CN214427755U - Frame and processing box - Google Patents

Abstract

The utility model relates to a frame and processing box that has this frame, the frame includes relative upper surface and lower surface, relative front surface and rear surface and relative left surface and right surface, upper surface, lower surface, front surface, rear surface, left surface and right surface enclose to close and form the cavity that is used for holding the carbon dust, and wherein, upper surface and lower surface, left surface and right surface all are parallel to each other, and the frame still includes the arch of extending to the direction of keeping away from the cavity from the rear surface and the sunken of protruding adjacent setting, therefore, this frame can be held more carbon dust.

Description

Frame and processing box

Technical Field

The utility model relates to an electrophotographic imaging field especially relates to a frame in processing box and this processing box.

Background

The process cartridge is a consumable of an electrophotographic image forming apparatus, and when the electrophotographic image forming apparatus is operated, the process cartridge causes an image to be formed on a medium by consuming toner stored therein. Generally, the process cartridge has an integrated type and a split type, the integrated type means that the process cartridge comprises a unit for accommodating the photosensitive member in addition to a unit for accommodating the toner, and the integrated type and the split type are combined into a whole, the split type means that the unit for accommodating the photosensitive member is arranged in the electrophotographic image forming apparatus, or the unit and the unit for accommodating the toner are formed separately, and the unit can be transported and sold separately, and only when the end user needs to use the split type and the unit, the unit and the unit can be combined together.

The more toner that is contained in a process cartridge, the lower the cost of use of the process cartridge, and therefore, it is necessary for a process cartridge manufacturer to consider how to expand the toner capacity of the process cartridge based on the existing process cartridge to meet the user's needs.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a frame construction of processing box is changed, and then reaches the purpose of enlarging carbon dust capacity, and the concrete scheme is as follows:

a frame comprises an upper surface, a lower surface, a front surface, a rear surface, a left surface and a right surface which are opposite, wherein the upper surface, the lower surface, the front surface, the rear surface, the left surface and the right surface enclose a cavity for containing carbon powder, the upper surface, the lower surface, the left surface and the right surface are parallel to each other, the frame further comprises a protrusion extending from the rear surface to a direction far away from the cavity, and a recess arranged adjacent to the protrusion.

The recess is provided with a first end and a second end which are opposite to each other along the direction from the upper surface to the lower surface, the points, farthest from the cavity, of the protrusions are connected to form a straight line L along the longitudinal direction of the frame, a virtual plane is formed by the points, passing through the straight line L, perpendicular to the left surface and the right surface, and the distance from the first end to the virtual plane is smaller than the distance from the second end to the virtual plane.

Or, along the longitudinal direction of the frame, the points of the bulges farthest away from the cavity are connected to form a straight line L, a virtual plane is formed by passing through the straight line L and being perpendicular to the left surface and the right surface, and the distance between the depressions and the virtual plane is gradually increased along the direction from the upper surface to the lower surface.

Alternatively, the recess may be recessed inwardly of the cavity in a direction from the upper surface towards the lower surface.

Correspondingly, the lower surface is also provided with a groove matched with the second end of the recess.

Preferably, the protrusions are provided in two, the recess is located between the two protrusions, the recess is located in the middle of the frame in the longitudinal direction of the frame, and the two protrusions are located on both sides of the recess, respectively.

The frame comprises a face cover and a bottom shell which are combined with each other, wherein the protrusions and the depressions are arranged on the face cover, and the grooves are arranged on the bottom shell.

The utility model also provides a processing box, this processing box as above the frame, install the play powder sword of frame upper surface, with the adjacent development piece that sets up of play powder sword, play powder sword and development piece contact.

In addition, the present invention provides still another process cartridge including a drum unit to which a photosensitive member is rotatably mounted and a frame as described above, the drum unit and the frame being combined with each other.

The frame and the processing box with the frame are increased in the space for containing carbon powder.

Drawings

Fig. 1 is a perspective view of a process cartridge according to the present invention.

Fig. 2 is a perspective view of the developing unit in the process cartridge according to the present invention.

Fig. 3A and 3B are perspective views of a toner containing frame in the process cartridge according to the present invention.

Fig. 4 is a schematic view of a split structure of the toner accommodating frame in the process cartridge according to the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a perspective view of a process cartridge according to the present invention; fig. 2 is a perspective view of the developing unit in the process cartridge according to the present invention.

The process cartridge C includes a drum unit C1 and a developing unit C2 coupled to each other, the drum unit C1 and the developing unit C2 being coupled in a hinged manner, the drum unit C1 including a first frame 1 and a photosensitive member 2 rotatably mounted in the first frame, toner being contained in the developing unit C2, the developing unit C2 including a second frame 3, a developing member 4 rotatably mounted in the second frame, the developing member 4 being opposed to the photosensitive member 2, and toner being contained in the second frame 3, the second frame 3 including a face cover 31 and a bottom case 32 coupled to each other, the toner being contained in a cavity 33 (shown in fig. 4) defined by the face cover 31 and the bottom case 32. When the process cartridge is operated, the toner discharging blade 5 adjusts the thickness of the toner on the surface of the developing member 4, and at the same time, the toner on the surface of the developing member 4 is frictionally charged with the rotation of the developing member 4, and then, the toner is supplied to the surface of the photosensitive member 2.

FIGS. 3A and 3B are perspective views of a toner containing frame in the process cartridge according to the present invention; fig. 4 is a schematic view of a split structure of the toner accommodating frame in the process cartridge according to the present invention.

As described above, the toner is accommodated in the second frame 3, and thus, the second frame 3 may also be referred to as a toner accommodating frame, that is, when the developing member 4 and the doctor blade 5 are no longer mounted on the second frame 3 and the cavity 33 is independent of each other, the toner accommodating frame refers to the cavity 33; further, as described in the background art, when the process cartridge C is of a split type, the second frame 3 on which the developing member 4 and the powder discharging blade 5 are mounted can also be a separate product, and in this case, the process cartridge refers only to the second frame 3 and the toner cartridge component accommodated therein. As shown in the figure, the second frame 3 includes an upper surface 3a, a lower surface 3f, a front surface 3b, a rear surface 3e, a left surface 3c, and a right surface 3d, wherein the upper surface 3a, the lower surface 3f, the front surface 3b, and the rear surface 3e extend in the longitudinal direction of the process cartridge, the doctor blade 5 is mounted on the upper surface 3a, the lower surface 3f is opposed to the upper surface 3a, the front surface 3b is connected to the upper surface 3a and the lower surface 3f, the rear surface 3e is connected to the lower surface 3f, and the rear surface 3e is opposed to the front surface 3b, and the left surface 3c and the right surface 3d are respectively located at both ends in the longitudinal direction of the process cartridge, and are disposed in opposition; preferably, the upper surface 3a and the lower surface 3f are parallel to each other, and the left surface 3c and the right surface 3d are parallel to each other, so that the volume of the cavity 33 can be increased.

As shown in fig. 3A, the second frame 3 further includes a toner adding port 7 disposed on one surface, and generally, the service lives of the developing member 4, the toner discharging blade 5, the photosensitive member 2, and other components in the process cartridge are designed to be longer than the predetermined service life of the process cartridge, so that, when the toner in the process cartridge is consumed, an end user can replenish new toner into the cavity 33 through the toner adding port 7 so that the process cartridge can be reused.

As shown in fig. 3B and 4, the second frame 3 further includes an arc-shaped protrusion 311 extending from the rear surface 3e in a direction away from the cavity 33, and a recess 312 disposed adjacent to the arc-shaped protrusion 311, the recess 312 enables an end user to easily grip the second frame 3, and at the same time, the arc-shaped protrusion 311 increases the volume of the cavity 33, and the cavity 33 can accommodate more carbon powder.

Further, along the direction from the upper surface 3a to the lower surface 3f, the recess 312 has a first end 312a and a second end 312b opposite to each other, and assuming that a straight line connecting points of the arc-shaped protrusions 311 farthest from the cavity 33 is L, a virtual plane exists through the straight line L and perpendicular to the left and right surfaces, a distance from the first end 312a to the virtual plane is smaller than a distance from the second end 312b to the virtual plane, or in other words, along the direction from the upper surface 3a to the lower surface 3f, a distance from the recess 312 to the virtual plane gradually increases, which is embodied in the shape of the first frame, that is, along the direction from the upper surface 3a to the lower surface 3f, the recess 312 is recessed into the cavity 33; accordingly, as shown in fig. 4, the bottom case 32 (lower surface 3f) is further provided with a groove 321 matching with the recessed second end 312b, and when the cover 31 is combined with the bottom case 32 by welding or adhering, the second end 312b is correspondingly combined with the groove 321.

Further, the arc-shaped protrusions 311 are provided in two along the longitudinal direction of the process cartridge, and the recess 312 is located between the two arc-shaped protrusions 311, preferably, the recess 312 is located at the middle of the second frame 3 along the longitudinal direction of the process cartridge, and the two arc-shaped protrusions 311 are located at both sides of the recess 312, respectively, and finally, the toner accommodating space of the second frame 3 is increased.

The arc-shaped protrusion 311 may be deformed in other shapes, such as a square protrusion, an irregular protrusion, etc., and no matter what shape the protrusion 311 has, the space formed by the protrusion of the protrusion 311 relative to the rear surface 3e is communicated with the cavity 33, so as to increase the volume of the cavity 33; meanwhile, when the protrusion 311 has a shape other than an arc shape, the L refers to a straight line formed by connecting points farthest from the cavity 33 through the protrusion 311.

It should be noted that the recess 312 is provided to facilitate the end user to grip the second frame 3, and the recess 312 is provided to be recessed into the cavity 33 as described above to help prevent the end user's hand from touching the developing member, as shown in the figure, the first end 312a is closer to the developing member 4 than the second end 312b, and the developing member 4 is opposite to the photosensitive member 2, and when the end user grips the process cartridge from the direction of the photosensitive member 2 toward the lower surface 3f of the second frame 3, the recess 312 is provided to make the end user's hand "hooked" as if it were without slipping to the positions of the developing member 4 and the photosensitive member 2; when the end user grips the process cartridge from the lower surface 3f toward the photosensitive member 2, the groove 312 prevents the end user's hand from moving toward a position close to the developing member 4 and the photosensitive member 2, thereby achieving the object of preventing the developing member 4 and the photosensitive member 2 from being touched.

Claims (10)

1. A frame comprises an upper surface, a lower surface, a front surface, a rear surface, a left surface and a right surface which are opposite, wherein the upper surface, the lower surface, the front surface, the rear surface, the left surface and the right surface enclose a cavity for containing carbon powder, the upper surface, the lower surface, the left surface and the right surface are parallel to each other, and the frame is characterized by further comprising a protrusion extending from the rear surface to a direction far away from the cavity and a recess arranged adjacent to the protrusion.

2. A frame as claimed in claim 1, characterized in that the recess has opposite first and second ends in the direction from the upper surface towards the lower surface, the points of the protrusion furthest from the cavity in the longitudinal direction of the frame being connected to form a straight line L, passing through the straight line L and making a virtual plane perpendicular to the left and right surfaces, the distance from the first end to the virtual plane being smaller than the distance from the second end to the virtual plane.

3. A frame as claimed in claim 1, characterized in that points of the protrusions furthest from the cavity in the longitudinal direction of the frame are connected to form a straight line L, and that a virtual plane is formed through the straight line L and perpendicular to the left and right surfaces, and that the distance of the depressions from the virtual plane increases in the direction from the upper surface to the lower surface.

4. A frame as claimed in claim 1, wherein the depression is recessed into the cavity in a direction from the upper surface towards the lower surface.

5. A frame according to any of claims 2-4, wherein the lower surface is further provided with a groove matching the second end of the recess.

6. A frame as claimed in claim 5, in which the projections are provided in two, with the recess being located between the two projections.

7. A frame as claimed in claim 6, characterized in that, in the longitudinal direction of the frame, the recess is located in the middle of the frame, and the two protrusions are located on either side of the recess.

8. A frame as claimed in claim 7, wherein the frame comprises a face cover and a base shell coupled to each other, the protrusions and depressions being provided on the face cover and the recesses being provided on the base shell.

9. A process cartridge comprising a frame according to any one of claims 1 to 8, a powder discharging blade mounted on an upper surface of the frame, and a developing member disposed adjacent to the powder discharging blade, the powder discharging blade being in contact with the developing member.

10. A process cartridge comprising a drum unit to which a photosensitive member is rotatably mounted and a frame according to any one of claims 1 to 8, the drum unit and the frame being coupled to each other.

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