Processing box

Abstract

The utility model discloses a processing box. The processing box is detachably arranged in an accommodating cavity in an image forming equipment main body; a positioning part and a limiting part are arranged at the top of the accommodating cavity; the processing box comprises a drum unit, a developing unit and a rib plate; the drum unit comprises a drum frame and a photosensitive drum; the photosensitive drum is arranged in the longitudinal direction of the drum frame and can rotate around a rotating shaft; the developing unit comprises a developing frame and a developing roller; the rib plate is arranged on the drum frame or the developing frame, protrudes towards the main body of the image forming equipment and extends along the mounting direction of the process cartridge; the side surfaces of the rib plates are matched with the positioning parts and / or the limiting parts in the longitudinal direction in the mounting process of the processing box; the processing box can be prevented from interfering or colliding with the ribs on the main body of the image forming equipment in the installation process, and has the advantages of simple structure and smooth installation.

Description

Technical Field

[0001] The utility model relates to the field of image forming equipment, in particular to a processing box. Background Art

[0002] The process cartridge is usually detachably mounted on the main body of an image forming device such as a laser printer, a copier, or a fax machine. Figure 1-Figure 2 As shown, the device body includes a positioning portion 101 and a limiting portion 100, and a positioned portion 121 and a limiting portion 120 are provided on the processing box. The positioned portion 121 can be engaged with the positioning portion 101 of the device body to position the processing box relative to the device body in the direction of the rotation axis; the limited portion 120 is configured to be able to engage with the limiting portion 100 to adjust the movement of the box along the direction of the rotation axis.

[0003] However, the positioned portion and the restricted portion of the processing box of the above structure are both recessed portions, which are specifically narrow guide groove structures. During the installation of the processing box, the ribs on both sides of the guide groove structure easily collide with the ribs on the image forming device, resulting in an unsmooth installation process. Utility Model Content

[0004] The main purpose of the utility model is to provide a processing box with a simple structure and smooth installation.

[0005] In order to achieve the above-mentioned main purpose, the utility model provides a processing cartridge that can be detachably installed in a accommodating cavity in a main body of an image forming device; a positioning portion and a limiting portion are provided on the top of the accommodating cavity, the positioning portion is a convex portion, the positioning portion protrudes in a direction close to the processing cartridge and extends along the installation direction of the processing cartridge; the limiting portion is a convex portion, the limiting portion protrudes in a direction close to the processing cartridge and extends along the installation direction of the processing cartridge; when viewed from the installation direction of the processing cartridge, the limiting portion is arranged to at least partially overlap with the positioning portion; the processing cartridge comprises: a drum unit, comprising a drum frame and a photosensitive drum; the The photosensitive drum is arranged along the longitudinal direction of the drum frame and is configured to rotate around a rotation axis; the developing unit includes a developing frame and a developing roller, the developing frame is provided with a developer accommodating chamber for accommodating the developer, the developing roller is rotatably supported on the developing frame, and the developer in the developer accommodating chamber is supplied to the photosensitive drum via the developing roller; a rib plate is arranged on the drum frame or the developing frame, the rib plate protrudes toward the image forming device body and extends along the installation direction of the processing box; during the installation of the processing box, the side surface of the rib plate cooperates with the positioning portion and / or the limiting portion in the longitudinal direction.

[0006] Furthermore, the longitudinal direction is perpendicular to the installation direction, and the rib is arranged on an opposite side of the positioning portion and the limiting portion in the longitudinal direction.

[0007] Furthermore, the rib is provided corresponding to the limiting portion or the positioning portion, and during the installation of the processing cartridge, the side surface of the rib can contact the limiting portion or the positioning portion in the longitudinal direction to form a guide.

[0008] Furthermore, the rib is provided corresponding to the positioning portion or the limiting portion, and when the processing box is installed in place, the side surface of the rib can form an abutment limit with the positioning portion or the limiting portion in the longitudinal direction.

[0009] Furthermore, there are multiple ribs, which are spaced apart in the installation direction of the processing box and correspond to the positioning portion and / or the limiting portion respectively.

[0010] Furthermore, the rib plate includes a first rib plate and a second rib plate; during the installation of the processing box, the side surface of the first rib plate can contact the limiting portion in the longitudinal direction to form a guide, and when the processing box is installed in place, the side surface of the second rib plate can form an abutment limit with the positioning portion in the longitudinal direction.

[0011] Furthermore, the first rib plate and the second rib plate are respectively located on opposite sides of the limiting portion and the positioning portion.

[0012] Furthermore, the first rib and the second rib are located on the same side of the limiting portion and the positioning portion.

[0013] Furthermore, the plurality of ribs correspond to the positioning portion or the limiting portion; wherein the plurality of ribs are located on the positioning portion or on opposite sides of the positioning portion, and different ribs are staggered with each other in the installation direction of the processing box.

[0014] Furthermore, in the longitudinal direction, the projections of the plurality of ribs do not overlap with each other.

[0015] The processing box of the utility model does not form a guide groove type limit on the positioning part and the limiting part, which reduces the interference or collision between the processing box and the ribs on the image forming device body during installation, and has the advantages of simple structure and smooth installation.

[0016] In order to more clearly illustrate the purpose, technical solutions and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the prior art in which the process cartridge is installed in place;

[0018] Figure 2 It is a schematic diagram of the process of installing the processing box in the prior art.

[0019] Figure 3 This is a first perspective view of the processing cartridge of the present utility model;

[0020] Figure 4 This is a second perspective view of the processing cartridge of the present invention;

[0021] Figure 5 It is a partial enlarged view of the driving side of the process cartridge embodiment 1 of the present invention;

[0022] Figure 6 It is a partial enlarged view of the driving side of the process cartridge embodiment 2 of the present utility model;

[0023] Figure 7 It is a partial enlarged view of the driving side of the processing box embodiment 2 of the present utility model. DETAILED DESCRIPTION

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0025] The process cartridge of the embodiment of the present invention can be detachably mounted in the accommodating cavity of the image forming apparatus body, such as Figure 1-2 As shown, a positioning portion 101 and a limiting portion 100 are provided at the top of the accommodating cavity; the positioning portion 101 is a convex portion, such as a rib or a tendon, which protrudes in a first direction perpendicular to the installation direction of the processing box toward the direction close to the processing box and extends along the installation direction of the processing box; similarly, the limiting portion 100 is also a convex portion, such as a rib or a tendon, which protrudes in a second direction perpendicular to the installation direction of the processing box toward the direction close to the processing box and extends along the installation direction of the processing box; when viewed from the installation direction of the processing box, the limiting portion 100 is configured to at least partially overlap with the positioning portion 101.

[0026] like Figure 3 As shown, the processing box of the present invention includes a drum unit 10 and a developing unit 20; the drum unit 10 includes a drum frame 11 and a photosensitive drum 12, the photosensitive drum 12 is arranged along the longitudinal direction of the drum frame 11 and is configured to rotate around a rotation axis; the developing unit 20 includes a developing frame 21 and a developing roller, a developer accommodating chamber for accommodating developer is provided in the developing frame 21, the developing roller is rotatably supported in the developing frame 21, and the developer in the developer accommodating chamber can be supplied to the photosensitive drum 12 through the developing roller.

[0027] In the longitudinal direction, the side of the processing box that receives the driving force from the image forming device body is defined as the driving side, and the other side opposite thereto is defined as the non-driving side; wherein, the drum frame 11 includes a frame body 13 and two end covers, and the two end covers can be prefabricated as one body with the frame body 11 or detachably connected as one body, and the two end covers are respectively the driving side end cover 14 and the non-driving side end cover 15; in other embodiments, the two end covers can also be prefabricated as one body with the developing frame 21 or detachably connected as one body, which will not be expanded here.

[0028] Furthermore, a driving force receiving portion 30 is provided on the driving side of the process cartridge, and the driving force receiving portion 30 is used to receive driving force from the image forming apparatus body, thereby directly or indirectly rotating the photosensitive drum 12 and the developing roller, for example, through a transmission mechanism.

[0029] The installation direction of the processing box of the embodiment of the present invention is perpendicular to the longitudinal direction; wherein, Figure 1 As shown, the image forming apparatus body is provided with a cartridge pressing member 2. When the process cartridge is installed in place, the cartridge pressing member 2 limits the process cartridge to maintain the process cartridge in the correct installation position. Specifically, there are two cartridge pressing members 2, and the two cartridge pressing members 2 press on the drive side and non-drive side of the process cartridge in the installation direction, specifically, press on the drive side end cover 14 and the non-drive side end cover 15 from the opposite rear sides in the installation direction, thereby maintaining the process cartridge in the correct installation position.

[0030] In order to reduce the possibility of interference or collision with the ribs on the main body of the image forming device during the assembly of the processing box, in some embodiments of the present invention, the driving side end cover 14 of the drum frame 11 is provided with a rib plate 16 for cooperating with the positioning portion 101 and / or the limiting portion 100, and the rib plate 16 protrudes from the upper surface of the driving side end cover 14 toward the main body of the image forming device and extends along the installation direction of the processing box; during the installation of the processing box, the side surface of the rib plate 16 can preferably contact the limiting portion in the longitudinal direction to form a guide, and when the processing box is installed in place, the side surface of the rib plate 16 can preferably form an abutment limit with the positioning portion in the longitudinal direction, so that the processing box can be installed in place more smoothly and stably.

[0031] The number of ribs 16 can be multiple, for example, two, and the two ribs 16 are spaced apart in the installation direction of the processing box and correspond to the positioning part and the limiting part respectively; the two ribs 16 are respectively a first rib 16a and a second rib 16b; wherein, the first rib 16a corresponds to the limiting part, and the second rib 16b corresponds to the positioning part; during the installation of the processing box, the side surface of the first rib 16a can contact the limiting part 100 in the longitudinal direction to form a guide, and when the processing box is installed in place, the side surface of the second rib 16b can form abutment limit with the positioning part 101 in the longitudinal direction.

[0032] In such Figure 3-5 In the embodiment 1 shown, the two ribs 16 are located on opposite sides of the limiting portion 100 and the positioning portion 101. Figure 5 , the first rib 16a is, for example, located on the first side farther away from the driving side in the longitudinal direction, and the second rib 16b is, for example, located on the second side closer to the driving side in the longitudinal direction; in an optional embodiment, the first rib 16a can also be located on the first side closer to the driving side, and the second rib 16b is, for example, located on the second side farther away from the driving side; in another optional embodiment, the first rib 16a and the second rib 16b can also be located at the first side closer to the driving side or the second side farther away from the driving side at the same time. As another variation of Example 1, the two ribs 16 can also correspond to the positioning portion 101 or the limiting portion 100; wherein, for example, the multiple ribs 16 are located on opposite sides of the positioning portion 101, and the two ribs 16 are staggered in the installation direction of the processing box, that is, the projections of the two ribs 16 do not overlap in the longitudinal direction; similarly, in other embodiments, the multiple ribs 16 can also be located on opposite sides of the limiting portion 100, and the two ribs 16 are staggered in the installation direction of the processing box, that is, the projections of the two ribs 16 do not overlap in the longitudinal direction.

[0033] The number of the rib 16 can also be one; Figure 6 In the second embodiment shown, the rib 16 corresponds to the positioning portion 101. When the process cartridge is installed in place, the side of the rib 16 can form an abutment limit with the positioning portion in the longitudinal direction. In the longitudinal direction, the rib 16 is preferably located on the first side closer to the driving side. In an optional embodiment, the rib 16 can also be located on the second side farther away from the driving side. In another optional embodiment, the rib 16 can also correspond to the limiting portion 100. During the installation of the process cartridge, the side of the rib 16 can contact the limiting portion in the longitudinal direction to form a guide. Specifically, the rib 16 can be located on the first side closer to the driving side or on the second side farther away from the driving side in the longitudinal direction. This will not be elaborated here.

[0034] As a variation of Example 2, the rib 16 may include a plurality of sub-ribs spaced apart from each other, and the plurality of sub-ribs together form the rib 16. The shape of the sub-ribs is not limited here, so it will not be elaborated. In other embodiments of the present invention, a side surface of the driving side end cover 14 facing the positioning portion and the limiting portion is integrally formed with a relief portion, that is, no protruding structure is provided on the side surface of the driving side end cover 14 facing the positioning portion and the limiting portion, such as Figure 7Example 3 shown; during the installation of the processing box of Example 3, the side surface of the above-mentioned drive side end cover 14 does not form a guide in the installation direction for the limiting part and does not form a limit in the longitudinal direction for the positioning part, thereby reducing the interference and collision of the ribs on the image forming device body during the assembly of the processing box, and completing the installation of the processing box more directly and smoothly.

[0035] Furthermore, during the assembly of the processing box of Example 3, the avoidance position formed by the entire side surface of the driving side end cover 14 facing the positioning part and the limiting part can still abut against the non-longitudinal surface of the positioning part and the limiting part to facilitate the smooth assembly of the processing box.

[0036] Although the present invention has been described above through embodiments, it should be understood that the above embodiments are only used to exemplarily describe the feasible implementation plans of the present invention and should not be interpreted as limiting the scope of protection of the present invention. That is, any replacement or change made by those skilled in the art in accordance with the present invention should also be covered by the scope of protection of the claims of the present invention.

Claims

1. A process cartridge removably mounted in an accommodating chamber in a main body of an image forming apparatus; a positioning portion and a limiting portion are provided on a top portion of the accommodating chamber, wherein the positioning portion is a convex portion that protrudes toward a direction approaching the process cartridge and extends in the installation direction of the process cartridge; and the limiting portion is a convex portion that protrudes toward a direction approaching the process cartridge and extends in the installation direction of the process cartridge; When viewed from the installation direction of the process cartridge, the restricting portion is arranged to at least partially overlap with the positioning portion; wherein The processing box includes: A drum unit comprising a drum frame and a photosensitive drum; the photosensitive drum is arranged in the longitudinal direction of the drum frame and is configured to be rotatable around a rotation axis; a developing unit comprising a developing frame and a developing roller, wherein a developer accommodating chamber for accommodating a developer is provided in the developing frame, the developing roller is rotatably supported on the developing frame, and the developer in the developer accommodating chamber is supplied to the photosensitive drum via the developing roller; A rib plate is arranged on the drum frame or the developing frame, and the rib plate protrudes toward the main body of the image forming device and extends along the installation direction of the processing box; during the installation of the processing box, the side surface of the rib plate cooperates with the positioning part and / or the limiting part in the longitudinal direction.

2. The process cartridge according to claim 1, wherein: The longitudinal direction is perpendicular to the installation direction, and the rib is arranged on an opposite side of the positioning portion and the limiting portion in the longitudinal direction.

3. The process cartridge according to claim 2, wherein: The rib is provided corresponding to the limiting portion or the positioning portion, and during the installation of the processing cartridge, the side surface of the rib can contact the limiting portion or the positioning portion in the longitudinal direction to form a guide.

4. The process cartridge according to claim 2, wherein: The rib plate is arranged corresponding to the positioning portion or the limiting portion, and when the processing box is installed in place, the side surface of the rib plate can form an abutment limit with the positioning portion or the limiting portion in the longitudinal direction.

5. The process cartridge according to claim 1, wherein: There are multiple ribs, which are spaced apart in the installation direction of the process cartridge and correspond to the positioning portion and / or the limiting portion, respectively.

6. The process cartridge according to claim 5, wherein: The rib plate includes a first rib plate and a second rib plate; during the installation of the processing box, the side surface of the first rib plate can contact the limiting portion in the longitudinal direction to form a guide, and when the processing box is installed in place, the side surface of the second rib plate can form an abutment limit with the positioning portion in the longitudinal direction.

7. The process cartridge according to claim 6, wherein: The first rib plate and the second rib plate are respectively located on opposite sides of the limiting portion and the positioning portion.

8. The process cartridge according to claim 6, wherein: The first rib and the second rib are located on the same side of the limiting portion and the positioning portion.

9. The process cartridge according to claim 5, wherein: The plurality of ribs all correspond to the positioning portion or the limiting portion; wherein, the plurality of ribs are located on the positioning portion or on opposite sides of the positioning portion, and different ribs are staggered with each other in the installation direction of the processing box.

10. The process cartridge according to any one of claims 6 to 9, wherein: In the longitudinal direction, projections of the plurality of ribs do not overlap with each other.

Images