CN109031912B - Power transmission device and process cartridge - Google Patents
Power transmission device and process cartridge Download PDFInfo
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- CN109031912B CN109031912B CN201810917863.3A CN201810917863A CN109031912B CN 109031912 B CN109031912 B CN 109031912B CN 201810917863 A CN201810917863 A CN 201810917863A CN 109031912 B CN109031912 B CN 109031912B
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- power receiving
- transmission device
- power transmission
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims description 48
- 230000008569 process Effects 0.000 title claims description 48
- 230000009471 action Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 description 17
- 230000008878 coupling Effects 0.000 description 16
- 238000005859 coupling reaction Methods 0.000 description 16
- 210000000078 claw Anatomy 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000006880 cross-coupling reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- 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
- G03G21/1864—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 associated with a positioning function
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Battery Mounting, Suspending (AREA)
- Electrophotography Configuration And Component (AREA)
- Transmission Devices (AREA)
- Casings For Electric Apparatus (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a power transmission device and a processing box, the power transmission device is used for being combined with and separated from a power output element, the power transmission device is provided with a rotation axis L3 and comprises a power receiving element, a power transmission element and a flange; the power transmission element is positioned in the flange, and at least one part of the power receiving element is positioned in the flange; a power transmission member coupled with the power receiving member and the flange for transmitting a driving force to the flange; the power receiving member has a rotational axis L31 for engagement and disengagement with the power output member; the power receiving element, upon receiving the external force, adjusts the position relative to the power output element by rotating about its rotational axis L31.
Description
Technical Field
The present invention relates to the field of electrophotographic image forming, and more particularly, to a process cartridge detachably mountable in an electrophotographic image forming apparatus provided with a power output member outputting a driving force, in which a power transmission device for receiving the driving force is mounted, the power transmission device being coupled to the power output member and receiving the driving force output from the power output member.
Background
The process cartridge is detachably mountable to an electrophotographic image forming apparatus (hereinafter referred to simply as "apparatus") to operate, and when the process cartridge is mounted to the apparatus, a power transmission device in the process cartridge is combined with a power output member provided in the apparatus.
The power transmission device includes a power receiving member that is extendable and retractable along a rotational axis thereof, for engagement and disengagement with the power output member. Conventionally, a control mechanism for controlling the expansion and contraction of the power receiving member is provided in the process cartridge, and the extension and/or retraction of the power receiving member is performed by applying a force to the control mechanism using a cover door of the apparatus or a rail in the apparatus, etc., and then applying the force to the power receiving member by the control mechanism.
As described above, the power receiving member needs to be extended and contracted in the rotational axis direction of the power transmitting apparatus, and thus, an elastic member needs to be mounted on the power receiving member for restoring the power receiving member; and at the same time, a device for connecting the control mechanism and the power receiving member needs to be installed, which results in the complexity of the overall structure of the power transmission device and the overall structure of the process cartridge.
Disclosure of Invention
The present invention provides a power transmission device and a process cartridge having the power transmission device, in which a power receiving member does not extend and contract along a rotation axis of the power transmission device, and thus, an elastic member and a device for connecting a control mechanism and the power receiving member are not required, and the structures of the power transmission device and the process cartridge are simplified.
In order to achieve the purpose, the invention adopts the following technical scheme:
a power transmission device for engaging and disengaging with the power output member, the power transmission device having a rotation axis L3, including a power receiving member, a power transmitting member, and a flange; the power transmission element is positioned in the flange, and at least one part of the power receiving element is positioned in the flange; a power transmission member coupled with the power receiving member and the flange for transmitting a driving force to the flange; the power receiving member has a rotational axis L31 for engagement and disengagement with the power output member; the power receiving element, upon receiving the external force, adjusts the position relative to the power output element by rotating about its rotational axis L31.
The power receiving member includes a lever portion and a power receiving portion connected to the lever portion, the power receiving portion being generally elliptical when viewed along the rotation axis L31.
The power receiving element has a first state not coaxial with the power transmitting device and a second state coaxial with the power transmitting device, and the position of the power receiving element relative to the power output element is adjusted by receiving an external force of the power output element to rotate about the rotational axis L31 thereof when the power receiving element moves between the first state and the second state.
Between the first state and the second state, the power receiving member moves in a plane perpendicular to the rotation axis L3.
The power transmitting apparatus further includes a position adjusting member that is engaged with the power receiving member and the power transmitting member, respectively, and adjusts a position of the power receiving member according to a state in which the power receiving member is located, and a pushing member for pushing the power receiving member in a direction intersecting the rotational axis L3.
In the first state, the rotational axis L31 is located downstream of the rotational axis L3 in the coupling direction of the power receiving element and the power output element.
The present invention also provides a process cartridge comprising a process cartridge housing, a rotary member rotatably mounted in the process cartridge housing, and a power transmission device as described above, the power transmission device being located at one end of the process cartridge housing and receiving a driving force output from the power output member for driving the rotary member to rotate.
The processing box also comprises a bracket for supporting the power transmission device, the bracket is arranged at the same side of the power transmission device and is connected with the developing box shell, and the power transmission device passes through the bracket and is exposed out of the developing box shell.
Drawings
Fig. 1 is a schematic view of the overall structure of a process cartridge according to the present invention.
FIG. 2 is an exploded view of the rotary member and the power transmission device of the process cartridge according to the present invention.
Fig. 3 is a schematic view of the overall structure of a holder in the process cartridge according to the present invention.
Fig. 4 is an overall structural schematic view of the power receiving member in the process cartridge according to the present invention.
Fig. 5 is a sectional view of the power transmission device according to the present invention taken along the rotation axis thereof.
Fig. 6 is a schematic view showing the relative position of the power receiving element with respect to the power output element when the power receiving element is in the first state in the power transmission device according to the present invention.
Fig. 7 is a schematic view showing a state where the process cartridge is brought into engagement with the power output member when the power receiving member is in the first position of the first state as viewed along the rotational axis of the power transmission device.
Fig. 8A is a schematic view showing a state where the process cartridge starts to be coupled to the power output member when the power receiving member is in the second position of the first state as viewed along the rotational axis of the power transmission device.
Fig. 8B is a sectional view taken along the rotational axis of the power transmission device when the power receiving member is at the second position in the first state as viewed along the rotational axis of the power transmission device.
Fig. 9A is a schematic view of a state where the power receiving member starts to touch the power output member when the power receiving member is in the second position of the first state as viewed along the rotational axis of the power transmission device.
Fig. 9B is a cross-sectional view taken along the rotational axis of the power transmission device, with the power receiving member being in the second position of the first state, with the power receiving member coming into contact with the power output member.
Fig. 10 is a schematic view of the relative position of the power receiving element with respect to the power output element in the second state of the power receiving element, viewed along the rotational axis of the power transmission device.
Fig. 11A is an overall structural schematic view of another power receiving element according to the present invention.
Fig. 11B is a side view seen in a direction perpendicular to the rotational axis of another power receiving element relating to the present invention.
Fig. 11C is a plan view as viewed along the rotational axis of another power receiving element relating to the present invention.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[ integral Structure of Process Cartridge ]
Fig. 1 is a schematic view of the overall construction of a process cartridge according to the present invention, and as shown in the drawing, a process cartridge C includes a process cartridge casing 10, a rotary member 20 rotatably mounted in the process cartridge casing 10, and a power transmission device 30 at one end of the process cartridge casing 10; the process cartridge C is detachably mounted in the mounting direction a to the apparatus provided with the power output member 40.
The rotating member 20 is provided with a rotating axis L2, the power transmission device 30 is provided with a rotating axis L3, the power output member 40 is provided with a rotating axis L4, and the rotating axis L2 and the rotating axis L3 are always coaxial and are parallel to the rotating axis L4. The power output member 40 includes a cylindrical rotary shaft 41 and a pair of power output rods 42 protruding from the rotary shaft 41, and the power transmission device 30 is configured to be coupled with the power output rods 42, receive the driving force output from the power output member 40, and drive the rotary member 20 to rotate.
[ Power Transmission device ]
FIG. 2 is an exploded view of a rotary member and a power transmission device in the process cartridge according to the present invention; FIG. 3 is a schematic view showing the overall structure of a holder in the process cartridge according to the present invention; FIG. 4 is a schematic view showing the entire construction of the power receiving member in the process cartridge according to the present invention; fig. 5 is a sectional view of the power transmission device according to the present invention taken along the rotation axis thereof.
As described above, the power transmission device 30 is located at one end of the process cartridge housing 10, and preferably, the power transmission device 30 is directly connected to the rotary member 20 and located at one end of the rotary member 20; as shown in fig. 2, the power transmission device 30 includes a power receiving member 31, a position adjusting member 32, a power transmitting member 33, a flange 35, and an urging member 36; the position regulating member 32 and the power transmitting member 33 are located in the flange 35, and at least a part of the power receiving member 31 is located in the flange 35 for engagement and disengagement with the power output member 40, and when engaged with each other, the power receiving member 31 receives the driving force output from the power output member 40; the position adjusting member 32 is combined with the power receiving member 31 and the power transmission member 33 to adjust the position of the power receiving member 31 according to the state of the power receiving member 31; the power transmission member 33 is further combined with a flange 35 for transmitting the driving force to the flange, and the flange 35 is used for transmitting the driving force out to drive the rotating member 20 to rotate; the urging member 36 serves to urge the power receiving member 31 in a direction intersecting the rotation axis L3.
The power receiving part 31 has a rotation axis L31, and the power receiving part 31 is movable relative to the rotary member 20 by the urging action of the urging member 36, in other words, as shown in fig. 1, the rotation axis L31 has a state of being parallel to the rotation axis L2 or the rotation axis L3.
As shown in fig. 2, the position adjusting member 32 forms a cross coupling with the power receiving member 31 and the power transmission member 33, and specifically, the position adjusting member 32 includes a middle body 321, a first protrusion 322 and a second protrusion 323 respectively disposed at both sides of the middle body, the power receiving member 31 is provided with a first recess 313b for coupling with the first protrusion 322, the power transmission member 33 is provided with a second recess 333 for coupling with the second protrusion 323, and the first protrusion 322 and the second protrusion 323 extend in orthogonal directions, so that the power receiving member 31 can be arbitrarily moved in a plane orthogonal to the rotation axis L3 with respect to the power transmission member 33 or the rotary member 22 when the power receiving member 31, the position adjusting member 32 and the power transmission member 33 are coupled with each other.
As further shown in fig. 2, the power transmission member 33 includes a cylinder 331, a second recess 333 provided on a face facing the position regulating member 32, and a power transmission protrusion 332 protruding from a circumferential surface of the cylinder 331, and further, in order to prevent the power transmission member 33 from falling off, the power transmission device 30 further includes a base coupled to the flange 35, so that the power transmission member 33 is supported by the base 34, and the power transmission protrusion 332 is coupled to the flange 35; the base 34 includes a base plate 341 and a coupling protrusion 342 protruding from the base plate 341, and the base 34 is coupled with the flange 35 by the coupling protrusion 342.
As shown in fig. 1 and 2, the process cartridge C further includes a bracket 11 for supporting the power transmission device 30, the bracket 11 being on the same side as the power transmission device 30 and being connected to the developing cartridge casing 10, the power transmission device 30 being exposed outside the developing cartridge casing 10 through the bracket 11.
As shown in fig. 3, the bracket 11 includes a bracket body 111, a through hole 112 provided on the bracket body 111, and a guide groove 113 provided adjacent to the through hole 112, the power transmission device 30 passing through the through hole 112, the guide groove 113 for guiding the power output member 40 during mounting and dismounting of the process cartridge C, the guide groove 113 being located downstream of the through hole 112 in the mounting direction a of the process cartridge C (the coupling direction of the power receiving member 31 to the power output member 40) (as shown in fig. 6); as shown in fig. 2, the urging member 36 is preferably a torsion spring, and the torsion spring 36 is mounted on the developing cartridge casing 10 or the bracket 11 with one end abutting against the developing cartridge casing 10 or the bracket 11 and the other end abutting against the power receiving member 31; in the embodiment of the present invention, it is preferable that the torsion spring 36 is mounted on the bracket 11, as shown in fig. 3, the bracket 11 further includes a mounting post 114 disposed on the bracket body 111, and the torsion spring 36 is mounted on the mounting post 114.
As shown in fig. 4, the power receiving part 31 includes a lever portion 312, a power receiving portion 311 connected to the lever portion 312, and the power receiving portion 311 includes a chassis 311a, a power receiving pawl 311b extending from the chassis 311a to be away from the lever portion 312, and a recessed portion 311c recessed from the chassis 311a to be close to the lever portion 312, that is, along the rotation axis L31, the recessed portion 311c is closer to the lever portion 312 than the power receiving pawl 311 b; in the embodiment of the present invention, the chassis 311a is connected to the rod portion 312, and the chassis 311a has an elliptical shape, and when viewed along the rotation axis L31, the power receiving portion 311 has an elliptical shape as a whole; as shown, in the rotational direction r of the power receiving member 31, with respect to the rotational axis L31, the chassis 311a has two closest points 311d and two farthest points 311e, respectively; on a plane perpendicular to the rotation axis L31, the closest point 311d is closest to the rotation axis L31, and the farthest point 311e is farthest from the rotation axis L31; in the rotating direction r of the power receiving element 31, a distance between the nearest point 311d and the farthest point 311e is arc-shaped; further, the power receiving claws 311b are provided in two symmetrical positions with respect to the rotation axis L31, and further, the two power receiving claws 311b are located at positions corresponding to the two farthest points 311e of the chassis 311a, respectively.
As further shown in fig. 4, the power receiving element 31 further includes a coupling plate 313 coupled to the shaft portion 312, the coupling plate 313 being configured to be coupled to the position adjusting member 32, and specifically, the coupling plate 313 includes a disk 313a and a first groove 313b provided on the disk 313a, the first groove 313b being recessed from a side facing the position adjusting member 32 to a side close to the shaft portion 312.
Of course, the structure of the cross coupling may also be that two orthogonal grooves are arranged on the position adjusting element 32, and correspondingly, the power receiving element 31 and the power transmission element 33 are provided with protrusions matched with the grooves; it is also possible to provide a groove and a projection orthogonal to each other on the position adjusting member 32, and to provide a part to be combined with the position adjusting member 32 on the power receiving member 31 and the power transmitting member 33, respectively.
As shown in fig. 5, when the power receiving element 31 is not urged by the urging member 36, and the rotation axis L31 of the power receiving element 31 is coaxial with the rotation axis L3 of the power transmission device 30, the spacing between the power receiving element 31 and the inner wall of the flange 35 is h1, and the spacing between the connection disc 313 and the inner wall of the flange 35 is h 2; the power receiving part 31 moves in a plane perpendicular to the rotation axis L3 under the urging action of the urging piece 36, and specifically, the power receiving part 31 can move in a plane perpendicular to the rotation axis L3, and the maximum distance of the movement is determined by the smaller of the distance h1 and the distance h 2.
[ combination of Power receiving element and Power output element ]
Fig. 6 is a schematic view showing the relative position of the power receiving element with respect to the power output element when the power receiving element is in the first state in the power transmission device according to the present invention.
In order to more clearly observe the process of coupling the power receiving element 31 with the power output element 40, only the power transmission device 30, the carrier 11 and the power output element 40 are shown in the following figures.
As shown in fig. 6, the process cartridge C is moved in the mounting direction a in a direction to approach the power output element 40, at which time the power receiving element 31 is in the first state by the urging action of the urging member 36, the rotation axis L31 of the power receiving element 31 is not coaxial with the rotation axis L3 of the power transmission device 30, or the rotation axis L31 of the power receiving element 31 is not coaxial with the rotation axis L2 of the rotary member 20, and the rotation axis L31 is located downstream of the rotation axis L3 in the mounting direction a, that is, the rotation axis L31 is closer to the power output element 40 than the rotation axis L3, or the rotation axis L31 is closer to the guide groove 113 than the rotation axis L3.
In the embodiment of the present invention, when the power receiving part 31 is in the first state, the oval chassis 311a may stay at any position in the rotation direction of the power receiving part 31, and likewise, the power receiving pawl 311b on the chassis 311a may stay at any position, and hereinafter, the coupling process of the power receiving part 31 and the power output part 40 will be described with the power receiving pawl 311b at two extreme positions.
Fig. 7 is a schematic view showing a state where the process cartridge is brought into engagement with the power output member when the power receiving member is in the first position of the first state as viewed along the rotational axis of the power transmission device.
As shown in fig. 7, in the first position where the power receiving element 31 is in the first state, the closest point 311d of the chassis 311a is located furthest downstream of the power receiving element 31 in the mounting direction a and faces the guide groove 113, a line connecting the two closest points 311d is parallel to the mounting direction a, a line connecting the two furthest points 311e is perpendicular to a line in which the mounting direction a is located, or a line connecting the two power receiving claws 311b is perpendicular to a line in which the mounting direction a is located, and the opening 311f between the two power receiving claws 311b faces the power output element 40 in the rotational direction r of the power receiving element 31.
When the power receiving element 31 in the first position is coupled to the power output element 40, interference therebetween is minimized, and the power receiving element 31 and the power output element 40 can be smoothly coupled. Even if there is a partial overlapping area of the power receiving element 31 and the power output element 40 along the rotation axis L3, since the nearest point 311d and the farthest point 311e are adjacent in the shape of a circular arc, the nearest point 311d and the farthest point 311e are formed as the highest points between two adjacent circular arcs, and when the power receiving element 40 touches the nearest point 311d of the power receiving element 31, the power receiving element 31 will move in the direction opposite to the mounting direction a under the force of the power output element 40, and at the same time the reaction force of the power receiving element 31 to the power output element 40 will force the power receiving element 40 to retract in the direction away from the cartridge C, thereby ensuring smooth coupling of the power receiving element 31 and the power output element 40.
FIG. 8A is a schematic view showing a state where the process cartridge is brought into engagement with the power output member when the power receiving member is in the second position of the first state as viewed along the rotational axis of the power transmission device; FIG. 8B is a cross-sectional view taken along the rotational axis of the power transmitting apparatus with the power receiving member in the second position of the first state as viewed along the rotational axis of the power transmitting apparatus; fig. 9A is a schematic view of the state where the power receiving member starts to touch the power output member when the power receiving member is in the second position of the first state as viewed along the rotational axis of the power transmission device; FIG. 9B is a cross-sectional view taken along the rotational axis of the power transmission device with the power receiving element initially touching the power output element in a second position of the first state as viewed along the rotational axis of the power transmission device; fig. 10 is a schematic view of the relative position of the power receiving element with respect to the power output element in the second state of the power receiving element, viewed along the rotational axis of the power transmission device.
As shown in fig. 8A, the power receiving element 31 is in the second position of the first state, the farthest point 311e of the chassis 311a is located at the most downstream of the power receiving element 31 in the mounting direction a and faces the guide groove 113, the connecting line of the two closest points 311d is perpendicular to the mounting direction a, the connecting line of the two farthest points 311e is parallel to the line of the mounting direction a, or the connecting line of the two power receiving claws 311b is parallel to the line of the mounting direction a, and the connecting line of the opening 311f between the two power receiving claws 311b is perpendicular to the mounting direction a in the rotational direction r of the power receiving element 31.
As shown in fig. 8B in combination with fig. 8A, the power receiving member 31 has its rotation axis L31 not coaxial with the rotation axis L3 of the power transmission device 30 by the urging action of the urging member 36, the rotation axis L31 is located downstream of the rotation axis L3 in the mounting direction a, the rod portion 312 abuts against the inner wall of the flange 35, and the distance between the rotation axis L31 and the rotation axis L3 is d 1.
When the process cartridge C is further mounted in the mounting direction a, the pto 40 enters the guide groove 113 and contacts the farthest point 311e of the pto 31, and similarly, the farthest point 311e is the highest point of the two adjacent arcs, and when the farthest point 311e receives a force opposite to the mounting direction a, the pto will rotate along the rotation axis L3, and at the same time, the pto 31 overcomes the force of the urging member 36 and is adjusted by the position adjusting member 32 to move in a direction opposite to the mounting direction a, so that the rotation axis L31 gradually approaches the rotation axis L3, and the distance between the rotation axis L31 and the rotation axis L3 gradually decreases in the mounting direction a, as shown in fig. 9B, taking any position during the movement of the pto 31 as an example, the distance between the rotation axis L31 and the rotation axis L3 is d2, and d2 < d1 is satisfied.
Thus, the movement of the power receiving part 31 can be described as: when the most distant point 311e of the receiver 31 is acted by the force of the power take-off 40, the receiver 31 is moved in the direction opposite to the mounting direction a against the urging force of the urging piece 36 while rotating along the rotation axis L31 thereof, so that the rotation axis L31 gradually approaches the rotation axis L3 until the receiver 31 reaches the second state shown in fig. 10, at which time the receiver 31 and the power take-off 40 are completely received by the recess 311c of the power take-off in conjunction with the rotation axis 41 of the power take-off 40, and stable transmission of driving force between the power take-off 40 and the receiver 31 can be achieved even if the power take-off 40 is slightly shaken.
It should be noted that the rotation of the receiver 31 about its rotation axis L31 when acted by the pto 40 can be regarded as the adjustment of the position of the receiver 31 relative to the pto 40, that is, the position of the receiver 31 can be adjusted relative to the pto 40 after the force is applied until the receiver 31 reaches the first position, that is, the interference of the receiver 31 with the engagement with the pto 40 is minimized, and at the same time, the receiver 31 also moves in a plane intersecting the mounting direction a, preferably, the receiver 31 moves in a plane orthogonal to the mounting direction a, and more preferably, the moving direction of the receiver 31 is collinear with the mounting direction a.
As described above, when the opening 311f between the two power receiving claws 311b of the receiver 31 faces the power output element 40, specifically, when the closest point 311d of the receiver 31 faces the power output element 40, that is, the receiver 31 is located at the first position, the receiver 31 will move in the direction opposite to the mounting direction a under the force of the power output element 40 after the receiver 31 receives the force of the power output element 40, or the receiver 31 moves from the first state to the second state under the force of the power output element 40; when the line connecting the openings 311f of the two power receiving claws 311b of the power receiving element 31 is perpendicular to the mounting direction a, specifically, when the farthest point 311e of the power receiving element 31 faces the power output element 40, that is, the power receiving element 31 is located at the second position, the power receiving element 31 will move in the direction opposite to the mounting direction a under the force of the power output element 40 after the power receiving element 31 is acted by the power output element 40, or the power receiving element 31 moves from the first state to the second state under the force of the power output element 40, and at the same time, the power receiving element 31 rotates around the rotation axis L31 thereof to adjust from the second position to the first position.
As apparent from the above description, the receiving element 31 according to the embodiment of the present invention does not need to adjust its position when it is acted by the power output element 40, only when the closest point 311d of the receiving element 31 faces the power output element 40, that is, the receiving element 31 is located at the first position; the receiver 31 is in the non-first position whenever the pto 40 touches the receiver 31, and once the pto 31 is acted upon by the pto 40, the receiver 31 is rotated about its rotational axis L31 to adjust its position relative to the pto 40 until the first position is reached.
The power receiving element 31 adjusts the relative position with the power output element 40 by rotating about its rotational axis L31 during the movement from the first state to the second state until reaching the first position; if the rotation axis L31 of the power receiving member 31 is not coaxial with the rotation axis L3 of the power transmission device 30 to both, and the power receiving member 31 has not yet reached the first position, the power receiving member 31 can further overcome the force of the urging member 36 by the power output member 40 and continue to move in the direction opposite to the mounting direction a until the first position is reached.
Of course, the position regulating member 32 is not essential, and accordingly, the urging member 36 is not necessarily provided, and at this time, the power transmitting device 30 includes the power receiving member 31, the power transmitting member 33, and the flange 35, the power transmitting member 33 is located in the flange 35, a part of the power receiving member 31 is also located in the flange 35, and the power transmitting member 33 is engaged with the power receiving member 31 and the flange 35, respectively, for transmitting the driving force received by the power receiving member 31 to the flange 35, and the power receiving member 31 adjusts the position of the power receiving member 31 with respect to the power output member 40 by rotating about the rotational axis L31 thereof after receiving the external force applied by the power output member 40, specifically, the power receiving member 31 is adjusted to the first position about the rotational axis L31 thereof.
[ disengagement of Power receiving element from Power output element ]
The above description has been made of the process of engaging the power receiving element 31 with the power output element 40, and when it is necessary to take the process cartridge C out of the apparatus, the process cartridge C is moved in the direction opposite to the mounting direction a, and the power receiving element 31 is moved from the second state to the first state in the direction shown in the mounting direction a by the urging action of the urging member 36, and at the same time, the power receiving element 31 is gradually adjusted toward the first position by the adjusting action of the position adjusting member 32 to facilitate disengagement of the power receiving element 31 from the power output element 40 until the power receiving element 31 reaches the first state.
FIG. 11A is a schematic view of the overall construction of another power receiving element according to the present invention; fig. 11B is a side view seen in a direction perpendicular to the rotational axis of another power receiving element relating to the present invention; fig. 11C is a plan view as viewed along the rotational axis of another power receiving element relating to the present invention.
Further, the present invention provides another modified power receiving element, and the same structures as those of the above power receiving element 31 are given the same numerals, and the same structures will not be described again.
As shown in fig. 11A, the power receiving pawl 311b of the modified power receiving member 31 includes at least a first surface 311b1, a third surface 311b3, and a fifth surface 311b5 that are sequentially distributed on the power receiving pawl 311b in the rotation direction r, and the first surface 311b, the third surface 311b3, and the fifth surface 311b5 are connected to each other; wherein the first surface 311b1 and the third surface 311b3 serve as guide surfaces for guiding the power receiving element 40 during coupling and decoupling of the power receiving element 31 with the power output element 40, respectively.
As shown in fig. 11B and 11C, the first surface 311B1 is located at the outermost side of the power receiving pawl 311 with respect to the rotation axis L31, and the first surface 311B1 is inclined with respect to the rotation axis L31, and the direction of inclination thereof can be described as: along the rotation axis L31, the closer the first surface 311b1 is to the chassis 311a in the direction perpendicular to the rotation axis L31, the greater the distance of the first surface 311b1 from the rotation axis L31; when the power receiving element 40 comes into contact with the first surface 311b1 during the coupling of the power receiving element 31 with the power receiving element 40, the power receiving element 40 is more easily urged in a direction away from the process cartridge C by the inclined first surface 311b1, and thus, the coupling of the power receiving element 31 with the power receiving element 40 is more smoothly performed.
The third surface 311b3 is located at the innermost side of the power receiving pawl 311 with respect to the rotation axis L31 and is inclined with respect to the rotation axis L31, and the direction of inclination thereof can be described as: along the rotation axis L31, the closer the third surface 311b3 is to the chassis 311a in the direction perpendicular to the rotation axis L31, the smaller the distance of the third surface 311b3 from the rotation axis L31; when the power receiving element 40 comes into contact with the third surface 311b3 during disengagement of the power receiving element 31 from the power receiving element 40, the power receiving element 40 is more easily urged in a direction away from the process cartridge C by the inclined third surface 311b3, and thus, the power receiving element 31 is more smoothly disengaged from the power receiving element 40.
The outermost side and the innermost side refer to a plane perpendicular to the rotation axis L31, in which the distance of the power receiving pawl 311 with respect to the rotation axis L31 is the innermost side, that is, the side of the power receiving pawl 311 closest to the rotation axis L31, and the side of the power receiving pawl 311 farthest from the rotation axis L31 is the outermost side. According to the above-described inclined directions of the first surface 311b1 and the third surface 311b3, the first surface 311b1 and the third surface 311b3 intersect with each other when they are extended.
Further, as shown in fig. 11A and 11C, the modified power receiving member 31 further includes a second surface 311b2 between the first surface 311b1 and the third surface 311b3, and a fourth surface 311b4 between the third surface 311b3 and the fifth surface 311b5, and the second surface 311b2 and the fourth surface 311b4 serve as transition surfaces for reducing interference between the power receiving member 31 and the power output member 40 during coupling and decoupling of the power receiving member 31 and the power output member 40, and ensuring smoother coupling and decoupling of the power receiving member and the power output member.
Further, as shown in the drawing, the power receiving element 31 further includes a tip end face 311b6 located at the tip end of the power receiving claw 311, the tip end face 311b6 being farthest from the chassis 311a along the rotation axis L31, and the tip end face 311b6 intersecting with each of the first surface 311b1, the second surface 311b2, the third surface 311b3, the fourth surface 311b4, and the fifth surface 311b 5; preferably, the distal end surface 311b6 is a flat surface, so that the strength of the power receiving element 31 is enhanced in the direction of the rotation direction r of the power receiving element 31, and the stability of the power receiving element 31 can be greatly improved.
The power receiving member 31 in the power transmission device 30 according to the present invention does not extend and contract along the rotational axis L3 of the power transmission device 30, and therefore, the elastic member and the means for connecting the control mechanism and the power receiving member in the prior art are not required, and the structures of the power transmission device and the process cartridge are simplified.
Claims (7)
1. A power transmission device for engaging and disengaging with the power output element, the power transmission device having a rotation axis L3, including a power receiving element, a power transmitting element, a pushing element engaged with the power receiving element, and a flange;
the power transmission element is positioned in the flange, and at least one part of the power receiving element is positioned in the flange;
a power transmission member coupled with the power receiving member and the flange for transmitting a driving force to the flange;
the power receiving member has a rotational axis L31 for engagement and disengagement with the power output member;
the power receiving member has a first state not coaxial with the power transmitting device and a second state coaxial with the power transmitting device,
the power receiving element is in a first state under the urging action of the urging element before the power transmission device is combined with the power output element, at the moment, the rotating axis L31 is positioned at the downstream of the rotating axis L3 along the combining direction of the power receiving element and the power output element, and the position of the power receiving element relative to the power output element is adjusted by rotating around the rotating axis L31 of the power receiving element after receiving external force;
after the power transmission device is combined with the power output element, the power receiving element is in a second state;
after the power transmission device is separated from the power output part, the power receiving part returns to the first state under the urging action of the urging part;
the power receiving member does not telescope along its rotational axis during engagement and disengagement of the power transmitting device and the power output member.
2. The power transmission device according to claim 1, wherein the power receiving member includes a lever portion and a power receiving portion connected to the lever portion, the power receiving portion being oval as a whole when viewed along the rotation axis L31.
3. The power transmission device as claimed in claim 2, wherein the power receiving member is adjusted in position relative to the power output member by receiving an external force of the power output member to rotate about its rotational axis L31 when moving between the first state and the second state.
4. The power transmission device according to claim 3, wherein the power receiving member moves in a plane perpendicular to the rotation axis L3 between the first state and the second state.
5. The power transmission device according to claim 4, further comprising a position adjusting member that is engaged with the power receiving member and the power transmitting member, respectively, and adjusts a position of the power receiving member according to a state in which the power receiving member is located.
6. A process cartridge, wherein the process cartridge comprises a cartridge housing, a rotary member rotatably mounted in the cartridge housing, and a power transmission device according to any one of claims 1 to 5, the power transmission device being located at one end of the cartridge housing and receiving a driving force output from the power output member for driving the rotary member to rotate.
7. A process cartridge according to claim 6, further comprising a holder for supporting the power transmission device, the holder being on the same side as the power transmission device and being connected to the developing cartridge housing, the power transmission device being exposed to the outside of the developing cartridge housing through the holder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018212592441 | 2018-08-06 | ||
| CN201821259244.1 | 2018-08-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109031912A CN109031912A (en) | 2018-12-18 |
| CN109031912B true CN109031912B (en) | 2021-01-15 |
Family
ID=63875721
Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821305199.9U Expired - Fee Related CN208537916U (en) | 2018-08-06 | 2018-08-06 | Power transmission and handle box |
| CN201821304518.4U Active CN208537914U (en) | 2018-08-06 | 2018-08-06 | Power reception part, power transmission and handle box |
| CN201810917863.3A Expired - Fee Related CN109031912B (en) | 2018-08-06 | 2018-08-13 | Power transmission device and process cartridge |
| CN201810917281.5A Expired - Fee Related CN108710277B (en) | 2018-08-06 | 2018-08-13 | Power receiving member, power transmitting device, and process cartridge |
| CN201821763489.8U Expired - Fee Related CN209167825U (en) | 2018-08-06 | 2018-10-29 | Power reception part, power transmission and handle box |
| CN201811264282.0A Active CN109100926B (en) | 2018-08-06 | 2018-10-29 | Power receiving member, power transmission device, and process cartridge |
| CN201920101612.8U Expired - Fee Related CN209388121U (en) | 2018-08-06 | 2019-01-21 | Power transmission and handle box |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821305199.9U Expired - Fee Related CN208537916U (en) | 2018-08-06 | 2018-08-06 | Power transmission and handle box |
| CN201821304518.4U Active CN208537914U (en) | 2018-08-06 | 2018-08-06 | Power reception part, power transmission and handle box |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810917281.5A Expired - Fee Related CN108710277B (en) | 2018-08-06 | 2018-08-13 | Power receiving member, power transmitting device, and process cartridge |
| CN201821763489.8U Expired - Fee Related CN209167825U (en) | 2018-08-06 | 2018-10-29 | Power reception part, power transmission and handle box |
| CN201811264282.0A Active CN109100926B (en) | 2018-08-06 | 2018-10-29 | Power receiving member, power transmission device, and process cartridge |
| CN201920101612.8U Expired - Fee Related CN209388121U (en) | 2018-08-06 | 2019-01-21 | Power transmission and handle box |
Country Status (1)
| Country | Link |
|---|---|
| CN (7) | CN208537916U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208537916U (en) * | 2018-08-06 | 2019-02-22 | 中山市迪迈打印科技有限公司 | Power transmission and handle box |
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| JP5344580B2 (en) * | 2009-02-27 | 2013-11-20 | キヤノン株式会社 | Cartridge and electrophotographic image forming apparatus |
| CN103885306B (en) * | 2014-03-10 | 2017-01-11 | 珠海天威飞马打印耗材有限公司 | Driving assembly, roller and processing box |
| US9846409B2 (en) * | 2014-05-06 | 2017-12-19 | Apex Technology Co., Ltd. | Processing cartridge and driving assembly thereof |
| CN106610576B (en) * | 2015-10-26 | 2019-08-09 | 中山诚威科技有限公司 | A kind of driven unit and handle box |
| CN107402509B (en) * | 2016-05-20 | 2023-10-20 | 纳思达股份有限公司 | Driving component and processing box comprising same |
| CN108153129B (en) * | 2017-08-14 | 2024-01-30 | 珠海市拓佳科技有限公司 | Power transmission device and process cartridge |
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2018
- 2018-08-06 CN CN201821305199.9U patent/CN208537916U/en not_active Expired - Fee Related
- 2018-08-06 CN CN201821304518.4U patent/CN208537914U/en active Active
- 2018-08-13 CN CN201810917863.3A patent/CN109031912B/en not_active Expired - Fee Related
- 2018-08-13 CN CN201810917281.5A patent/CN108710277B/en not_active Expired - Fee Related
- 2018-10-29 CN CN201821763489.8U patent/CN209167825U/en not_active Expired - Fee Related
- 2018-10-29 CN CN201811264282.0A patent/CN109100926B/en active Active
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2019
- 2019-01-21 CN CN201920101612.8U patent/CN209388121U/en not_active Expired - Fee Related
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| JP2010204384A (en) * | 2009-03-03 | 2010-09-16 | Canon Inc | Image forming device |
| CN106353994A (en) * | 2015-07-17 | 2017-01-25 | 中山诚威科技有限公司 | Processing cartridge |
| CN106896686A (en) * | 2015-12-17 | 2017-06-27 | 中山诚威科技有限公司 | A kind of power transmission and photo-sensitive cell and handle box |
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| CN208537916U (en) * | 2018-08-06 | 2019-02-22 | 中山市迪迈打印科技有限公司 | Power transmission and handle box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108710277B (en) | 2021-07-06 |
| CN208537916U (en) | 2019-02-22 |
| CN209167825U (en) | 2019-07-26 |
| CN209388121U (en) | 2019-09-13 |
| CN108710277A (en) | 2018-10-26 |
| CN109031912A (en) | 2018-12-18 |
| CN109100926B (en) | 2024-09-27 |
| CN109100926A (en) | 2018-12-28 |
| CN208537914U (en) | 2019-02-22 |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Power transmission device and processing box Effective date of registration: 20220104 Granted publication date: 20210115 Pledgee: Science and Technology Branch of Torch Development Zone of Zhongshan Rural Commercial Bank Co.,Ltd. Pledgor: ZHONGSHAN DIMAI PRINT TECHNOLOGY CO.,LTD. Registration number: Y2021980017460 |
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Granted publication date: 20210115 |
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