CN203773227U - Developing device and image forming device - Google Patents
Developing device and image forming device Download PDFInfo
- Publication number
- CN203773227U CN203773227U CN201420006409.XU CN201420006409U CN203773227U CN 203773227 U CN203773227 U CN 203773227U CN 201420006409 U CN201420006409 U CN 201420006409U CN 203773227 U CN203773227 U CN 203773227U
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- Prior art keywords
- base portion
- hole
- elastic deformation
- limiting section
- developing apparatus
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- 230000005489 elastic deformation Effects 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 description 12
- 238000009434 installation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a developing device and an image forming device. The developing device comprises a housing, an end cover and an electric contact part, wherein at least one roller is accommodated inside the housing; the end cover is arranged on the end part of the housing, so that the housing can be sealed; a step through hole is formed in the end cover; a small hole end of the step through hole is close to the housing; the electric contact component comprises a base body and an elastic deformation part, wherein the base part can be accommodated in the step through hole; the elastic deformation part is connected to the base part; when the base part is arranged at the large hole end of the step through hole, the elastic deformation part can prop against the step surface of the step through hole to prevent the base part from moving towards the housing. The developing device is high in reliability and good in stability.
Description
Technical field
The utility model relates to a kind of developing apparatus, also relates to a kind of image processing system that comprises this developing apparatus.
Background technology
Conventionally,, under the acting in conjunction of laser instrument, developing apparatus, transfer device and fixing device that image forming apparatus comprises by it, on the recording medium of such as paper part etc., form developer image.Wherein, developing apparatus comprises the members such as photosensitive drums, charging roller, developer roll, powder storehouse, waste powder hopper.The image-forming principle of image forming apparatus is as described below, and first charging roller is to photosensitive drum charging, and then laser instrument, to photosensitive drums irradiating laser, forms the electrostatic latent image corresponding to required image on the surface of photosensitive drums.Then, powder feeding roller is delivered to the developer in powder storehouse on developer roll, developer roll is reprinted the developer on it to photosensitive drums again, make the electrostatic latent image of photosensitive drum surface become visual developer image, then photosensitive drums again by developer image to recording medium, and by fixing device, developer image is fixed on recording medium, thereby complete the whole process of recording medium imaging.
Known based on above-mentioned image-forming principle, charging roller, powder feeding rod and developer roll be all with electric charge, and to make the charging roller can be to photosensitive drum charging, powder feeding rod and developer roll can adsorb developer.Under normal circumstances, by being arranged on the metal shaft end in contact of the electrical contact member of developing apparatus end and charging roller, powder feeding roller, developer roll, the supply voltage in image forming apparatus main body is transferred to charging roller, powder feeding roller and developer roll.
But, the shortcoming that electrical contact member of the prior art exists is, in the time that electrical contact member is subject to larger axial external impacts, as excessive in the power contact applied pressure on body, electrical contact member is easily deviate from towards the opposite direction of installation direction, causes bias voltage to be stably supplied to charging roller.Therefore, be badly in need of that a kind of reliability is high, the developing apparatus of good stability.
Utility model content
For above-mentioned problem, the utility model proposes a kind of developing apparatus, this developing apparatus reliability is high, good stability.In addition, the utility model has also proposed to comprise the image forming apparatus of this developing apparatus.
According to first aspect of the present utility model, a kind of developing apparatus has been proposed, it comprises: housing, its inside accommodates at least one roller; End cap, it is arranged at the end of housing, and with can closure casing, end cap be provided with step through-hole, and the small bore end of step through-hole is near housing; Electrical contact member, it comprises base portion and elastic deformation portion, base portion can be contained in step through-hole, elastic deformation portion is connected in base portion, in the time that base portion is placed in the large nose end of step through-hole, elastic deformation portion can be resisted against the step surface of step through-hole, moves towards housing to limit base portion.
By developing apparatus of the present utility model, in the time that base portion is placed in the large nose end of step through-hole, elastic deformation portion opens at the large nose end of step through-hole based on self elasticity, the full-size of opening due to elastic deformation portion is greater than the small bore end aperture of step through-hole, so elastic deformation portion is resisted against on the step surface of step through-hole, thereby restriction base portion moves towards housing, the opposite direction that is electrical contact member installation direction moves, thus the stability when having improved reliability that electrical contact member installs and developing apparatus and using.
In one embodiment, electrical contact member also comprises connecting portion and limiting section, and limiting section is connected to base portion can limit the movement of base portion away from housing by connecting portion, and on limiting section, is provided with roller contact.In the time that electrical contact member is mounted to end cap, limiting section can limit base portion and move along electrical contact member installation direction, further improves the reliability that electrical contact member is installed.And roller contact is arranged on limiting section, make the simple in structure of electrical contact member.
In one embodiment, base portion is configured to a side and is provided with the sheet material of conductive contact, and elastic deformation portion opens towards the opposite side of base portion, and the elastic deformation portion full-size of opening is greater than the aperture of the small bore end of step through-hole.Adopt in this way, make elastic deformation portion not interfere the normal work of the conductive contact of base portion, and simple in structure, be easy to install.In a preferred embodiment, base portion is configured to rectangular sheet or circular sheet material, and elastic deformation portion comprises the first deformations and the second deformations that are oppositely arranged.Adopt this structure, make base portion be easy to processing and manufacturing, and the step surface extruding force that the first deformations being oppositely arranged and the second deformations make it be subject to step through-hole is more even, improve the quality of electrical contact member.
In one embodiment, the full-size that elastic deformation portion opens is greater than the aperture of the large nose end of step through-hole.Therefore, the extruding that step through-hole sidewall still bears in the time of the large nose end of step through-hole in elastic deformation portion, therefore base portion is not easy to move towards housing, thereby improves the reliability of electrical contact member conduction.
In one embodiment, limiting section comprises the first limiting section and the second limiting section that are oppositely arranged, and roller contact is arranged at the second limiting section, and in the time that base portion is placed in the large nose end of step through-hole, the first limiting section and the second limiting section are fastened in the inner side of end cap.It is more firm that the first limiting section that employing is oppositely arranged and the second limiting section can make electrical contact member install, and improves the reliability of developing apparatus product.
In one embodiment, the second limiting section comprises location division and contact site, location division is connected in base portion by connecting portion, and substantially parallel with base portion, location division is for being fastened in the inner side of described end cap, and contact site is connected in location division by junction surface, and contact site is in substantially parallel relationship to location division, roller contact is arranged at contact site, and location division and contact site are successively away from base portion, to form cascaded surface.Make thus Yu Gun contact, location division separately, avoid interfering the electrical connection of roller contact, improve the stability of electrical contact member conduction.
According to second aspect of the present utility model, a kind of image forming apparatus is also provided, it comprises according to developing apparatus mentioned above.
In this application, term " interior ", " outward " are defined as for the inside of housing, and the direction of pointing to enclosure interior is " interior ", is " outward " with interior contrary direction.The installation direction of electrical contact member is, from the inner side of end cap, electrical contact member is mounted to end cap.
Compared with prior art, the utility model has the advantage of, in the time that base portion is placed in the large nose end of step through-hole, elastic deformation portion opens at the large nose end of step through-hole based on self elasticity, and the full-size of opening due to elastic deformation portion is greater than the aperture, small bore end aperture of step through-hole.So elastic deformation portion is resisted against on the step surface of step through-hole, thereby restriction base portion moves towards housing.One side of base portion is provided with conductive contact, and elastic deformation portion opens towards the opposite side of base portion.Adopt in this way, make elastic deformation portion not interfere the normal work of the conductive contact of base portion.Elastic deformation portion comprises the first deformations and the second deformations that are oppositely arranged, adopts this structure to make elastic deformation portion be subject to the step surface extruding force of step through-hole more even, improves the quality of electrical contact member.Preferably, the full-size that elastic deformation portion opens is greater than the aperture of the large nose end of step through-hole.The extruding that step through-hole sidewall still bears in the time of the large nose end of step through-hole in elastic deformation portion thus, therefore base portion is not easy to move towards housing, thereby improves the reliability of electrical contact member conduction.
Brief description of the drawings
To be described in more detail the utility model based on embodiment and with reference to accompanying drawing hereinafter.Wherein:
Fig. 1 is according to the schematic diagram of the image forming apparatus of a preferred embodiment of the present utility model;
Fig. 2 is the schematic section of image forming apparatus shown in Fig. 1;
Fig. 3 is the side view of image forming apparatus described in Fig. 1;
Fig. 4 be image forming apparatus shown in Fig. 3 along the exploded view under the electrical contact member confined state in A-A cross section, wherein elastic deformation portion opens completely;
Fig. 5 is the enlarged drawing at the C place of image forming apparatus shown in Fig. 4;
Fig. 6 is the enlarged drawing of the electrical contact member of image forming apparatus shown in Fig. 4;
Fig. 7 is according to the stereographic map of the electrical contact member of the developing apparatus of a preferred embodiment of the present utility model;
Fig. 8 is according to the vertical view of the electrical contact member of the developing apparatus of another preferred embodiment of the present utility model;
Fig. 9 is that image forming apparatus shown in Fig. 3 is along the sectional view under the electrical contact member confined state of B-B;
Figure 10 is the assembling schematic diagram between electrical contact member shown in Fig. 7 and end cap.
In the drawings, identical member is indicated by identical Reference numeral.Accompanying drawing is not according to actual scale.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
The developing apparatus the utility model proposes comprises housing, end cap and electrical contact member.Electrical contact member is mounted on end cap, so that supply bias voltage from the power end of hull outside to the roller of enclosure interior.Developing apparatus of the present utility model and various piece will be described in detail belows.
As shown in Figure 1, developing apparatus 30 is removably mounted in the main body 2 of image processing system.Housing 35 inside accommodate at least one roller, and as preferably, shown in Fig. 2 and Fig. 3, the housing 35 of developing apparatus 30 comprises photosensitive drums 31, developer roll 32, powder feeding rod 33 and charging roller 34 etc.In addition, developing apparatus also comprises the electrical contact member 38 being arranged on end cap 36.Based on the image-forming principle of image forming apparatus, main body 2 needs apply charging bias voltage, developing bias voltage and supply powder bias voltage to charging roller 34, developer roll 32 and powder feeding rod 33 respectively.In the time that developing apparatus 30 is arranged in the main body 2 of image processing system, the power end being arranged in main body 2 is just connected with electrical contact member 38, and above-mentioned bias voltage is applied on charging roller 34, developer roll 32 and powder feeding rod 33 accordingly.
As shown in Fig. 4 and Fig. 9, end cap 36 is arranged at the end of housing 35, and with can closure casing 35, end cap 36 be provided with step through-hole 37, and the small bore end of step through-hole 37 is near housing 35.
As shown in Figure 3 and Figure 4, electrical contact member 38 is mounted on end cap 36.As shown in Figures 4 to 7, electrical contact member 38 comprises base portion 381 and elastic deformation portion 382, base portion 381 can be contained in step through-hole 37, elastic deformation portion 382 is connected in base portion 381, in the time that base portion 381 is placed in the large nose end of step through-hole 37, elastic deformation portion 382 is resisted against the step surface 371 of step through-hole 37, limits base portion 381 and moves (referring to Fig. 9) towards housing 35.When base portion 381 is placed in the large nose end of step through-hole 37, elastic deformation portion 382 opens at the large nose end of step through-hole 37 based on self elasticity, is illustrated in figure 4 completely and opens.The full-size L opening due to elastic deformation portion 382 is greater than the aperture L1 of the small bore end of step through-hole 37, so elastic deformation portion 382 is resisted against on the step surface 371 of step through-hole 37, thereby restriction base portion 381 moves towards the small bore end of step through-hole 37, the opposite direction that is electrical contact member 38 installation directions (D direction in Fig. 4) moves, thus the stability when having improved reliability that electrical contact member 38 installs and developing apparatus 30 and using.
As preferred embodiment, as shown in Fig. 7 and Figure 10, electrical contact member 38 also comprises connecting portion 384 and limiting section, and limiting section is connected to base portion 381 can limit the movement of base portion 381 away from housing 35 by connecting portion 384, and on limiting section, is provided with roller contact 388.In the time that electrical contact member 38 is mounted to end cap 36, limiting section can limit base portion 381 and move along electrical contact member 38 installation directions, further improves the reliability that electrical contact member 38 is installed.Adopt and also make in this way electrical contact member 38 simple in structure, need not set up other parts that form roller contact.
In one embodiment, base portion 381 is configured to a side and is provided with the sheet material of conductive contact 383, and elastic deformation portion 382 opens towards the opposite side of base portion 381, and the full-size L that opens of elastic deformation portion 382 is greater than the aperture L1 of the small bore end of step through-hole 37.Adopt in this way, make elastic deformation portion 382 not interfere the conductive contact 383 of base portion 381 normally to be worked, and simple in structure, be easy to install.In a preferred embodiment, base portion 381 is configured to rectangular sheet or circular sheet material, and thus, step through-hole 37 also adopts the rectangle or the circle that match, is easy to processing and manufacturing.In addition, elastic deformation portion 382 comprises the first deformations and the second deformations that are oppositely arranged.Adopt this structure, make elastic deformation portion 382 be subject to the extruding force of step surface 371 of step through-hole 37 more even, improve the quality of electrical contact member 38.
As shown in Fig. 7 and Fig. 9, as preferably, limiting section comprises the first limiting section 385 and the second limiting section 386 that are oppositely arranged, roller contact 388 is arranged at the second limiting section 386, in the time that base portion 381 is placed in the large nose end of step through-hole 37, the first limiting section 385 and the second limiting section 386 are fastened in the inner side of end cap 36.It is more firm that the first limiting section 385 that employing is oppositely arranged and the second limiting section 386 can make electrical contact member 38 install, and improves the reliability of developing apparatus product.
As shown in Fig. 7 and Fig. 9, preferably, the second limiting section 386 comprises location division 3860 and contact site 3862, location division 3860 is connected in base portion 381 by connecting portion 384, and substantially parallel with base portion 381, location division 3860 is for being fastened in electrical contact member 38 inner side of end cap 36, as shown in the figure, on location division 3860, be provided with fixed orifice 387, for being connected to end cap 36.Contact site 3862 is connected in location division 3860 by junction surface 3861, and contact site 3862 is in substantially parallel relationship to location division 3860, and roller contact 388 is arranged at contact site 3862, and location division 3860 and contact site 3862 are successively away from base portion 381, to form cascaded surface.As preferably, as shown in Figure 9, base portion 381, location division 3860 and contact site 3862 are in substantially parallel relationship to end cap 36.Be convenient to thus the installation of electrical contact member 38.As embodiment alternatively, as shown in Figure 8, base portion 3801 can be circular piece material, and elastic deformation portion 3802 can be symmetrically arranged arc, it at this, second limiting section 386 is only set, as long as can limit the movement of base portion 3801 away from housing 35.
As shown in Fig. 7, Fig. 9 and Figure 10, electrical contact member 38 is installed from the inner side of end cap 36, on end cap 36, be provided with the projection 39 for coordinating with fixed orifice 387, as shown in Figure 9, base portion 381 and elastic deformation portion 382 first enter from the small bore end of step through-hole 37, the full-size L opening due to elastic deformation portion 382 is greater than small bore end L1, so in small bore end, elastic deformation portion 382 is that the sidewall that bears step through-hole 37 pushes.
The length of connecting portion 384 should meet the inner side that is stuck in end cap 36 when the first limiting section 385, when fixed orifice 387 on the second limiting section 386 is enclosed within projection 39, base portion 381 and elastic deformation portion 382 can enter into the large nose end of step through-hole 37, and now elastic deformation portion 382 can all open and be resisted against on the step surface 371 of step through-hole 37.Further, the full-size that elastic deformation portion 382 opens is greater than the aperture of the large nose end of step through-hole 37, now, the extruding that step through-hole 37 sidewalls still bear in the time of the large nose end of step through-hole 37 in elastic deformation portion 382, therefore base portion 381 is not easy to move towards the small bore end of step through-hole 37, thereby improves the reliability that electrical contact member 38 conducts electricity.
In the time that the end cap 36 that is provided with electrical contact member 38 is arranged on to housing 35 end, roller contact 388 contacts with roller, can contact with charging roller 34 as shown in Figure 9.In addition, after contacting with roller, because contact site 3862 is become towards end cap 36 tilt (origin-location that the dotted line in Fig. 9 is contact site 3862) by the original direction that is in substantially parallel relationship to end cap 36, be that location division 3860 is formed as acute angle angle substantially with contact site 3862, now, contact site 3862 is subject to the shaft end pressure of roller and elastic deformation occurs, under the effect of elastic restoring force, contact site 3862 and roller close contact, therefore, the reliability contacting between contact site 3862 and roller is higher.
According to second aspect of the present utility model, as shown in Figure 1, also provide a kind of image forming apparatus, it comprises according to developing apparatus mentioned above 30.This image processing system good stability in use, and the installation procedure of electrical contact member 38 is simple, easy operating.
Although the utility model is described with reference to preferred embodiment, in the situation that not departing from scope of the present utility model, can carries out various improvement and can replace parts wherein with equivalent it.The utility model is not limited to disclosed specific embodiment in literary composition, but comprises all technical schemes in the scope that falls into claim.
Claims (8)
1. a developing apparatus, is characterized in that, comprising:
Housing, its inside accommodates at least one roller;
End cap, it is arranged at the end of described housing, and can seal described housing, described end cap is provided with step through-hole, and the small bore end of described step through-hole is near described housing;
Electrical contact member, it comprises base portion and elastic deformation portion, described base portion can be contained in described step through-hole, described elastic deformation portion is connected in described base portion, in the time that described base portion is placed in the large nose end of described step through-hole, described elastic deformation portion can be resisted against the step surface of described step through-hole, moves towards described housing to limit described base portion.
2. developing apparatus according to claim 1, it is characterized in that, described electrical contact member also comprises connecting portion and limiting section, described limiting section is connected to described base portion can limit the movement of described base portion away from described housing by described connecting portion, and on described limiting section, is provided with roller contact.
3. developing apparatus according to claim 1, it is characterized in that, described base portion is configured to a side and is provided with the sheet material of conductive contact, described elastic deformation portion opens towards the opposite side of described base portion, and the described elastic deformation portion full-size of opening is greater than the aperture of the described small bore end of described step through-hole.
4. developing apparatus according to claim 3, is characterized in that, described base portion is configured to rectangular sheet or circular sheet material, and described elastic deformation portion comprises the first deformations and the second deformations that are oppositely arranged.
5. developing apparatus according to claim 3, is characterized in that, the full-size that described elastic deformation portion opens is greater than the aperture of the described large nose end of described step through-hole.
6. developing apparatus according to claim 2, it is characterized in that, described limiting section comprises the first limiting section and the second limiting section that are oppositely arranged, described roller contact is arranged at described the second limiting section, in the time that described base portion is placed in the described large nose end of described step through-hole, described the first limiting section and described the second limiting section are fastened in the inner side of described end cap.
7. developing apparatus according to claim 6, it is characterized in that, described the second limiting section comprises location division and contact site, described location division is connected in described base portion by described connecting portion, and substantially parallel with described base portion, described location division is for being fastened in the inner side of described end cap, described contact site is connected in described location division by junction surface, and described contact site is in substantially parallel relationship to described location division, described roller contact is arranged at described contact site, described location division and described contact site are successively away from described base portion, to form cascaded surface.
8. an image forming apparatus, is characterized in that, comprises according to the developing apparatus described in any one in claim 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006409.XU CN203773227U (en) | 2014-01-04 | 2014-01-04 | Developing device and image forming device |
| PCT/CN2014/089292 WO2015101086A1 (en) | 2014-01-04 | 2014-10-23 | Processing cartridge and image formation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006409.XU CN203773227U (en) | 2014-01-04 | 2014-01-04 | Developing device and image forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773227U true CN203773227U (en) | 2014-08-13 |
Family
ID=51290396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420006409.XU Expired - Lifetime CN203773227U (en) | 2014-01-04 | 2014-01-04 | Developing device and image forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203773227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015101086A1 (en) * | 2014-01-04 | 2015-07-09 | 珠海赛纳打印科技股份有限公司 | Processing cartridge and image formation apparatus |
-
2014
- 2014-01-04 CN CN201420006409.XU patent/CN203773227U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015101086A1 (en) * | 2014-01-04 | 2015-07-09 | 珠海赛纳打印科技股份有限公司 | Processing cartridge and image formation apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190425 Address after: 519060 Central District A, Building 3, 01, 3883 Zhuhai Avenue, Zhuhai City, Guangdong Province Patentee after: ZHUHAI PANTUM ELECTRONICS Co.,Ltd. Address before: 519075 No. 63 Mingzhu North Road, Xiangzhou District, Zhuhai City, Guangdong Province Patentee before: ZHUHAI SEINE TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |