JPS6242502B2 - - Google Patents
Info
- Publication number
- JPS6242502B2 JPS6242502B2 JP56001832A JP183281A JPS6242502B2 JP S6242502 B2 JPS6242502 B2 JP S6242502B2 JP 56001832 A JP56001832 A JP 56001832A JP 183281 A JP183281 A JP 183281A JP S6242502 B2 JPS6242502 B2 JP S6242502B2
- Authority
- JP
- Japan
- Prior art keywords
- image
- holding member
- image holding
- metal drum
- metal
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 51
- 239000002184 metal Substances 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000000641 cold extrusion Methods 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 108091008695 photoreceptors Proteins 0.000 description 17
- 239000003973 paint Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/10—Bases for charge-receiving or other layers
- G03G5/102—Bases for charge-receiving or other layers consisting of or comprising metals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Photoreceptors In Electrophotography (AREA)
- Extrusion Of Metal (AREA)
Description
【発明の詳細な説明】
本発明は、静電像またはトナー画像を保持する
ための像保持部材用金属ドラムの製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a metal drum for an image holding member for holding an electrostatic image or a toner image.
静電像またはトナー像は種々のプロセスによつ
て形成される。そして、静電像またはトナー像が
形成される像保持部材としては電子写真感光体と
称せられる光導電層を有する像保持部材と光導電
層を有しない像保持部材とがあります。 Electrostatic or toner images are formed by various processes. Image holding members on which electrostatic images or toner images are formed include image holding members that have a photoconductive layer and those that do not have a photoconductive layer, which are called electrophotographic photoreceptors.
像保持部材は、通常、支持体とその上にある像
保持層から構成される。 An image-bearing member usually consists of a support and an image-bearing layer thereon.
電子写真感光体は所定の特性を得るためあるい
は適用される電子写真プロセスの種類に応じて
種々の構成をとるものである。電子写真感光体の
代表的なものとして支持体上に像保持層として光
導電層が形成されている感光体および像保持層と
して光導電層とその上の絶縁層との積層を備えた
感光体があり広く用いられている。支持体と光導
電層から構成される感光体は最も一般的な電子写
真プロセスによる。即ち、帯電、画像露光および
現像、更に必要に応じて転写による画像形成に用
いられる。また絶縁層を備えた感光体についてこ
の絶縁層は光導電層の保護、感光体の機械的強度
の改善、暗減衰特性の改善、または、特定の電子
写真プロセスに適用されるため、等の目的のため
に設けられるものである。このような絶縁層を有
する感光体または、絶縁層を有する感光体を用い
る電子写真プロセスの代表的な例は、例えば、米
国特許第2860048号公報、特公昭41−16429号公
報、特公昭38−15446号公報、特公昭46−3713号
公報、特公昭42−23910号公報、特公昭43−24748
号公報、特公昭42−19747号公報、特公昭36−
4121号公報などに記載されている。 Electrophotographic photoreceptors have various configurations in order to obtain predetermined characteristics or depending on the type of electrophotographic process to which they are applied. Typical electrophotographic photoreceptors include a photoreceptor in which a photoconductive layer is formed as an image-retaining layer on a support, and a photoreceptor in which a photoconductive layer is laminated as an image-retaining layer and an insulating layer thereon. is widely used. The photoreceptor, which is composed of a support and a photoconductive layer, is produced by the most common electrophotographic process. That is, it is used for charging, image exposure, development, and, if necessary, image formation by transfer. For photoreceptors equipped with an insulating layer, this insulating layer can be used to protect the photoconductive layer, improve the mechanical strength of the photoreceptor, improve dark decay characteristics, or be applied to certain electrophotographic processes. It is established for the purpose of Typical examples of electrophotographic processes using such a photoreceptor having an insulating layer or a photoreceptor having an insulating layer include, for example, U.S. Pat. Publication No. 15446, Special Publication No. 1971-3713, Publication No. 23910 of Special Publication No. 1972, Publication No. 24748 of Special Publication No. 1973
Publication No. 19747, Special Publication No. 1974, Special Publication No. 1974-
It is described in Publication No. 4121, etc.
電子写真感光体には所定の電子写真プロセスに
適用されて、静電像が形成され、この静電像は現
像されて可視化される。 A predetermined electrophotographic process is applied to the electrophotographic photoreceptor to form an electrostatic image, and this electrostatic image is developed and visualized.
光導電層を有しない像保持部材の代表的な構成
は、像保持層として絶縁層を有するものであり、
こ像保持部材の用途の代表的ないくつかは次に説
明される。 A typical structure of an image holding member without a photoconductive layer is one having an insulating layer as an image holding layer,
Some typical uses of the image holding member will now be described.
(1)例えば、特公昭32−7115号公報、特公昭32−
8204号公報、特公昭43−1559号公報に記載されて
いるように、電子写真感光体の繰返し使用性の改
善の目的で電子写真感光体に形成された静電像を
光導電層を持たない像保持部材に転写して現像を
行い、次いでトナー画像は記録体に転写される。
この電子写真プロセスに用いられる像保持部材。
(2)また、電子写真感光体に形成された静電像に対
応させて光導電層を持たない像保持部材に静電像
を形成させる他の電子写真プロセスとして、例え
ば、特公昭45−30320号公報、特公昭48−5063号
公報、特公昭51−341号公報などに記載されてい
るように、多数の微細な開口を有するスクリーン
状の電子写真感光体に所定の電子写真プロセスに
よつて静電像を形成し、この静電像を介して光導
電層を持たない像保持部材にコロナ帯電処理を行
なうことにより、コロナのイオン流を変調させて
静電像を光導電層を持たない像保持部材に形成さ
せて、これをトナー現像して記録体に転写させて
最終画像を形成するプロセスが挙げられる。この
電子写真プロセスに用いられる像保持部材。(3)ま
た、他の電子写真プロセスによれば、電子写真感
光体もしくは光導電層を持たない像保持部材に形
成されたトナー画像を直接記録体に転写しないで
さらに他の光導電層を持たない像保持部材に転写
し、次いでこの像保持部材から記録体にトナー画
像を転写して定着する。この電子写真プロセスに
用いられる像保持部材。このプロセスはカラー画
像の形成あるいは高速複写に特に有効である。記
録体は通常、紙、フイルムいつた屈曲性に富んだ
ものが多く、そのために、三色画像を正確に位置
合せをしながら記録体に転写するよりも、変形を
殆ど生ずることがないような材料で形成できる像
保持部材に三色画像を転写し、これを一度に記録
体に転写した方がより正確に位置合されたカラー
画像が形成される。また、複写の高速化に対して
も、トナー画像が像保持部材を経て記録体に転写
されることは有効である。(4)また、他のプロセス
として、多針電極に電気信号を印加して光導電層
を持たない像保持部材表面に、電気信号に応じた
静電像を形成し、これは現像して画像とすること
ができるものであります。この電子写真プロセス
に用いられる像保持部材、などがある。 (1) For example, Japanese Patent Publication No. 32-7115, Japanese Patent Publication No. 32-7115,
As described in Japanese Patent Publication No. 8204 and Japanese Patent Publication No. 43-1559, electrostatic images formed on electrophotographic photoreceptors without a photoconductive layer are used for the purpose of improving the repeatability of electrophotographic photoreceptors. The toner image is transferred to an image holding member and developed, and then the toner image is transferred to a recording medium.
An image holding member used in this electrophotographic process.
(2) In addition, as another electrophotographic process in which an electrostatic image is formed on an image holding member without a photoconductive layer in correspondence with an electrostatic image formed on an electrophotographic photoreceptor, for example, Japanese Patent Publication No. 45-30320 As described in Japanese Patent Publication No. 48-5063, Japanese Patent Publication No. 51-341, etc., a screen-shaped electrophotographic photoreceptor having a large number of minute openings is coated with a predetermined electrophotographic process. By forming an electrostatic image and applying corona charging to an image holding member that does not have a photoconductive layer through this electrostatic image, the ion flow of the corona is modulated and the electrostatic image does not have a photoconductive layer. An example of this process is to form an image on an image holding member, develop it with toner, and transfer it to a recording medium to form a final image. An image holding member used in this electrophotographic process. (3) In addition, according to other electrophotographic processes, a toner image formed on an electrophotographic photoreceptor or an image holding member without a photoconductive layer is not directly transferred to a recording medium, but instead a toner image formed on an electrophotographic photoreceptor or an image holding member without a photoconductive layer is added. Then, the toner image is transferred from this image holding member to a recording medium and fixed. An image holding member used in this electrophotographic process. This process is particularly useful for forming color images or for high speed copying. Recording media are usually flexible materials such as paper or film, and for this reason, it is possible to transfer a three-color image onto a recording media while accurately aligning the image, which causes almost no deformation. A more accurately aligned color image is formed by transferring a three-color image to an image-bearing member that can be formed from a material and then transferring it to a recording medium at once. Furthermore, it is effective for speeding up copying that the toner image is transferred to the recording medium via the image holding member. (4) As another process, an electric signal is applied to a multi-needle electrode to form an electrostatic image in accordance with the electric signal on the surface of an image holding member that does not have a photoconductive layer, and this is developed to form an image. It is something that can be done. There are image holding members used in this electrophotographic process.
電子写真に用いられる像保持部材は、コロナ帯
電処理、現像処理、クリーニング処理などの種々
の電気的機械的衝撃を受けるため、損傷を受け易
い。そして、像保持部材が一度損傷を受けると形
成される画像の画質は著しく低下する。そこで、
性能が低下した像保持部材は取りはずされて交換
されるものである。従つて、像保持部材も消耗品
であり、製造の容易性、コストなどについて優れ
ていることが要求される。ところで、従来の像保
持部材の内で製造上、およびコスト的に最も問題
とされていた要素は支持体である。この支持体は
一般には金属ドラムが多く使われている。金属ド
ラムは熔融した金属を環状の開口部を有する型に
流し込み、その環状開口部を通過している間に金
属は冷却されて形成されたものを使用してきたも
のが多い。いわゆる押出材成形によるものであ
る。しかし乍ら、このようにして製造された金属
ドラムは型から引いて作られるために表面平滑性
がないので支持体として使用するために研摩処理
という二次加工が必要であつた。また、この研摩
処理により金属ドラムの厚さが減ずるので予め厚
く成型する必要もあつた。このように、従来の金
属ドラムを使用した場合には研摩処理を必要と
し、また、必要以上に厚い肉厚のドラムを必要と
するために、製造コストが非常に大きいものであ
つた。また、このようにして形成される金属ドラ
ムは底部がないので像保持部材として複写装置の
本体に装置させるためには、そのための接合部材
としてのフランジを別途形成して金属ドラムに一
体的に取り付ける必要があり、製造上多くの作業
工程を必要とするものであつた。 Image holding members used in electrophotography are easily damaged because they are subjected to various electrical and mechanical shocks during corona charging treatment, development treatment, cleaning treatment, and the like. Once the image holding member is damaged, the quality of the image formed will be significantly reduced. Therefore,
An image holding member whose performance has deteriorated is removed and replaced. Therefore, the image holding member is also a consumable item and is required to be easy to manufacture and to be excellent in terms of cost. By the way, the element that has been the most problematic in terms of manufacturing and cost in conventional image holding members is the support. Generally, a metal drum is often used as this support. Many metal drums have been used in which molten metal is poured into a mold having an annular opening, and the metal is cooled while passing through the annular opening. This is done by so-called extrusion molding. However, since the metal drum produced in this manner is drawn from a mold, it lacks surface smoothness, and therefore requires secondary processing such as polishing in order to be used as a support. Furthermore, since the thickness of the metal drum was reduced by this polishing process, it was necessary to mold it thickly in advance. As described above, when a conventional metal drum is used, a polishing process is required, and a drum with an unnecessarily thick wall is required, resulting in a very high manufacturing cost. In addition, since the metal drum formed in this way does not have a bottom, in order to install it in the main body of a copying machine as an image holding member, a flange as a joining member for that purpose is separately formed and attached integrally to the metal drum. This was necessary and required many work processes in manufacturing.
而して本発明は、製造が容易で且つコストも小
さい支持体を備えた像保持部材用金属ドラムの製
造方法を提供することを主たる目的とする。また
本発明は、像保持部材の駆動加工が一体的に形成
されている支持体を有する像保持部材を提供する
ことを目的とする。 The main object of the present invention is therefore to provide a method for manufacturing a metal drum for an image holding member, which is easy to manufacture and has a low-cost support. Another object of the present invention is to provide an image holding member having a support body in which the driving process of the image holding member is integrally formed.
本発明による像保持部材用の金属ドラムの製造
方法は、金属ドラムの一方の端面が金属ドラムの
周面と連続して一体となつており、且つ該一方の
端面には凹部又は凸部を有する駆動用加工部を備
えている金属ドラムを、金属材料の衝撃冷間押出
し加工工程で同時に成型加工することを特徴とす
るものである。金属材料の衝撃冷間押出し加工に
よる金属ドラムは、スラグ（加工される金属片）
を型わくに置いた状態でスラグにパンチで衝撃を
加えることによりスラグが瞬時に筒に変形して形
成される。このようにして形成される金属ドラム
は表面平滑性がよく、２次加工としての研摩処理
が不要である。また、２次加工が不要であるの
で、２次加工のための機械的強度も必要とせず、
像保持部材として必要の強度の金属ドラムを形成
でき、その結果、肉厚の薄い金属ドラムを形成す
ることもでき軽量性の像保持部材を製造すること
もできる。このように、衝撃冷間押出し加工によ
つて形成された金属ドラムを用いることによつ
て、製造が容易で、コストが低く、さらに軽量の
像保持部材の製造ができるものである。またさら
に、衝撃冷間押出し加工によつて形成される金属
ドラムの一方の端部は閉じられた底部になつてい
る。この底部は形成に用いた円板状のスラグのパ
ンチを受けた面とは反対側の面に相当する。この
底部に像保持部材の駆動用加工を施すことによつ
て極めて簡単に複写装置に装着可能な像保持部材
を製造することができる。またこの場合、スラグ
を載置する型わくの凹部の底面に駆動用加工を施
すための凹凸が設けられておれば、像保持部材の
駆動用加工は衝撃冷間押出し加工の際、同時に施
され得るものである。また、金属ドラムを像保持
層形成用塗料、例えば、光導電性粒子を分散含有
している塗料中に浸漬し、引き上げることによつ
て像保持層を塗膜形成する場合にも、このような
底部を下側にして浸漬させることで、塗料が金属
ドラムの内側に回り込んで金属ドラムの内壁を汚
染することがなく、製造上非常に有利である。 In the method of manufacturing a metal drum for an image holding member according to the present invention, one end surface of the metal drum is continuous and integrated with the circumferential surface of the metal drum, and the one end surface has a recessed portion or a convex portion. The present invention is characterized in that a metal drum equipped with a driving processing section is simultaneously molded in the impact cold extrusion process of metal materials. Metal drums produced by impact cold extrusion processing of metal materials are produced using slag (metal pieces to be processed).
By applying an impact to the slag with a punch while it is placed in the mold frame, the slag instantly transforms into a cylinder. The metal drum thus formed has a good surface smoothness and does not require polishing as a secondary process. In addition, since secondary processing is not required, mechanical strength for secondary processing is not required.
A metal drum having the necessary strength as an image holding member can be formed, and as a result, a metal drum with a thin wall thickness can also be formed, and a lightweight image holding member can also be manufactured. As described above, by using a metal drum formed by impact cold extrusion, it is possible to manufacture an image holding member that is easy to manufacture, low in cost, and lightweight. Still further, one end of the metal drum formed by impact cold extrusion has a closed bottom. This bottom corresponds to the surface of the disc-shaped slag used for forming the punched surface opposite to the surface that received the punch. By processing the bottom portion for driving the image holding member, it is possible to manufacture an image holding member that can be attached to a copying machine very easily. In this case, if the bottom surface of the concave part of the mold frame on which the slag is placed is provided with an unevenness for driving the image holding member, the driving process of the image holding member can be performed at the same time as the impact cold extrusion process. It's something you get. Also, when forming an image-retaining layer by dipping a metal drum into an image-retaining layer-forming paint, for example, a paint containing dispersed photoconductive particles, and pulling it up, such a method is used. By dipping with the bottom facing down, the paint does not get inside the metal drum and contaminate the inner wall of the metal drum, which is very advantageous in manufacturing.
次に、金属ドラムの底部に駆動用加工を施した
場合の効果について図面により説明する。 Next, the effect of applying driving processing to the bottom of the metal drum will be explained with reference to the drawings.
第１図は従来の像保持部材の代表的な構成を示
している。金属ドラム１の上に像保持層２が形成
されている。金属ドラムの両底面は完全に開口さ
れた状態にあるので、複写装置の本体に装着させ
るためにフランジ３および４が設けられている。
このフランジは像保持部材を駆動させるために必
要な加工が施されたものでありビス５とナツト６
により金属ドラムの端面ａ，a′を押し当て締結さ
れている。このフランジは金属ドラムと複写装置
とを導通させるために金属板で形成されているも
のである。このように従来の像保持部材では別途
加工成形されたフランジを金属ドラムの両面に固
着させる必要があり、製造工程が多く、また複雑
な構成のものである。 FIG. 1 shows a typical configuration of a conventional image holding member. An image holding layer 2 is formed on a metal drum 1. Since both bottom surfaces of the metal drum are completely open, flanges 3 and 4 are provided for attachment to the main body of the copying device.
This flange has undergone the necessary processing to drive the image holding member, and is made up of screws 5 and nuts 6.
The ends a and a' of the metal drum are pressed and fastened together. This flange is formed of a metal plate to provide electrical continuity between the metal drum and the copying device. As described above, the conventional image holding member requires separately formed flanges to be fixed to both sides of the metal drum, requires many manufacturing steps, and has a complicated structure.
第２図は本発明の像保持部材の代表的な１態様
で衝撃冷間押出し加工で形成された金属ドラム７
の一方の端面１１には像保持部材の駆動用加工が
施されている。他方の端面にはフランジ１３が取
り付けられている。この端面１１は本体１０に取
り付けられている連結ギヤ８のフツク９とかみ合
うようになつており、連結ギヤの回転力は像保持
部材に伝動される。 FIG. 2 shows a metal drum 7 formed by impact cold extrusion in a typical embodiment of the image holding member of the present invention.
One end surface 11 of the image holding member is processed for driving the image holding member. A flange 13 is attached to the other end face. This end face 11 is adapted to mesh with a hook 9 of a connecting gear 8 attached to the main body 10, and the rotational force of the connecting gear is transmitted to the image holding member.
第３図は金属ドラム７の端面１１の形状であ
り、連結ギヤ８のフツク９に対応して凸部１２が
形成されている。これは駆動の連結方式によつて
凹部でもかまわない。 FIG. 3 shows the shape of the end surface 11 of the metal drum 7, in which a convex portion 12 is formed corresponding to the hook 9 of the connecting gear 8. As shown in FIG. This may be a recess depending on the drive connection method.
第４図は連結ギヤ８の斜視図でフツク９が形成
されている。端面１１は金属ドラムの一部を構成
している部分であるから、この端面を利用して駆
動用加工を施すことにより、別途成型したフラン
ジの締結は全く不要になる。また、このような端
面の駆動用加工は、金属ドラムの衝撃冷間押出し
加工と同時に形成することができ、殆んど縮時に
加工することができる。特に、この駆動用加工が
第３図に示されるような凹凸部の形成の場合には
一層容易である。 FIG. 4 is a perspective view of the connecting gear 8, in which a hook 9 is formed. Since the end face 11 constitutes a part of the metal drum, by performing driving processing using this end face, there is no need to fasten a separately molded flange. Further, such driving processing of the end face can be performed simultaneously with the impact cold extrusion processing of the metal drum, and can be performed almost at the time of contraction. In particular, this driving process is easier when forming uneven portions as shown in FIG. 3.
また、端面１１は金属ドラムの側面部（胴部）
と連続して一体となつているため、端面の肉厚が
非常に薄くしても材料的強度が優れるから軽量の
像保持部材が形成できるものである。なお、第２
図に示した場合の他、端面に形成される駆動用加
工部は、他の任意の形状であつてもよい。金属ド
ラムの形成には各種金属が適宜用いられるもので
あり、例えば、アルミニウム、ブリキ、鉄、しん
ちゆうなどが用いられる。 In addition, the end surface 11 is the side surface (body) of the metal drum.
Since the image holding member is continuous and integrated with the image holding member, it has excellent material strength even if the wall thickness of the end face is made very thin, so a lightweight image holding member can be formed. In addition, the second
In addition to the case shown in the drawings, the drive processing portion formed on the end face may have any other shape. Various metals are appropriately used to form the metal drum, such as aluminum, tin, iron, and steel.
金属ドラムの肉厚は、通常、0.1〜５mm、特に
は、0.2〜1.5mm程度好適である。また、金属ドラ
ムの表面平滑性は0.1s〜10s、特には1s〜3sが好
適である。 The thickness of the metal drum is usually preferably about 0.1 to 5 mm, particularly about 0.2 to 1.5 mm. Further, the surface smoothness of the metal drum is preferably 0.1 s to 10 s, particularly 1 s to 3 s.
以上説明したように、本発明による像保持部材
は、従来、製造的にまたコスト的に最も大きい要
素である金属ドラムを、極めて簡易に製造するこ
とができ、また、コスト的にも非常に低減され、
さらに像保持部材の顕著な軽量化を達成すること
ができるものである。従つて、使用済の像保持部
材の回収、再生利用という制約は解消され、所
謂、使い拾て可能で、サービスフリーの像保持部
材を提供し得るものである。 As explained above, in the image holding member according to the present invention, the metal drum, which has conventionally been the largest element in terms of manufacturing and cost, can be manufactured extremely easily, and the cost can also be significantly reduced. is,
Furthermore, it is possible to achieve a significant weight reduction of the image holding member. Therefore, the restriction of collecting and recycling used image holding members is eliminated, and it is possible to provide a so-called disposable and service-free image holding member.
また、さらに、第２図に示されるように金属ド
ラムの端面１１が若干ふくらみを有すするように
形成されるのが好適である。これは、金属ドラム
を像保持層形成用塗料中に浸漬し、引上げること
によつて像保持層を塗布形成する場合、金属ドラ
ムの底部への気泡の混入がおこりにくく、又、引
上げるとき、塗料がしずくとしてスムーズに落ち
易い点について有利である。 Furthermore, as shown in FIG. 2, it is preferable that the end surface 11 of the metal drum be formed to have a slight bulge. This is because when the image-retaining layer is applied and formed by dipping the metal drum in the paint for forming the image-retaining layer and pulling it up, air bubbles are less likely to get mixed into the bottom of the metal drum, and when it is pulled up, This is advantageous in that the paint easily falls off smoothly as drops.
第１図は従来の像保持部材の１態様を示す。第
２図は本発明による像保持部材の１態様を示す。
第３図は第２図に示す金属ドラムの端面形状を示
す。第４図は第２図に示す連結ギヤを示す。
２……像保持層、７……金属ドラム、８……連
結ギヤ、９……フツク、１０……本体、１１……
端面、１２……凸部、１３……フランジ。
FIG. 1 shows one embodiment of a conventional image holding member. FIG. 2 shows one embodiment of the image holding member according to the present invention.
FIG. 3 shows the shape of the end face of the metal drum shown in FIG. FIG. 4 shows the connecting gear shown in FIG. 2. 2... Image holding layer, 7... Metal drum, 8... Connection gear, 9... Hook, 10... Main body, 11...
End face, 12... Convex portion, 13... Flange.
Claims (1)
と連続して一体となつており、且つ該一方の端面
には凹部又は凸部を有する駆動用加工部を備えて
いる金属ドラムを、金属材料の衝撃冷間押出し加
工工程で同時に成型加工することを特徴とする像
保持部材用金属ドラムの製造方法。1. A metal drum in which one end surface of the metal drum is continuous and integrated with the circumferential surface of the metal drum, and the one end surface is equipped with a driving processed part having a concave or convex part, is made of metal material. A method for manufacturing a metal drum for an image holding member, characterized in that molding is performed simultaneously in the impact cold extrusion process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP183281A JPS57115560A (en) | 1981-01-08 | 1981-01-08 | Manufacture for metallic drum for image holding member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP183281A JPS57115560A (en) | 1981-01-08 | 1981-01-08 | Manufacture for metallic drum for image holding member |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6026884A Division JPS59210448A (en) | 1984-03-27 | 1984-03-27 | Metallic drum used for image bearing member |
| JP6026984A Division JPS59210449A (en) | 1984-03-27 | 1984-03-27 | Metallic drum used for image bearing member |
| JP6026784A Division JPS59210447A (en) | 1984-03-27 | 1984-03-27 | Metallic drum used for image bearing member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57115560A JPS57115560A (en) | 1982-07-19 |
| JPS6242502B2 true JPS6242502B2 (en) | 1987-09-08 |
Family
ID=11512527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP183281A Granted JPS57115560A (en) | 1981-01-08 | 1981-01-08 | Manufacture for metallic drum for image holding member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57115560A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60239763A (en) * | 1984-05-15 | 1985-11-28 | Canon Inc | Image holding member |
| JPS61163366A (en) * | 1985-01-16 | 1986-07-24 | Canon Inc | Image maintaining member |
| JPS63306484A (en) * | 1987-06-08 | 1988-12-14 | Showa Alum Corp | Cylinder suitable for photosensitive drum or the like of electrophotographic copying machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5479044A (en) * | 1977-12-06 | 1979-06-23 | Fujitsu Ltd | Latent image forming drum for electrostatic printing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5630843Y2 (en) * | 1974-12-05 | 1981-07-22 |
-
1981
- 1981-01-08 JP JP183281A patent/JPS57115560A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5479044A (en) * | 1977-12-06 | 1979-06-23 | Fujitsu Ltd | Latent image forming drum for electrostatic printing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57115560A (en) | 1982-07-19 |
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