JPS6143268B2 - - Google Patents
Info
- Publication number
- JPS6143268B2 JPS6143268B2 JP55148159A JP14815980A JPS6143268B2 JP S6143268 B2 JPS6143268 B2 JP S6143268B2 JP 55148159 A JP55148159 A JP 55148159A JP 14815980 A JP14815980 A JP 14815980A JP S6143268 B2 JPS6143268 B2 JP S6143268B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- drum
- transfer
- outer peripheral
- recess
- 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
- 210000000078 claw Anatomy 0.000 claims description 29
- 238000000926 separation method Methods 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000758 substrate 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
- 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)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Paper Feeding For Electrophotography (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Discharge By Other Means (AREA)
Description
【発明の詳細な説明】
本発明は、例えば電子写真複写機等における転
写紙等の用紙を搬送するために用いられる用紙搬
送ドラム装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper transport drum device used for transporting paper such as transfer paper in, for example, an electrophotographic copying machine.
一般に複数のプロセス領域を順次に通過するよ
う用紙を搬送する場合においては、必要とされる
占有空間の大きさに比してプロセス処理機構を配
設する空間を大きく得ることができることから、
回転する用紙搬送ドラムの外周面上に当該用紙を
担持せしめて搬送することが有利である。 Generally, when paper is conveyed sequentially through multiple process areas, the space for arranging the process processing mechanism can be large compared to the required occupied space.
It is advantageous to transport the paper by carrying it on the outer peripheral surface of a rotating paper transport drum.
斯かる用紙搬送ドラム装置の一例としては、例
えば電子写真複写機の転写ドラム装置を挙げるこ
とができる。即ち、この転写ドラム装置は、通常
の場合には光導電性感光体より成る表層を有する
回転するトナー像支持ドラムと対接して回転する
よう転写ドラムが設けられて成り、その転写ドラ
ムの外周面上に密接するよう転写紙を保持せしめ
て搬送せしめ、これにより、前記トナー像支持ド
ラムとの対接領域によつて形成される転写領域を
通過せしめ、以つて当該トナー像支持体上に電子
写真プロセスによつて形成されたトナー像を主と
して静電的作用により前記転写紙上に転写せしめ
るものである。 An example of such a paper transport drum device is, for example, a transfer drum device of an electrophotographic copying machine. That is, this transfer drum device normally includes a transfer drum that rotates in contact with a rotating toner image support drum having a surface layer made of a photoconductive photoreceptor, and the outer circumferential surface of the transfer drum The transfer paper is conveyed while being held in close contact with the toner image support drum, thereby passing through the transfer area formed by the contact area with the toner image support drum, and thereby transferring the electrophotographic image onto the toner image support. The toner image formed by the process is transferred onto the transfer paper mainly by electrostatic action.
而して斯かる用紙搬送ドラム装置においては、
搬送されるべき転写紙等の用紙を確実に転写ドラ
ム等の用紙搬送ドラムの外周面上に保持してスリ
ツプを生ずることなく当該用紙を当該搬送ドラム
の回転により搬送せしめることができ、しかも当
該用紙を所要の位置又は条件下で確実に当該搬送
ドラムより離脱せしめて例えば次のプロセスに向
う搬送系に送り出し得ることが必要である。 Therefore, in such a paper conveyance drum device,
It is possible to reliably hold the paper such as transfer paper to be conveyed on the outer peripheral surface of a paper conveyance drum such as a transfer drum and convey the paper by the rotation of the conveyance drum without causing slips, and the paper can be conveyed by the rotation of the conveyance drum. It is necessary to be able to reliably remove the material from the transport drum at a desired position or under the required conditions and send it to a transport system for the next process, for example.
このような目的のために従来種々の装置が提案
され又実施されており、用紙を保持する手段とし
ては、用紙の端縁部を搬送ドラムの外周面との間
に挾持するグリツプを当該用紙搬送ドラムに設け
ること等が知られており、又用紙を離脱せしめる
手段としては、用紙の進行方向先頭縁を掬い上げ
てその後は用紙の搬送ガイドともなる分離爪を、
その先端が用紙搬送ドラムの外周面に接近した状
態に設けること等が知られている。 Various devices have been proposed and put into practice for this purpose, and as a means for holding the paper, a grip is used to hold the edge of the paper between the outer circumferential surface of the transport drum. It is known that a separating claw is provided on the drum, and as a means for separating the paper, a separating claw is used that scoops up the leading edge of the paper in the direction of travel and thereafter serves as a transport guide for the paper.
It is known that the tip is provided in a state close to the outer circumferential surface of the paper transport drum.
しかしながら、一般に滑面状態とされている搬
送ドラムの外周面に一旦密接するよう保持された
用紙は、グリツプ等の保持機構による保持力が解
除された状態にあつても分離を図ることが困難で
あり、特に搬送ドラムが電子複写機等の転写ドラ
ムの場合には、通常転写紙が静電力によつて密着
されているため、転写紙の分離を図ることが非常
に困難である。 However, once the paper is held in close contact with the outer peripheral surface of the transport drum, which is generally considered to have a smooth surface, it is difficult to separate the paper even when the holding force of a holding mechanism such as a grip is released. Particularly when the conveyance drum is a transfer drum of an electronic copying machine, etc., it is very difficult to separate the transfer paper because the transfer paper is usually stuck together by electrostatic force.
一方既述の如き分離爪による分離手段において
は、構造は極めて簡単であるという利点を有する
反面、当該分離爪の先端を用紙搬送ドラムの外周
面に接触せしめた場合には、当該搬送ドラムの表
面を擦過して損傷するようになること、或いは当
該分離爪の位置を1回以上通過するよう用紙を搬
送することが必要とされる場合にもそれが不可能
であること等の理由から、特殊な場合を除き、当
該分離爪をその先端が搬送ドラムの外周面に接触
した状態に設けることができない。そしてこの結
果、既述のように用紙が搬送ドラムの外周面に密
接されていることも重なつて、所期の用紙分離作
用が確実に達成されず、実用に供するとしても非
常に微妙な位置調整が必要とされ、しかもなお作
動の信頼性が低い。 On the other hand, the above-mentioned separating means using separation claws has the advantage of an extremely simple structure, but on the other hand, when the tip of the separation claw is brought into contact with the outer peripheral surface of the paper transport drum, the surface of the paper transport drum For some reasons, such as the possibility of scratching and damaging the paper, or the impossibility of transporting the paper so as to pass through the position of the separation claw more than once, Except in certain cases, the separation claw cannot be provided with its tip in contact with the outer peripheral surface of the conveyance drum. As a result, as mentioned above, combined with the fact that the paper is in close contact with the outer circumferential surface of the transport drum, the desired paper separation effect cannot be achieved reliably, and even if it is used in practice, the paper is placed in a very delicate position. Adjustments are required and operation is still unreliable.
このように従来においては、搬送ドラムに対す
る用紙の保持の確実化を図るとそれが分離の困難
性不確実性を増大せしめ、逆に分離の確実化を図
ると保持の不確実性が増大して用紙搬送の確実性
が低下するようになる欠点がある。 In this way, in the past, trying to ensure paper retention on the transport drum increased the difficulty and uncertainty of separation, and conversely, trying to ensure paper separation increased the uncertainty of paper retention. There is a drawback that the reliability of paper conveyance decreases.
本発明は以上の如き欠点を除き、用紙搬送ドラ
ム上に搬送すべき用紙を確実に保持せしめること
ができると共に、当該用紙の分離も確実に行なう
ことができ、高い信頼性をもつて所期の用紙搬送
を確実に達成することのできる用紙搬送ドラム装
置を提供することを目的とする。 The present invention eliminates the above-mentioned drawbacks, makes it possible to reliably hold the paper to be transported on the paper transport drum, and also to reliably separate the paper. It is an object of the present invention to provide a paper transport drum device that can reliably transport paper.
以下図面によつて本発明の実施例について説明
する。 Embodiments of the present invention will be described below with reference to the drawings.
第1図は、本発明を電子複写機の転写ドラムに
適用した場合の説明図であつて、1は転写ドラ
ム、2はこの転写ドラム1の外周面に対接されて
共に回転するトナー像支持ドラム、3は転写紙給
送ガイド、4は転写紙給送ローラーを示し、本発
明においては、第2図〜第4図に示すように、例
えば金属基体1A、中間ゴム層1B、及び表層1
Cより成る転写ドラム1の外周面Sにおける転写
紙保持領域、即ち転写紙P(破線で示す。)が位
置されたときに、その進行方向先頭端縁部H(第
4図において一点鎖線で区画して示す。)により
覆われる軸方向に伸びる領域において、各々当該
領域に局部的に位置するよう、例えば2つの凹所
5,5を互に軸方向に離間して形成する。この各
凹所5は、段部6を介して前記外周面Sに続く平
坦な底面7を有するものとし、付勢されて当該凹
所5の底面7に圧接されるグリツプ爪8及びその
駆動機構を当該転写ドラム1に設ける。 FIG. 1 is an explanatory diagram when the present invention is applied to a transfer drum of an electronic copying machine, in which 1 is a transfer drum, and 2 is a toner image support that is in contact with the outer peripheral surface of this transfer drum 1 and rotates with it. 3 is a transfer paper feeding guide, and 4 is a transfer paper feeding roller. In the present invention, as shown in FIGS. 2 to 4, for example, a metal substrate 1A, an intermediate rubber layer 1B, and a surface layer 1
When the transfer paper holding area on the outer circumferential surface S of the transfer drum 1 consisting of C, that is, the transfer paper P (indicated by the broken line) is positioned, the leading edge H in the advancing direction (demarcated by the dashed line in FIG. 4) For example, two recesses 5, 5 are formed spaced apart from each other in the axial direction so as to be located locally in each region in the axially extending region covered by the recesses 5, 5, respectively. Each recess 5 has a flat bottom surface 7 that continues to the outer circumferential surface S via a step 6, and includes a grip pawl 8 that is pressed against the bottom surface 7 of the recess 5 and its drive mechanism. is provided on the transfer drum 1.
具体例には、前記凹所5において転写ドラム1
に形成した貫通孔9内に半径方向に進退自在なロ
ツド10を設け、その外端に転写ドラム1の回転
方向と逆の方向に突出するグリツプ爪8を固定し
て前記凹所5に臨ませ、当該ロツド10を半径方
向内方に抑制するスプリング11を転写ドラム1
との間に設け、更に前記ロツド10の内端を前記
スプリング11に抗して外方に押し上げる駆動杆
12を転写ドラム1の内部空間13内に設け、こ
の駆動杆12には、図では省略するが、指令信号
によつて作動するソレノイドとカム機構を連結す
る。 In a specific example, the transfer drum 1 is placed in the recess 5.
A rod 10 that can move forward and backward in the radial direction is provided in the through hole 9 formed in the hole 9, and a grip claw 8 that projects in the opposite direction to the rotational direction of the transfer drum 1 is fixed to the outer end of the rod 10 so as to face the recess 5. , a spring 11 that restrains the rod 10 inward in the radial direction is attached to the transfer drum 1.
A drive rod 12 is provided in the internal space 13 of the transfer drum 1 for pushing the inner end of the rod 10 outward against the spring 11. However, a solenoid activated by a command signal is connected to a cam mechanism.
又以上の転写ドラム1の外周面Sに沿つた領域
において、第4図に示すように、前記凹所5が当
該転写ドラム1の回転によつて移動する経路R
(二点鎖線で示す。)から軸方向に変位した位置に
おいて、先端14が当該転写ドラム1の外周面S
と極く接近するよう分離爪15を配設する。 Further, in the area along the outer circumferential surface S of the transfer drum 1, as shown in FIG.
(indicated by the two-dot chain line), the tip 14 is located on the outer circumferential surface S of the transfer drum 1.
The separation claw 15 is arranged so as to be very close to the .
本発明は以上のような構成であつて、次のよう
に動作して転写紙が搬送される。即ち、第1図に
示すように、転写ドラム1が休止状態にあり、且
つ第2図に示すように駆動杆12が駆動されてい
てこれによりスプリング11に抗してロツド10
が押し上げられ、従つてグリツプ爪8が開いた状
態において、転写紙給送指令信号により転写紙給
送ローラー4が駆動されて転写紙給送ガイド3に
沿つて転写紙Pが送り出される。そしてその先頭
端縁部Hがグリツプ爪8と凹所5との間に挿入さ
れると駆動杆12の付勢状態が解除され、この結
果ロツド10がスプリング11の作用により内方
に引き込まれて、第5図に示すように、グリツプ
爪8が凹所5内に落ちて転写紙Pの先頭端縁部H
における対応する被挾持部分Mがグリツプ爪8と
凹所5の底面7との間に挾圧保持される。その後
転写ドラム1が転写紙Pを巻き取る方向に回転さ
れ、これによつて転写紙Pが搬送され、トナー像
支持ドラム2との対接領域を通過するときにトナ
ー像が転写される。 The present invention has the above-described configuration, and the transfer paper is conveyed by operating as follows. That is, as shown in FIG. 1, the transfer drum 1 is in a rest state, and as shown in FIG.
is pushed up and the grip claws 8 are opened, the transfer paper feed roller 4 is driven by the transfer paper feed command signal, and the transfer paper P is sent out along the transfer paper feed guide 3. When the leading end edge H is inserted between the grip pawl 8 and the recess 5, the biasing state of the drive rod 12 is released, and as a result, the rod 10 is pulled inward by the action of the spring 11. , as shown in FIG.
A corresponding clamped portion M is held between the grip claws 8 and the bottom surface 7 of the recess 5. Thereafter, the transfer drum 1 is rotated in a direction to wind up the transfer paper P, thereby conveying the transfer paper P, and transferring the toner image when it passes through an area in contact with the toner image support drum 2.
斯くして1回又はそれ以上の転写領域を通過し
た転写紙を分離するときには、分離爪15の位置
する手前の位置において、駆動杆12が再び付勢
されてグリツプ爪8が開き、転写紙Pの先頭端縁
が分離爪15の先端14に掬い上げられ、転写紙
Pは当該分離爪15をガイドとして転写ドラム1
の外周面Sから分離され、例えば定着器を構成す
る後続の搬送系に供給される。 When separating the transfer paper that has passed through the transfer area once or more in this manner, the drive rod 12 is again energized to open the grip claw 8 at a position in front of the separation claw 15, and the transfer paper P is separated. The leading edge of the paper P is scooped up by the tip 14 of the separating claw 15, and the transfer paper P is transferred to the transfer drum 1 using the separating claw 15 as a guide.
The recording medium is separated from the outer peripheral surface S of the recording medium, and is supplied to a subsequent conveyance system that constitutes, for example, a fixing device.
このように本発明においては、グリツプ爪8に
より転写紙Pを転写ドラム1の外周面S上に確実
に保持固定せしめることができてスリツプを伴う
ことなく、即ち転写ドラム1の回転と共に転写紙
Pを搬送することができる。 In this way, in the present invention, the transfer paper P can be reliably held and fixed on the outer peripheral surface S of the transfer drum 1 by the grip claws 8, and the transfer paper P can be held and fixed on the outer peripheral surface S of the transfer drum 1 without slipping. can be transported.
而して本発明においては、転写紙Pの先頭端縁
部Hに局部的に位置する被挾持部分Mを、転写ド
ラム1の外周面Sより低い凹所5の底面7に対し
てグリツプ爪8により挾圧せしめることにより、
転写ドラム1に対する転写紙Pの保持を達成せし
めるようにしているため、「グリツプ爪8の挾圧
状態を解除すると、第6図に示すように、転写紙
Pの先頭端縁部Hは当該転写紙P自体のコシの強
さにより、その被挾持部分Mが凹部5の底面7よ
り浮き上がると共に、当該被挾持部分Mの両側縁
にはいわゆる折りぐせF,Fがついているため、
当該被挾持部分M以外の自由部分Nが転写ドラム
1の外周面Sより大きく浮き上がつた状態とな
る。 According to the present invention, the gripped portion M located locally at the leading edge H of the transfer paper P is pressed against the bottom surface 7 of the recess 5 lower than the outer peripheral surface S of the transfer drum 1 by the grip claws 8. By applying pressure to the
Since the transfer paper P is held against the transfer drum 1, when the clamping pressure of the grip claws 8 is released, the leading edge H of the transfer paper P is removed from the transfer drum 1, as shown in FIG. Due to the stiffness of the paper P itself, the held portion M rises above the bottom surface 7 of the recess 5, and the both sides of the held portion M have so-called folds F, F.
The free portion N other than the clamped portion M is raised above the outer circumferential surface S of the transfer drum 1.
然るに本発明においては、分離爪15をこの自
由部分Nが通過する位置に設けられているため、
分離爪15の先端14を確実に転写紙Pの内面側
に相対的に進入せしめることができ、結局転写ド
ラム1の外周面Sに対する分離爪15の先端14
の離間距離に厳しい条件が課されることなく、転
写紙Pを確実に転写ドラム1より分離せしめるこ
とができる。そしてこの自由部分Nを浮き上がら
せる析りぐせは、前記グリツプ爪8による挾圧力
が大きい程確実に得られるから、転写紙Pの強固
で確実な保持と確実な分離とを共に達成すること
ができる。 However, in the present invention, since the separating claw 15 is provided at a position through which this free portion N passes,
The tip 14 of the separation claw 15 can be reliably entered into the inner surface of the transfer paper P, and as a result, the tip 14 of the separation claw 15 can be moved relative to the outer peripheral surface S of the transfer drum 1.
The transfer paper P can be reliably separated from the transfer drum 1 without imposing strict conditions on the separation distance. And since the sag that lifts the free portion N is more reliably obtained as the clamping pressure by the grip claws 8 is greater, it is possible to achieve both strong and reliable holding of the transfer paper P and reliable separation. .
以上において、前記凹所5の段部6は、転写紙
Pを損傷せしめないよう斜面の内周面により形成
されることが好ましい。しかしあまりに緩かな斜
面とすると上述の作用効果が減少する。この斜面
の勾配及び凹所5の深さは、転写紙Pの紙質、厚
さ、グリツプ爪8の挾圧力等を考慮して適宜選定
することができよう。尚具体的一例におけるグリ
ツプ爪8の厚さは1.5mm、凹所5の深さは2mm、
軸方向幅は15mm、長さは15mmである。 In the above, it is preferable that the stepped portion 6 of the recess 5 be formed by the inner circumferential surface of a slope so as not to damage the transfer paper P. However, if the slope is too gentle, the above-mentioned effects will be reduced. The slope of the slope and the depth of the recess 5 may be appropriately selected in consideration of the quality and thickness of the transfer paper P, the clamping pressure of the grip claws 8, and the like. In one specific example, the thickness of the grip claw 8 is 1.5 mm, the depth of the recess 5 is 2 mm,
The axial width is 15 mm and the length is 15 mm.
以上において、駆動杆12を付勢或いは消勢せ
しめる駆動機構の制御は、例えば搬送すべき転写
紙Pの位置を検出する検出機構、タイマーその他
を含む任意の制御装置により行なうことができ
る。 In the above, the drive mechanism for energizing or deenergizing the drive rod 12 can be controlled by any control device including, for example, a detection mechanism for detecting the position of the transfer sheet P to be conveyed, a timer, and the like.
以上本発明を電子複写機の転写ドラム1に適用
した例について述べたが、本発明を他の回転ドラ
ムによる用紙搬送装置に適用し得ることは勿論で
ある。 Although an example in which the present invention is applied to the transfer drum 1 of an electronic copying machine has been described above, it goes without saying that the present invention can be applied to paper conveyance devices using other rotating drums.
又本発明においては、例えば凹所5及びグリツ
プ爪8の数、グリツプ爪8の駆動機構、分離爪1
5の形状等について種々変更を加えることができ
る。 Further, in the present invention, for example, the number of recesses 5 and grip claws 8, the drive mechanism of grip claws 8, and the separation claws 1
Various changes can be made to the shape etc. of 5.
以上のように本発明によれば極めて簡単な構成
により、用紙搬送ドラム上に搬送すべき用紙を確
実に保持せしめることができると共に、当該用紙
の分離も確実に行なうことができ、高い信頼性を
もつて所期の搬送を確実に達成することのできる
用紙搬送ドラム装置を提供することができる。 As described above, according to the present invention, with an extremely simple configuration, it is possible to reliably hold the paper to be transported on the paper transport drum, and also to reliably separate the paper, resulting in high reliability. Thus, it is possible to provide a paper transport drum device that can reliably achieve the desired transport.
第1図は本発明電子複写機の転写ドラムに適用
した例を示す説明図、第2図は本発明の要部につ
いて示す断面図、第3図は本発明の構成要素の位
置関係を示すドラムの軸方向に沿つた説明用断面
図、第4図は本発明の構成要素及び用紙の位置関
係を示すドラム外周面を展開した状態の説明図、
第5図及び第6図はそれぞれ本発明の作用効果に
ついての説明図である。
1……転写ドラム、2……トナー像支持ドラ
ム、3……転写紙給送ガイド、4……転写紙給送
ローラー、5……凹所、6……段部、7……底
面、8……グリツプ爪、9……貫通孔、10……
ロツド、11……スプリング、12……駆動杆、
13……内部空間、15……分離爪、S……外周
面、P……転写紙。
FIG. 1 is an explanatory diagram showing an example of application to a transfer drum of an electronic copying machine according to the present invention, FIG. 2 is a sectional view showing main parts of the present invention, and FIG. 3 is a drum showing the positional relationship of the constituent elements of the present invention. FIG. 4 is an explanatory sectional view taken along the axial direction of the drum, and FIG.
FIG. 5 and FIG. 6 are explanatory views of the effects of the present invention, respectively. DESCRIPTION OF SYMBOLS 1...Transfer drum, 2...Toner image support drum, 3...Transfer paper feeding guide, 4...Transfer paper feeding roller, 5...Recess, 6...Step, 7...Bottom surface, 8 ...Grip claw, 9...Through hole, 10...
Rod, 11...Spring, 12...Driving rod,
13...Inner space, 15...Separation claw, S...Outer peripheral surface, P...Transfer paper.
Claims (1)
ラムの外周面上に位置される搬送されるべき用紙
の先頭端縁部により覆われる当該用紙搬送ドラム
の外周面における軸方向領域に局部的に形成した
凹所と、前記ドラムに設けた、前記用紙の先頭端
縁部の対応する部分を前記凹所の底面との間で挾
圧するグリツプと、前記用紙搬送ドラムの回転に
よる前記凹所の移動路から当該用紙搬送ドラムの
軸方向に変位した位置において、当該ドラムの外
周面に沿つて設けた用紙分離爪とより成ることを
特徴とする用紙搬送ドラム装置。1. Locally formed in the axial direction region of the outer peripheral surface of the paper transport drum that is covered by the rotating paper transport drum and the leading edge of the paper to be transported, which is located on the outer peripheral surface of the paper transport drum. a recess, a grip provided on the drum that clamps a corresponding portion of the leading edge of the paper against a bottom surface of the recess, and a path of movement of the recess due to rotation of the paper transport drum. A paper transport drum device comprising a paper separation claw provided along the outer peripheral surface of the drum at a position displaced in the axial direction of the paper transport drum.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55148159A JPS5772153A (en) | 1980-10-24 | 1980-10-24 | Drum device for conveying paper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55148159A JPS5772153A (en) | 1980-10-24 | 1980-10-24 | Drum device for conveying paper |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5772153A JPS5772153A (en) | 1982-05-06 |
JPS6143268B2 true JPS6143268B2 (en) | 1986-09-26 |
Family
ID=15446571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55148159A Granted JPS5772153A (en) | 1980-10-24 | 1980-10-24 | Drum device for conveying paper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5772153A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62197651U (en) * | 1986-06-09 | 1987-12-16 | ||
JPS62200646U (en) * | 1986-11-04 | 1987-12-21 | ||
JPS63116458U (en) * | 1987-01-23 | 1988-07-27 |
-
1980
- 1980-10-24 JP JP55148159A patent/JPS5772153A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5772153A (en) | 1982-05-06 |
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