CN103716500A

CN103716500A - Paper feeding type scanning device

Info

Publication number: CN103716500A
Application number: CN201210370913.3A
Authority: CN
Inventors: 李浚圩
Original assignee: Primax Electronics Ltd
Current assignee: Primax Electronics Ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2014-04-09

Abstract

The invention provides a paper feeding type scanning device which comprises an automatic paper feeder, a platform type scanner and a power switching mechanism. The automatic paper feeder comprises a paper taking arm and a paper feeding gear. The platform type scanner comprises a scanning module and a scanning gear. The power switching mechanism comprises two driving elements and a planetary gear module. When two driving elements rotate in the same rotation direction, the planetary gear module swings to a position close to the scanning gear, and is meshed with the scanning gear, and the power switching mechanism transfers power to the automatic paper feeder. When two driving elements rotate in different rotation directions, the planetary gear module swings to a position close to the paper feeding gear, and is meshed with the paper feeding gear, and the power switching mechanism transfers power to the platform type scanner. According to the paper feeding type scanning device provided by the invention, the operation of two driving elements is used to provide the power for the automatic paper feeder or the platform type scanner, thus used driving elements are reduced.

Description

Paper feedback scanning device

Technical field

The present invention relates to a kind of scanning means, relate in particular to a kind of paper feedback scanning device with automatic paper feeder and platform type scanner.

Background technology

Science and technology is growing along with the evolution in epoch, the preservation of file also develops by traditional hard copy archive the electronics shelves that become store files along with development in science and technology, generally be used for carrying out the electronic instrument of working of file and be scanning means, scanning means is in order to convert the content of hard copy file to electronics shelves by the mode scanning, so that user propagates, arranges or preserves.

Early stage scanning means is a platform type scanner, and it must place single file on its scanning platform, and the scanning of single file is only carried out in each running.When user's wish scans the image of a plurality of files, must repeatedly replace the file being positioned on its scanning platform with manual mode, be just accomplished the scanning of a plurality of files.In view of manual turn-over too bothers, therefore develop on the market automatic paper feeder, it coordinates platform type scanner and forms paper feedback scanning device, prints, and do not need manual alternate file can complete the scanning of a plurality of files to carry out the autoamtic paper feeding ranks of going forward side by side for a plurality of files.

Next structure and the operation situation of existing paper feedback scanning device are described.Refer to Fig. 1, the cross-section structure schematic side view that it is existing paper feedback scanning device.Existing paper feedback scanning device 1 comprises an automatic paper feeder 10 and a platform type scanner 11, and automatic paper feeder 10 comprises that a feeding box 101, a paper output box 102, get paper arm 103, a upper cover 104, a paper-feeding channel 105, a plurality of paper feed roller set 106 and a paper delivery roller set 107.Platform type scanner 11 is arranged at the below of automatic paper feeder 10, and it comprises one scan module 111, a driving wheel group 112, a driving belt 113, one scan window 114 and one scan platform 115.

In automatic paper feeder 10, feeding box 101 is in order to place at least one file S not being scanned, and paper output box 102 is positioned at the below of feeding box 101, and it is in order to place at least one file having scanned.Get one end that paper arm 103 is positioned at the below of upper cover 104 and is positioned at paper-feeding channel 105, it can swing and be fed to the file being positioned on feeding box 101 with respect to upper cover and enter paper-feeding channel 105.Paper-feeding channel 105 is through the scanning window 114 of platform type scanner 11, and it is used for file and scans window 114 by going to, and a plurality of paper feed roller set 106 are arranged on paper-feeding channel 105, make it in the interior movement of paper-feeding channel 105 in order to feed documents.Paper delivery roller set 107 is positioned at the other end of paper-feeding channel 105, its in order to be fed to by scanning window 114 file to paper output box 102.

In platform type scanner 11, driving wheel group 112 and driving belt 113 are arranged at the below of scanning window 114 and scanning platform 115, and driving wheel group 112 is connected in driving belt 113, and driving belt 113 is connected in scan module 111.When driving wheel group 112 is driven, while rotating, driving wheel group 112 drives driving belts 113, makes driving belt 113 drive scan modules 111 to move.When the independent usage platform formula of user scanner 11, first file is positioned on scanning platform 115, afterwards, driving wheel group 112 and driving belt 113 operate and drive scan module 111 toward the right-hand movement of Fig. 1, make scan module 111 be moved into the below of scanning platform 115, and it move and scan the file being positioned on scanning platform 115 along scanning platform 115.After having scanned, driving wheel group 112 and driving belt 113 runnings and drive scan module 111 to move and be returned to the initial position of scan module 111 that is the reset of scan module 111 toward the left of Fig. 1.The above-mentioned operation situation that is existing platform type scanner 11.

Next illustrate that automatic paper feeder 10 coordinates the operation situation of platform type scanner 11.In Fig. 1, when automatic paper feeder 10 not yet operates, it is got paper arm 103 and is positioned at the position close to upper cover 104, so that user places a plurality of files to feeding box 101, and one end of a plurality of files is positioned at the below of getting paper arm 103.Refer to Fig. 2, the cross-section structure schematic side view of the automatic paper feeder running that it is existing paper feedback scanning device.When automatic paper feeder 10 running, it is driven and swing with respect to upper cover 104 that it gets paper arm 103, and get paper arm 103 and be rocked to the position contacting with a plurality of file S, so that the file being fed in a plurality of file S enters paper-feeding channel 105.Next, the file that enters paper-feeding channel 105 is fed to scanning window 114 by a plurality of paper feed roller set 106, and the scan module 111 that is moved into scanning window 114 belows scans the file by paper-feeding channel 105 by scanning window 114, now, driving wheel group 112 and driving belt 113 do not operate, and scan module 111 does not move.When file be fed and leave scanning window 114, and after scan module 111 scanning this document complete, next file in a plurality of file S is also fed and is entered paper-feeding channel 105 by above-mentioned operation, and the file having scanned is fed to paper output box 102 by paper delivery roller set 107.When a plurality of file S have all been scanned, and after being fed on paper output box 102, user can be by taking out a plurality of file S on paper output box 102.On the other hand, driving wheel group 112 and driving belt 113 runnings, reset scan module 111.The scanning of a plurality of file S completes.

According to above-mentioned known, in the operation of existing paper feedback scanning device 1, automatic paper feeder 10 must be connected to different driving element (not being shown in figure) from platform type scanner 11, just can obtain power and carry out above-mentioned paper feed work and scanning work.Generally speaking, be provided with two driving elements in automatic paper feeder 10, it is connected to gets paper arm 103 and paper feed roller set 106, and desirable paper and paper feed.In platform type scanner 11, be provided with a driving element, it is connected in driving wheel group 112 and motion scan module 111.Yet, three driving elements are set in paper feedback scanning device not only to be needed outside higher cost, three driving elements more can consume outside larger electric power, and must arrange in paper feedback scanning device larger space for accommodating a plurality of driving elements in wherein, and increase the volume of paper feedback scanning device.Therefore, need a kind of driving element that lesser amt is set in paper feedback scanning device wherein.

Summary of the invention

The object of the present invention is to provide a kind of a plurality of driving elements that lesser amt is set in paper feedback scanning device wherein.

In a preferred embodiment, the invention provides a kind of paper feedback scanning device, in order to scan a file, this paper feedback scanning device comprises: an automatic paper feeder, in order to be fed to this document, this automatic paper feeder has a paper feed gear;

One platform type scanner, is arranged at the below of this automatic paper feeder, and in order to scan this document, this platform type scanner has one scan gear; And

One powershift mechanism, is arranged at the adjacent place of this automatic paper feeder and this platform type scanner, in order to transmit one first power, gives this automatic paper feeder, or transmits this first power and give this platform type scanner, and this powershift mechanism comprises:

One first driver module, in order to this first power to be provided and to export this first power, this first driver module comprises one first driving element, and this first power is provided in order to rotation;

One planet gear module, is connected in this first driver module, in order to transmit this first power with the engagement of this paper feed gear, gives this automatic paper feeder, or meshes with this scanning gear and transmit this first power and give this platform type scanner;

One swings module, and close to this planetary gear module, while contacting with this planetary gear module in order to swing module when this, auxiliary this planetary gear module swings toward the direction of this paper feed gear, or swings toward the direction of this scanning gear; And

One second driver module, is connected in this swing module, in order to transmit one second power, gives this swing module, and this swing module is contacted with this planetary gear module, and this second driver module comprises one second driving element, and this second power is provided in order to rotation; Wherein toward one first direction of rotation, rotates when this first driving element, and this second driving element is when rotate toward this first direction of rotation, this planetary gear module swings and meshes with this scanning gear toward the direction of this scanning gear; And toward one second direction of rotation in contrast to this first direction of rotation, rotate when this first driving element, and this second driving element is when rotate toward this first direction of rotation, this planetary gear module toward the direction of this paper feed gear swing and with this paper feed gear engagement.

In a preferred embodiment, this first driver module more comprises:

One first driven wheel, is connected in this first driving element, comes from this first power of this first driving element in order to transmission; And

One first transmission gear, meshes and is connected in this planetary gear module with this first driven wheel, in order to transmit this first power, gives this planetary gear module; Wherein, when this first driving element rotates toward this first direction of rotation, this first driven wheel rotates toward this first direction of rotation with this first driving element, and this first transmission gear rotates toward this second direction of rotation; And when this first driving element rotates toward this second direction of rotation, this first driven wheel rotates toward this second direction of rotation with this first driving element, and this first transmission gear rotates toward this first direction of rotation.

In a preferred embodiment, this automatic paper feeder more comprises gets paper arm, one upper cover and at least one paper feed roller set, this is got paper arm and is connected in this paper feed gear, in order to be driven by this first driver module, making this get paper arm is fed to this document and enters this automatic paper feeder or swing with respect to this upper cover, this upper cover is arranged at this top of getting paper arm, and this at least one paper feed roller set is connected in this second driver module, in order to be driven by this second driver module, be fed to this document moves in this automatic paper feeder, this platform type scanner more comprises one scan module, this scan module is connected in this scanning gear, in order to be driven by this first driver module and to make this scan module move and scan this document, when the engagement of this planetary gear module and this paper feed gear, and this first driving element is when rotate toward this first direction of rotation, and this is got paper arm and is fed to this document and enters this automatic paper feeder, when the engagement of this planetary gear module and this paper feed gear, and this first driving element is when rotate toward this second direction of rotation, and this is got paper arm and swings toward the direction of this upper cover, when the engagement of this planetary gear module and this scanning gear, and this first driving element is when rotate toward this first direction of rotation, and this scan module moves and scan this document toward the direction that is away from this scanning gear, and when this planetary gear module and this scanning gear engagement, and this first driving element is when rotate toward this second direction of rotation, and the past direction close to this scanning gear of this scan module moves.

In a preferred embodiment, this this get paper arm and more comprise one first power transmission shaft, be connected in this paper feed gear, make this first power can be by this paper feed gear and this first power transmission shaft and transfer to this and get paper arm.

In a preferred embodiment, this platform type scanner more comprises:

One first umbrella gear, is connected in this scanning gear and rotates with this scanning gear synchronous;

One second umbrella gear, with this first umbrella gear engagement, and is driven by this first umbrella gear and rotates; And

One driving belt, is connected in this second umbrella gear and this scan module, in order to be driven and mobile this scan module by the first umbrella gear.

In a preferred embodiment, this planetary gear module comprises:

One swing arm, is connected in a rotation axis of this first transmission gear and can swings with respect to this rotation axis;

One central gear, is sheathed on this rotation axis and is positioned at a side of this swing arm, in order to synchronize and to rotate with this rotation axis;

One first planetary gear, be arranged on this swing arm and be positioned at this central gear a side and with the engagement of this central gear, in order to this scanning gear engagement or with this paper feed gear engagement, and by this central gear, driven and transmit this power give this scanning gear or with this paper feed gear; And

One second planetary gear, be arranged on one second end of this swing arm and be positioned at this central gear an opposite side and with this central gear engagement, in order to contact with this swing module, and by this central gear, driven and this swing arm is swung toward the direction of this paper feed gear, or swinging toward the direction of this scanning gear.

In a preferred embodiment, this planetary gear module comprises:

One swing arm, is connected in this first driver module and can swings with respect to this first driver module;

One central gear, is connected in this first driver module and is positioned at a side of this swing arm, in order to because rotating by the first power;

One first planetary gear, be arranged on this swing arm and be positioned at this central gear a side and with the engagement of this central gear, in order to this scanning gear engagement or with this paper feed gear engagement, and by this central gear, driven and transmit this first power give this scanning gear or with this paper feed gear; And

In a preferred embodiment, this powershift mechanism more comprises a stuck-module, is arranged at the adjacent place of this swing arm and contacts with a first end of this swing arm, and this stuck-module comprises:

One fixed lever, in order to this end of contacting with this swing arm and fixing this swing arm in wherein, one second breach that this fixed lever has one first breach and is positioned at this first breach below, when this first end of this swing arm is inserted in this first breach and while being fixed in wherein, this first planetary gear maintains and this paper feed gear engagement, and be inserted in this second breach and while being fixed in wherein when this first end of this swing arm, this first planetary gear maintains and this scanning gear engagement; And

One first flexible member, is connected in this fixed lever, in order to provide one first elastic force to give this fixed lever, this fixed lever is resetted.

In a preferred embodiment, when this first driving element rotates toward this first direction of rotation, and this second driving element is toward when this second direction of rotation is rotated, with respect to this first driver module, the direction toward this scanning gear swings this swing arm, and this first end of this swing arm pushes against this fixed lever and deviates from this first breach; And when this first driving element is toward this second direction of rotation rotation, and when this second driving element rotates toward this second direction of rotation, with respect to this first driver module, the direction toward this paper feed gear swings this swing arm, and this first end of this swing arm pushes against this fixed lever and deviates from this second breach.

In a preferred embodiment, this second driver module more comprises:

One second driven wheel, is connected in this second driving element, comes from this second power of this second driving element in order to transmission;

One second transmission gear, with this second driven wheel engagement, gives this swing module in order to export this second power;

One second rotation axis, swings module adjacent to this, and is connected in this second transmission gear and rotates with this second transmission gear synchronous; And

One second flexible member, is sheathed on this second rotation axis and with this swing module and contacts, and in order to because providing one second elastic force to give this swing module by the second power, makes this swing module be pushed against and contact with this planetary gear module.

In a preferred embodiment, this swing module comprises:

One displacement projection, contacts close to this second driver module and with this second driver module, in order to be moved by these the second driver module pushing and pressing;

One reinforcing post, close to this displacement projection, contacts with this planetary gear module in order to these displacement projection pushing and pressing that are moved, and this reinforcing post has a plurality of broached-tooth designs, in order to the one second planetary gear engagement with this planetary gear module; And

One the 3rd flexible member, is connected in this reinforcing post, in order to provide one the 3rd elastic force to give this reinforcing post, this reinforcing post is resetted and push against this displacement projection, and this displacement projection resets.

In a preferred embodiment, the present invention more provides a kind of paper feedback scanning device, and in order to scan a file, this paper feedback scanning device comprises: an automatic paper feeder, and in order to be fed to this document, this automatic paper feeder has a paper feed gear;

One second driver module, is connected in this swing module, in order to transmit one second power, gives this swing module, and this swing module is contacted with this planetary gear module, and this second driver module comprises one second driving element, and this second power is provided in order to rotation; Wherein toward one first direction of rotation, rotates when this first driving element, and this second driving element is when rotating in contrast to one second direction of rotation of this first direction of rotation, this planetary gear module swings and meshes with this scanning gear toward the direction of this scanning gear; And toward this second direction of rotation, rotate when this first driving element, and this second driving element is when rotate toward this second direction of rotation, this planetary gear module toward the direction of this paper feed gear swing and with this paper feed gear engagement.

In a preferred embodiment, this first driver module more comprises one first driven wheel, is connected in this first driving element, comes from this first power of this first driving element in order to transmission; Wherein, when this first driving element rotates toward this first direction of rotation, this first driven wheel rotates toward this first direction of rotation with this first driving element; And when this first driving element rotates toward this second direction of rotation, this first driven wheel rotates toward this second direction of rotation with this first driving element.

In a preferred embodiment, this planetary gear module comprises:

In a preferred embodiment, this second driver module more comprises:

One second rotation axis, swings module adjacent to this, and is connected in this second driven wheel and synchronizes with this second driven wheel and rotate; And

In a preferred embodiment, this swing module comprises:

Paper feedback scanning device of the present invention can utilize the running of two driving elements and provide power to give automatic paper feeder or platform type scanner, compared to prior art, it not only can save the purchase cost of the 3rd driving element, more can save the 3rd the required power cost expending of driving element.

Accompanying drawing explanation

Fig. 1 is the cross-section structure schematic side view of existing paper feedback scanning device.

Fig. 2 is the cross-section structure schematic side view of the automatic paper feeder running of existing paper feedback scanning device.

Fig. 3 is the cross-section structure schematic side view of paper feedback scanning device of the present invention in the first preferred embodiment.

Fig. 4 is the partial structurtes schematic side view of paper feedback scanning device of the present invention in the first preferred embodiment.

The structural representation that the first power gives platform type scanner is transmitted in the first preferred embodiment in the powershift mechanism that Fig. 5 and Fig. 5 A are paper feedback scanning device of the present invention.

The second driver module that Fig. 6 and Fig. 6 A are paper feedback scanning device of the present invention pushes against the structural representation that swings module in the first preferred embodiment.

The structural representation that the swing arm that Fig. 7 and Fig. 7 A are paper feedback scanning device of the present invention swings toward paper feed gear direction in the first preferred embodiment.

The structural representation that the powershift mechanism that Fig. 8 and Fig. 8 A are paper feedback scanning device of the present invention is connected with paper feed gear in the first preferred embodiment.

The second driver module that Fig. 9 and Fig. 9 A are paper feedback scanning device of the present invention pushes against the structural representation that swings module in the first preferred embodiment.

The structural representation that the swing arm that Figure 10 and Figure 10 A are paper feedback scanning device of the present invention swings toward scanning gear direction in the first preferred embodiment.

Figure 11 is that the structural representation that the first power gives platform type scanner is transmitted in the second preferred embodiment in the powershift mechanism of paper feedback scanning device of the present invention.

Wherein, description of reference numerals is as follows:

1,2 paper

feedback scanning device

10,20 automatic paper feeders

11,21 platform type scanner 22,32 powershift mechanisms

101,201 feeding box 102,202 paper output box

103,203 get paper arm 104,204 upper covers

105,205 paper-feeding channel 106,206 paper feed roller set

107,207 paper delivery roller set 111,211 scan modules

112 driving wheel group 113,213 driving belts

114,214 scanning window 115,215 scanning platforms

208 paper feed gear 212 driving gear set

216 scanning gear 217 shifting axles

218 slide rail 221,321 first driver modules

222,322 planetary gear modules 223,323 swing module

224,324 second driver module 225,325 stuck-modules

2031 first power transmission shafts 2032 connect gear

2121 first umbrella gear 2,122 second umbrella gears

2211,3,211 first driving element 2212,3,212 first driven wheels

2213 first transmission gear 2221 swing arms

2222 central gear 2,223 first planetary gears

2224 second planetary gear 2231,3231 displacement projections

2232,3232 reinforcing posts 2233 the 3rd flexible member

2241,3,241 second driving element 2242,3,242 second driven wheels

2243 second transmission gears 2244,3242A the second rotation axis

2245,3,243 second flexible member 2251 fixed levers

2252 first flexible member 2213A, 3212A the first rotation axis

2232A broached-tooth design 2232B sliding tray

2251A first breach 2251B the second breach

S, S ^*file C1, C1 ^*the first direction of rotation

C2, C2 ^*the second direction of rotation

Embodiment

The invention provides the paper feedback scanning device that a kind of power respectively gives automatic paper feeder and platform type scanner.Refer to Fig. 3, it is the cross-section structure schematic side view of paper feedback scanning device of the present invention in the first preferred embodiment.Paper feedback scanning device 2 is in order to scan a file S ^*, it comprises an automatic paper feeder 20, a platform type scanner 21 and a powershift mechanism 22 (please refer to Fig. 4).Automatic paper feeder 20 is in order to be fed to this document S ^*, it comprises that a feeding box 201, a paper output box 202, get paper arm 203, a upper cover 204, a paper-feeding channel 205, a plurality of paper feed roller set 206, a paper delivery roller set 207 and a paper feed gear 208 (please refer to Fig. 4).Platform type scanner 21 is arranged at the below of automatic paper feeder 20, in order to scan this document S ^*, it comprises one scan module 211, a driving gear set 212, a driving belt 213, one scan window 214, one scan platform 215, one scan gear 216 (please refer to Fig. 4) and a shifting axle 217.Identical haply with prior art with structure and the operation situation of platform type scanner 21 about automatic paper feeder 20, thus repeat no more, and will describe in detail in after a while with existing paper feedback scanning device 1 difference.

Next refer to Fig. 4, Fig. 5 and Fig. 5 A, Fig. 4 is the partial structurtes schematic side view of paper feedback scanning device of the present invention in the first preferred embodiment, and the structural representation that the first power gives platform type scanner is transmitted in the first preferred embodiment in the powershift mechanism that Fig. 5 and Fig. 5 A are paper feedback scanning device of the present invention.Powershift mechanism 22 is arranged at the adjacent place of automatic paper feeder 20 and platform type scanner 21, in order to transmit one first power, gives automatic paper feeder 20, or transmits this first power and give platform type scanner 21.Powershift mechanism 22 comprises that one first driver module 221, a planet gear module 222, swing module 223, one second driver module 224 and a stuck-module 225, driver module 221 is in order to provide this first power and to export this power and give planetary gear module 222, planetary gear module 222 is connected in the first driver module 221, in order to transmit this first power with paper feed gear 208 engagement, give automatic paper feeder 20, or transmit this first power with 216 engagements of scanning gear and give platform type scanner 21.Swing module 223 close to planetary gear module 222, in order to when swinging module 223 and contact with planetary gear module 222, planetary gear module 222 because of should the first power toward the direction swing of paper feed gear 208, or the past direction swing that scans gear 216.

The second driver module 224 is connected in the paper feed roller set 206 in a plurality of paper feed roller set 206 and swings module 223, for the clear powershift mechanism 22 showing in figure, therefore only show in Fig. 4 that the second driver module 224 is connected in swing module 223, and do not show that it is connected in paper feed roller set 206, wherein the second driver module 224 is to be connected in paper feed roller set 206 by a gear train (not being shown in figure).The second driver module 224 gives paper feed roller set 206 and swings module 223 in order to transmit one second power, makes to swing module 223 and contacts with planetary gearsets 222, and make 206 runnings of paper feed roller set and feed documents S ^*in paper-feeding channel 205.Stuck-module 225 is arranged at the adjacent place of planetary gear module 222 and contacts with planetary gear module 222, in order to when planetary gear module 222 fixing planetary gear module 222 during with 208 engagement of paper feed gear, and it is not swung and maintain the state meshing with paper feed gear 208, or when planetary gear module 222 fixing planetary gear module 222 during with 216 engagement of scanning gear, and it is not swung and maintain and scan the state that gear 216 meshes.

In Fig. 4, paper feed gear 208 is connected in gets paper arm 203, in order to driven and make to get paper arm 203 feed documents S ^*enter the paper-feeding channel 205 of automatic paper feeder 20 or swing with respect to upper cover 204, and upper cover 204 is arranged at the top of getting paper arm 203.Get paper arm 203 and comprise that one first power transmission shaft 2031 and connects gear 2032, power transmission shaft 2031 is connected in and connects gear 2032, and connect gear 2032 and 208 engagements of paper feed gear, make this power transfer to and to get paper arm 203 by paper feed gear 208, connection gear 2032 and the first power transmission shaft 2031.In platform type scanner 21, its driving gear set 212 is connected in scanning gear 216, this power that comes from the first driver module 221 in order to transmission, driving gear set 212 comprises one first umbrella gear 2121 and one second umbrella gear 2122, the first umbrella gear 2121 is connected in scanning gear 216 and synchronizes rotation with scanning gear 216, and the second umbrella gear 2122 and the first umbrella gear 2121 engagements, and driven and rotate by the first umbrella gear 2121.And driving belt 213 is connected in the second umbrella gear 2122 and scan module 211, in order to be driven by the first umbrella gear 2121, motion scan module 211 makes scan module 211 move along shifting axle 217.

Please continue to refer to Fig. 5 and Fig. 5 A, the first driver module 221 comprises that one first driving element 2211, one first driven wheel 2212 and one first transmission gear 2213, the first driving elements 2211 provide this first power in order to rotation.The first driven wheel 2212 is connected in the first driving element 2211, this first power that comes from the first driving element 2211 in order to transmission, and the first transmission gear 2213 and the first driven wheel 2212 mesh and are connected in planetary gear module 222, in order to export this first power, give planetary gear module 222, the first transmission gear 2213 has one first rotation axis 2213A, in order to be connected with planetary gear module 22.In this preferred embodiment, the first driving element 2211 is a CD-ROM drive motor, and the first rotation axis 2213A and the first transmission gear 2213 one-body molded, and the first direction of rotation C1 is clockwise direction, the second direction of rotation C2 be counter clockwise direction.

Planetary gear module 222 comprises a swing arm 2221, a central gear 2222, one first planetary gear 2223 and one second planetary gear 2224, and swing arm 2221 is connected in the first rotation axis 2213A of the first transmission gear 2213 and can swings with respect to the first rotation axis 2213A.Central gear 2222 is sheathed on the first rotation axis 2213A above and is positioned at a side of swing arm 2221, in order to synchronize and to rotate with the first rotation axis 2213A, the first planetary gear 2224 be arranged on swing arm 2221 and be positioned at central gear 2222 a side and with central gear 2222 engagement, its in order to the engagement of scanning gear 216 or with 208 engagements of paper feed gear, and by central gear 2222, driven and transmit this power give scanning gear 216 or with paper feed gear 208.The second planetary gear 2224 be arranged on one second end of swing arm 2221 and be positioned at central gear 2222 opposite side and with central gear 2222 engagements, in order to contact and driven by central gear 2222 and rotate with swinging module 223, swing arm 2221 is swung toward the direction swing of scanning gear 216 or the direction of past paper feed gear 208.

Swing module 223 and comprise a displacement projection 2231, a reinforcing post 2232 and one the 3rd flexible member 2233, displacement projection 2231 contacts close to the second driver module 224 and with the second driver module 224, in order to be moved by the second driver module 224 pushing and pressing.Reinforcing post 2232 is close to displacement projection 2231, in order to displacement projection 2231 pushing and pressing that are moved, contact with planetary gear module 222, wherein reinforcing post 2232 has a plurality of broached-tooth design 2232A and a sliding tray 2232B, a plurality of broached-tooth design 2232A are in order to the second planetary gear 2224 engagements with planetary gear module 222, and sliding tray 2232B is arranged at the bottom of reinforcing post 2232, in order to slide rail 218 combinations with platform type scanner 21, so that reinforcing post 2232 is pushed against and moves.When a plurality of broached-tooth design 2232A and the second planetary gear 2224 engagement, in response to a plurality of broached-tooth design 2232A with the second planetary gear 2224 engagement and coordinate this first power from the first driver module 221, swing arm 2221 is able to swing with respect to the first rotation axis 2213A, makes the first planetary gear 2223 depart from scanning gear 216 or paper feed gear 208.The 3rd flexible member 2233 is connected in reinforcing post 2232, in order to provide one the 3rd elastic force to give reinforcing post 2232, reinforcing post 2232 is resetted and pushing and pressing displacement projection 2231, and displacement projection 2231 reset, in this preferred embodiment, the 3rd flexible member 2233 is a helical spring.

The second driver module 224 comprises one second driving element 2241, one second driven wheel 2242, one second transmission gear 2243, one second rotation axis 2244 and one second flexible member 2245.The second driving element 2241 provides this second power in order to rotation, the second driven wheel 2242 is connected in the second driving element 2241, and it comes from this second power of the second driving element 2241 in order to transmission.The second transmission gear 2243 and the second driven wheel 2242 engagements, in order to export this second power, give swing module 223, the second rotation axis 2244 is adjacent to the displacement projection 2231 that swings module 223, and it is connected in the second transmission gear 2243 and the rotation of synchronizeing with the second transmission gear 2243 with fixing mode.The second flexible member 2245 is sheathed on the second rotation axis 2244 and with displacement projection 2231 and contacts, in order to because providing one second elastic force to give displacement projection 2231 by the second power, displacement projection 2231 is pushed against and is moved, and mobile displacement projection 2231 pushing and pressing reinforcing posts 2232, make reinforcing post 2232 contact with planetary gear module 222.In this preferred embodiment, the second flexible member 2245 is a torsion spring.

In Fig. 5, stuck-module 225 is arranged at the adjacent place of swing arm 2221 and contacts with a first end of swing arm 2221, stuck-module 225 comprises a fixed lever 2251 and one first flexible member 2252, fixed lever 2251 in order to contact with swing arm 2221 and fixedly the first end of swing arm 2221 in wherein.Fixed lever 2251 has one first breach 2251A and one second breach 2251B, the second breach 2251B is positioned at the below of the first breach 2251A, wherein the first end when swing arm 2221 is inserted in the first breach 2251A and while being fixed in wherein, the first planetary gear 2223 maintains and 208 engagements of paper feed gear, to avoid the first planetary gear 2223 to depart from the transmission that maintains power in paper feed gear 208.In like manner, when the first end of swing arm 2221 is inserted in the second breach 2251B and while being fixed in wherein, the first planetary gear 2223 maintains and scans gear 216 engagements, to avoid the first planetary gear 2223 to depart from the transmission that maintains power in scanning gear 216.The first flexible member 2252 is connected in fixed lever 2251, in order to provide one first elastic force to be fixed bar 2251, fixed lever 2251 is resetted, and in this preferred embodiment, the first flexible member 2252 is a helical spring.

Next the operation situation of powershift mechanism 22 is described.Please refer to Fig. 4, Fig. 5 and Fig. 5 A, and Fig. 5 and Fig. 5 A demonstrate the first planetary gear 2223 of powershift mechanism 22 and the situation of scanning gear 216 engagements, now, the first end of swing arm 2221 stretches in the second breach 2251B of fixed lever 2251 and is fixed in wherein, and the second planetary gear 2224 does not contact with the reinforcing post 2232 that swings module 223, that is the second planetary gear 2224 does not mesh with a plurality of broached-tooth design 2232A of reinforcing post 2232.When the first driving element 2211 rotates toward the first direction of rotation C1, and when the second driving element 2241 does not rotate, the first driven wheel 2212 rotates and drives the first transmission gear 2213 and the first rotation axis 2213A to rotate toward the second direction of rotation C2 toward the first direction of rotation C1.And central gear 2222 is synchronizeed with the first rotation axis 2213A toward the second direction of rotation C2 rotation, and drive the first planetary gear 2223 to rotate toward the first direction of rotation C1, make to scan gear 216 and rotate toward the second direction of rotation C2, and the first umbrella gear 2121 is synchronizeed and rotated toward the second direction of rotation C2 with scanning gear 216.Be driven and rotate toward the first direction of rotation C1 with the second umbrella gear 2122 of the first umbrella gear 2121 engagements, and driving belt 213 is driven by the second umbrella gear 2122 and drives the right-hand movement of scan module 211 in along shifting axle 217 toward Fig. 3, meanwhile, scan module 211 is along 215 couples of file S of scanning platform ^*scan.

As scan module 211 scanning document S ^*complete, and the first driving element 2211 reversion and while rotating toward the second direction of rotation C2, the second driving element 2241 maintains and does not rotate, and the first driven wheel 2212 rotates and drives the first transmission gear 2213 and the first rotation axis 2213A to rotate toward the first direction of rotation C1 toward the second direction of rotation C2 thereupon.And central gear 2222 is synchronizeed with the first rotation axis 2213A toward the first direction of rotation C1 rotation, and drive the first planetary gear 2223 to rotate toward the second direction of rotation C2, make to scan gear 216 and rotate toward the first direction of rotation C1, and the first umbrella gear 2121 is synchronizeed and rotated toward the first direction of rotation C1 with scanning gear 216.Be driven and rotate toward the second direction of rotation C2 with the second umbrella gear 2122 of the first umbrella gear 2121 engagements, and driving belt 213 is driven by the second umbrella gear 2122 and drives the left of scan module 211 in along shifting axle 217 toward Fig. 3 to move, that is scan module 211 resets.

Next please refer to Fig. 5, Fig. 6 and Fig. 6 A, the second driver module that Fig. 6 and Fig. 6 A are paper feedback scanning device of the present invention pushes against the structural representation that swings module in the first preferred embodiment.After scan module 211 resets, the first driving element 2211 decommissions, and the second driving element 2241 operates and rotates toward the first direction of rotation C1, the second driven wheel 2242 is driven and rotates toward the first direction of rotation C1, and it also drives the second transmission gear 2243 to rotate toward the second direction of rotation C2, simultaneously, the second rotation axis 2244 is synchronizeed and is rotated toward the second direction of rotation C2 with the second transmission gear 2243, and drive the second flexible member 2245 pushing and pressing displacement projections 2231, displacement projection 2231 is moved.Next, the displacement projection 2231 pushing and pressing reinforcing posts 2232 that are moved, the sliding tray 2232B of reinforcing post 2232 is moved with respect to slide rail 218, and reinforcing post 2232 contacts with planetary gear module 222, wherein the second planetary gear 2224 engagements of a plurality of broached-tooth design 2232A of reinforcing post 2232 and planetary gear module 222, as shown in Fig. 6 and Fig. 6 A.

After its a plurality of broached-tooth design 2232A and the second planetary gear 2224 engagements, the first driving element 2211 operates again and it rotates toward the second direction of rotation C2, in response to the engagement between a plurality of broached-tooth design 2232A and the second planetary gear 2224 and the first driving element 2211, toward the second direction of rotation C2, rotate this first power of exporting, swing arm 2221 is able to swing with respect to the first rotation axis 2213A, and the first end of swing arm 2221 is deviate from the second breach 2251B, wherein the first end of swing arm 2221 pushes against fixed lever 2251 a little, fixed lever 2251 is moved and compress the first flexible member 2252, and first flexible member 2252 accumulation the first elastic forces.After the first end of swing arm 2221 is deviate from the second breach 2251B, because central gear 2222 rotates toward the first direction of rotation C1, therefore the second planetary gear 2224 rotates toward the second direction of rotation C2 accordingly, making swing arm 2221 obtain the direction of paper feed gear 208 in the past swings, and the first end of swing arm 2221 continues pushing and pressing fixed lever 2251, fixed lever 2251 is moved and compress further the first flexible member 2252, and the first flexible member 2252 is accumulated the first elastic force further, as shown in Fig. 7 and Fig. 7 A.

When swing arm 2221 continues to swing toward the direction of paper feed gear 208, and when the first planetary gear 2223 on swing arm 2221 closes with paper feed gear 208 Nie, the first end of swing arm 2221 moves to the place ahead of the first breach 2251A of fixed lever 2251, and the first end of swing arm 2221 no longer pushes against fixed lever 2251, the first elastic force that the first flexible member 2252 accumulates is discharged and apply and be fixed bar 2251, and fixed lever 2251 resets, simultaneously, reset in response to fixed lever 2251, the first end of the coated swing arm 2221 of its first breach 2251A, make the first end of swing arm 2221 present the state being inserted in the first breach 2251A, and fixedly the first end of swing arm 2221 in the first breach 2251A.The first power that powershift mechanism 22 provides the first driver module 221 switches to power transmission to automatic paper feeder 20 by transferring to platform type scanner 21.

After the first planetary gear 2223 closes with paper feed gear 208 Nie and the first end of swing arm 2221 is inserted in the first breach 2251A, the first driving element 2211 and the second driving element 2241 all stop operating, the second driven wheel 2242, the second transmission gear 2243 and the second rotation axis 2244 are all stopped operating, and the second flexible member 2245 stop pushing against displacement projection 2231.Now, the 3rd flexible member 2233 provides the 3rd elastic force to give reinforcing post 2232, and the sliding tray 2232B of reinforcing post 2232 is moved with respect to slide rail 218, and reinforcing post 2232 resets.And the reinforcing post 2232 pushing and pressing displacement projections 2231 that reset reset displacement projection 2231, therefore, a plurality of broached-tooth design 2232A of reinforcing post 2232 no longer mesh with the second planetary gear 2224, as shown in Fig. 8 and Fig. 8 A.

In the situation of closing in the first planetary gear 2223 and paper feed gear 208 Nie, the first driving element 2211 operates and rotates toward the first direction of rotation C1, make to get paper arm 203 and swing toward the direction away from upper cover 204 with respect to upper cover 204, and with the file S being positioned on feeding box 201 ^*contact, with feed documents S ^*enter the paper-feeding channel 205 of automatic paper feeder 20.Next, the second driving element 2241 operates and rotates toward the second direction of rotation C2, and a plurality of paper feed roller set 206 are rotated and feed documents S ^*in the interior movement of paper-feeding channel 205.As file S ^*during by scanning window 214,211 couples of file S of scan module ^*scan.

Next refer to Fig. 9 and Fig. 9 A, it swings the structural representation of module for the second driver module of paper feedback scanning device of the present invention pushes against in the first preferred embodiment.After getting the paper work of getting of paper arm 203 and the paper feed end-of-job of a plurality of paper feed roller set 206, and when user's wish utilizes platform type scanner 21 to carry out the scanning of file, the first driving element 2211 decommissions, and the second driving element 2241 reverses and rotates toward the first direction of rotation C1, the second driven wheel 2242 is driven and rotates toward the first direction of rotation C1, and it also drives the second transmission gear 2243 to rotate toward the second direction of rotation C2, simultaneously, the second rotation axis 2244 is synchronizeed and is rotated toward the second direction of rotation C2 with the second transmission gear 2243, and drive the second flexible member 2245 pushing and pressing displacement projections 2231, displacement projection 2231 is moved.Next, the displacement projection 2231 pushing and pressing reinforcing posts 2232 that are moved, the sliding tray 2232B of reinforcing post 2232 is moved with respect to slide rail 218, and reinforcing post 2232 contacts with planetary gear module 222, wherein the second planetary gear 2224 engagements of a plurality of broached-tooth design 2232A of reinforcing post 2232 and planetary gear module 222.

After its a plurality of broached-tooth design 2232A and the second planetary gear 2224 engagements, the first driving element 2211 again operates and rotates toward the first direction of rotation C1, in response to the engagement between a plurality of broached-tooth design 2232A and the second planetary gear 2224 and the first driving element 2211, toward the first direction of rotation C1, rotate this first power of exporting, swing arm 2221 is able to swing with respect to the first rotation axis 2213A, and the first end of swing arm 2221 is deviate from the first breach 2251A, wherein the first end of swing arm 2221 pushes against fixed lever 2251 a little, fixed lever 2251 is moved and compress the first flexible member 2252, and first flexible member 2252 accumulation the first elastic forces.After the first end of swing arm 2221 is deviate from the second breach 2251B, because central gear 2222 rotates toward the second direction of rotation C2, therefore the second planetary gear 2224 rotates toward the first direction of rotation C1 accordingly, the direction that swing arm 2221 must scan gear 216 is in the past swung, and the first end of swing arm 2221 continues pushing and pressing fixed lever 2251, fixed lever 2251 is moved and compress further the first flexible member 2252, and the first flexible member 2252 is accumulated the first elastic force further, as shown in Figure 10 and Figure 10 A.

When swing arm 2221 continues to swing toward the direction of scanning gear 216, and when the first planetary gear 2223 on swing arm 2221 closes with scanning gear 216 Nie, the first end of swing arm 2221 moves to the place ahead of the second breach 2251B of fixed lever 2251, and the first end of swing arm 2221 no longer pushes against fixed lever 2251, the first elastic force that the first flexible member 2252 accumulates is discharged and apply and be fixed bar 2251, and fixed lever 2251 resets, simultaneously, reset in response to fixed lever 2251, the first end of the coated swing arm 2221 of its second breach 2251B, make the first end of swing arm 2221 present the state being inserted in the second breach 2251B, and fixedly the first end of swing arm 2221 in the second breach 2251B.

Next, the second driving element 2241 stops operating, and the second driven wheel 2242, the second transmission gear 2243 and the second rotation axis 2244 are all stopped operating, and the second flexible member 2245 stops pushing against displacement projection 2231.Now, the 3rd flexible member 2233 provides the 3rd elastic force to give reinforcing post 2232, and the sliding tray 2232B of reinforcing post 2232 is moved with respect to slide rail 218, and reinforcing post 2232 resets.And the reinforcing post 2232 pushing and pressing displacement projections 2231 that reset reset displacement projection 2231, therefore, a plurality of broached-tooth design 2232A of reinforcing post 2232 no longer mesh with the second planetary gear 2224, as shown in Figure 5.The first power that powershift mechanism 22 provides the first driver module 221 switches to power transmission to platform type scanner 21 by transferring to automatic paper feeder 20, and the scanning work that platform type scanner 21 carries out is same as described above, therefore repeat no more.

In addition, the present invention more provides one second preferred embodiment.Refer to Figure 11, it transmits the structural representation that the first power gives platform type scanner for the powershift mechanism of paper feedback scanning device of the present invention in the second preferred embodiment.In Figure 11, show the paper feed gear 308 of automatic paper feeder (not being shown in figure), scanning gear 316 and the powershift mechanism 32 of platform type scanner (not being shown in figure), powershift mechanism 32 comprises that one first driver module 321, a planet gear module 322, swing module 323, one second driver module 324 and a stuck-module 325.The structure of the planetary gear module 322 in this preferred embodiment, swing module 323 and stuck-module 325 is identical with above-mentioned the first preferred embodiment haply, therefore repeat no more, and in this preferred embodiment, be the structure of the first driver module 321 and the second driver module 324 with above-mentioned the first preferred embodiment difference.

The first driver module 321 comprises one first driving element 3211 and one first driven wheel 3212, the first driving element 3211 provides one first power in order to rotation, the first driven wheel 3212 is connected in the first driving element 3211, this first power that comes from the first driving element 3211 in order to transmission, and the first driven wheel 3212 has one first rotation axis 3212A, in order to be connected with planetary gear module 32.The second driver module 324 comprises one second driving element 3241, one second driven wheel 3242 and one second flexible member 3243.The second driving element 3241 provides this second power in order to rotation, the second driven wheel 3242 is connected in the second driving element 3241, it comes from this second power of the second driving element 3241 in order to transmission, and the second driven wheel 3242 has one second rotation axis 3242A, the second rotation axis 3242A is extended and is formed by the second driven wheel 3242, therefore the second rotation axis 3242A can be synchronizeed with the second driven wheel 3242 rotation.The second flexible member 3243 is sheathed on the second rotation axis 3242A above and contacts with a displacement projection 3231 that swings module 323, in order to because providing one second elastic force to give displacement projection 3231 by the second power, displacement projection 3231 is pushed against and is moved, and mobile displacement projection 3231 pushing and pressing swing a reinforcing post 3232 of module 323, and reinforcing post 3232 is contacted with planetary gear module 322.In this preferred embodiment, the second rotation axis 3242A and the second driven wheel 3242 are one-body molded.

Known according to the structure of above-mentioned the first driver module 321 and the second driver module 324, when the first driving element 3211 is toward one first direction of rotation C1 ^*rotate, and the second driving element 3,241 one second direction of rotation C2 ^*during rotation, planetary gear module 322 swings and meshes with scanning gear 308 toward the direction of scanning gear 308.And when the first driving element 3211 is toward the second direction of rotation C2 ^*rotate, and the second driving element 3,241 second direction of rotation C2 ^*during rotation, planetary gear module 322 swings and meshes with paper feed gear 316 toward the direction of paper feed gear 316.

According to above-mentioned known, paper feedback scanning device of the present invention is provided with two driving elements, it is by powershift mechanism controls power transmission to automatic paper feeder or platform type scanner, when this two driving element rotates toward identical direction of rotation, planetary gear module emerges in stuck-module and swings and mesh with scanning gear toward the direction that scans gear, makes powershift mechanism transmission power to platform type scanner.When this two driving element rotates toward different rotary direction, the direction that planetary gear module emerges in stuck-module and past paper feed gear swings and meshes with paper feed gear, makes powershift mechanism transmission power to automatic paper feeder.Otherwise also in like manner, when this two driving element rotates toward different rotary direction, planetary gear module emerges in stuck-module and swings and mesh with scanning gear toward the direction that scans gear, makes powershift mechanism transmission power to platform type scanner.When this two driving element rotates toward identical direction of rotation, the direction that planetary gear module emerges in stuck-module and past paper feed gear swings and meshes with paper feed gear, makes powershift mechanism transmission power to automatic paper feeder.

Comprehensive speech, paper feedback scanning device of the present invention can utilize the running of two driving elements and provide power to give automatic paper feeder or platform type scanner, compared to prior art, it not only can save the purchase cost of the 3rd driving element, more can save the 3rd the required power cost expending of driving element.Certainly, owing to not needing the 3rd driving element to be set in paper feedback scanning device, it saves the space, place that the 3rd driving element is set, and does not increase the volume of paper feedback scanning device.

The foregoing is only preferred embodiment of the present invention, not in order to limit claim scope of the present invention, therefore all other do not depart from the equivalence change completing under disclosed spirit or modifies, and all should be contained within the scope of the claim of this case.

Claims

1. a paper feedback scanning device, in order to scan a file, is characterized in that, this paper feedback scanning device comprises:

One automatic paper feeder, in order to be fed to this document, this automatic paper feeder has a paper feed gear;

2. paper feedback scanning device as claimed in claim 1, wherein this first driver module also comprises:

3. paper feedback scanning device as claimed in claim 2, wherein this automatic paper feeder also comprises and gets paper arm, one upper cover and at least one paper feed roller set, this is got paper arm and is connected in this paper feed gear, in order to be driven by this first driver module, making this get paper arm is fed to this document and enters this automatic paper feeder or swing with respect to this upper cover, this upper cover is arranged at this top of getting paper arm, and this at least one paper feed roller set is connected in this second driver module, in order to be driven by this second driver module, be fed to this document moves in this automatic paper feeder, this platform type scanner also comprises one scan module, this scan module is connected in this scanning gear, in order to be driven by this first driver module and to make this scan module move and scan this document, when the engagement of this planetary gear module and this paper feed gear, and this first driving element is when rotate toward this first direction of rotation, and this is got paper arm and is fed to this document and enters this automatic paper feeder, when the engagement of this planetary gear module and this paper feed gear, and this first driving element is when rotate toward this second direction of rotation, and this is got paper arm and swings toward the direction of this upper cover, when the engagement of this planetary gear module and this scanning gear, and this first driving element is when rotate toward this first direction of rotation, and this scan module moves and scan this document toward the direction that is away from this scanning gear, and when this planetary gear module and this scanning gear engagement, and this first driving element is when rotate toward this second direction of rotation, and the past direction close to this scanning gear of this scan module moves.

4. paper feedback scanning device as claimed in claim 3, wherein this this get paper arm and also comprise one first power transmission shaft, be connected in this paper feed gear, make this first power can be by this paper feed gear and this first power transmission shaft and transfer to this and get paper arm.

5. paper feedback scanning device as claimed in claim 3, wherein this platform type scanner also comprises:

6. paper feedback scanning device as claimed in claim 2, wherein this planetary gear module comprises:

7. paper feedback scanning device as claimed in claim 1, wherein this planetary gear module comprises:

8. paper feedback scanning device as claimed in claim 7, wherein this powershift mechanism also comprises a stuck-module, is arranged at the adjacent place of this swing arm and contacts with a first end of this swing arm, this stuck-module comprises:

9. paper feedback scanning device as claimed in claim 8, wherein when this first driving element rotates toward this first direction of rotation, and this second driving element is toward when this second direction of rotation is rotated, with respect to this first driver module, the direction toward this scanning gear swings this swing arm, and this first end of this swing arm pushes against this fixed lever and deviates from this first breach; And when this first driving element is toward this second direction of rotation rotation, and when this second driving element rotates toward this second direction of rotation, with respect to this first driver module, the direction toward this paper feed gear swings this swing arm, and this first end of this swing arm pushes against this fixed lever and deviates from this second breach.

10. paper feedback scanning device as claimed in claim 1, wherein this second driver module also comprises:

11. paper feedback scanning devices as claimed in claim 1, wherein this swing module comprises:

12. 1 kinds of paper feedback scanning devices, in order to scan a file, is characterized in that, this paper feedback scanning device comprises:

13. paper feedback scanning devices as claimed in claim 12, wherein this first driver module also comprises one first driven wheel, is connected in this first driving element, comes from this first power of this first driving element in order to transmission; Wherein, when this first driving element rotates toward this first direction of rotation, this first driven wheel rotates toward this first direction of rotation with this first driving element; And when this first driving element rotates toward this second direction of rotation, this first driven wheel rotates toward this second direction of rotation with this first driving element.

14. paper feedback scanning devices as claimed in claim 12, wherein this planetary gear module comprises:

15. paper feedback scanning devices as claimed in claim 14, wherein this powershift mechanism also comprises a stuck-module, is arranged at the adjacent place of this swing arm and contacts with a first end of this swing arm, this stuck-module comprises:

16. paper feedback scanning devices as claimed in claim 12, wherein this second driver module also comprises:

17. paper feedback scanning devices as claimed in claim 12, wherein this swing module comprises: