CN218728622U - Developing box - Google Patents

Abstract

The utility model relates to a developing box which comprises a shell, a developing part and a supplying part, wherein the developing part is rotatably arranged on the shell and comprises a developing part shaft and a developing part roller part coated on the surface of the developing part shaft; the developing cartridge includes a driving force receiving member that receives a driving force and transmits the driving force to the counting mechanism through the supplying member shaft or the developing member shaft; the counting mechanism comprises a driving piece, an intermediate piece, a counting gear and a shifting piece, wherein the driving piece is matched with the shaft hole of the supplying piece shaft or the shaft hole of the developing piece shaft, transmits driving force to the counting gear through the intermediate piece and drives the shifting piece to directly or indirectly act on the equipment; a second end surface of the supplying member shaft or the developing member shaft is closer to the supplying member roller portion or the developing member roller portion than the first end surface of the casing in the first direction; therefore, the driving force can be stably and efficiently transmitted to the counting mechanism, and the parameter information generated by the interaction of the counting mechanism and the detected piece is more accurate.

Description

Developing box

The present patent application claims priority from a prior application entitled "developer cartridge", application number 202222353134.4, filed by the present applicant on 09/05/2022, the entire contents of which are cross-referenced in the present application.

Technical Field

The utility model relates to an electrophotographic image forming field especially relates to a detachably installs the development box in electrophotographic image forming apparatus.

Background

The developing box is a container which can be detachably mounted on an electronic photographic imaging device, and contains carbon powder required for developing, the service life of each developing box is closely related to the amount of the carbon powder, so that a user can know the information of the amount of the remaining carbon powder before the carbon powder is completely consumed, a counting mechanism is arranged in the developing box, a detected piece capable of interacting with the counting mechanism is arranged in the imaging device, when the developing box is mounted on the imaging device for the first time and starts to work, the imaging device judges the information of the model, the total service life and the like of the developing box by knowing various parameters generated when the counting mechanism interacts with the detected piece, such as the number of times of the detected piece being stirred, the stirring time length of each time, the stirring interval time length and the like, therefore, in the subsequent work of the imaging device, the service life information of the developing box, which is used by the imaging device, is compared with the known total service life information, and the user can be informed at a preset moment.

In order to fully utilize the space at the two ends of the developing cartridge in the longitudinal direction, a developing cartridge is provided with a driving force receiving member and a counting mechanism at the two ends of the developing cartridge in the longitudinal direction, the driving force is used for receiving the driving force from the image forming device, and the counting mechanism is driven by the driving force to work.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a can receive stable and efficient transmission to the developing cartridge of counting mechanism of driving force that the piece was received to the driving force to ensure that counting mechanism and the produced each item parameter information of detected piece interact are more accurate.

The developing device comprises a developing box, a developing roller and a supplying part, wherein the developing box is detachably installed in an imaging device provided with a detected part, the developing box comprises a shell for accommodating carbon powder, and a developing part and a supplying part which are rotatably installed in the shell, the supplying part is used for supplying the carbon powder to the developing part, the developing part comprises a developing part shaft and a developing part roller part coated on the surface of the developing part shaft, and the supplying part comprises a supplying part shaft and a supplying part roller part coated on the surface of the supplying part shaft; the developing cartridge further includes a driving force receiving member at one end of the housing in the first direction, and a counting mechanism and a second end cap at the other end, respectively, at least a portion of the counting mechanism being exposed from the second end cap, the driving force receiving member receiving a driving force from the image forming apparatus being transmitted to the counting mechanism through the supplying member shaft or the developing member shaft; the counting mechanism comprises a driving part, an intermediate part, a counting gear and a stirring part driven by the counting gear, wherein the driving part, the intermediate part, the counting gear and the stirring part are mutually interacted; the housing has a first end surface on the same side as the counting mechanism, and the supply member shaft or the developing member shaft has a second end surface on the same side as the counting mechanism, the second end surface being closer to the supply member roller portion or the developing member roller portion than the first end surface in the first direction.

The cylinder that the driving piece includes driving piece gear and is connected with the driving piece gear, the cylinder has the irregular hole of coaxial setting, irregular hole is used for carrying out the shaft hole cooperation with supply spare axle or development axle, the driving piece gear is used for and carries out drive power transmission to middleware with middleware interact.

The intermediate member has the intermediate member axis parallel with first direction, the intermediate member includes intermediate member through-hole, first gear part and second gear part, the intermediate member through-hole is used for installing with the installation axle cooperation of second end cover, first gear part is the bevel gear, and along first direction, the main aspects diameter of first gear part is less than the diameter of second gear part, first gear part is closer to the casing than second gear part, second gear part is used for meshing in order to receive drive power with the driving piece gear, first gear part is used for meshing with the counter gear and transmits drive power to the counter gear.

The rotation axis of at least one of the counting gear and the stirring piece is parallel to the third direction, the counting gear is a bevel gear, and the counting gear and the stirring piece are integrally formed.

The middleware axis of middleware is parallel with first direction, the middleware has middleware through-hole, first gear part and second gear part, the middleware through-hole is used for installing with the installation axle cooperation of second end cover, first gear part includes that a plurality of transmission that incline for first direction are protruding, along first direction, the diameter of first gear part is less than the diameter of second gear part, first gear part is closer to the casing than second gear part, second gear part is used for with driving piece gear engagement in order to receive drive power, first gear part is used for meshing with the count gear and transmits drive power to the count gear.

The counting gear is provided with a counting gear base body comprising a first end face and a second end face, a counting gear through hole, a gear part positioned on the first end face and a tooth lacking part positioned on the first end face, wherein the counting gear through hole is used for interacting with the mounting column, the gear part comprises at least one transmission protrusion inclined relative to the radial direction, the gear part is used for being meshed with the first gear part, the tooth lacking part is used for being opposite to the first gear part, the counting gear further comprises one or more connecting openings arranged on the second end face, and the connecting openings are used for interacting with the stirring piece.

The poking piece comprises a poking protrusion and a connecting protrusion, an elastic piece is arranged between the counting gear and the poking piece, one end of the elastic piece is abutted to the poking piece, the other end of the elastic piece is abutted to the counting gear, when the first gear part of the intermediate piece is opposite to/meshed with the gear part of the counting gear, the elastic piece is compressed in the third direction, the connecting opening is matched with the connecting protrusion, and when the first gear part of the intermediate piece is opposite to the gear-lacking part of the counting gear, the connecting opening is disengaged from the connecting protrusion in the third direction under the action of elastic force.

The middleware axis of middleware is parallel with first direction, the middleware has middleware through-hole, first gear portion and second gear portion, the middleware through-hole is used for installing the installation axle cooperation installation with the second end cover, first gear portion includes that a plurality of transmissions that extend along first direction are protruding, along first direction, the diameter of first gear portion is less than the diameter of second gear portion, first gear portion is closer to the casing than second gear portion, second gear portion is used for with driving piece gear engagement in order to receive drive power, first gear portion is used for meshing with the count gear and transmits drive power to the count gear.

The counting gear is provided with a counting gear base body comprising a first end face and a second end face, a counting gear through hole, a gear part positioned on the first end face and a tooth lacking part positioned on the first end face, wherein the counting gear through hole is used for interacting with the mounting column, the gear part comprises at least one transmission protrusion parallel to the radial direction, the gear part is used for being meshed with the first gear part, the tooth lacking part is used for being opposite to the first gear part, the counting gear further comprises one or more connecting openings arranged on the second end face, and the connecting openings are used for interacting with the stirring piece.

The poking piece comprises a poking protrusion and a connecting protrusion, an elastic piece is arranged between the counting gear and the poking piece, one end of the elastic piece is abutted to the poking piece, the other end of the elastic piece is abutted to the counting gear, when the first gear part of the intermediate piece is opposite to/meshed with the gear part of the counting gear, the elastic piece is compressed in the third direction, the connecting opening is matched with the connecting protrusion, and when the first gear part of the intermediate piece is opposite to the gear-lacking part of the counting gear, the connecting opening is disengaged from the connecting protrusion in the third direction under the action of elastic force.

Drawings

Fig. 1 and 2 are perspective views of a conventional developing cartridge.

Fig. 3 is a sectional view of the related art developing cartridge cut along a plane perpendicular to the first direction through a middle portion of the first direction.

Fig. 4 is a perspective view of a partial structure of the developing cartridge according to the present invention.

Fig. 5 is a partially exploded view of a counting end of a developing cartridge according to an embodiment of the present invention.

Fig. 6A to 6C are perspective views of a second end cap according to an embodiment of the present invention.

Fig. 7 is a perspective view of a counting mechanism according to an embodiment of the present invention.

Fig. 8 is a perspective view of a driving member according to an embodiment of the present invention.

Fig. 9A and 9B are perspective views of an intermediate member according to a first embodiment of the present invention.

Fig. 10A and 10B are perspective views of a counter gear and a toggle member according to a first embodiment of the present invention.

Fig. 11 is a perspective view of a detection member according to a first embodiment of the present invention.

Fig. 12 is a perspective view of a mounting post according to a first embodiment of the present invention.

Fig. 13A is a view of a developing cartridge according to an embodiment of the present invention, when viewed in a second direction, after a part of the developing cartridge is hidden.

Fig. 13B is a schematic diagram of a second end cap and a counting mechanism according to an embodiment of the present invention.

Fig. 14 is a perspective view of an intermediate member according to a second embodiment of the present invention.

Fig. 15A and 15B are perspective views of a counter gear and a toggle member according to a second embodiment of the present invention.

Fig. 16 is a perspective view of an intermediate member according to a third embodiment of the present invention.

Fig. 17 is a perspective view of the counter gear and the toggle member according to the third embodiment of the present invention.

Fig. 18 is a perspective view of a partial structure of a developing cartridge according to a fourth embodiment of the present invention.

Fig. 19A to 19C are perspective views of a second end cap according to a fourth embodiment of the present invention.

Fig. 20 is a perspective view of a counter mechanism according to a fourth embodiment of the present invention.

Fig. 21, 22A, and 22B are perspective views of an intermediate member according to a fourth embodiment of the present invention.

Fig. 23 is a perspective view of the counter gear and the toggle member according to the fourth embodiment of the present invention.

Fig. 24 is a perspective view of a detector according to a fourth embodiment of the present invention.

Fig. 25 is a perspective view of a mounting post according to a fourth embodiment of the present invention.

Fig. 26 is a schematic view of a second end cap and a counting mechanism according to a fourth embodiment of the present invention.

Detailed Description

In order to better understand the technical solution of the present invention, the structure of the existing developing cartridge is described with reference to fig. 1, fig. 2 and fig. 3.

Fig. 1 and 2 are perspective views of a conventional developing cartridge; fig. 3 is a sectional view of the related art developing cartridge cut along a plane perpendicular to the first direction through a middle portion of the first direction.

As shown in fig. 1, 2 and 3, the developing cartridge 10 has a first direction, a second direction and a third direction which are crossed with each other, the developing cartridge 10 includes a housing 11 accommodating toner T, and a developing member 12, a supplying member 13 and an agitating member 14 rotatably mounted to the housing 11, the agitating member 14 is for agitating the toner and conveying the toner toward the supplying member 13, and the supplying member 13 supplies the toner toward the developing member 12 which is in contact with the supplying member 13; the developing member 12, the supplying member 13 and the stirring member 14 all extend along a first direction, and the developing member 12, the supplying member 13 and the stirring member 14 respectively have a developing member axis 12X, a supplying member axis 13X and a stirring member axis 14X which are parallel to the first direction; the housing 11 has a bottom case 11A and a face cover 11B combined with each other in a second direction, and the toner T is accommodated between the bottom case 11A and the face cover 11B, preferably, a first direction, a second direction and a third direction are perpendicular to each other, and thus, the first direction may be referred to as a longitudinal direction again, the second direction may be referred to as a vertical direction again, and the third direction may be referred to as a lateral direction again, and the developing cartridge 10 is mounted and removed along the third direction, and the developing cartridge 10 has a largest size in the first direction and a smallest size in the second direction next to the third direction.

Further, the developing cartridge 10 further includes a driving force receiving member 22 and a first cover 21 at one end of the housing 11 in the first direction, the driving force receiving member 22 being exposed from the first cover 21 and receiving a driving force from the image forming apparatus, the end where the driving force receiving member 22 is located may also be referred to as a driving end; the developing cartridge 10 further includes a detection lever 300 and a second end cap 31 at the other end of the casing 11 in the first direction, the detection lever 300 being mounted on a counter gear rotatable about an axis, the second end cap 31 having an opening 31A allowing the detection lever 300 to be exposed, the detection lever 300 having formed thereon a lever contact portion 330 for interacting with a detected member of the image forming apparatus, the detected member being a lever rotatable about an axis parallel to the first direction, the detection lever 300/counter gear being part of a counter mechanism disposed on the same side, the end of the counter mechanism being referred to as a counter end; further, the developing cartridge 10 further includes a bearing member 34 at the other end of the casing 11 in the first direction, a developing electrode 35 and a supply electrode 36, the developing member 12 being supported by the bearing member 34, the developing electrode 35 and the supply electrode 36 receiving power from the image forming apparatus and being supplied to the developing member 12 and the supply member 13, respectively.

The developing part 12 comprises a developing part shaft 12A and a developing part roller part 12B coated on the surface of the developing part shaft 12A, the supplying part 13 comprises a supplying part shaft 13A and a supplying part roller part 13B coated on the surface of the supplying part shaft 13A, and the stirring part 14 comprises a stirring part shaft 14A and a flexible sheet 14B fixed on the stirring part shaft 14A; generally, the developing shaft 12A and the supplying shaft 13A are both metal shafts, preferably, the developing shaft 12A and the supplying shaft 13A are both steel shafts, the developing roller portion 12B/the supplying roller portion 13B are both made of elastic materials, and the stirring shaft 14A is a plastic member and is formed in an injection molding manner, so that not only can the cost of the stirring shaft 14A be reduced, but also the stirring shaft 14A and the flexible sheet 14B can be combined in a welding manner.

The driving force received by the driving force receiving member 22 is transmitted to the stirring member 14 through the gear train provided at the driving end, and then the driving force is transmitted to the counting end by the stirring member 14, and finally the counting mechanism is driven to operate. Therefore, the driving force is transmitted from the driving end to the counting end through the stirring part shaft 14A, as described above, the stirring part shaft 14A is a plastic part formed by injection molding, on one hand, when the driving force transmission between the gear trains at the driving end is not stable, the stirring part shaft 14A is also affected, for example, the stirring part shaft 14A jumps or deforms, so that the driving force transmission at the counting end is not stable, and finally the detection accuracy of the counting mechanism and the detected part is affected, on the other hand, when the amount of the carbon powder in the housing 11 is large, the stirring part shaft 14A may deform under the gravity of the carbon powder T, or the flexible sheet 14B transmits the resistance from the carbon powder T to the stirring part shaft 14A in the rotation process of the stirring part 14, so that the stirring part shaft 14A also deforms.

In the counting mechanism of the conventional developing cartridge 10, the counting gear for receiving the driving force is disposed to rotate about the rotational axis parallel to the first direction, that is, the rotational axis of the counting gear, the rotational axis 12X of the developing member 12, and the rotational axis of each gear in the gear train of the driving end are all parallel, and the rotation of the counting gear is more susceptible to the influence of the rotational stability of each gear in the gear train, thereby affecting the detection/counting accuracy of the counting mechanism.

Therefore, a transmission shaft parallel to the first direction is additionally provided in the housing 11, tapered teeth are provided at the counting end of the transmission shaft, and further, the rotation axis of the counting gear is parallel to the second direction, the influence of the resistance of the toner T on the transmission shaft during rotation is small, and the influence on the counting gear can be greatly reduced even if the gears in the gear train vibrate, however, in practice, in order to enable the counting gear rotating around the axis parallel to the second direction to drive the detection rod 300 to interact with the detected member, the detected member rotates around the axis parallel to the first direction, in the second direction, the developing cartridge 10 not only needs to be provided with a driving force direction conversion mechanism, but also needs to be provided with a control mechanism capable of enabling the counting mechanism to meet the counting requirement, so that the size of the developing cartridge 10 in the second direction is inevitably increased, and in the first direction, the second direction and the third direction, the size of the developing cartridge 10 in the second direction is minimized, which means that the degree of freedom in designing the developing cartridge 10 is small, and the size of the developing cartridge 10 is not easy to be integrally controlled in the second direction.

Fig. 4 is a perspective view of a partial structure of the developing cartridge according to the present invention.

For ease of understanding, the same components of the present embodiment as those of the existing developing cartridge will be given the same numbers, and as shown in fig. 4, the developing cartridge 10 in the present embodiment is different from the above-described developing cartridge in that the driving force received by the counting mechanism in the present embodiment is transmitted from the driving end to the counting end through the developing member shaft 12A or the supplying member shaft 13A, the stirring member 14 is no longer used to transmit the driving force from the driving end to the counting end, the hardness of the developing member shaft 12A and the supplying member shaft 13A made of metal/steel is greater than that of the stirring member shaft 14A, and the gravity of the carbon powder T located in the housing 11 does not affect the developing member 12 and the supplying member 13, and thus the driving force can be stably transmitted from the driving end to the counting end.

Further, in the counting mechanism according to the present embodiment, the rotation axis 91X of at least one of the counter gear and the dial member 91 driven by the counter gear is set to be parallel to the third direction, or the rotation axis 91X is set to be perpendicular to both the first direction and the second direction, as shown in fig. 4, the counter gear/dial member 91 includes a base 911 and at least one dial protrusion 912 provided on the base 911, preferably, the base 911 is disc-shaped when viewed along the rotation axis 91X, the dial protrusion 912 is arranged along the circumferential direction of the base 911, and the dial protrusion 912 may be provided in a plurality at intervals according to the detection requirement of the detected member.

When the developing cartridge 10 is operated, the driving force transmitted to the counter terminal through the developing member shaft 12A or the supplying member shaft 13A is converted in direction to drive the counter gear/toggle member 91 to rotate about the rotation axis 91X by the driving force converting mechanism installed at the counter terminal, and further, the toggle protrusion 912 is directly engaged with/interacts with the detected member, or the toggle protrusion 912 toggles an end member, and then the end member interacts with the detected member.

As described above, the driving force received by the driving force receiver 22 is transmitted from the driving end to the counting end through the developing shaft 12A or the supplying shaft 13A, and the counter gear/puller 91 rotates about the axis parallel to the third direction, the developing cartridge 10 relating to the present embodiment can produce the following advantageous effects:

(1) The stability of driving force transmission is guaranteed, and the transmission efficiency of the driving force is improved;

(2) The casing 11 does not need to be additionally provided with a hole for exposing the stirring piece shaft 14A at the counting end, and the risk of leakage of the carbon powder T from the counting end can be effectively inhibited;

(3) A transmission shaft different from the stirring member shaft 14A is not required to be arranged in the shell 11, so that the material cost of the developing box can be reduced, and the risk of leakage of the carbon powder T from the counting end can be inhibited because a hole allowing the transmission shaft to be exposed is not required to be formed in the counting end;

(4) Even if the developing cartridge 10 needs to be provided with the above-described driving force direction changeover mechanism and/or control mechanism at the counting end, the developing cartridge 10 can provide sufficient space for the driving force direction changeover mechanism and/or control mechanism in the third direction thereof, and thus the miniaturization design of the developing cartridge 10 is not affected;

(5) Even if the counting mechanism, the driving force direction conversion mechanism, and the control mechanism need to occupy a part of the space in the first direction, in the case where the casing 11 can accommodate a predetermined amount of toner, the casing 11 can appropriately form an escape space in the first direction, ensuring that the size of the developing cartridge 10 as a whole in the first direction does not exceed a predetermined value;

(6) On the basis of the above (4), the degree of freedom in design of the driving force direction conversion mechanism and the control mechanism is greatly improved, which is advantageous for designers to design a structure more convenient for assembling the developing cartridge.

The developing cartridge 10 provided with both the developing member 12 and the supplying member 13 has been described above, however, in some embodiments, the developing cartridge 10 may be provided with only the developing member 12, and both the supplying member 13 and the stirring member 14 may be omitted, and at this time, the driving force received by the driving force receiving member 22 will be transmitted from the driving end to the counting end through the developing shaft 12A.

To further understand the above technical solution, the present invention will be described in detail with reference to specific embodiments, and meanwhile, the same components as those in the above developing cartridge in the embodiments described later will be given the same reference numerals to facilitate better understanding.

[ EXAMPLES one ]

Fig. 5 is a partially exploded view of a counting end of a developing cartridge according to an embodiment of the present invention; fig. 6A to 6C are perspective views of a second end cap according to an embodiment of the present invention.

As shown in fig. 5, in the present embodiment, the developing cartridge 10 includes a holder 37, the holder 37 includes a supporting hole 371 for supporting the developing member 12, a contact hole 372 for engaging with the supplying member shaft 13A, and an electrical contact portion 373 for receiving power from the image forming apparatus and supplying the developing member 12 and the supplying member 13, the holder 37 may be made of a conductive material, or may be made of a non-conductive material, when the holder 37 is made of a non-conductive material, only the area where the electrical contact portion 373 is located is a conductive material, and when the electrical contact portion 373 receives power, the electrical conduction to the developing member 12 and the supplying member 13 is realized through a metal member; in the present embodiment, the bracket 37 integrates the aforementioned bearing member 34, developing electrode 35, and supply electrode 36, and the number of parts can be reduced, thereby making the assembly of the developing cartridge 10 simple; the developing cartridge 10 has a relief portion 111 at the counting end, the relief portion 111 may be used to enable the counting mechanism 9 to be mounted, and the second end cap 31 may cover at least a part of the counting mechanism 9; the housing 11 also has a projection 112 extending in the second direction, the projection 112 being usable for mounting at least a part of the counting mechanism 9; in the first direction, the housing 11 further includes a main body 1101 and an extension portion 1102 extending from the main body 1101 to the counting end, and the housing 11 further includes a first end surface 113 located at the extension portion 1102 and a first side surface 114 located at the main body 1101.

As shown in fig. 6A to 6C, the second end cap 31 may be used to cover at least a portion of the counting mechanism 9, the second end cap 31 having an opening 31A and an escape opening 31B, the opening 31A being used to expose at least a portion of the counting mechanism 9 to the outside so as to be able to interact with a detected member in the image forming apparatus; the escape opening 31B serves to expose at least a portion of the holder 37, for example, the electrical contact 372, to the outside so as to be able to receive power supplied from the image forming apparatus; in the present embodiment, the second end cap 31 includes a first portion 32 and a second portion 33, the first portion 32 having a mounting shaft 321 on a side facing the developing cartridge 10, the mounting shaft 321 being parallel to the first direction, the mounting shaft 321 being for interacting with at least a portion of the counting mechanism 9 to mount at least a portion of the counting mechanism 9; the side of the second portion 33 facing the developing cartridge 10 has a mounting groove 331, the mounting groove 331 is for interacting with at least a portion of the counting mechanism 9 to mount at least a portion of the counting mechanism 9, and specifically, the mounting groove 331 may be shaped to allow at least a portion of the counting mechanism 9 to be stably mounted; the first portion 32 and the second portion 33 are formed separately, the first portion 32 has a first opening 323, the second portion 33 has a second opening 333, the opening 31A is formed by combining the first opening 323 and the second opening 333, the relief opening 31B is located in the second portion 32, the first portion 32 further has a mounting portion 322, the second portion 33 further has a mounted portion 332, specifically, the mounting portion 322 and the mounted portion 332 are both provided as through holes, the mounting portion 322 and the mounted portion 332 are coaxially provided and can be combined with the housing 10 through screws or bolts.

The first part 32 and the second part 33 are formed separately, when at least part of the components covered by the first part 32 or exposed from the first part 32 needs to be disassembled, the expected operation can be completed only by disassembling the first part 32 without disassembling the whole second end cover 31 every time, so that other parts which do not need to be disassembled can be prevented from falling off, the quality stability of the developing box 10 is ensured, the assembling complexity is reduced, and in addition, when the first part 32 and the second part 33 are respectively assembled, the parts which need to be aligned are reduced, and the assembling difficulty is reduced.

Fig. 7 is a perspective view of a counting mechanism according to an embodiment of the present invention; fig. 8 is a perspective view of a driving member according to an embodiment of the present invention; fig. 9A and 9B are perspective views of an intermediate member according to an embodiment of the present invention; fig. 10A and 10B are perspective views of a counter gear and a toggle member according to an embodiment of the present invention; fig. 11 is a perspective view of a detecting member according to an embodiment of the present invention; fig. 12 is a perspective view of a mounting post according to an embodiment of the present invention; fig. 13A is a view of a developing cartridge according to an embodiment of the present invention, when viewed in a second direction, with a part of the developing cartridge hidden; fig. 13B is a schematic diagram of a second end cap and a counting mechanism according to an embodiment of the present invention.

As shown in fig. 7, the counting mechanism 9 includes a detecting rod 300, a toggle member 91, a counting gear 92, an intermediate member 93 and a driving member 94, which interact with each other, the driving member 94 is disposed/coupled with the intermediate member 93, the intermediate member 93 is disposed with the counting gear 92, the counting gear 92 is coupled with the toggle member 91, and the toggle member 91 interacts with the detecting rod 300; the counting mechanism 9 further comprises a mounting post 95 for mounting the counting gear 92 and the toggle member 91.

As shown in fig. 8, the driving member 94 includes a driving member gear 941 and a cylinder 942 connected to the driving member gear 941, the cylinder 942 having an irregular hole 943 coaxially disposed, the driving member gear 941 for interacting with the intermediate member 93 to transmit a driving force to the intermediate member 93; the irregular hole 943 is for shaft-hole engagement with the supply member shaft 13A to fixedly mount the driver 94 to the supply member 13 to receive the driving force transmitted from the driving end through the supply member 13 such that the driver 94 rotates with the supply member 13 about the supply member axis 13X, and in other embodiments, the irregular hole 943 may also be shaft-hole engagement with the developer shaft 12A to transmit the driving force through the developer 12. In the present embodiment, the irregular holes 943 may be D-shaped holes or polygonal holes; in other embodiments, the driving member 94 can also be provided as an irregular solid shaft with the post 942 provided with an irregular hole in the supply member shaft 13A that matches the post 942 to allow the driving member 94 to be shaft-hole fitted with the supply member shaft 13A to allow the driving member 94 to rotate with the supply member 13 about the supply member axis 13X.

In the present embodiment, the driving force direction conversion mechanism is provided as a bevel gear transmission, and can convert the driving force from rotating in the first direction to rotating in the third direction, and the specific structure is as follows.

As shown in fig. 9A and 9B, the intermediate member axis 93X of the intermediate member 93 is parallel to the first direction, the intermediate member 93 is operable to interact with the driving member 94 to receive the driving force, the intermediate member 93 has an intermediate member through hole 931, a first gear part 932 and a second gear part 933, the intermediate member through hole 931 is operable to be fitted with the mounting shaft 321 of the second end cap 31; the first gear unit 932 is a bevel gear for changing the transmission direction of the force, and along the first direction, the diameter of the large end 9321 of the first gear unit 932 is smaller than that of the second gear unit 933, and the first gear unit 932 is closer to the housing 11 than the second gear unit 933; the second gear part 933 is adapted to mesh with the driver gear 941 for receiving the driving force transmitted by the driver 94 so that the intermediate member 93 can rotate about the intermediate member axis 93X/the mounting shaft 321, and the first gear part 932 is opposed to/meshed with the counter gear 92 for transmitting the driving force to the counter gear 92.

As shown in fig. 10A and 10B, the rotation axis 91X of at least one of the dial 91 and the counter gear 92 is parallel to the third direction, and in the present embodiment, the counter gear 92 is formed integrally with the dial 91; the counter gear 92 has a counter gear through hole 921, a gear portion 922, and a tooth missing portion 923, the counter gear through hole 921 penetrates the counter gear 92 and the dial member 91, and is used for cooperating with the mounting post 95 to mount the counter gear 92 and the dial member 91; the gear portion 922 is a bevel gear for opposing/meshing with the first gear portion 932 to receive a driving force, and rotating the counter gear 92 and the dial 91 about the rotation axis 91X/the mounting post 95 to count; the missing tooth portion 923 is configured to face the first gear portion 932 when counting is completed, so that the counter gear 92 and the dial 91 stop rotating. The toggle piece 91 has a base 911 and a toggle protrusion 912 extending from the base 911 in a direction away from the counter gear 92, the base 911 has a first face 9111 away from the counter gear 92 and a second face 9112 close to the counter gear 92, and in this embodiment, the second face 9112 is covered by the counter gear 92 and thus is not visible; the toggle protrusion 912 includes a first toggle protrusion 912A, a second toggle protrusion 912B and a third toggle protrusion 912C, the toggle member 91 is used for interacting with the detection lever 300 to toggle the detected member in the imaging device, and specifically, the first toggle protrusion 912A to the third toggle protrusion 912C are used for interacting with the detection lever 300.

The first gear portion 932 of the middle part 93 and the gear portion 922 of the counting gear 92 are mutually meshed bevel gears, the first gear portion 932 rotates along with the middle part 93 in a first direction, the gear portion 922 is opposite to/meshed with the first gear portion 932 and receives driving force, and therefore the counting gear 92/the poking part 91 rotates in a third direction perpendicular to the first direction so as to poke detected pieces in the imaging device to count.

As shown in fig. 11, the detection lever 300 has a detection lever axis 300X parallel to the second direction, the detection lever 300 includes a detection lever through hole 301, a lever contact portion 330, and a force receiving portion 320, the lever contact portion 330 and the force receiving portion 320 are respectively located at both sides of the detection lever through hole 301, the detection lever through hole 301 is used to cooperate with the protrusion 112 of the housing 11 so that the detection lever 300 is mounted, and the detection lever 300 can rotate about the detection lever axis 300X/the protrusion 112; the force receiving portion 320 is used for interacting with the toggle member 91, and specifically, the force receiving portion 320 is used for interacting with the toggle protrusion 912 to rotate the detection lever 300 about the detection lever axis 300X/protrusion 112, so that the lever contact portion 330 toggles the detected member in the image forming apparatus for counting. The lever contact part 330 is exposed to the outside through the opening 31A of the second end cap 31, and thus can interact with the detected member.

As shown in fig. 12, the mounting post 95 includes a first post 951 extending in a first direction and a second post 952 and a third post 953 extending in a third direction, one end of the first post 951 has an action portion 955, the action portion 955 is used for being matched with the mounting groove 331 of the second end cap 31 to fix the mounting post 95, the other end of the first post 951 is connected with one end of the second post 952, the other end of the second post 952 is connected with one end of the third post 953, and the diameter of the third post 953 is smaller than that of the second post 952, so that a step 954 is formed at the connection position of the second post 952 and the third post 953, the third post 953 is used for being matched with the counter gear through hole 921, and the step 954 is used for abutting against a surface 913 (shown in fig. 10B) of the side of the dial 91 far from the counter gear 92 to restrict the movement of the drive gear 92 and the dial 91 in the third direction, so that the counter gear 92 and the dial 91 are mounted.

As shown in fig. 13A, at the counting end, the housing 11 has a first end surface 113, the supply member shaft 13A has a second end surface 131, and the second end surface 131 of the supply member shaft 13A is closer to the supply member roller portion 13B than the first end surface 113 of the housing 11 in the first direction, that is, the supply member 13 does not go beyond the first end surface 113 of the housing 11, and the fitting of the driver 94 with the supply member shaft 13A can make the components more compact to meet the miniaturization design of the developing cartridge 10. In other embodiments, the developer shaft 12A has the second end surface 121 not beyond the first end surface 113 of the housing 11 when the driver 94 is mated with the shaft hole of the developer shaft 12A.

As shown in fig. 13B, the first portion 32 and the second portion 33 may cover at least a portion of the counting mechanism 9, for example, the first portion 32 may cover at least a portion of the driving member 94 or at least a portion of the intermediate member 93 or at least a portion of the driving gear 92 and at least a portion of the toggle member 91, and may also cover at least a portion of the mounting post 95 or at least a portion of the detection lever 300, and the second portion 33 may cover at least a portion of the mounting post 95 or at least a portion of the detection lever 300.

The following advantageous effects can also be obtained by providing the first portion 32 and the second portion 33 as separate bodies:

in the case where the second portion 33 has been mounted to the developing cartridge 10, the components of the counting mechanism 9 can also be mounted without having to mount the second end cap 31 after the completion of the mounting of the counting mechanism 9; when a certain part of the counting mechanism 9 needs to be disassembled, the operation can be completed only by disassembling the first part 32, so that the first part 32 and the second part 33 are formed in a split manner, the counting mechanism 9 can be conveniently assembled or disassembled, and further, the replacement of each part in the counting mechanism 9 is also convenient.

[ EXAMPLE II ]

Fig. 14 is a perspective view of an intermediate member according to a second embodiment of the present invention; fig. 15A and 15B are perspective views of a counter gear and a toggle member according to a second embodiment of the present invention.

The difference between the first embodiment and the second embodiment lies in that some parts of the counting mechanism 9, such as the intermediate part a93, the counting gear a92, and the toggle part a91, are as follows:

as shown in fig. 14, the intermediate member axis a93X of the intermediate member a93 is parallel to the first direction, the intermediate member a93 has an intermediate member through hole a931 for fitting with the mounting shaft 321 of the second end cap 31, a first gear part a932 and a second gear part a933, the intermediate member through hole a931 is operable to interact with the driving member 94 to receive the driving force; in the first direction, the diameter of the first gear part a932 is smaller than the diameter of the second gear part a933, the first gear part a932 is closer to the housing 11 than the second gear part a933, the second gear part a933 is used for meshing with the driver gear 941 for receiving the driving force transmitted by the driver 94, so that the intermediate piece a93 can rotate around the intermediate piece axis a 93X/the mounting shaft 321, and the first gear part a932 is opposite to/meshed with the counting gear a92 for transmitting the driving force to the counting gear a92; the first gear part a932 includes a plurality of transmission protrusions inclined with respect to the first direction for interacting with the counter gear 92.

As shown in fig. 15A and 15B, the rotation axis a91X of at least one of the dial a91 and the counter gear a92 is parallel to the third direction, and in the present embodiment, the counter gear a92 and the dial a91 are formed separately. The counter gear a92 has a counter gear base a920, and the counter gear base a920 is disc-shaped as viewed along the rotation axis a91X, and the counter gear base a920 includes a first end face a9201 distant from the dial a91 and a second end face a9202 close to the dial a 91; the counter gear a92 has a counter gear through hole a921, a gear portion a922 and a tooth-missing portion a923, the counter gear through hole a921 being for interacting with the mounting post 95 to mount the counter gear a92; the gear portion a922 and the tooth-missing portion a923 are located on the first end face a9201, the gear portion a922 includes at least one transmission protrusion inclined with respect to the radial direction, and is used for being opposed to/meshed with the first gear portion a932 to receive the driving force and rotate the counter gear a92 and the dial a91 around the mounting column 95; according to the detection requirement of the detected piece, the gear part A922 is provided with a plurality of transmission protrusions; the missing tooth portion a923 may be used to oppose the first gear portion a932 to stop the rotation of the counter gear a92 and the dial a 91; the counter gear a92 further comprises one or more connection openings a924 provided in the second end face a9202, the connection openings a924 being available for interaction with the toggle piece a 91. On the basis of the toggle member 91 in the first embodiment, the toggle member a91 in this embodiment extends from the second surface a9112 close to the counter gear a92 in the third direction to form one or more connection protrusions a915, and the connection protrusions a915 are used for being matched with the connection openings a924, so that the toggle member a91 can be driven by the counter gear a 92.

As shown in fig. 15A and 15B, an elastic member a96 is provided between the counter gear a92 and the toggle member a91, and the elastic member a96 may be a compression spring, a tension spring, a torsion spring, or the like. One end of the elastic piece a96 abuts against the toggle piece a91, and the other end of the elastic piece a96 abuts against the counter gear a 92. When the first gear portion a932 of the intermediate member a93 is opposite to/meshed with the gear portion a922 of the counter gear a92, in the third direction, the counter gear a92 compresses the elastic member a96 in a direction approaching to the toggle member a91, so that the connection opening a924 is engaged with the connection protrusion a915 to drive the toggle member a91 to rotate along with the counter gear a92, thereby enabling the toggle protrusion a912 to toggle the detected member; when the first gear portion a932 of the intermediate member a93 is opposite to the tooth-missing portion a923 of the counter gear a92, the counter gear a92 stops rotating, and in the third direction, the counter gear a92 is away from the toggle member a91 by the elastic force of the elastic member a96, so that the connection opening a924 is disengaged from the connection protrusion a915, and at this time, the toggle member a91 also stops rotating.

[ EXAMPLE III ]

Fig. 16 is a perspective view of an intermediate member according to a third embodiment of the present invention; fig. 17 is a perspective view of the counter gear and the toggle member according to the third embodiment of the present invention.

The difference between the present embodiment and the second embodiment lies in the partial structure of the intermediate member B93 and the partial structure of the counter gear B92, which are specifically as follows:

as shown in fig. 16, the intermediate member axis B93X of the intermediate member B93 is parallel to the first direction, the intermediate member B93 has an intermediate member through hole B931 for fitting with the mounting shaft 321 of the second end cap 31, a first gear part B932 and a second gear part B933, the intermediate member through hole B931 is operable to interact with the driving member 94 to receive the driving force; in the first direction, the diameter of the first gear part B932 is smaller than the diameter of the second gear part B933, the first gear part B932 is closer to the housing 10 than the second gear part B933, the second gear part B933 is configured to be engaged with the driver gear 941 for receiving the driving force transmitted by the driver 94, so that the middle part B93 can rotate around the middle part axis B93X/the mounting shaft 321, the first gear part B932 is opposite to/engaged with the counter gear B92 for transmitting the driving force to the counter gear B92; the first gear part B932 includes a plurality of transmission protrusions extending in the first direction for interacting with the counter gear B92.

In this embodiment, the toggle element B91 has the same structure as the toggle element a91 in the second embodiment, and therefore, the description thereof is omitted. As shown in fig. 17, the rotation axis B91X of at least one of the dial B91 and the counter gear B92 is parallel to the third direction, and in the present embodiment, the counter gear B92 and the dial B91 are formed separately. The counter gear B92 has a counter gear base B920, and the counter gear base B920 is disc-shaped as viewed along the rotation axis B91X, and the counter gear base B920 includes a first end face B9201 distant from the dial B91 and a second end face B9202 close to the dial B91; the counter gear B92 has a counter gear through hole B921, a gear portion B922, and a tooth-missing portion B923, the counter gear through hole B921 being used to interact with the mounting post 95 to mount the counter gear B92; the gear part B922 and the tooth-missing part B923 are located on the first end face B9201, the gear part B922 includes at least one transmission protrusion parallel to the radial direction, and is used for being opposite to/meshed with the first gear part B932 to receive the driving force, and enabling the counting gear B92 and the shifting piece B91 to rotate around the mounting column 95; according to the detection requirement of the detected piece, the gear part B922 is provided with a plurality of transmission protrusions; the missing tooth portion B923 may be used to oppose the first gear portion B932 to stop the rotation of the counter gear B92 and the toggle member B91; the counter gear B92 further comprises one or more connection openings B924 provided in the second end face B9202, the connection openings B924 being adapted to interact with the toggle part B91, in particular the connection openings B924 cooperating with the connection projections B915.

As shown in fig. 17, an elastic member B96 is provided between the counter gear B92 and the toggle member B91, and the elastic member B96 may be a compression spring, a tension spring, a torsion spring, or the like. One end of the elastic member B96 abuts against the toggle member B91, and the other end of the elastic member B96 abuts against the counter gear B92. When the first gear part B932 of the intermediate part B93 is opposite to/meshed with the gear part B922 of the counter gear B92, in the third direction, the counter gear B92 compresses the elastic part B96 in a direction approaching to the toggle part B91, so that the connection opening B924 is matched with the connection protrusion B915 to drive the toggle part B91 to rotate along with the counter gear B92, and the toggle protrusion B912 is enabled to toggle the detected part; when the first gear portion B932 of the intermediate member B93 is opposite to the tooth-missing portion B923 of the counter gear B92, the counter gear B92 stops rotating, and in the third direction, the counter gear B92 is separated from the toggle member B91 by the elastic force of the elastic member B96, so that the connection opening B924 is disengaged from the connection protrusion B915, and at this time, the toggle member B91 also stops rotating.

[ EXAMPLE IV ]

Fig. 18 is a perspective view of a part of the structure of a developing cartridge according to a fourth embodiment of the present invention; fig. 19A to 19C are perspective views of a second end cap according to a fourth embodiment of the present invention.

The present embodiment is different from the above embodiments in that the second end cap C31 and some components of the counting mechanism 9 are as follows:

as shown in fig. 18, the developing cartridge 10 further includes a positioning post 15 extending in the first direction, the positioning post 15 has a positioning post axis 15X parallel to the first direction, the positioning post 15 extends from the first side surface 114 in a direction away from the housing 11, the positioning post 15 is used for mounting the intermediate member C93, and the positioning post 15 includes a step surface 151, and the step surface 151 is used for interacting with the intermediate member C93.

As shown in fig. 19A to 19C, a second end cap C31 may be used to cover at least a portion of the counting mechanism 9, the second end cap C31 having an opening C31A and an escape opening C31B, the opening C31A being used to expose at least a portion of the counting mechanism 9 to the outside so as to be able to interact with a detected member in the image forming apparatus; the escape opening C31B is for exposing the electrical contact 372 of the cradle 37 to the outside so as to be able to receive power supplied from the image forming apparatus; in the present embodiment, the second end cap C31 includes a first portion C32 and a second portion C33, and the first portion C32 and the second portion C33 are formed as separate bodies; the side of the second portion C33 facing the developing cartridge 10 has a mounting groove C331, the mounting groove C331 is configured to interact with at least a portion of the counting mechanism 9 to mount at least a portion of the counting mechanism 9, and specifically, the mounting groove C331 may be shaped to stably mount at least a portion of the counting mechanism 9; the second section C33 further comprises an installation shaft C332 disposed on the same side as the installation groove C331, the installation shaft C332 being parallel to the first direction, the installation shaft C332 being adapted to interact with at least a portion of the counting mechanism 9 to install at least a portion of the counting mechanism 9; the opening C31A is provided adjacent to the mounting groove C331/the mounting shaft C332, and the escape opening C31B is located in the second section C32.

The first part C32 and the second part C33 are formed separately, and when at least a part of the components covered by the first part C32 or exposed from the first part C32 needs to be disassembled, the expected operation can be completed only by disassembling the first part C32 without disassembling the whole second end cap C31 each time, so that other parts which do not need to be disassembled can be prevented from falling off, thereby ensuring the stable quality of the developing cartridge 10 and reducing the complexity of assembly, and in addition, when the first part C32 and the second part C33 are respectively assembled, the number of the parts which need to be aligned is reduced, thereby reducing the difficulty of assembly.

Fig. 20 is a perspective view of a counting mechanism according to a fourth embodiment of the present invention; fig. 21, 22A and 22B are perspective views of an intermediate member according to a fourth embodiment of the present invention; fig. 23 is a perspective view of the counter gear and the toggle member according to the fourth embodiment of the present invention; fig. 24 is a perspective view of a detecting member according to a fourth embodiment of the present invention; fig. 25 is a perspective view of a mounting post according to a fourth embodiment of the present invention; fig. 26 is a schematic view of a second end cap and a counting mechanism according to a fourth embodiment of the present invention.

As shown in fig. 20, the counting mechanism 9 includes a detecting lever C300, a toggle member C91, a counting gear C92, an intermediate member C93 and a driving member 94 which interact with each other, the driving member 94 is disposed/coupled with the intermediate member C93, the intermediate member C93 is disposed with the counting gear C92, the counting gear C92 is coupled with the toggle member C91, and the toggle member C92 interacts with the detecting lever C300; the counter mechanism 9 further includes a mounting post C95 for mounting the counter gear C92 and the toggle member C91.

In the present embodiment, the driving force direction converting mechanism is provided as a helical gear transmission in which rotation axes thereof intersect with each other, and can convert the driving force from the rotation in the first direction to the rotation in the second direction, and the specific structure is as follows.

As shown in fig. 21, 22A, and 22B, the intermediate member axis C93X of the intermediate member C93 is parallel to the first direction, the intermediate member C93 includes a first intermediate member C93A and a second intermediate member C93B coaxially disposed, the first intermediate member C93A and the second intermediate member C93B may be formed separately or integrally, and this embodiment will be described when the first intermediate member C93A and the second intermediate member C93B are formed separately. The first intermediate piece C93A includes a cylinder C93A2, a through hole C93A1 located at the center of the cylinder C93A2, and a gear C93A3 and one or more protrusions C93A4 located at both ends of the cylinder C93A2, respectively; the through hole C93A1 is used for being matched with the positioning column 15 so that the first intermediate piece C93A is installed; a gear C93A3 for interacting with the driver 94 to receive the driving force and to rotate the first intermediate piece C93A about an intermediate piece axis C93X, the gear C93A3 being arranged as a helical gear; the projection C93A4 is used to interact with the second intermediate member C93B to achieve connection of the first intermediate member C93A and the second intermediate member C93B. The second intermediate member C93B includes a through hole C93B1, a gear C93B2, and one or more grooves C93B3 on an end surface of the gear C93B 2; the through hole C93B1 is used for being matched with the positioning column 15; the gear C93B2 is for opposing/meshing with the counter gear C92 to transmit a driving force; the recess C93B3 is configured to cooperate with the projection C93A4 of the first intermediate member C93A to integrate the first intermediate member C93A and the second intermediate member C93B, the second intermediate member C93B being rotatable about the intermediate member axis C93X along with the first intermediate member C93A, the second intermediate member C93B further including a step surface C93B4 adjacent to one side of the positioning post 15, the step surface C93B4 of the second intermediate member C93B being configured to abut against the step surface 151 of the positioning post 15 when the intermediate member C93 is mounted, and the position of the intermediate member C93 in the first direction being restricted to allow the intermediate member C93 to be stably mounted, thereby making the gear transmission more stable.

The toggle member 91 has the same structure as that of the first embodiment, and therefore, the description thereof is omitted. As shown in fig. 23, in the present embodiment, the counter gear C92 is formed integrally with the dial 91, and the rotational axis 91X of at least one of the dial 91 and the counter gear C92 is parallel to the second direction. The counter gear C92 has a counter gear through hole C921, a wall portion C922, and a gear portion C923 and a tooth-missing portion C924 located on an outer circumferential surface of the wall portion C922, the wall portion C922 extending from the second face 9112 of the base 911 in the second direction; the counting gear through hole C921 penetrates through the counting gear C92 and the toggle piece 91 and is used for being matched with the mounting column C95 so that the counting gear C92 and the toggle piece 91 are mounted; the gear portion C923 is a helical gear for opposing/meshing with the gear C93B2 of the second intermediate member C93B to receive a driving force and rotating the counter gear C92 and the dial 91 about the rotation axis C92X/the mounting post C95 to count; the toothless portion C924 is configured to face the gear C93B2 of the second intermediate member C93B when counting is completed, so that the counter gear C92 and the dial 91 stop rotating. The toggle member 91 is used to interact with the detection lever C300 to toggle the detected member in the image forming apparatus.

As shown in fig. 24, the sensing lever axis line C300X of the sensing lever C300 is parallel to the first direction, the sensing lever C300 includes a sensing lever through hole C301, a lever contact portion C330 and a force receiving portion C320, the lever contact portion C330 and the force receiving portion C320 being respectively located at both sides of the sensing lever through hole C301, the sensing lever through hole C301 being adapted to cooperate with the second mounting shaft 332 of the second end cap C31 so that the sensing lever C300 is mounted, the sensing lever C300 being rotatable about the sensing lever axis line C300X/the second mounting shaft 332; the force receiving portion C320 is configured to interact with the toggle member 91, and in particular, the force receiving portion C320 is configured to interact with the toggle protrusion 912, so that the sensing lever C300 rotates about the sensing lever axis C300X/the second mounting axis 332, thereby causing the lever contact portion C330 to toggle the sensed members in the image forming apparatus for counting. The lever contact part C330 is exposed to the outside through the opening 31A of the second end cap C31, and thus can interact with the detected member.

As shown in fig. 25, the mounting post C95 includes a first post C951 extending in a first direction and a second post C952 and a third post C953 extending in a second direction, one end of the first post C951 has an action portion C955 for interacting with the mounting groove 331 of the second end cap C31 to fixedly mount the post C95, the other end of the first post C951 is connected with one end of the second post C952, the other end of the second post C952 is connected with one end of the third post C953, and the diameter of the third post C953 is smaller than that of the second post C952, so that a step C954 is formed at the connection of the second post C952 and the third post C953, the other end of the third post C953 is for cooperating with the counter gear through hole C921 of the counter gear C92, and the step C954 is for abutting against a surface 913 (shown in fig. 10B) of the dial 91 on the side away from the counter gear C92 to restrict movement of the drive gear C92 and the dial 91 in the second direction, so that the counter gear C92 and the dial 91 are mounted.

As can be seen from the above, in the present embodiment, the driving member 94 receives the driving force transmitted by the supplying member 13, the driving member 94 engages with the intermediate member C93 and transmits the driving force to the intermediate member C93, so that the intermediate member C93 rotates about the intermediate member axis C93X parallel to the first direction, the intermediate member C93 engages with the counting gear C92 and transmits the driving force to the counting gear C92 and the toggle member 91, so that the counting gear C92 and the toggle member 91 rotate about the rotation axis C92X parallel to the second direction, thereby realizing the direction conversion of the driving force.

As shown in fig. 26, the first portion C32 and the second portion C33 may respectively cover at least a part of the counting mechanism 9, for example, the first portion C32 may cover at least a part of the driving member 94 or at least a part of the intermediate member C93, the second portion 33 may cover at least a part of the intermediate member C93 or at least a part of the driving gear C92 and at least a part of the toggle member 91 or at least a part of the mounting post 95 or at least a part of the detection lever 300.

The following advantageous effects can also be obtained by providing the first portion C32 and the second portion C33 as separate bodies:

in the case where the second portion C33 has been mounted to the developing cartridge 10, the components of the counting mechanism 9 can also be mounted without having to mount the second end cap C31 after the completion of the mounting of the counting mechanism 9; when a certain part of the counting mechanism 9 needs to be disassembled, the operation can be completed only by disassembling the first part C32, so that the first part C32 and the second part C33 are formed in a split manner, the assembly or disassembly of the counting mechanism 9 is convenient, and further, the replacement of each part in the counting mechanism 9 is also convenient.

Claims (10)

1. The developing device comprises a developing box, a developing roller and a supplying part, wherein the developing box is detachably installed in an imaging device provided with a detected part, the developing box comprises a shell for accommodating carbon powder, and a developing part and a supplying part which are rotatably installed in the shell, the supplying part is used for supplying the carbon powder to the developing part, the developing part comprises a developing part shaft and a developing part roller part coated on the surface of the developing part shaft, and the supplying part comprises a supplying part shaft and a supplying part roller part coated on the surface of the supplying part shaft; it is characterized in that the utility model is characterized in that,

the developing cartridge further includes a driving force receiving member at one end of the housing in the first direction, and a counting mechanism and a second end cap at the other end, respectively, at least a portion of the counting mechanism being exposed from the second end cap, the driving force receiving member receiving a driving force from the image forming apparatus being transmitted to the counting mechanism through the supplying member shaft or the developing member shaft;

the counting mechanism comprises a driving part, an intermediate part, a counting gear and a stirring part driven by the counting gear, wherein the driving part, the intermediate part, the counting gear and the stirring part are mutually interacted;

the housing has a first end surface on the same side as the counting mechanism, and the supply member shaft or the developing member shaft has a second end surface on the same side as the counting mechanism, the second end surface being closer to the supply member roller portion or the developing member roller portion than the first end surface in the first direction.

2. A cartridge according to claim 1, wherein the driving member includes a driving member gear and a cylinder connected to the driving member gear, the cylinder having an irregular hole coaxially provided for shaft hole fitting with the supplying member shaft or the developing member shaft, the driving member gear being adapted to interact with the intermediate member and transmit the driving force to the intermediate member.

3. A developing cartridge according to claim 2, wherein the intermediate member has an intermediate member axis parallel to the first direction, the intermediate member includes an intermediate member through hole for fitting with the fitting shaft of the second end cap, a first gear portion which is a bevel gear having a larger end diameter than that of the second gear portion in the first direction, the first gear portion being closer to the casing than the second gear portion, and a second gear portion for engaging with the driving member gear to receive the driving force, the first gear portion being for engaging with the counter gear and transmitting the driving force to the counter gear.

4. A developing cartridge according to claim 3, wherein a rotational axis of at least one of the counter gear and the dial is parallel to the third direction, the counter gear is a bevel gear, and the counter gear is formed integrally with the dial.

5. A developing cartridge according to claim 2, wherein an intermediate member axis of the intermediate member is parallel to the first direction, the intermediate member has an intermediate member through hole for fitting with the mounting shaft of the second end cap, a first gear portion including a plurality of transmission protrusions inclined with respect to the first direction, a diameter of the first gear portion is smaller than a diameter of the second gear portion in the first direction, the first gear portion is closer to the casing than the second gear portion, and a second gear portion for engaging with the driving member gear to receive the driving force, the first gear portion is for engaging with the counter gear and transmitting the driving force to the counter gear.

6. A developing cartridge according to claim 5, wherein a rotational axis of at least one of the counter gear and the dial member is parallel to the third direction, the counter gear is formed separately from the dial member, the counter gear has a counter gear base body including a first end face and a second end face, a counter gear through hole for interacting with the mounting posts, a gear portion on the first end face, the gear portion including at least one transmission protrusion inclined with respect to a radial direction, the gear portion being adapted to be engaged with the first gear portion, and a tooth-missing portion on the first end face, the counter gear further including one or more connecting openings provided on the second end face, the connecting openings being adapted to interact with the dial member.

7. A developing cartridge according to claim 6, wherein the dial member includes a dial protrusion and a coupling protrusion, an elastic member is provided between the counter gear and the dial member, one end of the elastic member abuts the dial member, the other end of the elastic member abuts the counter gear, the elastic member is compressed in the third direction when the first gear portion of the intermediate member opposes/engages the gear portion of the counter gear, the coupling opening engages with the coupling protrusion, and the coupling opening disengages from the coupling protrusion by the elastic force in the third direction when the first gear portion of the intermediate member opposes the missing gear portion of the counter gear.

8. A cartridge according to claim 2, wherein an intermediate member axis of the intermediate member is parallel to a first direction, the intermediate member has an intermediate member through hole for fitting with a fitting shaft of the second terminal cover, a first gear portion including a plurality of transmission protrusions extending in the first direction, a diameter of the first gear portion is smaller than a diameter of the second gear portion in the first direction, the first gear portion is closer to the casing than the second gear portion, the second gear portion is for meshing with the driver gear to receive the driving force, and the first gear portion is for meshing with the counter gear to transmit the driving force to the counter gear.

9. A developing cartridge according to claim 8, wherein a rotational axis of at least one of the counter gear and the dial member is parallel to a third direction, the counter gear is formed separately from the dial member, the counter gear has a counter gear base body including a first end surface and a second end surface, a counter gear through hole for interacting with the mounting posts, a gear portion on the first end surface for meshing with the first gear portion, and a tooth-missing portion on the first end surface for opposing the first gear portion, the counter gear further includes one or more connecting openings provided on the second end surface for interacting with the dial member.

10. A developing cartridge according to claim 9, wherein the dial member includes a dial protrusion and a coupling protrusion, an elastic member is provided between the counter gear and the dial member, one end of the elastic member abuts the dial member, the other end of the elastic member abuts the counter gear, the elastic member is compressed in the third direction when the first gear portion of the intermediate member opposes/engages the gear portion of the counter gear, the coupling opening engages with the coupling protrusion, and the coupling opening disengages from the coupling protrusion by the elastic force in the third direction when the first gear portion of the intermediate member opposes the missing gear portion of the counter gear.

Images