Developing box limiting device

Abstract

The application discloses a developing box limiting device, and aims to provide a developing box limiting device capable of limiting the shaking of a developing box within an allowable range. The application comprises a developing box, wherein a storage medium, a developing roller shaft, a driving piece and a limiting piece are arranged on the developing box; the developing roller shaft is rotationally connected with a developing roller; the driving piece drives the developing roller to rotate; the limiting piece is provided with a limiting part and a limiting protrusion; the limiting piece can rotate relative to the developing box; the limiting part is used for limiting when the limiting piece rotates; and the limiting protrusion is matched with a printer groove when the developing box is installed. The application is applied to the technical field of developing boxes.

Description

Technical Field

[0001] This invention relates to the technical field of developing cartridges, and particularly to a developing cartridge limiting device. Background Technology

[0002] In existing technology, the developer cartridge is attached to the drum unit and installed in the printer together with the drum unit. When the printer is working, the developer cartridge will wobble to some extent, which will affect the print quality. However, if the developer cartridge is fixed directly in the printer, poor contact between the developer roller and the photosensitive drum may occur due to design errors. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a developing cartridge limiting device that can limit the shaking of the developing cartridge within an allowable range.

[0004] The technical solution adopted in this invention is as follows: This invention includes a developing cartridge, on which a storage medium, a developing roller shaft, a driving component, and a limiting component are provided. The developing roller shaft is rotatably connected to the developing roller. The driving component drives the developing roller to rotate. The limiting component has a limiting part and a limiting protrusion. The limiting component can rotate relative to the developing cartridge. The limiting part limits the rotation of the limiting component. The limiting protrusion cooperates with the printer groove when the developing cartridge is installed.

[0005] Furthermore, one end of the limiting member is connected to a rotating part, and the other end of the limiting protrusion can rotate relative to one end of the limiting member.

[0006] Furthermore, the limiting member includes a flexible rod, and the limiting protrusion is disposed on the flexible rod.

[0007] Furthermore, the rotating part is one of a rotating shaft, a hinge, or a torsion spring.

[0008] Furthermore, the limiting member is connected to the developing cartridge via a mounting bracket or bearing.

[0009] Furthermore, the limiting part includes a first limiting part and a first limiting surface. The first limiting part is located at the end of the flexible rod, and the first limiting surface is located on the mounting bracket. The first limiting part corresponds to the first limiting surface.

[0010] Furthermore, the limiting part includes a second limiting part and a second limiting surface. The second limiting part is located on the limiting protrusion, and the second limiting surface is located on the mounting bracket. The first limiting part corresponds to the first limiting surface.

[0011] Furthermore, the end of the limiting protrusion closest to the developing roller shaft is the small-diameter end, and the end of the limiting protrusion furthest from the developing roller shaft is the large-diameter end, with the small-diameter end being tapered.

[0012] Furthermore, the limiting protrusion includes a first limiting plate and a second limiting plate, with one end of the first limiting plate connected to one end of the second limiting plate and being tapered.

[0013] Furthermore, the developing cartridge includes a first housing and a second housing, the first housing being disposed on the second housing, and a developer chamber being disposed between the first housing and the second housing.

[0014] The beneficial effects of this invention are:

[0015] In contrast to the shortcomings of existing technologies, this invention provides a limiting member on the developing cartridge. When the developing cartridge is installed on the printer, the limiting protrusion engages with the printer's groove to limit the position of the developing cartridge, preventing poor contact between the developing cartridge and the photosensitive drum. Furthermore, the limiting member can rotate relative to the developing cartridge, and its rotation range is limited by the limiting part, thereby limiting the range of movement of the developing cartridge. This allows the developing cartridge to have a smaller range of movement for closer contact with the photosensitive drum, thus improving print quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the limiting member of the present invention;

[0020] Figure 4 This is a schematic diagram of the planar structure of the limiting member of the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of the limiting protrusion and bearing component of the present invention;

[0022] Figure 6 This is a schematic diagram of the planar structure of the first limiting plate and the second limiting plate of the present invention.

[0023] The attached figures are labeled as follows:

[0024] 1. Developing box; 2. Developing roller shaft; 3. Drive component; 4. Limiting part; 5. Limiting component; 6. Limiting protrusion; 7. Flexible rod; 8. Mounting bracket; 9. Bearing component; 10. Small diameter end; 11. Large diameter end; 12. First limiting plate; 13. Second limiting plate; 15. First housing; 16. Second housing; 20. First limiting part; 21. First limiting surface; 22. Second limiting part; 23. Second limiting surface.

[0025] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, clockwise, counterclockwise, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, the user should consider such a combination of technical solutions to be non-existent and not within the scope of protection claimed by this invention.

[0029] Example 1:

[0030] like Figures 1 to 4As shown, in this embodiment, the present invention includes a developing cartridge 1, on which a storage medium, a developing roller shaft 2, a driving member 3, and a limiting member 5 are disposed. The developing roller shaft 2 is rotatably connected to the developing roller, the driving member 3 drives the developing roller to rotate, and the limiting member 5 has a limiting part 4 and a limiting protrusion 6. The limiting member 5 is rotatable relative to the developing cartridge 1, the limiting part 4 limits the rotation of the limiting member 5, and the limiting protrusion 6 cooperates with the printer groove when the developing cartridge 1 is installed.

[0031] For ease of explanation, the installation direction of the developing cartridge 1 is defined as the first direction, the axial direction of the developing roller is defined as the second direction, and the rotation direction of the limiting member 5 is defined as the third direction. The first direction and the second direction are in the same plane, the third direction is perpendicular to the plane in which the first direction and the second direction are located, and the limiting member 5 protrudes towards the side away from the developing cartridge 1 in the second direction.

[0032] The storage medium and the drive unit 3 are both located on one side of the developing cartridge 1, while the limiting unit 5 is located on the other side of the developing cartridge 1.

[0033] In contrast to the shortcomings of existing technologies, this invention provides a limiting member 5 on the developing cartridge 1. When the developing cartridge 1 is installed on the printer, the limiting protrusion 6 engages with the printer groove to limit the position of the developing cartridge 1, thus preventing poor contact between the developing cartridge 1 and the photosensitive drum. Furthermore, the limiting member 5 can rotate relative to the developing cartridge 1, and the limiting part 4 limits the rotation range of the limiting member 5, thereby limiting the wobbling range of the developing cartridge 1. This allows the developing cartridge 1 to have a smaller range of wobbling so as to make closer contact with the photosensitive drum, thereby improving print quality.

[0034] In this embodiment, one end of the limiting member 5 is connected to a rotating part, and the other end of the limiting protrusion 6 can rotate relative to one end of the limiting member 5; the rotating part is one of a rotating shaft, a hinge, or a torsion spring. Specifically, one end of the limiting member 5 can be connected to the side end of the developing cartridge 1 through the rotating part, so that the other end of the limiting protrusion 6 can rotate relative to one end of the limiting member 5, thereby realizing the movement of the limiting member 5 and allowing the limiting member 5 to rotate relative to the developing cartridge 1; wherein, one end of the limiting member 5 can be rotatably connected to the side end of the developing cartridge 1 through one of a rotating shaft, a hinge, or a torsion spring.

[0035] like Figures 4 to 5 As shown, in this embodiment, the limiting member 5 is connected to the developing cartridge 1 via a mounting bracket 8 or a bearing member 9. Specifically, the limiting member 5 can be directly connected to the developing cartridge 1, or it can be connected to the developing cartridge 1 via a mounting bracket 8, or it can be connected to the developing cartridge 1 via a bearing member 9; wherein, the mounting bracket 8 or the bearing member 9 can be connected to the side end of the developing cartridge 1 via screws, and the limiting member 5 and the mounting bracket 8 can be an integrated structure.

[0036] like Figure 4 As shown, in this embodiment, the end of the limiting protrusion 6 near the developing roller shaft 2 is the small-diameter end 10, and the end of the limiting protrusion 6 away from the developing roller shaft 2 is the large-diameter end 11. The small-diameter end 10 is tapered. Specifically, by setting the small-diameter end 10 of the developing roller shaft 2 to be tapered, the small-diameter end 10 of the limiting protrusion 6 can easily enter into the printer groove to position the developing cartridge 1.

[0037] like Figure 1 As shown, in this embodiment, the developing cartridge 1 includes a first housing 15 and a second housing 16. The first housing 15 is disposed on the second housing 16, and a developer chamber is provided between the first housing 15 and the second housing 16. Specifically, the limiting member 5 can be directly connected to the side end of the first housing 15 or directly connected to the side end of the second housing 16.

[0038] Example 2:

[0039] The difference between Embodiment 2 and Embodiment 1 lies in the specific structure of the limiting member 5, as detailed below:

[0040] like Figures 3 to 4 As shown, in this embodiment, the limiting member 5 includes a flexible rod 7, and the limiting protrusion 6 is disposed on the flexible rod 7. Specifically, due to the deformation of the flexible rod 7, the limiting protrusion 6 can rotate relative to the developing cartridge 1 when it engages with the printer groove, so as to achieve a certain amount of shaking of the developing cartridge 1 relative to the printer.

[0041] like Figure 4 As shown, in this embodiment, the limiting part 4 includes a first limiting part 20 and a first limiting surface 21. The first limiting part 20 is located at the end of the flexible rod 7, and the first limiting surface 21 is located on the mounting bracket 8. The first limiting part 20 corresponds to the first limiting surface 21. Specifically, when the flexible rod 7 deforms to achieve the rotation of the limiting protrusion 6, the first limiting surface 21 located on the mounting bracket 8 limits the first limiting part 20 located at the end of the flexible rod 7, so as to ensure that the developing cartridge 1 only shakes within a certain range.

[0042] Example 3:

[0043] The difference between Embodiment 3 and Embodiment 2 lies in the specific structure of the limiting part 4, as follows:

[0044] like Figure 4As shown, in this embodiment, the limiting part 4 includes a second limiting part 22 and a second limiting surface 23. The second limiting part 22 is located on the limiting protrusion 6, and the second limiting surface 23 is located on the mounting bracket 8. The first limiting part 20 corresponds to the first limiting surface 21. Specifically, when the limiting protrusion 6 rotates, the second limiting surface 23 located on the mounting bracket 8 limits the second limiting part 22 located on the limiting protrusion 6 to ensure that the developing cartridge 1 only shakes within a certain range.

[0045] It should be noted that the specific structure of the limiting part 4 in Embodiment 3 or Embodiment 2 can be used to ensure that the developing cartridge 1 only shakes within a certain range, or the specific structures of the limiting part 4 in Embodiment 3 and Embodiment 2 can be used simultaneously to ensure that the developing cartridge 1 only shakes within a certain range.

[0046] Example 4:

[0047] The difference between Embodiment 4 and Embodiment 1 lies in the specific structure of the limiting protrusion 6. The limiting protrusion 6 in Embodiment 4 is a hollow structure, unlike the solid structure of the limiting protrusion 6 in Embodiment 1, as detailed below:

[0048] like Figure 6 As shown, in this embodiment, the limiting protrusion 6 includes a first limiting plate 12 and a second limiting plate 13. One end of the first limiting plate 12 is connected to one end of the second limiting plate 13 and is tapered. Specifically, by connecting one end of the first limiting plate 12 to one end of the second limiting plate 13 and forming a tapered shape, the tapered end of the limiting protrusion 6 can easily enter the printer groove to engage and position the developing cartridge 1.

[0049] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A developing cartridge limiting device, characterized in that: It includes a developing cartridge (1), on which a storage medium, a developing roller shaft (2), a driving member (3) and a limiting member (5) are provided. The developing roller shaft (2) is rotatably connected to the developing roller. The driving member (3) drives the developing roller to rotate. The limiting member (5) has a limiting part (4) and a limiting protrusion (6). The limiting member (5) can rotate relative to the developing cartridge (1). The limiting part (4) limits the rotation of the limiting member (5). The limiting protrusion (6) cooperates with the printer groove when the developing cartridge (1) is installed. The limiting member (5) includes a flexible rod (7), and the limiting protrusion (6) is disposed on the flexible rod (7); the limiting member (5) is connected to the developing cartridge (1) through a mounting bracket (8) or a bearing (9); wherein, the limiting part (4) includes a first limiting part (20) and a first limiting surface (21), the first limiting part (20) is located at the end of the flexible rod (7), the first limiting surface (21) is located on the mounting bracket (8), and the first limiting part (20) corresponds to the first limiting surface (21); the limiting part (4) includes a second limiting part (22) and a second limiting surface (23), the second limiting part (22) is located on the limiting protrusion (6), the second limiting surface (23) is located on the mounting bracket (8), and the second limiting part (22) corresponds to the second limiting surface (23).

2. The developing cartridge limiting device according to claim 1, characterized in that: One end of the limiting member (5) is connected to a rotating part, and the other end of the limiting protrusion (6) can rotate relative to one end of the limiting member (5).

3. The developing cartridge limiting device according to claim 2, characterized in that: The rotating part is one of a rotating shaft, a hinge, or a torsion spring.

4. The developing cartridge limiting device according to claim 1, characterized in that: The end of the limiting protrusion (6) near the developing roller shaft (2) is the small diameter end (10), and the end of the limiting protrusion (6) away from the developing roller shaft (2) is the large diameter end (11). The small diameter end (10) is tapered.

5. The developing cartridge limiting device according to claim 1, characterized in that: The limiting protrusion (6) includes a first limiting plate (12) and a second limiting plate (13), one end of the first limiting plate (12) is connected to one end of the second limiting plate (13) and is tapered.

6. The developing cartridge limiting device according to claim 1, characterized in that: The developing cartridge (1) includes a first housing (15) and a second housing (16), the first housing (15) is disposed on the second housing (16), and a developer chamber is disposed between the first housing (15) and the second housing (16).

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