JPH05186121A - Sheet discharge offset mechanism - Google Patents
Sheet discharge offset mechanismInfo
- Publication number
- JPH05186121A JPH05186121A JP4002796A JP279692A JPH05186121A JP H05186121 A JPH05186121 A JP H05186121A JP 4002796 A JP4002796 A JP 4002796A JP 279692 A JP279692 A JP 279692A JP H05186121 A JPH05186121 A JP H05186121A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- shafts
- sheet discharge
- axes
- difference
- 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
- Paper Feeding For Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Pile Receivers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、プリンタ，複写機等に
使用され、処理済用紙を排出する排紙装置に適用される
排紙オフセット機構に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper discharge offset mechanism used in a printer, a copying machine or the like and applied to a paper discharge device for discharging processed paper.
【０００２】[0002]
【従来の技術】図４はこの種の従来の排紙装置の構成，
作用説明図で、図中、１は排出ローラ、２は従動ロー
ラ、３は排紙スタッカである。排出ローラ１は、図示し
ない駆動系により駆動されて矢印方向に回転し、該排出
ローラ１に圧接する従動ローラ２との間に用紙を噛み込
んで排紙スタッカ３内に排出する。2. Description of the Related Art FIG. 4 shows the structure of a conventional paper discharge device of this type,
In the operation explanatory view, 1 is a discharge roller, 2 is a driven roller, and 3 is a paper discharge stacker. The discharge roller 1 is driven by a drive system (not shown) to rotate in the direction of the arrow, and a sheet is caught between the discharge roller 1 and the driven roller 2 that is in pressure contact with the discharge roller 1 and discharged into the discharge stacker 3.
【０００３】排出ローラ１及び従動ローラ２は、図示し
ないソレノイドを用いた排紙オフセット機構により軸方
向にスライドするようになっている。ソレノイド，オン
の場合は、各ローラ１，２は第１の位置に位置決めされ
ており、排紙は（イ）の位置にスタックされる。排紙を
（ロ）の位置にスタックする際には、各ローラ１，２に
排紙が噛み込まれた状態でソレノイドをオフにする。こ
れにより、各ローラ１，２は軸方向に移動して第２の位
置に位置決めされ、排紙は（ロ）の位置にスタックされ
る。The discharge roller 1 and the driven roller 2 are designed to slide in the axial direction by a discharge offset mechanism using a solenoid (not shown). When the solenoid is on, the rollers 1 and 2 are positioned at the first position, and the discharged sheets are stacked at the position (a). When stacking the discharged sheets at the position (b), the solenoid is turned off while the discharged sheets are caught in the rollers 1 and 2. As a result, the rollers 1 and 2 move in the axial direction and are positioned at the second position, and the discharged sheets are stacked at the position (b).
【０００４】[0004]
【発明が解決しようとする課題】このように、従来の排
紙オフセット機構では、各ローラをソレノイドのオン，
オフにより軸方向の２つの位置に位置決めして排出を行
うものであり、排紙位置は２箇所だけであった。As described above, in the conventional paper discharge offset mechanism, each roller is turned on and the solenoid is turned on.
When it is turned off, it is positioned at two positions in the axial direction and discharged, and there are only two discharge positions.
【０００５】本発明は、３箇所以上の排紙位置をとるこ
とのできる構造の簡単な排紙オフセット機構を提供する
ことを目的としている。An object of the present invention is to provide a simple paper discharge offset mechanism having a structure capable of taking three or more paper discharge positions.
【０００６】[0006]
【課題を解決するための手段】上述の目的を達成するた
め、本発明では、駆動源に接続する駆動部材により駆動
される２つの排出ローラにより用紙を排出する排紙装置
において、前記排出ローラの軸を、前記２つの排出ロー
ラの間で２つに分割し、該２つの軸の間に、前記駆動部
材の駆動力を前記２つの軸に伝達し、該２つの軸の回転
負荷に差があるときに該２つの軸に回転差を生じさせる
差動歯車機構を設けるとともに、前記２つの軸の回転負
荷に差を持たせる回転負荷変動手段を設けて排紙オフセ
ット機構を構成している。To achieve the above object, in the present invention, in a paper discharge device for discharging a paper by two discharge rollers driven by a drive member connected to a drive source, The shaft is divided into two between the two discharge rollers, the driving force of the driving member is transmitted to the two shafts between the two shafts, and a difference in rotational load between the two shafts is generated. A discharge gear offset mechanism is provided by providing a differential gear mechanism that causes a difference in rotation between the two shafts at a certain time, and by providing a rotational load changing unit that causes a difference in the rotational load between the two shafts.
【０００７】[0007]
【作用】２つの軸は差動歯車機構を介し駆動されて回転
するが、該２つの軸の回転負荷に差のないときは、２つ
の軸は同速度で回転し、排出される用紙は第１の排紙位
置にスタックされる。また、ソレノイド等の回転負荷変
動手段により２つの軸の回転負荷に差を持たせたとき
は、差動歯車機構の作用により２つの軸に回転差が生じ
る。The two shafts are rotated by being driven through the differential gear mechanism. However, when there is no difference in the rotational load of the two shafts, the two shafts rotate at the same speed and the discharged paper is The sheet is stacked at the first sheet discharging position. Further, when a rotational load change means such as a solenoid is used to cause a difference in rotational load between the two shafts, a rotational difference occurs between the two shafts due to the action of the differential gear mechanism.
【０００８】これにより、用紙は放物線を描くように搬
送され、第１の排紙位置と異なる位置に排出される。ま
た、従来排紙位置は２箇所だけであったが、本発明で
は、回転負荷変動手段の作動時間を変えることによっ
て、排紙位置を３箇所以上にすることができる。As a result, the paper is conveyed so as to draw a parabola and is discharged to a position different from the first paper discharge position. Further, conventionally, there are only two discharge positions, but in the present invention, the discharge positions can be set to three or more positions by changing the operating time of the rotational load varying means.
【０００９】[0009]
【実施例】以下、図１乃至図４に関連して本発明の実施
例を説明する。Embodiments of the present invention will be described below with reference to FIGS.
【００１０】図１は本例の排紙装置の構造概要を示す斜
視図で、図中、１１，１１は排出ローラ、１２，１２は
従動ローラ、１３は駆動ベルト（駆動部材）、１４は排
紙オフセット機構である。排出ローラ１１，１１の軸
は、軸１５と軸１６とに分割され、一方の排出ローラ１
１は軸１５に、他方の排出ローラ１１は軸１６に、それ
ぞれ固定されている。軸１５及び軸１６は、支持部材１
７に取り付けられたブラケット１８及びブラケット１９
に支持されている。FIG. 1 is a perspective view showing the outline of the structure of the paper discharge device of the present embodiment. In the drawing, 11, 11 are discharge rollers, 12, 12 are driven rollers, 13 is a drive belt (driving member), and 14 is a discharge roller. It is a paper offset mechanism. The shafts of the discharge rollers 11, 11 are divided into a shaft 15 and a shaft 16, and one of the discharge rollers 1 is
1 is fixed to the shaft 15, and the other discharge roller 11 is fixed to the shaft 16. The shaft 15 and the shaft 16 are the support member 1
Bracket 18 and bracket 19 attached to 7
Supported by.
【００１１】従動ローラ１２，１２は、支持部材２０に
取り付けたブラケット２１，２２に支持され、排出ロー
ラ１１，１１に接触して回転するようになっている。The driven rollers 12 and 12 are supported by brackets 21 and 22 attached to the support member 20, and are configured to come into contact with the discharge rollers 11 and 11 and rotate.
【００１２】排紙オフセット機構１４は、上記のように
排出ローラの軸を２つの軸１５，１６に分割するととも
に、該軸１５，１６の間に差動歯車機構２３を設け、さ
らにソレノイド（回転負荷変動手段）２４を設けて構成
されている。The paper discharge offset mechanism 14 divides the shaft of the discharge roller into the two shafts 15 and 16 as described above, the differential gear mechanism 23 is provided between the shafts 15 and 16, and the solenoid (rotation) is provided. Load changing means) 24 is provided.
【００１３】差動歯車機構２３は、図２に詳細を示すよ
うに、軸１５、軸１６に固定された第１の入力ギア２
５，第２の入力ギア２６と、これらの入力ギア２５，２
６と噛合して互いに対向する遊星ギア２７，２８とを備
えている。遊星ギア２７，２８の軸２７ａ，２８ａは、
外輪２９に軸受３０，３１を介し支持されている。外輪
２９は駆動ベルト１３により駆動され、これにより、遊
星ギア２７，２８が公転する。The differential gear mechanism 23, as shown in detail in FIG. 2, has a first input gear 2 fixed to the shafts 15 and 16.
5, second input gear 26 and these input gears 25, 2
6 and planetary gears 27 and 28 that mesh with each other and face each other. The shafts 27a and 28a of the planetary gears 27 and 28 are
The outer ring 29 is supported by bearings 30 and 31. The outer ring 29 is driven by the drive belt 13, and the planetary gears 27 and 28 revolve.
【００１４】ソレノイド２４は、軸１５の回転負荷を増
大させる（軸１５，１６の回転負荷に差を持たせる）た
めのもので、本体部は固定され、プランジャ３２はブラ
ケット１８に連結されている。The solenoid 24 is for increasing the rotational load of the shaft 15 (making the rotational loads of the shafts 15 and 16 different), the main body is fixed, and the plunger 32 is connected to the bracket 18. ..
【００１５】次に、排紙オフセット機構１４の作用につ
いて説明する。Next, the operation of the paper discharge offset mechanism 14 will be described.
【００１６】ソレノイド２４を作動させないときは、各
軸１５，１６の回転負荷は同じで、排出ローラ１１，従
動ローラ１２により排出される用紙１００は真っすぐに
排出されて、排紙スタッカ３内の図３の（ハ）の位置に
スタックされる。When the solenoid 24 is not operated, the rotational loads of the shafts 15 and 16 are the same, and the paper 100 discharged by the discharge roller 11 and the driven roller 12 is discharged straight, and the sheet inside the stacker 3 is discharged. Stacked at position 3 (c).
【００１７】また、排紙をオフセットさせる際には、ソ
レノイド２４を所定時間作動させる。これにより、プラ
ンジャ３２が下降し、ブラケット１８を押圧して排出ロ
ーラ１１の従動ローラ１２に対する圧接力を増大させ
る。従って、軸１５の回転負荷は軸１６の回転負荷より
大きくなる。その結果、差動歯車機構２３の作用により
（遊星ギア２７，２８の自転により）軸１５と軸１６の
間に回転差が生じ、用紙は放物線を描くように搬送さ
れ、排紙スタッカ３内にオフセットして排紙される。When offsetting the discharged sheet, the solenoid 24 is operated for a predetermined time. As a result, the plunger 32 descends and presses the bracket 18 to increase the pressure contact force of the discharge roller 11 with the driven roller 12. Therefore, the rotational load of the shaft 15 is larger than that of the shaft 16. As a result, due to the action of the differential gear mechanism 23 (due to the rotation of the planetary gears 27 and 28), a rotation difference occurs between the shaft 15 and the shaft 16, the paper is conveyed in a parabolic shape, and is fed into the paper discharge stacker 3. The paper is offset and ejected.
【００１８】この排出時に、ソレノイド２４の作動時間
（通電時間）を長くするほどオフセット量が多くなる。
すなわち、ソレノイド作動時間を変えることによって、
オフセット量を変えることができる。図３では、排紙位
置（ニ），（ホ）にオフセットさせて排紙した場合を示
している。これにより、排紙位置は（ハ），（ニ），
（ホ）の３箇所になる。At the time of discharging, the offset amount increases as the operating time (energization time) of the solenoid 24 is lengthened.
That is, by changing the solenoid operating time,
The offset amount can be changed. FIG. 3 shows a case where the sheet is discharged by offsetting it to the sheet discharge positions (d) and (e). As a result, the paper ejection position is (C), (D),
(E) There are 3 places.
【００１９】[0019]
【発明の効果】以上述べたように、本発明によれば、次
の各種の優れた効果を得ることができる。 （１）差動歯車機構を用いることにより、各ローラをス
ライドさせる従来方式により構造及び操作が簡素化され
る。 （２）ソレノイド等の回転負荷変動手段の作動時間を変
えることにより排紙位置を何箇所にも設定することがで
きる。As described above, according to the present invention, the following various excellent effects can be obtained. (1) By using the differential gear mechanism, the structure and operation are simplified by the conventional method of sliding each roller. (2) The discharge position can be set at any number of positions by changing the operating time of the rotational load varying means such as the solenoid.
【図１】本発明の実施例の排紙装置の構造概要を示す斜
視図である。FIG. 1 is a perspective view showing a structural outline of a paper discharge device according to an embodiment of the present invention.
【図２】本発明の実施例の差動歯車機構の構造詳細図で
ある。FIG. 2 is a detailed structural diagram of a differential gear mechanism according to an embodiment of the present invention.
【図３】本発明の実施例の排紙オフセット機構の作用説
明図である。FIG. 3 is an operation explanatory view of the paper discharge offset mechanism of the embodiment of the present invention.
【図４】従来の排紙装置の構成，作用を示す斜視図であ
る。FIG. 4 is a perspective view showing the configuration and operation of a conventional paper discharge device.
３ 排紙スタッカ １１ 排出ローラ １２ 従動ローラ １３ 駆動ベルト（駆動部材） １４ 排紙オフセット機構 １５，１６ 軸 ２３ 差動歯車機構 ２４ ソレノイド（回転負荷変動手段） 3 Paper Ejection Stacker 11 Ejection Roller 12 Driven Roller 13 Drive Belt (Drive Member) 14 Ejection Offset Mechanism 15, 16 Shaft 23 Differential Gear Mechanism 24 Solenoid (Rotation Load Fluctuation Means)
Claims (1)
り駆動される２つの排出ローラ（１１，１１）により用
紙を排出する排紙装置において、 前記排出ローラ（１１，１１）の軸を該排出ローラ（１
１，１１）の間で２つの軸（１５，１６）に分割し、前
記軸（１５，１６）の間に、前記駆動部材（１３）の駆
動力を前記２つの軸（１５，１６）に伝達し、該軸（１
５，１６）の回転負荷に差があるときに該軸（１５，１
６）に回転差を生じさせる差動歯車機構（２３）を設け
るとともに、 前記軸（１５，１６）の回転負荷に差を持たせるように
作動する回転負荷変動手段（２４）を設けて成ることを
特徴とする排紙オフセット機構。1. A paper discharge device for discharging a sheet by two discharge rollers (11, 11) driven by a drive member (13) connected to a drive source, wherein a shaft of the discharge roller (11, 11) is Discharge roller (1
1, 11) are divided into two shafts (15, 16), and the driving force of the driving member (13) is applied to the two shafts (15, 16) between the shafts (15, 16). The shaft (1
When there is a difference in the rotational loads of the shafts (15, 16), the shafts (15, 1)
6) is provided with a differential gear mechanism (23) that causes a rotation difference, and is also provided with a rotation load fluctuation means (24) that operates so as to give a difference in the rotation load of the shafts (15, 16). Paper discharge offset mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4002796A JPH05186121A (en) | 1992-01-10 | 1992-01-10 | Sheet discharge offset mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4002796A JPH05186121A (en) | 1992-01-10 | 1992-01-10 | Sheet discharge offset mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05186121A true JPH05186121A (en) | 1993-07-27 |
Family
ID=11539337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4002796A Pending JPH05186121A (en) | 1992-01-10 | 1992-01-10 | Sheet discharge offset mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05186121A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6059287A (en) * | 1996-02-24 | 2000-05-09 | Samsung Electronics Co., Ltd. | Paper discharge apparatus of printer |
| US7046955B2 (en) | 2003-02-04 | 2006-05-16 | Sharp Kabushiki Kaisha | Image forming apparatus |
| US7108261B2 (en) | 2003-02-04 | 2006-09-19 | Sharp Kabushiki Kaisha | Sheet delivery mechanism |
| US7159862B2 (en) | 2003-01-14 | 2007-01-09 | Sharp Kabushiki Kaisha | Sheet delivery mechanism for image forming apparatus |
| CN1325352C (en) * | 2003-04-30 | 2007-07-11 | 佳能株式会社 | Sheet treating apparatus and image forming apparatus |
| US8403320B2 (en) * | 2011-07-18 | 2013-03-26 | Hon Hai Precision Industry Co., Ltd. | Sheet feeding mechanism with a differential mechanism |
| US8870180B2 (en) * | 2013-02-28 | 2014-10-28 | Hewlett-Packard Development Company, L.P. | Differential to reduce skew |
-
1992
- 1992-01-10 JP JP4002796A patent/JPH05186121A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6059287A (en) * | 1996-02-24 | 2000-05-09 | Samsung Electronics Co., Ltd. | Paper discharge apparatus of printer |
| US7159862B2 (en) | 2003-01-14 | 2007-01-09 | Sharp Kabushiki Kaisha | Sheet delivery mechanism for image forming apparatus |
| US7046955B2 (en) | 2003-02-04 | 2006-05-16 | Sharp Kabushiki Kaisha | Image forming apparatus |
| US7108261B2 (en) | 2003-02-04 | 2006-09-19 | Sharp Kabushiki Kaisha | Sheet delivery mechanism |
| CN1325352C (en) * | 2003-04-30 | 2007-07-11 | 佳能株式会社 | Sheet treating apparatus and image forming apparatus |
| US8403320B2 (en) * | 2011-07-18 | 2013-03-26 | Hon Hai Precision Industry Co., Ltd. | Sheet feeding mechanism with a differential mechanism |
| US8870180B2 (en) * | 2013-02-28 | 2014-10-28 | Hewlett-Packard Development Company, L.P. | Differential to reduce skew |
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|---|---|---|---|
| A02 | Decision of refusal |
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