WO2011050613A1 - 驱动组件，以及具有该驱动组件的感光鼓和处理盒 - Google Patents

驱动组件，以及具有该驱动组件的感光鼓和处理盒 Download PDF

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Publication number
WO2011050613A1
WO2011050613A1 PCT/CN2010/073622 CN2010073622W WO2011050613A1 WO 2011050613 A1 WO2011050613 A1 WO 2011050613A1 CN 2010073622 W CN2010073622 W CN 2010073622W WO 2011050613 A1 WO2011050613 A1 WO 2011050613A1
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WO
WIPO (PCT)
Prior art keywords
gear
force receiving
driving force
axial
claw
Prior art date
Application number
PCT/CN2010/073622
Other languages
English (en)
French (fr)
Inventor
周宏辉
贺咫涯
Original Assignee
珠海天威飞马打印耗材有限公司
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
Application filed by 珠海天威飞马打印耗材有限公司 filed Critical 珠海天威飞马打印耗材有限公司
Priority to US13/141,083 priority Critical patent/US8615184B2/en
Priority to EP10825976A priority patent/EP2495619A1/en
Publication of WO2011050613A1 publication Critical patent/WO2011050613A1/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
    • G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
    • G03G15/757—Drive mechanisms for photosensitive medium, e.g. gears
    • 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
    • G03G21/1839—Means for handling the process cartridge in the apparatus body
    • G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
    • G03G21/186—Axial couplings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19614—Disconnecting means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears

Definitions

  • the present invention relates to a drive assembly, a photosensitive drum constructed using such a drive assembly, and a process cartridge.
  • the present invention is based on a Chinese utility model patent application filed on Oct. 27, 2009, with the application number 200920238326.2, the content of which is incorporated herein by reference.
  • Electrophotographic image forming apparatuses include copying machines, laser printers, and the like.
  • a process cartridge inside the electrophotographic image forming apparatus there is usually a process cartridge inside the electrophotographic image forming apparatus, and the process cartridge can be mounted to and detached from the main assembly of the electrophotographic image forming apparatus.
  • a process cartridge prepared by integrally assembling at least one of a developing device, a charging device, and a cleaning device as a processing device into a casing.
  • the existing process cartridge includes the following types: a first process cartridge prepared by assembling a photosensitive drum and a unit composed of a developing device, a charging device, and a cleaning device in a cartridge; by integrally assembling the photosensitive drum and the charging device in the cartridge And a second process cartridge prepared; and a third process cartridge prepared by integrally assembling the photosensitive drum and two processing units composed of a charging device and a cleaning device.
  • the user himself can detachably mount the above process cartridge to the main assembly of the electrophotographic image forming apparatus. Therefore, the user can perform maintenance of the equipment without relying on professional service personnel, thereby improving the operability of the user for the maintenance of the electrophotographic image forming apparatus.
  • the above-described conventional process cartridge it is used to receive a rotational driving force from the apparatus main assembly to drive the photosensitive drum drive mechanism as follows.
  • a rotatable member for transmitting a driving force of the motor, and a non-circular torsion hole for transmitting a driving force of the motor.
  • the torsion hole is disposed at a central portion of the rotatable member, and is provided with a plurality of corner portions and has a A cross section in which the rotatable member rotates integrally.
  • a non-circular torsion projection is provided which is provided at one of the axial ends of the photosensitive drum and has a cross section provided with a plurality of corners.
  • the main object of the present invention is to provide a drive assembly with improved structure and reliability
  • Another object of the present invention is to provide a photosensitive drum constructed with a structurally improved and reliable driving assembly
  • the present invention provides a drive assembly including a gear having a fixed end, an axial adjustment assembly having a rotary drive force receiving head extending beyond the other end of the gear, the axial adjustment assembly being The gear axial direction and a first direction perpendicular to the axial direction are disposed in a reciprocating manner relative to the gear, and an elastic support member and an axial direction are disposed between the axial adjustment component and the gear Limiting parts.
  • the axial adjustment assembly includes a first motion subassembly, a trough member, and a central shaft member;
  • the trough member has upper and lower chutes and sliding grooves that are spatially perpendicular to each other, the first motion subassembly being in a first direction Forming a relative sliding fit with the upper chute;
  • the central shaft member being coaxial with the gear, forming a relative sliding fit with the glide groove in a second direction; the first direction and the second direction are both vertical In the axial direction of the gear.
  • the first motion subassembly includes the rotary driving force receiving head and an adjusting slider, and the rotating driving force receiving head is rotatably coupled to the adjusting slider about an axis thereof at an angle.
  • a rotation limit pin is disposed between the rotary driving force receiving head and the adjustment slider.
  • the rotary driving force receiving head includes an outer end portion, an intermediate portion, and a shaft portion, the shaft portion being provided with a pin hole through which the rotation limit pin passes; a center position of the outer end portion is formed a concave spherical surface, the peripheral edge of the spherical surface being formed with a first claw extending outward in the axial direction, a second claw, and a first section separated by the first and second claws and a second cutting surface; the surface of the first claw has a first occlusal surface, a first inclined surface and a second inclined surface, and the surface of the second protruding claw has a second occlusal surface, a third inclined surface and a fourth inclined surface, wherein The first slope, the second slope, the third slope, and the fourth slope are each formed at an outer peripheral edge of the outer end.
  • a still further solution is that the first and second claws, the first and second cutting surfaces are respectively symmetrical with respect to an axis of the rotational driving force receiving head.
  • the adjustment slider is composed of a base and a boss formed on the base, and the inside of the boss has an axial through hole, the through hole having a diameter larger than the rotary driving force receiving head
  • the diameter of the shaft portion is smaller than the diameter of the intermediate portion of the rotary driving force receiving head
  • the first side of the base has a first limiting protrusion projecting outward
  • the second side has an outwardly extending portion a second limiting bump
  • a groove for accommodating the rotation limiting pin on a bottom surface of the base the groove is formed around the through hole, and the first limiting position is oppositely disposed in the groove Stop and second limit stop.
  • the central shaft member is composed of a head portion and a rod portion, the head portion is in the shape of a drum-shaped thin plate, and the cross-sectional shape of the rod portion is a drum shape, and the cross-sectional area is smaller than the area of the head portion.
  • the axial limiting member is a limiting pin, and the bottom of the rod portion is provided with a pin hole penetrating the rod portion in the radial direction, and the pin hole is engaged with the limiting pin.
  • the outer circumferential surface of the gear has a transmission ring gear
  • the gear is internally provided with a partition plate perpendicular to the axial direction and a gear cavity located above the partition plate, and a central position of the partition plate is provided with a positioning seat.
  • a through hole having an axial through is opened.
  • the cross-sectional shape of the through hole and the stem portion are both drum shapes.
  • the elastic support member is a spiral compression spring.
  • the photosensitive drum provided by the present invention comprises a drum main body and a driving assembly fixed at one axial end of the drum main body.
  • the drive assembly includes a gear having a fixed end; an axial adjustment assembly having a rotational drive force receiving head extending beyond the other end of the gear; the axial adjustment assembly being axially and perpendicular to the gear a first direction of the axial direction is disposed in the gear in a reciprocating manner relative to the gear, and an elastic support member and an axial limiting member are disposed between the axial adjustment assembly and the gear; the axial direction
  • the adjustment assembly includes a first motion subassembly, a trough member, and a central shaft member; the trough member having upper and lower sliding slots that are spatially perpendicular to each other, the first motion subassembly being in the first direction and the upper portion
  • the chute forms a relative sliding fit;
  • the central shaft member is coaxial with the gear, which forms a relative sliding fit with the glide groove in a second
  • the first motion subassembly includes the rotary driving force receiving head and an adjusting slider, and the rotating driving force receiving head is rotatably coupled to the adjusting slider about an axis thereof at an angle.
  • a rotation limit pin is disposed between the rotary driving force receiving head and the adjustment slider.
  • the rotary driving force receiving head includes an outer end portion, an intermediate portion, and a shaft portion, the shaft portion being provided with a pin hole through which the rotation limit pin passes; a center position of the outer end portion is formed a concave spherical surface, the peripheral edge of the spherical surface being formed with a first claw extending outward in the axial direction, a second claw, and a first section separated by the first and second claws and a second cutting surface; the surface of the first claw has a first occlusal surface, a first inclined surface and a second inclined surface, and the surface of the second protruding claw has a second occlusal surface, a third inclined surface and a fourth inclined surface, wherein a first inclined surface, a second inclined surface, a third inclined surface and a fourth inclined surface are respectively formed on an outer peripheral edge of the outer end portion; the first claw and the second claw, the first cutting surface and the second cutting surface respectively
  • the axis of the rotary driving force receiving head forms a central
  • the central shaft member is composed of a head portion having a drum-shaped thin plate shape, and a rod portion having a cross-sectional shape smaller than an area of the head portion;
  • the axial limiting member is a limiting pin, and the bottom of the rod portion is provided with a pin hole penetrating the rod portion in the radial direction, the pin hole is engaged with the limiting pin;
  • the outer circumferential surface of the gear has a transmission tooth a ring, the gear is internally provided with a partition perpendicular to the axial direction and a gear chamber located above the partition, the central position of the partition is provided with a positioning seat, and the positioning seat is provided with an axial through hole;
  • the through hole And the cross-sectional shape of the rod portion is a drum shape;
  • the elastic support member is a spiral compression spring.
  • the process cartridge provided by the present invention includes a casing; a photosensitive drum rotatably mounted in the casing; the photosensitive drum includes a drum main body and a driving assembly fixed at one axial end of the drum main body; the driving assembly includes a fixed end gear; an axial adjustment assembly having a rotational drive force receiving head extending beyond the other end of the gear; the axial adjustment assembly being axially and vertically perpendicular to the axial direction a direction is disposed in the gear in a reciprocating manner relative to the gear, and an elastic support member and an axial limiting member are disposed between the axial adjustment assembly and the gear; the axial adjustment assembly includes a first motion a sub-assembly, a trough member, and a central shaft member; the trough member having upper and lower sliding grooves that are spatially perpendicular to each other, the first moving sub-assembly forming a relative sliding fit with the upper chute in the first direction
  • the central shaft member is coaxial with the gear, and forms
  • the first motion subassembly includes the rotary driving force receiving head and an adjusting slider, and the rotating driving force receiving head is rotatably coupled to the adjusting slider about an axis thereof at an angle.
  • a rotation limit pin is disposed between the rotary driving force receiving head and the adjustment slider.
  • the rotary driving force receiving head includes an outer end portion, an intermediate portion, and a shaft portion, the shaft portion being provided with a pin hole through which the rotation limit pin passes; a center position of the outer end portion is formed a concave spherical surface, the peripheral edge of the spherical surface being formed with a first claw extending outward in the axial direction, a second claw, and a first section separated by the first and second claws and a second cutting surface; the surface of the first claw has a first occlusal surface, a first inclined surface and a second inclined surface, and the surface of the second protruding claw has a second occlusal surface, a third inclined surface and a fourth inclined surface, wherein a first inclined surface, a second inclined surface, a third inclined surface and a fourth inclined surface are respectively formed on an outer peripheral edge of the outer end portion; the first claw and the second claw, the first cutting surface and the second cutting surface respectively
  • the axis of the rotary driving force receiving head forms a central
  • the central shaft member is composed of a head portion having a drum-shaped thin plate shape, and a rod portion having a cross-sectional shape smaller than an area of the head portion;
  • the axial limiting member is a limiting pin, and the bottom of the rod portion is provided with a pin hole penetrating the rod portion in the radial direction, the pin hole is engaged with the limiting pin;
  • the outer circumferential surface of the gear has a transmission tooth a ring, the gear is internally provided with a partition perpendicular to the axial direction and a gear chamber located above the partition, the central position of the partition is provided with a positioning seat, and the positioning seat is provided with an axial through hole;
  • the through hole And the cross-sectional shape of the rod portion is a drum shape;
  • the elastic support member is a spiral compression spring.
  • Figure 1 is a schematic structural view of an embodiment of a photosensitive drum
  • Figure 2 is a schematic structural view of the embodiment of the drive assembly of Figure 1;
  • Figure 3 is a partial cross-sectional view of the drive assembly of Figure 2;
  • Figure 4 is an exploded perspective view of the drive assembly of Figure 2;
  • Figure 5 is a schematic structural view of the rotary driving force receiving head of Figure 4.
  • Figure 6 is a rear elevational view of the rotary driving force receiving head of Figure 5;
  • Figure 7 is a schematic structural view of the adjusting slider of Figure 4.
  • Figure 8 is a bottom plan view of the adjustment slider shown in Figure 7;
  • Figure 9 is a schematic structural view of the groove member of Figure 4.
  • Figure 10 is a schematic structural view of the central shaft member of Figure 4.
  • Figure 11 is a bottom plan view of the central shaft member shown in Figure 10;
  • Figure 12 is a schematic structural view of the gear of Figure 4.
  • Figure 13 is a schematic view showing the structure of the gear shown in Figure 12;
  • Figure 14 is a schematic structural view of the first motion subassembly of the drive assembly of Figure 2;
  • Figure 15 is a bottom plan view of the first moving subassembly of Figure 14;
  • Figure 16 is a schematic structural view of the axial adjustment assembly of the drive assembly of Figure 2;
  • 17a to 17d are schematic diagrams showing the process of the cooperation between the driving assembly and the printer driving head during the process of dropping the process cartridge containing the photosensitive drum shown in FIG. 1;
  • 18a to 18d are schematic diagrams showing the cooperation process of the driving assembly and the printer driving head during the offline process of the process cartridge containing the photosensitive drum shown in FIG. 1.
  • the process cartridge according to the present invention is substantially the same as the various conventional process cartridges described in the background art, and the photosensitive drum is also substantially the same as the photosensitive drum in the prior art, except that it is constructed at one axial end of the photosensitive drum.
  • the drive assembly is therefore only described in detail below with respect to the embodiment of the drive assembly, and the embodiment of the process cartridge and the photosensitive drum will not be described again.
  • the drive unit 1 shows an embodiment of a photosensitive drum 10 in which a drive unit 1 of the present invention is constructed.
  • the drive unit 1 is fixed to one end of a drum main body 20 of a photosensitive drum 10, and a photosensitive layer is provided on a circumferential surface of the drum main body 20.
  • the drive unit 1 is for receiving a rotational driving force from the printer driving mechanism, and transmits the rotational driving force to the drum main body 20 to rotate the drum main body 20 about its axis under the rotational driving force.
  • the 2 to 4 show the basic configuration of the drive unit 1, and the structure mainly includes a gear 2, a rotary driving force receiving head 3, an adjustment slider 4, a groove member 5, a rotation limit pin 6, a center shaft member 9, and a limit.
  • the plug 7 and the helical compression spring 8 are provided.
  • the gear 2 is fixed to one end of the drum main body 20, the axis of the gear 2 coincides with the axis of the drum main body 20, and rotates about their common axis in synchronization with the drum main body 20.
  • the rotary driving force receiving head 3 is connected to the adjusting slider 4 by the rotation limiting pin 6, and the rotary driving force receiving head 3 can reciprocate about the axis thereof with respect to the adjusting slider 4 within a certain angular range; the spiral compression spring 8 sets On the central shaft member 9, the central shaft member 9 is fitted in the gear 2 by a limit pin 7.
  • the rotational driving force receiving head 3, the adjustment slider 4, the rotation limit pin 6, the groove member 5, and the center shaft member 9 constitute an axial adjustment assembly 11.
  • the axial adjustment assembly 11 is axially movable along the gear 2 by the compression of the helical compression spring 8, the restoring force of the helical compression spring 8 after the external force is lost, and the axial limit of the limit pin 7.
  • Z. A limited axial reciprocating translational motion with respect to the gear 2. Further, referring to FIGS.
  • the first motion sub-assembly 12 composed of the rotational driving force receiving head 3, the adjustment slider 4, and the rotation limit pin 6 may be along a first direction X perpendicular to the axial direction Z of the gear 2,
  • a first linear reciprocating translational movement is defined in the upper chute 51 with respect to the trough member 5; and the second sub-assembly 14 of the first moving sub-assembly 12 plus the trough member 5 can be perpendicular to the gear
  • the second direction Y of the axial direction Z is a second linear reciprocating translational movement with respect to the central shaft member 9, and the first direction X and the second direction Y are perpendicular to each other.
  • the rotational driving force receiving head 3 is substantially in the shape of a torch, and is composed of an outer end portion 30, an intermediate portion 36, and a shaft portion 37 which are thinned from top to bottom as shown in FIG. Both the 36 and the shaft portion 37 are cylindrical, and the shaft portion 37 is provided with a pin hole 38 through which the rotation limit pin 6 passes.
  • the center position of the outer end portion 30 is formed with a concave spherical surface 35, and the circumference of the spherical surface 35 is formed with a first claw 31 and a second claw 32 which extend in the axial direction, the first claw 31 and the second The claw 32 forms a center symmetry with respect to the axis 39 of the rotational driving force receiving head 3.
  • a circumference of the spherical surface 35 also forms a first section 33 and a second section 34 which are separated by the first claw 31 and the second claw 32 and which also form a central symmetry about the axis 39.
  • the surface of the first claw 31 has a first occlusal surface 313, a first inclined surface 311 and a second inclined surface 312, and the surface of the second claw 32 has a second occlusal surface 323, a third inclined surface 321 and a fourth inclined surface 322, wherein
  • the first occlusal surface 313 and the second occlusal surface 323, the first inclined surface 311 and the third inclined surface 321 , the second inclined surface 312 and the fourth inclined surface 322 respectively form a central symmetry with respect to the axis 39 , and the first inclined surface 311 , the second inclined surface 312 , and the first inclined surface 311
  • the three inclined faces 321 and the fourth inclined faces 322 are both formed at the outer peripheral edge of the outer end portion 30.
  • the adjustment slider 4 is composed of a substantially drum-shaped base 46 and a cylindrical boss 45 formed on the base 46.
  • the boss 45 has an axially through cylindrical through hole 47 therein.
  • the diameter of the through hole 47 is larger than the diameter of the shaft portion 37 of the rotational driving force receiving head 3, and smaller than the diameter of the intermediate portion 36 of the rotational driving force receiving head 3, so that only the shaft portion 37 can be passed therethrough.
  • the first side surface 48 of the base 46 has a first limiting protrusion 41 extending outwardly, and the second side surface 49 has a second limiting protrusion 42 extending outwardly.
  • the function of the two limiting protrusions is The distance by which the adjustment slider 4 moves in the groove plane of the groove member 5 is controlled.
  • the groove 410 is formed around the through hole 47.
  • the groove is provided with two opposite first limiting blocks 43 and a second limit.
  • the position stop 44 enables the rotational limit pin 6 mounted in the pin hole 38 to be able to rotate only about the axis 411 of the adjustment slider 4 over a range of angles.
  • the groove member 5 is a grooved cylinder having a top portion having a radially extending upper sliding groove 51 at the top thereof and a radially extending downward sliding groove 52 having a cross section of the upper sliding groove 51 and the sliding groove 52. They are roughly "convex" shaped, and they are spatially perpendicular to each other.
  • the base 46 of the adjustment slider 4 is slidable in the radial direction relative to the groove member 5 in the upper chute 51, and the head of the center shaft member 9 is reciprocally reciprocally with respect to the groove member 5 in the sliding groove 52. slide.
  • the central shaft member 9 is composed of a head portion 91 and a rod portion 92, and has a substantially T-shape.
  • the head portion 91 has a drum-shaped thin plate shape, and the cross-sectional shape of the rod portion 92 is also a drum shape, but the cross-sectional area of the rod portion 92 is smaller than the area of the head portion 91.
  • the bottom of the rod portion 92 is provided with a pin hole 93 penetrating the rod portion 92 in the radial direction, and the pin hole 93 is engaged with the limit pin 7.
  • the interior of the stem 92 has a cavity 94.
  • the outer circumferential surface of the gear 2 has a transmission ring gear 24, and the gear 2 is internally provided with a partition 25 perpendicular to the axial direction and a gear chamber 21 above the partition 25, the center of which is The position is provided with an upwardly convex positioning seat 23, and the positioning seat 23 is provided with a drum-shaped hole 22 having a shape substantially equal to the cross-sectional shape of the rod portion 92 of the central shaft member 9, and the rod portion 92 is substantially equal in size. Axial movement can only be achieved within the drum bore 22.
  • the circumferential side wall 26 of the gear chamber 21 is a first linear reciprocating translational movement of the first motion subassembly 12 in the first direction X and a second linear reciprocating translational motion of the second motion subassembly 14 in the second direction Y. Limits are provided.
  • the moving sub-assembly 12 is composed of a rotary driving force receiving head 3, an adjusting slider 4 and a rotation limiting pin 6, and the shaft portion 37 of the rotational driving force receiving head 3 passes through the through hole of the adjusting slider 4. 47.
  • the rotation limit pin 6 passes through the pin hole 38 of the shaft portion 37 and is placed in the groove 410 at the bottom of the adjustment slider 4.
  • the axial adjustment unit 11 is composed of a rotary driving force receiving head 3, an adjustment slider 4, a rotation limit pin 6, a groove member 5, and a center shaft member 9.
  • the axial adjustment assembly 11 is axially reciprocally movable relative to the gear 2 along the axial direction Z of the photosensitive drum.
  • FIG. 17a to 17d are views showing the operation of the process cartridge (only the end portion of the photosensitive drum) in which the drive unit 1 is mounted, which falls into the printer, and the process cartridge falls into the printer in a direction Xa perpendicular to the axis of the photosensitive drum.
  • Fig. 18a to Fig. 18d are diagrams showing the operation of the process cartridge with the drive unit 1 taken out of the printer, and the process cartridge is detached from the printer in the direction Xb of the vertical drum axis.
  • the axial adjustment assembly 11 in the drive assembly 1 integrally moves inward in the direction Za, and the axial adjustment assembly 11 as a whole moves outward in the direction Zb; see Fig. 14, ⁇ a represents the clockwise rotation direction of the rotational driving force receiving head 3, and ⁇ b represents The rotational driving force receives the counterclockwise rotation direction of the head 3.
  • the printer driving lever 13 will touch the two inclined faces 311, 312 of the first claw 31, and the two faces must have a weaker force on the face, when the second When the inclined surface 312 is weakly pressed, the printer driving lever 13 rubs the second inclined surface 312 to push the rotational driving force receiving head 3 to rotate by an angle in the direction ⁇ a, and then the printer driving lever 13 automatically cuts into the second oblique surface 312.
  • the second cutting surface 34 causes the axial adjustment assembly 11 in the driving assembly 1 to move integrally in the Za direction; when the first inclined surface 311 is weakly applied, the printer driving rod 13 wipes the first inclined surface 311 to push the rotational driving force.
  • the printer driving lever 13 is also automatically cut into the first cutting plane 33 adjacent to the first inclined surface 311, and causes the axial adjustment assembly 11 in the driving assembly 1 as a whole along the Za direction. mobile. Since the second claw 32 is centrally symmetrical with the first claw 31, when the initial contact position is the second claw 32, the action process is similar to the above process;
  • the printer drive rod 13 will automatically cut directly into the first cut surface 33 or the second cut surface 34, and cause the axial adjustment component in the drive assembly. 11 moves in the direction of Za as a whole.
  • the printer driving lever 13 is automatically coupled to the rotational driving force receiving head 3, and the rotational driving force receiving head 3 receives the rotational driving force from the printer to drive the drum main body 20 of the photosensitive drum 10 to rotate;
  • the rotational driving force receiving head 3 receives the driving force of the printer
  • the driving force from the printer may not be a constant value, and thus the first moving sub-assembly 12 and the second moving sub-assembly 14 in the driving assembly 1 are in a small range.
  • the inner staggered linear movement buffers the change value of the driving force of the printer, so that the photosensitive drum rotates smoothly, does not cause jumping and fluctuation, the processing box works normally, and the printing quality is excellent;
  • the limit pin can be implemented using other axial limit structures that are readily apparent to those skilled in the art.
  • the axial stop structure can be a separate member from the central shaft member or a member formed on the central shaft member. section.
  • the elastic supporting member may be replaced by an elastic member other than the spiral compression spring, for example, an elastic plastic member that can be compressed; the cross-sectional shape of the rod portion of the center shaft member and the shape of the through hole on the gear partition are not limited.
  • the drum shape may also be any shape having two flat sides, such as a rectangular shape, a flat quadrangular shape, or the like, as long as the axial adjustment assembly can only be axially translated relative to the gear, and cannot be moved radially and around the axis with respect to the gear. Turn it.
  • the axial adjustment assembly of the drive assembly of the present invention is reciprocally disposed in the gear axial direction relative to the gear, the elastic adjustment member and the axial limit member are disposed between the axial adjustment assembly and the gear when When the process cartridge of the above drive assembly is mounted in the printer, the rotary drive force receiving head on the axial adjustment assembly is always kept in line with the gear axis under the force of the elastic support member, and the axial limit is set due to The components, the axial adjustment components are not easily removed from the gears, ensuring the reliability and stability of the work.
  • the printer driver lever When in contact with the printer drive lever, The rotary driving force receiving head wipes the circular surface of the end of the printer driving rod with the respective inclined surface, and the printer driving rod presses the rotary driving force receiving head to move axially along the photosensitive drum (gear); when the processing box falls in the working position in the printer , The printer driver lever is automatically aligned with the rotary drive force receiving head of the drum drive assembly; when the printer is turned on, At the beginning of the printer driving rod, it is possible to first idle an angle, and then engage with the two claws on the rotating driving force receiving head, thereby driving the photosensitive drum in the process box to rotate, so that the processing box can be used for powder development. Thereby implementing the printing process of the printer.
  • the axial adjustment assembly is held on the central axis of the gear by the central shaft member, it is ensured that the axial driving assembly and the final driving force received by the entire driving assembly are received when the rotational driving force receiving head is driven by the driving force given by the machine. It always falls on the center axis of the gear and the photosensitive drum, so that the jump of the relative axis of the gear can be greatly reduced.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
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  • Electrophotography Configuration And Component (AREA)

Description

[根据细则37.2由ISA制定的发明名称]　驱动组件，以及具有该驱动组件的感光鼓和处理盒 技术领域
本发明涉及驱动组件、采用这种驱动组件构建的感光鼓及处理盒。本发明基于申请日为2009年10月27日、申请号为200920238326.2的中国实用新型专利申请，该申请的内容作为与本发明密切相关的参考文献引入本文。
 背景技术
电子照相成像设备包括复印机、激光打印机以及类似设备。
电子照相成像设备内通常有一个处理盒，并且处理盒能够安装至电子照相成像设备的主组件上并从主组件上拆卸。例如，通过将一个带有感光鼓、以及作为处理装置的显影装置、充电装置和清洁装置中的至少一个整体地装配到盒体中而制备的处理盒。
现有处理盒包括以下种类：通过将感光鼓和由显影装置、充电装置及清洁装置组成的整体装配在盒中而制备的第一种处理盒；通过将感光鼓以及充电装置整体装配在盒中而制备的第二种处理盒；以及通过整体装配感光鼓以及由充电装置和清洁装置组成的两个处理单元而制备的第三种处理盒。
使用者自己能够将上述处理盒以可拆卸方式安装至电子照相成像设备主组件。因此，使用者可以进行设备的维护，而无需依赖专业的服务人员，进而，改进了用户对电子照相成像设备维护的可操作性。在上述传统的处理盒中，用于从设备主组件接收旋转驱动力以便驱动感光鼓驱动机构如下。
在主组件侧，设置有可旋转件和一非圆形扭转孔，可旋转件用于传递电机的驱动力，扭转孔设置在可旋转件的中心部，设有多个角部且具有可以与可旋转件一体转动的横截面。
在处理盒侧，设置一非圆形扭转突起，突起设置在感光鼓的其中一个轴向端部，并且具有设有多个角部的横截面。当处理盒被装至设备主组件时，可旋转件在突起和孔彼此接合的状态下旋转时，可旋转件的旋转驱动力被传递至感光鼓。结果，用于驱动感光鼓的旋转力从设备主组件传递至感光鼓。另一种已知的机构是通过啮合固定于感光鼓的齿轮而驱动感光鼓，进而驱动感光鼓构成的处理盒。然而，在美国专利 US5903803 中所描述的传统构造中，当通过沿着与可旋转件的轴线大致垂直的方向移动处理盒而将处理盒安装至主组件或者从主组件拆除时，需要使可旋转件沿着水平方向移动。即，需要通过主组件盖的打开和关闭操作而使可旋转件水平移动。通过所述主组件盖的打开操作，孔与突起分离。另一方面，通过主组件盖的关闭操作，孔朝着突起移动以便与突起接合。因此，在传统的处理盒中，需要在主组件上设置一种机构，其用于通过主组件盖的打开和关闭操作而沿着旋转轴线方向移动可旋转件。在美国专利US4829335 所描述的构造中，无需沿着其轴线方向移动设置于主组件的驱动齿轮，所述盒就能够通过沿着大致垂直于所述轴线的方向移动而安装至主组件以及从主组件上拆却。然而，在这种构造中，主组件和处理盒之间的驱动连接部是齿轮之间的啮合部，从而难以防止感光鼓的旋转不均匀性。
美国专利申请公开说明书US2008/0152388A1公开了另一种处理盒，其相对上述处理盒的改进点是，位于感光鼓的一个轴向端部的驱动组件是采用圆球式万向节驱动联结结构。这种驱动联结结构存在着易从驱动组件中脱出，特别是在运输过程当中，此现象更易出现，而使驱动组件的功能丧失或工作不稳定。
技术问题
本发明的主要目的是提供结构改进、性能可靠的驱动组件；
本发明的另一目的是提供一种结构改进、性能可靠的驱动组件构建的感光鼓；
本发明的再一目的是提供一种用结构改进、性能可靠的驱动组件构建的处理盒。
 技术解决方案
为了实现上述目的，本发明提供的驱动组件包括一个具有一固定端的齿轮，轴向调整组件，其具有伸出所述齿轮另一端之外的旋转驱动力接收头，所述轴向调整组件可沿所述齿轮轴向以及垂直于该轴向的第一方向相对于所述齿轮往复平动地设置于该齿轮当中，所述轴向调整组件与所述齿轮之间设置有弹性支撑部件和轴向限位部件。所述轴向调整组件包括第一运动子组件、槽部件和中心轴部件；所述槽部件具有在空间上相互垂直的上滑槽和下滑槽，所述第一运动子组件在第一方向上与所述上滑槽形成相对滑动配合；所述中心轴部件与所述齿轮共轴线，其在第二方向上与所述下滑槽形成相对滑动配合；所述第一方向和第二方向均垂直于所述齿轮轴向。
进一步的方案是所述第一运动子组件包括所述旋转驱动力接收头和一调整滑块，所述旋转驱动力接收头可绕其轴线在一定角度内旋转地连接于所述调整滑块，所述旋转驱动力接收头与所述调整滑块之间设有一转动限位销。
再进一步的方案是所述旋转驱动力接收头包括外端部、中间部和轴部，该轴部设有供所述转动限位销穿过的销孔；所述外端部的中心位置形成有内凹的球形面，该球形面的周沿形成有向轴向外伸的第一凸爪、第二凸爪以及由第一凸爪和第二凸爪分隔开的第一切面和第二切面；所述第一凸爪的表面具有第一咬合面、第一斜面和第二斜面，所述第二凸爪的表面具有第二咬合面、第三斜面和第四斜面，其中，第一斜面、第二斜面、第三斜面和第四斜面均形成在所述外端部的外周边缘。
更进一步的方案是所述第一凸爪与第二凸爪、所述第一切面与第二切面分别关于旋转驱动力接收头的轴线形成中心对称。
更进一步的方案是所述调整滑块由一基座和形成在基座上的凸台构成，该凸台内部具有轴向贯通的通孔，该通孔的直径大于所述旋转驱动力接收头轴部的直径，且小于所述旋转驱动力接收头中间部的直径；所述基座的第一侧面具有向外伸出的第一限位凸块，第二侧面具有向外伸出的第二限位凸块；在所述基座的底面上具有容纳所述转动限位销的凹槽，该凹槽环绕形成于所述通孔周围，该凹槽内具有相对设置的第一限位挡块和第二限位挡块。
更进一步的方案是所述中心轴部件由头部和杆部组成，所述头部呈鼓形的薄板状，所述杆部的横截面形状呈鼓形，该横截面积小于头部的面积；所述轴向限位部件为限位插销，所述杆部的底部设有沿径向贯穿杆部的销孔，该销孔与所述限位插销配合。
此外，所述齿轮的外圆周面上具有传动齿圈，齿轮内部设有垂直于轴向的隔板以及位于隔板上方的齿轮腔，该隔板的中心位置设有一定位座，该定位座上开有轴向贯通的通孔。所述通孔和所述杆部的横截面形状均为鼓形。所述弹性支撑部件为螺旋型压缩弹簧。
本发明提供的感光鼓，包括鼓主体及固定在所述鼓主体轴向一端的驱动组件。所述驱动组件包括具有一固定端的齿轮；轴向调整组件，其具有伸出所述齿轮另一端之外的旋转驱动力接收头；所述轴向调整组件可沿所述齿轮轴向以及垂直于该轴向的第一方向相对于所述齿轮往复平动地设置于该齿轮当中，所述轴向调整组件与所述齿轮之间设置有弹性支撑部件和轴向限位部件；所述轴向调整组件包括第一运动子组件、槽部件和中心轴部件；所述槽部件具有在空间上相互垂直的上滑槽和下滑槽，所述第一运动子组件在第一方向上与所述上滑槽形成相对滑动配合；所述中心轴部件与所述齿轮共轴线，其在第二方向上与所述下滑槽形成相对滑动配合；所述第一方向和第二方向均垂直于所述齿轮轴向。
进一步的方案是所述第一运动子组件包括所述旋转驱动力接收头和一调整滑块，所述旋转驱动力接收头可绕其轴线在一定角度内旋转地连接于所述调整滑块，所述旋转驱动力接收头与所述调整滑块之间设有一转动限位销。
再进一步的方案是所述旋转驱动力接收头包括外端部、中间部和轴部，该轴部设有供所述转动限位销穿过的销孔；所述外端部的中心位置形成有内凹的球形面，该球形面的周沿形成有向轴向外伸的第一凸爪、第二凸爪以及由第一凸爪和第二凸爪分隔开的第一切面和第二切面；所述第一凸爪的表面具有第一咬合面、第一斜面和第二斜面，所述第二凸爪的表面具有第二咬合面、第三斜面和第四斜面，其中，第一斜面、第二斜面、第三斜面和第四斜面均形成在所述外端部的外周边缘；所述第一凸爪与第二凸爪、所述第一切面与第二切面分别关于旋转驱动力接收头的轴线形成中心对称；所述调整滑块由一基座和形成在基座上的凸台构成，该凸台内部具有轴向贯通的通孔，该通孔的直径大于所述旋转驱动力接收头轴部的直径，且小于所述旋转驱动力接收头中间部的直径；所述基座的第一侧面具有向外伸出的第一限位凸块，第二侧面具有向外伸出的第二限位凸块；在所述基座的底面上具有容纳所述转动限位销的凹槽，该凹槽环绕形成于所述通孔周围，该凹槽内具有相对设置的第一限位挡块和第二限位挡块。
此外，所述中心轴部件由头部和杆部组成，所述头部呈鼓形的薄板状，所述杆部的横截面形状呈鼓形，该横截面积小于头部的面积；所述轴向限位部件为限位插销，所述杆部的底部设有沿径向贯穿杆部的销孔，该销孔与所述限位插销配合；所述齿轮的外圆周面上具有传动齿圈，齿轮内部设有垂直于轴向的隔板以及位于隔板上方的齿轮腔，该隔板的中心位置设有一定位座，该定位座上开有轴向贯通的通孔；所述通孔和所述杆部的横截面形状均为鼓形；所述弹性支撑部件为螺旋型压缩弹簧。
本发明提供的处理盒包括盒体；可旋转地安装在所述盒体内的感光鼓；所述感光鼓包括鼓主体及固定在所述鼓主体轴向一端的驱动组件；所述驱动组件包括具有一固定端的齿轮；轴向调整组件，其具有伸出所述齿轮另一端之外的旋转驱动力接收头；所述轴向调整组件可沿所述齿轮轴向以及垂直于该轴向的第一方向相对于所述齿轮往复平动地设置于该齿轮当中，所述轴向调整组件与所述齿轮之间设置有弹性支撑部件和轴向限位部件；所述轴向调整组件包括第一运动子组件、槽部件和中心轴部件；所述槽部件具有在空间上相互垂直的上滑槽和下滑槽，所述第一运动子组件在第一方向上与所述上滑槽形成相对滑动配合；所述中心轴部件与所述齿轮共轴线，其在第二方向上与所述下滑槽形成相对滑动配合；所述第一方向和第二方向均垂直于所述齿轮轴向。
进一步的方案是所述第一运动子组件包括所述旋转驱动力接收头和一调整滑块，所述旋转驱动力接收头可绕其轴线在一定角度内旋转地连接于所述调整滑块，所述旋转驱动力接收头与所述调整滑块之间设有一转动限位销。
再进一步的方案是所述旋转驱动力接收头包括外端部、中间部和轴部，该轴部设有供所述转动限位销穿过的销孔；所述外端部的中心位置形成有内凹的球形面，该球形面的周沿形成有向轴向外伸的第一凸爪、第二凸爪以及由第一凸爪和第二凸爪分隔开的第一切面和第二切面；所述第一凸爪的表面具有第一咬合面、第一斜面和第二斜面，所述第二凸爪的表面具有第二咬合面、第三斜面和第四斜面，其中，第一斜面、第二斜面、第三斜面和第四斜面均形成在所述外端部的外周边缘；所述第一凸爪与第二凸爪、所述第一切面与第二切面分别关于旋转驱动力接收头的轴线形成中心对称；所述调整滑块由一基座和形成在基座上的凸台构成，该凸台内部具有轴向贯通的通孔，该通孔的直径大于所述旋转驱动力接收头轴部的直径，且小于所述旋转驱动力接收头中间部的直径；所述基座的第一侧面具有向外伸出的第一限位凸块，第二侧面具有向外伸出的第二限位凸块；在所述基座的底面上具有容纳所述转动限位销的凹槽，该凹槽环绕形成于所述通孔周围，该凹槽内具有相对设置的第一限位挡块和第二限位挡块。
此外，所述中心轴部件由头部和杆部组成，所述头部呈鼓形的薄板状，所述杆部的横截面形状呈鼓形，该横截面积小于头部的面积；所述轴向限位部件为限位插销，所述杆部的底部设有沿径向贯穿杆部的销孔，该销孔与所述限位插销配合；所述齿轮的外圆周面上具有传动齿圈，齿轮内部设有垂直于轴向的隔板以及位于隔板上方的齿轮腔，该隔板的中心位置设有一定位座，该定位座上开有轴向贯通的通孔；所述通孔和所述杆部的横截面形状均为鼓形；所述弹性支撑部件为螺旋型压缩弹簧。
 附图说明
图1是感光鼓实施例的结构示意图；
图2是图1中的驱动组件实施例的结构示意图；
图3是图2所示驱动组件的局部剖视图；
图4是图2所示驱动组件的结构分解图；
图5是图4中旋转驱动力接收头的结构示意图；
图6是图5所示旋转驱动力接收头的背面视图；
图7是图4中调整滑块的结构示意图；
图8是图7所示调整滑块的底面视图；
图9是图4中槽部件的结构示意图；
图10是图4中的中心轴部件的结构示意图；
图11是图10所示中心轴部件的仰视图；
图12是图4中齿轮的结构示意图；
图13是图12所示齿轮另一视角的结构示意图；
图14是图2所示驱动组件中第一运动子组件的结构示意图；
图15是图14所示第一运动子组件的底面视图；
图16是图2所示驱动组件中轴向调整组件的结构示意图；
图17a~图17d是含有图1所示感光鼓的处理盒在落机过程中，其驱动组件与打印机驱动头的配合过程示意图；
图18a~图18d是含有图1所示感光鼓的处理盒在脱机过程中，其驱动组件与打印机驱动头的配合过程示意图。
 本发明的最佳实施方式
基于本发明的处理盒基本与本文背景技术中描述的各种现有处理盒相同，感光鼓也与现有文献中的感光鼓基本相同，不同处仅在于构建于感光鼓一个轴向端部的驱动组件，因此，以下仅对驱动组件的实施例作详细说明，处理盒及感光鼓的实施例不再赘述。
图1表示了本发明构建了驱动组件1的感光鼓10实施例，驱动组件1固定在感光鼓10的鼓主体20的一端，鼓主体20的周面上具有感光层。驱动组件1用于接收来自于打印机驱动机构的旋转驱动力，并将该旋转驱动力传递给鼓主体20，使鼓主体20在该旋转驱动力作用下绕其轴线旋转。
图2~图4表示出驱动组件1的基本构成，其结构主要包括齿轮2、旋转驱动力接收头3、调整滑块4、槽部件5、转动限位销6、中心轴部件9、限位插销7和螺旋型压缩弹簧8。齿轮2固定于鼓主体20的一端，该齿轮2的轴线与鼓主体20的轴线重合，并与鼓主体20同步绕它们共同的轴线旋转。旋转驱动力接收头3通过转动限位销6连接于调整滑块4，该旋转驱动力接收头3可在一定角度范围内绕其轴线相对于调整滑块4往复转动；螺旋型压缩弹簧8套在中心轴部件9上；中心轴部件9通过限位插销7装配在齿轮2内。
参见图16，旋转驱动力接收头3、调整滑块4、转动限位销6、槽部件5和中心轴部件9构成一个轴向调整组件11。参见图17和图18，通过螺旋型压缩弹簧8受压、外力失去后螺旋型压缩弹簧8的恢复力以及限位插销7的轴向限位，轴向调整组件11可沿齿轮2的轴向Z、相对于齿轮2作有限制的轴向往复平移运动。此外，参见图14和图15，由旋转驱动力接收头3、调整滑块4和转动限位销6组成的第一运动子组件12可以沿垂直于齿轮2轴向Z的第一方向X、在上滑槽51内相对于槽部件5作有限制的第一直线往复平移运动；而由第一运动子组件12加上槽部件5组成的第二运动子组件14则可以沿垂直于齿轮2轴向Z的第二方向Y、相对于中心轴部件9作有限制的第二直线往复平移运动，第一方向X与第二方向Y相互垂直。
参见图5和图6，旋转驱动力接收头3大致呈一类似火炬的形状，由图5示的自上而下依次变细的外端部30、中间部36和轴部37构成，中间部36和轴部37均为圆柱形，轴部37设有供转动限位销6穿过的销孔38。外端部30的中心位置形成有内凹的球形面35，球形面35的周沿形成有沿轴向外伸的第一凸爪31和第二凸爪32，第一凸爪31与第二凸爪32关于旋转驱动力接收头3的轴线39形成中心对称。此外，球形面35的周围还形成由第一凸爪31和第二凸爪32分隔开且同样关于轴线39形成中心对称的第一切面33和第二切面34。第一凸爪31的表面具有第一咬合面313、第一斜面311和第二斜面312，第二凸爪32的表面具有第二咬合面323、第三斜面321和第四斜面322，其中，第一咬合面313与第二咬合面323、第一斜面311与第三斜面321、第二斜面312与第四斜面322分别关于轴线39形成中心对称，第一斜面311、第二斜面312、第三斜面321和第四斜面322均形成在外端部30的外周边缘。
参见图7和图8，调整滑块4由一大致呈鼓形的基座46和形成在基座46上的圆柱形凸台45构成，凸台45内部具有轴向贯通的圆柱形通孔47，该通孔47的直径大于旋转驱动力接收头3的轴部37的直径，且小于旋转驱动力接收头3的中间部36的直径，因此仅可供轴部37穿过。基座46的第一侧面48具有向外伸出的第一限位凸块41，第二侧面49具有向外伸出的第二限位凸块42，上述两个限位凸块的作用是控制调整滑块4在槽部件5滑槽平面内移动的距离。在基座46的底面上具有容纳转动限位销6的凹槽410，该凹槽410环绕形成于通孔47周围，槽内设有两个相对的第一限位挡块43和第二限位挡块44，使得装在销孔38中的转动限位销6能够且仅能够在一定角度范围内绕调整滑块4的轴线411转动。
参见图9，槽部件5为开有槽的圆柱体，其顶部具有沿径向贯通的上滑槽51，底部具有径向贯通的下滑槽52，该上滑槽51和下滑槽52的横截面大致为“凸”字形，它们在空间上相互垂直。调整滑块4的基座46可在该上滑槽51内相对于槽部件5沿径向往复滑动，中心轴部件9的头部可在该下滑槽52内相对于槽部件5沿径向往复滑动。
参见图10和图11，中心轴部件9由头部91和杆部92组成，大致呈T字形。其中，头部91呈鼓形的薄板状，杆部92的横截面形状同样呈鼓形，但杆部92的横截面积小于头部91的面积。杆部92的底部设有沿径向贯穿杆部92的销孔93，该销孔93与限位插销7配合。杆部92的内部具有空腔94。
参见图12和图13，齿轮2的外圆周面上具有传动齿圈24，齿轮2内部设有垂直于轴向的隔板25以及位于隔板25上方的齿轮腔21，该隔板25的中心位置设有向上凸起的定位座23，该定位座23开有一鼓形孔22，该鼓形孔22的形状大小与中心轴部件9的杆部92的横截面形状大小基本相等，杆部92仅能在该鼓形孔22内实现轴向的移动。齿轮腔21的周向侧壁26为第一运动子组件12沿第一方向X所作的第一直线往复平移运动以及第二运动子组件14沿第二方向Y所作的第二直线往复平移运动提供限位。
参见图14和图15，运动子组件12由旋转驱动力接收头3、调整滑块4和转动限位销6组成，旋转驱动力接收头3的轴部37穿过调整滑块4的通孔47，转动限位销6穿过轴部37的销孔38并置于调整滑块4底部的凹槽410内。
参见图16，轴向调整组件11由旋转驱动力接收头3、调整滑块4、转动限位销6、槽部件5和中心轴部件9组成。通过螺旋型压缩弹簧8的压缩，该轴向调整组件11可沿感光鼓轴向Z、相对于齿轮2作轴向往复平移运动。
图17a~图17d，表示出装有驱动组件1的处理盒（仅示出感光鼓的端部）落入打印机内的工作过程示意图，处理盒沿垂直于感光鼓轴线的方向Xa落入打印机内；图18a~图18d表示出装有驱动组件1的处理盒从打印机内脱出的工作过程示意图，处理盒沿垂直鼓轴线的方向Xb从打印机内脱出。驱动组件1内的轴向调整组件11整体沿方向Za向内移动，轴向调整组件11整体沿方向Zb向外移动；参见图14，θa表示旋转驱动力接收头3顺时针转动方向，θb表示旋转驱动力接收头3逆时针转动方向。
其工作过程如下：
1、沿方向Xa将处理盒推入打印机；
2、参见图17a~图17d，当处理盒上驱动组件1沿方向Xa放入打印机并接触到打印机驱动杆13时，有两种情况需分解说明：
1）若初始接触位置是第一凸爪31时，打印机驱动杆13会碰及第一凸爪31的两个斜面311、312，这两个面必然有一个面会受力较弱，当第二斜面312受力较弱时，打印机驱动杆13擦着第二斜面312推动旋转驱动力接收头3沿方向θa转动一个角度后，打印机驱动杆13就会自动切入到与第二斜面312邻接的第二切面34上，并致使驱动组件1内的轴向调整组件11整体沿Za方向移动；当第一斜面311受力较弱时，打印机驱动杆13就会擦着第一斜面311推动旋转驱动力接收头3沿θb方向转动一个角度后，打印机驱动杆13也会自动切入到与第一斜面311邻接的第一切面33上，并致使驱动组件1内的轴向调整组件11整体沿Za方向移动。由于第二凸爪32与第一凸爪31中心对称，因此当初始接触位置是第二凸爪32时，其动作过程与上述过程相类似；
2、若初始接触位置是第一切面33或第二切面34时，打印机驱动杆13就会直接自动切入第一切面33或第二切面34上，并致使驱动组件内的轴向调整组件11整体沿Za方向移动。
3、随着沿方向Xa的行进，驱动组件1内的轴向调整组件11整体沿Za方向移动位移也逐渐增大；当打印机驱动杆13触及球形面35边缘后，驱动组件1内的轴向调整组件11整体将沿方向Zb移动，直至打印机驱动杆13的顶面与球形面35基本吻合；
4、打印机启动，打印机驱动杆13就会自动耦合旋转驱动力接收头3，旋转驱动力接收头3接受来自打印机的旋转驱动力而驱动感光鼓10的鼓主体20转动；
5、当旋转驱动力接收头3接受打印机的驱动力时，来自打印机的驱动力可能不是一个恒定值，于是通过驱动组件1内的第一运动子组件12和第二运动子组件14在小范围内交错直线移动来缓冲打印机驱动力的变化值，从而使感光鼓转动平稳，不产生跳动和波动，处理盒工作正常，打印品质优良；
6、参见图18a~图18d，当打印机停止运行后，将处理盒从打印机中取出时，处理盒沿方向Xb移动初始，打印机驱动杆13开始脱离旋转驱动力接收头3；
7、当打印机驱动杆13行至触及球形面35边缘的过程中，驱动组件1内的轴向调整组件11整体沿方向Za移动；
8、随着轴向调整组件11整体沿方向Za移动位移量增加，若当打印机驱动杆遇到第一凸爪31或第二凸爪32时，会拔动旋转驱动力接收头3沿θa或θb方向转动一个角度，致使打印机驱动杆13切入在第一切面33或第二切面34上；
9、当打印机驱动杆13切入在第一切面33或第二切面34上，轴向调整组件11整体开始沿方向Zb移动，直至位移量为零时，处理盒就可从打印机中取出。
以上仅是本发明的优选实施方式，应当指出，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，而不脱离本发明权利要求的保护范围。例如，限位插销可以采用本领域技术人员容易想到的其它轴向限位结构来实现，轴向限位结构可以是与中心轴部件分离的独立构件，也可以是形成在中心轴部件上的一个部分。此外，弹性支撑部件可以用螺旋型压缩弹簧以外的弹性部件来替代，例如可被压缩的弹性塑料件等；中心轴部件的杆部横截面形状以及齿轮隔板上的通孔的形状也不限于鼓形，还可以是长方形、平形四边形等具有两条平形边的任何形状，只要能够使轴向调整组件仅能相对于齿轮沿轴向平动，而不能相对于齿轮沿径向平动和绕轴线转动即可。
 工业实用性
由于本发明驱动组件的轴向调整组件可沿齿轮轴向相对于齿轮往复平动地设置于该齿轮当中，轴向调整组件与齿轮之间设置有弹性支撑部件和轴向限位部件，当具有上述驱动组件的处理盒向打印机内安装时，其轴向调整组件上的旋转驱动力接收头在弹性支撑部件的作用力下使其始终保持与齿轮轴向一致，而且由于设置了轴向限位部件，轴向调整组件不容易从齿轮中脱出，保证了工作的可靠性和稳定性。当与打印机驱动杆接触时, 旋转驱动力接收头利用各自的斜面与打印机驱动杆端部的圆面相擦, 打印机驱动杆压迫旋转驱动力接收头沿感光鼓（齿轮）轴向运动;当处理盒落在打印机内的工作位置时, 打印机驱动杆就自动对准了感光鼓驱动组件的旋转驱动力接收头;当打印机启动时, 打印机驱动杆开始有可能先空转一个角度,然后与旋转驱动力接收头上的两凸爪咬合,从而带动处理盒中的感光鼓转动,使处理盒供粉显影, 从而实现打印机的打印过程。由于轴向调整组件利用中心轴部件保持在齿轮的中心轴线上，由此可保证旋转驱动力接收头在受到机器给予的驱动力被驱动时，轴向调整组件以及整个驱动组件接受的最终驱动力始终落在齿轮和感光鼓的中心轴线上，从而可大大减轻齿轮相对轴线的跳动。

Claims (15)

  1. 驱动组件，包括
    具有一固定端的齿轮；
    轴向调整组件，其具有伸出所述齿轮另一端之外的旋转驱动力接收头；
    其特征在于：
    所述轴向调整组件可沿所述齿轮轴向以及垂直于该轴向的第一方向相对于所述齿轮往复平动地设置于该齿轮当中，所述轴向调整组件与所述齿轮之间设置有弹性支撑部件和轴向限位部件；
    所述轴向调整组件包括第一运动子组件、槽部件和中心轴部件；所述槽部件具有在空间上相互垂直的上滑槽和下滑槽，所述第一运动子组件在第一方向上与所述上滑槽形成相对滑动配合；所述中心轴部件与所述齿轮共轴线，其在第二方向上与所述下滑槽形成相对滑动配合；所述第一方向和第二方向均垂直于所述齿轮轴向。
  2. 根据权利要求1所述的驱动组件，其特征在于：
    所述第一运动子组件包括所述旋转驱动力接收头和一调整滑块，所述旋转驱动力接收头可绕其轴线在一定角度内旋转地连接于所述调整滑块，所述旋转驱动力接收头与所述调整滑块之间设有一转动限位销。
  3. 根据权利要求2所述的驱动组件，其特征在于：
    所述旋转驱动力接收头包括外端部、中间部和轴部，该轴部设有供所述转动限位销穿过的销孔；所述外端部的中心位置形成有内凹的球形面，该球形面的周沿形成有向轴向外伸的第一凸爪、第二凸爪以及由第一凸爪和第二凸爪分隔开的第一切面和第二切面；所述第一凸爪的表面具有第一咬合面、第一斜面和第二斜面，所述第二凸爪的表面具有第二咬合面、第三斜面和第四斜面，其中，第一斜面、第二斜面、第三斜面和第四斜面均形成在所述外端部的外周边缘。
  4. 根据权利要求3所述的驱动组件，其特征在于：
    所述第一凸爪与第二凸爪、所述第一切面与第二切面分别关于旋转驱动力接收头的轴线形成中心对称。
  5. 根据权利要求4所述的驱动组件，其特征在于：
    所述调整滑块由一基座和形成在基座上的凸台构成，该凸台内部具有轴向贯通的通孔，该通孔的直径大于所述旋转驱动力接收头轴部的直径，且小于所述旋转驱动力接收头中间部的直径；所述基座的第一侧面具有向外伸出的第一限位凸块，第二侧面具有向外伸出的第二限位凸块；在所述基座的底面上具有容纳所述转动限位销的凹槽，该凹槽环绕形成于所述通孔周围，该凹槽内具有相对设置的第一限位挡块和第二限位挡块。
  6. 根据权利要求2至5任一项所述的驱动组件，其特征在于：
    所述中心轴部件由头部和杆部组成，所述头部呈鼓形的薄板状，所述杆部的横截面形状呈鼓形，该横截面积小于头部的面积；所述轴向限位部件为限位插销，所述杆部的底部设有沿径向贯穿杆部的销孔，该销孔与所述限位插销配合。
  7. 根据权利要求6所述的驱动组件，其特征在于：
    所述齿轮的外圆周面上具有传动齿圈，齿轮内部设有垂直于轴向的隔板以及位于隔板上方的齿轮腔，该隔板的中心位置设有一定位座，该定位座上开有轴向贯通的通孔；
    所述通孔和所述杆部的横截面形状均为鼓形；
    所述弹性支撑部件为螺旋型压缩弹簧。
  8. 感光鼓，包括
    鼓主体及固定在所述鼓主体轴向一端的驱动组件；
    所述驱动组件包括
    具有一固定端的齿轮；
    轴向调整组件，其具有伸出所述齿轮另一端之外的旋转驱动力接收头；
    其特征在于：
    所述轴向调整组件可沿所述齿轮轴向以及垂直于该轴向的第一方向相对于所述齿轮往复平动地设置于该齿轮当中，所述轴向调整组件与所述齿轮之间设置有弹性支撑部件和轴向限位部件；
    所述轴向调整组件包括第一运动子组件、槽部件和中心轴部件；所述槽部件具有在空间上相互垂直的上滑槽和下滑槽，所述第一运动子组件在第一方向上与所述上滑槽形成相对滑动配合；所述中心轴部件与所述齿轮共轴线，其在第二方向上与所述下滑槽形成相对滑动配合；所述第一方向和第二方向均垂直于所述齿轮轴向。
  9. 根据权利要求8所述的感光鼓，其特征在于：
    所述第一运动子组件包括所述旋转驱动力接收头和一调整滑块，所述旋转驱动力接收头可绕其轴线在一定角度内旋转地连接于所述调整滑块，所述旋转驱动力接收头与所述调整滑块之间设有一转动限位销。
  10. 根据权利要求9所述的感光鼓，其特征在于：
    所述旋转驱动力接收头包括外端部、中间部和轴部，该轴部设有供所述转动限位销穿过的销孔；所述外端部的中心位置形成有内凹的球形面，该球形面的周沿形成有向轴向外伸的第一凸爪、第二凸爪以及由第一凸爪和第二凸爪分隔开的第一切面和第二切面；所述第一凸爪的表面具有第一咬合面、第一斜面和第二斜面，所述第二凸爪的表面具有第二咬合面、第三斜面和第四斜面，其中，第一斜面、第二斜面、第三斜面和第四斜面均形成在所述外端部的外周边缘；
    所述第一凸爪与第二凸爪、所述第一切面与第二切面分别关于旋转驱动力接收头的轴线形成中心对称；
    所述调整滑块由一基座和形成在基座上的凸台构成，该凸台内部具有轴向贯通的通孔，该通孔的直径大于所述旋转驱动力接收头轴部的直径，且小于所述旋转驱动力接收头中间部的直径；所述基座的第一侧面具有向外伸出的第一限位凸块，第二侧面具有向外伸出的第二限位凸块；在所述基座的底面上具有容纳所述转动限位销的凹槽，该凹槽环绕形成于所述通孔周围，该凹槽内具有相对设置的第一限位挡块和第二限位挡块。
  11. 根据权利要求8至10任一项所述的感光鼓，其特征在于：
    所述中心轴部件由头部和杆部组成，所述头部呈鼓形的薄板状，所述杆部的横截面形状呈鼓形，该横截面积小于头部的面积；所述轴向限位部件为限位插销，所述杆部的底部设有沿径向贯穿杆部的销孔，该销孔与所述限位插销配合；
    所述齿轮的外圆周面上具有传动齿圈，齿轮内部设有垂直于轴向的隔板以及位于隔板上方的齿轮腔，该隔板的中心位置设有一定位座，该定位座上开有轴向贯通的通孔；
    所述通孔和所述杆部的横截面形状均为鼓形；
    所述弹性支撑部件为螺旋型压缩弹簧。
  12. 处理盒，包括
    盒体；
    可旋转地安装在所述盒体内的感光鼓；
    所述感光鼓包括
    鼓主体及固定在所述鼓主体轴向一端的驱动组件；
    所述驱动组件包括
    具有一固定端的齿轮；
    轴向调整组件，其具有伸出所述齿轮另一端之外的旋转驱动力接收头；
    其特征在于：
    所述轴向调整组件可沿所述齿轮轴向以及垂直于该轴向的第一方向相对于所述齿轮往复平动地设置于该齿轮当中，所述轴向调整组件与所述齿轮之间设置有弹性支撑部件和轴向限位部件；
    所述轴向调整组件包括第一运动子组件、槽部件和中心轴部件；所述槽部件具有在空间上相互垂直的上滑槽和下滑槽，所述第一运动子组件在第一方向上与所述上滑槽形成相对滑动配合；所述中心轴部件与所述齿轮共轴线，其在第二方向上与所述下滑槽形成相对滑动配合；所述第一方向和第二方向均垂直于所述齿轮轴向。
  13. 根据权利要求12所述的处理盒，其特征在于：
    所述第一运动子组件包括所述旋转驱动力接收头和一调整滑块，所述旋转驱动力接收头可绕其轴线在一定角度内旋转地连接于所述调整滑块，所述旋转驱动力接收头与所述调整滑块之间设有一转动限位销。
  14. 根据权利要求13所述的处理盒，其特征在于：
    所述旋转驱动力接收头包括外端部、中间部和轴部，该轴部设有供所述转动限位销穿过的销孔；所述外端部的中心位置形成有内凹的球形面，该球形面的周沿形成有向轴向外伸的第一凸爪、第二凸爪以及由第一凸爪和第二凸爪分隔开的第一切面和第二切面；所述第一凸爪的表面具有第一咬合面、第一斜面和第二斜面，所述第二凸爪的表面具有第二咬合面、第三斜面和第四斜面，其中，第一斜面、第二斜面、第三斜面和第四斜面均形成在所述外端部的外周边缘；
    所述第一凸爪与第二凸爪、所述第一切面与第二切面分别关于旋转驱动力接收头的轴线形成中心对称；
    所述调整滑块由一基座和形成在基座上的凸台构成，该凸台内部具有轴向贯通的通孔，该通孔的直径大于所述旋转驱动力接收头轴部的直径，且小于所述旋转驱动力接收头中间部的直径；所述基座的第一侧面具有向外伸出的第一限位凸块，第二侧面具有向外伸出的第二限位凸块；在所述基座的底面上具有容纳所述转动限位销的凹槽，该凹槽环绕形成于所述通孔周围，该凹槽内具有相对设置的第一限位挡块和第二限位挡块。
  15. 根据权利要求12至14任一项所述的处理盒，其特征在于：
    所述中心轴部件由头部和杆部组成，所述头部呈鼓形的薄板状，所述杆部的横截面形状呈鼓形，该横截面积小于头部的面积；所述轴向限位部件为限位插销，所述杆部的底部设有沿径向贯穿杆部的销孔，该销孔与所述限位插销配合；
    所述齿轮的外圆周面上具有传动齿圈，齿轮内部设有垂直于轴向的隔板以及位于隔板上方的齿轮腔，该隔板的中心位置设有一定位座，该定位座上开有轴向贯通的通孔；
    所述通孔和所述杆部的横截面形状均为鼓形；
    所述弹性支撑部件为螺旋型压缩弹簧。
PCT/CN2010/073622 2009-10-27 2010-06-07 驱动组件，以及具有该驱动组件的感光鼓和处理盒 WO2011050613A1 (zh)

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US10416604B1 (en) 2018-04-18 2019-09-17 Jiangxi Yibo E-Tech Co.Ltd. Process cartridge

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US20110255900A1 (en) 2011-10-20
CN201532527U (zh) 2010-07-21
EP2495619A1 (en) 2012-09-05
US8615184B2 (en) 2013-12-24

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