CN202362591U - Shaft sleeve and toner cartridge using same - Google Patents
Shaft sleeve and toner cartridge using same Download PDFInfo
- Publication number
- CN202362591U CN202362591U CN 201120490171 CN201120490171U CN202362591U CN 202362591 U CN202362591 U CN 202362591U CN 201120490171 CN201120490171 CN 201120490171 CN 201120490171 U CN201120490171 U CN 201120490171U CN 202362591 U CN202362591 U CN 202362591U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- shaft sleeve
- groove
- utility
- model
- 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 - Fee Related
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0818—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the structure of the donor member, e.g. surface properties
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
Abstract
The utility model provides a shaft sleeve and a toner cartridge using the same. The shaft sleeve comprises an outer circumferential surface, an inner circumferential surface and two opposite end surfaces. The end surfaces are provided with a groove, respectively, and the grooves are symmetrically arranged along the axial bisecting surface of the shaft sleeve. According to the shaft sleeve provided by the utility model, the structure of the grooves on the end surfaces can reduce shrinkage of the shaft sleeve during a forming process, and the symmetric groove arrangement can make the shaft sleeve product shrunk uniformly, thereby achieving uniform thickness of the shaft sleeve.
Description
Technical field
The utility model relates to a kind of axle sleeve, particularly is installed in the axle sleeve on the cartridge developer roll.
Background technology
Cartridge is a kind of expendable part that is removably installed in image processing system.This image processing system is a kind of equipment of using the photoelectronic imaging technology, like laser printer, LED printer, laser copier or the like.
Generally include parts such as developer roll, powder delivery cutter, photosensitive drums, charging roller and cleaning doctor in the cartridge, these parts cooperate jointly, to accomplish the development work of cartridge.Existing developer roll two ends are equipped with axle sleeve usually, and it mainly acts on the spacing that provides between developer roll and the photosensitive drums, and make spacing keep constant.Therefore, half bush wall thickness is very crucial to the control of spacing.If the degree of uniformity of half bush wall thickness exceeds allowed band, in print procedure, phenomenons such as " printing is turned white ", " powder delivery is too much " can occur, thereby have influence on printing effect and quality requirements.
Referring to Fig. 1 and Fig. 2; Axle sleeve 9 is abundant circular ring type shape, and its glue position is thicker, and product causes contraction inhomogeneous after moulding easily; Make the outer circumference surface of axle sleeve irregular; Even causing outer circumference surface to be deformed into oval side face, the thickness error value of the axle sleeve scope that can allow does not head and shoulders above reach request for utilization like this.Under existing common injection moulding manufacturing condition, the qualification rate of axle sleeve product is generally lower, only maintains about 40%.
Summary of the invention
The fundamental purpose of the utility model provides a kind of axle sleeve of new structure, with the uneven problem of effective reduction axle sleeve moulding post shrinkage.
Another purpose of the utility model provides a kind of cartridge with new structure axle sleeve, and above-mentioned axle sleeve can make between developer roll and the photosensitive drums in the cartridge has constant spacing, thereby promotes print quality.
For realizing above-mentioned fundamental purpose, the axle sleeve that the utility model provides comprises outer circumference surface, inner peripheral surface and two relative end faces, and said end face is provided with groove, and the axis bisector plane of the said axle sleeve in said groove edge is symmetrical set.
The axle sleeve of the utility model, the groove structure on its end face can reduce the contraction of axle sleeve in forming process, and the groove setting of symmetry can make the axle sleeve product shrink evenly, thereby make axle sleeve have homogeneous thickness.Under existing common injection moulding manufacturing condition, its product percent of pass can reach more than 90%.
Further, the junction of said outer circumference surface and two end faces has the chamfering of 45 degree.Such structure can further reduce the contraction of outer circumference surface, makes axle sleeve have homogeneous thickness.
For realizing another above-mentioned purpose; The cartridge that the utility model provides; Comprise developer roll and be installed in the axle sleeve of developer roll end; Said axle sleeve comprises outer circumference surface, inner peripheral surface and two relative end faces, and said end face is provided with groove, and the axis bisector plane of the said axle sleeve in said groove edge is symmetrical set.
The cartridge of the utility model, its developer roll axle sleeve has homogeneous thickness, makes to have constant spacing between developer roll and the photosensitive drums, thereby promotes print quality.
Further, the junction of said sleeve outer circle side face and two end faces has the chamfering of 45 degree.Such structure can further reduce the contraction of sleeve outer circle side face, makes axle sleeve have homogeneous thickness, has constant spacing between developer roll and the photosensitive drums thereby make, to promote print quality.
Description of drawings
Fig. 1 is the three-dimensional view of prior art axle sleeve.
Fig. 2 is the cut-open view of prior art axle sleeve.
Fig. 3 is the three-dimensional view of the utility model axle sleeve.
Fig. 4 is the cut-open view of the utility model axle sleeve.
Embodiment
Referring to Fig. 3 and Fig. 4, axle sleeve 1 becomes toroidal substantially, comprises outer circumference surface 11, inner peripheral surface 12 and relative first end face 13 and second end face 14.First end face 13 is provided with first groove, 23, the second end faces 14 and is provided with second groove 24.First groove 23 and second groove, 24 shapes are identical, and are symmetrical set along the axis bisector plane of said axle sleeve.With existing entity annular axle sleeve, groove 23,24 can reduce the contraction of axle sleeve in forming process relatively, and be symmetrical set the axle sleeve product is shunk evenly, thereby make axle sleeve have homogeneous thickness.In order further to reduce the contraction of sleeve outer circle side face, the junction of outer circumference surface 11 and first end face 13 and second end face 14 has the chamfering of 45 degree.
The axle sleeve of the utility model, the groove structure on its end face can reduce the contraction of axle sleeve in forming process, and the groove setting of symmetry can make the axle sleeve product shrink evenly, thereby make axle sleeve have homogeneous thickness.Under existing common injection moulding manufacturing condition, its product percent of pass can reach more than 90%.
The axle sleeve of the utility model can be applicable on the cartridge.Cartridge comprises developer roll, photosensitive drums (above all not shown) and is installed in the axle sleeve with aforementioned structure 1 of developer roll end.Because axle sleeve 1 has homogeneous thickness, so it can guarantee to have constant spacing between developer roll and the photosensitive drums, thereby promotes the print quality of cartridge.
Claims (4)
1. axle sleeve comprises outer circumference surface, inner peripheral surface and two relative end faces, and it is characterized in that: said end face is provided with groove, and the axis bisector plane of the said axle sleeve in said groove edge is symmetrical set.
2. axle sleeve according to claim 1 is characterized in that: the junction of said outer circumference surface and two end faces has the chamfering of 45 degree.
3. cartridge; Comprise developer roll and be installed in the axle sleeve of said developer roll end; Said axle sleeve comprises outer circumference surface, inner peripheral surface and two relative end faces, and it is characterized in that: said end face is provided with groove, and the axis bisector plane of the said axle sleeve in said groove edge is symmetrical set.
4. cartridge according to claim 3 is characterized in that: the junction of said sleeve outer circle side face and two end faces has the chamfering of 45 degree.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120490171 CN202362591U (en) | 2011-11-30 | 2011-11-30 | Shaft sleeve and toner cartridge using same |
| PCT/CN2012/084367 WO2013078943A1 (en) | 2011-11-30 | 2012-11-09 | Shaft sleeve and toner cartridge using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120490171 CN202362591U (en) | 2011-11-30 | 2011-11-30 | Shaft sleeve and toner cartridge using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362591U true CN202362591U (en) | 2012-08-01 |
Family
ID=46573763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120490171 Expired - Fee Related CN202362591U (en) | 2011-11-30 | 2011-11-30 | Shaft sleeve and toner cartridge using same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202362591U (en) |
| WO (1) | WO2013078943A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078943A1 (en) * | 2011-11-30 | 2013-06-06 | 珠海天威飞马打印耗材有限公司 | Shaft sleeve and toner cartridge using same |
| JP2020008761A (en) * | 2018-07-10 | 2020-01-16 | Ntn株式会社 | Tracking roller and injection molding method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000081785A (en) * | 1998-09-07 | 2000-03-21 | Canon Inc | Developing device |
| JP4735140B2 (en) * | 2005-09-02 | 2011-07-27 | 富士ゼロックス株式会社 | Image forming apparatus |
| CN201218231Y (en) * | 2008-05-22 | 2009-04-08 | 重庆凯鹏机械有限公司 | High speed water pump impeller |
| CN201359015Y (en) * | 2009-01-12 | 2009-12-09 | 无锡华达电机有限公司 | Retainer ring-free shaft sleeve |
| CN202362591U (en) * | 2011-11-30 | 2012-08-01 | 珠海天威飞马打印耗材有限公司 | Shaft sleeve and toner cartridge using same |
-
2011
- 2011-11-30 CN CN 201120490171 patent/CN202362591U/en not_active Expired - Fee Related
-
2012
- 2012-11-09 WO PCT/CN2012/084367 patent/WO2013078943A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078943A1 (en) * | 2011-11-30 | 2013-06-06 | 珠海天威飞马打印耗材有限公司 | Shaft sleeve and toner cartridge using same |
| JP2020008761A (en) * | 2018-07-10 | 2020-01-16 | Ntn株式会社 | Tracking roller and injection molding method thereof |
| JP7022662B2 (en) | 2018-07-10 | 2022-02-18 | Ntn株式会社 | Tracking roller and its injection molding method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013078943A1 (en) | 2013-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20201130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |