TW200821159A - Paper kicker for exit roller and printer utilizing the same - Google Patents

Paper kicker for exit roller and printer utilizing the same Download PDF

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Publication number
TW200821159A
TW200821159A TW095141153A TW95141153A TW200821159A TW 200821159 A TW200821159 A TW 200821159A TW 095141153 A TW095141153 A TW 095141153A TW 95141153 A TW95141153 A TW 95141153A TW 200821159 A TW200821159 A TW 200821159A
Authority
TW
Taiwan
Prior art keywords
paper
roller
pushing
push
cam
Prior art date
Application number
TW095141153A
Other languages
Chinese (zh)
Inventor
Ying-Qi Zhu
Original Assignee
Benq Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Benq Corp filed Critical Benq Corp
Priority to TW095141153A priority Critical patent/TW200821159A/en
Priority to US11/935,804 priority patent/US20080106033A1/en
Publication of TW200821159A publication Critical patent/TW200821159A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
    • B65H29/14—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers and introducing into a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/54—Article strippers, e.g. for stripping from advancing elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/51—Cam mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/133—Limited number of active elements on common axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/12—Single-function printing machines, typically table-top machines

Abstract

A kicking mechanism and a printer utilizing the same. The printer comprises a main body, an exit roller and a kicking mechanism. The exit roller is rotatably disposed on the main body and comprises a shaft portion and a rolling portion coaxial with the shaft portion and sending paper out of the main body. The kicking mechanism comprises a kicker, a cam and an elastic element. The kicking mechanism is joined to the shaft portion and reciprocates to protrude from the rolling portion to push paper away from the exit roller by rotation of the shaft.

Description

i 200821159 ， 九、發明說明： 【發明所屬之技術領域】 本發明係有關於-種印表機，特別是有關於一種設置 有推紙機構的印表機。 【先前技術】 第1圖為習知的具有自動進紙裝置（Aut〇 sheetFeed， ASF)的印表機的構造的示意圖。在第！圖中托紙架1〇上 的紙張5經由取紙滾輪（pick_up r〇ller) 2〇捲入印表機中 _ 進行列印，列印完畢的紙張經由進給滾輪（feedr〇Uer) 3〇 以及出紙滾輪（exit roller) 40輸送而排出至印表機外。進 給滾輪30以及出紙滾輪40係以_同步皮帶（未圖示）連 結而同步同向轉動。 .第2a、2b圖表示進給滾輪3〇與取紙滾輪2〇的關係， 取紙滾輪20與進給滾輪30係以同一個馬達5〇驅動，但取 紙滾輪20係藉由ASF離合器6〇控制與馬達5〇的連結或 分開。在取紙狀態時，如第2a圖所示，ASF離合器6〇嚙 _ 合於取紙滾輪20的齒輪組，使馬達50的轉動得以傳遞至 取紙滾輪20而使其轉動進行取紙，同時馬達5〇做逆時針 轉動’使取紙滾輪20做順時針轉動而取紙，此時進給滾輪 30與取紙滾輪20朝同方向轉動，但是此時進給滾輪3〇轉 動方向與出紙方向相反，由於進給滾輪30以及出紙滾輪 30係以同步皮帶連結而同步同向轉動，此出紙滾輪4〇的 轉動方向也與出紙方向相反。 在列印狀態時，如第2b圖所示，ASF離合器60與取 0535-A21851 TWF(N2)；F05068；CHENTF 5 200821159 紙滾輪20的齒輪組斷開，使馬達50僅驅動進給滾輪30， 此時馬達50做順時針轉動，使進給滾輪30與出紙滾輪40 做逆時針方向轉動，與出紙方向相同。 但是在列印完成時，若一紙張的紙尾並未完全脫離出 紙滾輪40，則在取紙滾輪20取紙時，由於出紙滾輪40會 朝與出紙方向相反的方向旋轉，反而會將紙張倒捲入印表 機中，而造成卡紙的現象。 【發明内容】 有鑑於此’本發明的目的在於提供一種推紙機構，配 合出紙滾輪的旋轉而動作，將已列印完畢的紙張朝出紙方 向推送，使紙張得以完全脫離出紙滾輪，以避免卡紙的十主 況。 、月 本發明之印表機的一較佳實施例包括一 肢、—出紙 滚輪以及至少-減機構。出紙滾輪射轉動地設卿 上，並包括-轴部以及-滾筒部，滾筒部與轴部係同= 置，滾筒部係伴隨轴部的轉動而轉動並將已列$ ^ 張排出該本體。推紙機構係結合於軸部，且伴的紙 的轉動，朝出紙方向間歇性地突出於滾筒部，4 、、、氏/袞輪 、八口j 口I ，推動已列（ 完成的紙張而使其脫離出紙滾輪。 41 在上述之較佳實施例中’推紙機構包括— 於本體與軸部之間，推紙件係伴隨出紙滾輪的_了 ’ j 出紙方向間歇性地突出於滾筒部，推動已 二朝一 而使其脫離出紙滾輪。 P&成的紙張 在上述之較佳實施例中 ’推紙機構更包括 凸輪以及 0535-A21851TWF(N2)；F05068；CHENTF 6 200821159 ^生7L件。凸輪係設於軸部上並抵接於 / 伴ik軸部的旋轉而轉]—、 、、、 ，凸輪係 普夕翻 ^ 吏推、、氏件平行於出紙方向做往籍 件，使推紙件保持抵接於凸輪本間，亚偏壓於推紙 點抵接二貫施例中’係當凸輪之離旋轉中心最近 观於推紙件時’推紙件突出於滾筒部。 抵二佳實施例中，推紙件包括-推紙部以及- 邠係連接於抵接部並靠近軸部設置，抵接部 係可私動地設於本體上，並具 二:係抵接於第-面，彈性元件係偏壓於二二面，當凸輪 义^ 已列印几成的紙張而使其脫離出紙滚輪。第 一面與弟二面係相對。 在上述之較佳實施例中，推紙部包括一上推紙體以及 下推、、、氏版，上推紙體與下推紙體皆連接於第一面，且上 紙體分別呈圓弧形，並環繞軸部，上推紙體 ’、曰、1犬出於滾筒部，推動已列 使其 脫離出紙勝上推紙體的表面形成錄=。 為了襄本無明之上述和其他目的、徵、和優點能更 ，頌易f重’下文特舉_較佳實施例，並配合所附圖示，作 詳細說明如下·· 【實施方式】 、第3all為本發明之印表機的出紙機構的立體圖，第3b 圖為第化圖中A部分的放大圖。第4圖為第3a圖的分解i 200821159, IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a printer, and more particularly to a printer equipped with a paper pushing mechanism. [Prior Art] Fig. 1 is a schematic view showing the configuration of a conventional printer having an automatic sheet feeding device (ASF). In the first! In the figure, the paper 5 on the paper tray 1 is fed into the printer via a pickup roller (2), and the printed paper is fed through a feed roller (feedr〇Uer). And an exit roller 40 is conveyed and discharged to the outside of the printer. The feed roller 30 and the paper discharge roller 40 are coupled in synchronism in the same direction by a _ timing belt (not shown). 2a, 2b show the relationship between the feed roller 3〇 and the pickup roller 2〇, the pickup roller 20 and the feed roller 30 are driven by the same motor 5〇, but the pickup roller 20 is driven by the ASF clutch 6 〇 Controls the connection or separation from the motor 5〇. In the pickup state, as shown in Fig. 2a, the ASF clutch 6 is engaged with the gear set of the pickup roller 20, so that the rotation of the motor 50 is transmitted to the pickup roller 20 to be rotated to take the paper, and at the same time The motor 5〇 rotates counterclockwise to make the paper take-up roller 20 rotate clockwise to take the paper. At this time, the feed roller 30 and the pickup roller 20 rotate in the same direction, but at this time, the feed roller 3 turns in the direction of rotation and the paper exit. In the opposite direction, since the feed roller 30 and the paper discharge roller 30 are synchronously rotated in the same direction by the timing belt connection, the direction in which the paper discharge roller 4 is rotated is also opposite to the paper discharge direction. In the printing state, as shown in FIG. 2b, the ASF clutch 60 is disconnected from the gear set of the 0535-A21851 TWF (N2); F05068; CHENTF 5 200821159 paper roller 20, so that the motor 50 drives only the feed roller 30, At this time, the motor 50 is rotated clockwise, and the feed roller 30 and the paper discharge roller 40 are rotated counterclockwise in the same direction as the paper discharge direction. However, when the printing is completed, if the paper tail of a paper does not completely separate from the paper discharge roller 40, when the paper take-up roller 20 picks up the paper, the paper discharge roller 40 rotates in the opposite direction to the paper discharge direction, but instead Roll paper into the printer, causing paper jams. SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a paper-feeding mechanism that cooperates with the rotation of a paper-feeding roller to push the printed paper toward the paper-feeding direction, so that the paper can be completely separated from the paper-feeding roller. To avoid the ten main conditions of the paper jam. A preferred embodiment of the printer of the present invention includes a limb, a paper exit roller, and at least a subtractive mechanism. The paper output roller is rotatively disposed, and includes a shaft portion and a roller portion. The roller portion and the shaft portion are the same, and the roller portion rotates with the rotation of the shaft portion and discharges the already arranged $^. . The paper-feeding mechanism is coupled to the shaft portion, and the accompanying paper rotates intermittently to the roller portion in the paper-feeding direction, 4, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , And in the preferred embodiment described above, the 'pushing mechanism includes - between the main body and the shaft portion, and the paper pushing member is accompanied by the ejecting roller _ 'j. Protruding on the roller portion, pushing it out of the paper exit roller. P& formed paper in the preferred embodiment described above 'The paper pushing mechanism further includes a cam and 0535-A21851TWF (N2); F05068; CHENTF 6 200821159 ^ 7L pieces. The cam system is set on the shaft and abuts on the rotation of the / ik shaft.],,,,,,,,,,,,,,,,,,,,,,, The paper-feeding member keeps the paper-feeding member in contact with the cam, and the sub-biasing is in the second embodiment of the paper-feeding point. When the cam is closest to the rotating center, the paper-feeding member protrudes from the paper-feeding member. The roller portion. In the second embodiment, the paper pushing member includes a paper pushing portion and a tethering system. The portion is disposed adjacent to the shaft portion, and the abutting portion is movably disposed on the body, and has two functions: abutting on the first surface, and the elastic member is biased on the two sides, when the cam is printed The paper is separated from the paper exit roller. The first side is opposite to the second side. In the above preferred embodiment, the paper pushing portion includes a push-up paper body and a push-down, and a version, which is pushed up. The paper body and the push-down paper body are all connected to the first surface, and the upper paper body has a circular arc shape, and surrounds the shaft portion, and pushes up the paper body, the 曰, 1 dog out of the roller portion, and pushes the column to be detached. The paper exits the surface of the push paper to form a record. In order to blame the above and other purposes, signs, and advantages of the present invention, it is more convenient to use the following description. [Embodiment] The third embodiment is a perspective view of the paper discharge mechanism of the printer of the present invention, and FIG. 3b is an enlarged view of a portion A of the first embodiment. FIG. break down

〇535-A21851TWF(N2);F05068；CHENTF 7 200821159 圖。本發明之印表機1〇〇〇包枯/本體100、一出紙滾輪2〇〇 以及一推紙機構3〇〇，當出紙滚輪2〇〇轉動時，紙張（未 圖示）從本體100朝箭頭D所系的出紙方向離開本體100。 如第4圖所示，出紙滚輪200包括一軸部210以及z 滚筒部220。軸部21〇係玎旋轉地設置於本體1〇〇上，滚 筒部220為直徑比軸部21〇大的圓柱體，設置於軸部21〇 的外圍’並與軸部21〇為同軸設置’因此當軸部210旋轉 日守’滾同部220也會旋轉而將紙張朝出紙方向D推動。 為了確保紙張能被推離出紙滚筒200,以避免產生紙 張回捲而卡紙的情況，本發明的印表機1000在本體與出紙 滚輪2〇0之間設置了推紙機構3〇〇。推紙機構3〇〇會隨著 出紙滾輪200的旋轉而間歇地突出於滾筒部220，而協助 將紙張推離滾筒部22G。以下說明推紙機構3()()的構造及 推紙機構300包括 彈丝330甘士你 —凸輪320以2〇 535-A21851TWF (N2); F05068; CHENTF 7 200821159 Figure. The printer of the present invention has a cover/body 100, a paper discharge roller 2〇〇, and a paper pushing mechanism 3〇〇. When the paper discharge roller 2 rotates, a paper (not shown) is attached to the body. 100 leaves the body 100 in the paper exit direction in which the arrow D is attached. As shown in FIG. 4, the paper discharge roller 200 includes a shaft portion 210 and a z roller portion 220. The shaft portion 21 is rotatably disposed on the body 1A, and the roller portion 220 is a cylindrical body having a diameter larger than that of the shaft portion 21, and is disposed at a periphery of the shaft portion 21'' and coaxial with the shaft portion 21'. Therefore, when the shaft portion 210 is rotated, the same portion 220 is also rotated to push the paper toward the paper discharge direction D. In order to ensure that the paper can be pushed away from the paper discharge roller 200 to avoid paper jam when the paper is rewinded, the printer 1000 of the present invention is provided with a paper pushing mechanism 3 between the main body and the paper discharge roller 2〇. . The paper feed mechanism 3 间歇 intermittently protrudes from the roller portion 220 as the paper discharge roller 200 rotates, and assists in pushing the paper away from the roller portion 22G. The following describes the construction of the paper pushing mechanism 3 () () and the paper pushing mechanism 300 includes the elastic wire 330 Gans you - cam 320 to 2

=3〇。其中推紙件310以滑軌318可滑動地嵌合方 體⑽的突耳120的溝槽（未圖示）中，彈箬33〇叫 與本體⑽之間，一端藉由套接於本體： 3 而定位於本體⑽上，另—端係缝於推今 上。凸輪32〇套接於軸部2]〇上，藉由彈簧％ 墾，推紙件310係保持抵接於凸輪32〇。 ” 、' 推紙件310的構造如第5a、5b圖 括-推紙部以及抵接部311，推紙部:;一=1。=3〇. The paper pushing member 310 is slidably fitted into the groove (not shown) of the lug 120 of the square body (10) by the sliding rail 318. The magazine 33 is called between the body and the body (10), and one end is sleeved on the body: 3 is positioned on the body (10), and the other end is sewn on the push. The cam 32 is sleeved on the shaft portion 2], and the paper pushing member 310 is held in contact with the cam 32 by the spring % 〇. The structure of the paper pushing member 310 is as shown in Figs. 5a and 5b - the paper pushing portion and the abutting portion 311, the paper pushing portion: a = 1.

0535-Α2 ί 85 〗TWF(f\/2) ;H)5068;CHEiS/TF 8 200821159 一第一面3112以及一莖一 弟一面，上推紙體312盥下推 紙體3M分別連接於第—面3112 ,並偏向第—面迎的 -側邊’且上推紙體312與下推紙體314分別呈弧形，並 ㈣出紙滚輪200的轴部21()。凸輪32()係抵 3U2’r二面3114上具有1部_，在凹部3:二 具有大柱316，彈簧330係套接於突柱316上並偏壓於 抵接部311。 1γ —凸=二央為一D形的通孔326，藉由軸部21。 貝牙通L 326而使凸輪320肖合於出紙 了使凸輪，能確實枝，料部21()㈣分輪:西= 通孔326而形成D字形。凸輪320會隨著轴部21‘動: 而使凸輪離旋轉中心最遠的軺動 324輪流抵接於推紙件训㈣心、㈣轉中心最近的點 3ΐυ的抵接部311的第—％ 以下說明推紙__㈣n ® 31120 態，當出紙滚輪2。。轉二:接=U處於最大行程時的狀 轉，並抵接於推紙件310的抵^ 3320會隨著車由部別旋 凸輪320旋轉至其離旋轉中1的弟一面3112。當 311時，凸輪320會使推紙件綱退袁了 322抵接於抵接部 體312的表面略低於滾筒部22〇的3^面軸部210，使上推紙 第8圖表示凸輪320的離旌由一 於抵接部311的狀態，f軸部21二二取近的點324抵接 轉中心最近的點324抵接於抵接a、、％轉動使凸輪的離旋 - ϋ| 311時，推紙件310受0535-Α2 ί 85 〗 〖TWF (f \ / 2); H) 5068; CHEiS / TF 8 200821159 a first side 3112 and a stem and a younger side, push up the paper body 312 盥 push the paper body 3M respectively connected to the The face 3112 is biased toward the side-side of the first face and the push-up paper body 312 and the lower pusher body 314 are respectively curved, and (4) the shaft portion 21 () of the paper discharge roller 200. The cam 32() has a portion _ on the two sides 3114 of the 3U2'r, and has a large post 316 in the recess 3: two. The spring 330 is sleeved on the stud 316 and biased against the abutting portion 311. 1 γ - convex = two central ends are a D-shaped through hole 326 by the shaft portion 21. The teeth pass L 326 to make the cam 320 spliced to the paper out so that the cam can be surely branched, and the material portion 21 () (four) minute wheel: west = through hole 326 to form a D-shape. The cam 320 moves along with the shaft portion 21': the turbulence 324 that makes the cam farthest from the center of rotation alternately abuts on the paper-feeding member (four) heart, and (d) the third point of the abutting portion 311 closest to the center of the center of the rotation The following describes the push paper __(four)n ® 31120 state when the paper exit roller 2 is used. . Turning two: the rotation of the U is at the maximum stroke, and the abutment 3320 of the pusher 310 rotates as the car is rotated by the partial cam 320 to its side 3112 from the rotating one. When 311, the cam 320 causes the pusher member to retreat 322 to abut the surface of the abutting portion 312 slightly lower than the face portion 210 of the roller portion 22〇, so that the push-up paper 8 indicates the cam. The deviation of 320 is in the state of the abutting portion 311, and the point 324 where the f-axis portion 21 is close to the center of the point 324 abuts the point 324 closest to the center of rotation, and the rotation of the cam is caused by the rotation of the cam. | At 311, the paper pushing unit 310 is subject to

0535-Α21851 TWF( Ν2) ； F05068; CH ENTF 9 200821159 彈κ 330的彈力沿圖中箭頭方向運動，靠近軸部21 〇，從 而使上推紙體312的表面向外突出於滾筒部22〇，藉此將 列印完的紙張推離出紙滾輪200。當軸部210持續轉動時， 上推紙體312會間歇性地突出、縮回於滚筒部22〇，如此 可將停留在滾筒部220上的紙張朝出紙方向推送，使紙張 脫離滾筒部220，從而避免卡紙。 為了增加上推紙體312與紙張的摩擦力而避免打滑， 可在上推紙體312的表面形成鑛齒狀，戒其他可增力口摩擦 ⑩力的形狀，或使用高摩擦係數的材料製造上推紙體312， 下推紙體314主要是用來使推紙體31〇與軸部21〇保持定 藉由本發明的推紙機構300,可使停留在出紙滾輪2〇〇 上的紙張朝出紙方向推送，而使紙張完全脫離出紙滾輪 2〇〇，避免紙張產生回捲而造成卡紙的情況。 雖然本發明已以較佳實施例揭露如上，然其並非用以 限定本發明，任何熟習此技藝者，在不脫離本發明之精神 籲和靶圍内，當可作些許之更動與潤飾，因此本發明之保護 範圍當視後附之申請專利範圍所界定者為準。0535-Α21851 TWF(Ν2) ; F05068; CH ENTF 9 200821159 The elastic force of the elastic κ 330 moves in the direction of the arrow in the figure, close to the shaft portion 21 〇, so that the surface of the push-up paper body 312 protrudes outward from the roller portion 22〇, Thereby, the printed paper is pushed away from the paper discharge roller 200. When the shaft portion 210 continues to rotate, the push-up paper body 312 intermittently protrudes and retracts to the roller portion 22A, so that the paper staying on the roller portion 220 can be pushed in the paper discharge direction to release the paper from the roller portion 220. To avoid paper jams. In order to increase the friction between the paper body 312 and the paper to avoid slipping, a mineral tooth shape may be formed on the surface of the upper paper body 312, or a force of 10 forces may be applied to the force increasing port, or a material with a high friction coefficient may be used. The paper body 312 is pushed up, and the paper pushing body 314 is mainly used to hold the paper pushing body 31〇 and the shaft portion 21〇 by the paper pushing mechanism 300 of the present invention, so that the paper staying on the paper discharge roller 2〇〇 can be retained. Pushing in the paper exit direction, so that the paper is completely separated from the paper exit roller 2, and the paper is prevented from being rewinded and the paper jam is caused. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and any skilled person skilled in the art can make some modifications and retouchings without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

0535-Α21851 TWF(N2)；F05068；CHENTF 10 200821159 【圖式簡單說明】 第1圖為習知的具有自動進紙裝置的印表機的構造的 示意圖。 第2a、2b圖分別表示在取紙狀態與列印狀態下，進給 滾輪與取紙滾輪的動力傳遞關係。 第3 a圖為本發明之印表機的出紙機構的立體圖。 第3b圖為第3a圖中A部分的放大圖。 第4圖為第3a圖的分解圖。 φ 第5a、5b圖表示本發明之推紙件的構造。 第6圖表示本發明之凸輪的構造。 第7圖表示本發明之凸輪的離旋轉中心最遠的點抵接 於推紙件的狀態。 第8圖表示本發明之凸輪的離旋轉中心最近的點抵接 於推紙件的狀態。 【主要元件符號說明】 5〜紙張； ® 10〜托紙架； 20〜取紙滾輪； 3 0〜進給滾輪； 40〜出紙滚輪； 50〜馬達； 60〜ASF離合器； 100〜本體； 0535-A21851TWF(N2)；F05068；CHENTF 11 2008211590535-Α21851 TWF(N2); F05068; CHENTF 10 200821159 [Simple description of the drawings] Fig. 1 is a schematic view showing the configuration of a conventional printer having an automatic paper feeding device. Figures 2a and 2b show the power transmission relationship between the feed roller and the pickup roller in the pickup state and the printing state, respectively. Fig. 3a is a perspective view of the paper discharge mechanism of the printer of the present invention. Figure 3b is an enlarged view of part A of Figure 3a. Figure 4 is an exploded view of Figure 3a. φ Figures 5a and 5b show the construction of the paper feeder of the present invention. Fig. 6 shows the construction of the cam of the present invention. Fig. 7 is a view showing a state in which the point farthest from the center of rotation of the cam of the present invention abuts against the paper pusher. Fig. 8 is a view showing a state in which the point closest to the center of rotation of the cam of the present invention abuts against the paper pusher. [Main component symbol description] 5~paper; ® 10~ paper holder; 20~ paper take-up roller; 3 0~feed roller; 40~ paper exit roller; 50~ motor; 60~ASF clutch; 100~ body; 0535 -A21851TWF(N2);F05068;CHENTF 11 200821159

120〜 突耳； 140〜 柱體； 200〜出紙滾輪； 210〜軸部； 220〜 滾筒部； 300〜推紙機構； 310〜 推紙件； 311〜 '抵接部， 312〜 /上推紙體； 316〜 <突柱； 314〜 -下推紙體； 318- /滑軌； 320- 〃凸輪； 326- /通孔； 330- /彈簧； 1000 〜印表機； 3112 〜第一面； 3114 〜第二面。 0535-A21851 TWF(N2)；F05068；CHENTF 12120~ lug; 140~ cylinder; 200~ paper exit roller; 210~ shaft section; 220~ roller section; 300~ paper pushing mechanism; 310~ pushing paper piece; 311~ 'abutment part, 312~ / push up Paper body; 316~ <stud; 314~ - push down paper body; 318- / slide rail; 320- 〃 cam; 326- / through hole; 330- / spring; 1000 ~ printer; 3112 ~ first Face; 3114 ~ second side. 0535-A21851 TWF(N2); F05068; CHENTF 12

Claims (1)

200821159 十、申請專利範圍： 1·一種推紙機構，用於一印表機，該 體以及一出紙滚輪，該推紙機構包括： 又機具有一本 一推紙件，設於該本體與該出紙滾輪之 出紙滾輪的轉動，朝一出紙方向間歇性地突=，亚伴隨該 輪’推動已列印完成的紙張而使其脫r 'Λ ^ 、 Λ 、 一雕磙出紙滾於· 凸輪，設於該出紙滾輪上並抵接於誃 ^，200821159 X. Patent application scope: 1. A paper pushing mechanism for a printer, the body and a paper output roller, the paper pushing mechanism comprises: a machine having a paper pushing piece, which is arranged on the body The rotation of the paper discharge roller of the paper discharge roller intermittently protrudes toward a paper discharge direction, and the paper is accompanied by the wheel to push the printed paper to be detached, and the paper is rolled out. The cam is disposed on the paper exit roller and abuts the 誃^, 輪係伴隨該軸部的旋轉而轉動，使該推紙2承紙件，該凸 方向做往復移動；以及 ”行於該出紙 一彈性元件，設於該推紙件與該本體之 、， 該推紙件，使該推紙件保持抵接於該凸輪。θ ’亚偏壓於 2. 如申請專利範圍第丨項所述之推 性元件為彈簧。 、，、氏栈構，其中該彈 3. 如申請專利範圍第丨項所述之推 凸輪之離其旋轉中心最近的點抵接於、#，其中當該 件係突出於該出紙滾輪。 …紙件時，該推紙 4. 如申請專利範圍第2項所 # 紙件包括-推紙部以及—抵接部=構’其中該推 接部並靠近該出紙滾於&署该推紙部係連接於該抵 本體上，並具有相對二又二:亥抵接部係可移動地設於該 輪係抵接於該第一面°ί二罘—面以及一第二面，該凸 於妒馘 。亥彈黃係偏壓於該第二面，當該凸 扣出;Ψ Μ抵接^故往復移動時，該推紙部係間歇性地 突出於該出紙滾輪，推 出紙滾輪。 推動已列印完成的紙張而使其脫離該 0535-Α21851 TWF(N2)；F05068；CHENTF 13 200821159 200821159 紙部HI請專魏圍第4項所述之推紙機構，其中該推 推紙雕比查上推紙妝以及—下推紙體，該上推紙體與該下 別呈= 該上推紙體與該下推紙體分 突出：：：’亚環繞該出紙滾輪，該上推紙體係間歇性地 出紙滾^輪’推動已列印完成的紙張而使其脫離該 上推專利範圍第5項所述之推紙機構，其中該 上推、、、氏肢的表面形成鋸齒狀。 7·—種印表機，包括·· 一本體； 卩與姉部係同軸設置，該滾筒部係 體偏轴部的轉動而轉動並將已列印完成的紙張排出該: 的轉料錄部，且伴隨該出紙滾輪 印n ίΓ 地突出於該滾筒部，推動已列 f7凡成的、、、氏張而使其脫離該出紙滾輪。 8·如申請專利範圍第7項所 機構包括一施μ彼. ρ表块，其中該推紙 係伴隨該出紙滾輪的轉動，朝 =間雜紙件 該滾筒部，推動已列e、向間歇性地突出於 9如卩元成的紙張岐其麟該出紙滾_。 9.如申凊專利範圍第8項所述 氏濃輪 機構更包括： 機其中該推紙 -凸輪，設於該軸部上並抵接於該推紙件，該凸輪係 〇535-A21851TWF(N2)；F05068；CHENTF 14 200821159 伴隨該軸部的旋轉而轉動，使該推紙件平行於該出紙方向 做往復移動；以及 一彈性元件，設於該推紙件與該本體之間，並偏壓於 該推紙件，使該推紙件保持抵接於該凸輪。 10. 如申請專利範圍第9項所述之印表機，其中該彈性 元件為彈簧。 11. 如申請專利範圍第9項所述之印表機，其中當該凸 輪之離其旋轉中心最近的點抵接於該推紙件時，該推紙件 I 表面係突出於該滚筒部。 12. 如申請專利範圍第9項所述之印表機，其中該推紙 件包括一推紙部以及一抵接部，該推紙部係連接於該抵接 部並靠近該軸部設置，該抵接部係可移動地設於該本體 上，並具有相對設置之一第一面以及一第二面，該凸輪係 抵接於該第一面，該彈簧係偏壓於該第二面，當該凸輪旋 轉而使該抵接部做往復移動時，該推紙部係間歇性地突出 於該滾筒部，’推動已列印完成的紙張而使其脫離該出紙滾 ⑩ 輪。 13. 如申請專利範圍第11項所述之印表機，其中該推 紙部包括一上推紙體以及一下推紙體，該上推紙體與該下 推紙體皆連接於該第一面，且該上推紙體與該下推紙體分 別呈圓弧形，並環繞該軸部，該上推紙體係間歇性地突出 於該滚筒部，推動已列印完成的紙張而使其脫離該出紙滾 輪。 14. 如申請專利範圍第13項所述之印表機，其中該上 0535-A2185lTWF(N2)；F05068；CHENTF 15 200821159 推紙體的表面形成鋸齒狀。The wheel train rotates with the rotation of the shaft portion, so that the paper-feeding member of the paper-feeding member 2 reciprocates; and "the elastic member of the paper-feeding member is disposed on the paper-feeding member and the body" The paper pushing member is configured to keep the paper pushing member abutting against the cam. θ 'sub-biasing is 2. The pushing element according to the third aspect of the patent application is a spring. The bullet 3. The point closest to the center of rotation of the push cam as described in the third paragraph of the patent application is abutted to #, wherein when the piece protrudes from the paper exit roller. As in the second paragraph of the patent application, the paper includes a paper-feeding portion and an abutting portion = a structure, wherein the pushing portion is adjacent to the paper-feeding roller and the paper-feeding portion is connected to the abutting body. And having two opposites: the abutting portion is movably disposed on the wheel system to abut the first surface and the second surface, and the second surface is convex. Relating to the second surface, when the convex buckle is released; when the Μ Μ abuts, the paper pushing portion intermittently protrudes from the second surface Roller, push out the paper roller. Push the printed paper out of the 0535-Α21851 TWF(N2); F05068; CHENTF 13 200821159 200821159 Paper Department HI Please use the paper-feeding mechanism described in item 4 of Weiwei, among which The push paper carving is more than the push paper makeup and the paper body is pushed down, and the push paper body and the lower paper body are protruded = the push paper body and the push paper body are protruded::: a paper roller that intermittently ejects the paper roll to push the printed paper out of the paper pushing mechanism described in item 5 of the push-up patent range, wherein the push-up, The surface of the limb is formed in a zigzag pattern. 7·--printing machine, including · a body; the cymbal and the cymbal system are coaxially arranged, the roller part rotates by the off-axis part and rotates the finished paper The transfer recording unit is discharged, and the paper discharge roller is protruded from the roller portion to push the sheet, and the sheet is released from the paper discharge roller. The scope of the patent scope item 7 includes a μμ. ρ table block, wherein the paper-feeding system is accompanied The rotation of the paper discharge roller, pushing the paper portion toward the paper portion of the paper, pushes the paper e, and intermittently protrudes to the paper such as the paper element, and the paper roll _. Item 8 of the rich wheel mechanism further includes: the machine, wherein the paper push-cam is disposed on the shaft portion and abuts against the paper pusher, the cam system 〇535-A21851TWF(N2); F05068; CHENTF 14 200821159 rotating with the rotation of the shaft portion to reciprocate the paper pushing member parallel to the paper discharge direction; and an elastic member disposed between the paper pushing member and the body and biased to the paper pushing member Keeping the paper pusher abutting against the cam. 10. The printer of claim 9, wherein the elastic element is a spring. 11. The printer of claim 9, wherein the surface of the paper pusher I protrudes from the roller portion when a point closest to the center of rotation of the cam abuts the paper pusher. 12. The printer of claim 9, wherein the paper pushing member comprises a paper pushing portion and an abutting portion, the paper pushing portion being coupled to the abutting portion and disposed adjacent to the shaft portion, The abutting portion is movably disposed on the body, and has a first surface and a second surface disposed opposite to each other, the cam system abuts the first surface, and the spring is biased to the second surface When the cam rotates to reciprocate the abutting portion, the paper pushing portion intermittently protrudes from the roller portion, and 'pushes the printed paper sheet out of the paper discharge roller 10 wheel. 13. The printer of claim 11, wherein the paper pushing portion comprises an upper paper pushing body and a lower paper pushing body, wherein the upper pushing paper body and the lower pushing paper body are connected to the first And the upper pusher and the pusher paper respectively have a circular arc shape and surround the shaft portion, and the push paper system intermittently protrudes from the roller portion to push the printed paper to be printed Get out of the paper exit roller. 14. The printer of claim 13, wherein the upper surface of the paper body is jagged. 0535-A21851TWF(N2)；F05068；CHENTF 160535-A21851TWF(N2); F05068; CHENTF 16
TW095141153A 2006-11-07 2006-11-07 Paper kicker for exit roller and printer utilizing the same TW200821159A (en)

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