CN101887224A - Positioning structure for photosensitive drum of selenium drum - Google Patents
Positioning structure for photosensitive drum of selenium drum Download PDFInfo
- Publication number
- CN101887224A CN101887224A CN 201010205442 CN201010205442A CN101887224A CN 101887224 A CN101887224 A CN 101887224A CN 201010205442 CN201010205442 CN 201010205442 CN 201010205442 A CN201010205442 A CN 201010205442A CN 101887224 A CN101887224 A CN 101887224A
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- China
- Prior art keywords
- metal shaft
- photosensitive drums
- baffle plate
- drum
- side baffle
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Abstract
The invention provides a positioning structure for a photosensitive drum of a selenium drum. The positioning structure is a metal shaft, wherein the metal shaft passes through a pinion of the photosensitive drum, goes through the inside of the selenium drum and is extended out from a central hole of a bull gear of the photosensitive drum; the middle diameter of the metal shaft is larger, while the diameters of the two end positions are relatively smaller; and the two ends of the metal shaft have conical step structures, and are clamped and matched with corresponding conical stages on a left side baffle plate and a right side baffle plate respectively.
Description
Technical field
The present invention relates to a kind of both laser printer systems, be specially adapted to location the used photosensitive drum of selenium drum of printer.
Background technology
At present, the photosensitive drums locator meams of more known toner cartridges is: with the two ends that two short metal pivot pins insert photosensitive drums respectively, photosensitive drums is played a supporting role, pivot pin also plays the effect of conduction simultaneously.Two short metal pivot pins are processed together by the method for injection moulding with left side baffle plate, the right side baffle plate of toner cartridge respectively, synthesize one.
There is following shortcoming in its structure: 1) so have certain verticality and other foozle, increased difficulty and cost when making injection mold; 2) because the error that produces when adding the existence of the error of perpendicularity that produces man-hour and assembling, the center line that assembling is finished after, is difficult to guarantee two pivot pins point-blank, so the bigger coaxiality error of existence; 3) because left and right sides stub axle pin is designed to cantilever beam structure, the elasticity that moulding had so be easy to generate swing when work, influences the photosensitive drums job stability in addition; 4) owing to being to adopt two pivot pins, so when producing in enormous quantities, can influence production efficiency.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides and a kind ofly can improve the photosensitive drum of selenium drum job stability, manufacturing process is simple, a kind of laser selenium drum photosensitive drums location structure that production efficiency is high.
The present invention for the technical scheme that solves its technical matters and adopt is: by utilize a metal shaft through photosensitive drums inside replace original about two short metal pivot pins, promptly metal shaft passes through the center pit of photosensitive drums inside from the photosensitive drums gear wheel after left end passes the photosensitive drums pinion wheel.Passing the back metal shaft contacts with sheet metal on the photosensitive drums pinion wheel.To bear pressure bigger because of the metal shaft centre position, so the centre position diameter is bigger, plays the supporting role to photosensitive drums.End positions is stressed less relatively, thereby diameter can be less relatively, to alleviate the weight of total.
In order to increase the anchorage force at two ends, metal shaft also can be designed to middle and all bigger structure of end positions diameter, and whole metal shaft like this is two ends and the bigger notch cuttype structure of mid diameter.
The two ends of metal shaft are designed to frustum of a cone stage structure, are equipped with the frustum of a cone screens that matches in the corresponding positions of left side baffle plate and right side baffle plate, the two ends of metal shaft respectively with left side baffle plate and right side baffle plate on corresponding frustum of a cone clamping matching.The left end of metal shaft exposes the left side baffle plate, plays the effect of conduction.
The invention has the beneficial effects as follows that the coaxiality error that has produced when having eliminated two pivot pin cooperatings of original employing has been simplified manufacturing process, has reduced processing cost, when producing in enormous quantities, can also effectively enhance productivity.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is one-piece construction figure of the present invention.
Fig. 2 is the present invention left side structural drawing.
Fig. 3 is the structural drawing of left side baffle plate.
Fig. 4 is the structural drawing of metal shaft.
1. shells among the figure, 2. left side baffle plate, 3. metal shaft, 4. photosensitive drums, 4a. photosensitive drums pinion wheel, 4b. sheet metal, 4c. photosensitive drums gear wheel, 5. right side baffle plate.
Embodiment
In Fig. 1, photosensitive drums (4) is positioned at shell (1), and the photosensitive drums pinion wheel (4a) that metal shaft (3) is passed photosensitive drums (4) left side contacts with sheet metal (4b), passes the endoporus of photosensitive drums gear wheel (4c) at last.Left side baffle plate (2) is positioned at photosensitive drums pinion wheel (4a) end, and right side baffle plate (5) is positioned at photosensitive drums gear wheel (4c) end.Wherein metal shaft (3) runs through photosensitive drums (4), and corresponding frustum of a cone clamping matching is gone up with left side baffle plate (2) and right side baffle plate (5) respectively in the two ends of metal shaft (3).Left side baffle plate (2) and right side baffle plate (5) pass through screw retention together with shell (1).Left side baffle plate (2), right side baffle plate (5) and metal shaft (3) are formed simple beam structure jointly, play the supporting role to photosensitive drums (4).
As shown in Figure 2, the end of metal shaft (3) is designed to frustum of a cone stage structure, match with frustum of a cone screens on the left side baffle plate (2), between cooperation adopt the transition fit mode, metal shaft (3) and photosensitive drums (4) cooperate the employing gap fiting mode.The end face of metal shaft (3) exposes the surface of left side baffle plate (2), plays the effect of conduction.
As shown in Figure 4, in the middle of metal shaft (3) is designed to according to its distribution situation of bearing moment of flexure and all bigger notch cuttype structure of end positions diameter, can alleviate whole weight guaranteeing photosensitive drums (4) is played on the basis of safety supports.
During running, electric current passes through sheet metal (4b) again to photosensitive drums (4) charging through the two ends of metal shaft (3), and at this moment metal shaft (3) plays the effect of conduction.Printer driver photosensitive drums gear wheel (4c) and photosensitive drums pinion wheel (4a) rotatablely move photosensitive drums (4) generation simultaneously, metal shaft (3) produces relative rotation with photosensitive drums (4), metal shaft (3) relatively rotates with left side baffle plate (2) and right side baffle plate (5) nothing, and at this moment metal shaft (3) plays the effect of supporting photosensitive drums (4) rotation.
Claims (4)
1. positioning structure for photosensitive drum of selenium drum, this location structure is a metal shaft, this metal shaft passes through the center pit of toner cartridge inside from the photosensitive drums gear wheel after passing the photosensitive drums pinion wheel, metal shaft contacts with sheet metal on the photosensitive drums pinion wheel, it is characterized in that: this metal shaft is that mid diameter is bigger, and the end positions diameter is less relatively.
2. positioning structure for photosensitive drum of selenium drum, this location structure is a metal shaft, this metal shaft passes through the center pit of toner cartridge inside from the photosensitive drums gear wheel after passing the photosensitive drums pinion wheel, metal shaft contacts with sheet metal on the photosensitive drums pinion wheel, it is characterized in that: the centre of metal shaft and end positions diameter are bigger, and whole metal shaft is two ends and the bigger notch cuttype structure of mid diameter.
3. positioning structure for photosensitive drum of selenium drum according to claim 1 is characterized in that: the metal shaft two ends are designed to frustum of a cone stage structure, its two ends respectively with left side baffle plate and right side baffle plate on corresponding frustum of a cone clamping matching.
4. positioning structure for photosensitive drum of selenium drum according to claim 1 is characterized in that: adopt transient mode to match between the frustum of a cone screens on metal shaft and the left side baffle plate, adopt the gap mode to cooperate between metal shaft and the photosensitive drums.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010205442 CN101887224A (en) | 2010-06-22 | 2010-06-22 | Positioning structure for photosensitive drum of selenium drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010205442 CN101887224A (en) | 2010-06-22 | 2010-06-22 | Positioning structure for photosensitive drum of selenium drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101887224A true CN101887224A (en) | 2010-11-17 |
Family
ID=43073187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010205442 Pending CN101887224A (en) | 2010-06-22 | 2010-06-22 | Positioning structure for photosensitive drum of selenium drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101887224A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06105867A (en) * | 1992-09-04 | 1994-04-19 | Toyo Eizai Kk | Absorptive body |
| CN1731293A (en) * | 2004-08-06 | 2006-02-08 | 兄弟工业株式会社 | Photosensitive member cartridge, developer cartridge and process cartridge |
| EP1686432A2 (en) * | 2005-01-31 | 2006-08-02 | Brother Kogyo Kabushiki Kaisha | Developer cartridge and image forming apparatus |
| CN1837973A (en) * | 2005-03-08 | 2006-09-27 | 株式会社普利司通 | Conductive roller and image forming device using same |
| CN201707543U (en) * | 2010-06-22 | 2011-01-12 | 富美科技有限公司 | Toner cartridge photosensitive drum positioning structure |
-
2010
- 2010-06-22 CN CN 201010205442 patent/CN101887224A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06105867A (en) * | 1992-09-04 | 1994-04-19 | Toyo Eizai Kk | Absorptive body |
| CN1731293A (en) * | 2004-08-06 | 2006-02-08 | 兄弟工业株式会社 | Photosensitive member cartridge, developer cartridge and process cartridge |
| EP1686432A2 (en) * | 2005-01-31 | 2006-08-02 | Brother Kogyo Kabushiki Kaisha | Developer cartridge and image forming apparatus |
| CN1837973A (en) * | 2005-03-08 | 2006-09-27 | 株式会社普利司通 | Conductive roller and image forming device using same |
| CN201707543U (en) * | 2010-06-22 | 2011-01-12 | 富美科技有限公司 | Toner cartridge photosensitive drum positioning structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101117 |