JPS62167136A - Paper supply device - Google Patents
Paper supply deviceInfo
- Publication number
- JPS62167136A JPS62167136A JP774886A JP774886A JPS62167136A JP S62167136 A JPS62167136 A JP S62167136A JP 774886 A JP774886 A JP 774886A JP 774886 A JP774886 A JP 774886A JP S62167136 A JPS62167136 A JP S62167136A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- paper feed
- cassette
- adapter
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、給紙装置、特に複写機等の作像装置に用紙を
1枚ずつ給紙するための給紙装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a paper feeding device, and particularly to a paper feeding device for feeding sheets one by one to an image forming device such as a copying machine.
従来技術とその問題点
従来、この種の給紙装置としては、特開昭59−780
31号公報、実開昭57−108238号公報に記載さ
れている様に、複写機等の作像装置本体に着脱可能であ
り、装着時には給紙装置から突出した用紙供給部を作像
装置本体に設けた給紙カセットの装填口に挿入する様に
したものが提供されている。Conventional technology and its problems Conventionally, this type of paper feeding device
As described in Publication No. 31 and Japanese Utility Model Application Publication No. 57-108238, it is removable from the main body of an image forming apparatus such as a copying machine, and when installed, the paper supply unit protruding from the paper feeding device is attached to the main body of the image forming apparatus. There is a paper feed cassette that is inserted into the loading slot of the paper feed cassette.
しかしながら、装置本体から用紙供給部が突出している
と、梱包上不利である。また、給紙カセットの装填口へ
挿入する際の用紙供給部の位置決めが上下左右方向共に
精密でなければならず、専用レールの微調整が必要とな
るし、精度が悪いと着脱時に用紙U(袷部がこじれると
いった問題点を有している。However, if the paper supply section protrudes from the main body of the apparatus, it is disadvantageous in terms of packaging. In addition, the positioning of the paper supply unit when inserting it into the loading slot of the paper feed cassette must be precise in both the vertical and horizontal directions, requiring fine adjustment of the dedicated rail, and if the precision is poor, the paper U ( There is a problem that the lining part can be twisted.
問題点を解決するための手段
そこで本発明に係る給紙装置は、用紙を作像装置本体に
送り込むための用紙供給部を給紙装置本体から分割して
作像装置本体の給紙カセット装填口に着脱可能なアダプ
タとしたことを特徴とずろ。Means for Solving the Problems Therefore, in the paper feeding device according to the present invention, a paper feeding section for feeding paper into the image forming device main body is separated from the paper feeding device main body, and a paper feeding cassette loading opening of the image forming device main body is provided. It features a detachable adapter.
実施例
以下、本発明に係る給紙装置の一実施例について添付図
面を参11貧シて説明する。Embodiment Hereinafter, one embodiment of a paper feeding device according to the present invention will be described with reference to the accompanying drawings.
本給紙装置は、第1図に示す様に、デスク(8)に搭載
された通常の電子写真複写機(1)の左側面に着脱可能
とし、各給紙容器(I O)、(10)、(10)を上
中下と三段に設けたしのである。各給紙容器(10)は
角部に設けた筒状の軸受は部(lりを給紙装置本体(2
0)に垂直方向に設けた支軸(21)に遊嵌することに
より、該支軸(21)を支点として第2図中実線で示す
給紙位置と二点鎖線で示す用紙補給位置との間で水平面
上で回転移動可能とされている。この場合、給紙位置と
は各給紙容器(10)に収容されている用紙を以下に詳
述する様に1枚ずつ給紙可能な位置であって、複写機(
+)の用紙搬送方向(矢印A)と同方向である。また、
用紙補給位置とは各給紙容器(10)を給紙位置から9
0°手萌側に、即ち、複写機(1)〔給紙装置本体(2
0))の正面に回転移動させた位置であり、複写機(1
)のオペレータは各給紙容器(10)をこの位置に回転
移動させた状態で用紙の補給を行うこととなる。As shown in Fig. 1, this paper feeding device is removably attached to the left side of an ordinary electrophotographic copying machine (1) mounted on a desk (8), and is attached to each paper feeding container (IO), (10 ), (10) are provided in three tiers, top, middle and bottom. Each paper feed container (10) has a cylindrical bearing provided at the corner.
0), the support shaft (21) is used as a fulcrum to move between the paper feeding position shown by the solid line in FIG. 2 and the paper replenishing position shown by the two-dot chain line. It is said that it is possible to rotate and move on a horizontal plane between. In this case, the paper feed position is a position where the paper stored in each paper feed container (10) can be fed one by one as described in detail below, and the copying machine (
+) is the same direction as the paper conveyance direction (arrow A). Also,
What is the paper supply position? Move each paper feed container (10) up to 9 points from the paper feed position.
On the 0° hand side, that is, the copying machine (1) [paper feeder main body (2)
This is the position rotated to the front of the copying machine (1).
) The operator replenishes paper while rotating each paper feed container (10) to this position.
ここで、各給紙容器(10)の給紙位置におけるロック
手段について、第3図、第4図を参照して説明する。Here, the locking means at the paper feeding position of each paper feeding container (10) will be explained with reference to FIGS. 3 and 4.
このロック手段は、各給紙容器(10)の側板(12)
に固定した四部(13a)を有するカム(13)と、給
紙装置本体(20)のフレーム(22)の開口(22a
)から突出した仮ばね(23)の先端に装着したローラ
(24)とで構成され、ローラ(24)は各段ごとに設
置されている。給紙容器(10)を給紙位置に回転させ
ると、ローラ(24)が板ばね(23)のばね力にてカ
ム(13)の凹部(13a)に圧接し、給紙容器(10
)を給紙位置にロックする。This locking means is provided on the side plate (12) of each paper feed container (10).
A cam (13) having four parts (13a) fixed to the opening (22a) of the frame (22) of the paper feeder main body (20).
) and a roller (24) attached to the tip of a temporary spring (23) protruding from the spring (23), and the roller (24) is installed at each stage. When the paper feed container (10) is rotated to the paper feed position, the roller (24) is pressed against the recess (13a) of the cam (13) by the spring force of the leaf spring (23), and the paper feed container (10) is pressed against the recess (13a) of the cam (13).
) in the paper feed position.
このロックは、給紙容器(10)を正面側に強制的回転
させることにより、カム(13)が板ばね(23)のば
ね力に抗してローラ(24)を乗り越えて解除される。This lock is released by forcibly rotating the paper feed container (10) to the front side, so that the cam (13) overcomes the spring force of the leaf spring (23) and overcomes the roller (24).
なお、各給紙容器(lO)にはこの解除のための取手(
14)(第1図参照)か固定されている。In addition, each paper feed container (lO) has a handle (
14) (see Figure 1) is fixed.
また、給紙装置本体(20)のフレーム(22)には各
段ごとにローラ(25)、(26)か取付けられ、この
ローラ(25)、(26) l:各給紙容器(10)の
側板(12)に形成した溝部(15)が当接することに
より、各給紙容器(10)の給紙位置での上下方向の支
持1位置決めが行われる。ローラ(25)。Further, rollers (25) and (26) are attached to the frame (22) of the paper feeder main body (20) for each stage, and these rollers (25) and (26) l: Each paper feed container (10) By contacting the grooves (15) formed in the side plates (12) of the paper feed containers (10), vertical support 1 positioning of each paper feed container (10) at the paper feed position is performed. Laura (25).
(26)は人口側と奥側とで段違いに設置され、入口側
のローラ(25)は溝部(15)の上面(15a)に当
接し、奥側のローラ(26)は下面(15b)に当接し
、給紙容器(10)の装着時の強度アップを図っている
。さらに、各段ごとに取付けたスイッチ(27)(第1
1a図参照)のアクチュエータ(27a)がフレーム(
22)の開口(22b)から給紙位置に突出し、該アク
チュエータ(27a)に給紙容器(I O)の側板(1
2)に形成した突片(12a)か当接することによりス
イッチ(27)がオンし、給紙容器(lO)が給紙位置
にセットされたことが検出される様になっている。(26) are installed at different levels on the population side and the back side, the roller (25) on the entrance side is in contact with the top surface (15a) of the groove (15), and the roller (26) on the back side is in contact with the bottom surface (15b). The paper feed container (10) is brought into contact with the paper feed container (10) to increase its strength when attached. Furthermore, a switch (27) (first
The actuator (27a) of the frame (see figure 1a)
The actuator (27a) protrudes from the opening (22b) of the paper feed container (I
The switch (27) is turned on by contact with the protruding piece (12a) formed in 2), and it is detected that the paper feed container (lO) is set at the paper feed position.
一方、本給紙装置では、第5図、第6図に示す様に、各
給紙容器(10)を用紙h1「給位置に回転移動させた
場合、空いた給紙位置に他の給紙カセッ1−(90)を
着脱可能である。この給紙力セント(90)の装着時に
おける支持は、奥側は給紙カセッ)’(90)の側板に
形成した図示しない溝部〔前記1待部(15)と同じら
の〕の上下面が前記ローラ(25)、(26)に当接し
、正面側は各給紙容器(10)に設けた上下の突起(1
0a)、(l Ob)及び軸受けgPI(11)に給紙
カセット(90)の上下面及び側面か当接することによ
り行われる。また、位置決めら前記ローラ(24)が給
紙カセット(90)の側板に設けた図示ないカム〔前記
カム(I3)と同じらの〕に嵌合することにより行われ
る。On the other hand, in this paper feeding device, as shown in FIGS. 5 and 6, when each paper feeding container (10) is rotated to the paper h1 feeding position, another paper feeding position is placed in the vacant paper feeding position. The paper cassette 1-(90) is removable.The paper feeding power center (90) is supported by a groove (not shown) formed on the side plate of the paper feeding cassette (90) on the back side. The upper and lower surfaces of the portion (15) and the same one are in contact with the rollers (25) and (26), and the front side is in contact with the upper and lower protrusions (1) provided on each paper feed container (10).
This is done by bringing the upper and lower surfaces and side surfaces of the paper feed cassette (90) into contact with the bearing gPI (11) and the bearing gPI (11). Further, the positioning is performed by fitting the roller (24) into a cam (not shown) (same as the cam (I3)) provided on the side plate of the paper feed cassette (90).
この様に、給紙容器(10)を用紙補給位置に回転移動
させた場合、空いた給紙位置に給紙カセット(90)を
着脱可能とすると、給紙容器(10)をいちいち給紙装
置本体(20)に対して着脱することなく、給紙カセッ
ト(90)を給紙装置本体(20)に着脱することかで
きる。In this way, when the paper feed container (10) is rotated to the paper supply position, if the paper feed cassette (90) is removably attached to the empty paper feed position, the paper feed container (10) can be moved to the paper feed device one by one. The paper feed cassette (90) can be attached to and detached from the paper feed device main body (20) without being attached to or detached from the main body (20).
ところで、前記給紙容器(lO)は、略箱状をなし、底
板(19X第7図参照)は後端部(19a)を支点とし
て上下方向に回動自在であり、用紙(P)は底板(19
)−ヒに積み重ねて載置される。また、6給紙容器(1
0)上にはカバー(18)が被せられている。このカバ
ー(18)は第3図に示す孔(12b)に挿入した軸部
(図示せず)を支点とじて上下方向に回動自在であり、
先端部は以下に説明するピックアップローラ(30)を
用紙(P)に圧接させるために切欠かれている。By the way, the paper feed container (lO) has a substantially box shape, and the bottom plate (19X, see FIG. 7) is vertically rotatable about the rear end (19a), and the paper (P) is attached to the bottom plate. (19
) - stacked on top of each other. In addition, 6 paper feed containers (1
0) A cover (18) is placed on top. This cover (18) is rotatable in the vertical direction about a shaft (not shown) inserted into the hole (12b) shown in FIG. 3 as a fulcrum,
The leading end is cut out in order to press a pickup roller (30), which will be described below, against the paper (P).
次に、本給紙装置の内部構造及び複写機(1)への接続
構造について第7図以下を参照して説明する。Next, the internal structure of this paper feeding device and the connection structure to the copying machine (1) will be explained with reference to FIG. 7 and subsequent figures.
第7図に示す様に、本給紙装置本体(20)は、三段の
給紙容器(10)に対応したピックアップローラ(30
)、(30)、(30)、押上げアーム(31)。As shown in FIG. 7, the paper feeding device main body (20) has a pickup roller (30) corresponding to the three-stage paper feeding container (10).
), (30), (30), push-up arm (31).
(31)、(31) 、正転ローラ(33)と逆転ロー
ラ(34)とで構成された周知のサバキ手段(32)。(31), (31) A well-known cleaning means (32) composed of a forward rotation roller (33) and a reverse rotation roller (34).
(32)、(32) 、各ザバキ手段(32)の給紙方
向下流側の直後に位置する一対ずつの搬送ローラ(35
a)、(35b)、(35c)及び各ローラ間等に設け
た用紙(P)のガイド部材等にて構成されている。(32), (32), a pair of conveying rollers (35) located immediately after the paper feeding direction downstream of each zabaki means (32)
It is composed of a), (35b), (35c), and a paper (P) guide member provided between each roller.
面記給紙容gW(10)か給紙位置にセットされろと、
前記スイッチ(27)の検出信号に基づいて以下に説明
する様に押上げアーム(31)が上方に回動すると共に
底板(19)も上方に回動し、底板(19)上に載置さ
れた用紙(P)の上面をピックアップローラ(30)に
当接させる。これにて、ピックアップローラ(30)が
自重で用紙(P)に圧接することとなり、用紙上面レベ
ルを図示しないセンサが検出すると押上げアーム(31
)の上動を停止せしめ、用紙(P)を一定の高さに保持
する。Please set it to paper feed capacity gW(10) or paper feed position.
Based on the detection signal of the switch (27), the push-up arm (31) rotates upward as described below, and the bottom plate (19) also rotates upward, so that the push-up arm (31) is placed on the bottom plate (19). The upper surface of the paper (P) is brought into contact with the pickup roller (30). As a result, the pickup roller (30) comes into pressure contact with the paper (P) by its own weight, and when a sensor (not shown) detects the top surface level of the paper, the push-up arm (31
) to stop the upward movement and hold the paper (P) at a constant height.
給紙は、複写機(1)側にてオペレータにより予め選択
された各段のピックアップローラ(30)が回転するこ
とにより、用紙(P)が最上層のから矢印(Δ)方向に
送り出され、ザバキ手段(32)にて1枚ずつさばかれ
、上段にあっては搬送ローラ(35a)を通じて、中段
にあっては搬送ローラ(35b)から搬送ローラ(35
a)を通じて、下段にあっては搬送ローラ(35c)か
ら搬送ローラ(35b)、(35a)を通じて行われる
。搬送ローラ(35a)から給紙された1枚の用紙(P
)は、以下に説明する用紙供給部アダプタ(40)に送
り込まれ、搬送ローラ(46)、(2)及び一対の搬送
ローラ(3)にて図示しない転写部へと搬送されていく
。Paper feeding is carried out by rotating the pickup rollers (30) of each stage selected in advance by the operator on the copying machine (1) side, so that the paper (P) is sent out from the top layer in the direction of the arrow (Δ). The sheets are sorted one by one by the zabaki means (32), and those in the upper stage are passed through the conveyance roller (35a), and those in the middle stage are separated from the conveyance roller (35b) to the conveyance roller (35).
In the case of the lower stage, the transfer is performed from the conveyance roller (35c) to the conveyance rollers (35b) and (35a) through a). One sheet of paper (P
) is fed into a paper supply unit adapter (40) described below, and is conveyed to a transfer unit (not shown) by conveyance rollers (46), (2) and a pair of conveyance rollers (3).
前記ピックアップローラ(30)とサバキ手段(32)
とは給紙通路の中央部に設置され、搬送ローラ(35a
)、(35b)、(35c)も給紙通路の中央部にのみ
設置されている(第8図参照)。この様に設置するこ七
により、中央基準方式で給紙する場合は勿論のこと、片
側基準方式で給紙する場合にも、たとえザバキ手段(3
2)と搬送ローラ(35a)、(35b)、(35c)
とが用紙(P、)の中央部に位置していなくとも、用紙
(P2)かスキューすることはない。なぜなら、用紙(
P)がザバキ手段(32)にてさばかれた後、直後の搬
送ローラ(35a)。The pickup roller (30) and the cleaning means (32)
is installed in the center of the paper feed path, and the transport roller (35a
), (35b), and (35c) are also installed only in the center of the paper feed path (see FIG. 8). By installing this device in this way, it is possible to feed paper not only by the center reference method, but also by the one-sided reference method, even if the zabaki means (3
2) and conveyance rollers (35a), (35b), (35c)
Even if the paper (P2) is not located at the center of the paper (P,), the paper (P2) will not be skewed. Because paper (
The conveying roller (35a) immediately after the paper P) is sorted by the cutting means (32).
(35b)又は(35c)に送られろ際に、その搬送力
と搬送ローラ(35a)、(35b)又は(35c)に
よる搬送抵抗力とが同一直線上に設定されているためで
ある。This is because the conveyance force and the conveyance resistance force by the conveyance rollers (35a), (35b), or (35c) are set on the same straight line when being conveyed to (35b) or (35c).
なお、ピックアップローラ(30)による用紙(P)の
ピックアップ時、即ち用紙(P)がザバギ手段(32)
に噛み込まれるまでは、重み合ねられている用紙(P)
間の摩擦がピックアップ抵抗として作用するため、ピッ
クアップローラ(30)が用紙(P)の中央部に位置し
ていないと、ピックアップ時とピックアップ抵抗とが同
一直線上に存在せず、スキューのおそれはある。本給紙
装置ではこのスキュー防止するため、給紙容器(10)
内に用紙両側規制板(図示せず)が設置されている。Note that when the paper (P) is picked up by the pickup roller (30), that is, the paper (P) is
The paper (P) is weighted until it is bitten by
Since the friction between the two acts as pickup resistance, if the pickup roller (30) is not located at the center of the paper (P), the pickup and pickup resistance will not be on the same straight line, and there is a risk of skew. be. In this paper feeder, in order to prevent this skew, the paper feed container (10)
Paper both side regulating plates (not shown) are installed inside.
ところで、前記用紙供給部アダプタ(40)は、第9図
、第10図に示す様に、給紙装置本体(20)とは別体
に構成され、断面矩形のケーシング(41)に用紙下ガ
イド板(42)、用紙上ガイド板(43)と搬送ローラ
(46)を設けたものである。このアダプタ(40)は
複写機(1)の給紙カセット装填口(4)に着脱可能で
あり、装管時には両側の突起(44)(他方は図示せず
)が装填口(4)内に設けた板ばね(5)、(5)に係
合して抜は止めか図られ、複写機(+)内に設けた搬送
ローラ(2)が搬送ローラ(46)に接触する。また、
アダプタ(40)の上下左右方向は両側に設けた突片(
45)、(45)が、装填口(4)内に設けた側板(6
)、(6)に当接することにより行われている。By the way, as shown in FIGS. 9 and 10, the paper supply unit adapter (40) is configured separately from the paper feeder main body (20), and has a paper lower guide in a casing (41) having a rectangular cross section. A plate (42), a paper upper guide plate (43) and a conveyance roller (46) are provided. This adapter (40) can be attached to and removed from the paper cassette loading slot (4) of the copying machine (1), and when loading the paper cassette, the protrusions (44) on both sides (the other not shown) are inserted into the loading slot (4). It is engaged with provided leaf springs (5), (5) to prevent removal, and the conveyance roller (2) provided in the copying machine (+) comes into contact with the conveyance roller (46). Also,
The vertical and horizontal directions of the adapter (40) are provided with protrusions (
45), (45) is the side plate (6) provided inside the loading port (4).
), (6).
なお、複写機(1)に設けたいまひとつの装填口(7)
(第1図、第7図参照)は給紙カセットを装着するため
のらのである。In addition, there is another loading port (7) provided in the copying machine (1).
(See Figures 1 and 7) is a slot for installing a paper feed cassette.
一方、給紙装置本体(20)は、第1図、第7図に示す
様に、脚部(50)、(51)間に平行に設けたレール
(52)、(52)上をコロ(53)、(53)で移動
自在に設置されている。脚部(50)はねじ締め等の手
段にてデスク(8)の側面に固定され、脚部(51)は
アジャストストッパ(54)にて高さ調整が可能とされ
ている。従って、給紙装置本体(70)はレール(52
)、(52)上を給紙方向(矢印A)に移動させること
により、搬送ローラ(35a)が位置する平坦な開口(
36X第10図参照)が前記アダプタ(40)に当接す
ると共に、給紙装置本体(20)に取付けたガイドピン
(37)、(37)がアダプタ(40)のガイド孔(4
1a)、(41a)に突入し、用紙通路が一体化される
。ガイド孔(41a)、(41a)は上下方向の長孔と
され、専ら用紙通路の左右方向の位置決めを行う。この
とき、給紙装置本体(20)と複写機(1)との連結は
通常の板ばね方式にてロックされ、かつ給紙装置本体(
20)に固定した磁性体(38)がデスク(8)の側面
に固定したマグネット(9)に吸着することにより、下
部の固定及びロック感を得る様になっている。On the other hand, as shown in FIGS. 1 and 7, the paper feeder main body (20) runs on rails (52) and (52) parallel to each other between the legs (50) and (51). 53), (53) are movably installed. The leg portion (50) is fixed to the side surface of the desk (8) by means such as screw tightening, and the height of the leg portion (51) can be adjusted using an adjustment stopper (54). Therefore, the paper feeder main body (70) is connected to the rail (52).
), (52) in the paper feeding direction (arrow A), the flat opening (
36X (see Figure 10) comes into contact with the adapter (40), and the guide pins (37) attached to the paper feeder main body (20) contact the guide hole (4) of the adapter (40).
1a) and (41a), and the paper path is integrated. The guide holes (41a), (41a) are elongated holes in the vertical direction, and are used exclusively for positioning the paper path in the left-right direction. At this time, the connection between the paper feeder main body (20) and the copying machine (1) is locked by a normal leaf spring method, and the paper feeder main body (20) is locked with the normal leaf spring method.
The magnetic body (38) fixed to the desk (20) is attracted to the magnet (9) fixed to the side surface of the desk (8), thereby providing a feeling of fixation and locking of the lower part.
前述のとおり、複写機(1)への用紙供給部をアダプタ
形式として、該アダプタ(40)を給紙カセット装川口
(4)へ着脱可能とすることにより、用紙供給部が給紙
装置本体(20)から突出することがなく、梱包上有利
であるし、給紙装置本体(20)は左右方向の位置決め
を考慮するだけでよく、上下方向の位置決めはそれ程精
密である必要はない。As mentioned above, the paper supply section to the copying machine (1) is in the form of an adapter, and the adapter (40) is removably attached to the paper feed cassette loading port (4), so that the paper supply section can be connected to the main body of the paper feed device ( 20), which is advantageous in terms of packaging, and it is only necessary to consider the positioning of the sheet feeder main body (20) in the left and right directions, and the positioning in the vertical direction does not need to be so precise.
次に、第11a図、第11b図を参照17て給紙容器(
10)の底板押上げ機構について説明する。Next, with reference to FIGS. 11a and 11b, the paper feed container (17) is
10) The bottom plate push-up mechanism will be explained.
この底板押上げ機構は、各段の給紙容器(10)に対応
して設置され、概略、中央部に設けた押上げアーム(3
1)と、該押上げアーム(31)と支軸(51)を介し
て一体的に回動可能に設けた扇形ギヤ(50)と、取付
は仮(53)にモータ(56)、ギヤ機構(57)を取
付けた押上げユニット(52)とから構成されている。This bottom plate push-up mechanism is installed corresponding to the paper feed container (10) of each stage, and is roughly provided with a push-up arm (3
1), a fan-shaped gear (50) that is rotatable integrally through the push-up arm (31) and a support shaft (51), and a motor (56) and a gear mechanism that are temporarily attached (53). (57) and a push-up unit (52).
取付は板(53)は筒状の軸受は部(54)をフレーム
(22)に固定した支軸(28)に遊嵌することにより
該支軸(28)を支点として回動自在に装着され、矢印
(a)方向にはストッパ(60)にて位置規制されてい
る。また、取付は板(53)の下部に固定したピン(5
5)はフレーム(22)に形成した長孔(22c)から
給紙位置に突出し、前記給紙容器(lO)の側板(12
)に固定したカム板(16)の突部(16a)及び突片
(12aX第3図参照)に固定した仮ばねが係合可能で
ある。ギヤ機構(57)は小径ギヤ部と大径ギヤ部とか
らなる減速ギヤ(57a)、(57b)、(57c)に
て構成され、初段の減速ギヤ(57a)の大径ギヤ部は
取付は板(53)の上部に固定したモータ(56)の出
力軸に取付けたつ十−ムギヤ(58)と噛合している。For installation, the plate (53) is rotatably mounted around the support shaft (28) as a fulcrum by loosely fitting the cylindrical bearing part (54) onto the support shaft (28) fixed to the frame (22). , the position is regulated by a stopper (60) in the direction of arrow (a). In addition, for installation, a pin (5
5) protrudes from the elongated hole (22c) formed in the frame (22) to the paper feeding position, and is attached to the side plate (12) of the paper feeding container (lO).
) can be engaged with a temporary spring fixed to the protrusion (16a) of the cam plate (16) and the protrusion (12aX, see FIG. 3). The gear mechanism (57) is composed of reduction gears (57a), (57b), and (57c) consisting of a small diameter gear part and a large diameter gear part, and the large diameter gear part of the first stage reduction gear (57a) is not attached. It meshes with a double gear (58) attached to the output shaft of a motor (56) fixed to the top of the plate (53).
最終段の減速ギヤ(57c)の小径部は取付は仮(53
)が垂直方向に起立しているとき(第11b図参照)、
扇形ギヤ(50)と噛合し、取付は板(53)が矢印(
a)方向に回動したとき(第11a図参照)、扇形ギヤ
(50)から離間する。The small diameter part of the final stage reduction gear (57c) is temporarily installed (53c).
) stands vertically (see Figure 11b),
It meshes with the fan-shaped gear (50), and the plate (53) is attached as shown by the arrow (
When it rotates in the direction a) (see Figure 11a), it separates from the sector gear (50).
面記扇形ギヤ(50)は押上げアーム(31)と共に一
体的に回動可能であるか、矢印(a)方向には弾性材(
61a)を設けたストッパ(61)にて位置規制される
。The plane fan-shaped gear (50) can be rotated integrally with the push-up arm (31), or can be rotated in the direction of the arrow (a) with an elastic material (
The position is regulated by a stopper (61) provided with a stopper (61a).
以上の構成からなる底板押上げ機構は、給紙容器(lO
)か給紙位置にセットされる前、第11a図の状態にあ
り、給紙容器(10)が給紙位置に回転移動すると、板
ばね(17)がビン(55)を押上げ、ユニッ1−(5
2)は支軸(28)を支点として矢印(a)とは逆方向
に回動し、減速ギヤ(57c)の小径部が扇形ギヤ(5
0)に噛合する(第11b図参照)。The bottom plate push-up mechanism with the above configuration is a paper feed container (lO
) is in the state shown in FIG. 11a before being set in the paper feed position, and when the paper feed container (10) rotates to the paper feed position, the leaf spring (17) pushes up the bin (55) and the unit 1 -(5
2) rotates in the opposite direction of the arrow (a) about the support shaft (28), and the small diameter part of the reduction gear (57c) is connected to the sector gear (57c).
0) (see Figure 11b).
同時に、突片(12a)がアクチュエータ(27a)を
押圧してスイッチ(27)がオンし、モータ(56)が
起動される。モータ(56)の回転はウオームギヤ(5
8)から減速ギヤ(57a)、(57b)、(57c)
を介して扇形ギヤ(50)に伝達され、扇形ギヤ(50
)が支軸(51)を支点として矢印(a)とは逆方向に
回動すると共に、押上げアーム(31)も同方向(上方
)に回動し、給紙容器(10)内の底板(I9)を押上
げろ。底板(19)上の用紙(P)の上面がピックアッ
プローラ(30)に当接し、該上面が図示しないセンサ
にて検出されると、モータ(56)が停止され、ギヤ機
構(57)、g形ギャ(50)、押上げアーム(31)
の動作が停止する。At the same time, the protrusion (12a) presses the actuator (27a), turning on the switch (27) and starting the motor (56). The rotation of the motor (56) is controlled by the worm gear (5
8) to reduction gears (57a), (57b), (57c)
is transmitted to the sector gear (50) through the sector gear (50).
) rotates in the opposite direction to the arrow (a) about the support shaft (51), and the push-up arm (31) also rotates in the same direction (upward), pushing the bottom plate inside the paper feed container (10) Push up (I9). When the top surface of the paper (P) on the bottom plate (19) comes into contact with the pickup roller (30) and the top surface is detected by a sensor (not shown), the motor (56) is stopped and the gear mechanism (57), g Shape gear (50), push-up arm (31)
operation stops.
給紙はこの状態にて行われ、用紙(P)が少なくなって
用紙上面が低下し、それがセンサにて検出されると、再
度モータ(56)が起動され、扇形ギヤ(50)と共に
押上げアーム(31)が矢印(a)とは逆方向に回動し
、用紙上面がセンサに検出されるまで底板(I9)を押
上げる。以下、用紙(P)が一定枚数給紙されていくご
とにこの動作が繰り返される。Paper feeding is performed in this state, and when the paper (P) is running low and the top surface of the paper is lowered, and this is detected by the sensor, the motor (56) is started again and the motor (56) is pushed together with the fan-shaped gear (50). The lifting arm (31) rotates in the opposite direction to the arrow (a) and pushes up the bottom plate (I9) until the top surface of the paper is detected by the sensor. Thereafter, this operation is repeated every time a certain number of sheets (P) are fed.
ところで、扇形ギヤ(50)には円弧状の突片(51a
)が形成され、透過型のフォトセンサ(62)がこの突
片(51a)を挟んだ状態で設置されている。即ち、押
上げアーム(31)と共に扇形ギヤ(50)が第11b
図中二点鎖線位置まで回動し、突片(51a)の下端が
フォトセンサ(62)の光軸から離れると該センサ(6
2)がオンし、給紙容器(lO)内の用紙(P)が残り
少なくなったことを複写機(1)の操作パネル(la)
に表示する。本実施例においてこの様な用紙エンプティ
の表示が行われのは、用紙(P)の残量が約250枚程
度まで減少しだときである。By the way, the fan-shaped gear (50) has an arc-shaped protrusion (51a).
) is formed, and a transmission type photosensor (62) is installed sandwiching this protrusion (51a). That is, the fan-shaped gear (50) together with the push-up arm (31)
When the lower end of the protruding piece (51a) moves away from the optical axis of the photosensor (62) by rotating to the position indicated by the two-dot chain line in the figure, the sensor (62)
2) is turned on, and the operation panel (la) of the copying machine (1) indicates that the paper (P) in the paper feed container (lO) is running low.
to be displayed. In this embodiment, such a paper empty display is performed when the remaining amount of paper (P) starts to decrease to about 250 sheets.
一方、給紙容器(lO)が給紙位置から離脱するとき、
ピン(55)が給紙容器(lO)の側板(12)に設け
たカム板(16)の突部(16a)に押圧されて取付け
Fi、(53)が矢印(a)方向に回動し、最終段の減
速ギヤ(57c)が扇形ギヤ(50)から離間し、底板
(19)と用紙(P)の重みにて押上げアーム(31)
と共に扇形ギヤ(50)がストッパ(61)に当接する
まで矢印(a)方向に回動し、底板(19)が給紙容器
(10)の底部に落ち込む。これにて、用紙(P)の上
面とピックアップローラ(30)との当接が解除される
。On the other hand, when the paper feed container (lO) leaves the paper feed position,
The pin (55) is pressed by the protrusion (16a) of the cam plate (16) provided on the side plate (12) of the paper feed container (lO), and the attachment Fi (53) rotates in the direction of the arrow (a). , the final stage reduction gear (57c) separates from the sector gear (50), and the weight of the bottom plate (19) and paper (P) pushes up the arm (31).
At the same time, the fan-shaped gear (50) rotates in the direction of arrow (a) until it comes into contact with the stopper (61), and the bottom plate (19) falls into the bottom of the paper feed container (10). This releases the contact between the top surface of the paper (P) and the pickup roller (30).
以上の構成において、最終段の減速ギヤ(57c)が扇
形ギヤ(50)と噛合し、押上げアーム(31)にて底
板(19)を押上げているとき、押上げアーム(31)
には用紙(P)と底板(19)の重量が作用し、この荷
重は扇形ギヤ(50)を矢印(a)方向に復帰させろ力
として作用し、最終段の減速ギヤ(57c)との間でい
わゆる歯飛が発生するおそれを有している。しかし、本
実施例では、扇形ギヤ(50)と減速ギヤ(57c)と
の噛合位置が扇形ギヤ(50)の支軸(5I)と取付は
板(53)の支軸(28)との間に設定され、かつ両者
の噛合関係が扇形ギヤ(50)を矢印(a)方向に回動
さける負荷にて、最終段の減速ギヤ(57c)が扇形ギ
ヤ(50)に噛合する方向に付勢される様に構成されて
いるため、歯飛びが生じることはない。このことは、両
者の噛合状態において、押上げユニット(52)が支軸
(28)を支点として常時矢印(a)とは逆方向の付勢
力を受けることを怠味し、噛合状態を維持するために押
上げユニット(52)をばね等の手段にて矢印(a)と
は逆方向に付勢する必要はなく、前記仮ばね(17)が
ピン(55)に当接するのも減速ギヤ(57c)を扇形
ギヤ(50)と噛合させろ当初だけであり、噛合した後
ピン(55)は仮ばね(17)から離れている。また、
押上げユニット(52)は給紙容器(10)が給紙位置
から離間する際、ピン(55)かカム板(1G)にて下
方に付勢された後は取付は板(53)がストッパ(60
)に当接するまで自重で矢印(a)方向に回動する。従
って、給紙容器(!0)が給紙位置に対して着脱される
とき、押上げユニット(52)を動作させる力は押上げ
ユニット(52)を略垂直位置近傍で回動させる力だけ
でよく、かなり軽減される。In the above configuration, when the final stage reduction gear (57c) meshes with the sector gear (50) and pushes up the bottom plate (19) with the push-up arm (31), the push-up arm (31)
The weight of the paper (P) and the bottom plate (19) acts on this, and this load acts as a force to return the fan-shaped gear (50) in the direction of the arrow (a), causing a gap between it and the final stage reduction gear (57c). There is a risk that so-called tooth skipping may occur. However, in this embodiment, the meshing position of the sector gear (50) and the reduction gear (57c) is between the support shaft (5I) of the sector gear (50) and the support shaft (28) of the plate (53). The final stage reduction gear (57c) is biased in the direction of meshing with the sector gear (50) under a load that prevents the sector gear (50) from rotating in the direction of the arrow (a). Since the structure is such that the teeth are not skipped, tooth skipping does not occur. This means that when the two are engaged, the push-up unit (52) always receives a biasing force in the direction opposite to the arrow (a) using the support shaft (28) as a fulcrum, thereby maintaining the engaged state. Therefore, it is not necessary to bias the push-up unit (52) in the direction opposite to the arrow (a) using means such as a spring, and the reason why the temporary spring (17) contacts the pin (55) is due to the reduction gear ( 57c) is engaged with the fan-shaped gear (50) only at the beginning, and after the engagement, the pin (55) is separated from the temporary spring (17). Also,
When the paper feed container (10) moves away from the paper feed position, the push-up unit (52) is urged downward by the pin (55) or the cam plate (1G), and then the plate (53) is attached as a stopper. (60
) by its own weight in the direction of arrow (a). Therefore, when the paper feed container (!0) is attached to and removed from the paper feed position, the force that operates the push-up unit (52) is only the force that rotates the push-up unit (52) near the approximately vertical position. Well, it's significantly reduced.
なお、最終段の減速ギヤ(57c)の扇形ギヤ(50)
に対する噛合を確実なものとし、板ばね(17)による
押上げユニッ1−(52)の回動力を一層軽減するため
、押上げユニット(52)自体をばね手段にて矢印(a
)とは逆方向に軽く付勢しても良い。In addition, the sector gear (50) of the final stage reduction gear (57c)
In order to ensure the engagement with the push-up unit 1-(52) and to further reduce the rotational force of the push-up unit 1-(52) caused by the leaf spring (17), the push-up unit (52) itself is moved in the direction indicated by the arrow (a) by spring means.
) may be applied lightly in the opposite direction.
次に、ピックアップローラ(30)の支持機構について
第12図、第13a図〜第13b図を参照して説明する
。Next, the support mechanism for the pickup roller (30) will be explained with reference to FIGS. 12 and 13a to 13b.
各段のピックアップローラ(30)は、前記サバキ手段
(32)をも′4成する正転ローラ(33)の支軸(7
0)に回動自在に装着したフレーム(71)の一端に支
軸(72)を介して回転自在に取付けられている。ピッ
クアップローラ(30)は自重で正転ローラ支軸(70
)を支点として下方に回動し、前述の如く用紙(P)の
上面に圧接する。そして、下方ヘの回動位置はフレーム
(71)の突片(71a)が給紙装置本体(20)のフ
レーム(39)に設けたストッパ片(39a)に下方か
ら当接することにより規制される。The pick-up roller (30) at each stage is connected to a support shaft (7) of a normal rotation roller (33) which also serves as the cleaning means (32).
0) is rotatably attached to one end of a frame (71) via a support shaft (72). The pickup roller (30) is rotated by its own weight to the normal rotation roller support shaft (70).
) as a fulcrum and rotates downward, and presses against the upper surface of the paper (P) as described above. The downward rotational position is regulated by the projecting piece (71a) of the frame (71) coming into contact with the stopper piece (39a) provided on the frame (39) of the paper feeder main body (20) from below. .
このピックアップローラ(30)と正転ローラ(33)
とは着脱が容易な様に各支軸(70)、(72)の端部
に片持ち状態にて装着され、矢印(b)方向の回転力を
伝達される。また、各ローラ(30)。This pickup roller (30) and normal rotation roller (33)
is attached in a cantilevered manner to the end of each support shaft (70), (72) so that it can be easily attached and detached, and the rotational force in the direction of arrow (b) is transmitted. Also, each roller (30).
(33)にはワンウェイクラッヂ(73)、(74)が
設置され、ローラ(30)、(33)自体の矢印(b)
方向の回転に対してはフリーとされている。これは、用
紙(P)の給紙時におけろ従動抵抗を軽減するためであ
る。One-way crudges (73) and (74) are installed at (33), and the arrows (b) on the rollers (30) and (33) themselves
It is considered free for rotation in the direction. This is to reduce the driven resistance when feeding the paper (P).
一方、前記フレーム(71)の奥方側部に固定した解除
ピン(75)には給紙容器(10)の側板(12)先端
に形成したカム部(12c)が係合可能であり、このカ
ム部(12c)は傾斜面(y、)、(y、)を汀する山
形をなしている。即ち、給紙容器(10)が給紙位置に
セットされる際に、まず、カム部(i2c)の傾斜面(
yl)が解除ピン(75)に当接してフレーム(71)
と共にピックアップローラ(30)を押上げ(第13a
図−第13b図参照)、完全にセットされると解除ピン
(75)は傾斜面(y2)に落ち込み、ピックアップロ
ーラ(30)か自重で用紙(P)の上面に圧接すること
となる(第13c図参照)。給紙容器(10)が給紙位
置から離脱する際には、前記とは逆に、まず、カム部(
12c)の傾斜面(y、)が解除ピン(75)に当接し
てフレーム(71)と共にピックアップローラ(30)
を押上げ(第13c図−第13b図参照)、その後解除
ピン(75)は傾斜面(y2)に沿って落ち込み、ピッ
クアップローラ(30)はフレーム(7I)の突片(7
1a)がストッパ片(39a)に当接するまで下動する
(第13a図参照)。On the other hand, a cam portion (12c) formed at the tip of the side plate (12) of the paper feed container (10) can be engaged with a release pin (75) fixed to the rear side of the frame (71), and this cam The portion (12c) is in the shape of a mountain with slopes (y,), (y,). That is, when the paper feed container (10) is set at the paper feed position, first the inclined surface (
yl) comes into contact with the release pin (75) and the frame (71)
and push up the pickup roller (30) (No. 13a)
When fully set, the release pin (75) falls onto the inclined surface (y2) and comes into pressure contact with the top surface of the paper (P) by the pickup roller (30) or its own weight (see Figure 13b). (See Figure 13c). When the paper feed container (10) leaves the paper feed position, contrary to the above, first the cam part (
The inclined surface (y,) of 12c) comes into contact with the release pin (75) and the pickup roller (30) together with the frame (71)
(see Figures 13c to 13b), then the release pin (75) falls down along the slope (y2), and the pickup roller (30) pushes up the protrusion (7) of the frame (7I).
1a) moves downward until it comes into contact with the stopper piece (39a) (see Figure 13a).
この様に、本実施例では、給紙容器(10)が給紙位置
から用紙補給位置に回転移動し始める際に、その回転移
動に連係してピックアップローラ(30)が若干持ち上
げられる。これにて、給紙容器(10)が給紙位置から
離脱する際に、ピックアップローラ(30)が最上層の
用紙(P)から確実に離れ、最上層の用紙(P)がピッ
クアップローラ(30)に付着してとり残されてしまう
ことはない。In this manner, in this embodiment, when the paper feed container (10) begins to rotate from the paper feed position to the paper replenishment position, the pickup roller (30) is slightly lifted in conjunction with the rotation. With this, when the paper feed container (10) leaves the paper feed position, the pickup roller (30) is reliably separated from the top layer of paper (P), and the top layer of paper (P) is moved away from the pickup roller (30). ) and will not be left behind.
なお、給紙容器(■0)が給紙位置にあるとき、用紙(
P)の減少に応じてピックアップローラ(30)と共に
解除ピン(75)が下動する。その最下限は用紙(P)
を前記底板押上げ機構にて再び押上げを開始する時点で
ある。従って、前記カム部(12c)の傾斜面(y2)
の底部は解除ピン(75)の最下限位置よりも低く設定
されている。換言すれば、給紙状態にあるとき、解除ピ
ン(75)がカム部(12c)に当接しない様に構成す
る必要がある。Note that when the paper feed container (■0) is in the paper feed position, the paper (
P), the release pin (75) moves downward together with the pickup roller (30). The lowest limit is paper (P)
This is the point at which the bottom plate push-up mechanism starts pushing up again. Therefore, the inclined surface (y2) of the cam portion (12c)
The bottom of the release pin (75) is set lower than the lowest position of the release pin (75). In other words, it is necessary to configure the release pin (75) so that it does not come into contact with the cam part (12c) when the paper is being fed.
発明の舛求
以」二の説明で明らかな様に、本発明は、用紙を給紙装
置本体から複写機等の作像装置本体に送り出す用紙供給
部を、給紙装置本体から分割して作像装置本体に設けた
給紙ツノセットの装填口に11脱可能なアダプタとした
ため、前記従来の如く用紙供給部が給紙装置本体から突
出することがなく、梱包上汀fl+であるし、給紙装置
本体を作像装置本体に対して着脱する際の位置決めにそ
れ程精度が要求されることがない。As is clear from the explanation in Section 2 of ``Details of the Invention'', the present invention provides a structure in which a paper supply section for feeding paper from the main body of a paper feeding device to the main body of an image forming apparatus such as a copying machine is separated from the main body of the paper feeding device. Since the adapter is removable from the loading slot of the paper feed horn set provided on the imager body, the paper supply section does not protrude from the paper feeder body as in the conventional case, and the packaging is easy. Positioning when attaching and detaching the apparatus main body to and from the image forming apparatus main body does not require much precision.
図面は本発明に係る給紙装置の一実施例を示し、第1図
は給紙装置を複写機に接続した状態の斜視図、第2図は
給紙容器の給紙位置と用紙補給位置とを説明するための
平面図、第3図は給紙容器の要部斜視図、第4図は給紙
装置本体の要部斜視図、第5図は池の給紙カセットを装
着した状態の斜視図、第6図は他の給紙カセットを装着
した状態の側面図、第7図は給紙装置本体の内部構造を
示すだめの概略断面図、第8図は用紙の給紙状態の説明
図、第9図は用紙供給部アゲブタの斜視図、第1O図は
用紙供給部アダプタ及びその周囲の断面図、第11.a
図2第11b図は底板押上げ機構の背面図、第12図は
ピックアップローラ支持部の断面図、第13a図、第1
3b図、第13c図はピックアップローラの動作説明図
である。
(P)・・・用紙、(1)・・・複写機、(4)・・給
紙カセット装置眞「]、(10)・給紙容器、(20)
・・給紙装置本体、(40)・・・アダプタ。
第1図
第2凶
!
第3図
1B5図
第11b図
第11a図The drawings show an embodiment of the paper feeding device according to the present invention, and FIG. 1 is a perspective view of the paper feeding device connected to a copying machine, and FIG. 2 shows the paper feeding position and paper replenishment position of the paper feeding container. Figure 3 is a perspective view of the main parts of the paper feed container, Figure 4 is a perspective view of the main parts of the main body of the paper feeder, and Figure 5 is a perspective view of the paper feed cassette installed. Figure 6 is a side view with another paper feed cassette installed, Figure 7 is a schematic sectional view of the holder showing the internal structure of the paper feeder main body, and Figure 8 is an explanatory diagram of the paper feeding state. , FIG. 9 is a perspective view of the paper supply section adapter, FIG. 1O is a sectional view of the paper supply section adapter and its surroundings, and FIG. 11. a
Figure 2 11b is a rear view of the bottom plate push-up mechanism, Figure 12 is a sectional view of the pickup roller support section, Figure 13a,
3b and 13c are explanatory views of the operation of the pickup roller. (P) Paper, (1) Copy machine, (4) Paper cassette device, (10) Paper container, (20)
... Paper feeder main body, (40) ... adapter. Figure 1, 2nd evil! Figure 3 1B5 Figure 11b Figure 11a
Claims (1)
装置本体に設けた給紙カセットの装填口に用紙供給部を
位置させる様にした給紙装置において、 前記用紙供給部を給紙装置本体から分割して前記給紙カ
セットの装填口に着脱可能なアダプタとしたことを特徴
とする給紙装置。[Scope of Claims] 1. In a paper feeding device that is detachable from the main body of an image forming apparatus such as a copying machine, and in which a paper feeding section is positioned in a loading opening of a paper feeding cassette provided in the main body of the image forming apparatus. . A paper feeding device, characterized in that the paper feeding section is separated from a main body of the paper feeding device to form an adapter that can be attached to and detached from a loading slot of the paper feeding cassette.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP774886A JPS62167136A (en) | 1986-01-16 | 1986-01-16 | Paper supply device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP774886A JPS62167136A (en) | 1986-01-16 | 1986-01-16 | Paper supply device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62167136A true JPS62167136A (en) | 1987-07-23 |
Family
ID=11674318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP774886A Pending JPS62167136A (en) | 1986-01-16 | 1986-01-16 | Paper supply device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62167136A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02231325A (en) * | 1989-03-02 | 1990-09-13 | Konica Corp | Recording device using paper feed device unit |
US5054762A (en) * | 1988-09-28 | 1991-10-08 | Ricoh Company, Ltd. | Removable unit for an image forming apparatus adapted to receive sheet cassettes and guide paper sheets therefrom |
US5078382A (en) * | 1989-09-26 | 1992-01-07 | Mita Industrial Co., Ltd. | Paper feeder |
-
1986
- 1986-01-16 JP JP774886A patent/JPS62167136A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5054762A (en) * | 1988-09-28 | 1991-10-08 | Ricoh Company, Ltd. | Removable unit for an image forming apparatus adapted to receive sheet cassettes and guide paper sheets therefrom |
JPH02231325A (en) * | 1989-03-02 | 1990-09-13 | Konica Corp | Recording device using paper feed device unit |
US5078382A (en) * | 1989-09-26 | 1992-01-07 | Mita Industrial Co., Ltd. | Paper feeder |
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