CN201134010Y - Processing box - Google Patents
Processing box Download PDFInfo
- Publication number
- CN201134010Y CN201134010Y CNU2007201791617U CN200720179161U CN201134010Y CN 201134010 Y CN201134010 Y CN 201134010Y CN U2007201791617 U CNU2007201791617 U CN U2007201791617U CN 200720179161 U CN200720179161 U CN 200720179161U CN 201134010 Y CN201134010 Y CN 201134010Y
- Authority
- CN
- China
- Prior art keywords
- photosensitive drums
- shaft portion
- bearing
- spiral gear
- gear part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Electrophotography Configuration And Component (AREA)
Abstract
The utility model relates to a processing box that comprises a photosensitive drum, a photosensitive drum frame that is provided with a side frame, and a drum gear that is arranged at one end of the photosensitive drum. The side frame is provided with a bearing that is arranged concentric with the photosensitive drum and extends towards the photosensitive drum. The drum gear comprises a helical gear part and a shaft part that extends in the inner hole of the helical gear; a gap is arranged between the outer circular surface of the shaft part and the inner circular surface of the helical gear; wherein, the bearing is used for supporting the helical gear. The processing box has the advantage of stable transmission and so on.
Description
Technical field
The utility model relates to the handle box that a kind of electronic photographicing image forming device uses.
Background technology
Such as electronic photographicing image forming devices such as duplicating machine, facsimile recorder, laser printers, use usually removable handle box as a supplement carbon dust container and be engaged in it and form image on the medium.
The application of CN1176506A Chinese invention patent discloses a kind of handle box, and it mainly comprises: the photosensitive drums framework of photosensitive drums and supporting electrofax photosensitive drums.Wherein, the photosensitive drums framework has a side stand, and the position of corresponding photosensitive drums is provided with a bearing portions on the side stand.One end of photosensitive drums is provided with a drum gear, is used for rotary driving force passed to moving components such as charging roller, transfer roll and developer roll.Drum gear comprises spiral gear part, shaft portion and coupling part.Spiral gear partly is the cylindrical of hollow, and shaft portion portion within it extends.Between the external peripheral surface of the inner circumferential surface of spiral gear part and shaft portion, a columniform gap is arranged, when photosensitive drums is mounted on the box framework, the bearing portions that this cylindrical gap has formed side stand is assemblied in space therebetween, thereby by the rotatably mounted shaft portion of bearing portions.The coupling part is positioned at the shaft end of shaft portion, and it can be connected with the master component in the electronic photographicing image forming device, to receive the driving force from master component.
Handle box with said structure, upwards, coupling part and spiral gear are partly overlapping in helical gear footpath, make spiral gear wideer it is axial, and therefore better aspect physical strength and contact-ratio, thereby can obtain qualitative picture.
The utility model is the further technological improvement of having done at above-mentioned prior art.
Summary of the invention
Fundamental purpose of the present utility model provides a kind of more steady reliable handle box of transmission of photosensitive drums.
For achieving the above object, the technical scheme that the utility model provides is: handle box comprises: photosensitive drums; The photosensitive drums framework, it is provided with a side stand, side stand be provided with one with photosensitive drums coaxial and bearing that extend to the photosensitive drums direction; Drum gear is located at an end of photosensitive drums, comprises spiral gear part and the shaft portion that extends in the endoporus of spiral gear part, and is gapped between the external peripheral surface of shaft portion and helical gear inner circumferential surface; Wherein, bearing is bearing in the spiral gear part.
More specifically, the gap between the external peripheral surface of shaft portion and helical gear inner circumferential surface is greater than the wall thickness of bearing.Also promptly, after photosensitive drums is installed on the photosensitive drums framework, in the cylindrical gap of bearing between shaft portion and spiral gear part, and also gapped between the external peripheral surface of the inner circumferential surface of bearing and shaft portion.
Handle box with said structure, photosensitive drums is supported by helical gear inner circumferential surface, is supported by shaft portion with photosensitive drums in the prior art and compares, and the turning radius at supporting position is bigger, and transmission is more steady.
Description of drawings
Fig. 1 is the skeleton view of the utility model handle box;
Fig. 2 is the structural representation of the utility model handle box;
Fig. 3 is the photosensitive drums of the utility model handle box and the assembling synoptic diagram of side stand;
Fig. 4 is the diagrammatic cross-section fragmentary that the photosensitive drums of the utility model handle box cooperates with side stand.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
Embodiment
In conjunction with reference to figure 1, Fig. 2, handle box 100 comprises photosensitive drums 1 with a photographic layer, be used for to photosensitive drums 1 charging charging roller 2, be used for the last electrostatic latent image of photosensitive drums 1 is carried out developer roll 3 and the opening 4 that exposes of video picture.When operation, when photosensitive drums 1 rotation, by charging roller 2 is applied voltage, the circumferential surface of photosensitive drums 1 is charged equably, and the uniform charging on the circumferential surface of photosensitive drums 1 is partly exposed to the open air the optical imagery that the optical system from electric photographic imaging apparatus projects, thereby form sub-image.Then, make image development by developer roll 3.
Photosensitive drums framework 5 comprises side stand 51 and wall portion and two waste powder hoppers 52 that sidewall forms by length direction.
Developing frame 6 is provided with the powder storehouse 61 of storage carbon dust, is provided with puddle support 62 in the powder storehouse 61.Rotatably mounted between the two opposite side walls of developing frame 6 have a developer roll 3.
As shown in Figure 3, photosensitive drums 1 comprises bulging cylinder 11 and the lip-deep photographic layer of whole circumference that is coated on the bulging cylinder 11.A drum gear 8 is fixedly mounted on the end of bulging cylinder 11, and its axis and the dead in line of rousing cylinder 11.Drum gear 8 comprises spiral gear part 81, shaft portion 82 and coupling part 83.Wherein, spiral gear part 81 is gear body parts of drum gear 8, and by rousing the axial of cylinder 11, spiral gear part 81 is positioned at the outside of bulging cylinder 11.Shaft portion 82 constitutes the core of drum gear 8, and it is overlapping with spiral gear part 81 in the radial direction drum gear 8.In other words, spiral gear part 81 is columniform, and shaft portion 82 extends in the hole of columniform spiral gear part 81, and the dead in line of its axis and columniform spiral gear part 81.Wherein, a gap 84 is arranged between the external peripheral surface of the inner circumferential surface of spiral gear part 81 and shaft portion 82.Shaft end at shaft portion 82 is provided with coupling part 83, and in the present embodiment, coupling part 83 is three projectioies that are triangularly arranged, and these three projectioies have the shape that is similar to petal respectively, wherein than small end along shaft portion 82 radially outward.Spiral gear part 81 comprises spiral gear 1 and spiral gear 2 812.When handle box is mounted in the master component on the electric photographic imaging apparatus, coupling part 83 can be connected with the drive part of master component, receive rotary driving force, drive photosensitive drums 1 rotation, and rotary driving force is passed to developer roll by spiral gear 1, by spiral gear 2 812 rotary driving force is passed to charging roller.
Corresponding to photosensitive drums 1 end of drum gear 8 is installed, side stand 51 is provided with a cylinder-shaped bearing 511 that axially extends to photosensitive drums 1 side along photosensitive drums 1.
As shown in Figure 4, when photosensitive drums 1 was installed on the side stand 51, the bearing 511 on the side stand 51 was inserted in the gap 84, and was bearing in spiral gear part 81.In other words, the bearing position of photosensitive drums 1 on side stand 51 is the inner circumferential surface of spiral gear part 81, but not on the shaft portion of the prior art 82, thereby the turning radius of supporting part bigger than prior art, so transmission is more steady.More specifically, in the utility model, the radius ratio prior art of bearing 511 big, but its wall thickness is less than the gap 84 between the external peripheral surface of the inner circumferential surface of spiral gear part 81 and shaft portion 82, therefore after photosensitive drums 1 is installed on the photosensitive drums framework, bearing 511 can be bearing in spiral gear part 81, and also has certain interval between the external peripheral surface of its inner circumferential surface and shaft portion 82.
Claims (4)
1, handle box comprises:
Photosensitive drums;
The photosensitive drums framework, it is provided with a side stand, described side stand be provided with one with described photosensitive drums coaxial and bearing that extend to described photosensitive drums direction;
Drum gear is located at an end of described photosensitive drums, comprises spiral gear part and the shaft portion that extends in the endoporus of spiral gear part, formation one cylindrical gap between the inner circumferential surface of the external peripheral surface of wherein said shaft portion and described spiral gear part;
It is characterized in that:
Described bearing is bearing in described spiral gear part.
2, according to the described handle box of claim 1, it is characterized in that:
Gap between the inner circumferential surface of the external peripheral surface of described shaft portion and described spiral gear part is greater than the wall thickness of described bearing.
3, according to the described handle box of claim 1, it is characterized in that:
After described photosensitive drums is installed on the described photosensitive drums framework, in the cylindrical gap of described bearing between described shaft portion and described spiral gear part, and gapped between the external peripheral surface of the inner circumferential surface of described bearing and described shaft portion
4, according to the described handle box of claim 3, it is characterized in that:
The shaft end of described shaft portion is provided with the coupling part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201791617U CN201134010Y (en) | 2007-12-29 | 2007-12-29 | Processing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201791617U CN201134010Y (en) | 2007-12-29 | 2007-12-29 | Processing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134010Y true CN201134010Y (en) | 2008-10-15 |
Family
ID=40062277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201791617U Expired - Lifetime CN201134010Y (en) | 2007-12-29 | 2007-12-29 | Processing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134010Y (en) |
-
2007
- 2007-12-29 CN CNU2007201791617U patent/CN201134010Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081015 |
|
| CX01 | Expiry of patent term |