Developing cartridge

Abstract

The present invention relates to a developing cartridge applicable to an imaging device provided with a detection component. The developing cartridge includes a housing, a driving force receiving member, a driving member, and a counting component located at the end of the housing. Among them, the driving force receiving member sequentially transmits the driving force received from the outside to the driving member and the counting component; the counting component includes a rotating body and a counting member that are combined with each other. The rotating body drives the counting member to interact with the detection component under the drive of the driving member; the rotating body is provided with a time delay device, and the driving member is provided with a triggering member. The time delay device is used to extend the counting duration of the counting member; the extended counting duration is the duration required for the triggering member to rotate from the first position to the second position; when the time delay device starts to be opposite to the driving member, the triggering member is in the first position, and when the time delay device is no longer opposite to the driving member, the triggering member is in the second position. The time delay device is arranged on the rotating body and does not occupy the space inside the developing cartridge, and the structure of the developing cartridge is simplified.

Description

[0001] This invention claims the priority of the Chinese prior application with the invention title "Developing Cartridge", application number CN202122860826.3, filed by the applicant on November 19, 2021. All the content of the prior application is incorporated herein by reference. Technical Field

[0002] The present invention relates to the field of electrophotographic imaging, and particularly to a developing cartridge detachably installed in an electrophotographic imaging device. Background Art

[0003] A developing cartridge is a consumable product used in imaging devices such as laser printers or copiers. It stores toner required for imaging. During operation, a power receiving member in the developing cartridge receives a driving force from the imaging device. A powder feeding member and a developing member installed in the developing cartridge both rotate at a predetermined speed in a predetermined direction. The powder feeding member is used to supply toner to the surface of the developing member, and the developing member is used to supply toner to the surface of a photosensitive member formed with an electrostatic latent image, so that the electrostatic latent image is developed.

[0004] To enable the imaging device to accurately grasp the usage status of the developing cartridge, a component called a "counting component" is provided in the existing developing cartridge. When the developing cartridge is first installed in the imaging device and starts to work, the counting component touches the detection component in the imaging device. Through parameters such as the touch duration, touch interval, and touch times between the counting component and the detection component, information such as the service life and model of the developing cartridge is known to the imaging device. Summary of the Invention

[0005] For two different models of developing cartridges, there may be a situation where the counting components have the same structure but different rotation speeds. Making the counting components of the two models universal is a considered design direction. To reduce the rotation speed of the counting component with a faster rotation speed, a common method is to set a deceleration component such as a reduction gear between the counting component and the driving member. However, the setting of the deceleration component will inevitably occupy a part of the space of the developing cartridge, which is not conducive to simplifying the structure of the developing cartridge.

[0006] The present invention provides a developing cartridge applicable to an imaging device provided with a detection component. The developing cartridge includes a housing, a driving force receiving member, a driving member, and a counting component located at the end of the housing. Among them, the driving force receiving member sequentially transmits the driving force received from the outside to the driving member and the counting component; the counting component includes a rotating body and a counting member combined with each other. The rotating body drives the counting member to interact with the detection component under the drive of the driving member; the rotating body is provided with a delay device, and the driving member is provided with a triggering member. The delay device is used to extend the counting duration of the counting member; the extended counting duration is the duration required for the triggering member to rotate from the first position to the second position; when the delay device starts to face the driving member, the triggering member is in the first position, and when the delay device no longer faces the driving member, the triggering member is in the second position; the delay device is arranged on the rotating body, and the delay device does not additionally occupy the space inside the developing cartridge, thereby simplifying the structure of the developing cartridge.

[0007] Among them, the angle through which the triggering member rotates from the first position to the second position is less than 360°; the triggering member located at the second position can force the rotating body to rotate until the delay device no longer faces the driving member.

[0008] In an embodiment of the present invention, when the delay device faces the driving member, the rotating body remains stationary and the counting member is in a counting state; in some embodiments, the counting member is provided with at least one counting protrusion. When the delay device faces the driving member, the counting protrusion continuously abuts against the detection component, and the rotating body is further provided with a triggered member, and the triggered member can be triggered by the triggering member to drive the rotating body to rotate again.

[0009] When observed along the rotation axis of the rotating body, the triggered member faces the delay device. The triggered member extends in the radial direction of the rotating body and does not extend beyond the rotating body.

[0010] In another part of the embodiments, the counting member is provided with at least two counting protrusions, and the two counting protrusions are arranged at intervals along the rotation direction of the counting member. When the delay device faces the driving member, the detection component is located between the two counting protrusions. Description of the Drawings

[0011] Figure 1 is a perspective view of the developing cartridge related to the present invention.

[0012] Figure 2 is a partial exploded view of the driving end of the developing cartridge according to Embodiment 1 of the present invention.

[0013] Figure 3 is a partial exploded view of the conductive end of the developing cartridge according to Embodiment 1 of the present invention.

[0014] Figure 4It is a cross-sectional view of the developing cartridge according to Embodiment 1 of the present invention, cut along a plane parallel to its front-back direction.

[0015] Figure 5 It is an overall side view of the developing cartridge according to Embodiment 1 of the present invention when viewed from below upward.

[0016] Figure 6A It is a side view of the driving end of the developing cartridge according to Embodiment 1 of the present invention when viewed from below upward.

[0017] Figure 6B It is a cross-sectional view of the developing cartridge according to Embodiment 1 of the present invention, cut along a plane parallel to its front-back direction and passing through the driving force receiving member and the driving gear at the same time.

[0018] Figure 7 It is an overall side view of the developing cartridge according to Embodiment 2 of the present invention when the face cover is hidden and viewed from above downward.

[0019] Figure 8 It is a partial component exploded view of the driving end of the developing cartridge according to Embodiment 3 of the present invention.

[0020] Figure 9A It is a side view of the driving end of the developing cartridge according to Embodiment 3 of the present invention when viewed from below upward.

[0021] Figure 9B It is a side view of the developing cartridge according to Embodiment 3 of the present invention when viewed from left to right.

[0022] Figure 10 It is a side view of the developing cartridge according to Embodiment 4 of the present invention when viewed from left to right.

[0023] Figure 11 It is a side view of the driving end of the developing cartridge according to Embodiment 4 of the present invention when viewed from below upward.

[0024] Figure 12 It is a three-dimensional view of the driving end of the developing cartridge according to Embodiment 5 of the present invention with the driving end cover hidden.

[0025] Figure 13 It is a side view of the developing cartridge according to Embodiment 5 of the present invention when viewed from left to right along its left-right direction.

[0026] Figure 14 It is a side view of the driving end of the developing cartridge according to Embodiment 6 of the present invention when viewed from above downward.

[0027] Figure 15 It is a side view of the driving end of the developing cartridge according to Embodiment 6 of the present invention when viewed from below upward.

[0028] Figure 16A and Figure 16B is a perspective view of the counting part in the counting component related to Embodiment Seven of the present invention.

[0029] Figure 17A is a top view of the counting part of the counting component related to Embodiment Seven of the present invention when observed along its rotation axis.

[0030] Figure 17B is a bottom view of the counting part of the counting component related to Embodiment Seven of the present invention when observed along its rotation axis.

[0031] Figure 18 is a perspective view of the stirring part gear related to Embodiment Seven of the present invention.

[0032] Figure 19A - Figure 19F is a schematic diagram of the counting process of the counting part in the counting component related to Embodiment Seven of the present invention.

[0033] Figure 20 is a perspective view of the counting part in the counting component related to Embodiment Eight of the present invention.

[0034] Figure 21 is a perspective view of the counting part in the counting component related to Embodiment Nine of the present invention.

[0035] Figure 22 is a top view of the counting component related to Embodiment Ten of the present invention when combined with the driving part. Detailed Embodiment

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] [Overall Structure of the Developing Cartridge]

[0038] Figure 1 is a perspective view of the developing cartridge related to the present invention. The developing cartridge C has the front-back direction, left-right direction, and up-down direction as shown in the figure, and can be generally installed in the imaging device forward along the front-back direction 101 and taken out backward 102. One end for receiving the driving force from the imaging device is called the driving end 103, corresponding to the left side in the figure, and one end for receiving power from the imaging device is called the conductive end 104, corresponding to the right side in the figure.

[0039] The developing cartridge C includes a housing 1 for accommodating toner, a rotating member 2 rotatably mounted in the housing 1, a driving force receiving member 3 located at the driving end 103, a counting component 5 disposed on the same side as the driving force receiving member 3, and a gear set 4 for transmitting the driving force between the driving force receiving member 3 and the counting component 5. The driving force receiving member 3 is configured to receive the driving force from the imaging device and drive the rotating member 2 and the counting component 5 to operate. The rotating member 2 extends along the left-right direction / length direction / longitudinal direction of the developing cartridge and is supported by the housing 1 in a rotatable manner. Specifically, a developing member 21 for supplying toner outward is a type of rotating member, and a powder feeding member 22 (as Figure 4 shown) that contacts the developing member 21 and is used to convey toner to the developing member 21 is also a type of rotating member. A stirring member 23 for stirring the toner to prevent caking and at the same time conveying the toner to the powder feeding member 22 is also a type of rotating member.

[0040] As Figure 1 shown, the developing member 21 is disposed near the front of the developing cartridge C. Along the front-rear direction, the driving force receiving member 3 is located behind the developing member 21, and the counting component 5 is located behind the driving force receiving member 3. Therefore, the driving force receiving member 3 is closer to the developing member 21 than the counting component 5. In comparison, during the operation of the developing cartridge C, the resistance received by the developing member 21 during rotation is much greater than the resistance received by the counting component 5 during rotation. At this time, the driving force receiving member 3 is disposed closer to the developing member 21, which can ensure more efficient transmission of the driving force between the driving force receiving member 3 and the developing member 21.

[0041] Continuing as Figure 1 shown, the developing cartridge C further includes a driving end cover 11 mounted on the driving end 103. Both the driving force receiving member 3 and the counting component 5 are exposed through the driving end cover 11. Therefore, when the driving force is transmitted to the counting component 5, the counting member 51 in the counting component 5 can interact with the detection component in the imaging device.

[0042] [Embodiment 1]

[0043] Figure 2 is a partial exploded view of the driving end of the developing cartridge according to Embodiment 1 of the present invention; Figure 3 is a partial exploded view of the conductive end of the developing cartridge according to Embodiment 1 of the present invention; Figure 4 is a cross-sectional view of the developing cartridge according to Embodiment 1 of the present invention taken along a plane parallel to its front-rear direction; Figure 5 is an overall side view of the developing cartridge according to Embodiment 1 of the present invention when viewed from below to above.

[0044] As Figure 2As shown in the figure, the housing 1 includes a bottom case 1a and a face cover 1b which are combined with each other. The toner chamber 10 is located between the bottom case 1a and the face cover 1b. The bottom case 1a has a left side wall 1a1 at the driving end 103 and a right side wall 1a2 at the conductive end 104. The toner chamber 10 is located between the left side wall 1a1 and the right side wall 1a2. The developing member 21, the powder feeding member 22, and the stirring member 23 are respectively supported by the left side wall 1a1 and the right side wall 1a2. The powder filling port 13 is provided on the left side wall 1a1 or the right side wall 1a2. When the toner in the toner chamber 10 is consumed, the user can supplement new toner into the toner chamber 10 through the powder filling port 13.

[0045] The gear set 4 includes a first gear 41 combined with the driving force receiving member 3, a second gear 42 and a third gear 43 respectively located at the ends of the developing member 21 and the powder feeding member 22, and a fourth gear 44 combined with the counting assembly 5. Therefore, the second gear 42 can be called the developing member gear, and the third gear 43 can be called the powder feeding member gear. Among them, the first gear 41 meshes with the second gear 42 and the third gear 43 simultaneously. Along the front-rear direction, the first gear 41 and the fourth gear 44 are spaced apart from each other, and the driving force between them is transmitted through an intermediate transmission assembly. The first gear 41 and the driving force receiving member 3 can be integrally formed or separately formed, as long as the driving force of the driving force receiving member 3 can be stably transmitted to the first gear 41. Preferably, the first gear 41 and the driving force receiving member 3 are coaxially arranged.

[0046] In this embodiment, the rotation axis L23 of the stirring member 23 is parallel to the rotation axis of the developing member 21. The fourth gear 44 is coaxially arranged with the stirring member 23 and can be called the stirring member gear. The driving force received by the driving force receiving member 3 is first transmitted from the driving end 103 to the conductive end 104, and then transmitted back from the conductive end 104 to the driving end 103. As Figure 3 shown, at least one of the developing member 21 and the powder feeding member 22 can be used to transmit the driving force from the driving end 103 to the conductive end 104. Correspondingly, the gear set 4 further includes a fifth gear 45 provided at the conductive end 104 and a seventh gear 47 coaxially arranged with the stirring member 23. The connection manner between the fifth gear 45 and the seventh gear 47 can be adjusted according to the rotation direction requirement of the counting assembly 5, the toner cartridge size requirement, etc. For example, they can be directly meshed to achieve connection, or connected through one or more sixth gears 46. For this embodiment, the seventh gear 47 located at the conductive end 104 can be regarded as the driving force input gear of the stirring member 23, and the fourth gear 44 located at the driving end 103 can be regarded as the driving force output gear. For the counting assembly 5, the fourth gear 44 can be regarded as the driving gear.

[0047] As Figure 3As shown, the developing cartridge C further includes a conductive end cap 12 mounted on the conductive end 104. The fifth gear 45, the sixth gear 46, and the seventh gear 47 are all located between the right side wall 1a2 of the bottom case and the conductive end cap and are thus protected. Therefore, the driving force received by the driving force receiving member 3 is first transmitted to the conductive end 104 through the developing member 21 and / or the powder feeding member 22, and then transmitted to the stirring member 23 through the fifth gear 45, the sixth gear 46, and the seventh gear 47. Finally, it is transmitted to the fourth gear 44 by the stirring member 23, and then the counting assembly 5 is driven to work by the fourth gear 441.

[0048] As Figure 5 shown, the developing cartridge C further includes a first urging portion 14a and a second urging portion 14b provided on the left and right sides. When the developing cartridge is installed, the first urging portion 14a and the second urging portion 14b receive the urging force, thereby forcing the developing cartridge C to be held at a predetermined position in contact with the developing member 21 and the photosensitive member (not shown). Optionally, the first urging portion 14a and the second urging portion 14b can be provided on the end caps on the left and right sides, or can protrude from the left and right sides of the housing 1. Along the left and right direction, the first urging portion 14a and the second urging portion 14b are substantially aligned (as Figure 4 shown by the dashed line in the figure). Along the width direction / front-back direction / transverse direction of the developing cartridge C, the first urging portion 14a and the second urging portion 14b are closer to the front 104 / the developing member 21, and the urging force can be more effectively transmitted to the developing member 21.

[0049] Figure 6A FIG. 11 is a side view of the driving end of the developing cartridge according to the first embodiment of the present invention when viewed from below upward; Figure 6B FIG. 12 is a cross-sectional view of the developing cartridge according to the first embodiment of the present invention taken along a plane parallel to its front-back direction and passing through the driving force receiving member and the driving gear at the same time.

[0050] In this embodiment, the first urging portion 14a is integrally formed with the driving end cap 11. Therefore, Figure 6AAmong them, the first pushing part 14a is hidden together with the driving end cover 11. The counting assembly 5 includes a counting member 51 and a driven body 52 that are combined with each other, and a pushing member 57 for pushing the driven body 52. The driving gear 44 is combined with the driven body 52, and the driving force is sequentially transmitted to the counting member 51 through the driving gear 44 and the driven body 52. The counting member 51 interacts with the detection component in the imaging device during rotation. Under the action of the pushing member 57, the driven body 52 is kept in good combination with the driving gear 44. Further, the counting assembly 5 further includes a support body 53 combined with the driven body 52. Along the left-right direction, the support body 53 and the counting member 51 are respectively located on both sides of the driven body 52. The support body 53, the driven body 52 and the counting member 51 can be collectively referred to as the counting part of the counting assembly 5, and the pushing member 57 can be called the pushing part of the counting assembly 5. Among them, the counting part can be integrally formed or separately formed, and no limitation is made here. In this embodiment, the counting part is installed in a point support manner. As shown in the figure, a plurality of positioning protrusions 17 protrude from the left side wall 1a1. The plurality of positioning protrusions 17 are arranged along the circumferential direction of the counting part / the driven body 52. The inner surface or the outer surface of the circumference of the support body 53 contacts the positioning protrusions 17 to position the counting part in the housing 1. Compared with the existing shaft-hole fitting method, the circumferential area where the support body 53 is positioned is larger, making the rotation smoother.

[0051] Continue as Figure 2 shown, the end cover 11 has an end cover body 110, a first through hole 111, a second through hole 112 and an extension plate 113 provided on the end cover body. The driving force receiving member 3 is exposed through the first through hole 111, and at least the counting member 51 in the counting assembly 5 is exposed through the second through hole 112. Further, a plurality of auxiliary protrusions 114 are also provided on the side of the extension plate 113 facing the housing 1. When the end cover 11 is installed, the auxiliary protrusions 114 are combined with the counting member 51. At this time, both the left and right sides of the counting part are positioned. Therefore, the stability of the counting part during the counting process is ensured.

[0052] As described above, the drive gear 44 is coaxial with the stirring member 23 and is driven by the stirring member 23 to transmit the driving force to the counting assembly 5. That is to say, as long as the drive gear 44 can receive the driving force of the stirring member 23 and at the same time transmit the driving force to the counting assembly 5, for the counting assembly 5, the drive gear 44 can be regarded as the driving member of the counting assembly. Therefore, in the left-right direction, the distance between the drive gear 44 and the left side wall 1a1 bracket and the distance between the counting assembly 5 and the left side wall 1a1 can be shortened to the greatest extent, and the left-right direction dimension of the developing cartridge C corresponding to the drive gear 44 and the counting assembly 5 can be reduced; even if the distance between the counting assembly 5 and the left side wall 1a1 cannot be changed due to the position of the detection component in the imaging device, the driven body 52 can be arranged close to the left side wall 1a1. Specifically, the left side surface 52a of the driven body 52 is close to the left side wall 1a1, and the purpose of reducing the size of the developing cartridge C can also be achieved.

[0053] For the existing developing cartridge, at least one intermediate gear is further provided between the first gear 41 and the drive gear 44, as Figure 6A shown, in the left-right direction, the distance between the first gear 41 and the left side wall 1a1 is greater than the distance between the driven body 52 and the left side wall 1a1. Obviously, for the driving force to be transmitted from the first gear 41 to the driven body 52, the intermediate gear must be set to at least two stages. Correspondingly, the drive gear 44 also needs to be set to two stages. At this time, the size of the developing cartridge in the left-right direction, especially the position corresponding to the intermediate gear and the drive gear 44, cannot be reduced.

[0054] As Figure 6BAs shown, when sectioned along a plane parallel to the front-rear direction and passing through the driving force receiving member and the driving gear simultaneously, a part of the first pushing portion 14a will be retained. The rotation center of the driving force receiving member 3 / the first gear 41 is M, and the rotation center of the stirring member 23 / the driving gear 44 is N. Along the connection line MN of the two rotation centers, the maximum distance between the first gear 41 and the driving gear 44 is S3, the minimum distance is S2, and the distance between the two rotation centers is S1. The first pushing portion 14a is at least located within the area defined by the maximum distance S3. Further, the first pushing portion 14a is located within the area defined by the distance S1 between the two rotation centers, and a part of the first pushing portion 14a faces the area defined by the minimum distance S2. Within the area defined by the minimum distance S2, since no other components are provided, this area forms a vacant area, which is beneficial for the first pushing portion 14a to adjust its position and shape according to requirements within this vacant area. For example, when the positions of the first pushing portions 14a of two types of developing cartridges are slightly different, the production molds of the developing cartridges can be simplified, thereby reducing production costs and management costs; or, when a certain type of developing cartridge requires a greater pushing force, a reinforcing portion for strengthening the strength of the first pushing portion 14a can be provided in the vacant area.

[0055] On the other hand, only one stage of the driving gear 44 needs to be provided, and it is arranged close to the left side wall 1a1. The diameter of the driving gear 44 and its dimension in the left-right direction are both reduced; in this embodiment, the first pushing portion 14a is provided on the driving end cover 11. Along the left-right direction, the overlapping area between the first pushing portion 14a and the driving gear 44 can be reduced or even no overlapping area appears. During the assembly process of the developing cartridge C, the interference between the driving end cover 11 and the driving gear 44 can be reduced or eliminated; when the first pushing portion 14a protrudes from the left side wall 1a1 in the following embodiments, there will be no interference between the driving gear 44 with a reduced diameter and the first pushing portion 14a either. That is to say, on a plane perpendicular to the left-right direction, the first pushing portion 14a and the driving gear 44 do not overlap.

[0056] In actual work, after the counting component 5 completes counting, it needs to be disengaged from the driving gear 44 and remain stationary. One way is to set the driven body 52 as a "semi-tooth gear" having a toothless portion 522 (as Figure 8 shown) and a tooth portion 521. During the counting process, the tooth portion 521 faces the driving gear 44, and when the counting is completed, the toothless portion 522 faces the driving gear 44; the driven body 52 can also be set as a full-tooth gear (as Figure 6BAs shown in the figure, it is the second way to set the counting member 51 and the driven body 52 to be combined in a separable manner. During counting, the counting member 51 can receive the driving force of the driven body 52. When the counting is completed, the counting member 51 is disengaged from the driven body 52. It is the third way to set at least one of the driving gear 44 and the driven body 52 to be movable in a moving direction intersecting the left-right direction. During the counting process, the driving gear 44 and the driven body 52 are combined with each other. When the counting is completed, at least one of the driving gear 44 and the driven body 52 moves in the moving direction so that the two are disengaged from each other.

[0057] The above first way puts forward relatively high requirements for the accuracy of the driven body 52. The second way requires the counting member 51 and the driven body 52 to be set in a split form, which will not only make the assembly process complicated, but more importantly, it is not conducive to maintaining the working stability of the counting assembly 5. When the third way is adopted, preferably, the driving gear 44 is set to be movable in the moving direction. More preferably, the moving direction is orthogonal to the left-right direction. At the same time, since the driving gear 44 and the first pushing portion 14a are also separated from each other, as Figure 6B shown, an interval area S4 is formed between the driving gear 44 and the first pushing portion 14a. Then, the space where the driving gear 44 can move is larger, and the device capable of moving the driving gear 44 will have greater design freedom.

[0058] It should be noted that no other components are provided in the above-mentioned vacant area and interval area, which means that no functional components are provided. For example, protrusions or chutes for supporting a certain component, etc. However, protrusions or grooves provided due to the product mold are allowed.

[0059] [Embodiment 2]

[0060] Figure 7 It is an overall side view when the top cover of the developing cartridge according to the second embodiment of the present invention is hidden and viewed from above to below.

[0061] The difference between this embodiment and Embodiment 1 is that when the driving force is transmitted from the conductive end 104 to the driving end 103, instead of using the stirring member 23, a transmission shaft 24 parallel to the stirring member 23 is used. The rotation axis L24 of the transmission shaft 24 is also parallel to the rotation axis of the developing member 21. Preferably, in the front-rear direction, the transmission shaft 24 is closer to the front 101 than the stirring member 23. The driving gear 44 and the transmission shaft 24 are coaxially arranged, but there is still a vacant area between the driving gear 44 and the first gear 41.

[0062] As Figure 7As shown, the driving gear 44 is separated from the driven body 52 in the counting assembly, and the driving gear 44 is arranged to be movable in the moving direction. Before the developing cartridge C is installed, the driving gear 44 and the driven body 52 are separated from each other. In this way, during the transportation of the developing cartridge C, the driving gear 44 neither touches the first gear 41 nor touches the driven body 52, thereby reducing the risk of damage to the driving gear 44, the first gear 41, and the driven body 52; during the installation of the developing cartridge C or when the developing cartridge C is installed at a predetermined position and starts to work, the driving gear 44 returns to the position where it is combined with the driven body 52, so that the counting assembly 5 can receive the driving force required for counting. After the counting is completed, the driving gear 44 returns to the position where it is separated from the driven body 52 again.

[0063] Similarly, in this embodiment, only one stage of the driving gear 44 is required, and an interval area S4 is also formed between it and the first pressing portion 14a. The interval area and the vacant area provide space for the movement of the driving gear 44, and the device capable of moving the driving gear 44 will have greater design freedom.

[0064] As an alternative, according to the stage of the counting assembly 5, it can be controlled whether the transmission shaft 24 transmits the driving force from the conductive end 104 to the driving end 103. When the counting assembly 5 needs to count, the transmission shaft 24 can transmit the driving force from the conductive end 104 to the driving end. When the counting of the counting assembly 5 is completed, the transmission process of the transmission shaft 24 is cut off, and the cutting can be performed at any position of the transmission shaft 24, or between the transmission shaft 24 and its left gear or between the transmission shaft 24 and its right gear.

[0065] [Embodiment Three]

[0066] Figure 8 is a partial component exploded view of the driving end of the developing cartridge according to Embodiment Three of the present invention; Figure 9A is a side view of the driving end of the developing cartridge according to Embodiment Three of the present invention when viewed from below to above; Figure 9B is a side view of the developing cartridge according to Embodiment Three of the present invention when viewed from left to right.

[0067] Different from the above embodiment, in this embodiment, the driving force received by the driving force receiving member 3 is not transmitted to the conductive end 104, but is transmitted to the counting assembly 5 at the driving end 103. The specific transmission method is that the belt 15 is used as a transmission member to be combined with the driving force receiving member 3 or the first gear 41 and the driving gear 44 respectively.

[0068] Such as Figure 8As shown, the driving force receiving member 3 or the first gear 41 is provided with a driving part engaged with the belt 15, and the driving gear 44 includes a driven part 441 and a gear body 442 engaged with each other, wherein the driven part 441 is farther from the housing 1 than the gear body 442; As Figure 9A As shown, the first pushing part 14a protrudes from the housing 1 to the left side. Along the left - right direction, the belt 15 is farther from the left side wall 1a1 than the first pushing part 14a, and the installation and operation of the belt 15 will not be restricted by the first pushing part 14a.

[0069] Along the front - back direction, the first pushing part 14a is located between the driving part and the driven part 441. Specifically, as Figure 9B shown, the driving part is coaxially arranged with the driving force receiving member 3 / the first gear 41, and the driven part 441 is coaxially arranged with the gear body 442. Therefore, the rotation center of the driving part is M, and the rotation center of the driven part is N. Along the connection line MN of the two rotation centers, the maximum distance between the driving part and the driving gear 44 is S3. Similar to the first embodiment, the first pushing part 14a is at least located within the area defined by the maximum distance S3. Further, the first pushing part 14a is located within the area defined by the distance S1 between the two rotation centers, and a part of the first pushing part 14a is opposite to the area defined by the minimum distance S2. The area defined by the minimum distance S2 forms a vacant area, and this vacant area is beneficial for the first pushing part 14a to adjust its position and shape according to requirements within this vacant area.

[0070] Further, when observing along the left - right direction, the first pushing part 14a at least does not overlap with the gear body 442 of the driving gear 44, and an interval area S4 is formed between them. After the counting is completed, the interruption of the driving force between the driving gear 44 and the counting component 5 can still be achieved by setting at least the gear body 442 of the driving gear 44 to be movable in the moving direction. Preferably, the driving gear 44 is integrally arranged to be movable in a plane perpendicular to the left - right direction. Since the belt 15 is farther from the housing 1 than the first pushing part 14a, when the driving gear 44 moves as a whole, the driven part 441 will not interfere with the first pushing part 14a. As Figure 9B shown, in this embodiment, the driven body 52 is set as a gear with teeth 521 and tooth - missing parts 522 to achieve the interruption of the driving force transmission between the driving gear 44 and the counting component 5.

[0071] [Embodiment Four]

[0072] Figure 10 is a side view of the developing cartridge according to the fourth embodiment of the present invention when observed from its left side to its right side; Figure 11 is a side view of the driving end of the developing cartridge according to the fourth embodiment of the present invention when observed from its bottom side to its top side.

[0073] This embodiment is an alternative implementation of Embodiment 3. The difference is that in this embodiment, the driving part is coaxially arranged with the third gear / powder feeding part gear 43, and a vacant area still needs to be formed between the driving part and the driven part 441. The driving force is transmitted between the two through the belt 15. The plane where the movement direction of the belt 15 is located can be perpendicular to the rotation axis of the driving part or at an angle. As long as the belt 15 can transmit the driving force from the driving part to the driven part 441, considering the aspects of labor saving and the stability of driving force transmission, preferably, the plane where the movement direction of the belt 15 is located is perpendicular to the rotation axis of the driving part.

[0074] As Figure 11 shown, in the left-right direction, the belt 15 is farther from the left side wall 1a1 than the first pushing part 14a, so that the installation and operation of the belt 15 will not interfere with the first pushing part 14a; as Figure 10 shown, the rotation center of the driving part is P, and the driven part 441 is still coaxially arranged with the driving gear 44, and its rotation center is N. Along the connection line PN of the two rotation centers, the maximum distance between the driving part and the driven part 441 is S3, the minimum distance is S2, and the distance between the two rotation centers is S1. The first pushing part 14a is located in the area defined by the maximum distance S3. Further, the first pushing part 14a is located in the area defined by the distance S1. Furthermore, the first pushing part 14a is entirely located in the area defined by the minimum distance S2, that is, the first pushing part 14a is entirely located in the vacant area. At the same time, when observing along the left-right direction, the first pushing part 14a does not overlap with at least the gear body 442 of the driving gear 44, and an interval area S4 is formed between the two. Compared with the above embodiment, the driving gear 44 / gear body 441 in this embodiment has a larger movable space, and the design freedom of the first pushing part 14a is also higher.

[0075] [Embodiment 5]

[0076] Figure 12 is a perspective view of the driving end of the developing cartridge according to Embodiment 5 of the present invention after hiding the driving end cover; Figure 13 is a side view of the developing cartridge according to Embodiment 5 of the present invention when observed from left to right along its left-right direction.

[0077] In this embodiment, the driving force transmission between the driving part directly or the driving force receiving member 3 / the first gear 41 / the third gear 43 provided with the driving part and the driving gear 44 as the driven part is replaced by the gear rod 16. That is, in this embodiment, the transmission member is the gear rod 16. As shown in the figure, the gear rod 16 includes a rod body 163, and a first engaging portion 161 and a second engaging portion 162 respectively located at both ends of the rod body 163. The first engaging portion 161 is used to engage with the driving part, and the second engaging portion 162 engages with the driving gear 44. The rod body 163 does not contact the first pushing portion 14a. Similarly, the rotation axis of the gear rod 16 and the rotation axis of the driving part can be perpendicular to each other or at an angle, as long as the gear rod 16 can transmit the driving force from the driving part to the driven part. Preferably, the rotation axis of the gear rod 16 / the rod body 163 is perpendicular to the rotation axis of the driving part. In the following, the case where the first engaging portion 161 engages with the first gear 41 is taken as an example for description.

[0078] Preferably, both the first engaging portion 161 and the second engaging portion 162 are provided with a plurality of teeth along their rotation directions. The driving gear 44 includes a positioning portion 443 and a gear body 441 that are engaged with each other. The positioning portion 443 is used to position the driving gear 44 relative to the driving end cover 11. The gear body 441 is simultaneously engaged with the second engaging portion 162 and the counting assembly 5. As Figure 13 shown, the distance between the rotation center M of the driving force receiving member 3 and the rotation center N of the gear body 441 is S1. Along the direction of the line connecting the two rotation centers M and N, the minimum distance between the first gear 41 and the gear body 441 is S2, and a vacant area is formed between them. The first pushing portion 14a is entirely located in the vacant area. In the gear body 16, at least the rod body 161 is located in the vacant area. When observed in the left-right direction, the first pushing portion 14a is separated from the gear rod. At the same time, an interval area S4 is also formed between the first pushing portion 14a and the gear body 441. Similar to Embodiment Four, the driving gear 44 / the gear body 441 in this embodiment has a larger movable space, and the design freedom of the first pushing portion 14a is also higher. Alternatively, the first engaging portion 161 of the gear rod can also be engaged with the powder feeding member gear / the third gear 43, and the rotation axis of the powder feeding member gear / the third gear 43 is parallel to the rotation axis of the driving force receiving member.

[0079] [Embodiment Six]

[0080] Figure 14 is a side view of the driving end of the developing cartridge according to Embodiment Six of the present invention when observed from above to below; Figure 15 is a side view of the driving end of the developing cartridge according to Embodiment Six of the present invention when observed from below to above.

[0081] Different from Embodiment 5, in this embodiment, the positioning portion 443 is no longer provided on the driving gear 44. Therefore, the driving gear 44 in this embodiment is the gear body 441 in Embodiment 5, and the second engaging portion 162 of the gear rod 16 is engaged with the driving gear 44. Similar to Embodiment 5, a vacant area is still formed between the first gear 41 and the driving gear 44, and the first pushing portion 14a is entirely located in the vacant area. At the same time, a spacing area S4 is also formed between the first pushing portion 14a and the driving gear 44. Therefore, the driving gear 44 has a larger movable space, and the design freedom of the first pushing portion 14a is also higher.

[0082] Furthermore, since the positioning portion 443 is cancelled, in the left-right direction, the size of the driving gear 44 can be reduced, and correspondingly, the size of the developing cartridge C at the positions corresponding to the driving gear 44 and the gear rod 16 can be decreased.

[0083] The areas defined by the above minimum distance S2, the distance S1, and the maximum distance S3 refer to the directions in space perpendicular to the straight lines MN / PN. The areas corresponding to the distances S1 / S2 / S3. Therefore, the vacant area can be understood as the area corresponding to the minimum distance S2 in the direction perpendicular to the straight lines MN / PN in space, and a part of the transmission members 15 / 16 is located in the vacant area; the spacing area can be understood as the area between the driving gear 44 and the first pushing portion 14a in the overlapping / equal-size part of the driving gear 44 and the first pushing portion 14a when observed in the up-down direction.

[0084] [Embodiment 7]

[0085] Figure 16A and Figure 16B is a perspective view of the counting part in the counting component according to Embodiment 7 of the present invention; Figure 17A is a top view of the counting part when the counting component according to Embodiment 7 of the present invention is observed along its rotation axis; Figure 17B is a bottom view of the counting part when the counting component according to Embodiment 7 of the present invention is observed along its rotation axis.

[0086] As described above, the process of transmitting the driving force from the driving force receiving member 3 to the driving gear 44 no longer uses a gear provided between the driving force receiving member 3 and the driving gear 44. Therefore, compared with the method of transmitting using the gear, the driving gear 44 in the present invention may not be consistent with the predetermined rotation speed, or rather, the rotation speed of the driving gear 44 may be faster or slower than the predetermined rotation speed. Furthermore, the counting component 5 will also be faster or slower than the predetermined rotation speed, making the counting component 5 unable to perform the counting function; or, the diameter of the counting component 5 is reduced to reduce its manufacturing cost. At this time, the rotation speed of the counting component 5 will also become faster.

[0087] To this end, the present invention further provides a speed adjustment component located between the driving gear 44 and the counting component 5, which is used to adjust the rotation speed of the counting component 5 when it is driven by the driving gear 44 according to the counting requirements of the counting component 5, so that the counting component 5 can finally realize its counting function. When the rotation speed of the driving gear 44 is slower than the predetermined rotation speed, at this time, it is necessary to increase the rotation speed of the counting component 5. Commonly, for example, simply increasing the diameter of the driving gear 44 and simultaneously reducing the diameter of the driven body 52 can achieve this.

[0088] In this embodiment, taking the case where the rotation speed of the driving gear 44 is faster than the predetermined rotation speed as an example for description. At this time, the speed adjustment component is actually a delay device, which reduces the average speed of the counting component 5 during the counting process without changing the rotation speed of the driving gear 44, so that the time required for the counting member 51 to rotate a predetermined angle is lengthened during the counting process of the counting component 5.

[0089] As Figure 16A and Figure 16B shown, in this embodiment, the counting part of the counting component 5 includes a counting member 51 and a driven member 52 which are combined with each other. Similarly, the counting member 51 and the driven member 52 can be integrally formed or separately formed. The driven member 52 is used to receive the driving force of the driven part, and then drives the counting member 51 to rotate around the rotation axis L5 in the direction shown by r1, and interacts with the detection component in the imaging device; in this embodiment, the counting member 51 is directly or indirectly arranged on the left side surface 52a of the driven body 52.

[0090] The counting member 51 includes a cylinder 510 connected to the driven body 52 and at least one counting protrusion extending radially outward along the cylinder 510. During the counting process of the counting component 5, the counting protrusion toggles or presses the detection component in the imaging device. In this embodiment, the counting member 51 is provided with a first counting protrusion 511 and a second counting protrusion 512 arranged at intervals along the rotation direction r1; it can be understood that the cylinder 510 can be omitted, and the first counting protrusion 511 and the second counting protrusion 512 are directly combined with the driven body 52 and rotate with the rotation of the driven body 52.

[0091] The counting part further includes a triggered member 55 for driving the driven body 52 to rotate. When the driven body 52 is in a stopped rotation state, the triggered member 55 is triggered by an external trigger member 445 (such as Figure 18After being triggered (as shown), it drives the driven body 52 to continue rotating. Preferably, the triggered member 55 is a force-receiving protrusion combined with at least one of the driven body 52 and the support body 53. More preferably, the triggered member 55 is simultaneously combined with the driven body 52 and the support body 53, and the triggered member 55 protrudes radially outward from the circumferential surface of the support body 53, but the protrusion of the triggered member 55 does not exceed the driven body 52 to prevent unnecessary interference of the triggered member 55. When the counting part is set to rotate around a rotation axis, the counting part further includes a sleeve 54 combined with the driven body 52, and the sleeve 54 extends along the rotation axis L5 from the right surface 52b of the driven body 52.

[0092] The driven body 52 is set as a rotating body that can rotate around the rotation axis L5, and the driving part 521 and the non-driving part 522 are arranged along the circumferential direction of the rotating body. Among them, the driving part 521 is used to receive an external driving force to make the rotating body 52 rotate, and the non-driving part 522 is used to cut off the driving force transmitted to the rotating body 52 to make the rotating body 52 stop rotating. In this embodiment, the driving part 521 is set as a tooth part arranged along the circumferential direction of the rotating body, and the non-driving part 522 is set as a toothless part arranged along the circumferential direction of the rotating body.

[0093] When the counting assembly 5 and the driving gear 44 are disengaged and combined in the first way described in the first embodiment, the driving part 521 at least includes a first driving part 521a and a second driving part 521b arranged at intervals along the rotation direction of the rotating body, and the non-driving part 522 at least includes a first non-driving part 522a and a second non-driving part 522b arranged at intervals along the rotation direction of the rotating body. When the counting assembly 5 is in the counting state, the first driving part 521a, the second driving part 521b and the second non-driving part 522b are opposite to the driving gear 44; when the counting assembly 5 completes counting, the first non-driving part 522a is opposite to the driving gear 44.

[0094] As Figure 17A and Figure 17BAs shown, along the rotation direction r1 of the rotating body, the first driving part 521a, the second non-driving part 522b, the second driving part 521b, and the first non-driving part 522a are arranged adjacent to each other in sequence. During the counting process of the counting component 5, when the second driving part 521b faces the driving gear 44, the rotating body 52 receives a driving force and rotates. As the second non-driving part 522b faces the driving gear 44, the rotating body 52 no longer receives the driving force and stops rotating. Therefore, the second non-driving part 522b can be regarded as an embodiment of the cutting part, which is used to temporarily cut off the driving force transmission between the driving gear 44 and the rotating body 52; when the triggered part 55 is triggered by an external component, the rotating body 52 starts rotating again until the first driving part 521a faces the driving gear 44. Subsequently, the rotating body 52 continues to rotate. When the first non-driving part 522a faces the driving gear 44, the counting component 5 completes the counting and the rotating body 52 remains stationary. The first non-driving part 522a can be regarded as an embodiment of the formal part, which is used to completely cut off the driving force transmission between the driving gear 44 and the rotating body 52. Regardless of whether the driving gear 44 continues to rotate, the rotating body 52 remains stationary.

[0095] Regarding the position of the triggered part 55, based on the inventive concept of the present invention, when the trigger 445 triggers the triggered part 55, it is only necessary that the triggered part 55 can drive the rotating body 52 to start rotating again; as a preferred way, when observing along the rotation axis L5, the triggered part 55 faces the second non-driving part 522b. More preferably, along the rotation direction r1, the triggered part 55 is approximately located at the middle position of the arc corresponding to the second non-driving part 522b, which can ensure that when the triggered part 55 is triggered, the first driving part 521a and the driving gear 44 can be smoothly engaged.

[0096] Figure 18 It is a perspective view of the stirring part gear related to the seventh embodiment of the present invention.

[0097] The driving gear 44 includes a main body 440, teeth 441 arranged along the circumferential direction of the main body, a D-shaped part 444 located inside the main body 440, and a trigger 445 extending radially outward along the circumferential surface of the main body. The stirring part 23 or the transmission shaft 24 is combined with the D-shaped part 444. Therefore, the driving gear 44 can obtain the driving force transmitted from the stirring part 23 or the transmission shaft 24; the trigger 445 is arranged as an extension protrusion capable of pushing the triggered part 55.

[0098] Figure 19A - Figure 19F It is a schematic diagram of the counting process of the counting part in the counting component related to the seventh embodiment of the present invention.

[0099] Before describing the working process of the counting component, first in combination with Figure 16A and Figure 17ADescribe the structure of the second counting projection 512 involved in this embodiment. As shown in the figure, along the rotation direction r1, the first counting projection 511 and the second counting projection 512 are arranged at intervals. The second counting projection 512 is formed as a fan-shaped extension body, having an upper side plate 5121 located upstream, a lower side plate 5122 located downstream, and an arc plate 5123 located between the upper side plate and the lower side plate. The arc plate 5123 has a front end point 512a located at the upstream end and a rear end point 512b located at the downstream end. An arc surface 512c with an arc length of m is formed on the radially outer side of the arc plate 5123.

[0100] The following combines Figure 19A - 19F Describe the counting process of the counting component 5. To more clearly describe the working process of the counting part, only the driving gear 44 and the counting part are shown in the figure.

[0101] When the developing cartridge C is installed in the imaging device but has not started working, the counting projection and the detection component 9 in the imaging device may or may not be in contact with each other. Regardless of their relative positions, the speed adjustment component involved in the present invention is applicable. Figure 19A In, before the developing cartridge C starts working, the first counting projection 511 abuts against the detection component 9, and the tooth 441 of the driving gear 44 meshes with the second driving part 521b. When the driving force of the driving force receiving member 3 causes the driving gear 44 to start rotating in the direction shown by r2, the rotating body 52 is driven to rotate in the direction shown by r1, and the detection component 9 continuously interacts with the first counting projection 511.

[0102] As Figure 19B shown, when the first counting projection 511 moves to be disengaged from the detection component 9, the detection component 9 starts to abut against the front end point 512a of the second counting projection 512, and the driving gear 44 is opposite to the second non-driving part / cutting part 522b. At this time, the rotating body 52 remains stationary. Correspondingly, the second counting projection 512 and the detection component 9 always remain in contact. During the process of the driving gear 44 meshing with the second driving part 521b, the trigger 445 and the triggered part 55 both move towards the area where the driving gear 44 and the rotating body 52 are opposite, but the trigger 445 reaches the area before the triggered part 55. Therefore, the triggered part 55 will not interfere with the trigger 445.

[0103] As the driving gear 44 continues to rotate in the direction shown by r2, as Figure 19C shown, along the rotation direction r1, the trigger 445 reaches upstream of the triggered part 55, and then, the triggered part 55 is triggered, and the rotating body 52 starts to rotate again in the direction shown by r1, as Figure 19D and Figure 19EAs shown, the driving gear 44 starts to engage with the first driving portion 521a, and the arc surface 512c abuts against the detecting member 9 until the driving gear 44 is opposite to the first non-driving portion / formal 522a, as Figure 19F shown, the counting assembly 5 finishes counting and stops rotating, and the driving gear 44 still rotates in the direction shown by r2. At this time, the detecting member 9 disengages from the rear end point 512b of the second counting projection 512.

[0104] When the driving gear 44 starts to be opposite to the cutting portion 522b or when the driving gear 44 just disengages from the second driving portion 521b, the trigger 445 is located at Figure 19B the first position shown. As the driving gear 44 rotates, when the trigger 445 reaches the position where it starts to trigger the triggered member 55, the trigger 445 is located at Figure 19C the second position shown. To clearly describe the first position and the second position, the trigger 445 in the first position and the trigger 445 in the second position are both shown in Figure 19C wherein, the trigger 445 indicated by the dotted line is the one in the first position, and the trigger 445 indicated by the solid line is the one in the second position. Along the rotation direction r1, the trigger 445 at the two positions is respectively on both sides of the triggered member 55, and along the rotation direction r2, during the process that the trigger 445 rotates from the first position to the second position, its rotation angle is β, β < 360°, and the second counting projection 512 always remains in contact with the detecting member 9, thus simulating the process that the detecting member 9 always interacts with the second counting projection 512.

[0105] During the process of the driving gear 44 engaging with the first driving portion 521a, the detecting member 9 abuts against the arc surface 512c. When the driving gear 44 is about to reach the position opposite to the first non-driving portion 522a, the detecting member 9 reaches the rear end point 512b of the arc surface 512c, and when the driving gear 44 is opposite to the first non-driving portion 522a, the detecting member 9 disengages from the arc surface 512c, and at this time, the counting is completed.

[0106] It can be known from this that in this embodiment, the duration of the detecting member 9 abutting against the second counting projection 512 is equal to the rotation angle α of the driving body 52 (as Figure 17AThe sum of the time required for the front end point 512a and the rear end point 512b to move as shown in the figure and the time required for the driving gear 44 to rotate by an angle β, where the angle α is the included angle between the front end point 512a and the rear end point 512b, corresponding to the arc length of the arc-shaped plate 5123 extending in the direction shown by r1, and the angle β corresponds to the arc length corresponding to the trigger member 445 rotating from the first position to the second position. For the existing counting member, in this embodiment, the time when the second counting protrusion 512 abuts against the detection member 9 is extended, and the extended time is the time required for the driving gear 44 to rotate by the angle β. Therefore, the second non-driving part / cutting part 522b can be regarded as an embodiment of a time delay device, and the cutting part 522b is used to temporarily cut off the driving force received by the rotating body 52 so that the rotating body 52 remains stationary to achieve time delay; the triggered member 55 is used to be triggered by an external trigger member 445 so that the rotating body 52 obtains the driving force again and rotates. Therefore, the triggered member 55 can be regarded as an embodiment of a restart device; the process of the rotating body 52 from being temporarily cut off the driving force until obtaining the driving force again is the time delay stage. During this time delay stage, the counting assembly 5 is still in the counting state. Specifically, the detection member 9 remains in contact with the second counting protrusion 512; thus, even if the rotation speed of the driving gear 44 becomes faster, the purpose of ensuring that the counting assembly 5 realizes the counting function can be achieved without changing the structure of the second counting protrusion 512.

[0107] For the second driving part 521b, before the developing cartridge C starts to work, it is more beneficial for the tooth 441 of the driving gear to be in the position where it is combined with the upstream end of the second driving part 521b to reduce the arc length of the second driving part 521b. And when the tooth 411 is disengaged from the downstream end of the second driving part 521b, the detection member 9 has at least disengaged from the first counting protrusion 511 or has reached the position where it abuts against the second counting protrusion 512. That is to say, the arc length of the second driving part 521b needs to be at least such that the first counting protrusion 511 rotates to disengage from the detection member 9. When the second driving part 521b is a tooth, the minimum number of teeth is 6. In this way, when the driving gear 44 is disengaged from the second driving part 521b or when the driving gear 44 is opposite to the cutting part 522b, the first counting protrusion 511 disengages from the detection member 9. Preferably, the minimum number of teeth is 7, which can prevent the detection member 9 from reaching the position where it is abutted by the second counting protrusion 512 although it has disengaged from the first counting protrusion 511 due to manufacturing errors. That is to say, the position accuracy requirements for the first counting protrusion 511 and the second counting protrusion 512 are reduced.

[0108] Based on the technical concept of this embodiment, setting the time delay device on the rotating body 52 can achieve the purpose of slowing down the rotation speed of the counting assembly 5 / rotating body 52 / counting protrusions 511 / 512, and further ensure that the counting function of the counting assembly 5 is realized.

[0109] When only one trigger member 445 is provided and the relative position of the driving gear 44 remains unchanged, the position and shape of the counting protrusions can be set according to the requirements of the counting process of the counting component 5 for the total duration and / or the interval duration during which the detection component 9 is abutted. For example, when the total duration during which the second counting protrusion 512 in this embodiment abuts against the detection component 9 needs to be further increased / decreased, it can be achieved by extending / shortening the arc length of the arc surface 512c; when the total duration during which the first counting protrusion 511 in this embodiment abuts against the detection component 9 needs to be increased, an arc surface that can abut against the detection component 9 can be provided on the first counting protrusion 511. Correspondingly, the number of teeth of the second driving part 521b needs to be increased, or it can be achieved by shortening the arc length of the second driving part 521b. At this time, the cutting part 522b has been opposite to the driving gear 44, but the first counting protrusion 511 still remains in an abutting state with the detection component 9. A cutting part can also be provided upstream of the second driving part 521b, so that the driving gear 44 rotates idly until the trigger member 445 triggers the triggered member 55. Further, if the total duration during which the second counting protrusion 512 abuts against the detection component 9 does not need to be changed, there will be no need to additionally provide a cutting part between the first driving part 521a and the second driving part 521b. The first driving part 521a and the second driving part 521b are connected as a whole, and the driving gear 44 is combined with the first driving part 521a and the second driving part 521b until the counting is completed. At this time, only one driving part and one cutting part are provided on the circumference of the rotating body 52.

[0110] When the shape of the counting protrusions 511 / 512 does not change, but the duration during which the counting protrusions abut against the detection component 9 needs to be reduced, one or more trigger members can be additionally provided on the driving gear 44. When the driving gear 44 rotates, the additionally provided trigger members will trigger the triggered member 55 earlier than the trigger member 445 in this embodiment, and the rotating body 52 can also be converted from the state of being temporarily cut off from the driving force to the state of receiving the driving force again earlier, and the total duration during which the second counting protrusion 512 abuts against the detection component 9 is reduced.

[0111] For the counting member 51 having multiple counting protrusions, if it is necessary to control the interval duration between two adjacent counting protrusions abutting against the detection component 9 to become longer, it can be achieved by reducing the arc length of the second driving part 521b. At this time, the duration during which the second driving part 521b receives the driving force from the driving gear 44 becomes shorter. That is to say, the arc length of the second driving part 521b only needs to ensure that the previous counting protrusion rotates to disengage from the abutment with the detection component 9, and it is not necessary to make the latter counting protrusion reach the position of abutting against the detection component 9.

[0112] [Embodiment VIII]

[0113] Figure 20It is a perspective view of the counting part in the counting component involved in the eighth embodiment of the present invention.

[0114] Based on the seventh embodiment, this embodiment will further describe the counting part provided with a plurality of cutting parts, that is, the delay device in this embodiment includes a plurality of cutting parts. As Figure 20 shown, the structure of the counting member 51 in this embodiment remains unchanged, but two cutting parts are provided on the rotating body 52, so that the total counting time of the counting member 51 is longer. Therefore, this embodiment can also be considered as another implementation manner of extending the total contact time between the second counting protrusion 512 and the detection component 9 in the seventh embodiment.

[0115] Along the rotation direction r1, the rotating body 52 includes a first driving part 521a, a second driving part 521b, a third driving part 521c, a first non-driving part 522a, a second non-driving part 522b, and a third non-driving part 522c. When the counting component 5 is in the counting state, the driving gear 44 is opposite to at least one of the first driving part 521a, the second driving part 521b, the third driving part 521c, the second non-driving part 522b, and the third non-driving part 522c. When the counting of the counting component 5 is completed, the driving gear 44 is opposite to the first non-driving part 522a. Therefore, the regions where the first driving part 521a, the second driving part 521b, the third driving part 521c, the second non-driving part 522b, and the third non-driving part 522c are located can be called the counting regions of the rotating body 52, and the region where the first non-driving part 522a is located can be called the non-counting region of the rotating body 52; similarly, for the seventh embodiment, the regions where the first driving part 521a, the second driving part 521b, and the second non-driving part 522b are located can be called the counting regions, and the region where the first non-driving part 522a is located can be called the non-counting region. Along the rotation direction of the rotating body 52, the counting region and the non-counting region are adjacently arranged on the circumference of the rotating body.

[0116] It should be noted that the counting region and the non-counting region here are divided according to whether the counting component 5 is in the counting state, rather than according to the shape or arc length of each driving part and non-driving part. That is to say, even if the arc length of the first driving part 521a is set such that the counting component 5 has completed counting, but the driving gear 44 is still opposite to / engaged with the first driving part 521a, then the part of the first driving part 521a that has not been opposite to / engaged with the driving gear 44 should still be regarded as a part of the first non-driving part 522a.

[0117] In the counting area, along the rotation direction r1, the second driving part 521b, the second non-driving part 522b, the third driving part 521c, the third non-driving part 522c, and the first driving part 521a are arranged in sequence from upstream to downstream. When the driving gear 44 faces / meshes with the second driving part 521b, the third driving part 521c, and the first driving part 521a, the rotating body 52 can receive a driving force and rotate. When the driving gear 44 faces / meshes with the second non-driving part 522b and the third non-driving part 522c, the rotating body 52 cannot receive a driving force and remains stationary. Therefore, the second non-driving part 522b and the third non-driving part 522c can be regarded as the first cutting part and the second cutting part respectively.

[0118] As Figure 20 shown, the restart device in this embodiment includes a first trigger 55 and a second trigger 56 that face the first cutting part 522b and the second cutting part 522c respectively. Among them, the first trigger 55 is used to make the rotating body 52 rotate again until the driving gear 44 faces / meshes with the third driving part 521c after being triggered, and the second trigger 55 is used to make the rotating body 52 rotate again until the driving gear 44 faces / meshes with the first driving part 521a after being triggered. Along the rotation direction r1, the third driving part 521c is located between the first trigger 55 and the second trigger 56.

[0119] As described above, multiple cutting parts are provided in the counting area of this embodiment, so that during the counting process of the counting component 5, the total duration of the contact / non-contact between the counting protrusion and the detection component 9 is lengthened, and the counting function of the counting component 5 can be successfully realized.

[0120] [Embodiment Nine]

[0121] Figure 21 is a perspective view of the counting part in the counting component related to Embodiment Nine of the present invention.

[0122] This embodiment is further evolved on the basis of Embodiment Eight. The counting member 51 in this embodiment still has a first counting protrusion 511 and a second counting protrusion 512 that are separated from each other along the rotation direction r1. Compared with Embodiment Seven, the second counting protrusion 512 is set to have the same shape as the first counting protrusion 511, rather than an arc-shaped plate extending along the rotation direction r1. In this embodiment, for the two counting protrusions, the counting duration of the first counting protrusion 511 is the same as that of the second counting protrusion 512, but the delay device in the counting area will make the interval duration of the contact between the first counting protrusion 511 and the second counting protrusion 512 and the detection component 9 longer during the counting process of the counting component 5. Therefore, this embodiment can be regarded as another implementation manner in Embodiment Seven for lengthening the interval duration of the contact between two adjacent counting protrusions and the detection component 9.

[0123] [Embodiment Ten]

[0124] Figure 22 It is a top view when the counting component and the driving component in Embodiment Ten of the present invention are combined.

[0125] In this embodiment, taking the reduction of the diameter of the counting component 5 as an example for description. At this time, the diameters of the rotating body 52 and the counting member 5 are both reduced, and their rotation speeds are increased. In order to enable the counting component 5 with a reduced diameter to be used in the developing cartridge applicable to the counting component before the diameter reduction, similarly, the above-mentioned delay device also needs to be provided for the counting component 5.

[0126] As Figure 22 shown, the first driving part 521a, the second non-driving part 522b / delay device / cutting part, the second driving part 521b and the first non-driving part 522a are sequentially arranged on the circumference of the rotating body 52 along the rotation direction r1 of the rotating body 52. The second non-driving part 522b is located between the first driving part 521a and the second driving part 521b. Since the rotation speed of the rotating body 52 is increased, when the second driving part 521b is set as a gear, the number of teeth can be reduced to no less than 2. That is to say, when the number of teeth of the second driving part 521b is 2, as the rotating body 52 rotates from the position opposite to the upstream of the second driving part 521b to the position opposite to the downstream of the second driving part 521b, the first counting protrusion 511 can be disengaged from the detection component 9; due to the setting of the cutting part 522b, the counting duration of the counting component 5 is lengthened.

[0127] It can be seen from this that the minimum value of the number of teeth of the second driving part 521b can vary within the range of 2 - 6, and its specific quantity can vary according to the diameter change of the rotating body 52.

[0128] When the counting component 5 described in the above Embodiment Seven - Embodiment Nine completes counting, the rotating body 52 no longer receives the driving force through the first non-driving part 522a provided therein being opposite to / meshing with the driving gear 44, that is, the first disengagement and combination method recorded in Embodiment One. For Embodiment Seven - Embodiment Nine, the arc length of the first non-driving part 522a is not less than the circumference when the triggering part 445 rotates with the driving gear 44. Therefore, when the driving gear 44 is opposite to / meshing with the first non-driving part 522a, even if the driving gear 44 continues to rotate, the triggering part 445 will not trigger the triggered part 55 to cause the rotating body 52 to continue to rotate.

[0129] However, when the counting component 5 finishes counting and the rotating body 52 and the driving gear 44 adopt the second or third disengagement and engagement method described in the first embodiment, the specific structure of the first non-driving portion 522a will become unimportant. At this time, the first non-driving portion 522a can be set as the toothless portion described above, or can be set as a toothed portion. However, regardless of the specific structure of the first non-driving portion 522a, when the counting component 5 finishes counting, the counting member 51 and the rotating body 52 are disengaged. Even if the rotating body 52 is still driven by the driving gear 44 to rotate, the counting member 51 will remain stationary. Or, at least one of the rotating body 52 and the driving gear 44 moves in a direction intersecting the left-right direction. At this time, the rotation center of the driving gear 44 and the rotation center of the rotating body 52 move away from each other. Even if the driving gear 44 continues to rotate, the rotating body 52 cannot receive the driving force and remains stationary.

[0130] [Beneficial effects]

[0131] As described above, when adopting the driving force transmission method described in the first embodiment and the second embodiment, the driving force received by the driving force receiving member 3 from the imaging device is first transmitted from the driving end 103 to the conductive end 104, and then from the conductive end 104 to the driving end 103. Although gears for transmitting the driving force also need to be provided at the conductive end 104, the gear density on the side where the driving end 103 is located is effectively reduced. Whether the developing cartridge C is assembled manually or by machine, gears can be installed on both sides at the same time. Compared with the existing developing cartridge where the gear density on the side where the driving end is located is relatively large and there is overlap between the gears in the left-right direction, the method of installing gears on both sides of the developing cartridge can instead improve the assembly efficiency.

[0132] The counting component 5 needs to be driven during counting and does not need to be driven when counting is completed. When using the transmission shaft 24 parallel to the stirring frame 23 to transmit the driving force from the conductive end 104 to the driving end 103, that is to say, the driving force required by the counting component 5 no longer comes from the stirring member 23. The load when the stirring member 23 rotates will not suddenly decrease. Therefore, the working stability of the stirring member 23 is ensured. On the other hand, when the counting component 5 finishes counting, the driving force transmission of the transmission shaft 24 can be set to be interrupted. This interruption of the driving force transmission will not affect the operation of the stirring member 23, and there are many choices for the interruption position. For example, the interruption position can be at the conductive end 104, can also be at the driving end 103, or can also be on the body of the transmission shaft 24.

[0133] In the embodiments of the present invention, a void area is formed between the driving part directly or the driving force receiving member 3 / the first gear 41 / the third gear 43 provided with the driving part and the driving gear 44 that is directly used as the driven part or provided with the driven part. Along the front-rear direction, the driving part is located in front of the driven part, and the driving force is transmitted between the two in a non-gear-engagement manner. The position of the counting component 5 can be adjusted in the void area according to requirements, or the radial dimension of the driven body 52 can be adjusted according to requirements. Correspondingly, the position of the driving gear 44 can also be adjusted in the void area, so that the developing cartridge C can be made universal for multiple models.

[0134] The void area provides sufficient space for the movement of the driving gear 44. As described above, the interruption of the driving force transmission between the driving gear 44 and the counting component 5 preferably causes at least one of the driving gear 44 and the driven body 52 to move in the moving direction. Since the driven body 52 is a part of the counting component 5, and the counting component 5 also needs to interact with the detection component in the imaging device, it is more preferable to cause the driving gear 44 to move in the moving direction. The existence of the void area can enable the control device for controlling the movement of the driving gear 44 to have a higher design freedom.

[0135] As described above, at least a part of the first pushing portion 14a is located in the void area, which can not only enable the first pushing portion 14a to adjust its position in the developing cartridge C according to the position of the external pushing force applying member, but also enable a stronger reinforcing portion to be provided for the first pushing portion 14a. For example, when the first pushing portions 14a of two models of developing cartridges are only slightly different in position, the existence of the void area can make the developing cartridge universal. For another example, when the pushing force applied by the pushing force applying member applicable to a certain model of developing cartridge is relatively large, the designer can make full use of the void area to design a reinforcing portion for the first pushing portion 14a. On the contrary, when the pushing force applied by the pushing force applying member is relatively small, the designer can also make full use of the void area to design a dispersing portion for the first pushing portion 14a to disperse the pushing force.

[0136] The void area also simplifies the structure of the driving gear 44. Whether it is coaxially arranged with the stirring member 23 or not, the driving gear 44 only needs to be provided with one stage. Especially in the above-mentioned first embodiment and second embodiment, as described above, along the left-right direction, the sizes of both the driving gear 44 and the counting component 5 can be reduced. Therefore, the sizes of the corresponding positions of the developing cartridge C and the driving gear 44 and the counting component 5 can also be reduced accordingly.

[0137] For an embodiment in which the driving force is transmitted from the driving part to the driven part by means of a belt 15 or a gear rod 16, similarly, a vacant area is still formed between the driving force receiving member 3 / the first gear 41 / the third gear 43 as the driving part and the driving gear 44 as the driven part. On the one hand, there is no need to provide a gear for transmitting the driving force at the conductive end 104. On the other hand, the existence of the vacant area can also make the counting component 5 universal, provide space for the driving gear 44 to move, and enable the first pushing part 14a to have a higher design freedom.

[0138] When the rotational speed of the driving gear 44 is faster or slower than the expected rotational speed, by arranging a speed regulating component in the developing cartridge, the counting component 5 can smoothly complete the counting process without changing the structures of the driving gear 44 or the counting member 51. At the same time, the structure of the speed regulating component can be adjusted according to the counting requirements of the counting member 51 in the target developing cartridge, so that the same counting member 51 can be universal for multiple models.

[0139] For a developing cartridge in which the speed regulating component is set as a delay device, the delay device is directly arranged on the rotating body 52. There is no need to reserve additional space in the developing cartridge C for arranging the delay device. The overall structure of the developing cartridge C is simplified, and the delay device can also be integrally formed with the rotating body 52, so that the delay device can be installed along with the installation of the rotating body 52, without increasing the installation steps of the developing cartridge.

[0140] Specifically, the delay device in the present invention realizes the delay by separating and combining the rotating body 52 from the driving member 44 so that the rotating body 52 stays for a predetermined time, and then the rotating body 52 is combined with the driving member 44 again by the restarting device. From this, it can be seen that during the entire counting process of the counting component 5, the average speed of the counting component 5 is reduced, and the time required for the counting member to rotate a predetermined angle is lengthened, but the rotational speed of the driving gear 44 is not changed, and the rotational speed of the rotating body 52 during rotation is not changed either. This enables the structure of the driving gear 44 not to be changed, and the counting component 5 only needs to add a delay device that can be integrally formed with the rotating body 52, and the overall cost of the developing cartridge C can be controlled.

Claims

1. A developing cartridge, applicable to an imaging device provided with a detection component, the developing cartridge includes a housing and a driving force receiving member, a driving member and a counting component located at the end of the housing, wherein, The driving force receiving member sequentially transmits the driving force received from the outside to the driving member and the counting assembly; the counting assembly includes a rotating body and a counting member that are combined with each other, and the rotating body drives the counting member to interact with the detecting member under the drive of the driving member; It is characterized in that the rotating body is provided with a delay device, and the driving member is provided with a triggering member, and the delay device is used to extend the counting duration of the counting member; The extended counting duration is the duration required for the triggering member to rotate from the first position to the second position; When the delay device starts to be opposite to the driving member, the triggering member is in the first position, and when the delay device is no longer opposite to the driving member, the triggering member is in the second position.

2. The developing cartridge according to claim 1, wherein, The angle through which the triggering member rotates from the first position to the second position is less than 360°.

3. The developing cartridge according to claim 2, characterized in that, The triggering member in the second position can force the rotating body to rotate until the delay device is no longer opposite to the driving member.

4. The developing cartridge according to claim 1, wherein When the delay device is opposite to the driving member, the rotating body remains stationary and the counting member is in a counting state.

5. The developing cartridge according to claim 4, wherein The counting member is provided with at least one counting protrusion, and when the delay device is opposite to the driving member, the counting protrusion continuously abuts against the detecting member.

6. The developing cartridge according to claim 5, wherein, The rotating body is further provided with a triggered member, and the triggered member can be triggered by the triggering member to drive the rotating body to rotate again.

7. The developing cartridge according to claim 6, wherein When observed along the rotation axis of the rotating body, the triggered member is opposite to the delay device.

8. The developing cartridge according to claim 6, wherein, The triggered member extends in the radial direction of the rotating body, and the extension of the triggered member does not exceed the rotating body.

9. The developing cartridge according to claim 4, wherein, The counting member is provided with at least two counting protrusions, and the two counting protrusions are arranged at intervals along the rotation direction of the counting member. When the delay device is opposite to the driving member, the detecting member is located between the two counting protrusions.

Images