CN201107557Y - Carbon powder cartridge for laser copier - Google Patents
Carbon powder cartridge for laser copier Download PDFInfo
- Publication number
- CN201107557Y CN201107557Y CNU2007200564777U CN200720056477U CN201107557Y CN 201107557 Y CN201107557 Y CN 201107557Y CN U2007200564777 U CNU2007200564777 U CN U2007200564777U CN 200720056477 U CN200720056477 U CN 200720056477U CN 201107557 Y CN201107557 Y CN 201107557Y
- Authority
- CN
- China
- Prior art keywords
- carbon dust
- seal closure
- pipe support
- dust tube
- laser copier
- 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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- Dry Development In Electrophotography (AREA)
Abstract
The utility model relates to a carbon powder cylinder used for a laser copycat, which includes a hollow cylinder body with a port and an end cover that is dismountably fixed on the port of the hollow cylinder body. The side of the end cover back to an inner cavity of the cylinder body extends out of a tubular upright post that is communicated with the inner cavity of the cylinder body; the extending tail end of the tubular upright post is in a closed state; while the upright post on the direction parallel to the extending direction of the tubular upright post is provided with a powder outlet that is communicated with the port; the powder outlet is covered with a sealing hood that can slide to and fro along the extending direction of the tubular upright post. The powder outlet of the powder cylinder has the advantages of good sealing performance and stable structure.
Description
Technical field
The utility model relates to and is used for the carbon dust tube that electrophotographic image forming holds carbon dust, especially for the carbon dust tube that holds carbon dust in the laser copier.
Background technology
The carbon dust tube is to be used for the electrophotographic image forming kind equipment tank of laser copier supply developer for example.Usually, the carbon dust tube that is used for laser copier is installed in the developing apparatus of laser copier with dismountable form, by the meal outlet of carbon dust tube being docked on the powder inlet of laser copier developing apparatus, carbon dust in the carbon dust tube is fed in the developing chamber of developing apparatus, carbon dust is delivered to equably on the photosensitive drums that is arranged at developing apparatus by the developer roll that is arranged in developing chamber then, finish of the conversion of photosensitive drum surface electrostatic latent image, and final photographic fixing is on recording mediums such as paper to visual image.
Fig. 1 is a kind of known laser copier carbon dust elephant-legshaped vase oral area position cut-away illustration.This carbon dust tube A is made up of bottle 1, end cap 2 and elastic telescopic spare 3 with single direction Telescopic.Bottle 1 is that an axial end is closed, and a relative end is provided with the column shape container of an opening 101.End cap 2 is installed on the bottle opening 101 with screw thread butt joint form.The radially middle part of end cap 2 is provided with one and passes through bottle opening 101 with bottle 1 intracavity inter-connection, is used for providing to the developing chamber of laser copier developing apparatus the meal outlet 201 of carbon dust.Cruciform or in-line auxiliary stand 202 stride across on the end cap wall that meal outlet 201 is fixed in meal outlet 201 peripheries.Auxiliary stand 202 is along the one section column 203 that axially extends outwardly out of end cap 2, and expand into disk 204 at the extending end of column 203 along the direction perpendicular to end cap 2 axis.Elastic telescopic spare 3 be by several ring cavity walls at predetermined single direction, promptly end cap 2 axially on the extensible member that can extend in the direction or shrink that connects and composes one by one.It is surrounded on meal outlet 201, auxiliary stand 202 and column 203 in self inner chamber.Along end cap 2 axially, an end 301 of elastic telescopic spare 3 is fixed on the outer cylindrical wall 205 of end cap 2, the other end 302 forms the interference contact with the platform level shape circumferential edge 207 with disk 204 form keep with disk 204 or in conjunction with or the relation of separating.Like this, when 3 interference of elastic telescopic spare were incorporated on the circumferential edge of disk 204, meal outlet 201 was sealed jointly by elastic telescopic spare 3 and disk 204; When elastic telescopic spare 3 was compressed and disengages the circumferential edge of disk 204, meal outlet 201 was opened (referring to shown in Figure 2) with the path between the external environment condition 206, and the carbon dust of being stored in bottle 1 inner chamber can flow to the outside under action of gravity.
The both ends 301 and 302 of elastic telescopic spare 3 by being meshed with the outer cylindrical wall 205 of end cap 2 and the platform level shape circumferential edge 207 of disk 204, are fixed on elastic telescopic spare 3 on the end cap 2 respectively.The carbon dust tube is before installation, and meal outlet 201 is in closed state; In the time of in being installed to laser copier, the opening device that is provided with at the developing chamber powder inlet place of laser copier developing apparatus promotes the stressed ring 303 of elastic telescopic spare 3, elastic telescopic spare 3 is thrown off from the platform level shape circumferential edge 207 of end cap 2 with the end 302 that the platform level shape circumferential edge 207 of disk 204 is meshed, and inner chamber place direction compression, thereby open meal outlet 201 along end cap 2 central axis direction towards bottle 1.
For guaranteeing to have the good compression function, the wall thickness of wind-box shape elastic telescopic spare 3 is less than 1mm usually.Because the thickness of elastic telescopic spare 3 is too small, the both ends 301 of elasticity extensible member 3 and 302 come off from the outer cylindrical wall 205 of the end cap 2 of correspondence and the platform level shape circumferential edge 207 of disk 204 easily in transportation, thereby cause the leakage powder.For overcoming this shortcoming, can increase the thickness of elastic telescopic spare 3 both ends 301 and 302, but this can cause another problem again, because elastic telescopic spare 3 adopts the PE plastics to form through blowing usually, the degree of expansion of wayward PE plastics in the blow molding process, so that influence product size thickness, cause the product disqualification rate to increase, strengthen production cost.
The utility model content
The utility model purpose is to provide a kind of carbon dust tube that is used for to the laser copier supply toner, and this carbon dust tube is intended to improve the sealing property of its meal outlet, obtains stable meal outlet structure simultaneously.
According to the laser copier carbon dust tube of above-mentioned purpose design, comprise hollow cylinder and removably be fixed in end cap on the hollow cylinder port with port.End cap extends the pipe support that is communicated with cylinder lumen back to a side of cylinder lumen.The extending end of this pipe support is in closed state, and its stud wall that is parallel to aforementioned pipe support bearing of trend is provided with the meal outlet that is communicated with aforementioned port.Be coated with the seal closure that can reciprocatingly slide on this meal outlet along aforementioned pipe support bearing of trend.
Usually, aforementioned laser used in copy machines carbon dust tube, its seal closure has the axial cross section corresponding to the pipe support axial cross-sectional shape, and fits on the extending end of pipe support.
Preferably, aforementioned laser used in copy machines carbon dust tube is lined with the elastic porous material sheet that is fixed on the seal closure between its seal closure and the meal outlet.
Preferably, aforementioned laser used in copy machines carbon dust tube, the extending end of its pipe support has the bulge loop of radial dimension greater than the pipe support radial dimension.The inwall of seal closure keeps the interference contact with this bulge loop.
Better, aforementioned laser used in copy machines carbon dust tube, it drives seal closure is coil spring along the mechanism that the pipe support bearing of trend reciprocatingly slides.This coil spring is placed on the seal closure outer wall.The axial end of this coil spring is fixed on the aforementioned end cap, and the opposite end is fixed on the outer wall of seal closure.
Preferably, aforementioned laser used in copy machines carbon dust tube, its seal closure all are set to the open state of perforation mutually along the axial two ends of pipe support.
Optimally, aforementioned laser used in copy machines carbon dust tube, its seal closure are parallel to the axial sidewall of pipe support and are provided with along the axially extended chute of pipe support.The pipe support outer wall is provided with projection.Projection is plugged in the chute slidably.
Better, aforementioned laser used in copy machines carbon dust tube, its bulge loop is a flexible rubber ring.
Laser copier of the present utility model is compared with prior art with the carbon dust tube, employing by coil spring control can self-righting seal closure with the cooperation of the corresponding meal outlet of carbon dust tube, can realize that this carbon dust tube opens meal outlet under the effect of laser copier developing apparatus, close the designing requirement of meal outlet at the accumulating state.The utility model laser copier is with this fit system of carbon dust tube, overcome powder tube that background technology introduces and had the anxiety of meal outlet bad sealing at the accumulating state, and the manufacture craft of its corresponding component parts is comparatively ripe, helps reducing production costs.
The drawing explanation
The existing laser copier of Fig. 1 carbon dust tube cut-open view.
The existing laser copier of Fig. 2 carbon dust tube duty cross-sectional schematic.
Fig. 3 the utility model laser copier carbon dust tube skeleton view.
Fig. 4 the utility model laser copier carbon dust barrel structure decomposing schematic representation.
Fig. 5 the utility model laser copier carbon dust tube cut-open view.
Fig. 6 the utility model laser copier carbon dust tube duty cross-sectional schematic.
Embodiment
Referring to Fig. 3,4,5, show the utility model laser copier carbon dust tube and the structural relation under correlation behavior thereof.
The component parts of this carbon dust tube B comprises cylindrical shell 4 and end cap 5.Cylindrical shell 4 inner hollow, it is that an axial end is closed, a relative end is set to the cylindrical container of open port 401.On the external cylindrical surface of cylindrical shell 4, the straight trough 404 that is provided with helicla flute 403 and extends along the axial α that is parallel to cylindrical shell 4.Helicla flute 403 and straight trough 404 all help the location of carbon dust tube B in laser copier.End cap 5 can dock outside the open port 401 that form or bayonet socket butt joint form be installed in cylindrical shell 4 on the surface with screw thread.In cylindrical shell 4 inner chambers,, be provided with and lead powder sheet 402, so that near following interior dress carbon dust of rotation status that cylindrical shell 4 is in horizontal positioned guides to open port 401 near the position of open port 401.
In the side of end cap 5, extend the pipe shape column 501 that is communicated with cylindrical shell 4 inner chambers back to the inner chamber of cylindrical shell 4.Pipe column 501 outer walls are provided with projection 505.The extending end 502 of pipe column 501 is in closed state, and its stud wall that is parallel to pipe column bearing of trend α is provided with two meal outlets 503 that are symmetrical in pipe column 501 axis that are communicated with open port 401.On meal outlet 503, be coated with seal closure 8.Seal closure 8 is cylindrical sleeve, and its two ends along pipe column 501 bearing of trend α all are set to the opening of perforation mutually.Be parallel at seal closure 8 on the sidewall of the axial α of pipe support, be provided with the chute 801 that extends along the axial α of pipe column.Projection 505 on pipe column 501 outer walls is plugged in the chute 801 slidably.The shape of cross section of seal closure 8 is corresponding to the axial cross-sectional shape of pipe column 501, and its position is in the position at extending end 502 places of pipe column 501 usually.Between seal closure 8 and meal outlet 503, be lined with elastic porous material sheet 6.Material preparations such as elastic porous material sheet 6 general employing sponges, it is fixed on the inwall of seal closure 8 with bonding form, help when seal closure 8 is covered on the meal outlet 503, to form tight sealing, prevent that the carbon dust in cylindrical shell 4 inner chambers from leaking into external environment condition meal outlet 503.
At the extending end 502 of pipe column 501, be provided with the bulge loop 7 of radial dimension greater than pipe column 501 radial dimensions.Bulge loop 7 adopts the form of individual member, shows as an independently annulus, is the flexible rubber ring that utilizes elastic rubber material or silica gel material preparation, and it is placed on the annular groove that the position, extending end 502 place of pipe column 501 circumferential edge is provided with.Accordingly, seal closure 8 especially near the inwall of its axial end with keeping the interference contact condition between the bulge loop 7, so that between the inwall of seal closure 8 and bulge loop 7, form sealing.
On the outer wall of seal closure 8, be equipped with a coil spring 9.An axial end of coil spring 9 is fixed in the clamping form on the cylindrical wall of end cap 5, and the opposite end is maintained fixed contact with the expansion loop 802 that is provided with on the outer wall of form with seal closure 8.Expansion loop 802 is positioned at an axial end of seal closure 8, and this end towards the outside of cylindrical shell 4, is in identical substantially axial location with the extending end 502 of pipe support 501 under carbon dust tube B assembled state.
Shown in Fig. 3,5, under carbon dust tube B assembled state, seal closure 8 is being covered in the powder delivery 503 of pipe column 501 under the elastic force effect of coil spring 9 regularly, and meal outlet 503 is closed.Simultaneously, because the bulge loop 7 of pipe column 501 will be sealed in the meal outlet 503 of pipe column 501 carbon dust with the sealing contact that keeps the interference form between seal closure 8 inwalls fully.
Referring to Fig. 6, under carbon dust tube B packs the state of laser copier into, the opening device that is provided with at the developing chamber powder inlet place of laser copier developing apparatus promotes the expansion loop 802 of seal closure 8, make the axial α compression coil spring 9 of seal closure 8 along pipe column 501, and then make seal closure 8 towards end cap 5 place direction motions, make the meal outlet 503 of pipe column 501 be exposed out gradually, meal outlet 503 is set up with the path between the external environment condition 504, under the state that carbon dust tube B rotates owing to the driving of laser copier, the carbon dust of being stored in cylindrical shell 4 inner chambers is subjected to the prograding that the last helicla flute 403 of cylindrical shell 4 applies and flows to the outside.Under carbon dust tube B did not pack the state of laser copier into, the expansion loop 802 of seal closure 8 only was subjected to coil spring 9 restorable elastic force, and moved to the position that the meal outlet 503 with pipe column 501 keeps in touch, and meal outlet 503 is closed.
Claims (8)
1. laser copier carbon dust tube, comprise hollow cylinder and removably be fixed in end cap on the described port with port, it is characterized in that described end cap extends the pipe support that is communicated with described cylinder lumen back to a side of described cylinder lumen, the extending end of described pipe support is in closed state and its stud wall that is parallel to described bearing of trend is provided with the meal outlet that is communicated with described port, is coated with on the described meal outlet along described bearing of trend seal closure sliding back and forth.
2. laser copier carbon dust tube according to claim 1 is characterized in that described seal closure has corresponding to the axial cross section of described pipe support axial cross-sectional shape and fits over the described extending end of described pipe support.
3. laser copier carbon dust tube according to claim 1 and 2 is characterized in that being lined with between described seal closure and the described meal outlet elastic porous material sheet that is fixed on the described seal closure.
4. laser copier carbon dust tube according to claim 3 is characterized in that the described extending end of described pipe support has the bulge loop of radial dimension greater than described pipe support radial dimension, and the inwall of described seal closure keeps the interference contact with described bulge loop.
5. laser copier carbon dust tube according to claim 4, it is characterized in that driving described seal closure is coil spring along the mechanism that described pipe support bearing of trend reciprocatingly slides, described coil spring is placed on the described seal closure outer wall, and the axial end of described coil spring is fixed on the described end cap and the opposite end is fixed on the described seal closure outer wall.
6. laser copier carbon dust tube according to claim 5 is characterized in that described seal closure all is set to the open state that connects mutually along the axial two ends of described pipe support.
7. laser copier carbon dust tube according to claim 6, it is characterized in that described seal closure is parallel to the axial sidewall of described pipe support and is provided with along the axially extended chute of described pipe support, described pipe support outer wall is provided with projection, and described projection is plugged in the described chute slidably.
8. laser copier carbon dust tube according to claim 7 is characterized in that described bulge loop is a flexible rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200564777U CN201107557Y (en) | 2007-08-29 | 2007-08-29 | Carbon powder cartridge for laser copier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200564777U CN201107557Y (en) | 2007-08-29 | 2007-08-29 | Carbon powder cartridge for laser copier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107557Y true CN201107557Y (en) | 2008-08-27 |
Family
ID=39959368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200564777U Expired - Lifetime CN201107557Y (en) | 2007-08-29 | 2007-08-29 | Carbon powder cartridge for laser copier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201107557Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605273A (en) * | 2013-11-26 | 2014-02-26 | 北京新晨办公设备有限公司 | Improved toner barrel |
-
2007
- 2007-08-29 CN CNU2007200564777U patent/CN201107557Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605273A (en) * | 2013-11-26 | 2014-02-26 | 北京新晨办公设备有限公司 | Improved toner barrel |
| CN103605273B (en) * | 2013-11-26 | 2017-01-11 | 北京新晨办公设备有限公司 | Improved toner barrel |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080827 |