CN102476751A - Automatic paper-feeding device - Google Patents
Automatic paper-feeding device Download PDFInfo
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- CN102476751A CN102476751A CN2010105595852A CN201010559585A CN102476751A CN 102476751 A CN102476751 A CN 102476751A CN 2010105595852 A CN2010105595852 A CN 2010105595852A CN 201010559585 A CN201010559585 A CN 201010559585A CN 102476751 A CN102476751 A CN 102476751A
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- pressure roller
- document feeder
- rotating shaft
- automatic document
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Abstract
The invention provides an automatic paper-feeding device which comprises an upper cover, an outer shell, a first pressure idler wheel set and a separating device, wherein the first pressure idler wheel set is arranged in an accommodating space at the tail end of the outer shell and comprises a first rotating shaft and a first pressure idler wheel; the separating device is sleeved on the first rotating shaft and is exposed out of the accommodating space; and when the upper cover is opened, the upper cover is in contact with the separating device so as to drive the separating device to cause the first rotating shaft to shift. The automatic paper-feeding device provided by the invention is used for saving the space for mounting a paperboard removing device.
Description
Technical field
The present invention relates to a kind of automatic document feeder, relate in particular to a kind of automatic document feeder that paperboard is got rid of mechanism that has.
Background technology
Multifunctional paper feeding machine and scanner all are important business machines indispensable in the office, for many continuous scannings improving scanning speed, and the multifunctional paper feeding machine of configuration automatic document feeder and the appearance of scanner are arranged.
Figure 1A is a kind of existing automatic document feeder, is disclosed by TaiWan, China TWI255253 patent.The automatic document feeder 1 of Fig. 1 comprises shell 11, loam cake 12, the first relaying roller 13, the second relaying roller 14, lever 15, leads paper housing 16 and get paper matrix group 17; Wherein first end of lever 15 is connected in the first relaying roller 13; The second end closing is in the protuberance 121 of loam cake 12, and the first relaying roller, 13 rears are fixed in through anchor fitting 151 in the central authorities of lever 15.
When carrying out scanning operation, get paper matrix group 17 and present paper to be scanned, then mutually first relaying roller 13 of pressing and the second relaying roller, 14 clamping paper and paper sent into automatic document feeder inside through leading paper housing 16.
When the paperboard situation took place, the user need open loam cake 12 paper is extracted out, with the line scanning operation of going forward side by side of paper feeding again.Shown in Figure 1B; Figure 1B is the enlarged drawing at Figure 1A dotted line place, at first loam cake 12 is rotated towards the a1 direction, and the protuberance 121 of loam cake 12 promotes second end of levers 15 at this moment; Making lever 15 is that fulcrum rotates towards the a2 direction with its central authorities; Produce skew and drive the first relaying roller 13 towards the a3 direction, and the first relaying roller 13 is separated with the second relaying roller 14, the user can extract paper smoothly out.
Comprehensively the above can be known, this automatic document feeder 1 can be separated the first relaying roller 13 when opening loam cake 12 by lever 15 with the second relaying roller 14, in order to getting rid of paperboard.
Problem below existing automatic document feeder exists.As previously mentioned, lever 15 is arranged at the first relaying roller, 13 rears and closing in the protuberance 121 of loam cake 12 through an anchor fitting 151.Yet; Aforementioned existing automatic document feeder is in order to provide the effect of getting rid of paperboard; Must be in automatic document feeder extra formation the space of lever 15 usefulness is set, be to produce additional space at the first relaying roller, 13 rears in the example of Fig. 1, so will increase automatic document feeder single-piece volume.
Therefore the automatic document feeder that needs a kind of improvement is to overcome the problem of existing automatic document feeder.
Summary of the invention
The object of the present invention is to provide a kind of automatic document feeder of install getting rid of the space that the paperboard device uses of saving.
The object of the present invention is to provide a kind of automatic document feeder, be used for paper feeding, comprising:
One shell comprises the end that an accommodation space is positioned at this shell, and wherein this accommodation space has one first perforation and one second perforation;
One loam cake is hubbed at this end of this shell, and this loam cake is opened or a closed condition to form one with respect to this shell rotation;
One first pressure roller group; Be arranged at this accommodation space, comprise one first rotating shaft and one first pressure roller, wherein this first rotating shaft is positioned at this accommodation space inside; This first pressure roller is hubbed at this first rotating shaft and part is stretched out this first perforation, to be revealed in outside this accommodation space; And
One disengagement gear, be arranged in this first rotating shaft and stretch out this second the perforation and be revealed in outside this accommodation space; Wherein when this loam cake is unlocked, this loam cake contacts with this disengagement gear and drives this disengagement gear and make this first rotating shaft produce skew.
In a preferred embodiment; Comprise that also leading paper housing and gets the paper matrix group; Wherein this is led the paper housing and is arranged on this shell; Forming a paper travel path, to get into this automatic document feeder with the guiding paper inner, and this is got the paper matrix group and is arranged at this and leads paper housing top, leads the paper housing in order to paper feeding through this.
In a preferred embodiment; Comprise that also one second pressure roller group is positioned at this and leads the paper housing; Wherein this second pressure roller group comprises one second rotating shaft and one second pressure roller; And this second pressure roller and the mutual pressing of this first pressure roller are with clamping paper and this automatic document feeder of paper feed-in is inner.
In a preferred embodiment, comprise that also an anchor fitting is arranged at this accommodation space, in order to fix this first pressure roller group in this accommodation space.
In a preferred embodiment; Wherein one first end of this disengagement gear is arranged at this anchor fitting; One second end of this disengagement gear stretches out this second perforation of this accommodation space, and the central authorities of this disengagement gear have a spacing hole and pass this first rotating shaft, when this loam cake is unlocked; It is the fulcrum rotation with this first end that this second end that this loam cake compresses this disengagement gear makes this disengagement gear; Produce this skew and drive this first rotating shaft, and this first pressure roller is separated with this second pressure roller, in order to getting rid of paperboard.
In a preferred embodiment, wherein this loam cake also comprises a plurality of paper guiding sheets, and when this loam cake was unlocked, wherein this paper guiding sheet compressed this second end of this disengagement gear, and makes this disengagement gear separate this first pressure roller and this second pressure roller.
In another preferred embodiment, wherein one first end of this disengagement gear has a spacing hole and passes this first rotating shaft, and one second end of this disengagement gear stretches out this second perforation of this accommodation space; And these disengagement gear central authorities have a depressed part, and this second the perforation have a protuberance, when this loam cake is unlocked; This loam cake promotes this second end of this disengagement gear; This protuberance of this depressed part of this disengagement gear and this second perforation is inconsistent, and making this disengagement gear is the fulcrum rotation with its center, produces this skew and drive this first rotating shaft; And this first pressure roller is separated with this second pressure roller, in order to getting rid of paperboard.
In another preferred embodiment, wherein this loam cake also has a projection, and when this loam cake was unlocked, this projection of this loam cake promoted this second end of this disengagement gear, and made this disengagement gear separate this first pressure roller and this second pressure roller.
In a preferred embodiment, wherein the outside face of this accommodation space also comprises a plurality of paper guiding sheets.
In a preferred embodiment, also comprise an elastic element and be arranged in this first rotating shaft, so that this first rotating shaft, one restoring force to be provided.
In a preferred embodiment, wherein this elastic element is a torsion spring.
Description of drawings
Figure 1A is the section-drawing of existing automatic document feeder.
Figure 1B is the partial enlarged drawing of existing automatic document feeder.
Fig. 2 is the decomposing schematic representation of automatic document feeder of the present invention in first preferred embodiment.
Fig. 3 A is the partial exploded view of automatic document feeder of the present invention in first preferred embodiment.
Fig. 3 B is the local appearance scheme drawing of automatic document feeder of the present invention in first preferred embodiment.
Fig. 4 A and Fig. 4 B are the section-drawing of automatic document feeder of the present invention in first preferred embodiment.
Fig. 5 is the decomposing schematic representation of automatic document feeder of the present invention in second preferred embodiment.
Fig. 6 A is the partial exploded view of automatic document feeder of the present invention in second preferred embodiment.
Fig. 6 B is the local appearance scheme drawing of automatic document feeder of the present invention in second preferred embodiment.
Fig. 7 A and Fig. 7 B are the section-drawing of automatic document feeder of the present invention in second preferred embodiment.
Wherein, description of reference numerals is following:
21 loam cakes
272 anchor fittings
211 paper guiding sheets
The 272a elastic element
24 first pressure roller groups
241 first rotating shafts
242 first pressure rollers
26 disengagement gears
261 spacing holes
262 first ends
263 second ends
27 shells
271 accommodation spaces
271a first perforation
271b second perforation
The 271c paper guiding sheet
The specific embodiment
According to a specific embodiment of the present invention a kind of automatic document feeder is provided, can be applicable to multifunctional paper feeding machine or automatic paper feeding scanner.
Fig. 2 shows the decomposing schematic representation of the automatic document feeder of one embodiment of the present invention.Automatic document feeder 2 of the present invention includes loam cake 21, get paper matrix group 22, lead paper housing 23, the first pressure roller group 24, the second pressure roller group 25, two disengagement gears 26 and shell 27.Loam cake 21 comprises a plurality of paper guiding sheets 211.The end of shell 27 is provided with an accommodation space 271.In the present embodiment, the first pressure roller group 24 comprises first rotating shaft 241 and three first pressure rollers 242.25 of the second pressure roller groups comprise second rotating shaft 251 and three second pressure rollers 252.Anchor fitting 272, the first pressure roller groups 24 and two disengagement gears 26 are set in the accommodation space 271 of shell 27 ends.
Please be simultaneously with reference to Fig. 3 A and Fig. 3 B, loam cake 21 is hubbed at accommodation space 271 tops of shell 27 ends.First rotating shaft 241 is arranged on the anchor fitting 272, and three first 242 of pressure rollers are hubbed at first rotating shaft 241.The central authorities of two disengagement gears 26 have spacing hole 261 separately and pass first rotating shaft 241, and first end 262 of two disengagement gears 26 is fixed in anchor fitting 272.272 of anchor fittings are arranged in the accommodation space 271.In the present embodiment, accommodation space 271 has three first perforation 271a, two second perforation 271b and a plurality of paper guiding sheet 271c and is positioned at its surface.Three first pressure roller 242 parts are stretched out three first perforation 271a to be revealed in outside the accommodation space 271; Second end 263 of two disengagement gears 26 then stretches out two second perforation 271 being revealed in outside the accommodation space 271, and lays respectively at a wherein paper guiding sheet 211 belows of loam cake 21.In Fig. 3 embodiment, also comprise two elastic element 272a and be arranged on the anchor fitting 272, to provide first rotating shaft 241 restoring forces, wherein two elastic element 272a are torsion spring in the present embodiment.
The running of following instruction diagram 3A embodiment.Please refer to Fig. 4 A and Fig. 4 B simultaneously.Fig. 4 A shows that automatic document feeder 2 is in the section-drawing when getting the paper state.Get the paper operation when carrying out; Loam cake 21 is not unlocked; Get paper matrix group 22 and present paper to be scanned through leading paper housing 23; Three first pressure rollers 242 and three second pressure roller 252 clamping paper through mutual pressing then, and paper sent into automatic document feeder 2 inside to carry out scanning operation, in the paper traveling process; A plurality of paper guiding sheet 271c on a plurality of paper guiding sheets 211 of loam cake 21 and accommodation space 271 surfaces can form a level and smooth paper travel path, avoid paper to come to harm.This moment, second end 263 of two disengagement gears 26 was not compressed by loam cake 21; And that two disengagement gears 26 are revealed in accommodation space 271 is outer and lay respectively in the middle of the wherein two paper guiding sheet 271c on accommodation space 271 surfaces, forms the part of paper travel path and does not influence the guiding function of paper guiding sheet 271c.If because factors such as paper sheet askew, unfairnesses, paper is stuck between three first pressure rollers 242 and three second pressure rollers 252 in the scanning process, and can't continue paper feed the time, the user promptly needs paperboard is got rid of, with the continuation scanning operation.
Fig. 4 B shows the section-drawing when automatic document feeder 2 is in paperboard eliminating state, and at first, the user need open loam cake 21 to take out paper.When loam cake 21 when the b1 direction is unlocked; The paper guiding sheet 211 of loam cake 21 compresses second end 263 of two disengagement gears 26; Making two disengagement gears 26 is that fulcrum rotates to the b2 direction with its first end 262, in the spacing hole 261 of two disengagement gears 26, slides into a location and drive first rotating shaft 241, makes first rotating shaft 241 produce skew; Move towards the b3 direction and drive three first pressure rollers; And then three first pressure rollers 242 are separated with three second pressure rollers 252, can take out paper this moment, and paper is not damaged.In addition, the controlled amount system first rotating shaft 241 out-of-position degree of the spacing hole 261 through adjusting two disengagement gears 26.When closing loam cake 21 with after replying scanning operation, two elastic element 272a provide a restoring force to make first rotating shaft 241 return position originally to first rotating shaft 241, and drive two disengagement gears 26, make two disengagement gears, 26 return to primitive age states.
In addition, the present invention also provides one second preferred embodiment, sees also Fig. 5, and it is the decomposing schematic representation of automatic document feeder second preferred embodiment of the present invention.Automatic document feeder 3 includes loam cake 31, get paper matrix group 32, lead paper housing 33, the first pressure roller group 34, the second pressure roller group 35, two disengagement gears 36 and shell 37.Loam cake 31 comprises two projections 311.The end of shell 37 is provided with an accommodation space 371.In the present embodiment, the first pressure roller group 34 comprises first rotating shaft 341 and three first pressure rollers 342.35 of the second pressure roller groups comprise second rotating shaft 351 and three second pressure rollers 352.Anchor fitting 372, the first pressure roller groups 34 and two disengagement gears 36 are set in the accommodation space 371 of shell 37 ends.Second preferred embodiment and the first preferred embodiment difference are the structure and the position of two disengagement gears 36.
Please refer to Fig. 6 A and Fig. 6 B simultaneously, loam cake 31 is hubbed at accommodation space 371 tops of shell 37 ends.First rotating shaft 341 is arranged on the anchor fitting 372, and three first 342 of pressure rollers are hubbed in first rotating shaft 341, and first end of two disengagement gears 36 has a spacing hole 361 respectively and passes first rotating shaft 341, and its central authorities all have depressed part 362.Anchor fitting 372 is arranged in the accommodation space 371.In the present embodiment, accommodation space 371 has three first perforation 371a, two second perforation 371b and a plurality of paper guiding sheet 371c and is positioned at its surface, and wherein two second perforation 371b have protuberance 371ba separately.Three first pressure roller 342 parts are stretched out three first perforation 371a to be revealed in outside the accommodation space 371; Second end 363 of two disengagement gears 36 then stretches out two second perforation 371 being revealed in outside the accommodation space 371, and distinctly is positioned at two projections, 311 belows of loam cake 31.In addition, the depressed part 362 of two disengagement gears 36 central authorities separately closing and be positioned at protuberance 371ba below in the protuberance 371ba of two second perforation 371b.
The running of following instruction diagram 6A embodiment.Please be simultaneously with reference to Fig. 7 A and Fig. 7 B; When loam cake 31 when the c1 direction is unlocked; Two projections 311 of loam cake 31 promote second end 363 of two disengagement gears 36; This moments two disengagement gears 36 central authorities depressed parts 362 upwards conflict respectively 2 second perforation 371b protuberance 371ba and do not produce displacement, make two disengagement gears 36 with its central depressed part 362 be fulcrum to the rotation of c2 direction, and two disengagement gears 36 are when rotating; Drive first rotating shaft 341 and in spacing hole 361, slide into a location; Make first rotating shaft 341 produce skew, move towards the c3 direction and drive three first pressure rollers 342, and then three first pressure rollers 342 are separated with three second pressure rollers 352.The structure of other unspecified elements and operation situation can then repeat no more in this with reference to the associated description in first preferred embodiment in the automatic document feeder 3.
Can know that by above two preferred embodiments the present invention makes automatic document feeder when the paperboard situation takes place through disengagement gear, can take out paper easily and do not injure paper or destroy automatic document feeder.In addition, the disengagement gear and first pressure roller are installed in the same space, do not get rid of the disengagement gear that paperboard is used, more can save the space is set, to meet the compact demand of modern automatic document feeder and need not provide additional space to install.
Above-described embodiment is merely explanation technological thought of the present invention and characteristics; Its purpose is to make those of ordinary skills can understand content of the present invention and implements according to this; But can not limit claim of the present invention with this; Equal variation or the modification promptly done according to disclosed spirit generally must be contained within the scope of the invention.
Claims (11)
1. an automatic document feeder is used for paper feeding, comprising:
One shell comprises the end that an accommodation space is positioned at this shell, and wherein this accommodation space has one first perforation and one second perforation;
One loam cake is hubbed at this end of this shell, and this loam cake is opened or a closed condition to form one with respect to this shell rotation;
One first pressure roller group; Be arranged at this accommodation space, comprise one first rotating shaft and one first pressure roller, wherein this first rotating shaft is positioned at this accommodation space inside; This first pressure roller is hubbed at this first rotating shaft and part is stretched out this first perforation, to be revealed in outside this accommodation space; And
One disengagement gear, be arranged in this first rotating shaft and stretch out this second the perforation and be revealed in outside this accommodation space; Wherein when this loam cake is unlocked, this loam cake contacts with this disengagement gear and drives this disengagement gear and make this first rotating shaft produce skew.
2. automatic document feeder according to claim 1; It is characterized in that; Comprise that also leading paper housing and gets the paper matrix group, wherein this is led the paper housing and is arranged on this shell, and forming a paper travel path, to get into this automatic document feeder with the guiding paper inner; And this is got the paper matrix group and is arranged at this and leads paper housing top, leads the paper housing in order to paper feeding through this.
3. automatic document feeder according to claim 2; It is characterized in that; Comprise that also one second pressure roller group is positioned at this and leads the paper housing; Wherein this second pressure roller group comprises one second rotating shaft and one second pressure roller, and this second pressure roller and the mutual pressing of this first pressure roller, sends into this automatic document feeder inside with the clamping paper and with paper.
4. automatic document feeder according to claim 1 is characterized in that, comprises that also an anchor fitting is arranged at this accommodation space, in order to fix this first pressure roller group in this accommodation space.
5. automatic document feeder according to claim 4; It is characterized in that one first end of this disengagement gear is arranged at this anchor fitting, one second end of this disengagement gear stretches out this second perforation of this accommodation space; And the central authorities of this disengagement gear have a spacing hole and pass this first rotating shaft; When this loam cake was unlocked, it was the fulcrum rotation with this first end that this second end that this loam cake compresses this disengagement gear makes this disengagement gear, produces this skew and drive this first rotating shaft; And this first pressure roller is separated with this second pressure roller, in order to getting rid of paperboard.
6. automatic document feeder according to claim 5; It is characterized in that this loam cake also comprises a plurality of paper guiding sheets, when this loam cake is unlocked; Wherein this paper guiding sheet compresses this second end of this disengagement gear, and makes this disengagement gear separate this first pressure roller and this second pressure roller.
7. automatic document feeder according to claim 1 is characterized in that, wherein one first end of this disengagement gear has a spacing hole and passes this first rotating shaft; One second end of this disengagement gear stretches out this second perforation of this accommodation space; And these disengagement gear central authorities have a depressed part, and this second the perforation have a protuberance, when this loam cake is unlocked; This loam cake promotes this second end of this disengagement gear; This protuberance of this depressed part of this disengagement gear and this second perforation is inconsistent, and making this disengagement gear is the fulcrum rotation with its center, produces this skew and drive this first rotating shaft; And this first pressure roller is separated with this second pressure roller, in order to getting rid of paperboard.
8. automatic document feeder according to claim 7; It is characterized in that wherein this loam cake also has a projection, when this loam cake is unlocked; This projection of this loam cake promotes this second end of this disengagement gear, and makes this disengagement gear separate this first pressure roller and this second pressure roller.
9. automatic document feeder according to claim 1 is characterized in that wherein the outside face of this accommodation space also comprises a plurality of paper guiding sheets.
10. automatic document feeder according to claim 1 is characterized in that, also comprises an elastic element and is arranged in this first rotating shaft, so that this first rotating shaft, one restoring force to be provided.
11. automatic document feeder according to claim 10 is characterized in that, wherein this elastic element is a torsion spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105595852A CN102476751A (en) | 2010-11-23 | 2010-11-23 | Automatic paper-feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105595852A CN102476751A (en) | 2010-11-23 | 2010-11-23 | Automatic paper-feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102476751A true CN102476751A (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105595852A Pending CN102476751A (en) | 2010-11-23 | 2010-11-23 | Automatic paper-feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102476751A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097965A (en) * | 2013-04-11 | 2014-10-15 | 致伸科技股份有限公司 | Deflection roller device applied to paper conveyance and method for changing conveyance path of paper |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2729681B2 (en) * | 1989-03-24 | 1998-03-18 | 株式会社リコー | Automatic document feeder / ejector |
| US6206368B1 (en) * | 1998-03-17 | 2001-03-27 | Kyocera Mita Corporation | Paper transport device with one roller pair |
| CN101046648A (en) * | 2006-03-31 | 2007-10-03 | 佳能株式会社 | Sheet conveyance apparatus, sheet processing apparatus, and image forming apparatus |
| US7448621B2 (en) * | 2004-03-29 | 2008-11-11 | Canon Kabushiki Kaisha | Sheet conveying apparatus and image forming apparatus |
| US7637501B2 (en) * | 2007-04-05 | 2009-12-29 | Nisca Corporation | Document feeding device and document reading apparatus with opening upstream and downstream guide members |
-
2010
- 2010-11-23 CN CN2010105595852A patent/CN102476751A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2729681B2 (en) * | 1989-03-24 | 1998-03-18 | 株式会社リコー | Automatic document feeder / ejector |
| US6206368B1 (en) * | 1998-03-17 | 2001-03-27 | Kyocera Mita Corporation | Paper transport device with one roller pair |
| US7448621B2 (en) * | 2004-03-29 | 2008-11-11 | Canon Kabushiki Kaisha | Sheet conveying apparatus and image forming apparatus |
| CN101046648A (en) * | 2006-03-31 | 2007-10-03 | 佳能株式会社 | Sheet conveyance apparatus, sheet processing apparatus, and image forming apparatus |
| US7637501B2 (en) * | 2007-04-05 | 2009-12-29 | Nisca Corporation | Document feeding device and document reading apparatus with opening upstream and downstream guide members |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097965A (en) * | 2013-04-11 | 2014-10-15 | 致伸科技股份有限公司 | Deflection roller device applied to paper conveyance and method for changing conveyance path of paper |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20120530 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |