JP3137976U

JP3137976U - Paper feeder

Info

Publication number: JP3137976U
Application number: JP2007007620U
Authority: JP
Inventors: 岳興李; 少洋呉; 文勝劉
Original assignee: ▲うぇい▼強科技股▲ふん▼有限公司
Priority date: 2007-10-03
Filing date: 2007-10-03
Publication date: 2007-12-13
Anticipated expiration: 2017-10-03

Abstract

【課題】給紙装置のピックアップローラの摩損を減らすと共に、単一紙の給紙の信頼度を増すこと。
【解決手段】ピックアップローラ１００、ピックアップローラの両端の外側に位置する二つの弾性アーム４２０を具えて二つの弾性アームの末端がピックアップローラ表面の弾性アームに近い部分の下方に位置するピックアップ弾性アーム、弾性アームの前方に置かれた分紙片を包含する。弾性アームとピックアップローラが未接触であるため弾性アームがピックアップローラの表面を摩擦せず、これによりピックアップローラの摩損を減らせる。並びに弾性アームがピックアップローラと接触しないため予圧力を弾性アームに作用させる必要がなく、これにより単一紙を送る時、紙が弾性アームを容易に押し開いて適当な前進力を獲得し、これにより単一紙の給紙の信頼度を増す。
【選択図】図６An object of the present invention is to reduce wear of a pickup roller of a sheet feeding device and to increase the reliability of feeding a single sheet.
A pickup elastic arm including a pickup roller and two elastic arms located outside both ends of the pickup roller, the ends of the two elastic arms being positioned below a portion close to the elastic arm on the surface of the pickup roller, It includes a paper strip placed in front of the elastic arm. Since the elastic arm and the pickup roller are not in contact with each other, the elastic arm does not rub the surface of the pickup roller, thereby reducing wear of the pickup roller. In addition, since the elastic arm does not come into contact with the pickup roller, it is not necessary to apply a preload to the elastic arm, so that when feeding a single paper, the paper easily pushes open the elastic arm to obtain an appropriate forward force. This increases the reliability of single sheet feeding.
[Selection] Figure 6

Description

本考案は一種の給紙装置に係り、特に、スキャナ等のオフィス設備内に取り付けられる給紙装置であって、給紙トレイ中の紙をオフィス設備内に送るのに用いられる、給紙装置に関する。 The present invention relates to a kind of paper feeding device, and more particularly, to a paper feeding device mounted in office equipment such as a scanner, and used for feeding paper in a paper feeding tray into the office equipment. .

給紙装置は、プリンタ、複写機、スキャナ、多機能事務機等のオフィス設備中に広く応用され、それはオフィス設備の給紙トレイ中の紙を該オフィス設備内に送り画像処理に供する。オフィス設備内には、通常、二枚以上の紙が同時にオフィス設備内に進入するのを防止するための構造が設けられている。 The paper feeding device is widely applied to office equipment such as a printer, a copier, a scanner, and a multi-function office machine, which feeds paper in a paper feeding tray of the office equipment into the office equipment for image processing. The office equipment is usually provided with a structure for preventing two or more sheets from entering the office equipment at the same time.

特許文献１には一種の給紙装置が記載され、それはピックアップローラ、第１ピックアップ弾性アーム、第２ピックアップ弾性アーム、分紙片とストッパアームを包含する。該第１ピックアップ弾性アームと第２ピックアップ弾性アームの一端はピックアップ方向上にあってそれぞれピックアップローラの表面の異なる位置を押圧する。ストッパアームは第１ピックアップローラと第２ピックアップローラの間に位置する。分紙片は第２ピックアップローラの下方に位置し並びにピックアップローラに当接する。ピックアップ時に、紙は第１ピックアップ弾性アームを押圧し並びに第１ピックアップ弾性アームとピックアップローラの間に進入し、ピックアップローラの回転により紙が前方に移動し、これにより紙が第２ピックアップ弾性アームを通過した後に、分紙片とピックアップローラの間に進入し、さらに該給紙装置がオフィス設備内に向けてわずかに一枚の紙を送る。 Patent Document 1 describes a kind of paper feeding device, which includes a pickup roller, a first pickup elastic arm, a second pickup elastic arm, a paper strip and a stopper arm. One ends of the first pickup elastic arm and the second pickup elastic arm are on the pickup direction and respectively press different positions on the surface of the pickup roller. The stopper arm is located between the first pickup roller and the second pickup roller. The paper strip is positioned below the second pickup roller and abuts on the pickup roller. At the time of pickup, the paper presses the first pickup elastic arm and enters between the first pickup elastic arm and the pickup roller, and the paper moves forward by the rotation of the pickup roller, whereby the paper moves the second pickup elastic arm. After passing, the paper enters between the paper separation piece and the pickup roller, and the paper feeding device feeds a sheet of paper toward the office equipment.

米国特許公告第５，５７３，３３８号明細書US Patent Publication No. 5,573,338

特許文献１に記載の給紙装置は、ピックアップローラの回転の過程で、第１ピックアップ弾性アームが終始ピックアップローラ上を押圧し、これにより第１ピックアップ弾性アームが長期にピックアップローラを摩擦することでピックアップローラの摩損を形成しやすい。このほか、紙の未ピックアップ時に第１ピックアップ弾性アームがピックアップローラと接触し、第１ピックアップローラが予圧力をピックアップローラに作用させ、単一紙が送られる時、紙は第１ピックアップ弾性アームを押し広げて前進する十分な力を必要とし、このため使用者が力を入れずに紙を第１ピックアップ弾性アームとピックアップローラの間に挿入すると、紙は第１ピックアップ弾性アームを押し開く十分な力を得られないため、単一紙をピックアップできない問題が発生しやすい。 In the paper feeding device described in Patent Document 1, the first pickup elastic arm constantly presses on the pickup roller in the course of rotation of the pickup roller, so that the first pickup elastic arm rubs the pickup roller for a long time. It is easy to form pick-up roller wear. In addition, when the paper is not picked up, the first pick-up elastic arm comes into contact with the pick-up roller, the first pick-up roller applies a preload to the pick-up roller, and when a single paper is fed, the paper moves the first pick-up elastic arm. Sufficient force is required to push forward and advance, so that if the user inserts the paper between the first pickup elastic arm and the pickup roller without applying force, the paper is sufficient to push the first pickup elastic arm open. Since the force cannot be obtained, a problem that a single paper cannot be picked up easily occurs.

ゆえに、本考案の目的は、上述の周知の技術の欠点に対して、給紙装置のピックアップローラの摩損をなくし、単一紙の給紙の信頼度を増すことにある。 Therefore, an object of the present invention is to eliminate the wear of the pickup roller of the paper feeding device and increase the reliability of feeding a single paper, in contrast to the above-mentioned disadvantages of the known technology.

本考案は一種の給紙装置を提供し、それは、ピックアップローラ、ピックアップ弾性アームであって、二つの弾性アームを具えて該二つの弾性アームが上述のピックアップローラの両端の外側に位置し、且つ該二つの弾性アームの末端が該ピックアップローラ表面の弾性アームに接近する部分の下方に位置する上記ピックアップ弾性アーム、及び該弾性アームの下方に置かれた分紙片、を包含する。 The present invention provides a kind of paper feeding device, which is a pickup roller and a pickup elastic arm, and includes two elastic arms, the two elastic arms being located outside both ends of the pickup roller, and The pickup elastic arm is located below the portion of the pickup roller surface that is close to the elastic arm on the surface of the pickup roller, and a paper strip placed below the elastic arm.

本考案はまた一種の給紙装置を提供し、それは、少なくとも二つの同軸関係に設置されたピックアップローラ、ピックアップ弾性アームであって、少なくとも一つの弾性アームを具えて該弾性アームが該ピックアップローラの間に位置し、且つ該弾性アームの末端が該ピックアップローラ表面の弾性アームに接近する部分の下方に位置する上記ピックアップ弾性アーム、及び該弾性アームの下方に置かれた分紙片、を包含する。 The present invention also provides a kind of sheet feeding device, which is a pickup roller and a pickup elastic arm installed in at least two coaxial relations, and includes at least one elastic arm, and the elastic arm is connected to the pickup roller. The pickup elastic arm positioned between and below the portion of the pickup roller surface where the end of the elastic arm approaches the elastic arm, and a paper strip placed below the elastic arm.

本考案の給紙装置の弾性アームの末端はピックアップローラの一端の外側に位置し且つピックアップローラ表面の弾性アームに接近する部分の下方に位置し、このため弾性アームがピックアップローラを摩擦せず、これにより本考案の給紙装置はピックアップローラの摩損を減らせる。並びに、弾性アームがピックアップローラと接触しないため、予圧力を弾性アームに作用させる必要がなく、このため単一紙を給紙する時、紙が容易に弾性アームを押し開き適当な前進力を得られ、これにより本考案の給紙装置は単一紙の給紙の信頼度を増すことができる。 The end of the elastic arm of the paper feeding device of the present invention is located outside the one end of the pickup roller and below the portion of the pickup roller surface approaching the elastic arm, so that the elastic arm does not rub the pickup roller, As a result, the paper feeding device of the present invention can reduce wear of the pickup roller. In addition, since the elastic arm does not come into contact with the pickup roller, it is not necessary to apply a preload to the elastic arm. Therefore, when feeding a single sheet of paper, the paper easily pushes the elastic arm open to obtain an appropriate forward force. Accordingly, the sheet feeding device of the present invention can increase the reliability of feeding a single sheet.

図１は本考案の給紙装置１０の第１実施例を示し、この図に示されるように、本実施例の給紙装置１０は、スキャナ１に取り付けられ、該スキャナ１は更に給紙トレイ２０と給紙機構３０を具備する。給紙トレイ２０は紙（図示せず）を載置し、給紙装置１０は給紙トレイ２０中の紙を給紙機構３０に送るのに用いられる。給紙機構３０は紙をスキャナ１の対応位置に送り画像処理に供する。本考案中、紙の移動方向を給紙方向と定義し、給紙方向は前方と定義する。 FIG. 1 shows a first embodiment of a paper feeding device 10 according to the present invention. As shown in FIG. 1, the paper feeding device 10 according to this embodiment is attached to a scanner 1, and the scanner 1 further includes a paper feeding tray. 20 and a paper feed mechanism 30. The paper feed tray 20 places paper (not shown), and the paper feed device 10 is used to send the paper in the paper feed tray 20 to the paper feed mechanism 30. The paper feed mechanism 30 feeds the paper to the corresponding position of the scanner 1 for image processing. In the present invention, the paper moving direction is defined as the paper feeding direction, and the paper feeding direction is defined as the front.

図２から図５に示されるように、本考案の給紙装置１０はピックアップローラ１００、カバー２００、サポートフレーム３００、ピックアップ弾性アーム４００、プレスアーム５００、分紙片６００、及び復位モジュール７００を包含する。 As shown in FIGS. 2 to 5, the paper feeding device 10 of the present invention includes a pickup roller 100, a cover 200, a support frame 300, a pickup elastic arm 400, a press arm 500, a paper strip 600, and a retraction module 700. .

該サポートフレーム３００はピックアップローラ１００の上方に置かれ、それは板状の載置板３１０を具えている。載置板３１０の上表面に上向きに垂直に三つの固定柱３１１が凸設されている。該載置板３１０の前端の中部が下向きに傾斜するよう延伸されて板状の当て板３２０が設けられる。該当て板３２０の両側の、載置板３１０の前端が下向きに傾斜するよう延伸されて、棒状の当接アーム３３０が設けられている。載置板３１０の両側が上向きに垂直に絵音信されて固定部３４０が設けられ、該固定部３４０の前端が下向きに折り曲げられ延伸されて補助部３５０が形成される。固定部３４０と補助部３５０はそれぞれカバー２００に固定される。 The support frame 300 is placed above the pickup roller 100 and includes a plate-like mounting plate 310. Three fixed pillars 311 are projected on the upper surface of the mounting plate 310 vertically upward. A plate-shaped contact plate 320 is provided by extending the middle portion of the front end of the mounting plate 310 so as to be inclined downward. Correspondingly, the front end of the mounting plate 310 on both sides of the plate 320 is extended so as to incline downward, and a bar-shaped contact arm 330 is provided. Both sides of the mounting plate 310 are transmitted vertically and vertically, and a fixing portion 340 is provided. A front end of the fixing portion 340 is bent downward and extended to form an auxiliary portion 350. The fixing part 340 and the auxiliary part 350 are each fixed to the cover 200.

ピックアップ弾性アーム４００は金属板を加圧加工してなり、それは長方形板状の保持部４１０を具え、保持部４１０に円形と方形の保持孔４１１が設けられている。保持部４１０はサポートフレーム３００の載置板３１０上に置かれ、並びに保持孔４１１がサポートフレーム３００の載置板３１０の固定柱３１１に嵌合される。保持部４１０には後方に延伸された二つの、それぞれピックアップローラ１００の両端外側に位置する弾性アーム４２０が設けられる。弾性アーム４２０は保持部４１０の後辺の両端が後ろ向きに延伸され更に下向き前向きに折り曲げられてなる挟持部４２１を具え、挟持部４２１はサポートフレーム３００の載置板３１０上を挟持する。挟持部４２１の末端は下向き前向きに折り曲げられ弾性部４２２が形成され、該弾性部４２２の末端は上向きに折り曲げられてフック状を呈し、且つ弾性部４２２の末端はピックアップローラ１００表面の弾性アーム４２０に接近する部分の下方に位置し、該ピックアップローラ１００の表面の弾性アーム４２０に接近する部分は二つの弾性部４２２がある平面とピックアップローラ１００の表面の交叉する位置である。 The pickup elastic arm 400 is formed by pressurizing a metal plate, and includes a rectangular plate-shaped holding portion 410, and the holding portion 410 is provided with circular and square holding holes 411. The holding unit 410 is placed on the mounting plate 310 of the support frame 300, and the holding hole 411 is fitted to the fixed column 311 of the mounting plate 310 of the support frame 300. The holding portion 410 is provided with two elastic arms 420 extending rearward and positioned on both outer sides of the pickup roller 100. The elastic arm 420 is provided with a holding part 421 in which both ends of the rear side of the holding part 410 are extended backward and bent downward and forward. The holding part 421 holds the mounting plate 310 of the support frame 300 on the mounting plate 310. The end of the sandwiching portion 421 is bent downward and forward to form an elastic portion 422. The end of the elastic portion 422 is bent upward to form a hook shape, and the end of the elastic portion 422 is an elastic arm 420 on the surface of the pickup roller 100. The portion approaching the elastic arm 420 on the surface of the pickup roller 100 is a position where the plane having the two elastic portions 422 and the surface of the pickup roller 100 intersect.

プレスアーム５００はシート状プラスチック或いは金属板が折り曲げられてなり、それは板状を呈する係止部５１０と係止部５１０の前端より下向きに折り曲げられてなる圧紙部５２０を具えている。係止部５１０に係止孔５１１が開設されている。該係止孔５１１はサポートフレーム３００の固定柱３１１に嵌合され、これにより係止部５１０が該サポートフレーム３００の載置板３１０上に固定される。圧紙部５２０もまた板状を呈し、該圧紙部５２０の下端はピックアップローラ１００とある距離を有し並びに弾性アーム４２０の前方に位置する。 The press arm 500 is formed by bending a sheet-like plastic or metal plate, and includes a plate-like locking portion 510 and a pressure paper portion 520 bent downward from the front end of the locking portion 510. A locking hole 511 is opened in the locking portion 510. The locking hole 511 is fitted into the fixed column 311 of the support frame 300, whereby the locking portion 510 is fixed on the mounting plate 310 of the support frame 300. The pressure paper portion 520 also has a plate shape, and the lower end of the pressure paper portion 520 has a certain distance from the pickup roller 100 and is positioned in front of the elastic arm 420.

分紙片６００はプレスアーム５００の前方に置かれ、その摩擦係数は通常、紙と紙の間の摩擦係数より大きいが、ピックアップローラ１００の摩擦係数より小さい。該分紙片６００は板状を呈する基板６１０、基板６１０の前片が下向き前向きに折り曲げられ延伸されてなる連接部６２０、及び連接部６２０の末端が前向きに折り曲げられ延伸されてなる分紙部６３０を具えている。該基板６１０に貫通孔６１１が開設されている。貫通孔６１１はサポートフレーム３００の固定柱３１１に嵌合され、これにより基板６１０がサポートフレーム３００の載置板３１０上に固定される。分紙部６３０はピックアップローラ１００上に当接する。 The paper strip 600 is placed in front of the press arm 500, and its coefficient of friction is usually larger than the coefficient of friction between papers, but smaller than that of the pickup roller 100. The split paper piece 600 includes a plate-like substrate 610, a connecting portion 620 formed by bending and extending the front piece of the substrate 610 downward and forward, and a separating portion 630 formed by extending and extending the end of the connecting portion 620 forward. It has. A through hole 611 is formed in the substrate 610. The through hole 611 is fitted into the fixing column 311 of the support frame 300, and thereby the substrate 610 is fixed on the mounting plate 310 of the support frame 300. The paper separation unit 630 abuts on the pickup roller 100.

復位モジュール７００は押圧ブロック７１０とバネ７２０を包含する。該押圧ブロック７１０は板状を呈する上板７１１を具えている。上板７１１より上向きに係止ブロック７１２が延伸されている。上板７１１の一側は斜め後ろに延伸されて二つの相互に離間した支持アーム７１３が設けられ、支持アーム７１３の末端より外向きに垂直に枢軸７１４が延伸されている。枢軸７１４はカバー２００（図示せず）に枢接される。バネ７２０は鉛直の螺旋状を呈し、該バネ７２０の一端は係止ブロック７１２に嵌合され並びに上板７１１に当接し、その別端はカバー２００に圧接する。 The repositioning module 700 includes a pressing block 710 and a spring 720. The pressing block 710 includes an upper plate 711 having a plate shape. A locking block 712 is extended upward from the upper plate 711. One side of the upper plate 711 extends obliquely rearward to provide two support arms 713 spaced apart from each other, and a pivot 714 extends vertically outward from the end of the support arm 713. The pivot 714 is pivoted to the cover 200 (not shown). The spring 720 has a vertical spiral shape, and one end of the spring 720 is fitted into the locking block 712 and abuts against the upper plate 711, and the other end presses against the cover 200.

図１、２及び図６を参照されたい。弾性アーム４２０はピックアップローラ１００の両端外側に位置し且つ弾性アーム４２０の弾性部４２２の末端はピックアップローラ１００の表面の弾性アーム４２０に接近する部分の下方に位置し、給紙装置１０が給紙する時、給紙トレイ２０中に置かれた複数の紙の前端がピックアップ弾性アーム４００の弾性アーム４２０の弾性部４２２上を圧迫し、これにより紙が弾性部４２２の末端を押さえてそれをピックアップローラ１００表面の弾性アーム４２０に接近する部分の上方に位置させ、弾性部４２２は紙の押し込みによる弾性部４２２の移動により紙に圧力を加え、紙の張力作用によりこの圧力がピックアップローラ１００に伝えられ、ピックアップローラ１００に対して前向きの力を加える。ピックアップローラ１００はすなわち紙の前進力により摩擦力を発生し、これによりピックアップローラ１００の回転により紙が前向きに移動する。これにより弾性アーム４２０部分がまず一回紙のピックアップ動作を行い、該ピックアップ動作の後に複数の紙の一部分の前端が分紙片６００の分紙部６３０部分に移動する。このとき、紙はピックアップローラ１００に駆動されて前向きに移動する。このとき、プレスアーム５００の圧紙部５２０が紙を押圧して紙が湾曲して損傷するのを防止する。続いて分紙片６００の分紙部６３０が分紙動作を行い、分紙片６００の摩擦係数は紙の間の摩擦係数より高く、これにより一枚の紙だけが分紙部６３０とピックアップローラ１００の間に進入し、その他の紙は分紙片６００部分に阻止される。分紙部６３０とピックアップローラ１００の間に進入した紙は上向きに分紙部６３０を押圧し、分紙部６３０を上向きに弾性変形させると共に、分紙部６３０に復位モジュール７００の押圧ブロック７１０の上板７１１を押圧させ、上板７１１が枢軸７１４の周りで上向きに回転し、これにより上板７１１がバネ７２０を押圧する。紙が完全にピックアップされた後、バネ７２０の弾性回復により下向きに上板７１１が押圧され、上板７１１が分紙部６３０を押圧して該分紙部６３０をピックアップローラ１００に押しつけ、次の分紙動作を行う。 Please refer to FIGS. The elastic arm 420 is located outside both ends of the pickup roller 100, and the end of the elastic portion 422 of the elastic arm 420 is located below the portion of the surface of the pickup roller 100 that is close to the elastic arm 420. When doing so, the front ends of the plurality of papers placed in the paper feed tray 20 press on the elastic portion 422 of the elastic arm 420 of the pickup elastic arm 400, and the paper presses the end of the elastic portion 422 to pick it up. The elastic portion 422 is positioned above the portion of the surface of the roller 100 that is close to the elastic arm 420, and the elastic portion 422 applies pressure to the paper by the movement of the elastic portion 422 by pushing the paper. Then, a forward force is applied to the pickup roller 100. That is, the pickup roller 100 generates a frictional force due to the forward force of the paper, whereby the paper moves forward by the rotation of the pickup roller 100. As a result, the elastic arm 420 first performs the paper pick-up operation once, and after the pick-up operation, the front ends of a part of the plurality of papers are moved to the paper separating portion 630 of the paper separating strip 600. At this time, the paper is driven forward by the pickup roller 100 and moves forward. At this time, the pressure paper portion 520 of the press arm 500 prevents the paper from being bent and damaged by pressing the paper. Subsequently, the paper separation unit 630 of the paper separation piece 600 performs a paper separation operation, and the friction coefficient of the paper separation piece 600 is higher than the friction coefficient between the papers, so that only one sheet of the paper separation part 630 and the pick-up roller 100 is present. In the meantime, the other paper is blocked by the separation sheet 600 portion. The paper that has entered between the paper separating unit 630 and the pickup roller 100 presses the paper separating unit 630 upward, elastically deforms the paper separating unit 630 upward, and the paper separating unit 630 has the pressing block 710 of the relocation module 700. The upper plate 711 is pressed, and the upper plate 711 rotates upward around the pivot 714, whereby the upper plate 711 presses the spring 720. After the paper is completely picked up, the upper plate 711 is pressed downward by the elastic recovery of the spring 720. The upper plate 711 presses the paper separating portion 630 and presses the paper separating portion 630 against the pick-up roller 100. Performs separation operation.

以上により、本考案の給紙装置１０の二つの弾性アーム４２０はそれぞれピックアップローラ１００の両端外側に位置し且つ弾性アーム４２０の弾性部４２２の末端がピックアップローラ１００の表面の弾性アーム４２０に近い部分の下方に位置し、これにより弾性アーム４２０が先に一回紙のピックアップ動作を行う。最後に一枚の紙が給紙装置１０を通過した後、弾性アーム４２０はピックアップローラ１００の表面を摩擦せず、これにより本考案の給紙装置１０はピックアップローラ１００の摩損を防止できる。このほか、弾性アーム４２０がピックアップローラ１００と接触しないため、予圧力を弾性アーム４２０に印加する必要がなく、これによりピックアップする紙が特に薄い単一紙であるときも、紙が容易に弾性アーム４２０を押し開き、適当な前進力を獲得し、これにより本考案の給紙装置１０の単一紙の給紙の信頼度を増すことができる。 As described above, the two elastic arms 420 of the paper feeding device 10 of the present invention are respectively located outside both ends of the pickup roller 100 and the end of the elastic portion 422 of the elastic arm 420 is close to the elastic arm 420 on the surface of the pickup roller 100. Thus, the elastic arm 420 first picks up the paper once. Finally, after a sheet of paper has passed through the paper feeding device 10, the elastic arm 420 does not rub against the surface of the pickup roller 100, so that the paper feeding device 10 of the present invention can prevent the pickup roller 100 from being worn. In addition, since the elastic arm 420 does not come into contact with the pickup roller 100, it is not necessary to apply a preload to the elastic arm 420. Thus, even when the paper to be picked up is a particularly thin single paper, the paper can be easily It is possible to push open 420 and obtain a suitable forward force, thereby increasing the reliability of sheet feeding of the sheet feeding device 10 of the present invention.

図７を参照されたい。図７は本考案の給紙装置１０の第２実施例を示す。本実施例は第１実施例と類似するが、その異なるところは、給紙装置１０が二つの同軸に設置されたピックアップローラ１００’、ピックアップ弾性アームであって、二つの弾性アーム４２０’を具え、該弾性アーム４２０’の末端が二つのピックアップローラ１００’の間に位置し、且つ該弾性アーム４２０’の末端が二つのピックアップローラ１００’表面の弾性アーム４２０’に近い部分の下方に位置する。 Please refer to FIG. FIG. 7 shows a second embodiment of the paper feeder 10 of the present invention. The present embodiment is similar to the first embodiment, except that the sheet feeding device 10 includes two pickup rollers 100 ′ and a pickup elastic arm, which are arranged coaxially, and include two elastic arms 420 ′. The end of the elastic arm 420 ′ is located between the two pickup rollers 100 ′, and the end of the elastic arm 420 ′ is located below the portion of the surface of the two pickup rollers 100 ′ close to the elastic arm 420 ′. .

図８及び図９は本考案の給紙装置１０の第３実施例を示す。本実施例は第１実施例に類似し、その異なるところは、復位モジュール７００が押圧ブロック７１０’とねじりバネ７４０を包含し、押圧ブロック７１０’が長板状を呈する上板７１１’を具え、上板７１１’の両端に軸部７１５’が凸設され、軸部７１５’に軸孔７１６’が開設される。ねじりバネ７４０は二つの横方向に設置された螺旋状のトルク部７４１を具え、二つのトルク部７４１の一端の間にＵ形を呈する押圧部７４２が接続され、該押圧部７４２が上板７１１’を押圧し、二つのトルク部７４１の別端が二つの係止部７４３を具えている。そのうち、一つの係止部７４３がカバー２００に係止され、もう一つの係止部７４３は押圧ブロック７１０の軸部７１２の軸孔７１６’内に係止される。 8 and 9 show a third embodiment of the paper feeder 10 according to the present invention. The present embodiment is similar to the first embodiment, except that the restoring module 700 includes a pressing block 710 ′ and a torsion spring 740, and the pressing block 710 ′ includes an upper plate 711 ′ having a long plate shape, Shaft portions 715 ′ are protruded from both ends of the upper plate 711 ′, and shaft holes 716 ′ are formed in the shaft portions 715 ′. The torsion spring 740 includes two laterally arranged spiral torque portions 741, and a U-shaped pressing portion 742 is connected between one ends of the two torque portions 741, and the pressing portion 742 is connected to the upper plate 711. 'And the other end of the two torque portions 741 has two locking portions 743. Among them, one locking portion 743 is locked to the cover 200, and the other locking portion 743 is locked in the shaft hole 716 ′ of the shaft portion 712 of the pressing block 710.

本実施例の給紙装置１０は紙をピックアップするとき、分紙部６３０とピックアップローラ１００の間に進入する紙が上向きに分紙部６３０を押して分紙部６３０を上向きに弾性変形させ、分紙部６３０に復位モジュール７００の押圧ブロック７１０’の上板７１１’を押圧させ、上板７１１’が分紙部６３０に伴い上向きに移動する。ねじりバネ７４０の押圧部７４２が上板７１１’を押圧し二つの係止分紙部７４３がそれぞれカバー２００の軸部７１５’の軸孔７１６’内に係止され、これによりねじりバネ７４０のトルク部７４１が弾性変形を発生する。紙が完全に取り込まれた後に、ねじりバネ７４０の弾性回復により下向きに上板７１１’が押圧され、上板７１１’が分紙部６３０を押して分紙部６３０にピックアップローラ１００上を押圧させ、次の分紙動作を行わせる。ねじりバネ７４０は横向きに設置され、これにより縦方向上の占用空間は小さく、有効に給紙装置１０の体積を減らすことができる。 When the paper feeding device 10 of the present embodiment picks up paper, the paper entering between the paper separating unit 630 and the pickup roller 100 pushes the paper separating unit 630 upward to elastically deform the paper separating unit 630 upward, thereby separating the paper. The upper plate 711 ′ of the pressing block 710 ′ of the rearrangement module 700 is pressed by the paper unit 630, and the upper plate 711 ′ moves upward along with the separating unit 630. The pressing portion 742 of the torsion spring 740 presses the upper plate 711 ′, and the two locking paper separating portions 743 are respectively locked in the shaft holes 716 ′ of the shaft portion 715 ′ of the cover 200, and thereby the torque of the torsion spring 740. The part 741 generates elastic deformation. After the paper is completely taken in, the upper plate 711 ′ is pressed downward by the elastic recovery of the torsion spring 740, and the upper plate 711 ′ pushes the paper separating unit 630 to press the paper separating unit 630 on the pickup roller 100, Performs the next paper separation operation. The torsion spring 740 is installed in the horizontal direction, so that the occupied space in the vertical direction is small, and the volume of the paper feeding device 10 can be effectively reduced.

本考案の給紙装置１０は以上に記載の構造によりその作用効果を達成し、且つ本考案は実用新案登録の要件を具備する。なお、以上の記述は本考案の請求範囲を限定するものではなく、本考案に基づきなし得る細部の修飾或いは改変は、いずれも本考案の請求範囲に属するものとする。 The sheet feeding device 10 of the present invention achieves its function and effect by the structure described above, and the present invention has a requirement for registering a utility model. The above description does not limit the scope of claims of the present invention, and any modification or modification of details that can be made based on the present invention shall belong to the scope of claims of the present invention.

本考案の第１実施例の給紙装置がスキャナに取り付けられた立体組合せ図である。1 is a three-dimensional combination diagram in which a paper feeding device according to a first embodiment of the present invention is attached to a scanner. 本考案の給紙装置からカバーを取り除いた後の立体組合せ図である。It is a three-dimensional combination figure after removing a cover from the paper feeder of the present invention. 本考案の給紙装置のカバーの立体図である。It is a three-dimensional view of the cover of the paper feeder of the present invention. 本考案の給紙装置の立体分解図である。It is a three-dimensional exploded view of the paper feeder of the present invention. 本考案の給紙装置の側面図である。It is a side view of the paper feeder of the present invention. 本考案の給紙装置の断面図である。It is sectional drawing of the paper feeder of this invention. 本考案の第２実施例の給紙装置のピックアップローラと弾性アームの構造表示図である。It is a structure display figure of the pick-up roller and elastic arm of the paper feeder of 2nd Example of this invention. 本考案の第３実施例の給紙装置の立体組合せ図である。It is a three-dimensional combination diagram of the paper feeding device of the third embodiment of the present invention. 本考案の第３実施例の給紙装置の復位モジュールの立体分解図である。FIG. 6 is a three-dimensional exploded view of a restoration module of a sheet feeding device according to a third embodiment of the present invention.

Explanation of symbols

１０給紙装置１００、１００’ ピックアップローラ
２００カバー３００サポートフレーム
３１０載置板３１１固定柱
３２０当て板３３０当接アーム
３４０固定部３５０補助部
４００ピックアップ弾性アーム４１０保持部
４１１保持孔４２０、４２０’ 弾性アーム
４２１挟持部４２２弾性部
５００プレスアーム５１０係止部
５２０圧紙部６００分紙片
６１０基板６１１貫通孔

６２０連接部
６３０分紙部７００復位モジュール
７１０、７１０’ 押圧ブロック７１１、７１１’ 上板
７１２係止ブロック７１３支持アーム
７１４枢軸７１５’ 軸部
７１６’ 軸孔７２０バネ
７４０ねじりバネ７４１トルク部
７４２押圧部７４３係止部
２０給紙トレイ３０給紙機構 DESCRIPTION OF SYMBOLS 10 Paper feeder 100, 100 'Pickup roller 200 Cover 300 Support frame 310 Mounting plate 311 Fixing pillar 320 Abutting plate 330 Contact arm 340 Fixing part 350 Auxiliary part 400 Pickup elastic arm 410 Holding part 411 Holding hole 420, 420' Elasticity Arm 421 Nipping part 422 Elastic part 500 Press arm 510 Locking part 520 Pressing paper part 600 Separator piece 610 Substrate 611 Through hole

620 Connecting portion 630 Separating portion 700 Restoring module 710, 710 ′ Press block 711, 711 ′ Upper plate 712 Locking block 713 Support arm 714 Axis 715 ′ Shaft portion 716 ′ Shaft hole 720 Spring 740 Torsion spring 741 Torque portion 742 Pressing portion 743 Locking section 20 Paper feed tray 30 Paper feed mechanism

Claims

In the paper feeder,
A pickup roller;
A pickup elastic arm, comprising two elastic arms positioned outside both ends of the pickup roller described above, wherein the ends of the two elastic arms are positioned below a portion of the pickup roller surface approaching the elastic arm. A pickup elastic arm;
A paper strip placed in front of the elastic arm;
A paper feeding device characterized by comprising:

The paper feeding device according to claim 1, further comprising a support frame, the support frame being placed above the pickup roller, the support frame including a mounting plate, and the pickup elastic arm including a holding portion. A sheet feeding device, wherein the holding unit is fixed on the mounting plate, and the holding unit is bent downward and extended to form the elastic arm.

The sheet feeding device according to claim 2, wherein the elastic arm extends backward from the holding unit and is further bent downward and forward to be extended to form a holding unit, and the holding unit holds the mounting plate, An end portion of the holding portion is bent downward and forward to form an elastic portion, and the end of the elastic portion is located below a portion of the pickup roller surface approaching the elastic arm.

3. The paper feeding device according to claim 2, further comprising a press arm, the press arm comprising a locking portion and a pressure paper portion formed by being bent downwardly from the locking portion and extending, wherein the locking portion is a support frame. The sheet feeding device is fixed on the mounting plate, and a lower end of the pressure paper portion has a distance from the pickup roller.

5. The sheet feeding device according to claim 4, wherein a placing plate is bent and extended so as to be inclined downward to form a plate-like contact plate, and the press arm portion of the press arm abuts on the plate. A sheet feeding device characterized by that.

3. The paper feeding device according to claim 2, wherein the separating piece includes a substrate, the substrate is bent downward and forward and stretched to form a connecting portion, and the end of the connecting portion is folded forward and stretched. A sheet feeding device, characterized in that a portion is formed and the substrate is fixed on the mounting plate of the support frame.

The paper feeding device according to claim 6, wherein the paper feeding device includes a cover, and the support frame is fixed to the cover.

The sheet feeding device according to claim 7, wherein both sides of the mounting plate are vertically extended vertically to form a fixing portion, and a front end of the fixing portion is bent downward and extended to form an auxiliary portion, A sheet feeding device, wherein the fixing unit and the auxiliary unit are respectively fixed to the cover.

8. The sheet feeding device according to claim 7, further comprising a restoring module, the restoring module including a pressing block and a torsion spring, and comprising a helical torque portion in which the torsion spring is installed laterally, There are two engaging portions, the two engaging portions are engaged with the pressing block and the cover, and the pressing block presses on the separating portion of the separating piece. .

10. The sheet feeding device according to claim 9, wherein the torsion spring includes the two torque portions described above, the two torque portions are connected by a U-shaped pressing portion, and the pressing portion presses on the pressing block. A sheet feeding device characterized in that:

At least two pickup rollers installed coaxially;
A pickup elastic arm, comprising at least one elastic arm, the elastic arm being located between the pickup rollers, and the end of the elastic arm below the elastic arm on the surface of the pickup roller Located above the pickup elastic arm;
A paper strip placed in front of the elastic arm;
A paper feeding device comprising: