JPS6237246Y2 - - Google Patents
Info
- Publication number
- JPS6237246Y2 JPS6237246Y2 JP1978177290U JP17729078U JPS6237246Y2 JP S6237246 Y2 JPS6237246 Y2 JP S6237246Y2 JP 1978177290 U JP1978177290 U JP 1978177290U JP 17729078 U JP17729078 U JP 17729078U JP S6237246 Y2 JPS6237246 Y2 JP S6237246Y2
- Authority
- JP
- Japan
- Prior art keywords
- toner
- shutter
- discharge
- cleaning device
- tube
- 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.)
- Expired
Links
- 238000004140 cleaning Methods 0.000 claims description 26
- 108091008695 photoreceptors Proteins 0.000 claims description 5
- 239000002699 waste material Substances 0.000 description 6
- 230000002265 prevention Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Description
【考案の詳細な説明】
−産業上の技術分野−
本考案は静電記録装置や電子写真複写機等のク
リーニング装置に関し、特に、トナー廃棄部の改
良に関する。[Detailed Description of the Invention] - Industrial Technical Field - The present invention relates to a cleaning device for an electrostatic recording device, an electrophotographic copying machine, etc., and particularly relates to an improvement of a toner disposal section.
−従来技術及び問題点−
一般に、ブレード・クリーニング型を含むクリ
ーニング装置においては、装置の運転に伴なつて
感光体から回収されたトナーが回収箱中へ堆積さ
れるので、定期的または不定期的に堆積トナーを
廃棄しなければならないが、この廃棄作業は非常
にやつかいである。クリーニング装置が大型化す
る欠点もあるため、最気では、クリーニング装置
内の前記回収箱中に排出コンベアを付設して自動
的に堆積トナーをクリーニング装置外へ排出する
試みがなされている。しかしながら、従来の排出
コンベア付クリーニング装置は排出コンベアの吐
出口に回収袋を単に別個に取付けた構造であるの
で、回収トナーをこぼさぬように回収袋を取外す
のに手間どる等の欠点がある。この欠点を解決す
るための技術として、米国特許No.4030824号、西
独公開No.2111759及び特開昭52−145043号が知ら
れている。前記３件の公知例の内米国特許No.
4030824号はクリーニング装置によりクリーニン
グされた廃トナーを廃トナー容器に収容する手段
が示されているが、複写装置本体を上部に引き上
げる操作（給紙不良時）を行う時クリーニング装
置と廃トナー容器が分離する。この時クリーニン
グ装置に残留する廃トナーが飛散し落下するのを
防止するため自動的に廃トナーの吐出口を止める
バルブプレートが設けられているが、前記バルブ
プレートで吐出口を止める迄は廃トナーの飛散を
防止することができない。又独公開No.2111759
号、においては、トナー補給装置と現像装置の関
係が示され現像装置とトナー補給装置を引離した
ときトナー補給口よりトナーの落下を防止するた
めの摺動可能のフランジとカバーよりなる落下防
止部材が設けられるが、この装置においても落下
防止部材の作動が完了する迄はトナーの飛散が発
生する。そして特開昭52−145043号は現像及びク
リーニングの何れにも使用できる装置であるが、
トナー搬送部の中間に取外し手段が設けられてい
る。この取外し手段にはトナーの落下を防止する
ため回動するシヤツターが開口部に設けられるの
で、一応トナーの大きな落下は防止できるが、切
離し動作に連動してシヤツターを作動させるよう
に構成されているから、小量のトナー落下は防止
できず、落下トナーが外部に飛散し、装置が汚れ
る。つまり、いずれの従来公知の装置もトナーの
飛散を完全に防止することができない。詳しくい
うと、従来においては、トナー搬送径路の切離し
時に、トナー排出口を自動的に閉じる工夫はなさ
れているが、この切離し部分においては、このよ
うな自動開閉材溝を設けたとしても、多少のトナ
ー漏れは避けられず、この漏れトナーが複写機の
機内を汚染するという欠点は避けられなかつた。- Prior Art and Problems - In general, in cleaning devices including blade cleaning types, toner collected from the photoreceptor is deposited in a collection box as the device is operated, so the toner is collected periodically or irregularly. The accumulated toner must be disposed of, but this disposal work is extremely difficult. Since the cleaning device has the drawback of increasing its size, attempts have recently been made to attach a discharge conveyor to the collection box in the cleaning device to automatically discharge the accumulated toner to the outside of the cleaning device. However, the conventional cleaning device with a discharge conveyor has a structure in which a collection bag is simply separately attached to the discharge port of the discharge conveyor, and therefore has drawbacks such as the time and effort it takes to remove the collection bag without spilling the collected toner. Techniques for solving this drawback are known in US Pat. Of the three known examples above, U.S. Patent No.
No. 4030824 discloses a means for storing waste toner cleaned by a cleaning device in a waste toner container, but when the operation of lifting the main body of the copying device upwards (in the event of paper feeding failure), the cleaning device and the waste toner container are To separate. At this time, in order to prevent the waste toner remaining in the cleaning device from scattering and falling, a valve plate is provided that automatically stops the waste toner discharge port. It is not possible to prevent the scattering of German publication No.2111759
In No. 1, the relationship between the toner replenishing device and the developing device is shown, and a fall prevention device consisting of a slidable flange and a cover is used to prevent toner from falling from the toner replenishing port when the developing device and toner replenishing device are separated. Although a member is provided, even in this device, toner scattering occurs until the operation of the fall prevention member is completed. JP-A-52-145043 is a device that can be used for both development and cleaning.
A removal means is provided in the middle of the toner transport section. This removal means is equipped with a shutter that rotates at the opening to prevent the toner from falling, so a large drop of toner can be prevented, but the shutter is configured to operate in conjunction with the separation operation. Therefore, it is impossible to prevent a small amount of toner from falling, and the falling toner scatters outside, contaminating the device. In other words, none of the conventionally known devices can completely prevent toner scattering. To be more specific, in the past, devices have been devised to automatically close the toner discharge port when the toner transport path is separated, but even if such an automatic opening/closing groove is provided at this separation part, it will be somewhat difficult to close the toner outlet. Toner leakage is unavoidable, and the disadvantage is that this leaked toner contaminates the inside of the copying machine.
−本考案の目的及び構成−
本考案は、上記の点に鑑みてなされたもので、
クリーニング装置によつて感光体からかき取れた
トナーをトナー搬送装置を用いてクリーニング装
置外に搬送し、トナー受け部に導く複写機であつ
て、前記搬送装置と前記トナー受け部が接離可能
に構成され、かつ、前記搬送装置を排出筒、搬送
手段及びシヤツタ部材で構成し、該シヤツタ部材
をばねで付勢することによつて、前記搬送装置と
前記トナー受け部の接離時に前記排出筒に設けた
吐出口を自動的に開閉するようにした複写機にお
いて、前記シヤツタ部材と前記排出筒に摺動可能
に取りつけるとともに、前記トナー受け部をシヤ
ツタ押し部材と該シヤツタ押し部材に対して着脱
可能なトナー容器で構成し、かつ、前記搬送装置
と前記トナー受部を接合したときに前記シヤツタ
押し部材が前記排出筒の吐出口近傍部分を覆うよ
う前記シヤツタ押し部材を構成したことにより達
成される。-Purpose and structure of the present invention- The present invention has been made in view of the above points.
A copying machine that uses a toner conveying device to convey toner scraped from a photoreceptor by a cleaning device to the outside of the cleaning device and guide it to a toner receiving section, wherein the conveying device and the toner receiving section can be brought into contact with and separated from each other. and the conveyance device is constituted by a discharge cylinder, a conveyance means, and a shutter member, and the shutter member is biased by a spring, so that the discharge cylinder is In a copying machine configured to automatically open and close a discharge port provided in a shutter member, the toner receiving portion is slidably attached to the shutter member and the discharge tube, and the toner receiving portion is attached to and detached from the shutter pushing member and the shutter pushing member. This is achieved by configuring the shutter pushing member to cover a portion of the discharge tube near the discharge port when the conveying device and the toner receiving portion are joined. Ru.
−実施例−
第１図において、矢印方向に回転される感光体
ドラム１の周面には本考案のクリーニング装置Ａ
が付設される。このクリーニング装置Ａは第１図
の紙面上方に向かつて摺動させることにより取外
ずすことができかつ前記感光体ドラム１の周面に
対向した表面を開放されたトナー回収箱２を備え
る。このトナー回収箱２の内部には、先端を感光
体ドラム１の周面に接触されたクリーニング・ブ
レード３及びこのクリーニング・ブレード３によ
り剥離されたトナーをトナー回収箱２中に案内す
るマイラー等の弾性案内板４が組込まれる。-Example- In Fig. 1, the cleaning device A of the present invention is attached to the circumferential surface of the photosensitive drum 1 which is rotated in the direction of the arrow.
is attached. This cleaning device A includes a toner collection box 2 which can be removed by sliding upward in the paper of FIG. 1 and whose surface facing the circumferential surface of the photosensitive drum 1 is open. Inside the toner collection box 2, there is a cleaning blade 3 whose tip is in contact with the circumferential surface of the photoreceptor drum 1, and a Mylar or the like that guides the toner peeled off by the cleaning blade 3 into the toner collection box 2. An elastic guide plate 4 is incorporated.
前記回収箱２の内底部には第２図に詳細を示し
たトナー搬送装置即ち排出コンベアが組込まれ
る。この排出コンベアは、前記回収箱２にねじ５
で固定された排出筒６と、この排出筒６中に回転
可能に収容された搬送手段即ちスクリユ・コンベ
ア７とからなる。前記スクリユ・コンベア７の先
端部は、排出筒６の端部にねじ８で固定されたリ
ング９に回転可能に支持させた中心軸１０に固定
される。また、Ｌ字型筒（以下筒という）１１中
に内挿される排出筒６の先端部にはトナーを筒１
１中に投入する吐出口１２が形成されている。筒
１１は後に説明するようにシヤツタ筒１４を押す
シヤツタ押し部材である。前記排出筒６の先端に
は、圧縮ばね１３によつて突出方向へ押されたシ
ヤツタ部材即ちシヤツタ筒１４が摺動可能に支持
される。このシヤツタ筒１４には前記ねじ８の頭
部を受入れる長孔１５が形成され、この長孔１５
とねじ８の係合関係によりシヤツタ筒１４の廻り
止めと抜止めが行われる。前記シヤツタ筒１４に
は前記吐出口１２に一致できる開口１６が形成さ
れ、したがつて排出筒６が筒１１中に完全に挿入
されたとき、筒１１により衝止されたシヤツタ筒
１４が排出筒６に対して摺動され、吐出口１２と
開口１６が一致されるように構成されている。排
出筒６が筒１１中に完全に挿入されたとき排出筒
６の吐出口１２の近傍部分は筒１１により第２図
に示すように覆われている。そして排出筒６を引
出したとき、ばね１３でシヤツタ筒１４が排出筒
６に対し第２図における右方向に摺動し吐出口１
２を閉じる。 A toner conveying device, ie, a discharge conveyor, shown in detail in FIG. 2, is incorporated into the inner bottom of the collection box 2. This discharge conveyor has screws 5 attached to the collection box 2.
It consists of a discharge tube 6 which is fixed to the discharge tube 6, and a conveying means, ie, a screw conveyor 7, which is rotatably housed in the discharge tube 6. The tip of the screw conveyor 7 is fixed to a central shaft 10 rotatably supported by a ring 9 fixed to the end of the discharge tube 6 with a screw 8. Further, toner is supplied to the tip of the discharge tube 6 inserted into the L-shaped tube (hereinafter referred to as tube) 11.
1 is formed with a discharge port 12 into which the liquid is introduced. The cylinder 11 is a shutter pushing member that pushes the shutter cylinder 14 as will be explained later. At the tip of the discharge tube 6, a shutter member, ie, a shutter tube 14, which is pushed in the projecting direction by a compression spring 13, is slidably supported. This shutter tube 14 is formed with a long hole 15 for receiving the head of the screw 8.
The engagement relationship between the screw 8 and the screw 8 prevents the shutter cylinder 14 from rotating and coming off. The shutter tube 14 is formed with an opening 16 that can coincide with the discharge port 12, so that when the discharge tube 6 is completely inserted into the tube 11, the shutter tube 14 blocked by the tube 11 is inserted into the discharge tube. 6 so that the discharge port 12 and the opening 16 are aligned. When the discharge tube 6 is completely inserted into the tube 11, the portion of the discharge tube 6 near the discharge port 12 is covered by the tube 11 as shown in FIG. When the discharge tube 6 is pulled out, the shutter tube 14 slides against the discharge tube 6 in the right direction in FIG.
Close 2.
また、トナー回収容器即ち回収袋１９は機体フ
レーム１７の側面には、筒１１の下部に位置され
た引掛ピン１８が設けられ、これらの引掛ピン１
８には可とう材料から作られた回収袋１９の引掛
穴２０が係合される。即ち、回収袋１９の引掛穴
２０は回収袋１９の上縁に熱溶着された剛性材２
１に形成されており、したがつて、回収袋１９の
重量は引掛ピン１８に荷重される。また、前記回
収袋１９の口部２０ａは、筒１１にはめられた
後、弾性リング２２によつて筒１１に固定される
ように設けられ順次トナーが回収される。本考案
は、以上のように構成されたから、通常状態にあ
つては感光体上に残留したトナーはクリーニング
装置Ａのクリーニング・ブレード３によりクリー
ニングされ、トナー回収箱２に落下する。そして
落下したトナーは排出コンベア７により順次排出
筒６内を搬送される。この場合、スプリング１３
に抗してシヤツタ部材１４が筒１１の側面１１ａ
で押圧されているため、排出筒６の開口１６とシ
ヤツタ部材１４の吐出口１２が一致しており、廃
トナーは筒１１内を落下する。落下したトナーは
第３図に示された回収袋１９に収納される。 Further, the toner collection container or collection bag 19 is provided with hook pins 18 located at the bottom of the cylinder 11 on the side surface of the body frame 17.
8 is engaged with a hook hole 20 of a collection bag 19 made of a flexible material. That is, the hook hole 20 of the collection bag 19 is formed by a rigid material 2 that is heat-welded to the upper edge of the collection bag 19.
1, and therefore the weight of the collection bag 19 is loaded onto the hook pin 18. The opening 20a of the collection bag 19 is fitted into the cylinder 11 and then fixed to the cylinder 11 by an elastic ring 22, so that the toner is sequentially collected. Since the present invention is constructed as described above, under normal conditions, the toner remaining on the photoreceptor is cleaned by the cleaning blade 3 of the cleaning device A and falls into the toner collection box 2. Then, the fallen toner is sequentially conveyed through the discharge tube 6 by the discharge conveyor 7. In this case, spring 13
The shutter member 14 is pushed against the side surface 11a of the cylinder 11.
As a result, the opening 16 of the discharge tube 6 and the discharge port 12 of the shutter member 14 are aligned, and the waste toner falls inside the tube 11. The fallen toner is stored in a collection bag 19 shown in FIG.
−考案の効果−
以上のように本考案はトナー回収部とクリーニ
ング装置を切離す操作によつてトナー吐出口を自
動的に閉じるようにしたトナーの落下、飛散防止
機構において、両者の接合時にトナー回収部を構
成するシヤツタ押し部材で、トナー吐出口の部分
を覆うようにしたので、トナーの落下、飛散防止
をより効果的に行うことができ、機内のトナー汚
染を充分に防止することができる。またシヤツタ
押し部材でシヤツタ部材を押し、トナー吐出口を
開口状態に保持するようにしたので、トナー吐出
口の開閉機構を簡単に設けることができる効果が
ある。-Effects of the invention- As described above, the present invention provides a toner drop and scatter prevention mechanism in which the toner discharge port is automatically closed by the operation of separating the toner collecting section and the cleaning device. Since the shutter push member that makes up the collection section covers the toner discharge port, it is possible to more effectively prevent toner from falling and scattering, and it is possible to sufficiently prevent toner contamination inside the machine. . Further, since the shutter member is pushed by the shutter pushing member to hold the toner discharge port in an open state, it is possible to easily provide an opening/closing mechanism for the toner discharge port.
第１図は本考案によるクリーニング装置の全体
断面図、第２図は同クリーニング装置要部の拡大
断面図、第３図は同クリーニング装置要部の分解
斜視図である。
Ａ……クリーニング装置、７……スクリユ・コ
ンベア（搬送手段）、１１……筒、１４……シヤ
ツタ筒（シヤツタ部材）、１９……回収袋（トナ
ー容器）。
FIG. 1 is an overall sectional view of the cleaning device according to the present invention, FIG. 2 is an enlarged sectional view of the main parts of the cleaning device, and FIG. 3 is an exploded perspective view of the main parts of the cleaning device. A... Cleaning device, 7... Screw conveyor (conveying means), 11... Cylinder, 14... Shutter tube (shutter member), 19... Collection bag (toner container).
Claims (1)
たトナーをトナー搬送装置を用いてクリーニング
装置外に搬送し、トナー受け部に導く複写機であ
つて、前記搬送装置と前記トナー受け部が接離可
能に構成され、かつ、前記搬送装置を排出筒、搬
送手段及びシヤツタ部材で構成し、該シヤツタ部
材をばねで付勢することによつて、前記搬送装置
と前記トナー受け部の接離時に前記排出筒に設け
た吐出口を自動的に開閉するようにした複写機に
おいて、前記シヤツタ部材を前記排出筒に摺動可
能に取りつけるとともに、前記トナー受け部をシ
ヤツタ押し部材と該シヤツタ押し部材に対して着
脱可能なトナー容器で構成し、かつ、前記搬送装
置と前記トナー受部を接合したときに前記シヤツ
タ押し部材が前記排出筒の吐出口近傍部分を覆う
よう前記シヤツタ押し部材を構成したことを特徴
とする複写機。 A copying machine that uses a toner conveying device to convey toner scraped from a photoreceptor by a cleaning device to the outside of the cleaning device and guide it to a toner receiving section, wherein the conveying device and the toner receiving section can be brought into contact with and separated from each other. and the conveyance device is constituted by a discharge cylinder, a conveyance means, and a shutter member, and the shutter member is biased by a spring, so that the discharge cylinder is In the copying machine, the shutter member is slidably attached to the discharge tube, and the toner receiving portion is attached to and detached from the shutter pushing member and the shutter pushing member. the toner container, and the shutter pushing member is configured to cover a portion of the discharge tube near the discharge port when the conveying device and the toner receiving portion are joined. copy machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978177290U JPS6237246Y2 (en) | 1978-12-27 | 1978-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978177290U JPS6237246Y2 (en) | 1978-12-27 | 1978-12-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5597764U JPS5597764U (en) | 1980-07-07 |
| JPS6237246Y2 true JPS6237246Y2 (en) | 1987-09-22 |
Family
ID=29186650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978177290U Expired JPS6237246Y2 (en) | 1978-12-27 | 1978-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6237246Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0125957Y2 (en) * | 1980-11-07 | 1989-08-03 | ||
| JPS5786875A (en) * | 1980-11-20 | 1982-05-31 | Ricoh Co Ltd | Developer recovery device for developing device |
| JPS57130079A (en) * | 1981-02-06 | 1982-08-12 | Matsushita Electric Ind Co Ltd | Cleaning device of copying machine |
| JPS60118874A (en) * | 1983-11-30 | 1985-06-26 | Mita Ind Co Ltd | Toner collecting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3784297A (en) * | 1970-03-11 | 1974-01-08 | Canon Kk | Photocopying machine |
| US4030824A (en) * | 1975-11-03 | 1977-06-21 | Xerox Corporation | Reproducing apparatus having an improved imaging surface cleaning system |
| JPS6026018U (en) * | 1983-07-29 | 1985-02-22 | 三菱重工業株式会社 | Inspection device with fiber scope |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52118714U (en) * | 1976-03-02 | 1977-09-08 |
-
1978
- 1978-12-27 JP JP1978177290U patent/JPS6237246Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3784297A (en) * | 1970-03-11 | 1974-01-08 | Canon Kk | Photocopying machine |
| US4030824A (en) * | 1975-11-03 | 1977-06-21 | Xerox Corporation | Reproducing apparatus having an improved imaging surface cleaning system |
| JPS6026018U (en) * | 1983-07-29 | 1985-02-22 | 三菱重工業株式会社 | Inspection device with fiber scope |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5597764U (en) | 1980-07-07 |
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