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TW201024102A - Pickup device of paper feeding apparatus - Google Patents

Pickup device of paper feeding apparatus Download PDF

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Publication number
TW201024102A
TW201024102A TW97151587A TW97151587A TW201024102A TW 201024102 A TW201024102 A TW 201024102A TW 97151587 A TW97151587 A TW 97151587A TW 97151587 A TW97151587 A TW 97151587A TW 201024102 A TW201024102 A TW 201024102A
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TW
Taiwan
Prior art keywords
paper
ratchet
feeding device
wheel
rotate
Prior art date
Application number
TW97151587A
Other languages
Chinese (zh)
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TWI342833B (en
Inventor
Ping-Hong Kuo
Original Assignee
Teco Image Sys Co Ltd
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Application filed by Teco Image Sys Co Ltd filed Critical Teco Image Sys Co Ltd
Priority to TW97151587A priority Critical patent/TWI342833B/en
Publication of TW201024102A publication Critical patent/TW201024102A/en
Application granted granted Critical
Publication of TWI342833B publication Critical patent/TWI342833B/en

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Abstract

A pickup device of a paper feeding apparatus is provided. The pickup device includes a separation roller with a wheel member and a teeth member; a delay gear engaged to the teeth member and having a block; a first ratchet with a limiting slot for placing the block; and a second ratchet engaged to the first ratchet to drive the first ratchet to rotate, and the limiting slot of the first ratchet pushes the block to drive the delay gear to rotate. When a paper moves to drive the separation roller to rotate, the teeth member of the separation roller drives the delay gear to rotate, and the block of the delay gear pushes the limiting slot of the first ratchet to rotate and to remove the engagement of the second ratchet.

Description

201024102 六、發明說明: 【發明所屬之技術領域】 本發明係有關於一種取紙機構,特別是一種饋紙裝置之取紙機構。 【先前技術】 隨著科技的日新月異,電腦週邊相關的事務機器,如印表機、影印機、 掃描器、傳真機等,可以幫助增進處理資訊的效率,因而也愈來愈普及。 又隨著一機多功能的技術發展,愈來愈多的事務機兼具傳真、掃描、影印 及列印等功能,不但使事務機具有多項文書處理能力,並使得體積變得更 加輕巧,加上組裝步驟簡單,僅需連接電話線、網路線及電源線即可搭配 電腦來使用,因此使得事務機愈來愈受歡迎。 综觀印表機、影印機、掃描器、傳真機等事務機器,均裝設有自動饋 送裝置(Automatic Document Feeder,ADF) ’用以將一疊待處理的紙張逐 -饋入機林體巾進行處理。習用自練送裝置的取紙機構,會於其取紙 轴上套設順時針方向扭簧離合器(〇ne way du⑻與逆時針方向扭菁離合 ❹器。當取紙軸受顧時針方向之麟力而轉動時,_針方向扭簧離合器 内L縮小並產生扭緊伽,使其與取紙轴之間的摩擦力增加,當增加之摩 擦力大於整個取紙機構之取紙臂轉動所需的扭動力時,取紙轴之轉動動力 可I由順時針方向扭簧離合器傳送至取赠,進而帶動取紙臂作順時針方 向旋轉以接觸紙張。反之,當取錄受到逆時針方向之_力而轉動時, 逆時針方向扭簧離合器内徑縮小並產生扭緊作用,藉以帶動取紙臂轉動並 離開紙張。 然,習用自動饋送裝置的取紙機構以扭簧内徑縮小所產生摩擦力能提 201024102 供取紙臂轉動之扭力,因此扭簧之扭雜度驗必_當精確,不僅使得 製造成本較為高吊,且不同規格的取紙機構必須採用不同扭緊程度的扭 簧’相當麻煩’此外,當扭簧發生彈性疲乏時,其修復之成本亦較高;再 者’别述之扭簧離合器(one way clutch)均為為單向作用因此必須兩組 以上之扭簧離合器來才能達到取紙臂雙向轉動之功能。 【發明内容】 有鑑於此,本發明提供一種饋紙裝置之取紙機構,包含:分紙輪,包 ❹含輪部與齒部;延遲齒輪,4合於卿,包含凸塊;第-棘輪,包含限位 槽’用以收容凸塊;及第二棘輪,嗜合於第一棘輪,用以帶動第一棘輪轉 動並經由第一棘輪之限位槽推動凸塊使延遲齒輪轉動,當紙張帶動分紙 輪旋轉’經由齒部帶動延遲齒輪轉動,以延遲齒輪之凸塊推動限位槽使第 一棘輪轉動並脫離嚙合第二棘輪。 本發明亦提供一種饋紙裝置之取紙機構’包含:取紙座,包含相對之 固定端與自由端;分紙輪,位於取紙座之固定端,包含輪部與齒部;延遲 Φ 齒輪’嚙合於齒部,包含凸塊;第一棘輪,包含限位槽,用以收容凸塊; 及第二棘輪,嚙合於第一棘輪,用以帶動第一棘輪轉動,並經由第一棘輪 之限位槽推動凸塊使延遲齒輪轉動,以帶動取紙座之自由端旋轉,當紙張 帶動分紙輪旋轉,經由齒部帶動延遲齒輪轉動,以延遲齒輪之凸塊推動限 位槽使第一棘輪轉動並脫離嚙合第二棘輪。 本發明以單向之第一棘輪與第二棘輪相嚙合’當第二棘輪嚙合於第一 棘輪並帶動第一棘輪轉動時,可同時推動凸塊使延遲齒輪轉動’藉以帶動 取紙座之自由端旋轉而進行取紙動作。當紙張帶動分紙輪旋轉,同時帶動 201024102 延遲齒輪轉動,由於其旋轉速度大於第二棘輪之轉動速度,因此可以延遲 齒輪之凸塊推動第一棘輪轉動而脫離嗔合第二棘輪,此時取紙座之自由端 旋轉復位。於紙張離開分紙輪後,分紙輪失去動力而不再帶動延遲齒輪轉 動’待第二棘輪再次嚙合於第一棘輪並帶動第一棘輪轉動,反覆前述步驟 使兩張紙張在傳送時拉開間隔,而不會造成兩張紙張連續傳送不間斷。本 •發明不僅所需組件少、結構相當地簡單,並具有製造成本低廉之優點。 有關本發明的較佳實施例及其功效’茲配合圖式說明如後。 φ 【實施方式】 請參照第1A囷、第1B圖與第2A圖為本發明所揭露之饋紙裝置之取 紙機構。 饋紙裝置之取紙機構1包含:取紙座1〇、分紙輪21、延遲齒輪3〇、第 一棘輪40、第二棘輪50。 取紙座10為一中空狀之座體,具有相對之固定端1〇a與自由端1〇b, 其中,自由端10b可以固定端i〇a為中心旋轉。此外,取紙座1〇於其中一 〇側壁面設置有彈性件11,藉由彈性件11之彈力支撐取紙座10。 分紙輪(separationmller) 2卜位於取紙座1〇内並設置於取紙座1〇之 固定端l〇a處,主要可由輪部211與齒部212所組成,其中,齒部212由 複數嚙齒所組成,並設置於輪部211側邊,使齒部212位於輪部211與取 紙座10之間。 於前述說明巾’本㈣更可於取紙座1G之自由端⑽處設置取紙輪 (pickroller) 22,當傳送輪(圖未示)傳送紙張9至取紙輪22後,經由取 紙輪22將紙張9傳送至分紙輪21進行出紙動作。 201024102 延遲齒輪(也吻868〇30位於取紙座1〇内並設置於分紙輪21之侧邊, 其具有複數嚙齒並可嚙合於分紙輪21之齒部212,再者,延遲齒輪30於複 數嚙齒之側邊設有凸塊31。 第一棘輪40位於取紙座10内並設置於延遲齒輪3〇之側邊,其一側設 有複數第一棘齒41 ’另一側設有限位槽42,用以收容延遲齒輪3〇之凸塊 3卜 第二棘輪5〇位於取紙座10内並設置於第一棘輪40之侧邊,其一側設 φ 有複數第二棘齒51,其中,複數第二棘齒51對應第一棘輪40之複數第一 棘齒41設置’並可嚙合於複數第一棘齒41,並可藉由第二棘輪5〇被轉動 而帶動第一棘輪40轉動’並經由第一棘輪4〇之限位槽42推動遲齒輪30 之凸塊31使延遲齒輪30轉動。 於前述說明中,第一棘輪40與第二棘輪50較佳地可為單向棘輪,但 非以此為限,在此,第一棘輪40之第一棘齒41設有第一抵靠面411與第 一傾斜面412 ’第一抵靠面411實質上平行於第一棘輪40之轴向方向,且 ® 第一抵靠面411與第一傾斜面412之間呈一銳角;第二棘輪5〇之第二棘齒 51設有第二抵靠面511與第二傾斜面512,第二抵靠面511實質上平行於 第二棘輪50之軸向方向,且第二抵靠面511與第二傾斜面512之間呈一銳 角》 本發明更可包含:傳動模組60,用以提供第二棘輪50轉動之動力源, 其主要可由傳送單元61與主動齒輪62所組成,在此,第二棘輪5〇可設有 從動齒輪52 ’且從動齒輪52嚙合於主動齒輪62,當傳送單元61帶動主動 齒輪62轉動時’同時以主動齒輪62帶動從動齒輪52轉動而使第二棘輪5〇 201024102 轉動。 請參閱第1圖、第2A圖、第2B圖、第2C圖及第2D圖所示,傳動模 組60之傳送單元61持續帶動主動齒輪62轉動,並以主動齒輪62帶動從 動齒輪52轉動而使第二棘輪5〇轉動,此時由於第一棘輪4〇之第一抵靠面 411抵靠第二棘輪50之第二抵靠面511,使第一棘輪40之第一棘齒41與 第二棘輪50之第二棘齒5〗相嚙合,因此可藉由第二棘輪5〇轉動而帶動第 一棘輪40轉動。於第一棘輪40轉動時,以其限位槽42之壁面推動延遲齒 ❹ 輪30之凸塊31,使延遲齒輪30隨著第一棘輪40轉動而轉動。 在此,由於第一棘輪40帶動延遲齒輪30轉動之力大於彈性件u支標 取紙座ίο之力,因而可帶動取紙座10之自由端10b以固定端1〇a為中心 旋轉,帶動取紙輪22下降而接觸傳送輪所傳送之紙張9 ,並經由取紙輪22 將紙張9傳送至分紙輪21。 當紙張9傳送至分紙輪21後,經由紙張9之位移而帶動分紙輪21旋 轉’由於第二棘輪50之轉動速度小於分紙輪21受紙張9帶動之旋轉速度, ®因此第二棘輪50不再帶動第一棘輪40轉動,即可藉由彈性件u之彈力支 撐取紙座10,使取紙座10之自由端10b以固定端1〇a為中心旋轉復位,並 帶動取紙輪22上升’即完成取紙(picj^jp)之動作。 取紙(pickup)力量及動作說明·· 齒輪62/52/30及與分紙滾輪21 —鱧之齒輪212構成一回歸輪係,而其 中取紙座10為擺臂。 此輪係之輪係值e為 ni~a z52. Z212 7 >1 201024102 分紙滾輪21之轉速; 輸入齒輪62之轉速; π取紙座10(擺臂)之轉速; ^62, Ζ52,Ζ2Λ2,分別為齒輪 62、52、30 及 212 之齒數。 •狀態1 : 輸入齒輪開始轉動,此時因分止滚輪21與分紙摩擦片接觸因高的摩擦 係數,使得分止滾輪並未開始轉動既= 0,此時取紙座的轉速。 ® 0-α e —- nt—a _α) = _Λ a(e-1) = en a-—->1 e-1 取紙座的轉速α>1,亦既取紙座將以同輸入齒輪轉動方向以a的轉速轉 動,亦既如圖2B所示,取紙系開始取紙。 ❿狀態2: 〇 當取紙成功後紙張被取紙滾輪22帶動,紙張前緣進入分紙滚輪與分紙片間 的掐合區(nip area)。因分紙滚輪與紙張的摩擦係數小於分紙滚輪與分紙片 間的係數因此分紙滚輪的拘束減小,因而開始轉動。 在分紙滾輪開始轉動後,既关0,此時取紙座的轉速〆成為: 0 %-α’ e =—-- nk ~af Φί-α') = ηψ-α' a\e-\) = eni-nsp201024102 VI. Description of the Invention: [Technical Field] The present invention relates to a paper take-up mechanism, and more particularly to a paper take-up mechanism of a paper feeding device. [Prior Art] With the rapid development of technology, related computer peripherals such as printers, photocopiers, scanners, and fax machines can help improve the efficiency of processing information, and thus become more and more popular. With the development of a multi-functional technology, more and more business machines have functions such as fax, scanning, photocopying and printing, which not only enables the transaction machine to have multiple document processing capabilities, but also makes the volume more compact. The assembly process is simple, and only needs to be connected to a telephone line, a network route, and a power cord to be used with a computer, thus making the transaction machine more and more popular. Looking at printers, photocopiers, scanners, fax machines, etc., all equipped with Automatic Document Feeder (ADF) 'to feed a stack of paper to be processed into the machine body towel Process it. The paper pick-up mechanism of the self-training device will set a clockwise torsion spring clutch on the paper take-up shaft (〇ne way du (8) and counterclockwise twisting clutch clutch. When the paper take-up shaft is taken care of by the needle direction When rotating, the _needle direction torsion spring clutch L is reduced and produces a twisting gamma, which increases the friction between the paper and the pick-up shaft, and the increased friction force is greater than the rotation of the pick-up arm of the entire paper take-up mechanism. When the power is twisted, the turning power of the paper take-up shaft can be transmitted to the take-up by the clockwise torsion spring clutch, and then the pick-up arm is rotated clockwise to contact the paper. Conversely, when the recording is counterclockwise, the force is counter-clockwise. When rotating, the counterclockwise torsion spring clutch has a reduced inner diameter and a tightening action, thereby driving the pickup arm to rotate and leaving the paper. However, the paper-feeding mechanism of the conventional automatic feeding device can reduce the frictional force generated by the inner diameter of the torsion spring. The 201024102 provides the torque for the rotation of the paper arm, so the torsion of the torsion spring must be accurate, not only makes the manufacturing cost higher, but the paper picking mechanism of different specifications must be twisted with different degrees of tightening. 'Too troublesome' In addition, when the torsion spring is elastically fatigued, the cost of repairing it is also higher; in addition, the one way clutch is a one-way action, so two or more torsion springs must be used. In view of the above, the present invention provides a paper take-up mechanism of a paper feeding device, comprising: a paper separation wheel including a wheel portion and a tooth portion; a delay gear, 4 in Qing, comprising a bump; a first - ratchet, including a limiting slot for receiving the bump; and a second ratchet, fitting with the first ratchet for driving the first ratchet and passing the first ratchet The slot pushes the bump to rotate the delay gear, and when the paper drives the separation roller to rotate, the delay gear rotates via the tooth portion, so that the bump of the gear pushes the limit slot to rotate the first ratchet and disengage the second ratchet. A paper feeding mechanism of a paper feeding device is also provided, comprising: a paper taking seat comprising opposite fixed ends and free ends; a paper separating wheel located at a fixed end of the paper taking seat, comprising a wheel portion and a tooth portion; a delay Φ gear 'engagement The first ratchet includes a limiting slot for receiving the bump; and the second ratchet is engaged with the first ratchet for driving the first ratchet to rotate and is limited by the first ratchet The groove pushes the bump to rotate the delay gear to drive the free end of the paper take-up seat to rotate, and when the paper drives the paper separation wheel to rotate, the gear is rotated by the tooth to delay the rotation of the gear to delay the gear to push the limit groove to rotate the first ratchet And disengaging the second ratchet. The present invention engages the first ratchet with the second ratchet. When the second ratchet engages the first ratchet and drives the first ratchet to rotate, the bump can be simultaneously pushed to rotate the delay gear. The paper takes the free end of the paper take-up to rotate the paper to take the paper. When the paper drives the separation roller to rotate and drives the 201024102 to delay the rotation of the gear, since the rotation speed is greater than the rotation speed of the second ratchet, the gear can be delayed. The first ratchet rotates away from the second ratchet, and the free end of the paper take-up is rotated and reset. After the paper leaves the separation roller, the separation roller loses power and no longer drives the delay gear to rotate. 'After the second ratchet re-engages with the first ratchet and drives the first ratchet to rotate, the foregoing steps reverse the two sheets of paper during transport. Interval, without causing two sheets of paper to continue uninterrupted. The invention not only requires fewer components, is relatively simple in structure, but also has the advantages of low manufacturing cost. DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention and their effects are described below. φ [Embodiment] Please refer to Figs. 1A, 1B and 2A for the paper take-up mechanism of the paper feeding device disclosed in the present invention. The paper take-up mechanism 1 of the paper feeding device includes a paper take-up holder 1, a paper feed wheel 21, a delay gear 3, a first ratchet 40, and a second ratchet 50. The paper take-up base 10 is a hollow seat body having opposite fixed ends 1〇a and free ends 1〇b, wherein the free end 10b is rotatable about the fixed end i〇a. Further, the paper take-up seat 1 is provided with an elastic member 11 on one of the side wall faces, and the paper take-up seat 10 is supported by the elastic force of the elastic member 11. A separating wheel (2) is disposed in the pick-up seat 1 并 and is disposed at the fixed end 10a of the pick-up seat 1 ,, and can be composed mainly of the wheel portion 211 and the tooth portion 212, wherein the tooth portion 212 is composed of a plurality of teeth 212 The rods are formed and disposed on the side of the wheel portion 211 such that the tooth portion 212 is located between the wheel portion 211 and the paper take-up base 10. In the foregoing description towel (4), a pickup roller 22 may be disposed at the free end (10) of the paper take-up seat 1G, and after the transfer wheel (not shown) conveys the paper 9 to the pickup roller 22, the pickup roller is passed through the pickup roller. 22 The paper 9 is conveyed to the separation roller 21 to perform a paper discharge operation. 201024102 The delay gear (also kiss 868 〇 30 is located in the paper take-up seat 1 并 and is disposed on the side of the paper separation wheel 21 , which has a plurality of teeth and can be engaged with the tooth portion 212 of the paper separation wheel 21 , and further, the delay gear 30 A bump 31 is disposed on a side of the plurality of rods. The first ratchet 40 is disposed in the paper take-up base 10 and disposed on a side of the delay gear 3〇, and has a plurality of first ratchet teeth 41 on one side and a limit on the other side. The bit groove 42 is for receiving the bump 3 of the delay gear 3, and the second ratchet 5 is located in the paper take-up base 10 and disposed on the side of the first ratchet 40, and has one side φ and a plurality of second ratchets 51. Wherein the plurality of second ratchets 51 are disposed corresponding to the plurality of first ratchets 41 of the first ratchet 40 and engageable with the plurality of first ratchets 41, and can be driven by the second ratchet 5〇 to drive the first ratchet 40 rotates 'and pushes the bump 31 of the late gear 30 via the limit slot 42 of the first ratchet 4 to rotate the delay gear 30. In the foregoing description, the first ratchet 40 and the second ratchet 50 are preferably one-way. a ratchet, but not limited thereto, wherein the first ratchet 41 of the first ratchet 40 is provided with a first abutting surface 411 and a first inclined surface 4 12' the first abutment surface 411 is substantially parallel to the axial direction of the first ratchet 40, and the first abutment surface 411 and the first inclined surface 412 form an acute angle; the second ratchet 5 〇 the second spine The tooth 51 is provided with a second abutting surface 511 and a second inclined surface 512. The second abutting surface 511 is substantially parallel to the axial direction of the second ratchet 50, and the second abutting surface 511 and the second inclined surface 512 The present invention may further include: a transmission module 60 for providing a power source for rotating the second ratchet 50, which may be mainly composed of a transmission unit 61 and a driving gear 62, where the second ratchet 5 The driven gear 52' is provided and the driven gear 52 is meshed with the driving gear 62. When the transmitting unit 61 drives the driving gear 62 to rotate, the driving gear 52 is driven by the driving gear 62 to rotate the second ratchet 5〇201024102. Referring to FIG. 1 , FIG. 2A , FIG. 2B , FIG. 2C and FIG. 2D , the transmission unit 61 of the transmission module 60 continuously drives the driving gear 62 to rotate, and drives the driven gear 52 to rotate by the driving gear 62 . And rotating the second ratchet 5〇, at this time due to the first abutment surface of the first ratchet 4〇 The second ratchet 41 of the first ratchet 40 is engaged with the second ratchet 5 of the second ratchet 50 by the second abutment surface 511 of the second ratchet 50, and thus can be engaged by the second ratchet 5 Rotating to drive the first ratchet 40 to rotate. When the first ratchet 40 rotates, the bump 31 of the delaying sprocket wheel 30 is pushed by the wall surface of the limiting slot 42 to rotate the delay gear 30 as the first ratchet 40 rotates. Here, since the first ratchet 40 drives the delay gear 30 to rotate more than the force of the elastic member u, the free end 10b of the paper take-up base 10 can be rotated around the fixed end 1〇a. The pickup roller 22 is lowered to contact the sheet 9 conveyed by the transfer wheel, and the sheet 9 is conveyed to the separation roller 21 via the pickup roller 22. When the paper 9 is conveyed to the separation roller 21, the separation roller 21 is rotated by the displacement of the paper 9 'Because the rotation speed of the second ratchet 50 is smaller than the rotation speed of the separation roller 21 by the paper 9, the second ratchet 50, the second ratchet 40 is no longer driven to rotate, and the paper take-up seat 10 can be supported by the elastic force of the elastic member u, so that the free end 10b of the paper take-up seat 10 is rotated and reset around the fixed end 1〇a, and the pickup roller is driven. 22 rises 'that is the action of picking up the paper (picj^jp). Pickup Force and Action Description·· Gear 62/52/30 and gear 212 that is separate from the separation roller 21 constitute a return train, and the paper take-up 10 is a swing arm. The wheel train value e of this wheel train is ni~a z52. Z212 7 >1 201024102 The speed of the separation roller 21; the rotation speed of the input gear 62; the rotation speed of the π paper take-up seat 10 (swing arm); ^62, Ζ52, Ζ2Λ2, the number of teeth of gears 62, 52, 30 and 212, respectively. • State 1: The input gear starts to rotate. At this time, due to the high friction coefficient caused by the contact roller 21 and the separation roller, the roller does not start to rotate = 0, and the rotation speed of the paper holder is taken. ® 0-α e —- nt—a _α) = _Λ a(e-1) = en a-—->1 e-1 The speed of the paper holder α>1 also takes the same input as the paper holder The direction of rotation of the gear is rotated at a rotation speed of a, and as shown in Fig. 2B, the paper take-up mechanism starts to take the paper. ❿State 2: 纸张 When the paper is taken successfully, the paper is driven by the pickup roller 22, and the leading edge of the paper enters the nip area between the separation roller and the separation sheet. Since the friction coefficient between the separation roller and the paper is smaller than the coefficient between the separation roller and the separation sheet, the restriction of the separation roller is reduced, and thus the rotation starts. After the separation roller starts rotating, it is closed to 0, and the rotation speed of the paper take-up 〆 becomes: 0 %-α' e =—-- nk ~af Φί-α') = ηψ-α' a\e-\ ) = eni-nsp

201024102 亦既,當分紙滾輪開始轉動時取紙座的轉速a,小於分紙滾輪在該開始取紙 前靜止狀態下的轉速a。亦既在分紙滾輪開始轉動時,彈力元件u可將取 紙座拉回其原始位置,如圖2D所示。 此既為取紙系取紙力量的及動作說明。 請參閱第1圖、第3A圖及第3B圖所示,當第一棘輪4〇之第一棘齒 • 41與第二棘輪50之第二棘齒51相唾合時,第一棘輪4〇之第一抵靠面4ΐι 抵靠第二棘輪50之第二抵靠面51 i,藉此可由第二棘輪5〇轉動而帶動第一 籲棘輪4G轉動》當紙張9帶動分紙輪21旋轉,由於分紙輪21受紙張9帶動 之旋轉速度大於^概5G之_速度,因歧由分_ 21之齒部212 帶動延遲齒輪30轉動,而非以第一棘輪4〇帶動延遲齒輪%轉動,此時, 延遲齒輪30之凸塊31抵推第一棘輪4〇之限位槽42的壁面,藉以帶動第 -棘輪40轉動,第-棘輪4〇之第一傾斜面412抵靠第二棘輪5〇之第二傾 斜面5丨2且第傾斜面1〗2沿著第二傾斜面犯移動而使第一棘輪之 第-棘齒脫離靖合第二棘輪5〇之第二棘齒51,使得第二棘輪5〇不再帶動 〇第-棘輪40轉動。當紙張9離開分紙輪?!使分紙㈣停止旋轉後,第二 棘輪5〇藉由轉動而重新續合於第一棘輪I使第一棘輪*之第一抵靠面 再人抵靠第一棘輪5〇之第二抵靠面如,並使第二棘輪%再次帶動第 棘輪40轉動因此,藉由本發明所揭露之結構可達成超越(〇卿) 的功能。 請參閲第1圖、第4A圖、笛州 第4B圖及第4C圖所示,於紙張9尚未帶 動刀紙輪21旋轉’以第二棘輪5〇帶動第一棘輪轉動並經由第一棘輪 1 〇之限位槽42的錢推動延遲齒輪邓之凸塊3卜使延遲齒輪賴著第 201024102 一棘輪40轉動而轉動,在第一棘輪40帶動延遲齒輪3〇轉動過程中,凸塊 31右邊與限位槽42的另一壁面維持角度(如第3A圖所示)。當紙張9 開始帶動分紙輪21旋轉,由於分紙輪21受紙張9帶動之旋轉速度大於第 二棘輪50之轉動速度,因此改由分紙輪21之齒部212帶動延遲齒輪30轉 動’在此轉動過程中,凸塊31因其轉動速度較快而在其左手邊產生匕角度 (如第3B圖所示),並隨著其轉動&角度逐漸增大,直到凸塊31抵靠限位 槽42的另一壁面使e!角度為〇,凸塊31左手邊與限位槽42的壁面產生% ❹角度(如第3C圖所示)’此時,延遲齒輪30之凸塊31抵推第一棘輪40之 限位槽42的壁面而帶動第一棘輪40轉動,直到紙張9脫離分紙輪21而不 再帶動分紙輪21旋轉。 备紙張9離開分紙輪21後,分紙輪21不再帶動延遲齒輪3〇轉動,使 凸塊31靜止不動,由於傳動模組6〇持續帶動第二棘輪轉動並帶動第 -棘輪40轉動’使得第一棘輪4〇之限位槽42的壁面逐漸接近延遲齒輪3〇 之凸塊3卜直到%角度為〇時限位槽a的壁面再次抵靠延遲盘輪之凸 _塊31,即可以第一棘輪40再次帶動延遲齒輪30轉動。 在前述過程中’當紙張9通過分紙輪21時,凸塊31左手邊與限位槽 42的壁面產生θ3角度’在紙張9離開分紙輪21後鳴角度會逐漸減小至〇 為止,在θ3角度逐漸減小的這段時間,取紙輪22並不會傳送另一紙張9至 分紙輪2卜使兩張紙張9在傳送時拉開間隔而達成延遲㈤町)之目的。 本發明藉_當_單之結構,即可同時具有取紙(piekup)、超越 g)及延遲(delay)等三個功能,不僅所需組件少,並具有製造成本 低廉之優點。料,本發赂待__场,其第―棘_二棘輪 201024102 =:較久,於待傳送紙_、時,其第-棘輪與第二_離 時間較短’無論待傳送之紙張大小為何,在不改變限位槽之大小的 情況下’祕峨的舰咖均為岭,因科僅可料烟之便繼, 製造時也不需準備具有不同大小之限位槽的第—棘輪,有效增加備料之簡 易度。 雖然本發日技術内容已經以較佳實施例揭露如上,然其並非用以限 疋本發明,任何熟習此技藝者,在不脫離本發明之精神所作些許之更動與 _ 潤飾’皆應涵蓋於本發明的範疇内,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。201024102 Also, the rotational speed a of the paper take-up when the separation roller starts to rotate is smaller than the rotational speed a of the separation roller in the stationary state before the start of the paper take-up. Also, as the separation roller starts to rotate, the elastic member u can pull the pickup holder back to its original position, as shown in Fig. 2D. This is both the paper extraction force and the action description. Referring to FIG. 1 , FIG. 3A and FIG. 3B , when the first ratchet 41 of the first ratchet 4 唾 is in contact with the second ratchet 51 of the second ratchet 50 , the first ratchet 4 〇 The first abutting surface 4ΐ abuts against the second abutting surface 51 i of the second ratchet 50, whereby the first ratchet wheel 4G can be rotated by the rotation of the second ratchet 5〇” when the paper 9 drives the separation roller 21 to rotate, Since the rotation speed of the separation roller 21 by the paper 9 is greater than the speed of the 5G, the tooth portion 212 of the minute _ 21 drives the delay gear 30 to rotate, instead of the first ratchet 4 〇 driving the delay gear % rotation. At this time, the bump 31 of the delay gear 30 abuts against the wall surface of the limiting slot 42 of the first ratchet 4〇, thereby driving the first ratchet 40 to rotate, and the first inclined surface 412 of the first ratchet 4〇 abuts against the second ratchet 5 The second inclined surface 5丨2 and the inclined surface 1′2 move along the second inclined surface to disengage the first ratchet of the first ratchet from the second ratchet 51 of the second ratchet 5〇 The second ratchet 5〇 no longer drives the first-ratchet 40 to rotate. When the paper 9 leaves the separation roller? ! After the paper (4) is stopped from rotating, the second ratchet 5 重新 is renewed by the rotation to the first ratchet I, so that the first abutment surface of the first ratchet * is again abutted against the second ratchet 5 抵For example, and the second ratchet % causes the ratchet wheel 40 to rotate again, the function of the present invention can be achieved by the structure disclosed in the present invention. Referring to FIG. 1 and FIG. 4A, and FIG. 4B and FIG. 4C, the paper 9 has not been driven to rotate the paper cutter wheel 21. The second ratchet wheel 5 turns the first ratchet wheel to rotate and passes through the first ratchet wheel. 1 〇 限 限 的 的 的 的 的 的 的 的 的 42 42 42 42 42 42 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓 邓The other wall surface of the limiting groove 42 is maintained at an angle (as shown in FIG. 3A). When the paper 9 starts to rotate the separation roller 21, since the rotation speed of the separation roller 21 by the paper 9 is greater than the rotation speed of the second ratchet 50, the tooth portion 212 of the separation roller 21 drives the delay gear 30 to rotate. During this rotation, the bump 31 generates a 匕 angle on its left hand side due to its faster rotation speed (as shown in FIG. 3B), and gradually increases with its rotation & angle until the bump 31 abuts the limit. The other wall surface of the bit groove 42 has an e! angle of 〇, and the left hand side of the bump 31 and the wall surface of the limiting groove 42 generate a % ❹ angle (as shown in FIG. 3C). At this time, the bump 31 of the delay gear 30 abuts. Pushing the wall surface of the limiting groove 42 of the first ratchet 40 causes the first ratchet 40 to rotate until the paper 9 is separated from the separation roller 21 and no longer drives the separation roller 21 to rotate. After the paper 9 leaves the separation roller 21, the separation roller 21 no longer drives the delay gear 3〇 to rotate, so that the projection 31 is stationary, because the transmission module 6〇 continuously drives the second ratchet to rotate and drives the first-ratchet 40 to rotate. The wall surface of the limiting groove 42 of the first ratchet wheel 4 is gradually approached to the convex block 3 of the delay gear 3〇 until the % angle is 〇, the wall surface of the limiting groove a again abuts against the convex block 31 of the retarding disk wheel, that is, the first A ratchet 40 again drives the delay gear 30 to rotate. In the foregoing process, when the paper 9 passes through the separation roller 21, the left hand side of the bump 31 and the wall surface of the limiting groove 42 generate an angle θ3'. After the paper 9 leaves the paper separation wheel 21, the sounding angle is gradually reduced to 〇. During the period in which the angle θ3 is gradually decreased, the pickup roller 22 does not transfer the other paper 9 to the separation roller 2, so that the two sheets of paper 9 are separated by the interval at the time of conveyance to achieve a delay (five). According to the structure of the invention, the three functions of piekup, over g) and delay can be simultaneously provided, which not only requires fewer components, but also has the advantages of low manufacturing cost. Material, this hair is waiting for __ field, its first - spine _ two ratchets 201024102 =: longer, when the paper to be transported _, its first - ratchet and second _ off time is shorter 'no matter the paper size to be transmitted Why, in the case of not changing the size of the limit slot, the secret of the ship is the ridge, and the company can only manufacture the first ratchet with different size slots. , effectively increase the ease of preparation. Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and any modifications and simplifications that should be made by those skilled in the art without departing from the spirit of the invention should be Within the scope of the invention, the scope of the invention is therefore defined by the scope of the appended claims.

11 201024102 【圖式簡單說明】 第1A圖為本發明之外觀示意圖。 第1B圖為本發明之局部放大示意圖。 第2A圖為本發明於取紙時之示意圖(一)。 第2B圖為本發明於取紙時之示意圖(二)。 第2C圖為本發明於取紙時之示意圖(三)。 第2D圖為本發明於取紙時之示意圖(四)。 第3A圖為本發明於超越時之示意圖(一)。11 201024102 [Simple description of the drawings] Fig. 1A is a schematic view showing the appearance of the present invention. Fig. 1B is a partially enlarged schematic view of the present invention. Fig. 2A is a schematic view (1) of the present invention at the time of paper taking. Figure 2B is a schematic view (2) of the present invention when taking paper. Figure 2C is a schematic view (3) of the present invention when taking paper. Fig. 2D is a schematic view (4) of the present invention when taking paper. Fig. 3A is a schematic view (1) of the invention in the case of transcendence.

第3B圖為本發明於超越時之示意圖(一)。 第4A圖為本發明於延遲時之示意圖(一)。 第4B圖為本發明於廷遲時之示意圖(二)。 第4C圖為本發明於延遲時之示意圖(三)。 【主要元件符號說明】 I ..............取紙機構 10..............取紙座 10a.............固定端 l〇b.............自由端 II ..............彈性件 21 ..............钱輪 211 .............輪部 212 .............齒部 22 ..............取紙輪 12 201024102 30 ..............延遲齒輪 31 ..............凸塊 40 · .............第一棘輪 41 ..............第一棘齒 411 .............第一抵靠面 412 .............第一傾斜面 42 ..............限位槽Fig. 3B is a schematic view (1) of the invention in the case of transcendence. Fig. 4A is a schematic view (1) of the present invention at the time of delay. Figure 4B is a schematic view (II) of the invention in the late tenth. Figure 4C is a schematic diagram (3) of the invention in the case of delay. [Description of main component symbols] I..............Picking mechanism 10..............Picking paper holder 10a....... ... fixed end l〇b............. free end II..............elastic part 21 ...... ........钱轮211.............wheel 212.............tooth 22 ....... .......take the paper wheel 12 201024102 30 ..............delay gear 31 ..............bump 40 · .. ...........first ratchet 41 ..............first ratchet 411 .............first arrival Back surface 412 ............. First inclined surface 42 .............. Limiting groove

50 ..............第二棘輪 51 ..............第二棘齒 511 .............第二抵靠面 512 .............第二傾斜面 52 ..............動齒輪 60 ..............傳動模組 61 · · · ...........傳送單元 62 ..............主動齒輪 9..............紙張 1350 ..............Second ratchet 51 ..............Second ratchet 511 ............ The second abutment surface 512.............the second inclined surface 52..............dynamic gear 60........ ... drive module 61 · · · ........... transfer unit 62 .............. drive gear 9... ........paper 13

Claims (1)

201024102 七、申請專利範圍: 1、 一種饋軼裝置之取紙機構,包含·· 一分紙輪,包含一輪部與一齒部; 一延遲齒輪,嚙合於該齒部,包含一凸塊; 一第一棘輪,包含一限位槽,用以收容該凸塊;及 "第二棘輪,嚙合於該第一棘輪,用以帶動該第一棘輪轉動,並經 由該第一棘輪之該限位槽推動該凸塊使該延遲齒輪轉動,當一紙張帶動 ❹ 該分紙輪旋轉,經由該齒部帶動該延遲齒輪轉動,以該延遲齒輪之該凸 塊推動該限位槽使該第一棘輪轉動並脫離嚙合該第二棘輪。 2、 如請求項1之饋紙裝置之取紙機構,更包含:一傳動模組,用以帶動該 第二棘輪轉動。 3、 如凊求項2之饋紙裝置之取紙機構,其中該傳動模組包含一主動齒輪, 該第二棘輪包含一從動齒輪,該從動齒輪嚙合於該主動齒輪。 4、 如請求項2之饋紙裝置之取紙機構’其中該紙張離開該分紙輪使該分紙 〇 輪停止旋轉後,該第二棘輪藉由轉動而重新嚙合於該第一棘輪。 5、 如請求項2之饋紙裝置之取紙機構,其中該第二棘輪之轉動速度小於該 分紙輪受該紙張帶動之旋轉速度。 6、 如請求項1之饋紙裝置之取紙機構,更包含:一取紙輪,用以傳送該紙 張至該分紙輪。 7、 如請求項6之館紙裝置之取紙機構’更包含:一取紙座,包含相對之一 固定端與一自由端,該固定端用以設置該分紙輪,該自由端用以設置該 取紙輪。 201024102 一彈性件,用以支撐該取 8、如請求項7之饋紙裝置之取紙機構,更包含. 紙座0 9、 如請求項8之饋紙裝置之取紙機構,其拎[祕㈣觀遲齒輪轉 動之力大於該彈性件支撐該取紙座之力。 10、 如請求項1之饋紙裝置之取紙機構,其中該第一棘輪包含複數第^棘 齒’第二棘輪包含複數第二棘齒’該些第二棘齒對應該些第一棘逾設 置。 ❿11、如請求項10之餚紙裝置之取紙機構,其中該第一棘齒包含—第一抵靠 面’該第二棘齒包含一第二抵靠面’於該第二抵靠面抵靠於該第一抵 靠面時,該第二棘輪嚙合於該第一棘輪並帶動該第一棘輪轉動。 12、 如請求項10之饋紙裝置之取紙機構,其中該第一棘齒包含一第一傾斜 面’該第二棘齒包含一第二傾斜面,於該第二傾斜面抵靠於該第一傾 斜面時’該第一棘輪藉由轉動而脫離嚙合該第二棘輪。 13、 一種饋紙裝置之取紙機構,包含: © —取紙座,包含相對之一固定端與一自由端; 一分紙輪,位於該取紙座之該固定端,包含輪部與一齒部; 一延遲齒輪,嗤合於該齒部,包含一凸塊; 一第一棘輪,包含一限位槽,用以收容該凸塊;及 一第二棘輪,嚙合於該第一棘輪,用以帶動該第一棘輪轉動,並經 由該第一棘輪之該限位槽推動該凸塊使該延遲齒輪轉動’以帶動該取紙 座之該自由端旋轉,當一紙張帶動該分紙輪旋轉,經由該齒部帶動該延 遲齒輪轉動’以該延遲齒輪之該凸塊推動該限位槽使該第一棘輪轉動並 15 201024102 脫離嚙合該第二棘輪。 】4、如請求们3之饋紙裝置之 該第二棘輪轉動: 更匕含··-傳動模組,用以帶動 如明求項14之饋紙裝置之取紙機構其 該第二棘輪包含一從傳動模組包含-主動裔輪 16、 如請求項14之讀 嘴。找絲齒輪。 料觀謙猶絲輪使該分 Φ 紙輪停止旋轉後,該第二棘輪藉由轉動而重新龄於該第一棘輪。 17、 如請求項14之館祕迪 於 私綠 紙裝置之取紙機構,其中該第二棘輪之轉動速度'ί 4紙輪又該轶張帶動之旋轉速度。 月求項13之饋紙裝置之取紙機構,更包含:一取紙輪,位於該取紙 座之該自由端’用以傳送該紙張至該分紙輪。 如請求項13之饋紙裝置之取紙機構,更包含:一彈性件,用以支樓該 取紙座。 2〇、如請求項19之饋紙裝置之取紙機構,其中該第一棘輪帶動該延遲齒輪 轉動之力大於該彈性件支撐該取紙座之力。 21、 如請求項13之饋紙裝置之取紙機構,其中該第一棘輪包含複數第一棘 齒,第二棘輪包含複數第二棘齒,該些第二棘齒對應該些第一棘齒設 置。 22、 如請求項21之饋紙裝置之取紙機構’其中該第一棘齒包含一第—抵靠 面,該第二棘齒包含一第二抵靠面,於該第二抵靠面抵靠於該第一抵 靠面時,該第二棘輪嚙合於該第一棘輪|帶動該第一棘輪轉動。 23、 如請求項21之饋紙裝置之取紙機構,其中該第一棘齒包含一第一傾斜 16 201024102 面,該第二棘齒包含一第二傾斜面,於該第二傾斜面抵靠於該第一傾 斜面時,該第一棘輪藉由轉動而脫離嚙合該第二棘輪。 參201024102 VII. Patent application scope: 1. A paper feeding mechanism of a feeding device, comprising: a one-point paper wheel, comprising a wheel portion and a tooth portion; a delay gear meshing with the tooth portion, comprising a bump; a first ratchet includes a limiting slot for receiving the bump; and a second ratchet engaged with the first ratchet for driving the first ratchet and passing the limit of the first ratchet The slot pushes the bump to rotate the delay gear. When a paper belt drives the paper separator wheel to rotate, the delay gear rotates through the tooth portion, and the protrusion of the delay gear pushes the limit groove to make the first ratchet wheel Rotating and disengaging the second ratchet. 2. The paper picking mechanism of the paper feeding device of claim 1, further comprising: a driving module for driving the second ratchet to rotate. 3. The paper picking mechanism of the paper feeding device of claim 2, wherein the driving module comprises a driving gear, and the second ratchet comprises a driven gear, the driven gear meshing with the driving gear. 4. The paper picking mechanism of the paper feeding device of claim 2, wherein the second ratchet is re-engaged by the first ratchet by rotating after the paper leaves the paper separating wheel to stop the paper winding wheel. 5. The paper take-up mechanism of the paper feeding device of claim 2, wherein a rotation speed of the second ratchet is smaller than a rotation speed of the paper separation roller driven by the paper. 6. The paper take-up mechanism of the paper feeding device of claim 1, further comprising: a pickup roller for conveying the paper to the paper separation roller. 7. The paper taking mechanism of the library apparatus of claim 6 further comprising: a paper take-up seat, comprising a fixed end and a free end, wherein the fixed end is used for setting the paper separation wheel, and the free end is used for Set the pickup roller. 201024102 An elastic member for supporting the take-up mechanism of the paper feeding device of claim 7, and further comprising: a paper seat 0 9. The paper taking mechanism of the paper feeding device of claim 8 is (4) The force of the rotation of the gear is greater than the force of the elastic member supporting the paper take-up seat. 10. The paper take-up mechanism of the paper feeding device of claim 1, wherein the first ratchet includes a plurality of second ratchets; the second ratchet includes a plurality of second ratchets; the second ratchets correspond to the first plurality of ratchets Settings. The paper picking mechanism of the paper feeding device of claim 10, wherein the first ratchet includes a first abutting surface, the second ratchet includes a second abutting surface, and the second abutting surface is abutted against the second abutting surface When the first abutting surface is against, the second ratchet engages the first ratchet and drives the first ratchet to rotate. 12. The paper picking mechanism of the paper feeding device of claim 10, wherein the first ratchet includes a first inclined surface, the second ratchet includes a second inclined surface, and the second inclined surface abuts the When the first inclined surface is, the first ratchet is disengaged from engaging the second ratchet by rotation. 13. A paper feeding mechanism of a paper feeding device, comprising: a paper take-up seat, comprising a fixed end and a free end; a paper separation wheel located at the fixed end of the paper take-up seat, comprising a wheel portion and a a toothed portion; a delay gear coupled to the tooth portion, including a bump; a first ratchet wheel including a limiting slot for receiving the bump; and a second ratchet engaged with the first ratchet The paper rotates the first ratchet and pushes the bump through the limiting slot of the first ratchet to rotate the delay gear to drive the free end of the paper take-up to rotate. When a paper drives the paper separator Rotating, the delay gear is rotated via the toothing portion. The bump of the delay gear pushes the limiting slot to rotate the first ratchet and disengage the second ratchet from 15 201024102. 4, the second ratcheting of the paper feeding device of the requester 3: a drive module for driving the paper feeding mechanism of the paper feeding device of the item 14 of the present invention, wherein the second ratchet comprises A slave drive module includes an active caster 16, such as the readout of claim 14. Look for the wire gear. When the paper wheel stops rotating, the second ratchet is re-aged by the first ratchet by rotation. 17. The library of claim 14 is a paper pick-up mechanism of the private green paper device, wherein the rotation speed of the second ratchet is ί 4 and the rotation speed of the paper wheel is further increased. The paper take-up mechanism of the paper feeding device of the item 13 further includes: a paper take-up wheel at the free end of the paper take-up seat for conveying the paper to the paper feed wheel. The paper pick-up mechanism of the paper feeding device of claim 13 further comprising: an elastic member for supporting the paper take-up seat. 2. The paper take-up mechanism of the paper feeding device of claim 19, wherein the first ratchet drives the delay gear to rotate more than the elastic member supports the pick-up seat. 21. The paper picking mechanism of the paper feeding device of claim 13, wherein the first ratchet comprises a plurality of first ratchets, and the second ratchet comprises a plurality of second ratchets, the second ratchets corresponding to the first ratchets Settings. 22. The paper picking mechanism of the paper feeding device of claim 21, wherein the first ratchet includes a first abutting surface, the second ratchet includes a second abutting surface, and the second abutting surface abuts When the first abutting surface is against, the second ratchet engages the first ratchet|to drive the first ratchet to rotate. The paper picking mechanism of the paper feeding device of claim 21, wherein the first ratchet includes a first tilt 16 201024102 surface, the second ratchet includes a second inclined surface, and the second inclined surface abuts During the first inclined surface, the first ratchet is disengaged from engaging the second ratchet by rotation. Reference 1717
TW97151587A 2008-12-31 2008-12-31 Pickup device of paper feeding apparatus TWI342833B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8550449B2 (en) 2011-11-22 2013-10-08 Cal-Comp Precision (Singapore) Limited Gear clutch assembly and electronic device using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8550449B2 (en) 2011-11-22 2013-10-08 Cal-Comp Precision (Singapore) Limited Gear clutch assembly and electronic device using the same

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