a modified embodiment of the third embodiment of the utility model after the driving force receiving member is separated from the second unit housing.

[0034] Figure 6C is along Figure 6B Cross-sectional view after cutting in the DD direction.

[0035] Fig. 7A It is a three-dimensional diagram of the driving force receiving member involved in the third embodiment of the present utility model.

[0036] Figure 7B It is a side view when observing along the rotation axis of the driving force receiving member involved in the third embodiment of the present utility model.

[0037] Fig. 8A and Figure 8B This is a state diagram of the driving force receiving member and the force output member involved in the third embodiment of the present utility model after being combined.

[0038] Fig. 9 It is a schematic diagram of the disassembly of the separation contact mechanism of the non-driving end of the processing box involved in the fourth embodiment of the present utility model after being separated from the processing box shell.

[0039] Fig.10 This is a state diagram of the separation contact mechanism of the non-driving end of the processing box involved in the fourth embodiment of the present utility model after being pressed.

[0040] Fig.11 It is a schematic diagram of the disassembly of the separation contact mechanism of the non-driving end of the processing box involved in the fifth embodiment of the present utility model after being separated from the processing box shell.

[0041] Fig.12 This is a state diagram of the separation contact mechanism of the non-driving end of the processing box involved in the fifth embodiment of the present utility model after being pressed.

[0042] Fig.13 It is a disassembled schematic diagram of the separation contact mechanism and auxiliary parts of the driving end of the processing box involved in the sixth embodiment of the present utility model after being separated from the processing box shell.

[0043] Fig.14A This is a state diagram of the separation contact mechanism and the auxiliary member when observing along the rotation axis of the driving force receiving member before the separation contact mechanism of the driving end of the processing box involved in the sixth embodiment of the present utility model is pressed.

[0044] Fig. 14B This is a state diagram of the separation contact mechanism and the auxiliary member when observing along the rotation axis of the driving force receiving member after the separation contact mechanism at the driving end of the processing box involved in the sixth embodiment of the present utility model is pressed.

[0045] Fig.15AThis is a state diagram of the separation contact mechanism and the auxiliary member when observing along the rotation axis of the driving force receiving member before the separation contact mechanism of the driving end of the processing box involved in the seventh embodiment of the present utility model is pressed.

[0046] Fig. 15B This is a state diagram of the separation contact mechanism and the auxiliary member when observing along the rotation axis of the driving force receiving member after the separation contact mechanism of the driving end of the processing box involved in the seventh embodiment of the present utility model is pressed. DETAILED DESCRIPTION

[0047] For ease of understanding, except for the driving force receiving member, the numbers and structures of the process cartridge and its components mentioned in the patent application of the background art will be directly cited below.

[0048] It is understandable that the first rotating member 11 and / or the second rotating member 21 described in the background technology patent application can be directly driven by the driving force receiving member X4 or indirectly driven; the processing box C can include the first unit 100 and the second unit 200 at the same time, or only include any one of the first unit 100 and the second unit 200, the developer is contained in the first unit housing 1. The side where the driving force receiving member X4 is provided is called the driving end C1, and the other end opposite thereto is called the non-driving end C2, and the driving end cover / first end cover 300 is installed at the driving end C1. The driving force receiving member X4 is exposed from the driving end C1, and the non-driving end cover / second end cover 400 is installed on the non-driving end C2. 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, buckles, etc. The first end cover 300 and the second end cover 400 can be used as a part of the first unit 100 or the second unit 200, or as a component independent of the first unit 100 or the second unit 200, as long as the first unit 100 and the second unit 200 can be combined. 0 is combined with the first unit housing 1 and the second unit housing 2, and the second end cover 400 is also combined with the first unit housing 1 and the second unit housing 2; the first rotating member 11 can be a developing roller rotatably arranged in the first unit housing 1, and the second rotating member 21 can be a photosensitive drum rotatably arranged in the second unit housing 2. However, the first rotating member 11 and the second rotating member 21 can also be other components that need to rotate in the process box, for example, a charging member 24 for charging the photosensitive drum, a supply member 102 for supplying developer to the developing roller, a stirring member for stirring the developer, etc., as long as the 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 box C can all be called rotating members. The driving force receiving member X4 drives the rotating member to rotate by receiving the driving force from the device. Therefore, the combination of the rotating member and the driving force receiving member X4 can be collectively referred to as a rotating component. An electrostatic latent image can be formed on the surface of the photosensitive drum, and the developing roller is used to supply the developer to the photosensitive drum to develop the electrostatic latent image on the surface of the photosensitive drum.

[0049] When the processing box C is working, 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 represented by the number 4, and the driving force receiving member 4 is fixedly mounted on a longitudinal end of the rotating member, so that the driving force receiving member 4 has the same rotation axis as the rotating member.

[0050] Figure 3A and Figure 3B It is a three-dimensional diagram of the processing box involved in the utility model.

[0051] For the convenience of the following description, it is defined here that the side of the processing box C where the photosensitive drum 21 and the developing roller 11 are installed pointing to the side where the photosensitive drum 21 and the developing roller 11 are not installed is the top, the side opposite to the top is the bottom, 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 that receives the driving force is the left, and the side opposite to the left is the right, the processing box C is installed to the device from top to bottom along the up and down direction, the left side is the driving end C1, and the right side is the non-driving end C2, the first end cover 300 is installed at the driving end C1, and the second end cover 400 is installed at the non-driving end C2, and 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 driving force receiving member 4 for receiving the driving force for the photosensitive drum 21 are both exposed from the first end cover 300.

[0052] Hereinafter, description will be made by taking an example in which the driving force receiving member 4 is directly mounted on the distal end of the photosensitive drum 21 .

[0053]

Force output components in imaging equipment

[0054] In order to make the following description clearer, it is necessary to further describe the force output member 203 in conjunction with the drawings of the patent application (referenced patent application) described in the background art.

[0055] Figure 2A is a stereogram of an existing force output member; 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 It is a top view when observing along the rotation axis of the existing force output member.

[0056] As this patent application Figure 2A-2D As shown, the driving force output member 180 includes a cylindrical portion 180c and flange portions 180a and a driving portion 180h respectively located at both ends of the cylindrical portion 180c, and the braking force output member includes a first braking engagement member 204 and a second braking engagement member 208 that are coupled to each other. Figure 2B As shown, the driving force output member 180 and the braking force output member can rotate in the same 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 box C is installed to the device, the driving force output member 180 and the braking force output member partially overlap.

[0057] The driving force output member 180 includes a first driving force output portion 180h and a second driving force output portion 180m arranged opposite to each other in the radial direction of the force output member, and the braking force output member includes a first braking force output portion 203a and a second braking force output portion 203b arranged opposite to each other in the radial direction of the force output member. Figure 2D As 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.

[0058] like Figure 2D As shown, a dividing line x is drawn through the rotation axis M1, 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. Figure 2D , the dividing line x separates the force output member 203 into a first force output portion 2031 and a second force output portion 2032, wherein the first force output portion 2031 includes a first driving force output portion 180h and a first braking force output portion 203a, and the second force output portion 2032 includes a second driving force output portion 180m and a second braking force output portion 203b. The first driving force output portion 180h and the second driving force output portion 180m have the same structure, the first braking force output portion 203a and the second braking force output portion 203b have the same structure, and the driving force receiving member 4 has the same combination process with the first force output portion 2031 and the second force output portion 2032.

[0059] For ease of description, the following description takes the combination process of the first force output part 2031 and the driving force receiving part 4 as an example; further, the first driving force output part 180h in the first force output part 2031 is referred to as the driving force output part / driving part 180h, and the first braking force output part 203a in the first force output part 2031 is referred to as the braking part 203a. Along the rotation direction r, the braking part 203a is located downstream of the driving part 180h, and the driving part 180h and the braking part 203a can rotate in the same direction around the rotation axis M1, and the braking part 203a can rotate with the driving part 180h. Before the processing box is installed on the device, the driving part 180h and the braking part 203a partially overlap.

[0060] The braking portion 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 on the outside of the second braking engagement member 208. As shown in FIG. 43 of the cited patent application, the first braking engagement member 204 and the second braking engagement member 208 are combined by 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 rotate together around the axis M1.

[0061] Furthermore, the force output member 203 also includes a first spring (drum drive coupling spring) 210 and a second spring (brake combining spring) 211. The first spring 210 abuts against the brake transmission member 207, and the flange portion 207a of the brake transmission member 207 abuts against the second brake combining member 208. At the same time, the protrusion 207f of the brake transmission member 207 also abuts against the contact surface 180f of the driving force output member (as shown in Figure 44 of the cited patent application); the second spring 211 abuts against the flange portion 204a of the first brake combining member 204. Along the axis M1, the first brake combination member 204, the second brake combination member 208 and the driving part 180h are configured to be able to retract and extend along the axis M1, that is, to move along the directions M1A and M1B shown in FIG. 48 of the cited patent application, wherein the first brake structure 204 and the second brake combination member 208 can be retracted and extended along the axis M1 at the same time, and in some imaging devices, the two can also be retracted and extended along the axis M1 respectively; when the first brake combination member 204 moves along the axis M1 in the direction shown in M1A (close to the flange portion 1 80a) and the rotation stop recess 204c and the rotation stop protrusion 208c are disengaged, the first brake combination member 204 can rotate freely around the axis M1; when the second brake combination member 208 moves along the axis M1 in the direction indicated by M1A, the first brake combination member 204 will also move along the axis M1 in the direction indicated by M1A through the rotation stop recess 204c and the rotation stop protrusion 208c. Finally, the first brake combination member 204 and the second brake combination member 208 can both rotate freely around the axis M1.

[0062] Further, as described in reference patent application FIG. 47 and this patent application Figure 2D As shown, the second brake engaging member 208 also has an inward protrusion 208e protruding radially inward from the coupling engaging portion 208b, and the inward protrusion 208e is located at the free end of the second brake engaging member 208 along the direction shown by M1B (as shown in FIG. 48 of the cited patent application) opposite to the direction shown by M1A. Figure 2A-2D As shown, the driving force output surface 180d is located on the driving part 180h, and along the rotation direction of the force output member 203, the driving part 180h is opposite to the first brake coupling component 204. That is to say, a circle is drawn in a plane perpendicular to the rotation axis M1 with the point through which the rotation axis M1 passes as the center. The circle will pass through at least a part of the driving part 180h and at least a part of the first brake coupling component 204 at the same time.

[0063] Continue to refer Figures 2A-2D, the second brake combination member 208 has an inner protrusion 208e protruding toward the rotation axis M1, further, along the rotation direction r of the force output member 203, the first brake combination member 204 has an outer output surface 204g located downstream of the first brake combination member body 204z, the second brake combination member 208 has an inner output surface 208f located downstream of the second brake combination member body 208z, the inner protrusion 208e protrudes radially inward / toward the rotation axis M1 from the second brake combination member body 208z, and along the rotation direction r, the inner protrusion 208e has a plane 208g located downstream, and the plane 208g is adjacent to the inner output surface 208f; further, as Figure 2B As shown, along the rotation axis M1, the driving portion 180h has a driving end surface 180y located at the end, the first brake coupling member 204 has a first brake end surface 204y located at the end, and the second brake coupling member 208 has a second brake end surface 208y located at the end, and the end refers to the end of the driving portion 180h, the first brake coupling member 204 and the second brake coupling member 208 farthest from the flange portion 180a.

[0064] When the driving part 180h and the braking part 203a are close to each other, the driving part 180h and the braking part 203a are not in close contact with each other. Figure 2D As shown, along the rotation direction r, a gap is formed between the first braking end surface 204y and the driving portion 180h, and the minimum value of the gap is s, that is, the shortest distance between the first braking end surface 204y and the driving portion 180h is s.

[0065] like Figure 2C As shown, the driving parts 180h are arranged as two radially opposite to each other along the driving force output member 180, and the driving force output member 180 also includes a connecting member 180k connecting the two driving parts, and 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 sides of the radial direction of the intermediate plate 183, and the following positioning boss 180i protrudes from the intermediate plate 183 along the rotation axis M1, and the first connecting member 181 and the second connecting member 182 have the same structure and are respectively connected to one driving part.

[0066] Furthermore, a lower protrusion 180g is provided on a side surface (driving force output surface) 180d of the driving portion 180h facing the first brake coupling member 204, and along the rotation direction r, the driving portion 180h is also provided with an inclined surface 180j adjacent to the driving force output surface 180d, and an upper protrusion 204f is provided on a side surface of the first brake coupling member 204 facing the driving portion 180h. Before the processing box 100 is installed, the driving portion 180h and the first brake coupling member 204 approach each other along the rotation direction r, and along the rotation axis M1, the upper protrusion 204f and the lower protrusion 180g are relative / overlapping.

[0067] On the whole, the lower protrusion 180g is formed integrally with the first connecting member 181, and the driving force output surface 180d protrudes from the lower protrusion 180g along the rotation axis M1. Along the rotation direction r, the lower protrusion 180g can also be regarded as protruding from the first connecting member 181 / driving force output surface 180d, and the end of the lower protrusion 180g is formed as a front surface 180g1 that can rotate along the driving part 180h; further, along the rotation direction r, the first connecting member 181 also 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 the front surface 180g1 and the sub-front surface 180g2 are both located at the downstream end of the first connecting member 181, and therefore, the front surface 180g1 and the sub-front surface 180g2 can be collectively referred to as the downstream end surface of the first connecting member 181.

[0068] Along the rotation direction r, the force output member 203 has a first space K1, a second space K2 and a third space K3, wherein the first space K1 refers to the space between the front surface 180g1 and the braking portion 203a, and 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, Figure 2D As 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, and the third space K3 refers to the space between the driving portion 180h / driving force output surface 180d and the first braking combination member 204; when the driving portion 180h and the braking portion 203a partially overlap, as shown in FIG. Figure 2D As shown, along the rotation direction r, the second space K2 is larger than the first space K1 / the third space K3.

[0069] like Figure 4A and Figure 4BAs shown, the driving force receiving member 4 involved in the utility model has a rotation axis L21, 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, and is used to transmit 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 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, and 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 extends directly from the connecting portion 41, and more simply, the base 43 can also be omitted, and the coupling portion 44 extends from the connecting portion 41.

[0070] The structure of the coupling portion 44 will be described below, and other structures of the driving force receiving member 4 are not limited here. In order to more clearly show the structure of the driving force receiving member involved in the utility model, only the driving force receiving member 4 is shown below, but it should be understood that the driving force receiving member 4 can be applied to various rotating members in the process box.

[0071]

Drive force receiving part

[0072] [Example 1]

[0073] Figure 4A It is a three-dimensional diagram of a photosensitive drum of a driving force receiving member involved in the first embodiment of the utility model; Figure 4B It is a three-dimensional diagram of the first driving force receiving member involved in the first embodiment of the utility model; Figure 4C It is a side view of the first driving force receiving member involved in the first embodiment of the utility model when observed along its rotation axis.

[0074] The photosensitive drum 21 has a rotation axis L21, and the driving force receiving member 4 includes a connecting portion 41 (eg, Figure 4B As shown), a chassis 42, a base 43 and a coupling portion 44, the coupling portion 42 realizes the connection between the driving force receiving member 4 and the photosensitive drum 21 by being embedded in the photosensitive drum 21, the chassis 42 abuts against the photosensitive drum 21, so that the driving force receiving member 4 is positioned relative to the photosensitive drum 21, the base 43 extends from the chassis 42, and the coupling portion 44 extends from the base 43 away from the chassis 42; as a simplified structure, the chassis 42 can be omitted, and the base 43 extends directly from the coupling portion 41, and more simply, the base 43 can also be omitted, and the coupling portion 44 extends from the coupling portion 41.

[0075] The structure of the coupling portion 44 will be described below, and other structures of the driving force receiving member 4 are not limited here.

[0076] 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 two driving force receiving portions 46 are arranged radially opposite to each other on the periphery of the central column 45. Figure 4A and Figure 4B As shown, each driving force receiving portion 46 includes a base 461 connected to the center column 45 and a protrusion 462 located radially outside the base 461. Along the radial direction of the driving force receiving member 4, the protrusion 462 is located radially outside the base 461, and the guide surface 463 extends from the base 461 toward the protrusion 462. The protrusion 462 has a first surface / driving surface 464 and a second surface / braking surface 465 adjacent to the guide surface 463, and the first surface 464 and the second surface 465 are both parallel to the rotation axis L21.

[0077] As the process cartridge C is installed toward the device, the guide surface 463 guides the braking portion 203a to move relative to the driving portion 180h, so that the driving force receiving portion 46 reaches between the driving portion 180h and the braking portion 203a, that is, the driving force receiving portion 46 enters the third space K3. Figure 4C As shown, the driving force output surface 180d abuts against the first surface 464, and the second surface 465 is spaced apart from the braking portion 203a. When the driving portion 180h rotates along the rotation direction r, the driving force is transmitted to the coupling portion 44 through the first surface 464, and then the photosensitive drum 21 is driven to rotate around the rotation axis L21.

[0078] Since the second surface 465 and the braking portion 203a are spaced apart from each other, that is, the driving force receiving member 4 no longer needs to be braked when it stops working, and in the process of the processing box C returning from the working state to the non-working state or 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 braking portion 203a does not apply the force / braking force to the driving force receiving member 4, which is equivalent to the braking portion 203a being shielded, which is beneficial to reducing the wear of the driving force receiving member 4 during operation. Furthermore, after adopting the driving force receiving member 4 involved in this embodiment, the braking portion 203a in the device no longer needs to return to a position close to or partially overlapping with the driving portion 180h, which is beneficial to simplify the structure of the device. For the driving portion 180h and the braking portion 203a that are already in a separated state, the driving force receiving member 4 of the next processing box does not need to be provided with a guide surface 463, and the structure of the processing box C can also be simplified.

[0079] [Example 2]

[0080] Figure 5A is a three-dimensional diagram of a driving force receiving member involved in the second embodiment of the present utility model; Figure 5B It is a side view of the driving force receiving member involved in the second embodiment of the present utility model when observed along its rotation axis.

[0081] For ease of understanding, the same structures as those of the first driving force receiving member 4 described above will be assigned the same reference numerals.

[0082] The structure of the driving force receiving portion 46 in this embodiment is different from that in the first embodiment. Figure 5A As shown, in this embodiment, the driving force receiving portion 46 is simplified to at least one independent protrusion 462, and the protrusion 462 also has a first surface 464 and a second surface 465 relative to each other. Along the rotation direction r, the first surface 464 is located upstream of the second surface 465. When the processing box C is installed to the predetermined position of the device, the first surface 464 reaches the downstream space K2 (second space K2) of the braking portion 203a. At this time, the first surface 464 is opposite to the braking portion 203a.

[0083] When the processing box 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 driving force receiving member 4 to rotate along the rotation direction r. As in the first embodiment, the driving force receiving member 4 in this embodiment does not need to be braked by the braking part when it stops working, which is beneficial to reduce the wear of the driving force receiving member 4 during operation; in the process of the processing box C returning from the working state to the non-working state or 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 receiving member, which is equivalent to the driving part 180h being shielded.

[0084] The structure of the driving force receiving member 4 in this embodiment is simplified, and at the same time, the contact area between the driving force receiving part 46 and the force output member 203 is increased, thereby improving the combination stability of the driving force receiving part 46 and the force output member 203 and the force stability of the driving force receiving part 46, and the driving force receiving part 46 and the force output member 203 are not easy to separate.

[0085] On the other hand, since the second space K2 is the largest, the driving force receiving part 46 is easier to enter the second space K2 than the driving force receiving part 46 entering the first space K1 or the third space K3. Therefore, the solution of using the braking part 203a to drive the driving force receiving part 4 can also improve the combination efficiency of the driving force receiving part 4 and the force output part 203, and prevent the combination misalignment of the driving force receiving part 4 and the force output part 203.

[0086] [Example 3]

[0087] Fig. 6A It is an exploded schematic diagram of the driving force receiving member involved in the third embodiment of the present utility model; Figure 6B It is an exploded schematic diagram of a modified embodiment of the third embodiment of the utility model, in which the driving force receiving member is separated from the second unit housing; Figure 6C is along Figure 6BSectional view after cutting in the middle DD direction; Fig. 7A is a three-dimensional diagram of a driving force receiving member involved in the third embodiment of the present utility model; Figure 7B It is a side view when observing along the rotation axis of the driving force receiving member involved in the third embodiment of the utility model; Fig. 8A and Figure 8B This is a state diagram of the driving force receiving member and the force output member involved in the third embodiment of the present utility model after being combined.

[0088] The driving force receiving member 4 in this embodiment is arranged so that when the driving force receiving member 4 is combined with the force output member 203, the driving force receiving member 4 is combined with the front surface 180g1 of the driving portion 180h.

[0089] If the driving force receiving member 4 and the force output member 203 adopt the combination method of using the braking part 203a to output the driving force to the driving force receiving member 4 as described in the above embodiment, in actual testing, the imaging device will produce unacceptable noise. According to preliminary analysis, the noise is caused by the collision between the driving part 180h and the braking part 203a that are close to each other, or by the contact between the parts of the force output member 203 and the inner wall of the imaging device, or by the retraction of the braking part 203a toward the inside of the cylindrical part 180c.

[0090] To this end, this embodiment provides a driving force receiving member 4 that can eliminate the above-mentioned noise. Fig. 6A As shown, the driving force receiving member 4 includes a connecting portion 41, a chassis 42, a main body 4x and an auxiliary member 4y, wherein the main body 4x is connected to the connecting portion 41 or the chassis 42, and at least a part of the auxiliary member is used to separate the driving portion and the braking portion in the rotation direction of the force output member; the auxiliary member 4y is arranged to be rotatable relative to the main body 4x / processing box shell / photosensitive drum 21, and 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 4x includes a base 43 connected to the connecting portion 41 or the chassis 42 and a coupling portion 44 arranged on the base 43, and the coupling portion 4 4 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, the driving force receiving portion 46 includes a base 461 and a projection 462, and along the radial direction of the driving force receiving member 4 / combining portion 44, the projection 462 is located radially outside the base 461; as described above, the combining portion 44 also includes a bottom plate 441, the central column 45 extends from one side of the bottom plate 441 along the rotation axis L21, and the combining portion 44 is connected to the base 43 through the bottom plate 441. In this embodiment, at least a portion of the bottom plate 441 can be regarded as the base 461.

[0091] The protrusion 462 is configured as a columnar body extending along the rotation axis L21, and a driving surface 464 for receiving a driving force is configured on the protrusion 462. Preferably, the main body 4x is formed integrally with the connection portion 41 and the chassis 42, and the base 43 and the coupling portion 44 are also formed integrally. The protrusion 462 also has a fourth surface 4621. Along the rotation axis L21, the fourth surface 4621 is the surface of the protrusion 462 that is farthest from the connection portion 41. Along the rotation axis L21, when the protrusion 462 extends beyond the central column 45, the fourth surface 4621 is the end surface 4w of the 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.

[0092] The auxiliary part 4y includes a carrier body 4y1, a separating part 4y2 protruding from the carrier body 4y1, and a limited portion 4y4 arranged on the carrier body 4y1 or the separating part 4y2. In some embodiments, the auxiliary part 4y / carrier body 4y1 is sleeved on the outside of the main body 4x, and the main body 4x is also provided with a limiting portion 434 for combining with the limited portion 4y4. Through the combination of the limited portion 4y4 and the limiting portion 434, the auxiliary part 4y is restricted along the direction of the rotation axis L21, and the auxiliary part 4y is not restricted along the rotation direction r. In some embodiments, the carrier 4y1 is configured as a ring body with an accommodating cavity 4y6 formed inside, at least a portion of the main body 4x is accommodated in the accommodating cavity 4y6, and the limiting portion 4y4 is configured as a snap-fit ​​protrusion that protrudes radially from the ring body 4y1 toward the accommodating cavity 4y6, and the limiting portion 434 is a snap-fit ​​groove arranged on the outer surface of the base 43 or the combining portion 44, and the snap-fit ​​groove 434 extends along the rotation direction r; conversely, the snap-fit ​​groove can also be arranged on the ring body 4y1, and the snap-fit ​​protrusion 4y4 can also be arranged on the base 43 or the combining portion 44, and the snap-fit ​​protrusion can extend a full circle along the rotation direction r, or only extend a predetermined angle along the rotation direction r.

[0093] In some embodiments, in order to facilitate the combination of the snap-fit ​​protrusion 4y4 and the snap-fit ​​groove 434, the auxiliary component 4y is further provided with an elastic arm 4y3 connected to the ring body 4y1, and the snap-fit ​​protrusion 4y4 / the snap-fit ​​groove 434 is provided on the elastic arm 4y3, and the elastic arm 4y3 can be elastically deformed relative to the ring body 4y1, so as to realize the convenient combination of the auxiliary component 4y and the main body 4x; preferably, the elastic arm 4y3 and the main body 4y1 are formed integrally, and a gap is formed between the elastic arm 4y3 and the main body 4y1 so that the elastic arm 4y3 can be elastically deformed relative to the main body 4y1; more preferably, in the case of providing the elastic arm 4y3, the snap-fit ​​portion 4y4 / the snap-fit ​​portion 434 is only provided on the elastic arm 4y3, which is more conducive to the convenient combination of the auxiliary component 4y and the main body 4x.

[0094] In some embodiments, the auxiliary component 4y can also be sleeved on the shell of the processing box, and the limited portion 4y4 can also be set on the auxiliary component 4y, and a limiting portion for limiting the limited portion 4y4 can be set on the shell. It is sufficient to ensure that the auxiliary component 4y can rotate in a direction parallel to the rotation axis L21 and that the auxiliary component 4y will not be separated from the shell; for example, the auxiliary component 4y can be restricted by abutting the end faces of the shell and the auxiliary component 4y; based on the inventive concept, the auxiliary component 4y has a plurality of installation positions. For example, the auxiliary component 4y is sleeved on at least one of the charging component, the supply component and the stirring component.

[0095] Specifically, Figure 6B and Figure 6C As shown, the main body 4y1 is still provided with an elastic arm 4y3, and the elastic arm 4y3 has a snap-fitting portion 4y4. The housing / 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 snap-fitting portion 4y4 abuts against the limiting portion 434, so that the auxiliary member 4y is limited in the direction of the rotation axis L21, but is not limited in the rotation direction r. Further, the auxiliary member 4y is sleeved on the outside of the main body 4x, or in other words, the main body 4x enters the accommodating cavity 4y6, and the auxiliary member 4y can rotate around the main body 4x.

[0096] In some embodiments, the auxiliary component 4y can also be installed in a rotatable manner in a preset positioning groove of the shell or the main body 4x. In this structure, there is no need to set up a component to support the auxiliary component 4y in the positioning groove. The inner wall of the positioning groove can be used to position the auxiliary component 4y. Therefore, the carrier 4y1 can also be set as a solid body, as long as the carrier 4y1 can rotate relative to the shell / photosensitive drum 21.

[0097] Preferably, when the auxiliary member 4y is coaxially arranged with the main body 4x, the separator 4y2 and the protrusion 462 are spaced apart from each other along the radial direction of the driving force receiving member 4, so that the auxiliary member 4y provided with the separator 4y2 can rotate freely around the rotation axis L21.

[0098] Furthermore, the separation member 4y2 is provided with a guide surface 463 and a hook surface 46f, and along the rotation axis L21, the separation member 4y2 has a tip portion 4y21 farthest from the connecting portion 41, wherein the guide surface 463 is used to guide the separation member 4y2 to a predetermined position, the hook surface 46f is arranged to be inclined relative to the rotation axis L21, and the inclination direction of the hook surface 465 is such that when viewed in a direction perpendicular to the rotation axis L21, the hook surface 46f faces the connecting portion 41, and thus, the hook surface 46f can prevent the braking portion 203a from moving toward the flange portion 180a, that is, the hook surface 46f can prevent the force output member 203 from separating from the driving force receiving member 4.

[0099] During the movement of the driving force receiving member 4 toward the force output member 203, the guide 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, and the separating member 4y2 is opposite to the driving force output surface 180d. At the same time, the protrusion 462 reaches downstream of the front surface 180g1 and is located in the first space K1, and the front surface 180g1 is opposite to the driving surface 464.

[0100] When the force output member 203 starts to rotate, the driving force output by the driving portion 180h is transmitted to the 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.

[0101] 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 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.

[0102] 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.

[0103] [Example 4]

[0104] Fig. 9 It is an exploded schematic diagram of the right separation contact mechanism of the process cartridge involved in the fourth embodiment of the present utility model after being separated from the process cartridge housing; Fig.10 This is a state diagram of the right separation contact mechanism of the processing box involved in the fourth embodiment of the utility model after being pressed.

[0105] As described above, during the combination of the driving force receiving member 4 and the force output member 203, the separation member 4y2 in the auxiliary member 4y enters the third space K3 between the driving part 180h and the braking part 203a. When the driving force receiving member 4 is driven by the force output member 203, the noise emitted by the imaging device is eliminated, and the user's experience is improved.

[0106] In actual tests, the inventors found that after the processing box is installed in the imaging device, there is a possibility that the driving force receiving member 4 and the force output member 203 cannot be completely combined, that is, the separating member 4y2 in the auxiliary member 4y has not entered the third space K3 between the driving part 180h and the braking part 203a; in this case, after starting the imaging device, as the force output member 203 rotates, the separating member 4y2 needs to be in a suitable position to enter the third space K3, and then the driving force receiving member 4 and the force output member 203 are completely combined. Therefore, after the force output member 203 starts to rotate, but before the separating member 4y2 enters the third space K3 (which can be called the "combination period"), or after the force output member 203 starts to rotate, but before the driving force receiving member 4 and the force output member 203 are completely combined, along the rotation direction r of the force output member 203, since the driving part 180h and the braking part 203a have not yet separated from each other, the imaging device will still make a noise.

[0107] To this end, based on the above-mentioned embodiment in which the auxiliary part 4y is provided, the present embodiment further improves the structure of the processing box C so that the imaging device will not make any noise during the said combination period, or reduces the noise made by the imaging device during the said combination period. Specifically, the following pre-drive component is provided in the processing box C. Before the force output part 203 starts to rotate, the pre-drive component receives and transmits the pre-drive force to directly or indirectly drive the auxiliary part 4y to rotate a certain angle, so that the separation part 4y2 can enter the third space K3 faster, thereby achieving the effect of preventing the imaging device from making any noise, or reducing the time for the imaging device to make any noise.

[0108] like Fig. 9As shown, at the non-driving end C2, the processing box C is provided with a right separation contact mechanism 5R which can receive a force, and the right separation contact mechanism 5R is used to receive at least a separation force from the imaging device to force the developing roller 11 and the photosensitive drum 21 to move from a state close to each other to a state away from each other. Furthermore, the right separation contact mechanism 5R can also receive a restoring force from the imaging device to force the developing roller 11 and the photosensitive drum 21 to return from a state away from each other to a state close to each other.

[0109] Preferably, the right separation contact mechanism 5R is configured as a rod, including a mechanism body 52 and an acting portion 51 combined with the mechanism body 52, and the acting portion 51 is used to receive an acting force. More preferably, the right separation contact mechanism 5R is configured to be movable in the up and down directions. At this time, the right separation contact mechanism 5R also includes a pressed portion 57 combined with the mechanism body 52. ​​Before the door cover of the imaging device is closed, the right separation contact mechanism 5R does not exceed the processing box housing in the up and down directions. As the door cover of the imaging device is closed, the top plate 94 in the imaging device that is linked to the door cover begins to move downward in the up and down directions. The pressed portion 57 is pressed by the top plate 94, causing the acting portion 51 to also move downward until the acting portion 51 exceeds the processing box housing. Through such a configuration, it is possible to avoid the acting portion 51 from being worn or damaged by contact with external components before being able to receive the acting force.

[0110] Continue as Fig. 9 As shown, a long hole / groove 55 is provided on the mechanism body 52, and correspondingly, a support body 13 extending along the left and right directions is provided on the processing box shell or the cover body combined with the processing box shell. Through the cooperation between the support body 13 and the long hole / groove 55, the right separation contact mechanism 5R can realize movement along the up and down directions.

[0111] Specifically, the processing box C also includes a pre-drive component. Before the force output member 203 starts to rotate, the pre-drive component is used to receive and transmit the pre-drive force to directly or indirectly drive the auxiliary member 4y to rotate, so that the separator 4y2 in the auxiliary member 4y just reaches a position where it can enter the third space K3 (which can be called the "entry position"). At this time, the separator 4y2 is about to or has entered the third space K3, or, in other words, the separator 4y2 in the auxiliary member 4y reaches a position closer to the entry position. When the force output member 203 starts to rotate, the separator 4y2 has entered the third space K3, or, the separator 4y2 can enter the third space K3 faster, so that, along the rotation direction r, the driving part 180h and the braking part 203a are separated from each other, and the imaging device will not make a sound during the said combination period, or, the time for the imaging device to make a sound during the said combination period is reduced.

[0112] It is feasible that the pre-driving force can come directly from the door cover of the imaging device, or from the top plate 94 which is linked with the door cover. In the following, the pre-driving force coming from the top plate 94 is taken as an example for explanation. The top plate 94 presses the pressed part 57, so that the mechanism body 52 and / or the action part 51 move downward in the up-down direction. At the same time, the pre-driving component is driven, and accordingly, the auxiliary part 4y rotates.

[0113] Among them, the pre-drive component can be an independent component, which can directly or indirectly receive the pre-drive force, and directly or indirectly transmit the pre-drive force to the auxiliary component 4y, so that the auxiliary component 4y rotates. In addition, the pre-drive component can also include a driving member 58 combined with the right separation contact mechanism 5R and a driven member 211 combined with the photosensitive drum 21. In this embodiment, the driven member 211 is arranged at a longitudinal end of the photosensitive drum 21. Specifically, the driven member 211 is arranged at a non-driving end C2 of the photosensitive drum 21 in a fixed or movably manner. The driven member 211 is provided with at least one pre-drive force receiving portion 212 for receiving the pre-drive force. It can be realized that the pre-drive force receiving portion 212 can be a protrusion or groove arranged on the driven member 211. Preferably, the pre-drive force receiving portion 212 is arranged on the circumferential surface of the driven member 211. More preferably, the driven member 211 is arranged as a gear rotatable around the rotation axis L21. At this time, the pre-drive force receiving portion 212 is at least one tooth.

[0114] When the driven member 211 is fixedly disposed at the non-driving end C2 of the photosensitive drum 21, the driving member 58 drives the driven member 211 to rotate, and the driven member 211 drives the photosensitive drum 21 to rotate, thereby causing the driving force receiving portion 44 disposed at the driving end C1 of the photosensitive drum 21 to rotate, and the friction force between the driving force receiving portion 44 and the auxiliary member 4y drives the auxiliary member 4y to rotate along the direction r1 around the rotation axis L21.

[0115] When the driven member 211 is movably arranged at the non-driving end C2 of the photosensitive drum 21, the driving member 58 drives the driven member 211 to rotate, and the driven member 211 drives a transmission member (not shown) arranged inside the photosensitive drum 21 and extending in the left-right direction to rotate, and then the transmission member drives the driving force receiving part 44 to rotate, and the friction force between the driving force receiving part 44 and the auxiliary member 4y is used to drive the auxiliary member 4y to rotate around the rotation axis L21 in the direction r1; alternatively, the transmission member directly drives the auxiliary member 4y to rotate around the rotation axis L21 in the direction r1.

[0116] Preferably, the driving member 58 and the right separation contact mechanism 5R are formed integrally, and in some embodiments, the two may also be formed separately.

[0117] The driving member 58 includes a supporting portion 581 and a forming portion 584 which are combined with each other, and a pre-driving force output portion 582 arranged on the forming portion 584, the supporting portion 581 is combined with the right separation contact mechanism 5R, for example, the supporting portion 581 is combined with the mechanism body 52, or the supporting portion 581 is combined with the action portion 51, or the supporting portion 581 is combined with the pressed portion 57; the pre-driving force output portion 582 is used to be combined with the pre-driving force receiving portion 212, preferably, the two have mutually matching shapes, and thus, the pre-driving force output portion 582 can be a protrusion or a groove arranged on the forming portion 584; before the driven member 211 receives the pre-driving force, the pre-driving force receiving portion 212 is located on the movement path of the pre-driving force output portion 582.

[0118] Before the top plate 94 starts to press the pressed portion 57, the pre-driving force receiving portion 212 is located on the movement path of the pre-driving force output portion 582. At this time, the pre-driving force receiving portion 212 and the driving force output portion 582 can be in a state of mutual combination or in a state of mutual non-combination; when the top plate 94 starts to press the pressed portion 57, so that the supporting portion 581 moves downward along with at least a part of the right separation contact mechanism 5R, the pre-driving force output portion 582 starts to output the pre-driving force to the pre-driving force receiving portion 212, thereby causing the driven member 211 to start rotating. As described above, the auxiliary member 4y is driven and rotates around the rotation axis L21.

[0119] like Fig.10 As shown, when the pre-driving force output portion 582 is disengaged from the pre-driving force receiving portion 212, the pre-driving force transmission between the pre-driving force output portion 582 and the pre-driving force receiving portion 212 is interrupted, and even if the driving force receiving member 4 starts to be driven by the force output member 203, thereby causing the photosensitive drum 21 and the driven member 211 to rotate, the driving member 58 will not be driven, that is, the pre-driving force output portion 582 and the pre-driving force receiving portion 4y7 will not interfere with each other.

[0120] From this, it can be seen that the number of protrusions or grooves serving as the pre-driving force output part 582 and the number of grooves or protrusions serving as the pre-driving force receiving part 212 can be set according to the angle at which the auxiliary part 4y needs to rotate, and can be set to one or more.

[0121] Furthermore, in the case where the angle at which the auxiliary member 4y needs to rotate is unclear, if the pre-driving force output portion 582 outputs too much pre-driving force to the pre-driving force receiving portion 212, resulting in the separation member 4y2 in the auxiliary member 4y having reached an entry position capable of entering the third space K3 during the pre-driving force transmission process, the excess driving force output by the pre-driving force output portion 582 to the pre-driving force receiving portion 212 needs to be unloaded, otherwise it may cause the top plate 94 to become stuck during the downward movement, or the acting portion 51 may not reach the predetermined position and cannot receive the acting force. More seriously, the pre-driving force output portion 582 and the pre-driving force receiving portion 212 may not be able to receive the acting force. The transmission of pre-driving force between the receiving part 212 cannot be interrupted, or in other words, the pre-driving force output part 582 and the pre-driving force receiving part 212 cannot be disengaged. Once the driving force receiving member 4 begins to be driven by the force output member 203, either the photosensitive drum 21 will rotate but at least one of the pre-driving force output part 582 and the pre-driving force receiving part 212 will be damaged, or the pre-driving force output part 582 and the pre-driving force receiving part 212 will remain coupled and the photosensitive drum 21 will not rotate, which will eventually result in at least one of the force output member 203 and the driving force receiving member 4 being damaged, or the driving source for the driving force output member 203 in the imaging device will be damaged.

[0122] To this end, as a further improvement scheme of the present embodiment, at least one of the driving member 58 and the driven member 212 is configured to be deformable, or in other words, a pre-driving force unloading portion is provided in at least one of the driving member 58 and the driven member 212, for example, at least one of the pre-driving force output portion 582 and the forming portion 584 is configured to be deformable, so that when the pre-driving force output from the pre-driving force output portion 582 to the pre-driving force receiving portion 212 is excessive, the transmission of the pre-driving force is interrupted by deformation of at least one of the pre-driving force output portion 582 and the forming portion 584.

[0123] Specifically, an elastic member is provided between the pre-driving force output portion 582 and the forming portion 584, or an elastic member is provided between the forming portion 584 and the supporting portion 581, or an elastic member is provided between the supporting portion 581 and the right separation contact mechanism 5R. Fig. 9 and Fig.10 As shown, at least one hollow portion (an embodiment of a pre-driving force unloading portion) 583 is provided between the forming portion 584 and the supporting portion 581. When extrusion occurs between the pre-driving force output portion 582 and the pre-driving force receiving portion 212 due to the excessive pre-driving force, the pre-driving force output portion 582 drives the forming portion 584 to deform / move toward the supporting portion 581 through the hollow portion 583, thereby the pre-driving force output portion 582 is smoothly disengaged from the pre-driving force receiving portion 212, and the transmission of the pre-driving force is interrupted.

[0124] In some embodiments, the pre-driving force may also be the gripping force of the user gripping the handle 19 of the processing cartridge, and when the user releases the handle 19, the pre-driving assembly is driven.

[0125] In some embodiments, the pre-driving force may also be that the user applies a pushing force to a predetermined portion of the processing box C, thereby driving the pre-driving component.

[0126] In some embodiments, the pre-driving force may also be that the drawer-type accommodating portion for accommodating the processing box sinks or rises as the door cover is closed, and during the period of sinking or rising, the inner wall of the imaging device and the processing box abut against each other to generate an abutting force, which drives the pre-driving component.

[0127] In some embodiments, the pre-driving force may also be that, as the door cover is closed, the transfer belt in the imaging device opposite to the photosensitive drum 21 will move relative to the processing box, and the transfer belt will abut against the processing box to generate a contact force, which causes the pre-driving component to be driven.

[0128] In some embodiments, when the top plate 94 presses the pressed portion 57 , if the space in the processing box C allows, the movement direction of the driving member 58 or the pre-driving force output portion 582 may also be upward.

[0129] In some embodiments, the right separation contact mechanism 5R can also be configured to not be able to force the developing roller 11 and the photosensitive drum 21 to move away from or approach each other, but as long as the right separation contact mechanism 5R can be pressed by the top plate 94, the pre-drive component can be configured to receive the pre-drive force as the right separation contact mechanism 5R is pressed.

[0130] [Example 5]

[0131] Fig.11 It is an exploded schematic diagram of the separation contact mechanism of the non-driving end of the process cartridge involved in the fifth embodiment of the present utility model after being separated from the process cartridge housing; Fig.12 This is a state diagram of the separation contact mechanism of the non-driving end of the processing box involved in the fifth embodiment of the present utility model after being pressed.

[0132] Compared with the fourth embodiment, in the present embodiment, the structure of the pre-driving assembly is changed, wherein at least one of the pre-driving force output portion 582 and the pre-driving force receiving portion 212 is configured as a friction component without protrusions or grooves, and the pre-driving force is transmitted between the pre-driving force output portion 582 and the pre-driving force receiving portion 212 by friction driving; as shown in the figure, preferably, the pre-driving force output portion 582 is a friction plate arranged on the forming portion 584, and the pre-driving force receiving portion 212 is a friction portion arranged on the outer surface of the driven member 211, and more preferably, the driving member 58 is formed as a whole by the friction component, and the driven member 211 is formed as a whole as the pre-driving force receiving portion 212.

[0133] The pressed portion 57 is pressed by the top plate 94, and the driving member 58 is driven by the right separation contact mechanism 5R to move downward. At the same time, the driven member 211 is driven by the driving member 58 to rotate around the rotation axis L21 in the direction indicated by r1. At the driving end C1, the auxiliary member 4y is driven by the driving force receiving portion 44 to rotate in the direction indicated by r1.

[0134] In this embodiment, the friction component can generally be made of elastic materials such as rubber and sponge. Therefore, the elastic member / hollow portion 583 will no longer be necessary, and the pre-drive unloading portion is the friction component itself. When the pre-drive force output portion 582 outputs too much pre-drive force to the pre-drive force receiving portion 212, the pre-drive force output portion 582 and the pre-drive force receiving portion 212 can be smoothly disengaged from each other through the elastic deformation of the pre-drive force output portion 582 and / or the pre-drive force receiving portion 212, thereby interrupting the transmission of the pre-drive force.

[0135] As a variation of this embodiment, one of the pre-driving force output portion 582 and the pre-driving force receiving portion 212 can also be configured to have at least one protrusion, and the other can be configured to be a friction component, and the transmission of the pre-driving force is achieved by utilizing the combination of the protrusion and the friction component.

[0136] Similar to the fourth embodiment, the driving member 58 does not need to be combined with the right separation contact mechanism 5R, but can be independently set. At this time, the driving member 58 can directly receive the pre-driving force. Furthermore, along the left and right directions, the driving member 58 can be set at at least one end of the processing box.

[0137] [Example 6]

[0138] Fig.13 It is an exploded schematic diagram of the separation contact mechanism and the auxiliary component of the driving end of the process cartridge involved in the sixth embodiment of the present utility model after being separated from the process cartridge housing; Fig.14A It is a state diagram of the separation contact mechanism and the auxiliary member when viewed along the rotation axis of the driving force receiving member before the separation contact mechanism of the driving end of the process cartridge involved in the sixth embodiment of the present utility model is pressed; Fig. 14B This is a state diagram of the separation contact mechanism and the auxiliary member when observing along the rotation axis of the driving force receiving member after the separation contact mechanism at the driving end of the processing box involved in the sixth embodiment of the present utility model is pressed.

[0139] Generally, separation contact mechanisms are provided at both ends of the processing box C along the longitudinal direction / left-right direction, which are respectively 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 force from the imaging device, the developing roller 11 and the photosensitive drum 21 can smoothly move away from and approach each other.

[0140] In this embodiment, the pre-driving force may also come from multiple sources as described in Embodiment 4 and Embodiment 5. The following still takes the pre-driving force coming from the top plate 94 as an example. Based on the inventive concept of the utility model, in this embodiment, the pre-driving component is arranged on the driving side C1, and the pre-driving component can be arranged independently or in combination with the left separation contact mechanism 5L. When the pre-driving component is arranged independently, the pre-driving component can receive the pre-driving force as the left separation contact mechanism 5L is pressed by the top plate 94, or it can directly contact the top plate 94 to receive the pre-driving force.

[0141] The left separating contact mechanism 5L and the right separating contact mechanism 5R have the same structure. The structure of the left separating contact mechanism 5L will not be described below, but the component names and numbers of the right separating contact mechanism 5R will be directly quoted.

[0142] As an implementation of this embodiment, the pre-drive assembly includes a driving member 58 combined with the left separation contact mechanism 5L and a driven member 4y7 combined with the auxiliary member 4y. Preferably, the driving member 58 is formed integrally with the left separation contact mechanism 5L, and the driven member 4y7 is the pre-drive force receiving part, and is formed integrally with the auxiliary member 4y. Therefore, the pre-drive assembly in this embodiment can directly drive the auxiliary member 4y to rotate. Compared with the method of driving the auxiliary member 4y to rotate by friction force, the auxiliary member 4y can rotate at a larger angle when it is directly driven.

[0143] like Fig.13 As shown, the driving member 58 includes a supporting portion 581 and a forming portion 584 combined with each other, and a pre-driving force output portion 582 arranged on the forming portion 584, the supporting portion 581 is combined with the left separation contact mechanism 5L, and the pre-driving force output portion 582 can be a protrusion or a groove arranged on the forming portion 584; the driven member 4y7 is a groove or a protrusion arranged on the auxiliary member 4y, and preferably, the driven member 4y7 is arranged on the circumferential outer surface of the carrier 4y1 of the auxiliary member.

[0144] According to the angle at which the auxiliary part 4y needs to rotate, the number of protrusions or grooves is set to one or more. When it is set to multiple, the pre-driving force output part 582 can be formed as a rack, and the pre-driving force receiving part 4y7 can be formed as a gear or a ratchet. The pre-driving force output part 582 and the pre-driving force receiving part 4y7 can be regarded as being combined in a tooth-to-tooth meshing manner.

[0145] In order to more clearly show the movement process of the pre-drive assembly and the auxiliary component 4y, Fig.14A and Fig. 14B Irrelevant parts are hidden.

[0146] like Fig.14A As shown, before the pressed portion 57 is pressed by the top plate 94, the pre-driving force receiving portion 4y7 is located on the movement path of the pre-driving force output portion 582. Preferably, the pre-driving force receiving portion 4y7 and the pre-driving force output portion 582 are directly combined. As the top plate 94 moves downward in the up-down direction, the pressed portion 57 is pressed, and the driving member 58 also moves downward. The pre-driving force output portion 582 starts to output the pre-driving force to the pre-driving force receiving portion 4y7. Subsequently, the pre-driving force receiving portion 4y7 drives the auxiliary member 4y to rotate in the rotation direction r1; as shown in FIG. Fig. 14B As shown, when the pre-driving force output portion 582 is disengaged from the pre-driving force receiving portion 4y7, the pre-driving force transmission is interrupted.

[0147] Through the above-mentioned arrangement, the separating member 4y2 in the auxiliary member 4y can just reach the entry position, or a position closer to the entry position. When the force output member 203 starts to rotate, the separating member 4y2 has entered the third space K3, or the separating member 4y2 can enter the third space K3 faster, so that along the rotation direction r, the driving part 180h and the braking part 203a are separated from each other, and the imaging device will not make a sound during the said combination period, or the sound time of the imaging device during the said combination period is reduced.

[0148] Continue as Fig. 14B As shown, after the driving force receiving member 4 is combined with the force output member 203, even if the driving force receiving member 4 rotates along the rotation direction r1 with the force output member 203, the pre-driving force output portion 582 and the pre-driving force receiving portion 4y7 will not be combined / interfered.

[0149] Similarly, at least one of the driving member 58 and the driven member 4y7 may also be provided with a pre-driving force unloading portion. When the pre-driving force output portion 582 outputs too much pre-driving force to the pre-driving force receiving portion 4y7, the excessive pre-driving force may be unloaded through the pre-driving force unloading portion, so that the pre-driving force transmission can be interrupted at a predetermined time. Specifically, the pre-driving force unloading portion may be the hollow portion 583 described above, or may be an elastic member provided in the driving member 58 or the driven member 4y7.

[0150] [Example 7]

[0151] Fig.15A It is a state diagram of the separation contact mechanism and the auxiliary member when viewed along the rotation axis of the driving force receiving member before the separation contact mechanism of the driving end of the process cartridge involved in the seventh embodiment of the present utility model is pressed; Fig. 15B This is a state diagram of the separation contact mechanism and the auxiliary member when observed along the rotation axis of the driving force receiving member after the separation contact mechanism at the driving end of the processing box involved in the seventh embodiment of the utility model is pressed.

[0152] Similar to the fifth embodiment, at least one of the pre-driving force output part and the pre-driving force receiving part in this embodiment is configured as a friction component without protrusions or grooves. By utilizing the friction force of the friction component, the pre-driving force can be transmitted from the pre-driving force output part to the pre-driving force receiving part, that is, the pre-driving force is transmitted between the pre-driving force output part 582 and the pre-driving force receiving part 4y7 by friction driving.

[0153] like Fig.15A As shown, preferably, the pre-driving force output portion 582 is a friction plate arranged on the forming portion 584, and the pre-driving force receiving portion 4y7 is a friction portion arranged on the outer surface 4y11 of the carrier body. At this time, the carrier body 4y1 can be regarded as an embodiment of the driven part. More preferably, the carrier body 4y1 is formed as a whole as the pre-driving force receiving portion 4y7.

[0154] Before the top plate 94 presses the pressed portion 57, the pre-driving force receiving portion 4y7 is located on the movement path of the pre-driving force output portion 582. As the top plate 94 moves downward in the up-down direction, the pre-driving force output portion 582 starts to output the pre-driving force to the pre-driving force receiving portion 4y7, and then the auxiliary member 4y starts to rotate in the rotation direction r1; Fig. 15B As shown, when the pre-driving force output portion 582 is disengaged from the pre-driving force receiving portion 4y7, the pre-driving force transmission is interrupted, and even if the auxiliary member 4y continues to rotate along the rotation direction r1, the pre-driving force output portion 582 and the pre-driving force receiving portion 4y7 will not interfere with each other.

[0155] As mentioned above, the friction component can generally be made of elastic materials such as rubber and sponge, and the pre-driving force unloading part is the friction component itself. When the pre-driving force output part 582 outputs too much pre-driving force to the pre-driving force receiving part 4y7, the pre-driving force output part 582 and the pre-driving force receiving part 4y7 can be smoothly disengaged from each other through the elastic deformation of the pre-driving force output part 582 and / or the pre-driving force receiving part 4y7, thereby interrupting the transmission of the pre-driving force.

[0156] In summary, the pre-drive component can be set at at least one of the driving end C1 and the non-driving end C2, and the pre-drive component can be set independently or can be set to be combined with the separation contact mechanism 5L / 5R. As the separation contact mechanism 5L / 5R is pressed by the top plate 94, the pre-drive component can receive the pre-drive force.

[0157] In some embodiments, even if the separation contact mechanism 5L / 5R is not used to force the developing roller 11 and the photosensitive drum 21 to move away from or approach each other, it will not affect the pre-drive component receiving the pre-drive force by being pressed by the top plate 94 through the separation contact mechanism 5L / 5R; optionally, the pre-drive component can also directly abut against the top plate 94 or other components of the imaging device / processing box to receive the pre-drive force.

[0158] In order to enable the separating member 4y2 to enter the third space K3 faster, it is practicable that a resetting mechanism for resetting the auxiliary member 4y / separating member 4y2 can also be provided in the processing box C. Before the force output member 203 starts to rotate, or before the driving force receiving member 4 and the force output member 203 are completely combined, the separating member 4y2 can reach the entry position by means of the resetting mechanism, thereby ensuring that when the force output member 203 starts to rotate, the separating member 4y2 has entered the third space K3, or the separating member 4y2 can enter the third space K3 at the fastest speed.

[0159] For example, when the processing box C leaves the factory, the reset mechanism is used to reset the auxiliary part 4y / separating part 4y2, or, when the user installs the processing box C, the user applies a pushing force or pressing force to the processing box C to trigger the reset mechanism to reset the auxiliary part 4y / separating part 4y2, or, when the processing box C is pushed into the imaging device along with the drawer of the imaging device, the reset mechanism is triggered to reset the auxiliary part 4y / separating part 4y2, or, when the door cover of the imaging device is closed, the reset mechanism is triggered by the door cover to reset the auxiliary part 4y / separating part 4y2, or, when the door cover of the imaging device is closed, the reset mechanism is triggered by the top plate 94 that can be linked with the door cover to reset the auxiliary part 4y / separating part 4y2.

Claims

1. A process cartridge, detachably mounted in an imaging device provided with 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 can rotate together with the driving portion; Processing box includes: A housing, at least for containing a developer; A rotating member rotatably disposed in the housing; A driving force receiving member, used for receiving a driving force from the imaging device to drive the rotating member to rotate; The driving force receiving member includes a driving force receiving portion and an auxiliary member that can move relatively, the driving force receiving portion is used to be combined with the force output member to receive the driving force that drives the rotating member to rotate, and at least a part of the auxiliary member is used to separate the driving portion and the braking portion in the rotation direction of the force output member; It is characterized in that The processing box also includes a pre-driving component, which receives and transmits a pre-driving force to directly or indirectly drive the auxiliary member to rotate before the force output member starts to rotate.

2. The process cartridge according to claim 1, wherein: The pre-driving assembly includes a driving member receiving the pre-driving force and a driven member for directly or indirectly driving the auxiliary member to rotate. Through the combination of the driving member and the driven member, the pre-driving force is transmitted from the driving member to the driven member.

3. The process cartridge according to claim 2, wherein: The rotating member includes at least one of a developing roller and a photosensitive drum, the developing roller is used to supply developer to the photosensitive drum, and the processing box also includes at least a separation contact mechanism for receiving a separation force from the imaging device, and the separation force is used to force the developing roller and the photosensitive drum from a state of being close to each other to a state of being far away from each other.

4. The process cartridge according to claim 3, wherein: The driving member is provided with a pre-driving force output part, and the driven member is provided with a pre-driving force receiving part for combining with the pre-driving force output part. Before the driven member receives the pre-driving force, the pre-driving force receiving part is located on the movement path of the pre-driving force output part.

5. The process cartridge according to claim 4, wherein: The pre-driving force output part and the pre-driving force receiving part transmit the pre-driving force through the tooth meshing mode.

6. The process cartridge according to claim 4, wherein: The pre-driving force output part and the pre-driving force receiving part transmit the pre-driving force through friction driving.

7. The process cartridge according to any one of claims 4 to 6, characterized in that: A pre-driving force unloading portion for unloading the pre-driving force is arranged on at least one of the driving member and the driven member.

8. The process cartridge according to claim 7, wherein: The driving member also includes a supporting part and a forming part, the pre-driving force output part is arranged on the forming part, the supporting part is used to combine with the separation contact mechanism, the pre-driving force unloading part is located between the pre-driving force output part and the forming part, or between the forming part and the supporting part, or between the supporting part and the separation contact mechanism, and the pre-driving force unloading part is arranged as an elastic part.

9. The process cartridge according to claim 7, wherein: The pre-driving force unloading portion itself is deformable.

10. The process cartridge according to claim 7, wherein: The driving member also includes a supporting portion and a forming portion, the pre-driving force output portion is arranged on the forming portion, the supporting portion is used to be combined with the separation contact mechanism, and the pre-driving force unloading portion is arranged as a hollow portion located between the forming portion and the supporting portion.

Images