JP3834207B2 - Paper feeder - Google Patents
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- JP3834207B2 JP3834207B2 JP2001027079A JP2001027079A JP3834207B2 JP 3834207 B2 JP3834207 B2 JP 3834207B2 JP 2001027079 A JP2001027079 A JP 2001027079A JP 2001027079 A JP2001027079 A JP 2001027079A JP 3834207 B2 JP3834207 B2 JP 3834207B2
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Description
【０００１】
【発明の属する技術分野】
本発明は、複写機、プリンタ、ファクシミリ、それらの複合機、印刷機等画像形成装置に用いられる給紙装置に関するものであり、詳しくは、シート収容部のシートが給送され尽くしたときに自動補給することが可能である給紙装置に関する。
【０００２】
【従来の技術】
画像形成装置内の給紙装置は複数段設けられており、それぞれ各種サイズのシートが収容されている。便宜上シート収容量は大きい程良いが、装置の小型化のためにある程度の制約はやむを得ず、装置内のデッドスペースをいかに利用するかが今日の課題となっている。
１つのシート収容部は１種類のサイズのシートしか収容できないため、小サイズのシートをセットした場合は給紙側と反対側のスペースが全く役に立たない。そこで、従来より様々な提案がなされてきた。
【０００３】
特開平３−１９５６３９号公報においては、シートの有無を検知する検知手段と、平行に上下動可能なシート収容部及び給紙用シート収容部とを備え、空きスペースを有効に活用した給紙装置を提案しているが、装置動作中は給紙用シート収容部にシート補給を行うことができないという不具合があった。
特開平６−１４４６００号公報では、シート収容部にロック機構を設けることなどで上記の問題を解決している。しかし、シート収容部の移動に伴い、ロック機構における歯形部のかみ合いのずれや、給紙装置本体とシート収容部とのコネクタの接続不良が発生することがあった。
【０００４】
【発明が解決しようとする課題】
上記問題点に鑑み、給紙動作する方のシート収容部の給紙装置本体に対する位置決めが、簡単な構成で、確実に行うことができ、シート搬送性能が安定した給紙装置を提供することを目的とする。
また、第１シート収容部を給紙装置本体にセットしているときは常に第１シート収容部と給紙装置本体の電気接合を確実に保持し、誤動作を防止した給紙装置を提供することを目的とする。
さらに、第１シート収容部の停止位置を前後させることで横レジスト調整を行う給紙装置の、横レジスト調整作業の前後においても、第１シート収容部の給紙装置本体に対する位置決めが簡単な構成で、確実に行うことができ、誤動作を防止した給紙装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
上記課題を解決するために、請求項１に記載の本発明は、複数枚のシートを積載する第１シート収容部と、第１シート収容部からシートを１枚ずつ給送する給紙手段と、第１シート収容部に対して水平且つ並列に配設された第２シート収容部と、第２シート収容部の積載シートを第１シート収容部へ一括して移送するシート移送手段と、第１シート収容部から給紙動作継続中は第２シート収容部のみシート移送方向と略直角に引き出すことが可能なロック機構を有する給紙装置において、第１シート収容部の前後方向のガタ及び第１シート収容部にかかる前後方向の変位スライド力を、ガタは極力小さくし、且つ前後方向の変位スライド力に抗する保持力を持つロック機構を設けたことを特徴とする給紙装置とする。
請求項２に記載の本発明は、請求項１に記載の給紙装置において、第１シート収容部と給紙装置本体の電気的な接離を行うコネクタを第１シート収容部と給紙装置本体側とにそれぞれ有し、コネクタの接合を確実に保持するための弾性部材を有し、弾性部材により発生する前後方向の変位スライド力に抗する保持力を持つロック機構を設けたことを特徴とする給紙装置とする。
請求項３に記載の本発明は、請求項１または２に記載の給紙装置において、第１シート収容部の横レジスト調整を、第１シート収容部を給紙装置本体にセットしたときの前後方向の停止位置調整で行う機構を有し、第１シート収容部の停止位置がいずれの位置であっても、第１シート収容部の前後方向のガタ及び第１シート収容部にかかる前後方向の変位スライド力を、ガタは極力小さくし、且つ前後方向の変位スライド力に抗する保持力を持つロック機構を設けたことを特徴とする給紙装置とする。
【０００６】
【発明の実施の形態】
以下に、本発明の実施の形態を図に基づいて説明する。
＜第１の実施例＞
図１は本発明の給紙装置を備える画像形成装置の概略構成図である。図２は本発明の給紙装置の概略正面図であり、図３は概略平面図である。
第１シート収容部（１００）と、第２シート収容部（２００）は水平且つ並列に構成されていて、それぞれが独立したシート収容部として存在している。第１シート部（１００）と第２シート部（２００）とを一体化させるか、分離させるかは、第１ロック爪（１０７）の挙動によって決定される。第１ロック爪（１０７）はロック爪駆動装置（２０）によって駆動される。
図４にロック爪駆動装置（２０）の概略斜視図を示す。図５はロック爪駆動装置（２０）の部分拡大図であり、（ａ）は第２ロック爪（２２）が第１シート収容部（１００）に係合している様子を示し、（ｂ）は第１ロック爪（１０７）が第２シート収容部（２００）に係合している様子を示す。
【０００７】
ソレノイド（２３）のＯＮ状態で、第２ロック爪（２２）が矢印方向に回動し、第２ロック爪（２２）先端の歯形部（２２ａ）と、第１シート収容部（１００）に設けられた歯形部（１００ａ）が係合して給紙装置本体（６０）と第１シート収容部（１００）とをロックする構成となっている。それぞれの歯形部（２２ａ、１００ａ）の歯のピッチは、ほぼ同一の微小ピッチ（２ｍｍ以下）に設定されており、第２ロック爪（２２）回動時にそれぞれの歯形部（２２ａ、１００ａ）の歯の山同士がぶつかっても、第２ロック爪（２２）の組み付けガタ分でずれることで歯がかみ合うようになっている。
また、第２ロック爪（２２）に組み付けられた、スタッド（２５）にアーム（２１）が連結されていて、ソレノイド（２３）のＯＮ状態で、アーム（２１）はスタッド（２６）を支点として矢印方向に回動し、第１シート収容部内の第１ロック爪（１０７）をねじりコイルばね（２８）の作用に抗して支軸（２７）回りに回動させる。
【０００８】
＜第２の実施例＞
図６に本発明の給紙装置の概略平面図を示す。図７は第１シート収容部（１００）のコネクタと給紙装置本体（６０）の接続状態を示す図で、（ａ）は正常状態、（ｂ）は接続不良状態を示す。
第１シート収容部（１００）と第２シート収容部（２００）には、それぞれ給紙装置本体（６０）との電気的接続を行うための第１コネクタ（１２０）、第２コネクタ（２２０）が設けられており、対応する給紙装置本体（６０）側のコネクタ（８１、８２）とシート収容部セット時に接続するように構成している。
【０００９】
第２シート収容部（２００）には突起部（２２２）設けられている。給紙装置本体（６０）側には引き込み部材（９０）が設けられ、支軸（９０ｂ）を支点に弾性部材（９０ｃ）と回転体（９０ａ）の働きで第２シート収容部（２００）のセット時に回転体（９０ａ）が突起部（２２２）の頂点を乗り越えた位置で位置決めされ、セット時に適当なクリック感を与えるとともに矢印Ａ方向に第２シート収容部（２００）を引き込んでいる。それにより、第２シート収容部（２００）は、第１シート収容部（１００）を矢印Ａ方向に押し込み力を与えている。
【００１０】
一方、給紙装置本体（６０）側のコネクタ（８１、８２）は、支軸（８３）と弾性部材（８４）によってスライド可能で且つシート収容部のコネクタ（１２０、２２０）に給紙装置本体（６０）側のコネクタ（８１、８２）を矢印Ｂ方向に押しつけるように構成している。
シート収容部（１００、２００）による矢印Ａ方向への引き込み力は、給紙装置本体（６０）側のコネクタ（８１、８２）による矢印Ｂ方向の加圧力よりも大きく設定しているので、第１シート収容部（１００）と第２シート収容部（２００）とを一体で給紙装置本体（６０）にセットした時には図７（ａ）のようにシート収容部の第１コネクタ（１２０）または第２コネクタ（２２０）と給紙装置本体（６０）側のコネクタ（８１又は８２）は確実に接続された状態になり、給紙装置本体（６０）側のコネクタの支軸（８３）を固定している固定板（８０）から給紙装置本体（６０）側のコネクタ（８１又は８２）が少し離れたギャップＣの位置で停止する。
【００１１】
ところが、第１シート収容部（１００）からシート給紙中に第２シート収容部（２００）を引き出すと、第１シート収容部（１００）への矢印Ａ方向の押し付け力が無くなり、給紙装置本体（６０）側のコネクタ（８１）を加圧している弾性部材（８４）の力で給紙装置本体側コネクタ（８１）が固定板（８０）の位置まで押され、その勢いで第１シート収容部（１００）が押し出されてギャップＤの隙間が生じ、コネクタの接続不良が発生することがあった。
そこで、第２ロック爪（１０７）と第１シート収容部（１００）とを第１の実施例の構成にすることで、第２シート収容部（２００）を引き出す時の第１収容部（１００）の押し出され量は、それぞれの歯形部（２２ａ、１００ａ）の歯のピッチガタだけに抑えることができる。
【００１２】
＜第３の実施例＞
図８は、本発明の給紙装置の横レジスト調整機構を示す分解斜視図である。
本発明の構成の第１シート収容部（１００）側面にストッパー（１１０）が取り付け位置調整可能に設けてあり、それが給紙装置本体（６０）のフレーム（３０）の位置決め台（３１）に突き当たる位置で第１シート収容部（１００）のスライド方向の固定位置決めを行っている。つまり、ストッパー（１１０）の取り付け位置を移動することで第１シート収容部（１００）のスライド方向の固定位置を調整できる構成になっている。
この場合、ストッパーの取り付け位置が変わることによって、第１シート収容部（１００）を押し出そうとする矢印Ｂ方向の加圧力が変化することがあるが、本発明の構成によれば、その加圧力の変化にも影響を受けることなく第１シート収容部（１００）を固定して、コネクタの接続を保持することができる。
【００１３】
【発明の効果】
以上説明したように、本発明の給紙装置では、第１シート収容部にかかる前後方向のガタ及び第１シート収容部にかかる前後方向の変位スライド力を、ガタは極力小さくし、且つ、前後方向の変位スライド力に抗する保持力を持つロック機構を設けたことで、第１シート収容部の給紙装置本体に対する位置決めが簡単な構成で、確実に行え、シート搬送性が安定した給紙装置を提供することができる。
また、第１シート収容部と給紙装置本体の電気的な接離を行うコネクタの接合を確実に保持するための弾性部材により発生する前後方向の変位スライド力に抗する保持力を持つロック機構を設けたことで、第１シート収容部を給紙装置本体にセットしているときは常に第１シート収容部と給紙装置本体の電気接合が確実に保持でき、誤動作を防止した給紙装置を提供することができる。
さらに、横レジスト調整により、第１シート収容部の停止位置が前後方向にずれても、第１シート収容部の前後方向のガタ及び第１シートと収容部にかかる前後方向の変位スライド力を、ガタは極力小さくし、且つ、前後方向の変位スライド力に抗する保持力を持つロック機構を設けたので、第１シート収容部の給紙装置本体に対する位置決めが、レジスト調整時にも簡単な構成で、確実に行え、シート搬送性能が安定し、第１シート収容部と給紙装置本体の電気接合が確実に保持でき、誤動作を防止した給紙装置を提供することができる。
【図面の簡単な説明】
【図１】本発明の給紙装置を備える画像形成装置の概略構成図である。
【図２】本発明の給紙装置の概略正面図である。
【図３】本発明の給紙装置の概略平面図である。
【図４】ロック爪駆動装置の概略斜視図である。
【図５】ロック爪駆動装置の部分拡大図である。
【図６】本発明の給紙装置の概略平面図である。
【図７】第１シート収容部のコネクタと給紙装置本体の接続状態を示す図である。
【図８】本発明の給紙装置の横レジスト調整機構を示す分解斜視図である。
【符号の説明】
２０ ロック爪駆動装置
２１ アーム
２２ 第２ロック爪
２２ａ 第２ロック爪歯形部
２３ ソレノイド
２５ 第２スタッド
２６ 第１スタッド
２７ 支軸
２８ ねじりコイルばね
３０ フレーム
３１ 位置決め台
６０ 給紙装置本体
８０ 固定板
８１、８２ コネクタ
８３ 支軸
８４ 弾性部材
９０ 引き込み部材
９０ａ 回転体
９０ｂ 支軸
９０ｃ 弾性部材
１００ 第１シート収容部
１００ａ 第１シート収容部歯形部
１０７ 第１ロック爪
１１０ ストッパー
１２０ 第１コネクタ
２００ 第２シート収容部
２２０ 第２コネクタ
２２２ 突起部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a paper feeding device used in an image forming apparatus such as a copying machine, a printer, a facsimile, a composite machine thereof, or a printing machine, and more specifically, automatically when a sheet in a sheet storage unit is completely fed. The present invention relates to a paper feeding device that can be replenished.
[0002]
[Prior art]
A plurality of sheet feeders are provided in the image forming apparatus, and sheets of various sizes are accommodated respectively. For convenience, the larger the seat capacity, the better. However, some restrictions are unavoidable for downsizing of the apparatus, and how to use the dead space in the apparatus is a problem today.
Since one sheet storage unit can store only one type of sheet, when a small size sheet is set, the space on the side opposite to the sheet feeding side is not useful at all. Therefore, various proposals have been made conventionally.
[0003]
In Japanese Patent Application Laid-Open No. 3-195539, a sheet feeding device that includes a detection unit that detects the presence or absence of a sheet, a sheet storage unit that can be moved up and down in parallel, and a sheet storage unit for sheet feeding, and that effectively uses an empty space. However, there is a problem in that the sheet cannot be supplied to the sheet storage unit during operation of the apparatus.
In Japanese Patent Laid-Open No. 6-144600, the above problem is solved by providing a lock mechanism in the sheet storage portion. However, with the movement of the sheet storage unit, the engagement of the tooth profile portion in the lock mechanism and the poor connection of the connector between the sheet feeder main body and the sheet storage unit may occur.
[0004]
[Problems to be solved by the invention]
In view of the above-described problems, it is possible to provide a sheet feeding device that can reliably perform positioning of a sheet storage unit for a sheet feeding operation with respect to a sheet feeding device main body with a simple configuration and has stable sheet conveyance performance. Objective.
Further, it is possible to provide a paper feeding device that reliably holds the electrical connection between the first sheet housing portion and the paper feeding device body whenever the first sheet housing portion is set in the paper feeding device body and prevents malfunction. With the goal.
Further, a configuration in which the sheet feeding device that performs lateral registration adjustment by moving the stop position of the first sheet storage unit back and forth can easily position the first sheet storage unit with respect to the sheet feeding device body before and after the lateral registration adjustment operation. An object of the present invention is to provide a paper feeding device that can be reliably performed and prevents malfunction.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention described in claim 1 includes a first sheet storage unit that stacks a plurality of sheets, and a sheet feeding unit that feeds sheets one by one from the first sheet storage unit. A second sheet storage unit disposed horizontally and in parallel with the first sheet storage unit, sheet transfer means for collectively transferring the stacked sheets of the second sheet storage unit to the first sheet storage unit, In a sheet feeding device having a lock mechanism that can pull out only the second sheet storage unit substantially at right angles to the sheet transfer direction while continuing the sheet feeding operation from one sheet storage unit, A sheet feeding device is provided with a lock mechanism having a holding force that minimizes the back-and-forth displacement sliding force applied to one sheet accommodating portion and that resists the back-and-forth displacement sliding force.
According to a second aspect of the present invention, there is provided the sheet feeding device according to the first aspect, wherein the first sheet storage unit and the sheet feeding device are connected to each other to electrically connect and separate the first sheet storage unit and the sheet feeding device body. A locking mechanism is provided on each of the main body side, having an elastic member for securely holding the connector joint, and having a holding force that resists a displacement slide force in the front-rear direction generated by the elastic member. The paper feeder is as follows.
According to a third aspect of the present invention, in the paper feeding device according to the first or second aspect, the lateral registration adjustment of the first sheet storage portion is performed before and after the first sheet storage portion is set in the paper feeding device body. A mechanism for adjusting the stop position in the direction, regardless of the stop position of the first sheet storage unit, the backlash in the front-rear direction of the first sheet storage unit and the front-rear direction applied to the first sheet storage unit The displacement slide force is as small as possible, and a lock mechanism having a holding force against the displacement slide force in the front-rear direction is provided.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First embodiment>
FIG. 1 is a schematic configuration diagram of an image forming apparatus including a paper feeding device according to the present invention. FIG. 2 is a schematic front view of the paper feeding device of the present invention, and FIG. 3 is a schematic plan view.
The first sheet storage unit (100) and the second sheet storage unit (200) are configured horizontally and in parallel, and each exists as an independent sheet storage unit. Whether the first sheet part (100) and the second sheet part (200) are integrated or separated is determined by the behavior of the first lock claw (107). The first lock claw (107) is driven by a lock claw driving device (20).
FIG. 4 shows a schematic perspective view of the lock claw driving device (20). FIG. 5 is a partially enlarged view of the lock claw driving device (20). FIG. 5 (a) shows a state in which the second lock claw (22) is engaged with the first sheet storage portion (100). Shows a state in which the first lock claw (107) is engaged with the second sheet storage portion (200).
[0007]
When the solenoid (23) is in the ON state, the second lock claw (22) rotates in the direction of the arrow, and is provided in the tooth profile (22a) at the tip of the second lock claw (22) and the first sheet storage unit (100). The formed tooth profile (100a) is engaged to lock the sheet feeder main body (60) and the first sheet storage unit (100). The tooth pitches of the respective tooth profile portions (22a, 100a) are set to substantially the same minute pitch (2 mm or less), and each tooth profile portion (22a, 100a) is rotated when the second lock claw (22) is rotated. Even if the crests of teeth collide with each other, the teeth are engaged with each other by shifting by the amount of assembly of the second lock claw (22).
In addition, the arm (21) is connected to the stud (25) assembled to the second lock claw (22), and the arm (21) has the stud (26) as a fulcrum in the ON state of the solenoid (23). Rotating in the direction of the arrow, the first locking claw (107) in the first sheet accommodating portion is rotated around the support shaft (27) against the action of the torsion coil spring (28).
[0008]
<Second embodiment>
FIG. 6 is a schematic plan view of the paper feeding device of the present invention. 7A and 7B are diagrams illustrating a connection state between the connector of the first
A first connector (120) and a second connector (220) for electrical connection with the sheet feeder main body (60) are respectively connected to the first sheet storage unit (100) and the second sheet storage unit (200). Are provided so as to be connected to the corresponding connector (81 82) on the side of the sheet feeder main body (60) when the sheet storage unit is set.
[0009]
The second sheet storage part (200) is provided with a protrusion (222). A pull-in member (90) is provided on the side of the sheet feeder main body (60), and the second sheet storage unit (200) is supported by the elastic member (90c) and the rotating body (90a) with the support shaft (90b) as a fulcrum. The rotating body (90a) is positioned at the position over the top of the protrusion (222) when set, and provides an appropriate click feeling during setting and pulls the second sheet storage portion (200) in the direction of arrow A. Thereby, the 2nd sheet | seat accommodating part (200) is pushing the 1st sheet | seat accommodating part (100) in the arrow A direction, and has given the force.
[0010]
On the other hand, the connectors (81, 82) on the side of the sheet feeder main body (60) are slidable by the support shaft (83) and the elastic member (84), and are connected to the connectors (120, 220) of the sheet storage unit. The connector (81, 82) on the (60) side is configured to be pressed in the arrow B direction.
The pulling force in the direction of arrow A by the sheet storage portion (100, 200) is set to be larger than the pressing force in the direction of arrow B by the connector (81, 82) on the sheet feeder main body (60) side. When the one sheet storage unit (100) and the second sheet storage unit (200) are integrally set in the sheet feeder main body (60), as shown in FIG. 7A, the first connector (120) of the sheet storage unit or The second connector (220) and the connector (81 or 82) on the paper feeder main body (60) side are securely connected, and the support shaft (83) of the connector on the paper feeder main body (60) side is fixed. The connector (81 or 82) on the side of the sheet feeder main body (60) is stopped at the position of the gap C slightly away from the fixed plate (80).
[0011]
However, when the second sheet storage unit (200) is pulled out from the first sheet storage unit (100) during sheet feeding, the pressing force in the direction of arrow A to the first sheet storage unit (100) disappears, and the paper supply device The sheet feeding device body-side connector (81) is pushed to the position of the fixing plate (80) by the force of the elastic member (84) that presses the connector (81) on the body (60) side, and the first sheet is moved by that force. The accommodating part (100) was pushed out, the gap D was produced, and the connection failure of the connector sometimes occurred.
Accordingly, the second lock claw (107) and the first sheet storage portion (100) are configured as in the first embodiment, whereby the first storage portion (100) when the second sheet storage portion (200) is pulled out. ) Can be suppressed only to the pitch backlash of the teeth of the respective tooth profile portions (22a, 100a).
[0012]
<Third embodiment>
FIG. 8 is an exploded perspective view showing the lateral registration adjusting mechanism of the paper feeding device of the present invention.
The stopper (110) is provided on the side surface of the first sheet storage portion (100) of the configuration of the present invention so that the mounting position can be adjusted, and this is provided on the positioning base (31) of the frame (30) of the sheet feeder main body (60). The fixed positioning in the sliding direction of the first sheet storage portion (100) is performed at the abutting position. That is, the fixed position in the sliding direction of the first sheet storage portion (100) can be adjusted by moving the attachment position of the stopper (110).
In this case, the pressing force in the direction of the arrow B that tries to push out the first sheet accommodating portion (100) may change due to the change of the stopper mounting position. The connection of the connector can be maintained by fixing the first sheet storage portion (100) without being affected by the change in pressure.
[0013]
【The invention's effect】
As described above, in the sheet feeding device of the present invention, the backlash in the front-rear direction applied to the first sheet storage unit and the displacement slide force in the front-rear direction applied to the first sheet storage unit are reduced as much as possible. By providing a lock mechanism having a holding force that resists the displacement sliding force in the direction, the first sheet storage unit can be reliably positioned with a simple configuration with a simple configuration, and the sheet feeding performance is stable. An apparatus can be provided.
Also, a locking mechanism having a holding force that resists a longitudinal sliding force generated by an elastic member for reliably holding a connector that electrically contacts and separates the first sheet storage unit and the sheet feeding device main body. By providing the sheet feeding device, the electrical connection between the first sheet housing unit and the sheet feeding device body can be reliably held whenever the first sheet housing unit is set in the sheet feeding device body, and malfunctions are prevented. Can be provided.
Furthermore, even if the stop position of the first sheet storage unit is shifted in the front-rear direction by adjusting the lateral registration, the back-and-forth movement of the first sheet storage unit and the displacement slide force in the front-rear direction applied to the first sheet and the storage unit are Since the backlash is made as small as possible and a lock mechanism is provided that has a holding force that resists the displacement slide force in the front-rear direction, the first sheet storage unit can be positioned with respect to the sheet feeder main body with a simple configuration even during registration adjustment. Therefore, it is possible to provide a sheet feeding device that can be reliably performed, the sheet conveyance performance is stable, the electrical connection between the first sheet storage portion and the sheet feeding device body can be reliably held, and the malfunction is prevented.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an image forming apparatus including a sheet feeding device according to the present invention.
FIG. 2 is a schematic front view of a sheet feeding device according to the present invention.
FIG. 3 is a schematic plan view of a paper feeding device according to the present invention.
FIG. 4 is a schematic perspective view of a lock claw driving device.
FIG. 5 is a partially enlarged view of the lock claw driving device.
FIG. 6 is a schematic plan view of a sheet feeding device according to the present invention.
FIG. 7 is a diagram illustrating a connection state between a connector of a first sheet storage unit and a sheet feeding apparatus main body.
FIG. 8 is an exploded perspective view showing a lateral registration adjusting mechanism of the paper feeding device of the present invention.
[Explanation of symbols]
20 Locking
Claims (3)
第１シート収容部の前後方向のガタ及び第１シート収容部にかかる前後方向の変位スライド力を、ガタは極力小さくし、且つ前後方向の変位スライド力に抗する保持力を持つロック機構を設けた ことを特徴とする給紙装置。A first sheet storage unit for stacking a plurality of sheets, a sheet feeding unit for feeding sheets one by one from the first sheet storage unit, and a first sheet storage unit disposed horizontally and in parallel with the first sheet storage unit. Two sheet storage units, sheet transfer means for collectively transferring the stacked sheets of the second sheet storage unit to the first sheet storage unit, and only the second sheet storage unit during the sheet feeding operation from the first sheet storage unit In a paper feeding device having a lock mechanism that can be pulled out substantially perpendicular to the transfer direction,
A locking mechanism is provided that minimizes the back-and-forth displacement slide force applied to the first sheet storage portion and the back-and-forth displacement slide force on the first sheet storage portion and has a holding force that resists the front-rear direction displacement slide force. A paper feeder characterized by this.
第１シート収容部と給紙装置本体の電気的な接離を行うコネクタを第１シート収容部と給紙装置本体側とにそれぞれ有し、コネクタの接合を確実に保持するための弾性部材を有し、
弾性部材により発生する前後方向の変位スライド力に抗する保持力を持つロック機構を設けた ことを特徴とする給紙装置。The sheet feeding device according to claim 1,
A connector for electrically connecting and separating the first sheet storage portion and the sheet feeder main body is provided on each of the first sheet storage portion and the sheet feeder main body, and an elastic member for securely holding the connector is provided. Have
A sheet feeding device comprising: a lock mechanism having a holding force that resists a displacement slide force in the front-rear direction generated by an elastic member.
第１シート収容部の横レジスト調整を、第１シート収容部を給紙装置本体にセットしたときの前後方向の停止位置調整で行う機構を有し、
第１シート収容部の停止位置がいずれの位置であっても、第１シート収容部の前後方向のガタ及び第１シート収容部にかかる前後方向の変位スライド力を、ガタは極力小さくし、且つ前後方向の変位スライド力に抗する保持力を持つロック機構を設けた ことを特徴とする給紙装置。The sheet feeding device according to claim 1 or 2,
Having a mechanism for adjusting the lateral registration of the first sheet storage unit by adjusting the stop position in the front-rear direction when the first sheet storage unit is set in the sheet feeder main body;
Regardless of the stop position of the first sheet storage unit, the backlash in the front-rear direction of the first sheet storage unit and the displacement slide force in the front-rear direction applied to the first sheet storage unit are as small as possible, and A paper feeding device comprising a lock mechanism having a holding force that resists a displacement sliding force in the front-rear direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001027079A JP3834207B2 (en) | 2001-02-02 | 2001-02-02 | Paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001027079A JP3834207B2 (en) | 2001-02-02 | 2001-02-02 | Paper feeder |
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| Publication Number | Publication Date |
|---|---|
| JP2002226065A JP2002226065A (en) | 2002-08-14 |
| JP3834207B2 true JP3834207B2 (en) | 2006-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001027079A Expired - Fee Related JP3834207B2 (en) | 2001-02-02 | 2001-02-02 | Paper feeder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103201685A (en) * | 2010-11-09 | 2013-07-10 | 佳能株式会社 | Unit moving device and image forming apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7591464B2 (en) | 2005-04-26 | 2009-09-22 | Canon Kabushiki Kaisha | Sheet feeding apparatus and image forming apparatus |
| JP4701103B2 (en) * | 2005-04-26 | 2011-06-15 | キヤノン株式会社 | Sheet feeding apparatus and image forming apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103201685A (en) * | 2010-11-09 | 2013-07-10 | 佳能株式会社 | Unit moving device and image forming apparatus |
| CN103201685B (en) * | 2010-11-09 | 2015-11-25 | 佳能株式会社 | Unit mobile device and imaging device |
| US9310752B2 (en) | 2010-11-09 | 2016-04-12 | Canon Kabushiki Kaisha | Unit moving device and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002226065A (en) | 2002-08-14 |
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