WO2017084412A1 - 一种处理盒、以及包含该处理盒的图像形成装置 - Google Patents

一种处理盒、以及包含该处理盒的图像形成装置 Download PDF

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Publication number
WO2017084412A1
WO2017084412A1 PCT/CN2016/097875 CN2016097875W WO2017084412A1 WO 2017084412 A1 WO2017084412 A1 WO 2017084412A1 CN 2016097875 W CN2016097875 W CN 2016097875W WO 2017084412 A1 WO2017084412 A1 WO 2017084412A1
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WO
WIPO (PCT)
Prior art keywords
process cartridge
power receiving
developing unit
receiving port
hub
Prior art date
Application number
PCT/CN2016/097875
Other languages
English (en)
French (fr)
Inventor
罗琴
丁戈明
马海龙
刘金莲
曹辉
Original Assignee
珠海艾派克科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201520938624.8U external-priority patent/CN205193438U/zh
Application filed by 珠海艾派克科技股份有限公司 filed Critical 珠海艾派克科技股份有限公司
Publication of WO2017084412A1 publication Critical patent/WO2017084412A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical 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 present invention relates to a process cartridge, and an image forming apparatus including the same.
  • the present invention relates to a process cartridge that is detachably mounted to an image forming apparatus based on an electrostatic printing technique, which may be a laser image forming apparatus, an LED image forming apparatus, a copying machine, or a facsimile machine. Any one.
  • an electrostatic printing technique which may be a laser image forming apparatus, an LED image forming apparatus, a copying machine, or a facsimile machine. Any one.
  • a process cartridge of the prior art includes a photosensitive unit and a photosensitive unit that can act on the developing unit.
  • the photosensitive unit is provided with a photosensitive element capable of forming an electrostatic latent image after being irradiated by laser light disposed in the image forming apparatus; and the developing unit is provided with a developing device capable of transferring the developer carried in the developing unit to the photosensitive element The component is thereby formed into a developer image, and the developer image is transferred to the printing medium by the photosensitive member.
  • the cleaning unit is further provided with a cleaning blade for cleaning the remaining developer on the photosensitive member.
  • the present invention provides a process cartridge, and an image forming apparatus including the same, to solve the problem that the developing device in the process cartridge is still idling when the existing process cartridge does not require the process cartridge to participate in development. It affects the use effect of the developing element.
  • a first aspect of the present invention is to provide a process cartridge detachably mounted in an image forming apparatus, comprising a photosensitive unit and a developing unit, wherein a longitudinal end of the process cartridge is disposed from the image forming apparatus a rotatable drive mechanism receives a power receiving port of the power, the developing unit further comprising a hub receivable to receive power from the power receiving port;
  • the power receiving port transmits power received from the driving mechanism to the hub;
  • the power receiving port does not transmit power to the hub when the developing unit rotates relative to the photosensitive unit.
  • the longitudinal end of the developing unit is provided with an action portion that is touched by a movable control mechanism provided inside the image forming device to rotate the developing unit.
  • the power receiving port is engaged with the driving mechanism; when the developing unit is rotated relative to the photosensitive unit, the power receiving port and the driving mechanism Get rid of.
  • the power receiving port moves in an axial direction of the hub, and a moving direction of the power receiving port is a direction away from the driving mechanism.
  • the process cartridge further includes a positioning ring, and when the developing unit rotates relative to the photosensitive unit, the pressing lever of the positioning ring is abutted to disengage the power receiving port from the driving mechanism.
  • the pressing rod protrudes beyond the hub.
  • the power receiving port and the driving mechanism are both engaged.
  • a torsion spring member is disposed between the power receiving port and the hub; when the developing unit is not rotated relative to the photosensitive unit, the power receiving port transmits power to the device through the torsion spring member The hub; when the developing unit rotates relative to the photosensitive unit, the power receiving port cannot transmit power to the hub through the torsion spring member.
  • the power receiving port transmits power to the hub by tightening the torsion spring member.
  • the direction of rotation of the torsion spring member is opposite to the direction of rotation of the power received by the power receiving port from the drive mechanism.
  • the upper half of the torsion spring component is sleeved on the power receiving port, and the lower half of the torsion spring component is sleeved on the hub.
  • the torsion spring member is provided with a first free end, and when the developing unit rotates relative to the photosensitive unit, the first free end is resisted so that the torsion spring member is relatively fixed.
  • the method further includes a positioning ring and a guide sleeve, wherein the positioning ring can slide the guide sleeve along an axial direction of the hub; the positioning ring has a pressing rod extending beyond the hub, when When the developing unit rotates relative to the photosensitive unit, the pressing lever is abutted to slide the guide sleeve inward in the axial direction of the hub and to resist the first free end of the torsion spring member.
  • the positioning ring is provided with an inclined surface
  • the guiding sleeve is provided with an inclined surface
  • the inclined surface of the positioning ring presses the inclined surface of the guiding sleeve to slide the guiding sleeve.
  • an elastic element is disposed between the guide sleeve and the power receiving port.
  • the lower half of the torsion spring member has a free end, and the free end is inserted in the hub.
  • a second aspect of the present invention is to provide a process cartridge detachably mounted in an image forming apparatus including a photosensitive unit and a developing unit, wherein a longitudinal end of the process cartridge is disposed in the image forming apparatus
  • the rotatable drive mechanism engages a power receiving port that receives power
  • the developing unit is rotatable relative to the photosensitive unit about a rotational axis, the rotational axis of the rotating shaft being disposed at a different axis from the rotational axis of the power receiving port.
  • the developing unit end portion is further provided with a hub, the power receiving port is disposed on the hub, and the rotating shaft is disposed outside the axial projection range of the hub.
  • a photosensitive element is disposed on the photosensitive unit in a longitudinal direction
  • a developing unit is disposed on the developing unit in a longitudinal direction, and the developing unit can be rotated relative to the photosensitive unit to rotate the shaft The photosensitive element moves from the contact position to the separated position.
  • a control mechanism for controlling the expansion and contraction of the power port is further disposed on the longitudinal end of the process box.
  • control mechanism includes a positioning ring, a guide sleeve, and the positioning ring is provided with a positioning ring inclined surface forming a height difference, and the guiding sleeve is provided with a guiding sleeve inclined surface forming a height difference, the positioning ring
  • the inclined surface cooperates with the inclined surface of the guide sleeve.
  • control mechanism is disposed on the developing unit, and the positioning ring is further provided with a pressing rod for receiving an external force, the pressing rod is fixedly connected to the positioning ring at one end, and the other end is The end cover abuts, when the developing unit rotates relative to the photosensitive unit, the positioning ring is relatively fixed with the end cover, the guiding sleeve rotates relative to the positioning ring, and the inclined surface of the positioning ring is The inclined surface of the guide sleeve slides relative to each other.
  • the pressing rod protrudes beyond the axial projection range of the hub.
  • a boss is disposed on the outer circumference of the power receiving port for receiving the guide sleeve.
  • control mechanism further includes an elastic member disposed in the hub in the axial direction of the hub and sleeved with the power receiving port.
  • the elastic element is a spring, and one end of the spring abuts against the power receiving port, and the other end abuts against the interior of the hub.
  • the power receiving port includes a power receiving portion, an intermediate connecting portion, and an end transmitting portion, and the power receiving portion, the intermediate connecting portion, and the end transmitting portion are connected by a key groove, and the key and the slot are relatively slidable .
  • the end cover is provided with a clamping block
  • the guiding sleeve is provided with an axial limiting interface
  • the clamping block cooperates with the axial limiting interface
  • the longitudinal end of the developing unit is further provided with a baffle that limits the power receiving port and the control mechanism to the end of the developing unit.
  • one end of the baffle is provided with a support shaft, and the end cover is provided with a through hole, and the support shaft cooperates with the through hole.
  • the inner diameter of the through hole is larger than the outer diameter of the support shaft.
  • the rotating shaft is disposed on the baffle.
  • a third aspect of the present invention is to provide an image forming apparatus including the above-described process cartridge, wherein the image forming apparatus further includes a movable control mechanism, and the developing unit is further provided with an applied portion, a control mechanism abuts against the affected portion to control the developing unit and the sense The light unit is relatively rotated.
  • a process cartridge and an image forming apparatus including the same are controlled by a control mechanism to control expansion and contraction of a power receiving port, so that the power receiving port can be entirely retracted and disengaged from a driving mechanism in the image forming apparatus. Therefore, the problem that the developing element in the process cartridge is still idling and affecting the use effect of the developing element when the process cartridge is not required to participate in development is solved; and the technical solution of the present invention solves the problem that the developing unit does not rotate enough relative to the photosensitive unit. Big problem.
  • FIG. 1 is a perspective view of a process cartridge according to a first embodiment of the present invention
  • FIG. 2 is an exploded view of a control mechanism for a power receiving port and a control power port expansion and contraction according to a first embodiment of the present invention
  • Figure 3 is a cross-sectional view showing the assembly of the power receiving port and the control mechanism for controlling the power port opening and contracting according to the first embodiment of the present invention
  • Figure 4 is a perspective view of a process cartridge according to a second embodiment of the present invention.
  • Figure 5 is an exploded view of a process cartridge according to a second embodiment of the present invention.
  • Figure 6 is an exploded perspective view of a second power receiving port provided by a second embodiment of the present invention.
  • Figure 7 is a partial view of a process cartridge according to a second embodiment of the present invention.
  • Figure 8 is an exploded view of a drive assembly provided by a third embodiment of the present invention.
  • Figure 9 is a cross-sectional view showing the assembly of a drive assembly according to a third embodiment of the present invention.
  • Figure 10 is a schematic view of a process cartridge provided in a third embodiment of the present invention in an image forming apparatus
  • FIG. 11 and FIG. 12 are schematic views of the developing unit according to the third embodiment of the present invention when rotated;
  • FIG. 13 and FIG. 14 are schematic diagrams showing the rotation of the developing unit according to the third embodiment of the present invention.
  • Figure 15 is a schematic structural view of a torsion spring component according to a third embodiment of the present invention.
  • 16a and 16b are schematic views showing the cooperation of the power receiving port and the torsion spring member according to the third embodiment of the present invention.
  • 17a and 17b are schematic views showing the cooperation of a power receiving port and a torsion spring member according to a third embodiment of the present invention.
  • Figure 18 is a schematic view showing the cooperation of the power receiving port and the torsion spring member of the third embodiment of the present invention.
  • B10 is an embodiment of a process cartridge provided by the present invention
  • B20 is a drive mechanism provided to receive power from a motor inside the image forming apparatus
  • a power receiving port provided on one longitudinal end of the process cartridge B1 is for engaging with the drive mechanism B20 after the process cartridge is mounted in the image forming apparatus
  • the shutter B5 is held in the longitudinal end of the process cartridge and holds the power receiving port and the control mechanism for controlling the power port expansion and contraction.
  • Fig. 2 is a schematic view showing the assembly between the power receiving port and the control mechanism for controlling the power port opening and contracting.
  • the power receiving port B1 is disposed in the hub B4 and is slidable relative to the hub B4 in the axial direction of the hub B4; the outer circumference of the hub B4 is provided with a helical gear for receiving power from the power receiving port B1, The power is transmitted to a rotating member provided inside the process cartridge, such as a photosensitive member, a developing member, and the like.
  • the guide sleeve B2 provided in this embodiment is provided with a guide sleeve inclined surface B21 which forms a height difference in the axial direction; the positioning ring B3 connected to the external force acting portion provided in this embodiment is provided along the shaft. Forming a height difference of the inclined surface B31 in the direction; after assembly, the inclined surface B31 on the positioning ring B3 and the inclined surface B21 on the guide sleeve B2 cooperate with each other; the baffle B5 is provided with a block B51 in the axial direction of the hub (eg As shown in FIG.
  • the guide sleeve B2 is provided with an axial limit interface B22, that is, a card slot; by the cooperation of the block B51 and the axial limit interface B22, the relative rotation of the guide sleeve B2 and the baffle B5 can be restricted;
  • the transmission port B12 is disposed on the outer circumference of the power receiving port B1, and the groove portion B43 is disposed on the inner circumference of the hub.
  • the power can be transmitted to the hub B4 through the power receiving port B1; the hollow B4 is also disposed in the hub B4, and the power receiving port B1 is disposed in the hollow inner cavity B42 of the hub B4, and the hollow inner cavity B42 further includes a guiding groove B44, the power receiving port B1 is provided with a guiding column B11; the guiding column B1 1 mating with the guide groove B44; an elastic member, such as a compression spring B6, is disposed between the power receiving port and the hub, as shown in FIG.
  • the spring is disposed along the axial direction of the hub
  • the hub is sleeved on the power receiving port, one end of which is in contact with the power receiving port, and the other end abuts against the inner bottom surface of the hub.
  • a boss B13 is further provided on the outer circumference of the power receiving port B1 for supporting the guide bush B2, and the power receiving port B1 is rotatable relative to the guide bush B2.
  • the power receiving port B1 is further provided with a first barb B14 for the second set in the hub B4.
  • the barbs B45 cooperate to prevent the power receiving port B1 from coming out of the hub.
  • the first barb B14 is disposed on the transmitting portion B12, and the second barb B45 is disposed at a position opposite to the groove portion B43.
  • the outer side of the positioning ring B3 in this embodiment is further provided with a force portion capable of receiving an external force, which is a pressing rod B32 connected to the positioning ring B3, and the pressing rod B32 can extend beyond the hub B4, and when the pressing rod B32 receives the external force
  • a force portion capable of receiving an external force which is a pressing rod B32 connected to the positioning ring B3, and the pressing rod B32 can extend beyond the hub B4, and when the pressing rod B32 receives the external force
  • the positioning ring B3 is driven to rotate, and the guide sleeve B2 is relatively non-rotated. After the positioning ring B3 and the guide sleeve B2 are rotated relative to each other, the inclined surface B31 on the positioning ring B3 passes through the guiding sleeve.
  • the inclined surface B21 on B2 slides relative to each other, and moves the guide sleeve in the axial direction of the hub, and the guide sleeve B2 forces the power receiving port B1 to move along the axial direction of the hub through the boss B13 of the power receiving port B1;
  • the guide post B11 moves in the axial direction relative to the guide groove B44.
  • this type of process cartridge includes a developer unit containing a developer and a photosensitive unit equipped with a photosensitive member, which can be rotated relative to the photosensitive unit.
  • the hub B4 and the control mechanism for controlling the expansion and contraction of the power receiving port B1 are partially disposed on the developing unit.
  • the guide sleeve B2 is driven to rotate; and a part of the pressing rod B32 of the positioning ring B3 abuts On the relatively fixed portion of the photosensitive unit, the positioning ring B3 is not rotated relative to the photosensitive unit.
  • the structure of the above embodiment needs to be appropriately adjusted. Therefore, the present embodiment can provide an improved structure.
  • a process cartridge C10 used in the present embodiment is a photosensitive unit C02 provided with a photosensitive member for forming an electrostatic latent image, and contains a developer inside and a developing unit C01 provided with a developing member for transferring the developer onto the photosensitive member; and a power receiving port for receiving power from the image forming device at the longitudinal ends of the developing unit C01 and the photosensitive unit C02, respectively, respectively disposed at the photosensitive
  • the developing element and the photosensitive element need to be intermittently separated, and thus the developing unit C01 is pivoted relative to the photosensitive unit C02 to realize separation of the photosensitive element and the developing element, and the photosensitive element can be obtained.
  • the position from the contact with the developing member reaches a position separated from each other.
  • the range of separation is small.
  • the embodiment provides a structure that can have a larger separation range, that is, changing the position of the rotation axis of the developing unit C01. As shown in FIG. 4, the rotation axis of the developing unit C01 with respect to the photosensitive unit C2 is C011.
  • the rotation axis C011 is disposed outside the meshing range of the second power receiving port C1 and the driving mechanism of the image forming apparatus, and is disposed outside the range in which the hub is projected in the axial direction.
  • FIG. 5 is an exploded perspective view of the process cartridge C10 according to the embodiment.
  • C01 is a developing unit
  • C02 is a photosensitive unit, and is disposed in parallel with the developing unit; both ends of the processing box are provided with a first end cap C03 and a second end cap C04, and the developing unit C01 is supported by end caps C03 and C04 at both ends Combined with the photosensitive unit C02.
  • the first power receiving port C1 is supported by a baffle C5 disposed at an end of the developing unit C01, and the end of the first power receiving port C1 passes through the first through hole on the second end cap C04 to leak into the toner cartridge.
  • the first power receiving port C021 passes through the second through hole C042 on the second end cover and leaks to the outside of the container; the rotating shaft C011 and the third hole C043 disposed on the second end cover C04 Cooperate.
  • the developing unit C01 is rotated about the axis C011, separation of the developing member C7 and the photosensitive member can be achieved.
  • the positioning ring C3 in the embodiment (the positioning ring B3 described in the first embodiment); the positioning ring C3 is coaxially disposed with the second power receiving port C1 and can be opposite to the first
  • the second power receiving port C1 rotates; the positioning ring C3 protrudes from the external force acting portion pressing rod C32 outside the radial direction of the power receiving port, and at least a part of the pressing rod C32 can be assembled with the second end cover after the process cartridge C10 is assembled.
  • a portion of the inner side of the C04 is in contact, at least a portion of the pressing rod is protruded outside the projection range of the hub in the axial direction, and when the developing unit C01 is rotated about the axis relative to the photosensitive unit C02, the first end cover C03 at this time And the second end cover C04 is relatively stationary with the photosensitive unit, so that the pressing rod C32 abuts on the second end cover C04, so that the positioning ring C3 does not move; and the second power receiving port C1 and the positioning ring C3 Same
  • the shaft is also provided with a guide sleeve (the guide sleeve as described in the first embodiment), and the guide sleeve is relatively fixed to the baffle C5 (the baffle B5 of the first embodiment); thus, when the developing unit C01 is rotated, the The guide sleeve rotates and rotates relative to the positioning ring C3; the positioning ring C3 and the guide sleeve pass through the inclined surface to make the guide
  • a second power receiving port of the first embodiment and a control mechanism for controlling the second power receiving port expansion and contraction are provided, and a cross coupling is disposed on the second power receiving port C1.
  • the second power receiving port C1 is set to three parts, which are a power receiving portion C11, an intermediate connecting portion C12, and an end transmitting portion C13; the portions are connected by a keyway.
  • a key C112 is disposed on one end of the power receiving portion C11, and the other end is an engaging portion C111 that meshes with the driving mechanism B20, and a groove C121 is disposed on the intermediate transmitting portion to cooperate with the key C112; the intermediate connecting portion C12 is further disposed.
  • a key C122 that cooperates with the groove C131 provided on the end transmitting portion C13.
  • the key and the slot are relatively slidable, and the sliding direction is perpendicular to the longitudinal direction of the process cartridge.
  • the power receiving portion of the second power receiving port may still be held on the second end cap C04, the second power receiving port
  • the intermediate connecting portion and the end transmitting portion inside C1 may slide radially and be offset from the central axis of the power receiving portion.
  • the second end cover C04 can also be used in this embodiment.
  • the hole C041 enlarges the hole C041 in the direction of the arrow N shown in Fig. 7, as shown by the hole C041a, when the developing unit C01 is under the control of the movable control mechanism d1 in the image forming apparatus with respect to the photosensitive
  • the developing unit can have more movable space in the direction of the arrow shown in FIG.
  • the baffle C5 supports the second power receiving port C1
  • the second end cap C04 supports the baffle C5 and is in the form of a shaft hole.
  • the process cartridge is provided with a developing unit E01.
  • One longitudinal end of the developing unit E01 is provided with a driving component E100.
  • the driving component E100 includes a baffle E5, a positioning ring E3, a guide sleeve E2, and an elastic component E6.
  • the power receiving port E1, the torsion spring member E9, the hub E4, and the bottom plate E012 that cooperate with the above components.
  • the baffle E5 is provided with a limiting port E51a; the positioning ring E3 is provided with an inclined surface E31 and an outwardly extending pressing rod E32; the guiding sleeve E21 is provided with an inclined surface E21, an axial limiting column E21a protruding from the outer circumferential surface, and the lower side An engaging post E21b protruding from the bottom surface; an end of the power receiving port E1 is provided with an engaging portion E111, an outer flange E15 on the outer circumference, a guide post E11 below the outer flange E15, and a barb E14 on the other end; the hub E4 A convex and hollow boss E41 is provided in the cavity; the torsion spring member E9 has a main body portion E9a, a first free end E91 and a second free end E92, and the first free end E91 protrudes in the radial direction of the torsion spring member E9.
  • the second free end E92 extends in the axial direction of the torsion spring member E9, and the torsion spring member E9 is preferably left-handed and processed from a metal material, and can be processed from a steel wire, and the cross section is preferably rectangular or circular. shape.
  • An action portion E012x is protruded outwardly from the bottom plate E012, and the action portion E012x is pushed and pushed by the action portion M1x of the movable control mechanism M1 provided inside the image forming apparatus. As shown in FIG. 8 and FIG.
  • the connection relationship between the above components is that the baffle E5 covers the positioning ring E3, the guide sleeve E2, the elastic member E6, the power receiving port E1, the torsion spring member E9, and the hub E4.
  • the positioning ring E3 is placed on the guide sleeve E2 and the inclined surface E31 is opposite to the inclined surface E21 of the guide sleeve E2.
  • the limiting post E21a of the guiding sleeve E2 abuts against the limiting opening E51a of the baffle E5 so that the guiding sleeve E2 can only follow
  • the hub E4 slides in the axial direction, the elastic member E6 is placed between the guide sleeve E2 and the power receiving port E1 to provide an elastic force to the guide sleeve E2, and the lower half of the power receiving port E1 is placed in the cavity of the hub E4.
  • the barb E14 is hooked to the bottom of the hub E4 through the hollow boss E41 so that the power receiving port E1 is relatively fixed to the hub E4, and the torsion spring member E9 is placed between the power receiving port E1 and the hub E4, and the torsion spring member E9 is The upper half is sleeved on the power receiving port E1 guide post E11, the lower half of the torsion spring part E9 is sleeved on the stud E41 and the second free end E92 is inserted in the hub E4; after the above components are assembled , its power accepts E1
  • the torsion spring member E9 and the hub E4 are coaxially disposed and restrained in the circumferential direction, and the baffle E5 is fixed to the bottom plate E012 such that the above-mentioned components are located between the baffle E5 and the bottom plate E012 and the meshing portion E111 of the power receiving port E1 Exposed from the through hole on the surface of the baffle E5.
  • the assembled drive assembly E100 is placed at one end of the developing unit E01 and covered by the second end cap C04 at one end of the process cartridge, and the engaging portion E111 of the power receiving port E1 is accessible from the second end cap C04.
  • the first through hole E041 is exposed, and the pressing lever E32 of the positioning ring E3 protrudes from the side not covered by the baffle E5 against the inner side of the second end cover C04 and close to the contact surface E04x of the first through hole E041.
  • the process cartridge is further provided with a photosensitive element E021x and a power receiving port E021 provided at one axial end of the photosensitive element E021x.
  • the power receiving port E021 of the photosensitive element E021x is disposed in the same direction and rotatably with the power receiving port E1 of the driving unit E100. It is placed in the second through hole E042 of the second end cover C04 and exposed.
  • the power receiving port E021 is referred to as a first power receiving port E021, and the power receiving port E1 is referred to as a second power receiving port E1.
  • the drive mechanism B20 driven by the motor is provided with two: a second drive mechanism M22 that is in meshing engagement with the second power receiving port E1 to transmit a driving force, and a meshing engagement with the first power receiving port E021 to transmit a driving force.
  • the second drive mechanism M22 and the first drive mechanism M21 are driven only by the only one motor provided in the image forming apparatus, and thus will simultaneously rotate while transmitting the driving force while stopping.
  • the movable control mechanism M1 provided inside the image forming apparatus, the control mechanism M1 is movable in a direction (direction X) substantially perpendicular to the axial direction of the power receiving port E1.
  • the motor simultaneously drives the second drive mechanism M22 and the first drive mechanism M21 to rotate and transmits the driving force to the first power receiving port E021 and the meshing engagement therewith.
  • the second power is accepted by the mouth E1.
  • the triggering control mechanism M1 is displaced, and the displacement control mechanism M1 is convexly raised.
  • the action portion M1x touches the activated portion E012x on the bottom plate E012 provided at one end of the developing unit E01 in the process cartridge.
  • the thrust F1 of the acting portion M1x will push the driven portion E012x, and after being applied by the acting portion E012x, the developing unit E01 is pivoted relative to the photosensitive unit E02 under the support of the first end cover and the second end cover (Fig. 5). Rotation, separation of the photosensitive element E02 and the developing element E01 is achieved.
  • the pressing lever E32 projecting from the driving member E100 will abut against the contact surface E04x of the second end cover E04 without
  • the pressing lever E32 is abutted to fix the positioning ring E3.
  • the inclined surface E21 of the guide sleeve E2 of the driving unit E100 is in contact with the relatively stationary inclined surface E31, so that the guide sleeve E2 moves toward the hub E4 in the axial direction of the hub E4 under the inclined surface contact and overcomes the elastic force of the elastic member E6.
  • Element E6 is pressed down. Since the limiting post E21a abuts against the limiting port 51a of the baffle E5, the guiding sleeve E2 slides only in the axial direction of the hub E4 without causing rotation relative to the baffle E5. Further, as the guide sleeve E2 is pressed down, the engaging post E21 on the lower bottom surface is also moved down to substantially the same height as the first free end E91 of the torsion spring member E9 and is in contact with the first free end E91.
  • the second power receiving port E1 transmits the driving force to the hub E4 via the torsion spring member E9 when the driving force is contacted with the second driving mechanism M22.
  • the second power receiving port E1 and the hub E4 have two states depending on whether or not the acting portion E012x is pushed by the thrust F1 applied by the acting portion M1x:
  • the torsion spring member E9 that is rotated by the rotation also drives the hub E4 to rotate about the axis.
  • the torsion spring member E9 is a left-turn L spring structure, and when the second power receiving port E1 is driven to rotate in the clockwise direction R, the rotation direction of the guide post E11 of the second power receiving port E1 and the torsion spring member E9 In the opposite direction of rotation, the first half of the torsion spring part E9 of the guide post E11 is tightened by the rotating guide post E11 to increase the frictional force T between the two, and finally the upper half of the torsion spring part E9 is completely realized with the guide post E11.
  • the second power receiving port E1 can drive the torsion spring member E9 to rotate, and the torsion spring member E9 that is driven to rotate also drives the hub E4 to rotate.
  • the hub E4 finally transmits the rotational force to the developing member of the developing unit E01 (refer to FIG. 5).
  • the upper half of the torsion spring part E9 of E11 is not tightened with the rotation of the guide post E11, and sufficient frictional force is not generated to achieve a tight (tight fit) state between the two, and the second power receiving port E1 will
  • the torsion spring member E9 cannot be driven to select, and the hub E4 that is connected to the torsion spring member E9 cannot rotate.
  • the second power receiving port E1 can transmit the driving force to the hub E4 and drive the hub E4 to rotate after receiving the driving force.
  • the second state when the acting portion M1x pushes the activated portion E012x to relatively rotate the developing unit E01, the second power receiving port E1 transmits the non-transmitting driving force to the hub E4 after receiving the driving force, and the second power receiving port E1 rotates relative to the hub E4 without causing the hub E4 to rotate.
  • the elastic member E09 in the process cartridge pushes the developing unit E01 back to the initial position before being pushed and rotated.
  • the power receiving port of the photosensitive unit in the process cartridge can be Rotating by a driving mechanism in the image forming apparatus, and the hub in the developing unit cannot be driven to be rotated by the driving mechanism in the image forming apparatus;
  • the acting portion of the image forming apparatus does not push the driven portion of the longitudinal end portion of the developing unit,
  • the power receiving port of the photosensitive unit in the process cartridge can be driven to rotate by a driving mechanism in the image forming apparatus, and the hub in the developing unit can be driven to be rotated by a driving mechanism in the image forming apparatus.

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Abstract

一种处理盒(C10)，可拆卸地安装于图像形成装置中，包括感光单元(C02)和显影单元(C01)，处理盒(C10)的纵向一端上设置有与图像形成装置内的可旋转的驱动机构啮合接收动力的动力受口(C1)，显影单元(C01)可相对所述感光单元(C02)绕一个旋转轴(C011)转动，旋转轴(C011)的回转轴线设置与所述动力受口(C1)的回转轴线不同轴，同时，图像形成装置内包括可活动的控制机构(M1)，显影单元(C01)上还设置有被作用部(E012x)，控制机构(M1)与被作用部(E012x)抵接，可控制显影单元(C01)与所述感光单元(C02)相对转动。解决了现有处理盒不需要处理盒参加显影时，处理盒内的显影元件仍然发生空转而影响显影元件的使用效果的技术问题。

Description

一种处理盒、以及包含该处理盒的图像形成装置 技术领域
本发明涉及一种处理盒、以及包含该处理盒的图像形成装置。
背景技术
本发明涉及一种处理盒，该处理盒可拆卸地安装于一种基于静电印刷技术的图像形成装置，该种图像形成装置可以是激光图像形成装置、LED图像形成装置、复印机、传真机中的任意一种。
现有技术中的一种处理盒，包含有感光单元以及可以作用于显影单元的感光单元。所述感光单元内设置有经设置在图像形成装置内的激光照射后可形成静电潜像的感光元件；所述显影单元上设置有可以将显影单元内承载的显影剂转移到感光元件上的显影元件，从而形成显影剂图像，再通过感光元件将显影剂图像转移到打印介质上。所述的感光单元内还设置有清洁刮刀，用于清洁感光元件上经转印上剩余的显影剂。
在现有技术中，特别在彩色成像装置中，由于需要多种颜色的显影剂相互混合才能打印出彩色的印品，所以在彩色图像形成装置中会安装多个不同颜色的处理盒，如黑色，青色，品红色以及黄色的显影剂，以提供不同颜色的显影剂在打印过程中进行混合。当只需要其中一种显影剂参与显影时，携带另外几种显影剂的处理盒不参与显影，当然也不需要参加清洁的步骤，为了避免在清洁过程，感光元件和显影元件相对转动并发生摩擦而影响二者的使用效果。因而，在这种情况下，需要暂时将不参与显影的几个处理盒中的显影元件和感光元件分离，因而可以通过显影单元和感光单元相对转动而产生分离。但是当显影元件和感光元件分离之后，处理盒上的接收动力的动力受口仍然与图像形成装置内的驱动机构啮合，为了避免显影元件在空转时与显影剂之间产生摩擦而影响显影元件的使用效果，因而需要在显影元件和感光元件分离的同时使显影单元上的动力受口与图像形成装置内驱动机构脱离 啮合。
发明内容
针对现有技术中的上述缺陷，本发明提供一种处理盒、以及包含该处理盒的图像形成装置，以解决现有处理盒不需要处理盒参加显影时，处理盒内的显影元件仍然发生空转而影响显影元件的使用效果。
本发明的第一个方面是为了提供一种处理盒，可拆卸地安装于图像形成装置中，包括感光单元和显影单元，所述处理盒的纵向一端上设置有从所述图像形成装置内的可旋转的驱动机构接收动力的动力受口，所述显影单元还包括可从所述动力受口接收动力的轮毂；
当所述显影单元没有相对所述感光单元转动时，所述动力受口将从驱动机构接收的动力传递至所述轮毂；
当所述显影单元相对所述感光单元转动时，所述动力受口不传递动力至所述轮毂。
进一步的，所述显影单元的纵向一端上设置有被作用部，所述被作用部被图像形成装置内部设置的可活动的控制机构触碰使显影单元转动。
进一步的，所述显影单元没有相对所述感光单元转动时，所述动力受口与所述驱动机构啮合；所述显影单元相对所述感光单元转动时，所述动力受口与所述驱动机构脱离。
进一步的，所述显影单元相对所述感光单元转动时，所述动力受口沿所述轮毂的轴向方向移动，所述动力受口的移动方向是远离驱动机构的方向。
进一步的，所述处理盒还包括定位圈，当所述显影单元相对所述感光单元转动时，所述定位圈的按压杆被抵接使动力受口与所述驱动机构脱离。
进一步的，所述按压杆伸出所述轮毂之外。
进一步的，所述显影单元没有相对所述感光单元转动时或所述显影单元相对所述感光单元转动时，所述动力受口与所述驱动机构都处于啮合。
进一步的，所述动力受口与所述轮毂之间设置有扭簧部件；当所述显影单元没有相对所述感光单元转动时，所述动力受口通过所述扭簧部件将动力传递至所述轮毂；当所述显影单元相对所述感光单元转动时，所述动力受口不能将动力通过所述扭簧部件传递至所述轮毂。
进一步的，所述显影单元没有相对所述感光单元转动时，所述动力受口通过拧紧扭簧部件从而将动力传递至所述轮毂。
进一步的，所述扭簧部件的旋向与所述动力受口从所述驱动机构所接收的动力的旋转方向相反。
进一步的，所述扭簧部件的上半部套接在动力受口上，所述扭簧部件的下半部套接在轮毂上。
进一步的，所述扭簧部件设有第一自由端，当所述显影单元相对所述感光单元转动时，所述第一自由端被抵挡使扭簧部件被相对固定。
进一步的，还包括定位圈和导套，所述定位圈可使所述导套进行沿所述轮毂的轴线方向滑动；所述定位圈有一伸出所述轮毂之外的按压杆，当所述显影单元相对所述感光单元转动时，所述按压杆被抵接使所述导套沿所述轮毂的轴线方向向内滑动并抵挡所述扭簧部件的第一自由端。
进一步的，所述定位圈设有倾斜面，所述导套设有倾斜面，所述定位圈的倾斜面下压所述导套的倾斜面使所述导套滑动。
进一步的，所述导套和所述动力受口之间设有一弹性元件。
进一步的，所述扭簧部件的下半部有一自由端，所述自由端插置在所述轮毂内。
本发明的第二个方面是为了提供一种处理盒，可拆卸地安装于图像形成装置中，包括感光单元和显影单元，所述处理盒的纵向一端上设置有与所述图像形成装置内的可旋转的驱动机构啮合接收动力的动力受口，所述显影单元可相对所述感光单元绕一个旋转轴转动，所述旋转轴的回转轴线设置与所述动力受口的回转轴线不同轴。
进一步的，还包括设置在所述处理盒的纵向端部用于将所述感光单元和显影单元连接的端盖，所述旋转轴设置在所述显影单元的端部，所述端盖上设置有与所述旋转轴配合的孔，所述孔支撑所述旋转轴。
进一步的，所述显影单元端部还设置有轮毂，所述动力受口设置在所述轮毂上，所述旋转轴设置在所述轮毂的轴向投影范围之外。
进一步的，所述感光单元上沿纵向方向设置有感光元件，所述显影单元上沿纵向方向设置有显影单元，显影单元可相对所述感光单元绕轴旋转时可使所述显影元件与所述感光元件从接触位置活动到分离位置。
进一步的，所述处理盒的纵向端部上还设置有用于控制所述动力受口伸缩的控制机构。
进一步的，所述控制机构包括定位圈，导套，所述定位圈上设置有形成高度差的定位圈倾斜面，所述导套上设置有形成高度差的导套倾斜面，所述定位圈倾斜面与所述导套倾斜面相互配合。
进一步的，所述控制机构设置在所述显影单元上，所述定位圈上还设置有用于接收外部作用力的按压杆，所述按压杆一端与所述定位圈固定连接，另一端与所述端盖抵接，当所述显影单元相对于所述感光单元旋转时，所述定位圈与所述端盖相对固定，所述导套相对于所述定位圈转动，所述定位圈倾斜面与所述导套倾斜面相对滑动。
进一步的，所述按压杆伸出在所述轮毂的轴向投影范围之外。
进一步的，所述动力受口外圆周上设置有凸台，用于承接所述导套。
进一步的，所述控制机构还包括弹性元件，所述弹性元件在所述轮毂内沿轴线方向设置于所述轮毂内，并套设与所述动力受口上。
进一步的，所述弹性元件为弹簧，所述弹簧一端抵接于所述动力受口，另一端与所述轮毂内部抵接。
进一步的，所述动力受口包括动力接收部分、中间连接部分，以及端部传递部分，所述动力接收部分、中间连接部分，以及端部传递部分通过键槽连接，键与槽之间可相对滑动。
进一步的，所述端盖上设置有卡块，所述导套上设置有轴向限位接口，所述卡块与所述轴向限位接口配合。
进一步的，所述显影单元的纵向端部还设置有一挡板，所述挡板将所述动力受口以及所述控制机构限制在所述显影单元端部。
进一步的，所述挡板的一端设置有支撑轴，所述端盖上设置通孔，所述支撑轴与所述通孔配合。
进一步的，所述通孔的内径比所述支撑轴的外径大。
进一步的，所述旋转轴设置在所述挡板上。
本发明的第三个方面是为了提供一种图像形成装置，包括上述的处理盒，所述图像形成装置内还包括可活动的控制机构，所述显影单元上还设置有被作用部，所述控制机构与所述被作用部抵接，可控制所述显影单元与所述感 光单元相对转动。
本发明提供的一种处理盒、以及包含该处理盒的图像形成装置，通过控制机构控制动力受口伸缩，可以使动力受口整体回缩并与图像形成装置内的驱动机构脱离啮合。从而解决了不需要处理盒参加显影时，处理盒内的显影元件仍然发生空转而影响显影元件的使用效果的问题；并且解决了通过本发明的技术方案解决了显影单元相对于感光单元旋转范围不够大的问题。
附图说明
图1是本发明第一实施例提供的处理盒的立体视图；
图2是本发明第一实施例提供的动力受口与控制动力受口伸缩的控制机构的分解视图；
图3是本发明第一实施例的动力受口与控制动力受口伸缩的控制机构的装配剖面视图；
图4是本发明的第二实施例提供的处理盒的立体视图；
图5是本发明的第二实施例提供的处理盒的分解视图；
图6是本发明的第二实施例提供的第二动力受口的分解视图；
图7是本发明的第二实施例提供的处理盒的局部视图；
图8是本发明的第三实施例提供的驱动组件的分解视图；
图9是本发明的第三实施例提供的驱动组件的装配剖面视图；
图10是本发明的第三实施例提供的处理盒在图像形成装置中的示意图；
图11、图12是本发明的第三实施例提供的显影单元转动时的示意图；
图13、图14是本发明的第三实施例提供的显影单元转动时的示意图；
图15是本发明的第三实施例提供的扭簧部件的结构示意图；
图16a、图16b是本发明的第三实施例提供动力受口与扭簧部件配合的示意图；
图17a、图17b是本发明的第三实施例提供动力受口与扭簧部件配合的示意图；
图18是本发明的第三实施例的动力受口与扭簧部件配合的示意图。
具体实施方式
下面结合附图，对本发明的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
实施例一
图1至3为本发明的第一实施例的优选实施方式。如图1所示，B10为本发明提供的一种处理盒的实施方式，B20为设置在图像形成装置内部从电机接收动力的驱动机构，设置在处理盒的一个纵向端部上的动力受口B1用于当将处理盒安装到图像形成装置中后与所述驱动机构B20啮合，挡板B5为设置在处理盒纵向端部并将动力受口以及控制动力受口伸缩的控制机构保持在处理盒上。
图2为动力受口与控制动力受口伸缩的控制机构之间的装配示意图。其中，动力受口B1设置在轮毂B4中，并可相对于轮毂B4沿轮毂B4的轴线方向滑动；所述轮毂B4外圆周上设置有斜齿轮，用于从动力受口B1接收动力后，将动力传递至处理盒内部设置的旋转部件上，旋转部件如感光元件，显影元件等。本实施例中所提供的导套B2上设置有沿轴向方向形成高度差的导套倾斜面B21；本实施例所提供的与外部作用力作用的部分相连的定位圈B3上设置有沿轴向方向形成高度差的倾斜面B31；在装配后，定位圈B3上的倾斜面B31与导套B2上的倾斜面B21相互配合；挡板B5内沿轮毂的轴线方向设置有卡块B51(如图3所示)，导套B2上设置有轴向限位接口B22，即卡槽；通过卡块B51与轴向限位接口B22的配合，可以限制导套B2与挡板B5的相对转动；同时，动力受口B1外圆周上设置有传递部B12，轮毂内圆周设置有槽部B43，装配动力受口B1时，将传递部B12插入所述槽部B43，并以槽部B43的侧壁为受力部，可通过动力受口B1将动力传递给轮毂B4；轮毂B4内还设置有中空内腔B42，动力受口B1设置在轮毂B4的中空内腔B42中，中空内腔B42还包括一个导槽B44，所述动力受口B1上设置有导柱B11；所述导柱B11与所述导槽B44相互配合；在所述动力受口与所述轮毂之间还设置有一弹性元件，如压缩弹簧B6，如图3所示，所述弹簧沿所述轮毂轴向设置在所述轮毂内并套设于所述动力受口上，其一端与所述动力受口抵接，另一端与所述轮毂内底面抵接。进一步地，在动力受口B1的外圆周上还设置有凸台B13用于支撑导套B2，所述动力受口B1可以相对于所述导套B2转动。另外，动力受口B1上还设置有第一倒钩B14，用于与轮毂B4内设置的第二 倒钩B45配合以防止动力受口B1从轮毂中脱出。所述的第一倒钩B14设置在传递部B12上，所述的第二倒钩B45设置在与所述槽部B43相对的位置。
本实施例中的定位圈B3的外侧还设置有能够接收外力作用的作用力部分，为与定位圈B3连接的按压杆B32，按压杆B32可伸出轮毂B4之外，当按压杆B32接收外力作用时，驱使所述定位圈B3转动，而导套B2相对不转动，当定位圈B3与所述导套B2产生相对转动后，通过所述定位圈B3上的倾斜面B31与所述导套B2上的倾斜面B21相对滑动，并使所述导套沿轮毂的轴线方向移动，所述导套B2通过动力受口上B1的凸台B13迫使动力受口B1沿轮毂的轴线方向移动；此时所述导柱B11相对于所述导槽B44沿轴向移动。当将处理盒安装到成像装置后，所述的动力受口B1与图像形成装置内的驱动机构B20啮合，当定位圈B3受到外力作用转动后，驱使所述定位圈B3转动，并通过斜面的作用，使动力受口B1沿轮毂B4的轴向方向移动(如图3所述的箭头方向)，当动力受口B1向远离驱动机构B20的方向移动时，可以实现与驱动机构B20脱离啮合；此时弹性元件B6受到压缩，当作用在定位圈B3上的外力被撤销后，在弹性元件B6的回弹力作用下，将动力受口B1和导套B2向外顶出，并促使定位圈B3转动；同时动力受口B1回复原始位置。
当然，本实施例中，也可以使定位圈B3不动，使导套B2转动，同样可以带动动力受口B1沿轮毂B4轴线方向移动。例如，在一种类型的处理盒中，该种类型的处理盒包括装有显影剂的显影单元以及装有感光元件的感光单元，所述的显影单元可相对于所述的感光单元转动。而轮毂B4和控制动力受口B1伸缩的控制机构部分设置在显影单元上，当显影单元与感光单元相对转动时，带动导套B2转动；而定位圈B3的按压杆B32的一部分抵接在与感光单元相对固定的部分上，使定位圈B3相对感光单元不转动。
实施例二
当将实施例一所述的动力受口以及控制动力受口轴向移动的结构应用到现有技术中的一种处理盒中时，上述实施例的结构需要作出适当的调整。因此，本实施例可以提供一种改进后的结构。
如图4所示，为本实施例采用的一种处理盒C10，该种处理盒由设置有用于形成静电潜像的感光元件的感光单元C02，以及内部容纳有显影剂并且 设置有将显影剂转移到感光元件上的显影元件的显影单元C01；在显影单元C01和感光单元C02的纵向端部分别设置有用于从图像形成装置接收动力的动力受口，分别为设置在感光单元C02纵向端部的第一动力受口C021，以及设置在显影单元C01纵向端部的第二动力受口C1。在现有技术中，在打印周期中，需要将显影元件和感光元件间歇性进行分离，因而通过显影单元C01相对于感光单元C02绕轴转动，实现感光元件和显影元件的分离，可使感光元件与显影元件从接触的位置到达相互分离的位置。而当显影单元C01绕第二动力受口C1的回转轴线转动时，分离的范围较小。本实施例提供一种可以有较大分离范围的结构，即改变显影单元C01的旋转轴的位置，如图4所示，所述显影单元C01相对于所述感光单元C2的旋转轴为C011，并与第二动力受口C1的回转轴线不同轴。所述的旋转轴C011设置在第二动力受口C1与图像形成装置的驱动机构的啮合范围之外，并设置在所述轮毂在轴向投影的范围之外。
图5所示为本实施例提供的处理盒C10的分解示意图。C01为显影单元，C02为感光单元，与所述显影单元平行设置；处理盒两端设置有第一端盖C03和第二端盖C04，并通过两端的端盖C03和C04支撑将显影单元C01和感光单元C02组合在一起。第一动力受口C1通过设置在显影单元C01端部的挡板C5支撑，所述的第一动力受口C1的端部穿过第二端盖C04上的第一通孔暴漏在粉盒外侧；所述的第一动力受口C021穿过第二端盖上的第二通孔C042暴漏在粉盒的外侧；所述旋转轴C011与第二端盖C04上设置的第三孔C043配合。当所述显影单元C01绕轴C011转动后，可实现显影元件C7和感光元件的分离。
如图5所示，本实施例中的定位圈C3(同实施例一所述的定位圈B3)；所述定位圈C3与所述第二动力受口C1同轴设置并可相对所述第二动力受口C1转动；定位圈C3上伸出在动力受口径向方向之外的外力作用部分按压杆C32，所述按压杆C32上的至少一部分在处理盒C10组装后可与第二端盖C04内侧的一个部分接触，所述按压杆的至少一部分伸出在所述轮毂在轴向的投影范围之外，当显影单元C01相对于感光单元C02绕轴旋转时，此时第一端盖C03和第二端盖C04与感光单元相对不动，因而所述按压杆C32抵接在第二端盖C04上，使所述定位圈C3不动；而与第二动力受口C1和定位圈C3同 轴设置的还有导套(同实施例一所述的导套)，所述导套与挡板C5(同实施例一挡板B5)相对固定；因而，当显影单元C01转动时，所述导套随之转动，并相对所述定位圈C3转动；所述定位圈C3与所述导套之间通过斜面的作用，使得所述导套沿处理盒纵向方向回缩(实现方式与实施例一一致)，并带动所述第二动力受口回缩，与所述图像形成装置内的驱动机构B20脱离啮合；另外，显影单元C01发生旋转的动力可以来自于图形形成装置内部设置的可活动的控制机构，如，通过图像形成装置内部设置的可活动的控制机构触碰显影单元上的一个被作用部C012。
所述的显影单元C01绕轴转动之后，所述的第二动力受口C1相对于所述第二端盖C04的孔C041不能移动，但是由于第二动力受口被固定在显影单元C01上，需要随之移动，两者之间产生矛盾。为解决此问题，本实施例中在实施例一的第二动力受口和控制所述第二动力受口伸缩的控制机构的基础之上，在第二动力受口C1上设置一个十字联轴结构，如图6所示。将第二动力受口C1设置成三个部分，分别为动力接收部分C11，中间连接部分C12，端部传递部分C13；各部分之间通过键槽的方式连结。如，在动力接收部分C11一端上设置键C112，另一端为与驱动机构B20啮合的啮合部C111，在中间传递部分上设置槽C121与所述键C112配合；所述中间连接部分C12上还设置有与所述端部传递部分C13上设置的槽C131配合的键C122。所述的键与槽之间可相对滑动，滑动方向垂直于处理盒的纵向方向。
因而，当所述显影单元C01相对于所述感光单元C02转动时，所述第二动力受口的动力接收部分可以仍被保持在所述第二端盖C04上，所述第二动力受口C1内部的中间连接部分和端部传递部分可以径向滑动并与所述动力接收部分的中心轴线错开。
为避免因动力受口上沿径向方向移动的部件在所述轮毂B4内的活动空间有限而影响感光单元C02与显影单元C01之间的转动，本实施例中还可以将第二端盖C04上的孔C041沿图7所示箭头N方向将所述孔C041扩大，如图示C041a孔，当所述显影单元C01在图像形成装置内的可活动的控制机构d1的控制下相对于所述感光单元C02所述绕w方向转动时，所述的显影单元可沿图7所示箭头方向具有更多的活动空间。在本方案中，所述挡板C5支撑所述第二动力受口C1，所述第二端盖C04支撑所述挡板C5，并以轴孔的方式 配合。当将孔C041扩大成孔C041a，所述孔C041a的内径比所述挡板C5上的支撑轴C51的外径大。
实施例三
图8至图18为第三实施例的优选实施方式。本实施例三中的部分部件结构和连接方式可参考上述实施例一或实施例二中的相同或类似的部件结构和部件间的连接方式，这里不再复述。
如图8所示，处理盒中设有显影单元E01，显影单元E01的一个纵向端部上设置有驱动组件E100，驱动组件E100包括挡板E5、定位圈E3、导套E2、弹性元件E6、动力受口E1、扭簧部件E9、轮毂E4以及与上述部件相配合的底板E012。挡板E5上设有限位口E51a；定位圈E3设有倾斜面E31以及外伸的按压杆E32；导套E21设有倾斜面E21、从外圆周面突出的轴向限位柱E21a和从下底面突出的啮合柱E21b；动力受口E1的一端上设有啮合部E111、外圆周上的外凸缘E15、外凸缘E15下方的导柱E11以及另一端上的倒钩E14；轮毂E4的空腔中设有凸起且中空的凸柱E41；扭簧部件E9具有主体部分E9a，第一自由端E91以及第二自由端E92，第一自由端E91沿扭簧部件E9的径向伸出，第二自由端E92沿扭簧部件E9的轴向伸出，扭簧部件E9的旋向优选为左旋且由金属材料加工而成，可以由钢丝加工而成，横截面优选为矩形或圆形的形状。底板E012上向外凸出有一被作用部E012x，该被作用部E012x与图像形成装置内部设置的可活动的控制机构M1的作用部M1x触碰推动。如图8和图9所示，上述的各部件之间的连接关系是：挡板E5覆盖着定位圈E3、导套E2、弹性元件E6、动力受口E1、扭簧部件E9以及轮毂E4，定位圈E3放置在导套E2上且倾斜面E31与导套E2的倾斜面E21相对，导套E2的限位柱E21a与挡板E5的限位口E51a抵接配合使导套E2只能沿轮毂E4的轴线方向滑动，弹性元件E6放置在导套E2与动力受口E1之间以提供弹性力至导套E2上，动力受口E1的下半部分放置在轮毂E4的空腔中，其倒钩E14穿过中空的凸柱E41卡接在轮毂E4的底部使动力受口E1相对固定在轮毂E4上，扭簧部件E9放置在动力受口E1与轮毂E4之间，扭簧部件E9的上半部套接在动力受口E1导柱E11上，扭簧部件E9的下半部套在凸柱E41上且第二自由端E92插置在轮毂E4内；在上述的各部件装配完成后，其动力受口E1、 扭簧部件E9、轮毂E4三者同轴设置并在周向上相互约束，挡板E5固定在底板E012使上述的各部件处在挡板E5与底板E012之间且动力受口E1的啮合部E111从挡板E5表面的通孔外露。参考图5的处理盒，装配好的驱动组件E100放置在显影单元E01的一端并被处理盒一端的第二端盖C04覆盖，而动力受口E1的啮合部E111可从第二端盖C04的第一通孔E041外露，定位圈E3的按压杆E32从未被挡板E5覆盖的侧面突出抵靠在第二端盖C04内侧且接近第一通孔E041的接触面E04x上。另外，处理盒中还设有感光元件E021x和设在感光元件E021x轴向一端的动力受口E021，感光元件E021x的动力受口E021与驱动组件E100的动力受口E1同一朝向设置且可旋转地放置在第二端盖C04的第二通孔E042中并外露。
在处理盒中，为便于区分及更好的理解，将上述的动力受口E021称为第一动力受口E021，动力受口E1称为第二动力受口E1。
在图像形成装置中，由电机驱动的驱动机构B20设置有两个：与第二动力受口E1接触啮合传递驱动力的第二驱动机构M22，以及与第一动力受口E021接触啮合传递驱动力的第一驱动机构M21。第二驱动机构M22与第一驱动机构M21仅由设置在图像形成装置中的唯一一个电机驱动，因此在传递驱动力时将同时转动，同时停转。
如图10所示，在图像形成装置中，图像形成装置内部设置的可活动的控制机构M1，控制机构M1可相对于与动力受口E1的轴向基本垂直的方向(方向X)进行移动。在处理盒装入到图像形成装置中并参与显影作业时，此时电机同时驱动第二驱动机构M22和第一驱动机构M21转动并将驱动力传递至与之啮合的第一动力受口E021和第二动力受口E1。由于图像形成装置中只有一个电机驱动，在某些情况下，第二动力受口E1不需要进行传递驱动力时，将触发控制机构M1进行位移，而随之位移的控制机构M1上凸起的作用部M1x将与设置在处理盒中的显影单元E01一端的底板E012上的被作用部E012x触碰。作用部M1x的推力F1将推动被作用部E012x，而被作用部E012x受力后使显影单元E01在第一端盖和第二端盖(如图5)的支撑下相对于感光单元E02绕轴转动，实现感光元件E02和显影元件E01的分离。
如图11至图14所示，在显影元件E01受力转动的过程中，从驱动组件E100上外伸出的按压杆E32将抵接在第二端盖E04的接触面E04x上而不会 随显影元件E01的受力转动，因此，相对于显影元件E01一端的驱动组件E100整体进行转动时，按压杆E32因受抵接而使定位圈E3固定不动。此时随驱动组件E100的导套E2的倾斜面E21与相对静止的倾斜面E31接触使导套E2在斜面接触下沿轮毂E4的轴线方向朝轮毂E4移动并克服弹性元件E6的弹性力对弹性元件E6进行下压。由于限位柱E21a与挡板E5的限位口51a抵接配合，使导套E2只沿轮毂E4的轴向方向滑动而不产生相对于挡板E5的转动。另外，随着导套E2的下压，处于下底面的啮合柱E21也随之下移至与扭簧部件E9的第一自由端E91基本同样的高度且可与第一自由端E91进行接触。
如图15至图17b所示，为第二动力受口E1在与第二驱动机构M22接触啮合接收驱动力时通过扭簧部件E9将驱动力传送至轮毂E4的状态。在下列状态中，根据被作用部E012x是否被作用部M1x施加的推力F1推动，第二动力受口E1与轮毂E4具有两种状态：
状态一：如图16a和图16b所示，当作用部M1x没有推动被作用部E012x时，导套E2在弹性元件E6的弹性力下，导套E2的啮合柱E21b远离扭簧部件E9的第一自由端E91，啮合柱E21b不会与第一自由端E91接触。第二驱动机构M22传递驱动力至第二动力受口E1时，第二动力受口E1将带动扭簧部件E9进行绕轴旋转，而由于扭簧部件E9的第二自由端E92插置在轮毂E4内，由被带动旋转的扭簧部件E9也会带动轮毂E4绕轴旋转。具体地，扭簧部件E9为左旋L的弹簧结构，当第二动力受口E1被驱动后绕顺时针方向R旋转时，第二动力受口E1的导柱E11的旋转方向与扭簧部件E9旋向相反，套接在导柱E11扭簧部件E9的上半部被旋转的导柱E11拧紧进而增加两者间的摩擦力T，最后扭簧部件E9的上半部完全与导柱E11实现抱紧(紧配)状态，第二动力受口E1即可带动扭簧部件E9进行旋转，而被带动旋转的扭簧部件E9也同时带动轮毂E4旋转。轮毂E4最后将旋转力传递至显影单元E01的显影元件(参考图5所示)中。
状态二：如图17a和图17b所示，当作用部M1x推动被作用部E012x时，啮合柱E21b随着导套E2的下移接近扭簧部件E9并与第一自由端E91进行接触配合，扭簧部件E9的第一自由端E91被下移的啮合柱E21b产生的阻挡力DF抵挡。在第二动力受口E1被驱动后绕顺时针方向R旋转时，由于第一自由端E91被抵挡使扭簧部件E9整体被相对固定而不能活动，因此套接在导柱 E11的扭簧部件E9的上半部不会随着导柱E11的转动而被拧紧，也产生不了足够的摩擦力实现两者间的抱紧(紧配)状态，第二动力受口E1将不能带动扭簧部件E9进行选择，而与扭簧部件E9进连接的轮毂E4也不能带动旋转。
即，在上述的状态一中，当作用部M1x没有推动被作用部E012x时，第二动力受口E1在接收驱动力后可将驱动力传递至轮毂E4中并带动轮毂E4旋转。而在状态二中，当作用部M1x推动被作用部E012x使显影单元E01相对旋转时，第二动力受口E1在接收驱动力后将不传递驱动力传递至轮毂E4中，第二动力受口E1相对于轮毂E4旋转而不带动轮毂E4旋转。
在作用部M1x不再作用至作用部E012x时，处理盒中的弹性元件E09推动显影单元E01回复至受推旋转前的初始位置。
另外，如图18所示，若第二动力受口E1朝逆时针方向L旋转时，即与扭簧部件E9的旋向L相同，那么扭簧部件E9将不会被旋转中的导柱E11拧紧，因而产生不了足够的摩擦力实现两者间的抱紧(紧配)状态。
在上述的实施例一、二、三中，当图像形成装置的作用部推动显影单元纵向端部的被作用部使显影单元相对于感光单元旋转时，处理盒中的感光单元的动力受口可被图像形成装置中的驱动机构驱动旋转，而显影单元中的轮毂不能被图像形成装置中的驱动机构驱动进行旋转；当图像形成装置的作用部没有推动显影单元纵向端部的被作用部时，处理盒中的感光单元的动力受口可被图像形成装置中的驱动机构驱动旋转，而显影单元中的轮毂可被图像形成装置中的驱动机构驱动进行旋转。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (34)

  1. 一种处理盒，可拆卸地安装于图像形成装置中，包括感光单元和显影单元，所述处理盒的纵向一端上设置有从所述图像形成装置内的可旋转的驱动机构接收动力的动力受口，其特征在于：所述显影单元还包括可从所述动力受口接收动力的轮毂；
    当所述显影单元没有相对所述感光单元转动时，所述动力受口将从驱动机构接收的动力传递至所述轮毂；
    当所述显影单元相对所述感光单元转动时，所述动力受口不传递动力至所述轮毂。
  2. 根据权利要求1所述的处理盒，其特征在于：所述显影单元的纵向一端上设置有被作用部，所述被作用部被图像形成装置内部设置的可活动的控制机构触碰使显影单元转动。
  3. 根据权利要求1或2所述的处理盒，其特征在于：所述显影单元没有相对所述感光单元转动时，所述动力受口与所述驱动机构啮合；所述显影单元相对所述感光单元转动时，所述动力受口与所述驱动机构脱离。
  4. 根据权利要求3所述的处理盒，其特征在于：所述显影单元相对所述感光单元转动时，所述动力受口沿所述轮毂的轴向方向移动，所述动力受口的移动方向是远离驱动机构的方向。
  5. 根据权利要求4所述的处理盒，其特征在于：所述处理盒还包括定位圈，当所述显影单元相对所述感光单元转动时，所述定位圈的按压杆被抵接使动力受口与所述驱动机构脱离。
  6. 根据权利要求5所述的处理盒，其特征在于：所述按压杆伸出所述轮毂之外。
  7. 根据权利要求1或2所述的处理盒，其特征在于：所述显影单元没有相对所述感光单元转动时或所述显影单元相对所述感光单元转动时，所述动力受口与所述驱动机构都处于啮合。
  8. 根据权利要求7所述的处理盒，其特征在于：所述动力受口与所述轮毂之间设置有扭簧部件；当所述显影单元没有相对所述感光单元转动时，所述动力受口通过所述扭簧部件将动力传递至所述轮毂；当所述显影单元相对 所述感光单元转动时，所述动力受口不能将动力通过所述扭簧部件传递至所述轮毂。
  9. 根据权利要求8所述的处理盒，其特征在于：所述显影单元没有相对所述感光单元转动时，所述动力受口通过拧紧扭簧部件从而将动力传递至所述轮毂。
  10. 根据权利要求9所述的处理盒，其特征在于：所述扭簧部件的旋向与所述动力受口从所述驱动机构所接收的动力的旋转方向相反。
  11. 根据权利要求9或10所述的处理盒，其特征在于：所述扭簧部件的上半部套接在动力受口上，所述扭簧部件的下半部套接在轮毂上。
  12. 根据权利要求11所述的处理盒，其特征在于：所述扭簧部件设有第一自由端，当所述显影单元相对所述感光单元转动时，所述第一自由端被抵挡使扭簧部件被相对固定。
  13. 根据权利要求11所述的处理盒，其特征在于：还包括定位圈和导套，所述定位圈可使所述导套进行沿所述轮毂的轴线方向滑动；所述定位圈有一伸出所述轮毂之外的按压杆，当所述显影单元相对所述感光单元转动时，所述按压杆被抵接使所述导套沿所述轮毂的轴线方向向内滑动并抵挡所述扭簧部件的第一自由端。
  14. 根据权利要求13所述的处理盒，其特征在于：所述定位圈设有倾斜面，所述导套设有倾斜面，所述定位圈的倾斜面下压所述导套的倾斜面使所述导套滑动。
  15. 根据权利要求13或14所述的处理盒，其特征在于：所述导套和所述动力受口之间设有一弹性元件。
  16. 根据权利要求11所述的处理盒，其特征在于：所述扭簧部件的下半部有一自由端，所述自由端插置在所述轮毂内。
  17. 一种处理盒，可拆卸地安装于图像形成装置中，包括感光单元和显影单元，所述处理盒的纵向一端上设置有与所述图像形成装置内的可旋转的驱动机构啮合接收动力的动力受口，其特征在于：所述显影单元可相对所述感光单元绕一个旋转轴转动，所述旋转轴的回转轴线设置与所述动力受口的回转轴线不同轴。
  18. 根据权利要求17所述的处理盒，其特征在于：还包括设置在所述处 理盒的纵向端部用于将所述感光单元和显影单元连接的端盖，所述旋转轴设置在所述显影单元的端部，所述端盖上设置有与所述旋转轴配合的孔，所述孔支撑所述旋转轴。
  19. 根据权利要求17所述的处理盒，其特征在于：所述显影单元端部还设置有轮毂，所述动力受口设置在所述轮毂上，所述旋转轴设置在所述轮毂的轴向投影范围之外。
  20. 根据权利要求17所述的处理盒，其特征在于：所述感光单元上沿纵向方向设置有感光元件，所述显影单元上沿纵向方向设置有显影单元，显影单元可相对所述感光单元绕轴旋转时可使所述显影元件与所述感光元件从接触位置活动到分离位置。
  21. 根据权利要求17-20任一所述的处理盒，其特征在于：所述处理盒的纵向端部上还设置有用于控制所述动力受口伸缩的控制机构。
  22. 根据权利要求21所述的处理盒，其特征在于：所述控制机构包括定位圈，导套，所述定位圈上设置有形成高度差的定位圈倾斜面，所述导套上设置有形成高度差的导套倾斜面，所述定位圈倾斜面与所述导套倾斜面相互配合。
  23. 根据权利要求22所述的处理盒，其特征在于：所述控制机构设置在所述显影单元上，所述定位圈上还设置有用于接收外部作用力的按压杆，所述按压杆一端与所述定位圈固定连接，另一端与所述端盖抵接，当所述显影单元相对于所述感光单元旋转时，所述定位圈与所述端盖相对固定，所述导套相对于所述定位圈转动，所述定位圈倾斜面与所述导套倾斜面相对滑动。
  24. 根据权利要求23所述的处理盒，其特征在于：所述按压杆伸出在所述轮毂的轴向投影范围之外。
  25. 根据权利要求20所述的处理盒，其特征在于：所述动力受口外圆周上设置有凸台，用于承接所述导套。
  26. 根据权利要求21所述的处理盒，其特征在于：所述控制机构还包括弹性元件，所述弹性元件在所述轮毂内沿轴线方向设置于所述轮毂内，并套设与所述动力受口上。
  27. 根据权利要求26所述的处理盒，其特征在于：所述弹性元件为弹簧，所述弹簧一端抵接于所述动力受口，另一端与所述轮毂内部抵接。
  28. 根据权利要求21所述的处理盒，其特征在于：所述动力受口包括动力接收部分、中间连接部分，以及端部传递部分，所述动力接收部分、中间连接部分，以及端部传递部分通过键槽连接，键与槽之间可相对滑动。
  29. 根据权利要求21-28任一所述的处理盒，其特征在于：所述端盖上设置有卡块，所述导套上设置有轴向限位接口，所述卡块与所述轴向限位接口配合。
  30. 根据权利要求21所述的处理盒，其特征在于：所述显影单元的纵向端部还设置有一挡板，所述挡板将所述动力受口以及所述控制机构限制在所述显影单元端部。
  31. 根据权利要求30所述的处理盒，其特征在于：所述挡板的一端设置有支撑轴，所述端盖上设置通孔，所述支撑轴与所述通孔配合。
  32. 根据权利要求31所述的处理盒，其特征在于：所述通孔的内径比所述支撑轴的外径大。
  33. 根据权利要求30所述的处理盒，其特征在于：所述旋转轴设置在所述挡板上。
  34. 一种图像形成装置，其特征在于：包括权利要求17-33任一所述的处理盒，所述图像形成装置内还包括可活动的控制机构，所述显影单元上还设置有被作用部，所述控制机构与所述被作用部抵接，可控制所述显影单元与所述感光单元相对转动。
PCT/CN2016/097875 2015-11-21 2016-09-02 一种处理盒、以及包含该处理盒的图像形成装置 WO2017084412A1 (zh)

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