WO2023134646A1 - 一种处理盒 - Google Patents

一种处理盒 Download PDF

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Publication number
WO2023134646A1
WO2023134646A1 PCT/CN2023/071424 CN2023071424W WO2023134646A1 WO 2023134646 A1 WO2023134646 A1 WO 2023134646A1 CN 2023071424 W CN2023071424 W CN 2023071424W WO 2023134646 A1 WO2023134646 A1 WO 2023134646A1
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WO
WIPO (PCT)
Prior art keywords
power receiving
gear
power output
process cartridge
power
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Application number
PCT/CN2023/071424
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English (en)
French (fr)
Inventor
敖仕平
Original Assignee
江西亿铂电子科技有限公司
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Publication date
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Publication of WO2023134646A1 publication Critical patent/WO2023134646A1/zh

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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit

Definitions

  • the invention relates to the technical field of electrophotographic imaging, in particular to a process box.
  • the electrophotographic image forming apparatus includes a power output member capable of outputting power, the power output member includes a power output member configured as a concave portion Recesses and PTO gear teeth configured as helical teeth.
  • the existing process cartridge includes a power receiving member convex portion configured as a convex portion and a developing roller gear installed at one end of the developing roller in the axial direction. The gear of the developing roller engages with the concave portion of the power output member to receive the driving force, and the gear of the developing roller engages with the teeth of the power output member to receive the driving force, and the two jointly drive the process cartridge.
  • the above-mentioned process box can receive the driving force of the electrophotographic imaging device, the normal operation of the process box can be guaranteed due to the convex part of the power receiving part and the developing roller gear of the above-mentioned process box needing to mesh with the concave part of the power output part and the gear teeth of the power take-off part respectively.
  • the invention provides a new process box, which is mainly achieved through the following technical solutions:
  • a process cartridge which is detachably installed in an electrophotographic imaging device, the electrophotographic imaging device is provided with a power output member comprising gear teeth of the power output member and a concave portion of the power output member, the process cartridge comprising:
  • a photosensitive drum rotatable around a photosensitive drum axis extending in the left-right direction;
  • a power receiving member provided at an end portion of the photosensitive drum and including a power receiving member protrusion for receiving a driving force for rotating the photosensitive drum from the outside of the process cartridge;
  • a developing roller gear disposed at an end of the developing roller, capable of receiving driving force from the convex portion of the power receiving member to rotate;
  • It also includes an adjustment part, which is arranged at the end of the process box, and the adjustment part is used to limit the movement of the power output member to limit the inclination angle of the power output member, and the adjustment part and the housing A positioning groove is formed between them to cooperate with the positioning rib in the electrophotographic image forming device to limit the movement of the process cartridge in the left and right direction.
  • the end of the convex portion of the power receiving member is provided with a first guide portion, and the first guide portion has a width M1 in the left-right direction, and the width M1 satisfies: 0.2mm ⁇ M1 ⁇ 1mm.
  • the convex portion of the power receiving member has a length M2 in the left-right direction, and the width M1 and the length M2 satisfy: 1/15 ⁇ M1/M2 ⁇ 5/15.
  • the maximum diameter of the trajectory path S1 described by the concave part of the power output part in one rotation is D1
  • the maximum diameter of the trajectory path S2 described by the convex part of the power receiving part in one rotation is D2
  • the D1 and D2 satisfies: 2.4mm ⁇ D1-D2 ⁇ 3mm.
  • the developing roller gear includes a large-diameter gear part of the developing roller and a small-diameter gear part of the developing roller
  • the power receiver further includes a gear of the power receiver, and the large-diameter gear part of the developing roller meshes with the gear of the power receiver And it is configured as a helical gear, and the small-diameter gear portion of the developing roller is configured as a spur gear.
  • the protective cover installed on the right end of the casing, the protective cover is provided with a first bearing for supporting the developing roller, and in the left-right direction, at least a part of the first bearing is aligned with the
  • the adjusting portion has an overlapping portion.
  • a housing bearing hole is provided at the right end of the housing, the power receiving member has a supported portion of the power receiving member, and the supported portion of the power receiving member can be supported by the bearing hole of the housing, and the power receiving member is supported by the bearing hole of the housing.
  • the outer peripheral surface of the supported part of the receiver has an outer diameter D4, and the housing bearing hole has an inner diameter D5, and the D4 and D5 satisfy: 0.2mm ⁇ D5-D4 ⁇ 1.5mm.
  • the power receiving member has a power receiving member gear
  • the inner surface of the power receiving member gear is provided with a power receiving member gear bearing hole
  • the inner diameter of the power receiving member gear bearing hole is D6, and the D6 and the The above D4 satisfies: 0.2mm ⁇ D6-D4 ⁇ 1.5mm.
  • the process box includes an escape portion recessed inwardly from the right end surface of the casing, and the avoidance portion can accommodate at least a part of the gear teeth of the power output member, when the power receiving convex portion and the The process cartridge is not in contact with the gear teeth of the power output member when the concave portion of the power output member is engaged.
  • the process cartridge of the present invention can drive the rotating parts such as the photosensitive drum and the developing roller to rotate only by the coupling of the convex part of the power receiving part and the power output part.
  • the precision required for the manufacture of the process cartridge is reduced. It also reduces the required assembly accuracy of the process box, and greatly improves the coupling accuracy of the power output member and the process box.
  • FIG. 1 is a schematic diagram of an electrophotographic imaging device when the door cover is in an open position in Embodiment 1 of the present invention
  • Fig. 2 is a schematic diagram of a cam member in Embodiment 1 of the present invention.
  • Fig. 3 is a schematic diagram of a side plate cooperating with a cam member in Embodiment 1 of the present invention
  • Fig. 4 is a schematic diagram of cooperation between the cam member and the side plate in Embodiment 1 of the present invention.
  • FIG. 5 is a schematic diagram of the electrophotographic imaging device when the door cover is in the closed position in Embodiment 1 of the present invention.
  • FIG. 6 is a schematic diagram of a certain angle during the process of installing the process cartridge to the electrophotographic imaging device in Embodiment 1 of the present invention
  • Fig. 7 is a schematic view from another angle during the process of installing the process cartridge to the electrophotographic imaging device in Embodiment 1 of the present invention.
  • Fig. 8 is a schematic diagram when the power output member is in the retracted position in Embodiment 1 of the present invention.
  • Fig. 9 is a schematic diagram of the power output member in the extended position in Embodiment 1 of the present invention.
  • Fig. 10 is a schematic diagram of a certain angle of the process cartridge in Embodiment 1 of the present invention.
  • Figure 11 is a schematic sectional view of the process cartridge in Embodiment 1 of the present invention.
  • Figure 12 is a schematic diagram of a certain angle of the power receiving assembly of the process cartridge in Embodiment 1 of the present invention.
  • Figure 13 is an exploded schematic view of the power receiving assembly of the process cartridge in Embodiment 1 of the present invention.
  • Figure 14 is another perspective view of the power receiving assembly of the process cartridge in Embodiment 1 of the present invention.
  • Fig. 15 is a schematic view from another angle during the process of installing the process cartridge to the electrophotographic imaging device in Embodiment 1 of the present invention.
  • Fig. 16 is a partially enlarged schematic diagram of T in Fig. 17 in Embodiment 1 of the present invention.
  • Fig. 17 is a partial schematic diagram of a certain angle at the right end of the process cartridge in Embodiment 1 of the present invention.
  • Figure 18 is a schematic view of the process cartridge viewed from right to left in Embodiment 1 of the present invention.
  • Fig. 19 is a schematic cross-sectional view of the second pre-engagement positioning part in Embodiment 1 of the present invention.
  • Fig. 20 is a schematic diagram of the power receiver in Embodiment 1 of the present invention.
  • Fig. 21 is a schematic diagram of the positional relationship between the power output member and the power receiver before being driven in Embodiment 1 of the present invention
  • Fig. 22 is a schematic diagram of the positional relationship between the driven power output member and the power receiver in Embodiment 1 of the present invention.
  • Fig. 23 is a schematic diagram of the concave part of the power output part and the convex part of the power receiving part in Embodiment 1 of the present invention.
  • Fig. 24 is a schematic diagram of cooperation between the concave part of the power output part and the convex part of the power receiving part in Embodiment 1 of the present invention.
  • Fig. 25 is another partial schematic view of the right end of the process cartridge in Embodiment 1 of the present invention.
  • Figure 26 is a schematic diagram of the process cartridge in Embodiment 2 of the present invention.
  • Fig. 27 is an exploded schematic view of the process box after the protective cover is disassembled from the process box in embodiment 2 of the present invention
  • Fig. 28 is an exploded view of the processing box at a certain angle after the power receiving assembly is disassembled in Embodiment 2 of the present invention
  • Fig. 29 is an exploded schematic diagram of another angle of the processing box after the power receiving assembly is disassembled in Embodiment 2 of the present invention.
  • Figure 30 is a partial schematic view of the right end of the process cartridge in Embodiment 2 of the present invention.
  • Fig. 31 is an exploded schematic view of the power receiver at the end of the photosensitive drum in Embodiment 3 of the present invention.
  • Fig. 32 is a schematic cross-sectional view at the end of the photosensitive drum in Embodiment 3 of the present invention.
  • Fig. 33 is a schematic diagram of a certain angle when the convex part of the power receiver is in the non-driving position in Embodiment 3 of the present invention.
  • Fig. 34 is a schematic diagram of a certain angle when the convex part of the power receiver is in the driving position in Embodiment 3 of the present invention.
  • Fig. 35 is a schematic diagram of another angle when the convex part of the power receiver is in the non-driving position in Embodiment 3 of the present invention.
  • Fig. 36 is a schematic diagram of another angle when the convex part of the power receiver is in the driving position in Embodiment 3 of the present invention.
  • Fig. 37 is a schematic diagram of a certain angle when the convex part of the power receiver is in the extended position in Embodiment 3 of the present invention.
  • Fig. 38 is a schematic diagram of a certain angle when the convex part of the power receiver is in the retracted position in Embodiment 3 of the present invention.
  • Fig. 39 is a schematic cross-sectional view from another angle when the convex part of the power receiver is in the extended position in Embodiment 3 of the present invention.
  • Fig. 40 is a schematic cross-sectional view from another angle when the convex part of the power receiver is in the retracted position in Embodiment 3 of the present invention.
  • Fig. 41 is an exploded schematic diagram of the supported part of the power receiver and the gear of the power receiver disassembled from the housing in Embodiment 3 of the present invention.
  • Fig. 42 is a schematic diagram of the cooperation relationship between the supported part of the power receiver, the gear bearing hole of the power receiver and the bearing hole of the housing in Embodiment 3 of the present invention.
  • Figure 43 is a schematic diagram of the process cartridge in Embodiment 4 of the present invention.
  • Figure 44 is an exploded view of the process cartridge in Embodiment 4 of the present invention.
  • Fig. 45 is a schematic perspective view of the process cartridge in Embodiment 5 of the present invention.
  • Figure 46 is a partial schematic view of the right end of the process cartridge in Embodiment 5 of the present invention.
  • Figure 47 is a schematic diagram of the process box with the protective cover removed from the process box in Embodiment 5 of the present invention.
  • Fig. 48 is a schematic diagram of a certain angle of the disassembled process box of the power receiving assembly in Embodiment 5 of the present invention.
  • Fig. 49 is another perspective view of the disassembled process box of the power receiving assembly in Embodiment 5 of the present invention.
  • Fig. 50 is a schematic diagram of a certain angle in which the electrode and the positioning member are installed on the cover in Embodiment 5 of the present invention.
  • Fig. 51 is a schematic diagram of disassembling the positioning member from the protective cover in Embodiment 5 of the present invention.
  • Fig. 52 is a schematic diagram showing that the positioning member and the electrode are disassembled from the cover in Embodiment 5 of the present invention.
  • Fig. 53 is another perspective view of electrodes and positioning members installed on the cover in Embodiment 5 of the present invention.
  • Fig. 54 is a schematic cross-sectional view of electrodes, positioning members and photosensitive drums installed on the protective cover in Embodiment 5 of the present invention.
  • Fig. 55 is a schematic diagram of the first damping structure in Embodiment 6 of the present invention.
  • Fig. 56 is a schematic diagram of the second damping structure in Embodiment 6 of the present invention.
  • Fig. 57 is a schematic diagram of the third damping structure in Embodiment 6 of the present invention.
  • Fig. 58 is an exploded schematic diagram of the third damping structure in Embodiment 6 of the present invention.
  • Fig. 59 is a schematic diagram of the fourth damping structure in Embodiment 6 of the present invention.
  • Fig. 60 is an exploded schematic view of the fourth damping structure in Embodiment 6 of the present invention.
  • Fig. 61 is an exploded schematic view of the fifth damping structure in Embodiment 6 of the present invention.
  • Figure 62 is a schematic diagram of a certain angle of the process cartridge in Embodiment 7 of the present invention.
  • Fig. 63 is another perspective view of the process cartridge in Embodiment 7 of the present invention.
  • Figure 64 is a schematic diagram of the positional relationship between the developing roller gear and the positioning member in Embodiment 7 of the present invention.
  • Fig. 65 is a schematic diagram of the positioning member meshing with the gear teeth of the power output member in Embodiment 7 of the present invention.
  • Fig. 66 is a schematic diagram of the process of installing the process cartridge to the electrophotographic imaging device in Embodiment 8 of the present invention.
  • Fig. 67 is a partially enlarged schematic diagram of A in Fig. 61 in Embodiment 8 of the present invention.
  • Figure 68 is a schematic diagram of the process cartridge in Embodiment 8 of the present invention.
  • Figure 69 is an exploded view of the process cartridge in Embodiment 8 of the present invention.
  • Fig. 70 is a schematic diagram showing the positional relationship between the positioning member installed on the protective cover and the photosensitive drum in Embodiment 9 of the present invention.
  • the handle 138 and the photosensitive drum 149 are arranged in the front-rear direction of the process cartridge 150, the photosensitive drum 149 is on the front side of the handle 138 in the front-rear direction, and the photosensitive drum 149 can be wound in the left-right direction (hereinafter also referred to as the shaft).
  • the photosensitive drum rotation axis extending in the direction ) rotates, and the power receiving member 148 is disposed on the right side of the process cartridge 150 in the left-right direction.
  • the electrophotographic imaging device includes an installation port 50 and a door cover 13.
  • the door cover 13 has an open position that does not cover the installation port 50 and a closed position that covers the installation port 50, and is respectively arranged on the electrophotographic imaging device.
  • a pair of side plates 20 at the left and right ends, and a receiving portion 30 capable of accommodating the process box 150 is formed between the pair of side plates 20.
  • the process box 150 can move from back to front along the installation opening 50.
  • the direction is installed in the accommodating part 30 in the electrophotographic imaging device according to a predetermined track.
  • the electrophotographic imaging device also includes a cam member 86, a power output member 10 supported on the cam member 86 and capable of outputting power, and a first elastic member 15 connected to the power output member 10, wherein the above-mentioned cam member 86 is connected to
  • the rod member 85 is operably connected with the door cover 13.
  • the power output member 10 can overcome the force of the first elastic member 15.
  • the elastic force moves from the extended position to the retracted position, and can disengage the power output member 10 from the process box 150.
  • the power output member 10 in the retracted position is in the left and right position relative to the power output member 10 in the extended position.
  • the cam member 86 has a basic configuration of a ring, the cam member 86 includes a cam member body portion 86c generally configured as a ring, and a pair of first inclined surfaces provided on the cam member body portion 86c 86a, 86b, the first inclined surfaces 86a, 86b are arranged on the cam member main body 86c at intervals in the circumferential direction of the cam member main body 86c, and the side plate 20 on the right side is formed with a pair of first inclined surfaces 86a.
  • a pair of second inclined surfaces 15d, 15e matched with , 86b, the second inclined surfaces 15d, 15e are formed on the side plate main body portion 15f of the side plate 20, the cam member 86 is under the control of the door cover 13 and the link member 85, Through the cooperation of the first inclined surfaces 86a, 86b and the second inclined surfaces 15d, 15e, it can be moved between the position close to the side plate 20 and the position away from the side plate 20, so that the power output member 10 supported on the cam member 86 Driven to move between positions close to the side plate 20 and away from the side plate 20, that is, the power output member 10 can move between the extended position and the retracted position in the left and right directions; and the above-mentioned power output member 10 can be As a driving part to drive the rotating member in the process box 150 to rotate, the power output member 10 includes a power output member recess 12 configured as a concave portion and a power output member gear tooth 11 configured as helical teeth, and the power output member recess 12 has
  • the shape of a side triangle, but not a strict equilateral triangle but its three vertices (or corners) are obliquely cut into arc-shaped structures; when the door cover 13 moves from the open position to the closed position, it may be due to The fatigue of an elastic member 15 fails or other reasons make the first elastic member 15 unable to fully force or not force the power output member 10 to move from the retracted position to the extended position due to the elastic force generated by the compression.
  • the electrophotographic image forming apparatus further includes a drive gear 1 that is rotatable in the clockwise direction and meshes with the power output member gear portion 9 of the power output member 10, the drive gear 1 is also configured to have helical teeth, and, since The helical tooth portion of the driving gear 1 has a twisting direction to the left, and the power output member gear portion 9 of the power output member 10 has a twisting direction to the right.
  • the driving gear 1 of the drive gear 1 will drive the power output member gear portion 9, which is also configured as a helical tooth, and due to the engagement of the two, an axial force close to the process cartridge 150 in the left and right direction will be generated, forcing the power output member 10 from the retracted position.
  • the electrophotographic imaging device can not only force the power output member 10 to move from the retracted position to the extended position through the cooperation of the door cover 13, the connecting rod member 85, and the cam member 86, but also can drive
  • the axial force generated by the meshing of the gear 1 and the power output member 10 forces the power output member 10 to move from the retracted position to the extended position, so that the probability of extending the power output member 10 is further increased.
  • the process box 150 is detachably installed in the above-mentioned electrophotographic imaging device.
  • the process box 150 includes a housing 140 that can accommodate developer, and a handle 138, and a rotatable photosensitive drum 149 supported on the housing 140 and a rotatable developing roller 139 supported on the housing 140, the handle 138 and the photosensitive drum 149 are arranged in the front and rear direction of the process cartridge 150, and the photosensitive drum 149 On the front side of the handle 138 in the front-rear direction, and the photosensitive drum 149 is rotatable about a photosensitive drum rotation axis extending in the left-right direction, and the developing roller 139 is rotatable about a developing roller rotation axis extending in the left-right direction, the process cartridge 150 also includes At least a part of the rotatable stirring frame 132 is provided inside the housing 140.
  • the stirring frame 132 can be used to stir the developer contained in the housing 140 to transport the developer to the developing roller 139.
  • the developer carried on the developing roller 139 can be The electrostatic latent image on the photosensitive drum 149 is developed by being transported to the photosensitive drum 149 .
  • the process box 150 also includes a power receiving assembly that can be used to drive the rotation of the above-mentioned developing roller 139, photosensitive drum 149 and stirring frame 132.
  • the power receiving assembly is arranged on the right end of the process box 150.
  • the power receiving member 148 includes an integrally formed power receiving member convex portion 141 and a power receiving member gear 142, but this is not limiting, and the power receiving member 148 can also be formed by a split-molded power receiving member convex portion 141 and The power receiving member gear 142 is combined, wherein the power receiving member convex portion 141 has a substantially equilateral triangle shape, but it is not a strict equilateral triangle but its three vertices (or corners) are chamfered
  • the arc-shaped structure, and the power receiving part convex part 141 can be coupled with the power output part concave part 12 in the extended position to be driven to rotate, so as to drive the photosensitive drum 149 to rotate; not only that, the power receiving assembly also
  • the power received by the receiver gear 142 is transmitted to the stirring frame gear 146 through the first intermediate transmission gear 144 and the second intermediate transmission gear 145, thereby driving the stirring frame 132 to rotate by the rotation of the stirring frame gear 146, that is to say, the process box 150 can drive the photosensitive drum 149, the developing roller 139, and the stirring frame 132 to rotate only through the coupling of the power receiving part convex part 141 and the power output part concave part 12.
  • the process box 150 also includes an escape portion 166 formed between the right end surface of the casing 140 and the power receiving member 148 in the left-right direction, or in other words, the right end surface of the casing 140, the regulating portion 160 (described in detail later), the power An avoidance portion 166 is formed between the receiving pieces 148. In other words, the avoidance portion 166 is recessed inwardly from the right end surface of the housing 140.
  • the avoidance portion 166 is configured to avoid the free end of the power output member 10, so that the process cartridge 150 will not contact or interfere with the power output member gear teeth 11, in other words, the avoidance portion 166
  • An avoidance space is formed, and in the avoidance space, no parts in the process box 150 will contact or interfere with the gear teeth 11 of the power output member;
  • the center of rotation of the receiving part 148 is the center of the circle, forming a virtual circle P.
  • the diameter of the virtual circle P is D3. At least it should be larger than the maximum dimension of the gear teeth 11 of the power output member, that is, D3>25.3mm.
  • the power receiving member convex portion 141 is the only power source that receives driving force from the outside in the process box 150 of the present embodiment, and its coupling with the power output member 10 is crucial, because the power output The component 10 is not completely fixed in the radial direction perpendicular to the left-right direction, and it will have a slight radial swing under the action of gravity or during the process of being driven and rotated by the drive gear 1, so the power output component 10 is stretched.
  • the power output member 10 does not extend out in the state that its rotation axis is completely coincident with the rotation axis of the power receiving member convex portion 141, which will cause the power output member 10 to rotate with its rotation axis relative to the rotation axis of the power receiving member convex portion 141. If the rotation axis protrudes at a certain angle, then when the power output member 10 is extended in this state, the concave portion 12 of the power output member may axially interfere with the convex portion 141 of the power receiving member, making it difficult to contact the convex portion 141 of the power receiving member. The coupling of part 141 can not even complete the coupling.
  • the free end (ie, the right end) of the convex part 141 of the power receiving member is set
  • the first guide portion 169 is formed on three sides of an equilateral triangle at the free end of the power receiving member convex portion 141.
  • the first guide portion 169 is a slope inclined relative to the left-right direction.
  • the first guide part 169 should not be set too small to play a better guiding role, but at the same time, in order to make the concave part of the power output part 12 and the convex part 141 of the power receiving part have enough axial coupling, and the two should have sufficient coupling in the left and right directions.
  • the first guide part 169 should have a reasonable size, specifically In other words, the first guide portion 169 has a width M1 in the left-right direction, preferably, 0.2mm ⁇ M1 ⁇ 1mm, more preferably, M1 is preferably 0.3mm, and the height of the power receiving member convex portion 141 (that is, the power receiving member The length of the convex portion 141 in the left and right direction) is M2, wherein, 1/15 ⁇ M1/M2 ⁇ 5/15, within this range, the power receiver convex portion 141 can not only adjust the power through the setting of the first guide portion 169
  • the reliable guidance of the concave part 12 of the output part also makes the two have sufficient coupling amount to maintain a stable coupling during coupling, which further improves the coupling success rate of the concave part 12 of the power output part and the convex part 141 of the power receiving part.
  • the process cartridge 150 is also provided with an adjustment portion 160 provided at the right end portion of the casing 140 and configured as a rib protruding from the right end portion of the casing 140 in a direction perpendicular to the left-right direction, adjusting A first positioning groove 171 is formed between the part 160 and the housing 140. As shown in FIGS.
  • the adjustment part 160 Into the first positioning groove 171, so as to limit the movement of the process cartridge 150 in the left and right direction; and the adjustment part 160 also has an adjustment part 162 facing the rotation axis of the photosensitive drum, and the adjustment part 162 has a basic arc surface structure, but it can also be regarded as a protruding part that protrudes to cover the rotation axis of the photosensitive drum, the adjustment part 162 can be used to limit the inclination of the power output member 10 within a certain range, that is, when the power output member 10 is extended When a certain degree of inclination occurs relative to the left and right directions during the process, the adjustment part 162 can block and limit the power output member 10, thereby inhibiting the increase of its inclination angle.
  • this adjustment part 162 also can be referred to as the first pre-engagement positioning part of process box 150;
  • the engaging positioning portion includes a positioning concave portion 164, which is a concave portion formed on the right end portion of the housing 140, and the positioning concave portion 164 is provided around the power receiving member protrusion 141 in its own circumferential direction, and in a direction parallel to the left-right direction.
  • the convex portion 141 of the power receiving member is accommodated in the positioning recess 164, and the free end of the power output member 10 can be moved when the power output member 10 moves from the retracted position to the extended position. Gradually enter the positioning recess 164 so that the power output member recess 12 is coupled with the power receiving member protrusion 141.
  • the positioning recess 164 can be used to limit and position the free end of the power output member 10 in a direction perpendicular to the left-right direction, so that the power The free end of the output member 10 can move according to a predetermined moving direction to improve the coupling success rate between the concave portion 12 of the power output member and the convex portion 141 of the power receiving member, and avoid the occurrence of relatively large swings at the free end of the power output member 10 .
  • the problem that it is difficult to couple with the convex portion 141 of the power receiving part also avoids the problem that the free end of the power output part 10 swings to a large extent when the two are already in a mutually coupled state, resulting in unstable power transmission, and, in The bottom end of the positioning recess 164 also has a concave bottom surface 165.
  • the process cartridge 150 is installed in the electrophotographic imaging device, the power output member concave portion 12 attracted by the power receiving member protrusion 141 contacts the concave bottom surface 165 through the free end of the power output member 10, And the free end of the power output member 10 is positioned in the left-right direction (axial direction) to limit further leftward movement of the power output member 10 .
  • the second pre-engagement positioning part also includes a second guide part 163, the second guide part 163 is connected to the right end of the positioning recess 164 (that is, the opening of the positioning recess 164), and the second guide part 163 has a bell mouth shape Specifically, the second guide portion 163 has a small diameter portion 167 that is closer to the concave bottom surface 165 in the left-right direction and a large diameter portion 168 that is farther away from the concave bottom surface 165.
  • the second guide portion 163 is configured as With respect to the inclined surface inclined in the left and right directions, when the power output member 10 does not move in the predetermined moving direction and a slight radial deviation occurs during the movement of the power output member 10 from the retracted position to the extended position, the power output
  • the outer peripheral surface of the free end of the component 10 can be guided and installed in the positioning concave portion 164 by the second guiding portion 163 by contacting the second guiding portion 163, which further improves the coupling success rate between the concave portion 12 of the power output component and the convex portion 141 of the power receiving component.
  • the second guide part 163 can also be a structure such as an arc-shaped curved surface or a special-shaped surface; furthermore, in order to enable the second guide part 163 to better guide the power output member 10, the second guide part 163 It should also have a suitable size, and at the same time in order to make the free end of the power output member 10 enter the positioning recess 164 enough, so that the two have sufficient coupling amount in the left and right direction, because too little engagement amount will easily make the power output member 10 The problem of unstable positioning occurs.
  • the width of the second guide part 163 in the left-right direction is K1, and K1 is preferably 0.7 mm.
  • the second guide part 163 is configured to be 0.7 mm.
  • the C angle of mm*0.7mm can optionally be rounded, and the distance from the right end of the second guide portion 163 (ie, the large diameter portion 168) to the concave bottom surface 165 in the left-right direction is K2 (the The distance is the depth of the positioning concave portion 164), wherein, 1/10 ⁇ K1/K2 ⁇ 1/3, when the ratio of K1 and K2 is within this range, the second guide portion 163 can not only stably align the power output member 10 Guiding can also make the engagement amount between the free end of the power output member 10 and the positioning concave portion 164 become sufficient, so that the two become more stable during the coupling process.
  • process box 150 is except adopting the above-mentioned way of suppressing the inclination and swing amount of the power output member 10 and the way that the power output member 10 is inclined to be provided with a guide portion, in order to further improve the power output member concave portion 12 and the power receiving member convex portion
  • the coupling success rate of 141 in the case that the size of the power output member concave portion 12 of the electrophotographic imaging device cannot be changed or is difficult to change, the coupling success of the two can also be improved by changing the external dimension of the power receiving member convex portion 141 Specifically, as shown in Figures 23-24, the maximum diameter of the track path S1 drawn by the recessed portion 12 of the power output member when the power output member 10 rotates one revolution is D1, that is, the diameter of the circumscribed circle of the recessed portion 12 of the power output member is D1, and the maximum diameter of the trajectory path S2 described by the convex portion 141 of the power receiving member rotates once is D2, that is, the diameter of the circumscribed
  • the power output member 10 is extended During the process of pulling out, the concave part 12 of the power output part with a slightly larger external dimension can be coupled with the convex part 141 of the power receiving part with a slightly smaller external size. A certain angle of radial deflection occurs in the center, resulting in that the rotation axis of the power output member 10 does not coincide with the rotation axis of the power receiving member 148. Then, by providing a power receiving member with a slightly smaller external dimension than the concave portion 12 of the power output member.
  • the convex part 141 of the power receiving part can also complete the coupling with the concave part 12 of the power output part after the deflection, which greatly improves the coupling success rate of the two, but if D1 The difference between D2 and D2 is too small, that is, less than or equal to 2.4mm, then the two may still interfere in the axial direction due to the small gap margin between the two due to the small difference in external dimensions, and then it is difficult or even impossible to couple If the difference between D1 and D2 is too large, even if the axial coupling between the convex part 141 of the power receiving part and the concave part 12 of the power output part is completed, slippage may occur due to insufficient radial coupling amount, and then it cannot Stable driving power receiving part convex part 141 rotates; Further, preferably 2.6mm ⁇ D1-D2 ⁇ 2.8mm, under satisfying above-mentioned relation, power receiving part convex part 141 is in the most that
  • the power receiving member convex portion 141 of the process cartridge 150 is in contact with
  • the distance between the power output member recesses 12 of the power output member 10 is L2, which is hereinafter referred to as the second distance L2, and since the power output member 10 can be driven by the drive gear 1 or the cam member 86 and moved for a certain distance Distance L1, the moving distance L1 is hereinafter referred to as the first distance L1, based on this, in order to ensure that the concave portion 12 of the power output member can be axially coupled with the convex portion 141 of the power receiving member, then the first distance L1 needs to be greater than The second distance L2, ie, L1>L2, ensures that the recessed portion 12 of the power output member moving a distance of L1 can be coupled with the convex portion 141 of the power receiving member.
  • the process box 150 is installed in the electrophotographic imaging device, and the power output member 10 is not used.
  • the convex part 141 of the power receiving part should have a reasonable distance range from the concave part 12 of the power output part in the left and right direction.
  • the distance L3 between the right end surface of the convex portion 141 of the power receiving member and the left end surface of the adjusting portion 160 should be greater than or equal to 3mm and less than or equal to 4.3mm, that is, 3mm ⁇ L3 ⁇ 4.3mm, within this range,
  • the convex part 141 of the power receiving part can be successfully coupled with the concave part 12 of the power output part 10 during the extension process of the power output part 10. If L3 is less than 3 mm, the convex part 141 of the power receiving part is further close to the power output part in the left and right direction 10.
  • the convex part 141 of the power receiving part will interfere with the power output part 10 in the installation direction of the process box 150, which will cause the process box 150 to fail.
  • L3 is greater than 4.3 mm, that is, the power receiving member convex portion 141 is further away from the power output member 10 in the left and right direction, at this time, the power receiving member convex portion 141 is due to the distance from the power output member. If the recess 12 is too far away, there may be too little axial coupling with the protruding power output member recess 12 , slipping or even failure to couple. In this regard, these two situations are obviously unwilling to see.
  • it is preferably 3.5mm ⁇ L3 ⁇ 4mm. In this position, the convex portion 141 of the power receiving member is in an optimal position capable of coupling with the concave portion 12 of the power output member.
  • the developing roller gear 243 in this embodiment is a duplex gear, that is, the developing roller gear 243 includes The developing roller large-diameter gear part 243a and the developing roller small-diameter gear part 243b, wherein the developing roller small-diameter gear part 243b is closer to the right end of the process cartridge 250 in the left-right direction than the developing roller large-diameter gear part 243a, wherein the developing roller large-diameter
  • the gear part 243a can be meshed with the power receiver gear 242 to receive the driving force; further, the large-diameter gear part 243a of the developing roller is configured as a helical tooth, while the small-diameter gear part 243b of the developing roller adopts a straight tooth structure different from the helical tooth,
  • the developing roller gear 243 is changed from helical teeth to straight teeth,
  • the first intermediate transmission gear 244 meshes with the small-diameter gear portion 243b of the developing roller
  • the second intermediate transmission gear 245 meshes with the first intermediate transmission gear 244
  • the second intermediate transmission gear 245 meshes with the second intermediate transmission gear.
  • 245 meshes with the agitating frame gear 246, that is to say, after the developing roller gear 243 receives the driving force of the power receiver gear 242, it also transmits the driving force through the first intermediate transmission gear 244 and the second intermediate transmission gear 245.
  • the first intermediate transmission gear 244 includes a first intermediate transmission large-diameter gear portion 244a and the first intermediate transmission small-diameter gear portion 244b, in the left-right direction, the first intermediate transmission large-diameter gear portion 244a is arranged on the right end closer to the process cartridge 250 relative to the first intermediate transmission small-diameter gear portion 244b, that is, the first intermediate transmission
  • the large-diameter gear portion 244a is arranged on the outside of the first intermediate transmission small-diameter gear portion 244b;
  • the second intermediate transmission gear 245 includes a second intermediate transmission large-diameter gear portion 245a and a second intermediate transmission small-diameter gear portion 245b.
  • the second intermediate transfer large-diameter gear part 245a is arranged at the right end closer to the process cartridge 250 relative to the second intermediate transfer small-diameter gear part 245b, that is, the second intermediate transfer large-diameter gear part 245a is arranged at the second intermediate transfer small-diameter gear part 245b, this arrangement makes the arrangement of the gears of the process box 250 more compact, which is beneficial to the miniaturization of the process box.
  • the process box 250 also includes a protective cover 230 installed at the right end of the housing 240, the protective cover 230 can be used to cover the power receiving assembly of the process box 250, and the protective cover 230 is also provided with a first bearing for supporting the developing roller 239 portion 231, the first bearing portion 231 is configured as a hollow cylindrical protrusion, wherein, in the left-right direction, at least a part of the first bearing portion 231 has an overlapping portion with the adjustment portion 260 and the escape portion 266, and the process cartridge 250 is arranged in the above-mentioned manner
  • it improves the space utilization rate of the process box 250 in the left and right directions, makes the structure of the process box more compact, and is conducive to the miniaturization of the process box; specifically, the right end of the developing roller 239 is rotatably supported on the above-mentioned
  • the hollow portion of the first bearing portion 231 is supported by the first bearing portion 231, so that the developing roller 239 is positioned by the first bearing portion 231, further, because the right
  • the material selected for the protective cover 230 is difficult to meet its requirements, so it is preferable that the first bearing part 231 and the protective cover 230 are separated Manufactured, that is to say, the first bearing part 231 is detachably installed on the cover 230, and the two can be made of different materials to meet the wear resistance and lubrication requirements required by the first bearing part 231;
  • the first bearing part 231 is a conductive bearing, which is made of conductive material, that is to say, the first bearing part 231 can be used as a bearing component to support the developing roller 239, and can also be used as an electrode component to transmit power to the developing roller 239 , so that the process box 250 does not need additional electrodes, which simplifies the structure of the process box and reduces the production cost.
  • the first bearing part 231 can also be used as a part of the protective cover 230, that is, the first bearing part 231 and the protective cover 230 are integrally formed.
  • the first bearing part 231 and the protective cover 230 adopt an integral molding process, The above-mentioned assembly error of installing the first bearing part 231 on the cover 230 can be avoided, and the precision and stability of the product can be improved.
  • the convex portion 341 of the power receiving member is still arranged on the right end portion of the supported portion 351 of the power receiving member, but the power receiving member
  • the supported part 351 of the power receiving part is detachably installed on the gear 342 of the power receiving part, that is to say, the convex part 341 of the power receiving part and the gear 342 of the power receiving part are no longer integrated with the above-mentioned embodiment 1 or 2.
  • the two are manufactured separately; further, the process box 350 also includes a first retainer 381 configured as a spring but not limited to a spring, and the first retainer 381 abuts against the power receiving member and is Between the supporting portion 351 and the power receiving member gear 342, when the power receiving member convex portion 341 is not pressed by the outside of the process cartridge 350, as shown in FIGS. 37 and 39, the power receiving member convex portion 341 is held by the first holder The retaining force generated by 381 is kept in the protruding position. When the protruding portion 341 of the power receiving member is pressed by the outside of the process cartridge 350, as shown in FIGS.
  • the supported portion 351 of the power receiving member can overcome the first retaining member. 381 to force the power receiver convex portion 341 to retract a certain distance inwardly.
  • the power receiver convex portion 341 is in the retracted position, and the power receiver convex portion 341 is located in the retracted position relative to the extended position.
  • the power receiver protrusion 341 may be at an extended position farther from the power receiver gear 342 and closer to the power receiver gear 342 in the left-right direction.
  • the process cartridge 350 can be moved in the first holder 381 after the external pressing force of the process cartridge 350 is removed from the power receiving member convex portion 341 Return to the extended position under the action of the generated holding force; when the convex part 341 of the power receiving part is in the extended position, the distance between the right end surface of the convex part 341 of the power receiving part and the left end surface 360a of the adjusting part 360 is H1, when 3mm ⁇ H1 ⁇ 4.5mm, within this range, the distance between the convex part 341 of the power receiving part and the concave part 12 of the power output part is appropriate and has the best coupling effect with the concave part 12 of the power output part.
  • the convex part 341 of the power receiving part may interfere with the electrophotographic imaging device during installation to the electrophotographic imaging device, resulting in the problem that the process cartridge 350 cannot be installed in the electrophotographic imaging device.
  • H1 is greater than 4.5mm, it may be due to The concave part 12 of the power output part is too far to be coupled with the concave part 12 of the power output part; further, since the convex part 341 of the power receiving part is scalable in the left-right direction, it has a certain amount of expansion and contraction W, preferably, 0.5mm ⁇ W ⁇ 3.5mm, the expansion and contraction can be used to compensate the deviation distance of the power receiving member convex portion 341 from the correct position in the left and right direction due to the manufacturing error or installation error of the power receiving member convex portion 341, compared with the previous embodiment 1 Or, the developer cartridge in 2 further improves the coupling success rate between the convex part 341 of the power receiving part and the concave part 12 of the power output part.
  • W preferably, 0.5mm ⁇ W ⁇ 3.5mm
  • the amount of expansion and contraction of the convex portion 341 of the receiving element compensates for the problem of insufficient distance.
  • W is too large, the convex portion 341 of the power receiving element will occupy too much internal space of the process box 350 due to the excessive telescopic stroke, which is not conducive to the miniaturization of the process box.
  • the abutment can be used to limit the position of the supported part 351 of the power receiving part in the left and right direction, so as to prevent the supported part 351 of the power receiving part and the convex part 341 of the power receiving part provided on the supported part 351 of the power receiving part from dislodging from the gear of the power receiving part.
  • the anti-off part 353 is configured as a protrusion protruding outward along the radial direction of the supported part 351 of the power receiving member, further, the anti-off part 353 is preferably simple in structure and has high connection performance.
  • the anti-off portion 353 may also be configured as a structure in which a snap ring engages with the supported portion 351 of the power receiving member, which is not limited.
  • the convex portion 341 of the power receiving member is set as a structure that can be moved telescopically. It can be used to compensate the manufacturing or assembly error caused by the convex part 341 of the power receiving part, and can be adaptively coupled with the power output part 10 within the tolerance range of the error. Therefore, the telescopically movable convex part 341 of the power receiving part not only reduces the power The precision required for the manufacture of the convex part 341 of the receiving part further improves the coupling success rate of the two.
  • the process cartridge 350 is also provided with a device that can delay driving the photosensitive device after the convex portion 341 of the power receiving member receives the rotational driving force from the outside of the process cartridge 350.
  • the time-delay mechanism for the rotation of the drum 349, specifically, on the outer peripheral surface of the power receiving member supported portion 351 is provided a pushing portion 352 configured to extend in the circumferential direction of the power receiving member supported portion 351
  • the pushing portion 352 includes a first pushing portion 352a and a second pushing portion 352b, and the first pushing portion 352a and the second pushing portion 352b are respectively formed on the pushing portion in the direction of rotation of the supported portion 351 of the power receiving member.
  • the first pushing part 352a is arranged upstream of the second pushing part 352b, as a corresponding, formed on the inner surface of the power receiving part gear 342
  • There is a pair of pushed parts that is, a first pushed part 342a and a second pushed part 342b arranged at intervals in the rotation direction of the power receiver gear 342, and each of the first pushed part 342a and the second pushed part 342b is configured as The rib protruding from the inner surface of the power receiving member gear 342, the power receiving member convex portion 341 is not driven by the rotational driving force outside the process cartridge 350, as shown in FIGS.
  • the pushed portion 342a abuts, and the second pushing portion 352b is spaced apart from the second pushed portion 342b in the rotational direction of the power receiving member convex portion 341.
  • the power receiving member convex portion 341 is in a second pushing portion 352a can not drive the non-driving position of the power receiver gear 342 rotation; when the power receiver convex portion 341 is driven by the rotational driving force outside the process cartridge 350 and the photosensitive drum 349 is driven to rotate, as shown in FIGS.
  • the first A pushing portion 352a is spaced apart from the first pushed portion 342a in the rotational direction of the power receiver protrusion 341, and a second pushing portion 352b is held in contact with the second pushed portion 342b and can push the second pushed portion 342b, so that the power receiving member gear 342 and the photosensitive drum 349 connected to the power receiving member gear 342 are driven to rotate, at this time, the power receiving member convex portion 341 is in a position where a second pushing portion 352a can drive the power receiving member gear 342 to rotate driving position; that is to say, when the power receiving part convex part 341 is coupled with the power output part 10 and just receives the rotational driving force transmitted by the power output part 10, the power receiving part convex part 341 just starts to rotate, but, due to the second The pushing part 352b is spaced apart from the second pushed part 342b in the rotational direction of the power receiving part convex part 341.
  • the power receiving part gear 342 will not be driven to rotate immediately, and then the power receiving part convex part 341 drives After the second pushing part 352b rotates counterclockwise by a certain angle, the second pushing part 352b abuts against the second pushed part 342b. At this time, the second pushing part 352b pushes the gear 342 of the power receiving part to start rotating, and then the power receiving part The gear 342 drives the photosensitive drum 349 to rotate.
  • the convex portion 341 of the power receiving member is not fixed on the gear 342 of the power receiving member in its own rotation direction, but has a certain amount of activity.
  • This configuration makes the convex portion of the power receiving member Before 341 reaches the driving position, because it has a certain amount of activity in the direction of rotation, it has a smaller torque than that at the driving position, so that the power output member 10 is in the process of coupling with the convex part 341 of the power receiving member.
  • the output member 10 is easier to couple with the power receiving member convex portion 341 with a smaller torque, further improving the coupling success rate of the power output member 10 and the power receiving member convex portion 341; further, the processing box 350 is also provided with an installation
  • the second retainer 382 on the supported part 351 of the power receiver, the second retainer 382 is preferably a torsion spring, but it is not limited to a torsion spring, it can also be components such as an extension spring, and the second retainer 382 can be used in power.
  • the convex part 341 of the power receiving part When the convex part 341 of the receiving part is not subjected to external force, the convex part 341 of the power receiving part is kept in the non-driving position, and when the external force on the convex part 341 of the power receiving part is removed, the convex part 341 of the power receiving part can be reset from the driving position to the non-drive position.
  • the power output member 10 may swing radially during the process of moving from the retracted position to the extended position, the power output member 10 may In the extension process, the rotation axis of the power output member concave portion 12 and the rotation axis of the power receiving member convex portion 341 do not coincide.
  • the power output member concave portion 12 and the power receiving member convex portion 341 are difficult to Successful coupling, for this reason, be provided with the first pre-engagement locating part and the second pre-engagement locating part that suppresses power take-off member 10 swing amplitude in the above-mentioned embodiment, not only that, for further improving power take-off member concave part 12 Coupling with the power receiving member convex portion 341 is successful.
  • the power receiving member is passed through by the supporting portion 351 and installed in the housing bearing hole 340c formed on the right end portion of the housing 340 and Located in the power receiver gear bearing hole 342c on the inner surface of the power receiver gear 342, there is a clearance fit between the power receiver supported part 351 and the housing bearing hole 340c, and the power receiver convex part and the power receiver gear bearing hole 342c is a clearance fit, which enables the supported part 351 of the power receiving part to move radially relative to the housing 340 and the gear 342 of the power receiving part when subjected to an external force.
  • the convex part 341 of the power receiving part that can radially move along with the supported part 351 of the power receiving part After being contacted by the swinging power output member 10, it can move in the radial direction, and then be axially aligned and coupled with the power output member concave portion 12.
  • the power receiving member convex portion 341 and the power output member concave portion 12 can automatically Adaptively rotate to the coaxial position, that is to say, this structure further improves the coupling success rate between the convex part 341 of the power receiving part and the concave part 12 of the power output part; furthermore, the outer peripheral surface of the supported part 351 of the power receiving part has an outer diameter D4, the housing bearing hole 340c has an inner diameter D5, and the inner diameter of the power receiver gear bearing hole 342c is D6.
  • the inner diameter D6 of the gear bearing hole 342c of the receiving part needs to be larger than the outer diameter D4 of the supported part 351 of the power receiving part.
  • the supported part 351 of the power receiving part relies on the bearing hole 340c of the housing to limit the power receiving
  • the maximum radial movement range of the supported part 351; when D5>D6>D4, the supported part 351 of the power receiving part relies on the gear bearing hole 342c of the power receiving part to limit the maximum radial movement of the supported part 351 of the power receiving part Amplitude; when D6 D5>D4, the two jointly limit the maximum radial movement range of the supported part 351 of the power receiving part; that is to say, the maximum radial movement range of the supported part 351 of the power receiving part is through the housing bearing hole 340c and at least one of the power receiver gear bearing hole 342c; further, in order to better realize the radial movement of the power receiver supported part 351, the housing bearing hole 340c and the power receiver gear
  • the gap between the bearing hole 342c and the supported part 351 of the power receiving part should be kept at an appropriate distance.
  • the supported part 351 of the power receiving part will move too little in radial direction and it will be difficult to match the power receiving part with a large swing range. If the coupling of the output part 10 is too large, the radial movement of the supported part 351 of the power receiving part will be too large and the movement of the supported part 351 of the power receiving part will become unstable, so that it is difficult for the convex part 341 of the power receiving part to connect with the power output part. 10 coupling, preferably, 0.2mm ⁇ D5-D4 ⁇ 1.5mm, or 0.2mm ⁇ D6-D4 ⁇ 1.5mm.
  • the process box 550 in this embodiment 4 also includes a The positioning piece 570, specifically, the positioning piece 570 is installed on the first bearing portion 531 of the protective cover 530, the positioning piece 570 is arranged coaxially with the developing roller gear 543 and the developing roller 539 and can rotate relatively, which not only allows the process cartridge to be set It is more compact, helps to reduce the size of the process box, makes the process box more miniaturized, and also makes the idling positioning member 570 only as an auxiliary part without being used to drive components such as the developing roller 539, which reduces the manufacturing and maintenance costs of the positioning member 570.
  • the positioning member 570 is arranged on the outside of the developing roller gear 543, under the premise that the positioning member 570 and the power output member 10 can be accurately contacted, this structure reduces the power output member 10 at the same time.
  • the extension stroke enables the power output member 10 to contact the positioning member 570 in a shorter stroke, which improves the coupling success rate of the two; in this embodiment, the positioning member 570 and the adjusting part 560 face each other
  • the positioning member 570 is configured to contact and position the power output member 10 during the extension and rotation of the power output member 10, so as to avoid a relatively large radial swing of the power output member 10 during extension and rotation.
  • the positioning member 570 includes an exposed portion exposed to the outside of the process cartridge 550, and at least a part of the exposed portion faces The photosensitive drum rotation axis of the photosensitive drum 549, in other words, at least a part of the exposed portion faces the regulating portion 560 and the escape portion 566, and, in the left-right direction, the positioning piece 570 overlaps at least partially with the regulating portion 560 so that the positioning piece 570 and the
  • the adjustment part 560 can position the power output member 10 from the direction facing each other, so that the force of the power output member 10 is more balanced when the inclination is restricted to prevent the power output member 10 from only tilting towards one side, thereby improving the power output Therefore, under the common positioning of the positioning member 570 and the adjusting portion 560, the coupling accuracy between the concave portion 12 of the power output member and the convex portion 541 of the power receiving member will be greatly improved
  • the positioning member 570 is configured to have a smooth surface. When the positioning member 570 and the power output member 10 are in contact with each other, the friction loss with the power output member can be reduced. Optionally, it can also be a rough surface, as long as it can play The effect of positioning is enough.
  • the embodiment 5 among the present invention will be introduced next, and the positioning member 670 of the process box 650 in this embodiment has the same positional relationship and function as the positioning member in the above-mentioned embodiment 4, No more details here, but the structure of the positioning member 670 in this embodiment is different from the above-mentioned embodiment, the difference is that a plurality of protrusions 671 are also arranged on the outer surface of the positioning member 670 in this embodiment.
  • a plurality of protrusions 671 are arranged at intervals on the outer surface of the positioning member 670 in the circumferential direction of the positioning member 670, and the protrusions 671 can be engaged into the gear teeth 11 of the power output member configured as helical teeth, and can receive the difference from the above-mentioned embodiment.
  • the driving force received by the power receiving member 648 in the example, during the rotation process of the gear tooth 11 of the power output member the two can generate an axial force close to the convex portion 641 of the power receiving member in the left and right direction when the two are meshed.
  • the axial force can force the power output member 10 to move from the retracted position to the extended position.
  • the power output member 10 protrudes, and the process box in this embodiment is also provided with at least one protrusion 671 on the positioning member 670 that can be engaged with the gear teeth 11 of the power output member, so that the power output member 10 can be further forced to extend,
  • This structure also further improves the coupling success rate and coupling stability between the concave part 12 of the power output part and the convex part 641 of the power receiving part.
  • the positioning part 670 is not only helpful for positioning the power output part 10, but also for positioning
  • the protrusion 671 on the member 670 can also be engaged in the gear tooth 11 of the power output member so that the power output member 10 can be pulled out of the electrophotographic imaging device with assistance; further, the width S5 of the protrusion 671 in the left and right direction is Greater than or equal to 0.5mm, less than or equal to 3mm, that is, 0.5mm ⁇ S5 ⁇ 3mm, when S5 ⁇ 0.5mm, the protrusion 671 may break due to insufficient strength, and when S5>3mm, the protrusion 671 is likely to appear difficult to connect with the power output
  • the above-mentioned problem is not easy to occur only if the protrusion 471 is within the above range; more preferably, 1mm ⁇ S5 ⁇ 2mm, within this range, the strength of the protrusion 671 is guaranteed, and the In order to prevent the power output member 10 from being pulled out from the electrophotographic imaging device by the
  • the protrusion 671 is a tooth-shaped protrusion, so that it can be better adapted to the tooth shape and tooth shape of the gear tooth 11 of the power output member, so that the protrusion 671 can be more easily meshed into the gear tooth 11 of the power output member.
  • the positioning member 670 is more preferably a spur gear.
  • the positioning member 670 can also be a sprocket, a ratchet and other components, as long as the above positioning member 670 can be used. The technical effect can be achieved.
  • the second bearing portion 631 for supporting the developing roller 639 and the positioning member 670 is also installed on the protective cover 630, the second bearing portion 631 is configured as a hollow cylindrical protrusion, and the hollow cylindrical protrusion has a The inner peripheral surface 631a inside the second bearing portion 631, and the outer peripheral surface 631b exposed outside the second bearing portion 631, the right end portion of the developing roller 639 is rotatably supported in the hollow portion of the second bearing portion 631 to be second
  • the bearing portion 631 is supported so that the developing roller 639 is positioned by the second bearing portion 631, and the positioning member 670 is installed on the outer peripheral surface 631b of the second bearing portion 631, which further improves the process cartridge in the axial direction.
  • the space utilization rate makes the arrangement of the processing box more compact, which is beneficial to the miniaturization design of the processing box.
  • an electrode 680 electrically connected to the developing roller 639 is also included.
  • the electrode 680 includes a first electrical connection portion 680a electrically connectable to a power supply part (not shown) in the electrophotographic image forming device, and can be connected with the developing roller. 639 is in contact with the third electrical connection portion 680c that can supply power to the developing roller 639, and the second electrical connection portion 680b that electrically connects the first electrical connection portion 680a and the third electrical connection portion 680c, wherein the first electrical connection portion 680a and the second electrical connection part 680b are intersected and bent with each other, and the second electrical connection part 680b and the third electrical connection part 680c are also intersected with each other and bent with each other.
  • the positioning piece 670 covers at least a part of the electrode 680, so as to limit the electrode 680 within a certain range in the axial direction and prevent the electrode 680 from loosening. It will affect the stability of the electrical connection with the developing roller 639; furthermore, the positioning member 670 can be in contact with the electrode 680 to limit the further movement of the electrode 680 towards the direction close to the developing roller 639, which further improves the connection between the electrode 680 and the developing roller.
  • the electrode 680 can be positioned on the cover 630; an opening 631c is also provided on the cylindrical protrusion of the second bearing part 631, at least a part of the electrode 680 can be removed from the second bearing
  • the outside of the part 631 passes through the opening 631c and extends into the cylindrical protrusion of the second bearing part 631.
  • the second electrical connection part 680b of the electrode 680 can pass through the opening 631c and be connected to the third electrical connection.
  • the positioning member 670 also has a hollow inner peripheral surface 672, and a part of the electrode 680 protruding into the cylindrical protrusion of the second bearing part 631 also Inserted in the inner peripheral surface 672 of the positioning member 670, in other words, in a direction perpendicular to the axial direction, at least a part of the electrode 680 overlaps with the positioning member 670, which allows the third electrical connection portion 680c of the electrode 680 to be
  • the right end of the developing roller 639 remains in elastic contact with the hollow portion of the second bearing portion 631 or the inner peripheral surface 672 of the positioning member 670, preventing the electrode 680 from contacting the developing roller 639 located in the hollow portion of the second bearing portion 631
  • the peripheral surface of the developing roller 639 and the electrode 680 will be greatly worn and the circumferential positioning of the developing roller 639 will be unstable.
  • the internal space of the process cartridge 650 can be more effectively utilized.
  • the electrode 680 can still adopt the structure as in Embodiment 2, that is, the second bearing part can be used to support the developing roller, and can also be used to receive the power of the power supply component in the electrophotographic imaging device and transmit the power to the developing roller. roll.
  • the process cartridge 750 in this embodiment also includes a resistance applying part that can apply resistance to the positioning member 770, so as to improve the resistance of the positioning member 770.
  • the rotation torque increases the rotation damping of the positioning member 770.
  • the axial force generated during the meshing rotation between the positioning member 770 and the power output member 10 will become larger, so that the power output member 10 can be more Stable extension, not only that, the engagement of the two will also be more stable, which reduces the swing amplitude of the power output member 10 during the extension movement process, so that the power output member 10 can be connected with the power receiving member in a more stable posture.
  • the convex part 741 is coupled, so the coupling success rate between the power output part 10 and the power receiving part convex part 741 is further improved by providing a resistance applying part on the positioning part 770 .
  • the positioning member 770 is also installed in the first bearing part 731 on the cover 730
  • the positioning member 770 can also be installed on other bearing parts except the first bearing part 731, which is not limited.
  • the outer diameter R1 of the first bearing part 731 is set relative to the positioning member 770
  • the inner diameter R2 of the locator is larger, so as to realize the interference fit between the two.
  • the positioning member 770 has a better rotation effect, which is conducive to pulling out the power output member 10 while the positioning member 770 is rotating, so as to avoid the difference between the two
  • the damping applied to the positioning part 770 is too large, which will cause the positioning part 770 to be difficult to rotate or even not to rotate after being stressed, and the forced rotation will easily cause damage to the positioning part 770;
  • 0.01 ⁇ R1-R2 ⁇ 0.07 increase the lower limit of the difference between R1 and R2, and increase the damping applied to the positioning member 770 to achieve a corresponding effect, while further lowering the upper limit of the difference between R1 and R2 to prevent the positioning member 770 from being stuck;
  • the first bearing part 731 is provided separately from the cover 730, and the first bearing part 731 is detachably installed on the cover 730 in an interference fit manner, and Can
  • the rotation of the positioning part 770 that the bearing part 731 rotates together is also suppressed, and the damping is fed back and applied indirectly to the positioning part 770.
  • the rotation damping of the positioning part 770 is also increased, as another optional implementation
  • the method is to install the positioning member 770 with a smaller inner diameter on the developing roller shaft 739a with a larger outer diameter, which can also achieve the technical effect of increasing the rotational damping of the positioning member 770.
  • Rotational damping is applied to the positioning member 770 upwards, and rotational damping can also be applied to it in the axial direction (ie, left and right directions).
  • the positioning member 770 is adjacent to the developing roller gear 743 in the axial direction and has an interference. Fitting way is installed in the process cartridge 750, that is to say, at this time the positioning member 770 is positioned between the first bearing portion 731 and the developing roller gear 743 in the axial direction to achieve interference, of course, optional Yes, a stopper may also be provided between the positioning member 770 and the developing roller gear 743, and the positioning member 770 is positioned between the first bearing portion 731 and the stopper in the axial direction to achieve interference.
  • the positioning member 770 is installed in the process cartridge 750 in an interference fit manner, wherein the resistance applying member can be understood as the first bearing portion 731 or the developing roller shaft 739a or the developing
  • the roller gear 743 or the stopper may be any part that interferes with the positioning member 770 .
  • the positioning member 770 is no longer installed on the first bearing part 731 of the cover 730, but Like the developing roller gear 743, it is installed on the developing roller shaft 739a, and the positioning piece 770 is arranged on the outside of the developing roller gear 743 in the left-right direction. Moreover, the positioning piece 770 has a positioning hole 772 with a D-shaped end face for matching installation.
  • the positioning member 770 can also drive the developing roller to rotate like the developing roller gear 743 after receiving the rotational driving force of the power output member 10, so, compared with the previous embodiment
  • the positioner and the developing roller gear 743 in the structure can rotate relatively, the positioner will keep idling and the load is small, and the positioner 770 with the second damping structure has a larger load when rotating, forcing the positioner 770
  • the rotation resistance of the rotation is increased, and the power output member 10 can also be pulled out to the extended position more stably and smoothly; optionally, the positioning member 770 can not only be installed on the end face through the positioning hole 772 with a D-shaped end face.
  • the positioning member 770 can also be set to have other shaped holes other than the D-shaped hole to match and be installed on the developing roller shaft 739a with a shaped end surface, which is not limited.
  • the resistance applying member can be understood as a developing roller.
  • the resistance applying component is at least one elastic member 773 arranged on the cover 730, and the elastic member 773 is arranged radially outside the positioning member 770. And arranged at a certain distance in the rotation direction of the positioning member 770, during the rotation of the positioning member 770, the main body or the protrusion 771 of the positioning member 770 can contact the elastic member 773 for multiple times in a cycle, during the contact process between the two, the elastic
  • the member 773 can inhibit the rotation of the positioning member 770, thereby increasing the rotation damping of the positioning member 770;
  • the elastic member 773 is preferably soft rubber, which can not only achieve the effect of increasing the damping , it is also not easy to wear and tear during repeated contact with the positioning member 770, which improves the service life of the elastic member 773; optionally, the position of the elastic member 773 can also be set on the housing or independent of the housing or the cover 7
  • the resistance applying part is an elastic buckle 774 arranged on the first bearing part 731, and the first bearing part 731 and the elastic buckle 774 are integrally formed. , when producing the first bearing part 731 and the elastic buckle 774, only one set of molds is needed, which reduces the production cost. Of course, the two can also be manufactured separately; in the fourth damping structure, the positioning part 770 is also Installed on the first bearing part 731, this makes the elastic force generated by the elastic buckle 774 act outwardly on the positioning piece 770 in the axial direction, so that the frictional resistance between the positioning piece 770 and the cover 730 increases, thereby increasing the positioning.
  • the rotation damping of the member 770 of course, optionally, the resistance applying part in the fifth damping structure can also be set as a spring or a part with better elasticity.
  • the resistance applying part is a torsion spring 775, which is installed on the positioning column 730a formed on the inner surface of the protective cover 730, and one end of which abuts on the On the inner surface of the protective cover 730, the other end abuts against the positioning member protrusion 776 on the positioning member 770.
  • the positioning member protrusion 776 is a plurality of protrusions formed on the outer circumferential surface of the positioning member 770 and arranged at intervals along the circumferential direction.
  • the elastic force generated by the twisting deformation of the torsion spring 775 can be applied to the positioning member 770, thereby increasing the rotation damping of the positioning member 770.
  • the positioning member 770 can rotate against the elastic force.
  • Embodiment 7 shows a process box 900, which has the same part as the process box in the above-mentioned Embodiments 1-6, and will not repeat them here. , the difference is that the positioning member 970 of the process cartridge 900 does not coincide with the rotation axis of the developing roller 939, in other words, the developing roller 939 can rotate around the first axis A1 extending in the left-right direction, and the positioning member 970 can extend around the left-right direction
  • the second axis A2, which is different from the first axis A1, rotates.
  • the first axis A1 and the second axis A2 are arranged at intervals in the front-rear direction, and the second axis A2 is arranged on the front side of the first axis A1 in the front-rear direction.
  • the positioning member 970 in this embodiment is installed on the second bearing portion 933 formed on the protective cover 930, and the positioning member 970 is mounted on the second bearing portion 933 so as to be rotatable relative to the developing roller gear 943,
  • the second bearing portion 933 is configured as a cylindrical protrusion formed on the surface facing the left end of the process cartridge 950 from the upper surface of the protective cover 930, and the diameter of the positioning piece 970 is smaller than the minimum tooth diameter of the developing roller gear 943 to avoid contact with the developing roller gear.
  • the structure of the positioning member 970 can also be that the outer surface is a smooth or rough surface, or the outer surface is provided with a plurality of protrusions, or tooth-like protrusions, or spur gears or helical gears, here It will not be described in detail here.
  • the power output member 10 can be positioned during the installation process of the process box 950 and the power output member can be assisted by engaging with the gear teeth 11 of the power output member. 10 pull-out technical effects.
  • the process cartridge 950 is also provided with a resistance applying component that applies resistance to the positioning member 970 as described in Embodiment 7, so as to increase the rotational torque of the positioning member 970 and increase the force of the positioning member 770.
  • Rotational damping for example, the positioning member 970 can be installed on the second bearing part 933 through interference fit, and the two are matched by a tight fit, and so on.
  • Embodiment 8 of the present invention provides an electrophotographic image forming apparatus and a process cartridge different from the above-mentioned Embodiments 1-7.
  • the electrophotographic image forming apparatus in this embodiment When the door cover of the device moves between the closed position and the open position, the power output member 10 will not move between the retracted position and the extended position, and the power output member 10 in this embodiment is tiltable, specifically In other words, when the process cartridge 850 is not installed in the electrophotographic image forming apparatus, the rotation axis of the power output member 10 is inclined with respect to the left-right direction to be in an inclined position, and when the process cartridge 850 is installed in the electrophotographic image forming apparatus with the door cover in the When the closed position and the electrophotographic imaging device is in the working process, the rotation axis of the power output member 10 is parallel to the left and right direction and is in a straightening position.
  • the process box 850 is different from the above-mentioned embodiment 1 in that it is installed in the shell
  • the adjustment part 860 at the right end of the body 840 is movable relative to the housing 240. In the direction perpendicular to the rotation axis of the photosensitive drum, the adjustment part 860 can be in a first position close to the rotation axis of the photosensitive drum and a second position away from the rotation axis.
  • the adjustment part 860 is used to adjust the angle of the power output member 10 during the installation process of the process box 850, so as to adjust the power output member 10 from the inclined position to the upright position, and the process box 850 also includes the same
  • the locating piece 870 described in the example and the resistance applying part that applies resistance to the locating piece 870, the locating piece 870 preferably has a tooth-like protrusion structure, which can be a structure such as a spur gear, a helical gear, a ratchet and a sprocket, and can be Optionally, it can also be a structure with a smooth or rough outer surface, which is not limiting, but this embodiment adopts a preferred implementation mode; It is also installed on the first bearing part 831 on the protective cover 830, the positioning part 830 is installed on the first bearing part 831 in an interference fit manner, and the developing roller 839 is rotatably supported on the first bearing part 831.
  • the positioning member 870 is arranged coaxially with the developing roller 839 and can rotate relative to the protective cover 830 and the developing roller 839.
  • the outer diameter R1 of the first bearing portion 831 is set larger than the inner diameter R2 of the positioning member 870 to achieve an interference fit between the two, thereby increasing the rotational damping of the positioning member 870.
  • the positioning member 870 has a better rotation effect, which is conducive to pulling out the power output member 10 while the positioning member 870 is rotating, so as to avoid the difference between the two
  • the damping applied to the positioning member 870 is too large, which will cause the positioning member 870 to be difficult to rotate or even not rotate after being stressed, and the forceful rotation will easily cause damage to the positioning member 870;
  • 0.01 ⁇ R1-R2 ⁇ 0.07 increase the lower limit of the difference between R1 and R2, and increase the damping applied to the positioning member 870 to achieve a corresponding effect, while further lowering the upper limit of the difference between R1 and R2 to avoid the positioning member 870 from being stuck;
  • the first bearing portion 831 is detachably mounted on the cover 830 in an interference fit manner, and can rotate relative to the cover 830 , in other words, when the positioning member 870 drives the first bearing portion 831 to rotate
  • the rotation of the positioning part 870 that is installed on the first bearing part 831 and can rotate together with the first bearing part 831 is also restrained, and the damping feedback is applied indirectly to the positioning part 870. In this way As a result, this also increases the rotational damping of the positioning member 870.
  • the positioning member 870 with a smaller inner diameter is installed on the developing roller shaft 839a with a larger outer diameter, which can also be realized.
  • the technical effect of increasing the rotational damping of the positioning member 870 is not limited, and, in addition to applying rotational damping to the positioning member 870 in the circumferential direction, rotational damping can also be applied to the positioning member 870 in the axial direction (ie, left and right directions).
  • the positioning member 870 is adjacent to the developing roller gear 843 in the axial direction and installed in the process cartridge 850 in an interference fit manner, that is, the positioning member 870 at this time is positioned in the axial direction
  • a stopper may also be provided between the positioning member 870 and the developing roller gear 843, and the positioning member 870 on the axis It is positioned between the first bearing portion 831 and the stopper in the direction to achieve interference.
  • the positioning member 870 is installed in the process cartridge 850 in an interference fit manner, wherein the resistance applying member can be understood as the first bearing portion 831 or the developing roller shaft 839a or the developing roller shaft 839a.
  • the roller gear 843 or the block as long as it is an interference fit part with the positioning part 870, and the resistance applying part can also be the developing roller shaft 839a, elastic part, elastic buckle, torsion spring, etc. mentioned in Embodiment 6 above. structure, which will not be repeated here.
  • the first bearing portion 831 requires good wear resistance and lubricity.
  • the material selected for the protective cover 830 is difficult to meet the requirements, so
  • the first bearing part 831 and the cover 830 are manufactured separately, that is, the first bearing part 831 is detachably mounted on the cover 830, the two can be made of different materials to meet the wear resistance and lubrication requirements of the first bearing part 831.
  • the first bearing part 831 can also be used as a part of the protective cover 830, that is, the first bearing part 831 A bearing part 831 is integrally formed with the protective cover 830; further, the first bearing part 831 is a conductive bearing made of conductive material, that is to say, the first bearing part 831 can be used as a bearing component to support the developing roller 839 can also be used as an electrode component to transmit power to the developing roller 839, so that the process box 850 does not need additional electrodes, which simplifies the structure of the process box and reduces the production cost. Further, in the left-right direction, the positioning member 570 and the adjusting portion 860 at least partially overlap.
  • This configuration enables the positioning member 870 and the adjusting portion 860 to position the power output member 10 from the direction facing each other, so that the power output member 10 When the inclination is limited, the force is more balanced to prevent the power output member 10 from only tilting toward one side, which improves the extension stability of the power output member.
  • the process cartridge 850 in this embodiment can also drive the photosensitive drum 849, developing roller 839, The stirring frame rotates, but, the process box 850 in the present embodiment can be not provided with the locating member the same as the process box in the above-mentioned embodiment 1, and the power output member 10 can be driven from the retracted position only by the driving of the drive gear 1 Move to the protruding position and couple with the power receiver protrusion 841, but this is not limiting; The other listed structures of the process box 850 in 7 can still be applied to the process box 850 in this embodiment, and will not be repeated here.
  • the electrophotographic imaging device also includes a cover portion 40 that is arranged on the side plate 20 and can cover at least a part of the power output member 10.
  • the cover portion 40 is provided with a first exposure hole 41 and a second exposure hole with different exposure directions. 42 and the third exposure hole 43, the exposure direction of the first exposure hole 41 intersects the exposure directions of the second exposure hole 42 and the third exposure hole 43, wherein the first exposure hole 41 can be used to expose the concave portion 12 of the power output member to It is allowed to be coupled with the power receiving member protrusion 841 of the process box 850, and the second exposure hole 42 and the third exposure hole 43 both expose the power output member gear teeth 11, but the difference between the two is that the second exposure hole 42 is configured
  • the third exposure hole 43 is configured to allow the positioning member 870 to engage with the power output member gear teeth 11 to position the power output member 10 and The power output member 10 can be assisted to be pulled out from the
  • Embodiment 9 of the present invention a kind of processing cartridge is shown in Embodiment 9, and the same part in the processing cartridge of above-mentioned embodiment will not be repeated, the difference is , measured along a direction perpendicular to the axis of rotation of the photosensitive drum, the distance P from the axis of rotation of the photosensitive drum to the end of the exposed protrusion 471a is not less than 90% of the radius R of the photosensitive drum 449 and not greater than 110% of the radius R of the photosensitive drum 449 , that is, 0.9R ⁇ P ⁇ 1.1R, when P is within this range, the positioning member 470 has the best meshing state with the gear teeth 11 of the power output member, and the power output member 10 moves from the retracted position to the It will become easier and more stable when the position is extended.
  • the protrusion 471 of the positioning member 470 is difficult to engage with the power output member gear teeth 11 of the power output member 10 or even cannot be engaged.
  • the protrusion 471 of the positioning member 470 is likely to interfere with the power output member gear teeth 11 of the power output member 10 and cannot mesh; more preferably, along Measured in a direction perpendicular to the axis of rotation of the photosensitive drum, the distance P from the axis of rotation of the photosensitive drum to the end of the exposed protrusion 471a is not less than 93% of the radius R of the photosensitive drum 449 and not greater than 107% of the radius R of the photosensitive drum 449, that is, 0.93 R ⁇ P ⁇ 1.07R.
  • the process cartridge in the above-mentioned embodiment has the positioning member 470, and the outer surface of the positioning member 470 has a protrusion, the numerical relationship of the distance P from the rotation axis of the photosensitive drum to the end of the exposed protrusion 471a is satisfied. Let me repeat.
  • the process cartridge of the present invention can drive the rotating parts such as the photosensitive drum, the developing roller, and the stirring frame to rotate only by the coupling of the convex part of the power receiving part and the power output part, and compared with the prior art, it reduces the manufacturing cost of the process cartridge. Accuracy, while also reducing the required assembly accuracy of the process box, greatly improving the coupling accuracy of the power output member and the process box.

Abstract

一种可拆卸的安装至电子照相成像装置中的处理盒(150),处理盒(150)包括:壳体(140);动力接收件(148),包括接收用于旋转感光鼓(149)的驱动力的动力接收件凸部(141);显影辊齿轮(143),可接收来自动力接收件凸部(141)的驱动力而旋转;调节部(160),设置在处理盒(150)的端部,用于限制电子照相成像装置中的动力输出件(10)的移动,调节部(160)和壳体(140)之间形成有可与电子照相成像装置中的定位肋(21)配合以限制处理盒(150)在左右方向上移动的定位槽(171)。相比于现有技术,降低了处理盒(150)制造和组装所需的精度。

Description

一种处理盒 技术领域
本发明涉及电子照相成像技术领域,尤其涉及一种处理盒。
背景技术
现有技术中公开了一种电子照相成像装置以及一种安装在该电子照相成像装置中的处理盒,电子照相成像装置包括可输出动力的动力输出件,动力输出件包括构造为凹部的动力输出件凹部以及构造为斜齿的动力输出件齿轮齿。现有的处理盒包括构造为凸部的动力接收件凸部以及安装在显影辊轴向一端的显影辊齿轮,当处理盒安装在电子照相成像装置中时,动力接收件凸部可与动力输出件凹部啮合而接收驱动力,而显影辊齿轮可与动力输出件齿轮齿啮合而接收驱动力,二者共同驱动处理盒。
虽然上述处理盒可接收电子照相成像装置的驱动力,但是由于上述处理盒的动力接收件凸部与显影辊齿轮需分别与动力输出件凹部和动力输出件齿轮齿啮合,才能保证处理盒的正常工作,其要求动力接收件凸部与显影辊齿轮在处理盒中的相对位置精度变得更高,也就会使得处理盒与电子照相成像装置的配合精度要求变高,以及处理盒的制造精度和组装精度要求变得更高,其极易在处理盒的安装过程中使得处理盒与电子照相成像装置发生干涉,使处理盒的装机变得困难,不仅如此,也易在处理盒与电子照相成像装置的啮合过程中因误差的存在而出现难以啮合的问题。
发明内容
为解决现有技术中存在的问题,本发明提供了一种新的处理盒,主要是通过以下技术方案来实现的:
一种处理盒,可拆卸的安装至电子照相成像装置中,所述电子照相成像装置设置有包含动力输出件齿轮齿和动力输出件凹部的动力输出件,所述处理盒包括:
壳体;
感光鼓,可绕沿左右方向延伸的感光鼓轴线旋转;
动力接收件,所述动力接收件设置在所述感光鼓的端部并包括用于从所述处理盒的外部接收用于旋转所述感光鼓的驱动力的动力接收件凸部;
显影辊;
显影辊齿轮,设置在所述显影辊的端部,可接收来自所述动力接收件凸部的驱动力而旋转;
还包括调节部,设置在所述处理盒的端部,所述调节部用于限制所述动力输出件的移动从而限制所述动力输出件的倾斜角度,所述调节部和所述壳体之间形成有可与所述电子照相成像装置中的定位肋配合以限制所述处理盒在左右方向上的移动的定位槽。
优选的,所述动力接收件凸部的末端设置有第一导向部,所述第一导向部在左右方向上具有宽度M1,所述宽度M1满足:0.2mm≦M1≦1mm。
优选的,所述动力接收件凸部在左右方向上具有长度M2,所述宽度M1和所述长度M2满足:1/15≦M1/M2≦5/15。
优选的,所述动力输出件凹部在旋转一周所描绘的轨迹路径S1的最大直径为D1,所述动力接收件凸部在旋转一周所描述的轨迹路径S2的最大直径为D2,所述D1和D2满足:2.4mm≦D1-D2≦3mm。
优选的,所述显影辊齿轮包括显影辊大径齿轮部和显影辊小径齿轮部,所述动力接收件还包括动力接收件齿轮,所述显影辊大径齿轮部和所述动力接收件齿轮啮合并构造为斜齿轮,所述显影辊小径齿轮部构造为直齿轮。
优选的,还包括安装在所述壳体右端的护盖,所述护盖上设置有用于支撑所述显影辊的第一轴承部,在左右方向上,所述第一轴承部的至少一部分与所述调节部具有重叠部分。
优选的,所述壳体右端部设置有壳体轴承孔,所述动力接收件具有动力接收件被支撑部,所述动力接收件被支撑部可被所述壳体轴承孔支撑,所述动力接收件被支撑部的外周表面具有外径D4,所述壳体轴承孔具有内径D5,所述D4和所述D5满足:0.2mm≦D5-D4≦1.5mm。
优选的,所述动力接收件具有动力接收件齿轮,所述动力接收件齿轮的内表面设置有动力接收件齿轮轴承孔,所述动力接收件齿轮轴承孔的内径为D6,所述D6和所述D4满足:0.2mm≦D6-D4≦1.5mm。
优选的,所述处理盒包括从所述壳体的右端面向内凹陷形成的避让部,所述避让部可容纳所述动力输出件齿轮齿的至少一部分,当所述动力接收凸部和 所述所述动力输出件凹部啮合时,所述处理盒不与所述动力输出件齿轮齿接触。
本发明的处理盒仅依靠动力接收件凸部与动力输出件的耦合,就可驱动感光鼓、显影辊等旋转件旋转,相比于现有技术,降低了处理盒制造所需的精度,同时也降低了处理盒所需的组装精度,大大提高了动力输出件与处理盒耦合的准确性。
附图说明
图1是本发明实施例1中门盖处于打开位置时电子照相成像装置示意图;
图2是本发明实施例1中凸轮构件示意图;
图3是本发明实施例1中与凸轮构件配合的侧板示意图;
图4是本发明实施例1中凸轮构件与侧板配合示意图;
图5是本发明实施例1中门盖处于关闭位置时电子照相成像装置示意图;
图6是本发明实施例1中处理盒安装至电子照相成像装置的过程中某一角度示意图;
图7是本发明实施例1中处理盒安装至电子照相成像装置的过程中另一角度示意图;
图8是本发明实施例1中动力输出件处于缩进位置时示意图;
图9是本发明实施例1中动力输出件处于伸出位置时示意图;
图10是本发明实施例1中处理盒某一角度示意图;
图11是本发明实施例1中处理盒剖视示意图;
图12是本发明实施例1中处理盒的动力接收组件某一角度示意图;
图13是本发明实施例1中处理盒的动力接收组件分解示意图;
图14是本发明实施例1中处理盒的动力接收组件另一角度示意图;
图15是本发明实施例1中处理盒安装至电子照相成像装置的过程中再一角度示意图;
图16是本发明实施例1中图17中T的局部放大示意图;
图17是本发明实施例1中处理盒右端某一角度局部示意图;
图18是本发明实施例1中从右向左观察时处理盒示意图;
图19是本发明实施例1中第二预啮合定位部剖视示意图;
图20是本发明实施例1中动力接收件示意图;
图21是本发明实施例1中被驱动前的动力输出件与动力接收件的位置关系示意图;
图22是本发明实施例1中被驱动后的动力输出件与动力接收件的位置关系示意图;
图23是本发明实施例1中动力输出件凹部和动力接收件凸部的示意图;
图24是本发明实施例1中动力输出件凹部和动力接收件凸部配合的示意图;
图25是本发明实施例1中处理盒右端的另一角度局部示意图;
图26是本发明实施例2中处理盒示意图;
图27是本发明实施例2中护盖从处理盒中分解出来后处理盒分解示意图;
图28是本发明实施例2中动力接收组件分解后处理盒某一角度分解示意图;
图29是本发明实施例2中动力接收组件分解后处理盒另一角度分解示意图;
图30是本发明实施例2中处理盒右端局部示意图;
图31是本发明实施例3中感光鼓端部的动力接收件分解示意图;
图32是本发明实施例3中感光鼓端部处剖视示意图;
图33是本发明实施例3中动力接收件凸部位于非驱动位置时某一角度示意图;
图34是本发明实施例3中动力接收件凸部位于驱动位置时某一角度示意图;
图35是本发明实施例3中动力接收件凸部位于非驱动位置时另一角度示意图;
图36是本发明实施例3中动力接收件凸部位于驱动位置时另一角度示意图;
图37是本发明实施例3中动力接收件凸部位于伸出位置时某一角度示意图;
图38是本发明实施例3中动力接收件凸部位于缩进位置时某一角度示意图;
图39是本发明实施例3中动力接收件凸部位于伸出位置时另一角度剖视示意图;
图40是本发明实施例3中动力接收件凸部位于缩进位置时另一角度剖视示意图;
图41是本发明实施例3中动力接收件被支撑部和动力接收件齿轮从壳体中分解出来的分解示意图;
图42是本发明实施例3中动力接收件被支撑部与动力接收件齿轮轴承孔和壳体轴承孔之间的配合关系示意图;
图43是本发明实施例4中处理盒示意图;
图44是本发明实施例4中处理盒分解示意图;
图45是本发明实施例5中处理盒立体示意图;
图46是本发明实施例5中处理盒右端局部示意图;
图47是本发明实施例5中护盖从处理盒中拆卸下来处理盒示意图;
图48是本发明实施例5中动力接收组件分解出来的处理盒某一角度示意图;
图49是本发明实施例5中动力接收组件分解出来的处理盒另一角度示意图;
图50是本发明实施例5中电极和定位件安装在护盖上的某一角度示意图;
图51是本发明实施例5中定位件从护盖上拆卸下来的示意图;
图52是本发明实施例5中定位件和电极从护盖上拆卸下来的示意图;
图53是本发明实施例5中电极和定位件安装在护盖上的另一角度示意图;
图54是本发明实施例5中电极、定位件和感光鼓安装在护盖上剖视示意图;
图55是本发明实施例6中第一种阻尼结构示意图;
图56是本发明实施例6中第二种阻尼结构示意图;
图57是本发明实施例6中第三种阻尼结构示意图;
图58是本发明实施例6中第三种阻尼结构分解示意图;
图59是本发明实施例6中第四种阻尼结构示意图;
图60是本发明实施例6中第四种阻尼结构分解示意图;
图61是本发明实施例6中第五种阻尼结构分解示意图;
图62是本发明实施例7中处理盒某一角度示意图;
图63是本发明实施例7中处理盒另一角度示意图;
图64是本发明实施例7中显影辊齿轮和定位件位置关系示意图;
图65是本发明实施例7中定位件与动力输出件齿轮齿啮合时示意图。
图66是本发明实施例8中处理盒安装至电子照相成像装置的过程中示意图;
图67是本发明实施例8中图61中A的局部放大示意图;
图68是本发明实施例8中处理盒示意图;
图69是本发明实施例8中处理盒分解示意图;
图70是本发明实施例9中定位件安装在护盖上与感光鼓位置关系示意图。
具体实施方式
实施例1
在以下描述中,把手138和感光鼓149在处理盒150的前后方向上布置,感 光鼓149在前后方向上把手138的前侧,感光鼓149可绕在左右方向(下文中也称之为轴向方向)延伸的感光鼓旋转轴线旋转,动力接收件148在左右方向上设置在处理盒150的右侧。
【电子照相成像装置的整体结构】
如图1-10所示,电子照相成像装置包括安装口50、门盖13,门盖13具有未覆盖安装口50的打开位置和覆盖安装口50的关闭位置,以及分别设置在电子照相成像装置左右两端的一对侧板20,一对侧板20之间形成有能容纳处理盒150的容纳部30,当门盖13处于打开位置下,处理盒150可沿安装口50沿从后向前的方向按照预定的轨道安装至电子照相成像装置中的容纳部30中。
电子照相成像装置还包括凸轮构件86、支撑在凸轮构件86上的并能输出动力的动力输出件10以及连接在动力输出件10上的第一弹性部件15,其中,上述的凸轮构件86通过连杆构件85与门盖13可操作的连接,当门盖13由关闭位置移动至打开位置时,在连杆构件85和凸轮构件86的控制下,动力输出件10可克服第一弹性部件15的弹性力而由伸出位置移动至缩进位置,并可使得动力输出件10与处理盒150脱离耦合,处于缩进位置下的动力输出件10相对于处于伸出位置下的动力输出件10在左右方向上更加远离处理盒150,当门盖13由打开位置移动至关闭位置时,因被压缩的第一弹性部件15产生的弹性力被释放而推动动力输出件10由缩进位置移动至伸出位置,具体的来说,凸轮构件86具有为圆环的基本构造,凸轮构件86包括大体构造为圆环的凸轮构件主体部86c,以及设置在凸轮构件主体部86c上的一对第一倾斜表面86a、86b,第一倾斜表面86a、86b在凸轮构件主体部86c的圆周方向上间隔的设置在凸轮构件主体部86c上,右侧的侧板20上形成有可与一对第一倾斜表面86a、86b配合的一对第二倾斜表面15d、15e,第二倾斜表面15d、15e形成在侧板20的侧板主体部15f上,凸轮构件86在门盖13和连杆构件85的控制下,可通过第一倾斜表面86a、86b和第二倾斜表面15d、15e的配合而能在靠近侧板20和远离侧板20的位置之间移动,从而使得支撑在凸轮构件86上的动力输出件10被带动而在靠近侧板20和远离侧板20的位置之间移动,即使得动力输出件10在左右方向上能在伸出位置和缩进位置之间移动;而上述的动力输出件10可作为驱动部件驱动处理盒150中的旋转件旋转,动力输出件10包括具有构造为凹部的动力输出件凹部 12以及构造为斜齿的动力输出件齿轮齿11,动力输出件凹部12具有大致为等边三角形的形状,但并不是严格的等边三角形而是其三个顶点(或角部)被斜切成弧形的构造;当门盖13由打开位置移动至关闭位置时,可能会因第一弹性部件15的疲劳而失效或者其它原因,使得第一弹性部件15因被压缩产生的弹性力无法充分迫使或不迫使动力输出件10由缩进位置移动至伸出位置,这时,为避免该情况的发生,电子照相成像装置还包括可沿顺时针方向旋转并与动力输出件10的动力输出件齿轮部9啮合的的驱动齿轮1,驱动齿轮1同样构造为具有斜齿,并且,由于驱动齿轮1的斜齿部分具有向左的扭曲方向,动力输出件10的动力输出件齿轮部9具有向右的扭曲方向,这时,随着电子照相成像装置的启动,具有构造为斜齿部分的驱动齿轮1会驱动同样构造为斜齿的动力输出件齿轮部9,并因二者啮合而产生一个在左右方向上靠近处理盒150的轴向力,而迫使动力输出件10从缩进位置移动至伸出位置,也就是说,电子照相成像装置不仅可通过门盖13、连杆构件85、凸轮构件86的配合迫使动力输出件10由缩进位置移动至伸出位置,也可通过驱动齿轮1与动力输出件10的啮合产生的轴向力迫使动力输出件10由缩进位置移动至伸出位置,使得动力输出件10的伸出概率进一步的加大。
【处理盒】
如图1-25所示,接下来将详细介绍本发明中的处理盒150,处理盒150可拆卸的安装在上述电子照相成像装置中,处理盒150包括可容纳显影剂的壳体140,把手138,以及可旋转的支撑在壳体140上的感光鼓149和可旋转的支撑在壳体140上的显影辊139,把手138和感光鼓149在处理盒150的前后方向上布置,感光鼓149在前后方向上把手138的前侧,并且,感光鼓149可绕沿左右方向延伸的感光鼓旋转轴线旋转,而显影辊139可绕沿左右方向延伸的显影辊旋转轴线旋转,处理盒150还包括至少一部分设置在壳体140内部的可旋转的搅拌架132,搅拌架132可用于搅拌壳体140内容纳的显影剂以将显影剂输送至显影辊139上,显影辊139上承载的显影剂可输送至感光鼓149上而用于显影感光鼓149上的静电潜像。
处理盒150还包括可用于驱动上述显影辊139、感光鼓149以及搅拌架132旋转的动力接收组件,动力接收组件设置在处理盒150的右端,动力接收组件包 括安装在感光鼓149右端的动力接收件148,动力接收件148包括一体成型的动力接收件凸部141和动力接收件齿轮142,但这不是限制性的,动力接收件148也可以是由分体成型的动力接收件凸部141和动力接收件齿轮142组合而成,其中,动力接收件件凸部141具有大致为等边三角形的形状,但也并不是严格的等边三角形而是其三个顶点(或角部)被斜切成弧形的构造,并且动力接收件凸部141可与处于伸出位置的动力输出件凹部12耦合而被驱动旋转,从而可驱动感光鼓149旋转;不仅如此,动力接收组件还包括安装在显影辊139右端的显影辊齿轮143,显影辊齿轮143与动力接收件齿轮142相互啮合并能接收来自动力接收件齿轮142的驱动力,而能驱动显影辊139旋转,动力接收组件还包括安装在搅拌架132右端的搅拌架齿轮146,其中,显影辊齿轮143和搅拌架齿轮146之间还连接有相互啮合的第一中间传递齿轮144和第二中间传递齿轮145,显影辊齿轮143可将从动力接收件齿轮142接收到的动力通过第一中间传递齿轮144和第二中间传递齿轮145传递至搅拌架齿轮146上,从而通过搅拌架齿轮146的旋转驱动搅拌架132旋转,也就是说,处理盒150仅通过动力接收件凸部141与动力输出件凹部12的耦合就能驱动感光鼓149、显影辊139、搅拌架132旋转,相比于现有技术,其简化了处理盒150结构,降低了处理盒150所需的制造和组装精度。
处理盒150还包括一个在左右方向上形成在壳体140右端面和动力接收件148之间的避让部166,或者说,壳体140右端面、调节部160(后文将详细介绍)、动力接收件148之间形成有避让部166,换句话说,避让部166是从壳体140的右端面向内凹陷形成的,该避让部166在前后方向上相对于处理盒150的后端设置在更靠近处理盒150的前端的位置上,避让部166构造为可避让动力输出件10的自由端,使得处理盒150不会与动力输出件齿轮齿11发生接触或干涉,换句话说,避让部166形成有避让空间,在该避让空间内,处理盒150中没有部件会与动力输出件齿轮齿11发生接触或干涉;进一步的,从处理盒150的右端向左端观察,在避让部166中以动力接收件148的旋转中心为圆心,形成有一虚拟圆P,该虚拟圆P的直径为D3,为确保动力输出件齿轮齿11在避让部166内不与其它部件接触或干涉,虚拟圆P的直径至少应大于动力输出件齿轮齿11的最大外形尺寸,即D3>25.3mm。
从前述的描述中可知,动力接收件凸部141作为本实施例处理盒150中唯一的从外部接收驱动力的动力源,其与动力输出件10的耦合成功与否至关重要,由于动力输出件10在与左右方向垂直的径向方向上并不是完全被固定的,其在重力作用下或被驱动齿轮1驱动旋转的过程中会有轻微的径向摆动量,故动力输出件10在伸出过程中有很大几率并不以其旋转轴线与动力接收件凸部141的旋转轴线完全重合的状态伸出,其会使得动力输出件10以其旋转轴线相对于动力接收件凸部141的旋转轴线倾斜一定角度的状态伸出,那么当动力输出件10以此种状态伸出时,动力输出件凹部12可能会与动力接收件凸部141发生轴向干涉而使得难以与动力接收件凸部141耦合甚至不能完成耦合,所以,为避免此种情况的发生,在不改变现有电子照相成像装置的结构基础上,一方面,动力接收件凸部141的自由端(即右端部)设置有可用于导向动力输出件凹部12与动力接收件凸部141耦合的第一导向部169,第一导向部169形成在动力接收件凸部141自由端的等边三角形的三条边上,优选的,第一导向部169为相对于左右方向倾斜的斜面,在动力输出件10的具体伸出过程中,若动力输出件10的旋转轴线与动力接收件148的旋转轴线不重合而致使动力输出件凹部12无法完全对准动力接收件凸部141耦合时,这时,动力输出件凹部12的外边缘可与上述的第一导向部169接触并被第一导向部169导向至二者旋转轴线重合的位置,这时,动力输出件凹部12可与动力接收件凸部141成功耦合,提高了二者的耦合成功率,可选择的是,也可以是弧面或异形面等结构;进一步的,为了使得第一导向部169能对动力输出件凹部12进行更好的导向,第一导向部169不应设置的过小而无法起到较好的导向作用,但同时,也为了使动力输出件凹部12与动力接收件凸部141的轴向耦合量足够的多,二者在左右方向上应具有足够的耦合量,为了兼顾上述两方面,第一导向部169应具有合理的大小,具体的来说,第一导向部169在左右方向上具有宽度M1,优选的,0.2mm≦M1≦1mm,更优选的是,M1优选为0.3mm,并且动力接收件凸部141的高度(即动力接收件凸部141在左右方向上的长度)为M2,其中,1/15≦M1/M2≦5/15,在该范围内,动力接收件凸部141不仅可通过第一导向部169的设置对动力输出件凹部12进行可靠的导向,也使得二者在耦合时具有足够的耦合量而能保持稳定的耦合,其进一步的提高了动力输出件凹部12和动力接收件凸部141的耦合成功率。
另一方面,处理盒150还设置有调节部160,调节部160设置在壳体140的右端部,并构造为从壳体140的右端部上沿垂直于左右方向的方向上突出的肋,调节部160和壳体140之间形成有第一定位槽171,如图15-16所示,在处理盒150安装至电子照相成像装置的过程中,形成于侧板20上的定位肋21可插入至第一定位槽171中,从而能限制处理盒150在左右方向上的移动;并且该调节部160还具有一个面向感光鼓旋转轴线的调节部分162,调节部分162具有近似于圆弧曲面的基本构造,但也可被视为突出成覆盖感光鼓旋转轴线的突出部分,该调节部分162可用于将动力输出件10的倾斜限制在一定范围内,也就是说,当动力输出件10在伸出过程中相对于左右方向发生一定程度的倾斜时,调节部分162可阻挡并限制动力输出件10,由此抑制其倾斜角度的增加,基于此,动力输出件凹部12和动力接收件凸部141的耦合成功率被进一步的提高,在下文中,该调节部分162也可称之为处理盒150的第一预啮合定位部;不仅如此,处理盒150还设置有第二预啮合定位部,第二预啮合定位部包括定位凹部164,定位凹部164是形成在壳体140右端部上的凹部,并且定位凹部164在自身圆周方向上围绕着动力接收件凸起141设置,并在平行于左右方向的方向上延伸,换句话说,动力接收件凸部141的至少一部分容纳在该定位凹部164中,在动力输出件10由缩进位置移动至伸出位置的过程中,动力输出件10的自由端可逐渐进入定位凹部164中而使得动力输出件凹部12与动力接收件凸部141完成耦合,定位凹部164可用于在与左右方向垂直的方向上对动力输出件10的自由端进行限制定位,使得动力输出件10的自由端能按照预定的移动方向进行移动以提高动力输出件凹部12与动力接收件凸部141的耦合成功率,避免了动力输出件10的自由端发生较大幅度的摆动而出现难以与动力接收件凸部141耦合的问题,也避免了在二者已经处于相互耦合的状态中动力输出件10的自由端发生较大幅度的摆动而造成动力传递不稳定的问题,并且,在定位凹部164的底部末端还具有凹底面165,当处理盒150安装在电子照相成像装置中,动力接收件凸部141吸引的动力输出件凹部12通过动力输出件10的自由端接触凹底面165,而在左右方向上(轴向方向)上对动力输出件10的自由端进行定位,以限制动力输出件10的进一步的向左移动。进一步的,第二预啮合定位部还包括第二导向部163,第二导向部163连接在定位凹部164的右端部处(即定位凹部164的开口处),第二导 向部163具有喇叭口状的基本构造,具体的来说,第二导向部163具有在左右方向上更靠近凹底面165的小径部分167以及更远离凹底面165的大径部分168,优选的,第二导向部163构造为相对于左右方向倾斜的倾斜面,在动力输出件10由缩进位置移动至伸出位置的过程中,当动力输出件10未以预定的移动方向移动而出现轻微径向偏移时,动力输出件10自由端的外周面通过接触第二导向部163而能被第二导向部163导向安装至定位凹部164中,更进一步的提高了动力输出件凹部12与动力接收件凸部141的耦合成功率,可选择的是,第二导向部163也可以是弧形曲面或异形面等结构;进一步的,为了使得第二导向部163能对动力输出件10进行更好的导向,第二导向部163也应具有合适的尺寸,同时也为了使动力输出件10的自由端进入定位凹部164的足够多,使得二者在左右方向上具有足够的耦合量,因为过少的接合量易使得动力输出件10出现定位不稳定的问题,为尽可能地避免出现上述问题,第二导向部163在左右方向上的宽度为K1,K1优选为0.7mm,换句话说,第二导向部163是构造为0.7mm*0.7mm的C角,可选择的是,也可是圆弧倒角,而第二导向部163的右端部(即大径部分168)至凹底面165在左右方向上的距离为K2(该距离即为定位凹部164的深度),其中,1/10≦K1/K2≦1/3,当K1和K2的比值在此范围内时,第二导向部163不仅能稳定的对动力输出件10进行导向,也能使得动力输出件10的自由端与定位凹部164的接合量变得足够多,使得二者在耦合的过程中变得更加稳定。
再一方面,处理盒150除采取上述抑制动力输出件10的倾斜摆动量和动力输出件10倾斜后设置有导向部的方式外,为了更进一步的提高动力输出件凹部12与动力接收件凸部141的耦合成功率,在电子照相成像装置的动力输出件凹部12的尺寸无法被改变或难以改变的情况下,还可以通过改变动力接收件凸部141的外形尺寸大小来提高二者的耦合成功率,具体的来说,如图23-24所示,动力输出件凹部12在动力输出件10旋转一周所描绘的轨迹路径S1的最大直径为D1,即动力输出件凹部12的外接圆的直径为D1,而动力接收件凸部141在旋转一周所描述的轨迹路径S2的最大直径为D2,即动力接收件凸部141的外接圆的直径为D2,其中,当D1-D2大于等于2.4mm,小于等于3mm,即2.4mm≦D1-D2≦3mm时,二者相互耦合可容许的最小外形尺寸之差为2.4mm,最大 外形尺寸之差为3mm,通过此结构,动力输出件10在伸出过程中,外形尺寸稍大的动力输出件凹部12可与外形尺寸稍小的动力接收件凸部141耦合,二者在耦合后因为具有合理间隙余量,即使动力输出件10在伸出过程中发生一定角度的径向偏摆,导致动力输出件10的旋转轴线与动力接收件148的旋转轴线不重合,那么通过设置有相对于动力输出件凹部12的外形尺寸稍小的动力接收件凸部141,二者因为具有一定的间隙余量而能使动力接收件凸部141也可与偏摆后的动力输出件凹部12完成耦合,极大地提高了二者的耦合成功率,但是若D1与D2之间的差值过小,即小于等于2.4mm,那么二者依然可能会因外形尺寸相差过小导致两者的间隙余量过小而发生轴向干涉,进而出现难以耦合甚至无法耦合的问题,若D1与D2之间的差值过大,那么即使动力接收件凸部141与动力输出件凹部12完成轴向耦合,也可能会因为径向耦合量的不足而出现打滑,进而无法稳定的驱动动力接收件凸部141旋转;进一步的,优选为2.6mm≦D1-D2≦2.8mm,在满足上述关系下,动力接收件凸部141处于一个能与动力输出件凹部12耦合的最佳位置。
还一方面,在处理盒150安装在电子照相成像装置中且动力输出件10暂未被驱动而伸出时,沿着处理盒150的安装方向投影,处理盒150的动力接收件凸部141与动力输出件10的动力输出件凹部12的间隔距离为L2,该间隔距离L2在下文中称之为第二距离L2,并且,由于动力输出件10可被驱动齿轮1或凸轮构件86驱动并移动一段距离L1,该移动的距离L1在下文中称之为为第一距离L1,基于此,为确保动力输出件凹部12能与动力接收件凸部141进行轴向耦合,那么第一距离L1就需大于第二距离L2,即L1>L2,以确保移动L1距离的动力输出件凹部12能与动力接收件凸部141耦合。但是考虑到动力接收件凸部141安装在感光鼓149上,而感光鼓149是以间隙配合的方式安装在壳体140中,这就使得感光鼓149可能会因装配误差或在旋转过程中发生左右移位,故为更进一步地提高动力输出件凹部12与动力接收件凸部141的耦合成功率以及耦合稳定性,在处理盒150安装在电子照相成像装置中,且动力输出件10未被驱动伸出时,在确保L1>L2的前提下,动力接收件凸部141在左右方向上距离动力输出件凹部12应当具有合理的距离范围,在以调节部160的左端面为基准面的情况下,如图25所示,动力接收件凸部141的右端面距离调节部160的左端面的距 离L3应当大于等于3mm,小于等于4.3mm,即3mm≦L3≦4.3mm,在该范围内,动力接收件凸部141可在动力输出件10的伸出过程中成功的与动力输出件凹部12耦合,若L3小于3mm,即动力接收件凸部141在左右方向上更进一步的靠近动力输出件10,这时,处理盒150在安装至电子照相成像装置的过程中,动力接收件凸部141将会与动力输出件10在处理盒150的安装方向上发生干涉,进而导致处理盒150无法成功地安装至电子照相成像装置中,但是,若L3大于4.3mm,即动力接收件凸部141在左右方向上更进一步远离动力输出件10,这时,动力接收件凸部141因距离动力输出件凹部12过远则会有几率与伸出后的动力输出件凹部12轴向耦合量过少出现打滑的现象甚至是耦合不上,对此,这两种情况显然是不愿意看到的。更进一步的,优选为3.5mm≦L3≦4mm,在此位置下,动力接收件凸部141处于一个能与动力输出件凹部12耦合的最佳位置。
实施例2
如图26-30所示,接下来将介绍本发明的实施例2,区别于上述实施例中的显影辊齿轮,本实施例中的显影辊齿轮243为双联齿轮,即显影辊齿轮243包括显影辊大径齿轮部243a和显影辊小径齿轮部243b,其中,显影辊小径齿轮部243b相对于显影辊大径齿轮部243a在左右方向上更靠近处理盒250的右端,其中,显影辊大径齿轮部243a可与动力接收件齿轮242啮合而接收驱动力;进一步的,显影辊大径齿轮部243a构造为斜齿,而显影辊小径齿轮部243b则采用了区别于斜齿的直齿构造,显影辊齿轮243由斜齿变为直齿,下游的至少部分齿轮则也采用直齿齿轮,显著降低了齿轮的制造精度和生产成本,也更好的通用于市面上的直齿轮,进一步地降低了生产成本。沿着驱动力传递的方向,与显影辊小径齿轮部243b啮合的则是第一中间传递齿轮244,与第一中间传递齿轮244啮合的则是第二中间传递齿轮245,与第二中间传递齿轮245啮合的则是搅拌架齿轮246,也就是说,显影辊齿轮243在接收到动力接收件齿轮242的驱动力后,也是通过第一中间传递齿轮244、第二中间传递齿轮245将驱动力传递至搅拌架齿轮246上的,并且第一中间传递齿轮244、第二中间传递齿轮245同样均构造为双联齿轮,具体的来说,第一中间传递齿轮244包括第一中间传递大径齿轮部244a和第一中间传递小径齿轮部244b,在左右方向上,第一中间传递大径齿轮部244a相对于第一中间传递小径齿轮部244b设置在更靠近处理盒250的右端,即第一 中间传递大径齿轮部244a设置在第一中间传递小径齿轮部244b的外侧;同样的,第二中间传递齿轮245包括第二中间传递大径齿轮部245a和第二中间传递小径齿轮部245b,在左右方向上,第二中间传递大径齿轮部245a相对于第二中间传递小径齿轮部245b设置在更靠近处理盒250的右端,即第二中间传递大径齿轮部245a设置在第二中间传递小径齿轮部245b的外侧,该种设置使得处理盒250的齿轮排布更加紧凑,有利于处理盒的小型化。
不仅如此,处理盒250还包括安装在壳体240右端的护盖230,护盖230可用于覆盖处理盒250的动力接收组件,在护盖230上还设置有用于支撑显影辊239的第一轴承部231,第一轴承部231构造为中空的圆柱形突起,其中,在左右方向上,第一轴承部231的至少一部分与调节部260和避让部266具有重叠部分,处理盒250通过上述方式布置后,其提高了处理盒250在左右方向上的空间利用率,使得处理盒的结构更加紧凑,有利于处理盒的小型化;具体的来说,显影辊239的右端部可旋转的支撑在上述第一轴承部231的中空部中以被第一轴承部231支撑,从而使得显影辊239被第一轴承部231定位,进一步的,由于显影辊239的右端部与第一轴承部231是可旋转的接触,故第一轴承部231需要良好的耐磨性和润滑性,通常,护盖230所选用的材质难以满足其要求,故优选的是,第一轴承部231与护盖230是分体制造的,也就是说,第一轴承部231可拆卸的安装在护盖230上,二者可分别采用不同的材质制造以此来满足第一轴承部231所需的耐磨、润滑的要求;更进一步的,第一轴承部231为导电轴承,其采用导电材料制成,也就是说,第一轴承部231既可作为轴承部件支撑显影辊239,也可作为电极部件给显影辊239传递电力,使得处理盒250无需额外再设置电极,简化了处理盒的结构,降低了生产成本。可选择性的,也可将第一轴承部231作为护盖230的一部分,即第一轴承部231与护盖230是一体成型,当第一轴承部231和护盖230采用一体成型工艺时,可以避免上述将第一轴承部231安装在护盖230上的装配误差,提高产品的精度和稳定性。
实施例3
如图31-42所示,接下来将介绍本发明的实施例3,在本实施例中,动力接收件凸部341依旧设置在动力接收件被支撑部351的右端部上,但是,动力接收件被支撑部351是可拆卸的安装在动力接收件齿轮342上的,也就是说,动力接 收件凸部341和动力接收件齿轮342不再是和上述实施例1或2中采用一体成型制造的工艺,在本实施例中,二者为分体制造;进一步的,处理盒350还包括构造为弹簧但不限于弹簧的第一保持件381,第一保持件381抵接在动力接收件被支撑部351和动力接收件齿轮342之间,当动力接收件凸部341未受到处理盒350外部的按压力时,如图37和图39所示,动力接收件凸部341被第一保持件381产生的保持力保持在伸出位置,当动力接收件凸部341受到处理盒350外部的按压力后,如图38和图40所示,动力接收件被支撑部351可克服第一保持件381产生的保持力而迫使动力接收件凸部341向内缩进一段距离,这时,动力接收件凸部341位于缩进位置,动力接收件凸部341位于缩进位置相对于位于伸出位置时在左右方向上至少部分更远离动力接收件齿轮342,也就是说,动力接收件凸部341可在左右方向上在更远离动力接收件齿轮342的伸出位置和更靠近动力接收件齿轮342的缩进位置之间移动,并且,即使动力接收件凸部341被按压后位于缩进位置,也可在处理盒350的外部按压力从动力接收件凸部341撤去后在第一保持件381产生的保持力作用下复位至伸出位置;当动力接收件凸部341处于伸出位置时,动力接收件凸部341的右端面距离调节部360的左端面360a的距离为H1,当3mm≦H1≦4.5mm,在该范围内,动力接收件凸部341与动力输出件凹部12距离适当而具有与动力输出件凹部12最佳的耦合效果,若H1小于3mm,动力接收件凸部341则可能会在处理盒350安装至电子照相成像装置过程中与电子照相成像装置发生干涉,而导致处理盒350出现无法安装至电子照相成像装置中的问题,若H1大于4.5mm,则可能会因离动力输出件凹部12过远而无法与动力输出件凹部12耦合;进一步的,由于动力接收件凸部341在左右方向上可伸缩而使其具有一定的伸缩量W,优选的,0.5mm≦W≦3.5mm,该伸缩量可用于补偿因动力接收件凸部341的制造误差或安装误差引起的动力接收件凸部341在左右方向上处于偏离正确位置的偏离距离,相比于前述实施例1或2中的显影盒更进一步的提高了动力接收件凸部341与动力输出件凹部12的耦合成功率,当W过小则可能会出现动力接收件凸部341因偏离距离过大而导致动力接收件凸部341的伸缩量补偿距离不足的问题,当W过大则会使得动力接收件凸部341因伸缩行程过大而占用过多的处理盒350内部空间,不利于处理盒的小型化趋势;进一步的,动力接收件被支撑部351的左端部上还设置有防脱 部353,防脱部353在左右方向上位于动力接收件齿轮342的左侧,通过与动力接收件齿轮342的抵接而可用于限制动力接收件被支撑部351在左右方向上位置,避免动力接收件被支撑部351以及设置在动力接收件被支撑部351上的动力接收件凸部341从动力接收件齿轮342上脱出,在一些实施例中,防脱部353构造为沿动力接收件被支撑部351的径向方向向外突出的突起,,更进一步的,防脱部353优选为结构简单、连接性能稳定的弹性扣,可选择的是,防脱部353也可构造为卡簧卡接在动力接收件被支撑部351上的结构,这并不是限定的。本实施例中的处理盒350将动力接收件凸部341设置成可伸缩移动的结构,在动力输出件10与动力接收件凸部341耦合的过程中,可伸缩移动的动力接收件凸部341可用于补偿因动力接收件凸部341产生的制造或组装误差,并可在误差允许范围内自适应的与动力输出件10耦合,所以,可伸缩移动的动力接收件凸部341不但降低了动力接收件凸部341的制造所需精度,也进一步的提高了二者的耦合成功率。
为更进一步的提高动力输出件10与动力接收件凸部341的耦合成功率,处理盒350还设置有在动力接收件凸部341接收到处理盒350外部的旋转驱动力后可延时驱动感光鼓349旋转的延时机构,具体的来说,在动力接收件被支撑部351的外圆周表面上设置有推动部352,推动部352构造为在动力接收件被支撑部351的圆周方向上延伸的弧形突起,推动部352包括第一推动部352a和第二推动部352b,第一推动部352a和第二推动部352b是在动力接收件被支撑部351的旋转方向上分别形成在推动部352两个自由末端的部分,在动力接收件被支撑部351的旋转方向上,第一推动部352a设置在第二推动部352b的上游,作为对应的,动力接收件齿轮342的内表面上形成有一对被推动部,即在动力接收件齿轮342的旋转方向上间隔布置的第一被推动部342a和第二被推动部342b,第一被推动部342a和第二被推动部342b均构造为从动力接收件齿轮342的内表面上突出的肋,在动力接收件凸部341未受到处理盒350外部的旋转驱动力驱动,如图33和图35所示,第一推动部352a与第一被推动部342a抵接,而第二推动部352b则与第二被推动部342b在动力接收件凸部341的旋转方向上间隔开,此时,动力接收件凸部341处于一个第二推动部352a不能驱动动力接收件齿轮342旋转的非驱动位置;在动力接收件凸部341受到处理盒350外部的旋转驱动力驱动 且感光鼓349被驱动旋转时,如图34和图36所示,第一推动部352a与第一被推动部342a在动力接收件凸部341的旋转方向上间隔开,而第二推动部352b则与第二被推动部342b保持抵接并可推动第二被推动部342b,使得动力接收件齿轮342和连接在动力接收件齿轮342上的感光鼓349被驱动旋转,此时,动力接收件凸部341处于一个第二推动部352a能驱动动力接收件齿轮342旋转的驱动位置;也就是说,在动力接收件凸部341与动力输出件10耦合而刚接收到动力输出件10传递的旋转驱动力时,动力接收件凸部341便开始旋转,但是,因第二推动部352b与第二被推动部342b在动力接收件凸部341的旋转方向上间隔开,这时,动力接收件齿轮342将不会立即被驱动旋转,随后,动力接收件凸部341带动着第二推动部352b沿逆时针旋转一定角度后,第二推动部352b与第二被推动部342b抵接,这时,第二推动部352b推动动力接收件齿轮342开始旋转,进而,动力接收件齿轮342驱动感光鼓349旋转,换句话说,动力接收件凸部341在自身旋转方向上并非固定在动力接收件齿轮342上,而是具有一定的活动量,该种构造使得动力接收件凸部341在到达驱动位置前,因其在旋转方向上具有一定的活动量而具有相对于在驱动位置时更小的扭矩,使得动力输出件10在与动力接收件凸部341耦合的过程中,动力输出件10更易于与具有更小扭矩的动力接收件凸部341耦合,进一步的提高了动力输出件10与动力接收件凸部341的耦合成功率;进一步的,处理盒350中还设置有安装在动力接收件被支撑部351上的第二保持件382,第二保持件382优选为扭簧,但是其不限于扭簧,还可以是拉簧等部件,第二保持件382可用于在动力接收件凸部341未受到外力作用时,将动力接收件凸部341保持在非驱动位置,并且当动力接收件凸部341上的外力撤去后,可将动力接收件凸部341由驱动位置复位至非驱动位置。
如图41-42所示,不仅如此,作为上述实施例中已经描述的,由于动力输出件10在由缩进位置移动至伸出位置的过程中可能会发生径向摆动,导致动力输出件10在伸出过程中会出现动力输出件凹部12的旋转轴线与动力接收件凸部341的旋转轴线不重合的情况,在此种情况下,动力输出件凹部12与动力接收件凸部341便难以成功耦合,为此,上述实施例中的处理盒中设置有抑制动力输出件10摆动幅度的第一预啮合定位部和第二预啮合定位部,不仅如此,为更进一步地提高动力输出件凹部12与动力接收件凸部341的耦合成功率,在本实施 例中的处理盒中,动力接收件被支撑部351穿过并安装在形成在壳体340右端部上的壳体轴承孔340c和位于动力接收件齿轮342内表面上的动力接收件齿轮轴承孔342c中,动力接收件被支撑部351与壳体轴承孔340c之间为间隙配合,动力接收件凸部和动力接收件齿轮轴承孔342c之间为间隙配合,这就使得动力接收件被支撑部351在受到外力作用时可相对于壳体340和动力接收件齿轮342能发生径向移动,一旦动力输出件10在伸出过程中出现较大幅度摆动而使得动力输出件凹部12的旋转轴线与动力接收件凸部341的旋转轴线不重合的情况,可跟随动力接收件被支撑部351一起径向移动的动力接收件凸部341在被摆动的动力输出件10接触后能在径向方向移动,而后与动力输出件凹部12轴向对准并耦合,二者耦合后,动力接收件凸部341与动力输出件凹部12可自适应地旋转至同轴位置,也就是说,该结构进一步的提高了动力接收件凸部341与动力输出件凹部12的耦合成功率;进一步的,动力接收件被支撑部351的外周表面具有外径D4,壳体轴承孔340c具有内径D5,动力接收件齿轮轴承孔342c的内径为D6,为实现上述动力接收件凸部341可径向移动的效果,壳体轴承孔340c的内径D5和动力接收件齿轮轴承孔342c的内径D6均需要大于动力接收件被支撑部351的外径D4,当D6>D5>D4时,动力接收件被支撑部351则依靠壳体轴承孔340c来限制动力接收件被支撑部351的最大径向移动幅度;当D5>D6>D4时,动力接收件被支撑部351则依靠动力接收件齿轮轴承孔342c来限制动力接收件被支撑部351的最大径向移动幅度;当D6=D5>D4时,二者共同限制动力接收件被支撑部351的最大径向移动幅度;也就是说,动力接收件被支撑部351的最大径向移动幅度是通过壳体轴承孔340c和动力接收件齿轮轴承孔342c中的至少其中之一来限制的;进一步的,为更好地实现动力接收件被支撑部351的径向移动,壳体轴承孔340c和动力接收件齿轮轴承孔342c与动力接收件被支撑部351之间的间隙大小应当保持在一个适当的距离,过小则使得动力接收件被支撑部351径向移动距离过小而难以与摆动幅度较大的动力输出件10耦合,过大则导致动力接收件被支撑部351径向移动过大而使得动力接收件被支撑部351移动变得不稳定,从而使得动力接收件凸部341也难以与动力输出件10耦合,优选的,0.2mm≦D5-D4≦1.5mm,或0.2mm≦D6-D4≦1.5mm。
实施例4
如图43-44所示,接下来将介绍本发明中的实施例4,与前述实施例1-4不同之处在于,本实施例4中的处理盒550还包括设置在壳体540右端的定位件570,具体的,定位件570安装在护盖530的第一轴承部531上,定位件570与显影辊齿轮543和显影辊539同轴设置并可相对旋转,其不仅使得处理盒可设置的更加紧凑,有助于缩小处理盒尺寸,使得处理盒更加小型化,也使得空转的定位件570只是作为一个辅助件而无需用于驱动显影辊539等部件,降低了定位件570的制造和安装精度;并且,在左右方向上,定位件570布置在显影辊齿轮543的外侧,在保证定位件570与动力输出件10能准确接触的前提下,该结构同时降低了动力输出件10所需的伸出行程,使动力输出件10能在更短的行程内与定位件570接触,提高了二者的耦合成功率;在本实施例中,定位件570和调节部560以互相面向彼此的方式设置,定位件570被配置为可在动力输出件10伸出和旋转过程中接触并定位动力输出件10,以避免动力输出件10在伸出和旋转过程中发生较大幅度的径向摆动,而影响动力输出件10与处理盒550的动力接收件凸部541的耦合准确性,具体的来说,定位件570包括暴露在处理盒550的外部的暴露部分,该暴露部分的至少一部分面向感光鼓549的感光鼓旋转轴线,换句话说,暴露部分的至少一部分面向调节部560和避让部566,并且,在左右方向上,定位件570与调节部560至少部分重叠,使得定位件570和调节部560能从面对彼此的方向对动力输出件10进行定位,使得动力输出件10在被限制倾斜时受力更加的平衡以避免动力输出件10仅朝着一侧倾斜,提高了动力输出件的伸出稳定性,所以,在定位件570与调节部560的共同定位下,动力输出件凹部12与动力接收件凸部541的耦合准确性将大大得到提高。进一步的,定位件570构造为具有光滑的表面,定位件570与动力输出件10在相互接触时可减少与动力输出件的摩擦损耗,可选择的是,也可以是粗糙表面,只要能起到定位的效果即可。
实施例5
如图45-54所示,接下来将介绍本发明中的实施例5,本实施例中的处理盒650的定位件670同样具有与上述实施例4中的定位件相同的位置关系及功能,这里就不再赘述,但是,本实施例中的定位件670的结构不同于上述实施例,不同之处在于,本实施例中的定位件670的外表面上还设置有多个突起671,多个 突起671在定位件670的圆周方向上间隔的布置在定位件670的外表面上,并且,突起671可啮合至构造为斜齿的动力输出件齿轮齿11中,并可接收区别于上述实施例中的动力接收件648所接收的驱动力,在动力输出件齿轮齿11的旋转过程中,二者在啮合时可产生一个在左右方向上靠近动力接收件凸部641的轴向力,该轴向力可迫使动力输出件10从缩进位置移动至伸出位置,也就是说,相比于前述实施例中的动力输出件10仅可通过门盖连杆或驱动齿轮1的驱动而迫使动力输出件10伸出,本实施例中的处理盒还通过在定位件670上设置有至少一个可啮合至动力输出件齿轮齿11中的突起671,可进一步的迫使动力输出件10伸出,该结构也更进一步的提高了动力输出件凹部12与动力接收件凸部641的耦合成功率和耦合稳定性,所以说,该定位件670不仅有助于对动力输出件10进行定位,而且定位件670上的突起671还可啮合至动力输出件齿轮齿11中而能将动力输出件10辅助的从电子照相成像装置中拉出;进一步的,凸起671在左右方向上的宽度S5大小为大于等于0.5mm,小于等于3mm,即0.5mm≦S5≦3mm,当S5<0.5mm时,凸起671可能因强度不足而断裂,当S5>3mm时,凸起671易出现难以与动力输出件齿轮齿11啮合的问题,只有凸起471在上述范围内,才不易出现上述问题;更优选的是,1mm≦S5≦2mm,在该区间范围内,既保证了凸起671的强度,也避免了因设置得太宽而无法与动力输出件啮合,从而导致定位件670无法辅助的将动力输出件10从电子照相成像装置中拉出;在处理盒650中,至少一部分的突起671为向处理盒650的外部暴露的暴露突起671a,该暴露突起671a可与动力输出件齿轮齿11啮合,暴露突起671a的至少一部分面向感光鼓旋转轴线,并在轴向方向上布置在动力接收件648的外侧。
优选的,该突起671为齿状突起,以便于其更好的与动力输出件齿轮齿11的齿形、齿状向适配,便于该突起671更易的啮合至动力输出件齿轮齿11中,提升动力输出件10的伸出稳定性;进一步的,定位件670更优选为直齿轮,可选择的是,定位件670还可以是链轮、棘轮等部件,只要能起到上述定位件670起到的技术效果即可。
不仅如此,在护盖630上同样安装有用于支撑显影辊639和定位件670的第二轴承部631,第二轴承部631构造为中空的圆柱形突起,该中空的圆柱形突起具有设置在第二轴承部631内部的内周表面631a,以及暴露在第二轴承部631 外部的外周表面631b,显影辊639的右端部可旋转的支撑在上述第二轴承部631的中空部中以被第二轴承部631支撑,从而使得显影辊639被第二轴承部631定位,而定位件670则安装在该第二轴承部631的外周表面631b上,其进一步的提高了处理盒在轴向方向上的空间利用率,使得处理盒布置的更加紧凑,有利于处理盒的小型化设计。
在处理盒650中,还包括一个电连接到显影辊639的电极680,电极680包括可电连接至电子照相成像装置中供电部件(未示出)的第一电连接部680a,可与显影辊639接触而能将电力供给至显影辊639的第三电连接部680c,以及电连接第一电连接部680a和第三电连接部680c的第二电连接部680b,其中,第一电连接部680a与第二电连接部680b交叉设置并相互弯折,而第二电连接部680b与第三电连接部680c也相互交叉设置并相互弯折,在轴向方向上,电极680的至少一部分设置在护盖630和定位件670之间,并且,沿着轴向方向观察,定位件670覆盖电极680的至少一部分,以将电极680在轴向方向上限制在一定范围内,避免电极680发生松脱而影响与显影辊639的电连接稳定性;更进一步的是,定位件670可与电极680接触,以限制电极680进一步的朝向靠近显影辊639的方向移动,进一步的提高了电极680与显影辊639的电连接稳定性,基于该结构,电极680可被定位在护盖630上;在第二轴承部631的圆柱形突起上还设置有开口631c,电极680的至少一部分可从第二轴承部631的外部穿过开口631c,并伸入至第二轴承部631的圆柱形突起内,具体的来说,电极680的第二电连接部680b可穿过开口631c,而与第三电连接部680c共同伸入至第二轴承部631的圆柱形突起内,并且,定位件670同样具有中空的内周面672,伸入至第二轴承部631的圆柱形突起内的电极680的一部分也插入在该定位件670的内周面672内,换句话说,在垂直于轴向方向的方向上,电极680的至少一部分与定位件670重叠,其使得电极680的第三电连接部680c可与显影辊639的右端部在第二轴承部631的中空部或定位件670的内周面672内保持弹性抵接,避免了电极680去接触位于第二轴承部631中空部中的显影辊639的外周面,从而造成显影辊639与电极680产生较大磨损以及引起显影辊639周向定位不稳定的问题,因此,通过采用上述结构,可在更有效的利用了处理盒650内部空间的同时,也能使得电极680能与显影辊639保持稳定电连接。可选择的是,电极680依然 可采用如实施例2中的结构,即第二轴承部既可用于支撑显影辊,也可用于接收电子照相成像装置中供电部件的电力并将该电力传递至显影辊。
实施例6
如图55-61所示,接下来将介绍本发明的实施例6,本实施例中的处理盒750还包括可将阻力施加至定位件770上的阻力施加部件,以此提高定位件770的旋转扭矩,增大定位件770的旋转阻尼,在此种情况下,定位件770与动力输出件10在啮合旋转的过程中产生的轴向力将变得更大,使得动力输出件10能更稳定的伸出,不仅如此,二者啮合的也将更加得平稳,其减少了动力输出件10在伸出移动过程中的摆动幅度,使得动力输出件10能以更稳定的姿态与动力接收件凸部741耦合,故通过在定位件770上设置有阻力施加部件,更进一步的提高了动力输出件10与动力接收件凸部741的耦合成功率。
如图55所示,为本实施例中的第一种阻尼结构,具体的来说,与前述实施例中描述的相同,定位件770同样是安装在护盖730上的第一轴承部731中,当然,也可将定位件770安装在除第一轴承部731之外的其它轴承部上,这不是限定的,本实施通过将第一轴承部731的外径R1设置的相对于定位件770的内径R2更大,而实现二者的过盈配合,当定位件770相对于护盖730旋转时,定位件770的旋转被抑制,从而此增大了定位件770的旋转阻尼,进一步的,0<R1-R2≦0.1,R1和R2的差值在此范围内定位件770具有较好的旋转效果,利于定位件770一边旋转一边辅助的拉出动力输出件10,避免当二者差值过大时,施加在定位件770上的阻尼过大,这将导致定位件770受力后难以旋转甚至不旋转,强行施力转动易对定位件770造成损坏;优选的,0.01≦R1-R2≦0.07,提高R1和R2的差值下限,增大施加至定位件770上的阻尼,起到相应的效果,同时进一步的拉低R1和R2的差值上限,避免定位件770出现卡死;可选择的是,作为其中一种可选的实施方式,第一轴承部731与护盖730分体设置,第一轴承部731以过盈配合的方式可拆卸的安装在护盖730上,并可相对于护盖730旋转,换句话说,当定位件770跟随第一轴承部731相对于护盖730旋转时,由于第一轴承部731与护盖730为过盈配合,第一轴承部731与护盖730之间因发生相对旋转而产生阻尼,阻尼施加在第一轴承部731上而会抑制第一轴承部731进行旋转,这时,安装在第一轴承部731上并可跟随第一轴承部731一起旋转的 定位件770的旋转也被抑制,阻尼反馈并间接的施加在定位件770上,这样一来,同样增大了定位件770的旋转阻尼,作为另一种可选的实施方式为,将内径较小的定位件770安装在外径较大的显影辊轴739a上,同样也可实现增大定位件770旋转阻尼的技术效果,这并不是限定的,而且,除了可在周向上对定位件770施加旋转阻尼施外,还可以在轴向(即左右方向)上对其施加旋转阻尼,具体的来说,定位件770与显影辊齿轮743在轴向上邻接并以过盈配合的方式安装在处理盒750中,也就是说,此时的定位件770在轴向方向上被定位在第一轴承部731和显影辊齿轮743之间以实现过盈,当然,可选择的是,也可以在定位件770与显影辊齿轮743之间设置有挡块,而将定位件770在轴向方向上定位在第一轴承部731与挡块之间以实现过盈。也就是说,在第一种阻尼结构中,定位件770以过盈配合的方式安装在处理盒750中,在这其中,阻力施加部件可以理解为第一轴承部731或显影辊轴739a或显影辊齿轮743或挡块,只要是与定位件770过盈配合的部件即可。
如图56所示,为本实施例中的第二种阻尼结构,与上述第一种阻尼结构不同的是,定位件770不再是安装在护盖730的第一轴承部731上,而是和显影辊齿轮743一样均安装在显影辊轴739a上,定位件770在左右方向上设置在显影辊齿轮743的外侧,而且,定位件770上具有端面为D形的定位孔772以匹配的安装在端面为D形的显影辊轴739a上,从而使得定位件770在接收到动力输出件10的旋转驱动力后也能和显影辊齿轮743一样驱动显影辊旋转,所以,相比于前述实施例中的定位件与显影辊齿轮743可相对旋转的结构,该定位件会保持空转而负载较小,而采用第二种阻尼结构的定位件770在旋转时具有更大的负载,迫使定位件770旋转的旋转阻力增大,同样能更稳定且平稳地将动力输出件10拉出至伸出位置;可选择的是,定位件770不仅可通过端面为D形的定位孔772匹配的安装在端面为D形的显影辊轴739a上,还可以将定位件770设置为具有除D形孔以外的其它异形孔的形式匹配的安装至端面为异形的显影辊轴739a上,这并不是限定的。在第二种阻尼结构中,阻力施加部件可以理解为显影辊。
如图57-58所示,为本实施例中的第三种阻尼结构,阻力施加部件为设置在护盖730上的至少一个弹性件773,弹性件773设置在定位件770的径向外侧, 并在定位件770的旋转方向上间隔一定距离布置,在定位件770的旋转过程中,定位件770的主体部或突起771可与弹性件773循环多次接触,在二者接触过程中,弹性件773可抑制定位件770的旋转,从而增大定位件770的旋转阻尼;进一步的,弹性件773具有三个;进一步的,弹性件773优选为软橡胶,其不仅可实现增大阻尼的效果,还在与定位件770的循环多次接触中不易磨损,提高了弹性件773的使用寿命;可选择的是,弹性件773的位置还可以设置在壳体上或独立于壳体或护盖730设置;可选择的是,弹性件773还可以是套设在第一轴承部731外圆周表面与定位件770内圆周表面之间的环状部件,其同样可实现与上述相同的技术效果。
如图59-60所示,为本实施例中的第四种阻尼结构,阻力施加部件为设置在第一轴承部731上的弹性扣774,第一轴承部731与弹性扣774为一体成型制造,在生产第一轴承部731与弹性扣774时仅需一套模具即可,降低了生产成本,当然,二者也可以是分体制造的;在第四种阻尼结构中,定位件770同样安装在第一轴承部731,这就使得弹性扣774产生的弹性力沿轴向方向向外作用在定位件770上,使得定位件770与护盖730的摩擦阻力增大,从而增大了定位件770的旋转阻尼;当然,可选择的是,第五种阻尼结构中的阻力施加部件也可以设置为弹簧或弹性较好部件。
如图61所示,为本实施例中的第五种阻尼结构,阻力施加部件为扭簧775,扭簧775安装在形成于护盖730内表面上的定位柱730a上,其一端抵接在护盖730的内表面上,另一端则抵接在定位件770上的定位件突起776上,定位件突起776是形成在定位件770外圆周表面上并沿圆周方向间隔布置的多个突起,通过将设置的扭簧775抵接在定位件770上,扭簧775因发生扭曲变形产生的弹性力可施加于定位件770上,从而增大了定位件770的旋转阻尼,在定位件770的旋转过程中,定位件770可克服该弹性力旋转。
实施例7
接下来将结合附图62-65介绍本发明中的实施例7,实施例7示出了一种处理盒900,其与上述实施例1-6中处理盒相同的部分,这里就不再赘述,不同之处在于,处理盒900的定位件970与显影辊939的旋转轴线不重合,换句话说,显影辊939可绕左右方向延伸的第一轴线A1旋转,定位件970可绕左右方向延 伸的区别于第一轴线A1的第二轴线A2旋转,第一轴线A1和第二轴线A2在前后方向上间隔排布,第二轴线A2在前后方向布置在第一轴线A1的前侧。
具体的来说,本实施例中的定位件970安装在形成于护盖930上的第二轴承部933上,定位件970可相对于显影辊齿轮943旋转的安装与第二轴承部933上,第二轴承部933构造为自护盖930上面向处理盒950左端的表面上形成的柱形突起,并且,定位件970的直径小于显影辊齿轮943的最小齿部直径,以避免与显影辊齿轮943发生干涉,而且,定位件970的结构同样可以是外表面为光滑或粗糙的表面,亦或是外表面上设置多个突起,或是齿状突起,还或是直齿轮或斜齿轮,这里就不再赘述,定位件970通过采用上述结构和位置进行布置,同样可是实现在处理盒950安装过程中定位动力输出件10并可通过与动力输出件齿轮齿11的啮合辅助的将动力输出件10拉出的技术效果。
值得一提的是,在处理盒950中还设置有如实施例7中所描述的将阻力施加至定位件970上的阻力施加部件,以此提高定位件970的旋转扭矩,增大定位件770的旋转阻尼,例如,定位件970可通过过盈配合安装在第二轴承部933上,二者通过紧配的方式配合,诸如此类,具体可参照上述实施例6中的各类结构,这里就不再赘述。
实施例8
如图66-69所示,接下来将介绍本发明中的实施例8,提供了一种不同于上述实施例1-7中的电子照相成像装置和处理盒,本实施例中的电子照相成像装置的门盖在关闭位置和打开位置之间移动时,动力输出件10将不会在缩进位置和伸出位置之间移动,并且,本实施例中的动力输出件10是可倾斜的,具体的来说,当处理盒850未安装在电子照相成像装置中,动力输出件10的旋转轴线相对于左右方向倾斜而处于一个倾斜位置,当处理盒850安装在电子照相成像装置中且门盖处于关闭位置且电子照相成像装置处于工作过程中时,动力输出件10的旋转轴线相对于左右方向平行而处于一个扶正位置,作为对应的,处理盒850区别于上述实施例1的是,安装在壳体840右端的调节部860是相对于壳体240是可动的,在垂直于感光鼓旋转轴线的方向上,调节部860可在靠近感光鼓旋转轴线的第一位置和远离旋转轴线的第二位置之间移动,调节部860用于在处理盒850的安装过程中调节动力输出件10的角度,以将动力输出件10从倾斜位置调 节到扶正位置,并且处理盒850同样包括有同上述实施例中所描述的定位件870以及将阻力施加在定位件870上的阻力施加部件,定位件870优选为具有齿状突起的构造,可以是直齿轮、斜齿轮、棘轮和链轮等构造,可选择的是,也可以是具有光滑或粗糙外表面的构造,这并不是限定的,只是本实施例采用了优选的实施方式;该定位件870安装在处理盒850右端的护盖830上,具体的,其同样安装在护盖830上的第一轴承部831上,定位件830以过盈配合的方式安装在第一轴承部831上,显影辊839可旋转的支撑在第一轴承部831的中空部中,定位件870与显影辊839同轴设置并可相对于护盖830和显影辊839旋转,当然,也可与实施例7中的定位件一样不同轴设置,这里就不再赘述,本实施通过将第一轴承部831的外径R1设置的相对于定位件870的内径R2更大,而实现二者的过盈配合,以此增大定位件870的旋转阻尼,进一步的,0<R1-R2≦0.1,R1和R2的差值在此范围内定位件870具有较好的旋转效果,利于定位件870一边旋转一边辅助的拉出动力输出件10,避免当二者差值过大时,施加在定位件870上的阻尼过大,这将导致定位件870受力后难以旋转甚至不旋转,强行施力转动易对定位件870造成损坏;优选的,0.01≦R1-R2≦0.07,提高R1和R2的差值下限,增大施加至定位件870上的阻尼,起到相应的效果,同时进一步的拉低R1和R2的差值上限,避免定位件870出现卡死;第一轴承部831以过盈配合的方式可拆卸的安装在护盖830上,并可相对于护盖830旋转,换句话说,当定位件870驱动第一轴承部831相对于护盖830旋转时,由于第一轴承部831与护盖830之间为过盈配合,第一轴承部831与护盖830之间因发生相对旋转而产生阻尼,阻尼施加在第一轴承部831上而抑制第一轴承部831旋转,这时,安装在第一轴承部831上并可跟随第一轴承部831一起旋转的定位件870的旋转也被抑制,阻尼反馈并间接的施加在定位件870上,这样一来,这同样增大了定位件870的旋转阻尼,作为另一种可选的实施方式为,将内径较小的定位件870安装在外径较大的显影辊轴839a上,同样也可实现增大定位件870旋转阻尼的技术效果,这并不是限定的,而且,除了可在周向上对定位件870施加旋转阻尼施外,还可以在轴向(即左右方向)上对其施加旋转阻尼,具体的来说,定位件870与显影辊齿轮843在轴向上邻接并以过盈配合的方式安装在处理盒850中,也就是说,此时的定位件870在轴向方向上被定位在第一轴承部831和显影辊齿轮 843之间以实现过盈,当然,可选择的是,也可以在定位件870与显影辊齿轮843之间设置有挡块,而将定位件870在轴向方向上定位在第一轴承部831与挡块之间以实现过盈。也就是说,在第一种阻尼结构中,定位件870以过盈配合的方式安装在处理盒850中,在这其中,阻力施加部件可以理解为第一轴承部831或显影辊轴839a或显影辊齿轮843或挡块,只要是与定位件870过盈配合的部件即可,而且,阻力施加部件还可以是上述实施6中提及的显影辊轴839a、弹性件、弹性扣、扭簧等结构,这里就不再赘述。
进一步的,由于显影辊839与第一轴承部831是可旋转的接触,故第一轴承部831需要良好的耐磨性和润滑性,通常,护盖830所选用的材质难以满足其要求,故优选的是,可选择的是,作为其中一种可选的实施方式,第一轴承部831与护盖830是分体制造的,也就是说,第一轴承部831可拆卸的安装在护盖830上,二者可分别采用不同的材质制造以此来满足第一轴承部831所需的耐磨、润滑的要求,当然,也可将第一轴承部831作为护盖830的一部分,即第一轴承部831与护盖830是一体成型的;更进一步的,第一轴承部831为导电轴承,其采用导电材料制成,也就是说,第一轴承部831既可作为轴承部件支撑显影辊839,也可作为电极部件给显影辊839传递电力,使得处理盒850无需额外再设置电极,简化了处理盒的结构,降低了生产成本。进一步的,在左右方向上,定位件570与调节部860至少部分重叠,这种构造使得定位件870和调节部860能从面对彼此的方向对动力输出件10进行定位,使得动力输出件10在被限制倾斜时受力更加的平衡以避免动力输出件10仅朝着一侧倾斜,提高了动力输出件的伸出稳定性。
需要说明的是,本实施例中的处理盒850也可在定位件870的辅助下,仅通过动力接收件凸部841与动力输出件10的耦合,就可驱动感光鼓849、显影辊839、搅拌架旋转,但是,本实施例中的处理盒850同样可与上述实施例1中的处理盒一样不设置有定位件,仅通过驱动齿轮1的驱动就可驱动动力输出件10从缩进位置移动至伸出位置而与动力接收件凸起841耦合,但是这并不是限定的;并且,除本实施例中处理盒850区别于上述实施例中处理盒的部分结构外,上述实施例1-7中处理盒850的其它所列举的结构仍然可应用在本实施例中的处理盒850中,这里就不再重复赘述。
该电子照相成像装置还包括一个设置在侧板20上的并可覆盖至少一部分的动力输出件10的盖部40,盖部40上设置有暴露方向不同的第一暴露孔41、第二暴露孔42以及第三暴露孔43,第一暴露孔41的暴露方向与第二暴露孔42、第三暴露孔43的暴露方向相交叉,其中,第一暴露孔41可用于暴露动力输出件凹部12以允许其与处理盒850的动力接收件凸部841耦合,而第二暴露孔42和第三暴露孔43均暴露动力输出件齿轮齿11,但是,二者不同的是,第二暴露孔42构造为允许可动的调节部860进入以将动力输出件10从倾斜位置调节至扶正位置,第三暴露孔43构造为允许定位件870与动力输出件齿轮齿11啮合,以定位动力输出件10并可辅助的将动力输出件10从缩进位置拉出至伸出位置,具体过程与前述实施例类似,这里就不再赘述。
实施例9
如图70所示,接下来将介绍本发明中的实施例9,实施例9中示出了一种处理盒,与上述实施例处理盒中相同的部分,将不再赘述,不同之处在于,沿着垂直于感光鼓旋转轴线的方向测量,从感光鼓旋转轴线到暴露突起471a的末端的距离P不小于感光鼓449的半径R的90%且不大于感光鼓449的半径R的110%,即0.9R≦P≦1.1R,当P处于该范围内时,定位件470与动力输出件齿轮齿11具有最佳的啮合状态,二者在啮合时动力输出件10由缩进位置移动至伸出位置时将变得更加容易且稳定,若P小于感光鼓449的半径R的90%,定位件470的突起471难以与动力输出件10的动力输出件齿轮齿11啮合上甚至于无法啮合,而当P大于感光鼓449的半径R的110%时,定位件470的突起471易出现与动力输出件10的动力输出件齿轮齿11干涉而无法啮合的情况;更优选的是,沿着垂直于感光鼓旋转轴线的方向测量,从感光鼓旋转轴线到暴露突起471a的末端的距离P不小于感光鼓449的半径R的93%且不大于感光鼓449的半径R的107%,即0.93R≦P≦1.07R。值得一提的是,上述实施例中的处理盒只要具有定位件470,定位件470的外表面具有突起,就满足上述感光鼓旋转轴线到暴露突起471a的末端的距离P数值关系,这里就不再赘述。
有益效果
本发明的处理盒仅依靠动力接收件凸部与动力输出件的耦合,就可驱动感光鼓、显影辊、搅拌架等旋转件旋转,相比于现有技术,降低了处理盒制造所需的 精度,同时也降低了处理盒所需的组装精度,大大提高了动力输出件与处理盒耦合的准确性。

Claims (9)

  1. 一种处理盒,可拆卸的安装至电子照相成像装置中,所述电子照相成像装置设置有包含动力输出件齿轮齿和动力输出件凹部的动力输出件,所述处理盒包括:
    壳体;
    感光鼓,可绕沿左右方向延伸的感光鼓轴线旋转;
    动力接收件,所述动力接收件设置在所述感光鼓的端部并包括用于从所述处理盒的外部接收用于旋转所述感光鼓的驱动力的动力接收件凸部;
    显影辊;
    显影辊齿轮,设置在所述显影辊的端部,可接收来自所述动力接收件凸部的驱动力而旋转;
    其特征在于,还包括调节部,设置在所述处理盒的端部,所述调节部用于限制所述动力输出件的移动从而限制所述动力输出件的倾斜角度,所述调节部和所述壳体之间形成有可与所述电子照相成像装置中的定位肋配合以限制所述处理盒在左右方向上的移动的定位槽。
  2. 根据权利要求1所述的处理盒,其特征在于,所述动力接收件凸部的末端设置有第一导向部,所述第一导向部在左右方向上具有宽度M1,所述宽度M1满足:0.2mm≦M1≦1mm。
  3. 根据权利要求2所述的处理盒,其特征在于,所述动力接收件凸部在左右方向上具有长度M2,所述宽度M1和所述长度M2满足:1/15≦M1/M2≦5/15。
  4. 根据权利要求1所述的处理盒,其特征在于,所述动力输出件凹部在旋转一周所描绘的轨迹路径S1的最大直径为D1,所述动力接收件凸部在旋转一周所描述的轨迹路径S2的最大直径为D2,所述D1和D2满足:2.4mm≦D1-D2≦3mm。
  5. 根据权利要求1所述的处理盒,其特征在于,所述显影辊齿轮包括显影辊大径齿轮部和显影辊小径齿轮部,所述动力接收件还包括动力接收件齿轮,所述显影辊大径齿轮部和所述动力接收件齿轮啮合并构造为斜齿轮,所述显影辊小径齿轮部构造为直齿轮。
  6. 根据权利要求1所述的处理盒,其特征在于,还包括安装在所述壳体右端的护盖,所述护盖上设置有用于支撑所述显影辊的第一轴承部,在左右方向上,所述第一轴承部的至少一部分与所述调节部具有重叠部分。
  7. 根据权利要求1所述的处理盒,其特征在于,所述壳体右端部设置有壳体轴承孔,所述动力接收件具有动力接收件被支撑部,所述动力接收件被支撑部可被所述壳体轴承孔支撑,所述动力接收件被支撑部的外周表面具有外径D4,所述壳体轴承孔具有内径D5,所述D4和所述D5满足:0.2mm≦D5-D4≦1.5mm。
  8. 根据权利要求7所述的处理盒,其特征在于,所述动力接收件具有动力接收件齿轮,所述动力接收件齿轮的内表面设置有动力接收件齿轮轴承孔,所述动力接收件齿轮轴承孔的内径为D6,所述D6和所述D4满足:0.2mm≦D6-D4≦1.5mm。
  9. 根据权利要求1所述的处理盒,其特征在于,所述处理盒包括从所述壳体的右端面向内凹陷形成的避让部,所述避让部可容纳所述动力输出件齿轮齿的至少一部分,当所述动力接收凸部和所述动力输出件凹部啮合时,所述处理盒不与所述动力输出件齿轮齿接触。
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JPH0619229A (ja) * 1992-06-30 1994-01-28 Canon Inc プロセスカートリッジ
US6097906A (en) * 1997-02-14 2000-08-01 Canon Kabushiki Kaisha Electrophotographic image forming apparatus having a main assembly connector and a process cartridge having a cartridge connector electrically connectable with the main assembly connector
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