CN101905813B - Paper stopping mechanism and automatic paper feed device using same - Google Patents
Paper stopping mechanism and automatic paper feed device using same Download PDFInfo
- Publication number
- CN101905813B CN101905813B CN2009101489476A CN200910148947A CN101905813B CN 101905813 B CN101905813 B CN 101905813B CN 2009101489476 A CN2009101489476 A CN 2009101489476A CN 200910148947 A CN200910148947 A CN 200910148947A CN 101905813 B CN101905813 B CN 101905813B
- Authority
- CN
- China
- Prior art keywords
- paper
- retaining
- blocking mechanism
- pickup roller
- sheet feed
- 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.)
- Active
Links
Images
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
The invention relates to a paper stopping mechanism and an automatic paper feed device using the same. The automatic paper feed device is provided with a paper feed plate and a paper extraction roller wheel. The paper stopping mechanism comprises a guide element, a paper stopping element and a guide groove, wherein the guide element is provided with a shaft sleeve part and an extending arm, wherein the shaft sleeve part is sleeved on the shaft part of the paper extraction roller wheel; the paper stopping element is provided with a paper stopping part, an inserted pin and a supported part, wherein the extending arm of the guide element upwards supports against the supported part of the paper stopping element; and the guide groove is used for containing the inserted pin of the paper stopping element. Thus when the paper extraction roller wheel is close to the paper feed plate, the guide element linked with the paper extraction roller wheel through the shaft sleeve part can drive the inserted pin of the paper stopping element to translate and rotate in the guide groove so that paper can be smoothly fed because the paper stopping part of the paper stopping element no longer obstructs the front edge of the paper positioned on the paper feed plate.
Description
Technical field
The invention relates to a kind of automatic paper feeder, refer to the paper blocking mechanism in a kind of automatic paper feeder especially.
Background technology
Significantly progressive along with Eltec, all general affairs work is all closely bound up with affairs machines such as photoprinter, facsimile apparatus, chopping machine, scanning devices in the office now, so these affairs machines become information equipment indispensable in the office.But, because numerous affairs machines tends to occupy too big space, even because the Occupation coefficient of each affairs machine is not quite similar, so though can cause the affairs machine Occupation coefficient of some kind low usually, but still must buy more to deal with the situation of the possible period of want or need.
For addressing these problems and meeting now that information products reach " function integration " direction Development Trend towards " miniaturization "; Have multifunctional paper feeding machine (the Multi FunctionPeripheral of functions such as photomechanical printing, printing, fax and scanning concurrently; MFP) so be developed; Therefore the customer only need buy a multifunctional paper feeding machine and just can carry out multinomial general affairs work; And that can reduce space in the working environment takies and promotes craftmanship and efficient, and it is on using and in lifely very have a convenience.
No matter yet be single function affairs machine or multifunctional paper feeding machine; The capital is provided with automatic paper feeder (AutomaticDocument Feeder) and faxes, xeroxs, prints or processing such as scanning will repeatedly place paper (for example original copy) on the sheet feed stacker to be sent to image processing mechanism in the affairs machine; And before getting paper action prerequisite, slip into paper separating device for fear of paper; Automatic paper feeder can be provided with paper blocking mechanism usually, with the function of guaranteeing that paper is placed on can have retaining paper and arrangement paper front edge on the paper-finding frame.
See also Fig. 1, it shows the paper blocking mechanism in traditional automatic paper feeder.As shown in the figure, the retaining paper mode that this paper blocking mechanism adopts is the rotation with limiting part 11 restriction paper stopping part spares 12, makes the lower end 121 of paper stopping part spare 12 be barred from the leading edge of paper 13, to reach the function of retaining paper.When getting paper, limiting part 11 can rotate to a certain angle, and paper stopping part spare 12 lost and stopped this moment; Can do spinning movement around pivot center 122; Make lower end 121 perks and let the normal paper feed of paper, after getting paper and finishing, 12 of paper stopping part spares heavily are returned to original retaining paper position by putting.
Yet; The shortcoming of aforementioned conventional paper blocking mechanism is; If the lid failover of automatic paper feeder is got rid of and is opened, when cover back original position, possibly cause slotting paper and the doubt that paper is broken is arranged, moreover; Paper stopping part spare finishes the back by putting the involution of double recipe formula getting paper, often has the S. A. burr that cause because of counterbalance design or production process to cause moving untrue problem generation.
Therefore, in order to improve the disappearance of above-mentioned prior art, the present invention provides a kind of Improvement type retaining paper apparatus, to guarantee to keep off its function of performance that paper apparatus can be more stable and certain.
Summary of the invention
Main purpose of the present invention is to provide a kind of paper blocking mechanism; It is through guides retaining paper element translation and rotation in guide groove; Make retaining paper element no longer be barred from paper front edge and the smooth paper feed of ability; Use the slotting paper risk of avoiding prior art, and because of counterbalance design with produce the burr problem and cause the bad disappearance of paper blocking mechanism start.
For reaching above-mentioned purpose, of the present invention one implements aspect for a kind of paper blocking mechanism is provided than broad sense, and it is applicable in the automatic paper feeder that this automatic paper feeder has a sheet feed stacker and a pickup roller.This paper blocking mechanism comprises: a guide element, have a shaft sleeve part and an extension arm, and this shaft sleeve part is sheathed on the axial region of this pickup roller; One retaining paper element has a paper stopping part, a latch and a resisted position, and wherein this extension arm of this guide element is this resisted position that upwards is resisted against this retaining paper element; And a guide groove, in order to ccontaining this latch that should retaining paper element.By this; When this pickup roller toward this sheet feed stacker near the time; Can drive this latch translation and rotation in this guide groove of this retaining paper element through this guide element of this shaft sleeve part and this pickup roller interlock, make this paper stopping part of this retaining paper element no longer be barred from paper front edge and the paper feed smoothly on this sheet feed stacker.
Of the present invention another implemented aspect for a kind of automatic paper feeder is provided than broad sense, and it comprises at least: a sheet feed stacker, repeatedly put at least one paper on it; One pickup roller is in order to contact and to present this paper on this sheet feed stacker; And a paper blocking mechanism, in order to the start that responds this pickup roller this paper on this sheet feed stacker blocked or permit this paper and get into and lead in the paper path.This paper blocking mechanism comprises: a guide element, have a shaft sleeve part and an extension arm, and this shaft sleeve part is sheathed on the axial region of this pickup roller; One retaining paper element has a paper stopping part, a latch and a resisted position, and wherein this extension arm of this guide element is this resisted position that upwards is resisted against this retaining paper element; And a guide groove, in order to ccontaining this latch that should retaining paper element.By this; When this pickup roller toward this sheet feed stacker near the time; Can drive this latch translation and rotation in this guide groove of this retaining paper element through this guide element of this shaft sleeve part and this pickup roller interlock, make this paper stopping part of this retaining paper element no longer be barred from this paper front edge and the paper feed smoothly on this sheet feed stacker.
Description of drawings
Fig. 1 is the paper blocking mechanism scheme drawing that shows in traditional automatic paper feeder.
Fig. 2 shows that the automatic paper feeder of preferred embodiment of the present invention is in the part-structure scheme drawing of lid bottom surface.
Fig. 3 is the structural representation after the lid of displayed map 2 removes.
Fig. 4 A-Fig. 4 C be show paper blocking mechanism of the present invention make the flowing mode scheme drawing.
The specific embodiment
Some exemplary embodiments that embody characteristic of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations on different aspects, its neither departing from the scope of the present invention, and explanation wherein and to be shown in be the usefulness of being used as explanation in essence, but not in order to restriction the present invention.
Automatic paper feeder of the present invention is applied in the image processing system, and to be used to supply with the paper that repeatedly places on the sheet feed stacker, wherein this image processing system can be for example scanning device, photoprinter, chopping machine, facsimile apparatus or multifunctional paper feeding machine, and not as limit.
See also Fig. 2, Fig. 3 and Fig. 4 A-Fig. 4 C; Wherein Fig. 2 shows the part-structure scheme drawing of the automatic paper feeder of preferred embodiment of the present invention in the lid bottom surface; What the structural representation after the lid of Fig. 3 displayed map 2 removes, Fig. 4 A-Fig. 4 C then showed paper blocking mechanism of the present invention makes the flowing mode scheme drawing.As shown in the figure; Mainly comprise pickup roller 21, comber 22 and paper blocking mechanism 23 on the lid 20 of automatic paper feeder 2 of the present invention; And the driving through actuating device (not shown) repeatedly places paper P (for example original copy) on the sheet feed stacker 24 (being shown in Fig. 4) to be sent to one by one with many to lead the paper path, be beneficial to be sent to and carry out image processing in the image processing arrangement.
In this embodiment, the axial region 221 of comber 22 directly or indirectly is connected with actuating device, makes comber 22 can respond the driving of actuating device and rotates.Be provided with between comber 22 and the pickup roller 21 and get paper arm 25 to be connected comber 22 and pickup roller 21; And getting paper arm 25 can be rotating shaft by the axial region 221 through comber 22, drive with the start of response comber 22 or actuating device pickup roller 21 near or leave sheet feed stacker 24.In addition; In some embodiment; The axial region 211 of pickup roller 21 can set firmly gear 212; The axial region 221 of comber 22 also can set firmly gear 222, and pickup roller 21 and 22 of combers can be provided with driving gear set 26, and this driving gear set 26 can cooperate start with the gear 222 on the axial region 221 of gear 212 on the axial region 211 of pickup roller 21 and comber 22; So can make the rotation of pickup roller 21 response combers 22 and rotate, lead the paper path movement so that pickup roller 21 drives paper court when contact with paper.Certainly, in some embodiment, driving gear set 26 can also replace by drive belt (not shown), but not as limit.
In one embodiment, as shown in Figure 3, retaining paper element 231 comprises paper stopping part 2311, latch 2312, hole 2313 and resisted position 2314; Wherein, Paper stopping part 2311 is arranged at the bottom of retaining paper element 231, and it contacts with paper front edge to keep off the position of paper, and latch 2312 is symmetricly set in the limit, two opposite sides of retaining paper element 231; And be inserted in (as shown in Figure 2) in the guide groove 233; With moving of restriction retaining paper element 231,2313 perforates in hole are in the upper end of retaining paper element 231, and the cross bar that leaves the top is as resisted position 2314.Guide element 232 comprises a shaft sleeve part 2321, an extension arm 2322 and a hook part 2323; Wherein, Guide element 232 is sheathed on through shaft sleeve part 2321 on the axial region 211 of pickup roller 21, and extension arm 2322 is connected with shaft sleeve part 2321, and extends toward the paper feed direction; And pass the hole 2313 of retaining paper element 231, be arranged at the terminal hook part 2323 of extension arm 2322 then can with the resisted position 2314 of retaining paper element 231 trip mutually.
Please consult Fig. 2 once more; Retaining paper element 231 is arranged on two adjacent spaces walls 201 on the lid 20 of automatic paper feeder 2, between 202; And guide groove 233 correspondences are kept off two latches 2312 of paper elements 231 and are formed on two spaced walls 201,202; Replace then plate of element 234, and be arranged at the below of guide element 232 for extending internally from two spaced walls 201,202.Again, as shown in Figure 4, guide groove 233 is profile holes; Can roughly be divided into line part 2331 and curve 2332, wherein, line part 2331 is perpendicular to horizon and is provided with; And its aperture is slightly larger than the width of the latch 2312 of retaining paper element 231; Curve 2332 is connected with line part 2331 and is crooked towards the direction of pickup roller 21, and its aperture is then greater than the aperture of line part 2331, with latch 2312 translation therein that retaining paper element 231 is provided and the space of rotation.
Below see also Fig. 4, and cooperate Fig. 2 and structure shown in Figure 3 that the flowing mode of doing of paper blocking mechanism of the present invention is described.At first; Shown in Fig. 4 A, under readiness for action, that is before pickup roller 21 gets paper; The paper stopping part 2311 of retaining paper element 231 is the leading edges that contact the paper P that stacks on the sheet feed stacker 24; Lead the paper path to stop that paper P gets into, at the same time, the latch 2312 of retaining paper element 231 is placed in the line part 2331 of guide groove 233.When automatic paper feeder 2 is received the paper feed instruction; Comber 22 will receive the driving of actuating device and rotate, and simultaneously, getting paper arm 25 is rotating shaft with the axial region 221 of comber 22; Drive that pickup roller 21 down rotates and near sheet feed stacker 24; And through the transmission of driving gear set 26, pickup roller 21 can respond the rotation of comber 22 and rotate, to contact and to present the paper P on the sheet feed stacker 24.Shown in Fig. 4 B; Because the shaft sleeve part 2321 of guide element 232 is set on the axial region 211 of pickup roller 21; At pickup roller 21 down in the process near sheet feed stacker 24, the extension arm 2322 of guide element 232 can touch from spaced walls 201,202 toward interior extensions replace element 234, and be fulcrum to replace element 234; The resisted position 2314 that makes extension arm 2322 replace retaining paper element 231 also will keep off paper element 231 and up carry; And make the latch 2312 of retaining paper element 231 leave the line part 2331 of guide groove 233, and walk around line part 2331 and get into curve 2332 with curve 2332 inboard point of connection 2333, at this moment; The paper stopping part 2311 of retaining paper element 231 promptly no longer is barred from the leading edge of paper P, makes pickup roller 21 can be smoothly the paper P of the superiors be sent into and leads in the paper path.Along with being admitted to by more than, the paper on the sheet feed stacker 24 leads the paper path; Pickup roller 21 must under be threaded to more lower position and carry out paper feed with the contact paper; And because the curve 2332 of guide groove 233 has bigger aperture; Make the latch 2312 of leading paper element 231 can in curve 2332, carry out translation and rotation by a relatively large margin; Can be beneficial to guide element 232 and will keep off and carry on the paper element 231, shown in Fig. 4 C, lead in the paper path smoothly undermost paper P on the sheet feed stacker 24 is sent into to higher height and the bigger angle of rotation.
And when the paper feed end, pickup roller 21 screws to the initial position on reverse, and the initial position is got back in 232 rotations of related drive guide element; At the same time; The extension arm 2322 of guide element 232 also can down be replaced retaining paper element 231, retaining paper element 231 is oppositely taken back to the position of Fig. 4 A, so can be before the next one is got paper action beginning; Stopping that the paper P that stacks on the sheet feed stacker 24 gets into leads the paper path, and has the function of arrangement paper front edge simultaneously.
In sum; The present invention provides a kind of paper blocking mechanism, and it mainly comprises retaining paper element, guide element and guide groove, and wherein an end of guide element is sheathed on the axial region of pickup roller; The other end is resisted against retaining paper element; Be used to pickup roller toward sheet feed stacker near getting paper when action, guiding retaining paper element translation and rotation in guide groove make retaining paper element no longer be barred from paper front edge and paper feed smoothly.Because the action of retaining paper element comprises translation and rotation but not simple rotation, the S. A. burr that therefore can not cause because of production process and cause moving unreliable, moreover; Because receiving the interlock of guide element during retaining paper element return to primitive age position equally passes; Therefore need not consider counterbalance design especially, in addition, because retaining paper element can up move; Therefore in the time of when the lid of automatic paper feeder carries out trouble removal after, will covering back original position, can not cause slotting paper and the risk that paper is broken is arranged.Therefore, paper blocking mechanism of the present invention can improve the disappearance of prior art, has the value of industry, and meets the patents important document, files an application in the whence in accordance with the law.
The present invention must make all changes that is equal to or replacement by knowing this technological personage spirit according to the present invention, however the protection domain that neither disengaging such as additional copy application claim are limited.
Claims (10)
1. a paper blocking mechanism is applicable in the automatic paper feeder, and this automatic paper feeder has a sheet feed stacker and a pickup roller, and this paper blocking mechanism comprises:
One guide element has a shaft sleeve part and an extension arm, and this shaft sleeve part is sheathed on the axial region of this pickup roller;
One retaining paper element has a paper stopping part and a resisted position,
It is characterized in that this retaining paper element also has a latch, this paper blocking mechanism also comprises a guide groove in order to this latch of ccontaining this retaining paper element, and this extension arm of this guide element upwards is resisted against this resisted position of this retaining paper element;
By this; When this pickup roller toward this sheet feed stacker near the time; Can drive this latch translation and rotation in this guide groove of this retaining paper element through this guide element of this shaft sleeve part and this pickup roller interlock, make this paper stopping part of this retaining paper element no longer be barred from paper front edge and the paper feed smoothly on this sheet feed stacker.
2. paper blocking mechanism according to claim 1 is characterized in that this guide element also comprises a hook part, is arranged at the end of this extension arm, can with this this resisted position that keeps off paper element trip mutually.
3. paper blocking mechanism according to claim 1 is characterized in that this retaining paper element also comprises a hole, and it is the upper end of perforate in this retaining paper element.
4. paper blocking mechanism according to claim 3, this resisted position that it is characterized in that this retaining paper element are cross bars of this top, hole.
5. paper blocking mechanism according to claim 1 is characterized in that this retaining paper element is arranged between the two adjacent spaces walls on the lid of this automatic paper feeder.
6. paper blocking mechanism according to claim 5 is characterized in that this paper blocking mechanism also comprises to replace element that it is the plate that extends internally from this two spaced walls.
7. paper blocking mechanism according to claim 6; It is characterized in that when this pickup roller toward this sheet feed stacker near the time; This extension arm of this guide element can touch this and replace element; And to replace element with this be fulcrum, makes this extension arm replace this resisted position of this retaining paper element and should keep off the paper element and up carry.
8. paper blocking mechanism according to claim 1 is characterized in that this guide groove is a profile hole, and comprises a line part and a curve.
9. paper blocking mechanism according to claim 8; It is characterized in that this line part is perpendicular to horizon and is provided with; And its aperture is slightly larger than the width of this latch of this retaining paper element, and this curve is to be connected with this line part and towards the space of latch translation therein and rotation.
10. automatic paper feeder comprises at least:
One sheet feed stacker is repeatedly put at least one paper on it;
One pickup roller is in order to contact and to present this paper on this sheet feed stacker; And
One paper blocking mechanism blocks this paper on this sheet feed stacker in order to the start that responds this pickup roller or permits this paper and gets into and lead in the paper path, and this paper blocking mechanism comprises:
One guide element has a shaft sleeve part and an extension arm, and this shaft sleeve part is sheathed on the axial region of this pickup roller;
One retaining paper element has a paper stopping part and a resisted position,
It is characterized in that this retaining paper element also has a latch, this paper blocking mechanism also comprises a guide groove in order to this latch of ccontaining this retaining paper element, and this extension arm of this guide element upwards is resisted against this resisted position of this retaining paper element;
By this; When this pickup roller toward this sheet feed stacker near the time; Can drive this latch translation and rotation in this guide groove of this retaining paper element through this guide element of this shaft sleeve part and this pickup roller interlock, make this paper stopping part of this retaining paper element no longer be barred from this paper front edge and the paper feed smoothly on this sheet feed stacker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101489476A CN101905813B (en) | 2009-06-05 | 2009-06-05 | Paper stopping mechanism and automatic paper feed device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101489476A CN101905813B (en) | 2009-06-05 | 2009-06-05 | Paper stopping mechanism and automatic paper feed device using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101905813A CN101905813A (en) | 2010-12-08 |
| CN101905813B true CN101905813B (en) | 2012-04-04 |
Family
ID=43261441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101489476A Active CN101905813B (en) | 2009-06-05 | 2009-06-05 | Paper stopping mechanism and automatic paper feed device using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101905813B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI464071B (en) * | 2011-11-24 | 2014-12-11 | Cal Comp Electronics & Comm Co | Paper feeding device and multi-function printer using the same |
| CN104249943B (en) * | 2013-06-26 | 2016-09-21 | 东友科技股份有限公司 | There is the paper blocking mechanism rotating element and the automatic paper feeder being suitable for thereof |
| CN104249942B (en) * | 2013-06-26 | 2016-12-28 | 东友科技股份有限公司 | The paper blocking mechanism with guide element and the automatic paper feeder being suitable for thereof |
-
2009
- 2009-06-05 CN CN2009101489476A patent/CN101905813B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| JP特开平6-72581A 1994.03.15 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101905813A (en) | 2010-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI408096B (en) | Stopper mechanism and automatic document feeder using the same | |
| JP4543056B2 (en) | Double-sided feeding device | |
| EP2169935B1 (en) | Sheet transporting apparatus | |
| CN101905813B (en) | Paper stopping mechanism and automatic paper feed device using same | |
| US6349931B1 (en) | Automatic paper feeding system | |
| CN104249943B (en) | There is the paper blocking mechanism rotating element and the automatic paper feeder being suitable for thereof | |
| EP2769947B1 (en) | Sheet feed apparatus, and image forming apparatus and image reading apparatus including the same | |
| JP2015211415A (en) | Multi-function peripheral | |
| TWM525279U (en) | Image input/output device, paper separating mechanism and decelerating roller group | |
| CN104249942B (en) | The paper blocking mechanism with guide element and the automatic paper feeder being suitable for thereof | |
| JP4483638B2 (en) | Paper feeder | |
| JP2009040522A (en) | Sheet feeder, sheet conveying device, image reader and image forming device | |
| JP6413378B2 (en) | Document conveying apparatus, image reading apparatus, and image processing apparatus | |
| JP2019052010A (en) | Sheet conveying device, image reading device, and image forming device | |
| JP2006103949A (en) | Paper feeding tray and image forming device | |
| JP4300992B2 (en) | Paper feeding device and image reading device | |
| TWI594894B (en) | Stopper mechanism having guiding component and automatic document feeder using the same | |
| TWI551465B (en) | Stopper mechanism having rotating component and automatic document feeder using the same | |
| US20080006983A1 (en) | Paper separation mechanism | |
| JP2979861B2 (en) | Facsimile machine | |
| JP5862697B2 (en) | Sheet conveying apparatus and image reading apparatus | |
| JP2013138391A (en) | Document transport device, image reader and image forming apparatus | |
| JP4502966B2 (en) | Recording apparatus and paper feeding mechanism thereof | |
| JP2023078867A (en) | Image recording device | |
| JP5590200B2 (en) | Image reading device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |