WO2017101087A1

WO2017101087A1 - Power receiving unit, processing box and image formation device

Info

Publication number: WO2017101087A1
Application number: PCT/CN2015/097775
Authority: WO
Inventors: 刘金莲; 曹辉; 马海龙; 杨妙玲; 熊志强
Original assignee: 珠海艾派克科技股份有限公司
Priority date: 2015-12-17
Filing date: 2015-12-17
Publication date: 2017-06-22

Abstract

Disclosed is a power receiving unit used in a processing box (200) detachably mounted in an image formation device, and comprising a power receiving part (210). The power receiving part (210) comprises a main body portion (210a) and a power receiving portion (220), the main body portion (210a) is provided with a revolution axis, and the power receiving portion (220) is connected to the main body portion (210a). The power receiving unit also comprises a control mechanism (110) which controls the sliding movement of the main body portion (210a) along the revolution axis thereof and enables the power receiving portion (220) to move relative to the main body portion (210a). The technical solution described above aims at solving the problem of structural limitation inside the image formation device when the processing box (200) is mounted, so that the processing box (200) can still be mounted smoothly, and the power receiving part (210) can be smoothly engaged with a driving part (900) in the image formation device for transmitting power.

Description

Power receiving unit, process cartridge and image forming apparatus

Technical field

The present invention relates to a power receiving unit for use in a process cartridge detachably mounted in an image forming apparatus, and more particularly to a process cartridge including the power receiving unit and an image forming apparatus including the same.

Background technique

Electronic imaging devices include copiers, laser printers, and the like. An electronic imaging device typically includes a body and a process cartridge that is detachably mounted into the body.

The process cartridge includes a housing, and a developer, a powder feeding unit, a developing unit, a photosensitive unit, a cleaning unit, a power receiving unit, and the like disposed in the housing. When the process cartridge is mounted in the main body, the driving member provided in the main body is engaged with the power receiving unit of the process cartridge, thereby transmitting the rotational force into the process cartridge, causing the developing unit, the photosensitive unit, and the like to rotate to perform the developing operation.

The electronic imaging device adopts a structure in which the process cartridge and the main body are detachable, and when the developer in the process cartridge is used up, the user can conveniently replace the process cartridge or perform maintenance on the device without relying on professional service personnel to improve. The user's operability for maintenance of the electronic imaging device.

As shown in FIG. 1, the direction in which the process cartridge 200 is mounted in the main body 100 (X direction) is generally perpendicular to the longitudinal direction of the process cartridge 200, and the power receiving unit on the process cartridge that is engaged with the driving member in the main body 100 is disposed at One end of the process cartridge along the length. As for the technical solution mentioned in Chinese Patent No. 201010585490.8, in order to facilitate the engagement of the power receiving unit of the process cartridge with the driving member of the main body, the driving member or the power receiving unit is usually provided in a telescopic structure. When the process cartridge is mounted in the main body, the drive member is extended to engage with the power receiving unit, or the power receiving unit is extended to engage with the drive member, thereby achieving the purpose of transmitting the rotational force from the main body into the process cartridge.

However, in some image forming apparatuses, the space inside the main body is limited so that the distance at which the power receiving unit can expand and contract is small, or some components inside the main body block the expansion and contraction of the power receiving unit, resulting in the power of the process cartridge after being mounted to the main body. The receiving unit cannot engage with the drive unit.

Summary of the invention

The present invention provides a power receiving unit to solve the technical problem that the conventional power receiving unit cannot be engaged with the driving member due to the small distance that can be telescoped.

In order to solve the above technical problems, the present invention adopts the following technical solutions:

A power receiving unit for use in a process cartridge detachably mounted in an image forming apparatus, comprising a power receiving member including a body portion and a power receiving portion, the body portion having a rotation axis, The power receiving portion is coupled to the main body portion, wherein the power receiving unit further includes a control mechanism, the control mechanism controls the main body portion to slide along a direction of its rotation axis, and the power is The receiving unit moves with respect to the main body portion.

The power receiving portion is disposed at one end of the main body portion, and the power receiving unit further includes an intermediate connecting member, and the power receiving portion is coupled to the main body portion through an intermediate connecting member.

The main body portion is provided with a fourth hole in a manner perpendicular to the rotation axis thereof, the intermediate connecting member is a first connecting member, and the power receiving portion is provided with a third hole, and the power receiving portion passes The first connector is hinged to the body portion to the second hinge point through the fourth and third holes.

The intermediate connecting member includes a first swinging member and a second swinging member, the power receiving portion is hinged with the first swinging member, the first swinging member is hinged with the second swinging member, and the second The swinging member is hinged to the body portion.

The end of the main body portion is disposed with a first sliding slot in the axial direction, and the power receiving portion is disposed in the first sliding slot.

The end of the main body portion is provided with a guide rail, and the power receiving portion is provided with a second sliding slot. The guiding rail cooperates with the second sliding slot, and the power receiving portion can slide along the guide rail.

The end of the main body portion is further provided with a third sliding slot, and further includes a fifth elastic member disposed in the third sliding slot.

The power receiving portion is further provided with a seventh hole, and further includes a fifth connecting member passing through the seventh hole, and connected to the third sliding slot through the fifth connecting member, the fifth The elastic end abuts against the inner surface of the third sliding groove along one end in the axial direction of the power receiving member, and the other end abuts against the fifth connecting member.

A boss is disposed on an outer circumference of the main body portion, and a portion of the control mechanism abuts the boss.

The control mechanism is provided with an inclined surface that abuts against the boss, and controls the boss to slide in the direction of the rotation axis of the power receiving member by the inclined surface.

A hub having a swivel axis is also included, and the power receiving member is disposed in the hub along the hub axis direction.

The hub is provided with an extension portion in the axial direction thereof, and the extension portion is fixedly disposed on the hub.

The projecting portions are a pair, and a gap is disposed between the pair of projecting portions, and the gap penetrates the hub in a direction of the axis of rotation of the hub.

The power receiving member is disposed in the gap along a rotation axis of the hub.

a first hole is disposed on an end of the protruding portion in a direction perpendicular to the axis of rotation of the hub, the power receiving portion is provided with a second hole, and the power receiving portion passes through a second connecting member The protrusion is hinged to the first hinge point through the first hole and the second hole.

A third oscillating member is further included, one end of the third oscillating member being hinged to one end of the first oscillating member and the second oscillating member, and the other end being hinged to the first hole on the protruding portion.

The power receiving member is oscillated in a plane in which the rotation axis is located around the first hinge point while the power receiving member slides in the direction of the rotation axis of the power receiving member under the control of the control mechanism.

The control mechanism controls the power receiving portion to slide in the axial direction while the power receiving portion slides in the axial direction.

The main body portion is provided with a transmission portion in a radial direction, and a force receiving portion is provided in the inner circumferential direction of the hub, and the transmission portion meshes with the force receiving portion to transmit power.

The body portion further has a limiting portion in a radial direction thereof for abutting a surface of the hub perpendicular to the rotation axis to limit the power receiving member in the direction of the hub axis Activity distance.

A second elastic member is further disposed on the body portion along the axial direction and disposed between the limiting portion and the lower bottom surface of the hub.

The process cartridge includes a power receiving unit of any of the foregoing.

The process cartridge includes a housing, the power receiving unit is disposed along a longitudinal direction of the process cartridge, and at least a portion of the control mechanism is disposed on the housing.

The projection of the control mechanism and the hub in the direction of the axis of rotation of the hub at least partially overlaps as viewed in the longitudinal direction of the process cartridge.

The image forming apparatus includes the process cartridge of any of the foregoing.

An image forming apparatus is further provided with a driving member, and the driving member is provided with a protruding portion that meshes with the power receiving portion to transmit power.

The driving member abuts the first swinging member and the second swinging member during the axial sliding of the power receiving member, and forces the first swinging member and the second swinging member to move.

According to the technical solution of the present invention, since the power receiving unit further includes a control mechanism, the main body portion is controlled to slide in the direction of the rotation axis thereof, and the power receiving portion is moved relative to the main body portion. It is possible to solve the problem that the process cartridge can be smoothly mounted when the process cartridge is limited by the structure of the image forming apparatus, and the power receiving member can smoothly mesh with the drive member in the image forming device to transmit power.

DRAWINGS

1 is a schematic diagram of an image forming apparatus involved in the prior art;

2 is a schematic structural view of a power receiving unit according to Embodiment 1;

3 is a schematic structural view of a power receiving portion according to Embodiment 1;

4a and 4b are schematic structural views of a power receiving component according to Embodiment 1;

5a, 5b are schematic structural views of a transmission member according to Embodiment 1;

6 is a schematic structural view of a power receiving unit according to Embodiment 1;

7a and 7b are schematic diagrams showing the meshing process of the power receiving unit and the driving component according to the first embodiment;

8a and 8b are schematic structural views of a power receiving unit according to Embodiment 2;

9a and 9b are schematic structural views of a power receiving unit according to Embodiment 2;

10a and FIG. 10b are schematic diagrams showing the meshing process of the power receiving unit and the driving component according to the second embodiment;

Figure 11 is a schematic view showing the meshing process of the power receiving unit and the driving component according to the second embodiment;

Figure 12 is a plan view showing the power receiving member according to the second embodiment;

13 is a schematic structural view of a power receiving unit according to Embodiment 3;

14 is a schematic structural view of a power receiving component according to Embodiment 3;

Figure 15 is a schematic view showing the structure of a main body portion involved in the third embodiment;

16 is a schematic structural view of a power receiving unit according to Embodiment 3;

17 is a schematic structural view of a first swinging member according to Embodiment 3;

Figure 18 is a schematic structural view of a second swinging member according to Embodiment 3;

19a and 19b are schematic structural views of a power receiving component according to Embodiment 3;

20 is a schematic structural view of a transmission member according to Embodiment 3;

21a and 21b are schematic diagrams showing the meshing process of the power receiving unit and the driving component according to the third embodiment;

Figure 22 is a schematic structural view of a power receiving unit according to Embodiment 4;

Figure 23 is a schematic structural view of a transmission member according to Embodiment 4;

24 is a schematic structural view of a power receiving component according to Embodiment 4;

25a and 25b are schematic diagrams showing the meshing process of the power receiving unit and the driving component according to the fourth embodiment;

Fig. 26 is a schematic view showing the telescopic control mechanism of the power receiving member in the prior art.

detailed description

Embodiment 1

As shown in FIG. 2 to FIG. 5 , the power receiving unit according to the embodiment of the present invention includes a power receiving component 210 , a transmitting component 280 , a second elastic component 250 , and a third connecting component 260 .

As shown in FIGS. 4a and 4b, the power receiving member 210 includes a main body portion 210a, a power receiving portion 220, and a connecting body portion 210a and an intermediate connecting member that connects the power receiving portion and the main body portion. The intermediate connecting member is a first connecting member 230. The body portion 210a includes a fitting end 212, a boss 213, a positioning block 214, a relief groove 215, and a through hole 216. One end of the power receiving member 210 in the Y direction is a fitting end 212, and the through hole 216 is disposed at an end of the power receiving member 210 opposite to the fitting end 212; the escape groove 215 is along the outer circumference of the power receiving member 210 along the power receiving member 210 The rotation axis direction is set (the Y direction is shown as the direction along the rotation axis); and the assembly end 212 is further provided with a fourth hole 212a. As shown in FIG. 3, the power receiving portion 220 includes a contact portion 220a, a first connecting portion 220b, and a second connecting portion 220c. The first connecting portion 220b is provided with a third hole 220e, and the second connecting portion 220c is provided with a second portion. Hole 220d. Those skilled in the art can understand from the above structure that the power receiving portion described in the present technical solution is hinged to form a linked structure through the main connecting portion of the intermediate connecting member.

As shown in FIGS. 5a and 5b, the transmission member 280 is a cylindrically-shaped hub having an outer surface provided with a gear 281 having an inner wall 286 having a non-circular cross section, and an inner portion 286 having an opening 285 formed therein. A pair of projecting portions 283 are further disposed on the inner wall 286 in the direction of the rotation axis of the hub 280. The projecting portion 283 extends in the direction of the rotation axis of the hub 280, and one end of the projecting portion 283 in the Y direction is a connecting end 282, which is connected. A first hole 282a is disposed on the end 282. A gap is provided between the pair of projecting portions 283, and the gap penetrates the hub 280 in the direction of the rotation axis of the hub 280. Preferably, the positioning block 214 of the power receiving component 210 is disposed in the inner wall 286 of the hub 280 to cooperate with the inner wall 286 to transmit power. Therefore, the positioning block 214 is a transmission portion, and the inner wall 286 is a force receiving portion.

As shown in FIG. 2 and FIG. 6, the assembly relationship between the above components is such that the power receiving portion 220 passes through the third hole 220e and the fourth hole 212a and the power through a first connecting member 230. The main body portion 210a of the receiving member 210 is hinged to the second hinge point 231, and the power receiving portion 220 is swingable relative to the main body portion 210a toward the rotation axis direction of the main body portion 210a. The power receiving member 210 is mounted in the reverse direction in the Y direction into the hub 280, the protruding portion 283 enters into the escape groove 215, and as the power receiving member 210 moves in the Y direction with respect to the hub 280, the protruding portion 283 It can slide in the escape groove 215. When the power receiving member 210 is moved to the proper position in the Y direction, one end of the power receiving member 210 provided with the through hole 216 passes through the opening 285 of the bottom 284 of the hub 280, and the positioning block 214 enters into the inner wall of the hub 280 due to the positioning. The block 214 and the inner wall 286 of the hub 280 have substantially the same cross section in a plane perpendicular to the Y direction. When the positioning block 214 enters the inner wall 286, the power receiving member 210 can only move in the Y direction relative to the hub 280. When the power receiving unit 210 receives the rotational power from the image forming apparatus, the hub 280 is rotated.

When the power receiving member 210 is moved to a proper position with respect to the hub 280 in the illustrated Y direction, the power receiving portion 220 passes through the first hole 282a and the second hole 220d through the second connecting member 240. The protrusion 283 is hinged to the first hinge point 241, the force receiving portion 220 is swingable relative to the protrusion 283 around the first hinge point 241, and the second connector 240 is configurable relative to the connection end 282 in the first hole 282a. It moves in a direction perpendicular to the axis of rotation of the second hole 220d.

The second elastic member 250 is sleeved from the opposite side of the hub 280 in the Y direction to the power receiving member 210, and the third connecting member 260 is coupled to the power receiving member 210 through the through hole 216, the third connecting member 260 The limiting portion serves to limit the axial movement amount of the power receiving member 210 along the hub 280, and prevents the power receiving member 210 from coming off the hub 280. One end of the second elastic member 250 abuts on the hub 280, and the other end abuts against the third connecting member 260. Under the elastic force of the second elastic member 250, The force receiving member 210 is subjected to a biasing force in the Y direction to bring the power receiving member 210 into a contracted state.

The power receiving portion 220 is hinged to the extension portion 283 by a second connecting member 240, and the power receiving portion 220 is hinged to the fitting end 212 on the power receiving member 210 through the first connecting member 230, the second connection The position of the member 240 is closer to the rotational axis of the power receiving member 210 than the position of the first link 230. When the power receiving component 210 is in the retracted position, the first connector 230 is disposed in parallel with the second connector 240, as shown in Figure 7a.

When the process cartridge 200 is mounted in the main body 100 of the image forming apparatus, the power receiving unit moves along the X direction with the process cartridge 200 to the rotation axis of the power receiving member 210 and the rotation axis of the driving member 900 provided in the main body 100. Basic coaxial position. The power receiving member 210 in the contracted state does not come into contact with the driving member 900 during the movement with the process cartridge 200. In addition, the present technical solution also provides a telescopic control mechanism for controlling the extension of the power receiving member 210 in the axial direction. As shown in FIG. 7a and FIG. 7b, 110 is a telescopic control mechanism for receiving an external force F. The telescopic control mechanism 110 is provided with an inclined surface 110c for forming a height difference, and the power receiving member 210 is provided with a boss 213 on the outer circumference thereof, and the boss 213 abuts against the inclined surface 110c; The force F causes the telescopic control mechanism 110 to move in the X direction, thereby forcing the power receiving member 210Y to protrude; at this time, the second connecting member 240 cooperates with the protruding portion 283 to be axially restrained. Directional movement, and the power receiving member 210 is axially moved relative to the protruding portion 283, and the power receiving portion 220 is pulled around the first connection under the pulling of the second connecting member 240 The member 230 swings; the contact portion 220a of the power receiving portion 220 moves toward an end portion of the driving member 900, and after the power receiving portion 220 swings into position, the contact portion 220a and the driving portion 900 The upper protrusions 901 are engaged.

When the process cartridge 200 needs to be taken out from the main body 100, the telescopic control mechanism 110 moves in the opposite direction in the X direction, and the pressing action of the inclined surface 110c on the boss 213 disappears. Under the action of the second elastic member 250, the power receiving member The contraction 210 begins to contract, that is, the extension portion 283 moves in the Y direction with respect to the power receiving member 210, and the extension portion oscillates the contact portion 220a of the power receiving portion 220 in the Y direction, and the power receiving member 210 is disengaged from the driving member 900. .

Embodiment 2

Different from the above embodiment, the present embodiment employs a power receiving unit of another structure, so that the process cartridge can be smoothly mounted into the main body or taken out from the main body.

As shown in FIG. 9a, the power receiving unit includes a power receiving member 210, a fourth connecting member 270, a fourth elastic member 500, a transmitting member 280, and a third connecting member 260. The transmission member 280 is a cylindrical hub having a circumferential surface provided with a gear and a limited position chute 287 provided on the inner surface thereof. The power receiving part 210 includes a main body portion 210a and a power receiving portion 320, and a pair of mutually symmetrical power receiving portions 320 are provided at one end of the main body portion 210a in the Y direction, and the intermediate connecting portion 320b of the power receiving portion 320 and the main body portion 210a The fitting end 212 is hinged by a joint, and the power receiving portion 320 is swingable relative to the power receiving member 210 about the hinge point 320e. As shown in FIGS. 8a and 8b, the power receiving portion 320 includes a first contact portion 320a, an intermediate connection portion 320b, a second contact portion 320c, and a tension portion 320d. The first contact portion 320a and the second contact portion 320c are substantially identical in structure, and the first contact portion 320a and the second contact portion 320c are disposed at a set angle, preferably substantially perpendicular to each other. As shown in FIG. 9b, a first elastic member 400 is further disposed between the two power receiving portions 320 on the power receiving member 210. Both ends of the first elastic member 400 are connected to the tension portion 320d of the power receiving portion 320. The tension portion 320d is subjected to a force perpendicular to the direction of the rotation axis of the power receiving member 210, and the force causes the power receiving portion 320 to protrude in the Y direction in the natural state, the second contact portion 320c It projects toward the direction of the rotation axis away from the power receiving member 210. Preferably, the first elastic member 400 in this embodiment is a tension spring.

Of course, those skilled in the art can use the power receiving portion 320 to elastically connect with the main body portion 210a, or provide a torsion spring on the main body portion 210a, so that the power receiving portion 320 extends in the Y direction in the first contact portion 320a in the natural state. Out.

As shown in FIG. 9a, the assembly relationship of the above components is such that the fourth elastic member 500 is sleeved on the power receiving member 210, and the power receiving member is mounted in the reverse direction in the Y direction into the hub 280. The power receiving member 210 The through hole is passed through the bottom of the hub 280 such that the power receiving member 210 and the axis of rotation of the hub 280 are substantially coaxial with the power receiving member transmitting member. The fourth connecting member 270 passes through the through hole in the power receiving member 210, and both ends of the fourth connecting member 270 are located in the limiting chute 287 of the inner wall of the hub 280, and the limiting chute 287 is opposite to the hub of the power receiving member 210. The angle of rotation of 280 is limited to transfer rotational force from power receiving component 210 into hub 280. One end of the fourth elastic member 500 abuts on the hub, and the other end abuts on the fourth connecting member 270, thereby applying a force in the Y direction to the power receiving member 210 to extend the power receiving member in the Y direction. A portion of the power receiving member 210 located below the hub 280 is further provided with a third connecting member 260 as a limiting portion to prevent the power receiving member 210 from moving too far in the Y direction, resulting in a power receiving member. 210 is disengaged from the hub 280. A fourth elastic member 500 is further disposed between the fourth connecting member 270 and the inner wall of the hub 280. One end of the elastic member 500 abuts against the fourth connecting member 270, and the other end abuts against the hub 280, thereby applying an elastic force toward the power receiving member 210 toward the Y direction, so that the power receiving member 210 protrudes in the Y direction. . When the power receiving component 210 and the hub 280 cooperate to transmit power, the fourth connecting member 270 is a transmitting portion, and the limiting slot 287 disposed on the inner circumference of the hub is a force receiving portion and the transmitting portion. Cooperate with the transmission of power.

When the process cartridge 200 is mounted in the main body 100, as shown in FIG. 10a, the first contact portion 320a is in contact with the transfer end 910 of the drive member 900, and the first contact portion 320a is forced by the transfer end 910 of the drive member 900. The swivel axis swings about the hinge point 320e and the second contact portion 320c flips. After the process cartridge is installed in position, the power receiving component 210 is at a position substantially coaxial with the drive component 900, the first contact portion 320a is at the bottom of the transfer end 910, and the drive component 900 The protruding portion 901 provided in the circumferential direction is engaged with the second contact portion 320c; and the other power receiving portion 320 in the symmetrical direction is not subjected to the force, and no wobble occurs, and the other protruding portion 901 on the driving member 900 is The first contact portion 320a of the other power receiving portion 320 is engaged as shown in FIG. 10b.

When the process cartridge 200 is detached in a direction opposite to the X, as shown in FIG. 11, the driving member 900 urges the power receiving portion 320 to rotate around the hinge 320e, and after the second contact portion 320c rotates, The first contact portion 320a is turned upward, and the power receiving member 210 is disengaged from the driving unit 900.

In the process of meshing the power receiving member 210 with the driving member 900, as shown in FIG. 11, since the angle between the first contact portion 320a and the second contact portion 320c is too small, the driving member 900 may be caused to press the first contact portion. At 320a, it is caught between the first contact portion 320a and the second contact portion 320c. In the present embodiment, by providing the power receiving member 210 in a retractable structure, when the driving member 900 is caught between the first contact portion 320a and the second contact portion 320c, the contraction of the power receiving member 210 in the Y direction can be avoided. The above situation has emerged.

FIG. 12 is a plan view of the power receiving member 210. In order to facilitate the transmission of power by the power receiving portion 320 after meshing with the driving member 900, as shown in FIG. 12, the power receiving portion 320 may be staggered, and the power receiving portion 320 is distributed in power receiving as seen from the direction of the rotation axis of the power receiving member 210. On both sides of the member 210, the two power receiving portions 320 are spaced apart by 180 degrees on the circumference of the power receiving member 210, and the swinging directions of the first contact portions 320a are parallel to each other, but do not face the direction of the rotation axis of the power receiving member 210.

Embodiment 3

Different from the above embodiment, this embodiment adopts another structure of the power receiving unit to make the process box It can be installed in the main body smoothly or taken out from the main body.

As shown in FIGS. 13 and 14, the power receiving unit includes a power receiving member 210, a transmitting member 280, a second elastic member 250, a third connecting member 260, and a fourth connecting member 270.

The power receiving part 210 further includes a main body portion 210a, a power receiving portion 420, and an intermediate connecting member that connects the power receiving portion 420 with the main body portion 210a. The intermediate connecting member includes a first swinging member 421 and a second swinging member 422; the power receiving member further includes a fifth connecting member 217, a sixth connecting member 218, a seventh connecting member 219, and a fifth elastic member 290. . A boss 213, a circular hole 261, and a circular hole 271 are provided in the main body portion 210a.

As shown in FIG. 15 and FIG. 16, the mounting end 212 of the main body portion 210a is provided with a fifth hole 212e, a first sliding slot 210b, and a sixth hole 212d. The side wall of the first sliding slot 210b is provided with a guiding rail 212c. The longitudinal direction of the guide rail 212c is substantially parallel to the rotational axis of the power receiving member 210. The power receiving portion 420 is provided with a second sliding groove 420b and a seventh hole 420a, and the longitudinal direction of the second sliding groove 420b is substantially parallel to the rotation axis of the power receiving member 210.

As shown in FIGS. 17 and 18, the first swinging member 421 is provided with an eighth hole 421a and a ninth hole 421b, and the second swinging member 422 is provided with a tenth hole 422a and an eleventh hole 422b.

As shown in FIGS. 19a and 19b, the components of the power receiving member 210 are meshed in such a manner that the tenth hole 422a of the second swinging member 422 and the fifth hole 212 of the power receiving member 210 are connected by the seventh connecting member 219, and the second The swinging member 422 is swingable relative to the power receiving member 210; the eleventh hole 422b of the second swinging member 422 is coupled to the eighth hole 421a of the first swinging member 421 through the sixth connecting member 218, and the first swinging member 421 is opposite to the first swinging member 421 The second swinging member 422 is swung; the power receiving portion 420 is mounted to the power receiving member 210 along the first chute 210b of the power receiving member 210, through the second chute 420b of the power receiving portion 420 and the guide rail 212c of the main body portion 210a. With the cooperation, the power receiving portion 420 can be expanded and contracted in the Y direction with respect to the power receiving member 210 in the first chute 210b; the ninth hole 421b of the first swinging member 421 and the seventh hole 420a of the power receiving portion 420 are connected through the fifth connection. The member 217 is connected, and the first swinging member 421 and the power receiving portion 420 can be relatively oscillated; the two ends of the fifth connecting member 217 connected to the power receiving portion 420 are located in the fifth hole 212e, and can follow the power receiving portion 420. Move while in the fifth hole 2 The inside of the 12e moves up and down along the rotation axis of the power receiving member 210. The fifth elastic member 290 is disposed in the fifth hole 212e, the fifth hole is disposed as an elongated hole (as shown in FIG. 15), and one end of the fifth elastic member 290 abuts against the inner wall of the long hole 212e. The other end abuts against the outer circumferential surface of the fifth connecting member 217, and the fifth elastic member 290 applies a force opposing the Y direction to the power receiving portion 420 to make the power receiving portion The 420 is contracted in the Y direction, that is, the power receiving portion 420 is slidable in the long hole 212e, and the long hole 212e is a third sliding groove. The power receiving member 210, the second swinging member 422, the first swinging member 421, and the power receiving portion 420 constitute a link mechanism. When the second swinging member 422 swings relative to the power receiving member 210, the power receiving portion 420 is driven along the first A chute 210b expands and contracts in the Y direction.

Those skilled in the art can know from the above structure that the power receiving portion described in the present technical solution is hinged to form a linked structure through the main connecting portion of the intermediate connecting member.

Of course, those skilled in the art can also use other methods to make the power receiving portion 420 in a contracted state in a natural state. If a tension spring is disposed between the two second oscillating members 422, the tension spring applies a force to the second oscillating member 422 toward the direction of the rotation axis of the power receiving member 210, and the power receiving member can also be powered in a natural state. The receiving portion 420 is in a contracted state.

As shown in FIG. 20, the transmission member 280 is a cylindrical hub. The outer surface of the hub 280 is provided with a gear, the inner surface is provided with a limit groove 287, and the bottom of the inner wall of the hub 280 is further provided with a circular hole 288.

As shown in FIGS. 13 to 21, the components of the power receiving unit are assembled in such a manner that the fourth connector 270 is inserted into the circular hole 271 of the power receiving member 210, and the power receiving member 210 is mounted in the hub 280, and power receiving is performed. One end of the member 210 provided with the circular hole 261 is inserted into the circular hole 288 at the bottom of the inner wall of the hub 280; as the power receiving member 210 is mounted into the hub 280, the two ends of the fourth connecting member 270 also move to the inner wall of the hub 280. In the position chute 287, the limit chute 287 is a force receiving portion that limits the rotation angle of the power receiving member 210 with respect to the hub 280; the second elastic member 250 is mounted to the power from the side opposite to the Y direction of the hub 280. The receiving member 210 and the third connecting member 260 pass through the circular hole 261 of the power receiving member 210 such that one end of the second elastic member 250 abuts against the hub 280 and the other end abuts against the third connecting member 260. The second elastic member 250 applies an elastic force reverse to the Y direction to the power receiving member 210 to contract the power receiving member 210 in the Y direction.

When the process cartridge 200 is mounted in the main body 100, the power receiving member 210 does not come into contact with the driving member 900. As shown in FIG. 21a, when the process cartridge 200 is mounted in the main body 100, the rotation axis of the power receiving member 210 is substantially coaxial with the rotation axis of the driving member 900. The power receiving member 210 is extended in the Y direction by the action of the telescopic control mechanism 110. As shown in FIG. 21b, when the power receiving member 210 is extended by a certain distance, the transmitting end 910 of the driving member 900 comes into contact with the second swinging member 422, thereby pushing the second swinging member 422 toward the turning axis away from the power receiving member 210. The swinging force pushes the power receiving portion 420 to project in the Y direction to mesh with the driving member 900.

When the process cartridge 200 is taken out, the control mechanism 110 reverses the power receiving member 210 in the Y direction. The force of the transmitting end 910 of the driving member 900 on the second swinging member 422 disappears, and the power receiving portion 420 is contracted in the Y direction by the fifth elastic member 290.

Embodiment 4

This embodiment combines the transmitting member 280 of the first embodiment with the power receiving member 210 of the third embodiment to form a power receiving unit of a new structure. As shown in FIG. 22, the power receiving unit includes a power receiving part 210, a transmitting part 280, and an intermediate connecting part. The intermediate connecting member includes a first swinging member 421, and the second swinging member 422 further includes a third swinging member 289; the power receiving unit further includes a third connecting member 260, a fourth connecting member 270, and a second Elastic member 250.

As shown in FIG. 23, the transmission member 280 is a cylindrical hub. The outer surface of the hub 280 is provided with a gear, and the inner wall is provided with a limited position chute 287. The bottom of the inner wall is provided with a circular hole 288, and the extension portion 283 is disposed for transmission. The portion 280 extends in the direction of the rotation axis of the hub 280. One end of the protrusion portion 283 in the Y direction is a connection end 282, and the connection end 282 is provided with a connection hole 282b.

As shown in FIG. 22, the power receiving member 210 has a structure similar to that of the power receiving member in the third embodiment, and includes a power receiving portion 420, a first swinging member 421, a second swinging member 422, and a main body portion 210a. For the assembly relationship between the above components, reference may be made to the assembly relationship of the power receiving member 210 in the third embodiment. The difference is that the power receiving member 210 in the present embodiment does not need to provide the fifth elastic member 290, and the escape groove 215 is provided on the outer circumference of the main body portion 210a. In addition, a third swinging member 289 is further disposed, and the twelfth hole 289a and the thirteenth hole 289b are respectively disposed at two ends of the third swinging member 289.

As shown in FIGS. 22 to 25, the assembly relationship of the components of the above-described power receiving unit is such that the fourth connecting member 270 is inserted into the circular hole 271 of the power receiving member 210, and the power receiving member 210 is mounted in the hub 280, and power receiving is performed. The member 210 is provided with a circular hole 288 at one end of the circular hole 261 inserted into the bottom of the opening of the transmission portion 280, and the protruding portion 283 enters into the escape groove 215 of the power receiving member 210, and both ends of the fourth connecting member 270 are stuck in the transfer. In the limit chute 287 on the inner wall of the portion 280, the limit chute 287 is a force receiving portion that limits the rotation angle of the power receiving member 210 with respect to the hub 280; and the power receiving member 210 is located at the hub 280 in the Y direction. A portion of one side is sleeved with the second elastic member 250, and the third connecting member 260 passes through the circular hole 261 of the power receiving member 210, so that one end of the second elastic member 250 abuts against the hub 280, and the other end abuts against the third portion. On the connector 260. The second elastic member 250 applies an elastic force that is reversed in the Y direction to the power receiving member 210, causing the power receiving member 210 to contract in the Y direction, and the third swing. The twelfth hole 289a of the piece 289 is hinged with the connecting hole 282b of the connecting end 282 of the protruding portion 283, and the third swinging member 289 is rotatable relative to the protruding portion 283 about the connecting hole 282b, and the third swinging member 289 is The thirteen holes 289b are connected to the tenth hole 422b of the first swinging member 421 and the eighth hole 421a of the first swinging member 421 through the sixth connecting member 218, and the third swinging member 289 is rotatable around the sixth connecting member 218. A swinging member 421 or a second swinging member 422 is swung.

Of course, one skilled in the art can also connect one end of the third swinging member 289 with the first swinging member 421 or the second swinging member 422, and the third swinging member 289 can be opposite to the first swinging member 421 or the second swinging member 422. Swinging can also meet the above requirements. Alternatively, the connecting end 282 of the protruding portion 283 is directly connected to the first swinging member 421 or the second swinging member 422, and the connection point of the first swinging member 421 or the second swinging member 422 and the connecting end 282 may be opposite to the connecting end. The 282 moves in a direction perpendicular to the axis of rotation of the power receiving member 210.

As shown in FIG. 25a, when the external force is not applied, the power receiving member 210 and the power receiving portion 420 are in a contracted state by the action of the second elastic member 250, and the power receiving unit is mounted to the main body 100 with the process cartridge 200. There is no contact with the drive unit 900, as shown in Fig. 21a. As shown in FIG. 25b, when the process cartridge 200 is mounted to the main body 100, when the telescopic control mechanism 110 pushes the power receiving member 210 to extend in the Y direction, since the relative position of the extension portion 283 and the hub 280 is fixed, and the extension portion 283 The movement of the connecting rod 284 connected by the connecting end 282 in the Y direction is restricted. Therefore, as the power receiving member 210 is extended, the pull rod 284 applies a force to the fifth connecting member 218 to move the fifth connecting member 218 away. The power receiving member 210 swings in the rotation axis direction, and further pushes the power receiving portion 420 to protrude in the Y direction to mesh with the driving member 900.

When the process cartridge 200 needs to be taken out from the main body 100, the process of disengaging the power receiving member 210 from the driving member 900 is reversed from the above-described meshing process. The force applied by the control mechanism 110 to the power receiving member 210 disappears, and the power receiving member 210 is subjected to the resilience of the second elastic member 250 to retract the power receiving member 210. At this time, the lever 284 The pulling force is not applied to the fifth connecting member 218, and the fifth connecting member 218 is urged to move, so that the fifth connecting member 218 moves toward the rotation axis of the power receiving member 210. The first swinging member 421 swings downward about the fifth connecting member 281, and the power receiving portion 420 is retracted in the direction of the rotation axis of the power receiving member 210 by the first swinging member 421 and is driven by the first swinging member 421. Component 900 is disengaged.

In the above embodiment, the telescopic control mechanism 110 may be provided as a pusher structure as shown in FIG. As shown in FIG. 16, one end of the push rod 110 near the power receiving member 210 is an active end 110e, and is provided with a push. The exit surface 110b, the inclined surface 110c, and the retracting surface 110d; the one end of the push rod 110 away from the dynamic power receiving member 210 is the force receiving end 110f, and the first abutting surface 110a and the third elastic member 111 are disposed. When the push rod 110 is mounted in the process cartridge 200, one end of the third elastic member 111 abuts on the first abutting surface 110a, and the other end abuts against the process cartridge 200. When the push rod 110 is attached to the process cartridge 200, when it is subjected to an external force, the retracted surface 110d of the acting end 110e of the push rod 110 comes into contact with the boss 213 of the power receiving member 210, and the power receiving member 210 is in a contracted state. When the process cartridge 200 is mounted in the main body 100, the door cover 15 is closed, and as the door cover 15 is rotated about the hinge shaft 11, the inner wall of the door cover 15 exerts a force on the force receiving end 110f of the push rod 110, so that The push rod 110 moves toward the power receiving member 210, and the inclined surface 110c of the push rod 110 comes into contact with the boss 213, and presses the boss 213 to project the power receiving member 210 in the direction of the rotation axis thereof. As the push rod 110 continues to move, the boss 213 will pass over the inclined surface 110c and come into contact with the push-out surface 110b. At this time, the extension distance of the power receiving member 210 reaches the maximum value.

When the process cartridge 200 is taken out from the main body 100, the push rod 110 moves in a direction away from the power receiving member 210 by the third elastic member 111, and the contraction process of the power receiving member 210 and the extension of the above-described power receiving member 210 The process is reversed and will not be repeated here.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A power receiving unit for use in a process cartridge detachably mounted in an image forming apparatus, comprising a power receiving member including a body portion and a power receiving portion, the body portion having a rotation axis, The power receiving portion is coupled to the main body portion, wherein the power receiving unit further includes a control mechanism, the control mechanism controls the main body portion to slide along a direction of its rotation axis, and the power is The receiving unit moves with respect to the main body portion.
A power receiving unit according to claim 1, wherein said power receiving portion is provided at one end of said main body portion, said power receiving unit further comprising an intermediate connecting member, said power receiving portion passing through the middle A connecting member is coupled to the body portion.
A power receiving unit according to claim 2, wherein said main body portion is provided with a fourth hole in a manner perpendicular to a rotation axis thereof, and said intermediate connecting member is a first connecting member. The power receiving portion is provided with a third hole, and the power receiving portion is hinged to the second hinge point with the main body portion through the fourth and third holes through the first connecting member.
A power receiving unit according to claim 2, wherein said intermediate connecting member includes a first swinging member and a second swinging member, said power receiving portion being hinged with said first swinging member, said The first swinging member is hinged to the second swinging member, and the second swinging member is hinged to the main body portion.
A power receiving unit according to claim 4, wherein the body portion end portion is provided with a first sliding groove in the axial direction, and the power receiving portion is disposed in the first sliding groove.
A power receiving unit according to claim 4, wherein said body portion end portion is provided with a guide rail, said power receiving portion is provided with a second sliding groove, said guide rail and said second sliding portion The power receiving portion is slidable along the guide rail.
A power receiving unit according to claim 4, wherein the end portion of the main body portion is further provided with a third sliding groove, and further comprises a fifth elastic member disposed in the third sliding groove.
A power receiving unit according to claim 7, wherein said power receiving portion is further provided with a seventh hole, and further comprising a fifth connecting member passing through said seventh hole and passing said The fifth connecting member is connected to the third sliding slot, and the fifth elastic end abuts against the inner surface of the third sliding slot along one end of the power receiving member in the axial direction, and the other end is connected to the fifth connecting member Abut.
A power receiving member according to claim 2, wherein said main body portion A boss is disposed on the outer circumference, and a portion of the control mechanism abuts the boss.
A power receiving unit according to claim 9, wherein said control mechanism is provided with an inclined surface, said inclined surface abuts said boss, and said convex is controlled by said inclined surface The stage slides in the direction of the rotation axis of the power receiving member.
A power receiving unit according to any one of claims 1 to 10, further comprising a hub having a rotation axis, said power receiving member being disposed in said hub along said hub axis direction.
A power receiving unit according to claim 11, wherein said hub is provided with a projecting portion in the axial direction thereof, and said projecting portion is fixedly disposed on said hub.
A power receiving unit according to claim 12, wherein said projecting portions are a pair, and a gap is provided between said pair of projecting portions, said gap penetrating in a direction of said hub rotation axis The hub.
A power receiving member according to claim 13, wherein said power receiving member is disposed in said gap along a rotation axis of said hub.
A power receiving member according to claim 14, wherein a first hole is provided in an end portion of said extending portion in a direction perpendicular to a rotation axis of said hub, said power receiving portion being disposed There is a second hole, and the power receiving portion is hinged to the first hinge point through the first hole and the second hole through the first connecting piece and the protruding portion.
A power receiving member according to claim 14, further comprising a third swinging member, one end of said third swinging member being hinged to one end of said first swinging member and said second swinging member, respectively One end is hinged to the first aperture on the extension.
A power receiving member according to claim 15, wherein said power receiving member is slid in the direction of the rotation axis of said power receiving member under the control of said control means, said power receiving portion is wound around The first hinge point oscillates in a plane in which the axis of rotation is located.
A power receiving member according to claim 16, wherein said control means controls said power receiving member to slide in the axial direction, said power receiving portion in said first chute along said Slide in the direction of the axis.
A power receiving unit according to claim 11, wherein said main body portion A transmission portion is provided in the radial direction, and a force receiving portion is provided in the inner circumferential direction of the hub, and the transmission portion meshes with the force receiving portion to transmit power.
A power receiving unit according to claim 11, wherein said main body portion further has a finite portion in a radial direction thereof for abutting against a surface of said hub perpendicular to said rotation axis To limit the movable distance of the power receiving member in the direction of the hub axis.
A power receiving unit according to claim 20, further comprising a second elastic member axially sleeved with said main body portion and disposed at said limiting portion and said lower surface of said hub between.
A process cartridge detachably mounted in an image forming apparatus, characterized in that the process cartridge comprises a power receiving unit according to any one of claims 1 to 21.
A process cartridge according to Claim 22, wherein said process cartridge includes a housing, said power receiving unit is disposed along a longitudinal direction of said process cartridge, and said control mechanism is at least partially disposed at said On the housing.
A process cartridge according to Claim 23, wherein the projection of said control mechanism and said hub in the direction of the axis of rotation of said hub at least partially overlaps as viewed in the longitudinal direction of said process cartridge .
An image forming apparatus comprising the process cartridge according to any one of claims 19 to 24.
An image forming apparatus according to claim 25, wherein said image forming apparatus is further provided with a driving member, said driving member being provided with a protruding portion, said protruding portion and said power receiving portion Engagement transmits power.
An image forming apparatus according to claim 26, wherein said driving member abuts said first swinging member and said second swinging member during sliding of said power receiving member in the axial direction, And forcing the first swinging member and the second swinging member to move.