1280224 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種饋紙機構，尤其是一種可防止進 歪斜之饋紙機構。 0 【先前技術】 按，對於早期之電腦使用者而言，掃描器係屬罕有之 週邊設備。早期之掃描器由於價格高昂，操作不易，通 係應用於專f數位影像處理之I作上。然而，隨著數位影 像科技之發展’不少價格健，並易於朗之掃描器^ 市場。在過去數年，它們更成為個人或小型辦公室之電腦 系統中，不可缺少之一部份。 4 j常見之掃描ϋ可以區分解台式與觀式兩大主 ϋ 式是個人工槪:(_中最流行之掃瞒 、紙張‘1=，十就好比一個小型的影印機， 行^胃〜他雜歡物品係放置於平面玻璃上以進 =目田。又’隨著掃描技術之進展，不僅是相片、盒 台式掃描器來掃描，三維之二物 了後科自雜行掃描。 描:紙描器主要編經常 行多頁遠庐搞>、、掃描态之主要特點在於可進 掃瞄器受限於:設::提c作之速度。然而’饋紙式 無法如平台丁裝之文件或相片，也 (Automatic Document 6 1280224 量1280224 IX. Description of the Invention: [Technical Field] The present invention relates to a paper feeding mechanism, and more particularly to a paper feeding mechanism capable of preventing a skew. 0 [Prior Art] Press, for the early computer users, the scanner is a rare peripheral device. Due to the high price and the difficulty of operation, the early scanners were mainly applied to the processing of f-bit digital image processing. However, with the development of digital video technology, many prices are healthy and easy to scan the market. In the past few years, they have become an indispensable part of the personal or small office computer system. 4 j common scans can be decomposed into desktop and view two main styles is personal work: (_ the most popular broom, paper '1 =, ten is like a small photocopier, OK ^ stomach ~ His miscellaneous items are placed on the flat glass to enter the field. In addition, as the scanning technology progresses, not only the photo, the box-top scanner scans, but also the three-dimensional object. The main feature of the paper scanner is that it is often multi-page, and the main feature of the scanning state is that the scanner can be limited to: set:: the speed of the c. However, the paper feeding cannot be installed as a platform. File or photo, also (Automatic Document 6 1280224 volume
Feeder，ADF)，以達到多頁連續掃描之目的，使掃描大 文件變得容易。 請參照第-圖所示，係—典型自動饋紙器内之饋紙機 (Separation Roller) 16*^ 18。其中，進紙们4係趣於分紙輸6之轉動軸16a) 上^進紙滚輪12係設置於進紙们4之_自由端。分 18係固定’並且區分為一進紙部份⑽與一分纸_ 轉-崎之厚度，但小於二 係受到分w 紙件/， …83與_輪：： 設計======錢^之 準的對應㈣於分_輪m 無法精 部分18:^^ ㈣，其前緣係細進:： 7 1280224 自動=氏器内’因此，進紙之歪斜係無法避免。 與分ΐί輪係固定’致使分紙部分18a 所使用之紙件因此’當 應進扞锁 有者改變時，此間隙之大小無法相 f:ed)可能產生進紙困難或是重複進紙(-_1βFeeder, ADF), for multi-page continuous scanning, makes scanning large files easy. Please refer to the figure-picture, the Separation Roller 16*^ 18 in the typical automatic feeder. Among them, the paper feeding 4 is interesting to the rotating shaft 16a of the paper feeding 6) The upper paper feeding roller 12 is disposed at the free end of the paper feeding 4 . The 18-series is fixed 'and is divided into a paper feeding part (10) and a sheet of paper _ turn-saki thickness, but less than the second line is divided into w paper pieces /, ... 83 and _ wheel:: design ====== The correspondence of the money ^ (4) in the minute _ wheel m can not be refined part 18: ^ ^ (four), its leading edge is fine:: 7 1280224 automatic = inside the ', therefore, the skew of the paper feeding can not be avoided. Fixing with the ΐ 轮 wheel system 'causes the paper piece used by the paper separating portion 18a so that when the shackle is changed, the size of the gap cannot be f: ed) may cause paper feeding difficulties or repeated feeding ( -_1β
Wt如何防止進紙歪斜，暨避免重複進紙之問題， 成為虽今饋紙機構之發展中，受到喝目的課題。 【發明内容】 Η拌淮X^之主要目的係提供一種饋紙機構，可以使分紙 的&彳她裝於分紙滾輪上，以防止進紙歪斜之現象 產生。 本發明之另一目的係提供，饋紙機構，可以配合紙 、—之厚度，碰分紙片與分紙滾輪之觸大小，以避免重 複進紙。 本發明提供—__構，包括-軌雜，-分紙 滾輪，-分紙片’-壓力調整單元與一分紙片壓板。其中， 進、·、氏滾輪侧以帶動紙件。分紙滾輪係位於進紙滾輪之下 游處„具有―圓弧狀之分紙部分靠合於分紙滾輪。 壓力調整單元具有-球型麵部。分紙片壓板之背面具有 一凹陷以容納此球型施壓部，而其正面係用以將分紙片壓 合於分紙滾輪表面。此分紙片壓板之正面並具有—v型凹 槽田球型加壓部施壓於分紙片壓板，此V型凹槽係被分 紙滾輪引導，贱其走向平行於分紙錄之轉動軸方向。 同時’此V型凹槽亦壓迫分紙片之分紙部分使之完全貼合 8 1280224 於分紙滾輪表面。 關於本發明之優點與精神可以藉由以下的發明詳述及 所附圖式得到進一步的瞭解。 【實施方式】 請參照第二圖所示，係本發明自動饋紙器（Aut〇maticHow Wt prevents the skew of the paper feed and avoids the problem of repeated paper feeding, which has become the subject of drinking in the development of the paper feeding mechanism. SUMMARY OF THE INVENTION The main purpose of the Η mixed Huai X^ is to provide a paper feeding mechanism that allows the paper to be placed on the separation roller to prevent skewing of the paper feed. Another object of the present invention is to provide a paper feeding mechanism that can match the thickness of the paper and the thickness of the paper and the separation roller to avoid repeated feeding. The present invention provides a structure, including - rail miscellaneous, - separation roller, - separation sheet' - pressure adjustment unit and a separation sheet pressing plate. Among them, the side of the roller, the wheel, and the roller are used to drive the paper. The separation roller is located downstream of the paper feed roller. „The arc-shaped paper separation portion is attached to the separation roller. The pressure adjustment unit has a spherical surface. The back of the separation plate has a depression to accommodate the ball. a pressure applying portion, and a front surface thereof is used for pressing the paper separation sheet to the surface of the separation roller. The front surface of the separation paper pressing plate has a v-shaped grooved ball type pressing portion pressed against the separation plate pressing plate, and the V The groove is guided by the separation roller, and its direction is parallel to the direction of the rotation axis of the separation sheet. At the same time, the V-shaped groove also presses the separation portion of the separation sheet to fit the surface of the separation roller 8 1280224. The advantages and spirit of the present invention can be further understood from the following detailed description of the invention and the accompanying drawings. [Embodiment] Referring to the second figure, the automatic paper feeder of the present invention (Aut〇matic)
Document Feederv ADF) 20—較佳實施例之剖面示意圖。 如圖中所示，此自動饋紙器2〇具有一進紙匣3〇、一饋紙 機構40、一中繼滾輪組5〇與一出紙滾輪組7〇。其中，、進 、、氏匣30係用以承載紙件（未圖示）。饋紙機構係用以帶 動進紙E 30欧紙件逐張饋入自動饋紙器2〇内。中繼滾 ^ 50係位於饋紙機構4〇之下游處，用以將離開饋紙機 ^0之紙件傳送至一讀寫位置6〇，以進行掃描、影印等 、^。出紙滾輪組70係位於中屬袞輪組5〇之下游處，用 =動紙件離開讀寫位置6G，並且將此紙件送出自動饋紙 π令照罘二A圖所示，係第 拍圖。如圖中所示，此饋紙機構4 42二分紙滾輪44、-分紙片45、-®力調整 :，。其中，進紙滾輪42係鄰接於 最上方僅有-44與分㈣之_，術此過分紙· 同時亦請參照第三C圖所示’壓力調整單元47具有一 球型施壓部472、-基座474與-彈性元件476。其中，基 座474上具有-開口 475，使球型施壓部47以 開口仍向上突出基座474,而抵住分紙片壓板46。彈性 讀476係位於球型施壓部472之下方，用以提供作用力 以使球型施壓部472施壓於分紙片壓板46。值得注咅的 是，圖中係以一壓縮彈簣例示本發明之彈性元件侧，而 非謂此彈性元件476必須使用壓縮彈簧。實際上，任何可 經形變，以提供作用力予球型施壓部472之彈性元件權， 均可以應用於本發明之中。 例而言’此凹陷462更可以採用球面之外觀設計以配合球 型施壓部472之外型。 請同時參照第三B圖所示，為了使球型施壓部仍可 以有效的施分紙片壓板46，此分紙片壓板46之背面 (即圖中分紙片壓板46之下表面.)具有一凹陷脱以容納 此球型施壓部472。值得注意的;.，此分紙片壓板46之背 面的凹陷462係呈現-曲面之外觀，並且，此曲面之曲率 係小於球型施壓部462之球面的曲率，以確保球型施壓部 472抵住凹陷462之底部。藉此，可以防止球型施壓部472 對於分紙片壓板46之施力方向產生偏差，進而使球型施壓 部472得以有效施力於分紙片壓板46。又，就一較佳實施 此外，請同時參照第三B圖所示，而在分紙片驗46 之正面（即圖中分紙片壓板46之上表面）具有一 v型凹槽 464以將分紙片45 S合於分紙滾輪44表面。值得注意的 是’圖中之分紙片壓板46係可部分活動地結合於壓力調整 1280224 單π 47,之基座474上，而分紙片45係可部分活動地結合 於分紙片壓板46上。當球型施壓部472施壓於分紙片壓板 46，分紙片壓板46上的V型凹槽464係受到分紙滾輪44 之引導，以使其走向平行於分紙滾輪44之轉動軸方向。同 時’此V型凹槽464亦引導分紙片45之走向，使其分紙部 分452之後緣45a平行於分紙滾輪44之轉動軸方向，以使 分紙片45精準的組裝於分紙滾輪44上。 其次，本發明之壓力調整單元47更具有一間隙調整螺 4 477與一作用力調整螺絲478。其中，間隙調整螺絲心? 係鎖合於基座474上，並且抵住球型施壓部472之末端以 調整球型施壓部472向上突出基座474之距離，藉以決定 分紙片45與分紙滾輪44之間隙大小。同時，亦透過此間 ^^1#, 477 46 474 〇Document Feederv ADF) 20 - A schematic cross-sectional view of a preferred embodiment. As shown in the figure, the automatic paper feeder 2 has a paper cassette 3, a paper feeding mechanism 40, a relay roller unit 5'' and a paper discharge roller unit 7''. Among them, the In, and the 匣 30 are used to carry paper (not shown). The paper feeding mechanism is used to drive the paper feed E 30 paper pieces into the automatic paper feeder 2 逐 one by one. The relay roller ^ 50 is located downstream of the paper feeding mechanism 4 , for conveying the paper material leaving the paper feeder ^0 to a reading and writing position 6 〇 for scanning, photocopying, etc. The paper output roller set 70 is located at the downstream of the middle 衮 wheel set 5〇, leaves the reading and writing position 6G with the moving paper piece, and sends the paper piece to the automatic paper feeding π 照 罘 罘 A A A A , Take a picture. As shown in the figure, the paper feeding mechanism 4 42 divides the paper roller 44, the separation paper 45, and the -® force adjustment:, . Wherein, the paper feed roller 42 is adjacent to the uppermost only -44 and sub-fourth (four), and the excessive paper is also used. Meanwhile, please refer to the third C diagram, the pressure adjusting unit 47 has a spherical pressing portion 472, - a base 474 and an elastic element 476. Here, the base 474 has an opening 475 so that the ball-shaped pressing portion 47 still protrudes upwardly from the base 474 with the opening against the separation sheet pressing plate 46. The elastic reading 476 is located below the ball pressing portion 472 for providing a force to apply the ball pressing portion 472 to the separation sheet pressing plate 46. It is worth noting that the elastic member side of the present invention is exemplified by a compression magazine, and it is not necessary to use a compression spring. In fact, any elastic element that can be deformed to provide a force to the spherical pressing portion 472 can be applied to the present invention. For example, the recess 462 can be designed with a spherical surface to match the shape of the spherical pressing portion 472. Referring to FIG. 3B at the same time, in order to enable the spherical pressing portion to effectively dispense the paper sheet pressing plate 46, the back surface of the separating sheet pressing plate 46 (ie, the lower surface of the separating sheet pressing plate 46 in the drawing) has a depression. The ball type pressing portion 472 is removed. It is noted that the recess 462 on the back side of the sheet-fed sheet 46 exhibits an appearance of a curved surface, and the curvature of the curved surface is smaller than the curvature of the spherical surface of the spherical pressing portion 462 to ensure the spherical pressing portion 472. Against the bottom of the recess 462. Thereby, it is possible to prevent the spherical pressing portion 472 from deviating from the biasing direction of the separation sheet pressing plate 46, and to further effectively apply the spherical pressing portion 472 to the separation sheet pressing plate 46. Moreover, in a preferred embodiment, please refer to FIG. 3B at the same time, and a v-shaped groove 464 is provided on the front side of the separation sheet inspection 46 (ie, the upper surface of the separation sheet pressing plate 46) to divide the separation sheet. 45 S is combined with the surface of the separation roller 44. It is to be noted that the separating sheet pressing plate 46 in the drawing is partially movably coupled to the base 474 of the pressure adjustment 1280224 single π 47, and the separation sheet 45 is partially movably coupled to the separation sheet pressing plate 46. When the ball type pressing portion 472 is pressed against the separation sheet pressing plate 46, the V-shaped groove 464 on the separation sheet pressing plate 46 is guided by the separation roller 44 so as to be oriented parallel to the rotation axis direction of the separation roller 44. At the same time, the V-shaped groove 464 also guides the direction of the separation sheet 45 such that the trailing edge 45a of the separation portion 452 is parallel to the rotation axis direction of the separation roller 44, so that the separation sheet 45 is accurately assembled on the separation roller 44. . Next, the pressure adjusting unit 47 of the present invention further has a gap adjusting screw 4 477 and a force adjusting screw 478. Wherein, the gap adjusting screw core is fastened to the base 474 and abuts against the end of the ball-shaped pressing portion 472 to adjust the distance of the ball-shaped pressing portion 472 to protrude upward from the base 474, thereby determining the separating piece 45 and the dividing piece. The gap size of the paper roller 44. At the same time, it also passes through ^^1#, 477 46 474 〇
此間隙調整螺絲477更具有一衫螺孔479。彈性元 件476係設置於此螺孔錦之内，並且向上抵住球型施壓 4 472作用力调整螺絲梢係螺合於此螺孔479之下部 刀並且向上抵住彈性元件476。因此，透過改變此作用 力調整螺絲478相對應於此中空螺孔479之鎖合深度，即 可調整彈性元件476之變形量，進而調整球型施壓部472 把壓於分紙片壓板46之作用力大小。 此外，為了調整分W 45與分紙滾之隙 ί發明ί提供有一校正片（未圖示）。此校正片之H 疋大於早-張紙件之厚度，則、於兩張紙件 且 可以配合㈣紙件厚度之絲，設林社校正片。在言 1280224 ，分㈣45與分紙滾輪44之間_過程中 ***分紙片45與分紙滾輪44之間，鐘j片 H477帶動分紙片45,以將校正片壓合於== 。二=量間_整螺絲477相對於基座474之鎖:深 二：紙片AS與分紙滾輪心 螺絲477,，其内之間隙調整 Η工孔之下鳊係封閉，而省卻了 ^整，絲之設計。然而’由於省略了作用力調整螺絲本 實知例必須透過適當調整空孔479，之深度以決定彈性 70件476施加於球型施壓部472的作用力大小。 •請參照第五騎示，鍵麵軌機構又—實施例之 示意圖。相較於第三Α圖之實施例，本實施例省卻了間隙 調整螺絲與作用力調整螺絲，而直接在基座474,上製作 向上之凹孔以容納彈性元件476。然而，由於省卻了間隙 调整螺絲與制力調㈣絲，本實施例必須透過適當調整 此凹孔之深度，以決定分紙片45與分紙滾輪44之間隙大 小，以及彈性元件476施加於球型施壓部472的作用力大 小0 綜上所述，本發明所提供之饋紙機構主要有下列優點: 一、 如第三B圖所示，本發明之分紙片壓板46的 背面係設計有一凹陷462，而正面係設計有一 v型凹槽 464。此凹陷462係用以容納球型施壓部472，而此v型凹 槽464係用以引導分紙片45之走向。藉由此分紙片壓板 12 1280224 46之設計，可以使球型施壓部仍有效施力於分紙片 6上，進而使分紙片45精準的定位组裝於分紙滾輪/ 上，以防止進紙歪斜之現象產生。 二、如第三A圖所示’本發明之壓力調整單元 具有間隙調整螺絲477與作用力調整螺絲例之 並 巾，間隙調整螺絲477主要之功能係在於調整分;^、 與分紙滾輪44之間隙的大小。而作用力調整螺絲㈣之功 能則是在前述間隙之大小確定後，進-步調整彈性元件 籲 476之1缩量，以決定分紙片45壓合於分紙滚輪私之作 用力的大小。藉此，本㈣之壓力__可以配合紙 之厚度’調整分紙4與分紙雜之_大小，以及分 輪與紙制之雜力，以聽重複軌之現·生。、 • -以上所述係利用較佳實施鱗細說明本發明，而非限 ' 制本發明之翻’而且熟知此類技藝人士皆能明瞭，適當 贿些微變及難，仍將不失本發明之要義所在，i 不脫離本發明之精神和範圍。 • 【圖式簡單說明】 弟圖係典型自動饋紙器（Automatic Documerrt Feeder，ADF)内之饋紙機構的示意圖。 第二圖係本發明自動饋紙器一較佳實施例之剖面示意 ® ° 第二A圖係第二圖中之饋紙機構的放大剖面示意圖。 ， 第二B圖係第三A圖中之分紙片壓板的放大剖面示意 圖0 13 1280224 - 第三c圖係第二圖中之饋紙機構的***圖。 〜 第四圖係本發明饋紙機構另一實施例之示意圖。 第五圖係本發明饋紙機構又一實施例之示意圖。 【主要元件符號說明】 饋紙機構10, 40 進紙滾輪12, 42 進紙臂14 φ 分紙滾輪16 分紙片18, 45 轉動軸16a 進紙部份18b 分紙部分18a，452 自動饋紙器20 進紙匣30 籲 中繼滾輪組50 出紙滾輪組70 讀寫位置60 分紙滾輪44 分紙片壓板46 凹陷462 V型凹槽464 14 1280224 、 壓力調整單元47 、 球型施壓部472 基座 474, 474’ 彈性元件476 開口 475 間隙調整螺絲477, 477’ 作用力調整螺絲478 • 中空螺孔479 空孔479， 15This gap adjusting screw 477 has a plate screw hole 479. The elastic member 476 is disposed within the screw hole and is pressed upward against the ball type. 4472 The force adjustment screw tip is screwed to the lower portion of the screw hole 479 and is pressed upward against the elastic member 476. Therefore, by changing the force adjustment screw 478 corresponding to the locking depth of the hollow screw hole 479, the deformation amount of the elastic member 476 can be adjusted, and the ball pressing portion 472 can be adjusted to be pressed against the separation sheet pressing plate 46. Force size. Further, in order to adjust the gap between the minute W 45 and the separation roller, the invention provides a correction sheet (not shown). The H 疋 of the calibration sheet is larger than the thickness of the early-sheet paper, and the two sheets of paper can be matched with the silk of the thickness of the paper. Between 1280224, the sub-fourth 45 and the separation roller 44 are inserted between the separation sheet 45 and the separation roller 44, and the clock sheet H477 drives the separation sheet 45 to press the correction sheet to ==. Two = inter-quantity _ lock 477 lock relative to the base 474: deep two: the paper AS and the separation roller core screw 477, the gap between the adjustment of the Η 鳊 鳊 , , , , , , , , , Silk design. However, since the force adjustment screw is omitted, the depth of the hole 479 must be appropriately adjusted to determine the magnitude of the force applied by the elastic member 70 to the spherical pressing portion 472. • Refer to the fifth ride, the key track mechanism, and the schematic of the embodiment. Compared with the third embodiment, the embodiment eliminates the gap adjusting screw and the force adjusting screw, and directly forms an upward recess on the base 474 to accommodate the elastic member 476. However, since the gap adjusting screw and the force adjusting (four) wire are omitted, the embodiment must adjust the depth of the recessed hole to determine the gap between the separating piece 45 and the separating roller 44, and the elastic member 476 is applied to the ball type. The force of the pressing portion 472 is as follows. In summary, the paper feeding mechanism provided by the present invention mainly has the following advantages: 1. As shown in the third B, the back side of the separating sheet pressing plate 46 of the present invention is designed with a depression. 462, while the front side is designed with a v-shaped groove 464. The recess 462 is for accommodating the ball-shaped pressing portion 472 for guiding the direction of the separation sheet 45. By the design of the paper separating plate 12 1280224 46, the ball pressing portion can still effectively apply force to the separating sheet 6, so that the separating piece 45 can be accurately positioned and assembled on the separating roller / to prevent feeding. The phenomenon of skewing occurs. 2. As shown in FIG. 3A, the pressure adjusting unit of the present invention has a gap adjusting screw 477 and a force adjusting screw. The main function of the gap adjusting screw 477 is to adjust the points; ^, and the separating roller 44 The size of the gap. The function of the force adjustment screw (4) is to adjust the amount of the elastic member 476 after the size of the gap is determined to determine the amount of force that the sheet 45 is pressed against the separation roller. Thereby, the pressure of (4) can be adjusted according to the thickness of the paper to adjust the size of the paper 4 and the paper, and the force of the wheel and the paper to listen to the reproduction of the repeating track. The above description is based on a preferred embodiment of the present invention, and is not intended to limit the invention, and it will be apparent to those skilled in the art that the invention may be The essence of the present invention is not deviated from the spirit and scope of the present invention. • [Simple description of the drawing] The drawing is a schematic diagram of the paper feeding mechanism in the Automatic Documert Feeder (ADF). The second drawing is a schematic cross-sectional view of a preferred embodiment of the automatic paper feeder of the present invention. The second embodiment is an enlarged cross-sectional view of the paper feeding mechanism in the second drawing. 2B is an enlarged cross-sectional view of the sheet-fed sheet in the third A diagram. Figure 0 13 1280224 - The third c-graph is an exploded view of the sheet feeding mechanism in the second figure. The fourth figure is a schematic view of another embodiment of the paper feeding mechanism of the present invention. Figure 5 is a schematic view showing still another embodiment of the paper feeding mechanism of the present invention. [Description of main component symbols] Paper feeding mechanism 10, 40 Paper feed roller 12, 42 Paper feed arm 14 φ Paper feed roller 16 Separate paper sheet 18, 45 Rotary shaft 16a Paper feed portion 18b Paper separation portion 18a, 452 Automatic paper feeder 20 Tray 30 Call relay roller set 50 Eject roller set 70 Read and write position 60 Separation roller 44 Separate paper plate 46 Depression 462 V-groove 464 14 1280224, Pressure adjustment unit 47, Ball type pressure part 472 Base 474, 474' Elastic element 476 Opening 475 Gap adjustment screw 477, 477' Force adjustment screw 478 • Hollow screw hole 479 Hole 479, 15