201006755 _ 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種壓紙裝置。 【先如技術】 列印裝置如影印機、傳真機、印表機、掃描器或多功 能一體機（Multi Function Printer, MFP )作為一種高效率之 辦公設備’正曰益獲得廣泛之應用。現有影印機一般包括 一列印單元及一壓紙裝置1〇 (如圖i所示）。該壓紙裝置 10用於存放紙張，該列印單元用於將存放於壓紙裝置1〇 内之紙張進行列印。該壓紙裝置10包括一前蓋U、一壓紙 固定片12、一設置於前蓋n與壓紙固定片12之間之彈性 件13及一用於裝置紙張之後蓋14。該壓紙固定片12之一 端固設於前蓋11之内側壁112上，另一端與彈性件13相 連接。使用時，將紙張放置於後蓋14内，將該前蓋n與201006755 _ IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a paper pressing device. [Technology first] Printing devices such as photocopiers, fax machines, printers, scanners or multi-function printers (MFPs) are widely used as high-efficiency office equipment. Existing photocopiers generally include a printing unit and a paper pressing unit 1 (shown in Figure i). The platen device 10 is for storing paper, and the printing unit is for printing paper stored in the platen device 1A. The platen device 10 includes a front cover U, a platen fixing piece 12, an elastic member 13 disposed between the front cover n and the platen fixing piece 12, and a rear cover 14 for the device paper. One end of the platen fixing piece 12 is fixed to the inner side wall 112 of the front cover 11, and the other end is connected to the elastic member 13. When in use, the paper is placed in the back cover 14, and the front cover n is
後蓋14閉合，此時，壓紙固定片12由彈性件13提供之彈 力壓合紙張。 然而’此壓紙裝置1G利用彈性件13配合壓紙固定片 12做反復式運動壓住紙片，紙張與壓紙固定片以間之接 觸面積大，因此，壓紙裝置料紙至列印單Μ印時，紙 張與壓紙固定片12之摩擦力也較大，容 給用戶帶來不便。 【發明内容】The back cover 14 is closed, at which time the platen fixing piece 12 is pressed by the elastic member 13 to press the paper. However, the paper pressing device 1G uses the elastic member 13 in conjunction with the pressing paper fixing piece 12 to repeatedly press the paper sheet, and the contact area between the paper and the paper pressing fixing piece is large. Therefore, the paper feeding device feeds the paper to the printing single sheet printing. At the same time, the friction between the paper and the platen fixing piece 12 is also large, which is inconvenient for the user. [Summary of the Invention]
有鑒於此，有必要提供一種可避 免卡紙現象之壓紙裝 6 201006755 • …種壓紙裝置’其包括-前蓋及-可與該前蓋相扣合 •之後蓋U包括一内壁。該前蓋可相對後蓋旋轉打開 或扣合。該屢紙裝置進一步包括—麼合元件，該壓合元件 固設於前蓋之内壁上。該壓合元件包括一壓持件及至少一 滾輪。該壓持件包括一固定端及連接於該固定端之一邊且 相對該固定端彈性彎曲之彈性支樓臂。該彈性支樓臂上設 有至少-組固定片。每組固定片上都形成有一組相對應: ❹軸孔，該滾輪穿置於該固定片之轴孔内，並可相對該抽孔 滾動。 相較於先前技術，該壓紙裝置壓紙時，該壓合元件之 滾輪壓持紙張之同時，並可於紙張之帶動下轉動，該滚輪 與紙張之間為滾動摩擦，兩者之間之接觸面積小，因此， 可減小兩者之摩擦力，減小卡紙現象之發生。 【實施方式】 以下將結合附圖對本發明作進一步之詳細說明。 〇 請一併參閱圖2與圖3,本發明實施方式提供之壓紙裝 置20可設置於印表機、影印機、掃描器 [ 些列印裝置内。該壓紙裝置20包括一前蓋21二=件 22、一可與該前蓋21相扣合之後蓋23、一壓合元件μ、 及一鎖合部25。 、忒刖蓋21呈方形狀，其包括一樞轉邊214、一與樞轉 邊214相對設置之旋轉邊215及一内壁212。本實施方式 中，該樞轉邊214上設有二個旋轉桿2142，該旋轉軒 之兩端分別設置有一旋轉轴2144。 7 201006755 . 該連接件22固設於該内壁212上且該連接件22上開 設有至少一第一螺孔226。 該後蓋23包括一與該前蓋21之樞轉邊214相對之第 一側壁234及與第一側壁234相對設置之第二側壁235及 一收容部232。該第一側壁234上對應該前蓋21之旋轉桿 2142上之旋轉軸2144位置設有可套設該旋轉軸2144之收 容孔（圖未示）。該樞轉邊234通過旋轉軸2144於收容孔 内轉動，以使該前蓋21相對後蓋23打開或扣合。該收容 ©部232用於收容紙張。 該壓合組件24由鋁、鎂或其合金等一些彈性材質做 成。該壓合元件24包括一壓持件242、至少一滾輪244及 至少一螺栓246。該壓持件242包括一固定端2422及連接 於該固定端2422 —邊且相對該固定端2422彈性彎曲之彈 性支撐臂2424。該固定端2422對應該連接件22上第一螺 孔226位置開設有至少一第二螺孔2423。該彈性支撐臂 Α 2424由其遠離該固定端2422之一端向其中心開設有一缺 口 2428。於該缺口 2428兩側分別設置有一組固定片2426， 每組固定片2426上都形成有一組相對應之軸孔2427。 該滾輪244為圓柱結構，其包括一滾壓部2442及二個 分別設置於該滾壓部2442兩侧之軸桿2446。該軸桿2446 分別穿置於每組固定片2426對應之軸孔2427内，並可使 該滾壓部2442相對該軸孔2427轉動。該第二螺孔2423與 該連接件22上之第一螺孔226相配合，並通過該至少一螺 栓246將該壓合元件24固持於該前蓋21之内壁212上。 8 201006755 . 實際應用中，也可於彈性支撐臂2424上只設置一組固 . 定片2426及一滾輪244,該組固定片2426上都形成有一組 相對應之軸孔2427,該滾輪244之二個軸桿2446分別穿置 於每組固定片2426對應之軸孔2427内，並可於該軸孔2427 内轉動。也可理解，該彈性支撐臂2424上也可設置二組以 上之固定片2426及複數滾輪244,每組固定片2426上都形 成有一組相對應之軸孔2427，每個滚輪244之二個軸桿 2446分別穿置於每組固定片2426對應之軸孔2427内，並 ⑩可於該軸孔2427内轉動，並不限於本實施方式。 該鎖合部25包括一卡鉤252及一卡孔254。該卡鉤252 設置於該前蓋21之旋轉邊215上。該卡鉤21由彈性塑膠 做成且與該前蓋21 —體成型。該卡孔254開設於該後蓋23 第二側壁235上。該卡鉤252與該卡孔254相匹配，該卡 鉤252可卡設於該卡孔254内以使該前蓋21與後蓋23相 扣合。將該卡鉤252往該收容部232方向按壓可將該前蓋 赢 21開啟。 使用時，將紙張放置於該後蓋23之收容部232内，旋 轉前蓋21之旋轉邊215,使該前蓋21上之卡鉤252卡設於 該卡孔254内，以使該前蓋21與後蓋23相扣合，此時， 該壓合組件24之滚輪244上之滾壓部2442通過壓持件242 提供之彈力彈性地壓持於該紙張上。該壓紙裝置20出紙 時，該壓合組件24之滾輪244之滚壓部2442壓持紙張之 同時，並可於紙張之帶動下轉動，滾輪244之滾壓部2442 與紙張之間為滾動摩擦，因此可減小二者之間之摩擦力， 9 201006755 從而減小卡紙現象之發生。 該壓紙裝置壓紙時，該壓合元件之滾輪壓持紙張之同 時，並可於紙張之帶動下轉動，該滾輪與紙張之間為滾動 摩擦，兩者之間之接觸面積小，因此，可減小兩者之摩擦 力’減小卡紙現象之發生。 不 綜上所述，本發明確已符合發明專利之要件，遂依法 =出專财請。惟，以上所述者僅為本發明之較佳實施方 ❹ί❹以此限制本案之中請專利範圍。舉凡熟悉本案 m ^ ^ 月1τ ^1乍之#效修飾或變化，皆 應涵盍於以下申請專利範圍内。 【圖式簡單說明】 圖1係現有之一種壓紙裝置之立體圖； 圖2係本發明較佳實施方 圖1总国ο士矿 供之魔紙裝置之立體圖； 圖3係圖2中之壓紙裝置 Μ 裝示咅圖 之則盍與壓合元件之間之組 !〇、20 U、21 12 13 14、23 112 22 【主要元件符號說明】 壓紙裴置 前蓋 固定片 彈性件 後蓋 内侧壁 連接件 201006755 . 壓合組件 24 鎖合部 25 樞轉邊 214 旋轉邊 215 内壁 212 旋轉桿 2142 旋轉軸 2144 第一螺孔 226 ®第一侧壁 234 第二侧壁 235 收容部 232 壓持件 242 滾輪 244 螺栓 246 固定端 2422 A 彈性支撐臂 第二螺孔 2424 2423 缺口 2428 固定片 2426 軸孔 2427 滾壓部 2442 軸桿 2446 卡鉤 252 卡孔 254 11In view of the above, it is necessary to provide a paper-pressing device that avoids jamming. 6 201006755 • A paper pressing device ‘which includes a front cover and a - can be engaged with the front cover. The rear cover U includes an inner wall. The front cover can be rotated open or fastened relative to the back cover. The paper-receiving device further includes a coupling member that is fixed to the inner wall of the front cover. The pressing member includes a holding member and at least one roller. The pressing member comprises a fixed end and an elastic branch arm connected to one side of the fixed end and elastically bent relative to the fixed end. At least a set of fixing pieces are provided on the elastic branch arm. A set of corresponding ones are formed on each set of fixed pieces: a boring shaft hole, the roller is inserted into the shaft hole of the fixing piece, and can be rolled relative to the drawing hole. Compared with the prior art, when the paper pressing device presses the paper, the roller of the pressing component presses the paper while being driven by the paper, and the rolling friction between the roller and the paper is between the two. The contact area is small, so the friction between the two can be reduced, and the occurrence of paper jam can be reduced. [Embodiment] Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings. Referring to FIG. 2 and FIG. 3 together, the paper pressing device 20 provided by the embodiment of the present invention can be disposed in a printer, a photocopier, and a scanner. The platen device 20 includes a front cover 21 and a member 22, a cover 23, a press-fit member μ, and a lock portion 25, which are engageable with the front cover 21. The cover 21 has a square shape and includes a pivoting edge 214, a rotating edge 215 disposed opposite the pivoting edge 214, and an inner wall 212. In this embodiment, the pivoting edge 214 is provided with two rotating rods 2142, and two rotating shafts 2144 are respectively disposed at two ends of the rotating side. 7 201006755 . The connecting member 22 is fixed on the inner wall 212 and the connecting member 22 is provided with at least one first screw hole 226 . The rear cover 23 includes a first side wall 234 opposite to the pivoting edge 214 of the front cover 21, a second side wall 235 opposite to the first side wall 234, and a receiving portion 232. A receiving hole (not shown) for arranging the rotating shaft 2144 is disposed on the first side wall 234 at a position corresponding to the rotating shaft 2144 of the rotating rod 2142 of the front cover 21. The pivoting edge 234 is rotated in the receiving hole by the rotating shaft 2144 to open or snap the front cover 21 relative to the rear cover 23. The housing portion 232 is for accommodating paper. The press-fit assembly 24 is made of some elastic material such as aluminum, magnesium or its alloy. The pressing member 24 includes a holding member 242, at least one roller 244, and at least one bolt 246. The holding member 242 includes a fixed end 2422 and an elastic supporting arm 2424 that is coupled to the fixed end 2422 and elastically bent relative to the fixed end 2422. The fixed end 2422 is provided with at least one second screw hole 2423 corresponding to the first screw hole 226 of the connecting member 22. The resilient support arm 2424 has a cutout 2428 defined at its center away from one end of the fixed end 2422. A plurality of fixing pieces 2426 are respectively disposed on two sides of the notch 2428, and each set of fixing pieces 2426 is formed with a corresponding set of shaft holes 2427. The roller 244 has a cylindrical structure and includes a rolling portion 2442 and two shafts 2446 respectively disposed on two sides of the rolling portion 2442. The shaft 2446 is respectively inserted into the corresponding shaft hole 2427 of each set of fixing pieces 2426, and the rolling portion 2442 is rotated relative to the shaft hole 2427. The second screw hole 2423 cooperates with the first screw hole 226 of the connecting member 22, and the pressing member 24 is held by the at least one bolt 246 on the inner wall 212 of the front cover 21. In the actual application, only one set of fixing piece 2426 and one roller 244 may be disposed on the elastic supporting arm 2424. The set of fixing pieces 2426 are formed with a corresponding set of shaft holes 2427, and the roller 244 is The two shafts 2446 are respectively inserted into the corresponding shaft holes 2427 of each set of fixing pieces 2426, and are rotatable in the shaft holes 2427. It can also be understood that the elastic support arm 2424 can also be provided with two or more sets of fixing pieces 2426 and a plurality of rollers 244. Each set of fixing pieces 2426 is formed with a corresponding set of shaft holes 2427, and two axes of each of the rollers 244 The rods 2446 are respectively inserted into the corresponding shaft holes 2427 of each set of fixing pieces 2426, and 10 can be rotated in the shaft holes 2427, and are not limited to the embodiment. The latching portion 25 includes a hook 252 and a latching hole 254. The hook 252 is disposed on the rotating side 215 of the front cover 21. The hook 21 is made of elastic plastic and is integrally formed with the front cover 21. The hole 254 is defined in the second side wall 235 of the rear cover 23. The hook 252 is matched with the hole 254. The hook 252 can be inserted into the hole 254 to engage the front cover 21 with the back cover 23. Pressing the hook 252 in the direction of the receiving portion 232 can open the front cover 21. In use, the paper is placed in the accommodating portion 232 of the rear cover 23, and the rotating side 215 of the front cover 21 is rotated, so that the hook 252 on the front cover 21 is locked in the hole 254, so that the front cover 21 is engaged with the rear cover 23, at this time, the rolling portion 2442 on the roller 244 of the pressing assembly 24 is elastically pressed against the paper by the elastic force provided by the pressing member 242. When the paper pressing device 20 is out of paper, the rolling portion 2442 of the roller 244 of the pressing assembly 24 presses the paper while being rotated by the paper, and the rolling portion 2442 of the roller 244 is rolled with the paper. Friction, therefore reducing the friction between the two, 9 201006755 thus reducing the occurrence of paper jam. When the paper pressing device presses the paper, the roller of the pressing component presses the paper while being rotated by the paper, and the rolling friction between the roller and the paper is small, so the contact area between the two is small, therefore, It can reduce the friction between the two to reduce the occurrence of paper jam. In summary, the present invention has indeed met the requirements of the invention patent, and is legally qualified. However, the above is only a preferred embodiment of the present invention. Anyone who is familiar with the m ^ ^ 1 1 ^ ^ ^ 乍 效 修饰 修饰 修饰 修饰 修饰 效 效 效 效 效 效 效 效 效 效 效 效 效 效 效 效 效 效BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a conventional paper pressing device; Fig. 2 is a perspective view of a magic paper device provided by the general country of the present invention in Fig. 1; Fig. 3 is a pressure in Fig. 2. Paper device 组 组 〇 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 Inner side wall connecting member 201006755. Pressing assembly 24 Locking portion 25 Pivot side 214 Rotating side 215 Inner wall 212 Rotating rod 2142 Rotating shaft 2144 First screw hole 226 ® First side wall 234 Second side wall 235 Housing portion 232 Pressing 242 Roller 244 Bolt 246 Fixed end 2422 A Elastic support arm Second screw hole 2424 2423 Notch 2428 Fixing piece 2426 Shaft hole 2427 Rolling part 2442 Shaft 2446 Hook 252 Card hole 254 11