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WO2017206711A1 - Ensemble de transmission de force rotative, tambour photosensible et cartouche de traitement - Google Patents

Ensemble de transmission de force rotative, tambour photosensible et cartouche de traitement Download PDF

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Publication number
WO2017206711A1
WO2017206711A1 PCT/CN2017/084632 CN2017084632W WO2017206711A1 WO 2017206711 A1 WO2017206711 A1 WO 2017206711A1 CN 2017084632 W CN2017084632 W CN 2017084632W WO 2017206711 A1 WO2017206711 A1 WO 2017206711A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotational force
force receiving
force transmitting
tooth
magnet
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/084632
Other languages
English (en)
Chinese (zh)
Inventor
李争光
杨晓锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Print Rite Unicorn Image Products Co Ltd
Original Assignee
Print Rite Unicorn Image Products Co Ltd
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 Print Rite Unicorn Image Products Co Ltd filed Critical Print Rite Unicorn Image Products Co Ltd
Publication of WO2017206711A1 publication Critical patent/WO2017206711A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • 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

Definitions

  • the present invention relates to a process cartridge detachably mountable in an electrophotographic image forming apparatus, and a rotary force transmitting member thereof and a photosensitive drum.
  • the present invention is based on a patent application filed on May 30, 2016, the disclosure of which is incorporated herein by reference.
  • An electrophotographic image forming apparatus is an apparatus for forming an image on a printing medium such as paper by an electrophotographic principle, such as a copying machine, a printer, a facsimile machine, an all-in-one machine, etc., and the apparatus generally includes a main body and is detachably mounted in the main body. Processing box.
  • the process cartridge has a casing and a photosensitive drum rotatably supported between the end walls of the casing, the photosensitive drum comprising a drum and a rotational force transmitting assembly mounted at an axial end of the drum.
  • the patent document with the publication number CN201945803U discloses a rotary driving force receiving head and a driving assembly, that is, a rotational force receiving head and a rotational force transmitting assembly.
  • the rotational force transmitting member 03 is composed of an axial stopper 031, a drum gear 032, an axial return spring 033, and a rotational force receiving head 08.
  • the rotational force receiving head 08 is composed of a rotational force transmitting head 04, two tension springs 05, two pin shafts 06, and two rotational force receiving teeth 07.
  • a coupling surface 071 for engaging with a rotational force output arm of the main drive shaft is formed on the coupling end of the rotational force receiving tooth 07, and a shaft hole 072 is formed on the middle portion to cooperate with the pin shaft 06, and the pull end is formed on the reset end.
  • the hooking hole 073 of the hook of the spring 05 has a coupling end and a reset end respectively located on opposite sides of the shaft hole 072.
  • the rotation force transmission head 04 is composed of a guide rod 041 and a bracket 042.
  • the bracket 042 is formed with a mounting groove 0422 that cooperates with the middle portion of the rotation force receiving tooth 07 and a suspension hole with the other hook of the tension spring 05.
  • the mounting groove 0422 A shaft hole 0421 that cooperates with the pin 06 is formed on both sides.
  • the rotational force receiving tooth 07 can be rotatably hinged around the pin 06 to the rotational force transmitting head 04, that is, at the coupling position and the host coupled to the main drive shaft
  • the drive shaft reciprocates from the disengaged position of the coupling.
  • One hook of the tension spring 05 is hung to the suspension hole 073, and the other hook is hung to the suspension hole provided on the bracket 042.
  • the rotational force transmitting component 03 can facilitate the disengagement coupling of the rotational force receiving head 08 and the driving shaft 02, but in the assembly process, the two tension springs 05 are not easily mounted to the rotational force transmitting head 04, and the rotational force transmitting head 04
  • the structure is complicated, resulting in complicated processing technology and high assembly cost.
  • the main object of the present invention is to provide a rotational force transmitting assembly that is simple in structure and easy to assemble;
  • Another object of the present invention is to provide a rotary force transmitting assembly which is simple in structure, easy to assemble, and can improve the smoothness of the process of dropping the process cartridge;
  • the present invention provides a rotational force transmitting assembly including a drum gear, a rotational force transmitting head, an axial return member, a tooth resetting member, and a rotational force receiving tooth hinged to the rotational force transmitting head by a hinge shaft.
  • the rotational force receiving tooth reciprocally rotates between the coupling position and the disengagement position around the hinge shaft.
  • the tooth resetting member is a torsion spring, and the coil of the torsion spring is sleeved on the hinge shaft, a twisting arm of the torsion spring abuts against the rotational force transmitting head, and the other twisting arm receives the tooth against the rotating force.
  • the rotation force transmitting head is provided with a limiting portion for restricting the rotational force receiving tooth from the coupling position and away from the disengagement position.
  • the elastic restoring force of the torsion spring forces the rotational force receiving teeth against the limit portion.
  • the present invention provides a specific embodiment in which the rotational force transmitting head includes a guide rod and a rotational force receiving portion provided at an axial end of the guide rod.
  • the end of the guide rod adjacent to the rotational force receiving portion is a force receiving portion for receiving a force forcing the rotational force transmitting head to rotate relative to the central axis of the drum gear about a predetermined angular range.
  • a more specific solution is to fix the first magnet or the second magnet and the third magnet on the force receiving section, and the magnetic pole connecting line of the magnet is arranged radially along the guiding rod.
  • the second magnet is collinear with the magnetic pole connection of the third magnet.
  • the force section has a simple structure, is easy to process, and has low cost.
  • the cross section of the force receiving section is a diamond face or a first non-circular face
  • the first non-circular face is formed by a first circular face and a radial protrusion from the edge of the first circular face.
  • the first protrusion surface and the second protrusion surface are arranged, the first protrusion surface and the second protrusion surface are symmetrically arranged with respect to the center of the first circular surface center; in the protrusion direction, in the direction perpendicular to the radial direction, the first protrusion surface
  • the size of the second protrusion surface gradually decreases in the direction perpendicular to the radial direction in the convex direction.
  • the photosensitive drum provided by the present invention comprises a drum and a rotational force transmitting assembly provided at an axial end of the drum.
  • the rotational force transmitting component is the rotational force transmitting component described in any of the above technical solutions.
  • the process cartridge of the present invention comprises a casing and a photosensitive drum rotatably supported between the end walls of the casing about a rotation axis.
  • the photosensitive drum includes a drum and a rotational force transmitting assembly mounted at one axial end of the drum.
  • the rotational force transmitting assembly includes a drum gear, an axial return member, a rotational force transmitting head, a tooth resetting member, and a pair of rotational force receiving teeth hinged to the rotational force transmitting head by the hinge shaft.
  • the rotational force receiving tooth reciprocally rotates between the coupling position and the disengagement position around the hinge shaft.
  • the tooth resetting member is a torsion spring
  • the coil spring of the torsion spring is sleeved on the hinge shaft, a twisting arm abuts against the rotational force transmitting head, and the other twisting arm receives the tooth against the rotating force.
  • the rotation force transmitting head is provided with a limiting portion for restricting the rotational force receiving tooth from the coupling position and away from the disengagement position. The elastic restoring force of the torsion spring forces the rotational force receiving teeth against the limit portion.
  • the specific solution provided by the present invention further includes a deviation mechanism.
  • the rotational force transmitting head is provided with a force receiving section for receiving a force forcing the rotational force transmitting head to rotate relative to the drum gear about a rotational axis within a predetermined angular range.
  • the biasing mechanism applies a force to the force receiving section to force the rotary force transmitting head to rotate to the connection between the pair of rotational force receiving teeth and the process cartridge There is an angle between the insertion direction of the main body, that is, the connection is not parallel to the insertion direction.
  • a more specific solution is that when the pair of rotational force receiving teeth are in the disengaged state, the deviation mechanism forces the rotational force transmitting head to rotate to the rotational force receiving teeth to deviate from the first plane, the first plane being parallel to the insertion direction of the process cartridge to the main body, And the axis of rotation is in the first plane. Further improve the smoothness of the process box drop machine.
  • the deviation mechanism forces the rotational force transmitting head to rotate to the rotational force receiving teeth to deviate from a sector plane perpendicular to the sector plane, the sector plane
  • the apex is on the axis of rotation, and its angle bisector is arranged in a direction parallel to the insertion direction of the process cartridge to the main body. Further improve the smoothness of the process box drop machine.
  • biasing mechanism applies a force to the force receiving section to force an angle between the connecting line between the pair of the rotating force receiving teeth and the insertion direction to be greater than or equal to 45 degrees. Further improve the smoothness of the process box drop machine.
  • the invention can effectively ensure that the rotating force receiving tooth does not rotate from the coupling position away from the disengagement position when abutting against the main drive shaft, thereby effectively ensuring the completion of the coupling process, and effectively improving the smoothing process of the process cartridge. Sex.
  • FIG. 1 is a structural exploded view of a conventional rotary force transmitting assembly
  • Figure 2 is a schematic view showing a disengagement coupling manner between the rotational force transmitting assembly of Figure 1 and the main drive shaft;
  • Figure 3 is a schematic view showing a coupling manner between the rotational force transmitting assembly of Figure 1 and the main drive shaft;
  • Figure 4 is a perspective view of a first embodiment of the process cartridge of the present invention.
  • Figure 5 is a perspective view of the rotary force transmitting assembly of the first embodiment of the process cartridge of the present invention.
  • Figure 6 is an exploded perspective view showing the rotational force transmitting assembly of the first embodiment of the process cartridge of the present invention.
  • Figure 7 is a structural exploded view of the rotary force receiving head in the first embodiment of the process cartridge of the present invention.
  • Figure 8 is a partial enlarged view of A in Figure 7;
  • Figure 9 is a structural exploded view of the rotary force transmitting head, the pin shaft and the rotational force receiving tooth and the main body drive shaft in the first embodiment of the process cartridge of the present invention
  • Figure 10 is a front elevational view showing the rotary force receiving head of the first embodiment of the process cartridge of the present invention.
  • Figure 11 is a perspective view of the end cover of the first embodiment of the process cartridge of the present invention.
  • Figure 12 is a perspective view of the end cover and the rotational force transmitting assembly of the first embodiment of the process cartridge of the present invention
  • Figure 13 is a schematic view showing the structure of the deviation mechanism in the first embodiment of the process cartridge of the present invention.
  • Figure 14 is a first schematic view showing the first state of cooperation of the offset mechanism and the rotational force transmitting component in the printing process in the first embodiment of the process cartridge of the present invention
  • 15 is a schematic view showing a first state of cooperation between the offset mechanism and the rotational force transmitting component when the pair of rotational force receiving teeth in the first embodiment of the process cartridge of the present invention is in a disengaged state;
  • Figure 16 is a schematic view showing a second state of cooperation between the offset mechanism and the rotational force transmitting component when the pair of rotational force receiving teeth of the first embodiment of the present invention is in a disengaged state;
  • 17 is a schematic view showing a third state of cooperation between the offset mechanism and the rotational force transmitting component when the pair of rotational force receiving teeth of the first embodiment of the present invention is in a disengaged state;
  • 18 is a schematic view showing a fourth state of cooperation between the offset mechanism and the rotational force transmitting component when the pair of rotational force receiving teeth are in the disengaged state in the first embodiment of the process cartridge of the present invention
  • 19 is a schematic view showing a fifth state of cooperation between the offset mechanism and the rotational force transmitting component when the pair of rotational force receiving teeth are in the disengaged state in the first embodiment of the process cartridge of the present invention
  • Figure 20 is a schematic view showing a sector surface of the first embodiment of the process cartridge of the present invention.
  • Figure 21 is a schematic view showing the structure of another deviating mechanism in the first embodiment of the process cartridge of the present invention.
  • Figure 22 is a schematic view showing the state of the rotary force receiving head, the deviation mechanism and the main drive shaft of the first embodiment of the process cartridge of the present invention during the downtime;
  • Figure 23 is a perspective view of the end cover, the offset mechanism and the rotational force receiving head in the second embodiment of the process cartridge of the present invention.
  • Figure 24 is a first structural view showing the deviation mechanism in the second embodiment of the process cartridge of the present invention.
  • Figure 25 is a second schematic structural view of the deviation mechanism in the second embodiment of the process cartridge of the present invention.
  • Figure 26 is a third structural view showing the deviation mechanism in the second embodiment of the process cartridge of the present invention.
  • Figure 27 is a fourth structural view showing the deviation mechanism in the second embodiment of the process cartridge of the present invention.
  • Figure 28 is a fifth structural view showing the deviation mechanism in the second embodiment of the process cartridge of the present invention.
  • Figure 29 is a sixth structural view showing the deviation mechanism in the second embodiment of the process cartridge of the present invention.
  • Figure 30 is a view showing the seventh structure of the deviation mechanism in the second embodiment of the process cartridge of the present invention.
  • the process cartridge of the present invention employs the rotary force transmitting assembly and the photosensitive drum of the present invention
  • the embodiment of the processing cartridge embodiment includes the embodiment of the rotary force transmitting assembly and the photosensitive drum. Description of the embodiments.
  • the process cartridge 1 has a cartridge body 10 and a photosensitive drum 11 rotatably supported between the end walls of the casing 10 about a rotation axis 001, and the casing 10 has an end cover 13 provided on the driving end.
  • the photosensitive drum 11 has a drum and a rotational force transmitting assembly 2 as shown in Fig. 5, and the rotational force transmitting member 2 is attached to one axial end of the drum.
  • the rotational force transmitting assembly 2 is composed of a rotational force receiving head 3, an axial stopper 21, a spring 22, and a drum gear 23.
  • the drum gear 23 is provided with a accommodating chamber 231 which is open at one axial end thereof, and the other axial end is formed with a guide hole 232 which communicates with the accommodating chamber 231.
  • the spring 22 constitutes the axial return member of the present embodiment.
  • the rotational force receiving head 3 is composed of a rotational force transmitting head 31, a transmission shaft 32, and a number of two torsion springs 33, a pin shaft 34, and a rotational force receiving tooth 35.
  • the rotational force transmitting head 31 is composed of a cylindrical guide rod 311 and a rotational force receiving portion 312 at one axial end of the guide rod 311, and a through hole 3111 that cooperates with the transmission shaft 32 is formed in the middle portion of the guide rod 311 in the radial direction.
  • a stepped hole 3121 is recessed in the outer end wall 3120 of the rotation force receiving portion 312 opposite to the guide rod 311.
  • the port of the stepped hole 3121 is formed with an introduction surface 31210, and a pair of rotation force receiving portions 312 are formed for mounting the rotational force receiving portion.
  • a mounting groove 3122 of the tooth 35 is formed on both sides of the mounting groove 3122 with a shaft hole 3123 that cooperates with the pin shaft 34.
  • the end of the guide rod 311 adjacent to the rotational force receiving portion 312 is a force receiving portion 313.
  • the outer shape of the drum gear 23 is substantially cylindrical, and a helical gear 230 is disposed on the radially outer wall of the drum gear 23 in the axial middle portion for transmitting the rotational force received by the drum gear 23 to the other rotating members; the receiving chamber 231 is parallel
  • An input arm 233 extending toward the radial center of the drum gear 23 is provided on the inner wall of the drum gear 23 in the axial direction.
  • the other axial end of the guide rod 311 sequentially passes through the through hole formed in the axial limiting member 21, and the spring 22 and the receiving chamber 231 reach the guiding hole 232 with which the clearance is matched, so that the rotational force transmitting head 31 is opposite to the drum.
  • the gear 23 is axially reciprocable along the guide rod 311; in the circumferential direction of the drum gear 23, the transmission shaft 32 abuts against the input arm 233 at the position of the input arm 233, thereby transmitting the rotational force received by the rotational force transmitting head 31.
  • the rotational force transmitting head 31 is rotatable relative to the drum gear 23 about a rotation axis 001 within a predetermined angle range, and the predetermined angular range is affected by the input arm 233 and the transmission shaft 32.
  • the axial limiting member 21 covers the open end of the accommodating chamber 231, and the elastic restoring force of the spring 22 in the axial direction forces the transmission shaft 32 against the axial limiting member 21.
  • the upper end portion of the rotational force receiving tooth 35 is formed with a coupling surface 350
  • the lower end portion is formed with a shaft hole 351 matched with the pin shaft 34
  • the upper end portion is convexly formed with a protrusion 353 on the side surface of the coupling surface 350.
  • the lower end surface is recessed to form a receiving groove 352 for receiving the coil 330.
  • the pin 34 is engaged with the shaft hole 3123, the shaft hole 351 and the coil 330, so that the rotational force receiving tooth 35 is hinged in the mounting groove 3122, that is, hinged to the rotational force transmitting head 31 by the hinge shaft, and can be coupled at the coupling position.
  • the reciprocating rotation between the disengaged positions, and the axis of the pin 34 is perpendicular to the rotation axis 001 as shown in FIG. 6; a torsion arm 331 of the torsion spring 33 abuts against the rotational force receiving portion 312, and the other torsion arm 332 Abutting against the rotational force receiving tooth 35; the protrusion 353 abuts against the outer end wall 3120, so that the rotational force receiving tooth 35 is restricted to the coupling position, that is, the outer end wall 3120 constitutes the rotational force receiving tooth 35 from the coupling position to The retaining portion away from the disengaged position; the elastic restoring force of the torsion spring 33 forces the projection 353 against the outer end wall 3120, i.e., forces the rotational force receiving tooth 35 to be at the coupling position.
  • the second plane 091 is a plane normal to the axial direction of the pin 34
  • the third plane 092 is a plane perpendicular to the axial direction of the pin 34
  • the axis of rotation 001 shown in 4 is in the second plane 091 and the third plane 092.
  • the main body drive shaft drives the rotational force transmitting head 31 to rotate counterclockwise about the rotational axis 001.
  • the rotational force output arm 021 of the drive shaft is coupled with the rotational force receiving tooth 35, the rotational force receiving teeth 35 are coupled back to each other.
  • the side of the face 350 will abut against the abutment side wall 3124 of the mounting groove 3122, thereby transmitting a rotational force to the rotational force transmitting head 31, and ensuring the rotational force when the abutting side wall 3124 is parallel with the second flat surface 091
  • the urging force between the receiving tooth 35 and the abutting side wall 3124 is tangential to the rotational circumferential direction of the rotational force transmitting head 31, that is, the component force parallel to the second plane 091 is not generated, and the rotational force receiving tooth 35 is effectively prevented from rotating.
  • the phenomenon of opening outward is increased to improve the stability of the connection between the rotational force transmitting component and the main drive shaft.
  • the second plane 091 constitutes an axially symmetrical plane of the rotational force output arm 021, and at the same time, the projection of the two coupling faces 350 on the third plane 092 constitutes a first arc.
  • the projection of the two rotational force output arms 021 on the third plane 092 constitutes a second arc, the first arc and the second arc are concentric and equal in radius, thereby effectively ensuring that the rotational force output arm 021 receives the teeth for the rotational force
  • the applied force is also tangential to the rotational circumferential direction of the rotational force transmitting head 31 to improve the stability of the coupling between the rotational force transmitting head 31 and the main drive shaft.
  • the rotational force receiving teeth 35 are arranged in the rotational direction away from the second plane 091, that is, in the rotational direction of the rotational force transmitting head 31, the rotational force receiving teeth 35 are located between the second plane 091 and the abutting side wall 3124 Therefore, under the requirement of satisfying the strength of the rotational force receiving teeth 35, the lateral dimension of the rotational force receiving teeth 35 is reduced to improve the smoothness of the coupling and disengagement process of the rotational force transmitting assembly with the drive shaft.
  • the end cover 13 is provided with two elastic rods 12 which are arranged in parallel with each other and which cooperate with the force receiving section 313 shown in Fig. 7.
  • the rotation force transmitting member 2 is engaged with the end cover 13 as shown in Fig. 12, and the force receiving portion 313 is sandwiched between the two elastic rods 12.
  • the two elastic rods 12 are in an outwardly bent elastic deformation state due to the pressing action of the force receiving portion 313, which will apply an inward pressing reaction force to the force receiving portion 313, and the reaction force will be Torque is generated for the force receiving section 313.
  • the cross section of the force receiving section 313 is a first non-circular surface, and the first non-circular surface is formed by a first circular surface 3130 and a radial protrusion from an edge of the first circular surface 3130.
  • a protrusion surface 3131 and a second protrusion surface 3132 are formed.
  • the first protrusion surface 3131 and the second protrusion surface 3132 are symmetrically arranged with respect to the center of the center of the first circular surface 3130.
  • the size of the first protrusion face 3131 gradually decreases in a direction perpendicular to the radial direction.
  • the dimension of the second protrusion surface gradually decreases in a direction perpendicular to the radial direction.
  • the drum gear 23 rotates counterclockwise by 45 degrees, 90 degrees, 135 degrees, and 180 degrees with respect to the position shown in FIG. 14 as a pair of rotational force receiving teeth.
  • the 35 is in the disengaged state, under the elastic restoring force of the elastic rod 12 and the abutment between the transmission shaft 32 and the input arm 233, the torque generated by the elastic restoring force of the elastic rod 12 will force the rotation force transmitting head to drive
  • the rotational force receiving tooth 35 is rotated relative to the drum gear 23 about the rotational axis to a position as shown in FIGS. 16, 17, 18, and 19.
  • the cross section of the force receiving section can be replaced with the rhombic surface 1313 as shown in FIG. 21, and the above effect can also be obtained.
  • the diamond surface 1313 takes a square surface, the central angle of the sector surface 121 and the sector surface 122 will reach 90 degrees.
  • the insertion direction of the process cartridge to the host is as shown by arrow 006, the first plane 004 is disposed parallel to the insertion direction 006, and the axis of rotation 001 is within the first plane 004.
  • the rotational force receiving teeth 35 Before the process cartridge is dropped, that is, when the pair of rotational force receiving teeth 35 are in the disengaged state, as long as the line 005 between the pair of rotational force receiving teeth 35 is not parallel to the insertion direction 006, that is, the connection line 005 and the insertion direction 006 When the angle is clamped, the rotational force receiving teeth 35 can be prevented from obstructing the main drive shaft 02 during the falling process, so as to improve the smoothness of the process of dropping the process cartridge; as shown in FIG.
  • the connection 005 between the rotational force receiving teeth 35 can be deviated from the sector surface 1210 with the sector surface 121 as the upper limit and the angle bisector along the insertion direction 006 before the machine is dropped.
  • the sector 1210 is The shaded area shown in FIG. 20 is used to further improve the smoothness of the falling process; if the angle between the two sides of the scalloped surface 1210 and the adjacent one of the two sides of the scalloped surface 121 is greater than or equal to the rotational force receiving
  • the half of the central angle of the tooth 35 means that the rotational force receiving tooth 35 can be deviated from the sector 1210 before the machine is dropped.
  • the smoothness of the machine can be significantly improved. Raise; when fanned 121, 122, the central angle of the angle is 90 degrees, and the insertion direction 006 is parallel to the angle bisector of the two, that is, the scalloped surface 1210 coincides with the scalloped surface 121, and when the pair of rotational force receiving teeth 35 are in the disengaged state, the connection is made.
  • the angle between 005 and the insertion direction 006 will be greater than or equal to 45 degrees.
  • the line 005 between the pair of rotational force receiving teeth 35 is defined as a line in which the rotational force receiving teeth 35 are located at the center of the outer end wall 3120 above the outer end wall 3120.
  • the central angle of the rotational force receiving tooth 35 is defined as the center of the intersection of the axis of rotation 001 and the plane of the outer end wall 3120, and the center of the circle and the rotational force receiving tooth 35 are projected on the outer end wall 3120 above the outer end wall 3120. The angle between the two tangent lines.
  • the insertion direction 006 is the insertion direction of the process cartridge to the host during the falling process.
  • the size of the central angle of the sector faces 121, 122 is independent of the relative position between the rotational force receiving teeth 35 and the elastic rod 12, and is related to the cross sectional shape of the force receiving section 313.
  • the insertion direction 006 has an angled position to improve the smoothness of the process of dropping the process cartridge.
  • the deviation mechanism in this embodiment is composed of a first magnet, a second magnet, and a third magnet.
  • a first magnet 41 fixed to the end cover 13 and a second magnet 42 and a third magnet 43 fixed to the end of the guide rod 311 adjacent to the rotational force receiving portion 312 are used in place of the process cartridge.
  • the two elastic rods in the middle, the fixed portion of the second magnet 42 and the third magnet 43 constitute the force receiving portion of the present embodiment, and the cross-sectional shape thereof is not limited.
  • the magnetic pole lines of the first magnet 41, the second magnet 42, and the third magnet 43 are all arranged in the radial direction of the guiding rod 311 and are coplanar, and the second magnet 42 and the third magnet 43 are in the same polarity. Arranged, that is, both are fixed on opposite sides of the guide bar 311 and the magnetic pole wires are collinear.
  • the magnetic ends of the free ends of the first magnet 41 and the second magnet 42 are differently named magnetic poles, and the connection between the two rotational force receiving teeth 35 is parallel to the magnetic pole connection of the first magnet 41.
  • the first quadrant is the scalloped surface 121
  • the third quadrant is the scalloped surface 122
  • the central angles of the two scalloped surfaces are all 90.
  • the first magnet 41 is fixed on the guiding rod 311, and the second magnet 42 and the third magnet 43 are fixed to the casing in opposite poles, and the magnetic poles of the three magnets are
  • the wires are arranged along the radial direction of the guide bar 311 and are coplanar.
  • the free ends of the first magnet 41 and the second magnet 42 are different names, and the connection between the two rotational force receiving teeth 35 is orthogonal to the magnetic pole connection of the first magnet 41, and the second quadrant is the sector 121.
  • the fourth quadrant is a scalloped surface 122 with a central angle of 90 degrees.
  • the first magnet 41 is fixed on the guiding rod 311, and the second magnet 42 and the third magnet 43 are fixed to the casing in opposite poles, three magnets.
  • the pole wires are arranged along the radial direction of the guide bar 311 and are coplanar.
  • the free ends of the first magnet 41 and the second magnet 42 are different names, and the connecting line between the two rotating force receiving teeth 35 coincides with the magnetic pole connecting line of the first magnet 41, and the first quadrant is a sector 121,
  • the three quadrants are fan-shaped faces 122 with a central angle of 90 degrees.
  • the first magnet 41 is fixed on the casing, and the magnetic poles of the second magnet 42 and the third magnet 43 are fixed in the same direction on the guide rod 311, and the three magnets are
  • the pole wires are arranged along the radial direction of the guide bar 311 and are coplanar.
  • the free ends of the first magnet 41 and the second magnet 42 are different names, and the connection between the two rotational force receiving teeth 35 is orthogonal to the magnetic pole connection of the first magnet 41, and the second quadrant is the sector 121.
  • the fourth quadrant is a scalloped surface 122 with a rounded angle of 90 degrees.
  • the first magnet 41 is fixed on the guiding rod 311, and the magnetic poles of the second magnet 42 and the third magnet 43 are fixed in the same direction on the casing, and the three magnets are The pole wires are arranged along the radial direction of the guide bar 311 and are coplanar.
  • the free ends of the first magnet 41 and the second magnet 42 are different names, and the connecting line between the two rotating force receiving teeth 35 coincides with the magnetic pole connecting line of the first magnet 41, and the first quadrant is a sector 121,
  • the three quadrants are fan-shaped faces 122 with a central angle of 90 degrees.
  • the first magnet 41 is fixed on the guiding rod 311, and the magnetic poles of the second magnet 42 and the third magnet 43 are fixedly arranged on the casing, and the magnetic poles of the three magnets.
  • the wires are arranged along the radial direction of the guide bar 311 and are coplanar.
  • the free ends of the first magnet 41 and the second magnet 42 are magnetic poles of the same name, and the connection between the two rotational force receiving teeth 35 coincides with the magnetic pole connection of the first magnet 41, and the second quadrant is the sector 121, the fourth The quadrant is a scalloped surface 122 with a central angle of 90 degrees.
  • the first magnet 41 is fixed on the casing, and the magnetic poles of the second magnet 42 and the third magnet 43 are fixedly arranged on the guide rod 311, and the magnetic poles of the three magnets.
  • the wires are arranged along the radial direction of the guide bar 311 and are coplanar.
  • the free ends of the first magnet 41 and the second magnet 42 are magnetic poles of the same name, and the connecting line between the two rotating force receiving teeth 35 is orthogonal to the magnetic pole connecting line of the first magnet 41, and the first quadrant is a sector surface 121,
  • the three quadrants are fan-shaped faces 122 with a central angle of 90 degrees.
  • the magnetic pole connection of the magnet refers to a connection between the N pole and the S pole, such as a cylindrical magnet having one end of the N pole and the other end of the S pole, and the magnetic pole connection is The line connecting the center of the two ends.
  • the two rotational force receiving teeth 35 can be made to avoid the drive shaft well during the landing.
  • the deviation mechanism when the process cartridge is not restrained by the outside, the deviation mechanism forces the connection of the rotary force transmitting head to the rotational force receiving teeth to at least deviate from the insertion direction of the process cartridge to the main body, thereby improving the smoothness of the process cartridge dropping machine.
  • the structure of the deviation mechanism and the cross-sectional shape of the force receiving section are not limited to the above embodiments, and various obvious changes are also possible.
  • the invention adopts a torsion spring as a resetting member of the rotating force receiving tooth, which relatively simplifies the structure of the rotational force transmitting head, and is convenient for mounting the rotating force receiving tooth to the rotational force transmitting head.
  • the connection between the receiving teeth of the rotational force is forced to be parallel to the insertion direction of the process cartridge to the main body, and the smoothness of the process of dropping the process cartridge can be effectively improved.

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

Abstract

L'invention concerne un ensemble de transmission de force rotative, un tambour photosensible et une cartouche de traitement. L'ensemble de transmission de force rotative (2) comprend une tête de transmission de force rotative (31), un ressort de torsion (33), et une dent de réception de force rotative (35) articulée sur la tête de transmission de force rotative (31) au moyen d'un arbre d'articulation (34). La dent de réception de force rotative (35) peut pivoter autour de l'axe d'articulation (34), entre une position de connexion et une position de libération en va-et-vient. Des bobines du ressort de torsion (33) sont emmanchées sur l'arbre d'articulation (34) dont une patte (331) appuie contre la tête de transmission de force rotative (31) et l'autre patte (332) appuie contre la dent de réception de force rotative (35). La tête de transmission de force rotative (31) est pourvue d'une butée (3120) empêchant la dent de réception de force rotative de pivoter à partir de la position de connexion à une position éloignée de la position de libération, et la force de rappel élastique du ressort de torsion (33) amène la dent de réception de force rotative (35) à appuyer contre la butée (3120). En utilisant un ressort de torsion comme élément de rappel de position d'une dent, la présente invention simplifie efficacement la structure d'un ensemble de transmission de force rotative, facilite l'assemblage de l'ensemble de transmission de force rotative, et améliore le lissé dans l'élimination d'une cartouche de traitement d'une machine.
PCT/CN2017/084632 2016-05-30 2017-05-17 Ensemble de transmission de force rotative, tambour photosensible et cartouche de traitement Ceased WO2017206711A1 (fr)

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CN201610375192.3A CN105807585B (zh) 2016-05-30 2016-05-30 旋转力传递组件、感光鼓及处理盒
CN201610375192.3 2016-05-30

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WO2017206711A1 true WO2017206711A1 (fr) 2017-12-07

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CN105807585B (zh) * 2016-05-30 2018-06-19 珠海天威飞马打印耗材有限公司 旋转力传递组件、感光鼓及处理盒
CN108107697B (zh) * 2018-01-26 2024-08-23 珠海天威飞马打印耗材有限公司 处理盒及其驱动力传递组件
CN113156789B (zh) * 2021-03-11 2025-01-24 珠海天威飞马打印耗材有限公司 驱动力传递组件、旋转件、碳粉盒及电子成像设备
CN113156790B (zh) * 2021-03-11 2025-01-24 珠海天威飞马打印耗材有限公司 驱动力传递组件、旋转件、碳粉盒及电子成像设备

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EP2495619A1 (fr) * 2009-10-27 2012-09-05 Print-Rite·Unicorn Image Products Co., Ltd. of Zhuhai Module d'entraînement, tambour photosensible comportant un module d'entraînement et cassette contenant ce module
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