JPS58163971A - Form peeling device of electrophotographic system copying machine or the like - Google Patents
Form peeling device of electrophotographic system copying machine or the likeInfo
- Publication number
- JPS58163971A JPS58163971A JP4636482A JP4636482A JPS58163971A JP S58163971 A JPS58163971 A JP S58163971A JP 4636482 A JP4636482 A JP 4636482A JP 4636482 A JP4636482 A JP 4636482A JP S58163971 A JPS58163971 A JP S58163971A
- Authority
- JP
- Japan
- Prior art keywords
- pawl
- peeling
- paper
- holding plate
- peeling claw
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/65—Apparatus which relate to the handling of copy material
- G03G15/6532—Removing a copy sheet form a xerographic drum, band or plate
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、電子写真プロセスを利用した機器、例えば電
子写真式複写機の用紙剥離装置における用紙剥離爪保持
技術に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper peeling claw holding technique in a paper peeling device of an apparatus using an electrophotographic process, such as an electrophotographic copying machine.
電子写真式複写機では、用紙に対する感光体上のイメー
ジ転写は、感光体表面から用紙を剥離することによって
完了する。In an electrophotographic copying machine, image transfer on a photoreceptor to paper is completed by peeling the paper from the surface of the photoreceptor.
この用紙剥離装置として、用紙の両面に係合させて剥離
を行う分離ベルト方式、あるいはグリッパ一方式等があ
るが、それに対し、全面複写を可能とする剥離爪方式が
提案され、実用化されている。There are two types of paper peeling devices: a separation belt type that engages both sides of the paper and peels it off, and a single gripper type, but a peeling claw type that enables full-page copying has been proposed and put into practical use. There is.
前記剥離爪は、通常、金属、または樹脂製のものが用い
られており、感光体に対する適正圧を確保すべく、また
用紙を効果的に剥離すべく、爪先端を鋭利に形成してい
る。この剥離爪を感光体に対して係合させるには、コイ
ルスプリングの弾発力を利用し、あるいは自重を以て圧
接させているが、そのための機構は比較的大きなスペー
スを要し、部品数も多い。The peeling claw is usually made of metal or resin, and has a sharp tip to ensure proper pressure against the photoreceptor and to effectively peel the paper. In order to engage this peeling claw with the photoreceptor, the elastic force of a coil spring is used or it is pressed against the photoreceptor using its own weight, but the mechanism for this requires a relatively large space and has a large number of parts. .
しかるに、同じく剥離爪を用いるにしても、弾性シート
製の剥離爪０１を保持板０２に保持せしめ、この剥離爪
０１を感光体に対して当接させる方式（第１図参照）で
は、機構が比較的簡単で、スペースを要さず、製作費も
廉価である。However, even if a peeling claw is used, the mechanism is difficult to maintain in the method in which the peeling claw 01 made of an elastic sheet is held on a holding plate 02 and this peeling claw 01 is brought into contact with the photoreceptor (see Fig. 1). It is relatively simple, does not require space, and is inexpensive to produce.
ところが、前記弾性シートは、感光体に密着している用
紙を剥離させるために、可及的に薄いものを使用する必
要があり、したがって、感光体に対する密着力の強い用
紙を剥離する際に、剥離爪が変形し易く、剥離ミス、あ
るいは剥離爪の変形による感光体の損傷等のトラブルが
生じていた。However, the elastic sheet needs to be as thin as possible in order to peel off the paper that is in close contact with the photoreceptor. The peeling claw is easily deformed, causing problems such as peeling errors or damage to the photoreceptor due to the deformation of the peeling claw.
本発明は、弾性シート製剥離爪における前記問題を、保
持板に簡単な工夫を加えることによって、効果的に解消
したものである。The present invention effectively solves the above-mentioned problems with elastic sheet peeling claws by adding a simple modification to the retaining plate.
以下、本発明の一実施例を、第２図、および第、３図に
則して説明する。An embodiment of the present invention will be described below with reference to FIGS. 2, 3, and 3.
電子写真式複写機における用紙剥離爪装置１は、略ぼ感
光体ドラム１０の長さと対応する保持板２と、同保持板
２に固定された薄肉の弾性シート３より構成されている
。A paper peeling claw device 1 in an electrophotographic copying machine is composed of a holding plate 2 whose length corresponds approximately to the length of a photosensitive drum 10, and a thin elastic sheet 3 fixed to the holding plate 2.
この弾性シート３は、その長尺方向に亘って、所定間隔
で複数の剥離爪３ａが突出形成されている。また、保持
板２にも、剥離爪３ａに対応する補強突出片２ａが形成
され、剥離爪３ａの尖端が若干頭を出す様な組合せ関係
になされている。This elastic sheet 3 has a plurality of peeling claws 3a protruding from it at predetermined intervals over its longitudinal direction. Further, a reinforcing protruding piece 2a corresponding to the peeling claw 3a is also formed on the holding plate 2, and the combination is such that the tip of the peeling claw 3a slightly protrudes.
しかして、用紙剥離爪装置１は、第３図に示す様な位置
関係で、感光体ドラム１０の円筒面に沿って配設され、
剥離爪３ａの尖端部が感光体ドラム１０に接触せられて
いる。Thus, the paper peeling claw device 1 is disposed along the cylindrical surface of the photosensitive drum 10 in a positional relationship as shown in FIG.
The tip of the peeling claw 3a is brought into contact with the photosensitive drum 10.
次に、本実施例の作用について説明する。Next, the operation of this embodiment will be explained.
転写部に送給されて来た用紙Ｐは、転写器１１の作用で
帯電され、感光体ドラム１０に密着して、順次イメージ
転写が行われる。感光体ドラム１０の回転に伴って、用
紙Ｐの先端が剥離爪３ａ部に到るや、用紙Ｐは剥離爪３
ａの下面に沿う様に剥離され、そのま−弾性シート３に
誘導され、用紙搬送装置１２によって次工程へ送給され
る。The paper P fed to the transfer section is charged by the action of the transfer device 11 and brought into close contact with the photoreceptor drum 10, where images are sequentially transferred. As the photosensitive drum 10 rotates, as soon as the leading edge of the paper P reaches the peeling claw 3a, the paper P is removed from the peeling claw 3.
The sheet is peeled off along the lower surface of the sheet a, guided as it is to the elastic sheet 3, and fed to the next process by the sheet conveying device 12.
しかして、用紙Ｐが剥離爪３ａによって、順次剥離され
る際、用紙Ｐと感光体ドラム１０との密着力が強い場合
には、剥離爪３ａに大きな押し」−げ力が作用するが、
剥離爪・３ａは補強突出片２ａによってバックアップさ
れているので、変形、破損を被ることはない。Therefore, when the paper P is sequentially peeled off by the peeling claw 3a, if the adhesion between the paper P and the photosensitive drum 10 is strong, a large pushing force acts on the peeling claw 3a.
Since the peeling claw 3a is backed up by the reinforcing protruding piece 2a, it will not be deformed or damaged.
なお、弾性シートの材料としては、たとえば金属では、
ステンレス鋼の薄板、樹脂では、ポリエチレン等が用い
られている。In addition, examples of materials for the elastic sheet include metals such as
Polyethylene and the like are used for stainless steel thin plates and resins.
以上、実施例の説明から明らかな様に、本発明では、用
紙剥離爪保持板に突出部片分設けて用紙剥離爪をサポー
トせしめているので、同剥離爪の破損を効果的に防止し
得る。 ）As is clear from the description of the embodiments above, in the present invention, the paper peeling claw holding plate is provided with a protruding piece to support the paper peeling claw, so that damage to the paper peeling claw can be effectively prevented. . )
第１図は公知に係る用紙剥離装置の概略説明図、３−
第２図は本発明の一実施例に係る用紙剥離装置の概略説
明図、第３図は電子写真式複写機内における同用紙剥離
装置の配置関係を示す概略側面図である。
１・・・用紙剥離装置、２・・・保持板、２ａ・・・補
強突出片、３・・・弾性シート、３ａ・・・剥離爪、１
０・・・感光体ドラム、１１・・・転写器、１２・・・
用紙搬送装置。
代理人 弁理士 江 原 望 外１名＝４−
第１図
革３図FIG. 1 is a schematic explanatory diagram of a known paper peeling device, FIG. 3-2 is a schematic explanatory diagram of a paper peeling device according to an embodiment of the present invention, and FIG. 3 is a schematic explanatory diagram of the paper peeling device in an electrophotographic copying machine. FIG. 2 is a schematic side view showing the arrangement of devices. DESCRIPTION OF SYMBOLS 1... Paper peeling device, 2... Holding plate, 2a... Reinforcement protrusion piece, 3... Elastic sheet, 3a... Peeling claw, 1
0... Photosensitive drum, 11... Transfer device, 12...
Paper transport device. Agent Patent attorney Nozomu Ehara and 1 other person = 4- Figure 1 Figure 3
Claims (1)
ら用紙を剥離する用紙剥離爪と、同用紙剥離爪を補強す
る突出部片を有する用紙剥離爪保持板とを具備して成る
用紙剥離装置。A paper peeling device for an electrophotographic copying machine, etc., comprising a paper peeling claw for peeling paper from a photoreceptor, and a paper peeling claw holding plate having a protruding piece for reinforcing the paper peeling claw. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4636482A JPS58163971A (en) | 1982-03-25 | 1982-03-25 | Form peeling device of electrophotographic system copying machine or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4636482A JPS58163971A (en) | 1982-03-25 | 1982-03-25 | Form peeling device of electrophotographic system copying machine or the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58163971A true JPS58163971A (en) | 1983-09-28 |
Family
ID=12745094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4636482A Pending JPS58163971A (en) | 1982-03-25 | 1982-03-25 | Form peeling device of electrophotographic system copying machine or the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58163971A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013050492A (en) * | 2011-08-30 | 2013-03-14 | Brother Ind Ltd | Cartridge |
| JP2015052764A (en) * | 2013-09-09 | 2015-03-19 | 富士ゼロックス株式会社 | Peeling mechanism, image forming unit, and image forming apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5474443A (en) * | 1977-11-25 | 1979-06-14 | Konishiroku Photo Ind Co Ltd | Separating pawl member |
| JPS5538310B2 (en) * | 1976-05-17 | 1980-10-03 |
-
1982
- 1982-03-25 JP JP4636482A patent/JPS58163971A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5538310B2 (en) * | 1976-05-17 | 1980-10-03 | ||
| JPS5474443A (en) * | 1977-11-25 | 1979-06-14 | Konishiroku Photo Ind Co Ltd | Separating pawl member |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013050492A (en) * | 2011-08-30 | 2013-03-14 | Brother Ind Ltd | Cartridge |
| JP2015052764A (en) * | 2013-09-09 | 2015-03-19 | 富士ゼロックス株式会社 | Peeling mechanism, image forming unit, and image forming apparatus |
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