CN209980019U - Power transmission device and developing cartridge - Google Patents
Power transmission device and developing cartridge Download PDFInfo
- Publication number
- CN209980019U CN209980019U CN201920969899.6U CN201920969899U CN209980019U CN 209980019 U CN209980019 U CN 209980019U CN 201920969899 U CN201920969899 U CN 201920969899U CN 209980019 U CN209980019 U CN 209980019U
- Authority
- CN
- China
- Prior art keywords
- power
- power receiving
- power output
- developing cartridge
- transmission device
- 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.)
- Active
Links
Images
Landscapes
- Electrophotography Configuration And Component (AREA)
Abstract
The utility model relates to a power transmission device and a developing box with the power transmission device, wherein the power transmission device is used for being combined with and separated from an external power output part and comprises a power receiving part which is telescopically arranged in the power transmission device; the power receiving element includes a plurality of power receiving claws for receiving a driving force, and the power output element has a rotational axis L3; during the period from the initial disengagement of the power receiver from the power output member until the two members are completely disengaged, the rotational axis L3 is always located between the inner side surfaces of the two oppositely disposed power receiving claws, and as the developing cartridge is moved in a direction away from the power output member, the power receiver is separated from the power output member without contact, and therefore, the friction therebetween can be effectively reduced.
Description
Technical Field
The utility model relates to an electrophotographic imaging field especially relates to a detachably installs the developing cartridge in electrophotographic imaging apparatus and for developing cartridge casing telescopic power transmission device.
Background
The printer is one of the electrophotographic image forming apparatuses, a power output part is arranged in the existing color printer, the developing cartridges respectively containing four colors of carbon powder are installed around a rotating frame, and the four developing cartridges are respectively combined with and separated from the power output part along with the rotation of the rotating frame when the color printer works so as to realize that the driving force is transmitted to the developing cartridges from the power output part.
Because only one power output part is arranged in the printer, and the power output part does not need to be arranged for each developing box, the volume of the color printer can be greatly reduced; however, the power receiving element in the developing cartridge needs to be continuously engaged with and disengaged from the power output element provided in the printer, and there is a power transmission device in which the engagement and disengagement of the power receiving element with the power output element is achieved by arranging the power receiving element therein to be tiltable with respect to the rotational axis of the power output element, and the power receiving element and the power output element are kept in contact while being disengaged from the power output element although the power receiving element is tiltable, and the power receiving element is frictionally passed with respect to the power output element with the rapid rotation of the rotating frame, and so repeatedly, the wear of both the power receiving element and the power output element occurs to different degrees.
SUMMERY OF THE UTILITY MODEL
The utility model provides a power transmission device is provided with telescopic power receiving part among this power transmission device, and receives the in-process that piece and power take off piece break away from the combination at power, and friction between the two can effectively reduce.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the power transmission device is used for being combined with and separated from an external power output element and comprises a power receiving element telescopically positioned in the power transmission device; the power receiving element includes a plurality of power receiving claws for receiving a driving force, and the power output element has a rotational axis L3; the rotational axis L3 is always located between the inner side faces of the two oppositely disposed power receiving pawls during the period from the initial disengagement of the power receiving element from the power output element until the two are completely disengaged.
When the power receiving element is completely disengaged from the power output element, there is no overlap between the power receiving element and the power output element when viewed in a direction perpendicular to the rotational axis L3.
The power transmission device further includes a holder for holding the power receiving member in a non-inclined state, a slider for providing a sliding plane for the holder and sliding with the expansion and contraction of the power receiving member, a flange, a support member for supporting the power receiving member, an elastic member for providing a restoring force for the extension of the power receiving member, and a transmission member passing through the power receiving member and engageable with the flange for transmitting the driving force received by the power receiving member to the flange.
The utility model also provides a developing box, including the developing box casing, rotatably install the rotating member in the developing box casing, be located a terminal protecting cover of developing box casing and power transmission device, power transmission device is used for combining and breaking away from the combination with power take-off spare, and receives the drive power of power take-off spare output in order to drive the rotating member rotatory, including the power receiving part that is telescopic for the developing box casing; the power receiving element includes a plurality of power receiving claws for coupling with a power output element having a rotation axis L3; the rotational axis L3 is always located between the inside faces of the two oppositely disposed power receiving claws during the period from the initial disengagement of the power receiving element from the power output element until the two are not engaged at all.
The protecting cover comprises a protecting cover body and a through hole arranged on the protecting cover body, a limiting plate is further arranged along the circumference of the through hole, the power receiving piece penetrates through the through hole, and the retaining piece is limited by the limiting plate and cannot be disengaged from the flange.
The side of the limiting plate facing the developing box shell is also provided with a first inclined surface, and the circumference of the retaining piece is also provided with a second inclined surface matched with the first inclined surface.
The power transmission device further includes a snap-in member for transmitting force between the power receiving member and the retaining member.
As described above, in the process of disengaging the power receiving element from the power output element, the rotational axis L3 of the power output element is always located between the inner side surfaces of the two oppositely disposed power receiving claws of the power receiving element until the two are completely disengaged, and as the developing cartridge is moved in a direction away from the power output element, the power receiving element is separated from the power output element without contact, and therefore, the friction therebetween can be effectively reduced.
Drawings
Fig. 1 is a perspective view of a developing cartridge according to the present invention.
Fig. 2 is a schematic view of the overall movement locus of the developing cartridge according to the present invention.
Fig. 3 is an exploded view of the power transmission device in the developing cartridge according to the present invention.
Fig. 4A and 4B are perspective views of the protective cover in the developing cartridge according to the present invention.
Fig. 5A and 5B are schematic views showing a state where the power receiving member is coupled to the power output member in the developing cartridge according to the present invention.
Fig. 6A and 6B are schematic views showing a state where the power receiving member is just disengaged from the power output member in the developing cartridge according to the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a perspective view of a developing cartridge according to the present invention; fig. 2 is a schematic view of the overall movement locus of the developing cartridge according to the present invention.
The developing cartridge D includes a developing cartridge housing 10, a rotary 13 rotatably mounted in the developing cartridge housing 10, an end cap 11 at one end of the developing cartridge housing 10, a protective cover 12, and a power transmission device 20; the developing cartridge housing 10 contains a developer required for development, the developer is supplied to the outside by the rotary 13, the power transmission device 20 is used for receiving a driving force from the outside to drive the rotary 13 to rotate, the end cover 11 is connected with the developing cartridge housing 10 and is used for supporting the power transmission device 20 or the rotary 13, and the protective cover 12 is located at the outermost side of the developing cartridge D and is used for protecting the power transmission device 20.
In the embodiment of the present invention, the power transmission device 20 has a rotation axis L2, the rotary member 13 has a rotation axis L1, the rotation axis L1 is not coaxial with the rotation axis L2, but they are parallel to each other, the power transmission device 20 transmits the driving force received from the outside to the rotary member 13 through the gear train; when the printer works, the four developing cartridges D rotate around the point C in fig. 2, the power output member 30 is fixedly installed in the printer, each developing cartridge D is provided with the power transmission device 20, and when the power transmission device 20 in one developing cartridge is combined with the power output member 30, the rotating member 13 in the corresponding developing cartridge D is driven to rotate; as shown, the pto member 30 includes a pto shaft 31 and a pto lever 32 provided on the pto shaft 31.
Fig. 3 is an exploded schematic view of a power transmission device in a developing cartridge according to the present invention; fig. 4A and 4B are perspective views of the protective cover in the developing cartridge according to the present invention.
As shown in fig. 3, the power transmission device 20 includes a power receiving member 21, a holding member 22, a sliding member 23, a flange 24, a support member 25, an elastic member 26, and a transmitting member 27; wherein, the power receiving element 21 is used for combining with the power output element 30 and receiving the driving force output by the power output element 30, the holding element 22 is used for holding the power receiving element 21 in a non-inclined state, the sliding element 23 is used for providing a sliding plane for the holding element 22 and sliding along with the expansion and contraction of the power receiving element 21, the transmission element 27 passes through the power receiving element 21 and can be combined with the flange 24 for transmitting the driving force received by the power receiving element 21 to the flange 24, the supporting element 25 is used for supporting the power receiving element 21, and the elastic element 26 is used for providing a resetting force for the extension of the power receiving element 21; since the rotation of the power transmission device 20 depends on the rotation of the power receiving member 21, the rotation axis L2 of the power transmission device 20 can be regarded as the rotation axis of the power receiving member 21.
When the developing cartridge D is completely assembled, the holder 22, the slider 23, the support 25, the elastic member 26, and the transmitting member 27 are all located within the flange 24, and a part of the power receiving member 21 is also located within the flange 24; preferably, the power receiving part 21 includes a power receiving claw 211 for receiving the driving force and a through hole 212, the transmission member 27 passes through the through hole 212, and a portion of the power receiving part 21 is exposed to the outside through the protective cover 12; more preferably, the power receiving claws 211 are symmetrically arranged in two.
As shown in fig. 4, the protective cover 12 includes a cover protecting body 121 and a through hole 122 provided on the cover protecting body 121, the power receiving member 21 passes through the through hole 122, and further, a restricting plate 123 is provided along the circumference of the through hole 122, and the retainer 22 is restricted by the restricting plate 123 and cannot be removed from the flange 24; further, the restricting plate 123 is provided with a first inclined surface 124 on a side facing the cartridge case 10, and the holder 22 is also provided with a second inclined surface 221 on a circumference thereof to be engaged with the first inclined surface 124.
Fig. 5A and 5B are schematic views showing a state where the power receiving member is coupled to the power output member in the developing cartridge according to the present invention; fig. 6A and 6B are schematic views showing a state where the power receiving member is just disengaged from the power output member in the developing cartridge according to the present invention.
In the present invention, by combining the first inclined surface 124 and the second inclined surface 221, when the power receiving element 21 receives an external force, the power receiving element 21 will force the retaining element 22 to slide along the inclined surface, and at the same time, the elastic element 26 is compressed, and the power receiving element 21 retracts; as shown in fig. 3, the power transmission device 20 further includes a snap 28 for transmitting force between the power receiving part 21 and the holder 22, the external force is transmitted to the holder 22 through the snap 28 when the power receiving part 21 is subjected to the external force, and likewise, the reset force is transmitted to the power receiving part 21 through the snap 28 when the holder 22 is reset by the reset force, and preferably, the snap 28 is a snap spring, and the snap spring 28 is fixedly installed on the power receiving part 21.
Similar to current power receiving part, the utility model relates to a power receiving part 21 accessible withdrawal is tried on and is combined with power take off 30, and this combination process is no longer repeated here, and what will be described specifically hereinafter is the process that power receiving part 21 and power take off 30 break away from, the utility model discloses well power transfer device 20's structural advantage just can ensure that power receiving part 21 and power take off 30 smooth break away from the combination, and the two can not take place the friction at the in-process that breaks away from the combination.
As shown in fig. 5A and 5B, when the power receiving element 21 is coupled to the power output element 30 with the rotational axes L2 and L3 collinear, the power receiving pawl 211 is coupled to the power output rod 32 with the first inclined surface 124 opposed to and in contact with the second inclined surface 221, and when the power receiving element 21 is driven by the power output element 30, the driving force output from the power output element 30 is transmitted to the flange 24 via the transmission element 27, with the holding element 22 being sandwiched between the restriction plate 123 and the slider 23; in the present embodiment, preferably, the sliding member 23 is supported in the flange 24 by an elastic member (not shown).
As shown in fig. 6A and 6B, when the developing cartridge D moves in the direction D of fig. 6A, the power output element 30 is fixedly mounted in the printer, so that the power receiving element 21 will move relative to the developing cartridge D as the developing cartridge D has a tendency to move in the direction D, and at this time, the power output element 30 will apply a pressing force to the power receiving element 21, forcing the power receiving element 21 to compress the elastic element 26 (not shown in fig. 6A) via the supporting element 25, and causing the power receiving element 21 to move in the direction approaching the developing cartridge housing 10 along the rotation axis L2; the first inclined surface 124 is out of contact with the second inclined surface 221, the holder 22 is translated on the surface of the slider 23 in a direction perpendicular to the rotation axis L2, and at the same time, the slider 23 is also moved in a direction approaching the cartridge casing 10 along the rotation axis L2, so that the power receiving member 21 is retracted by the circlip 28 until the power receiving pawl 211 is completely disengaged from the power output member 30 along the rotation axis L2, that is, when viewed in a direction perpendicular to the rotation axis L2, there is no overlap between the power receiving member 21 and the power output member 30, as shown in fig. 6B, the rotation axis L3 of the power output member 30 is not aligned with the rotation axis L2 of the power transmission device 20, and the rotation axis L3 is positioned between the inner side surfaces 211a of the two power receiving pawls 211, but the rotation axis L3 and the rotation axis L2 are parallel to each other.
As described above, during the disengagement of the power receiving element 21 from the power output element 30, the rotational axis L3 of the power output element 30 is always located between the inner side surfaces 211a of the two oppositely disposed power receiving claws 211 of the power receiving element 21 until the two are completely disengaged, that is, during the disengagement of the two, the power output element 30 does not contact the power output claw 211, and when the two are completely disengaged, the power output element 30 still does not contact the power output claw 211, and as the cartridge D continues to move in the direction indicated by D, the power receiving element 21 is separated from the power output element 30 without contact.
It should be noted that the receiving element 21 and the power output element 30 are not combined at all, which means that there is no overlap between the receiving element 21 and the power output element 30 when viewed along the direction perpendicular to the rotation axis L2, and therefore, when the power transmission device 20 of the present invention is separated from the power output element 30, the friction between the two elements can be effectively reduced, and accordingly, the wear of the two elements can be effectively suppressed.
Claims (9)
1. The power transmission device is used for being combined with and separated from an external power output element and comprises a power receiving element telescopically positioned in the power transmission device;
the power receiving element includes a plurality of power receiving claws for receiving a driving force, and the power output element has a rotational axis L3;
the characteristic is that the rotation axis L3 is always located between the inner side surfaces of the two oppositely arranged power receiving claws during the process that the power receiving element and the power output element are disengaged from each other until the power receiving element and the power output element are completely disengaged.
2. The power transmission device according to claim 1, wherein when the power receiving element and the power output element are completely disengaged, there is no overlap between the power receiving element and the power output element when viewed in a direction perpendicular to the rotational axis L3.
3. The power transmission device according to claim 1 or 2, further comprising a holder for holding the power receiving member in an untilted state, a slider for providing a sliding plane for the holder and sliding with the power receiving member as the power receiving member expands and contracts, a support for supporting the power receiving member, and a transmission member for providing a returning force for the extension of the power receiving member, the transmission member passing through the power receiving member and engageable with the flange for transmitting the driving force received by the power receiving member to the flange.
4. A developing cartridge including a developing cartridge housing, a rotary member rotatably mounted in the developing cartridge housing, a protective cover at one end of the developing cartridge housing, and a power transmission device for engaging and disengaging with a power output member and receiving a driving force output from the power output member to drive the rotary member to rotate, including a power receiving member retractable with respect to the developing cartridge housing;
the power receiving element includes a plurality of power receiving claws for coupling with a power output element having a rotation axis L3;
it is characterized in that the rotation axis L3 is always located between the inside faces of the two oppositely disposed power receiving claws during the period from the initial disengagement of the power receiving element from the power output element until the two elements are not engaged at all.
5. A cartridge according to claim 4, wherein when the power receiver and the power output element are completely disengaged, there is no overlap between the power receiver and the power output element when viewed in a direction perpendicular to the rotational axis L3.
6. A developing cartridge according to claim 4 or 5, wherein the power transmitting device further comprises a holder for holding the power receiving member in an untilted state, a slider for providing a sliding plane for the holder and sliding with the power receiving member being extended and retracted, a support for supporting the power receiving member, and an elastic member for providing a returning force for the extension of the power receiving member, the transmission member passing through the power receiving member and engageable with the flange for transmitting the driving force received by the power receiving member to the flange.
7. A developing cartridge according to claim 6, wherein the cover includes a cover body and a through hole provided in the cover body, a restricting plate is further provided along a circumference of the through hole, the power receiving member passes through the through hole, and the holding member is restricted by the restricting plate so as not to come out from the flange.
8. A cartridge according to claim 7, wherein a side of the regulating plate facing the cartridge casing is further provided with a first slope, and a circumference of the holder is also provided with a second slope cooperating with the first slope.
9. A developing cartridge according to claim 8, wherein the power transmitting device further includes a snap member for transmitting force between the power receiving member and the holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969899.6U CN209980019U (en) | 2019-06-25 | 2019-06-25 | Power transmission device and developing cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969899.6U CN209980019U (en) | 2019-06-25 | 2019-06-25 | Power transmission device and developing cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209980019U true CN209980019U (en) | 2020-01-21 |
Family
ID=69266687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920969899.6U Active CN209980019U (en) | 2019-06-25 | 2019-06-25 | Power transmission device and developing cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209980019U (en) |
-
2019
- 2019-06-25 CN CN201920969899.6U patent/CN209980019U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107918264B (en) | Control mechanism and developing box comprising same | |
| EP3367179B1 (en) | Driving assembly and developing cartridge | |
| US20180074456A1 (en) | Process cartridge and photosensitive drum driving component | |
| CN107402509B (en) | Driving component and processing box comprising same | |
| US9588478B1 (en) | Drive coupling and transmitting assembly for photosensitive drum and toner cartridges | |
| CN105573092B (en) | Processing box | |
| CN212181259U (en) | Processing box | |
| CN108153128B (en) | Power transmission device and process cartridge | |
| CN209980019U (en) | Power transmission device and developing cartridge | |
| CN107621768B (en) | Process cartridge and drive assembly | |
| CN109001966B (en) | Process cartridge | |
| CN106292236B (en) | Processing box | |
| CN108021011B (en) | Developing box, processing box and electronic imaging device | |
| CN108873659A (en) | Handle box | |
| CN208477304U (en) | Handle box | |
| CN210864326U (en) | Processing box | |
| US11573523B2 (en) | Processing cartridge | |
| CN214225685U (en) | Cartridge for electrophotographic image forming apparatus | |
| CN208421533U (en) | Handle box | |
| CN107831645B (en) | Rotational driving force receiving member, driving assembly, and cartridge | |
| CN107991853B (en) | Rotary driving force receiving head, driving force transmission assembly and processing box | |
| CN208580298U (en) | Handle box | |
| CN209231721U (en) | A kind of handle box | |
| CN106154788B (en) | Developing box | |
| CN108983577A (en) | Handle box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |