CN108490754B - Power transmission device, rotary member, and developing cartridge - Google Patents
Power transmission device, rotary member, and developing cartridge Download PDFInfo
- Publication number
- CN108490754B CN108490754B CN201810411276.7A CN201810411276A CN108490754B CN 108490754 B CN108490754 B CN 108490754B CN 201810411276 A CN201810411276 A CN 201810411276A CN 108490754 B CN108490754 B CN 108490754B
- Authority
- CN
- China
- Prior art keywords
- power transmission
- power receiving
- power
- 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
Classifications
-
- 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
-
- 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
- G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
- G03G21/1676—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the developer unit
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Electrophotography Configuration And Component (AREA)
- Gear Transmission (AREA)
Abstract
The invention relates to a power transmission device, a rotary member and a developing box with the power transmission device, wherein the power transmission device comprises a power receiving assembly and a driving gear combined with the power receiving assembly, the power receiving assembly comprises a power receiving part and a power transmission part telescopically mounted on the power receiving part, the power receiving part comprises a base part, a connecting part and a power receiving part, in the direction perpendicular to the rotation axis of the power receiving assembly, the maximum size of the connecting part is d1 when the power transmission part is in a retracted state, and the maximum size of the connecting part is d2 when the power transmission part is in a time-extended state; the driving gear comprises a cylindrical gear body, a gear cavity formed in the gear body and a plurality of power transmission parts protruding from the inner wall of the gear body to the gear cavity, and the distance between two opposite power transmission parts along the radial direction of the gear body is d 3; the sizes meet the following requirements: d1 < d3 < d 2.
Description
Technical Field
The present invention relates to the field of electrophotographic image forming, and more particularly to a developing cartridge detachably mountable in an electrophotographic image forming apparatus, a rotary member rotatably mounted in the developing cartridge, and a power transmission device for receiving a driving force for the rotary member.
Background
An electrophotographic image forming apparatus (hereinafter simply referred to as "apparatus"), such as a printer, a copier, or the like, has a developing cartridge, which is a consumable necessary therein, and receives a rotational driving force from the apparatus to drive a rotary member located in the developing cartridge to rotate, in operation.
At present, a driving force receiving member called a "universal joint" is commercially available, which is mounted at one longitudinal end of the developing cartridge housing and has a spherical shape at an end thereof close to the developing cartridge. With the spherical body, the member is in an inclined state inclined with respect to the rotational axis of the rotary before the developing cartridge is mounted to a predetermined position of the apparatus, and the member is in a vertical state in which it is coaxial or parallel with the rotational axis of the rotary in conjunction with the power output member in the apparatus when the developing cartridge is mounted to the predetermined position of the apparatus.
To prevent the driving force receiving member from falling off from the developing cartridge, a common way is: providing a projection at a position where the developing cartridge is combined with the driving force receiving member; however, just because the end of the member close to the developing cartridge is a spherical body, if the developing cartridge mounted with the driving force receiving member encounters large external impact during transportation, the driving force receiving member may fall off from the developing cartridge housing, and when the developing cartridge is used by an end user, the driving force receiving member needs to be mounted again against the resistance of the protrusion, which is poor for the end user in use experience.
Disclosure of Invention
The invention provides a power transmission device and a developing box with the same, wherein in the process of assembling and transporting the developing box, a power receiving assembly is separated from a developing box main body, and the power receiving assembly and the developing box main body are in a separated state; when the end user needs to use the developing box, the power receiving assembly is only required to be inserted into the developing box main body, and then the blocking piece on the power receiving assembly is rotated to complete the combination of the power receiving assembly and the developing box main body.
In order to achieve the purpose, the invention adopts the following technical scheme:
the power transmission device comprises a power receiving assembly and a driving gear combined with the power receiving assembly, wherein the power receiving assembly comprises a power receiving part and a power transmission part telescopically mounted on the power receiving part, the power receiving part comprises a base part, a connecting part and a power receiving part, and the connecting part connects the base part and the power receiving part; when the power transmission member is in the retracted state, the maximum dimension of the connecting portion in a direction perpendicular to the rotational axis of the power receiving assembly is d 1; the maximum dimension of the connecting portion in a direction perpendicular to the rotational axis of the power receiving assembly when the power transmission member is in the time-extended state is d 2; the driving gear comprises a cylindrical gear body, a gear cavity formed in the gear body and a plurality of power transmission parts protruding from the inner wall of the gear body to the gear cavity, and the distance between two opposite power transmission parts along the radial direction of the gear body is d 3; the sizes meet the following requirements: d1 < d3 < d 2.
The power receiving part further comprises a mounting hole and a pushing piece, the mounting hole is formed in the power receiving part, the power transmission pieces are mounted in the mounting hole, the power transmission pieces are separated from each other, and the pushing piece is located between the two power transmission pieces.
The power receiving assembly further includes a blocking member movably mounted on the power receiving member, the blocking member being movable from a blocking position blocking extension of the power transmission member to an unblocking position unblocking extension of the power transmission member.
When the power transmission member is in the retracted state, at least a portion of the power transmission member overlaps at least a portion of the blocking member as viewed in a direction perpendicular to the rotational axis of the power receiving assembly.
The blocking member is generally cylindrical and includes a cylindrical body having upper and lower openings facing each other, a cylindrical cavity between the upper and lower openings, and a guided portion provided on an inner surface of the cylindrical body, the guided portion being engaged with the power receiving member.
The barrier part also comprises an avoiding part communicated with the cylinder cavity and a barrier part arranged adjacent to the avoiding part, and when the power transmission part is in a retraction state, the power transmission part is opposite to the barrier part; when the power transmission member is in the extended state, the power transmission member is opposed to the avoidance portion.
The escape portion is formed by cutting off a part of the cylindrical body from the lower opening toward the upper opening in the circumferential direction of the stopper.
The power receiving part further comprises a first guide part arranged in the power receiving part, and a guided part combined with the first guide part is arranged on the blocking piece.
The first guide portion is a first guide groove extending in the circumferential direction of the power receiving member, and the guided portion is a guide projection provided on the blocking member.
The power receiving part further includes a second guide groove provided therein, the second guide groove communicating with the first guide groove.
The invention also provides a rotary member comprising a rotary body and a power transmission device as described above mounted at one longitudinal end of the rotary body.
The present invention also provides a developing cartridge comprising a developing cartridge housing and the rotary as described above, which is rotatably mounted in the developing cartridge housing.
The present invention also provides another developing cartridge comprising a developing cartridge main body and the power transmission device as described above, the power transmission device being located at one longitudinal end of the developing cartridge main body.
The developing cartridge main body includes a developing cartridge housing and a rotary rotatably mounted in the developing cartridge housing, and the power transmission device receives an external driving force to drive the rotary to rotate.
Drawings
Fig. 1 is a schematic view of the overall structure of a developing cartridge according to the present invention.
Fig. 2A is a schematic view of the overall structure of a rotary in the developing cartridge according to the present invention.
Fig. 2B is a schematic view of a state in which the power transmission device is separated from the rotary member in the developing cartridge according to the present invention.
Fig. 3 is an exploded view of a power receiving assembly in the developing cartridge according to the present invention.
Fig. 4A is a schematic view of the overall structure of the barrier according to the present invention.
Fig. 4B is a schematic view of the overall structure of the barrier according to the present invention viewed from another angle.
Fig. 4C is a side view of a barrier according to the present invention.
Fig. 5A is a schematic view of the entire structure of the drive gear according to the present invention.
Fig. 5B is a sectional view of the drive gear according to the present invention taken along the direction of the rotation axis thereof.
Fig. 6A is a schematic view of the overall structure of the power receiving module according to the present invention before installation.
Fig. 6B is a cross-sectional view of the power receiving assembly of the present invention taken along a line passing through the rotational axis thereof.
Fig. 6C is a sectional view of the power receiving assembly relating to the present invention, taken along a direction passing through the rotational axis thereof and perpendicular to the direction of the section in fig. 6B.
Fig. 6D is a schematic view of the overall structure of the power receiving module according to the present invention after installation.
Fig. 7A is an exploded schematic view of the power transmission device according to the present invention.
Fig. 7B is a schematic diagram showing the assembled state of the power transmission device according to the present invention.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the drawings, and is defined as follows, defining a longitudinal direction as a longitudinal direction X, a mounting direction as a lateral direction Y, and a direction perpendicular to the longitudinal direction X and the lateral direction Y as a vertical direction Z.
[ integral Structure of developing Cartridge ]
Fig. 1 is a schematic view of the overall structure of a developing cartridge according to the present invention. As shown in the drawing, the developing cartridge C includes a developing cartridge main body 10 and a power transmission device 2 at one longitudinal end of the developing cartridge main body 10, the developing cartridge main body 10 includes a developing cartridge housing 1 and a rotary 11 rotatably mounted in the developing cartridge housing 1, the power transmission device 2 receives an external driving force to drive the rotary 11 to rotate, at this time, the rotary 11 together with the power transmission device 2 serves as a part of a rotary so that the rotary is rotatably mounted in the developing cartridge housing 1; generally, the power transmission device 2 is installed at one longitudinal end of the rotating body 11, and at this time, the power transmission device 2 directly transmits the received driving force to the rotating body 11; of course, the power transmission device 2 may also be mounted at one longitudinal end of the developing cartridge housing 1, and when the power transmission device 2 receives an external driving force, the driving force is transmitted to the rotary 11 through a gear.
Fig. 2A is a schematic view of the overall structure of a rotary in the developing cartridge according to the present invention; fig. 2B is a schematic view of a state in which the power transmission device is separated from the rotary member in the developing cartridge according to the present invention.
As shown in fig. 2A and 2B, the present invention is explained by taking an example in which the power transmission device 2 is mounted on one longitudinal end of the rotary body 11, and the rotary body 11 rotates about the rotation axis L11. The power transmission device 2 includes a power receiving module 21 and a driving gear 22 combined with the power receiving module 21, as shown in the figure, the power receiving module 21 rotates around a rotation axis L21 and is detachably installed in the driving gear 22, the driving gear 22 is fixedly installed at one longitudinal end of the rotating body 11, when the power receiving module 21 is installed to the driving gear 22, the rotation axis L21 may also not be collinear with the rotation axis L11, but it is assumed that the rotation axis L21 is present at an angle to the rotation axis L11; preferably, the axis of rotation L21 is collinear with the axis of rotation L11.
As further shown in fig. 2B, the power receiving assembly 21 includes a power receiving part 211, a blocking member 212 movably installed on the power receiving part 211, the power receiving part 211 for receiving a driving force from the outside, and a power transmitting part 211d telescopically installed on the power receiving part 211, the blocking member 212 for blocking the power transmitting part 211d from protruding, the blocking member 212 being rotatably installed on the power receiving part 211. When the power receiving assembly 21 is not mounted to the drive gear 22, the power transmission member 211d is in a retracted state (first position) blocked by the blocking member 212; when the power receiving assembly 21 is mounted to the drive gear 22, the power transmission member 211d is in an extended state (second position) not blocked by the stopper 212, at which time, the power transmission member 211d is engaged with the drive gear 22 for transmitting the driving force received by the power receiving member 211 to the drive gear 22, and then transmitting the driving force to the rotary body 11 through the drive gear 22, and further driving the rotary body 11 to rotate, that is, the stopper 212 is movable/rotatable from a blocking position blocking the extension of the power transmission member 211d to an unblocking position not blocking the extension of the power transmission member 211 d; when the power transmission member 211d is blocked by the blocking member 212, the power transmission member 211d is retracted, and when the power transmission member 211d is not blocked by the blocking member 212, the power transmission member 211d is extended.
[ Power receiving Assembly ]
Fig. 3 is an exploded schematic view of a power receiving assembly in the developing cartridge according to the present invention; FIG. 4A is a schematic view of the overall structure of a barrier according to the present invention; FIG. 4B is a schematic view of the overall structure of the barrier according to the present invention viewed from another angle; fig. 4C is a side view of a barrier according to the present invention.
[ Power receiving Member ]
As shown in fig. 3, the power receiving part 211 includes a base portion 211a, a connection portion 211b and a power receiving portion 211c, the connection portion 211b connects the base portion 211a and the power receiving portion 211c, the connection portion 211b has an outer surface 211g, the base portion 211a has an outer surface 211m, the power receiving part 211 is supported by the driving gear 22 through the outer surface 211m, and the outer surface 211g is integrated with the outer surface 211m in the direction of the rotation axis L21, so that the base portion 211a and the connection portion 211b have the same maximum radius.
The power transmission member 211d is telescopically mounted on the power receiving member 211, as shown in the figure, the power receiving member 211 further comprises a mounting hole 211e and a pushing member 211f arranged therein, the power transmission member 211d is mounted in the mounting hole 211e, in the embodiment of the present invention, the power receiving member 211 comprises two separated power transmission members 211d, at least one of the power transmission members 211d is telescopic, preferably, the pushing member 211f is an elastic member located between the two power transmission members 211d, the elastic member 211f provides a force for extending the power transmission member 211d, and when the power transmission member 211d is in a retracted state blocked by the blocking member 212, the elastic member 211f is compressed; when the blocking member 212 no longer blocks the power transmission members 211d, at least one power transmission member 211d is pushed out by the elastic force of the elastic member 211 f; more preferably, the elastic member 211f is a spring, and both ends of the spring 211f are respectively abutted against the two power transmission members 211 d; alternatively, the urging member 211f may be a pair of magnets disposed between the two power transmission members 211d, and the force transmission members 211d are urged by the force generated by the repulsion of like poles of the magnets, and further, the magnets may be directly mounted on the opposite ends of the two power transmission members 211d, so that the magnets are integrally formed with the power transmission members.
As described above, the blocking piece 212 is rotatably mounted on the power receiving part 211, and thus, the power receiving part 211 further includes the first guide portion 211i provided therein, and the blocked piece 212 is provided with the guided portion 212d for being combined with the first guide portion 211 i; the first guide portion 211i is a first guide groove or a guide protrusion provided on the power receiving part 211, and the guided portion 212d provided on the blocking member 212 is a guide protrusion or a first guide groove, and preferably, the first guide portion 211i is a first guide groove extending in a circumferential direction of the power receiving part 211, and correspondingly, the guided portion 212d is a guide protrusion provided on the blocking member 212. More preferably, a first guide groove 211i is provided on the connection portion 211b, and when the blocking piece 212 is mounted to the power receiving part 211, the guide protrusion 212d is guided by the first guide groove 211i so that the blocking piece 212 can rotate in the circumferential direction of the power receiving part 211 along the first guide groove 211 i; as shown in fig. 3, the first guide groove 211i is recessed from the outer surface 211g of the connection portion 211b to a direction close to the rotation axis L21, and thus, the first guide groove 211i serves as an example of a holding portion that holds the blocking piece 212, holding the blocking piece 212 on the power receiving part 211, and at this time, the guide protrusion 212d is a held portion.
Further, the power receiving part 211 further includes a second guide portion 211j provided therein, the second guide portion 211j guiding the blocking piece 212 in a process that the blocking piece 212 is mounted to the power receiving part 211; preferably, when the guided portion 212d is a guide protrusion, the second guide portion 211j is a second guide groove provided on the power receiving part 211; the second guide groove 211j extends from the base portion 211a to the connecting portion 211b in the direction of the rotation axis L21 and communicates with the first guide portion 211i, and the second guide groove 211j may extend linearly or in a curved/spiral manner, and the second guide groove 211j preferably extends linearly in view of reducing the difficulty of the production process of the power receiving part 21.
In order not to interfere with the support of the power receiving part 211 by the drive gear 22, the stopper 212 does not cover the outer surface 211m of the base part 211a in the direction of the rotation axis L21, as shown in fig. 3, the outer surface 211g of the connecting part 211b is not integrated with the outer surface 211m of the base part 211a in the direction of the rotation axis L21, a step surface 211k is formed therebetween, and the outer surface 211g of the connecting part 211b is closer to the rotation axis L21 than the outer surface 211m of the base part 211 a; the first and second guide grooves 211i and 211k are closer to the rotation axis L21 than the outer surface 211g of the connection portion 211b, and thus, the stopper 212 is rotatably installed between the base portion 211a and the power receiving portion 211c along the rotation axis L21, or the stopper 212 is rotatably installed between the step surface 211m and the power receiving portion 211c along the rotation axis L21. Further, the power receiving part 211 is further provided with a stopper protrusion 211h for preventing the stopper 212 from coming off, and as shown in the drawing, the stopper protrusion 211h is disposed adjacent to the first guide groove 211i along the rotation axis L21, and the stopper protrusion 211h is disposed closer to the power receiving part 211c than the first guide groove 211i, so that, in the embodiment of the present invention, the accurate position of the stopper 212 is located between the stopper protrusion 211h and the step surface 211 k.
In the embodiment of the present invention, the power transmission member 211d protrudes from the mounting hole 211e under the control of the stopper 212, and thus, when the power transmission member 211d is in the retracted state, at least a portion of one of the power transmission member 211d and the mounting hole 211e overlaps at least a portion of the stopper 212 as viewed in a direction perpendicular to the rotation axis L21. Specifically, in the direction of the rotation axis L21, at least a part of the mounting hole 211e is located in the connecting portion 211b, as shown in fig. 3, a part of the mounting hole 211e is located in the connecting portion 211b, and another part is located in the base portion 211a, so that the end user can observe the mounting hole 211e from the outside to determine the operation to be taken next; when the power transmission member 211d is mounted to the mounting hole 211e, at least a part of the power transmission member 211d is located in the connecting portion 211b in the direction of the rotation axis L21.
[ Barrier ]
As shown in fig. 4A and 4B, the stopper 212 is cylindrical as a whole, and includes a cylindrical body 212g having an upper opening 212a and a lower opening 212B opposed to each other, a cylindrical cavity 212c located between the upper and lower openings, a guided portion 212d provided on an inner surface of the cylindrical body 212g, an escape portion 212e communicating with the cylindrical cavity 212c, and a stopper portion 212f provided adjacent to the escape portion 212 e.
When the blocking piece 212 is mounted to the power receiving part 211, at least a portion of the connecting portion 211b is received by the cylindrical cavity 212c, and the guided portion 212d is guided by the first guide portion 211i provided on the power receiving part 211, as described above, the first guide portion 211i is preferably a first guide groove provided on the connecting portion 211b, and thus, the guided portion 212d is a guide protrusion provided on the blocking piece 212; preferably, the avoiding portion 212e is disposed adjacent to the lower opening 212b, and the avoiding portion 212e and the blocking portion 212f are both disposed oppositely two or another even number along the circumferential direction of the blocking member 212, and when the power transmission member 211d is in the retracted state, the power transmission member 211d is opposite to the blocking portion 212 f; when the power transmission member 211d is in the extended state, the power transmission member 211d faces the escape portion 212 e. As shown in fig. 4A and 4B, the formation of the escape portion 212e can be described as: in the circumferential direction of the stopper 212, a part of the cylindrical body 212g is cut from the lower opening 212b toward the upper opening 212 a.
In order to achieve the above-described overlapping of at least a portion of one of the power transmission piece 211d and the mounting hole 211e with at least a portion of the blocking piece 212, the dimensional relationship of the blocking piece 212 and the power receiving piece 211 at the corresponding portions is as follows.
As shown in fig. 3, along the rotation axis L21, the distance between the restriction portion 211h and the step surface 211k is k4, and the longest distance between the restriction portion 211h and the end of the base portion 211a is k 3; as shown in fig. 4C, the distance between the upper opening and the lower opening of the cylindrical body 212g of the blocking member 212 is k1, and the distance from the upper opening 212a to the end of the escape portion 212e away from the lower opening 212b is k2, which satisfies: k3 & gtk 4 & gtk 1 & gtk 2.
As another embodiment of the stopper 212, the escape portion 212e is eliminated, and the entire cylindrical body 212g serves as the stopper portion 212f, at this time, the stopper 212 moves from the blocking position where the power transmission member 211d is blocked to the unblocking position where the power transmission member 211d is not blocked from extending, along the rotation axis L21, under the guidance of the first guide portion 211 i; the first guide portion 211i may be, for example, a spiral groove provided on the outer surface 211g of the connecting portion 211b, the spiral groove extending in the circumferential direction of the power receiving part 211, and when the guide projection as a guided portion moves along the spiral groove, the stopper 212 moves spirally in a direction approaching the power receiving part 211c along the rotation axis L21 as a whole until the stopper 212 no longer blocks the protrusion of the power transmission part 211 d.
[ drive gear ]
Fig. 5A is a schematic view of the overall structure of a drive gear according to the present invention; fig. 5B is a sectional view of the drive gear according to the present invention taken along the direction of the rotation axis thereof.
As shown in the figure, the drive gear 22 includes a cylindrical gear body 22a, an opening 22b at one end of the gear body, a bottom wall 22e opposite to the opening 22b, a gear cavity 22c formed in the gear body 22a, teeth 22d formed on an outer circumferential surface of the gear body 22a, a support portion 22f formed on the bottom wall 22e, and a plurality of power transmission portions 22i protruding from an inner wall of the gear body 22a toward the gear cavity 22c, an accommodation cavity 22g for accommodating a power transmission member 211d is formed between two adjacent power transmission portions 22i, a surface of the power transmission portion 22i adjacent to the accommodation cavity 22g in a rotation direction of the drive gear 22 is formed as a power transmission surface 22j, and the power transmission member 211d abuts against the power transmission surface 22j for transmitting the drive force received by the power reception portion 211c to the drive gear 22.
In order to prevent the power transmission member 211d from being separated from the housing cavity 22g when the power transmission member 211d abuts against the power transmission surface 22j, the drive gear 22 further includes a plurality of baffle plates 22h disposed adjacent to the power transmission portion 22i, and the baffle plates 22h may be formed integrally with the gear body 22a or may be separately provided and coupled to the gear body 22 a. As shown in the figure, two or another even number of the baffle plates 22h and the power transmission portions 22i are provided opposite to each other in the circumferential direction of the gear body 22a, and the distance between the two opposite power transmission portions 22i in the radial direction of the gear body 22a is d 3.
[ Assembly of Power Transmission device ]
FIG. 6A is a schematic view of the overall structure of a power receiving assembly of the present invention prior to installation; FIG. 6B is a cross-sectional view of the power receiving assembly of the present invention taken along a line passing through the axis of rotation thereof; FIG. 6C is a cross-sectional view of the power receiving assembly of the present invention taken along a direction through its axis of rotation and perpendicular to the direction of the cut in FIG. 6B; FIG. 6D is a schematic view of the overall configuration of the power receiving assembly of the present invention after installation; fig. 7A is an exploded schematic view of a power transmission device relating to the invention; fig. 7B is a schematic diagram showing the assembled state of the power transmission device according to the present invention.
As shown in fig. 6A, when the power transmission member 211d is in the retracted state, the maximum dimension of the connecting portion 211b in the direction perpendicular to the rotation axis L21 is d1, satisfying d1 < d3, and thus the power receiving module 21 can be inserted into the gear chamber 22c in the direction indicated by the arrow d in fig. 7A. As further shown in fig. 6A, before the power receiving assembly 21 is not mounted to the drive gear 22, or when the power transmission member 211d is in the retracted state, at least a part of the power transmission member 211d is blocked by the blocking portion 212f, and thus the power transmission member 211d cannot be extended; as shown in fig. 6B and 6C, the stopper 212 is rotatably supported between the stopper protrusion 211h and the step surface 211k in the direction of the rotation axis L21, and at least a part of the power transmission member 211 overlaps the stopper 212.
When the power receiving assembly 21 is inserted into the gear cavity 22c of the driving gear, the end user rotates the stopper 22 until the power transmission member 211D is completely opposed to the escape portion 212e, at which time the power transmission member 211D is protruded by the urging action of the urging member 211f, as shown in fig. 6D, and when the power transmission member 211D is in the time-protruded state, the maximum size of the connecting portion 211b is D2 in the direction perpendicular to the rotation axis L21, satisfying D3 < D2.
As described above, since the first guide groove 211i is provided in the circumferential direction of the power receiving part 211, the end user can rotate the blocking piece 22 in the rotation direction of the power receiving part 211 regardless of the rotation direction when rotating the blocking piece 22, and can also rotate the blocking piece 22 in the direction opposite to the rotation direction of the power receiving part 211, which is simple and easy for the end user.
According to the power transmission device 2, the present invention also provides an assembling method of the power transmission device 2, which specifically comprises:
step one, retracting the power transmission piece 211d, rotating the blocking piece 212, and blocking the power transmission piece 211d from extending by using the blocking piece 212;
step two, inserting the power receiving assembly 21 including the power transmission member 211d in the retracted state into the driving gear;
and step three, moving the blocking piece 212 until the power transmission piece 211d is not blocked by the blocking piece 212 any more, and enabling the power transmission piece 211d to extend out under the urging action of the urging piece 211f and to be combined with the driving gear 22.
The first step may be performed by the manufacturer of the developing cartridge C, and the end user may perform the second and third steps to complete the assembly of the power transmission device 2.
According to the assembling method of the above power transmission device 2, there can be further extended a method of using a developing cartridge detachably mountable to an image forming apparatus having a power output member, the power receiving assembly 21 and the developing cartridge main body 10 being separated from each other before the developing cartridge is mounted to the image forming apparatus, and in the developing cartridge main body 10, the driving gear 22 being fixedly mounted in advance, specifically:
step one, before the developing cartridge is mounted to the image forming apparatus, the power receiving assembly 21 including the power transmission member 211d in the retracted state is inserted into the driving gear;
and step two, moving the blocking piece 212 until the power transmission piece 211d is not blocked by the blocking piece 212 any more, and the power transmission piece 211d extends out and is combined with the driving gear 22.
And step three, mounting the developing box to the imaging device, and combining the power receiving part with the power output part.
Generally, the driving gear 22 is fixedly mounted in advance in the developing cartridge main body 10 or at one longitudinal end of the rotary member 11 rotatably mounted in the developing cartridge housing 1, and during transportation of the developing cartridge C, the driving gear 22 does not fall off, so that a manufacturer only needs to package and transport the power receiving assembly 21 with the power transmission member 211d in the retracted state together with the developing cartridge main body 10, and at this time, the power receiving assembly 21 and the developing cartridge main body 10 are separated from each other, when an end user needs to use the developing cartridge C, only needs to insert the power receiving assembly 21 into the developing cartridge main body 10, and then the blocking member 212 on the rotary power receiving assembly 21 can complete the combination of the power receiving assembly 21 and the developing cartridge main body 10.
Claims (14)
1. The power transmission device is used for being installed in the developing box and comprises a power receiving component and a driving gear combined with the power receiving component,
the power receiving assembly comprises a power receiving part and a power transmission part telescopically mounted on the power receiving part,
the power receiving part comprises a base part, a connecting part and a power receiving part, wherein the connecting part connects the base part and the power receiving part;
when the power transmission member is in the retracted state, the maximum dimension of the connecting portion in the direction perpendicular to the rotational axis of the power receiving assembly is d1, at which time the power receiving assembly is not mounted to the drive gear so that both are in the split state; when the power transmission member is in the time-extended state, the power receiving assembly is mounted to the drive gear, and the two are coupled to each other, and the maximum dimension of the connecting portion in a direction perpendicular to the rotational axis of the power receiving assembly is d 2;
the driving gear comprises a cylindrical gear body, a gear cavity formed in the gear body and a plurality of power transmission parts protruding from the inner wall of the gear body to the gear cavity, and the distance between two opposite power transmission parts along the radial direction of the gear body is d 3;
characterized in that the dimensions satisfy: d1 < d3 < d 2.
2. The power transmission device according to claim 1, wherein the power receiving member further includes a mounting hole and a pushing member provided therein, the power transmitting member being mounted in the mounting hole, the power transmitting members being two separate members, the pushing member being located between the two power transmitting members.
3. The power transfer device of claim 1, wherein the power receiving assembly further comprises a blocking member movably mounted on the power receiving member, the blocking member being movable from a blocking position blocking extension of the power transmission member to an unblocking position unblocking extension of the power transmission member.
4. The power transmission device of claim 3, wherein at least a portion of the power transmission member overlaps at least a portion of the blocking member as viewed in a direction perpendicular to the rotational axis of the power receiving assembly when the power transmission member is in the retracted state.
5. The power transmission device according to claim 4, wherein the blocking member is of a cylindrical tube shape as a whole, and includes a cylindrical body having opposed upper and lower openings, a cylindrical cavity between the upper and lower openings, and a guided portion provided on an inner surface of the cylindrical body, the guided portion being engaged with the power receiving member.
6. The power transmission device according to claim 5, wherein the blocking member further includes an escape portion communicating with the cylinder chamber and a blocking portion provided adjacent to the escape portion, the power transmission member being opposed to the blocking portion when the power transmission member is in the retracted state; when the power transmission member is in the extended state, the power transmission member is opposed to the avoidance portion.
7. The power transmission device according to claim 6, wherein the escape portion is formed by cutting off a part of the cylindrical body from the lower opening toward the upper opening in a circumferential direction of the stopper.
8. The power transmission device according to claim 5, 6 or 7, wherein the power receiving member further includes a first guide portion provided therein, and the blocking member is provided with a guided portion that is engaged with the first guide portion.
9. The power transmission device according to claim 8, wherein the first guide portion is a first guide groove extending in a circumferential direction of the power receiving member, and the guided portion is a guide projection provided on the blocking member.
10. The power transmission device according to claim 9, wherein the power receiving member further includes a second guide groove provided therein, the second guide groove communicating with the first guide groove.
11. A rotary member comprising a rotary body and a power transmission device as claimed in any one of claims 1 to 10 mounted at one longitudinal end of the rotary body.
12. A developing cartridge comprising a developing cartridge housing and a rotary according to claim 11, the rotary being rotatably mounted in the developing cartridge housing.
13. A developing cartridge, comprising a developing cartridge main body and the power transmission device according to any one of claims 1 to 10, the power transmission device being located at one longitudinal end of the developing cartridge main body.
14. A developing cartridge according to claim 13, wherein the developing cartridge main body includes a developing cartridge casing and a rotary rotatably mounted in the developing cartridge casing, the power transmitting device receiving the external driving force to drive the rotary to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810411276.7A CN108490754B (en) | 2018-05-02 | 2018-05-02 | Power transmission device, rotary member, and developing cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810411276.7A CN108490754B (en) | 2018-05-02 | 2018-05-02 | Power transmission device, rotary member, and developing cartridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108490754A CN108490754A (en) | 2018-09-04 |
| CN108490754B true CN108490754B (en) | 2021-07-13 |
Family
ID=63353570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810411276.7A Active CN108490754B (en) | 2018-05-02 | 2018-05-02 | Power transmission device, rotary member, and developing cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108490754B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182270A (en) * | 2013-03-01 | 2013-07-03 | 湖州杭华油墨科技有限公司 | Drive shaft regulating device for mixing head |
| CN203638026U (en) * | 2014-01-14 | 2014-06-11 | 龚丹 | Scooter handrail height adjusting device |
| CN204964996U (en) * | 2015-07-15 | 2016-01-13 | 江西镭博钛电子科技有限公司 | Processing case |
| CN205750289U (en) * | 2016-05-20 | 2016-11-30 | 珠海艾派克科技股份有限公司 | A kind of handle box driving assembly and comprising this driving assembly |
| CN205899249U (en) * | 2016-05-25 | 2017-01-18 | 珠海艾派克科技股份有限公司 | Handle drive assembly of box and contain this drive assembly's processing box |
| CN207115030U (en) * | 2017-08-09 | 2018-03-16 | 纳思达股份有限公司 | A kind of drive component and the handle box comprising the drive component |
| CN208126111U (en) * | 2018-05-02 | 2018-11-20 | 中山诚威科技有限公司 | Power transmission, revolving part and Delevoping cartridge |
-
2018
- 2018-05-02 CN CN201810411276.7A patent/CN108490754B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182270A (en) * | 2013-03-01 | 2013-07-03 | 湖州杭华油墨科技有限公司 | Drive shaft regulating device for mixing head |
| CN203638026U (en) * | 2014-01-14 | 2014-06-11 | 龚丹 | Scooter handrail height adjusting device |
| CN204964996U (en) * | 2015-07-15 | 2016-01-13 | 江西镭博钛电子科技有限公司 | Processing case |
| CN205750289U (en) * | 2016-05-20 | 2016-11-30 | 珠海艾派克科技股份有限公司 | A kind of handle box driving assembly and comprising this driving assembly |
| CN205899249U (en) * | 2016-05-25 | 2017-01-18 | 珠海艾派克科技股份有限公司 | Handle drive assembly of box and contain this drive assembly's processing box |
| CN207115030U (en) * | 2017-08-09 | 2018-03-16 | 纳思达股份有限公司 | A kind of drive component and the handle box comprising the drive component |
| CN208126111U (en) * | 2018-05-02 | 2018-11-20 | 中山诚威科技有限公司 | Power transmission, revolving part and Delevoping cartridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108490754A (en) | 2018-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111505924A (en) | Action mechanism, driving assembly and developing box | |
| JP5067156B2 (en) | Image forming apparatus | |
| WO2017144022A1 (en) | Developing cartridge and transmission device in developing cartridge | |
| EP2711782B1 (en) | Image forming apparatus, toner case and drive transmission mechanism | |
| EP3477373B1 (en) | Optical diaphragm, lens barrel, and imaging device or projection device | |
| CN101509995B (en) | Light shieldling structure of an optical device | |
| CN108490754B (en) | Power transmission device, rotary member, and developing cartridge | |
| CN106610575B (en) | Power coupling device and processing box | |
| CN108153128B (en) | Power transmission device and process cartridge | |
| CN108710276B (en) | Power receiving assembly, power transmission device, rotary member and developing cartridge | |
| CN104808458A (en) | Image forming apparatus | |
| CN107561890B (en) | A kind of Delevoping cartridge | |
| CN107632502B (en) | Developing box | |
| JP6387844B2 (en) | Developer cartridge | |
| CN208367446U (en) | Power reception part, power reception component, power transmission and Delevoping cartridge | |
| CN216792683U (en) | Developing box and imaging device | |
| CN208126111U (en) | Power transmission, revolving part and Delevoping cartridge | |
| CN108762030B (en) | The application method of Delevoping cartridge and Delevoping cartridge | |
| JP2011039561A (en) | Process cartridge and image forming apparatus | |
| JP5201285B2 (en) | Process cartridge | |
| CN109031906B (en) | Developing box | |
| EP3709097B1 (en) | Drive force-receiving component, and toner cartridge | |
| CN114137807A (en) | Developing box | |
| CN218037685U (en) | Driving force receiving member and developing cartridge | |
| US9851687B2 (en) | Toner cartridge for electronic image forming apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |