1316472 九、發明說明： 【發明所屬之技術領域】 本案係關於一種分紙機構，尤指一種應用於自動饋紙 ‘裝置（ADF)之分紙機構。 【先前技術】 隨著電子技術的大幅進步，現今辦公室中所有的庶務 .工作都與影印機、傳真機、印表機、掃描器等事務機息息 # 相關，因此這些事務機成為辦公室内不可缺少的資訊設 備。由於眾多的事務機會佔據太大的空間，甚至因為各事 務機的使用率不盡相同，所以通常會造成有些事務機的使 用率低，但仍必須添購以應付不時之需的情況。 為解決這些問題以及符合現今資訊產品朝向「小型化」 及「功能整合」方向發展的趨勢，兼具影印、列印、傳真 及掃描等功能的多功能事務機（Multi Function Peripheral, MFP)於是被發展出來，消費者只需購買一台多功能事務 • 機便可執行多項庶務工作，並且減少工作環境中空間的佔 用和提昇工作品質及效率，其在應用上及生活上甚具便利 性。 然而不論是單功能事務機或多功能事務機，都會設置 饋紙裝置與分紙機構以將疊置於供紙盤上的紙張（例如原 稿）傳送至事務機内的影像處理機構進行傳真、列印或掃描 等處理。目前的饋紙以及分紙的方式，係利用分紙滾輪與 分紙墊之間的摩擦力，以及分紙墊基座下彈簧所提供的正 向力，來使得饋紙時可將紙張一張張的送入，避免發生卡 1316472 紙或多重饋紙的情形。 請參閱第一圖，其係為傳統之分紙機構之不意圖。如 第一圖所示，傳統之分紙機構1係由分紙滚輪11、分紙墊 12、彈簧13、調整元件14以及驅動馬達15所組成。其中， 分紙滾輪11經由另一驅動裝置（未圖示）所驅動，分紙墊12 的其中一部分與分紙滾輪11相接觸（也就是紙張進入的地 方），而分紙墊12的下方則與彈簧13的上端相接，彈簧13 的另一端設於調整元件14上，而調整元件14則由驅動馬 達15來帶動。由於，彈簧13可提供分紙墊12向上的正向 力，當饋紙裝置啟動之後，分紙滾輪11會受到驅動而開始 轉動，此時位於最上端的紙張會首先被帶入，藉由分紙滾 輪11與分紙墊12之間所產生的摩擦力，便可使得位於第 二的紙張被擋在分紙滾輪11之外，而不會與最上端的紙張 一起被帶入。雖然，如此的設計可以確實的避免紙張重複 被帶入，然而，卻使得分紙墊12與分紙滾輪11之間的摩 耗過大，系統所承受的負載亦使得驅動馬達15的耗損扭力 過大，造成裝置的使用壽命縮短。 為了改善以上所述之諸多缺失，實有必要研發一種可 減少摩擦耗損、設計精簡又能夠達到確實分紙之分紙機構。 【發明内容】 本案之主要目的在於提供一種分紙機構，其係可藉由 調整裝置所提供的抗拒扭力來降低分紙滾輪組之進紙扭 力，驅動馬達之驅動力必須克服抗拒扭力後，才得以進行 饋紙。如此以降低分紙滾輪組與分紙墊之間的摩擦作用， 6 1316472 延長分紙滾輪組與分紙墊的使用壽命。 為達上述目的，本案係提供一種分紙機構，其係包含 分紙滾輪組、齒輪組以及調整裝置。其中分紙滾輪組係經 由驅動馬達驅動，齒輪組係設於分紙滾輪組之一侧，而調 整裝置設於齒輪組之一側並提供抗拒扭力。藉以，當驅動 馬達驅動分紙滾輪組直至驅動馬達所提供之驅動力克服抗 拒扭力時，分紙滾輪組才得以帶動紙張朝出紙方向移動。 根據本案上述之構想，其中分紙滾輪組更包含第一滾 輪以及弟—滾輪。 根據本案上述之構想，其中齒輪組更包含第一齒輪、 第二齒輪以及第三齒輪。 根據本案上述之構想，其中第一齒輪係設於第一滾輪 之一端，第三齒輪設於第二滾輪之一端，而第二齒輪則與 第一齒輪及第三齒輪相互齒合於兩者之間。 根據本案上述之構想，其中驅動馬達驅動分紙滚輪組 之驅動力未克服該抗拒扭力時，該分紙滾輪組係向下旋轉 直至分紙滾輪組之一端觸壓至紙張。 根據本案上述之構想，其中更包含凸軸，其係設於分 紙滾輪組之側壁，以容置調整裝置。 根據本案上述之構想，其中調整裝置更包含彈性元 件、摩擦盤以及摩擦片。 根據本案上述之構想，其中該彈性元件係為彈簣。 根據本案上述之構想，係可應用於傳真機、影印機、 掃描裝置或多功能事務機之饋紙裝置。 7 1316472 本案進一步提供一種分紙機構，其係包含分紙滾輪 組、齒輪組以及調整裝置，其中分紙滚輪組又包含第一滾 輪以及第二滾輪，第一滾輪係經由驅動馬達驅動而得以進 行滾動，而齒輪組更包含第一齒輪、第二齒輪及第三齒輪， 其中第一齒輪設於第一滾輪之一端，第三齒輪設於第二滚 輪之一端，而第二齒輪則分別與第一齒輪及第三齒輪相互 齒合，而調整裝置係設於第二齒輪之一端並提供抗拒扭 力。藉以，當驅動馬達驅動第一滾輪直至驅動馬達所提供 之驅動力克服抗拒扭力時，第一齒輪才得以帶動第二齒 輪，進而使第三齒輪驅動第二滾輪與第一滾輪往同一方向 滾動。 根據本案上述之構想，其中驅動馬達驅動第一滾輪之 驅動力未克服抗拒扭力時，分紙滾輪組係向下旋轉直至第 二滾輪觸壓至紙張。 根據本案上述之構想，其中驅動馬達驅動第一滾輪之 驅動力克服該抗拒扭力後，該第一齒輪係帶動第二齒輪進 而驅動第三齒輪轉動，致使第二滾輪將紙張帶入。 【實施方式】 本案係關於一種分紙機構，其係用以解決分紙機構之 分紙墊與分紙滾輪之間摩耗過大的問題，進而增長分紙機 構之使用壽命。本案之分紙機構係可廣泛地應用於例如傳 真機、影印機、掃描裝置或多功能事務機等所具有之饋紙 裝置。 請參閱第二圖，其係為本案之第一較佳實施例之示意 8 1316472 圖。如圖所示，其中，本案所提供之分紙機構2包含分紙 滾輪組21、齒輪組22以及調整裝置23，其中分紙滾輪組 21又包含第一滾輪211以及第二滾輪212，第一滾輪211 係經由驅動馬達驅動（未圖示）傳動軸24而得以進行滾動， 而齒輪組22更包含第一齒輪221、第二齒輪222及第三齒 輪223，其中第一齒輪221設於第一滾輪211之一端，第 三齒輪223設於第二滾輪212之一端，而第二齒輪222則 分別與第一齒輪221及第三齒輪223相互齒合，以當第一 齒輪221轉動時，得以透過第二齒輪222來帶動第三齒輪 223進行轉動，此外，調整裝置23係設於第二齒輪222之 一端，並提供抗拒扭力。當驅動馬達驅動第一滾輪211而 使得第一齒輪221與第一滾輪211同步進行轉動時，由於 調整裝置23提供了抗拒扭力，使得第二齒輪222與第三齒 輪223無法受到足夠的扭力而轉動，此時，整個分紙滾輪 組21便會向下旋轉，而使第二滾輪212向下壓觸到紙張（未 圖示），直至驅動馬達所提供之驅動力克服抗拒扭力時，第 一齒輪221才會有足夠的扭力來帶動第二齒輪222進行旋 轉，進而使得與第二齒輪222相齒合的第三齒動223受到 旋轉扭力作用，而帶動第二滾輪212進行與第一滾輪211 同一方向的滾動，以將位於最上端的紙張得以被第二滾輪 212輕鬆的帶入饋紙裝置中。當饋紙需求消失的時候，本 案之驅動馬達係提供反轉的驅動扭力，使得整個分紙滚輪 組21會受到反向的旋轉扭力而向上旋轉，第二滾輪212也 就會向上抬起而離開紙張表面，停止傳送紙張。 9 1316472 請參閱第三圖，其係為本案調整裝置之實施例之示意 圖。如圖所不’於實施例中’本案之分紙機構所包含之調 整裝置23係可由彈性元件231、摩擦盤232以及摩擦片233 所組成，而組裝的方式係可設置凸轴25於分紙滾輪組之側 壁213，並分別將彈性元件231(例如彈簧）、摩擦盤232以 及摩擦片233依序套入凸軸25中，最後再將第二齒輪222 固定在凸轴25的末端，以利用彈性元件231所提供的正向 力，促使摩擦盤232施力於摩擦片233上，以提供適當的 抗拒扭力（也就是摩擦扭力）。當然，經由以上的介紹後， 熟知本技術領域的人士都想的到，本案的調整裝置23還可 以有其他不同種類的變化，例如彈性元件231、摩擦盤232 以及摩擦片233之間的相對位置、數量或是種類等等，甚 至是凸軸25的位置及形狀或材質等都可因應分紙機構的 設計而有所變化，並不限定於第三圖所示之實施例而已。 當然，於本案的實施例中，齒輪組的位置及數量並無 限定，而調整裝置的數量亦可隨著需求而增加，且不限定 只能設置於第二齒輪上，舉例來說，第三齒輪之一端或是 另一端等等皆可加設調整裝置，如此的應用亦可符合本案 之技術内容。 綜上所述，本案所提供之分紙機構係利用調整裝置所 提供的抗拒扭力減小分紙滾輪組之進紙扭力，使得分紙滾 輪組之第一滾輪受到驅動馬達的驅動後，會先使得分紙滾 輪組向下旋轉而讓第二滾輪向下壓觸紙張，當驅動馬達所 提供的扭力突破調整裝置所提供之抗拒扭力後，分紙滚輪 10 1316472 組才會受到齒輪組之第一齒輪、第二齒輪以及第三齒輪的 相互作用而開始進行饋紙。如此的設計將可降低分紙滾輪 組與分紙墊之間的摩擦作用，使得分紙滚輪組與分紙墊之 間的摩耗減少，以延長分紙滾輪組與分紙墊的使用壽命。 是以，本發明確已符合發明專利之要件，爰依法提出 專利申請。惟，以上所述僅為本發明之較佳實施例，舉凡 熟悉本案技藝之人士援依本發明之創作精神所作之等效修 飾或變化，皆應涵蓋在本案所載之申請專利範圍内。 1316472 圖式簡單說明】 第一圖：其係為傳統之分紙機構之示意圖。 第二圖：其係為本案之第一較佳實施例之示意圖 第三圖：其係為本案調整裝置之實施例之示意圖 【主要元件符號說明】 1分紙機構 11分紙滾輪 12分紙墊 13彈簧 14調整元件 15驅動馬達 2分紙機構 21分紙滾輪組 22齒輪組 23調整裝置 24傳動軸 25凸軸 211第一滚輪 212第二滚輪 221第一齒輪 222第二齒輪 223第三齒輪 231彈性元件 232摩擦盤 233摩擦片 1?1316472 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a paper separation mechanism, and more particularly to a paper separation mechanism applied to an automatic paper feeding device (ADF). [Prior Art] With the great advancement of electronic technology, all the tasks in the office today are related to the photocopiers, fax machines, printers, scanners, etc., so these machines become unavailable in the office. Missing information device. Because many transaction opportunities take up too much space, and even because the usage rate of each transaction machine is different, it usually causes some transaction machines to be used at a low rate, but it must still be purchased to cope with unexpected situations. In order to solve these problems and to meet the trend of the current information products in the direction of "miniaturization" and "functional integration", the Multi Function Peripheral (MFP), which has the functions of photocopying, printing, faxing and scanning, was With the development, consumers only need to purchase a multi-functional transaction machine to perform a number of tasks, and reduce the occupation of space in the work environment and improve the quality and efficiency of work, which is convenient in application and life. However, whether it is a single-function transaction machine or a multi-function printer, a paper feeding device and a paper separation mechanism are provided to transfer paper (such as an original) stacked on the paper feed tray to an image processing mechanism in the transaction machine for faxing and printing. Or processing such as scanning. The current method of paper feeding and paper separation is to use the friction between the separation roller and the separation pad and the positive force provided by the spring under the base of the separation pad to make a sheet of paper. Feeding of sheets to avoid the occurrence of card 1364772 paper or multiple sheets. Please refer to the first figure, which is not intended to be a traditional paper separation mechanism. As shown in the first figure, the conventional paper separating mechanism 1 is composed of a paper separating roller 11, a paper separating pad 12, a spring 13, an adjusting member 14, and a driving motor 15. Wherein, the separation roller 11 is driven by another driving device (not shown), and a part of the separation pad 12 is in contact with the separation roller 11 (that is, where the paper enters), and below the separation pad 12 Adjacent to the upper end of the spring 13, the other end of the spring 13 is disposed on the adjustment member 14, and the adjustment member 14 is driven by the drive motor 15. Since the spring 13 can provide the upward force of the separation pad 12, after the paper feeding device is activated, the separation roller 11 is driven to start rotating, and the paper at the uppermost end is first brought in by the paper separation. The friction generated between the roller 11 and the separation pad 12 allows the second sheet to be held outside the separation roller 11 without being carried with the uppermost sheet. Although such a design can surely prevent the paper from being repeatedly brought in, the wear between the paper separation pad 12 and the paper separation roller 11 is excessively large, and the load on the system also causes the wear and tear of the drive motor 15 to be excessively large, resulting in The life of the device is shortened. In order to improve the many of the above-mentioned shortcomings, it is necessary to develop a paper separation mechanism that can reduce frictional wear and reduce the design and achieve accurate paper separation. SUMMARY OF THE INVENTION The main object of the present invention is to provide a paper separation mechanism which can reduce the paper feeding torque of the paper separation roller group by the anti-torsion force provided by the adjusting device, and the driving force of the driving motor must overcome the resistance to the torque. It is possible to feed paper. In this way, the friction between the separation roller set and the separation pad is reduced, and 6 1316472 extends the service life of the separation roller set and the separation pad. In order to achieve the above object, the present invention provides a paper separation mechanism including a separation roller set, a gear set, and an adjustment device. The separation roller set is driven by a drive motor, the gear set is disposed on one side of the separation roller set, and the adjustment device is disposed on one side of the gear set and provides resistance to torsion. Therefore, when the driving motor drives the separation roller group until the driving force provided by the driving motor overcomes the resisting torque, the separation roller group can move the paper toward the paper discharge direction. According to the above concept of the present invention, the separation roller set further includes a first roller and a wheel-wheel. According to the above concept of the present invention, the gear set further includes a first gear, a second gear, and a third gear. According to the above concept, the first gear is disposed at one end of the first roller, the third gear is disposed at one end of the second roller, and the second gear is coupled to the first gear and the third gear. between. According to the above concept of the present invention, when the driving force of the driving motor driving the separation roller group does not overcome the resisting torque, the separation roller group rotates downward until one end of the separation roller group is pressed to the paper. According to the above concept of the present invention, a convex shaft is further included, which is disposed on a side wall of the separation roller set to accommodate the adjusting device. According to the above concept of the present invention, the adjusting device further comprises an elastic member, a friction disc and a friction plate. According to the above concept of the present invention, the elastic member is a magazine. According to the above concept of the present invention, it can be applied to a paper feeding device of a facsimile machine, a photocopying machine, a scanning device or a multifunction printer. 7 1316472 The present invention further provides a paper separation mechanism, which comprises a separation roller set, a gear set and an adjustment device, wherein the separation roller set further comprises a first roller and a second roller, and the first roller is driven by a drive motor. Rolling, and the gear set further includes a first gear, a second gear and a third gear, wherein the first gear is disposed at one end of the first roller, the third gear is disposed at one end of the second roller, and the second gear is respectively A gear and a third gear are coupled to each other, and the adjusting device is disposed at one end of the second gear and provides a resisting torque. Therefore, when the driving motor drives the first roller until the driving force provided by the driving motor overcomes the resisting torque, the first gear can drive the second gear, and the third gear drives the second roller to roll in the same direction as the first roller. According to the above concept of the present invention, when the driving force of the driving motor to drive the first roller does not overcome the resisting torque, the separating roller group rotates downward until the second roller is pressed against the paper. According to the above concept, in the case where the driving force of the driving motor drives the first roller overcomes the resisting torque, the first gear train drives the second gear to drive the third gear to rotate, so that the second roller carries the paper. [Embodiment] This is a paper separation mechanism for solving the problem of excessive wear between the separation pad and the separation roller of the separation mechanism, thereby increasing the service life of the separation mechanism. The paper separation mechanism of the present invention can be widely applied to a paper feeding device such as a facsimile machine, a photocopier, a scanning device, or a multifunction printer. Please refer to the second figure, which is a schematic diagram of the first preferred embodiment of the present invention, 8 1316472. As shown in the figure, the paper separation mechanism 2 provided in the present invention comprises a separation roller set 21, a gear set 22 and an adjustment device 23, wherein the separation roller set 21 further comprises a first roller 211 and a second roller 212, first The roller 211 is driven by a drive motor (not shown) to drive the shaft 24, and the gear set 22 further includes a first gear 221, a second gear 222, and a third gear 223, wherein the first gear 221 is disposed at the first One end of the roller 211, the third gear 223 is disposed at one end of the second roller 212, and the second gear 222 is coupled with the first gear 221 and the third gear 223, respectively, to be transmitted when the first gear 221 is rotated. The second gear 222 drives the third gear 223 to rotate. Further, the adjusting device 23 is disposed at one end of the second gear 222 and provides a resisting torque. When the driving motor drives the first roller 211 to rotate the first gear 221 in synchronization with the first roller 211, since the adjusting device 23 provides the resisting torque, the second gear 222 and the third gear 223 cannot be rotated by sufficient torque. At this time, the entire separation roller group 21 will rotate downward, and the second roller 212 will be pressed down to the paper (not shown) until the driving force provided by the driving motor overcomes the resisting torque, the first gear 221 will have sufficient torque to drive the second gear 222 to rotate, so that the third tooth motion 223 that is engaged with the second gear 222 is subjected to the rotating torque, and the second roller 212 is driven to be the same as the first roller 211. The scrolling of the direction is such that the paper at the uppermost end can be easily brought into the sheet feeding device by the second roller 212. When the paper feeding demand disappears, the drive motor of the present case provides reverse driving torque, so that the entire paper separation roller group 21 is rotated upward by the reverse rotational torque, and the second roller 212 is also lifted up and left. Stop the paper on the surface of the paper. 9 1316472 Please refer to the third figure, which is a schematic diagram of an embodiment of the adjusting device of the present invention. As shown in the figure, the adjusting device 23 included in the paper separating mechanism of the present invention may be composed of the elastic member 231, the friction plate 232, and the friction plate 233, and the assembling manner may be to provide the protruding shaft 25 for dividing the paper. The side wall 213 of the roller set and the elastic member 231 (for example, a spring), the friction disc 232 and the friction plate 233 are sequentially inserted into the protruding shaft 25, and finally the second gear 222 is fixed at the end of the protruding shaft 25 to utilize The positive force provided by the resilient member 231 causes the friction disc 232 to apply a force on the friction plate 233 to provide a suitable resistance to torsion (i.e., frictional torque). Of course, after the above introduction, it is well understood by those skilled in the art that the adjustment device 23 of the present invention can also have other kinds of changes, such as the relative position between the elastic member 231, the friction disk 232, and the friction plate 233. The number, the type, and the like, and even the position and shape or the material of the convex shaft 25 may vary depending on the design of the paper separation mechanism, and are not limited to the embodiment shown in the third figure. Of course, in the embodiment of the present invention, the position and number of the gear set are not limited, and the number of adjusting devices may also increase according to requirements, and is not limited to being disposed only on the second gear, for example, the third. An adjustment device can be added to one end of the gear or the other end, and such an application can also conform to the technical content of the present case. In summary, the paper separating mechanism provided by the present invention reduces the paper feeding torque of the paper separation roller group by using the resisting torque provided by the adjusting device, so that the first roller of the paper separating roller group is driven by the driving motor, The paper roller group is rotated downward to make the second roller press down the paper. When the torque provided by the driving motor breaks through the resistance provided by the adjusting device, the paper roller 10 1316472 group is first received by the gear set. The paper feed is started by the interaction of the gear, the second gear, and the third gear. Such a design can reduce the friction between the separation roller group and the separation pad, so that the friction between the separation roller set and the separation pad is reduced to extend the service life of the separation roller set and the separation pad. Therefore, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art to the spirit of the present invention should be included in the scope of the patent application contained in the present application. 1316472 Simple description of the diagram] The first picture: it is a schematic diagram of the traditional paper separation mechanism. The second drawing is a schematic view of the first preferred embodiment of the present invention: it is a schematic diagram of an embodiment of the adjusting device of the present invention. [Main component symbol description] 1 paper separating mechanism 11 paper roller 12 paper pad 13 spring 14 adjustment element 15 drive motor 2 paper separation mechanism 21 separation roller set 22 gear set 23 adjustment device 24 transmission shaft 25 convex shaft 211 first roller 212 second roller 221 first gear 222 second gear 223 third gear 231 The elastic member 232 rubs the disc 233 with the friction plate 1?