JPS6223080A - Cleaning device for electronic copying machine - Google Patents

Abstract

PURPOSE:To satisfactorily maintain a cleaning effect, and also to prevent the inside of a copying machine from being contaminated, by providing a projection which interferes with a carrying means, on a part of a seal member, and giving a vibration to the seal member by a carrying operation of a carrying means, so that a toner is not accumulated on the seal member. CONSTITUTION:A seal member 5 for preventing a toner scraped down by a blade from the surface of a photosensitive body 2, from leading out to the outside of a housing is supported by a bracket 7. On the bracket 7, a roughly trapezoidal projection 7a is provided projectingly toward a carrying means 8 such as an auger, etc., and in case of a carrying operation by a rotation of the carrying means 8, the projection 7a is pushed against the outside peripheral part 8 of a fin 8b which has been provided spirally on a shaft part 8a, therefore, the bracket 7 turns in the direction as indicated with an arrow centering around a pin 6. Accordingly, the seal member 5 which has been attached to the bracket 7 is vibrated, therefore, a toner is prevented from being accumulated on the seal member 5, and also it does not occur that a gap is formed between the seal member 5 and the photosensitive body 2 due to weight of the toner.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は感光体の表面に残留する未転写トナーを清掃
する電子複写機のクリーニング装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a cleaning device for an electronic copying machine that cleans untransferred toner remaining on the surface of a photoreceptor.

従来の技術 従来電子複写機のクリーニング装置としては、例えば第
５図に示すものが公知である。上記クリーニング装置は
、ハウジングαの開口部に感光体すと接して、感光体す
の表面に残留する未転写トナーを掻き落すブレードＣを
有している。2. Description of the Related Art As a conventional cleaning device for an electronic copying machine, the one shown in FIG. 5, for example, is known. The cleaning device has a blade C that comes into contact with the photoreceptor at the opening of the housing α and scrapes off untransferred toner remaining on the surface of the photoreceptor.

またブレードＣの下刃には、感光体すの表面より掻き落
されたトナーがノーウジングαの開口よシハウジングα
外へ漏出するのを防止すると同時に、トナーをノーウジ
ングα内万へ案内するフィルム状のシール部材ｄが設け
られている。上記シール部材ｄはトナーの滑落をよくす
るため予め傾斜されて設置されているが、高温高湿時の
ようにトナーの流動性が悪い場合、トナーがシール部材
ｄ上に堆積することがある。In addition, the toner scraped off from the surface of the photoreceptor is placed on the lower edge of the blade C through the opening of the nousing α and the housing α.
A film-like sealing member d is provided to prevent toner from leaking out and at the same time guide the toner to the inside of the nousing α. The seal member d is installed at an angle in advance to facilitate the toner sliding down, but when the fluidity of the toner is poor, such as during high temperature and high humidity, toner may accumulate on the seal member d.

シール部材ｄ上に堆積したトナーは複写枚数が多くなる
に従い高さを増してブレードＣに達し、ブレードＣの清
掃機能を低下させたり、トナーの重みでシール部材ｄの
先端が感光体す表面よシ離間してシール効果が低下し、
複写機内がトナーにより汚損されるなどの不具合が生じ
る。As the number of copies increases, the toner accumulated on the seal member d increases in height and reaches the blade C, reducing the cleaning function of the blade C and causing the tip of the seal member d to move closer to the surface of the photoreceptor due to the weight of the toner. Separation occurs and the sealing effect decreases.
Problems such as the inside of the copying machine becoming stained with toner occur.

上記不具合を改善するものとしてシール部材の一部をク
シ形にして、シール材の振動によりトナーの滑落を良好
にしたクリーニング装置も提案されている。In order to improve the above-mentioned problem, a cleaning device has also been proposed in which a part of the sealing member is shaped like a comb so that the toner can easily slide off due to the vibration of the sealing member.

発明が解決しようとする問題点 しかしシール部材の一部をクシ形にしたものでは、シー
ル部材自体が振動するため、振動の際トナーが噴煙とな
って飛散し、複写機内部の汚損防止効果が余シないと共
に、シール部材の加工性が悪いためコスト高となるなど
の不具合があった。Problems to be Solved by the Invention However, when a part of the sealing member is shaped like a comb, the sealing member itself vibrates, and when it vibrates, the toner scatters in the form of smoke, which reduces the effect of preventing stains inside the copying machine. There were problems such as not only was there no surplus, but also the processability of the sealing member was poor, resulting in high costs.

この発明は上記不具合を改善する目的でなされたもので
ある。This invention was made for the purpose of improving the above-mentioned problems.

問題点を解決するための手段及び作用 感光体表面に残留する未転写トナーをブレードによ勺掻
き落してこれをシール部材によりハウジングの内方へ回
収すると共に、回収したトナーを搬送手段によりハウジ
ング外へ搬出するものにおいて、上記シール部材の一部
に搬送手段と干渉する突起を設けて、搬送手段の搬送動
作によりシール部材に振動を与え、シール部材上にトナ
ーが堆積するのを防止した電子複写機のクリーニング装
置。Means and Action for Solving Problems Untransferred toner remaining on the surface of the photoreceptor is scraped off with a blade and collected into the housing by a sealing member, and the collected toner is transported outside the housing by a conveying means. An electronic copying device that is transported to an electronic copying machine, in which a part of the sealing member is provided with a protrusion that interferes with the conveying means, and vibration is applied to the sealing member by the conveying operation of the conveying means, thereby preventing toner from accumulating on the sealing member. Machine cleaning equipment.

実施例 この発明の一実施例を図面を参照して詳述する。図にお
いて１はクリーニング装置本体で、図示しない電子複写
機内に設けられた感光体２側が開口するハウジング３を
有している。Embodiment An embodiment of the present invention will be described in detail with reference to the drawings. In the figure, reference numeral 1 denotes a main body of the cleaning device, which has a housing 3 that is open on the side of a photoreceptor 2 provided in an electronic copying machine (not shown).

上記ハウジング３の開口部３αには、感光体２の表面に
接して、表面に残留する未転写トナーを掻き落すブレー
ド４が設けられていると共に１ブレード４の下方には先
端部が感光体２の表面に接して、プレート４により掻き
落されたトナーがハウジング３の下側の開口より漏出す
るのを防止すると共に、掻き落されたトナーをハウジン
グ３の内方へ滑落させるシール部材５が設けられている
。上記シニル部材５はフィルム状をなしていて、自己の
弾性と図示しない付勢手段によル先端部が感光体２の表
面に圧接されていると共に、シール部材５０基端側は、
ピン６により回動自在に支承されたブラケット７に固着
されている。A blade 4 is provided in the opening 3α of the housing 3 in contact with the surface of the photoreceptor 2 to scrape off untransferred toner remaining on the surface. A sealing member 5 is provided in contact with the surface of the housing 3 to prevent the toner scraped off by the plate 4 from leaking out from the lower opening of the housing 3 and to allow the scraped toner to slide down inside the housing 3. It is being The seal member 5 has a film shape, and its tip end is pressed against the surface of the photoreceptor 2 by its own elasticity and a biasing means (not shown), and the proximal end of the seal member 50 is
It is fixed to a bracket 7 which is rotatably supported by a pin 6.

一万上記ハウジング３の内底部には、ノーウジフグ３内
に回収されたトナーを、ノ曳つジング３外へ搬出するオ
ーガなどの搬出手段８が設置されている。上記搬出手段
ｇは図示しない駆動系により一定方向へ回転される軸部
８αにフィン８ｂを螺旋状に設けた構成で、軸部ｇａの
回転とともにフィン８ｂによ）ハウジング３内のトナー
をハウジング３外へ搬出するようになっていると共に、
上記シール部材５を支持するブラケット７から搬送手段
８へ向けてほぼ台形の突起７ｃＬが突設されている。こ
の突起７αの先端はフィンεｂの外周部よシさらに軸部
８α側へ突設されていて、軸部８αの回転とともにフィ
ン８ｂＫよル第３図Ｈ）及び（ロ）Ｋ示すように下方へ
押され、またフィン８ｂが通過すると第４図イ）及び（
ロ）に示すように元へ戻るようになっている。これによ
ってブラケット７かピン６を中心に回動して、これに取
付けられたシール部材５に振動が与えられるようＫなっ
ている。A conveying means 8 such as an auger for conveying the toner collected in the nozzle blower 3 to the outside of the towing ring 3 is installed at the inner bottom of the housing 3. The carrying out means g has a structure in which fins 8b are spirally provided on a shaft part 8α which is rotated in a fixed direction by a drive system (not shown). Along with being transported outside,
A substantially trapezoidal projection 7cL projects from the bracket 7 that supports the seal member 5 toward the conveyance means 8. The tip of this protrusion 7α protrudes further from the outer circumference of the fin εb toward the shaft portion 8α side, and as the shaft portion 8α rotates, the fin 8bK moves downward as shown in FIG. 3H) and (B)K. When the fin 8b is pushed and the fin 8b passes, the
As shown in (b), it returns to its original state. This allows the bracket 7 to rotate around the pin 6, thereby imparting vibration to the seal member 5 attached thereto.

なお、フィン８ｂに突起７αが接してブラケット７が反
時計まわり方向へ回動された場合でも、シール部材５の
先端が感光体２の表面よシ離間しないよう予め感光体２
とシール部材５のニップ量を設定しておくものとする。Note that even if the bracket 7 is rotated counterclockwise with the protrusion 7α in contact with the fin 8b, the tip of the sealing member 5 should not be separated from the surface of the photoreceptor 2 in advance.
The nip amount of the seal member 5 shall be set as follows.

発明の効果 この発明は以上詳述したように、ノ）ウジフグ３内よ、
９）ナーを搬出する搬出手段８によりシール部材５に振
動を与えるようにしたことから、プレート４により感光
体２の表面から掻き落された未転写トナーがシール部材
５上に堆積することがない、これによって長期間に亘っ
て良好なりリーニング効果が維持できると共に、シール
部材５の一部をクシ形に加工してシール部材５自体を振
動させる必要がない友め、シール部材５が振動する際、
トナーが飛散して複写機内部を汚損したり、加工費用が
嵩んでコスト高となる不具合を解決することもできる。Effects of the Invention As detailed above, this invention is as follows:
9) Since the sealing member 5 is vibrated by the conveying means 8 for conveying the toner, untransferred toner scraped off from the surface of the photoreceptor 2 by the plate 4 does not accumulate on the sealing member 5. As a result, a good leaning effect can be maintained for a long period of time, and there is no need to process a part of the seal member 5 into a comb shape to vibrate the seal member 5 itself. ,
It is also possible to solve problems such as toner scattering and staining the inside of the copying machine, and high processing costs.

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの発明の一実施例を示し、第１図は断面図、第
２図は第１図ｆｆ　−Ｉｔ線に沿う矢視口１第３図ケン
、（ロ）及び第４図（イＪ、（ロ）は作用説明図、第５
図は従来の説明図である。 ２は感光体、３はハウジング、４はブレード、５はシー
ル部材、７αは突起、８は搬出手段。The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional view, and FIG. 2 is a cross-sectional view of FIG. , (b) is an action explanatory diagram, 5th
The figure is a conventional explanatory diagram. 2 is a photoreceptor, 3 is a housing, 4 is a blade, 5 is a sealing member, 7α is a protrusion, and 8 is a delivery means.

Claims (1)

【特許請求の範囲】[Claims] 感光体２の表面に残留する未転写トナーをプレート４に
より掻き落し、かつこれをシール部材５によりハウジン
グ３内に回収すると共に、回収したトナーを搬出手段に
よりハウジング３外へ搬出するものにおいて、上記シー
ル部材５の一部に搬送手段７と干渉する突起を設けて、
搬出手段８によりシール部材５に振動を与えるようにし
てなる電子複写機のクリーニング装置。In the device in which untransferred toner remaining on the surface of the photoconductor 2 is scraped off by the plate 4, and collected into the housing 3 by the sealing member 5, and the collected toner is transported out of the housing 3 by the transporting means, the above-mentioned A part of the sealing member 5 is provided with a protrusion that interferes with the conveyance means 7,
A cleaning device for an electronic copying machine in which vibration is applied to a seal member 5 by a carrying-out means 8.