TW528715B - Document feeding system - Google Patents

Abstract

A document feeding system is disclosed in this present invention. The document feeding system according to this invention can improve the document transmission by employing a carry device with a multiple rotating speed, and thus the mistakes during the document transmission, such as terminating the document transmission, destroying the document, or the like mistakes, can be prevented by the above-mentioned document feeding system. Moreover, because the disposition of the elements in the document feeding system is not necessary through an accurate calculation, the manufacture of the above-mentioned document feeding system is simpler than the manufacture of the document feeding system in the prior art. Hence, this invention can not only improve the efficiency of a document transmission, but also simplify the manufacture of a document feeding system.

Description

528715 V. Description of the invention (1) 5-1 Field of invention: The present invention relates to a file feed system, and more particularly to a file feed system with multiple speeds. 5-2 Background of the Invention:

The document feeding system is a very convenient and important auxiliary tool for inputting documents into the camera device. The document feeding system can output the documents to the camera device one by one through the function of the complex array wheel for image capture. Especially when capturing images on a large number of documents, the document feeding system can save a lot of manpower and time costs.

In the conventional art, the document feeding system includes at least one set of first wheels for collecting documents, and a set of second wheels for transferring files forward. In the conventional document feeding system, in order to avoid the abnormal stopping of the two sets of rollers during the document transmission process, between the first group of rollers and the gears they drive, and between the first group of rollers and The configuration relationship between the second set of rollers must be accurately calculated. For example, if the document feeding system of the conventional technology is not accurately calculated in the settings, the possible result is that when the front end of a document passes the second wheel described above and the back end of the document is not When passing the first wheel, there may be a difference in the file feed system due to the drag of the file to the first wheel.

Page 5 528715 V. Description of Invention (2) Often stopped. In other words, in the above-mentioned conventional file feeding system, the component settings of each file feeding system must be accurately calculated to effectively avoid errors during file transfer. However, for the assembly of the document feed system, the above calculation for each meta-yak setup is not a cumbersome process. Therefore, in order to improve the efficiency of the file feed system, how to provide an effective stop that can prevent abnormal stoppages without having to first calculate the settings of each component, the structure of the file feed system is an important issue. . 5-3 Objects and Summary of the Invention: In view of the many shortcomings of the conventional art in the document feeding system in the above background of the invention, the main object of the present invention is to provide a document feeding system. The above-mentioned file feeding system includes at least one transmission device with multiple rotation speeds to prevent the file feeding system from malfunctioning during file transmission. Another object of the present invention is that the present invention can simplify the process of document feeding system. The components of the above-mentioned file feed system can be set without going through

528715 V. Description of the invention (3) Precise calculation can avoid errors that occur in the file transfer process of the conventional technology, and simplify the process of file feeding into the system. Yet another object of the present invention is that the present invention can provide a file feeding system. The above-mentioned file feeding system can make the file transmission smoother and improve the efficiency of the file feeding system. According to the above-mentioned object, the present invention provides a document feeding system. The above document feeding system includes at least a first transmission device and a second transmission device. The first transmission device includes a first roller, a transmission element, and a coupling element. The above-mentioned transmission element keeps rotating at a first speed during the file transfer. The coupling element is used to connect the transmission element and the first roller. The transmission element has a groove, and a convex portion of the coupling element is installed in the groove, so that the transmission element can drive the first roller through the handle element. When the front end of the document enters the second transmission device, one of the second rollers in the second transmission device will forward the document at a second speed. At this time, since the above groove on the transmission element can provide a buffer space for the coupling element, even if the rear end of the document has not left the first roller, the first roller will not be because the front end of the document comes from the second roller. The pulling force causes the file transfer to stop abnormally or the file to be damaged. Therefore, the file feed system according to the present invention can effectively improve the reliability of the file transfer process and prevent the file feed system from errors during the file transfer process. In addition, since the arrangement of each element in the system according to the document feeding system of the present invention does not need to be particularly sophisticated

528715 V. Description of the invention (4) Therefore, the present invention can also simplify the process of document feeding system. 5-4 Detailed Description of the Invention: Some embodiments of the present invention will be described in detail as follows. However, in addition to the detailed description, the present invention can also be widely implemented in other embodiments, and the scope of the present invention is not limited, which is subject to the scope of subsequent patents. Moreover, in this specification, different parts of each element are not drawn according to dimensions. Certain dimensions have been exaggerated compared to other related dimensions to provide a clearer description and understanding of the invention. A preferred embodiment of the present invention is a structure of a file feeding system. The document feeding system according to the present invention includes at least a first transmission device and a second transmission device. The first transmission device includes a first roller, a transmission element for driving the first roller to rotate at a first speed, and a handle engaging element for connecting the transmission element and the first roller. The above-mentioned transmission element may be a gear. The aforementioned coupling element may be a unidirectional transmission spring (ο n e-w a y s p r i n g). The transmission element has a trench, the engaging element has a protruding portion, and the protruding portion is disposed in the groove. The transmission process of a file in the above-mentioned file feeding system will be described as follows.

528715 V. Description of the invention (5) First, the above-mentioned first roller and shank engaging element will rotate at the first speed with the above-mentioned transmission element and the above-mentioned document feeding system can extract a File 0 When the front end of the file enters the above-mentioned transmission device, the above-mentioned first roller and event coupling element will rotate at a second speed with the second roller in the second transmission device. The first speed is faster than the first speed. 0 for 1 The first roller and the engaging element will rotate faster than the above-mentioned transmission element, so that the above-mentioned protruding portion will start to ΛΑΑ in the groove above. A first end moves to a second end. 0 Next, the above file will continue to move in the direction of the second transmission device. When the above coupling element When the protruding part reaches the first end of the groove 5, the rotation speed of the handle element will be the same as the above-mentioned transmission element. After the top, bottom, and back of the document leave the first roller, the rotation speed of the first roller and the coupling element will become zero and the protruding portion of the engaging element will start from the end of the groove to the first of the groove. When the protruding part of the engaging element reaches the first end of the groove, the above-mentioned shore engaging element and the first roller will rotate at the first speed again with the above-mentioned transmission element and The above first scroll wheel will start to extract another file. Then the above file feeding system will repeat the above.

Page 9 528715 V. Description of the invention (6) File transfer process. In this embodiment, when the front end of a document enters the second transmission device and the back end of the document is still on the first roller of the first transmission device, the groove in the transmission element may provide a buffer for the coupling element. Space, which can prevent incorrect actions of the first wheel, such as stopping file transfer or corrupting the file. In addition, the setting of each element in the document feeding system according to the present embodiment does not need to undergo accurate calculation. Therefore, the document feeding system according to this embodiment can be assembled more simply than the document feeding system of the conventional art. Another preferred embodiment according to the present invention is a document feeding system. The above document feeding system includes at least a first transmission device and a second transmission device. The first diagram is a schematic diagram of a document feeding system according to the present embodiment. Referring to the first figure, the first transmission k set 1 0 0 includes a bearing 1 2 0, a roller 1 4 0, a coupling element 16 0, and a transmission element 1 80. The above-mentioned bearing 120 is used to carry the roller 140, the coupling element 160, and the transmission element 180. Scroll wheel 1 4 0 can be used to extract files. The transmission element 180 maintains rotation at a first speed during the file transfer. The coupling element 16 0 is used to connect the roller 140 and the transmission element 180. The aforementioned coupling element 160 can be a unidirectional transmission spring. The aforementioned transmission element 180 may be a gear. Figures A through D are side views of the first transmission device according to this embodiment. As shown in the second A diagram, the gear 1 80 includes a groove 1 8 2. m · __ Painting

Page 10 528715 V. Description of the invention (7) The one-way transmission spring 160 includes a protruding portion 165, and the protruding portion 165 is installed in the groove 1 8 2. The length of the groove 1 8 2 is related to the length of the transmitted file. In summary, in this embodiment, the process of transmitting a file from the first transmission device to the second transmission device can be divided into four phases as described below. In the first stage, the transmission element 180, the unidirectional transmission impulse 160, and the roller 1 40 are rotated at a first speed, and the roller 1 4 0 of the first transmission device 100 A file will be extracted. The direction of the above rotation is shown in the direction of the arrow in the figure. In the first stage, the protruding portion 1 65 of the unidirectional transmission spring 160 is located at the first end 1 8 4 of the groove 1 8 2 after the front end of the document reaches the second transmission device, that is, Enter the second stage of file transfer. In the second stage, because the front end of the document is dragged forward by the second transmission device at a second speed, the roller 140 and the one-way transmission spring 160 will rotate at the second speed. When the roller 140 and the one-way transmission spring 160 rotate at the second speed, the speed of the gear 180 remains at the first speed. In other words, in the second stage, the speed of the roller 140 and the one-way transmission spring 160 will be faster than that of the gear 180. Therefore, the protruding portion 1 6 5 of the spring 1 60 will start to move from the first end 1 8 4 in the groove 1 8 2 to the second end 1 8 6 in the groove 1 8 2, such as the second B As shown. Referring to the second figure C, the third stage begins after the protruding portion 16 of the unidirectional transmission spring 160 reaches the second end 1 8 6 in the groove 1 8 2. In the third stage, the speed of the unidirectional transmission impeachment 160 and the speed of the gear 180 are both first.

528715 V. Description of the invention (8) Speed. At this time, the front end of the file has passed through the second transmission device, while the back end of the file is still in the first transmission device. Because the file has not left the wheel 14 0, the speed of the wheel 1 40 is still the second speed. Therefore, in the third stage, the rotation speed of the roller 1 40 is faster than the rotation speed of the unidirectional transmission spring 16 0 and the gear 1 180. After the rear end of the above file leaves the roller 1 40, the file transmission process enters The fourth stage. Because the above file has completely separated from the roller 14 0, until the protruding portion 16 5 of the spring 1 60 returns to the first end 1 8 4 of the groove 1 8 2 as shown in the second D diagram, The speeds of the rollers 140 and 160 are zero. In the fourth stage, the speed of the gear 180 is still maintained at the first speed. That is, in the fourth stage, the speed of the gear 180 is faster than the speed of the impeachment 160 and the wheel 140. In addition, when the protruding portion 16 of the impeachment 160 reaches the first end of the groove 18, the above-mentioned stages, from the first stage to the fourth stage, can be repeatedly performed, and The scroll wheel 1 4 0 fetches another file for the next file transfer. Another embodiment according to the present invention is an S-type file feeding system. The third figure is an S-type document feeding system applied to a camera device according to the present embodiment. The above-mentioned imaging device may be a scanner. Referring to the third figure, the above-mentioned S-type document I selling system includes a paper feeding area 3 1 0, a separated roller 320, a first feeding roller 330, and a first Idler oller 340, one

Page 12 528715 V. Description of the invention (9) The second feed roller 3 5 0, a second idler wheel 3 6 0, and a paper output area 3 7 0. After a document is output from the paper output area 370, the scanner 300 can start scanning the above-mentioned document. In the present embodiment, the design of the first conducting device 100 disclosed in the above may be applied to the separation roller 3 2 0. Therefore, the file transfer from the separation roller 3 2 0 to the first feed roller 3 3 0 can be improved through each of the file transfer stages of the second A-picture to the second D-picture. In another example, the above-mentioned design of the first transmission device 100 can also be applied to the first feeding roller 3 3 0. In another example, the design of the first transmission device 100 can also be applied to the separation roller 3 2 0 and the first feeding roller 3 3 0 at the same time. Therefore, the S-type file feeding system according to this embodiment can not only avoid the disadvantages in the conventional art, but also make the file transmission smoother. According to another embodiment of the present invention, it is a U-shaped file feeding system. The fourth figure is a U-shaped file feeding system applied to a camera device according to this embodiment. The above-mentioned imaging device may be a scanner. Referring to the fourth figure, the above U-shaped document feeding system includes a paper feeding area 4 1 0, a paper picking roller (pick-upr ο 1 1 er) 4 2 0, a separation roller 4 3 0, a first Feed roller 4 4 Ο, a first idler 4 5 Ο, a second feed roller 4 6 Ο, a second idle roller 4 7 0, a third feed roller 4 8 0, and a paper output area 4 9 0. After a document is output from the paper output area, the aforementioned camera device may perform an image capturing step to capture an image in the document. In this embodiment, the design of the first roller 100 disclosed in the above can be applied to paper fetching.

Page 13 528715 V. Description of the Invention At least one set of transmission devices among the roller 4 2 0, the separation roller 4 3 0, the first feed roller 4 4 0, and the second feed roller 4 6 0. In an example, the paper pick-up roller 4 2 0 can apply the design of the first transmission device 1 0 0 described above. In another example, the design of the above-mentioned first transmission device 100 can be applied to the separation roller 430. In another example, the above-mentioned design of the first transmission device 100 can be applied to the pickup roller 4 2 0 and the separation roller 4 3 0 at the same time. In another example, the design of the first transmission device 100 described above may be applied to the first feeding roller 4 4 0 or the second feeding roller 4 6 0. In another example, the above-mentioned design of the first transmission device 100 can be applied to the paper pickup roller 4 2 0, the separation roller 4 3 0, and the first feed roller 4 4 0 at the same time. In another example, the above-mentioned design of the first transfer device 100 can be applied to a paper picking roller 4 2 0, a separating roller 4 3 0, and a first feeding roller 4 4 0 in a U-shaped document feeding system. With the second feed roller 4 6 0. The U-type file feeding system according to this embodiment can prevent the roller from making errors during the file transfer process, such as stopping the transfer, corrupting the file, or other errors. Therefore, the efficiency of the U-shaped document feeding system according to the present embodiment can be improved.

In summary, the present invention discloses a file feed system. In the present invention, the file feeding system includes at least a first transmission device and a second transmission device. The first transmission device includes a roller, a transmission device, and a coupling element for connecting the roller and the transmission device. The above-mentioned coupling element may be a unidirectional transmission spring. The transmission device includes a groove, and the coupling element includes a protruding portion disposed in the groove.

Page 14 528715 V. Description of Invention (11). When a file is transmitted between the roller and the second transmission device, the groove can provide a buffer space, so that the roller can maintain normal operation. Therefore, the file feeding system according to the present invention can effectively prevent errors in conventional techniques from occurring during the file transfer process. In other words, the present invention can effectively improve the efficiency of the document feeding system. Moreover, the settings of the various components of the document feeding system according to the present invention do not need to be accurately calculated. Therefore, the process of the document feeding system according to the present invention can be simpler than the process of the document feeding system of the conventional art. . The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of patent application for the present invention; all other equivalent changes or modifications made without departing from the spirit disclosed by the present invention shall be included in the following Within the scope of patent application.

Page 528 715 illustrates the above-mentioned objects and advantages of the present invention briefly. The following embodiments and diagrams will be used to explain in detail as follows, where: The first diagram is a schematic diagram of a document feeding system according to the present invention; Figures A through D are side views of the transmission device according to the present invention during the file transfer process; Figure 3 is a schematic view of the S-type file feeding system according to the present invention; and Figure 4 is according to the present invention Schematic diagram of a U-shaped file feed system. The main part of the symbol: 100-transmission device 120 bearing 140 roller 16 0 Wei Tianhe 7u pieces (unidirectional transmission spring) 165 protruding part 180 transmission element (gear) 182 groove 184 first end of the groove 186 groove Scanner at the second end of the slot

Page 528715 Simple illustration of the 310 paper feed area 3 2 0 separation roller 3 3 0 first feed roller 3 4 0 first idle roller 3 5 0 second feed roller 3 6 0 second idle roller 3 7 0 Paper output area 4 0 0 Scanner 410 Paper feed area 4 2 0 Paper pickup roller 4 3 0 Separation roller 4 4 0 First feed roller 4 5 0 First idler 4 6 0 Second feed roller 4 7 0 No. 2 idler wheels 4 8 0 3rd feed roller 4 9 0 paper output area

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Claims (1)

528715 VI. Scope of patent application 1. A document feeding system comprising: a roller; a transmission device rotating at a first speed, wherein the transmission device includes a groove; and a coupling element connected to the transmission The device and the roller, wherein the coupling element includes a protruding portion installed in the groove. 2. If the document feeding system of item 1 of the patent application scope further includes a bearing to carry the roller, the transmission, and the coupling element. 3. If the file feeding system of item 1 of the patent application scope, wherein the handle engaging element is a unidirectional transmission spring. 4. If the file feeding system of item 1 of the patent application scope, wherein the transmission device is a gear. 5. If the document feeding system of the first patent application scope further includes a first stage during the transmission of a document, the roller, the transmission device, and the coupling element rotate at the first speed. 6. If the document feeding system of the first patent application scope includes a second stage during the transmission of a document, wherein the roller and the coupling element are faster than the first speed of the transmission device At the second speed. Page 18 528715 6. Patent application scope 7. If the file feeding system of the first patent application scope includes a third stage during the transmission of a file, the roller system is at a faster speed than the first speed. The fast second speed rotates, and the transmission device and the coupling element rotate at the first speed. 8. If the file feeding system of the first patent application scope includes a fourth stage during the transmission of a file, the speed of the roller and the coupling element is zero, and the transmission device uses the first Speed turns. 9. A document I selling system, the document feeding system includes: a roller; a transmission device; and a coupling element connecting the transmission device and the roller; a first stage in a file transmission process, wherein the roller The transmission device and the coupling element rotate at a first speed; a second stage is during the transmission of the file, wherein the roller and the coupling element are at a faster speed than the first speed. The second speed rotates, and the transmission device rotates at the first speed; a third stage is during the transmission of the file, wherein the roller system rotates at the second speed, and the transmission device and the coupling element are at the second speed. First speed rotation; and a fourth stage during the file transmission process, wherein the rotation speed of the roller and the coupling element is zero. Page 19 528715 VI. Scope of patent application 10. The document feeding system of item 9 of the patent application scope, wherein the transmission device includes a groove. 1 1. The document feeding system according to item 10 of the patent application scope, wherein the coupling element includes a protruding portion located in the groove. 12. The document feeding system according to item 9 of the patent application scope, wherein the transmission device is a gear. 1 3. The document feeding system according to item 9 of the patent application scope, wherein the coupling element is a unidirectional transmission spring. 1 4. A document feeding system, the document feeding system comprising: a roller; a gear; and a unidirectional transmission impulse connecting the gear and the roller; a first stage in a file transmission process, wherein the A roller, the gear, and the one-way transmission spring system rotate at a first speed; a second stage during the transmission of the file, wherein the wheel and the one-way transmission spring system are at a speed greater than the first speed A fast second speed rotates, and the gear train rotates at the first speed; a third stage is during the transmission of the file, wherein the roller train rotates at the second speed, and the gear and the unidirectional transmission spring Rotating at the first speed; and Page 20 528715 VI. Scope of patent application A fourth stage is during the transmission of this document, where the rotation speed of the roller and the one-way transmission spring is zero. 15. The document feeding system according to item 14 of the scope of patent application, further comprising a bearing for carrying the roller, the gear, and the one-way transmission spring. 16. The document feeding system according to item 14 of the scope of patent application, wherein the protruding portion is located at a first end in the groove in the first stage. 1 7. The document feeding system according to item 14 of the scope of patent application, wherein in the second stage, the protruding portion is moved from a first end in the trench to a second end in the trench . 1 8. The document feeding system according to item 14 of the scope of patent application, wherein the protruding part is located at a second end of the trench in the third stage. 19. The document feeding system according to item 14 of the scope of patent application, wherein the protruding portion is moved from a second end in the trench to a first end in the trench in the fourth stage. . Page 21