CN110488584B - Developing cartridge casing and developing cartridge - Google Patents
Developing cartridge casing and developing cartridge Download PDFInfo
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- CN110488584B CN110488584B CN201910889255.0A CN201910889255A CN110488584B CN 110488584 B CN110488584 B CN 110488584B CN 201910889255 A CN201910889255 A CN 201910889255A CN 110488584 B CN110488584 B CN 110488584B
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- developing cartridge
- combined
- right direction
- casing
- developing
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
Abstract
The invention relates to a developing box shell and a developing box with the same, comprising a lower shell and an upper shell which are combined with each other, wherein the upper shell comprises a surface cover body extending in the front-back direction and the left-right direction, a supporting body extending in the left-right direction and intersecting with the surface cover body in the up-down direction, and a combined part arranged at the tail end of the supporting body in the left-right direction, the lower shell is provided with a combining part combined with the combined part, the upper shell and the lower shell are combined in the up-down direction, when one shell is forced to push in the up-down direction, force in the left-right direction is generated at the combining part of the combining part and the combined part, and the combining part and the combined part are combined in the left-right direction, so that the upper shell and the lower shell can be tightly combined.
Description
Technical Field
The present invention relates to the field of electrophotographic image forming, and more particularly to a developing cartridge detachably mountable in an electrophotographic image forming apparatus such as a printer or a copying machine, and a housing of the developing cartridge.
Background
A developing cartridge is a consumable product necessary for the operation of an apparatus, such as a printer or a copying machine, in which a developer required for development is contained. The developing cartridge main body is a casing in which developer is accommodated, and a developing member, an adjusting member, an agitating member, a driving force receiving member, a power receiving member, and the like, which are required for the operation of the developing cartridge, are mounted on the casing.
The developing member is used for supplying the developer to the outside, the adjusting member is used for adjusting the developer on the surface of the developing member, the stirring member is used for stirring the developer contained in the shell to prevent the developer from caking, and the driving force receiving part and the power receiving part are respectively used for receiving driving force and power from the outside for the working of the developing box. In order to facilitate the installation of the stirring member, the existing developing cartridge casing is designed to be formed by combining an upper casing and a lower casing, during the assembly, the stirring member is firstly installed in the lower casing, and then the upper casing and the lower casing are combined through ultrasonic welding, wherein a space formed by opposite areas of the upper casing and the lower casing is an accommodating cavity for accommodating a developer.
The developer outlet is formed between the developer containing part and the developing part, the adjusting part abuts against the developing part and is installed above the developer outlet, generally, when the upper and lower shells are combined, the combining direction of the upper and lower shells relative to the adjusting part is vertical to the direction of the upper shell covering the lower shell, except for the position below the adjusting part, the upper shell directly covers the lower shell, therefore, when welding, the position of the upper shell directly covering the lower shell can be tightly combined, but the position opposite to the adjusting part easily causes the part to be not tightly combined due to the fact that the pressing force cannot be received, and the defect that the developer leaks from the part often occurs.
Disclosure of Invention
The present invention provides a developing cartridge housing which ensures tight coupling of each position of upper and lower housings by redesigning a coupling structure of the upper and lower housings to prevent leakage of a developer.
In order to realize the purpose, the invention adopts the following technical scheme:
the developing box shell comprises a lower shell and an upper shell which are combined with each other, wherein the upper shell comprises a surface cover body extending in the front-back direction and the left-right direction, a supporting body extending in the left-right direction and intersecting with the surface cover body in the up-down direction, and a combined part arranged at the tail end of the left-right direction of the supporting body, the lower shell is provided with a combined part combined with the combined part, the upper shell and the lower shell are combined in the up-down direction, when one shell is forced to push in the up-down direction, a force in the left-right direction is generated at the combined part of the combined part and the combined part, and the force forces the combined part and the combined part to be combined in the left-right direction.
At least one part of the supporting body is approximately trapezoidal, and the distance between two longitudinal ends of the supporting body is gradually reduced along the direction from top to bottom.
The combination position of the combining part and the combined part is not positioned at the longitudinal end of the shell.
The extension length of the support body in the left-right direction is smaller than that of the surface cover body in the left-right direction, the combining part comprises a longitudinal part and a transverse part which are combined with each other, the longitudinal part extends in the left-right direction, and the transverse part extends in the front-back direction.
The support body comprises a first portion and a second portion connected with each other, wherein the first portion is closer to the face cover body than the second portion, and the second portion is approximately trapezoidal.
The joined part includes a first joining surface formed in front of the first part and a second joining surface formed in the left-right direction of the second part, and both the first joining surface and the second joining surface are joined to the joining part.
The first combining surface is parallel to the left-right direction, and the second combining surface is neither perpendicular to the left-right direction nor parallel to the front-back direction.
The second coupling surface is inclined leftward or rightward with respect to the front-rear direction.
The present invention also provides a developing cartridge comprising the developing cartridge housing as described above, containing developer therein, and a developing member rotatably mounted in the housing for supplying the developer to the outside.
The developing cartridge casing according to the present invention can be tightly coupled, and the developer accommodated in the casing does not leak from the coupling of the upper casing and the lower casing of the casing.
Drawings
Fig. 1 is a schematic view of the overall structure of a developing cartridge according to the present invention.
Fig. 2 is an exploded schematic view of part of the components of the developing cartridge relating to the present invention.
Fig. 3 is a sectional view of the developing cartridge according to the present invention taken along the front-rear direction from the middle of the left-right direction thereof.
Fig. 4A is a perspective view of the upper case of the developing cartridge according to the present invention as viewed from the outside.
Fig. 4B is an enlarged schematic view of an end portion of the upper case in the developing cartridge according to the present invention as viewed from the outside.
Fig. 4C is a perspective view of the upper case of the developing cartridge according to the present invention as viewed from the inside.
Fig. 4D is an enlarged schematic view of an end portion of the upper case in the developing cartridge according to the present invention as viewed from the inside.
Fig. 5A is a perspective view of an end portion of a lower housing in the developing cartridge according to the present invention.
Fig. 5B is an enlarged schematic view of an end portion of the lower housing in the developing cartridge relating to the present invention.
Fig. 6 is a partial schematic view of the coupling of the upper casing and the lower casing in the developing cartridge according to the present invention.
Fig. 7A is a perspective view of the protective cover in the developing cartridge according to the present invention.
Fig. 7B is a side view of the tip cap according to the present invention as viewed from left to right.
Fig. 8A and 8B are perspective views of the counter according to the present invention.
Fig. 9 is a schematic view showing a state in which the counting member is separated from the developing cartridge casing in the developing cartridge according to the present invention.
Fig. 10A to 10E are schematic views illustrating a process from an initial position to completion of counting of the counting member in the developing cartridge according to the present invention.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[ integral Structure ]
Fig. 1 is a schematic view of the overall structure of a developing cartridge according to the present invention; fig. 2 is an exploded schematic view of part of the components of the developing cartridge relating to the present invention; fig. 3 is a sectional view of the developing cartridge according to the present invention taken along the front-rear direction from the middle of the left-right direction thereof.
For convenience of description, the developing cartridge 100 is first defined as follows: the length direction along the developing cartridge 100 is the left-right direction (longitudinal direction), the width direction along the developing cartridge 100 is the front-rear direction (lateral direction), and the thickness direction along the developing cartridge 100 is the up-down direction (vertical direction) the longitudinal direction, the lateral direction, and the vertical direction are mutually perpendicular.
The developing cartridge 100 is detachably mounted to the apparatus, being mounted when the developing cartridge 100 moves forward, and being detached when the developing cartridge 100 moves backward; when the developing cartridge 100 is mounted to the apparatus, driving force and power can be received from the apparatus, and generally, components for receiving driving force and power are respectively located at two longitudinal ends of the developing cartridge, where one end of the developing cartridge for receiving driving force is referred to as a driving end and one end of the developing cartridge for receiving power is referred to as a conductive end, and in particular, the developing cartridge 100 according to the present invention has a driving end at a left end and a conductive end at a right end.
As shown in fig. 1, the developing cartridge 100 includes a casing 10A, a developing member 4 rotatably mounted in the casing 10A, an end cap 3 fixedly mounted to the casing 10A, and an adjusting member 5; wherein, the housing 10A contains developer (carbon powder) required for developing, the developing part 4 is used for supplying the carbon powder outwards, and the adjusting part 5 is contacted with the developing part and is used for adjusting the thickness of the carbon powder layer on the surface of the developing part; a power receiving member 6 for receiving a driving force is installed at the driving end, and the power receiving member 6 is exposed through the cover 3.
Further, as shown in fig. 2, the developing cartridge 100 further includes a counting assembly 7 for cooperating with a counted member preset in the apparatus, a driving member 11 for driving the counting assembly 7 to rotate, and an agitating member 15 for agitating the toner, wherein the driving member 11 receives the driving force of the power receiving member 6 to drive the counting assembly 7, and the agitating member 15 receives the driving force of the power receiving member 6 to rotate.
Referring to fig. 3, the developing cartridge 100 further includes a supplying member 8 rotatably mounted in the casing 10A, the supplying member 8 being for supplying toner to the developing member 4, and a sealing member 9 between the casing and the regulating member 5, the sealing member 9 being for sealing a space between the regulating member 5 and the casing 10A in the front-rear direction of the developing cartridge 100; the driving ends of the developing member 4 and the supplying member 8 are respectively mounted with a developing member gear 41 and a supplying member gear 81, the developing member gear 41 and the supplying member gear 81 are both coupled to the power receiving member 6 and receive the driving force of the power receiving member 6 to rotate, and in operation, the power receiving member 6 rotates about a rotation axis L1 and the counter assembly 7 rotates about a rotation axis L2 in a direction r (as shown in fig. 10A).
The shell 10A comprises a lower shell 1 and an upper shell 2 which are combined with each other, the upper shell 2 and the lower shell 1 enclose to form a containing cavity 10 for containing carbon powder, and a stirring piece 15 is rotatably arranged in the containing cavity 10; a powder outlet 13 is formed between the developing member 4 and the accommodating chamber 10 in the front-rear direction, the powder outlet 13 extends in the left-right direction by a length slightly shorter than the length of the developing member 4 in the left-right direction, toner is supplied to the developing member 4 through the powder outlet 13, the seal member 9 is located above the powder outlet 13, and similarly, the upper casing 2 is also located above the powder outlet 13.
[ combination of upper and lower cases ]
The invention provides an improved developing box, wherein one of an upper shell and a lower shell is provided with a welding wire, the welding wire and the upper shell and the lower shell are combined together by utilizing ultrasonic waves, and the invention aims at overcoming the defect that powder is easy to leak at the combined part of the upper shell and the lower shell which are opposite to an adjusting piece in the existing developing box.
Fig. 4A is a perspective view of the upper case of the developing cartridge according to the present invention as viewed from the outside; fig. 4B is an enlarged schematic view of an end portion of an upper case in the developing cartridge according to the present invention as viewed from the outside; fig. 4C is a perspective view of the upper case of the developing cartridge according to the present invention as viewed from the inside; fig. 4D is an enlarged schematic view of an end portion of an upper casing in the developing cartridge according to the present invention as viewed from the inside; fig. 5A is a perspective view of an end portion of a lower housing in the developing cartridge according to the present invention; fig. 5B is an enlarged schematic view of an end portion of a lower housing in the developing cartridge according to the present invention; fig. 6 is a partial schematic view of the coupling of the upper casing and the lower casing in the developing cartridge according to the present invention.
As shown in the figure, the upper case 2 includes a surface cover 21 extending in the front-rear direction and the left-right direction, a support body 22 extending in the left-right direction and intersecting the surface cover 21 in the up-down direction, and a coupled portion 23 provided at the end of the support body 22 in the left-right direction, preferably, the support body 22 and the surface cover 21 are perpendicular to each other, that is, the support body 22 also extends in the up-down direction, and the extension length of the support body 22 in the left-right direction is smaller than the extension length of the surface cover 21 in the left-right direction; preferably, the coupled portions 23 are provided at both the left and right ends of the support 23, and the coupled portion located at the right end of the support 22 will be described as an example.
As shown in the enlarged view of the portion R1 in fig. 4B, when viewed as a whole, the supporting body 22 includes a first portion 221 and a second portion 222 that are connected to each other, wherein the first portion 221 is closer to the surface cover body 21 than the second portion 222, the second portion 222 can be regarded as a portion that protrudes from the first portion 221 in a direction away from the surface cover body 21, the coupled portion 23 is formed recessed from front to rear and from right to left on the supporting body 22, that is, the front and right of the coupled portion 23 are suspended, and the coupled portion 23 includes a first coupling surface 231 formed in front of the first portion 221 and a second coupling surface 232 formed in right of the second portion 222; the support body 22 has a front surface 220, the seal 9 is mounted on the front surface 220, and the first portion 221 and the second portion 222 have the same front surface 220.
It should be noted that the first coupling surface 231 is parallel to the left-right direction, the second coupling surface 232 is neither perpendicular to the left-right direction nor parallel to the front-back direction, and the second coupling surface 232 is inclined to the left with respect to the front-back direction in the region of the coupled portion 23, so that the second portion 222 is trapezoidal as a whole, and the distance between the left and right ends of the second portion 222 gradually decreases from the back to the front, which is helpful for the good coupling of the upper housing 2 and the lower housing 1, and will be described in detail below.
With respect to the upper case 2, further, as shown in fig. 4C and 4D, the first bonding surface 231 and the second bonding surface 232 are respectively provided with a first bonding wire 233 and a second bonding wire 234, and the surface cover 21 is provided with a third bonding wire 211 connected to the first bonding wire 233, so that the edge portion of the case 10A can be tightly bonded when the upper case 2 is bonded to the lower case 1; meanwhile, the second portion 222 is further provided with a supported surface 223, and the supported surface 223 and the front surface 220 are oppositely disposed in the front and rear direction, so that the supported surface 223 is blocked by the first bonding wire 233 and the second bonding wire 234 with respect to the front end of the upper case 2, and the supported surface 223 is blocked by the third bonding wire 211 with respect to the right end of the upper case 2.
As shown in fig. 5A and 5B, the lower housing 1 is further provided with a coupling portion 12 above the powder outlet 13, the coupling portion 12 includes a longitudinal portion 12a and a transverse portion 12B coupled to each other, preferably, the longitudinal portion 12a is orthogonal to the transverse portion 12B, the longitudinal portion 12a extends in the left-right direction, and the transverse portion 12B extends in the front-rear direction; the longitudinal portion 12a is provided so that the coupling position of the coupling portion 12 and the coupled portion 23 is not necessarily located at the longitudinal end of the housing 10A when the upper and lower housings are coupled. The reason is as follows: the longitudinal ends of the housing 10A are often required to be provided with various fittings, and therefore, the structure of the longitudinal ends of the housing 10A is relatively more complicated, and if the combination position of the combining part 12 and the combined part 23 is located at the longitudinal ends of the housing 10A, correspondingly, the combination structure of the combining part 12 and the combined part 23 is also required to be designed to be complicated, and thus, the difficulty of design is inevitably increased.
The longitudinal portion 12a has a front surface 121, the longitudinal portion 12a and the transverse portion 12b do not completely overlap in the left-right direction, that is, the transverse portion 12b exposes a surface 123 through the longitudinal portion 12a in the left-right direction, that is, the longitudinal portion 12a and the transverse portion 12b form a step surface 123 in the front-rear direction, and the left side of the longitudinal portion 12a forms a third joining surface 122, and preferably, the longitudinal portion 12a and the transverse portion 12b have a common upper side surface 124, so that the overall structure of the joining portion 12 is simplified; as shown in fig. 5B, the third coupling surface 122 is not parallel to the front-rear direction, is not perpendicular to the left-right direction, but is inclined to the left, and the third coupling surface 122 forms an acute angle with the up-down direction in the region facing the step surface 123 in the front-rear direction, and the length of the upper side of the longitudinal portion 12a in the left-right direction is shorter than the length of the rear side, and in general, at least the third coupling surface 122 has a shape matching the second coupling surface 232, and preferably, the upper side 124 of the longitudinal portion 12a has a shape matching the first coupling surface 231.
The upper casing 2 and the lower casing 1 are combined along the up-down direction, generally, the lower casing 1 is fixed, the upper casing 2 moves from the top to the bottom, in the upper casing 2, except for the area corresponding to the combined portion 23 and the area corresponding to the second portion 222, the third bonding wires 211 are distributed along the edge of the upper housing 2, and the extending direction of the third bonding wires 211 is parallel to the up-down direction, therefore, when the upper case 2 moves from the upper side to the lower side, the third bonding wire 211 moves along with the upper case 2 integrally perpendicular to the lower case 2, and once the ultrasonic device presses the upper case 2, the third bonding wire 211 easily bonds the upper and lower cases, which is not a point of research of the present invention, and what is described in the present invention is the bonding of the supporting body 22 to the lower case 1, particularly, the bonding between the bonded portion 23 of the supporting body 22 and the bonding portion 12 of the lower case 1.
As mentioned above, the second bonding surface 232 and the third bonding surface 122 are both inclined to the left, and the second bonding surface 232 is further provided with the second welding line 234, and any point P of the third bonding surface 122 is extracted, as can be seen from the simplified analysis of the stress at point P in fig. 6, when the upper case 2 moves from the top to the bottom toward the lower case 1, the second welding line 234 applies a force f to the third bonding surface 122, the direction of the force f is parallel to the up-down direction, and it is because the third connecting surface 122 is inclined with respect to the up-down direction, thus, the acting force f can be decomposed into a first component force f1 perpendicular to the third joint surface 122 and a second component force f2 parallel to the third joint surface 122, wherein the second component force f2 powers the movement of the upper case 2 relative to the lower case 1, the first component force f1 will force the second welding line 234 to press towards the third bonding surface 122, thereby ensuring that the second bonding surface 232 and the third bonding surface 122 can be tightly bonded.
Further, in the process of combining the second combining surface 232 and the third combining surface 122, the supported surface 223 is combined with the step surface 123, which is equivalent to the supporting body 22 is supported by the step surface 123, so that the stability of the shell 10A is effectively ensured; meanwhile, the first portion 221 faces the upper side 124 of the longitudinal portion, and the first bonding wire 233 moves vertically toward the upper side 124, and similarly to the third bonding wire 211, the first bonding wire 233 easily bonds the first bonding surface 231 to the upper side 124 of the longitudinal portion.
As shown in fig. 6, the first bonding surface 231 is bonded to the upper surface 124 of the longitudinal portion by the first bonding wire 233 by the bonding of the bonding portion 12 and the bonded portion 23, and the flow path of the toner is sealed in the vertical direction; the second bonding surface 232 is bonded to the third bonding surface 122 by the second bonding line 234, and the flow path of the toner is sealed in the left-right direction and the front-rear direction; preferably, the front surface 220 of the support body is flush with the front surface 121 of the longitudinal portion, finally, the sealing member 9 is mounted on the front surface 220 of the support body, and the sealing member 9 passes through the joint position of the joint portion 12 and the jointed portion 23 to reach the front surface 121 of the longitudinal portion, i.e., the sealing member 9 passes through the second joint surface 232 and the third joint surface 122, the regulating member 5 is mounted in front of the sealing member 9, therefore, the flow path of the toner in the front-rear direction is further sealed, and the whole sealing performance of the developing cartridge 100 is further improved.
Different from the design that the second combining surface 232 and the third combining surface 122 in the existing processing box are completely opposite in the left-right direction and parallel relative to the up-down direction, that is, the second combining surface 232 and the third combining surface 122 are both vertical to the left-right direction, the invention sets the second combining surface 232 and the third combining surface 122 into the shapes which are inclined and matched relative to the up-down direction and the left-right direction, and the second combining surface 232 and the third combining surface 122 are both inclined towards the inner side of the shell 10A relative to the up-down direction, so that in the combining process of the upper shell and the lower shell, the second combining surface 232 can apply acting force on the third combining surface 122, and the second welding line 234 positioned between the upper shell and the lower shell can be fully melted, thereby realizing the tight combination of the upper shell and the lower shell; further, the support body 22 of the present invention is provided with a first part (corner part) 221 extending longer than the second part 222 in the left-right direction, and the first combining surface 231 of the first part 221 facing the lower case 1 in the up-down direction becomes a part of the combined part 23, and the longitudinal part 12a of the lower case 1 also has an extending part in the left-right direction and forms an upper side 124 which can be opposite to the first combining surface 231, preferably, the upper side 124 and the first combining surface 231 are both parallel to the left-right direction, and the first welding line 233 between them can be sufficiently melted when being pressed in the up-down direction, so as to combine both ends of the upper and lower cases, and further prevent the carbon powder from leaking from the longitudinal end of the case 10A; as described above, the corner portion 221 is provided at the longitudinal end of the support body of the upper case, and the longitudinal portion 12a of the lower case extends in the left-right direction, so that not only the coupling structure of the coupling portion 12 and the coupled portion 23 is simplified, but also the upper case and the lower case are more conveniently coupled, and the operability in coupling the two cases is greatly improved; since both longitudinal ends of the supporting body 22 are provided with the bonded portions 23, at least a part (second portion) of the supporting body 22 is substantially trapezoidal as a whole, that is, the distance between both longitudinal ends of the supporting body 22 gradually decreases in the direction from the top to the bottom.
As a modified example, the design of the second combining surface 232 and the third combining surface 122 matching obliquely with respect to the up-down direction may also be non-planar matching, for example, the third combining surface 122 is provided with a concave shape, and correspondingly, the second combining surface 232 is provided with a convex shape, or the third combining surface is provided with a convex shape, and correspondingly, the second combining surface 232 is provided with a concave shape; no matter what shape the second joint surface 232 and the third joint surface 122 are configured, when the upper and lower shells are combined, the second joint surface 232 and the third joint surface 122 are matched, and when one of the shells is forced to push in the up-down direction, a force in the left-right direction is generated at the joint of the second joint surface 232 and the third joint surface 122, and the force forces the second joint surface 232 and the third joint surface 122 to be combined in the left-right direction.
[ automatic reset ]
Fig. 7A is a perspective view of a protective cover in the developing cartridge according to the present invention; fig. 7B is a side view of the tip cap according to the present invention as viewed from left to right.
Referring to fig. 2, the end cap 3 includes an end cap body 31, a first through hole 32 and a second through hole 33 provided in the end cap body 31, and a stopper plate 34 extending from a periphery to a middle of the second through hole 33, the power receiving member 6 is exposed through the first through hole 32, the counting assembly 7 includes a counting member 72 and a compression spring 71, wherein the counting member 72 is exposed through the second through hole 33, and the compression spring 71 is installed between the counting member 72 and the stopper plate 34 for providing a force for resetting the counting member 72; as shown in fig. 7A, the end cap 3 is further provided with a reset member 35 for blocking the counting member 72 from further rotating after the counting assembly 7 finishes counting, when the developing cartridge 100 is taken out (detached), the reset member 35 no longer blocks the counting member 72, the counting member 72 continues to rotate by a certain angle under the elastic force of the compression spring 71, when the developing cartridge 100 is mounted again, the reset member 35 is subjected to an external force and forces the counting member 72 to reset, the reset member 35 is disposed along the circumferential direction of the second through hole 33, specifically, the reset member 35 protrudes from the end cap body 31 in a cantilever manner, and includes a deformable portion 351 connected to the end cap body 31 and an action portion 352 disposed at the deformable portion 351, the action portion 352 acts with the counting member 72, and the deformable portion 351 is used for providing an action force for the action portion 352.
As shown in fig. 7B, in the up-down direction, the ray d1 passes through the center M of the second through hole 33 and is parallel to the up-down direction, the ray d2 passes through the center N of the acting portion 352 and the center M of the second through hole 33, and the straight line d1 and the straight line d2 are not coincident with each other, and the angle between the two is α, and preferably, the ray d2 is located in front of the ray d1, that is, the acting portion 352 is located in front of the center M of the second through hole 33 or the projection point Q thereof below the end cap 3. The end cap 3 is mounted with the housing 10A in the direction indicated by a, so that the acting portion 352 is pushed ahead of the point Q, and once the acting portion 352 is pushed, the acting portion 352 can transmit the acting force to the counting member 72, thereby forcing the counting member 72 to reset, and thus it can be seen that this design helps the counting member 72 to be reset more quickly, so as to ensure that the counting member 72 is in the reset state after the developing cartridge 100 is completely mounted in place, unlike the conventional developing cartridge which needs to be completely mounted in place, and the counting member starts to be reset; in the resetting process, if the acting part 352 is blocked and cannot apply acting force to the counting piece 72, compared with the existing developing box, obviously, the developing box 100 adopting the resetting structure described in the invention can be sensed by an operator in time and taken out quickly, but the existing developing box is completely installed in place, and the operator needs to wait until the equipment sends a prompt to inform that the counting piece 72 is not reset, so that the developing box 100 of the invention has better use experience.
FIGS. 8A and 8B are perspective views of a counter element according to the present invention; fig. 9 is a schematic view of a state in which a counting member is separated from a developing cartridge casing in a developing cartridge according to the present invention; fig. 10A to 10E are schematic views illustrating a process from an initial position to completion of counting of the counting member in the developing cartridge according to the present invention.
As shown in fig. 8A, the counting member 72 rotates about the rotation axis L2, and includes a rotation body 721, a rim portion 722 projecting radially outward from one end of the rotation body 721, a counting protrusion 723 projecting from the rim portion 722 along the rotation axis L2 away from the rotation body 721, an acted portion 724 disposed radially outward of the counting protrusion 723, and a tooth portion 726 and a tooth-missing portion 725 disposed in the circumferential direction of the rotation body 721; wherein the tooth 726 rotates by receiving the driving force of the driving member 11, the edge 722 does not exceed the tooth 726 in the radial direction of the rotating body 721 without risk of being broken, the counting protrusion 723 is used for cooperating with the counted member, the acted portion 724 is used for cooperating with the acting portion 352 provided on the end cap 3, and when the tooth-missing portion 725 is opposite to the driving member 11, the counting member 72 is no longer driven and remains still.
As shown in fig. 8B, the counter 72 further includes a support post 720 projecting from the rotating body 721 in a direction opposite to the projecting direction of the counter protrusion 723, and a first slope segment 727, a second slope segment 729, and a holding segment 728 disposed therebetween, which are disposed inside the rotating body 721, are located on the outer periphery of the support post 720, and are rotatable around the support post 720 as a whole with the counter 72.
As shown in fig. 9, the end of the lower housing 1 is further provided with a positioning column 14 engaged with the supporting column 720 and an acting protrusion 15 disposed adjacent to the positioning column 14, the acting protrusion 15 is provided with an ascending slope segment 151, a descending slope segment 152 and a holding surface 153 therebetween, during counting, the second slope segment 729 is firstly combined with the ascending slope segment 151, then the holding segment 728 is combined with the holding surface 153, finally, the first slope segment 728 is combined with the descending slope segment 152, as the counting piece 72 rotates, the counting piece 72 firstly gradually gets away from the housing 10A, then the distance from the housing 10A keeps unchanged, and finally, the counting piece 72 gradually gets close to the housing 10A.
The process of counting and resetting the counting member 72 is described below in conjunction with fig. 10A-10E.
As shown in fig. 10A, before the developing cartridge 100 needs to be taken out, the toothless portion 725 of the counter member 72 is opposed to the driving member 11, the compression spring 71 is still in a partially compressed state, the first slope section 728 is engaged with a portion of the falling slope section 152, the deformable portion 351 is elastically deformed, the acting portion 352 is pressed and engaged with the acted portion 724 to restrict the rotation of the counter member 71, although the compression spring 71 applies an urging force toward the casing 10A to the counter member 72, in the case where the first slope section 728 is engaged with the falling slope section 152, the counter member 72 tends to be urged by the urging force to rotate about the rotation axis L2 in the direction indicated by r, but the rotation of the counter member 72 is prevented under the restriction of the acting portion 352.
As the developing cartridge 100 is taken out, once the acting portion 352 is not pressed, the acting portion 352 does not restrict the counting member 72 by the elastic restoring force of the deformable portion 351, and finally, the counting member 72 rotates by an angle (first angle) about the rotation axis L2 in the r releasing direction by the compression spring 71 and the cooperation of the first slope section 728 and the falling slope section 152, at which time, the counting member 72 comes closer to the lower casing 1; when the developing cartridge 100 is mounted again, before the developing cartridge 100 is fully mounted in place, the deformable portion 351 is elastically deformed again, the acting portion 352 applies a force to the acted portion 724 while moving toward the inside of the second through hole 33, and the counter 72 is forced to rotate again by another angle (second angle) about the rotation axis L2 in the direction r as a whole, at which time the driving member 11 and the tooth portion 726 of the counter 72 start to mesh, and when the developing cartridge 100 is fully mounted in place, the counter 72 is reset.
As the power receiving member 6 starts to receive the external driving force to rotate, the driving member 11 transmits the driving force to the counting member 72, the counting member 72 starts to count, as shown in fig. 10C, the counting member 72 continues to rotate in the direction indicated by r about the rotation axis L2, at the same time, the second slope segment 729 starts to engage with the ascending slope segment 151, and under the guidance of the ascending slope segment 151, the counting member 72 as a whole gradually moves away from the lower housing 1, the counting protrusion 723 gradually extends therewith, and the compression spring 71 is compressed; when the holding section 728 is engaged with the holding surface 153, the counting member 72 is farthest from the lower case 1, and as shown in fig. 10D, the counting protrusion 723 starts to engage with the counted member.
As shown in fig. 10E, as the counting member 72 continues to rotate, the counting protrusion 723 disengages from the counted member, the counting of the counting member 72 is completed, at which time the first slope section 728 starts to engage with the descending slope section 152, the elastic restoring force of the compression spring 71 starts to release, the counting member 72 as a whole starts to move in a direction approaching the lower casing 1 until it returns to the position shown in fig. 10A, i.e., the driving member 11 opposes the toothless section 725, and even if the power receiving member 6 continues to rotate, the counting member 72 stops rotating due to no receiving of the driving force until the developing cartridge 100 is taken out.
As described above, the counter 72 of the developing cartridge 100 can be automatically reset without manual reset by an end user, and particularly, the automatic reset structure can greatly improve user experience for an end user who does not have experience in using the developing cartridge 100.
[ other explanations ]
As described above, the driving ends of the developing member 4 and the supplying member 8 are respectively mounted with the developing member gear 41 and the supplying member gear 81, and the developing member gear 41 and the supplying member gear 81 are both coupled with the power receiving member 6 and rotated by the power receiving member 6, thereby driving the developing member 4 and the supplying member 8 to rotate.
As shown in fig. 2, the power receiving part 6 includes a power receiving part 61 for receiving the driving force, and a first gear 62 and a second gear 63 coupled to the power receiving part 61, the first gear 62 is located between the power receiving part 61 and the second gear 63, and the first gear 62 has a smaller diameter than the second gear 63, the first gear 62 is engaged with the supplying member gear 41, and the second gear 63 is engaged with the developing member gear 81.
Compared with the prior developing cartridge, the developing member 4 and the supplying member 8 used in the developing cartridge 100 according to the present invention have smaller diameters, and accordingly, the transmission ratio a of the second gear 63 to the developing member gear 41 and the transmission ratio b of the first gear 62 to the supplying member gear 81 are different from those of the prior developing cartridge, and the value of a is preferably 36: 15, b is preferably 33:18, that is, by increasing the values of the gear ratios a and b, the developing member 4 and the supplying member 8 after reducing the diameters can be applied to the developing cartridge 100; further, since the diameters of the developing member 4 and the supplying member 8 are both reduced, it means that the manufacturing costs of the developing member 4 and the supplying member 8 are lower, which ultimately contributes to reducing the production costs of the manufacturing enterprises.
Claims (8)
1. A developing cartridge casing including a lower casing and an upper casing which are coupled to each other, the upper casing including a surface cover body extending in front and rear directions and in right and left directions, a supporting body extending in the right and left directions and intersecting the surface cover body in the up and down directions, and a coupled portion provided at a left and right direction end of the supporting body, the lower casing being provided with a coupling portion coupled to the coupled portion,
the supporting body extends in the up-down direction and comprises a first part and a second part which are connected with each other, wherein the first part is closer to the face cover body than the second part, and the second part is approximately trapezoidal;
the combined part comprises a second combined surface formed in the left and right directions of the second part, and the combined part is provided with a third combined surface matched with the second combined surface;
the second joint surface is not vertical to the left-right direction, nor parallel to the front-back direction;
the upper and lower shells are combined in the vertical direction, when one shell is subjected to the vertical urging force, a force along the left-right direction is generated at the combination part of the combining part and the combined part, and the force forces the second combining surface and the third combining surface to be combined in the left-right direction.
2. A developing cartridge casing according to claim 1, wherein a distance of right and left ends of the second portion gradually decreases from rear to front.
3. A developing cartridge casing according to claim 1, wherein a joining position of the joining portion and the joined portion is not located at a longitudinal end of the casing.
4. A developing cartridge casing according to claim 3, wherein an extension length of the supporting body in the left-right direction is smaller than an extension length of the face cover body in the left-right direction, the coupling portion includes a longitudinal portion extending in the left-right direction and a lateral portion extending in the front-rear direction, which are coupled to each other.
5. A developing cartridge casing according to claim 1, wherein the coupled portion includes a first coupling surface formed in front of the first portion, the first coupling surface being coupled with an upper side surface of the coupling portion.
6. A developing cartridge casing according to claim 5, wherein the first coupling surface is parallel to the left-right direction.
7. A developing cartridge casing according to claim 6, wherein the second engaging face is inclined leftward or rightward with respect to the front-rear direction.
8. A developing cartridge, comprising a developing cartridge casing according to any one of claims 1 to 7, containing a developer therein, and a developing member rotatably mounted in the casing, for supplying the developer to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910889255.0A CN110488584B (en) | 2019-09-19 | 2019-09-19 | Developing cartridge casing and developing cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910889255.0A CN110488584B (en) | 2019-09-19 | 2019-09-19 | Developing cartridge casing and developing cartridge |
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| Publication Number | Publication Date |
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| CN110488584A CN110488584A (en) | 2019-11-22 |
| CN110488584B true CN110488584B (en) | 2022-05-17 |
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| CN201910889255.0A Active CN110488584B (en) | 2019-09-19 | 2019-09-19 | Developing cartridge casing and developing cartridge |
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| JP4217474B2 (en) * | 2002-12-20 | 2009-02-04 | キヤノン株式会社 | Magnetic seal member, developing device using the same, process cartridge, and electrophotographic image forming apparatus |
| KR20070053519A (en) * | 2005-11-21 | 2007-05-25 | 삼성전자주식회사 | Developing cartridge and method for assembling the housing thereof |
| CN101119628B (en) * | 2006-08-03 | 2010-05-12 | 明基电通信息技术有限公司 | Shielding cover and method of forming same |
| JP2009145674A (en) * | 2007-12-14 | 2009-07-02 | Fuji Xerox Co Ltd | Developing apparatus, process cartridge, and image forming apparatus |
| US8099012B2 (en) * | 2007-12-18 | 2012-01-17 | Lexmark International, Inc. | Developer roll lip seal |
| CN201876668U (en) * | 2010-11-11 | 2011-06-22 | 珠海市汇威打印机耗材有限公司 | Welding-sealed toner cartridge |
| CN102012657A (en) * | 2010-11-11 | 2011-04-13 | 珠海市汇威打印机耗材有限公司 | Welded seal type carbon powder box |
| JP2013003225A (en) * | 2011-06-14 | 2013-01-07 | Sharp Corp | Toner, developing device, and image forming apparatus including the developing device |
| CN102375377B (en) * | 2011-11-11 | 2013-09-18 | 珠海赛纳打印科技股份有限公司 | Developing box and imaging device |
| CN102402160A (en) * | 2011-12-28 | 2012-04-04 | 珠海天威飞马打印耗材有限公司 | Sealing structure of powder box |
| CN107168028A (en) * | 2011-12-31 | 2017-09-15 | 纳思达股份有限公司 | A kind of encapsulating method of handle box |
| JP5785969B2 (en) * | 2013-02-27 | 2015-09-30 | 株式会社沖データ | Developer container, developing device, and image forming apparatus |
| CN203278922U (en) * | 2013-04-28 | 2013-11-06 | 广州三星通信技术研究有限公司 | Mounting structure of reinforced bracket of mobile phone shell |
| EP2952969A1 (en) * | 2014-06-05 | 2015-12-09 | Clover Technologies Group, LLC | Leak barrier for developer cartridge |
| KR101881907B1 (en) * | 2015-10-23 | 2018-07-27 | 삼성전자주식회사 | Air conditioner and cotrolling method thereof |
| CN207223852U (en) * | 2017-09-01 | 2018-04-13 | 浙江华懋光电科技有限公司 | A kind of mobile phone display screen component disassembly and assembly structure |
| JP2019066663A (en) * | 2017-09-29 | 2019-04-25 | キヤノン株式会社 | Developing device, process cartridge, and image forming apparatus |
| CN109298611B (en) * | 2018-01-13 | 2019-12-03 | 中山诚威科技有限公司 | Delevoping cartridge and handle box |
| CN108375693A (en) * | 2018-02-28 | 2018-08-07 | 宁波三星医疗电气股份有限公司 | A kind of improvement ammeter |
| CN209265185U (en) * | 2018-12-02 | 2019-08-16 | 中山市迪迈打印科技有限公司 | Self-resetting Delevoping cartridge |
| CN210402016U (en) * | 2019-09-19 | 2020-04-24 | 珠海市源呈数码科技有限公司 | Developing cartridge casing and developing cartridge |
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