CN211454236U

CN211454236U - Developing box

Info

Publication number: CN211454236U
Application number: CN202020049624.3U
Authority: CN
Inventors: 胡飞
Original assignee: Jiangxi Yibo Electronic Technology Co Ltd
Current assignee: Jiangxi Yibo Electronic Technology Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-09-08
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a develop cartridge detachably and install to having detecting element's image forming apparatus in, develop the cartridge and include: a housing in which a developer can be accommodated; a driving gear provided at one side of the housing, receiving and transmitting a driving force from the image forming apparatus; a detection unit capable of receiving the driving force transmitted by the driving gear and detecting the driving force by the detection unit; the detected unit comprises a detection gear, a connecting component, an elastic component and a detected part; the detection gear receives the driving force to rotate and can drive the connecting component and the detected part to rotate; the elastic member is located between the detected part and the connecting member, and the detected part is forced to be located at a constant position in the axial direction by the elastic member during rotation of the detected part from an initial position to a final position. The utility model discloses a developing box is detected the unit detection function stability, can not report the mistake.

Description

Developing box

Technical Field

The utility model relates to a developing box especially relates to a developing box is by detection unit.

Background

In a related-art image forming apparatus such as a laser printer, a developing cartridge is attachable to and detachable from a main body of the image forming apparatus. After the developer in the developing cartridge is used up, it is necessary to take out the developing cartridge from the main body of the image forming apparatus and mount a new developing cartridge into the main body; or when a paper jam occurs, the developing cartridge is also taken out of the main body of the image forming apparatus and then loaded into the image forming apparatus. The image forming apparatus is generally provided with a detection unit which can determine specific information such as the model number, the capacity size, and the old and new of the developing cartridge according to information such as the number of times the detection unit is contacted and the time interval. The developing cartridge of the related art is generally provided with a detected unit on one side of the developing cartridge, the detected unit includes a detecting protrusion and a detecting gear, the detecting protrusion is configured to rotate together with the detecting gear to touch the detecting unit in the image forming apparatus when the developing cartridge is a new cartridge, the detecting protrusion does not rotate together with the detecting gear after the developing cartridge completes a detection task, and the detecting protrusion retracts relative to a side wall of the developing cartridge and is finally located at a detection end position after the detection task is completed. However, since the detecting protrusion moves axially relative to the sidewall of the housing after the detection is completed, the detecting protrusion may erroneously touch the detecting unit in the image forming apparatus again during the movement, so that the touching unit in the image forming apparatus is affected and error is reported, thereby causing a detection error.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a developing box, detachably installs to the image forming device who has detecting element, developing box includes: a housing in which a developer can be accommodated; a driving gear provided at one side of the housing, receiving and transmitting a driving force from the image forming apparatus; a detection unit capable of receiving the driving force transmitted by the driving gear and detecting the driving force by the detection unit; the detected unit comprises a detection gear, a connecting component, an elastic component and a detected part; the detection gear receives the driving force to rotate and can drive the connecting component and the detected part to rotate; the elastic member is located between the detected part and the connecting member, and the detected part is forced to be located at a constant position in the axial direction by the elastic member during rotation of the detected part from an initial position to a final position.

Further, one end of the elastic member abuts against the detected portion, and the other end of the elastic member abuts against the connecting member.

Furthermore, the connecting component is provided with a meshing part, and the detection gear is provided with a limiting bulge which is matched with the meshing part to drive the connecting component to rotate.

Furthermore, an indication groove is arranged on the detected part, and a boss matched with the indication groove to drive the detected part to rotate is arranged on the connecting component; when the detection gear drives the connecting member to rotate, the connecting member can drive the detected parts to rotate together.

Further, after the detected part and the detecting unit complete the detecting task, the connecting member moves close to the housing in the axial direction under the elastic force of the elastic member so that the restricting projection disengages from the engaging part.

Further, the detected part and the connecting member are engaged at all times during the rotation of the detected part from the initial position to the end position.

Further, the connecting component comprises a positioning component, wherein the positioning component is arranged on one side of the shell, and the positioning component is used for limiting the initial position and the final position of the connecting component.

Further, the device also comprises a protective cover for covering at least one part of the detected part; the detected part is provided with an indicating groove, and the protective cover is provided with an initial position indicating part; when the initial position indicating part is opposite to the indicating groove, the detected part is located at the initial position.

Furthermore, the device also comprises a fixing component, wherein a positioning column is arranged on the positioning component, and the fixing component can fix the detected part on the positioning column.

The utility model discloses a development box by the measuring part under elastic component's elastic force effect, can not take place for the axial displacement of casing lateral wall in the testing process with detect after accomplishing, on the axial direction, can not take place to remove for the casing lateral wall all the time by the measuring part, so after accomplishing the detection, can not take place because of touching the phenomenon by the measuring unit among the image forming device by mistake for the ascending removal of axial direction by the measuring part, the utility model discloses a development box by the measuring part be located invariable position on the axial direction all the time, detect the function stable, can not appear reporting the mistake.

Description of the drawings:

fig. 1 is a perspective view of a developing cartridge of the present invention;

fig. 2 is a perspective view of a driving side of the developing cartridge of the present invention;

fig. 3 is an exploded view of the detected unit of the developing cartridge of the present invention;

figure 4 is a schematic view of the drive side of the present invention showing the positioning member;

fig. 5 is a perspective view of the detection gear of the present invention;

fig. 6 is a perspective view of the connecting member of the present invention;

fig. 7 is a perspective view of the detected part of the present invention;

fig. 8 is a schematic view of the detected unit of the present invention in an initial state;

fig. 9 is a sectional view of the detected unit of the present invention in an initial state;

fig. 10 is a schematic view of the invention when the detected unit is in a terminated state;

fig. 11 is a sectional view of the detection unit of the present invention in the end state.

The specific implementation mode is as follows:

in order to make the purpose of the embodiment of the present invention, the technical solution and the technical effect are clearer, and the following description will be made in conjunction with the accompanying drawings to clearly and completely describe the technical solution of the developing cartridge of the present invention. It should be understood that the described embodiment is only a preferred embodiment of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts are included in the protection scope of the present invention.

The developing cartridge 1 of the present invention includes a casing 10 in which a developer can be accommodated; the housing has a first side wall 11 and a second side wall 12 spaced from the first side wall 11 in the axial direction; a developing electrode 13 for receiving power is provided on the second side wall 12 of the casing; the developing roller 14 is provided at the front end of the casing, is configured to extend in the axial direction, and can receive the developer conveyed from an agitating frame (not shown) and a powder feeding roller (not shown) in the casing; a gear train for transmitting a driving force is arranged on the first side wall 11 of the developing box, and comprises a driving gear 42 capable of receiving the driving force from the image forming device and a developing roller gear 41 arranged at one end of the developing roller 14; and a powder feed roller gear 43 mounted at one end of the powder feed roller (not shown); and an idler gear 44 that transmits the driving force from the driving gear 42 to the agitator (not shown) and the detected unit 40; the agitator gear 45 is mounted on an end of an agitator (not shown) and is located on the first sidewall 11 of the housing, and the detected unit 40 is located on the first sidewall 11 of the housing, and may receive the driving force transmitted from the driving gear 42 to perform a function of being detected by the detecting unit in the image forming apparatus. Of course, alternatively, the detected unit 40 may be disposed on the second side wall 12 as long as it can receive the driving force from the driving gear 42 to realize the detected function. The utility model discloses a developing box is still including a protecting cover 50, protecting cover 50 can cover at least partly of gear train with by the part of detecting unit 40, especially can cover at least partly by the detection portion 23, still be provided with initial position indicating part 51 on the protecting cover 50, in this embodiment, initial position indicating part 51 constructs as an arrow point, can with the cooperation of the instruction recess 23a in the detection portion 23, shows developing box's initial position, the state that is detected the unit in the developing box of inspection in the convenient production process.

Fig. 3 shows an exploded view of the detected unit 40 on the first side wall 11 of the housing, which can receive the driving force from the driving gear 42 through the idle gear 44 and the agitator frame gear 45. The detected unit 40 includes a positioning member 15, a detection gear 20, a connecting member 21, an elastic member 22, a detected part 23, and a fixing member 24.

Fig. 4 is an enlarged view of the positioning member 15, the positioning member 15 comprising an initial positioning groove 15a, a support projection 15b and a final positioning groove 15c and a positioning post 15d, wherein the support projection 15b is configured as an annular rib projecting outwardly in the axial direction from the first side wall 11 of the housing.

Fig. 5 is a schematic view of the detection gear 20, which is configured in a substantially cylindrical shape, and is provided on the outer circumference thereof with gear teeth 20a, the gear teeth 20a being formed on the entire outer circumference to be engageable with the agitator frame gear 45 so as to be rotatable upon receiving the driving force transmitted from the driving gear 42. The detection gear 20 is provided with a restricting projection 20b extending radially inward from the inner circumferential surface, the restricting projection 20b being configured to be abutted with the connection member 21 so that the connection member 21 is rotated together when the detection gear 20 is rotated; an abutting boss 20c is further provided on the inner circumference of the detection gear 20, and the abutting boss 20c can restrict the movement of the connection member 21; a groove 20d is further provided between the abutment boss 20c and the limiting projection 20b of the detection gear 20.

Fig. 6 is a schematic view of the connecting member 21; the connecting member 21 is formed in a substantially cylindrical shape, and includes an abutting portion 21b configured as a rib protruding from the cylindrical main body portion toward the cartridge body side; a meshing portion 21a projecting radially outward from the cylindrical body and configured to be abuttable with a restricting projection 20b on the detection gear 20; a boss 21c configured to project from the longitudinal direction of the cylindrical body, formed in a substantially rib shape, the direction in which the boss 21c projects from the cylindrical body being opposite to the direction in which the abutment portion 21b projects from the cylindrical body; the connecting member 21 is also provided with a positioning hole 21d, into which the positioning post 15d is insertable.

FIG. 7 is a schematic view of the detected part 23; the detected part 23 includes two detection projections 23b, two of which are provided in the present embodiment, wherein the two detection projections are different in shape; of course, alternatively, the shape and number of the sensing protrusions may be variously combined, so that the sensing unit in the image forming apparatus may determine the type of the developing cartridge and the specific number of printed sheets according to the shape and number of the sensing protrusions. The detected part 23 is also provided with an indication groove 23a and an indication groove 23 e.

The utility model discloses a be detected unit 40's mounting means as follows: firstly, the detection gear 20 is mounted on the first side wall 11; then the connecting member 21 is fitted into the positioning member 15 with the abutment projection 21b in the initial positioning groove 15a of the positioning member 15, and the positioning post 15d passes through the positioning hole 21d of the connecting member; then, the elastic member 22 is mounted on the connecting member 21, and one end of the elastic member 22 is abutted against the connecting member 21; then, the detected part 23 is installed into the positioning column 15d, so that the hole 23d on the detected part 23 is inserted into the positioning column 15d, and one end of the elastic member 22 abuts against the connecting member 21 and the other end abuts against the detected part 23; finally, the detected part 23 is fixed into the positioning column 15d with the fixing member 24, so that the entire detected unit 40 can be fixedly mounted to the first side 11 of the housing.

How the detected unit 40 of the present invention is detected by the detecting unit in the image forming apparatus will be described in detail with reference to fig. 8 to 11.

As shown in fig. 8 and 9, the developing cartridge is at an initial position not detected; the boss 21c on the connecting member 21 is inserted into the indicating groove 23a of the detected part 23, so that the connecting member 21 is engaged with the detected part 23, and the elastic member 22 is located between the connecting member 21 and the detected part 23; the abutting projection 21b on the connecting member 21 is located in the initial positioning recess 15a of the positioning member 15, the engaging portion 21a on the connecting member 21 abuts with the restricting projection 20b on the detection gear 20, and the detected unit 40 is at the initial position with the distance h in the axial direction between the detection projection 23b and the first side wall 11; when the developing cartridge of the unit to be detected in the initial position is mounted in the image forming apparatus having the detecting unit (not shown), the detecting gear 20 rotates upon receiving the driving force from the driving gear 42, and then the restricting projection 20b of the detecting gear 20 abuts against the engaging portion 21a of the coupling member 21, thereby rotating the coupling member 21 together so that the abutting projection 21b is rotated along the surface of the supporting projection 15b away from the initial positioning groove 15a, the coupling member 21 rotates by abutting the boss 21c against the indicating groove 23a of the detected portion 23, thereby transmitting the driving force to the detected portion 23, thereby rotating the detected portion 23 together so that the detecting projection 23b contacts the detecting unit (not shown) of the image forming apparatus to detect the cartridge, and the detecting projection 23b is always located in the supporting projection 15b during the entire detecting process, therefore, the distance between the detection projection 23b and the housing first side wall 11 in the axial direction is always maintained at h. As shown in fig. 10 to 11, when the unit to be detected 40 in the developing cartridge completes the predetermined detection task, the abutting projection 21b in the joint member 21 is moved away from the supporting projection 15b, at which time the elastic member 22 rebounds from the compressed state and applies an elastic force close to the first side wall 11 of the casing to the joint member 21, forcing the joint member 21 to move in the axial direction toward the first side wall 11 close to the casing and to be located in the terminal positioning recess 15c, while the engaging portion 21a of the joint member 21 enters the recess 20d of the detection gear 20, the detection gear 20 is disengaged from the joint member 21, and the driving force of the detection gear cannot be transmitted into the joint member 21 any more; while the connecting member 21 is moving toward the housing first side wall 11, the elastic member 22 simultaneously applies an elastic force away from the housing first side wall to the detected part 23; at this time, since the detected part 23 is fixed at one end by the fixing member 24 and at the other end by the elastic force of the elastic member 22, the detected part 23 does not move in the axial direction with respect to the housing first side wall 11, and the detected protrusion 23b is kept at a constant distance h in the axial direction from the first side wall 11. Thereafter, the developing cartridge continues to receive the driving force to rotate in the image forming apparatus for the developing operation, the detection gear 20 rotates all the time, but since the coupling member 21 and the detection gear 20 have disengaged, the coupling member 21 cannot receive the driving force of the detection gear 20 any more and continues to rotate, but the detected part 23 and the coupling member 21 are kept engaged all the time after the detection is completed, and therefore the detected part 23 does not rotate together with the detection gear 20 and is always at the detection end position.

The utility model discloses in, can not take place to remove in axial direction by detection portion for the casing lateral wall in whole testing process to the development box that can not appear prior art is because of detecting the completion back, takes place the relative movement on the axial direction and touches the phenomenon of detecting element among the image forming device by detection portion mistake. The present invention is directed to a housing for a vehicle, in which a detection portion is not moved in an axial direction, and only a connection member is moved relative to a first side wall.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A developing cartridge detachably mountable to an image forming apparatus having a detecting unit, comprising:

a housing in which a developer can be accommodated;

a driving gear provided at one side of the housing, receiving and transmitting a driving force from the image forming apparatus; a detection unit capable of receiving the driving force transmitted by the driving gear and detecting the driving force by the detection unit;

the detected unit comprises a detection gear, a connecting component, an elastic component and a detected part; the detection gear receives the driving force to rotate and can drive the connecting component and the detected part to rotate; the elastic member is located between the detected part and the connecting member, and the elastic member urges the detected part to be located at a constant position in the axial direction during rotation of the detected part from an initial position to a final position.

2. A developing cartridge according to claim 1, wherein one end of said elastic member abuts against said detected portion, and the other end of said elastic member abuts against said connecting member.

3. A developing cartridge according to claim 1, wherein said connecting member is provided with an engaging portion, and said detection gear is provided with a restricting projection which engages with said engaging portion to rotate said connecting member.

4. A developing cartridge according to claim 3, wherein said detected part is provided with an indicating groove, and said connecting member is provided with a boss which is engaged with said indicating groove to drive said detected part to rotate; when the detection gear drives the connecting member to rotate, the connecting member can drive the detected parts to rotate together.

5. A developing cartridge according to claim 4, wherein said coupling member is moved closer to said casing in the axial direction by the elastic force of said elastic member so that said restricting projection is disengaged from said engaging portion after the detection task of said detected portion and said detecting unit is completed.

6. A developing cartridge according to claim 5, wherein said detected portion is always engaged with said connecting member in a process of rotating said detected portion from said initial position to said end position.

7. A developing cartridge according to claim 1, further comprising a positioning member provided at a side of said casing, said positioning member defining an initial position and a terminal position of said connecting member.

8. The developing cartridge according to claim 1, further comprising a cover for covering at least a part of said detected part; the detected part is provided with an indicating groove, and the protective cover is provided with an initial position indicating part; when the initial position indicating part is opposite to the indicating groove, the detected part is located at the initial position.

9. A developing cartridge according to claim 7, further comprising a fixing member, wherein said positioning member is provided with a positioning column, and said fixing member fixes said detected part to said positioning column.