200902419 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種自動饋紙裝置，尤其是設置有文件尺寸偵測装置 之自動饋紙裝置。 、、 【先前技術】 —般的自動饋紙裝置會與掃描裝置搭配使用，由於A4尺寸之文件 最被廣為使用，因此大部分的自動饋紙裝置之賴W及出减皆專門 。又。十為Μ之尺寸，這樣的情況下則不需要設置文件尺寸偵測裝置。但 右疋可續送Α3文件尺寸之自動饋紙裝置時，除了較大張的A3尺寸之 ^件:，也可將Μ尺寸之文件使用橫向進紙的方式_送、掃描⑷ =疋Α4尺寸的兩倍整）’此種情況則需要設置文件尺寸憤測裝置來 ^掃描之文妓Α4財妓Α3財,，在提妙Μ、糾 6等等尺寸的掃描的情況下也將需要文件尺寸偵測裝置。 台灣專利第588545號公告案提出—種搭配自動鎖紙裝置之文件 、偵測裝置，請參閱第-圖，其為第588545號台灣專利公告之文件 尺寸_裝置搭配自動饋紙裝置之結構示意圖。於自動饋紙裝置之進 紙® 10兩侧各設置有第-導紙器14以及第二導紙器16且第一導乾器 14以及第二導紙器16可移動而彼此接近或遠離，進紙g㈣有放置 讀之置紙面U，其中該第-導紙器14以及第二導紙器16突出於置 紙面1另外定義置紙面13之背面為進紙£ 1〇之底部15，且於進紙 匣10之底部15另設置有一文件尺寸偵測裝置2〇。 200902419 請參間第二圖，其為第测45號台灣專利公告之文件尺寸憤測裝 置之結構示意圖。設置於底部15之文件尺寸偵測裝置2〇包括感應元 件模組30、第一通道33、第广通道35、第三通道37以及複數凸肋42, 且凸肋42 f隨著第—導紙器Η而移動。感應元件模㈣又包括第〆 感應元件組32、第二感應元件組34以及第三感應元件組％，其中第 -感餘件组32由第-感應元件32Α、32β所組成且第—通道^位 於第-感應it件32Α與32Β之間，第二感應^件組％由第二感應元 件34A、34B所組成且第二通道35位於第二感應元件34減她之間， 第三感應元件組36由第三感應元件36A、36B所組成且第三通道37 位於第三感應元件36A與36B之間。 . 當不同尺寸之文件(未標示於圖中)被放置於進紙㈣(如第一圖中 所示)上日H導紙n mx及第二導紙器16會根據文件之尺寸而移 動至使文件可平坦㈣放胁進纟㈣町德置，此時，第—導紙器 Μ-移動’複數凸肋42也會隨其移動，因應文件尺寸μ同，第一 導紙器14之位置不同，複數凸貼— 4 w 凸肋42之位置也隨著不同，再加上複數 凸肋42與複數通道之位置會產4 机你# 双 貧產生複數種情況’而習知文件尺寸偵 置20(如第一圖中所示）是根據凸 、狡 肋4▲疋否進入通道内之複數種 判斷文件之尺寸。 兄來 定義通路狀態之數位訊號五 ~為邏輯1以及斷路狀態之數位訊 輯0並將此定義設定於文件尺 為邏 尺寸判斷裝置20中。當複數凸肋42皆 進入第一通道33、第二通道λ 未 35以及第二通道37内時，也就表示塗 感應元件組32、第二感應元 第〜 、.且34以及第二感應元件組36未 42所阻隔而皆呈現通路狀態， 凸肋 因此文件尺寸判斷裝置2〇則獲得二 位元的之數位訊號，即「Ul 。 一卿 200902419 田第—感應元件組32被凸肋42阻隔而呈現斷路狀態，第二残應 二件組34以及第三感應元件組％未被凸肋42所阻隔而皆呈現通路狀 了文件尺寸判斷裝置20獲得之三個位元之數位訊號為「〇1丨」。以此 類推，共產生8(2的三次方)種情況，故可判斷8種文件尺寸。雖然如 { 1知文件尺寸判斷裝置2〇的結構太過複雜，並且另外需要定義 -個位το之數位訊號代表何種文件尺寸，不僅是結構上複雜，數位電 路系統也太過複雜，實不符合經濟效應。 【發明内容】 s本發明之目的在提供—種具有文件尺寸債測裝置之自動饋紙裝置，特 引疋關於-種具有簡單結構之文件尺寸侧裝置之自動饋紙震置。 於-較佳實施例中’本發明提出一種具有文件尺寸摘測裝置之自動饋紙 裝置’自動饋紙裝置包括—進紐用以放置文件於其上，特徵在於自動饋 氏虞置U文件尺寸細彳裝置，且文件尺寸彳貞測裝置包括： 第一導紙板，包括： 第撞紙片，用以固定文件於進紙E之表面上； 第一齒條，設置於進紙匣之底部；以及 肋片，設置於進紙匣之底部； 第二導紙板，包括： 第二播紙片’用以固定文件於進紙S之表面上；以及 第二齒條，設置於進紐之底部； 第長开v穿孔位於進紙g上，且第一導紙板穿過第一長形穿孔，使得 200902419 第擋紙片位於進紙1£之表面上，且第一齒條及肋片係位於進紙昆之底部； 第二長形穿孔，位於進紙£上，且第二導紙板穿過第二長形穿孔，使得 第二擋紙片位於進紐之表面上，料二齒條係位於峡£之底部； 齒條移動裝置’用以與第-齒條以及第二齒條舊合而使第一以及第二導 紙板分別於第一以及第二長形穿孔中移動；以及 複數感測裝置，設置於進紙g之該底部，每—感測裝置具有—光發射器 以及-光接收器’其中藉由移動第—導紙板使肋片被移動至光發射器與光 接收器之間。 於—較佳實施例中’第—導紙板中之第—擋紙片、第一齒條以及肋片 係一體成型。 車乂佳貫；例中，第二導紙板中之第二擋紙片以及第二齒條係一體 成型。 方、軟佳貫施例中，齒條移動裝置包括一齒輪、一轉盤以及一轉軸。 200902419 實施方式] "”技錢有複雜結構以及數位電_缺失，本發明提^ —種具有 請尺寸細_之_崎置，可_知技術不足之處，請參閱第 一圖其為本發明自動饋紙裝置之結構示意圖。自動饋紙農置100上之進 、碰140中叹置有—文件&寸彳貞測裝置則，進紙£ 140之表面剛上用 以放置文件(未標示於圖中)且文件尺寸偵測裝置⑽設置於進紐_中， 而文件尺寸f貞測裝置11Q包括：第—導紙板⑽、第二導紙板⑽、齒條移 動裝置(未標示於射)以及複數組感測裝置180(未標示於圖中），其中第一 導’.氏板U0包括第—擒紙片咖、第—齒條麗以及肋片（未標示於圖中）， 第-W氏板130包括第二槽紙片13m、第二齒條腺且進紙匿⑽之表面 M01上设置有第_長财孔15()以及第二長型穿孔湖。 第一導紙板120 +之第一擋紙片讀、第一齒條12〇2以及肋片是一體 成型，第二導紙板13Q巾之第二擋紙片讓以及第二齒條13G2亦為一體 成型。第-導紙板12〇穿過第—長型穿孔15〇使得第一擔紙片_位於進 、氏匣140之表面hoi上且第_齒條12〇2及肋片位於進紙厘⑽之底部(未 心不於圖中），第一導紙板13〇穿過第二長型穿孔剩吏得第二播紙片㈣ 位於進紙E 140之表面刚上且第二齒條⑽玲於進艱⑽之底部。 而進紙E 140底部之第一齒條丨加以及第二齒條膽與齒條移動裝置(未 標示於圖帽合，齒條移動裝置可使第—播紙片題以及第二播紙片_ 於進紙E 140上移動以便於放置各種尺寸之文件於進艱14〇上。 凊參閱第四圖’其為本發明較佳實施例中之文件尺寸酬裝置之部分 200902419 結構示意圖。圖中可清楚看出第一導紙板12〇中的第一擋紙片12〇l、第一 齒條1202以及肋片Π03是一體成型’而第一齒條12〇2嚅合於齒條移動裝 置170，齒條移動裝置17〇包括齒輪(未標示於圖中）、轉盤17〇2以及轉軸 1703。第四圖中另有兩組感測裝置分別是第一感測裝置180以及第二感測 裝置18卜其中第一感測裝置180具有第一光發射器18〇1以及第一光接收 器1802且第二感測裝置181具有第二光發射器18U以及第二光接收器 1812。顧名思義，光發射器發射一光束，而與光發射器對應之光接收器則 會接收該光束。 接著說明齒條移動裝置之結構，請參閱第五圖，其為本發明較佳實施 例中之齒條移動裝置之結構示意圖。於進紙匣之底部刚上設置_齒條移 動裝置170’齒條移動裝i 170之齒輪17〇1與第一齒條12〇2以及第二齒條 1302唾合’當使用者推動第一導紙板時，藉由第一齒條12〇2與第二齒條 1302之嚅合使第二導紙板也隨著同步移動。轉盤用以固定齒輪17〇卜 而轉軸1703將齒輪HOI與轉盤1702固定於進紐之底部14〇2使齒條移 動裝置170得以正常運作。 請參閱第六圖，其為本發明較佳實施例之文件尺寸偵測裝置底部視 角之結構不意圖。本較佳實施例提出一種可偵測A3尺寸以及从尺寸 之文件尺寸偵測裝置110,第六圖中，第—導紙板12Q穿過第—長型穿 孔二〇使第-導紙板120中之第_擋紙片_突出於進顚之表面且 鱼齒條1202以及肋片1203位於進紙昆之底部14〇2。第—齒條咖 與齒條1302餐合於齒條移動裝置m，而第—導紙板12()與第二 導紙板的同步移動較控於#條移動裝置⑺。於進紙&底部咖 10 200902419 另設置有兩組感測裝置一第一感測裝置180以及第二感測裝置181，第 一感測裝置180包括第一光發射器1801以及第一光接收器1S02且第二感 測裝置181包括第二光發射器18U以及第二光接收器丨812,而第一感測裝 置180是用以偵測A3尺寸之文件，第二感測裝置181則是用以偵測A4尺 寸之文件。而感測裝置之設置位置係依據被掃描文件之尺寸而定。以偵測 A3尺寸之第一感測裝置丨⑽為例，將第一導紙板12〇以及第二導紙板 (未標示於圖中）間之距離調整至相當於A3尺寸之文件寬度，約297公 厘，而必須將第一感測裝置180設置於第一導紙板12〇之肋片12〇3所 在位置之稍下方處，使肋片12〇3位於第一光發射器18〇1以及第一光 接收器1802之間。依照相同的原則可設置偵測其他尺寸之感測裝置。 接下來說明文件尺寸偵測裝置丨1〇之工作情況，當欲掃描一文件時， 使用者會移動第一導紙板120而使第一導紙板12〇與第二導紙板間之距離 等於該文件之寬度，以便於敎件《於其上，當第-導難120被移動 的同時，第-導紙板12〇中之肋片1203會隨著第一導紙板120㈣而通過 第一感測裝置180之第一光發射器薩與第—光接收器18〇2之間而阻斷 第—光發射器18G1所射出之光束4時，第—緋收器題無法接收到 光束而輪出一A3尺寸訊號’讓文件尺寸偵測裝置11〇得知該文件之尺寸為 何。 、 請參閱第七圖’其為本發明另一較佳實施例之文件尺寸偵測裝置底 部視角之結構示意圖。該較佳實施例中之文件尺寸偵測裝置⑽可辨 =種文件尺寸—A3尺寸、M尺寸以及A5尺寸，因此需要三組感測 表置W是_ A3尺寸之第一感測裝置18〇(包括第一光編 以及第—光接收器職）、偵測A4尺寸之第二感測裝置⑻（包括第二 光發射器_以及第二光接收器⑻取及偵測A5尺寸之第三感測 11 200902419 裝置182(包括第三光發射器1821以及第二光接收器1822)，偵測A3 尺寸的第一感測裝置180之情況已於上段提出，故於此補充說明a4 尺寸以及A5尺寸之情況，當欲設置用以偵測A4尺寸文件之第二感測 裝置181時’將第—導紙板120以及第二導紙板(未標示於圖中）間之距 離調整至相當於A4尺寸之文件寬度，約210公厘，而必須將第二感測 裝置181設置於第—導紙板ι2〇之肋片12〇3所在位置之稍下方處，使 肋片1203位於第二光發射器1811以及第二光接收器丨812之間。第三 感測裝置182亦為同理，將第—導錄12Q以及第三導紙板(未標示於 圖中）間之距離調整至相當於八5尺寸之文件寬度，約148公厘，將第 二感測裝置182設置於第—導紙板12〇之肋片12〇3所在位置之稱下方 處’使肋片1203位於第三光發射器則以及第三光接收器顧之 間’如第七圖所示。 本發明提ίΒ之具有文件尺寸侧裝置之自域紙裝置改善了習知技術 的高度複_結_及數位電路线，本發H於導紙板之底部設置一 肋片’用錄斷光束使光接受ϋ無法接收光束而得知文件之尺和不需要 習知技術的多條通道而只需—條可讓肋片通過的路徑，並可於該路徑上設 置三組以上之感測裝置，以偵測更多不同尺寸之文件而非限定於固定幾種 文件尺寸，可依制者的需求而輕易變域概置之錢位置，提供使用 者更大的賴彈性以及選擇性。另外，本發㈣需要根據哪—光接受器沒 有接收到光束，就可得知欲_之文件尺寸為何，而不需要習知技術那樣 複雜的數位電路分析，由上述各項可知，本發明確實改善了習知技術之複 雜性的缺陷。 以上所述料本發明之較佳實關，並料以限林發明之 專利範圍，因此凡其絲麟本„所揭以㈣下所完成之等效改 12 200902419 變或修飾，均應包含於本案之申請專利範圍内。 13 200902419 【圖式簡單說明】 圖 第-圖係-種習知文件尺寸偵測裝置搭配掃描襄置之 第二圖係-㈣知文件尺寸偵職置之結構示意目。~ 第三圖係本發明自動軌裝置—較佳實施例之結構示意圖。 _意圖。 第四圖係本發明-較佳實關巾之文件尺寸細裝置之部分 第五圖係本發明-較佳實施例中之轉移動裝置之結構示=圖。不 第六圖係本發明-較佳實施例之文件尺寸_裝置底部視角之結構示 第七圖係本發明另-較佳實施例之文件尺寸制裝置底部視角之結構 示意圖。 【主要元件符號說明】 10、140 進紙匣 13、 1401 表面 14、 16 導紙器 15 > 1402 底部 20、110文件尺寸偵測裝置 30感應元件模組 32、 34、36感應元件組200902419 IX. Description of the Invention: [Technical Field] The present invention relates to an automatic paper feeding device, and more particularly to an automatic paper feeding device provided with a document size detecting device. [Previous Technology] The general automatic paper feeding device is used in conjunction with the scanning device. Since the A4 size document is most widely used, most of the automatic paper feeding devices are specialized in the reduction and reduction of the automatic paper feeding device. also. Ten is the size of the cymbal, in which case there is no need to set the file size detection device. However, when the right 疋 can continue the 馈 3 file size automatic paper feeding device, in addition to the larger A3 size of the piece: you can also use the 进 size file to use the horizontal feeding mode _ send, scan (4) = 疋Α 4 size Double the whole) 'In this case, you need to set the file size intrusion device to ^ scan the text 妓Α 4 妓Α 3 ,, in the case of scanning, such as the size of the Μ, 纠 6 and so on will also require the file size Detection device. Taiwan Patent No. 588545 proposes a file and detection device for the automatic paper-locking device, please refer to the figure--, which is the structure of the file size _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The first paper guide 14 and the second paper guide 16 are disposed on both sides of the paper feedr 10 of the automatic paper feeding device, and the first guide 14 and the second paper guide 16 are movable to approach or move away from each other, and the paper feed g (4) There is placed a reading sheet U, wherein the first paper guide 14 and the second paper guide 16 protrude from the paper loading surface 1 and define the back surface of the paper loading surface 13 as the bottom 15 of the paper feeding sheet, and in the paper tray 10 The bottom 15 is additionally provided with a document size detecting device 2〇. 200902419 Please refer to the second picture, which is a schematic diagram of the structure of the file size inversion device of the 45th Taiwan Patent Notice. The document size detecting device 2 disposed on the bottom portion 15 includes an inductive element module 30, a first channel 33, a wide channel 35, a third channel 37, and a plurality of ribs 42, and the rib 42f follows the first paper guide Move and move. The sensing element module (4) further includes a second sensing element group 32, a second sensing element group 34, and a third sensing element group %, wherein the first sensing element group 32 is composed of the first sensing elements 32Α, 32β and the first channel ^ Located between the first sensing element 32 Α and 32 ,, the second sensing element group % is composed of the second sensing elements 34A, 34B and the second channel 35 is located between the second sensing element 34 minus the third sensing element group. 36 is comprised of third inductive elements 36A, 36B and third channel 37 is located between third inductive elements 36A and 36B. When different size documents (not shown in the figure) are placed in the paper feed (4) (as shown in the first figure), the upper H guide paper n mx and the second paper guide 16 are moved to the size of the document so that The file can be flat (4), and the 导 德 四 四 四 四 四 四 四 , , , , , , , 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 复 复 复 复 复 复 复 复 复 复 复Protrusion - 4 w The position of the rib 42 is also different, plus the position of the complex rib 42 and the complex channel will produce 4 machine you #double poor to produce a plurality of cases 'and the conventional file size detection 20 (such as The first figure shows the size of the plurality of judgment files according to the convex and rib ribs 4 ▲ or not. The brother defines the digital signal of the path state, the logical signal 1 and the digital signal 0 of the open state, and sets this definition to the file size as the logical size determining means 20. When the plurality of ribs 42 enter the first channel 33, the second channel λ 35 and the second channel 37, it also represents the sensing element group 32, the second sensing element 〜, and 34 and the second sensing element. The group 36 does not block and exhibits a path state, and the rib thus obtains a two-digit digital signal, that is, "Ul. One Qing 200902419 Tiandi-inductive element group 32 is blocked by the rib 42 In the open state, the second two-component group 34 and the third sensing element group % are not blocked by the ribs 42 and are all in the shape of a channel. The three-bit digital signal obtained by the file size determining device 20 is "〇" 1丨". By analogy, a total of 8 (2 cubics) is generated, so eight file sizes can be determined. Although the structure of the file size judging device 2 is too complicated, and the number of bits required to define the bit τ ο represents the file size, not only is the structure complicated, but the digital circuit system is too complicated. It is economical. SUMMARY OF THE INVENTION The object of the present invention is to provide an automatic paper feeding device having a document size debt measuring device, and an automatic paper feeding device for a document size side device having a simple structure. In the preferred embodiment, the present invention provides an automatic paper feeding device having a document size picking device. The automatic paper feeding device includes an inlet for placing a document thereon, characterized by an automatic feeding U file size. The first device comprises: a first paper guide for fixing the document on the surface of the paper feed E; the first rack is disposed at the bottom of the paper feed cassette; a rib piece disposed at the bottom of the paper feed cassette; the second paper guide board includes: a second paper sheet for fixing the document on the surface of the paper feed S; and a second rack disposed at the bottom of the feed line; The opening v is located on the paper feed g, and the first paper guide passes through the first elongated hole so that the 200902419 first paper piece is located on the surface of the paper feed, and the first rack and the rib are located in the paper feed. a second elongated perforation, located on the paper advancement, and the second paper guide passes through the second elongated perforation such that the second paper flap is located on the surface of the inlet, and the two teeth are located at the bottom of the gorge; Rack moving device 'for use with the first rack and the first The racks are old to move the first and second paper guides in the first and second elongated perforations respectively; and the plurality of sensing devices are disposed at the bottom of the paper feed g, each of the sensing devices having a light emission And the light receiver' wherein the rib is moved between the light emitter and the light receiver by moving the first paper guide. In the preferred embodiment, the first sheet of the first paper guide, the first rack and the rib are integrally formed. In the example, the second paper sheet and the second rack in the second paper guide are integrally formed. In the square and soft embodiment, the rack moving device includes a gear, a turntable and a rotating shaft. 200902419 Implementation] ""Technical money has a complicated structure and digital power_missing, the present invention provides a kind of _ 崎 崎 崎 崎 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The structure of the automatic paper feeding device is invented. The automatic feeding of the paper on the farm 100, the sigh in the 140, the file & inch measuring device, the surface of the paper feeding 140 is just used to place the document (not The document size detecting device (10) is disposed in the inlet _, and the document size f detecting device 11Q includes: a first paper guide (10), a second paper guide (10), and a rack moving device (not labeled And a complex array sensing device 180 (not shown), wherein the first conductive plate U0 includes a first sheet of paper, a first rack, and a rib (not shown), The W plate 130 includes a second grooved sheet 13m, a second rack gland, and a surface M01 of the paper feed (10) is provided with a first long hole 15 () and a second long perforated lake. The first paper guide 120 + The first paper sheet reading, the first rack 12 〇 2 and the ribs are integrally formed, and the second paper guide 13Q is the second paper stop The second rack 13G2 is also integrally formed. The first paper guide 12 passes through the first long perforations 15 such that the first paper sheet _ is located on the surface hoi of the enthalpy 140 and the first rack 12 〇 2 and the ribs are located at the bottom of the paper feed (10) (not in the picture), the first paper guide 13 〇 passes through the second long hole and the second paper sheet (4) is placed on the surface of the paper feed E 140 And the second rack (10) is at the bottom of the difficulty (10). The first rack of the bottom of the paper feed E 140 and the second rack and the rack moving device (not shown in the figure cap, the rack moving device The first paper sheet and the second paper sheet _ can be moved on the paper feed E 140 to facilitate placement of documents of various sizes on the entanglement. 第四 See the fourth figure, which is a preferred embodiment of the present invention. A schematic diagram of the structure of the document size device 200902419. It can be clearly seen that the first paper sheet 12〇1, the first rack 1202 and the rib Π03 of the first paper guide 12〇 are integrally formed and the first rack 12〇2 is coupled to the rack moving device 170, and the rack moving device 17〇 includes gears (not shown in the figure), the turntable 17 〇2 and the rotating shaft 1703. The other two sensing devices in the fourth figure are the first sensing device 180 and the second sensing device 18, respectively, wherein the first sensing device 180 has the first light emitter 18〇1 and The first light receiver 1802 and the second sensing device 181 have a second light emitter 18U and a second light receiver 1812. As the name implies, the light emitter emits a light beam, and the light receiver corresponding to the light emitter receives Next, the structure of the rack moving device will be described. Please refer to the fifth figure, which is a schematic structural view of the rack moving device in the preferred embodiment of the present invention. The rack moving device is just placed on the bottom of the paper feed cassette. 170' rack gears i 170 gears 17〇1 are spouted with the first rack 12〇2 and the second rack 1302' when the user pushes the first paper guide by the first rack 12〇2 The twisting of the second rack 1302 causes the second paper guide to also move synchronously. The turntable is used to fix the gear 17 and the rotary shaft 1703 fixes the gear HOI and the turntable 1702 to the bottom 14 〇 2 of the feed to allow the rack moving device 170 to operate normally. Please refer to the sixth figure, which is not intended to be a structural view of the bottom angle of the document size detecting device according to the preferred embodiment of the present invention. The preferred embodiment provides a file size detecting device 110 capable of detecting the A3 size and the slave size. In the sixth figure, the first paper guide 12Q passes through the first long punched pair to make the first paper guide 120 The _ paper sheet _ protrudes from the surface of the crepe and the fish rack 1202 and the rib 1203 are located at the bottom 14 〇 2 of the paper feed. The first rack and the rack 1302 are combined with the rack moving device m, and the synchronous movement of the first paper guide 12 () and the second paper guide is controlled by the # mobile device (7). In the paper feeding & bottom coffee 10 200902419 there are further provided two sets of sensing devices - a first sensing device 180 and a second sensing device 181, the first sensing device 180 comprises a first light emitter 1801 and a first light receiving The second sensing device 181 includes a second light emitter 18U and a second light receiver 丨812, and the first sensing device 180 is for detecting an A3 size file, and the second sensing device 181 is A file used to detect A4 size. The setting position of the sensing device depends on the size of the scanned document. Taking the first sensing device 丨 (10) of the A3 size as an example, the distance between the first paper guide 12 〇 and the second paper guide (not shown) is adjusted to a file width equivalent to the A3 size, about 297. In the meantime, the first sensing device 180 must be disposed slightly below the position of the ribs 12〇3 of the first paper guide 12, so that the ribs 12〇3 are located at the first light emitter 18〇1 and Between a light receiver 1802. According to the same principle, a sensing device that detects other sizes can be set. Next, the operation of the document size detecting device is described. When a document is to be scanned, the user moves the first paper guide 120 so that the distance between the first paper guide 12 and the second paper guide is equal to the file. The width of the ribs 1203 in the first-guide paper 12 〇 will pass the first sensing device 180 along with the first paper guide 120 (four) while the first guide 120 is moved. When the first light emitter between the first light emitter and the first light receiver 18〇2 blocks the light beam 4 emitted by the first light emitter 18G1, the first receiver cannot receive the light beam and rotates an A3 size. The signal 'allows the file size detecting device 11 to know the size of the file. Please refer to the seventh figure, which is a schematic structural view of a bottom view of a document size detecting device according to another preferred embodiment of the present invention. The file size detecting device (10) in the preferred embodiment can identify the file size - A3 size, M size, and A5 size. Therefore, three sets of sensing devices are required to be the first sensing device 18 of the size A_3. (including the first optical encoder and the first optical receiver), and the second sensing device (8) for detecting the A4 size (including the second optical transmitter _ and the second optical receiver (8) to detect and detect the third size of the A5 Sensing 11 200902419 device 182 (including the third light emitter 1821 and the second light receiver 1822), the case of detecting the A3 size first sensing device 180 has been proposed in the above paragraph, so this supplements the a4 size and A5 In the case of size, when the second sensing device 181 for detecting the A4 size document is to be set, 'the distance between the first paper guide 120 and the second paper guide (not shown) is adjusted to be equivalent to the A4 size. The width of the document is about 210 mm, and the second sensing device 181 must be disposed slightly below the position of the rib 12〇3 of the first paper guide ι2, so that the rib 1203 is located at the second light emitter 1811. And a second photoreceiver 丨 812. The third sensing device 182 is also the same The distance between the first guide 12Q and the third paper guide (not shown in the figure) is adjusted to a file width corresponding to eight size 5, about 148 mm, and the second sensing device 182 is set to the first The position of the rib 1212 of the paper guide 12 is located below the position where the rib 1203 is located between the third light emitter and the third light receiver, as shown in the seventh figure. The self-domain paper device with the document size side device improves the high-level _ junction and digital circuit lines of the prior art, and the present invention provides a rib at the bottom of the paper guide plate to receive the light beam and receive the light beam. Knowing the size of the document and the multiple channels that do not require the prior art, only a path through which the ribs can pass is provided, and more than three sets of sensing devices can be set on the path to detect more differences. The size of the file is not limited to a fixed number of file sizes, and can easily change the position of the money according to the needs of the manufacturer, providing users with greater flexibility and selectivity. In addition, the hair (4) needs to be based on which - If the light receiver does not receive the light beam, it can be known _ The size of the document, without the need for sophisticated digital circuit analysis as is known in the art, it is apparent from the foregoing that the present invention does not improve the complexity of the prior art. It is intended to limit the scope of patents invented by Lin Lin. Therefore, the equivalent of 12, 200902419, which is modified by (4), shall be included in the scope of the patent application of this case. 13 200902419 Description] Figure - Figure - The second file of the conventional file size detection device with the scanning device - (4) The structure of the file size Detective position. ~ The third picture shows the automatic track device of the present invention - Schematic diagram of the structure of the preferred embodiment. The fourth drawing is a part of the document size-smoothing device of the present invention - the preferred embodiment of the invention. The fifth drawing is a structural view of the rotary moving device in the preferred embodiment of the present invention. The sixth embodiment is a schematic view of the bottom view of the document size device of the present invention. [Main component symbol description] 10, 140 Tray 13, 1401 Surface 14, 16 Paper guide 15 > 1402 Bottom 20, 110 file size detection device 30 Inductive component module 32, 34, 36 Inductive component group
32A、32B、34A、34B、36A、36B 33、 35、37 通道 42 凸肋 100自動饋紙裝置 120、130 導紙板 1201、 1301擋紙片 1202、 1302 齒條 1203肋片 150、160長型穿孔 Π0齒條移動裝置 1701 齒輪 1702 轉盤 感應元件 1703 轉軸 180、181、182 感測裝置 1801、 1811、1821 光發射器 1802、 1812' 1822 光接收器 1432A, 32B, 34A, 34B, 36A, 36B 33, 35, 37 Channel 42 rib 100 automatic paper feeding device 120, 130 paper guide 1201, 1301 paper stop 1202, 1302 rack 1203 rib 150, 160 long perforated Π 0 Rack moving device 1701 gear 1702 turntable sensing element 1703 rotating shaft 180, 181, 182 sensing device 1801, 1811, 1821 light emitter 1802, 1812' 1822 light receiver 14